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在室温自动控制中,双位调节应用得很广泛。我国目前生产的整体式空调机组,大部分采用电加热器,而且几乎都用电接点水银温度计和电子继电器(或晶体管继电器)实现双位调节。在设计中常常为了预计恒温精度,需要了解室内温度的变化与送风方式、换气次数、围护结构、扰量(冷负荷或热负荷)变化和控制仪表之间的关系。我们主要综合了1964年至1966年国内许多单位在恒温测定中所得到的大量数据,并根据热工理论和自动调整理论(推导过程略),得出了一套计算方法。应用这套计算方法,只要知道送风方式、换气次数、恒温室的
In the automatic control of room temperature, the two-position adjustment is widely applied. Most of the integrated air-conditioning units currently produced in China use electric heaters, and almost all of them use electrical contact mercury thermometers and electronic relays (or transistor relays) to achieve two-position adjustment. In order to predict the accuracy of the constant temperature in the design, it is necessary to understand the relationship between the changes in the indoor temperature and the air supply method, the number of air changes, the envelope structure, the change in the disturbance (cooling load or heat load), and the control instrument. We mainly synthesized a large amount of data obtained by many domestic units in the constant temperature measurement from 1964 to 1966, and based on the thermal theory and automatic adjustment theory (detailed derivation process), we obtained a set of calculation methods. Apply this calculation method, as long as you know the air supply method, the number of air changes, the temperature of the room