Abstract: Abstract:A method of making up water for boiler during the boiler pipe sweeping period was introduced. In this process, the condensate pump, the lowpressure header and other devices are not needed to be put into operation, and only the condensate transfer pump or condensate make up pump shall be started to supply the water to scattered users and to make up water to deaerator. By the method, the water consumption of scattered condensate users was ensured, and the water make up requirement of the boiler during pipe sweeping period was satisfied. The auxiliary power was saved effectively, and the cost of boiler pipe sweeping was reduced.

Key words: Keywords:boiler, pipe sweeping using pressurized steam, condensate transfer pump, condensate pump, auxiliary power