CN213064649U

CN213064649U - Butterfly valve with corrosion resistance

Info

Publication number: CN213064649U
Application number: CN202021361331.5U
Authority: CN
Inventors: 董海涛
Original assignee: Liaoyang Tiexi Valve Co ltd
Current assignee: Liaoyang Tiexi Valve Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-27
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with corrosion resistance, which comprises a valve body, a manual rotating disc and a vertical column, wherein a valve plate is arranged in the valve body, a valve rod is fixed above the valve plate through splicing, the top of the valve rod is connected with an electric mechanism, the outer end of the electric mechanism is sleeved with a sleeve, the manual rotating disc is arranged at one side of the sleeve through movable connection, a cover plate is arranged right ahead the valve plate, and the outer end of the valve body is fixed with a flange plate. The service life of the butterfly plate can be effectively prolonged.

Description

Butterfly valve with corrosion resistance

Technical Field

The utility model relates to a butterfly valve technical field specifically is a corrosion resistance butterfly valve has.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, can be used for on-off control of low-pressure pipeline media, and is a valve, the closing part of which is a disk and rotates around a valve shaft to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

When the butterfly valve on the market is used for adjusting liquid, the butterfly plate stressed for a long time is very easy to break and damage due to impact force generated when the liquid flows, and when corrosive liquid flows, a pipeline which is not protected by corrosion resistance is very easy to damage, so that the butterfly valve with corrosion resistance is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a butterfly valve with corrosion resistance to solve the problem that proposes in the above-mentioned background art.

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

a corrosion-resistant butterfly valve comprises a valve body, a manual rotating disc and a vertical column, wherein a valve plate is arranged in the valve body, a valve rod is fixedly arranged above the valve plate through insertion, the top of the valve rod is connected with an electric mechanism, the outer end of the electric mechanism is sleeved with a sleeve, the manual rotating disc is arranged on one side of the sleeve through movable connection, a cover plate is arranged right in front of the valve plate, a flange plate is fixed at the outer end of the valve body, a positioning hole is arranged in the flange plate through one-time cutting processing, a sealing pad is fixed at the outer end of the valve plate, the vertical column is arranged at one end of the cover plate, and the outer end of the vertical column is sleeved with a fixed lantern ring, the bottom of the cover plate is welded with a spring, the inner wall of the valve body is provided with a first protective layer through integral molding, and the top of the first protective layer is covered with a second protective layer, and a third protective layer is tightly attached to the upper part of the second protective layer.

Preferably, a valve plate with a disc-shaped structure is arranged in the valve body, and the valve plate is connected with the tail end of the output end of the electric mechanism through a valve rod.

Preferably, the side of apron is the slope form and sets up in the top of spring, and the top fixed connection of welding and valve plate is passed through to the bottom of spring, the connection of spring and apron constitutes elastic construction, and the apron is through pegging graft and vertical post fixed connection, the bottom of vertical post and the top fixed connection of apron.

Preferably, the flange plate and the valve body are connected to form an integrated structure, and the flange plate is internally provided with positioning holes in a hollow array structure.

Preferably, the lower surface of the second protective layer and the upper surface of the first protective layer are attached to each other, and the second protective layer and the third protective layer are integrally formed.

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

1. in the utility model, the stressed cover plate is closed towards the arrangement direction of the spring under the positioning coordination of the vertical column along with the rapid flow of the liquid through the arranged cover plate, the vertical column and the spring, then the cover plate effectively buffers the impact force generated in the rapid flow process of the liquid by means of the generation of the reaction force of the spring, and the service life of the butterfly plate can be effectively prolonged by timely buffering in the starting process;

2. the utility model discloses in, through the valve body that sets up, first protective layer, second protective layer and third protective layer, the combination is epoxy-phenolic aldehyde lacquer respectively, the first protective layer of pitch lacquer and inorganic zinc-rich lacquer, second protective layer and third protective layer cover when the inner wall of valve body through integrated into one piece's setting, cover each other at three kinds of anticorrosive materials, under the state of mutual complementation for whole device has good anticorrosive effect, avoid the corruption that fluid such as partial strong acid alkali caused to the device inside effectively.

Drawings

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

FIG. 2 is a schematic view of the cover plate structure of the present invention;

fig. 3 is a schematic view of the first protective layer structure of the present invention.

In the figure: 1-valve body, 2-valve plate, 3-valve rod, 4-electric mechanism, 5-sleeve, 6-manual turntable, 7-cover plate, 8-flange, 9-positioning hole, 10-sealing gasket, 11-vertical column, 12-fixed lantern ring, 13-spring, 14-first protective layer, 15-second protective layer and 16-third protective layer.

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. 1-3, the present invention provides a technical solution:

a butterfly valve with corrosion resistance comprises a valve body 1, a manual rotating disc 6 and a vertical column 11, wherein a valve plate 2 is installed inside the valve body 1, a valve rod 3 is fixedly connected above the valve plate 2 in an inserting mode, the top of the valve rod 3 is connected with an electric mechanism 4, the outer end of the electric mechanism 4 is sleeved with a sleeve 5, the manual rotating disc 6 is arranged on one side of the sleeve 5 through movable connection, a cover plate 7 is installed right in front of the valve plate 2, a flange plate 8 is fixed at the outer end of the valve body 1, a positioning hole 9 is formed in the flange plate 8 through one-time cutting, a sealing gasket 10 is fixed at the outer end of the valve plate 2, the vertical column 11 is arranged at one end of the cover plate 7, a fixing sleeve ring 12 is sleeved at the outer end of the vertical column 11, a spring 13 is welded at the bottom of the cover plate 7, a first protective layer 14 is, and the top of the first protective layer 14 is covered with a second protective layer 15, and a third protective layer 16 is closely attached above the second protective layer 15.

The valve plate 2 with the appearance of a disc-shaped structure is arranged in the valve body 1, the valve plate 2 is connected with the tail end of the output end of the electric mechanism 4 through the valve rod 3, the mutual connection with a pipeline for flowing liquid is realized in advance along with the device in a flange connection mode, when the device is in a working state, the electric mechanism 4 fixed at the top of the valve body 1 is used as a driving component, the valve rod 3 is driven through the electric mechanism 4, the valve plate 2 serving as a butterfly plate structure generates 90-degree rotary motion after being stressed, the adjustment and control of different technological parameters of liquid flow are realized after the opening and closing of the valve are realized, and the working principle of the electric butterfly valve related to the structure is the prior art; the side edge of the cover plate 7 is arranged at the top of the spring 13 in an inclined manner, the bottom of the spring 13 is fixedly connected with the top of the valve plate 2 through welding, the spring 13 and the cover plate 7 are connected to form an elastic structure, the cover plate 7 is fixedly connected with the vertical column 11 through plugging, the bottom of the vertical column 11 is fixedly connected with the top of the cover plate 7, as the liquid flows rapidly, relative impact force can be brought to the valve plate 2, the cover plate 7 is arranged at the top of the valve plate 2 in combination with the cover plate 7, when the cover plate 7 is subjected to impact force from the liquid, under the positioning fit of the vertical column 11, the stressed cover plate 7 is drawn close to the arrangement direction of the spring 13, the spring 13 deforms, then under the state of mutual connection, the cover plate 7 effectively buffers the impact force generated in the process of rapid liquid flowing by means of the reaction force generated by the spring 13, and the structure enables the whole device to have a buffer structure, the service life of the butterfly plate can be effectively prolonged by timely buffering in the starting process, and the side edge of the valve plate 2 in an inclined structure can also play a certain role in guiding the flow of liquid; the flange 8 and the valve body 1 are connected to form an integrated structure, positioning holes 9 in a hollow array structure are formed in the flange 8, when the device is required to be connected with a pipeline, the flange 8 is used as a connecting member in the integrated structure, the flange members of the pipeline correspond to the flange 8 one by one, and after the flange members are fixed through screws, the pipeline is communicated with one another; laminating each other between the lower surface of second protective layer 15 and the upper surface of first protective layer 14, and integrated into one piece between second protective layer 15 and the third protective layer 16, combine first protective layer 14, second protective layer 15 and third protective layer 16 are stack body structure and set up, when being epoxy-phenolic aldehyde lacquer respectively, the first protective layer 14 of pitch lacquer and inorganic zinc-rich lacquer, second protective layer 15 and third protective layer 16 cover in the inner wall of valve body 1 through integrated into one piece's setting, cover each other at three kinds of anticorrosive material, under the state of mutual complementation, make whole device have good anticorrosive effect, the device is with the help of this multilayer anticorrosive structure, when avoiding the inside corruption that causes of fluid such as partial strong acid alkali to the device effectively, also ensure the integrality of whole device.

The working process is as follows: when the device is in a working state, the device takes an electric mechanism 4 fixed at the top of a valve body 1 as a driving component, drives a valve rod 3 through the electric mechanism 4, so that a valve plate 2 as a butterfly plate structure generates 90-degree rotary motion after being stressed, and realizes the adjustment and control of different process parameters of liquid flow after the valve is opened and closed, when the cover plate 7 is impacted by liquid, under the positioning fit of a vertical column 11, the stressed cover plate 7 is close to the arrangement direction of a spring 13, and the spring 13 deforms, then under the mutually connected state, the cover plate 7 effectively buffers the impact force generated in the process of liquid fast flow by means of the generation of the counterforce of the spring 13, when a first protective layer 14, a second protective layer 15 and a third protective layer 16 which are respectively epoxy-phenolic aldehyde paint, asphalt paint and inorganic zinc-rich paint are covered on the inner wall of the valve body 1 through the integrally formed arrangement, under the state that three kinds of anticorrosive materials cover each other, mutual complementation for whole device has good anticorrosive effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. The utility model provides a butterfly valve with corrosion resistance, includes valve body (1), manual carousel (6) and vertical post (11), its characterized in that: the valve comprises a valve body (1), a valve plate (2) is mounted inside the valve body (1), a valve rod (3) is fixed above the valve plate (2) in an inserting mode, an electric mechanism (4) is connected to the top of the valve rod (3), a sleeve (5) is sleeved at the outer end of the electric mechanism (4), a manual rotary disc (6) is arranged on one side of the sleeve (5) through movable connection, a cover plate (7) is mounted right in front of the valve plate (2), a flange plate (8) is fixed at the outer end of the valve body (1), a positioning hole (9) is formed in the flange plate (8) through one-time cutting, a sealing gasket (10) is fixed at the outer end of the valve plate (2), a vertical column (11) is arranged at one end of the cover plate (7), a fixing sleeve ring (12) is sleeved at the outer end of the vertical column (11), a spring (, the inner wall of the valve body (1) is provided with a first protective layer (14) through integral forming, the top of the first protective layer (14) is covered with a second protective layer (15), and a third protective layer (16) is tightly attached to the upper portion of the second protective layer (15).

2. A butterfly valve with corrosion resistance according to claim 1, characterized in that: the valve plate (2) with the shape of a disc-shaped structure is arranged in the valve body (1), and the valve plate (2) is connected with the tail end of the output end of the electric mechanism (4) through the valve rod (3).

3. A butterfly valve with corrosion resistance according to claim 1, characterized in that: the side of apron (7) is the slope form and sets up in the top of spring (13), and the top fixed connection of welding and valve plate (2) is passed through to the bottom of spring (13), the connection of spring (13) and apron (7) constitutes elastic structure, and apron (7) through pegging graft and vertical post (11) fixed connection, the bottom of vertical post (11) and the top fixed connection of apron (7).

4. A butterfly valve with corrosion resistance according to claim 1, characterized in that: the flange plate (8) and the valve body (1) are connected to form an integrated structure, and positioning holes (9) in a hollow array structure are formed in the flange plate (8).

5. A butterfly valve with corrosion resistance according to claim 1, characterized in that: the lower surface of the second protective layer (15) and the upper surface of the first protective layer (14) are mutually attached, and the second protective layer (15) and the third protective layer (16) are integrally formed.