CN111288181A - Bidirectional pressure hard seal butterfly valve - Google Patents

Bidirectional pressure hard seal butterfly valve Download PDF

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Publication number
CN111288181A
CN111288181A CN202010288961.2A CN202010288961A CN111288181A CN 111288181 A CN111288181 A CN 111288181A CN 202010288961 A CN202010288961 A CN 202010288961A CN 111288181 A CN111288181 A CN 111288181A
Authority
CN
China
Prior art keywords
valve plate
valve
valve body
filter screen
plate
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
CN202010288961.2A
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Chinese (zh)
Inventor
郑博
程文斌
程祖梁
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.)
Jiute Valve Co Ltd
Original Assignee
Jiute Valve 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 Jiute Valve Co Ltd filed Critical Jiute Valve Co Ltd
Priority to CN202010288961.2A priority Critical patent/CN111288181A/en
Publication of CN111288181A publication Critical patent/CN111288181A/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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
    • F16K11/0525—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves the closure members being pivoted around an essentially central axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
    • 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
    • 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
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a bidirectional hard-pressing sealing butterfly valve which comprises a valve body, wherein a spherical cavity is formed in the valve body, a valve rod, a first valve plate and a second valve plate are arranged in the valve body, an extending end of the bottom of the valve rod penetrates through the first valve plate, the second valve plate is welded on one side of the first valve plate and is perpendicular to the first valve plate, a fluid channel is communicated with one side of the valve body, and a plurality of fluid channels are communicated with the other side of the valve body. According to the invention, by changing the positions of the first valve plate and the second valve plate, when the second valve plate is vertical to the upper fluid channel or the lower fluid channel, fluid can only circulate through the upper fluid channel or the lower fluid channel, so that the change of the fluid flow direction is realized.

Description

Bidirectional pressure hard seal butterfly valve
Technical Field
The invention relates to the technical field of butterfly valves, in particular to a bidirectional pressure hard seal butterfly valve.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing member (a valve plate or a butterfly plate) which is a disc and rotates around a valve shaft to achieve opening and closing.
However, firstly, the existing butterfly valve is generally a single-channel valve, and has a single function, and can only control the flow rate and on-off of liquid, and can not change the flow direction, and two single-channel valves are often needed when the flow direction of the liquid needs to be changed, which is inconvenient and high in cost, and secondly, the butterfly valve is a valve frequently used on a fluid medium conveying pipeline, and under the environment with severe environment, a large amount of impurities are often mixed in the fluid medium, and after the surface of the valve plate is impacted by the impurities for a long time, the surface of the valve plate is damaged, and the valve sealing can be failed seriously, and the service life of the valve is shortened.
Disclosure of Invention
The invention aims to solve the problems and provides a bidirectional hard seal butterfly valve.
In order to achieve the purpose, the invention adopts the following technical scheme:
two-way pressure butterfly valve sealed firmly, including the inside valve body of seting up spherical chamber, the inside of valve body is provided with valve rod, first valve plate and second valve plate, the first valve plate is run through to the end that extends of valve rod bottom, the welding of first valve plate one side has the second valve plate, and the first valve plate of second valve plate perpendicular to, valve body one side intercommunication has fluid passage, valve body opposite side intercommunication has a plurality of fluid passage.
As a further description of the above technical solution:
the welding of valve body top has the sleeve, the welding has the carousel after the top of valve body is run through to the extension end at valve rod top, and the carousel is located the sleeve, it has a plurality of locking pieces to wind angle welding such as its axle center on the carousel exterior wall, it has seted up a plurality of locking grooves, and is a plurality of to wind angles such as its axle center on the sleeve interior wall a locking groove outside has the locking bolt through threaded connection.
As a further description of the above technical solution:
first valve plate and second valve plate outside are provided with first filter screen and second filter screen, first filter screen and second filter screen are spherical filter screen, and are less than the inside spherical cavity of valve body.
As a further description of the above technical solution:
the first filter screen is located on the outer side of the second filter screen, and the aperture of the meshes of the first filter screen is larger than that of the meshes of the second filter screen.
As a further description of the above technical solution:
the outer sides of the first valve plate and the second valve plate are both provided with wave-shaped profiles.
As a further description of the above technical solution:
and sealing rings are arranged on the outer sides of the first valve plate and the second valve plate and are in contact with the inner surface wall of the valve body.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, by changing the positions of the first valve plate and the second valve plate, when the second valve plate is vertical to the upper fluid channel or the lower fluid channel, fluid can only circulate through the upper fluid channel or the lower fluid channel, so that the change of the fluid flow direction is realized.
2. According to the invention, the first filter screen and the second filter screen arranged outside the first valve and the second valve are used for filtering impurities mixed in the fluid medium, so that the abrasion of the surfaces of the first valve plate and the second valve plate caused by the contact of the impurities and the surfaces of the first valve plate and the second valve plate is avoided, the first valve plate and the second valve plate are protected, and the service life of the whole valve is prolonged.
3. When fluid flows through the fluid channel, the impact force of fluid medium on the surfaces of the first valve plate and the second valve plate can be relieved through the wavy surface, the impact erosion degree of the first valve plate and the second valve plate is reduced, the service lives of the first valve plate and the second valve plate are prolonged, and the service time of the whole valve is prolonged.
Drawings
FIG. 1 is a schematic vertical cross-sectional view of a butterfly valve of the present invention;
FIG. 2 is a schematic top view of the butterfly valve of the present invention;
FIG. 3 is a schematic horizontal cross-sectional view of a butterfly valve of the present invention;
fig. 4 is a schematic perspective view of the connection between the first valve plate and the second valve plate according to the present invention.
Illustration of the drawings:
1. a valve body; 2. a valve stem; 3. a first valve plate; 301. a wave-shaped surface; 4. a second valve plate; 5. a turntable; 501. a locking block; 6. a sleeve; 601. a locking groove; 7. locking the bolt; 8. a first filter screen; 9. a second filter screen; 10. a seal ring; 11. a fluid channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 and 3, a bidirectional hard-pressing sealing butterfly valve includes a valve body 1 having a spherical cavity therein, a valve rod 2, a first valve plate 3 and a second valve plate 4 are disposed in the valve body 1, an extending end of the bottom of the valve rod 2 penetrates through the first valve plate 3, the second valve plate 4 is welded to one side of the first valve plate 3, the second valve plate 4 is perpendicular to the first valve plate 3, one side of the valve body 1 is communicated with a fluid passage 11, the other side of the valve body 1 is communicated with a plurality of fluid passages 11, fluid media can flow through the fluid passages 11 at both sides, and when the first valve plate 3 is perpendicular to the fluid passage 11, the valve is closed, and the fluid media cannot flow; when the second valve plate 4 is located at the upper side and perpendicular to the fluid channel 11, the fluid medium can be circulated through the lower fluid channel 11; when second valve plate 4 was located the below and was perpendicular with fluid passage 11, fluid medium can be through the fluid passage 11 circulation of top this moment, through the position that changes first valve plate 3 and second valve plate 4, can change the fluid flow direction, has avoided using two single channel valves to realize the change of fluid flow direction, simple structure, convenient operation, use cost is low.
Referring to fig. 1 and 2, a sleeve 6 is welded on the top of a valve body 1, a rotary disc 5 is welded on an extending end of the top of a valve rod 2 after penetrating through the top of the valve body 1, the rotary disc 5 is located in the sleeve 6, the valve rod 2 can be driven to rotate by rotating the rotary disc 5, so as to drive a first valve plate 3 and a second valve plate 4 to rotate, thereby changing the positions of the first valve plate 3 and the second valve plate 4, thereby changing the flow direction of fluid, a plurality of locking blocks 501 are welded on the outer surface wall of the rotary disc 5 at equal angles around the axis, a plurality of locking grooves 601 are formed on the inner surface wall of the sleeve 6 at equal angles around the axis, the outer sides of the plurality of locking grooves 601 are connected with locking bolts 7 through threads, when the first valve plate 3 and the second valve plate 4 rotate to proper positions, namely the flow direction changes, the locking blocks 501 are clamped in the locking grooves 601, by screwing the locking bolts 7, realize the locking in carousel 5 position, and then the rotation of restriction valve rod 2 to the rotation of first valve plate 3 and second valve plate 4 of control, wherein, the position that the first valve plate 3 of position cooperation that locking piece 501 and locking groove 601 distribute and second valve plate 4 stop when controlling the fluid flow direction, realize the locking of first valve plate 3 and second valve plate 4, when guaranteeing that fluid flows, first valve plate 3 and second valve plate 4 can not swing at will.
Different from the first embodiment
Example two:
referring to fig. 1 and 3, a first filter screen 8 and a second filter screen 9 are arranged outside a first valve plate 3 and a second valve plate 4, when the first valve plate 3 and the second valve plate 4 are replaced, the first filter screen 8 and the second filter screen 9 are also taken out, the first filter screen 8 and the second filter screen 9 are spherical filter screens and are smaller than a spherical cavity inside the valve body 1, so that impurities mixed in a fluid medium can be filtered, the first filter screen 8 is positioned outside the second filter screen 9, the aperture of meshes of the first filter screen 8 is larger than that of meshes of the second filter screen 9, larger impurities mixed in the fluid medium are filtered through the first filter screen 8, smaller impurities mixed in the fluid medium are filtered through the second filter screen 9, and the smaller impurities are accumulated between the first filter screen 8 and the second filter screen 9, so that the surfaces of the first valve plate 3 and the second valve plate 4 are prevented from being worn due to the contact of the impurities with the surfaces of the first valve plate 3 and the second valve plate 4, protect first valve plate 3 and second valve plate 4, improve the whole live time of valve.
The difference from the second embodiment is
Example three:
referring to fig. 3 and 4, the wave-shaped surfaces 301 are disposed on the outer sides of the first valve plate 3 and the second valve plate 4, and the impact force of the fluid medium on the surfaces of the first valve plate 3 and the second valve plate 4 can be reduced by the wave-shaped surfaces 301, so that the fluid medium is prevented from directly impacting the surfaces of the first valve plate 3 and the second valve plate 4, the degree of impact erosion of the first valve plate 3 and the second valve plate 4 is reduced, the service lives of the first valve plate 3 and the second valve plate 4 are prolonged, and the service life of the whole valve is prolonged.
Different from the first embodiment
Example four:
referring to fig. 1 and 3, the outer sides of the first valve plate 3 and the second valve plate 4 are provided with the sealing rings 10, and the sealing rings 10 are in contact with the inner surface wall of the valve body 1, so that the sealing performance between the outer sides of the first valve plate 3 and the second valve plate 4 and the inner surface wall of the valve body 1 is improved, the fluid medium is prevented from overflowing from the gaps between the outer sides of the first valve plate 3 and the second valve plate 4, the fluid medium is prevented from leaking, and the sealing performance of the whole valve is improved.
The working principle is as follows: when the valve is used, in the first step, when fluid is required to circulate through the upper fluid passage 11, the rotating disc 5 is rotated clockwise to rotate 90 degrees, the locking block 501 is clamped in the locking groove 601, the locking bolt 7 is screwed until the locking bolt is in threaded connection with the locking block 501, the rotation of the rotating disc 5 is limited, and further the rotation of the valve rod 2 is limited, so that the locking of the positions of the first valve plate 3 and the second valve plate 4 is realized, at the moment, the second valve plate 4 is perpendicular to the lower fluid passage 11, namely the lower fluid passage 11 is not communicated, and the fluid can only circulate through the upper fluid passage 11; secondly, when fluid needs to flow through the lower fluid passage 11, in the state of the first step, the locking bolt 7 is unscrewed until the locking bolt is separated from the locking block 501, the rotary disc 5 is rotated anticlockwise for 180 degrees, the locking action of the rotary disc 5 is repeated, the rotary disc 5 is locked, at the moment, the second valve plate 4 is perpendicular to the upper fluid passage 11, namely, the upper fluid passage 11 is not communicated, the fluid can only flow through the lower fluid passage 11, and the flow direction of the fluid can be changed by changing the positions of the first valve plate 3 and the second valve plate 4, so that the change of the flow direction of the fluid by using two single-channel valves is avoided, and the structure is simple, the operation is convenient, and the use cost is low; when the valve needs to be closed, firstly, the action of unlocking the limitation of the rotary disc 5 in the second step is repeated, then, the rotary disc 5 is clockwise rotated for 90 degrees in the action state of the second step, and finally, the action of locking the rotary disc 5 in the first step is repeated to realize the relocking of the rotary disc 5, at the moment, the first valve plate 3 is vertical to the fluid channel 11, the fluid channels 11 on the two sides are not communicated, and the flow resistance of the fluid is realized; when fluid circulates in the fluid passages 11 on the two sides, the first filter screen 8 and the second filter screen 9 can filter impurities mixed in the fluid medium, the surface of the first valve plate 3 and the surface of the second valve plate 4 are prevented from being corroded by the impurities, the first valve plate 3 and the second valve plate 4 are protected, the filtered fluid is in contact with the wavy surface 301 on the surface of the first valve plate 3 and the surface of the second valve plate 4, the impact force of the fluid medium on the surface of the first valve plate 3 and the surface of the second valve plate 4 can be reduced through the wavy surface 301, the surface of the first valve plate 3 and the surface of the second valve plate 4 are prevented from being directly impacted by the fluid medium, the impact corrosion degree of the first valve plate 3 and the second valve plate 4 is reduced, the service life of the first valve plate 3 and the service life of the second valve plate 4 are prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (6)

1. Two-way pressure butterfly valve sealed firmly, including inside valve body (1) of seting up spherical chamber, its characterized in that, the inside of valve body (1) is provided with valve rod (2), first valve plate (3) and second valve plate (4), first valve plate (3) are run through to the extension end of valve rod (2) bottom, first valve plate (3) one side welding has second valve plate (4), and first valve plate (3) of second valve plate (4) perpendicular to, valve body (1) one side intercommunication has fluid passage (11), valve body (1) opposite side intercommunication has a plurality of fluid passage (11).
2. The bidirectional pressure hard seal butterfly valve according to claim 1, wherein a sleeve (6) is welded at the top of the valve body (1), a rotary disc (5) is welded after an extending end at the top of the valve rod (2) penetrates through the top of the valve body (1), the rotary disc (5) is located in the sleeve (6), a plurality of locking blocks (501) are welded on the outer surface wall of the rotary disc (5) at equal angles around the axis of the rotary disc, a plurality of locking grooves (601) are formed in the inner surface wall of the sleeve (6) at equal angles around the axis of the sleeve, and locking bolts (7) are connected to the outer side of the locking grooves (601) through threads.
3. A two-way press hard seal butterfly valve according to claim 1, characterized in that the first valve plate (3) and the second valve plate (4) are provided with a first filter screen (8) and a second filter screen (9) on the outside, and the first filter screen (8) and the second filter screen (9) are spherical filter screens and smaller than the spherical cavity inside the valve body (1).
4. A bi-directional pressure-tight butterfly valve according to claim 3, characterised in that said first sieve (8) is located outside said second sieve (9), the mesh aperture of said first sieve (8) being larger than the mesh aperture of said second sieve (9).
5. A two-way pressure hard seal butterfly valve according to claim 1, characterized in that the first valve plate (3) and the second valve plate (4) are provided with a wave-shaped surface (301) on the outside.
6. A two-way press hard seal butterfly valve according to claim 1, characterized in that the outer sides of the first valve plate (3) and the second valve plate (4) are provided with sealing rings (10), the sealing rings (10) being in contact with the inner surface wall of the valve body (1).
CN202010288961.2A 2020-04-14 2020-04-14 Bidirectional pressure hard seal butterfly valve Pending CN111288181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010288961.2A CN111288181A (en) 2020-04-14 2020-04-14 Bidirectional pressure hard seal butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010288961.2A CN111288181A (en) 2020-04-14 2020-04-14 Bidirectional pressure hard seal butterfly valve

Publications (1)

Publication Number Publication Date
CN111288181A true CN111288181A (en) 2020-06-16

Family

ID=71019665

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010288961.2A Pending CN111288181A (en) 2020-04-14 2020-04-14 Bidirectional pressure hard seal butterfly valve

Country Status (1)

Country Link
CN (1) CN111288181A (en)

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