35MPa detection system of compressed hydrogen hydrogenation machine

Abstract

A 35MPa detection system of a compressed hydrogen hydrogenation machine belongs to the technical field of hydrogenation machine detection, and comprises a 35MPa calibrating device, the 35MPa calibrating device is provided with a gas inlet used for being connected with the hydrogenation machine, a gas outlet used for being connected with a vehicle compressed hydrogen gas cylinder, and a gas outlet, and the 35MPa calibrating device is in communication connection with a computer through an explosion-proof junction box. Firstly, the system adopts a 35MPa high-precision calibrating device, so that the accuracy and the reliability of a calibrating result are ensured; and secondly, wired or wireless communication connection is realized through the explosion-proof junction box and the computer, so that real-time transmission and processing of data are realized, and the verification efficiency is improved. The system is reasonable in design and easy and convenient to operate, skill requirements of operators are reduced, and personal errors are reduced. Meanwhile, the system also has high safety and stability, can stably operate in a high-pressure environment, and guarantees the safety of the verification process. In conclusion, the utility model provides an efficient, safe and automatic solution for the verification of the compressed hydrogen hydrogenation machine.

Description

Technical Field

[0001] This utility model belongs to the field of hydrogen refueling machine testing technology, specifically relating to a 35MPa testing system for a compressed hydrogen refueling machine. Background Technology

[0002] In existing technologies, the testing of compressed hydrogen dispensers mainly relies on traditional calibration equipment and methods, which often suffer from low accuracy, complex operation, and low automation. Especially under high-pressure environments (such as 35 MPa), the safety and stability requirements of the calibration device are extremely high, and traditional equipment often struggles to meet these requirements. Furthermore, with the rapid development of the hydrogen energy industry, the demand for efficiency and accuracy in hydrogen dispenser calibration is increasing, and traditional equipment is no longer adequate to meet market demands. Therefore, developing a highly efficient, safe, and automated testing system for compressed hydrogen dispensers is of paramount importance. Utility Model Content

[0003] To address the shortcomings of existing technologies, a 35MPa testing system for a compressed hydrogen refueling machine is provided, comprising a 35MPa calibration device. The 35MPa calibration device is equipped with an inlet for connecting to the hydrogen refueling machine, an outlet for connecting to a vehicle-mounted compressed hydrogen cylinder, and an exhaust port. The 35MPa calibration device is connected to a computer via an explosion-proof junction box.

[0004] Furthermore, the 35MPa calibration device includes an inlet valve, a pressure transmitter, a mass flow meter, a pressure gauge, a vent valve, and an outlet valve. The inlet valve, pressure transmitter, mass flow meter, and pressure gauge are connected in sequence. The pressure gauge is connected to the exhaust port through the vent valve and to the outlet through the outlet valve. The pressure transmitter and mass flow meter are both connected to an explosion-proof junction box.

[0005] Furthermore, the air inlet includes a 35MPa large gun air inlet and a 35MPa small gun air inlet, both of which are connected to the air inlet valve of the 35MPa calibration device.

[0006] Furthermore, the vent valve is connected to the vent port.

[0007] Furthermore, when the 35MPa nozzle inlet is connected to the hydrogen refueling machine, the outlet and exhaust port are connected to the vehicle-mounted compressed hydrogen cylinder via the 35MPa nozzle.

[0008] Furthermore, when the 35MPa nozzle inlet is connected to the hydrogen refueling machine, the outlet and exhaust port are connected to the vehicle-mounted compressed hydrogen cylinder via the 35MPa nozzle.

[0009] Furthermore, the explosion-proof junction box is wired to the computer via a communication interface, and wirelessly connected to the computer via an antenna.

[0010] Furthermore, the explosion-proof junction box is connected to a power / charging interface.

[0011] The beneficial effects of this utility model are:

[0012] First, the system employs a 35MPa high-precision calibration device, ensuring the accuracy and reliability of the calibration results. Second, it achieves wired or wireless communication with a computer via an explosion-proof junction box, enabling real-time data transmission and processing, thus improving calibration efficiency. Furthermore, the system is rationally designed and easy to operate, reducing the skill requirements for operators and minimizing human error. Simultaneously, the system possesses high safety and stability, capable of stable operation under high-pressure environments, ensuring the safety of the calibration process. In summary, this invention provides an efficient, safe, and automated solution for the calibration of compressed hydrogen dispensers. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the 35MPa detection system for the compressed hydrogen refueling machine of this utility model.

[0014] 1. 35MPa large gun air inlet, 2. 35MPa small gun air inlet, 3. Air inlet valve, 4. Pressure transmitter, 5. Mass flow meter, 6. Pressure gauge, 7. Vent valve, 8. Air outlet valve, 9. Air outlet, 10. Exhaust port, 11. Vent port, 12. Explosion-proof junction box, 13. Computer, 14. Power / charging interface, 15. 35MPa calibration device, 16. Communication interface, 17. Antenna. Detailed Implementation

[0015] A 35MPa detection system for a compressed hydrogen refueling machine, such as Figure 1 As shown, it includes a 35MPa calibration device 15, which is equipped with an inlet for connecting to a hydrogen refueling machine, an outlet 9 for connecting to a vehicle compressed hydrogen cylinder, and an exhaust port 10. The 35MPa calibration device 15 is connected to a computer 13 via an explosion-proof junction box 12.

[0016] The 35MPa calibration device 15 includes an inlet valve 3, a pressure transmitter 4, a mass flow meter 5, a pressure gauge 6, a vent valve 7, and an outlet valve 8. The inlet valve 3, pressure transmitter 4, mass flow meter 5, and pressure gauge 6 are connected in sequence. The pressure gauge 6 is connected to the exhaust port 10 through the vent valve 7 and to the outlet port 9 through the outlet valve 8. The pressure transmitter 4 and the mass flow meter 5 are both connected to the explosion-proof junction box 12.

[0017] The air inlet includes a 35MPa large gun air inlet 1 and a 35MPa small gun air inlet 2. Both the 35MPa large gun air inlet 1 and the 35MPa small gun air inlet 2 are connected to the air inlet valve 3 of the 35MPa calibration device 15.

[0018] The vent valve 7 is connected to the vent port 11.

[0019] When the 35MPa large gun inlet 1 is connected to the hydrogen refueling machine, the outlet 9 and exhaust port 10 are connected to the vehicle compressed hydrogen cylinder through the 35MPa large gun.

[0020] When the 35MPa small gun inlet 2 is connected to the hydrogen refueling machine, the outlet 9 and exhaust port 10 are connected to the vehicle compressed hydrogen cylinder through the 35MPa small gun.

[0021] The explosion-proof junction box 12 is connected to the computer 13 via the communication interface 16, and the communication method with the computer 13 is wireless or wired communication.

[0022] The explosion-proof junction box 12 is connected to the power / charging interface 14.

[0023] The working process of this utility model mainly revolves around the testing of a compressed hydrogen refueling machine, and the specific steps are as follows:

[0024] 1. Connection Preparation: First, connect the air inlet of the 35MPa calibration device (including the 35MPa large nozzle inlet 1 and the 35MPa small nozzle inlet 2) to the hydrogen dispenser to be tested. Simultaneously, connect the outlet 9 and exhaust port 10 to the vehicle-mounted compressed hydrogen cylinder through the corresponding nozzle type interface (35MPa large nozzle or 35MPa small nozzle). (The 35MPa small nozzle and the 35MPa large nozzle cannot be used simultaneously; they must be used individually.)

[0025] 2. Data Acquisition: Upon starting the hydrogen dispenser, hydrogen gas enters the 35MPa calibration device through the inlet, passing sequentially through inlet valve 3, pressure transmitter 4, mass flow meter 5, and pressure gauge 6. During this process, pressure transmitter 4 monitors the hydrogen pressure in real time, mass flow meter 5 accurately measures the hydrogen flow rate, and pressure gauge 6 displays the current pressure value.

[0026] 3. Data Transmission and Processing: Collected data such as pressure and flow rate are transmitted to computer 13 via explosion-proof junction box 12. Explosion-proof junction box 12 supports both wired communication (via communication interface 16) and wireless communication (via antenna 17), ensuring flexibility and reliability of data transmission. Computer 13 processes and analyzes the received data to evaluate the performance of the hydrogen refueling machine.

[0027] 4. Venting and Exhausting: After calibration, the hydrogen gas in the calibration device 15 pipeline needs to be released. This can be done through the vent valve 7 via the vent port 11. Simultaneously, the exhaust port 10 is also used to release hydrogen gas from the hydrogen refueling gun and its connecting hose, ensuring safe removal of the gun. (The gun cannot be removed without venting.)

[0028] 5. Results Output: After the verification is completed, computer 13 outputs a verification report, showing whether the various performance indicators of the hydrogenation machine meet the standards.

[0029] The functions of each component of this utility model are as follows:

[0030] 35MPa large nozzle air inlet 1: Used to connect the high-flow air inlet of the hydrogen refueling machine.

[0031] 35MPa small gun air inlet 2: Used to connect to the low-flow air inlet of the hydrogen refueling machine.

[0032] Inlet valve 3: A switch that controls the entry of hydrogen into the 35MPa calibration device.

[0033] Pressure transmitter 4: Real-time monitoring and conversion of hydrogen pressure signals into electrical signals for computer processing.

[0034] Mass flow meter 5: Accurately measures the flow rate of hydrogen passing through the calibration device.

[0035] Pressure gauge 6: Displays the current hydrogen pressure value for operators to observe visually.

[0036] Vent valve 7: Used to release excess hydrogen or adjust system pressure.

[0037] Gas outlet valve 8: A switch that controls the flow of hydrogen gas from the outlet 9 of the calibration device.

[0038] Outlet 9: Connects to a vehicle-mounted compressed hydrogen cylinder for outputting calibrated hydrogen.

[0039] Exhaust port 10: Discharges some gas to maintain system pressure balance.

[0040] Vent 11: Connected to vent valve 7, used to release excess hydrogen gas.

[0041] Explosion-proof junction box 12: Enables data transmission between the calibration device and the computer, supports wired and wireless communication, and has explosion-proof function.

[0042] Computer 13: Receives, processes, and analyzes calibration data, and outputs calibration reports.

[0043] Power / charging interface 14: Provides power support for the explosion-proof junction box 12 and the entire system.

[0044] Communication interface 16: The interface for wired communication between the explosion-proof junction box 12 and the computer 13.

[0045] Antenna 17: Antenna for wireless communication between the explosion-proof junction box 12 and the computer 13.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A 35MPa detection system for a compressed hydrogen refueling machine, characterized in that, It includes a 35MPa calibration device (15), which is equipped with an air inlet for connecting to a hydrogen refueling machine, an air outlet (9) for connecting to a vehicle compressed hydrogen cylinder, and an exhaust port (10). The 35MPa calibration device (15) is connected to a computer (13) via an explosion-proof junction box (12).

2. The 35MPa detection system for the compressed hydrogen refueling machine according to claim 1, characterized in that, The 35MPa calibration device (15) includes an inlet valve (3), a pressure transmitter (4), a mass flow meter (5), a pressure gauge (6), a vent valve (7), and an outlet valve (8). The inlet valve (3), pressure transmitter (4), mass flow meter (5), and pressure gauge (6) are connected in sequence. The pressure gauge (6) is connected to the exhaust port (10) through the vent valve (7) and to the outlet port (9) through the outlet valve (8). The pressure transmitter (4) and mass flow meter (5) are both connected to the explosion-proof junction box (12).

3. The 35MPa detection system for the compressed hydrogen refueling machine according to claim 2, characterized in that, The air inlet includes a 35MPa large gun air inlet (1) and a 35MPa small gun air inlet (2). Both the 35MPa large gun air inlet (1) and the 35MPa small gun air inlet (2) are connected to the air inlet valve (3) of the 35MPa calibration device (15).

4. The 35MPa detection system for the compressed hydrogen refueling machine according to claim 2, characterized in that, The vent valve (7) is connected to the vent port (11).

5. The 35MPa detection system for the compressed hydrogen refueling machine according to claim 3, characterized in that, When the 35MPa large gun inlet (1) is connected to the hydrogen refueling machine, the outlet (9) and exhaust port (10) are connected to the vehicle compressed hydrogen cylinder through the 35MPa large gun.

6. The 35MPa detection system for the compressed hydrogen refueling machine according to claim 3, characterized in that, When the 35MPa small gun inlet (2) is connected to the hydrogen dispenser, the outlet (9) and exhaust port (10) are connected to the vehicle compressed hydrogen cylinder through the 35MPa small gun.

7. The 35MPa detection system for the compressed hydrogen refueling machine according to claim 1, characterized in that, The explosion-proof junction box (12) is wired to the computer (13) via a communication interface (16), and wirelessly connected to the computer (13) via an antenna (17).

8. The 35MPa detection system for the compressed hydrogen refueling machine according to claim 1, characterized in that, The explosion-proof junction box (12) is connected to the power / charging interface (14).

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