Active solar heat-gathering and energy-storage system and method thereof

Abstract

The invention discloses an active solar heat-gathering and energy-storage system and a method thereof. The invention discloses a new active heat-gathering and energy-storage system and method on the basis of organic combination for a photovoltaic power generation technology and a heat pump cycle technology. The new active heat-gathering and energy-storage system and method aim at effectively transmitting and storing the heat energy formed by absorbing solar energy, so that the absorption and conversion efficiency for the solar energy is increased as a whole, and the energy efficiency ratio andthe market value of a photovoltaic product are further increased. The system mainly comprises the following devices which are mutually connected in sequence: a photovoltaic power generation device, aheat pump device and an energy accumulation device, wherein the photovoltaic power generation device absorbs visible light through a photovoltaic panel and convers the visible light to light electricity; the heat pump device is used for transferring the heat energy generated by the photovoltaic panel to the energy accumulation device through a refrigerant cycle pipeline; an evaporator assembly ofthe heat pump device is connected with the photovoltaic panel to form a heat-gathering device; and the energy accumulation device is used for absorbing and storing the heat unidirectionally conveyedfrom the heat pump device.

Description

technical field [0001] The invention is based on the organic combination of photovoltaic power generation and heat pump cycle technology, thereby realizing a brand-new active solar thermal energy storage system and its method, belonging to the field of photovoltaic photothermal technology. Background technique [0002] Existing solar photovoltaic power generation equipment has been widely used, and solar energy can be converted into photoelectricity through photovoltaic modules. However, in the field of solar photovoltaic power generation, the photovoltaic systems and control methods currently used have the following problems and defects: [0003] 1. The utilization efficiency of solar energy resources is low and the waste is serious. In the solar spectrum, only part of the photon energy of visible light can be converted into photoelectricity, and other photon energy, as well as infrared energy accounting for about 53%, are released in the form of ordinary heat energy, so t...

AI Technical Summary

Problems solved by technology

During the period from 2012 to 2017, the cost of my country's traditional solar photovoltaic industry chain has been reduced by nearly half, and the gross profit of each link in the photovoltaic industry chain has also been fundamentally differentiated. The energy efficiency ratio of photovoltaic products has been compressed smaller and smaller. It is difficult to have a substantial improvement

[0005] 3. In the actual use process, the existing photovoltaic panels are prone to frost and even freezing in the outdoor environment in winter. Under the premise that the heat in the air is reduced and the light energy is not enough to defrost and freeze, the efficiency of converting solar energy into photovoltaics is greatly improved. reduce

However, there is no effective means of defrosting and defrosting, and defrosting is usually done manually or by electric heating, which is time-consuming and labor-intensive, and wastes a lot of energy.

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