Heat pump type alternating energy storing and power supplying method and device

Abstract

The invention provides a heat pump type alternating energy storing and power supplying method and device. The heat pump type alternating energy storing ad power supplying method comprises an energy storing and heat supplying mode and a power supplying and heat supplying mode. When the energy storing and heat supplying mode is used, a normal temperature working medium absorbs heat isobarically through a first heat storing system to be adiabatically compressed by a compressor, then releases heat isobarically through a second heat storing system, then enters a turbine for heat insulation and expansion to carry out external work, and finally is released to the outside as a heating supply. The device is sequentially connected in series with an air inlet device, a first heat exchanger, a first heat storing system, a compressor, a second heat exchanger, a second heat storing system, the turbine and an air outlet device in the moving direction of working air. According to the heat pump type alternating energy storing and power supplying method and the device, the problems of wind curtailment and light curtailment in photovoltaic power generation and wind power generation and the problem ofpeak cutting and valley filling in peak-valley electricity are solved; heat supply is achieved when energy storing and power supplying are carried out; and afterheat of waste air is recycled into another heat storing system, and heat-work conversion efficiency is improved.

Description

technical field [0001] The invention relates to a method and device for energy storage and power supply, in particular to a method and device for heat pump alternate energy storage and power supply. Background technique [0002] Green energy represented by solar energy, wind energy, and hydraulic potential energy has environmental protection and inexhaustible advantages. However, because green energy is generally affected by natural conditions such as weather, seasons, and sunlight, it is difficult to provide stable energy output, so it is difficult to output Electricity that matches the grid. Therefore, at this stage, the problems of abandoning wind, light and water in green energy are very serious. In order to allow green energy to output electricity that is evenly distributed in time, it is a better solution to adopt certain energy storage technologies and exchange space for time. On the other hand, the northwestern region of our country has strong sunshine and wind pow...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of low conversion efficiency of the traditional electric heating heat storage medium energy storage method, and at the same time solve the problems of wind and light abandonment in photovoltaic power generation and wind power generation, and provide a high-efficiency heat pump including heating function Alternative energy storage power supply method and device

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