KR101388004B1 - Purification system that provided additional plasma disinfection and its control method - Google Patents

Abstract

The present invention relates to a water purification system for outputting water after purifying raw water (W) into drinking water (W1) for a user to be able to drink, comprising: a sediment filter part (10) to initially introduce the raw water (W); a first filter part (20) connected to the sediment filter part (10); a plasma sterilization part (30) in a box shape connected to the first filter part (20) and including a plasma generation module (31) inside; a second filter part (40) connected to the plasma sterilization part (30); a water output part (50) connected to the second filter part (40); a flow rate sensor (32) connected between the plasma sterilization part (30) and the second filter part (40); and a control part (60) connected to the flow rate sensor (32) and the plasma generation module (31). Therefore, the water purification system always maintains the amount of raw water by including the flow rate sensor to detect the flow rate of the drinking water in the water purification system and automatically compensating for the amount of raw water output, and automatically operates the water purification system by including the control part connected to the flow rate sensor and controlling the entire operation of the water purification system. [Reference numerals] (10) Sediment filter part; (20) First filter part; (30) Plasma sterilization part; (32) Flow rate sensor; (40) Second filter part; (51a) Heater; (52a) Cooling part; (60) Control part; (AA) Hot water; (BB) Room-temperature water; (CC) Cold water; (W) Raw water

Description

Purification system equipped with plasma sterilization unit and its control method {Purification system that provided additional Plasma disinfection and its control method}

The present invention relates to a water purification system equipped with a plasma sterilization unit and a control method thereof, and more particularly, a flow sensor and a control unit for detecting a flow rate of drinking water in the water purification system to automatically replenish the raw water of the water purification system. And a gas discharge device through which the gas is discharged to the plasma sterilization unit to prevent the sterilized drinking water from being deteriorated, and the water purification system having the plasma sterilization unit to which the electrodes are variably applied to prevent unbalanced wear on the plurality of electrode plates. And a control method thereof.

In general, water cleaners eat raw water, such as tap water, through physical, chemical or biological processes, or through a combination of these processes. We say apparatus to meet water quality standard of water.

Conventional water purifiers can be classified in various ways according to the use, form, composition, principle, etc., according to the most common standards of water purification can be divided into natural filtration, direct filtration, distillation, reverse osmosis.

Here, the conventional natural filtration formula is a method of obtaining purified water through a filter with a certain amount of raw water by itself, the conventional direct filtration formula is a method of obtaining a purified water via a filter additionally provided at the supply pressure of raw water, The distillation method is a method of boiling raw water to collect water vapor to obtain purified water, and the conventional reverse osmosis method is a method of removing impurities contained in raw water using a semipermeable membrane called a membrane.

On the other hand, Korean Patent Publication No. 10-2013-00244534 has been disclosed as a technical document for a conventional water purifier, Figure 1 is a configuration diagram for a conventional water purifier for a conventional technical document.

The conventional water purifier, as shown in FIG. 1, an inlet unit 2 through which external raw water is delivered, a purifier 3 connected to the inlet unit 2 to convert the raw water into purified water, and the purifier A tank unit 4 connected to (3) to store the purified water, a water extraction unit 5 connected to the tank unit 4 to discharge the purified water to the outside, and connected to the inlet unit 2, It is composed of a plasma unit 6 for generating plasma with external power to generate sterilizing water.

The conventional water purifier proceeds to a process of filtering the raw water into drinking water by flowing raw water supplied into the purification unit 3 and passing through a plurality of filters. Thus, proper maintenance of the clarifier is a key issue in determining water quality.

However, the plasma unit 6 used in the conventional water purifier is disposed in the water purification line to generate sterilization water in the plasma unit instead of directly sterilizing the raw water, and then used for cleaning the water purification line using the sterilization water. There is a problem that the sterilization power of the raw water is greatly reduced since it does not interfere directly with the purification.

In addition, the conventional water purifier has a high possibility of occurrence of so-called dirt, or bacteria propagation in the purifier 3, the tank 4, the water outlet 5, and the like. There is no special countermeasure other than to do this, and this also has a problem of having to take the hassle and inconvenience.

In order to solve the problems with the conventional water purifier, a water purifier including a plasma generation module having a strong sterilization power has been developed, but the raw water sterilized by the plasma generation module is present in the external atmosphere while being stored in the tank unit 4. Recontamination occurs due to the microorganisms, and when a large amount of drinking water is withdrawn, the waiting time of the raw water in the plasma generating module becomes very short, and thus the raw water cannot be properly sterilized.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is to include a flow sensor for detecting the flow rate of drinking water in the water purification system to automatically replenish the raw water by the amount of raw water. Constantly adjusts the quantity at all times, is connected to the flow sensor and equipped with a control unit to control the overall operation of the water purification system to automatically operate the water purification system, forming a gas discharge device for discharging the gas to the plasma sterilization sterilized drinking water And a method of controlling the same, and a method of controlling the same, the plasma sterilizing unit of which the electrode plate is prevented from being deteriorated and the electrode applied to the electrode plate is variably applied to the forward electrode and the reverse electrode to prevent any one of the electrode plates from being worn unevenly. .

Purification system equipped with a plasma sterilization unit according to the present invention for achieving the above object is a water purification system for the purified water to be discharged by drinking water so that the user can drink raw water; A first filter part connected to the sediment filter part; A box-shaped plasma sterilization unit connected to the primary filter unit and having a plasma generation module therein; A second filter part connected to the plasma sterilizing part; A water extraction unit connected to the second filter unit; A flow rate sensor for detecting a flow rate of the drinking water discharged from the plasma sterilization unit between the plasma sterilization unit and the second filter unit; The water outlet is provided with a cup sensor for detecting whether the cup member is drawn; And a control unit connected to the flow sensor and the cup detection sensor to operate the water purification system so that the flow rate of the raw water filled in the plasma sterilization unit is constantly maintained at all times.

The plasma generating module is characterized by consisting of a plurality of electrode plate to which any one of the positive electrode or negative electrode is applied.

The plasma sterilization unit may be formed through a box-shaped plasma body having a space portion for accommodating the plasma generating module and moving the raw water, an inlet and an outlet connected to one surface of the plasma body, and the plasma generating module. Characterized in that consisting of a gas outlet formed in the upper portion to be discharged gas.

The gas discharge port is characterized in that it comprises a gas discharge device provided with a solenoid valve to discharge the gas generated therein.

The water extraction unit comprises a hot water extraction unit having a heater unit for heating drinking water, and a cold water extraction unit having a cooling unit for cooling drinking water; The cold water dispensing unit is characterized by consisting of a cold water dispenser for discharging drinking water cooled through the cooling unit, and a room temperature water dispenser for discharging drinking water at room temperature that does not pass through the cooling unit.

The control method of the water purification system equipped with a plasma sterilization unit according to the present invention for achieving the above object is a system operation step of operating the control unit by detecting whether the flow sensor and the cup sensor; An operation time detection step of detecting an operation holding time of the flow sensor and the cup detection sensor; A first comparing step of comparing a predetermined first predetermined time with the holding time; A forward electrode applying step of operating the plasma sterilizing unit by applying a forward electrode to the electrode plate when the holding time is less than the first designated time in the first comparing step; A second comparing step of comparing the predetermined second designated time with the holding time when the holding time is higher than the first designated time in the first comparing step; A reverse electrode applying step of operating the plasma sterilizing unit by applying a reverse electrode to the electrode plate when the holding time is smaller than the second designated time in the second comparing step; And a system returning step of resetting the holding time to zero and returning it to before the system operating step if the holding time is higher than the second designated time in the second comparing step.

As described above, the effect of the water purification system equipped with the plasma sterilization unit according to the present invention is as follows.

First, by providing a flow rate sensor for detecting the flow rate of drinking water discharged between the plasma sterilizer and the secondary filter unit, it is possible to supplement the raw water by the amount of the discharged water by detecting the amount of drinking water discharged from the plasma sterilizer. You can optimize the sterilization time of the raw water by constantly adjusting the raw water of the plasma sterilizer,

Second, it is connected to the flow sensor and equipped with a control unit for controlling the overall operation of the water purification system, it automatically operates the water purification system can be used by the user very conveniently,

Third, by forming a gas discharge device provided with a solenoid valve to discharge the gas generated from the plasma generating module in the plasma sterilization unit, to prevent the harmful gas in the atmosphere inside the plasma sterilization unit to prevent the deterioration of the sterilized drinking water To improve the quality of drinking water,

Fourth, by setting a control method in which the forward electrode and the reverse electrode are sequentially applied to the plasma generating module for a predetermined time, the electrode is applied in a single direction, thereby preventing any electrode plate from being worn unevenly. Therefore, the service life of the system can be greatly improved.

1 is a configuration diagram showing a conventional water purification system,
2 is a block diagram showing a water purification system according to the present invention,
3 is a perspective view showing a plasma sterilization unit of the water purification system according to the present invention;
4 is a cross-sectional view showing a cross-sectional view taken along the line A-A 'shown in FIG.
5 is a partial block diagram showing a filter unit according to the present invention,
6 is a flowchart illustrating a control method of a water purification system according to the present invention.

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

Purification system equipped with a plasma sterilization unit according to the present invention is a purified water system to clean the raw water (W) as drinking water (W1) so that the user can drink the raw water (W) as shown in Figures 2 and 5 In the water purification system that is purified by drinking water (W1) so that the user can drink,

A sediment filter unit 10 into which raw water W is first introduced; A first filter part 20 connected to the sediment filter part 10; A box-shaped plasma sterilization unit 30 connected to the primary filter unit 20 and having a plasma generation module 31 therein; A second filter part 40 connected to the plasma sterilizing part 30; It is composed of a water extraction unit 50 connected to the second filter unit 40.

Here, the sediment filter unit 10 is a filter made of high-density polypropylene of 5 μm or less and is a commercially available filter that guarantees normal activities of all components mounted to the rear of the filter by filtering foreign substances of 5 μm or more.

In addition, a flow rate sensor 32 is provided between the plasma sterilization unit 30 and the second filter unit 40 to detect the flow rate of the drinking water W1 discharged from the plasma sterilization unit 30. The water extraction unit 50 is provided with a cup sensor 37 for detecting whether the cup member (C) is drawn.

Here, the cup sensor 37 is connected to the cold water, the room temperature dispenser (52b, 52c) of the water extraction unit 50 is preferably able to detect the inflow of the cup member (C).

At this time, the control unit is connected to the flow rate sensor 32 and the cup sensor 37 to operate the water purification system so that the flow rate of the raw water (W) filled in the plasma sterilization unit 30 is always maintained ( 60);

Here, the control unit 60 is preferably provided with a CPU unit (not shown) for inputting and outputting signals for the operation of the electrical operation and water purification system, and a memory unit (not shown) for storing data.

On the other hand, the connection of the sediment filter unit 10 to the water extraction unit 50 is preferably formed of a fluid transfer pipe (not shown) to move the raw water (W) supplied.

Here, the control unit 60 has a supply valve (not shown) for opening and closing the raw water (W) supplied to the plasma sterilization unit 30 and a discharge valve for opening and closing to discharge the sterilized drinking water (W1) to the outside (not shown) When connected to) it is possible to maintain a constant flow rate of the raw water (W) filled in the inside of the plasma sterilization unit (30) at all times.

In addition, the flow sensor 32 is provided in the fluid transfer pipe (not shown) provided in the plasma sterilization unit 30 and the secondary filter unit 40, thereby drinking water discharged from the plasma sterilization unit 30 ( The amount of W1) can be detected and the raw water W can be replenished by the amount of water discharged, thereby preventing the plasma sterilization unit 30 from filling the raw water W.

In addition, the plasma generation module 31 includes a plurality of electrode plates 31a to which any one of a positive electrode and a negative electrode is applied.

In addition, the plasma sterilization unit 30 accommodates the plasma generation module 31 to which an external electrode is connected, and has a box-shaped plasma body 33 in which a space for moving the raw water W is formed, and the plasma. The inlet part 34 connected to one surface of the main body 33, the outlet part 35 and the outlet part 35 connected to the other side, and the gas G generated through the plasma generation module 31 are discharged. It is composed of a gas outlet 36 formed in the upper portion.

3 to 4, the plasma main body 33 has a perforated interior of a panel provided in the middle to accommodate the plasma generating module 31, and stack a panel sealing the upper and lower parts thereof. It is preferably formed.

In addition, the gas discharge port 36 includes a gas discharge device 36a provided with a solenoid valve V to discharge the gas G generated therein.

Meanwhile, as shown in FIG. 5, the first filter part 20 includes a precipitation filter 21 made of a nonwoven fabric, a carbon filter 22 containing activated carbon, and a ceramic filter 23 made of porous ceramic. , A hollow fiber membrane filter 24 using the hollow fiber membrane; Each receiving portion 20a in which the filters 21, 22, 23, 24 are accommodated is formed.

In addition, the secondary filter part 40 may include a precipitation filter 41 made of a nonwoven fabric, a carbon filter 42 containing activated carbon, a ceramic filter 43 made of porous ceramic, and a hollow fiber membrane using a hollow fiber membrane. A filter 44; Each receiving portion 40a in which the filters 41, 42, 43, 44 are accommodated is formed.

In addition, the water outlet 50 is cooled to cool the drinking water W1 and the hot water outlet 51 provided with the heater 51a for heating the drinking water W1, as shown in FIGS. 2 to 5. It consists of the cold water export part 52 provided with the part 52a.

Here, the cold water dispenser 52 has a cold water dispenser 52b for withdrawing the drinking water W1 cooled by passing through the cooling unit 52a, and drinking water W1 having a normal temperature that does not pass through the cooling unit 52a. It consists of a normal temperature water dispenser (52c) withdrawing water.

Looking at the operation of the water purification system equipped with a plasma sterilizing unit according to the present invention made as described above are as follows.

The water purification system equipped with the plasma sterilization unit according to the present invention is a water purification system that cleans and discharges the raw water W to drinking water W1 as shown in FIGS. 2 and 5.

That is, the first filtration proceeds as the raw water (W) initially supplied passes through the sediment filter unit 10, passes through the first filter unit 20, and is first filtered, and the plasma sterilization unit ( The first filtered raw water (W) is filled in the interior of the 30 to be sterilized by the plasma generating module 31, the sterilized drinking water (W1) passes through the second filter unit 40 and filtered secondly. After it is supplied to the outside through the water extraction unit 50.

Here, plasma sterilization generates low-temperature plasma at low pressure from the supplied raw water (W) to change living water such as tap water or groundwater into natural strong sterilizing water and disinfect water, as well as bacteria and toxic chemicals (residual pesticides, etc.) in the water. It is a method of sterilizing more than 99.9% of invisible bacteria or decomposing harmful substances.

In this case, the flow rate sensor 32 is connected between the plasma sterilization unit 30 and the second filter unit 40 and detects the flow rate of the drinking water W1 discharged from the plasma sterilization unit 30. In addition, the amount of drinking water W1 withdrawn from the plasma sterilizer 30 may be sensed and the raw water W may be replenished by the amount withdrawn, and thus the raw water W filled inside the plasma sterilizer 30. The flow rate of can be kept constant at all times.

Thus, the raw water (W) is always filled in the plasma sterilization unit 30 to sterilize the raw water (W) every time by the same time with the plasma generating module (31).

In this case, the plasma generation module 31 is divided into a positive electrode and a negative electrode, and when a direct current voltage is applied, a negative electrode reaction and a positive electrode reaction occur, respectively, and the negative electrode receives electrons to generate hydrogen molecules and hydroxyl groups (OH-), and hydrogen ions Is generated.

At this time, since the generated hydroxyl group (OH-) is very unstable in molecular nature, it absorbs hydrogen cations (H +) in the cell membranes of bacteria and tries to reduce it to water.Bacteria from which hydrogen is removed from cell membranes are harmless as cell membranes are destroyed. Reduced.

In addition, since the hydroxyl ions (OH-) are reduced to water, the hydroxyl ions (OH-) are neutral to maintain a suitable state for drinking water (W1).

 At this time, the flow sensor 32 includes a control unit 60 for operating the plasma generating module 31, it is possible to easily operate the plasma sterilization unit (30).

The control valve is provided with a supply valve (not shown) for opening and closing the raw water (W) supplied to the plasma sterilization unit 30 and a discharge valve (not shown) for opening and closing the sterilized drinking water (W1) to the outside. By being connected to the unit 60, the raw water (W) of the plasma sterilization unit 30 can be easily supplied or discharged.

Here, the plasma sterilization unit 30 is provided with a gas discharge device (36a) having a solenoid valve (V) to discharge the gas (G) generated from the plasma generating module 31, the plasma sterilization unit ( By preventing the presence of harmful gases in the internal atmosphere of 30) it is possible to prevent the deterioration of sterilized drinking water (W1) in advance.

The operation of the control method of the water purification system equipped with the plasma sterilizing unit according to the present invention having the above configuration is as follows.

In the control method of the water purification system equipped with the plasma sterilization unit according to the present invention, as shown in FIG. 6, the flow sensor 32 and the cup detecting sensor 37 are first detected to operate the control unit 60. The system operation step (S10) to proceed.

Here, the operation of the flow rate sensor 32 and the cup sensor 37 to detect the movement of the fluid in the interior of the water purification system, or to detect the inflow of the cup member (C) of the raw water (W) Simultaneously with the introduction, the plasma sterilization unit 30 is operated.

That is, after the system operation step S10, an operation time detection step S20 for detecting the operation holding time T of the flow sensor 32 and the cup detection sensor 37 is performed, and the predetermined first designated time is performed. A first comparison step S30 of comparing T1 and the holding time T is performed to determine and apply the type of electrode applied to the electrode plate 31a of the plasma sterilization unit 30.

This is a forward electrode applying step of operating the plasma sterilization unit 30 by applying an electrode in one direction, that is, a positive electrode to a negative electrode, to the electrode plate 31a during the first designated time T1 (S40). Is going on.

Subsequently, when the holding time T is higher than the first designated time T1 in the first comparing step S30, a second comparison comparing the predetermined second designated time T2 with the holding time T is performed. Step S50 is performed to determine the type of electrode to be applied to the electrode plate 31a of the plasma sterilization unit 30 to be applied.

This is the reverse electrode applying step (S60) is applied to the electrode plate 31a in the other direction, that is, a negative electrode plus a positive electrode during the second designated time (T2) to operate the plasma sterilization unit 30 (S60). Is going on.

On the other hand, in the second comparison step (S50), if the holding time (T) is higher than the second designated time (T2), the holding time (T) is reset to zero, and the system operation step (S10) before The turning system return step (S70) proceeds.

This is to reset the electrode direction applied to the electrode plate 31a for the first time after the first designated time T1 and the second designated time T2 have passed.

Thus, by setting a control method in which the forward electrode and the reverse electrode are sequentially applied to the plasma generation module for a predetermined time, the electrode is applied in a single direction, and it is not known that any one electrode plate is unevenly worn. This can significantly improve the service life of the system.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

W: raw water 10: sediment filter part
20: first filter unit 30: plasma sterilization unit
31: plasma generating module 31a: electrode plate
32: flow rate sensor 33: plasma body
34: inlet 35: outlet
36 gas discharge port 36a gas discharge device
37: cup detection sensor 40: the second filter part
50: water outlet 51: hot water outlet
51a: heater portion 52: cold water export portion
52a: cooling unit 52b: cold water dispenser
52c: room temperature water dispenser 60: control unit
W1: drinking water C: cup member
S10: system operation step S20: operation time detection step
S30: first comparison step S40: forward electrode applying step
S50: second comparison step S60: reverse electrode applying step
S70: System Return Step

Claims (6)

In the water purification system that purified water (W) by drinking water (W1) so that the user can drink,
A sediment filter unit 10 into which raw water W is first introduced; A first filter part 20 connected to the sediment filter part 10; A box-shaped plasma sterilization unit 30 connected to the primary filter unit 20 and having a plasma generation module 31 therein; A second filter part 40 connected to the plasma sterilizing part 30; It is composed of a water extraction unit 50 connected to the second filter unit 40;
Between the plasma sterilization unit 30 and the second filter unit 40 is provided with a flow rate sensor 32 for detecting the flow rate of the drinking water (W1) discharged from the plasma sterilization unit (30);
The water extraction unit 50 is provided with a cup sensor 37 for detecting whether the cup member (C) is drawn;
The control unit 60 is connected to the flow rate sensor 32 and the cup detecting sensor 37 to operate the water purification system so that the flow rate of the raw water W filled in the plasma sterilization unit 30 is always maintained. Water purification system equipped with a plasma sterilization unit characterized in that it comprises a. The method according to claim 1,
The plasma generation module (31) is a water purification system with a plasma sterilization unit, characterized in that consisting of a plurality of electrode plates (31a) to which any one of the positive electrode or the negative electrode is applied. The method according to claim 1,
The plasma sterilization unit 30 accommodates the plasma generating module 31 therein and has a box-shaped plasma main body 33 having a space for moving the raw water W, and a surface of the plasma main body 33. Plasma sterilization unit, characterized in that consisting of the inlet part 34 and the outlet part 35 connected through, and the gas discharge port 36 formed in the upper portion to discharge the gas (G) generated through the plasma generation module 31 Equipped water purification system. The method of claim 3, wherein
The gas discharge port (36) is a water purification system equipped with a plasma sterilization unit, characterized in that the gas discharge device (36a) provided with a solenoid valve (V) to discharge the gas (G) generated therein. The method according to claim 1,
The water extraction unit 50 is a cold water extraction unit 52 is provided with a hot water extraction unit 51 having a heater unit 51a for heating the drinking water (W1), and a cooling unit 52a for cooling the drinking water (W1). );
The cold water dispenser 52 includes a cold water dispenser 52b for exiting the drinking water W1 cooled through the cooling unit 52a, and drinking water W1 at room temperature not passing through the cooling unit 52a. Water purification system equipped with a plasma sterilization unit, characterized in that consisting of the hot water dispenser (52c) to discharge water. In the control method of the water purification system consisting of any one of Claims 1-5,
A system operation step (S10) of operating the control unit 60 by detecting whether the flow sensor 32 and the cup detection sensor 37 are operated;
An operation time detection step (S20) of detecting an operation holding time T of the flow rate sensor 32 and the cup detection sensor 37;
A first comparison step S30 of comparing a predetermined first predetermined time T1 with the holding time T;
In the first comparison step (S30), when the holding time (T) is smaller than the first predetermined time (T1), the forward electrode for operating the plasma sterilization unit 30 by applying a forward electrode to the electrode plate (31a) Authorization step (S40);
A second comparison step of comparing the predetermined second predetermined time T2 with the holding time T when the holding time T is higher than the first designated time T1 in the first comparing step S30; S50);
In the second comparison step (S50), if the holding time (T) is less than the second specified time (T2) is applied to the reverse electrode to the electrode plate (31a) reverse electrode for operating the plasma sterilization unit 30 Authorization step (S60);
When the holding time T is higher than the second designated time T2 in the second comparing step S50, the holding time T is reset to 0, and the system returns to before the system operating step S10. Return step (S70); the control method of the water purification system equipped with a plasma sterilization unit.

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