论文部分内容阅读
在供热节能技术方面,世界上一些工业发达的先进国家,已将供热系统的热损失降低到25％以下。与这些国家相比,我国的能源利用率很低,据统计,平均约在28％左右。就当前许多工厂企业的蒸汽供热系统而论,普遍而又严重的问题之一就是凝结水和二次蒸汽的大量损失。据有关资料介绍,一般工厂企业的凝结水回收率只有20～40％,这项损失占供热量的10～20％,其中二次蒸汽未予利用所造成的损失高达5％以上,疏水器的漏汽率竟有15％
In terms of energy-saving heating technology, some advanced industrial countries in the world have reduced the heat loss of heating systems to less than 25%. Compared with these countries, China’s energy efficiency is very low, according to statistics, the average is about 28%. As far as the steam heating system of many factories and enterprises is concerned, one of the common and serious problems is the large loss of condensed water and secondary steam. According to relevant information, the recovery rate of condensate in general factory enterprises is only 20 to 40%, and this loss accounts for 10 to 20% of the heat supply, and the loss caused by the unutilized secondary steam is up to 5%. The leak rate is as high as 15%