System and method for externally supplying high-parameter industrial steam under deep peak regulation working condition

• Main Authors: MIAO JINGQUAN, WANG GUANGLEI, YU JUNHONG, QI JINSHENG, ZHANG BIN, HU XUNDONG, REN XIANJUN, TIAN LIN, ZHANG SHUYING, SU HENG
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METHODS OF STEAM GENERATION; STEAM ACCUMULATORS; STEAM BOILERS; STEAM ENGINE PLANTS; STEAM ENGINES; STEAM GENERATION; WEAPONS

The invention provides a method and a system for externally supplying high-parameter industrial steam under a deep peak regulation working condition, when a power generation load is greater than or equal to a first set threshold value, a hot section normally supplies heat to the outside; when the power generation load is between the second set threshold value and the first set threshold value, the second pipeline serves as a high-pressure bypass to be opened, main steam is divided into two paths, one path enters a steam turbine to do work, and steam exhausted by a high-pressure cylinder enters a boiler reheater through a reheating cold section pipeline; the other path passes through a first temperature and pressure reducing valve and then enters a boiler reheater through a reheating cold section; air is extracted through the steam extraction hole, and reheated steam passes through the second temperature and pressure reducing valve and then supplies heat to the outside; when the power generation load is smalle