| 摘要 |
<p>The inventive centralised heat supply system comprises a boiler (1), in the gas flue of which a steam heater (2) connected to networking preheaters (12, 13) is accommodated, a circuit of supplied and return heating water, a heating system circuit having three heat transfer stages (14, 15, 16) and a heat pumping unit (17) which is connected to the last heat transfer stage (16) of the heating system circuit and to the circuit of return cooled heating water, which circuit is provided with a well (18) for storing the excess cooled heating water in the ground. A network economizer (6) for heating the cooled heating water is placed in the gas flue of the boiler (1). The circuit of the supplied heating water is provided with a heat-insulated reservoir (19) for storing the heat delivery water during the non-heating period. The invention makes it possible to raise the degree of fuel energy utilization for heating a heat carrier by means of comprehensive technology for the use of exhaust gas heat, to increase the level of heat transfer to a consumer, to accumulate and store a low-temperature heat carrier, to accumulate and store a high-temperature heat carrier during the non-heating period and to eliminate the seasonal repeatability of the use thereof.</p> |
