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Releasing device for air dissolved solution

A technology of dissolved air release and release device, which is applied in the direction of flotation water/sewage treatment, etc., and can solve problems such as easy blockage, complex structure of dissolved air releaser, and high cost

Active Publication Date: 2014-12-03
GANSU GOLDEN BRIDGE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problems of complex structure, narrow flow cross section, high cost and easy blockage of the existing dissolved air releaser

Method used

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  • Releasing device for air dissolved solution
  • Releasing device for air dissolved solution
  • Releasing device for air dissolved solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: see figure 1 , figure 2 , a kind of gas-dissolved liquid releasing device, comprises that the gas-dissolved liquid pipe joint 1 is provided with dissolved gas release nozzle 2, and described dissolved gas release nozzle 2 is provided with spray hole 2-1 at the top, spray hole 2-1 The jet flow angle is 110°, the angle between the nozzle hole 2-1 and the inner end surface is 115°, and the inner cavity of the dissolved air release nozzle is provided with a guide vane 2-2, and the guide vane 2-2 is composed of the same rotating vane composition.

[0017] The expansion diagram of described guide vane 2-2 is saddle-shaped, and the depression in its part is an isosceles triangle, and the vertex angle of the isosceles triangle is 25 °, and the two peaks are symmetrical guide vanes, and the outer sides of the guide vanes The edge is composed of a straight line segment and a smooth curve segment, and the guide vane is tangent to the inner wall of the pipe after bein...

Embodiment 2

[0021] Example 2: see figure 1 , figure 2 , a kind of gas-dissolved liquid releasing device, comprises that the gas-dissolved liquid pipe joint 1 is provided with dissolved gas release nozzle 2, and described dissolved gas release nozzle 2 is provided with spray hole 2-1 at the top, spray hole 2-1 The jet flow angle is 115°, the angle between the nozzle hole 2-1 and the inner end surface is 125°, and the inner cavity of the dissolved air release nozzle is provided with a guide vane 2-2, and the guide vane 2-2 is composed of the same rotating vane composition.

[0022] The expansion diagram of the guide vane 2-2 is saddle-shaped, the low concave part in the middle is an isosceles triangle, the apex angle of the isosceles triangle is 30 °, and the two peaks are symmetrical guide vanes, and the outer surface of the guide vanes The edge is composed of a straight line segment and a smooth curve segment, and the guide vane is tangent to the inner wall of the pipe after being bent...

Embodiment 3

[0026] Embodiment 3: A kind of gas-dissolved liquid release device, comprises that the dissolved gas release nozzle 2 is arranged on the gas-dissolved liquid pipe joint 1, and the described gas-dissolved release nozzle 2 is provided with spray hole 2-1 at the top, and the spray hole 2-1 The jet flow angle is 112°, the angle between the nozzle hole 2-1 and the inner end surface is 120°, and the inner cavity of the dissolved air release nozzle is provided with a guide vane 2-2, and the guide vane 2-2 is composed of the same Consists of rotating blades.

[0027] The expansion diagram of the guide vane 2-2 is saddle-shaped, the low concave part in the middle is an isosceles triangle, the apex angle of the isosceles triangle is 30 °, and the two peaks are symmetrical guide vanes, and the outer surface of the guide vanes The edge is composed of a straight line segment and a smooth curve segment, and the guide vane is tangent to the inner wall of the pipe after being bent at 45 degre...

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Abstract

The invention relates to a water treatment facility, and especially to a releasing device for an air dissolved solution of a dissolved air floatation method. Main characteristics of the air dissolved solution releasing device are that: a dissolved air releasing nozzle is arranged on an air dissolved solution pipe joint, the top of the dissolved air releasing nozzle is provided with spray orifices, jet flow angle of the spray orifices is 110 to 115 DEG, internal end-face angle of the spray orifices is 115 to 125 DEG, guide vanes are arranged inside the internal chamber of the dissolved air releasing nozzle, and the guide vanes are assembled by identical rotation vanes. Advantages are that: generated bubbles are small and uniform in size, large in density and stable for flotation. The device of the invention generates microbubbles with the same microstructure as that generated by original traditional air dissolved solution releasing devices. Problem that the existing releasing device is easy to be blocked is solved, and practicality is improved. The releasing device is simple in structure, small in size, and low in cost, and possesses high cost performance.

Description

Technical field: [0001] The invention relates to a water treatment device, in particular to a device for releasing a dissolved air liquid in a dissolved air flotation method. Background technique: [0002] The pressure dissolved air flotation method is to inject a large number of microbubbles into the water to make them adhere to solid or pollutant particles with a density close to that of water in water or wastewater to form an air floating body with a density lower than that of water, which floats to the water surface under the action of buoyancy A water treatment technology that forms scum and separates solid-liquid or liquid-liquid. It is widely used in the treatment of industrial wastewater such as oil refining, chemical industry, papermaking, tanning, printing and dyeing, as well as the treatment of urban drinking water and domestic sewage. [0003] The pressure dissolved air flotation method releases the supersaturated dissolved air liquid produced by the dissolved a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/24
Inventor 王刚和小平邢秀兰
Owner GANSU GOLDEN BRIDGE GRP CO LTD
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