CN205715712U - A kind of ultralow temperature stop valve improved metal seals flap - Google Patents
A kind of ultralow temperature stop valve improved metal seals flap Download PDFInfo
- Publication number
- CN205715712U CN205715712U CN201620525095.3U CN201620525095U CN205715712U CN 205715712 U CN205715712 U CN 205715712U CN 201620525095 U CN201620525095 U CN 201620525095U CN 205715712 U CN205715712 U CN 205715712U
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- China
- Prior art keywords
- flap
- valve
- ultralow temperature
- valve rod
- deformation
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Abstract
The utility model discloses a kind of ultralow temperature stop valve improved metal and seal flap, including flap, described flap is placed in valve inner, and flap uses metal material to make, flap be one end column other end be circular cone shape structure, and fixed valve rod in the cylindrical end of flap；The cylindrical end of described flap and circular cone shape end transition position are provided with a circle compensating tank, are provided with valve clack cover between flap and valve rod；The fixed handwheel in top of described valve rod；Sealing ring or sealing gasket it is provided with between described flap and valve body, this utility model produces and provides the benefit that: by the elastic compensating groove offered on metal flap, when ultralow temperature, flap and valve body sealing surface micro-deformation, hold out against flap by valve rod, makes valve clack sealing surface produce micro-deformation, compensate this processing or the micro-deformation of temperature generation, this flap can accomplish absolute zero leakage when 196 DEG C, improves the reliability of sealing surface greatly.
Description
Technical field
This utility model relates to valve technology field, and specifically a kind of ultralow temperature stop valve improved metal seals flap.
Background technology
Stop valve, also known as pipe valve valve, belongs to forced seal formula valve, so when valve closing, it is necessary to apply pressure to flap
Power, does not leaks with forced seal face.When medium is by when entering valve below flap, and the resistance overcome required for operating physical force, is valve
The frictional force of bar and filler is with by thrust produced by the pressure of medium, and the power of the force rate valve opening door of closing valve is big, so valve rod
Diameter want big, the fault of valve rod bending otherwise can occur.It is divided into three kinds: Flange joint, screwed connection, welding by connected mode
Connect.After self-packing valve occurs, the medium of stop valve flows to just change by entering valve pocket above flap, at this moment in medium pressure
Under power effect, the power of closing valve is little, and the power of valve opening door is big, and the diameter of valve rod can correspondingly reduce.Meanwhile, in medium effect
Under, the valve of this form is the tightest.
At present, the sealing surface of the flap of metal sealing as you know owing to being affected by working temperature, sealing surface
Yielding, although part, through subzero treatment, can greatly reduce the probability of the deformation of sealing surface, but at practical situation
Under, owing to low-temperature test is that pressure is the highest, is difficult to accomplish zero leakage, in high pressure as test(ing) medium with nitrogen or helium
The sealing surface reliability of lower Disc is the most permanent.
Utility model content
The purpose of this utility model is to provide a kind of ultralow temperature stop valve improved metal to seal flap, above-mentioned to solve
The problem proposed in background technology.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of ultralow temperature stop valve improved metal seals flap, and including flap, described flap is placed in valve inner, flap
Employing metal material is made, flap be one end column other end be circular cone shape structure, and fixed valve rod in the cylindrical end of flap；
The cylindrical end of described flap and circular cone shape end transition position are provided with a circle compensating tank, are provided with valve clack cover between flap and valve rod.
As further scheme of the present utility model: the fixed handwheel in top of described valve rod.
As further scheme of the present utility model: be provided with sealing ring or sealing gasket between described flap and valve body.
Compared with prior art, the beneficial effects of the utility model are: by the elastic compensating offered on metal flap
Groove, when ultralow temperature, flap and valve body sealing surface micro-deformation, hold out against flap by valve rod, make valve clack sealing surface produce trace
Deformation, compensates this processing or the micro-deformation of temperature generation, and this flap can accomplish absolute zero leakage, pole when-196 DEG C
The big reliability improving sealing surface.
Accompanying drawing explanation
Fig. 1 is profile of the present utility model.
In figure: 1-valve body, 2-flap, 3-compensating tank, 4-valve clack cover, 5-valve rod.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Referring to Fig. 1, a kind of ultralow temperature stop valve improved metal seals flap, and including flap 2, described flap 2 is placed in
Valve body 1 is internal, flap 2 uses metal material to make, flap 2 be one end column other end be circular cone shape structure, and flap 2
Fixed valve rod 5 in cylindrical end；The cylindrical end of described flap 2 and circular cone shape end transition position are provided with a circle compensating tank 3, flap 2 with
Valve clack cover 4 it is provided with between valve rod 5.
The fixed handwheel in top of described valve rod 5.
It is provided with sealing ring or sealing gasket between described flap 2 and valve body 1.
This utility model ensures the metal flap 2 sealing under working at ultra-low temperature state by the compensating tank 3 arranged
Can, during work: owing to flap 2 and valve body 1 can exist the change of trace in its surface under working at ultra-low temperature state or in the course of processing
Shape, causes the sealing property of flap 2 can not be guaranteed, holds out against flap 2 by valve rod 5, makes flap 2 sealing surface produce trace and becomes
Shape, compensates the micro-deformation that this processing or temperature produce, compensating tank 3 can micro-deformation to be played good compensating action,
Ensure the reliability of flap 2 sealing surface.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art is possessed, it is also possible on the premise of without departing from this patent objective
Make a variety of changes.
Claims (3)
1. ultralow temperature stop valve improved metal seals a flap, including flap, it is characterised in that described flap is placed in valve body
Inside, flap uses metal material to make, flap be one end column other end be circular cone shape structure, and in the cylindrical end of flap
Fixed valve rod；The cylindrical end of described flap and circular cone shape end transition position are provided with a circle compensating tank, are provided with valve between flap and valve rod
Lobe lid.
A kind of ultralow temperature stop valve improved metal the most according to claim 1 seals flap, it is characterised in that described valve
The fixed handwheel in top of bar.
A kind of ultralow temperature stop valve improved metal the most according to claim 1 seals flap, it is characterised in that described valve
Sealing ring or sealing gasket it is provided with between lobe and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620525095.3U CN205715712U (en) | 2016-06-03 | 2016-06-03 | A kind of ultralow temperature stop valve improved metal seals flap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620525095.3U CN205715712U (en) | 2016-06-03 | 2016-06-03 | A kind of ultralow temperature stop valve improved metal seals flap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715712U true CN205715712U (en) | 2016-11-23 |
Family
ID=57299724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620525095.3U Expired - Fee Related CN205715712U (en) | 2016-06-03 | 2016-06-03 | A kind of ultralow temperature stop valve improved metal seals flap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467977A (en) * | 2021-06-10 | 2022-12-13 | 北京航天试验技术研究所 | Metal diaphragm sealing stop valve |
-
2016
- 2016-06-03 CN CN201620525095.3U patent/CN205715712U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467977A (en) * | 2021-06-10 | 2022-12-13 | 北京航天试验技术研究所 | Metal diaphragm sealing stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224051 eleven groups of Xinmin village, Nanyang Town, Ting Lake District, Jiangsu, Yancheng City Patentee after: JIANGSU SHENGTAI VALVE Co.,Ltd. Address before: 224051 eleven groups of Xinmin village, Nanyang Town, Ting Lake District, Jiangsu, Yancheng City Patentee before: YANCHENG SNY VALVE Co.,Ltd. |
|
| 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: 20161123 |