Electrochemical hardness removal device and method based on vibration enhanced inverted descaling

Abstract

The invention discloses an electrochemical hardness removal device based on vibration enhanced inverted descaling. The electrochemical hardness removal device comprises an electrolysis device, a filter tank and a buffer tank unit which are sequentially connected, wherein a raw material inlet and a raw water inlet tube are arranged on the lower part of the electrolysis device; a vibration generatoris arranged on the top or the side surface of the electrolysis device; a slag discharge hole is formed in the bottom of the electrolysis device; inlets and outlets of the electrolysis device, the filter tank and the buffer tank are set to charge below and discharge above; the electrolysis device sequentially comprises an electrode region, a water distribution region and a slag discharge region from top to bottom; the top of the electrode region is fixed and is uniformly distributed with cathodes and anodes of a plate type, a tow type or other forms; spacing between edges of the cathodes and the anodes is greater than 6 mm; and the cathodes are made of titanium or alloys or other valve type metals or alloys, and the wall surfaces of the cathodes are smooth. The electrochemical hardness removal device can effectively solve the problems that scale layers on the surfaces of the cathodes are difficult to clear, the cathode area is small and equipment occupied area is great in a conventional electrochemical hardness removal process.

Description

technical field [0001] The invention relates to an electrochemical dehardening device and method based on vibration-enhanced self-cleaning of inverted poles and belongs to the field of electrochemical dehardening. Background technique [0002] The fouling problem of heat exchange equipment widely exists in various fields such as petrochemical, power plant, oil field injection and production, food, paper making, desalination, semiconductor manufacturing and heating. Scaling often leads to problems such as pipeline blockage, reduced heat transfer efficiency, and under-scale corrosion, resulting in abnormal shutdown of equipment and huge waste of energy and materials, which greatly increases production costs and maintenance costs. Due to the water quality, among the domestic heat exchanger fouling, the calcium-magnesium crystallization fouling is the most typical, which is more harmful. To alleviate equipment fouling, researchers have tried various strategies. At present, the...

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Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides an electrochemical descaling device and method based on vibration-enhanced descaling of the inverted electrode, which solves the difficulty of cleaning the scale layer on the cathode surface in the traditional electrochemical descaling process, the small effective cathode area and the The problem of large equipment footprint

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