WO2005080897A1 - Echangeur de chaleur a eau froide a temperature elevee - Google Patents

Echangeur de chaleur a eau froide a temperature elevee Download PDF

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Publication number
WO2005080897A1
WO2005080897A1 PCT/CN2005/000173 CN2005000173W WO2005080897A1 WO 2005080897 A1 WO2005080897 A1 WO 2005080897A1 CN 2005000173 W CN2005000173 W CN 2005000173W WO 2005080897 A1 WO2005080897 A1 WO 2005080897A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
chilled water
fin group
cold water
heat exchange
Prior art date
Application number
PCT/CN2005/000173
Other languages
English (en)
Chinese (zh)
Inventor
Zhigang Huang
Original Assignee
Zhigang Huang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhigang Huang filed Critical Zhigang Huang
Publication of WO2005080897A1 publication Critical patent/WO2005080897A1/fr

Links

Classifications

    • 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
    • F28D1/00—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements

Definitions

  • the utility model relates to refrigeration equipment, in particular to a heat exchange device of a refrigeration system. Background technique
  • the purpose of the utility model is to solve the technical problems of low heat exchange efficiency and high energy consumption of the heat exchange device of the existing central refrigeration system, and propose a high-efficiency energy-saving countercurrent high water temperature heat exchanger.
  • the technical solution proposed by the utility model adopts a countercurrent high water temperature heat exchanger, which includes a plurality of spaced heat exchange fin groups, heat exchange pipe bundles passing through the fin groups, A chilled water inlet and a chilled water outlet respectively provided at both ends of the fin group group and communicating with both ends of the heat exchange pipe bundle, and further include a fan disposed far from the chilled water inlet and close to the chilled water outlet. .
  • the frozen water inlet may be provided on the upper part of the fin group, and the frozen water outlet may also be provided on the upper part of the fin group.
  • the frozen water inlet may be provided at an upper portion of the fin group, and the frozen water outlet may be provided at a lower portion of the fin group.
  • the frozen water inlet may be provided at a lower portion of the fin group, and the frozen water outlet may be provided at an upper portion of the fin group.
  • the utility model adopts a structural form in which the air supply direction and the chilled water flow countercurrent heat exchange, which greatly improves the heat exchange efficiency, and keeps the temperature of the chilled water outlet of the refrigerator under the condition that the indoor temperature is not changed (the relative humidity is increased). Increased 5 V-6 V, correspondingly increased the efficiency of the refrigerator by 15% -20%. If this heat exchanger is widely used, the country can save electricity in the tens of billions of kwh every year.
  • the countercurrent high water temperature heat exchanger proposed by the utility model also opens up broad prospects for the wide application of high-temperature cold storage and the use of natural cold sources such as well water, lake water, sea water, etc., thereby achieving very great economic and social benefits. . BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic structural diagram of an existing heat exchanger
  • FIG. 2 is a schematic structural diagram of a preferred embodiment of the present invention. detailed description
  • FIG. 1 shows a basic structure of a current fan coil, in which a fan 5 is provided at one end of the heat exchange fin group 1 and is close to the inlet 3 and the outlet 4 of the chilled water at the same time.
  • the upper part flows out, and the air supply direction is perpendicular to the inflow and outflow directions of the chilled water, that is, cross flow heat exchange.
  • the reasonable value of the air outlet temperature of this structure must be higher than the temperature of the chilled water outlet, which makes the product's heat exchange efficiency lower, which results in higher energy consumption and it is difficult to make breakthroughs.
  • FIG. 2 shows the structure of a preferred embodiment of the present utility model.
  • the countercurrent high water temperature fan coil includes a plurality of heat exchange fin groups 1 spaced apart from each other, and is sleeved on the fins.
  • the heat exchange pipe bundles 2 in group 1 are respectively provided with a chilled water inlet 3 and a chilled water outlet 4 at two ends of the fin group 1 and communicate with the two ends of the heat exchange pipe bundle 2.
  • a water inlet 3 is provided on the upper portion of the fin group 1, and a frozen water outlet 4 is also provided on the upper portion of the fin group 1.
  • the flow direction of the chilled water is right in and left out.
  • the direction of the fan's air supply is opposite to the flow of the chilled water, that is, countercurrent heat transfer.
  • Theoretical calculations and practical tests show that the logarithmic average temperature difference of countercurrent high water temperature fan coils is greater than the logarithmic average temperature difference of traditional fan coils.
  • the above effects become more pronounced. For example, when the ambient temperature is 24 ° C, if the temperature of the chilled water is increased to a certain temperature (12 ° C inlet water, 17 ° C outlet water), the temperature difference of the countercurrent high water temperature fan coil is higher than that of the traditional fan coil under the same conditions.
  • the temperature difference is increased by more than 20%, and the outlet temperature of the countercurrent high water temperature fan coil can be lower than the chilled water temperature.
  • the heat exchange efficiency is greatly improved.
  • the energy saving effect is particularly obvious.
  • the positions of the frozen water inlet and the frozen water outlet can be changed to obtain other embodiments of the present invention.
  • the frozen water inlet 3 is provided at the upper part of the fin group 1, and the frozen water outlet 4 is provided at the lower part of the fin group 1.
  • the frozen water inlet 3 is provided at A lower part of the fin group 1 is provided with a chilled water outlet 4 at an upper part of the fin group 1.

Landscapes

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

Abstract

L'invention concerne un échangeur de chaleur à contre-courant utilisant de l'eau froide à température élevée comprenant un groupe d'ailettes (1) d'échange de chaleur composé de plusieurs feuilles d'ailette écartées les unes des autres, un groupe de tubes (2) d'échange de chaleur traversant le groupe d'ailettes (1), une entrée d'eau froide (3), une sortie d'eau froide (4) située respectivement sur la partie supérieure des deux extrémités du groupe d'ailettes et connectées aux deux extrémités du groupe de tubes d'échange de chaleur, un ventilateur (5) disposé éloigné de l'entrée d'eau froide (3) et proche de la sortie d'eau froide (4). L'échangeur de chaleur de l'invention comprend une structure d'échange de chaleur dans laquelle le sens de l'air fourni et le sens d'écoulement de l'eau froide sont contraires, ce qui améliore de manière significative l'efficacité dudit échangeur de chaleur.
PCT/CN2005/000173 2004-02-22 2005-02-06 Echangeur de chaleur a eau froide a temperature elevee WO2005080897A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200420042851.4 2004-02-22
CNU2004200428514U CN2684108Y (zh) 2004-02-22 2004-02-22 高水温换热器

Publications (1)

Publication Number Publication Date
WO2005080897A1 true WO2005080897A1 (fr) 2005-09-01

Family

ID=34607929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/000173 WO2005080897A1 (fr) 2004-02-22 2005-02-06 Echangeur de chaleur a eau froide a temperature elevee

Country Status (2)

Country Link
CN (1) CN2684108Y (fr)
WO (1) WO2005080897A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007080483A2 (fr) * 2006-01-08 2007-07-19 Obrist Engineering Gmbh Echangeur de chaleur et groupe d'echangeurs de chaleur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901202A (zh) * 2011-07-26 2013-01-30 珠海格力电器股份有限公司 空调器及其干式表冷器
CN102635983A (zh) * 2012-05-07 2012-08-15 无锡市锦立换热设备有限公司 多进多出式蒸发器
CN114000908B (zh) * 2021-11-08 2024-05-07 中国矿业大学 一种地下巷道或隧道用模块化空冷器及使用方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649761A (en) * 1970-01-23 1972-03-14 Bell Telephone Labor Inc Dial selective wideband intercommunication system
JPS61259084A (ja) * 1985-05-10 1986-11-17 Matsushita Refrig Co 熱交換装置
JPH06147703A (ja) * 1992-11-02 1994-05-27 Matsushita Refrig Co Ltd 冷凍機用蒸発器
JPH09273801A (ja) * 1996-04-02 1997-10-21 Hitachi Air Conditioning & Refrig Co Ltd 空気調和機
CN2355244Y (zh) * 1998-11-02 1999-12-22 严志宇 智能型节能立式风机盘管
CN2360770Y (zh) * 1998-12-10 2000-01-26 李超 一种井水空调器
CN2385249Y (zh) * 1999-06-04 2000-06-28 张朝元 水循环式水动力风机换热器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649761A (en) * 1970-01-23 1972-03-14 Bell Telephone Labor Inc Dial selective wideband intercommunication system
JPS61259084A (ja) * 1985-05-10 1986-11-17 Matsushita Refrig Co 熱交換装置
JPH06147703A (ja) * 1992-11-02 1994-05-27 Matsushita Refrig Co Ltd 冷凍機用蒸発器
JPH09273801A (ja) * 1996-04-02 1997-10-21 Hitachi Air Conditioning & Refrig Co Ltd 空気調和機
CN2355244Y (zh) * 1998-11-02 1999-12-22 严志宇 智能型节能立式风机盘管
CN2360770Y (zh) * 1998-12-10 2000-01-26 李超 一种井水空调器
CN2385249Y (zh) * 1999-06-04 2000-06-28 张朝元 水循环式水动力风机换热器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007080483A2 (fr) * 2006-01-08 2007-07-19 Obrist Engineering Gmbh Echangeur de chaleur et groupe d'echangeurs de chaleur
WO2007080483A3 (fr) * 2006-01-08 2008-05-08 Obrist Engineering Gmbh Echangeur de chaleur et groupe d'echangeurs de chaleur

Also Published As

Publication number Publication date
CN2684108Y (zh) 2005-03-09

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