CN107366757A - 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
- CN107366757A CN107366757A CN201710842572.8A CN201710842572A CN107366757A CN 107366757 A CN107366757 A CN 107366757A CN 201710842572 A CN201710842572 A CN 201710842572A CN 107366757 A CN107366757 A CN 107366757A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- core channel
- flange
- hubbed flange
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 230000003068 static effect Effects 0.000 claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims description 6
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 4
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 241000233855 Orchidaceae Species 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012812 sealant material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/312—Line blinds
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
A kind of sealing structure for valve core for gate valve outlet section is provided, including valve body, valve element 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, intersect vertical medium channel with valve core channel axis provided with its axis inside valve body and hubbed flange, valve element and valve core channel are cylindrical-shaped structure, valve element is placed in valve core channel, it is provided between valve element side and hubbed flange opposite face and the secondary plane static and dynamic sealing structure of rigid seal is formed when valve element moves down into valve core channel bottom.The present invention valve element 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 valve element and hubbed flange, improves sealing property, reduces slip.
Description
Technical field
The invention belongs to valve technology field, and in particular to a kind of 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, hot and hypertoxicity medium
Inside and outside slip level requirement during sending is very strict.But in practical work, asked because valve sealing structure is present
Topic, particularly under high-temperature and high-pressure conditions, by encapsulant, 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.
The content of the invention
Present invention solves the technical problem that：A kind of sealing structure for valve core for gate valve outlet section is provided, it is of the invention by valve
Core and valve core channel are made cylindric, not only reduce difficulty of processing, and this structure is easy in valve element and hubbed flange
Between form rigid seal pair simple and reliable for structure, improve sealing property, reduce slip.
The technical solution adopted by the present invention：For the sealing structure of valve core for gate valve outlet section, including valve body, valve element and with neck
Flange, the valve inner are axially arranged with valve core channel, and it is vertical with valve core channel axis that the valve body lower portion side is formed with axis
And the flange connecting hole connected with valve core channel, described hubbed flange one end is stretched into flange connecting hole and end is placed in valve element and led to
It is fixedly connected behind road edge with valve body static seal, its axis and valve core channel axis phase is provided with inside the valve body and hubbed flange
Vertical medium channel is handed over, the valve element and valve core channel are cylindrical-shaped structure, and the valve element adaptation is placed in valve core channel
And by closing and unlatching of the realization to medium channel that move up and down, it is provided between the valve element side and hubbed flange opposite face
The secondary plane static and dynamic sealing structure of rigid seal is formed when valve element 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 valve element 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 valve element 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 present invention compared with prior art the advantages of：
1st, valve element 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, easily realizes sealing, improves sealing property；
2nd, the rigid seal of plane is formed in this programme between valve element 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, encapsulant 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 structural representation of the present invention.
Embodiment
1 embodiments of the invention are described 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, valve element 2 and hubbed flange 3, institute
State and valve core channel 101 is axially arranged with inside valve body 1, it is vertical with the axis of valve core channel 101 that the bottom side of valve body 1 is formed with axis
And the flange connecting hole 102 connected with valve core channel 101, described one end of hubbed flange 3 is stretched into flange connecting hole 102 and end
It is fixedly connected after being placed in the edge of valve core channel 101 with the static seal of valve body 1, 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
Vertical medium channel is intersected in the inside of orchid 3 provided with its axis with the axis of valve core channel 101, wherein, the valve element 2 and valve core channel
101 be cylindrical-shaped structure, and the adaptation of valve element 2 is placed in valve core channel 101 and realized by moving up and down to medium channel
Closing and unlatching.Cylindrical-shaped structure is made in valve element 2 and valve core channel 101, not only reduces difficulty of processing, and it is this
Structure is easily formed good cooperation, easily realizes sealing, improves sealing property.
It is provided between the side of valve element 2 and the opposite face of hubbed flange 3 when valve element 2 moves down into 101 bottom of valve core channel
Form the secondary plane static and dynamic sealing structure 10 of rigid seal.The plane static and dynamic sealing structure 10 includes static seal body 5 and moved close
Body 4 is sealed, side corresponding with the end face of hubbed flange 3 is formed with a cutting plane 201 on the valve element 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 valve element 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.
Above-described embodiment, simply presently preferred embodiments of the present invention, is not used for limiting the scope of the present invention, therefore all with this
The equivalence changes that content described in invention claim is done, it all should be included within scope of the invention as claimed.
Claims (5)
1. for the sealing structure of valve core for gate valve outlet section, including valve body (1), valve element (2) and hubbed flange (3), the valve body
(1) internal to be axially arranged with valve core channel (101), valve body (1) the bottom side is formed with axis and hung 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 internal to intersect vertical medium channel provided with its axis 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 valve element (2) adaptation is placed in valve core channel (101) and by upper
The closing and unlatching to medium channel are realized in lower motion, are provided with and are worked as between the opposite face of valve element (2) side and hubbed flange (3)
Valve element (2) forms rigid seal secondary plane static and dynamic sealing structure (10) 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 valve element (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 valve element (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 |
|---|---|---|---|
| CN201710842572.8A CN107366757A (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 |
|---|---|---|---|
| CN201710842572.8A CN107366757A (en) | 2017-09-18 | 2017-09-18 | Sealing structure for valve core for gate valve outlet section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366757A true CN107366757A (en) | 2017-11-21 |
Family
ID=60302926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710842572.8A Pending CN107366757A (en) | 2017-09-18 | 2017-09-18 | Sealing structure for valve core for gate valve outlet section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107366757A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072622U (en) * | 1990-04-19 | 1991-03-06 | 鹤壁市通用机械厂 | Slag starch valve |
| CN103867740A (en) * | 2014-03-12 | 2014-06-18 | 赵永刚 | Thick oil thermal recovery single disc flat gate valve |
| CN105202210A (en) * | 2015-09-29 | 2015-12-30 | 赵克中 | Magnetically-driven valve device |
| CN205173535U (en) * | 2015-09-29 | 2016-04-20 | 赵克中 | Electromagnetic drive's sealing gate valve |
| US20170009891A1 (en) * | 2013-07-08 | 2017-01-12 | Alagarsamy Sundararajan | Gate Valve with Seat Assembly |
| CN207229802U (en) * | 2017-09-18 | 2018-04-13 | 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 CN201710842572.8A patent/CN107366757A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072622U (en) * | 1990-04-19 | 1991-03-06 | 鹤壁市通用机械厂 | Slag starch valve |
| US20170009891A1 (en) * | 2013-07-08 | 2017-01-12 | Alagarsamy Sundararajan | Gate Valve with Seat Assembly |
| CN103867740A (en) * | 2014-03-12 | 2014-06-18 | 赵永刚 | Thick oil thermal recovery single disc flat gate valve |
| CN105202210A (en) * | 2015-09-29 | 2015-12-30 | 赵克中 | Magnetically-driven valve device |
| CN205173535U (en) * | 2015-09-29 | 2016-04-20 | 赵克中 | Electromagnetic drive's sealing gate valve |
| CN207229802U (en) * | 2017-09-18 | 2018-04-13 | 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 |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171121 |