In general, the material nitrogen for liquid nitrogen quick freezing is inactive. When heated to very high temperatures it reacts with more active metals such as lithium and magnesium to form nitrides. It also reacts with oxygen to form nitrogen oxides, and when a catalyst is present it reacts with hydrogen to form ammonia.
Because nitrogen is non-corrosive, no special building materials are required. However, the selected building materials must be able to resist the low temperature of liquid nitrogen. The container and piping system should be designed according to the relevant pressure and temperature according to the standards of the relevant national agencies or the regulations of the Ministry of Communications.
Although generally used as a gas, nitrogen is generally stored and transported in liquid form, which lowers the cost of product supply.
When nitrogen is converted into a liquid, it becomes a cryogenic liquid. A cryogenic liquid is a liquefied gas with a boiling point generally below –238 ° F (–150 ° C). The boiling point of liquid nitrogen is –320.5 ° F (–195.8 ° C). Because the temperature difference between the product and the surrounding environment is very large even in winter, it is important to keep liquid nitrogen isolated from the surrounding environment. The product also requires specialized use and storage equipment.
1. A typical storage system consists of a cryogenic storage tank, one or more vaporizers, a pressure control system, and all piping systems used for filling, vaporization, and supply. The cryogenic tank is made like a vacuum bottle. Designed so that heat cannot enter the liquid nitrogen in the inner tank. The vaporizer converts liquid nitrogen to gaseous state. The pressure control tube controls the gas pressure input to the process. The process of using liquid nitrogen does not require a vaporizer and pressure control tube.
Nuoruida (Tianjin) science and Technology Co., Ltd. is committed to research, development, and sales of liquid nitrogen cryogenic equipment. Using European technology, we provide a variety of equipment. The main equipment is liquid nitrogen Cryogenic treatment equipment, cryogenic furnace, sub-zero processing equipment, low temperature cold assembly equipment, cryogenic freezing equipment, and so on.
