CN100540747C - Improved automatic high oxidation potential disinfection water generator - Google Patents

Abstract

The improved full-automatic high oxidation potential disinfectant water generating machine has two identical intermittent electrolytic cells, which alternately electrolyze to produce disinfectant water. The auxiliary time of water inflow and outflow is all repeated with the electrolysis time, so the output of disinfectant water is large. increase in magnitude. The required ORP value is obtained by adjusting the electrolysis time with a fixed salt concentration, which simplifies the control technology.

Description

Improved automatic high oxidation potential disinfection water generator

Field of the invention: The present invention relates to equipment for generating high oxidation potential disinfectant water by electrolysis, which belongs to disinfectant production equipment.

Background technique:

ZL01210497.3 patented fully automatic high oxidation potential disinfectant water generator uses ORP feedback to control the quality of disinfectant water. Its control technology is complicated and prone to failure, and the output of a single electrolyzer is not high.

Purpose of the invention: The fully automatic high oxidation potential disinfection water generating machine of the present invention is similar to the machine of ZL01210497.3, and is also composed of water inlet, water outlet system, electrolysis system, control system and power supply, but adopts two identical intermittent electrolysis The tanks are electrolyzed in turn, and only one power supply and control system are used to increase the output of disinfected water. The ORP value is changed by changing the electrolysis time with a fixed salt concentration, which simplifies the control and makes it easier to guarantee the quality.

Technical solution: the above invention can be realized by the system shown in FIG. 1 .

Symbols in the figure 1, metering pump 2, salt water tank 3, V1 4, electrolyzer 5, V26, v3 7, V4 8, tap water inlet pipe 9, V5 10, disinfection tank 11, ORP sensor 12, waste water discharge pipe 13, L1 14, L2 15, L316, power supply

V1, V3, V4, V5 are normally closed solenoid valves

L1, L2, L3 are liquid level switches

The valve and liquid level switch of the second electrolytic cell are not marked in the figure, if quoted in the text, add ",", such as V4', L3', etc., the two are interlocked and cannot be opened at the same time.

The intermittent electrolytic cell 4 is separated by a microporous ceramic diaphragm in the middle, with the anode on the left and the cathode on the right. The water inlet valve V4 and the brine adding valve V1 are both on the anode side. Tap water and brine are mixed and overflow into the cathode side through the diaphragm. The liquid level switch L3 controls the liquid level, and when it is turned on, V4 and V1 are closed. The anode outlet pipe of the electrolyzer flows into the disinfection tank 10 through V3. The tank is equipped with upper and lower liquid level switches L2 and L1 to ensure that the liquid level in the tank is kept between L1 and L2. An ORP sensor is also installed in the tank to display the ORP value of the disinfectant water on the panel. The cathode effluent is concentrated alkaline water, which is discharged through V5, but it can also be collected and utilized.

The power supply 16 has two DC output ends after rectifying the alternating current, which are respectively connected to the two electrolyzers.

During the electrolysis process, the surface of the cathode plate will be polluted, and it needs to be cleaned by inverting the electrode after working for a period of time. When cleaning, the water from both poles must be discharged, so the cathode side is also equipped with a drain valve V2.

The control system can adopt a programmable controller to realize fully automatic control. The procedure used is as follows:

The first electrolytic cell 1, V4, V1 are turned on, the metering pump 1 is turned on, and it is turned off after inputting a certain amount of brine. L3 touches V4 and V1 off, and the water intake ends. (required time t1).

2. DC power is applied, and the electrolysis is switched after 2 minutes, and the electrolysis ends.

3. V3 and V5 are turned on for t3 minutes and then turned off, and the water discharge ends.

4. Reciprocating cycle 1-3.

The second electrolyzer During the electrolysis of the first electrolyzer, the water is discharged first, and then the water is entered. Because t1+t3<t2, the process of water discharge and water inflow can be completed within the electrolysis time, so the two electrolyzers continuously alternately perform water inflow and inflow. Electrolysis and water discharge are carried out alternately with the first electrolyzer in turn.

Produce disinfectant water through electrolysis until the upper liquid level switch L2 of the disinfection tank is turned on, the DC power supply is disconnected, and the cycle electrolysis is terminated. Take disinfectant water and when the liquid level drops to the lower liquid level switch L1 is turned on, the DC power supply is turned on again, and the cycle electrolysis is resumed until the upper liquid level switch L2 is turned on again.

The electrode cleaning program is as follows: (this program starts when off work)

1. Inversion of DC power supply

2. V4 is turned on, L3 is connected, and V4 is turned off

3. After the power supply is connected to the first electrolyzer for electrolysis of t4, it is switched. At the same time when electrolysis starts, V2'V5' turns on t3 and then turns off, then V4' turns on and L3' turns on and then turns off

4. After the second electrolyzer starts to electrolyze t4, reverse the polarity, switch, and close. At the same time when electrolysis starts, V2 and V5 turn on t3 and then turn off

5. V2'V5' turns on t3 and then turns off

6. Main power off

Note: Do not add salt water when cleaning the electrode

Example:

According to the equipment shown in Figure 1. The volume of the electrolyzer is 20 liters, and the DC voltage of the power supply is 190V. The water inflow time during equipment debugging is 1 minute and 20 seconds. The water outlet time is 2 minutes and 30 seconds, the electrolysis time is 4 minutes, and the salt concentration is 0.1%. The obtained disinfection water ORP is +1170mv. The water output is 150 liters per hour. The liquid level on the disinfection sink is 100 liters. The lower liquid level is 60 liters. According to the high oxidation potential disinfection water, when ORP>+1000mv, all microorganisms can be killed 100%, so the quality of the disinfection water obtained by the present invention without complex control technology is also guaranteed.

Claims (3)

1, a kind of high oxidation electric potential sterilized water of being made up of water inlet, outlet system, electrolytic system, Controlling System and power supply generates machine, it is characterized in that electrolytic system is made up of two identical intermittent electrolyzers, two electrolyzers are with the electrolysis that continues in turn of same power supply and Controlling System.

2, by the described sterilization hydrogenesis machine of claim 1, it is characterized in that an electrolyzer when electrolysis another electrolyzer then in water outlet and water inlet.

3,, it is characterized in that changing the ORP value with the mode that fixedly adds the constant change electrolysis time of salt concn by the described sterilization hydrogenesis machine of claim 1.

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