CN206889683U - Corrosion-resistant whole lining stop valve - Google Patents
Corrosion-resistant whole lining stop valve Download PDFInfo
- Publication number
- CN206889683U CN206889683U CN201720604855.4U CN201720604855U CN206889683U CN 206889683 U CN206889683 U CN 206889683U CN 201720604855 U CN201720604855 U CN 201720604855U CN 206889683 U CN206889683 U CN 206889683U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve seat
- bonnet
- shaped step
- 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
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- Lift Valve (AREA)
- Taps Or Cocks (AREA)
Abstract
Corrosion-resistant whole lining stop valve, it is related to a kind of valve.Including valve body, flap, bonnet, valve rod and handwheel, the upper end of valve body is connected with bonnet, valve seat is provided with valve body, flap is equipped with valve seat, the lower end connection flap of valve rod, upper end is upward through bonnet connection handwheel, the contact surface of flap and valve seat is the Z-shaped step to cooperate, the vertical inward-facing inclination of the Z-shaped step of flap and valve seat is oblique, the leave from office terrace of the Z-shaped step of flap and valve seat mutually contradicts to form the first sealing pair, the vertical plane of the Z-shaped step of flap and valve seat is bonded to each other to form the second sealing pair, the terrace of appearing on the stage of the Z-shaped step of flap and valve seat mutually contradicts to form the 3rd sealing pair.The contact surface of flap and valve seat is the Z-shaped step to cooperate, and the vertical inward-facing inclination of Z-shaped step is oblique, and three seals pair is formed between flap and the Z-shaped step of valve seat, ensures sealing property good between flap and valve seat, prevents the possible generation of dielectric leakage.
Description
Technical field
It the utility model is related to a kind of valve, specially a kind of corrosion-resistant whole lining stop valve for chemical industry.
Background technology
At present, known common valve is made up of critical pieces such as valve body, bonnet, flap, valve rod, nuts, each part material
Material is not general corrosion-resistant.Such common valve, when being used to convey severe corrosive, poisonous medium, with medium contact site pole
Easily corrode and leak, so as to endanger life safety and safety of surrounding environment.
Utility model content
The purpose of this utility model is to provide a kind of good seal performance, corrosion-resistant, and securely and reliably, non-maintaining is corrosion-resistant complete
Lining stop valve.
Realizing the technical scheme of above-mentioned purpose is：Corrosion-resistant whole lining stop valve, including valve body, flap, bonnet, valve rod and hand
Wheel, valve body are provided at both ends with flange, and the upper end of valve body is connected with bonnet, is provided with valve seat in valve body, flap is equipped with
On valve seat, the lower end connection flap of the valve rod, upper end are upward through bonnet connection handwheel, are set between the valve rod and bonnet
There is sealing device, it is characterised in that：The contact surface of flap and valve seat is the Z-shaped step that cooperates, Z-shaped of flap and valve seat
The vertical inward-facing inclination of rank is oblique, and the leave from office terrace of the Z-shaped step of flap and valve seat mutually contradicts to form the first sealing pair, flap
It is bonded to each other to form the second sealing pair with the vertical plane of the Z-shaped step of valve seat, the terrace phase of appearing on the stage of the Z-shaped step of flap and valve seat
Mutually contradict and form the 3rd sealing pair.
Further, the Z-shaped step vertical plane of the valve seat is provided with multiple-sealed groove ring week, is set respectively in seal groove
It is equipped with sealing ring.
Further, the upper surface of the flap is provided with a circle low ball shape boss and the high spherical boss of a circle, works as stop valve
During in open mode, the lower surface of low ball shape boss, high spherical boss and bonnet, which is matched somebody with somebody, is combined into sealing pair.So that bonnet and valve
First of sealing, and the sealing structure maintenance-free are formed between bar.
Further, the sealing device is the V-type polytetrafluoroethylcombination combination insertion ring being arranged between bonnet and valve rod,
Gland is provided with the upper end of V-type polytetrafluoroethylcombination combination insertion ring, gland is bolted to connection with bonnet, made
Obtain and second sealing is formed between bonnet and valve rod, be further ensured that the zero leakage of medium, it is resistance to strong rotten, it is non-maintaining.
Further, the inner surface of valve body, the outer surface of flap, the inner surface of bonnet, the outer surface of valve rod and valve body
The outer surface of flange is respectively equipped with anticorrosive coat, improves the antiseptic property and safe application performance of stop valve, increases the service life.
Further, the anticorrosive coat is polytetrafluoroethylene (PTFE), and polytetrafluoroethylene (PTFE) is to most of chemicals and solvent, performance
Go out inertia, energy strong alkali-acid resistance, water and various organic solvents, there is excellent corrosion resistance；But its coefficient of friction is relatively low,
So the epoxy resin layer set between polytetrafluoroethylene (PTFE) skid resistant course, the raising frictional force that epoxy resin layer can be appropriate, and
The contact feel of stop valve inwall can be enriched.
The beneficial effects of the utility model：
The contact surface of flap and valve seat is the Z-shaped step to cooperate, and the vertical inward-facing inclination of Z-shaped step is oblique, flap
Three seals pair is formed between the Z-shaped step of valve seat, ensures sealing property good between flap and valve seat, prevents medium and let out
Leak possible generation.
The lower surface of the low ball shape boss of the upper surface of flap, high spherical boss and bonnet, which is matched somebody with somebody, is combined into the first sealing pair,
Sealing device is provided between valve rod and bonnet and forms the second sealing pair, ensures the reliable sealing between valve rod and bonnet.
The inner surface of valve body, the outer surface of flap, the inner surface of bonnet, the outer surface of valve rod and valve flange side it is outer
Surface is respectively equipped with anticorrosive coat, improves the antiseptic property and safe application performance of stop valve.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged drawing in A portions in Fig. 1.
Embodiment
As shown in Figure 1, 2, the utility model includes valve body 1, flap 2, bonnet 3, valve rod 4 and handwheel 5, the both ends of valve body 1
Flange 1-1 is provided with, the upper end of valve body 1 is connected with bonnet 3, valve seat 6 is set in valve body 1, and flap 2 is equipped with valve seat 6,
The lower end connection flap 2 of valve rod 4, upper end are upward through bonnet 3 and connect handwheel 5, and sealing dress is provided between valve rod 4 and bonnet 3
7 are put, sealing device 7 includes the V-type polytetrafluoroethylcombination combination insertion ring 7-1 being arranged between bonnet 3 and valve rod 4, in V-type poly- four
PVF combined stuffing circle 7-1 upper end is provided with gland 7-2, and gland 7-2 is bolted to connection with bonnet 3.
The contact surface of flap 2 and valve seat 6 is the Z-shaped step 8 that cooperates, the Z-shaped step 7 of flap 2 and valve seat 6 it is vertical
Face 8-1 inwardly rolls oblique so that flap 2 successfully can coordinate downwards on valve seat 6.
The leave from office terrace 8-2 of the Z-shaped step 8 of flap 2 and valve seat 6 mutually contradicts to form the first sealing pair, flap 2 and valve seat
The vertical plane 8-1 of 6 Z-shaped step 8 is bonded to each other to form the second sealing pair, the terrace of appearing on the stage of the Z-shaped step 8 of flap 2 and valve seat 6
8-3 is mutually contradicted to form the 3rd sealing pair, and 3 are formed between flap 2 and valve seat 6 to sealing, ensures shape between flap 2 and valve seat 6
Into good sealing property.
As the preferred of the present embodiment, the vertical plane 8-1 of the Z-shaped step 8 of valve seat 6 ring week is provided with multiple-sealed groove 6-
Sealing ring 6-2 is respectively arranged with 1, seal groove 6-1.
As the preferred of the present embodiment, the upper surface of flap 2 is provided with a circle low ball shape boss 2-1 and the high spherical boss of a circle
2-2, at valve during open mode, the high spherical boss 2-2 of the upper surface of flap 2 cooperatively forms bonnet 3 with the lower surface of bonnet 3
With the sealing pair between valve rod 4, when high spherical boss 2-2 high wear to low ball shape boss 2-1 with it is high when, low spherical male
Platform 2-1, high spherical boss 2-2 match somebody with somebody with the lower surface of bonnet 3 jointly is combined into sealing pair.
As the preferred of the present embodiment, the inner surface of valve body 1, the outer surface of flap 2, the inner surface of bonnet 3, valve rod 4
Outer surface and the outer surface of the flange of valve body 1 are respectively equipped with anticorrosive coat 8, and anticorrosive coat 8 is polytetrafluoroethylene (PTFE).
Claims (6)
1. corrosion-resistant whole lining stop valve, including valve body, flap, bonnet, valve rod and handwheel, valve body are provided at both ends with flange,
The upper end of valve body is connected with bonnet, is provided with valve seat in valve body, flap is equipped with valve seat, the lower end connection valve of the valve rod
Valve, upper end are upward through bonnet connection handwheel, and sealing device is provided between the valve rod and bonnet, it is characterised in that：Flap
It is the Z-shaped step that cooperates with the contact surface of valve seat, the vertical of the Z-shaped step of flap and valve seat inward-facing rolls oblique, flap
Mutually contradict to form the first sealing pair with the leave from office terrace of the Z-shaped step of valve seat, the vertical plane phase of the Z-shaped step of flap and valve seat
The terrace of appearing on the stage of the Z-shaped step of mutually the second sealing pair of fitting formation, flap and valve seat mutually contradicts to form the 3rd sealing pair.
2. corrosion-resistant whole lining stop valve according to claim 1, it is characterised in that：The Z-shaped step vertical plane of the valve seat
Be provided with multiple-sealed groove ring week, be respectively arranged with sealing ring in seal groove.
3. corrosion-resistant whole lining stop valve according to claim 1, it is characterised in that：The upper surface of the flap is provided with a circle
Low ball shape boss and the high spherical boss of a circle, when stop valve is in open mode, low ball shape boss, high spherical boss and bonnet
Lower surface with being combined into sealing pair.
4. corrosion-resistant whole lining stop valve according to claim 1, it is characterised in that：The sealing device is to be arranged on bonnet
V-type polytetrafluoroethylcombination combination insertion ring between valve rod, filler pressure is provided with the upper end of V-type polytetrafluoroethylcombination combination insertion ring
Lid, gland are bolted to connection with bonnet.
5. corrosion-resistant whole lining stop valve according to claim 1, it is characterised in that：The inner surface of valve body, the appearance of flap
Face, the inner surface of bonnet, the outer surface on the outer surface of valve rod and valve flange side are respectively equipped with anticorrosive coat.
6. corrosion-resistant whole lining stop valve according to claim 5, it is characterised in that：The anticorrosive coat is polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720604855.4U CN206889683U (en) | 2017-05-27 | 2017-05-27 | Corrosion-resistant whole lining stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720604855.4U CN206889683U (en) | 2017-05-27 | 2017-05-27 | Corrosion-resistant whole lining stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889683U true CN206889683U (en) | 2018-01-16 |
Family
ID=61320482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720604855.4U Expired - Fee Related CN206889683U (en) | 2017-05-27 | 2017-05-27 | Corrosion-resistant whole lining stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889683U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730592A (en) * | 2018-08-08 | 2018-11-02 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of self sealing valve of easy access |
| CN109357035A (en) * | 2018-12-29 | 2019-02-19 | 浙江东信阀门有限公司 | A kind of valve rod axial direction seal ball-valve |
| CN109538775A (en) * | 2019-01-11 | 2019-03-29 | 江苏金晟元特种阀门股份有限公司 | Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve |
-
2017
- 2017-05-27 CN CN201720604855.4U patent/CN206889683U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730592A (en) * | 2018-08-08 | 2018-11-02 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of self sealing valve of easy access |
| CN109357035A (en) * | 2018-12-29 | 2019-02-19 | 浙江东信阀门有限公司 | A kind of valve rod axial direction seal ball-valve |
| CN109357035B (en) * | 2018-12-29 | 2023-12-01 | 浙江东信阀门有限公司 | Axial sealing ball valve of valve rod |
| CN109538775A (en) * | 2019-01-11 | 2019-03-29 | 江苏金晟元特种阀门股份有限公司 | Resistance to strong rotten particle-resistant fluoroplastic all-liner shut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20190527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |