Patent Publication Number: US-9835381-B2

Title: Double walled evaporator with heat exchange

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application claims the benefit of: U.S. Non-Provisional patent application Ser. No. 14/799,425 filed on Jul. 14, 2015 and U.S. Provisional Patent Application Ser. No. 62/024,463 filed Jul. 14, 2014 and entitled “EVAPORATOR WITH HEAT EXCHANGE” hereby expressly incorporated by reference in their entirety. Furthermore, any and all priority claims identified in the Application Data Sheet, or any correction thereto, are hereby incorporated by reference under 37 C.F.R. §1.57. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates to automatic ice making systems, with particular focus onto the evaporator and assembly. 
     BACKGROUND OF THE INVENTION 
     Automatic ice machine systems are comprised of a refrigeration system, which is comprised of at least one compressor, at least one condenser, at least one receiver, at least one evaporator, and refrigerant which cycles through the refrigeration system in a controlled manner in order to systematically produce ice for harvesting. A portion of the refrigeration cycle includes the refrigerant traveling from the receiver to the evaporator wherein the refrigerant undergoes a transformative process during the entrance into the chamber of the evaporator, the evaporator&#39;s chamber intent is to freeze received liquid into ice. A lot of energy is used to convert the hot vapor refrigerant into its cooler counterpart prior to entrance into the evaporator. There is a need for the refrigerant to undergo a cooling process prior to entrance into the chamber of the evaporator so as to reduce the time and energy costs associated with refrigerant cooling process. 
     SUMMARY OF THE INVENTION 
     In one inventive aspect, there is an evaporator with heat exchange apparatus. The apparatus includes, a first inlet means to allow refrigerant into a casing covering an evaporator. The apparatus also includes, an evaporator with a plurality of parallel tubes longitudinally disposed within the evaporator configured to maintain liquid for freezing into solid. The apparatus further includes a first chamber distributed along a first side surface area between a first side of a casing and a first side of an evaporator configured to receive refrigerant from the first inlet means. The first chamber acts as a first heat exchange allowing the refrigerant received from the first inlet means to undergo heat transfer and reduction in temperature due to thermal exchange with the first side of the evaporator. The apparatus further includes a second chamber distributed along second side surface area between a second side of the casing and a second side of the evaporator configured to receive refrigerant from the first chamber. The second chamber acts as a second heat exchange allowing the refrigerant received from the first chamber to undergo heat transfer and reduction in temperature due to thermal exchange with the second side of the evaporator. The apparatus further includes a third chamber existing among a hollow center chamber of the evaporator configured to receive refrigerant from the second chamber. The third chamber acts as a third heat exchange allowing the refrigerant received from the second chamber to undergo heat transfer and reduction in temperate due to thermal exchange with the evaporator as the refrigerant passes along the hollow center chamber of the evaporator. The apparatus further includes a fourth chamber distributed along a fourth side surface area between a fourth side of the casing and a fourth side of the evaporator configured to receive refrigerant form the third chamber. The fourth chamber acts as a fourth heat exchange allowing the refrigerant received from the third chamber to undergo a heat transfer and reduction in temperature due to thermal exchange with the fourth side of the evaporator. The fourth chamber and the second chamber may be on opposite sides of the evaporator. The apparatus further includes a first outlet means to allow the refrigerant to exit the casing. The apparatus further includes a second inlet means configured to allow the refrigerant to enter the evaporator after exiting the casing and distribute the refrigerant within the evaporator. The apparatus further includes a second outlet means allows the refrigerant to exit the evaporator and cycle through a refrigeration system. 
     In another inventive aspect, there is an evaporator with dual piped liquid line heat exchange apparatus. The apparatus includes, an evaporator having a plurality of parallel tubes longitudinally disposed within the evaporator configured to maintain liquid for freezing into solid. The apparatus also includes a dual piped liquid line, having an outer pipe first inlet means configured to allow refrigerant into a casing covering the evaporator and an inner pipe second outlet means configured to allows the refrigerant to exit the evaporator and cycle through a refrigeration system. The inner pipe having cold liquid refrigerant and the outer pipe having hot gaseous refrigerant. The outer pipe acts as a fifth heat exchange allowing the refrigerant received from the refrigeration system to undergo heat transfer and reduction in temperate due to thermal exchange with the inner pipe as the refrigerant passes through the dual piped liquid line. The apparatus further includes a first chamber distributed along a first side surface area between a first side of a casing and a first side of an evaporator configured to receive refrigerant from the outer pipe first inlet means. The first chamber acts as a first heat exchange allowing the refrigerant received from the first inlet means to undergo heat transfer and reduction in temperature due to thermal exchange with the first side of the evaporator. The apparatus further includes a second chamber distributed along second side surface area between a second side of the casing and a second side of the evaporator configured to receive refrigerant from the first chamber. The second chamber acts as a second heat exchange allowing the refrigerant received from the first chamber to undergo heat transfer and reduction in temperature due to thermal exchange with the second side of the evaporator. The apparatus further includes a third chamber existing among a hollow center chamber of the evaporator configured to receive refrigerant from the second chamber. The third chamber acts as a third heat exchange allowing the refrigerant received from the second chamber to undergo heat transfer and reduction in temperate due to thermal exchange with the evaporator as the refrigerant passes along the hollow center chamber of the evaporator. The apparatus further includes, a fourth chamber distributed along a fourth side surface area opposite the second chamber between a fourth side of the casing and a fourth side of the evaporator configured to receive refrigerant form the third chamber. The fourth chamber acts as a fourth heat exchange allowing the refrigerant received from the third chamber to undergo a heat transfer and reduction in temperature due to thermal exchange with the fourth side of the evaporator. The apparatus further includes a first outlet means to allow the refrigerant to exit the casing. The apparatus further includes a second inlet means configured to allow the refrigerant to enter the evaporator after exiting the casing and distribute the refrigerant within the evaporator. 
     In another inventive aspect, there is an evaporator with space reducers and integrated heat exchange apparatus. The apparatus includes a first inlet means to allow refrigerant into a casing covering an evaporator. The apparatus also includes an evaporator having: a plurality of parallel tubes longitudinally disposed within the evaporator configured to maintain liquid for freezing into solid, a plurality of parallel custom shaped solid tubes longitudinally disposed along an interior perimeter of the evaporator; a center custom shaped solid tube longitudinally disposed along the center of the evaporator. The plurality of parallel custom shaped solid tubes longitudinally disposed along an interior perimeter of the evaporator are comprised of metallic substance which does not interact with the refrigerant. The plurality of parallel custom shaped solid tubes longitudinally disposed along an interior perimeter of the evaporator are fitted permanently into position. The center solid tube longitudinally disposed along the center of the evaporator has a hollow center portion. The apparatus further including a first chamber distributed along a first side surface area between a first side of a casing and a first side of an evaporator configured to receive refrigerant from the first inlet means. The first chamber acts as a first heat exchange allowing the refrigerant received from the first inlet means to undergo heat transfer and reduction in temperature due to thermal exchange with the first side of the evaporator. The apparatus further includes a second chamber distributed along second side surface area between a second side of the casing and a second side of the evaporator configured to receive refrigerant from the first chamber. The second chamber acts as a second heat exchange allowing the refrigerant received from the first chamber to undergo heat transfer and reduction in temperature due to thermal exchange with the second side of the evaporator. The evaporator further includes a third chamber distributed along a third surface area opposite the second chamber between a third side of the casing and a third side of the evaporator configured to receive refrigerant from the first chamber. The third chamber acts as a third heat exchange allowing the refrigerant received from the first chamber to undergo a heat transfer and reduction in temperature due to thermal exchange with the third side of the evaporator. The apparatus further includes a first outlet means to allow the refrigerant to exit the casing. The apparatus further includes a second inlet means configured to allow the refrigerant to enter the evaporator after exiting the casing and distribute the refrigerant within the evaporator. The apparatus further includes a second outlet means allows the refrigerant to exit the evaporator and cycle through a refrigeration system. 
     Neither this summary nor the following detailed description purports to define the invention. The invention is defined by the claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Embodiments of various inventive features will now be described with reference to the following drawings. Throughout the drawings, reference numbers may be re-used to indicate correspondence between referenced elements. The drawings are provided to illustrate example embodiments described herein and are not intended to limit the scope of disclosure. 
         FIG. 1  illustrates a side-view of the evaporator with heat exchange in accordance with one embodiment. 
         FIG. 2  illustrates a mid-view of the evaporator with heat exchange in accordance with one embodiment. 
         FIG. 3  illustrates a side-view of the evaporator with space reducer and heat exchange in accordance with one embodiment. 
         FIG. 4A  illustrates a mid-view of the evaporator with space reducer and heat exchange in accordance with one embodiment. 
         FIG. 4B  illustrates a mid-view of the evaporator with space reducer and heat exchange in accordance with one embodiment. 
         FIG. 5  illustrates a side-view of the evaporator with space reducer in accordance with one embodiment. 
         FIG. 6  illustrates a mid-view of the evaporator with space reducer in accordance with one embodiment. 
         FIG. 7  illustrates a side-view of the evaporator with dual pipe heat exchange in accordance with one embodiment. 
         FIG. 8  illustrates a side-view of the evaporator with space reducer and dual pipe heat exchange in accordance with one embodiment. 
         FIG. 9  illustrates a block diagram of the dual pipe heat exchange apparatus in accordance with one embodiment. 
         FIG. 10  illustrates a mid-view prospective of the dual pipe heat exchange apparatus in accordance with one embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Specific embodiments will now be described with reference to the drawings. These embodiments are intended to illustrate and, not limit, the present invention. 
       FIG. 1  is an exemplary embodiment of a side-view of the evaporator with heat exchange apparatus. In the illustrated embodiment, the evaporator with heat exchange system  100  is comprised of a plurality of components, including an evaporator  109  and an external casing  107  coving the evaporator from all sides. In one embodiment, the material makeup of the exterior sides of an evaporator  109  may be steel, stainless steel or other metallic (conductive) materials. In one embodiment, the material makeup of the exterior sides of a external casing  107  may be steel, stainless steel, aluminum or other metal compounds. In one embodiment, the evaporator with heat exchange system  100  receives hot refrigerant  101 , (i.e. Freon or ammonia), by means of the liquid line  102  whereby the hot refrigerant  101  is directed into a side chamber  104  between the outer perimeter of the side of evaporator  108  and along the inner perimeter of the side of casing  106 . When the hot refrigerant  101  is traveling vertically through the side chamber  104  it is simultaneously traveling through the side heat exchange  105  within the evaporator with heat exchange system  100 . Wherein the side chamber  104  undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to thermal exchange with the side portion of the evaporator  108  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels to a top chamber  110  configured between the outer top side of the evaporator  114  and the inner top side of the casing  112 . When the refrigerant  101  travels through the top chamber  110  it is simultaneously traveling through the top heat exchange  111  within the evaporator with heat exchange system  100 . The top chamber  110  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to thermal exchange with the top side of the evaporator  114  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels through the hollow center chamber  118  configured between the exterior center wall of evaporator  115  and interior center cavity of the casing  117 . When the refrigerant  101  travels through the center chamber  118  it is simultaneously traveling through the center heat exchange  119  within the evaporator with heat exchange system  100 . Wherein the center chamber  118  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with exterior center wall of the evaporator  115  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels through the bottom chamber  120  configured between the exterior bottom side of the evaporator  124  and interior bottom side of the casing  122 . When the refrigerant  101  travels through the bottom chamber  120  it is simultaneously traveling through the bottom heat exchange  121  within the evaporator with heat exchange system  100 . The bottom chamber  120  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with the bottom side of the evaporator  124  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  exits the bottom chamber  120  by an outlet means  126  and travels towards the liquid feed solenoid valve  128  which controls the refrigerant  101  feed into the evaporator and allows the evaporator  109  to freeze in order to produce freeze/ice within the evaporator  109 . The refrigerant  101  then bypasses the gas adjustable valve  130  (also known as “expansion valve”) where the refrigerant is pressurized and forced into the chamber room of the evaporator through a opening and enters the evaporator by an inlet means  132  wherein the refrigerant  101  will be substantially changed in form to a cold refrigerant  103  within the evaporator  109  due to colder temperatures within the evaporator  109 . The cold refrigerant  103  within the evaporator  109  will travel vertically up in between a plurality of parallel tubes  140  longitudinally disposed within the evaporator  109  configured to maintain liquid for freezing into solid and will continue to circulate within the evaporator  109  until the refrigerant exits the evaporator  109  by means of an suction line  134  which permits the refrigerant to leave the evaporator  109  and casing  107  and be transmitted towards the compressor (not shown) where it is pressurized and cycles through the refrigeration system. The evaporator with heat exchange system  100  may be connected to or comprise a hot gas solenoid valve  136 . In one embodiment, the hot gas solenoid valve  136  acts as a defrost mechanism to release ice whereby the hot gas warms the evaporator  107  permitting ice to be released and harvested. The evaporator with heat exchange system  100  may be connected to or comprise a liquid inlet  138  configured above the evaporator with heat exchange system  100  to permit liquid to be inserted into the tubes  140  within the evaporator  109 . 
     Alternative embodiments are also disclosed whereby the refrigerant enters the evaporator with heat exchange system  100  at the top and travels in the opposite directions as depicted and described in  FIG. 1 . 
       FIG. 2  is an exemplary embodiment of a mid-view of the evaporator with heat exchange system  100 . The inner most portion comprises the center chamber  118  whereby the refrigerant  101  travels downward (optionally, upward) while circulating in between the casing  107  and the evaporator  109  as described in  FIG. 1 . The exterior of the evaporator  109  is surrounded by a side chamber  104  comprised of a cavity between the side of the casing  106  and the side of the evaporator  108 . The evaporator&#39;s inside is comprised of a plurality of tubes  140  aligned vertically containing liquid through  144  and surrounded by liquid freezing area  142  where cold refrigerant  103  travels. In one embodiment, the tubes  140  may be made of stainless steel (or other metal) and contain liquid and are between 6 inches and twenty-five feet tall or taller. 
       FIG. 3  is an exemplary embodiment of a side-view of the evaporator with integrated space reducers and heat exchange apparatus. In the illustrated embodiment, the evaporator with integrated space reducers and heat exchange system  300  is comprised of a plurality of components, including an evaporator  109  and an external casing  107  coving the evaporator from all sides. In one embodiment, the material makeup of the exterior sides of an evaporator may be steel, stainless steel or other metallic (conductive) materials. In one embodiment, the evaporator with integrated space reducers and heat exchange system  300  receives hot refrigerant  101 , (i.e. Freon or ammonia), by means of the liquid line  102  whereby the hot refrigerant  101  is directed into a side chamber  104  between the outer perimeter of the side of evaporator  108  and along the inner perimeter of the side of casing  106 . When the refrigerant  101  is traveling vertically through the side chamber  104  it is simultaneously traveling through the side heat exchange  105  within the evaporator with integrated space reducers and heat exchange system  300 . Wherein the side chamber  104  undergoing a heat exchange allowing the hot refrigerant to undergo a heat transfer and reduction in temperature due to thermal exchange with the side portion of the evaporator  108  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels through the bottom chamber  120  configured between the exterior bottom side of the evaporator  124  and interior bottom side of the casing  122 . When the refrigerant  101  travels through the bottom chamber  120  it is simultaneously traveling through the bottom heat exchange  121  within the evaporator with integrated space reducers and heat exchange system  300 . Wherein the bottom chamber  120  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with the bottom side of the evaporator  124  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  exits the bottom chamber  120  by an outlet means  126  and travels towards the liquid feed solenoid valve  128  which controls the refrigerant  101  feed into the evaporator and allows the evaporator  109  to freeze in order to produce freeze/ice within the evaporator  109 . The refrigerant  101  then bypasses the gas adjustable valve  130  (also known as “expansion valve”) where the refrigerant is pressurized and forced into the chamber room of the evaporator through a opening and enters the evaporator by an inlet means  132  wherein the refrigerant  101  will be substantially changed in form to a cold refrigerant  103  within the evaporator  109  due to colder temperatures within the evaporator  109 . The cold refrigerant  103  within the evaporator  109  will travel vertically up in between a plurality of parallel tubes  140  longitudinally disposed within the evaporator  109  configured to maintain liquid for freezing into solid. The inside of the evaporator  109  will comprise a plurality of perimeter space reducers  310  and may contain at least one center space reducer  320 . In one embodiment, the perimeter space reducers  310  and/or the center space reducer  320  may be permanently adhered into position within the evaporator. Perimeter space reducers  310  and central space reducers  320  reduce the cubic space within the evaporator in order to increase the cooling efficiency of the evaporator. When the evaporator is smaller, in cubic size, the refrigerant is able cool the water much quicker resulting in faster ice production as compared to an evaporator of larger size with un-used (open and spacious) portions. The center space reducer  320  may be comprised of a variety of materials such as steel or other metallic compounds, plastic, or glass. The cold refrigerant  103  will continue to circulate within the evaporator  109  until the refrigerant exits the evaporator  109  by means of a suction line  134  which permits the refrigerant to leave the evaporator  109  and casing  107  and be transmitted towards the compressor (not shown) where it is pressurized and cycles through the refrigeration system. The evaporator with integrated space reducers and heat exchange system  300  may be connected to or comprise a hot gas solenoid valve  136 . In one embodiment, the hot gas solenoid valve  136  acts as a defrost mechanism to release ice whereby the hot gas warms the evaporator  107  permitting ice to be released and harvested. The evaporator with integrated space reducers and heat exchange system  300  may be connected to or comprise a liquid inlet  138  configured above the evaporator with integrated space reducers and heat exchange system  300  to permit liquid to be inserted into the tubes  140  within the evaporator  109 . 
     In an alternative embodiment of  FIG. 3 . the evaporator with integrated space reducers and heat exchange  300  comprises utilizing all three side chambers as well as a center chamber to facilitate heat transfer between the refrigerant  101  within the casing and the evaporator  109 . In one embodiment, the evaporator with integrated space reducers and heat exchange system  300  receives hot refrigerant  101 , (i.e. Freon or ammonia), by means of the liquid line  102  whereby the hot refrigerant  101  is directed into a side chamber  104  between the outer perimeter of the side of evaporator  108  and along the inner perimeter of the side of casing  106 . When the refrigerant  101  is traveling vertically through the side chamber  104  it is simultaneously traveling through the side heat exchange  105  within the evaporator with integrated space reducers and heat exchange system  300 . Wherein the side chamber  104  undergoing a heat exchange allowing the hot refrigerant to undergo a heat transfer and reduction in temperature due to thermal exchange with the side portion of the evaporator  108  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels to a top chamber  110  configured between the outer top side of the evaporator  114  and the inner top side of the casing  112 . When the refrigerant  101  travels through the top chamber  110  it is simultaneously traveling through the top heat exchange  111  within the evaporator with integrated space reducers with heat exchange system  300 . Wherein the top chamber  110  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to thermal exchange with the top side of the evaporator  114  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels through a center chamber  118  configured through the center of a center space reducer  320  (shown in  FIG. 4B ) wherein the center space reducer is located between the exterior center wall of evaporator  115  and interior center cavity of the casing  117 . In one embodiment, the center space reducer  320  may be comprised of a solid tube with a hollow center portion. In an alternative embodiment, the center space reducer  320  may be comprised of a hollow cylindrical tube with a hollow center portion. When the refrigerant  101  travels through the center chamber  118  it is simultaneously traveling through the center heat exchange  119  within the evaporator with integrated space reducers and heat exchange system  300 . Wherein the center chamber  118  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with exterior center wall of the evaporator  115  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels through the bottom chamber  120  configured between the exterior bottom side of the evaporator  124  and interior bottom side of the casing  122 . When the refrigerant  101  travels through the bottom chamber  120  it is simultaneously traveling through the bottom heat exchange  121  within the evaporator with integrated space reducers and heat exchange system  300 . Wherein the bottom chamber  120  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with the bottom side of the evaporator  124  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  exits the bottom chamber  120  by an outlet means  126  and travels towards the liquid feed solenoid valve  128  which controls the refrigerant  101  feed into the evaporator and allows the evaporator  109  to freeze in order to produce freeze/ice within the evaporator  109 . The refrigerant  101  then bypasses the gas adjustable valve  130  (also known as “expansion valve”) where the refrigerant is pressurized and forced into the chamber room of the evaporator through a opening and enters the evaporator by an inlet means  132  wherein the refrigerant  101  will be substantially changed in form to a cold refrigerant  103  within the evaporator  109  due to colder temperatures within the evaporator  109 . The cold refrigerant  103  within the evaporator  109  will travel vertically up in between a plurality of parallel tubes  140  longitudinally disposed within the evaporator  109  configured to maintain liquid for freezing into solid. The inside of the evaporator  109  will comprise a plurality of perimeter space reducers  310  and may contain at least one center space reducer  320 . Perimeter space reducers  310  and central space reducers  320  reduce the cubic space within the evaporator in order to increase the cooling efficiency of the evaporator. When the evaporator is smaller, in cubic size, the refrigerant is able cool the water much quicker resulting in faster ice production as compared to an evaporator of larger size with un-used (open and spacious) portions. The center space reducer  320  may be comprised of a variety of materials such as steel or other metallic compounds, plastic, or glass. 
     The refrigerant will continue to circulate within the evaporator  109  until the refrigerant exits the evaporator  109  by means of a suction line  134  which permits the refrigerant to leave the evaporator  109  and casing  107  and be transmitted towards the compressor (not shown) where it is pressurized and cycles through the refrigeration system. The evaporator with integrated space reducers with heat exchange system  300  may be connected to or comprise a hot gas solenoid valve  136 . In one embodiment, the hot gas solenoid valve  136  acts as a defrost mechanism to release ice whereby the hot gas warms the evaporator  107  permitting ice to be released and harvested. The evaporator with integrated space reducers and heat exchange system  300  may be connected to or comprise a liquid inlet  138  configured above the evaporator with integrated space reducers and heat exchange system  300  to permit liquid to be inserted into the tubes  140  within the evaporator  109 . 
     Alternative embodiments are also disclosed whereby the refrigerant enters the evaporator with integrated space reducers and heat exchange system  300  at the top and travels in the opposite directions as depicted and described in  FIG. 3 . 
       FIG. 4A  is an exemplary embodiment of a mid-view of the evaporator integrated space reducers with heat exchange system  300 . The inner most portion comprises the center space reducer  320  as a means to reduce the cubic space within the evaporator in order to increase the cooling efficiency of the evaporator. When the evaporator is smaller, in cubic size, the refrigerant is able cool the water much quicker resulting in faster ice production as compared to an evaporator of larger size with un-used (open and spacious) portions. The center space reducer  320  may be of custom shape and may be comprised of a variety of materials such as steel or other metallic compounds, plastic, or glass. In one embodiment, the center space reducer  320  is comprised of stainless steel surrounding a rounded evaporator, as shown in  FIG. 3 ,  FIG. 4A , and  FIG. 4B . The perimeter space reducer  310  may be comprised of a variety of materials such as steel or other metallic compounds, plastic, or glass. In one embodiment, the perimeter space reducer  310  may be made of a custom shape comprised of metallic material which does not interact with the refrigerant. The exterior of the evaporator  109  is surrounded by a side chamber  104  comprised of a cavity between the side of the casing  106  and the side of the evaporator  108 . The evaporator&#39;s inside is comprised of a plurality of tubes  140  aligned vertically containing liquid through  144  and surrounded by liquid freezing area  142  where cold refrigerant  103  travels. In one embodiment, the tubes  140  may be made of stainless steel (or other metal) and contain liquid and are between 6 inches and twenty-five feet tall or taller. Along the interior perimeter of the evaporator  109  are a plurality of perimeter space reducers  310  used as a means to reduce the cubic space within the evaporator in order to increase the cooling efficiency of the evaporator. When the evaporator is smaller, in cubic size, the refrigerant is able cool the water much quicker resulting in faster ice production as compared to an evaporator of larger size with un-used (open and spacious) portions. The perimeter space reducer  310  may be comprised of a variety of materials such as steel or other metallic compounds, plastic, or glass. In one embodiment, the perimeter space reducer  310  may be made of a custom shape comprised of metallic material which does not interact with the refrigerant, as shown in  FIG. 3 ,  FIG. 4A , and  FIG. 4B . 
       FIG. 4B  is an exemplary embodiment of a mid-view of the evaporator with integrated space reducers and heat exchange system  300 . The inner most portion comprises the center space reducer  320  as a means to reduce the cubic space within the evaporator in order to increase the cooling efficiency of the evaporator. When the evaporator is smaller, in cubic size, the refrigerant is able cool the water much quicker resulting in faster ice production as compared to an evaporator of larger size with un-used (open and spacious) portions. The center space reducer  320  may have a hollow center cavity within the space reducer  322  to allow refrigerant  101  within the casing to travel to another chamber around the exterior of the evaporator  109 . The center space reducer  320  may be of a custom shape and may comprise variety of materials such as steel or other metallic compounds, plastic, or glass. In one embodiment, the center space reducer  320  is comprised of stainless steel surrounding a rounded evaporator, as shown in  FIG. 3 ,  FIG. 4A , and  FIG. 4B . The perimeter space reducer  310  may be comprised of a variety of materials such as steel or other metallic compounds, plastic, or glass. In one embodiment, the perimeter space reducer  310  may be made of a custom shape comprised of metallic material which does not interact with the refrigerant. The exterior of the evaporator  109  is surrounded by a side chamber  104  comprised of a cavity between the side of the casing  106  and the side of the evaporator  108 . The evaporator&#39;s inside is comprised of a plurality of tubes  140  aligned vertically containing liquid through  144  and surrounded by liquid freezing area  142  where cold refrigerant  103  travels. In one embodiment, the tubes  140  may be made of stainless steel (or other metal) and contain liquid and are between 6 inches and twenty-five feet tall or taller. Along the interior perimeter of the evaporator  109  are a plurality of perimeter space reducers  310  used as a means to reduce the cubic space within the evaporator in order to increase the cooling efficiency of the evaporator. When the evaporator is smaller, in cubic size, the refrigerant is able cool the water much quicker resulting in faster ice production as compared to an evaporator of larger size with un-used (open and spacious) portions. The perimeter space reducer  310  may be comprised of a variety of materials such as steel or other metallic compounds, plastic, or glass. In one embodiment, the perimeter space reducer  310  may be made of a custom shape comprised of metallic material which does not interact with the refrigerant, as shown in  FIG. 3 ,  FIG. 4A , and  FIG. 4B . 
       FIG. 5  is an exemplary embodiment of a side-view of the evaporator with space reducer apparatus. In one embodiment, the material makeup of the exterior sides of an evaporator may be steel, stainless steel or other metallic (conductive) materials. In one embodiment, the evaporator with space reducer system  500  receives refrigerant  101 , (i.e. Freon or ammonia), by means of the liquid line  110  whereby the refrigerant travels through a bottom chamber  120  between the exterior bottom side of the evaporator  124  and the interior bottom side of casing  122 , as shown in  FIG. 5 , but may be along the top side of the evaporator depending on the design of the evaporator. The refrigerant exits the bottom chamber  120  by means of an outlet  126  along the bottom of the evaporator and travels to the liquid feed solenoid valve  128  then through the gas adjustable valve  130  (also known as “expansion valve”) where the refrigerant is pressurized and forced into the chamber room of the evaporator through a opening. When the refrigerant  101  enters the evaporator  109  by means of an inlet  132  it changes into a cold refrigerant  103  which enters the chamber room in the evaporator comprising a plurality of perimeter space reducers configured along the inner perimeter of the evaporator and an optional center space reducer, along with plurality of tubes where liquid is stored for freezing will begin to cool as a result of the cold refrigerant and begins to freeze the contents of the steel tubes. After a configurable set of time, when the cold refrigerant will exit the chamber room of the evaporator by means of the outlet means  134 . Moreover, the evaporator with space reducer system  500  may be connected to or comprise a water inlet  138  configured above the evaporator with space reducer system  500 . Alternative embodiments are also disclosed whereby the refrigerant enters the evaporator with space reducer system  500  at the top or middle portions of the evaporator depending on where the liquid line  110  and gas adjustable valve  160  are configured. 
       FIG. 6  is an exemplary embodiment of a mid-view of the evaporator with space reducer. The center portion of the evaporator with space reducer  500  is comprised of a plurality of tubes  140  aligned vertically containing water through  144  and surrounded by liquid freezing area  142  where the refrigerant  103  is maintained within the evaporator. In one embodiment, the tubes  140  contain water and are between 6 inches and twenty-five feet tall or taller. Along the side of the evaporator  108  and around the interior perimeter of the evaporator with space reducer system  500  are a plurality of perimeter space reducer  310 . In another embodiment, the perimeter space reducers  310  are comprised of steel (to be more conductive and allow cool to spread) surrounding a square, rectangular, or cylindrical shaped evaporator that permits refrigerant to travel around its perimeter in order to freeze water into ice. In another embodiment, the hollow center exterior portion of the evaporator may be fitted with a center space reducer  320 . The space reducers act as a means to reduce the cubic space within the evaporator in order to increase the cooling efficiency of the evaporator. When the evaporator is smaller, in cubic size, the refrigerant is able cool the water much quicker resulting in faster ice production as compared to an evaporator of larger size with un-used (open and spacious) portions. The space reducers may be comprised of a variety of materials such as steel or other metallic compounds, plastic, or glass. 
       FIG. 7  is an exemplary embodiment of a side-view of the evaporator with dual-pipe heat exchange apparatus. In the illustrated embodiment, the evaporator with dual-pipe heat exchange system  700  is comprised of a plurality of components, including an evaporator  109 , a dual pipe tube  156 , and an external casing  107  coving the evaporator from all sides. In one embodiment, dual pipe tube  156  is configured to transport hot refrigerant  101  through the outer pipe  157  through a liquid line  102  into a side chamber  104 . In addition, the dual pipe tube  156  is configured to transport cold refrigerant  103  through the inner tube  159  from the suction line  134  into the compressor (not shown) to cycle through a refrigeration system (not shown). While the hot refrigerant  101  and the cold refrigerant  103  are simultaneously passing in opposite direction within the dual pipe tube  156 , the outer pipe  157  may be acting as a heat exchange allowing the hot refrigerant  101  received from the refrigeration system (not shown) intended for the side chamber  104  to undergo heat transfer and reduction in temperature due to thermal exchange with the inner pipe  159  as the hot refrigerant  101  passes through the dual pipe  156 . In one embodiment, the material makeup of the exterior sides of an evaporator may be steel, stainless steel or other metallic (conductive) materials. In one embodiment, the evaporator with dual pipe heat exchange system  700  receives hot refrigerant  101 , (i.e. Freon or ammonia), by means of the liquid line  102  whereby the hot refrigerant  101  is directed into a side chamber  104  between the outer perimeter of the side of evaporator  108  and along the inner perimeter of the side of casing  106 . When the hot refrigerant  101  is traveling vertically downward through the side chamber  104  it is simultaneously traveling through the side heat exchange  105  within the evaporator with dual-pipe heat exchange system  700 . Wherein the side chamber  104  undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to thermal exchange with the side portion of the evaporator  108  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels to a bottom chamber  120  configured between the outer bottom side of the evaporator  124  and the inner bottom side of the casing  122 . When the refrigerant  101  travels through the bottom chamber  120  it is simultaneously traveling through the bottom heat exchange  121  within the evaporator with dual-pipe heat exchange system  700 . Wherein the bottom chamber  120  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to thermal exchange with the bottom side of the evaporator  124  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels through the hollow center chamber  118  configured between the exterior center wall of evaporator  115  and interior center cavity of the casing  117 . When the refrigerant  101  travels through the center chamber  118  it is simultaneously traveling through the center heat exchange  119  within the evaporator with dual-pipe heat exchange system  700 . Wherein the center chamber  118  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with exterior center wall of the evaporator  115  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels through the top chamber  110  configured between the exterior top side of the evaporator  114  and interior top side of the casing  112 . When the refrigerant  101  travels through the top chamber  110  it is simultaneously traveling through the top heat exchange  111  within the evaporator with dual-pipe heat exchange system  700 . Wherein the top chamber  110  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with the top side of the evaporator  114  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  exits the top chamber  110  by an outlet means  126  and travels towards the liquid feed solenoid valve  128  which controls the refrigerant  101  feed into the evaporator and allows the evaporator  109  to freeze in order to produce freeze/ice within the evaporator  109 . The refrigerant  101  then bypasses the gas adjustable valve  130  (also known as “expansion valve”) where the refrigerant is pressurized and forced into the chamber room of the evaporator through a opening and enters the evaporator by an inlet means  132  wherein the refrigerant  101  will be substantially changed in form to a cold refrigerant  103  within the evaporator  109  due to change in pressure and colder temperatures within the evaporator  109 . The cold refrigerant  103  within the evaporator  109  will travel in between a plurality of parallel tubes  140  longitudinally disposed within the evaporator  109  configured to maintain liquid for freezing into solid and will continue to circulate within the evaporator  109  until the refrigerant exits the evaporator  109  by means of an suction line  134  which permits the refrigerant  103  to leave the evaporator  109  and casing  107  and be transmitted towards the compressor (not shown) where it is pressurized and cycles through the refrigeration system. The evaporator with dual-pipe heat exchange system  700  may be connected to or comprise a liquid inlet (not shown) configured above the evaporator  109  to permit liquid to be inserted into the tubes  140  within the evaporator  109 . 
     Alternative embodiments are also disclosed whereby the refrigerant enters the evaporator with dual-pipe heat exchange system  700  at the bottom and travels in the opposite directions as depicted and described in  FIG. 7 . 
       FIG. 8  is an exemplary embodiment of a side-view of the evaporator with space reducers and dual-pipe heat exchange apparatus. In the illustrated embodiment, the evaporator with space reducers and dual-pipe heat exchange system  800  is comprised of a plurality of components, including an evaporator  109 , a dual pipe tube  156 , and an external casing  107  coving the evaporator from all sides. In one embodiment, dual pipe tube  156  is configured to transport hot refrigerant  101  through the outer pipe  157  through a liquid line  102  into a side chamber  104  between the outer perimeter of the side of evaporator  108  and along the inner perimeter of the side of casing  106 . When the refrigerant  101  is traveling vertically downward through the side chamber  104  it is simultaneously traveling through the side heat exchange  105  within the evaporator with integrated space reducers and dual-pipe heat exchange system  800 . The side chamber  104  may undergoing a heat exchange allowing the hot refrigerant to undergo a heat transfer and reduction in temperature due to thermal exchange with the side portion of the evaporator  108  which contains cold refrigerant. In one embodiment, the material makeup of the exterior sides of an evaporator may be steel, stainless steel or other metallic (conductive) materials. 
     Thereafter, the refrigerant  101  travels to a bottom chamber  120  configured between the outer bottom side of the evaporator  124  and the inner bottom side of the casing  122 . When the refrigerant  101  travels through the bottom chamber  120  it is simultaneously traveling through the bottom heat exchange  121  within the evaporator with integrated space reducers with dual-pipe heat exchange system  800 . Wherein the bottom chamber  120  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to thermal exchange with the bottom side of the evaporator  124  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  travels through a center chamber  118  configured through the center of a center space reducer  320  (shown in  FIG. 4B ) wherein the center space reducer is located between the exterior center wall of evaporator  115  and interior center cavity of the casing  117 . In one embodiment, the center space reducer  320  may be comprised of a solid tube with a hollow center portion. In an alternative embodiment, the center space reducer  320  may be comprised of a hollow cylindrical tube with a hollow center portion. When the refrigerant  101  travels through the center chamber  118  it is simultaneously traveling through the center heat exchange  119  within the evaporator with integrated space reducers and dual-pipe heat exchange system  800 . Wherein the center chamber  118  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with exterior center wall of the evaporator  115  which contains cold refrigerant. In one embodiment, the center space reducer  320  is solid and does not permit refrigerant to travel through the center cavity  117 . 
     Thereafter, the refrigerant  101  travels through the top chamber  110  configured between the exterior top side of the evaporator  114  and interior top side of the casing  112 . When the refrigerant  101  travels through the top chamber  110  it is simultaneously traveling through the top heat exchange  111  within the evaporator with integrated space reducers and dual-pipe heat exchange system  800 . Wherein the top chamber  110  is undergoing a heat exchange allowing the hot refrigerant  101  to undergo a heat transfer and reduction in temperature due to the thermal exchange with the bottom side of the evaporator  114  which contains cold refrigerant. 
     Thereafter, the refrigerant  101  exits the casing  107  by an outlet means  126  and travels towards the liquid feed solenoid valve  128  which controls the refrigerant  101  feed into the evaporator and allows the evaporator  109  to freeze in order to produce freeze/ice within the evaporator  109 . The refrigerant  101  then bypasses the gas adjustable valve  130  (also known as “expansion valve”) where the refrigerant is pressurized and forced into the chamber room of the evaporator through a opening and enters the evaporator by an inlet means  132  wherein the refrigerant  101  will be substantially changed in form to a cold refrigerant  103  within the evaporator  109  due to change in pressure and colder temperatures within the evaporator  109 . The cold refrigerant  103  within the evaporator  109  will travel vertically up in between a plurality of parallel tubes  140  longitudinally disposed within the evaporator  109  configured to maintain liquid for freezing into solid. The inside of the evaporator  109  will comprise a plurality of perimeter space reducers  310  and a center space reducer  320 . The cold refrigerant  103  will continue to circulate within the evaporator  109  until the cold refrigerant  103  exits the evaporator  109  by means of an suction line  134  which permits the refrigerant to leave the evaporator  109  and casing  107  and be transmitted towards the compressor (not shown) where it is pressurized and cycles through the refrigeration system. The dual pipe tube  156  is configured to transport cold refrigerant  103  through the inner tube  159  from the suction line  134  into the compressor (not shown) to cycle through a refrigeration system (not shown). While the hot refrigerant  101  and the cold refrigerant  103  are simultaneously passing in opposite direction within the dual pipe tube  156 , the outer pipe  157  may be acting as a heat exchange allowing the hot refrigerant  101  received from the refrigeration system (not shown) intended for the side chamber  104  to undergo heat transfer and reduction in temperature due to thermal exchange with the inner pipe  159  as the hot refrigerant  101  passes through the dual pipe  156 . 
     Alternative embodiments are also disclosed whereby the refrigerant enters the evaporator with integrated space reducers and dual-pipe heat exchange system  800  at the bottom and travels in the opposite directions as depicted and described in  FIG. 8 . 
       FIG. 9  is an illustrative block diagram of dual pipe heat exchange apparatus. In one embodiment, the refrigeration system  408  provides hot refrigerant  101  into the outer pipe  157  of a dual pipe  156  directed towards the evaporator  109 . In another embodiment, the evaporator  109  provides cold refrigerant  103  into the inner pipe  159  of a dual pipe  156  directed towards the refrigeration system  408 . 
       FIG. 10  is an illustrative mid-view prospective of a dual pipe heat exchange apparatus. In one embodiment, the dual pipe  156  is comprised of an outer pipe  157  and an inner pipe. The outer pipe is comprised of a chamber between the exterior of the inner pipe  159  and the interior of the outer pipe  157 . The inner pipe is comprised of a chamber comprised wholly of the inner pipe  159  cavity. The outer pipe is comprised of hot refrigerant  101  directed towards the evaporator. The inner pipe is comprised of cold refrigerant  103  directed away from the evaporator. 
     As will be apparent, the features and attributes of the specific embodiments disclosed above may be combined in different ways to form additional embodiments, all of which fall within the scope of the present disclosure. Although this invention has been described in terms of certain preferred embodiments and applications, other embodiments and applications that are apparent to those of ordinary skill in the art, including embodiments which do not provide all of the features and advantages set forth herein, are also within the scope of the invention. Accordingly, the scope of the present disclosure is intended to be defined only by the reference to the below claims.