CN208750056U - A kind of high pressure valve flange and valve base sealing structure - Google Patents
A kind of high pressure valve flange and valve base sealing structure Download PDFInfo
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- CN208750056U CN208750056U CN201821273136.XU CN201821273136U CN208750056U CN 208750056 U CN208750056 U CN 208750056U CN 201821273136 U CN201821273136 U CN 201821273136U CN 208750056 U CN208750056 U CN 208750056U
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- high pressure
- sealing structure
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Abstract
The utility model relates to a kind of high pressure valve flange and valve base sealing structures, including valve body and left body, valve body is affixed by threaded fastener with left body, O-ring seals A and metal oval pad are equipped between valve body and left body, valve seat bearing assembly is equipped between sphere and left body, valve seat bearing assembly includes valve seat bearing, valve seat and valve seat pressure ring, and valve seat is mounted in the slot between valve seat pressure ring and valve seat bearing, valve seat pressure ring and valve seat bearing are affixed, are equipped with O-ring seals B between valve seat bearing and left body.By positioning finger setting between the utility model valve body and left body, assembling accuracy is improved；It is sealed jointly between valve body and left body by 1 metal oval pad and 1 O-ring seals A, increases sealing reliability；The oval ring of metal material can bear higher pressure, and corrosion resistance is strong；Under the preload effect of studs and hex nut, increases required for the sealing of metal oval pad than pressure, valve seal performance can be improved.
Description
Technical field
The utility model relates to valve technology field more particularly to a kind of high pressure valve flanges and valve base sealing structure.
Background technique
Flange sealing structure in high pressure valve at present, valve body and left body are connected and fixed by studs and hex nut,
There is flange sealing structure in 4 O-ring seals composition between valve body and left body, in actual high-voltage operating condition, middle flange O shape sealing
Circle deforms seriously under the action of high pressure and corrosive medium, cannot reach seal pressure power, the method in valve required for sealing
Leakage is easy at orchid.In addition, existing high pressure valve valve base sealing structure, valve seat bearing and valve seat pressure ring are to be threadedly coupled to be easy
It loosens, valve seat tail portion does not have filler, cannot play dust-proof effect, does not have retaining ring before O-ring seals, and O-ring seals are easy damage
It is bad, so as to cause valve base sealing failure.
Utility model content
The utility model is intended to provide high pressure valve flange and valve base sealing structure, can effectively solve flange in high-pressure ball valve
And the problem of valve base sealing, it improves flange and valve base seal property is reliable.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:
A kind of high pressure valve flange and valve base sealing structure, including valve body, sphere and left body, valve body and left body pass through screw thread
Fastener is affixed, and O-ring seals A and metal oval pad are equipped between valve body and left body；Valve seat branch is equipped between sphere and left body
Bearing assembly, the valve seat bearing assembly include that valve seat bearing, valve seat and valve seat pressure ring, valve seat are mounted on valve seat pressure ring and valve seat branch
In slot between holding, valve seat pressure ring and valve seat bearing are affixed, are equipped with O-ring seals B between valve seat bearing and left body.
Further, O-ring seals A provides axial seal, and metal oval pad provides end face seal.
Wherein, the endface of the valve body and left body is equipped with the groove for installing metal oval pad, metal oval pad
Simultaneously in the groove of valve body and left body.
It further, further include positioning pin, valve body has the pin hole being adapted to positioning pin, positioning pin with the endface of left body
Simultaneously in the pin hole of valve body and left body.
Wherein, positioning pin is located at metal oval pad periphery.
Wherein, threaded fastener includes studs and hex nut.
Further, the front end O-ring seals B is equipped with one of retaining ring.
Further, valve seat bearing assembly further includes filler and packing press ring, and packing press ring is located at the end face of valve seat bearing
Between left body, between packing press ring and left body be equipped with helical spring, filler be located at packing press ring, valve seat support and left body it
Between.
It is further preferred that filler and the contact surface of valve seat bearing are inclined surface.
Preferably, valve seat pressure ring and valve seat bearing are welded.
Compared with prior art, the utility model has the following beneficial effects:
1, between the utility model valve body and left body by 1 metal oval pad and 1 O-ring seals A jointly seal make
With increasing sealing reliability；Valve seat bearing, using welding, efficiently solves valve seat bearing and valve seat pressure ring with valve seat pressure ring
It is easy the problem of loosening, prevents valve base sealing from failing, reduces the risk of valve leak, improve the safety of valve, is extended
The service life of valve；
2, the oval ring of metal material can bear higher pressure, and corrosion resistance is strong；In studs and hexagonal spiral shell
Under female preload effect, increases required for the sealing of metal oval pad than pressure, middle flange and seat leakage can be effectively prevent；
3, by positioning finger setting between valve body and left body, improve assembling accuracy；
4, the valve seat bearing assembly in the utility model especially has more particle under high-pressure medium effect in the medium
Deng under the operating condition compared with impurity, O-ring seals can be protected, avoids O-ring seals impaired, extends the service life of O-ring seals.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of valve seat bearing assembly；
In figure: 1- valve body, 2- positioning pin, 3- metal oval pad, 4-O shape sealing ring A, 5- sphere, 6- valve seat bearing group
Part, 7- hex nut, 8- studs, the left body of 9-, the bearing of 61- valve seat, 62- valve seat, 63- valve seat pressure ring, 64-O shape sealing ring
B, 65- filler, 66- packing press ring, 67- helical spring, 68- retaining ring.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
As shown in Figure 1, high pressure valve flange disclosed by the utility model and valve base sealing structure, including valve body 1, sphere 5
With left body 9, valve body 1 and left body 9 are affixed by threaded fastener, wherein threaded fastener includes studs 8 and hex nut
7.It is equipped with sphere 5 in valve body 1, valve seat bearing assembly 6 is equipped between sphere 5 and left body 9.O shape is equipped between valve body 1 and left body 9
Sealing ring A4 and metal oval pad 3, O-ring seals A4 provide axial seal, and metal oval pad 3 provides end face seal.Valve body 1 with
The endface of left body 9 is equipped with the groove for installing metal oval pad 3, and metal oval pad 3 is mounted in valve body 1 and left body 9 simultaneously
Groove in.
Valve seat bearing assembly 6 includes that valve seat bearing 61, valve seat 62 and valve seat pressure ring 63, valve seat 62 are mounted on valve seat pressure ring
In slot between 63 and valve seat bearing 61, valve seat 62 is compressed by tooling, so that 62 tail portion of valve seat is supported 61 with valve seat and fits closely,
And the ratio pressure that 62 tail portion of valve seat generates is greater than the ratio pressure of valve base sealing, to realize close between valve seat and valve seat bearing
Envelope；The connection type of valve seat bearing 61 and valve seat pressure ring 63 is welding, and valve seat bearing 61 forms one with valve seat pressure ring 63, do not have
Gap, to realize the sealing between valve seat bearing 61 and valve seat pressure ring 63.
It is sealed between valve seat bearing 61 and left body 9 by O-ring seals B64, and the front end O-ring seals B64 increases by one
Road retaining ring 68 prevents O-ring seals B64 from flowing away from the gap of valve seat bearing 61 and left body 9 under the action of high pressure power media
Damage, to extend the service life of O-ring seals B64.
Valve seat bearing assembly 6 further includes filler 65 and packing press ring 66, and packing press ring 66 is located at the end face of valve seat bearing 61
Between left body 9, helical spring 67 is equipped between packing press ring 66 and left body 9, filler 65 is located at packing press ring 66, valve seat bearing
Between 61 and left body 9.The elastic force of helical spring 67 is passed into filler 65 by packing press ring 66, in valve seat bearing 61 and a left side
One of sealing is formd between body 9 again, the contact surface that filler 65 and valve seat support 61 is inclined surface, in the effect of spring thrust
Under, self-sealing is formed between filler 65 and valve seat bearing 61, valve seat bearing 61 and left body 9.Particle, ash in filler energy block media
The impurity such as dirt, to also extend the service life of O-ring seals.
It is sealed jointly between valve body 1 and left body 9 by 1 O-ring seals of metal oval pad 3 and 1 A4, metal
The oval ring of material can bear higher pressure, and corrosion resistance is strong, can effectively prevent middle flange leakage；And left 9 He of body
There are the gaps 1mm between valve body 1 increases metal oval pad 3 and seals institute under the preload effect of studs 8 and hex nut 7
The ratio pressure needed.The elastic force that helical spring 67 provides is transmitted on valve seat 62 by valve seat bearing 61, sufficient amount of spiral
Spring 67 provides must be than pressure, to realize between sphere 5 and valve seat 62 needed for sealing between valve seat 62 and sphere 5
Sealing.
Valve seat bearing assembly in the utility model especially has more particle etc. under high-pressure medium effect in the medium
Compared under the operating condition of impurity, O-ring seals can be protected, avoids O-ring seals impaired, extends the service life of O-ring seals；And
Valve seat bearing, using welding, efficiently solves the problems, such as that valve seat bearing and valve seat pressure ring are easy to loosen, prevents with valve seat pressure ring
Valve base sealing failure, reduces the risk of valve leak, improves the safety of valve, extend the service life of valve.
In another embodiment, high pressure valve flange and valve base sealing structure further include positioning pin 2, valve body 1 and a left side
There is the pin hole being adapted to positioning pin 2 in the endface of body 9, and positioning pin 2 in the pin hole of valve body 1 and left body 9, positions simultaneously
Pin 2 is located at 3 periphery of metal oval pad.It is positioned between valve body 1 and left body 9 by positioning pin 2, assembling accuracy can be improved.
Certainly, the utility model can also have other numerous embodiments, without departing substantially from the spirit of the present invention and its essence
In the case where, those skilled in the art can make various corresponding changes and modifications, but these according to the utility model
Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (10)
1. a kind of high pressure valve flange and valve base sealing structure, including valve body (1), sphere (5) He Zuoti (9), valve body (1) and a left side
Body (9) is affixed by threaded fastener, it is characterised in that: O-ring seals A (4) and gold are equipped between valve body (1) and left body (9)
Belong to oval ring (3), is equipped with valve seat bearing assembly (6) between sphere (5) and left body (9), the valve seat bearing assembly (6) includes valve
Seat bearing (61), valve seat (62) and valve seat pressure ring (63), valve seat (62) is mounted on valve seat pressure ring (63) and valve seat support (61) it
Between slot in, valve seat pressure ring (63) and valve seat bearing (61) are affixed, and valve seat, which supports, is equipped with the sealing of O shape between (61) and left body (9)
It encloses B (64).
2. high pressure valve flange according to claim 1 and valve base sealing structure, it is characterised in that: O-ring seals A (4)
Axial seal is provided, metal oval pad (3) provides end face seal.
3. high pressure valve flange according to claim 1 or 2 and valve base sealing structure, it is characterised in that: the valve body (1)
It is equipped with the groove for installing metal oval pad (3) with the endface of left body (9), metal oval pad (3) is mounted in valve body simultaneously
(1) in the groove of He Zuoti (9).
4. high pressure valve flange according to claim 1 or 2 and valve base sealing structure, it is characterised in that: further include positioning
It sells (2), valve body (1) has the pin hole being adapted to positioning pin (2) with the endface of left body (9), and positioning pin (2) is mounted in valve body simultaneously
(1) in the pin hole of He Zuoti (9).
5. high pressure valve flange according to claim 4 and valve base sealing structure, it is characterised in that: positioning pin (2) is located at
Metal oval pad (3) periphery.
6. high pressure valve flange according to claim 1 and valve base sealing structure, it is characterised in that: threaded fastener includes
Studs (8) and hex nut (7).
7. high pressure valve flange according to claim 1 and valve base sealing structure, it is characterised in that: O-ring seals B (64)
Front end is equipped with one of retaining ring (68).
8. high pressure valve flange according to claim 1 or claim 7 and valve base sealing structure, it is characterised in that: valve seat bearing group
Part (6) further includes filler (65) and packing press ring (66), and packing press ring (66) is located at the end face and left body (9) of valve seat bearing (61)
Between, helical spring (67) are equipped between packing press ring (66) and left body (9), filler (65) is located at packing press ring (66), valve seat
It supports between (61) He Zuoti (9).
9. high pressure valve flange according to claim 8 and valve base sealing structure, it is characterised in that: filler (65) and valve seat
The contact surface for supporting (61) is inclined surface.
10. high pressure valve flange according to claim 1 and valve base sealing structure, it is characterised in that: valve seat pressure ring (63)
With valve seat bearing (61) welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821273136.XU CN208750056U (en) | 2018-08-08 | 2018-08-08 | A kind of high pressure valve flange and valve base sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821273136.XU CN208750056U (en) | 2018-08-08 | 2018-08-08 | A kind of high pressure valve flange and valve base sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208750056U true CN208750056U (en) | 2019-04-16 |
Family
ID=66059792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821273136.XU Active CN208750056U (en) | 2018-08-08 | 2018-08-08 | A kind of high pressure valve flange and valve base sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208750056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552649A (en) * | 2019-08-27 | 2019-12-10 | 重庆新泰机械有限责任公司 | Metal sealing structure with curved surface |
-
2018
- 2018-08-08 CN CN201821273136.XU patent/CN208750056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552649A (en) * | 2019-08-27 | 2019-12-10 | 重庆新泰机械有限责任公司 | Metal sealing structure with curved surface |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 67, Section 1, Xueshan Avenue, Dayi County, Chengdu City, Sichuan Province, 611330 Patentee after: Chengdu Chenggao Valve Co.,Ltd. Address before: 610000 Industrial Road, Jinyuan Town, Dayi County, Chengdu, Sichuan Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd. |