Control method for preparing hypochlorous acid water

Abstract

The invention discloses a control method for preparing hypochlorous acid water. The control method comprises the following steps: setting a flow threshold value; setting an electrolytic cell air pressure threshold value; obtaining a flow value of the hypochlorous acid water; obtaining an electrolytic cell air pressure value of the hypochlorous acid water; setting an electrolytic current value based on the flow value and the electrolytic cell air pressure value; and setting a single preparation time threshold and an accumulated preparation time threshold, and controlling the preparation processbased on the single preparation time and the accumulated preparation time. Based on real-time acquisition of flow and electrolytic cell air pressure in the hypochlorous acid water preparation process, an electrolysis current value is set differently, and control of single preparation time and accumulated preparation time is combined, so that preparation of excessive chlorine is prevented on the premise of ensuring constant preparation concentration of hypochlorous acid water, and the user safety is ensured.

Description

technical field [0001] This specification relates to the field of control, in particular to a control method for preparing hypochlorous acid water. Background technique [0002] Hypochlorous acid water refers to the aqueous solution containing stable hypochlorous acid molecules in the original solution. It is a new type of high-efficiency disinfectant. It is characterized by wide bactericidal spectrum, strong killing power, high safety and good environmental protection. [0003] At present, hypochlorous acid water is mostly prepared by electrolyzing water. Specifically, by electrolyzing sodium chloride solution, the reaction at the anode is: Cl ions lose electrons to prepare chlorine gas, and the cathode obtains electrons from hydrogen ions to prepare hydrogen gas. When water is combined, the following reaction occurs: H2O+Cl2=HClO+HCl, to obtain hypochlorous acid water. The obtained hypochlorous acid water can be directly used for disinfection of people or home environme...

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Problems solved by technology

[0004] However, it can be seen from the above that chlorine gas will be indispensable in the electrolysis process, and part of the chlorine gas will not combine with water to produce hypochlorous acid. Stored in a container or delivered directly to the user with the water flow, when the user uses hypochlorous acid water, they will inevitably be exposed to excessive chlorine gas, which will cause certain harm to the user's health, such as the mucous membrane of the eyes or respiratory tract cause damage

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