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WO2015070423A1 - Échangeur thermique modulaire - Google Patents

Échangeur thermique modulaire Download PDF

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Publication number
WO2015070423A1
WO2015070423A1 PCT/CN2013/087159 CN2013087159W WO2015070423A1 WO 2015070423 A1 WO2015070423 A1 WO 2015070423A1 CN 2013087159 W CN2013087159 W CN 2013087159W WO 2015070423 A1 WO2015070423 A1 WO 2015070423A1
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WO
WIPO (PCT)
Prior art keywords
fluid
heat exchange
heat
endothermic
modular
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/087159
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English (en)
Chinese (zh)
Inventor
王志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wisdom Energy Technology Co Ltd
Original Assignee
Wisdom Energy Technology Co Ltd
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 Wisdom Energy Technology Co Ltd filed Critical Wisdom Energy Technology Co Ltd
Priority to PCT/CN2013/087159 priority Critical patent/WO2015070423A1/fr
Publication of WO2015070423A1 publication Critical patent/WO2015070423A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • 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

Definitions

  • the invention relates to a heat exchanger, in particular to a heat exchanger for fluid heat exchange, which can be used in a combined heat and power triple supply system or other waste heat recovery system with a gas turbine as the main equipment.
  • Engine exhaust temperatures are high and contain high energy.
  • the exhaust gas is generally introduced into the heat exchanger, and the heat of the exhaust gas is exchanged through the heat exchanger to other fluids flowing through the heat exchanger, such as producing hot water or cooling with lithium bromide.
  • hot water demand and cooling demand will change, so it is desirable to provide a heat exchanger that can meet different endothermic needs.
  • the present invention proposes a modular heat exchanger that can be adjusted to meet different heat absorption requirements.
  • the modular heat exchanger includes a plurality of heat exchange units, each of which is provided with a switch for selectively turning on or off a corresponding heat exchange unit, so that each heat exchange unit can selectively participate in heat exchange Or do not participate in heat exchange.
  • the heat exchanger includes a first set of heat exchange units that exchange heat of the exothermic fluid to the first endothermic fluid and a first exchange heat of the exothermic fluid to the second endothermic fluid
  • Two sets of heat exchange units each set of heat exchange units includes a plurality of heat exchange units, and each of the heat exchange units of each set of heat exchange units is provided with a corresponding switch for selectively opening or closing corresponding
  • the heat exchange unit is such that each heat exchange unit in each group of heat exchange units can selectively participate in heat exchange or not participate in heat exchange.
  • the heat exchanger includes an exothermic fluid path, a first endothermic fluid input channel, a first endothermic fluid output channel, a second endothermic fluid input channel, and a second endothermic fluid output channel.
  • a heat exchange unit is disposed on the heat release fluid path, and each of the first heat exchange units is provided with a first heat absorption fluid heat exchange channel, and each first heat absorption fluid heat exchange channel Providing a first heat absorption fluid inlet portion in fluid communication with the first heat absorption fluid input channel and a first heat absorption fluid outlet portion in fluid communication with the first heat absorption fluid output channel, the second group of switches a second endothermic fluid heat exchange channel is disposed in each of the heat exchange units, and each of the second endothermic fluid heat exchange channels is provided with a second endotherm that is in fluid communication with the second endothermic fluid input channel a fluid inlet portion and a second heat absorbing fluid outlet portion in fluid communication with the second heat absorbing fluid output channel.
  • the first endothermic fluid heat exchange channels of the first group of heat exchange units are juxtaposed to each other, and the second of the second group of heat exchange units
  • the heat absorbing fluid heat exchange channels are arranged side by side.
  • the exothermic fluid is flue gas or engine exhaust.
  • the first endothermic fluid and the second endothermic fluid are selected from the group consisting of water, lithium bromide, organic working fluid, and heat transfer oil.
  • the first endothermic fluid is water and the second endothermic fluid is lithium bromide.
  • each heat exchange unit includes an endothermic fluid input cavity, an endothermic fluid output cavity, and a plurality of heat exchange tubes connected between the endothermic fluid input cavity and the endothermic fluid output cavity.
  • the heat absorbing fluid input cavity has a fluid inlet
  • the heat absorbing fluid output cavity has a fluid outlet
  • each heat exchange tube and the heat absorbing fluid input cavity and the heat absorbing fluid output cavity fluid respectively The same.
  • the plurality of heat exchange tubes comprise two sets of heat exchange tubes.
  • each of the heat exchange tubes is designed to be bent, and the two sets of heat exchange tubes are symmetrically disposed.
  • the modular heat exchanger includes a plurality of units, each of which can be individually turned on or off, so that the number of heat exchange units to be operated can be increased or decreased according to actual heat exchange requirements. In the case where it is necessary to exchange heat to a plurality of endothermic fluids at the same time, this adjustment capability can meet the different endothermic demands of various endothermic fluids.
  • FIG. 1 is a simplified schematic diagram of an embodiment of a modular heat exchanger.
  • FIG. 2 is a perspective view of one embodiment of a heat exchange unit.
  • FIG. 3 is a plan view of the heat exchange unit of Figure 2;
  • the present application proposes a modular heat exchanger comprising a plurality of heat exchange units, each heat exchange unit being provided with a switch for selectively opening or closing a corresponding heat exchange unit, so that each heat exchange unit can be selected Participate in heat exchange or not participate in heat exchange.
  • the modular heat exchanger 10 includes an exothermic fluid path 12 for the passage of an exothermic fluid.
  • the exothermic fluid is typically a high temperature fluid, such as flue gas or a starting exhaust.
  • the heat exchanger 10 exchanges heat of the exothermic fluid to the first endothermic fluid and the second endothermic fluid simultaneously.
  • the first endothermic fluid is water and the second endothermic fluid is lithium bromide.
  • the choice of such endothermic fluid can be applied to a combined heat and power triple supply system with a gas turbine as the main equipment.
  • the heat exchanger 10 includes a first endothermic fluid input channel 14, a first endothermic fluid output channel 16, a second endothermic fluid input channel 18, and a second endothermic fluid output channel 20.
  • the heat exchanger 10 includes a plurality of heat exchange units. These heat exchange units are disposed on the exothermic fluid path for exchanging heat of the exothermic fluid to the endothermic fluid flowing through the heat exchange unit.
  • This embodiment is exemplified by the heat exchanger 10 including eight heat exchange units, and the heat exchange units are divided into two groups, the first group includes four heat exchange units 22, and the second group includes four heat exchange units 24.
  • the first set of four heat exchange units 22 are used to exchange heat of the exothermic fluid to the first endothermic fluid (water in this embodiment), and the second set of four heat exchange units 24 are used to dissipate the exothermic fluid
  • the heat is exchanged to a second endothermic fluid (lithium bromide in this embodiment).
  • the total number of heat exchange units is not limited to eight, and the number of heat exchange units per group may be more than four or less than four. Moreover, it is also possible to provide more sets of heat exchange units.
  • Each of the first set of heat exchange units 22 is provided with a first endothermic fluid heat exchange passage 26.
  • Each of the first endothermic fluid heat exchange passages 26 has a first endothermic fluid inlet portion 28 and a first endothermic fluid outlet portion 30.
  • the first endothermic fluid inlet portion 28 is in fluid communication with the first endothermic fluid input channel 14, and the first endothermic fluid outlet portion 30 is in fluid communication with the first endothermic fluid output channel 16.
  • the first endothermic fluid eg, water
  • the output to the first endothermic fluid output channel 16 is via the first endothermic fluid outlet portion 30.
  • Each of the first endothermic fluid heat exchange passages 26 is provided with a switch 29 (for example, a valve 29) for selectively opening or closing the corresponding heat exchange unit so that each of the first set of heat exchange units exchanges heat The units are all selectively involved in heat exchange or not participating in heat exchange.
  • a switch 29 for example, a valve 29
  • These first endothermic fluid heat exchange passages 26 are juxtaposed to each other in the flow path of the first absorption fluid.
  • each of the second set of heat exchange units 24 is provided with a second endothermic fluid heat exchange passage 32.
  • Each of the second endothermic fluid heat exchange passages 32 has a second endothermic fluid inlet portion 34 and a second endothermic fluid outlet portion 36.
  • Each of the second endothermic fluid inlet portions 34 is in fluid communication with the second endothermic fluid input passage 18, and each of the second endothermic fluid outlet portions 36 is in fluid communication with the second endothermic fluid output passage 20.
  • the second endothermic fluid eg, lithium bromide
  • the second endothermic fluid enters the second endothermic fluid heat exchange channel 32 via the second endothermic fluid inlet portion 34, absorbing the heat of the exothermic fluid.
  • the second heat absorbing fluid outlet portion 36 is output to the second heat absorbing fluid output passage 20.
  • Each of the second endothermic fluid heat exchange passages 32 is provided with a switch 39 (for example, a valve 39) for selectively opening or closing the corresponding heat exchange unit so that each of the second set of heat exchange units exchanges heat The units are all selectively involved in heat exchange or not participating in heat exchange.
  • These second endothermic fluid heat exchange passages 32 are juxtaposed with each other in the flow path of the second absorption fluid.
  • each heat exchange unit can be individually turned on or off, it can be elastically adjusted when the heat absorption requirement of the heat absorbing fluid changes. For example, assuming that all of the heat exchange units 22, 24 are fully open, the first set of heat exchange units 22 absorbs 50% of the heat of the exothermic fluid, and the second set of heat exchange units 24 absorbs 50% of the heat (here is only assumed, actually It is impossible for the heat exchange unit to exchange all the heat of the exothermic fluid to the endothermic fluid. When refrigeration is not required, lithium bromide is not required to participate in the work, so the second set of heat exchange units 24 are all turned off. At this time, the first group of heat exchange units 22 exchanges 100% of the heat to the first heat absorbing fluid (for example, water).
  • the first heat absorbing fluid for example, water
  • the first set of heat exchange units 22 can be all turned off, and the second set of heat exchange units 24 can exchange 100% of the heat to a second endothermic fluid (eg, lithium bromide).
  • a portion of the second set of heat exchange units 24 may be turned off to maintain the temperature of the lithium bromide.
  • each heat exchange unit can be selectively turned off or on according to the actual demand of heat absorption.
  • the heat absorbing fluid or working medium therein can be emptied.
  • the heat exchange unit 24 containing the lithium bromide working medium is not involved in the operation, the lithium bromide working medium of the heat exchange unit 24 can be evacuated to avoid crystallization of the working medium.
  • the heat exchange unit 40 includes an endothermic fluid input cavity 42, an endothermic fluid output cavity 44, and a plurality of heat exchange tubes 46 connected between the endothermic fluid input cavity 42 and the endothermic fluid output cavity 44.
  • the endothermic fluid input cavity 42 has a fluid inlet 48 with a fluid outlet 50.
  • Each heat exchange tube 46 includes an input end and an output end, the input end of which is in fluid communication with the endothermic fluid input chamber 42 and the output end is in fluid communication with the endothermic fluid output chamber 44.
  • the endothermic fluid (first or second endothermic fluid) in the endothermic fluid input channel can flow into the endothermic fluid input cavity 42 through the fluid inlet 48 and then through the heat exchange tube. 46 flows into the endothermic fluid output cavity 44 and flows through the fluid outlet 50 to the endothermic fluid output channel.
  • the heat exchange tubes 46 of the heat exchange unit 40 include two sets of heat exchange tubes 46 disposed symmetrically, and each heat exchange tube 46 is designed to be bent to increase the heat exchange surface.
  • the first endothermic fluid is water and the second endothermic fluid is lithium bromide.
  • the endothermic fluid may also be other fluids such as organic working fluids, heat transfer oils, and the like.
  • Exothermic fluid refers to any heat source fluid that can exchange its heat energy to other fluids through a heat exchanger, including but not limited to, high temperature flue gas, engine exhaust, industrial exhaust gas, high temperature liquid, and the like.
  • the present invention provides a modular heat exchanger comprising a plurality of heat exchange units, each of which can be selectively opened or closed so that each heat exchange unit can selectively participate in heat exchange Or do not participate in heat exchange to meet different heat absorption needs.

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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

L'invention concerne un échangeur thermique modulaire, comprenant une pluralité d'unités d'échange thermique, un commutateur étant disposé sur chaque unité d'échange thermique, utilisé pour activer ou désactiver sélectivement l'unité d'échange thermique correspondante, de telle sorte que chaque unité d'échange thermique peut participer ou non de façon sélective à un échange thermique. Comme chaque unité d'échange thermique peut être individuellement activée ou désactivée, le nombre d'échangeurs thermiques en fonctionnement peut être augmenté ou diminué selon les exigences pratiques. Là où de la chaleur doit être échangée simultanément avec une pluralité de fluides absorbeurs de chaleur, cette capacité de réglage peut satisfaire les différentes exigences d'absorption thermique d'une pluralité de fluides absorbeurs de chaleur.
PCT/CN2013/087159 2013-11-14 2013-11-14 Échangeur thermique modulaire Ceased WO2015070423A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/087159 WO2015070423A1 (fr) 2013-11-14 2013-11-14 Échangeur thermique modulaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/087159 WO2015070423A1 (fr) 2013-11-14 2013-11-14 Échangeur thermique modulaire

Publications (1)

Publication Number Publication Date
WO2015070423A1 true WO2015070423A1 (fr) 2015-05-21

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PCT/CN2013/087159 Ceased WO2015070423A1 (fr) 2013-11-14 2013-11-14 Échangeur thermique modulaire

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WO (1) WO2015070423A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111442542A (zh) * 2020-05-09 2020-07-24 中国科学院工程热物理研究所 射流和对流换热相结合的吸热装置及应用
CN118391699A (zh) * 2024-06-06 2024-07-26 华北电力大学 高温烟气与高熔点熔盐的模块化换热装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040194933A1 (en) * 2002-12-26 2004-10-07 Toru Ikeda Heat exchanger
CN201589573U (zh) * 2010-03-11 2010-09-22 努奥罗（中国）有限公司 一种采暖散热器的散热管安装改进结构
CN201680745U (zh) * 2010-05-10 2010-12-22 赵春 水平组合相变换热器
CN201819585U (zh) * 2010-06-30 2011-05-04 鞍钢集团工程技术有限公司 一种回收炼钢闷渣废水余热的换热器
CN201935615U (zh) * 2011-01-19 2011-08-17 莱芜雅鲁生化有限公司 可调节板式换热器
CN202734616U (zh) * 2012-06-11 2013-02-13 苏州优能节能技术有限公司 一种模块化废气余热回收装置
CN203605754U (zh) * 2013-11-14 2014-05-21 深圳智慧能源技术有限公司 模块式换热器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040194933A1 (en) * 2002-12-26 2004-10-07 Toru Ikeda Heat exchanger
CN201589573U (zh) * 2010-03-11 2010-09-22 努奥罗（中国）有限公司 一种采暖散热器的散热管安装改进结构
CN201680745U (zh) * 2010-05-10 2010-12-22 赵春 水平组合相变换热器
CN201819585U (zh) * 2010-06-30 2011-05-04 鞍钢集团工程技术有限公司 一种回收炼钢闷渣废水余热的换热器
CN201935615U (zh) * 2011-01-19 2011-08-17 莱芜雅鲁生化有限公司 可调节板式换热器
CN202734616U (zh) * 2012-06-11 2013-02-13 苏州优能节能技术有限公司 一种模块化废气余热回收装置
CN203605754U (zh) * 2013-11-14 2014-05-21 深圳智慧能源技术有限公司 模块式换热器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111442542A (zh) * 2020-05-09 2020-07-24 中国科学院工程热物理研究所 射流和对流换热相结合的吸热装置及应用
CN118391699A (zh) * 2024-06-06 2024-07-26 华北电力大学 高温烟气与高熔点熔盐的模块化换热装置

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