How to start a circulating hydrogen compressor
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The aniline plant is equipped with a circulating hydrogen compressor, with an inlet pressure of 800 and an outlet pressure of 800. When starting the compressor, this machine is very difficult to start. With good luck, it will operate after just one attempt; with bad luck, it may not start even after half a day (there’s a startup timeout, and trying it several times raises the temperature of the water resistance cabinet). To start this machine, keep the inlet fully open, the outlet fully open, and the reflux valve (150) fully open. There is a buffer tank at the inlet; starting at 15 Kpa allows the pressure to be reduced to 0 Kpa. The motor power seems to be 900 KW. Q1. The compressor has male and female rotors; is this a centrifugal compressor? 2. There is also a Sullair air compressor on the unit; the inlet pipeline of this air compressor is equipped with guide vane valves, which are fully closed at startup. Can the inlet of this hydrogen compressor be closed as well when it starts up, or can it be operated at 1/3 or 1/2 capacity? 3. Is it beneficial for starting the compressor to fill the inlet buffer tank with air during startup?
1. Your rotary air compressor must have a gearbox for speed increase, right! A single-stage compression booster! 2. When starting the hydrogen booster compressor, you need to be aware of the outlet flow rate and pressure of the air compressor, and it is possible to shut them down.