CN208041390U - A kind of sealing device for solving flange leakage in cryogenic valve - Google Patents
A kind of sealing device for solving flange leakage in cryogenic valve Download PDFInfo
- Publication number
- CN208041390U CN208041390U CN201820363437.5U CN201820363437U CN208041390U CN 208041390 U CN208041390 U CN 208041390U CN 201820363437 U CN201820363437 U CN 201820363437U CN 208041390 U CN208041390 U CN 208041390U
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- Prior art keywords
- flange
- leakage
- upper flange
- lower flange
- split annulus
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Abstract
A kind of sealing device for solving flange leakage in cryogenic valve, include acorn nut, the gasket for being leaked at sealing bolt hole, and it is sleeved on upper flange, the split annulus on the outside of lower flange, packing groove is set on the inside of split annulus, filler is set in packing groove, by gland and screw fixing seal between split annulus and upper flange, lower flange, split annulus is fastened by bolts on the outside of upper flange, lower flange filler.The utility model has the beneficial effects that：When flange leaks in cryogenic valve, acorn nut and gasket construction can be sleeved on upper flange, lower flange outside with the leakage at sealing bolt hole, split annulus, and have the structure of packing seal, can seal the leakage between upper flange and lower flange.
Description
Technical field
The utility model is related to a kind of sealing devices, more particularly to one kind for solving flange leakage in cryogenic valve
Sealing device.
Background technology
Currently, cryogenic valve is commonly used in the pipelines of the strong medium of fugacities such as transport methane, used in long-time
In the process, middle flange gasket is easy failure, there is the possibility centainly leaked, once there is leakage situation, to entire pipe-line system
It can cause the harm that can not be estimated.And the connection type of cryogenic valve and pipeline enclosure is often to be welded to connect, when flange in valve
When leaking, repaired it is difficult to which valve is dismantled from pipeline.
Utility model content
In order to overcome the disadvantages mentioned above of existing cryogenic valve, the utility model to provide one kind and can solve in cryogenic valve
Flange leakage problem realizes the sealing device of on-line maintenance.
Technical solution adopted by the utility model to solve its technical problems is one kind is for solving method in cryogenic valve
Orchid leakage sealing device, include at sealing bolt hole leak acorn nut, gasket, and be sleeved on upper flange, under
Packing groove is arranged on the inside of split annulus in split annulus on the outside of flange, is arranged filler in packing groove, filler by gland with
And screw fixing seal, between split annulus and upper flange, lower flange, split annulus is fastened by bolts in upper flange, laxative remedy
Blue outside.
The utility model has the beneficial effects that：When flange leaks in cryogenic valve, acorn nut and gasket
Structure can be sleeved on upper flange, lower flange outside with the leakage at sealing bolt hole, split annulus, and have the knot of packing seal
Structure can seal the leakage between upper flange and lower flange.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present embodiment.
In figure：1. split annulus；2. filler；3. gland；4. screw；5. bolt；6. gasket；7. filler
8. acorn nut of slot；9. upper flange；10. lower flange；11 bolts hole.
Specific implementation mode
As shown in Figure 1, a kind of sealing device for solving flange leakage in cryogenic valve, including it is used for sealing bolt
Acorn nut 8, the gasket 6 leaked at hole 11, and be sleeved on upper flange 9, the outside of lower flange 10 split annulus 1, split circle
Packing groove 7 is arranged in 1 inside of ring, filler 2 is arranged in packing groove 7, filler 2 is by gland 3 and 4 fixing seal of screw right
It opens between annulus 1 and upper flange 9, lower flange 10, split annulus 1 is fastened on upper flange 9,10 outside of lower flange by bolt 5.
Cryogenic valve, can be by the spiral shell of original connection upper flange 9 and lower flange 10 once leaked in middle flange
Mother replaces with acorn nut 8, and increases gasket 6, to eliminate the leakage at bolt hole 11, in addition, in upper flange 9, lower flange
Split annulus 1 is added in 10 outsides, filler 2 is arranged between split annulus 1 and upper flange 9, lower flange 10, to eliminate upper flange 9
With the leakage between lower flange 10.
Claims (1)
1. a kind of sealing device for solving flange leakage in cryogenic valve, which is characterized in that including being used for sealing bolt
Acorn nut, the gasket leaked at hole, and it is sleeved on upper flange, the split annulus on the outside of lower flange, in the split annulus
Packing groove is arranged in side, filler is arranged in the packing groove, the filler is by gland and screw fixing seal split
Between annulus and upper flange, lower flange, the split annulus is fastened by bolts on the outside of upper flange, lower flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820363437.5U CN208041390U (en) | 2018-03-17 | 2018-03-17 | A kind of sealing device for solving flange leakage in cryogenic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820363437.5U CN208041390U (en) | 2018-03-17 | 2018-03-17 | A kind of sealing device for solving flange leakage in cryogenic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041390U true CN208041390U (en) | 2018-11-02 |
Family
ID=63948445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820363437.5U Active CN208041390U (en) | 2018-03-17 | 2018-03-17 | A kind of sealing device for solving flange leakage in cryogenic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041390U (en) |
-
2018
- 2018-03-17 CN CN201820363437.5U patent/CN208041390U/en active Active
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