WO2001014813A1 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

Info

Publication number
WO2001014813A1
WO2001014813A1 PCT/CN2000/000111 CN0000111W WO0114813A1 WO 2001014813 A1 WO2001014813 A1 WO 2001014813A1 CN 0000111 W CN0000111 W CN 0000111W WO 0114813 A1 WO0114813 A1 WO 0114813A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
heat exchange
heat medium
row
tubes
Prior art date
Application number
PCT/CN2000/000111
Other languages
English (en)
Chinese (zh)
Inventor
Feng Lang
Original Assignee
Feng Lang
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 99117046 external-priority patent/CN1286391A/zh
Priority claimed from CN 99117047 external-priority patent/CN1286392A/zh
Priority claimed from CN 99117045 external-priority patent/CN1286390A/zh
Priority claimed from CN00100429A external-priority patent/CN1307177A/zh
Application filed by Feng Lang filed Critical Feng Lang
Priority to AU45342/00A priority Critical patent/AU4534200A/en
Publication of WO2001014813A1 publication Critical patent/WO2001014813A1/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
    • 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

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 communicate with each other. They are located in a shell of the heat exchange device to form a heat exchange cavity, and a heat medium flowing in the row of tubes exchanges heat with a high temperature fluid.
  • the present invention also provides a heating and air-conditioning device for a motor vehicle.
  • the air-conditioning device includes a heat medium source and a heat medium conveying device.
  • the engine exhaust heat is a distillation device with energy as the energy source.
  • the distillation device includes a heat recovery device connected to the exhaust gas of the engine.
  • a row of tubes is provided in the heat recovery device.
  • the row of tubes is in fluid communication with the heat medium conveying device.
  • the heat medium flowing in the medium exchanges heat with the engine exhaust;
  • the heat recovery device also includes a heat medium injection tube and a heat medium discharge tube, which are in fluid communication with both ends of the discharge tube and are located in a heat recovery casing to form Heat exchange cavity.
  • a row of tubes is placed in the heat exchanger shell and a heat exchange cavity is formed; two ends of the row of tubes are respectively connected with a heat exchange medium injection tube and a discharge tube.
  • the exhaust pipe is placed in the heat exchanger shell to form a heat exchange cavity; two ends of the exhaust pipe are respectively connected to the heat exchange medium injection pipe and the exhaust pipe.
  • a continuous spoiler fin set is connected between the outer tube walls of the row of tubes to increase the heat exchange area.
  • a row of tubes is placed in the heat exchanger shell and a heat exchange cavity is formed; two ends of the row of tubes are respectively connected with a heat exchange medium injection tube and a discharge tube.
  • a continuous spoiler tube group is connected between the outer tube walls of the row of tubes to increase the heat exchange area.
  • the continuous spoiler group can be connected by a variety of single tubes.
  • the heat conductive medium in the liquid storage tank is pumped into a heat recovery device connected to the engine exhaust by a liquid pump, and then the heat conductive medium that has obtained heat from the heat recovery device enters the radiator. In the middle, the air is heated to warm air by a radiator to achieve a heating effect.
  • 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 shows 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 gas valve 70, and an engine 80, and the components are connected to each other To form a loop.
  • heat recovery device heat exchanger
  • Its working principle is: First, connect the heat recovery device 1 to the exhaust of the engine 80, and let the engine exhaust gas pass through the heating chamber of the heat recovery device 1; pump the heat transfer medium from the liquid storage tank 30 into the heat through the liquid pump 50
  • the heat recovery is performed in the recoverer 1, and the heat-conducting medium after the heat recovery enters the radiator 20, dissipates the heat to the environment, and realizes heat removal.
  • the heat-radiating 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 opened to communicate with the balance tank 40, and the balance 70 on the balance tank 40 is directly connected to the atmosphere, so as to achieve the purpose of pressure reduction.
  • the pressure reducing valve 60 of the pressurized liquid storage tank 3 is automatically closed.
  • the figure 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 arranged 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.
  • 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.
  • FIG. 4 is a cross-sectional view of an embodiment of the heat exchange cavity taken along the line C_C in FIG. 2, showing the arrangement structure of the heat exchange core.
  • the row of tubes 3 may be in a wave shape, or any appropriate arrangement that is beneficial to improving 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 respectively provided at two ends of the heat exchanger shell 8.
  • 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 operation of the heat exchanger 1 of the present invention will be described below with reference to Figs.
  • the heat medium injection pipe 1 and the heat medium discharge pipe 2 communicate with both ends of the discharge 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 effect of heat convection.
  • 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. 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 chamber 4 to increase the temperature of the heat exchange medium. High, and the temperature of high-temperature gas and liquid decreases, thus achieving the purpose of heat exchange.
  • 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 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 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.
  • 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.
  • the continuous spoiler fin set further increases the heat exchange area. At the same time, the form of piping can greatly improve the uniform performance of heat exchange.
  • 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.
  • a 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 ' It is clamped in the row pipe 3.
  • Figures 10 and 11 show a corrugated single-flow tube 11.
  • the operation of the heat exchanger 1 with 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 communicate 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 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 Increased thermal convection effect.
  • the heat medium injection pipe 1 is in the lower part and the heat medium discharge pipe 2 is in the upper part.
  • 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 manufacture, high heat exchange efficiency, uniform heat exchange, small size and compactness, and good vibration resistance, and is suitable as a replacement product of the existing tube heat exchanger. .

Landscapes

  • 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'échangeur thermique de l'invention est constitué d'une enveloppe (8) définissant un orifice d'entrée (9) et un orifice de sortie (5) débitant le fluide réchauffé. A l'intérieur de l'enveloppe (8) se trouve un tube plat (3) dont les extrémités sont raccordées l'une à orifice d'entrée (9) et l'autre à l'orifice de sortie (5) débitant le fluide réchauffé. L'ensemble définit une cavité (4) entre le tube (3) et l'enveloppe (8). La chaleur d'un fluide à haute température circulant dans la cavité (4) se transfère au fluide circulant dans le tube (3) de façon à réchauffer ce fluide. Cette invention convient comme dispositif de récupération de la chaleur des gaz d'échappement d'une automobile pour chauffer l'habitacle.
PCT/CN2000/000111 1999-08-25 2000-05-11 Echangeur thermique WO2001014813A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45342/00A AU4534200A (en) 1999-08-25 2000-05-11 Heat exchanger

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN 99117046 CN1286391A (zh) 1999-08-25 1999-08-25 夹层导槽排管高效换热器
CN99117045.8 1999-08-25
CN 99117047 CN1286392A (zh) 1999-08-25 1999-08-25 夹层导槽管式扰流高效换热器
CN99117046.6 1999-08-25
CN99117047.4 1999-08-25
CN 99117045 CN1286390A (zh) 1999-08-25 1999-08-25 夹层导槽高效换热器
CN00100429.8 2000-01-31
CN00100429A CN1307177A (zh) 2000-01-31 2000-01-31 发动机尾气热能驱动的暖空调装置

Publications (1)

Publication Number Publication Date
WO2001014813A1 true WO2001014813A1 (fr) 2001-03-01

Family

ID=27429877

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2000/000111 WO2001014813A1 (fr) 1999-08-25 2000-05-11 Echangeur thermique

Country Status (2)

Country Link
AU (1) AU4534200A (fr)
WO (1) WO2001014813A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10428713B2 (en) 2017-09-07 2019-10-01 Denso International America, Inc. Systems and methods for exhaust heat recovery and heat storage
CN114963836A (zh) * 2022-07-29 2022-08-30 中国电建集团华东勘测设计研究院有限公司 能量回收降噪水箱、排气降噪和余热回收装置

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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10428713B2 (en) 2017-09-07 2019-10-01 Denso International America, Inc. Systems and methods for exhaust heat recovery and heat storage
CN114963836A (zh) * 2022-07-29 2022-08-30 中国电建集团华东勘测设计研究院有限公司 能量回收降噪水箱、排气降噪和余热回收装置

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Publication number Publication date
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