CN1078329C - Coaxial double-sealing base-plate valve - Google Patents
Coaxial double-sealing base-plate valve Download PDFInfo
- Publication number
- CN1078329C CN1078329C CN96116278A CN96116278A CN1078329C CN 1078329 C CN1078329 C CN 1078329C CN 96116278 A CN96116278 A CN 96116278A CN 96116278 A CN96116278 A CN 96116278A CN 1078329 C CN1078329 C CN 1078329C
- Authority
- CN
- China
- Prior art keywords
- valve
- coaxial double
- piston rod
- seal ring
- rod
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 7
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Images
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The present invention relates to a coaxial type double-seal seat plate valve which is composed of a valve gate A and a control cylinder B. The present invention is characterized in that secondary seal is adopted to enhance sealing reliability, a piston rod 7 replaces a traditional valve rod, and an intermediate ring loop and a connecting piece thereof are saved; therefore, structure is simplified, coaxiality is enhanced, structure height and manufacturing cost are reduced, and the sealing reliability is further improved. The valve which is suitable for chemical industry, pharmacies and oil refineries can replace common seat plate valves, slide valves, etc.
Description
The present invention relates to fluid flow control, the especially control of chemical industry solutions volume flowrate and detection.
In the chemical process, various fluids are done periodic motion more continuously.In order to guarantee that fluid motion (comprises the strictness control of fluid flow and direction, the sealing reliability of height) in order, pipeline valve is essential and most important, and especially to having the fluid of corrosivity, danger, its significance is just more outstanding.In chemical plant, pharmaceutical factory, oil refinery, valve commonly used has seat to pull valve, throughway valve, stop valve etc.
Generally, form by two big parts with this type of valve member: the one, valve is realized the conducting of fluid or is ended, the 2nd, controller is in order to guarantee the valve opening size.
Valve is a conventional structure, and its valve seat inner edge is cone-shaped, cooperates with the valve gap corresponding surface, and by the two extruding seal ring therebetween, can finish the sealing of valve seat and valve gap, guarantees the unlikely leakage of liquid.Valve rod one end has valve gap, and the other end links indirectly by middle ring and piston rod.Hydraulic pressure (pneumatic) piston drives piston rod and moves, and the valve gap that also promptly links is with this control valve aperture size.
Because the valve port place adopts single (1) level seal ring, seal not too reliably, year in and year out, natural leak jeopardizes solution ratio, reduction " product " quality.During valve opening, valve rod is in the flow of solution, can't lubricate, and is easy to wearing and tearing, causes that solution leaks.Because ring in the middle of existing, the coaxality of valve rod and piston just is difficult to abundant assurance, the reduction sealing reliability, and make complex structure, structure height increases, thereby increases manufacture cost, installs with use also inconvenient.
At above-mentioned deficiency, the invention provides a kind of coaxial double-sealing seat and pull valve, pull valve, gate valve etc. in order to replace existing common seat.
The present invention is achieved in that the middle ring of cancellation, and piston rod and valve rod are made one, keeps coaxial.Valve bonnet seal changes multistage combination into by one-level, realizes forward and reverse secondary seal.On cylinder body, set up the valve position detection device.The three cooperates can constitute coaxial double-sealing base-plate valve.
Piston rod and valve rod are made one, replace valve rod with piston rod in fact exactly, make designs simplification, and whole height reduces, and helps manufacturing, convenient again use, installation.After adopting multistage combination seal, valve gap can be realized forward and reverse secondary seal, and the also unlikely leakage of long-term use guarantees that solution ratio is accurate.After setting up the valve position detection device, can improve the operation intuitive, for safety in production, automatic control are provided convenience.
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 assembles schematic representation for the present invention.
This valve is made up of valve A and control cylinder B.
The sealing of valve A is cooperatively interacted by valve seat 1 and valve gap 4 and to finish.1 one-tenth ring shape of valve seat, on the conical surface, cylindrical structure are arranged, and with valve gap 4 corresponding surface close fit.Reliable in order to seal, on valve gap 4 corresponding surfaces, be provided with planar seal ring 3 and radial direction seal ring 2, constitute secondary seal thus.Valve gap 4 and cooperation place, piston rod 7 lower end do not have radial direction seal ring 6 yet, and be reliable to guarantee sealing, prevents internal and outernal leakage.
Piston rod 7 upper ends and cylinder cap 8 cooperation places are provided with radial direction seal ring 9 equally.Installing planar seal ring 5 in plane is fitted (during the valve maximum opening) well with cylinder cap 8 lower planes on the valve gap 4, also constitutes secondary seal thus, can prevent that fluid from infiltrating among the control cylinder B.
Control cylinder B by cylinder body 11 (bring into outlet a), piston 10, cylinder cap 8 (bringing outlet b into) and piston rod 7 form, adopt hydraulic pressure or pneumatic all can, the genus conventional structure.Its characteristics are: piston rod 7 upper and lower end have piston 10 and valve gap 4 respectively, to keep the three-in-one, coaxial operation.Piston rod 7 effective length L depend on the aperture size of valve port C.
Piston rod 7 replaces valve rod, directly on valve gap 4, saves middle ring and link thereof, and simplified structure reduces overall height, helps body of rod self-lubrication, improves coaxality, thereby the raising sealing reliability that increases the service life.
In order to guarantee that valve port C opens and closes in time, aperture is reliable, sets up valve position detection device 12 on cylinder cap 8.When valve gap 4 contact detectors 12, cause sound and light signal.This is for detecting valve gap 4 positions, and control flow rate and automatic production provide necessary condition.
Claims (2)
1, a kind of coaxial double-sealing base-plate valve, form by valve A and control cylinder B, it is characterized in that: piston rod 7 upper and lower end are associated with piston 10 and valve gap 4 respectively, its effective length L depends on the aperture size of valve port C, and on valve seat 1 and valve gap 4 corresponding surfaces, be provided with planar seal ring 3 and radial direction seal ring 2, installing planar seal ring 5 in plane is fitted with cylinder cap 8 lower planes on the valve gap 4.
2, the described coaxial double-sealing seat of claim 1 is pulled valve, it is characterized in that: set up valve position detection device 12 on the cylinder cap 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116278A CN1078329C (en) | 1996-03-12 | 1996-03-12 | Coaxial double-sealing base-plate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116278A CN1078329C (en) | 1996-03-12 | 1996-03-12 | Coaxial double-sealing base-plate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1159524A CN1159524A (en) | 1997-09-17 |
| CN1078329C true CN1078329C (en) | 2002-01-23 |
Family
ID=5123397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96116278A Expired - Fee Related CN1078329C (en) | 1996-03-12 | 1996-03-12 | Coaxial double-sealing base-plate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1078329C (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0021057A1 (en) * | 1979-05-28 | 1981-01-07 | Klinger AG | Stop valve |
| JPS6281021A (en) * | 1985-10-04 | 1987-04-14 | Fuji Electric Co Ltd | Thin film semiconductor manufacturing equipment |
| CN1037955A (en) * | 1988-05-24 | 1989-12-13 | 吕秋来 | Double-sealed stop valve |
| US4923173A (en) * | 1989-10-30 | 1990-05-08 | Vilter Manufacturing Corporation | Seating seal means for disc-type valve |
| EP0399625A1 (en) * | 1986-05-16 | 1990-11-28 | Nupro Company | Valve |
| CN2169741Y (en) * | 1993-06-25 | 1994-06-22 | 大丰县煤气调压器厂 | double-sealing gas special valve |
| CN2169740Y (en) * | 1993-04-17 | 1994-06-22 | 徐特强 | Power saving mass flow switch valve without leakage |
-
1996
- 1996-03-12 CN CN96116278A patent/CN1078329C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0021057A1 (en) * | 1979-05-28 | 1981-01-07 | Klinger AG | Stop valve |
| JPS6281021A (en) * | 1985-10-04 | 1987-04-14 | Fuji Electric Co Ltd | Thin film semiconductor manufacturing equipment |
| EP0399625A1 (en) * | 1986-05-16 | 1990-11-28 | Nupro Company | Valve |
| CN1037955A (en) * | 1988-05-24 | 1989-12-13 | 吕秋来 | Double-sealed stop valve |
| US4923173A (en) * | 1989-10-30 | 1990-05-08 | Vilter Manufacturing Corporation | Seating seal means for disc-type valve |
| CN2169740Y (en) * | 1993-04-17 | 1994-06-22 | 徐特强 | Power saving mass flow switch valve without leakage |
| CN2169741Y (en) * | 1993-06-25 | 1994-06-22 | 大丰县煤气调压器厂 | double-sealing gas special valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1159524A (en) | 1997-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117432813B (en) | Spring type multi-stage throttling emptying valve | |
| CN111981155A (en) | Forced double-shutoff friction-free upper-mounted ball valve | |
| CN1690487A (en) | Flow regulating valve with flow state indicating unit especially adaptable for gas container | |
| CN201875184U (en) | Vacuum ball valve with fluorine liner | |
| CN1078329C (en) | Coaxial double-sealing base-plate valve | |
| CN205780952U (en) | Split type sleeve control valve | |
| CN115854037A (en) | Industrial valve | |
| CN114738507A (en) | Prevent leaking gate valve with double partition valve plate | |
| CN221097681U (en) | Plug valve capable of detecting fluid density | |
| CN2775430Y (en) | Check valve with flow direction indication | |
| CN217328521U (en) | A manual high pressure valve | |
| CN2336140Y (en) | Durable stop valve | |
| CN2540537Y (en) | Inner balance oxygen stop valve | |
| CN2854294Y (en) | Oil sight device with protection cover | |
| CN2325603Y (en) | Valve for controlling pressure guage | |
| CN2223392Y (en) | Internal driving on-off quantity control valve | |
| CN2346927Y (en) | Producing well technical combined valve | |
| CN220060555U (en) | Pipe force valve with opening indication | |
| CN2929377Y (en) | Vacuum butterfly valve | |
| CN220523369U (en) | Water inlet valve for wafer cleaning mechanism | |
| CN200947047Y (en) | An anti-theft water device used in conjunction with a water meter | |
| CN219841127U (en) | High-temperature-resistant high-pressure-gas liquid manual switch valve | |
| CN218063410U (en) | Right-angle stop valve | |
| CN2460810Y (en) | Full-sealed no-leakage multipurpose valve | |
| CN221323333U (en) | Backflow-preventing pneumatic stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |