Air quality-inducing intelligent constant temperature ecological curtain wall system and temperature control method

Abstract

The invention relates to an air quality-inducing intelligent constant temperature ecological curtain wall system and a temperature control method, belongs to the field of curtain walls and solves the problem that an air conditioning system is high in energy consumption. The system is combined with a constant temperature curtain wall by virtue of a computer system, so that the system has multiple working modes; the working modes are intelligently selected and switched according to the indoor and outdoor temperatures, the temperature of a hollow interlayer and an outdoor air quality, and intelligent temperature control is realized, so that the energy consumption of the air conditioning system in heating and refrigerating processes is reduced, and the system has a good energy-saving effect and an ability of coping with environmental changes.

Description

technical field [0001] The invention relates to the field of curtain walls, in particular to an air quality sensing intelligent constant temperature ecological curtain wall system and a temperature control method. Background technique [0002] The curtain wall is the "outerwear" of the building. Most modern buildings are decorated with curtain walls. Among them, large shopping malls, office buildings and other buildings have high requirements for the comfort of their internal environment. Generally, they are equipped with air conditioning systems for cooling or heating to keep the interior Constant temperature, but this also brings a huge problem of air conditioning energy consumption. As the intermediate of indoor and outdoor heat exchange, the curtain wall plays an important role in maintaining the constant temperature environment in the building. [0003] Following the above trend, the constant temperature curtain wall has gradually entered people's field of vision. Figu...

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Problems solved by technology

[0004] However, the constant temperature and energy saving performance of this constant temperature curtain wall is not significant, mainly due to its passivity. Even if the above-mentioned air inlets and exhaust outlets of the constant temperature curtain wall are opened for ventilation, according to the chimney effect, although the airflow circulating in the middle compartment can take away part of the heat, the airflow is still a hot air flow with a relatively high temperature, and it is difficult to make the middle compartment The temperature in the layer is greatly reduced, so the temperature difference between the two sides of the inner glass is relatively large. According to the calculation formula of heat transfer rate: q=-λA(dt / dx), λ is the thermal conductivity, A is the heat transfer area, t is the temperature, x is the coordinate on the heat conduction surface, q is the heat flux density transferred along the x direction, dt / dx is the temperature change rate of the object along the x direction, - means that the heat transfer direction is opposite to the temperature change rate direction, it can be seen , the rate of heat transfer is proportional to the temperature difference. At this time, the amount of heat exchange between indoors and outdoors is large, and the problem of energy consumption of air conditioners is still significant. It is difficult to achieve better energy-saving effects by passively relying on natural thermal effects for heat exchange.

[0005] The invention patent with the publication number CN104453039A discloses a composite temperature-controlled curtain wall with a three-layer glass structure. The overall active heat exchange realizes the function of heat insulation or heat preservation, and the outer interlayer air duct retains natural ventilation technology for passive heat exchange, so that multiple temperature gradients are formed in the indoor, inner interlayer, outer interlayer and outdoor in sequence, reducing the heat exchange rate and playing a role Better energy-saving effect, but there are still defects. On the one hand, it only has three working modes, and it is based solely on the ambient temperature 28 degrees (summer), and >5 degrees but <28 degrees (transition Season, that is, spring and autumn) to determine which working mode to use, the working mode is single, and no matter which working mode is adopted, the outer interlayer and the inner interlayer are separated by the middle partition glass, and the outdoor and outer interlayer are separated from each other. The inner interlayer and the interior can only exchange heat through heat transfer, and the curtain wall as a whole cannot "breathe". Combining the above two points, the temperature adjustment of the inner interlayer and indoor can only rely on semiconductor thermoelectric temperature control modules and air conditioners for active cooling or cooling. The heat and load are heavy, which is a loss to the energy saving of the air conditioner, and the energy saving performance needs to be improved. On the other hand, the single working mode makes the curtain wall lack the ability to respond to changes in the outdoor environment. For example, when the air pollution is serious, opening the upper and lower dampers will make the outside A large amount of polluted air is poured into the interlayer, which may cause harm to human health if it is poured into the room

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