Flocculation reaction framed bent device equipped with flexibly-connected impellers

An impeller and bent frame technology is applied in the field of flocculation reaction bent frame devices, which can solve the problems of difficulty in adjusting flow changes and head loss changes, and achieve the effect of reducing head loss and ensuring stability.

Inactive Publication Date: 2013-11-06
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0007] Aiming at the defect that the existing grid flocculation reaction device is difficult to adjust the change of water head loss caused by the change of flow rate, the purpose of the present invention is to provide a flocculation reaction racking device equipped with soft-connected impellers. The impeller realizes the control of head loss

Method used

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  • Flocculation reaction framed bent device equipped with flexibly-connected impellers
  • Flocculation reaction framed bent device equipped with flexibly-connected impellers
  • Flocculation reaction framed bent device equipped with flexibly-connected impellers

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Embodiment Construction

[0023] The core idea of ​​the present invention is to design a flocculation reaction racking device that resists head loss instability, which can not only resist head loss changes caused by flow changes, but also increase floc turbulence. Its working principle is to install a flexibly connected impeller on the flocculation reaction racking device. When the flow rate is small, the water flow passes through the impeller to make the impeller rotate, resulting in turbulence, causing small flocs to condense into large flocs and produce head loss. ; When the flow rate is large, the water flow not only pushes the impeller to rotate, but also generates an upward thrust on the impeller, which reduces the radius of rotation of the impeller and increases the distance between the blades, increasing the cross-sectional area of ​​the water flowing through it, thereby reducing the flow velocity and water head. loss, reduce the energy consumption of flocculation, which is more conducive to the...

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Abstract

The invention discloses a flocculation reaction framed bent device equipped with flexibly-connected impellers. The device comprises framed bents composed of a plurality of lattice bars which are parallel to each other. The framed bents are fixed by a framework. A plurality of flexibly-connected impellers are installed on each lattice bar. Each impeller is composed of a main shaft, a wheel hub and blades. The blades and the wheel hub are connected through springs. Under the impact of current, blades drive the wheel hub to rotate around the main shaft. The framed bents are installed in pairs. The lattice bars on upper and lower framed bents are arranged in a staggered pattern. Impellers on each framed bents are arranged side by side. That is to say, the maximum rotation radiuses of adjacent impellers tangent to each other, and the installation point of each impeller on the lower framed bent is right facing the central gap in the middle of four impellers on the upper framed bent. When current flows through the impellers, the impellers rotate so as to guarantee turbulent fluctuation performance of flocculation. When the flow increases, the rotation radius of the impellers will be reduced under the impact force of current, flow area is increased, and flow velocity is reduced. Thus, head loss is decreased, and it is ensured that head loss is basically stable when the flow increases.

Description

technical field [0001] The invention relates to a device in the technical field of water supply, in particular to a flocculation reaction racking device equipped with soft-connected impellers. Background technique [0002] The flocculation device has been continuously improved through the stirring device of the mechanical flocculation tank, the partition device of the partition flocculation tank and the folding plate device of the folding plate flocculation tank, and has developed to the grid device of the current grid flocculation tank. The micro flocs with flocculation performance collide with each other under the action of external force to achieve better flocculation effect. [0003] The mechanical flocculation tank is to install a stirrer inside each flocculation tank to stir the water flow. In order to meet the requirements of floc formation, the stirring intensity of the agitator in each flocculation tank is gradually reduced from the beginning to the end. The advan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 卢金锁赵静刘劼
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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