在许多生产厂房如纺纱车间、计算中心的机器间、实验室、自动电话局机器房中,在大的设备散热情况下,往往必须保持较高的空气相对湿度。在不大的房间中,采用带加湿器的柜式空调器是方便的。最广泛采用的是蒸汽加湿器,因为它构造简单,而且紧凑。在蒸汽加湿器中,一般采用电加热——沸腾器,硬度盐沉积在加热部件上,同时也随着蒸汽带入空气中,当然,数量上是比喷水时要少得 In many production plants, such as spinning workshops, computer centers in computing centers, laboratories, and automatic telephone exchanges, it is often necessary to maintain a relatively high relative air humidity in the case of large equipment heat dissipation. In a modest room, it is convenient to use a cabinet air conditioner with a humidifier. The most widely used is a steam humidifier because it is simple and compact. In a steam humidifier, an electric heating boiler is generally used. The hardness salt is deposited on the heating member and is also brought into the air with the steam. Of course, the amount is less than that when the water is sprayed.