HOT/COOL WATER MIXING DEVICE

PURPOSE:To speed up the working timing of a flow rate controller and to reduce the overshoot of the hot/cool water mixing temperature by setting again the set temperature at a level different from the genuine set temperature when the hot water temperature has a sudden change. CONSTITUTION:A hot wate...

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Bibliographische Detailangaben
1. Verfasser:	OSHIO TADAHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CONTROLLING DOMESTIC HOT-WATER SUPPLY SYSTEMS DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS ELEMENTS OR COMPONENTS THEREFOR FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING PHYSICS RANGES REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To speed up the working timing of a flow rate controller and to reduce the overshoot of the hot/cool water mixing temperature by setting again the set temperature at a level different from the genuine set temperature when the hot water temperature has a sudden change. CONSTITUTION:A hot water supply machine controls a flow rate servo valve 5 while detecting the mixing temperature Tm by a temperature detector 9 and discharges the hot water of a set temperature through a hot/cool water mixing path 7. The valve 5 starts to open from its fully closed state when the hot water temperature Th exceeds a set temperature Tf at start of discharge of the hot water. Then the valve 5 is moved in the opening direction when the temperature Th has a sudden rise due to the change of a flow rate, etc., and the temperature Tm exceeds the upper limit temperature of a blind sector set at the upper side of the temperature Tf. On the contrary, the valve 5 is moved in the closing direction when the temperature Th has a sudden fall due to the change of the flow rate, etc., and the temperature Tm exceeds the lower limit temperature of a blind sector of the lower side of the temperature Tf respectively.