CN105202963B - A kind of non-solder forced sealing structure of exchanger tubes and tubesheets - Google Patents
A kind of non-solder forced sealing structure of exchanger tubes and tubesheets Download PDFInfo
- Publication number
- CN105202963B CN105202963B CN201510630723.4A CN201510630723A CN105202963B CN 105202963 B CN105202963 B CN 105202963B CN 201510630723 A CN201510630723 A CN 201510630723A CN 105202963 B CN105202963 B CN 105202963B
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- Prior art keywords
- tube
- sealing structure
- tubesheets
- heat exchanger
- tube sheet
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- 238000007789 sealing Methods 0.000 title claims abstract description 40
- 229910000679 solder Inorganic materials 0.000 title claims abstract description 23
- 239000011148 porous material Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 206010022114 Injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000452 restraining Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
A kind of non-solder forced sealing structure of exchanger tubes and tubesheets of the application, including tube sheet and heat exchanger tube, tube sheet is provided with pore, and the side of tube sheet is tube side side, opposite side is shell side side, wherein, heat exchanger tube with tube sheet removable seal is connected through pore and in tube side side.Using this structure, heat exchanger tube need not be welded in the tube side side of tube sheet, you can easily removed the link position of exchanger tubes and tubesheets, to extract replacing heat exchanger tube out, realized that the non-solder of exchanger tubes and tubesheets is tightly connected.For sleeve pipe, solve the problems, such as that during equipment checking maintenance outer tube can not be changed in the case where not damaging inner tube, improve the utilization rate of inner tube reuse, and the tube sheet due to being connected with inner tube is light wall pipe harden structure, the forced sealing structure of the non-solder of the application, so that tube sheet is not deformed, advantageously in sealing.For monodromy heat pipe, equally also improve the service life of heat exchanger tube and be easy to remove and repair, the cycle of operation of extension device.
Description
Technical field
The application is related to petrochemical equipment technical field, superheater further to the pre- heat recovery system of heating furnace,
The waste heat boiler technical field of chemical fertilizer factory's synthetic ammonia installation and urea plant, more particularly to a kind of non-weldering of exchanger tubes and tubesheets
Connect forced sealing structure.
Background technology
In heat-energy recovering apparatus, such as the effect of primary waste heat boiler is energy recovery, and it is the key of synthesis ammonia system
One of equipment, superheater are also the heat-energy recovering apparatus of residual neat recovering system.Heat exchange tube core one in above-mentioned heat-energy recovering apparatus
As use bayonet tubular construction, the structure is advantageous to the circulation of steam, belongs to natural circulation waste-heat boiler.Boiler feedwater is given up by going
Heat boiler exchanges heat with high temperature shift gas, and caused high steam enters drum by tedge and carries out steam-water separation.
Under such a operating mode, it is that whole equipment is most main that the burn into of waste heat boiler pipe bundle core, which ftractures, damaged caused leakage,
The injury pattern wanted, and restrain core and typically use bayonet tubular construction, i.e. each heat exchanger tube is by the sleeve pipe on the outside of one and inner side
Inner tube composition, sleeve pipe welded with large tubesheet, and inner tube is welded with small tube sheet, because structure is special, pyroprocess gas
Cause to leak after restraining outer tube damage, when such a outer tube finds that damage needs to change, it is necessary first to strike off pad, cut off
Replacing outer tube can be carried out by extracting inner tube after inner tube out again, so, will damage inner tube, cause inner tube can not reuse, it is above-mentioned
The welding manner of inner tube of the prior art and tube sheet will be unable to carry out being individually replaced heat exchanger tube so that the life-span of equipment operation is big
It is big to reduce.
In the art, the connected mode that other one kind is not the exchanger tubes and tubesheets of sleeve structure also be present, due to
The connection of the tube side side of exchanger tubes and tubesheets is by the way of welding, when causing heat exchanger tube to go wrong needs to change, then
Need at least damage section of a pipe could realize, so cause the body of heat exchanger tube to waste, can not again after repairing again again
Utilize.
Therefore, it is improved for above mentioned problem of the prior art, how researches and develops a kind of connection of exchanger tubes and tubesheets
Sealing structure, to solve the problems, such as to be individually replaced heat exchanger tube without integral replacing heat-exchanging tube bundle, to extension device
Service life is extremely important, has extremely far-reaching and great meaning in field of engineering technology.
The content of the invention
The purpose of the application is to avoid weak point of the prior art and heat exchanger tube can be avoided damage to by providing one kind
Body can be achieved with exchanger tubes and tubesheets separation, convenient installation and dismounting, improve the exchanger tubes and tubesheets of service life of equipment
Non-solder forced sealing structure.
The purpose of the application is achieved through the following technical solutions：
A kind of non-solder forced sealing structure of exchanger tubes and tubesheets is provided, includes tube sheet and heat exchanger tube, it is described
Tube sheet is provided with pore, and the side of the tube sheet is tube side side, and the opposite side of the tube sheet is shell side side, wherein, the heat exchange
Pipe is connected through the pore and in the tube side side with the tube sheet removable seal.
Wherein, the tube side side is provided with self-locking pressing sealing structure, and the heat exchanger tube is compressed by the self-locking and sealed
Structure is connected in the tube side side with the tube sheet removable seal.
Wherein, the self-locking pressing sealing structure include keeper, compressing member, and be arranged at the keeper with it is described
Seal between heat exchanger tube, the keeper are fixed on the tube sheet, and the keeper offers positioning hole, the heat exchanger tube
The positioning hole is passed, in the presence of the compressing member and the seal, the heat exchanger tube is tightly connected with the tube sheet.
Wherein, the compressing member is provided with external screw thread, the keeper is provided be connected with the external screw thread in
Screw thread.
Wherein, the outer circumferential side of the compressing member is provided with the external screw thread.
Wherein, the outer circumferential side of the compressing member is provided with the external screw thread close to one section of the seal.
Wherein, the side of the compressing member abutting seal is arranged to the conical surface.
Wherein, the compressing member is abutted by linear contact lay with the seal.
Wherein, the compressing member is contacted by face and abutted with the seal.
Wherein, the keeper is fixed on the tube sheet by spot welding.
The beneficial effect of the application：
The non-solder forced sealing structure of a kind of exchanger tubes and tubesheets of the application, using by the company of exchanger tubes and tubesheets
Binding structure is designed as dismountable forced sealing structure, and heat exchanger tube need not be welded in the tube side side of tube sheet, you can side
Just the link position of exchanger tubes and tubesheets is removed, extracts out and change heat exchanger tube, realize the non-solder sealing of exchanger tubes and tubesheets
Connection.For sleeve pipe, asking for outer tube can not be changed in the case where not damaging inner tube during equipment checking maintenance by solving
Topic, improves the utilization rate of inner tube reuse, and the tube sheet due to being connected with inner tube is light wall pipe harden structure, the non-solder of the application
Forced sealing structure so that tube sheet is not deformed, advantageously in sealing.For monodromy heat pipe, equally also carry
The high service life of heat exchanger tube and it is easy to remove and repair, the cycle of operation of extension device.
Brief description of the drawings
Application is described further using accompanying drawing, but the embodiment in accompanying drawing does not form any restrictions to the application,
For one of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to the following drawings
Its accompanying drawing.
Fig. 1 is a kind of structural representation of the non-solder forced sealing structure of exchanger tubes and tubesheets of the application.
Include in Fig. 1：
1 --- heat exchanger tube,
2 --- tube sheet,
3 --- keeper,
4 --- seal,
5 --- compressing member,
6 --- spot welding,
A --- tube side side, B --- shell side side.
Embodiment
The application is further described with the following Examples.
Embodiment 1
A kind of one of embodiment of non-solder forced sealing structure of exchanger tubes and tubesheets of the application, such as scheme
Shown in 1, including tube sheet of the prior art 2 and heat exchanger tube 1, the tube sheet 2 are provided with pore, and the side of the tube sheet 2 is pipe
Journey side A, the opposite side of the tube sheet 2 is shell side side B, and the improvement of the application is, the heat exchanger tube 1 through the pore,
And it is connected in the tube side side A with the removable seal of tube sheet 2.It is designed as using by the attachment structure of heat exchanger tube 1 and tube sheet 2
Dismountable forced sealing structure, heat exchanger tube 1 need not be welded in the tube side side A of tube sheet 2, you can easily will heat exchange
The link position of pipe 1 and tube sheet 2 is removed, and is extracted out and is changed heat exchanger tube 1, realizes that the non-solder sealing of heat exchanger tube 1 and tube sheet 2 connects
Connect.For sleeve pipe, solve the problems, such as that during equipment checking maintenance outer tube can not be changed in the case where not damaging inner tube,
The utilization rate of inner tube reuse is improved, and the tube sheet 2 due to being connected with inner tube is light wall pipe harden structure, the non-solder of the application
Forced sealing structure so that tube sheet 2 is not deformed, advantageously in sealing.For monodromy heat pipe 1, equally also carry
The high service life of heat exchanger tube 1 and it is easy to remove and repair, the cycle of operation of extension device.
Embodiment 2
The two of the embodiment of the non-solder forced sealing structure of a kind of exchanger tubes and tubesheets of the application, such as scheme
Shown in 1, the main technical schemes of the present embodiment are same as Example 1, in the present embodiment unaccounted feature, using embodiment
Explanation in 1, is no longer repeated herein.The present embodiment and the difference of embodiment 1 are that the tube side side A is provided with self-locking
Pressing sealing structure, the heat exchanger tube 1 are removable in the tube side side A and the tube sheet 2 by the self-locking pressing sealing structure
Unload sealed connection.The self-tightening pressing sealing structure limits the axial displacement of heat exchanger tube 1 and circumferential position by applying axial compressive force
Move.
Specifically, the self-locking pressing sealing structure includes keeper 3, compressing member 5, and it is arranged at the keeper 3
With the seal 4 between the heat exchanger tube 1, the keeper 3 is fixed on the tube sheet 2, and the keeper 3 offers positioning
Hole, the heat exchanger tube 1 pass the positioning hole, in the presence of the compressing member 5 and the seal 4, the heat exchanger tube 1 with
The tube sheet 2 is tightly connected.Heat exchanger tube 1 is through pore and the positioning hole at the center of keeper 3, between keeper 3 and heat exchanger tube 1
Sealed by reserved gap using seal 4, the outside of keeper 3 is by setting compressing member 5 by heat exchanger tube 1, positioning
Part 3, seal 4 compress, and by this structure, heat exchanger tube 1 can not carry out welding with tube sheet 2 and can be achieved with sealing function, avoid
Thin tubesheet caused deformation due to welding, and by taking self-locking pressing sealing structure apart, easily equipment can be restrained
Carry out checking maintenance work.Wherein, keeper 3 can be positioning thread insert, and seal 4 can be gasket seal, and compressing member 5 can be
Hold-down ring.
Specifically, the compressing member 5 is provided with external screw thread, the keeper 3 is provided with to be connected with the external screw thread
Internal thread.The outer circumferential side of the compressing member 5 is provided with the external screw thread.It is also possible that the outer circumferential side of the compressing member 5 is close
One section of the seal 4 is provided with the external screw thread.Heat exchanger tube 1 is worn from the positioning hole among keeper 3 after being passed through from tube sheet 2
Go out, sealed between positioning hole and heat exchanger tube 1 using seal 4, outside is locked into by the screw thread between compressing member 5 and keeper 3
Row is tightened, and in Renewal process, unscrews screw fastening between compressing member 5 and keeper 3 by unclamping, dismountable seal 4, because
This can easily extract heat exchanger tube 1 out.
Specifically, the side that the compressing member 5 abuts the seal 4 is arranged to the conical surface.The compressing member 5 is connect by line
Touch and abutted with the seal 4.Such as described in Fig. 1, seal 4 is in the presence of compressing member 5, along the direction stretching, extension for tilting the conical surface
With sealed airspace；Another technical solution is, the compressing member 5 is contacted by face and abutted with the seal 4, here with it is described
What seal 4 contacted is plane, i.e., inclines compressing member 5 is since after the inside one section of transition of outer circumference surface just to the center of compressing member 5
It is oblique into the conical surface.
Specifically, the keeper 3 is fixed on the tube sheet 2 by spot welding 6.The keeper 3 being arranged on the face of tube sheet 2 exists
The position of tube sheet 2 carries out spot welding 6, it is not necessary to which all weldering is tight.
Finally it should be noted that above example is only to illustrate the technical scheme of the application, rather than the application is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the application, one of ordinary skill in the art should
Work as understanding, the technical scheme of the application can be modified or equivalent substitution, without departing from the reality of technical scheme
Matter and scope.
Claims (8)
1. a kind of non-solder forced sealing structure of exchanger tubes and tubesheets, includes tube sheet and heat exchanger tube, the tube sheet is set
There is pore, the side of the tube sheet is tube side side, and the opposite side of the tube sheet is shell side side, it is characterised in that：The heat exchanger tube
It is connected through the pore and in the tube side side with the tube sheet removable seal, the tube side side is provided with self-locking compression
Sealing structure, the heat exchanger tube are connected by the self-locking pressing sealing structure in the tube side side and the tube sheet removable seal
Connect, the self-locking pressing sealing structure includes keeper, compressing member, and is arranged between the keeper and the heat exchanger tube
Seal, the keeper is fixed on the tube sheet, and the keeper offers positioning hole, and the heat exchanger tube passes described fixed
Position hole, in the presence of the compressing member and the seal, the heat exchanger tube is tightly connected with the tube sheet.
A kind of 2. non-solder forced sealing structure of exchanger tubes and tubesheets according to claim 1, it is characterised in that：Institute
State compressing member and be provided with external screw thread, the keeper is provided with the internal thread being connected with the external screw thread.
A kind of 3. non-solder forced sealing structure of exchanger tubes and tubesheets according to claim 2, it is characterised in that：Institute
The outer circumferential side for stating compressing member is provided with the external screw thread.
A kind of 4. non-solder forced sealing structure of exchanger tubes and tubesheets according to claim 2, it is characterised in that：Institute
The outer circumferential side of compressing member is stated close to the seal one section is provided with the external screw thread.
A kind of 5. non-solder forced sealing structure of exchanger tubes and tubesheets according to claim 1, it is characterised in that：Institute
The side for stating the compressing member abutting seal is arranged to the conical surface.
A kind of 6. non-solder forced sealing structure of exchanger tubes and tubesheets according to claim 5, it is characterised in that：Institute
Compressing member is stated to abut with the seal by linear contact lay.
A kind of 7. non-solder forced sealing structure of exchanger tubes and tubesheets according to claim 5, it is characterised in that：Institute
Compressing member is stated to abut with the seal by face contact.
A kind of 8. non-solder forced sealing structure of exchanger tubes and tubesheets according to claim 1, it is characterised in that：Institute
State keeper and the tube sheet is fixed on by spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510630723.4A CN105202963B (en) | 2015-09-29 | 2015-09-29 | A kind of non-solder forced sealing structure of exchanger tubes and tubesheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510630723.4A CN105202963B (en) | 2015-09-29 | 2015-09-29 | A kind of non-solder forced sealing structure of exchanger tubes and tubesheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105202963A CN105202963A (en) | 2015-12-30 |
| CN105202963B true CN105202963B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510630723.4A Active CN105202963B (en) | 2015-09-29 | 2015-09-29 | A kind of non-solder forced sealing structure of exchanger tubes and tubesheets |
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| Country | Link |
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| CN (1) | CN105202963B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404576A (en) * | 2016-08-23 | 2017-02-15 | 上海交通大学 | Thread compression type in-circular-pipe test section device |
| CN106704716A (en) * | 2017-01-10 | 2017-05-24 | 青岛安能电力环保设备有限公司 | Detachable multi-cavity connecting piece sealing structure |
| CN108507238B (en) * | 2018-03-12 | 2021-06-22 | 云南穗特丰农业科技有限公司 | Evaporator and application thereof in heat pump unit |
| CN108507401A (en) * | 2018-03-12 | 2018-09-07 | 孔瑞清 | Pipe heat exchanger and its application in biomedical product production technology |
| CN108759501B (en) * | 2018-06-15 | 2020-06-23 | 孙崇正 | Assembled flue gas condenser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0334817A1 (en) * | 1988-03-24 | 1989-09-27 | BORLETTI CLIMATIZZAZIONE S.r.l. | A radiator for motor vehicles |
| CN202630779U (en) * | 2012-05-07 | 2012-12-26 | 武汉金中石化工程有限公司 | Welding structure of heat exchange tube and tube plate |
| CN103056580A (en) * | 2013-01-17 | 2013-04-24 | 苏州海陆重工股份有限公司 | Tool for welding of heat exchanging tube and tube plate in waste heat boiler |
| CN203132414U (en) * | 2013-03-19 | 2013-08-14 | 中国石油化工股份有限公司 | Floating head sealing structure of floating head heat exchanger with built-in packing cavity |
| CN205014884U (en) * | 2015-09-29 | 2016-02-03 | 茂名重力石化机械制造有限公司 | Heat exchange pipe and pipe plate's mandatory seal structure of non - welding |
-
2015
- 2015-09-29 CN CN201510630723.4A patent/CN105202963B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0334817A1 (en) * | 1988-03-24 | 1989-09-27 | BORLETTI CLIMATIZZAZIONE S.r.l. | A radiator for motor vehicles |
| CN202630779U (en) * | 2012-05-07 | 2012-12-26 | 武汉金中石化工程有限公司 | Welding structure of heat exchange tube and tube plate |
| CN103056580A (en) * | 2013-01-17 | 2013-04-24 | 苏州海陆重工股份有限公司 | Tool for welding of heat exchanging tube and tube plate in waste heat boiler |
| CN203132414U (en) * | 2013-03-19 | 2013-08-14 | 中国石油化工股份有限公司 | Floating head sealing structure of floating head heat exchanger with built-in packing cavity |
| CN205014884U (en) * | 2015-09-29 | 2016-02-03 | 茂名重力石化机械制造有限公司 | Heat exchange pipe and pipe plate's mandatory seal structure of non - welding |
Non-Patent Citations (1)
| Title |
|---|
| 重叠式多套管换热器结构与管头密封设计;张治川，黄磊，周波;《压力容器》;20120331;第29卷(第3期);22-25,79 * |
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| Publication number | Publication date |
|---|---|
| CN105202963A (en) | 2015-12-30 |
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Address after: 525024 Guangdong City, Maoming Province Ring West Road, No. 91 Applicant after: Maoming gravity Petrochemical Equipment Co Ltd Address before: 525024 Maoming City, Guangdong Province West Road, Maoming City, the gravity of the Petrochemical Machinery Manufacturing Co., Ltd., Applicant before: The Challenge Petrochemical Machinery Corporation |
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