CN102748495A - Valve used in ultra-low temperature working condition - Google Patents
Valve used in ultra-low temperature working condition Download PDFInfo
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- CN102748495A CN102748495A CN2012102483110A CN201210248311A CN102748495A CN 102748495 A CN102748495 A CN 102748495A CN 2012102483110 A CN2012102483110 A CN 2012102483110A CN 201210248311 A CN201210248311 A CN 201210248311A CN 102748495 A CN102748495 A CN 102748495A
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- valve body
- valve seat
- seal ring
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Abstract
The invention discloses a valve used in an ultra-low temperature working condition. The valve comprises a valve body, a valve base and a ball, wherein a spring is arranged between the valve body and the valve body; an inserting groove is formed on the valve base; an inserting piece is arranged inside the inserting groove; a sealing structure is arranged between the valve body and the valve base; and the sealing structure is one of a single-way sealing structure or a bidirectional sealing structure. By arranging a one-way or a bidirectional sealing structure between the valve body and the valve base, the sealing effect is improved effectively.
Description
Technical field
The present invention relates to a kind of valve, be specifically related to a kind of ultralow temperature operating mode and use valve.
Background technique
Valve is the important control parts in the fluid delivery system; Be used for controlling direction, the pressure of fluid, the device of flow; Valve is the mobile device that perhaps stops and controlling its flow of medium (liquid, gas, powder) that makes in pipe arrangement and the equipment; Be used for changing path end face and media flow direction, have by, adjusting, water conservancy diversion, prevent functions such as adverse current, voltage stabilizing, shunting or overflow pressure release.The valve that is used for fluid control; Used various valves from the simplest valve to very complicated robot control system(RCS); Description is various; Can be divided into vacuum valve, low pressure valve, high pressure valve etc. according to pressure, can be divided into ultralow temperature valve, low temperature valve, high-temperature valve etc., can be divided into stop valve, ball valve, gate valve etc. according to structure according to operating temperature.Valve can be used for controlling flowing of all kinds fluids such as water, steam, fluid, gas, various Korrosionsmediums, and operating temperature can be used the high temperature of-269 ℃ ultralow temperature valve to 1430 ℃.
Referring to shown in Figure 1; Spheroid 3 or flashboard that valve generally comprises valve body 1, valve seat 2 and seals; Be provided with seal ring 4 and spring 5 between valve body and the valve seat, offer a slot on the valve seat, its inside is provided with nonmetallic plug-in unit 6; Under the situation that valve seat can be under pressure again in valve body move left and right, the plug-in unit outer end contacts with spheroid or flashboard realizes sealing.When valve when carrying the fluid of ultralow temperature, for example in the liquid nitrogen transmission course, because the temperature of liquid nitrogen be-196 ℃, and the general seal ring (for example material is a graphite) of the employing between valve body and the valve seat, this moment, seal ring lost efficacy, and caused the valve seal inefficacy.
Summary of the invention
The object of the invention provides a kind of ultralow temperature operating mode and uses valve, through the improvement to structure, has improved the sealing effect of valve.
Technological scheme of the present invention is: a kind of ultralow temperature operating mode is used valve; Comprise valve body, valve seat and spheroid; Said valve body and valve base chamber are provided with spring, offer slot on the said valve seat, are provided with plug-in unit in the said slot; Said valve body and valve base chamber are provided with sealing configuration, and said sealing configuration is a kind of in one-way sealing structure or the two way sealed structure.
A kind of ultralow temperature operating mode is used valve; Comprise valve body, valve seat and flashboard; Said valve body and valve base chamber are provided with spring, offer slot on the said valve seat, are provided with plug-in unit in the said slot; Said valve body and valve base chamber are provided with sealing configuration, and said sealing configuration is a kind of in one-way sealing structure or the two way sealed structure.
Further technological scheme, said one-way sealing structure comprises a plastic seal ring, said plastic seal ring inner near outer end is provided with a spring ring.
Further technological scheme, said two way sealed structure comprises symmetrically arranged two plastic seal rings, said plastic seal ring inner near outer end is provided with spring ring.
Further technological scheme is provided with the thrust circle outside the said plastic seal ring.
In the technique scheme, said valve is made up of valve body, valve seat and spheroid or flashboard, is provided with spring between valve body and the valve seat, offers slot on the valve seat, is provided with nonmetallic plug-in unit in the slot, and the plug-in unit outer end contacts with spheroid or flashboard realizes sealing.Also be provided with one-way sealing structure or two way sealed structure between valve body and the valve seat; The one-way sealing structure comprises a plastic seal ring; Inner near outer end at plastic seal ring is provided with a spring ring; The two way sealed circle comprises and is symmetrical set two plastic seal rings, in the inner near outer end of plastic seal ring spring ring is set, and plastic seal ring can adopt the PCTFE material to constitute.When fluid flows in valve; Can make it become ellipse by the pressure spring circle; And oval-shaped long focal length extremity can oppress plastic seal ring and outwards tightly be attached on the valve body, so just can guarantee sealing effect, and the thrust circle can make sealing configuration integral body move left and right under fluid pressure action.
Advantage of the present invention is:
1. the present invention is through being provided with unidirectional between valve body and valve seat or the two way sealed structure, and sealing configuration comprises seal ring, in seal ring, is provided with spring ring; The spring ring compressive deformation; And then oppress seal ring and be close to valve body, realize sealing, thereby effectively raise sealing effect;
2. the present invention is simple in structure, and is easy to use, and is easy to realize, is fit to promote the use of.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is the prior art constructions schematic representation;
Fig. 2 is the structural representation of the embodiment of the invention one;
Fig. 3 is the structural representation of the embodiment of the invention two;
Fig. 4 is the structural representation of the embodiment of the invention three.
Wherein: 1, valve body; 2, valve seat; 3, spheroid; 4, seal ring; 5, spring; 6, plug-in unit; 7, valve body; 8, valve seat; 9, spheroid; 10, spring; 11, plug-in unit; 12, plastic seal ring; 13, spring ring; 14, thrust circle; 15, flashboard.
Embodiment
Embodiment one: referring to shown in Figure 2, a kind of ultralow temperature operating mode is used valve, comprises valve body 7, valve seat 8 and spheroid 9; 8 of said valve body 7 valve seats are provided with spring 10, offer slot on the said valve seat 8, are provided with plug-in unit 11 in the said slot; 8 of said valve body 7 and valve seats are provided with sealing configuration; Said sealing configuration is the one-way sealing structure, and said one-way sealing structure comprises a plastic seal ring 12, and said plastic seal ring 12 inner near outer end are provided with a spring ring 13.
Valve in use, when fluid when moving, can make it become ellipse by the pressure spring circle along direction shown in the figure, and oval-shaped long focal length extremity can be oppressed the lip of plastic seal ring and outwards is close on the valve body, so just can effectively guarantee sealing effect.
Embodiment two: referring to shown in Figure 3, a kind of ultralow temperature operating mode is used valve, comprises valve body 7, valve seat 8 and spheroid 9; 8 of said valve body 7 and valve seats are provided with spring 10; Offer slot on the said valve seat 8, be provided with plug-in unit 11 in the said slot, 8 of said valve body 7 and valve seats are provided with sealing configuration; Said sealing configuration is the two way sealed structure; Said two way sealed structure comprises symmetrically arranged two plastic seal rings 12, and said plastic seal ring 12 inner near outer end are provided with spring ring 13, and said plastic seal ring 12 outsides are provided with thrust circle 14.
Valve in use; When fluid along the both direction shown in the figure when moving; All can make it become ellipse by the pressure spring circle; And oval-shaped long focal length extremity can oppress the lip of plastic seal ring and outwards be close on the valve body, so just can effectively guarantee sealing effect, and the thrust circle can be so that sealing configuration integral body move left and right under fluid pressure action.
Embodiment three: referring to shown in Figure 4, a kind of ultralow temperature operating mode is used valve, comprises valve body 7, valve seat 8 and flashboard 15; 8 of said valve body 7 and valve seats are provided with spring 19, offer slot on the said valve seat, are provided with plug-in unit 11 in the said slot; 8 of said valve body 7 and valve seats are provided with sealing configuration; Said sealing configuration is the one-way sealing structure, and said one-way sealing structure comprises a plastic seal ring 12, and said plastic seal ring 12 inner near outer end are provided with a spring ring 13.
Its working principle is similar with embodiment one.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. a ultralow temperature operating mode is used valve; Comprise valve body (7), valve seat (8) and spheroid (9); Be provided with spring (10) between said valve body (7) and valve seat (8), said valve seat offers slot on (8), is provided with plug-in unit (11) in the said slot; It is characterized in that: be provided with sealing configuration between said valve body (7) and valve seat (8), said sealing configuration is a kind of in one-way sealing structure or the two way sealed structure.
2. a ultralow temperature operating mode is used valve; Comprise valve body (7), valve seat (8) and flashboard (15); Be provided with spring (10) between said valve body (7) and valve seat (8), said valve seat offers slot on (8), is provided with plug-in unit (11) in the said slot; It is characterized in that: be provided with sealing configuration between said valve body (7) and valve seat (8), said sealing configuration is a kind of in one-way sealing structure or the two way sealed structure.
3. any ultralow temperature operating mode according to claim 1 and 2 is used valve, it is characterized in that: said one-way sealing structure comprises a plastic seal ring (12), and said plastic seal ring (12) inner near outer end is provided with a spring ring (13).
4. any ultralow temperature operating mode according to claim 1 and 2 is used valve, it is characterized in that: said two way sealed structure comprises symmetrically arranged two plastic seal rings (12), and said plastic seal ring (12) inner near outer end is provided with spring ring (13).
5. a kind of ultralow temperature operating mode according to claim 4 is used valve, it is characterized in that: said plastic seal ring (12) outside is provided with thrust circle (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102483110A CN102748495A (en) | 2012-07-18 | 2012-07-18 | Valve used in ultra-low temperature working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102483110A CN102748495A (en) | 2012-07-18 | 2012-07-18 | Valve used in ultra-low temperature working condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102748495A true CN102748495A (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102483110A Pending CN102748495A (en) | 2012-07-18 | 2012-07-18 | Valve used in ultra-low temperature working condition |
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| Country | Link |
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| CN (1) | CN102748495A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511653A (en) * | 2013-10-24 | 2014-01-15 | 天津百利展发集团有限公司 | Ultra-low temperature plate valve |
| CN104455524A (en) * | 2014-09-30 | 2015-03-25 | 江苏亿阀集团有限公司 | Composite sealing low-temperature ball valve |
| CN104653813A (en) * | 2013-11-22 | 2015-05-27 | 日本特瑞堡密封***株式会社 | Sealing construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020063229A1 (en) * | 2000-11-30 | 2002-05-30 | Metal Industries Research & Development Centre | Ball valve having a magnetic seat sealing device |
| CN2612846Y (en) * | 2003-03-26 | 2004-04-21 | 中国核工业集团公司苏州阀门厂 | Bidirectional multiple sealing metallic sealing ball valve |
| CN201517633U (en) * | 2009-10-30 | 2010-06-30 | 苏州纽威阀门有限公司 | Ultra-low temperature ball valve |
| CN201954025U (en) * | 2011-01-27 | 2011-08-31 | 保一集团有限公司 | Fireproof buried type dual-seat all-welded flat gate valve |
| CN202708167U (en) * | 2012-07-18 | 2013-01-30 | 嘉士凯（苏州）阀门配件有限公司 | Valve for ultralow-temperature working condition |
-
2012
- 2012-07-18 CN CN2012102483110A patent/CN102748495A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020063229A1 (en) * | 2000-11-30 | 2002-05-30 | Metal Industries Research & Development Centre | Ball valve having a magnetic seat sealing device |
| CN2612846Y (en) * | 2003-03-26 | 2004-04-21 | 中国核工业集团公司苏州阀门厂 | Bidirectional multiple sealing metallic sealing ball valve |
| CN201517633U (en) * | 2009-10-30 | 2010-06-30 | 苏州纽威阀门有限公司 | Ultra-low temperature ball valve |
| CN201954025U (en) * | 2011-01-27 | 2011-08-31 | 保一集团有限公司 | Fireproof buried type dual-seat all-welded flat gate valve |
| CN202708167U (en) * | 2012-07-18 | 2013-01-30 | 嘉士凯（苏州）阀门配件有限公司 | Valve for ultralow-temperature working condition |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511653A (en) * | 2013-10-24 | 2014-01-15 | 天津百利展发集团有限公司 | Ultra-low temperature plate valve |
| CN103511653B (en) * | 2013-10-24 | 2015-11-18 | 天津百利展发集团有限公司 | Ultra-low temperature plate valve |
| CN104653813A (en) * | 2013-11-22 | 2015-05-27 | 日本特瑞堡密封***株式会社 | Sealing construction |
| CN104455524A (en) * | 2014-09-30 | 2015-03-25 | 江苏亿阀集团有限公司 | Composite sealing low-temperature ball valve |
| CN104455524B (en) * | 2014-09-30 | 2017-06-20 | 江苏亿阀集团有限公司 | A kind of compound seal cryogenic ball valve |
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Application publication date: 20121024 |