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苏联铁路广泛采用装有混合采暖系统的车辆。这种采暖系统中的锅炉可以用煤采暖,也可以使用装在锅炉内部的电热元件采暖。使用电热器可以自动地、更准确地保持锅炉里必要的水温。全苏铁路运输科学研究院在理论研究的基础上,完成了锅炉水温和外气温度间的相互关系的研究。外气温度是以一昼夜为周期按谐波规律变化的。在这种情况下,考虑了车体外围结构的热惰性和采暖系统中水循环速度对采暖管路中热流波动相对锅炉里水温波动相位滞后的影响。采暖系统的发热量同
The Soviet railway is widely used with a hybrid heating system for vehicles. The heating system of the boiler can be heated with coal, you can also use the heating element installed inside the boiler heating. The use of an electric heater automatically and accurately maintains the necessary water temperature in the boiler. Based on the theoretical research, Quanzhou Railway Transportation Science Research Institute completed the research on the relationship between boiler water temperature and outside air temperature. Outside temperature is a day and night cycle according to the law of harmonic changes. In this case, the influence of the thermal inertia of the vehicle body periphery structure and the water circulation speed in the heating system on the phase lag of the water temperature fluctuation in the heating piping relative to the boiler water temperature was considered. Heating system with the same heat