CN201539596U - Sealing pair for hard sealed ball valve - Google Patents
Sealing pair for hard sealed ball valve Download PDFInfo
- Publication number
- CN201539596U CN201539596U CN200920040263XU CN200920040263U CN201539596U CN 201539596 U CN201539596 U CN 201539596U CN 200920040263X U CN200920040263X U CN 200920040263XU CN 200920040263 U CN200920040263 U CN 200920040263U CN 201539596 U CN201539596 U CN 201539596U
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- valve
- sealing
- ball core
- ball
- barrel
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- Expired - Fee Related
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Abstract
The utility model relates to a sealing pair for hard sealed ball valve, comprising a left valve, a right valve, a valve seat, a ball core and a valve rod, which is characterized in that the valve seat is provided with sealing components composed of a seal ring, a press ring and a spring; the sealing components are filled in the left valve and the right valve and then pressed to the ball core to rotationally fix the ball core; the right valve and the left valve which are filled in the sealing components and the ball core are formed a whole sealing pair. The utility model has the advantages of simple, compact and reasonable structure, steady and reliable performance, especially in petroleum, chemical industry and power transfer line, security, without flow resistance, high temperature and high pressure resistance, and fire and static electricity prevention, easy to maintain and replace the sealing component, thus ensuring the valve in normal running under the working condition.
Description
Technical field
The utility model relates to a kind of hard seal ball valve sealing pair structure, and it is industrial specifically can extensively to be used in oil, chemical industry, electric power etc., belongs to the automatic control technology field.
Background technique
In prior art; the hard seal ball valve sealing pair mainly is made up of valve body, valve seat, spool, valve rod etc.; the valve body of this valve, valve seat, spool, valve rod and black box machining accuracy are higher; owing to adopt hard sealing structure; particle or sharp-pointed object are not easy Sealing is destroyed as containing in the medium; and valve seat has the scraping function, can strike off the dirt that is adsorbed on spool face, as keeps in repair and do not need the dismounting of whole valve just can be changed spool or Sealing.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby provide a kind of stable performance, reliable, particularly on the transfer line of oil, chemical industry, electric power, safety, full runner, high temperature resistant, high pressure resistant, be convenient to the maintenance and the replacing of Sealing simultaneously, and can guarantee the hard seal ball valve sealing pair structure of valve normal operation under working condition.
The technological scheme that provides according to the utility model, hard seal ball valve sealing pair structure comprises left valve barrel, right valve barrel, valve seat, ball core, valve rod, feature is: seal ring, trim ring, spring composition seal assembly are housed on the described valve seat, the sealing assembly is packed in left valve barrel and the right valve barrel, valve rod inserts the left valve barrel stuffing box from the left valve barrel inner chamber, be pressed into fixedly ball core of ball core rotation, to pack into simultaneously black box right valve barrel with pack the left valve barrel of black box into, form complete sealing pair with the ball core.
Pile-up welding hard alloy layer on the described sealing surface of seat, hard alloy layer are alloy material.
Compared with the prior art the utility model has the following advantages:
The utility model is simple, compact and reasonable for structure; Stable performance, reliable, particularly on the transfer line of oil, chemical industry, electric power, safety, no flow resistance, high temperature resistant, high pressure resistant have fire prevention, electrostatic-proof function simultaneously, be convenient to the maintenance and the replacing of Sealing, and can guarantee valve normally operation under working condition.
Description of drawings
Fig. 1 is the utility model structure user mode figure.
Fig. 2 is the utility model Sealing principle schematic.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1, comprise bolt 1, nut 2, left valve barrel 3, sealing gasket 4, right valve barrel 5, seal ring 6, trim ring 7, spring 8, valve seat 9, ball core 10, valve rod 11, pad 12 etc.
The utility model adopts seal ring 6, trim ring 7, spring 8 composition seal assemblies is housed on valve seat 9, the sealing assembly is packed in left valve barrel 3 and the right valve barrel 5, and valve rod 11 inserted the left valve barrel stuffing box from left valve barrel 3 inner chambers, packing box assembly and pad 12 are contained on the described valve rod 11, be pressed into fixedly ball core of ball core 10 rotations, to pack into the simultaneously right valve barrel 5 of black box and the left valve barrel 3 of the black box of packing into form complete sealing pair with ball core 10, and with bolt 1, nut 2 connections.
In the described left valve barrel 3 sealing gasket 4 is housed.Hardfacing alloy layer on described valve seat 9 sealing surfaces, alloy-layer is an alloy material.
The utility model can keep the resistance to compression uniformity of its structure owing to adopt high temperature high-pressure resistant material under the rated working pressure of maximum, avoided other soft sealing butterfly valves to be not suitable for using under high temperature, high pressure conditions simultaneously.Sealing and link intensity are calculated through tight, and the valve internals are selected rational material for use by designing requirement, guarantee valve safety, reliable use under this working condition, guarantee that valve can be prevented fires, the function of antistatic.
The maximum difference of the utility model and other ordinary ball valve is, seal form and the encapsulant of traditional soft seal ball-valve have fundamentally been changed, high temperature resistant, the high-voltage resistance capability of valve have been improved, this valve seat construction is rationally unique, adopt elastic seat, in wider variations in temperature and pressure range, have good sealing property, sealing surface when open and close stressed evenly, distortion is little, bearing capacity is high. When the ball core is pressed on valve seat, the sealing ring, sealing ring produces distortion and high resilience, and spring plays pretension and compensating action, because valve seat has elasticity, reduced the wearing and tearing of valve seat and spool and operated lightly, made valve under any condition, can both keep good sealing property.
Sealing surface of seat described in the utility model is selected the hardfacing alloy encapsulant, has corrosion-resistantly, high temperature resistant, and the characteristics of long service life have overcome valve under the applied at elevated temperature state, the shortcoming that the thermal deformation late gate easily leaks.
The utility model sealing pair adopts resistant to elevated temperatures encapsulant (the ball wicking surface carries out cure process, sealing surface of seat pile-up welding hard alloy), and serviceability temperature can surpass 600 ℃, has the characteristics such as high temperature resistant, high pressure, burn into wearing and tearing.
The utlity model has the function of two way seal, be not subjected to during installation MEDIA FLOW to restriction, be not subjected to the impact of locus yet, can install in any direction.
Claims (2)
1. hard seal ball valve sealing pair structure, comprise left valve barrel (3), right valve barrel (5), valve seat (9), ball core (10), valve rod (11), it is characterized in that: seal ring (6), trim ring (7), spring (8) composition black box are housed on the described valve seat (9), the sealing assembly is packed in left valve barrel (3) and the right valve barrel (5), valve rod (11) inserts the left valve barrel stuffing box from left valve barrel (3) inner chamber, be pressed into ball core (10), the right valve barrel of the black box of packing into (5) forms sealing pair with the left valve barrel (3) of the black box of packing into ball core (10).
2. hard seal ball valve sealing pair structure according to claim 1 is characterized in that pile-up welding hard alloy layer on described valve seat (9) sealing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920040263XU CN201539596U (en) | 2009-04-16 | 2009-04-16 | Sealing pair for hard sealed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920040263XU CN201539596U (en) | 2009-04-16 | 2009-04-16 | Sealing pair for hard sealed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201539596U true CN201539596U (en) | 2010-08-04 |
Family
ID=42591048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920040263XU Expired - Fee Related CN201539596U (en) | 2009-04-16 | 2009-04-16 | Sealing pair for hard sealed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201539596U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359617A (en) * | 2011-10-27 | 2012-02-22 | 浙江万士通阀门有限公司 | Exquisite fire-proof ball valve |
| CN102494153A (en) * | 2011-12-23 | 2012-06-13 | 江苏苏盐阀门机械有限公司 | Fixed ball valve capable of being opened and closed easily |
| CN102650342A (en) * | 2011-02-24 | 2012-08-29 | 自贡新地佩尔阀门有限公司 | Piston type compound sealing axial flow type check valve |
| CN103335129A (en) * | 2013-07-16 | 2013-10-02 | 北京艾迪西暖通科技有限公司 | High-temperature high-pressure ball valve |
| CN106594350A (en) * | 2017-03-03 | 2017-04-26 | 上海巨良电磁阀制造有限公司 | Knife gate type high-temperature zero-leakage electromagnetic valve |
-
2009
- 2009-04-16 CN CN200920040263XU patent/CN201539596U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650342A (en) * | 2011-02-24 | 2012-08-29 | 自贡新地佩尔阀门有限公司 | Piston type compound sealing axial flow type check valve |
| CN102650342B (en) * | 2011-02-24 | 2013-12-25 | 自贡新地佩尔阀门有限公司 | Piston type compound sealing axial flow type check valve |
| CN102359617A (en) * | 2011-10-27 | 2012-02-22 | 浙江万士通阀门有限公司 | Exquisite fire-proof ball valve |
| CN102494153A (en) * | 2011-12-23 | 2012-06-13 | 江苏苏盐阀门机械有限公司 | Fixed ball valve capable of being opened and closed easily |
| CN103335129A (en) * | 2013-07-16 | 2013-10-02 | 北京艾迪西暖通科技有限公司 | High-temperature high-pressure ball valve |
| CN103335129B (en) * | 2013-07-16 | 2015-07-29 | 北京艾迪西暖通科技有限公司 | High-temp and-pressure ball valve |
| CN106594350A (en) * | 2017-03-03 | 2017-04-26 | 上海巨良电磁阀制造有限公司 | Knife gate type high-temperature zero-leakage electromagnetic valve |
| CN106594350B (en) * | 2017-03-03 | 2024-03-15 | 上海巨良电磁阀制造有限公司 | Knife switch type high temperature zero leakage electromagnetic 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 |
Owner name: XV VALVE (JIANGSU) CO., LTD. Free format text: FORMER NAME: JIANGSU SUFA HIGH-PRESSURE VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214112 Jiangsu New District of Wuxi, national hi tech Industrial Development Zone, Mei Tin Village Industrial Park Road No. 236 (A-54-7 block) Patentee after: Tin valve (Jiangsu) Co., Ltd. Address before: 214112 Jiangsu New District of Wuxi, national hi tech Industrial Development Zone, Mei Tin Village Industrial Park Road No. 236 (A-54-7 block) Patentee before: Jiangsu Sufa High-pressure Valve Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20120416 |