Liquid oxygen preparation system and preparation method thereof

Abstract

The invention discloses a liquid oxygen preparation system and a preparation method thereof. The preparation system comprises a bottom plate, a mounting seat is fixedly arranged on one side of the upper end of the bottom plate, an air blower is fixedly arranged at the upper end of the mounting seat, an air inlet pipe is fixedly arranged on one side of the surface of the air blower, and a filtering mechanism is arranged on the surface of the outer side of the air inlet pipe; and the filtering mechanism comprises a filter element, a fixing ring, a connecting ring, a sealing groove and a sealing ring, the upper end of the outer side surface of the air inlet pipe is sleeved with the filter element, the fixing ring is fixedly arranged at the position, at the lower end of the filter element, of the outer side surface of the air inlet pipe, the connecting ring is fixedly arranged on the outer side surface of the lower end of the filter element, and the sealing groove is formed in the periphery of the upper end surface of the fixing ring. The system is good in use effect, air can be conveniently pretreated through a pre-purification mechanism, so that nitrogen and oxygen can be separated, a part of nitrogen with the highest content is removed, and subsequent extrusion and cooling of oxygen can be facilitated to prepare liquid oxygen.

Description

technical field [0001] The invention relates to the field of liquid oxygen preparation, in particular to a liquid oxygen preparation system and a preparation method thereof. Background technique [0002] Liquid oxygen is the form of oxygen in its liquid state. It has important applications in aerospace, submarine and gas industry. Liquid oxygen is a light blue liquid with strong paramagnetism. [0003] Liquid oxygen has a wide range of industrial and medical uses. The industrial method of producing liquid oxygen is to fractionate liquid air. The total expansion ratio of liquid oxygen is as high as 860:1, because of this advantage it is widely used in industrial production and military in modern times. [0004] When preparing liquid oxygen (here refers to the preparation of industrial liquid oxygen), the general steps are air filtration and dust removal, air compression and pressurization to increase the boiling point, and then air cooling, through the different boiling p...

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Problems solved by technology

[0005] However, the currently used liquid oxygen preparation system has the following deficiencies in use; the current liquid oxygen preparation system lacks a preliminary nitrogen and oxygen separation structure when in use, and it must be known that most of the air is nitrogen, and in the follow-up This part of nitrogen will participate in the process of pressurization and cooling, so not only a large amount of pressurization energy but also a large amount of cooling capacity will be consumed, so it is a waste of energy to use; at the same time, the current liquid oxygen preparation system is often used. A drying step is added to remove the water vapor inside the air that needs to be processed to remove some impurities. However, the current equipment cannot use the refrigerant in the liquid oxygen production equipment for drying during drying, so it is easy to waste a part of energy

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