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Industry Gases Use Common Sense
Sep 14, 2017

Industry Gases Use common sense

Gas safety USES common sense

I. gas type

1) compressed gases: oxygen, hydrogen, nitrogen, helium, etc.

2) dissolved gas: acetylene (dissolved in acetone)

3) liquefied gases: carbon dioxide, sulfur dioxide, propane, petroleum gas.

4) low-temperature liquefied gases: liquid oxygen, liquid nitrogen, liquid argon, etc.

Gas containers and color marks

1) oxygen, nitrogen, hydrogen, argon, carbon dioxide and other high-pressure gases are made of seamless steel cylinders. Acetylene, propane can be used to weld steel cylinders.

2) the high pressure vessel is accompanied by a qualified certificate, which should be kept as a technical file with the high pressure vessel. The inspection date shall be on the time of inspection (for example, once in three years) on the cylinder.

3) low temperature storage tank, low temperature tank car

4) the gas cylinder is marked as follows:

Oxygen - azure nitrogen - black argon - gray hydrogen - green

Ammonia - yellow carbon dioxide - silver - grey acetylene - white propane - soil red

The use of high pressure gas should pay attention to the problem

1) the high-pressure gas container is best kept outside, should be kept upright, fixed firmly, and prevent the sun from direct, the wind and the sun.

2) the acetylene pipe, the pressure gauge is forbidden to be made of copper (60 percent copper), or it will form acetylene copper, which is an explosive agent.

3) the high pressure gas must be equipped with the main decompression device. Its pressure reducer, pressure gauge, catheter should be used for special purpose, and no mutual use is allowed.

4) the high pressure cylinder valve turns on the left and the right turns off, but hydrogen, methane, carbon monoxide and other flammable or poisonous gas cylinder valve outlet threads are anti-buckle. The bottle valve switch applies special handwheel, it is strictly forbidden to use long arm wrench.

5) the valve should be fully opened when opening the bottle, but the acetylene cylinder should not rotate more than 1.5 to prevent the release of acetone.

6) when the acetylene pressure of cylinder is less than 0.5mpa, it should be replaced. Otherwise, the acetone in the cylinder will flow into flames along the line, causing the fire

The flame unsteady noise increases and causes the contamination of the acetylene pipe.

7) the cylinders should be left with 0.5Mpa residual pressure. Prevent gas cylinders from emptying, air entrenches air pollution cylinders or explodes in gas cylinders. Industrial gases are oxygen, nitrogen, argon, neon, helium, krypton, xenon, hydrogen, carbon dioxide, acetylene, natural gas, etc. Because of the inherent physical and chemical properties of these gases, they play an important role in the national economy. They are widely used in all walks of life.

Industrial gas use most of the traditional industries are: steel, iron, non-ferrous metal smelting, chemical fertilizer production, PVC, acrylic casing, PVC, synthetic fiber, synthetic fiber, synthetic leather and silicone rubber products, cable welding in petroleum chemical industry, machinery industry, metal heat treatment, such as helium leak stand, float glass production, etc. As these traditional industries have developed rapidly in recent years, the use of industrial gases has reached its peak.