Device and method for sterilization and pH adjustment of circulating cooling water

Abstract

The invention discloses an electrolysis disinfection technology, and relates to a device for sterilization and pH adjustment of circulating cooling water. The device comprises an electrolytic reactionbarrel body, wherein electrodes are arranged in the electrolytic reaction barrel body; the electrodes and the wall of the electrolytic reaction barrel body form a positive electrode and a negative electrode; a scraper mechanism is also arranged in the electrolytic reaction barrel body; a scraper assembly of the scraper mechanism corresponds to the wall of the electrolytic reaction barrel body; when descaling is needed, the scraper mechanism drives the scraper assembly to move on the wall of the electrolytic reaction barrel body. According to the device, after scale deposits are settled down,the scraper assembly is used for scraping off the water deposits, and no water softeners are independently arranged, or no soft water is supplemented, so that the use cost is reduced; furthermore, thewater deposits do not need to be treated by acidification, so that no secondary pollution is caused; in a process of electrolysis by using the circulating cooling water, a sodium hypochlorite solution is automatically produced, and can achieve the effect of disinfection liquid.

Description

technical field [0001] The invention relates to an electrolytic sterilization technology, in particular to a device and method for circulating cooling water sterilization and pH adjustment. Background technique [0002] In large-scale industries, due to various heat exchange and cooling requirements, the amount of cooling water is extremely large. In order to save resources and production costs, cooling water is generally recycled, which forms the cooling water circulation pipeline and circulation. Cooling water. However, the long-term circulating cooling water in the pipeline will breed a large number of bacteria, so a sterilization reactor is installed on the circulating pipeline to clean and treat the circulating cooling water. [0003] A commonly used circulating cooling water sterilization treatment method is to use an electrolytic sterilization reactor for electrolytic sterilization, inject a dissolved salt solution into the reactor, and the saline solution contains...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that in the existing electrolytic reactors treated with circulating cooling water, scales will be formed on the cathode due to the electrolysis of dissolved salt solution, which will greatly reduce the conductivity and electrolysis efficiency, and even stop the electrolysis reaction. It will cause secondary pollution, and the technical problem of using the pole-inverting method is not good. A device and method for circulating cooling water sterilization and pH adjustment are provided. After the scale is deposited, the device uses a scraper assembly to scrape off the scale without separate configuration. Water softener or replenish soft water, reduce the cost of use, and do not need to add acid to deal with scale, and will not cause secondary pollution; use sodium hypochlorite solution automatically generated during the electrolysis of circulating cooling water to achieve the effect of bactericidal liquid

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