确定了锅炉整体布置,算出了余热锅炉吸热量为2.99E+7（），热效率为

The overall layout of the boiler was determined, the heat absorption of the waste heat boiler was calculated to be 2.99E + 7 (), the thermal efficiency was 69.2% and the gas production was 12.7t / h, the flue resistance was calculated, the fan was selected, and the model was confirmed. In the calculation of the heat exchanger, it was determined that the material of the heat exchanger was heat-resistant cast iron, the working medium was air, the heat exchange amount was determined, and the heat exchange area was calculated to be 878. Finally, the economic and other aspects of the two methods are compared. The economic efficiency of the waste heat boiler is higher, its products are more widely used, and it is easy to transport. The single form of heat exchanger is not suitable for the recovery of waste heat from high-temperature flue gas, which will result in large heat transfer temperature differences and the fact that the heat exchanger is too large to manufacture and install. Therefore, in the utilization of waste heat of high temperature flue gas, waste heat boiler is more practical.

Determined the overall arrangement of the boiler, calculated that the residual heat boiler heat absorption of 2.99E plus 7 (), thermal efficiency of 69.2% and gas production of 12.7t/h, calculated the flue resistance, the choice of fan, confirmed the model. In the calculation of the heat exchanger, determine the heat exchanger material as the number heat-resistant cast iron, the work quality is air, determine the heat exchanger size, calculate the heat exchanger area of 878. Finally, the economic and other aspects of the two methods of comparison, the available waste heat boiler solder boiler solder ingres son is more economical, its product use is more extensive, and easy to transport. A single heat exchanger form, is not suitable for high temperature flue gas waste heat recovery, will lead to heat transfer temperature difference, heat exchanger volume is too large to manufacture and installation and other practical problems. Therefore, in the use of heat exhaust waste heat, the residual heat boiler is more practical.

The overall layout of the boiler is determined, the heat absorption capacity of the HRSG is 2.99e + 7 (), the thermal efficiency is 69.2% and the gas production is 12.7t/h, the flue resistance is calculated, the fan is selected, and the model is confirmed. In the calculation of heat exchanger, it is determined that the material of heat exchanger is No. heat-resistant cast iron, the working medium is air, the heat exchange capacity is determined, and the heat exchange area is 878. Finally, comparing the economy and other aspects of the two methods, we can get that the economic benefit of HRSG is higher, its products are more widely used and convenient for transportation. A single type of heat exchanger is not suitable for waste heat recovery of high temperature flue gas, which will lead to practical problems such as large temperature difference of heat transfer, too large volume of heat exchanger and difficult to manufacture and install. Therefore, in the utilization of high temperature flue gas waste heat, the waste heat boiler has more practical significance.