Circulating Pump High Voltage Variable Frequency Transformation Technology In The Application Of High Back Pressure Unit Transformation And Analysis

As the big pressure,clean energy and other projects one after another,unit heating capacity is far lower than the market demand.To solve the contradiction between supply and demand,replace part of the small boiler room heating area,reduce the area of large hot water boiler room running time,increasing the benefit of the enterprise,proposed to jinqiao thermal power plant # 2 unit heating renovation,to recycle waste heat of circulating water.High back pressure of circulating water heating technology is the present domestic generator used in a technical solution to raise the capacity of unit heating,waste heat utilization,energy conservation and emissions reduction,considerable economic benefit and social environment benefit is good wait for an advantage.2011 miles spring low pressure cylinder of 135 mw power plant successfully implemented a double back pressure double rotor swap project,HuaDian power generation co.,LTD.Qingdao no.2(300 mw grade)high back pressure steam turbine heating also in November 2013 and put into production,created the domestic subcritical unit high back pressure.High back pressure heating reform is to improve the power plant of central heating heat source overall thermal efficiency,improve the comprehensive utilization of resources,realize the sustainable development of economic construction,to save energy and improve the atmospheric environment,improve public infrastructure and investment environment of the circular economy projects,in accordance with current national energy policy and sustainable development strategy.Frequency control of motor speed,with its excellent performance of speed adjustment,high efficiency,high power factor and the energy saving effect is remarkable characteristics such as widely used.At home and abroad,is recognized as the most promising way of speed adjustment,is saving energy and reducing consumption,improve the technological process,improve the environment,promote technological progress of a main means.Through long-term research,exploration and application at home and abroad has been as a VFD transformation technology,is widely used in power plants.