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Process for preparing high-pressure medical oxygen

A high-pressure oxygen and high-pressure technology, applied in the field of high-pressure medical oxygen production technology, can solve the problems of large maintenance workload, high maintenance cost, large floor space, etc., and achieve the effects of less danger, lower energy consumption requirements, and avoidance of pollution.

Inactive Publication Date: 2012-06-13
无锡威克亨盛机械制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the traditional use of oxygen compressors to fill medical oxygen can no longer meet this requirement. At the same time, oxygen compressors have high energy consumption, high risk, heavy maintenance workload, high maintenance costs, and large floor space.

Method used

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  • Process for preparing high-pressure medical oxygen
  • Process for preparing high-pressure medical oxygen

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Embodiment Construction

[0012] Preparation of high-pressure medical oxygen products requires a pressure of 15Mpa: see figure 1 , the raw air passes through the air filter 1 to remove dust and impurities in the air, and then is compressed to 1.2MPa by the air compressor 2, then the air temperature is lowered by the air-conditioning unit 3, enters the water separator 4 to separate free water, and then enters the purification system 5. Remove H 2 O.CO 2 、C 2 h 2 and other hydrocarbons, the purified air is divided into two paths: one path enters the high-pressure oxygen coil heat exchanger 6, and exchanges heat with supercritical liquid oxygen, and the purified air is condensed while the liquid oxygen is vaporized into normal temperature and high pressure oxygen It is a saturated liquid; the other path passes through the main heat exchanger 7 to exchange heat with the expanded waste gas and cools to the saturation temperature; these two paths of saturated liquid and air merge and then enter the conden...

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Abstract

The invention provides a process for preparing high-pressure medical oxygen. By the process, the oxygen has high concentration and low impurity content and does not contain toxic and harmful media, the whole process is low in energy consumption and danger, and process production equipment has low maintenance amount, is low in cost and occupies small area. The process sequentially comprises air impurity removal, compression, precooling and purification steps, and is characterized by comprising the following steps of: introducing the purified air into a main heat exchanger and a high-pressure oxygen wound-tube heat exchanger in two paths respectively; cooling to a saturation temperature, mixing and introducing into a tower bottom condensation evaporator of a rectifying column; performing phase-change heat exchange together with liquid oxygen, subcooling in a subcooler, rectifying on the top of the rectifying column, and thus obtaining the liquid oxygen at the bottom of the rectifying column; and boosting the liquid oxygen, exchanging heat with the purified air in the high-pressure oxygen wound-tube heat exchanger, vaporizing in a supercritical state, restoring to a normal temperature, discharging the oxygen from an ice chest, directly bottling, and thus obtaining the high-pressure medical oxygen.

Description

technical field [0001] The invention relates to the technical field of air separation, in particular to a high-pressure medical oxygen preparation process. Background technique [0002] With the development of social economy and the improvement of people's living standards, the demand for medical oxygen is increasing. At the same time, higher requirements are put forward for the quality of medical oxygen. Toxic and harmful media. In the past, the traditional use of oxygen compressors to fill medical oxygen can no longer meet this requirement. At the same time, oxygen compressors have high energy consumption, high risk, heavy maintenance workload, high maintenance costs, and large floor space. Contents of the invention [0003] In view of the above problems, the present invention provides a high-pressure medical oxygen production process, which makes the concentration of oxygen high, low in impurities, and does not contain toxic and harmful media, and the energy consumptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J3/04
Inventor 卢红太周世博龚俊祥杨玉军韩万强谢松来
Owner 无锡威克亨盛机械制造有限公司
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