CN207229802U - Sealing structure for valve core for gate valve outlet section - Google Patents
Sealing structure for valve core for gate valve outlet section Download PDFInfo
- Publication number
- CN207229802U CN207229802U CN201721194544.1U CN201721194544U CN207229802U CN 207229802 U CN207229802 U CN 207229802U CN 201721194544 U CN201721194544 U CN 201721194544U CN 207229802 U CN207229802 U CN 207229802U
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- China
- Prior art keywords
- valve core
- valve
- spool
- core channel
- flange
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Abstract
A kind of sealing structure for valve core for gate valve outlet section is provided, including valve body, spool and hubbed flange, valve inner is axially arranged with valve core channel, valve body lower portion side is formed with the flange connecting hole that axis is vertical with valve core channel axis and is connected with valve core channel, hubbed flange one end is stretched into flange connecting hole and end be placed in valve core channel edge after be fixedly connected with valve body static seal, valve body and hubbed flange are internally provided with its axis and intersect vertical medium channel with valve core channel axis, spool and valve core channel are cylindrical-shaped structure, spool is placed in valve core channel, the plane static and dynamic sealing structure that rigid seal pair is formed when spool moves down into valve core channel bottom is equipped between spool side and hubbed flange opposite face.The utility model spool and valve core channel is made cylindric, not only reduces difficulty of processing, and this structure is easy to form rigid seal pair simple and reliable for structure between spool and hubbed flange, improves sealing performance, reduces slip.
Description
Technical field
A kind of the utility model category valve technology field, and in particular to sealing structure for valve core for gate valve outlet section.
Background technology
Nuclear power, petrochemical industry, national standard are defeated in storage and pipeline for severe corrosive, strong radioactive and hypertoxicity medium
Inside and outside slip level requirement during sending is very stringent.But in practical work, asked since valve sealing structure exists
Topic, particularly under high-temperature and high-pressure conditions, by sealing material, sealing structure, radioactivity, sealing force and manufacturing process etc.
Condition limits, and many valves are extremely difficult to the requirement of national standard, and valve leak rate is high, and service life is very short.It is therefore desirable to
It is proposed to improve.
Utility model content
The technical problem that the utility model solves：A kind of sealing structure for valve core for gate valve outlet section, this practicality are provided
It is new spool and valve core channel to be made cylindric, not only reduce difficulty of processing, and this structure be easy in spool and
Rigid seal pair simple and reliable for structure is formed between hubbed flange, improves sealing performance, reduces slip.
The technical solution adopted in the utility model：For the sealing structure of valve core for gate valve outlet section, including valve body, spool and
Hubbed flange, the valve inner are axially arranged with valve core channel, and the valve body lower portion side is formed with axis and valve core channel axis
Flange connecting hole that is vertical and being connected with valve core channel, described hubbed flange one end is stretched into flange connecting hole and end is placed in valve
It is fixedly connected after core channel edge with valve body static seal, the valve body and hubbed flange are internally provided with its axis and valve core channel axis
Line intersects vertical medium channel, and the spool and valve core channel are cylindrical-shaped structure, and the spool adaptation is placed in spool and leads to
The closing and unlatching realized in road and by moving up and down to medium channel, between the spool side and hubbed flange opposite face
Equipped with the plane static and dynamic sealing structure that rigid seal pair is formed when spool moves down into valve core channel bottom.
Wherein, the plane static and dynamic sealing structure includes static seal body and dynamic sealing body, on the spool with hubbed flange
End face corresponds to side and is formed with a cutting plane, and the dynamic sealing body is embedded on cutting plane, and the static seal body is fixed on band
Cervical approach orchid stretches into flange connecting hole and is placed in the end at valve core channel edge, and the spool moves when moving down into valve core channel bottom
Seal shows consideration for conjunction with static seal and forms rigid seal pair.
Further, the hubbed flange, which is put on one end in valve body, is formed with screw thread, on clamp nut and hubbed flange
Threaded engagement after static seal body is fixed and clamped, the static seal body and hubbed flange fit between face by sealing ring I
Sealing.
Further, the static seal body and dynamic sealing body are made of high rigidity tungsten Nitinol.
Further, the hubbed flange is bolted to connection with valve body, and the hubbed flange and valve body are affixed
Sealed between face by sealing ring II.
The utility model compared with prior art the advantages of：
1st, spool and valve core channel are made in this programme cylindric, not only reduce difficulty of processing, and this knot
Structure is easily formed good cooperation, and sealing easy to implement, improves sealing performance；
2nd, the rigid seal of plane is formed in this programme between spool and hubbed flange by static seal body and dynamic sealing body
Pair, this sealing structure are simple and reliable, it is not easy to cause to leak, reduce slip；
3rd, static seal body and dynamic sealing body are made of high rigidity tungsten Nitinol in this programme, sealing material hardness
Greatly, it is unlikely to deform, sealing surface is less prone to scuffing, greatly extends gate valve service life.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Embodiment
1 embodiment for describing the utility model below in conjunction with the accompanying drawings.
For the sealing structure of valve core for gate valve outlet section, as shown in Figure 1, including valve body 1, spool 2 and hubbed flange 3, institute
State and valve core channel 101 is axially arranged with inside valve body 1, it is vertical with 101 axis of valve core channel that the 1 lower part side of valve body is formed with axis
And the flange connecting hole 102 connected with valve core channel 101, described 3 one end of hubbed flange is stretched into flange connecting hole 102 and end
It is fixedly connected after being placed in 101 edge of valve core channel with 1 static seal of valve body, wherein, the hubbed flange 3 passes through bolt 9 with valve body 1
It is fixedly connected, is sealed between the hubbed flange 3 and the phase veneer of valve body 1 by sealing ring II 8.The valve body 1 and with cervical approach
Orchid 3 is internally provided with its axis and intersects vertical medium channel with 101 axis of valve core channel, wherein, the spool 2 and valve core channel
101 be cylindrical-shaped structure, and the adaptation of spool 2 is placed in valve core channel 101 and is realized by moving up and down to medium channel
Closing and unlatching.Cylindrical-shaped structure is made in spool 2 and valve core channel 101, not only reduces difficulty of processing, and it is this
Structure is easily formed good cooperation, and sealing easy to implement, improves sealing performance.
It is equipped between 2 side of spool and 3 opposite face of hubbed flange when spool 2 moves down into 101 bottom of valve core channel
Form the plane static and dynamic sealing structure 10 of rigid seal pair.The plane static and dynamic sealing structure 10 includes static seal body 5 and moves close
Body 4 is sealed, side corresponding with 3 end face of hubbed flange is formed with a cutting plane 201 on the spool 2, and the dynamic sealing body 4 is embedded in
On cutting plane 201, the static seal body 5 is fixed on hubbed flange 3 and stretches into flange connecting hole 102 and be placed in valve core channel
The end at 101 edges, is formed with screw thread on one end that the hubbed flange 3 is put in valve body 1, clamp nut 6 with hubbed flange 3
Threaded engagement after static seal body 5 is fixed and clamped, the static seal body 5 and hubbed flange 3, which fit, passes through sealing between face
I 7 sealings are enclosed, dynamic sealing body 4 is bonded to form rigid seal with static seal body 5 when the spool 2 moves down into 101 bottom of valve core channel
It is secondary.Above-mentioned sealing structure is simple and reliable, it is not easy to causes to leak, reduces slip
The static seal body 5 and dynamic sealing body 4 are made of high rigidity tungsten Nitinol, and this alloy sealant material is hard
Degree is big, is unlikely to deform, good seal performance, sealing surface is less prone to scuffing, greatly extends gate valve service life.
The preferred embodiment of above-described embodiment, simply the utility model, is not used for limiting the utility model practical range,
Therefore all equivalence changes done with content described in the utility model claims, the utility model claims model should all be included in
Within enclosing.
Claims (5)
1. for the sealing structure of valve core for gate valve outlet section, including valve body (1), spool (2) and hubbed flange (3), the valve body
(1) internal to be axially arranged with valve core channel (101), valve body (1) the lower part side is formed with axis and hangs down with valve core channel (101) axis
Flange connecting hole (102) that is straight and being connected with valve core channel (101), flange connecting hole is stretched into described hubbed flange (3) one end
(102) in and end is fixedly connected after being placed in valve core channel (101) edge with valve body (1) static seal, the valve body (1) and with neck
Flange (3) is internally provided with its axis and intersects vertical medium channel with valve core channel (101) axis, it is characterised in that：The valve
Core (2) and valve core channel (101) are cylindrical-shaped structure, and spool (2) adaptation is placed in valve core channel (101) and by upper
The closing and unlatching to medium channel are realized in lower movement, are equipped with and are worked as between the opposite face of spool (2) side and hubbed flange (3)
Spool (2) forms the plane static and dynamic sealing structure (10) of rigid seal pair when moving down into valve core channel (101) bottom.
2. the sealing structure according to claim 1 for valve core for gate valve outlet section, it is characterised in that：The plane sound
Sealing structure (10) includes static seal body (5) and dynamic sealing body (4), on the spool (2) with hubbed flange (3) end face corresponding one
Side is formed with a cutting plane (201), and the dynamic sealing body (4) is embedded on cutting plane (201), and the static seal body (5) is solid
Stretched into due to hubbed flange (3) in flange connecting hole (102) and be placed in the end at valve core channel (101) edge, the spool (2)
Dynamic sealing body (4) is bonded to form rigid seal pair with static seal body (5) when moving down into valve core channel (101) bottom.
3. the sealing structure according to claim 2 for valve core for gate valve outlet section, it is characterised in that：The hubbed flange
(3) be formed with screw thread on the one end put in valve body (1), clamp nut (6) with will be quiet close after the threaded engagement on hubbed flange (3)
Envelope body (5) is fixed and clamped, and the static seal body (5) and hubbed flange (3) fit between face by sealing ring I (7) sealing.
4. the sealing structure for valve core for gate valve outlet section according to Claims 2 or 3, it is characterised in that：It is described quiet close
Envelope body (5) and dynamic sealing body (4) are made of high rigidity tungsten Nitinol.
5. the sealing structure according to claim 1 for valve core for gate valve outlet section, it is characterised in that：The hubbed flange
(3) it is fixedly connected with valve body (1) by bolt (9), passes through sealing between the hubbed flange (3) and the phase veneer of valve body (1)
Enclose II (8) sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194544.1U CN207229802U (en) | 2017-09-18 | 2017-09-18 | Sealing structure for valve core for gate valve outlet section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194544.1U CN207229802U (en) | 2017-09-18 | 2017-09-18 | Sealing structure for valve core for gate valve outlet section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229802U true CN207229802U (en) | 2018-04-13 |
Family
ID=61862656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721194544.1U Active CN207229802U (en) | 2017-09-18 | 2017-09-18 | Sealing structure for valve core for gate valve outlet section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366757A (en) * | 2017-09-18 | 2017-11-21 | 宝鸡泰华磁机电技术研究所有限公司 | Sealing structure for valve core for gate valve outlet section |
-
2017
- 2017-09-18 CN CN201721194544.1U patent/CN207229802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366757A (en) * | 2017-09-18 | 2017-11-21 | 宝鸡泰华磁机电技术研究所有限公司 | Sealing structure for valve core for gate valve outlet section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230104 Address after: Floor 5-6, Building 2-4, Tianfu Haichuang Park, No. 619, Jicui Street, Xinglong Street, Tianfu New Area, China (Sichuan) Pilot Free Trade Zone, Chengdu, 610000, Sichuan Patentee after: Chengdu Taihua Zhongcheng Technology Group Co.,Ltd. Address before: No. 195, Gaoxin Avenue, Weibin District, Baoji City, Shaanxi Province, 721000 Patentee before: BAOJI TAIHUA MAGNETIC ELECTROMECHANICAL TECHNOLOGY RESEARCH INSTITUTE CO.,LTD. |