Angle type ball valve used in energy storage system

Abstract

The invention discloses an angle type ball valve used in an energy storage system, and relates to the technical field of ball valve equipment. A flow inlet pipe is installed at the bottom end of the valve body, a flow outlet cover is installed on one side of the valve body, a sealing cover is installed on the other side of the valve body, a flow outlet pipe is installed on one side of the middle of the flow outlet cover, a valve ball is installed in the middle of the valve body, sealing seats are installed on the two sides in the valve body, and the valve ball is attached to the sealing seats on the adjacent sides. A main disc spring is installed between the outflow cover and the sealing seat on the adjacent side, the main disc spring is installed at a fluid outlet of the valve ball and used for compensating sealing pressure, a rotating shaft piece is installed at the top end of the valve ball and used for rotating the valve ball, and a sealing gasket is installed between the rotating shaft piece and the valve body. The main disc spring is installed at the outflow port of the ball valve, and the main disc spring is extruded by means of outflow pressure, so that the main disc spring has the sealing effect on the ball valve all the time in the long-term use process.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valve equipment, and in particular to an angle ball valve used in an energy storage system. Background Art

[0002] Angle ball valves include right-angle ball valves, in which the fluid inlet and outlet of the valve body are at a 90-degree angle, and the fluid on-off control is performed by a built-in valve ball. In energy storage systems, this type of ball valve is mainly used for flow control of coolants or media. It has the advantages of good sealing, easy operation, and strong adaptability. It can achieve rapid opening and closing and flow regulation to ensure efficient and safe operation of the system.

[0003] Patent specification with announcement number CN213628984U discloses a right-angle wear-resistant regulating ball valve, which includes a valve body, a valve cover arranged on the valve body, and a ball arranged in the valve body. A valve stem is provided on the top of the valve cover. One end of the valve stem is placed in the valve body and connected to the ball, and the other end is provided with an actuator. The valve body is provided with a medium inlet channel and a medium outflow channel. The ball is provided with a medium inlet and a medium outlet. The medium inlet is provided on the side of the ball, and the medium outlet is provided at the bottom of the ball. The flow channel formed by the medium inlet and the medium outlet is 90 degrees. The medium outlet of the ball is provided with an orifice plate with a plurality of small holes.

[0004] When this right-angle ball valve is in use, a front valve seat is installed at the inlet end of the valve ball. The front valve seat is pushed by the thrust of the medium to squeeze the valve ball to achieve a sealing effect on the valve ball. The front valve seat is built with a disc spring with pre-stored energy. When the medium pushes the front valve seat, the disc spring deforms and releases the stored energy to synchronously push the front valve seat, thereby achieving an auxiliary effect of sealing the valve ball with the front valve seat. However, the disadvantage of this technical solution is that the disc spring in the ball valve is installed on one side of the inlet end. The disc spring here must be in a compressed energy-storing state during the installation phase, and its function is limited to providing auxiliary thrust in the same direction as the inlet direction for the front valve seat to seal the valve ball. However, the valve ball will gradually become smaller under the long-term scouring of the medium, and a small gap will appear between it and the front valve seat. At this time, the disc spring will release the pre-stored energy due to the appearance of the gap, thereby losing the ability to push the front valve seat during the subsequent valve ball sealing process. The front valve seat will also reduce its sealing function for the valve ball due to insufficient thrust and the existence of the gap. Summary of the Invention

[0005] The purpose of the present invention is to provide an angle ball valve for use in an energy storage system. The technical problems to be solved are as follows: the position of the disc spring installed in the existing right-angle ball valve is defective, and it will lose its function after long-term use and the sealing ability of the ball valve will gradually decrease.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An angle ball valve for an energy storage system comprises a valve body, an inlet pipe is installed at the bottom end of the valve body, an outlet cover is installed on one side of the valve body, and a sealing cover is installed on the other side, an outlet pipe is installed on one side of the middle part of the outlet cover, a valve ball is installed in the middle of the valve body, sealing seats are installed on both sides of the inside of the valve body, the valve ball fits with the sealing seat on the adjacent side, a main disc spring is installed between the outlet cover and the sealing seat on the adjacent side, the main disc spring is installed at the fluid outlet of the valve ball and is used to compensate for sealing pressure, a rotating shaft is installed on the top of the valve ball, the rotating shaft is used to rotate the valve ball, and a sealing gasket is installed between the rotating shaft and the valve body.

[0008] As a further solution of the present invention: an inner sealing cavity is opened between the adjacent sides of the outflow cover and the sealing cover, a sealing ring is inserted into the inner wall of the inner sealing cavity, and the inner sealing cavity and the sealing ring are both used to seal the valve body.

[0009] As a further solution of the present invention: one end of the main disc spring is in contact with the inner sealing cavity, and the other end is in contact with the sealing seat on the adjacent side, and the main disc spring is in an uncompressed state.

[0010] As a further solution of the present invention: the side cross-section of the sealing seat is "T"-shaped, one side of the sealing seat is adapted to be connected to the adjacent side of the outer surface of the valve ball, and the other side is against the inner side of the valve body.

[0011] As a further solution of the present invention: a secondary disc spring is installed between one side of the cover and the sealing seat on the adjacent side, and the secondary disc spring is in a compressed state.

[0012] As a further solution of the present invention: a limiting groove is provided at the top of the valve ball, the limiting groove is connected to the bottom end of the rotating shaft, an outlet is opened on one side of the valve ball, and an inlet is opened in a direction perpendicular to the outlet.

[0013] As a further solution of the present invention: the rotating shaft includes a main bearing seat installed on the top of the valve body, a rotating shaft is fixedly connected to the inside of the main bearing seat, a handle is installed on the top of the rotating shaft, a limit rod is threadedly connected to one side of the top of the valve body, and a butt is provided on the side of the handle close to the limit rod, the butt is limited to the top of the limit rod, and a secondary bearing seat is installed between the bottom of the rotating shaft and the valve body for limiting.

[0014] As a further solution of the present invention: the sealing gasket is installed between the main bearing seat and the valve body, and the bottom end of the rotating shaft is clamped with the limiting groove.

[0015] Beneficial effects of the present invention:

[0016] In the present invention, a main disc spring is installed at the outlet pipe of the ball valve, and a sealing seat is installed between the main disc spring and the valve ball. When in use, the outlet of the valve ball is rotated to the outlet pipe side by rotating the handle of the rotating shaft. When the fluid passes through the valve ball, it will impact the valve ball and press it toward the sealing seat on the main disc spring side. The main disc spring then rebounds in the opposite direction to ensure the sealing seat and the valve ball are in a close fit, thereby avoiding the problem of fluid dripping caused by a gap between the valve ball and the sealing seat when the fluid passes through.

[0017] Furthermore, after the valve ball has been used for a long time, a small gap will appear on the outer surface of the valve ball due to the impact of the fluid. At this time, since the sealing seat is a colloid, and the fluid passing through the ball valve will still squeeze the main disc spring through the sealing seat with a longer impact stroke, the main disc spring can still rebound in the opposite direction to make the sealing seat with the gap fit with the valve ball, thereby realizing the compensation function for the fluid impact force. Its technical advantage is that the main disc spring is installed at the outlet end of the valve ball, and the impact of the fluid and the rebound effect of the main disc spring can always maintain the fitting state of the sealing seat and the valve ball surface, even if the sealing seat itself has a gap with the valve ball surface, thereby improving the stability of the ball valve seal. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a partial cross-sectional view of the present invention;

[0021] Figure 3 This invention Figure 2 A magnified view of the details at center A;

[0022] Figure 4 It is a partial half-section view of the present invention;

[0023] Figure 5 This invention Figure 4 A magnified view of the detail at point B in the middle;

[0024] Figure 6 It is a partial exploded view of the present invention;

[0025] Figure 7 The present invention Figure 6 Enlarged detail of point C in the middle.

[0026] In the figure: 1. Valve body; 2. Inlet pipe; 3. Outlet cover; 4. Sealing cover; 5. Outlet pipe; 6. Valve ball; 7. Sealing seat; 8. Main disc spring; 9. Rotating shaft; 10. Sealing gasket; 11. Inner sealing chamber; 12. Sealing ring; 13. Auxiliary disc spring; 14. Limiting groove; 15. Outlet; 16. Inlet; 17. Main bearing seat; 18. Rotating shaft; 19. Handle; 20. Limiting rod; 21. Butt; 22. Auxiliary bearing seat. DETAILED DESCRIPTION

[0027] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] like Figures 1 to 7 As shown, an angle ball valve for an energy storage system includes a valve body 1, an inlet pipe 2 is installed at the bottom end of the valve body 1, an outlet cover 3 is installed on one side of the valve body 1, and a sealing cover 4 is installed on the other side. An outlet pipe 5 is installed in the middle of the outlet cover 3, and a valve ball 6 is installed in the middle of the valve body 1. Sealing seats 7 are installed on both sides of the interior of the valve body 1. Both sides of the valve ball 6 are in contact with the sealing seats 7 on the adjacent side. A main disc spring 8 is installed between the outlet cover 3 and the sealing seats 7 on the adjacent side. The main disc spring 8 is installed on the outflow side of the valve ball 6 and is used to compensate for the sealing pressure. A rotating shaft 9 is installed on the top of the valve ball 6. The rotating shaft 9 is used to rotate the valve ball 6. A sealing gasket 10 is installed between the rotating shaft 9 and the valve body 1.

[0029] It should be noted that the valve body 1 is made of 316L stainless steel as a whole to improve its strength in use. The inlet pipe 2 is threadedly connected to one side of the valve body 1. The surface of the outlet cover 3 valve ball 6 is coated with tungsten carbide or ceramic coating to improve its wear resistance and impact resistance. A total of four fastening bolts are installed along the four corners between the outlet cover 3, the valve body 1 and the cover 4.

[0030] An inner sealing cavity 11 is provided between the adjacent sides of the outflow cover 3 and the sealing cover 4. A sealing ring 12 is inserted between the inner wall of the inner sealing cavity 11 and the adjacent side of the valve body 1. The inner sealing cavity 11 and the sealing ring 12 are used to seal the valve body 1.

[0031] One end of the main disc spring 8 is in contact with the inner sealing cavity 11, and the other end is in contact with the sealing seat 7 on the adjacent side. The main disc spring 8 is in an uncompressed state.

[0032] The side cross-section of the sealing seat 7 is T-shaped, and one side is concave to match the outer surface of the valve ball 6. One side of the sealing seat 7 abuts against the inner side of the valve body 1.

[0033] A secondary disc spring 13 is installed between one side of the cover 4 and the sealing seat 7 on the adjacent side, and the secondary disc spring 13 is in a compressed state;

[0034] A limiting groove 14 is provided at the top of the valve ball 6, which is connected to the bottom end of the rotating shaft 9. An outlet 15 is provided on one side of the valve ball 6, and an inlet 16 is provided perpendicular to the outlet 15. That is, the cross-section of the flow passage inside the valve ball 6 is "L"-shaped.

[0035] The rotating shaft member 9 includes a main bearing seat 17 mounted on the top of the valve body 1. The main bearing seat 17 is fixedly connected to the rotating shaft 18. A handle 19 is installed on the top of the rotating shaft 18. A limit rod 20 is threadedly connected to one side of the top of the valve body 1. A stopper 21 is provided on the side of the handle 19 close to the limit rod 20. The stopper 21 is limited against the top of the limit rod 20. A secondary bearing seat 22 is installed between the bottom of the rotating shaft 18 and the valve body 1.

[0036] The sealing gasket 10 is installed between the main bearing seat 17 and the valve body 1, and the bottom end of the rotating shaft 18 is clamped with the limiting groove 14;

[0037] It should be noted that by installing a fastening bolt between the outflow cover 3, the valve body 1 and the cover 4, and providing an inner sealing cavity 11 on the inner side of the outflow cover 3 and the cover 4, and installing a sealing ring 12 in the inner sealing cavity 11, the ball valve body is in a sealed state. At the same time, by installing a sealing gasket 10 at the position of the rotating shaft 18 of the valve body 1, the ball valve is also in a sealed state when the rotating shaft 9 is rotated to control the opening and closing of the valve, thereby ensuring the sealing performance of the ball valve. In addition, the sealing seat 7 and the sealing gasket 10 are preferably made of polytetrafluoroethylene and are used together to seal the ball valve.

[0038] When the ball valve is in use, when the rotating shaft 9 is in the state where the handle 19 and the limit rod 20 are in contact with each other, the outlet 15 of the valve ball 6 is separated from the outlet pipe 5, and a sealing gasket 10 is provided on the top of the valve body 1. At this time, the valve is in a closed state. The valve flow rate can be controlled by adjusting the rotation angle of the handle 19. When fluid needs to pass through, the handle 19 is rotated so that its front end and the limit rod 20 are changed from the contact state to a 90-degree separation state. At this time, the ball valve enters a fully open state, and then the fluid enters the interior of the valve ball 6 through the inlet 16 of the valve ball 6 and turns to The horizontal outlet 15 is discharged from the outlet pipe 5 on the side of the main disc spring 8. During this process, when the flow direction of the fluid changes from the inside of the valve ball 6, since the inlet direction is located at the inlet 16 and the outlet direction is located on the side of the main disc spring 8, the fluid will drive the valve ball 6 to approach and squeeze the sealing seat 7 on the side of the outlet pipe 5 after entering the valve ball 6. The other side of the sealing seat 7 is against the main disc spring 8, and the sealing seat 7 will squeeze the main disc spring 8. The main disc spring 8 rebounds under force, squeezing the sealing seat 7 and the surface of the valve ball 6 into a tight fit, thereby achieving tight sealing control during outflow.

[0039] When the valve ball 6 is used for a long time, the outer surface is washed and the ball becomes smaller. At this time, there is a small gap between the sealing seat 7 on the side of the main disc spring 8 and the valve ball 6. When the fluid impacts the valve ball 6, the valve ball 6 will increase the extrusion stroke. At this time, the main disc spring 8 can still rebound to make the sealing seat 7 fit tightly with the valve ball 6. That is, when the main disc spring 8 is installed at the outlet end in the direction of fluid passage, the fluid will always carry the valve ball 6 to impact the main disc spring 8. The main disc spring 8 relies on its rebound ability to press the sealing seat 7 against the surface of the valve ball 6, thereby effectively avoiding the problem of reduced sealing performance between the sealing seat 7 and the valve ball 6 when the valve ball 6 is used for a long time, that is, avoiding the occurrence of fluid dripping to the bottom of the valve body 1 through the gap when the valve is opened;

[0040] In particular, the auxiliary disc spring 13 is in a compressed state, which can always push the valve ball 6 toward the main disc spring 8 to assist in the sealing state between the valve ball 6 and the sealing seats 7 on both sides.

[0041] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An angle ball valve for use in an energy storage system, comprising a valve body (1), an inlet pipe (2) being mounted at the bottom end of the valve body (1), an outlet cover (3) being mounted on one side of the valve body (1), and a sealing cover (4) being mounted on the other side, an outlet pipe (5) being mounted on one side of the middle of the outlet cover (3), and a valve ball (6) being mounted on the middle of the valve body (1), characterized in that: Sealing seats (7) are installed on both sides of the interior of the valve body (1), the valve ball (6) fits against the sealing seat (7) on the adjacent side, a main disc spring (8) is installed between the outlet cover (3) and the sealing seat (7) on the adjacent side, the main disc spring (8) is installed at the fluid outlet of the valve ball (6), and is used to compensate for the sealing pressure, a rotating shaft (9) is installed on the top of the valve ball (6), the rotating shaft (9) is used to rotate the valve ball (6), and a sealing gasket (10) is installed between the rotating shaft (9) and the valve body (1).

2. The angle ball valve for use in an energy storage system according to claim 1, characterized in that: An inner sealing cavity (11) is provided between adjacent sides of the outflow cover (3) and the sealing cover (4), a sealing ring (12) is inserted into the inner wall of the inner sealing cavity (11), and the inner sealing cavity (11) and the sealing ring (12) are both used to seal the valve body (1).

3. The angle ball valve for use in an energy storage system according to claim 2, characterized in that: One end of the main disc spring (8) is in contact with the inner sealing cavity (11), and the other end is in contact with the sealing seat (7) on the adjacent side. The main disc spring (8) is in an uncompressed state.

4. The angle ball valve for use in an energy storage system according to claim 1, characterized in that: The side cross-section of the sealing seat (7) is T-shaped, one side of the sealing seat (7) is adapted to be connected with the adjacent side of the outer surface of the valve ball (6), and the other side is against the inner side of the valve body (1).

5. The angle ball valve for use in an energy storage system according to claim 1, characterized in that: A secondary disc spring (13) is installed between one side of the sealing cover (4) and the sealing seat (7) on the adjacent side, and the secondary disc spring (13) is in a compressed state.

6. The angle ball valve for use in an energy storage system according to claim 1, characterized in that: A limiting groove (14) is provided at the top of the valve ball (6), and the limiting groove (14) is connected to the bottom end of the rotating shaft (9). An outlet (15) is provided on one side of the valve ball (6), and an inlet (16) is provided in a direction perpendicular to the outlet (15).

7. The angle ball valve for use in an energy storage system according to claim 6, characterized in that: The rotating shaft member (9) includes a main bearing seat (17) installed on the top of the valve body (1), a rotating shaft (18) is fixedly connected inside the main bearing seat (17), a handle (19) is installed on the top of the rotating shaft (18), a limiting rod (20) is threadedly connected to one side of the top of the valve body (1), and a stop (21) is provided on the side of the handle (19) close to the limiting rod (20), and the stop (21) is limited to the top of the limiting rod (20), and a secondary bearing seat (22) is installed between the bottom of the rotating shaft (18) and the valve body (1) for limiting.

8. The angle ball valve for use in an energy storage system according to claim 7, characterized in that: The sealing gasket (10) is installed between the main bearing seat (17) and the valve body (1), and the bottom end of the rotating shaft (18) is engaged with the limiting groove (14).

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