CN205978589U - Low temperature ball valve - Google Patents
Low temperature ball valve Download PDFInfo
- Publication number
- CN205978589U CN205978589U CN201621027459.1U CN201621027459U CN205978589U CN 205978589 U CN205978589 U CN 205978589U CN 201621027459 U CN201621027459 U CN 201621027459U CN 205978589 U CN205978589 U CN 205978589U
- Authority
- CN
- China
- Prior art keywords
- sealing
- valve
- block
- valve rod
- sealed spheroid
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a low temperature ball valve, it relates to ball valve technical field, the both sides of sealed spheroid all are provided with the mounting bracket, install the sealing member on the mounting bracket, the sealing member matches with the outer wall of sealed spheroid, the valve rod is installed to the upper end of sealed spheroid, the valve rod cross -under is being welded on the casing of valve body upper end, be provided with the carbon packing piece on the inner wall of casing, the lower seal piece is installed respectively to the downside of valve rod, the upper seal piece, and lower seal piece, the outside of upper seal piece all sets up in the seal groove of carbon packing piece, retainer plate is installed to the upper end of carbon packing piece, retainer plate's inner circle setting is in the seal groove of valve rod, the internal gland is installed to retainer plate's upper end, the internally mounted of internal gland has energy storage of spring sealing washer and wear resistant strip, the gland is installed to the upper end of casing, wear resistant strip is in proper order distinguished to the inside of last gland, double -layer seal ring and dust ring, the utility model discloses be convenient for realize that low temperature is high -efficient sealed, improved stability and leakproofness, increase of service life, it is easy and simple to handle.
Description
Technical field
This utility model is related to ball valve technical field and in particular to a kind of cryogenic ball valve.
Background technology
Ball valve is that opening and closing element (spheroid) is driven by valve rod, and the valve rotating around ball valve axis.Also can be used for flowing
The regulation of body and control, wherein firmly sealing have between V-type ball valve its V-type core and metal seat valve of pile-up welding hard alloy very strong
Shearing force, be particularly well-suited to fibre-bearing, small solid material etc. medium.And multi-pass ball valve not only can flexibly be controlled on pipeline
The switching at the interflow of medium processed, shunting and flow direction, also can close arbitrary passage simultaneously and so that two other passage is connected.This class
Valve typically should be horizontally mounted in the duct.Ball valve is divided into according to type of drive：Pneumatic ball valve, electrical ball valve, manual ball valve.
With the development of China's oil, gas industry, natural gas is increasingly favored as clean energy resource.Natural gas
In liquefaction, storage, course of conveying, very huge to the demand of Subzero valve, simultaneously because medium has combustibility, low
Under warm environment, once leakage or the situation of internal hemorrhage due to trauma in valve, the medium in pipeline necessarily will be by between valve body and core, valve seat
Gap feed line or installing place, loss of seal function, the low temperature combustible medium leaking will certainly cause huge disaster.
Utility model content
The purpose of this utility model is the defect and deficiency for prior art, provides a kind of cryogenic ball valve.
In order to solve the problems of background technology, a kind of cryogenic ball valve of the present utility model, it comprises valve body, installation
Flange, sealed spheroid, installing rack, sealing member, valve rod, graphite packing block, lower sealing block, upper sealing block, sealing clamp, intrinsic pressure
Lid, upper press cover, check valve；The two ends of valve body are mounted on mounting flange, valve body be internally provided with sealed spheroid, sealed spheroid
Both sides be provided with installing rack, installing rack is provided with sealing member, sealing member is matched with the outer wall of sealed spheroid, ball sealer
The upper end of body is provided with valve rod, and valve rod is worn and is connected on the housing being welded on valve body upper end, the inwall of housing is provided with graphite and fills out
Material block, the downside of valve rod is separately installed with lower sealing block, upper sealing block, and the outside of lower sealing block, upper sealing block and is arranged at
In the seal groove of graphite packing block, the upper end of graphite packing block is provided with sealing clamp, and the inner ring of sealing clamp is arranged on valve rod
Seal groove in, the upper end of sealing clamp is provided with internal gland, the inside of internal gland be provided with spring energy-storage sealing ring with wear-resisting
Bar, the upper end of housing is provided with upper press cover, and wear rib, double-layer seal rings and dust ring successively are distinguished in the inside of upper press cover, unidirectional
Valve is arranged on the outer wall of housing, and check valve is worn by pipeline and is connected on enclosure interior, and check valve is arranged on internal gland, upper press cover
Between.
Preferably, described sealing member is carbon seal ring.
Preferably, described lower sealing block, the inside of upper sealing block are provided with reinforcement steel plate.
This utility model has the beneficial effect that：Facilitate implementation efficient cryogenic sealing, improve stability and sealing, prolongation makes
With the life-span, easy and simple to handle.
Brief description
Fig. 1 is structural representation of the present utility model.
Description of reference numerals：
1- valve body；2- mounting flange；3- sealed spheroid；4- installing rack；5- sealing member；6- valve rod；7- graphite packing block；8-
Lower sealing block；The upper sealing block of 9-；10- sealing clamp；11- internal gland；12- upper press cover；13- check valve.
Specific embodiment
Below in conjunction with the accompanying drawings, this utility model is further described.
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and specifically
Embodiment, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only used
To explain this utility model, it is not used to limit this utility model.
As shown in figure 1, this specific embodiment adopts the following technical scheme that：It comprises valve body 1, mounting flange 2, ball sealer
Body 3, installing rack 4, sealing member 5, valve rod 6, graphite packing block 7, lower sealing block 8, upper sealing block 9, sealing clamp 10, internal gland
11st, upper press cover 12, check valve 13；The two ends of valve body 1 are mounted on mounting flange 2, valve body 1 be internally provided with sealed spheroid 3,
The both sides of sealed spheroid 3 are provided with installing rack 4, and installing rack 4 is provided with sealing member 5, and sealing member 5 is outer with sealed spheroid 3
Wall matches, and the upper end of sealed spheroid 3 is provided with valve rod 6, and valve rod 6 is worn and is connected on the housing being welded on valve body 1 upper end, housing
Graphite packing block 7 is provided with inwall, the downside of valve rod 6 is separately installed with lower sealing block 8, upper sealing block 9, and lower sealing block 8,
The outside of upper sealing block 9 is arranged in the seal groove of graphite packing block 7, and the upper end of graphite packing block 7 is provided with sealing clamp
10, the inner ring of sealing clamp 10 is arranged in the seal groove of valve rod 6, and the upper end of sealing clamp 10 is provided with internal gland 11, intrinsic pressure
The inside of lid 11 is provided with spring energy-storage sealing ring and wear rib, and the upper end of housing is provided with upper press cover 12, upper press cover 12 interior
Portion's difference wear rib, double-layer seal rings and dust ring successively, check valve 13 is arranged on the outer wall of housing, and check valve 13 passes through pipe
Road is worn and is connected on enclosure interior, and check valve 13 is arranged between internal gland 11, upper press cover 12.
Further, described sealing member 5 is carbon seal ring.
Further, described lower sealing block 8, the inside of upper sealing block 9 are provided with reinforcement steel plate.
The operation principle of this specific embodiment is：The sealing of sealed spheroid 3 during use, is realized by sealing member 5, with
When, valve rod 6 passes through graphite packing block 7, lower sealing block 8, the double-deck once sealing of upper sealing block 9 cooperation realization, improves sealing effectiveness,
Secondary seal is realized by sealing clamp 10 in the upper end of graphite packing block 7 simultaneously, and internal gland 11 is passed through in the upper end of sealing clamp 10
Realize three-level sealing and compression, upper press cover 12 is realized overall compression and is again sealed off, check valve 13 is easy to injection sealing simultaneously
Medium, the such as noncombustible matter such as sealing water, oil, improve sealing effectiveness, easy to use, easy and simple to handle.
The above, only in order to the technical solution of the utility model is described and unrestricted, those of ordinary skill in the art couple
Other modifications or equivalent that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, all should cover in the middle of right of the present utility model.
Claims (3)
1. a kind of cryogenic ball valve it is characterised in that：It comprises valve body, mounting flange, sealed spheroid, installing rack, sealing member, valve
Bar, graphite packing block, lower sealing block, upper sealing block, sealing clamp, internal gland, upper press cover, check valve；The two ends of valve body are all pacified
Equipped with mounting flange, valve body be internally provided with sealed spheroid, the both sides of sealed spheroid are provided with installing rack, and installing rack is pacified
Equipped with sealing member, sealing member is matched with the outer wall of sealed spheroid, and the upper end of sealed spheroid is provided with valve rod, and valve rod is worn and is connected on weldering
It is connected on the housing of valve body upper end, the inwall of housing is provided with graphite packing block, the downside of valve rod is separately installed with lower sealing
Block, upper sealing block, and the outside of lower sealing block, upper sealing block is arranged in the seal groove of graphite packing block, graphite packing block
Upper end sealing clamp is installed, the inner ring of sealing clamp is arranged in the seal groove of valve rod, and the upper end of sealing clamp is provided with
Internal gland, the inside of internal gland is provided with spring energy-storage sealing ring and wear rib, and the upper end of housing is provided with upper press cover, upper press cover
Inside respectively wear rib, double-layer seal rings and dust ring successively, check valve is arranged on the outer wall of housing, and check valve passes through pipe
Road is worn and is connected on enclosure interior, and check valve is arranged between internal gland, upper press cover.
2. a kind of cryogenic ball valve according to claim 1 it is characterised in that：Described sealing member is carbon seal ring.
3. a kind of cryogenic ball valve according to claim 1 it is characterised in that：Described lower sealing block, upper sealing block interior
Portion is provided with reinforcement steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027459.1U CN205978589U (en) | 2016-08-25 | 2016-08-25 | Low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027459.1U CN205978589U (en) | 2016-08-25 | 2016-08-25 | Low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205978589U true CN205978589U (en) | 2017-02-22 |
Family
ID=58039397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621027459.1U Expired - Fee Related CN205978589U (en) | 2016-08-25 | 2016-08-25 | Low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205978589U (en) |
-
2016
- 2016-08-25 CN CN201621027459.1U patent/CN205978589U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20170222 Termination date: 20170825 |