CN103175418B - Shell-and-tube heat exchanger - Google Patents
Shell-and-tube heat exchanger Download PDFInfo
- Publication number
- CN103175418B CN103175418B CN201310081827.5A CN201310081827A CN103175418B CN 103175418 B CN103175418 B CN 103175418B CN 201310081827 A CN201310081827 A CN 201310081827A CN 103175418 B CN103175418 B CN 103175418B
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- Prior art keywords
- tube
- shell
- heat exchanger
- perforated plate
- cavity
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- 238000007789 sealing Methods 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 14
- 238000005476 soldering Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000411 inducer Substances 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a shell-and-tube heat exchanger, which comprises a tube plate, a shell positioned at the periphery of the tube plate, heat exchange tubes distributed in the shell and connected with the tube plate, an end cover and a flange, wherein the tube plate comprises an upper tube plate and a lower tube plate; the shell-and-tube heat exchanger has compact structure and simple process.
Description
Technical field
The present invention relates to technical field of heat exchangers, relate in particular to a kind of shell-and-tube heat exchanger.
Background technology
Shell-and-tube heat exchanger is still the main Types heat exchanger using in chemical industry, oil and petrochemical industry at present, especially in high temperature, high pressure and large-scale heat transmission equipment, still has overwhelming superiority.The shell-and-tube heat exchanger adopting at present often with by heat exchanging piece equal diameter, and be directly connected with equipment barrel, this just requires the size of cylindrical shell very large, cause described heat exchanger structure complicated, production and processing cost is expensive, on the other hand, traditional shell-and-tube heat exchanger exists heat exchange area little, the shortcomings such as heat exchange efficiency is low, in order to improve heat exchange efficiency, a lot of heat exchangers take the mode that increases volume to increase heat exchange area, this must cause heat transmission equipment volume flat huge, occupation of land is many, the metal wastage of the unit heat transfer interview bringing is thus also quite surprising, above-mentioned drawbacks limit its application in all kinds of therrmodynamic systems, therefore, for modern industry better develops, a kind of compact heat exchanger is badly in need of in heat exchange field.
Summary of the invention
The present invention is for solving the problems of the technologies described above, a kind of compact conformation is provided, the shell-and-tube heat exchanger that heat exchange efficiency is high, it comprises tube sheet, be positioned at the housing of tube sheet periphery, be distributed in the heat exchanger tube that connects described tube sheet in housing, end cap and flange, described tube sheet comprises upper perforated plate and lower perforated plate, described housing comprises cylindrical shell, the thermometric joint chair affixed with upper perforated plate, the central tube that connects described cylindrical shell and described upper perforated plate, the tube side joint that is positioned at the shell side joint of cylindrical shell one end and is positioned at the cylindrical shell other end, described upper perforated plate is connected with described end cap and forms the first cavity, described lower perforated plate is connected with described flange and forms the second cavity.
Preferably, described heat exchanger tube is helical form light pipe or helical form finned tube.
Preferably, described upper perforated plate respectively with described central tube and described barrel soldering.
Preferably, described upper perforated plate adopts screw to be connected with described end cap.
Preferably, described upper perforated plate and described end cap adopt the sealing of O type circle or sealing gasket sealing.
Preferably, described tube side joint respectively with described end cap and described flange welding.
Preferably, described heat exchanger tube is copper pipe.
Preferably, described lower perforated plate respectively with described central tube and described barrel soldering.
Preferably, described lower perforated plate adopts screw to be connected with described flange.
Preferably, described lower perforated plate and described flange adopt the sealing of O type circle or sealing gasket sealing.
Shell-and-tube heat exchanger of the present invention, shell side medium forms closed cycle in heat exchanger, reduces the contaminated possibility of shell side medium; Described upper perforated plate and described central tube and described cylindrical shell weld respectively, and described tube side joint and described end cap and described flange weld respectively, compact conformation, and technique is simple, can be with fine integrated by heat exchanging piece, less taking up room.
Accompanying drawing explanation
Fig. 1 is shell heat exchanger one embodiment schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail.
As shown in Figure 1, for shell heat exchanger one embodiment schematic diagram of the present invention, shell-and-tube heat exchanger of the present invention, it comprises tube sheet (not indicating), be positioned at the housing (not indicating) of tube sheet periphery, be distributed in the heat exchanger tube 10 that connects described tube sheet in housing, end cap 6 and flange 1, described tube sheet comprises upper perforated plate 5 and lower perforated plate 2, described housing comprises cylindrical shell 3, the thermometric joint chair 7 affixed with upper perforated plate 5, the central tube 4 that connects described cylindrical shell 3 and described upper perforated plate 5, the tube side joint 9 that is positioned at the shell side joint 8 of cylindrical shell 3 one end and is positioned at cylindrical shell 3 other ends, described upper perforated plate 5 is connected with described end cap 6 and forms the first cavity (not shown), described lower perforated plate 2 is connected with described flange 1 and forms the second cavity (not shown).
Flange 1 with by heat exchanging piece, be connected, size between Φ 10mm～Φ 10000mm, flange 1 with by heat exchanging piece, be connected by screw, replacing maintenance for convenience detach.
Upper perforated plate 5 adopts and is welded to connect respectively and between central tube 4 and cylindrical shell 3, between described end cap 6 and described upper perforated plate 5, adopts screw to be connected, and sealing adopts O type circle or sealing gasket pattern.
Lower perforated plate 2 is welded to connect with cylindrical shell 3 and central tube 4 respectively; Described lower perforated plate 2 adopts screw to be connected with flange 1, adopts O type circle or sealing gasket sealing between the two.
Upper perforated plate 5 is connected with end cap 6 and forms the first cavity, and tube side medium enters the first cavity by tube side joint 9, and medium enters heat exchanger tube 10 after all pressing in the first cavity and carries out heat exchange with shell side medium.
Lower perforated plate 2 is connected with flange 1 and forms the second cavity, and medium is taken over and entered the second cavity by tube side, after all pressing, evenly enters tube side and shell side media for heat exchange in the second cavity.
On lower perforated plate 2 inner sides and flange 1, through hole is shell side medium intake channel, and inducer flow area is adjusted according to central tube 4 sectional areas, guarantees that shell side medium runner is unimpeded.
Central tube 4 upper end perforates, perforated area is identical with the interior sectional area of central tube 4, guarantees that medium runner is unimpeded.Central tube 4 upper end perforate patterns can be the multiple patterns such as circular hole, the one word hole.
Thermometric joint chair 7 is welded to connect with upper perforated plate 5, and the interior installation temperature element of thermometric joint chair 7, for monitoring temperature after shell side media for heat exchange.
Tube side joint 9 is welded to connect with adpting flange 1 with end cap 6 and tube side joint 9.Shell side joint 8 and cylindrical shell 3 welding, when pressure medium is too high or too low in shell side, is discharged or supplemented by medium in shell side joint 8 shell sides.
Heat exchanger tube 10 radicals and length are calculated acquisition by heating power.Heat exchanger tube 10 must guarantee that each root length is identical, obtains identical tube side pipe resistance, so that tube side medium is evenly distributed in tube side.
Heat exchanger tube 10 can, according to heat exchanger structure size characteristic, be arranged to 1 layer to 50 layers coil pipe pattern.After heat exchanger tube 10 has been arranged, if there is remaining space in shell side space, adopt coil pipe, two ends block, and make false heat exchanger tube, fill up tube side space, guarantee area and the length of shell side medium channel, prevent medium " short circuit " in tube side, affect heat transfer effect.
Heat exchanger tube 10 adopts copper pipe, and copper pipe can be helical form light pipe or helical form finned tube.Heat exchanger miscellaneous part adopts stainless steel or other steel grades.
Whole weld seam that has different mother metals of heat exchanger, weld seam welding fusing point differs greatly, and needs to adopt different welding means and reasonable layout welding sequence, and the mother metal weld seam that fusing point is high welds in advance, finally welds low-melting weld seam.
Upper perforated plate 5 welds in advance with central tube 4, and insert in upper perforated plate 5 welding holes heat exchanger tube 10 one end, makes heat exchanger tube 10, and lower perforated plate 2 proceeds in central tube 4 and heat exchanger tube 10, fixes the relative position of heat exchanger tube 10 and upper perforated plate 5 lower perforated plates 2, but does not weld.
Cylindrical shell 3 is installed and is put in place, the weld seam between welding cylindrical shell 3 and upper perforated plate 5, cylindrical shell 3 and lower perforated plate 2, central tube 4 and lower perforated plate 2, wherein the spot welds solid welding between central tube 4 and lower perforated plate 2 is fixed, and other weld seams are continuous welding.
Heat exchanger tube 10 and upper perforated plate 5, heat exchanger tube 10 adopts gas brazing with lower perforated plate 2, and welding wire adopts silver wire.Heat exchanger tube 10 and front strict cleaning of upper perforated plate 5 lower perforated plate 2 welding position weldering, wipe oil and oxide skin.Heat exchanger tube 10 guarantees within 0.001mm～1mm with upper perforated plate 5 and lower perforated plate 2 mating holes gaps.
During heat exchanger tube 10 welding, adopt wielding neck order, reduce between weld seam and influence each other, improve welding quality.
The invention provides a kind of compact conformation, the shell-and-tube heat exchanger of heat transfer efficient and the manufacture craft of heat exchanger: the contactless air stream drives of novel high speed, dynamic balancing that can rotating band vane rotor detects drive unit; Compact conformation of the present invention, heat transfer efficient, can, with fine integrated by heat exchanging piece, reduce the occupation of land vacant lot of overall apparatus; The present invention with integrated by heat exchanging piece after, shell side medium forms closed cycle in heat exchanger, reduces the contaminated possibility of shell side medium; The mechanism form of this device, can be similar compact heat exchanger reference is provided.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change and distortion all should belong to the protection domain of the claims in the present invention.
Claims (9)
1. a shell-and-tube heat exchanger, it is characterized in that: it comprises tube sheet, be positioned at the housing of tube sheet periphery, be distributed in the heat exchanger tube that connects described tube sheet in housing, end cap and flange, described tube sheet comprises upper perforated plate and lower perforated plate, described housing comprises cylindrical shell, the thermometric joint chair affixed with upper perforated plate, the central tube that connects described cylindrical shell and described upper perforated plate, the tube side joint that is positioned at the shell side joint of cylindrical shell one end and is positioned at the cylindrical shell other end, described upper perforated plate is connected with described end cap and forms the first cavity, described lower perforated plate is connected with described flange and forms the second cavity, described tube side joint respectively with described end cap and described flange welding, tube side medium enters described the first cavity or described the second cavity by tube side joint, and after all pressing, enters described heat exchanger tube and described shell side medium carries out heat exchange in described the first cavity or described the second cavity, on described lower perforated plate inner side and described flange, through hole is shell side medium intake channel, and described inducer flow area is adjusted according to central tube sectional area, described shell side joint and described barrel soldering, when pressure medium is too high or too low in shell side, discharges medium in shell side by described shell side joint or supplement.
2. shell-and-tube heat exchanger according to claim 1, is characterized in that: described heat exchanger tube is helical form light pipe or helical form finned tube.
3. shell-and-tube heat exchanger according to claim 1, is characterized in that: described upper perforated plate respectively with described central tube and described barrel soldering.
4. shell-and-tube heat exchanger according to claim 1, is characterized in that: described upper perforated plate adopts screw to be connected with described end cap.
5. shell-and-tube heat exchanger according to claim 4, is characterized in that: described upper perforated plate and described end cap adopt the sealing of O type circle or sealing gasket sealing.
6. shell-and-tube heat exchanger according to claim 1, is characterized in that: described heat exchanger tube is copper pipe.
7. shell-and-tube heat exchanger according to claim 1, is characterized in that: described lower perforated plate respectively with described central tube and described barrel soldering.
8. shell-and-tube heat exchanger according to claim 1, is characterized in that: described lower perforated plate adopts screw to be connected with described flange.
9. shell-and-tube heat exchanger according to claim 8, is characterized in that: described lower perforated plate and described flange adopt the sealing of O type circle or sealing gasket sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310081827.5A CN103175418B (en) | 2013-03-14 | 2013-03-14 | Shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310081827.5A CN103175418B (en) | 2013-03-14 | 2013-03-14 | Shell-and-tube heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103175418A CN103175418A (en) | 2013-06-26 |
| CN103175418B true CN103175418B (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310081827.5A Active CN103175418B (en) | 2013-03-14 | 2013-03-14 | Shell-and-tube heat exchanger |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743270B (en) * | 2013-12-20 | 2015-10-14 | 衢州昀睿工业设计有限公司 | The heat exchanger that many groups helix tube is nested |
| CN104567480A (en) * | 2014-12-26 | 2015-04-29 | 牛玉振 | Large ultrahigh-pressure wound tube heat exchanger |
| CN108627025B (en) * | 2018-05-28 | 2023-11-21 | 张化机（苏州）重装有限公司 | Inlet pipe structure of condensate water tank |
| CN113587702B (en) * | 2021-07-19 | 2023-10-13 | 江苏格安德环保工程科技有限公司 | Controllable heat transfer device with easy maintenance formula |
| CN113996964B (en) * | 2021-12-30 | 2022-03-18 | 常州新海飞金属制品有限公司 | Tube plate welding method, tube body and tube plate connecting method and heat exchanger |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050511A (en) * | 1975-03-03 | 1977-09-27 | The Babcock & Wilcox Company | Heat exchangers |
| CN2110203U (en) * | 1991-11-28 | 1992-07-15 | 能源部西安热工研究所 | Spiral baffle type radiator |
| CN2625833Y (en) * | 2003-05-13 | 2004-07-14 | 华南理工大学 | Spiral baffle pore plate supported rhombic finned tube bundle heat exchanger |
| CN2643261Y (en) * | 2003-08-23 | 2004-09-22 | 山东贝尔新能源有限公司 | Hollow tube and shell type heat exchanger |
| CN203132397U (en) * | 2013-03-14 | 2013-08-14 | 中国科学院理化技术研究所 | Shell-and-tube heat exchanger |
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- 2013-03-14 CN CN201310081827.5A patent/CN103175418B/en active Active
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| CN103175418A (en) | 2013-06-26 |
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Effective date of registration: 20190305 Address after: 100094 Beijing Haidian District Fenghui Middle Road No. 7 New Material Pioneering Building 2 Floor 202 Patentee after: ZHONGKE RUIAO ENERGY TECHNOLOGY CO.,LTD. Address before: No. 29 East Zhongguancun Road, Haidian District, Beijing 100190 Patentee before: Technical Institute of Physics and Chemistry Chinese Academy of Sciences |
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