爪哇7号项目超超临界火电机组技术介绍（英文版）.pptx

神华国华（印尼）爪哇7号2×1050MW燃煤发电工程超超临界火电机组技术介绍 Introduction Of USC Coal-fired Plant;;;1.2 USC Development Path;（三） Over the past decade ， USC rapid development in China ， Large application phase With the rapid development of China‘s economy ， Increased demand for electricity 。 Coal-dominated energy structure, bringing huge environmental pressure ， Need to continuously improve the efficiency of generating units，Reduce energy consumption，emission reduction 。 Construction of high-parameter, high-capacity coal-fired power plants is Chinas inevitable choice 。 In the 1980s began the introduction of subcritical units， In the 1990s began to develop SC technology ， In the 21st century， Through the introduction of equipment, technical cooperation, independent research and development, making USC technology in Chinas rapid development, maturing, Chinas power manufacturing enterprises have led the worlds USC technology development. until now ， Shenhua Group Company has been put into production a total of 45 SC units ， Has been put into operation of the 1000MW USC units a total of 18 units 。;1980;time;;;; The parameter of SC/USC continue to improve .The steam dissolved carrying capacity improve with the increae of steam pressure. Once-through boiler does not have steam drum.With the feedwater into the boiler,the impurities in the feedwater will be deposited in the tubine syestem,and then lead corrosion. So The quality of water and steam of SC/USC is higher than before.;1.4 SC/USC Water Vapor Control and Supervision;;2.1 Overview of the three major equipment;;;;3、Turbine and auxiliary system characteristics;HP-Turbine;3.2 the characteristic ultra super critical steam turbine ;3.3 structure characteristic;Compared with the double flow + nozzle adjustment way1、 The efficiency was improved ； 2、 Solve the problems of intensity and additional gas gap vibration 。 ;3.5 The advanced technology to enhance the reliability and safety ;3.6 The unique operation an