Metering mechanism of hydrogen supply device

Abstract

The utility model provides a metering mechanism of a hydrogen supply device, which belongs to the technical field of hydrogen supply and comprises a hydrogen supply device body. The hydrogen outlet flow controller is arranged on one side of the lower end of the hydrogen supply device body; the flow collector is arranged on the other side of the lower end of the hydrogen supply device body; the liquid inlet flow controller is arranged in the hydrogen supply device body; the hydrogen supply device comprises a hydrogen supply device body, a filtering device and a gas-liquid separation device, the filtering device and the gas-liquid separation device are both arranged in the hydrogen supply device body, through combined use of hydrogen outlet flow control and liquid inlet flow control, the generation rate and the output flow of hydrogen can be accurately controlled, and the stability and the accuracy of hydrogen supply are ensured; the flow of hydrogen can be monitored in real time through flow collection, and the flow control of hydrogen output can be adjusted in real time, so that the accurate control on the hydrogen supply amount is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen supply, and particularly relates to a metering mechanism of a hydrogen supply device. Background Art

[0002] A hydrogen supply device is a device used to provide hydrogen, which is widely used in multiple fields such as chemical industry, energy, scientific research, etc. In these applications, hydrogen is usually used as a raw material, fuel, reducing agent, etc. for chemical reactions. In order to ensure the efficient utilization and safe supply of hydrogen, parameters such as the flow rate, pressure, and temperature of hydrogen need to be precisely controlled.

[0003] Traditional hydrogen supply devices lack an accurate flow control mechanism, resulting in unstable hydrogen supply, affecting production efficiency and product quality. Moreover, traditional devices often do not have sufficient monitoring means to real-time monitor key parameters such as the pressure and temperature of hydrogen, making it difficult to ensure the quality of hydrogen. Content of the Utility Model

[0004] The purpose of the utility model is to provide a metering mechanism of a hydrogen supply device, aiming to solve the problems in the existing hydrogen supply devices, that is, the lack of an accurate flow control mechanism leads to unstable hydrogen supply, affecting production efficiency and product quality, and traditional devices often do not have sufficient monitoring means to real-time monitor key parameters such as the pressure and temperature of hydrogen, making it difficult to ensure the quality of hydrogen.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The metering mechanism of the hydrogen supply device includes:

[0007] The hydrogen supply device body;

[0008] The hydrogen outlet flow control, which is arranged on one side of the lower end of the hydrogen supply device body;

[0009] The flow rate acquisition, which is arranged on the other side of the lower end of the hydrogen supply device body;

[0010] The liquid inlet flow control, which is arranged inside the hydrogen supply device body;

[0011] The filtering device and the gas-liquid separation device, both of which are arranged inside the hydrogen supply device body.

[0012] As a preferred scheme of the utility model, the side end of the hydrogen supply device body is provided with a nitrogen flow rate, a nitrogen inlet valve, a first outlet valve, a second outlet valve, and an inlet valve.

[0013] As a preferred embodiment of the present utility model, a nitrogen pressure sensor, a nitrogen pressure gauge, a temperature sensor, a pressure gauge, a hydrogen temperature sensor, and a hydrogen pressure gauge are connected to the side end of the hydrogen supply device body.

[0014] As a preferred embodiment of the present utility model, a hydrogen outlet valve, a hydrogen stop valve, a hydrogen sampling valve, and a sampling test valve are provided at the side end of the hydrogen supply device body.

[0015] As a preferred embodiment of the present utility model, a hydrogen discharge valve and a nitrogen discharge valve are provided at the side end of the hydrogen supply device body.

[0016] As a preferred embodiment of the present utility model, a door panel is rotatably connected to the side end of the hydrogen supply device body through a rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. In this solution, by combining the use of hydrogen output flow control and liquid inlet flow control, the generation rate and output flow of hydrogen can be accurately controlled, ensuring the stability and accuracy of hydrogen supply. Flow acquisition can monitor the hydrogen flow in real time, which helps to adjust the hydrogen output flow control in real time, thereby achieving precise control of the hydrogen supply volume. Through monitoring devices such as nitrogen pressure sensors, hydrogen temperature sensors, and hydrogen pressure gauges, the operating state of the system can be comprehensively monitored to ensure that the quality and supply conditions of hydrogen always meet the requirements.

[0019] 2. In this solution, by setting multiple valves, nitrogen inlet valves, etc., as well as monitoring devices such as pressure sensors and temperature sensors, abnormal situations can be detected and measures can be taken in a timely manner to reduce potential safety risks. The reasonably designed liquid accumulation discharge system can effectively handle the generated liquid accumulation, prevent the liquid accumulation from affecting the quality of hydrogen, and is monitored through the liquid accumulation temperature sensor and the liquid accumulation pressure gauge to ensure the stable operation of the system. The settings of the hydrogen discharge valve and the nitrogen discharge valve enable the rapid discharge of gas in case of an emergency, ensuring the safety of the system. The design of the door panel allows operators to easily access the interior of the hydrogen supply device body, facilitating daily maintenance and troubleshooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0021] Figure 1 is the front view of the present utility model;

[0022] Figure 2 is the side view of the present utility model;

[0023] Figure 3 This is a perspective view of the present utility model.

[0024] In the figure: 1. Hydrogen supply device body; 2. Hydrogen output flow control; 3. Flow rate acquisition; 4. Liquid inlet flow control; 5. Filter device; 6. Gas-liquid separation device; 7. Nitrogen flow rate; 8. Nitrogen inlet valve; 9. First outlet valve; 10. Second outlet valve; 11. Inlet valve; 12. Nitrogen pressure sensor; 13. Nitrogen pressure gauge; 14. Temperature sensor; 15. Pressure gauge; 16. Hydrogen temperature sensor; 17. Hydrogen pressure gauge; 18. Hydrogen outlet valve; 19. Hydrogen stop valve; 20. Hydrogen sampling valve; 21. Sampling test valve; 22. Hydrogen discharge valve; 23. Nitrogen discharge valve; 24. Door panel. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] Please refer to Figures 1-3 , the present utility model provides the following technical solutions:

[0028] The metering mechanism of the hydrogen supply device includes:

[0029] Hydrogen supply device body 1;

[0030] Hydrogen output flow control 2, which is arranged on one side of the lower end of the hydrogen supply device body 1;

[0031] Flow rate acquisition 3, which is arranged on the other side of the lower end of the hydrogen supply device body 1;

[0032] Liquid inlet flow control 4, which is arranged inside the hydrogen supply device body 1;

[0033] Filter device 5 and gas-liquid separation device 6, both of which are arranged inside the hydrogen supply device body 1.

[0034] In a specific embodiment of the present utility model, the hydrogen supply device body 1 is the basic part of the entire metering mechanism and contains all control and monitoring elements. The hydrogen output flow control 2 is arranged on one side of the lower end of the hydrogen supply device body 1 and is used to control the outflow speed of hydrogen to ensure the stability of hydrogen supply. The flow rate acquisition 3 is arranged on the other side of the lower end of the hydrogen supply device body 1 and is used to monitor and record the flow rate data of hydrogen in real time for facilitating the control and adjustment of the hydrogen supply quantity. The liquid input flow control 4 is arranged inside the hydrogen supply device body 1 and is used to control the flow rate of the liquid entering the hydrogen supply device, such as hydrogen-containing liquid, to ensure the stability and controllability during the hydrogen generation process. The filtering device 5 is arranged inside the hydrogen supply device body 1 and is used to remove impurities in the liquid to ensure the purity of hydrogen. The gas-liquid separation device 6 is also arranged inside the hydrogen supply device body 1 and is used to separate the generated hydrogen from the liquid to ensure the purity and dryness of hydrogen.

[0035] For details, please refer to Figures 1-3 , on the side end of the hydrogen supply device body 1, there are arranged a nitrogen flow rate 7, a nitrogen inlet valve 8, a first outlet valve 9, a second outlet valve 10 and an inlet valve 11.

[0036] In this embodiment: The nitrogen flow rate 7 is the part for measuring or indicating the nitrogen flow rate. Nitrogen is used to purge the system, displace air or serve as an auxiliary gas to help control the production and transportation environment of hydrogen. The nitrogen inlet valve 8 is used to control the process of nitrogen entering the hydrogen supply device body 1 and can be used for operations such as purging before system startup and inerting after shutdown. The first outlet valve 9 is used to discharge the liquid accumulated inside the hydrogen supply device body. Usually, this kind of liquid is a by-product generated during the production process or unreacted raw materials and needs to be discharged regularly or as required. The second liquid accumulation outlet valve 10 is another valve for discharging liquid accumulation. It has a similar function to the first valve but is used for different liquid accumulations or under different operating conditions. The inlet valve 11 is used to introduce the liquid containing hydrogen into the hydrogen supply device body 1 for further processing and hydrogen extraction.

[0037] For details, please refer to Figures 1-3 , on the side end of the hydrogen supply device body 1, there are connected a nitrogen pressure sensor 12, a nitrogen pressure gauge 13, a temperature sensor 14, a pressure gauge 15, a hydrogen temperature sensor 16 and a hydrogen pressure gauge 17.

[0038] In this embodiment, the nitrogen pressure sensor 12 is used to monitor the pressure of nitrogen in real time to ensure that the nitrogen supply system is within a safe operating range. The nitrogen pressure gauge 13 displays the pressure value of nitrogen, facilitating the operator to intuitively understand the pressure state of nitrogen. The temperature sensor 14 monitors the temperature of the liquid accumulated in the hydrogen supply device body 1, which is very important for ensuring the safety of the liquid accumulation treatment and discharge process. The pressure gauge 15 displays the pressure value of the liquid accumulation, helping to understand the state of the liquid accumulation in the hydrogen supply device body 1. The hydrogen temperature sensor 16 monitors the temperature of hydrogen, and the hydrogen pressure gauge 17 displays the pressure value of hydrogen to ensure that the supply pressure of hydrogen meets the process requirements.

[0039] For details, please refer to Figures 1-3 , on the side end of the hydrogen supply device body 1, there are a hydrogen outlet valve 18, a hydrogen stop valve 19, a hydrogen sampling valve 20 and a sampling test valve 21.

[0040] In this embodiment, the hydrogen outlet valve 18 is used to control the flow rate of hydrogen output from the hydrogen supply device body 1 to downstream equipment or pipelines. This valve is usually connected to the control system to facilitate automatic adjustment of the hydrogen output. The hydrogen stop valve 19 is used to completely cut off or open the flow of hydrogen. This valve is usually located before the hydrogen outlet valve and can be quickly closed in case of emergency to prevent hydrogen from flowing out and ensure safety. The hydrogen sampling valve 20 is used to extract hydrogen samples from the hydrogen supply device body 1 for analysis. This can help detect characteristics such as the purity and humidity of hydrogen to ensure that it meets the usage standards. The sampling test valve 21 is used to extract liquid accumulation samples from inside the hydrogen supply device body 1 for testing. The liquid accumulation contains moisture or other impurities, and testing the liquid accumulation helps monitor the operating state of the equipment and take timely measures to avoid failures.

[0041] For details, please refer to Figures 1-3 , on the side end of the hydrogen supply device body 1, there are a hydrogen discharge valve 22 and a nitrogen discharge valve 23.

[0042] In this embodiment, the hydrogen discharge valve 22 is used to discharge hydrogen when necessary. For example, during maintenance or in case of emergency, hydrogen needs to be released to ensure safety. In addition, when starting or stopping the system, excess hydrogen can also be discharged through this valve. The nitrogen discharge valve 23 is used to discharge nitrogen, usually for system purging or air replacement to ensure that the gas environment inside the system meets safety requirements. In case of maintenance or emergency, nitrogen can also be discharged through this valve to ensure safety.

[0043] For details, please refer to Figures 1-3 , on the side end of the hydrogen supply device body 1, there is a door panel 24 rotatably connected by a rotating shaft.

[0044] In this embodiment: The door panel 24 is connected to the side end of the hydrogen supply device body 1 through a rotating shaft, enabling the door panel to be opened and closed. The purpose of designing the door panel is to facilitate operators to access the components inside the hydrogen supply device body 1, such as for maintenance, inspection, or replacement of parts, etc. By providing the door panel 24, it can ensure that the hydrogen supply device body 1 remains closed when not needed, thereby improving the safety of the system and protecting the internal components from external factors. At the same time, the opening of the door panel also provides a convenient access path for operators, facilitating daily maintenance and troubleshooting.

[0045] The working principle and usage process of the present utility model: First, ensure that all valves are in the initial closed state. Check whether sensors such as the nitrogen pressure sensor 12 and the hydrogen temperature sensor 16 are working properly, and check whether valves such as the nitrogen inlet valve 8 and the hydrogen stop valve 19 are in the correct positions. Open the nitrogen inlet valve 8 to allow nitrogen to enter the hydrogen supply device body 1, monitor the nitrogen flow through the nitrogen flowmeter 7, open the hydrogen inlet liquid flow control valve 4 to control the speed of the liquid entering the hydrogen supply device body 1, monitor the hydrogen temperature sensor 16 and the hydrogen pressure gauge 17 to ensure that the temperature and pressure of hydrogen meet the requirements, start the hydrogen generation process, monitor the hydrogen flow through the flow acquisition device 3, adjust the hydrogen outlet flow control valve 2 as needed to precisely control the output flow of hydrogen, continuously monitor the state of hydrogen through the hydrogen temperature sensor 16 and the hydrogen pressure gauge 17. When it is necessary to drain the accumulated liquid, open the first outlet valve 9 or the second outlet valve 10 for drainage, monitor the state of the accumulated liquid through the temperature sensor 14 and the pressure gauge 15. If it is necessary to test the accumulated liquid, open the sampling test valve 21 to obtain a sample. When it is necessary to take a hydrogen sample, open the hydrogen sampling valve 20 for sampling. If it is necessary to discharge hydrogen, open the hydrogen discharge valve 22 for discharge. Similarly, if it is necessary to discharge nitrogen, open the nitrogen discharge valve 23 for discharge. When it is necessary to perform maintenance on the hydrogen supply device body 1, it can be opened through the door panel 24 to access the internal components, close all relevant valves to ensure system safety, stop the hydrogen generation process, close the hydrogen inlet liquid flow control valve 4, close the nitrogen inlet valve 8, stop the nitrogen supply, and close all relevant valves to ensure that the system is in a safe state.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Metering mechanism of a hydrogen supply device, characterized in that, Comprising: Hydrogen supply device body (1); Hydrogen output flow control (2), which is arranged on one side of the lower end of the hydrogen supply device body (1); Flow rate acquisition (3), which is arranged on the other side of the lower end of the hydrogen supply device body (1); Liquid inlet flow control (4), which is arranged inside the hydrogen supply device body (1); Filter device (5) and gas-liquid separation device (6), both of which are arranged inside the hydrogen supply device body (1).

2. The metering mechanism of the hydrogen supply device according to claim 1, characterized in that: On the side end of the hydrogen supply device body (1), there are nitrogen flow rate (7), nitrogen inlet valve (8), first outlet valve (9), second outlet valve (10) and inlet valve (11).

3. The metering mechanism of the hydrogen supply device according to claim 2, characterized in that: On the side end of the hydrogen supply device body (1), there are connected with nitrogen pressure sensor (12), nitrogen pressure gauge (13), temperature sensor (14), pressure gauge (15), hydrogen temperature sensor (16) and hydrogen pressure gauge (17).

4. The metering mechanism of the hydrogen supply device according to claim 3, characterized in that: On the side end of the hydrogen supply device body (1), there are arranged hydrogen outlet valve (18), hydrogen stop valve (19), hydrogen sampling valve (20) and sampling test valve (21).

5. The metering mechanism of the hydrogen supply device according to claim 4, characterized in that: On the side end of the hydrogen supply device body (1), there are arranged hydrogen discharge valve (22) and nitrogen discharge valve (23).

6. The metering mechanism of the hydrogen supply device according to claim 5, characterized in that: On the side end of the hydrogen supply device body (1), there is a door panel (24) rotatably connected through a rotating shaft.

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