CN101900211B - Pneumatic parallel gate valve - Google Patents
Pneumatic parallel gate valve Download PDFInfo
- Publication number
- CN101900211B CN101900211B CN2010102515786A CN201010251578A CN101900211B CN 101900211 B CN101900211 B CN 101900211B CN 2010102515786 A CN2010102515786 A CN 2010102515786A CN 201010251578 A CN201010251578 A CN 201010251578A CN 101900211 B CN101900211 B CN 101900211B
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- valve
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Abstract
The invention discloses a pneumatic parallel gate valve. An upper part of a valve rod braked by a piston is connected with a display rod, a sensing plate and a connection rod in turn; the display rod is positioned in a display jacket; the sensing plate and the connection rod are positioned in the sheath; a lower end of the valve rod is connected with a gate in close contact with a valve seat; upper and lower ends of the sensing plate are respectively provided with an upper sensor and a lower sensor for sensing the closing/opening of a valve; a cylinder where the piston is arranged is positioned below the jacket; a lower end of the piston is connected with a slide sleeve sleeved with a guide sleeve; a vertical spring is connected between an outer edge of the slide sleeve and a lower cylinder cover of the cylinder; an upper cylinder cover of the cylinder is provided with a safety valve and an upper sleeve chuck bent joint connected with an air source; the lower cylinder cover of the cylinder is provided with a lower sleeve chuck bent joint connected with the air source; the upper cylinder cover and the lower cylinder cover are connected through a cylinder sleeve; an air cavity of the cylinder is communicated with an oil line; and a valve cover connected with the valve is arranged below the cylinder. The pneumatic parallel gate valve has the advantages of safe use and convenient maintenance.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of parallel slide valve through pneumatic control.
Background technique
Parallel slide valve is a kind of very widely equipment of using in the oil field operation, and is particularly essential especially in drilling well, test and underground work.At present, the mode of operation of the parallel slide valve particularly mode of operation of the above high pressure parallel slide valve of 34.5MPa mainly contains manually and surges two kinds, but the high-pressure pneumatic gate valve still belongs to blank.
Summary of the invention
The purpose of this invention is to provide a kind of Pneumatic parallel gate valve, have characteristics safe in utilization, easy to maintenance.
For realizing above-mentioned purpose, adopt following technological scheme:
A kind of Pneumatic parallel gate valve; Linked to each other with display pole, sensing plate, connecting rod successively by the valve rod top of piston deceleration; And said display pole is positioned at and shows sheath, and said sensing plate and connecting rod are positioned at sheath, and the valve rod lower end is connected with the flashboard that contacts with valve base sealing; Said sensing plate upper and lower end is respectively equipped with the upper level sensor and following level sensor of sensing valve make and break; Piston place cylinder is positioned at the sheath below, and the piston lower end is connected with the flip sleeve with the guide sleeve socket, is connected with the spring of vertical setting between the following cylinder cap of flip sleeve outer and cylinder; The upper cylinder cover of cylinder is provided with safety valve and the last cutting ferrule elbow connection that connects source of the gas, and the following cylinder cap of cylinder is provided with the following cutting ferrule elbow connection that connects source of the gas, and upper cylinder cover is connected through cylinder sleeve with following cylinder cap, and the air cavity of cylinder communicates with oil circuit; Cylinder has the valve gap that is connected with valve body.
The cemented carbide sealing surface is adopted in sealing between said flashboard and the valve seat.
Adopt the conical surface to be connected between said valve rod and the valve gap.
Said valve body lower end is provided with outage.
Said valve body adopts solid forging to form.
The present invention adopts pneumatic control, and the external pressure of upper and lower cutting ferrule elbow connection is the source gas line of 0.5-0.8MPa, valve open when descent of piston, valve closing during piston stroking upward; Being provided with of safety valve can prevent effectively that gas is raise and damage equipment by thermal pressure; Closing of valve can realize by means of the valve fluid pressure, and when not having under external air source and the valveless fluid pressure situation, built-in spring can be closed by control valve; Cylinder bottom source of the gas mouth can apply pilot pressure with throttle down when valve meets jam; Sealing surface between flashboard and the valve seat adopts cemented carbide, and wear resistance is good; Valve body lower end is provided with outage, but is detained liquid in the drain; Valve body adopts solid forging to form, and does not have any welding, and is easy to maintenance, only need open valve gap and get final product, without any need for special tool.In sum, the present invention has characteristics safe in utilization, easy to maintenance.
Description of drawings
According to embodiment and accompanying drawing the present invention is done further explain below.
Fig. 1 is the part sectional structure schematic representation of the said Pneumatic parallel gate valve of the embodiment of the invention.
Among the figure:
1, valve rod; 2, display pole; 3, sensing plate; 4, connecting rod; 5, show sheath; 6, sheath; 7, piston; 8, valve seat; 9, flashboard; 10, upper level sensor; 11, following level sensor; 12, guide sleeve; 13, flip sleeve; 14, following cylinder cap; 15, spring; 16, upper cylinder cover; 17, safety valve; 18, go up the cutting ferrule elbow connection; 19, following cutting ferrule elbow connection; 20, cylinder sleeve; 21, air cavity; 22, oil circuit; 23, valve body; 24, valve gap; 25, outage.
Embodiment
Below in conjunction with accompanying drawing, further specify the present invention through embodiment.
As shown in Figure 1; Pneumatic parallel gate valve of the present invention; Linked to each other with display pole 2, sensing plate 3, connecting rod 4 successively by valve rod 1 top of piston 7 brakings; And said display pole 2 is positioned at and shows sheath 5, and said sensing plate 3 is positioned at sheath 6 with connecting rod 4, and valve rod 1 lower end is connected with the flashboard 9 that contacts with valve seat 8 sealings; Said sensing plate 3 upper and lower end are respectively equipped with the upper level sensor 10 and following level sensor 11 of sensing valve make and break; Piston 7 place cylinders are positioned at sheath 5 belows, and piston 7 lower ends are connected with the flip sleeve 13 with guide sleeve 12 sockets, are connected with the spring 15 of vertical setting between the following cylinder cap 14 of flip sleeve 13 outers and cylinder; The upper cylinder cover 16 of cylinder is provided with safety valve 17 and the last cutting ferrule elbow connection 18 that connects source of the gas, and the following cylinder cap 14 of cylinder is provided with the following cutting ferrule elbow connection 19 that connects source of the gas, and upper cylinder cover 16 is connected through cylinder sleeve 20 with following cylinder cap 14, and the air cavity 21 of cylinder communicates with oil circuit 22; Cylinder has the valve gap 24 that is connected with valve body 23, and wherein, the cemented carbide sealing surface is adopted in the sealing between said flashboard 9 and the valve seat 8; Adopt the conical surface to be connected between said valve rod 1 and the valve gap 24; Said valve body 23 lower ends are provided with outage 25, and said valve body 23 adopts solid forgings to form, and do not have any welding.
Last cutting ferrule elbow connection 18 is the source gas line of 0.6MPa with following cutting ferrule elbow connection 19 external pressure; When last cutting ferrule elbow connection 18 places introduce pressurized air air pressure; Piston 7 moves down, and drives valve rod 1, flashboard 9 and connecting rod 4 simultaneously and moves down, and can be observed display pole 2 DL synchronizations simultaneously; When flashboard 9 moved to the bottom, the said parallel slide valve of present embodiment was in full-gear, and the last plane that can observe display pole 2 simultaneously flushes with the section of sheath 6; When valve rod 1 and connecting rod 4 move down, when driving sensing plate 3 and being moved down near level sensor 11 down, induced signal of following level sensor 11 outputs.
When last cutting ferrule elbow connection 18 was in the closes compression air pressure, the air pressure that cylinder top is born was zero, under the effect of valve fluid pressure; Driving valve rod 1, flashboard 9, connecting rod 4, sensing plate 3 and display pole 2 when piston 7 moves up moves up; When flashboard 9 moved to the top, the said parallel slide valve of present embodiment was in full-shut position, and display pole 2 reaches top; Move on near upper level sensor 10 induced signal of upper level sensor 10 outputs simultaneously on the sensing plate 3.When in the valve during no hydrodynamic pressure, compressed spring 15 can promote piston 7 and move up; When meeting the jam situation, the gas source inlet pressure at following cutting ferrule elbow connection 19 places increases gradually, overcomes jam and moves up throttle down to promote piston 7.
The said Pneumatic parallel gate valve of present embodiment in working order down; If pressurized air is increased to by thermal pressure when surpassing maximum rated pilot pressure; Safety valve 17 is opened pressure release, when pilot pressure returns to specified pilot pressure scope with after interior, safety valve 17 close and maintaining valve in specified pilot pressure; When needing repairing, only need open the just replaceable valve inner piece of valve gap 24.
Claims (5)
1. Pneumatic parallel gate valve; It is characterized in that, linked to each other with display pole, sensing plate, connecting rod successively by the valve rod top of piston deceleration, and said display pole is positioned at the demonstration sheath; Said sensing plate and connecting rod are positioned at sheath, and the valve rod lower end is connected with the flashboard that contacts with valve base sealing; Said sensing plate upper and lower end is respectively equipped with the upper level sensor and following level sensor of sensing valve make and break; Piston place cylinder is positioned at the sheath below, and the piston lower end is connected with the flip sleeve with the guide sleeve socket, is connected with the spring of vertical setting between the following cylinder cap of flip sleeve outer and cylinder; The upper cylinder cover of cylinder is provided with safety valve and the last cutting ferrule elbow connection that connects source of the gas, and the following cylinder cap of cylinder is provided with the following cutting ferrule elbow connection that connects source of the gas, and upper cylinder cover is connected through cylinder sleeve with following cylinder cap, and the air cavity of cylinder communicates with oil circuit; Cylinder has the valve gap that is connected with valve body.
2. Pneumatic parallel gate valve according to claim 1 is characterized in that, the cemented carbide sealing surface is adopted in the sealing between said flashboard and the valve seat.
3. Pneumatic parallel gate valve according to claim 1 is characterized in that, adopts the conical surface to be connected between said valve rod and the valve gap.
4. Pneumatic parallel gate valve according to claim 1 is characterized in that said valve body lower end is provided with outage.
5. according to each described Pneumatic parallel gate valve of claim 1-4, it is characterized in that said valve body adopts solid forging to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102515786A CN101900211B (en) | 2010-08-12 | 2010-08-12 | Pneumatic parallel gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102515786A CN101900211B (en) | 2010-08-12 | 2010-08-12 | Pneumatic parallel gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101900211A CN101900211A (en) | 2010-12-01 |
| CN101900211B true CN101900211B (en) | 2012-08-29 |
Family
ID=43226008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102515786A Expired - Fee Related CN101900211B (en) | 2010-08-12 | 2010-08-12 | Pneumatic parallel gate valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN101900211B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506229A (en) * | 2011-12-19 | 2012-06-20 | 上海发电设备成套设计研究院 | Indicating device for opening position of valve |
| US9032781B2 (en) * | 2012-01-30 | 2015-05-19 | Mueller International, Llc | Sensor-enabled gate valve |
| CN105240596A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Aluminum-alloy straight-stoke piston type pneumatic actuator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2646498Y (en) * | 2003-08-22 | 2004-10-06 | 什邡慧丰采油机械有限责任公司 | Petroleum/natural gas well mouth surface safety valve |
| CN2856623Y (en) * | 2005-12-20 | 2007-01-10 | 承德江钻石油机械有限责任公司 | Parallel gate valve |
| CN201502726U (en) * | 2009-09-24 | 2010-06-09 | 承德江钻石油机械有限责任公司 | Flat gate valve |
| CN201787101U (en) * | 2010-08-12 | 2011-04-06 | 承德江钻石油机械有限责任公司 | Pneumatic parallel gate valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007058251A1 (en) * | 2007-12-04 | 2009-06-10 | Apv Rosista Gmbh | Device for controlling a process valve for use in food technology |
-
2010
- 2010-08-12 CN CN2010102515786A patent/CN101900211B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2646498Y (en) * | 2003-08-22 | 2004-10-06 | 什邡慧丰采油机械有限责任公司 | Petroleum/natural gas well mouth surface safety valve |
| CN2856623Y (en) * | 2005-12-20 | 2007-01-10 | 承德江钻石油机械有限责任公司 | Parallel gate valve |
| CN201502726U (en) * | 2009-09-24 | 2010-06-09 | 承德江钻石油机械有限责任公司 | Flat gate valve |
| CN201787101U (en) * | 2010-08-12 | 2011-04-06 | 承德江钻石油机械有限责任公司 | Pneumatic parallel gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101900211A (en) | 2010-12-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20130812 |