CN116717603A - Safe and reliable butterfly valve - Google Patents
Safe and reliable butterfly valve Download PDFInfo
- Publication number
- CN116717603A CN116717603A CN202310683875.5A CN202310683875A CN116717603A CN 116717603 A CN116717603 A CN 116717603A CN 202310683875 A CN202310683875 A CN 202310683875A CN 116717603 A CN116717603 A CN 116717603A
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- Prior art keywords
- hole
- flow
- seat
- valve
- spring
- 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
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- 238000009434 installation Methods 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 48
- 239000012530 fluid Substances 0.000 claims description 30
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
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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
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
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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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
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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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/028—Devices for relieving the pressure on the sealing faces for lift valves with pivoted closure members, e.g. butterfly valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a safe and reliable butterfly valve, which comprises a valve seat, a valve rod and a valve plate, wherein a flow hole is formed in the valve seat, the valve plate is positioned in the flow hole, the flow hole is divided into a first flow end and a second flow end when the valve plate is closed, one end of the valve rod is fixedly connected with the valve plate, the other end of the valve rod extends to the outer side of the valve seat, an installation seat is arranged on the valve seat, a transmission mechanism for driving the valve rod to rotate is arranged in the installation seat, flange plates are arranged at both ends of the valve seat, an installation boss is arranged in the middle of the valve seat, a fixing seat is arranged on the installation boss, and an installation hole parallel to the flow hole is formed in the fixing seat.
Description
Technical Field
The invention discloses a safe and reliable butterfly valve, and belongs to the technical field of valves.
Background
As is well known, butterfly valves, also known as flap valves, are simple in construction and are a type of valve that can be used for on-off control of low pressure pipe media, in which the closure member is a disc that rotates around the valve shaft to achieve opening and closing. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe is mainly used for cutting and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the purpose of opening and closing or adjusting is achieved.
After the valve plate is closed, the flow of fluid is blocked, the pressure of the fluid directly acts on one side of the valve plate, and when the pressure is continuously increased, the valve plate is easy to deform under the condition of insufficient strength, so that the sealing performance and the working safety of the valve are affected.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a safe and reliable butterfly valve.
The invention realizes the purpose through the following technical scheme that the safe and reliable butterfly valve comprises a valve seat, a valve rod and a valve plate, wherein a flow hole is formed in the valve seat, the valve plate is positioned in the flow hole, the flow hole is divided into a first flow end and a second flow end when the valve plate is closed, one end of the valve rod is fixedly connected with the valve plate, the other end of the valve rod extends to the outer side of the valve seat, an installation seat is arranged on the valve seat, a transmission mechanism for driving the valve rod to rotate is arranged in the installation seat, flanges are arranged at both ends of the valve seat, an installation boss is arranged in the middle of the valve seat, a fixing seat is arranged on the installation boss, an installation hole parallel to the flow hole is formed in the fixing seat, one end of the installation hole penetrates through the fixing seat, the other end of the installation hole is in a stepped hole structure, a bidirectional dynamic sealing device is arranged in the installation hole, the installation boss is communicated with the first flow hole and the second flow hole which are respectively communicated with the first flow end and the second flow hole, and a plug for plugging the installation hole is arranged on the fixing seat.
Preferably, the bidirectional dynamic sealing device comprises a first fixing piece, a second fixing piece, a movable sleeve, a sealing ball, a first spring and a second spring, wherein the first fixing piece is in threaded connection with a mounting hole, the movable sleeve is in sliding connection with the mounting hole, one end of the movable sleeve, which is far away from the first fixing piece, is provided with a conical surface matched with the mounting hole, the first fixing piece and the movable sleeve are of a stepped shaft structure, the inner sides of the first fixing piece and the movable sleeve are respectively provided with a first communication hole and a second communication hole, two ends of the first spring are respectively abutted to the first fixing piece and the movable sleeve, the second fixing piece is in threaded connection with the second communication hole, the second spring and the sealing ball are located in the second communication hole, the second spring is used for applying acting force for sealing the sealing ball to block one end of the second communication hole, which is far away from the second fixing piece, a first knob groove is arranged on the first fixing piece, and a second knob groove which is communicated with the second communication hole is arranged on the second fixing piece.
Preferably, the second communication hole is provided with a positioning sleeve, one side of the positioning sleeve is matched with the sealing ball, and two ends of the second spring are respectively abutted against the second fixing piece and the positioning sleeve.
Preferably, the movable sleeve and the positioning sleeve are respectively provided with a diversion trench for increasing the flow of the fluid.
Preferably, the both sides of fixing base all are provided with the regulating part that is used for adjusting first spring and second spring compression, the regulating part includes movable rod, third spring, stop collar and adjusting bolt, the one end of movable rod is hexagonal structure, and the other end passes behind fixing base or the end cap and stop collar fixed connection, the third spring is located the outside of fixing base to apply the effort that breaks away from the fixing base to the movable rod, one side that the stop collar is close to first mounting or movable sleeve has with first knob groove or second knob groove complex bellying, adjusting bolt threaded connection is on the ring flange, and one end is contradicted with the movable rod.
Preferably, one end of the movable rod is embedded into the limit sleeve, and the movable rod and the limit sleeve are fixed through a bolt.
Preferably, a gasket is arranged on the other side of the fixed seat corresponding to the plug, sealing gaskets are arranged between the gasket and the plug and the fixed seat, and a waist-shaped sealing ring is arranged between the fixed seat and the installation boss.
Preferably, the transmission mechanism comprises a worm wheel, a worm and a hand wheel, the worm wheel is fixed on the valve rod, the worm and the worm wheel are in transmission, the hand wheel is fixed at one end of the worm, the valve plate comprises a mounting plate and a sealing plate, the sealing plate is matched with the circulation hole, and the sealing plate is fixed with the mounting plate through bolts.
Compared with the prior art, the invention has the beneficial effects that:
through setting up installation boss, fixing base and two-way dynamic seal device, when the valve plate closes the valve, one side fluid of valve plate can't flow, in case the pressure of fluid increases and exceeds the setting value, fluid promotes sealing ball or movable sleeve through first water conservancy diversion hole or second water conservancy diversion hole to get into one side of valve plate smoothly, so can realize the pressure release, in order to guarantee that the fluid pressure in the disk seat is in normal within range, the effectual security of guaranteeing the valve work.
Drawings
FIG. 1 is a schematic diagram of a safe and reliable butterfly valve;
FIG. 2 is a schematic diagram of the internal structure of a safe and reliable butterfly valve according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an exploded view of the bi-directional dynamic seal assembly of the present invention;
FIG. 5 is an exploded view of the adjustment member of the present invention;
FIG. 6 is a schematic view of a valve plate according to the present invention;
reference numerals: 1. a mounting base; 2. a hand wheel; 3. a valve seat; 4. a mounting boss; 5. an adjusting member; 6. a fixing seat; 7. a plug; 8. a flange plate; 9. a flow hole; 10. a valve plate; 11. a first flow end; 12. a sealing plate; 13. waist-shaped sealing rings; 14. a mounting hole; 15. a plug pin; 16. an adjusting bolt; 17. a second flow end; 18. a first fixing member; 19. a first knob groove; 20. a sealing gasket; 21. a first communication hole; 22. a sealing ball; 23. a positioning sleeve; 24. a movable sleeve; 25. a second fixing member; 26. a limit sleeve; 27. a movable rod; 28. a second knob groove; 29. a second spring; 30. a second deflector aperture; 31. a first spring; 32. a mounting plate; 33. a second communication hole; 34. a first deflector aperture; 35. a conical surface; 36. a diversion trench; 37. a third spring; 38. a boss.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-6, a safe and reliable butterfly valve comprises a valve seat 3, a valve rod and a valve plate 10, wherein a flow hole 9 is formed in the valve seat 3, the valve plate 10 is positioned in the flow hole 9, the flow hole 9 is divided into a first flow hole 11 and a second flow hole 17 when the valve plate 10 is closed, one end of the valve rod is fixedly connected with the valve plate 10, the other end of the valve rod extends to the outer side of the valve seat 3, an installation seat 1 is arranged on the valve seat 3, a transmission mechanism for driving the valve rod to rotate is arranged in the installation seat 1, flanges 8 are arranged at two ends of the valve seat 3, an installation boss 4 is arranged in the middle of the valve seat 3, a fixing seat 6 is arranged on the installation boss 4, a mounting hole 14 parallel to the flow hole 9 is formed in the fixing seat 6, one end of the mounting hole 14 penetrates through the fixing seat 6, the other end of the mounting hole 14 is in a stepped hole structure, a bidirectional dynamic sealing device is arranged in the mounting hole 14, a first flow hole 34 and a second flow hole 30 which are communicated with two ends of the mounting hole 14 are respectively arranged on the mounting boss 4 and the fixing seat 6, the first flow hole 34 and the second flow hole 30 are communicated with the first flow hole 11 and the second flow hole 17, and a plug 7 for plugging the fixing seat 14 is arranged on the fixing seat 6.
The bidirectional dynamic sealing device comprises a first fixing piece 18, a second fixing piece 25, a movable sleeve 24, a sealing ball 22, a first spring 31 and a second spring 29, wherein the first fixing piece 18 is in threaded connection with a mounting hole 14, the movable sleeve 24 is in sliding connection with the mounting hole 14, one end of the movable sleeve 24 far away from the first fixing piece 18 is provided with a conical surface 35 matched with the mounting hole 14, the first fixing piece 18 and the movable sleeve 24 are of a stepped shaft structure, the inner sides of the first fixing piece 18 and the movable sleeve 24 are respectively provided with a first communication hole 21 and a second communication hole 33, two ends of the first spring 31 are respectively abutted against the first fixing piece 18 and the movable sleeve 24, the second fixing piece 25 is in threaded connection with the second communication hole 33, the second spring 29 and the sealing ball 22 are positioned in the second communication hole 33, the second spring 29 applies acting force for sealing the sealing ball 22 to block one end of the second communication hole 33 far away from the second fixing piece 25, the first fixing member 18 is provided with a first knob groove 19, the second fixing member 25 is provided with a second knob groove 28 communicated with a second communication hole 33, after the valve plate 10 is closed, fluid is blocked at the first communication end 11 or the second communication end 17, so that the fluid pressure on one side of the valve plate 10 is increased, when the fluid pressure exceeds a set value, the fluid can push the sealing ball 22 to compress the second spring 29, so that the fluid can smoothly enter the second guide hole 30 from the first guide hole 34 through the first communication hole 21, the mounting hole 14 and the second communication hole 33, thereby realizing pressure relief, or the fluid can push the movable sleeve 24 from the second guide hole 30, thereby entering the mounting hole 14 and the first communication hole 21, finally, the fluid can flow out of the first guide hole 34 to realize pressure relief, so that the fluid pressure born by the valve plate 10 can be reduced, thereby keeping the fluid pressure within a safe pressure range, avoid the pressure too big and lead to valve plate 10 to warp, make valve plate 10's leakproofness and security can be ensured, second intercommunicating pore 33 is provided with spacer sleeve 23, one side of spacer sleeve 23 cooperates with sealing ball 22, the both ends of second spring 29 are contradicted with second mounting 25 and spacer sleeve 23 respectively, through setting up spacer sleeve 23, make second spring 29 direct contact with spacer sleeve 23, with guarantee its normal compression and resilience, all be provided with the guiding gutter 36 that is used for increasing fluid flow on movable sleeve 24 and the spacer sleeve 23, when fluid passes through mounting hole 14 or second intercommunicating pore 33, utilize guiding gutter 36 can increase the flow of fluid, thereby increase the effect of pressure release.
The two sides of the fixed seat 6 are both provided with an adjusting piece 5 for adjusting the compression amount of the first spring 31 and the second spring 29, the adjusting piece 5 comprises a movable rod 27, a third spring 37, a limiting sleeve 26 and an adjusting bolt 16, one end of the movable rod 27 is in a hexagonal structure, the other end of the movable rod passes through the fixed seat 6 or the plug 7 and is fixedly connected with the limiting sleeve 26, the third spring 37 is positioned on the outer side of the fixed seat 6 and applies an acting force for the movable rod 27, which is separated from the fixed seat 6, one side of the limiting sleeve 26, which is close to the first fixed piece 18 or the movable sleeve 24, is provided with a protruding part 38 matched with the first knob groove 19 or the second knob groove 28, the adjusting bolt 16 is in threaded connection with the flange 8, one end of the adjusting bolt 16 is in contact with the movable rod 27, the protruding length of one end of the movable rod 27 is increased continuously, so that the protruding part 38 on the limit sleeve 26 can be smoothly inserted into the first knob groove 19 or the second knob groove 28, and then the movable rod 27 is rotated again, so that the first fixing piece 18 or the second fixing piece 25 rotates synchronously, and the fixing seat 6 is connected with the mounting boss 4 through a bolt, and the outer side of the movable sleeve 24 is provided with a limit protruding column which is slidably arranged with the inner wall of the mounting hole 14, so that the position of the first fixing piece 18 or the second fixing piece 25 in the mounting hole 14 and the second communication hole 33 can be changed, and the compression length of the first spring 31 and the second spring 29 can be changed, so that the pressure when the pressure of the valve seat 3 is released is adjusted.
One end of the movable rod 27 is embedded into the limiting sleeve 26, the movable rod 27 and the limiting sleeve 26 are fixed through the bolt 15, the movable rod 27 and the limiting sleeve 26 are connected through the bolt 15, fluid can be guaranteed not to leak, meanwhile, the movable rod is simple to install and detach, the other side of the fixed seat 6 corresponding to the plug 7 is provided with a gasket, the plug 7 and the fixed seat 6 are provided with a sealing gasket 20, a waist-shaped sealing ring 13 is arranged between the fixed seat 6 and the installation boss 4, the sealing gasket 20 and the waist-shaped sealing ring 13 deform through being pressed, so that the tightness of the fixed seat 6 is guaranteed, a transmission mechanism comprises a worm wheel, a worm and a hand wheel 2, the worm wheel is fixed on a valve rod, the worm is in transmission with the worm wheel, the hand wheel 2 is fixed at one end of the worm, the hand wheel 2 is rotated, the worm is used for driving the worm wheel to drive the worm wheel, the valve rod can drive the valve plate 10 to rotate, so that the butterfly valve plate is controlled to open or close, the valve plate 10 comprises a mounting plate 32 and a sealing plate 12, the sealing plate 12 is matched with the flow hole 9, the sealing plate 12 is fixed with the mounting plate 32 through bolts, the sealing plate 12 is matched with the valve seat 3, and replacement can be carried out at any time after the sealing plate 12 is worn, so that maintenance cost is reduced.
Working principle: when the valve plate 10 is closed, the fluid is blocked at the first flow-through end 11, when the fluid pressure is small, the bidirectional dynamic sealing device is in a blocking state, the fluid cannot flow from the first flow-through hole 34 to the second flow-through hole 30, the butterfly valve is in a completely blocking state, once the fluid pressure is continuously increased and exceeds a set value, the fluid can push the sealing ball 22 and the positioning sleeve 23 to compress the second spring 29, so that the first flow-through hole 21 and the second flow-through hole 33 keep a conducting state, and thus the fluid can smoothly enter the second flow-through hole 30 from the first flow-through hole 34, the pressure on one side of the valve plate 10 is reduced, and the pressure is kept in a relatively safe range, and when the fluid is blocked at the second flow-through end 17, and the fluid pressure exceeds the set value, the mounting hole 14 and the first flow-through hole 21 can be kept conducting by pushing the movable sleeve 24, so that the pressure can be relieved, the dynamic balance of the bidirectional pressure can be achieved, the whole structure is compact, the practicability is strong, and the pressure value of the pressure relief can be adjusted as required, and the operation is simple.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The utility model provides a safe and reliable butterfly valve, includes disk seat (3), valve rod and valve plate (10), a serial communication port, be provided with in disk seat (3) flow hole (9), valve plate (10) are located flow hole (9) to separate flow hole (9) into first flow end (11) and second flow end (17) when valve plate (10) are closed, one end and valve plate (10) fixed connection of valve rod, the other end extends to the outside of disk seat (3), be provided with mount pad (1) on disk seat (3), be provided with the drive mechanism that drives valve rod pivoted in mount pad (1), the both ends of disk seat (3) all are provided with ring flange (8), and the middle part of disk seat (3) has installation boss (4), be provided with fixing base (6) on installation boss (4), have in fixing base (6) with flow hole (14) parallel with flow hole (9), one end of installation hole (14) runs through fixing base (6), the other end is the pore structure, be provided with ladder in installation hole (14) and dynamic seal device (4) is provided with two-way flow hole (34) and second flow hole (30) on the installation boss (14), the first diversion hole (34) and the second diversion hole (30) are respectively communicated with the first circulation end (11) and the second circulation end (17), and the plug (7) for plugging the mounting hole (14) is arranged on the fixing seat (6).
2. The safe and reliable butterfly valve according to claim 1, wherein the bidirectional dynamic sealing device comprises a first fixing piece (18), a second fixing piece (25), a movable sleeve (24), a sealing ball (22), a first spring (31) and a second spring (29), wherein the first fixing piece (18) is in threaded connection with a mounting hole (14), the movable sleeve (24) is in sliding connection with the mounting hole (14), one end of the movable sleeve (24) far away from the first fixing piece (18) is provided with a conical surface (35) matched with the mounting hole (14), the first fixing piece (18) and the movable sleeve (24) are of a stepped shaft structure, the inner sides of the first fixing piece (18) and the movable sleeve (24) are respectively provided with a first communication hole (21) and a second communication hole (33), two ends of the first spring (31) are respectively abutted against the first fixing piece (18) and the movable sleeve (24), the second fixing piece (25) is in threaded connection with the second communication hole (33), the second spring (29) and the sealing ball (22) are located in the second fixing piece (22), the second communication hole (33) is far away from the first sealing piece (19) and the first sealing piece (25) is provided with a rotary knob, the second fixing piece (25) is provided with a second knob groove (28) communicated with a second communication hole (33).
3. A butterfly valve according to claim 2, characterized in that the second communication hole (33) is provided with a positioning sleeve (23), one side of the positioning sleeve (23) cooperates with the sealing ball (22), and two ends of the second spring (29) respectively collide with the second fixing member (25) and the positioning sleeve (23).
4. A butterfly valve according to claim 3, characterized in that both the movable sleeve (24) and the positioning sleeve (23) are provided with a flow guide groove (36) for increasing the flow of fluid.
5. The safe and reliable butterfly valve according to claim 2, wherein the two sides of the fixed seat (6) are respectively provided with an adjusting piece (5) for adjusting the compression amount of the first spring (31) and the second spring (29), the adjusting piece (5) comprises a movable rod (27), a third spring (37), a limiting sleeve (26) and an adjusting bolt (16), one end of the movable rod (27) is in a hexagonal structure, the other end of the movable rod passes through the fixed seat (6) or the plug (7) and then is fixedly connected with the limiting sleeve (26), the third spring (37) is located on the outer side of the fixed seat (6) and applies a force for the movable rod (27) to be separated from the fixed seat (6), one side, close to the first fixed piece (18) or the movable sleeve (24), of the limiting sleeve (26) is provided with a protruding portion (38) matched with the first knob groove (19) or the second knob groove (28), the adjusting bolt (16) is in threaded connection on the flange plate (8), and one end of the adjusting bolt (16) is in contact with the movable rod (27).
6. The butterfly valve according to claim 5, characterized in that one end of the movable rod (27) is embedded in the stop collar (26) and both are fixed by means of the bolt (15).
7. The safe and reliable butterfly valve according to claim 5, wherein a gasket is arranged on the other side of the fixed seat (6) corresponding to the plug (7), sealing gaskets (20) are arranged between the gasket and the plug (7) and the fixed seat (6), and a kidney-shaped sealing ring (13) is arranged between the fixed seat (6) and the mounting boss (4).
8. A butterfly valve according to claim 1, characterized in that the transmission mechanism comprises a worm wheel, a worm and a hand wheel (2), the worm wheel is fixed on the valve rod, the worm and the worm wheel are driven, the hand wheel (2) is fixed at one end of the worm, the valve plate (10) comprises a mounting plate (32) and a sealing plate (12), the sealing plate (12) is matched with the flow hole (9), and the sealing plate (12) is fixed with the mounting plate (32) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310683875.5A CN116717603A (en) | 2023-06-10 | 2023-06-10 | Safe and reliable butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310683875.5A CN116717603A (en) | 2023-06-10 | 2023-06-10 | Safe and reliable butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116717603A true CN116717603A (en) | 2023-09-08 |
Family
ID=87871010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310683875.5A Pending CN116717603A (en) | 2023-06-10 | 2023-06-10 | Safe and reliable butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116717603A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090947A (en) * | 2023-10-09 | 2023-11-21 | 江苏通达船用阀泵有限公司 | Driving device convenient to maintain for butterfly valve |
-
2023
- 2023-06-10 CN CN202310683875.5A patent/CN116717603A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090947A (en) * | 2023-10-09 | 2023-11-21 | 江苏通达船用阀泵有限公司 | Driving device convenient to maintain for butterfly valve |
| CN117090947B (en) * | 2023-10-09 | 2024-05-31 | 山东美华消防科技有限公司 | Driving device convenient to maintain for butterfly valve |
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