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WO2001014812A1 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
WO2001014812A1
WO2001014812A1 PCT/CN2000/000110 CN0000110W WO0114812A1 WO 2001014812 A1 WO2001014812 A1 WO 2001014812A1 CN 0000110 W CN0000110 W CN 0000110W WO 0114812 A1 WO0114812 A1 WO 0114812A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
heat exchange
heat medium
tube
row
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/CN2000/000110
Other languages
English (en)
Chinese (zh)
Inventor
Feng Lang
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.)
Individual
Original Assignee
Individual
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
Priority claimed from CN 99117047 external-priority patent/CN1286392A/zh
Priority claimed from CN00100429A external-priority patent/CN1307177A/zh
Application filed by Individual filed Critical Individual
Priority to AU45341/00A priority Critical patent/AU4534100A/en
Publication of WO2001014812A1 publication Critical patent/WO2001014812A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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
    • F28D1/03—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 plate-like or laminated conduits
    • F28D1/0358—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 plate-like or laminated conduits the conduits being formed by bent plates
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • 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
    • F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F28D7/087—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
    • 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

Definitions

  • the invention relates to a heat exchange device. Specifically, it relates to a heating device that obtains heating by using the recovered engine exhaust heat energy as an energy source.
  • Heat exchangers are widely used in chemical, petroleum, pharmaceutical, and HVAC engineering fields, resulting in heat exchangers of various models and specifications, most commonly used tube heat exchangers, which are suitable for different occasions. It is composed of a head, a head, a partition, a heat exchange box and the like. Although it has the advantages of simple structure and low cost, due to the problems of its structural design, the adopted pipe diameter is large and the heat dissipation pipe is relatively long, so that its heat exchange efficiency is low, the pipe resistance is large, and the heat exchange uniformity is poor. Its large volume and poor anti-vibration performance severely restrict its scope of application.
  • the existing heating air-conditioning has a complicated structure, especially the heating and air-conditioning used in conjunction with the engine. Not only is the structure complicated, but it also consumes the useful power of the engine.
  • the independent fuel-based heating and air-conditioning consumes a lot of fuel, and the structure is not simple. .
  • An object of the present invention is to overcome the shortcomings of the prior art and provide an efficient heat exchanger with a simple and reasonable structure, high heat exchange efficiency, good temperature tolerance, and long service life.
  • Another object of the present invention is to provide a heating and air-conditioning device driven by recovering thermal energy wasted in the exhaust gas of an engine, which saves energy and has a simple structure.
  • the present invention provides a heat exchange device, which includes a heat medium injection pipe and a heat medium discharge pipe, and is characterized in that a row of pipes is in fluid communication with the heat medium injection pipe and the heat medium discharge pipe at both ends thereof. They are located in a shell of the heat exchange device to form a heat exchange cavity. A heat medium flowing in the heat exchanges with the high temperature fluid, and a continuous spoiler tube group is connected between the outer tube walls of the row of tubes. To increase the heat exchange area.
  • the invention also provides a heating and air-conditioning device for a motor vehicle. It includes a heat medium source and a heat medium conveying device, which is characterized in that it also includes a heat recovery device connected to the engine exhaust. A row of tubes is provided in the heat recovery device, and the row tubes are in fluid communication with the heat medium conveying device. As a result, the heat medium flowing in the row of tubes performs heat exchange with the engine exhaust, and a continuous spoiler tube group is connected between the outer tube walls of the row of tubes to increase the heat exchange area.
  • FIG. 1 is a schematic diagram of a system structure of an embodiment of a heating device according to the present invention.
  • Fig. 2 is a partially cutaway front view of the heat exchanger of the present invention.
  • 3A-3C are enlarged views of part A in FIG. 2, respectively, showing various embodiments of the section of the row of pipes.
  • FIG. 4 is a cross-sectional view of an embodiment of the heat exchange cavity taken along the line C-C in FIG. 2.
  • FIG. 5 is a simplified perspective view of the heat exchange core shown in FIG. 4.
  • FIG. 6 is a cross-sectional view of another embodiment of the heat exchange cavity taken along the line C-C in FIG. 2.
  • FIG. 7 is a simplified perspective view of the heat exchange core shown in FIG. 6.
  • FIG. 8 is a cross-sectional view of another embodiment of the heat exchange cavity taken along the line C-C in FIG. 2.
  • FIG. 9 is a simplified perspective view of the heat exchange core shown in FIG. 8.
  • FIG. 10 is a front view of the corrugated spoiler single pipe shown in FIG. 8.
  • Fig. 11 is an end view of a corrugated spoiler single tube. Detailed description of the invention
  • FIG. 1 illustrates a system structure of an embodiment of a heating device according to the present invention.
  • the device includes a heat recovery device (heat exchanger) 1, a radiator 20, a liquid storage tank 30, a balance tank 40, a liquid pump 50, a pressure reducing valve 60, a balance air width 70, and an engine 80, and the components are connected to each other.
  • the working principle is as follows: First, the heat recoverer 1 is connected to the exhaust gas of the engine 80, and the engine exhaust gas is returned through the heat. The heat-collecting cavity of the receiver 1; the heat-conducting medium is pumped from the liquid storage tank 30 into the heat-recovery device 1 through the liquid pump 50 for heat recovery. Realize fetching.
  • the heat-dissipating heat-conducting medium is returned to the liquid storage tank 30 and then the heating cycle is repeated.
  • the pressure reducing valve 60 in the liquid storage tank 30 is automatically closed and communicates with the balance tank 40.
  • the balance valve 70 on the balance tank 40 is directly connected to the atmosphere, thereby achieving the purpose of pressure reduction.
  • the pressure reducing valve 60 of the liquid storage tank 3 is automatically closed.
  • Fig. 2 shows a heat exchanger 1 for a heating device.
  • the heat exchanger includes a heat exchanger shell 8.
  • the heat exchanger shell is made into a square tube shape, but the present invention is not limited to this, and it may be cylindrical. Shape or any other suitable shape.
  • the heat exchanger shell 8 defines a heat exchange cavity 4, and a heat exchange core is provided in the cavity.
  • the heat exchange core includes a row of tubes 3, which are formed by two thin substrates with concave and convex grooves, or sandwiched by narrow strips and the like sandwiched between two flat thin substrates to form a sandwich guide groove. tube.
  • the cross section of the row of pipes 3 may have various forms as shown in Figs. 3A to 3C, which are partially enlarged.
  • FIG. 4 is a cross-sectional view of an embodiment of the heat exchange cavity taken along the line C_C in FIG. 2, and illustrates the arrangement structure of the heat exchange core.
  • the row of tubes 3 may be wavy, or any appropriate arrangement that is beneficial to improve the heat exchange efficiency.
  • Both ends of the discharge pipe 3 are in fluid communication with the heat medium injection pipe 1 and the heat medium discharge pipe 2, respectively.
  • a heat exchange cavity inlet 6 and a heat exchange cavity outlet 7 are provided at two ends of the heat exchanger shell 8, respectively.
  • the heat medium discharge nozzle 10 and the heat medium injection nozzle 9 are respectively provided near the inlet 6 and the outlet 7, and they are in fluid communication with the corresponding heat medium discharge pipe 2 and the heat medium injection pipe 1, respectively.
  • the heat medium injection pipe 1 and the heat medium discharge pipe 2 are in communication with both ends of the pipe 3 and are placed in the heat exchanger shell 8 to form a heat exchange cavity 4.
  • the heat medium injection nozzle 9 is placed at the heat exchange cavity outlet 7 and the heat medium discharge nozzle 10 is placed at the heat exchange cavity inlet 6 to increase the heat convection effect.
  • the present invention is configured such that the heat medium injection pipe 1 is in the lower part and the heat medium discharge pipe 2 is in the upper part. State. A high-temperature liquid or gas is passed into the heat exchange chamber, and at the same time, it is injected into the nozzle through the heat medium.
  • the sandwich guide groove form in the tube structure adopted by the present invention has the function of a capillary tube, and it is easy to form a thermal directional convection effect, which is beneficial to the flow of the medium, greatly reducing the resistance in the tube and improving the heat exchange efficiency.
  • the form of piping can greatly improve the uniform performance of heat exchange.
  • FIG. 6 and 7 show the structure of a heat exchange chamber 4 'according to a second embodiment of the present invention.
  • the structure of the heat exchange cavity 4 ' is similar to that of the first embodiment. Therefore, the same or similar parts are given the same or similar reference numerals.
  • a continuous spoiler fin group 5 is coupled between the outer tube walls of the row tube 3.
  • the operation of the heat exchanger 1 having the heat exchange chamber 4 ' will be described below with reference to Figs. 2, 6 and 7.
  • the heat medium injection pipe 1 and the heat medium discharge pipe 2 communicate with both ends of the pipe 3 and are placed in the heat exchanger shell 8 to form a heat exchange cavity 4 '.
  • the continuous spoiler fin group 5 is connected between the outer tube walls of the row tube 3 to increase the heat exchange area.
  • the heat medium injection nozzle 9 is placed at the heat exchange cavity outlet 7 and the heat medium discharge nozzle 10 is placed at the heat exchange cavity inlet 6 to increase the heat convection effect.
  • a state in which the heat medium injection pipe 1 is in the lower part and the heat medium discharge pipe 2 is in the upper part is provided.
  • a high-temperature liquid or gas is passed into the heat exchange chamber, and at the same time, the heat exchange medium is injected through the heat medium injection nozzle 9. At this time, the heat exchange medium will exchange heat through the discharge pipe 3 and then be discharged from the heat medium discharge pipe port 10.
  • the heat exchange medium performs sufficient heat exchange with the high temperature liquid and gas in the heat exchange cavity 4 ', so that the temperature of the heat exchange medium When the temperature rises, the temperature of the high-temperature gas and liquid decreases, thereby achieving the purpose of heat exchange.
  • the sandwich guide groove form in the tube structure adopted by the invention has the function of a capillary tube, which is easy to form a thermal directional convection effect, which is conducive to the flow of the medium, greatly reducing the resistance in the tube and improving the heat exchange efficiency. And continuous
  • the arrangement of the spoiler fin group further increases the heat exchange area.
  • the form of pipe can be
  • FIG. 8-11 show the structure of a heat exchange cavity 4 "according to a third embodiment of the present invention.
  • the structure of the heat exchange cavity 4" is similar to the structure of the first embodiment. Therefore, the same or similar components use the same or Similar numbers.
  • FIGS. 8 and 9 there is a corrugated spoiler single pipe 11 placed between the outer pipe walls of the row pipe 3, and the tube of the single pipe 11 and the end of the pipe are connected to each other to form a continuous spoiler pipe group 5 'Clamped in row 3.
  • Figures 10 and 11 show a corrugated flow around a single tube 1 1.
  • the operation of the heat exchanger 1 having a heat exchange cavity 4 " is described below with reference to Figs. 2, 8 and 9. Since the heat medium injection pipe 1 and the heat medium discharge pipe 2 are in communication with both ends of the pipe 3, and are placed in Inside the heat exchanger shell 8 thereby forming a heat exchange cavity 4 ".
  • the corrugated spoiler single tube 11 is placed between the outer tube walls of the row tube 3, and the tube of the single tube 11 and the end of the tube are connected to each other to form a continuous spoiler tube group 5 'clamped in the row tube 3 to increase Large heat transfer area.
  • the heat medium injection nozzle 9 is placed at the heat exchange cavity outlet 7 and the heat medium discharge nozzle 10 is placed at the heat exchange cavity inlet 6 to increase the heat convection effect.
  • the state where the heat medium injection pipe 1 is at the lower part and the heat medium discharge pipe 2 is at the upper part is provided.
  • a high-temperature liquid or gas is passed into the heat exchange chamber, and at the same time, the heat exchange medium is injected through the heat medium injection nozzle 9.
  • the heat exchange medium will exchange heat through the discharge pipe 3, and then be discharged from the heat medium discharge pipe port 10.
  • the heat exchange medium performs sufficient heat exchange with the high temperature liquid and gas in the heat exchange cavity 4 ", so that the temperature of the heat exchange medium When the temperature rises, the temperature of the high-temperature gas and liquid decreases, thereby achieving the purpose of heat exchange.
  • the sandwich guide groove in the tube structure used in the present invention has the function of a capillary tube, and it is easy to form a thermal directional convection effect, which is beneficial to the flow of the medium.
  • the resistance in the row of tubes is reduced, and the heat exchange efficiency is improved.
  • the setting of the corrugated spoiler tube group further increases the heat exchange area.
  • the form of the row of tubes can greatly improve the uniform performance of heat exchange.
  • the heat exchanger of the present invention has a simple and reasonable structure, simple manufacturing, and heat exchange efficiency. High rate, uniform heat exchange, small size and compactness, and good anti-vibration performance. It is suitable for the replacement of existing tube heat exchangers.

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

Un échangeur thermique comprend une enveloppe (8), une admission (9) et une sortie (5) de fluide chauffé. L'enveloppe (8) contient un tube plat (3) dont les deux extrémités sont reliées à l'admission (9) et à la sortie (5) respectivement de fluide chauffé. Une cavité (4) est formée entre le tube (3) et l'enveloppe (8), la chaleur d'un fluide à haute température s'écoulant dans la cavité (4) étant transférée au lit chauffé s'écoulant dans le tube (3). Des nervures de type tube ont été fixées au tube (3) entre ses parois extérieures afin d'augmenter la surface d'échange thermique. L'invention peut être utilisée comme dispositif de récupération de rejet thermique d'un véhicule automobile pour chauffer l'habitacle.
PCT/CN2000/000110 1999-08-25 2000-05-11 Echangeur thermique Ceased WO2001014812A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45341/00A AU4534100A (en) 1999-08-25 2000-05-11 Heat exchanger

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 99117047 CN1286392A (zh) 1999-08-25 1999-08-25 夹层导槽管式扰流高效换热器
CN99117047.4 1999-08-25
CN00100429A CN1307177A (zh) 2000-01-31 2000-01-31 发动机尾气热能驱动的暖空调装置
CN00100429.8 2000-01-31

Publications (1)

Publication Number Publication Date
WO2001014812A1 true WO2001014812A1 (fr) 2001-03-01

Family

ID=25739169

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2000/000110 Ceased WO2001014812A1 (fr) 1999-08-25 2000-05-11 Echangeur thermique

Country Status (2)

Country Link
AU (1) AU4534100A (fr)
WO (1) WO2001014812A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110511770A (zh) * 2019-09-26 2019-11-29 葛霖 一种荒煤气余热回收换热器上升管及其控制方法
CN110736366A (zh) * 2019-10-17 2020-01-31 沪东重机有限公司 一体两段式换热器和换热方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712372A (en) * 1971-03-01 1973-01-23 Oilin Corp Method and apparatus for deforming a flat on parts of metal strip-type tubing while leaving other parts undeformed
DE2705178A1 (de) * 1976-03-18 1977-09-29 I P R A Ind Piemontese Radiato Waermeaustauscher
US4705214A (en) * 1985-06-04 1987-11-10 Navistar International Transportation Corp. Independent exhaust gas heat system
US4962811A (en) * 1988-10-18 1990-10-16 Showa Aluminum Corporation Heat exchanger
DE4141556A1 (de) * 1991-12-17 1993-06-24 Behr Gmbh & Co Waermetauscher fuer eine abgasanlage eines kraftfahrzeuges
CN2175134Y (zh) * 1993-07-19 1994-08-24 鲁尚文 汽车节能采暖装置
CN2214314Y (zh) * 1994-11-19 1995-12-06 抚顺客车厂 汽车、客车用液流式取暖装置
DE19728247A1 (de) * 1996-07-03 1998-01-08 Zexel Corp Flache Röhre für einen Wärmetauscher

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712372A (en) * 1971-03-01 1973-01-23 Oilin Corp Method and apparatus for deforming a flat on parts of metal strip-type tubing while leaving other parts undeformed
DE2705178A1 (de) * 1976-03-18 1977-09-29 I P R A Ind Piemontese Radiato Waermeaustauscher
US4705214A (en) * 1985-06-04 1987-11-10 Navistar International Transportation Corp. Independent exhaust gas heat system
US4962811A (en) * 1988-10-18 1990-10-16 Showa Aluminum Corporation Heat exchanger
DE4141556A1 (de) * 1991-12-17 1993-06-24 Behr Gmbh & Co Waermetauscher fuer eine abgasanlage eines kraftfahrzeuges
CN2175134Y (zh) * 1993-07-19 1994-08-24 鲁尚文 汽车节能采暖装置
CN2214314Y (zh) * 1994-11-19 1995-12-06 抚顺客车厂 汽车、客车用液流式取暖装置
DE19728247A1 (de) * 1996-07-03 1998-01-08 Zexel Corp Flache Röhre für einen Wärmetauscher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110511770A (zh) * 2019-09-26 2019-11-29 葛霖 一种荒煤气余热回收换热器上升管及其控制方法
CN110511770B (zh) * 2019-09-26 2023-12-12 葛霖 一种荒煤气余热回收换热器上升管及其控制方法
CN110736366A (zh) * 2019-10-17 2020-01-31 沪东重机有限公司 一体两段式换热器和换热方法

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Publication number Publication date
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