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Method and device for producing subacid electrolyzed water

A technology of slightly acidic electrolyzed water and electrolytic cell, which is applied in the field of water treatment, can solve the problem that slightly acidic electrolyzed water has not been reported, and achieves the effects of being suitable for mass production, convenient for procurement, convenient for transportation, storage and use.

Inactive Publication Date: 2017-02-22
SHANDONG KANGHUI WATER TREATMENT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] How to use diaphragm electrolyzer to produce slightly acidic electrolyzed water has not been reported so far

Method used

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  • Method and device for producing subacid electrolyzed water
  • Method and device for producing subacid electrolyzed water
  • Method and device for producing subacid electrolyzed water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The water production rate of the device was adjusted to 1 L / min, the electrolysis voltage was 10 VDC, and the concentration of the sodium chloride solution was 0.06%. The operation method is as follows: adjust the water production regulating valve 14 to make the water production rate 1L / min, observe the water production index, if pH>6.5; ORP: 100mg / L. Adjust the alkaline water regulating valve 11 to reduce the amount of alkaline water discharge, and at the same time adjust the proportional regulating valve 17 to increase the proportion of alkaline water entering the anode chamber 2. Through repeated adjustments, the water production index is within the acceptable range.

Embodiment 2

[0037] The water production rate of the device was adjusted to 1.5 L / min, the electrolysis voltage was 10 VDC, and the concentration of the sodium chloride solution was 0.06%. On the basis of Example 1, first adjust the water production regulating valve 14 to increase the water production rate to 1.5L / min. At this time, the pH of the production water will increase, the ORP will decrease, and the available chlorine will decrease. To maintain the slightly acidic water index, It is necessary to open the large alkaline water regulating valve 11. At this time, the pH of the produced water will decrease, the ORP will increase, and the available chlorine will increase, so that the pH is between 5.0-6.5, and the ORP>850. Adjust the proportional regulating valve 17 to make the available chlorine at within the qualified range.

Embodiment 3

[0039] On the basis of Example 2, change the electrolysis voltage to 12VDC, and keep the rest unchanged. At this time, the pH will decrease, the ORP will increase, and the available chlorine will increase. To maintain the slightly acidic water index, it is necessary to close the alkaline water regulating valve. 11. Open the large ratio regulating valve 17, close the small water production regulating valve 14, and repeat the adjustment, so that the index of slightly acidic electrolyzed water can be stabilized at the level of Example 2. On the contrary, when the electrolysis voltage adopts 8VDC, the above-mentioned regulating valve can be adjusted in the opposite direction.

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Abstract

The invention relates to a method and a device for producing subacid electrolyzed water, which belong to the technical field of water treatment. The device used by the method comprises an electrolytic cell body divided into an anode chamber and a cathode chamber by a diaphragm, wherein the diaphragm is fixed through a clapboard; an anode is arranged in the anode chamber; a cathode is arranged in the cathode chamber; the anode and the cathode are respectively connected with a power supply through guide wires; a cathode chamber inlet is arranged in the upper part of the cathode chamber; an alkaline water outlet is formed in the bottom part of the cathode chamber and is connected with an alkaline water branch line; an alkaline water adjusting valve is arranged on the alkaline water branch line; a proportional control valve is arranged on the clapboard and penetrates through the bottom part of the diaphragm; an anode chamber outlet is formed in the upper part of the anode chamber and is connected with a subacid electrolysis water branch line; a producing water adjusting valve is arranged on the subacid electrolysis water branch line. The method comprises: an electrolyzer enters the cathode chamber from the cathode chamber inlet so as to be electrolyzed, part of alkaline water produced by electrolysis enters the anode chamber through the proportional control valve so as to be electrolyzed, and the subacid electrolyzed water is obtained. According to the method and device provided by the invention, a sodium chloride water solution is adopted as the electrolyzer so as to be convenient to transport, store and use.

Description

technical field [0001] The invention relates to a method and a device for producing slightly acidic electrolyzed water, belonging to the technical field of water treatment. Background technique [0002] The principle of traditional slightly acidic electrolyzed water generation is: After softening the tap water, add electrolytic agent (NaCl referred to as "salt" and trace acid) to electrolyze in the electrolytic cell without ion diaphragm to generate microscopic acid containing hypochlorous acid molecules (HClO). Acidic electrolyzed water disinfectant, the schematic diagram of its generation principle is attached figure 1 shown. [0003] Tap water and electrolyte [NaCl and trace acid (hydrochloric acid)] are evenly mixed in a mixer in a certain proportion and then enter the electrolysis chamber without diaphragm. Chlorine gas is removed to generate an aqueous solution of chlorine-containing compounds, active oxygen, and hydrogen peroxide, which has instantaneous, broad-spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461
CPCC02F1/4618C02F2001/46185C02F2201/46115C02F2201/4618C02F2209/04C02F2209/06C02F2209/29
Inventor 李岱华高佳林王建强丁道银
Owner SHANDONG KANGHUI WATER TREATMENT EQUIP
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