Knowledge of the safety of liquefied petroleum gas cylinders

Cylinder is strictly prohibited

Due to super filled with liquid with temperature increasing and in the container produce expansive pressure of liquid, liquid expansion pressure with temperature increasing and the magnitude of the force is amazing, assuming a temperature ruler increased 5 DEG C, expansion of the liquid pressure increases about 135Fgf/cm2 (without considering the cylinder's deformation), and the pressure over tank under pressure, will have a blast. Therefore, regulations prohibited the overload.

No dumping residues

Due to the residual liquid C5-C6 although relatively C3, C4 is difficult to gasification to supply gas appliance burning, but the volatile, flammable and explosive is still very strong, and strong in the gas, the gas is heavier than air, also has spread. If the chaos of the residual liquid, then its volatile gas phase or liquid phase itself in the diffusion, the flow of the process once encountered various forms of fire, fire and explosion will occur. Chaos residual liquid, the air is likely to enter the cylinder, and the cylinder residual combustible gas mixture and form explosive mixtures, if meet again generated by electrostatic spark, or sulfide caused the spark, the cylinder will occur chemical explosion and the formation of massive destruction. In addition, the air enters into the cylinder, because it can not liquefaction, caused by the next filling difficult and residual liquid from polluting the environment, while the non cylinder dumping residue.

Cylinder gas is strictly prohibited

Cylinder breath is refers to the user at home without permission will be a cylinder of liquefied petroleum gas intrusion into another cylinder and should be paid attention to in cylinder production line. Because the gas is directly used to transport the liquid, the gas system to withstand high pressure, it is likely to rupture. In the process of gas, it is difficult to ensure that the connection is not tight. Environmental conditions will not meet the safety requirements. In the event of leakage, leakage of liquid quickly spread in a 250 times the volume of gasification, in case of fire, smoke, electrical switches and other sources of ignition combustion explosion accident, not only harm themselves and will endanger the surrounding residents. Therefore, it is strictly prohibited to cylinder to breathe.

If the sealing ring off, damaged, it is to replace the new sealing ring installed. In order to prevent the valve and the cylinder angle valve port junction leakage, the valve must be tightened. If the sealing ring on the hand wheel is not screwed, pressure relief valve is loose, even if the sealing ring is intact, pressure relief valve and cylinder angle valve port connection also appeared leakage, resulting in an accident.

Liquefied petroleum gas cylinders must be periodically tested

Liquefied petroleum gas cylinder hemisphere under stress condition, inside the materials and surface and weld connection may produce various types of defects, or the original within the allowable range of defects expanded; due to the corrosion of sulfide and water lead to the cylinder wall thickness thinning; performance after long time working materials and parts of the reduce operation and machinery. Therefore, periodic inspection shall be carried out.

Flame is prohibited to bake, hot water or exposure cylinder

Because of this the cylinder temperature exceeds the allowed maximum temperature caused by overpressure accidents can happen; cylinder is easy to produce local pressure and deformation, damage the material performance, is not conducive to the safety of the cylinder using, reduce service life.

Gas cylinders should be placed in ventilated dry, easy to move and not easily corroded place. In order to change the ventilation or accident, more convenient to move out. To prevent moisture or fly oil salt, oil corrosion of the cylinder, to maintain the cleanliness of the cylinder.

A gas storage bottle to prevent exposure, prohibited near the fire or high temperature place. Because the gas cylinder pressure is increased with the increase in temperature, once caused by abnormal pressure rise in the bottle, it will be dangerous.

Cylinders to erect, prohibited use of inverted or lie down, because the cylinder is installed on the top of the regulator is to liquefied petroleum gas gas, if the bottle upside down or lying upside down, will be out of the liquid and the liquid became gas is 250-300 times diffusion is mixed with air, it will cause combustion of large area, and even explosion, so it is very dangerous.

No matter whether it is a full or empty bottle, it is forbidden to fall, kick, roll and crash. Because light is damaged paint, heavy cylinder deformation scrapped, and even make cylinders damaged, fire, explosion.

When used to flat cylinder and stove placed between the bottle and the stove, the lateral distance of not less than 80 cm. Not allowed under the stove placed cylinder, caused by the accident to prevent air leakage.