CN209688240U - A kind of cryogenic valve fugacity composite filling structure - Google Patents
A kind of cryogenic valve fugacity composite filling structure Download PDFInfo
- Publication number
- CN209688240U CN209688240U CN201920418570.0U CN201920418570U CN209688240U CN 209688240 U CN209688240 U CN 209688240U CN 201920418570 U CN201920418570 U CN 201920418570U CN 209688240 U CN209688240 U CN 209688240U
- Authority
- CN
- China
- Prior art keywords
- valve
- filler
- resealing
- filling structure
- fugacity
- 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
- Lift Valve (AREA)
Abstract
A kind of cryogenic valve fugacity composite filling structure, including valve deck, valve rod are formed with clearance space, are successively arranged the first resealing, the second resealing in clearance space from the bottom up between the valve rod and the inner cavity of valve deck；First resealing is spring energy-storage sealing ring, and spring energy-storage sealing ring is mounted on first of sleeveless jacket at valve deck；Second resealing includes the V-type PCTFE filler of the upper half and the leaching asbestos PTFE filler of lower half.A kind of cryogenic valve fugacity composite filling structure provided by the utility model, good seal performance, security level are high.
Description
Technical field
The utility model relates to cryogenic valve, especially a kind of cryogenic valve fugacity composite filling structure.
Background technique
With the continuous development of science and technology and chemical industry, Subzero valve is also increasingly wider in the application of low temperature industry
It is general, also advance both at home and abroad constantly for the research work of Subzero valve at present, to meet the quick hair of modern industrialization
Exhibition.Production domesticization policy is carried out in substantial industrial equipment and key device by country now, and many low temperature projects are for domestic low temperature
The demand of valve just rises year by year, so the requirement to its security performance is also higher and higher.This requires Subzero valves to design
Airtight and watertight padding structure is carried out special designing and carries out special selection for the material of airtight and watertight padding in the process to expire
The requirement of sufficient Subzero valve leakproofness.The safe operation that just can guarantee system in this way, meet Subzero valve function, reliability and
The working condition requirement of security performance etc..It also can be reduced pollution to environment and harm and the injury to the person simultaneously, reduce
A possibility that peril occurs.Therefore very high requirement is proposed to the leakproofness of Subzero valve.
Utility model content
It is close the technical problem to be solved by the utility model is to provide a kind of cryogenic valve fugacity composite filling structure
Sealing property is good, security level is high, overcomes the problems, such as existing cryogenic valve gland leakage.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of inner cavity of cryogenic valve fugacity composite filling structure, including valve deck, valve rod, the valve rod and valve deck it
Between be formed with clearance space, the first resealing, the second resealing are successively arranged in clearance space from the bottom up；First weight is close
Envelope is spring energy-storage sealing ring, and spring energy-storage sealing ring is mounted on first of sleeveless jacket at valve deck；The second resealing packet
Include the V-type PCTFE filler of the upper half and the leaching asbestos PTFE filler of lower half.
T-type guide sleeve, V-type PCTFE filler top are equipped between the spring energy-storage sealing ring and leaching asbestos PTFE filler
Equipped with filler pressing sleeve.
The filler pressing sleeve upper end is successively arranged the first disc spring, hold-down grid, wherein hold-down grid by fastening assembly with
Valve deck connection.
The fastening assembly includes stud, nut, and the second disc spring is cased between nut and hold-down grid on stud.
A kind of cryogenic valve fugacity composite filling structure of the utility model, has following technical effect that
1), spring energy-storage sealing ring uses the innerspring high-performance sealed part of PCTFE collet, can be used for most of
A variety of occasions such as chemical fluid, the dynamic sealing of solvent and hydraulic oil, static seal, single-acting and double acting.The bullet that spring provides
Property compensation can overcome the slight eccentricity in metal combination face and seal the abrasion of lip, and persistently possess expected leakproofness
Energy.PCTFE material has the ability of excellent barrier gas, has good chemical stability and heat resistance, is suitble to -196 DEG C
Worst cold case be used for a long time.
2), using upper half installation V-type PCTFE filler+lower half installation impregnation PCTFE asbestos packing composite structure, make
For the second resealing of valve, which is suitable for the worst cold cases such as inflammable medium, density is small.
3), increase by one group of first disc spring between hold-down grid and filler pressing sleeve, after filler abrasion, due to the work of disc spring
Filler is firmly compressed again, makes its sealing.
4), increase by one group of second disc spring under fastener nut, the loose phenomenon of nut can be prevented, to make the peace of valve
Full property and practicability are more protected.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the cross-sectional view of the utility model.
In figure: valve deck 1, spring energy-storage sealing ring 2, T-type guide sleeve 3, leaching asbestos PTFE filler 4, V-type PCTFE filler 5,
Filler pressing sleeve 6, the first disc spring 7, hold-down grid 8, the second disc spring 9, stud 10, nut 11, valve rod 12.
Specific embodiment
As shown in Figure 1, a kind of cryogenic valve fugacity composite filling structure, including valve deck 1, valve rod 12, the valve rod
Clearance space is formed between 12 and the side wall of 1 inner cavity of valve deck, spring energy-storage sealing ring 2, T-type guide sleeve 3, leaching asbestos PTFE are filled out
Material 4, V-type PCTFE filler 5, filler pressing sleeve 6, disc spring 7, hold-down grid 8 sequentially pass through valve rod 12, and clearance space is filled out in completion
Plug blocks.It is affixed integral by stud 10, nut 11 between hold-down grid 8 and valve deck 1.
Clearance space is arranged in a kind of cryogenic valve encapsulating method between valve deck 1, valve rod 12, and in 1 lumen side of valve deck
Twice sleeveless jacket is set on wall, the first resealing is set at first of sleeveless jacket, second sleeveless jacket goes out the second resealing is arranged；Wherein,
First resealing uses spring energy-storage sealing ring 2, and the second resealing soaks asbestos using the V-type PCTFE filler 5 of the upper half and lower part
4 composite structure of PTFE filler is sealed.After filler abrasion, since the active force of the first disc spring compresses filler again, make it
Sealing.
Claims (4)
1. a kind of cryogenic valve fugacity composite filling structure, including valve deck (1), valve rod (12), it is characterised in that: the valve
Clearance space is formed between bar (12) and the inner cavity of valve deck (1), be successively arranged from the bottom up in clearance space the first resealing,
Second resealing；First resealing is spring energy-storage sealing ring (2), and spring energy-storage sealing ring (2) is mounted at valve deck (1)
First of sleeveless jacket on；Second resealing includes the V-type PCTFE filler (5) of the upper half and the leaching asbestos PTFE of lower half
Filler (4).
2. a kind of cryogenic valve fugacity composite filling structure according to claim 1, it is characterised in that: the spring
T-type guide sleeve (3) are equipped between accumulation of energy sealing ring (2) and leaching asbestos PTFE filler (4), V-type PCTFE filler (5) top is equipped with
Filler pressing sleeve (6).
3. a kind of cryogenic valve fugacity composite filling structure according to claim 2, it is characterised in that: the filler
Pressing sleeve (6) upper end is successively arranged the first disc spring (7), hold-down grid (8), wherein hold-down grid (8) passes through fastening assembly and valve deck
(1) it connects.
4. a kind of cryogenic valve fugacity composite filling structure according to claim 3, it is characterised in that: the fastening
Component includes stud (10), nut (11), is cased with the second disc spring between nut (11) and hold-down grid (8) on stud (10)
(9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920418570.0U CN209688240U (en) | 2019-03-29 | 2019-03-29 | A kind of cryogenic valve fugacity composite filling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920418570.0U CN209688240U (en) | 2019-03-29 | 2019-03-29 | A kind of cryogenic valve fugacity composite filling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209688240U true CN209688240U (en) | 2019-11-26 |
Family
ID=68606699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920418570.0U Active CN209688240U (en) | 2019-03-29 | 2019-03-29 | A kind of cryogenic valve fugacity composite filling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209688240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827005A (en) * | 2019-03-29 | 2019-05-31 | 湖北泰和石化设备有限公司 | A kind of cryogenic valve fugacity composite filling structure and encapsulating method |
-
2019
- 2019-03-29 CN CN201920418570.0U patent/CN209688240U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827005A (en) * | 2019-03-29 | 2019-05-31 | 湖北泰和石化设备有限公司 | A kind of cryogenic valve fugacity composite filling structure and encapsulating method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206017534U (en) | The fluid linking damper of built-in piston formula cubage compensation device | |
| CN109827005A (en) | A kind of cryogenic valve fugacity composite filling structure and encapsulating method | |
| CN108006314A (en) | Cryogenic ball valve fugacity combined stuffing structure | |
| CN209688240U (en) | A kind of cryogenic valve fugacity composite filling structure | |
| CN204628872U (en) | A kind of stepped tooth contact flange | |
| CN204284478U (en) | LNG heavy caliber cast steel stop valve | |
| CN203548984U (en) | Low-temperature ball valve | |
| CN203614767U (en) | Corrugated pipe forged steel valve | |
| CN203309238U (en) | High-temperature high-pressure spring full lift safety valve | |
| CN204628874U (en) | A kind of rectangular toe joint touch flange | |
| CN201925513U (en) | Top mounted ball valve of inner-propped compound seal forged steel | |
| CN204647338U (en) | Nuclear island Y shape adds pipe arrangement High Temperature High Pressure pressure-relief type Double-clack stop valve | |
| CN205896251U (en) | High temperature ball valve that floats sealed firmly | |
| CN104358874A (en) | High-compressibility and high-resilience sealing assembly | |
| CN208934643U (en) | A kind of PR2 grade tubing head of special construction | |
| CN204610917U (en) | Forged steel pipeline soft seal plate valve | |
| CN203686217U (en) | Fixed ball valve | |
| CN204493777U (en) | Corrosion preventive ball-valve stuffing box structure | |
| CN202520976U (en) | Non-rubber sealing valve | |
| CN206668423U (en) | A kind of cylinder head cover sealing gasket | |
| CN207112079U (en) | A kind of valve outer valve stem on-line pressure sealant fixture | |
| CN202417427U (en) | High/low temperature resistant wellhead valve | |
| CN213450621U (en) | Automobile engine metal cylinder gasket cylinder mouth rib | |
| CN206112244U (en) | Double sealing formula fracturing valve | |
| CN205504064U (en) | Soft or hard double sealing ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |