High-vacuum butterfly valve with water cooling function

Abstract

The high-vacuum butterfly valve comprises a valve body, a valve rod mounting hole is axially formed in the valve body along the center, a water-cooling inlet is formed in one side end of the valve body, a water-cooling outlet is formed in the other side end of the valve body, water-cooling grooves are formed in the two side faces of the valve body, and the two water-cooling grooves are communicated in the valve body. The two water cooling grooves are formed in the two side faces of the valve body and communicated with the water cooling inlet and the water cooling outlet in the two sides of the outer circle of the valve body, and water flow enters the two water cooling grooves from the water cooling inlet and is discharged out of the water cooling outlet to cool the valve body. The O-shaped sealing ring is arranged in the valve body and is communicated with the water-cooling inlet and the water-cooling outlet on the two sides of the outer circle of the valve body, a water source is connected, water flows into the water-cooling groove of the valve body and flows in the valve body in a certain direction, the valve body is cooled to a proper temperature, the O-shaped sealing ring can normally work at a normal temperature, and the service life of the vacuum butterfly valve is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum butterfly valves, in particular to a high vacuum butterfly valve with water cooling. Background Art

[0002] A vacuum butterfly valve is a valve commonly used in vacuum systems to control the flow of gas or liquid in vacuum pipelines. It usually consists of a round valve body and a disc with an axis, and the flow of the medium is controlled by rotating the disc. The design of the vacuum butterfly valve allows it to provide a small flow resistance when opening and closing, and can achieve fast switching action.

[0003] In vacuum systems, butterfly valves are usually used to regulate the flow of gas or liquid, cut off pipelines or divert fluids. They can be used with vacuum pumps, vacuum instruments and other equipment to control the gas pressure and flow in vacuum systems.

[0004] At present, when the vacuum butterfly valve is used in a high temperature environment, the O-ring is easily burned or aged in the high temperature environment, which causes the vacuum butterfly valve to be unable to be used normally, thus affecting the service life of the vacuum butterfly valve. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a high-vacuum butterfly valve with water cooling, including a valve body, a valve stem mounting hole is arranged along the central axis of the valve body, a water cooling inlet is arranged on one side end of the valve body, a water cooling outlet is arranged on the other side end of the valve body, water cooling grooves are arranged on both sides of the valve body, the two water cooling grooves are interconnected inside the valve body, and are connected with the water cooling inlet and water cooling outlet on both sides of the outer circle of the valve body, water flows into the two water cooling grooves from the water cooling inlet and is discharged from the water cooling outlet to cool the valve body.

[0006] Preferably: a first water cooling groove is arranged on one side of the valve body, a first cover plate is welded to one side of the valve body located at the first water cooling groove, and the first cover plate is used to close the first water cooling groove.

[0007] Preferably: a second water cooling groove is arranged on the other side of the valve body, a second cover plate is welded to one side of the valve body located at the second water cooling groove, and the second cover plate is used to close the second water cooling groove.

[0008] Preferably: a water outlet hole is provided near the water cooling outlet of the first water cooling groove, and the water outlet hole is connected with the water cooling outlet.

[0009] Preferably, at least one through hole is opened on the upper portion of the first water-cooling groove, and the first water-cooling groove is connected with the second water-cooling groove through the through hole.

[0010] Preferably, two through holes are provided, and the two through holes are respectively located on both sides of the valve stem mounting hole.

[0011] Preferably: a first stopper is provided in the first water cooling groove, the first stopper is located above the water outlet hole, and the first stopper is located below the through hole.

[0012] Preferably: the second water-cooling tank is provided with a water inlet near the water-cooling inlet, and the water inlet is communicated with the water-cooling inlet.

[0013] Preferably: a second stopper is provided in the second water-cooling groove, the second stopper is located above the water inlet hole, and the second stopper is located below the through hole.

[0014] Preferably, the first water-cooling groove and the second water-cooling groove are in an annular shape.

[0015] Technical effects and advantages of the utility model:

[0016] In the utility model, water cooling grooves are provided on both sides of the valve body, the two water cooling grooves are interconnected inside the valve body, and are connected with the water cooling inlet and the water cooling outlet on both sides of the outer circle of the valve body, and are connected to a water source, and the water flows into the water cooling groove of the valve body, and flows in a certain direction inside the valve body, the valve body is cooled to a suitable temperature, and the O-ring can work normally at normal temperature, thereby extending the service life of the vacuum butterfly valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a high vacuum butterfly valve with water cooling provided in an embodiment of the present application;

[0018] Figure 2 It is a cross-sectional view of the valve body along the direction A of the water-cooled high vacuum butterfly valve provided in an embodiment of the present application;

[0019] Figure 3 It is a cross-sectional view of a valve body in a water-cooled high vacuum butterfly valve provided in an embodiment of the present application, viewed from above;

[0020] Figure 4 It is an exploded view of a water-cooled high vacuum butterfly valve provided in an embodiment of the present application;

[0021] Figure 5 It is a schematic structural diagram of a high vacuum butterfly valve with water cooling provided in an embodiment of the present application, in which the second cover plate is removed from the valve body.

[0022] In the figure: 1. valve body; 11. valve stem mounting hole; 12. valve stem; 13. valve disc; 2. water cooling inlet; 3. water cooling outlet; 4. first water cooling groove; 41. water outlet hole; 42. first stopper; 5. first cover plate; 6. second water cooling groove; 61. water inlet hole; 62. second stopper; 7. second cover plate; 8. through hole. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0024] See also Figures 1 to 3 As shown, in this embodiment, a high vacuum butterfly valve with water cooling is provided, including a valve body 1, the valve body 1 is provided with a valve stem mounting hole 11 along the central axis, the valve stem mounting hole 11 is used to install a valve stem 12, the valve stem 12 is connected to a valve disc 13, a water cooling inlet 2 is provided at one end of the valve body 1, a water cooling outlet 3 is provided at the other end of the valve body 1, a first water cooling groove 4 is provided on one side of the valve body 1, a first cover plate 5 is welded on one side of the valve body 1 located at the first water cooling groove 4, the first cover plate 5 is used to close the first water cooling groove 4, a second water cooling groove 6 is provided on the other side of the valve body 1, and the valve body 1 is located at the second water cooling groove 6. A second cover plate 7 is welded on one side of the groove 6. The second cover plate 7 is used to close the second water-cooling groove 6. After the valve body 1 is connected to the pipeline flange, the sealing groove of the O-ring of the pipeline flange corresponds to the first cover plate 5 and the second cover plate 7, so that the first cover plate 5 and the second cover plate 7 are both in contact with the O-ring of the pipeline flange. The water-cooling inlet 2 is connected to the water source, and the water flows into the second water-cooling groove 6 from the water-cooling inlet 2, and then enters the first water-cooling groove 4, and is discharged from the water-cooling outlet 3 to cool the valve body 1. The water flows in a single direction to fully cool the valve body 1, and the O-ring is dissipated by heat conduction.

[0025] In this embodiment, water cooling grooves are provided on both sides of the valve body 1. The two water cooling grooves are interconnected inside the valve body 1, and are connected to the water cooling inlet 2 and the water cooling outlet 3 on both sides of the outer circle of the valve body 1. When the water source is connected, the water flows into the water cooling groove of the valve body 1 and flows in a certain direction inside the valve body 1. The valve body 1 is cooled to a suitable temperature, and the O-ring can work normally at normal temperature.

[0026] It can be understood that by providing water cooling grooves on both sides of the valve body 1 , the structure of the valve body 1 is compact, and the overall dimensions of the valve body 1 do not change much, which is basically the same as that of a valve body without water cooling.

[0027] The valve body 1 is particularly suitable for high-temperature vacuum media with a temperature of +120 to +250°C. Through water cooling, the O-ring in contact with the valve body 1 is cooled to a temperature of +150°C and can work normally without burning or aging, thereby extending the service life of the O-ring. There is no need for a high-temperature resistant O-ring made of special materials, such as perfluoroether or perfluororubber, thereby saving costs.

[0028] In this embodiment, see Figure 4 As shown, the first water-cooling groove 4 is in a circular shape, and a water outlet hole 41 is provided near the water-cooling outlet 3 of the first water-cooling groove 4, and the water outlet hole 41 is connected with the water-cooling outlet 3. At least one through hole 8 is opened on the upper part of the first water-cooling groove 4, and the first water-cooling groove 4 is connected with the second water-cooling groove 6 through the through hole 8.

[0029] Further, two through holes 8 are provided, and the two through holes 8 are respectively located at two sides of the valve stem mounting hole 11 , so that the through holes 8 avoid the valve stem mounting hole 11 .

[0030] Furthermore, a first stopper 42 is provided in the first water cooling groove 4. The thickness of the first stopper 42 is the same as the depth of the first water cooling groove 4. The first stopper 42 is located above the water outlet hole 41. The first stopper 42 is located below the through hole 8. When water flows into the first water cooling groove 4 from the through hole 8, the water flow is blocked by the first stopper 42, and the water can only enter the water cooling outlet 3 from the water outlet hole 41 and be discharged.

[0031] In this embodiment, see Figure 3 As shown, the second water-cooling groove 6 is in a circular ring shape, and a water inlet hole 61 is provided near the water-cooling inlet 2 of the second water-cooling groove 6. The water inlet hole 61 is connected to the water-cooling inlet 2, and water flows from the water-cooling inlet 2 through the water inlet hole 61 into the second water-cooling groove 6.

[0032] Furthermore, a second stopper 62 is provided in the second water cooling groove 6. The thickness of the second stopper 62 is the same as the depth of the second water cooling groove 6. The second stopper 62 is located above the water inlet hole 61. The second stopper 62 is located below the through hole 8. When water flows into the second water cooling groove 6 from the water inlet hole 61, the water flow is blocked by the second stopper 62, and water can only flow from below.

[0033] The working principle of the utility model is:

[0034] When in use, the water-cooling inlet 2 is connected to the water source, and water flows from the water-cooling inlet 2 through the water inlet hole 61 into the second water-cooling groove 6. Under the obstruction of the second stopper 62, water can only flow from the bottom, flow counterclockwise to the through hole 8, and enter the first water-cooling groove 4 through the through hole 8. Under the obstruction of the first stopper 42, water can only flow from the other side, flow counterclockwise to the water outlet hole 41, and be discharged from the water-cooling outlet 3. Due to the action of the second stopper 62 and the first stopper 42, water can only flow in a single direction. The one-way water flow can fully cool the valve body 1. The O-ring sealing groove of the pipeline flange is just connected to the first cover plate 5 and the second cover plate 7 that are welded together. The first cover plate 5 and the second cover plate 7 are fully cooled, and the O-ring compressed in contact with them can also be cooled, so that the O-ring can work normally at normal temperature, thereby extending the service life of the vacuum butterfly valve.

[0035] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A water-cooled high vacuum butterfly valve, comprising a valve body (1), wherein the valve body (1) is provided with a valve stem mounting hole (11) along the central axis, and characterized in that: A water cooling inlet (2) is provided at one end of the valve body (1), and a water cooling outlet (3) is provided at the other end of the valve body (1). Water cooling grooves are provided on both sides of the valve body (1). The two water cooling grooves are interconnected inside the valve body (1) and are connected to the water cooling inlet (2) and the water cooling outlet (3) on both sides of the outer circle of the valve body (1). Water flows from the water cooling inlet (2) into the two water cooling grooves and is discharged from the water cooling outlet (3) to cool the valve body (1).

2. A water-cooled high vacuum butterfly valve according to claim 1, characterized in that: A first water cooling groove (4) is provided on one side of the valve body (1), and a first cover plate (5) is welded to one side of the valve body (1) located on the first water cooling groove (4), and the first cover plate (5) is used to close the first water cooling groove (4).

3. A water-cooled high vacuum butterfly valve according to claim 1, characterized in that: A second water cooling groove (6) is arranged on the other side of the valve body (1), and a second cover plate (7) is welded to one side of the valve body (1) located at the second water cooling groove (6), and the second cover plate (7) is used to close the second water cooling groove (6).

4. A water-cooled high vacuum butterfly valve according to claim 2, characterized in that: The first water cooling groove (4) is provided with a water outlet hole (41) near the water cooling outlet (3), and the water outlet hole (41) is connected to the water cooling outlet (3).

5. A water-cooled high vacuum butterfly valve according to claim 4, characterized in that: At least one through hole (8) is provided on the upper portion of the first water cooling groove (4), and the first water cooling groove (4) is connected to the second water cooling groove (6) through the through hole (8).

6. A water-cooled high vacuum butterfly valve according to claim 5, characterized in that: The through holes (8) are provided with two, and the two through holes (8) are respectively located at two sides of the valve stem mounting hole (11).

7. A water-cooled high vacuum butterfly valve according to claim 6, characterized in that: A first stopper (42) is provided in the first water cooling groove (4), and the first stopper (42) is located above the water outlet hole (41), and the first stopper (42) is located below the through hole (8).

8. The water-cooled high vacuum butterfly valve according to claim 3, characterized in that: The second water-cooling groove (6) is provided with a water inlet hole (61) near the water-cooling inlet (2), and the water inlet hole (61) is connected to the water-cooling inlet (2).

9. A water-cooled high vacuum butterfly valve according to claim 8, characterized in that: A second stopper (62) is provided in the second water cooling groove (6), and the second stopper (62) is located above the water inlet hole (61), and the second stopper (62) is located below the through hole (8).

10. The water-cooled high vacuum butterfly valve according to claim 1, characterized in that: The water cooling tank is in a circular ring shape.

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