JP2007327666A - Drainage water evaporating device for cooler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage water evaporating device for a cooler free from failure and capable of significantly saving power consumption. <P>SOLUTION: In this cooler, a refrigerant is circulated by pressure-feeding the refrigerant from an evaporator 4 to a condenser 6 through a conductor 5 by a compressor 3, and the air cooled by the evaporator 4 is distributed by a first fan 11. The cooler comprises a porous water absorbing body 30 absorbing the drainage water D generated in the evaporator 4, and a second fan 12 for introducing and guiding the outside air to the condenser 6 to cool the condenser 6, and guiding the warm air of which a temperature is raised through the condenser 6, to the water absorbing body 30, and the water absorbing body 30 is constituted by stacking a number of corrugated thin plate-shaped water absorbing elements 33 in a second direction Y approximately orthogonal to a first direction X of the flow of warm air in the water absorbing body 30, and provided with a number of vent holes 34 for making the warm air pass along the first direction X of the flow of warm air. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drain water evaporator for evaporating and treating drain water (drainage) discharged from a cooling device (cooler) for a sealed casing in which a control panel, OA equipment, and the like are mainly housed.

  2. Description of the Related Art Conventionally, a cooling device that cools the periphery of a refrigerant evaporator by circulating the refrigerant by pumping the refrigerant from the refrigerant evaporator to a radiator via a conduit by a compressor is known. In this type of cooling device, since the air around the refrigerant evaporator is condensed, it is necessary to drain the condensed water. However, since the control panel is usually installed indoors, unlike a home-use cooler, plumbing work becomes significant when a drain pipe is provided and drained to the outside.

  Therefore, although a method for evaporating drain water using the exhaust heat of the refrigerant evaporator is also employed in a small cooling device, such a method cannot perform wastewater treatment of a large cooling device in a capacitive manner. . For example, a large cooling device requires a waste water treatment of 1 liter or more per hour.

As a method for improving the wastewater treatment capacity, the applicant has applied for the inventions of Patent Documents 1 and 2 below.
Japanese Patent Laid-Open No. 10-73365 (FIG. 1) JP-A-2004-125351 (abstract)

  The invention of Patent Document 1 includes a flip-up machine that splashes drain water and splashes drain water toward an electric heating rod. Since the flip-up device splashes drain water with a motor, the motor is submerged or water is submerged from the shaft of the flip-up device, which causes a failure.

  In the invention of Patent Document 2, since drain water is evaporated by a heater, power (energy) is wasted.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a drain water evaporator for a cooler that is free from the risk of failure and that can significantly reduce power consumption.

  In the cooler drain water evaporation apparatus of the present invention, the refrigerant is circulated by pumping the refrigerant from the evaporator through the conduit to the condenser by the compressor, and the air cooled by the evaporator is blown by the first fan. A porous water absorbing body that absorbs drain water generated by the evaporator, and cools the condenser by introducing outside air and cooling the condenser with the outside air, and warm air heated through the condenser to the water absorbing body. A second fan that guides the water absorbing body, wherein a plurality of corrugated thin plate-like water absorbing elements are laminated in a second direction substantially perpendicular to the first direction in which the warm air flows through the water absorbing body, A number of air holes through which the warm air passes are formed along a first direction in which the warm air flows.

According to the present invention, the drain water is absorbed by the water absorbing element of the water absorbing body and comes into contact with the warm air heated by the condenser. Here, since the water absorbent body is formed by laminating thin water absorbent elements, the surface area is large, and thus a large amount of drain water can be evaporated.
And since the water absorption element is a waveform, the volume which can absorb water becomes large.
On the other hand, since the warm air is heated by cooling the condenser, the exhaust heat can be used effectively and the temperature of the exhausted air also decreases.
Further, since a driving unit such as a pump is not required, the cause of failure is reduced.

  In a preferred embodiment of the present invention, the apparatus further comprises a drain pan for temporarily storing drain water generated in the evaporator, and the drain pan stores the drain water at a lower pressure by the water pressure of the drain water when a predetermined amount of drain water is accumulated. A plurality of holes to be dropped on the body are formed in the drain pan.

In this embodiment, since the drain water in the drain pan is dropped downward by the water pressure of the drain water, the drain water is dropped from the plurality of holes to the lower water absorber. Therefore, there is little possibility of causing a situation in which drain water is absorbed only in a part of the water absorbing body and drain water is not absorbed in the remaining part of the water absorbing body.
That is, since the drain water is uniformly absorbed by the water absorbing body and evaporated, the drain water can be efficiently evaporated.

  In a further preferred embodiment of the present invention, the housing is partitioned into a first chamber and a second chamber by a partition wall, the evaporator and the first fan are accommodated in the first chamber, and the second chamber is The compressor, the condenser, and the second fan are accommodated, the drain pan is provided below the evaporator of the first chamber, and the water absorbing body is disposed further below the drain pan.

  In this case, it is easy to guide drain water from the drain pan to the water absorption body, and the entire cooler is high and the planar area is small, so the installation area is small when installed in an office building room. Become.

Embodiments of the present invention will be described below with reference to the drawings.
First, the cooling system using the server rack cooler will be briefly described.
FIG. 1 shows a general O.D. A. FIG. 2 shows a schematic configuration diagram of a cooler for a control or control panel.
As shown in FIG. 1, the compressor 3 pumps the refrigerant that has become a gas in the evaporator 4 to the condenser 6 through the conduit 5, and further pumps the refrigerant from the condenser 6 to the expansion valve 7 for circulation. Let At this time, the refrigerant gradually liquefies in the condenser 6 and the expansion valve 7. The expansion valve 7 is composed of a very thin tube indicated by a broken line. The refrigerant exits from the expansion valve 7, becomes a low pressure in a relatively thick pipe in the evaporator 4, and vaporizes again, thereby taking away the heat around the evaporator 4 and lowering the ambient temperature.

  The casing 8 is partitioned into a first chamber 9 and a second chamber 10 by a partition wall 2. The first chamber 9 accommodates the evaporator 4 and the first fan 11. On the other hand, the compressor 3, the condenser 6 and the second fan 12 are accommodated in the second chamber 10.

Therefore, when the warm air in the server rack (not shown) is taken into the first chamber 9 from the take-in hole by the first fan 11 and passes through the evaporator 4, the warm air is cooled by the evaporator 4. Cold air is sent into the server rack. On the other hand, in the condenser 6 provided in the second chamber 10, the refrigerant is compressed and becomes high temperature, while the second fan 12 allows the outside air to pass through the condenser 6 to reduce the temperature of the refrigerant. ing.
1 is a general O.D. A. It is a schematic block diagram of the air conditioner etc., and does not limit arrangement | positioning etc. of each apparatus. For example, the first chamber 9 may be located in the upper part of the second chamber 10 or may be located in the lower part.

FIG. 2 shows a cooler for the server rack.
In FIG. 2, in the first chamber 9, outside air A <b> 1 is taken into the first chamber 9 from the intake hole 9 a by the first fan 11, is cooled by contacting the evaporator 4, and the cooling air C is ducted. 100 is introduced into a server rack (not shown). A first drain pan 21 is disposed below the evaporator 4 in the first chamber 9. The first drain pan 21 receives the drain water D generated by cooling the outside air A1 with the evaporator 4. The drain water D flows into the lower second drain pan 22 and is temporarily stored in the second drain pan 22.

  The second drain pan 22 has a large number of dripping holes 24 formed in the bottom plate 25. When the drain water D is temporarily stored in the second drain pan 22 and accumulated in a predetermined amount, the drain water D drops from the dripping hole 24 due to the water pressure of the drain water D. That is, the dripping hole 24 has a minute hole diameter, and therefore, the drain water D does not drip from the dripping hole 24 of the second drain pan 22 until a predetermined water pressure is applied. Thereby, the drain water D is dripped substantially uniformly downward from the many dripping holes 24.

  A water absorber 30 is disposed below the second drain pan 22, and the drain water D dripped from the dripping hole 24 of the second drain pan 22 soaks into the water absorber 30 from the upper surface 31 of the water absorber 30.

  In the second chamber 10, the outside air A 2 is taken into the second chamber 10 by the second fan 12, and the warm air A 3 heated by cooling the radiator such as the compressor 3 and / or the condenser 6 is heated. It passes through the water absorber 30 and is discharged to the outside of the housing 8 through the exhaust hole 10a.

When the warm air A3 passes through the water absorbing body 30, the drain water D absorbed by the water absorbing body 30 evaporates and is discharged from the exhaust hole 10a together with the warm air A3. Therefore, there is no need to drain the drain water D.
A third drain pan 23 may be provided below the water absorber 30.

Next, a detailed structure of the water absorbing body 30 will be described.
In FIG. 3, the water absorber 30 is held by a U-shaped frame 32.
The water absorbing body 30 is formed by laminating a plurality of thin plate-like water absorbing elements 33 having water absorption. The water-absorbing element 33 is corrugated, and an infinite number of air holes 34 are formed between the water-absorbing elements 33 and 33.

  The corrugated water absorbing element 33 is stacked in a second direction Y orthogonal to the first direction X through which the warm air A3 passes. Accordingly, the warm air A3 is discharged from the exhaust hole 10a (FIG. 2) through the vent hole 34, and the drain water D soaked into the water absorbing element 33 of the water absorber 30 evaporates due to the flow of the warm air A3. Slightly cooled.

  The material of the water-absorbing element 33 is not particularly limited as long as it is water-absorbing, shape-retaining, and moldable. For example, non-woven fabric or paper, or those having ceramic fine powder attached to these materials. Can be used.

  The corrugated shape of the water-absorbing element 33 is not particularly limited as long as it is a shape that can form the air holes 34 through which air passes in the first direction X when the water-absorbing elements 33 are stacked. As the shape of the waveform of the water absorbing element 33, it is sufficient that the waveform is in one direction or two directions. That is, the water absorbing element 33 may have a waveform in both the third direction Z and the first direction X orthogonal to the first direction X and the second direction Y, or the third direction Z It may be a waveform only.

  Further, it may be a waveform along a smooth substantially sinusoidal curve like a corrugated cardboard, or a waveform like a rectangular wave. That is, the water absorbing body 30 may be formed in a porous honeycomb shape that forms the air holes 34 through which the warm air A3 passes.

  Further, the water absorbing element 33 and another thin flat water absorbing element may be alternately laminated to form the air hole 34.

  Further, the drain water D may be stored in a drain pan below the water absorber 30 and the drain water D may be sucked up from the drain pan below the water absorber 30.

4 (a), (b), (c) and (d) show a second embodiment.
As shown in these drawings, the drain water D (FIG. 2) drained from the first drain pan 21 may be guided to the water absorber 30 by the hose H.

  The present invention relates to O.D. A. It can be used for a drain water evaporator of a cooler for use.

General or conventional O.D. A. It is a schematic block diagram which shows the air conditioner. O. according to Example 1 of the present invention. A. It is a schematic block diagram which shows the air conditioner. It is a perspective view which shows an example of a water absorption body. O. according to Example 2. A. It is the left view which shows the air conditioner, the front view, the right view, and the rear view.

Explanation of symbols

2: partition wall 3: compressor 4: evaporator 5: conduit 6: condenser 8: housing 9: first chamber 10: second chamber 11: first fan 12: second fan 22: (second) drain pan 24: (Drip) hole 30: Water absorption body 33: Water absorption element X: 1st direction Y: 2nd direction

Claims (3)

In the cooler that circulates the refrigerant by pumping the refrigerant from the evaporator to the condenser through a conduit and blows the air cooled by the evaporator by the first fan,
A porous water absorbing body for absorbing drain water generated in the evaporator;
A second fan that introduces outside air and cools the condenser with the outside air and guides warm air heated through the condenser to the water absorber,
The water absorbing body has a plurality of corrugated thin plate-like water absorbing elements stacked in a second direction substantially perpendicular to the first direction in which the warm air flows in the water absorbing body, and in the first direction in which the warm air flows. A drain water evaporation device for a cooler, wherein a plurality of vent holes through which the warm air passes are formed. In Claim 1, further comprising a drain pan for temporarily storing drain water generated in the evaporator,
The drain pan is a drain water evaporator for a cooler in which a plurality of holes are formed in the drain pan so that when a predetermined amount of drain water is accumulated, the drain water is dropped into the water absorbent body by the pressure of the drain water. The housing according to claim 2, wherein the casing is partitioned into a first chamber and a second chamber by a partition wall, the evaporator and the first fan are accommodated in the first chamber, the compressor in the second chamber, Contains a condenser and a second fan;
A drain water evaporator for a cooler, wherein the drain pan is provided below the evaporator of the first chamber, and the water absorber is disposed further below the drain pan.

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