Photovoltaic phase-change energy-gathering electric heater

Abstract

The invention provides a photovoltaic phase-change energy-gathering electric heater, which comprises a radiator and a radiator base; the radiator is detachably connected to the radiator base; a phase-change material is arranged in the radiator; the radiator comprises a radiator upper transverse pipe, a radiator lower transverse pipe and a plurality of radiator vertical pipes; an electric heating element is arranged in each radiator vertical pipe; the radiator vertical pipes are arranged between the radiator upper transverse pipe and the radiator lower transverse pipe; the upper ends and the lower ends of the radiator vertical pipes are communicated with the radiator upper transverse pipe and the radiator lower transverse pipe respectively; and a liquid injection opening is arranged at the left end of the radiator upper transverse pipe, the liquid injection opening is used for injecting the phase-change material and provided with a liquid injection opening screwed plug. According to the photovoltaic phase-change energy-gathering electric heater provided by the invention, the photovoltaic and phase-change technology is adopted, solar energy and two-phase and three-phase mains supply are used for composite power supply, a user can conveniently use the photovoltaic phase-change energy-gathering electric heater under the three-phase power supply condition, energy is saved, the environment is protected, and the heating cost is reduced.

Description

technical field [0001] The invention relates to the technical field of indoor electric heating, in particular to a photovoltaic phase change energy concentrating electric heater. Background technique [0002] Regenerative electric heaters are generally divided into two types from the heat storage material, one is solid heat storage type, that is, the heat storage body is a solid material, and no phase change occurs during the application process. This kind of electric heater is used for heat storage type As a heat storage body, bricks are inserted into electric heating tubes for heating, and external insulation and shells are installed. The disadvantages are unstable thermal properties, limited heat storage capacity, insufficient heating heat, and uncontrollable heat transfer process. Therefore, it is not a mature heating technology. It is only an experimental product of some manufacturers; the other is the phase change energy storage type. The phase change material has high...

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Problems solved by technology

[0002] Regenerative electric heaters are generally divided into two types from the heat storage material, one is solid heat storage type, that is, the heat storage body is a solid material, and no phase change occurs during the application process. This kind of electric heater is used for heat storage type As a heat storage body, bricks are inserted into electric heating tubes for heating, and external insulation and shells are installed. The disadvantages are unstable thermal properties, limited heat storage capacity, insufficient heating heat, and uncontrollable heat transfer process. Therefore, it is not a mature heating technology. It is only an experimental product of some manufacturers; the other is the phase change energy storage type. The phase change material has high energy density, constant temperature phase change, and considerable latent heat. Under a certain thermal capacity, it has the smallest volume, the lightest weight, and the least space occupied. , can work under the structure of low temperature equipment, which reduces the temperature resistance requirements of the equipment used for materials, etc., but the related technologies of phase change materials are relatively complicated, and they are mostly used in the aerospace field or the cold protection field of buildings, and are rarely used in electric heaters.

[0003] From the perspective of heating and power supply, whether it is a solid thermal storage electric heater, a phase change thermal storage device or a hot water thermal storage device, it is a single power supply, and the grid power is used, that is, the city power, and the photoelectric composite heating is rarely used, resulting in heating. Excessive cost and serious energy consumption

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