KR100622443B1 - Evaporative Cooling Heat Exchanger and Condenser Using the Same - Google Patents

Abstract

The present invention relates to an evaporative cooling heat exchanger for cooling a cooling fluid or condensing a refrigerant. The evaporative cooling heat exchanger includes a heat transfer tube formed by meandering in a plurality of curved pipe portions and a straight pipe portion, and a fluid inlet side end portion of the straight pipe portion. A fluid inlet header coupled to the fluid inlet header, a fluid outlet header coupled to the fluid outlet side end of the straight pipe portion, a plurality of tube plate frames for supporting the heat transfer tube, and a plurality of tube plate slots through which the curved tube part is inserted, and a fixing member for fixing the tube plate frame. And the heat-transfer tube part consisting of; It is arranged to receive the heat transfer pipe, the filler sheet is formed by the valleys and bumps forming the flow path and the water film of the cooling water and air, a plurality of flat portion formed integrally with the filler sheet, and formed by opening the flat portion, the curved pipe portion Filler slot for receiving the heat transfer pipe, characterized in that it comprises a filler member formed integrally with the filler sheet and composed of a plurality of gap projections to maintain the interval between the cooling water and the air between the filler sheet. As a result, the heat exchange efficiency can be improved, the size and power consumption of the heat exchanger can be reduced, and as a structure that is easy to assemble and separate, the installation and repair can be simplified and the maintenance cost can be reduced. Provide a cooled heat exchanger.

Evaporative cooling heat exchanger, condenser, filler, heat pipe

Description

Evaporative cooling type heat exchanger and condenser using the same

1 is a schematic perspective view of an evaporative cooling heat exchanger according to a first embodiment of the present invention;

2 is a side cross-sectional view of FIG.

3 is a schematic configuration diagram of a filler member of FIG. 1;

4 is a schematic perspective view of an evaporative cooling heat exchanger according to a second embodiment of the present invention;

5 is a side cross-sectional view of FIG. 4;

6 is a schematic configuration diagram of a filler member of FIG. 4;

7 is a schematic side cross-sectional view of a condenser as an embodiment using the evaporative cooling heat exchanger of the present invention;

8 is a schematic side cross-sectional view of a condenser as another embodiment using the evaporative cooling heat exchanger of the present invention;

9 is a schematic side cross-sectional view of a condenser as another embodiment using the evaporative cooling heat exchanger of the present invention;

10 is a side cross-sectional view of a condenser having a conventional evaporative cooling heat exchanger,

11 is a side cross-sectional view of another condenser having a conventional evaporative cooling heat exchanger.

<Code Description of Main Parts of Drawing>

1a, 1b, 310: evaporative cooling heat exchanger 2a, 2b, 2c, 300a, 300b: condenser

10, 310: heat transfer pipe portion 11, 311: heat transfer pipe

12a, 12b, curved tube portion 13: straight tube portion

14, 314: fluid inflow header 15, 315: fluid inflow header

16a, 16b: tube plate frame 17: support tube plate

18 tube plate slot 19 fixing member

20a, 20b, 320: Filler member 21a, 21b: Filler sheet

22: flat part 23a, 23b: filler slot

24: mouse portion 25: hinge groove

26: gap projection 27a, 27b, 327: eliminator

28a, 28b, 328: louver 30a, 30b, 330b, 330c: water spray

31a, 31b, 31c, 331: casing 33a, 33b: condensation water fan

34: bracket 35a, 35b, 35c, 335: sump tank

36: water gauge 37: machine room

40, 340: circulation pump 41, 341: cooling water suction pipe

42, 342: cooling water supply pipe 43a, 43b, 43c, 343: water supply port

44: condensate water inlet pipe 45a, 45b, 345: water supply control valve

46: level control switch 47: water pipe

48: drain valve 49: drain port

50, 250: compressor 51, 251: refrigerant gas inlet pipe

52: refrigerant gas inlet 53, 253: refrigerant gas discharge pipe

54: refrigerant liquid outlet 55, 255: refrigerant liquid outlet

60a, 60b, 60c, 360: Fan part 61a, 61b, 61c: Cooling fan

62: drive motor 70: supply and exhaust louver

71: supply louver 72: exhaust louver

73: outer frame 74: partition frame

81: supply port 82: exhaust port

100: dustproof member 101: indoor floor

102: outer wall 103: outer wall opening

200: air conditioner 210: evaporator

231: air conditioner casing 260: air conditioner fan

270: intake grill 280: discharge grill

The present invention relates to an evaporative cooling heat exchanger and a condenser using the same, and more particularly, to an evaporative cooling heat exchanger having a filler in a heat transfer tube and a condenser using the same.

Generally, an evaporative cooling heat exchanger is configured in a machine and apparatus for cooling a cooling fluid (cooling water, oils, air, etc.) or condensing a refrigerant gas.

Conventional condensers include an air cooled condenser that uses air as a cooling medium, an evaporative cooling condenser that exchanges heat by contacting air, which is a cooling medium, and cooling water, and cooling water supplied from a cooling tower. It is divided into water cooled condenser.

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

Conventional air-cooled condensers (or outdoor units) for condensing refrigerant gas include compressors, condensers, cooling fans, refrigerant gas temperature controllers and pressure regulators as associated parts. head pressure controller, high pressure switch, low pressure switch, oil pressure switch, fan fan controller, refrigerant control electronic valve (solenoid valve), accumulator, dryer filter, liquid receiver,
Muffler, pre-cooler, thermostatic expansion valve or capillary tube, check valve to prevent backflow, safety valve and And a fusible plug, a bypass by pass pipe, a control box, and the like, but these known associative parts may be integrally or selectively mounted depending on the configuration of the device. The compressor and some associated parts may be configured in the unit in which the evaporator is constructed.

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And the air-cooled condenser is inserted into the straight pipe with a heat pipe (coil) consisting of a plurality of u-bend and straight pipe, approximately 2 ~ 6mm pitch (a copper plate) of 0.15mm ~ 0.6mm thick Cooling fins are formed in the pleats (slit) and a plurality of through-holes are inserted into the straight pipe, and the tube plate is formed with a plurality of through-holes are inserted into the straight pipe.

Here, the ends of the straight pipe drawn out through the pipe plate are welded to the curved pipe and the header according to the arrangement.

In addition, by cooling the outer surface of the heat transfer tube while forcibly flowing air through the cooling fin gap formed by the action of the cooling fan to condense the refrigerant gas flowing into the tube.

The conventional air-cooled condenser of such a configuration has an advantage that it can be easily installed compared to an evaporative cooling condenser and a water-cooled condenser, while cooling is performed by sensible heat heat exchange within a temperature difference range between an external dry bulb temperature and a refrigerant liquid. Due to its characteristics, the condensation efficiency is low (especially, it cannot be cooled below the atmospheric temperature), and when the air dry bulb temperature exceeds the design dry bulb temperature (32 ℃ DBT) in summer, the condensation efficiency corresponding to the temperature rise is lowered, thereby cooling the cooler (or freezer). Sometimes driving problems occur.

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Although the increase parameters may vary depending on the configuration, use, and operating conditions of the air-cooled condenser, the power consumption of the condenser, the heat transfer area of the heat pipe, the amount of cooling air, and the size of the condenser are about 40-50% or more than those of the evaporative cooling condenser. There may be a problem that can be increased and thus the operating cost is also increased.

In addition, the cooling fins of the thin plate may be impaired or deformed when subjected to impact due to weak external shocks, which may impede the air flow, and need periodic management to remove and accumulate air foreign matter between densely formed cooling fins. Since cooling fins are difficult to replace and replace, it is inconvenient to replace the entire heat pipe with cooling fins.

In addition, the conventional conventional integrated air conditioner, which integrates the configuration of the air-cooled condenser (outdoor air) to the air conditioner (indoor room), has a corresponding cooling heat loss (energy) in a configuration in which a part of the indoor air cooling air is used as cooling air. In the configuration using outside air as cooling air, there is a problem in that an air-cooled condenser having a condensation capacity corresponding to an outdoor unit is limited in a limited air conditioner space, and noise of a cooling fan is transmitted to the room. Therefore, in any of the above cases, the air-cooled condenser is unsuccessful in terms of securing space, condensation efficiency and energy operation.

Next, the water-cooled condenser has the advantages of higher condensation efficiency and reduced power consumption compared to the air-cooled condenser, while additional equipment such as a cooling tower for supplying cooling water and cooling and drainage piping must be followed. It has the disadvantage of being complicated.

In the conventional conventional integrated cooler integrating the condenser of the evaporative cooling condenser into the air conditioner, the coolant is condensed by sprinkling the coolant on the surface of the heat pipe composed of bare tubes, but the evaporative cooling is limited within the limited air conditioner space. The condenser is constrained and the cooling water sprayed on the heat pipes at low water drop free flows into the sump (or water tank) without delay, so that the water droplets and water film formation that are rubbed on the surface of the heat pipes are reduced, resulting in low evaporative cooling efficiency. There is a problem losing.

Therefore, in the structure in which the evaporative cooling condenser is integrated in the air conditioner, it is not successful in terms of space and condensation efficiency.

Next, a condenser having a conventional evaporative cooling heat exchanger installed outdoors will be described in detail with reference to the accompanying drawings.

Prior to description, the known compressor and associated parts will be omitted and only the main parts shown in the drawings will be described.

10 is a side cross-sectional view of a condenser having a conventional evaporative cooling heat exchanger. As shown in the figure, the conventional condenser 300a having an evaporative cooling heat exchanger is a counter flow type, forming a heat exchange region and forming an exhaust opening (not shown) for discharging hot exhaust gas in the upper central region. It is fixed to the upper part of this water tank 335.

Next, a pair of louvers are formed between the upper end of the water collecting tank 335 and the lower end of the casing 331 to guide the air into the condenser 300a and to recover the coolant that escapes to the outside. 328).

Next, a driving unit (not shown) consisting of a cooling fan (not shown), a fan cylinder (not shown) for accommodating the cooling fan, a belted driver (not shown), and a driving motor (not shown), and a driving unit support member. The fan unit 360 (not shown) is coupled to communicate with an exhaust port formed in the upper central region of the casing 331.

Next, a distribution main (not shown) for introducing the coolant, a plurality of distribution pipes (not shown) branched from the distribution main, and a plurality of spraying nozzles (not shown) coupled to the distribution pipe, and the heat pipe part 310 The spraying portion 330b for spraying the cooling water toward is disposed to be spaced apart from the exhaust port formed in the casing 331.

Next, a cooling water inlet pipe 341 is provided between the cooling water outlet (not shown) formed in the water collecting tank 335 and the suction port of the circulation pump 340, and supplies the cooling water to the water spraying unit 330b, and the discharge port and the spraying water of the circulation pump 340. The cooling water supply pipe 342 is connected between the portions 340b.

Next, an eliminator 327 is disposed above the sprinkler 330b to recover the water droplets scattered toward the cooling fan (not shown) into the condenser 300a.

Next, repeat with a number of straight pipes (not shown) and curved pipes (not shown).
Evaporative cooling type consisting of a heat transfer tube 311, a fluid inflow header 314 for introducing refrigerant gas from a compressor (not shown), and a fluid outflow header 315 for outflowing the refrigerant liquid to an evaporator (not shown). The heat exchanger 310 is provided with a predetermined spraying interval under the spraying portion 330b.

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Next, the water supply control valve 345 consisting of a float valve that supplements the cooling water evaporated during the evaporative cooling heat exchange process and supplies the supplementary water when the water collection tank 335 becomes low and automatically shuts off the water supply when the supplementary water is supplied to a predetermined level is provided. It is coupled to the water inlet 343.

Next, a support stand (not shown) for supporting the condenser 300a is provided at the bottom of the sump tank.

By this configuration, the cooling water circulated from the water collecting tank 345 to the watering unit 330b according to the action of the circulation pump 340 is a heat transfer tube 311 composed of a bare tube through a watering nozzle (not shown). The cooling water sprayed toward the water is sprinkled repeatedly along the outer surface of the heat pipes continuously arranged in the vertical direction, and diffuses into small water droplets by friction, and the water film is formed on the outer surface of the heat pipes 311 by flowing water droplets.

On the other hand, the air flowing through the louver 328 through the louver 328 to the heat transfer tube 311 by the action of the cooling fan is in contact with the water droplets formed on the heat transfer tube 311 and forms evaporative heat exchange while exchanging hot air. The exhaust is exhausted to the outside through the eliminator 327 and the cooling fan.

And a fluid inflow header from a compressor configured in a spaced apart unit (not shown).
Refrigerant gas introduced through the 314 is condensed by evaporative cooling while flowing in the heat transfer pipe 311 and the condensed refrigerant liquid is an evaporator (not shown) configured in units (not shown) spaced apart through the fluid outlet header 315. The refrigerant cycle is repeated.

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In the conventional condenser 300a having the evaporative cooling heat exchanger, the cooling water falling into the space between the straight pipe portions is bypassed to the collection tank 335 without passing through the outer surface of the heat pipe, and countlessly flows quickly without delay in the heat exchange zone. Water vapor and water film formed on the surface of the heat transfer tube (311) and the evaporation heat exchange is a feature that must be evaporated heat exchange, depending on the configuration and use and operation conditions of the evaporative cooling condenser, although it is used in water-cooled condenser The air flow rate and air flow resistance are increased compared to the counterflow cooling tower using the filler element as a heat exchanger, and the power consumption of the cooling fan is increased (about 30 to 40%) and the size of the condenser is increased (about 50 to 100%). Investment costs and operating costs also increase.

11 is a side cross-sectional view of another condenser having a conventional evaporative cooling heat exchanger. As shown in the figure, unlike the other condenser 300a having the conventional evaporatively cooled heat exchanger described above, the condenser 300b having the conventional evaporatively cooled heat exchanger is cross-flow type and has a plurality of upper portions of the heat pipe 310. The filler member 320 is further included in a predetermined region of the lower portion and the lower portion.

In addition, a pair of gravity sprinkling sprinkling units 330b formed of a plurality of sprinkling nozzles formed at an upper portion and penetrating the bottom thereof is provided at an upper portion of the casing 331.

By this configuration, the coolant sprayed through the water sprayer 330b is evenly sprayed on the surface of the upper heat pipe 311 along the flow path of the upper filler member 320, and the coolant that has passed through the upper heat pipe 311 is the intermediate filler member 320. It flows to the lower heat transfer tube 311 and the lower filler member 320 through the), the water spray cooling water is repeatedly dropped along the outer surface of the plurality of filler member 320 and the heat transfer tube 311, and diffused into small droplets by friction The water film is formed on the outer surfaces of the filler member 320 and the heat transfer tube 311 by flowing water droplets.

On the other hand, the air flowing through the louver 328 to the heat exchange area by the action of the cooling fan makes evaporative heat exchange while contacting water droplets that are dispersed and falling, and the water film formed on the surface of the filler member 320 and the heat transfer pipe 311, and thus, Air is exhausted to the outside through the eliminator 327 and the cooling fan.

The condenser 300b having the conventional evaporative cooling heat exchanger has a filler such that the coolant sprayed on the surface of the heat transfer tube 311 is evenly distributed, and the flow of the coolant flowing through the heat exchange area is delayed to improve the heat exchange efficiency of the coolant. Although the member 320 is laid, the coolant falling into the space between the straight pipe portions flows bypass to the filler member 320 and the water collecting tank 335 without passing through the outer surface of the heat pipe, and quickly and without delay in the heat pipe 311 region. It is a characteristic that heat exchange is performed while numerous water droplets flowing and water film formed on the surface of heat transfer tube 311 come into contact with each other, and the increase variable may vary depending on the configuration, use, and operating conditions of the evaporative cooling condenser. The air flow rate and the air flow resistance are increased compared to the cross flow cooling tower having the filler member as a heat exchange part. Increased power (approximately 30-40%) and condenser product size (approximately 50-100%) increase initial investment and operating costs, and the filler is in close contact between the heat transfer tubes 311 of a plurality of units. Since the structure of the support member 320 is complicated, there is a problem in that the cost of the support member is increased.

Accordingly, an object of the present invention is to improve the heat exchange efficiency, to reduce the size and power consumption of the heat exchanger, to simplify the installation and repair, and to reduce the maintenance cost evaporative cooling heat exchanger To provide a flag.

In order to achieve the above object, the present invention, an evaporative cooling heat exchanger (cooling the cooling fluid or condensing the refrigerant gas) is a plurality of u-bend and straight tube (straight tube) A heat exchanging tube bundle repeatedly formed as a serpentine, a fluid inlet header coupled to the fluid inlet side end of the straight pipe, and coupled to the fluid outlet side end of the straight pipe part; A fluid outlet header, a plurality of tube sheet frames to support the heat pipes, and a plurality of tube shet slots through which the bent portion enters and exits, and a fixing member for fixing the tube plate frames. A heat pipe part configured to be formed; A filler sheet is formed to accommodate the heat transfer tube, and is formed integrally with the filler sheet, the filler sheet being formed of a valley and a ridge for forming a flow path and a water film of cooling water and air. A plurality of flat faces, a filler slot formed by opening the flat part, a curved slot part entering and receiving the heat transfer tube, and integrally formed with the filler sheet, and spaced between the coolant and air flow paths between the filler sheets; It provides an evaporative cooling heat exchanger comprising a filler member consisting of a plurality of spacers to maintain the.

Here, the heat transfer pipe is preferably configured by repeated bending (bending) to the straight pipe portion and the curved pipe portion, but may be configured by welding a separate straight pipe and curved pipe, one side is bent to the straight pipe portion and the bent pipe and the other side is separate It can also be constructed by welding a curved pipe.

And the heat pipe is preferably configured to be inclined curved pipe portion, it may be configured horizontally or vertically.

In addition, the heat pipe is preferably configured in the range of 2 to 6 rows (row), but may be configured in more than one row.

The heat inlet header and the heat pipe coupled to the fluid outlet header are preferably arranged in a single serpentine, but may also be configured as a half serpentine or a double serpentine.

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In addition, the heat transfer tube is preferably composed of a copper tube (copper tube), it may also be composed of a stainless tube (steel tube) or steel tube (steel tube).

In addition, the tube plate slot is preferably formed to be an oval rectangle hole by slightly larger than the outer shape of the curved pipe portion so that the curved pipe portion can be inserted or separated smoothly.

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The outer side of the tube plate frame is preferably configured to further include a plurality of bolt holes for fixing the fixing member.

And between the pair of tube plate frame may further comprise one or more support tube plate formed with a tube plate slot to strengthen the support.

In addition, the fixing member for fixing the tube plate frame is preferably composed of a steel rod bar (screw) formed with a screw to fasten the screw at both ends, it may also be composed of a fixing member of flat iron or section steel bolted to the tube plate frame. It may be.

The tube plate frame may be divided into a plurality of components to facilitate insertion into the heat transfer tube, and the plurality of divided tube plate frames may further include a coupling part inserted into the heat transfer tube and then assembled into one tube plate frame.

And the support tube plate may be configured by dividing into a plurality in order to facilitate insertion into the heat transfer tube.

Next, a plurality of bones and bumps formed integrally with the filler sheet may be configured in various shapes such as a herringbone shape, a chevron shape, a corrugate shape, and a wave shape.

In addition, the planar portion formed integrally with the filler sheet is a means for easily forming the filler slot, and is preferably formed slightly larger than the opening of the filler slot.

 Here, the planar portion is preferably formed to correspond to the arrangement of the curved portion of the heat transfer pipe.

The flat part may further include a reinforcing groove spaced outward from the filler slot.

The filler slot of the elliptical long hole formed by opening the flat portion corresponding to the curved portion of the heat pipe is preferably configured to be slightly larger than the outer shape of the curved portion so as to be smoothly inserted into or separated from the curved portion.

In addition, the filler slot is formed as an incision that cuts the center between a pair of openings and a pair of openings through which the straight pipe portion enters and exits slightly larger than the outer diameter of the straight pipe portion so as to smoothly insert or separate the heat exchange area of the filler sheet. It can also be configured as glasses.

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In this case, both sides of the cutout are bent to be inserted in the opposite direction when inserted into the bent part, and when passed through the bent part, the bend is restored to its original state by a restoring force, and a mouth part is formed as a heat exchange area.

In addition, the planar portion may further include a hinge groove at a predetermined position spaced outward from the incision to facilitate restoration to the original state of bending and bending when the mouth portion is inserted into or removed from the curved tube portion.

An end portion of the filler slot may further include a collar having a predetermined height projecting in the front or rear direction of the filler sheet and seated on a straight pipe surface.

And the gap protrusion formed integrally with the filler sheet is preferably formed to maintain the gap between the filler member within the range of 20 ~ 40mm.

In addition, when the filler member is cross-flow type, the louver may be integrally formed with the air inlet side end, and may further include an eliminator integrally with the exhaust side end.

The filler member may be divided into a plurality of parts to facilitate insertion into the heat transfer tube.

In addition, the filler member is preferably formed by vacuum molding into a plastic film such as polypropylene or polyvinyl chloride having heat resistance, but may be formed by injection molding with a plastic material. In addition, a non-ferrous metal sheet such as stainless steel having corrosion resistance may be formed by forming a groove, a bump, a planar portion, and a gap into a press and drilling a filler slot.

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The object of the present invention is also a condenser using an evaporative cooling heat exchanger. A casing which forms a heat exchange area and has an air supply port for introducing air and an exhaust port for discharging hot exhaust gas; A fan unit disposed in communication with the exhaust port and comprising a cooling fan and a driving unit; A louver provided adjacent to the air supply port and guiding the introduced air into the condenser and recovering the coolant that is separated from the outside; An eliminator provided adjacent to the exhaust port and recovering droplets scattered toward the exhaust port; A heat transfer pipe disposed in the heat exchange area and repeatedly formed in a meandering manner with a plurality of curved pipe parts and a straight pipe part, a fluid inflow header coupled to the fluid inlet side end portion of the straight pipe portion, and a fluid outflow coupled to the fluid outlet side end portion of the straight pipe portion; A heat transfer tube part including a header, a plurality of tube plate frames for supporting the heat transfer tube, and a plurality of tube plate slots through which the curved tube part is inserted, and a fixing member for fixing the tube plate frame; A filler sheet disposed to receive the heat transfer tube and formed of a valley and a bump forming a flow path of cooling water and air, a water film, a plurality of flat portions formed integrally with the filler sheet, and formed by opening the flat portion and a curved tube An evaporative cooling heat exchanger comprising: a filler slot configured to additionally enter and receive the heat transfer tube; and a filler member formed integrally with the filler sheet and having a plurality of gap protrusions to maintain a gap between the coolant and the air between the filler sheets; A sprinkling unit provided at an upper portion of the evaporative cooling heat exchanger to sprinkle cooling water toward the evaporative cooling heat exchanger; A water collecting tank provided under the evaporative cooling heat exchanger; It is also achieved by a condenser comprising a cooling water suction pipe for supplying cooling water from the water tank to the water spray unit, a cooling water discharge pipe, a circulation pump, and a water supply control valve for controlling the replenishment water supplied to the water tank.

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The condenser may further include a compressor for compressing and flowing the refrigerant gas, a refrigerant gas inlet tube for introducing the refrigerant gas from the evaporator, and a refrigerant gas discharge tube for flowing the refrigerant gas from the compressor to the evaporative cooling condenser. .

The condenser is preferably configured to be installed indoors in communication with the outer wall opening, but may also be configured to be integrally installed in the air conditioner (indoor) casing, or may be configured to be installed outdoors.

In addition, the bottom of the sump tank is provided with a compressor and a circulation pump, and may further include a machine room in which a check hole, a predetermined ventilation hole and a pipe through hole are formed.

Here, one region of the casing may further include a condensation water pan for collecting condensed water generated from an evaporator spaced apart from each other and a condensed water inlet for introducing condensed water into the casing. In this case, the low temperature condensed water generated from the evaporator is used as cooling water.

In addition, when the condenser is installed indoors, the air supply port and the exhaust port may be configured to further include an air supply and exhaust louver disposed in the outer wall opening and divided into an air supply louver and an exhaust louver.

Here, the heat transfer pipe is preferably configured by repeated bending (bending) to the straight pipe portion and the curved pipe portion, but may be configured by welding a separate straight pipe and curved pipe, one side is bent to the straight pipe portion and the bent pipe and the other side is separate It can also be constructed by welding a curved pipe.
And the heat pipe is preferably configured to be inclined curved pipe portion, it may be configured horizontally or vertically.
In addition, the typical tube is preferably configured in a range of 2 to 6 rows (row), it may be configured in more than one row.
The heat inlet header and the heat pipe coupled to the fluid outlet header are preferably arranged in a single serpentine, but may also be configured as a half serpentine or a double serpentine.
In addition, the heat transfer tube is preferably composed of a copper tube (copper tube), it may also be composed of a stainless tube (steel tube) or steel tube (steel tube).
In addition, the tube plate slot is preferably formed to be an oval rectangle hole by slightly larger than the outer shape of the curved pipe portion so that the curved pipe portion can be inserted or separated smoothly.
The outer side of the tube plate frame is preferably configured to further include a plurality of bolt holes for fixing the fixing member.
And between the pair of tube plate frame may further comprise one or more support tube plate formed with a tube plate slot to strengthen the support.
In addition, the fixing member for fixing the tube plate frame is preferably composed of a steel rod bar (screw) formed with a screw to fasten the screw at both ends, it may also be composed of a fixing member of flat iron or section steel bolted to the tube plate frame. It may be.
The tube plate frame may be divided into a plurality of components to facilitate insertion into the heat transfer tube, and the plurality of divided tube plate frames may further include a coupling part inserted into the heat transfer tube and then assembled into one tube plate frame.
And the support tube plate may be configured by dividing into a plurality in order to facilitate insertion into the heat transfer tube.
Next, a plurality of bones and bumps formed integrally with the filler sheet may be configured in various shapes such as a herringbone shape, a chevron shape, a corrugate shape, and a wave shape.
In addition, the planar portion formed integrally with the filler sheet is a means for easily forming the filler slot, and is preferably formed slightly larger than the opening of the filler slot.
Here, the planar portion is preferably formed to correspond to the arrangement of the curved portion of the heat transfer pipe.
The flat part may further include a reinforcing groove spaced outward from the filler slot.
The filler slot of the elliptical long hole formed by opening the flat portion corresponding to the curved portion of the heat pipe is preferably configured to be slightly larger than the outer shape of the curved portion so as to be smoothly inserted into or separated from the curved portion.
In addition, the filler slot is formed as an incision that cuts the center between a pair of openings and a pair of openings through which the straight pipe portion enters and exits slightly larger than the outer diameter of the straight pipe portion so as to smoothly insert or separate the heat exchange area of the filler sheet. It can also be configured as glasses.
In this case, both sides of the cutout are bent to be inserted in the opposite direction when inserted into the bent part, and when passed through the bent part, the bend is restored to its original state by a restoring force, and a mouth part is formed as a heat exchange area.
In addition, the planar portion may further include a hinge groove at a predetermined position spaced outward from the incision to facilitate restoration to the original state of bending and bending when the mouth portion is inserted into or removed from the curved tube portion.
An end portion of the filler slot may further include a collar having a predetermined height projecting in the front or rear direction of the filler sheet and seated on a straight pipe surface.
And the gap protrusion formed integrally with the filler sheet is preferably formed to maintain the gap between the filler member within the range of 20 ~ 40mm.
In addition, when the filler member is cross-flow type, the louver may be integrally formed with the air inlet side end, and may further include an eliminator integrally with the exhaust side end.
The filler member may be divided into a plurality of parts to facilitate insertion into the heat transfer tube.
In addition, the filler member is preferably formed by vacuum molding into a plastic film such as polypropylene or polyvinyl chloride having heat resistance, but may be formed by injection molding with a plastic material. In addition, a non-ferrous metal sheet such as stainless steel having corrosion resistance may be formed by forming a groove, a bump, a planar portion, and a gap into a press and drilling a filler slot.

And the watering unit is preferably composed of a watering tank and a gravity spraying spraying water sprayed with a plurality of water spray nozzles formed through the bottom of the watering tank, a plurality of distribution pipes and distribution pipes branching from the distribution main and the distribution main It can also be configured as a pressurized sprinkling sprinkler to sprinkle with a plurality of sprinkling nozzles coupled to.

Here, the sprinkler tank is preferably configured in the shape of a tubular opening, but further comprises a cooling water inlet formed in communication with the one-sided wall and the opening and closing check opening formed through the one area of the upper surface is closed. It may be.

In addition, it is preferable to further include a diaphragm forming a watering area on both sides of the bottom of the watering tank.

The sump tank is preferably configured separately from the casing, but may be configured integrally with the casing bottom.

Here, the sump formed integrally with the casing may further include a transparent water level meter (transparent lake or resin plate) and a water level coupler for identifying the level of water in the sump from the outside. Cooling water is supplemented for emergency operation at a time, and a water supply guide tube is formed inside the casing and an opening and closing stopper may be provided on the outside.

And the water supply control valve is preferably composed of a water level control switch consisting of a sensing rod for sensing the water level and the solenoid valve (or electric valve) that is opened and closed by a signal of the water level control switch, the float is opened and closed according to the water level change It can also be configured as a float valve.

In addition, the fan unit is preferably composed of a cooling fan composed of a fan cylinder and an axial fan blade and a drive motor directly connected to the cooling fan, but a cooling fan composed of a fan cylinder and an axial fan fan blade and a belt driver. It can be configured as a drive motor, and the fan housing and the centrifugal fan blades are provided with a suction part coupled to the upper part of the casing at the bottom, an exhaust port at one side, and a driving motor coupling part at the upper central area. It can also be configured as a cooling fan and a driving motor.

The sump bottom may further include a dustproof member or a support mount.

 Hereinafter, various exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Prior to the description, in the accompanying drawings, for convenience of code writing, only one component is coded in one pair of components, but components that are not coded are also coded as described in the following detailed description. In the various embodiments, the same reference numerals are used to refer to components having the same configuration. In other embodiments, only components different from those of the exemplary embodiment will be described. Let's explain.

1 is a schematic perspective view of an evaporative cooling heat exchanger according to a first embodiment of the present invention, FIG. 2 is a side cross-sectional view of FIG. 1, and FIG. 3 is a schematic configuration diagram of the filler member of FIG. 1. As shown in these figures, the cross-flow evaporative cooling heat exchanger 1a, in which the coolant flows in the vertical direction and the air cross-flows in the substantially horizontal direction, has a plurality of curved portions 12a and 12b and a straight tube portion 13. Heat transfer pipe 11 repeatedly formed in meandering, fluid inlet header 14 coupled to the fluid inlet side end of the straight pipe 13, and fluid outflow coupled to the fluid outlet side end of the straight pipe 13 A pair of tube plate frames 16a and 16b supporting the header 15, the heat transfer tube 11, and a plurality of tube plate slots 18 into which the curved tube portion 12a enters and exits, and a pair of tube plate frames 16a, A heat transfer pipe part 10 including a fixing member 19 for fixing 16b); The heat exchanger tube 11 is disposed to receive and is integrally formed with the filler sheet 21a and the filler sheet 21a which are formed of a valley (not shown) and a ridge (not shown) forming a flow path and a water film of the cooling medium. Cooling water and air between the plurality of planar portions 22, the filler slot 23a formed by opening the planar portion 22, and the curved pipe portion 12a enters and receives the heat transfer pipe 11, and the filler sheet 21a. It comprises a filler member (20a) consisting of a plurality of gap projections 26 are formed integrally with the filler sheet (21a) while maintaining the flow path spacing of.

In this case, the heat transfer pipe 10 is configured to bend the curved pipe portion (12a, 12b).

In addition, the tube plate slot 18 is configured to be slightly larger than the shape of the curved tube portion 12a so that the curved tube portion 12a is smoothly inserted into or separated from the elliptical long hole.

In addition, the outer side of the tube plate frame (16a, 16b) is provided with a plurality of bolt holes (not shown) for fixing the fixing member (19).

A plurality of support tube plates 17 having a plurality of bolt holes (not shown) formed between the pair of tube plate frames 16a and 16b to secure the plurality of tube plate slots 18 and the fixing member 19 to strengthen the support. It is prepared to include more.

And the tube plate frame (16a, 16b) and the support tube plate 17 is configured to be divided into a plurality in order to facilitate insertion into the heat transfer tube 11, the plurality of divided tube plate frame (16a, 16b) and the support tube plate 17 ) May further include a coupling part (not shown) inserted into the heat transfer pipe 11 and then assembled into one.

Next, the filler member 20a has a cross-flow type in which cooling water flows vertically downward and air cross-flows in a substantially horizontal direction.

The planar portion 22 is formed to be slightly larger than the opening of the pillar slot 23a to correspond to the curvature arrangement.

The flat part 22 may further include a reinforcement groove (not shown) spaced outwardly from the filler slot 23a.

The pair of eyeglass-shaped filler slots 23a formed in the flat portion 22 are slightly larger than the outer diameter of the straight pipe portion 13 so as to be smoothly inserted into or separated from the curved pipe portion 12a so that the straight pipe portion 13 enters and exits. It is formed of an incision (not shown) which cuts the center between (not shown) and a pair of openings.

And when inserted into the bent portion (12a) on both sides of the incision portion (not shown) is bent in the opposite direction of insertion when passed through the bent portion (12a) the bend is restored to its original state by the restoring force and the heat exchange area of the mouse The part 24 is provided.

In addition, the planar portion 21a further includes a hinge groove 25 at a predetermined position spaced outwardly from the incision portion to facilitate the function of restoring the flexure to the original state due to the bending and restoring force of the mouth portion 24. Doing.

An end of the filler slot 23a may further include a collar having a predetermined height protruding in the front or rear direction of the filler sheet 21a and seated on the straight pipe 13 surface.

An eliminator 27a is provided integrally with the exhaust side end portion of the filler member 20a, and a louver 28a is provided integrally with the air supply side end portion.

In addition, the filler member 20a may be divided into a plurality of parts to facilitate the insertion and separation of the curved pipe portion 12a.

Hereinafter, the operation on the main configuration will be described.

Through the curved portion 12a of the heat transfer pipe 11 which is formed in a meandering manner by repeating the plurality of curved portions 12a and 12b coupled to the fluid inflow header 14 and the fluid outlet header 15 and the straight pipe portion 13. Insert the tube plate frame 16b in the direction of the headers 14 and 15, and continuously insert the filler member 20a, the support tube plate 14, and the filler member 20a in which the filler slot 23a has an eyeglass enhancement. After inserting the frame 16a, the fixing member 19 is passed through a bull hole formed in communication with the tube plate frame 16b and the support tube plate 14, and then a nut is attached to the screws formed at both ends of the fixing member 19. The assembly is completed by tightening.

Here, when the filler member 20a is inserted through the curved tube portion 12a, the mouth portion 24 is bent in the opposite direction to the insertion direction and passes through the curved tube portion 12a. The bending is restored to its original state and inserted along the outer surface of the straight pipe portion 13.

In order to replace the aged or damaged filler member 20a or to clean the foreign matter accumulated on the filler member 20a surface, the filler member 20a is separated from the heat transfer tube 11 in the reverse order of insertion.

By this configuration, the cooling water sprayed vertically downward through the water spraying unit (not shown) is formed by the water film formation and friction on the surfaces of the filler member 20a and the heat transfer pipe 11 forming the evaporative cooling heat exchanger 1a. While flowing water droplets are flowed toward a water collecting tank (not shown) in a flow delayed along the flow path of the filler member (20a).

On the other hand, the air flowing through the louver 28a by the action of the cooling fan (not shown) flows along the flow path of the filler member 20a and the heat pipe 11, and is formed on the surface of the filler member 20a and the heat pipe 11. Evaporative heat exchange is achieved by contact with the water film and the fine water droplets flowing, and the hot air is exhausted to the outside through the eliminator 27a and the cooling fan.

In addition, the coolant at low temperature collected while being cooled while flowing the filler member 20a and collected in a water collecting tank (not shown) is circulated back to the water spraying unit (not shown), and this circulation process is repeated.

Next, the cooling fluid (cooling water or refrigerant gas, etc.) introduced into the fluid inflow header 14 is cooled (or condensed) by the evaporative cooling heat exchanger acting outside the tube while flowing into the heat transfer pipe 11 to thereby provide the fluid outflow header 15. Through the cooling heat load facility (not shown) or the cooling heat source machine (such as a refrigerator) and the high-temperature cooling fluid that has completed heat exchange, the circulation and evaporative cooling heat exchange processes flowing back into the fluid inlet header 14 are repeated.

As a result, the flow of water is delayed so that the sprinkling cooling water makes sufficient heat exchange contact with the air, and the air flow distribution is equalized. The water droplets formed on the surface of the filler member 20a and the heat exchanger tube 11 and the fine droplets and air flowing at the same time evaporate heat exchange By making the contact, the heat exchange contact area is enlarged, and the sprinkled coolant is cooled through the filler member 20a, so that the heat exchange efficiency can be improved, and the heat transfer area and the cooling air flow amount of the heat transfer pipe 11 are increased according to the improvement of the heat exchange efficiency. It can reduce the size of the heat exchanger, it is easy to assemble and separate the filler member (20a) in the heat pipe 11 can be easy to install and repair, reducing the power consumption and repair and replacement of the cooling fan The evaporative cooling heat exchanger 1a which can reduce maintenance cost by the filler member 20a which can be provided is provided.

Figure 4 is a schematic perspective view of an evaporative cooling heat exchanger according to a second embodiment of the present invention, Figure 5 is a side cross-sectional view of Figure 4, Figure 6 is a schematic configuration diagram of the filler member of Figure 4. As shown in these figures, unlike the first embodiment described above, the counterflow type evaporative cooling heat exchanger 1b, in which the coolant flows vertically downward and the air flows oppositely vertically, is a heat pipe 11. The curved pipe parts 12a and 12b which are arranged in the vertical direction are arranged vertically.

In addition, the tube plate slot 18 inserted into the curved tube part 12a is slightly larger than the shape of the curved tube part 12a so as to be smoothly inserted into or separated from the curved tube part 12a.

Next, the heat exchanger tube 11 includes a counter sheet-type filler member 20b including a filler sheet 21b forming a valley and a ridge, a flat portion 22, a filler slot 23b, and a gap protrusion 26. Is inserted and arranged.

In addition, the flat portion 22 is configured to be slightly larger than the outer shape of the curved portion 12a so as to be smoothly inserted into or separated from the curved portion 12a, thereby forming the filler slot 23b as a vertical elliptical hole.

Hereinafter, the operation on the main configuration will be described.

Through the curved portion 12a of the heat transfer pipe 11 which is formed in a meandering manner by repeating the plurality of curved portions 12a and 12b coupled to the fluid inflow header 14 and the fluid outlet header 15 and the straight pipe portion 13. Insert the tube plate frame 16b in the header 14, 15 direction, and insert the filler member 20b, the support tube plate 14, and the filler member 20b in which the filler slot 23a of the elliptical long hole is formed. Insert the tube plate frame (16a) and then penetrate the fixing member (19) through the bulge hole formed in communication with the tube plate frame (16b) and the support tube plate (14) and then nuts on the screws formed on both ends of the fixing member (19) The assembly is completed by fastening.

In order to replace the aged or damaged filler member 20b or to clean the foreign matter accumulated on the filler member 20b surface, the filler member 20b is separated from the heat transfer pipe 11 in the reverse order of insertion.

Due to this configuration, the coolant sprayed vertically downward through the spraying part (not shown) is formed by the water film formation and friction on the surfaces of the filler member 20b and the heat transfer pipe 11 forming the evaporative cooling heat exchanger 1b. While diffusing, the water flows toward the water collecting tank (not shown) in a delayed flow along the flow path of the filler member 20b.

On the other hand, the air flowing through the louver (not shown) by the action of the cooling fan (not shown) flows along the flow path of the filler member 20b and the heat exchanger tube 11, and flows to the surface of the filler member 20b and the heat exchanger tube 11. Evaporative heat exchange is achieved by contact with the water film formed and the fine water droplets flowing, and hot air is exhausted to the outside through an eliminator (not shown) and a cooling fan.

And the coolant of the low temperature is cooled while flowing the filler member (20b) and collected in a water collecting tank (not shown) is circulated back to the water spray unit, and this circulation process is repeated.

Next, the cooling fluid (cooling water or refrigerant gas, etc.) introduced into the fluid inflow header 14 is cooled (or condensed) by the evaporative cooling heat exchanger acting outside the tube while flowing into the heat transfer pipe 11 to thereby provide the fluid outflow header 15. Through the cooling heat load facility (not shown) or the cooling heat source machine (such as a refrigerator) and the high-temperature cooling fluid that has completed heat exchange, the circulation and evaporative cooling heat exchange processes flowing back into the fluid inlet header 14 are repeated.

As a result, it is possible to provide the counter-flow evaporative cooling heat exchanger 1b as well as having the effects described in the above embodiments.

7 is a schematic side cross-sectional view of a condenser as an embodiment using the evaporative cooling heat exchanger of the present invention. As shown in the figure, a condenser (2a) using an evaporative cooling heat exchanger. A casing 31a which forms a heat exchange area and has an air supply port (not shown) for introducing air and an exhaust port (not shown) for discharging the hot exhaust gas; A fan unit 60a disposed adjacent to the exhaust port (not shown) and configured of a cooling fan 61a and a driving motor 62; A louver (28a) provided adjacent to the air supply port (not shown) and guiding the incoming air into the condenser (2a) and recovering the coolant that is released to the outside; An eliminator (27a) provided adjacent to the exhaust port and collecting water droplets scattered toward the exhaust port; The heat inflow header 11 provided in the heat exchange area and repeatedly formed in a meander with a plurality of curved pipe portions 12a and a straight pipe portion 13, and a fluid inflow header coupled to the fluid inlet side end of the straight pipe portion 13. 14, a plurality of fluid plate headers 18 coupled to the fluid outlet side end of the straight pipe portion 11, and a plurality of tube plate slots 18 supporting the heat pipe 11 and having the curved pipe portion 12a in and out. A heat transfer pipe part (10) consisting of a pair of tube plate frames (16a) formed thereon and a fixing member (19) for fixing the tube plate frames (16a); A filler sheet 21a which is arranged to receive the heat transfer tube 11 and is formed of a valley and a bump forming a flow path and a water film of a cooling medium, and a plurality of flat portions 22 formed integrally with the filler sheet 21a. And a filler slot (23a) formed by opening the flat portion (22), the curved pipe portion (12a) enters and receives the heat transfer pipe (11), and maintains a flow path distance between the filler sheets (21a) and a cooling medium flow path. An evaporative cooling heat exchanger (1a) composed of a filler member (20a) composed of a plurality of gap protrusions (26) formed integrally with the filler sheet (21a); A sprinkling portion 30a provided at an upper portion of the evaporative cooling heat exchanger 1a and spraying cooling water toward the evaporative cooling heat exchanger 1a; A water collecting tank 35a provided under the evaporative cooling heat exchanger 1a; Water supply control to control the cooling water suction pipe 41 and the cooling water supply pipe 42 and the circulation pump 40 for supplying the cooling water from the water collecting tank 35a to the watering unit 30a, and the supplemental water supplied to the water collecting tank 35a. It comprises the valve 45a.

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One side surface of the casing 31a is provided to further include an inspection opening (not shown).

In addition, the casing 31a includes a condensed water inlet pipe (not shown), a full water pipe 47, a sump drain pipe (not shown), a refrigerant gas inlet pipe (not shown), and a refrigerant liquid outlet pipe (not shown). Each through hole (not shown) which penetrates is provided further.

The bottom of the casing 31a is further provided with a drain hole 45 for draining the water generated in the casing 31a.

In addition, an opening (not shown) is formed on a front surface of the casing 31a facing the outer wall 102 to form an air supply port and an exhaust port. City).

Further, the front side upper plate (not shown) and the bottom plate (not shown) of the casing 31a further include a plurality of brackets 34 for fixing the casing 31a to the outer wall 102.

The outer frame 73 coupled to the engaging portion provided in the front opening of the casing 31a, the air supply louver 71, the exhaust louver 72, partitioning the air supply louver 71 and the exhaust louver 72 A supply and exhaust louver 70 constituted by the partition frame 74 is further provided.

Here, the air supply and exhaust louver 70 is disposed through the outer wall opening 104.

The fan unit 60a is directly connected to a cooling fan 61a including a fan cylinder (not shown) and an axial fan blade which are fixed by partitioning an exhaust port (not shown). It is composed of a drive motor 62 is fixed to the drive unit supporting member (not shown) by bolted.

Next, the sprinkling unit 30a is provided on both sides of a tubular sprinkling tank (not shown) and a plurality of sprinkling nozzles (not shown) formed at the bottom of the sprinkling tank and the bottom of the sprinkling tank, and the sprinkling area (not shown). A pair of diaphragms (not shown) and one side wall are formed to communicate with each other, and a coolant inlet (not shown) through which coolant is introduced and a plurality of brackets (not shown) are formed at the other side wall.

The sprinkling portion 30a is fixed to the inner side of the partition frame 74 with a bolt as a fastener.

Next, a cylindrical water collecting tank disposed in the casing 31a and having an upper portion opened.

(35a) is a water inlet (not shown) through which replenishment water is introduced, a condensed water generated from the evaporator of an air conditioner (indoor), a water inlet (43b) introduced through a condensed water inlet pipe, and a user for emergency operation in the case of water shortage. A water supply port 43c having a water supply guide tube (not shown) is formed inside the casing 31a and has an opening and closing plug (not shown) inside the casing 31a, a cooling water outlet port (not shown), and a water level in the sump. A water gauge coupler (not shown) to which the water level gauge 36 is coupled to the water level, a full-water pipe 47 to drain to the outside when the replenishment water is introduced above a specified water level, and a drain (not shown) to drain the cooling water in the water tank And a level switch coupling tool (not shown) to which the level switch 46 is coupled.

And a water supply control valve composed of a water supply pipe (not shown) and a solenoid valve (or electric valve) between the water supply port (not shown) configured in the water collection tank 35a and the water supply port 43a provided through the casing 31a. 45a is provided.

In addition, a drain port (not shown) formed at the bottom of the sump 35a further includes a drain valve 48.

Next, an evaporative cooling heat exchanger (1a) is provided between the watering unit (30a) and the water surface of the water collecting tank (35a).

And between the cooling water inlet (not shown) formed in the water collecting tank (35a) and the cooling water inlet (not shown) formed in the sprinkling section (30a), the cooling water suction pipe 41 and the circulation pump 40, and the cooling water discharge pipe 42 It is installed.

Next, at a predetermined position spaced apart from the water collecting tank 35a in the casing 31a, a refrigerant gas inlet 52 and a refrigerant gas outlet (not shown) are further provided, and further includes a compressor 50 for flowing the refrigerant gas. Doing.

A refrigerant gas discharge pipe 53 is further included and connected between the refrigerant gas discharge outlet (not shown) of the compressor 50 and the fluid inlet header 14 configured in the evaporative cooling heat exchanger 1a.

Next, the condensed or scattered water droplets generated in the casing 31a are collected between the opening of the water collecting tank 35a and the inner surface of the front plate of the casing 31a to guide the water collecting tank 35a. The condensation water fan 33a is further included.

Next, a plurality of dustproof members 100 are further provided between the bottom of the casing 31a and the indoor floor 101.

Hereinafter, the operation on the main configuration will be described.

Cooling water sprayed vertically downward through the water spraying portion 30a is formed by a water film formation and friction on the surface of the heat transfer tube 11 formed in the filler member 20a and the heat transfer tube portion 10 constituting the evaporative cooling heat exchanger 1a. While flowing fine water droplets are flowed toward the sump (35a) in a flow delayed along the flow path of the filler member (20a).

On the other hand, the air flowing through the air supply louvers 71 and 28a by the action of the cooling fan 61a flows along the flow path of the filler member 20a and the heat transfer pipe 11, and thus the surface of the filler member 20a and the heat transfer pipe 11. Evaporative heat exchange is achieved by contact with the water film formed in the water droplets and the fine water droplets flowing therein, and the hot air is exhausted to the outside through the eliminator 27a and the cooling fan 61a.

The low temperature cooling water, which is cooled while flowing the filler member 20a and collected in the water collecting tank, is circulated back to the water spray unit 30a, and this circulation process is repeated.

Next, the refrigerant gas introduced into the fluid inlet header 14 is condensed by evaporative cooling heat exchanger acting outside the tube while flowing into the heat transfer pipe 11, and the refrigerant liquid is cooled through a fluid outlet header 15. , The refrigerant gas flowed to the evaporator (not shown) configured in the air conditioner and the like after the heat exchange is fluid inlet header through the compressor 50.

The circulation and evaporative cooling heat exchange processes that flow back to (14) are repeated.

Next, the low temperature condensed water generated from the air conditioner (not shown) installed indoors apart from the condenser (2a) using the evaporative cooling heat exchanger is the water collecting tank (30a) through the condensed water inlet pipe (not shown) and the water supply port 43b. ) Is used as cooling water.

Next, through the condensation water fan 33a disposed in the casing 31a, the scattering water droplets generated in the casing 31a and the condensed water of the saturated wet air are collected and guided into the water collecting tank 35a to maintain cleanliness inside the casing 31a. And condensate can be used as cooling water.

Next, the user can inject supplemental water directly through the water supply port 43c to the cooling water shortened by the check of the water gauge 36 at the time of water cutting, and thus the condenser 2a may be operated even at the time of watering.

Thereby, the water flow is delayed so that the sprinkling cooling water makes sufficient heat exchange contact with the air, the air flow distribution is equalized, and the fine water droplets and the air flowing with the water film formed on the surface of the filler member and the heat pipe are simultaneously evaporated in heat exchange contact. As a result, the heat exchange contact area is enlarged and the sprinkling water is cooled through the filler member, thereby improving heat exchange efficiency, and the heat transfer area of the heat transfer pipe and the cooling air flow rate are reduced, thereby reducing the size of the heat exchanger. It is easy to assemble and separate the filler member in the heat pipe, and can be easily installed and repaired.The evaporator can reduce the maintenance cost by reducing the power consumption of the cooling fan and the filler member that can be repaired and replaced. Cooled condenser 2a may provide.

8 is a schematic side cross-sectional view of a condenser as another embodiment using the evaporative cooling heat exchanger of the present invention. As shown in the figure, unlike the above-described embodiment, the condenser 2b using the counterflow type evaporative cooling heat exchanger in which the coolant flows vertically downwards and the air flows vertically upwards, has an air conditioner casing 231. ), An evaporator 210, a cooling fan 260, a suction grill 270 for sucking indoor air, and a discharge grill 280 for discharging low-temperature air toward the room. As an integrated structure, a tubular casing 31b is formed in which a heat exchange area is formed and an exhaust port (not shown) for discharging hot exhaust gas is formed in the upper portion and a water collecting tank 35b is formed in the inner lower portion.

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Here, a side air supply (81) of the casing (31b) in the air inlet direction is provided with an air inlet 81 for introducing air to a predetermined position spaced upwardly from the water tank surface.

In addition, a suction part is formed at a bottom of the exhaust port formed at the upper part of the casing 31b, and an exhaust part 82 is formed at one side thereof, and a coupling part (not shown) is provided at the upper central area to couple the driving motor 62. A cooling fan 61b composed of a fan housing (not shown) and a centrifugal fan blade and a fan portion 60b composed of a driving motor 62 are combined.

Next, in the upper region of the casing 31b, a spraying part including a plurality of spray nozzles (not shown) coupled to the distribution main pipe (not shown), the distribution pipe (not shown), and the distribution pipe at a predetermined distance from the exhaust port. 30b is arrange | positioned.

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Next, the lower portion of the sprinkling portion 30a is connected to the heat inflow pipe 11 which is repeatedly formed in a meandering line with the plurality of curved pipe portions 12a and the straight pipe portion 13, and the fluid inlet side end of the straight pipe portion 13. A plurality of tube plate slots for supporting the fluid inflow header 14, the fluid outflow header 15 coupled to the fluid outflow side end of the straight pipe part 11, and the heat transfer pipe 11, and the curved pipe part 12a enters and exits. A heat pipe part (10) comprising a pair of tube plate frames (16a) formed with (18) and a fixing member (19) for fixing the tube plate frame (16a); The filler sheet 21b is disposed to receive the heat transfer pipe 11, and is formed with a valley and a bump forming a flow path and a water film of a cooling medium, and a plurality of flat parts 22 integrally formed with the filler sheet 21b. And a filler slot 23b formed by opening the flat portion 22 and having a curved pipe portion 12a in and out, and accommodating the heat transfer pipe 11, and maintaining a flow path gap between the filler sheets 21b and the cooling medium. And an evaporative cooling heat exchanger (1b) composed of a filler member (20b) composed of a plurality of gap protrusions (26) formed integrally with the filler sheet (21a).

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Next, a condensed water fan 33b for collecting condensed water generated from the evaporator 210 and forming a condensed water outlet (not shown) is disposed on the upper portion of the fan unit 60b, and the condensed water outlet (not shown) and the casing ( 31b) A condensed water inlet pipe 44 is connected between the condensed water inlet water supply port 43b formed in one region.

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Next, an inspection door (not shown) is provided at one side of the bottom of the casing 31b, and a bottom drain 49 is formed at the bottom thereof, and a water supply pipe (not shown), a drain pipe (not shown), and a cooling water suction pipe 41 are formed at the top thereof. ), A through hole (not shown) through which the full water pipe 47 penetrates and a through hole through which a refrigerant gas inlet pipe 51, a refrigerant gas discharge pipe 53, and a water supply pipe (not shown) pass through the side part thereof. The machine room 37 provided with the not shown) is further comprised.

Next, a compressor 50 is disposed in the machine room 37, and a refrigerant gas inlet pipe 51 is connected between the refrigerant gas inlet (not shown) evaporator 210 of the compressor 50.

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A refrigerant gas discharge pipe 53 is connected between the refrigerant gas discharge outlet (not shown) of the compressor 50 and the fluid inflow header (not shown) of the evaporative cooling heat exchanger 1b.

Next, a circulation pump 40 for circulating the cooling water is disposed in the machine room 37 and is disposed between the cooling water outlet port (not shown) formed through the bottom of the sump tank 35b and the suction port (not shown) of the circulation pump 50. The cooling water suction pipe 41 is connected, and the cooling water supply pipe 42 is connected between the discharge port of the circulation pump 50 and the cooling water inlet port (not shown) of the sprinkling part 20b.

Next, a water supply control valve 45a which is provided in the machine room 37 and is formed by an electromagnetic valve (or an electric valve) between a water supply inlet (not shown) and a water supply port 43a formed through the bottom of the water collecting tank 35b. The water supply pipe (not shown) which accommodates is connected.

A water pipe 47 is coupled to a coupling hole (not shown) formed through the bottom of the water tank 35b, and a water pipe (not shown) coupled to the drain valve 48 is connected to a lower portion of the water pipe 47. It is.

Hereinafter, the operation on the main configuration will be described.

Cooling water sprayed vertically downward through the spraying portion 30a is a flow path of the filler member while diffusing fine water droplets due to water film formation and friction on the surface of the filler member constituting the evaporative cooling heat exchanger 1b and the heat transfer tube portion. It flows toward the sump 35b with the delayed flow along.

On the other hand, the air flowing through the air supply port 81 by the action of the cooling fan 61b flows along the flow path of the filler member and the heat transfer tube, and is contacted by water droplets formed on the surface of the filler member and the heat transfer tube and the fine water droplets flowing. Evaporative heat exchange is achieved and hot air is exhausted to the outside through the eliminator 27b and the cooling fan 61b.

Here, the air supply port 81 and the exhaust port 82 may be connected to a corrugated pipe (or duct) to supply air from the outside and exhaust the air to the outside.

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The coolant of the low temperature, which is cooled while flowing the filler member and collected in the water collecting tank 35b, is circulated back to the water spray unit 30b, and this circulation process is repeated.

Next, the refrigerant gas introduced into the fluid inflow header (not shown) is condensed by the evaporative cooling heat bridge acting outside the tube while flowing into the heat transfer tube, and the refrigerant liquid is flowed to the evaporator 210 through the fluid outlet header (not shown). After the heat exchange, the refrigerant gas is circulated and the evaporative cooling condensation process is introduced again into the fluid inlet header through the compressor (50).

Next, the low temperature condensed water generated from the evaporator 210 is introduced into the sump tank 35b through the condensed water inlet pipe 44 and the condensed water inlet water supply port 43b and used as cooling water.

Thereby, the condenser 2b using the evaporative cooling heat exchanger having the effects described in the above-described embodiments as well as being integrally configured within the limited space in the air conditioner casing 231 can be provided.

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Figure 9 is a schematic side cross-sectional view of a condenser as another embodiment using the evaporative cooling heat exchanger of the present invention. As shown in the figure, unlike the above-described embodiment, the condenser 2c using the evaporative cooling heat exchanger is installed as an counterflow type that is installed outdoors and the coolant flows vertically downward and the air flows vertically upward. The casing 31c, which forms a heat exchange area and has an exhaust port (not shown) for discharging hot exhaust gas at the upper portion thereof, is fixed to the upper portion of the water collecting tank 35c.

Next, the air supply port (not shown) formed between the upper end of the sump 35c and the lower end of the casing 31c is provided with a louver 28d for guiding air into the condenser 2c and recovering the coolant that is separated out. .

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Next, a cooling fan 61c composed of a fan cylinder (not shown), an axial fan blade, a belt driver (not shown), and a driving motor communicate with an exhaust port formed in the central region of the casing 31c. A fan portion 60c constituted by 62 is coupled.

Next, in the lower portion of the exhaust port of the casing 31c, a distribution main pipe (not shown) for introducing cooling water, a plurality of distribution pipes (not shown) branched from the distribution main pipe, and a plurality of spray nozzles (not shown) coupled to the distribution pipe. ) And a watering unit 30b for spraying the cooling water toward the evaporative cooling heat exchanger 1b.

A refrigerant flow pipe 53 is connected between a fluid inlet header (not shown) configured in the evaporative cooling heat exchanger 1b and a discharge port of a compressor (not shown) disposed in a unit (not shown) spaced apart from each other. A refrigerant liquid outlet pipe 55 is connected between an outlet header (not shown) and an evaporator (not shown) configured in a unit spaced apart from each other.

Next, an evaporative cooling heat exchanger 1b is disposed below the sprinkling portion 30b.

Next, the cooling water inlet pipe 41 is provided between the cooling water outlet port (not shown) formed in the water collecting tank 35c and the suction port of the circulation pump 40 and supplies the cooling water to the water spraying unit 30b, and the discharge port of the circulation pump 40 is provided. The cooling water supply pipe 42 is connected between the sprinkling parts 30b.

Next, an eliminator 27b for collecting water droplets scattered toward the cooling fan 61c is disposed above the sprinkling portion 30b.

Next, when the water level of the water collection tank 35c is lowered by the cooling water evaporated during the evaporative cooling heat exchange process, the water supply control valve 45b composed of a float valve is provided to supply the supplementary water and automatically shut off the water supply when the supplementary water is supplied to a predetermined level. It is coupled to a water supply port 43a for supplying water.

Next, a support stand (not shown) for supporting the condenser 2c is provided at the bottom of the sump.

Hereinafter, the operation on the main configuration will be described.

Cooling water sprayed vertically downward through the spraying part 30b is delayed along the flow path of the filler member while spreading fine droplets due to water film formation and friction on the surface of the filler member and the heat exchanger tube forming the evaporative cooling heat exchanger 1b. Flows toward the sump 35c.

On the other hand, the air flowing through the louver 28d by the action of the cooling fan 61c flows along the flow path of the filler member and the heat transfer pipe, and is contacted by the water droplets formed on the surface of the filler member and the heat transfer pipe and the fine water droplets flowing through the contact. After exchange, the hot air is exhausted to the outside through the eliminator 27b and the cooling fan 61c.

The coolant of the low temperature, which is cooled while flowing in the filler member and collected in the water collecting tank, is circulated back to the water spray unit 30b, and this circulation process is repeated.

Next, the refrigerant gas introduced through the refrigerant gas discharge pipe 53 and the fluid inlet header flows into the heat transfer tube, and the refrigerant liquid condensed by the evaporative cooling heat exchanger acting outside the tube is connected to the fluid discharge header and the refrigerant liquid outlet pipe 55. The refrigerant gas flowing through the evaporator configured in the spaced apart unit and completed the heat exchange is repeated with the circulation and evaporative cooling condensation process flowing back into the fluid inlet header 14.

As a result, it is possible to provide the condenser 2c having the effect described in the above-described embodiment as well as using an evaporative cooling heat exchanger installed outdoors.

In the above-described embodiment, the heat transfer tube composed of a circular straight tube portion and a curved tube portion has been described above, but it may also be configured as a heat transfer tube composed of a straight tube portion and a curved tube portion of another shape such as an oval shape.

In the above-described embodiment, the crossflow evaporative cooling heat exchanger 1a in which air flows in a substantially horizontal direction and the coolant flows in a vertical downward direction, and the counterflow type evaporator in which air flows in a vertical upward direction and the coolant flows in a vertical downward direction Although the cooling heat exchanger 1b has been described above, it is also applicable to a parallel flow evaporative cooling heat exchanger in which air and cooling water flow in the same direction.

In addition, in the above-described embodiment, the condenser using the evaporative cooling heat exchangers 1a and 1b has been described above. However, the condenser using the evaporative cooling heat exchangers 1a and 1b may also be applied as an evaporative cooling cooling tower for cooling the cooling water, and an evaporative cooling cooler for cooling other fluids such as oil. Of course, can also be applied to.

In the above-described embodiment, the evaporative cooling condenser configured integrally with the air conditioner 200
Although the counterflow type evaporative cooling heat exchanger 1b has been described above in (2b), it can also be configured as a crossflow evaporative cooling heat exchanger 1b.

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In the above-described embodiment, the evaporative cooling condenser 2b is integrally formed in the air conditioner casing 231, but the evaporative cooling condenser is separated in the air conditioner casing 231 and separated from the air conditioner casing 231. (2b) can also be comprised.

The technical construction of the present invention can be variously applied in the art of condenser, cooling tower and cooler, and is not limited to the above-described embodiment, and the scope of the present invention should be limited only by the claims described in the following claims. will be.

As described above, according to the present invention, the heat exchange efficiency can be improved, the size and power consumption of the heat exchanger can be reduced, and the structure of easy assembly and separation can simplify the installation and maintenance, and the maintenance Provide an evaporative cooling heat exchanger that can reduce costs.

Claims (15)

In the evaporative cooling heat exchanger that cools the cooling fluid or condenses the refrigerant, Heat transfer pipe formed by meandering repeatedly to a plurality of curved pipe and straight pipe, A fluid inlet header coupled to the fluid inlet side end of the straight pipe; A fluid outlet header coupled to the fluid outlet side end of the straight pipe; A plurality of tube plate frames which support the heat transfer tube and are formed with a plurality of tube plate slots through which the curved tube part is inserted; A heat transfer tube part configured of a fixing member for fixing the tube plate frame; A filler sheet disposed to receive the heat transfer tube and formed of a valley and a bump forming a flow path of the coolant and air and a water film; A plurality of planar portions formed integrally with the filler sheet; A filler slot formed by opening the flat part and having a curved pipe part in and out to receive the heat transfer pipe; Evaporative cooling heat exchanger is formed integrally with the filler sheet and comprises a filler member consisting of a plurality of gap projections to maintain the interval between the cooling water and air between the filler sheets. The method of claim 1, The filler member includes a cross-flow filler member in which air flows almost horizontally and coolant flows vertically downward, and a counterflow filler member in which air flows vertically upward and coolant flows vertically downward, in the same direction as air and coolant. Evaporative cooling heat exchanger comprising any one of the parallel flow-type filler member flowing to the. The method of claim 1, The filler slot is an elliptical hole-shaped filler slot in which the curved pipe portion is entering and exiting, When inserted into the curved pipe portion is bent in the opposite direction to insert and when passing through the curved pipe portion is characterized in that any one of the spectacle-shaped filler slot comprising a mouse portion to be restored to the original state by the restoring force Evaporative cooling heat exchanger. The method of claim 2, The crossflow filler member further comprises a louver formed at the air supply side end and an eliminator formed at the exhaust side end. delete delete delete delete delete delete delete delete delete delete delete

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