CN203561271U - Tube bundle of floating head heat exchanger - Google Patents

Tube bundle of floating head heat exchanger Download PDF

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Publication number
CN203561271U
CN203561271U CN201320710170.XU CN201320710170U CN203561271U CN 203561271 U CN203561271 U CN 203561271U CN 201320710170 U CN201320710170 U CN 201320710170U CN 203561271 U CN203561271 U CN 203561271U
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CN
China
Prior art keywords
heat
floating
heat exchanger
deflection plate
heat transfer
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.)
Expired - Fee Related
Application number
CN201320710170.XU
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Chinese (zh)
Inventor
贺昶明
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.)
Chengdu Kesheng Petroleum Technology Co Ltd
Original Assignee
Chengdu Kesheng Petroleum Technology Co Ltd
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
Application filed by Chengdu Kesheng Petroleum Technology Co Ltd filed Critical Chengdu Kesheng Petroleum Technology Co Ltd
Priority to CN201320710170.XU priority Critical patent/CN203561271U/en
Application granted granted Critical
Publication of CN203561271U publication Critical patent/CN203561271U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a tube bundle of a floating head heat exchanger. The tube bundle comprises a plurality of heat transfer tubes, a fixed tube plate and a floating tube plate, wherein one end of each heat transfer tube is arranged on the fixed tube plate, and the other ends of the heat transfer tubes are connected with the floating tube plate; a backing ring and a butterfly cover are mounted on the floating tube plate and connected through a flange; and the tube bundle further comprises a plurality of arched upper baffle plates and lower baffle plates which are arranged on the plurality of heat transfer tubes at intervals, the central angle of each of the upper baffle plates and the lower baffle plates is 125 degrees, and the distance between adjacent upper and lower baffle plates is 0.12-0.6 m. The upper baffle plates and the lower baffle plates can play a role in supporting the heat transfer tubes and can divide the inside of the casing into a plurality of communicated heat exchange chambers, so that the flowing turbulence degree of fluids among the tubes is enhanced, the heat transfer coefficient is increased, and the heat transfer efficiency is improved.

Description

A kind of pipeline of floating-head heat exchanger bundle
Technical field
The utility model relates to a kind of heat exchanger, specifically refers to a kind of pipeline of floating-head heat exchanger bundle.
Background technology
Heat exchanger is that the part heat of hot fluid is passed to cold fluid, makes fluid temperature (F.T.) reach the exchange heat equipment of technological process set quota, claims again heat exchanger.Heat exchanger is widely used in boiler HVAC field as heat-transfer equipment, and along with the develop rapidly of power-saving technology, the kind of heat exchanger is more and more.Shell-and-tube (claiming again shell and tube) heat exchanger is that shell-and-tube heat exchanger mainly contains the part compositions such as housing, tube bank, tube sheet and end socket, and how rounded housing is, and bundle of parallel tubes or helix tube are equipped with in inside, and tube bank two ends are fixed on tube sheet.In shell-and-tube heat exchanger, carry out two kinds of fluids of heat exchange, a kind of mobile in pipe, its stroke is called tube side; A kind of mobile outside pipe, its stroke is called shell side, and the wall of tube bank is heat-transfer area; The model of pipe differs, and process is generally diameter 16mm 20mm or tri-models of 25mm, and pipe thickness is generally 1mm, 1.5mm, 2mm and 2.5mm.Inlet heat exchanger, diameter is minimum can arrive 8mm, wall thickness is only 0.6mm, has greatly improved heat exchange efficiency, this year also at home market promote and come gradually.Shell-and-tube heat exchanger, helical bundle design, can increase turbulence effects to greatest extent, strengthens heat exchange efficiency, the asymmetrical design of inner shell and pipe layer, maximum can reach 4.6 times; This asymmetrical design, determines its extensive use in vapour-water heat exchange field, and maximum heat exchange efficiency can reach 14000w/m2.k, greatly enhances productivity, cost-saving.
By the textural classification of heat exchanger, can be divided into: movable tube sheets heat exchanger, fixed tube-sheet exchanger, U-shaped tubular sheet heat exchanger, plate type heat exchanger etc.Because tube bank in fixed tube-sheet exchanger, U-shaped tubular sheet heat exchanger, plate type heat exchanger is connected with housing, make to restrain expanded by heating when heat exchange, when the temperature difference between two media is larger, between tube bank and housing, can produces thermal (temperature difference) stress, and then cause restraining impaired.
Utility model content
The purpose of this utility model is to provide a kind of pipeline of floating-head heat exchanger bundle, and the convenient heat exchange efficiency that improves when heat exchange is processed, extends the service life of tube bank.
The purpose of this utility model is achieved through the following technical solutions:
A kind of pipeline of floating-head heat exchanger bundle, comprise multiple heat-transfer pipes, fixed tube sheet and floating tubesheet, one end of heat-transfer pipe is arranged on fixed tube sheet, the other end of heat-transfer pipe is connected with floating tubesheet, hook circle and butterfly lid are installed on described floating tubesheet, hook circle is connected by flange with butterfly lid, also comprise multiple arc upper deflection plates and lower deflection plate, described upper deflection plate and lower deflection plate are disposed on multiple described heat-transfer pipes, the central angle of upper deflection plate and lower deflection plate is 125 °, and the spacing between described adjacent upper deflection plate and lower deflection plate is 0.12 ~ 0.6m.One end and the housing of in the utility model, restraining are fixed, and the tube sheet of the other end can be in the housing of heat exchanger free floating, housing and tube bank are freely to thermal expansion, therefore when the temperature difference of two media is larger, between tube bank and housing, can not produce thermal (temperature difference) stress, avoid the parts such as heat-transfer pipe impaired, butterfly lid is designed to removable structure, make tube bank easily insert or to extract out, improved maintenance and cleaning efficiency; Multiple arc upper deflection plates and lower deflection plate are set on heat-transfer pipe, and upper deflection plate and lower deflection plate interval are arranged on heat exchanger shell inside, deflection plate not only can play the effect of supporting heat-transfer pipe, enclosure interior can also be separated into the Heat Room of multiple connections, enhance fluid mobile turbulent extent between pipe, enhancing heat transfer, improve heat transfer efficiency, wherein the central angle of deflection plate is 125 °, spacing between two adjacent deflection plates is at 0.12 ~ 0.6m, make the turbulent extent of medium between pipe reach maximum horizontal, be conducive to improve heat exchange efficiency.
The be arranged as equilateral triangle of described heat-transfer pipe on floating tubesheet arranged.The heat-transfer pipe that equilateral triangle is arranged can make the outer medium flowing through of pipe flow through quickly and evenly tube bank, the temperature of avoiding heat-transfer pipe near import department to be subject to managing outer medium differs increase with the temperature of the interior medium of heat-transfer pipe, cause larger temperature stress poor, cause heat-transfer pipe impaired.
Sealing gasket is also installed between butterfly lid, hook circle and floating tubesheet.Butterfly lid and hook circle grip floating tubesheet by flange, guarantee the seal of tube bank when the sealing gasket of setting can make floating tubesheet fluctuate, and prevent from managing inside and outside medium and mutually mix, and affect heat exchange efficiency.
Described hook circle is Type B hook circle.Compared with A type hook circle, the studs of Type B hook circle is short, and hook circle is thin, the relative A type in floating head stagnant wake will lack, and when floating tubesheet is used, stability strengthens.
The thickness of described butterfly lid is 15 ~ 20 ㎝.Butterfly lid connects for point journey of heat-transfer pipe, thickness is arranged within the scope of 15 ~ 20 ㎝, can guarantee tube bank stable performance under using for a long time, when thickness is during lower than 15 ㎝, impact resistance and corrosion resistance for medium in heat-transfer pipe pipe reduce, and then cause reduce service life; When thickness exceedes 20 ㎝, the weight of whole tube bank is increased, once there is larger thermal (temperature difference) stress, floating tubesheet fluctuates slowly, does not offset the thermal (temperature difference) stress producing, and then causes heat-transfer pipe impaired.
On described floating tubesheet, also scribble polymer composite.The polymer composite scribbling not only makes heat-transfer pipe have stronger impact resistance and corrosion resistance, is also convenient to the quick cleaning dirt of heat-transfer pipe when safeguarding.
The utility model compared with prior art, has following advantage and beneficial effect:
1, a kind of pipeline of floating-head heat exchanger bundle of the utility model, comprise multiple heat-transfer pipes, fixed tube sheet and floating tubesheet, one end of heat-transfer pipe is arranged on fixed tube sheet, the other end of heat-transfer pipe is connected with floating tubesheet, hook circle and butterfly lid are installed on described floating tubesheet, hook circle is connected by flange with butterfly lid, also comprise multiple arc upper deflection plates and lower deflection plate, described upper deflection plate and lower deflection plate are disposed on multiple described heat-transfer pipes, the central angle of upper deflection plate and lower deflection plate is 125 °, spacing between described adjacent upper deflection plate and lower deflection plate is 0.12 ~ 0.6m, upper deflection plate and lower deflection plate not only can play the effect of supporting heat-transfer pipe, enclosure interior can also be separated into the Heat Room of multiple connections, enhance fluid mobile turbulent extent between pipe, enhancing heat transfer, improve heat transfer efficiency, wherein the central angle of deflection plate is 125 °, and the spacing between two adjacent deflection plates is at 0.12 ~ 0.6m, make the turbulent extent of medium between pipe reach maximum horizontal, be conducive to improve heat exchange efficiency,
2, a kind of pipeline of floating-head heat exchanger bundle of the utility model, butterfly lid and hook circle grip floating tubesheet by flange, when the sealing gasket arranging can make floating tubesheet fluctuate, guarantee the seal of tube bank, prevent from managing inside and outside medium and mutually mix, affect heat exchange efficiency;
3, a kind of pipeline of floating-head heat exchanger bundle of the utility model, the polymer composite scribbling not only makes heat-transfer pipe have stronger impact resistance and corrosion resistance, is also convenient to the quick cleaning dirt of heat-transfer pipe when safeguarding.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms the application's a part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is that the A of Fig. 1 is to cutaway view;
Mark and corresponding parts title in accompanying drawing:
Deflection plate under 1-heat-transfer pipe, 2-fixed tube sheet, 3-floating tubesheet, 4-hook circle, 5-butterfly lid, the upper deflection plate of 6-, 7-housing, 8-flange, 9-sealing gasket, 10-.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment
As depicted in figs. 1 and 2, a kind of pipeline of floating-head heat exchanger bundle of the utility model, comprise multiple heat-transfer pipes 1, fixed tube sheet 2 and floating tubesheet 3, one end of heat-transfer pipe 1 is arranged on fixed tube sheet 2, the other end of heat-transfer pipe 1 is connected with floating tubesheet 3, hook circle 4 and butterfly lid 5 are installed on described floating tubesheet 3, hook circle 4 is connected by flange 8 with butterfly lid 5, also comprise multiple arc upper deflection plates 6 and lower deflection plate 10, described upper deflection plate 6 and lower deflection plate 10 are disposed on multiple described heat-transfer pipes 1, the central angle of upper deflection plate 6 and lower deflection plate 10 is 125 °, spacing between described adjacent upper deflection plate 6 and lower deflection plate 10 is 0.12 ~ 0.6m, between butterfly lid 5 and floating tubesheet 3, sealing gasket 9 is also installed, the be arranged as equilateral triangle of described heat-transfer pipe 1 on floating tubesheet arranged.The one end of restraining in the utility model and housing 7 are fixing, and the tube sheet of the other end can be at the interior free floating of the housing of heat exchanger 7, housing 7 and tube bank are freely to thermal expansion, therefore when the temperature difference of two media is larger, between tube bank and housing 7, can not produce thermal (temperature difference) stress, avoid heat-transfer pipe 1 parts such as grade impaired, butterfly lid 5 is designed to removable structure, make heat-transfer pipe 1 easily insert or to extract out, improved maintenance and cleaning efficiency, the heat-transfer pipe 1 that equilateral triangle is arranged can make the outer medium flowing through of pipe flow through quickly and evenly tube bank, avoid heat-transfer pipe 1 near import department to be subject to managing the temperature of outer medium and the temperature of heat-transfer pipe 1 interior medium differs increase, cause larger temperature stress poor, cause heat-transfer pipe 1 impaired, multiple arc upper deflection plates 6 and lower deflection plate 10 are set on heat-transfer pipe 1, and upper deflection plate 6 and lower deflection plate 10 intervals are arranged on heat exchanger shell 7 inside, upper deflection plate 6 and lower deflection plate 10 not only can play the effect of supporting heat-transfer pipe 1, housing 7 interior separations can also be become to the Heat Room of multiple connections, enhance fluid mobile turbulent extent between pipe, enhancing heat transfer, improve heat transfer efficiency, the central angle of wherein going up deflection plate 6 and lower deflection plate 10 is 125 °, spacing between adjacent two upper deflection plates 6 and lower deflection plate 10 is at 0.12 ~ 0.6m, make the turbulent extent of medium between pipe reach maximum horizontal, be conducive to improve heat exchange efficiency, butterfly lid 5 grips floating tubesheet 3 by flange 8 with hook circle 4, guarantees the seal of tube bank when the sealing gasket 9 of setting can make floating tubesheet 3 fluctuate, and prevents from managing inside and outside medium and mutually mixes, and affects heat exchange efficiency.
Wherein, the thickness of butterfly lid 5 is 15 ~ 20 ㎝, butterfly lid 5 connects for point journey of heat-transfer pipe 1, thickness is arranged within the scope of 15 ~ 20 ㎝, can guarantee tube bank stable performance under using for a long time, when thickness is during lower than 15 ㎝, for the impact resistance of medium in heat-transfer pipe 1 pipe, reduce with corrosion resistance, and then cause reduction in service life; When thickness exceedes 20 ㎝, the weight of whole tube bank is increased, once there is larger thermal (temperature difference) stress, floating tubesheet 3 fluctuates slowly, does not offset the thermal (temperature difference) stress producing, and then causes heat-transfer pipe 1 impaired.
The above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present utility model; and be not used in limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (6)

1. a pipeline of floating-head heat exchanger bundle, comprise multiple heat-transfer pipes (1), fixed tube sheet (2) and floating tubesheet (3), one end of heat-transfer pipe (1) is arranged on fixed tube sheet (2), the other end of heat-transfer pipe (1) is connected with floating tubesheet (3), hook circle (4) and butterfly lid (5) are installed on described floating tubesheet (3), hook circle (4) is connected by flange (8) with butterfly lid (5), it is characterized in that: also comprise multiple arc upper deflection plates (6) and lower deflection plate (10), described upper deflection plate (6) and lower deflection plate (10) are disposed on multiple described heat-transfer pipes (1), the central angle of upper deflection plate (6) and lower deflection plate (10) is 125 °, spacing between described adjacent upper deflection plate (6) and lower deflection plate (10) is 0.12 ~ 0.6m.
2. a kind of pipeline of floating-head heat exchanger bundle according to claim 1, is characterized in that: the be arranged as equilateral triangle of described heat-transfer pipe (1) on floating tubesheet (3) arranged.
3. a kind of pipeline of floating-head heat exchanger bundle according to claim 1, is characterized in that: between butterfly lid (5) and floating tubesheet (3), sealing gasket (9) is also installed.
4. a kind of pipeline of floating-head heat exchanger bundle according to claim 1, is characterized in that: described hook circle (4) is Type B hook circle.
5. a kind of pipeline of floating-head heat exchanger bundle according to claim 3, is characterized in that: the thickness of described butterfly lid (5) is 15 ~ 20 ㎝.
6. a kind of pipeline of floating-head heat exchanger bundle according to claim 1, is characterized in that: on described floating tubesheet (3), also scribble polymer composite.
CN201320710170.XU 2013-11-12 2013-11-12 Tube bundle of floating head heat exchanger Expired - Fee Related CN203561271U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320710170.XU CN203561271U (en) 2013-11-12 2013-11-12 Tube bundle of floating head heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320710170.XU CN203561271U (en) 2013-11-12 2013-11-12 Tube bundle of floating head heat exchanger

Publications (1)

Publication Number Publication Date
CN203561271U true CN203561271U (en) 2014-04-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320710170.XU Expired - Fee Related CN203561271U (en) 2013-11-12 2013-11-12 Tube bundle of floating head heat exchanger

Country Status (1)

Country Link
CN (1) CN203561271U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103575155A (en) * 2013-11-12 2014-02-12 成都科盛石油科技有限公司 Tube bundle for heat exchangers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103575155A (en) * 2013-11-12 2014-02-12 成都科盛石油科技有限公司 Tube bundle for heat exchangers

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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: 20140423

Termination date: 20141112

EXPY Termination of patent right or utility model