Acid water storage tank security maintenance device and safety automatic control method thereof
A technology for acidic water and security maintenance, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve problems such as tank top bursting
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Embodiment 1
[0077] Such as figure 1 As shown, a security and stability maintenance device for acidic water storage tanks,
[0078] Sour water settling tanks for receiving sour water and ammonia gas;
[0079] A sour water buffer tank, which communicates with the sour water settling tank and communicates with an external sour water stripping system;
[0080] Ammonia absorption buffer tank for receiving and absorbing ammonia, and the ammonia absorption buffer tank communicates with the acidic water sedimentation buffer tank through an ammonia water booster pump;
[0081] The purified water distribution pipe for spraying ammonia is arranged in the ammonia absorption buffer tank, and the purified water distribution pipe is connected with the purified water delivery pipeline for transporting the purified water of the acidic water stripper;
[0082] The collecting pipe is used to collect the acidic water settling tank, the acidic oil gas on the top of the acidic water buffer tank and the resid...
Embodiment 2
[0087] On the basis of Embodiment 1, the ammonia gas absorption buffer tank 4 is provided with an ammonia gas distribution pipe 20, and the ammonia gas distribution pipe 20 is communicated with one of the ammonia gas delivery branch pipes of the ammonia gas delivery main pipe. Another ammonia delivery branch of the delivery pipe communicates with the acidic water settling tank 1 .
[0088] By dividing the ammonia gas into two paths for absorption, pressure fluctuations in the acidic water settling tank can be avoided; the ammonia gas branch pipe can make the ammonia gas entering the ammonia gas absorption buffer tank 4 spray along a certain direction, so as to avoid the instantaneous diffusion of ammonia gas into the tank.
[0089] Further, the ammonia gas distribution pipe 20 is provided with two rows of exhaust holes symmetrically, and the gas injection holes form a spray angle of 30-45°, so that the ammonia gas can be sprayed to the bottom wall of the ammonia absorption buf...
Embodiment 3
[0094] On the basis of Embodiment 1 or 2, two rows of spray holes are symmetrically designed on both ends of the purified water distribution pipe 19 , and the ammonia gas distribution pipe 20 is arranged below the purified water distribution pipe 19 . Through the arrangement of water spray holes, the spraying area of purified water is enlarged, the contact area of purified water and ammonia gas is increased, and the dissolution of ammonia gas is accelerated. The purified water distribution pipe 19 can ensure sufficient contact between the purified water and the unabsorbed ammonia gas, high-efficiency mass transfer, and complete the secondary absorption of the ammonia tail gas while replenishing water in the tank.
[0095] Furthermore, the area of the spray hole is 1.2-1.5 times the cross-sectional area of the purified water distribution pipe 19 . Further guarantee the purified water output speed and spraying area.
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