循环水吸收式热泵供热联产机组性能分析  

Performance Analysis on Circulating Water Absorption Heat Pump of Heating Cogeneration Unit

作　　者：赵斌[1] 杨玉华[1] 钟晓晖[1] 邬志红[1] 

机构地区：[1]河北联合大学冶金与能源学院,唐山063009

出　　处：《汽轮机技术》2013年第6期454-457,共4页Turbine Technology

基　　金：河北省科学技术研究与发展计划项目(11213941)

摘　　要：抽汽供热和低真空供热是目前热电联产集中供热的主要方式,而循环水热泵供热新技术具有进一步提高机组热效率和供热能力的潜力。建立了吸收式热泵和汽轮机组的理论计算模型,并以林电25MW抽汽机组设计参数为基础,确定了两种计算方案,对抽汽供热与循环水吸收式热泵供热的联产机组性能指标进行对比分析。计算表明,在方案Ⅱ条件下,循环水吸收式热泵供热机组热效率达到了77.7%,供热负荷达到了83.47MW,分别比抽汽供热提高了22.43个百分点和31.3MW,供热能力提高了60%。研究结果为抽汽机组的节能改造提供了思路及方案。Extracting steam for heating and supplying heat with low vacuum are the main ways of the district heating in combined heat and power （CHP） system, and a new heating technology of circulating water heat pump has further potential to improve the thermal efficiency and heating capacity of the unit. This paper established a Theoretical calculation model about the absorption heat pump and the turbine unit; determined two calculation programs, contrasted and analyzed the performance index of the extracting steam for heating and circulating water absorption heat pump units, which are based on design parameters of the 25MW extraction steam unit in Lindsey Power Plant. Calculations show that the thermal efficiency of the circulating water absorption heat pump unit reaches 77.7% under the conditions of the scheme I1 , heating load reaches 83.47MW,which is 22.43percentage points and 31.3MW higher compared with extracting steam for heating unit, and the heating capacity increased 60%. The resuhs can provide ideas and solutions for the saving energy transformation of the extraction steam unit.

关 键 词：抽汽供热 吸收式热泵 热电联产 性能指标 

分 类 号：TK115[动力工程及工程热物理—热能工程]