WO2010058978A2 - Refroidisseur évaporatif régénératif, système de refroidissement et module central de ce dernier - Google Patents

Refroidisseur évaporatif régénératif, système de refroidissement et module central de ce dernier Download PDF

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Publication number
WO2010058978A2
WO2010058978A2 PCT/KR2009/006827 KR2009006827W WO2010058978A2 WO 2010058978 A2 WO2010058978 A2 WO 2010058978A2 KR 2009006827 W KR2009006827 W KR 2009006827W WO 2010058978 A2 WO2010058978 A2 WO 2010058978A2
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WO
WIPO (PCT)
Prior art keywords
channel
wet
gun
channel portion
evaporated water
Prior art date
Application number
PCT/KR2009/006827
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English (en)
Korean (ko)
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WO2010058978A3 (fr
Inventor
이대영
Original Assignee
한국과학기술연구원
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Application filed by 한국과학기술연구원 filed Critical 한국과학기술연구원
Priority to US13/130,321 priority Critical patent/US20110232315A1/en
Publication of WO2010058978A2 publication Critical patent/WO2010058978A2/fr
Publication of WO2010058978A3 publication Critical patent/WO2010058978A3/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/54—Free-cooling systems

Definitions

  • the present invention relates to an evaporated water supply structure of a regenerative evaporative air conditioner and a structure of a core module thereof.
  • the regenerative evaporative air conditioner is operated by cooling part of the air in the dry channel by inducing water evaporation by adding some of the air passing through the dry channel into the wet channel in which the water is moistened. At the wet channel surface, water evaporates to cool the wet channel surface and absorbs heat from the air in the relatively hot dry channel. Thus, the air passing through the dry channel can be cooled to the maximum dew point temperature without increasing humidity.
  • An evaporated water supply pipe is required to continuously supply the evaporated water to the wet channel.
  • the cooling performance of the regenerative evaporative air conditioner decreases as the flow rate of evaporated water increases, it is important to supply a small amount of evaporated water uniformly.
  • the apparatus for continuously and constantly supplying the evaporated water becomes complicated and the cooling efficiency may also decrease.
  • the present invention has been made in view of the above, it is an object of the present invention to be able to continuously and constantly supply the evaporated water supplied to the wet channel in the regenerative evaporative air conditioner.
  • Another object of the present invention is to provide a regenerative evaporative air conditioner, a system, and a core module thereof, which can be easily manufactured by reducing the supply structure of evaporated water and can reduce production costs.
  • the regenerative evaporative air conditioner a plurality of gun channel portion through which the indoor air; A plurality of wet channel portions formed to be able to extract a part of the air passing through the gun channel portion and heat-exchanged with the gun channel portion; An evaporated water supply unit disposed above the wet channel unit and supplying evaporated water to wet the wet channel unit; And a gun channel shield formed at an upper portion of the gun channel part, allowing the evaporated water supplied from the evaporated water supply part to flow into the wet channel part, and shielding an upper part of the gun channel part.
  • the gun channel shield may be disposed at a position spaced a predetermined distance from an upper end of the gun channel portion.
  • the gun channel shield may be disposed in each of the gun channel portions, and the gaps generated by the distance between the gun channel shield and the upper end of the gun channel portion may be configured to communicate with each other.
  • the gun channel shield may be disposed for each of the gun channel portions, and each of the gun channel shields may be formed in a duct shape.
  • the wet channel part and the dry channel part may be alternately arranged to be alternately disposed.
  • the wet channel portion and the dry channel portion may each include a fin having a cross section of a waveform.
  • a heat transfer plate may be disposed between the wet channel portion and the dry channel portion.
  • the wet channel guide duct may be further attached to the lower side of the wet channel part and guide the bleed air passing through the wet channel part.
  • the evaporated water supply unit may be formed in the form of a sprinkler for ejecting evaporated water in a plurality of directions.
  • a bleed blower for discharging bleed air to the outside may be further provided.
  • the dry channel part may be formed to allow the indoor air to move upward, and the wet channel part may be formed to allow the additional air to move downward.
  • the air conditioner includes a gun channel portion through which the sucked indoor air passes; A wet channel portion formed to be able to extract a part of the air passing through the dry channel portion and configured to be wetted by evaporated water; And a supply blower disposed at an outlet side of the gun channel portion and configured to blow air passing through the gun channel portion to the indoor and wet channel portions.
  • Regenerative evaporative air conditioner may be understood as follows. That is, the air conditioner is formed by stacking unit modules consisting of a pair of dry channel portions and a wet channel portion. A wet channel pin attached to the unit module wet channel portion, a heat channel plate disposed between the wet channel portion and the dry channel portion, and a dry channel pin attached to the outer surface of the heat transfer plate, and a wet channel portion attached to the outlet side of the wet channel portion.
  • Wet channel guide duct for guiding the additional air passing through; And a gun channel guide duct attached to an outlet side of the gun channel part to guide indoor air passing through the gun channel part.
  • the cooling system of the regenerative evaporative air conditioner includes a system for maintaining the outlet side of the gun channel portion at a lower pressure than the inlet side, introducing indoor air into the gun channel portion, and supplying air passing through the gun channel portion to the room; A system for additionally extracting a part of the indoor air passing through the dry channel portion to the wet channel portion moistened with the evaporated water; A system for cooling the dry channel part through evaporation of the evaporated water; And a system for supplying evaporated water to the wet channel portion to continuously wet the wet channel portion.
  • the air channel unit and the wet channel unit may be configured to allow heat passing through the air channel unit and air passing through the wet channel unit to exchange heat in a counterflow manner.
  • the gun channel guide duct is installed separately from the wet channel part on the upper part of the gun channel part, so that the inflow of the evaporated water sprayed by the evaporated water supply part can be effectively blocked.
  • the supply blower since the supply blower is disposed at the outlet side of the gun channel part, the indoor air can be uniformly supplied to the gun channel part.
  • the supply blower since the supply blower also sends the bleeding air to the wet channel portion, it is possible to reduce the configuration for bleeding indoor air to the wet channel portion.
  • FIG. 1 is a side view showing a schematic configuration of a regenerative evaporative air conditioner according to an embodiment related to the present invention
  • FIG. 2 is a schematic side view of the core module and the evaporated water supply unit that may be mounted in FIG. 1.
  • FIG. 2 is a schematic side view of the core module and the evaporated water supply unit that may be mounted in FIG. 1.
  • Figure 3 is a side view showing a schematic configuration of a regenerative evaporative air conditioner according to another embodiment related to the present invention
  • FIG. 4 is a perspective view of a core module that may be mounted to the air conditioner of FIG.
  • FIG. 5 is a perspective view of a unit module constituting the core module of FIG.
  • FIG. 6 is a schematic perspective view showing the configuration of the core module and the evaporated water supply unit associated with FIG.
  • FIG. 7 is a plan view showing a top view of the core module associated with FIG.
  • FIG. 1 is a side view showing a schematic configuration of a regenerative evaporative air conditioner according to an embodiment related to the present invention.
  • the regenerative evaporative air conditioner 1 supplies a core module 20 for cooling air in a space to be cooled (hereinafter, referred to as “indoor air”), and supplies indoor air to the air conditioner 1.
  • Blower 40 an evaporated water supply unit 70 for supplying the evaporated water to the core module 20 to use the latent heat of evaporation, and a blower blower 50 for extracting the air heat exchanged with the indoor air to the outside (exhaust) Doing.
  • the regenerative evaporative air conditioner (1) includes a case (10) so that the external appearance can be configured, and the suction system of the indoor air, the discharge system of the bleed air, and the supply system of the evaporated water are provided inside the case (10). It may be configured to be included.
  • One side of the case 10 is formed with an inlet 11 of indoor air, an outlet 12 of cooled indoor air, and an outlet 13 of bleed air. It may be provided at a specific position of the control panel case 10 for the operation of the air conditioner (1).
  • a tank 61 for storing evaporated water may be installed at one side of the case 10 in order to continuously supply evaporated water, and a pump 62 may be included to send evaporated water to the evaporated water supply unit 70. . Since the water stored in the tank 61 is continuously evaporated through the evaporated water supply unit 70, the stored state of the evaporated water can be notified to the user through an indicator means on an operation panel external to the case 10 of the air conditioner 1. Or an automatic water supply system for water replenishment.
  • the core module 20 is configured to cool the indoor air by latent heat of evaporation of the evaporated water supplied by the evaporated water supply unit 70.
  • a detailed configuration for supplying the evaporated water to the core module 20 and the core module 20 will be described in detail with reference to FIG. 2.
  • FIG. 2 is a schematic side view of the core module and the evaporated water supply unit that may be mounted in FIG. 1.
  • FIG. 2 is a schematic side view of the core module and the evaporated water supply unit that may be mounted in FIG. 1.
  • the core module 20 has a form in which a plurality of wet channel portions W and a plurality of dry channel portions D are alternately arranged.
  • the lower end of the wet channel portion W is in the form of a duct, and the evaporated water after the heat exchange flows in a direction perpendicular to the ground to flow to one place.
  • the upper channel channel (D) is provided with a gun channel shield 32 to allow the evaporated water supplied from the evaporated water supply unit 70 flows into the wet channel unit (W) and shields the upper portion of the dry channel unit (D).
  • the gun channel shield 32 is disposed at a position spaced apart from the gun channel part D by a predetermined distance g, and is heat-exchanged through the space between the gun channel shield 32 and the gun channel part D. The air comes out.
  • the gun channel shield 32 may be fixed by a header plate (see No. 122 in FIG. 4) for fixing the gun channel part D and the wet channel part W.
  • Such a dry channel shield 32 may be disposed for each dry channel portion (D) to prevent evaporated water from flowing into the dry channel portion (D) and to be distributed to the wet channel portion (W).
  • the gun channel shield 32 may be formed in a wedge shape or a round roof shape, and the ends of each gun channel shield 32 may be formed to extend in a vertical direction at a predetermined distance.
  • a groove structure of a predetermined interval may be formed in a pattern pattern in which a groove structure at regular intervals is repeated.
  • the structure of the air conditioner 1 including the gun channel shield 32 has advantages in that the manufacturing is simple and the manufacturing cost is reduced.
  • An evaporated water supply unit 70 is installed at an upper portion of the core module 20 to supply evaporated water to the wet channel unit W.
  • the evaporated water supply unit 70 is formed so as to spray evaporated water in a plurality of directions.
  • the evaporated water supply unit 70 may include a plurality of nozzles that may be rotated at a fixed position. The number of evaporated water supplies 70 or the amount of evaporated water ejected through the nozzle of each evaporated water supply 70 may be changed according to the capacity of the core module 20.
  • the evaporated water supply unit 70 may be formed in a linear movement type, it may be configured to reciprocate.
  • the evaporated water supply unit 70 may be configured to be reciprocated in a pendulum shape about a predetermined axis.
  • Figure 3 is a side view showing a schematic configuration of a regenerative evaporative air conditioner according to another embodiment related to the present invention.
  • the regenerative evaporative air conditioner (100) provides evaporated water to a core module (120) for cooling indoor air to be cooled, a blower (140) for supplying cooled air, and a core module (120).
  • Evaporative water supply unit 170 for supplying and the additional blower 150 for extracting the air heat exchanged with the indoor air to the outside.
  • the blower 140 is different from the blower 40 of FIG. 1, which is a method of pumping indoor air to be cooled by being disposed below the core module 20 to the inside of the core module 20. There is a difference in that it is disposed above the core module 120.
  • Other components corresponding to those of FIG. 1 have been given similar numbers, and detailed descriptions thereof will be omitted.
  • FIG. 4 is a perspective view of a core module that may be mounted to the air conditioner of FIG. 3
  • FIG. 5 is a perspective view of a unit module forming a core module.
  • the core module 120 is fixed by both header plates 121 and 122 after the unit module 120 ′ composed of a pair of the dry channel unit D and the wet channel unit W is stacked.
  • the unit module 120 ′ includes a wet channel pin 124 attached inside the wet channel unit W, a heat transfer plate 126 and a heat transfer plate disposed between the wet channel unit W and the dry channel unit D.
  • the wet channel fins 124, the dry channel fins 125, and the heat transfer plate 126 are easily formed by evaporation of the evaporated water in which the indoor air passing through the dry channel portions D is wetted by the wet channel portions W.
  • FIG. It is formed by processing a plate having excellent heat transfer efficiency to be cooled.
  • these wet channel fins 124 and the dry channel fins 125 and the heat transfer plate 126 may be aluminum or copper.
  • the wet channel pins 124 and the dry channel pins 125 are bonded to the heat transfer plate 126 by brazing or the like.
  • the wet channel pins 124 and the dry channel pins 125 have a cross-sectional shape of waveforms to allow the indoor air or flow to proceed in a certain direction while increasing the surface area.
  • the thin plate-shaped pin may be bent in a zigzag form.
  • the wet channel pin 124 and the dry channel pin 125 may form a louver structure.
  • the surface of the wet channel fins 124 is processed or treated to be wetted by evaporated water.
  • a method of coating or attaching the porous channel to increase wettability on the surface of the wet channel pin 124 may be used.
  • a method of forming fine holes, slots or grooves or embossing in the wet channel pins 124 may be used so that the evaporated water may be evenly spread over the entire wet channel pins 124. .
  • the wet channel pins 124 and the dry channel pins 125 manufactured as described above are attached to both sides of the heat transfer plate 126, respectively.
  • the wet channel portion W is formed by the wet channel fins 124 and the heat transfer plate 126
  • the dry channel portion D is formed by the dry channel portion D and the heat transfer plate 126.
  • the wet channel portion W and the dry channel portion D are alternately arranged to overlap each other.
  • the bleed air and the evaporated water of the wet channel portion (W) and the indoor air of the dry channel portion (D) flow in a counterflow manner and are capable of heat exchange.
  • the wet channel guide duct 131 is disposed at the lower end of the wet channel part W to guide only the additional air so that the additional air is not mixed with the indoor air.
  • the wet channel guide duct 131 may be formed in a streamlined or wedge-shaped direction in which the indoor air flows into the dry channel portion D so as to reduce the flow resistance as much as possible when the indoor air flows into the dry channel portion D.
  • the bottom surface of the wet channel guide duct 131 may have a gradient to allow the evaporated water to flow toward the tank 161. It may be formed in the form having.
  • the additional air passing through the outlet of the wet channel portion W is collected and discharged to one side by the wet channel guide duct 131.
  • the gun channel guide duct 132 separates the dry channel portion D from the wet channel portion W so as to block the inflow of the evaporated water sprayed toward the wet channel portion W at the upper end of the dry channel portion D. Can be formed.
  • the dry channel guide duct 132 has an effect of drastically reducing the structure and the required number of the evaporated water supply unit 170.
  • the indoor air flowing along the gun channel guide duct 132 is supplied back to the room by the supply blower 140 or a part of the air is additionally directed to the wet channel part W.
  • the dry channel guide duct 132 and the wet channel guide duct 131 may be formed for each unit module 120 'constituting the core module 120, and may be easily fitted to the unit module 120'. Edges of the 120 and duct duct 132 and the wet channel guide duct 131 may be formed in a male or female form.
  • the dry channel guide duct 132 may have a wedge or streamlined structure so that the evaporated water sprayed from the evaporated water supply unit 170 spreads through the wet channel unit W, and the outer surface has a valley or groove structure to help the water flow. It may include. Further, the outer surface of the dry channel guide duct 32 may be treated or attached to improve the wettability of the evaporated water.
  • FIG. 6 is a schematic perspective view showing the configuration of the core module and the evaporated water supply unit according to the present invention.
  • the indoor air sucked into the core module 120 flows upward through the gun channel part D.
  • the evaporated water supply unit 170 is disposed above the wet channel portion W, and wets the wet channel portion W by spraying the evaporated water on the wet channel portion W.
  • the dry channel guide duct 132 prevents the evaporated water sprayed by the evaporated water supply unit 170 from flowing into the dry channel portion D and separates the dry channel portion D from the wet channel portion W.
  • a wet channel guide duct 131 for guiding the bleed air and the evaporated water passing through the wet channel part W is installed below the wet channel part W. The additional air is discharged to the outside along the wet channel guide duct 131.
  • the evaporated water supply unit 170 is installed on the core module 120 to supply the evaporated water to the wet channel unit W.
  • the evaporated water supply unit 170 is formed in a sprinkler form so as to spray evaporated water in a plurality of directions.
  • the evaporated water supply unit 170 may include a plurality of nozzles that can be rotated at a fixed position.
  • the number of evaporated water supplies 170 or the amount of evaporated water ejected through the nozzle of each evaporated water supply 70 may be changed according to the capacity of the core module 120.
  • the evaporated water supply unit 170 may be formed to be linearly movable, unlike in FIG. 7, and may be configured to be reciprocated.
  • the evaporated water supply unit 170 may be configured to be reciprocated in a pendulum shape about a predetermined axis.
  • the cooling system of the regenerative evaporative air conditioner having such a configuration can be described as follows.
  • the cooling system maintains the outlet side of the gun channel portion (D) at a lower pressure than the inlet side, thereby introducing indoor air into the gun channel portion (D) and supplying the air passing through the gun channel portion (D) to the room.
  • the blower 140 may be used in the gun channel part D so that the outlet side of the gun channel part D may be set lower than the inlet side in the atmospheric pressure state.
  • the arrangement of the blower 140 enables not only the inflow of the entire area more than the case of arranging the blower at the inlet side of the gun channel part D, but also the configuration and power for the extraction can be reduced.
  • the supply blower 140 also extracts a part of the cooled indoor air through the key channel portion (D).
  • the additional air mixed with the outside air flows along the wet channel part (W) to help evaporate the evaporated water.
  • the heat channel plate 126 and the dry channel pins 125 installed in the dry channel portion D are also cooled.
  • the indoor air passing through the gun channel part D is cooled.
  • the direction of the indoor air passing through the wet channel part and the bleed air passing through the dry channel part may be configured as a counter flow.
  • the evaporated water is supplied by the evaporated water supply unit 170 to wet the entire surface along the wet channel pin 124 having high wettability.
  • the evaporated water flows downward by gravity and then flows from the lower portion of the wet channel portion W to the tank 161.
  • regenerative evaporative air conditioner, cooling system, and core module thereof are not limited to the configuration and method of the above-described embodiments, but the embodiments may be modified in various ways so that various modifications may be made. Or some may be selectively combined.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Humidification (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

La présente invention concerne un refroidisseur évaporatif régénératif qui comprend: une pluralité de canaux secs dans lesquels circule l'air intérieur; une pluralité de canaux humides construits de manière à extraire une partie de l'air qui a circulé dans les canaux secs et à connaître un échange de chaleur avec les canaux secs; une alimentation en eau d'évaporation disposée au-dessus des canaux humides, conçue pour apporter de l'eau d'évaporation afin d'humidifier les canaux humides; et une protection pour les canaux secs disposée au-dessus des canaux secs, conçue pour guider l'eau d'évaporation provenant de l'alimentation en eau d'évaporation de sorte qu'elle entre dans les canaux humides et pour protéger les parties supérieures des canaux secs. La protection pour les canaux secs présente l'avantage de pouvoir efficacement empêcher l'eau d'évaporation projetée par l'alimentation en eau d'évaporation d'entrer dans les canaux humides et de simplifier la construction de l'alimentation en eau d'évaporation.
PCT/KR2009/006827 2008-11-20 2009-11-19 Refroidisseur évaporatif régénératif, système de refroidissement et module central de ce dernier WO2010058978A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/130,321 US20110232315A1 (en) 2008-11-20 2009-11-19 Regenerative evaporative cooler, cooling system and core module thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0115920 2008-11-20
KR1020080115920A KR101054445B1 (ko) 2008-11-20 2008-11-20 재생증발식 냉방기, 냉방 시스템 및 그의 코어 모듈

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WO2010058978A2 true WO2010058978A2 (fr) 2010-05-27
WO2010058978A3 WO2010058978A3 (fr) 2010-10-21

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WO2014175680A1 (fr) * 2013-04-26 2014-10-30 주식회사 경동나비엔 Asperseur d'un refroidisseur à évaporation
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