FAQ

In the main column of the air separation column, the distribution of argon varies with the position of the liquid air inlet. With the increase of liquid air inlet position, the maximum concentration of argon enrichment zone in the stripping section also increases, and the nitrogen content in the distillate can be reduced. However, the argon content in the downstream also increases. In order to ensure the purity of oxygen, more trays are needed under the extraction port of argon fraction. Therefore, in the case of producing argon, the position of liquid air supply E1 should be appropriately increased compared with the case of not producing argon. Some unit is equipped with two liquid air inlet positions to meet the conditions of argon production and non argon production respectively. In the production of argon, in order to improve the extraction rate of argon, the content of argon in oxygen and nitrogen must be reduced. When the content of argon in exhaust nitrogen is more than 0.3%

Why is dew point commonly used in air separation equipment to indicate the moisture content in the air?

(1) argon arc welder must have a pressure vessel welder qualification certificate, no permit personnel are strictly prohibited to weld. (2) in order to effectively control the speed of heating of the welded parts, should be used as far as possible to break the arc method of welding, welding wire diameter selected towel 3mm, while welding current should be given strict control, such as towel 12 * 2 instrumentation pipe joints recommended to use 60 ~ 80 amps welding current, the maximum should no...

Advantages of structured packing column

According to the different ways in which refrigeration causes low temperatures, the cooling capacity can be divided into three ways

The energy saving in liquid air separation plants improves the efficiency of the air compressor and consumes energy mainly in the air compressor and the circulating nitrogen press. In liquid air separation plants, the cold volume of liquid air separation plant is utilised in sections. The cold volume in the high temperature zone is pre-cooled by a glycol solution, and the compressed air of the air compressor allows the inlet temperature of each stage of the air compressor to be reduced from the ...

1.The cold box foundation is divided into frame type and non frame type. The levelness of top surface of frame type frame shall not exceed 1 / 1000. All sections of the frame shall be placed vertically. All bottom plates of non frame type cold box shall be kept at the same level, and the levelness shall not exceed 1 / 1000.   2.When installing the cold box plate, the adjacent two sides can beassembled into a whole piece or angle type on the ground. The length error of each diagonal line a...

What is the role of the condensing evaporator in air separation equipment?