What factors affect the discharge volume of a DEAR Liquid air separation unit centrifugal compressor?

When there is no pressure signal input, the valve is closed; when there is a pressure signal, the valve starts to open, and the larger the input signal, the larger the valve opening, this kind of film regulating valve is called air-opening film regulating valve in small air spearation unit. When there is no pressure signal input, the valve is fully open, and when there is a pressure signal input, the valve starts to close; the larger the input signal, the smaller the valve opening; when the inp...

What is the cause of ultra low temperature in air separation plant and the principle of refrigeration equipment?