CN204388661U - A kind of efficient fixed coil heat exchanger - Google Patents

A kind of efficient fixed coil heat exchanger Download PDF

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Publication number
CN204388661U
CN204388661U CN201420732875.6U CN201420732875U CN204388661U CN 204388661 U CN204388661 U CN 204388661U CN 201420732875 U CN201420732875 U CN 201420732875U CN 204388661 U CN204388661 U CN 204388661U
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CN
China
Prior art keywords
heat exchange
tube
housing
deflection plate
heat exchanger
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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
CN201420732875.6U
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Chinese (zh)
Inventor
李冬琼
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Chengdu Rui Qi Petrochemical Industry Project Ltd Co
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Chengdu Rui Qi Petrochemical Industry Project Ltd Co
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
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Priority to CN201420732875.6U priority Critical patent/CN204388661U/en
Application granted granted Critical
Publication of CN204388661U publication Critical patent/CN204388661U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of efficient fixed coil heat exchanger, comprise housing, bobbin carriage, tube sheet, set of heat exchange tubes, deflection plate and distance sink tube, bobbin carriage is symmetricly set on housing two ends, separated by tube sheet between bobbin carriage and housing, set of heat exchange tubes is provided with in housing, set of heat exchange tubes connects the tube sheet at two ends, symmetrically arranged bobbin carriage is communicated with, deflection plate is arranged on enclosure interior, fixed by the pull bar connecting tube sheet, distance sink tube is enclosed within to limit deflection plate on the pull bar between deflection plate, and it is characterized in that, set of heat exchange tubes is snakelike heat exchange tube group.The list bundle coiled pipe total length of set of heat exchange tubes and straight length than being 1.05:1 ~ 1.12:1, single tube diameter be in Ф 14, Ф 15 or Ф 16 any one.Tube sheet and housing join together.Improve heat exchange efficiency, reduce shell side resistance, reduce energy loss, and reduce deflection plate quantity, save cost.

Description

A kind of efficient fixed coil heat exchanger
Technical field
The utility model relates to oil gas field apparatus field, especially relevant with a kind of structure of efficient fixed coil heat exchanger.
Background technology
Shell-and-tube heat exchanger (shell and tube heat exchanger) is also known as tubular heat exchanger.It is the dividing wall type heat exchanger using closed wall of restraining in the housing as heat-transfer area.This heat exchanger structure is comparatively simple, and operation is reliable, and available various structural material (mainly metal material) manufactures, and can use under high temperature, high pressure, be type most widely used at present.
Shell-and-tube heat exchanger is made up of parts such as housing, heating surface bank, tube sheet, deflection plate (baffle plate) and bobbin carriages.Housing mostly is cylindrical shape, and tube bank is equipped with in inside, and tube bank two ends are fixed on tube sheet.Carry out cold and hot two kinds of fluids of heat exchange, a kind of at Bottomhole pressure, be called tube side fluid; Another kind of in the outer flowing of pipe, be called shell-side fluid.For improving the individual heat transfer coefficient of extratubal fluid, usually some baffle plates are installed in housing.Baffle plate can improve shell-side fluid speed, forces fluid by regulation distance repeatedly laterally across tube bank, enhance fluid turbulent extent.
Existing fixed tube-sheet exchanger, need to adopt more deflection plate, to strengthen housing inner fluid turbulent extent, cost is higher, and effect is undesirable, needs to be improved.It is simple that the present invention designs a kind of structure, and efficient fixed coil heat exchanger easy to implement, not only increases heat exchange efficiency, and can reduce shell side resistance, reduces energy loss, greatly reduce deflection plate quantity simultaneously, saves cost.
Utility model content
The utility model provides a kind of efficient fixed coil heat exchanger, to solve above-mentioned the deficiencies in the prior art, improves heat exchange efficiency, reduces shell side resistance, reduce energy loss, and reduce deflection plate quantity, save cost.
In order to realize the purpose of this utility model, intend adopting following technology:
A kind of efficient fixed coil heat exchanger, comprise housing (1), bobbin carriage (2), tube sheet (3), set of heat exchange tubes (4), deflection plate (5) and distance sink tube (6), described bobbin carriage (2) is symmetricly set on housing (1) two ends, separated by tube sheet (3) between bobbin carriage (2) and housing (1), set of heat exchange tubes (4) is provided with in described housing (1), set of heat exchange tubes (4) connects the tube sheet (3) at two ends, symmetrically arranged bobbin carriage (2) is communicated with, it is inner that described deflection plate (5) is arranged on housing (1), fixed by the pull bar connecting tube sheet (3), described distance sink tube (6) is enclosed within the pull bar between deflection plate (5) to limit deflection plate (5), it is characterized in that, described set of heat exchange tubes (4) is snakelike heat exchange tube group.
Further, the list bundle coiled pipe total length of described set of heat exchange tubes (4) is 1.05:1 ~ 1.12:1 with straight length ratio.
Further, the single tube diameter of described set of heat exchange tubes (4) be in Ф 14, Ф 15 or Ф 16 any one.
Further, described deflection plate (5) is arc for what bend.
Further, quantity >=2 of described deflection plate (5).
Further, described tube sheet (3) and housing (1) join together.
Further, described symmetrically arranged bobbin carriage (2) is respectively equipped with cold fluid import and cold fluid outlet.Described housing (1) is provided with hot fluid import and hot fluid outlet ports.
The beneficial effects of the utility model are:
1, set of heat exchange tubes is designed to snakelike heat exchange tube group, has flexibility, single bundle coiled pipe total length and straight length are than being 1.05:1 ~ 1.12:1, and can overcome two fluid temperature differences reaches 180 ~ 400 DEG C, has stronger thermal stress compensation; Single tube diameter be in Ф 14, Ф 15 or Ф 16 any one, the push-pull effort caused due to the temperature difference is 6 ~ 37N, and this push-pull effort can be ignored within the scope of tube sheet holding capacity;
2, strengthen flow velocity, enhance fluid less turbulence, compares existing fixed tube-sheet exchanger, and heat transfer area is suitable, but single tube length increases, and increases tube side fluid flow velocity, strengthens tube side fluid turbulent degree; Due to the irregularity degree of tube bank, the fluid of shell side can form turbulent flow by spontaneous induction in this region, and strengthen shell-side fluid less turbulence, tube side and shell-side fluid less turbulence strengthen, thus increase overall heat-transfer coefficient, improve heat exchange efficiency;
3, coiled pipe is due to himself irregularity degree, can produce intrinsic vibration dynamics when tube side fluid turbulent flow to it, effectively automatically can remove the dirt on tube bank inside and outside wall, effectively reduce heat resistance of the scale, can increase overall heat-transfer coefficient, improve heat exchange efficiency;
4, existing fixed tube-sheet exchanger, deflection plate quantity is many, the mode utilizing deflection plate to stop by force induces shell-side fluid to flow to, and force out turbulent flow, the fluid impedance losses of its shell side is large, and snakelike tube bank is due to the irregularity degree of tube bank, and the fluid of shell side can form turbulent flow by spontaneous induction in this region, efficient fixed coil heat exchanger can reduce shell-side fluid resistance, has energy-conserving action;
5, deflection plate is arc, can reduce resistance further, and improve heat transfer efficiency;
Greatly reduce deflection plate usage quantity simultaneously, provide cost savings;
6, structure is simple, easy to implement, can be widely used in the fields such as thermoelectricity, factories and miness, petrochemical industry, concentrated supply of heating in the city, food medicine, energy electronic, mechanical light industry.
Accompanying drawing explanation
Fig. 1 shows structural representation one of the present utility model.
Detailed description of the invention
As shown in Figure 1, a kind of efficient fixed coil heat exchanger, comprise housing (1), bobbin carriage (2), tube sheet (3), set of heat exchange tubes (4), deflection plate (5) and distance sink tube (6), described bobbin carriage (2) is symmetricly set on housing (1) two ends, separated by tube sheet (3) between bobbin carriage (2) and housing (1), set of heat exchange tubes (4) is provided with in described housing (1), set of heat exchange tubes (4) connects the tube sheet (3) at two ends, symmetrically arranged bobbin carriage (2) is communicated with, it is inner that described deflection plate (5) is arranged on housing (1), fixed by the pull bar connecting tube sheet (3), described distance sink tube (6) is enclosed within the pull bar between deflection plate (5) to limit deflection plate (5).
Described set of heat exchange tubes (4) is snakelike heat exchange tube group.The list bundle coiled pipe total length of described set of heat exchange tubes (4) is with straight length than being 1.05:1 ~ 1.12:1, and can overcome two fluid temperature differences reaches 180 ~ 400 DEG C, has stronger thermal stress compensation.The single tube diameter of described set of heat exchange tubes (4) be in Ф 14, Ф 15 or Ф 16 any one, the push-pull effort caused due to the temperature difference is 6 ~ 37N, and this push-pull effort can be ignored within the scope of tube sheet holding capacity.
Described deflection plate (5) is arc for what bend.Quantity >=2 of described deflection plate (5).
Described tube sheet (3) and housing (1) join together.Described symmetrically arranged bobbin carriage (2) is respectively equipped with cold fluid import and cold fluid outlet.Described housing (1) is provided with hot fluid import and hot fluid outlet ports.
Symmetrically arranged bobbin carriage (2) and set of heat exchange tubes (4) form the cold fluid flowing space, and tube sheet (3) and housing (1) form the hot fluid flowing space.Cold fluid enters heat exchanger from the cold fluid import bobbin carriage (2), by snakelike heat exchange tube group (4), enters the bobbin carriage (2) of opposite side, then discharges from cold fluid outlet; Hot fluid enters heat exchanger from the hot fluid import housing (1), flows in housing (1), is flowed to, finally discharge from hot fluid outlet ports by deflection plate induction.The cold fluid of the hot fluid in housing (1) and snakelike heat exchange tube group (4) carries out heat exchange.
Efficient fixed coil heat exchanger of the present utility model, compared with movable tube sheets heat exchanger and fixed tube-sheet exchanger, shown in its comparative effectiveness sees the following form:
By comparing, efficient fixed coil heat exchanger on year-on-year basis same category of device has the following advantages: compact conformation, and floor space is little, lightweight, easy for installation, saves construction investment; Flexible design, complete in specifications, practical with strong points, economize on the use of funds; Application conditions is extensive, is suitable for larger pressure, temperature range and medium heat exchange; Maintenance cost is low, easy to operate, and the snaking cycle is long, easy to clean; Application is wide, can be widely used in the fields such as thermoelectricity, factories and miness, petrochemical industry, concentrated supply of heating in the city, food, medicine, energy electronic, mechanical light industry.

Claims (8)

1. an efficient fixed coil heat exchanger, comprise housing (1), bobbin carriage (2), tube sheet (3), set of heat exchange tubes (4), deflection plate (5) and distance sink tube (6), described bobbin carriage (2) is symmetricly set on housing (1) two ends, separated by tube sheet (3) between bobbin carriage (2) and housing (1), set of heat exchange tubes (4) is provided with in described housing (1), set of heat exchange tubes (4) connects the tube sheet (3) at two ends, symmetrically arranged bobbin carriage (2) is communicated with, it is inner that described deflection plate (5) is arranged on housing (1), fixed by the pull bar connecting tube sheet (3), described distance sink tube (6) is enclosed within the pull bar between deflection plate (5) to limit deflection plate (5), it is characterized in that, described set of heat exchange tubes (4) is snakelike heat exchange tube group.
2. efficient fixed coil heat exchanger according to claim 1, is characterized in that, the list bundle coiled pipe total length of described set of heat exchange tubes (4) is 1.05:1 ~ 1.12:1 with straight length ratio.
3. efficient fixed coil heat exchanger according to claim 1, is characterized in that, the single tube diameter of described set of heat exchange tubes (4) be in Ф 14, Ф 15 or Ф 16 any one.
4. according to the efficient fixed coil heat exchanger in claim 1 ~ 3 described in any one, it is characterized in that, described deflection plate (5) is arc for what bend.
5. according to the efficient fixed coil heat exchanger in claim 1 ~ 3 described in any one, it is characterized in that, quantity >=2 of described deflection plate (5).
6. efficient fixed coil heat exchanger according to claim 1, is characterized in that, described tube sheet (3) and housing (1) join together.
7. efficient fixed coil heat exchanger according to claim 1, is characterized in that, described symmetrically arranged bobbin carriage (2) is respectively equipped with cold fluid import and cold fluid outlet.
8. efficient fixed coil heat exchanger according to claim 1, is characterized in that, described housing (1) is provided with hot fluid import and hot fluid outlet ports.
CN201420732875.6U 2014-12-01 2014-12-01 A kind of efficient fixed coil heat exchanger Expired - Fee Related CN204388661U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420732875.6U CN204388661U (en) 2014-12-01 2014-12-01 A kind of efficient fixed coil heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420732875.6U CN204388661U (en) 2014-12-01 2014-12-01 A kind of efficient fixed coil heat exchanger

Publications (1)

Publication Number Publication Date
CN204388661U true CN204388661U (en) 2015-06-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105371537A (en) * 2015-12-21 2016-03-02 常熟市久昇电器有限公司 Plate and tube type refrigerator efficient condenser
CN105910467A (en) * 2016-05-13 2016-08-31 中国海洋石油总公司 Horizontal tube and shell heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105371537A (en) * 2015-12-21 2016-03-02 常熟市久昇电器有限公司 Plate and tube type refrigerator efficient condenser
CN105910467A (en) * 2016-05-13 2016-08-31 中国海洋石油总公司 Horizontal tube and shell heat exchanger

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

Granted publication date: 20150610

Termination date: 20161201