High pressure bottle neck valve and gas reservoir

Abstract

The utility model provides a kind of high-pressure bottle mouth valve, high-pressure bottle mouth valve is used to open and close gas storage tank, high-pressure bottle mouth valve includes the plug body for plugging into gas storage tank, the valve body being arranged outside gas storage tank, first passage extending along the axial direction is equipped in plug body, the inflating check valve for being communicated with first passage to inject gas into first passage, electromagnetic switch valve being communicated with first passage, pressure reducing valve being communicated with electromagnetic switch valve, outlet being communicated with pressure reducing valve are equipped on valve body, when exhausting, gas enters first passage, electromagnetic switch valve is powered on and opened, after gas enters electromagnetic switch valve, pressure reducing valve is entered to reduce pressure, and then is discharged from outlet. The utility model discloses a high-pressure bottle mouth valve by integrating electromagnetic switch valve in valve body, realizes the automatic and remote control of gas supply system on-off, fundamentally improves the operation convenience and security.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a high-pressure bottle neck valve and a gas storage tank. Background Technology

[0002] With the development of the world economy, energy and environmental issues are becoming a focus of attention for all countries and are gradually becoming a hot topic in the field of power system technology research. Fuel cell technology, as a clean and efficient power device, generates electricity through the chemical reaction of hydrogen and oxygen, which can be used in various fields of production and life. Its only byproduct is water, making it a clean technology.

[0003] When a drone's fuel cell system uses high-pressure hydrogen storage as its energy source, the corresponding high-pressure hydrogen cylinder and its valve are the most critical components of the gas supply system, significantly impacting the drone's range and control performance. The valve integrates components such as a check valve, safety valve, pressure reducing valve, and solenoid valve, controlling the sealing, on / off, and pressure reduction functions of the hydrogen fuel cell system on the drone. Currently, almost all similar products cannot achieve the integration and remote control of a drone's high-pressure hydrogen storage supply system.

[0004] In view of this, it is necessary to improve the existing high-pressure bottle valve to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-pressure bottle neck valve to solve the problem that existing bottle neck valves cannot be remotely controlled.

[0006] To achieve the above objectives, this utility model provides a high-pressure bottle neck valve for opening and closing a gas storage tank. The high-pressure bottle neck valve includes a plug for inserting into the gas storage tank and a valve body disposed outside the gas storage tank. The plug has a first channel extending axially. The valve body has an inflation check valve connected to the first channel for injecting gas into the first channel, an electromagnetic switch valve connected to the first channel, a pressure reducing valve connected to the electromagnetic switch valve, and an outlet connected to the pressure reducing valve. During exhaust, gas enters the first channel, the electromagnetic switch valve is energized and opened, the gas enters the electromagnetic switch valve and then enters the pressure reducing valve for pressure reduction, and then exits from the outlet.

[0007] As a further improvement of this utility model, there are two pressure reducing valves, namely a first pressure reducing valve and a second pressure reducing valve. The first pressure reducing valve is connected to the electromagnetic switch valve through a second channel, and the second pressure reducing valve is connected to the first pressure reducing valve through a third channel.

[0008] As a further improvement of this utility model, the first pressure reducing valve and the second pressure reducing valve are disposed opposite to each other at both ends of the valve body, and the second channel and the third channel both extend in a horizontal direction perpendicular to the axial direction.

[0009] As a further improvement of this utility model, a pressure sensor is also provided on the valve body. The pressure sensor is connected to the first channel through a fourth channel, which extends in a horizontal direction perpendicular to the axial direction.

[0010] As a further improvement of this utility model, the valve body is also provided with a temperature-triggered safety valve, which is connected to the first channel through a fifth channel, and the fifth channel extends in a horizontal direction perpendicular to the axial direction.

[0011] As a further improvement of this utility model, the valve body is also provided with a pressure-triggered safety valve, which is connected to the first channel through a sixth channel, and the sixth channel extends axially.

[0012] As a further improvement of this utility model, the electromagnetic switch valve is provided with an electrical interface for connecting the drive power supply of the electromagnetic switch valve.

[0013] As a further improvement of this utility model, the plug body is provided with connecting threads and O-rings for connecting with the gas storage tank.

[0014] As a further improvement of this utility model, the inflation check valve is provided with a filter screen inside or on the inlet side, and retaining rings and elastic elements are respectively arranged at both ends of the filter screen along the axial direction of the inflation check valve.

[0015] This utility model also provides a gas storage tank, which includes a tank body with a tank opening and a high-pressure bottle valve as described above, the high-pressure bottle valve being used to open and close the tank opening.

[0016] The beneficial effects of this utility model are as follows: By integrating the electromagnetic switch valve into the valve body, the high-pressure bottle valve of this utility model realizes automatic and remote control of the gas supply system, fundamentally improving the ease of operation and safety; by highly integrating all components such as the gas filling check valve, multi-stage pressure reducing valve, pressure-triggered safety valve, and temperature-triggered safety valve into a single valve body and replacing external pipelines with internal channels, potential leakage points are greatly reduced, and the sealing reliability and structural compactness of the system are significantly improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the gas storage tank of this utility model; Figure 2 This is a three-dimensional structural diagram of the high-pressure bottle valve of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the high-pressure bottle valve of this utility model along the horizontal direction. Figure 4 This is a schematic diagram of another cross-sectional structure of the high-pressure bottle valve of this utility model along the horizontal direction. Figure 5 This is a schematic diagram of the cross-sectional structure of the high-pressure bottle valve of this utility model along the vertical direction. Figure 6 This is another partial cross-sectional view of the high-pressure bottle valve of this utility model along the vertical direction. Figure 7 This is a partial cross-sectional view of the high-pressure bottle valve of this utility model. Figure 8 This is a partial structural schematic diagram of the high-pressure bottle valve of this utility model. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] like Figures 1 to 8As shown, the high-pressure bottle valve 1 of this utility model is used to open and close the gas storage tank 100. The high-pressure bottle valve 1 includes a plug body 11 for inserting into the gas storage tank 100 and a valve body 12 disposed outside the gas storage tank 100.

[0022] This embodiment uses hydrogen storage as an example for illustration.

[0023] The plug body 11 has a first channel 110 extending axially inside. The valve body 12 has an inflation check valve 121 connected to the first channel 110 to inject gas into the first channel 110, an electromagnetic switch valve 122 connected to the first channel 110, a pressure reducing valve connected to the electromagnetic switch valve 122, and an outlet 123 connected to the pressure reducing valve. When venting, gas enters the first channel 110, the electromagnetic switch valve 122 is energized and opened, the gas enters the electromagnetic switch valve 122 and then enters the pressure reducing valve for pressure reduction, and then is discharged from the outlet 123.

[0024] The plug 11 seals the gas storage tank 100 along the axial direction. When filling the tank, the gas enters the gas storage tank 100 through the first channel 110. When venting the gas, the high-pressure gas in the tank also first gathers in the first channel 110.

[0025] The one-way valve 121 allows for one-way gas supply, ensuring safe filling. After filling, the one-way valve prevents gas leakage from the cylinder, thus ensuring the safety and reliability of hydrogen storage.

[0026] The electromagnetic switch valve 122 can be energized and opened after receiving an electrical signal, allowing gas to flow to subsequent components, thereby realizing remote gas release operation. When de-energized and closed, it can seal the high-pressure gas in the gas cylinder and the first channel 110, and the system is in a safe shut-off state.

[0027] Pressure reducing valves lower high-pressure gas to the operating pressure required by downstream equipment, which is crucial for ensuring the safe and stable operation of fuel cells.

[0028] After undergoing system pressure reduction treatment, the gas is finally discharged through the exhaust channel, where it delivers hydrogen or other gases at suitable pressure and with controllable flow to the downstream drone fuel cell system.

[0029] In this embodiment, the inflation check valve 121, the solenoid switch valve 122, and the pressure reducing valve are all integrated on the valve body 12 and interconnected through the internal channels. No pipe joints are required, which can effectively improve the sealing reliability. At the same time, after the entire gas storage tank 100 is assembled, it can achieve fully automatic operation or remote control operation without the need for direct operation by the operator.

[0030] There are two pressure reducing valves, namely a first pressure reducing valve 124 and a second pressure reducing valve 125. The first pressure reducing valve 124 is connected to the electromagnetic switch valve 122 through a second channel 1241, and the second pressure reducing valve 125 is connected to the first pressure reducing valve 124 through a third channel 1251.

[0031] The first pressure reducing valve 124 performs initial pressure reduction, lowering the extremely high gas pressure to an intermediate pressure. Precise pressure reduction is then performed, bringing the intermediate pressure down to the stable low pressure required by the fuel cell. This multi-stage pressure reduction improves control accuracy and system safety. In some embodiments, even more stages of pressure reducing valves may be provided.

[0032] The first pressure reducing valve 124 and the second pressure reducing valve 125 are disposed opposite to each other at both ends of the valve body 12, and the second channel 1241 and the third channel 1251 both extend in a horizontal direction perpendicular to the axial direction.

[0033] The first pressure-reducing valve 124 and the second pressure-reducing valve 125 are respectively arranged at both ends of the valve body 12, which is equivalent to utilizing the maximum usable length of the valve body 12 and avoiding the need to stack the two valve bodies 12 on the same side, thereby greatly reducing the radial dimension of the valve body 12. The pressure reduction process is a gas expansion and heat absorption process, and the valve body 12 will experience a local temperature drop. Arranging the two-stage pressure-reducing valves at both ends is equivalent to setting a natural physical gap between them, which helps to prevent the two-stage pressure-reducing valves from interfering with each other at low temperatures due to being too close, and is conducive to the uniform temperature distribution of the valve body 12. This avoids material embrittlement or sealing failure problems that may be caused by local overcooling, and improves the safety and stability of long-term operation.

[0034] The second channel 1241 and the third channel 1251 extend in a horizontal direction perpendicular to the axial direction, which means that the gas flow channel is an internal channel directly machined in the valve body 12, rather than an external pipeline that requires additional assembly.

[0035] The valve body 12 is also provided with a pressure sensor 126, which is connected to the first channel 110 through a fourth channel 1261, which extends in a horizontal direction perpendicular to the axial direction.

[0036] Through a short, axially perpendicular fourth channel 1261, the pressure sensor 126 can directly and in real time monitor the actual pressure inside the gas storage tank 100. This provides critical safety monitoring and data feedback for the gas outlet valve. Its flow channel form integrated into the valve body 12 further eliminates the risk of leakage that may be caused by external pipelines, and further enhances the compactness and reliability of the entire gas supply system.

[0037] The valve body 12 is also provided with a temperature-triggered safety valve 127, which is connected to the first channel 110 through a fifth channel 1271, which extends in a horizontal direction perpendicular to the axial direction.

[0038] By setting a temperature-triggered safety valve 127, it is ensured that when the temperature rises abnormally, the temperature-triggered safety valve 127 can quickly and accurately sense the actual state of the gas cylinder source and immediately start depressurization, providing the system with the most direct and reliable thermal safety protection under extreme conditions. At the same time, its integrated structure also avoids the risk of leakage and response delay that may exist in external pipelines.

[0039] The valve body 12 is also equipped with a pressure-triggered safety valve 128, which is connected to the first channel 110 via a sixth channel 1281 extending axially. The pressure-triggered safety valve 128 provides the most direct and unobstructed connection path to the gas cylinder source, enabling it to instantly sense the core pressure of the system and achieve a millisecond-level rapid release response when the pressure is abnormally high, providing the most critical and reliable overpressure safety protection for the entire gas storage tank 100.

[0040] The electromagnetic switch valve 122 is provided with an electrical interface 1221 for connecting the drive power supply of the electromagnetic switch valve 122. The electrical connection is achieved by setting the electrical interface 1221 to supply power to the electromagnetic switch valve 122.

[0041] like Figure 7 As shown, the plug body 11 is provided with a connecting thread 111 and an O-ring 112 for connecting with the gas storage tank 100. The connecting thread 111 is used to connect with the gas storage tank 100, and the O-ring 112 is used to improve the sealing of the connection.

[0042] like Figure 8 As shown, the inflation check valve 121 is provided with a filter screen 1212 inside or on the inlet side, and retaining rings 1211 and elastic elements 1213 respectively disposed at both ends of the filter screen 1212 along the axial direction of the inflation check valve 121. The retaining rings 1211 fix the filter screen axially to prevent displacement of the filter screen axially, while the elastic elements 1213 provide a certain sealing performance to prevent air leakage.

[0043] The gas storage tank 100 includes a tank body 2 with a tank opening and a high-pressure bottle valve 1, which is used to open and close the tank opening.

[0044] The high-pressure bottle valve 1 of this utility model integrates the electromagnetic switch valve 122 into the valve body 12, realizing automatic and remote control of the gas supply system, fundamentally improving the ease of operation and safety. By highly integrating all components such as the inflation check valve 121, multi-stage pressure reducing valve, pressure-triggered safety valve 128, and temperature-triggered safety valve 127 into a single valve body 12 and replacing external pipelines with internal channels, potential leakage points are greatly reduced, significantly improving the sealing reliability and structural compactness of the system. By setting a filter screen fixing structure composed of a retaining ring 1211 and an elastic element 1213 at the inlet of the inflation check valve 121, the filter screen 1212 is firmly installed and effectively sealed, blocking the risk of external impurities entering. Finally, by arranging the first and second pressure reducing valves 125 opposite to each other at both ends of the valve body 12, the flow channel design is optimized, thermal management is improved, and internal stress is balanced, thereby achieving efficient, stable, and safe multi-stage pressure reduction function within the limit space.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-pressure bottle neck valve (1) for opening and closing a gas storage tank (100), characterized in that: The high-pressure bottle valve (1) includes a plug (11) for inserting into the gas storage tank (100) and a valve body (12) disposed outside the gas storage tank (100). The plug (11) has a first channel (110) extending axially inside. The valve body (12) is provided with an inflation check valve (121) connected to the first channel (110) for injecting gas into the first channel (110), an electromagnetic switch valve (122) connected to the first channel (110), a pressure reducing valve connected to the electromagnetic switch valve (122), and an outlet (123) connected to the pressure reducing valve. When venting, gas enters the first channel (110), the electromagnetic switch valve (122) is energized and opened, and the gas enters the electromagnetic switch valve (122) and then enters the pressure reducing valve for pressure reduction, and then is discharged from the outlet (123).

2. The high-pressure bottle valve according to claim 1, characterized in that: There are two pressure reducing valves, namely a first pressure reducing valve (124) and a second pressure reducing valve (125). The first pressure reducing valve (124) is connected to the electromagnetic switch valve (122) through a second channel (1241), and the second pressure reducing valve (125) is connected to the first pressure reducing valve (124) through a third channel (1251).

3. The high-pressure bottle valve according to claim 2, characterized in that: The first pressure reducing valve (124) and the second pressure reducing valve (125) are disposed opposite to each other at both ends of the valve body (12), and the second channel (1241) and the third channel (1251) both extend in a horizontal direction perpendicular to the axial direction.

4. The high-pressure bottle neck valve according to claim 1, characterized in that: The valve body (12) is also provided with a pressure sensor (126), which is connected to the first channel (110) through a fourth channel (1261) which extends in a horizontal direction perpendicular to the axial direction.

5. The high-pressure bottle neck valve according to claim 1, characterized in that: The valve body (12) is also provided with a temperature-triggered safety valve (127), which is connected to the first channel (110) through a fifth channel (1271) which extends in a horizontal direction perpendicular to the axial direction.

6. The high-pressure bottle neck valve according to claim 1, characterized in that: The valve body (12) is also provided with a pressure-triggered safety valve (128), which is connected to the first channel (110) through a sixth channel (1281) which extends axially.

7. The high-pressure bottle neck valve according to claim 1, characterized in that: The electromagnetic switch valve (122) is provided with an electrical interface (1221) for connecting the drive power supply of the electromagnetic switch valve (122).

8. The high-pressure bottle neck valve according to claim 1, characterized in that: The plug (11) is provided with a connecting thread (111) and an O-ring (112) for connecting with the gas storage tank (100).

9. The high-pressure bottle neck valve according to claim 1, characterized in that: The inflation check valve (121) is provided with a filter screen (1212) inside or on the inlet side, and retaining rings (1211) and elastic elements (1213) respectively arranged at both ends of the filter screen (1212) along the axial direction of the inflation check valve (121).

10. A gas storage tank, characterized in that: The gas storage tank (100) includes a tank body (2) with a tank opening and a high-pressure bottle opening valve (1) as described in any one of claims 1-9, the high-pressure bottle opening valve (1) being used to open and close the tank opening.

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