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 PDF

Info

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
Authority
CN
China
Prior art keywords
flange
sealing
leakage
cryogenic valve
split annulus
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
Application number
CN201820363437.5U
Other languages
Chinese (zh)
Inventor
张清双
茅岭峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Shentong Valve Co Ltd
Original Assignee
Jiangsu Shentong Valve Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Shentong Valve Co Ltd filed Critical Jiangsu Shentong Valve Co Ltd
Priority to CN201820363437.5U priority Critical patent/CN208041390U/en
Application granted granted Critical
Publication of CN208041390U publication Critical patent/CN208041390U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

A kind of sealing device for solving flange leakage in cryogenic valve
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.
CN201820363437.5U 2018-03-17 2018-03-17 A kind of sealing device for solving flange leakage in cryogenic valve Active CN208041390U (en)

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)

Similar Documents

Publication Publication Date Title
CN203963386U (en) A kind of novel tape-pressure leakage clogging device
CN202928755U (en) Device for testing seepage of non-return valve
CN208041390U (en) A kind of sealing device for solving flange leakage in cryogenic valve
CN103344744B (en) Target plate device
CN206369047U (en) A kind of material filling type Pipe leakage stopper
CN102661287B (en) Fireproof and leakproof system for high-temperature centrifugal pump
CN104089041B (en) The box-like hermetically-sealed construction of valve sets and method thereof
CN204420158U (en) A kind of gate sealing configuration
CN207375098U (en) A kind of storage tank water filling leak-proof device
CN204062322U (en) Multi-functional pipeline leakage plugging device
CN202132632U (en) Flange joint leakproof device
CN204101250U (en) A kind of double mechanical seal stationary state pressure testing device
CN204083585U (en) Material filling type flange alive
CN205383273U (en) Flexible seal butterfly valve
CN204153155U (en) Mechanical seal leak-tight seal assembly
CN203587298U (en) Pipeline air tightness detection device
CN105603934A (en) Totally-closed water gate and use method thereof
CN207279082U (en) A kind of PVC drain pipe pipe connecting
JP3200255U (en) A kind of gas filling tent pipeline connection valve and its gas filling tent pipeline connection structure
CN207814701U (en) A kind of sealing flange
CN204003588U (en) A kind of vertical volute pump sealing configuration
CN204062282U (en) Seal arrangement safeguarded by three-way pipe
CN207935607U (en) Plugging pipelines tool with pressure relief
CN202580459U (en) Local flange leakage stopping fixture
CN207796340U (en) A kind of explosion-proof tubular type vulcanized sodium pipeline flanges

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant