Self-adjusting sealing high-temperature-resistant ball valve

Abstract

The utility model discloses a self-adjusting sealing high-temperature-resistant ball valve which comprises a ball valve body, a ball core is arranged in the ball valve body, a through groove is formed in the ball core, a first sealing ring is arranged on the outer side of the ball core, a first sealing groove is formed in the inner side of the ball valve body, and supporting seats are arranged at the upper end and the lower end of the ball core. The supporting seat is located in the ball valve body, a second sealing ring is installed on the supporting seat, the second sealing ring is located in a second sealing groove, and the second sealing groove is formed in the upper surface and the lower surface of the ball core. According to the self-adjusting sealing high-temperature-resistant ball valve, the ball valve body and the ball core are made of high-temperature-resistant materials, the structure stability and the performance reliability can be kept in the high-temperature environment, the problem that a belleville spring is prone to being affected by high temperature is solved, and the sealing performance of the ball core and the ball valve body is greatly improved due to the fact that the first sealing ring and the second sealing ring are heated to expand; the overall structure is simple, and the problem that maintenance is inconvenient due to the complex structure is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ball valve, concretely is a kind of self-regulating sealing high temperature resistant ball valve. BACKGROUND

[0002] Ball valve is a kind of common fluid flow control equipment, it controls the flow of medium by a ball-shaped valve core, and the medium flows or stops by rotating the ball, widely used in industrial pipeline, water supply and drainage system, petrochemical, natural gas and other fields, but the ball valve of prior art still has certain defects in use, in the use process, since the ball of ball valve is floating, under the action of medium pressure, ball and valve seat are easy to produce gap, so as to easily produce the leakage of medium.

[0003] In order to overcome the above-mentioned defects, the prior art (the patent number of China is CN207634738U, the announcement date is 2018.07.20) a kind of high temperature resistant floating ball valve, including first valve body, floating ball, offset slot, second valve body and fastening stud, the first valve body is connected between second valve body by fastening stud, first valve body and the side wall of fastening stud both ends are equipped with limit hole, the outer wall on the top end of second valve body is installed with valve body fixing disc, by being equipped with offset slot and spherical cavity respectively in the interior of first valve body and second valve body, offset slot and spherical cavity are installed butterfly spring at one end, and by being equipped with valve seat on the surface of floating ball, the sealing function of floating ball and valve seat is realized, so as to avoid the leakage of medium under the closed state of floating ball valve, by installing valve body fixing disc on the outer wall on the top end of second valve body, the center position at the top end of valve body fixing disc is fixed with maintenance disc, fixed bolt is equipped at the surface position at the top end of maintenance disc, screw hole is equipped at the edge position at the top end of valve body fixing disc, improve the convenience degree of floating ball valve maintenance, thereby prolong the service life of floating ball valve, simultaneously by being equipped with rotary hand lever laterally at the top end of adjusting rod, screw groove is equipped at the center position at the top end of rotary hand lever, locking hand wheel is equipped at the center position at the top end of adjusting rod, and by being hinged rotary handle on the side wall on the one end of rotary hand lever, the adjusting function of rotary hand lever is realized, improve the comfort degree when floating ball valve is used, the utility model not only improves the convenience degree of floating ball valve maintenance, improves the comfort degree when floating ball valve is used, and avoids the leakage of medium under the closed state of floating ball valve.

[0004] Although the prior art can extrude floating ball by butterfly spring inside valve body, to avoid the leakage of medium under the closed state of floating ball valve, but in the working process, the stability of butterfly spring is poor, easy to make floating ball produce deviation, and butterfly spring loses elasticity under high temperature environment, thereby affecting the sealing performance of floating ball, the structure of valve body fixing disc, maintenance disc, adjusting rod, rotary hand lever and locking hand wheel makes the installation and maintenance of valve more complex, possibly increase production cost and maintenance difficulty.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing self-regulating sealing high-temperature resistant ball valve. Therefore, we proposed that the self-regulating sealing high-temperature resistant ball valve can effectively solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a self-adjusting, high-temperature resistant ball valve with excellent sealing performance, in order to solve the problems mentioned in the background art. Currently, the floating ball valve on the market is squeezed by a butterfly spring inside the valve body to prevent leakage of the medium when the floating ball valve is closed. However, the butterfly spring has poor stability and is prone to causing the floating ball to deviate. Furthermore, the butterfly spring is prone to losing elasticity in high-temperature environments, thereby affecting the sealing performance of the floating ball. The overall structure of the valve body fixing plate, inspection plate, adjusting rod, rotating hand lever, and locking handwheel makes the installation and maintenance of the valve more complicated, which may increase production costs and maintenance difficulty.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-adjusting, high-temperature resistant ball valve with sealing properties, comprising a ball valve body, a ball core disposed inside the ball valve body, a through groove formed on the ball core, a first pipe connected to both ends of the ball valve body via a sealing element, a first sealing ring disposed on the outer side of the ball core, a first sealing groove formed on the inner side of the ball valve body, the first sealing ring being adapted to the first sealing groove, support seats disposed at the upper and lower ends of the ball core, the support seats being located inside the ball valve body, a second sealing ring mounted on the support seats, the second sealing ring being located inside the second sealing groove, the second sealing groove being formed on the upper and lower surfaces of the ball core.

[0008] Preferably, a valve stem is provided on the ball core, the valve stem is connected through to the upper end of the ball valve body, and a sealing packing is provided on the outside of the valve stem.

[0009] Preferably, the first pipe is connected to the second pipe via a flange structure, and a protective component is provided on the outside of the connection between the first pipe and the second pipe.

[0010] Preferably, the protective assembly includes an auxiliary lower cover and an auxiliary upper cover installed at the connection between the first pipe and the second pipe, and the auxiliary lower cover and the auxiliary upper cover are connected by a bolt structure.

[0011] Preferably, the auxiliary upper cover is threadedly connected to an auxiliary cap, and the auxiliary lower cover and the auxiliary upper cover are provided with water-stopping particles inside.

[0012] Preferably, an auxiliary plate is installed at the bottom of the lower auxiliary cover, a guide rod is installed inside the upper auxiliary cover, and a lifting plate is sleeved on the outside of the guide rod.

[0013] Preferably, a spring is provided on the upper surface of the lifting plate, the spring is sleeved on the outside of the guide rod, and a first contact piece is provided on the upper surface of the lifting plate.

[0014] Preferably, a second contact piece is installed inside the top of the auxiliary cover, the first contact piece and the second contact piece are adapted to each other, and an alarm is installed on the auxiliary cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This self-adjusting, high-temperature resistant ball valve has a ball valve body and a ball core made of high-temperature resistant material, which can maintain structural stability and reliable performance in high-temperature environments. It reduces the problem of the butterfly spring being easily affected by high temperatures. Furthermore, the thermal expansion of the first and second sealing rings greatly improves the sealing performance between the ball core and the ball valve body. The overall structure is simple, reducing the problem of inconvenient maintenance caused by complex structures. The specific details are as follows:

[0016] (1) The ball valve body and the ball core are made of high temperature resistant material, which can maintain structural stability and reliable performance in high temperature environment, avoid material deformation and damage caused by high temperature, ensure the safety of medium transportation, reduce the problem that the butterfly spring is easily affected by high temperature, and when high temperature medium is transported inside the ball valve body, the expansion of the first sealing ring and the second sealing ring greatly improves the sealing performance between the ball core and the ball valve body.

[0017] (2) By using the auxiliary lower cover and auxiliary upper cover of the protective components to cover the connection between the first pipe and the second pipe, the connection is protected, avoiding damage to the connection caused by external factors and thus preventing water leakage, thereby improving the service life of the device.

[0018] (3) When a gap leaks at the connection between the first pipe and the second pipe, the water-stopping particles inside the auxiliary lower cover and the auxiliary upper cover will expand rapidly when they come into contact with water, which will help to block the gap and stop the leakage in a timely and effective manner, making it convenient for maintenance personnel to come and perform maintenance operations.

[0019] (4) The lifting plate is moved upward by the water-stopping particles, so that the first contact piece at the top of the lifting plate comes into contact with the second contact piece at the top of the auxiliary cover. The alarm will then sound, which can promptly remind the staff that there is a water leak in the pipeline, making it easier to take repair measures quickly.

[0020] (5) Excess water inside the auxiliary lower cover and auxiliary upper cover will overflow through the auxiliary plate, reducing the damage caused by the continuous expansion of the water-stopping particles, ensuring the integrity of the auxiliary lower cover and auxiliary upper cover structure, and extending the overall service life of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top view of the overall structure of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the ball valve body of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the ball core after rotation;

[0025] Figure 5 This is a schematic diagram of the overall side view structure of this utility model;

[0026] Figure 6 This is a cross-sectional view of the auxiliary upper cover and auxiliary lower cover of this utility model;

[0027] Figure 7 This utility model Figure 6 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Ball valve body; 2. Seal; 3. First pipe; 4. Valve stem; 5. Ball core; 6. Through groove; 7. Sealing packing; 8. First sealing ring; 9. First sealing groove; 10. Support seat; 11. Second sealing ring; 12. Second sealing groove; 13. Second pipe; 14. Auxiliary lower cover; 15. Auxiliary upper cover; 16. Auxiliary cover; 17. Water-stopping particles; 18. Auxiliary plate; 19. Lifting plate; 20. Guide rod; 21. Spring; 22. First contact plate; 23. Second contact plate; 24. Alarm. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: In this example, the ball valve body 1 and the ball core 5 are made of high-temperature resistant material, which can maintain structural stability and reliable performance in high-temperature environments, avoid material deformation and damage caused by high temperatures, ensure the safety of media transportation, and reduce the problem of the butterfly spring being easily affected by high temperatures. Figures 1-4The technical solution shown includes a ball valve body 1, inside which is a ball core 5. A through groove 6 is formed on the ball core 5. Both ends of the ball valve body 1 are connected to a first pipe 3 via a sealing element 2. A first sealing ring 8 is provided on the outer side of the ball core 5, and a first sealing groove 9 is formed on the inner side of the ball valve body 1. The first sealing ring 8 and the first sealing groove 9 are adapted to each other. Support seats 10 are provided at the upper and lower ends of the ball core 5, located inside the ball valve body 1. A second sealing ring 11 is installed on the support seat 10, located inside a second sealing groove 12. A valve stem 4 is installed on the upper and lower surfaces of the ball core 5, and is connected to the upper end of the ball valve body 1. A sealing packing 7 is installed on the outside of the valve stem 4. The ball valve body 1 is connected to the first pipes 3 at both ends via a sealing element 2. When the valve stem 4 is used, it drives the ball core 5 to rotate inside the ball valve body 1, causing the through groove 6 on the ball core 5 to connect with the first pipe 3, facilitating the transmission of the medium. The ball valve body 1 and the ball core 5 are made of high-temperature resistant material, ensuring structural stability and reliable performance under high-temperature environments, preventing material deformation and damage due to high temperatures, and protecting the medium. The safety of the ball valve is improved by reducing the impact of high temperatures on the butterfly spring. Furthermore, a sealing packing 7 is installed on the outside of the valve stem 4, effectively preventing media leakage from the valve stem 4 and improving the overall sealing performance of the ball valve body 1. When the ball core 5 continues to rotate, making the through groove 6 perpendicular to the first pipe 3, the first sealing ring 8 on the side of the ball core 5 seals the first sealing groove 9 inside the ball valve body 1, ensuring that the media cannot leak when the ball valve body 1 is closed, thus enhancing the sealing performance of the ball valve body 1. The sealing performance is improved, and the ball core 5 rotates on the support base 10. The second sealing ring 11 on the support base 10 rotates inside the second sealing groove 12 opened on the upper and lower surfaces of the ball core 5, which further improves the sealing performance and stability of the ball core 5 when it rotates, reduces the risk of medium leakage, and the first sealing ring 8 and the second sealing ring 11 expand when heated. When high temperature medium is transported inside the ball valve body 1, the expansion of the first sealing ring 8 and the second sealing ring 11 greatly improves the sealing performance between the ball core 5 and the ball valve body 1. The overall structure is simple, reducing the problem of inconvenient maintenance caused by complex structures.

[0031] Example 2: In this example, the water-stopping particles 17 expand rapidly upon contact with water, facilitating the sealing of gaps and enabling emergency repairs. This effectively and promptly stops leaks. Specifically, as shown... Figure 5 and Figure 6As shown, the first pipe 3 is connected to the second pipe 13 via a flange structure. A protective assembly is provided on the outside of the connection between the first pipe 3 and the second pipe 13. The protective assembly includes an auxiliary lower cover 14 and an auxiliary upper cover 15 installed at the connection between the first pipe 3 and the second pipe 13. The auxiliary lower cover 14 and the auxiliary upper cover 15 are connected by bolts. An auxiliary cover 16 is threaded onto the auxiliary upper cover 15. Water-stopping particles 17 are provided inside the auxiliary lower cover 14 and the auxiliary upper cover 15. The first pipe 3 is connected to the second pipe 13 via a flange structure. At this time, the auxiliary lower cover 14 and the auxiliary upper cover 15 can be fitted onto the first pipe. The connection between the first pipe 3 and the second pipe 13 is protected to prevent external factors from damaging the connection and causing leakage. The auxiliary cover 16 is unscrewed, and water-stopping particles 17 are poured into the auxiliary lower cover 14 and auxiliary upper cover 15. Since the water-stopping particles 17 have strong water absorption, when a gap occurs at the connection between the first pipe 3 and the second pipe 13 and leaks, the water-stopping particles 17 will expand rapidly when they come into contact with water, which can easily block the gap and allow for emergency repairs. This can stop the leakage in a timely and effective manner, reduce the waste of resources and safety hazards caused by leakage, and facilitate maintenance personnel to come to the scene for maintenance operations.

[0032] Example 3: In this example, the alarm 24 activates an alarm function to promptly alert staff to a leak in the pipes, facilitating quick repair measures. Specifically, as follows... Figures 5-7 As shown, an auxiliary plate 18 is installed at the bottom of the lower auxiliary cover 14, a guide rod 20 is installed inside the upper auxiliary cover 15, a lifting plate 19 is sleeved on the outside of the guide rod 20, a spring 21 is provided on the upper surface of the lifting plate 19, the spring 21 is sleeved on the outside of the guide rod 20, a first contact piece 22 is provided on the upper surface of the lifting plate 19, a second contact piece 23 is installed at the top inside the upper auxiliary cover 15, the first contact piece 22 and the second contact piece 23 are adapted to each other, and an alarm 24 is installed on the upper auxiliary cover 15. When a gap occurs at the connection between the first pipe 3 and the second pipe 13 and leaks water, the water will cause the water-stopping particles 17 to expand. At this time, the lifting plate 19 is moved upward by the water-stopping particles 17, causing the guide rod 20 to expand. When the spring 21 on the outside of the rod 20 is compressed, the first contact piece 22 at the upper end of the lifting plate 19 comes into contact with the second contact piece 23 at the top inside the auxiliary upper cover 15, causing the alarm 24 to sound an alarm. This promptly alerts staff to any water leakage in the pipes, facilitating quick repairs. Excess water overflows through the auxiliary piece 18 at the bottom of the auxiliary lower cover 14, reducing damage caused by the continuous expansion of the water-stopping particles 17. This ensures the structural integrity of the auxiliary lower cover 14 and the auxiliary upper cover 15, extending the overall service life of the device. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-regulating, high-temperature resistant, sealing ball valve, comprising a ball valve body (1), wherein a ball core (5) is disposed inside the ball valve body (1), and a through groove (6) is formed on the ball core (5), characterized in that, The ball valve body (1) has a first pipe (3) connected to both ends by a sealing element (2). A first sealing ring (8) is provided on the outside of the ball core (5). A first sealing groove (9) is provided on the inside of the ball valve body (1). The first sealing ring (8) is adapted to the first sealing groove (9). A support seat (10) is provided at the upper and lower ends of the ball core (5). The support seat (10) is located inside the ball valve body (1). A second sealing ring (11) is installed on the support seat (10). The second sealing ring (11) is located inside the second sealing groove (12). The second sealing groove (12) is opened on the upper and lower surfaces of the ball core (5).

2. The self-adjusting, high-temperature resistant ball valve according to claim 1, characterized in that: A valve stem (4) is provided on the ball core (5), and the valve stem (4) is connected through to the upper end of the ball valve body (1). A sealing packing (7) is provided on the outside of the valve stem (4).

3. The self-regulating, high-temperature resistant ball valve with excellent sealing properties according to claim 1, characterized in that: The first pipe (3) is connected to the second pipe (13) through a flange structure, and a protective component is provided on the outside of the connection between the first pipe (3) and the second pipe (13).

4. The self-adjusting, high-temperature resistant ball valve according to claim 3, characterized in that: The protective assembly includes an auxiliary lower cover (14) and an auxiliary upper cover (15) installed at the connection between the first pipe (3) and the second pipe (13), and the auxiliary lower cover (14) and the auxiliary upper cover (15) are connected by a bolt structure.

5. A self-regulating, high-temperature resistant ball valve with excellent sealing properties according to claim 4, characterized in that: The auxiliary upper cover (15) is threaded with an auxiliary cover (16), and the auxiliary lower cover (14) and the auxiliary upper cover (15) are provided with water-stopping particles (17).

6. A self-adjusting, high-temperature resistant ball valve with excellent sealing properties according to claim 4, characterized in that: The bottom of the auxiliary lower cover (14) is equipped with an auxiliary plate (18), the inside of the auxiliary upper cover (15) is equipped with a guide rod (20), and a lifting plate (19) is sleeved on the outside of the guide rod (20).

7. A self-adjusting, high-temperature resistant ball valve with excellent sealing properties according to claim 6, characterized in that: A spring (21) is provided on the upper surface of the lifting plate (19), the spring (21) is sleeved on the outside of the guide rod (20), and a first contact piece (22) is provided on the upper surface of the lifting plate (19).

8. A self-regulating, high-temperature resistant ball valve with excellent sealing properties according to claim 7, characterized in that: The auxiliary cover (15) is equipped with a second contact piece (23) at the top inside, the first contact piece (22) is adapted to the second contact piece (23), and an alarm (24) is installed on the auxiliary cover (15).

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