Quick Detail
Place of Origin
HS-CODE
38-
Package & Delivery Lead Time
Detailed Description
Description:
Air enters the suction air filter and after being removed of dust and other mechanical contaminants in it, it is compressed to the pressure of 0.8MPa by air compressor. Air from the air compressor is cooled to 10℃ in the air precooling system and separated condensing water in water separator. after the water being separated its condensed water, taken into the molecular sieve adsorber for removing H2O, C2H2 and CO2. There are two molecular sieve adsorbers which operate on a staggered cycle, i.e. one vessel is adsorbing the contained impurities while the other is being reactivated by waste nitrogen from the rectifying column.
Then the cleaned air is divided into two streams, one of them is taken into the rectifying column and cooled by the return waste nitrogen, oxygen,expander air through the main heat exchanger. The steam-liquid air mixture is taken into the lower column for rectifying, and herein the pure nitrogen from the top of the column enters into the evaporator-condenser and condensed by liquid oxygen from the upper column. A part of the liquid nitrogen is fed to the lower column as reflux. The other part after subcooling apart two parts after throttled. One part enters into the top of the upper column,other part enters storage tank as product.
Another cleaned stream is compressed in booster end of the booster expansion turbine, then enters the main heat exchanger. air from the middle and cold end of the main heat exchanger enter into the turbine expansion to generate most refrigeration for need of the plant's operation. After the expanded air return to heat exchange.
The LOX is drawn from oxygen side of the evaporator-condenser, some of them enters storage tank as product.
The waste nitrogen from the top of the upper column is warmed up, it goes to the regeneration molecular sieve adsorber.
Configuration features:
The plant is of full low-pressure flow expansion process, using molecular sieve purification system, air bearing turbo-expander and aluminum plate-fin type heat exchanger which greatly enhance the stability, security and reliable of operation.
The fractionating column adopts aluminum sieve plate column, whose plate rectification achieves the best effect after being precision calculated and manufactured by us, so the height of column is reduced. The oxygen & nitrogen recovery ratios of the column are high and the output regulating range is large.
The units of the whole plant are reasonable and the occupation area of the plant is small. It can be operated easily and various data can be monitored by on-line digital indicator
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