High-pressure ball valve with pressure relief protection

Abstract

The utility model discloses a high-pressure ball valve with pressure relief protection, which comprises a valve body shell, a pressure relief mechanism is arranged on the valve body shell, and the pressure relief mechanism can enable the high-pressure ball valve to have pressure relief protection; the pressure relief mechanism comprises a first connecting pipe and a second connecting pipe, the first connecting pipe is installed at one end of the valve body shell, the second connecting pipe is installed at the other end of the valve body shell, a first connector is installed at the other end of the first connecting pipe, and a second connector is installed at the other end of the second connecting pipe. A pressure relief mechanism is arranged on the high-pressure ball valve, after the high-pressure ball valve is closed, liquid enters the ball valve through a pressure relief hole, impact deformation caused by excessive pressure in the ball valve is avoided, liquid impulsive force is buffered through a buffering cross, and the liquid subjected to pressure relief is conveyed into a first connecting pipe through a pressure relief pipe; therefore, a good pressure relief effect is achieved on the high-pressure ball valve, pressure relief can be conducted when the high-pressure ball valve is closed and opened, and damage caused by large pressure after the high-pressure ball valve is closed is avoided.

Description

Technical Field

[0001] The utility model relates to a ball valve field, in particular to a high-pressure ball valve with pressure relief protection. Background Technique

[0002] A high-pressure ball valve refers to a valve whose opening and closing part is driven by a valve stem and rotates around the axis of the valve stem. It is used in hydraulic machinery and equipment, hydraulic switches, natural gas, etc. The high-pressure ball valve has an operation of rotating 90 degrees. The plug body is a sphere, and there is a circular through hole or channel passing through its axis. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to rotate 90 degrees of operation and a very small torque to close tightly. The ball valve is most suitable for use as a switch and a cut-off valve. Most of the existing high-pressure ball valves do not have a buffer structure inside. During use, affected by the impact of fluid pressure, the sphere may be deformed, etc., affecting the use or causing leakage, etc.;

[0003] Therefore, it is very necessary to propose a high-pressure ball valve with pressure relief protection. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-pressure ball valve with pressure relief protection to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-pressure ball valve with pressure relief protection includes a valve body housing, and a pressure relief mechanism is arranged on the valve body housing, and the pressure relief mechanism can make the high-pressure ball valve have pressure relief protection;

[0007] The pressure relief mechanism includes a first connecting pipe and a second connecting pipe. The first connecting pipe is installed at one end of the valve body housing, and the second connecting pipe is installed at the other end of the valve body housing.

[0008] In a preferred embodiment of the utility model, a first joint is installed at the other end of the first connecting pipe, and a second joint is installed at the other end of the second connecting pipe.

[0009] In a preferred embodiment of the utility model, sealing joints are installed inside both side ends of the valve body housing, and a water blocking cover is arranged outside the sealing joints.

[0010] In a preferred embodiment of the utility model, a pressure relief pipe is installed at the other end of the sealing joint, and the other end of the pressure relief pipe is connected to the first connecting pipe.

[0011] In a preferred embodiment of the utility model, a first connecting shaft is rotatably installed at the upper end of the valve body housing, a second connecting shaft is rotatably installed at the lower end of the valve body housing, and a valve handle is installed on the outer wall of the first connecting shaft.

[0012] In a preferred embodiment of the present utility model, a ball valve is installed between the first connecting shaft and the second connecting shaft, and a pressure relief hole is formed on the arc-shaped surface of the side wall of the ball valve.

[0013] In a preferred embodiment of the present utility model, the pressure relief mechanism further includes a buffer cross, and the buffer cross is installed inside the ball valve.

[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model.

[0015] Beneficial effects:

[0016] By providing a pressure relief mechanism on the high-pressure ball valve, after the high-pressure ball valve is closed, the liquid enters the ball valve through the pressure relief hole, avoiding excessive pressure impact deformation inside the ball valve. The buffer cross buffers the impact force of the liquid, and the pressure relief pipe conveys the relieved liquid into the first connecting pipe, thereby playing a good pressure relief role for the high-pressure ball valve, enabling the high-pressure ball valve to relieve pressure when closing and opening, and avoiding damage caused by high pressure after the high-pressure ball valve is closed. Description of the drawings

[0017] Figure 1 It is a schematic diagram of a high-pressure ball valve with pressure relief protection;

[0018] Figure 2 It is a top view of a high-pressure ball valve with pressure relief protection;

[0019] Figure 3 It is a structural diagram of a high-pressure ball valve with pressure relief protection;

[0020] Figure 4 It is a front view of the ball valve in a high-pressure ball valve with pressure relief protection;

[0021] Figure 5 It is a side view of the ball valve in a high-pressure ball valve with pressure relief protection.

[0022] In the figure: valve body housing 1, first connecting shaft 11, valve handle 12, second connecting shaft 13, pressure relief mechanism 2, first connecting pipe 21, second connecting pipe 211, first joint 22, second joint 221, pressure relief pipe 23, sealing joint 24, water blocking cover 25, ball valve 26, pressure relief hole 27, buffer cross 28. Specific implementation manners

[0023] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0024] Embodiment 1: As Figures 1-4 ;

[0025] It includes a valve body housing 1, and a pressure relief mechanism 2 is provided on the valve body housing 1. The pressure relief mechanism 2 enables the high-pressure ball valve to have pressure relief protection;

[0026] The pressure relief mechanism 2 includes a first connecting pipe 21 and a second connecting pipe 211. The first connecting pipe 21 is installed at one end of the valve body housing 1. The first connecting pipe 21 is used to support and connect to a first joint 22. The second connecting pipe 211 is installed at the other end of the valve body housing 1. The second connecting pipe 211 is used to support and connect to a second joint 221. The other end of the first connecting pipe 21 is installed with the first joint 22. The first joint 22 is used for threaded connection to a pipeline. The other end of the second connecting pipe 211 is installed with the second joint 221. The second joint 221 is used for threaded connection to a pipeline. Sealing joints 24 are installed inside both side ends of the valve body housing 1. The sealing joints 24 are used to connect to a pressure relief pipe 23. The liquid that is depressurized inside the ball valve 26 enters the pressure relief pipe 23 through the sealing joints 24. A water blocking cover 25 is provided outside the sealing joints 24. The water blocking cover 25 is used to prevent water leakage of the sealing joints 24. When the ball valve 26 rotates and closes, the liquid inside the ball valve 26 is blocked by the water blocking cover 25 and prevented from entering the sealing joints 24 and the pressure relief pipe 23. The other end of the sealing joint 24 is installed with the pressure relief pipe 23. The pressure relief pipe 23 conveys the liquid into the first connecting pipe 21 for pressure relief. The other end of the pressure relief pipe 23 is connected to the first connecting pipe 21. A first connecting shaft 11 is rotatably installed at the upper end of the valve body housing 1. A second connecting shaft 13 is rotatably installed at the lower end of the valve body housing 1. The first connecting shaft 11 and the second connecting shaft 13 are used to support and rotate the ball valve 26. A valve handle 12 is installed on the outer wall of the first connecting shaft 11. By rotating the valve handle 12, it is used to drive the first connecting shaft 11 and the ball valve 26 to rotate. The ball valve 26 is installed between the first connecting shaft 11 and the second connecting shaft 13. The opening and closing of the ball valve 26 control the opening and closing inside the valve body housing 1. A pressure relief hole 27 is provided on the arc-shaped surface of the side wall of the ball valve 26. Pressure relief is carried out through the pressure relief hole 27, so that the liquid enters the ball valve 26 through the pressure relief hole 27, avoiding excessive pressure inside the ball valve from causing impact deformation;

[0027] The valve handle 12 rotates, driving the ball valve 26 to rotate and close. The liquid enters the ball valve 26 through the pressure relief hole 27 to prevent excessive pressure inside the ball valve from causing impact deformation. The buffer cross 28 buffers the impact force of the liquid. The liquid inside the ball valve 26 is blocked and protected by the water blocking cover 25 and enters the sealing joint 24 and the pressure relief pipe 23. The pressure relief pipe 23 conveys the pressure-relieved liquid into the connecting pipe 1, thereby playing a good role in relieving pressure on the high-pressure ball valve.

[0028] Embodiment 2: As Figure 5 ;

[0029] It includes a valve body housing 1, and a pressure relief mechanism 2 is provided on the valve body housing 1. The pressure relief mechanism 2 enables the high-pressure ball valve to have pressure relief protection;

[0030] The pressure relief mechanism 2 further includes a buffer cross 28, which is installed inside the ball valve 26. After the liquid enters the inside of the ball valve 26, the buffer cross 28 buffers the impact force of the liquid, and also plays a role in relieving pressure on the ball valve 26.

[0031] The working principle of the present utility model is: The connecting pipe 1 is installed at one end of the valve body housing 1, the connecting pipe 211 is installed at the other end of the valve body housing 1. The other end of the connecting pipe 1 is installed with a joint 1, and the other end of the connecting pipe 211 is installed with a joint 221. Sealing joints 24 are installed inside both side ends of the valve body housing 1. A water blocking cover 25 is provided on the outside of the sealing joint 24. The other end of the sealing joint 24 is installed with a pressure relief pipe 23, and the other end of the pressure relief pipe 23 is connected to the connecting pipe 1. The connecting shaft 11 is rotatably installed at the upper end of the valve body housing 1, and the connecting shaft 13 is rotatably installed at the lower end of the valve body housing 1. A valve handle 12 is installed on the outer wall of the connecting shaft 11. A ball valve 26 is installed between the connecting shaft 11 and the connecting shaft 13. A pressure relief hole 27 is provided on the arc surface of the side wall of the ball valve 26. The buffer cross 28 is installed inside the ball valve 26. Hold the valve handle 12 and rotate it to drive the ball valve 26 to rotate and open. The buffer cross 28 buffers the impact force of the liquid and also plays a role in relieving pressure on the ball valve 26. The valve handle 12 rotates to drive the ball valve 26 to rotate and close. The liquid enters the ball valve 26 through the pressure relief hole 27 to prevent excessive pressure inside the ball valve from causing impact deformation. The buffer cross 28 buffers the impact force of the liquid. The liquid inside the ball valve 26 is blocked and protected by the water blocking cover 25 and enters the sealing joint 24 and the pressure relief pipe 23. The pressure relief pipe 23 conveys the pressure-relieved liquid into the connecting pipe 1, thereby playing a good role in relieving pressure on the high-pressure ball valve, enabling the high-pressure ball valve to relieve pressure when closing and opening, and avoiding damage caused by high pressure after the high-pressure ball valve is closed.

[0032] Although the present utility model has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present utility model can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high-pressure ball valve with pressure relief protection, comprising a valve body shell (1), characterized in that: A pressure relief mechanism (2) is provided on the valve body shell (1), and the pressure relief mechanism (2) can enable the high-pressure ball valve to have pressure relief protection; The pressure relief mechanism (2) comprises a connecting pipe 1 (21) and a connecting pipe 2 (211), wherein the connecting pipe 1 (21) is installed at one end of the valve body shell (1), and the connecting pipe 2 (211) is installed at the other end of the valve body shell (1).

2. A high-pressure ball valve with pressure relief protection according to claim 1, characterized in that: The other end of the connecting pipe 1 (21) is installed with a joint 1 (22), and the other end of the connecting pipe 2 (211) is installed with a joint 2 (221).

3. A high-pressure ball valve with pressure relief protection according to claim 2, characterized in that: Sealing joints (24) are installed inside both side ends of the valve body shell (1), and a water blocking cover (25) is arranged outside the sealing joint (24).

4. A high-pressure ball valve with pressure relief protection according to claim 3, characterized in that: A pressure relief pipe (23) is installed at the other end of the sealing joint (24), and the other end of the pressure relief pipe (23) is connected to the connecting pipe 1 (21).

5. A high-pressure ball valve with pressure relief protection according to claim 1, characterized in that: A connecting shaft 1 (11) is rotatably mounted on the upper end of the valve body shell (1), a connecting shaft 2 (13) is rotatably mounted on the lower end of the valve body shell (1), and a valve handle (12) is mounted on the outer wall of the connecting shaft 1 (11).

6. A high-pressure ball valve with pressure relief protection according to claim 5, characterized in that: A ball valve (26) is installed between the connecting shaft 1 (11) and the connecting shaft 2 (13), and a pressure relief hole (27) is provided on the arc surface of the side wall of the ball valve (26).

7. A high pressure ball valve with pressure relief protection according to claim 1, characterized in that: The pressure relief mechanism (2) further comprises a buffer cross (28), wherein the buffer cross (28) is installed inside the ball valve (26).

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