KR20080000549A - Eletrolitic [naclo] generator - Google Patents

Abstract

An apparatus for generating sodium hypochlorite by electrolyzing brine of a low concentration is provided to generate an electrolysis solution of a stabilized concentration, enable bipolar plates to be alternately operated, reduce costs for maintenance, repair and management, safely exhaust hydrogen gas generated during electrolysis, and generate a sodium hypochlorite with high disinfection efficiency. An electrolysis type sodium hypochlorite generator comprises: a power control part(C) in which a rectifier is embedded; an electrolysis part(A); an electrolyzed water adjusting part(B) including a dilution water unit(51) and a brine unit(52); an air blower(6); a cooling air sensor(12); a leakage sensor(29); a relay tank(70); and a salt tank(60), wherein a circulation pump(61) installed at a side part of the salt tank is operated such that salt in the salt tank is dissolved by dilution water to generate saturated brine of a low concentration, saturated brine flown into the brine unit together with dilution water discharged from the dilution water unit flow into a first electrolyzer(4) of the electrolysis part, the saturated brine and the dilution water together with air cooled in the air blower flow into first and second electrolyzers(4,5) according to instructions of the cooling air sensor so as to generate a sodium hypochlorite solution, the generated sodium hypochlorite solution is discharged to the relay tank and transferred to a sodium hypochlorite storing tank by a relay pump(72), and electrolytic gas generated during the electrolysis is exhausted to the outside through a vent(14).

Description

Electrolytic Sodium Hypochlorite Generator {Eletrolitic [NaClO] Generator}

The electrolyzed chaya sodium chlorate generator of the present invention relates to a device for automatically chlorine disinfection by electrolyzing low concentration brine to generate sodium hypochlorite solution.

The electrolysis type sodium hypochlorite generator of the present invention is a device integrating the electrolysis part (electrolyte part), the electrolytic water adjusting part and the operation control part in a compact manner. It is a chlorine disinfection system that disinfects by non-diaphragm type electrolysis by injecting the produced salt solution.

Conventionally, an electrolytic hypochlorous acid generator is known, but the electrolytic hypochlorous acid generator uses a bi-polar electrode by alloying titanium, iridium, and rubidium oxide, and periodically It is a system that prevents adhesion and deposition of scales and foreign substances on the electrodes by converting the electrodes (Bi-polar). This system is difficult to maintain and repair, and also requires a lot of maintenance costs. .

The present invention has been made to solve the above problems, the present invention is a compactly integrated device of a power control unit (C) including an electrolysis unit (electrolytic unit) (A), electrolytic water adjusting unit (B), rectifier, low concentration Chlorine disinfection system that electrolyzes brine to produce 0.8 ± 0.1% sodium hypochlorite, and injects the produced salt solution into the electrolysis method to disinfect it. It can operate the anode plates alternately, and the brine is well saturated. Hydrogen is easy to discharge and features low maintenance and maintenance costs.

The present invention is a device for producing sodium hypochlorite solution by electrolyzing low concentration of brine, the electrode coated with a special coating has high electrolytic efficiency, generates electrolytic solution of stable concentration by dilution water and brine and operates the anode plate alternately It has low electrode quantity, simple operation, low maintenance and management cost, safe discharge of hydrogen gas generated during electrolysis, especially sodium hypochlorite solution has high disinfection efficiency and wide range of disinfection in swimming pool and medical field. As it can be used in a wide range of fields, it is very practical and economical.

This will be described in detail with reference to the drawings as follows.

The sodium hypochlorite generator 50 includes an electrolytic part (electrolysis part) A, an electrolytic water adjusting part B composed of a dilution water unit 51 and a brine unit 52, and a power control part incorporating a rectifier (not shown) ( C) is integrated into a compact device, the structure of each device is as follows.

A. Electrolytic part (electrolysis part)

The electrolytic unit (A) is a device that generates 0.8 ± 0.1% hypochlorous acid by electrolyzing salt water of low concentration, and has an electrode having high electrolytic efficiency and long life, and has a primary electrolyzer (4) and a secondary electrolyzer ( 5) By adopting the two-stage electrolytic method, it is possible to further increase the electrolytic efficiency, produce high concentration of hypochlorous acid, and electrolytic efficiency of electrolytic part (A) by coating Ir and Ru oxide on titanium High and long lifespan In order to prevent overheating generated during electrolysis, a blower (not shown) having a cooling electrode plate (not shown) capable of cooling not only air but also an explosive electrolytic gas (hydrogen) generated during electrolysis is built into the vent 14. Collecting the electrolytic gas by the injection method using a safe separation, discharge, and also easy to clean and replace the electrode plate.

B. Electrolyte adjustment part

The electrolytic water adjusting unit B is divided into a dilution water unit 51 and a brine unit 52.

(1) dilution water units

The dilution water unit 51 is a device for diluting saturated brine to a constant concentration and transporting it to the electrolytic unit A. The solenoid valve for opening and closing the dilution water flow path by the signal of the power control unit C, the precision needle valve for adjusting the flow rate, and the flow rate It consists of a flow meter which displays and the flow control valve and the flow meter are integrated.

(2) saline units

The brine unit 52 is a device for transferring saturated brine from the salt tank 60 to the electrolytic unit A, and is composed of a brine pump 11 and a brine flow regulator 10. The brine pump 11 has a strong resistance to It uses a tube pump, and the brine flow rate controller 10 adopts a rotation speed controller to control the rotation speed of the pump motor, has a rotation speed adjustment button and a rotation speed display part, and enables precise flow rate adjustment. The switch is installed.

The introduction method of saturated brine is easy to change the salt into saturated brine by the circulation pump 61, and the dilution water flow rate and the brine flow rate can be easily confirmed the micro flow rate in the flow rate adjustment table. do.

C. Power Control Unit

The power supply control unit C supplies the DC voltage and current required for electrolysis from the electrolytic unit A, and controls the automatic operation of the device according to the operation setting and operation conditions, and can also be set in advance according to an external indication signal. It automatically controls the operation according to the operating state of the switch and automatically detects the low level of electrolyzed water and the lack of cooling air.The status of the operation can be checked from time to time.The front panel of the control unit has a digital device that displays the electrolytic voltmeter, electrolytic ammeter and operation time. Operation status indicator lamp of power supply, cooling blower, gravity pump, DC power supply and low level of electrolyzed water, furnace water, lack of cooling air, low flame tank low level, high level alarm lamp and operation status emergency alarm lamp, flame tank level signal or external contact Automatically stops electrolytic operation in response to a signal. On the back of the controller, it is a structure that can output various situations as a contact signal at the same time as output of electrolytic voltage and current.

Embodiments of the present invention configured as described above are as follows.

In the sodium hypochlorite generator 50 of the present invention, an electrolytic water adjusting unit including a power control unit C, an electrolytic unit A, a dilution water unit 51, and a salt water unit 52 having a rectifier (not shown). (B), the air blower (6), the cooling air sensor 12 and the leak detection sensor 29, and the like, the outside of the sodium generator 50, the relay tank 70, salt tank 60, etc. The method of operation is to supply power to the power control unit (C) (on) when power is supplied to all the devices to dilution water from the outside, but some of the dilution water introduced into the salt tank (60) The remaining water flows into the dilution water unit 51 and the dilution water introduced into the salt tank 60 dissolves the salt in the salt tank 60 by the circulation pump 61 to become saturated brine of low concentration. Saturated brine discharged to the unit 52 and introduced into the brine unit 52 is the dilution unit 51 The discharged dilution water is introduced into the primary tank 4 of the electrolytic unit A. At this time, the air cooled in the air blower 6 is also in accordance with the instructions of the cooling air sensor 12. It is introduced into the secondary electrolyzer (4, 5), respectively, the first electrolysis in the primary electrolyzer (4) and then flows into the secondary electrolyzer (5) again by the second electrolysis in the secondary electrolyzer (5) The generated sodium hypochlorite liquid is discharged to the relay tank 70 and then transferred to the sodium hypochlorite storage tank (not shown) by the relay pump 72, and an explosive electrolytic gas (hydrogen) generated during the above electrolysis. ) Operates an air blower (not shown) built into the ventilation hole 14 to absorb the electrolyte gas generated during electrolysis in an inject method and safely discharge it to the outside through the ventilation hole 14.

The present invention has a strong disinfection power, safety and stable disinfection effect of sodium hypochlorite has been used in a wide range of disinfection fields, such as disinfection of tap water, swimming pool disinfection and various waste water, but there are various methods of producing sodium hypochlorite. The electrolytic sodium hypochlorite generator by brine electrolysis is utilized in various disinfection areas because it can safely and easily control the amount of production by use conditions and usage.

The present invention electrolyzes a low concentration of brine to an electrode having high electrolysis efficiency and long lifetime to produce 0.8 ± 0.1% sodium hypochlorite solution. The electrolytic reaction of sodium hypochlorite in the electrolytic cell is as follows.

Electrolyzer Reaction: NaCl + H ₂ O → NaClO + H ₂ ↑

Electrode reaction:

Anode: 2Cl-2e → Cl ₂

Cathode: 2H + 2e → H ₂

Solution reaction: 2NaOH + Cl ₂ → NaCl + NaClO + H ₂ O

Sodium hypochlorite (NaClO) produced by the above reaction has strong sterilization and disinfection ability.

1 is a flow chart of the present invention

Figure 2 is a front view of the internal configuration of the present invention

Figure 3 is a rear view of the internal configuration of the present invention

※ Explanation of symbols for main parts of drawing

A-Electrolyte B-Electrolyzed water adjuster C-Power supply controller

1-Display unit 2-Power breaker 3-Electrolytic gas discharge line

4-1st electrolytic bath 5-2nd electrolytic bath 6-Cooling air blower

7-Operation Control Unit 8-Electrolyzed Water Level Sensor 9-Dilution Water Flow Controller

10-Salt water flow regulator 11-Salt water introduction pump 12-Cooling air sensor

13-Manual Valve 14-Ventilation 15-Power Terminal Block

16-signal terminal block

17-Signal cable entrance 18-AC cable entrance 19-AC terminal block

20-Solenoid valve 21-Dilution water inlet 22-Brine inlet

23-Control unit ventilation line 24-Sensor terminal block 25-Electrolytic power terminal block

26-Electrolytic gas outlet 27-Cooling air outlet 28-NaClO liquid outlet

29-Leakage sensor 30-Electrolyzed water drain outlet 31-Leakage drain outlet

50-Sodium hypochlorite generator 51-Dilution unit

52-brine unit 60-salt tank 61-circulation pump

70-relay tank 71-sensor 72-relay pump

Claims (2)

Inside the sodium hypochlorite generator 50, an electrolytic water adjusting unit (B) including a power supply control unit (C) having a rectifier (not shown), an electrolytic unit (A), a dilution water unit (51), and a brine unit (52). , The air blower 6, the cooling air sensor 12, and the leak detection sensor 29, etc., and the outside of the sodium generator 50 includes a relay tank 70 and a salt tank 60. The operation method is to supply power to the power control unit (C) (on) to introduce dilution water from the outside, but some of the dilution water introduced into the salt tank (60) and the rest into the dilution water unit (51). The dilution water introduced into the salt tank 60 dissolves the salt in the salt tank 60 according to the operation of the circulation pump 61 installed at the side of the salt tank 60 to produce saturated brine of low concentration. The saturated brine discharged into the unit 52 and introduced into the brine unit 52 is discharged from the dilution water unit 51. The water flows into the primary tank 4 of the electrolytic unit A together with water, and the air cooled in the air blower 6 is also in accordance with the instructions of the cooling air sensor 12. (4, 5), respectively, the first electrolysis in the first electrolytic cell (4) and then back into the second electrolytic cell (5) and the second electrolysis in the second electrolytic cell (5) sodium hypochlorite Produces a liquid, and the generated sodium hypochlorite liquid is discharged to the relay tank 70 and then transferred to the sodium hypochlorite storage tank (not shown) by the relay pump 72, and the electrolytic gas generated during the electrolysis is vented ( Electrolytic sodium hypochlorite generator, characterized in that the discharge through the 14) The electrolytic hypochlorous acid according to claim 1, wherein the ventilation port 14 includes a blower (not shown) to collect the electrolytic gas generated at the time of electrolysis by an inject method and safely discharge it to the outside. Sodium generator

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