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Air separation FAQ

What happens when a DEAR Biogas purification unit forced valve fails and how can I deal with it?
What happens when a DEAR Biogas purification unit forced valve fails and how can I deal with it?
Jul 23, 2021
DEAR Biogas purification unit What should I pay attention to in the fractionation column heating and blowing off?
DEAR Biogas purification unit What should I pay attention to in the fractionation column heating and blowing off?
Jul 22, 2021
Why is a molecular sieve purifier used during the start-up phase heating up faster than one used during normal operation of the DEAR Biogas purification unit with the same life cycle?
Why is a molecular sieve purifier used during the start-up phase heating up faster than one used during normal operation of the DEAR Biogas purification unit with the same life cycle?
Jul 22, 2021
Why does the DEAR Biogas purification unit sometimes have "excess cooling capacity" and how can I deal with it?
Why does the DEAR Biogas purification unit sometimes have "excess cooling capacity" and how can I deal with it?
Jul 21, 2021
What should I do if the DEAR Biogas purification unit liquid oxygen level gauge tube is clogged?
What should I do if the DEAR Biogas purification unit liquid oxygen level gauge tube is clogged?
Jul 21, 2021
Does the DEAR Biogas purification unit have the same effect on increasing cooling capacity by closing the expander cam versus closing the pass-6 valve to increase the high pressure?
Does the DEAR Biogas purification unit have the same effect on increasing cooling capacity by closing the expander cam versus closing the pass-6 valve to increase the high pressure?
Jul 20, 2021
Why is the minimum temperature of DEAR Biogas purification unit air separation tower lower than the expander outlet?
Why is the minimum temperature of DEAR Biogas purification unit air separation tower lower than the expander outlet?
Jul 20, 2021
Why does the DEAR Biogas purification unit shorten the changeover period during the start-up phase for a full low-pressure air separation plant with a self-cleaning process?
Why does the DEAR Biogas purification unit shorten the changeover period during the start-up phase for a full low-pressure air separation plant with a self-cleaning process?
Jul 19, 2021
What are the differences in construction and materials between DEAR Biogas purification unit piston air compressor and piston oxygen compressor?
What are the differences in construction and materials between DEAR Biogas purification unit piston air compressor and piston oxygen compressor?
Jul 19, 2021
What should I pay attention to when piping the liquid oxygen pump of a DEAR liquid air separation unit?
What should I pay attention to when piping the liquid oxygen pump of a DEAR liquid air separation unit?
Jul 16, 2021
How does the change in temperature of the cold end of the DEAR Liquid air separation unit return gas affect the temperature conditions of the accumulator?
How does the change in temperature of the cold end of the DEAR Liquid air separation unit return gas affect the temperature conditions of the accumulator?
Jul 16, 2021
Why does the liquid oxygen level rise sharply when the DEAR liquid air separation unit inverts the dryer (or molecular sieve purifier) and then fall again after a while?
Why does the liquid oxygen level rise sharply when the DEAR liquid air separation unit inverts the dryer (or molecular sieve purifier) and then fall again after a while?
Jul 15, 2021
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DEAR News
Learn more DEAR news
Welcome Mr. Tan, Chairman of Henan High tech Industry Chamber of Commerce, and his delegation to visit and guide
2024.04.15
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2024.03.18
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2024.03.18
2023 Corporate Social Responsibility Report
2024.03.18
DEAR Air Separation celebrates ”Women's Day” on March 8th
2024.03.08
DEAR Air Separation won the title of "Provincial Quality Benchmark Enterprise" in 2023
2024.02.26
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