BOILER INSTALLATION

Field of use: Heat power engineering, including protection against corrosion of surfaces of heating boilers is stopped. Summary of invention: Boiler installation, comprising a duct connecting between a consistent set blower fans, valves, regenerative heat exchanger for heating air, equipped with a pipeline supply of flue gas with shutoff and control valves and the pipeline of the flue gases from it, a regenerative heat exchanger for heating air is installed between the heat exchanger and valving duct, which is connected to a regenerative air preheater, the air output of which through the air duct supplying hot air connected with the burners, located in the fuel of radiation heating surfaces, which is connected to the convective shaft, in which are successively placed convective heating surface, one output of which through the pipeline connected to the regenerative heater, through the valve and the exhauster is connected with the chimney, and the second output shafts of a pipeline recirculation of flue gases, connected to the exhauster recirculation of flue gases, the first output of which through valves connected with the burners, the second output through the pipeline, equipped with shut-off valve, connected by piping with shutoff valves, installed after the blow fan, and the third output from the exhauster recirculation of flue gases is connected via tubing aggressive air, which is connected through valves with the chimney, the pipe feeding the hot air in the radiation heating surfaces of the boiler installed the pipe feeding the hot air in a convective heating surface of the boiler with regulating and shutoff valves. Technical result: Installation of hot air piping with regulating and shutoff valves ensure the flow of hot air in the convection shaft of the boiler, gives the opportunity to redistribute the flow of hot air between the fuel and convective chimney, leading to higher efficiency of corrosion protection of metal heating surfaces of the boiler the boiler plant is stopped. Область применения: Теплоэнергетика, включая защиту от коррозии поверхностей нагрева остановленных котельных установок. Суть изобретения: Котельная установка, содержащая воздуховод, соединяющий между собой последовательно установленные дутьевой вентилятор, запорную арматуру, рекуперативный теплообменник для подогрева воздуха, оснащенный газопроводом подачи дымовых газов, с запорной и регулирующей арматурой и газопроводом отвода дымовых газов из него, рекуперативный теплообменн