Soft measurement method and optimal control method of sulfur dioxide in circulating fluidized bed boiler smoke
A circulating fluidized bed, sulfur dioxide technology, applied in the direction of self-adaptive control, general control system, control/regulation system, etc., can solve the problems of sulfur dioxide concentration hysteresis, inability to adjust the control effect, etc.
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Embodiment 1
[0127] Embodiment 1: a kind of soft measurement method of sulfur dioxide in flue gas of circulating fluidized bed boiler, comprises the following steps:
[0128] S1, collect the operating data of the actual industrial device, and construct the soft sensor model of the active limestone in the furnace:
[0129] dM C dt = W ca * η W c F 1 ( t ) - K F 0 M C
[0130] Among them, W ca is the molar mass of calcium oxide, kg / kmol; W c is the molar mass of limestone, kg / kmol; Mc is the amount of active limestone in the furnace, kg; F1 is the limestone feed, kg / s; η is the pure CaCO contained in the limestone f...
Embodiment 2
[0161] Embodiment 2: a kind of soft measurement method of sulfur dioxide in flue gas of circulating fluidized bed boiler, comprises the following steps:
[0162] S1, collect the operating data of the actual industrial device, and construct the soft sensor model of the active limestone in the furnace:
[0163] dM C dt = W ca * η W c F 1 ( t ) - K F 0 M C
[0164] Among them, W ca is the molar mass of calcium oxide, kg / kmol; W c is the molar mass of limestone, kg / kmol; Mc is the amount of active limestone in the furnace, kg; F1 is the limestone feed, kg / s; η is the pure CaCO contained in the limestone f...
Embodiment 3
[0170] Embodiment 3: a kind of soft measurement method of sulfur dioxide in flue gas of circulating fluidized bed boiler, comprises the following steps:
[0171] S1, collect the operating data of the actual industrial device, and construct the soft sensor model of the active limestone in the furnace:
[0172] dM C dt = W ca * η W c F 1 ( t ) - K F 0 M C
[0173] Among them, W ca is the molar mass of calcium oxide, kg / kmol; W c is the molar mass of limestone, kg / kmol; Mc is the amount of active limestone in the furnace, kg; F1 is the limestone feed, kg / s; η is the pure CaCO contained in the limestone f...
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