What should be paid attention to when using Roots blower to transport hydrogen?

What should be paid attention to when using Roots blower to transport hydrogen?

1) Roots blower is a volume rotary compressor, and the gap between the impeller and the casing is only 0.2-0.5mm, which is easy to cause friction and spark. Although we also used Roots blower at the beginning, from the safety point of view, we should first open the liquid ring compressor, and then use Roots blower when the hydrogen mass fraction in hydrogen is ≥ 98%, Under normal conditions, the hydrogen purity shall be measured every hour.

(2) Be familiar with and summarize at the same time, improve the stop and switch operation method of Roots blower, strengthen training, strictly implement the operating procedures, and ensure safe production.

(3) Strengthen the daily maintenance of roots blower. In order to ensure the service life of Roots blower, replace the engine oil according to the blower temperature, frequently inspect the temperature rise of each part of the blower, and strictly implement the process indicators. Filter shall be installed in case of coarse particles or unclean gas to realize early detection and treatment. For overhaul, return to the factory for disassembly and measurement, replace some vulnerable parts, and do not disassemble the fan by yourself.