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北方地区冬季取暖期较长,一般是从每年10月至第二年4月长达6个月之久。为了节约能源和保护环境的需要,哈尔滨市2个区采用集中供热的方式为居民取暖,由于是连续供热,居室内温度较高,经调查早、午、晚平均温度在20～24℃之间,加上北方冬季室内空气干燥,居室门窗长时间关闭,空气流通不好易造成居室空气中相对湿度较低,使人产生咽喉痛、鼻出血、易疲劳等症状,对人群的健康产生一定的影响。为此我们对哈尔滨市采用集中供热和非集中供热的家庭进行了居室空气相对湿度的调查,结果如下。
Winter heating in the northern region is longer, usually from October to April the following year up to 6 months. In order to save energy and protect the environment, two districts of Harbin use central heating to warm the residents. Due to continuous heating, indoor temperature is high. After investigation, the average temperature in morning, afternoon and evening ranges from 20 ℃ to 24 ℃ Between the northern winter indoor air drying, long-term closed doors and windows room, air circulation is not easy to cause low relative humidity in the room air, causing sore throat, nosebleeds, fatigue and other symptoms of the health of the crowd A certain impact. To this end, we conducted a survey of indoor air relative humidity in households in Harbin using district heating and non-district heating. The results are as follows.