CN108561571A - A kind of butterfly valve seat - Google Patents
A kind of butterfly valve seat Download PDFInfo
- Publication number
- CN108561571A CN108561571A CN201810670974.9A CN201810670974A CN108561571A CN 108561571 A CN108561571 A CN 108561571A CN 201810670974 A CN201810670974 A CN 201810670974A CN 108561571 A CN108561571 A CN 108561571A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- rubber sleeve
- flange
- seat rubber
- 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 claims abstract description 30
- 230000013011 mating Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004073 vulcanization 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
- 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
- F16K1/42—Valve seats
-
- 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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of butterfly valve seats, belong to valve technology field, including valve seat rubber sleeve and valve seat housing, the valve seat housing coaxial sleeve is set to outside the valve seat rubber sleeve and is in close contact with the valve seat rubber sleeve, the valve seat rubber sleeve medial surface includes valve base sealing cylinder and two valve seat non-tight conical surfaces, valve base sealing cylinder both ends are connect with the small end of the valve seat non-tight conical surface respectively, the valve base sealing cylinder and valve seat non-tight conical surface coaxial arrangement.During opening and closing, butterfly plate is rotated to valve base sealing cylinder both sides and the valve seat non-tight taper-face contact being obliquely installed, and the frictional force between butterfly plate and valve seat rubber sleeve is effectively reduced, to reduce the driving torque of valve rod.
Description
Technical field
The present invention relates to valve technology fields, more particularly to a kind of butterfly valve seat.
Background technology
Valve seat is one of major part of butterfly valve, the existing following defect of butterfly valve seat generally existing：First, structure compares
Single, for butterfly valve during opening and closing, the frictional force between butterfly plate and valve seat rubber sleeve is excessive, causes valve rod driving torque
Excessive, valve opening and closing is difficult, while valve seat rubber sleeve is easy to wear, and service life is short, and maintenance cost is high；Second, valve seat rubber sleeve
It is combined together between valve seat housing by heating vulcanization, after causing valve seat rubber sleeve to wear, it is difficult to by its detachable maintaining, very
To need to be by entire peripheral structure dismounting and change together；Third, the abrasion of valve rod mounting hole or deformation cause to deposit between valve rod and hole wall
In gap, valve seat is contacted with flange for face, and above structure can cause liquid to reveal, and sealing effect is bad；Therefore, market there is an urgent need for
It is a kind of it is easy to operate it is laborsaving, durable, easy to disassemble repair, good airproof performance butterfly valve seat.
Invention content
The object of the present invention is to provide a kind of butterfly valve seats, to solve the above-mentioned problems of the prior art, make butterfly valve valve
Bar torque reduces, and repair easy to disassemble extends the service life of valve seat, improves the sealing performance of valve seat.
To achieve the above object, the present invention provides following schemes：
The present invention provides a kind of butterfly valve seat, including：Valve seat rubber sleeve and valve seat housing, the valve seat housing are coaxially arranged
It is in close contact in outside the valve seat rubber sleeve and with the valve seat rubber sleeve, the valve seat rubber sleeve medial surface includes valve seat
Seal cylinder and two valve seat non-tight conical surfaces, valve base sealing cylinder both ends respectively with the valve seat non-tight conical surface
Small end connection, the valve base sealing cylinder and the valve seat non-tight conical surface coaxial arrangement.
Optionally, the valve seat housing is that interference fit connects with the valve seat rubber sleeve.
Optionally, valve rod mounting hole, the valve seat rubber sleeve side wall are diametrically provided on the valve seat rubber sleeve
On in the valve rod mounting hole be provided at both ends with the annular flange to extend radially outwardly along the valve seat rubber sleeve, the valve rod
Mounting hole runs through the annular flange, is put on outside the valve seat and is provided with flange hole, and it is logical that the flange is inserted into the flange
Kong Zhong, and the outer wall of the flange and the inner wall of the flange hole fit closely.
Optionally, a gasket seal is provided with outside the annular flange, the thickness of the valve seat housing is equal to the flange
The sum of height and the gasket seal thickness.
Optionally, several valve stem seal bulge loops, institute have been arranged circumferentially on the valve rod mounting hole hole wall of the valve seat rubber sleeve
It states valve stem seal bulge loop and is integrally formed with the valve seat rubber sleeve and is arranged, after valve rod is inserted into the valve rod mounting hole, the valve
Bar sealing bulge loop is fitted closely by natural resiliency on valve rod outer wall.
Optionally, the valve seat rubber sleeve is more than the thickness of other positions in the thickness of the valve rod position of mounting hole.
Optionally, circumferential direction is coaxially arranged with several flanges on the annular end face of the both-side opening periphery of the valve seat rubber sleeve
Sealing ring, the flange seal ring are integrally formed with the valve seat rubber sleeve, and the flange seal ring and the valve seat rubber
Set is coaxially disposed, and seal groove is formed between the adjacent flange seal ring.
Optionally, the angle between the valve seat non-tight conical surface and the valve base sealing cylindrical axis is more than 10 °.
The present invention achieves following technique effect compared with the existing technology：
Butterfly valve seat provided by the invention, it is close by the mutual angled valve seat of medial surface setting in valve seat rubber sleeve
Cylinder and two valve seat non-tight conical surfaces are sealed, are effectively reduced in valve opening and closing process between butterfly plate and valve seat rubber sleeve
Frictional force, to reduce the driving moment of valve rod so that valve operation is simply laborsaving；
Further, valve seat housing is that interference fit connects with valve seat rubber sleeve, and staff can remove valve seat rubber easily
Gum cover is repaired or replaced, and saves material and maintenance cost；
Further, valve seat rubber sleeve stretches into the annular of the flange hole of valve seat housing in the setting of the both ends of valve rod mounting hole
The setting of flange and annular flange external seal gasket can effectively prevent seam of the liquid between valve seat rubber sleeve and valve seat housing
Gap is revealed；The valve stem seal bulge loop being arranged circumferentially on valve rod mounting hole hole wall can effectively prevent liquid from valve rod mounting hole hole wall with
Gap leakage between valve rod；Being arranged for flange seal ring realizes annular linearly on the contact surface of valve seat rubber sleeve and flange
Sealing；The above measure improves the sealing performance of valve seat.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is butterfly valve seat provided by the invention along the sectional view perpendicular to valve rod mounting hole direction；
Fig. 2 is the vertical view of butterfly valve seat provided by the invention；
Fig. 3 is the sectional view along valve rod mounting hole axis of butterfly valve seat provided by the invention；
In figure：1- valve seat rubber sleeves；2- valve seat housings；3- flange seal rings；4- valve base sealing cylinders；5- valve seat non-tights
The conical surface；6- seal grooves；7- valve rod mounting holes；8- valve stem seal bulge loops；9- annular flanges；10- flange holes.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of butterfly valve seats, to solve the above-mentioned problems of the prior art, make butterfly valve valve
Bar torque reduces, and repair easy to disassemble extends the service life of valve seat, improves the sealing performance of valve seat.
The present invention provides a kind of butterfly valve seat, including valve seat rubber sleeve and valve seat housing, the valve seat housing are coaxially arranged
It is in close contact in outside the valve seat rubber sleeve and with the valve seat rubber sleeve, the valve seat rubber sleeve medial surface includes valve seat
Seal cylinder and two valve seat non-tight conical surfaces, valve base sealing cylinder both ends respectively with the valve seat non-tight conical surface
Small end connection, the valve base sealing cylinder and the valve seat non-tight conical surface coaxial arrangement.
Butterfly valve seat provided by the invention, it is close by the mutual angled valve seat of medial surface setting in valve seat rubber sleeve
Cylinder and two valve seat non-tight conical surfaces are sealed, are effectively reduced in valve opening and closing process between butterfly plate and valve seat rubber sleeve
Frictional force, to reduce the driving moment of valve rod so that valve operation is simply laborsaving.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
The present invention provides a kind of butterfly valve seat, including：Valve seat rubber sleeve 1 and valve seat housing 2, valve seat housing 2 are coaxially arranged
It is in close contact outside valve seat rubber sleeve 1 and with valve seat rubber sleeve 1,1 medial surface of valve seat rubber sleeve includes valve base sealing cylinder 4 and two
A valve seat non-tight conical surface 5,4 both ends of valve base sealing cylinder are connect with a valve seat non-tight conical surface 5 respectively, valve base sealing cylinder
4 and the valve seat non-tight conical surface 5 be coaxially disposed, and the valve seat inner space that the valve seat non-tight conical surface 5 is surrounded is by valve seat rubber sleeve 1
Middle part gradually increases to both-side opening diameter.
Carry out valve closing motion when, driving stem drive butterfly plate rotation, when butterfly plate turn to close to be closed when, first with incline
The valve seat non-tight conical surface 5 being tiltedly arranged contacts, and finally rotates to the center of valve base sealing cylinder 4, completes valve and is closed work
Make；When carrying out valve opening action, driving stem drives butterfly plate rotation, and it is non-close that butterfly plate by valve base sealing cylinder 4 is transitioned into valve seat
The conical surface 5 is sealed, valve opening work is completed.Pass through the mutual angled valve base sealing of medial surface setting in valve seat rubber sleeve 1
Cylinder 4 and two valve seat non-tight conical surfaces 5, effectively reduce in valve opening and closing process butterfly plate and valve seat rubber sleeve 1 it
Between frictional force, to reduce the driving moment of valve rod so that valve operation is simply laborsaving.
Further, valve seat housing 2 is that interference fit connects with valve seat rubber sleeve 1.
When valve seat rubber sleeve 2 breaks down, staff can rely on its own elasticity to remove it from butterfly valve seat,
It is convenient and efficient it to be repaired or replaced.
Further, valve rod mounting hole 7 is diametrically provided on valve seat rubber sleeve 1, valve seat rubber sleeve 1 is pacified in valve rod
Dress hole 7 is provided at both ends with the annular flange 9 to extend radially outwardly along valve seat rubber sleeve 1, and valve rod mounting hole 7 runs through annular flange
9, be provided with flange hole 10 on valve seat housing 2, annular flange 9 is inserted into flange hole 10, and the outer wall of annular flange 9 with
The inner wall of flange hole 10 fits closely.
Outwardly extending annular flange 9 realizes the effective of between 2 contact surface of valve seat rubber sleeve 1 and valve seat housing gap
It blocks, prevents highly pressurised liquid along the gap leakage.
Further, be provided with a gasket seal outside annular flange 9, the thickness of valve seat housing 2 be equal to flange height with it is close
The sum of gasket thickness.
Further, several valve stem seal bulge loops 8, valve have been arranged circumferentially on 7 hole wall of valve rod mounting hole of valve seat rubber sleeve 1
Bar, which seals bulge loop 8 and valve seat rubber sleeve 1 and is integrally formed, to be arranged, after valve rod is inserted into valve rod mounting hole 7, valve stem seal bulge loop 8 according to
It is fitted closely on valve rod outer wall by natural resiliency.
After installing valve rod, valve stem seal bulge loop 8 has effectively blocked highly pressurised liquid along between 7 hole wall of valve rod mounting hole and valve rod
The route that leaks in gap.
Further, thickness of the valve seat rubber sleeve 1 in 7 position of valve rod mounting hole is more than the thickness of other positions, strengthens
Valve seat rubber sleeve 1 resists the performance of valve rod mechanical pressure, extends the service life of valve seat rubber sleeve 1.
Further, circumferential direction is coaxially arranged with several flanges on the annular end face of the both-side opening periphery of valve seat rubber sleeve 1
Sealing ring 3, flange seal ring 3 are integrally formed with valve seat rubber sleeve 1, and flange seal ring 3 is coaxially disposed with valve seat rubber sleeve 1,
Seal groove 6 is formed between adjacent flanges sealing ring 3.
Flange seal ring 3 forms annular linear sealing on valve seat rubber sleeve 1 and flange contact facings, completes butterfly valve seat
After installation, by the own resilient of extruding force and flange seal ring 3 between butterfly valve seat and flange so that flange seal ring
It is fitted closely between 3 and flange, has effectively blocked leak route of the highly pressurised liquid along gap between butterfly valve seat and flange.
Further, the angle between 4 axis of the valve seat non-tight conical surface 5 and valve base sealing cylinder is more than 10 °.
Specific case is applied in the present invention, and principle and implementation of the present invention are described, above example
Illustrate the method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (8)
1. a kind of butterfly valve seat, it is characterised in that：Including：Valve seat rubber sleeve and valve seat housing, the valve seat housing are coaxially arranged
It is in close contact in outside the valve seat rubber sleeve and with the valve seat rubber sleeve, the valve seat rubber sleeve medial surface includes valve seat
Seal cylinder and two valve seat non-tight conical surfaces, valve base sealing cylinder both ends respectively with the valve seat non-tight conical surface
Small end connection, the valve base sealing cylinder and the valve seat non-tight conical surface coaxial arrangement.
2. butterfly valve seat according to claim 1, it is characterised in that：The valve seat housing and the valve seat rubber sleeve were
It is full of mating connection.
3. butterfly valve seat according to claim 1, it is characterised in that：It is diametrically provided on the valve seat rubber sleeve
Valve rod mounting hole, being provided at both ends with along the valve seat rubber sleeve diameter in the valve rod mounting hole on the valve seat rubber sleeve side wall
To outwardly extending annular flange, the valve rod mounting hole runs through the annular flange, is put on outside the valve seat and is provided with flange
Through-hole, the annular flange are inserted into the flange hole, and the outer wall of the annular flange and the flange hole is interior
Wall fits closely.
4. butterfly valve seat according to claim 3, it is characterised in that：It is provided with a gasket seal outside the annular flange,
The thickness of the valve seat housing is equal to the sum of the flange height and the gasket seal thickness.
5. butterfly valve seat according to claim 3, it is characterised in that：On the valve rod mounting hole hole wall of the valve seat rubber sleeve
Several valve stem seal bulge loops are arranged circumferentially, the valve stem seal bulge loop is integrally formed with the valve seat rubber sleeve to be arranged, and valve is worked as
After bar is inserted into the valve rod mounting hole, the valve stem seal bulge loop is fitted closely by natural resiliency on valve rod outer wall.
6. butterfly valve seat according to claim 3, it is characterised in that：The valve seat rubber sleeve is in valve rod mounting hole position
The thickness set is more than the thickness of other positions.
7. butterfly valve seat according to claim 1, it is characterised in that：The ring of the both-side opening periphery of the valve seat rubber sleeve
Circumferential direction is coaxially arranged with several flange seal rings on shape end face, and the flange seal ring is integrally formed with the valve seat rubber sleeve,
And the flange seal ring is coaxially disposed with the valve seat rubber sleeve, and seal groove is formed between the adjacent flange seal ring.
8. butterfly valve seat according to claim 1, it is characterised in that：The valve seat non-tight conical surface and the valve base sealing
Angle between cylindrical axis is more than 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810670974.9A CN108561571A (en) | 2018-06-26 | 2018-06-26 | A kind of butterfly valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810670974.9A CN108561571A (en) | 2018-06-26 | 2018-06-26 | A kind of butterfly valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108561571A true CN108561571A (en) | 2018-09-21 |
Family
ID=63554584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810670974.9A Pending CN108561571A (en) | 2018-06-26 | 2018-06-26 | A kind of butterfly valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854761A (en) * | 2019-04-08 | 2019-06-07 | 江苏神通阀门股份有限公司 | A kind of valve base sealing structure of butterfly valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0656571U (en) * | 1993-01-20 | 1994-08-05 | 積水化学工業株式会社 | Butterfly valve |
| JPH1047499A (en) * | 1996-07-31 | 1998-02-20 | Tomoe Gijutsu Kenkyusho:Kk | Seat ring for butterfly valve |
| JPH1078143A (en) * | 1996-08-30 | 1998-03-24 | Tomoe Gijutsu Kenkyusho:Kk | Seat ring for butterfly valve |
| US20150034853A1 (en) * | 2013-07-30 | 2015-02-05 | Hayward Industries, Inc. | Handle Insert For Valve |
| CN204985776U (en) * | 2015-09-17 | 2016-01-20 | 中兴凡而工业有限公司 | Valve of double -wedge butterfly valve disk seat and reliable seal |
| CN105402423A (en) * | 2015-12-15 | 2016-03-16 | 天津富赛克流体控制设备有限公司 | Soft seal butterfly valve |
| CN208474528U (en) * | 2018-06-26 | 2019-02-05 | 宁津美华工业有限公司 | A kind of butterfly valve seat |
-
2018
- 2018-06-26 CN CN201810670974.9A patent/CN108561571A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0656571U (en) * | 1993-01-20 | 1994-08-05 | 積水化学工業株式会社 | Butterfly valve |
| JPH1047499A (en) * | 1996-07-31 | 1998-02-20 | Tomoe Gijutsu Kenkyusho:Kk | Seat ring for butterfly valve |
| JPH1078143A (en) * | 1996-08-30 | 1998-03-24 | Tomoe Gijutsu Kenkyusho:Kk | Seat ring for butterfly valve |
| US20150034853A1 (en) * | 2013-07-30 | 2015-02-05 | Hayward Industries, Inc. | Handle Insert For Valve |
| CN204985776U (en) * | 2015-09-17 | 2016-01-20 | 中兴凡而工业有限公司 | Valve of double -wedge butterfly valve disk seat and reliable seal |
| CN105402423A (en) * | 2015-12-15 | 2016-03-16 | 天津富赛克流体控制设备有限公司 | Soft seal butterfly valve |
| CN208474528U (en) * | 2018-06-26 | 2019-02-05 | 宁津美华工业有限公司 | A kind of butterfly valve seat |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854761A (en) * | 2019-04-08 | 2019-06-07 | 江苏神通阀门股份有限公司 | A kind of valve base sealing structure of butterfly valve |
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