CN101738110A - Double-pipe heat exchanger with deflection fins deviating and spreading at both sides - Google Patents

Double-pipe heat exchanger with deflection fins deviating and spreading at both sides Download PDF

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Publication number
CN101738110A
CN101738110A CN201010300534A CN201010300534A CN101738110A CN 101738110 A CN101738110 A CN 101738110A CN 201010300534 A CN201010300534 A CN 201010300534A CN 201010300534 A CN201010300534 A CN 201010300534A CN 101738110 A CN101738110 A CN 101738110A
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CN
China
Prior art keywords
fins
pipe
heat exchanger
wall
sides
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.)
Granted
Application number
CN201010300534A
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Chinese (zh)
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CN101738110B (en
Inventor
陈江平
严诗杰
金鑫
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Priority to CN2010103005348A priority Critical patent/CN101738110B/en
Publication of CN101738110A publication Critical patent/CN101738110A/en
Application granted granted Critical
Publication of CN101738110B publication Critical patent/CN101738110B/en
Expired - Fee Related legal-status Critical Current
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    • 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
    • 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
    • F28D7/10—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 arranged one within the other, e.g. concentrically
    • F28D7/106—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 arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation

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  • 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

The invention relates to a double-pipe heat exchanger with deflection fins deviating and spreading at both sides in the technical field of machines. The heat exchanger comprises an outer pipe, an inner pipe and a plurality of fins, wherein the outer pipe is sleeved to the inner pipe; the fins are arranged in an annular space between the outer pipe and the inner pipe and comprise supporting pieces and deflection fins; both ends of the supporting pieces are respectively connected with the inner wall of the outer pipe and the outer wall of the inner pipe; the supporting pieces are arranged along the radial direction of the inner wall of the outer pipe; and one ends of the deflection fins are connected with the outer wall of the inner pipe, while other ends are deviated towards both sides by forming angles of 5-20 degrees along the radial direction of the outer pipe. At the same time of being used as supports of the inner pipe and the outer pipe, the fins also increase the heat exchange area of the inner pipe, thereby not only reducing the heat transfer of the fins to the outer pipe, but also ensuring that media flowing though can reduce or destroy a boundary layer and increase perturbance so as to improve the heat exchange efficiency. The whole device has large heat exchange area, small volume, simple structure and less material consumption.

Description

The double-tube heat exchanger that the skew of deflection fins both sides launches
Technical field
What the present invention relates to is a kind of device of field of mechanical technique, the double-tube heat exchanger that the skew of in particular a kind of deflection fins both sides launches.
Background technology
Double-tube heat exchanger has good heat exchange property, so obtained using widely in fields such as refrigeration air-conditioner, chemical industry, power.But the double-tube heat exchanger that uses is to feed water or steam at pipeline at present, and to reach the effect of heat exchange, the coefficient of heat transfer of such double-tube heat exchanger is not high enough, and in order to reach best heat exchange effect, the heat exchanger volume of manufacturing is huge, has expended lot of materials.The coefficient of overall heat transmission is not high in addition, makes heat-exchange time long.A kind of double-tube heat exchanger is arranged on the industrial sector, forms by the two tubes of coaxial package, two kinds of mediums respectively in the pipe ring crack with interior pipe in relative mobile, carry out heat exchange.But only at the cylinder of tube wall, heat-transfer effect is not fine to heat transfer area.
Find through literature search prior art, China's utility model patent publication number: CN2336312, this technology discloses a kind of double-tube heat exchanger, and at two pipe nipple places of outer tube and inner sleeve, connecting respectively has the annular space guide wire that runs through between this section inner and outer pipe annular space.Be provided with the center mozzle at interior tube chamber internal frame.This mozzle can be that the streamline envelope core mozzle of band spiral stream guidance fin also can be the streamline envelope core mozzle of tape spool to straight fins.This heat exchanger structure complexity, consume material is more.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of deflection fins both sides double-tube heat exchanger that skew launches is provided, design by improvement,, allow the medium that flows through to reduce or to destroy the boundary layer the even cutting of a whole fin to the fin of connection inner and outer pipes in the pipe ring, increase disturbance, thereby improved heat exchange efficiency, simplified other unnecessary structures simultaneously, only pipe in the outer tube sleeve, some fins are evenly distributed in the pipe ring, have increased interior pipe heat exchange area.
The present invention is achieved by the following technical solutions, the present invention includes: outer tube, interior pipe and several fins, and wherein: outer tube sleeve is connected to interior pipe, and fin is arranged in the annular space between outer tube and the interior pipe.
Described fin comprises: support chip and deflection fins, wherein: the two ends of support chip link to each other with outer wall of inner tube with outer tube wall respectively, support chip is along the radially setting of outer tube wall, one end of deflection fins links to each other with outer wall of inner tube, and the other end radially is 5 ° ~ 20 ° directions to both sides skew setting along outer tube wall.
Described outer tube, interior pipe and fin all are that aluminium is made.
Described support chip and deflection fins equal and opposite in direction, number equates.
The present invention has the following advantages compared to existing technology: when the present invention uses, when fin is cooked the inner and outer pipes support, be again that interior pipe increases heat exchange area, not only reduced the heat transfer of fin, allowed the medium that flows through to reduce or to destroy the boundary layer simultaneously, increased disturbance to outer tube, thereby improved heat exchange efficiency, whole device heat exchange area is big, and volume is little, and is simple in structure and consume material is few.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a partial schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is to implement under the prerequisite in technical solution of the present invention.Provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: outer tube 1, interior pipe 2 and five fins 3, wherein: outer tube 1 and the 2 coaxial sockets of interior pipe, five fins 3 evenly are arranged in the annular space between outer tube 1 and the interior pipe 2.Outer tube 1, interior pipe 2 and fin 3 all are that aluminium is made.
As shown in Figure 2, each fin 3 all comprises: support chip 4 and deflection fins 5, wherein: the two ends of support chip 4 link to each other with interior pipe 2 outer walls with outer tube 1 inwall respectively, pipe 2 outer walls in deflection fins 5 one ends connect, and the other end radially is 5 ° ~ 20 ° directions to both sides skew expansion along outer tube 1 inwall.Support chip 4 and deflection fins 5 equal and opposite in directions, number equates.
During use, two kinds of mediums respectively in annular space with interior pipe 2 in relative mobile, surface and interior pipe 2 outer walls by fin 3 carry out heat exchange.When medium process support chip 4 that in annular space, flows and deflection fins 5, produce more bigger streaming, thereby improved the heat exchange effect.

Claims (3)

1. deflection fins both sides are offset the double-tube heat exchanger that launches, comprise: outer tube, interior pipe and several fins, wherein: outer tube sleeve is connected to interior pipe, fin is arranged in the annular space between outer tube and the interior pipe, it is characterized in that, described fin comprises: support chip and deflection fins, wherein: the two ends of support chip link to each other with outer wall of inner tube with outer tube wall respectively, support chip is along the radially setting of outer tube wall, one end of deflection fins links to each other with outer wall of inner tube, and the other end radially is 5 ° ~ 20 ° directions to both sides skew setting along outer tube wall.
2. the double-tube heat exchanger that the skew of deflection fins according to claim 1 both sides launches is characterized in that described outer tube, interior pipe and fin all are that aluminium is made.
3. the double-tube heat exchanger that the skew of deflection fins according to claim 1 both sides launches is characterized in that, the equal and opposite in direction of described support chip and deflection fins, and number equates.
CN2010103005348A 2010-01-21 2010-01-21 Double-pipe heat exchanger with deflection fins deviating and spreading at both sides Expired - Fee Related CN101738110B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010103005348A CN101738110B (en) 2010-01-21 2010-01-21 Double-pipe heat exchanger with deflection fins deviating and spreading at both sides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010103005348A CN101738110B (en) 2010-01-21 2010-01-21 Double-pipe heat exchanger with deflection fins deviating and spreading at both sides

Publications (2)

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CN101738110A true CN101738110A (en) 2010-06-16
CN101738110B CN101738110B (en) 2011-06-29

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080941A (en) * 2011-02-12 2011-06-01 亓登利 Dual-cavity composite conduction pipe
CN102101230A (en) * 2011-01-14 2011-06-22 元大金属实业（深圳）有限公司 Vehicle frame tube and manufacturing method thereof
CN102278244A (en) * 2011-07-22 2011-12-14 北京北机机电工业有限责任公司 Fin-type heterogeneous metal heat exchanger for fuel oil and gas heater
CN102425971A (en) * 2011-11-10 2012-04-25 上海交通大学 Heat exchanger tube with staggered fins as well as manufacturing method and application of heat exchange tube
CN102466284A (en) * 2010-11-07 2012-05-23 倪国森 Heat collecting ground temperature air-conditioning system with circulation loop honeycomb heat collectors in series connection
WO2012078609A3 (en) * 2010-12-06 2013-01-03 Saudi Arabian Oil Company Combined colling of lube/seal oil and sample coolers
CN103175429A (en) * 2013-04-18 2013-06-26 南京工业大学 Multidirectional corrugated inner finned tube
CN104329970A (en) * 2014-11-25 2015-02-04 李金鹏 Finned casing pipe-type compound air cooler pipe bundle
CN104329969A (en) * 2014-11-25 2015-02-04 李金鹏 Sleeve bundle for heat exchange
CN105841388A (en) * 2016-03-30 2016-08-10 杨溢 Saline solution refrigerating machine capable of utilizing waste heat comprehensively
CN105973018A (en) * 2016-05-26 2016-09-28 镇江市经纬工程机械有限公司 Shell-tube type condenser
CN106225546A (en) * 2016-08-26 2016-12-14 中船圣汇装备有限公司 A kind of double-deck heat exchange shell structure
CN108195051A (en) * 2017-11-24 2018-06-22 珠海格力电器股份有限公司 A kind of refrigerant heating unit and air conditioner
CN108408344A (en) * 2018-04-18 2018-08-17 鞍山辉润机械制造有限公司 A kind of two-way heated type Desulphurization screw conveyor
CN109764707A (en) * 2019-03-14 2019-05-17 南京工程学院 A kind of rotary extension detachable type fin heat pipe
CN110174009A (en) * 2019-06-12 2019-08-27 珠海格力电器股份有限公司 Double-tube heat exchanger with fin
CN110822949A (en) * 2019-10-12 2020-02-21 西安交通大学 Column-plate heat exchanger and using method and cleaning and maintaining method thereof
CN111121497A (en) * 2020-01-20 2020-05-08 郑州科林车用空调有限公司 Novel regenerator structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB820772A (en) * 1956-11-21 1959-09-23 Andre Huet Improvements in tubular heat exchangers
GB838984A (en) * 1957-08-26 1960-06-22 Fairey Co Ltd Improvements relating to the formation of external fins on metal tube stock
CN2722176Y (en) * 2004-07-29 2005-08-31 赵石冠 Heat exchanging pipe
CN2791576Y (en) * 2005-05-16 2006-06-28 蒋瑾瑶 Efficient heat exchange pipe
CN2906525Y (en) * 2006-04-29 2007-05-30 牛玉振 Inner finned tube

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102466284A (en) * 2010-11-07 2012-05-23 倪国森 Heat collecting ground temperature air-conditioning system with circulation loop honeycomb heat collectors in series connection
WO2012078609A3 (en) * 2010-12-06 2013-01-03 Saudi Arabian Oil Company Combined colling of lube/seal oil and sample coolers
US9052146B2 (en) 2010-12-06 2015-06-09 Saudi Arabian Oil Company Combined cooling of lube/seal oil and sample coolers
CN102101230A (en) * 2011-01-14 2011-06-22 元大金属实业（深圳）有限公司 Vehicle frame tube and manufacturing method thereof
CN102080941A (en) * 2011-02-12 2011-06-01 亓登利 Dual-cavity composite conduction pipe
CN102278244A (en) * 2011-07-22 2011-12-14 北京北机机电工业有限责任公司 Fin-type heterogeneous metal heat exchanger for fuel oil and gas heater
CN102425971A (en) * 2011-11-10 2012-04-25 上海交通大学 Heat exchanger tube with staggered fins as well as manufacturing method and application of heat exchange tube
CN102425971B (en) * 2011-11-10 2014-02-19 上海交通大学 Heat exchanger tube with staggered fins as well as manufacturing method and application of heat exchange tube
CN103175429A (en) * 2013-04-18 2013-06-26 南京工业大学 Multidirectional corrugated inner finned tube
CN103175429B (en) * 2013-04-18 2016-02-03 南京工业大学 Multidirectional wave-li ke internally finned tubes
CN104329970A (en) * 2014-11-25 2015-02-04 李金鹏 Finned casing pipe-type compound air cooler pipe bundle
CN104329969A (en) * 2014-11-25 2015-02-04 李金鹏 Sleeve bundle for heat exchange
CN105841388A (en) * 2016-03-30 2016-08-10 杨溢 Saline solution refrigerating machine capable of utilizing waste heat comprehensively
CN105841388B (en) * 2016-03-30 2019-05-14 杨溢 A kind of salting liquid refrigeration machine comprehensively utilizing waste heat
CN105973018A (en) * 2016-05-26 2016-09-28 镇江市经纬工程机械有限公司 Shell-tube type condenser
CN106225546A (en) * 2016-08-26 2016-12-14 中船圣汇装备有限公司 A kind of double-deck heat exchange shell structure
CN106225546B (en) * 2016-08-26 2018-04-24 中船圣汇装备有限公司 A kind of double-deck heat exchange shell structure
CN108195051A (en) * 2017-11-24 2018-06-22 珠海格力电器股份有限公司 A kind of refrigerant heating unit and air conditioner
CN108195051B (en) * 2017-11-24 2023-09-22 珠海格力电器股份有限公司 Refrigerant heating device and air conditioner
CN108408344B (en) * 2018-04-18 2019-10-11 鞍山辉润机械制造有限公司 A kind of two-way heated type Desulphurization screw conveyor
CN108408344A (en) * 2018-04-18 2018-08-17 鞍山辉润机械制造有限公司 A kind of two-way heated type Desulphurization screw conveyor
CN109764707A (en) * 2019-03-14 2019-05-17 南京工程学院 A kind of rotary extension detachable type fin heat pipe
CN109764707B (en) * 2019-03-14 2024-02-13 南京工程学院 Rotary telescopic detachable fin heat pipe
CN110174009A (en) * 2019-06-12 2019-08-27 珠海格力电器股份有限公司 Double-tube heat exchanger with fin
CN110822949A (en) * 2019-10-12 2020-02-21 西安交通大学 Column-plate heat exchanger and using method and cleaning and maintaining method thereof
CN110822949B (en) * 2019-10-12 2021-01-29 西安交通大学 Column-plate heat exchanger and using method and cleaning and maintaining method thereof
CN111121497A (en) * 2020-01-20 2020-05-08 郑州科林车用空调有限公司 Novel regenerator structure

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