DEVICE FOR CONTROL OF AIR TEMPERATURE IN ROOM Russian patent published in 2011 - IPC F24D3/02 

FIELD: power engineering.

SUBSTANCE: device for control of air temperature in room heated from system of open heat supply consists of circuits of common circulation and re-circulation with direct and reverse mains. Each circuit is equipped with a circulation pump with a drive and rotation velocity governor correspondingly connected with output of a pressure regulator at the pump of circuit of re-circulation and with output of the air temperature regulator at the pump of common circulation. Also, the device additionally has a temperature sensor of reverse heat carrier at output from heat system. A heat metre is installed at output of the circulation pump of the direct main of the general circulation circuit, while a metre of heat carrier flow rate is installed at output of the circulation pump of the re-circulation circuit. A filter including a net of bimetal and an impurities collector is positioned at input of the circulation pump of the re-circulation circuit. In the bimetal net material on side of the re-circulation pipeline has heat conduction coefficient 2.0-2.5 times exceeding heat conduction coefficient of material on side of input to the circulation pump of the circuit of re-circulation.

EFFECT: maintaining regulated temperature mode at long term operation due to elimination of impurities of metre of heat carrier flow rate by installation of filter with metre of bimetal at input of circulation pump.

1 dwg