The normal service life of gas cylinders is 15 years, and gas cylinders that have not exceeded 15 years of service life should be tested every 4 years; those that have exceeded their service life should be scrapped compulsorily.
The national standard "liquefied petroleum gas cylinders" has been February 1, 2007 onwards. The standard, according to GB5842-2006 standard manufacturing cylinder design life of 8 years, the design life is not for the cylinder end-of-life, cylinder end-of-life by the inspection and evaluation to determine.
At present, the end-of-life of LPG cylinders and periodic inspection cycle is still according to the current national standard "LPG cylinder periodic inspection and evaluation" (GB8334), but for the shroud with screws connected to the cylinder, such as cylinders on the cylinder body does not have any permanent date of manufacture of the steel seal and other permanent original steel seal.
According to the national standard "liquefied petroleum gas cylinder periodic inspection and evaluation" (GB8334) should not be inspected, all according to the end-of-life treatment. The cylinder inspection unit should be strictly in accordance with national standards, "LPG cylinder inspection and evaluation" (GB8334) for the regular inspection of cylinders.
The inspection of the cylinder must have a permanent steel seal of the original manufacturing date, inspection units are strictly prohibited to refurbish the above end-of-life cylinders flow back to the filling process. Everywhere found such refurbished end-of-life cylinders, in accordance with the "Special Equipment Safety Supervision Regulations" of the relevant provisions to be dismantled and scrapped, and refurbished end-of-life cylinders to be punished according to law to eliminate the hidden dangers of insecurity.
That is to say, the normal service life of a gas cylinder is 15 years, not more than 15 years of service life of the gas cylinder, should be tested every four years; more than the use of life, to be mandatory scrapping.
Expanded information:
Safe Use
Prevent the gas cylinder from heat. The use of gas cylinders should not be placed in the hot sun, not close to the fire and high temperature area, from the open fire should not be less than 10 m; shall not use high-pressure steam blowing gas cylinders; prohibit the use of hot water defrosting and open flame baking, is strictly prohibited to use the temperature of more than 40 ℃ of the heat source of the gas cylinder heating.
Cylinders should be placed on the stand to prevent tipping measures; open the valve should be opened slowly to prevent the attachment of the high temperature of the rapid pressurization; cylinders of flammable gases, can not be used to knock cylinders such as steel tools, to prevent the generation of sparks; oxygen cylinders of the valve and its attachments are not allowed to be stained with oil and grease, hands or gloves are stained with grease, do not operate the oxygen cylinder.
Cylinders should be used to leave a residual gas at the end of the use, mainly to prevent the mixing of other gases or impurities and cause accidents. Cylinders used for the possibility of reflux (backflow) occasions, there must be a device to prevent backflow, such as check valves, check valves, buffer tanks and so on. The residual oil and gas in the LPG cylinder should be recovered by the facilities with safety measures, and should not be disposed of by itself.
Strengthen the maintenance of gas cylinders. Paint layer on the outer wall of the cylinder can be corrosion-resistant, but also to identify the signs, can prevent misuse and mixing, to maintain the integrity of the paint surface and the sign of clarity. Bottle mixed into the water will accelerate the corrosion of the inner wall of the cylinder, in the filling of the cylinder must be dry before processing. Cylinders using units shall not change their own gas filling varieties, unauthorized replacement of the color of the cylinder logo.
It is necessary to replace the application should be made by the cylinder inspection unit responsible for the cylinder modification. The unit responsible for the modification of the cylinder according to the manufacturing seal mark and safety conditions, to determine whether the cylinder is suitable for the gas to be replaced. Retrofitting, the cylinder should be thoroughly cleaned internally, inspection, stamping and coating inspection mark, change the appropriate accessories, replacement of the modified gas lettering, color ring and color.
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