CN104696514B - Double-layer thermal insulated composite sealing device for feed opening - Google Patents
Double-layer thermal insulated composite sealing device for feed opening Download PDFInfo
- Publication number
- CN104696514B CN104696514B CN201510055399.8A CN201510055399A CN104696514B CN 104696514 B CN104696514 B CN 104696514B CN 201510055399 A CN201510055399 A CN 201510055399A CN 104696514 B CN104696514 B CN 104696514B
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- CN
- China
- Prior art keywords
- double
- strip
- upper flange
- feed opening
- welded
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
Abstract
The invention discloses a double-layer thermal insulated composite sealing device for a feed opening. The double-layer thermal insulated composite sealing device comprises an upper flange and a lower flange, wherein a pressing strip is welded on the upper flange; a fixing strip is welded on the lower flange at a position corresponding to the pressing strip; a double-layer sealing strip is arranged in the fixing strip; in the assembly process, the pressing strip on the upper flange is pressed on the double-layer sealing strip in the fixing strip, and is fixed by a high-strength bolt and a nut. With adoption of the structure, the double-layer thermal insulated composite sealing device can prevent heat in a furnace from damaging the sealing strip in the long-term use, prolong the service life of the sealing strip, reduce the replacement costs and materials, improve the sealing effect, reduce the leakage of furnace atmosphere and heat, protect the workshop environment, improve the quality of products after thermal treatment in the furnace, and reduce the decarburization and darkening of products due to gas leakage.
Description
Technical field
The invention belongs to heat-treatment furnace feed opening sealing structure technical field, more particularly, to one kind are using unique high temperature double density
Encapsulation technique is not it is ensured that sealing effectiveness is it is ensured that air enters the feed opening double thermal insulation composite seal device of burner hearth.
Background technology
Existing heat-treatment furnace feed opening sealing structure, adopts Flange Plane sealing more or adopts single encapsulant, because
Feed opening internal temperature is higher, can only isolate the temperature in stove, because feed opening internal-external temperature difference is more than 300 degree after Long-Time Service, heat
The effect of sealing cannot really being played after deformation, therefore will producing gas leak phenomenon in heat treatment produces, thus leading in stove
Atmosphere is unstable, the easy decarburization of product, profile black, temperature, atmosphere overflow cause energy consumption waste and pollute.
Content of the invention
It is an object of the invention to overcoming the shortcomings of that prior art exists, and provide one kind steady for a long time under the larger temperature difference
Fixed work, sealing property is good, and the feed opening double thermal insulation composite seal device of sealing life length thoroughly to solve burner hearth gas leakage,
Or even heat treated article decarburization, the problem blacking.
The purpose of the present invention to complete by following technical solution.This feed opening double thermal insulation compound seal dress
Put, including upper flange and lower flange, described upper flange is welded with press strip, with weldering on the lower flange of this press strip opposite position
It is connected to fixed strip, in this fixed strip, be placed with double-layer seal bar；Press strip on upper flange presses in fixed strip in assembling process
Interior double-layer seal bar, and fixed by high-strength bolt and nut.
Preferably, described double-layer seal bar invades oily asbestos packing by teflin tape and high temperature forming, high temperature is invaded
Oily asbestos packing is installed in the inner part, and teflin tape is installed in the outer part, and that is, high temperature is invaded oily asbestos packing and is located at polytetrafluoroethylene (PTFE)
The inner side of band.
Radiation of burner hearth pipe is avoided to form the spoke of direct projection to sealing device preferably, the inner side of described upper flange is welded with
Penetrate baffle plate, this radiation baffle is located at the inner side of press strip.
The invention has the benefit that adopting said structure, one is to can be very good to prevent furnace heat in Long-Time Service
Middle destruction sealing strip, improves sealing strip service life, decreases replacement cost and material；Two is to improve sealing effectiveness, subtracts
Lack that oven cavity atmosphere leaks, temperature leaks, protected workshop condition；Three is to improve the product quality that burner hearth is heat-treated, and reduces
Product decarburization and nigrescence that gas leakage produces.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the application structure schematic diagram of the present invention.
Label in accompanying drawing is respectively as follows: 1, upper flange；2nd, press strip；3rd, teflin tape；4th, high temperature invades oily asbestos packing；
5th, lower flange；6th, high-strength bolt；7th, nut；8th, radiation baffle；9th, fixed strip.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is done with detailed introduction: as shown in accompanying drawing 1,2, the present invention include upper flange 1, under
Flange 5, described upper flange 1 is welded with press strip 2, with the lower flange 5 of this press strip 2 opposite position on be welded with fixed strip 9,
It is placed with double-layer seal bar in this fixed strip 9；Press strip 2 on upper flange 1 presses the bilayer in fixed strip 9 in assembling process
Sealing strip, and fixing by high-strength bolt 6 and nut 7；Described double-layer seal bar invades oil by teflin tape 3 and high temperature
Asbestos packing 4 forms, and high temperature is invaded oily asbestos packing 4 and installed in the inner part, and teflin tape 3 is installed in the outer part, and that is, high temperature invades oil
Asbestos packing 4 is located at the inner side of teflin tape 3；The inner side of described upper flange 1 is welded with and avoids radiation of burner hearth pipe to close
Seal apparatus form the radiation baffle 8 of direct projection, and this radiation baffle 8 is located at the inner side of press strip 2.
The assembling process of the present invention is: high temperature is invaded oily asbestos packing 4 and installs in the inner part, then by teflin tape 3
Install in the outer part, then the press strip 2 of upper flange 1 is compressed the double-layer seal bar on lower flange 5, load onto high-strength bolt 6, nut
7 fastenings.
The present invention, compared with existing feed opening double thermal insulation composite seal device, has the following characteristics that
1st, lower flange 5 is additionally arranged fixed strip 9, strengthens the intensity of lower flange 5, in the case of a high temperature compared with background technology more resistant to
Thermal deformation.Fixed strip 9 avoids double-layer seal bar and produces displacement, deformation when Long-Time Service, facility switching expand with heat and contract with cold simultaneously,
Ensure that position and the sealing effectiveness of double-layer seal bar.
2nd, adopt double-layer seal bar, higher near internal temperature, employ high temperature immersion oil asbestos packing 4, external temperature is relatively
Low, employ teflin tape 3, teflin tape 3 is avoided by the high temperature immersion oil asbestos packing 4 of heatproof and bears height
Temperature is it is ensured that the sealing effectiveness of its Long-Time Service.
3rd, upper flange 1 is furnished with press strip 2, the double-layer seal bar of compression lower flange 5, and the fixed strip 9 of press strip 2 and lower flange 5 is right
Double-layer seal bar forms squeezing effect it is ensured that double-layer seal bar position is stable, make double-layer seal bar elasticity direction vertical it is ensured that
Feed opening at different temperatures and is provided with sealing effectiveness when expanding with heat and contract with cold.
The present invention is not limited to above-mentioned embodiment, no matter making any change on its shape or material are constituted, every adopts
Use structure design provided by the present invention, be all a kind of deformation of the present invention, be all considered as within the scope of the present invention.
Claims (2)
1. a kind of feed opening double thermal insulation composite seal device it is characterised in that: include upper flange (1) and lower flange (5), described
Upper flange (1) on be welded with press strip (2), with the lower flange (5) of this press strip (2) opposite position on be welded with fixed strip (9),
This fixed strip is placed with double-layer seal bar in (9)；Press strip (2) on upper flange (1) presses in fixed strip (9) in assembling process
Interior double-layer seal bar, and fixing by high-strength bolt (6) and nut (7)；Described double-layer seal bar is by polytetrafluoroethylene (PTFE)
Band (3) and high temperature invade oily asbestos packing (4) composition, and high temperature is invaded oily asbestos packing (4) and installed in the inner part, teflin tape (3)
Install in the outer part, that is, high temperature invades the inner side that oily asbestos packing (4) is located at teflin tape (3).
2. feed opening double thermal insulation composite seal device according to claim 1 it is characterised in that: described upper flange
(1) inner side is welded with and avoids radiation of burner hearth pipe to form the radiation baffle (8) of direct projection, this radiation baffle (8) position to sealing device
Inner side in press strip (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055399.8A CN104696514B (en) | 2015-02-03 | 2015-02-03 | Double-layer thermal insulated composite sealing device for feed opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055399.8A CN104696514B (en) | 2015-02-03 | 2015-02-03 | Double-layer thermal insulated composite sealing device for feed opening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696514A CN104696514A (en) | 2015-06-10 |
| CN104696514B true CN104696514B (en) | 2017-01-25 |
Family
ID=53343927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510055399.8A Active CN104696514B (en) | 2015-02-03 | 2015-02-03 | Double-layer thermal insulated composite sealing device for feed opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696514B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324031B (en) * | 2021-05-28 | 2022-06-28 | 中国科学院上海光学精密机械研究所 | Strong laser radiation resistant sealed installation method for amplifier partition plate glass |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095972U (en) * | 1989-05-28 | 1992-02-12 | 朱雨秀 | Shaft seal device |
| JP2001214250A (en) * | 2000-01-28 | 2001-08-07 | Babcock Hitachi Kk | Sealing structure and double pipe device |
| CN101794912A (en) * | 2010-02-11 | 2010-08-04 | 广州市云通磁电有限公司 | Temperature-resisting cylindrical nickel-metal hydride battery |
| CN201574183U (en) * | 2009-12-29 | 2010-09-08 | 中冶南方(武汉)威仕工业炉有限公司 | Double-layer seal structure of annealing furnace cover in protective atmosphere |
| CN201825987U (en) * | 2010-09-27 | 2011-05-11 | 上海宇洋特种金属材料有限公司 | Novel sealing device for high-temperature resistant protective gas |
| CN102589302A (en) * | 2012-02-27 | 2012-07-18 | 南京凯盛国际工程有限公司 | Connecting and sealing device |
| CN204493707U (en) * | 2015-02-03 | 2015-07-22 | 杭州金舟科技股份有限公司 | Feed opening double thermal insulation composite seal device |
-
2015
- 2015-02-03 CN CN201510055399.8A patent/CN104696514B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095972U (en) * | 1989-05-28 | 1992-02-12 | 朱雨秀 | Shaft seal device |
| JP2001214250A (en) * | 2000-01-28 | 2001-08-07 | Babcock Hitachi Kk | Sealing structure and double pipe device |
| CN201574183U (en) * | 2009-12-29 | 2010-09-08 | 中冶南方(武汉)威仕工业炉有限公司 | Double-layer seal structure of annealing furnace cover in protective atmosphere |
| CN101794912A (en) * | 2010-02-11 | 2010-08-04 | 广州市云通磁电有限公司 | Temperature-resisting cylindrical nickel-metal hydride battery |
| CN201825987U (en) * | 2010-09-27 | 2011-05-11 | 上海宇洋特种金属材料有限公司 | Novel sealing device for high-temperature resistant protective gas |
| CN102589302A (en) * | 2012-02-27 | 2012-07-18 | 南京凯盛国际工程有限公司 | Connecting and sealing device |
| CN204493707U (en) * | 2015-02-03 | 2015-07-22 | 杭州金舟科技股份有限公司 | Feed opening double thermal insulation composite seal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696514A (en) | 2015-06-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20181205 Address after: 311113 Liangzhu Industrial Development Zone, Yuhang District, Hangzhou, Zhejiang Province Patentee after: Hangzhou Junma Bearing Co., Ltd. Address before: 311113 Liangzhu Industrial Development Zone, Yuhang District, Hangzhou, Zhejiang, China Patentee before: Hangzhou Jinzhou Technology Co., Ltd. |