CN107542944A - A kind of fuel gas ball valve sealing structure - Google Patents
A kind of fuel gas ball valve sealing structure Download PDFInfo
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- CN107542944A CN107542944A CN201710893494.4A CN201710893494A CN107542944A CN 107542944 A CN107542944 A CN 107542944A CN 201710893494 A CN201710893494 A CN 201710893494A CN 107542944 A CN107542944 A CN 107542944A
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- sealing plate
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- fuel gas
- sealing
- valve
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Abstract
The present invention relates to technical field of valve manufacturing, specifically, it is a kind of fuel gas ball valve sealing structure, act between valve body and extension tube, including three-layer sealed plate, the first sealing plate is followed successively by from extension tube to valve body, second sealing plate and the 3rd sealing plate, the thickness of first sealing plate is more than the thickness of the second sealing plate, the thickness of first sealing plate is less than the thickness of the 3rd sealing plate, the upper and lower ends of first sealing plate are provided with plain cushion, the upper and lower ends of second sealing plate are provided with butterfly spring, the upper and lower ends of 3rd sealing plate are connected with the ball pad seat of L-type, ball pad is provided with ball pad seat, the contact position of ball pad and extension tube is provided with packing ring, first sealing plate, second sealing plate is made with the 3rd sealing plate of polytetrafluoroethylmaterial material, the good airproof performance of the present invention, safety coefficient is high, and service life is grown.
Description
Technical field
The present invention relates to technical field of valve manufacturing, is a kind of fuel gas ball valve sealing structure specifically.
Background technology
Valve is for being opened and closed pipeline, control flow direction, regulation and the parameter of control pumped (conveying) medium（Temperature, pressure and flow）
Pipeline fittings.According to its function, shut-off valve, check-valves, regulating valve etc. can be divided into.Valve is the control in fluid delivery system
Part, there is cut-off, regulation, water conservancy diversion, prevent the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.
Valve can be used for controlling empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radioactivity
The flowing of all kinds fluid such as medium.Valve is also divided into cast iron valve, cast steel valve, stainless valve according to material（201、
304th, 316 etc.）, chrome-molybdenum steel valve, Chrominm-molybdenum-vanadium steel valve, dual phase steel valve, Plastic valve, nonstandard customized valve etc..
Ball valve is because valve seat is made up of carbonization teflon seal ring and disk spring, so the change to pressure and temperature
Change adaptable, will not be produced in the range of mark pressure and temperature and any let out cunning.Typically use carbon steel seamless steel pipe
Compressing Integral welded ball valve, there is good sealing property and decay resistance, be widely used in natural gas, oil,
Heat supply, chemical industry and the isometric defeated pipeline field of thermoelectricity pipe network.But existing ball valve can not meet existing there is significant limitation
For the needs of chemical industry production.
The content of the invention
It is an object of the invention to provide a kind of fuel gas ball valve sealing structure, sealing is good, and safety coefficient is high.
In order to achieve the above object, the present invention is as follows using technical scheme：
A kind of fuel gas ball valve sealing structure, is acted between valve body and extension tube, including three-layer sealed plate, from extension tube to valve body
The first sealing plate, the second sealing plate and the 3rd sealing plate are followed successively by, the thickness of the first sealing plate is more than the thickness of the second sealing plate,
The thickness of first sealing plate is less than the thickness of the 3rd sealing plate.
Further improvement of the present invention, the upper and lower ends of the first sealing plate are provided with plain cushion.
Further improvement of the present invention, the upper and lower ends of the second sealing plate are provided with butterfly spring.
Further improvement of the present invention, the upper and lower ends of the 3rd sealing plate are connected with the ball pad seat of L-type, set on ball pad seat
There is ball pad.
The contact position of further improvement of the present invention, ball pad and extension tube is provided with packing ring.
Further improvement of the present invention, the first sealing plate, the second sealing plate and the 3rd sealing plate use polytetrafluoroethylene (PTFE) material
Material is made.
Beneficial effects of the present invention：Compared with existing gas valve, good airproof performance of the invention, safety coefficient is high, and makes
Use long lifespan.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the enlarged diagram of part A in Fig. 1.
In figure, 1- extension tubes, 2- valve bodies, the sealing plates of 3- first, the sealing plates of 4- second, the sealing plates of 5- the 3rd, 6- plain cushions, 7-
Butterfly spring, 8- ball pad seats, 9- packing rings, 10- ball pads.
Embodiment
In order to deepen the understanding of the present invention, the present invention is done below in conjunction with drawings and examples and further retouched in detail
State, the embodiment is only used for explaining the present invention, and protection scope of the present invention is not formed and limited.
Embodiment：As depicted in figs. 1 and 2, a kind of fuel gas ball valve sealing structure, is acted between valve body 2 and extension tube 1,
Including three-layer sealed plate, the first sealing plate 3, the second sealing plate 4 and the 3rd sealing plate 5 are followed successively by from extension tube 1 to valve body 2, the
The thickness of one sealing plate 3 is more than the thickness of the second sealing plate 4, and the thickness of the first sealing plate 3 is less than the thickness of the 3rd sealing plate 5,
The upper and lower ends of first sealing plate 3 are provided with plain cushion 6, and the upper and lower ends of the second sealing plate 4 are provided with butterfly spring 7, and the 3rd is close
The upper and lower ends of shrouding 5 are connected with the ball pad seat 8 of L-type, and ball pad 10, the contact with extension tube 1 of ball pad 10 are provided with ball pad seat 8
Position is provided with packing ring 9.
In the present embodiment, the first sealing plate 3, the second sealing plate 4 and the 3rd sealing plate 5 use polytetrafluoroethylmaterial material system
Into.
General principle, the main features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. a kind of fuel gas ball valve sealing structure, is acted between valve body and extension tube, it is characterised in that including three-layer sealed plate,
The first sealing plate, the second sealing plate and the 3rd sealing plate are followed successively by from extension tube to valve body, the thickness of first sealing plate is big
In the thickness of second sealing plate, the thickness of first sealing plate is less than the thickness of the 3rd sealing plate.
2. fuel gas ball valve sealing structure according to claim 1, it is characterised in that the upper and lower ends of first sealing plate
It is provided with plain cushion.
3. fuel gas ball valve sealing structure according to claim 2, it is characterised in that the upper and lower ends of second sealing plate
It is provided with butterfly spring.
4. fuel gas ball valve sealing structure according to claim 3, it is characterised in that the upper and lower ends of the 3rd sealing plate
The ball pad seat of L-type is connected with, ball pad is provided with the ball pad seat.
5. fuel gas ball valve sealing structure according to claim 4, it is characterised in that the ball pad connects with the extension tube
Tactile position is provided with packing ring.
6. according to the fuel gas ball valve sealing structure described in claim any one of 1-5, it is characterised in that first sealing plate,
Second sealing plate is made with the 3rd sealing plate of polytetrafluoroethylmaterial material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710893494.4A CN107542944A (en) | 2017-09-28 | 2017-09-28 | A kind of fuel gas ball valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710893494.4A CN107542944A (en) | 2017-09-28 | 2017-09-28 | A kind of fuel gas ball valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542944A true CN107542944A (en) | 2018-01-05 |
Family
ID=60963591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710893494.4A Pending CN107542944A (en) | 2017-09-28 | 2017-09-28 | A kind of fuel gas ball valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542944A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715069A (en) * | 2018-07-11 | 2020-01-21 | 江苏威尔迪威阀业有限公司 | Ultra-large-diameter ball valve sealing structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544143Y (en) * | 2002-07-02 | 2003-04-09 | 张洪庆 | Metal edged teflom seal gasket with high-strength sandwich graphite |
| JP2005299808A (en) * | 2004-04-13 | 2005-10-27 | Nok Corp | Seal for pump |
| DE102011015226A1 (en) * | 2010-06-28 | 2011-12-29 | Carl Freudenberg Kg | Radial shaft sealing ring for use in passenger car, has axial lip provided with pumping screw that is formed on inner side of axial lip facing shaft, dirt lip comprising multiple partial lips, and sealing lip spring-loaded by annular spring |
| CN202612619U (en) * | 2012-06-13 | 2012-12-19 | 浙江嘉日氟塑料有限公司 | Fluorine plastic rubber sealing flat washer |
| CN203500552U (en) * | 2013-09-28 | 2014-03-26 | 江苏威尔迪威阀业有限公司 | Sealing structure of floating flexible seal welding ball valve |
| CN105485346A (en) * | 2016-02-23 | 2016-04-13 | 亿德机电科技（福建）有限公司 | Seal capable of radially rotating and axially sliding |
| CN105697785A (en) * | 2016-04-18 | 2016-06-22 | 北京裕泰行新材料科技有限公司 | Symmetrical spring seal ring |
-
2017
- 2017-09-28 CN CN201710893494.4A patent/CN107542944A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544143Y (en) * | 2002-07-02 | 2003-04-09 | 张洪庆 | Metal edged teflom seal gasket with high-strength sandwich graphite |
| JP2005299808A (en) * | 2004-04-13 | 2005-10-27 | Nok Corp | Seal for pump |
| DE102011015226A1 (en) * | 2010-06-28 | 2011-12-29 | Carl Freudenberg Kg | Radial shaft sealing ring for use in passenger car, has axial lip provided with pumping screw that is formed on inner side of axial lip facing shaft, dirt lip comprising multiple partial lips, and sealing lip spring-loaded by annular spring |
| CN202612619U (en) * | 2012-06-13 | 2012-12-19 | 浙江嘉日氟塑料有限公司 | Fluorine plastic rubber sealing flat washer |
| CN203500552U (en) * | 2013-09-28 | 2014-03-26 | 江苏威尔迪威阀业有限公司 | Sealing structure of floating flexible seal welding ball valve |
| CN105485346A (en) * | 2016-02-23 | 2016-04-13 | 亿德机电科技（福建）有限公司 | Seal capable of radially rotating and axially sliding |
| CN105697785A (en) * | 2016-04-18 | 2016-06-22 | 北京裕泰行新材料科技有限公司 | Symmetrical spring seal ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715069A (en) * | 2018-07-11 | 2020-01-21 | 江苏威尔迪威阀业有限公司 | Ultra-large-diameter ball valve sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180105 |
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| RJ01 | Rejection of invention patent application after publication |