KR20180095394A - Electrolysed water generating apparatus - Google Patents

Abstract

According to an embodiment of the present invention, provided is an electrolyzed water generating apparatus, which produces a saturated sodium chloride solution having a constantly maintained concentration, and can produce electrolyzed water having a uniform concentration using the sodium chloride saturated solution. According to an embodiment of the present invention, the electrolyzed water generating apparatus comprises: an undiluted solution supply tank for accommodating a saturated sodium chloride solution and sodium chloride therein, and having the sodium chloride precipitated in the saturated sodium chloride solution to form a sodium chloride crystal layer and a saturated sodium chloride solution layer; a circulation unit including a circulation pipe having one end thereof connected to the saturated sodium chloride solution layer and the other end thereof positioned in the sodium chloride crystal layer, and discharging the saturated sodium chloride solution from the saturated sodium chloride solution layer to circulate the same to the sodium chloride crystal layer; a water supply pipe connected to one side of the circulation unit to supply water to the saturated sodium chloride solution circulated through the circulation unit; a undiluted solution supply pipe connected to the saturated sodium chloride solution layer to discharge the saturated sodium chloride solution to the outside of the undiluted solution supply tank; and an electrolytic tank connected to the undiluted solution supply pipe, and generating electrolyzed water by electrolyzing the saturated sodium chloride solution or a diluted solution of sodium chloride.

Description

[0001] Electrolysed water generating apparatus [

The present invention relates to an electrolytic water producing apparatus, and more particularly, to an electrolytic water producing apparatus capable of producing a uniform concentration of electrolytic water using a saturated sodium chloride solution having a constant concentration.

In the food manufacturing industry, sterilization electrolytic water is used for disinfecting instruments, containers, manufacturing facilities, raw materials and parts of foods, etc. Electrolytic water refers to water obtained by applying an electric force to general water, and sterilized electrolytic water means water having a disinfecting power capable of sterilizing various bacteria, fungi, or viruses by electrolyzing water containing an effective component do. The disinfecting power of sterilized electrolytic water can be based on components such as sodium hypochlorite, calcium hypochlorite, or hypochlorous acid, and the sterilized electrolytic water containing these components may also be used as a chlorinated disinfectant.

Sodium hypochlorite can act as a powerful oxidizer, and can be used as a disinfectant to eliminate food spoilage and pathogens. Such sodium hypochlorite is also referred to as sodium hypochlorite, and sodium hypochlorite solution containing sodium hypochlorite (or sodium hypochlorite) is also referred to as electrolytic bleaching solution.

The sodium hypochlorite solution can be produced by electrolyzing a salt solution using an insoluble electrode. The sodium hypochlorite solution, which is currently on the market, is an undiluted concentrate containing 5-12% of effective chlorine. Users should dilute the concentrate with 300 ~ 600 times of diluted water before using the undiluted solution. However, in this case, when the stock solution is stored, the natural decomposition is easily performed, so that the effective chlorine concentration is lowered, or the dilution is not accurate enough to cause dilution.

As a device capable of directly manufacturing a sterilizing agent for self-sterilization, there is a chlorine-based sterilizing agent-producing electrolytic water producing device. For example, a non-diaphragm sodium hypochlorite producing device, a hypochlorous acid hypochlorous acid water producing device, or a slow-acting strong acid hypochlorous acid water producing device. All three kinds of electrolytic water producing apparatus use salt (sodium chloride) solution which becomes a supply source of chlorine component. But salt is a substance that dissolves 36g in 100g of water at 20 degrees Celsius, and solubility is only about 26.5%. Therefore, there is a problem that it is not easy to produce a saturated solution unless a physical force such as stirring is applied. Therefore, there is a problem that a stirring device is separately provided or a saturated salt solution is separately prepared and supplied. In order to solve this problem, a net is provided so that the salt particles do not escape from the lower part of the salt solution cask, and the salt is placed on the netting so that the saturated salt solution passing through the salt layer is collected at the bottom of the salt solution cask The device was designed.

However, in such a conventional apparatus, there arises a problem that when the salt is gradually dissolved so that the height of the salt is lowered and the water passes quickly, it is difficult to generate the salt solution with the saturated concentration. In addition, if the solubility changes with the temperature change of the water, recrystallization of the salt occurs at the surface of the net (for example, the edge of the net, or the crossing line), and the problem is that the salt crystals adhere to the net. The salt crystals attached to the net through recrystallization do not easily dissolve even when the temperature rises, and when this process is repeated, the salt crystals that are recrystallized eventually act as the nucleus and the size of the crystals becomes larger and clogs the holes of the net . As a result, there arises a problem that the whole of the net is blocked and the saturated salt solution can not pass through. Thus, in order to keep the concentration of salt water in a saturated state, there has been devised a device for storing salt and water together in a salt storage tank and keeping the amount of water relatively small compared to the amount of salt in a saturated state. However, , And a tube equipped with a mesh is installed under the salt storage tank to take out the saturated salt solution in the salt pile, which is still a problem due to clogging of the net. Further, in this apparatus, when the salt is dissolved, the undissolved salt at the upper part is lowered and the saturated salt solution is raised above the salt, so that it is not easy to take out the saturated salt solution at the lower part.

Therefore, an electrolyte such as sodium chloride (NaCl) can be used as a source of chlorine components to prepare a saturated solution of sodium chloride maintained at a uniform concentration, to supply the prepared saturated solution of sodium chloride without clogging, and a solution of dilute solution diluted from a saturated solution of sodium chloride It is necessary to develop a device capable of easily maintaining the concentration and providing sterilized electrolytic water of a uniform concentration.

Korean Patent No. 10-1054711 (2011. 08. 01)

The technical problem to be solved by the present invention is to provide a saturated sodium chloride saturated solution which is maintained at a uniform concentration and can continuously supply the prepared saturated sodium chloride solution without clogging, and which is diluted from a saturated sodium chloride solution The present invention provides an electrolytic water producing apparatus which can easily maintain a concentration of a diluting solution and can provide sterilized electrolytic water of a uniform concentration.

The technical objects of the present invention are not limited to the technical matters mentioned above, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to another aspect of the present invention, there is provided an electrolytic water producing apparatus including a saturated sodium chloride solution and a sodium chloride solution, wherein the sodium chloride is precipitated in the saturated sodium chloride solution to form a sodium chloride crystal layer and a saturated sodium chloride solution layer A circulating tube in which one end is connected to the sodium chloride saturated solution layer and the other end is located in the sodium chloride crystal layer, and circulating the sodium chloride saturated solution in the sodium chloride saturated solution layer to the sodium chloride crystal layer, A water supply pipe connected to one side of the circulation unit and supplying water to the sodium chloride saturated solution circulated through the circulation unit, and a sodium chloride saturated solution layer connected to the sodium chloride saturated solution layer, The undiluted solution ball Tube, and is connected to the raw liquid feed pipe comprises an electrolytic cell for generating electrolyzed water by electrolysis of a sodium chloride saturated solution or a dilute solution of sodium chloride.

And a concentration control tank connected between the undiluted solution supply pipe and the electrolytic bath and supplying water to the saturated solution of sodium chloride supplied from the undiluted solution supply pipe to produce the diluted sodium chloride solution.

In the circulation unit, a plurality of fine nozzles may be formed in the nozzle portion located in the sodium chloride crystal layer.

The circulation unit further includes a circulation pump connected to the circulation pipe for circulating the saturated sodium chloride solution. The circulation pump increases the circulation rate or circulation amount of the saturated sodium chloride solution when the amount of water supplied from the water supply pipe increases, .

The circulation unit may control the injection speed of the saturated sodium chloride solution injected through the fine nozzles so that the precipitated sodium chloride does not float.

A discharge valve for opening and closing the undiluted solution supply pipe to control discharge of the saturated sodium chloride solution, and a discharge pump connected to the undiluted solution supply pipe for discharging the saturated solution of sodium chloride to the outside, wherein the sodium chloride solution Is lower than or equal to the reference concentration, the discharge valve is closed and the discharge pump can be stopped.

The water supply pipe can supply water by an amount of the saturated sodium chloride solution discharged through the stock solution supply pipe.

The water supply rate supplied through the water supply pipe may be slower than the discharge rate of the saturated solution of sodium chloride discharged through the raw solution supply pipe.

According to the present invention, it is possible to produce a saturated solution of sodium chloride maintained at a uniform concentration, to continuously supply the resulting saturated solution of sodium chloride and to maintain the concentration of the diluted solution prepared by diluting the saturated solution of sodium chloride Sterilized electrolytic water having a uniform concentration can be produced.

1 is a block diagram showing an electrolytic water producing apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a raw-liquid supply tank and a circulation unit of the electrolytic-water generating apparatus of FIG. 1; FIG.
3 is a cross-sectional view taken along the line A-A 'of the raw-liquid feed tank in Fig.
4 is an operational block diagram illustrating an operation of the electrolytic water producing apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, an electrolytic water producing apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. FIG.

2 is an enlarged view of an undiluted solution supply tank and a circulation unit of the electrolytic water producing apparatus of FIG. 1, and FIG. 3 is a cross- Sectional view taken along line A-A 'in FIG.

The electrolytic water producing apparatus 1 according to an embodiment of the present invention is an apparatus for continuously supplying a saturated sodium chloride solution maintained at a uniform concentration without clogging to produce electrolytic water of uniform concentration.

The electrolytic water producing apparatus 1 may be constituted of an undiluted solution supplying tank 100, a water supplying pipe 200, a circulating unit 300, a raw liquid supplying pipe 400, an electrolytic bath 500, and a concentration adjusting bath 600.

1, the electrolytic water producing apparatus 1 includes an undiluted solution supply tank 100 for supplying water from a water supply pipe 200 to dissolve sodium chloride (S) to generate and store a saturated sodium chloride solution (SW) , The saturated sodium chloride solution (SW) is continuously circulated by the circulation unit (300) and always maintains a uniform saturated concentration. The saturated sodium chloride solution (SW) is maintained at a uniform concentration and is discharged to the concentration control tank (600) through the undiluted solution supply pipe (400), diluted, and then supplied to the electrolytic bath (500)

Hereinafter, each constitution of the electrolytic water producing apparatus 1 will be described in more detail.

Specifically, the undiluted solution supply tank 100 has a receiving space formed therein to receive the saturated sodium chloride solution SW and supply the saturated solution of sodium chloride (SW) to the electrolytic bath 500. The saturated solution of sodium chloride SW) is formed by dissolving sodium chloride (S) in water. Sodium chloride (S) is the source of the chlorine component.

The undiluted solution supply tank 100 can be applied without any form limitation provided that it is a cylindrical shape capable of accommodating a liquid phase and a solid phase including a saturated solution generated from various electrolytic materials including electrolytic materials such as sodium chloride. The water supply tank 100 is connected to the water supply pipe 200 at one side to receive water and the undiluted solution supply pipe 400 is connected at the other side to discharge the sodium chloride saturated solution SW .

The circulation unit 300 for circulating the sodium chloride solution is separately connected to the undiluted solution supply tank 100 in addition to the water supply pipe 200 capable of allowing water to flow in and the undiluted solution supply pipe 400 capable of discharging the saturated solution of sodium chloride.

The water supply pipe 200, the circulation unit 300, and the undiluted solution supply pipe 400 will be described in more detail with reference to FIGS. 1 and 2.

In the saturated sodium chloride solution (SW), sodium chloride (S) begins to be dissolved by supplying water to the initial sodium chloride (S) contained in the original liquid supply tank (100). Water is introduced from the water supply pipe 200, and sodium chloride (S) is dissolved to form a sodium chloride crystal layer (S '). The amount of water supplied through the water supply pipe 200 may be equal to or greater than the height of the sodium chloride crystal layer S 'and the sodium chloride saturated solution SW generated above the height of the sodium chloride crystal layer S' SW ') can be formed.

In general, a saturated solution is a solution in which a solute is dissolved in a certain amount of solvent. In this solution, the dissolution rate and the precipitation rate are the same. Namely, the sodium chloride saturated solution (SW) appears to have stopped dissolving and stopping, but the dissolution and precipitation rates have reached the same dissolution equilibrium state. The sodium chloride saturated solution (SW) (S) is precipitated from the thus formed sodium chloride saturated solution layer (SW ') to form a sodium chloride crystal layer (S') are all in an active dynamic equilibrium state Means a saturated solution.

In other words, when a certain amount of water is supplied and a saturated solution of sodium chloride (SW) is formed, the saturated solution of sodium chloride (SW) and the solution of sodium chloride (S) reach the equilibrium of dissolution and are precipitated in the saturated solution of sodium chloride In this process, the sodium chloride crystal layer S 'and the sodium chloride saturated solution layer SW' are naturally separated and accommodated in the undiluted solution supply tank 100.

The sodium chloride crystal layer S 'is in the form of a solid precipitate and is located below the sodium chloride saturated solution layer SW' and the sodium chloride saturated solution layer SW ' It is located at the top. The layered structure of the sodium chloride crystal layer (S ') and the sodium chloride saturated solution layer (SW') can be formed by supplying water to sodium chloride (S) and dissolving sodium chloride (S) by water.

The sodium chloride crystal layer (S ') contains a space formed between the sodium chloride (S) crystals. The sodium chloride saturated solution (SW) is present in the liquid phase and can therefore be filled in the space between the sodium chloride (S) crystals. That is, as shown in FIG. 1 and FIG. 2, the sodium chloride crystal layer S 'is a state in which sodium chloride (S) and a sodium chloride saturated solution (SW) are mixed. When water is continuously supplied, the saturated sodium chloride solution (SW) exceeds the height of the sodium chloride crystal layer (S '). Sodium chloride (S) and a sodium chloride saturated solution (SW) are contained together in the sodium chloride crystal layer (S ') while only the sodium chloride saturated solution (SW) is contained in the saturated sodium chloride solution layer (SW'). The water supply pipe 200, the circulation unit 300, and the undiluted solution supply pipe 400 constituting the electrolytic water producing apparatus 1 can be more efficiently provided by the sodium chloride crystal layer S 'and the sodium chloride saturated solution layer SW' As shown in FIG.

In detail, as shown in FIG. 2, the inside of the raw-liquid supply vessel 100 having reached the maximum number of layers is separated into the sodium chloride crystal layer S 'and the sodium chloride saturated solution layer SW'. Therefore, the circulation unit 300 can be positioned at one end of the undiluted solution supply pipe 400 in the sodium chloride saturated solution layer SW ', and the other end can be positioned in the sodium chloride crystal layer S'. The side from which the sodium chloride saturated solution SW is introduced in the circulation unit 300 and the side from which the sodium chloride saturated solution SW is discharged from the undiluted solution supply pipe 400 are connected to the sodium chloride saturated solution layer SW ' (S), the problem of clogging the pipeline due to sodium chloride (S) does not occur.

Referring to FIG. 2, the circulation unit 300 includes a circulation pipe 310 having one end connected to the sodium chloride saturated solution layer SW 'and the other end disposed in the sodium chloride crystal layer S' And a circulation pump 330 for circulating the fluid inside the circulation pipe 310. That is, the circulation pipe 310 communicates the sodium chloride saturated solution layer SW 'and the sodium chloride crystal layer S'.

The saturated sodium chloride solution (SW) is discharged from the sodium chloride saturated solution layer (SW ') through the circulation tube (310) and is supplied again to the sodium chloride crystal layer (S') and circulated. The circulating unit 300 acts as a kind of stirrer to continuously circulate the sodium chloride saturated solution SW so that the dynamic equilibrium is maintained through the dissolution and precipitation of sodium chloride S and the sodium chloride saturated solution SW ') to circulate uniformly to maintain a uniform saturation concentration at the point of the sodium chloride saturated solution layer (SW'). At this time, the water supply pipe 200 is connected to one end of the circulation unit 300 from which the saturated sodium chloride solution SW is discharged, more specifically, to one side of the circulation pipe 310, and water can be supplied.

The water supply pipe 200 is connected to one side of the circulation unit 300 and supplies water to the sodium chloride saturated solution SW circulated through the circulation unit 300. That is, water is not supplied directly to the raw liquid reservoir 100 from the water supply pipe 200 but is supplied to the circulation unit 300 and mixed with the sodium chloride saturated solution SW introduced into the circulation pipe 310 . With this structure, water is provided in a state of a certain saltiness or more to dissolve sodium chloride (S), and a saturated sodium chloride solution (SW) can be produced more easily and quickly. That is, when the water supply pipe 200 is connected to one side of the circulation unit 300 and supplies water, for example, the water supply pipe 200 is positioned at the upper end of the original liquid supply tank 100 and the sodium chloride saturated solution layer SW ' The concentration and the salinity of the sodium chloride solution are less likely to change at each point of the sodium chloride saturated solution layer (SW ') than when the water is dropped into the water surface of the sodium chloride saturated solution layer (SW'). For example, when the water supply line 200 is supplied to the water surface of the sodium chloride saturated solution layer SW 'or is supplied to some point inside the sodium chloride saturated solution layer SW' At this point, the sodium chloride saturated solution (SW) can be diluted with water. However, the structure of the water supply part 200 of the present invention makes it possible to prevent such concentration and unevenness of the concentration and salinity.

The water supplied to the circulation unit 300 is discharged from the circulation pipe 310 located at the other end of the circulation pipe 310, that is, the sodium chloride crystal layer S '. At this time, the saturated sodium chloride solution (SW) can be sprayed from the circulation pipe 310 as it is sprayed. More specifically, a nozzle unit 320 is formed on the surface of the circulation pipe 310, and the sodium chloride solution is injected into the sodium chloride crystal layer S 'through the nozzle unit 320.

The nozzle unit 320 serves to spray the sodium chloride solution with the sodium chloride crystal layer S 'and discharges the sodium chloride solution to float the sodium chloride S which forms the sodium chloride crystal layer S' Floating in the sodium chloride saturated solution (SW) can be prevented in advance.

The nozzle unit 320 can control the discharge speed and the discharge pressure of the sodium chloride solution discharged as the sodium chloride crystal layer S '.

2 and 3, the nozzle unit 320 is formed of a plurality of fine nozzles 321, so that the nozzle unit 320 can be more reliably affected by the discharge pressure The area can be dispersed, and the discharge speed can also be reduced. In other words, since the outlet of the solution is dispersed to the multi-point by the plurality of fine nozzles 321, the discharge of the sodium chloride solution can be achieved without concentrating at a specific point. In particular, as shown in FIG. 3, the fine nozzles 321 can be formed in various directions when viewed from the cross section of the circulation pipe 310, so that the sodium chloride solution can be sprayed in many directions. As a result, sodium chloride (S) can be dissolved evenly.

If the solution is discharged by one nozzle, the discharge pressure is increased because the discharge of the solution is concentrated only at the position where the nozzle is located. However, as in the case of the nozzle unit 320 of the present invention, when the sodium chloride solution is discharged through the nozzle unit 320 composed of the plurality of fine nozzles 321, the plurality of fine nozzles 321 So that the discharge pressure can be significantly reduced and discharged as compared with the case of discharging in one place.

In addition, the circulation unit 300 can control the injection rate of the sodium chloride solution or the sodium chloride saturated solution injected through the fine nozzles 321. That is, the injection speed of the sodium chloride solution or the sodium chloride saturated solution injected through the fine nozzles 321 formed in the circulation pipe 310 can be controlled.

The fine nozzles 321 are branched into several branches so that the sodium chloride solution or the saturated solution of sodium chloride can be injected in various directions to reduce the discharge pressure as well as to control the injection speed so as to prevent the sodium chloride S from floating Effect can be obtained. According to the structure of the fine nozzles 321 as described above, the circulation pipe 310 can spray the sodium chloride solution without floating the sodium chloride S of the sodium chloride crystal layer S '. Further, the plurality of fine nozzles 321 can be sprayed with the sodium chloride solution as a spray, so that the sodium chloride solution is supplied to the sodium chloride crystal layer (S ') without floating the precipitated sodium chloride (S).

Further, the circulation pump 330 is formed on the circulation unit 300, so that circulation of the sodium chloride solution can be more smoothly performed. The circulation pump 330 can start operation when water is supplied from the water supply pipe 200. When the circulation pump 330 operates, a saturated sodium chloride solution SW is discharged along the circulation pipe 310 and mixed with water to flow through the circulation pipe 310 and to the sodium chloride crystal layer S '. The circulation pump 330 may be operated for a predetermined period of time even if the water supply from the water supply pipe 200 is stopped or stopped when the sodium chloride solution contained in the raw liquid supply tank 100 becomes saturated It can be controlled to continue.

Further, when the amount of water supplied from the water supply pipe 200 increases, the circulation pump 330 can increase the circulation rate or circulation amount of the sodium chloride solution accordingly. It takes a certain period of time or longer to dissolve sodium chloride (S) in water in the stock solution feed tank (100) to produce a saturated solution having a proper concentration or more. If the amount of water supplied through the water supply line 200 rapidly increases, it may happen that the sodium chloride (S) is pushed up into the sodium chloride saturated solution layer (SW ') in a state that the sodium chloride (S) do. In this case, the concentration of the sodium chloride saturated solution layer (SW ') which has already reached the saturation state may decrease together. Therefore, when the amount of water supplied from the water supply pipe 200 increases, the circulation rate or the circulation amount of the sodium chloride solution is also increased in order to prevent the decrease in salinity, so that the concentration and salinity of the sodium chloride saturated solution layer (SW ' It is possible to inhibit the change and quickly induce the recovery to the saturated state.

Therefore, a salinity measuring sensor (not shown) may be installed in the undiluted solution supply tank 100 to confirm whether the saturated solution state of the sodium chloride solution contained in the undiluted solution supply tank 100 has been reached. That is, the salinity of the undiluted solution in the undiluted solution supply tank 100 may be measured by a salinity measuring sensor installed in the undiluted solution supply tank 100 to control the circulation of the sodium chloride solution through the circulation unit 300. If the supply of water from the water supply pipe 200 is stopped but the sodium chloride solution in the raw liquid supply tank 100 does not reach the saturation state as a result of the measurement of the salinity measurement sensor, the circulation pump 330 is continuously driven to circulate the sodium chloride solution can do.

When the concentration of the sodium chloride solution does not reach the saturation concentration, the undiluted solution supply tank 100 can stop the discharge of the sodium chloride solution into the undiluted solution supply pipe 400. That is, when the concentration of the sodium chloride solution is lower than the reference concentration, the discharge of the sodium chloride solution into the undiluted solution supply pipe 400 can be blocked. For example, if a salt concentration of 26% at 20 degrees Celsius is the saturated concentration of a sodium chloride solution, a reference concentration of 25% can be determined by determining a tolerance of 1% in a saturated solution of sodium chloride. The reference concentration can be appropriately determined in consideration of the setting of the electrolytic bath 500 and the concentration control bath 600. [

The undiluted solution supply pipe 400 has a pipe structure connected to the sodium chloride saturated solution layer SW 'and includes a discharge valve 420 for opening and closing the undiluted solution supply pipe 400 to control discharge of the saturated sodium chloride solution SW, And a discharge pump 430 for discharging the saturated sodium chloride solution SW to the outside. More specifically, when the concentration of the sodium chloride solution contained in the raw liquid supply tank 400 is equal to or lower than the reference concentration, the discharge valve 420 is closed and the discharge pump 430 can be stopped.

The saturated sodium chloride solution (SW) should be discharged to the undiluted solution supply pipe (400) while maintaining a saturated concentration or maintaining a concentration within a certain allowable range. When the concentration of the sodium chloride solution accommodated in the undiluted solution supply tank 100 is reduced by an allowable range (about 1% or more), the discharge of the sodium chloride solution into the undiluted solution supply pipe 400 is stopped. A salinity measuring sensor is provided in the undiluted solution supply tank 100 to sense the concentration decrease in the undiluted solution supply tank 100 and to control the operation of the discharge valve 420 and the discharge pump 430.

When the concentration of sodium chloride is lower than the reference concentration, the discharge valve 420 is closed and the circulation pump 330 is driven so that the concentration of sodium chloride reaches the saturated concentration in the state where the discharge pump 430 is closed.

When the concentration of sodium chloride is saturated by the circulation pump 330 and the saturated sodium chloride solution SW is stored in the raw water supply tank 100 in a full water state, the sodium chloride saturated solution SW is supplied to the undiluted solution supply pipe 400 And is discharged to the outside of the undiluted solution supply tank 100.

At this time, since the undiluted solution supply pipe 400 is connected to the saturated sodium chloride solution layer SW ', it is possible to smoothly discharge the saturated sodium chloride solution SW without causing problems such as clogging of the pipeline by the sodium chloride (S) have. When the water is supplied into the undiluted solution supply tank 100 by the water supply pipe 200 and the saturated sodium chloride solution SW is generated, the saturated solution of sodium chloride SW starts to flow from the bottom of the undiluted solution supply tank 100. In order to prevent water from being continuously supplied and overflowing the sodium chloride solution outside the raw liquid supply tank 100, a water level sensing unit may be formed in the raw liquid supply tank 100 to sense a certain level of water and to stop water supply have. The water level sensing unit may be installed at any place where the solution is stored, and at least one of the water level sensor or the ball tap may be installed in the undiluted solution supply tank 100 and the water storage tank 220 Respectively. The ball tap is a device that can control the water supply by detecting the displacement of a ball-shaped float which changes due to the vertical fluctuation of the water surface, and can be installed by applying what is commercially available.

The water level sensing unit installed in the undiluted solution supply tank 100 is referred to as a first level sensing unit 110 and the water level sensing unit provided inside the water storage tank 220 is referred to as a second level sensing unit 221.

The first water level sensing unit 110 senses the level of the sodium chloride saturated solution SW in the original liquid supply tank 100 to maintain a constant level of the sodium chloride saturated solution layer SW '. When water is continuously supplied through the water supply unit 200 and the sodium chloride saturated solution SW is generated and the water level of the sodium chloride saturated solution SW rises to the position of the first water level sensing unit 110, The controller 110 recognizes the rise of the water level. That is, the first water level sensor 110 detects the water level of the sodium chloride saturated solution SW, more specifically, the level of the sodium chloride saturated solution layer SW 'that has risen to the position where the first water level sensing unit 110 is installed, It is possible to stop the supply of water through the water supply pipe 100 by detecting the full water level in the tank 100.

The first water level sensing unit 110 is preferably a water level sensor and can control opening and closing of the water supply pipe 200 in conjunction with a solenoid valve 240 for controlling the opening and closing of the water supply pipe 200. That is, when the first level sensing unit 110 recognizes the full capacity of the undiluted solution supply tank 100, a signal is sent to the solenoid valve 240 to switch the water supply pipe 200 to the closed state.

The saturated sodium chloride solution (SW) is discharged through the undiluted solution supply pipe (400), moved to the concentration adjusting bath (600) and diluted, and then moved to the electrolytic bath (500). The water supply pipe 200 can supply water to the undiluted solution supply vessel 100 by an amount of the saturated sodium chloride solution SW discharged through the undiluted solution supply pipe 400 to maintain the level of the undiluted solution supply vessel 100 constant. At this time, the inflow rate of water supplied through the water supply pipe 200 can be controlled to be slower than the discharge rate of the sodium chloride saturated solution SW discharged through the undiluted solution supply pipe 400. That is, it is possible to prevent the concentration of the sodium chloride solution contained in the raw liquid supply tank 100 from being drastically lowered by controlling the speed of the water flowing into the raw liquid supply tank 100. On the other hand, even if the velocity of the water flowing into the raw liquid supply tank 100 is high, the circulation speed of the circulation unit 300 can be increased to rapidly reach the saturation state of the sodium chloride solution.

A branch pipe is formed in the water supply pipe 200 and can be connected to the water storage tank 220. The water storage tank 220 is for storing water for dilution, and the dilution line 230 is formed at the lower end to discharge water. 1, water W is discharged through a dilution line 230 to dilute the sodium chloride saturated solution SW. On the inner wall of the water storage tank 220, a second water level sensing part 221 for sensing the water level is formed. The second water level sensing unit 221 performs the same function as the first water level sensing unit 110 installed in the raw liquid tank 100. A predetermined amount of water W is discharged to the dilution line 230, When the water level of the water storage tank 220 is lowered, the water storage tank 220 senses the water level and allows the water storage tank 220 to receive the water W from the water supply pipe 200.

The second water level sensing unit 221 may be one selected from a water level sensor or a ball tap, but may more preferably be a ball tap.

When the water W is supplied from the water storage tank 220 and the sodium chloride saturated solution SW is discharged through the undiluted solution supply pipe 400, the water W and the saturated sodium chloride solution SW are supplied to the concentration adjusting tank 600, And the sodium chloride saturated solution (SW) is diluted. The concentration of the sodium chloride dilution solution (DSW) suitable for electrolysis in the electrolytic bath 500 is 0.2 to 3.0%, and the concentration of the 26% sodium chloride saturated solution (SW) discharged from the undiluted solution supply pipe 400 is about 8.7 to 130 times It should be diluted. Therefore, the concentration adjusting tank 600 performs an operation for diluting the sodium chloride saturated solution (SW) to this proper concentration.

Assuming that the amount of the sodium chloride dilution solution (DSW) supplied to the electrolytic bath 500 is 100 ml per minute, the amount of the sodium chloride saturated solution (SW) discharged from the undiluted solution supply pipe 400 is about 0.8 to 12 ml per minute. Since the concentration of the raw water discharged from the undiluted solution supply pipe 400 is constant, the amount of water required during the dilution process is also constant. Therefore, it is possible to produce a sodium chloride diluent solution (DSW) that maintains a uniform overall concentration.

The electrolytic bath 500 is an apparatus for electrolyzing a sodium chloride saturated solution (SW) or a sodium chloride dilution solution (DSW) to generate electrolytic water, and can be connected to the undiluted solution supply pipe 400. More preferably, the sodium chloride saturated solution (SW) supplied from the undiluted solution supply pipe (400) in the concentration control tank (600) is connected to the concentration control tank (600) and the water supplied from the water storage tank (For example, 0.2 to 3.0%) and then supplied to the electrolytic bath 500.

The electrolytic cell 500 can be largely divided into a non-septic electrolytic cell and a gap film electrolytic cell. In the drawings of the present specification, a non-diaphragm electrolytic cell is shown, but the present invention is not limited thereto. The electrolytic cell electrolysis using a sodium chloride solution may be applied to a non-diaphragm electrolytic cell or a gap film electrolytic cell. The gap membrane electrolytic cell will be described later.

The diluted sodium chloride dilution solution (DSW) through the series of processes described above means a solution diluted to a concentration optimized for producing electrolytic water. The sodium chloride dilution solution (DSW) is discharged to the diluent supply pipe 410 while maintaining the optimum concentration, and then flows into the electrolytic bath 500. When a diluted sodium chloride solution (DSW) is supplied to the electrolytic bath 500, electrolysis of the electrolytic bath 500 occurs at the (+) and (-) electrodes, respectively.

Formula 1

(+) Pole

2NaCl → 2Na ⁺ + 2Cl ^-

2Cl ^- ? Cl ₂ + 2e ^-

Cl ₂ + H ₂ O → HOCl + HCl

(-)drama

2Na ⁺ + H ₂ O + 2e ^- ? 2NaOH + H ₂

The diluted solution (DSW) which has undergone the electrolysis process by the reaction is further subjected to the reaction represented by the general formula (2) in the electrolytic bath (500) to produce sodium hypochlorite (NaOCl).

(2)

(HOCl + HCl) + (2NaOH + H 2) → NaOCl + NaCl + H 2 O + H 2

As shown in the formula ( ₂ ), water (H ₂ O) is produced together with sodium hypochlorite during the production process, and thus, the sodium hypochlorite solution can be used as it is. That is, it can be used as sterilization electrolytic water immediately without any additional process for use. Therefore, it is possible to easily obtain the sodium hypochlorite solution by means of the electrolytic water producing apparatus 1 which can be installed for the private use.

Electrolysis is performed in the same manner as the reaction occurring in the electrolytic water generating apparatus 1 of the electrolytic water producing apparatus 1 of the present invention, but since the (+) electrode and the (-) electrode are partitioned into diaphragms, There is a difference in that strong alkaline water and strong acidic water are generated separately in the region where the electrode is located. In this case, electrolytic treatment using an electrolytic solution using sodium chloride can also be performed to produce sterilized electrolytic water, which is effective, so that it is possible to replace the electrolytic cell with a galvanic membrane.

Hereinafter, the operation of the electrolytic water producing apparatus 1 according to the embodiment of the present invention will be described in detail with reference to FIG.

4 is an operational block diagram illustrating an operation of the electrolytic water producing apparatus according to an embodiment of the present invention.

The electrolytic water producing apparatus 1 according to an embodiment of the present invention continuously circulates the sodium chloride saturated solution SW by using the circulation unit 300 and supplies the water to the water supply pipe 200 through the circulation unit 300, Can be supplied. The water is supplied into the circulating unit 300 and is supplied into the raw liquid supply tank 100. Therefore, the sodium chloride solution can reach the saturated state more rapidly in the raw liquid supply tank 100, .

4 (a), when water is supplied from the water supply pipe 200, flows into the circulation unit 300, and is supplied to the sodium chloride crystal layer S ', sodium chloride (S) And slowly dissolved to produce a saturated sodium chloride solution (SW). Since the saturated solution of sodium chloride (SW) can be filled in the space between the sodium chloride (S) crystals of the sodium chloride crystal layer (S '), sodium chloride (S) and the sodium chloride saturated solution do. When a certain amount of water is introduced from the water supply pipe 200 and the level of the sodium chloride saturated solution SW exceeds the height of the sodium chloride crystal layer S ', the sodium chloride saturated solution layer SW' containing only the saturated sodium chloride solution SW, ). At this time, the saturated sodium chloride solution (SW) can be discharged through the circulation pipe (310) connected to the sodium chloride saturated solution layer (SW ') so that the water supplied from the water supply pipe (200) And may be supplied as a sodium chloride crystal layer S 'in a mixed state. Thus, it can be much easier for the sodium chloride solution to reach the saturation concentration.

When the water level of the sodium chloride saturated solution (SW) reaches the height at which the first water level sensing unit (110) is installed, the first water level sensing unit (110) A signal is given to the solenoid valve 240 provided on the water supply pipe 200 to close the water supply pipe 200.

The saturated sodium chloride solution SW stored in the raw liquid reservoir 100 in a fully charged state is discharged through the raw liquid discharge pipe 400 to the outside of the raw liquid supply tank 100. 4 (b), the sodium chloride saturated solution SW is discharged out of the raw liquid supply tank 100 and then flows into the concentration adjusting tank 600, diluted in the concentration adjusting tank 600, (500). That is, when the sodium chloride saturated solution SW is discharged from the raw liquid supply tank 100, the water W contained in the water storage tank 220 is discharged along the dilution line 230, and the sodium chloride saturated solution (SW) and water (W) are diluted to an appropriate concentration in the concentration control tank 600 to produce a diluted sodium chloride solution (DSW). The sodium chloride dilution solution (DSW) diluted in the concentration control tank 600 through the above process is transferred to the electrolytic bath 500 and electrolyzed, and electrolytic water is produced.

As shown in FIG. 4B, when the sodium chloride saturated solution SW is discharged and the first water level sensing unit 110 in the original liquid supply tank 100 senses a decrease in the level of the sodium chloride saturated solution SW , The solenoid valve (240) is opened to allow water to flow from the water supply pipe (200). At the same time, the water storage tank 220 can also detect the decrease in the water level of the water W by the second water level sensing unit 221, thereby allowing water to flow from the water supply unit 200. At this time, the supply rate of the supplied water may be slower than the discharge rate of the saturated sodium chloride solution (SW) discharged through the undiluted solution supply pipe (400). Therefore, it is possible to provide a sufficient time margin for the sodium chloride to dissolve, and it is possible to allow the sodium chloride solution in the stock solution feed tank 100 to be accommodated in a saturated state. However, the present invention is not limited to this case. Even if the speed of the water flowing from the water supply pipe 200 is higher than the discharge speed of the sodium chloride saturated solution SW discharged through the raw liquid supply pipe 400, The sodium chloride solution can be controlled to reach the saturation state in a short time because the circulation rate of the sodium chloride solution can be increased through the control of the sodium chloride solution.

The water supply pipe 200 supplies the same amount of water as the amount of the saturated sodium chloride solution SW discharged through the undiluted solution supply pipe 400 to the undiluted solution supply tank 100. In the electrolytic water producing apparatus 1 of the present invention, 4 (a) and 4 (b) can be repeated to generate electrolytic water. That is, a process of generating electrolytic water by supplying sodium chloride dilution solution (DSW) to the electrolytic bath 500, or supplying water to the undiluted solution supply bath 100 and generating and storing the sodium chloride saturated solution SW may be repeatedly performed .

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: electrolytic water generating device
100: an undiluted solution supply tank 110: a first water level sensing unit
200: water supply pipe 220: water storage tank
221: second water level sensing unit 230: dilution line
240: solenoid valve 300: circulation unit
310: circulation tube 320: nozzle part
321: fine nozzle 330: circulation pump
400: undiluted solution supply pipe 410: diluted solution supply pipe
420: Discharge valve 430: Discharge pump
500: electrolytic bath 600: concentration adjusting tank
SW: saturated solution of sodium chloride SW ': saturated solution of sodium chloride layer
S: sodium chloride S ': sodium chloride crystal layer
DSW: Dilute sodium chloride solution W: Water
P: Pump

Claims (8)

A stock solution supply tank in which a saturated solution of sodium chloride and a solution of sodium chloride are contained in the solution, wherein the sodium chloride is precipitated in the saturated solution of sodium chloride to form a sodium chloride crystal layer and a saturated sodium chloride solution layer;
A circulation unit for circulating a saturated solution of sodium chloride in the saturated sodium chloride solution layer to the sodium chloride crystal layer, the circulation unit including a circulation tube having one end connected to the sodium chloride saturated solution layer and the other end positioned in the sodium chloride crystal layer;
A water supply pipe connected to one side of the circulation unit and supplying water to the sodium chloride saturated solution circulated through the circulation unit;
A raw liquid supply pipe connected to the sodium chloride saturated solution layer and discharging the saturated sodium chloride solution out of the raw liquid supply tank; And
And an electrolytic bath connected to the raw liquid supply pipe and electrolyzing the sodium chloride saturated solution or the diluted sodium chloride solution to produce electrolytic water. The method according to claim 1,
And a concentration adjusting vessel connected between the undiluted solution supply pipe and the electrolytic bath and applying a water to the saturated solution of sodium chloride supplied from the undiluted solution supply pipe to produce the diluted sodium chloride solution. The method according to claim 1,
Wherein the circulation unit has a plurality of fine nozzles formed in a nozzle portion located in the sodium chloride crystal layer. The method of claim 3,
The circulation unit further includes a circulation pump connected to the circulation pipe for circulating the saturated sodium chloride solution,
Wherein the circulation pump increases the circulation rate or circulation amount of the saturated sodium chloride solution when the amount of water supplied from the water supply pipe increases. The method of claim 3,
Wherein the circulation unit controls an injection speed of the saturated sodium chloride solution injected through the fine nozzles so that the precipitated sodium chloride does not float. The method according to claim 1,
A discharge valve for opening and closing the undiluted solution supply pipe to control discharge of the saturated sodium chloride solution,
And a discharge pump connected to the undiluted solution supply pipe to discharge the saturated sodium chloride solution to the outside,
Wherein the discharge valve is closed and the discharge pump is stopped when the concentration of sodium chloride solution contained in the stock solution supply tank is lower than a reference concentration. The method according to claim 1,
And the water supply pipe supplies water by an amount of the saturated solution of sodium chloride discharged through the undiluted solution supply pipe. 8. The method of claim 7,
Wherein the water supply rate supplied through the water supply line is slower than the discharge rate of the saturated solution of sodium chloride discharged through the undiluted solution supply line.

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