The Liabilities Avoided in Daily Life of Liquefied Petroleum Gas Cylinders and Analysis of the Causes

- Dec 18, 2017-

The Liabilities Avoided in Daily Life of Liquefied Petroleum Gas Cylinders and Analysis of the Causes

1, the user dumping rags privately

As the raffinate is relatively difficult to gasify for combustion, it is volatile, flammable and explosive, and is stronger than gasoline, and its gas is heavier than air and has diffusibility. If you mess up residual liquid, then the volatile gas phase or its own liquid in the proliferation, flow in the event of a source of fire, burned and exploded. When chaos dribbles, the air is likely to enter the cylinder, and cylinder residual combustible gas mixture to form an explosive mixture, if you encounter sparks or sulfide will cause the cylinder explosion and cause great damage. In addition, because the air entering the cylinder can not be liquefied, which will cause the difficulty of the next filling. At the same time, the raffinate also pollutes the environment, therefore it is forbidden to dump the residual liquid by the cylinder. At present, the residual liquid from the cylinder is pumped by the filling station staff using pumping equipment to a specially stored residual liquid tank in the gas station. The company is located in:

2, the user bottle over the bottle

Excessive cylinder means that the user will privately pour liquefied petroleum gas from a cylinder into another cylinder. Because over-gas is the direct delivery of liquid hose, over-gas system to withstand higher pressures, it is likely to rupture. In the over-gas process, it is difficult to ensure that the joints are tight leaks, environmental conditions will certainly not meet the safety requirements. In the event of a leak, the leaking liquid will soon vaporize and diffuse to a volume of 200-300 times. In the event of a fire and explosion involving a fire source such as a stove, smoking, switchgear, etc., it will not only injure itself but also endanger the surrounding residents. Cylinder gas. The company is located in:

3, with a flame baked, boiled water or exposure cylinder

Because this will make the cylinder temperature exceeds its maximum allowable temperature caused by overpressure, may be an accident; easy to produce partial pressure and deformation of the cylinder, damage to material properties, is not conducive to the safe use of cylinders, reducing service life. If the gas cylinder is exposed to the sun, near the open flame or where the temperature is high, the pressure inside the gas cylinder will increase with increasing temperature. If the temperature is too high, the pressure in the bottle may rise abnormally, causing an accident. The company is located in:

4, inverted or lying down using the cylinder

Because the gas cylinder mounted on the decompressor is the role of liquefied petroleum gas, if the cylinder upside down or lie down, it will flow out of liquid, the liquid into a gas to 200-300 times the size of the proliferation of mixed with the air after , It will cause a large area of combustion, or even an explosion, so it is very dangerous. The company is located in:

5, cylinder overloaded

All types of gas cylinders have their filling coefficient and the maximum filling volume, should be the pressure of each cylinder to withstand a certain amount of liquefied gas at room temperature to fill the general liquid into the bottle, when the ambient temperature increases, Part of the liquid into gas to increase the pressure inside the bottle, the expansion coefficient of liquefied petroleum gas is 16 times that of water, due to overfilled with liquid temperature rise after the expansion of liquid pressure in the container, the steel temperature for each increase 1 ℃, the pressure will rise 2 ~ 3Mpa. So, as long as the temperature increased 3 ~ 5 ℃, the internal pressure will exceed the limit of 8Mpa ordinary cylinders. Will lead to burst burst bottle accident, so the cylinder must be filled in when leaving some space. The company is located in:

6, the use of cylinders over the inspection cycle

As the cylinder in use, due to the different environment, due to corrosion or mechanical impact on the bottle caused by various injuries or long-term use, the bottle valve seal wear failure, the use of its safety performance to varying degrees Threatened, in addition, some cylinders due to manufacturing reasons there will be some defects, and these defects with the naked eye can not be judged. Therefore, in order to ensure safety, gas cylinders must be regularly inspected as required.