First, you need to understand the negative effects of oxygen! Oxygen is an essential gas for human survival, without which humans can suffocate in just a few minutes. However, in the case of high oxygen content, the damage to human beings can not be ignored. In addition, oxygen is a variety of combustible gas combustion agent, can react with a variety of toxic and harmful gases, oil may cause blasting accidents. What a great.

1. the negative effect of excessive oxygen inhalation:

If people are greater0.05MPa(half atmospheric pressure)In the pure oxygen environment, it has a toxic effect on all cells. If the inhalation time is too long, it may cause "oxygen poisoning". Pulmonary capillary barrier is damaged, resulting in pulmonary edema, pulmonary congestion and hemorrhage, seriously affecting respiratory function, and then make the organs hypoxia and attack damage. In0.1MPa(1Atmospheric pressure)In a pure oxygen environment, people can only survive.24Hours, will attack pneumonia, eventually leading to respiratory failure, suffocation and death. People in0.2MPa(2Atmospheric pressure)High pressure pure oxygen environment, more can stay1.5Hours~2Hours, more than will cause brain poisoning, life rhythm disorder, energy disorder, memory loss. Such as participation0.3MPa(3Atmospheric pressure)Even higher oxygen, people will attack within a few minutes of brain cell degeneration and necrosis, convulsions coma, resulting in death. Kan Kan

In addition, excessive oxygen inhalation will also promote life aging. The oxygen that enters the body reacts with the oxidase in the cell to generate hydrogen peroxide, which in turn becomes lipofuscin. This lipofuscin is a harmful substance that accelerates cell aging. It accumulates in the heart muscle, causing myocardial cells to age and cardiac function to decline.;Pile up on the walls of blood vessels, causing them to age and harden;Accumulation in the liver, weakening liver function;Piled up in the brain, resulting in a decline in intelligence, memory, people become dazed.;Accumulated in the skin, constitute the age spots. The effects of 2. oxygen deficiency and oxygen enrichment on the human body:

Oxygen concentration(%Volume)Omen(Under atmospheric pressure)>23.5%Oxygen-rich, there is a risk of intense blasting.

20.9% Oxygen concentration Normal.

Allowable concentration of oxygen: 19.5%

15-19 %Work efficiencyDescentand can slow the head, lungs and circulatory system.

10-12% shortness of breath, loss of judgment, purple lips.

A loss of intelligence of 8-10%, fainting, unconsciousness, pale face, purple lips, aversion to vomiting.

6-8% for more than 8 minutes.

Stop breathing in 4-6 @ seconds,

Other aspects:

For example, it itself is used as a combustion aid in cooperation with acetylene, propane and other combustible gases to achieve the effect of welding and cutting metals. It is widely used in all walks of life, especially in machinery companies, and is also very convenient for cutting. It is a preferred cutting method. Please install oxygen alarms or portable oxygen detectors, oxygen detectors and other gas inspection instruments in underground mines, mines and places where oxygen leakage is dangerous to ensure the safety of personal life and property.

WeApolloCompanyAgent of the United KingdomAlphasenseTwo-year conventional electrochemical principle oxygen sensorO2-A2, professionally usedO2Concentration monitoring and alarm. It has the characteristics of good stability, high sensitivity, fast response and high cost performance.

The main performance parameters are as follows:

1.   Test range:0-30%

2.   Sensitivity:80-120uA(20.9%)

3.   High resolution:0.1%

4.   T90 response time:

5.   Working environment:-30~50℃,10~90%RH