Study On Optimized Sootblowing System By Economic Diagnose Of Unit

In recent years, when the competition of the power enterprises are aggravated day by day, each of power plants' administrators is paid attention to more and more economically, and it works on which has launched saving energy and reduce the loss in. The question of ash deposition received administrator's attention. It is a kind of comparatively effective means that blows with sootblowing equipment.This paper has reviewed the domestic and international developments of optimizing system of power plants and the state of using of the sootblowing machine at first. Then introduces the situation of economic of thermodynamic system, such as theoretical foundation of thermo-economic, and applied objects. Finally introduces the necessity of the units, emphasize that should pay attention to sootblowing.As according to units, it is unavoidable that will produce ash and soot on the heat exchange surfaces, reduce effect of heat transferred, make temperature of exhaust smoke rise and make their endanger and transmit backward by. Tradition blowing ways according to settling procedure go on and blow soot at regular time and quantity, lead to the fact and blow soot or complete blowing soot frequently. Whether at present tradition blowing in this paper ways have some drawbacks set out, proposes that a kind of method of optimized sootblowing. Regard domestic 300 MW units as the object, determine that the units of the datum value of the main parameter. If it deviates from datum value and carries on real-time economic diagnosis in operation calculate that the parameter changes the impact on rate of coal consumption of units and losses. Utilize economic to suggest and blow soot to depend on and monitor boiler run parameters mainly in real time online, benefit from fall temperature of exhaust smoke are as follows through equivalent enthalpy different, compared expenses from heating surface maintain expense, carry on irregular methods to blow. With economic to analyse and determine when to blow, overcome traditional sootblowing intrinsic disadvantages, it can improve boiler efficiency further , economize the coal consumption.