CN100338378C - Sealing device between rotating shaft and liquid nitrogen container - Google Patents
Sealing device between rotating shaft and liquid nitrogen container Download PDFInfo
- Publication number
- CN100338378C CN100338378C CNB2005100098265A CN200510009826A CN100338378C CN 100338378 C CN100338378 C CN 100338378C CN B2005100098265 A CNB2005100098265 A CN B2005100098265A CN 200510009826 A CN200510009826 A CN 200510009826A CN 100338378 C CN100338378 C CN 100338378C
- Authority
- CN
- China
- Prior art keywords
- sealing
- liquid nitrogen
- rotating shaft
- nitrogen container
- hole
- 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.)
- Expired - Fee Related
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 32
- 210000004907 gland Anatomy 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The present invention relates to a sealing device between a rotating shaft and a liquid nitrogen container, particularly to a sealing device between a rotating component and a liquid nitrogen container, which is composed of a liquid nitrogen container 1, a rotating shaft 2, compressing devices 3 and sealing elements 4, wherein through holes 1-1 which share the same shaft and are provided with shoulders are arranged on two side walls of the liquid nitrogen container 1, and the rotating shaft 2 is installed in the through holes 1-1; the sealing elements 4 are arranged between the inner walls of the through holes 1-1 and the rotating shaft 2, and the compressing devices 3 are fixedly installed between the outer end surfaces of the sealing elements 4 and the hole walls of the through holes 1-1. The sealing device of the present invention solves the problems of complicated structure, poor sealing effect and easy damage of sealing elements of the original sealing device between a rotating component and a liquid nitrogen container. The sealing device of the present invention has the advantages of simple structure, convenient installation, favorable sealing effect and hard damage of the sealing elements.
Description
Technical field:
The present invention relates to the seal arrangement between a kind of rotatable parts and the liquid nitrogen container, be specifically related to the seal arrangement between a kind of rotating shaft and the liquid nitrogen container.
Background technique:
At present, liquid nitrogen has all obtained great application in industry, agricultural, medical treatment, biotechnology and preservation technique, but owing to liquid nitrogen easily gasifies, and can absorb a large amount of heats in the gasification, so liquid nitrogen is very important with the sealing problem in the transportation process in use.Liquid nitrogen sealing in the past only relates to the sealing of seal container opening, belongs to the sealing of liquid nitrogen container itself, and employed Sealing mostly is various low temperature resistant valve class A of geometric unitA.And for the sealing between other workpieces and the liquid nitrogen container, then there is complex structure in the particularly sealing between rotatable parts and the liquid nitrogen container, and sealing effect is poor, the problem that Sealing damages easily.
Summary of the invention:
The objective of the invention is that there is complex structure in the sealing between the rotatable parts and liquid nitrogen container in order to solve in the past, sealing effect is poor, Sealing damages problem and a kind of rotating shaft that provides and the seal arrangement between the liquid nitrogen container easily, it has simple in structure, easy for installation, good sealing effect, the non-damageable advantage of Sealing.It is made up of liquid nitrogen container 1, rotating shaft 2, hold down gag 3, Sealing 4; The through hole 1-1 that has coaxial band shoulder on two sidewalls of liquid nitrogen container 1, rotating shaft 2 is housed in the through hole 1-1, between the inwall of through hole 1-1 and rotating shaft 2 Sealing 4 is housed, between the hole wall of the exterior edge face of Sealing 4 and through hole 1-1 hold down gag 3 is housed fixedly, described Sealing 4 is the wet hair felt collar.The present invention has following beneficial effect: one, there is complex structure in the sealing between existing rotatable parts and the liquid nitrogen container, sealing effect is poor, the problem that Sealing damages easily, the present invention has overcome above-mentioned so that deficiency and the defective that exists in the technology to be arranged, and through test of many times, has determined technological scheme of the present invention at last, the present invention has simple in structure, easy for installation, good sealing effect, the non-damageable advantage of Sealing.Two, when assembling, between the madial wall and rotating shaft of the liquid nitrogen container through hole of earlier Sealing being packed into, between the hole wall of the exterior edge face of Sealing and through hole, hold down gag is housed, utilize hold down gag and seal combination to use, the better effects if that liquid nitrogen is sealed.
Description of drawings:
Fig. 1 is a whole sectional structure schematic representation of the present invention.
Embodiment:
Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment is made up of liquid nitrogen container 1, rotating shaft 2, hold down gag 3, Sealing 4; The through hole 1-1 that has coaxial band shoulder on two sidewalls of liquid nitrogen container 1, rotating shaft 2 is housed in the through hole 1-1, between the inwall of through hole 1-1 and rotating shaft 2 Sealing 4 is housed, between the hole wall of the exterior edge face of Sealing 4 and through hole 1-1 hold down gag 3 is housed fixedly, described Sealing 4 is the wet hair felt collar.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the Sealing 4 of present embodiment is the Sealing of not embrittlement at low temperatures that can absorb water also; Described energy absorbs water also at low temperatures, and the Sealing 4 of not embrittlement is the felt circle.Adopt the Sealing 4-felt circle of not embrittlement at low temperatures that can absorb water also, its good sealing effect, and not fragile.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 present embodiment is described, the hold down gag 3 of present embodiment is for having externally threaded gland nut; The outside thread of gland nut is connected with the internal thread of through hole 1-1.Employing has externally threaded gland nut and has screwing between the through hole 1-1 of internal thread, can guarantee that Sealing 4 compresses, and makes the better effects if of liquid nitrogen sealing.Other composition and annexation are identical with embodiment one.
Working principle is: between the madial wall and rotating shaft 2 of the liquid nitrogen container through hole 1-1 that earlier the wet hair felt collar packed into, in the through hole 1-1 of wet hair felt collar exterior edge face, be equipped with and have externally threaded gland nut, internal thread with externally threaded gland nut and through hole 1-1 is screwed compress the wet hair felt collar, when the wet hair felt collar with after liquid nitrogen contacts, water in the wet hair felt collar freezes at once, the space of wet hair felt collar and the space between the rotating shaft 2 are all filled up, reached the purpose of sealing.
Claims (2)
1, the seal arrangement between a kind of rotating shaft and the liquid nitrogen container, it is made up of liquid nitrogen container (1), rotating shaft (2), hold down gag (3), Sealing (4); It is characterized in that having on two sidewalls of liquid nitrogen container (1) through hole (1-1) of coaxial band shoulder, rotating shaft (2) is housed in the through hole (1-1), between the inwall of through hole (1-1) and rotating shaft (2), Sealing (4) is housed, between the hole wall of the exterior edge face of Sealing (4) and through hole (1-1) hold down gag (3) is housed fixedly, described Sealing (4) is the wet hair felt collar.
2, the seal arrangement between rotating shaft according to claim 1 and the liquid nitrogen container is characterized in that described hold down gag (3) is for having externally threaded gland nut; The outside thread of gland nut is connected with the internal thread of through hole (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100098265A CN100338378C (en) | 2005-03-16 | 2005-03-16 | Sealing device between rotating shaft and liquid nitrogen container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100098265A CN100338378C (en) | 2005-03-16 | 2005-03-16 | Sealing device between rotating shaft and liquid nitrogen container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664419A CN1664419A (en) | 2005-09-07 |
| CN100338378C true CN100338378C (en) | 2007-09-19 |
Family
ID=35035643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100098265A Expired - Fee Related CN100338378C (en) | 2005-03-16 | 2005-03-16 | Sealing device between rotating shaft and liquid nitrogen container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100338378C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762207B (en) * | 2019-11-12 | 2022-02-11 | 国网重庆市电力公司电力科学研究院 | Sealing device for online electrochemical test of overhead ground wire and test method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3704019A (en) * | 1970-06-19 | 1972-11-28 | Gen Electric | Spiral groove face seals |
| CN87107261A (en) * | 1986-12-03 | 1988-06-15 | 封闭装备有限公司 | Improved rotating seal |
| US5496047A (en) * | 1992-07-04 | 1996-03-05 | John Crane Uk Limited | Mechanical seal containing a sealing face with grooved regions which generate hydrodynamic lift between the sealing faces |
| WO1997030303A1 (en) * | 1996-02-16 | 1997-08-21 | Barber-Colman Company | Stem sealing system for broad temperature ranges |
| CN2335766Y (en) * | 1998-09-04 | 1999-09-01 | 陈毅凯 | Equation mixer |
| JP2000199652A (en) * | 1998-12-28 | 2000-07-18 | Daikin Ind Ltd | Seal structure for displacer of very low temperature refrigerator |
| CN2451390Y (en) * | 2000-12-05 | 2001-10-03 | 戴伟 | Sealing structure for output end of hydraulic steering device of vehicle |
| CN2497861Y (en) * | 2001-09-07 | 2002-07-03 | 宁波明欣化工机械有限责任公司 | Low-temperature reactor device |
| CN1552920A (en) * | 2003-05-29 | 2004-12-08 | 锐步科技有限公司 | Method and apparatus for ultra-low temperature refrigerating treatment and heating treatment continuous treatment |
-
2005
- 2005-03-16 CN CNB2005100098265A patent/CN100338378C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3704019A (en) * | 1970-06-19 | 1972-11-28 | Gen Electric | Spiral groove face seals |
| CN87107261A (en) * | 1986-12-03 | 1988-06-15 | 封闭装备有限公司 | Improved rotating seal |
| US5496047A (en) * | 1992-07-04 | 1996-03-05 | John Crane Uk Limited | Mechanical seal containing a sealing face with grooved regions which generate hydrodynamic lift between the sealing faces |
| WO1997030303A1 (en) * | 1996-02-16 | 1997-08-21 | Barber-Colman Company | Stem sealing system for broad temperature ranges |
| CN2335766Y (en) * | 1998-09-04 | 1999-09-01 | 陈毅凯 | Equation mixer |
| JP2000199652A (en) * | 1998-12-28 | 2000-07-18 | Daikin Ind Ltd | Seal structure for displacer of very low temperature refrigerator |
| CN2451390Y (en) * | 2000-12-05 | 2001-10-03 | 戴伟 | Sealing structure for output end of hydraulic steering device of vehicle |
| CN2497861Y (en) * | 2001-09-07 | 2002-07-03 | 宁波明欣化工机械有限责任公司 | Low-temperature reactor device |
| CN1552920A (en) * | 2003-05-29 | 2004-12-08 | 锐步科技有限公司 | Method and apparatus for ultra-low temperature refrigerating treatment and heating treatment continuous treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1664419A (en) | 2005-09-07 |
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Effective date of registration: 20180329 Address after: 150001 No. 434, postal street, Nangang District, Heilongjiang, Harbin Patentee after: Harbin Institute of Technology National University Science Park Development Co., Ltd. Address before: 150001 Harbin, Nangang, West District, large straight street, No. 92 Patentee before: Harbin Institute of Technology |
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Effective date of registration: 20180511 Address after: 510000 room 340, C 340, Shi Huan Road, Tianhe District, Guangzhou, Guangdong. Patentee after: Harbin robotics group (Guangzhou) intellectual property Klc Holdings Ltd Address before: 150001 vice 434, postal street, Nangang District, Harbin, Heilongjiang. Patentee before: Harbin Institute of Technology National University Science Park Development Co., Ltd. |
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Effective date of registration: 20180620 Address after: 150000 intersection of Dalian North Road and Xingkai Road, Harbin, Heilongjiang Patentee after: Hagongda robot group (Harbin) Asset Management Co., Ltd. Address before: 510000 room 340, C 340, Shi Huan Road, Tianhe District, Guangzhou, Guangdong. Patentee before: Harbin robotics group (Guangzhou) intellectual property Klc Holdings Ltd |
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Effective date of registration: 20180705 Address after: 150000 Dalian Road North and Xingkai Road, Harbin, Heilongjiang province. Patentee after: Hagongda robot group (Harbin) Asset Management Co., Ltd. Address before: 510000 room 340, C 340, Shi Huan Road, Tianhe District, Guangzhou, Guangdong. Patentee before: Harbin robotics group (Guangzhou) intellectual property Klc Holdings Ltd |
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Effective date of registration: 20190613 Address after: Room 306, Building A, Building 3, Building 11, Courtyard 8, Liangshuihe Second Street, Daxing District, Beijing Patentee after: Beijing hi tech robot Co., Ltd. Address before: 150000 Dalian Road North and Xingkai Road, Harbin, Heilongjiang province. Patentee before: Hagongda robot group (Harbin) Asset Management Co., Ltd. |
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Effective date of registration: 20191016 Address after: Room 501, entrepreneurial service center, Chengdong Industrial Park, Shuangshan street, Zhangqiu District, Jinan City, Shandong Province Patentee after: Harbin University of technology robot group (Shandong) Co., Ltd. Address before: Room 306, Building A, Building 3, Building 11, Courtyard 8, Liangshuihe Second Street, Daxing District, Beijing Patentee before: Beijing hi tech robot Co., Ltd. |
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Granted publication date: 20070919 Termination date: 20210316 |
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