CN111998718A - Double-tube plate sealing device of heat exchanger - Google Patents
Double-tube plate sealing device of heat exchanger Download PDFInfo
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- CN111998718A CN111998718A CN202010944602.8A CN202010944602A CN111998718A CN 111998718 A CN111998718 A CN 111998718A CN 202010944602 A CN202010944602 A CN 202010944602A CN 111998718 A CN111998718 A CN 111998718A
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- tube
- tube plate
- double
- rod
- plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
- F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a double-tube plate sealing device of a heat exchanger, which is characterized in that a sealing air bag is arranged between a double-tube plate and a heat exchange tube body, the sealing air bag is inflated by an external inflating device to completely seal a gap between the double-tube plate and the heat exchange tube, the sealing degree can be controlled by controlling the gas inlet amount, and the air bag can be taken out and replaced by a new sealing air bag after being worn, so that the defects of the traditional method that the sealing gasket between the double-tube plate and the heat exchange tube is not tight or the welding sealing is not easy to replace are overcome.
Description
Technical Field
The invention relates to the technical field of heat exchangers, in particular to a double-tube-plate sealing device of a heat exchanger.
Background
The double-tube plate heat exchanger is a heat exchanger with two tube plates with a certain gap at one end of the heat exchanger or two tube plates with a certain gap. The double-tube plate heat exchanger adopts a fixed tube plate structure, and the tube bundle can not be drawn out for cleaning, which is different from the single-tube plate heat exchanger tube bundle which can be drawn out for cleaning. A tube plate is arranged at the end part of the heat exchange tube, is called as an outer tube plate and is connected with the heat exchange tube and a tube box flange. There is also a tube sheet, referred to as the inside tube sheet, located closer to the ends of the heat exchange tubes. An isolation cavity which does not bear pressure is formed between the outer tube plate and the inner tube plate, the double-tube-plate tube type heat exchanger has the advantages of reliable and simple structure, strong applicability, convenient cleaning, large handling capacity, capability of bearing high temperature and high pressure and the like, has no dead angle, no pollution, easy cleaning, small occupied area, easy installation and the like in the heat exchanger, and the invention patent application with the publication number of CN209326421U discloses a double-tube-plate heat exchanger for a pharmaceutical water system, belongs to the field of heat exchangers and comprises a support, tube plates, a shell, a tube bundle and a baffle plate; the tube plate is fixedly connected with a first flange through a bolt, a sealing ring is arranged at the joint of the tube plate and the first flange, the first flange is connected with an eccentric reducing pipe, the eccentric reducing pipe is connected with a clamping end, a bracket is arranged at the lower part of the tube plate, two ends of the tube bundle are arranged in the tube plate, the invention discloses a connecting structure of a tube plate and a heat exchange tube in a double-tube-plate heat exchanger, which comprises an outer tube plate, an inner tube plate and a heat exchange tube, wherein the heat exchange tube is connected with the outer tube plate in a welding manner, a cover plate provided with corresponding tube holes is fixed on one side of the inner tube plate, a sealing groove coaxial with the tube holes is arranged between the cover plate and the inner tube plate, and a sealing ring in interference fit with the heat exchange tube is arranged in the sealing groove. The utility model discloses one side of interior tube sheet is fixed with the apron, interior tube sheet adopts the sealing washer hookup with the heat exchange tube, form flexible elasticity hookup, can realize thin tube sheet, the double tube sheet heat exchanger that thin pipe was made, moreover, the steam generator is compact in structure, can know from this, the sealed mode of double tube sheet and heat exchange tube adopts closing plate or welded seal mode more among the prior art, but the sealed effect of closing plate is not good, and if adopt the welded seal mode to seal then face the problem of being difficult to the dismantlement, and the sealed mode of ventilating between the sealing device clearance of past double tube sheet and heat exchange tube in addition, but this kind of mode is too extravagant gaseous.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a double-tube plate sealing device of a heat exchanger.
(II) technical scheme
The utility model provides a double tube sheet sealing device of heat exchanger, includes the heat exchange tube body, and the heat exchange tube is pegged graft on double tube sheet, and the heat exchange tube is provided with a plurality ofly, sets up in the casing, parallel arrangement between the heat exchange tube, and the one end and the casing of double tube sheet are connected, are provided with sealed gasbag between the last tube sheet in the double tube sheet and the heat exchange tube, and lower tube sheet in the double tube sheet contacts with the heat exchange tube.
Further, the heat exchange tube is L shape, and the portion of violently managing of L shape heat exchange tube sets up in the top of the last tube sheet of double-tube board, is horizontal sealing gasbag I between horizontal tube portion and the last tube sheet, and the one end of the last tube sheet upper portion fixedly connected with gag lever post of double-tube board, the other end of gag lever post and the contact of the portion of violently managing of last tube sheet, the contact of border department of gag lever post and horizontal sealing gasbag I carries on spacingly to horizontal sealing gasbag I.
Further, a vertical sealing air bag is arranged between the vertical pipes of the upper pipe plate and the L-shaped heat exchange pipe, the transverse sealing air bag I is communicated with the vertical sealing air bag, a pipe plate cavity is arranged between the upper pipe plate and the lower pipe plate, an upper cross rod is arranged on the upper portion of the pipe plate cavity, a connecting vertical rod is arranged between the pipe plate cavity and the vertical sealing air bag, a bottom cross rod is arranged on the upper portion of the lower pipe plate, a pipe plate cavity is formed between the upper cross rod, the connecting vertical rod and the bottom cross rod, and a temperature and pressure sensor is arranged in the pipe plate cavity on.
Further, a cavity groove I is formed between the upper tube plate and the upper cross rod, a transverse sealing air bag II is arranged in the cavity groove I, the transverse sealing air bag II can move left and right along with the increase and reduction of gas in the cavity groove I, the transverse sealing air bag II is communicated with the vertical sealing air bag, and the connecting vertical rod and the upper cross rod limit the transverse sealing air bag II and the vertical sealing air bag.
Further, one end of the transverse sealing air bag II in the cavity groove I is provided with a spring, the other end of the spring is connected with a movable block, the lower end of the upper tube plate on the upper portion of the cavity groove I is provided with a cavity groove II, one part of the cavity groove II is communicated with the cavity groove I, the upper end of the movable block is connected with a connecting rod, the connecting rod stretches into the cavity groove II and is connected with a movable rod in the cavity groove, the movable rod can move in the cavity groove II, one end of the cavity groove II forms an opening in one side of the upper tube plate, and the movable rod can move to the outside of the opening.
Furthermore, the bottom cross rod is a hollow rod, an inflating rod is arranged in the bottom cross rod in a penetrating mode, one end of the inflating rod penetrates out of the outer end of the shell and is connected with an inflating device, the other end of the inflating rod is communicated with the lower portion of the vertical sealing air bag, and the inflating device is provided with a switch control device.
(III) advantageous effects
Compared with the prior art, the invention provides a double-tube plate sealing device of a heat exchanger, which has the following beneficial effects:
according to the invention, the sealing air bag is arranged between the double tube plates and the heat exchange tube body, the sealing air bag is inflated by the external inflating device to completely seal the gap between the double tube plates and the heat exchange tube, the sealing degree can be controlled by controlling the gas entering amount, and the air bag can be taken out and replaced by a new sealing air bag after being worn, so that the defects of poor sealing performance or difficult replacement of welding sealing performance of the traditional sealing gasket between the double tube plates and the heat exchange tube are avoided.
Drawings
Fig. 1 is a schematic structural view of the sealing device of the present invention.
FIG. 2 is a schematic view of the connection structure of the double tube plate and the heat exchange tube of the present invention.
In the figure: the device comprises a shell 1, an upper tube plate 2, a lower tube plate 3, a heat exchange tube 4, a limiting rod 5, a vertical sealing air bag 6, an upper cross rod 7, a connecting vertical rod 8, a bottom cross rod 9, a temperature pressure sensor 10, a spring 11, a cavity groove I12, a cavity groove I13, a moving block 14, a cavity groove II 14, a connecting rod 15, a moving rod 16, a transverse sealing air bag I17 and a transverse sealing air bag II 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to FIGS. 1-2: a double-tube-plate sealing device of a heat exchanger comprises a heat exchange tube body, wherein heat exchange tubes are inserted on double tube plates, a plurality of heat exchange tubes 4 are arranged in a shell 1, the heat exchange tubes 4 are arranged in parallel, one ends of the double tube plates are connected with the shell 1, a sealing air bag 6 is arranged between an upper tube plate and the heat exchange tubes in the double tube plates, a lower tube plate 3 in the double tube plates is contacted with the heat exchange tubes 4, the heat exchange tubes 4 are L-shaped, the transverse tube parts of the L-shaped heat exchange tubes 4 are arranged above the upper tube plate 2 of the double tube plates, a transverse sealing air bag I (17) is arranged between the transverse tube parts and the upper tube plate 2, one end of a limiting rod 5 is fixedly connected to the upper part of the upper tube plate 2 of the double tube plates, the other end of the limiting rod 5 is contacted with the transverse tube part of the upper tube plate 2, the limiting rod 5 is contacted with the boundary of the transverse sealing air bag I (17, the transverse sealing air bag I (17) is communicated with the vertical sealing air bag 6, a tube plate cavity is arranged between the upper tube plate 2 and the lower tube plate 3, an upper cross rod 7 is arranged at the upper part of the tube plate cavity, a connecting vertical rod 8 is arranged between the tube plate cavity and the vertical sealing air bag, a bottom cross rod 9 is arranged at the upper part of the lower tube plate 3, a tube plate cavity is formed between the upper cross rod 7, the connecting vertical rod 8 and the bottom cross rod 9, a temperature and pressure sensor 10 is arranged on the wall of the connecting vertical rod in the tube plate cavity, a cavity groove I (12) is formed between the upper tube plate 2 and the upper cross rod 7, a transverse sealing air bag II (18) is arranged in the cavity groove I (12), the transverse sealing air bag II (18) can move left and right along with the increase and decrease of gas in the cavity groove I (12), the transverse sealing air bag II (18) is communicated with the vertical sealing air bag 6, one end of a transverse sealing air bag II (18) in a cavity groove I (12) is provided with a spring 11, the other end of the spring 11 is connected with a movable block 13, the lower end in an upper tube plate 2 at the upper part of the cavity groove I (12) is provided with a cavity groove II (14), one part of the cavity groove II (14) is communicated with the cavity groove I (12), the upper end of the movable block 13 is connected with a connecting rod 15, the connecting rod 15 extends into the cavity groove II (14) and is connected with a movable rod 16 in the cavity groove II, the movable rod 16 can move in the cavity groove II (14), one end of the cavity groove II (14) forms an opening at one side of the upper tube plate 2, the movable rod 16 can move to the outside of the opening, the bottom cross rod 9 is a hollow rod, an inflating rod penetrates through the bottom cross rod 9, one end of the inflating rod penetrates through the shell and is arranged at the outer end of the shell 1 and is connected with an inflating, the air charging device is provided with a switch control device.
The working process of the invention is as follows: thereby aerify in to aerifing the pole through control aeration switch and aerify in to sealed gasbag, thereby the clearance between heat exchange tube and the double-tube board is sealed along with the logical bloated of gasbag, and accessible control inflation rate comes to control sealed degree, and along with sealed gasbag ventilate, thereby horizontal sealed gasbag II can remove in cavity groove II and promote the removal of removal piece, thereby drive the carriage release lever and remove in cavity groove I, when removing to the tube sheet outside, remind the operator to close aeration switch, prevent sealed gasbag's excessive inflation.
Claims (4)
1. A double-tube-plate sealing device of a heat exchanger comprises a heat exchange tube body, a plurality of heat exchange tubes are inserted on the double-tube plates, the heat exchange tubes are arranged in a shell and are arranged in parallel, one end of each double-tube plate is connected with the shell, a sealing air bag is arranged between an upper tube plate and the heat exchange tube in each double-tube plate, a lower tube plate in each double-tube plate is contacted with the heat exchange tube, each heat exchange tube is L-shaped, a transverse tube part of each L-shaped heat exchange tube is arranged above the upper tube plate of each double-tube plate, a transverse sealing air bag I is arranged between each transverse tube part and the corresponding upper tube plate, one end of a limiting rod is fixedly connected to the upper tube plate of each double-tube plate, the other end of each limiting rod is contacted with the transverse tube part of the upper tube plate, each limiting rod is contacted with the boundary of the transverse sealing air bag I to limit the transverse, the tube plate cavity is formed between the upper tube plate and the lower tube plate, the upper portion of the tube plate cavity is provided with an upper cross rod, a connecting vertical rod is arranged between the tube plate cavity and the vertical sealing air bag, the upper portion of the lower tube plate is provided with a bottom cross rod, the tube plate cavity is formed between the upper cross rod, the connecting vertical rod and the bottom cross rod, and a temperature pressure sensor is arranged in the tube plate cavity on the wall of the connecting vertical rod.
2. The double tube sheet sealing device of a heat exchanger according to claim 1, wherein: go up and formed cavity groove I between tube sheet and the upper portion horizontal pole, be provided with horizontal seal gasbag II in the cavity groove I, horizontal seal gasbag II can remove about along with gaseous increase and reduction in cavity groove I, horizontal seal gasbag II and vertical seal gasbag intercommunication, connect montant and upper portion horizontal pole and carry on spacingly to horizontal seal gasbag II and vertical seal gasbag.
3. The double tube sheet sealing device of a heat exchanger according to claim 1, wherein: one end of transverse sealing gasbag II in cavity groove I is provided with the spring, the other end of spring is connected with the movable block, the lower extreme is provided with cavity groove II in the last tube sheet on I upper portion of cavity groove, partly and I intercommunication in cavity groove II, the upper end of movable block is connected with the connecting rod, the connecting rod stretches into the carriage release lever connection in II and the cavity groove of cavity groove, the carriage release lever can remove in cavity groove II, the one end of cavity groove II has formed the opening in one side of last tube sheet, the carriage release lever can move to the opening outside.
4. The double tube sheet sealing device of a heat exchanger according to claim 1, wherein: the bottom cross rod is hollow, an inflation rod penetrates through the bottom cross rod, one end of the inflation rod penetrates out of the outer end of the shell and is connected with an inflation device, the other end of the inflation rod is communicated with the lower portion of the vertical sealing air bag, and the inflation device is provided with a switch control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944602.8A CN111998718B (en) | 2020-09-10 | 2020-09-10 | Double-tube plate sealing device of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944602.8A CN111998718B (en) | 2020-09-10 | 2020-09-10 | Double-tube plate sealing device of heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111998718A true CN111998718A (en) | 2020-11-27 |
| CN111998718B CN111998718B (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010944602.8A Active CN111998718B (en) | 2020-09-10 | 2020-09-10 | Double-tube plate sealing device of heat exchanger |
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| Country | Link |
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| CN (1) | CN111998718B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2357992A1 (en) * | 1973-11-21 | 1975-05-22 | Sueddeutsche Kuehler Behr | HEAT EXCHANGER |
| EP0334817A1 (en) * | 1988-03-24 | 1989-09-27 | BORLETTI CLIMATIZZAZIONE S.r.l. | A radiator for motor vehicles |
| CN101614496A (en) * | 2009-06-29 | 2009-12-30 | 张家港市江南锅炉压力容器有限公司 | Heating medium double tube plate heat exchanger |
| DE102016207319A1 (en) * | 2016-04-28 | 2017-11-02 | Volkswagen Aktiengesellschaft | Heat exchanger and method for producing such a heat exchanger |
| CN111102859A (en) * | 2019-12-17 | 2020-05-05 | 山东九泽换热系统有限公司 | Double-tube plate heat exchanger |
| CN111366015A (en) * | 2020-03-23 | 2020-07-03 | 燕山大学 | U-shaped tube heat exchanger with baffle plate provided with air bag structure |
| CN211084911U (en) * | 2019-11-14 | 2020-07-24 | 北汇九泽(山东)智能装备有限公司 | Novel aseptic level double-tube-plate heat exchanger |
-
2020
- 2020-09-10 CN CN202010944602.8A patent/CN111998718B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2357992A1 (en) * | 1973-11-21 | 1975-05-22 | Sueddeutsche Kuehler Behr | HEAT EXCHANGER |
| EP0334817A1 (en) * | 1988-03-24 | 1989-09-27 | BORLETTI CLIMATIZZAZIONE S.r.l. | A radiator for motor vehicles |
| CN101614496A (en) * | 2009-06-29 | 2009-12-30 | 张家港市江南锅炉压力容器有限公司 | Heating medium double tube plate heat exchanger |
| DE102016207319A1 (en) * | 2016-04-28 | 2017-11-02 | Volkswagen Aktiengesellschaft | Heat exchanger and method for producing such a heat exchanger |
| CN211084911U (en) * | 2019-11-14 | 2020-07-24 | 北汇九泽(山东)智能装备有限公司 | Novel aseptic level double-tube-plate heat exchanger |
| CN111102859A (en) * | 2019-12-17 | 2020-05-05 | 山东九泽换热系统有限公司 | Double-tube plate heat exchanger |
| CN111366015A (en) * | 2020-03-23 | 2020-07-03 | 燕山大学 | U-shaped tube heat exchanger with baffle plate provided with air bag structure |
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| Publication number | Publication date |
|---|---|
| CN111998718B (en) | 2022-10-04 |
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Effective date of registration: 20221214 Address after: 750336 Southwest of Bayin Aobao Industrial Park, Alxa League High tech Industrial Development Zone, Inner Mongolia Autonomous Region Patentee after: Alxa League Donghai New Energy Industry Co.,Ltd. Address before: No.15, Wenyuan West Road, Zhengdong New District, Zhengzhou City, Henan Province, 450000 Patentee before: Zhang Chunli |