摘要
以某300MW亚临界燃煤供热机组为基础,结合已有吸收式热泵供热改造,进行集中制取70℃和80℃热水的技术方案分析。详细分析了系统在非采暖期、采暖初末寒期和高寒期时不同的技术经济和项目节能效益,得出结论:项目拓宽了热力市场,使得吸收式热泵在非采暖季也能投入运行,增加了电厂发电量。同时,制取70℃热水的项目净收益大于80℃的收益,投资回收期也较短。在用户热水需求4000t/d的情况下,制取70℃生活热水可实现节煤1.28万t,制取80℃生活热水累计可节煤1.51万t,项目具有较好的节能减排效果。
Based on an 300 MW sub critical coal-fired heating unit and existing absorption heat pump,the technical solutions of central heating system for 70℃ and 80℃ is completed. The energy-saving effects and technical economy in non-heating period,early cold period and high cold period are analyzed in detail. Through the contrast analysis,the thermal market is expanded,the absorption heat pump can be put into operation in the non-heating season,and power generation can be increased. The 70℃ hot water project has greater net income,shorter payback period than 80℃. In the case of hot water demand 4000 tons/day,the preparation of 70℃ domestic hot water can achieve 12,800 tons of coal savings,which is 15,100 tons in 80℃. The project has a better energy saving effect.
出处
《节能》
2017年第11期76-79,共4页
Energy Conservation
关键词
集中供热
吸收式热泵
热水
节能减排
central heating
absorption heat pump
hot water
energy conservation
