Causes and preventive measures for explosion accidents of pressure vessels
Release time：2018-08-29 Browse：502
Causes and precautions for pressure vessel explosions
Cause of accident: overpressure, over temperature, partial damage to the container, failure of the safety device, etc.
Hazard:
a, shock wave and its destructive effect: shock wave overpressure can cause casualties and damage to buildings.
b. Destruction of blasting debris: causing serious injury or death, damage to nearby equipment and pipes, and causing secondary accidents.
c, media damage: media damage is mainly poisonous to toxic media and high temperature water vapor burns.
d, secondary explosion and combustion: When the medium contained in the container is a flammable liquefied gas, the container ruptures and explodes to form a large amount of flammable vapor at the site, and It is quickly mixed with air to form a explosive mixture. In the event of a fire, a secondary explosion is formed, which often turns the vicinity of the site into a sea of fire, causing major harm.
Prevention:
(1) In design, a reasonable structure should be used.
(2) Strengthen welding management during manufacturing, repair, installation and transformation, improve welding quality and heat treatment and flaw detection according to specifications; strengthen material management Avoid using defective materials or using wrong steel and welding materials.
(3) Strengthen the use of management to avoid operational errors, over temperature, overpressure, overload operation, misdetection, disrepair, safety device failure, etc.
(4) Strengthen inspections, identify defects and take effective measures in a timely manner.
