Dual regeneration energy saving device
A technology of absorption device and regeneration system, applied in the direction of steam generation, heating method, application, etc., can solve the problems of high investment cost, inability to make deep use of a large amount of latent heat of flue gas water vapor, waste of energy and water resources, etc., and achieve water conservation Effect
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Embodiment 1
[0052] This embodiment provides a double regeneration energy-saving device, such as figure 1 and 2 As shown, it includes a dedusting device 1, a desulfurization device 2 and an absorption device 3 connected in sequence. For example, the dedusting device 1 can be an electric precipitator, the desulfurization device 2 can be a desulfurization tower, the absorption device 3 can be an absorption tower, and the absorption tower can be a desulfurization tower. An empty tower or a packed tower, when it is a packed tower, the packing can be single-layer or multi-layer, the lower part of the absorption device 3 is provided with a flue gas inlet, and the upper part is provided with a flue gas outlet, and also includes,
[0053] The first circulation circuit, its liquid inlet port communicates with the bottom of the absorption device 3, and the liquid outlet port communicates with the upper part of the absorption device 3, a regeneration system is set on the first circulation circuit, th...
Embodiment 2
[0073] This embodiment provides a double regeneration and energy-saving device. On the basis of the above-mentioned embodiment 1, in order to filter and prepare the concentrated solution as the absorption liquid in the absorption device 3, it also includes a solution filtration conditioning system 7, the absorption device 3, the solution filtration and conditioning system 7, the second heat exchanger 9 and the second spray unit 3-2 are connected in sequence, so that the dilute solution is sent to the second spray unit 3 after filtration, conditioning and heat exchange -2; Specifically, the solution filtration and conditioning system 7 is composed of a cyclone + filter connected in sequence, and a solution replenishment tank 21 and a fifth pump 22 connected in sequence are arranged at the same time, and the fifth pump 22 is connected with the solution filtration and conditioning system 7 connected to replenish the solution.
Embodiment 3
[0075] This embodiment provides a double regeneration energy-saving device, on the basis of the above-mentioned embodiment 1 or 2, it also includes a third heat exchanger 10 and a fourth heat exchanger 11, the second heat exchanger 9, the third heat exchanger The heat exchanger 10 and the fourth heat exchanger 11 are connected in sequence, so that the incoming water from the heating network or the condensed water of the low-temperature heating system passes through the second heat exchanger 9, the third heat exchanger 10 and the fourth heat exchanger 11 in sequence, and is connected with the incoming water The material in the corresponding heat exchanger performs heat exchange;
[0076] Further, the sixth heat exchanger 17 and / or the seventh heat exchanger 26 communicate with the fourth heat exchanger 11 respectively, so as to transfer the exhaust condensed water of the sixth heat exchanger 17 and / or the seventh heat exchanger 26 After being sent to the fourth heat exchanger 1...
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