Power Plant Boiler Combustion Optimization Analysis And Research

At present,China is still dominated by thermal power.,and is about 75% of the total of Generation. But thermal power consumption accounts for more than 50% of national coal consumption . Led to emissions of sulfur dioxide is about 45% of the country's total. While the emissions of carbon dioxide accounts for about 40% of the total. Therefore, thermal powers are facing greater pressure of energy saving in the low-carbon economy.Combustion process is a very complex physical and chemical reactions. The actual state of the boiler and crew is in the constant adjustment because of the change of grid load and so on when power plant is in operation. Therefore, to ensure that the steam quality, production and safe operation, and achieve the boilers and other equipment in the economic operation at the same time, we must optimize and adjust the operating parameters of the boiler which is in operation.Currently used by the regulation control are often not fully control for the characteristics of boiler operating the best conditions. Moreover, with the unit load changing , the change in efficiency operating is also very large, which can not keep unit operating in the best running curve. Over time, the original operational control basis will change ,and the experience of operating personnel will not meet the unit changes. In this case, optimization control system of the boiler combustion has been more and more attented.In order to achieve saving energy, reducing pollution of thermal power , enhancing optimal control of combustion side of unit is one of the most direct and effective method. In this paper,we desguss two key technologies boiler combustion Optimization System: prediction model technology and optimal search technology. And reference to overseas advanced combustion optimization system discuss the software architecture and technical characteristics of the real-time closed-loop control of the boiler combustion optimization system.