Boiler water hammer accident
1. boiler water hammer phenomenon
 
⑴ issued in the boiler and pipes at a certain rhythm of percussion sometimes huge sound, accompanied by strong vibrations of the water supply pipes or steam pipes.
 
(2) pressure gauge pointer swings back and forth, with the vibration of the sound frequency.
 
(3) water hammer severe, may lead to various connecting parts, such as flanges, weld cracking, valve damage.
 
2. the processing of the steam pipe water hammer
 
⑴ reduced steam supply, if necessary, turn off the main steam valve.
 
⑵ open the trap on the superheater header and steam pipes hydrophobic.
 
⑶ drum water level is too high, to proper sewage maintain normal water level.
 
⑷ to strengthen water treatment to ensure the quality of the feed water and boiler water, avoid Priming occurs.
 
⑸ water hammer elimination, check the condition of pipes and pipe racks, flanges, etc. If there is no damage to the warm tube steam supply.
 
3, the processing of the water supply pipeline water hammer
 
⑴ open the air valve on the water supply pipe to exclude air or steam.
 
⑵ enable alternate water supply pipeline to continue to feed water to the boiler. If there is no backup line fault pipeline should take the appropriate measures to deal with.
 
⑶ check to pumps and feedwater check valve, if timely maintenance.
 
⑷ maintain feedwater temperature equalization.