Corrosion-resistant and high-temperature-resistant sealing ball valve

Abstract

The utility model relates to the technical field of ball valves, and discloses a corrosion-resistant and high-temperature-resistant sealing ball valve which comprises a left valve body and a right valve body, the left valve body and the right valve body are connected in a sealing mode, cooling channels are formed in the valve walls of the left valve body and the right valve body respectively, one end of each cooling channel is a liquid inlet, and the other end of each cooling channel is a liquid outlet. Wherein the cooling channel is internally provided with a heat conduction piece, and the heat conduction piece is arranged in the whole cooling channel in a communicating mode; the inner wall of the left valve body and the inner wall of the right valve body are both coated with protective coatings, the protective coatings make direct contact with fluid in the ball valve, the ball valve is effectively prevented from being deformed or damaged due to high temperature through the cooling channel, the structural stability and normal operation of the ball valve under the high-temperature working condition are guaranteed, reliable protection can be provided for the ball valve through the protective coatings, and the service life of the ball valve is prolonged. And the ball valve can stably work in a corrosive environment, so that the service life of the ball valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a corrosion-resistant and high-temperature-resistant sealing ball valve. Background Art

[0002] A sealed ball valve is a valve used to control fluid flow. Its core component is a sphere with a circular channel running through it. When the channel aligns with the pipe, fluid flows smoothly through it, and the valve is open. When the ball is rotated 90 degrees, with the channel perpendicular to the pipe, the flow is blocked and the valve is closed. The key to a sealed ball valve lies in its excellent sealing performance, which is primarily achieved through close contact between the ball and the valve seat.

[0003] The Chinese patent announcement number CN220523385U discloses a sealed ball valve, including a sealed ball valve body, wherein sealing tubes are installed in the openings of the tube bodies at both ends of the sealed ball valve body, one end of the sealing tube protrudes out of the tube body and is exposed, the inner diameter of the sealing tube is gradually reduced from the inside to the outside, and the inside of the sealing tube is provided with an extrusion ring for holding the sealing tube open, and the inside of the sealing tube is also provided with a push tube for pushing the extrusion ring, the outer wall surface of the tube body at both ends of the sealed ball valve body is provided with a plurality of strip openings in an annular structure, the outer ring surface of the push tube is provided with a push block facing the strip opening, one end of the push block extends to the outside through the strip opening, and the outside of the tube body is provided with an adjusting shell for sealing the push block and the strip cover.

[0004] The above patent can solve the corresponding technical problems and increase the sealing and safety between the ball valve and the pipeline. However, the above-mentioned sealed ball valve lacks a cooling mechanism during use. In many industrial processes, such as petroleum refining, chemical synthesis, power generation, etc., the fluid is often in a high-temperature state. The high-temperature environment will cause the valve body material of the ball valve to expand, affecting the mechanical properties and sealing performance of the ball valve. At the same time, long-term exposure to high temperature may also cause structural changes in the valve body and internal components, reducing the service life and reliability of the ball valve. In addition, the fluids in these industrial fields are often highly corrosive. The corrosion problem will not only destroy the structural integrity of the ball valve and weaken its mechanical strength, but also affect the sealing performance, greatly increasing the risk of leakage. Once the ball valve corrodes and leaks, the corrosive fluid leaks into the surrounding environment, causing harm to equipment, factory buildings and operators, and may also pollute the environment, resulting in huge economic losses and environmental problems.

[0005] In order to meet the increasingly stringent operating conditions in the industrial field, there is an urgent need for a sealing ball valve that has both excellent high-temperature resistance and effective corrosion resistance to ensure long-term stable and reliable operation in high-temperature and highly corrosive environments. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a corrosion-resistant and high-temperature resistant sealing ball valve to solve the technical problem that the sealing ball valve in the prior art has poor corrosion resistance and high-temperature resistance during use.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A corrosion-resistant and high-temperature resistant sealed ball valve comprises: a left valve body and a right valve body, the left valve body and the right valve body being sealedly connected, cooling channels being respectively opened inside the valve walls of the left valve body and the right valve body, one end of the cooling channel being a liquid inlet and the other end being a liquid outlet; wherein a heat conducting member is installed inside the cooling channel, and the heat conducting member is arranged throughout the interior of the cooling channel; wherein a protective coating is applied on the inner walls of the left valve body and the right valve body, and the protective coating is in direct contact with the fluid in the ball valve.

[0009] As a preferred technical solution, it also includes a first connecting pipe and a second connecting pipe;

[0010] Wherein, one end of the first connecting pipe is fixedly connected to the liquid inlet on the left valve body, and the other end is fixedly connected to the liquid inlet on the right valve body, and the middle part of the first connecting pipe is fixedly connected to the water inlet pipe;

[0011] One end of the second connecting pipe is fixedly connected to the liquid outlet on the left valve body, and the other end is fixedly connected to the liquid outlet on the right valve body. The middle part of the second connecting pipe is fixedly connected to the water outlet pipe.

[0012] As a preferred technical solution, the heat conducting member includes a heat conducting wire rod, and the heat conducting wire rod is fixedly mounted on the inner wall of the cooling channel;

[0013] The heat conducting wire rod is a copper rod.

[0014] As a preferred technical solution, the inner wall of the cooling channel is coated with a thermal conductive coating, and the thermal conductive coating is a graphene coating.

[0015] As a preferred technical solution, the protective coating includes a corrosion-resistant layer and a wear-resistant layer, the corrosion-resistant layer is coated on the inner walls of the left valve body and the right valve body, and the wear-resistant layer is coated on the surface of the corrosion-resistant layer;

[0016] The corrosion-resistant layer is an epoxy ceramic coating, and the wear-resistant layer is a PVD coating.

[0017] As a preferred technical solution, the coating thickness of the corrosion-resistant layer and the wear-resistant layer is 200-500 μm.

[0018] As a preferred technical solution, a filter cartridge is fixedly installed on the water inlet pipe, and a filter screen is fixedly installed inside the filter cartridge.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) By designing a cooling channel and installing a heat-conducting element therein, the sealed ball valve of the utility model can effectively remove heat generated by high-temperature fluid or the environment through the coolant, preventing the ball valve from being deformed or damaged by high temperatures. This ensures the structural stability and normal operation of the ball valve under high-temperature conditions, significantly improving its high-temperature resistance.

[0021] (2) By applying a protective coating including a corrosion-resistant layer and a wear-resistant layer on the inner wall of the ball valve, these coatings can directly resist the corrosive components in the fluid, providing reliable protection for the ball valve. In particular, the epoxy ceramic coating as the corrosion-resistant layer, which is mainly composed of nano-inorganic compounds, has excellent corrosion resistance and greatly extends the service life of the ball valve in corrosive environments.

[0022] (3) By installing copper heat-conducting rods in the cooling channel and applying a graphene coating as a thermal conductive coating, the present invention further enhances the heat conduction effect. This enables the coolant to more efficiently remove the heat absorbed by the ball valve, thereby improving the heat dissipation efficiency of the entire cooling system.

[0023] (4) By designing the first connecting pipe and the second connecting pipe, the utility model realizes the unified inlet and outlet management of the coolant. This not only facilitates the supply and circulation control of the coolant, but also facilitates the stable operation and maintenance of the entire cooling system.

[0024] (5) The presence of the wear-resistant layer not only enhances the wear resistance of the inner wall of the ball valve, but also, to a certain extent, prevents external substances from damaging the corrosion-resistant layer, indirectly improving the corrosion resistance and overall durability of the ball valve. At the same time, this also reduces the risk of leakage caused by damage to the ball valve and improves safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0026] Figure 1 A three-dimensional diagram of the corrosion-resistant and high-temperature-resistant sealing ball valve of the utility model;

[0027] Figure 2 This is a cross-sectional view of the corrosion-resistant and high-temperature-resistant sealing ball valve of the present invention;

[0028] Figure 3 This is a schematic diagram of the protective coating of the corrosion-resistant and high-temperature-resistant sealed ball valve of the present invention.

[0029] Description of reference numerals:

[0030] 1. Left valve body; 2. Right valve body; 3. Cooling channel; 301. Liquid inlet; 302. Liquid outlet; 4. First connecting pipe; 401. Water inlet pipe; 5. Second connecting pipe; 501. Water outlet pipe; 6. Thermal conductive coating; 7. Thermal conductive wire rod; 8. Corrosion-resistant layer; 9. Wear-resistant layer; 10. Filter cartridge; 1001. Filter screen. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in various embodiments of the present invention to facilitate a better understanding of the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the claims of this application can be achieved.

[0032] Example

[0033] Please refer to Figures 1 to 3 As shown, this embodiment provides a corrosion-resistant and high-temperature resistant sealed ball valve, including: a left valve body 1 and a right valve body 2, the left valve body 1 and the right valve body 2 are sealed and connected, and cooling channels 3 are respectively opened inside the valve walls of the left valve body 1 and the right valve body 2, one end of the cooling channel 3 is a liquid inlet 301, and the other end is a liquid outlet 302; wherein, a heat-conducting part is installed inside the cooling channel 3, and the heat-conducting part is arranged inside the entire cooling channel 3; wherein, the inner walls of the left valve body 1 and the right valve body 2 are coated with a protective coating, and the protective coating is in direct contact with the fluid in the ball valve, and the ball valve is effectively prevented from being deformed or damaged due to high temperature through the cooling channel 3, thereby ensuring the structural stability and normal operation of the ball valve under high-temperature working conditions, and the protective coating can provide reliable protection for the ball valve, so that it can work stably in a corrosive environment, thereby extending the service life of the ball valve.

[0034] Among them, it also includes a first connecting pipe 4 and a second connecting pipe 5; wherein, one end of the first connecting pipe 4 is fixedly connected to the liquid inlet 301 on the left valve body 1, and the other end is fixedly connected to the liquid inlet 301 on the right valve body 2, and the middle part of the first connecting pipe 4 is fixedly connected with a water inlet pipe 401; wherein, one end of the second connecting pipe 5 is fixedly connected to the liquid outlet 302 on the left valve body 1, and the other end is fixedly connected to the liquid outlet 302 on the right valve body 2, and the middle part of the second connecting pipe 5 is fixedly connected with a water outlet pipe 501. The cooling liquid can be simultaneously transported to the cooling channels 3 on the left valve body 1 and the right valve body 2 through the first connecting pipe 4, and the cooling liquid can be simultaneously discharged from the cooling channels 3 on the left valve body 1 and the right valve body 2 through the second connecting pipe 5, so that the cooling liquid can be uniformly fed in and out, which facilitates the supply and circulation control of the cooling liquid and is conducive to the stable operation of the entire cooling system.

[0035] In this embodiment, the coolant enters the interior of the first connecting pipe through the water inlet pipe, and then flows to the interior of the cooling channels on the left valve body and the right valve body through the first connecting pipe branch. The coolant flows inside the cooling channel of the coil structure and takes away heat, effectively preventing the ball valve from being deformed or damaged due to high temperature, and ensuring the structural stability and normal operation of the ball valve under high temperature conditions. In addition, during the flow of the coolant inside the cooling channel, by installing a copper heat conductor rod in the cooling channel, the heat absorbed by the left valve body and the right valve body can be quickly transferred to the coolant, thereby improving the heat dissipation efficiency. The heat conduction effect is further enhanced by the thermal conductive coating, so that the entire cooling system can cope with high temperature conditions more efficiently.

[0036] Among them, the heat conductor includes a heat conducting rod 7, which is fixedly installed on the inner wall of the cooling channel 3; the heat conducting rod 7 is a copper rod. By installing the copper heat conducting rod 7 in the cooling channel 3, the heat absorbed by the left valve body 1 and the right valve body 2 can be quickly transferred to the coolant, thereby improving the heat dissipation efficiency.

[0037] In the above embodiment, effective cooling of the ball valve is achieved by providing cooling channels within the valve walls of the left and right valve bodies and installing heat-conducting components (such as copper heat-conducting rods). Coolant flowing within the cooling channels removes heat generated by the high-temperature fluid or environment from the ball valve, preventing deformation or damage to the ball valve due to high temperatures. Furthermore, the heat-conducting components rapidly transfer heat absorbed by the valve bodies to the coolant, improving heat dissipation efficiency.

[0038] Among them, the inner wall of the cooling channel 3 is coated with a thermal conductive coating 6, which is a graphene coating. The thermal conductive coating 6 further enhances the heat conduction effect, so that the entire cooling system can cope with high temperature conditions more efficiently.

[0039] In the above embodiment, heat conduction is further enhanced by applying a thermally conductive coating (such as a graphene coating) to the inner wall of the cooling channel. The thermally conductive coating can more effectively transfer heat from the valve body to the coolant, making the entire cooling system more efficient in high-temperature conditions, thereby ensuring the structural stability and normal operation of the ball valve under high-temperature conditions.

[0040] Among them, the protective coating includes a corrosion-resistant layer 8 and a wear-resistant layer 9. The corrosion-resistant layer 8 is coated on the inner walls of the left valve body 1 and the right valve body 2, and the wear-resistant layer 9 is coated on the surface of the corrosion-resistant layer 8; the corrosion-resistant layer 8 is an epoxy ceramic coating, and the wear-resistant layer 9 is a PVD coating. The wear-resistant layer 9 can enhance the wear resistance of the inner wall of the ball valve. In addition, it prevents external substances from damaging the corrosion-resistant layer 8 to a certain extent, indirectly improving the corrosion resistance of the ball valve. The corrosion-resistant layer 8 adopts epoxy ceramic coating. The epoxy ceramic coating is mainly composed of nano-inorganic compounds and has good corrosion resistance. It can effectively resist the erosion of the ball valve by corrosive components in the fluid in the ball valve. The combination of the two provides reliable protection for the ball valve, enabling it to work stably in a corrosive environment, thereby extending the service life of the ball valve.

[0041] The coating thickness of the corrosion-resistant layer 8 and the wear-resistant layer 9 is 200-500 μm, preferably 300 μm, which can effectively protect the inner wall of the ball valve and increase the corrosion and high temperature resistance of the ball valve.

[0042] In the above embodiment, protective coatings are applied to the inner walls of the left and right valve bodies, including a corrosion-resistant layer (e.g., epoxy ceramic coating) and a wear-resistant layer (e.g., PVD coating). The corrosion-resistant layer effectively protects the ball valve from erosion by corrosive components in the fluid within the ball valve, while the wear-resistant layer enhances the wear resistance of the ball valve's inner wall and, to a certain extent, prevents damage to the corrosion-resistant layer by foreign substances. The combination of these two provides reliable protection for the ball valve, enabling it to operate stably in corrosive environments and thereby extending its service life.

[0043] Among them, a filter cartridge 10 is fixedly installed on the water inlet pipe 401, and a filter screen 1001 is fixedly installed inside the filter cartridge 10. By installing the filter cartridge 10 on the water inlet pipe 401, the internal filter screen 1001 can filter impurities in the coolant, preventing impurities from entering the cooling channel and causing blockage or adhering to the inner wall of the cooling channel to affect the heat conduction and heat dissipation effects, thereby ensuring the long-term and efficient operation of the cooling system.

[0044] In the above embodiment, a filter cartridge is installed on the water inlet pipe, with a filter screen inside to filter impurities from the coolant. This prevents impurities from entering the cooling channel and causing blockage or adhering to the inner wall of the cooling channel, thereby affecting heat conduction and heat dissipation, thereby ensuring the long-term and efficient operation of the cooling system.

[0045] Working principle: When the ball valve processes high-temperature fluid or is in a high-temperature environment, the water inlet pipe 401 and the water outlet pipe (501) are respectively connected to the circulating cooling system, and the coolant enters the interior of the first connecting pipe 4 from the water inlet pipe 401, and then flows to the interior of the cooling channel 3 on the left valve body 1 and the right valve body 2 through the first connecting pipe 4. The coolant flows in the cooling channel 3 of the coil structure to take away heat. The coolant in the cooling channel 3 on the left valve body 1 and the right valve body 2 enters the circulating cooling system again through the second connecting pipe (5) from the water outlet pipe (501) for cooling treatment, which can effectively prevent the ball valve from being deformed or damaged due to high temperature, and ensure the structural stability and normal operation of the ball valve under high-temperature working conditions. In addition, during the flow of the coolant in the cooling channel 3, by installing a copper heat conductor rod 7 in the cooling channel 3, the heat absorbed by the left valve body 1 and the right valve body 2 can be quickly transferred to the coolant, thereby improving the heat dissipation efficiency. The heat conduction effect is further enhanced by the thermal conductive coating 6, so that the entire cooling system can cope with high-temperature conditions more efficiently.

[0046] When high-temperature fluid passes through the inside of the ball valve, the high-temperature fluid directly contacts the wear-resistant layer 9. The wear-resistant layer 9 can enhance the wear resistance of the inner wall of the ball valve. In addition, it prevents external substances from damaging the corrosion-resistant layer 8 to a certain extent, indirectly improving the corrosion resistance of the ball valve. The corrosion-resistant layer 8 adopts epoxy ceramic coating. The epoxy ceramic coating is mainly composed of nano-inorganic compounds and has good corrosion resistance. It can effectively resist the erosion of the ball valve by the corrosive components in the fluid inside the ball valve. The combination of the two provides reliable protection for the ball valve, enabling it to work stably in a corrosive environment, thereby extending the service life of the ball valve.

[0047] It is worth noting that the circulating cooling system mentioned above is cited from the Chinese patent with the announcement number CN220397971U, and its structure and principle are not described here in detail.

[0048] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A corrosion-resistant and high-temperature-resistant sealed ball valve, comprising a left valve body (1) and a right valve body (2), wherein the left valve body (1) and the right valve body (2) are sealed and connected, and characterized in that: A cooling channel (3) is provided inside the valve wall of the left valve body (1) and the right valve body (2), respectively. One end of the cooling channel (3) is a liquid inlet (301), and the other end is a liquid outlet (302), wherein: A heat conducting member is installed inside the cooling channel (3), and the heat conducting member is arranged throughout the entire cooling channel (3); The inner walls of the left valve body (1) and the right valve body (2) are both coated with a protective coating, and the protective coating is in direct contact with the fluid in the ball valve.

2. A corrosion-resistant and high-temperature-resistant sealing ball valve according to claim 1, characterized in that: It also includes a first connecting pipe (4) and a second connecting pipe (5); One end of the first connecting pipe (4) is fixedly connected to the liquid inlet (301) on the left valve body (1), and the other end is fixedly connected to the liquid inlet (301) on the right valve body (2); the middle part of the first connecting pipe (4) is fixedly connected to a water inlet pipe (401); One end of the second connecting pipe (5) is fixedly connected to the liquid outlet (302) on the left valve body (1), and the other end is fixedly connected to the liquid outlet (302) on the right valve body (2); the middle part of the second connecting pipe (5) is fixedly connected to a water outlet pipe (501).

3. The corrosion-resistant and high-temperature-resistant sealed ball valve according to claim 1, characterized in that: The heat-conducting member comprises a heat-conducting rod (7), and the heat-conducting rod (7) is fixedly mounted on the inner wall of the cooling channel (3); The heat conducting wire rod (7) is a copper rod.

4. The corrosion-resistant and high-temperature-resistant sealed ball valve according to claim 3, characterized in that: The inner wall of the cooling channel (3) is coated with a heat-conducting coating (6), and the heat-conducting coating (6) is a graphene coating.

5. The corrosion-resistant and high-temperature-resistant sealed ball valve according to claim 1, characterized in that: The protective coating comprises a corrosion-resistant layer (8) and a wear-resistant layer (9), wherein the corrosion-resistant layer (8) is coated on the inner walls of the left valve body (1) and the right valve body (2), and the wear-resistant layer (9) is coated on the surface of the corrosion-resistant layer (8); The corrosion-resistant layer (8) is an epoxy ceramic coating, and the wear-resistant layer (9) is a PVD coating.

6. The corrosion-resistant and high-temperature-resistant sealed ball valve according to claim 5, characterized in that: The coating thickness of the corrosion-resistant layer (8) and the wear-resistant layer (9) is 200-500 μm.

7. The corrosion-resistant and high-temperature-resistant sealed ball valve according to claim 2, characterized in that: A filter cartridge (10) is fixedly mounted on the water inlet pipe (401), and a filter screen (1001) is fixedly mounted inside the filter cartridge (10).

Images