Pickling is the main method to remove the oxide scale and rust corrosion in the boiler. Through the use of acidic solution, these corrosive impurities (scale) can be effectively removed, so that the boiler can achieve a longer and more stable service life.Fang fast boiler summed up 8 pickling matters needing attention, to help your boiler to better clean up the work.
1, before pickling to confirm the nature of scale, thickness and range.
2. The pickling work must be carried out under the guidance of experienced boiler technicians, and the pickling scheme has been repeatedly demonstrated, and a practical and reliable pickling scheme has been developed.
3. No matter what kind of corrosion inhibitor is used, it will inevitably have a certain corrosion effect on the boiler.Therefore, pickling should not be used for many times.
4. If there are cracks or other leakage defects in the cylinder pressure components, these defects must be removed before pickling, and then pickling, otherwise leakage and other adverse accidents will occur.
5, pickling, the operator should wear good protective equipment (anti-acid gloves, anti-acid clothes, anti-acid masks, anti-acid glasses, etc.), open doors and Windows, strengthen air circulation, to prevent these acid substances harm to the body.It is strictly prohibited to weld, smoke or use open fire in the workplace to prevent personal injury and other economic losses caused by hydrogen explosion.
6, before pickling, the boiler water supply pump, steam outlet and sewage pipe should be fully isolated with a blind plate, open the vent valve, so that the gas produced during pickling can be smoothly discharged.
7. The temperature of pickling should be controlled at 5℃.
8, for the problems found in the pickling process and test data, must be carefully recorded.For the operators who have no experience in pickling technology, they must carry out the necessary technical training in advance and pass the examination before they can operate independently.