CN108317885A - The Hermetical connecting structure of exchanger tubes and tubesheets - Google Patents
The Hermetical connecting structure of exchanger tubes and tubesheets Download PDFInfo
- Publication number
- CN108317885A CN108317885A CN201810334855.6A CN201810334855A CN108317885A CN 108317885 A CN108317885 A CN 108317885A CN 201810334855 A CN201810334855 A CN 201810334855A CN 108317885 A CN108317885 A CN 108317885A
- Authority
- CN
- China
- Prior art keywords
- screw thread
- tube sheet
- external screw
- screwed pipe
- nut
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000012856 packing Methods 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000010425 asbestos Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- PZZOEXPDTYIBPI-UHFFFAOYSA-N 2-[[2-(4-hydroxyphenyl)ethylamino]methyl]-3,4-dihydro-2H-naphthalen-1-one Chemical compound C1=CC(O)=CC=C1CCNCC1C(=O)C2=CC=CC=C2CC1 PZZOEXPDTYIBPI-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- 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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/266—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by screw-type connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
Landscapes
- 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 present invention relates to heat exchanger internal structures, the specially Hermetical connecting structure of exchanger tubes and tubesheets, solve that poling when the assembly of existing sealing structure is complicated for operation, poor sealing, leakage easy to aging, the low problem of reliability, it solves the problems, such as to be not easy to be tightly connected between glass heat exchange pipe and tube sheet simultaneously, scheme：The flanged external screw thread screwed pipe in one end is screwed on tube sheet, seal groove is provided on flange, washer is equipped in slot, the screwed pipe other end is screwed with middle part nut and end nut, washer is embedded between middle part nut and tube sheet, end nut endoporus is provided with threading steps hole, and screwed pipe end is threaded into stepped hole and is embedded with seal washer.Advantage：1, processing and manufacturing is easy, of low cost；2, quick and easy for installation；3, multi-sealed effect is good；4, service life is long；5, it solves the problems, such as that glass heat exchange pipe is not easy to be tightly connected with tube sheet, plays a protective role to glass heat exchange pipe.
Description
Technical field
The present invention relates to heat exchanger internal structures, the specially Hermetical connecting structure of exchanger tubes and tubesheets.
Background technology
The connection of tube sheet and heat exchanger tube is existed in use by asbestos sleeve filling sealing etc. in heat exchanger at present
Following deficiency：(1) clamp sleeve is between tube sheet and heat exchanger tube, and poling is complex when processing；(2) the bullet mainly by casing is sealed
Property, it is easy to happen leakage after a period of use.In order to overcome above-mentioned technological deficiency, operation letter when needing to design a kind of assembly
Single, good seal performance, the service life is longer, the high Hermetical connecting structure of reliability.
Invention content
The present invention solve poling when the sealing structure assembly of existing asbestos sleeve filling at present is complicated for operation, sealing performance not
Good, easy aging causes to reveal, the low problem of reliability, provides a kind of Hermetical connecting structure of exchanger tubes and tubesheets.
The present invention is achieved by the following technical solutions：The Hermetical connecting structure of exchanger tubes and tubesheets, including tube sheet and
Heat exchanger tube is screwed with external screw thread screwed pipe on the tube sheet, is installed with heat exchanger tube in the external screw thread screwed pipe, and the one of the external screw thread screwed pipe
End be equipped with sealing flange, the sealing flange it is opposite with tube sheet be provided with lower annular seal groove, the lower annular on one side
Seal groove is embedded with lower seal washer；The external screw thread screwed pipe other end is pierced by after tube sheet is screwed with middle part nut and end successively
Nut, the tube sheet it is opposite with middle part nut be provided with middle part annular seal groove, the middle part annular seal groove and outer spiral shell on one side
Line screwed pipe and the threaded hole of tube sheet cooperation connect, and the middle part annular seal groove is embedded with middle part seal washer, the middle part
Nut is bonded with the another side of tube sheet and compresses middle part seal washer；The endoporus of the end nut is provided with step screw thread
Hole, external screw thread screwed pipe end are screwed into the step threaded hole of end nut, external screw thread screwed pipe end and level-one
End seals washer is embedded between the cascaded surface of ladder threaded hole, the heat exchanger tube is worn by sealing flange one end of external screw thread screwed pipe
Enter, is pierced by by the endoporus of end nut after end seals washer sealing.Lower annular seal groove, lower part are provided on sealing flange
Annular seal groove is embedded with lower seal washer, and external screw thread screwed pipe is screwed into tube sheet, and sealing flange compresses lower seal washer, right
Gap between external screw thread screwed pipe and tube sheet lower surface is sealed.The middle part that middle part nut compresses in the annular seal groove of middle part is close
Seal washer, the gap between external screw thread screwed pipe and tube sheet upper surface are sealed.The endoporus of end nut is provided with step spiral shell
Pit is embedded with end seals washer, exchange heat pipe and outer spiral shell between the cascaded surface and the end of external screw thread screwed pipe in step hole
Gap between line screwed pipe is sealed.
The present invention has the following advantages：1, processing and manufacturing is easy, of low cost；2, quick and easy for installation；3, multi-sealed
Effect is good；4, replacing seal washer can prolong the service life；5, the sealing being particularly suitable between glass heat exchange pipe and tube sheet
Connection solves the problems, such as that glass heat exchange pipe is not easy to be tightly connected with tube sheet, plays a protective role to glass heat exchange pipe.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
In figure：1- tube sheets, 2- heat exchanger tubes, 3- external screw thread screwed pipes, 4- lower seal washers, the middle parts 5- nut, 6- end nuts, 7-
Middle part seal washer, 8- end seals washers.
Specific implementation mode
The Hermetical connecting structure of exchanger tubes and tubesheets, including tube sheet 1 and heat exchanger tube 2 are screwed with external screw thread spiral shell on the tube sheet 1
Pipe 3, heat exchanger tube 2 is installed in the external screw thread screwed pipe 3, and an end of the external screw thread screwed pipe 3 is equipped with sealing flange, the sealing
Flange it is opposite with tube sheet 1 be provided with lower annular seal groove on one side, the lower annular seal groove is embedded with lower seal washer
4；3 other end of external screw thread screwed pipe is pierced by after tube sheet 1 and is screwed with middle part nut 5 and end nut 6 successively, and the tube sheet 1 is in
Portion's nut 5 it is opposite be provided with middle part annular seal groove on one side, the middle part annular seal groove matches with external screw thread screwed pipe 3 and tube sheet 1
The threaded hole of conjunction connects, and the middle part annular seal groove is embedded with middle part seal washer 7, the middle part nut 5 and tube sheet 1
Another side is bonded and compresses middle part seal washer 7；The endoporus of the end nut 6 is provided with step threaded hole, the outer spiral shell
3 end of line screwed pipe is screwed into the step threaded hole of end nut 6,3 end of external screw thread screwed pipe and step screw thread
End seals washer 8 is embedded between the cascaded surface in hole, the heat exchanger tube 2 is penetrated by sealing flange one end of external screw thread screwed pipe 3, is passed through
End seals washer 8 is pierced by after sealing by the endoporus of end nut 6.
When it is implemented, the end of the external screw thread screwed pipe 3 is provided with the cone-shaped end that inward hole is tilted and penetrated through with endoporus
Seal groove.The tapered inward hole of end seals slot tilts, and when end nut 6 is locked, end seals washer 8 is into heat exchanger tube 2
Portion's crimp, sealing effect are further promoted.
When installation, first lower seal washer 4 is sleeved on external screw thread screwed pipe 3, the lower annular on embedding sealing flange is close
In sealing groove, external screw thread screwed pipe 3 is screwed into tube sheet 1, sealing flange compression lower seal washer 4 is simultaneously sturdy with 1 lower surface of tube sheet,
After the middle part annular seal groove of 1 upper surface of tube sheet is embedded in middle part seal washer 7, middle part nut 5 is screwed into external screw thread screwed pipe 3,
And middle part seal washer 7 is compressed, the lower surface and 1 upper surface of tube sheet of middle part nut 5 are sturdy.By heat exchanger tube 2 by external screw thread screwed pipe 3
Lower end penetrate, and end seals washer 8 is set in cone-shaped end seal groove, finally by end nut 6 by 2 upper end of heat exchanger tube
It is inserted in, is screwed into 3 upper end of external screw thread screwed pipe, pressed end seal washer 8.
Claims (2)
1. a kind of Hermetical connecting structure of exchanger tubes and tubesheets, including tube sheet 1 and heat exchanger tube 2, it is characterised in that：The tube sheet
（1）On be screwed with external screw thread screwed pipe（3）, the external screw thread screwed pipe（3）Inside it is installed with heat exchanger tube（2）, the external screw thread screwed pipe（3）One
End is equipped with sealing flange, the sealing flange and tube sheet（1）Opposite is provided with lower annular seal groove, the lower loop on one side
Shape seal groove is embedded with lower seal washer（4）；The external screw thread screwed pipe（3）The other end is pierced by tube sheet（1）In being screwed with successively afterwards
Portion's nut（5）And end nut（6）, the tube sheet（1）With middle part nut（5）Opposite is provided with middle part annular seal groove on one side,
The middle part annular seal groove and external screw thread screwed pipe（3）And tube sheet（1）The threaded hole of cooperation connects, the middle part ring packing
Slot is embedded with middle part seal washer（7）, the middle part nut（5）With tube sheet（1）Another side be bonded and compress middle part gasket
Circle（7）；The end nut（6）Endoporus be provided with step threaded hole, the external screw thread screwed pipe（3）End is screwed into end spiral shell
It is female（6）Step threaded hole in, the external screw thread screwed pipe（3）It is embedded between end and the cascaded surface of step threaded hole
End seals washer（8）, the heat exchanger tube（2）By external screw thread screwed pipe（3）Sealing flange one end penetrate, through end seals washer
（8）By end nut after sealing（6）Endoporus be pierced by.
2. the Hermetical connecting structure of exchanger tubes and tubesheets according to claim 1, it is characterised in that：The external screw thread screwed pipe
（3）End be provided with inward hole and tilt and the cone-shaped end seal groove that is penetrated through with endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334855.6A CN108317885B (en) | 2018-04-15 | 2018-04-15 | Sealing connection structure of heat exchange tube and tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334855.6A CN108317885B (en) | 2018-04-15 | 2018-04-15 | Sealing connection structure of heat exchange tube and tube plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108317885A true CN108317885A (en) | 2018-07-24 |
| CN108317885B CN108317885B (en) | 2024-02-06 |
Family
ID=62897709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810334855.6A Active CN108317885B (en) | 2018-04-15 | 2018-04-15 | Sealing connection structure of heat exchange tube and tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108317885B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780895A (en) * | 2019-02-07 | 2019-05-21 | 世博宝得冷热科技江阴有限公司 | Square shell heat exchanger and its modular assembly technique |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0117821A2 (en) * | 1983-02-28 | 1984-09-05 | Baltimore Aircoil Company, Inc. | Compression sealing of tubes within shell and tube heat exchangers |
| DE3500767A1 (en) * | 1985-01-11 | 1986-08-07 | Friedrich 7181 Satteldorf Müller | Electrically insulating collar |
| CN2225013Y (en) * | 1995-06-15 | 1996-04-17 | 常州市化工设备厂 | Glass-enameled tube shell style heat exchanger |
| CN2253463Y (en) * | 1996-01-13 | 1997-04-30 | 李宝忠 | Glass lined double-pipe heat exchanger |
| CN2330969Y (en) * | 1998-04-29 | 1999-07-28 | 赵海龙 | Fast dismantled and assembled radiator |
| CN2723947Y (en) * | 2004-09-04 | 2005-09-07 | 张庆九 | Tubular enamel glass heat exchanger |
| CN201221906Y (en) * | 2008-04-15 | 2009-04-15 | 南京鹳山化工科技有限公司 | Column tube-type heat exchanger made of tantalum |
| CN104613239A (en) * | 2014-12-05 | 2015-05-13 | 江门市君盛实业有限公司 | Sealing structure |
| CN204771358U (en) * | 2015-07-13 | 2015-11-18 | 无锡化工装备股份有限公司 | Prevent tube sheet welding deformation's frock |
| CN105202963A (en) * | 2015-09-29 | 2015-12-30 | 茂名重力石化机械制造有限公司 | Non-welding forced sealing structure for heat exchange tube and tube plate |
| CN205545989U (en) * | 2016-04-25 | 2016-08-31 | 山西阳煤化工机械（集团）有限公司 | But disconnect electrothermal tube and tube sheet structure |
| CN208075663U (en) * | 2018-04-15 | 2018-11-09 | 山西阳煤化工机械（集团）有限公司 | The Hermetical connecting structure of exchanger tubes and tubesheets |
-
2018
- 2018-04-15 CN CN201810334855.6A patent/CN108317885B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0117821A2 (en) * | 1983-02-28 | 1984-09-05 | Baltimore Aircoil Company, Inc. | Compression sealing of tubes within shell and tube heat exchangers |
| DE3500767A1 (en) * | 1985-01-11 | 1986-08-07 | Friedrich 7181 Satteldorf Müller | Electrically insulating collar |
| CN2225013Y (en) * | 1995-06-15 | 1996-04-17 | 常州市化工设备厂 | Glass-enameled tube shell style heat exchanger |
| CN2253463Y (en) * | 1996-01-13 | 1997-04-30 | 李宝忠 | Glass lined double-pipe heat exchanger |
| CN2330969Y (en) * | 1998-04-29 | 1999-07-28 | 赵海龙 | Fast dismantled and assembled radiator |
| CN2723947Y (en) * | 2004-09-04 | 2005-09-07 | 张庆九 | Tubular enamel glass heat exchanger |
| CN201221906Y (en) * | 2008-04-15 | 2009-04-15 | 南京鹳山化工科技有限公司 | Column tube-type heat exchanger made of tantalum |
| CN104613239A (en) * | 2014-12-05 | 2015-05-13 | 江门市君盛实业有限公司 | Sealing structure |
| CN204771358U (en) * | 2015-07-13 | 2015-11-18 | 无锡化工装备股份有限公司 | Prevent tube sheet welding deformation's frock |
| CN105202963A (en) * | 2015-09-29 | 2015-12-30 | 茂名重力石化机械制造有限公司 | Non-welding forced sealing structure for heat exchange tube and tube plate |
| CN205545989U (en) * | 2016-04-25 | 2016-08-31 | 山西阳煤化工机械（集团）有限公司 | But disconnect electrothermal tube and tube sheet structure |
| CN208075663U (en) * | 2018-04-15 | 2018-11-09 | 山西阳煤化工机械（集团）有限公司 | The Hermetical connecting structure of exchanger tubes and tubesheets |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780895A (en) * | 2019-02-07 | 2019-05-21 | 世博宝得冷热科技江阴有限公司 | Square shell heat exchanger and its modular assembly technique |
| CN109780895B (en) * | 2019-02-07 | 2021-04-30 | 世博宝得冷热科技江阴有限公司 | Square shell heat exchanger and modular assembly process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108317885B (en) | 2024-02-06 |
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