Patent ID: 8230911
Filing Date: 2012-07-31
Classification: F24D,F28F,G05D,Y02B

Abstract:
1. A method for adjusting several parallel connected heat exchangers, which are supplied with a heat carrying medium, comprising the steps of: a. detecting for each heat exchanger a specific size of the heat demand of the heat exchanger, said specific size representing either 1) a ratio between opening times of a valve controlling the flow amount of a heat carrying medium through the heat exchanger and a predetermined period, or 2) a deviation of a desired value; b. comparing the specific sizes of all heat exchangers with each other; and c. changing the setting of the heat exchanger with the specific size displaying the smallest heat demand in a manner which increases the heat demand, the method further comprising the steps of determining a common return temperature for the heat exchangers before opening or closing one of the heat exchangers, determining the common return temperature after opening or closing said one of the heat exchangers, comparing the common return temperature before opening or closing said one of the heat exchangers with the common return temperature after opening or closing said one of the heat exchangers, and, when the common return temperature increases as a result of each opening of said one of the heat exchangers or decreases as a result of each closing of said one of the heat exchangers, changing the setting of said one of the heat exchangers so as to reduce a specific size of the heat demand of said one of the heat exchangers.