The core driving component of the hydrogen proportional valve is the proportional electromagnet, which consists of a coil, an armature, and a magnetic conductor. When a current is applied to the coil, an electromagnetic force proportional to the magnitude of the current is generated. The larger the input electrical signal (such as 0~10V voltage or 4~20mA current), the stronger the electromagnetic force, which pushes the armature and connected valve core to move a greater distance.

Valve core movement and throttle adjustment: Electromagnetic force overcomes spring force to push the valve core to move, and the displacement of the valve core determines the opening area of the valve. For example, when the current is 50, the displacement of the valve core also reaches 50, and the corresponding opening area becomes 50, resulting in a flow rate of 50. This linear relationship enables proportional control of hydrogen flow rate through accurate control of electrical signals.

Fluid control implementation: As the position of the valve core changes, the cross-sectional area of the gas channel changes, thereby adjusting the flow rate or pressure of hydrogen gas. In this way, the input electrical signal can be proportionally converted into control of hydrogen fluid parameters to meet the needs of different operating conditions.

Precautions for using hydrogen proportional valve:

1. Regular inspection and maintenance: Regularly check the sealing and flexibility of the valve, promptly identify and solve problems, and avoid accidents. The inspection frequency should be determined based on the frequency of use and environmental conditions.

2. Correct operation specifications: Operate the valve correctly according to the requirements of the valve manual, avoiding damage to the valve caused by excessive force or improper operation.

3. Safety protection measures: When operating valves, necessary safety protection equipment should be worn, such as explosion-proof gloves, safety goggles, etc., to prevent accidents from occurring.

4. Environmental adaptability management: Pay attention to the installation environment of the valve and avoid damage to the valve caused by high temperature, high humidity, corrosive environment, etc.

5. Emergency handling: In the event of an emergency, it is necessary to handle it according to the emergency plan and promptly contact professional personnel for repair or replacement.

6. Principle of original component replacement: When replacing components, original components recommended by the manufacturer should be used to ensure the performance and reliability of the valve.

7. Maintenance record tracking: Record the date, content, and results of each maintenance to facilitate tracking the maintenance history and performance changes of the proportional valve.

8. System isolation and pressure relief operation: Before carrying out any maintenance work, ensure that the system has been depressurized and properly isolated to prevent residual pressure from causing safety hazards.