Liquid hydrogen ball valve structure

Abstract

The application relates to the technical field of ball valves and discloses a liquid hydrogen ball valve structure which comprises a ball valve body, connecting pipes fixedly connected to the left and right sides of the top end of the ball valve body, a spherical valve core rotatably connected to the inner wall of the ball valve body, a shunt sleeve installed on the inner wall of the spherical valve core, a vertical plate fixedly connected to the right side of the inner wall of the spherical valve core, elastic components connecting the vertical plate and the shunt sleeve, a transmission rod rotatably connected to the inner wall of the top end of the ball valve body and penetrating through the inner and outer sides, the bottom end of the transmission rod being fixedly connected to the top end of the spherical valve core, a side position arc plate fixedly connected to the front side of the top end of the ball valve body, and a movable bin fixedly connected to the rear side of the top end of the ball valve body. In the application, the spherical valve core cannot be quickly closed due to the flow impact of liquid hydrogen when the ball valve body needs to be closed.

Description

Technical Field

[0001] This invention relates to the field of ball valve technology, and more particularly to a liquid hydrogen ball valve structure. Background Technology

[0002] Liquid hydrogen is the liquid form of hydrogen at extremely low temperatures. It plays an important role in many high-tech applications, especially in aerospace, energy, and scientific research. However, the high cost of producing and storing liquid hydrogen limits its widespread application in certain fields.

[0003] The main types of valves used in existing liquid hydrogen storage and supply systems are check valves, gate valves, regulating valves, and emergency shut-off valves. However, when the flow rate of liquid hydrogen is too large, the impact is too great, and it is difficult to close the valve when it needs to be closed.

[0004] To address the problem that when the flow rate of liquid hydrogen is too high, the surge is too strong, making it difficult to close the valve when it needs to be shut down, this application proposes a liquid hydrogen ball valve structure. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a liquid hydrogen ball valve structure that avoids the inability of the ball valve core to close quickly due to the force of liquid hydrogen flow when the ball valve body needs to be closed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A liquid hydrogen ball valve structure includes a ball valve body, with connecting pipes fixedly connected to the left and right sides of the top of the ball valve body. A spherical valve core is rotatably connected to the inner wall of the ball valve body, and a flow divider sleeve is installed on the inner wall of the spherical valve core. A vertical plate is fixedly connected to the inner wall of the spherical valve core on the right side of the flow divider sleeve. The vertical plate and the flow divider sleeve are connected by an elastic component. A transmission rod is rotatably connected to the inner wall of the top of the ball valve body and extends through both the inner and outer sides. The bottom end of the transmission rod is fixedly connected to the top of the spherical valve core. A side arc plate is fixedly connected to the top of the ball valve body on the front side of the transmission rod. A movable chamber is fixedly connected to the top of the ball valve body on the rear side of the transmission rod. A transmission component is installed between the inner wall of the movable chamber and the transmission rod for adjusting the rotation of the spherical valve core.

[0007] The elastic component includes a slide rod fixedly connected to the left end of the vertical plate and a baffle slidably connected to the inner wall of the diversion sleeve. The middle part of the inner wall of the baffle is slidably connected to the outer wall of the slide rod. A spring is fixedly connected to the right end of the baffle outside the slide rod, and the other end of the spring is fixedly connected to the left end of the vertical plate.

[0008] The transmission assembly includes an electric push rod fixedly connected to the right end of the inner wall of the movable compartment and a gear fixedly connected to the outer wall of the transmission rod. The drive end of the electric push rod is fixedly connected to a linkage frame, and a rack is fixedly connected to the right side of the front end of the linkage frame. The upper and lower ends of the rack are slidably connected to the upper inner wall of the front end of the movable compartment, and one side of the front end of the rack is meshed with the outer diameter of the gear.

[0009] Furthermore, the outer wall of the diversion sleeve is provided with several diffuser grooves, which are used for liquid hydrogen to flow through the diversion sleeve to the other side of the ball valve body.

[0010] Furthermore, a slot block is fixedly connected to the front side of the top end and the right side of the top end of the side arc plate for locking and aligning the rotation of the transmission rod.

[0011] Furthermore, a positioning plate is rotatably connected to the middle of the top of the transmission rod, and the shape of one side of the outer wall of the positioning plate matches the shape of the inner wall of the slot block.

[0012] Furthermore, an installation ring is fixedly connected to the opposite side of the outer wall of the connecting pipe for installation of the connecting pipe.

[0013] The present invention has the following beneficial effects: In this invention, when too much liquid hydrogen accumulates on one side of the diversion sleeve, it will push the baffle to compress the spring, thus buffering the flow. When the baffle moves to the range of the diffuser groove, the liquid hydrogen will flow to the other side of the ball valve body through multiple diffuser grooves. This method allows the liquid hydrogen to flow slowly when passing through the inside of the ball valve body, thereby reducing the impact of a large amount of liquid hydrogen during flow and preventing the ball valve core from being unable to close quickly due to the impact of the liquid hydrogen flow when the ball valve body needs to be closed. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the front end of a liquid hydrogen ball valve structure proposed in this invention; Figure 2 This is a three-dimensional view of the rear end of a liquid hydrogen ball valve structure proposed in this invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the main body of a liquid hydrogen ball valve structure proposed in this invention; Figure 5 This is a cross-sectional view of the flow divider sleeve of a liquid hydrogen ball valve structure proposed in this invention; Figure 6 This is a cross-sectional view of the movable compartment of a liquid hydrogen ball valve structure proposed in this invention.

[0015] Legend: 1. Ball valve body; 2. Connecting pipe; 3. Mounting ring; 4. Side arc plate; 5. Movable chamber; 6. Transmission rod; 7. Alignment plate; 8. Slot block; 9. Ball valve core; 10. Diverter sleeve; 11. Vertical plate; 12. Gear; 13. Rack; 14. Slide rod; 15. Baffle; 16. Diffuser groove; 17. Spring; 18. Electric push rod; 19. Linkage frame. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figure 1 , Figure 4 as well as Figure 5 An embodiment of the present invention provides a liquid hydrogen ball valve structure, comprising a ball valve body 1, with connecting pipes 2 fixedly connected to the left and right sides of the top of the ball valve body 1, a spherical valve core 9 rotatably connected to the inner wall of the ball valve body 1, a flow divider sleeve 10 installed on the inner wall of the spherical valve core 9, a vertical plate 11 fixedly connected to the inner wall of the spherical valve core 9 on the right side of the flow divider sleeve 10, a slide rod 14 fixedly connected to the left end of the vertical plate 11, and a baffle 15 slidably connected to the inner wall of the flow divider sleeve 10, the middle part of the inner wall of the baffle 15 slidably connected to the outer wall of the slide rod 14, and the right end of the baffle 15 being... A spring 17 is fixedly connected to the outside of the slide rod 14. The other end of the spring 17 is fixedly connected to the left end of the vertical plate 11. Several diffuser grooves 16 are opened on the outer wall of the diversion sleeve 10 for liquid hydrogen to flow through the diversion sleeve 10 to the other side of the ball valve body 1. A transmission rod 6 is rotatably connected to the inner wall of the top of the ball valve body 1 and passes through both the inner and outer sides. The bottom end of the transmission rod 6 is fixedly connected to the top of the ball valve core 9. A side arc plate 4 is fixedly connected to the top of the ball valve body 1 in front of the transmission rod 6. A movable chamber 5 is fixedly connected to the top of the ball valve body 1 in rear of the transmission rod 6.

[0018] Specifically, during the transportation process, liquid hydrogen first passes through the ball valve core 9 and accumulates on one side of the diversion sleeve 10. When too much liquid hydrogen accumulates, it pushes the baffle 15 to compress the spring 17, which has a buffering effect. When the baffle 15 moves to the range of the diffuser 16, the liquid hydrogen will flow to the other side of the ball valve body 1 through multiple diffusers 16. When there is less liquid hydrogen accumulated on one side of the diversion sleeve 10, it is not possible to push the baffle 15 to slide inside the diversion sleeve 10. It is necessary to wait until a certain amount of liquid hydrogen accumulates before the baffle 15 can continue to be pushed and pass through the diffuser 16. This allows the liquid hydrogen to flow slowly when passing through the inside of the ball valve body 1, thereby reducing the impact of a large amount of liquid hydrogen during flow. This prevents the ball valve core 9 from being unable to close quickly when the ball valve body 1 needs to be closed due to the impact of the liquid hydrogen flow.

[0019] Reference Figure 2 , Figure 3 as well as Figure 6 An electric push rod 18 is fixedly connected to the right end of the inner wall of the movable chamber 5, and a gear 12 is fixedly connected to the outer wall of the transmission rod 6. A linkage frame 19 is fixedly connected to the drive end of the electric push rod 18. A rack 13 is fixedly connected to the right side of the front end of the linkage frame 19. The upper and lower ends of the rack 13 are slidably connected to the upper inner wall of the front end of the movable chamber 5. One side of the front end of the rack 13 is meshed with the outer diameter of the gear 12. A slot block 8 is fixedly connected to the front side and the right side of the top end of the side arc plate 4 for locking and aligning the rotation of the transmission rod 6. A aligning plate 7 is rotatably connected to the middle of the top end of the transmission rod 6. The shape of one side of the outer wall of the aligning plate 7 matches the shape of the inner wall of the slot block 8. An installation ring 3 is fixedly connected to the opposite side of the outer wall of the connecting pipe 2 for connecting the pipe for installation.

[0020] Specifically, a controller is installed at the rear of the active compartment 5 and is electrically connected to the electric push rod 18. The electric push rod 18 is controlled by PLC technology. When the electric push rod 18 is started, it pushes the linkage frame 19 and moves the rack 13. The gear 12 meshing with it on one side will drive the transmission rod 6 to rotate, which in turn drives the ball valve core 9 to rotate, closing both sides of the ball valve body 1 and causing the ball valve body 1, which was originally open, to close. During the process of closing the ball valve body 1, the transmission rod 6 will drive the positioning plate 7 to rotate synchronously. The positioning plate 7, which is stuck in the right-side slot block 8, will move away from that position, and the other side of the positioning plate 7 will rotate to the front slot block 8 and be stuck, thus achieving simple adjustment and positioning. The ball valve body 1 is installed between the pipes through the connecting pipes 2 on both sides of the ball valve body 1 and the mounting ring 3. The pipes are connected to the connecting pipes 2, and the mounting ring 3 is connected to the collar on the pipe. Then, bolts are inserted into the corresponding holes of the mounting ring 3 and the collar, and nuts are used to tighten them on one side of the bolts.

[0021] Working principle: First, by activating the electric push rod 18, the linkage frame 19 is pushed and the rack 13 moves. The gear 12 meshing with it on one side drives the transmission rod 6 to rotate, which in turn drives the ball valve core 9 to rotate, closing both sides of the ball valve body 1. This causes the ball valve body 1, which was originally open, to close. During the closing of the ball valve body 1, the transmission rod 6 will rotate synchronously with the positioning plate 7. The positioning plate 7, which is stuck in the right-side slot 8, will move away from that position, while the other side of the positioning plate 7 will rotate into the front slot 8 and be stuck. This achieves simple adjustment and positioning. Through the connecting pipes 2 and the mounting rings 3 on both sides of the ball valve body 1, the ball valve body 1 is installed between the pipelines. During the transportation process, liquid hydrogen will first pass through the ball valve core 9 and accumulate in the distribution... On one side of the flow sleeve 10, when too much liquid hydrogen accumulates, it will push the baffle 15 to compress the spring 17, thus buffering the flow. When the baffle 15 moves to the range of the diffuser 16, the liquid hydrogen will flow to the other side of the ball valve body 1 through multiple diffusers 16. When there is less liquid hydrogen accumulated on one side of the flow sleeve 10, it is not possible to push the baffle 15 to slide inside the flow sleeve 10. It is necessary to wait until a certain amount of liquid hydrogen accumulates before the baffle 15 can continue to be pushed and pass through the diffuser 16. In this way, the liquid hydrogen can flow slowly when passing through the inside of the ball valve body 1, thereby reducing the impact of a large amount of liquid hydrogen during flow and preventing the ball valve core 9 from being unable to close quickly due to the impact of the liquid hydrogen flow when the ball valve body 1 needs to be closed.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 liquid hydrogen ball valve structure, characterized in that, The ball valve body (1) is provided with connecting pipes (2) fixedly connected to the left and right sides of the top of the ball valve body (1). A ball valve core (9) is rotatably connected to the inner wall of the ball valve body (1). A flow divider sleeve (10) is installed on the inner wall of the ball valve core (9). A vertical plate (11) is fixedly connected to the inner wall of the ball valve core (9) on the right side of the flow divider sleeve (10). The vertical plate (11) and the flow divider sleeve (10) are connected by an elastic component. A transmission rod (6) is rotatably connected to the inner wall of the top of the ball valve body (1) and passes through both the inner and outer sides. The bottom end of the transmission rod (6) is fixedly connected to the top of the ball valve core (9). A side arc plate (4) is fixedly connected to the top of the ball valve body (1) in front of the transmission rod (6). A movable chamber (5) is fixedly connected to the top of the ball valve body (1) behind the transmission rod (6). A transmission component is installed between the inner wall of the movable chamber (5) and the transmission rod (6) for adjusting the rotation of the ball valve core (9). The elastic component includes a slide rod (14) fixedly connected to the left end of the vertical plate (11) and a baffle (15) slidably connected to the inner wall of the diversion sleeve (10). The middle part of the inner wall of the baffle (15) is slidably connected to the outer wall of the slide rod (14). A spring (17) is fixedly connected to the right end of the baffle (15) outside the slide rod (14). The other end of the spring (17) is fixedly connected to the left end of the vertical plate (11). The transmission assembly includes an electric push rod (18) fixedly connected to the right end of the inner wall of the movable compartment (5) and a gear (12) fixedly connected to the outer wall of the transmission rod (6). The drive end of the electric push rod (18) is fixedly connected to a linkage frame (19). The front right side of the linkage frame (19) is fixedly connected to a rack (13). The upper and lower ends of the rack (13) are slidably connected to the upper inner wall of the front end of the movable compartment (5). One side of the front end of the rack (13) is meshed with the outer diameter of the gear (12).

2. The liquid hydrogen ball valve structure according to claim 1, characterized in that: The outer wall of the diversion sleeve (10) is provided with several diffuser grooves (16) for liquid hydrogen to flow through the diversion sleeve (10) to the other side of the ball valve body (1).

3. The liquid hydrogen ball valve structure according to claim 1, characterized in that: The side arc plate (4) has a slot block (8) fixedly connected to the front side of the top end and the right side of the top end, which is used to engage and calibrate the rotation of the transmission rod (6).

4. The liquid hydrogen ball valve structure according to claim 1, characterized in that: The transmission rod (6) is rotatably connected to the middle of its top end with a positioning plate (7), and the shape of one side of the outer wall of the positioning plate (7) matches the shape of the inner wall of the slot block (8).

5. The liquid hydrogen ball valve structure according to claim 1, characterized in that: An installation ring (3) is fixedly connected to the opposite side of the outer wall of the connecting pipe (2) for connecting the pipe for installation.

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