CN219549744U

CN219549744U - Quick-dismantling angle type manual pneumatic program control valve

Info

Publication number: CN219549744U
Application number: CN202320467961.8U
Authority: CN
Inventors: 金春; 谢海勇; 余方; 杨燕英
Original assignee: Zhejiang Zhongfu Fluid Machinery Co ltd
Current assignee: Zhejiang Zhongfu Fluid Machinery Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-08-18
Anticipated expiration: 2033-03-13

Abstract

The utility model relates to the technical field of control valves, in particular to a quick-dismantling type angle type manual pneumatic program control valve which comprises a valve body, wherein a valve seat is arranged below the inner part of the valve body, a lower cavity is arranged on the inner side of the bottom of the valve body, a guide sleeve is arranged on the upper part of the valve seat, a middle cavity is arranged below the inner part of the guide sleeve, an upper cavity is arranged above the inner part of the guide sleeve, a valve rod is vertically arranged in the upper cavity, a valve core is arranged between the middle cavity and the upper cavity, the bottom end of the valve rod is connected with the valve core, a valve cover is arranged on the outer side of the top of the valve rod, and the top of the valve rod extends out of the valve cover and is provided with a cylinder. In the quick-dismantling type angle type manual pneumatic program control valve, all parts of the valve seat are connected or welded without fasteners, the guide sleeve can be quickly dismantled and assembled, positioned through the outer wall and the inner wall of the valve body, and pressed through the valve cover to act on the valve seat to fasten the valve seat. The tightness among all the components is good, gas leakage can not be caused, the manual wheel is provided with a clutch, and the valve opening and the valve closing can both realize manual operation, so that the manual operation is convenient to use.

Description

Quick-dismantling angle type manual pneumatic program control valve

Technical Field

The utility model relates to the technical field of control valves, in particular to a quick-dismantling type angle type manual pneumatic program control valve.

Background

The program-controlled valve is a shut-off valve driven by pneumatic, hydraulic or other modes. The valve is connected with a DCS distributed control system or a PLC to realize remote control of a computer program. The method is widely applied to pressure swing adsorption gas separation industries such as hydrogen production by methanol pyrolysis, alcohol drying, chloroethylene concentration and recovery, polysilicon tail gas recovery, nitrogen production, oxygen production, carbon dioxide recovery and the like. The program-controlled valve is a key device of the pressure swing adsorption device and is an important component for ensuring that each working procedure of the pressure swing adsorption is successfully completed and the system is reliably operated.

The patent with publication number CN110285251A discloses a pneumatic structure of a program-controlled valve, which comprises a crank box and a cylinder, wherein the crank box and the cylinder are connected with the cylinder top through a cylinder pull rod, a cylinder sleeve is arranged in the cylinder, and the cylinder sleeve is fixed by a bolt; the upper end of the rocker arm is connected with the connecting plate through a shaft to form a connecting rod structure, the connecting rod structure is fixed by a cotter pin, and the upper end of the connecting plate is connected with the joint shaft through a hinge shaft; the upper end of the connecting rod structure penetrates through the cylinder opening of the cylinder to be connected with the piston, the cylinder opening is provided with a steel opening copper sleeve, the steel opening copper sleeve is sealed through an O-shaped sealing ring, a V-shaped sealing ring and an O-shaped sealing ring, an elastic check ring for a shaft is arranged between the cylinder opening and the connecting rod structure, a support plate A and a support plate B are respectively arranged on two sides of the cylinder, a pressure oil filling cup is arranged on one side of the cylinder opening, a connecting rod mechanism is utilized, steam is pushed to conduct linear motion to be converted into rotary motion of a driving shaft, and then the rotary motion of the driving shaft is converted into circular motion of a butterfly valve to open and close a valve.

Although the technical scheme can convert the steam pushing piston into the linear motion into the rotary motion of the driving shaft and then into the circular motion of the butterfly valve to open and close the valve, the disassembly and assembly of each part are complex, the quick assembly and the quick disassembly are inconvenient, the tightness between the parts is also insufficient, and in addition, the manual control cannot be performed.

Disclosure of Invention

The utility model aims to provide a quick-dismantling type angle type manual pneumatic program control valve, which solves the problems that the disassembly and assembly of parts in the prior art are complex, the quick disassembly and assembly are inconvenient, the tightness between the parts is insufficient, and in addition, the manual control cannot be performed.

In order to achieve the above purpose, the utility model provides a quick-dismantling type angle type manual pneumatic program control valve, which comprises a valve body, wherein a valve seat is arranged below the inner part of the valve body, a lower cavity is arranged on the inner side of the bottom of the valve body, a guide sleeve is arranged on the upper part of the valve seat, a middle cavity is arranged below the inner part of the guide sleeve, an upper cavity is arranged above the inner part of the guide sleeve, a valve rod is vertically arranged in the upper cavity, a valve core is arranged between the middle cavity and the upper cavity, the bottom end of the valve rod is connected with the valve core, a valve cover is arranged on the outer side of the top of the valve rod, a cylinder is arranged on the top of the valve rod, a vent cavity is arranged between the top of the valve cover and the bottom of the cylinder, and the outer side of the vent cavity is communicated with the outside through a vent hole.

Preferably, a metal combined gasket is arranged between the outer side of the valve seat and the inner wall of the valve body.

Preferably, a sealing element is arranged between the bottom of the guide sleeve and the top of the valve seat.

Preferably, the top of the valve core is provided with a pilot hole, and a sealing ring and a guide ring are arranged between the outer wall of the valve core and the inner wall of the guide sleeve.

Preferably, the top end of the valve rod is connected with a manual shaft, a manual wheel is installed at the top end of the manual shaft, and a clutch is installed at the top of the manual wheel.

Preferably, the bottom end of the manual shaft is connected with the top end of the valve rod through a T-shaped groove connector.

Preferably, a valve rod guide sleeve is arranged on the outer side of the valve rod close to the valve cover.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the quick-dismantling type angle type manual pneumatic program control valve, all parts of the valve seat are connected or welded without fasteners, the guide sleeve can be quickly dismantled and assembled, positioned through the outer wall and the inner wall of the valve body, and pressed through the valve cover to act on the valve seat to fasten the valve seat.

2. In the quick-dismantling type angle-type manual pneumatic program control valve, the tightness among all the parts is good, gas leakage cannot be caused, a clutch is arranged on a manual wheel, and both the valve opening and the valve closing can realize manual operation, so that the quick-dismantling type angle-type manual program control valve is convenient to use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged partial schematic view of the present utility model at A in FIG. 1;

fig. 3 is an enlarged partial schematic view of the present utility model at B in fig. 1.

The meaning of each reference sign in the figure is:

1. a valve body; 11. a lower cavity; 12. a middle cavity; 13. an upper chamber; 2. a valve seat; 21. a seal; 22. a metal composite gasket; 3. a valve stem; 4. a guide sleeve; 41. a seal ring; 42. a guide ring; 43. a valve core; 431. a pilot hole; 5. a valve cover; 51. a valve rod guide sleeve; 52. an exhaust chamber; 53. an exhaust hole; 6. a cylinder; 7. a manual shaft; 71. t-shaped groove connectors; 8. a manual wheel; 9. a clutch.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a quick-dismantling type angle type manual pneumatic program control valve, as shown in figures 1-3, which comprises a valve body 1, wherein a valve seat 2 is arranged below the inner part of the valve body 1, the valve seat 2 is connected or welded without a fastener, the quick-dismantling type pneumatic program control valve can be quickly dismantled, a lower cavity 11 is arranged at the inner side of the bottom of the valve body 1, a guide sleeve 4 is arranged at the upper part of the valve seat 2, a middle cavity 12 is arranged below the inner part of the guide sleeve 4, an upper cavity 13 is arranged above the inner part of the guide sleeve 4, the inner wall of the guide sleeve 4 is hardened and honed, the wear resistance and self lubrication function are realized, a medium circulation window is formed at the lower part of the guide sleeve 4, the area of the window is the same as the diameter of the valve, and the circulation capacity is ensured;

the valve rod 3 is vertically installed in the upper cavity 13, the valve core 43 is arranged between the middle cavity 12 and the upper cavity 13, the bottom end of the valve rod 3 is connected with the valve core 43, the valve cover 5 is installed on the outer side of the top of the valve rod 3, the guide sleeve 4 is positioned with the inner wall of the valve body 1 through the outer wall, the valve seat 2 is tightly pressed by the valve cover 5, the fastening function on the valve seat 2 is achieved, the upper inner wall of the guide sleeve 4 plays a guiding role on the valve core 43, the lower window plays a steady flow guiding role on media, the top of the valve rod 3 extends out of the valve cover 5 and is provided with the air cylinder 6, the exhaust cavity 52 is arranged between the top of the valve cover 5 and the bottom of the air cylinder 6, the outer side of the exhaust cavity 52 is communicated with the outside through the exhaust hole 53, the upper end of the valve cover 5 is provided with a combined stuffing box, the air is communicated with the outside through the exhaust hole 53, the stuffing box and the air cylinder 6 are prevented from being mutually air-filled when being damaged in a sealing mode, the valve rod 3 and the air cylinder 6 are designed in an integrated mode, the concentricity is reduced, the split connection deviation influences the concentricity, the service life is prolonged, and the service life is convenient to be maintained.

In this embodiment, a metal combined gasket 22 is provided between the outside of the valve seat 2 and the inner wall of the valve body 1.

Specifically, a sealing element 21 is arranged between the bottom of the guide sleeve 4 and the top of the valve seat 2, the sealing element 21 is made of reinforced polymer materials, a sealing pair is formed between the sealing element 21 and the valve core 43, so that 0 leakage is achieved, the lower opening of the valve seat 2 is matched with the inner wall of the valve body 1, the positioning function is achieved, the sealing element is supported by a metal combined gasket 22, the supporting of the sealing element 21 is further enhanced, and the service life of the sealing pair is prolonged.

Further, a pilot hole 431 is formed in the top of the valve core 43, a sealing ring 41 and a guide ring 42 are installed between the outer wall of the valve core 43 and the inner wall of the guide sleeve 4, the valve core 43 is of an inverted cylindrical structure, the pilot hole 431 plays a role in balancing pressure of a diversion medium, and erosion of the medium to the valve core is reduced; the outer circle of the upper part is provided with a sealing ring 41 and a guide ring 42, the lower part is a sealing surface, and the sealing ring 41 and the valve core 43 are movably installed after hardening treatment, so that the valve seat is more durable and forms auxiliary sealing with the valve seat 2, and later repair is more convenient.

Further, the top of the valve rod 3 is connected with a manual shaft 7, a manual wheel 8 is installed at the top of the manual shaft 7, and a clutch 9 is installed at the top of the manual wheel 8.

Further, the bottom of the manual shaft 7 is connected with the top end of the valve rod 3 through a T-shaped groove connector 71, the valve rod 3 and the manual shaft 7 of the manual wheel 8 are movably connected in the cylinder 6 through T-shaped grooves, the influence of the external manual wheel 8 on the concentricity of the valve rod 3 is eliminated, the clutch 9 is arranged on the manual wheel 8, and both the valve opening and the valve closing can realize manual operation.

Further, a valve rod guide sleeve 51 is installed on the outer side of the valve rod 3 close to the valve cover 5, and the valve rod guide sleeve 51 is used for enhancing concentric operation of the valve rod 3 and the valve core 43, protecting the valve rod 3 and prolonging service life of the valve rod 3.

When the quick-dismantling type angle-type manual pneumatic program control valve is used, firstly, when the valve needs to be closed, the pressure of the upper cavity 13 and the lower cavity 11 is balanced through the balance of the pilot hole 431 of the valve core 43; after closing, the acting force area of the upper cavity 13 is larger than that of the middle cavity 12, and the driving force only needs to overcome the resistance between the packing and the valve rod 3, the valve core 43 and the guide sleeve 4;

when the valve is opened, only the pressure difference between the upper cavity 13 and the middle cavity 12 and the resistance between the packing and the valve rod 3 and the resistance between the valve 43 core and the guide sleeve 4 need to be overcome; after opening, the driving force only needs to overcome the resistance between the packing and the valve rod 3, the valve core 43 and the guide sleeve 4, and after closing, the medium can reach 0 leakage when the medium is low in and high out or high in and low out.

Finally, it should be noted that, in the embodiment, the cylinder 6 and the like, the electronic components in the above components are all universal standard components or components known to those skilled in the art, the structure and principle thereof are all known to those skilled in the art through technical manuals or known through routine experiment methods, at the idle position of the device, all the above electrical components are connected through wires, and specific connection means should refer to the sequential working order among the electrical components in the working principle to complete the electrical connection, which is known in the art.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a quick detach formula angle area manual pneumatic program control valve, includes valve body (1), its characterized in that: valve disk seat (2) are installed to the inside below of valve body (1), the bottom inboard of valve body (1) is provided with lower chamber (11), uide bushing (4) are installed on the upper portion of valve disk seat (2), the inside below of uide bushing (4) is provided with well chamber (12), the inside top of uide bushing (4) is provided with cavity (13), vertically install valve rod (3) in cavity (13), be provided with case (43) between well chamber (12) and upper chamber (13), the bottom and the case (43) of valve rod (3) are connected, valve gap (5) are installed in the top outside of valve rod (3), the top of valve rod (3) stretches out from valve gap (5) and installs cylinder (6), be provided with between the bottom of top and cylinder (6) of valve gap (5) and exhaust chamber (52), the outside of exhaust chamber (52) is through exhaust hole (53) and external intercommunication.

2. The quick release angle belt manual pneumatic programming valve of claim 1, wherein: a metal combined gasket (22) is arranged between the outer side of the valve seat (2) and the inner wall of the valve body (1).

3. The quick release angle belt manual pneumatic programming valve of claim 1, wherein: a sealing piece (21) is arranged between the bottom of the guide sleeve (4) and the top of the valve seat (2).

4. The quick release angle belt manual pneumatic programming valve of claim 1, wherein: the top of case (43) is provided with pilot hole (431), install sealing washer (41) and guide ring (42) between the outer wall of case (43) and the inner wall of uide bushing (4).

5. The quick release angle belt manual pneumatic programming valve of claim 1, wherein: the top of valve rod (3) is connected with manual axle (7), manual wheel (8) are installed on the top of manual axle (7), clutch (9) are installed at the top of manual wheel (8).

6. The quick release angle belt manual pneumatic programming valve of claim 5, wherein: the bottom of the manual shaft (7) is connected with the top of the valve rod (3) through a T-shaped groove connector (71).

7. The quick release angle belt manual pneumatic programming valve of claim 1, wherein: a valve rod guide sleeve (51) is arranged on the outer side of the valve rod (3) close to the valve cover (5).