Method for reducing boiler hearth abrasion through computer control

The invention relates to a method for reducing the boiler hearth abrasion through computer control. The method comprises the following steps that the negative pressure of an outlet of a hearth is kept unchanged, a primary fan is gradually increased until the maximum output of the fan, a DCS: central...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO GUOMING, WANG LINLIN, SHI ZHIXUE, GAO CHAO, WAN FAGUANG, PANG JINSHI, LI ZHIRU, YANG HONG, QU BO, DU FU, YANG ZHONGQUAN, GAO ZHANSHENG, WU ZHENJIAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES HEATING LIGHTING MECHANICAL ENGINEERING METHODS OF STEAM GENERATION REGULATING OR CONTROLLING COMBUSTION STEAM BOILERS STEAM GENERATION WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for reducing the boiler hearth abrasion through computer control. The method comprises the following steps that the negative pressure of an outlet of a hearth is kept unchanged, a primary fan is gradually increased until the maximum output of the fan, a DCS: centralized dispersion control system is used for automatically taking point and record the primary air volume F1 and the air chamber pressure value Pfslt, and an empty board resistance curve F1--Pfslt is drawn according to the data obtained by an experiment, and an empty plate resistance curve is simulated by means of the corresponding relation of the DCS system and the data. A circulating fluidized bedboiler is high in coal type adaptability, the service life and the utilization rate of the boiler are caused to be low, and the wear mechanism of the boiler has extremely intimate connection with the concentration of materials and the wind speed of the hearth; and according to the method, starting from a boiler control ang