1.6 These methods are sometimes used for accumulated deposition in rifled steam generator tubes. Experience has shown that there is a significant difference in the deposition in the grooves and on the lands on some rifled steam generator tubes.
2012-11-16 · Heat Exchanger Deposit Removal using clean external heat exchanger surfaces including delicate finned tube heat exchangers. it was a waste heat boiler that had significant deposits of iron pyrite. The deposits on the tube ID ranged from 0.20 in. thick to 0.32 in. thick. Similar deposits
2019-8-8 · Boiler feedwater is an essential part of boiler operations. The feed water is put into the steam drum from a feed pump. In the steam drum the feed water is then turned into steam from the heat. After the steam is used it is then dumped to the main condenser. From the condenser it is then pumped to the deaerated feed tank. From this tank it
A system for removing ash deposits within a boiler is provided. The system includes a soot blower disposed within the boiler, and a gas supply line in fluid communication with the soot blower and a gas source. The soot blower is operative to inject compressed gas from the gas source into the boiler to remove the ash deposits from a surface of the boiler.
2016-3-29 · removal of sample tubes for DWD analysis, and based on the DWD results may be chemically cleaned. Meanwhile, the boiler water chemistry must be strictly controlled, as a delay of one or two years on a fouled boiler can result in major tube damage. The type of boiler (recovery vs. power) and how it is used also affect the cleaning strategy.
2019-8-29 · Thus, as boiler water is heated, the solubility of scale-forming salts is exceeded and crystallization takes place on the boiler heating surfaces. Removal of deposits has advantages other than minimization of failures. Cleaning reveals the true boiler metal
2008-1-4 · Single Drum Recovery Boiler Courtesy of Metso Power Economizer Generating Bank Steam Drum Superheater Circulation in One-Drum Boiler Everything goes to and comes from the drum External downcomers take water to floor and lower wall headers External downcomers feed bottom generating bank header Crossover tubes take water from economizer
A boiler system includes a boiler having at least one heat exchanger having a surface on which a deposit may form. The boiler system further includes at least one retractable sootblower having a lance tube for carrying a high pressure fluid into the boiler. The lance tube is configured such that the high pressure fluid impacts the heat exchanger surface to effect a vibration thereof.
It evaporates and forms insoluble deposits on turbine blades. • The dissolved salts can be removed from water by treating them with different processes. – Internal Treatment. (Removed inside the boiler) – External Treatment. (Removed outside the boiler before supplying) 8.