CN206386555U - A kind of cryogenic ball valve - Google Patents
A kind of cryogenic ball valve Download PDFInfo
- Publication number
- CN206386555U CN206386555U CN201620702829.0U CN201620702829U CN206386555U CN 206386555 U CN206386555 U CN 206386555U CN 201620702829 U CN201620702829 U CN 201620702829U CN 206386555 U CN206386555 U CN 206386555U
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- China
- Prior art keywords
- gland
- filler
- flange
- hole
- valve body
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Abstract
The utility model discloses a kind of cryogenic ball valve, including valve body and valve rod, filler is set between the valve body and valve rod, gland is set on filler, the gland is annular, its lower end is against on filler, upper end is provided with the flange turned up, the flange is provided with through hole, valve body is provided with screwed hole corresponding with the through hole, screw is threadedly coupled through through hole with the screwed hole, compression spring is provided between flange and the nut of screw, the gland is made up of elastomeric material, metallic elastic skeleton corresponding with its shape is provided with gland, the metallic elastic skeleton includes the metal flange that ring skeleton main body and framework main upper end are turned up, the framework main is designed to corrugated tube shape.The purpose of this utility model is to provide a kind of ball valve of flexible sealing structure, is loosened with eliminating the trip bolt thrust caused by high/low temperature changes.
Description
Technical field
The utility model is related to field of fluid control, and in particular to a kind of cryogenic ball valve.
Background technology
Development with World Economics and the continuous improvement to environmental protection requirement, world's industrial structure are also constantly being adjusted
Whole therefore more and more extensive to the use of ball valve, the protection especially to environment is particularly important and is widely recognized as.At present in oil
In the projects such as work, coal chemical industry, Gas Industry, often leaked at the sealing at filler.
General set between valve body and valve rod sets gland on filler, filler, passes through between gland and valve body
Screw is fixedly connected, and is influenceed by high/low temperature, and the thrust of bolt can loosen, so as to situation about being leaked at filler occur.
Utility model content
The purpose of this utility model is to provide a kind of ball valve of flexible sealing structure, to eliminate because high/low temperature change is drawn
The trip bolt thrust risen loosens.
To achieve these goals, the technical solution adopted in the utility model is：A kind of cryogenic ball valve, including valve body and valve
Bar, sets on filler, filler between the valve body and valve rod and sets gland, it is characterised in that：The gland is ring
Shape, its lower end is against on filler, and upper end is provided with the flange turned up, and the flange is provided with through hole, and valve body is provided with to be led to described
The corresponding screwed hole in hole, screw is threadedly coupled through through hole with the screwed hole, provided with compression between flange and the nut of screw
Spring, the gland is made up of elastomeric material, and metallic elastic skeleton corresponding with its shape is provided with gland, described
Metallic elastic skeleton includes the metal flange that ring skeleton main body and framework main upper end are turned up, and the framework main is designed to ripple
Line tubulose.
The utility model is further arranged to, and the gland lower end is towards filler pressure with the end face that filler offsets
Inclined-plane on the inside of lid.
The utility model is further arranged to, and the compression spring is offseted by an air ring and flange.
The utility model is further arranged to, and the air ring edge is provided with surrounding edge, and surrounding edge is used to limit compression spring
Move radially.
The beneficial effects of the utility model：Cryogenic ball valve provided by the utility model, its gland is elastic compression
On filler, and it is that elastic compression is on filler in the presence of double elastic power, even if so trip bolt loosens,
Gland still can compress filler in the presence of elastic force, it is ensured that good sealing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A portions enlarged drawing in the utility model Fig. 1；
Fig. 3 is the structural representation of the utility model gland.
Label implication in figure：1- valve bodies；2- valve rods；3- fillers；4- glands；41- flange；5- screws；6- compresses bullet
Spring；7- inclined-planes；8- air rings；9- surrounding edges；10- metallic elastic skeletons；101- framework mains；102- metal flange.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
The utility model is illustrated below with reference to Fig. 1 to Fig. 3.
A kind of cryogenic ball valve, including valve body 1 and valve rod 2, set on filler 3, filler 3 between the valve body 1 and valve rod 2 and set
Put gland 4.The gland 4 is annular, and its lower end is against on filler 3, and upper end is provided with the flange 41 turned up, described
Flange 41 is provided with through hole, and valve body 1 is provided with screwed hole corresponding with the through hole, and screw 5 passes through through hole and the screwed hole
Threaded connection, is provided with compression spring 6 between flange 41 and the nut of screw 5.By using above-mentioned technical proposal, gland 4
Under the elastic force effect of compression spring 6, elastic compression is on filler.Loosened even if screw 5 is affected by temperature, in elastic force
In the presence of gland 4 still can compress filler 3, it is ensured that good sealing.
Gland 4 is made up of elastomeric material, and metallic elastic skeleton 10 corresponding with its shape is provided with gland 4,
The metallic elastic skeleton 10 includes the metal flange 102 that ring skeleton main body 101 and the upper end of framework main 101 are turned up, described
Framework main 101 is designed to corrugated tube shape, using the gland 4 of said structure in the top pressure by screw 5, corrugated tube shape
Framework main 101 can along its axial direction occur elastic deformation, so coordinate compression spring provide double elastic seal, filler
Elastic compression is on filler 3 in the presence of double elastic power for gland 4, even if so screw 5 loosens, in the work of elastic force
Filler 3 still can be compressed with lower gland 4, it is ensured that good sealing.
The gland 4 that elastomeric material is made is when being squeezed, and itself can also occur elastic deformation, in valve rod and valve body
Between can also play a part of elastic packing.
The lower end of gland 4 and the inclined-plane 7 that the end face that filler 3 offsets is towards the inner side of gland 4.Such gland
4 when being pressed on filler 3, and the inclined-plane 7 can give filler to apply the power to the place side of valve rod 2, filler 3 is affixed with valve rod 2
Closer, sealing effectiveness is more preferable.
Compression spring 6 is offseted by an air ring 8 and flange 41, the biography for being easy to the spring energy of compression spring 6 uniform, stable
Pass gland 4.The edge of air ring 8 is provided with surrounding edge 9, and surrounding edge 9 is used to limit moving radially for compression spring.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and modification, above-mentioned vacation can also be made
If these improvement and modification also should be regarded as protection domain of the present utility model.
Claims (1)
1. a kind of cryogenic ball valve, including valve body and valve rod, set setting filler pressure on filler, filler between the valve body and valve rod
Lid, it is characterised in that：The gland is annular, and its lower end is against on filler, and upper end is provided with the flange turned up, the flange
Through hole is provided with, valve body is provided with screwed hole corresponding with the through hole, and screw is threadedly coupled through through hole with the screwed hole,
Compression spring is provided between flange and the nut of screw, the gland is made up of elastomeric material, be provided with gland with
The corresponding metallic elastic skeleton of its shape, the metallic elastic skeleton turns up including ring skeleton main body and framework main upper end
Metal flange, the framework main is designed to corrugated tube shape, and the gland lower end is that direction is filled out with the end face that filler offsets
Expect the inclined-plane on the inside of gland, the compression spring is offseted by an air ring and flange, the air ring edge is provided with surrounding edge, encloses
Side is used to limit moving radially for compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620702829.0U CN206386555U (en) | 2016-07-04 | 2016-07-04 | A kind of cryogenic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620702829.0U CN206386555U (en) | 2016-07-04 | 2016-07-04 | A kind of cryogenic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386555U true CN206386555U (en) | 2017-08-08 |
Family
ID=59487263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620702829.0U Active CN206386555U (en) | 2016-07-04 | 2016-07-04 | A kind of cryogenic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006027A (en) * | 2019-12-20 | 2020-04-14 | 严涛 | Nuclear power butterfly valve |
-
2016
- 2016-07-04 CN CN201620702829.0U patent/CN206386555U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006027A (en) * | 2019-12-20 | 2020-04-14 | 严涛 | Nuclear power butterfly valve |
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