HEAT SUPPLY SYSTEM AND METHOD FOR ORGANIZING ITS OPERATION Russian patent published in 2024 - IPC F24D3/02 

FIELD: heat supply systems.

SUBSTANCE: heat supply system includes a consumer in the form of heating devices and two DHW heat exchangers, a supply pipeline through which the hot coolant from the heating network is supplied to the consumer, a return pipeline through which the cooled coolant returns to the heating network, two single-section diaphragm pumps, which are the left and right sections, each section is divided by diaphragms on the pumping and working chambers, the diaphragms are interconnected by a rigid rod, the inputs of the heating devices are connected in parallel to the working ones, as well as to the pumping chambers of the right or left sections of the diaphragm pump through the pressure check valves of the right or left sections, hot water supply heat exchangers, connected in series via a heated water and being heat exchangers of the first and second heating stages, the working chambers are equipped with inlet and outlet valves, which are connected mechanically to the membranes through switching devices of the inlet and outlet valves, each section of the membrane pump is connected to both heating devices, due to the fact that the outlets of the heating devices, suction check valves and a check valve are connected through the first stage of the hot water supply heat exchanger, while a heated water flow regulator is installed at the inlet of the hot water supply heat exchanger of the second stage, and a weather control regulator is installed at the inlet of the supply pipeline, connected to a control heat exchanger installed on the bypass of the return pipeline in parallel to valve. The method for organizing the operation of the heat supply system consists in taking hot coolant from the heating network through the supply pipeline, periodically distributing the hot coolant into two dependent circuits using a system of inlet and outlet valves with switching devices and mechanical drive from diaphragms, creating periodic pulsations of hot and cooled in the first stage of hot water supply coolant mixed after the first and second passage through the heating devices by two sections of a diaphragm pump connected by a rod by using the pressure difference between the hot and cooled coolants, also generates a hydraulic shock, the energy of which is used to accelerate the filling of the working chambers and give the initial impulse to the diaphragms, preheating of heated water in the hot water supply heat exchanger of the first stage by coolant passing through it mixed after the first and second passes through the heating devices, transferring the heat of the hot and cooled coolant to the surrounding air and water heated in the hot water supply heat exchangers, returning the cooled coolant to the heating network through the return pipeline, while the final heating of the heated water in the second stage of the hot water supply heat exchanger is ensured by regulating the flow of hot coolant with a regulator supplied independently of the two-section diaphragm pump, and the pulsation frequency of the latter is set by the pressure difference between the supply and return pipelines and is adjusted depending on the outside air temperature.

EFFECT: increasing the operating efficiency of consumers (heating devices and DHW heat exchangers) of the heat supply system due to a deeper use of the coolant potential (temperature and pressure) at the pulsation frequency of a two-section diaphragm pump, automatically adjusted depending on the available pressure determined by the outside air temperature.

3 cl, 1 dwg