KR20150017517A - Evaporative Cooling Heat Exchange - Google Patents

Abstract

The present invention relates to an evaporative cooling heat exchanger comprising: a housing separately having a processing air inflow portion, a processing air supply portion, an upper humidified air inflow portion, and a lower humidified air discharge portion; and a spiral pipe installed in the housing. The present invention is separated into a processing air portion and a humidified air portion by the spiral pipe, and humidified water and humidified air move inside the spiral pipe while processing air moves outside the spiral pipe. Accordingly, the present invention can increase heat exchange cooling efficiency of the evaporative latent heat in maximum since the humidified water is spread out equally in general because of an increase of a heat transfer area and a change of an air moving passage by the spiral pipe.

Description

[0001] Evaporative Cooling Heat Exchange [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evaporative cooling heat exchanger using a spiral tube, and more particularly, to an evaporative cooling heat exchanger having an increased heat transfer area and improved heat exchange efficiency due to changes in an air flow path.

Generally, a cold heat source machine such as a refrigerator having a refrigeration cycle, a cooler, and a heat pump unit includes a compressor for compressing and transferring refrigerant gas, a condenser for condensing the refrigerant gas, and an evaporator for evaporating the refrigerant liquid to produce cold heat In order to complete the refrigeration cycle, heat absorbed by the evaporator and heat equivalent to the energy required to increase the pressure of the refrigerant gas to move the refrigerant gas to the compressor should be removed to the outside of the refrigeration cycle through the condenser.

Such a condenser includes an air cooled condenser having air as a cooling medium, an evaporative cooling condenser for exchanging heat by bringing air and cooling water as a cooling medium into contact with each other, and cooling water supplied from the cooling tower as a cooling medium It is divided into a water cooled condenser.

Further, an evaporative cooling type heat exchanger is applied to the condenser to cool the cooling fluid (cooling water, oils, air, etc.) or to condense the refrigerant gas.

However, the conventional evaporative cooling type heat exchanger has a limited heat transfer area, making it difficult to efficiently use energy.

Furthermore, due to seasonal changes due to climate change, it is expected that the usage time of electric air conditioner is expected to increase due to the increase of the electric air conditioner and the increase of the cooling period, and the energy saving due to the increase of energy consumption due to the increase of the technology, It is time when efficient use is necessary.

Accordingly, there is a demand for development of a highly efficient evaporative cooling heat exchanger which can reduce the cooling energy by using the latent heat of evaporation of water to cool the fluid and is safe and eco-friendly atmospheric pressure using natural air and water.

Korean Patent Publication No. 2006-0083498 (published on July 21, 2006)

SUMMARY OF THE INVENTION It is an object of the present invention to provide an evaporative cooling heat exchanger having an increased heat transfer area and improved heat exchange efficiency due to changes in an air flow path.

Another object of the present invention is to provide a highly efficient evaporative cooling heat exchanger that can cool a fluid flowing using latent heat of evaporation of water to reduce cooling energy and is safe and environmentally friendly using natural air and water at atmospheric pressure .

According to an aspect of the present invention, there is provided an evaporative cooling heat exchanger including a housing having a processing air inlet, a processing air inlet, an upper humidifying air inlet, and a lower humidifier; And a spiral tube installed in the housing, wherein the processing air and the humidifying air are separated by the spiral tube, and the humidifying water and the humidifying air flow into the spiral tube, and the treated air flows to the outside of the spiral tube Flow.

In addition, the treated air and the humidified air are not mixed with each other but flow in a non-contact manner, and the directions of the airflows of the flow paths are opposite to each other or cross each other.

In addition, the treated air is ventilated in the room, or mixed air of indoor air and outside air, or high-temperature dry air dehumidified by a dehumidifier, wherein the humidified air is added at the treated air supply unit , Or air that is ventilated in the room, or air that flows in from the outside.

Further, the humidifying water of the humidifier humidifying the humidifying air of the humidifying air portion is evaporated while uniformly wetting the inner wall of the spiral pipe while flowing downward by gravity.

In addition, a header is integrated at both ends of the spiral pipes to constitute a partial module, and the partial modules are assembled into one unit module.

In addition, the spiral tube is continuously disposed, and a space between the spiral tube and the spiral tube is formed in a long side and a short side to be inserted in a zigzag shape.

In addition, a wick is inserted into the spiral tube, and a humidifying water distributor for introducing the humidifying water to the inner wall of the spiral tube is inserted into the inlet of the spiral tube.

The inner wall of the spiral tube is characterized in that the humidifying water uniformly spreads on the inner wall by the antibacterial treatment and the hydrophilic treatment by the hydrophilic coating or the corrosion treatment.

In the humidifying air inflow section, an inlet header and a humidifier outlet are provided with an outlet header, and the inlet header and the outlet header are integrally formed by joining with a spiral pipe.

Further, the long side space or the short side space is formed of a heat-resistant synthetic resin or a non-iron flat plate, a wave, or a wavy shape.

In addition, the spiral tube is a continuously curved spiral tube having a circular or elliptical shape or a triangular, square, or polygonal cross-section.

The housing may be made of a synthetic resin or a material resistant to corrosion such as non-ferrous or stainless steel.

In addition, the humidifier for humidifying the humidifying water in the humidifying air is made of a non-ferrous material such as synthetic resin or aluminum, connected to the water supply pipe, and the humidifying water introduced is one of clean water or purified water.

The spacing between the spiral tube and the spiral tube is continuously arranged within 0.3 to 5 times the spiral tube diameter.

In addition, the exhaust header of the humidifier exhaust unit is divided into upper and lower parts, and an air induction fin is integrally formed on the inside and outside of the exhaust load header, and a drain port for discharging the non- Is provided.

According to the evaporative cooling heat exchanger of the present invention, the humidifying water is uniformly spread by the increase of the heat transfer area by the spiral tube and the change of the air flow path and the hydrophilic treatment of the inner wall of the spiral tube, There is an effect that can be improved.

In addition, the size of the heat exchanger can be reduced by improving the heat exchange cooling efficiency, and there is no cross leakage of air.

Further, the spiral tube and the space are continuously arranged and the housing is easily manufactured and the durability is improved.

In addition, the latent heat of evaporation of water can be used to reduce the energy consumption by making the temperature of the fluid unfamiliar, and it is caused by the environmentally friendly elements using natural air and water at atmospheric pressure, so there is no risk due to environmental pollution .

1 is a perspective view of an evaporative cooling heat exchanger unit module according to the present invention.
2 is a perspective view of a partial module of an evaporative cooling heat exchanger according to the present invention.
3 is a side view of the evaporative cooling heat exchanger according to the present invention.
4 is a rear view of the evaporative cooling heat exchanger according to the present invention.
5 is a top view of the evaporative cooling heat exchanger according to the present invention.
6 is an enlarged cross-sectional view of a spiral tube of an evaporative cooling heat exchanger according to the present invention.
7 is a perspective view of an evaporative cooling heat exchanger according to another embodiment of the present invention.
8 is a side view of an evaporative cooling heat exchanger according to another embodiment of the present invention.
9 is a top view of an evaporative cooling heat exchanger according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a unit module of an evaporative cooling heat exchanger according to the present invention, FIG. 2 is a perspective view of a partial module of an evaporative cooling heat exchanger according to the present invention, FIG. 3 is a side view of an evaporative cooling heat exchanger according to the present invention, FIG. 4 is a rear view of the evaporative cooling heat exchanger according to the present invention, FIG. 5 is a top view of the evaporative cooling heat exchanger according to the present invention, and FIG. 6 is an enlarged sectional view of the spiral tube of the evaporative cooling heat exchanger according to the present invention FIG. 7 is a perspective view of an evaporative cooling heat exchanger according to another embodiment of the present invention, FIG. 8 is a side view of an evaporative cooling heat exchanger according to another embodiment of the present invention, and FIG. And is a top view of the evaporative cooling heat exchanger.

1 to 9, an evaporation cooling heat exchanger according to the present invention includes a housing 31 forming an outer shape, a spiral tube 21 provided in the housing 31, a long side space 61, A short side space 62, a humidifier 51, a humidifying air inlet header 81, and a humidifier exhaust header 91.

The processing air inlet 11a, the processing air inlet 12a, the humidifying air inlet 11b and the humidifier exhaust 12b are separately formed in the housing 31. [

A long side space 61 or a short side space 62 for changing the air flow of the process air a is provided in a zigzag shape between the spiral pipes 21 to form a flow path of the process air a .

Meanwhile, the spiral tube 21 is formed in a spiral curved shape that rotates continuously in the shape of a circle, an ellipse, a triangle, a quadrangle, or a polygon.

The spiral tube 21 is a continuous spiral tube having a curved spiral shape. The spiral tube 21 is made of heat-resistant synthetic resin or a non-ferrous material such as copper or aluminum, or a tube made of heat-resisting synthetic resin or a nonferrous tube such as a copper tube or an aluminum tube. And formed into a curved shape.

Further, the inner surface of the spiral tube 21 is subjected to an antibacterial treatment and a hydrophilic treatment.

The humidifying air b flows into the spiral tubes 21 and the header 81 and 91 are integrally joined to both ends of the spiral tubes 21 to form a partial module. And a plurality of partial modules may be continuously arranged in accordance with the amount of processing air. That is, the number of the partial modules including the spiral tube 21 and the headers 81 and 91 can be increased or decreased depending on the amount of processing air.

Alternatively, a plurality of unit modules may be continuously arranged.

A thin plate spring type wick 71 is inserted into the spiral tube 21 and a humidifying water distributor 72 is inserted into the inlet of the spiral tube 21 to receive the humidifying water.

Further, the wick 71 is formed into a plate spring shape having no corrosion such as a thin stainless steel which can induce the humidifying air flowing in the spiral pipe 21 into a spiral shape to improve the heat exchange efficiency by increasing the evaporation rate of the humidifying water And the humidifying water distributor 72 is formed of a synthetic resin or a non-iron molded product that allows the humidifying water to be drawn into the inner wall of the spiral tube 21 at the entrance of the spiral tube 21 at the inlet thereof.

The interval between the spiral tube 21 and the spiral tube 21 is continuously arranged within 0.3 to 5 times the diameter of the spiral tube 21 depending on the ratio of the processing air a and the humidifying air b .

The humidifier exhaust header 91 of the humidifier exhaust unit 12b is divided into upper and lower portions and the air induction pins 94 and 95 are attached to the exhaust load header 93 And a drain port (76) is further provided at a lower portion of the humidifier exhaust part (12b).

Further, an exhaust floating header 92 is provided on the upper side of the exhaust load section header 93.

The humidifying air inflow part header 81 and the humidifier air vent part 12b are provided with a discharge part header 93 and the inlet part header 81 and the discharge part header part 93 is made of heat-resistant synthetic resin or non-ferrous metal and formed integrally with the spiral tube 21 to prevent leakage.

According to the present invention, the humidifying water is uniformly uniformed by the increase of the heat transfer area by the spiral tube 21 and the long side and short side spaces 61 and 62 and the change of the air flow path and the hydrophilic treatment of the inner wall of the spiral tube 21 So that the efficiency of evaporative latent heat heat exchange cooling can be maximally improved.

That is, by improving the heat exchange cooling efficiency, the size of the heat exchanger can be reduced and there is no cross leakage of air.

The humidifier 51, the humidifying air inlet header 81, the humidifier exhaust header 91, and the housing 31 are provided to cool the process air a by the latent heat of evaporation of water by humidification, And it is caused by safe and environmentally friendly elements using natural air and water, so there is no risk factor due to environmental pollution in case of leakage.

Further, the spiral tube 21 and the spaces 61 and 62 are continuously arranged and the housing 31 and the like are easily manufactured and the durability is improved.

The operation of the evaporative cooling heat exchanger according to the present invention will be described.

The process air a flows through the process air inflow section 11a and flows into the process air section 1a composed of the spiral pipe 21 and the long side space 61 or the short side space 62 .

At this time, the process air (a) is staggered by the long side space 61, and the flow path of the air is changed and heat exchange is performed. As described above, since the process air (a) flows in a zigzag fashion between the spiral pipes 21, the heat exchange efficiency is increased.

Then, the process air (a), which is again heat-exchanged and whose temperature is unfavorable, may be supplied through the treated air supply portion 12a or a part thereof may flow into the humidifying air portion 1b.

The treated air (a) is circulated through the treated air portion 1a by the dry high-temperature dry air dehumidified in the room or dehumidified by the dehumidifier, and is heat- .

The humidifying air (b) flowing through the spiral pipe (21) can be circulated in the processing air supply part (12a) or ventilated in the room, or mixed air of indoor ventilation air and outside air, or As the air introduced from the outside, the humidifying water on the inner wall of the spiral tube 21 is evaporated while the surrounding heat is absorbed and saturated and the temperature rises and flows into the humid air (c) and is discharged to the outside through the humidifier exhaust part 12b .

The humidifying water of the humidifier 51 for humidifying the humidifying air b of the humidifying air portion 1b flows through the inner wall of the spiral tube 21 subjected to hydrophilic treatment by hydrophilic coating or corrosion treatment while flowing downward by gravity, And the efficiency of heat exchange due to the latent heat of evaporation is increased.

The wick 71 is inserted into the spiral tube 21 to induce the humidifying air b flowing into the spiral tube 21. The humidifying water is introduced into the spiral tube 21 The humidifying water distributor 72 for uniformly distributing the humidifying water to the inner wall of the humidifying water distributing unit 72 is inserted to uniformly distribute the humidifying water on the inner wall subjected to the hydrophilic treatment to increase the evaporative efficiency of the humidifying water by the humidifying air b flowing in the spiral shape.

In addition, the humidifying air (b) absorbs the surrounding heat while evaporating the humidifying water, and the temperature of the humidifying air is saturated and flows into the humid air (c) and is discharged to the outside through the humidifying unit (12b).

The inner and outer air induction pins 94 and 95 integrally attached to the inside and the outside of the lower exhaust header 93 of the humidifier exhaust unit 12b support the spacing of the partial modules and the rigidity of the structure And the flow of the flowing air is constant.

A clean water or purified water supply pipe is connected to the humidifier 51 and is drained through a drain port 76 at the lower part of the humidifier exhaust unit 12b when the non-evaporative humidification water is generated in the humidifying air unit 1b.

Although the preferred embodiments of the present invention have been described in detail, the technical scope of the present invention is not limited to the above-described embodiments, but should be construed according to the claims. It will be understood by those skilled in the art that many modifications and variations are possible without departing from the scope of the present invention.

a: treated air b: humidified air
c: humid air
1a: treated air portion 1b: humidified air portion
11a: Process air inflow section 12a: Process air inflow section
11b: humidifying air inflow part 12b: humidifying air venting part
21: spiral tube 31: housing
51: Humidifier
61: Long side space 62: Short side space
71: Wick 72: humidifier water dispenser
76: Sewer
81: Humidification air inlet header
91: Humidifier exhaust header
92: exhaust floating header 93: exhaust load header
94: inner air induction pin 95: outer air induction pin

Claims (15)

A housing having a processing air inlet, a processing air inlet, an upper humidifying air inlet, and a lower humidifier outlet separated from each other; And
And a spiral tube installed in the housing,
Wherein the processing air section and the humidifying air section are separated by the spiral tube, the humidifying water and the humidifying air flow into the spiral tube, and the processing air flows to the outside of the spiral tube.
The method according to claim 1,
Wherein the process air and the humidifying air flow in a noncontact manner without being mixed with each other, and the direction of the air flow in the flow path is opposite to or crossed with each other.
3. The method according to claim 1 or 2,
Wherein the processing air is ventilated in the room, or mixed air of indoor air and outside air, or high-temperature dry air dehumidified by a dehumidifier, wherein the humidifying air is added at the processing air supply unit, or Wherein the evaporating cooling heat exchanger is ventilated indoors or air introduced from the outside.
The method according to claim 1,
Wherein the humidifying water of the humidifying unit humidifying the humidifying air of the humidifying air unit is evaporated while uniformly wetting the inner wall of the spiral pipe while flowing downward by gravity.
The method according to claim 1,
Wherein a header is integrally assembled to both ends of the spiral pipes to constitute a partial module, and the partial modules are assembled into one unit module.
The method according to claim 1,
The spiral tube is arranged continuously,
Wherein the space between the spiral tube and the spiral tube is further provided with a long side and a short side which are inserted in a staggered shape.
The method according to claim 1,
A wick is inserted into the spiral tube,
And a humidifying water distributor for guiding the humidifying water to the inner wall of the spiral tube is inserted into the entrance of the spiral tube.
The method according to claim 1,
Wherein the inner wall of the spiral tube is uniformly coated with the humidifying water on the inner wall by an antibacterial treatment and a hydrophilic treatment by a hydrophilic coating or a corrosion treatment.
The method according to claim 1,
Wherein the humidifying air inflow part is provided with an exhaust part header at the inlet header and the humidifier exhaust part, and the inlet header and the exhaust part header are integrally formed by joining with the spiral pipe.
The method according to claim 6,
Wherein the long side space or the short side space is formed in a flat plate shape of a heat resistant synthetic resin or a non-iron plate, or a wavy shape or a wavy shape.
The method according to claim 1,
Wherein the spiral tube is a continuous spiral curved tube having a circular or elliptical shape or a triangular, square, or polygonal cross-section.
The method according to claim 1,
Wherein the housing is assembled with a material resistant to corrosion such as synthetic resin or non-iron or stainless steel.
The method according to claim 1,
Wherein the humidifier for humidifying the humidifying water in the humidifying air is made of a non-ferrous material such as synthetic resin or aluminum, connected to the water supply pipe, and the humidifying water introduced is one of clean water or purified water.
The method according to claim 1,
Wherein an interval between the spiral tube and the spiral tube is continuously arranged within 0.3 to 5 times the spiral tube diameter.
[3] The apparatus according to claim 1, wherein the exhaust header of the humidifier exhaust unit is divided into an upper portion and a lower portion, and an air induction pin is integrally formed on the inside and outside of the exhaust load header, And a drain port for discharging the evaporated cooling heat exchanger.

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