CN115962290B - Pneumatic full-lining butterfly valve with high safety and use method thereof - Google Patents
Pneumatic full-lining butterfly valve with high safety and use method thereof Download PDFInfo
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- 239000010410 layer Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a pneumatic full-lining butterfly valve with high safety and a use method thereof, comprising a valve body, a pneumatic assembly and a block body, wherein a pressure sensor is embedded and installed on the inner bottom wall of the groove body, an adjusting block is installed at the pressure sensing end of the pressure sensor, a spring is installed at the top of the adjusting block, a sealing plate is installed at the top of the spring, and a first motor is installed on the inner wall of the adjusting block. According to the invention, the pressure sensor and the sealing plate are arranged, when the valve body is locked, liquid on the liquid isolation side of the valve body flows into the groove body through the fine holes, the hydraulic pressure of the valve body is gradually increased, the sealing plate is applied with upward force by the hydraulic pressure, so that the sealing plate transmits the force to the pressure sensor through the pull rope and the regulating block, the pressure sensor transmits the force to the control module, and the data is displayed on the display screen of the control panel, so that the monitoring by a detector is facilitated, the loss is caused by the abnormal hydraulic pressure in the surface, and the safety is improved.
Description
Technical Field
The invention relates to the technical field of butterfly valves, in particular to a pneumatic full-lining butterfly valve with high safety and a use method thereof.
Background
The butterfly valve is also called as flap valve, and is a simple-structure regulating valve, and can be used for opening and closing low-pressure pipeline medium, and the butterfly valve is characterized by that its closing member (valve clack or butterfly plate) is made into the form of disk, and can be rotated around valve shaft to implement opening and closing operation, and the valve can be used for controlling the flow of various fluids of air, water, steam, various corrosive mediums, slurry, oil, liquid metal and radioactive medium, etc., on the pipeline, mainly can implement cutting-off and throttling action, and its opening and closing member is made into the form of disk, and can be rotated around its own axis in the valve body so as to attain the goal of opening and closing or regulating.
The existing butterfly valve has the following defects:
1. patent document CN104806771a discloses a pneumatic expansion butterfly valve, "comprising a valve body, a valve plate, a valve rod and an actuator arranged above the butterfly body, wherein the valve plate for blocking the fluid channel is arranged in the fluid channel of the valve body, the valve plate is in transmission connection with the actuator through the valve rod, an elastic valve seat which is tightly contacted with or separated from the valve plate when the valve plate blocks the fluid channel is also arranged in the fluid channel, a cavity is arranged between the elastic valve seat and the valve body, the cavity is connected with the outlet end of a modular process control valve arranged outside the valve body through a pipeline, the inlet end of the modular process control valve is connected with the control valve through a pipeline, the actuator is also connected with the control valve through a pipeline, and the control valve is connected with an external pressure air source. The butterfly valve has the advantages that the design is novel, the structure is unique, the starting torque of the butterfly valve is extremely small, the action is very sensitive, the opening and closing contact abrasion of the valve seat and the valve plate is reduced, the disadvantages of the traditional butterfly valve are avoided, an actuator with smaller torque can be selected, the service life and the economical efficiency of the butterfly valve are greatly improved, but the butterfly valve has no internal hydraulic pressure sensing structure, so that the butterfly valve cannot be timely prevented from finding when the hydraulic pressure is abnormal, and the safety is poor;
2. the patent document CN112032323a discloses an adjustable valve seat for a metal pneumatic butterfly valve, which comprises a valve body component, a butterfly valve component and a pneumatic component, wherein the middle part of the valve body component is provided with a valve cavity, the left side and the right side of the valve cavity are both connected with a liquid flow pipe, the outer side of the liquid flow pipe is connected with a valve seat, a butt joint hole is uniformly and transversely arranged on the valve seat in a penetrating way, a valve regulating port is arranged at the top of the valve cavity, a mounting ring is fixedly arranged above the valve regulating port, a bolt hole is uniformly and vertically arranged above the mounting ring in a penetrating way, a valve rod is arranged in the middle part of the butterfly valve component, the butterfly valve component is positioned at the middle part of the inner side of the valve body component, a protective cover is arranged above the pneumatic component, and the pneumatic component is positioned above the valve body component.
3. Patent document CN216813054U discloses a pneumatic butterfly valve, "including two sets of installation mechanism, actuating mechanism and butterfly valve mechanism, the installation mechanism includes first slide bar, the mounting groove, first bracing piece, the dwang, the second bracing piece, the bull stick, the second slide bar, mount table and pivot, first slide bar and mounting groove fixed connection, the dwang rotates with the mounting groove to be connected, the second bracing piece rotates to be connected with the dwang, the bull stick rotates to be connected with first bracing piece, mount table and second slide bar sliding connection, the dwang rotates to be connected with the second bracing piece, make the contained angle between second bracing piece and the first bracing piece diminish, reach the effect of lifting the mount table, change the upper and lower height of installation mechanism and support two pipelines fixedly, can be stable install butterfly valve mechanism between the pipeline, in order to solve current pneumatic butterfly valve when installing at the pipeline with be difficult to dock, lead to the installation inconvenience", but it generally only has one deck seal structure, and leak phenomenon directly can appear when the problem occurs in single-layer seal structure;
4. patent document CN213575596U discloses a pneumatic butterfly valve, "comprising a valve seat, a valve body, a valve plate, a valve cover, an upper valve rod, a lower valve rod, a pneumatic actuator and an adjusting mechanism; the adjusting mechanism is fastened at the upper end of the pneumatic actuator through a fixing frame bolt, a movable transmission rod penetrates through the side wall of one end of the fixing frame, a first bevel gear is arranged at one end, close to the upper valve rod, of the transmission rod, a manual rotating wheel is arranged at the other end of the transmission rod, and an elastic piece is arranged between the manual rotating wheel and the outer wall of the fixing frame; the other end of the upper valve rod extends out of the pneumatic actuator and is fixedly sleeved with a second bevel gear matched with the first bevel gear; the valve can manually control the opening and closing states of the butterfly valve, has high reliability and can cope with the inconvenience caused by emergency; through set up sealing liner and sealing pad under the position of valve rod, valve plate and valve body contact mutually supporting sealing performance is effectual, and liquid is difficult for seepage and simple structure, with low costs ", but its butterfly valve is when locking, and its leakproofness relies on self and the coincide nature of valve body mostly for isolated locking effect is relatively poor.
Disclosure of Invention
The invention aims to provide a pneumatic full-lining butterfly valve with high safety and a use method thereof, which are used for solving the technical problems that the hydraulic sensing structure in the butterfly valve is not used in the valve, so that when the hydraulic pressure is abnormal, the hydraulic sensing structure cannot be timely found out, and the safety is poor.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a pneumatic full-lining butterfly valve that security is high, includes valve body, pneumatic assembly and block, the block is installed to the outer wall of valve body, control panel is installed to the outer wall of block, the observation window is installed in the block embedding, the cell body has been seted up to the inside of block, pressure sensor is installed in the embedding of the inside diapire of cell body, pressure sensor's pressure sensing end installs the regulating block, the spring is installed at the top of regulating block, the closing plate is installed at the top of spring, and closing plate and the laminating of the inner wall of cell body;
the inner wall of regulating block installs motor No. one, the reel is installed to motor No. one's output, the stay cord is installed in the outer wall winding of reel, and the one end and the bottom of closing plate of stay cord are connected.
Preferably, the pneumatic component is installed at the top of valve body, and pneumatic component's driving end extends into the inside of valve body, and pneumatic component's driving end installs the valve, and the installation cover is installed to the outer wall of valve body.
Preferably, a plurality of groups of cavities are formed in the valve, the inner wall of each cavity is provided with a piston, and the outer wall of each piston is provided with a fastening rod.
Preferably, the inside of valve has seted up the spread groove, and the multiunit intercommunicating pore has been seted up to the inner wall of spread groove, and the one end of every group intercommunicating pore extends into the inside of cavity, and extension hose is installed to the inner wall of spread groove, and extends the outer wall of valve body to the one end of hose.
Preferably, the slot body pore is communicated with the inside of the valve body, so that when the valve body is locked, liquid at one locking end is filled into the slot body through the pore, the pneumatic assembly is used for driving the valve to rotate in the valve body, thereby opening and closing of the butterfly valve are completed, the extending end of the extending hose is connected with an external air pump, and the cavity is uniformly formed in the valve.
Preferably, the annular groove is formed in the valve body, the second motor is installed on the inner wall of the annular groove, the screw is installed at the output end of the second motor, the transmission plate is installed on the outer wall of the screw, the partition plate is installed on the outer wall of the transmission plate, the annular inner ring is installed on the outer wall of the partition plate, the guide rod is installed on the inner wall of the annular groove, and one end of the guide rod extends into the transmission plate.
Preferably, a connecting plate is arranged at the end part of the annular inner ring, and a sealing gasket is arranged at the end part of the connecting plate.
Preferably, the gasbag is installed to the outer lane of valve, and the trigger piece is installed to the outer wall of valve, and the closure plate is installed to the inner wall of trigger piece, and the connecting plate is installed to the outer wall of closure plate, and No. three motors are installed to the inner wall of trigger piece, and the threaded rod is installed to the output of No. three motors, and the one end of threaded rod extends into the inside of connecting plate.
Preferably, the working steps of the butterfly valve are as follows:
s1, when the valve body is locked, liquid on the liquid isolation side of the valve body flows into the groove body through the fine holes, the liquid is filled at the bottom side of the sealing plate, the liquid pressure is gradually increased along with the filling of the liquid, the sealing plate is hydraulically and upwardly applied with upward force, so that the sealing plate transmits the force to the pressure sensor through the pull rope and the regulating block, the pressure sensor transmits the force to the control module, data are displayed on the display screen of the control panel, the monitoring by the detection personnel is facilitated, the loss is caused by the abnormal liquid pressure in the surface, and the safety is improved;
s2, after the pneumatic assembly drives the valve to move, the external air pump charges air through the extension hose, the air is injected into the cavity through the connecting groove and the communication hole, so that the piston is pushed by air pressure, the piston moves to drive the fastening rod to move, the fastening rod is contacted with the inner wall of the valve body, the valve is fastened, the stability of the valve is enhanced, and when the valve is driven again, the air pump pumps air, so that the fastening rod can be retracted into the cavity;
s3, the valve body is preliminarily connected by the mounting sleeve, an outer sealing structure is formed, the screw is driven to rotate by the rotation of the motor II, the transmission plate is driven to move by the rotation of the screw, the partition plate is driven to move by the movement of the transmission plate, the annular inner ring is driven to move by the movement of the partition plate, and the sealing gasket is driven to contact by the movement of the connection plate, so that the sealing gasket finally abuts against the end part of the pipeline, and an inner sealing is formed;
s4, the valve is generally locked and opened through rotation, when in a locking state, the third motor rotates to drive the threaded rod to rotate, the threaded rod rotates to drive the connecting plate to move, the connecting plate moves to drive the blocking plate to move, the blocking plate moves to squeeze stored liquid into the air bag, the air bag is inflated, and the air bag has an effect of reinforcing the locking on the valve.
The step S1 further includes the steps of:
s11, a motor I in the regulating block can drive the reel to rotate, the pull rope can be wound or loosened by the rotation of the reel, so that the sealing plate can be lifted, the lifting of the sealing plate can be regulated, the force sensed by the pressure sensor can be leveled at any time, and the accuracy of hydraulic measurement in each locking process is improved;
the step S3 further includes the steps of:
s31, a guide rod in the annular groove plays a role in guiding the transmission plate.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the pressure sensor and the sealing plate are arranged, when the valve body is locked, liquid on the liquid isolation side of the valve body flows into the groove body through the fine holes, the liquid fills the bottom side of the sealing plate, and along with the filling of the liquid, the liquid pressure of the sealing plate is gradually increased, the sealing plate is hydraulically upwards applied with upward force, so that the sealing plate transmits the force to the pressure sensor through the pull rope and the regulating block, the pressure sensor transmits the force to the control module, and data is displayed on the display screen of the control panel, so that the monitoring by a detector is facilitated, the loss is caused by the abnormal liquid pressure in the surface, and the safety is improved;
2. according to the invention, the piston and the fastening rod are arranged, after the pneumatic assembly drives the valve to move, the external air pump charges air through the extension hose, and air is injected into the cavity through the connecting groove and the communication hole, so that the piston is pushed by air pressure, the piston moves to drive the fastening rod to move, and the fastening rod is contacted with the inner wall of the valve body, so that the fastening effect on the valve is achieved, the stability of the valve is enhanced, and when the valve is re-driven, the air pump pumps air to retract the fastening rod into the cavity;
3. according to the invention, the valve body is preliminarily connected by the installation sleeve through the partition plate and the sealing gasket, an outer sealing structure is formed, the screw is driven to rotate by the rotation of the second motor, the transmission plate is driven to move by the rotation of the screw, the partition plate is driven to move by the movement of the transmission plate, the annular inner ring is driven to move by the movement of the partition plate, the connecting plate is driven to move by the movement of the annular inner ring, and the sealing gasket is driven to contact by the movement of the connecting plate, so that the sealing gasket finally abuts against the end part of the pipeline, and an inner sealing is formed;
4. according to the invention, the air bag and the blocking plate are arranged, the valve is normally locked and unlocked through rotation, and in a locking state, the third motor rotates to drive the threaded rod to rotate, the threaded rod rotates to drive the connecting plate to move, the connecting plate moves to drive the blocking plate to move, and the blocking plate moves to squeeze stored liquid into the air bag, so that the air bag bulges, and the air bag has an effect of reinforcing locking on the valve.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a block according to the present invention;
FIG. 3 is a schematic diagram of a tank structure according to the present invention;
FIG. 4 is a schematic view of a valve structure according to the present invention;
FIG. 5 is a schematic view of structure A of the present invention;
FIG. 6 is a schematic view of the annular groove structure of the present invention;
FIG. 7 is a schematic diagram of a trigger block according to the present invention;
fig. 8 is a schematic flow chart of the present invention.
In the figure: 1. a valve body; 2. a pneumatic assembly; 3. a valve; 4. a mounting sleeve; 5. a block; 6. a control panel; 7. an observation window; 8. a tank body; 9. a pressure sensor; 10. an adjusting block; 11. a spring; 12. a sealing plate; 13. a motor I; 14. a reel; 15. a pull rope; 16. a cavity; 17. a piston; 18. a fastening rod; 19. a connecting groove; 20. a communication hole; 21. extending the hose; 22. an annular groove; 23. a motor II; 24. a screw; 25. a drive plate; 26. a partition plate; 27. an annular inner ring; 28. a guide rod; 29. a connecting plate; 30. a sealing gasket; 31. an air bag; 32. a trigger block; 33. a closure plate; 34. a connecting plate; 35. a third motor; 36. and (3) a screw.
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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides: the utility model provides a pneumatic full lining butterfly valve that security is high, includes valve body 1, pneumatic subassembly 2 and block 5, pneumatic subassembly 2 is installed at the top of valve body 1, and the driving end of pneumatic subassembly 2 extends into the inside of valve body 1, and the driving end of pneumatic subassembly 2 installs valve 3, installation cover 4 is installed to the outer wall of valve body 1, block 5 is installed to the outer wall of valve body 1, control panel 6 is installed to the outer wall of block 5, observation window 7 is installed in the embedding of block 5, cell body 8 has been seted up to the inside of block 5, pressure sensor 9 is installed to the inside diapire embedding of cell body 8, regulating block 10 is installed at the pressure sensing end of pressure sensor 9, spring 11 is installed at the top of regulating block 10, sealing plate 12 is installed at the top of spring 11, and sealing plate 12 and cell body 8's inner wall laminating, motor 13 is installed to the inner wall of regulating block 10, reel 14's outer wall winding installation 15, and the one end of 15 and sealing plate 12 are connected to the bottom of sealing plate 1 at its bottom of sealing plate 12, and the pressure sensor's 1 is connected to its side of valve body 1, and the pressure sensor is supplied with the pressure sensor is installed to its pressure sensor to the inside through the pressure sensor 9, and the pressure sensor is realized the pressure sensor is improved to the side of its liquid, and the liquid is filled up the pressure sensor is filled up to its side, and is the pressure sensor is filled up to the side is the side 9, and is the pressure sensor is opened to be filled with the pressure sensor is the pressure 9.
Referring to fig. 4 and 5, a plurality of groups of cavities 16 are provided in the valve 3, a piston 17 is installed on the inner wall of the cavity 16, a fastening rod 18 is installed on the outer wall of the piston 17, a connecting groove 19 is provided in the valve 3, a plurality of groups of communication holes 20 are provided in the inner wall of the connecting groove 19, one end of each group of communication holes 20 extends into the cavity 16, an extension hose 21 is installed on the inner wall of the connecting groove 19, one end of the extension hose 21 extends out of the outer wall of the valve body 1, the pores of the groove 8 are communicated with the inner wall of the valve body 1, when the valve body 1 is locked, liquid at one end of the locking is filled into the groove 8 through the pores, a pneumatic component 2 is used for driving the valve 3 to rotate in the valve body 1, so as to open and close the butterfly valve, the extension end of the extension hose 21 is connected with an external air pump, the cavity 16 is uniformly provided in the inner wall of the valve 3, after the pneumatic component 2 drives the valve 3 to move, the external air pump is inflated through the extension hose 21, and air is injected into the cavity 16 through the connecting groove 19 and the communication holes 20, so that the piston 17 is pushed by air pressure, the piston 17 moves to drive the fastening rod 18 to be in contact with the inner wall of the valve body 1, namely, the valve body 3 is firmly fastened, and the valve body 3 is firmly can be fastened, and the valve body 3 is tightly and the valve body is tightly contacted.
Referring to fig. 1 and 6, the valve body 1 is provided with an annular groove 22, the inner wall of the annular groove 22 is provided with a second motor 23, the output end of the second motor 23 is provided with a screw 24, the outer wall of the screw 24 is provided with a transmission plate 25, the outer wall of the transmission plate 25 is provided with a baffle 26, the outer wall of the baffle 26 is provided with an annular inner ring 27, the inner wall of the annular groove 22 is provided with a guide rod 28, one end of the guide rod 28 extends into the transmission plate 25, the end of the annular inner ring 27 is provided with a connecting plate 29, the end of the connecting plate 29 is provided with a sealing gasket 30, the valve body 1 is primarily connected by the installation sleeve 4, an outer sealing structure is formed, then the second motor 23 rotates to drive the screw 24 to rotate, the screw 24 rotates to drive the transmission plate 25 to move, the transmission plate 25 moves to drive the baffle 26 to drive the annular inner ring 27 to move, the annular inner ring 27 to drive the connecting plate 29 to move, and the connecting plate 29 moves to drive the sealing gasket 30 to contact, so that the sealing gasket 30 finally props against the end of a pipeline, thereby forming an inner seal, the valve body 1, and the valve body is provided with a double-layer sealing structure, and the possibility of leakage is reduced.
Referring to fig. 1 and 7, the air bag 31 is installed on the outer ring of the valve 3, the trigger block 32 is installed on the outer wall of the valve 3, the blocking plate 33 is installed on the inner wall of the trigger block 32, the connecting plate 34 is installed on the outer wall of the blocking plate 33, the No. three motor 35 is installed on the inner wall of the trigger block 32, the threaded rod 36 is installed at the output end of the No. three motor 35, one end of the threaded rod 36 extends into the connecting plate 34, the valve 3 is normally locked and unlocked through rotation, when in a locked state, the No. three motor 35 rotates to drive the threaded rod 36 to rotate, the threaded rod 36 rotates to drive the connecting plate 34 to move, the connecting plate 34 moves to drive the blocking plate 33 to move, and the stored liquid is extruded into the air bag 31 through the movement of the blocking plate 33, so that the air bag 31 bulges, and the air bag 31 has an effect of reinforcing locking on the valve 3.
The working steps of the butterfly valve are as follows:
s1, when the valve body 1 is locked, liquid on one side of the valve body 1 isolated from liquid flows into the groove body 8 through the fine holes, the liquid fills the bottom side of the sealing plate 12, and along with the filling of the liquid, the hydraulic pressure of the sealing plate 12 is gradually increased, the sealing plate 12 is exerted with upward force by the hydraulic pressure, so that the sealing plate 12 transmits the force to the pressure sensor 9 through the pull rope 15 and the regulating block 10, the pressure sensor 9 transmits the force to the control module, and data is displayed on a display screen of the control panel 6, so that the monitoring by a detector is facilitated, the loss is caused by the abnormal hydraulic pressure in the surface, and the safety is improved;
s2, after the pneumatic assembly 2 drives the valve 3 to move, the external air pump charges air through the extension hose 21, the air is injected into the cavity 16 through the connecting groove 19 and the communication hole 20, so that the piston 17 is pushed by air pressure, the piston 17 moves to drive the fastening rod 18 to move, the fastening rod 18 contacts with the inner wall of the valve body 1, the valve 3 is fastened, the stability of the valve 3 is enhanced, and when the valve 3 is re-driven, the air pump pumps air to retract the fastening rod 18 into the cavity 16;
s3, the valve body 1 is preliminarily connected by the mounting sleeve 4, an outer sealing structure is formed, then the second motor 23 rotates to drive the screw 24 to rotate, the screw 24 rotates to drive the transmission plate 25 to move, the transmission plate 25 moves to drive the partition plate 26 to move, the partition plate 26 moves to drive the annular inner ring 27 to move, the annular inner ring 27 moves to drive the connecting plate 29 to move, and the connecting plate 29 moves to drive the sealing gasket 30 to contact, so that the sealing gasket 30 finally abuts against the end part of the pipeline, and an inner sealing structure is formed;
s4, the valve 3 is generally locked and opened through rotation, when in a locking state, the motor 35 is rotated to drive the threaded rod 36 to rotate, the threaded rod 36 is rotated to drive the connecting plate 34 to move, the connecting plate 34 is moved to drive the blocking plate 33 to move, and the blocking plate 33 is moved to squeeze stored liquid into the air bag 31, so that the air bag 31 bulges, and the air bag 31 has the effect of reinforcing the locking of the valve 3.
The step S1 further includes the steps of:
s11, a motor 13 in the regulating block 10 can drive a reel 14 to rotate, the reel 14 can wind or loosen a pull rope 15 when rotating, so that the sealing plate 12 is lifted, and the lifting of the sealing plate 12 can be regulated, so that the force sensed by the pressure sensor 9 can be leveled at any time, and the accuracy of hydraulic measurement in each locking process is improved;
the step S3 further includes the steps of:
and S31, a guide rod in the annular groove 22 plays a role in guiding the transmission plate 25.
The working principle is that when the valve body 1 is locked, liquid on the liquid isolation side of the valve body 1 flows into the groove body 8 through the fine holes, the liquid fills the bottom side of the sealing plate 12, and along with the filling of the liquid, the liquid pressure of the sealing plate 12 is gradually increased, the sealing plate 12 is exerted with upward force by the liquid pressure, so that the sealing plate 12 transmits the force to the pressure sensor 9 through the pull rope 15 and the regulating block 10, the pressure sensor 9 transmits the force to the control module, and data is displayed on the display screen of the control panel 6, so that the monitoring by the detection personnel is convenient, the loss is caused by abnormal liquid pressure in the surface, the safety is improved, after the pneumatic assembly 2 drives the valve 3 to move, the external air pump is inflated through the extension hose 21, the air is injected into the cavity 16 through the connecting groove 19 and the communication hole 20, the piston 17 is pushed by the air pressure, the piston 17 moves to drive the fastening rod 18 to move, the fastening rod 18 is contacted with the inner wall of the valve body 1, thereby playing a role of fastening the valve 3, strengthening the stability of the valve 3, when the valve 3 is re-driven, the air pump pumps air, the fastening rod 18 can retract into the cavity 16, the valve body 1 is preliminarily connected by the mounting sleeve 4, an outer sealing structure is formed, then the screw 24 is driven to rotate by the rotation of the second motor 23, the transmission plate 25 is driven to move by the rotation of the screw 24, the baffle 26 is driven to move by the movement of the baffle 26, the annular inner ring 27 is driven to move by the movement of the annular inner ring 29, the sealing pad 30 is driven to contact by the movement of the connecting plate 29, so that the sealing pad 30 finally abuts against the end part of the pipeline, thereby forming an inner seal, the structure can enable the valve body 1 to form a double-layer sealing structure, improve the tightness, reduce the possibility of leakage, and the valve 3 is normally locked and opened by rotation, in the locking state, the third motor 35 rotates to drive the threaded rod 36 to rotate, the threaded rod 36 rotates to drive the connecting plate 34 to move, the connecting plate 34 moves to drive the blocking plate 33 to move, and the blocking plate 33 moves to squeeze stored liquid into the air bag 31, so that the air bag 31 bulges.
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.
Claims (3)
1. The utility model provides a pneumatic full-lining butterfly valve that security is high, includes valve body (1), pneumatic subassembly (2) and block (5), its characterized in that: the automatic sealing device is characterized in that a block body (5) is arranged on the outer wall of the valve body (1), a control panel (6) is arranged on the outer wall of the block body (5), an observation window (7) is embedded in the block body (5), a groove body (8) is formed in the block body (5), a pressure sensor (9) is embedded in the bottom wall of the groove body (8), an adjusting block (10) is arranged at the pressure sensing end of the pressure sensor (9), a spring (11) is arranged at the top of the adjusting block (10), a sealing plate (12) is arranged at the top of the spring (11), and the sealing plate (12) is attached to the inner wall of the groove body (8);
a first motor (13) is arranged on the inner wall of the regulating block (10), a reel (14) is arranged at the output end of the first motor (13), a pull rope (15) is wound on the outer wall of the reel (14), and one end of the pull rope (15) is connected with the bottom of the sealing plate (12);
the top of the valve body (1) is provided with a pneumatic assembly (2), the driving end of the pneumatic assembly (2) extends into the valve body (1), the driving end of the pneumatic assembly (2) is provided with a valve (3), and the outer wall of the valve body (1) is provided with a mounting sleeve (4);
a plurality of groups of cavities (16) are formed in the valve (3), a piston (17) is arranged on the inner wall of each cavity (16), and a fastening rod (18) is arranged on the outer wall of each piston (17);
a connecting groove (19) is formed in the valve (3), a plurality of groups of communication holes (20) are formed in the inner wall of the connecting groove (19), one end of each group of communication holes (20) extends into the cavity (16), an extension hose (21) is mounted on the inner wall of the connecting groove (19), and one end of the extension hose (21) extends out of the outer wall of the valve body (1);
the slot body (8) is communicated with the inside of the valve body (1), when the valve body (1) is locked, liquid at one locking end is filled into the slot body (8) through the slot, the pneumatic assembly (2) is used for driving the valve (3) to rotate in the valve body (1), so that the butterfly valve is opened and closed, the extending end of the extending hose (21) is connected with an external air pump, and the cavity (16) is uniformly formed in the valve (3);
an annular groove (22) is formed in the valve body (1), a second motor (23) is arranged on the inner wall of the annular groove (22), a screw (24) is arranged at the output end of the second motor (23), a transmission plate (25) is arranged on the outer wall of the screw (24), a partition plate (26) is arranged on the outer wall of the transmission plate (25), an annular inner ring (27) is arranged on the outer wall of the partition plate (26), a guide rod (28) is arranged on the inner wall of the annular groove (22), and one end of the guide rod (28) extends into the transmission plate (25);
a connecting plate (29) is arranged at the end part of the annular inner ring (27), and a sealing gasket (30) is arranged at the end part of the connecting plate (29);
the outer lane of valve (3) is installed gasbag (31), and trigger piece (32) are installed to the outer wall of valve (3), and closure plate (33) are installed to the inner wall of trigger piece (32), and connecting plate (34) are installed to the outer wall of closure plate (33), and No. three motor (35) are installed to the inner wall of trigger piece (32), and threaded rod (36) are installed to the output of No. three motor (35), and the inside of connecting plate (34) is extended into to the one end of threaded rod (36).
2. The method for using a high-safety pneumatic full-lining butterfly valve according to claim 1, wherein the working steps of the butterfly valve are as follows:
s1, when the valve body (1) is locked, liquid at one side of the valve body (1) isolated from liquid flows into the groove body (8) through the fine holes, the liquid fills the bottom side of the sealing plate (12), the liquid pressure of the sealing plate is gradually increased along with the filling of the liquid, the sealing plate (12) is applied with upward force by the liquid pressure, the sealing plate (12) transmits the force to the pressure sensor (9) through the pull rope (15) and the regulating block (10), the pressure sensor (9) transmits the force to the control module, and data is displayed on the display screen of the control panel (6), so that the monitoring by a detector is facilitated, the loss is caused by the abnormal liquid pressure in the surface, and the safety is improved;
s2, after the pneumatic assembly (2) drives the valve (3) to move, the external air pump charges air through the extension hose (21), the air is injected into the cavity (16) through the connecting groove (19) and the communication hole (20), so that the piston (17) is pushed by air pressure, the piston (17) moves to drive the fastening rod (18) to move, the fastening rod (18) is in contact with the inner wall of the valve body (1), the valve (3) is fastened, the stability of the valve (3) is enhanced, and when the valve (3) is driven again, the air pump pumps air to retract the fastening rod (18) into the cavity (16);
s3, the valve body (1) is preliminarily connected through the mounting sleeve (4) to form an outer-layer sealing structure, then the second motor (23) rotates to drive the screw rod (24) to rotate, the screw rod (24) rotates to drive the transmission plate (25) to move, the transmission plate (25) moves to drive the partition plate (26) to move, the partition plate (26) moves to drive the annular inner ring (27) to move, the annular inner ring (27) moves to drive the connecting plate (29) to move, and the connecting plate (29) moves to drive the sealing gasket (30) to contact, so that the sealing gasket (30) finally abuts against the end part of the pipeline to form an inner seal, the structure can enable the valve body (1) to form a double-layer sealing structure, the sealing performance is improved, and the possibility of leakage is reduced;
s4, the valve (3) is generally locked and opened through rotation, when in a locking state, a third motor (35) rotates to drive a threaded rod (36) to rotate, the threaded rod (36) rotates to drive a connecting plate (34) to move, the connecting plate (34) moves to drive a blocking plate (33) to move, and the blocking plate (33) moves to squeeze stored liquid into the air bag (31) so that the air bag (31) bulges, and the air bag (31) plays a role in reinforcing the locking effect on the valve (3).
3. The method of using a high-safety pneumatic full-lining butterfly valve according to claim 2, wherein the step S1 further comprises the steps of:
s11, a motor (13) in the regulating block (10) can drive a reel (14) to rotate, and the reel (14) can wind or loosen a pull rope (15) to enable the sealing plate (12) to lift, and the lifting of the sealing plate (12) can be regulated, so that the force sensed by the pressure sensor (9) can be leveled at any time, and the accuracy of hydraulic measurement in each locking process is improved;
the step S3 further includes the steps of:
s31, a guide rod in the annular groove (22) plays a role in guiding the driving plate (25).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211587404.6A CN115962290B (en) | 2022-12-11 | 2022-12-11 | Pneumatic full-lining butterfly valve with high safety and use method thereof |
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| CN202211587404.6A CN115962290B (en) | 2022-12-11 | 2022-12-11 | Pneumatic full-lining butterfly valve with high safety and use method thereof |
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| CN115962290B true CN115962290B (en) | 2023-11-14 |
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| CN117189885B (en) * | 2023-11-06 | 2024-01-09 | 德阳市东方恒运电机有限公司 | Butterfly valve with protection device |
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| CN216591101U (en) * | 2021-11-30 | 2022-05-24 | 江西省天然气管道有限公司运营分公司 | A prevent leaking natural gas line for pipe network monitored control system |
| CN216813054U (en) * | 2021-12-24 | 2022-06-24 | 上海能化自控设备有限公司 | Pneumatic butterfly valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2235988A1 (en) * | 1972-07-21 | 1974-01-31 | Linde Ag | BARRIER |
| CN104806771A (en) * | 2015-04-18 | 2015-07-29 | 温州巴尔阀门有限公司 | Pneumatic expansion butterfly valve |
| CN111237499A (en) * | 2020-03-03 | 2020-06-05 | 杨皓然 | Intelligent ceramic valve |
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| CN112217141A (en) * | 2020-10-21 | 2021-01-12 | 高洁 | Electric power overhaul system capable of carrying out self-checking and alarming on line |
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