Medium and low temperature heat energy heat supply system based on heating type absorption-compression type heat exchange

Abstract

The invention belongs to the technical field of heating and ventilation air conditioners, and particularly relates to a medium and low temperature heat energy heat supply system based on heating typeabsorption-compression type heat exchange. The system comprises a medium and low temperature heat source, a heat source station, a primary net, a heat station and a secondary net which are connected in sequence; the heat source station is a first water-water heat exchanger, and the heat station is a compression type heat exchange unit or a second water-water heat exchanger; and the medium and lowtemperature heat source is medium and low temperature industrial waste heat, or medium-and-deep geothermal heat, or medium and low temperature circulating water from a solar heat collector. Accordingto the medium and low temperature heat energy carrier characteristics, the heat exchanger is reasonably configured in the medium and low temperature heat source station, the compression type heat exchange unit is reasonably configured in the heat station according to the characteristics of the heat user so that the water return temperature of a primary heat network can be greatly reduced and the primary water supply temperature can be increased, and the industrial waste heat economic heat transfer distance is greatly improved; and high-efficiency utilization of the medium and low temperature heat energy is facilitated so that a heat supply heat source support is provided for surrounding towns, and the fossil energy consumption of the heat supply system and the discharge amount of pollutants are reduced.

Description

technical field [0001] The invention belongs to the technical field of heating, ventilating and air conditioning, and in particular relates to a medium and low temperature thermal energy heating system based on a temperature-rising absorption-compression heat exchange. Background technique [0002] Low-temperature industrial waste heat, deep geothermal heat and solar energy can be used as heating sources, which can greatly reduce the fossil energy consumption of central heating in northern cities and towns, and significantly reduce the emission of air pollutants. Currently. Due to the spatial inconsistency of heat source distribution and heat load distribution, especially the heat source and heat users with large spatial distribution distances, the medium and low temperature heat energy results in a relatively small temperature difference in heat energy transmission, resulting in high cost of long-distance transmission, and it is difficult to be centrally supplied by cities ...

AI Technical Summary

Problems solved by technology

At present, the central heating technology based on low-temperature industrial waste heat, deep geothermal heat and solar medium-low temperature thermal energy has the development bottleneck of low heat utilization efficiency and short economical heat transmission distance.

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