CN216200634U

CN216200634U - Multi-layer lining anti-corrosion butterfly valve

Info

Publication number: CN216200634U
Application number: CN202122639269.2U
Authority: CN
Inventors: 裴叶青; 庞慧高; 段淑清; 裴曼羽
Original assignee: Tianjin Ots Valve Manfacturing Co ltd
Current assignee: Tianjin Ots Valve Manfacturing Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-05
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a multilayer lining anti-corrosion butterfly valve, which carries out anti-corrosion protection on the inner wall of a valve body through an anti-corrosion lining, improves the sealing effect of closing through the matching of a first convex ring and a second convex ring with a first sealing groove and a second sealing groove when a rotating shaft is rotated to enable a butterfly plate to be in contact with a valve seat to close the butterfly valve, and can lock the rotating shaft through a screw sleeve, so that the rotating shaft and the butterfly plate are prevented from rotating due to the pressure of fluid, the stability of the butterfly valve is improved, the integral structure is simple, the operation is convenient, and the practicability is strong; the butterfly valve comprises a valve body, a valve seat, a rotating shaft and a butterfly plate, wherein the valve seat is fixedly arranged inside the valve body; the sealing device further comprises a first convex ring, a first sealing groove, a second convex ring, a second sealing groove, a sealing lining, an upper seat, a mechanical sealing ring, an anti-corrosion lining, a threaded sleeve and a clamping groove, wherein a clamping table is arranged in the middle of the valve seat, and the first convex ring is fixedly arranged in the middle of the clamping table.

Description

Multi-layer lining anti-corrosion butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a multilayer lining anti-corrosion butterfly valve.

Background

The multilayer lining anti-corrosion butterfly valve is an auxiliary device which is used for controlling the flow of gas or liquid in the industrial production and processing process so as to better carry out pipeline transmission, and is widely used in the technical field of butterfly valves; when the existing multilayer lining anti-corrosion butterfly valve is used, the butterfly valve is directly connected into a pipeline; however, the existing butterfly valve has general corrosion resistance and stability.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the multilayer lining anti-corrosion butterfly valve which is good in anti-corrosion performance and high in stability.

The utility model relates to a multilayer lining anti-corrosion butterfly valve which comprises a valve body, a valve seat, a rotating shaft and a butterfly plate, wherein the valve seat is fixedly arranged inside the valve body; the sealing device comprises a valve body, and is characterized by further comprising a first convex ring, a first sealing groove, a second convex ring, a second sealing groove, a sealing lining, an upper seat, a mechanical sealing ring, an anticorrosive lining, a threaded sleeve and a clamping groove, wherein a clamping table is arranged in the middle of the valve seat, the first convex ring is fixedly arranged in the middle of the clamping table, the first sealing groove is arranged at one end of the butterfly plate and corresponds to the first convex ring, the second convex ring is fixedly arranged in the middle of the clamping table, the second sealing groove is arranged at one end of the butterfly plate and corresponds to the second convex ring, the sealing lining is fixedly arranged at one end of the clamping table and covers the first convex ring and the second convex ring, the upper seat is fixedly arranged at the top of the valve body and is sleeved in the middle of the rotating shaft, the mechanical sealing ring is sleeved in the middle of the rotating shaft, the anticorrosive lining is fixedly arranged in the valve body, the upper portion of the rotating shaft is provided with external threads, the threaded sleeve is arranged at the upper portion of the rotating shaft, and the clamping groove is arranged at the top of the upper seat; when using multi-level inside lining anticorrosive butterfly valve, carry out anticorrosion protection to the valve body inner wall through anticorrosive inside lining, when rotating the pivot and making butterfly plate and disk seat contact close the butterfly valve, through first bulge loop, the sealed effect of closing is improved to the first seal groove of second bulge loop cooperation and second seal groove, and can lock the pivot through the swivel nut, thereby prevent that pivot and butterfly plate from rotating because of fluidic pressure, improve the stability of butterfly valve, overall structure is simple, the simple operation, the practicality is stronger.

Preferably, the device also comprises a fixing bolt, wherein one end of the fixing bolt is inserted into the upper seat from the middle part of the upper seat and is contacted with the rotating shaft; the locking of the shaft is enhanced by the above arrangement.

Preferably, the valve also comprises flanges, and the flanges are arranged at the left end and the right end of the valve body; the butterfly valve is convenient to install through the arrangement.

Preferably, the bottom of the threaded sleeve is provided with a conical sleeve; the locking effect of the thread insert is enhanced by the arrangement.

Preferably, the outer part of the butterfly plate is wrapped with the corrosion-resistant coating; the butterfly plate is protected through the arrangement.

Preferably, the sealing liner is a cushion.

Preferably, the corrosion-resistant lining is provided with a plurality of layers; the anti-corrosion effect is enhanced through the arrangement.

Compared with the prior art, the utility model has the beneficial effects that: when using multi-level inside lining anticorrosive butterfly valve, carry out anticorrosion protection to the valve body inner wall through anticorrosive inside lining, when rotating the pivot and making butterfly plate and disk seat contact close the butterfly valve, through first bulge loop, the sealed effect of closing is improved to the first seal groove of second bulge loop cooperation and second seal groove, and can lock the pivot through the swivel nut, thereby prevent that pivot and butterfly plate from rotating because of fluidic pressure, improve the stability of butterfly valve, overall structure is simple, the simple operation, the practicality is stronger.

Drawings

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

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic top cross-sectional structural view of the present invention;

FIG. 4 is a schematic structural diagram of the connection between the rotating shaft and the butterfly plate;

FIG. 5 is an enlarged schematic view of A in FIG. 3;

FIG. 6 is an enlarged schematic view of B of FIG. 2;

in the drawings, the reference numbers: 1. a valve body; 2. a valve seat; 3. a rotating shaft; 4. a butterfly plate; 5. a first convex ring; 6. a first seal groove; 7. a second convex ring; 8. a second seal groove; 9. sealing the inner liner; 10. an upper seat; 11. a mechanical seal ring; 12. an anticorrosive lining; 13. a threaded sleeve; 14. a card slot; 15. fixing the bolt; 16. and (4) a flange.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As shown in fig. 1 to 6, the multilayer lining anticorrosive butterfly valve comprises a valve body 1, a valve seat 2, a rotating shaft 3 and a butterfly plate 4, wherein the valve seat 2 is fixedly arranged inside the valve body 1, the rotating shaft 3 is rotatably arranged in the valve body 1, and the butterfly plate 4 is fixedly arranged in the middle of the rotating shaft 3; the valve further comprises a first convex ring 5, a first sealing groove 6, a second convex ring 7, a second sealing groove 8, a sealing lining 9, an upper seat 10, a mechanical sealing ring 11, an anticorrosion lining 12, a threaded sleeve 13 and a clamping groove 14, wherein a clamping table is arranged in the middle of the valve seat 2, the first convex ring 5 is fixedly arranged in the middle of the clamping table, the first sealing groove 6 is arranged at one end of the butterfly plate 4 and corresponds to the first convex ring 5, the second convex ring 7 is fixedly arranged in the middle of the clamping table, the second sealing groove 8 is arranged at one end of the butterfly plate 4 and corresponds to the second convex ring 7, the sealing lining 9 is fixedly arranged at one end of the clamping table and covers the outer parts of the first convex ring 5 and the second convex ring 7, the upper seat 10 is fixedly arranged at the top of the valve body 1 and covers the middle part of the rotating shaft 3, the mechanical sealing ring 11 covers the middle part of the rotating shaft 3, the lining 12 is fixedly arranged in the valve body 1, and the upper part of the rotating shaft 3 is provided with an external thread, the screw sleeve 13 is screwed on the upper part of the rotating shaft 3, the clamping groove 14 is arranged at the top of the upper seat 10, one end of the fixing bolt 15 is inserted into the upper seat 10 from the middle part of the upper seat 10 and is contacted with the rotating shaft 3, the flanges 16 are arranged at the left end and the right end of the valve body 1, the bottom of the screw sleeve 13 is provided with a conical sleeve, the outer part of the butterfly plate 4 is wrapped with a corrosion-resistant coating, the sealing lining 9 is a cushion, and the corrosion-resistant lining 12 is provided with multiple layers; when using multi-level inside lining anticorrosive butterfly valve, carry out anticorrosion protection through anticorrosive inside lining 12 to 1 inner wall of valve body, when rotating pivot 3 and making butterfly plate 4 and disk seat 2 contact closed butterfly valve, through first bulge loop 5, the sealed effect of closing is improved to the first seal groove 6 of second bulge loop 7 cooperation and second seal groove 8, and can lock pivot 3 through swivel nut 13 and fixing bolt, thereby prevent that pivot 3 and butterfly plate 4 from rotating because of fluidic pressure, improve the stability of butterfly valve, overall structure is simple, the operation is convenient, the practicality is stronger.

The multi-layer lining anti-corrosion butterfly valve has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, the specific structures, the models and the coefficient indexes of all parts are self-contained technologies, and the multi-layer lining anti-corrosion butterfly valve can be implemented as long as the beneficial effects are achieved; the flange 16 of the multilayer lining anti-corrosion butterfly valve is purchased from the market, and the technical personnel in the industry only need to install and operate according to the attached operating instructions without creative labor of the technical personnel in the field.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A multi-layer lining anti-corrosion butterfly valve comprises a valve body (1), a valve seat (2), a rotating shaft (3) and a butterfly plate (4), wherein the valve seat (2) is fixedly arranged inside the valve body (1), the rotating shaft (3) is rotatably arranged in the valve body (1), and the butterfly plate (4) is fixedly arranged in the middle of the rotating shaft (3); the sealing valve is characterized by further comprising a first convex ring (5), a first sealing groove (6), a second convex ring (7), a second sealing groove (8), a sealing lining (9), an upper seat (10), a mechanical sealing ring (11), an anticorrosive lining (12), a threaded sleeve (13) and a clamping groove (14), wherein a clamping table is arranged in the middle of the valve seat (2), the first convex ring (5) is fixedly arranged in the middle of the clamping table, the first sealing groove (6) is arranged at one end of the butterfly plate (4) and corresponds to the first convex ring (5), the second convex ring (7) is fixedly arranged in the middle of the clamping table, the second sealing groove (8) is arranged at one end of the butterfly plate (4) and corresponds to the second convex ring (7), the sealing lining (9) is fixedly arranged at one end of the clamping table and covers the outer portions of the first convex ring (5) and the second convex ring (7), the upper seat (10) is fixedly arranged at the top of the valve body (1) and covers the middle of the rotating shaft (3), the middle part of pivot (3) is located to mechanical seal ring (11) cover, and anticorrosive inside lining (12) are fixed to be set up in the inside of valve body (1), and the upper portion of pivot (3) is provided with the external screw thread, and swivel nut (13) spiral shell dress is on the upper portion of pivot (3), and draw-in groove (14) set up in the top of upper seat (10).

2. The corrosion-resistant butterfly valve with a multi-layer lining as claimed in claim 1, further comprising a fixing bolt (15), wherein one end of the fixing bolt (15) is inserted into the upper seat (10) from the middle of the upper seat (10) and contacts with the rotating shaft (3).

3. The corrosion-resistant butterfly valve with a multi-layer lining as claimed in claim 1, further comprising flanges (16), wherein the flanges (16) are arranged at the left end and the right end of the valve body (1).

4. The multilayer corrosion-resistant butterfly valve with the lining as claimed in claim 1, wherein the bottom of the thread sleeve (13) is provided with a conical sleeve.

5. The multilayer lining corrosion-resistant butterfly valve according to claim 1, characterized in that the exterior of the butterfly plate (4) is wrapped with a corrosion-resistant coating.

6. The multilayer inner lining corrosion-resistant butterfly valve according to claim 1, characterized in that a conical sleeve is provided, and the outer part of the butterfly plate (4) is wrapped with a corrosion-resistant coating and is a soft cushion.

7. The multilayer lining corrosion resistant butterfly valve of claim 1, wherein the corrosion resistant lining (12) is provided in multiple layers.