汽轮机高压加热器文献及其翻译.docVIP

In the operation of high pressure heater problems and countermeasures abstract: coal-fired power plants in high-pressure heater due to work under high temperature and high pressure, so easily damaged, damage could not invest in operation with high water temperature will drop, power, this paper points out the existing high pressure heater leakage pipes and bilge mouth water distribution automatic bypass seal not beautiful, scanty water system automatically into bad and so on some common problems, analyses the causes of these problems, and puts forward corresponding countermeasures. Keywords: high pressure heater; Leak; TouRuLv; countermeasures 1. preface Steam turbine thermal heating system is adopted to improve the unit operation of the important means of economic. Back to heat heating system operation reliability and performance directly affected the height, complete unit operation of economy TouRuLv is economic indicators heater in important evaluation indexes. As coal-fired power plants to the large capacity, high parameter unit development, high pressure heater add) (hereinafter referred to as high as water supply under pressure and temperature rise accordingly; There will be in operation by the unit loads of mutation, pump failure, bypass switching caused the sudden pressure and temperature, these would give high add damage. Therefore, in addition to the high add design, manufacture and installation must ensure that quality outside, still in operation and maintenance etc, and take the necessary measures to ensure the long-term safety of operation of high added. 2. the existing problems In order to ensure the safety of coal-fired power plants ManFa, each high economic add all should is in operation. If because of the failure, should according to GaoJiaShi must be discontinued with specified high manufacturing Numbers and discontinuation of relationships, or according to the load to determine the steam extraction pressure steam turbine unit of allowable m