CN208041146U - Band metal coating type balanced seal annular sleeve valve - Google Patents
Band metal coating type balanced seal annular sleeve valve Download PDFInfo
- Publication number
- CN208041146U CN208041146U CN201820249703.1U CN201820249703U CN208041146U CN 208041146 U CN208041146 U CN 208041146U CN 201820249703 U CN201820249703 U CN 201820249703U CN 208041146 U CN208041146 U CN 208041146U
- Authority
- CN
- China
- Prior art keywords
- valve
- sleeve
- spool
- coating type
- metal coating
- 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.)
- Active
Links
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model provides a kind of metal coating type balanced seal annular sleeve valve, the metal coating type balanced seal annular sleeve valve includes valve body, spool and valve deck, influent stream chamber and outflow lumen are offered in the valve body, it is connected to by restriction between the influent stream chamber and outflow lumen, sleeve is equipped in valve body at restriction position, the inner wall of the sleeve surrounds to form throttling chamber, the throttling chamber is connected to restriction, the spool is located in sleeve, and the peripheral surface of spool is equipped with a circle metal-coated graphite sealing ring；The valve deck is mounted on valve body, and one end of valve rod is connected on spool, and the other end is pierced by valve deck upper end.The metal coating type balanced seal annular sleeve valve can bear high temperature and pressure, meet the operating mode of V grade of class requirement of leakage or more.
Description
Technical field
The utility model is related to control valve for fluids technical fields, and in particular to one kind can bear high temperature and pressure, leakage etc.
Grade requires V grade or more of band metal coating type balanced seal annular sleeve valve.
Background technology
Sleeve adjusting valve needed for, reliable, the adjustment curve diversification that operates steadily high with degree of regulation, executing agency because pushing away
Power is small, can bear the features such as higher operting differential pressure is widely used.In necks such as chemical industry, oil refining, metallurgy, electric power, coal chemical industries
In domain, many sleeve adjusting valves will meet V grade or V grade or more and seal class requirement.Existing sleeve adjusting valve seal form master
Will there are two types of, one kind be upper and lower double-valve-seat hard sealing structure, another kind be filled glass fiber PTFE seal match single valve seat it is hard
Sealing structure.
In conventional structure, upper and lower double-valve-seat hard sealing structure needs to reach ideal sealing effect, valve seat and valve
Sealing surface is needed by machining repair and underhand polish.First, repair and underhand polish technique are machined for operating personnel
Processing skills and experience it is more demanding；Secondly, although can meet leakage class by machining repair and underhand polish and reach
To V grade or V grade or more, but the success rate once assembled only has 50%, result in sealing surface need repeat machining repair and
Underhand polish, lost labor are low with time cost, product interchangeability.It is hard for filled glass fiber PTFE seal matching single valve seat
Sealing structure, sealing surface is after machining and underhand polish, its performance can meet V grade or V grade or more and leak substantially
Grade, but in high temperature（≥250℃）In work condition environment, PTFE performances decline obviously, and aging aggravation cannot be satisfied design requirement
（V grade or V grade of leakage class or more）, influence client's production and operation and product quality.
Invention content
Utility model aims to solve the deficiencies in the prior art, and high temperature can be born to provide one kind
High pressure, the band metal coating type balanced seal annular sleeve valve of V grade of class requirement of leakage or more.
According to technical solution provided by the utility model, a kind of metal coating type balanced seal annular sleeve valve, the gold
It includes valve body, spool and valve deck to belong to clad type balanced seal annular sleeve valve, and influent stream chamber and outflow lumen are offered in the valve body,
It is connected to by restriction between the influent stream chamber and outflow lumen, sleeve is equipped in the valve body at restriction position, the sleeve
Inner wall surrounds to form throttling chamber, and the throttling chamber is connected to restriction, and the spool is located in sleeve, is set on the peripheral surface of spool
There is a circle metal-coated graphite sealing ring；The valve deck is mounted on valve body, and one end of valve rod is connected on spool, and the other end is worn
Go out valve deck upper end.
Further, the metal-coated graphite sealing ring is fitted closely with sleeve lining, and seal ring seat is covered described
On metal-coated graphite sealing ring.
Further, valve seat is installed on the valve body at the restriction peripheral position, the sleeve is set on valve seat.
Further, spool bottom end peripheral region forms a circle fillet surface, and the internal diameter of the valve seat is less than described
The internal diameter of sleeve.
Further, the periphery of the restriction is equipped with graphite Composition spacer, and the valve seat is arranged in graphite Composition spacer
On.
Further, pilot bushing is set on valve deck, and the valve rod passes through pilot bushing.
Further, filler assembly is installed between the valve deck top and valve rod.
Band metal coating type balanced seal annular sleeve valve provided by the utility model is can be seen that from the above, with
The prior art, which is compared, has following advantages：
（1）This is simple in structure, and reliable for operation, each parts interchangeability is stronger, improves the economic benefit of user.
（2）Since spool uses single valve seat hard sealing structure, spool and valve seat need not by repeatedly machine repair and
Underhand polish can reach V grade or V grade or more leakage class, improve efficiency.
（3）Metal-coated graphite sealing ring is coated using austenitic stainless steel and is designed, and is prevented due to sleeve is with spool gap
Cause graphite-seal ring occur pressure dissipate, not resistance to erosion, extend service life；Its material is graphite and austenite stainless simultaneously
Steel can operate with medium temperature in subzero 29 DEG C to 800 DEG C of operating mode, and use scope is wider.
（4）There are gap between spool and seal ring seat outer diameter and sleeve lining, ensure that spool will not because of high temperature and
With sleeve locking；Valve stem top navigation designing improves the dynamic stability of spool, avoids spool and is produced because of washing away for medium
The generation for phenomena such as raw concussion leads to poor valve stem crack, regulation performance, noise.
（5）Sleeve lining uses inner circle ground finish technique, improves the finish of inner wall, extends metal-coated graphite
The service life of sealing ring.
（6）Trip bolt is adjustable, and gasket is anti-loosing type gasket, can meet different working temperatures for material heat expansion rate
Influence, meet leakage grade requirement.
（7）Valve seat increases lifting threaded hole, facilitates the installation and dismounting of valve.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the enlarged diagram of part A in Fig. 1.
1. valve body, 110. influent stream chambers, 120. outflow lumens, 130. restrictions, 2. valve seats, 3. graphite Composition spacers, 4. sleeves,
410. throttling chambers, 5. spools, 6. metal-coated graphite sealing rings, 7. trip bolts, 8. seal ring seats, 9. valve decks, 10. are oriented to lining
Set, 11. valve rods, 12. filler assemblies.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with specific embodiment, and
With reference to attached drawing, the utility model is further described.Wherein identical parts are presented with like reference characters.It needs
Illustrate, word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to the side in attached drawing
To.The word "inner" used and "outside" refer respectively to the direction towards or away from geometric center of specific component.
As depicted in figs. 1 and 2, the utility model provides a kind of metal coating type balanced seal annular sleeve valve, the gold
It includes valve body 1, spool 5 and valve deck 9 to belong to clad type balanced seal annular sleeve valve, and 110 He of influent stream chamber is offered in the valve body 1
Outflow lumen 120 is connected between the influent stream chamber 110 and outflow lumen 120 by restriction 130, at 130 peripheral position of restriction
It states and is equipped with sleeve 4 in valve body 1, the inner wall of the sleeve 4 surrounds to form throttling chamber 410, the throttling chamber 410 and restriction 130
Connection, and the sleeve 4 is connected to influent stream chamber 110 and outflow lumen 120, the spool 5 are located in sleeve 4, it can be along sleeve 4
Inner wall moves, and the valve deck 9 is mounted on valve body 1, and the threaded one end of valve rod 11 is connected on spool 5, and the other end is pierced by valve deck 9
Upper end, the valve rod 11 can be moved with movable valve plug 5 along throttling chamber 410.The peripheral surface of the spool 5 is equipped with a circle metal
Coated graphite sealing ring 6, and metal-coated graphite sealing ring 6 is fitted closely with 4 inner wall of sleeve.Seal ring seat 8 is covered in institute
It states on metal-coated graphite sealing ring 6, the seal ring seat 8 is anti-loosing type structure, and trip bolt is provided in seal ring seat 8
7, it is screwed by the screw thread of trip bolt 7 to reach the installation of spool 5, metal-coated graphite sealing ring 6,8 three of seal ring seat
Fixed, metal-coated graphite sealing ring 6 is screwed by 7 screw thread of trip bolt, makes metal-coated graphite sealing ring 6 in the axial direction
A degree of compression is produced, radial dimension of variation is promoted, has reached the desirable seal fitted closely with 4 inner wall of sleeve
Effect prevents fluid from 120 overflow of outflow lumen.
Valve seat 2 is provided on valve body 1 at 130 peripheral position of the restriction, the sleeve 4 is set on valve seat 2, institute
Throttling action can be played by stating valve seat 2 and the cooperation of spool 5.
In order to improve the sealing function of valve seat 2,5 bottom end peripheral region of the spool forms a circle fillet surface, and the valve
The internal diameter of seat 2 is less than the internal diameter of the sleeve 4 so that when spool 5 moves down, the fillet surface can be in spool 5 to moving down
Guiding role is played when dynamic, prevents 5 locking of spool.Also, in order to further prevent 5 locking of spool, the spool 5 and sleeve 4
Between be formed with gap.
The periphery of the restriction 130 is equipped with graphite Composition spacer 3, and the valve seat 2 is arranged on graphite Composition spacer 3.
Spool 5, which generates concussion because of washing away for fluid, in order to prevent causes the fracture of valve rod 11, the poor, noise of regulation performance etc. existing
The generation of elephant, is arranged pilot bushing 10 on valve deck 9, and the valve rod 11 passes through pilot bushing 10.
In order to further prevent fluid from being filled out from the gap between 9 overflow of valve deck, the top and valve rod 11 of the valve deck 9
It is plugged with filler assembly 12.
The utility model has the advantage of：First, sleeve 4 can play guiding role to the movement of spool 5 so that spool
5 can accurately block restriction 130, to improve throttle efficiency.
Second, the metal-coated graphite sealing ring 6 on the peripheral surface of spool 5 can improve the sealing of the utility model
Throttling action.
Third, the seal ring seat 8 being fastened on metal-coated graphite sealing ring 6 applies metal-coated graphite sealing ring 6
There is axial pressure so that the radial dimension of metal-coated graphite sealing ring 6 changes, so as to be close to 4 inner wall of sleeve,
Improve sealing performance.
Those of ordinary skills in the art should understand that：The foregoing is merely specific embodiment of the utility model
, it is not intended to limit the utility model, all any modifications within the purport of the utility model, made, change equivalent replacement
Into etc., it should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of metal coating type balanced seal annular sleeve valve, which is characterized in that the metal coating type balanced seal is ring-like
Telescoping valve includes valve body（1）, spool（5）And valve deck（9）, the valve body（1）In offer influent stream chamber（110）And outflow lumen
（120）, the influent stream chamber（110）And outflow lumen（120）Between pass through restriction（130）Connection, restriction（130）At position
Valve body（1）In be equipped with sleeve（4）, the sleeve（4）Inner wall surround to form throttling chamber（410）, the throttling chamber（410）With section
Head piece（130）Connection, the spool（5）It is located at sleeve（4）In, spool（5）Peripheral surface be equipped with one circle metal-coated graphite
Sealing ring（6）；The valve deck（9）Mounted on valve body（1）On, valve rod（11）One end be connected to spool（5）On, the other end is pierced by
Valve deck（9）Upper end.
2. metal coating type balanced seal annular sleeve valve as described in claim 1, which is characterized in that the metal-coated graphite
Sealing ring（6）With sleeve（4）Inner wall fits closely, seal ring seat（8）It covers in the metal-coated graphite sealing ring（6）On.
3. metal coating type balanced seal annular sleeve valve as described in claim 1, which is characterized in that the restriction（130）
Valve body at peripheral position（1）On valve seat is installed（2）, the sleeve（4）It is set to valve seat（2）On.
4. metal coating type balanced seal annular sleeve valve as claimed in claim 3, which is characterized in that the spool（5）Bottom end
Peripheral region forms a circle fillet surface, and the valve seat（2）Internal diameter be less than the sleeve（4）Internal diameter.
5. metal coating type balanced seal annular sleeve valve as claimed in claim 3, which is characterized in that the restriction（130）
Periphery be equipped with graphite Composition spacer（3）, the valve seat（2）It is arranged in graphite Composition spacer（3）On.
6. metal coating type balanced seal annular sleeve valve as described in claim 1, which is characterized in that in valve deck（9）Upper setting
Pilot bushing（10）, the valve rod（11）Across pilot bushing（10）.
7. metal coating type balanced seal annular sleeve valve as described in claim 1, which is characterized in that the valve deck（9）Top
With valve rod（11）Between filler assembly is installed（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249703.1U CN208041146U (en) | 2018-02-12 | 2018-02-12 | Band metal coating type balanced seal annular sleeve valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249703.1U CN208041146U (en) | 2018-02-12 | 2018-02-12 | Band metal coating type balanced seal annular sleeve valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041146U true CN208041146U (en) | 2018-11-02 |
Family
ID=63952971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820249703.1U Active CN208041146U (en) | 2018-02-12 | 2018-02-12 | Band metal coating type balanced seal annular sleeve valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167452A (en) * | 2018-02-12 | 2018-06-15 | 无锡智能自控工程股份有限公司 | Band metal coating type balanced seal annular sleeve valve |
-
2018
- 2018-02-12 CN CN201820249703.1U patent/CN208041146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167452A (en) * | 2018-02-12 | 2018-06-15 | 无锡智能自控工程股份有限公司 | Band metal coating type balanced seal annular sleeve valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103244748A (en) | Anti-air-erosion dewatering regulating valve | |
| CN103147718B (en) | 20000psi cage type throttling valve | |
| CN208041146U (en) | Band metal coating type balanced seal annular sleeve valve | |
| CN108150656A (en) | Type pilot string data adjusts stop valve | |
| CN104676098A (en) | Labyrinth type multistage decompression anti-cavitation regulating ball valve | |
| CN103527799A (en) | High-pressure adjusting valve | |
| CN202971976U (en) | Double-orientation maze type high pressure difference adjustment control valve | |
| CN102943909A (en) | Differential type water hydraulic relief valve | |
| CN104455585A (en) | Ultralow-temperature axial-flow type check valve | |
| US2514025A (en) | Microchoke valve | |
| CN103047437A (en) | Double-orientation maze type high pressure difference adjusting control valve | |
| CN208041147U (en) | Type pilot string data adjusts stop valve | |
| CN203082224U (en) | Axial flow sleeve regulating valve | |
| CN108167452A (en) | Band metal coating type balanced seal annular sleeve valve | |
| CN105715621A (en) | Direct relief valve with guide structure | |
| CN103090019A (en) | Regulating valve of axial flow sleeve | |
| CN203703150U (en) | Dual-seal right-angle throttling valve | |
| CN207514311U (en) | A kind of check-valves for being easily changed valve seat | |
| CN203146864U (en) | Hydraulically closed flat valve | |
| CN203082219U (en) | Depressurization regulating valve for liquid oxygen pump backflow | |
| CN209743637U (en) | high-pressure angle type throttle valve | |
| CN203879832U (en) | Pure water hydraulic throttle valve | |
| CN204533795U (en) | Labyrinth type multilevel decompression cavitation-preventive regulates ball valve | |
| CN205715709U (en) | Iris type multilamellar sleeve adjusting valve | |
| CN205781330U (en) | A kind of single-seat valve of effective reduction noise |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |