Research And Application Of Variable Frequency Speed Regulation In Energy Saving Modification Of 600MW Coal-fired Unit In Inner Mongolia

With the continuous development of domestic economy and the society, adhere to the scientific concept of development, sustainable development has become concern in China and actively advocated the way, simultaneously also proposed giving priority to conservation, efficiency will be regarded as the first task of national energy policy.At the same time, with the rapid progress and the development of the electric power industry, the requirements for the peak load regulation grid continuously improve, the unit auxiliary adjusted to adapt to the power safety and economic operation of ongoing requirement, has a direct effect on the safe operation of power plant and save cost, our country many power plants have been using frequency conversion technology through the technological transformation methods, in order to comprehensively promote the unit operation efficiency enhance the overall efficiency of the power plant, and achieved good results.This paper takes Inner Mongolia Huadian Power Plant as a research on the hair coated Ming, according to the current actual operation condition of power plant,the optimization method of energy saving technology with reference to the domestic 600MW units similar to the unit,the part of the main transmission machine equipment variable frequency transformation of condensate pump suction fan and the implementation of the feasibility study, in order to achieve effective to reduce power generation coal consumption, reduce cost, reduce the pollution to the environment.After the research proof:This paper finally analyses and energy saving effect of suction fan after the transformation of condensate pump transformation analysis, found that we use frequency conversion adjusting energy efficiency of up to 49.59%; the two annual cost savings reached 3900000 yuan, and3000000 yuan with the initial investment is compared, the plan will be able of initial investment within 10 months. In the wind machine above, each unit suction blower, a year can save costs:1856419.2 yuan. Thus, through changing the weight can have good energy-saving effect.