KR20170013749A - Sterilizing water producing control system and a control method therof - Google Patents

Abstract

The present invention relates to a sterilized water production control system and a method for controlling the same, which are capable of automatically controlling voltage and forcibly stopping a system. The sterilized water production control system comprises: a sterilized water generation module which is installed together with a T-shaped pipe among a hydraulic pressure sensor, a static pressure valve and a faucet disposed on a water pipe introduced into a home and connected to a faucet; a chemical reactor which includes an electric conductivity sensor configured to measure an electrolysis level of sterilized water and composed of a pair of electrodes, and a chlorine sensor configured to measure chlorine concentration of a sample and composed of a pair of electrodes; and a control unit which includes microprocessors configured to set an allowable residual chlorine value (m) of sterilized water and time in a control input unit adapted to input control variables for control of a system to the microprocessors and in the chemical reactor and, simultaneously, display the allowable residual chlorine value (m) and the time on an indicator, to determine an electric conductivity measurement electric potential (n) for appropriate generation of sterilized water, and to activate operation of the electrodes of the sterilized water generation module when a voltage Xn corresponding to the electric potential n is detected, allow normal operation of the system when a current value of the electric potential n corresponds to an upper limit, and stop the operation of the system when a current value of the electric potential n corresponds to a low limit.

Description

[0001] The present invention relates to a sterilizing water producing control system and a control method thereof,

The present invention relates to a sterilization water generation control system for automatically controlling a voltage applied to an electrolysis electrode according to an impurity concentration of electrolytic water so as to stably produce sterilized water and forcibly stopping the system in a momentary abnormal state, .

A representative example of the prior art is disclosed in Korean Patent Registration No. 10-1015621 (Feb. 10, 2011) entitled " instant sterilization disinfection water producing device ". At this moment, sterilized disinfection water generating device is used for water (212L / min) in the water with the flow rate of the water, so that sterilized disinfected water can be continuously and uniformly generated so that it is reduced to water that can be consumed after a few minutes, It has its purpose.

To this end, the instant sterilization and disinfection water producing apparatus 100 includes a positive (+) electrode plate 112a and a negative electrode plate 112b alternately stacked with a positive (+) electrode 114a and a negative (- The positive electrode plate 114a is electrically connected to the positive electrode plate 112a and the positive electrode plate 114a is fixed to the electrolysis chamber 111b of the main body housing 111 by the negative electrode plate 114a, And a sterilizing and disinfecting water generating module 110 for causing the negative electrode plate 114b to be in electrical contact with the negative (-) electrode plate 112b.

The instant sterilization and disinfection water generating module 110 is supplied with raw water to be sterilized and disinfected through the inlet 111a and the supplied water is instantaneously sterilized by passing through the multi-layered electrode plates 112a and 112b, 116a.

The static pressure / flow rate sensing means 120 senses the pressure drop and the flow rate within the channel tube 109 and turns on / off the operation of the sterilizing water disinfection water generating module 110. The constant pressure valve 122 and the sterilizing water disinfection water generating module 110 A static pressure valve 122 for sensing the pressure of the influent water flowing into the flow rate sensor 124, and a flow rate sensor 124 for sensing the flow rate.

The filter 130 is installed on one side of the water pipe 109 to filter the foreign substances contained in the inflow water flowing into the sterilized disinfecting water generating module 110 so that the sterilization disinfection water generating module 110 can be easily electrolyzed.

The power supply unit 140 cross-supplies the positive and negative power supplies to the sterilized disinfection water generation module 110 under the control of the controller 150 so as not to interfere with the corona discharge and the electrolysis reaction, , 112b) to remove the chloride attached thereto.

The control unit 150 controls the flow rate of the flow rate of the fluid to be supplied to the control unit 150 based on the sensed signals of the static pressure valve 122 and the influent flow rate sensing signals of the flow rate sensor 124 when the pressure drop is generated in the static pressure / And controls the operation of the disinfection / disinfection water generation module 110 by controlling the power supply unit 140.

However, in this instant disinfection and disinfection device, the control unit cross-feeds the positive and negative power supplies to the positive and negative electrode plates in order to remove the impurities of the influent, that is, the chloride, The operation of the sterilizing disinfection water generating module is controlled by controlling the power supply part through a signal according to the pressure drop or the flow rate of the sterilization disinfection water. However, the specific structure for the operation is not clearly disclosed, It is possible to identify a technique for instantly activating sterilized disinfectant water in the process of ionizing water or bonding ionized water molecule elements.

Therefore, in connection with such instantaneous disinfection and disinfection water generating apparatus, the power supply voltage optimized for the impurities to be removed in the disinfection disinfection water generating module is applied to the electrodes, and when the impurities are out of the processing limit, It is desirable if safety is planned.

The main object of the present invention is to provide a sterilization water generation control system for automatically controlling the voltage applied to the electrolysis electrodes according to the impurity concentration of the electrolytic water so as to stably produce sterilized water and forcing the system to stop in a momentary abnormal state, And to provide a control method thereof.

It is another object of the present invention to provide a sterilizing water generating module in which a power supply voltage optimized for an impurity to be removed is applied to electrodes and the system is automatically stopped when impurities are out of the processing limit or in an abnormal state, A sterilization water generation control system and a control method thereof.

The sterilization water generation control system according to the present invention is characterized in that the sterilization water generation control system according to the present invention is a sterilization water generation control system according to the present invention, A sterilizing water generating module capable of generating a sterilizing water installed together with the hydraulic valve and the static pressure valve and the tap water transfer stopping the system according to the control of the control unit described later or the T-tube; A first solenoid valve for supplying sterilized water from the T-tube, a second solenoid valve for supplying a sample for measuring the sample concentration from a sample supply container having a sample of hydrochloric acid, A three-way valve, a chemical reaction tank having a conductivity sensor made of paired electrodes for measuring the electrolysis of sterilized water, and a chlorine sensor serving as a paired electrode for measuring the chlorine concentration of the sample; An AD converter that converts the analog signal of the sensing current measured from the conductivity sensor and the chlorine sensor into a digital signal, a current-to-voltage converter that converts the digital current signal of the AD converter into a voltage signal, A digital signal input / output unit receiving a signal from a hydraulic pressure sensor that senses the hydraulic pressure due to the generation of the control signal, and outputting an operation on / off control signal to the first, second and third solenoid valves, a control input unit for inputting control variables for system control (M) and time of the sterilized water in the chemical reaction tank are set first, and at the same time, the residual chlorine tolerance value (m) and time are displayed on the indicator, the conductivity measurement potential (n) for generating the sterilization water titration is determined, When the voltage Xn corresponding to n is detected, the electrodes of the sterilizing water generating module are operated. When the potential n current value is at the upper limit value, And a microprocessor which stops the operation of the system when the lower limit is reached.

Conductivity and chlorine sensors measure the amount of current flowing in the sterilized water between their electrodes and the amount of current that varies with the amount of chlorine in the hydrochloric acid, which is a typical dissolved matter in the generated water.

 The chemical reaction tank is composed of a first discharge pipe for regulating the level of the supply sterilization water and a second discharge pipes for suspending the system or exchanging sterilized water, and the second discharge pipe is opened and closed by the third solenoid valve.

The microprocessor further includes a semiconductor switch unit including an analog multiplexer and a plurality of semiconductor switches on the output side. According to an output control signal of the microprocessor, the analog multiplexer switches a semiconductor switch corresponding to an appropriate voltage applied to the electrodes of the sterilizing water generating module .

The semiconductor switch unit includes a variable transformer and outputs an AC power applied according to a selection of any one of the semiconductor switches and applies the AC power to the AC-DC converter to convert the AC voltage of the selected voltage into a DC voltage. And (-) electrodes to generate sterilized water.

The control method of the sterilization water production control system sets the residual chlorine allowance value (m) and time of sterilized water in the chemical reaction tank at the same time, displays the residual chlorine tolerance value (m) and time in the indicator, and determining the potential (n), to be detecting a voltage Xn much as potential n and voltage Xn is detected by controlling the second valve so as to increase the concentration of chlorine, if not manil voltage Xn or more and, if the voltage Xn is more than the voltage Xn The electronic switch of the corresponding semiconductor switch unit is connected and turned on to display an n value on the display unit. Then, during the operation of the system, it is determined that the potential n current value is the upper limit. And if it is not the upper limit, it is determined that the current value corresponding to the potential n is the lower limit, and if it is the lower limit If the stem is stopped and the semiconductor switch corresponding to the semiconductor of the semiconductor switch unit is turned on, the AC current corresponding to the potential n of the AC-DC converter is applied to the AC-DC converter through the variable transformer, And the chlorine tolerance m is determined according to the amount of the impurities in the generation module of the sterilized water. In this case, And determines whether or not the residual chlorine tolerance m is equal to the set value. If not, it is determined whether the increment of the potential n value is possible. If the increment is possible, Continue to operate and stop the system if not possible.

When the potential n is higher than the upper limit or lower than the lower limit in the step of determining the increment of the potential n value, the microprocessor determines that the system is abnormal, and controls the microprocessor to forcibly stop the semiconductor switch.

On the other hand, if the residual chlorine tolerance m is equal to the set value, the time lapse is monitored. If the set time has not elapsed, the operation of the system is maintained, and if the time elapses, Temporarily perform normal operation, otherwise shut off the system by shutting off the positive pressure valve.

As described above, the present invention changes the power applied to the sterilizing water generating module based on the conductivity set value potential n and the residual chlorine vanity m to effectively generate sterilized water, and confirms and protects the abnormal state of the system.

BRIEF DESCRIPTION OF THE DRAWINGS The following is a brief description of the drawings relating to embodiments of the present invention.
FIG. 1 is a block diagram of a sterilizing water producing apparatus having a sterilizing water generating module according to the prior art,
2 is a block diagram showing the entire sterilizing water production control system according to the principle of the present invention,
3 is a block diagram showing a control unit of the sterilization water generation control system according to the principles of the present invention,
4 is a flow chart showing a control method for controlling the sterilization water generation control system of the present invention.

The present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the sterilization water generating system 10 can be conveniently installed in a place where it is necessary to use sterilized water such as a kitchen in general, and can be conveniently used. Of course, Of sterilized water.

The sterilizing water generating system 10 is provided with a sterilizing water generating module 11 capable of generating sterilizing water and is installed in a water pipe 12 connected to a water inlet 13 to be introduced into the household. The sterilizing water generating module 11 may be a sterilizing water generating module disclosed in the above-mentioned Japanese Patent Laid-Open No. 10-1015621 or a sterilizing water producing device disclosed in the above-mentioned Japanese Patent No. 10-1383816.

The sterilizing water generating module 11 is provided with a filter 14 installed at the front end of the inlet to which the tap water flows and a hydraulic pressure sensor 15 for measuring the hydraulic pressure corresponding to the flow of the sterilizing water generated at the rear- A static pressure valve 16 for stopping the system in accordance with the control of the microprocessor 40 described below is provided when the pressure of the water tank 15 is lowered, 17 are installed.

The T-shaped pipe 17 is provided with a first electromagnetic valve 18 in a supply pipe 19 for receiving sterilized water passing through the water inlet 13.

The chemical reaction tank 30 is provided with a conductivity sensor 21 as a paired electrode for receiving a sterilized water passing through the supply pipe 19 from the sterilization water generating module 11 and measuring the electrolytic degree of the sterilized water, A chlorine sensor 22 which is a paired electrode for measuring the chlorine concentration of hydrochloric acid (HCL), which is used as a sample (for example, a well-known well-known one) (Not shown). Here, the conductivity sensor 21 and the chlorine sensor 22 measure the amount of current flowing in the sterilized water between their electrodes and the amount of current varying with the chlorine amount of hydrochloric acid, which is a typical impurity dissolved in the generated water.

The chemical reaction tank 30 has a sample supply container 23 storing a predetermined amount of sample and a second solenoid valve 24 for receiving the sample from the sample supply container 23. In addition, the chemical reaction tank 30 includes a first discharge pipe 25 for regulating the level of the supply sterilized water, a second discharge pipe 26 for stopping the operation of the system or exchanging sterilized water, And a third solenoid valve 27 that closes. Here, the first, second, and third solenoid valves 18, 24, 27 are operated and controlled by the microprocessor 40.

The control unit 20 is shown in detail in Fig. 3, and the same components as those in Fig. 2 are denoted by the same reference numerals, and the operation and configuration of the present invention will be described.

The control unit 20 receives the sensed current amount signals measured from the conductivity sensor 21 and the chlorine sensor 22 by the AD converter 41 to convert the analog signals into digital signals and apply them to the current- And converts it into a digital voltage signal. At this time, a voltage signal of 0V to 5V is inputted to the microprocessor 40, which is finally classified into five levels.

On the other hand, the hydraulic pressure sensor 15 senses the flow rate indicative of the hydraulic pressure due to the generation of the sterilizing water from the sterilizing water generating module 11 and inputs it to the digital signal input / output unit 43, That is, the hydraulic pressure signal, to the microprocessor 40. The microprocessor 40 receives the current flow signal,

The control input unit 31 inputs control variables for system control, that is, a set value, that is, a residual chlorine tolerance value (m), an operating time, or a system operating time to the microprocessor 40.

The power supply 32 applies power to all components of the system as well as the microprocessor 40. The indicator 33 indicates the conductivity measurement potential n and the residual chlorine tolerance m in accordance with the control from the microprocessor 40.

The microprocessor 40 further includes an analog multiplexer 45 on the output side and any one of the semiconductor switch portions 51 constituted by a plurality of semiconductor switches connected to the output terminal of the analog multiplexer 45 in accordance with the output control signal thereof Select the switch. Here, the semiconductor switch selects the voltage Xn corresponding to the set potential n. The microprocessor 40 is also connected to the digital signal input / output unit 42 via a first solenoid valve, a second solenoid valve, and a third solenoid valve 18, 24, 17, respectively, The water sample is collected, the reagent is supplied, and the sampled sterilized water is discharged to empty the chemical reaction tank 30. [

The variable transformer 52 selects the output of the transformer T from the AC power of the voltage Xn to be applied in accordance with the selection of one of the switches in the semiconductor switch unit 51 to be applied to the AC-DC converter 53. The AC-DC converter 53 converts the AC voltage of the selected voltage into a DC voltage and applies it to the (+) and (-) electrodes provided in the sterilizing water generating module 11 to generate sterilized water.

The sterilization water production control system 10 according to the present invention configured as above operates by the control method as shown in Fig.

In step S1, the residual chlorine tolerance m and the time (Time or Term) of the sterilized water in the chemical reaction tank 30 are first set in order to operate the system and prepare the operation of generating sterilized water. In step S2, the display unit 33 displays the residual chlorine tolerance value m and the time.

In step S3, it is determined whether water or sterilized water flows through the water pipe 12 in response to the detection signal from the hydraulic pressure sensor 15. [ When the sterilized water flows, the conductivity measurement potential (n) is determined in step S4. That is, the amount of sterilized water produced in the 0 to 5V voltage step. Step S4 transfers to step S5 to determine whether "conductivity measurement is voltage Xn or more ". Here, the voltage Xn means a voltage based on the potential n. If the voltage is not equal to or higher than the voltage Xn, the process proceeds to step S4. If the voltage Xn is not higher than the voltage Xn , the electronic switch of the semiconductor switch unit 51 for selecting the voltage Xn is turned on in step S6. In step S7, the value of the potential n is displayed on the display 33.

In step S8, a current related to the voltage Xn is applied to the sterilizing water generating electrode to generate the sterilizing water. Thus, in step S9, it is determined whether the current value of the potential n is at the upper limit every predetermined time interval during the operation of the system. If it is the upper limit, the current of the potential n corresponding to the selected current is selected in step S10 and transferred to the sterilizing water generating electrodes (S12).

If it is not the upper limit, it is determined in step S11 whether the potential n current value is the lower limit. If it is the lower limit, the system is stopped. If not the lower limit, the process goes to step S12, the semiconductor switch of the semiconductor switch unit 51 is turned on, and the alternating current selected from the switch is supplied to the AC / DC converter 53 via the variable transformer 52 And the AC-DC converter 53 applies a direct current corresponding to the potential n to the sterilizing water generating electrodes.

In step S14, the chlorine sensor 22 determines the allowable value m of the residual chlorine to be measured by the residual chlorine. The residual chlorine tolerance m determined at this time means a power source applied to the electrodes according to the amount of impurities in the sterilizing water generating module 11. In step S15, the residual chlorine tolerance m is displayed on the indicator 33. [

In step S16, it is determined whether the residual chlorine tolerance value m is equal to the set value. If it is not the same, the process moves to step S17 to determine whether the increment of the potential n value is possible. If yes, perform step S6 and if not, stop the system. In this case, the system abnormality is detected as when the potential n is higher than the upper limit or lower than the lower limit, and the microprocessor 40 controls to forcibly stop the semiconductor switch unit 51 to protect the system.

If the residual chlorine tolerance m is equal to the set value, the elapse of time is monitored in step S18. In step S19, it is determined whether the set time has elapsed. If the time has not elapsed, the operation of the system is maintained. If the time has elapsed, it is determined in step S20 whether the water continues to flow to the water pipe 12 The process moves to step S3 to temporarily operate normally, and if not, locks the valve 16 to stop the system.

11: sterilizing water generating module 20:
14: Filter 15: Hydraulic sensor
16: constant pressure valves 18, 24, 27: first, second and third control valves
21: Conductivity sensor 22: Chlorine sensor
31: control input unit 33: indicator
23: sample 23: sample supply container
30: chemical reaction tank 40: microprocessor
41: AD converter 42: current-voltage converter
43: digital signal input / output unit 45: canal log multiplexer
51: semiconductor switch unit 52: variable AC transformer
53: AC-DC converter

Claims (8)

A sterilizing water producing control system comprising: a filter at a front end to a water pipe connected to a household and connected to water conduction; a hydraulic pressure sensor for measuring a hydraulic pressure generated by sterilizing water generation from a sterilizing water generating module; A sterilizing water generating module capable of generating a sterilized water installed together with the T valve and the hydraulic valve and the static pressure valve for stopping the system under the control of the controller;
A first solenoid valve for supplying sterilized water from the T-tube, a second solenoid valve for supplying a sample for measuring the sample concentration from a sample supply container having a sample of hydrochloric acid, A three-way valve, a chemical reaction tank having a conductivity sensor made of paired electrodes for measuring the electrolysis of sterilized water, and a chlorine sensor serving as a paired electrode for measuring the chlorine concentration of the sample; Wow,
An AD converter that converts the analog signal of the sensing current measured from the conductivity sensor and the chlorine sensor into a digital signal, a current-to-voltage converter that converts the digital current signal of the AD converter into a voltage signal, A digital signal input / output unit receiving a signal from a hydraulic pressure sensor that senses the hydraulic pressure due to the generation of the control signal, and outputting an operation on / off control signal to the first, second and third solenoid valves, a control input unit for inputting control variables for system control (M) and time of the sterilized water in the chemical reaction tank are set first, and at the same time, the residual chlorine tolerance value (m) and time are displayed on the indicator, the conductivity measurement potential (n) for generating the sterilization water titration is determined, When detecting a voltage equivalent to n Xn to the operation of the electrodes of the number generation module and sterilization, the potential in the n current value is an upper limit the system normal operation To the lower limit and if the sterilization can create the control system, characterized in that made up of the controller consisting of a microprocessor to stop the operation of the system. The method according to claim 1,
Wherein the conductivity sensor and the chlorine sensor measure the amount of current flowing in the sterilized water between the electrodes and the amount of current that varies depending on the amount of chlorine of the hydrochloric acid which is a representative impurity dissolved in the generated water.
The method according to claim 1,
The chemical reaction tank is constituted by a first discharge pipe for regulating the level of supply sterilization water and second discharge pipes for the shutdown of the system or exchange of sterilized water and the second discharge pipe is opened and closed by the third solenoid valve Characterized in that the sterilization water generation control system comprises:
The method according to claim 1,
The microprocessor further includes a semiconductor switch unit including an analog multiplexer and a plurality of semiconductor switches on the output side. According to an output control signal of the microprocessor, the analog multiplexer selects a semiconductor switch corresponding to an appropriate voltage applied to the electrodes of the sterilizing water generating module Wherein the sterilization water generation control system comprises:
The method according to claim 1,
The semiconductor switch unit includes a variable transformer and outputs an AC power applied according to a selection of any one of the semiconductor switches and applies the AC power to the AC-DC converter to convert the AC voltage of the selected voltage into a DC voltage, (-) electrodes to generate sterilized water. ≪ Desc / Clms Page number 20 >
A control method of a sterilizing water generation control system,
The residual chlorine tolerance (m) and time of sterilized water in the chemical reactor are set first, while the indicator shows the residual chlorine tolerance (m) and time,
Determining a conductivity measurement potential (n) for generating a sterilizing water titration, detecting a voltage Xn based on the potential n, and controlling the second valve to increase the chlorine concentration if the voltage Xn is not higher than the voltage Xn ,
If the voltage Xn is abnormal, the electronic switch of the semiconductor switch part corresponding to the voltage Xn is connected and turned on, and at the same time, the value of n is displayed on the display,
If the upper limit is the upper limit, a current corresponding to the potential n is selected and applied to the sterilizing water generating electrodes during the operation of the system. If the upper limit is not satisfied, the current corresponding to the potential n is lower limit However,
If it is the lower limit, the system is stopped. If it is not the lower limit, the semiconductor semiconductor switch of the semiconductor switch part is turned on and the AC current is applied to the AC-DC converter through the variable transformer and the DC current corresponding to the potential n of the AC- Generating electrodes to generate sterilized water,
Determining the residual chlorine tolerance m by determining the residual chlorine signal from the chlorine sensor and determining the chlorine tolerance m to be a power source to be applied to the electrodes according to the amount of impurities in the generation module of the sterilized water, And "
Determining if the residual chlorine tolerance m is equal to the set point, if not, determining if the increment of the potential n value is possible, and if so, continuing the sterilizing water generating operation and, if not possible, stopping the system Sterilization water generation control system.
The method of claim 6,
Wherein when the potential n exceeds the upper limit or the lower limit in the step of determining the increment of the potential n value, it is determined that the system is abnormal and the microprocessor controls the semiconductor switch unit to be forcibly stopped to protect the system. Generation control system.
The method of claim 6,
If the residual chlorine tolerance m is equal to the set value in the step of determining the residual chlorine tolerance m, the time lapse is monitored. If the set chlorine residual value m has not elapsed, the operation of the system is maintained. And if it is judged that the flow is flowing, the system is temporarily stopped by the previous operation, and if not, the system is stopped by locking the static pressure valve.

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