FIELD: heating.
SUBSTANCE: method includes the setting of value of optimal dissolved oxygen concentration (KO2)pv from the minimum capacities in the limits of possible product concentration in the corrosion KFe under the maintenance of the electroconductivity values χ and рН of working area vapor-water area section, at the same the optimal value of (KO2)pv is established to χpp/χoc≤ 1.5, (рН)pv-(рН)op≤0.2 и (KFe)pp≤10 mkg/dm3, where χpp - the value of vapor electroconductivity after intermediate superheater, χос - the value of electroconductivity of cleaned turbine condensate, (рН)pv - рН nutrient water, (рН)op - рН of the direct steam, (KFe)pp - the concentration of corrosion in vapor after intermediate superheater.
EFFECT: optimal concentration of dissolved oxygen in nutrient water of power unit with steam - boiler of overcritical pressure provides the minimization of corrosion in the power unit water-vapor.
2 cl, 2 ex
Authors
Dates
2008-05-10—Published
2006-08-14—Filed