Medical use of oxygen rich membrane oxygen production, use of medical oxygen concentrator

The oxygen concentrator is suitable for oxygen therapy and health care in medical institutions and families, and its main uses are as follows:

1. Medical function: by supplying oxygen to patients, it can cooperate with the cardiovascular and cerebrovascular, respiratory system, etc. Chronic obstructive pneumonia and other diseases, as well as gas poisoning and other severe hypoxic conditions.

2. Health care function: improve the oxygen supply of the body through oxygen supply, and achieve the purpose of oxygen supplementation and health care. It is suitable for middle-aged and elderly people, people with poor physical fitness, pregnant women, college entrance examination students and other people with different degrees of hypoxia, and can also be used to eliminate fatigue and restore physical function after heavy physical or mental exertion.

3. The oxygen concentrator is suitable for small and medium-sized hospitals, clinics, health stations in cities, villages, remote areas, mountainous areas, plateaus, etc. It is also suitable for nursing homes, home oxygen therapy, sports training centers, plateau military stations and other oxygen-using places.

Most commercial oxygen is produced by air separation. That is, the air is liquefied and purified by rectification. Low-temperature total distillation is also available.

A small amount of oxygen is made of electrolytic oxygen as raw material, and high-purity oxygen with a purity of more than can be produced by catalytic dehydrogenation. Other purification methods include pressure swing adsorption and membrane separation.

Uses: Metallurgical industry In the process of steelmaking, high-purity oxygen is blown, and oxygen reacts with carbon and phosphorus, sulfur, silicon, etc., which not only reduces the carbon content of steel, but also helps to remove impurities such as phosphorus, sulfur and silicon. In addition, the heat generated during the oxidation process is sufficient to maintain the temperature required for the steelmaking process, so the oxygen blowing not only shortens the smelting time, but also improves the quality of the steel.

When blast furnace ironmaking, increasing the oxygen concentration in the blast can reduce the coke ratio and increase the output. In non-ferrous metal smelting, the use of oxygen enrichment can also shorten the smelting time and increase the output.

Chemical industry In the production of ammonia, oxygen is mainly used for the oxidation of feedstock gases, such as high-temperature cracking of heavy oil and gasification of pulverized coal, to strengthen the process and increase fertilizer production.

National defense industry Liquid oxygen is the best accelerant for modern rockets, and liquid oxygen is also needed as an oxidizer in supersonic aircraft.

Healthcare: Supply respiratory: for hypoxia, hypoxia or none.

Oxygen environment, e.g. diving, mountaineering, high-altitude flight, astronautics, medical rescue, etc.

In addition, oxygen has a wide range of uses in metal cutting and welding.

The rapid development of society has brought about problems such as air pollution and deterioration of the living environment, which have become huge challenges to human survival. Therefore, oxygen-rich air conditioners, oxygen-rich machines, oxygen bars, and oxygen-rich water came into being. For example, oxygen-rich air conditioning can start from the root, change the oxygen enrichment of the air, adopt advanced oxygen-rich system, through the oxygen-enrichment device on the external machine, extract the air with an oxygen content of only 21% from the outside, and quickly increase the oxygen content to more than 30% after special oxygen-rich membrane treatment, and transport oxygen to the room by a special channel to increase the indoor oxygen concentration, which effectively solves the problems of fatigue, drowsiness, insufficient brain supply, and hypoxic aging caused by too low oxygen in confined spaces.

At the same time, due to the unique structure of the oxygen-rich membrane, it can effectively isolate bacteria and dust in the outdoor air, so that the virus will not be cross-infected and multiplied by the exchange of indoor and outdoor air, and the clean air activates oxygen to create a relatively independent healthy environment.

With the growing demand for fresh oxygen, an oxygen fountain bar has been set up in major cities such as Los Angeles in the United States. In the oxygen fountain bar, people hold transparent oxygen tanks, which are plugged into an exquisite external absorption device, and when they inhale gently, the pure oxygen in the tank gushes out. Oxygen with lemon or other scents can be delivered continuously for 20 minutes.

In addition, other oxygen-related products in the United States continue to emerge, such as various oxygenated water, oxygenated soda, oxygenated plastic pills, etc. The emerging consumption of oxygen has formed a new trend. Figure 1 is a group of oxygen inhalation abroad**.

Oxygen-rich membrane oxygen production is to use the characteristics of polymer oxygen-rich membrane to allow oxygen molecules in the air to pass preferentially, collect high concentrations of oxygen, and deliver it to users. In other words, oxygen in the air is concentrated and supplied to users through physical devices. The home oxygen concentrator can produce about 3 liters of oxygen with a concentration of about 30% per minute, which increases the oxygen concentration of ordinary air by 21%.

At a certain pressure, air can be passed through a membrane with oxygen-enriching function to obtain oxygen-rich air with high oxygen content. By using this membrane for multiple separations, oxygen-rich air containing more than 90% oxygen can be obtained. The research on oxygen-rich membranes has been used in medical treatment, fermentation industry, chemical industry, oxygen-rich combustion, etc.

Oxygen-rich membrane technology is now mainly used in industrial and commercial occasions that do not require ultra-high purity oxygen, such as oxygen-enriched air conditioning, oxygen-enriched combustion, oxygen-enriched medical treatment, oxygen-enriched aquaculture, etc.

1) Oxygen-rich air conditioner.

Increase oxygen content through air conditioning, such as the oxygen bar air conditioner developed by Haier Company in China. The principle is that a layer of oxygen-rich membrane is added to the air conditioner, and the oxygen concentration can be increased to about 30% after the air passes through the membrane, so that the indoor air oxygen is sufficient, which ensures people's vitality and avoids the occurrence of air conditioning disease.

2) Oxygen-rich combustion.

The membrane oxygen-enriched combustion technology was first successfully applied in domestic glass furnaces in 1989, and can now also be used for combustion in internal combustion engines. The oxygen concentration can reach 28%-29%, which can improve the combustion efficiency of the fuel, improve the power performance, and greatly reduce the exhaust volume. Experience has shown that the use of % and 27% oxygen-rich air to support combustion, the corresponding energy saving of 10% to 25%.

2o%--50%. The popularization and application of oxygen-rich membrane technology can not only improve the utilization rate of fuel, but also protect the environment.

3) Oxygen-enriched health care.

Because membrane oxygen enrichment has a more economical, safer and more convenient effect than other oxygen sources, membrane oxygen enrichment health care device has become the world's most advanced medical low-concentration oxygen production equipment. It can be mainly used for patients with respiratory diseases such as asthma, chronic bronchitis, emphysema, etc., at home**, without the need for long-term hospitalization to receive oxygen**. And 40% of the air can be used directly, without the use of oxygen cylinders, ** only 1 3-1 4 bottled.

In addition, the oxygen-rich membrane can also be used in the catalytic oxidation of chemical products, the oxygen supply of fish fry transportation and the oxygen supply of aircraft high-altitude driving.

Membrane oxygen enrichment technology Oxygen enrichment principle: membrane oxygen enrichment is to use the different permeation rates of each component in the air when they penetrate the membrane, and under the drive of pressure difference, the oxygen in the air preferentially passes through the membrane to obtain oxygen-enriched air.