350MW超临界机组高背压供热改造研究及性能分析

Research and performance analysis on high-back-pressure heating reformation of 350MW supercritical unit

针对大连开发区热电厂当前供热存在的问题,提出回收汽轮机排汽余热用于供热,以提高机组的供热能力,满足日益增加的供热需求。对大连开发区热电厂1#机组汽轮机进行了高背压供热改造,改造后机组的供热能力显著提高,能耗降低,同时污染物排放减少,经济效益显著。

In view of the existing problems of heat supply of thermal power plant of Dalian Development Zone, re-covering the exhausted heat of turbine is put forward to improve the heating capacity of the unit and meet the in-creasing heat demand. High- Back-Pressure heating reformation is carried out to 1# turbine of the thermal power plant of Dalian Development Zone. After transformation, the heating capacity of the 1# unit is improved significantly, the energy consumption and the pollutant discharge are reduced, and the economic benefit is remarkable.