A pressure swing adsorption device and effective gas recovery method
A technology of pressure swing adsorption and adsorption tower, applied in the field of pressure swing adsorption, which can solve the problems of unfavorable effective resource full utilization, lower effective gas recovery rate, lower effective gas recovery rate, etc., to achieve full utilization, increase recovery, increase The effect of recovery
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Embodiment 1
[0027] Please refer to figure 1 , this embodiment provides a pressure swing adsorption device 1000 . The pressure swing adsorption device 1000 includes an adsorption unit 100 and an effective gas recovery unit 200 . The effective gas recovery unit 200 is used for recovering the reverse discharge gas at the beginning of the reverse discharge process of the adsorption unit 100 , and is also used for recovering the flushing gas at the end of the flushing process of the adsorption unit 100 .
[0028] The adsorption unit 100 includes an adsorption tower group, a product gas pipeline 120 , a final pressure pipeline 130 , a forward gas discharge pipeline 140 , a flushing gas inlet pipe 150 , a raw gas pipeline 160 , a reverse gas discharge pipeline 170 and a flushing gas outlet pipe 180 .
[0029] The adsorption tower group includes a plurality of adsorption towers arranged side by side, namely the first adsorption tower 111 , the second adsorption tower 112 , the third adsorption t...
Embodiment 2
[0088] see Figure 4 , this embodiment provides a pressure swing adsorption device 2000 . Compared with the pressure swing adsorption device 1000, the difference is that the recovery port of the effective gas collector 210 of the pressure swing adsorption device 2000 is not connected with the reverse gas discharge pipeline 170 or the flushing gas outlet pipe 180, but is connected with the first recovery pipe respectively. The passage 190 is connected and selectively communicated with the second recovery pipe 190a. A first recovery pipeline valve 197 is connected between the recovery port of the effective gas collector 210 of the pressure swing adsorption device 2000 and the first recovery pipeline 190, and the recovery port of the effective gas collector 210 of the pressure swing adsorption device 2000 is connected to the second recovery pipeline 190. A second recovery pipeline valve 197a is connected between the recovery pipelines 190a.
[0089] Wherein, the first recovery ...
Embodiment 3
[0097] see Figure 5 , this embodiment provides a pressure swing adsorption device 3000 . Compared with the pressure swing adsorption device 1000, the difference is that the effective gas return pipe 230a of the pressure swing adsorption device 3000 is not connected with the raw gas pipeline 160, but is connected and selectively communicated with the second interface of each adsorption tower.
[0098] Specifically, the effective air return pipe 230a has an effective air return pipe branch 31b for connecting with the second interface pipe 111a and an effective air return pipe branch valve 131b, and an effective air return pipe for connecting with the second interface pipe 112a. Delivery pipe branch 32b and effective air return delivery pipe branch valve 132b, effective gas return delivery pipe branch 33b for connecting with the second interface pipe 113a and effective air return delivery pipe branch valve 133b, for connecting with the second interface pipe 114a The effective g...
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