CN217029970U - A corrosion-resistant globe valve for industrial valves - Google Patents

Abstract

The utility model discloses an anti-corrosion stop valve for an industrial valve, which comprises a valve body, wherein the top end of the valve body is fixedly connected with a valve rod, the side surface of the valve rod is fixedly connected with a plug, the side surface of the valve rod is fixedly connected with a cover plate above the plug, the inside of the valve body is fixedly connected with a baffle plate, a flow channel is arranged inside the baffle plate, the plug and the cover plate are connected with the flow channel, the inner wall of the valve body, the inner surfaces of the valve rod and the cover plate are fixedly connected with an anti-corrosion alloy layer, and the plug is made of anti-corrosion rubber. According to the utility model, the double-layer sealing is formed by arranging the plug and the cover body, and the valve can be further ensured, so that the sealing effect is ensured.

Description

A corrosion-resistant globe valve for industrial valves

technical field

The utility model relates to the field of cut-off valves, in particular to a corrosion-resistant cut-off valve for industrial valves.

Background technique

Globe valve, also known as cut-off valve, is a mandatory sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction force between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the valve stem The diameter of the valve should be large, otherwise the failure of the top of the valve stem will occur.

In industry, the shut-off valve needs to be stabilized by strong acid or strong alkali gas flow. At the same time, due to its corrosiveness, its internal sealing is easy to break, resulting in poor sealing, and the force of moving down through it is large, which is inconvenient to operate. .

Utility model content

The purpose of the utility model is to propose a corrosion-resistant shut-off valve for industrial valves in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a corrosion-resistant globe valve for industrial valves, comprising a valve body, the top of the valve body is fixedly connected with a valve stem, and the side surface of the valve stem is fixedly connected There is a plug, a cover plate is fixedly connected to the side surface of the valve stem and located above the plug, a baffle is fixedly connected to the inside of the valve body, and a flow channel is arranged inside the baffle, and the plug , The cover plate is connected with the flow channel;

The inner wall of the valve body, the valve stem and the inner surface of the cover plate are fixedly connected with a corrosion-resistant alloy layer, and the plug is made of corrosion-resistant rubber;

Both ends of the valve body are fixedly connected with connecting pipes, the inner surfaces of the connecting pipes are fixedly connected with connecting threads, and the inner surfaces of the connecting pipes are provided with stepped grooves on the outside of the connecting threads.

As a further description of the above technical solution:

One end of the valve stem extends to the inside of the valve body, and the cover plate and the plug are located inside the valve body.

As a further description of the above technical solution:

A guide groove is fixedly connected inside the valve body, and the valve stem is connected with the guide groove.

As a further description of the above technical solution:

A threaded sleeve is movably connected to the side surface of the connecting pipe, and a handle is fixedly connected to the outer surface of the threaded sleeve.

As a further description of the above technical solution:

A valve cover is fixedly connected to the upper surface of the valve body, and a sealing structure is arranged between the valve stem and the valve cover.

As a further description of the above technical solution:

The top end of the valve rod is fixedly connected with a rotating disk, and the side surface of the valve rod is provided with a spring.

As a further description of the above technical solution:

The side surface of the valve stem is provided with an external thread, the inner surface of the valve cover is provided with an internal thread, and the internal thread is connected with the external thread.

As a further description of the above technical solution:

A fluoroplastic layer is provided on the surface of the corrosion-resistant alloy layer and the plug.

The utility model has the following beneficial effects:

1. Compared with the prior art, the industrial valve uses a corrosion-resistant globe valve, which is provided with a plug and a cover to form a double-layer seal, and can further ensure the valve, thereby ensuring the sealing effect.

2. Compared with the prior art, the corrosion-resistant shut-off valve used in the industrial valve is provided with a valve stem and a spring on the side surface, which can save physical effort when shutting off the water flow, making the valve easy to close.

3. Compared with the prior art, the corrosion-resistant globe valve used in the industrial valve can realize various connection modes through the thread in the connecting pipe and the threaded sleeve on the outer surface of the connecting pipe, making it applicable to a wider range.

Description of drawings

1 is a schematic diagram of the overall structure of a corrosion-resistant shut-off valve for an industrial valve proposed by the utility model;

2 is a schematic diagram of the internal structure of a corrosion-resistant shut-off valve for an industrial valve proposed by the utility model;

3 is a schematic diagram of the internal structure of the connecting pipe of a corrosion-resistant shut-off valve for an industrial valve proposed by the utility model.

illustration:

1. Valve body; 2. Valve stem; 3. Plug; 4. Baffle plate; 5. Flow channel; 6. Cover plate; 7. Corrosion-resistant alloy layer; 8. Connecting pipe; 9. Connecting thread; 10. Ladder Slot; 11. Guide slot; 12. Threaded sleeve; 13. Grip; 14. Valve cover.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second" and "third" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance. In addition, Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to Figures 1-3, the utility model provides a corrosion-resistant globe valve for industrial valves: as shown in Figure 1, it includes a valve body 1, the top of the valve body 1 is fixedly connected with a valve stem 2, and the top of the valve stem 2 is fixedly connected. A rotating disc is fixedly connected, the side surface of the valve stem 2 is provided with a spring, which provides elastic force and reduces the force of the valve stem 2 to descend. The upper surface of the valve body 1 is fixedly connected with a valve cover 14. There is a sealing structure, the side surface of the valve stem 2 is provided with an external thread, the inner surface of the valve cover 14 is provided with an internal thread, which is convenient for adjustment, the internal thread is connected with the external thread, and the inside of the valve body 1 is fixedly connected with a guide groove 11. Control the direction of the valve stem 2, the valve stem 2 is connected with the guide groove 11, the side surface of the valve stem 2 is fixedly connected with a plug 3, and the side surface of the valve stem 2 is fixedly connected with a cover plate 6 above the plug 3, A two-layer seal is formed. The inside of the valve body 1 is fixedly connected with a baffle 4. The baffle 4 is provided with a flow channel 5 to facilitate the circulation of liquid. The plug 3 and the cover plate 6 are connected with the flow channel 5. The valve stem One end of the 2 extends to the inside of the valve body 1 , and the cover plate 6 and the plug 3 are both located inside the valve body 1 .

By providing the above components, a double-layer seal can be effectively formed, and the valve can be further ensured, thereby ensuring the sealing effect.

The inner wall of the valve body 1, the valve stem 2 and the inner surface of the cover plate 6 are fixedly connected with a corrosion-resistant alloy layer 7, the plug 3 is made of corrosion-resistant rubber, and the surfaces of the corrosion-resistant alloy layer 7 and the plug 3 are provided with a fluoroplastic layer.

By arranging the above components, a double layer of anti-corrosion material is arranged to enhance the anti-corrosion effect.

Both ends of the valve body 1 are fixedly connected with a connecting pipe 8 , the side surface of the connecting pipe 8 is movably connected with a threaded sleeve 12 , and the outer surface of the threaded sleeve 12 is fixedly connected with a handle 13 for easy rotation, and the inner surface of the connecting pipe 8 is connected A connecting thread 9 is fixedly connected, and a stepped groove 10 is provided on the inner surface of the connecting pipe 8 and on the outer side of the connecting thread 9 .

Through the thread 9 in the connecting pipe 8 and the threaded sleeve 12 on the outer surface of the connecting pipe, a variety of connection methods can be realized, making it more widely applicable

Working principle: During use, by rotating the valve stem 2, under the action of the spring, the valve stem 2 is moved upward, so that the plug 3 and the cover plate 6 are moved, and the internal water flow is lowered. The transmission pipe is connected. When connected, the plug 3 is lifted by the water flow, and the plug 3 is moved up by rotating the valve stem 2 to make the water flow. The internal corrosion-resistant alloy layer 7 and the fluoroplastic layer ensure the internal anti-corrosion properties.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model, All should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides an industry is corrosion-resistant type stop valve for valve, includes valve body (1), its characterized in that: the top end of the valve body (1) is fixedly connected with a valve rod (2), the side surface of the valve rod (2) is fixedly connected with a plug (3), the side surface of the valve rod (2) is fixedly connected with a cover plate (6) above the plug (3), the inside of the valve body (1) is fixedly connected with a baffle plate (4), a flow channel (5) is arranged inside the baffle plate (4), and the plug (3) and the cover plate (6) are connected with the flow channel (5);

the inner wall of the valve body (1), the inner surfaces of the valve rod (2) and the cover plate (6) are fixedly connected with a corrosion-resistant alloy layer (7), and the plug (3) is made of corrosion-resistant rubber;

the equal fixedly connected with connecting pipe (8) in both ends of valve body (1), the internal surface fixed connection of connecting pipe (8) has connecting thread (9), the internal surface of connecting pipe (8) and the outside that is located connecting thread (9) are provided with ladder groove (10).

2. The corrosion-resistant stop valve for an industrial valve according to claim 1, characterized in that: one end of the valve rod (2) extends to the inside of the valve body (1), and the cover plate (6) and the plug (3) are both located inside the valve body (1).

3. The corrosion-resistant stop valve for an industrial valve according to claim 1, characterized in that: the inside fixedly connected with guide way (11) of valve body (1), valve rod (2) are connected with guide way (11).

4. The corrosion-resistant stop valve for an industrial valve according to claim 1, characterized in that: the side surface of the connecting pipe (8) is movably connected with a threaded sleeve (12), and the outer surface of the threaded sleeve (12) is fixedly connected with a handle (13).

5. The corrosion-resistant stop valve for an industrial valve according to claim 1, characterized in that: the upper surface of the valve body (1) is fixedly connected with a valve cover (14), and a sealing structure is arranged between the valve rod (2) and the valve cover (14).

6. The corrosion-resistant stop valve for an industrial valve according to claim 1, characterized in that: the rotary disc is fixedly connected to the top end of the valve rod (2), and a spring is arranged on the side surface of the valve rod (2).

7. The corrosion-resistant stop valve for an industrial valve according to claim 5, characterized in that: the side surface of the valve rod (2) is provided with external threads, the inner surface of the valve cover (14) is provided with internal threads, and the internal threads are connected with the external threads.

8. The corrosion-resistant stop valve for an industrial valve according to claim 1, characterized in that: and fluoroplastic layers are arranged on the surfaces of the corrosion-resistant alloy layer (7) and the plug (3).

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