Automatic high-pressure nitrogen filling device

Abstract

The utility model relates to high pressure nitrogen gas filling technical field, propose a kind of high pressure nitrogen gas automatic filling device, including filling pipe, filling pipe is communicated with gas source, further include: sealed box, gas outlet pipe, valve plate and pressure gauge, the side of sealed box is communicated with the other end of filling pipe, one end of gas outlet pipe is communicated with the other side of sealed box, the other end of gas outlet pipe is contacted with the air inlet of high pressure container by tensioning mechanism, tensioning mechanism is used to lock the air inlet of high pressure container with gas outlet pipe, two valve plates are equipped, two valve plates are rotatably arranged in sealed box by swing mechanism, swing mechanism is used to drive two valve plates relative swing, pressure gauge is applied on high pressure container, by above-mentioned technical scheme, the problem that the improper operation and inaccurate adjustment in prior art can all influence the finished product high pressure nitrogen gas of final filling is solved by artificial detection and manual operation high pressure nitrogen gas filling.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure nitrogen filling technology, specifically, to an automatic high-pressure nitrogen filling device. Background Technology

[0002] High-pressure nitrogen is nitrogen gas with a pressure ≥10MPa after compression. It is colorless, odorless, and chemically stable. Due to its high-pressure characteristics, it can be efficiently stored in small containers and transported over long distances. It is widely used in industrial manufacturing, energy and chemical industries, and special fields. When using high-pressure nitrogen, it needs to be filled into a high-pressure container and stored and transported using a special high-pressure container.

[0003] Currently, the filling process of high-pressure nitrogen into high-pressure containers is carried out by manually operating valves to adjust the valve opening and manually checking the pressure gauge display. The valve is adjusted according to the pressure displayed on the pressure gauge to meet the filling pressure. This production process requires a high level of manual skill, and improper operation or inaccurate adjustment will affect the final high-pressure nitrogen product. Utility Model Content

[0004] This invention proposes an automatic high-pressure nitrogen filling device, which solves the problem in the prior art where manual inspection and operation of high-pressure nitrogen filling are required. Improper operation and inaccurate adjustment can affect the final high-pressure nitrogen product.

[0005] The technical solution of this utility model is as follows: A high-pressure nitrogen automatic filling device includes a filling pipe connected to a gas source, and further includes a sealing box, an outlet pipe, valve plates, and a pressure gauge. One side of the sealing box is connected to the other end of the filling pipe, one end of the outlet pipe is connected to the other side of the sealing box, and the other end of the outlet pipe is in contact with the air inlet of a high-pressure container through a tensioning mechanism. The tensioning mechanism is used to lock the outlet pipe to the air inlet of the high-pressure container. Two valve plates are provided, and the two valve plates are rotatably installed in the sealing box through a swing mechanism. The swing mechanism is used to drive the two valve plates to swing relative to each other. The pressure gauge is applied to the high-pressure container.

[0006] To tighten the contact head and the force-bearing ring, the tightening mechanism includes: a contact head, a force-bearing ring, a pull ring, a tightening frame, and a moving component. The contact head is tapered and has an inflation hole. The contact head is connected to the other end of the outlet pipe. The force-bearing ring is fixedly connected to the air inlet of the high-pressure vessel. The pull ring is slidably connected to the circumferential surface of the outlet pipe. Multiple tightening frames are provided, and each tensioning frame is rotatably connected to the circumferential surface of the pull ring. The other end of each tensioning frame contacts the force-bearing ring. The moving component is located in the outlet pipe and is used to drive the pull ring to move.

[0007] To drive the pull ring to move, the moving assembly includes: a moving frame, a moving screw, and a first motor. The moving frame is fixedly connected to one side of the pull ring, the moving screw is rotatably connected to the bottom end of the air outlet pipe, the moving frame has a screw hole, the moving screw is threaded into the screw hole, and the first motor is installed at the bottom end of the air outlet pipe, with the output end of the first motor fixedly connected to the moving screw.

[0008] To drive the two valves to open and close, the swing mechanism includes: a rotating rod, a rotating gear, a gear frame, and a drive assembly. There are two rotating rods, both of which are rotatably connected inside the sealing box. The two valve plates are respectively fixedly connected to the two rotating rods. The rotating gears are respectively fixedly connected to the top ends of the two rotating rods. The gear frame is slidably connected to the top end of the sealing box through a sliding assembly. The gear frame meshes with the two rotating gears. The drive assembly is located at the top end of the sealing box and is used to drive the gear frame to move.

[0009] To drive the two rotating gears to rotate, the drive assembly includes a drive screw and a second motor. The drive screw is rotatably connected to the top of the sealing box. The gear frame has a screw hole, and the drive screw is threaded into the screw hole. The second motor is installed on the top of the sealing box, and the output end of the second motor is fixedly connected to one end of the drive screw.

[0010] To support the movement of the gear frame, the sliding assembly includes: a fixed plate and a sliding rod. Multiple fixed plates are provided, and all fixed plates are fixedly connected to the top of the sealing box. A sliding rod is fixedly connected between each pair of adjacent fixed plates. Two sliding holes are opened on the gear frame, and the two sliding rods are slidably connected in the two sliding holes respectively.

[0011] The working principle and beneficial effects of this utility model are as follows:

[0012] In this invention, the outlet pipe and the inlet are tightly fitted by a tensioning mechanism, and the two valve plates are driven to swing relative to each other by a swinging mechanism, thereby replacing the operator to automatically fill high-pressure nitrogen, reducing the possibility of improper operation and making it less likely to affect the final high-pressure nitrogen product. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0016] Figure 3This is a schematic diagram of the valve plate and swing mechanism of this utility model;

[0017] Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0018] In the diagram: 1. Filling pipe; 2. Sealing box; 3. Vent pipe; 4. Valve plate; 5. Pressure gauge; 6. Contact head; 7. Force ring; 8. Pull ring; 9. Tensioning frame; 10. Moving frame; 11. Moving screw; 12. First motor; 13. Rotating rod; 14. Rotating gear; 15. Gear frame; 16. Drive screw; 17. Second motor; 18. Fixing plate; 19. Slide rod. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1-4 As shown in the figure, this embodiment proposes an automatic high-pressure nitrogen filling device, including a filling pipe 1 connected to a gas source, and further including a sealing box 2, an outlet pipe 3, a valve plate 4, and a pressure gauge 5. One side of the sealing box 2 is connected to the other end of the filling pipe 1, and one end of the outlet pipe 3 is connected to the other side of the sealing box 2. The other end of the outlet pipe 3 is in contact with the air inlet of the high-pressure container through a tensioning mechanism. The tensioning mechanism is used to lock the outlet pipe 3 and the air inlet of the high-pressure container. There are two valve plates 4, which are rotatably set in the sealing box 2 through a swinging mechanism. The swinging mechanism is used to drive the two valve plates 4 to swing relative to each other. The pressure gauge 5 is applied to the high-pressure container. The tensioning mechanism tightly fits the outlet pipe 3 and the air inlet, and the swinging mechanism drives the two valve plates 4 to swing relative to each other, thereby replacing the operator to automatically fill the high-pressure nitrogen, reducing the possibility of improper operation and not easily affecting the final filled high-pressure nitrogen product.

[0021] The tensioning mechanism includes: a contact head 6, a force ring 7, a pull ring 8, a tensioning frame 9, and a moving component. The contact head 6 is tapered and has an inflation hole. The contact head 6 is connected to the other end of the outlet pipe 3. The force ring 7 is fixedly connected to the air inlet of the high-pressure vessel. The pull ring 8 is slidably connected to the circumferential surface of the outlet pipe 3. Multiple tensioning frames 9 are provided, and each tensioning frame 9 is rotatably connected to the circumferential surface of the pull ring 8. The other end of each tensioning frame 9 is in contact with the force ring 7. The moving component is located in the outlet pipe 3 and is used to drive the pull ring 8 to move. The moving component includes: a moving frame 10, a moving screw 11, and a first motor 12. The moving frame 10 is fixedly connected to one side of the pull ring 8. The moving screw 11 is rotatably connected to the bottom end of the outlet pipe 3. The moving frame 10 has a screw hole, and the moving screw 11 is threaded into the screw hole. The first motor 12 is installed at the bottom end of the outlet pipe 3, and the output end of the first motor 12 is fixedly connected to the moving screw 11.

[0022] The first motor 12 drives the moving screw 11 to rotate. When the moving screw 11 rotates, it drives the moving frame 10 and the pull ring 8 to move. When the pull ring 8 moves, it drives the tensioning frame 9 to press the force ring 7 onto the contact head 6, so that the contact head 6 and the force ring 7 are in close contact, thus facilitating the injection of high-pressure nitrogen into the high-pressure container.

[0023] The oscillating mechanism includes: rotating rods 13, rotating gears 14, a gear frame 15, and a drive assembly. Two rotating rods 13 are provided, both rotatably connected inside the sealing box 2. Two valve plates 4 are respectively fixedly connected to the two rotating rods 13. The rotating gears 14 are respectively fixedly connected to the top ends of the two rotating rods 13. The gear frame 15 is slidably connected to the top end of the sealing box 2 via a sliding assembly, and meshes with the two rotating gears 14. The drive assembly is located at the top end of the sealing box 2 and is used to drive the gear frame 15 to move. The drive assembly includes: a drive screw 16 and a second motor 17. The drive screw 16 is rotatably connected to the top of the sealing box 2. The gear frame 15 has a screw hole, and the drive screw 16 is threaded into the screw hole. The second motor 17 is installed at the top of the sealing box 2. The output end of the second motor 17 is fixedly connected to one end of the drive screw 16. The sliding assembly includes: a fixed plate 18 and a slide rod 19. There are multiple fixed plates 18, and all of the multiple fixed plates 18 are fixedly connected to the top of the sealing box 2. A slide rod 19 is fixedly connected between each pair of adjacent fixed plates 18. The gear frame 15 has two sliding holes, and the two slide rods 19 are slidably connected in the two sliding holes respectively.

[0024] The second motor 17 drives the drive screw 16 to rotate. When the drive screw 16 rotates, it drives the gear frame 15 to move on the slide rod 19. When the gear frame 15 moves, it drives the two rotating gears 14 and the two rotating rods 13 to rotate, thereby driving the two valve plates 4 to open. This allows for automatic adjustment of the valve opening during filling, eliminating the need for manual operation by the operator and ensuring stable filling of high-pressure nitrogen.

[0025] The working principle is as follows: When nitrogen needs to be filled into a high-pressure container, the contact head 6 is first placed against the force ring 7. Then, the first motor 12 drives the moving screw 11 to rotate. When the moving screw 11 rotates, it drives the moving frame 10 and the pull ring 8 to move. When the pull ring 8 moves, it drives the tensioning frame 9 to press the force ring 7 against the contact head 6, so that the contact head 6 and the force ring 7 are in close contact, which facilitates the filling of high-pressure nitrogen into the high-pressure container. The second motor 17 drives the drive screw 16 to rotate. When the drive screw 16 rotates, it drives the gear frame 15 to move on the slide rod 19. When the gear frame 15 moves, it drives the two rotating gears 14 and the two rotating rods 13 to rotate, which drives the two valve plates 4 to open. This automatically adjusts the valve opening during filling without the need for manual operation, thus ensuring stable filling of high-pressure nitrogen.

[0026] It should also be noted that the contact head 6 and the force ring 7 are made of rubber, which improves the sealing performance between them. The contact ends of the two valve plates 4 and the area between the valve plate 4 and the inner wall of the sealing box 2 are also made of rubber, which improves the sealing performance of the valve plate 4. The flow rate of high-pressure nitrogen is controlled by opening and closing the two valve plates 4.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-pressure nitrogen automatic filling device, comprising a filling pipe (1), wherein the filling pipe (1) is connected to a gas source, characterized in that, Also includes: The sealing box (2), the vent pipe (3), the valve plate (4) and the pressure gauge (5) are provided. One side of the sealing box (2) is connected to the other end of the filling pipe (1). One end of the vent pipe (3) is connected to the other side of the sealing box (2). The other end of the vent pipe (3) is in contact with the air inlet of the high pressure vessel through a tensioning mechanism. The tensioning mechanism is used to lock the vent pipe (3) to the air inlet of the high pressure vessel. There are two valve plates (4). The two valve plates (4) are rotatably set in the sealing box (2) through a swing mechanism. The swing mechanism is used to drive the two valve plates (4) to swing relative to each other. The pressure gauge (5) is applied to the high pressure vessel.

2. The high-pressure nitrogen automatic filling device according to claim 1, characterized in that, The tensioning mechanism includes: a contact head (6), a force ring (7), a pull ring (8), a tensioning frame (9), and a moving component. The contact head (6) is conical and has an inflation hole. The contact head (6) is connected to the other end of the outlet pipe (3). The force ring (7) is fixedly connected to the air inlet of the high-pressure vessel. The pull ring (8) is slidably connected to the circumferential surface of the outlet pipe (3). Multiple tensioning frames (9) are provided, and multiple tensioning frames (9) are rotatably connected to the circumferential surface of the pull ring (8). The other end of multiple tensioning frames (9) is in contact with the force ring (7). The moving component is provided on the outlet pipe (3) and is used to drive the pull ring (8) to move.

3. The high-pressure nitrogen automatic filling device according to claim 2, characterized in that, The moving component includes: a moving frame (10), a moving screw (11), and a first motor (12). The moving frame (10) is fixedly connected to one side of the pull ring (8). The moving screw (11) is rotatably connected to the bottom end of the air outlet pipe (3). The moving frame (10) has a screw hole, and the moving screw (11) is threaded into the screw hole. The first motor (12) is installed at the bottom end of the air outlet pipe (3), and the output end of the first motor (12) is fixedly connected to the moving screw (11).

4. The high-pressure nitrogen automatic filling device according to claim 1, characterized in that, The swing mechanism includes: a rotating rod (13), a rotating gear (14), a gear frame (15), and a drive assembly. There are two rotating rods (13), both of which are rotatably connected inside the sealing box (2). Two valve plates (4) are fixedly connected to the two rotating rods (13). The rotating gears (14) are fixedly connected to the top ends of the two rotating rods (13). The gear frame (15) is slidably connected to the top end of the sealing box (2) through a sliding assembly. The gear frame (15) meshes with the two rotating gears (14). The drive assembly is located at the top end of the sealing box (2) and is used to drive the gear frame (15) to move.

5. The high-pressure nitrogen automatic filling device according to claim 4, characterized in that, The drive assembly includes a drive screw (16) and a second motor (17). The drive screw (16) is rotatably connected to the top of the sealing box (2). A screw hole is provided on the gear frame (15). The drive screw (16) is threaded into the screw hole. The second motor (17) is installed on the top of the sealing box (2). The output end of the second motor (17) is fixedly connected to one end of the drive screw (16).

6. The high-pressure nitrogen automatic filling device according to claim 4, characterized in that, The sliding assembly includes: a fixed plate (18) and a sliding rod (19). There are multiple fixed plates (18), and all of the multiple fixed plates (18) are fixedly connected to the top of the sealing box (2). The sliding rod (19) is fixedly connected between each pair of adjacent fixed plates (18). Two sliding holes are opened on the gear frame (15), and the two sliding rods (19) are slidably connected in the two sliding holes respectively.

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