CN204493707U - Feed opening double thermal insulation composite seal device - Google Patents
Feed opening double thermal insulation composite seal device Download PDFInfo
- Publication number
- CN204493707U CN204493707U CN201520075604.2U CN201520075604U CN204493707U CN 204493707 U CN204493707 U CN 204493707U CN 201520075604 U CN201520075604 U CN 201520075604U CN 204493707 U CN204493707 U CN 204493707U
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- double
- upper flange
- press strip
- feed opening
- thermal insulation
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Abstract
The utility model relates to a kind of feed opening double thermal insulation composite seal device, comprises upper flange and lower flange, described upper flange is welded with press strip, be welded with fixed strip with on the lower flange of this press strip opposite position, be placed with double-layer seal bar in this fixed strip; Press strip on upper flange presses the double-layer seal bar in fixed strip in assembly process, and is fixed by high-strength bolt and nut.The beneficial effects of the utility model are: adopt said structure, one is to prevent furnace heat from Long-Time Service, destroying Stamping Steel Ribbon, improve Stamping Steel Ribbon working life, decrease replacement cost and material; Two is improve sealing effect, decreases that oven cavity atmosphere leaks, temperature leaks, protection workshop condition; Three is improve the heat treated quality of product of burner hearth, reduces product decarburization and the blackout of gas leakage generation.
Description
Technical field
The utility model belongs to heat treatment furnace feed opening sealing configuration technical field, particularly relates to the unique high temperature dual sealing technique of a kind of employing, guarantees sealing effect, ensures that air does not enter the feed opening double thermal insulation composite seal device of burner hearth.
Background technique
Existing heat treatment furnace feed opening sealing configuration, many employings Flange Plane seals or adopts single sealing material, because feed opening inside temperature is higher, the temperature in stove can only be isolated, because feed opening internal-external temperature difference is more than 300 degree after Long-Time Service, after thermal distortion, really cannot play the effect of sealing, therefore will produce gas leak phenomenon in heat treatment is produced, thus causing furnace atmosphere instability, the easy decarburization of product, profile blackout, temperature, atmosphere are overflowed and are caused energy consumption to waste and pollute.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art existence, and provide one can under the larger temperature difference long-term stable operation, sealability is good, the feed opening double thermal insulation composite seal device that sealing life is long, thoroughly solve burner hearth gas leakage, and even heat treated article decarburization, blackout problem.
The purpose of this utility model has been come by following technical solution.This feed opening double thermal insulation composite seal device, comprises upper flange and lower flange, described upper flange is welded with press strip, be welded with fixed strip with on the lower flange of this press strip opposite position, be placed with double-layer seal bar in this fixed strip; Press strip on upper flange presses the double-layer seal bar in fixed strip in assembly process, and is fixed by high-strength bolt and nut.
As preferably, described double-layer seal bar is made up of teflin tape and high temperature immersion oil asbestos packing, and high temperature immersion oil asbestos packing is installed in the inner part, and teflin tape is installed in the outer part, and namely high temperature immersion oil asbestos packing is positioned at the inner side of teflin tape.
As preferably, the inner side of described upper flange is welded with avoids radiation of burner hearth pipe to form the radiation baffle of direct projection to seal arrangement, and this radiation baffle is positioned at the inner side of press strip.
The beneficial effects of the utility model are: adopt said structure, one is to prevent furnace heat from Long-Time Service, destroying Stamping Steel Ribbon, improve Stamping Steel Ribbon working life, decrease replacement cost and material; Two is improve sealing effect, decreases that oven cavity atmosphere leaks, temperature leaks, protection workshop condition; Three is improve the heat treated quality of product of burner hearth, reduces product decarburization and the blackout of gas leakage generation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is application structure schematic diagram of the present utility model.
Label in accompanying drawing is respectively: 1, upper flange; 2, press strip; 3, teflin tape; 4, high temperature immersion oil asbestos packing; 5, lower flange; 6, high-strength bolt; 7, nut; 8, radiation baffle; 9, fixed strip.
Embodiment
Below in conjunction with accompanying drawing, detailed introduction is done to the utility model: as shown in accompanying drawing 1,2, the utility model comprises upper flange 1, lower flange 5, described upper flange 1 is welded with press strip 2, be welded with fixed strip 9 with on the lower flange 5 of this press strip 2 opposite position, in this fixed strip 9, be placed with double-layer seal bar; Press strip 2 on upper flange 1 presses the double-layer seal bar in fixed strip 9 in assembly process, and is fixed by high-strength bolt 6 and nut 7; Described double-layer seal bar is made up of teflin tape 3 and high temperature immersion oil asbestos packing 4, and high temperature immersion oil asbestos packing 4 is installed in the inner part, and teflin tape 3 is installed in the outer part, and namely high temperature immersion oil asbestos packing 4 is positioned at the inner side of teflin tape 3; The inner side of described upper flange 1 is welded with avoids radiation of burner hearth pipe to form the radiation baffle 8 of direct projection to seal arrangement, and this radiation baffle 8 is positioned at the inner side of press strip 2.
Assembly process of the present utility model is: installed in the inner part by high temperature immersion oil asbestos packing 4, then installed in the outer part by teflin tape 3, then the press strip 2 of upper flange 1 is compressed the double-layer seal bar on lower flange 5, loads onto high-strength bolt 6, nut 7 is fastening.
The utility model, compared with existing feed opening double thermal insulation composite seal device, has following characteristics:
1, fixed strip 9 set up by lower flange 5, strengthens the intensity of lower flange 5, in the case of a high temperature comparatively background technique more heat-resistant deforming.Fixed strip 9 avoids double-layer seal bar and produces displacement, distortion when Long-Time Service, facility switching expand with heat and contract with cold simultaneously, ensure that position and the sealing effect of double-layer seal bar.
2, double-layer seal bar is adopted, higher near inside temperature, have employed high temperature immersion oil asbestos packing 4, external temperature is lower, have employed teflin tape 3, avoid teflin tape 3 by the high temperature immersion oil asbestos packing 4 of heatproof and bear high temperature, ensure that the sealing effect of its Long-Time Service.
3, upper flange 1 is furnished with press strip 2, compress the double-layer seal bar of lower flange 5, fixed strip 9 pairs of double-layer seal bars of press strip 2 and lower flange 5 form squeezing effect, guarantee double-layer seal bar position stability, make double-layer seal bar elasticity direction vertical, ensure that feed opening at different temperatures and expand with heat and contract with cold time all possess sealing effect.
The utility model is not limited to above-mentioned mode of execution; no matter do any change on its shape or material are formed; every employing structural design provided by the utility model, is all one distortion of the present utility model, all should thinks within the utility model protection domain.
Claims (3)
1. a feed opening double thermal insulation composite seal device, it is characterized in that: comprise upper flange (1) and lower flange (5), described upper flange (1) is welded with press strip (2), be welded with fixed strip (9) with on the lower flange (5) of this press strip (2) opposite position, this fixed strip is placed with double-layer seal bar in (9); Press strip (2) on upper flange (1) presses the double-layer seal bar in fixed strip (9) in assembly process, and is fixed by high-strength bolt (6) and nut (7).
2. feed opening double thermal insulation composite seal device according to claim 1, it is characterized in that: described double-layer seal bar is made up of teflin tape (3) and high temperature immersion oil asbestos packing (4), high temperature immersion oil asbestos packing (4) is installed in the inner part, teflin tape (3) is installed in the outer part, and namely high temperature immersion oil asbestos packing (4) is positioned at the inner side of teflin tape (3).
3. feed opening double thermal insulation composite seal device according to claim 1, it is characterized in that: the inner side of described upper flange (1) is welded with avoids radiation of burner hearth pipe to form the radiation baffle (8) of direct projection to seal arrangement, and this radiation baffle (8) is positioned at the inner side of press strip (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075604.2U CN204493707U (en) | 2015-02-03 | 2015-02-03 | Feed opening double thermal insulation composite seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075604.2U CN204493707U (en) | 2015-02-03 | 2015-02-03 | Feed opening double thermal insulation composite seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493707U true CN204493707U (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520075604.2U Active CN204493707U (en) | 2015-02-03 | 2015-02-03 | Feed opening double thermal insulation composite seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696514A (en) * | 2015-02-03 | 2015-06-10 | 杭州金舟科技股份有限公司 | Double-layer thermal insulated composite sealing device for feed opening |
-
2015
- 2015-02-03 CN CN201520075604.2U patent/CN204493707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696514A (en) * | 2015-02-03 | 2015-06-10 | 杭州金舟科技股份有限公司 | Double-layer thermal insulated composite sealing device for feed opening |
| CN104696514B (en) * | 2015-02-03 | 2017-01-25 | 杭州金舟科技股份有限公司 | Double-layer thermal insulated composite sealing device for feed opening |
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