Real-time calculation method and system for lowest stable combustion load of coal-fired unit

• Main Authors: YUE JUNFENG, JIA TAO, XIAO JIE, GENG CHAMIN, WANG YA'OU, GUAN SHIPIAN, XU YIRAN, HE PENGFEI, TAO QIAN, CAI LIANG, CHEN BO, YANG ZHEN
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a real-time calculation method and system for the lowest stable combustion load of a coal-fired unit. According to the method, the unit heat absorption capacity of adverse influence factors is calculated based on a reference working condition and a current working condition, imaginary coal quantity coefficients under different working conditions are calculated based on a preset imaginary coal quantity, the influence of the environment temperature is considered, and the real-time lowest stable combustion load capacity of the unit is directly obtained through calculation.Compared with a traditional test method, the method is simpler. 本发明公开了一种燃煤机组最低稳燃负荷实时计算方法及系统，本发明基于基准工况和当前工况，计算不利影响因素的单位吸热量，基于预设的假想煤量计算不同工况下假想煤量系数，考虑环境温度的影响，直接通过计算得到机组实时最低稳燃负荷能力，相较于传统的试验方法，更加简单。