Abstract:
A method and an equipment for improving global warming and air pollution are proposed, wherein hot exhaust gas generated by a thermal machine is injected into an exhaust boosting unit to be compressed and mixed with a liquid medium for atomization. Pollutants in the hot exhaust gas and heat generated due to combustion are adsorbed by the liquid medium. After the liquid medium passes a dust collecting unit, the pollutants adsorbed by the liquid medium will adhere to the dust collecting unit. Humid and hot clean air is extracted to the atmosphere, and rises to high altitudes and is cooled there. Water will drop to the ground in the form or rain or snow to cool the ground temperature and remove other pollutants in the air. Heat circulation and water circulation can be sped up to improve the situation of global warming and render more water resource to the Earth.

Description:
[0001]    The current application is a divisional application of, and claims a priority to the U.S. Ser. No. 11/738,466 filed on Apr. 8, 2007. 
         [0002]    The U.S. Ser. No. 11/738,466 claimed the following two foreign priorities:
       1. Taiwan, 96102248, filed on Feb. 8, 2007   2. Taiwan, 96110137, filed on Mar. 23, 2007       
 
     
    
     BACKGROUND OF THE INVENTION 
       [0005]    1. Field of the Invention 
         [0006]    The present invention relates to a method and an equipment for improving global warming and air pollution and, more particularly, to a method and an equipment for processing hot exhaust gas generated by various kinds of thermal machines. 
         [0007]    2. Description of Related Art 
         [0008]    In recent several decades, various forms of thermal machines (including internal combustion machines (e.g., engines), external combustion machines (e.g., boilers) and electric thermal machines or other thermal machines such as cars, cement plants, dryers, thermal processing equipments, and so on) have been extensively used by human to achieve revolutionary convenience of human life. However, this also results in detrimental consequences like global warming and air pollution. These thermal machines need to burn petroleum or coal to produce a large amount of heat for operation. The discharged exhaust gas contains suspended particulates like carbon particles and powders in addition to harmful chemical gases like CO, hydrocarbon, NO x , and sulfide. These particulates and chemical gases may be inhaled by people to become a major cause to endanger the human health. Moreover, at the same time when thermal machines discharge exhaust gas, a large amount of heat will also be released to the atmosphere. Equipments making use of electric energy to generate high temperatures for thermal processing also produce a large amount of heat and discharge pollutants into the atmosphere. 
         [0009]    In the world, there are innumerable thermal machines discharge pollutants and high-temperature gases day and night and year in and year out so that the nature cannot bear and tend to collapse. The temperature of the nature constantly keep within an appropriate range through the balance between condensation (heat release) and evaporation (heat absorption) of water. This balancing effect of temperature in which water on the ground absorbs heat to evaporate and rise to high altitudes and cools and condenses into snow or rain to drop to the ground is a natural law on the Earth for tens of millions of years. However, because lands have been covered by buildings and roads and forests have been cut down and destroyed by human due to population explosion, the nature can no longer conserve enough water for evaporation through heat absorption, hence weakening the balancing effect of temperature of the nature. Moreover, people utilize various kinds of thermal machines to generate a considerable amount of extra heat that did not originally exist in the nature and endangers humans, animals, plants, rivers and lakes on the Earth. The atmospheric temperature will rise, rivers and lakes will dry out, forest fires will more frequently happen, icebergs will melt, and the ecology of animals and plants will be damaged to cause extinction. Under this situation, the human can hardly survive alone. The prospects cause much anxiety. However, there are no appropriate methods yet that can improve this situation. 
         [0010]    At present, carbon dioxide (CO 2 ) is considered to be a major cause of causing the greenhouse effect of the Earth. Therefore, many countries have signed a pact to restrain the discharge of carbon dioxide in order to improve the situation that the atmospheric temperature of the Earth gradually rises. The restriction of carbon dioxide discharge, however, will affect industry growth and economic development. Therefore, the pact has weak effect, and is a passive approach. In consideration of gradual serious air pollution that affects the environment and human health, the applicant has proposed an exhaust pollution processing equipment in the disclosure of Taiwan Pat. No. 583,381 to reduce the negative influences car exhaust makes on the natural environment. The above disclosure, however, emphasizes the replenishment and saving of water that evaporates due to mixing with high-temperature exhaust gas, the method of repetitively filtering waste water formed by mixing water with engine exhaust containing carbon particles and powders, and the storage and processing structure and method after carbon particles are separated from water. No matter how water is saved, there is still some water used, which is unsatisfying under the universal situation of water scarcity in the world. Moreover, the engine power will be affected. Besides, during the circulative filtering process of waste water, oil in the exhaust gas will adhere to the filter core of the filter and the scraper to deteriorate the filtering effect. 
       SUMMARY OF THE INVENTION 
       [0011]    In consideration of the above drawbacks and problems of insufficient water content of the ground and gradual warming of the Earth, a primary object of the present invention is to provide a method and an equipment for improving global warming and air pollution, in which hot exhaust gas generated by a thermal machine is injected into an exhaust boosting unit to be compressed so that the hot exhaust gas can be mixed with a liquid medium for atomization and evaporation. Tiny pollution particulates and powders in the hot exhaust gas can thus be adsorbed and removed by the liquid medium to achieve the object of cleaning the air. Moreover, humid and hot clean air discharged to the atmosphere can speed up heat circulation and water circulation so as to improve the situation of gradual warming of the Earth. 
         [0012]    The present invention utilizes high-temperature exhaust gas and liquid like water as the medium to transfer heat of the ground and atmosphere to high altitudes so as to form a heat exchange mechanism. The situations of global warming, air pollution, river pollution, water resource scarcity, iceberg melting, and so on can thus be improved so that the Earth can regain vitality, and humans and all creatures can sustain. Besides, an ordinary exhaust unit is used to allow people to be able to control whether water is evaporated or not in order to guide the weather to develop toward the direction favorable to humans. The vicious circles of extra heat, pollution, water source scarcity, iceberg melting, and so on caused by humans can therefore be mitigated. 
         [0013]    Another object of the present invention is to provide a method and an equipment for improving global warming and air pollution, in which an air boosting unit is used to let exhaust gas of an engine generate enough airflow to fully mix with water for atomization and evaporation when passing the throat of a Venturi tube under the situation that the engine does not generate back pressure. Tiny carbon particles and powders in the exhaust gas can thus be adsorbed and removed by water to mitigate the problem of air pollution and global warming caused by engine exhaust. 
         [0014]    The present invention bases on the principle that water is evaporated when heated and condensed when cooled and the principle that water can wash off smoke. Heat in the hot exhaust gas will be absorbed by water to form vapor, which rises quickly to high altitudes to be cooled there. After sufficient conditions are met, water will drop to the ground in the form or rain or snow to properly cool the atmospheric environment. 
         [0015]    In addition to carbon particles and powders generated in the exhaust gas of a thermal machine and floating around in the air, the atmosphere also contains powders generated when the ground is run over by cars, powders generated when car tires wear, powders generated when clothes and shoes wear, and so on. These powders generated by innumerable objects float around in the air to pollute the air and are hardly to clean away. Moreover, the problem of water scarcity due to population explosion and the problem of pollution in rivers and lakes becomes more serious nowadays. The present invention can utilize water, waste water or seawater as supplemental water to mix with hot exhaust gas for atomization. Pollution particulates and powders in the hot exhaust gas can be adsorbed and collected in a dust collector. Humid and hot clean air rises to high altitudes The remaining humid and hot clean air is extracted to the atmosphere, and rises to high altitudes and is cooled there. After sufficient conditions are met, water will drop to the ground in the form or rain or snow to cool the ground temperature. In this process, all particulates floating around in the air will be cleaned away by rain or snow to get a clean atmospheric environment. This heat exchange mechanism not only can speed up heat circulation, but also can solve the problems of global warming and air pollution. Moreover, water circulation can also be accelerated to render more water resource to the Earth. Once the global warming is slowed down, energy consumed by air conditioners will drop drastically to save energy. When water resource increases, both the problem of pollution in rivers and lakes and the problem of water scarcity can be mitigated. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0016]    The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing, in which: 
           [0017]      FIG. 1  is a perspective assembly view of an equipment for improving global warming and air pollution according to a preferred embodiment of the present invention; 
           [0018]      FIG. 2  is a cross-sectional view of an equipment for improving global warming and air pollution according to the preferred embodiment of the present invention; 
           [0019]      FIG. 3  is a partly enlarged cross-sectional view of  FIG. 2 ; 
           [0020]      FIG. 4  is a partly enlarged view of  FIG. 2 , showing the actions of leading in water and stopping water of the lower water reservoir and its correlation with a boosting motor and a solenoid valve when there is no water; 
           [0021]      FIG. 5  is a partly enlarged cross-sectional view of  FIG. 2 , showing the structures of a Venturi tube and related components; 
           [0022]      FIG. 6  is a partly enlarged cross-sectional view of  FIG. 2 , showing the structure of a check valve and the action of an exhaust pipe when engine exhaust gas is compressed by the cylinder and enters the check valve to be boosted; 
           [0023]      FIG. 7  is a partly enlarged cross-sectional view of  FIG. 2 , showing the structures of a dust collecting unit and related components; and 
           [0024]      FIG. 8  is a side view of the equipment for improving global warming and air pollution that is installed on a car body according to a preferred embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0025]      FIGS. 1 and 8  show an equipment  100  for improving global warming and air pollution according to a preferred embodiment of the present invention. The equipment  100  comprises an exhaust injection unit  1 , an exhaust boosting unit  2 , a water storage unit  3 , a gas-liquid mixing unit  4 , a dust collecting unit  5 , and an ordinary exhaust unit  6 , and is disposed at an appropriate position of the body of a car  101 . In addition to processing pollutants like carbon particles and powders in the exhaust gas of an engine  102  of the car  101 , the equipment  100  can also make use of water to absorb heat in the exhaust gas of the engine  102 . It should be noted that the equipment  100  for improving global warming and air pollution can be properly adjusted and varied and the exhaust boosting unit  2  can utilize various air boosting equipments in order to apply to other movable or stationary exhaust sources that produce exhaust gas and waste heat. 
         [0026]    As shown in  FIGS. 1 ,  2  and  8 , the exhaust injection unit  1  has an exhaust pipe  10  connected to an engine silencer  103  of the car  101 . The exhaust pipe  10  is divided into two exhaust side pipes  13  and  14 . A solenoid valve  11  is disposed at an appropriate position of the exhaust side pipes  13  and  14 . 
         [0027]    As shown in  FIGS. 1 ,  2 ,  3  and  6 , the exhaust boosting unit  2  includes a compressor shell  20 , a motor  21 , a gear  22  driven by the motor  21 , a transmission gear  23 , a transmission gear shaft  24 , and a counterweight  25 . One side of the counterweight  25  is screw-fitted with a link disk  26 . When the engine  102  of the car  101  is started, the motor  21  is electrified to drive the gear  22 , the transmission gear  23 , the transmission gear shaft  24  and the counterweight  25  to rotate so that a piston  27  of each cylinder can move up and down along the cylinder. When the motor  21  is electrified, the solenoid valve  11  of the exhaust injection unit  1  is also electrified so that a core  12  (shown in  FIG. 2 ) is attracted upwards by a coil  16  to conduct a valve  18  and the exhaust side pipe  14 . Exhaust gas of the engine  102  enters the exhaust side pipe  14  from the exhaust pipe  10 , and then enters the exhaust boosting unit  2  via an exhaust intake  15 , and then passes through a cylinder air intake  28  to enter the cylinder. During the downward stroke of the piston  27  along the cylinder, smoke exhaust flows from a cylinder vent  232  through a check valve  230  and enters a boosted exhaust pipe  236 . As shown in  FIG. 6 , a spring  235  is provided in a spring groove  234 , and a pressure adjustment bolt  231  is used to adjust the elastic force. The front end of the spring  235  abuts against a pushing rod  233  of the check valve  230  to let the pushing rod  233  and the cylinder vent  232  be tightly fitted together, hence preventing compressed air discharged from the cylinder from flowing back. 
         [0028]    As shown in  FIGS. 1 ,  2 ,  4  and  8 , the water storage unit  3  comprises a water inlet  31 , a filter screen  32 , an aqueduct  33 , an upper water reservoir  34 , a lower water reservoir  35 , an inlet valve float ball  36 , a stopcock  37 , a float ball valve rod  38 , and a float ball valve rod supporting base  39 . Rain or water is injected via the water inlet  31  to be filter by the filter screen  32 , and passes the aqueduct  33  to enter the upper water reservoir  34  and the lower water reservoir  35 . When water in the lower water reservoir  35  increases, the float ball  36  rises until the water in the lower water reservoir  35  is full. At this time, the stopcock  37  on the float ball valve rod  38  will shut the opening of the aqueduct  33 . If water in the lower water reservoir  35  decreases, the float ball  36  drops, and the stopcock  37  moves away from the opening of the aqueduct  33  so that water in the upper water reservoir  34  can flow into the lower water reservoir  35  along the aqueduct  33  until the float ball  36  rises to let the stopcock  37  shut the opening of the aqueduct  33 . 
         [0029]    As shown in  FIGS. 1 ,  2  and  5 , the gas-liquid mixing unit  4  includes a Venturi tube installed at an appropriate position on the boosted exhaust pipe  236  and a water pipe  41  for connecting a bottom  42  of the lower water reservoir  35  and a throat  43  of the Venturi tube. Engine exhaust gas flows through the exhaust pipe  10 , the exhaust side pipe  14  and the exhaust intake  15  to enter the exhaust boosting unit  2 , and passes the cylinder air intake  28  to enter the cylinder to be compressed, and then passes the cylinder vent  232  to press open the pushing rod  233  of the check valve  230 , and finally enters the boosted exhaust pipe  236 . During the boosting process of exhaust gas, the engine  102  won&#39;t produce any back pressure. When exhaust gas passes the throat  43  of the Venturi tube, water is atomized to mix with smoke exhaust. Particulates in the smoke exhaust will be adsorbed by water to become larger, heavier and damper, and a large amount of heat generated due to combustion in the engine  102  will also be absorbed by water to form humid and hot gas, which enters the dust collecting unit  5 . 
         [0030]    As shown in  FIGS. 1 ,  2 ,  7  and  8 , the dust collecting unit  5  has a dust collecting room  50 , which is formed by screw-fitting two circular pipes  51  and  52 . A diversion plate  53  is provided inside the circular pipe  51 . An exhaust outlet  54  is provided at one side of the circular pipe  52 . After exhaust gas of the engine  102  passes the throat  43  of the Venturi tube, particulates in the smoke exhaust will be adsorbed by water to become polluted water and clean gas, which then enter the dust collecting room  50 . Because of the large inner space of the dust collecting room  50 , the speed of the clean gas will be lower, and the heavier polluted water will distribute on the walls of the dust collecting room  50  along the diversion of the diversion plate  53 . The humid and clean air is discharged to the atmosphere via the exhaust outlet  54 . Therefore, the humid and clean air can bring heat to high altitudes to be cooled there, and water contained therein will drop to the ground in the form of rain of snow, hence completing a heat exchange process. 
         [0031]    Although the above embodiment of the present invention utilizes used waste water as the medium for heat absorption and evaporation, in some conditions, seawater may be more convenient. However, after seawater is evaporated, salt will be left in the dust collecting room  50 . In this situation, the circular pipe  52  can be turned to separate from the circular pipe  51  for removing the salt and then installed back for successive use. 
         [0032]    In order to improve the current situation of global warming and air pollution, the equipment of the present invention should be installed in various kinds of man-made thermal machines. Cooperated with sufficient supply of water, a considerate amount of water or waste water is evaporated to make full use of natural conditions to improve the natural environment. However, some special situations may still happen (e.g., water in a running car or an operating machine is depleted and instant replenishment of water is not allowed; or in a cold winter or there is too much rain). In these situations, the weather condition obtained from weather prediction organizations should be comprehensively taken into consideration. When machines stop evaporating water, the replenishment of water is halted, and the smoke exhaust enters the ordinary exhaust unit  6 . As shown in  FIGS. 1 ,  2  and  4 , when water in the upper and lower water reservoirs  34  and  35  is depleted, the front end of the float ball valve rod  38  in the lower water reservoir  35  comes down, and the rear end thereof is raised to push a circuit contact  341  upwards to contact a circuit contact  340 . The circuit contact of the motor  21  of the exhaust boosting unit immediately jumps off to stop the operation of boosting exhaust. A circuit contact  120  of the solenoid valve  11  in the exhaust injection unit  1  simultaneously jumps off to cause loss of excitation of the coil  16 . The core  12  is thus pulled back by the spring  17  to conduct a valve  19  and the exhaust side pipe  13 . Therefore, exhaust gas of the engine  102  passes the exhaust pipe  10  to enter the exhaust side pipe  13 , and is finally discharged out from the tail end thereof. 
         [0033]    To sum up, the present invention utilizes water to absorb heat discharged by a thermal machine to form water vapor, which then rises to high altitudes to condense into water again and release heat when encountering cool water, and drops to the ground in the form of rain of snow, hence speeding up the heat circulation and also the water circulation. Moreover, the present invention can determine whether to evaporate water or not by filling or not filling water into the water storage unit so as to control a change mechanism of the weather. In this manner, people can gradually guide the ecological environment with serious problems such as global warming, dry-up of rivers and lakes, gradual melting of icebergs, forest fires, air pollution, and so on to development toward a positive and virtuous circle, and can control the weather to develop toward the direction favorable to humans. 
         [0034]    Although the present invention has been described with reference to the preferred embodiment thereof, it will be understood that the invention is not limited to the details thereof. Various substitutions and modifications have been suggested in the foregoing description, and other will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.