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Sell Liquid nitrogen generator

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  • Company Name :Hangzhou Scala Filtration Technology Co.,Ltd.
  • Membership :Free member
  • Registrarion Date :2020. 06. 19
  • CountryRegion:China
  • Address:Room 313, unit 1, building 56, chunmanli, Liangzhu Culture Village, Liangzhu street, Yuhang Hangzhou Zhejiang, China
  • Phone / Fax:86-571-86176836  /  
  • Contact:Sean Wu
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Description

Liquid nitrogen generators use nitrogen as a cold source to cool liquid air or liquid nitrogen. There are two types of subcoolers: plate and tube. When a leak occurs, it will affect the normal operation of the fractionation tower. It has two situations:
1) Liquid air and liquid nitrogen leak to the nitrogen side. Because the liquid air leaks to the nitrogen side, the liquid nitrogen generator will be further recovered in the heat exchanger, so the increase in cold loss is not obvious, but the cold end temperature is small. Will drop, the cold end is too cold. In the case of liquid air leakage, due to the low nitrogen concentration of the liquid air, leakage into the gas nitrogen will reduce the purity of the gas nitrogen. After the liquid leaks, the amount of liquid entering the upper tower is reduced, and the reflux liquid is reduced, which will worsen the rectification conditions and reduce the oxygen production. In severe cases, the fractionation tower will not work properly.
2) The gas nitrogen leaks out of the device. This usually occurs at the weld or flange of the connecting pipe. When gas nitrogen leaks out, the amount of gas nitrogen entering the heat exchanger decreases, the degree of supercooling of the liquid decreases, and the gasification rate increases after throttling. At the same time, because this part of the nitrogen that has not been reheated is leaked through the insulation material, the gas nitrogen output decreases, the cold loss increases, the shell frosts, and the liquid oxygen level of the condensing evaporator drops.
Source: https://www.hzscala.com/

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  • Sell Liquid nitrogen generator

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