A valve core guiding structure

Abstract

The utility model discloses a valve core guiding structure, including valve core guiding handle and guide sleeve, the guide sleeve is provided with the through hole of valve core guiding handle's through -going, the valve core guiding handle is including guiding handle main part, the guiding handle main part is hexagonal prism, and the edge of hexagonal prism is contacted with the through -hole inner wall of guide sleeve, and the six side surfaces of hexagonal prism and the through -hole inner wall of guide sleeve form the flow channel between. The utility model discloses, and the guiding handle main part is hexagonal prism, makes valve core to have both cylindrical guiding stable effect and the hexagonal gap formation six upper and lower flow channels, and the granular coal slurry medium flows in enough big gap, and it is difficult to form coking to make the valve core jam and cause the equipment shutdown accident.

Description

Technical Field

[0001] This utility model relates to the technical field of regulating valves, specifically a valve core guide structure. Background Technology

[0002] Control valves in coal chemical plants, especially angle valves resistant to flash evaporation and cavitation erosion, often have a valve core guiding structure consisting of a cylindrical valve core guide stalk and a cylindrical guide sleeve. In practical applications, this structure is prone to problems because the medium, water and pulverized coal, contains viscous coal slurry particles that easily coke and become stuck between the valve core guide stalk and the guide sleeve. This can cause the valve core to stop moving up and down, or even completely cease operation, leading to shutdowns, major accidents, and significant economic losses. Therefore, we propose a new valve core guiding structure. Utility Model Content

[0003] The purpose of this invention is to provide a valve core guide structure to solve the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a valve core guide structure, including a valve core guide shank and a guide sleeve, wherein the guide sleeve is provided with a through hole for the valve core guide shank to pass through, the valve core guide shank includes a guide shank body, the guide shank body is a hexagonal prism, the edges of the hexagonal prism contact the inner wall of the through hole of the guide sleeve, and a flow channel is formed between the six sides of the hexagonal prism and the inner wall of the through hole of the guide sleeve.

[0005] Preferably, one end of the guide handle body is provided with a plug, and the other end of the guide handle body is provided with a connecting groove.

[0006] Preferably, the bottom end of the plug has a frustum-shaped structure, and the connecting groove has an internal thread.

[0007] Preferably, the diameter of the upper part of the plug is larger than the outer diameter of the guide handle body.

[0008] Compared with the prior art, the beneficial effects of this utility model are: the main body of the guide handle is a hexagonal prism, which makes the valve core have both the guiding and stabilizing function of a cylindrical shape and the six-cornered notch forming six upper and lower flow channels; the particulate coal slurry medium flows in a sufficiently large gap, making it less likely to form coke that would cause the valve core to jam and cause equipment shutdown accidents. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the valve core guide handle of this utility model.

[0010] In the diagram: 1. Valve core guide handle; 2. Guide sleeve; 3. Flow channel; 11. Guide handle body; 12. Plug; 13. Connecting groove. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0012] Please see Figure 1-2 In this embodiment of the present invention, a valve core guiding structure includes a valve core guide handle 1 and a guide sleeve 2. The guide sleeve 2 is provided with a through hole for the valve core guide handle 1 to pass through. The valve core guide handle 1 includes a guide handle body 11, which is a hexagonal prism. The edges of the hexagonal prism contact the inner wall of the through hole of the guide sleeve 2, and the six sides of the hexagonal prism form flow channels 3 between them and the inner wall of the through hole of the guide sleeve 2. The guide handle body 11 is a hexagonal prism, which allows the valve core to have both the guiding and stabilizing effect of a cylindrical shape and the six vertical flow channels formed by the hexagonal notch. The particulate coal slurry medium flows in a sufficiently large gap, making it less likely to form coke that could cause the valve core to jam and lead to equipment shutdown accidents.

[0013] One end of the guide handle body 11 is provided with a plug 12, and the other end of the guide handle body 11 is provided with a connecting groove 13. The bottom end of the plug 12 is a frustum-shaped structure, and the connecting groove 13 is provided with an internal thread. The diameter of the upper part of the plug 12 is larger than the outer diameter of the guide handle body 11.

[0014] The working principle of this utility model is as follows: the guide handle body 11 is a hexagonal prism, which makes the valve core have both the cylindrical guiding and stabilizing function and the hexagonal notch forming six upper and lower flow channels; the particulate coal slurry medium flows in a sufficiently large gap, which makes it difficult to form coke and cause the valve core to jam, thus preventing equipment shutdown accidents.

[0015] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A valve core guide structure, characterized in that: It includes a valve core guide handle (1) and a guide sleeve (2). The guide sleeve (2) is provided with a through hole through which the valve core guide handle (1) passes. The valve core guide handle (1) includes a guide handle body (11). The guide handle body (11) is a hexagonal prism. The edges of the hexagonal prism contact the inner wall of the through hole of the guide sleeve (2). A flow channel (3) is formed between the six sides of the hexagonal prism and the inner wall of the through hole of the guide sleeve (2).

2. The valve core guide structure according to claim 1, characterized in that: The guide handle body (11) has a plug (12) at one end and a connecting groove (13) at the other end.

3. The valve core guide structure according to claim 2, characterized in that: The bottom of the plug (12) is a frustum-shaped structure, and the connecting groove (13) is provided with an internal thread.

4. The valve core guide structure according to claim 2, characterized in that: The diameter of the upper part of the plug (12) is greater than the outer diameter of the guide handle body (11).

Images