CN202614040U - Needle wing sleeve type strengthening heat transfer element - Google Patents

Needle wing sleeve type strengthening heat transfer element Download PDF

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Publication number
CN202614040U
CN202614040U CN 201220195575 CN201220195575U CN202614040U CN 202614040 U CN202614040 U CN 202614040U CN 201220195575 CN201220195575 CN 201220195575 CN 201220195575 U CN201220195575 U CN 201220195575U CN 202614040 U CN202614040 U CN 202614040U
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CN
China
Prior art keywords
heat transfer
tube
groove
needle fin
fin tube
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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.)
Expired - Fee Related
Application number
CN 201220195575
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Chinese (zh)
Inventor
阎昌琪
石帅
丁铭
王佳卓
陈哲雨
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Harbin Engineering University
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Harbin Engineering University
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Priority to CN 201220195575 priority Critical patent/CN202614040U/en
Application granted granted Critical
Publication of CN202614040U publication Critical patent/CN202614040U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model aims to provide a needle wing sleeve type strengthening heat transfer element which comprises two-path joints, a groove sleeve and a needle wing pipe. The number of the two-path joints is two and the two two-path joints are respectively connected with two ends of the needle wing pipe, the needle wing pipe is provided with an inner path, a connecting part where each two-path joint is connected with the needle wing pipe on each two-path joint is inserted into the inner path of the needle wing pipe, and the groove sleeve is sleeved outside the needle wing pipe; each two-path joint comprises a first path and a second path, wherein the first path is communicated with an annular space formed by the needle wing pipe and the groove sleeve, and the second path is communicated with the inner path of the needle wing pipe. The needle wing sleeve type strengthening heat transfer element is superior in heat transfer performance, reasonable in structure, free from bypass leakage flow, safe and reliable, and long in service life.

Description

A kind of pin wing thimble tube enhanced heat transfer component
Technical field
The utility model relates to a kind of heat transfer element of augmentation of heat transfer technical field.
Background technology
Augmentation of heat transfer mainly contains three kinds of methods: increase mean temperature difference with augmentation of heat transfer, increase in the unit volume heat transfer area with augmentation of heat transfer with improve convection transfer rate with augmentation of heat transfer.The method that wherein increases mean temperature difference mainly realizes through changing cold fluid and hot fluid inlet temperature and fluid-flow mode; But this method is usually owing to the restriction of production requirement and economy is difficult for realizing that heat transfer area is the main direction of studying of augmentation of heat transfer with improving convection transfer rate in the unit volume so increase.Chinese scholars has been done big quantity research to the augmentation of heat transfer technology, has invented a lot of enhanced heat transfer components, and heat power engineering has been made very big contribution; Name is called the patent document of " a kind of Needle fin tube ", and (number of patent application: 96209163.4), a kind of Needle fin tube is provided, its parent tube has many long and short round bar shape pin wings outward; Equally spacedly along circumferential and vertical staggered or order arrangement; And be the inclination angle or vertically be welded on the parent tube, the convection current physical efficiency plays strong perturbation action, increases the turbulivity of fluid; But there is thermal contact resistance between pin wing on this kind enhanced heat transfer component and the parent tube, heat transfer is had a negative impact.The patent No. is that 00220040.6 patent application document provides a kind of " Needle fin tube heat exchanger "; The novel pin finned tube of wherein mentioning; Process through cut by light pipe; Eliminate the welding thermal contact resistance between pin wing and the parent tube, but when processing heat exchanger, had inconvenient installation, the unequal problem of assignment of traffic.
Summary of the invention
The purpose of the utility model is to provide that heat transfer coefficient is high, a kind of pin wing thimble tube enhanced heat transfer component of big, simple in structure, the no flow dead of heat transfer area in the unit volume.
The purpose of the utility model is achieved in that
A kind of pin wing of the utility model thimble tube enhanced heat transfer component; It is characterized in that: comprise binary channel joint, groove sleeve pipe, Needle fin tube; The binary channel joint comprises two, connects the two ends of Needle fin tube respectively; Needle fin tube has the inner passage, inserts the Needle fin tube inner passage with the coupling part of Needle fin tube on the binary channel joint, and the groove casing pipe sleeve is in the outside of Needle fin tube; Described binary channel joint comprises first passage and second channel, and first passage is communicated with the annular space of being made up of Needle fin tube and groove sleeve pipe, and second channel is communicated with the inner passage of Needle fin tube.
The utility model can also comprise:
1, the pin wing on the described Needle fin tube is intermittent type.
2, on the groove sleeve pipe groove is set, described groove location is corresponding with the needleless wing district of Needle fin tube.
3, the number of described groove is 8.
4, described groove sleeve pipe two ends are inclined plane shape, are enclosed within two binary channel joints outsides respectively.
The advantage of the utility model is:
1, heat transfer property is superior.The secondary extended surface of Needle fin tube has increased the heat transfer area in the pin wing thimble tube enhanced heat transfer component unit volume greatly, and its pin wing can effectively destroy the boundary layer of fluid, increases the turbulivity of fluid, improves the coefficient of heat transfer of pin wing side greatly; The groove sleeve pipe can flow fluid restricted in the annular space between itself and the Needle fin tube, internally outer fluid plays perturbation action, helps heat transfer intensification; Employing has the binary channel joint of special tectonic, can realize the two-sided heat exchange of annular space inner fluid between groove sleeve pipe and the Needle fin tube is improved the heat exchange effect greatly.
2, rational in infrastructure, no bypass leakage current.Annular space structure between groove sleeve pipe and the Needle fin tube is flowing of distribution media more reasonably; The flow range of limit fluid makes pin wing convection cell carry out sufficient disturbance, no bypass leakage current; Reduced heat transfer and flow dead greatly, made heat exchange more evenly effectively.
3, safe and reliable, long service life.Groove design cleverly on the groove sleeve pipe can be fixed its inner Needle fin tube, and anti-fluid causes the Needle fin tube vibration when flowing, and avoids Needle fin tube bump groove internal surface of sleeve pipe and causes the pin wing to damage.
4, when the manufacturing that is applied to heat exchanger, this pin wing thimble tube enhanced heat transfer component has the following advantages:
A. owing to adopted the binary channel joint of special tectonic; The diameter of pin wing thimble tube enhanced heat transfer component and tube sheet connecting place can change according to designing requirement; Realize when heat-transfer pipe is densely arranged the perforate spacing of tube sheet being met the demands, make the heat exchanger structure of processing heat transfer area compact, that unit volume is interior big;
B. this pin wing thimble tube enhanced heat transfer component can make a kind of fluid flow into the inner and groove jacket exterior of Needle fin tube simultaneously through the binary channel joint; Realization is to the two-sided heat exchange of annular space inner fluid between groove sleeve pipe and the Needle fin tube; Improved the heat exchange effect greatly, this compares when realizing identical function with other heat exchangers, has saved structure members such as flange adapter; Make the manufacturing of heat exchanger simpler with installation, economic benefit improves;
C. groove can add structures such as lacing wire or support bar in the outside of groove sleeve pipe; Realize the support and the location of pin wing thimble tube enhanced heat transfer component; The vibration that produces when making this enhanced heat transfer component be difficult for because of operation causes damaging, and prolongs the service life of heat exchanger;
D. easy for installation, the no projection in the pin wing thimble tube enhanced heat transfer component outside, each heat transfer element is installed without hindrance, is convenient to the integral installation of heat exchanger, and economic benefit is high, is highly suitable for production application.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A directional profile figure of Fig. 1;
Fig. 3 is the partial enlarged drawing that Fig. 2 I place binary channel joint is connected with Needle fin tube;
Fig. 4 is that the binary channel joint is connected sketch map with the groove sleeve pipe.
The specific embodiment
For example the utility model is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1~4, a kind of pin wing thimble tube enhanced heat transfer component is made up of Needle fin tube, binary channel joint and groove sleeve pipe.Needle fin tube is processed to intermittent type and is placed on outer tube inside, and two ends are connected with outer tube Needle fin tube by the binary channel joint, and after Needle fin tube, outer tube and the welding of binary channel joint, outer tube rolls out semi-circular recesses in the position of Needle fin tube needleless wing.
Described Needle fin tube is the intermittent type Needle fin tube, and pin wing direct cut on parent tube forms, contactless thermal resistance between pin wing and the parent tube, and its needleless wing zone position is corresponding with outer tube compacting groove location.
Described groove sleeve pipe original state is a smooth sleeve pipe; Its groove just is rolled after the miscellaneous part welded and installed is accomplished; Groove location is corresponding with Needle fin tube needleless wing zone position; Groove plays fixation to Needle fin tube, and realizes that fluid streams herein, and groove sleeve pipe two ends are inclined plane shape and weld with the side of binary channel joint respectively.
Described binary channel joint one end and the welding of Needle fin tube location; The inclined-plane welding of side and groove sleeve pipe; Binary channel joint inside forms two independently runners; Article one, runner is connected with annular space between groove sleeve pipe and the Needle fin tube, and another runner is connected with Needle fin tube inside and groove jacket exterior passage.
Described pin wing thimble tube enhanced heat transfer component; Owing to adopted the binary channel joint of special tectonic; Make the diameter at this enhanced heat transfer component two ends can adapt to different designing requirements, when making heat exchanger, can realize the densely arranged of heat-transfer pipe with this pin wing thimble tube enhanced heat transfer component; Increased the area of heat-transfer pipe in the heat exchanger unit volume greatly, solved heat exchanger because the problem of the compact conformation degree difference that the tubesheet intensity restriction produces.
Described pin wing thimble tube enhanced heat transfer component; When utilizing its manufacturing of carrying out heat exchanger; Make a kind of fluid flow into the inner and groove jacket exterior of Needle fin tube simultaneously through the binary channel joint, realize two-sided heat exchange annular space inner fluid between groove sleeve pipe and the Needle fin tube; In addition, groove can add supporting constructions such as lacing wire in the outside of groove sleeve pipe, prevents tube bundle vibration, prolongs the service life of heat exchanger.
In conjunction with Fig. 1 and Fig. 2; The composition of pin wing thimble tube enhanced heat transfer component comprises binary channel joint 1,3, groove sleeve pipe 2 and Needle fin tube 6; Needle fin tube 6 is processed to intermittent type; Its outside is surrounded by groove sleeve pipe 2, and the needleless wing district of Needle fin tube 6 is corresponding one by one with the groove 5 of groove sleeve pipe 2, and groove sleeve pipe 2 is connected through binary channel joint 1,3 with the two ends of Needle fin tube 6.Combine Fig. 3 and Fig. 4 simultaneously; The end that binary channel joint 1,3 is connected with Needle fin tube 6 can partly insert Needle fin tube 6 inside; Can realize the location welding between binary channel joint 1,3 and the Needle fin tube 6 like this, the axle center that guarantees to make binary channel joint 1,3 and Needle fin tube 6 after the welding is on same straight line.The side of binary channel joint 1,3 and the welding of groove sleeve pipe 2 angles; Welding back guarantees such effect: the passage 8,11 of binary channel joint 1,3, be inclusive in groove sleeve pipe 2 inside; Passage 4,10 will be exposed to the outside of groove sleeve pipe 2; So just make passage 8,11 communicate with annular space 7 between groove sleeve pipe 2 and the Needle fin tube 6, passage 4,10 communicates with Needle fin tube inner passage 9, and sealing (B represents at the place each weld among the figure) each other between the two passes.By this method, make this pin wing thimble tube enhanced heat transfer component have the effect of bilateral augmentation of heat transfer.Groove 5 on the groove sleeve pipe 2 is after each positioning parts welding, and is rolling on groove sleeve pipe 2, plays the effect of locking pin finned tube 6, can effectively prevent the collision between Needle fin tube 6 and the groove sleeve pipe 2, prolongs the service life of heat transfer element.When this pin wing thimble tube enhanced heat transfer component of application carries out the manufacturing of heat exchanger, in groove 5 outsides fixtures such as support bar can also be installed, can effectively reduce the vibration of heat exchanger tube.In addition, groove 5 can also play perturbation action to the fluid of both sides inside and outside it, fluid is produced herein stream, and helps heat exchange.
In conjunction with Fig. 2; Medium in the pin wing thimble tube enhanced heat transfer component is to flow like this: a kind of medium is got into by the passage 8 (11) of binary channel joint 1 (3); Annular space 7 through between groove sleeve pipe 2 and the Needle fin tube 6 flows through, and the passage 11 (8) by binary channel joint 3 (1) flows out again; Another kind of medium is got into by the path 10 (4) of binary channel joint 3 (1), through being flowed out by the passage 4 (10) of binary channel joint 1 (3) behind the Needle fin tube inner passage 9 again.Annular space 7 between groove sleeve pipe 2 and the Needle fin tube 6 is particularly suitable for the augmentation of heat transfer of lubricated wet goods high viscosity fluid, the viscous sublayer of destruction fluid that can be strong, and the turbulivity of increase fluid is eliminated and is flowed and the heat exchange dead band.When groove sleeve pipe 2 outsides have fluid to pass through, can carry out the bilateral heat exchange to the fluid in the annular space 7 with the fluid in the Needle fin tube inner passage 9, improve the heat transfer efficiency of pin wing thimble tube enhanced heat transfer component greatly.
The concrete installation implementation process of pin wing thimble tube enhanced heat transfer component is following: according to designing requirement processing binary channel joint 1,3, Needle fin tube 6 and smooth sleeve pipe; At first binary channel joint 1,3 and Needle fin tube 6 are positioned welding; The axle center of axle center and Needle fin tube 6 of guaranteeing binary channel joint 1,3 is on same straight line; Then according to the size of Needle fin tube 6, marked on smooth sleeve pipe, mark position is corresponding with the needleless wing zone position of Needle fin tube 6; Then put the assembly after binary channel joint 1,3 and Needle fin tube 6 welding into smooth inside pipe casing; Angle to binary channel joint 1,3 and smooth sleeve pipe welds, and guarantees after the welding that the passage 8,11 of binary channel joint 1,3 is contained by smooth sleeve pipe, and passage 4,10 is exposed to smooth jacket exterior.After the completion to be welded; At the rolling on request some grooves 5 of the mark of smooth jacket exterior; This moment, smooth sleeve pipe just became groove sleeve pipe 2; The position of groove 5 is corresponding with the needleless wing zone position of Needle fin tube 6, and inspection at last finally forms a kind of pin wing thimble tube enhanced heat transfer component after confirming that weld does not have leakage.

Claims (7)

1. pin wing thimble tube enhanced heat transfer component; It is characterized in that: comprise binary channel joint, groove sleeve pipe, Needle fin tube; The binary channel joint comprises two, connects the two ends of Needle fin tube respectively; Needle fin tube has the inner passage, inserts the Needle fin tube inner passage with the coupling part of Needle fin tube on the binary channel joint, and the groove casing pipe sleeve is in the outside of Needle fin tube; Described binary channel joint comprises first passage and second channel, and first passage is communicated with the annular space of being made up of Needle fin tube and groove sleeve pipe, and second channel is communicated with the inner passage of Needle fin tube.
2. a kind of pin wing thimble tube enhanced heat transfer component according to claim 1, it is characterized in that: the pin wing on the described Needle fin tube is intermittent type.
3. a kind of pin wing thimble tube enhanced heat transfer component according to claim 1 and 2 is characterized in that: on the groove sleeve pipe groove is set, described groove location is corresponding with the needleless wing district of Needle fin tube.
4. a kind of pin wing thimble tube enhanced heat transfer component according to claim 3, it is characterized in that: the number of described groove is 8.
5. a kind of pin wing thimble tube enhanced heat transfer component according to claim 1 and 2 is characterized in that: described groove sleeve pipe two ends are inclined plane shape, are enclosed within outside two binary channel joints respectively.
6. a kind of pin wing thimble tube enhanced heat transfer component according to claim 3 is characterized in that: described groove sleeve pipe two ends are inclined plane shape, are enclosed within outside two binary channel joints respectively.
7. a kind of pin wing thimble tube enhanced heat transfer component according to claim 4 is characterized in that: described groove sleeve pipe two ends are inclined plane shape, are enclosed within outside two binary channel joints respectively.
CN 201220195575 2012-05-03 2012-05-03 Needle wing sleeve type strengthening heat transfer element Expired - Fee Related CN202614040U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220195575 CN202614040U (en) 2012-05-03 2012-05-03 Needle wing sleeve type strengthening heat transfer element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220195575 CN202614040U (en) 2012-05-03 2012-05-03 Needle wing sleeve type strengthening heat transfer element

Publications (1)

Publication Number Publication Date
CN202614040U true CN202614040U (en) 2012-12-19

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Application Number Title Priority Date Filing Date
CN 201220195575 Expired - Fee Related CN202614040U (en) 2012-05-03 2012-05-03 Needle wing sleeve type strengthening heat transfer element

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106288908A (en) * 2016-08-30 2017-01-04 蔡蔚珍 Multi-purpose vehicle(MPV) radiator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106288908A (en) * 2016-08-30 2017-01-04 蔡蔚珍 Multi-purpose vehicle(MPV) radiator

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121219

Termination date: 20150503

EXPY Termination of patent right or utility model