CN201779287U - Adjusting valve with elastic metal hard sealing double-seat sleeve - Google Patents
Adjusting valve with elastic metal hard sealing double-seat sleeve Download PDFInfo
- Publication number
- CN201779287U CN201779287U CN2010202980868U CN201020298086U CN201779287U CN 201779287 U CN201779287 U CN 201779287U CN 2010202980868 U CN2010202980868 U CN 2010202980868U CN 201020298086 U CN201020298086 U CN 201020298086U CN 201779287 U CN201779287 U CN 201779287U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- metal thin
- sleeve
- seal ring
- 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
Images
Landscapes
- Lift Valve (AREA)
Abstract
An adjusting valve with elastic metal hard sealing double-seat sleeve comprises a valve body, wherein an annular valve seat is arranged on the valve body; a perpendicularly mounted valve spool matching with the valve seat is arranged on the valve seat; the valve spool is connected with a valve stem; an upper valve cover is installed on the valve body; the valve stem penetrates through the upper valve cover to be connected with the valve spool; a support is installed on the upper portion of the upper valve cover; an actuator and a positioner which are used for being connected with the valve stem and controlling travel of the valve stem are arranged on the support; and the sleeve capable of being in seal contact with the valve spool is arranged outside the valve spool. The adjusting valve with elastic metal hard sealing double-seat sleeve is characterized in that the lower portion of the valve spool is provided with a metal thin-walled elastic sealing ring capable of being in seal contact with the valve spool; the metal thin-walled elastic sealing ring is placed at the bottom of the valve seat; and the sleeve is arranged at the upper portion of the metal thin-walled elastic sealing ring. The metal thin-walled elastic sealing ring can bear certain degree of elastic deformation, therefore, the metal thin-walled elastic sealing ring can deform elastically along with the spool to be in tight fit with the valve spool under either machining stress deformation or deformation caused by changing of operating temperature.
Description
Technical field
The utility model relates to the pipeline valve technical field, concrete relates to a kind of two-seater sleeve adjusting valve that is used for industry, urban construction pipeline field.
Background technique
Two-seater is regulated the adjusting that modulating valve is widely used in industry, urban construction pipeline fluid, is characterized in compact structure, and flow is big, and adjustable extent is wide, Flow characteristics precision height, and droop loss is little.Spool is in pressure balance, and driving force is little, and dynamic stability is good, and noise is low, and cavitation corrosion is little, can control the High Pressure Difference flowing medium of high temperature, low temperature.Its shortcoming is that two sealing surfaces can not contact simultaneously, and leakage rate is big, admits of 0.1% amount of leakage.Even two sealing surface processing have contacted once in a while under the normal temperature state, but change in the change process at working temperature, because spool and sleeve-shaped are different, linear deformation is inconsistent, and sealing surface also can lose contact simultaneously.
Because the existence of amount of leakage so traditional two-seater sleeve adjusting valve just has single regulatory function, can not be had both the function of stop valve.Want to have simultaneously adjusting and end function on same pipe fitter site, must be installed in series modulating valve and stop valve could be realized its requirement.
For all complicated operating mode technology of modern industry day, harsh functional requirement and simple and convenient programmed sequence of operations reduce engineering and maintenance cost simultaneously.So valve has been proposed higher function and quality requirement.
We understand traditional metal hard-sealing two-seater sleeve adjusting valve structural type and running first.Referring to Fig. 1; As we know from the figure, the S of valve body shape medium cross runner 1 ' stage casing circular hole and above in be equipped with in the road concentric hole sleeve 2 ', sleeve 2 ' inwall has two sealing actinal surfaces, and between two sealing actinal surfaces, have several and cross communication port according to the medium that Flow characteristics requires, sleeve 2 ' interior cooperates with it have a vertical installation also have about two sealing surfaces spool 3 ', valve body 4 ' last actinal surface be equipped with bonnet 5 ', be equipped with in bonnet 5 ' upper hole stuffing box packing 6 ', to guarantee not external leakage of valve rod 7 ' locate, in addition bonnet 5 ' top be equipped with support 7 ', support 7 ' be provided with final controlling element 8 ' and positioning work piece 9 ' assembly, spool 3 ' by valve rod 7 ' traction, with final controlling element 8 ' be connected, final controlling element 8 ' linear function power under, spool 3 ' can sleeve 2 ' in for vertical movement up and down, make spool 3 ' lower sealing surface and sleeve 2 ' flow channels regulate to form the area of passage that varies in size, the special line of the flow of valve by sleeve 2 ' the setting of difformity window form, spool 3 ' the position control by positioning work piece, in opening and closing trip segment, control valve is regulated the inflow-rate of water turbine of medium along the special line of intrinsic flow well.
In this structure, sleeve 2 ' and spool 3 ' be the form of the hard sealing surface of two-seater, but in reality processing, two sealing surfaces of sleeve and spool are difficult to accomplish contact seal simultaneously.Even two sealing surface processing have contacted once in a while under the normal temperature state, but change in the change process at working temperature, because spool 3 ' different with sleeve 2 ' shape, linear deformation is inconsistent, and sealing surface also can lose contact simultaneously.Spool 3 ' with sleeve 2 ' closure after, must gappedly cause leakage.The common fault place of Here it is traditional metal hard-sealing sleeve regulating valve of two-seater.
The model utility content
Technical problem to be solved in the utility model is, overcomes problems of the prior art, provides a kind of elastic metallic to seal the two-seater sleeve adjusting valve firmly.
In order to address the above problem the technical solution of the utility model is such:
Elastic metallic seals the two-seater sleeve adjusting valve firmly, comprises a valve body, and valve body is provided with a ring-shaped valve seats, valve seat is provided with a vertically arranged spool that is mated, spool connects a valve rod, and bonnet is installed on the valve body, and valve rod passes bonnet and connects spool; Bonnet top is equipped with a support, and support is provided with and connects the also final controlling element and the positioning work piece of the control valve throw of lever; The spool outside has a sleeve that can contact with its sealing, it is characterized in that, the spool bottom has a metal thin-wall elastic seal ring that can contact with its sealing, and the metal thin-wall elastic seal ring is arranged on the valve seat bottom, and sleeve is arranged on metal thin-wall elastic seal ring top.
The inboard lower limb of metal thin-wall elastic seal ring turns up, and metal thin-wall elastic packing ring cross-section is a circular arc.
The height of metal thin-wall elastic seal ring is 5-10mm, and the wall thickness of metal thin-wall elastic seal ring is 1.2-1.5mm.
Beneficial effect, elastic metallic described in the utility model seals the two-seater sleeve adjusting valve firmly, the function that has had both single-seat adjusting valve and stop valve that it is intact: in opening and closing trip segment, the positioning control valve is regulated the inflow-rate of water turbine of medium along the special line of intrinsic flow well, the overcurrent that when closure, ends medium fully, reaching the seal leakage amount is zero, is higher than valve amount of leakage standard VI level bubble level and reveals grade.That is to say, be higher than all about the requirement of metal hard-sealing valve amount of leakage standard.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the structural representation of two-seater sleeve adjusting valve described in the prior art;
Fig. 2 seals the structural representation of two-seater sleeve adjusting valve firmly for elastic metallic described in the utility model;
Fig. 3 is the A place structure enlarged diagram of Fig. 2.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 2 and Fig. 3
Elasticity metal hard-sealing single-seat adjusting valve in the present embodiment, cross the runner stage casing at the S of valve body 1 shape medium metal thin-wall elastic seal ring 2 is installed, metal thin-wall elastic seal ring 2 is installed in valve seat 3 bottoms, the top of metal thin-wall elastic seal ring 2 is fixed by the sleeve of installing in the Zhong Dao hole 4, sleeve 4 upper inside wall have a sealing actinal surface, and they have formed the two-seater inner sealing surface.Sleeve 4 is at this up and down between two sealing actinal surfaces, have several and cross communication port according to the medium that Flow characteristics requires, what cooperate with it in the sleeve 4 has one to be vertically installed with the spool 5 of two sealing surfaces up and down, has formed two sealing pairs with sleeve 4 inner sealing surfaces and metal thin type elastic seal ring.
The last actinal surface of valve body 1 is equipped with bonnet 6, in bonnet 6 upper holes stuffing box packing 7 is housed, to guarantee not external leakage of valve rod 8 places, support 9 is equipped with on bonnet 6 tops in addition, support 9 connects final controlling element 10 and positioning work piece 11 assemblies, spool 5 is by valve rod 8 tractions, be connected with final controlling element 10, under the linear function power of final controlling element 10, spool 5 can be for vertical movement up and down in sleeve 4, make the flow channels of spool 5 lower sealing surface and sleeve 4 regulate the area of passage that formation varies in size, the special line of the flow of valve is formed by the difformity window setting of sleeve 4, the position of spool 5 is by positioning work piece 11 controls, and in opening and closing trip segment, control valve is regulated the inflow-rate of water turbine (mainly referring to Fig. 2) of medium along the special line of intrinsic flow well.
Further, metal thin-wall elastic seal ring 2 inboard lower limbs turn up, and metal thin-wall elastic seal ring 2 cross sections are circular arc.The height of metal thin-wall elastic seal ring 2 is 5-10mm, and the wall thickness of metal thin-wall elastic seal ring 2 is 1.2-1.5mm.(mainly referring to Fig. 3)
Cross the runner stage casing at the S of valve body 1 shape medium metal thin-wall elastic seal ring 2 is installed, the rigidity bottom sealing socket actinal surface that has replaced conventional sleeve 4, when two sealing surfaces of spool 5 and sleeve and metal thin-wall elastic seal ring 2 are closed, metal thin-wall elastic seal ring 2 can bear certain elastic deformation, no matter be the distortion that machining stress distortion or working temperature alternate and cause, metal thin-wall elastic seal ring 2 all can resiliently deformable keep tight applying thereupon.Formed the metal hard-sealing pair of two pairs of intact applyings.Spool 5 can keep the regulatory function of conventional sleeve valve in opening-closing process, when closure, can reach the same function by the medium overcurrent of stop valve fully.Detect through the sealing pressure testing, reach the zero leakage of bubble level, be higher than valve amount of leakage standard VI level bubble level and reveal grade.That is to say, be higher than all about the requirement of metal hard-sealing valve amount of leakage standard.Reach the dual-purpose purpose of a valve, simplified programmed sequence of operations, reduced engineering and maintenance cost.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. elastic metallic seals the two-seater sleeve adjusting valve firmly, comprises a valve body, and valve body is provided with a ring-shaped valve seats, valve seat is provided with a vertically arranged spool that is mated, spool connects a valve rod, and bonnet is installed on the valve body, and valve rod passes bonnet and connects spool; Bonnet top is equipped with a support, and support is provided with and connects the also final controlling element and the positioning work piece of the control valve throw of lever; The spool outside has a sleeve that can contact with its sealing, it is characterized in that, the spool bottom has a metal thin-wall elastic seal ring that can contact with its sealing, and the metal thin-wall elastic seal ring is arranged on the valve seat bottom, and sleeve is arranged on metal thin-wall elastic seal ring top.
2. elastic metallic according to claim 1 seals the two-seater sleeve adjusting valve firmly, it is characterized in that, the inboard lower limb of metal thin-wall elastic seal ring turns up, and metal thin-wall elastic packing ring cross-section is a circular arc.
3. elastic metallic according to claim 1 seals the two-seater sleeve adjusting valve firmly, it is characterized in that, the height of metal thin-wall elastic seal ring is 5-10mm, and the wall thickness of metal thin-wall elastic seal ring is 1.2-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202980868U CN201779287U (en) | 2010-08-19 | 2010-08-19 | Adjusting valve with elastic metal hard sealing double-seat sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202980868U CN201779287U (en) | 2010-08-19 | 2010-08-19 | Adjusting valve with elastic metal hard sealing double-seat sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779287U true CN201779287U (en) | 2011-03-30 |
Family
ID=43792498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202980868U Expired - Fee Related CN201779287U (en) | 2010-08-19 | 2010-08-19 | Adjusting valve with elastic metal hard sealing double-seat sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016839A (en) * | 2012-12-08 | 2013-04-03 | 中国航天科技集团公司第六研究院第十一研究所 | Elastic thin-wall valve seat for big-flow high-pressure valve |
| CN113028105A (en) * | 2016-10-24 | 2021-06-25 | 芙罗服务管理公司 | Valve assembly and method of providing a seal in a valve |
-
2010
- 2010-08-19 CN CN2010202980868U patent/CN201779287U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016839A (en) * | 2012-12-08 | 2013-04-03 | 中国航天科技集团公司第六研究院第十一研究所 | Elastic thin-wall valve seat for big-flow high-pressure valve |
| CN113028105A (en) * | 2016-10-24 | 2021-06-25 | 芙罗服务管理公司 | Valve assembly and method of providing a seal in a valve |
| CN113028105B (en) * | 2016-10-24 | 2023-07-28 | 芙罗服务管理公司 | Valve assembly and method of providing a seal in a valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102705286B (en) | Balanced high-pressure large-current AC (Alternating Current) servo direct-driven cartridge valve | |
| CN204942717U (en) | Diaphragm stop valve | |
| CN101813192B (en) | High-flow adjustable ratio control valve | |
| CN201779287U (en) | Adjusting valve with elastic metal hard sealing double-seat sleeve | |
| CN101504078A (en) | Screw-in forged high pressure cage type balanced regulation cut-off corner valve | |
| CN205578885U (en) | Miniature flow regulating valve | |
| CN201779283U (en) | Elastic metal hard sealing single-seat control valve | |
| CN210623581U (en) | Stop valve | |
| CN201496609U (en) | Pilot-operated type hard-seal fixed ball valve | |
| CN209604583U (en) | A kind of gate valve | |
| CN204083264U (en) | A kind of piston is as the single-seat adjusting valve of balancing component | |
| CN203488723U (en) | Fluid stop valve | |
| CN210318636U (en) | Three-way control valve | |
| CN203926818U (en) | Quiescent flow equilibrium valve | |
| CN214662167U (en) | Pneumatic oxygen flow regulating valve | |
| CN205715946U (en) | A kind of water pipeline regulation valve | |
| CN204878847U (en) | Three -way control valve convenient to maintenance disk seat | |
| CN221054314U (en) | Stainless steel seal assembly of regulating valve | |
| CN104390049A (en) | Anticorrosion stuffing seal structure | |
| CN215806318U (en) | Double-sealing stop valve | |
| CN204153162U (en) | High pressure operating mode can constant voltage open stop valve | |
| CN203176376U (en) | Multi-level sealing stop valve | |
| CN203718077U (en) | Piston type balance valve | |
| CN211779048U (en) | Balanced type valve core and three-way control valve | |
| CN201636351U (en) | Large-flow adjustable ratio control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20160819 |