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由于散热器依靠自然对流和低温辐射向室内放热,因而不可避免地体量较大。加之采暖系统的承压要求,壁面又不能太薄。使得其金属耗量高达系统总金属耗量的60～80％。我国有幅员广阔的采暖地区,改善散热器的传热性能,减少其金属耗量对国民经济的意义是不言而喻的。笔者最近在苏联进修期间有机会走访了若干专门研究散热器的科研部门和生产散热器的工厂。对比我国的情况,苏联在改善散热器传热性能方面有以下可取之处。一、加快散热器的更新换代目前苏联生产的散热器中60％左右是铸铁散热器,此外还有钢制散热器和钢铝组合
Since radiators rely on natural convection and low-temperature radiation to radiate heat into the room, they inevitably have a large volume. Coupled with the heating system pressure requirements, the wall can not be too thin. Makes its metal consumption up to 60-80% of the total metal consumption of the system. China has a vast heating area. It is self-evident that improving the heat transfer performance of radiators and reducing their metal consumption will have significance for the national economy. During the recent Soviet training, the author had the opportunity to visit a number of research institutes specializing in radiators and factories producing radiators. In contrast to the situation in China, the Soviet Union has the following advantages in improving the heat transfer performance of radiators. First, to speed up the replacement of radiators Currently about 60% of Soviet radiators are cast iron radiators, in addition to steel radiators and steel-aluminum combinations.