A flue gas treatment device
A technology for flue gas treatment and flue, which is applied in the direction of lighting and heating equipment, and can solve the problems of large maintenance, high energy consumption, and failure to achieve expected results.
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Embodiment 1
[0026] Such as figure 1 As shown, the flue gas treatment device 1 in the dotted line box, the device 1 includes a vapor compression cycle system, that is figure 1 The compressor 7, the first heat exchanger 5, the throttling member 8 and the second heat exchanger 6 are sequentially connected by the refrigerant pipeline, and the refrigerant passes through the first heat exchanger 5 and throttling according to the direction of the outlet of the compressor 7. After components 8 and second heat exchanger 6, return to compressor 7. That is, the refrigerant inlet of the first heat exchanger 5 is connected to the compressor 7 , the refrigerant outlet is connected to the throttling component 8 , and the second heat exchanger 6 is also connected between the compressor 7 and the throttling component 8 .
[0027] Specifically, the first heat exchanger 5 is arranged in the flue 3 between the wet desulfurization device 2 and the chimney 4, and the first heat exchanger 5 is used as a conden...
Embodiment 2
[0031] figure 2 The difference from Embodiment 1 is that the first heat exchanger 5 is arranged in the bypass flue 11 to exchange heat with the flue gas in the bypass flue 11, and a part of the flue gas passes through the bypass flue. After the first heat exchanger 5 in the channel 11 performs heat exchange, the treated flue gas is mixed with another part of the flue gas at the junction 12 to form flue gas whose temperature is higher than the minimum non-condensing temperature T.
[0032] In the actual flue gas treatment, custom-made heat treatment devices are often used. In order to meet the design requirements of the flue gas treatment device, only part of the flue gas will be processed and then mixed, which improves the flexibility of the flue gas treatment device. sex. For another example, when the equipment in another flue is overhauled, the heat exchanger in the bypass flue can take on the job of heating the flue gas.
Embodiment 3
[0034] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that a four-way valve 9 is also provided in the vapor compression cycle system, and the four-way valve 9 controls the flow direction of the refrigerant in the first heat exchanger. When the four-way valve 9 is as image 3 When the flow direction in the flow is flowing, the first heat exchanger 5 is used as a condenser, that is, the flue gas treatment device includes the first heat exchanger as the first state of the condenser; when the four-way valve 9 is as Figure 4 When the flow direction in the flow direction flows, the first heat exchanger 5 is used as an evaporator, that is, the flue gas treatment device includes the first heat exchanger as the second state of the evaporator.
[0035] In this embodiment, the function of the second heat exchanger will also change correspondingly with the switching of the four-way valve 9. In the first state, the second heat exchanger 6 is used as ...
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