Sealing structure of electric control valve

Abstract

The utility model discloses a sealing structure of an electric control valve, which comprises a control valve body and a sealing component, first flanges are fixed at two ends of the control valve body, and the two ends of the control valve body are fixedly connected with a pipeline through the first flanges. A first flange is fixed to one end of the adjusting valve body, a second flange matched with the first flange is fixed to one end of the pipeline, a sealing assembly is arranged between the first flange and the second flange, a protective layer is arranged on the outer wall of the adjusting valve body, and the protective layer is a waterproof corrosion-resistant coating layer. Through the arrangement of the first stainless steel gasket, the first stainless steel spring gasket, the rubber gasket, the second stainless steel spring gasket and the second stainless steel gasket, the preliminary sealing effect can be achieved, through the arrangement of the sealing groove in the first flange and the cooperation of the insertion cylinder arranged on the second flange, the leakproofness at the flange connecting position is further improved, and leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of electric regulating valve technology, and more specifically, to a sealing structure for an electric regulating valve. Background Technology

[0002] Electric control valves are important actuators in industrial automation process control, mainly used to regulate process parameters such as flow rate, temperature, and pressure of media in pipelines.

[0003] According to announcement number CN222122248U, a sealing structure for an electric regulating valve is disclosed, including a valve seat. A fitting component is fixedly installed at the upper end of the valve seat, a sealing component is fixedly installed in the middle of the inner wall of the valve seat, and a buffer component is fixedly installed at the lower end of the sealing component. The fitting component includes a support flange and a mounting flange, and the support flange is fixedly installed at the upper end of the valve seat. This sealing structure for an electric regulating valve allows the two flanges to fit more tightly through the fitting component, effectively preventing leakage caused by the medium flowing out of gaps. The sealing component allows for effective regulation of the medium when the regulating valve core moves downwards during valve opening, and its tight design prevents medium leakage. The buffer component reduces the pressure exerted by the medium on the extension block during valve operation, thereby extending the service life of the valve core.

[0004] However, the sealing structure of the above-mentioned electric regulating valve has the following defects:

[0005] The sealing components are only installed inside the electric control valve. The mounting flanges at the connection points on both sides of the electric control valve are not equipped with sealing mechanisms. When the electric control valve is installed with the pipeline using mounting flanges, the sealing is only achieved by the metal surfaces touching, which results in poor sealing performance and a risk of leakage.

[0006] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0007] In view of the problems in the related technologies, this utility model proposes a sealing structure for an electric regulating valve to overcome the above-mentioned technical problems existing in the existing related technologies.

[0008] Therefore, the specific technical solution adopted by this utility model is as follows:

[0009] A sealing structure for an electric regulating valve includes a regulating valve body and a sealing assembly. Both ends of the regulating valve body are fixed with a first flange, and both ends of the regulating valve body are fixedly connected to a pipeline through the first flange. One end of the pipeline is fixed with a second flange that matches the first flange. A sealing assembly is provided between the first flange and the second flange. A protective layer is provided on the outer wall of the regulating valve body.

[0010] As a further embodiment of this utility model, both the first flange and the second flange are provided with fixing holes, and fixing bolts are provided in the fixing holes.

[0011] As a further embodiment of this utility model, a sealing groove is provided on one side of the second flange, a tube matching the first flange is fixed on one side of the first flange, and a sleeve matching the sealing groove is fixed on one side of the first flange.

[0012] As a further embodiment of this invention, a gap is left between the insertion tube and the insertion cylinder.

[0013] As a further embodiment of this invention, the sealing component is placed in the sealing groove.

[0014] As a further embodiment of this utility model, the sealing assembly includes a first stainless steel washer, a first stainless steel spring washer, a rubber washer, a second stainless steel spring washer, and a second stainless steel washer.

[0015] As a further embodiment of this invention, the protective layer is a waterproof and corrosion-resistant coating layer.

[0016] The beneficial effects of this utility model are as follows: by setting a first stainless steel washer, a first stainless steel spring washer, a rubber washer, a second stainless steel spring washer, and a second stainless steel washer, a preliminary sealing effect can be achieved. By setting a sealing groove on the second flange and cooperating with the insert on the first flange, the airtightness at the flange connection is further improved, preventing leakage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the sealing structure of an electric regulating valve according to an embodiment of the present utility model;

[0019] Figure 2This is an exploded view of the sealing structure of an electric regulating valve according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the connection between the first flange and the second flange of a sealing structure of an electric regulating valve according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of a sealing assembly of a sealing structure for an electric regulating valve according to an embodiment of the present invention.

[0022] In the picture:

[0023] 1. Control valve body; 2. Sealing assembly; 3. First flange; 4. Pipe; 5. Second flange; 6. Fixing hole; 7. Fixing bolt; 8. Sealing groove; 9. Insert pipe; 10. Insert sleeve; 11. First stainless steel washer; 12. First stainless steel spring washer; 13. Rubber washer; 14. Second stainless steel spring washer; 15. Second stainless steel washer. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a sealing structure for an electric regulating valve is provided.

[0026] Please refer to the instruction manual appendix. Figure 1-4According to an embodiment of the present invention, a sealing structure for an electric regulating valve includes a regulating valve body 1 and a sealing assembly 2. Both ends of the regulating valve body 1 are fixed with first flanges 3, and both ends of the regulating valve body 1 are fixedly connected to a pipe 4 via the first flanges 3. One end of the pipe 4 is fixed with a second flange 5 that matches the first flange 3. A sealing assembly 2 is provided between the first flange 3 and the second flange 5. A protective layer is provided on the outer wall of the regulating valve body 1. Fixing holes 6 are provided on both the first flange 3 and the second flange 5. A fixing bolt 7 is provided on the upper part. A sealing groove 8 is opened on one side of the second flange 5. A tube 9 matching the first flange 3 is fixed on one side of the first flange 3. A cylinder 10 matching the sealing groove 8 is fixed on one side of the first flange 3. A gap is left between the tube 9 and the cylinder 10. The sealing assembly 2 is placed in the sealing groove 8. The sealing assembly 2 includes a first stainless steel washer 11, a first stainless steel spring washer 12, a rubber washer 13, a second stainless steel spring washer 14, and a second stainless steel washer 15. The protective layer is a waterproof and corrosion-resistant coating layer.

[0027] By setting the first stainless steel washer 11, the first stainless steel spring washer 12, the rubber washer 13, the second stainless steel spring washer 14, and the second stainless steel washer 15, a preliminary sealing effect can be achieved. By setting the sealing groove 8 on the second flange 5, and cooperating with the insert 10 set on the first flange 3, the airtightness at the flange connection is further improved, and leakage is prevented.

[0028] In use, firstly, the first stainless steel washer 11, the first stainless steel spring washer 12, the rubber washer 13, the second stainless steel spring washer 14, and the second stainless steel washer 15 are sequentially placed into the sealing groove 8 of the second flange 5. Then, the first flange 3 of the regulating valve body 1 is inserted into the second flange 5 (the insertion tube 9 is inserted into the second flange 5, and the insertion cylinder 10 is inserted into the sealing groove 8, so that one end of the insertion cylinder 10 is tightly pressed against the sealing assembly 2). Then, the fixing bolt 7 is inserted into the fixing hole 6 to fix the first flange 3 and the second flange 5, which greatly improves the sealing performance of the regulating valve body 1 and prevents leakage.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sealing structure of an electric regulating valve, comprising a regulating valve body (1) and a sealing assembly (2), characterized in that: Both ends of the adjusting valve body (1) are fixed with first flanges (3), both ends of the adjusting valve body (1) are fixedly connected with pipelines (4) through the first flanges (3), one end of the pipeline (4) is fixed with a second flange (5) matched with the first flange (3), a sealing assembly (2) is arranged between the first flange (3) and the second flange (5), and an outer wall of the adjusting valve body (1) is provided with a protective layer.

2. The seal structure of an electric regulating valve according to claim 1, wherein: Both the first flange (3) and the second flange (5) are provided with fixing holes (6), and the fixing holes (6) are provided with fixing bolts (7).

3. The seal structure of an electric regulating valve according to claim 1, wherein: One side of the second flange (5) is provided with a sealing groove (8), one side of the first flange (3) is fixed with a cannula (9) matched with the first flange (3), and one side of the first flange (3) is fixed with a plug (10) matched with the sealing groove (8).

4. The seal structure of an electric regulating valve according to claim 3, wherein: The cannula (9) and the plug (10) are left with a gap.

5. The seal structure of an electrically operated regulating valve according to claim 4, wherein: The sealing assembly (2) is placed in the sealing groove (8).

6. The seal structure of an electrically operated regulating valve according to claim 1, wherein: The sealing assembly (2) comprises first stainless steel gaskets (11), first stainless steel spring gaskets (12), rubber gaskets (13), second stainless steel spring gaskets (14) and second stainless steel gaskets (15).

7. The seal structure of an electrically operated regulating valve according to claim 1, wherein: The protective layer is a waterproof and corrosion-resistant coating layer.

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