Running method of multi-energy complementary cold supply and heat supply unit

Abstract

The invention discloses a running method of a multi-energy complementary cold supply and heat supply unit. According to the running method, a solar water heating system, an electric heat storage boiler and a lithium bromide absorption type refrigerating unit are involved; the solar water heating system and the electric heat storage boiler are used for heating in winter, meanwhile, the solar waterheating system and the electric heat storage boiler are in linkage with the double-pole lithium bromide absorption type refrigerating unit in summer, the lithium bromide refrigerating unit is used forrefrigerating, then the problem of refrigerating in summer is solved, the use time of the solar energy is fully prolonged, and meanwhile, the initial investment is saved; and through the use of the solar water heating system and the electric heat storage boiler, the clean energy, namely, the solar energy is effectively utilized, meanwhile, the functions of peak shaving and valley filling is achieved for the electric load of a power grid, the running cost can be saved by utilizing the peak and valley electricity price, moreover, the system is stable and reliable, the water supply amount of thesystem is not influenced by outdoor weather conditions, and the system can be kept to be operated stably and efficiently in the whole year.

Description

technical field [0001] The invention relates to a cooling and heating system, in particular to a multi-energy complementary cooling and heating system of solar energy, an electric heat storage boiler and a lithium bromide refrigeration unit. Background technique [0002] In the situation of the depletion of conventional energy, human beings have paid more and more attention to the use of solar energy. The solar water heating system is one of the earliest and most efficient solar energy systems. It can be used in the hot water supply system to gain considerable energy saving benefits. The electric heat storage hot water system means that all or part of the hot water required by the building during the day is prepared by heating with an electric boiler at night (during the low power period), and stored for use during the day. The system not only plays the role of "shaving peaks and filling valleys" for the electricity load of the grid, but also saves operating costs by using ...

AI Technical Summary

Problems solved by technology

The solar-assisted heating electric thermal storage system uses green and environmentally friendly solar energy for heating, and at the same time makes good use of the peak-valley electricity price difference to reduce operating costs and ensure the stable operation of the system. However, the solar-assisted heating electric thermal storage system can only be used for heating in winter

The solar lithium bromide absorption refrigeration system uses solar lithium bromide absorption refrigeration technology, which has high solar refrigeration efficiency, but the solar lithium bromide absorption refrigeration system is greatly limited by weather conditions

Existing methods have not been able to effectively solve this problem

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