The paper discusses the selecting principle of pinch point and approach temperature point which belongs to the hrsg ( heat recovery steam generator ) of minitype combined gas - steam cycle 摘要论述小型燃气蒸汽联合循环中，余热锅炉节点温差和接近点温差的选取原则。
In this article , the cause of oxygen corrosion occurred at the water inlet in the waste heat boiler without the mea - sure of removing oxygen and the problem of water shock were dis - cussed 本文对没有除氧措施的余热锅炉气包进水管发生的氧腐蚀及由此产生的气包水冲击问题进行了探讨。
Further , waste heat recovery boiler and steam turbine are combined to improve system efficiency , resulting combined cycle generation . main characteristics of this technology are as follows 为进一步提高系统效率，可利用气化系统和内燃机产生的余热，通过余热锅炉和蒸汽轮机实现联合循环发电。
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The cost - evaluation model of hrsg was also established , the data and empirical correlations used in cost model are all from domestic manufactures and hence are real and practical 利用国内制造厂的实际经验数据和公式，建立了实用的余热锅炉造价估算模型。按照本文提出的成本分摊方法及余热锅炉造价估算模型，建立了bchp系统的热经济学模型。
Furthermore , the factors which affect the load characteristic of the bchp system were analyzed , finally , it was pointed out that the optimal structure of hrsg just be applicable to a particular bchp system and so it cannot be used generally 本文还就bchp系统负荷分布特性的影响作了分析，最后指出余热锅炉最终优化结果只是适用于一个特定的bchp系统，并不具有通用性。
For the optimization function of hrsg , the cool costs is considered as the objective function and the variables are the number of row , the number of tube per row , the horizontal distance and vertical distance between tubes of the evaporator and the economizer 建立了以bchp系统的冷量成本为目标函数，以余热锅炉排烟温度、蒸发器和省煤器中螺旋翅片管管排数、每排管数、管束横向节距和管束纵向节距为决策变量的余热锅炉优化模型。
The equipment has been put into operation after installation , the actual operation shows the newly designed exhaust boiler reached the design load , s table operation . the economic efficiency increased apparently . the total investment was 5 million yuan , the comeback time of invest only 6 months 此设备安装完毕已投入运行，实际运行工况表明，新设计的余热锅炉达到设计负荷，工况稳定，经济效益显著增长，投资500万元，投资回收期仅为六个月。
On one hand one can inquire more comprehensive conditions of steel construction , industrial plant construction or of industrial boilers or on the other hand of refuse incineration plants , waste incineration plants , waste heat boilers in addition to bridge sanitation and steam boilers and steam generators , under the number + 49 203 44 98 - 314 at thyssen kloenne gmbh Thyssen kloenne gmbh是一家高级企业，该企业针对客户需求制造专门的废热锅炉、余热锅炉,桥梁整修,蒸气锅炉和蒸气机,垃圾焚烧设备,工业设备制造,工业锅炉,钢结构。
In the end , the paper makes an thermodynamic analysis , evaluation of investment and techno - economic analysis on the retrofit plans of heat recovery steam generator and air pre - heater , which helps to make the evaluation of the plans from the view of energy conservation and economy benefit 完成热管布置设计和设备细部结构设计，绘制余热回收设计图纸。最后对所设计的余热锅炉和空气预热器方案进行热力学分析、投资概算和技术经济分析，从节能和经济性角度评价了设计方案的效益。
