JP2018004205A - Auxiliary cooling device for condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve cooling efficiency of a condenser by delivering naturally cooled air to the condenser without requiring running cost such as the electric bill and city water bill.SOLUTION: An air cooling device 40 is disposed being close to a windward side of a condenser 3 of an outdoor unit 1 installed outdoors. The air cooling device 40 is constituted by: a plurality of air cooling bodies 33 each of which has a cylindrical shape, and in each of which one end side serves as an air suction port 34 and the other end side serves as a discharge port 35 from which air is discharged and whose diameter is smaller than that of the suction port 34; and a flat plate-like support body 36 in which a large number of the air cooling bodies 33 are disposed. Thereby, as an auxiliary cooling device 10 is not used, the electric bill, the water bill and the like necessary for the auxiliary cooling device 10 can be eliminated, and the running cost becomes zero.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an auxiliary cooling device for an air-cooled condenser used in air-conditioning, refrigeration, refrigeration equipment, and the like, and more specifically, air sucked into the condenser of an air conditioner when the outside air temperature is high such as in summer. It is related with the auxiliary | assistant cooling device of the condenser for cooling the temperature of this.

Condensers used in refrigeration cycles such as air conditioning, refrigeration, and refrigeration systems are either water-cooled or air-cooled, depending on the heat exchange method. The room temperature can be kept relatively stable, but there is a problem that the structure of the apparatus is complicated and expensive, and maintenance is expensive.
On the other hand, the air-cooled type is inexpensive because it has a simple apparatus structure, but there is a problem that the cooling efficiency inside the room and the room is lowered at high temperatures in summer. As an auxiliary cooling device for an air-cooled condenser that compensates for this problem, for example, as shown in Patent Document 1, there is known an auxiliary cooling device that improves the cooling efficiency by spraying water directly on the radiating fins of the condenser. Yes.

JP-A-10-213361

  The auxiliary cooling device described in Patent Document 1 is for spraying fine granular or mist-like water almost uniformly by spray nozzles on the heat radiation fins of the condenser of the air-conditioning outdoor unit. The cooling fins are cooled by the above.

  However, although this patent document 1 improves the cooling efficiency by spraying tap water directly onto the heat dissipating fins of the condenser at a high temperature in summer, the surface of the heat dissipating fins can be scaled / scaled while the operation is continued for a long time. Therefore, there are problems that the heat exchange efficiency is lowered during air-cooling operation and the radiating fins are corroded. In particular, the radiating fins corrode and deteriorate over time, and it is necessary to replace the radiating fins or the condenser itself in 5 to 6 years.

  As an auxiliary cooling device for an air-cooled condenser that compensates for this problem, for example, Patent Document 2 shown below can be cited.

Japanese Patent Laid-Open No. 2004-3806

In the auxiliary cooling device shown in Patent Document 2, a cooling mat is installed in the vicinity of the heat dissipating fin of the condenser at a certain distance from the heat dissipating fin, and cooling water is allowed to flow down to the cooling mat to cool the intake air of the condenser. It is what I did.
However, since the cooling mat used in Patent Document 2 is a fibrous one, there are problems such as low cooling efficiency in structure and an increase in pressure loss due to clogging.

  As an example of solving the problem of Patent Document 2, Patent Document 3 shown below can be cited as an example.

JP 2009-236370 A

  As shown in FIG. 12, the auxiliary cooling device described in Patent Document 3 has a filler 101 disposed on the upstream side of the suction air of the air-cooled condenser 100, and the filler 101 is It has a predetermined thickness in the direction of the intake air. Then, water is poured into the filler 101 from above, and the water flowing out from the lower portion of the filler 101 is collected in the collection container 102.

  The water collected in the collection container 102 is pumped up to the upper part of the filler 101 through the water supply pipe 104 by the pump 103, and the pumped water passes through a plurality of drain ports provided in the water supply container 105, The filler 101 is made to flow uniformly from above to the inside. Water is allowed to flow down in the filler 101 and the water in the filler 101 is evaporated by the intake air of the condenser 100, whereby the intake air is cooled by the action of heat of vaporization.

  Moreover, the following patent document 4 is mentioned as what was filed by the present applicant.

Utility Model Registration No. 3178038 (issue date: August 30, 2012)

The patent document 4 has a configuration as shown in FIGS. FIG. 13 shows a schematic configuration of the condenser air cooling device when the auxiliary cooling device 10 is installed on the upstream side of the intake air of the outdoor unit 1, and FIG. 14 is a schematic view seen from the direction A in FIG. A front view is shown.
Since the outdoor unit 1 has a well-known configuration, a detailed description is omitted, but a condenser 3 is disposed on one side of the case 2 of the outdoor unit 1, and a cooling fan 4 is provided on the upper side of the case 2. Yes. In the illustrated example, the cooling fan 4 is provided on the upper portion of the case 2, but the cooling fan 4 may be provided at a position facing the condenser 3.

  The auxiliary cooling device 10 includes a vaporization type air cooling device 11, a water recovery device 13 that collects water drained from the vaporization type air cooling device 11 via the drain pipe 12, and a water recovery device 13 that stores the water. A water supply pipe 15 that supplies water to the vaporization type air cooling device 11 through a pump 14, a water supply device 16 that supplies water from the water supply pipe 15 to the upper surface of the vaporization type air cooling device 11, and the like. Yes.

  In FIG. 13, the water supply pipe 15 is drawn on the right side of the outdoor unit 1, but the actual construction is arranged on the left side of the outdoor unit 1 and piped on the side surface of the vaporization type air cooling device 11. . However, the vaporization type air cooling device 11 of the auxiliary cooling device 10 is arranged in the vicinity of the outdoor unit 1 on the upstream side of the intake air of the condenser 3, but the other water recovery device 13 and the water supply pipe 15 are optional. Placed and constructed at

  As shown in FIG. 14, the vaporization type air cooling device 11 is substantially the same as or slightly larger than the size of the condenser 3, and the vaporization air cooling device 11 has an air suction surface of the condenser 3. It is the size to cover.

FIG. 15 shows a well-known refrigeration cycle. The refrigeration cycle includes a condenser 3, a compressor 5, an evaporator 6 in an indoor unit installed indoors, an expansion valve 7, and the like. Connected.
During the cooling operation, the refrigerant in the refrigerant pipe 8 is compressed by the compressor 5, and the refrigerant becomes a high-temperature gas. The refrigerant 3 is kept at a constant temperature by the latent heat of water when the condenser 3 is vaporized by the cooling fan 4. The refrigerant gas is liquefied by being lowered. The refrigerant pressure is suddenly lowered by the expansion valve 7 and is cooled by the latent heat of the refrigerant gas. The temperature of the room is exchanged by the evaporator 6, and the cool air is sent from the indoor unit to the room for cooling. .

Here, the water in the water recovery device 13 is circulated to the vaporization type air cooling device 11 through the pump 14 and the water supply pipe 15, and vaporization is performed using the latent heat generated when water vaporizes in the vaporization type air cooling device 11. The temperature of the air sucked in the type air cooling device 11 is lowered, and the condenser 3 is cooled with the lowered air.
The water flowing down in the vaporization type air cooling device 11 is recovered by the water recovery device 13 through the drain pipe 12.

As shown in FIG. 13, makeup water such as tap water is supplied to the water recovery device 13 from a makeup water pipe 20, and a float valve 21 is interposed in the makeup water pipe 20. The float valve 21 is a valve that opens and closes when the float 22 floating on the liquid surface moves in the vertical direction according to the height of the liquid surface.
When the liquid level of the water recovery device 13 becomes a predetermined height or less, the float 22 descends, the float valve 21 opens, and water is supplied from the makeup water pipe 20. Further, when makeup water is supplied and the liquid level reaches a predetermined height or more, the float 22 rises, the float valve 21 is closed, and the supply of water from the makeup water pipe 20 is stopped.

  The water supply device 16 that circulates water from the water recovery device 13 to the vaporization type air cooling device 11 and supplies the water is approximately the same length as the width direction of the vaporization type air cooling device 11. For example, a plurality of holes are drilled in a pipe. In addition, water is dropped or sprinkled on the upper surface of the vaporization type air cooling device 11 from these holes.

  As shown in FIG. 14, a drainage basin 25 is provided at the lower part of the vaporization type air cooling device 11. A drainage pipe 12 is connected to the end of the drainage basin 25, and the vaporization type air cooling device 11 The water that has flowed down is recovered by the water recovery device 13.

Next, the configuration of the vaporization type air cooling device 11 will be described. As shown in FIG. 13, the vaporization type air cooling device 11 includes a water retaining material 30 that is sucked and discharged as indicated by an arrow. The water retaining material 30 is generally called a cooling pad (cooling pad), and is made of a paper material obtained by processing wood chips, polyethylene, and glass fiber, and has been commercially available.
Moreover, this cooling pad is mainly used for lowering the temperature of barns and horticultural facilities, and in Japan, it is widely used in windowless barns and greenhouses for horticulture.

16 to 19 show how to make the water retaining material 30, and the structure of the water retaining material 30 will be described so that the structure of the water retaining material 30 can be easily understood. In FIG. 16, corrugated corrugated sheets 51 are formed by being laminated in multiple layers, and each corrugated sheet 51 is made of strongly processed paper. In addition, the groove | channel 52 formed in the waveform shape of the corrugated board material 51 and formed continuously becomes an air flow path.
The upper and lower corrugated sheets 51 are alternately combined at an arbitrary angle, for example, around 30 °, with respect to the intake direction, and the lower corrugation of the upper corrugated sheet 51 and the upper apex of the wave of the lower corrugated sheet 51 are combined. Are crossed, that is, black circles (●) shown in FIG. 17 are bonded with an adhesive, and the upper and lower corrugated plate materials 51 are bonded and fixed.

  A large number of corrugated sheet materials 51 are laminated in a water-retaining material body 55 shown in FIG. 18, and the water-retaining material body 55 is cut with a cutter or the like in the α direction of the arrow in the drawing, so that an arbitrary thickness can be obtained. A water retaining material piece 56 is obtained. And as shown in FIG. 19, the water-retaining material 30 of arbitrary magnitude | sizes can be formed by cut | disconnecting with a cutter etc. as shown to the arrow β and (gamma) of the vertical direction and a horizontal direction.

  In addition, the water retaining material 30 can be easily manufactured in any thickness and size, and when the corrugated sheet material 51 is laminated up and down, the corrugated sheet material 51 is inclined and laminated at an arbitrary angle. The inclination angle of each groove 52 of the corrugated sheet material 51 with respect to the intake direction of outside air can also be arbitrarily formed. Moreover, as shown in FIG. 16, the width dimension L and the height dimension H of the groove | channel 52 can be manufactured arbitrarily.

FIG. 20 shows an enlarged cross-sectional view of a main part of the water retention material 30 manufactured as described above. The condenser 3 is located on the right side of the water retention material 30, and the air is retained from the left side as indicated by an arrow. The groove 52 (hereinafter, this groove is referred to as “air flow passage”).
For example, the air flow passage 52 shown by the solid line rises with an inclination of 30 °, is adjacent to the air flow passage 52 shown by the solid line in the width direction, and the air flow passage 52 shown by the broken line is For example, it is configured to descend with an inclination of 30 °. These air flow passages 52 are formed continuously in the vertical direction and the horizontal direction of the water retaining material 30.

  Water from the water supply device 16 is dripped onto the water retaining material 30 and the water retaining material 30 itself absorbs water to become wet. At the same time, water flows down the surface of the water retaining material 30, that is, the front and back surfaces of each air flow passage 52. Then, the water that has not been absorbed by the water retention material 30 flows along the surface of the water retention material 30 to the water recovery device 13 and is recovered.

In particular, as described above as the material of the water retaining material 30, since it is composed of paper quality obtained by processing wood chips, polyethylene, and glass fiber, the water retaining material 30 itself absorbs water and becomes wet, and the water retaining material The temperature of the air sucked into the water retaining material 30 side can be lowered by the latent heat when vaporizing from 30. Thereby, the condenser 3 can be cooled efficiently.
That is, by circulating water through the vaporization type air cooling device 11, the suction temperature of the outdoor unit 1 passing through the vaporization type air cooling device 11 is lower than the outside air temperature due to vaporization latent heat, and the cooling capacity is improved by the humidification effect. Can be planned.

Thus, conventionally, by circulating water through the vaporization type air cooling device 11 disposed on the air suction side of the condenser 3 of the outdoor unit 1, the makeup water is only the amount of the evaporated water, I try to suppress the rise.
Moreover, since the power consumption of the whole air conditioner can be suppressed by cooling the condenser 3, the electricity cost of the pump 14 for circulating water is very small, and the power consumption as a whole is reduced. It is suppressed.

  In Patent Document 2 to Patent Document 4, a water retaining material in which water is moistened is arranged on the windward side of the outdoor unit, and air cooled by the water retaining material is sent to the outdoor unit so as to improve the cooling efficiency of the condenser. I have to.

  However, when the auxiliary cooling device 10 is used as in Patent Document 4, since the pump 14 is used to circulate water, an electricity bill for driving the pump 14 is applied, and the water is circulated. It is necessary to replenish the water by the amount of water evaporated at the time. Therefore, there is a problem that running costs such as electricity bills and water bills are required.

The present invention is provided in view of the above-described problems, and provides an auxiliary cooling device for a condenser having at least the following objects.
(1) Improve the cooling efficiency of the condenser by sending naturally cooled air to the condenser without incurring running costs such as electricity and water bills.
(2) When running costs such as electricity bills and water bills are applied as in the conventional case, the cooling efficiency of the condenser is improved by further cooling the air sent to the condenser.

Therefore, in the auxiliary cooling device for a condenser according to claim 1 of the present invention, an air cooling device 40 is disposed in the vicinity of the windward side of the condenser 3 of the outdoor unit 1 installed outdoors,
The air cooling device 40 includes:
A plurality of air cooling bodies 33 each having a discharge port 35 which is cylindrical and has one end side as an air suction port 34 and the other end side being discharged with a diameter smaller than the diameter of the suction port 34;
It is characterized by comprising a flat plate-like support 36 on which a large number of the air cooling bodies 33 are arranged.

  In the auxiliary cooling device for a condenser according to claim 2, the second air cooling device 40 having the same configuration as that of the air cooling device 40 is disposed in the wind of the air cooling device 40 arranged close to the condenser 3. The second air cooling device 40 is arranged on the upper side.

  The auxiliary cooling device for a condenser according to claim 3 is characterized in that the air cooling device 40 is arranged in the reverse direction in winter.

In the auxiliary cooling device for a condenser according to claim 4, the water retaining material 30 is disposed close to the windward side of the condenser 3 of the outdoor unit 1 installed outdoors,
The water retaining material 30 is wetted by water dripped from above, and lowers the temperature of the air taken in by latent heat when vaporizing,
The condenser 3 is cooled by the air whose temperature has decreased,
The water flowing down from the water retaining material 30 is recovered by the water recovery device 13,
An auxiliary cooling device for a condenser in which water in the water recovery device 13 is driven to circulate to the water retaining material 30 through a water supply pipe 15 by driving a pump 14,
An air cooling device 40 is disposed adjacent to the windward side of the water retaining material 30,
The air cooling device 40 includes:
A plurality of air cooling bodies 33 each having a discharge port 35 which is cylindrical and has one end side as an air suction port 34 and the other end side being discharged with a diameter smaller than the diameter of the suction port 34;
It is characterized by comprising a flat plate-like support 36 on which a large number of the air cooling bodies 33 are arranged.

  In the auxiliary cooling device for a condenser according to claim 5, the air cooling device 40 is disposed between the windward side of the condenser 3 of the outdoor unit 1 and the leeward side of the water retaining material 30. It is characterized by.

  The auxiliary cooling device for a condenser according to claim 6 is characterized in that the air cooling device 40 is arranged in the reverse direction in winter.

  According to the auxiliary cooling device for a condenser according to claim 1 of the present invention, the air cooling device 40 is disposed in close proximity to the windward side of the condenser 3 of the outdoor unit 1 installed outdoors, and the air cooling is performed. The device 40 has a cylindrical shape, and has one end side serving as an air suction port 34, and the other end side is provided with a plurality of air cooling bodies 33 each having a discharge port 35 having a diameter smaller than the diameter of the suction port 34. And a plate-like support 36 on which a large number of the air cooling bodies 33 are arranged, and the auxiliary cooling device 10 is not used. The running cost can be reduced to zero. Moreover, since water was circulated in the conventional auxiliary cooling device 10, the splash of water was applied to the condenser 3 or the like. However, in this embodiment, since water is not used, the radiating fin is not corroded. .

  According to the auxiliary cooling device for a condenser according to claim 2, the air cooling device 40 in which the second air cooling device 40 having the same configuration as that of the air cooling device 40 is disposed close to the condenser 3. Since the second air cooling device 40 is disposed on the windward side of the engine, in addition to the effect of the first aspect, the temperature of the air sent to the condenser 3 is further reduced to increase the cooling effect of the condenser 3. This can be further improved.

  According to the condenser auxiliary cooling device according to claim 3, the air cooling device 40 is arranged in the reverse direction in the winter, and the discharge port 35 of the air cooling body 33 of the air cooling device 40. By allowing air to flow in and discharging the air flowing in from the suction port 34, the low-temperature air sucked in from the small-diameter discharge port 35 can be rapidly diffused and the temperature of the air discharged from the suction port 34 can be raised. . Therefore, in winter, the condenser 3 can be warmed and the condenser 3 can be prevented from being overcooled. Thereby, it is possible to eliminate the defrosting operation or shorten the time of the defrosting operation to increase the time of the indoor heating operation.

  According to the condenser auxiliary cooling device according to claim 4, the air cooling device 40 is disposed in proximity to the windward side of the water retaining material 30, and the air cooling device 40 has a cylindrical shape and has one end. The air suction port 34 is on the side, and the air cooling body 33 includes a plurality of air cooling bodies 33 each having a discharge port 35 that is smaller than the diameter of the suction port 34 from which air is discharged on the other end side. Since the air cooled by the air cooling device 40 is sent to the water retaining material 30 of the auxiliary cooling device 10, the air sent to the water retaining material 30 is outside air temperature. The cooled air is sent, and the air further cooled by the water retaining material 30 is sent to the condenser 3. Therefore, the cooling efficiency of the condenser can be further improved. Further, since the air cooling device 40 does not require a running cost, the running cost is only the operating cost of the auxiliary cooling device 10, and the cooling efficiency of the condenser can be further improved without increasing the running cost.

  According to the condenser auxiliary cooling device of claim 5, the air cooling device 40 is disposed between the windward side of the condenser 3 of the outdoor unit 1 and the leeward side of the water retaining material 30. Therefore, in addition to the effect of the fourth aspect, the splash of water from the water retaining material 30 is not applied to the condenser 3 or the like, and therefore the radiating fin is not corroded. Moreover, since the air cooling device 40 is arranged between the water retaining material 30 and the condenser 3, hot air in the summer is prevented from entering the condenser 3, and the cooling efficiency of the condenser 3 is not reduced.

  According to the condenser auxiliary cooling device of the sixth aspect, the air cooling device 40 is disposed in the reverse direction in the winter, and the discharge port 35 of the air cooling body 33 of the air cooling device 40 is provided. By allowing air to flow in and discharging the air flowing in from the suction port 34, the low-temperature air sucked in from the small-diameter discharge port 35 can be rapidly diffused and the temperature of the air discharged from the suction port 34 can be raised. . Therefore, in winter, the condenser 3 can be warmed and the condenser 3 can be prevented from being overcooled. Thereby, it is possible to eliminate the defrosting operation or shorten the time of the defrosting operation to increase the time of the indoor heating operation.

It is a perspective view of the air cooling body in the 1st Embodiment of this invention. It is sectional drawing of the air cooling body in the 1st Embodiment of this invention. It is explanatory drawing of the air cooling body in the 1st Embodiment of this invention. It is explanatory drawing of the air cooling device in the 1st Embodiment of this invention. It is a front view of the air cooling device in a 1st embodiment of the present invention. It is a rear view of the air cooling device in the 1st Embodiment of this invention. It is a side view of the air cooling device in a 1st embodiment of the present invention. It is explanatory drawing at the time of arrange | positioning an air cooling device in the windward side of the condenser in the 1st Embodiment of this invention. It is explanatory drawing at the time of arrange | positioning two steps | paragraphs of air-cooling apparatuses in the windward side of the condenser in the 1st Embodiment of this invention. It is explanatory drawing at the time of arrange | positioning an air cooling device in the windward side of the water retention material of the auxiliary | assistant cooling device in the 2nd Embodiment of this invention. It is explanatory drawing at the time of arrange | positioning the air-cooling apparatus in the 2nd Embodiment of this invention between a condenser and a water retention material. It is a schematic block diagram of the outdoor unit and auxiliary cooling device of a prior art example. It is a schematic block diagram of the outdoor unit and auxiliary cooling device of another conventional example. It is a front view of the auxiliary cooling device of another conventional example. It is a figure which shows a refrigerating cycle. It is explanatory drawing in the case of manufacturing a water retention material. It is explanatory drawing in the case of manufacturing a water retention material. It is explanatory drawing in the case of manufacturing a water retention material. It is explanatory drawing in the case of manufacturing a water retention material. It is a principal part expanded sectional view of a water retention material.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of an air cooling body 33 that naturally cools air. One side is a suction port 34 for sucking air, the other is made smaller in diameter than the suction port 34, and the air sucked from the suction port 34 is shown in FIG. The discharge port 35 is a discharge port.
The size of the air cooling body 33 is, for example, about the size of a commercially available plastic bottle, and the material is reduced in weight by using a plastic. This is because a large number of air cooling bodies 33 are arranged on the windward side of the condenser 3, and it is desirable that the weight of the air cooling body 33 be reduced.

  FIG. 2 is a cross-sectional view of the air cooling body 33, and the diameter of the discharge port 35 is preferably about 1/3 to 1/5 of the diameter of the suction port 34.

  FIG. 3 shows the flow of air in the air cooling body 33. The air cooling body 33 is arranged on the windward side of the condenser 3 as described above, and the air cooling body 33 is sucked by the cooling fan 4 of the outdoor unit 1. Air is sucked from the port 34, air is discharged from the discharge port 35, and the discharged air is sent to the condenser 3.

  As shown in FIG. 3, the air sucked from the suction port 34 of the air cooling body 33 is rapidly compressed on the discharge port 35 side, and the air discharged from the discharge port 35 is suddenly diffused to discharge the air Will be cooled.

FIG. 4 shows an explanatory diagram in the case where a large number of air cooling bodies 33 are arranged. A large number of holes 37 are perforated in the flat support 36, and the discharge ports 35 of the air cooling body 33 are formed in the holes 37. The air cooling body 33 is fixedly arranged on the support body 36 by press-fitting the portion. Here, the portion on the discharge port 35 side that is press-fitted into the hole 37 is referred to as a fixed portion 38.
The inner diameter of the hole 37 of the support 36 is slightly smaller than the outer diameter of the fixing portion 38 of the air cooling body 33, so that the fixing portion 38 of the air cooling body 33 can be easily pressed into the hole 37 of the supporting body 36. .

FIG. 5 shows a front view seen from the windward side when the air cooling body 33 is arranged in each hole 37 of the support 36, and FIG. 6 shows a rear view of the support 36 seen from the leeward side. FIG. 7 shows a side view of the support 36 when the air cooling body 33 is arranged. Here, when a large number of air cooling bodies 33 are arranged on the support body 36, the large number of air cooling bodies 33 and the support body 36 are referred to as an air cooling device 40.
The size of the support 36 of the air cooling device 40 is substantially the same as the size of the condenser 3 of the outdoor unit 1.

  In addition, although the air cooling body 33 is made into the cylindrical shape, a square cylinder shape may be sufficient and a cone shape may be sufficient.

FIG. 8 shows the case where it is arranged on the windward side of the condenser 3 of the outdoor unit 1. By sending the air cooled by the air cooling device 40 to the condenser 3, the condenser 3 is cooled and condensed. The cooling efficiency of the vessel can be improved.
Further, since the auxiliary cooling device 10 is not used, the running cost can be reduced to zero because the electricity bill, the water bill, etc. necessary for the auxiliary cooling device 10 are unnecessary. Moreover, since water was circulated in the conventional auxiliary cooling device 10, the splash of water was applied to the condenser 3 or the like. However, in this embodiment, since water is not used, the radiating fin is not corroded. .

FIG. 9 shows a case where the air cooling device 40 having the same configuration is further arranged on the windward side of the air cooling device 40 with respect to the embodiment of FIG.
In this embodiment, since the air cooling device 40 has a two-stage configuration, in addition to the effect of the embodiment shown in FIG. 8, the temperature of the air sent to the condenser 3 is further lowered to further increase the cooling efficiency of the condenser. Can be improved.

(Second Embodiment)
FIG. 10 shows a second embodiment, and in this embodiment, the air cooling device 40 is arranged in the conventional auxiliary cooling device 10. The configuration of the auxiliary cooling device 10 is the same as the conventional one, and the configuration of the air cooling device 40 is the same as that of the previous embodiment.

  In the case of FIG. 10, since the air cooled by the air cooling device 40 is sent to the water retaining material 30 of the auxiliary cooling device 10, the air cooled to the water retaining material 30 from the outside air temperature is sent. The air further cooled by the water retaining material 30 is sent to the condenser 3. Therefore, the cooling efficiency of the condenser can be further improved. Further, since the air cooling device 40 eliminates the running cost as described above, the running cost is only the operating cost of the auxiliary cooling device 10, and the cooling efficiency of the condenser can be further improved without increasing the running cost. it can.

FIG. 11 shows a case where the air cooling device 40 is arranged between the condenser 3 of the outdoor unit 1 and the water retaining material 30 of the auxiliary cooling device 10. In the present embodiment, in addition to the effects of the embodiment of FIG. 10, the splash of water from the water retaining material 30 does not reach the condenser 3 and the like, and therefore the radiating fins are not corroded.
Moreover, since the air cooling device 40 is arranged between the water retaining material 30 and the condenser 3, hot air in the summer is prevented from entering the condenser 3, and the cooling efficiency of the condenser 3 is not reduced.

In each of the above embodiments, the case of high temperature in summer is used, but in the case of winter, the air cooling device 40 may be disposed in the reverse direction. By letting air flow in from the discharge port 35 of the air cooling body 33 of the air cooling device 40 and discharging the air flowing in from the suction port 34, the low-temperature air sucked in from the small-diameter discharge port 35 is rapidly diffused and sucked in. The temperature of the air discharged from the mouth 34 can be raised.
Therefore, in winter, the condenser 3 can be warmed and the condenser 3 can be prevented from being overcooled. Thereby, it is possible to eliminate the defrosting operation or shorten the time of the defrosting operation to increase the time of the indoor heating operation.

1 Outdoor Unit 3 Condenser 13 Water Recovery Device 14 Pump 15 Water Supply Pipe 30 Water Retentive Material 33 Air Cooling Body 34 Suction Port 35 Discharge Port 36 Support Body 40 Air Cooling Device

Claims (6)

An air cooling device (40) is arranged close to the windward side of the condenser (3) of the outdoor unit (1) installed outdoors,
The air cooling device (40)
A plurality of air-cooling units, each having a cylindrical shape and having an air inlet (34) at one end and an outlet (35) having a diameter smaller than the diameter of the inlet (34) through which air is discharged at the other end. Body (33),
An auxiliary cooling device for a condenser, comprising a flat plate-like support (36) on which a large number of air cooling bodies (33) are arranged.   A second air cooling device (40) having the same configuration as that of the air cooling device (40) is disposed on the windward side of the air cooling device (40) disposed close to the condenser (3). The auxiliary cooling device for a condenser according to claim 1, further comprising an air cooling device (40).   The auxiliary cooling device for a condenser according to claim 1 or 2, wherein the air cooling device (40) is arranged in a reverse direction in winter. Providing a water retaining material (30) close to the windward side of the condenser (3) of the outdoor unit (1) installed outdoors,
The water retention material (30) is wetted by water dripped from above, and lowers the temperature of the air taken in by latent heat when vaporizing,
The condenser (3) is cooled by the air whose temperature has decreased,
The water flowing down from the water retaining material (30) is recovered by a water recovery device (13),
An auxiliary cooling device for a condenser in which water of the water recovery device (13) is circulated to the water retaining material (30) through a water supply pipe (15) by driving a pump (14),
An air cooling device (40) is disposed adjacent to the windward side of the water retaining material (30),
The air cooling device (40)
A plurality of air-cooling units, each having a cylindrical shape and having an air inlet (34) at one end and an outlet (35) having a diameter smaller than the diameter of the inlet (34) through which air is discharged at the other end. Body (33),
An auxiliary cooling device for a condenser, comprising a flat plate-like support (36) on which a large number of air cooling bodies (33) are arranged.   The air cooling device (40) is disposed between the windward side of the condenser (3) of the outdoor unit (1) and the leeward side of the water retaining material (30). 4. The auxiliary cooling device for a condenser according to 4.   The auxiliary cooling device for a condenser according to claim 4 or 5, wherein the air cooling device (40) is arranged in a reverse direction in winter.

Images