KR102501728B1 - Sterile water dilution device having the function of preventing back flow - Google Patents

Abstract

The present invention relates to a sterilizing water dilution device having a function of preventing backflow as well as supplying diluted stock solution of disinfectant and water used as a sterilizing disinfectant, oxidizing agent, bleach, etc. in an accurate concentration according to the purpose of various places of use.
The present invention supplies a disinfectant stock solution to the diluter side by using a quantitative control pump capable of adjusting the pumping amount by varying the RPM according to various concentration settings, and in connection with this, water that can be supplied by adjusting the flow rate of water suitable for the concentration By adopting a method of supplying water to the diluter side through a supply, it is possible to accurately quantify and dilute the disinfectant stock solution of the desired concentration for each purpose to produce the level of sterilization water required in various places of use, while two branch pipes having the same diameter In addition to supplying water using a new piping structure in which a bypass pipe is installed between one branch pipe side at the point where two branch pipes join, it is possible to prevent pulsation caused by reverse flow of water, and thus A sterilizing water dilution device with a backflow prevention function capable of supplying water at a precisely controlled flow rate is provided.

Description

Sterilizing water dilution device with backflow prevention function {STERILE WATER DILUTION DEVICE HAVING THE FUNCTION OF PREVENTING BACK FLOW}

The present invention relates to a sterilizing water dilution device, and more particularly, provides a disinfectant stock solution and water used as a sterilizing disinfectant, oxidizing agent, bleach, etc. in an accurate concentration according to the purpose of various places of use and supplies them, as well as preventing backflow. It is about a sterilizing water dilution device equipped with.

In general, sodium hypochlorite (NaOCl) is used in water treatment plants, sterilizers in sewage treatment plants, cooling water boilers in general chemical plants, desalination process water, cooling water treatment in power plants, drinking water treatment, plants and vegetables, meat processing, washing and papermaking in swimming pools. It is a chlorine-based disinfectant in the form of a colorless and transparent liquid used as household bleach.

In the non-diaphragm type sodium hypochlorite generator used to manufacture sodium hypochlorite, after precipitating a large amount of salt in water of a certain amount and pressure, 28 to 30% of the salt is melted when maintained for 8 hours or more and less than 24 hours , The saturated brine in which salt is melted in a certain amount and pressure is mixed with a pump to make diluted brine that maintains a salinity of 2.8 to 3.0%, and then a series of electrodes (anode, cathode) without a diaphragm (ion exchange membrane) The salt in the diluted brine is electrolyzed by the DC voltage applied to both sides of the electrode through the process of passing through the electrolysis tank having

For example, 2.8-3.0% of diluted brine introduced into the electrolysis device is dissociated into sodium ion (Na+) and chloride ion (Cl-), and the chloride ion is oxidized at the anode to become chlorine, and sodium Ions are reduced at the cathode to produce sodium, and the produced sodium reacts with water to form sodium hydroxide (NaOH and hydrogen, and then the chlorine generated at the anode reacts with the sodium hydroxide to produce sodium hypochlorite (NaOCl). .

Sodium hypochlorite produced in this way is a safe form of brine, and is used as a chlorine disinfection or oxidizing agent in sites that require disinfection or oxidation. Depending on the diluted brine, the production and concentration of sodium hypochlorite are determined.

In most conventional non-diaphragm sodium hypochlorite generators, a motorized on/off valve, pressure reducing valve or flow control valve is installed in the pipe connected between the tap or pipe where the existing water pressure is formed and the electrolysis tank to determine the flow rate and A way to control the pressure.

However, in this method, when the pressure in the pipe fluctuates, the flow rate and pressure of the water flowing into the electrolysis tank also fluctuates, so the concentration and production of sodium hypochlorite generated in the electrolysis tank vary, and when the quantity decreases rapidly, overheating occurs. As a result, the electrolyzer is heated and damaged.

In addition, if there is a power outage during the operation of the electrolysis tank, the open electric on-off valve does not close and water is continuously supplied to the inoperative electrolysis tank, thereby reducing the concentration of sodium hypochlorite already produced and stored in the storage tank or overflowing the storage tank. There is a problem.

In addition, in order to dilute a certain amount of water with sodium hypochlorite discharged from the electrolysis tank to obtain chlorine disinfection water of a desired concentration in response to the object to be cleaned, a flow control valve installed between the outlet of the water supply pump and the pipe where the disinfection water is used, and Since only one solenoid-type electric valve is installed in series connection, it is inconvenient to have to adjust the flow control valve one by one according to the purpose of use of the disinfectant.

In addition, when the sodium hypochlorite outlet of the electrolysis tank is connected to a separate sodium hypochlorite storage tank, a pump for supplying sodium hypochlorite is separately installed between the sodium hypochlorite storage tank and the piping where the disinfection water is used, and then In response, there is an inconvenience of having to adjust the supply of sodium hypochlorite, and there are problems such as an increase in production cost of the product due to the installation of a separate sodium hypochlorite storage tank and pump.

In view of this, the present inventor, in Publication No. 10-2020-0105252, accurately quantifies and dilutes the disinfectant stock solution at the desired concentration for each use, thereby producing a "sterilizing water dilution device" that can produce sterilized water at a level required by various places of use. has presented

However, since the “sterilized water dilution device” is a method of supplying water through two pipes of different diameters, the flow rate, flow rate, and hydraulic pressure of each pipe are different, and in this case, when pressure is applied at the pipe joining section , The water at this time flows back toward the pipe with a small diameter and causes a pulsation phenomenon. As a result, it is difficult to accurately and constantly control the dilution ratio because an appropriate amount of water cannot be supplied.

Publication No. 10-2020-0105252 Patent Publication No. 10-20110026075 Registered Patent Publication No. 10-0761311 Registered Patent Publication No. 10-0706215 Japanese Unexamined Patent Publication No. 2004-305813 Japanese Unexamined Utility Model Publication No. 06-074145

Therefore, the present invention has been devised in view of this point, and supplies a disinfectant stock solution to the diluter side by using a quantitative control pump capable of adjusting the pumping amount by varying the RPM according to various concentration settings, and in connection with this By adopting a method of supplying water to the diluter side through a water supply that can supply by adjusting the flow rate of water suitable for the concentration, it is possible to accurately quantify and dilute the disinfectant stock solution of the desired concentration for each purpose to produce sterilized water at the level required by various places of use. On the other hand, in addition to supplying water using two branch pipes having the same diameter, by applying a new piping structure in which a bypass pipe is installed between one branch pipe side at the point where the two branch pipes join, It is an object of the present invention to provide a sterilizing water dilution device having a backflow prevention function capable of preventing pulsation due to backflow and thus supplying water at an accurately controlled flow rate.

In addition, another object of the present invention is to install a branch pipe and a manual control valve that can finely adjust the flow rate on the pipe line for supplying water to meet the various dilution ratios required by the place of use, and at the same time, the initial setting of the device It is an object of the present invention to provide a sterilizing water dilution device with a backflow prevention function that can reduce the effort and time required.

In order to achieve the above object, the sterilizing water dilution device having a backflow prevention function provided by the present invention has the following characteristics.

The sterilizing water dilution device with the backflow prevention function is equipped with a water inlet for water inflow, a sterilizing stock solution inlet for sterilizing stock solution inflow, and a sterilizing water outlet for sterilizing water discharge, and has a rectangular case shape with an openable cover. A main body of the device and a means for supplying water to the side of the diluent while being connected to the water inlet while being installed inside the main body of the dilution device, and having the same diameter as a first integrated pipe connected to the water inlet and diverging from the first integrated pipe. A first branch pipe and a second branch pipe formed of, a first solenoid valve and a second solenoid valve installed at the tip sections of the first branch pipe and the second branch pipe to control the flow of water, and the first branch pipe and a first manually operated valve and a second manually operated valve installed at the rear section of the second branch pipe, exposed to the outside of the main body of the dilution device so as to be manually operated and controlling the amount of water flow, the first branch A water supplier including a second integrated pipe connected to the diluter side while being joined by the pipe and the second branch pipe, and a flowmeter installed on the second integrated pipe to measure the flow rate of water, installed inside the dilution device body Quantitative control pump having a disinfection stock solution inlet pipe connected to the disinfection stock solution inlet side and a disinfection stock solution discharge pipe connected to the diluent side, supplying the disinfection stock solution to the diluter, and adjusting the pumping amount by changing the RPM according to the set value. And, it is installed inside the main body of the dilution device and has a water inlet at the rear end connected to the water supply side, a disinfectant stock solution inlet at the top connected to the metering control pump side, and a sterilizing water outlet at the front end to dilute water and disinfectant stock solution It includes a diluter and a control unit installed inside the dilution device body and controlling the operation of the metering control pump.

In particular, the sterilizing water dilution device with the backflow prevention function is installed between the second integrated pipe and the second branch pipe, and the water flowing back due to the pressure applied to the section to which the second integrated pipe belongs is transferred to the second branch pipe. It may further include a bypass pipe for passing and a bypass valve installed on the bypass pipe.

As a preferred embodiment, the sterilizing water dilution device having a backflow prevention function is made of a relatively small diameter compared to the first branch pipe and the second branch pipe and is branched from the first integrated pipe and connected to the second integrated pipe for flow control. A piping, a flow control solenoid valve installed at the front section of the flow control pipe to control the flow of water, and a flow control solenoid valve installed at the rear end section of the flow control pipe, which is exposed to the outside of the dilution device body and is installed to enable manual operation It may further include a fine flow control device composed of a manually operated valve for adjusting the flow rate to enable fine control of the flow rate.

Here, the sterilizing water dilution device equipped with the backflow prevention function is installed in the disinfection stock solution inlet pipe and the disinfection stock solution discharge pipe of the quantitative control pump, detecting the flow of the disinfection stock solution, and then transmitting the detection signal at this time to the controller. Fluid flow detection A sensor may be further included.

In addition, it is preferable that the disinfection stock solution inflow pipe and the disinfection stock solution discharge pipe of the quantitative control pump are made of transparent pipes so that the flow of the disinfection stock solution can be visually confirmed.

The sterilizing water dilution device with backflow prevention function provided by the present invention has the following effects.

First, by using a quantitative control pump that can adjust the pumping amount by changing the RPM according to various concentration settings, the disinfectant solution is supplied to the dilution device, and in conjunction with this, through a water supply that can supply the flow rate of water suitable for the concentration. By adopting a method of supplying water to the diluter side, there is an effect of producing sterilized water at a level required by various places of use by accurately quantifying and diluting the disinfectant stock solution of the desired concentration for each purpose.

Second, in addition to supplying water using two branch pipes having the same diameter, by applying a new piping structure in which a bypass pipe is installed between one branch pipe side at the point where the two branch pipes join, It has the effect of supplying water at a precisely controlled flow rate, such as preventing pulsation caused by water flow.

Third, by installing a branch pipe and a manual control valve that can finely adjust the flow rate on the pipe line for water supply, it is possible to meet various dilution ratios required by the place of use, and the labor required for setting work even during the initial setting of the device , and at the same time, it has the effect of reducing time.

Fourth, by realizing a structure in which a quantitative control pump, a diluter, a control unit, a water supplier, and various piping are installed inside the main body of the dilution device in the form of a square case, the overall size can be reduced as well as the structure can be simplified. It is easy and can reduce manufacturing cost, and it is very easy to install as well as handling on site (if you connect only the water supply pipe and the disinfectant stock solution supply pipe to the dilution device body at the site, it can be installed quickly and easily), and the dilution device body It has the effect of improving operability and handling by installing a manual control valve that can be manually operated by the operator as well as a display window that can check the operation status on the outside of the machine.

1 to 3 are perspective views showing a sterilizing water dilution device having a backflow prevention function according to an embodiment of the present invention.
Figure 4 is a schematic diagram showing the operating state of the sterilizing water dilution device equipped with a backflow prevention function according to an embodiment of the present invention

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

1 to 3 are perspective views illustrating a sterilizing water dilution device having a backflow prevention function according to an embodiment of the present invention.

As shown in FIGS. 1 to 3, the sterilizing water dilution device equipped with the backflow prevention function can accurately measure and then dilute and supply the sterilizing water at the concentration required for various places of use, as well as having a rectangular case shape. It consists of a structure in which a quantitative control pump, diluter, control unit, water supplier, and various piping are installed inside the main body of the dilution device, so installation and handling are simple and efficient. It is characterized by being able to supply accurate and stable flow rate.

To this end, the sterilizing water dilution device having a backflow prevention function includes a dilution device main body 14 having a rectangular case shape.

A cover 13 that can be opened and closed while rotating around a hinge (not shown) is installed on the front of the dilution device body 14, and the cover 13 installed in this way has flow rate, concentration, power ON/OFF, A display window 29 is provided to display various operating states of the device, such as valve operating states and the like.

A water inlet 10 is installed on one side of the dilution device body 14, and a water pipe (reference numeral 38 in FIG. 4) or a purified water pipe (not shown) can be connected to the water inlet 10 at this time. .

In addition, a disinfection stock solution inlet 11 is installed below the other side of the dilution device main body 14, and at this time, the disinfection stock solution inlet 11 extends from the disinfection stock solution tank (reference numeral 30 in FIG. 4) to be described later. The disinfectant stock solution pipe (reference numeral 31 in FIG. 4) can be connected.

In addition, a sterilizing water outlet 12 is installed on the upper side of the other side of the dilution device body 14, and the sterilizing water discharged from the sterilizing water outlet 12 at this time, that is, the sterilizing water diluted to an appropriate concentration for each use It can be supplied to multiple uses.

The dilution device body 14 has a size of about 300 to 350 mm × 150 to 200 mm × 250 to 300 mm in width × length × height. It is convenient and has the advantage of not taking up too much space.

In addition, the sterilizing water dilution device having the backflow prevention function includes a water supply device 16 installed inside the dilution device main body 14 to supply water to the diluter 15 side.

The water supplier 16 adopts a dual-line piping method, so that the user can freely select and easily adjust the flow rate.

To this end, the water supplier 16 includes a first integrated pipe 16a connected to the water inlet 10, a first branch pipe 16b branched from the first integrated pipe 16a, and a second branch pipe ( 16c), a first solenoid valve 16d and a second solenoid valve 16e installed at the tip sections of the first branch pipe 16b and the second branch pipe 16c to control the flow of water ON/OFF, A first manually operated valve 16f and a second manually operated valve 16g installed in the rear section of the first branch pipe 16b and the second branch pipe 16c to adjust the flow rate of water, and the first branch pipe 16c. A second integrated pipe 16h connected to the diluter 15 side while being joined by the pipe 16b and the second branch pipe 16c, and a flowmeter installed on the second integrated pipe 16h to measure the flow rate of water ( 16i).

Accordingly, the water entering from the water inlet 10 can be sent to the diluter 15 while being adjusted to an appropriate flow rate along with the flow along an appropriate path.

For example, a first integrated pipe 16a extends from the water inlet 10 of the dilution device body 14, and a first branch pipe 16b and a second branch pipe extend from the first integrated pipe 16a. (16c) are branched, respectively, and the first branch pipe (16b) and the second branch pipe (16c) are combined into a second integrated pipe (16h), and the second integrated pipe (16h) at this time is a diluter (15 ) is connected to the water inlet 20.

In addition, a first solenoid valve 16d and a second solenoid valve 16e are installed in the front section of the first branch pipe 16b and the second branch pipe 16c, respectively, and at the same time, a first manually operated valve is installed in the rear section. 16f and a second manually operated valve 16g are installed, and a flow meter 16i is installed on the second integrated pipe 16h.

Here, it is preferable to install a check valve 32a for preventing a reverse flow of water on the second integrated pipe 16h.

In addition, the control knob of the first manually operated valve 16f installed in the first branch pipe 16b and the knob knob of the second manually operated valve 16g installed in the second branch pipe 16b It penetrates the other side of the dilution device body 14 and is exposed to the outside.

Accordingly, the user can use the control knob of the first manually operated valve 16f and the second manually operated valve 16g protruding from the outside of the diluting device body 14 even without opening the cover 13 of the diluting device body 14. ) It is possible to manually adjust the flow rate of water flowing through each of the first branch pipe 16b and the second branch pipe 16c by selectively manipulating the control knob.

Of course, the user selectively manipulates each control knob while checking the flow rate value and concentration value displayed on the display window 29 of the cover 13 to each of the first branch pipe 16b and the second branch pipe 16c. ), the flow rate of the flowing water can be manually adjusted.

At this time, the first manually operated valve 16f and the second manually operated valve 16g are of a type that opens and closes the valve passage while a valve body (not shown) rotates or moves up and down when a user turns a knob, a ball valve, Types such as disc valves and gate valves can be applied.

Here, the first branch pipe 16b and the second branch pipe 16c are made of pipes of the same diameter, and accordingly, the flow rate, flow rate, and hydraulic pressure of water flowing through each pipe become the same, so that the second integrated pipe Even when a pressure change occurs in the section on the (16h) side, it is possible to prevent a phenomenon in which pressure is concentrated only in one pipe.

In addition, the sterilizing water dilution device having the function of preventing backflow includes a fine flow control device 36 as a means for finely adjusting the flow rate to adjust various concentrations of the sterilizing water.

The micro flow control device 36 has a relatively small diameter compared to the first branch pipe 16b and the second branch pipe 16c and is branched from the first integrated pipe 16a to form a second integrated pipe 16h. A flow control pipe 26 connected to, a flow control solenoid valve 27 installed in the front section of the flow control pipe 25 to regulate the flow of water, and a flow control pipe 25. Installed in the rear end section, It is composed of a manually operated valve 35 for adjusting the flow rate, which is exposed to the outside of the dilution device body 14 and is installed to allow manual manipulation to enable fine adjustment of the flow rate.

That is, the first integrated pipe 16a extends from the water inlet 10 of the dilution device body 14, the flow control pipe 26 is branched from the first integrated pipe 16a, and the flow control pipe (26) is merged into the second integrated pipe (16h).

In addition, a flow control solenoid valve 27 is installed at the front section of the flow control pipe 26, and a manual valve 35 for flow control is installed at the rear end section.

In addition, the knob of the manual valve 35 for adjusting the flow rate installed in the pipe 26 for adjusting the flow rate penetrates the other side of the body 14 of the dilution device and is exposed to the outside.

Accordingly, the user selectively operates the control knob of the manual control valve 35 for flow control protruding from the outside of the dilution device main body 14 without opening the cover 13 of the dilution device main body 14 to control the flow rate. It is possible to manually adjust the flow rate of water flowing through (26).

Of course, the user selectively turns each control knob of the first manually operated valve 16f and the second manually operated valve 16g while checking the flow rate value and the concentration value displayed on the display window 29 of the cover 13. In a state in which the flow rate of water flowing through each of the first branch pipe 16b and the second branch pipe 16c is manually adjusted by operation, the manual operation valve 35 for flow control is operated to make a relatively small diameter pipe. By manually finely adjusting the flow rate of water flowing through the flow control pipe 26 through which a small flow rate flows, it is possible to finely adjust the preset flow rate (flow rate associated with the preset dilution water concentration).

At this time, the manually operated valve 35 for adjusting the flow rate is a type that opens and closes the valve flow path while the valve body (not shown) rotates or moves up and down when the user turns the knob, and types such as ball valves, disk valves, gate valves, etc. can be applied

In this way, when adjusting the concentration of the sterilizing water, it is possible to easily, subdivide, and precisely control and supply the appropriate amount of water suitable for the concentration using the micro flow control device 36.

For example, the flow control pipe 26 may be made of a pipe having a relatively small diameter compared to the first branch pipe 16b and the second branch pipe 16c.

Accordingly, when the concentration of the disinfecting stock solution is adjusted in the range of 10 to 500 ppm, the flow rate of water flowing through the first branch pipe 16b and the second branch pipe 16c having a relatively large diameter can be adjusted, and the disinfection stock solution When the concentration of is adjusted to a range of 5,000 ppm or more, it is possible to control the flow rate of water flowing through the flow control pipe 26 having a relatively small diameter.

By adopting a method of adjusting the flow rate of water by operating the first branch pipe 16b and the second branch pipe 16c and the flow rate control pipe 26 in parallel, the flow rate of water is linked to the concentration value of the disinfectant stock solution. There is an advantage in terms of the efficiency of controlling .

In addition, the sterilizing water dilution device equipped with the backflow prevention function includes a bypass pipe 24 and a bypass valve 25 as means for supplying water at an accurately controlled flow rate by preventing pulsation caused by reverse flow of water. .

The bypass pipe 24 is one side of the second integrated pipe 16h, for example, between the point where the first branch pipe 16b and the second branch pipe 16c join and the point where the flowmeter 16i is installed. It is installed between the position of and the predetermined position of the second branch pipe 16c, and accordingly, the water flowing backward on the second integrated pipe 16h by the pressure applied to the section to which the second integrated pipe 16h belongs. can be bypassed to the front section of the second branch pipe 16c through the bypass pipe 24.

The bypass valve 25 may be installed on the bypass pipe 24, and the bypass valve 25 opens and closes manually or automatically to regulate water flowing through the bypass pipe 24. do.

Therefore, when excessive pressure is applied on the second integrated pipe 16h, the water flowing back at this time is bypassed along the bypass pipe 24 to the second branch pipe 16c side, and the first branch pipe 16b Section or second branch pipe (16c) section or flow control pipe (26) section, section where the first branch pipe (16b) and second branch pipe (16c) join, flow control pipe on the second integrated pipe (16h) It is possible to fundamentally prevent the pulsation phenomenon from occurring in the section where (26) joins, and accordingly, water properly adjusted to the preset flow rate can show a smooth flow in each pipe, and eventually an appropriate amount of water is supplied. The dilution rate of the dilution water can be accurately and constantly controlled.

In addition, the bypass valve 25 for the flow control valve 26 can be made of a solenoid valve controlled by the control unit 23, a manually operated valve that can be manually operated by a worker, and the like.

In the case where the flow control valve 26 is made of a manually operated valve, when the sterilizing water dilution device is initially set, the operator opens the manual operated valve to bypass the flow rate, and from the water supplier 16 side By adjusting the flow rate of the supplied water, the first branch pipe (16h) of the water supplier 16, the second branch pipe (16c), flow rate control without being affected by the pressure change on the second integrated pipe (16h) The flow rate supplied through the pipe 26 can be easily and precisely adjusted.

When the flow control valve 26 is made of a solenoid valve that operates under the control of the control unit 23, when the sterilizing water dilution device is operated with the water supplied at a preset dilution ratio, the second integrated pipe (16h) ), when an excessive pressure higher than the preset pressure is generated, a sensor (not shown) installed on the second integrated pipe 16h detects this, and the signal of the sensor thus detected is sent to the control unit 23. In addition to being input, the solenoid valve is opened by the output control of the control unit 23 at this time so that the water flowing backward is bypassed, so that at this time, the water is not affected at all by the pressure change on the second integrated pipe 16h. Through the first branch pipe (16h), the second branch pipe (16c), and the flow control pipe (26) of the feeder (16), the precisely adjusted flow rate can be stably supplied, and eventually the predetermined dilution ratio of the sterilizing water This can be maintained continuously without change.

In addition, the sterilizing water dilution device having the backflow prevention function includes a metering control pump 19 as a means for pumping the disinfectant stock solution toward the diluter 15.

The quantitative control pump 19 serves to pump the disinfectant stock solution provided from the disinfectant stock solution tank 30 and supply it to the diluter 15 side.

The quantitative control pump 19 is installed inside the dilution device main body 14, and the disinfection stock solution inlet pipe 17 is connected to the suction side of the pump, and the disinfection stock solution discharge pipe 18 is connected to the pump discharge side.

At this time, the disinfection stock solution inlet pipe 17 is connected to the disinfection stock solution inlet 11 of the dilution device body 14, and the disinfection stock solution discharge pipe 18 is connected to the disinfection stock solution inlet 21 of the diluter 15. .

Accordingly, when the quantitative control pump 19 is operated, the disinfectant stock solution is sucked into the pump side through the disinfection stock solution inlet 11 and then continuously supplied to the diluter 15 through the disinfection stock solution discharge pipe 18. there will be

Here, it is preferable to install a check valve (reference numeral 32b in FIG. 4 ) for preventing the reverse flow of the disinfecting stock solution to the disinfection stock solution discharge pipe 18 of the quantitative control pump 19.

In particular, the metering control pump 19 is controlled by the control unit 23 and is characterized in that the pumping amount can be adjusted while changing the RPM according to the set value.

For example, when the user sets the sterilizing water concentration value by manipulating the operation panel (not shown) according to the sterilizing water concentration value (disinfection stock solution concentration value) desired at the place of use, the control unit that inputs the set value at this time By controlling the number of revolutions of the metering control pump 19 by controlling the output of 23), the pumping speed (supply flow rate) of the disinfectant stock solution can be adjusted.

Such a quantitative control pump 19 can accurately control the pumping amount while being connected to the concentration of the disinfectant stock solution, for example, a concentration in the range of 10 to 500 ppm or a concentration of 5,000 ppm or more.

In addition, the disinfection stock solution inlet pipe 17 and the disinfection stock solution discharge pipe 18 of the quantitative control pump 19 are made of transparent pipes, and accordingly, to check the supply status of the disinfection stock solution through the display window 29 Even in difficult situations, the user can easily check the supply state of the disinfectant stock solution flowing through the disinfectant stock solution inflow pipe 17 and the disinfection stock solution discharge pipe 18 made of transparent tubes with the naked eye.

In addition, the sterilizing water dilution device having the backflow prevention function includes a diluter 15 as a means for substantially uniformly mixing the disinfectant stock solution and water.

The diluter 15 is formed in the form of a hollow square box having a water inlet 20 at the rear end, a stock disinfection solution inlet 21 at the bottom, and a sterilizing water outlet 22 at the front end, and the inside of the dilution device body 14 installed on

And, the internal space of the diluter 15 can communicate with the water inlet 20, the disinfectant stock solution inlet 21, and the sterilizing water outlet 22.

Here, the water inlet 20 formed in the diluter 15 is connected to the second integrated pipe 16h of the water supply 16, and the disinfection stock solution inlet 21 is disinfected by the metering control pump 19 It is connected to the undiluted solution discharge pipe 18, and the sterilizing water outlet 22 is connected to the sterilizing water outlet 12 of the main body 14 of the dilution device.

Accordingly, the water and disinfectant stock solution introduced through the water inlet 20 and the disinfectant stock solution inlet 21 are mixed and diluted in the diluter 15, and the diluted sterilized water is passed through the sterilized water outlet 22. It is possible to exit the diluter (15).

In particular, the diluter 15 includes a rotary orifice (reference numeral 33 in FIG. 4 ) that serves to ensure that the water and the disinfectant stock solution are evenly mixed evenly during dilution of the water and the disinfectant stock solution.

The rotary orifice 33 is formed in the shape of a disk, and at this time, the rotary orifice 33 has a plurality of holes (not shown) that penetrate the thickness of the disk while being disposed along the center of the disk and the edge of the disk at regular intervals. is formed

The rotary orifice 33 is inserted and installed coaxially with the main body side of the diluent in the space of the diluter 15, and can be freely rotated by the flow of water and disinfectant stock solution flowing inside the diluter 15. .

As the rotary orifice 33 rotates around its axis inside the diluter 15, it is possible to induce a vortex in the flow of water and disinfection stock solution, and eventually water and disinfection by this vortex flow As the agitation of the stock solution is actively performed, the water and the stock solution for disinfection can be uniformly and evenly diluted.

In addition, a pressure release device (reference numeral 37 in FIG. 4) is installed on the discharge side of the diluter 15, and the pressure release device 37 installed in this way maintains pressure in the system only when the device is operating and operates the device. When stopped, the pressure in the system is released to extend the durability and lifespan of the device.

In addition, the sterilizing water dilution device with the backflow prevention function includes a control unit 23 as a means for controlling the operation of various devices belonging to the device while being installed inside the dilution device main body 14, and this control unit 23 Various controls can be performed.

For example, the control unit 23 controls the number of revolutions of the metering control pump 23 based on a preset concentration value, or controls the flow of water through a first solenoid valve 16d and a second solenoid valve. (16e), and controls the ON/OFF operation of the flow control solenoid valve 27, the bypass valve 25, etc., or operates and alarms the device based on the detection signal input from the fluid flow detection sensor 28 It is possible to perform control such as controlling sound generation or displaying numerical values input from the flow meter 16i on the display window 29 .

In addition, the sterilizing water dilution device having the backflow prevention function includes a fluid flow sensor 28 as a means for detecting whether or not the disinfectant stock solution flows.

The fluid flow detection sensor 28 is installed in the disinfection stock solution inlet pipe 17 and/or the disinfection stock solution discharge pipe 18 of the quantitative control pump 19, and the fluid detection sensor 28 installed in this way flows through the pipe. After detecting the flow of the disinfectant stock solution, the detection signal at this time can be transmitted to the control unit 23.

Accordingly, the controller 23 receives a detection signal from the fluid flow detection sensor 28, for example, an ON signal when the disinfectant stock solution flows normally and an OFF signal when the disinfectant stock solution does not flow. When an OFF signal from the sensor 28 is input, it is possible to perform control to stop the operation of the device or to sound an alarm.

In this way, the detection signal provided from the fluid flow detection sensor 28 as well as the disinfection stock solution inflow pipe 17 and the disinfection stock solution discharge pipe 18, which are made of the transparent tube, are visually checked for abnormalities related to the flow of the disinfection stock solution. By checking the presence or absence, it is possible to protect the device by preventing the device from operating when the disinfectant stock solution is exhausted, as well as to secure the convenience and efficiency of device operation by replenishing the disinfectant stock solution at the right time. do.

Here, as the fluid flow detection sensor 28, a known sensor for detecting fluid flow in the pipe may be applied.

4 is a schematic diagram showing an operating state of a sterilizing water dilution device having a backflow prevention function according to an embodiment of the present invention.

As shown in FIG. 4, the sterilizing water dilution device having the backflow prevention function is connected to the disinfection stock solution tank 30 side and the water supply pipe 38 side, respectively, so that the disinfection stock solution and water can be supplied.

Here, the disinfection stock solution tank 30 is a general tank capable of periodically replenishing the disinfection stock solution and storing a certain amount of the disinfection stock solution, and the disinfection stock solution pipe 31 extending from the inside of the tank to the top is the dilution device body ( It is connected to the disinfection stock solution inlet 11 of 14).

In addition, the inside of the disinfection stock solution tank 30 is equipped with a pump on the disinfection stock solution pipe 31 so that the disinfection stock solution can be pumped and discharged through the disinfection stock solution pipe 31, and also on the disinfection stock solution pipe 31 Since the filter is equipped, it is possible to filter foreign substances contained in the disinfectant stock solution.

On the other hand, a bleed control device 34 is connected to the disinfection stock solution tank 30, and the bleed control device 34 at this time is a device for dehumidifying and sterilizing the air, and controls the air introduced into the disinfection stock solution tank 30. It acts as a pre-humidifying and disinfecting treatment.

Therefore, the disinfection stock solution supplied from the disinfection stock solution tank 30 is disinfected stock solution pipe 31 → disinfection stock solution inlet 11 → disinfection stock solution inlet pipe 17 → quantitative control pump 19 → disinfection stock solution discharge pipe 18 ) → After passing through the disinfection solution inlet 21, it flows into the diluent 15, while the water supplied from the water pipe 38 is water inlet 10 → water supplier 16 → water inlet After passing through (20), it flows into the diluent (15).

At this time, the water flow rate and the disinfection stock solution flow rate adjusted according to the preset concentration can be introduced into the diluter body 25.

Subsequently, the water and disinfectant stock solution introduced into the diluter 15 cause a vortex by the rotational operation of the rotary orifice 33, and accordingly, the water and disinfectant stock solution inside the diluter 15 It can be mixed quickly and sufficiently, and the uniformly mixed (diluted) water and the disinfectant stock solution, that is, the sterilizing water adjusted to the desired concentration at the place of use, are sent to each place of use through the sterilization water outlet 12 and used according to the purpose. be able to

In particular, when excessive pressure is applied on the second integrated pipe 16h to which the flowmeter 16i and the like belong, the flow rate reversed by the pressure at this time passes through the bypass pipe 24 to the second branch pipe 16c. Since it is bypassed to the side, it is possible to completely exclude the pulsation phenomenon due to the reverse flow of water, and eventually, an appropriate amount of water required for adjusting the dilution water concentration can be supplied.

On the other hand, during the initial setting of the sterilizing water diluter to adjust the dilution ratio of the sterilizing water, the first branch pipe 16b and the second branch pipe 16c having a relatively large diameter are left in the ON state and relatively extinguished. The diameter of the flow control pipe 26 can be set in the OFF state and the water supply amount can be set, or the first branch pipe 16b is turned ON, and the second branch pipe 16c and the flow control pipe 26 can set the water supply amount while leaving it in the OFF state, or set the water supply amount while leaving the first branch pipe 16b and the second branch pipe 16c in the OFF state and leaving the flow control pipe 26 in the ON state can do.

In this way, since the flow rate can be adjusted while appropriately and selectively turning ON/OFF the three pipes of the first branch pipe 16b, the second branch pipe 16c, and the flow control pipe 26, sterilization of various and wide range bands is possible. The number concentration value (disinfection stock solution concentration value) can be adjusted, and the sterilization water concentration value (disinfection stock solution concentration value) can be subdivided into fine units and adjusted.

In particular, since the flow rate of water can be finely adjusted using the flow rate control pipe 26 having a relatively small diameter, it is very advantageous to balance the flow rate at the initial setting.

As such, in the present invention, the disinfectant stock solution is supplied to the diluter side through a quantitative control pump capable of adjusting the pumping amount by varying the RPM according to various concentration settings, and in connection with this, the flow rate of water suitable for the concentration can be adjusted and supplied. By adopting a method of supplying water to the diluter side through a water supply device located inside, it is possible to accurately quantify and dilute the disinfectant stock solution at the concentration for each purpose to produce sterilized water of the desired concentration at each use point. In addition to supplying water using a pipe, by installing a bypass pipe between the side of one branch pipe at the point where two branch pipes join, it is possible to prevent pulsation caused by reverse flow of water. water can be supplied.

10: water inlet
11: disinfection stock solution inlet
12: sterilizing water outlet
13 : cover
14: dilution device body
15: Diluter
16: water supply
16a: first integrated pipe 16b: first branch pipe
16c: second branch piping 16d: first solenoid valve
16e: second solenoid valve 16f: first manually operated valve
16g: 2nd manually operated valve 16h: 2nd integrated pipe
16i: flow meter
17: Disinfection stock solution inlet pipe
18: Disinfection liquid discharge pipe
19: quantitative control pump
20: water inlet
21: disinfection stock solution entrance
22: sterilizing water outlet
23: control unit
24: bypass piping
25: bypass valve
26: piping for flow control
27: solenoid valve for flow control
28: fluid flow sensor
29: display window
30: Disinfection stock solution tank
31: Disinfection stock solution piping
32a, 32b: check valve
33: rotary orifice
34: breath control device
35: Manually operated valve for flow control
36: fine flow control device
37: pressure release device
38: water pipe

Claims (4)

It is equipped with a water inlet (10) for water inflow, a disinfectant stock solution inlet (11) for disinfection stock solution inflow, and a sterilizing water outlet (12) for sterilizing water discharge, and consists of a square case having an openable cover (13). Dilution device body 14;
A first integrated pipe 16a connected to the water inlet 10 as a means for supplying water to the diluter 15 by being installed inside the dilution device body 14 and connected to the water inlet 10; The ends of the first branch pipe 16b and the second branch pipe 16c branched from the first integrated pipe 16a and having the same diameter, and the first branch pipe 16b and the second branch pipe 16c. The first solenoid valve 16d and the second solenoid valve 16e installed in each section to regulate the flow of water and the rear end sections of the first branch pipe 16b and the second branch pipe 16c are respectively installed. , the first manually operated valve 16f and the second manually operated valve 16g, which are exposed to the outside of the dilution device main body 14 and are installed to be manually operated to adjust the flow rate of water, and the first branch pipe 16b ) And a second integrated pipe 16h connected to the diluter 15 side while joining in the second branch pipe 16c, and a flowmeter 16i installed on the second integrated pipe 16h to measure the flow rate of water A water supplier 16 including a;
Disinfection while having a disinfection stock solution inlet pipe 17 installed inside the dilution device body 14 and connected to the disinfection stock solution inlet 11 side and a disinfection stock solution discharge pipe 18 connected to the diluter 15 side A constant control pump (19) that supplies the stock solution to the diluter (15) and adjusts the pumping amount by varying the RPM according to the set value;
The water inlet 20 at the rear end connected to the water supplier 16 side installed inside the dilution device body 14 and the disinfection stock solution inlet 21 at the top connected to the metering control pump 19 side, and the front end Diluter 15 for diluting water and disinfectant stock solution while having a sterilizing water outlet 22;
A control unit 23 installed inside the dilution device main body 14 and controlling the operation of the metering control pump 19;
Including,
It is connected and installed between the second integrated pipe 16h and the second branch pipe 16c, and the water flowing back due to the pressure applied to the section to which the second integrated pipe 16h belongs is transferred to the second branch pipe 16c. Further comprising a bypass pipe 24 for passing and a bypass valve 25 installed on the bypass pipe 24,
The flow control pipe 26 branched from the first integrated pipe 16a and connected to the second integrated pipe 16h while having a relatively smaller diameter than the first branch pipe 16b and the second branch pipe 16c. ), a flow control solenoid valve 27 installed in the front section of the flow control pipe 26 to control the flow of water, and a flow control solenoid valve 27 installed in the rear section of the flow control pipe 26, the dilution device main body 14 Further comprising a fine flow control device 36 composed of a manual control valve 35 for flow control that is exposed to the outside and is manually operated to enable fine control of the flow rate,
The first branch pipe 16b and the second branch pipe 16c are made of pipes of the same diameter, and accordingly, the flow rate, flow rate, and hydraulic pressure of water flowing through each pipe become the same, so that the second integrated pipe 16h Sterilized water dilution device with a backflow prevention function, characterized in that it is possible to prevent the pressure from being biased to only one pipe even when pressure changes occur in the section on the ) side.
delete The method of claim 1,
Fluid flow detection installed in the disinfection stock solution inlet pipe 17 and disinfection stock solution discharge pipe 18 of the quantitative control pump 19 to detect the flow of the disinfection stock solution and transmit the detection signal at this time to the control unit 23 A sterilizing water dilution device with a backflow prevention function, characterized in that it further comprises a sensor (28). delete

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