JP2013174428A - Auxiliary device for air cooling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means that can be retrofitted to an outdoor unit of an existing air cooling device and uses rain water and clean water in different ways while enhancing a cooling efficiency of the outdoor unit.SOLUTION: An auxiliary device 1 for air cooling includes: a container 11 for storing rain water; a switching means for passing selectively either rain water or clean water; a nozzle 12 for jetting liquid in a form of mist; a fixing means for fixing the nozzle 12; a pump 13 for supplying rain water or clean water to the nozzle 12; a water pressure adjuster for adjusting the pressure of rain water or clean water supplied to the nozzle 12; a copper tube 14 and synthetic resin piping 15 forming a liquid passage; a means for adding sodium hypochlorite to rain water contained in the container 11; and a means for adding sodium polyphosphate to clean water. The auxiliary device 1 for air cooling sets rain water or clean water in a form of droplets having particle sizes in a specific range on a surface of a cooling fin of a condenser of an air cooling device C and removes heat by vaporization; thereby enhancing the cooling efficiency of the outdoor unit.

Description

  The present invention relates to an air-cooling auxiliary device that increases the cooling efficiency of an outdoor unit of an air-cooling device that cools indoor air.

  Generally, an outdoor unit of an air-cooling device that cools indoor air is a compressor that compresses refrigerant gas into a high-temperature and high-pressure gas, and a refrigerant gas sent from the compressor exchanges heat with the outside air to generate a liquid at room temperature and high pressure. And a blower that creates a flow of air to increase the efficiency of heat exchange of the condenser.

  Conventionally, various attempts have been made to increase the cooling efficiency of the outdoor unit of the air cooling device. For example, the technique disclosed in Patent Document 1 increases the cooling efficiency of the condenser by spraying the fine water particles directly onto the condenser and evaporating and cooling the fine water particles attached to the condenser fins. Yes.

  In addition, in the technique disclosed in Patent Document 2, in order to prevent the scale (film such as calcium) from adhering to the condenser, water is sprayed from a position sufficiently away from the condenser to condense the water. Vaporized before it reaches the vessel and blows the air cooled to take away the heat of vaporization.

  In addition, the technology disclosed in Patent Literature 3 stores rainwater in a container and sprays the rainwater on the above-described outdoor unit, thereby cooling the exhaust heat of the outdoor unit and contributing to prevention of global warming. It is said.

Noto 3169504 JP 2009-243754 A Noto 3168906

  By the way, in the cooling method of spraying mist-like droplets on the condenser, a simple means for properly using rainwater and tap water from the water supply and increasing the cooling efficiency of the outdoor unit has not been disclosed yet.

  Therefore, an object of the present invention is to provide means for increasing the cooling efficiency of an outdoor unit that can be retrofitted to an outdoor unit of an existing air-cooling device and uses rainwater and clean water separately.

The present invention has been conceived in view of the above object,
A container for storing rainwater;
A switching means for selectively passing either rainwater supplied from the container and clean water supplied from the water supply,
One or more nozzles that spray liquid in a mist form;
Fixing means for fixing each of the one or more nozzles so that the liquid ejected from the nozzles reaches the cooling fins of the condenser of the air cooling device;
An air cooling auxiliary device comprising: a pump for pressurizing rainwater supplied from the container or water supplied from the water supply via the switching means and supplying the pressurized rainwater or water to the nozzle. (First embodiment).

In the first embodiment described above,
The switching means is
A floating body that receives buoyancy upward by water continuous with the surface of the rainwater in the container;
In a state where the vertical position of the floating body is equal to or higher than a predetermined position, the rainwater supplied from the container is allowed to pass but the water supplied from the water supply is not allowed to pass, and the vertical position of the floating body is higher than the predetermined position. In the lower state, a configuration may be employed that includes a valve that allows the rainwater supplied from the container to pass without passing the rainwater supplied from the water supply (second embodiment).

In the first embodiment described above,
A sensor for detecting that the level of rainwater in the container is equal to or higher than a predetermined position;
The switching means allows the rainwater supplied from the container to pass therethrough while the rainwater level in the container is detected by the sensor to be equal to or higher than the predetermined position. Water that is supplied from the water supply without allowing the rainwater supplied from the container to pass while the water level of the rainwater in the container is detected to be lower than the predetermined position by the sensor. A configuration having a valve that allows the passage of gas may be employed (third embodiment).

In any one of the first to third embodiments,
A water pressure adjusting means for adjusting a water pressure of rain water or clean water supplied to the nozzle so that rain water or clean water ejected from the nozzle reaches the cooling fin as particles having a particle size within a predetermined range; A configuration provided may be employed (fourth embodiment).

In any one of the first to fourth embodiments,
A structure in which at least a part of a pipe that forms a flow path of rainwater from the container to the nozzle and a pipe that forms a flow path of clean water from the water supply to the nozzle is a copper tube ( Fifth embodiment).

In any one of the first to fifth embodiments described above,
It has a raindrop sensor that detects raindrops when it rains,
The pump may adopt a configuration in which pressurized rainwater or clean water is not supplied to the nozzle while the raindrop sensor detects raindrops (sixth embodiment).

In any one of the first to sixth embodiments,
Adopting a configuration comprising means for adding sodium hypochlorite to rainwater stored in the container so that the rainwater stored in the container contains sodium hypochlorite at a concentration within a predetermined range. It is also possible (seventh embodiment).

In any of the first to seventh embodiments,
A configuration may be adopted that includes means for adding sodium polyphosphate to the water supplied from the water supply so that the water discharged from the nozzle contains sodium polyphosphate at a concentration within a predetermined range. (Eighth embodiment).

The present invention also provides:
The rainwater stored in the container provided in the air-cooling auxiliary device according to any one of the first to sixth embodiments is stored in the container so as to contain sodium hypochlorite at a concentration within a predetermined range. A method for assisting air cooling, comprising the step of adding sodium hypochlorite to rainwater (9th embodiment).

The present invention also provides:
The water supplied from the water supply so that the clean water ejected from the nozzle included in the air-cooling auxiliary device according to any one of the first to sixth embodiments includes sodium polyphosphate at a concentration within a predetermined range. A method for assisting air cooling comprising the step of adding sodium polyphosphate to water is provided (tenth embodiment).

  According to the air-cooling auxiliary device according to the first embodiment of the present invention, since the switching means for selectively passing either rainwater or clean water is provided, the rainwater can be used effectively and when the rainwater is insufficient. Is preferable because water can be used.

  According to the air-cooling auxiliary device according to the second embodiment of the present invention, since the above-described switching means is configured using the floating body and the valve, rainwater and clean water can be appropriately used with a simple structure.

  According to the air-cooling auxiliary instrument according to the third embodiment of the present invention, since the sensor for detecting the level of rainwater is provided, it is possible to appropriately use rainwater and clean water by electronic means.

  According to the air-cooling auxiliary device according to the fourth embodiment of the present invention, rainwater or clean water reaches the cooling fin as particles having a particle size within a predetermined range, and thus vaporization is performed on the surface of the cooling fin. As a result, the heat exchange rate of the condenser is increased, and a large amount of rainwater or clean water is not required.

  According to the air-cooling auxiliary device according to the fifth embodiment of the present invention, since at least a part of the flow path is formed by the copper tube, there is no problem in strength, and it is easy to remove and suitable for maintenance. .

  According to the air-cooling auxiliary device according to the sixth embodiment of the present invention, the operation is automatically stopped during the rain when the necessity for operation is low, and the electricity bill and the like are saved.

  According to the air-cooling auxiliary instrument according to the seventh embodiment of the present invention, sodium hypochlorite is added to rainwater at a predetermined rate, so that rainwater can be prevented from being spoiled in the container.

  According to the air-cooling auxiliary device according to the eighth embodiment of the present invention, sodium polyphosphate is added to the water at a predetermined rate, so that scale can be prevented from adhering to the outdoor unit.

  According to the air cooling assistance method according to the ninth embodiment of the present invention, the same effect as the air cooling assistance device according to the sixth embodiment can be obtained.

  According to the air cooling assistance method according to the tenth embodiment of the present invention, the same effect as the air cooling assistance device according to the seventh embodiment can be obtained.

FIG. 1 is a diagram schematically showing an outdoor unit of an air cooling device to which an air cooling auxiliary device according to an embodiment which is a specific example of the present invention is attached. FIG. 2 is a diagram for explaining the configuration of each element of the air-cooling auxiliary device according to the embodiment which is a specific example of the present invention. FIG. 3 is a diagram for explaining an example of switching means for selectively allowing either rainwater or clean water according to an embodiment which is a specific example of the present invention. FIG. 4 is a diagram illustrating the configuration of each element of the air-cooling auxiliary device according to the modification of the embodiment of the present invention.

(Example)
Hereinafter, an embodiment which is a specific example of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram schematically illustrating an outdoor unit of an air cooling device C to which an air cooling auxiliary device 1 according to the present embodiment is attached.

  FIG. 2 is a diagram illustrating the configuration of each element of the air-cooling auxiliary instrument 1.

  The air-cooling auxiliary device 1 includes a container 11 for storing rainwater, switching means for selectively passing either rainwater or clean water, five nozzles 12 for ejecting liquid in a mist, and five nozzles. A fixing means for fixing each of 12, a pump 13 for pressurizing and supplying the rain water or clean water to each of the five nozzles 12, and rain water or clean water supplied to the five nozzles 12 A water pressure adjusting means for adjusting the water pressure, a copper tube 14 and a synthetic resin pipe 15 forming a liquid flow path, a means for adding sodium hypochlorite to the rainwater stored in the container 11, and And means for adding sodium polyphosphate to the clean water.

  The container 11 is a water tank made of synthetic resin having a substantially cylindrical shape such as a bucket for storing rainwater. The capacity of the container 11 is, for example, 100 liters. The container 11 is light and portable and can be easily removed and moved. That is, the container 11 can be easily installed at a predetermined position.

  A pipe 15 for transferring rainwater to a backup water storage tank 111 at the time of overflow is attached to the upper part of the container 11.

  The switching means for selectively allowing either rainwater supplied from the container 11 or clean water supplied from the water supply to have the following elements as shown in FIG.

  That is, the switching means is supplied from the container 11 when the floating body 161 receives buoyancy upward from the water continuous with the surface of the rainwater in the container 11 and the vertical position of the floating body 161 is equal to or higher than a predetermined position. Rainwater is allowed to pass, water that is supplied from the water supply is not allowed to pass, and rainwater supplied from the container 11 is not allowed to pass from the water supply when the vertical position of the floating body 161 is below the predetermined position. And a valve 162 that allows the clean water to pass therethrough. In this case, the floating body 161 and the valve 162 constitute the switching mechanism 16 of the switching means.

  The nozzle 12 has the same shape as that used when spraying a herbicide or an insecticide, and is made of a synthetic resin. In use, the nozzle 12 ejects liquid in the form of a mist, and attaches the liquid to the cooling fins of the condenser of the air cooling device C as a large number of particles having a particle diameter within a predetermined range. The nozzle 12 is of a type that ejects liquid in two directions with one nozzle 12, for example.

  The relationship between the flow rate of the fluid flowing through the nozzle 12 and the pressure is important, and a good fog state and momentum cannot be secured unless an appropriate balance is maintained. This balance is realized by a combination of the shape of the nozzle 12 and the performance of the pump 13 described later.

  The means for fixing each of the five nozzles 12 is, for example, a member 17 for holding the nozzle 12 fixed by screwing to the outside of the air cooling device C. The member 17 for holding the nozzle 12 is made of stainless steel, and the liquid ejected from the nozzle 12 is directed to each of the five nozzles 12 with respect to each of the cooling fins of the condenser of the five air-cooling apparatuses C. Place it at a position that will reach it. In other words, one nozzle 12 is assigned to one outdoor unit.

  The pump 13 pressurizes rainwater supplied from the container 11 or clean water supplied from the water supply via the switching means, and supplies the pressurized rainwater or clean water to the nozzle 12. The pump 13 is, for example, a high-pressure pump in which the pressure difference between suction and discharge is 3.2 mPa and the flow rate falls within the range from 3.7 liters to 4.2 liters per minute with respect to one nozzle 12. .

  In order to maintain the balance described above, it is appropriate to assign up to five nozzles 12 to one pump 13 having this performance. That is, if six or more nozzles 12 are assigned to one pump 13, the flow rate or water pressure of the liquid supplied to the nozzles 12 may not meet the necessary and sufficient conditions.

  As described above, the water pressure adjusting means for adjusting the water pressure of the rain water or the clean water supplied to the five nozzles 12 has a large number of particle sizes within a predetermined range. It is a means for adjusting the water pressure so as to reach the cooling fins as particles.

  The water pressure adjusting means is, for example, a water pressure adjusting mechanism 131 provided for the pump 13. The water pressure adjusting mechanism 131 deforms the flow path in the pump 13 or adjusts the rotational speed of the rotary member of the pump, for example, when a screw provided in the pump 13 is twisted by a user's hand. In this case, the above-described screw and its accompanying elements constitute the hydraulic pressure adjusting mechanism 131.

  The above-described water pressure adjusting means is provided in this way because if the liquid ejected toward the cooling fin has vaporized before reaching the cooling fin, the heat of vaporization is generated on the surface of the cooling fin. This is because the heat exchange efficiency of the condenser cannot be increased. Moreover, if the liquid ejected toward the cooling fin adheres to the cooling fin with a particle size that is too large, a large amount of water is required, which is inefficient.

  The copper tube 14 is a pipe that forms a flow path for sending rainwater from the container 11 to the nozzle 12 via the pump 13 and a pipe that forms a flow path for sending clean water from the water supply to the nozzle 12 via the pump 13. The copper tube 14 is normally used for sending gas, but is adopted because it is suitable in this embodiment. This is because, for example, if a pipe made of vinyl chloride is installed, it cannot be easily removed, because a vinyl pipe is too weak. The tube needs to be removable because it can become clogged with dirt. Also, considering the chemical resistance, the copper tube 14 is appropriate.

  As described above, the pipe 15 is made of synthetic resin, and is used for transferring rainwater to the water storage tank 111 when the container 11 overflows, or for transferring rainwater to the container 11.

  The means for adding sodium hypochlorite to the rainwater stored in the container 11 includes a sensor 181 that measures the flow rate of rainwater, and the sensor 181 that measures the passage of a predetermined amount of rainwater flow. It has a device 182 for adding a predetermined amount of sodium hypochlorite to rainwater, and a control device 183 for controlling them. Thus, the rainwater has a predetermined concentration of sodium hypochlorite. The reason why sodium hypochlorite is added is to prevent the rain water from decaying in the container 11. That is, sodium hypochlorite is used as a disinfectant. In this case, the sensor 181, the instrument 182, and the control device 183 constitute a sodium hypochlorite addition mechanism 18 that is a means for adding sodium hypochlorite.

  The means for adding sodium polyphosphate to the water supplied from the above-mentioned water supply includes a sensor 191 that measures the flow rate of clean water, and a sensor 191 that measures the passage of a predetermined amount of clean water. , A device 192 for adding a predetermined amount of sodium polyphosphate to the clean water, a control device 193 for controlling them, and a mixer 194 for mixing clean water and sodium polyphosphate. As a result, the clean water has a predetermined concentration of sodium polyphosphate. The reason why sodium polyphosphate is added is to prevent the scale from adhering to the cooling fins of the condenser of the air cooling device C. That is, sodium polyphosphate is used as a scale inhibitor. This scale is a hardness component such as calcium or magnesium contained in tap water or a silica component. There is a problem in that the heat exchange efficiency of the condenser decreases due to the adhesion of the scale. In this case, the sensor 191, the instrument 192, the control device 193, and the mixer 194 constitute a sodium polyphosphate addition mechanism 19 as a means for adding sodium polyphosphate.

  The power source for operating the pump 13 and the like has not been described in particular, but is assumed to be covered by a household power source (100 volts).

  An example of a method for using the air-cooling auxiliary instrument 1 having the above configuration will be briefly described.

  In an outdoor unit of an air-cooling device that is installed outside the factory, one cooling auxiliary device 1 is attached later to the five outdoor units. Specifically, one nozzle 12 is arranged and fixed to one outdoor unit using a member 17 (a nozzle tube 14 is attached to the nozzle 12 and rainwater or clean water is supplied thereto. Is configured). In this case, as described above, each of the nozzles 12 is fixed at a position where the liquid ejected from the nozzle 12 reaches the cooling fin of the condenser of the air cooling device C.

  Adjustment is performed using the hydraulic pressure adjustment mechanism 131 so that the liquid is ejected from the nozzle 12 toward the cooling fin and the liquid reaches the cooling fin as particles having a particle diameter within a predetermined range.

  The above-described factory operates 24 hours a day, 365 days a year, and the air cooling device C is continuously operated during the summer period. In this case, the air-cooling auxiliary device 1 is kept on and is continuously operating. However, when the fluctuation of the outside air temperature is large, the air cooling auxiliary device 1 is turned on when the outside air temperature is higher than the predetermined temperature in conjunction with a sensor for measuring the temperature, and the outside air temperature is less than the predetermined temperature. In that case, the air-cooling auxiliary device 1 may be turned off.

  Further, when the air cooling device C is operated only for a predetermined time in 24 hours such as spring or autumn, the on / off of the air cooling assisting device 1 may be linked to the on / off of the air cooling device C.

  The air-cooling auxiliary instrument 1 that functions in such a manner takes heat of vaporization on the surface of the cooling fin of the condenser of the air-cooling device C, increases the efficiency of heat exchange of the condenser, and includes the air-cooling device C as a whole. The amount of power used can be reduced, which is preferable.

  Further, under a predetermined condition, the mist-like liquid vaporized before reaching the condenser from the nozzle 12 takes heat of vaporization in the air, so that the temperature of the air exhausted from the air cooling device C is lowered. It also has an effect. Such a side effect occurs because it is impossible for all liquids to reach the cooling fins as particles having a particle size within a predetermined range.

(Modification)
The embodiments described above can be variously modified within the scope of the technical idea of the present invention.

  First, the numerical value, shape, material, number, position, etc. for specifying each component of the air-cooling auxiliary device 1 are merely examples, and other numerical values, shape, material, number, position, etc. are used if there is no particular problem. May be.

  For example, the air-cooling auxiliary instrument 1 is next to the container 11, the switching means, the nozzle 12, the fixing means, the pump 13, the water pressure adjusting means, the copper tube 14 and the synthetic resin piping 15, and the rain water. Although the means for adding sodium chlorite and the means for adding sodium polyphosphate to clean water are provided, the present invention is not limited thereto.

  Therefore, if there is no particular problem, there may be no means for adjusting the water pressure, means for adding sodium hypochlorite, and means for adding sodium polyphosphate.

  Further, the copper tube 14 and the synthetic resin pipe 15 may be replaced with pipes of any other material as long as there is no particular problem.

  In addition, the container 11 is a water tank made of synthetic resin having a substantially cylindrical shape such as a bucket and has a capacity of 100 liters, but the present invention is not limited thereto. Absent.

  Therefore, the container 11 may have any shape, may be made of any material, and may have a capacity other than 100 liters, as long as there is no particular problem.

  In addition, a pipe 15 for transferring rainwater to the backup water storage tank 111 at the time of overflow is attached to the upper part of the container 11, but if there is no particular problem, the water storage tank 111 and a part of the pipe 15 are It may not be provided.

  Further, the switching means for selectively passing either rainwater supplied from the container 11 or clean water supplied from the water supply receives buoyancy upward by water continuous with the surface of the rainwater in the container 11. In the state where the vertical position of the floating body 161 and the floating body 161 is equal to or higher than the predetermined position, the rain water supplied from the container 11 is allowed to pass, and the water supplied from the water supply is not allowed to pass, and the vertical position of the floating body 161 is In the state below the predetermined position, the rainwater supplied from the container 11 is not allowed to pass, and the valve 162 that allows the water supplied from the water supply to pass therethrough is provided. It is not limited.

  Therefore, the air-cooling auxiliary instrument 1 includes a sensor that detects that the rainwater level in the container 11 is equal to or higher than a predetermined position, and the switching means described above uses the sensor to determine the rainwater level in the container 11 as described above. While it is detected that the position is equal to or higher than the position, the rainwater supplied from the container 11 is allowed to pass, and the water supplied from the above-mentioned water supply is not allowed to pass. You may make it have a valve which does not let the rainwater supplied from the container 11 pass, but allows the water supplied from the above-mentioned water supply to pass through while it is detected that it is below the above-mentioned predetermined position.

  Furthermore, if there is no particular problem, the switching means described above may selectively pass rainwater and clean water by any method.

  The nozzle 12 has the same shape as that used when spraying the herbicide or insecticide, and is made of a synthetic resin. However, the present invention is not limited thereto. Accordingly, the nozzle 12 may have any shape and may be made of any material as long as there is no particular problem.

  Further, the nozzle 12 is of a type that ejects liquid in two directions with one nozzle 12, but if there is no particular problem, the nozzle 12 is of a type that ejects liquid in one direction or more than three directions. It may be a thing.

  Further, the means for fixing each of the five nozzles 12 is the member 17 for holding the nozzle 12 fixed by screwing to the outside of the air cooling device C. However, if there is no particular problem, the nozzle 12 May be fixed in any position by any other means. Further, although the member 17 is made of stainless steel, it may be made of any other material.

  Further, the number of nozzles 12 is not limited to five. If there is no particular problem, the number of nozzles 12 may be other than five.

  The above-mentioned water pressure adjusting means is the water pressure adjusting mechanism 131 provided in the pump 13, and the water pressure adjusting mechanism 131 deforms the flow path in the pump 13 by the screw provided in the pump 13 being twisted by the user's hand. Or the rotational speed of the rotary member of the pump is adjusted. If there is no particular problem, the water pressure adjusting means 131 adjusts the water pressure of rainwater or clean water supplied to the nozzle 12 by any other method. It may be.

  The means for adding sodium hypochlorite to the rainwater stored in the container 11 includes a sensor 181 that measures the flow rate of rainwater and the rainwater when the passage of a predetermined amount of rainwater is measured by the sensor 181. It is assumed that a device 182 for adding a predetermined amount of sodium hypochlorite and a control device 183 for controlling them are provided, but if there is no particular problem, this means can be replaced by any other means. May be. For example, a chemical solution other than sodium hypochlorite may be added, or the amount thereof may be changed. That is, sodium hypochlorite used as a disinfectant may be replaced by any other readily available such as isothiazoline. In the above-described embodiment, sodium hypochlorite that is easily available and inexpensive is used.

  In addition, the means for adding sodium polyphosphate to the water supplied from the above-described water supply is a sensor 191 that measures the flow rate of the clean water and when the passage of a predetermined amount of clean water is measured by the sensor 191. It is assumed that the apparatus 192 for adding a predetermined amount of sodium polyphosphate to the clean water, the controller 193 for controlling them, and the mixer 194 for mixing clean water and sodium polyphosphate are particularly problematic. If not, the means may be replaced by any other means. For example, a chemical solution other than sodium polyphosphate may be added, or the amount thereof may be changed. That is, the sodium polyphosphate used as a scale inhibitor may be replaced by any other scale inhibitor. In the above-described embodiment, sodium polyphosphate, which is the most common and easily available, is used.

  Further, the power source for operating the pump 13 and the like is not limited to a household power source, and any other power source may be used as long as there is no particular problem. The voltage may be any number of volts as long as there is no particular problem.

  Moreover, the usage method of the air-cooling auxiliary instrument 1 mentioned above is an example to the last, and if there is no problem in particular, it may be used by any other method. For example, the air-cooling auxiliary device 1 is attached to the air-cooling device C as a retrofit, but the present invention is not limited thereto, and the air-cooling auxiliary device 1 may be fixed to the air-cooling device C from the beginning. .

  In addition, the air-cooling auxiliary instrument 1 according to the above-described embodiment includes a raindrop sensor that detects raindrops when it rains, and while the raindrop sensor detects raindrops, the cooling fins of the air-cooling device C from the nozzle 12 of the air-cooling auxiliary instrument 1 are provided. It is good also as a structure which does not perform the ejection of the liquid with respect to.

  FIG. 4 is a diagram showing the configuration of each element of the air-cooling auxiliary device 1 ′ according to this modification. As shown in FIG. 4, a raindrop sensor 201 is connected to the pump 13 of the air-cooling auxiliary instrument 1 ′. More specifically, the raindrop sensor 201 is electrically connected to a control unit (not shown) that controls the operation of the pump 13, and while detecting raindrops, a predetermined value is supplied to the control unit of the pump 13. Outputs electrical signals. The control unit of the pump 13 stops the operation of the pump 13 while receiving a predetermined electric signal input from the raindrop sensor 201.

  During the rain, the atmospheric temperature generally decreases, the load of the air cooling device C decreases, rain drops on the cooling fins, and the rain drops evaporate in the same manner as when the liquid is ejected from the nozzles of the air cooling aids. The heat of the cooling fins is removed as heat of vaporization to enhance the cooling effect. Therefore, it is less necessary to operate the air cooling assistance device. According to the air-cooling auxiliary device 1 ′ according to this modified example, the operation during the rain which is less necessary is stopped, so that the electricity cost required for the operation can be saved.

  The air-cooling auxiliary appliance of the present invention can be reduced in overall power consumption by being attached to an outdoor unit of an air-cooling device installed in a factory or a general home, and used by many users. It is expected that Therefore, it is manufactured and sold in large quantities and can be used in a service industry such as a so-called manufacturing industry or a retail industry.

DESCRIPTION OF SYMBOLS 1 ... Air-cooling auxiliary device, 11 ... Container, 111 ... Water storage tank, 12 ... Nozzle, 13 ... Pump, 131 ... Water pressure adjustment mechanism, 14 ... Copper tube, 15 ... Piping, 16 ... Switching mechanism, 161 ... Floating body, 162 ... Valve , 17 ... member, 18 ... sodium hypochlorite addition mechanism, 181 ... sensor, 182 ... instrument, 183 ... control device, 19 ... sodium polyphosphate addition mechanism, 191 ... sensor, 192 ... instrument, 193 ... control device, 194 ... Mixer, raindrop sensor ... 201

Claims (10)

A container for storing rainwater;
A switching means for selectively passing either rainwater supplied from the container and clean water supplied from the water supply,
One or more nozzles that spray liquid in a mist form;
Fixing means for fixing each of the one or more nozzles so that the liquid ejected from the nozzles reaches the cooling fins of the condenser of the air cooling device;
An air-cooling auxiliary device comprising: a pump that pressurizes rainwater supplied from the container or water supplied from the water supply via the switching unit and supplies the pressurized rainwater or water to the nozzle. The switching means is
A floating body that receives buoyancy upward by water continuous with the surface of the rainwater in the container;
In a state where the vertical position of the floating body is equal to or higher than a predetermined position, the rainwater supplied from the container is allowed to pass but the water supplied from the water supply is not allowed to pass, and the vertical position of the floating body is higher than the predetermined position. The air-cooling auxiliary device according to claim 1, further comprising: a valve that allows the rainwater supplied from the container to pass through without passing through the water supplied from the water supply. A sensor for detecting that the level of rainwater in the container is equal to or higher than a predetermined position;
The switching means allows the rainwater supplied from the container to pass therethrough while the rainwater level in the container is detected by the sensor to be equal to or higher than the predetermined position. Water that is supplied from the water supply without allowing the rainwater supplied from the container to pass while the water level of the rainwater in the container is detected to be lower than the predetermined position by the sensor. The air-cooling auxiliary device according to claim 1, further comprising a valve that allows the air to pass therethrough. A water pressure adjusting means for adjusting a water pressure of rain water or clean water supplied to the nozzle so that rain water or clean water ejected from the nozzle reaches the cooling fin as particles having a particle size within a predetermined range; The air-cooling auxiliary device according to any one of claims 1 to 3. The pipe that forms the flow path of rainwater from the container to the nozzle and the pipe that forms the flow path of clean water from the water supply to the nozzle are at least a copper tube. The air-cooling auxiliary device described in 1. It has a raindrop sensor that detects raindrops when it rains,
The air cooling auxiliary device according to any one of claims 1 to 5, wherein the pump does not supply pressurized rainwater or clean water to the nozzle while the raindrop sensor detects raindrops. 7. A means for adding sodium hypochlorite to rainwater stored in the container so that the rainwater stored in the container contains sodium hypochlorite at a concentration within a predetermined range. The air-cooling assistance apparatus in any one of. The apparatus according to any one of claims 1 to 7, further comprising means for adding sodium polyphosphate to the water supplied from the water supply so that the water discharged from the nozzle contains sodium polyphosphate at a concentration within a predetermined range. The air-cooling auxiliary device according to crab. The rainwater contained in the container so that the rainwater contained in the container provided in the air-cooling auxiliary device according to any one of claims 1 to 6 contains sodium hypochlorite at a concentration within a predetermined range. A method for assisting air cooling, comprising the step of adding sodium hypochlorite. 7. With respect to the water supplied from the water supply so that the water discharged from the nozzle provided in the air-cooling auxiliary device according to claim 1 contains sodium polyphosphate at a concentration within a predetermined range. A method of assisting air cooling comprising the step of adding sodium polyphosphate.