In daily routine testing of power plant boilers, the following detection needs exist: various types of boiler boilers, pipes inside and outside the furnace, the steam turbine shaft center hole, the steam turbine, the interior of other vessel chambers and other pipelines. Maintenance of boiler equipment, maintenance is to ensure the safety of boiler equipment, economic operation, improve the boiler equipment availability factor is an important part of every maintenance personnel must pay attention to maintenance work. The following describes the micro-industrial endoscope on the power plant boiler pipe testing process:
First, the water wall repair process
1 water wall cleaning: clean up the outer wall of tube fouling and coke slag;
2. near the burner near the water wall tube inspection, with industrial pipe endoscopy to detect internal corrosion;
3. Replacement and repair of wear and tear, swelling, deformation, damage of the pipe;
4. Elimination of defects in operation;
Second, superheater repair process;
1. Heating surface and horizontal flue cleaning;
2. Check wear and tear, overheating, swelling and swelling;
3. Check, repair, replacement pipe clip, comb board and anti-wear device;
4. Use industrial pipe endoscope to detect the weld inside the pipe and take pictures and videos;
Pipe cutting to check the internal conditions of the pipe;
6. replacement of individual defects exceeded the tube;
Third, the reheater inspection process;
1. Sweep pipe wall fouling;
2. Check the pipe wear, swelling, bending deformation;
3. Sweep or repair header support
4. Open the header hole, with industrial pipe endoscope corrosion and scaling conditions and the presence of foreign objects, according to the contents of the shooting and clean up the internal