CN112128388B

CN112128388B - Pneumatic stop valve

Info

Publication number: CN112128388B
Application number: CN202011211267.7A
Authority: CN
Inventors: 项敬泽
Original assignee: Anhui Longze Industrial Co ltd
Current assignee: Anhui Longze Industrial Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2023-06-30
Anticipated expiration: 2040-11-03
Also published as: CN112128388A

Abstract

The invention discloses a pneumatic stop valve, which belongs to the technical field of valves and comprises a valve body, wherein one end of the valve body is fixedly connected with a discharging pipe, the other end of the valve body is provided with a feeding pipe, the outer wall of the feeding pipe is fixedly connected with the outer wall of the valve body, the inner wall of the valve body is fixedly provided with a valve seat, the inner wall of the valve seat is movably connected with a valve core, the inside of the valve seat comprises a separation table, the outer wall of the separation table is fixedly connected with the inner wall of the valve body, the inner wall of the separation table is fixedly provided with a heat conducting plate, the inner wall of the separation table is fixedly provided with a sealing ring I, the outer wall of the separation table is fixedly provided with an electromagnet, the inner part of the valve core comprises a clamping seat, and the outer wall of the clamping seat is movably connected with the inner wall of the valve seat. The electric heating wire can prevent the liquid in the valve body from solidifying at low temperature, so that the valve core and the valve seat are influenced to be opened and closed, and the heat transfer can be accelerated through the heat conducting plate, so that the liquid in the valve body is heated uniformly.

Description

Pneumatic stop valve

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a pneumatic stop valve.

Background

The stop valve, also called a stop valve, is one of the most widely used valves, and is popular because the friction force between sealing surfaces in the opening and closing process is small, the stop valve is durable, the opening height is small, the manufacture is easy, the maintenance is convenient, and the stop valve is not only suitable for medium and low pressure, but also suitable for high pressure. The closing principle of the stop valve is that the valve clack sealing surface is tightly attached to the valve seat sealing surface by means of the valve lever pressure, so that medium circulation is prevented. The valve 'three types' in China stipulates that the flow direction of the stop valve is uniformly from top to bottom, so that the valve has directivity during installation. The structural length of the stop valve is larger than that of the gate valve, meanwhile, the fluid resistance is large, and the sealing reliability is not strong during long-term operation. The opening and closing member of the pneumatic stop valve is a plug-shaped valve clack, the sealing surface is a plane or a conical surface, and the valve clack moves linearly along the central line of the fluid. The valve rod has a lifting rod type (the valve rod is lifted and the hand wheel is not lifted) and a lifting rotating rod type (the hand wheel and the valve rod rotate and lift together), and the nut is arranged on the valve body. The shut-off valve is only suitable for full opening and full closing and does not allow for regulation and throttling.

Still there is the gap between disk seat and the case, under low temperature condition, lubricating oil or moisture infiltration easily produces and solidifies, is unfavorable for opening once more, opens and close repeatedly under the jam state moreover and cause the damage to stop valve internals easily, reduces the life of stop valve, improves stop valve change frequency, increases the cost, and for this reason, we propose a pneumatic stop valve to solve above-mentioned problem.

Disclosure of Invention

The invention aims to provide a pneumatic stop valve, which solves the problems that in the prior art, because gaps are still reserved between a valve seat and a valve core in the use process of the pneumatic stop valve, lubricating oil or moisture is easy to infiltrate and solidify under the low-temperature condition, so that the pneumatic stop valve is unfavorable for restarting, and the internal components of the stop valve are easy to damage due to repeated opening and closing under the blocking state, the service life of the stop valve is reduced, the replacement frequency of the stop valve is improved, and the cost is increased.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a pneumatic stop valve, includes the valve body, the one end fixedly connected with discharging pipe of valve body, the other end of valve body is provided with the inlet pipe, the outer wall of inlet pipe and the outer wall fixed connection of valve body, the inner wall fixed mounting of valve body has the disk seat, the inner wall swing joint of disk seat has the case, the inside of disk seat includes separates the platform, the outer wall of separating the platform and the inner wall fixed connection of valve body, the inner wall fixed mounting who separates the platform has the heat-conducting plate, the inner wall fixed mounting who separates the platform has sealing washer one, the outer wall fixed mounting who separates the platform has the electro-magnet.

Preferably, the inside of case includes the chucking seat, the outer wall of chucking seat and the inner wall swing joint of disk seat, the fixed mounting of one end of chucking seat has an arc platform, the outer wall fixed mounting of going up arc platform has the electric heating wire, the top fixed mounting of going up arc platform has the solid fixed ring.

Through adopting above-mentioned technical scheme, electric heater strip can prevent that the liquid in the valve body from solidifying under low temperature, guarantees the normal operating of this device, prevents to open and close repeatedly under the disk seat blocking state and causes the damage to case and disk seat internals easily, prolongs the life of stop valve, can accelerate heat transfer through the heat-conducting plate.

Preferably, the outer wall bottom fixed mounting of chucking seat has arc platform down, the inner wall fixed mounting of chucking seat has an adjusting cylinder, the inside of adjusting cylinder is provided with the magnetism and inhales the piece, the outer wall of magnetism is inhaled the piece and is adjusted the inner wall swing joint of section of thick bamboo, the outer wall fixed mounting of chucking seat has sealing washer two.

Through adopting above-mentioned technical scheme, electro-magnet and magnetism inhale the piece and can prevent that the stop valve from starting by mistake to can make case and disk seat accurate counterpoint, further effectively fixed case and disk seat, improve the leakproofness.

Preferably, the top of case is provided with the valve rod, the bottom of valve rod and the top fixed connection of case, the outer wall swing joint of valve rod has lower connection table, the outer wall fixed mounting of lower connection table has the joint piece, the inner wall threaded connection of joint piece has the screw rod, the outer wall threaded connection of screw rod has the stopper, the one end outer wall threaded connection of screw rod has the snap ring.

Through adopting above-mentioned technical scheme, the screw rod is connected joint piece and stopper, and the joint is fixed between joint piece and the stopper, and easy to assemble is fixed.

Preferably, the outer wall fixed mounting of stopper has last connection platform, the bottom of going up the connection platform and the top fixed connection of connecting the platform down, the inner wall fixed mounting of going up the connection platform has spacing platform, the top fixed mounting of going up the connection platform has the regulation seat, the inner wall swing joint of going up the connection platform has the connecting rod, the top fixed connection of one end and the valve rod of going up the connecting rod, the right-hand member fixed mounting of regulation seat has the surge damping tube.

Through adopting above-mentioned technical scheme, the regulating seat plays buffering and adjusts the effect that the valve rod goes up and down, connects upper and lower device through last connection platform and lower connection platform

Preferably, the inside of the pressure regulating pipe comprises a pipe body, a sliding groove is formed in the inner wall of the pipe body, a sliding table is connected to the inner wall of the sliding groove in a sliding mode, a fixed column is arranged on the outer wall of the sliding table, one end of the fixed column is fixedly connected with the outer wall of the sliding table, a sealing gasket is fixedly arranged at the other end of the fixed column, a sealing cover is arranged at one end, far away from the fixed column, of the sealing gasket, and the outer wall of the sealing cover is fixedly connected with the outer wall of the fixed column.

Through adopting above-mentioned technical scheme, when atmospheric pressure is higher in the regulation seat, the sliding table slides, and the fixed column drives sealed pad and sealed lid and removes, sealed lid leaves the body, and gas release reduces the pressure in the regulation seat.

Preferably, the outer wall of going up the connecting rod is provided with adjusting spring, adjusting spring's inner wall and the outer wall swing joint of going up the connecting rod, adjusting seat's top fixed mounting has the connecting seat, the inner wall of connecting seat and the outer wall swing joint of last connecting rod, the top fixed mounting of connecting seat has the fixed station.

Through adopting above-mentioned technical scheme, go up connecting rod extrusion adjusting spring, adjusting spring can further adjust the ascending or descending speed of control valve rod, guarantees valve rod steadily and rises or descend.

Preferably, the inner wall fixed mounting of fixed station has the spacing ring, the inner wall fixed mounting of spacing ring has the intake pipe, the one end fixed mounting who keeps away from the fixed station of intake pipe has the control valve, the top of fixed station is provided with the cylinder, the one end and the top fixed connection of fixed station of cylinder, the other end fixed mounting of cylinder has the adjusting knob.

By adopting the technical scheme, the air inlet and the air outlet of the air inlet pipe are controlled by the control valve, and the pressure in the air cylinder is adjusted.

Preferably, the bottom of the valve body is provided with a mounting base, and the top of the mounting base is fixedly connected with the bottom of the valve body.

Through adopting above-mentioned technical scheme, the installation base is used for connecting the fixed this device, improves the stability of this device.

Compared with the prior art, the invention has the beneficial effects that:

1. can prevent through the electric heating wire that liquid in the valve body from solidifying under the low temperature, prevent the valve jam, guarantee the normal operating of this device, prevent to open and close repeatedly under the disk seat jam state and cause the damage to case and disk seat inner member easily, the life of extension stop valve reduces the cost to can accelerate heat transfer through the heat-conducting plate, further avoid liquid to solidify, go up arc platform and lower arc platform surface level and smooth convenient washing in addition, and when the case risees, go up arc platform and liquid area of contact is big, can disperse the atress, be favorable to the valve rod to rise.

2. Can prevent through electro-magnet and magnetism and inhale the piece that the stop valve is started by mistake to can make case and disk seat accurate counterpoint, further effectively fixed case and disk seat improve the leakproofness, dislocation when preventing case and disk seat use, the electro-magnet circular telegram has magnetism and magnetism to inhale the piece and attract each other, and the magnetism is inhaled the piece and is inhaled the electro-magnet attraction roll-off, and the electro-magnet outage back, the magnetism is inhaled the piece and is got back to in the chucking seat.

3. Can prevent through the pressure regulating pipe that the atmospheric pressure in the regulation seat from excessively influencing the lift of valve rod, when the atmospheric pressure is higher in the regulation seat, the sliding table slides in the body, and the fixed column drives sealed pad and sealed lid and removes, and sealed pad and sealed lid leave the body, and gas release reduces the pressure in the regulation seat and avoids the inside gas pressure of device too big to cause the device to damage.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2B according to the present invention;

fig. 5 is an enlarged view of fig. 2C according to the present invention.

In the figure: 1. a valve body; 2. a discharge pipe; 3. a feed pipe; 4. a valve seat; 401. a partition table; 402. a heat conductive plate; 403. a first sealing ring; 404. an electromagnet; 5. a valve core; 501. a clamping seat; 502. an upper arc-shaped table; 503. an electric heating wire; 504. a fixing ring; 505. a lower arc table; 506. a magnetic suction block; 507. a second sealing ring; 6. a valve stem; 7. a lower connecting table; 8. a clamping block; 9. a screw; 10. a clasp; 11. a limiting block; 12. an upper connecting table; 13. an adjusting seat; 14. an upper connecting rod; 15. a pressure regulating tube; 1501. a tube body; 1502. a sliding table; 1503. fixing the column; 1504. a sealing gasket; 1505. sealing cover; 16. an adjusting spring; 17. a connecting seat; 18. a fixed table; 19. a limiting ring; 20. an air inlet pipe; 21. a control valve; 22. a cylinder; 23. an adjusting knob; 24. and (5) installing a base.

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.

Referring to fig. 1-5, the present invention provides a technical solution: the pneumatic stop valve comprises a valve body 1, one end of the valve body 1 is fixedly connected with a discharge pipe 2, the other end of the valve body 1 is provided with a feed pipe 3, the outer wall of the feed pipe 3 is fixedly connected with the outer wall of the valve body 1, the inner wall of the valve body 1 is fixedly provided with a valve seat 4, the inner wall of the valve seat 4 is movably connected with a valve core 5, the inside of the valve seat 4 comprises a separation table 401, the outer wall of the separation table 401 is fixedly connected with the inner wall of the valve body 1, the inner wall of the separation table 401 is fixedly provided with a heat conducting plate 402, the inner wall of the separation table 401 is fixedly provided with a sealing ring I403, and the outer wall of the separation table 401 is fixedly provided with an electromagnet 404.

In this embodiment, heat transfer can be quickened through heat-conducting plate 402, further avoid the liquid to solidify, guarantee the normal operating of this device, prevent to open and close repeatedly under disk seat 4 blocking state and cause the damage to case 5 and disk seat 4 internals easily, prolong the life of stop valve, reduce the cost.

Specifically, the inside of case 5 includes chucking seat 501, and chucking seat 501's outer wall and disk seat 4's inner wall swing joint, and chucking seat 501's one end fixed mounting has last arc platform 502, and the outer wall fixed mounting of going up arc platform 502 has electric heater strip 503, and the top fixed mounting of going up arc platform 502 has solid fixed ring 504.

In this embodiment, can prevent through electric heating wire 503 that the liquid in the valve body 1 from solidifying under low temperature, prevent that the valve from blockking up, guarantee the normal operating of this device, prevent to open and close repeatedly under disk seat 4 blocking up the state and cause the damage to case 5 and disk seat 4 internals easily, prolong the life of stop valve, go up arc platform 502 and lower arc platform 505 surface level and smooth, the convenient washing to when case 5 risees, go up arc platform 502 and liquid area of contact is big, can disperse the atress, be favorable to valve rod 6 to rise.

Specifically, the outer wall bottom fixed mounting of chucking seat 501 has arc platform 505 down, and the inner wall fixed mounting of chucking seat 501 has an adjustment section of thick bamboo, and the inside of adjusting the section of thick bamboo is provided with magnetism and inhales piece 506, and the outer wall of magnetism is inhaled piece 506 and the inner wall swing joint of adjustment section of thick bamboo, and the outer wall fixed mounting of chucking seat 501 has sealing washer two 507.

In this embodiment, electro-magnet 404 and magnetic attraction piece 506 can prevent that the stop valve from starting by mistake, and electro-magnet 404 circular telegram has magnetism and magnetic attraction piece 506 looks each other, makes case 5 and disk seat 4 accurate counterpoint, further effectively fixes case 5 and disk seat 4, improves disk seat 4 and case 5 leakproofness, and dislocation when preventing case 4 and disk seat 5 use, magnetic attraction piece 506 is attracted by electro-magnet 404 and slides, and electro-magnet 404 outage back, magnetic attraction piece 506 gets back to in chucking seat 501, makes case 5 normally open and close.

Specifically, the top of case 5 is provided with valve rod 6, the bottom of valve rod 6 and the top fixed connection of case 5, and the outer wall swing joint of valve rod 6 has lower connection platform 7, and the outer wall fixed mounting of lower connection platform 7 has joint piece 8, and the inner wall threaded connection of joint piece 8 has screw rod 9, and the outer wall threaded connection of screw rod 9 has stopper 11, and the one end outer wall threaded connection of screw rod 9 has snap ring 10.

In this embodiment, connect joint piece 8 and stopper 11 through screw rod 9, joint is fixed between joint piece 8 and the stopper 11, easy to assemble, further improves the stability between connection platform 12 and the lower connection platform 7, goes up connection platform 12 top device and removes when avoiding using.

Specifically, the outer wall fixed mounting of stopper 11 has last connection platform 12, and the bottom of going up connection platform 12 and the top fixed connection of lower connection platform 7, and the inner wall fixed mounting of going up connection platform 12 has the spacing platform, and the top fixed mounting of going up connection platform 12 has regulation seat 13, and the inner wall swing joint of going up connection platform 12 has last connecting rod 14, and the one end of going up connecting rod 14 and the top fixed connection of valve rod 6, the right-hand member fixed mounting of regulation seat 13 has pressure regulating tube 15.

In this embodiment, the adjusting seat 13 plays a role of buffering, and the upper and lower devices are connected through the upper connection table 12 and the lower connection table 7.

Specifically, the pressure regulating pipe 15 includes a pipe body 1501, a chute is provided on an inner wall of the pipe body 1501, a sliding table 1502 is slidably connected to an inner wall of the chute, a fixed column 1503 is provided on an outer wall of the sliding table 1502, one end of the fixed column 1503 is fixedly connected to an outer wall of the sliding table 1502, a sealing pad 1504 is fixedly arranged at the other end of the fixed column 1503, a sealing cover 1505 is provided on one end, far away from the fixed column 1503, of the sealing pad 1504, and an outer wall of the sealing cover 1505 is fixedly connected to an outer wall of the fixed column 1503.

In this embodiment, the pressure regulating tube 15 can prevent the excessive air pressure in the regulating seat 13 from affecting the lifting of the valve rod 6, when the air pressure in the regulating seat 13 is higher, the sliding table 1502 slides in the tube 1501, the fixed column 1503 drives the sealing gasket 1504 and the sealing cover 1505 to move, the sealing gasket 1504 and the sealing cover 1505 leave the tube 1501, the air is released, and the pressure in the regulating seat 13 is reduced.

Specifically, the outer wall of the upper connecting rod 14 is provided with an adjusting spring 16, the inner wall of the adjusting spring 16 is movably connected with the outer wall of the upper connecting rod 14, a connecting seat 17 is fixedly arranged at the top of the adjusting seat 13, the inner wall of the connecting seat 17 is movably connected with the outer wall of the upper connecting rod 14, and a fixing table 18 is fixedly arranged at the top of the connecting seat 17.

In this embodiment, when the valve rod 6 ascends or descends, the upper connecting rod 14 presses the adjusting spring 16, and the adjusting spring 16 can further adjust the ascending or descending speed of the control valve rod 6, so as to ensure that the valve rod 6 ascends or descends stably.

Specifically, the inner wall fixed mounting of fixed station 18 has spacing ring 19, and the inner wall fixed mounting of spacing ring 19 has intake pipe 20, and the one end fixed mounting that intake pipe 20 kept away from fixed station 18 has control valve 21, and the top of fixed station 18 is provided with cylinder 22, and the one end of cylinder 22 and the top fixed connection of fixed station 18, the other end fixed mounting of cylinder 22 has adjusting knob 23.

In this embodiment, the control valve 21 controls the intake pipe 20 to intake air, and adjusts the pressure in the cylinder 22, so as to control the lifting of the valve rod 6.

Specifically, the bottom of valve body 1 is provided with installation base 24, and the top of installation base 24 and the bottom fixed connection of valve body 1.

In this embodiment, the mounting base 24 facilitates mounting and securing the device.

The working principle and the using flow of the invention are as follows: when the device is used, the electric heating wire 503 is electrified to generate heat to prevent liquid in the valve body 1 from solidifying at low temperature, the valve is blocked, normal operation of the device is ensured, the valve core 5 and internal components of the valve seat 4 are prevented from being damaged easily due to repeated opening and closing under the blocking state of the valve seat 4, heat transfer can be accelerated through the heat conducting plate 402, the surfaces of the upper arc-shaped table 502 and the lower arc-shaped table 505 are smooth and convenient to clean, the control valve 21 controls the air inlet pipe 20 to enter air, pressure in the air cylinder 22 is regulated, the upper connecting rod 14 drives the valve rod 6 to ascend, at the moment, the contact area between the upper arc-shaped table 502 and the liquid is large, the force can be dispersed, the valve rod 6 is favorably ascended, the regulating spring 16 can further regulate the ascending or descending speed of the valve rod 6, the magnetic attraction block 506 slides back into the clamping seat 501 after the electromagnet 404 is controlled to be in a power-off, the movement of the valve core 5 is not influenced, the valve core 5 ascends through the valve rod 6, the valve core 5 is separated from the valve seat 4, the device is enabled to be conducted, when the air pressure in the regulating seat 13 is higher, the sliding table 1502 slides in the pipe 1501, the sealing gasket 1503 moves the sealing gasket 1505 and the sealing gasket 1505, the sealing gasket is separated, the sealing gasket 1505 and the sealing gasket is separated, the sealing gasket is separated in the sealing seat 5 and the sealing gasket, and the sealing gasket and the sealing seat 5 and the sealing 13 in the air 13 and the air in the air 13.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Pneumatic stop valve, including valve body (1), its characterized in that: one end fixedly connected with discharging pipe (2) of valve body (1), the other end of valve body (1) is provided with inlet pipe (3), the outer wall of inlet pipe (3) and the outer wall fixed connection of valve body (1), the inner wall fixed mounting of valve body (1) has disk seat (4), the inner wall swing joint of disk seat (4) has case (5), the inside of disk seat (4) includes separation platform (401), the outer wall of separation platform (401) and the inner wall fixed connection of valve body (1), the inner wall fixed mounting of separation platform (401) has heat-conducting plate (402), the inner wall fixed mounting of separation platform (401) has sealing washer one (403), the outer wall fixed mounting of separation platform (401) has electro-magnet (404), the inside of case (5) includes chucking seat (501), the outer wall of chucking seat (501) and the inner wall swing joint of disk seat (4), the one end fixed mounting of chucking seat (501) has upper arc platform (502), the outer wall fixed mounting of upper arc platform (504) has electric heater wire (503), the fixed mounting of upper arc platform (501) has the fixed mounting of chucking seat (501) under the arc platform (505), the inside of the adjusting cylinder is provided with a magnetic suction block (506), the outer wall of the magnetic suction block (506) is movably connected with the inner wall of the adjusting cylinder, a sealing ring II (507) is fixedly arranged on the outer wall of a clamping seat (501), a valve rod (6) is arranged at the top of the valve core (5), the bottom of the valve rod (6) is fixedly connected with the top of the valve core (5), a lower connecting table (7) is movably connected with the outer wall of the valve rod (6), a clamping block (8) is fixedly arranged on the outer wall of the lower connecting table (7), a screw rod (9) is connected with the inner wall of the clamping block (8), a limiting block (11) is connected with one end outer wall of the screw rod (9) in a threaded manner, an upper connecting table (12) is fixedly arranged on the outer wall of the limiting block (11), the bottom of the upper connecting table (12) is fixedly connected with the top of the lower connecting table (7), a limiting table is fixedly arranged on the inner wall of the upper connecting table (12), a connecting rod (13) is fixedly connected with the top of the adjusting seat (14), a connecting rod (13) is fixedly connected with the upper connecting seat (14), the inside of pressure regulating pipe (15) includes body (1501), the spout has been seted up to the inner wall of body (1501), the inner wall sliding connection of spout has sliding table (1502), the outer wall of sliding table (1502) is provided with fixed column (1503), the one end of fixed column (1503) and the outer wall fixed connection of sliding table (1502), the other end fixed mounting of fixed column (1503) has sealed pad (1504), the one end that fixed column (1503) was kept away from to sealed pad (1504) is provided with sealed lid (1505), the outer wall of sealed lid (1505) and the outer wall fixed connection of fixed column (1503).

2. The pneumatic shut-off valve of claim 1, wherein: the outer wall of last connecting rod (14) is provided with adjusting spring (16), the inner wall of adjusting spring (16) and the outer wall swing joint of last connecting rod (14), the top fixed mounting of adjusting seat (13) has connecting seat (17), the inner wall of connecting seat (17) and the outer wall swing joint of last connecting rod (14), the top fixed mounting of connecting seat (17) has fixed station (18).

3. The pneumatic shut-off valve of claim 2, wherein: the utility model discloses a fixed station, including fixed station (18), fixed station, adjusting knob, limiting ring, air inlet pipe, control valve, cylinder (22) are provided with in the inner wall fixed mounting of fixed station (18), limiting ring (19) have inner wall fixed mounting of limiting ring (19), one end fixed mounting that fixed station (18) was kept away from to air inlet pipe (20) has control valve (21), the top of fixed station (18) is provided with one end and the top fixed connection of fixed station (18) of cylinder (22), the other end fixed mounting of cylinder (22) has adjusting knob (23).

4. A pneumatic shut-off valve as in claim 3 wherein: the bottom of valve body (1) is provided with installation base (24), the top of installation base (24) and the bottom fixed connection of valve body (1).