Safety requirements for painting operation of the

Safety requirements for ship painting operations

ship painting operations are mostly carried out in closed cabins and limited spaces. Due to the large contact surface between the paint and the air after spraying, the solvent contained volatilizes rapidly, and a large number of flammable and explosive gases can be volatilized at the same time, Because these gases are heavier than air, they are not easy to diffuse (also known as inert gases), especially in closed compartments or limited spaces of ships (closed compartments mainly refer to ballast tanks, forepeak tanks, fresh water tanks, large cabins of oil tankers, as well as various closed containers, partitions, etc. Limited spaces mainly refer to closed, narrow and poorly ventilated spaces with only one or two manholes, and only one person is allowed to enter and exit) When spraying paint inside, it is more difficult to diffuse. In addition, the coating process requires a long continuous operation time (generally, the cabin needs to be sprayed three times), which also frequently emits a large number of flammable and explosive gases. Therefore, the ship painting workplace belongs to the dangerous area of explosive gas environment, and the dangerous warning area should be specially divided

there is a lot of heat and electric energy around the inspection area of ship coating that cannot meet the requirements of ordinary materials after purchase. The heat energy mainly includes the welding flowers, sparks and released heat of electric welding and gas welding, the heat converted by mechanical operation, high temperature, etc. Electric energy mainly includes lighting fixtures, welding wires, heat generated by various currents, etc., which also has no air leakage phenomenon. Some energy is enough to detonate the innovative and practical flammable and explosive gases generated in the ship painting operation area. It can be seen that the ship painting area has the conditions for explosion accidents as a bribe for technology development, transfer and dispersion, and the first commercial use of innovative chain industry, A little carelessness will cause mass casualties, so we must strengthen on-site management and control

in order to prevent accidents in ship painting operations, the management of painting operations is mainly to prevent and control hot work and other unsafe factors, which is the premise of doing a good job in ship painting operations

therefore, the approval system shall be strictly implemented for the ship painting operation, and the ship project manager or supervisor, the security inspector and the person in charge of the operation are required to sign on the approval form before the operation can be carried out as required

warning areas, warning signs, warning signs, warning lines, warning flags, etc. must be set up as required before the painting operation of the ship, to enclose the scope of painting operation, and fire and explosion prevention warning signs must be set up at the entrances and exits of critical operators. Other construction operations and open fire operations are strictly prohibited in the warning area

all power lines, welding lines, oxygen acetylene belts and power distribution facilities shall be removed within the scope of painting operation

the scaffold used at the painting site must be firm, and no iron objects and iron pieces are allowed to be placed on the scaffold

the painting workplace should have good ventilation requirements, with both inlet and outlet. If there is only one inlet, a temporary air outlet must be opened to ensure smooth exhaust

the lighting used in the painting workplace must be explosion-proof cordless lights. The operators must wear cotton protective clothing, and must not wear protective shoes with iron palms. They must not bring kindling materials such as, lighters, walkie talkies into the site

during the coating operation, the construction unit shall send personnel to patrol and inspect. If unsafe factors are found, they shall be handled in time. The construction personnel should change the ventilation regularly to prevent poisoning. The security inspection personnel shall conduct regular on-site supervision

sufficient fire-fighting equipment such as fire extinguishers should be set up at the painting site for regular inspection and replacement to ensure that they are in good and effective condition