After the end of the artificial insemination of livestock, some livestock collocated the liquid nitrogen tank placed side unmanned. I do not know the liquid nitrogen tank of liquid nitrogen after evaporation, the remaining frozen fine particles quickly melt into liquid frozen semen, attached to the liner.
As the semen potassium, sodium, chlorine, calcium, magnesium and other ions, the corrosion of aluminum alloy liner, resulting in jujube like a large hole, resulting in liquid nitrogen tank scrapped.
Therefore, after the liquid nitrogen consumption should be promptly scrub liquid nitrogen tank. Scrub method; first liquid nitrogen tank inside the barrel out, remove the liquid nitrogen, the tank temperature to rise to 0℃ or so, pour about 30 ℃ warm water, scrub with a cloth. And then rinse with water several times, and then inverted liquid nitrogen tank, placed in the room naturally dry. Note that the entire process of scrubbing, the action should be slow, clean water temperature does not exceed 40 ℃, the number of not more than 2 kg.