Intelligent resin scrubbing endpoint detection device and method thereof

Abstract

The invention discloses an intelligent resin scrubbing endpoint detection device and a method thereof. A special sampling tube is connected to a water discharge main tube in the middle of a resin separation tower, an anion-exchange tower and a cation-exchange tower in the fine treatment in-vitro regeneration system of a power plant, the resin scrubbing endpoint detection device is mounted on the sampling tube, and an electromagnetic valve interlocked with the program control system of the power plant is arranged to control when the detection device is put into use. The resin scrubbing endpointdetection device online detects the quantity of particles in a scrubbing waste liquid, and transmits the switching information of the electromagnetic valve and the detection result of the quantity ofthe particles in the scrubbing waste liquid into the program control system of the power plant; a device performing resin scrubbing is determined through combining opening and closing conditions of an air inlet valve and a middle water discharge valve, and the endpoint of the resin scrubbing of the tower is determined by detecting the quantity of particles in the scrubbing waste liquid in order to determine the frequency required by tower resin scrubbing; and the device and the method have the advantages of energy saving, emission reduction, reduction of the water consumption in resin regeneration, prolongation of the periodic water production amount of a fine treatment mixed bed, and prolongation of the service life of the resin.

Description

technical field [0001] The invention relates to an in vitro regeneration system for condensed water and hydrophobic fine treatment in a power plant, in particular to an intelligent detection device and method for scrubbing end points of external regeneration resin scrubbing. Background technique [0002] The main process of resin regeneration in the domestic power plant finishing system includes the steps of air scrubbing. The invalid resin in the separation tower needs air scrubbing to remove the adsorbed corrosion products and suspended solids. The separated positive and negative resins in the positive and negative towers need air Scrub to remove finely divided resin. The purpose of air scrubbing is to remove corrosion products, suspended solids, fine particles, etc. to avoid clogging of the resin surface voids, so that the resin can fully contact with the regeneration solution and improve the regeneration effect. [0003] At present, the number of air scrubbing performed...

AI Technical Summary

Problems solved by technology

If a fixed number of times of air scrubbing is set, when the amount of corrosion products and particles in the influent is high, the scrubbing will be incomplete, which will affect the regeneration effect of the resin, and finally reduce the periodic water production of the fine treatment mixed bed, affecting The safe operation of the unit, and the increase in the number of regenerations will increase the consumption of acid, alkali and desalinated water; when the amount of corrosion products and particulate matter in the incoming water is low, the resin itself is relatively clean, and the preset scrubbing times will waste a lot of desalinated water , and will cause wear and tear of the resin, reduce the life of the resin, and produce more finely divided resin, which will increase the purchase of resin by the power plant and cause a great economic burden

[0004] Therefore, the current air scrubbing process with preset cycle times, although easy to operate, may cause problems such as reducing the periodic water production volume of the mixed bed, wasting acid and alkali and desalinated water, and reducing the life of the resin, affecting the safe operation of the unit and violating the The purpose of "energy saving and emission reduction, quality improvement and efficiency"

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