摘要当今能源与环保问题已经成为全世界所关注的，因为社会对于资源、环境问题和可持续发展有了更高的要求和关注。如怎样提高能源利用率，充更好的利用工业生产过程中产生的大量低温余热，减少 CFC 对臭氧层的破坏，减缓温室效应，已经是个迫不及待要解决的问题。溴化锂吸收式制冷系统则是一种节能环保的制冷方式，回收余热和提高能源利用率的意义已经迫在眉睫。本文就是开展了如何使用溴化锂吸收式制冷机组在火电厂中进行热电冷联产的应用。这篇文章就是指出了热电冷三联产的用途、工作原理及其优势。这里也分析了吸收式制冷的原理，利用液态制冷剂在低温、低压条件下，蒸发、汽化吸收载冷剂的热负荷，产生制冷效应。通过对比就可以比较出溴化锂的几种机组的优缺点，这里就采用了两极吸收式溴化锂制冷机组作为制冷装置。应用的能量调节系统，从而性能就会得到提高溴化锂吸收式制冷机组。按照热力学综合效率最佳的原则，在使制冷工况下，对系统的主要部件进行了有关的计算。并且总结国内外的一些采用溴化锂吸收式制冷技术的例子基础上，在根据其电厂的实际情况及应用溴化锂吸收式制冷系统的可行性，做出以用汽轮机废汽为热源的热电冷三联产系统综合设计方案。结果表明，这个系统采取了两级吸收式制冷机组全部以废热作为驱动热源，从而这样使运行成本降低，这样一来一般投资两年左右就可取得收益，这种方法就是较理想制冷方式，应用于热电冷三联产的制冷方式。关键词：火电厂 ，余热回收，两级吸收式，节能，吸收式制冷，溴化锂AbstractIn the current energy shortages and the context of envirAonmental protection, people to community resources, environmental issues and sustainable development strategies attention. How to improve energy efficiency, make full use of industrial production process of a large number of low-temperature waste heat to reduce the CFC on the ozone layer and slow down the greenhouse effect, more and more attention. Lithium bromide absorption refrigeration energy saving and environmental protection as a means of cooling for waste heat recovery and energy efficiency become more and more important significance. This paper carried out using lithium bromide absorption refrigeration unit in thermal power plants in the study of thermoelectric power of cold.This article first pointed out that the development of CCHP significance, principles and advantages. Analysis of the absorption refrigeration principle: the use of liquid refrigerant in low temperature, low pressure conditions, evaporation, evaporation cooling agent contained in the absorption heat load, resulting in cooling effect. LiBr comprehensive comparison of the advantages and disadvantages of several units, select the polarization of lithium bromide absorption refrigeration unit as a refrigeration device. In this paper, the application of energy-conditioning systems, to further improve the lithium bromide absorption refrigeration unit performance. In accordance with the cooling conditions so that the best thermodynamic efficiency of the principle of integrated, on the main Department ofTo carry out the relevant pieces of the calculation. In conclusion, the use of foreign LiBr absorption refrigeration technology based on the actual situation in power and application of lithium bromide absorption refrigeration system, the feasibility of a given waste with steam to heat the steam CCHP system design program.Comprehensive results show that the system uses a two-stage absorption refrigeration unit completely to waste as a drive source, and its running costs very low, generally about two years in the investment can be recovered, is an ideal application of CCHP cooling way.Keywords: energy conservation; waste heat recovery; absorption refrigeration; LiBr; absorption levels; Thermal Power Plant 目录摘要 .1Abstract .21 绪论 .51.1 课题的研究意义 .51.1.1 能源现状 .51.1.2 发展热电冷三联产 .61.1.3 热电冷三联产原理及优势 .71.2 吸收式制冷系统 .81.2.1 吸收式制冷系统的原理 .91.2.2 吸收式制冷循环的性能指标 .91.3 方案论证 .111.3.1 溴化锂吸收式制冷机的特点 .111.3.2 方案论证 .112溴化锂水溶液 .122.1 水、溴化锂 .123溴化锂吸收式制冷 .183.1 溴化锂吸收式制冷的原理 .183.1.1 溴化锂溶液的 p-t 图 .183.1.2 对比溴化锂吸收式制冷循环和压缩式制冷循环 .193.2 两级发生溴化锂吸收式冷水机组 .203.2.2 水和溴化锂溶液的具体循环流程 .224