A detection method for the air leakage rate of the flue gas heat exchanger in the desulfurization unit of the thermal power plant
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 广州珠江电力有限公司
- Publication Date
- 2021-09-14
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Figure 1
Abstract
Description
technical field
[0001] The invention relates to the field of detecting the air leakage rate of a flue gas heat exchanger, in particular to a method for detecting the air leakage rate of a flue gas heat exchanger of a desulfurization device in a thermal power plant. Background technique
[0002] In order to increase the exhaust temperature of flue gas after desulfurization in thermal power plants and reduce the 3 The acid mist formed when the temperature reaches the dew point will corrode the tail flue and chimney, and avoid the formation of white smoke plume. Most power plants use a flue gas heat exchanger when choosing a technical route, that is, using the original flue gas entering the absorption tower, the temperature reaches 130°C, the temperature of the net flue gas after heating and desulfurization and washing is only about 50°C, and the temperature of the net flue gas is raised to above 80°C and then discharged into the atmosphere through the chimney. However, the po...