Two kinds of representative cc - repowering ( feed water heating repowering , full firing repowering ) are study in this paper . the concise performance expressions and typical data are analyzed for the combined cycle and for repowering the existed steam power station 本文针对两种典型的联合循环系统（排气助燃型和给水加热型）进行了研究，给出了这两种联合循环及其在用以增容改造已有的蒸汽轮机电厂时的性能简明示式和典型数据。
This paper put forward one kind of new load - regulation method , namely steam turbine low - vacuum load - regulation method . this new way has successfully achieved deep - load - regulation aim on 100mw unit , while not reforming current equipment and not firing the helping - combustion oil in the furnace 本文提出一种新的调峰方式，即国产100mw机组低真空深度调峰。该方式不经过设备改造、锅炉不投油助燃，通过降低汽轮机凝汽器真空实现机组深度调峰。
It could intensify and control the hot coal gas to have stable combustion by regulating the physical mixed process of hot coal gas and combustion - supporting air . furthermore , it designs and develops the dgr type flame adjustable combustion equipment , suitable for the combustion of hot coal gas and it has the advantages of high combustion efficiency , high turndown ratio , safe and reliable operation . it has obtained the national patent 可以通过调节热煤气与助燃空气的物理混合过程来强化和控制热煤气的稳定燃烧，并设计研制了一套适于热煤气燃烧的dgr型火焰可调式燃烧装置，燃烧效率高，调节比大，运行操作安全可靠，已获得国家专利。
This paper gives an example that is a project about repowering 2 50mw coal - fired plant as combined cycle . it is found out that after full firing repowering , the absolute efficiency gain is 4 . 62 % and after feed water heating repowering , the absolute efficiency gain is 2 . 78 % 本文结合2 50mw燃煤机组改造为联合循环的方案实例，计算出排气助燃型联合循环系统更新改造使原燃煤机组绝对效率提高了4 . 62 % ，给水加热型联合循环系统更新改造使原燃煤机组绝对效率提高了2 . 78 % 。
The research status of the world diesel exhaust aftertreatment technology is summarized systemicallyo at the same time , the development status and problems about oxygenation catalysis converter and particulate filter are analyzed on the basis of mentioned informations , we bring up a diesel exhaust cleanse system , that adopts the technique course of catalysis conversion combining particulate collection and regeneration the system collects exhaust particulate by means of efficacious filtering material it can oxidize ho co and macromolecule solvable organic via catalyst and diesel oil additive enhanced temperature will partly oxidize collected particulate and ultimately achieve the aim of exhaust reduction , after processing system frame design and trial matching , it ' s detected that the system can surely cleanse gas exhaust and particulate in addition , gas - ejected combustion - supporting regeneration for diesel particulate filter is also researched , we have rudimentarily designed the software and hardware of the g as - ejected combustion - supporting system having processed a series of trials , we discover the rules of the system credibly working these rules demonstrate the right direction for researching gas - ejected combustion - supporting regeneration technology 本文系统地介绍了国内外柴油机排气后处理技术的研究现状，分析了氧化催化转化器和微粒捕集器的发展现状及存在的问题，以此为基础，提出了一种柴油机排气净化系统，该系统采用催化转化与微粒捕集及再生相结合的技术路线，通过过滤材料的有效过滤，将排气中的微粒进行收集，借助于催化剂和柴油添加剂使排气中hc 、 co及高分子可溶性有机物氧化，产生的高温使得收集到的微粒部分氧化，从而达到降低排放的效果。通过系统结构设计和试验匹配，实现了对气体排放物和微粒的净化。同时，论文中还进行了柴油机微粒捕集器喷气助燃再生的研究，初步设计了喷气助燃系统，进行了控制系统软、硬件的开发，通过正交试验，摸索出了喷气助燃系统可靠工作的一般规律，为喷气助燃再生技术的开发提供了方向。
