三门峡妹妹上门-三门峡妹妹上门_第1页

在常州酒店晚上怎么叫服务

Current location: home page > Industry trends >/ method of obtaining liquid nitrogen

Methods of obtaining liquid nitrogen

Time: 2020-09-22 10:44 Source: unknown Author: Bander liquid nitrogen tank Click: second
How to get liquid nitrogen? By compressing and cooling the air, separating the air and other gases, nitrogen is left.   liquid nitrogen tank

An air separation system for obtaining liquid oxygen and liquid nitrogen comprises at least one air separation device mainly composed of fractionating tower and at least one LNG cold capacity recovery device mainly composed of LNG heat exchanger. The air separation device is also equipped with a main heat exchanger, a liquid oxygen heat exchanger and a liquid nitrogen liquid air subcooler;

Oxygen is drawn from the lower part of the upper fractionation tower of the fractionation tower, and is cooled and liquefied in the liquid oxygen heat exchanger as the liquid oxygen product; after being reheated by the liquid nitrogen liquid air subcooler and the main heat exchanger, at least part of the nitrogen from the top of the fractionation tower enters the LNG heat exchanger for precooling and heat exchange to high-pressure nitrogen after throttling and expansion After that, through the gas-liquid separator, nitrogen and some liquid nitrogen participate in the nitrogen circulation, and the rest liquid nitrogen is used as liquid nitrogen products;

The power consumption of the device is 1.2-1 kwh, which is 1.4 times of the power consumption of the liquid oxygen separation device. liquid nitrogen tank

Related contents

shrink
  • Telephone consultation

  • 010-80204245
  • Wechat consulting