Integrated bottleneck valve suitable for high-pressure gas cylinder

Abstract

The utility model discloses an integrated bottleneck valve suitable for a high-pressure gas cylinder, which relates to the technical field of bottleneck valves and comprises a main body valve, an automatic valve is fixedly mounted at the top end of one side of the main body valve, one side of the automatic valve is communicated with a hydrogen connecting pipe, and the top end of one side of the main body valve is communicated with a gas inlet / outlet. A safety pressure relief valve is fixedly installed at the bottom end of one side of the main body valve, a pressure relief opening is formed in the surface of the side, close to the safety pressure relief valve, of the main body valve, a manual valve is fixedly installed on one side of the main body valve, and an exhaust valve is fixedly installed at the bottom end of one side of the main body valve. The device is mounted at a gas cylinder opening to control the on-off of hydrogen, when a gas cylinder supplies gas to a fuel cell and a main body valve is in a normal working state, the gas firstly passes through an overflow valve to reach an automatic valve, the automatic valve is normally closed and the automatic valve is opened, and the gas flows through a manual valve, the manual valve is normally opened, flows out from a gas inlet and outlet, reaches a hydrogen transmission pipe and flows to the fuel cell.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle mouth valves, in particular to an integrated bottle mouth valve suitable for high-pressure gas cylinders. Background Art

[0002] The valve of an on-board hydrogen storage bottle is different from the valve used in non-on-board situations. Its characteristics should be reflected in high safety, high integration, and complex monitoring. In current fuel cell vehicles, hydrogen storage bottles are often equipped with a bottle valve, and then the hydrogen is transported and monitored by assembling individual valves, pipelines, and control devices with corresponding functions. The safety and reliability are low. The common hydrogen bottle valves on the market are connected to the main valve body through external pipelines. The individual valves and components with corresponding functions are distributed around the main valve body in a separate manner. First, the hydrogen supply cannot be shut off in time when the car breaks down. Second, it cannot guarantee a stable gas supply to the fuel cell, resulting in excessive gas volume and damage to the combustion cell. Therefore, we have redesigned an integrated bottle mouth valve suitable for high-pressure gas cylinders. Utility Model Content

[0003] The purpose of the utility model is to provide an integrated bottle mouth valve suitable for high-pressure gas cylinders.

[0004] In order to solve the above technical problems, the present utility model provides the following technical solutions: a kind of integrated bottle mouth valve suitable for high-pressure gas cylinders, comprising a main body valve, an automatic valve is fixedly installed on the top of one side of the main body valve, one side of the automatic valve is connected with a hydrogen connecting pipe, the top of one side of the main body valve is connected with an air inlet and outlet, a safety pressure relief valve is fixedly installed on the bottom end of one side of the main body valve, a pressure relief port is provided on the surface of one side of the main body valve close to the safety pressure relief valve, a manual valve is fixedly installed on one side of the main body valve, an exhaust valve is fixedly installed on the bottom end of one side of the main body valve, and a pressure sensor is fixedly installed on the surface of one side of the main body valve.

[0005] Preferably, the main valve, an automatic valve is fixedly installed on the top of one side of the main valve, characterized in that: one side of the automatic valve is connected with a hydrogen connecting pipe, the top of one side of the main valve is connected with an air inlet and outlet, a safety pressure relief valve is fixedly installed on the bottom end of one side of the main valve, a pressure relief port is provided on the surface of one side of the main valve close to the safety pressure relief valve, a manual valve is fixedly installed on one side of the main valve, an exhaust valve is fixedly installed on the bottom end of one side of the main valve, and a pressure sensor is fixedly installed on the surface of one side of the main valve.

[0006] Preferably, a display panel is fixedly installed on the front side of the main valve, a connecting shaft is rotatably connected to the edge surface of one side of the main valve, a sealing dust cover is fixedly connected to one side of the connecting shaft, an observation window is fixedly installed on one side surface of the sealing dust cover, a positive magnetic block is fixedly installed on the bottom end surface of one side of the sealing dust cover, and a negative magnetic block is fixedly installed on the top end surface of one side of the main valve.

[0007] Preferably, the positions of the positive magnetic block and the negative magnetic block correspond one to one, the connection between the positive magnetic block and the negative magnetic block is a magnetic adsorption connection, and the connection between the sealing dust cover and the main valve is a movable snap connection.

[0008] Preferably, the temperature sensor and the overflow valve are located on the top surface of the same side of the hydrogen transmission pipe, and the overflow valve and the one-way valve are located on the top surface of the same side of the hydrogen transmission pipe.

[0009] Preferably, the pressure sensor is located between the manual valve and the exhaust valve, and the manual valve and the pressure relief port are symmetrically distributed on both side top surfaces of the main valve.

[0010] Compared with related technologies, the integrated bottle mouth valve for high-pressure gas cylinders provided by the present invention has the following beneficial effects:

[0011] The utility model provides an integrated bottle mouth valve suitable for high-pressure gas cylinders. The device is installed at the outlet of the gas cylinder to control the on and off of hydrogen. When the gas cylinder supplies gas to the fuel cell, when the main valve is in normal working state, the gas first passes through the overflow valve and reaches the automatic valve. The automatic valve is normally closed. When the automatic valve is opened, the gas flows through the manual valve. The manual valve is normally open and flows out from the gas inlet and outlet, reaches the hydrogen transmission pipe, and flows to the fuel cell; when the automatic valve fails, the automatic valve is closed and cannot be opened, and the gas flows out from the exhaust channel. At this time, the exhaust valve is opened, and the gas directly reaches the gas inlet and outlet through the exhaust valve and flows to the hydrogen transmission pipe, thereby ensuring the safety of the system or continuously supplying hydrogen to the fuel cell; when the device is in normal working state, components in the downstream hydrogen supply system fail or are damaged, resulting in increased hydrogen emissions. At this time, the overflow valve works to play a throttling role.

[0012] The utility model provides an integrated bottle mouth valve suitable for high-pressure gas cylinders. The position of the sealing dust cover can be adjusted by rotating the connecting shaft, and the sealing dust cover is used to achieve a dust-proof protection effect on the front surface of the main valve. An observation window is provided on the sealing dust cover to facilitate observation of display data on the display panel, so as to facilitate and timely use reminders. The adsorption of the positive magnetic block and the negative magnetic block can increase the sealing operation of the sealing dust cover on the front surface of the main valve, thereby enhancing the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall side view of the device of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the hydrogen transmission pipe of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the sealing dust cover of the present invention.

[0017] Numbers in the figure: 1. Main valve; 2. Automatic valve; 3. Hydrogen connecting pipe; 4. Air inlet and outlet; 5. Safety pressure relief valve; 6. Pressure relief port; 7. Manual valve; 8. Exhaust valve; 9. Pressure sensor; 10. Hydrogen transmission pipe; 11. Temperature sensor; 12. Overflow valve; 13. One-way valve; 14. Display panel; 15. Connecting shaft; 16. Sealing dust cover; 17. Observation window; 18. Positive magnetic block; 19. Negative magnetic block. DETAILED DESCRIPTION Example

[0018] See also Figure 1-4 The utility model provides a technical solution: a kind of integrated bottle mouth valve suitable for high-pressure gas cylinders, comprising a main body valve 1, an automatic valve 2 is fixedly installed on the top of one side of the main body valve 1, a hydrogen connecting pipe 3 is connected to one side of the automatic valve 2, an inlet and outlet 4 is connected to the top of one side of the main body valve 1, a safety pressure relief valve 5 is fixedly installed on the bottom of one side of the main body valve 1, a pressure relief port 6 is opened on the surface of one side of the main body valve 1 close to the safety pressure relief valve 5, a manual valve 7 is fixedly installed on one side of the main body valve 1, an exhaust valve 8 is fixedly installed on the bottom of one side of the main body valve 1, a pressure sensor 9 is fixedly installed on the surface of one side of the main body valve 1, and the main body is provided with a plurality of airtight seals. The top of one side of the back side of the valve 1 is connected to a hydrogen transmission pipe 10, the top of one side of the hydrogen transmission pipe 10 is connected to a temperature sensor 11, the top of one side of the hydrogen transmission pipe 10 is fixedly connected to a relief valve 12, the top of one side of the hydrogen transmission pipe 10 is fixedly connected to a one-way valve 13, the temperature sensor 11 and the relief valve 12 are located on the top surface of the same side of the hydrogen transmission pipe 10, the relief valve 12 and the one-way valve 13 are located on the top surface of the same side of the hydrogen transmission pipe 10, the pressure sensor 9 is located between the manual valve 7 and the exhaust valve 8, and the manual valve 7 and the pressure relief port 6 are symmetrically distributed on the top surfaces of both sides of the main valve 1.

[0019] In the implementation plan, this device is installed at the outlet of the gas cylinder to control the on and off of hydrogen. When the gas cylinder supplies gas to the fuel cell, when the main valve 1 is in normal working condition, the gas first passes through the overflow valve 12 and reaches the automatic valve 2. The automatic valve 2 is normally closed. When the automatic valve 2 is opened, the gas flows through the manual valve 7. The manual valve 7 is normally open and flows out from the gas inlet and outlet 4 to the hydrogen transmission pipe 10 and flows to the fuel cell; when the automatic valve 2 fails, the automatic valve 2 is closed and cannot be opened, and the gas flows out from the exhaust channel. At this time, the exhaust valve 8 is opened, and the gas passes through the exhaust valve 8 directly to the gas inlet and outlet 4 and flows to the hydrogen transmission pipe 10 to ensure the safety of the system or continue to supply hydrogen to the fuel cell; when this device is in normal working condition, components in the downstream hydrogen supply system fail or are damaged, resulting in increased hydrogen emissions. At this time, the overflow valve 12 works to play a throttling role. Example

[0020] See also Figure 1-4 The utility model provides a technical solution: a high-pressure gas cylinder integrated bottle mouth valve, comprising a main valve 1 with a display panel 14 fixedly mounted on the front side, a connecting shaft 15 rotatably connected to the edge surface of one side of the main valve 1, a sealing dust cover 16 fixedly connected to one side of the connecting shaft 15, an observation window 17 fixedly mounted on one side surface of the sealing dust cover 16, a positive magnetic block 18 fixedly mounted on the bottom end surface of one side of the sealing dust cover 16, a negative magnetic block 19 fixedly mounted on the top surface of one side of the main valve 1, the positions of the positive magnetic block 18 and the negative magnetic block 19 correspond one to one, the connection relationship between the positive magnetic block 18 and the negative magnetic block 19 is a magnetic adsorption connection, and the connection relationship between the sealing dust cover 16 and the main valve 1 is a movable snap connection.

[0021] In the implementation scheme, the position of the sealing dust cover 16 can be adjusted by rotating the connecting shaft 15, and the sealing dust cover 16 is used to achieve a protective dustproof effect on the front surface of the main valve 1. An observation window 17 is set on the sealing dust cover 16 to facilitate observation of the display data on the display panel 14, so as to facilitate timely use reminders. The adsorption of the positive magnetic block 18 and the negative magnetic block 19 can increase the sealing operation of the sealing dust cover 16 on the front surface of the main valve 1, thereby enhancing the protective effect.

[0022] Working principle:

[0023] By installing this device at the outlet of the gas cylinder, the hydrogen on and off is controlled. When the gas cylinder supplies gas to the fuel cell, when the main valve 1 is in normal working condition, the gas first passes through the overflow valve 12 and reaches the automatic valve 2. The automatic valve 2 is normally closed. When the automatic valve 2 is opened, the gas flows through the manual valve 7. The manual valve 7 is normally open and flows out from the gas inlet and outlet 4 to the hydrogen transmission pipe 10 and flows to the fuel cell; when the automatic valve 2 fails, the automatic valve 2 is closed and cannot be opened, and the gas flows out from the exhaust channel. At this time, the exhaust valve 8 is opened, and the gas directly reaches the gas inlet and outlet 4 through the exhaust valve 8 and flows to the hydrogen transmission pipe 10, ensuring the safety of the system or continuously supplying hydrogen to the fuel cell; when this device is in normal working condition, components in the downstream hydrogen supply system fail or are damaged, resulting in increased hydrogen emissions. At this time, the overflow valve 12 works to play a throttling role;

[0024] By rotating the connecting shaft 15, the position of the sealing dust cover 16 can be adjusted, and the sealing dust cover 16 is used to achieve a dust-proof protection effect on the front surface of the main valve 1. An observation window 17 is set on the sealing dust cover 16 to facilitate observation of the display data on the display panel 14, so as to facilitate and timely use reminders. The adsorption of the positive magnetic block 18 and the negative magnetic block 19 can increase the sealing operation of the sealing dust cover 16 on the front surface of the main valve 1, thereby enhancing the protection effect.

Claims

1. An integrated bottle mouth valve for high-pressure gas cylinders, comprising a main valve (1), an automatic valve (2) fixedly mounted on the top end of one side of the main valve (1), characterized in that: One side of the automatic valve (2) is connected to a hydrogen connecting pipe (3), the top end of one side of the main valve (1) is connected to an air inlet and outlet (4), a safety pressure relief valve (5) is fixedly installed at the bottom end of one side of the main valve (1), a pressure relief port (6) is provided on the surface of one side of the main valve (1) close to the safety pressure relief valve (5), a manual valve (7) is fixedly installed on one side of the main valve (1), an exhaust valve (8) is fixedly installed at the bottom end of one side of the main valve (1), and a pressure sensor (9) is fixedly installed on the surface of one side of the main valve (1).

2. The integrated bottle mouth valve for high-pressure gas cylinders according to claim 1, characterized in that: The top end of one side of the back side of the main valve (1) is connected to a hydrogen transmission pipe (10), the top end of one side of the hydrogen transmission pipe (10) is connected to a temperature sensor (11), the top end of one side of the hydrogen transmission pipe (10) is fixedly connected to an overflow valve (12), and the top end of one side of the hydrogen transmission pipe (10) is fixedly connected to a one-way valve (13).

3. The integrated bottle mouth valve for high-pressure gas cylinders according to claim 1, characterized in that: A display panel (14) is fixedly mounted on the front side of one side of the main valve (1), a connecting shaft (15) is rotatably connected to an edge surface of one side of the main valve (1), a sealing dust cover (16) is fixedly connected to one side of the connecting shaft (15), an observation window (17) is fixedly mounted on one side surface of the sealing dust cover (16), a positive magnetic block (18) is fixedly mounted on one side bottom surface of the sealing dust cover (16), and a negative magnetic block (19) is fixedly mounted on one side top surface of the main valve (1).

4. The integrated bottle mouth valve for high-pressure gas cylinders according to claim 3, characterized in that: The positions of the positive magnetic block (18) and the negative magnetic block (19) correspond one to one, the connection relationship between the positive magnetic block (18) and the negative magnetic block (19) is a magnetic adsorption connection, and the connection relationship between the sealing dust cover (16) and the main valve (1) is a movable clamping connection.

5. The integrated bottle mouth valve for high-pressure gas cylinders according to claim 2, characterized in that: The temperature sensor (11) and the overflow valve (12) are located on the top surface of the same side of the hydrogen transmission pipe (10), and the overflow valve (12) and the one-way valve (13) are located on the top surface of the same side of the hydrogen transmission pipe (10).

6. The integrated bottle mouth valve for high-pressure gas cylinders according to claim 1, characterized in that: The pressure sensor (9) is located between the manual valve (7) and the exhaust valve (8), and the manual valve (7) and the pressure relief port (6) are symmetrically distributed on both sides of the top surface of the main valve (1).

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