1.Raw materials

● All materials for the burner need to comply with the design drawings as well as the requirements of the technical documents and the corresponding material standards.

● steel and steel plate should be straight, cutting surface should be deburred, splash and slag, exposed gas cutting should be repaired and smoothed.

2.Manufacture

● The surface of the weld shall not have cracks, weld tumors, burn-through, arc crater, surface porosity, slag, cracks and other defects.

defects.

● Welded seam shape needs to be uniform, weld channel and weld channel, weld channel and the base metal between the excessive smooth, weld slag and spatter clean.

Spatter should be removed cleanly.

3. Assembly

● The box shell and the outer surface of the duct around the weld should be tight, in the presence of pores or other allowable defects should be kerosene penetration test.

● burner single support bracket bearing more than 20t, the main bearing welds must be non-destructive inspection using magnetic particle or color flaw detection inspection.

● The surface of the machine must be clear of slag, spatter and burrs.

● weld surface of a single pore diameter of not more than 2mm, when there are a number of pores intensively, 25mm length of the weld within the number of pores (diameter of not more than 1mm) should be less than 5.

● Each turn (pendulum) moving device should be flexible, there shall not be any card, rubbing, touching and other abnormal phenomena

● When assembling the combustion gas, all the holes of the rotary axis are coated with high temperature resistant lubricant.

4. Performance Test

● The flame of combustion gas should be stable after ignition, and there should be no tempering phenomenon.

● Under the maximum load, the self-vibration speed should not be more than 6.3mm/s.

●Combustion controller: start, stop, reset, alarm and other functions, the control should be sensitive and reliable 4.4 Operation reliability test: no abnormality in each system after 48H continuous operation.

● Sealability of medium pipeline: reliable connection without loosening, 1.25 times the design pressure, holding pressure for 15min, pipeline pressure drop is not more than 50PA.

5 Paint and packaging

● Paint and packaging according to JB/T 1615 development

● Heat-resistant stainless steel nozzle does not need to be painted to maintain the metal color.