Oxidation ditch guide oxygen increasing device

Abstract

The invention relates to an improvement on an oxidation ditch guide flow device, which is characterized in that: the upper end of a flow deflector is movably arranged on the pond wall of an oxidation ditch, while the lower end can be adjusted according to swing angles of the upper end; and the flow deflector also can move forward and backward. Firstly, an adjustable flow deflector can play a roleof the flow deflector to the maximum extent and avoid the defects caused by fixing and non-adjustment of the flow deflector; moreover, when the flow deflector is not needed, the flow deflector can belifted, so that the flow deflector does not become a burden because of the setting; secondly, the depth and the width of the oxidation ditch can be increased, so that the floor area of the oxidation ditch is reduced, and the land acquisition cost and the floor area are saved; thirdly, by matching of the flow deflector, the number of started aeration equipment can be reduced as required, and the operating energy consumption is lowered; and finally, the oxidation ditch is always ensured to operate in the best working state, and by the setting of meters such as an on-line current meter, a dissolved oxygen meter and the like and the automatic control of a computer, the oxidation ditch can fully automatically operate in the best working state.

Description

technical field [0001] The invention relates to the improvement of the oxidation ditch diversion device, in particular to an oxidation ditch adjustable diversion aeration device which can easily adjust the inclination angle and position of the deflector according to the needs. Background technique [0002] Oxidation ditch aeration equipment mainly provides dissolved oxygen to the ditch and promotes the flow of water in the ditch, so that the sludge, sewage and dissolved oxygen can fully contact and realize the biodegradation of sewage. Oxidation ditch aeration equipment is mainly surface aeration equipment, such as aeration turntable, aeration brush, inverted umbrella-shaped surface aerator, etc. Surface aeration equipment has a lower impact on the pushing flow and dissolved oxygen at the bottom of the oxidation ditch than on the surface many. If the flow velocity at the bottom of the ditch is too low, for example, less than 0.3m / s, it will easily lead to the deposition of ...

AI Technical Summary

Problems solved by technology

However, the submerged deflector has a fixed installation position and angle, and is installed below the water surface, so it cannot be adjusted according to the working conditions of the oxidation ditch during use.

However, in the actual treatment process, the water volume and pollutant concentration often change, and the fixed submerged deflector cannot be adjusted adaptively, so it is difficult to maintain the optimal state of the oxidation ditch operation at the time of design, resulting in unstable treatment effects

If you want to adjust, you need to put the water in the ditch under the deflector, manually adjust it and then release the water to the running state, and when the treated water changes, you need to repeat the above process, which is very troublesome, so the diversion in the actual project The plate is fixed and set according to the design without adjustment, so that the operation of the oxidation ditch cannot be in the optimal state of design, which affects the treatment effect and effluent water quality

In addition, the deflectors are fixed, and without the function of the deflectors, it will become unnecessary waste of energy consumption. For example, when using a large-diameter turntable, the flow rate in the ditch is relatively fast, for example, when it is close to 1m / s, There is basically no need for deflectors to increase the flow velocity at the bottom, so the existence of deflectors will only increase useless energy consumption

Secondly, the existing submerged deflector is installed below the water surface and cannot be adjusted. In order to avoid excessive influence on the flow velocity, its width is usually ≤900mm. Therefore, in practice, it mainly only improves the flow diversion function of the bottom flow velocity, and the oxygenation function is extremely small. , the increase in oxygenation is less than 10%, which is not energy-saving compared with the worsening circulation capacity caused by increasing the deflector

[0004] Although the additional push flow and aeration equipment can be added in the project, and the additional push flow and aeration equipment can be turned on or off according to the treatment situation, but the first is to increase the equipment investment, and the second is to increase the operating energy consumption

Images