Acquisition method of combustion characteristic under different circumference air quantities after boiler improvement
A technology for combustion characteristics and boiler transformation, used in special data processing applications, instruments, electrical digital data processing, etc.
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[0046] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0047] In this embodiment, the following modified boilers are used as simulation calculation objects, and a method for obtaining combustion characteristics under different peripheral air volumes after the modification of the boiler is implemented.
[0048] The boiler is 660MW, subcritical pressure, once reheated, single steam drum, control cycle, four-corner injection combustion double tangential combustion coal-fired boiler, the boiler body is as follows figure 1 shown. The open-air layout is adopted, and the boiler is a product of ABB-CE company. The combustion pulverizing system is a medium-speed grinding direct blowing type, and a straight-line wide adjustment ratio swing burner is used. The cross section of the burner is as follows: figure 2 shown. Four DC swing burners are arranged at the four corners of the boiler in a tangential c...
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