CN211288914U

CN211288914U - Two-way metal hard seal butterfly valve

Info

Publication number: CN211288914U
Application number: CN201921533335.4U
Authority: CN
Inventors: 王文光; 王誉燃
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-08-18
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a two-way metal butterfly valve sealed firmly, the water-cooled double-layer butterfly valve comprises a valve body, the flange board is all installed at the both ends of valve body, the top mid-mounting of valve body has the top cap, the seal cover is installed through well flange in the top of top cap, the gear box is installed on the top of seal cover, explosion-proof guardrail is installed to the both sides of valve body. The utility model discloses an explosion-proof guardrail is installed in the outside of valve body, can carry out explosion-proof protection to the valve body through explosion-proof guardrail, can improve the proof strength of valve body through it, make the valve body can be applied to comparatively dangerous place and use, and install the protection frame between well flange and gear box, can carry out better protection to drive mechanism through the protection frame, increase its life, and valve plate and valve body all set up to metallic structure, and install wear-resisting metal sealing washer in the outside of the junction of valve plate and valve body, can improve the life of valve body and valve plate through it.

Description

Two-way metal hard seal butterfly valve

Technical Field

The utility model relates to a butterfly valve field specifically is a two-way metal butterfly valve sealed firmly.

Background

The hard sealing butterfly valve is also called flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline medium. The hard sealing butterfly valve mainly plays a role in cutting off and throttling on a pipeline, and the butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. The hard seal butterfly valve is suitable for pipelines for conveying various corrosive and non-corrosive fluid media in producer furnaces, coal gas, steam, natural gas, urban coal gas, cold and hot air, chemical smelting engineering and power generation environment-friendly systems, is used for adjusting and cutting off the flow of the media, and can be divided into a manual hard seal butterfly valve, a pneumatic hard seal butterfly valve and an electric hard seal butterfly valve.

The butterfly valve in the current stage has various defects, such as poor universality, incapability of being used in different fields, danger in the use process particularly in the fields of gas and coal gas and poor explosion-proof measures.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way metal butterfly valve sealed firmly to the commonality of solving among the prior art is poor, can't use the field that is used for the difference, is comparatively dangerous to gas, coal gas field use very much, the poor problem of explosion-proof measure.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a two-way metal butterfly valve sealed firmly, includes the valve body, the flange board is all installed at the both ends of valve body, the top mid-mounting of valve body has the top cap, the seal cover is installed through well flange in the top of top cap, the protection frame is installed in the outside of seal cover, the gear box is installed on the top of seal cover, explosion-proof guardrail is installed to the both sides of valve body.

Preferably, a first transmission gear and a second transmission gear are installed inside the gear box, and the first transmission gear and the second transmission gear are mutually transmitted.

Preferably, a transmission rod is installed at one end of the first transmission gear, and an adjusting handle is installed at one end of the transmission rod.

Preferably, the second transmission gear is installed at one end of the valve rod, and the other end of the valve rod is fixedly connected with the valve plate through a bolt.

Preferably, the anti-explosion guardrail is installed on two sides of the valve body in a welding mode, and the protection frame is welded between the gear box and the middle flange.

Preferably, the valve plate and the valve body are both made of metal materials, and the valve plate is of a disc structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an explosion-proof guardrail is installed in the outside of valve body, can carry out explosion-proof protection to the valve body through explosion-proof guardrail, can improve the proof strength of valve body through it, make the valve body can be applied to comparatively dangerous place and use, and install the protection frame between well flange and gear box, can carry out better protection to drive mechanism through the protection frame, increase its life, and valve plate and valve body all set up to metallic structure, and install wear-resisting metal sealing washer in the outside of the junction of valve plate and valve body, can improve the life of valve body and valve plate through it.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the gear box of the present invention.

Fig. 3 is a top view of the valve body of the present invention.

In the figure: 1. a gear case; 2. adjusting the handle; 3. a wear-resistant metal seal ring; 4. a flange plate; 5. an explosion-proof guardrail; 6. a valve plate; 7. a valve body; 8. sealing sleeves; 9. a protective frame; 10. a middle flange; 11. a top cover; 12. a transmission rod; 13. a first drive gear; 14. a second transmission gear; 15. a valve stem.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a bidirectional metal hard seal butterfly valve includes a valve body 7, flange plates 4 are installed at both ends of the valve body 7, a top cover 11 is installed at the middle portion of the top end of the valve body 7, a seal sleeve 8 is installed at the top of the top cover 11 through a middle flange 10, the seal sleeve 8 is used for sealing the connection of a valve rod 15, a protection frame 9 is installed at the outer side of the seal sleeve 8, the protection frame 9 can strengthen the protection of the outer side of the seal sleeve 8, a gear box 1 is installed at the top end of the seal sleeve 8, the gear box 1 is used for driving a valve rod 15 to rotate through a first transmission gear 13 and a second transmission gear 14 inside the gear box 1, the valve rod 15 rotates to drive a valve plate 6 to open and close, a first transmission gear 13 and a second transmission gear 14 are installed inside the gear box 1, the first transmission gear 13 and, and the other end of valve rod 15 passes through bolt fixed connection with valve plate 6, valve plate 6 and valve body 7 all set up to the metal material, and valve plate 6 sets up to the disc structure, transfer line 12 is installed to the one end of first transfer gear 13, adjustment handle 2 is installed to the one end of transfer line 12, explosion-proof guardrail 5 is installed to the both sides of valve body 7, explosion-proof guardrail 5 can improve the explosion-proof performance in the outside of valve body 7, explosion-proof guardrail 5 passes through the welding mode and installs the both sides at valve body 7, and protection frame 9 welds between gear box 1 and well flange 10.

The utility model discloses a theory of operation is: when the device is used, the transmission rod 12 is driven to rotate through the adjusting handle 2, the transmission rod 12 is driven to mutually transmit with the second transmission gear 14 through the first transmission gear 13, the transmission rod is driven to rotate the valve rod 15, the opening and closing of the inner cavity of the valve body 7 are controlled through the rotation of the valve rod 15, the flange plates 4 at the two ends of the valve body 7 facilitate the installation of pipelines, the outer side of the valve body 7 can be subjected to explosion-proof protection through the explosion-proof guardrail 5, and the outer side of the sealing sleeve 8 can be subjected to explosion-proof protection through the protection frame 9.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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

1. The bidirectional metal hard seal butterfly valve comprises a valve plate (6) and a valve body (7), and is characterized in that flange plates (4) are mounted at two ends of the valve body (7), a top cover (11) is mounted in the middle of the top end of the valve body (7), a seal sleeve (8) is mounted at the top of the top cover (11) through a middle flange (10), a protection frame (9) is mounted on the outer side of the seal sleeve (8), a gear box (1) is mounted at the top end of the seal sleeve (8), and anti-explosion guardrails (5) are mounted on two sides of the valve body (7).

2. The bidirectional metal hard seal butterfly valve of claim 1, wherein: a first transmission gear (13) and a second transmission gear (14) are installed inside the gear box (1), and the first transmission gear (13) and the second transmission gear (14) are mutually transmitted.

3. A bi-directional metal hard seal butterfly valve as recited in claim 2, wherein: a transmission rod (12) is installed at one end of the first transmission gear (13), and an adjusting handle (2) is installed at one end of the transmission rod (12).

4. A bi-directional metal hard seal butterfly valve as recited in claim 2, wherein: the second transmission gear (14) is installed at one end of the valve rod (15), and the other end of the valve rod (15) is fixedly connected with the valve plate (6) through a bolt.

5. The bidirectional metal hard seal butterfly valve of claim 1, wherein: the anti-explosion guardrail (5) is installed on two sides of the valve body (7) in a welding mode, and the protection frame (9) is welded between the gear box (1) and the middle flange (10).

6. The bidirectional metal hard seal butterfly valve of claim 1, wherein: valve plate (6) and valve body (7) all set up to the metal material, and valve plate (6) set up to the disc structure.