FIELD: heating.
SUBSTANCE: invention refers to central heating and can be applied in construction, maintenance and technical operation of heat supply systems. Multipurpose heat supply system features sealed expansion tank with ventilation and through flow; heat exchange unit is installed in drain section before expansion tank, direct inlet is connected by shutoff double-bypass pipeline to pressure section, and reverse inlet is additionally connected to the drain section by shutoff bypass channel; shutoff suction pipe is connected to: expansion tank, internal flow space of which serves as hydraulic extension of the drain section, bypass pipeline between both of pipeline shutoff points, bypass channel between its shutoff point and the drain section, tapped with one end between shutoff point of suction pipe and pump and the other end connected to the drain section between drain section shutoff point and tank; pressure pipe is connected to: pressure section, drain section, bypass channel between channel shutoff point and reverse inlet; make-up medium suction is connected additionally by shutoff branch of make-up line to vessel containing reagent solutions used for maintenance of heat supply system.
EFFECT: extended functional capabilities of heat supply station.
1 dwg
