AUTOMATIC CONTROL SYSTEM AND METHOD FOR REGULATING THE RETURN TEMPERATURE OF THE DISTRICT HEATING NETWORK

The invention relates to automatic control system and method of flow control among district heating networks. The invented system controls return temperature of district heating network. The system contains pressure difference controller (26), which is connected to supply (2) and return (6) pipes, i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TALCIS, Normunds, DZELZĪTIS, Egīls
Format:	Patent
Sprache:	eng ; lav
Schlagworte:	BLASTING 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 RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to automatic control system and method of flow control among district heating networks. The invented system controls return temperature of district heating network. The system contains pressure difference controller (26), which is connected to supply (2) and return (6) pipes, in addition connected to a programmable controller (17) and a network pump (9). The method has to be realised as follows: local thermostatic valve set (12h) for local heating provides a signal to the programmable controller (17) which afterwards receives temperature difference change between supply (2) and return (6) pipes and sends a command to network pump (9), controlled under the proportional pressure method, thereby improving energy efficiency performance of the system by matching heat energy generated by source (15) to dynamic end-user demand for heat energy.