DEAR News - DEAR Air Separation

Grand Inauguration of Kaifeng Air Separation Industry Association Held: Uniting Industry Forces to Write a New Chapter of Development

2025.05.12

Grand Inauguration of Kaifeng Air Separation Industry Association Held: Uniting Industry Forces to Write a New Chapter of Development

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What are the special requirements of the oxygen generator for medical oxygen production?

In addition to certain requirements on the purity of medical oxygen (the purity of oxygen is 99.5% for the cooling method), it is also required that

Apr 07, 2013

Compared with the original equipment, what are the technical improvements of the new small air separation plant?

Since 1990s, some mature advanced technologies of oxygen generation have also been applied in small air separation plants, which have reduced cold los

Apr 07, 2013

Why is liquid oxygen self-circulation adsorption system still set up in some air separation equipment of molecular sieve purification process?

There are different opinions on whether liquid oxygen explosion-proof system should be set in the air separation plant of molecular sieve purification

Apr 07, 2013

What are the types of liquid-level self-cyclic adsorption?

Liquid oxygen self-cyclic adsorption can be divided into three types according to different heat sources of thermal siphon evaporator:1) use the gas a

Apr 07, 2013

How to realize the extraction of refined nitrogen by total rectification method, and what are its characteristics compared with the hydrofining method?

In the conventional argon production method, the argon content extracted from the distillation column is up to 9% ~ 12% argon fraction, and then condu

Apr 07, 2013

In the start-up stage, what role does the bypass valve from air to sewage and nitrogen pipe play, when to start using and when to close?

In the process of full low-pressure switching air separation plant, a bypass valve is usually installed on the pipeline of the air-out switching heat

Apr 02, 2013

Pay attention to details to promote management promotion

In 2013, Kaifeng DEAR kongfen Industrial Co., Ltd. carried out the activity of "paying attention to details and improving management", and p

Mar 28, 2013

How is the regeneration operation of the purifier?

Molecular sieve purifier in 0.5 ~ Regeneration should be carried out when the adsorption reaches saturation under 0.6MPa. Regeneration operation is di

Mar 28, 2013

When the precooling system of the cooler breaks down, what influence will it have on the operation of the air separation plant? How should it be operated?

The applicable range of the working temperature of the molecular sieve is generally 8 ~ 15℃, within this range can work normally, once beyond this ran

Mar 28, 2013

Why does the purification system of molecular sieve sometimes cause water inflow accident and how to solve it?

In front of the molecular sieve purifier, in order to reduce the temperature when the processed air enters the purifier, the whole low pressure oxygen

Mar 28, 2013

What are the key points of the small medium pressure air separation equipment after the liquid empty appears?

In order to accumulate the liquid as soon as possible after the appearance of the liquid, we should prepare as much cold as possible and reduce the co

Mar 28, 2013

Why does the high pressure rise not rise high after the distillation column is started?

After the distillation column is started, the main possible reasons why the high pressure does not rise to the designed value are:1) insufficient proc

Mar 28, 2013

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