High-temperature ball valve

Abstract

The utility model discloses a high-temperature ball valve which comprises a valve body, a second sealing washer is fixedly connected to the side inner wall of the valve body, a ball body is rotatably connected to the side inner wall of the valve body, a connecting part is connected to the end, away from the second sealing washer, of the valve body in a threaded mode, and a first sealing washer is fixedly connected to the inner side face of the connecting part. The end, close to the ball body, of the connecting component is fixedly connected with a first limiting ring, the first sealing washer is located between the connecting component and the first limiting ring, the end, close to the ball body, of the valve body is fixedly connected with a second limiting ring, and the second sealing washer is located between the valve body and the second limiting ring. Through the components, the limiting ring, the connecting component, the valve body and other metal components are attached to the sealing gasket more tightly after being heated and expanded, the sealing effect of the ball valve at the high temperature is effectively improved, and the influence caused by deformation of the sealing gasket due to the fact that the elasticity modulus of the sealing gasket changes in the high-temperature environment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, especially a high temperature ball valve. BACKGROUND

[0002] The existing high temperature ball valve is all with special material and design, can keep good performance and stability under high temperature condition, and sets up a group of gear that does not directly contact, when needing to use, makes two gears mesh and controls the switch of ball valve, but does not consider that the sealing ring in the ball valve is deformed in high temperature environment for a long time, which reduces the sealing effect, such as a kind of high temperature ball valve disclosed in Chinese patent, application number CN202420107505.7, although first gear and second gear for rotating valve stem are not in contact, avoid the heat conduction on high temperature ball valve to second gear and ball handle, avoid the influence of subsequent operation, but do not solve the problem that sealing ring is deformed in high temperature environment, which reduces the sealing effect, and use has limitation. SUMMARY

[0003] The utility model discloses a high temperature ball valve, when ball valve is located in high temperature environment, make the abutment of the metal parts such as limiting ring, valve body, connecting component and sealing washer more closely, reduce the change of elastic modulus of sealing washer in high temperature environment, cause the influence of its deformation, effectively improve the sealing effect of ball valve in high temperature.

[0004] The utility model discloses still provide with above-mentioned high temperature ball valve, include: valve body, the side inner wall fixed connection of valve body has sealing washer no.

[0005] The end fixed connection of connecting component close to ball body has limiting ring no. 1, sealing washer no. is located between connecting component and limiting ring no. 1, the end fixed connection of valve body close to ball body has limiting ring no. 2, sealing washer no. 2 is located between valve body and limiting ring no. 2;

[0006] The upper surface rotation of valve body is connected with rotating block, the side surface fixed connection of rotating block has rotating plate, the inboard surface fixed connection of rotating block has screw block, the lower surface fixed connection of screw block has connecting block, the end fixed connection of connecting block away from screw block has clamping block. Through above-mentioned parts, the abutment of the metal parts such as limiting ring, connecting component and valve body and sealing washer is more closely after meeting heat expansion, effectively improve the sealing effect of ball valve in high temperature, reduce the influence caused by sealing washer heat deformation.

[0007] The high-temperature ball valve, the side surface of the valve body is fixedly connected with a limiting block, and the side surface of the limiting block is attached to the rotating block in work.

[0008] The high-temperature ball valve, the side surface of the threaded block is in threaded connection with a nut, and the rotating block is located between the nut and the valve body. Through the above components, the rotating block can be fixed on the threaded block by the nut, so that the rotating block is prevented from falling off in the process of use.

[0009] The high-temperature ball valve, the side surface of the ball body is provided with a fixed groove, and the end, away from the connecting block, of the clamping block extends into the fixed groove. Through the above components, the clamping block can extend into the fixed groove, and when the rotating block rotates, the clamping block can drive the ball body to rotate through the threaded block and the connecting block.

[0010] The high-temperature ball valve, the side surface of the ball body is in rotary connection with a sealing gasket one, the side surface of the ball body is in rotary connection with a sealing gasket two, and the ball body is located between the sealing gasket one and the sealing gasket two. Through the above components, the two ends of the ball body can be sealed by the sealing gasket one and the sealing gasket two, so that the sealing effect of the ball valve is ensured.

[0011] The high-temperature ball valve, one end, close to the valve body, of the connecting component is fixedly connected with a sealing ring, and the sealing ring is located between the valve body and the connecting component. Through the above components, the sealing ring is used to seal the connection between the valve body and the connecting part, so that the sealing effect of the device is improved.

[0012] Beneficial effects:

[0013] Compared with the prior art, when the ball valve is located in a high-temperature environment, the metal components such as the limiting ring, the valve body and the connecting component are heated and expanded, and are attached to the sealing gasket more closely, so that the change of the elastic modulus of the sealing gasket in the high-temperature environment is reduced, the influence caused by the deformation of the sealing gasket is reduced, and the sealing effect of the ball valve in the high-temperature environment is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in connection with the drawings and embodiments;

[0015] Figure 1 It is the overall structure diagram of the high-temperature ball valve of the utility model;

[0016] Figure 2 It is the sectional structure diagram of the high-temperature ball valve of the utility model;

[0017] Figure 3 It is the internal structure explosion diagram of the valve body of the high-temperature ball valve of the utility model;

[0018] Figure 4 It is the exploded view of the rotating block and threaded block structure of the high-temperature ball valve of the utility model;

[0019] Figure 5 It is the sectional view structure diagram of the connecting part of the high-temperature ball valve of the utility model;

[0020] Figure 6 It is the sectional view structure diagram of the valve body of the high-temperature ball valve of the utility model.

[0021] Legend:

[0022] 1, valve body; 2, sealing ring; 3, connecting part; 4, rotating block; 5, limiting block; 6, nut; 7, threaded block; 8, rotating plate; 9, limiting ring one; 10, sealing washer one; 11, ball; 12, sealing washer two; 13, limiting ring two; 14, connecting block; 15, clamping block; 16, fixed groove. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0024] Referring to Figures 1-6 , the high-temperature ball valve of the utility model embodiment, it includes: valve body 1, the side inner wall of valve body 1 is fixedly connected with sealing washer two 12, the shape is conical, the side surface is attached to ball 11, can make limiting ring two 13 and valve body 1 after thermal expansion with sealing washer two 12 attached more closely to improve the sealing property of ball valve in high-temperature environment, the side inner wall of valve body 1 is rotatably connected with ball 11, the side surface of ball 11 is rotatably connected with sealing washer one 10, the side surface of ball 11 is rotatably connected with sealing washer two 12, ball 11 is located between sealing washer one 10 and sealing washer two 12, the switch of pipeline is controlled by rotating in valve body 1, the end of valve body 1 away from sealing washer two 12 is threadedly connected with connecting part 3, sealing washer one 10 is sealed to the other end of valve body 1, the inner side surface of connecting part 3 is fixedly connected with sealing washer one 10, and the structure and function are same with sealing washer two 12, the sealing property between connecting part 3 and ball 11 is enhanced;

[0025] The connecting part 3 is fixedly connected with the limiting ring one 9 near one end of the sphere 11, and the connecting part 3 is fixedly connected with the sealing washer one 10, and the connecting part 3 expands to enhance the fitting effect between the sealing washer one 10 in the high temperature environment, and the sealing effect of the sealing washer one 10 is enhanced, the sealing washer one 10 is located between the connecting part 3 and the limiting ring one 9, and the valve body 1 is fixedly connected with the limiting ring two 13 near one end of the sphere 11, and the valve body 1 is fixedly connected with the sealing washer two 12, and the fitting effect between the sealing washer two 12 is enhanced in the high temperature environment, and the sealing effect of the sealing washer one 10 is enhanced, and the sealing washer two 12 is located between the valve body 1 and the limiting ring two 13;

[0026] The upper surface of the valve body 1 is rotatably connected with the rotating block 4, the rotating block 4 is located between the nut 6 and the valve body 1, the threaded block 7 is driven to rotate, the clamping block 15 can drive the sphere 11 to rotate, the side surface of the rotating block 4 is fixedly connected with the rotating plate 8, the rotating plate 8 is pushed to drive the rotating block 4 to rotate, the inner side surface of the rotating block 4 is fixedly connected with the threaded block 7, the side surface of the threaded block 7 is threadedly connected with the nut 6, the nut 6 can fix the rotating block 4 on the threaded block 7, and the clamping block 15 drives the sphere 11 to rotate, the lower surface of the threaded block 7 is fixedly connected with the connecting block 14, the connecting block 14 is connected with the clamping block 15, and the end, away from the threaded block 7, of the connecting block 14 is fixedly connected with the clamping block 15, and the clamping block 15 drives the sphere 11 to rotate.

[0027] The side surface of the valve body 1 is fixedly connected with the limiting block 5, so that the rotating block 4 can only rotate by 90° at most, the side surface of the limiting block 5 is in contact with the rotating block 4 in the working process, the side surface of the sphere 11 is provided with the fixed groove 16, so that the clamping block 15 can be clamped into the fixed groove 16 and drive the sphere 11 to rotate, the end, away from the connecting block 14, of the clamping block 15 extends into the inside of the fixed groove 16, and the end, near the valve body 1, of the connecting part 3 is fixedly connected with the sealing ring 2, so as to seal the connection between the valve body 1 and the connecting part 3, and the sealing ring 2 is located between the valve body 1 and the connecting part 3.

[0028] Working principle: the sealing ring 2 is placed between the connecting part 3 and the valve body 1, and the connecting part 3 is rotatably connected, so that the connecting part 3 is fixed with the valve body 1, the sealing washer two 12 in the connecting part 3 and the sealing washer one 10 in the valve body 1 are in contact with the sphere 11, and the inside of the ball valve is sealed, when the ball valve is used in a high temperature environment, the connecting part 3 and the limiting ring one 9 and other metal parts will expand and enhance the fitting effect with the sealing washer one 10, and the sealing effect of the sealing washer one 10 is enhanced, the valve body 1 and the limiting ring two 13 also expand after the sealing effect of the sealing washer two 12 is enhanced, when the ball valve needs to be rotated, the rotating plate 8 is rotated, the rotating plate 8 drives the clamping block 15 to rotate through the rotating block 4 and the threaded block 7, so that the clamping block 15 drives the sphere 11 to rotate, and the switching of the ball valve is realized.

[0029] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. A high temperature ball valve, characterized by, Include: The valve body (1), the side inner wall of the valve body (1) is fixedly connected with sealing washer two (12), the side inner wall of the valve body (1) is rotatably connected with the ball (11), the end of the valve body (1) away from sealing washer two (12) is threadedly connected with the connecting component (3), the inner side of the connecting component (3) is fixedly connected with sealing washer one (10); The end of the connecting component (3) close to the ball (11) is fixedly connected with the limit ring one (9), the sealing washer one (10) is located between the connecting component (3) and the limit ring one (9), the end of the valve body (1) close to the ball (11) is fixedly connected with the limit ring two (13), the sealing washer two (12) is located between the valve body (1) and the limit ring two (13); The upper surface of the valve body (1) is rotatably connected with the rotating block (4), the side surface of the rotating block (4) is fixedly connected with the rotating plate (8), the inner side of the rotating block (4) is fixedly connected with the threaded block (7), the lower surface of the threaded block (7) is fixedly connected with the connecting block (14), the end of the connecting block (14) away from the threaded block (7) is fixedly connected with the clamping block (15).

2. The high-temperature ball valve of claim 1, wherein The side surface of the valve body (1) is fixedly connected with the limit block (5), the side surface of the limit block (5) is attached to the rotating block (4) in work.

3. The high-temperature ball valve of claim 1, wherein The side surface of the threaded block (7) is threadedly connected with the nut (6), the rotating block (4) is located between the nut (6) and the valve body (1).

4. The high-temperature ball valve of claim 1, wherein, The side surface of the ball (11) is provided with a fixed groove (16), the end of the clamping block (15) away from the connecting block (14) extends to the inside of the fixed groove (16).

5. The high-temperature ball valve of claim 1, wherein, The side surface of the ball (11) is rotatably connected with the sealing washer one (10), the side surface of the ball (11) is rotatably connected with the sealing washer two (12), the ball (11) is located between the sealing washer one (10) and the sealing washer two (12).

6. The high-temperature ball valve of claim 1, wherein, The end of the connecting component (3) close to the valve body (1) is fixedly connected with the sealing ring (2), the sealing ring (2) is located between the valve body (1) and the connecting component (3).

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