A solar-assisted ventilation concentrator for building ventilation shafts

Abstract

The invention provides a solar auxiliary ventilation condenser for a building ventilation shaft. By means of the solar auxiliary ventilation condenser, hot water, steam and other extra heat medium resources are not required, by utilizing fluorescence reflection, solar energy is converted into infrared rays to heat air in the condenser, the difference between the temperature in the condenser and the temperature outside the condenser is increased, so that the purpose of increasing the heat pressure in the building ventilation shaft and the heat pressure outside the building ventilation shaft is achieved; in this way, flowing of the air flow in a building and flowing of the air flow outside the building are promoted, and the ventilation effect of the building ventilation shaft is strengthened. Furthermore, the solar auxiliary ventilation condenser does not have any limit on the angle of incident light of the sun, and ray tracing does not need performing. Moreover, the solar auxiliary ventilation condenser is convenient to use, capable of effectively collecting scattered radiation of the sun and high in light-gathering efficiency and does not have a limit on the structure of the building ventilation shaft. The appearance of the solar auxiliary ventilation condenser can be designed according to the architectural style, an extending plate can further be additionally arranged on an outer metal framework, and roof greening can be achieved. Besides, according to the solar auxiliary ventilation condenser, the defects that in the prior art, the ventilation effect of a building ventilation shaft is weak, and the building ventilation shaft has the phenomenon of air backflow in adverse weather can be effectively overcome, and therefore the solar auxiliary ventilation condenser is broad in application prospects.

Description

technical field [0001] The invention relates to the technical field of indoor ventilation and air conditioning, in particular to a solar-assisted ventilation concentrator used in building ventilation shafts. Background technique [0002] In special buildings such as large-scale building inner areas, rural residences or factories, under natural ventilation, due to poor ventilation conditions, heat dissipation from internal personnel and equipment accumulates, resulting in excessively high indoor temperatures, or lower outdoor temperatures than indoors in transitional seasons. Ventilation shafts can be set on the top of the building, and hot air can be used to remove indoor hot air from the ventilation shafts, thereby promoting outdoor cold air to enter the room and form ventilation, which can not only improve the indoor heat and humidity environment, but also improve indoor air quality. However, the existing building ventilation shafts only rely on the indoor and outdoor heat...

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Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a solar energy-assisted ventilation concentrator for building ventilation shafts, which increases the temperature difference between the inside and outside of the concentrator by collecting and absorbing solar energy, thereby increasing the ventilation of the building. The purpose of thermal pressure inside and outside the well, so as to promote the indoor and outdoor air flow of the building, increase the ventilation of the building ventilation well, to solve the defects of the existing technology such as the weak ventilation effect of the building ventilation well, and the phenomenon of airflow backflow in the ventilation well under unfavorable weather conditions.

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