Cryogenic liquid pump is used to transport cryogenic liquids (e.g. oxygen, liquid nitrogen, liquid argon, liquid hydrocarbons and liquefied natural gas) in a special oil pump, air separation and chemical apparatus, whose purpose is the cryogenic liquid from the low pressure the high pressure is delivered to the place of accommodation. With the development of air separation technology, cryogenic liquid has been widely used and development. Air separation plant in its main role is used in the liquid circulation, or to extract the liquid from the tank and press it into the carburetor, after vaporization to the user.
Because the media are pumping cryogenic liquid cryogenic liquid transport medium in the process should be kept low, if once more from around the pump absorbs heat, the pump will be a lot of vaporization of cryogenic liquid, producing gas, thus affecting the pump working . So cryogenic pumps in the structure, materials, installation and operational aspects such as its special requirements in order to achieve low-temperature liquid delivery requirements.