CN116906596A - High leakproofness butterfly valve - Google Patents

High leakproofness butterfly valve Download PDF

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Publication number
CN116906596A
CN116906596A CN202310867307.0A CN202310867307A CN116906596A CN 116906596 A CN116906596 A CN 116906596A CN 202310867307 A CN202310867307 A CN 202310867307A CN 116906596 A CN116906596 A CN 116906596A
Authority
CN
China
Prior art keywords
valve
sealing collar
valve plate
butterfly
butterfly valve
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
Application number
CN202310867307.0A
Other languages
Chinese (zh)
Inventor
林立
陈利义
金典
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bohai Valve Group Co ltd
Original Assignee
Bohai Valve Group Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bohai Valve Group Co ltd filed Critical Bohai Valve Group Co ltd
Priority to CN202310867307.0A priority Critical patent/CN116906596A/en
Publication of CN116906596A publication Critical patent/CN116906596A/en
Pending legal-status Critical Current

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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
    • F16K1/16—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
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
    • 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
    • F16K1/228—Movable sealing bodies
    • F16K1/2285—Movable sealing bodies the movement being caused by the flowing medium

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Fluid Mechanics (AREA)
  • Lift Valve (AREA)

Abstract

The application discloses a high-tightness butterfly valve which comprises a butterfly valve seat, a valve plate, a valve cavity sealing collar air tap, a valve plate sealing collar air tap, an annular notch, a valve plate annular clamping groove and an internal connecting hose, wherein the valve cavity sealing collar is sleeved in an inner cavity of the butterfly valve seat, the valve cavity sealing collar is arranged in the valve cavity sealing collar, and the valve plate is positioned in the valve plate sealing collar. The realization is that the butterfly valve subassembly of a set of high leakproofness is provided for the pipe connection, through respectively setting up inflatable expansion type rubber seal structure to disk seat inner chamber and valve plate periphery, make the valve plate lie in the valve body inner chamber lid and close the back, based on the inside inflatable expansion of inflatable expansion type rubber seal structure, can further improve the compactness between valve plate and the valve body, make the leakproofness improve greatly, solve current butterfly valve that singly regards the rubber circle as sealed basis, be difficult to guarantee after the valve plate closure that valve plate and valve body inner chamber do not have the gap, lead to carrying under the condition that medium pressure is high, still can appear a small amount of seepage flow's problem.

Description

High leakproofness butterfly valve
Technical Field
The application relates to the technical field of butterfly valves, in particular to a high-tightness butterfly valve.
Background
The butterfly valve is also called as a flap valve, is a regulating valve with simple structure, is a butterfly valve controlled by opening and closing of pipeline media, and is a valve plate which is a disc and rotates around a valve shaft to achieve opening and closing, and is sealed by a sealing ring.
The existing butterfly valve generally realizes sealing between a valve cavity and a valve plate by using a rubber sealing ring structure, but when a certain high pressure is applied to a medium facing interception, the overflow of the medium is difficult to ensure by using a single rubber sealing ring sealing structure, and a sealing structure capable of expanding and compressing in opposite directions is lacking.
Based on the existing butterfly valve, the following defects exist: the existing butterfly valve which takes a rubber ring as a sealing base is difficult to ensure that no gap exists between a valve plate and an inner cavity of a valve body after the valve plate is closed, so that the problem of small seepage still occurs under the condition of high pressure of a conveying medium. To this end, we propose a high seal butterfly valve.
Disclosure of Invention
The application mainly aims to provide a high-tightness butterfly valve which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
the utility model provides a high leakproofness butterfly valve, includes butterfly disk seat, valve plate, valve pocket seal collar air cock and valve plate seal collar air port, still includes annular notch, valve plate annular clamping groove and interior interconnection hose, the sealed collar of valve pocket is equipped with to butterfly disk seat inner chamber cover, be provided with the sealed collar of valve plate in the sealed collar of valve pocket, the valve plate is located the sealed collar of valve plate, and the middle part has seted up the valve plate annular clamping groove that corresponds with the valve plate in the sealed collar of valve plate, sealed collar of valve pocket and the sealed collar of valve plate are rubber materials preparation, and the sealed collar of valve pocket and the sealed collar of valve plate inside hollow structure.
Further, outer edge rings extend from two ends of the valve cavity sealing collar respectively, and outer edge ring bayonets corresponding to the outer edge rings are respectively arranged at two ends of the inner cavity of the butterfly valve seat.
Further, one side of the valve cavity sealing collar is sequentially provided with a valve cavity sealing collar air tap and a valve plate sealing collar air port, and an inner connecting hose is arranged in the valve plate sealing collar air port.
Further, one end of the inner connecting hose is provided with an a built-in flange interface, one side of the valve plate sealing collar is provided with a b built-in flange interface corresponding to the a built-in flange interface, and the a built-in flange interface is connected with the b built-in flange interface through threaded installation.
Further, an air pump is arranged on the butterfly valve seat, the exhaust end of the air pump is sequentially connected with the air tap of the valve cavity sealing collar and the inner connecting hose through an air pipe, the contact part of the air pipe and the butterfly valve seat is connected with the inner connecting hose through gluing, and the contact part of the inner connecting hose and the valve cavity sealing collar is connected with the inner connecting hose through gluing.
Further, shaft rod holes corresponding to the valve plates are respectively formed in the top and the bottom of the valve cavity sealing clamping ring and the top and the bottom of the valve plate sealing clamping ring, and the rotating rods of the valve plates penetrate through the shaft rod holes and are inserted into the butterfly valve seats.
Further, an annular notch corresponding to the valve plate sealing collar is arranged in the valve cavity sealing collar.
Compared with the prior art, the application has the following beneficial effects: through butterfly disk seat, valve plate, valve pocket sealing collar air cock, valve plate sealing collar air port, annular notch, valve plate annular draw-in groove and the subassembly that the interconnection hose constitutes, realize providing the butterfly valve subassembly of a set of high leakproofness for the pipe connection, through respectively setting up inflatable inflation formula rubber seal structure to disk seat inner chamber and valve plate periphery, make the valve plate lie in the valve body inner chamber lid and close the back, based on inflatable inflation formula rubber seal structure inside inflatable inflation, can further improve the compactness between valve plate and the valve body, make the leakproofness improve greatly, solve the current butterfly valve that singly regards the rubber circle as sealed basis, it does not have the gap to be difficult to guarantee valve plate and valve body inner chamber after the valve plate is closed, still can appear a small amount of seepage flow's problem under the circumstances that leads to carrying medium pressure height.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a high-tightness butterfly valve according to the application.
FIG. 2 is a schematic view of a butterfly valve seat of the present application.
FIG. 3 is a schematic view of a butterfly valve seat of the present application.
FIG. 4 is a schematic diagram of a valve cavity sealing collar structure of a high-tightness butterfly valve.
FIG. 5 is a schematic view of a valve plate sealing collar structure of a high-tightness butterfly valve according to the present application.
FIG. 6 is a schematic partial cross-sectional view of a valve plate sealing collar of a high-tightness butterfly valve of the application.
FIG. 7 is an enlarged schematic view of the high seal butterfly valve of FIG. 6A.
In the figure: 1. a butterfly valve seat; 2. a valve plate; 3. a valve plate; 4. a valve plate sealing collar; 5. an outer rim; 6. an outer rim bayonet; 7. an annular recess; 8. the valve cavity seals the air cock of the collar; 9. the valve plate seals the collar air port; 10. connecting a hose in the inner joint; 11. a, a built-in flange interface; 12. b, a flange interface is arranged in the flange; 13. an air pump; 14. an air pipe; 15. a shaft hole; 16. the valve plate annular clamping groove.
Detailed Description
The application is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the application easy to understand.
As shown in fig. 1-7, a butterfly valve with high tightness comprises a butterfly valve seat 1, a valve plate 3, a valve cavity sealing collar air tap 8, a valve cavity sealing collar air tap 9, an annular notch 7, a valve plate annular clamping groove 16 and an internal connecting hose 10, wherein the valve cavity sealing collar 2 is sleeved in an inner cavity of the butterfly valve seat 1, the valve cavity sealing collar 2 is internally provided with the valve plate sealing collar 4, the valve plate 3 is positioned in the valve plate sealing collar 4, the valve plate annular clamping groove 16 corresponding to the valve plate 3 is formed in the middle part in the valve plate sealing collar 4, the valve cavity sealing collar 2 and the valve plate sealing collar 4 are made of rubber materials, and hollow structures are arranged inside the valve cavity sealing collar 2 and the valve plate sealing collar 4.
The two ends of the valve cavity sealing collar 2 are respectively extended with outer edge rings 5, and two ends of the inner cavity of the butterfly valve seat 1 are respectively provided with outer edge ring bayonets 6 corresponding to the outer edge rings 5.
The valve cavity sealing clamp ring 2 is characterized in that a valve cavity sealing clamp ring air tap 8 and a valve plate sealing clamp ring air port 9 are sequentially arranged on one side of the valve cavity sealing clamp ring 2, and an inner connecting hose 10 is arranged in the valve plate sealing clamp ring air port 9.
One end of the inner connecting hose 10 is provided with an a built-in flange interface 11, one side of the valve plate sealing collar 4 is provided with a b built-in flange interface 12 corresponding to the a built-in flange interface 11, and the a built-in flange interface 11 and the b built-in flange interface 12 are connected through screw threads.
The butterfly valve seat 1 is provided with an air pump 13, the exhaust end of the air pump 13 is sequentially connected with the valve cavity sealing collar air tap 8 and the inner connecting hose 10 through an air pipe 14, the contact part of the air pipe 14 and the butterfly valve seat 1 is in glued connection, and the contact part of the inner connecting hose 10 and the valve cavity sealing collar 2 is in glued connection.
The top and the bottom of the valve cavity sealing collar 2 and the valve plate sealing collar 4 are respectively provided with a shaft rod hole 15 corresponding to the valve plate 3, and a rotating rod of the valve plate 3 penetrates through the shaft rod hole 15 and is inserted into the butterfly valve seat 1.
Wherein, the valve cavity sealing collar 2 is internally provided with an annular notch 7 corresponding to the valve plate sealing collar 4.
Wherein the exhaust end of the air pump 13 is provided with an electromagnetic valve.
During use, after the inner cover of the butterfly valve seat 1 is closed by the valve plate 3, air is supplied to the air pipe 14 through the air pump 13, so that air enters the hollow cavities of the valve cavity sealing collar 2 and the valve plate sealing collar 4 respectively, pressurizing expansion of the valve cavity sealing collar 2 and the valve plate sealing collar 4 is realized, the sealing degree between the valve plate 3 and the butterfly valve seat 1 is better, the sealing performance between the valve plate 3 and the butterfly valve seat 1 is greatly improved, and the medium interception effect between pipelines is ensured.
The foregoing has shown and described the basic principles and main features of the present application and the advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made without departing from the spirit and scope of the application, which is defined in the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a high leakproofness butterfly valve, includes butterfly disk seat (1), valve plate (3), valve pocket sealing collar air cock (8) and valve plate sealing collar gas port (9), its characterized in that still includes annular notch (7), valve plate annular draw-in groove (16) and interior interconnection hose (10), butterfly disk seat (1) inner chamber cover is equipped with valve pocket sealing collar (2), be provided with valve pocket sealing collar (4) in valve pocket sealing collar (2), valve plate (3) are located valve plate sealing collar (4), and valve plate sealing collar (4) in the middle part set up valve plate annular draw-in groove (16) that correspond with valve plate (3), valve pocket sealing collar (2) and valve plate sealing collar (4) are the rubber materials preparation, and valve pocket sealing collar (2) and valve plate sealing collar (4) inside be hollow structure.
2. The high tightness butterfly valve of claim 1, wherein: outer edge rings (5) are respectively extended at two ends of the valve cavity sealing collar (2), and outer edge ring bayonets (6) corresponding to the outer edge rings (5) are respectively arranged at two ends of the inner cavity of the butterfly valve seat (1).
3. The high tightness butterfly valve of claim 1, wherein: one side of the valve cavity sealing collar (2) is sequentially provided with a valve cavity sealing collar air tap (8) and a valve plate sealing collar air port (9), and an inner connecting hose (10) is arranged in the valve plate sealing collar air port (9).
4. The high tightness butterfly valve of claim 1, wherein: one end of the inner connecting hose (10) is provided with an a built-in flange interface (11), one side of the valve plate sealing clamping ring (4) is provided with a b built-in flange interface (12) corresponding to the a built-in flange interface (11), and the a built-in flange interface (11) is connected with the b built-in flange interface (12) through screw threads.
5. The high tightness butterfly valve of claim 1, wherein: an air pump (13) is arranged on the butterfly valve seat (1), the exhaust end of the air pump (13) is sequentially connected with the valve cavity sealing collar air tap (8) and the inner connecting hose (10) through an air pipe (14), the air pipe (14) is connected with the contact part of the butterfly valve seat (1) in a gluing way, and the contact part of the inner connecting hose (10) and the valve cavity sealing collar (2) is connected in a gluing way.
6. The high tightness butterfly valve of claim 1, wherein: the top and the bottom of the valve cavity sealing collar (2) and the valve plate sealing collar (4) are respectively provided with a shaft rod hole (15) corresponding to the valve plate (3), and a rotating rod of the valve plate (3) penetrates through the shaft rod hole (15) and is inserted into the butterfly valve seat (1).
7. The high tightness butterfly valve of claim 1, wherein: an annular notch (7) corresponding to the valve plate sealing collar (4) is arranged in the valve cavity sealing collar (2).
CN202310867307.0A 2023-07-14 2023-07-14 High leakproofness butterfly valve Pending CN116906596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310867307.0A CN116906596A (en) 2023-07-14 2023-07-14 High leakproofness butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310867307.0A CN116906596A (en) 2023-07-14 2023-07-14 High leakproofness butterfly valve

Publications (1)

Publication Number Publication Date
CN116906596A true CN116906596A (en) 2023-10-20

Family

ID=88366204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310867307.0A Pending CN116906596A (en) 2023-07-14 2023-07-14 High leakproofness butterfly valve

Country Status (1)

Country Link
CN (1) CN116906596A (en)

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