1results about How to "Improve the mismatch" patented technology

The utility model belongs to the technical field of thermal power equipment, and relates to a high-efficiency combined preheater system of a thermal power plant boiler, which comprises a tubular air preheater arranged at the tail part of the boiler and used for heating primary air and a rotary air preheater used for heating secondary air, flue gas inlets of the tubular air preheater and the rotary air preheater are connected with a flue outlet of the denitration system, flue gas outlets of the tubular air preheater and the rotary air preheater are connected with the dust remover, and a water supply heat exchanger is further arranged between the flue gas inlet of the tubular air preheater and the flue outlet of the denitration system. The rotary preheater can further improve the operation efficiency of a coal power plant, solves the problems of high air leakage, loss and catalyst blockage of a traditional rotary preheater, has the advantages of energy conservation, economy and reliability, and meets the technical requirements of efficient and clean operation of a thermal power plant.