Preparation device for weak acid disinfection solution on the basis of hypochlorous acid, and disinfection solution

Abstract

The invention discloses a preparation device for weak acid disinfection solution on the basis of hypochlorous acid, and disinfection solution. The preparation device comprises a liquid mixing bucket,an ion water supply path, an alkali liquor supply path, an acid liquid supply path, an online PH (Potential of Hydrogen) instrument and a controller, wherein the ion water supply path, the alkali liquor supply path and the acid liquid supply path are used for entering the liquid mixing bucket; the liquid mixing bucket is used for mixing ion water, alkali liquor and acid liquid to prepare the disinfection solution; the online PH instrument is used for carrying out real-time detection on the PH value of the disinfection solution in the liquid mixing bucket, and transmitting the real-time PH datato the controller; the proportion of the ion water, the alkali liquor and the acid liquid is calculated through the controller and is respectively fed back to an ion water metering pump, an alkali liquor metering pump and an acid liquid metering pump to regulate a liquid proportion in the liquid mixing bucket and realize the regulation of the PH value. The preparation method has the advantages ofconvenience, simple technical equipment, low price and cost saving, preparation efficiency is improved, in addition, real-time communication between the online PH instrument and a PLC (Programmable Logic Controller), calculation and the monitoring of the parameter values of finished product liquid in the liquid mixing bucket can be realized, and accurate control and intelligent control are achieved.

Description

technical field [0001] The invention relates to the field of hypochlorous acid preparation, in particular to a device for preparing a hypochlorous acid-based weakly acidic disinfection solution by using a mixed preparation method. Background technique [0002] Hypochlorous acid has the functions and functions of oxidizing agent, bleaching agent, external bactericide, disinfectant, etc. Now the preparation of hypochlorous acid aqueous solution is prepared by the principle of electrolysis, which is to put salt water (NaCI) or hydrochloric acid (HCl) in electrolysis It is electrolyzed in the tank, and the chlorine gas is mixed with water to produce hypochlorous acid water disinfectant. [0003] Disadvantages of disinfectants produced using electrolysis are generally only limited durability and shelf life of the disinfectant. The durability period of the disinfectant is about half a year. The disinfectant should also be kept in closed containers and cooled in a suitable way . ...

AI Technical Summary

Problems solved by technology

[0003] Disadvantages of disinfectants produced using electrolysis are generally only limited durability and shelf life of the disinfectant. The durability period of the disinfectant is about half a year. The disinfectant should also be kept in closed containers and cooled in a suitable way

Moreover, the preparation process of electrolytic hypochlorous acid solution is complex, with many restrictions and adjustments, and low conversion efficiency

[0004] Chinese patent CN206196781 proposes a preparation technology of hypochlorous acid water in a slightly acidic hypochlorous acid water preparation device, but the preparation of hypochlorous acid water in this technology needs to go through two mixed liquid tanks successively, and from the first mixed liquid tank to The mixed liquid in the second mixed liquid tank is not effectively metered, only the acidic liquid is measured, it is difficult to ensure that the pH value and concentration of the hypochlorous acid solution in the second mixed liquid tank reach the set value, and reach the desired hypochlorite expected by the user Acid solution, so the pH value and concentration of the solution are difficult to guarantee, and the efficiency is low

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