CN101936394A - Sealing strip for use in ultralow-temperature places - Google Patents
Sealing strip for use in ultralow-temperature places Download PDFInfo
- Publication number
- CN101936394A CN101936394A CN 201010247938 CN201010247938A CN101936394A CN 101936394 A CN101936394 A CN 101936394A CN 201010247938 CN201010247938 CN 201010247938 CN 201010247938 A CN201010247938 A CN 201010247938A CN 101936394 A CN101936394 A CN 101936394A
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- Prior art keywords
- felt
- ultralow
- temperature
- rubber
- sealing strip
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Abstract
The invention discloses a sealing strip for use in ultralow-temperature places, which belongs to the technical field of ultralow-temperature sealing. The sealing strip is a strip material; the outer layer of the cross section is rubber; two layers of felt are arranged in the middle; and electrical heating wires which can be energized are arranged between the two layers of felt along a length direction. The sealing strip is arranged between the cover or door and the box body of an ultralow-temperature cold box; the electrical heating wires are energized periodically to keep the temperature of the sealing strip higher than the hardening temperature of the outer-layer rubber for preventing the rubber from becoming hard and fragile and cracking in the ultralow-temperature environment; and the rubber can prevent the air from frosting with cold and wetting the felt.
Description
Technical field
The invention belongs to the ultralow temperature technical field of sealing technology, be specifically related to a kind of Stamping Steel Ribbon that is used for the ultralow temperature occasion.
Technical background
At present, the Stamping Steel Ribbon of the ice chest that uses under ultralow temperature occasion below-130 ℃ all is the strip Stamping Steel Ribbon that adopts the rectangular cross-section of rubber or felt making, as shown in Figure 1, the Stamping Steel Ribbon of this structure is under ultra-low temperature surroundings, there are many shortcomings, be full of cracks etc. is followed the string, is produced in hardening such as low temperature brittleness can appear in the Stamping Steel Ribbon for rubber material, thereby makes seal failure.For the Stamping Steel Ribbon that adopts felt and so on material,, or open the cold that leaks at closing time because of the exhaust emissions of crogenic box, can make airborne water vapour meet the cold junction frost, condense into water, the felt after the immersion can freeze under the effect of low temperature environment, does not have seal action thereby Stamping Steel Ribbon is followed the string.
Summary of the invention
The object of the invention provides a kind of Stamping Steel Ribbon of new structure, can overcome the shortcoming that prior art exists effectively.
The present invention is achieved in that it is a kind of bar shaped material, and cross section is two-layer felt, it is characterized in that the cross section outermost surface is surrounded by rubber, and the centre is two-layer felt, is furnished with the electrically-heated-wire that can switch between two-layer felt along its length.The sealing bar is installed between the lid of ultralow temperature ice chest or door and the casing when sealing, periodically give the electrically-heated-wire energising, the heat that electrically-heated-wire sends keeps the temperature of Stamping Steel Ribbon to be higher than the hardening temperature of outer layer rubber material, avoid it because of under ultra-low temperature surroundings, work embrittlement, be full of cracks, the waterproof action of rubber layer can stop the exhaust emissions because of crogenic box, or open at closing time the cold that leaks and make airborne water vapour meet the cold junction frost, condense into water and soak felt.
Advantage of the present invention and good effect are:
1, can overcome the rubber material sealing that prior art exists and become fragile, the problem of be full of cracks takes place, and the felts sealing material is met the cold junction frost because of air and soaked the problem that felt freezes because of ultralow temperature hardens.
2, use conventional material, make simple, easy to operate.
Description of drawings
Fig. 1 is the cross sectional representation of the Stamping Steel Ribbon in the present technology.
The cross sectional representation of Fig. 2 Stamping Steel Ribbon of the present invention
Among the figure: 1,2-wool felt 3-silicone rubber 4-nichrome electrically-heated-wire
Embodiment
As shown in Figure 2, nichrome electric wire 4 is arranged between the wool felt 1,2, the outside wraps up with silicone rubber 3 and makes microscler strip.Be installed on the door or the position that need seal, lid place of ultralow temperature ice chest, seal by the mode that compresses.When the ultralow temperature ice chest is worked, regularly switch on for the electrically-heated-wire in the Stamping Steel Ribbon, make its temperature maintenance on the hardening temperature of outer layer rubber.
Claims (2)
1. Stamping Steel Ribbon that is used for the ultralow temperature occasion, cross section is that two-layer felt constitutes, it is characterized in that the cross section outermost surface is surrounded by rubber (3), the centre is felt (1) and felt (2), is being laid with the electrically-heated-wire (4) that can switch on along its length between felt (1) and the felt (2).
2. the Stamping Steel Ribbon that is used for the ultralow temperature occasion as claimed in claim 1 is characterized in that described rubber (3) material is a silicone rubber, and the material of electrically-heated-wire (4) is a nichrome,, the material of felt (1,2) is a wool felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102479385A CN101936394B (en) | 2010-08-05 | 2010-08-05 | Sealing strip for use in ultralow-temperature places |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102479385A CN101936394B (en) | 2010-08-05 | 2010-08-05 | Sealing strip for use in ultralow-temperature places |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101936394A true CN101936394A (en) | 2011-01-05 |
| CN101936394B CN101936394B (en) | 2012-05-09 |
Family
ID=43389881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102479385A Expired - Fee Related CN101936394B (en) | 2010-08-05 | 2010-08-05 | Sealing strip for use in ultralow-temperature places |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101936394B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB589930A (en) * | 1945-03-26 | 1947-07-03 | Cooper & Company Birmingham Lt | Improvements in oil seals |
| JPS5572950A (en) * | 1978-11-20 | 1980-06-02 | Nippon Pillar Packing Co Ltd | Ptfe-wrapped gasket |
| CN2144216Y (en) * | 1992-10-14 | 1993-10-20 | 甘少白 | Solid and liquid combined seal packing |
| JPH05313473A (en) * | 1992-05-01 | 1993-11-26 | Oobell:Kk | Sealant for sliding surface |
| CN2260201Y (en) * | 1996-09-14 | 1997-08-20 | 江阴精细化工四厂 | Wear-resistant and oil-resistant rubber blanket tape |
| CN1458486A (en) * | 2002-05-17 | 2003-11-26 | 海尔集团公司 | Low temperature vertical freezer |
| FR2845144A1 (en) * | 2002-09-26 | 2004-04-02 | Cooper Standard Automotive Fra | Reinforcement for seal strip used in motor vehicles and building comprises metal wire in transverse parallel loops of different lengths joined by textile filaments |
| CN200975195Y (en) * | 2006-12-01 | 2007-11-14 | 赵德绥 | Antifreeze door and window sealing strip and door and window sealing structure with the seal strip |
| CN101198796A (en) * | 2005-06-13 | 2008-06-11 | 诺格伦公司 | Heated seal strip |
| CN201198539Y (en) * | 2008-04-04 | 2009-02-25 | 合肥荣事达洗衣设备制造有限公司 | Thermal air flow seal device of condensing clothes dryer |
-
2010
- 2010-08-05 CN CN2010102479385A patent/CN101936394B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB589930A (en) * | 1945-03-26 | 1947-07-03 | Cooper & Company Birmingham Lt | Improvements in oil seals |
| JPS5572950A (en) * | 1978-11-20 | 1980-06-02 | Nippon Pillar Packing Co Ltd | Ptfe-wrapped gasket |
| JPH05313473A (en) * | 1992-05-01 | 1993-11-26 | Oobell:Kk | Sealant for sliding surface |
| CN2144216Y (en) * | 1992-10-14 | 1993-10-20 | 甘少白 | Solid and liquid combined seal packing |
| CN2260201Y (en) * | 1996-09-14 | 1997-08-20 | 江阴精细化工四厂 | Wear-resistant and oil-resistant rubber blanket tape |
| CN1458486A (en) * | 2002-05-17 | 2003-11-26 | 海尔集团公司 | Low temperature vertical freezer |
| FR2845144A1 (en) * | 2002-09-26 | 2004-04-02 | Cooper Standard Automotive Fra | Reinforcement for seal strip used in motor vehicles and building comprises metal wire in transverse parallel loops of different lengths joined by textile filaments |
| CN101198796A (en) * | 2005-06-13 | 2008-06-11 | 诺格伦公司 | Heated seal strip |
| CN200975195Y (en) * | 2006-12-01 | 2007-11-14 | 赵德绥 | Antifreeze door and window sealing strip and door and window sealing structure with the seal strip |
| CN201198539Y (en) * | 2008-04-04 | 2009-02-25 | 合肥荣事达洗衣设备制造有限公司 | Thermal air flow seal device of condensing clothes dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101936394B (en) | 2012-05-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20130805 |