一、引言某车辆段在1959年就完成了施工设计。后来根据一些地区的调查,发现设计竣工后的各类房屋,无论采用暖气片或暖风机采暖系统,室内温度大部份不能达到设计要求。当时错误的认为主要是由于采用的系数偏低。因此,1961的年将该段的采暖部份重新进行修改设计,使暖气片和暖风机的数量,都较前有所增加。施工完交付运营后,采暖系统仍然存在很多问题。如:暖气片前后 I. INTRODUCTION The construction design of a depot was completed in 1959. Later, according to surveys in some areas, it was discovered that various types of houses after the completion of the design, regardless of the use of radiators or heaters for heating systems, could not meet the design requirements for most indoor temperatures. The mistaken belief at the time was mainly due to the low coefficient used. Therefore, in the year 1961, the heating part of the section was redesigned and the number of radiators and heaters increased. After the construction is completed and delivered, there are still many problems in the heating system. Such as: before and after the radiator