Method for determining and recycling waste heat of boiler smoke by using phase change heat exchanger
A technology of phase change heat exchanger and determination method, which is applied in the field of determination of waste heat recovery of boiler flue gas by using phase change heat exchanger, and can solve the problem that there is no specific determination method for the value of energy saving
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[0028] The implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.
[0029] A determination method for recovering waste heat of boiler flue gas by using phase change heat exchanger, such as figure 1 As shown, the system for recovering waste heat from boiler flue gas by using phase change heat exchangers includes boiler flue gas pipes, phase change heat exchangers installed on boiler flue gas pipes, condensate pumps, and No. 8 low-pressure heaters connected to condensate pumps and No. 7 low-pressure heaters, the method steps are as follows:
[0030] (1) Calculation of waste heat absorbed by phase change heat exchanger from boiler flue gas:
[0031] m y =Q in ·(H out -H in )=Q in ·[f(P out ,T out )-f(P in ,T in )]
[0032] In the formula: M y is the waste heat absorbed...
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