Extreme temperature difference valve sealing assembly

Abstract

The utility model relates to the technical field of valve sealing assemblies, and discloses an extreme temperature difference valve sealing assembly which comprises a valve element, an inner valve sleeve is arranged on the outer side of the valve element, an outer valve sleeve is arranged on the outer side of the inner valve sleeve, a wear-resistant sealing block is arranged on the outer side of the outer valve sleeve, an upper valve rod is connected to the middle of the top of the valve element, and a valve rod is connected to the middle of the top of the valve element. The lower valve rod is arranged in the middle of the bottom of the valve element, the upper end of the upper valve rod sequentially penetrates through the inner valve sleeve, the outer valve sleeve and the wear-resisting sealing block, the interior of the wear-resisting sealing block is hollow, an electric heating wire is installed in the wear-resisting sealing block, and a hollow cavity is formed in the upper valve rod. According to the valve sealing assembly, the inner valve sleeve, the outer valve sleeve and the abrasion-resistant sealing block are arranged and matched with one another, so that abrasion caused by direct contact between the valve element and the valve body in the rotating process can be avoided, and the abrasion resistance of the valve sealing assembly can be improved through the arrangement of the abrasion-resistant sealing block.

Description

Technical Field

[0001] The utility model relates to the technical field of valve sealing components, in particular to an extreme temperature difference valve sealing component. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc., and the valve seal assembly is one of the components of the valve.

[0003] When in use, existing valve sealing assemblies cannot avoid wear caused by direct contact between the valve core and the valve body during rotation, and the wear resistance of existing valve sealing assemblies is poor. In addition, under extreme temperature differences, the valve core and the valve body are easily frozen, resulting in an inability to open. Therefore, there is an urgent need for an extreme temperature difference valve sealing assembly to solve the above technical problems. Utility Model Content

[0004] The purpose of the present utility model is to provide an extreme temperature difference valve sealing assembly to solve the problem of the existing valve sealing assembly proposed in the above background technology. When in use, it is impossible to avoid the wear caused by the direct contact between the valve core and the valve body during the rotation process, and the wear resistance of the existing valve sealing assembly is poor. In addition, under extreme temperature differences, the valve core and the valve body are easily frozen, resulting in the inability to open.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] When the closure is closed, the closure is opened and closed, and a heat-resistant seal is applied to the closure to release the closure member from the oil drain plug, the closure member is closed and closed, and a heat-resistant seal is applied to the closure member to release the closure member from the oil drain plug.

[0007] As a preferred technical solution of the present invention, the wear-resistant sealing block is made of wear-resistant steel material.

[0008] As a preferred technical solution of the present invention, the thermal insulation block is made of rock wool board material.

[0009] As a preferred technical solution of the present invention, the inner valve sleeve and the outer valve sleeve are both made of tungsten steel.

[0010] As a preferred technical solution of the present invention, the valve core, the inner valve sleeve, the outer valve sleeve and the wear-resistant sealing block are connected in sequence by welding.

[0011] As a preferred technical solution of the present invention, the heating wire does not contact the inner side wall of the wear-resistant sealing block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The utility model provides an inner valve sleeve, an outer valve sleeve and a wear-resistant sealing block, and utilizes the mutual cooperation between them to avoid the wear caused by the direct contact between the valve core and the valve body during the rotation process. The provision of the wear-resistant sealing block can improve the wear resistance of the valve sealing assembly.

[0014] 2. The utility model provides a wear-resistant sealing block and a heating wire, so that heat can be generated by energizing the heating wire to heat the wear-resistant sealing block, thereby preventing the wear-resistant sealing block from freezing between the valve body under extreme temperature differences and causing the valve to be unable to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0020] In the figure: 1. Valve core; 2. Inner valve sleeve; 3. Outer valve sleeve; 4. Wear-resistant sealing block; 5. Upper valve stem; 6. Lower valve stem; 7. Heating wire; 8. Hollow chamber; 9. Insulation block. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to explain the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the utility model. The different types of cross-section lines in the accompanying drawings of the embodiments of the present utility model are not marked in accordance with national standards, nor do they impose requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0022] See also Figure 1-4 , an extreme temperature difference valve sealing assembly, including a valve core 1, an inner valve sleeve 2 is provided on the outside of the valve core 1, an outer valve sleeve 3 is provided on the outside of the inner valve sleeve 2, a wear-resistant sealing block 4 is provided on the outside of the outer valve sleeve 3, an upper valve stem 5 is connected to the center of the top of the valve core 1, and a lower valve stem 6 is provided at the center of the bottom of the valve core 1. The upper end of the upper valve stem 5 passes through the inner valve sleeve 2, the outer valve sleeve 3 and the wear-resistant sealing block 4 in sequence. The interior of the wear-resistant sealing block 4 is hollow, and a heating wire 7 is installed inside the wear-resistant sealing block 4. By arranging the wear-resistant sealing block 4 and the heating wire 7, heat can be generated by energizing the heating wire 7, so that the wear-resistant sealing block 4 can be heated to prevent freezing between the wear-resistant sealing block 4 and the valve body under extreme temperature difference, causing failure. In order to prevent the valve from being opened, a hollow chamber 8 is provided inside the upper valve stem 5. The two ends of the heating wire 7 pass through the left and right side walls of the upper valve stem 5 respectively and pass through the hollow chamber 8 from the upper left side of the upper valve stem 5. The two ends of the heating wire 7 are connected with the side walls of the upper valve stem 5 with heat insulation blocks 9. The lower end of the lower valve stem 6 passes through the inner valve sleeve 2, the outer valve sleeve 3 and the wear-resistant sealing block 4 in sequence. By arranging the inner valve sleeve 2, the outer valve sleeve 3 and the wear-resistant sealing block 4, and utilizing the mutual cooperation between the inner valve sleeve 2, the outer valve sleeve 3 and the wear-resistant sealing block 4, the wear caused by the direct contact between the valve core 1 and the valve body during rotation can be avoided. And by arranging the wear-resistant sealing block 4, the wear resistance of the valve sealing assembly can be improved.

[0023] The wear-resistant sealing block 4 is made of wear-resistant steel material, thereby improving the wear resistance of the valve sealing assembly.

[0024] The heat-insulating block 9 is made of rock wool board material. The heat-insulating block 9 can prevent the heating wire 7 from directly contacting the upper valve stem 5 and getting hot.

[0025] The inner valve sleeve 2 and the outer valve sleeve 3 are both made of tungsten steel. The inner valve sleeve 2 and the outer valve sleeve 3 made of tungsten steel enhance the structural strength of the valve sealing assembly.

[0026] The valve core 1, the inner valve sleeve 2, the outer valve sleeve 3 and the wear-resistant sealing block 4 are connected in sequence by welding, and are connected by welding to form an integral body, which is convenient for installation and use.

[0027] The heating wire 7 does not contact the inner side wall of the wear-resistant sealing block 4 , thereby preventing the heating wire 7 from directly contacting the wear-resistant sealing block 4 and becoming heated.

[0028] The working principle and use process of the utility model are as follows: first, by arranging the inner valve sleeve 2, the outer valve sleeve 3 and the wear-resistant sealing block 4, the wear caused by the direct contact between the valve core 1 and the valve body during the rotation can be avoided, and the wear-resistant sealing block 4 can be provided to improve the wear resistance of the valve sealing assembly. A seal is formed between the wear-resistant sealing block 4 and the valve body of the valve. The inner valve sleeve 2 and the outer valve sleeve 3 made of tungsten steel material enhance the structural strength of the valve sealing assembly. The valve core 1, the inner valve sleeve 2, the outer valve sleeve 3 and the wear-resistant sealing block 4 are connected in sequence by welding. The connection by welding forms an integrated structure, which is convenient for installation and use.

[0029] By providing a wear-resistant sealing block 4 and a heating wire 7, heat can be generated by energizing the heating wire 7, thereby heating the wear-resistant sealing block 4 to prevent the wear-resistant sealing block 4 and the valve body from freezing under extreme temperature differences, thereby preventing the valve from being unable to open. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0030] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An extreme temperature difference valve sealing assembly, comprising a valve core (1), characterized in that: The outer side of the valve core (1) is provided with an inner valve sleeve (2), the outer side of the inner valve sleeve (2) is provided with an outer valve sleeve (3), the outer side of the outer valve sleeve (3) is provided with a wear-resistant sealing block (4), the top center of the valve core (1) is connected with an upper valve stem (5), the bottom center of the valve core (1) is provided with a lower valve stem (6), the upper end of the upper valve stem (5) passes through the inner valve sleeve (2), the outer valve sleeve (3) and the wear-resistant sealing block (4) in sequence, the interior of the wear-resistant sealing block (4) is hollow, A heating wire (7) is installed inside the wear-resistant sealing block (4), and a hollow chamber (8) is provided inside the upper valve stem (5). The two ends of the heating wire (7) respectively pass through the left and right side walls of the upper valve stem (5) and pass through the hollow chamber (8) from the upper left side of the upper valve stem (5). The two ends of the heating wire (7) are connected to the side walls of the upper valve stem (5) with heat insulation blocks (9). The lower end of the lower valve stem (6) passes through the inner valve sleeve (2), the outer valve sleeve (3) and the wear-resistant sealing block (4) in sequence.

2. The extreme temperature difference valve sealing assembly according to claim 1, characterized in that: The wear-resistant sealing block (4) is made of wear-resistant steel material.

3. The extreme temperature difference valve sealing assembly according to claim 1, characterized in that: The heat insulation block (9) is made of rock wool board material.

4. The extreme temperature difference valve sealing assembly according to claim 1, characterized in that: The inner valve sleeve (2) and the outer valve sleeve (3) are both made of tungsten steel material.

5. The extreme temperature difference valve sealing assembly according to claim 1, characterized in that: The valve core (1), the inner valve sleeve (2), the outer valve sleeve (3) and the wear-resistant sealing block (4) are connected in sequence by welding.

6. The extreme temperature difference valve sealing assembly according to claim 1, characterized in that: The heating wire (7) does not contact the inner side wall of the wear-resistant sealing block (4).

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