WO2021228101A1 - Échangeur de chaleur à évaporation-condensation en cascade - Google Patents

Échangeur de chaleur à évaporation-condensation en cascade Download PDF

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Publication number
WO2021228101A1
WO2021228101A1 PCT/CN2021/093106 CN2021093106W WO2021228101A1 WO 2021228101 A1 WO2021228101 A1 WO 2021228101A1 CN 2021093106 W CN2021093106 W CN 2021093106W WO 2021228101 A1 WO2021228101 A1 WO 2021228101A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
cooling
tube
water
pipe
Prior art date
Application number
PCT/CN2021/093106
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English (en)
Chinese (zh)
Inventor
李国斌
李一杰
Original Assignee
瀚润联合高科技发展（北京）有限公司
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Application filed by 瀚润联合高科技发展（北京）有限公司 filed Critical 瀚润联合高科技发展（北京）有限公司
Publication of WO2021228101A1 publication Critical patent/WO2021228101A1/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
    • 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
    • F28D7/10—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 the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—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 the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers

Definitions

  • Evaporative condensation heat exchanger The existing evaporative cooling heat exchanger has no water distribution device, which needs to be used in conjunction with a spray device. This causes the air conditioning unit to increase in size, and the increase in manufacturing cost is not conducive to the miniaturization of the unit; the cooling water sprayed downwards during the cooling process and the air under the negative pressure in the unit cavity produce a counter flow, causing a large amount of "flying water” and "floating water”. Phenomenon, which not only causes waste of water resources but also reduces cooling efficiency.
  • a cascade evaporative condensation heat exchanger including at least one heat exchange plate, the heat exchange plate includes at least one heat exchange unit;
  • the heat exchange unit is A plurality of horizontal sections of the condenser tube are vertically arranged into a plate-like structure, the two ends of the plurality of horizontal sections of the condenser tube are connected by the bending section of the condenser to form at least one refrigerant heat exchange channel, and the two sides of the plate-like structure form the evaporative heat exchange surface;
  • a cooling outer tube is also provided above the uppermost horizontal section of the condenser tube;
  • a water distribution groove is also provided between the cooling outer tube and the uppermost horizontal section of the condenser tube; water distribution micropores are provided on both sides of the water distribution groove Plate;
  • the upper end of the water distribution microporous plate is connected with the pipe wall of the outer cooling pipe, and the lower end is connected with the pipe wall of the uppermost condensing pipe horizontal section, so that
  • connection mode of the outer cooling tube, the water distribution groove, and the water distribution microporous plate between two adjacent heat exchange units is replaced with: a water distribution groove is arranged above the cooling outer pipe, and the water distribution groove is arranged on both sides of the water distribution groove.
  • this embodiment provides a cascaded evaporative condensation heat exchanger, which includes at least one heat exchange unit; the heat exchange unit is composed of a plurality of horizontal sections 5 of condenser tubes arranged vertically. The two ends of the multiple condenser tube horizontal sections 5 are connected by the condenser tube bending section 14 to form at least one refrigerant heat exchange channel.
  • the tube wall of the condenser tube horizontal section 5 on the uppermost side of the heat unit is connected, and the upper end is connected with the tube wall of the condenser tube horizontal section 5 on the lowermost side of the heat exchange unit on the upper side; middle.
  • the bottom of the cooling outer tube 3 is connected to the top of the uppermost condenser tube horizontal section 5 of the heat exchange unit to which it belongs, and a distance is left from the lowermost condenser tube horizontal section 5 of the upper heat exchange unit; more
  • the brackets 6 are arranged at intervals between the top of the outer cooling tube 3 and the bottom of the lowermost condenser horizontal section 5 of the upper heat exchange unit.
  • the number of condenser tube horizontal sections 5 in the heat exchange unit on the lower side is smaller than that of the heat exchange unit on the upper side.
  • the number of the horizontal section 5 of the condenser tube in the middle is used to reduce the heat exchange area of the evaporative heat exchange surface of the multiple heat exchange units from top to bottom; the water outlet 4 of the cooling outer tube 3 in the heat exchange unit on the lower side
  • the number is smaller than the number of water outlet holes 4 of the outer cooling tube 3 on the upper side (the distance between the outlet holes along the length of the outer cooling tube is increased), and is used to meet the water distribution requirements of the evaporative heat exchange surface corresponding to the heat exchange area.
  • a cascade evaporative condensation heat exchanger of this embodiment includes a plurality of heat exchange plates; the plurality of heat exchange plates are arranged at intervals along a direction perpendicular to the evaporation heat exchange surface. Multiple heat exchange plates share a cooling header.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

La présente invention concerne un échangeur de chaleur à évaporation-condensation en cascade, comprenant au moins une unité d'échange de chaleur. Chaque unité d'échange de chaleur présente une structure en forme de plaque formée par l'agencement d'une pluralité de sections horizontales de tuyau de condensation, et au moins un conduit de réfrigérant d'échange de chaleur est formé ; un tuyau externe de refroidissement est disposé au-dessus de la section horizontale de tuyau de condensation sur le côté le plus élevé ; un espace de distribution d'eau est disposé entre le tuyau externe de refroidissement et la section horizontale de tuyau de condensation ; des microplaques de distribution d'eau sont disposées sur les deux côtés de l'espace de distribution d'eau ; le tuyau externe de refroidissement est muni d'une pluralité de trous de sortie d'eau communiquant avec l'espace de distribution d'eau ; un tuyau interne de refroidissement est en outre disposé dans chaque conduit de réfrigérant d'échange de chaleur. Dans la présente invention, deux modes d'échange de chaleur, à savoir l'échange de chaleur par refroidissement d'eau et l'échange de chaleur par refroidissement par évaporation, sont intégrés, et un effet d'échange de chaleur en cascade est obtenu ; l'espace de distribution d'eau dissimulé intégré peut améliorer l'efficacité de l'évaporation ; les phénomènes de projection d'eau et flottaison d'eau sont évités.
PCT/CN2021/093106 2020-05-13 2021-05-11 Échangeur de chaleur à évaporation-condensation en cascade WO2021228101A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010401522.8A CN111473665A (zh) 2020-05-13 2020-05-13 一种复叠式蒸发冷凝换热器
CN202010401522.8 2020-05-13

Publications (1)

Publication Number Publication Date
WO2021228101A1 true WO2021228101A1 (fr) 2021-11-18

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Application Number Title Priority Date Filing Date
PCT/CN2021/093106 WO2021228101A1 (fr) 2020-05-13 2021-05-11 Échangeur de chaleur à évaporation-condensation en cascade

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CN (1) CN111473665A (fr)
WO (1) WO2021228101A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111473665A (zh) * 2020-05-13 2020-07-31 瀚润联合高科技发展（北京）有限公司 一种复叠式蒸发冷凝换热器
CN112815744B (zh) * 2021-01-13 2022-01-11 瀚润联合高科技发展（北京）有限公司 三维冷却蒸发冷凝换热器
CN114669074B (zh) * 2022-03-25 2023-10-24 高拓微通传热技术(北京)有限公司 一种多效蒸馏水机用多功能微流道冷凝器

Citations (9)

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CN200972344Y (zh) * 2006-11-04 2007-11-07 唐大勇 一种蒸发式冷凝、换热排管系统
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CN206056033U (zh) * 2016-08-24 2017-03-29 颜汉强 一种高效的蒸发式冷凝器
CN206056032U (zh) * 2016-08-24 2017-03-29 颜汉强 一种蒸发式冷凝器上的新型播水装置
CN106766390A (zh) * 2016-12-28 2017-05-31 广东欧科空调制冷有限公司 一种换热器及空调
CN206320960U (zh) * 2016-08-18 2017-07-11 颜汉强 一种具有组合式翼片结构的蒸发式冷凝器
CN111473665A (zh) * 2020-05-13 2020-07-31 瀚润联合高科技发展（北京）有限公司 一种复叠式蒸发冷凝换热器
CN212409457U (zh) * 2020-05-13 2021-01-26 瀚润联合高科技发展（北京）有限公司 一种复叠式蒸发冷凝换热器

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CN2544233Y (zh) * 2002-04-17 2003-04-09 陈卫华 高效换热套管蒸发式冷凝器
CN105157281A (zh) * 2015-09-29 2015-12-16 江苏高科应用科学研究所有限公司 具有翅片的套管蒸发式冷凝器
CN107062708B (zh) * 2017-03-17 2020-01-03 浙江理工大学 一种椭圆管蒸发冷却机组装置

Patent Citations (9)

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Publication number Priority date Publication date Assignee Title
KR20040063501A (ko) * 2003-01-08 2004-07-14 삼성전자주식회사 응축기 및 공기조화기
CN200972344Y (zh) * 2006-11-04 2007-11-07 唐大勇 一种蒸发式冷凝、换热排管系统
CN204757800U (zh) * 2015-06-05 2015-11-11 颜汉强 一种蒸发式冷凝器上的布水散热装置
CN206320960U (zh) * 2016-08-18 2017-07-11 颜汉强 一种具有组合式翼片结构的蒸发式冷凝器
CN206056033U (zh) * 2016-08-24 2017-03-29 颜汉强 一种高效的蒸发式冷凝器
CN206056032U (zh) * 2016-08-24 2017-03-29 颜汉强 一种蒸发式冷凝器上的新型播水装置
CN106766390A (zh) * 2016-12-28 2017-05-31 广东欧科空调制冷有限公司 一种换热器及空调
CN111473665A (zh) * 2020-05-13 2020-07-31 瀚润联合高科技发展（北京）有限公司 一种复叠式蒸发冷凝换热器
CN212409457U (zh) * 2020-05-13 2021-01-26 瀚润联合高科技发展（北京）有限公司 一种复叠式蒸发冷凝换热器

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