Large air separation FAQ

Why do we need to balance the pressure when the molecular sieve adsorber is switching: (1) when the molecular sieve adsorber is switching, we need to balance the pressure first to ensure the smooth operation of the whole device. When the molecular sieve adsorber is switching, if the pressure is uneven, then in order to fill the inner space of the container, the air flow and pressure of the device will fluctuate suddenly. (2) In addition, if the molecular sieve adsorber which is going to be put into use does not carry out uniform pressure first, it will be strongly impacted by the air when switching, which will deform or even damage the barrier. Aluminum glue and molecular sieve also rub and squeeze each other because of the impact. After producing dust particles, they enter the internal channel of the absorbant, causing blocking and reducing the adsorption efficiency. Therefore, the molecular sieve adsorber must be under average pressure before switching.

Why is there both liquid nitrogen and gas nitrogen at the top of the air separation tower

What are the requirements for the main tower when configuring the argon tower in the air separation tower

Industry insiders of membrane separation gas industry think that the technological development of membrane separation gas industry in our country mainly includes the following technical points: (1) for membrane technology which has been applied in industrialization in our country, such as micro-filtration, superfiltration, reverse permeability and gas separation membrane, we should strengthen the development efforts, improve product quality and form scale benefits. Take solving membrane materials and membrane manufacturing technology as the core, break through the preparation technology of composite reverse permeability membrane, and make the products reach the international level; carry out Industry Planning and scientific and technological development, and improve the technical level of domestic superfiltration membrane, maintain a relatively high market share. On the basis of successful industrial application of membrane hydrogen extraction, membrane oxygen enrichment, membrane n...

Why does the liquid air level and liquid oxygen level rise when the air separation equipment is temporarily stopped

1. Air separation plant and its performance characteristics 1.1 air separation plant the air separation plant uses air as the raw material, and converts the air into liquid state through compression cycle and deep freezing, after rectification, the equipment is gradually separated from the liquid air to produce lazy gases such as oxygen, nitrogen and argon. At present, there are various forms and types of air separation equipment produced in our country. There are devices for producing gas oxygen and nitrogen, and also devices for producing liquid oxygen and nitrogen. But in terms of basic process, there are mainly four kinds, which are high pressure, medium pressure, high and low pressure and full and low pressure process. The production scale of air separation plant in our country has been able to produce only 20m3/h (oxygen) oxygen generator from the early stage, up to now, it has the ability to produce 20000 m3/h, 30000 m3/h and 50000 m3/h (oxygen) super large air separation pla...

What impact does the air separation equipment have on the device when extracting rare gases

Distillation process of fractionator of air separation plant

What drive modes are available for compressors of large air separation plants

The analysis of the working principle of centrifugal compressor I. The explanation of common nouns: (1) level: each level of impeller and its matched fixed components (such as diffuser, etc.) constitute a basic unit, call it a level. For example: Hangzhou oxygen 2TYS100 2TYS76 oxygen turbine compressor high and low pressure cylinder has eight impellers, which is called eight levels. (2) segment: the unit separated by intermediate cooler is called segment. In this way, the compressor can be divided into many sections according to the number of coolers. A section can include many levels, or only one level. (3) standard state: 0℃, 1 standard atmospheric pressure. (4) air intake status: generally refers to the temperature and pressure of the gas at the inlet. (5) weight flow: the weight of gas flowing in one second. Volume flow: the volume of gas flowing in one second. Gauge pressure (G): The pressure measured based on the local atmosphere. Absolute pressure (A): The pressure measured o...

What safety precautions should be paid attention to when loading pearlite

How does the energy of the air in the air separation unit change after isothermal compression