KR20060083928A - Evaporative cooling type heat exchanging unit - Google Patents

Abstract

The present invention relates to an evaporative cooling heat exchange unit for cooling a cooling fluid or condensing a refrigerant, the casing having a heat exchange area, an air inlet for introducing air, and an exhaust port for discharging hot exhaust gas; A fan unit disposed adjacent to the exhaust port and configured of a cooling fan and a driving motor; A louver provided adjacent to the air supply port and guiding the incoming air into the heat exchange area 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 tube disposed in the heat exchange area and repeatedly formed in a meandering manner with a plurality of curved and straight pipe portions, a fluid inflow header coupled to the fluid inflow side end portion of the straight pipe portion, a fluid outflow header coupled to the fluid outlet side end portion of the straight pipe portion, A heat transfer tube part configured to support a heat transfer tube and include a plurality of tube plate frames formed with a plurality of tube plate slots through which the curved tube part enters and exits, and a fixing member for fixing the tube plate frame; 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 An evaporative cooling heat exchanger comprising a filler slot accommodating a heat transfer tube and a filler member integrally formed with the filler sheet and having a plurality of gap protrusions which maintain a distance between the cooling water and the air between the filler sheets; A sprinkling unit provided at an upper portion of the evaporative cooling heat exchanger and spraying the cooling water toward the evaporative cooling heat exchanger; A water collecting tank provided under the evaporative cooling heat exchanger; It characterized in that it comprises a cooling water supply pipe and a circulation pump for supplying cooling water from the water tank to the water spray. As a result, the heat exchange efficiency can be improved, the size and power consumption of the evaporative cooling heat exchanger can be reduced, and the structure is easy to assemble and separate, simplifying installation and repair, and reducing maintenance costs. It provides an evaporative cooling heat exchange unit.

Evaporative Cooling Heat Exchanger, Evaporative Cooling Heat Exchanger, Filler, Heat Pipe

Description

Evaporative cooling type heat exchanging unit

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;

Figure 7 is a schematic side cross-sectional view of the evaporative cooling heat exchange unit as an embodiment using the evaporative cooling heat exchanger of the present invention,

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

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

10 is a side cross-sectional view of an evaporative cooling heat exchanger unit having a conventional evaporative cooling heat exchanger;

11 is a side cross-sectional view of another evaporative cooling heat exchanger unit 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: evaporative cooling heat exchanger unit

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 exchange unit, and more particularly, to an evaporative cooling heat exchange unit using an evaporative cooling heat exchanger having a filler in a heat transfer tube.

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.

Machine that cools or cools the cooling fluid or condenses the refrigerant, and uses the latent heat of evaporation generated by the contact of air with the cooling water flowing in the evaporative cooling heat exchanger to cool and heat the cooling fluid (coolant, oil, air, etc.) or refrigerant gas. And the apparatus, evaporative cooling enclosed cooling tower for cooling water, evaporative cooling cooler or heat exchanger for cooling oil and air, and evaporative cooling condenser for condensing refrigerant, but all of them are evaporative cooling Since the action and configuration of the cooling heat exchange using the latent heat of evaporation of the heat exchanger are in the same category, the present invention will be collectively referred to as an "evaporative cooling heat exchange unit".

Conventional condensers include an air cooled condenser using air as a cooling medium, an evapora tive cooling type heat exchanging unit using air and cooling water as a cooling medium, and cooling water supplied from a cooling tower. It is divided into water cooled condenser which is a cooling medium.

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, temperature-controlled expansion valve themostatic expansion valve or capillary tube, check valve to prevent backflow, safety valve, fusible plug, bypass refrigerant pipe and , Control boxes, etc., but these are known Tube parts can be mounted as required or optional depending on the configuration of the device, associated with the parts of the compressor part may be constructed in which the evaporator unit is configured.

And the air-cooled condenser is a heat pipe (coil) consisting of a plurality of u-bend and straight pipe, and inserted into the straight pipe at a pitch of approximately 2 ~ 6mm, aluminum plate (or copper plate) of approximately 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 curved pipe and the header are welded to the end portion of the straight pipe drawn out through the pipe plate 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 the advantage that it can be easily installed, compared to the evaporative cooling heat exchange unit and the water-cooled condenser, while cooling by sensible heat heat exchange within the temperature difference range between the dry air bulb temperature and the refrigerant liquid. Due to the characteristics, the condensation efficiency is low (especially refrigeration below the atmospheric temperature), and in summer, when the air dry bulb temperature exceeds the design dry bulb temperature (32 ℃ DBT), the condensation efficiency corresponding to the temperature rise decreases. Occasional driving disorders may occur.

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, heat transfer area of the heat pipe, cooling air, and the size of the condenser are about 40-50% or more than those of the evaporative cooling heat exchange unit. There is 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 shock, and may impair the air flow, and the periodic management to remove air foreign matter accumulates between densely formed cooling fins, Damaged cooling fins are difficult to replace and repair, resulting in the inefficiency of replacing 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) has a corresponding cooling heat loss (energy) in a configuration in which a part of the air cooling air in the room 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 advantage 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 water and water supply pipes should be followed. Has the disadvantage of becoming complicated.

In the conventional conventional integrated air conditioner, which integrates the configuration of the evaporative cooling heat exchange unit into the air conditioner, the coolant is condensed by sprinkling the cooling water on the surface of the heat transfer tube composed of bare tubes, but evaporates in a limited air conditioner space. Constraints in constructing a cooling heat exchanger unit, and the coolant sprayed on the heat pipes at low drop water drop heights flows into the sump tank (or water tank) without delay. There is a problem that this is lowered.

Therefore, the structure in which the evaporative cooling heat exchange unit is integrated into the air conditioner is not successful in terms of space and condensation efficiency.

Next, an evaporative cooling heat exchanger unit 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 an evaporative cooling heat exchanger unit having a conventional evaporative cooling heat exchanger. As shown in the figure, the conventional evaporative cooling heat exchanger unit 300a having an evaporative cooling heat exchanger is a counterflow type, which forms a heat exchange area and forms an exhaust opening (not shown) for discharging hot exhaust gas in the upper central area. The casing 331 is fixed to the water collecting tank 335.

Next, formed between the upper end of the sump tank 335 and the lower end of the casing 331, the air inlet (not shown) for introducing air guides the air into the evaporative cooling heat exchange unit 300a and recovers the coolant that escapes to the outside. A pair of louvers 328 are provided.

Next, a driving fan (not shown) consisting of a cooling fan (not shown), a fan cylinder (not shown) for accommodating the cooling fan, a belt driver (not shown), and a driving motor (not shown), and a driving part 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, the distribution pipe (not shown) for introducing the cooling water, a plurality of distribution pipes (not shown) branched from the distribution pipe and a plurality of sprinkling nozzles (not shown) coupled to the distribution pipe and the heat transfer tube portion 310 The spraying portion 330b for spraying the cooling water toward the () is spaced apart from the exhaust port formed in the casing 331.

Next, a cooling water suction 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 of the circulation pump 340. The cooling water supply pipe 342 is connected between the spraying portions 340b.

Next, an eliminator 327 is disposed above the sprinkling unit 330b to recover the water droplets scattered toward the cooling fan (not shown) into the evaporative cooling heat exchange unit 300a.

Next, a plurality of heat pipes (311) consisting of a meandering repeatedly in a plurality of straight pipes (not shown) and curved pipes (not shown), a fluid inflow header 314 for introducing the refrigerant gas from the compressor (not shown), An evaporative cooling heat exchanger (310) consisting of a fluid outflow header (315) for outflowing the refrigerant liquid to an evaporator (not shown) is provided with a predetermined spraying interval under the spraying portion (330b).

Next, a water supply control valve 345 configured to replenish the cooling water evaporated during the evaporative cooling heat exchange process and to supply the supplementary water when the water collection tank 335 becomes low and to automatically shut off the water supply when the supplementary water is supplied to a predetermined level. Is coupled to the water inlet 343.

Next, a support stand (not shown) for supporting the evaporative cooling heat exchange unit 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.

The refrigerant gas introduced through the fluid inlet header 314 from the compressor disposed in the unit (not shown) spaced apart is condensed by evaporative cooling while flowing in the heat transfer tube 311, and the refrigerant liquid condensed is the fluid outlet header 315. It is supplied to the evaporator (not shown) configured in units (not shown) spaced apart through the () and this refrigerant circulation process is repeated.

In the conventional evaporative cooling heat exchanger having the evaporative cooling heat exchanger 300a, the coolant falling into the space between the straight pipes flows into the water collection tank 335 without passing through the outer surface of the heat pipe, and without delay in the heat exchange region. Countless water droplets flowing rapidly and the water film formed on the surface of the heat transfer tube 311 and the evaporation heat exchange while contacting the air, the increase parameters may vary depending on the configuration, use and operating conditions of the evaporative cooling heat exchange unit, Used in water-cooled condensers, air flow rate and air flow resistance are increased compared to counterflow cooling towers with filler elements as heat exchanger, increased power consumption of cooling fans (about 30 to 40%) and condenser product sizes (about 50 to 50%). 100%), so there is a problem that the initial investment and operating costs are also increased.

11 is a side cross-sectional view of another evaporative cooling heat exchanger unit having a conventional evaporative cooling heat exchanger. As shown in the figure, unlike the other evaporative cooling heat exchanger 300a having the conventional evaporative cooling heat exchanger described above, the flash-cooled heat exchanger unit 300b having the conventional evaporative cooling heat exchanger is a cross-flow type. In addition, the filler member 320 is further included in a predetermined region of the upper portion, the lower portion, and the central portion of the heat transfer tube 310.

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 is dispersed in the water droplets, and the contact with the water film formed on the surface of the filler member 320 and the heat transfer tube 311 to achieve evaporative heat exchange and Air is exhausted to the outside through the eliminator 327 and the cooling fan.

The conventional evaporative cooling heat exchange unit 300b having an evaporative cooling heat exchanger distributes the coolant sprayed on the surface of the heat transfer tube 311 evenly and delays the flow of the coolant flowing through the heat exchange area, thereby exchanging the heat exchange efficiency of the coolant. Although the filler member 320 is provided to improve the cooling water, 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 transfer pipe, and is in the heat transfer pipe 311 region. It is a characteristic that heat exchange is performed while numerous water droplets and air flowing in contact with water film formed on the surface of the heat transfer tube 311 without delay are increased. However, the air flow rate and air flow resistance are higher than that of the cross flow type cooling tower, which is used as a water-cooled condenser and uses the filler member as a heat exchange part. Increasing the power consumption of the cooling fan (about 30 to 40%) and increasing the size of the condenser product (about 50 to 100%) increases the initial investment and operating costs, and the weight of the heat pipe consisting of a plurality of units ( Since the filler member 320 is configured to be in close contact with each other, the support member is complicated and there is a problem of increasing the cost.

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 unit.

In order to achieve the above object, the present invention, in the evaporative cooling heat exchange unit for cooling the cooling fluid or condensing the refrigerant, forming a heat exchange region, having an air inlet and an exhaust port for discharging the hot exhaust Casing; A fan unit disposed adjacent to the exhaust port and configured of a cooling fan and a driving motor; A louver provided adjacent to the air supply port and guiding the introduced air into the heat exchange zone and recovering the coolant that is separated outwardly; An eliminator provided adjacent to the exhaust port and recovering droplets scattered toward the exhaust port; Heat exchanging tube bundles arranged in the heat exchange area and formed of serpentine by repeating a plurality of curved parts (u-bend) and straight tubes (straight tubes), and at the fluid inlet side end of the straight tubes. 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, and a plurality of tube shet slots that support the heat pipe and the curved portion enters and exits. A heat transfer tube part including a plurality of tube sheet frames formed therein and a fixing member for fixing the tube sheet frame; 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; An evaporative cooling heat exchanger (evaporative cooling heat exchanger) consisting of a filler member composed of a plurality of spacers for maintaining a space; 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 provides an evaporative cooling heat exchange unit comprising a cooling water supply pipe and a circulation pump for supplying cooling water from the water collection tank to the water spray.

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), 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 as 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 screws to fasten the screw at both ends, it is also composed of a fixing member of flat iron or section steel bolted to the tube plate frame You may.

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 corresponding 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 tube portion arrangement of the heat transfer tube is preferably configured to be slightly larger than the curved tube portion so as to be smoothly inserted into or separated from the curved tube 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 outwardly from the incision portion to facilitate restoration to the original state of the bend and the bend when the mouth portion is inserted into or separated from the bend 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 further formed integrally with the air inlet side end portion, and may further include an eliminator integrally with the exhaust side end portion.

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

In addition, the filler member may be formed by vacuum molding into a plastic film such as polypropylene or polyvinyl chloride having heat resistance, but may be formed by injection molding from a plastic material. It is also possible to form the grooves, bumps, flat portions, and gap projections by pressing a non-ferrous metal sheet such as stainless steel having corrosion resistance, and punching a filler slot.

The evaporative cooling heat exchange unit further includes a compressor for compressing and flowing refrigerant gas, a refrigerant gas inlet tube for introducing refrigerant gas from the evaporator, and a refrigerant gas discharge tube for flowing refrigerant gas from the compressor to the evaporative cooling heat exchanger. It can also be configured.

In addition, the evaporative cooling heat exchange unit is preferably configured to have a structure installed in the interior in communication with the outer wall opening, but may also be configured in a structure that is integrally installed in the air conditioner (indoor) casing, the structure is installed outdoors It can also be configured.

In addition, the bottom of the sump tank is equipped with a compressor and a circulation pump, it may be configured to further include a machine room in which a check hole, a predetermined ventilation hole and the pipe through-hole is 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.

When the evaporative cooling heat exchange unit is installed indoors, the air supply and exhaust ports may further include an air supply and exhaust louver disposed at the outer wall opening and divided into an air supply louver and an exhaust louver.

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 sprinkling tank is preferably configured in a cylindrical shape of the upper opening, but further comprises a cooling water inlet is formed in communication with one side wall and the opening and closing check opening formed to close the upper portion and penetrates one region of the upper surface. You may.

In addition, it is preferable to further comprise a diaphragm to form 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 level gauge (transparent lake or resin plate) and a level gauge coupler that can check the water level from the outside in the sump. Cooling water is supplemented for emergency operation when water is supplied, and a water supply guide tube is formed inside the casing and an opening and closing stopper is 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. And a driving motor, and a fan housing and a centrifugal fan blade having a suction part coupled to the upper part of the casing, an exhaust port formed at one side, and a driving motor coupling part provided 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 for supporting the header 15, the heat pipe 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 and 16b. Heat transfer tube portion 10 is composed of a fixing member 19 for fixing the; 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.

Here, 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 outside 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.

Here, the flat portion 22 may further include a reinforcing groove (not shown) to be spaced outward 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 action of restoring the bending state by the bending and restoring force of the mouth portion 24 further. It consists.

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 mouse portion 24 is bent in the opposite direction to the insertion and passes through the curved tube portion 12a, and at the same time, the mouth portion 24 is restored by the restoring force. The curvature is restored to the original state is 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 and 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 after heat exchange is repeated the circulation and evaporative cooling heat exchange process flowing back into the fluid inlet header (14).

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 of the heat transfer pipe 11 and the cooling air flow amount are improved by improving the heat exchange efficiency. This reduces the size of the heat exchanger, the structure of easy assembly and separation of the filler member (20a) in the heat pipe 11 can be easily installed and repaired, reducing the power consumption and maintenance of the cooling fan and The replaceable filler member 20a is provided with an evaporative cooling heat exchanger 1a capable of reducing maintenance costs.

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 tube portion 12a so as to be smoothly inserted into or separated from the curved tube 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. The tube plate frame 16b is inserted in the direction of the headers 14 and 15, and 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 are continuously inserted and the tube plate 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.

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 and 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 after heat exchange is repeated the circulation and evaporative cooling heat exchange process flowing back into the fluid inlet header (14).

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.

Figure 7 is a schematic side cross-sectional view of the evaporative cooling heat exchange unit as an embodiment using the evaporative cooling heat exchanger of the present invention. As shown in the figure, the evaporative cooling heat exchange unit (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 evaporative cooling heat exchange unit (2a) and recovering the coolant that is separated from 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.

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).

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 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 the bottom of the sprinkling tank and a plurality of sprinkling nozzles (not shown) and the sprinkling tank bottom. A pair of diaphragms (not shown) and one side wall forming () 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 on 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, the 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 portion 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, a refrigerant gas inlet 52 and a refrigerant gas outlet (not shown) are formed at a predetermined position spaced apart from the water collecting tank 35a in the casing 31a, and further includes a compressor 50 for flowing the refrigerant gas. I am preparing.

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 and guided to the water collecting tank 35a. A 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 inflow header 14 is condensed by the evaporative cooling heat exchanger acting out of 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 an evaporator (not shown) constituted in a cooler, an air conditioner, etc., and has undergone heat exchange is passed through a 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 evaporative cooling heat exchange unit 2a using the evaporative cooling heat exchanger is a condensed water inlet pipe (not shown) and the water supply port 43b. Through the inflow into the sump (30a) is utilized as cooling water.

Next, through the condensation water fan 33a disposed in the casing 31a, the scattering droplets generated in the casing 31a and the condensed water of saturated wet air are collected and guided into the water collecting tank 35a to clean the inside of the casing 31a. Oil 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 lacked by the check of the water gauge 36 at the time of watering, so that the evaporative cooling heat exchange unit 2a can be operated even at the time of watering. Can be.

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. The cooled heat exchange unit 2a can be provided.

8 is a schematic side cross-sectional view of an evaporative cooling heat exchange unit as another embodiment using the evaporative cooling heat exchanger of the present invention. As shown in the figure, unlike the above-described embodiment, the evaporative cooling heat exchange unit (2b) using a counterflow type evaporative cooling heat exchanger in which the cooling water flows vertically downwards and the air flows vertically upwards, An air conditioner comprising a air conditioner casing 231, an evaporator 210, an air conditioner fan 260, a suction grill 270 for sucking indoor air, and a discharge grill 280 for ejecting low temperature air toward the room. As a unitary structure in the 200, an exhaust port (not shown) is formed in the upper portion and a hot exhaust gas is discharged in the upper portion, and a cylindrical casing 31b is formed in the lower portion in the inner portion to form a water collecting tank 35b. .

Here, a side air supply (81) of the casing (31b) in the air inflow 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 coupled.

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

Next, the lower portion of the sprinkling portion 30a is connected to the heat inflow pipe 11 formed by meandering repeatedly in a 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 plates that support the fluid inlet header 14, the fluid outlet header 15 coupled to the fluid outlet side end of the straight pipe section 11, and the heat pipe 11, and the curved tube section 12a enters and exits. A heat pipe part (10) comprising a pair of tube plate frames (16a) in which slots (18) are formed, and a fixing member (19) for fixing the tube plate frames (16a); The filler sheet 21b is disposed 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 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).

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 part of the fan unit 60b, and the condensed water outlet (not shown) and the casing are disposed. A condensed water inlet pipe 44 is connected between the condensed water inlet water supply port 43b formed in one region.

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 (up) 41), a through hole (not shown) through which the full water pipe 47 is provided, and a through hole through which the refrigerant gas inlet pipe 51, the refrigerant gas discharge pipe 53, and the water supply pipe (not shown) pass through the side part. The machine room 37 in which (not shown) is provided 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.

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 formed between the cooling water outlet port (not shown) and the suction port (not shown) formed through the bottom of the sump tank 35b. 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 the water supply inlet (not shown) and the water supply port 43a formed through the bottom of the water collecting tank 35b. ) Is connected to a water supply pipe (not shown).

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 it to the outside.

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 evaporative cooling heat bridge acting outside the tube while flowing into the heat transfer tube, and the refrigerant liquid flows 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.

As a result, it is possible to provide the evaporative cooling heat exchange unit 2b using the evaporative cooling heat exchanger having the effects described in the above-described embodiments as well as being integrally configured in the limited space in the air conditioner casing 231. .

Figure 9 is a schematic side cross-sectional view of an evaporative cooling heat exchange unit as another embodiment using an evaporative cooling heat exchanger of the present invention. As shown in the figure, unlike the above-described embodiment, the evaporative cooling heat exchange unit 2c using the evaporative cooling heat exchanger is installed outdoors, the coolant flows vertically downward and the air flows vertically upward. As a counter flow type, a casing 31c is formed at the top of the sump 35c, which forms a heat exchange area and is provided with an exhaust port (not shown) for discharging the hot exhaust at the top.

Next, the air inlet (not shown) formed between the upper end of the sump (35c) and the lower end of the casing (31c) is a louver for guiding air into the evaporative cooling heat exchange unit (2c) and recovering the cooling water from the outside 28d).

Next, a cooling fan 61c consisting of a fan cylinder (not shown), an axial fan blade, a belt driver (not shown), and a driving motor are in communication with the exhaust port formed in the central region of the casing 31c. The fan part 60c comprised of 62 is couple | bonded.

Next, a distribution main pipe (not shown) for introducing cooling water, a plurality of distribution pipes (not shown) branched from the distribution pipe, and a plurality of spray nozzles (not shown) are disposed below the exhaust port of the casing 31c. And a spraying 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 while supplying the cooling water to the sprinkling unit 30b and the discharge port of the circulation pump 40. The cooling water supply pipe 42 is connected between the water and the spraying portion (30b).

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

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

Next, a support stand (not shown) for supporting the evaporative cooling heat exchange unit 2c is provided at the bottom of the sump tank.

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 outlet 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 the fluid outlet header and the refrigerant liquid outlet pipe 55. The refrigerant gas flowing to the evaporator configured in the spaced apart unit and completed the heat exchange is repeated the circulation and evaporative cooling condensation process flowing back into the fluid inlet header (14).

As a result, it is possible to provide the evaporative cooling heat exchange unit 2c using the evaporative cooling heat exchanger having the effect described in the above-described embodiment as well as 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 evaporative cooling heat exchange unit using the evaporative cooling heat exchangers 1a and 1b has been described above for condensing the refrigerant, but may also be applied as an evaporative cooling heat exchange unit for cooling the cooling water. Of course, it can also be applied as an evaporative cooling heat exchange unit for cooling other fluids such as oil.

In the above-described embodiment, the counterflow type evaporative cooling heat exchanger 1b is configured in the evaporative cooling evaporative cooling heat exchange unit 2b integrally formed with the air conditioner 200, but the cross flow type evaporative cooling heat exchanger is described above. It can also be comprised with the group 1b.

In the above-described embodiment, the evaporative cooling heat exchange unit 2b is integrally formed in the air conditioner casing 231, but the evaporative cooling type is separated in the air conditioner casing 231 and separated from the air conditioner casing 231. The evaporative cooling heat exchange unit 2b may be configured.

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 Provided is an evaporative cooling heat exchanger capable of reducing costs and an evaporative cooling heat exchange unit using the same.

Claims (7)

In an evaporative cooling heat exchange unit for cooling a cooling fluid or condensing a refrigerant, A casing which forms a heat exchange area and has an air supply port for introducing air and an exhaust port for discharging the hot exhaust gas; A fan unit disposed adjacent to the exhaust port and configured of a cooling fan and a driving motor; A louver provided adjacent to the air supply port and guiding the introduced air into the heat exchange zone and recovering the coolant that is separated outwardly; An eliminator provided adjacent to the exhaust port and recovering droplets scattered toward the exhaust port; A heat transfer tube disposed in the heat exchange region and repeatedly formed in a meander with a plurality of curved pipes and a 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; It is formed by opening the flat portion and the bent pipe portion enters and receives the heat transfer pipe An evaporative cooling heat exchanger formed of a ruslot and a filler member integrally formed with the filler sheet and comprising a plurality of gap protrusions which 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; Evaporative cooling type heat exchange unit comprising a cooling water supply pipe and a circulation pump for supplying cooling water from the water tank to the water spray. The method of claim 1, The casing is provided with a front opening forming an air supply port and an exhaust port facing the outer wall opening, the front opening having an outer frame, a partition frame partitioning the air supply region and the exhaust region, an air supply louver provided in the air supply region, Evaporative cooling heat exchange unit characterized in that it further comprises a supply and exhaust louver composed of an exhaust louver provided in the exhaust area. The method of claim 1, The cooling fan includes an axial cooling fan including a fan cylinder and an axial blade, a driving motor coupling part at an upper part thereof, an intake part coupled to an upper casing part at a lower part thereof, and a fan housing and a centrifugal fan at which one side is formed with an exhaust port. Evaporative cooling heat exchange unit comprising any one of a centrifugal cooling fan consisting of a wing type. 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 exchange unit comprising any one of the parallel flow filler member flowing to the. The method of claim 1, The watering unit is a gravity watering unit comprising a watering tank and a plurality of watering nozzles formed through the bottom of the watering tank, and a plurality of distribution pipes and distribution pipes branched from the distribution pipe and the distribution pipe to which the coolant flows. Evaporative cooling heat exchange unit comprising any one of the pressurized spraying portion consisting of the spraying nozzle. The method of claim 1, One of the lower part of the sump and one side of the casing further includes a machine room in which a compressor is installed to compress the refrigerant gas flowing from the evaporator through the refrigerant gas inlet pipe and flow the refrigerant through the gas discharge pipe to the evaporative cooling heat exchanger. Evaporative cooling heat exchange unit, characterized in that configured to. The method of claim 1, The evaporative cooling heat exchange unit is any one of being installed indoors in communication with the outer wall opening, and integrally installed in the air conditioner (indoor) casing, and installed outdoors. unit.

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