What kind of gas detector is needed in underground parking garages and what does it do?
Nowadays, with the increasing number of private vehicles, large underground garages in cities are becoming more and more popular due to their unique advantages. However, while convenient, incidents of CO (carbon monoxide) poisoning in underground garages are also frequently reported.
Carbon monoxide is colorless, odorless, and tasteless, which can cause significant harm to the human body when inhaled. It combines with hemoglobin to produce carboxyhemoglobin, leading to hypoxia in humans. The most common symptoms of carbon monoxide poisoning, such as headache, nausea, vomiting, dizziness, fatigue, and a feeling of weakness, can cause serious damage to the heart and central nervous system when exposed to carbon monoxide, leading to sequelae.
According to tests, when the concentration of carbon monoxide in the air reaches 50ppm, healthy adults can withstand it for 8 hours; When reaching 200ppm, healthy adults may experience mild headaches and fatigue 2-3 hours later; When reaching 400ppm, healthy adults experience frontal pain within 1-2 hours, which is life-threatening after 3 hours; At 800ppm, a healthy adult may experience dizziness, nausea, and spasms within 45 minutes, lose consciousness within 2 hours, and die within 2-3 hours.
The production of carbon monoxide in underground garages mainly comes from car engines. When the engine is idling, due to insufficient combustion of gasoline, a large amount of CO containing exhaust gas will be produced. Underground parking lots are enclosed environments where vehicles frequently enter and exit, and the exhaust emissions are difficult to release. This can easily accumulate a large amount of CO gas, causing a pungent odor to pervade the parking lot and harming human health. Therefore, underground garages and parking lots should be equipped with air supply and exhaust systems to replace with fresh air.
Solution:
A carbon monoxide detection system needs to be installed in the underground garage. The main purpose is to:
1. Regular ventilation ensures that the concentration of carbon monoxide in the garage is below the hazardous level, which is a safety consideration.
2. Exhaust according to the concentration of carbon monoxide in the underground garage to avoid energy waste caused by excessive exhaust frequency, which is considered energy-saving.
