CN2336172Y - Leakless packing seal structure of valve - Google Patents
Leakless packing seal structure of valve Download PDFInfo
- Publication number
- CN2336172Y CN2336172Y CN 98224019 CN98224019U CN2336172Y CN 2336172 Y CN2336172 Y CN 2336172Y CN 98224019 CN98224019 CN 98224019 CN 98224019 U CN98224019 U CN 98224019U CN 2336172 Y CN2336172 Y CN 2336172Y
- Authority
- CN
- China
- Prior art keywords
- valve
- filler
- gland
- pressing sleeve
- seal structure
- 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
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- Details Of Valves (AREA)
Abstract
The utility model discloses a packing seal structure of a leakless valve, which enables a gland to keep enough pretightening force to a filler when the filler of the valve is worn out, and the purpose that sealing and the no leakage of the filler can be always kept when the valve is in long-term operation. The utility model is characterized in that an annular pressing sleeve 4 is arranged between the filler 6 in a packing box of the valve and a pressing plate 1, and the annular pressing sleeve 4 is sheathed on a valve rod 9; an O-shaped sealing ring 3 is inlaid in a ring groove on the inner ring surface of the pressing sleeve 4; the outer cylindrical surface is provided with an outer O-shaped sealing ring 5 at one end face ring groove adjacent to the filler; a spring 2 is arranged between the pressing sleeve 4 and the pressing plate, and the spring 2 can press the pressing sleeve to in the packing box of a valve body.
Description
The utility model belongs to valve technology field, relates in particular to a kind of valve packing sealing configuration.
At present, general industry adopts filler mode filler with the sealing of valve, most asbestos, graphite and plastic or other material of adopting, with Gland it is pressed in the stuffing box, rely on the resiliently deformable of giving tight power and filler of gland to realize sealing, the wearing and tearing that produce filler that are in operation of this valve do not have indemnifying measure, reduce owing to reasons such as filler wearing and tearing cause gland to give tight power, do not guarantee the packing seal performance, cause pipeline medium to leak, befouling environment, in addition accidents caused.
The purpose of this utility model is to provide a kind of leakage-free valve packing seal structure.Can after valve packing wearing and tearing, still can keep gland that filler is had and enough give tight power, thereby realize that valve remains filler in long-time running sealing do not have leakage.
Below with reference to embodiment's description of drawings technological scheme details.
Fig. 1 is the utility model structural drawing.
The utility model comprises that one is connected on valve body 8 stuffing boxes, be inserted in the hold-down grid 1 of valve rod 9, multilayer filler 6 is housed in the stuffing box of valve body, it is characterized in that in the stuffing box of valve, between the filler 6 and pressing plate 1 a ring-like gland 4 being arranged, be set in valve rod 9, gland 4 inner ring surface annular grooves stud with " O " interior RunddichtringO 3, and gland 4 outer cylinders are by being equipped with outer " O " RunddichtringO 5 in the end face annular groove of filler, spring 2 is housed between gland 4 and pressing plate, gland is crimped in the stuffing box of valve body.
7 is Packing seat among the figure.
As shown, this valve packing sealing configuration comprises: hold-down grid, spring, O shape circle, gland, filler, Packing seat.The gland that one spring and band O type circle are arranged below the hold-down grid.
The utility model has the following advantages compared with the prior art:
1. valve is in service, can judge that the tight power of giving of hold-down grid changes by the compressive state of spring, by the adjustment spring pressure hold-down grid is applied all the time to filler and effectively gives tight power, to guarantee the packing seal performance.
2. the gland of band O type circle both can stop dielectric leakage, can prevent the air-dry inefficacy of filler again, thereby prolonged filler working life, reduced maintenance expenses.
The utility model can effectively be guaranteed the safety of valve seal performance and pipeline.
Claims (1)
1. leakage-free valve packing seal structure, comprise that is connected in valve body＜8〉on the stuffing box, be inserted in valve rod＜9〉hold-down grid＜1, multilayer filler＜6 are housed〉in the stuffing box of valve body, it is characterized in that filler in the stuffing box of valve＜6〉and pressing plate＜1 between ring-like gland＜4 are arranged, be set in valve rod＜9 〉, gland＜4〉the inner ring surface annular groove studs with " O " interior RunddichtringO＜3 〉, gland＜4〉outer cylinder is by being equipped with outer " O " RunddichtringO＜5 in the end face annular groove of filler 〉, gland＜4〉and pressing plate between spring＜2 are housed, gland is crimped in the stuffing box of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98224019 CN2336172Y (en) | 1998-05-15 | 1998-05-15 | Leakless packing seal structure of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98224019 CN2336172Y (en) | 1998-05-15 | 1998-05-15 | Leakless packing seal structure of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336172Y true CN2336172Y (en) | 1999-09-01 |
Family
ID=33974980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98224019 Expired - Fee Related CN2336172Y (en) | 1998-05-15 | 1998-05-15 | Leakless packing seal structure of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336172Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133760A (en) * | 2011-11-28 | 2013-06-05 | 北京航科航天石化氟塑泵阀有限公司 | Dual seal stop valve |
| CN103620281A (en) * | 2010-07-30 | 2014-03-05 | 世伟洛克公司 | Anti-extrusion packing support |
| CN105937653A (en) * | 2016-05-25 | 2016-09-14 | 江苏中昊船用阀门制造有限公司 | Elastic self-sealing three-eccentric center butterfly valve |
| CN106439043A (en) * | 2016-12-08 | 2017-02-22 | 安卡精密机械（天津）股份有限公司 | Novel filling valve |
| CN108644403A (en) * | 2018-07-20 | 2018-10-12 | 浙江万龙机械有限公司 | A kind of double sealing structure of plug valve |
| CN112243478A (en) * | 2018-06-06 | 2021-01-19 | 芙罗服务管理公司 | Valve assemblies, valve packing assemblies, and associated systems and methods |
| CN113819048A (en) * | 2021-10-22 | 2021-12-21 | 江西立新机液化设备制造有限公司 | Structure suitable for automatic compensation seal abrasion clearance of high pressure water plunger pump |
| CN116085524A (en) * | 2023-02-10 | 2023-05-09 | 北京星河动力装备科技有限公司 | Pneumatic valve and carrier rocket |
-
1998
- 1998-05-15 CN CN 98224019 patent/CN2336172Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103620281A (en) * | 2010-07-30 | 2014-03-05 | 世伟洛克公司 | Anti-extrusion packing support |
| CN103620281B (en) * | 2010-07-30 | 2015-11-25 | 世伟洛克公司 | Anti-extrusion filling bearing device |
| CN103133760A (en) * | 2011-11-28 | 2013-06-05 | 北京航科航天石化氟塑泵阀有限公司 | Dual seal stop valve |
| CN105937653A (en) * | 2016-05-25 | 2016-09-14 | 江苏中昊船用阀门制造有限公司 | Elastic self-sealing three-eccentric center butterfly valve |
| CN106439043A (en) * | 2016-12-08 | 2017-02-22 | 安卡精密机械（天津）股份有限公司 | Novel filling valve |
| CN112243478A (en) * | 2018-06-06 | 2021-01-19 | 芙罗服务管理公司 | Valve assemblies, valve packing assemblies, and associated systems and methods |
| EP3803173B1 (en) * | 2018-06-06 | 2023-02-15 | Flowserve Management Company | Valve assemblies, valve packing assemblies and related systems and methods |
| EP4191107A1 (en) * | 2018-06-06 | 2023-06-07 | Flowserve Management Company | Valve assemblies, valve packing assemblies and related systems and methods |
| CN112243478B (en) * | 2018-06-06 | 2023-11-03 | 芙罗服务管理公司 | Valve assembly, valve packing assembly, and related systems and methods |
| CN108644403A (en) * | 2018-07-20 | 2018-10-12 | 浙江万龙机械有限公司 | A kind of double sealing structure of plug valve |
| CN113819048A (en) * | 2021-10-22 | 2021-12-21 | 江西立新机液化设备制造有限公司 | Structure suitable for automatic compensation seal abrasion clearance of high pressure water plunger pump |
| CN116085524A (en) * | 2023-02-10 | 2023-05-09 | 北京星河动力装备科技有限公司 | Pneumatic valve and carrier rocket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |