CN201925592U - Oil chamber type gate valve sealing structure - Google Patents
Oil chamber type gate valve sealing structure Download PDFInfo
- Publication number
- CN201925592U CN201925592U CN2010206836777U CN201020683677U CN201925592U CN 201925592 U CN201925592 U CN 201925592U CN 2010206836777 U CN2010206836777 U CN 2010206836777U CN 201020683677 U CN201020683677 U CN 201020683677U CN 201925592 U CN201925592 U CN 201925592U
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- valve rod
- press cover
- valve
- gland
- oil
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- Expired - Fee Related
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Abstract
The utility model discloses an oil chamber type gate valve sealing structure, which comprises a valve body and a valve rod arranged on the valve body, wherein a packing seal is arranged on the valve rod positioned in a counter bore position of the valve body, a big press cover is arranged on the valve rod arranged at the upper part of a packing, an oil cup and an oil distributing ring correspondingly arranged inside the big press cover are arranged in the radial direction of the big press cover, packings are arranged on the valve rod positioned at the upper part and the lower part of the oil distributing ring, and a small press cover is arranged on the valve rod arranged at the upper end of the big press cover, wherein a small press cover body is provided with an oil storage chamber, an oil cup is arranged on the oil storage chamber of the small press cover, a matching end of the small press cover of the oil storage chamber and the valve rod is provided with a Yxd type sealing ring, and a V-shaped combined sealing element is arranged on the valve rod arranged at the matching end of the small press cover and the big press cover. The oil chamber type gate valve sealing structure has a reasonable design and a good sealing effect, the service life is synchronous with that of an oil cylinder, and the maintenance cost is greatly reduced. In addition, a dustproof sealing ring can effectively prevent impurities on the surface of the valve rod from entering an oil chamber, the sealing ring is protected, the damage of the sealing ring is avoided, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of valve seal structure, is a kind of grease chamber formula Gate-valve sealing structure specifically, can effectively improve sealing effect, reduces maintenance period.
Background technique
Sealing mainly contains modes such as the sealing of Gland formula, floating seal on traditional gate valve, generally is used for hot-blast valve and gate valve, disk valve etc. and does straight-line kinematic pair.The sealing position be utilize valve body and on sealing between the valve rod installed.On the valve rod at described valve body counterbore position, be provided with packing_seal, with the big gland of installation on the valve rod on described packing top, radially be provided with lubricating cup and corresponding oil distributing ring in inside is set along big gland, and up and down on the valve rod at position packing is installed at oil distributing ring, with on the valve rod of described big gland upper end, little gland is installed, elasticity and the valve rod by filler remains and contact realization and seal.On big gland, be provided with oil distributing ring and oil filler, keep filler elasticity and lubricated kinematic pair by continuous filling grease.Because valve rod acts frequently, operating mode is abominable, and operating ambient temperature is higher herein in addition, and the lubricant oil in the filler can constantly evaporate under action of high temperature, filler is easily followed the string because of oil starvation, reduced sealing effect, and in a single day occurred between valve rod and graphite leaking, just gushed out in the slit along between valve rod and packing up to 1300 ℃ hot blasts, the lubricant grease that high-temperature hot-air can quicken in the Expanded graphite is dry rapidly, sealing was lost efficacy rapidly, and therefore, it is big to have the sealing maintenance difficulties.
The model utility content
In view of the defective of above-mentioned technology, the utility model provides a kind of grease chamber formula Gate-valve sealing structure, efficiently solves sealing and safeguards two hang-ups, has improved working life greatly.
Technical solution of the present utility model is: grease chamber's formula Gate-valve sealing, comprise valve body and go up the valve rod of installing, the valve rod that is positioned at valve body counterbore position is provided with packing_seal, big gland is installed on the valve rod on described packing top, radially be provided with lubricating cup and corresponding oil distributing ring along big gland in big gland inside, be positioned at oil distributing ring and up and down on the valve rod at position packing be installed, on the valve rod of described big gland upper end, little gland is installed; Wherein said little gland body has an accumulator, and the accumulator of little gland is provided with lubricating cup, at the little gland of accumulator and the abutting end of valve rod Yxd RunddichtringO and dust-proof seal ring are set, and on the valve rod of described little gland and big gland abutting end, the V-type combined seal ring are installed.
According to application characteristic, the utility model can also be installed packing equally in the bottom or use flexible graphite packing except that installing the V-type combination seal on the valve rod of described little gland and big gland abutting end.
In this is novel, have and in little gland upper end capping is installed and is connected and fixed with it, by the abutting end of little gland and valve rod dust ring is set.
In a word, the utlity model has positive effect, by V-type combination seal and Yxd RunddichtringO, position is therebetween formed a grease chamber, lubricant grease in the grease chamber keeps in touch with valve rod all the time, has effectively blocked hot blast and has overflowed between the slit of valve rod, improves sealing effect, reduce maintenance period, reduce production costs.In addition, dust-proof seal ring can stop the impurity of stem surface to enter the grease chamber effectively, and the protection seal ring is avoided the damage of seal ring, improves working life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
By grease chamber's formula Gate-valve sealing structure shown in Figure 1, comprise valve body 11 and be installed in valve rod 10 on the valve body 11, the valve rod 10 that is positioned at described valve body 11 counterbore positions is provided with packing 9 sealings, big gland 12 is installed on the valve rod 10 on described packing 9 tops, and radially be provided with lubricating cup 7 along big gland 12, and corresponding oil distributing ring 6 in big gland 12 inside, be positioned on the valve rod 10 at oil distributing ring position about in the of 6 and be separately installed with V-type combination seal 5 and packing 8.Little gland 4 is installed on the valve rod 10 of described big gland 12 upper ends.In the present embodiment, has an accumulator on the body of described little gland 4, reach and on the accumulator of little gland 4, be provided with lubricating cup 3, utilization is provided with Yxd RunddichtringO 2 at the abutting end of the little gland 4 of accumulator and valve rod 10, and also is included on the valve rod 10 of little gland 4 and big gland 12 abutting ends V-type combination seal 5 is installed.Be further enhanced leaktightness, and in little gland 4 upper ends capping 13 be installed and be connected and fixed, dust ring 1 is set at the abutting end of described little gland 4 and valve rod 10.
According to the foregoing description, on the valve rod 10 of little gland 4 and big gland 12 abutting ends, install the V-type combination seal 5, packing can also be installed in the bottom equally or use flexible graphite packing, in order to substitute V-type combination seal 5.
In the present embodiment, packing 8,9 also can be selected flexible graphite packing for use.
Claims (2)
1. grease chamber's formula Gate-valve sealing structure, comprise valve body and go up the valve rod of installing, the valve rod that is positioned at valve body counterbore position is provided with packing_seal, big gland is installed on the valve rod on described packing top, radially be provided with lubricating cup and corresponding oil distributing ring along big gland in big gland inside, be positioned at oil distributing ring and up and down on the valve rod at position packing be installed, on the valve rod of described big gland upper end, little gland is installed; It is characterized in that, described little gland (4) body has an accumulator, and the accumulator of little gland (4) is provided with lubricating cup (3), at the little gland (4) of accumulator and the abutting end of valve rod (10) Yxd RunddichtringO (2) is set, goes up with the valve rod (10) of big gland (12) abutting end at described little gland (4) V-type combination seal (5) is installed.
2. grease chamber according to claim 1 formula Gate-valve sealing structure is characterized in that, has in little gland (4) upper end capping (13) to be installed and to be connected and fixed, and at the abutting end of described little gland (4) and valve rod (10) dust ring (1) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206836777U CN201925592U (en) | 2010-09-13 | 2010-12-28 | Oil chamber type gate valve sealing structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020533731.X | 2010-09-13 | ||
| CN201020533731 | 2010-09-13 | ||
| CN2010206836777U CN201925592U (en) | 2010-09-13 | 2010-12-28 | Oil chamber type gate valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925592U true CN201925592U (en) | 2011-08-10 |
Family
ID=44429439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206836777U Expired - Fee Related CN201925592U (en) | 2010-09-13 | 2010-12-28 | Oil chamber type gate valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925592U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359599A (en) * | 2011-09-07 | 2012-02-22 | 武汉船用机械有限责任公司 | Movable sealing device for telescopic full-revolving rudder paddle |
| CN104089041A (en) * | 2014-07-14 | 2014-10-08 | 浙江固特气动机械有限公司 | Valve combined type sealing structure and method thereof |
| WO2015080842A1 (en) * | 2013-11-26 | 2015-06-04 | Ge Oil & Gas Pressure Control Lp | Dual seal fire safe stem packing orientation |
| CN106704692A (en) * | 2015-07-23 | 2017-05-24 | 德维阀门铸造（苏州）有限公司 | Novel multi-rotation valve device |
| CN107218435A (en) * | 2017-06-08 | 2017-09-29 | 江苏立宇环境科技有限公司 | Floating type valve stem seal seat |
| CN108105386A (en) * | 2018-01-03 | 2018-06-01 | 马鞍山市吉利机械设备有限公司 | A kind of filter run steadily in the long term and its hybrid shaft seal assembly |
| US10036485B2 (en) | 2013-11-26 | 2018-07-31 | Ge Oil & Gas Pressure Control Lp | Dual seal fire safe stem packing orientation |
| CN109185488A (en) * | 2018-11-13 | 2019-01-11 | 江苏圣泰阀门有限公司 | A kind of high-pressure seal gate valve |
-
2010
- 2010-12-28 CN CN2010206836777U patent/CN201925592U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359599A (en) * | 2011-09-07 | 2012-02-22 | 武汉船用机械有限责任公司 | Movable sealing device for telescopic full-revolving rudder paddle |
| CN102359599B (en) * | 2011-09-07 | 2014-02-12 | 武汉船用机械有限责任公司 | Movable sealing device for telescopic full-revolving rudder paddle |
| WO2015080842A1 (en) * | 2013-11-26 | 2015-06-04 | Ge Oil & Gas Pressure Control Lp | Dual seal fire safe stem packing orientation |
| US9347585B2 (en) | 2013-11-26 | 2016-05-24 | Ge Oil & Gas Pressure Control Lp | Dual seal fire safe stem packing orientation |
| US10036485B2 (en) | 2013-11-26 | 2018-07-31 | Ge Oil & Gas Pressure Control Lp | Dual seal fire safe stem packing orientation |
| CN104089041A (en) * | 2014-07-14 | 2014-10-08 | 浙江固特气动机械有限公司 | Valve combined type sealing structure and method thereof |
| CN106704692A (en) * | 2015-07-23 | 2017-05-24 | 德维阀门铸造（苏州）有限公司 | Novel multi-rotation valve device |
| CN107218435A (en) * | 2017-06-08 | 2017-09-29 | 江苏立宇环境科技有限公司 | Floating type valve stem seal seat |
| CN108105386A (en) * | 2018-01-03 | 2018-06-01 | 马鞍山市吉利机械设备有限公司 | A kind of filter run steadily in the long term and its hybrid shaft seal assembly |
| CN108105386B (en) * | 2018-01-03 | 2024-05-14 | 马鞍山市吉利机械设备有限公司 | Filter capable of stably operating for long time and hybrid shaft sealing assembly thereof |
| CN109185488A (en) * | 2018-11-13 | 2019-01-11 | 江苏圣泰阀门有限公司 | A kind of high-pressure seal gate valve |
| CN109185488B (en) * | 2018-11-13 | 2019-12-31 | 江苏圣泰阀门有限公司 | High-pressure sealing gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20111228 |