CN201517633U - Ultra-low temperature ball valve - Google Patents
Ultra-low temperature ball valve Download PDFInfo
- Publication number
- CN201517633U CN201517633U CN200920269684XU CN200920269684U CN201517633U CN 201517633 U CN201517633 U CN 201517633U CN 200920269684X U CN200920269684X U CN 200920269684XU CN 200920269684 U CN200920269684 U CN 200920269684U CN 201517633 U CN201517633 U CN 201517633U
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- China
- Prior art keywords
- valve
- fixture
- low temperature
- sealing
- ball
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- Expired - Fee Related
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Abstract
The utility model discloses an ultra-low temperature ball valve which comprises a valve ball, a valve holder component, a valve rod and a handle, wherein the valve holder component comprises a fixing device and a valve cover, wherein the fixing device is located between the valve ball and the valve cover, the inside of the fixing device is connected with the valve bal through a sealing component in a sealed mode, the outside thereof is connected with the valve cover through a sealing ring in a sealed mode, the inside of the fixing device is further provided with a gland flange, the gland flange is fixedly connected with the fixing device, one end of the sealing component extends to the outer periphery direction to form a lip edge, the lip edge is clamped and fixed between the fixing device and the gland flange, the sealing component is clamped and fixed between the fixing device and the valve ball through the lip edge, and the sealing ring is a spring energy accumulation sealing ring. The ultra-low temperature ball valve has excellent sealing performance, can satisfy the low temperature sealing demands, and has wide temperature range, and the performance is still stable in low temperature and ultra-low temperature environment.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of ultra-low temperature ball valve.
Background technique
Ball valve is mainly used in fluid or gas pipeline transmission, block fluid or gas are so that safeguard, overhaul or construction, be applied in industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, iron and steel widely, in national economy, occupied critical role.According to the difference of use occasion, the needs that have work in low temperature, ultralow temperature occasion, are blocked reliably in order to guarantee fluid, and the sealing of ball valve is particularly important.
Existing ball valve mainly comprises valve ball, valve component, valve rod and handle, described valve component comprises fixture and valve gap, described fixture is between valve ball and valve gap, the inboard of fixture is tightly connected by Sealing and valve ball, its outside is connected with valve bonnet seal by seal ring, and described seal ring generally is an O type circle.
Yet, there are the following problems for the ball valve of said structure: because under low temperature or ultra-low temperature surroundings, common Sealing and O type circle very easily produce bigger compression set under the effect of pretightening force, on the surface of contact of fixture and valve ball, and fixture and valve gap between all can form leakage, often do not reach desirable sealing effect.
Summary of the invention
The purpose of this utility model provides a kind of ultra-low temperature ball valve, to improve the sealing of ball valve, prevents to leak.
For achieving the above object, the technical solution adopted in the utility model is: a kind of ultra-low temperature ball valve, comprise valve ball, valve component, valve rod and handle, described valve component comprises fixture and valve gap, described fixture is between valve ball and valve gap, and the inboard of fixture is tightly connected by Sealing and valve ball, and its outside is connected with valve bonnet seal by seal ring, inboard at described fixture also is provided with gland flange, and gland flange is fixedlyed connected with fixture; The outside extending circumferentially of one end of described Sealing forms the lip limit, and described lip limit is fixedly clamped between fixture and gland flange, and Sealing is clamped and fastened between fixture and the valve ball by the lip limit; Described seal ring is the spring energy-storage seal ring.
Above, described gland flange and fixture cooperate the similar flange-type lip of formation limit clamping structure, the lip limit of Sealing is fixedly clamped between fixture and gland flange, make Sealing be clamped and fastened between fixture and the valve ball, can be good at satisfying the low temperature seal requirement after the Sealing extrusion-deformation by the lip limit.Described Sealing can adopt nonmetal sealing material.Described spring energy-storage seal ring is a prior art, can adopt existing commodity, as Lip Seal seal ring, it is a pressure assisted seal device that has teflon (or other polymeric materials) chuck, and its inside is joined and served as a contrast a corrosion resistant metal energy-storaging spring.
In the technique scheme, described gland flange and fixture are bolted to connection.
Another kind of technological scheme correspondingly, described gland flange is threaded with fixture.Promptly can process the screw thread that cooperates on gland flange and fixture is threaded.
Further technological scheme, the one side of touching with the lip edge joint of described fixture is provided with at least 1 bulge loop, is provided with the bulge loop of cooperation in the relevant position on lip limit.Thereby the formation labyrinth seal structure has effectively reduced the leakage rate of low temperature lower seal mechanism, improves the sealability of valve.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, because the outside extending circumferentially of an end of Sealing of the present utility model forms the lip limit, gland flange is pressed on the lip limit, can make the sealing part well satisfy the low temperature seal requirement after the extrusion-deformation, prevent the leakage at sealing surface place, and its temperature range is very wide, and performance is also very stable under low temperature and ultra-low temperature surroundings.
2, gland flange of the present utility model and fixture are bolted to connection, or both are threaded, thereby can be according to on-the-spot needs, and by being wrenched or loosening screw pair and adjust pretightening force, and its dismounting is very convenient, is difficult for producing relaxing.
3, fixture of the present utility model is provided with bulge loop, is provided with the bulge loop of cooperation in the relevant position on lip limit, thereby forms labyrinth seal structure, has further reduced the leakage rate of ball valve under the low temperature, has improved its sealability.
4, spring energy-storage seal ring of the present utility model is a pressure assisted seal device that has teflon (or other polymeric materials) chuck, its inside is joined and has been served as a contrast a corrosion resistant metal energy-storaging spring, when it is contained in the sealed groove between fixture and the valve gap, the spring pressurized impels chuck lip limit to be close to sealed groove and forms sealing thus; Because spring provides permanent elastic force to sealed jacket, thereby can remedy the skew or the off-centre of fret wear and mating parts, by spring force and system pressure, no matter in high pressure or low pressure, can realize effective sealing.
5, the utility model is simple in structure, easy to operate, and cost is lower, helps applying.
Description of drawings
Fig. 1 is the utility model embodiment one a partial sectional view;
Fig. 2 is the A portion enlarged view of Fig. 1.
Wherein: 1, valve ball; 2, fixture; 3, valve gap; 4, Sealing; 5, seal ring; 6, gland flange; 7, bolt; 8, lip limit; 9, bulge loop; 10, preloading spring.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one
Shown in Fig. 1～2, a kind of ultra-low temperature ball valve, comprise valve ball 1, valve component, valve rod and handle, described valve component comprises fixture 2 and valve gap 3, described fixture 2 is between valve ball 1 and valve gap 3, and the inboard of fixture is tightly connected by Sealing 4 and valve ball, and its outside is connected with valve bonnet seal by seal ring 5, inboard at described fixture also is provided with gland flange 6, and gland flange 6 is fixedlyed connected with fixture 2; The outside extending circumferentially of one end of described Sealing 4 forms lip limit 8, and described lip limit 8 is fixedly clamped between fixture 2 and gland flange 6, and Sealing is clamped and fastened between fixture and the valve ball by the lip limit; Described seal ring 5 is the spring energy-storage seal ring.
In the technique scheme, described gland flange is fixedlyed connected by bolt 7 with fixture; Also can adopt screw connection structure.The one side of touching with the lip edge joint of described fixture is provided with 2 bulge loops 9, is provided with the bulge loop of cooperation in the relevant position on lip limit; Thereby the formation labyrinth seal structure has effectively reduced the leakage rate of low temperature lower seal mechanism, improves the sealability of valve.
Described gland flange 6 is located at the front end of fixture 2, both are fixedly connected by bolt 7, be provided with preloading spring 10 in the bolt outside, form pretightening force by the effect that tights a bolt, squeeze sealing member is realized fixing and sealing, flange-type by valve seat compresses, and can effectively stop the leakage at ultralow temperature lower sealing surface place; Because it is fixing that it is that bolt is tightened, so just can adjust the pretightening force that tights a bolt, and its dismounting be very convenient according to on-the-spot needs, difficult generation relaxes.
Claims (4)
1. ultra-low temperature ball valve, comprise valve ball (1), valve component, valve rod and handle, described valve component comprises fixture (2) and valve gap (3), described fixture (2) is positioned between valve ball (1) and the valve gap (3), the inboard of fixture is tightly connected by Sealing (4) and valve ball, its outside is connected with valve bonnet seal by seal ring (5), and it is characterized in that: also be provided with gland flange (6) in the inboard of described fixture, gland flange (6) is fixedlyed connected with fixture (2); The outside extending circumferentially of one end of described Sealing (4) forms lip limit (8), and described lip limit (8) is fixedly clamped between fixture (2) and gland flange (6), and Sealing is clamped and fastened between fixture and the valve ball by the lip limit; Described seal ring (5) is the spring energy-storage seal ring.
2. ultra-low temperature ball valve according to claim 1 is characterized in that: described gland flange is fixedlyed connected by bolt (7) with fixture.
3. ultra-low temperature ball valve according to claim 1 is characterized in that: described gland flange is threaded with fixture.
4. ultra-low temperature ball valve according to claim 1 is characterized in that: the one side of touching with the lip edge joint of described fixture is provided with at least 1 bulge loop (9), is provided with the bulge loop of cooperation in the relevant position on lip limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920269684XU CN201517633U (en) | 2009-10-30 | 2009-10-30 | Ultra-low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920269684XU CN201517633U (en) | 2009-10-30 | 2009-10-30 | Ultra-low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517633U true CN201517633U (en) | 2010-06-30 |
Family
ID=42498356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920269684XU Expired - Fee Related CN201517633U (en) | 2009-10-30 | 2009-10-30 | Ultra-low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517633U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705525A (en) * | 2012-06-19 | 2012-10-03 | 苏州纽威阀门股份有限公司 | Top-entry low-temperature fixed ball valve |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102748495A (en) * | 2012-07-18 | 2012-10-24 | 嘉士凯（苏州）阀门配件有限公司 | Valve used in ultra-low temperature working condition |
| CN103322233A (en) * | 2013-07-05 | 2013-09-25 | 昆山维萨阀门有限公司 | Valve applied in ultralow-temperature environments |
| CN103591326A (en) * | 2013-11-18 | 2014-02-19 | 交城县鑫升机械有限公司 | Top entry low temperature ball valve |
| CN103742667A (en) * | 2014-01-09 | 2014-04-23 | 苏州纽威阀门股份有限公司 | Ball 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 |
| CN106151574A (en) * | 2016-08-19 | 2016-11-23 | 方正阀门集团有限公司 | Ultra-low temperature ball valve valve base sealing structure |
| CN106763868A (en) * | 2017-01-12 | 2017-05-31 | 盐城市圣泰阀门有限公司 | A kind of ultra-low temperature ball valve |
| CN110030394A (en) * | 2014-07-07 | 2019-07-19 | 株式会社电装 | Valve gear |
-
2009
- 2009-10-30 CN CN200920269684XU patent/CN201517633U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705525A (en) * | 2012-06-19 | 2012-10-03 | 苏州纽威阀门股份有限公司 | Top-entry low-temperature fixed ball valve |
| CN102748497B (en) * | 2012-07-16 | 2014-08-06 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102748495A (en) * | 2012-07-18 | 2012-10-24 | 嘉士凯（苏州）阀门配件有限公司 | Valve used in ultra-low temperature working condition |
| CN103322233A (en) * | 2013-07-05 | 2013-09-25 | 昆山维萨阀门有限公司 | Valve applied in ultralow-temperature environments |
| CN103591326A (en) * | 2013-11-18 | 2014-02-19 | 交城县鑫升机械有限公司 | Top entry low temperature ball valve |
| CN103742667A (en) * | 2014-01-09 | 2014-04-23 | 苏州纽威阀门股份有限公司 | Ball valve |
| CN103742667B (en) * | 2014-01-09 | 2015-12-02 | 苏州纽威阀门股份有限公司 | A kind of ball valve |
| CN110030394A (en) * | 2014-07-07 | 2019-07-19 | 株式会社电装 | Valve gear |
| 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 |
| CN106151574A (en) * | 2016-08-19 | 2016-11-23 | 方正阀门集团有限公司 | Ultra-low temperature ball valve valve base sealing structure |
| CN106763868A (en) * | 2017-01-12 | 2017-05-31 | 盐城市圣泰阀门有限公司 | A kind of ultra-low temperature ball valve |
| CN106763868B (en) * | 2017-01-12 | 2018-01-16 | 江苏圣泰阀门有限公司 | A kind of ultra-low temperature ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129 No. 999, Xiangjiang Road, Suzhou New District, Jiangsu, Suzhou Patentee after: Neway Valve (Suzhou) Co., Ltd. Address before: 215129 No. 999, Xiangjiang Road, Suzhou New District, Jiangsu, Suzhou Patentee before: Suzhou Neway Valve Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20181030 |