Abstract:
Combination of a water cooled condenser, a cooling tower, a compressor and several controlling components to combine into one single unit of a compound condensing system makes it much more efficient in operation. Layer arrangement is constructed where reshuffled or rearrangement is possible to give similar outcome. This helps saving of electrical energy, prolonging the life of compressor, in addition to minimize global warming.

Description:
TECHNICAL FIELD AND INDUSTRIAL APPLICABILITY OF THE INVENTION 
       [0001]    This invention relates to a compound condensing unit having a cooling tower, a water-cooled condenser, a compressor, controlling components combined into one single unit where cooling medium using water is more efficient than air used conventionally. 
         [0002]    1. Field of the Invention 
         [0003]    Combined condensing unit for air-conditioning and/or cooling system 
         [0004]    2. Description of Related Art 
         [0005]    The present invention relates to a compound condensing system using combination of a water cooled condenser, a cooling tower, a compressor and many other controlling components to integrate into one single unit. This helps saving of electrical energy, prolonging the use of compressor, in addition to minimize global warming. 
       BACKGROUND OF THE INVENTION 
       [0006]    Cooling of a air-conditioning system using water is more efficient than the one using air for cooling. One important point is that water must be moved to a cooling tower to cool down. Therefore, it would be beneficial to combine a water-cooled condenser, a cooling tower, a compressor and other controlling components into one single unit to make it more convenient for operation. By increasing the number of water cooling pads to meet the requirement for cooling temperature of water to dew point or close to dew point will help saving the electrical energy, prolonging the life of compressor and minimizing global warming. Evaporation of water moves heat from air and water thus lowers the temperature of air or water vapor or water controllable to be lower than the ambient temperature. Water is cooled down by passing through a coil of condenser. Water vapor then moves higher to upper level brought with it the latent heat. When the mist becomes dense enough, it condenses into droplets and falls down as it gives out heat to air or gas at the upper level. 
       SUMMARY OF THE INVENTION 
       [0007]    Combination of a water cooled condenser, a cooling tower, a compressor and many other controlling components to integrate into one single unit of a compound condensing system makes it much more efficient in operation. Layer arrangement is constructed where reshuffled or rearrangement is possible to give similar outcome. This also helps saving of electrical energy, prolonging the life of compressor, in addition to minimize global warming. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0008]      FIG. 1  is a compound condensing unit showing all the components. 
           [0009]      FIG. 2  ( a ) is top view of a round tray with pores, ( b ) is a perspective view of round tray, ( c ) is conduit for flow of refrigerant and, ( d ) conduit is placed in the round tray; 
           [0010]      FIG. 3  shows components and their arrangement in the compound condensing unit. 
           [0011]      FIG. 4  shows combining of floor S 1  and S 2  of compound condensing unit of  FIG. 1  to one single floor S 1 . 2 . 
           [0012]      FIG. 5  is water reservoir showing side view and various isometric views. 
           [0013]      FIG. 6  shows overall diagrams  2  versions of compound condensing unit comparing the one having two floors S 1  and S 2  with the one with S  1 . 2 . 
           [0014]      FIG. 7  shows front view of compound condensing unit arranged horizontally. 
           [0015]      FIG. 8  shows back view of  FIG. 7 . 
           [0016]      FIG. 9  shows side view of  FIG. 7 . 
           [0017]      FIG. 10  shows top view of  FIG. 7 . 
           [0018]      FIG. 11  shows rearrangement by moving floor S 3  to position between floors S 5  and S 6 . 
           [0019]      FIG. 12  shows rearrangement by moving part F 2  to position between parts F 3  and F 4 . 
           [0020]      FIG. 13  shows rearrangement by removing sieved tray of floor S 3  and placing refrigerant conduit under water at bottom of floor S 1 . 
           [0021]      FIG. 14  shows rearrangement of components as of  FIG. 8  by removing sieved tray of floor F 2  and placing refrigerant conduit under water at bottom of floor F 1 . 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0022]    The presently disclosed compound condensing unit is invented by applying the operation principle and combining all the components having a cooling tower, a water-cooled condenser, a compressor, controlling components into one single unit as shown in  FIG. 1  in a cylindrical tower or a rectangular tower where the tower is divided into several floors having the components in each floor shown in  FIG. 1  and  FIG. 3 , as follows: 
         [0023]    Floor S 1 : having a compressor  1  and controlling components; 
         [0024]    Floor S 2 : is a cylindrical water reservoir  4 , at the bottom of the reservoir there is a water pump  2  to circulate water within the system for cooling, and a floating level switch  10  for controlling the water level in the reservoir by turning on and off the electric valve  1  to fill water in to the preset level; where water reservoir  4  can be designed differently as in  FIG. 5 . 
         [0025]    Floor S 3 : is the refrigerant conduit  5  functions as water-cooling condenser occupying the whole area of a round sieve  9  having pores at the bottom to allow flow of water through as shown in  FIGS. 2  ( a ), ( b ), ( c ) and ( d ); 
         [0026]    Floor S 4 : is an empty cylinder with enough height, having a lot of holes  8  all along its wall with air-filter along the wall to allow flow of air through; 
         [0027]    Floor S 5 : consists of cooling pads  7  filling the whole space to splash water on to increase surface area for evaporation of water; 
         [0028]    Floor S 6 : consists of a sprinkler  6  to sprinkle water throughout the cooling pad  7 ; 
         [0029]    Floor S 7 : consists of a fan  3  to draw air from floor S 4  to flow up against the direction of water droplets which drop down in floor  5  to cool down the water droplet and lower the water temperature to dew point where air is sucked out by the fan at the top of the tower of this compound condensing unit. 
         [0030]    The operation of the compound condensing unit is as follows: 
         [0031]    As shown in  FIG. 3 , valve V 1  is turned on to allow water to fill the water reservoir  4  where water level is controlled by level switch L 1  by controlling the turning on and off of valve V 1 . Once the air-conditioner is on, compressor  1 , water pump  2  and fan  3  are turned on simultaneously. Compressor  1  compresses refrigerant to flow into conduit  5  to cause increase in temperature of the refrigerant, while water pump  2  pumps water from reservoir  4  up to sprinkler  6  to sprinkle water to cover cooling pads  7  to drip downward against the direction of air flow upward by sucking action of fan  3  through holes  8  to expel out at the top of the tower. This decreases the temperature of water to dew point at that particular time point. Water droplets then drip down to cool the refrigerant conduit  5  where it turns into warm water and flows out through sieve  9  back to reservoir  4  to complete the cycle. Water pump  2  then pumps water up to sprinkler  3  to start the next cycle. 
         [0032]      FIG. 4  shows how floors S 1  and S 2  as of  FIG. 1  are combined to make floor S 1 . 2  to reduce the height of the tower. By designing the water reservoir having its lower part as half cylinder and its upper part is full cylinder about 2-3 inches in height to be able to receive all the water drips down as shown in  FIG. 5 . The lower half cylinder space is to install the compressor and all other controlling devices. The height of floor S 1 . 2  is shorter than the sum of floors S 1  and S 2 , thus helps decreasing the height of this compound condensing unit shown in  FIG. 6 . 
         [0033]    The feature and operation of the compound condensing unit of the present invention, using water at low-temperature (i.e. at dew point) to cool down the warm refrigerant is more efficient than air-cooling. Using the fin coil refrigerant conduit is thus not necessary. The ordinary copper coil with much shorter length can be used. This reduces the cost of manufacturing. In addition, the low temperature at the dew point of water is much lower than that of the ambient temperature of air thus allows decrease of pressure of refrigerant in the system. The compressor operates at lower load thus electrical consumption is reduced, this lengthens the life of compressor, in addition to maximizing the efficiency of the cooling system. 
         [0034]    The build of the compound condensing unit as rectangular box lies horizontally is shown in  FIGS. 7 ,  8 ,  9  and  10 .  FIG. 7  is front view of the unit installing a fan where to the left is a chamber installing a compressor and controlling components.  FIG. 8  is back view of the unit. All the components are arranged and operate as follows: 
         [0035]    Floor F 1  is a tray having cross-section area (width×length) sufficiently enough to receive all the water drips down from floor F 2  and is high enough to contain all the water needs to circulate in the system, where the left side end is extended to the anterior having the same width and height but just enough length to install the water pump, level switch and water inlet controlled by an electrical valve which is controlled by a level switch as in  FIG. 9  and  FIG. 10 . 
         [0036]    Floor F 2  consists of a refrigerant conduit functions as a water-cooled condenser placed in a sieve-bottom rectangular tray having area large enough to receive all the water drips down from floor F 3  and with enough height that water does not splash out, and that water can flow through the pores at the bottom of the sieve-tray. 
         [0037]    Floor F 3  consists of cooling pad filling the total area large enough to allow complete cooling of the warm water drips down from floor F 4  to reduce temperature of water to dew point before reaching floor F 2 . The cross-section of the compound condensing unit is thus equal to the cross-section area of the cooling pad. 
         [0038]    Floor F 4  consists of sprinkler installed to sprinkle water to cover the whole area of cooling pad. 
         [0039]      FIG. 9  is the left-side view of a compound condensing unit showing how air is sucked by fan to cool down water droplets where the extended area of tray to contain water of floor F 1  to install water pump, level switch and water inlet. This also shows how water is pumped by the water pump to sprinkler at Floor F 4 , the thickness (width) and the height of each floor and the positions the components are installed sidewise of the compound condensing unit. 
         [0040]    The top view of the unit is shown in  FIG. 10 , showing the length of the tray of floor F 1  with its extending part to installed water pump, level switch, water inlet and water valve and the layout of the components as a whole of the disclosed compound condensing unit. 
         [0041]    The principle of operation of the rectangular type horizontally arranged compound condensing unit is similar to that of the cylindrical type or rectangular type vertically arranged. 
         [0042]      FIG. 11  is the rearrangement of the components of compound condensing unit of  FIG. 1  or  FIG. 6  by moving floor S 3  to a position between floors S 5  and S 6 , operation is then switching from; first, cooling down the temperature of water then lower the temperature of refrigerant later; to first, cooling the refrigerant and later cool down water. Yet, the outcome is similar. 
         [0043]    Similarly, floor F 2  as in  FIG. 8  can be moved to a position between floor F 3  and F 4 , shown in  FIG. 12  resulting in similar outcome as described in  FIG. 11 . 
         [0044]    As shown in  FIG. 13 , components of  FIG. 1  are rearranged by deleting the sieve-tray of S 3  and move refrigerant conduit  5  to place under the water at the bottom of water reservoir of floor S 2 , where operation is the same as floors S 2  and S 3  are combined to be floor S 2 . 3 . 
         [0045]      FIG. 14  shows how floor F 2  is deleted and refrigerant conduit  5  is placed under the water at the bottom of water reservoir of floor F 1 , where operation is the same as floors F 1  and F 2  are combined to be floor F 1 . 2 . 
         [0046]    It is to be understood that the following claims are intended to cover all of the generic and specific features of the invention as described herein, and all statements of the scope of the invention which, as a matter of language.