KR102104511B1 - Sterilization device for small scale water supply facility - Google Patents

Abstract

The present invention relates to a sterilization device for small-scale water supply facility. In particular, an electrolysis device comprises: an electrode unit in which a plurality of positive electrode plates and negative electrode plates, which are sheet-type electrodes, are alternatingly situated while having a uniform gap therebetween; a gap support which maintains a gap between the plurality of positive electrode plates and negative electrode plates; and a current transfer connection unit, which is connected to end portions of the positive electrode plates and negative electrode plates and is in contact with the gap support, and to which a current is transferred from a direct current supply device, wherein the end portions of the positive electrode plates are connected to a positive electrode plate connection unit, and the end portions of the negative electrode plates are connected to a negative electrode connection unit. The electrolysis device can be installed inside a cylindrical pipe, which has the same shape as a water supply pipe, and allows water flowing in the water supply pipe to be electrolyzed as the water continuously passes through the cylindrical pipe. Thus, the electrolysis device is simple in structure and inexpensive, and consumes a low amount of electricity. The electrolysis device can be installed inside a cylindrical pipe, which is in the same shape as a water supply pipe, and thus is simple to install; and performs electrolysis through the electrolysis device inside water supply pipes.

Description

Sterilization device for small scale water supply facility

The present invention relates to a sterilizing device for a small-scale water supply facility, and more specifically, the structure is simple, inexpensive, and consumes less power, and the electrolysis device is installed in a cylindrical tube of the same shape and diameter as the water supply pipe, so that the installation is easy. , It is designed to achieve electrolysis through an electrolysis device in a water supply pipe, and relates to a sterilization device for a small water supply facility in which the electrolysis device is securely fixed while reducing the effect of resistance to a fast flow rate in the pipe.

In general, the site-produced chlorine growth value is a device that produces a safe sodium hypochlorite by installing an electrolysis tank at a site where chlorine disinfection is required, and electrolytically dissolving the salt dissolved in water, also called a sodium hypochlorite generator or a sodium hypochlorite generator. Although chlorine is an effective disinfectant, the transport, storage, and use of lethal toxic chlorine gas is a serious problem for public health and safety, especially in complex road transport, in environmentally protected areas and in populated residential areas. Since it is becoming a social problem, it is becoming more difficult to use chlorine gas in water purification plants, so it is to manufacture and use chlorine in the field.

When applying a non-diaphragm method in this field producing chlorine-generating device, the electrolyte of the salt (NaCl), the current applied during NaCl bath supplied electrolysis is Na ⁺ and Cl ^- being electrolyzed in, in the positive electrode in going oxidation cathode ileonaneunde the reduction cathode side, hydrogen (H ₂₎ is generated and sodium ion (Na ⁺⁾ and hydroxyl ions (OH ^-) is a sodium hydroxide (NaOH) is produced, the produced chlorine at the anode (Cl ₂₎ and generated by the cathode Sodium hydroxide reacts to produce sodium hypochlorite (NaOCl). These sodium hypochlorite (NaOCl) is used as a water purification plant, sewage treatment plant sterilizer, cooling water boiler in general chemical plants, desalination process treated water, cooling water treatment in power plants, drinking water treatment, plants and vegetables, meat processing, swimming pools, and household bleach. It is a chlorine-based disinfectant used.

The main formula is as follows.

(anode)

2Cl ^- → Cl ₂ + 2e

(cathode)

_{2H 2 O + 2e → H 2} + 2OH -

2Na ^{+ +} 2OH ^- → 2NaOH

(Sodium hypochlorite reaction)

Cl ₂ + 2NaOH → NaOCl + NaCl + H ₂ O

That is, the brine in the brine storage tank is partially diluted by the incoming water from the incoming water supply tank, and the diluted brine is transferred to the electrolysis tank, where the brine component of the diluted brine supplied to the electrolysis tank is 2.8 ~ It is good to keep it at 3.0%, and when diluted brine with 2.8 ~ 3.0% brine component is supplied to the electrolysis tank, it is converted to sodium hypochlorite with an effective chlorine concentration of 7,000-8,000ppm in the process of passing through the electrode part of the electrolysis tank and sodium hypochlorite. It is discharged to a storage tank or a place of use.

However, existing on-site manufacturing chlorine growth values that require a salt water storage tank, incoming water supply tank, sodium hypochlorite storage tank, and pumps associated with each storage tank and tank are sites for sterilizing water at a small scale, such as a simple water facility, swimming pool, or tap water. The structure is complicated and the installation and maintenance cost is too large to be applied to.

On the other hand, as disclosed in the prior art Republic of Korea Patent Publication No. 10-2009-0128141 (published on December 15, 2009), a mixer that is installed in a pipeline for supplying raw water to produce salt water; An electrolysis tank receiving and supplying salt water from the mixer to generate and store sodium hypochlorite; A quantitative injection pump for pumping sodium hypochlorite stored in the electrolysis tank into a pipeline; A control unit for receiving a flow rate signal from a flow sensor installed in the pipeline and controlling the electrolysis tank and the metering pump so that sodium hypochlorite can be injected in proportion to the flow rate; It consists of a communication unit that transmits water disinfection management information, such as flow rate information of the flow sensor, control information of the electrolysis tank and quantitative injection pump, to an external monitoring center. It is not suitable for application.

Republic of Korea Patent Publication No. 10-2009-0128141 (name: water supply disinfection integrated management system)

The present invention has been devised to solve the above problems, and the existing field-produced chlorine growth value has a complicated structure and a too large installation and maintenance cost to be applied to a site for sterilizing water on a small scale. It is intended to provide a sterilizing device for a small-scale waterworks with a simple structure, low cost, and low power consumption.

In addition, the present invention is an electrolysis device is installed in a cylindrical pipe having the same shape and diameter as the water supply piping without the need for a separate electrolysis tank, and the installation is easy, and electrolysis is performed through the electrolysis apparatus in the water supply pipe. It is intended to provide a sterilizing device for a small waterworks in which the components are arranged such that the electrolysis device is securely fixed while reducing the influence of resistance to a fast flow rate in the pipe.

In addition, the present invention provides an appropriate amount of chlorine ions in advance before electrolysis to increase the amount of electrolyte in the water to obtain a desired residual chlorine concentration with low power consumption, and is generated by excess oxygen generated by electrolysis of too much water. The aim is to provide a sterilizing device for a small waterworks that minimizes disinfection by-products.

In order to achieve the above object, the present invention is an electrode portion alternately positioned so that a plurality of positive electrode plates and negative electrode plates, which are plate-shaped electrodes, are staggered at regular intervals; A gap support to maintain a gap between the plurality of anode plates and the cathode plate; An electrolysis device is formed, including: a coupling unit for applying a current that is coupled to the ends of the positive electrode plate and the negative electrode plate and is applied with a current from a direct current supply device and in close contact with the gap support, wherein the ends of the plurality of positive electrode plates are coupled with the positive electrode plate coupling parts. And the ends of the plurality of cathode plates are coupled to the cathode plate coupling portion, the electrolysis device is installed in a cylindrical pipe having the same shape as the water supply pipe, the water flowing in the water supply pipe is continuously electrolyzed while passing through the cylindrical pipe It is characterized by.

In addition, in the present invention, the plurality of positive electrode plates and the negative electrode plates are respectively fitted into the grooves of the spacer and the current-applying coupling portion, and the spacer support and the current-applying coupling portion are adhered to and fixed to the inner periphery of the cylindrical pipe and within the cylindrical pipe. Do not move or twist the electrode part by water flowing at a high flow rate.

In addition, in the present invention, the mutual arrangement of the gap support and the current-applying coupling portion is such that the anode plate coupling portion and the cathode plate coupling portion are in close contact with each end of one gap support, or the anode plate coupling portion and the cathode plate coupling portion are respectively in close contact with the other spacing supports. The gap supports are in close contact with the opposite ends.

In addition, in the present invention, a connection groove for inserting an end portion of the direct current supply device is formed on an opposite surface where a groove is formed in the coupling portion for applying current.

In addition, the present invention is provided with a socket or a flange for the connection of both pipes to the connecting portion of the cylindrical pipe and the water supply pipe, wherein the socket is connected to both the inner socket and the connecting portion of the inner pipe to be fitted to the inner periphery of both pipes. Consists of an outer socket to be fitted to the outer periphery, and a perforation is formed in the outer socket so as to communicate with the perforation while corresponding to the perforation of the cylindrical pipe, so that the end of the DC supply is fitted into the connection groove for the current application coupling portion, or The cylindrical pipe and the water supply pipe are respectively fitted to the grooves on both sides of the flange, and a perforation portion is formed in the flange to correspond to the perforation portion of the cylindrical pipe so as to communicate with the perforation portion, so that the end of the DC supply device is connected to the connection portion for applying current. It fits into the groove.

In addition, in the present invention, the end portion of the external DC supply device is fitted through the perforated portion of the cylindrical pipe in the connection groove for the current application, thereby fixing the electrode portion together with the gap support, and the inner socket fitted at both ends of the cylindrical pipe. By forming a step in the cylindrical pipe by the fitting of the cylindrical pipe and the water supply pipe to each of the grooves on each side of the flange or by the stepped portion, the gap support and the current application coupling portion are fixed in the longitudinal direction to secure the electrode portion. Is ordered.

The present invention is naturally present chlorine ions (Cl ^-) to the water including chlorine in the water ions (Cl ^-) of at least 30 to 40 to ensure ppm maintained at, the electrolytic apparatus is by electrolysis of water, chloride ion (Cl ^-) hypochlorous acid (HOCl) or the hypochlorite ion (OCl ^-) convert to to sterilize the water, creating a number of sterilization, the chemical solution for injecting a chemical solution (NaCl, HCl, KCl) in the water supply pipe reservoir , A pump and a chemical injection tube are additionally configured.

In addition, in the present invention, a static mixer for uniformly mixing the water injected with the chemical solution with the chemical solution is further installed on the water supply pipe.

In addition, according to the present invention, when the residual chlorine concentration is measured and transmitted through the residual chlorine meter, when a change in the residual chlorine concentration is input, the amount of residual chlorine is adjusted by adjusting the amount of current supplied from the DC supply or by adjusting the injection amount of the chemical supplied from the pump. The control unit is additionally configured to adjust to a desired concentration.

As described above, the sterilizer for a small-scale water supply facility according to the present invention has a simple structure, a low cost, and a low power consumption, and an electrolysis device is installed in a cylindrical pipe having the same shape and diameter as the water supply pipe, so that the installation is easy and the water supply pipe is It is envisioned to be electrolyzed through the electrolysis device, and has the effect that the electrolysis device is securely fixed while reducing the influence of resistance to a fast flow rate in the pipe.

In addition, an appropriate amount of chlorine ions is supplied in advance before electrolysis to increase the amount of electrolyte in the water to obtain the desired residual chlorine concentration with low power consumption, and disinfection by-products generated by excess oxygen generated by electrolysis of too much water. It has the effect of minimizing.

1 is a perspective view of a sterilizing device for a small-scale waterworks according to the present invention.
Figure 2 is an exploded perspective view of Figure 1;
3 is a perspective view when FIG. 1 is installed in a pipe.
4 is a front view of FIG. 3.
Figure 5 is a perspective view of the socket or flange is fitted to the end of the pipe in Figure 3;
Figure 6 is a front view of Figure 5;
Fig. 7 is a sectional view of Fig. 5;
Figure 8 is an overall configuration connected to the water supply pipe adjacent to the sterilizing device for small-scale water supply according to the present invention.

If described in detail with reference to the accompanying drawings, preferred embodiments of the present invention configured as described above are as follows. It should be noted that the accompanying drawings and the description with reference to them are exemplified for easy understanding by those skilled in the art with respect to the present invention, and are not intended to limit the spirit and scope of the present invention. Will have to.

The present invention is to sterilize water in a small-scale water supply facility, such as a simple water supply facility, a swimming pool, or a water tap.

1 to 8, the electrolysis device 10 is installed in a cylindrical pipe 30 of the same shape and diameter as the water supply pipe 40 in the present invention without the need for a separate electrolysis tank. It is a structure in which water flowing in the supply pipe 40 is electrolyzed while continuously passing through the cylindrical pipe 30 on which the electrolysis device 10 is installed. Accordingly, when the cylindrical pipe 30 in which the electrolysis device 10 is installed is connected between the water supply pipes 40, the installation is completed, so it is easy to install and can be applied to existing pipes. Therefore, the cylindrical pipe 30 is a type of water supply pipe 40.

The electrolysis apparatus 10 basically maintains the distance between the electrode part 20 composed of a plurality of electrodes and the plurality of electrode plates 11 while the electrode plate 11, which is a plate-shaped electrode, has a certain interval, and the cylindrical pipe The space support 12 and the end of the electrode plate 11 are in close contact with the inner periphery of 30, the current is applied from the direct current supply device 50, and the inner periphery and the space support of the cylindrical pipe 30 ( It consists of a coupling portion 13 for applying a current in close contact with 12).

Here, the electrode plate 11 is divided into a plurality of positive electrode plates 11a and a plurality of negative electrode plates 11b, and the current application coupling portion 13 is a positive electrode plate coupling portion where ends of the plurality of positive electrode plates 11a are coupled ( 13a) and a plurality of negative electrode plates 11b, the end portions of the negative electrode plates are combined 13b. In addition, since the coupling portion 13 for applying current supports the electrode plate 11 together with the gap support 12, the cross section of the coupling portion 13 for applying current is preferably the same as the cross section of the gap support 12. .

The positive electrode plate 11a and the negative electrode plate 11b, which are the electrode plates 11 of the electrode part, are alternately positioned to be spaced apart from each other at regular intervals, and the ends of the plurality of positive electrode plates 11a are combined only with the positive electrode plate connecting portions 13a and a plurality of The end of the negative electrode plate 11b is opposite to the other end of the plurality of positive electrode plates 11a coupled to the positive electrode plate coupling portion 13a so that only the negative electrode plate coupling portion 13b is coupled, and the negative electrode plate coupling portion 13b must be spaced apart. The other end of the opposite end of the plurality of cathode plates 11b coupled with the coupling portion 13b should be spaced apart from the anode plate coupling portion 13a.

Accordingly, the plurality of electrode plates 11 are supplied with current by connecting the positive electrode and the negative electrode from the direct current supply device 50 through the positive electrode plate coupling portion 13a and the negative electrode plate coupling portion 13b. Here, it is preferable that the cathode uses a titanium plate itself and the anode uses a titanium plate plated with ruthenium (Ru) or iridium (Ir).

The plurality of electrode plates 11 are fitted into grooves formed in a plurality of gap supports 12 and coupling portions 13 for applying current, but the number of electrode plates 11 can be increased or decreased as needed. , Since the gap support 12 is made of a non-conductive material such as PVC, each spaced electrode plate 11 is not energized with each other through the gap support 12.

On the other hand, the current applying coupling portion 13, the end of which is in close contact with the gap support 12 is a conductor such as a metal, the length of the cylindrical pipe 30 is limited in the state of the coupling portion 13 for applying current When the length is increased, the length of the gap support 12 is relatively shortened, and accordingly, the length of the electrode plate 11 is shortened, so that electrolysis may not be smooth. As long as the ends of (11) are coupled, it is sufficient if current can be applied. Therefore, the water flowing in the water supply pipe 40 is continuously electrolyzed while passing between a plurality of electrode plates 11 in the cylindrical pipe 30 in which the electrode portion 20 is continuously installed.

Here, in the mutual arrangement of the gap support 12 and the current-applying coupling portion 13, the anode plate coupling portion 13a and the cathode plate coupling portion 13b may be in close contact with both ends of one gap supporting plate 12 (FIG. 1a, FIG. 2a), or the positive electrode plate coupling portion 13a and the negative electrode plate coupling portion 13b are in close contact with the upper and lower spacing support 12, respectively, but are in close contact with the opposite ends of the other spacing support 12. That is, when the two spacing supports are referred to as the first spacing support and the second spacing support, the anode plate coupling portion is brought into close contact with the left end of the first spacing support and the cathode plate coupling portion is in close contact with the right end of the second spacing support (FIG. 1B, FIG. 2b).

In addition, the plurality of electrode plates 11 are installed long in the flow direction of water, so that even if the flow rate of water is fast, the resistance by the electrode plate 11 is less. Here, the calcium (Ca ^{2 +)} and magnesium ion (Mg ²⁺⁾ cation is of the cylindrical pipe 30 to observe the phenomenon of sticking to the surface of the cathode in the electrolytic process from outside is preferably also transparent.

The gap support 12 maintains the gap between the electrode plate 11 and the groove through the grooves with the engaging portion 13 for applying current as described above, and the length may be shorter than the length of the electrode plate 11. And its material is nonconductor such as PVC.

In addition, the opposite surface of which the groove is formed in the upper and lower pair of the gap support 12 and the current application coupling portion 13, that is, one surface in contact with the inner periphery of the cylindrical pipe 30, the curvature of the cylindrical pipe (30) By forming the same as the curvature of the inner periphery so as to be in full contact with the inner periphery of the cylindrical pipe 30, the electrode part 20 is not moved or distorted by water flowing at a high flow rate in the cylindrical pipe 30. It is possible. Here, the width of the electrode plate 11 should naturally be determined in consideration of the inner diameter of the cylindrical pipe 30.

The current application coupling part 13 is configured to apply current from the DC supply device 50 to the electrode plate 11, and is connected to the DC supply device 50 on the opposite surface where the groove is formed. The groove 14 is formed. The end of the external DC supply 50 passes through the perforated portion 31 of the cylindrical pipe 30 and fits into the connection groove 14, and the end of the DC supply 50 is made of copper. It may be in the form of a screw and in order to prevent leakage, the perforated portion 31 requires an O-ring (not shown). In this way, the end portion of the external DC supply device 50 is fitted through the perforated portion 31 of the cylindrical pipe 30 to the connection groove 14 of the coupling portion 13 for current application (the pair of gap supports) 12) is to be able to securely fix the electrode portion 20 together.

On the other hand, both ends of the cylindrical pipe 30 should be connected to the water supply pipe 40 so that water flowing in the water supply pipe 40 continuously flows into the cylindrical pipe 30 where the electrode unit 20 is continuously installed. , The connection portion is provided with a socket 32 or a flange 33 for connection of both pipes.

First, when the socket 32 is installed, it is composed of an inner socket 32a fitted to the inner periphery of both pipes of the joint and an outer socket 32b fitted to the outer periphery of both pipes of the joint and to prevent leakage. Fit the O-ring (not shown) on the required part. Here, while forming a perforation portion 34 in the outer socket 32b so as to correspond to the perforation portion 31 of the cylindrical pipe 30 and communicating with the perforation portion 31, the end of the direct current supply device 50 is applied with current. O-ring (not shown) is required in the perforated portion 34 to fit into the connecting groove 14 of the dragon coupling portion 13 and similarly to prevent leakage. However, if the perforated portion 31 of the cylindrical pipe 30 does not overlap with the socket 32 after the socket 32 is installed, the perforated portion 34 of the socket 32 will not need to be formed.

As the stepped jaws are formed in the cylindrical pipe 30 by the inner sockets 32a fitted at both ends of the cylindrical pipe 30, the gap support 12 and the current-coupling coupling portion, which are in close contact with each other as described above, are formed by the stepped steps. (13) is securely fixed together in the longitudinal direction, it is possible to more securely fix the electrode portion 20 together with the above-described pair of spacers 12 and the coupling portion 13 for current application. This operation is the same also in the case of installation of the flange 33 to be described later.

Here, in order to securely fix the electrode portion 20 by the stepped jaw, the length between the pair of stepped jaws formed in the cylindrical piping 30 by the inner socket 32a sandwiched at both ends of the cylindrical piping 30 is the positive electrode plate coupling part ( When at least one of 13a) and the cathode plate coupling portion 13b is in close contact with the spacing support 12, it should be equal to the sum of the length of the spacing support 12 and the length of the coupling portion 13 for applying current and is current applied. In the case of the gap support 12 where the dragon coupling portion 13 is not in close contact, the length of the gap support 12 should be the same. This is the same also in the case of installation of the flange 33 to be described later.

Next, even when the flange 33 is installed, a stepped step is formed in the cylindrical pipe 30 by fitting the cylindrical pipe 30 and the water supply pipe 40 into grooves on both sides of the flange (see FIG. 7B), respectively. An O-ring (not shown) may be additionally fitted to a portion necessary to prevent leakage. Here also, while forming a perforation portion 34 on the flange 33 so as to communicate with the perforation portion 31 while corresponding to the perforation portion 31 of the cylindrical pipe 30, the end of the direct current supply device 50 is coupled for current application. O-rings (not shown) are required in the perforated portion 34 to fit into the connecting groove 14 of the portion 13 and similarly to prevent leakage. However, if the perforated portion 31 of the cylindrical pipe 30 does not overlap with the flange 33 after the flange 33 is installed, the perforated portion 34 of the flange 33 will not need to be formed.

The material of the socket 32 and the flange 33 is preferably a non-conductor so as to be separated from the electrical element.

In addition, as shown in Figure 8, the chemical liquid (NaCl, HCl, KCl, etc.) in the chemical storage tank 60 in the water supply pipe 40 through which unsterilized water flows through the pump 61 and the chemical injection pipe 62 Through a small amount.

Before the water is electrolyzed by the electrolysis device 10, the chemical solution is dissociated into water in the water supply pipe 40 to generate chlorine ions (Cl ⁻ ). Usually existing water naturally chloride ion in the country (Cl ^-) is 10 ~ 20 ppm what extent so the chlorine ion (Cl ^-) by the liquid injector of 10 ~ 20 ppm level more by adding chloride ion (Cl ^-) 30 Maintain about 40 ppm.

Accordingly, the chlorine in the water ions (Cl ^-) are when at least 30 ~ 40 ppm kept around the electrolytic apparatus 10 has a chlorine ion (Cl ^-), which is by electrolysis of water contained in the water hypochlorous acid (HOCl) or the hypochlorite hypochlorite ion (OCl ^-), as to be the sterilization of water, creating a number of sterile conversion, where hypochlorous acid (HOCl) or the hypochlorite ion (OCl ^-) concentrations (hereinafter referred to as "residual chlorine concentration") is 1.0 ppm level To maintain. That is, the chlorine ions in water (Cl ^-) and then electrolysis to be maintained is at least about 30 ~ 40 ppm residual chlorine concentration can be maintained to about 1.0 ppm which is suitable for drinking water. At this time, since the residual chlorine concentration when water is sterilized by the electrolysis device 10 is sufficient, the desired concentration of residual chlorine can be obtained even if the flow rate of water in the water supply pipe 40 is high, so that a high concentration of chlorine can be obtained. In order to obtain residual chlorine, it is not necessary to add a structure that slows the flow rate of water. For reference, residual chlorine is necessary because microorganisms or bacteria may inhabit the pipe network during the process of supplying water.

In addition, as described above, the present invention is intended for use in a small-scale water supply facility, so there is no need to send sterile water to a long-distance use site, so the residual chlorine concentration is suitable at about 1.0 ppm, and a chlorine re-injection device due to the reduction of the residual chlorine concentration is Not required.

The pump 61 is to use a metering pump having a configuration capable of continuously supplying a certain amount.

In addition, a stirrer (static mixer, 70) is installed on the water supply pipe 40 to ensure that the sterile water in which the medicinal solution is injected is uniformly mixed with the medicinal solution, wherein the stirrer (static mixer, 70) is Since both ends are flanged in the form of a pipe, the flange of the water supply pipe 40 and the static mixer, 70 are combined with the flange to form an integral part with the water supply pipe 40, and the stirring device (static mixer, 70) Inside, the spiral element is generally provided, and there are various types of elements according to the type and characteristics of the fluid.

The stirrer (static mixer, 70) for the rough be a mixture of water and a chemical liquid when supplied in the electrolytic device 10 through the electrolysis as described above, hypochlorous acid (HOCl) or the hypochlorite ion (OCl ^-) to produce This will sterilize the water in the mixed water (unsterilized water + chemical solution). That is, the electrolysis and recombination of mixed water (unsterilized water + chemical solution) by the current imposed on both sides of the electrode in the process of passing through the electrode portion 20 in which the positive electrode plate and the negative electrode plate are sequentially arranged so that the positive electrode and the negative electrode are combined. This will happen.

On the other hand, although there is a difference in concentration in water, there are always calcium (Ca ^{2 +} ) and magnesium (Mg ^{2 +} ) ions, and there is a problem that cationic substances such as calcium and magnesium ions adhere to the cathode surface during the electrolysis process. . When adhesion of cationic materials such as calcium and magnesium ions progresses and spreads between the positive and negative electrodes, an electrical short circuit occurs between the two poles, causing the electrode to be irreversibly damaged, and narrowing the gap between the two poles. depending on the electrolyte did not sufficient is supplied to interrupt the flow of brine hypochlorous acid (HOCl) or the hypochlorite ion (OCl ^-), there is a problem that generation density is low. Therefore, the electrode of a general electrolysis device depends on the hardness of the incoming water (the amount of Ca ^{2 +} and Mg ^{2 +} ) and the amount of electrolysis, but it needs to be cleaned regularly or frequently, usually 7-10% hydrochloric acid (HCl) Alternatively, it is necessary to remove cationic substances such as calcium and magnesium ions on the cathode surface at regular intervals by washing with acetic acid (CH ₃ COOH), and there is a problem in that an electrode cleaning device must be separately installed.

However, in the present invention, since the flow rate in the cylindrical pipe 30 is fast, basically, there is not much adhesion amount of the cationic material, and even if the cationic material adheres, a significant amount of the adhered cationic material due to the fast flow rate in the cylindrical pipe 30 is from the cathode plate. Can be removed.

In addition, the control unit 80 receives the residual chlorine concentration when the water is sterilized by the electrolysis device 10 through the residual chlorine meter 90 and receives the DC supply device 50 or the pump 61. Control. When the change in the residual chlorine concentration of the residual chlorine meter 90 is input, the control unit 80 adjusts the amount of current supplied from the DC supply 50 according to the output signal of the control unit 80 or is supplied from the pump 61 By adjusting the injection amount of the chemical solution, the residual chlorine concentration can be adjusted to a desired concentration, so that the sterilization device can be more efficiently controlled and active response is possible.

In addition, a control valve may be installed on the pipes connected to the chemical storage tank 60 and the electrolysis device 10, etc. as necessary to allow quantitative supply of the chemical or mixed water through the pipes.

When you use a more amount of current to achieve the desired residual chlorine concentration do not further added and using a more amount of current ^- On the other hand, chlorine ions (Cl) in the water supply pipe 40 flows are not sterile water as described above, Not only does the power consumption increase, but the electrolysis device 10 can decompose more water (H ₂ O) due to insufficient electrolyte, and the likelihood that chlorate (ClO ₃ ⁻ ) is generated by the decomposed oxygen increases. in general, the bromine present in the water reacts with hypochlorous acid generated hypochlorous hydrobromic acid (HOBr), and the hypochlorous acid is brominated again hypochlorous bromate ion (OBr ^-) to form a hydrogen ion (H ^+). The related chemical formula is as follows.

^{HOCl + Br - → HOBr + Cl} -

→ HOBr ⁺ H + OBr ^-

However, such hypobromate ions react with the decomposed oxygen to produce bromate (BrO ₃ ⁻ ).

This disinfection by-product chlorate (ClO ₃ ^-) and bromate (BrO ₃ ^-) is there is classified as a carcinogen in the disturbance of the human hormones, and can lead to thyroid cancer, because a major problem is minimized and that the water itself is electrolyzed You have to. Thus, the chloride ion (Cl ^-) in the water supply pipe 40, the water flows are not sterilized as described above, the chloride ion (Cl ^-) and an additional more should be maintained to be always about 30 ~ 40 ppm.

The operation and effect of the present invention configured as described above will be described in order as follows.

First, the water supply pipe by injecting a small amount of chemical liquid (NaCl, HCl, KCl, etc.) in the chemical liquid storage tank 60 into the water supply pipe 40 through which unsterilized water flows through the pump 61 and the chemical liquid injection pipe 62 the addition of chloride ions (Cl ^{-) -} chloride (Cl) to (40) is maintained to be always about 30 ~ 40 ppm.

The stirring device 70 installed on the water supply pipe 40 allows uniformly mixing unsterilized water in which the chemical solution is injected with the chemical solution.

The electrolysis device 10 is installed in the cylindrical pipe 30 of the same shape and diameter as the water supply pipe 40, and water flowing in the water supply pipe 40 (here, water and water passing through the stirring device 70) mixing of the liquid medicament numbers) the chloride ion (Cl while still continuously through the cylindrical pipe 30, the electrolytic device 10 is installed, which is included in the water to the electrolytic ^-), hypochlorous acid (HOCl) or the hypochlorite ion ( OCl ^- converts into) while generating a number of sterilization and the sterilization of water, wherein the chlorine concentration is kept to about 1.0 ppm. At this time, water containing electrolyte flowing in the water supply pipe 40 is electrolyzed while passing between the electrode plates 11 in the cylindrical pipe 30.

In addition, it is possible to minimize the adhesion of cationic substances such as calcium and magnesium ions to the surface of the cathode during the electrolysis process, and the control unit 80 controls the residual chlorine concentration when water is sterilized by the electrolysis device 10. The residual chlorine concentration can be adjusted to a desired concentration by measuring the residual chlorine meter 90 and transmitting the received amount to adjust the amount of current supplied from the DC supply 50 or by adjusting the injection amount of the chemical supplied from the pump 61.

Therefore, the present invention has a simple structure, low cost, low power consumption, and an electrolysis device is installed in a cylindrical pipe having the same shape and diameter as the water supply piping to facilitate installation, and through the electrolysis device in the constant piping. It is designed to make electrolysis, and the electrolysis device is fixed securely while reducing the influence of resistance to the fast flow rate in the pipe.

In addition, the present invention provides an appropriate amount of chlorine ions in advance before electrolysis to increase the amount of electrolyte in the water to obtain a desired residual chlorine concentration with low power consumption, and is generated by excess oxygen generated by electrolysis of too much water. Can minimize disinfection by-products.

10: electrolysis device 11: electrode plate
12: gap support 13: current application coupling
14: connecting groove 20: electrode part
30: cylindrical piping 31,34: perforated
32: socket 33: flange
40: water supply piping 50: DC supply
60: chemical storage tank 61: pump
62: chemical injection tube 70: stirring device
80: control unit 90: residual chlorine meter

Claims (9)

A plurality of positive electrode plates 11a and negative electrode plates 11b, which are plate-shaped electrodes, alternately positioned to be staggered at regular intervals;
A gap support 12 for maintaining a gap between the plurality of positive electrode plates 11a and negative electrode plates 11b;
A current application coupling portion 13 coupled to the ends of the positive electrode plate 11a and the negative electrode plate 11b, the current being applied from the direct current supply device 50 and in close contact with the gap support 12;
The electrolysis device 10 is made, including, the ends of the plurality of positive electrode plates 11a are combined with the positive electrode plate coupling portions 13a, and the ends of the plurality of negative electrode plates 11b are combined with the negative electrode plate coupling portions 13b, The electrolysis device 10 is installed in a cylindrical pipe 30 of the same shape as the water supply pipe 40, and the water flowing in the water supply pipe 40 is continuously electrolyzed while continuously passing through the cylindrical pipe 30. ,
A socket 32 or a flange 33 is installed to connect both pipes to the connecting portion of the cylindrical pipe 30 and the water supply pipe 40,
The socket 32 is composed of an inner socket 32a fitted to the inner periphery of both pipes of the connecting portion and an outer socket 32b fitted to the outer periphery of both pipes of the connecting portion, and a perforated portion of the cylindrical pipe 30 While corresponding to 31), the perforated portion 34 is formed in the outer socket 32b so as to communicate with the perforated portion 31, so that the end portion of the direct current supply device 50 is connected to the connection groove 14 of the current application coupling portion 13 To be fitted into the grooves on both sides of the flange, and the coupling and fitting of the cylindrical pipe 30 and the water supply pipe 40, respectively, while corresponding to the drilling portion 31 of the cylindrical pipe 30, the drilling portion 31 A perforated portion 34 is formed in the flange 33 so as to communicate with the end portion of the DC supply device 50 so as to fit into the connection groove 14 of the coupling portion 13 for applying current,
The end of the external DC supply device 50 is fitted through the perforated part 31 of the cylindrical pipe 30 to the connection groove 14 of the current application coupling part 13, and the gap support 12 and Fix the electrode part 20 together,
In the cylindrical pipe 30 by an inner socket 32a fitted at both ends of the cylindrical pipe 30 or by fitting the cylindrical pipe 30 and the water supply pipe 40 into grooves on both sides of the flange 33, respectively. A stepped jaw is formed so that the gap support 12 and the current application coupling portion 13 are fixed in the longitudinal direction to securely fix the electrode portion 20.
According to claim 1,
The plurality of positive electrode plates (11a) and the negative electrode plate (11b) are respectively fitted into the grooves of the space support 12 and the current application coupling portion 13, the space support 12 and the current application coupling portion 13 is Sterilization apparatus for small-scale waterworks, which is adhered and fixed to the inner periphery of the cylindrical pipe 30 so that the electrode portion 20 is not moved or distorted by water flowing at a high flow rate in the cylindrical pipe 30.
According to claim 1,
In the mutual arrangement of the gap support 12 and the current-applying coupling portion 13, the anode plate coupling portion 13a and the cathode plate coupling portion 13b are in close contact with both ends of one gap supporting plate 12 or the anode plate coupling portion 13a ) And the negative electrode plate coupling portion (13b) is in close contact with the upper and lower gap support (12), respectively, but close to the opposite ends of the other gap support (12), small-scale water sterilization equipment.
According to claim 1,
A sterilizing device for small-scale water supply facilities, in which a connecting groove 14 for fitting an end of the DC supply device 50 is formed on the opposite surface where the groove is formed in the current application coupling portion 13.
delete delete According to claim 1,
Including chlorine ions in water (Cl ^{-) -} Chloride (Cl) naturally present in the water to be kept at least about 30 ~ 40 ppm, the electrolysis device 10, the chlorine ion of water by electrolysis (Cl ^-), hypochlorous acid (HOCl) or the hypochlorite ion (OCl ^- converts a) in order to sterilize the water, creating a number of sterile,
Characterized in that the water supply pipe 40, a chemical storage tank 60 for injecting NaCl, HCl, or KCl as a chemical solution, a pump 61, and a chemical injection tube 62 are further configured, a sterilization device for a small waterworks .
The method of claim 7,
A sterilization device for a small-scale water supply facility, characterized in that a stirrer (static mixer, 70) for allowing the chemically injected water to be uniformly mixed with the chemical solution is additionally installed on the water supply pipe 40.
According to claim 1,
When the residual chlorine concentration is measured and transmitted through the residual chlorine meter 90, and the change in the residual chlorine concentration is input, the amount of current supplied from the DC supply 50 is adjusted or the amount of the chemical supplied from the pump 61 is adjusted. Sterilization device for a small waterworks, characterized in that the control unit 80 is further configured to adjust the residual chlorine concentration to a desired concentration.

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