CN115076387A - U-shaped metal sealing butterfly valve - Google Patents
U-shaped metal sealing butterfly valve Download PDFInfo
- Publication number
- CN115076387A CN115076387A CN202210788358.XA CN202210788358A CN115076387A CN 115076387 A CN115076387 A CN 115076387A CN 202210788358 A CN202210788358 A CN 202210788358A CN 115076387 A CN115076387 A CN 115076387A
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- China
- Prior art keywords
- valve
- valve body
- sealing
- butterfly
- butterfly plate
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- 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
- F16K1/2268—Sealing means for the axis of rotation
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- 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
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- 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
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- 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
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw
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- 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
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- 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
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a U-shaped metal sealing butterfly valve which comprises a valve body, a valve rod, a butterfly plate and a sealing valve seat, wherein the valve rod is rotatably arranged in the valve body in a penetrating mode, the butterfly plate is detachably sleeved on the valve rod and is provided with a cavity, the butterfly plate is located in the cavity of the valve body, the cavity is isolated by the butterfly plate to form two mutually independent closed cavities, when the butterfly plate is opened, the two closed cavities are communicated, one end of the sealing valve seat is arranged on the inner edge surface of the valve body, the cross section of the sealing valve seat is U-shaped, an inclined conical surface is formed on the outer surface of one end, close to the sealing valve seat, of the butterfly plate, the inclined conical surface is in sealing fit with the inner wall surface of the sealing valve seat, and a sealing pressing ring for propping against the sealing valve seat is installed on the valve body. The U-shaped metal sealing butterfly valve has good sealing performance and long service life.
Description
Technical Field
The invention particularly relates to a U-shaped metal sealing butterfly valve.
Background
The pipeline is an important device for conveying media and controlling hydraulic pressure and air pressure, and the valve is commonly applied to various pipelines and used for connecting, closing and adjusting the flow, pressure and the like of the pipeline so as to meet the production requirement. The sealing form of the metal sealing butterfly valve is independent sealing without being influenced by medium pressure. The butterfly plate of the device is contacted with the sealing ring to form sealing specific pressure by the mechanical force action of the cam principle. Therefore, the bidirectional sealing can be realized regardless of the pressure of the medium. Because the metal sealing ring can move and float in the valve seat, when the medium temperature changes, the deformation of the metal material can not cause the clamping of the sealing ring to influence the reduction of the sealing function, and hard alloy is welded on the butterfly plate sealing surface of the metal sealing butterfly valve in a surfacing mode. The self-adaptive center aligning device can automatically align the center (self-adaptation), automatically overtravel compensate abrasion, automatically apply extremely high sealing specific pressure, and has no friction between sealing pairs when being closed instantly and opened instantly. The unique three-eccentric seal design of the metal seal butterfly valve enables the valve to be widely applied to a steam pipeline of a heating system. The butterfly valve is widely applied due to the advantages of simple structure, low cost, quick opening and closing and the like, generally comprises a valve body, a valve plate, a valve rod and the like, wherein a water inlet end and a water outlet end are arranged in the valve body, the valve rod is connected with the valve plate, the components are tightly matched, the valve is opened or closed through the rotation of the valve plate, and the flow of pipeline fluid is effectively controlled. In the use, because the influence of various operating modes, some fluid can permeate from the gap of valve body, so generally all need make corresponding sealing measure in the valve body, and the life-span of valve can be influenced to the good or bad of sealing performance, also can influence the normal transmission of pipeline.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the invention is to provide a U-shaped metal sealing butterfly valve.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a U type metal seal butterfly valve, includes valve body, valve rod, butterfly plate and sealed disk seat, the valve rod rotationally wear to establish with in the valve body, the butterfly plate can be dismantled ground the cover and establish on the valve rod, a cavity has in the valve body, the butterfly plate is located in the cavity of valve body, the butterfly plate will two airtight cavities that form mutual independence are kept apart to the cavity, work as when the butterfly plate is opened, two airtight cavities are linked together, the one end setting of sealed disk seat is on the inner edge face of valve body, the shape of cross section of sealed disk seat is the U type, the surface that the butterfly plate is close to the one end of sealed disk seat is formed with an inclined conical surface, inclined conical surface with the sealed laminating of internal face of sealed disk seat, install the sealed clamping ring that is used for withstanding sealed disk seat on the valve body.
Preferably, a stepped annular boss is formed at one end of the outer edge wall of the sealing pressing ring, an annular groove used for being embedded into the annular boss is formed in the valve body, and the end face of the annular boss abuts against the sealing valve seat.
Preferably, a worm gear for driving the valve rod is installed at the top of the valve body, and a T-shaped sealing ring is installed between the worm gear and the top of the valve body.
Preferably, a plurality of first sealing ring grooves are formed in the lower inner edge wall of the T-shaped sealing ring, a plurality of second sealing ring grooves are formed in the lower outer edge wall of the T-shaped sealing ring, and the first sealing ring grooves and the second sealing ring grooves are staggered at intervals in the horizontal height.
Preferably, an annular T-shaped sealing groove is formed in the top of the valve body, and the T-shaped sealing ring is installed in the T-shaped sealing groove.
Preferably, the worm gear comprises a worm gear assembly and a hand wheel for driving the worm gear assembly.
Preferably, the bottom of the valve body is provided with a bottom cover, the valve body is arranged above the bottom cover and is provided with a lower shaft sleeve, and the bottom of the valve rod is arranged in the lower shaft sleeve.
Compared with the prior art, the invention has the following beneficial effects: the cross section shape of the sealing valve seat of the U-shaped metal sealing butterfly valve is set to be U-shaped, the sealing ring can be radially expanded or positioned in the valve body, self-adjustment can be carried out under various working conditions to keep the optimal sealing position, the sealing valve seat is installed on the valve body, the butterfly valve and the sealing valve seat are in sealing fit, the sealing surface of the butterfly plate of the valve is positioned and processed in a three-eccentric position, the contact part of the sealing surface is in an elliptical shape, when the butterfly plate is in contact with the sealing valve seat, the sealing valve seat is outwards extruded to cause the butterfly plate to be completely contacted with the sealing valve seat, when the valve is opened, the contact is immediately released, the sealing valve seat returns to the original shape, and the mutual friction between the butterfly plate and the sealing valve seat is prevented. The valve can have a longer service life, meanwhile, a sealing valve seat made of a metal material is adopted, the position is limited through a sealing pressing ring, and a T-shaped sealing ring is arranged on the valve body, so that the sealing performance of the butterfly valve is improved, the service life is prolonged, the butterfly valve can be suitable for a working environment with the working temperature of-20-300 ℃, the pressure grade is suitable for PN 1.0-2.5 MPa (CL 150), and the butterfly valve is suitable for gas and liquid conveying systems of pipelines such as a heating power pipe network, metallurgy, light industry, chemical industry, electric power, petroleum, natural gas, coal gas, food, medicine, paper making, water supply and drainage, sewage treatment and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of an embodiment of the present invention 1.
Fig. 3 is a partially enlarged view schematically illustrating an embodiment of the present invention 2.
The labels in the figure are: 1. a valve body; 2. a valve stem; 3. a butterfly plate; 4. sealing the valve seat; 5. sealing the pressing ring; 6. an annular boss; 7. a worm gear transmission; 8. a T-shaped seal ring; 9. a first seal ring groove; 10. a second seal ring groove; 11. a T-shaped sealing groove; 12. a worm gear assembly; 13. a hand wheel; 14. a bottom cover; 15. a lower shaft sleeve; 16. a gasket; 17. a pin shaft; 18. and an upper shaft sleeve.
Detailed Description
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in figures 1 to 3, a U-shaped metal seal butterfly valve comprises a valve body 1, a valve rod 2, a butterfly plate 3 and a seal valve seat 4, the valve rod 2 is rotatably arranged in the valve body 1 in a penetrating way, the butterfly plate 3 is detachably sleeved on the valve rod 2, the butterfly plate 3 is fixed by a pin shaft 17, a cavity is arranged in the valve body 1, the butterfly plate 3 is positioned in the cavity of the valve body 1, the cavity is isolated by the butterfly plate 3 to form two mutually independent closed chambers, when the butterfly plate 3 is opened, the two closed chambers are communicated, one end of the sealing valve seat 4 is arranged on the inner edge surface of the valve body 1, the cross section of the sealing valve seat 4 is U-shaped, the outer surface of one end of the butterfly plate 3 close to the sealing valve seat 4 is provided with an inclined conical surface, the inclined conical surface is in sealing fit with the inner wall surface of the sealing valve seat 4, and the valve body 1 is provided with a sealing pressing ring 5 for propping against the sealing valve seat 4.
In this embodiment, the outer fringe wall one end of sealed clamping ring 5 is formed with the annular boss 6 of echelonment, offer the annular groove that is used for imbedding annular boss 6 on the valve body 1, sealed disk seat 4 is withstood to the terminal surface of annular boss 6, and sealed clamping ring 5 and valve body 1 can weld into an organic whole, conveniently restricts sealed disk seat 4.
In this embodiment, a worm gear 7 for driving the valve rod 2 is installed on the top of the valve body 1, and a T-shaped sealing ring 8 is installed between the worm gear 7 and the top of the valve body 1.
In this embodiment, a plurality of first seal ring grooves 9 have been seted up on the lower part inner edge wall of T type sealing ring 8, a plurality of second seal ring grooves 10 have been seted up on the lower part outer edge wall of T type sealing ring 8, the level interval arrangement dislocation of first seal ring groove 9 and second seal ring groove 10, first seal ring groove 9 and second seal ring groove 10 can be used to place the sealing washer, improve the leakproofness, the below that valve rod 2 is located T type sealing ring 8 is provided with axle sleeve 18, offer the mounting groove that is used for placing axle sleeve 18 on the valve body 1.
In this embodiment, an annular T-shaped sealing groove 11 is formed in the top of the valve body 1, and the T-shaped sealing ring 8 is installed in the T-shaped sealing groove 11.
In the present embodiment, the worm gear 7 includes a worm gear assembly 12 and a hand wheel 13 for driving the worm gear assembly 12.
In this embodiment, the bottom of the valve body 1 is provided with a bottom cover 14, the valve body 1 is provided with a lower shaft sleeve 15 above the bottom cover 14, the bottom of the valve rod 1 is installed in the lower shaft sleeve 15, and a sealing gasket 16 is arranged between the bottom cover 14 and the valve rod 2.
It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a U type metal seal butterfly valve which characterized in that: including valve body, valve rod, butterfly plate and sealed disk seat, the valve rod rotationally wear to establish with in the valve body, the butterfly plate can be dismantled the ground cover and establish on the valve rod, a cavity has in the valve body, the butterfly plate is located in the cavity of valve body, the butterfly plate will two airtight cavities that form mutual independence are kept apart to the cavity, work as when the butterfly plate is opened, two airtight cavities are linked together, the one end setting of sealed disk seat is on the inner edge face of valve body, the shape of cross section of sealed disk seat is the U type, the surface that the butterfly plate is close to the one end of sealed disk seat is formed with a slope conical surface, the slope conical surface with the sealed laminating of internal face of sealed disk seat, install the sealed clamping ring that is used for withstanding sealed disk seat on the valve body.
2. The U-shaped metal seal butterfly valve of claim 1, wherein: a stepped annular boss is formed at one end of the outer edge wall of the sealing pressing ring, an annular groove used for being embedded into the annular boss is formed in the valve body, and the end face of the annular boss abuts against the sealing valve seat.
3. The U-shaped metal seal butterfly valve of claim 1, wherein: the top of valve body is installed and is used for driving the worm gear of valve rod, install T type sealing ring between the top of worm gear and valve body.
4. A U-shaped metal seal butterfly valve according to claim 3, wherein: a plurality of first sealing ring grooves are formed in the lower inner edge wall of the T-shaped sealing ring, a plurality of second sealing ring grooves are formed in the lower outer edge wall of the T-shaped sealing ring, and the first sealing ring grooves and the second sealing ring grooves are staggered in horizontal height interval arrangement.
5. The U-shaped metal seal butterfly valve of claim 4, wherein: the top of valve body is seted up annular T type seal groove, T type sealing ring installs in T type seal groove.
6. The U-shaped metal seal butterfly valve of claim 1, wherein: the worm gear transmission device comprises a worm gear component and a hand wheel used for driving the worm gear component.
7. The U-shaped metal seal butterfly valve of claim 1, wherein: the bottom of the valve body is provided with a bottom cover, the valve body is arranged above the bottom cover and is provided with a lower shaft sleeve, and the bottom of the valve rod is arranged in the lower shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210788358.XA CN115076387A (en) | 2022-07-06 | 2022-07-06 | U-shaped metal sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210788358.XA CN115076387A (en) | 2022-07-06 | 2022-07-06 | U-shaped metal sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115076387A true CN115076387A (en) | 2022-09-20 |
Family
ID=83258699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210788358.XA Pending CN115076387A (en) | 2022-07-06 | 2022-07-06 | U-shaped metal sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115076387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117967805A (en) * | 2024-04-01 | 2024-05-03 | 南通市力沛流体阀业有限公司 | Wear-resistant sealing butterfly valve |
-
2022
- 2022-07-06 CN CN202210788358.XA patent/CN115076387A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117967805A (en) * | 2024-04-01 | 2024-05-03 | 南通市力沛流体阀业有限公司 | Wear-resistant sealing butterfly valve |
| CN117967805B (en) * | 2024-04-01 | 2024-05-28 | 南通市力沛流体阀业有限公司 | Wear-resistant sealing butterfly valve |
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