Charging-accumulating solar hot air heater

Abstract

The invention discloses a charging-accumulating solar hot air heater comprising a heat insulated box, a first fan, a second fan, a phase change heat accumulator, a mixed air box and a tuyere shell; the heat insulated box is internally provided with a cavity, and one end of the cavity is provided with a first air intake duct; the other end of the cavity is provided with a hot air duct; the first fan is installed at the inlet end of the first air intake duct; the hot air duct communicates with the mixed air box; the bottom of the mixed air box communicates with a second air intake duct, and theinlet position of the second air intake duct is provided with the second fan; the upper end of the mixed air box is connected with the tuyere shell; the phase change heat accumulator is arranged in the cavity of the heat insulated box, and one side of the heat insulated box is provided with a heat-accumulating air inlet; the other side of the heat insulated box is provided with a heat-accumulatingair outlet; and the heat-accumulating air inlet and the heat-accumulating air outlet communicate with a charging-accumulating air outlet and a charging-accumulating air inlet of a solar air collector. According to the charging-accumulating solar hot air heater, double air ducts are used for heat supply; cold air and hot air flowing out from the double air ducts are mixed in the mixed air box during heating separately; and the hot air stabilization of the air outlets is achieved.

Description

technical field [0001] The invention belongs to the technical field of solar energy utilization, in particular to a charge-storage solar hot air heater. Background technique [0002] Most areas in western China have strong solar radiation and low winter temperatures, so buildings need to be heated; in most rural areas, central heating is unrealistic, so decentralized heating has become the main way of building heating. Develop and utilize solar energy in the heating process of these buildings, adjust the energy structure of buildings, greatly reduce the use of fossil energy, achieve clean heating, and achieve the purpose of energy saving and emission reduction. [0003] In recent years, the popularization and use of solar passive utilization technologies that benefit directly from windows, thermal storage walls, additional sunlight rooms and their combinations have greatly promoted the development of passive buildings and solved a series of building heating problems. A seri...

AI Technical Summary

Problems solved by technology

At present, there are still many problems in solar hot air heaters, such as uneven heat storage, low temperature of heat storage plates, serious heat dissipation, insufficient heat storage, uncontrollable air temperature, etc., which seriously affect the popularization and use of solar hot air heaters.

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