A bidirectional hard-seal hemispherical valve

Abstract

This utility model discloses a bidirectional hard-seal hemispherical valve, including a valve seat. An upper housing is fixedly connected to the top of the valve seat. An upper bearing is fixedly connected inside the upper housing. An upper rotating shaft is fixedly connected inside the upper bearing. A ball is fixedly connected to the bottom of the upper rotating shaft. A connecting pipe is fixedly connected to the side of the valve seat. A protrusion is fixedly connected to the inner wall of the connecting pipe. An extension pipe is provided on the side of the connecting pipe. A first screen and a second screen are fixedly connected inside the extension pipe. A clamp is provided on the outer surface of the extension pipe. By setting the protrusion on the inner wall of the connecting pipe, which contacts the edge of the channel inside the ball, the edge of the ball can be protected from wear. The first and second screens intercept impurities in the fluid, extending the service life of the hemispherical valve and improving the sealing effect of the ball, effectively reducing replacement costs.

Description

Technical Field

[0001] This utility model relates to the technical field of hemispherical valve equipment, specifically a bidirectional hard-seal hemispherical valve. Background Technology

[0002] The hemispherical valve is a new type of valve developed to solve the technical challenges of conveying two-phase mixed media such as solutions and slurries. The successful development of the hemispherical valve provides a reliable control valve for solution processes in chemical, petroleum, gas, metallurgical, and electronics industries, addressing the difficulties caused by sedimentation, scaling, and precipitation that affect process flow. It also provides a new and superior product for improving the level of industrial management equipment in my country.

[0003] A bidirectional hard-seal hemispherical valve, disclosed in CN219933008U, includes a housing with a valve rotatably connected inside. A valve stem is connected to the upper end of the valve, passing through the housing. Connecting pipes are threaded to both ends of the housing. One end of each connecting pipe is threaded to a connecting ring inside the housing, and a sealing plug is installed at one end of the connecting ring. The sealing plug fits against the spherical side of the valve. The valve includes a first valve body and a second valve body. A fixing plate is fixedly connected inside the first valve body, with a telescopic rod installed at one end of the fixing plate. A cover plate is installed at one end of the first valve body. This invention achieves sealing through tight contact between the sealing plug and the valve, and further locks the valve and provides a secondary seal by extending a sealing strip into the sealing plug, effectively improving the valve's sealing performance. However, the sphere inside this hemispherical valve is susceptible to impact from the fluid, and impurities in the fluid can damage its edges, negatively impacting the sealing performance and reducing the valve's lifespan. Severely damaged spheres require periodic replacement, resulting in high costs. Utility Model Content

[0004] The purpose of this invention is to provide a bidirectional hard-seal hemispherical valve that can solve the problem of reducing wear on the ball inside the hemispherical valve.

[0005] To achieve the above objectives, a bidirectional hard-seal hemispherical valve is provided, comprising a valve seat, an upper housing fixedly connected to the top of the valve seat, an upper bearing fixedly connected inside the upper housing, an upper rotating shaft fixedly connected inside the upper bearing, and a ball fixedly connected to the bottom of the upper rotating shaft.

[0006] A connecting pipe is fixedly connected to the side of the valve seat, a protrusion is fixedly connected to the inner wall of the connecting pipe, an extension pipe is provided on the side of the connecting pipe, a first screen and a second screen are fixedly connected inside the extension pipe, and a clamp is provided on the outer surface of the extension pipe.

[0007] According to the aforementioned bidirectional hard-seal hemispherical valve, a rotary handle is fixedly connected to the top end of the upper rotating shaft.

[0008] According to the aforementioned bidirectional hard-seal hemispherical valve, the ball has an internal channel located inside the valve seat.

[0009] According to the aforementioned bidirectional hard-seal hemispherical valve, a lower rotating shaft is fixedly connected to the bottom of the ball, and a lower bearing is fixedly connected to the outer surface of the lower rotating shaft.

[0010] According to the bidirectional hard-seal hemispherical valve, a lower housing is fixedly connected to the outer surface of the lower bearing, and the lower housing is located at the bottom of the valve seat.

[0011] According to the aforementioned bidirectional hard-seal hemispherical valve, a groove is provided on the side of the connecting pipe.

[0012] According to the aforementioned bidirectional hard-seal hemispherical valve, the protrusion is annular and located on the side of the channel.

[0013] According to the bidirectional hard-seal hemispherical valve, a wing plate is fixedly connected to the side of the clamp.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This bidirectional hard-seal hemispherical valve features a protrusion mounted on the inner wall of the connecting pipe, which contacts the edge of the channel inside the ball. A first screen and a second screen are installed to intercept impurities in the fluid, protecting the edge of the ball from wear.

[0016] This bidirectional hard-seal hemispherical valve, by connecting an extension pipe to a connecting pipe and then connecting the extension pipe to other pipes with a clamp, can filter impurities inside the fluid, effectively reduce the wear of the ball by the fluid, extend the service life of the hemispherical valve, improve the sealing effect of the ball, and effectively reduce the replacement cost.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of a bidirectional hard-seal hemispherical valve according to the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the valve seat of a bidirectional hard-seal hemispherical valve according to this utility model.

[0021] Figure 3 This is a schematic diagram of the extension tube of a bidirectional hard-seal hemispherical valve according to the present invention.

[0022] In the diagram: 1. Valve seat; 2. Upper housing; 3. Upper bearing; 4. Upper shaft; 5. Ball; 501. Channel; 6. Lower shaft; 7. Lower bearing; 8. Lower housing; 9. Handle; 10. Connecting pipe; 1001. Slot; 11. Protrusion; 12. Extension pipe; 13. First screen; 14. Second screen; 15. Clamp; 16. Wing plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a technical solution: a bidirectional hard-seal hemispherical valve, including a valve seat 1, an upper housing 2 fixedly connected to the top of the valve seat 1, an upper bearing 3 fixedly connected inside the upper housing 2, which moves together with the lower bearing 7 and cooperates with the handle 9 to make the ball 5 rotate inside the valve seat 1, an upper rotating shaft 4 fixedly connected inside the upper bearing 3, and the ball 5 fixedly connected to the bottom of the upper rotating shaft 4. By controlling the rotation of the ball 5, the flow of fluid in the hemispherical valve is controlled.

[0025] A connecting pipe 10 is fixedly connected to the side of the valve seat 1. The inner wall of the connecting pipe 10 is made of high-strength steel, a wear-resistant material, which can withstand the impact of fluid. A protrusion 11, made of alumina ceramic, is fixedly connected to the inner wall of the connecting pipe 10 and installed on the side of the channel 501 to protect the edge of the channel 501 from wear and effectively improve the service life of the ball valve. An extension pipe 12 is provided on the side of the connecting pipe 10. A first screen 13 and a second screen 14 are fixedly connected inside the extension pipe 12. The double screen is installed to intercept larger impurities in the fluid. A clamp 15 is provided on the outer surface of the extension pipe 12 to connect the extension pipe 12 to other pipes, which facilitates disassembly and installation and effectively extends the overall service life of the ball valve.

[0026] A handle 9 is fixedly connected to the top of the upper rotating shaft 4. Holding the handle 9 causes the ball 5 to rotate, controlling the flow of fluid within the valve seat 1. A channel 501 is opened inside the ball 5 and located inside the valve seat 1. A lower rotating shaft 6 is fixedly connected to the bottom of the ball 5. A lower bearing 7 is fixedly connected to the outer surface of the lower rotating shaft 6. A lower housing 8 is fixedly connected to the outer surface of the lower bearing 7 and located at the bottom of the valve seat 1. A slot 1001 is opened on the side of the connecting pipe 10. A positioning block on the side of the extension pipe 12 is installed inside the slot 1001. A magnet is installed inside the positioning block and attracts the magnet in the slot 1001, ensuring the connection between the extension pipe 12 and the connecting pipe 10. The protrusion 11 is annular and located on the side of the channel 501. A wing plate 16 is fixedly connected to the side of the clamp 15. The wing plate 16 is connected and fixed by bolts, so that the clamp 15 connects and fixes the extension pipe 12 to other pipes.

[0027] Working principle: In use, first determine the flow direction of the fluid, insert the positioning block on the side of the extension pipe 12 into the slot 1001 on the side of the connecting pipe 10, so that the extension pipe 12 and the connecting pipe 10 are connected. The top of the positioning block is equipped with a magnet, which attracts the magnet in the slot 1001, providing another layer of protection for the connection between the extension pipe 12 and the connecting pipe 10, and preventing the extension pipe 12 from slipping out and affecting the use of the hemispherical valve. Then connect the connecting pipe 10 at the other end of the valve seat 1 to the pipeline, and then connect and fix the wing plate 16 on the side of the clamp 15 with bolts. The other end of the extension pipe 12 is connected to other pipes. With the connection complete, the hemispherical valve installation is finished. Hold the handle 9 and turn the channel 501 inside the ball 5 towards the connecting pipe 10. When the fluid flows through the extension pipe 12, larger impurities inside the fluid will remain in the first screen 13 and the second screen 14. Because a protrusion 11 is installed inside the connecting pipe 10, it avoids small impurities in the fluid from impacting the edge of the channel 501, reducing wear on the edge of the ball and extending the service life of the hemispherical valve. After the hemispherical valve is used, remove the extension pipe 12 and clean the screen inside the extension pipe 12. It can be used multiple times, reducing costs.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A bidirectional hard-seal half-ball valve comprising a valve seat (1), characterized in that, The valve seat (1) is fixedly connected to the top of the upper housing (2), the upper bearing (3) is fixedly connected inside the upper housing (2), the upper shaft (4) is fixedly connected inside the upper bearing (3), and the ball (5) is fixedly connected to the bottom of the upper shaft (4). A connecting pipe (10) is fixedly connected to the side of the valve seat (1), a protrusion (11) is fixedly connected to the inner wall of the connecting pipe (10), an extension pipe (12) is provided on the side of the connecting pipe (10), a first screen (13) and a second screen (14) are fixedly connected inside the extension pipe (12), and a clamp (15) is provided on the outer surface of the extension pipe (12).

2. A bi-directional hard-seal half-ball valve as defined in claim 1, wherein: The top end of the upper rotating shaft (4) is fixedly connected to a rotating handle (9).

3. A bi-directional hard-seal half-ball valve as defined in claim 1, wherein: The ball (5) has a channel (501) inside, located inside the valve seat (1).

4. A bidirectional hard-seal hemispherical valve as described in claim 1, characterized in that: The bottom of the sphere (5) is fixedly connected to a lower rotating shaft (6), and the outer surface of the lower rotating shaft (6) is fixedly connected to a lower bearing (7).

5. A bidirectional hard-seal hemispherical valve as described in claim 4, characterized in that: The lower bearing (7) is fixedly connected to the outer surface of the lower housing (8), which is located at the bottom of the valve seat (1).

6. A bidirectional hard-seal hemispherical valve as described in claim 1, characterized in that: The side of the connecting pipe (10) is provided with a slot (1001).

7. A bidirectional hard-seal hemispherical valve as described in claim 1, characterized in that: The protrusion (11) is ring-shaped and located on the side of the channel (501).

8. A bidirectional hard-seal hemispherical valve as described in claim 1, characterized in that: The side of the clamp (15) is fixedly connected to a wing plate (16).

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