CN204268951U - The sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle - Google Patents
The sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle Download PDFInfo
- Publication number
- CN204268951U CN204268951U CN201420614667.6U CN201420614667U CN204268951U CN 204268951 U CN204268951 U CN 204268951U CN 201420614667 U CN201420614667 U CN 201420614667U CN 204268951 U CN204268951 U CN 204268951U
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- CN
- China
- Prior art keywords
- longitudinal baffle
- shell
- heat exchanger
- seal bar
- soft seal
- 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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle, it comprises soft seal bar, press strip and fixing securing member, soft seal bar is sandwiched between longitudinal baffle and press strip, the outer end that the outer side edges of soft seal bar exceeds longitudinal baffle contacts with heat exchanger cylindrical shell, and securing member is connected between longitudinal baffle and press strip.Produce initial pressure during the assembling of soft seal bar, form initial sealing, when fluid is by heat exchanger shell pass, can be poor at longitudinal baffle both sides mineralization pressure, increase sealing strip to the thrust of cylindrical shell, strengthen sealing effectiveness.Owing to adopting soft material sealing, so reduce the probability producing permanent gap, the required precision made also is decreased.
Description
Technical field
The utility model relates to a kind of sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle, belongs to chemical machinery field.
Background technology
At present, the hermetically-sealed construction between double-shell side shell-and-tube heat exchanger shell side generally adopts two kinds of forms: a kind of is the heat exchanger needing to extract out tube bank, adopts pressure strip, stainless steel spring sheet, the mode that securing member compresses; Another kind is fixed tube-sheet exchanger, adopts dividing plate directly and barrel soldering or insert in the mode of gathering sill.Stainless steel gasket, gathering sill mode, its bi-material forming sealing contact surface is all high hardness material, therefore higher to the required precision made, and easily forms permanent gap, and the probability of shell-side fluid short circuit increases; Welding manner and gathering sill mode, all need manually to operate in cylindrical shell in manufacturing process, the heat exchanger little to diameter is also inapplicable, has certain limitation.
Summary of the invention
The purpose of this utility model is to provide a kind of sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle, overcomes the deficiencies in the prior art, reduces and makes precision, do not need manually to operate in cylindrical shell, improves sealing property.
The purpose of this utility model realizes as follows: it comprises soft seal bar, press strip and fixing securing member, soft seal bar is sandwiched between longitudinal baffle and press strip, the outer end that the outer side edges of soft seal bar exceeds longitudinal baffle contacts with heat exchanger cylindrical shell, and securing member is connected between longitudinal baffle and press strip.The material requirements somewhat resilient of soft seal bar, conventional material has polyfluortetraethylene plate, rubber slab etc., during assembling, sealing strip produces elastic deformation, and form initial thrust between cylindrical shell, form initial sealing, when have fluid by time, certain pressure differential can be formed in longitudinal baffle both sides, thus the thrust increased between soft seal bar and cylindrical shell, enhance sealing effectiveness.Owing to adopting soft material, so also decrease the required precision made, the probability forming permanent gap between soft seal bar and cylindrical shell reduces.
Securing member is made up of bolt, plain washer, spring washer, nut, and the threaded rod of bolt is through behind the hole on longitudinal baffle, soft seal bar, press strip, and threaded rod top screws in nut after putting plain washer, spring washer and fixes.
The beneficial effect that the utility model has: (1) soft seal bar, under the effect of longitudinal baffle pressure at both sides difference, strengthens the thrust with cylindrical shell automatically, makes it contact tightr, thus stops heat exchanger shell pass fluid to produce short circuit, enhances heat transfer effect.(2) owing to adopting soft material sealing, lower than the requirement on machining accuracy of traditional longitudinal baffle seal form, equipment making is simpler and easy, decreases production cost.(3) do not need to carry out any operation among manufacturing process in heat exchanger cylindrical shell, thus not by the restriction of barrel diameter, be applicable to the heat exchanger of various sizes specification.(4) owing to adopting soft sealing structure, the probability that sealing strip and cylindrical shell form permanent gap reduces, and sealing effectiveness is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
With reference to Fig. 1, the utility model comprises soft seal bar 2, press strip 7 and fixing securing member, soft seal bar 2 is sandwiched between longitudinal baffle 8 and press strip 7, the cylindrical shell 1 of outer end and heat exchanger that the outer side edges of soft seal bar 2 exceeds longitudinal baffle 8 contacts, and securing member is connected between longitudinal baffle 8 and press strip 7.Securing member is made up of bolt 4, plain washer 3, spring washer 6, nut 5, and the threaded rod of bolt 4 is through behind the hole on longitudinal baffle 8, soft seal bar 2, press strip 7, and threaded rod top screws in nut 5 and fixes after putting plain washer 3, spring washer 6.The material of soft seal bar 2 is selected according to fluid properties, the width dimensions of soft seal bar 2 determines according to elastic properties of materials, during assembling, the bending direction of soft seal bar 2 must towards fluid inlet side, the pressure differential that such longitudinal baffle 8 both sides produce just can increase the pressure between soft seal bar 2 and cylindrical shell 1, strengthens sealing effectiveness.
Claims (2)
1. the sealing device of a double-shell side shell-and-tube heat exchanger longitudinal baffle, it is characterized in that: it comprises soft seal bar (2), press strip (7) and fixing securing member, soft seal bar (2) is sandwiched between longitudinal baffle (8) and press strip (7), the cylindrical shell (1) of outer end and heat exchanger that the outer side edges of soft seal bar (2) exceeds longitudinal baffle (8) contacts, and securing member is connected between longitudinal baffle (8) and press strip (7).
2. the sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle according to claim 1, it is characterized in that: securing member is made up of bolt (4), plain washer (3), spring washer (6), nut (5), the threaded rod of bolt (4) is through behind the hole on longitudinal baffle (8), soft seal bar (2), press strip (7), and threaded rod top puts plain washer (3), spring washer (6) screws in nut (5) afterwards and fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614667.6U CN204268951U (en) | 2014-10-23 | 2014-10-23 | The sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614667.6U CN204268951U (en) | 2014-10-23 | 2014-10-23 | The sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204268951U true CN204268951U (en) | 2015-04-15 |
Family
ID=52803813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614667.6U Expired - Fee Related CN204268951U (en) | 2014-10-23 | 2014-10-23 | The sealing device of double-shell side shell-and-tube heat exchanger longitudinal baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204268951U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879959A (en) * | 2015-06-24 | 2015-09-02 | 台州龙江化工机械科技有限公司 | Dry-type evaporator |
| CN108225061A (en) * | 2018-01-09 | 2018-06-29 | 北京民利储能技术有限公司 | A kind of single flow heat exchanger |
| CN109115018A (en) * | 2017-06-23 | 2019-01-01 | 沈阳汇博热能设备有限公司 | It is a kind of for detachably restraining the sealing mechanism between longitudinal baffle and shell |
| CN109974507A (en) * | 2019-05-07 | 2019-07-05 | 张化机（苏州）重装有限公司 | A kind of assembly type longitudinal baffle structure |
| CN110108149A (en) * | 2019-05-07 | 2019-08-09 | 张化机（苏州）重装有限公司 | A kind of installation method of shell-and-tube heat exchanger |
-
2014
- 2014-10-23 CN CN201420614667.6U patent/CN204268951U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879959A (en) * | 2015-06-24 | 2015-09-02 | 台州龙江化工机械科技有限公司 | Dry-type evaporator |
| CN104879959B (en) * | 2015-06-24 | 2018-01-30 | 台州龙江化工机械科技有限公司 | A kind of dry evaporator |
| CN109115018A (en) * | 2017-06-23 | 2019-01-01 | 沈阳汇博热能设备有限公司 | It is a kind of for detachably restraining the sealing mechanism between longitudinal baffle and shell |
| CN109115018B (en) * | 2017-06-23 | 2024-03-01 | 沈阳汇博热能设备有限公司 | Sealing mechanism used between longitudinal partition plate of detachable tube bundle and shell |
| CN108225061A (en) * | 2018-01-09 | 2018-06-29 | 北京民利储能技术有限公司 | A kind of single flow heat exchanger |
| CN109974507A (en) * | 2019-05-07 | 2019-07-05 | 张化机（苏州）重装有限公司 | A kind of assembly type longitudinal baffle structure |
| CN110108149A (en) * | 2019-05-07 | 2019-08-09 | 张化机（苏州）重装有限公司 | A kind of installation method of shell-and-tube heat exchanger |
| CN109974507B (en) * | 2019-05-07 | 2024-04-30 | 张化机（苏州）重装有限公司 | Assembled longitudinal partition plate structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150415 Termination date: 20171023 |