Building ventilator with fireproof valve

Abstract

The invention provides a building ventilator with a fireproof valve. The building ventilator is arranged on a ventilating opening of an indoor exterior wall of a building and is used for ventilating naturally; when the air tightness state of the building is good, the building ventilator does not consume energy, and outdoor air containing mist, dust and noise is subjected to purification treatment such as demisting, dedusting, sound absorption and noise reduction via an insect-proof filter, the fireproof valve, an air guiding tube, two layers of dedusting filter cloth and a secondary filtering dedusting and purifying device by using hot pressure which is formed by indoor and outdoor air pressure differences and indoor temperature differences; the efficiency of removing mist drops with the grain size of 5.0 micrometers is 90 percent; efficiency of removing inhalable particles with the grain size of particulate matter (PM) 2.5 is 85 percent; the sound which can be absorbed by the building ventilator and the noise which can be reduced by the building ventilator are over 35 decibels; and moreover, when fire spreads or harmful gas flows into an indoor environment via the building ventilator after a fire hazard occurs, the fireproof valve is closed by a temperature automatic-control and manual method, the quality of indoor air is maintained for a long time on the premise of ensuring the safety of people in the indoor environment, and effects of energy conservation and safety are achieved.

Description

technical field [0001] One of the present invention is a building ventilator with a fireproof valve, which relates to the natural ventilation openings provided by the indoor and outdoor walls of the building, and implements natural ventilation, and has no energy consumption to contain mist (liquid mist water droplets) , dust (solid particles), and noisy outdoor air have the functions of dust removal and mist removal, sound absorption and noise reduction, and the purpose of setting fire protection valves is to prevent the fire from spreading once a fire occurs or harmful gases flow into the room through the natural air inlet. , on the premise of ensuring indoor personal safety, it is a building energy-saving and safe environmental protection field that always maintains indoor air quality. Background technique [0002] The mist, dust, noise contained outdoors and formaldehyde, benzene, volatile chemical organic substances (TVOCs) contained indoors pollute the air, but they end...

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Problems solved by technology

[0002] The mist, dust, noise contained outdoors and formaldehyde, benzene, volatile chemical organic substances (TVOCs) contained indoors pollute the air, but they endanger people's respiratory tract and cardiovascular system all the time, affecting human health; so in The use of natural ventilation in civil buildings, the inflow of outdoor fog, dust, and noise into the room is generally considered by experts and professors to be a difficult problem in the world's construction industry. In the process of natural ventilation of buildings, buildings with fire protection equipment Ventilators have not seen the precedent of setting; a high-rise building in the construction process due to improper use of fire caused by fire insulation materials, causing quite a lot of casualties. to the interior; assuming that the professional and technical personnel of architectural design have the foresight and full attention, the ventilation openings are equipped with fire prevention equipment and measures, which can prevent or avoid the possibility of harmful and toxic gases flowing into the room through the ventilation openings when a fire occurs, and the people who are caused by the fire Casualties should be kept to a minimum; while building natural ventilation is one of the main ways to reduce indoor air pollution and prevent carbon monoxide poisoning, but it must also be considered that buildings should have fire protection equipment and lightning protection measures

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