CN211175421U

CN211175421U - Soft seal pneumatic butterfly valve

Info

Publication number: CN211175421U
Application number: CN201921393882.7U
Authority: CN
Inventors: 仝进召
Original assignee: Tianjin Yinuo Valve Industry Co ltd
Current assignee: Tianjin Yinuo Valve Industry Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-08-04
Anticipated expiration: 2029-08-26

Abstract

The utility model relates to a butterfly valve field specifically discloses a soft seal pneumatic butterfly valve, including pneumatic butterfly valve, the inboard of valve body is provided with seal ring down, seal ring and install the valve plate down between the valve body, pneumatic butterfly valve's upper end is provided with the air supply and connects, and pneumatic butterfly valve's inboard is connected with electromagnetic flowmeter, there is electromagnetic sensing to the internally mounted of clamp splice. Thereby the extrusion piece can make valve plate and seal ring keep zonulae occludens all the time through connecting rod extrusion seal ring after seal ring produces wearing and tearing, the good sealing performance and the life of pneumatic butterfly valve have been guaranteed, electromagnetic flowmeter and electromagnetic transducer have constituted a simple and easy flow valve, can be through detecting the inside fluidic flow of pneumatic butterfly valve, the material of first sealing layer and second sealing layer is different, the hardness of two kinds of materials is different, seal ring's sealing performance under different fluid and temperature has been promoted.

Description

Soft seal pneumatic butterfly valve

Technical Field

The utility model relates to a butterfly valve field specifically is a soft sealing pneumatic butterfly valve.

Background

The butterfly plate in the pneumatic soft seal butterfly valve is arranged in the pipeline to realize the on-off and flow control of the pipeline system, and is widely applied to various fields such as petroleum, chemical engineering, metallurgy, water and electricity. The sealing washer is made of rubber, polytetrafluoroethylene and the like, and the sealing of the pneumatic soft sealing butterfly valve has better sealing performance than a hard seal, but cannot be used for sealing high-temperature and high-pressure liquid.

However, the valve plate made of stainless steel can cause abrasion to the sealing washer made of the EPDM ethylene propylene diene monomer foaming material in the opening and closing process, the inner diameter of the sealing washer can be enlarged under the long-time rotation, and therefore the sealing performance of the pneumatic butterfly valve is reduced, and the traditional sealing washer is of an integral structure, so that the sealing performance is not good enough. Accordingly, those skilled in the art have provided a soft seal pneumatic butterfly valve to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft sealed pneumatic butterfly valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a soft sealed pneumatic butterfly valve, includes pneumatic butterfly valve, pneumatic butterfly valve's lower extreme is provided with the mount pad, the lower single valve body that is provided with down of mount pad, be provided with the valve body down between valve body and the mount pad, go up the lower extreme of valve body and install the boss, the inboard of valve body is provided with seal ring down, seal ring and install the valve plate down between the valve body, the both ends of valve plate are all installed and are being pressed from both sides the piece, the front end of valve body is provided with the installation screw down, the side of mount pad is provided with turning handle, pneumatic butterfly valve's upper end is provided with the air supply and connects, and pneumatic butterfly valve's inboard is connected with electromagnetic flowmeter, electromagnetic flowmeter's front end is provided with the display screen, one side of display screen is provided with control button, there is.

As a further aspect of the present invention: the outer side of the sealing washer is provided with a first sealing layer, the inner side of the first sealing layer is provided with a second sealing layer, an extrusion sheet is arranged between the lower valve body and the sealing washer, and the upper end of the extrusion sheet is provided with a connecting rod.

As a further aspect of the present invention: the electromagnetic flowmeter is connected with an external power supply, the electromagnetic sensor is electrically connected with the electromagnetic flowmeter, and the display screen is electrically connected with the control button.

As a further aspect of the present invention: the extrusion piece is elastically connected with the connecting rod, the first sealing layer is made of fluororubber, the second sealing layer is made of EPDM ethylene propylene diene monomer foaming materials, the extrusion piece is made of stainless steel, and the connecting rod is made of stamping spring steel.

As a further aspect of the present invention: the valve plate is rotatably connected with the sealing washer through a rotating shaft, and the outer diameter length of the valve plate is slightly smaller than the inner diameter length of the sealing washer.

As a further aspect of the present invention: the upper valve body, the reinforcing block and the lower valve body are stainless steel components, the mounting screw hole is in through connection with the lower valve body, the electromagnetic flowmeter is connected with the mounting seat through a bolt, and the rotating handle is rotatably connected with the mounting seat.

As a further aspect of the present invention: and a mounting groove is formed at the joint of the lower valve body and the connecting rod.

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

1. preferred extrusion piece and connecting rod, the valve plate of stainless steel can lead to the fact wearing and tearing to the second sealing layer of EPDM EPT foaming material component at the in-process that opens and shuts, long-time rotation can make the internal diameter of second sealing layer enlarge down to the sealing performance of the pneumatic butterfly valve who makes reduces, thereby the extrusion piece can make valve plate and seal ring keep zonulae occludens all the time through connecting rod extrusion first sealing layer after seal ring produces wearing and tearing, the good sealing performance and the life of pneumatic butterfly valve have been guaranteed.

2. The first sealing layer and the second sealing layer are made of different materials, and the hardness of the two materials is different, so that the sealing performance of the sealing washer under different fluids and temperatures is improved.

Drawings

FIG. 1 is a schematic structural diagram of a soft seal pneumatic butterfly valve;

FIG. 2 is a schematic structural view of a lower valve body of a soft seal pneumatic butterfly valve;

fig. 3 is a schematic cross-sectional view of a lower valve body in a soft seal pneumatic butterfly valve.

In the figure: 1. a pneumatic butterfly valve; 2. rotating the handle; 3. an upper valve body; 4. an electromagnetic flow meter; 5. a reinforcing block; 6. aligning the clamping blocks; 7. a lower valve body; 8. mounting a screw hole; 9. a gas source connector; 10. a valve plate; 11. a sealing gasket; 12. a mounting seat; 401. a display screen; 402. a control button; 701. extruding the sheet; 702. a connecting rod; 1101. a first sealing layer; 1102. a second sealing layer; 601. an electromagnetic sensor.

Detailed Description

Referring to fig. 1 to 3, in an embodiment of the present invention, a soft seal pneumatic butterfly valve includes a pneumatic butterfly valve 1, a mounting seat 12 is disposed at a lower end of the pneumatic butterfly valve 1, a lower valve body 7 is disposed below the mounting seat 12, an upper valve body 3 is disposed between the lower valve body 7 and the mounting seat 12, a reinforcing block 5 is mounted at a lower end of the upper valve body 3, a sealing washer 11 is disposed inside the lower valve body 7, a valve plate 10 is mounted between the sealing washer 11 and the lower valve body 7, a pair of clamping blocks 6 are mounted at both ends of the valve plate 10, a mounting screw hole 8 is disposed at a front end of the lower valve body 7, a rotating handle 2 is disposed at a side end of the mounting seat 12, an air source connector 9 is disposed at an upper end of the pneumatic butterfly valve 1, an electromagnetic flowmeter 4 (model: FD-M) is connected to an inside of the pneumatic butterfly valve 1, a display screen 401, an electromagnetic sensor 601 (model: VMI0720K7) is arranged in the clamping block 6.

The outer side of the sealing washer 11 is provided with a first sealing layer 1101, the inner side of the first sealing layer 1101 is provided with a second sealing layer 1102, an extrusion sheet 701 is arranged between the lower valve body 7 and the sealing washer 11, the upper end of the extrusion sheet 701 is provided with a connecting rod 702, the electromagnetic flowmeter 4 is externally connected with a power supply, the electromagnetic sensor 601 is electrically connected with the electromagnetic flowmeter 4, the display screen 401 is electrically connected with the control button 402, the extrusion sheet 701 is elastically connected with the connecting rod 702, the first sealing layer 1101 is a fluorine rubber material component, the second sealing layer 1102 is an EPDM ethylene propylene diene monomer foaming material component, the extrusion sheet 701 is a stainless steel material component, and the connecting rod 702 is a stamping spring.

The valve plate 10 is rotatably connected with the sealing washer 11 through a rotating shaft, the outer diameter length of the valve plate 10 is slightly smaller than the inner diameter length of the sealing washer 11, the upper valve body 3, the reinforcing block 5 and the lower valve body 7 are stainless steel components, the mounting screw hole 8 is in through connection with the lower valve body 7, the electromagnetic flowmeter 4 is connected with the mounting seat 12 through a bolt, the rotating handle 2 is rotatably connected with the mounting seat 12, and a mounting groove is formed in the joint of the lower valve body 7 and the connecting rod 702.

In fig. 2: the extrusion sheet 701 and the connecting rod 702 can be connected in a telescopic manner, the valve plate 10 made of stainless steel can cause abrasion to the second sealing layer 1102 of the EPDM ethylene propylene diene monomer foaming component in the opening and closing process, the inner diameter of the sealing washer 11 can be enlarged under the long-time rotation, so that the sealing performance of the pneumatic butterfly valve 1 is reduced, the extrusion sheet 701 can extrude the sealing washer 11 through the connecting rod 702 after the sealing washer 11 is abraded, the valve plate 10 and the sealing washer 11 can be always kept in tight connection, and the excellent sealing performance and the service life of the pneumatic butterfly valve 1 are guaranteed.

In fig. 1, 3: the flow of the fluid inside the pneumatic butterfly valve 1 can be detected, the first sealing layer 1101 and the second sealing layer 1102 are made of different materials, and the hardness of the two materials is different, so that the sealing performance of the sealing gasket 11 under different fluids and temperatures is improved.

The utility model discloses a theory of operation is: the pneumatic butterfly valve 1 can be connected with a pipeline through the mounting screw hole 8 on the lower valve body 7, the air source connector 9 can be externally connected with an air source to control the rotation of the valve plate 10, the opening and closing of the valve plate 10 can also be controlled by the rotating handle 2, the flow rate of the fluid in the pneumatic butterfly valve 1 can be detected, the flow rate can be displayed on the display screen 401, the first sealing layer 1101 and the second sealing layer 1102 are made of different materials, and the hardness of the two materials is different, so that the sealing performance of the sealing gasket 11 under different fluids and temperatures is improved, when the valve plate 10 and the second sealing layer 1102 inside the EPDM foamed sealing gasket 11 are worn by rotation, the first sealing layer 1101 can be pressed by the connecting rod 702, so that the valve plate 10 and the sealing washer 11 can be always tightly connected, and the excellent sealing performance and the service life of the pneumatic butterfly valve 1 are ensured.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A soft sealing pneumatic butterfly valve comprises a pneumatic butterfly valve (1) and is characterized in that a mounting seat (12) is arranged at the lower end of the pneumatic butterfly valve (1), a lower valve body (7) is arranged under the mounting seat (12), an upper valve body (3) is arranged between the lower valve body (7) and the mounting seat (12), a reinforcing block (5) is installed at the lower end of the upper valve body (3), a sealing gasket (11) is arranged on the inner side of the lower valve body (7), a valve plate (10) is installed between the sealing gasket (11) and the lower valve body (7), opposite clamping blocks (6) are installed at two ends of the valve plate (10), an installation screw hole (8) is formed in the front end of the lower valve body (7), a rotating handle (2) is arranged at the side end of the mounting seat (12), an air source connector (9) is arranged at the upper end of the pneumatic butterfly valve (1), and an electromagnetic flowmeter (4) is connected with the inner side, the front end of the electromagnetic flowmeter (4) is provided with a display screen (401), one side of the display screen (401) is provided with a control button (402), and an electromagnetic sensor (601) is arranged inside the clamping block (6).

2. The soft seal pneumatic butterfly valve according to claim 1, wherein a first sealing layer (1101) is arranged on the outer side of the sealing washer (11), a second sealing layer (1102) is arranged on the inner side of the first sealing layer (1101), a pressing sheet (701) is arranged between the lower valve body (7) and the sealing washer (11), and a connecting rod (702) is installed at the upper end of the pressing sheet (701).

3. The soft seal pneumatic butterfly valve according to claim 1, wherein the electromagnetic flow meter (4) is externally connected with a power supply, the electromagnetic sensor (601) is electrically connected with the electromagnetic flow meter (4), and the display screen (401) is electrically connected with the control button (402).

4. The soft seal pneumatic butterfly valve of claim 2, wherein the extruded piece (701) is elastically connected to the connecting rod (702), the first sealing layer (1101) is made of a fluororubber material, the second sealing layer (1102) is made of EPDM, the extruded piece (701) is made of a stainless steel material, and the connecting rod (702) is made of a stamped spring steel material.

5. The soft seal pneumatic butterfly valve according to claim 1, wherein the valve plate (10) is rotatably connected to the sealing gasket (11) by a rotating shaft, and the length of the outer diameter of the valve plate (10) is slightly smaller than the length of the inner diameter of the sealing gasket (11).

6. The soft seal pneumatic butterfly valve according to claim 1, wherein the upper valve body (3), the reinforcing block (5) and the lower valve body (7) are stainless steel components, the mounting screw hole (8) is connected with the lower valve body (7) in a penetrating manner, the electromagnetic flow meter (4) is connected with the mounting seat (12) through a bolt, and the rotating handle (2) is rotatably connected with the mounting seat (12).

7. The soft seal pneumatic butterfly valve according to claim 2, wherein a mounting groove is provided at the junction of the lower valve body (7) and the connecting rod (702).