What are the key parts of boiler anti-wear and explosion-proof work inspection?

       The explosion-proof places to be checked for anti-wear of boilers mainly include the following points:

1. Water wall

The water wall needs to be inspected: ash hopper, corner burner, flame corner area, upper and lower header fillet welds, suspension pipes, soot blower area.

2. Savers

Where the economizer needs to be checked: Check the pipes and elbows close to the furnace wall, the clamped position of the pipes, the pipes extending out of the pipe row, the pipes near the flue gas corridor due to uneven pitch, and the pipes that are loose and fall off due to wear and tear of the anti-friction iron , The pipe at the anti-wear iron interface, the pipe blocked by foreign matter, the outer ring pipe, the part where the pipe is changed frequently, the top 1-3 rows of pipes and the bottom 1-2 rows of pipes.

3. Transfer and Reheater

Re-inspection positions of superheaters and reheaters: the position where the expansion of the pipe row is hindered; the surface of the pipe is easy to coke and oxidize; the pipe is scorched and deformed; the friction and mutual vibration parts between the clamping pipe and the pipe row; bending down to the fire; During operation, pipe expansion and creep are measured at locations where overtemperature is recorded and at the focus of high-load areas.