在供热系统中,回水盒是一个很主要的部件,系统工作得是否满意,和它极有关系。在某厂的供热系统中,由于国产回水盒在制造上缺乏理论根据(如浮筒重量、压差和阀孔之互相关系上未经过计算),因而产生了一系列的问题。本文特就该厂回水盒的试验修理工作总结一些实际经验,介绍给大家参考。但我们受技术水平所限,难免有错误之处,尚希同志们指正。 In the heating system, the water return box is a very important part. The system is working satisfactorily and it is extremely relevant to it. In a plant’s heating system, due to the lack of theoretical basis for the manufacture of domestic water-receiving boxes (such as the weight of buoys, pressure difference and valve hole are not calculated on the relationship between each other), a series of problems have arisen. This article sums up some practical experience on the test and repair work of the water return box of the factory and introduces it to everyone for reference. However, we are limited by the level of technology and it is inevitable that there are mistakes. Comrades Shangxi corrected them.