Composite solar photovoltaic hot-water cold supply and heating system for building

Abstract

The invention discloses a composite solar photovoltaic hot-water cold supply and heating system for a building, which mainly comprises a solar photovoltaic hot water sunshade plate, a semiconductor refrigerating assembly, a separate heat pipe with a short pipe bundle, an integral gravity heat pipe, a heat exchange header and the like. The system is characterized in that the solar photovoltaic hot water sunshade plate and the semiconductor refrigerating assembly form a loop to realize indoor refrigeration and heat supply in summer and in winter by using solar power generation respectively; and the separate heat pipe, the integral gravity heat pipe, the heat exchange header, a coil pipe, a water tank and the like form a hot water system to generate hot water when cooling and heating of the semiconductor refrigerating assembly are realized in summer and in winter respectively. The system solves the problem that heating and hot water generation cannot be realized at the same time in the combined application of the traditional solar photovoltaic power generation and semiconductor refrigerating assemblies; and the introduction of the separate heat pipe and the gravity heat pipe improves the refrigerating and heating efficiency and enlarges the application range.

Description

technical field [0001] The invention relates to a building composite solar photovoltaic hot water cooling and heating system, which belongs to the field of solar energy utilization and air conditioning and ventilation. Background technique [0002] Solar energy is a clean, efficient and inexhaustible new energy source, so the governments of all countries regard the utilization of solar energy resources as an important content of the national sustainable development strategy. my country's solar thermal heating technology has been applied to a certain extent, but there has been no good development in solar cooling. At present, the main technologies of solar energy in building air-conditioning and refrigeration include solar absorption refrigeration, solar adsorption refrigeration, solar jet refrigeration, solar solution dehumidification refrigeration, solar power generation driven compressor refrigeration, and solar semiconductor refrigeration. These methods are all inefficien...

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Problems solved by technology

[0004] The technology of the present invention solves the problem: aiming at the low efficiency of the semiconductor refrigerating sheet, the insufficient utilization of solar energy, and the problems of cooling and insulation in practical applications, from the perspective of multi-functional energy utilization, high-efficiency utilization and system control optimization, a kind of Building composite solar photovoltaic hot water cooling and heating system, the system has both cooling and heating functions, rapid heat transfer, high cooling and heating efficiency; using integral heat pipes to dissipate heat from solar photovoltaic cells to improve the power generation efficiency of solar photovoltaic cells, Full use of solar energy

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