WO2001014814A1 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
WO2001014814A1
WO2001014814A1 PCT/CN2000/000112 CN0000112W WO0114814A1 WO 2001014814 A1 WO2001014814 A1 WO 2001014814A1 CN 0000112 W CN0000112 W CN 0000112W WO 0114814 A1 WO0114814 A1 WO 0114814A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
heat exchange
heat medium
pipe
row
Prior art date
Application number
PCT/CN2000/000112
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 CN00100429A external-priority patent/CN1307177A/zh
Application filed by Feng Lang filed Critical Feng Lang
Priority to AU45343/00A priority Critical patent/AU4534300A/en
Publication of WO2001014814A1 publication Critical patent/WO2001014814A1/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. . Brief description of the invention
  • 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 exhaust pipe exchanges heat with a high temperature fluid. A continuous spoiler fin is connected between the outer tube walls of the exhaust pipe. Group to increase heat transfer 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 also characterized by a heat recovery device connected to the engine exhaust. A row of tubes is provided in the heat recovery device, and the row of tubes and the heat medium conveying device fluid Connected so that the heat medium flowing in the exhaust pipe exchanges heat with the engine exhaust, and a continuous spoiler fin group is connected between the outer pipe walls of the exhaust pipe 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.
  • a heat recovery device heat exchanger
  • 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, and the heat-conducting medium after heat recovery enters the radiator 20 to dissipate the heat to the environment. Achieve heating.
  • the heat-conducting thermal 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 valve 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.
  • 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, showing 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 pipe discharge can greatly improve the 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 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 that of the first embodiment, and therefore, the same or similar components are the same. Or similar labels.
  • 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 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 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 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un échangeur thermique comprenant une enveloppe (8), ainsi qu'un orifice d'entrée (9) et un orifice de sortie (5) pour le fluide chauffé. L'enveloppe (8) renferme un tube plat (3), relié respectivement, à ses deux extrémités, à l'orifice d'entrée (9) et à l'orifice de sortie (5) destinés au fluide chauffé. Une cavité (4) est formée entre le tube (3) et l'enveloppe (8). La chaleur dégagée par un fluide à haute température circulant dans ladite cavité (4) est transférée au fluide chauffé passant dans le tube (3). Le tube (3) est pourvu, entre ses parois extérieures, de nervures destinées à accroître la zone d'échange thermique. L'invention peut être utilisée comme dispositif de récupération de chaleur de véhicule à moteur pour le chauffage de l'habitable.
PCT/CN2000/000112 1999-08-25 2000-05-11 Echangeur thermique WO2001014814A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45343/00A AU4534300A (en) 1999-08-25 2000-05-11 Heat exchanger

Applications Claiming Priority (4)

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
CN99117046.6 1999-08-25
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
WO2001014814A1 true WO2001014814A1 (fr) 2001-03-01

Family

ID=25739168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2000/000112 WO2001014814A1 (fr) 1999-08-25 2000-05-11 Echangeur thermique

Country Status (2)

Country Link
AU (1) AU4534300A (fr)
WO (1) WO2001014814A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111442680A (zh) * 2019-08-30 2020-07-24 江苏科技大学 一种具有s形和z形复合槽道的新型flng换热器
CN111497565A (zh) * 2020-06-12 2020-08-07 东莞市技师学院(东莞市高级技工学校) 一种新能源汽车能量回收装置

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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111442680A (zh) * 2019-08-30 2020-07-24 江苏科技大学 一种具有s形和z形复合槽道的新型flng换热器
CN111442680B (zh) * 2019-08-30 2024-04-16 江苏科技大学 一种具有s形和z形复合槽道的新型flng换热器
CN111497565A (zh) * 2020-06-12 2020-08-07 东莞市技师学院(东莞市高级技工学校) 一种新能源汽车能量回收装置

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Publication number Publication date
AU4534300A (en) 2001-03-19

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