CN210240596U - Helium-level packing double-seal stop valve clack structure - Google Patents
Helium-level packing double-seal stop valve clack structure Download PDFInfo
- Publication number
- CN210240596U CN210240596U CN201920931322.6U CN201920931322U CN210240596U CN 210240596 U CN210240596 U CN 210240596U CN 201920931322 U CN201920931322 U CN 201920931322U CN 210240596 U CN210240596 U CN 210240596U
- Authority
- CN
- China
- Prior art keywords
- valve clack
- valve body
- valve
- helium
- sphere
- 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
Images
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model provides a helium level compels tight double seal stop valve clack structure, includes valve clack, valve body, valve clack upper portion and valve body internal surface butt, its characterized in that, the valve clack lower part is equipped with the insert sphere, the inside interior sphere that is equipped with of valve body, insert sphere and interior sphere butt. Under the action of medium, the outer spherical surface at the lower part of the valve clack and the inner spherical surface in the valve body generate tight sealing, and a double sealing structure is formed by the sealing structure and the sealing structure which is abutted against the upper part of the valve clack and the inner surface of the valve body, so that helium level sealing is realized.
Description
Technical Field
The utility model relates to a helium level compels tight double seal stop valve clack structure.
Background
In high temperature gas cooled reactors, shut-off valves are typically used for the purpose of isolating helium gas. However, because helium has strong permeability, for the metal sealing form (metal-to-metal sealing pair form) of the commonly used stop valve, whether a plane sealing (the valve flap structure is in a flat plate form) or a conical sealing (the valve flap structure is in a conical form), the two single sealing forms can hardly meet the helium-level sealing requirement of the valve. If the valve used in the high-temperature gas cooled reactor cannot effectively isolate helium (the leakage amount of the helium exceeds the standard), on one hand, the helium is wasted, and on the other hand, the loss of the core energy of the high-temperature gas cooled reactor is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the prior art problem, the utility model provides a helium level compels tight double seal stop valve clack structure.
The technical scheme of the utility model, a helium level compels tight double seal stop valve clack structure, including valve clack, valve body, valve clack upper portion and valve body internal surface butt, the valve clack lower part is equipped with the insert, the inside interior sphere that is equipped with of valve body, insert and interior sphere butt.
The beneficial effects of the utility model are that, under the medium effort, make the insert surface of valve clack lower part and the inside interior sphere of valve body produce inseparable sealed, through the seal structure of this kind of seal structure and valve clack upper portion and valve body internal surface butt, form double seal structure, realized the sealed realization of helium level.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a valve flap; 2. a valve body; 3. an outer spherical surface; 4. an inner spherical surface.
Detailed Description
As shown in figure 1, the helium-level packing double-seal stop valve clack structure comprises a valve clack and a valve body, wherein the upper portion of the valve clack is abutted to the inner surface of the valve body, an outer spherical surface is arranged on the lower portion of the valve clack, an inner spherical surface is arranged inside the valve body, and the outer spherical surface is abutted to the inner spherical surface. Under the action of medium, the outer spherical surface at the lower part of the valve clack and the inner spherical surface in the valve body generate tight sealing, and a double sealing structure is formed by the sealing structure and the sealing structure which is abutted against the upper part of the valve clack and the inner surface of the valve body, so that helium level sealing is realized.
Claims (1)
1. The utility model provides a helium level compels tight double seal stop valve clack structure, includes valve clack, valve body, valve clack upper portion and valve body internal surface butt, its characterized in that, the valve clack lower part is equipped with the insert sphere, the inside interior sphere that is equipped with of valve body, insert sphere and interior sphere butt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931322.6U CN210240596U (en) | 2019-06-20 | 2019-06-20 | Helium-level packing double-seal stop valve clack structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931322.6U CN210240596U (en) | 2019-06-20 | 2019-06-20 | Helium-level packing double-seal stop valve clack structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240596U true CN210240596U (en) | 2020-04-03 |
Family
ID=69986873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920931322.6U Active CN210240596U (en) | 2019-06-20 | 2019-06-20 | Helium-level packing double-seal stop valve clack structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210240596U (en) |
-
2019
- 2019-06-20 CN CN201920931322.6U patent/CN210240596U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203516886U (en) | Pilot-operated balance valve element of adjusting-type valve | |
| CN205207009U (en) | Can effectively reduce seal structure of bivalve core hot junction EGR valve case spillage | |
| CN210240596U (en) | Helium-level packing double-seal stop valve clack structure | |
| CN203146848U (en) | Balance type multifunctional regulating valve | |
| CN203627966U (en) | Cage type double-base adjusting valve with metal elastic C-shaped sealing ring component | |
| CN210240759U (en) | AH-level stop valve sealing structure | |
| CN210240600U (en) | Helium-level elastic double-sealing stop valve clack structure | |
| CN204922028U (en) | Valve | |
| CN203500516U (en) | Low temperature sealing valve | |
| CN202884074U (en) | Non-active pressure balance system solving boiler effect of nuclear grade sluice valve | |
| WO2020253405A1 (en) | Helium-level elastic double-sealing cut-off valve disc structure | |
| CN211371324U (en) | Helium isolating valve capable of replacing valve seat on line for high-temperature gas cooled reactor | |
| CN212055906U (en) | High-pressure gate valve convenient to open | |
| CN202441896U (en) | Balanced cage type single-seat adjusting valve | |
| CN209213019U (en) | A kind of air sealed valve | |
| CN203560491U (en) | High-performance welding ball valve | |
| CN204784947U (en) | Leakage -proof valve | |
| CN206290813U (en) | A kind of pneumatic dog angle pedestal valve | |
| CN204677801U (en) | A kind of eccentric ball valve structure | |
| CN204828681U (en) | Cooling right -angle type stop valve of industry | |
| CN206159585U (en) | Self -operated adjusting valve | |
| CN213332490U (en) | All-welded ball valve | |
| CN204569951U (en) | A kind of double seal Blast Furnace Throat Ventilation Valve | |
| CN206175714U (en) | Small -bore high -pressure all -welded ball valve | |
| CN212509585U (en) | Main sealing pair plane double sealing structure for stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |