CN108869856A - From pressure seal steel valve - Google Patents
From pressure seal steel valve Download PDFInfo
- Publication number
- CN108869856A CN108869856A CN201810858374.5A CN201810858374A CN108869856A CN 108869856 A CN108869856 A CN 108869856A CN 201810858374 A CN201810858374 A CN 201810858374A CN 108869856 A CN108869856 A CN 108869856A
- Authority
- CN
- China
- Prior art keywords
- valve
- flow media
- pressure
- head tank
- gasket
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 23
- 239000010959 steel Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 4
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 206010015866 Extravasation Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000036251 extravasation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
One kind is from pressure seal steel valve, including valve body, valve deck, valve rod and gasket seal, the gasket seal is a kind of from pressure seal gasket, have in the gasket seal and may make the flow media of flow media inflow from head tank, the flow media has outer wall from head tank, the outer wall is elastomeric element, the outer wall expands under the flow media pressure effect in flow media head tank to far from the direction inside slot, therefore sealed faying face will not only be separated because of flow media pressure, make sealed faying face closer under the action of flow media pressure instead, further such that the outer wall of gasket seal and valve deck and valve seat are closer in combination, medium is effectively prevented to exosmosis, with preferable sealing performance, achieve the purpose that zero infiltration.
Description
Technical field
The present invention relates to valve fields, and in particular to a kind of from pressure seal steel valve.
Background technique
There are many valve type on pipeline, and wherein steel valve is a kind of common valve, for control empty gas and water,
The cutting of the various mobility media such as steam or the size for adjusting flow, the opening and closing element of steel valve is the valve plate of stopper, sealing
Face is in plane or the conical surface, and valve plate goes up and down for linear motion in company with valve rod.Existing steel valve is mainly by valve body, valve deck, valve rod
And valve plate composition, it is equipped with gasket seal between valve deck and valve rod, valve deck and valve body and avoids flowing for the sealing to flow media
Dynamic medium is leaked along these binding sites, but due in valve flow media often there is higher pressure, and the pressure is general
Act on the junction between gasket seal and valve deck, gasket seal and valve body or valve rod and gasket seal（Referred to collectively below as
Sealed faying face）, therefore excessively high flow media pressure can form centrifugation in sealed faying face, so that sealing combines
Face tendency generates gap, easily passes through sealed faying face so as to cause flow media to exosmosis, and then influence sealing performance.
Summary of the invention
In order to overcome the shortcomings of that existing valve seal faying face easily reveals flow media, the present invention provides a kind of close from pressure
Steel valve is sealed, should be had from pressure seal steel valve using bellows and from the structure of pressure seal gasket and spacing shim
There is preferable sealing performance, reaches zero infiltration.
The technical scheme is that：It should be from pressure seal steel valve, including valve body, valve plate, valve rod and valve deck, valve body
Valve plate is inside installed, the valve plate is connected with valve rod, and valve rod is externally provided with bellows, has gasket on the steel valve
Piece, the gasket seal have flow media from head tank, the gasket inside gasket in place of centre bore and outer ring
Piece towards having flow media inflow hole on the surface of flow media, the flow media of the gasket seal from head tank have with
The channel that the flow media inflow hole communicates, the flow media pass through flow media inflow hole under the effect of the pressure and flow into
The flow media is from head tank.The flow media is elastomeric element from the outer wall of head tank, and outer wall is in flow media pressure
It is expanded under flow media pressure effect in slot to far from the direction inside slot, so that sealed faying face is in flow media pressure
It is closer under the action of power.
The upper end of the valve deck is equipped with the valve stem nut being able to rotate, and valve stem nut is matched with the screw rod on valve rod.
Handwheel is installed on the valve stem nut.
Spacing shim is equipped on the outside of gasket seal edge, spacing shim is clamped between valve body and valve deck；Bellows
Lower end is equipped with the gasket with bellows one, and valve rod is equipped with the shaft shoulder, and gasket is stuck in above the shaft shoulder and welds with shaft shoulder periphery.
The spacing shim is made of 304 steel wires with graphite.
The present invention has the advantages that：Due to taking above-mentioned technical proposal, bellows, gasket seal and spacing shim
Medium is isolated with valve rod, forms static seal structure, spacing shim is compressed by valve body and valve deck, can be carried biggish work and is situated between
Matter pressure, while gasket seal is flowing into flow media under the pressure effect of the flow media of head tank, the flow media
It is expanded outward from head tank, so that the outer wall of gasket seal and valve deck and valve seat are closer in combination, so that sealing combines
Face will not be separated because of flow media pressure, effectively prevent medium to exosmosis, have preferable sealing performance, reach zero infiltration
Saturating purpose.
Detailed description of the invention
Attached drawing 1 is structure sectional view of the invention.
Attached drawing 2 is gasket seal top view of the invention.
Attached drawing 3 is gasket seal cross-sectional view of the invention.
1- valve body, 2- handwheel, 3- valve rod, 4- bellows, 5- gasket seal, 6- valve deck, 5-1 flow media inflow hole, 5-2
Inner ring flow media is from head tank, and 5-3 outer ring flow media is from head tank, 5-4 outer edge.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings：
As shown in Figure 1, a kind of installation from pressure seal steel valve, including valve body 1, valve plate 2, valve rod 3 and valve deck 6, valve body 1
There is valve plate 2, the valve plate 2 is connected with valve rod 3, is cased with bellows 4 outside valve rod 3,4 upper end of bellows is welded with sealing
The outside of gasket 5,5 edge of gasket seal is equipped with spacing shim, and spacing shim is clamped between valve body 1 and valve deck 6.Due to adopting
Above-mentioned technical proposal is taken, medium is isolated with valve rod 3 with spacing shim for bellows 4, gasket seal 5, forms static seal structure, close
Gasket 5 is by further increasing the bonding tightness of sealed faying face from pressure, and spacing shim is pressed in valve body 1 and valve deck 6
Under tight active force, biggish working medium pressure can be carried, effectively prevents medium along valve rod 3 and sealed faying face to extravasation
Thoroughly, there is preferable sealing performance.
The spacing shim is made of 304 steel wires with graphite.1 soft seal body graphite of spacing shim is mutually tied with 304 steel wires
It closes, spacing shim is not high to the contact surface required precision of valve body 1 and valve deck 6, has good limit effect.
The upper end of the valve deck 6 is equipped with the valve stem nut being able to rotate, and the screw rod on valve stem nut and valve rod 3 matches
It closes.Rotary valve rod nut can be such that valve rod 3 rises or falls, and then open or close valve plate 2.
Handwheel is installed on the valve stem nut.The present embodiment using manual operation, can also using motor, air pressure and
Hydraulic progress driving stem nut rotation.
As shown in Figures 2 and 3, the gasket seal is made of elastic material, and flowing is provided on the gasket seal and is situated between
Matter inflow hole 5-1, gasket seal are internally provided with flow media from head tank 5-2 and 5-3, when valve body works in systems,
The intracorporal flow media of valve passes through flow media inflow hole 5-1 and flow media inflow hole under the action of internal system pressure
Flow media is flowed into from head tank, so that flow media is from outside head tank from the channel between head tank with flow media
Wall is expanded away from flowing from the direction inside head tank under the action of flow media pressure, to realize from pressure compaction
The effect of sealed faying face.Further, to include inner ring flow media from head tank flow from head tank and outer ring for the flowing
Medium is from head tank.
The sealing effect between valve rod 3 and gasket seal, gasket seal and valve deck valve body, anti-fluid stopping can be improved in the present invention
The loss of dynamic medium, to ensure environment and personnel not by toxic or corrosive media injury.In valve opening and closing overall process, valve rod
3 only make elevating movement, avoid rotary lifting movement, so as to improve the dynamic environment of gasket seal, extend the use of valve
Service life, particularly suitable for the dangerous flow media piping such as inflammable, explosive and toxic and the occasion more stringent to environmental protection,
Safe, anti-pollution and environmental protection requirement can be reached.
Claims (10)
1. a kind of from pressure seal steel valve, including valve body, valve deck, valve rod and gasket seal, it is characterised in that：The sealing
Gasket is that a kind of have the flow media that may make flow media to flow into from pressure from pressure seal gasket, the gasket seal
Slot, the flow media have outer wall from head tank, and the outer wall is elastomeric element, and the outer wall is in flow media head tank
The effect of flow media pressure under expanded to far from the direction inside slot so that gasket seal and valve body and gasket seal with
Valve deck is closer in combination under the action of flow media pressure.
2. one kind is as described in claim 1 from pressure seal steel valve, it is characterised in that：The gasket seal direction flowing
Also there is flow media inflow hole, flow media enters flow media certainly by the flow media inflow hole on the surface of medium
Head tank.
3. one kind is as described in claim 1 from pressure seal steel valve, it is characterised in that：Also have inside the gasket seal
There are connection flow media inflow hole and flow media from the channel of head tank.
4. one kind is as described in claim 1 from pressure seal steel valve, it is characterised in that：It installs the upper end of the valve deck
There is the valve stem nut being able to rotate, valve stem nut is matched with the screw rod on valve rod.
5. one kind is as described in claim 1 from pressure seal steel valve, it is characterised in that：It is installed on the valve stem nut
There is handwheel.
6. one kind is as described in claim 1 from pressure seal steel valve, it is characterised in that：Outside the edge of the gasket seal
Side is additionally provided with spacing shim, and the spacing shim is clamped between valve body and valve deck.
7. one kind is as described in claim 1 from pressure seal steel valve, it is characterised in that：The spacing shim is by 304
Steel wire and graphite form.
8. one kind is as described in claim 1 from pressure seal steel valve, it is characterised in that：The flow media is from head tank
It is two, one of them is inner ring flow media from head tank, the other is outer ring flow media is from head tank.
9. one kind is as described in claim 1 from pressure seal steel valve, it is characterised in that：It is described from pressure seal steel valve
It is additionally provided with bellows in the valve body of door, the bellows is located at outside valve rod.
10. one kind is as claimed in claim 9 from pressure seal steel valve, it is characterised in that：The gasket seal is located at wave
Line pipe is close to valve deck side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858374.5A CN108869856A (en) | 2018-07-31 | 2018-07-31 | From pressure seal steel valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858374.5A CN108869856A (en) | 2018-07-31 | 2018-07-31 | From pressure seal steel valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869856A true CN108869856A (en) | 2018-11-23 |
Family
ID=64306480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810858374.5A Pending CN108869856A (en) | 2018-07-31 | 2018-07-31 | From pressure seal steel valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869856A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE933842C (en) * | 1953-06-13 | 1955-10-06 | Voith Gmbh J M | Gap seal |
| US2837360A (en) * | 1953-08-20 | 1958-06-03 | United Aircraft Prod | Self energizing sealing ring |
| JP2000317009A (en) * | 1999-05-13 | 2000-11-21 | Senju Sprinkler Kk | Sprinkler head |
| JP2014159844A (en) * | 2013-02-20 | 2014-09-04 | Kurimoto Ltd | Primary eccentricity type butterfly valve |
| CN203857059U (en) * | 2014-06-06 | 2014-10-01 | 永嘉县嘉仕达阀门有限公司 | Novel stop valve |
| CN205155165U (en) * | 2015-12-03 | 2016-04-13 | 科福龙阀门集团有限公司 | Self -sealing pressure stop valve |
| CN205504017U (en) * | 2016-04-14 | 2016-08-24 | 江苏神通阀门股份有限公司 | Self -sealing structure of pressurization butterfly valve |
| RU2612683C2 (en) * | 2015-08-27 | 2017-03-13 | Закрытое акционерное общество "Научно производственное объединение Регулятор" | Axial type control valve (versions) |
-
2018
- 2018-07-31 CN CN201810858374.5A patent/CN108869856A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE933842C (en) * | 1953-06-13 | 1955-10-06 | Voith Gmbh J M | Gap seal |
| US2837360A (en) * | 1953-08-20 | 1958-06-03 | United Aircraft Prod | Self energizing sealing ring |
| JP2000317009A (en) * | 1999-05-13 | 2000-11-21 | Senju Sprinkler Kk | Sprinkler head |
| JP2014159844A (en) * | 2013-02-20 | 2014-09-04 | Kurimoto Ltd | Primary eccentricity type butterfly valve |
| CN203857059U (en) * | 2014-06-06 | 2014-10-01 | 永嘉县嘉仕达阀门有限公司 | Novel stop valve |
| RU2612683C2 (en) * | 2015-08-27 | 2017-03-13 | Закрытое акционерное общество "Научно производственное объединение Регулятор" | Axial type control valve (versions) |
| CN205155165U (en) * | 2015-12-03 | 2016-04-13 | 科福龙阀门集团有限公司 | Self -sealing pressure stop valve |
| CN205504017U (en) * | 2016-04-14 | 2016-08-24 | 江苏神通阀门股份有限公司 | Self -sealing structure of pressurization butterfly valve |
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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 |
Application publication date: 20181123 |
|
| RJ01 | Rejection of invention patent application after publication |