Must the gas diluter have a coal safety certificate?

Yes, all electrical appliances under coal mines must pass safety certification, which is short for coal mine safety certification. In 2007, the State Economic and Trade Commission and the Coal Mine Safety Supervision Bureau issued the Interim Measures for Safety Signs of Coal Mine Products and other documents, which implemented a safety production certification system for equipment, instruments and meters used in coal mines, effectively curbing the entry of counterfeit and shoddy products into the underground. Safety production sign system is an effective method.

The basic principle of gas diluter is "big void effect", which uses compressed air as energy source, and compressed air enters a radial annular space. This specially designed annular space can expand compressed air and improve the flow rate. Therefore, under this action, low pressure and negative pressure can be generated and enter the cavity of the equipment. In this way, the compressed air is mixed with the gas induced to be inhaled, then diffused in the booster pipe, and then ejected at high speed. The air intake can reach 17 times of the compressed air. The trajectory of high-speed airflow generated by negative pressure is laminar flow.