Scouring-resistant sealing stop valve

Abstract

The utility model relates to the field of stop valves, and discloses a washing-resistant sealing stop valve which comprises a valve body, connection protection modules are arranged on the two side walls of the valve body, a lower cover is arranged in the center of the upper end face of the valve body, an upper cover is arranged in the center of the upper end face of the lower cover, and a plurality of bolts are annularly arranged on the upper end face of the upper cover. A top box is arranged in the center of the upper end face of the upper cover, a gland is arranged in the center of the upper end face of the top box, a screw rod is arranged in the center of the upper end face of the gland, a rotating disc is arranged in the center of the upper end face of the screw rod, a valve clack is arranged on the upper portion of the center in the valve body, and a sealing gasket is arranged on the upper portion of the center in the valve body. According to the utility model, the connecting pipe, the flange, the threaded hole and the protective layer are adopted, an inlet and outlet channel of a medium is provided, and the valve body is tightly connected with other equipment or pipelines, so that more stable and reliable work is realized, and the normal operation of the valve and the safety of a system are ensured.

Description

Technical Field

[0001] The utility model relates to the field of stop valves, in particular to a scour-resistant sealing stop valve. Background Art

[0002] The erosion-resistant sealed stop valve is a valve commonly used in pipeline systems to control the flow of media. It has the characteristics of corrosion resistance, high temperature resistance, and pressure shock resistance. It is widely used in chemical, petroleum, electric power and other industries.

[0003] In the case of large fluid impact, traditionally designed valves may not be able to withstand long-term scouring, affecting their stability and reliability. Therefore, those skilled in the art provide a scouring-resistant sealed stop valve to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a scour-resistant sealed stop valve is proposed. By adopting a connecting pipe, a flange, a threaded hole and a protective layer, this design can provide an inlet and outlet channel for the medium, and can tightly connect the valve body with other equipment or pipelines, so as to achieve more stable and reliable operation. By using a rubber sealing gasket, the sealing gasket is made of rubber and has good sealing performance and wear resistance, which can effectively prevent leakage of the medium and ensure the normal operation of the valve and the safety of the system. The opening and closing control of the valve is realized through the spiral rod valve disc connection, and a ring is also sleeved on the upper center of the outer side wall of the spiral rod to provide additional support and stability, prevent the spiral rod from loosening or falling off during operation, and accurately adjust the flow and pressure of the medium to meet the needs under different working conditions.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a scour-resistant sealed stop valve, comprising a valve body, both side walls of the valve body are provided with connection protection modules, a lower cover is provided at the center of the upper end surface of the valve body, an upper cover is provided at the center of the upper end surface of the lower cover, a plurality of bolts are arranged in a ring shape on the upper end surface of the upper cover, a top box is provided at the center of the upper end surface of the upper cover, a pressure cover is provided at the center of the upper end surface of the top box, a spiral rod is provided at the center of the upper end surface of the pressure cover, a rotating disk is provided at the center of the upper end surface of the spiral rod, a valve disc is provided at the upper center of the valve body, and a sealing gasket is provided at the upper center of the valve body;

[0006] Through the above technical scheme, by adopting connecting pipes, flanges, threaded holes and protective layers, this design can provide inlet and outlet channels for the medium, and can tightly connect the valve body with other equipment or pipelines, so as to achieve more stable and reliable operation. By using rubber sealing gaskets, the sealing gaskets are made of rubber and have good sealing performance and wear resistance, which can effectively prevent leakage of the medium and ensure the normal operation of the valve and the safety of the system. The opening and closing control of the valve is realized through the spiral rod valve disc connection, and a ring is also sleeved on the upper center of the outer wall of the spiral rod to provide additional support and stability, prevent the spiral rod from loosening or falling off during operation, and accurately adjust the flow and pressure of the medium to meet the needs under different working conditions.

[0007] Furthermore, the two connection protection modules include two connection pipes, two flanges, a plurality of threaded holes and two protection layers, the two connection pipes are respectively arranged at the center of the two side walls of the valve body, the two flanges are respectively arranged at the center of one side wall of the two connection pipes, the plurality of threaded holes are respectively arranged in a rectangular shape on one wall of the two flanges, and the two protection layers are respectively sleeved inside the two connection pipes;

[0008] Through the above technical solution, the two connecting pipes are respectively used to connect with other equipment or pipelines, and they provide inlet and outlet channels for the medium. The two flanges are respectively used to connect with the flanges of other equipment or pipelines and are fixed through threaded holes. Multiple threaded holes provide installation positions for tightly connecting the valve body with other equipment or pipelines. The two protective layers play a role in protecting the connecting pipes.

[0009] Furthermore, the sealing gasket is made of rubber;

[0010] Through the above technical solution, the rubber sealing gasket has good sealing performance and wear resistance, can effectively prevent the leakage of the medium, and ensure the normal operation of the valve and the safety of the system.

[0011] Furthermore, a circular ring is provided on the threaded sleeve at the upper center of the outer side wall of the spiral rod;

[0012] Through the above technical solution, the presence of the ring can provide additional support and stability to prevent the spiral rod from loosening or falling off during operation, thereby ensuring the normal operation of the valve.

[0013] Furthermore, the spiral rod passes through the lower end surface of the rotating disk and reaches the upper end surface of the rotating disk, and the end portion is rotatably connected to the inside of the nut;

[0014] Through the above technical solution, the opening and closing control of the valve is realized through the combination of the spiral rod and the nut, the gap between the valve disc and the valve body is changed, and the flow of the medium is controlled.

[0015] Furthermore, the protective layer is made of polytetrafluoroethylene;

[0016] Through the above technical solution, polytetrafluoroethylene has good corrosion resistance and low friction coefficient, and can effectively prevent the medium from corroding the connecting pipe.

[0017] Furthermore, the valve body is made of stainless steel;

[0018] Through the above technical solutions, the stainless steel material has excellent corrosion resistance and mechanical strength, and is suitable for various media and working conditions.

[0019] Furthermore, one end of the spiral rod passes through the upper end surface of the gland, the upper end surface of the top box, the upper end surface of the upper cover, and the upper end surface of the lower cover to the inside of the valve body, and the end is fixedly connected to the upper end surface of the valve disc;

[0020] Through the above technical solution, the rotation of the spiral rod causes the valve disc to move up and down, which can accurately adjust the flow and pressure of the medium to meet the needs under different working conditions.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the erosion-resistant sealing stop valve adopts a connecting pipe, a flange, a threaded hole and a protective layer. This design can provide an inlet and outlet channel for the medium, and can tightly connect the valve body with other equipment or pipelines, thereby achieving more stable and reliable operation.

[0023] 2. In the utility model, a rubber sealing pad is used. The sealing pad is made of rubber and has good sealing performance and wear resistance, which can effectively prevent leakage of the medium and ensure the normal operation of the valve and the safety of the system.

[0024] 3. In the utility model, the opening and closing control of the valve is realized through the connection of the spiral rod valve disc, and a ring is also sleeved on the upper center of the outer side wall of the spiral rod to provide additional support and stability to prevent the spiral rod from loosening or falling off during operation, accurately adjust the flow and pressure of the medium, and meet the needs under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a scour-resistant sealing stop valve proposed by the utility model;

[0026] Figure 2 This is a front cross-sectional view of a scour-resistant sealing stop valve proposed by the utility model;

[0027] Figure 3 This is a side view of a scour-resistant sealing stop valve proposed by the utility model;

[0028] Figure 4The utility model is a top view of a scour-resistant sealing stop valve.

[0029] Legend:

[0030] 1. Valve body; 2. Connection protection module; 201. Connection pipe; 202 flange; 203. Threaded hole; 204. Protection layer; 3. Lower cover; 4. Upper cover; 5. Bolts; 6. Top box; 7. Pressure cover; 8. Screw rod; 9. Ring; 10. Rotating disk; 11. Valve disc; 12. Sealing gasket. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-4 The utility model provides an embodiment: a scour-resistant sealed stop valve, including a valve body 1, both side walls of the valve body 1 are provided with a connecting protection module 2, a lower cover 3 is provided at the center of the upper end surface of the valve body 1, an upper cover 4 is provided at the center of the upper end surface of the lower cover 3, and a plurality of bolts 5 are arranged in a ring on the upper end surface of the upper cover 4, a top box 6 is provided at the center of the upper end surface of the upper cover 4, a pressure cover 7 is provided at the center of the upper end surface of the top box 6, a spiral rod 8 is provided at the center of the upper end surface of the pressure cover 7, and a rotating disk 10 is provided at the center of the upper end surface of the spiral rod 8, a valve disc 11 is provided at the upper center of the valve body 1, and a sealing gasket 12 is provided at the upper center of the valve body 1. When the valve needs to be closed, the spiral rod 8 on the rotating disk 10 makes the valve disc 11 fit closely with the sealing gasket 12 of the valve body 1 to achieve a sealing effect. When the valve needs to be opened, the spiral rod 8 is rotated to separate the valve disc 11 from the sealing gasket 12, thereby allowing the medium to flow through the valve body 1.

[0033] The two connection protection modules 2 include two connecting pipes 201, two flanges 202, multiple threaded holes 203 and two protective layers 204. The two connecting pipes 201 are respectively arranged at the center of the two side walls of the valve body 1, and the two flanges 202 are respectively arranged at the center of one side wall of the two connecting pipes 201. Multiple threaded holes 203 are respectively arranged in a rectangular shape on one wall of the two flanges 202. Two protective layers 204 are respectively sleeved inside the two connecting pipes 201. The two connecting pipes 201 are respectively used to connect with other equipment or pipelines, and they provide inlet and outlet channels for the medium. The two flanges 202 are respectively used to connect with the flanges 202 of other equipment or pipelines, and are fixed by threaded holes 203. Multiple threaded holes 203 provide installation positions for tightly connecting the valve body 1 with other equipment or pipelines. The two protective layers 204 play a role in protecting the connecting pipes 201.

[0034] The sealing gasket 12 is made of rubber. The rubber sealing gasket 12 has good sealing performance and wear resistance, can effectively prevent leakage of the medium, ensure the normal operation of the valve and the safety of the system, and a ring 9 is provided on the threaded sleeve at the upper center of the outer wall of the spiral rod 8. The existence of the ring 9 can provide additional support and stability to prevent the spiral rod 8 from loosening or falling off during operation, thereby ensuring the normal operation of the valve. The spiral rod 8 passes through the lower end face of the rotating disk 10 and passes to the upper end face of the rotating disk 10, and the end is rotatably connected to the inside of the nut. Through the combination of the spiral rod 8 and the nut, the opening and closing control of the valve is realized, and the gap between the valve disc 11 and the valve body 1 is changed. To control the flow of the medium, the protective layer 204 is made of polytetrafluoroethylene, which has good corrosion resistance and low friction coefficient, and can effectively prevent the medium from corroding the connecting pipe 201. The valve body 1 is made of stainless steel, which has excellent corrosion resistance and mechanical strength, and is suitable for various media and working conditions. One end of the spiral rod 8 passes through the upper end surface of the pressure cover 7, the upper end surface of the top box 6, the upper end surface of the upper cover 4, and the upper end surface of the lower cover 3 to reach the inside of the valve body 1, and the end is fixedly connected to the upper end surface of the valve disc 11. The rotation of the spiral rod 8 makes the valve disc 11 move up and down, which can accurately adjust the flow and pressure of the medium to meet the needs under different working conditions.

[0035] Working principle: When the valve needs to be closed, the spiral rod 8 on the rotating disk 10 is used to make the valve disc 11 fit tightly with the sealing gasket 12 of the valve body 1 to achieve a sealing effect. When the valve needs to be opened, the spiral rod 8 is rotated to separate the valve disc 11 from the sealing gasket 12, thereby allowing the medium to flow through the valve body 1. The two connecting pipes 201 are respectively used to connect with other equipment or pipelines, and they provide inlet and outlet channels for the medium. The two flanges 202 are respectively used to connect with the flanges 202 of other equipment or pipelines, and are fixed through threaded holes 203. Multiple threaded holes 203 provide installation positions for tightly connecting the valve body 1 with other equipment or pipelines. The two protective layers 204 serve to protect the connecting pipes 201.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A scour-resistant sealing stop valve, comprising a valve body (1), characterized in that: The two side walls of the valve body (1) are provided with a connection protection module (2); a lower cover (3) is provided at the center of the upper end surface of the valve body (1); an upper cover (4) is provided at the center of the upper end surface of the lower cover (3); a plurality of bolts (5) are arranged in a ring shape on the upper end surface of the upper cover (4); a top box (6) is provided at the center of the upper end surface of the upper cover (4); a pressure cover (7) is provided at the center of the upper end surface of the top box (6); a spiral rod (8) is provided at the center of the upper end surface of the pressure cover (7); a rotating disk (10) is provided at the center of the upper end surface of the spiral rod (8); a valve flap (11) is provided at the upper center of the interior of the valve body (1); and a sealing gasket (12) is provided at the upper center of the interior of the valve body (1).

2. The erosion-resistant sealing stop valve according to claim 1, characterized in that: The two connection protection modules (2) comprise two connection pipes (201), two flanges (202), a plurality of threaded holes (203) and two protection layers (204); the two connection pipes (201) are respectively arranged at the center of the two side walls of the valve body (1); the two flanges (202) are respectively arranged at the center of one side wall of the two connection pipes (201); the plurality of threaded holes (203) are respectively arranged in a rectangular shape on one wall of the two flanges (202); and the two protection layers (204) are respectively sleeved inside the two connection pipes (201).

3. The erosion-resistant sealing stop valve according to claim 1, characterized in that: The sealing pad (12) is made of rubber.

4. The erosion-resistant sealing stop valve according to claim 1, characterized in that: A circular ring (9) is threadedly sleeved at the upper center of the outer side wall of the spiral rod (8).

5. The erosion-resistant sealing stop valve according to claim 1, characterized in that: The spiral rod (8) passes through the lower end surface of the rotating disk (10) and reaches the upper end surface of the rotating disk (10), and the end portion is rotatably connected to the inside of the nut.

6. The erosion-resistant sealing stop valve according to claim 2, characterized in that: The material of the protective layer (204) is polytetrafluoroethylene.

7. The erosion-resistant sealing stop valve according to claim 1, characterized in that: The valve body (1) is made of stainless steel.

8. The erosion-resistant sealing stop valve according to claim 1, characterized in that: One end of the spiral rod (8) passes through the upper end surface of the pressure cover (7), the upper end surface of the top box (6), the upper end surface of the upper cover (4), and the upper end surface of the lower cover (3) to reach the interior of the valve body (1), and the end is fixedly connected to the upper end surface of the valve flap (11).

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