一、概述集中供热、热电联合生产是充分利用能源节约能源的一项重要措施。而汽轮机型式的合理选择对系统热经济性有决定性的影响,因此,合理选择汽轮机型式就成为集中供热成败的关键。一般电厂根据供热条件的不同,可使用背压式或抽汽冷凝式或低真空运行冷凝式汽轮机。选用汽轮机,既要考虑到设计工况下的经济性,还要考虑到部分负荷下的经济性。(也就是要考虑汽轮机的实际运行工况)。 First, an overview of central heating, combined heat and power production is to make full use of energy to save energy is an important measure. However, the reasonable choice of steam turbine type has a decisive influence on the thermal economy of the system. Therefore, choosing the turbine type rationally becomes the key to the success or failure of central heating. General power plant Depending on the heating conditions, you can use the back-pressure or extraction condensing steam turbine or low vacuum operation. Turbine selection, it is necessary to take into account the economy under design conditions, but also to take into account part of the economy under load. (That is, to consider the actual operating conditions of steam turbine).