Convection-radiation combined solar hot air floor heating system and operation method

Abstract

The invention discloses a convection-radiation combined solar hot air floor heating system and an operation method. The convection-radiation combined solar hot air floor heating system comprises a solar heat collection system, a heat storage floor heating system, a direct air supply heating system and a control system. The solar heat collection system comprises a solar hot air heat collector; the heat storage floor heating system comprises an air coil pipe arranged on a heat storage floor; the direct air supply system comprises an electric heater and an air supply outlet; high-temperature hot air of the solar hot air heat collector enters an air coil of a bedroom through a main air supply pipeline for heat exchange, and medium-temperature hot air obtained after heat exchange is fed into the direct air supply system and enters a living room through the air supply outlet; and living room return air enters a return air pipeline through a return air inlet and is supplied to the solar hot air heat collector. The control system is used for comprehensively adjusting the temperature of each part in the system and adopts an automatic control mode or a manual control mode; and the problems that a traditional solar hot air system is low in efficiency and the direct air supply system is large in air supply temperature fluctuation are solved.

Description

technical field [0001] The invention relates to the technical field of solar thermal utilization and time-sharing and district heating, in particular to a convection-radiation combined solar hot air floor heating system and an operating method. Background technique [0002] In recent years, solar hot air systems have gradually become the focus of attention due to their advantages such as resistance to freezing and high temperatures, strong system stability, and low maintenance costs. The traditional solar hot air system collects solar energy to heat the air, and the high-temperature hot air passes through the air-water heat exchanger to heat the circulating water in the heat storage tank to meet the indoor heat demand. Limited by the efficiency of the air-water heat exchanger, the efficiency of the solar hot air system is low, which limits the popularization and application of the solar hot air system. The direct supply of solar hot air is an effective means to improve the e...

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Problems solved by technology

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a convection-radiation combined solar hot air floor heating system and its operation method to solve the problems of low efficiency of the traditional solar hot air system and large fluctuations in the air supply temperature of the direct air supply system. question

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