Method for evenly distributing water in shallow air flotation pool

Abstract

The invention discloses a shallow air floatation tank water uniform distribution method. According to the shallow air floatation tank water uniform distribution method, a plurality of water distribution pipes are arranged along the radial direction of an air floatation tank so as to achieve equal surface load of the service range of each water distribution pipe, and reduce radial flowing of water body in the air floatation tank; wherein the service range of each water distribution pipe is used for referring a circular zone a corresponding water distribution box moves across when the water distribution pipe rotates around the axis of the air floatation tank for one circle; the surface load of the service range of each water distribution pipe is used for referring the specific value of water distribution amount of the water distribution pipe in a unit time to the service range of the water distribution pipe; the diameters of the water distribution pipes are arranged to be equal, or are arranged to be different, and from inside to outside, the diameters of the water distribution pipes are increased gradually. The shallow air floatation tank water uniform distribution method is capable of reducing water distribution nonuniformity, especially reducing radial flowing of water flow in the air floatation tank, and realizing real zero-speed flotation via a synchronous rotation bridge stand provided with the water distribution pipes and isolating plates.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a method for uniform water distribution in a shallow air flotation tank that ensures uniform water distribution to the greatest extent and reduces water disturbance. Background technique [0002] Shallow air flotation is an important method of dissolved air flotation, and its device integrates coagulation, air flotation, scum skimming, sedimentation, and mud scraping. The shallow air flotation pool is cylindrical in shape as a whole, with a compact structure and a relatively shallow pool. The main body of the device is composed of five parts: air flotation tank, rotating water distribution mechanism, dissolved air release mechanism, frame mechanism, water collection mechanism, etc. The water inlet, water outlet and scum discharge outlet are all concentrated in the central area of ​​the pool body. The water distribution mechanism, water collection mechanism, and dissolved air relea...

AI Technical Summary

Problems solved by technology

Under a certain pressure, the water flow velocity of each water distribution pipe is the same, and the flux is the same, but the service area of ​​each water distribution pipe is different, and the service area of ​​the water distribution pipe farther from the center of the pool is larger (the difference between the outer and inner radii is equal Concentric rings, the area of ​​the outer ring is larger than the inner ring), in this case, the water from each water distribution pipe has the fastest flow rate in the inner ring, and the slower the flow rate toward the outer ring, the overall water distribution is uneven, Moreover, the mutual disturbance is serious, which affects the zero-speed flotation effect

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