JP2012202648A - Additional condenser and its method for achieving power saving and higher performance of existent air conditioner and refrigerator-freezer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce power consumption when an air conditioner is in cooling operation and a refrigerator freezer etc., is in appliance operation.SOLUTION: An additional small-capacity heat exchanger 4 which is piped and connected between the compressor and the heat exchanger of an appliance body such as an existent air conditioner, a refrigerator-freezer, etc. so that the heating medium of the appliance body flows, and condenses the heating medium made high in temperature and pressure by the compressor of the appliance body, a mist nozzle 5 which sprays fine droplets over the small-capacity heat exchanger 4, a supply device which supplies purified water of high pressure to the mist nozzle 5, and a controller which controls the supply device are added to the appliance body. The controller sends the purified water to the mist nozzle 5 by the supply device to spray the purified water over the entire outer surface of the small-capacity heat exchanger 4 by the mist nozzle 5 in the form of fine droplets of water of 10-50 μm, thereby making the small-capacity heat exchanger 4 operate as an additional condenser.

Description

The present invention relates to an additional condensing device that enables reduction of electric power consumed during cooling operation of an air conditioner or operation of a device such as a refrigerator / freezer, improvement of refrigeration capacity, and the like.

Conventionally, as a method of reducing the power consumption during the cooling operation of the air conditioner or the refrigeration / refrigeration operation of the refrigeration / refrigeration apparatus, the heat medium provided in the outdoor unit of the apparatus is cooled and liquefied. An auxiliary cooling device that sprays water directly on a metal fin portion of a heat exchanger (condenser) has been proposed. In a cooling device equipped with such an auxiliary cooling device, water adhering to the surface of the heat exchanger (condenser) by spraying takes heat from the surface of the heat exchanger (condenser) and evaporates. Heat exchange in the exchanger (condenser) is assisted. Therefore, such an auxiliary cooling device is highly expected to improve the energy saving effect of the entire cooling operation.

For example, Patent Document 1 discloses such an auxiliary cooling device. In this auxiliary cooling device, the heat exchanger (condensation) is performed by spraying water toward the heat exchanger (condenser) of the cooling device by the spraying unit, based on information evaluated based on the internal information of the cooling device. It is said that heat exchange in the container is promoted, cooling operation by the cooling device is assisted, and energy can be saved by spraying water while maintaining safety of the cooling operation by the cooling device.

JP 2007-285686 A

In the auxiliary cooling device shown here, water is sprayed by the spraying unit toward the heat exchanger (condenser) of the cooling device, thereby promoting heat exchange in the heat exchanger (condenser). Cooling operation is assisted. And it is judged in the auxiliary cooling device based on the internal information of the cooling device. In this auxiliary cooling device, it is said that energy can be saved by spraying water while maintaining the safety of the cooling operation by the cooling device. Water droplets sprayed because the heat exchanger (condenser) fins are corroded by components such as chlorine contained in the water to be sprayed and the temperature of the heat exchanger (condenser) is operated at around 50 ° C. In the cooling operation, the heat exchange efficiency is not high, the heat medium is not sufficiently liquefied, and the power consumed by the compressor that increases the pressure of the heat medium to liquefy the heat medium is also sufficiently reduced Not something.

The present invention has been made in view of the above circumstances, and it is possible to sufficiently reduce power consumption with a minimum amount of water during cooling operation of an air conditioner or refrigeration / freezing operation of a refrigeration / refrigeration apparatus or the like. In addition, an object is to provide an air conditioner or the like that can improve the refrigerating capacity.

During cooling operation of existing air conditioners, or during operation of refrigeration / refrigeration equipment, it is possible to reduce the power consumption of the equipment body with less water, further improve the cooling / refrigeration capacity of the equipment, and in addition to metal An additional condensing device that enables long-term operation of the device body without causing corrosion of the heat-radiating fins,
For existing equipment such as air conditioners or refrigerators,
An additional small capacity is connected between the compressor of the apparatus main body and the heat exchanger so as to flow through the heat medium of the apparatus main body, and condenses the high-temperature and high-pressure heat medium by the compressor of the apparatus main body. A heat exchanger,
A mist nozzle for spraying minute water droplets on the small-capacity heat exchanger;
A supply device for supplying purified water to the mist nozzle at a high pressure;
By adding a control device for controlling the supply device, the control device sends purified water to the mist nozzle by the supply device, and the purified water is supplied as fine water droplets of 10 μm to 50 μm from the mist nozzle by the small capacity heat. Spray on the entire outer surface of the exchanger and operate the small capacity heat exchanger as an additional condenser.

Further, the temperature of the small capacity heat exchanger is kept at 50 ° C. to 130 ° C., and it is operated as an additional condenser.

Furthermore, during cooling operation of an existing air conditioner, or during operation of a refrigeration / freezer device, the power consumption of the device body can be reduced with less water, and the cooling / refrigeration capacity of the device can be improved and added. Is a method that enables long-term operation of the device body without causing corrosion of the metal radiating fins,
For existing equipment such as air conditioners or refrigerators,
An additional small capacity is connected between the compressor of the apparatus main body and the heat exchanger so as to flow through the heat medium of the apparatus main body, and condenses the high-temperature and high-pressure heat medium by the compressor of the apparatus main body. Heat exchange means;
Spraying means for spraying minute water droplets on the small-capacity heat exchange means;
Supply means for supplying purified water at a high pressure to the spray means;
By adding control means for controlling the supply device, the control means sends purified water to the spray means by the supply means so that the purified water is supplied as fine water droplets of 10 μm to 50 μm outside the small capacity heat exchange means. Spray over the entire surface and operate the additional condensing means as an additional condenser.

(1) In the addition condensing apparatus of the first invention, the heat medium compressed to a high pressure by the compressor and at a high temperature during the cooling operation of the existing air conditioner or the operation of the refrigeration / refrigeration apparatus is the outlet of the compressor Immediately thereafter, the temperature of the small-capacity heat exchanger (condenser) quickly rises by flowing into the added small-capacity heat exchanger that condenses the heat medium. If it is determined that the detected temperature from the sensor installed in the small-capacity heat exchanger in the control device exceeds the outside air temperature and has reached 50 ° C. or more, the control device activates the supply device and purified water of 10 μm to 50 μm from the mist nozzle. A small water droplet is sprayed on the entire outer surface of the small-capacity heat exchanger. The spray of fine water droplets on the purified water lowers the temperature of the outside air around the small-capacity heat exchanger, facilitating heat dissipation in the small-capacity heat exchanger and the existing heat exchanger (condenser), The small water droplets of the purified water adhering to the fins of the small heat exchanger thus quickly evaporate, further promoting the heat dissipation of the small heat exchanger and promoting the cooling and liquefaction of the heat medium.

As a result, the temperature of the heat exchanger such as the small capacity heat exchanger and the existing air conditioner is lowered, and as a result, the condensation temperature in the heat exchanger of the small capacity heat exchanger and the existing air conditioner is lowered, and the compressor is compressed. The work, that is, the load is reduced, and it becomes possible to reduce the power consumption during the cooling operation of the air conditioner and the operation of the refrigerator / freezer. In addition, the supercooling temperature in the heat exchanger such as a small-capacity heat exchanger and an existing air conditioner also decreases, and the refrigerating capacity of the air conditioner and the refrigerator / freezer can be improved. In addition, long-term use is enabled by using purified water that is free from impurities such as chlorine that affects corrosion of metal fins and the like of heat exchangers such as small capacity heat exchangers and existing air conditioners.

(2) According to the second invention, a sensor for detecting the temperature of a small-capacity heat exchanger added to an existing air conditioner or a refrigeration / freezer when the controller is in operation, and a detection output of the sensor. With the function to control the spray amount from the mist nozzle based on it, the temperature of the added small-capacity heat exchanger spraying minute water droplets was controlled to 50 ° C to 130 ° C, so that it adhered to the small-capacity heat exchanger Further promotes evaporation of water droplets, enables cooling of small capacity heat exchangers and existing heat exchangers by more efficient heat exchange, and cooling and liquefaction of heat medium, during cooling operation of existing air conditioners, Alternatively, it is possible to further reduce the power consumption and the refrigeration capacity during operation of the refrigerator / freezer.

(3) According to the third invention, the heat medium compressed to a high pressure by the compressor and having a high temperature during the cooling operation of the existing air conditioner or the operation of the refrigeration / refrigeration apparatus is a small capacity heat exchanging means. As a result, the temperature of the added small-capacity heat exchange means is quickly increased. When it is determined that the detected temperature from the sensor installed in the small-capacity heat exchanging means in the control means exceeds the outside air temperature and becomes 50 ° C. or higher, the control means starts the supply means and 10 μm to 50 μm of purified water from the spray means Are sprayed on the entire outer surface of the small-capacity heat exchange means. The temperature of the outside air around the small-capacity heat exchange means is lowered by spraying minute water droplets of the purified water, and at the same time, the heat dissipation of the heat exchanger such as the small-capacity heat exchange means and the existing air conditioner is promoted. Small water droplets of purified water adhering to the fins of the small-capacity heat exchange means that have reached a high temperature quickly evaporate, further promoting the heat dissipation of the small-capacity heat exchange means and promoting the cooling and liquefaction of the heat medium.

As a result, the temperature of the heat exchange means such as the small capacity heat exchange means and the existing air conditioner is lowered, and as a result, the condensation temperature in the heat exchanger such as the small capacity heat exchange means and the existing air conditioner is lowered. The compression work, that is, the load is reduced, and it becomes possible to reduce the power consumption during the cooling operation of the air conditioner and the operation of the refrigerator / freezer. In addition, the supercooling temperature in the heat exchanger such as a small-capacity heat exchange means and an existing air conditioner also decreases, and the refrigerating capacity of the air conditioner and the refrigerator / freezer can be improved. In addition, long-term use is possible by using purified water that does not contain impurities such as chlorine that affects corrosion such as metal fins of heat exchangers such as small capacity heat exchange means and existing air conditioners.

The schematic of the performance experiment apparatus which installed the addition condensation apparatus by this invention in the existing air conditioner. Schematic of an experimental device that enables water droplets to be sprayed on an outdoor unit of an existing air conditioner.

FIG. 1 shows an outline of an experimental apparatus for carrying out the present invention.
The air conditioner 1 is generally composed of an indoor unit 2a, an outdoor unit 2b, and a connection pipe 3 connecting the two units, and in a heat exchanger (not shown) provided in the indoor unit 2a and the outdoor unit 2b. By performing a reversible refrigeration cycle operation using a heat medium, the temperature of the room in which the indoor unit 2a is installed is raised or lowered, and indoor air conditioning, that is, air conditioning is performed.
The outdoor unit 2b includes a small-capacity heat exchanger 4 that is a condensing unit for a heat medium having a smaller capacity than the first heat exchanger (condenser) provided in the indoor unit 2a, and at least one spraying unit in the vicinity thereof. The mist nozzle 5 is provided. The mist nozzle 5 includes a high-pressure pipe 6 which is a supply means for supplying high-pressure purified water, a high-pressure pump 7, and a purified water supply pipe 8.
In this experimental apparatus, in order to measure the power consumption of the air conditioner, a current / wattmeter for measuring the power of the power line of the outdoor unit 2b is connected.

(Configuration of the embodiment of the present invention)
Hereinafter, with reference to FIG. 1, the operation during cooling operation of the embodiment of the present invention will be described in detail.
For comparison, FIG. 2 shows an experimental apparatus in which an outdoor unit 2b is disposed close to the outer surface of a general separate type air conditioner 1 with a mist nozzle 5 as a spray means, and the mechanism during the cooling and heating operation is simplified. explain. In the separate type air conditioner 1, although not shown, the outdoor unit 2b includes a compressor, a heat exchanger, a blower fan that directs the outside air to the heat exchanger, a throttle valve, a switching valve, and the like, and the indoor unit 2a. Is equipped with a heat exchanger, blower fan and others. The outdoor unit 2b and the indoor unit 2a are connected by a connection pipe 3 to circulate the heat medium.
The heat exchanger of the outdoor unit 2b functions as a condenser during the cooling operation, and heat is exchanged between the heat medium refluxed from the indoor unit 2a and heated to high pressure and high temperature with the outside air in the fins of the heat exchanger. The medium is cooled and condensed (liquefied). During the heating operation, the heat medium that diffuses and recirculates heat in the indoor unit 2a is evaporated (vaporized) as an evaporator.

The heat exchanger of the indoor unit 2a serves as an evaporator during cooling operation, evaporates (vaporizes) the heat medium liquefied in the outdoor unit 2b, lowers the temperature of the heat exchanger, and is heated by a blower fan provided in the indoor unit 2a. The indoor air that hits the fins of the exchanger is cooled and diffused into the room to cool the room. In addition, as a condenser during heating operation, the temperature of the heat exchanger rises due to the high-temperature and high-pressure heat medium sent from the compressor, and the air blower fan provided in the same indoor unit 2a hits the fins of the heat exchanger. A reversible refrigeration cycle operation is performed using a heat medium that warms and diffuses air into the room and heats the room.

In the experimental apparatus of the air conditioner 1 of FIG. 1 which is one embodiment of the present invention, although not shown in the same manner, the outdoor unit 2b has a compressor, a heat exchanger, and a blower fan that applies outside air to the heat exchanger. The indoor unit 2a is provided with a heat exchanger, a blower fan and others, and the outdoor unit 2b includes a first heat exchanger (condensation) provided in the indoor unit 2a. A small-capacity heat exchanger 4 that is a means for condensing a heat medium having a smaller capacity than the condenser), and at least one mist nozzle 5 that is a spray means in the vicinity thereof. The mist nozzle 5 includes a high-pressure pipe 6 which is a supply means for supplying high-pressure purified water, a high-pressure pump 7, and a purified water supply pipe 8.

The capacity of the small-capacity heat exchanger 4 depends on the maximum capacity of the compressor provided in the apparatus to be installed and the flow rate of the heat medium, and the temperature of the small-capacity heat exchanger is 90 ° C. + / − 20 at an outside air temperature of 28 ° C. + / − 2 ° C. The standard size is ℃.
The high-pressure pump 7 is a one-fluid plunger pump type high-pressure pump that discharges purified water from the supply pipe 8 to the high-pressure pipe 6 at a pressure of 8 MPa.
The mist nozzle 5 uses a pressure obtained by a high-pressure pump 7 and sprays purified water supplied from a high-pressure pipe 6 from the nozzle tip with fine water droplets of 15 μm to 30 μm.

The small-capacity heat exchanger 4 is installed between the compressor provided in the outdoor unit 2b and the first heat exchanger (condenser), connected by piping so that the heat medium flows, and the outdoor unit 2b It is installed outside the opening of the outdoor unit 2b as an outside air intake port of the blower fan.
Moreover, the mist nozzle 5 which is a spraying means has installed at least one nozzle on the surface of the radiation fin of the small capacity heat exchanger 4 so that fine water droplets of purified water can be efficiently dispersed.

The number and position of the nozzles of the mist nozzle 5 are the number and position where the spray range of the mist sufficiently covers the surface of the small-capacity heat exchanger 4 according to the surface area of the small-capacity heat exchanger 4 determined according to the apparatus to be attached. Set to.
In this embodiment, the projection area of a small capacity heat exchanger attached to a domestic air conditioner with a capacity of 2.5 kW is 900 square cm, and a mist nozzle is installed on the lower side of the small capacity heat exchanger 4.
In this experiment, the device was installed indoors, and two mist nozzles 5 were used, and the consumption of purified water was 80 cc / min. Reduced and improved refrigeration capacity.
In addition, depending on the installation location of the outdoor unit such as an air conditioner, the installation may be performed in a place where the wind is good. In that case, minute water droplets of purified water sprayed from the nozzles are transferred to the small capacity heat exchanger 4. The purpose can be achieved by installing a windshield or the like so that the surface can be efficiently dispersed.

Although not shown, the procedure for installing the small-capacity heat exchanger 4 in an existing air conditioner or the like is the procedure for confining the heat medium in the outdoor unit performed by the transfer of a general air conditioner or the like 1) of the outdoor unit Close the high-pressure side valve 2) Perform the cooling operation for a short time 3) Close the low-pressure side valve of the outdoor unit, and then form a flow path that allows the heat medium to flow through the small capacity heat exchanger 4 by the following operation. Plan.
4) Recovery of the heat medium from the access valve 5) Vacuuming the entire heat medium flow path in the air conditioner from the access valve 6) Cutting the piping from the compressor to the first heat exchanger 7) Small in the cutting section Weld and install the piping at the entrance and exit of the capacity heat exchanger. 8) Vacuuming from the access valve and checking for “leakage” such as welds. 9) Refilling the recovered heat medium. (If necessary, replenish heat medium)

(Operation of the embodiment of the present invention)
During the cooling operation, the gaseous heat medium whose pressure and temperature are increased by the compressor in the outdoor unit 2b first flows to the small-capacity heat exchanger 4, and the small-capacity heat exchanger 4 has a small capacity. Due to the heat of the gaseous heat medium that has become high pressure, the temperature of the small-capacity heat exchanger 4 in the previous period quickly rises up to nearly 90 degrees.
When the temperature of the small-capacity heat exchanger 4 rises and exceeds the outside air temperature, and the sensor (not shown) detects the temperature provided in the control device (not shown), the high-pressure pump 7 is activated by a command from the control device. Then, the pressure of the purified water supplied from the supply pipe 8 is increased by the high pressure pump 7 and supplied to the mist nozzle 5, and spraying of fine water droplets of 10 μm to 50 μm of purified water from the mist nozzle 5 starts. The minute water droplets of the sprayed purified water are mixed with the outside air around the outdoor unit 2b, whereby the temperature of the outside air by the blower fan hitting the fins of the small capacity heat exchanger 4 (condenser) is also cooled. Then, heat exchange proceeds in the small capacity heat exchanger 4 through which the high temperature heat medium flows by the air whose temperature has decreased, and as a result, the temperature of the high temperature and high pressure gaseous heat medium is decreased, and the small capacity heat exchanger 4 is Promotes cooling and liquefaction of flowing gaseous heat medium.

In addition, the fine water droplets of the sprayed clean water adhering to the fins of the small capacity heat exchanger 4 evaporate on the fin surface of the small capacity heat exchanger 4 at a high temperature to dissipate the heat of the small capacity heat exchanger. Furthermore, the temperature of the small capacity heat exchanger 4 is accelerated and the liquefaction of the gaseous heat medium is further promoted.
The heat medium whose temperature has been lowered by the small-capacity heat exchanger 4 flows to the first heat exchanger of the outdoor unit 2b, and here also in the first heat exchanger, the minute amount of the sprayed purified water is small. The outside air whose temperature has been lowered with water droplets is applied to the fins of the first heat exchanger, further cooling the heat medium flowing through the first heat exchanger, and sufficient liquefaction of the heat medium.

The liquefied heat medium is sent through a valve (throttle valve) to a heat exchanger (not shown) as a heat evaporator provided in the indoor unit 2a through the connection pipe 3 like the conventional air conditioner 1. . The sent heat medium takes the heat of the heat exchanger of the indoor unit 2a and gradually evaporates. As a result, the heat exchanger is cooled and the temperature of the heat exchanger of the indoor unit 2a is lowered. Then, indoor air is applied to the fins of the heat exchanger whose temperature has been lowered by a blower fan to exchange heat with the room air, and the room temperature of the room provided with the room unit 2a is lowered to cool the room.
The heat medium that has exited the heat exchanger (evaporator) of the indoor unit 2a becomes higher in temperature than the entrance due to the heat taken from the heat exchanger, returns to the outdoor unit 2b, and is sent to the compressor through the connection pipe 3. In this way, the heat medium circulates between the heat exchangers of the indoor unit 2 a and the outdoor unit 2 b via the connection pipe 3.

As described above, according to the addition condensing apparatus of the present invention, the supplied purified water is made into minute water droplets from the mist nozzle and sprayed on the surface of the small capacity heat exchanger of the additional condensing apparatus, thereby providing a small capacity heat exchanger and The temperature of the outside air blown to the fins of the first heat exchanger of the outdoor unit is lowered, and heat can be dissipated more efficiently than a heat exchanger (condenser) using ordinary outside air without spraying minute water droplets.・ Promotes liquefaction of gaseous heat medium at high pressure. In addition, small water droplets of purified water directly attached to the fins of the small-capacity heat exchanger evaporate at a high temperature, further dissipating the heat of the small-capacity heat exchanger, resulting in high-temperature and high-pressure gaseous heat. The medium is sufficiently liquefied.

In this way, by spraying minute water droplets of purified water on a small-capacity heat exchanger, the condensation temperature in the heat exchanger of the additional condensing device and the outdoor unit is lowered, and as a result, the compression work of the compressor, that is, the load is reduced. The power consumption of the air conditioner can be reduced.
In addition, the supercooling temperature in the heat exchanger also decreases, and the refrigerating capacity of the air conditioner also increases.
In addition, purified water that does not contain impurities such as chlorine is sprayed on the heat exchanger in the form of minute water droplets, so even if it adheres to the heat exchanger body, fins, etc., it may depend on impurities contained in general water such as chlorine. There is no corrosion that occurs, and long-term operation is possible.

During the heating operation, the small capacity heat exchanger operates as an evaporator together with the heat exchanger provided in the outdoor unit without spraying fine water droplets of purified water from the mist nozzle.

(Verification by experiment)
The power saving effect during the cooling operation of the air conditioner provided with the additional condensing device according to the present invention will be described with reference to Table 1 based on the numerical values actually measured by the experimental apparatus shown in FIG. ("Condenser" in the table refers to a small capacity heat exchanger.)
In order to compare the effect of power saving, this time, we operated the air conditioner so that the room was 35 square meters and the humidity was kept almost constant and the room temperature was kept almost constant from 32 ℃ to 34 ℃. The experiment was conducted by setting four conditions.
The amount of purified water used at this time was 40 cc / min per mist nozzle.

(Base operation)
In the base operation, in the experimental air conditioner shown in FIG. 2, the cooling operation was performed under the same conditions as a general air conditioner that does not spray from the added mist nozzle to the heat exchanger provided in the outdoor unit. .
(With spray)
In the operation with spray, in the air conditioner shown in FIG. 2, the air conditioner was cooled by adding spray from the added mist nozzle to the heat exchanger provided in the outdoor unit.
(Capacitor added)
In the condenser addition operation, a small capacity heat exchanger was added outside the outdoor unit as shown in FIG. 1, and the air conditioner was cooled without spraying from the mist nozzle provided to the small capacity heat exchanger. .
(Condenser + spray)
In the operation with addition of a condenser and spraying, as shown in FIG. 1, a small-capacity heat exchanger was added outside the outdoor unit, and a small amount of purified water was sprayed from the mist nozzle provided to cool the air conditioner.

Experimental result)
By comparing the current value (power consumption) in each cooling operation of 7.98-6.28-7.73-5.98 (800-629-774-603 (Watt)), a small capacity heat exchanger (condenser In the embodiment of the present invention in which spraying was added to the fin surface, the effect of greatly reducing the current value and suppressing the power consumption while maintaining the indoor blowing temperature at the same temperature was confirmed.

In the above description, purified water is supplied to the water sprayed to the heat exchanger (condenser) through the supply pipe 8, but a general water supply is connected to the apparatus by using a filter such as activated carbon or hollow fiber. It is obvious that it is possible to achieve the intended purpose.
In addition to the temperature of the small-capacity heat exchanger, the control device as the control means includes a sensor for the outside air temperature and humidity, and the control means uses a more detailed control algorithm or a nozzle provided in the mist nozzle as the spray means. It is possible to reduce the power consumption and improve the refrigerating capacity by performing advanced control by spraying purified water onto the small capacity heat exchanger by optimizing the number of nozzles and the arrangement of nozzles for the small capacity heat exchanger. Become.

(Operation of the second embodiment according to the present invention)
In the second embodiment,
In addition to the first embodiment, the temperature of the small-capacity heat exchanger 4 is detected and the amount of purified water sprayed is controlled so that the temperature of the small-capacity heat exchanger 4 is in the range of 50 ° C to 130 ° C.
As a result, as in the first embodiment, the sprayed purified water becomes minute water droplets and mixes with the outside air, so that the outside air whose temperature has been lowered hits the small capacity heat exchanger 4 and the small capacity heat exchange has reached a high temperature. At the same time, the heat exchange with the outside air temperature is further promoted in the cooler 4, and at the same time, the fine water droplets of the sprayed clean water adhering to the fins of the small heat exchanger 4 are actively evaporated, and the heat in the small heat exchanger is Increased emission.
Together, these enable cooling of heat exchangers such as small-capacity heat exchangers and existing air conditioners by more efficient heat exchange, in small-capacity heat exchangers and heat exchangers of existing air conditioners. Cooling of the heat medium is further promoted, the condensation temperature in the small capacity heat exchanger and the heat exchanger of the existing air conditioner is further lowered, and as a result, the compression work of the compressor such as the existing air conditioner is further reduced. That is, the load is further reduced, and it is possible to further improve the reduction in power consumption during the cooling / freezing operation of the air conditioner. In addition, the subcooling temperature in the small capacity heat exchanger and the heat exchanger of the existing air conditioner also decreases, and the refrigerating capacity of the air conditioner can be further increased.

The present invention is applied to a general home air conditioner to a device that cools or cools / freezes goods such as a closed space or food using a heat medium such as a refrigeration / freezing device, and the power consumption of the device, etc. This is particularly useful as a medium / large / large capacity air conditioning / refrigeration system.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2a Indoor unit 2b Outdoor unit 3 Connection piping 4 Small capacity heat exchanger 5 Mist nozzle 6 High pressure piping 7 High pressure pump 8 Supply piping 9 Wattmeter

Claims (3)

During cooling operation of existing air conditioners, or during operation of refrigeration / refrigeration equipment, it is possible to reduce the power consumption of the equipment body with less water, further improve the cooling / refrigeration capacity of the equipment, and in addition to metal It is an additional condensing device that enables long-term operation of the device body without causing corrosion of the heat-radiating fins, and for existing device bodies such as existing air conditioners or refrigerators,
An additional small capacity is connected between the compressor of the apparatus main body and the heat exchanger so as to flow through the heat medium of the apparatus main body, and condenses the high-temperature and high-pressure heat medium by the compressor of the apparatus main body. A heat exchanger,
A mist nozzle for spraying minute water droplets on the small-capacity heat exchanger;
A supply device for supplying purified water to the mist nozzle at a high pressure;
And a control device for controlling the supply device. The control device sends purified water to the mist nozzle by the supply device, and the purified water is supplied as fine water droplets of 10 μm to 50 μm from the mist nozzle. An addition condensing apparatus, characterized by spraying the entire outer surface of the exchanger and operating the small capacity heat exchanger as an additional condenser. 2. The additional condensing apparatus according to claim 1, wherein the small-capacity heat exchanger is operated as an additional condenser while maintaining a temperature of 50 to 130.degree. During cooling operation of existing air conditioners, or during operation of refrigeration / refrigeration equipment, it is possible to reduce the power consumption of the equipment body with less water, further improve the cooling / refrigeration capacity of the equipment, and in addition to metal Is a method that enables long-term operation of the device body without causing corrosion of the heat-radiating fins,
For existing equipment such as air conditioners or refrigerators,
An additional small capacity is connected between the compressor of the apparatus main body and the heat exchanger so as to flow through the heat medium of the apparatus main body, and condenses the high-temperature and high-pressure heat medium by the compressor of the apparatus main body. Heat exchange means;
Spraying means for spraying minute water droplets on the small-capacity heat exchange means;
Supply means for supplying purified water at a high pressure to the spray means;
By adding control means for controlling the supply device, purified water is sent to the spray means by the supply means by the control means, and the purified water is supplied as fine water droplets of 10 μm to 50 μm from the spray means by the small capacity heat. The entire outer surface of the exchange means is sprayed and the additional small capacity heat exchange means is operated as an additional condenser.

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