Wear-resistant self-sealing gate valve

Abstract

The utility model relates to the field of gate valves, and discloses a wear-resistant self-sealing gate valve which comprises a valve body, connecting pipes are arranged in the centers of the two side walls of the valve body, flanges are arranged on one side walls of the two connecting pipes, a protection module is arranged on the inner side wall of the valve body, and a valve cavity is formed in the center in the valve body. Flashboards are arranged at the positions, close to the two sides, of the center of the interior of the valve cavity, connecting blocks are arranged on one side walls of the two flashboards, a containing box is arranged at the center of the upper end face of the valve body, a screw rod is arranged at the center of the upper end face of the containing box, a rotating disc is arranged at the center of the upper end face of the screw rod, and filtering modules are arranged at the positions, close to the two sides, of the center of the interior of the protection module. According to the utility model, the protective layer plays a role in preventing external substances from invading and can bear certain friction and impact force, damage and abrasion to the valve body are reduced, the corrosion resistance and the low friction coefficient of the protective layer can reduce the friction loss of the valve body in the working process, and the service life is prolonged.

Description

Technical Field

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

[0002] Wear-resistant self-sealing gate valve is a new type of industrial valve. Its main features are wear resistance, high sealing and long life. It has broad application prospects in industrial production, can improve production efficiency and product quality, and reduce production costs.

[0003] The sealing performance of traditional gate valves is relatively poor. Due to the large contact area between the valve disc and the valve seat, it is easily eroded and worn by the medium, resulting in leakage problems. Especially under high pressure or high temperature conditions, the leakage problem is more obvious, affecting the normal operation of the valve. Therefore, technical personnel in this field provide a wear-resistant self-sealing gate 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 wear-resistant self-sealing gate valve is proposed. The protective layer plays a role in preventing the invasion of foreign substances, and can withstand a certain friction and impact force to reduce damage and wear to the valve body. The protective layer has good corrosion resistance and low friction coefficient, which can reduce the friction loss of the valve body during operation and extend the service life. By adopting the design of connecting pipes and flanges, self-sealing can be achieved on both sides of the valve body. This design can effectively prevent leakage and improve the sealing performance of the valve. The connecting block and the gate plate can achieve self-sealing function to avoid fluid leakage and environmental pollution. The filter cotton can adsorb and fix suspended matter to improve the filtering effect, and the filter net can effectively filter large particles in the liquid to ensure the normal flow of the fluid. This design can prevent particles and impurities from entering the valve body and protect the internal components of the valve body from damage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant self-sealing gate valve, comprising a valve body, a connecting pipe is provided at the center of both side walls of the valve body, a flange is provided on one side wall of the two connecting pipes, a protective module is provided on the inner side wall of the valve body, a valve cavity is provided at the center of the interior of the valve body, gate plates are provided at both sides of the center of the interior of the valve cavity, connecting blocks are provided on one side wall of the two gate plates, a placement box is provided at the center of the upper end face of the valve body, a spiral rod is provided at the center of the upper end face of the placement box, a rotating disk is provided at the center of the upper end face of the spiral rod, and a filter module is provided at both sides of the center of the interior of the protective module;

[0006] Through the above technical scheme, the protective layer can prevent the invasion of foreign substances and can withstand a certain amount of friction and impact force to reduce damage and wear to the valve body. The protective layer has good corrosion resistance and low friction coefficient, which can reduce the friction loss of the valve body during operation and extend the service life. By adopting the design of connecting pipes and flanges, the two sides of the valve body can achieve self-sealing. This design can effectively prevent leakage and improve the sealing performance of the valve. The connecting block and the gate can achieve self-sealing function to avoid fluid leakage and environmental pollution. The filter cotton can adsorb and fix suspended matter to improve the filtering effect, and the filter net can effectively filter large particles in the liquid to ensure the normal flow of the fluid. This design can prevent particles and impurities from entering the valve body and protect the internal components of the valve body from damage.

[0007] Further, the protection module includes a protection layer and a protective layer, the protection layer is sleeved on the inner wall of the valve body, and the protective layer is sleeved on the inner wall of the protection layer;

[0008] Through the above technical scheme, the protective layer plays a role in preventing the invasion of foreign substances. It can withstand a certain amount of friction and impact force, reduce damage and wear to the valve body, and increase the protection level of the valve body. The protective layer has good corrosion resistance and low friction coefficient, which can reduce the friction loss of the valve body during operation and extend its service life.

[0009] Furthermore, the filter module includes a filter screen and filter cotton, the filter cotton is arranged inside the protection module, and the filter screen is arranged inside the protection module on one side of the filter cotton;

[0010] Through the above technical solution, the filter cotton filters out particles and impurities in the fluid to prevent them from entering the interior of the valve body, thereby protecting the internal components of the valve body from damage. The filter cotton is made of a highly absorbent material and can adsorb and fix suspended matter to improve the filtering effect. The filter net effectively filters large particles in the liquid. The filter net has fine mesh holes that can block the entry of large particles while ensuring the normal flow of the fluid.

[0011] Furthermore, one side wall of each of the two flanges is provided with four threaded holes arranged in a circular shape;

[0012] Through the above technical solution, the threaded holes can be used to install bolts or nuts to firmly connect the flange with other equipment, thereby ensuring the stability and sealing of the valve body.

[0013] Furthermore, the filter screen is made of stainless steel;

[0014] Through the above technical solutions, stainless steel has excellent corrosion resistance and high strength, and can maintain stability and durability in various working environments.

[0015] Furthermore, one end of the spiral rod sequentially passes through the upper end surface of the placement box, the upper end surface of the valve body, the upper end surface of the valve cavity and the upper end surface of the connection block to reach the lower end of the connection block;

[0016] Through the above technical solution, through the penetration of the spiral rod, the tight connection between the various components can be ensured, and the normal operation and control of the valve body can be achieved.

[0017] Furthermore, the material of the protective layer is a ceramic coating;

[0018] Through the above technical solution, the ceramic has excellent hardness and wear resistance, and can effectively protect the valve body from the influence and damage of the external environment.

[0019] Furthermore, the material of the protective layer is polytetrafluoroethylene;

[0020] Through the above technical solution, polytetrafluoroethylene has a low friction coefficient and good corrosion resistance, can reduce the friction loss of the valve during operation, and has high wear resistance.

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

[0022] 1. In the utility model, the wear-resistant self-sealing gate valve plays a role in preventing the invasion of foreign substances through the protective layer, and can withstand a certain friction and impact force, reducing the damage and wear to the valve body. The protective layer has good corrosion resistance and low friction coefficient, which can reduce the friction loss of the valve body during operation and extend the service life.

[0023] 2. In the utility model, by adopting the design of connecting pipe and flange, the two sides of the valve body can achieve self-sealing. This design can effectively prevent leakage and improve the sealing performance of the valve. The connecting block and the gate can achieve self-sealing function to avoid fluid leakage and environmental pollution.

[0024] 3. In the utility model, the filter cotton can absorb and fix the suspended matter to improve the filtering effect, while the filter net can effectively filter the large particles in the liquid to ensure the normal flow of the fluid. This design can prevent particles and impurities from entering the valve body and protect the internal parts of the valve body from damage. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0027] Figure 3A top view of a wear-resistant self-sealing gate valve proposed by the utility model;

[0028] Figure 4 The utility model is a side view of a wear-resistant self-sealing gate valve.

[0029] Legend:

[0030] 1. Valve body; 2. Connecting pipe; 3. Flange; 4. Protection module; 401. Protection layer; 402. Protection layer; 5. Screw rod; 6. Rotating disk; 7. Gate; 8. Filter module; 801. Filter net; 802. Filter cotton; 9. Connecting block; 10. Placement box; 11. Valve chamber. 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 wear-resistant self-sealing gate valve, including a valve body 1, a connecting pipe 2 is provided at the center of both side walls of the valve body 1, a flange 3 is provided on one side wall of the two connecting pipes 2, a protective module 4 is provided on the inner side wall of the valve body 1, a valve cavity 11 is provided at the center of the inner center of the valve body 1, a gate plate 7 is provided at both sides of the inner center of the valve cavity 11, a connecting block 9 is provided on one side wall of the two gate plates 7, a placement box 10 is provided at the center of the upper end surface of the valve body 1, a spiral rod 5 is provided at the center of the upper end surface of the placement box 10, and a rotating The disk 6 and the protection module 4 are both provided with filtering modules 8 at both sides of the inner center. When the gate valve is in a closed state, the gate plate 7 can be moved up and down by the coordinated action of the rotating disk 6 and the spiral rod 5, so as to control the opening and closing of the valve. The gate valve can be conveniently connected to the pipeline system through the connecting pipe 2 and the flange 3 to ensure the sealing of the pipeline system. The filtering module 8 can effectively filter impurities and particulate matter in the fluid, protect the internal components of the gate valve, reduce the wear of the gate plate 7 and the sealing surface, and extend the service life.

[0033] The protection module 4 includes a protection layer 401 and a protection layer 402. The protection layer 401 is sleeved on the inner wall of the valve body 1, and the protection layer 402 is sleeved on the inner wall of the protection layer 401. The protection layer 401 plays a role in preventing the invasion of foreign substances. It can withstand a certain friction and impact force and reduce the damage and wear to the valve body 1. The protection layer 402 increases the protection layer 402 times of the valve body 1. The protection layer 402 has good corrosion resistance and low friction coefficient, which can reduce the friction loss of the valve body 1 during operation and extend the service life.

[0034] The filter module 8 includes a filter screen 801 and filter cotton 802. The filter cotton 802 is arranged inside the protection module 4. The filter screen 801 is arranged inside the protection module 4 on one side of the filter cotton 802. The filter cotton 802 filters out particulate matter and impurities in the fluid to prevent them from entering the valve body 1, thereby protecting the internal components of the valve body 1 from damage. The filter cotton 802 is made of a material with strong water absorption, which can absorb and fix suspended matter and improve the filtering effect. The filter screen 801 effectively filters large particles in the liquid. The filter screen 801 has a fine mesh that can block the entry of large particles while ensuring the normal flow of the fluid.

[0035] One side wall of the two flanges 3 is provided with four threaded holes arranged in a ring shape, and the threaded holes can be used to install bolts or nuts to firmly connect the flange 3 with other equipment to ensure the stability and sealing of the valve body 1. The filter screen 801 is made of stainless steel. Stainless steel has excellent corrosion resistance and high strength, and can maintain stability and durability in various working environments. One end of the spiral rod 5 passes through the upper end face of the placement box 10, the upper end face of the valve body 1, the upper end face of the valve cavity 11 and the upper end face of the connecting block 9 in sequence to the lower end of the connecting block 9. Through the penetration of the spiral rod 5, the close connection between the various components can be ensured to achieve the normal operation and control of the valve body 1. The protective layer 401 is made of ceramic coating. Ceramics have excellent hardness and wear resistance, and can effectively protect the valve body 1 from the influence and damage of the external environment. The protective layer 402 is made of polytetrafluoroethylene. Polytetrafluoroethylene has a low friction coefficient and good corrosion resistance, can reduce the friction loss of the valve during operation, and has high wear resistance.

[0036] Working principle: When the gate valve is in the closed state, the gate plate 7 can be moved up and down through the coordinated action of the rotating disk 6 and the spiral rod 5, thereby controlling the opening and closing of the valve. The gate valve can be conveniently connected to the pipeline system through the connecting pipe 2 and the flange 3 to ensure the sealing of the pipeline system. The protective layer 401 plays a role in preventing the invasion of foreign substances. It can withstand a certain amount of friction and impact force, reducing damage and wear to the valve body 1. The protective layer 402 increases the protective layer 402 of the valve body 1. The protective layer 402 has good corrosion resistance and low friction coefficient, which can reduce the friction loss of the valve body 1 during operation. Consumption, extend service life, filter module 8, which can effectively filter impurities and particulate matter in the fluid, filter cotton 802 filters out particulate matter and impurities in the fluid, prevents them from entering the valve body 1, thereby protecting the internal components of the valve body 1 from damage, filter cotton 802 is made of highly absorbent material, can adsorb and fix suspended matter, improve the filtering effect, filter net 801 effectively filters large particles in the liquid, filter net 801 has fine mesh to block the entry of large particles, while ensuring the normal flow of the fluid, protecting the internal components of the gate valve, while reducing the wear on the gate plate 7 and the sealing surface, and extending the service life.

[0037] 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 wear-resistant self-sealing gate valve, comprising a valve body (1), characterized in that: A connecting pipe (2) is provided at the center of both side walls of the valve body (1), and a flange (3) is provided on one side wall of each of the two connecting pipes (2). A protective module (4) is provided on the inner side wall of the valve body (1). A valve cavity (11) is provided at the center of the interior of the valve body (1), and gate plates (7) are provided at both sides of the center of the interior of the valve cavity (11). A connecting block (9) is provided on one side wall of each of the two gate plates (7). A placement box (10) is provided at the center of the upper end surface of the valve body (1), and a spiral rod (5) is provided at the center of the upper end surface of the placement box (10). A rotating disk (6) is provided at the center of the upper end surface of the spiral rod (5), and a filter module (8) is provided at both sides of the center of the interior of the protective module (4).

2. A wear-resistant self-sealing gate valve according to claim 1, characterized in that: The protection module (4) comprises a protection layer (401) and a protection layer (402), wherein the protection layer (401) is sleeved on the inner wall of the valve body (1), and the protection layer (402) is sleeved on the inner wall of the protection layer (401).

3. The wear-resistant self-sealing gate valve according to claim 1, characterized in that: The filter module (8) comprises a filter net (801) and filter cotton (802), wherein the filter cotton (802) is arranged inside the protection module (4), and the filter net (801) is arranged inside the protection module (4) on one side of the filter cotton (802).

4. The wear-resistant self-sealing gate valve according to claim 1, characterized in that: One side wall of the two flanges (3) is provided with four threaded holes arranged in a circular shape.

5. The wear-resistant self-sealing gate valve according to claim 3, characterized in that: The filter screen (801) is made of stainless steel.

6. The wear-resistant self-sealing gate valve according to claim 1, characterized in that: One end of the spiral rod (5) sequentially passes through the upper end surface of the placement box (10), the upper end surface of the valve body (1), the upper end surface of the valve cavity (11) and the upper end surface of the connecting block (9) to reach the lower end of the connecting block (9).

7. The wear-resistant self-sealing gate valve according to claim 2, characterized in that: The material of the protective layer (401) is a ceramic coating.

8. The wear-resistant self-sealing gate valve according to claim 2, characterized in that: The material of the protective layer (402) is polytetrafluoroethylene.

Images