Profile presumption manner of heat medium body temperature distribution and profile presumption device null of heat medium body temperature

摘要

PURPOSE:To understand an exact heat reserved state of a heat storage tank even if the number of heat medium temperature detectors by estimating the past heating medium temperature of one time point of a spot of this side by one against the flow direction of the heat medium, to be the present heat medium temperature of the present spot. CONSTITUTION:By primary and secondary chilled water flow meters 6, 7, a primary chilled water flow rate and a load flow rate are measured, and from its difference, an in-tank flow rate is calculated. Subsequently, a cumulative value of the in-tank flow rate is calculated, and a time point of an absolute value of this cumulative value goes to capacity per one tank is monitored. Next, whether the cumulative value at this time point is positive or negative is discriminated. When said value is positive, the primary chilled water flow rate is more than the load flow rate, therefore, as for the temperature of a water flow of each virtual water tank of the present time point, a temperature of a water tank of this side by one is regarded as its temperature. When said value is negative, the foregoing is reversed. However, in case of water tanks #1...50 in which a low temperature side terminal tank heat medium temperature detector 8, a high temperature side terminal tank heat medium temperature detector 9 and an intermediate heat medium temperature detector 10 are installed, a temperature which is measured at the present time point is set as a water flow temperature.