KR20120106223A

KR20120106223A - Water purifier connecting cleaning device and method for cleaning the water purifier using the same

Info

Publication number: KR20120106223A
Application number: KR1020110024194A
Authority: KR
Inventors: 서경아
Original assignee: 주식회사 비.엘.아이
Priority date: 2011-03-18
Filing date: 2011-03-18
Publication date: 2012-09-26

Abstract

PURPOSE: A water purifier equipped with a cleaning device and a method for cleaning the water purifier using the same are provided to reduce separate energy consumption by implementing a cleaning process based on power supplied to a water purifier. CONSTITUTION: A method for cleaning a water purifier includes the following: a first cleaning agent is introduced into a cleaning filter part equipped in a water purifier(S701); the first cleaning agent is dissolved to be introduced into a purified water tank part(S702); a circulating pump part circulates the dissolved cleaning agent in the purified water tank part and a warm water tank part; the circulated cleaning agent is discharged through a draining part in connection with the circulating pump part; purified water through a filtering part, which purified external feed water, is circulated in the purified water tank part and the warm water tank part; and remaining water is discharged from the purified water tank part and the warm water tank part(S710). [Reference numerals] (AA) Start; (BB) End; (S701) First cleaning agent inserting step; (S702) First cleaning agent dissolving step; (S703) First cleaning agent circulating step; (S704) First cleaning agent draining step; (S705) Second cleaning agent introducing step; (S706) Second cleaning agent dissolving step; (S707) Second cleaning agent circulating step; (S708) Second cleaning agent draining step; (S709) Re-cleaning step; (S710) Remaining water draining step

Description

Water purifier combined with cleaning means and water purifier cleaning method using the same {WATER PURIFIER CONNECTING CLEANING DEVICE AND METHOD FOR CLEANING THE WATER PURIFIER USING THE SAME}

The present invention relates to a water purifier combined with cleaning means and a water purifier cleaning method using the same.

In general, a water purifier is a device for filtering purified raw water from outside for drinking purposes.

The conventional water purifier has a problem that, as a predetermined time elapses, a adherent microorganism called a biofilm is formed in the water purification tank or inside the water purifier tank for storing purified water. Biofilm is a fixed microorganism surrounded by a gelatin matrix is fixed on the surface by a high molecular sugar such as polysaccharide, has a three-step life cycle of adhesion, growth and desorption. These biofilms grow in storage tanks and water pipes that are in contact with water, hinder heat transfer, and there is a concern that the purified water stored in the purified water tank may be contaminated by generation of scale, precipitation of insoluble salts or activation of anaerobic bacterial growth. . In addition, contamination of the purified water may cause bad water taste and smell.

In order to solve the above problems, the Republic of Korea Patent Publication No. 10-2010-0089483 has been proposed a "cleaning method of the water purifier" (hereinafter referred to as "prior art 1").

However, according to the prior art 1, since the washing operation is performed by the raw water pressure of weak water pressure, some of the internal space of the water purifier may not be washed. In addition, since the washing water in which the detergent is dissolved is discharged in a batch without circulating the inside of the purified water tank and the pipe, there is a problem that the washing efficiency is low.

Furthermore, in the related art 1, the method of discharging the cleaning liquid through the cock is applied. However, the simple supporting and stagnant method of temporarily storing the cleaning liquid in the purified water tank may take a long time to increase the cleaning efficiency. Occurred.

On the other hand, in the Republic of Korea Patent Publication No. 10-2010-0128661 in order to improve the washing efficiency of the water purifier has been proposed "a washing apparatus for water treatment equipment and its cleaning method" (hereinafter referred to as 'prior art 2').

However, the prior art 2 has a inconvenience in use that must be connected to the take-out cock of the water purifier each time the use of the circulation module equipped with a circulation pump, was consumed a separate power to operate the cleaning circulation module.

In addition, the prior art 2 has a cost problem that must be purchased separately for cleaning the water purifier. Furthermore, in the prior art 2, as the washing pipe is broken down, it takes a long time until the washing operation is completed.

The present invention has been made in view of the above-described problems, and an object thereof is to provide a technology for efficiently cleaning a water purification tank, a pipeline, and a cock portion inside a water purifier.

In order to achieve this object, the water purifier combined with the cleaning means according to an embodiment of the present invention includes a water purification tank unit for storing purified water through a filter; A control valve unit controlling a circulation of the purified water flowing in the conduit; A circulation pump for pressurizing the water in the pipe to circulate; A control unit for controlling the circulation of purified water flowing in the conduit by controlling the operation of the control valve unit and the circulation pump unit; A first coke unit for extracting the purified water stored in the purified water tank to the outside; A second coke unit for extracting purified water stored and heated in the hot water tank unit to the outside; A purified water supply unit configured to move the purified water stored in the purified water tank unit to the hot water tank unit; A washing filter unit in which the washing agent is dissolved by the purified water flowing in; A first drainage part connected to one side of the circulation pump part to discharge the washing water to the outside of the water purifier; A second drainage part connected to the other side of the circulation pump part to discharge the washing water to the outside of the water purifier; The purified water tank part is washed by the cleaning agent, or is connected to one side of the first drain part so that the inside of the purified water tank part is rewashed by purified water flowing through the filter, and the cleaning filter part, the first cock part, and the A first circulation part which is connected to the other side of the circulation pump part via a purified water tank part and the control valve part; The hot water tank unit is washed by the cleaner, or connected to one side of the second drain portion so that the inside of the hot water tank portion is rewashed by a purified water flowing through the filter and passing through the second coke portion and the hot water tank portion. A second circulation part; Characterized in that it comprises a.

The first coke portion is partitioned by a separator that partitions the inside of the purified water tank portion, characterized in that to extract the purified water from the cold water tank portion located below the purified water tank portion.

The control valve portion is characterized in that the electronic solenoid valve.

The water purifier combined with the cleaning means displays the time and progress of the cleaning liquid generated by the cleaning filter unit in the pipe passage and drained to the outside through the first and second drains. A display unit for outputting; And further comprising:

The water purifier combined with the cleaning means generates a electrical signal for performing the washing, re-washing and draining operation, the button operation unit for transmitting to the control unit; And further comprising:

The cleaning filter unit is a cylindrical body and the cap coupled to the one side of the body in a screw manner; And a control unit.

A first port through which water is introduced is formed at one side of the main body, and a second port through which water introduced from the first port is discharged is formed at one side of the cap.

The cleaning filter unit is characterized in that coupled to one side of the first cock.

The cleaning agent inserted into the cleaning filter unit includes a primary cleaning agent composed of chlorine dioxide in a tablet form; And a secondary cleaner for neutralizing the primary cleaner. Characterized in that it comprises a.

The secondary cleaner is characterized in that the compound selected from the group consisting of sulfates, organic acid salts, carbonates and copolymers thereof.

In order to achieve the above object, a water purifier cleaning method according to another embodiment of the present invention includes a primary detergent input step of injecting a primary detergent into a cleaning filter provided in the water purifier; A primary detergent dissolving step of dissolving the primary detergent introduced in the primary detergent input step and flowing into the purified water tank part; A primary washing liquid circulation step of circulating the washing liquid generated in the primary detergent dissolving step by circulating a pump to pressurize the inside of the water purifier to circulate water in the purified water tank part and the hot water tank part; A first washing liquid draining step of discharging the washing liquid circulated in the first washing liquid circulation step to the outside through a drain connected to the circulation pump part; Re-cleaning step in which the purified water flowing from the filter unit for purifying the external raw water circulates inside the purified water tank unit and the hot water tank unit by the circulation pump unit; And a residual water draining step of opening the drain valve provided in the drain to discharge the remaining water remaining in the purified water tank and the hot water tank. Characterized in that it comprises a.

The water purifier cleaning method includes a secondary detergent input step of injecting a secondary detergent into the cleaning filter part after the primary cleaning liquid drainage step is completed; A secondary detergent dissolving step of dissolving the secondary detergent introduced in the secondary detergent input step into the purified water tank part; A second cleaning liquid circulation step of circulating the cleaning liquid generated in the second detergent dissolving step by circulating the water by circulating the water by circulating the pipe of the water purifier in the water purification tank and the hot water tank; And a second washing liquid draining step in which the washing liquid circulated in the second washing liquid circulation step is discharged to the outside through the drain connected to the circulation pump. And further comprising:

The control valve unit for controlling the circulation of the purified water flowing in at least one pipeline in the primary detergent dissolving step is characterized in that for blocking the pipeline connected between the control valve and the purified water tank.

The control valve unit for controlling the circulation of purified water flowing in at least one pipe in the secondary detergent dissolving step is characterized in that for blocking the pipe connected between the control valve and the purified water tank.

The control valve unit is characterized in that the electronic solenoid valve for controlling the opening and closing of the pipe in accordance with the electrical signal transmitted from the control unit.

The primary detergent is characterized in that the chlorine dioxide in the form of tablets.

The secondary detergent is characterized in that the compound in the form of a tablet selected from the group consisting of sulfates, organic acid salts, carbonates and copolymers thereof.

As described above, according to the present invention, since the washing water or purified water in the water pipe and the purified water tank including the cock is circulated for a predetermined time by the circulation pump for pressurizing the water in the pipe, the washing efficiency is improved and accordingly The cleaning time is shortened.

In addition, since the circulation pump unit is provided inside the water purifier, it is convenient to use because it does not need to operate a separate equipment for cleaning, and economical that the separate power is not consumed because the washing process is performed through the power supplied to the water purifier. It works.

In addition, as the washing pipe is simplified by the first circulation part and the second circulation part, it is possible to save time required for the cleaning process.

1 illustrates a water purifier cleaning method according to a preferred embodiment of the present invention.
Figure 2 illustrates a detergent dissolving step according to a preferred embodiment of the present invention.
Figure 3 shows the washing liquid circulation step according to a preferred embodiment of the present invention.
4 shows a recleaning step according to a preferred embodiment of the present invention.
Figure 5 illustrates a drainage step according to a preferred embodiment of the present invention.
6 shows a cleaning filter unit according to a preferred embodiment of the present invention.
7 is a flowchart of a water purifier cleaning method according to a preferred embodiment of the present invention.

The preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, in which the technical parts already known will be omitted or compressed for simplicity of explanation.

<Description of Configuration>

The water purifier 10 combined with the cleaning means according to the present invention includes a tank part 110, a control valve part 120, a circulation pump part 130, a cock part 140, a purified water supply part 150, and a cleaning filter part ( 160, a drain 170, a circulation 180, a hot water discharge 190, and the like, and will be described with reference to the drawings illustrated in FIGS. 1 to 6.

The tank unit 110 is composed of a purified water tank 111 and a hot water tank 112, and is a storage space for storing purified water in the water purifier. The purified water tank 111 stores purified water purified through a filter, and the inside of the purified water tank 111 is partitioned by a separator plate 111b.

Cold water tank 111a for cooling and storing the purified water is located at the lower portion of the purified water tank 111 partitioned by the separating plate 111b. In addition, as the first cock part 141 is coupled to one side of the cold water tank 111a, the purified purified water may be taken out to the outside.

The hot water tank unit 112 is a storage unit for heating the purified water and storing the heated purified water. Some of the purified water stored in the purified water tank 111 is moved to the hot water tank 112 through the purified water supply unit 150 coupled to one side of the separating plate 111b. At this time, the purified water heated and stored in the hot water tank unit 112 may be taken out through the second coke unit 142 coupled to one side of the hot water tank unit 112.

The control valve unit 120 is a device for controlling the circulation of purified water flowing in the pipeline by opening or closing the pipeline. In an embodiment of the present invention, an electronic solenoid valve for opening and closing a specific pipe line as a control valve unit 120 is used as a control valve unit 120 when power is applied by a control unit. Can also be used.

Meanwhile, as a filter provided in the water purifier according to the present invention, a sediment filter, a precarbon filter, a post carbon filter and a hollow fiber membrane filter may be used, and a reverse osmosis membrane filter may be used as necessary.

The circulation pump 130 is a device that pressurizes the purified water flowing in the pipeline to circulate the purified water for cleaning liquid or re-cleaning and the storage space inside the water purifier such as the purified water tank 111 and the hot water tank 112. Supply constant pressure to circulate the pipeline.

The control unit (not shown) is a control device for controlling the circulation of purified water flowing in the pipeline by controlling the operation of the control valve unit 120 and the circulation pump unit 130 through an electrical signal. The controller measures the flow rate of the cleaning liquid or purified water through a flow sensor (not shown) installed in the pipeline of the water purifier, and operates or stops the control valve unit 120 and the circulation pump unit 130 according to a preset reference value. Do.

If the flow rate of the cleaning liquid or purified water does not match the reference value, the control unit may control the display unit to output an error message or to output an audio warning message through other output means.

The purified water supply unit 150 is a conduit for moving the purified water stored in the purified water tank 111 to the hot water tank 112. In one embodiment of the present invention, the purified water supply unit 150 is connected to the separator plate 111b partitioning the inside of the purified water tank 111, the purified water of the purified water tank 111 is moved to the hot water tank 112. do.

The cleaning filter unit 160 has a cleaning agent therein, and is a device for dissolving the cleaning agent by introducing purified water. The cleaning filter unit 160 includes a cylindrical main body 161 and a cap 162 coupled to an upper portion of the main body 161. At this time, since the cap 162 is coupled in a screw manner at the top of the main body 161, the cap 162 may be easily separated and recombined from the main body 161.

In addition, a cleaning sensor (not shown) is attached to the inside of the cleaning filter 160, it is preferable to continuously monitor the remaining amount of the cleaning agent.

As shown in FIG. 6, purified water flows into the cleaning filter unit 160 through the first port 163 formed at one side of the main body 161. The purified water is converted into a cleaning liquid by dissolving the cleaning agent in a tablet form, and the cleaning liquid is discharged to the outside of the cleaning filter unit 160 through the second port 164 formed on one side of the cap 162. In one embodiment of the present invention, the cleaning filter unit 160 is coupled to one side of the first coke unit 141 to introduce the cleaning liquid toward the purified water tank unit 111.

Meanwhile, the cleaning agent inserted into the cleaning filter unit 160 does not generate carcinogens such as trihalomethane by reacting with organic substances, and is composed of a primary cleaning agent composed of chlorine dioxide having superior sterilizing effect than a conventional chlorine-based cleaner. It consists of a secondary cleaner consisting of a basic substance.

Chlorine dioxide reacts with a reducing agent at room temperature and is unstable and easily decomposed by light. In the present invention, chlorine dioxide in a tablet form that reacts with water to stably generate an aqueous solution of chlorine dioxide through contact with water is used. It was.

Compared to the conventional chlorine-based cleaners, which do not penetrate into the biofilm that requires actual sterilization due to the non-selective oxidation occurring on the surface of the biofilm, the tablet-type chlorine dioxide cleaner according to the present invention has sulfides present in the biofilm. Alternatively, it selectively reacts with aromatic hydroxides such as phenol, which quickly penetrates into the biofilm and has a sterilizing effect.

In general, the chlorine disinfectant is oxidized on the surface of the biofilm, so it does not penetrate into the biofilm where actual sterilization is required. Therefore, it is limited to surface sterilization, and it reacts with organic substances to disinfect THM (trichloromethane), a carcinogen. Occurs as a byproduct and has a negative effect on the human body. For example, disinfectants such as sodium hypochlorite, hydrogen peroxide, and ozone are non-selective oxidizing reactions that are consumed by reacting with various organic / inorganic substances already present on the surface of biofilm before they penetrate into the biofilm and sterilize. Throw it away.

However, chlorine dioxide reacts selectively with aromatic hydroxides such as sulfides or phenols and is not affected by other organic contaminants on the biofilm surface. That is, the cleaning agent composed of chlorine dioxide has a strong biomass penetration ability, so the effect of removing the bacterial film is very strong, and can quickly penetrate into the biofilm.

In addition, chlorine dioxide has the advantage that it can maintain the sterilizing power in a stable and wide pH range in solution compared to the conventional chlorine disinfectant.

On the other hand, after the first cleaning by the cleaning agent consisting of chlorine dioxide is completed, in order to completely remove the biofilm or the first cleaning liquid remaining on the surface of the water purifier, a basic secondary cleaning agent consisting of sulfate, carbonate, organic acid salt, etc. may be used. Can be.

This secondary cleaner substantially dissolves the biofilm remaining on the surface of the water purifier to remove scale of the residual coating. In addition, the secondary cleaner has an effect of removing the metal oxide scale by easily separating or detaching metal ions activated by chlorine dioxide during the primary cleaning.

On the other hand, since the primary washing proceeds to the chlorine dioxide component in an acidic (pH 1.5 to 4.5) state, it is necessary to neutralize it after the primary washing. Since the above-described secondary cleaning solution has a neutralizing performance with a basic (pH 9.0 to 14.0) chlorine-based material, there is an advantage that the neutralization can proceed simultaneously with the primary cleaning without a separate neutralization process.

The first drain 171 is connected to one side of the circulation pump 130 to discharge the washing water to the outside of the water purifier. In addition, as one side of the first drain portion 171 is connected to the cleaning filter unit 160, the purified water passing through the circulation pump unit 130 passes through the first drain unit 171 to the cleaning filter unit 160. Can be introduced into. One end of the first drain 171 is provided with a drain valve, the opening and closing operation of the drain valve is made by an electrical signal transmitted from the controller.

The second drain 172 is connected to the other side of the circulation pump 130 to discharge the washing water to the outside of the water purifier. Since one side of the second drain 172 is connected to the hot water discharge unit 190, the hot water stored in the hot water tank unit 112 moves to the second drain 172 through the hot water discharge unit 190 to the outside of the water purifier. Can be discharged.

As the other side of the second drain portion 172 is connected to the second cock portion 142, the purified water passing through the circulation pump part 130 passes through the second drain portion 172 to the second cock portion 142. Can be introduced into. One end of the second drain 172 is provided with a drain valve, and the opening and closing operation of the drain valve is performed under the control of the controller.

The first circulation part 181 is connected to one side of the first drainage part 171 and passes through the cleaning filter part 160, the first coke part 141, the water purification tank part 111, and the control valve part 120. And, the pipe is connected to the other side of the circulation pump 130. The cleaning liquid generated by the cleaning filter unit 160 circulates through the internal water pipe of the water purifier through the water purification tank 111 by the first circulation unit 181.

The second circulation part 182 is connected to one side of the second drainage part 172 and is a pipe passing through the second cock part 142 and the hot water tank part 112. As shown in FIG. 3, the cleaning liquid generated by the cleaning filter 160 is pressurized by the circulation pump 130 to circulate the internal water purifier. At this time, the cleaning liquid may be introduced into the hot water tank unit 112 via the second drain 172.

The display unit (not shown) displays the time required and the progress of the cleaning liquid generated by the cleaning filter unit 160 to circulate inside the conduit and drain to the outside through the first and second drains 172. It is a device to output on. The user can check the washing, re-washing and draining operations by the circulation of the cleaning liquid which is performed inside the water purifier through the display window provided outside the water purifier.

The button manipulation unit (not shown) is a signal device that generates and transmits an electrical signal for performing washing, re-washing and draining operations by circulating the washing liquid. The button manipulation unit preferably uses a capacitive or pressure sensitive touch pad that generates an electrical signal by a user's touch.

<Description of the method>

A method of cleaning the tank unit 110 and the respective pipes inside the water purifier by the water purifier 10 having the cleaning means according to the present invention will be described with reference to the flowchart shown in FIG. 7, and shown in FIGS. 1 and 6. Although described with reference to the drawings, it will be described with the order of convenience.

1. Primary detergent input step <S701>

In this step, the user adds a primary cleaner to the cleaning filter unit 160 provided in the water purifier. That is, a process of injecting chlorine dioxide in the form of tablets into the cleaning filter unit 160 is performed, and the amount of purified tablets can be adjusted according to circumstances.

2. Primary detergent dissolution step <S702>

In this step, when the user generates an electrical signal through the button operation unit, the control unit receives the signal to control the control valve unit 120 and the circulation pump unit 130. That is, as shown in Figure 2, when the filtered purified water is introduced through the control valve unit 120, the control unit controls the control valve unit 120 to block the pipeline to the purified water tank 111, the circulation pump The unit 130 is operated. The purified water introduced through the control valve 120 is pressurized by the circulation pump 130, and the pressurized purified water enters the cleaning filter 160 through the second drain 172.

The purified chlorine dioxide introduced into the cleaning filter unit 160 in step S701 is dissolved by purified water entering the cleaning filter unit 160, and the generated primary cleaning liquid is purified water tank via the first coke unit 141. It flows into the unit 111.

At this time, the controller checks the residual amount of the primary detergent through the detergent sensor and determines whether the detergent dissolution time is sufficient. Therefore, if the dissolution time is sufficient, the control unit moves to the first washing liquid circulation step, and if it is not sufficient, the controller controls the dissolution process to be repeated for a predetermined time. Meanwhile, the time required for dissolving the primary cleaner may be set in advance in the controller, and when the set time elapses, the dissolution time may be determined in a manner to proceed to the next step.

3. Primary cleaning solution circulation step <S703>

The control unit closes the pipeline so that the control valve unit 120 does not flow the filtered purified water, and controls the pipeline connected to the purified water tank 111 to be opened. The primary cleaning liquid generated by the cleaning filter 160 is introduced into the cold water tank 111a through the first cock 141. Thereafter, the introduced primary cleaning liquid moves to the hot water tank through the hot water discharge unit 190 or moves to the control valve unit 120 side pipe connected to the purified water tank 111.

On the other hand, the controller controls the circulation pump unit 130 to circulate the primary cleaning liquid in each conduit. That is, as shown in Figure 3, the primary cleaning liquid generated in the cleaning filter unit 160 is circulated by the circulation pump unit 130 and the tank unit 110 and each pipe sterilizing the biofilm present therein Process. At this time, the time that the primary cleaning liquid is circulated for a set time set in the control unit, the set time may vary depending on the capacity of the tank unit 110 and the like.

4. Primary washing liquid drainage step <S704>

In this step, the controller opens each of the drain valves installed at one end of the first drain 171 and the second drain 172. The primary cleaning liquid circulated by the circulation pump 130 in step S703 is discharged to the outside of the water purifier through the first drain 171 and the second drain 172. At this time, since the check valve (not shown) is provided in the hot water discharge unit 190 positioned below the hot water tank unit 112, the first cleaning liquid remaining in the hot water tank unit 112 when the check valve is opened by the control unit. It is discharged to the outside through the second drain 172.

On the other hand, in order to shorten the washing time and improve the washing efficiency, the user may skip this step through the setting of the control unit and proceed to step S705. That is, the control unit can facilitate the use by controlling the primary cleaning liquid that has not been discharged in this step to be drained together with the secondary cleaning liquid in step S708.

5. Second detergent cleaning step <S705>

In this step, the user adds a secondary cleaner to the cleaning filter unit 160 provided in the water purifier. That is, a process of adding a basic compound in the form of a tablet to the cleaning filter unit 160 is performed, and the amount of the purified tablet can be adjusted according to circumstances.

6. Second detergent dissolution step <S706>

In step S705, the basic compound of the purified form introduced into the cleaning filter unit 160 is dissolved by purified water entering the cleaning filter unit 160, and the generated secondary cleaning liquid is purified water tank via the first coke unit 141. It flows into the unit 111.

At this time, the controller checks the residual amount of the secondary detergent through the detergent sensor and determines whether the detergent dissolution time is sufficient. Therefore, the control unit moves to the secondary washing liquid circulation step if the dissolution time is sufficient, and controls the dissolution process to be repeated for a predetermined time if the dissolution time is not sufficient. Meanwhile, the time required for dissolving the secondary cleaner may be set in advance in the controller, and when the set time passes, the dissolution time may be determined by proceeding to the next step.

7. Second cleaning liquid circulation step <S707>

The control unit closes the pipeline so that the control valve unit 120 does not flow the filtered purified water, and controls the pipeline connected to the purified water tank 111 to be opened. The secondary cleaning liquid generated by the cleaning filter 160 is introduced into the cold water tank 111a through the first cock 141. Then, the introduced secondary cleaning liquid is moved to the hot water tank through the hot water discharge unit 190, or to the control valve unit 120 side pipe connected to the purified water tank 111.

On the other hand, the controller controls the circulation pump unit 130 to circulate the secondary cleaning liquid in each conduit. That is, as shown in FIG. 3, the secondary cleaning liquid generated by the cleaning filter unit 160 circulates the tank unit 110 and each pipe by the circulation pump unit 130 to sterilize the biofilm existing therein. Process. At this time, the time that the secondary cleaning liquid is circulated for a set time set in the controller, the set time may vary depending on the capacity of the tank unit 110, and the like.

8. Second cleaning liquid drainage step <S708>

In this step, the controller opens each of the drain valves installed at one end of the first drain 171 and the second drain 172. The secondary cleaning liquid circulated by the circulation pump 130 in step S707 is discharged to the outside of the water purifier through the first drain 171 and the second drain 172. At this time, since the check valve (not shown) is provided in the hot water discharge unit 190 positioned below the hot water tank unit 112, the secondary cleaning liquid remaining in the hot water tank unit 112 when the check valve is opened by the control unit. It is discharged to the outside through the second drain 172.

9. Recleaning step <S709>

In this step, the control unit controls the control valve unit 120 and the circulation pump unit 130 to re-wash the cleaning liquid remaining in the tank unit 110 and each conduit. At this time, the controller is to check the state of full water level through the water level sensor provided in the tank 110, it is preferable to proceed with the re-washing step.

As shown in FIG. 4, the filtered purified water flows in through the control valve unit 120 to the circulation pump unit 130, and the purified water introduced into the circulation pump unit 130 is transferred to the circulation pump unit 130. Pressurized by the air is sent to the first drain 171 and the second drain 172. The purified water sent to the first drain 171 flows into the cold water tank 111a via the cleaning filter 160 and the first cock 141, and the purified water flows into the purified water tank 111. It is moved to the control valve unit 120 through the recirculation or is introduced into the hot water tank unit 112 through the purified water supply unit 150. In addition, the purified water sent to the second drain 172 is introduced into the hot water tank 112 through the second cock 142.

10. Residual water drainage step <S710>

In this step, the controller opens each of the drain valves installed at one end of the first drain 171 and the second drain 172. The residual water remaining in the conduit after the re-cleaning is completed in step S709 is pressurized by the circulation pump 130, and is discharged to the outside of the water purifier through the first drain 171 and the second drain 172. At this time, the control unit opens the check valve located in the lower portion of the hot water tank 112 to control the purified water stored in the hot water tank 112 to be discharged to the outside through the second drain 172.

The control unit controls the display unit to output a message about the progress of each step on the screen, and when the progress of each step is completed, the display unit outputs a message indicating that the step is completed.

Purifier cleaning method according to the present invention has the effect that the washing water or purified water in the conduit and the purified water tank 111 is circulated for a predetermined time by the circulation pump 130 for pressurizing the water in the conduit, thereby improving the washing efficiency. . In addition, since the circulation pump 130 is provided inside the water purifier, it is not necessary to operate a separate equipment for washing, and thus is convenient for use, and since the washing process is performed through the power supplied to the water purifier, separate power is consumed. There is no economic effect. On the other hand, as the washing pipe is simplified by the first circulation portion 181 and the second circulation portion 182, it is possible to save time required for the washing process.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. And the scope of the present invention should be understood as the following claims and their equivalents.

10: water purifier with cleaning means
110: tank part
111: water purification tank
111a: cold water tank
111b: Separator
112: hot water tank unit
120: control valve unit
130: circulation pump
140: cock part
141: first cock portion
142: second cock portion
150: purified water supply unit
160: cleaning filter unit
161: main body
162: cap
163: first port
164: second port
170: drain
171: first drainage
172: second drainage
180: circulation
181: first circulation
182: second circulation
190: hot water discharge unit

Claims

A purified water tank unit for storing purified water purified through a filter;
A control valve unit controlling a circulation of the purified water flowing in the conduit;
A circulation pump for pressurizing the water in the pipe to circulate;
A control unit for controlling the circulation of purified water flowing in the conduit by controlling the operation of the control valve unit and the circulation pump unit;
A first coke unit for extracting the purified water stored in the purified water tank unit to the outside;
A second coke unit for extracting purified water stored and heated in the hot water tank unit to the outside;
A purified water supply unit configured to move the purified water stored in the purified water tank unit to the hot water tank unit;
A washing filter unit in which the washing agent is dissolved by the purified water flowing in;
A first drainage part connected to one side of the circulation pump part to discharge the washing water to the outside of the water purifier;
A second drain part connected to the other side of the circulation pump part to discharge the washing water to the outside of the water purifier;
The purified water tank part is washed by the cleaning agent, or is connected to one side of the first drain part so that the inside of the purified water tank part is rewashed by purified water flowing through the filter, and the cleaning filter part, the first cock part, and the A first circulation part which is connected to the other side of the circulation pump part via a purified water tank part and the control valve part;
The hot water tank unit is washed by the cleaner, or connected to one side of the second drain portion so that the inside of the hot water tank portion is rewashed by a purified water flowing through the filter and passing through the second coke portion and the hot water tank portion. A second circulation part; &Lt; RTI ID = 0.0 >
Water purifier combined with cleaning means.

The method of claim 1,
The first coke portion is partitioned by a separating plate partitioning the inside of the purified water tank portion, characterized in that to extract the purified water from the cold water tank portion located below the purified water tank portion
Water purifier combined with cleaning means.

The method of claim 1,
The control valve unit is characterized in that the electronic solenoid valve
Water purifier combined with cleaning means.

The method of claim 1,
A display unit configured to output, on a screen, a time required and a progress state of an operation in which the cleaning liquid generated by the cleaning filter circulates in the pipe and is drained to the outside through the first and second drainage units; &Lt; RTI ID = 0.0 >
Water purifier combined with cleaning means.

The method of claim 1,
A button manipulation unit generating an electrical signal for executing washing, rewashing and draining operations and transmitting the generated electrical signal to the controller; &Lt; RTI ID = 0.0 >
Water purifier combined with cleaning means.

The method of claim 1,
The cleaning filter unit
A cylindrical body and a cap coupled to one side of the body in a screw manner; Characterized in that it comprises
Water purifier combined with cleaning means.

The method according to claim 6,
A first port through which water is introduced is formed at one side of the main body, and a second port through which water introduced from the first port is discharged is formed at one side of the cap.
Water purifier combined with cleaning means.

The method of claim 1,
The cleaning filter unit is characterized in that coupled to one side of the first cock portion
Water purifier combined with cleaning means.

The method of claim 1,
The cleaning agent inserted into the cleaning filter unit includes a primary cleaning agent composed of chlorine dioxide in a tablet form; And
A secondary cleaner for neutralizing the primary cleaner; &Lt; RTI ID = 0.0 >
Water purifier combined with cleaning means.

10. The method of claim 9,
The secondary cleaner is a compound selected from the group consisting of sulfates, organic acid salts, carbonates and copolymers thereof
Water purifier combined with cleaning means.

A primary detergent input step of injecting a primary detergent into a cleaning filter unit provided in the water purifier;
A primary detergent dissolving step of dissolving the primary detergent introduced in the primary detergent input step and flowing into the purified water tank part;
A primary washing liquid circulation step of circulating the washing liquid generated in the primary detergent dissolving step by circulating a pump to pressurize the inside of the water purifier to circulate water in the purified water tank part and the hot water tank part;
A first washing liquid draining step of discharging the washing liquid circulated in the first washing liquid circulation step to the outside through a drain connected to the circulation pump part;
Re-cleaning step in which the purified water flowing from the filter unit for purifying the external raw water circulates inside the purified water tank unit and the hot water tank unit by the circulation pump unit; And
A residual water draining step of opening the drain valve provided in the drain to discharge the residual water remaining in the purified water tank and the hot water tank; &Lt; RTI ID = 0.0 >
Purifier cleaning method.

The method of claim 11,
A secondary detergent input step of introducing a secondary detergent into the cleaning filter part after the primary detergent drainage step is completed;
A secondary detergent dissolving step of dissolving the secondary detergent introduced in the secondary detergent input step into the purified water tank part;
A second cleaning liquid circulation step of circulating the cleaning liquid generated in the second detergent dissolving step by circulating the water by circulating the water by circulating the pipe of the water purifier in the water purification tank and the hot water tank; And
A second washing liquid drainage step of discharging the washing liquid circulated in the second washing liquid circulation step to the outside through the drainage portion connected to the circulation pump; &Lt; RTI ID = 0.0 >
Purifier cleaning method.

The method of claim 11,
In the first detergent dissolving step
The control valve unit for controlling the circulation of the purified water flowing in at least one pipe line characterized in that for blocking the pipe connected between the control valve unit and the purified water tank unit
Purifier cleaning method.

The method of claim 12,
In the second detergent dissolving step
The control valve unit for controlling the circulation of the purified water flowing in at least one pipe line characterized in that for blocking the pipe connected between the control valve unit and the purified water tank unit
Purifier cleaning method.

The method according to any one of claims 13 and 14,
The control valve unit is an electronic solenoid valve for controlling the opening and closing of the pipe in accordance with the electrical signal transmitted from the control unit
Purifier cleaning method.

The method of claim 11,
The first detergent is characterized in that the chlorine dioxide in the form of tablets
Purifier cleaning method.

The method of claim 12,
The secondary cleaning agent is a compound in the form of a tablet selected from the group consisting of sulfates, organic acid salts, carbonates and copolymers thereof
Purifier cleaning method.