Optimized energy-saving system for hot water and energy-saving method for hot water production based on solar coupled heat sources

Abstract

The invention discloses an optimized energy-saving system which is capable of comprehensively utilizing cold and hot energy, utilizing valley electricity for energy storage, preventing waste and saving energy and applied to hot water as well as an energy-saving method for hot water production based on solar coupled heat sources. The energy-saving system comprises a solar heat collecting module (10), a valley electricity heat storage module (20), a heat recovery module (30) and a hot water storage module (40), wherein the solar heat collecting module (10) supplies a heat source of the hot waterstorage module (40) in the daytime; the valley electricity heat storage module (20) supplies the heat source of the hot water storage module (40) at night or when finished water temperature is not upto the standard; the heat recovery module (30) recovers condensation heat produced through refrigeration cycle of a working medium of an air conditioning system and/or waste heat of a cooling tower and supplies the heat source to the hot water storage module (40); the hot water storage module (40) receives the heat sources provided by the solar heat collecting module (10), the valley electricityheat storage module (20) and the heat recovery module (30) and provides hot water. According to the energy-saving method, waste heat energy of an air conditioner, waste heat energy of cooling equipment and air energy are taken as auxiliary heat sources, and stored heat is taken as a guarantee heat source. The energy-saving system and the method can be widely applied to the field of energy saving.

Description

technical field [0001] The invention relates to a hot water optimization energy-saving system; in addition, the invention also relates to an energy-saving method for heating hot water with a solar energy coupling heat source. Background technique [0002] At present, many civil and commercial occasions use a large amount of heat energy to produce hot water while using a large amount of cold energy. Cold energy is generally provided by air conditioning systems, and heat energy is basically provided by hot water boilers or steam boilers. Generally, these occasions are also provided with cooling towers, and the heat is directly discharged into the air, causing heat pollution and waste of heat energy. At present, more and more solar water heaters are appearing, but they are generally run alone, or used in conjunction with air source heat pumps or in conjunction with electric heating systems. There is a great demand for the comprehensive utilization of cold and heat energy and e...

AI Technical Summary

Problems solved by technology

Generally, these occasions are also equipped with cooling towers, and the heat is directly discharged into the air, causing heat pollution and waste of heat energy.

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