A deep recovery device for boiler flue gas waste heat
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TSINGHUA UNIV
- Publication Date
- 2022-07-12
Smart Images
Figure 1 
Figure 2 
Figure 3
Abstract
Description
technical field
[0001] The invention relates to an energy recovery device, in particular to a deep recovery device for boiler flue gas waste heat recovery and reduction of nitrogen oxide emissions, belonging to the technical field of energy. Background technique
[0002] Natural gas, oil, biomass and other fuels contain a large amount of hydrogen, and boiler combustion produces a large amount of water vapor, such as 1m 3 The combustion of natural gas will generate 1.55kg of water vapor, and the latent heat is about 3600kJ, accounting for 10% of the low-level calorific value of natural gas, but this part of the heat is often directly discharged into the atmosphere with the flue gas, causing waste of flue gas waste heat. Therefore, if the temperature of the flue gas can be lowered below the dew point and the part of the latent heat can be recovered, it will play an important role in saving fuel consumption. On the other hand, the flue gas generated by the boiler combustion con...