Full-automatic hydrogen and nitrogen distribution equipment 2-element gas mixing standard gas prepar

Full-automatic hydrogen and nitrogen gas distribution equipment The 2-element mixed standard gas preparation device uses the thermal mass flowmeter and mass flow transmitter as the main body of the full-automatic hydrogen and nitrogen gas distribution equipment. The self-compiled program is completed in the PLC. Under the function of the pressure sensor and pneumatic valve, the mass flowmeter calculates the nitrogen output flow and transmits the data to the mass flow transmitter to strictly control the injection amount of hydrogen, ignoring the raw gas pressure and flow changes, Accurate gas distribution is always obtained at the point of use of the gas mixture. The hydrogen analyzer at the output end of the gas mixture monitors and verifies the hydrogen content in the gas mixture. The touch screen completes data collection, and all parameters are clearly visible. The gas distribution ratio is changed. One key is completed, and one key is stored. The equipment has interlocking interlock function to prevent misoperation. The data output end is equipped with 485 interface, which can complete data remote transmission online, and remotely control the working principle of the equipment;

After the hydrogen and nitrogen entering the proportioning cabinet are depressurized and stabilized at the gas distribution inlet, various gas flows and pressures are indicated by various digital gas flow meters, and then the amount to be injected is calculated and controlled by PLC to achieve the mixing content required for proportioning. The ratio automatically adjusts the content of hydrogen and nitrogen to be added when the flow rate of the later stage changes, and the analyzer monitors the percentage content ratio of the ratio gas in real time. The proportioning cabinet uses a touch screen to display and control the gas distribution parameters, which has the following advantages.

1. The digital flowmeter is used to display the gas consumption of each gas in real time.

2. When the inlet pressure fluctuates, automatically adjust the dosage and maintain the proportioning content.

3. The high-precision pressure sensor controls and monitors the mixed gas pressure in real time.

4. Each alarm is set to ensure the normal operation of the proportioner to the maximum extent.

5. The gas distribution device adopts a sub-box structure, which is composed of an independent control cabinet and a gas distribution actuator. It is required to complete remote control

6. The electrical cabinet is fully enclosed, with nitrogen filled positive pressure protection. Besides protecting the electrical equipment, it also has explosion-proof isolation effect (optional)

7. A high-precision filter with particles less than 0.1um is installed at the raw gas inlet to effectively protect the mass flow controller and eliminate hidden dangers.

8. Adjust the gas distribution parameters, with clear interface, digital input, one-key operation, one-key storage, instantaneous gas distribution, and interlocking function to absolutely eliminate misoperation.

9. Built-in multiple sets of self-compiled programs to fill the shortage of linear measurement of mass flow meter, automatically trigger the conversion program under small flow state, and stabilize the gas supply.

10. Humanized design of the overall cabinet: mobile casters, fast and convenient to move, with fixed balance support.