Safety precautions when repairing boiler units (1986)

Electrical substation.

Power plant machine room.

Safety poster stand.

Boiler and turbine shop manager's office.

The shop manager prepares a work permit for repair of heat exchangers and pipelines.

A work permit form and its completion are demonstrated.

Preparation of equipment for repair by the CHP duty personnel.

Gate valves used to disconnect the boiler being repaired from the operating equipment.

Drainage devices connected to the atmosphere during repair.

A CHP worker works with drainage devices.

Completing a work permit.

Photographs of the shutdown equipment and drainage valves tied with chains.

Continuing to fill out the work permit as the conditions for preparing the equipment for repair are met.

Safety requirements signs are hung on the shutdown valves.

Plugs used to separate the boiler from the operating circuit if the shutdown valves are flanged.

Boiler control panel.

The boiler is disconnected in all directions, the pressure is removed, the water is completely drained.

The smoke exhauster and the blower fan are turned on to reduce the air temperature and cool the boiler flues.

A measuring device showing a decrease in temperature.

Air duct damper.

The repairman removes voltage from the electric drives of the shut-off valves.

Fuses are removed from the electric drive control circuits.

Safety signs are hung.

Before starting work, the repair area is fenced off.

Removal of overhanging bricks, slag, ash and focal residues on the elements of boiler units.

Equipment for workers working in furnaces where fuel oil is used.

General lighting fixtures in boiler furnaces with lamp protection from mechanical damage.

Use of a floodlight in poor lighting, which must be installed outside the boiler furnace.

Portable electric lamps for work inside boiler unit elements, flues and air ducts.

Battery and rechargeable lanterns.

Electric wires located less than 5 meters from metal scaffolding must be de-energized and grounded, or enclosed in boxes, or dismantled during the installation or dismantling of the scaffolding.

Elements of metal scaffolding are stored in the repair work area.

Conditions for the use of scaffolding and platforms.

The decking on them must be attached to the crossbars, have fences, and side boards along the edge of the decking.

Stairs for climbing the scaffolding must be fenced with railings.

Limitations on the load on the scaffolding.

The commission accepts the finished scaffolding.

Scaffold acceptance certificate.

The responsible manager, together with the foreman, accept the implementation of the necessary measures to prepare for the repair work.

Before starting work, the repair personnel are familiarized with the evacuation plan in case of an emergency.

Certificates for knowledge of safety regulations are checked.

Checking the air quality in the boiler room, gas ducts and air ducts before carrying out work.

When carrying out work in the firebox, at least 2 people must be in it.

Requirements for the conditions for climbing into the boiler firebox.

Personal protective equipment for a welder and his assistant.

Devices for extinguishing fire at the welder's workplace.

A cartoon explaining how to extinguish a welder's burning clothes.

Before carrying out welding work at height, the work manager checks the scaffolding for strength.

The work supervisor must be at the work site at all times.

The welder prepares to carry out welding work inside the tank.

A supervisor must be present with the welder working in tanks or drums, positioned so as to constantly see and hear the welder.

The supervisor turns off the switch to quickly break the circuit.

The workers pull out the injured welder.

A doctor arrives at the site.

The workers provide first aid to the victim.

It is prohibited to carry out welding work from extension ladders and stepladders.

Before carrying out work, the strength of the lining of the bottom of the gas ducts and air ducts is checked.

Temporary flooring is installed on weakened or damaged areas.

In places where the boxes transition from a horizontal to a vertical position, the dividing line must be protected by a blank shield.

The foreman is obliged to personally make sure that no worker remains in the furnace.

Repair workers, when starting up a nearby boiler and performing other operations on it, are obliged to move to the other side of the boiler being repaired. V.P. Rogov, chief engineer of Saransk TPP-2, tells us.