KR101982804B1

KR101982804B1 - Water treatment apparatus and water treatment method

Info

Publication number: KR101982804B1
Application number: KR1020120139894A
Authority: KR
Inventors: 김창진; 신유진
Original assignee: 쿠쿠홈시스 주식회사
Priority date: 2012-12-04
Filing date: 2012-12-04
Publication date: 2019-09-03
Also published as: KR20140071834A

Abstract

The present invention can uniformly sterilize the inside of a plurality of tanks, the pipes connecting between the tanks do not need to use expensive materials with high heat resistance can reduce the manufacturing cost and by using wastewater discarded in the reverse osmosis membrane filter The purpose of the present invention is to provide a water treatment apparatus and a water treatment method that can minimize the waste of water by improving the sterilization efficiency by generating the sterilization water. Water treatment device of the present invention for implementing this, the filter unit including a reverse osmosis membrane filter to filter the raw water; A first storage tank and a second storage tank respectively storing the water filtered by the filter unit at different temperatures; A circulation passage connected to circulate water discharged from the first storage tank to the first storage tank via the second storage tank; A circulation pump for circulating water discharged from the first storage tank and the second storage tank through the circulation passage; And a sterilization module for supplying sterilization water to the first storage tank and the second storage tank by using the wastewater discharged from the reverse osmosis membrane filter.

Description

WATER TREATMENT APPARATUS AND WATER TREATMENT METHOD}

The present invention relates to a water treatment apparatus and a water treatment method, and more particularly, to a water treatment apparatus and a water treatment method capable of sterilizing the water tank and the inside of the pipe using sterilization water.

As water pollution due to industrial development becomes serious, distrust in tap water increases, and recently, purified water with a water purifier is used as drinking water or commercially available bottled water as drinking water.

The water purifier is made to remove heavy metals and other harmful substances contained in the raw water through the process of sedimentation, filtration, sterilization, and adsorption of raw water such as tap water, and the like. It is also widely used for cleaning or medical use of high precision electronic components.

Conventional water purifiers include a raw water valve for controlling the supply of raw water such as tap water and natural water, a pre-treatment sediment filter for filtering the residue in the raw water that has passed through the raw water valve, and a free for removing chlorine components and odors in the raw water. A carbon filter, a post carbon filter for removing chlorine components and odors contained in the purified water passed through the pre-carbon filter, and a hollow fiber membrane filter for removing bacteria and other fine particles contained in the purified water passed through the post carbon filter. And a water tank for storing purified water passing through the hollow fiber membrane filter.

In general, a chlorine disinfectant is administered in a water treatment plant to suppress the growth of microorganisms in the water. The chlorine component is removed from the pre-carbon filter and the post carbon filter while the tap water to which the disinfectant is administered passes through the water purifier. Stored.

In this way, the purified water stored in the water tank is a state in which the chlorine component that inhibits the growth of microorganisms is removed by the filter, so when the purified water stored in the water tank is not immediately used by the consumer for a long time, bacteria grow in the water tank. Various methods have been proposed for the sterilization of such water tanks.

For example, Republic of Korea Patent No. 10-621937 discloses a technique for sterilizing the interior of the purified water tank by having an electrolytic sterilization means for generating a sterile and oxidizing mixture of purified water by electrolysis between the filter portion and the purified water tank.

However, according to the sterilization system disclosed in the prior art, since the sterilization water generated by the electrolytic sterilization means is filled in the cold water tank and the hot water tank first, the sterilization time is long, and since the last water is filled in the purified water tank, the sterilization time is shortened. However, there is a problem that time imbalance occurs during sterilization of each tank.

In addition, when hot water inside the hot water tank is directly introduced into the pipes connecting the tanks, there is a problem in the heat resistance of the pipes, so there is a problem of increasing the unit cost of the product due to the use of high heat-resistant material in the pipes. .

In addition, when the reverse osmosis membrane filter is provided in the filter part, since dissolved ionic substances contained in the raw water are removed while passing through the reverse osmosis membrane filter, a sufficient amount of sterilization material may not be generated during the electrolytic sterilization means, so that the sterilization efficiency is increased. This falls, since the ratio of the amount of water that is thrown into the wastewater and the purified water of the raw water obtained by the reverse osmosis membrane filter is 8: 2, water waste is a serious problem.

The present invention has been made to solve the above-mentioned problems, it is possible to uniformly sterilize the inside of a plurality of tanks, and it is possible to lower the manufacturing cost because there is no need to use expensive materials with high heat resistance for the pipes connecting between the tanks In addition, the purpose of the present invention is to provide a water treatment apparatus and a water treatment method which can minimize the waste of water and improve the sterilization efficiency by using the wastewater discarded in the reverse osmosis membrane filter.

Water treatment device of the present invention for achieving the above object, the filter unit including a reverse osmosis membrane filter to filter the raw water; A first storage tank and a second storage tank respectively storing the water filtered by the filter unit at different temperatures; A circulation passage connected to circulate water discharged from the first storage tank to the first storage tank via the second storage tank; A circulation pump for circulating water discharged from the first storage tank and the second storage tank through the circulation passage; And a sterilization module for supplying sterilization water to the first storage tank and the second storage tank by using the wastewater discharged from the reverse osmosis membrane filter.

The first storage tank is composed of an upper space for storing water at room temperature and a lower space for storing cold water; The circulation passage, the cold water intake line connecting the water in the lower space, the cold water intake valve for supplying cold water to the lower space, and the hot water intake for supplying hot water to the second storage tank and the user After passing through the hot water intake line connecting the valves in order to be introduced into the second storage tank, the water of the second storage tank may be discharged to flow back into the first storage tank.

The circulation passage may include a circulation line connected to the second storage tank and connected to the water discharged from the second storage tank to the first storage tank, and connected to supply the water in the upper space to the circulation line. It may include one connection line.

The circulation passage includes a water purification line connecting between the upper space and a water purification valve for supplying water of the upper space to the user; The first storage tank and the second storage tank are connected through the purified water intake line, the cold water intake line, and the hot water intake line when the purified water intake valve, the cold water intake valve, and the hot water intake valve are turned on. It may consist of forming.

The circulation passage includes a water purification line connecting between the upper space and a water purification valve for supplying water of the upper space to the user; The purified water intake valve, the cold water intake valve, and the hot water intake valve are connected to one intake port, and an intake shutoff valve is provided between the intake port and the intake valves, and in the sterilization mode, the purified water intake line, the purified water intake valve, and the cold intake The sterilized water introduced through the line and the cold water intake valve is formed between the intake shutoff valve and the intake valves through the hot water intake valve and the hot water intake line via an outlet connection passage for communicating the intake valves with each other. It may be made to flow into the second storage tank.

The circulation passage includes a circulation line connected to allow the water discharged from the second storage tank to flow into the first storage tank; Connecting the waste water outlet port and the circulation line of the drainage line, the reverse osmosis membrane filter, which is branched on the circulation line is a multiple to consist of an external, and the first effluent line shut-off valve for controlling the supply of waste water toward the first storage tank A first wastewater line installed and a second wastewater line branched from the first wastewater line and connected to the drain line; Wastewater regulators for limiting the discharge of wastewater discharged to the outside through the second wastewater line may be provided.

A cold water intake port for supplying cold water of the lower space to the user and a hot water intake port for supplying hot water of the second storage tank to the user; The cold water intake line and the cold water intake valve are sequentially connected between the lower space and the cold water intake port, and a cold water side connection valve for supplying water from the lower space supplied through the cold water intake line to the hot water intake line during sterilization circulation. Provided; A hot water intake line and a hot water intake valve are sequentially connected between the second storage tank and the hot water intake port, so that water passing through the cold water side connection valve is supplied to the second storage tank via the hot water intake line during sterilization circulation. Hot water side connection valve may be provided.

The cold water side connection valve and the hot water side connection valve are connected by a second connection line; The sterilization module and the circulation pump may be provided on the second connection line.

The water treatment method of the present invention for achieving the above object, a) mixing the water of the first storage tank and the second storage tank stored at different temperatures to drain to the outside; b) filling the first storage tank and the second storage tank with the wastewater discharged from the reverse osmosis membrane filter of the filter part; c) generating a sterilizing water in the sterilization module by circulating the waste water of the first storage tank and the second storage tank by operating a circulation pump through a circulation line connected to the first storage tank and the second storage tank; d) draining the sterilizing water in the first storage tank and the second storage tank to the outside.

According to the present invention, the waste water generated by using the wastewater generated in the reverse osmosis membrane filter can be minimized, and the waste of discarded water can be minimized. The efficiency can be improved.

In addition, since the sterilization water is generated while circulating the water in the first storage tank and the second storage tank, the interior of the first storage tank and the second storage tank can be sterilized uniformly.

In addition, by mixing and draining the water of the first storage tank and the second storage tank during drainage, the hot water is prevented from immediately flowing into the circulation line and the circulation pump, thereby reducing the product price since it is not necessary to use a material having high heat resistance. .

In addition, by installing the circulation pump in front of the drain line, the circulation pump can also be used for drainage, so it is possible to quickly drain without the need for a separate drain pump.

In addition, during the sterilization circulation, the water is circulated through the cold water intake line and the hot water intake line for the discharge of cold water and hot water, or through the water outlet connection flow path connecting the purified water intake valve and the cold water intake valve and the hot water intake valve. By doing so, the area of the dead zone which is not sterilized in the water treatment apparatus can be minimized.

1 is a view showing the configuration of a water treatment apparatus according to a first embodiment of the present invention,
2 is a view showing a water extraction unit in the water treatment apparatus according to the first embodiment of the present invention,
3 and 4 and 5 is a view showing a drainage process, wastewater inflow process and sterilization circulation process in the water treatment apparatus according to the first embodiment of the present invention, respectively,
6, 7 and 8 are views showing the drainage process, wastewater inflow process and sterilization circulation process in the water treatment apparatus according to the second embodiment of the present invention, respectively,
9, 10, and 11 are views showing a drainage process, a wastewater inflow process, and a sterilization circulation process in the water treatment apparatus according to the third embodiment of the present invention, respectively.
12, 13 and 14 are views showing a drainage process, a wastewater inflow process and a sterilization circulation process in the water treatment apparatus according to the fourth embodiment of the present invention, respectively;
15 is a view showing a water extraction unit in the water treatment apparatus according to the fourth embodiment of the present invention,
16, 17, and 18 are views showing a drainage process, a wastewater inflow process, and a sterilization circulation process in the water treatment apparatus according to the fifth embodiment of the present invention, respectively.
19 is a view showing the configuration of a water treatment apparatus according to a sixth embodiment of the present invention.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First Embodiment

1 is a view showing the configuration of a water treatment apparatus according to a first embodiment of the present invention, Figure 2 is a view showing a water extraction unit in the water treatment apparatus according to the first embodiment of the present invention.

The water treatment apparatus according to the first embodiment of the present invention, the filter unit 100 consisting of a plurality of filters (110, 120, 130, 140) for filtering the raw water, the storage unit 200 for storing the filtered water from the filter unit 100 Is installed on the circulation passage connected to the storage unit 200, the sterilization module 300 for supplying sterilization water, and a water extraction unit 400 for withdrawing the water stored in the storage unit 200 to the user .

The filter unit 100 passes through a pre-treatment sedimentation filter 110 that filters waste in raw water, a pre-carbon filter 120 for removing chlorine components and odors in raw water, and the pre-carbon filter 120. Reverse osmosis membrane filter 130 for removing ionic heavy metal remaining in the raw water, and post carbon filter 140 for removing chlorine components or odor contained in the purified water passed through the reverse osmosis membrane filter 130 It may be made of.

The arrangement order before and after the reverse osmosis membrane filter 130 and the post carbon filter 140 may be reversed, and a pressurizing pump for supplying raw water supplied to the reverse osmosis membrane filter 130 at a predetermined pressure (FIG. Not shown) may be provided.

The filters 110, 120, 130, and 140 are interconnected by a plurality of pipes 501, 502, and 503 to form a purified water movement line through which purified water moves, and connects the pretreated sediment filter 110 and the pre-carbon filter 120. The raw water valve 150 for controlling the inflow of raw water may be provided on the pipe 501.

The raw water valve 150 may be installed at the inlet side of the pretreatment sedimentation filter 110, but since the raw water contains a large amount of foreign substances, when the raw water flows directly into the raw water valve 150, the durability of the raw water valve 150 may be reduced. Since it may fall, it is preferable to pass the raw water valve 150 after the first filtering the foreign matter contained in the raw water in the pre-treatment settling filter 110.

The storage unit 200 is for storing the water filtered by the filter unit 100 and is connected to the post carbon filter 140 by a purified water supply line 504 to store cold water and purified water. A storage tank 210 and the second storage tank 220 is connected to the first storage tank 210 to store hot water.

The first storage tank 210 is composed of an upper space (210a) for storing the constant temperature of room temperature and a lower space (210b) for storing cold water. The upper space 210a and the lower space 210b are divided by the separating plate 213, and are formed to extend downward from the center of the separating plate 213 to penetrate the lower space 210b. A connection passage 214 is provided to supply the circulation line 521 without mixing with cold water.

Cooling coils (not shown) are provided on the outer circumference of the lower space 210b for cooling the stored purified water, and heaters for heating the stored purified water on the outer circumference of the second storage tank 220. Not shown) may be provided. Of course, the cooling coil and the heater may be provided inside the lower space 210b of the first storage tank 210 and the second storage tank 220.

The sterilizing module 300, by electrolysis of water, for example by the reaction of chloride ion with the hydrogen, oxygen and the like contained in raw water HOCl, ClO ^- by creating a sterilizing substance such as ions, a positive electrode (not shown in the drawing) And a negative electrode (not shown), and the positive electrode and the negative electrode may be configured to be supplied with power by a power supply unit (not shown in the figure), the electrode may be coated with platinum or iridium.

The purified water and cold water of the first storage tank 210 and hot water of the second storage tank 220 are supplied to the user through the water intake unit 400. The water intake unit 400 is installed on the water purification line 531 connected to the upper space 210a of the first storage tank 210, and the water intake valve 410 for regulating the supply of purified water, and the first A cold water intake valve 420 installed on the cold water intake line 532 connected to the lower space 210b of the storage tank 210 to regulate the supply of cold water, and hot water connected to an upper portion of the second storage tank 220. A hot water intake valve 430 installed on the intake line 533 to regulate the supply of hot water, and a water intake shutoff valve 440 to regulate the supply of water passing through any one of the three intake valves 410, 420, and 430. , One intake port 450 for supplying the water passing through the intake shutoff valve 440 to the user.

The water intake shutoff valve 440 may supply purified water, cold water or hot water to a user by opening together with any one of the three intake valves 410, 420, 430 when the purified water, cold water and hot water are discharged. That is, when the purified water is taken out, the cold water intake valve 420 and the hot water intake valve 430 are turned off, and the purified water intake valve 410 and the water intake shutoff valve 440 are turned on. 210) The purified water of the upper space 210a is supplied to the user through the intake port 450, and water is extracted in the same manner even when the cold water and the hot water are discharged.

Meanwhile, the purified water intake valve 410, the cold water intake valve 420, and the hot water intake valve 430 are connected to each other by a water outlet part connection passage 455. That is, the water outlet part connection passage 455 is a flow path connecting the purified water intake valve 410, the cold water intake valve 420, and the hot water intake valve 430 to each other. The hot water is supplied to the intake port 450 through the water outlet part connection passage 455. The purified water intake valve 410, the cold water intake valve 420, and the hot water intake valve 430 may be integrally coupled to a body forming the outlet portion connection passage 455.

In this case, a sterilization circulation path is formed by using the cold water intake valve 420 and the hot water intake valve 430. During the sterilization circulation, the purified water intake valve 410 and the intake cutoff valve 440 are turned off. When the cold water intake valve 420 and the hot water intake valve 430 are turned on, the water in the lower space 210b of the first storage tank 210 is discharged through the cold water intake valve 420 as shown in FIG. 2. After flowing into the secondary connection passage 455 and discharged to the hot water intake valve 430 is introduced into the upper portion of the second storage tank 220 via the hot water intake line 533.

On the other hand, the circulation passage is provided to circulate the sterilization water between the first storage tank 210, the second storage tank 220 and the sterilization module 300, in the present embodiment the circulation passage 511, the cold water intake line 532, the water outlet part connecting passage 455, the hot water intake line 533, and the circulation line 521.

One end of the first connection line 511 is connected to the connection passage 214 of the first storage tank 210, and the other end is connected to the circulation line 521, and the upper space 210a of the first storage tank 210 is connected. Water is supplied to the circulation line 521.

One end of the circulation line 521 is connected to the lower portion of the second storage tank 220, and the other end thereof is connected to the upper portion of the first storage tank 210.

On the circulation line 521, a sterilization module 300 for generating sterilization water, a circulation pump 310 for circulating sterilization water, and a circulation for controlling whether water is supplied to the circulation line 521 during sterilization circulation. Line blocking valve 340 is provided, the drain line 541 for draining the water of the first storage tank 210 and the second storage tank 220 to the outside in the sterilization mode branched on the circulation line 521 At the point where the circulation line 521 and the drain line 541 cross each other, a flow path switching valve 320 for switching the flow direction is provided.

Due to such a configuration, the cold water in the lower space 210b of the first storage tank 210 is drained through the second storage tank through the cold water intake line 532, the outlet portion connecting passage 455, and the hot water intake line 533. Inflow to the 220 and mixed with hot water, the mixed water is discharged to the circulation line 521 side through the lower portion of the second storage tank 220. At the same time, the purified water of the upper space 210a of the first storage tank 210 is discharged to the circulation line 521 through the first connection line 511 and mixed with water discharged from the second storage tank 220. After the flow to the circulation line 521 and the drain line 541, the hot water stored in the second storage tank 220 flows directly into the circulation line 521 as compared to the circulation line 521 and the drain line The internal material of the 541 and the circulation pump 310 does not need to be formed of a material having high heat resistance, thereby reducing material costs.

The sterilization water generated by the sterilization module 300 passes through the first storage tank 210, the purified water intake line 531, the purified water intake valve 410, the cold water intake line 532, and the cold water intake valve 420. Since the inlet is connected to the second storage tank 220 through the hot water intake line 533 after being filled in the connection passage 455, the sterilization is performed to the front of the water inlet shutoff valve 440 in the sterilization mode, so that the sterilization is performed inside the water treatment device. This can minimize the dead zone area.

The reverse osmosis membrane filter 130, an inlet 131 through which the raw water passed through the pre-carbon filter 120 is introduced, and a purified water outlet 132 through which water filtered by an internal filter member (not shown) is discharged. And a wastewater discharge port 133 through which the wastewater not filtered by the filter member is discharged.

A first wastewater line 551 is connected between the wastewater outlet 133 and the circulation line 521, and a second wastewater line 552 is connected between the first wastewater line 551 and the drain line 541. do.

Since the ratio of the wastewater discharged through the wastewater discharge port 133 and the purified water discharged through the purified water discharge port 132 is about 8: 2, the amount of water that is discarded is reduced on the second wastewater line 552. Wastewater regulator 550 for adjusting the wastewater separation ratio is provided.

The wastewater regulator 550 may be configured to block a portion of the passage through which water flows in order to limit the amount of water passing through the second wastewater line 552 within a predetermined range.

The first wastewater line blocking valve 360 is installed on the first wastewater line 551 to control whether wastewater is supplied to the circulation line 521, and the wastewater discharged through the wastewater outlet 133 in the sterilization mode. To be supplied to the circulation line 521.

Some of the wastewater discharged from the reverse osmosis membrane filter 130 is discharged to the outside through the second wastewater line 552 and the drainage line 541 after the discharge is controlled by the wastewater regulator 550, the rest is circulated After entering the first storage tank 210 and the second storage tank 220 through the line 541, the sterilization water is generated while passing through the sterilization module 300 during the sterilization circulation, and thus the first storage tank 210 and the second storage tank 210. Storage tank 220, water purification line (531), The cold water intake line 532, the hot water intake line 533, the water outlet portion connecting passage 455, the first connection line 511 and the circulation line 521 is filled with sterilization cleaning.

Wastewater discharged through the wastewater outlet 133 is concentrated water that is not filtered through the reverse osmosis membrane filter 130, and the concentrated water includes dissolved ionic substances (Cl-; chlorine ions) included in the raw water. It is contained at a higher concentration than purified water, so that the electrolysis in the sterilization module 300 can generate more sterilization materials than electrolysis using raw water or purified water, which can improve sterilization efficiency as well as waste water. Since waste water is used, waste of waste water can be minimized.

Sterilization mode according to the first embodiment of the present invention, since the drainage → waste water inflow → sterilization circulation → sterilization water drain → rinsing water inflow → rinsing water drain → purified water inflow order, The water treatment method in the water treatment apparatus according to the first embodiment will be described.

Hereinafter, in the drawings showing the operating state of the water treatment apparatus according to the present embodiment, when on / off of the valve is not described, both on and off are possible, and all other implementations are performed. The same applies to the case of the example.

3 is a view showing a drainage process in a water treatment apparatus according to a first embodiment of the present invention, FIG. 4 is a view showing a wastewater inflow process in a water treatment apparatus according to the first embodiment of the present invention, and FIG. 1 is a view showing a sterilization cycle in the water treatment apparatus according to the embodiment.

In the present embodiment, since the purified water filtered by the reverse osmosis membrane filter 130 is a state in which dissolved ionic substances necessary for electrolysis are removed from the sterilization module 300, the first storage tank 210 and the second storage tank ( If the sterilization cycle is carried out using water already stored in 220, there is a problem that less sterilization material is generated. Therefore, in the case of the present invention, it is preferable to drain the water stored in the first storage tank 210 and the second storage tank 220 before performing the sterilization circulation.

When the sterilization mode is activated, as shown in FIG. 3, the raw water valve 150, the sterilization module 300, the first wastewater line shutoff valve 360 and the intake shutoff valve 440 are in an off state and cold water. The intake valve 420, the hot water intake valve 430, and the circulation line shutoff valve 340 operate the circulation pump 310 in an on state. In this case, the flow path switching valve 320 is set in the opening and closing direction so that the direction of the drain line 541 in the circulation pump 310 communicates, and the flow is blocked in the direction of the sterilization module 300. The purified water intake valve 410 may be turned off as well as on, and in the on state, water in the upper space 210a may be purified water intake line 531 and the first connection line 511. Is discharged through.

In this case, the water of the first storage tank 210 and the water of the second storage tank 220 are mixed and drained in a state in which the temperature is dropped. When the water level of the first storage tank 210 is lowered as the drainage proceeds, the water pressure is reduced. Since the amount of water mixed in the hot water of the second storage tank 220 is reduced, the time for which the hot water temperature to be drained decreases, so that the inside of the circulation pump 310 has to be made of a material having high heat resistance. In order to prevent this, the raw water valve 150 is turned on for a predetermined time so that water is supplied from the filter unit 100 to the first storage tank 210 so that the water pressure of the first storage tank 210 drops. It is desirable to prevent that. In the case of the reverse osmosis membrane filter 130, since the amount of purified water is small, the first wastewater line shutoff valve 360 may be turned on to supply wastewater together with purified water.

When the circulation pump 310 operates, the purified water of the upper space 210a of the first storage tank 210 flows toward the circulation line 521 through the first connection line 511 and the purified water intake line 531. Cold water in the lower space 210b of the first storage tank 210 flows into the second storage tank 220 through the cold water intake line 532, the outlet portion connecting passage 455, and the hot water intake line 533. After mixing with hot water flows in the circulation line 521 direction. The water supplied through the first connection line 511 and the water discharged from the second storage tank 220 are mixed in the circulation line 541 and the circulation line 521 and the circulation pump in a state in which the temperature is dropped. It is drained to the outside via the 310 and the drain line 541. Since the circulation pump 310 is used not only at the time of circulation of the sterilization water but also at the time of drainage of the sterilization water and the rinsing water, the drainage time can be shortened by draining the sterilization water and the rinsing water more smoothly, and one circulation pump 310 is provided. By using the two functions can be implemented circulation and drainage can reduce the cost and efficiently use the space inside the water treatment device.

When the drainage is completed, the wastewater inflow process is performed to generate the sterilizing water. As shown in FIG. 4, the raw water valve 150 is turned off in a state in which the circulation line blocking valve 340 and the circulation pump 310 are turned off. When the first wastewater line shutoff valve 360 is turned on, the purified water filtered by the reverse osmosis membrane filter 130 flows into the first storage tank 210 through the post carbon filter 140 and the reverse osmosis membrane. Some of the wastewater not filtered by the filter 130 is discharged to the outside through the wastewater regulator 550 and the drainage line 541, the remaining wastewater through the first wastewater line blocking valve 360 and the circulation line 521. It is introduced into the first storage tank 210. In this case, the purified water intake valve 410, the cold water intake valve 420, and the hot water intake valve 430 may be turned off as well as on, and if the first storage tank 210 is on. Wastewater introduced into the upper and lower portions of the second storage tank 220 via the purified water intake line 531, the cold water intake line 532, the hot water intake line 533, and the first connection line 511, respectively. Through it.

The amount of wastewater drained through the drainage line 541 is controlled by the wastewater regulator 550, and then only a very small amount of wastewater is drained, and most of the remaining wastewater is the first wastewater line 551 and the first wastewater line blocking valve 360. It is supplied to the first storage tank 210 and the second storage tank 220 through.

The first storage tank 210 is supplied not only wastewater but also purified water through a purified water supply line 504. The wastewater supplied through the first wastewater line 551 is concentrated water containing a large amount of ionic material. Since the amount of purified water supplied through the purified water supply line 504 is smaller than the amount of wastewater supplied through the first wastewater line 551, the purified water supplied through the purified water supply line 504 is the first. Even if it is mixed with the waste water in the storage tank 210, the sterilized water generated using the same can sufficiently perform the sterilization function.

When the inflow of wastewater to the first storage tank 210 and the second storage tank 220 is completed through such a process, a sterilization circulation process is performed, as shown in FIG. 5, the raw water valve 150 and the first wastewater. The line cutoff valve 360 and the water intake shutoff valve 440 are in an off state, the cold water intake valve 420, the hot water intake valve 430, the circulation line shutoff valve 340, and the sterilization module 300 are turned on. When the circulation pump 310 is operated in the ON state, the waste water stored in the first storage tank 210 and the second storage tank 220 passes through the sterilization module 300 to generate sterilization water. The sterilizing water is filled in the first storage tank 210 and the second storage tank 220 while circulating in the circulation passage to effect sterilization. In this case, the purified water intake valve 410 may be turned off as well as on, and in the case of on, sterilization is performed inside the purified water intake line 531 connected to the upper space 210a.

Such a circulation process may be performed for a set time, the circulation pump 310 and the sterilization module 300 may be configured to continue to operate during the circulation process, by stopping after a certain time to wait for a certain time The first storage tank 210 and the second storage tank 220 may be configured to be sterilized.

The sterilization water generated by the sterilization module 300 as described above is introduced into the lower space 210b of the first storage tank 210 by a circulation process and at the same time the cold water intake line 532 and the second connection line 512 and Since the hot water intake line 533 flows into the second storage tank 220 and is simultaneously filled in the first storage tank 210 and the second storage tank 220, the sterilizing water is first filled on one side and later filled on the other side. Compared to the case there is no difference in time that the sterilization action is performed in the first storage tank 210 and the second storage tank 220 can be sterilized uniformly.

When the sterilization process is finished, the sterilization water is drained. The sterilization water is drained by the same process as the waste water draining process.

As such, when the drainage of the sterilizing water is completed, a rinsing process is performed to wash the sterilizing water remaining in the first storage tank 210 and the second storage tank 220. The inflow of the rinsing water is the same as the inflow of the waste water. In this case, even if the wastewater not filtered in the reverse osmosis membrane filter 130 can be used as a rinsing water, and the rinsing time compared to the case where the rinsing process is performed only with purified water filtered by the reverse osmosis membrane filter 130. Can be shortened. In this case, the rinsing water may be further circulated along the path shown in FIG. 5 like the circulation of the sterilizing water or the rinsing process may be repeated to further improve the rinsing effect.

When the rinsing process is completed, the rinsing water draining process for draining the rinsing water of the first storage tank 210 and the second storage tank 220 to the outside, the rinsing water draining process is the same as the draining process shown in FIG. Therefore, detailed description is omitted.

In addition, when the rinsing water drainage process is completed, the purified water inflow process for filling the purified water into the first storage tank 210 and the second storage tank 220 is carried out, the purified water inflow process is the first wastewater line in the state shown in FIG. When the shutoff valve 360 is turned off, the purified water filtered through the filter unit 100 is filled into the first storage tank 210 and the second storage tank 220 via the purified water supply line 504 to sterilize. The mode ends.

The sterilization mode as described above may be set to be automatically repeated at regular intervals, or may be configured to be performed by a user's selection.

Second Embodiment

6 is a view showing a drainage process in the water treatment apparatus according to a second embodiment of the present invention, Figure 7 is a view showing a wastewater inflow process in the water treatment apparatus according to a second embodiment of the present invention, Figure 8 is a first embodiment of the present invention 2 is a view showing a sterilization circulation process in the water treatment apparatus according to the second embodiment.

All of the configuration of the present embodiment is the same as the water treatment apparatus according to the first embodiment, it is characterized in that the second connection line 512 and the second connection line blocking valve 330 is provided instead of the water intake blocking valve 440. .

The second connection line 512 connects between the cold water intake line 532 and the hot water intake line 533, whereby water in the lower space 210b of the first storage tank 210 is in the cold water intake line 532. And through the second connection line 512 and the hot water intake line 533 is to flow into the upper portion of the second storage tank 220.

The second connection line shut-off valve 330 is provided on the second connection line 512, during sterilization circulation is turned on (On) so that water is circulated through the second connection line 512, when intake The water in the lower space 210b is supplied to the user through the intake port 450 through the cold water intake line 532 and the cold water intake valve 420 or the water in the second storage tank 220 is the hot water intake line ( 533 and the hot water intake valve 430 are turned off to be supplied to the user through the intake port 450.

Due to this configuration, the circulation passage of the present embodiment includes a first connection line 511, a cold water intake line 532, a second connection line 512, a hot water intake line 533, and a circulation line 521.

Also in the case of the second embodiment is the same as the first embodiment drainage → waste water inflow → sterilization circulation → sterilization water drain → rinsing water inflow → rinsing water drain → purified water inflow order, each step operation state is shown in Figs. As shown in FIG. 3 to FIG. 5, the water intake valve 410, the cold water intake valve 420, and the hot water intake valve 430 are turned off during drainage and sterilization circulation. 2 connection line shut-off valve 330 is turned on so that the water in the lower space (210b) is the second storage tank through the cold water intake line 532, the second connection line 512 and the hot water intake line (533). The only difference is that it is allowed to enter (220).

Third Embodiment

9 is a view showing a drainage process in a water treatment apparatus according to a third embodiment of the present invention, FIG. 10 is a view showing a wastewater inflow process in a water treatment apparatus according to a third embodiment of the present invention, and FIG. 3 is a view showing a sterilization circulation process in the water treatment apparatus according to the third embodiment.

All configurations of the present embodiment are the same as the water treatment apparatus according to the first embodiment, but two intake ports 450-1 and 450-2 are provided, and the second connection line 512 and the second connection instead of the intake shutoff valve 440 are provided. It is characterized in that the line shut-off valve 330 is provided.

The intake ports 450-1 and 450-2 are provided with a cold water intake port 450-1 for supplying cold water to the user in the lower space 210b of the first storage tank 210 and hot water of the second storage tank 220. It consists of a hot water intake (450-2) for supplying to the user.

A cold water intake line 532 and a cold water intake valve 420-1 are provided between the lower space 210b of the first storage tank 210 and the cold water intake port 450-1, and the second storage tank 220 is provided. The hot water intake line 533 and the hot water intake valve 430-1 are provided between the hot water intake port 450-2.

A second connection line 512 is provided between the cold water intake line 532 and the hot water intake line 533 so that the sterilizing water in the lower space 210b of the first storage tank 210 can flow into the second storage tank 220. Is provided. On the second connection line 512, the water is circulated through the second connection line 512 during the sterilization circulation, and during the intake, the cold water in the lower space 210b is cold intake port 450-. The second connection line shut-off valve 330 that is off to be supplied to the user through the 1) or to supply the hot water of the second storage tank 220 to the user through the hot water inlet 450-2 is provided. It is provided.

Also in the case of the third embodiment is the same as the first embodiment drainage → waste water inflow → sterilization circulation → sterilization water drain → rinsing water inflow → rinsing water drain → purified water inflow order, each step operation state is shown in Figures 9 to 11 As shown in FIG. 3 to FIG. 5, the second connection line shutoff valve 330 is turned on during drainage and sterilization circulation so that the water in the lower space 210b is cold intake line. The only difference is that 532 and the second connection line 512 and the hot water intake line 533 are introduced into the second storage tank.

Fourth Embodiment

12 is a view showing a drainage process in a water treatment apparatus according to a fourth embodiment of the present invention, FIG. 13 is a view showing a wastewater inflow process in a water treatment apparatus according to a fourth embodiment of the present invention, and FIG. 4 is a view illustrating a sterilization circulation process in a water treatment apparatus according to a fourth embodiment, and FIG. 15 is a view showing a water extraction unit in a water treatment apparatus according to a fourth embodiment of the present invention.

Compared to the third embodiment, the present embodiment has the same configuration as the filter unit 100 and the storage unit 200, and the cold water for supplying the cold water in the lower space 210b of the first storage tank 210 to the user. Hot water intake line 533 and hot water intake valve 430 for supplying hot water from the water intake line 532, the cold water intake valve 420, the cold water intake port 450-1, and the second storage tank 220 to the user; The same is true in that the hot water intake port 450-2 is provided.

In the present embodiment, unlike the first to third embodiments, the circulation line 521 is not provided, and the cold water intake line 532, the second connection line 512a, 512b, 512c, and 512d and the hot water intake line ( 533) and the first connection line 511 is characterized in that the circulation flow path is formed.

The cold water intake line 532 and the cold water intake valve 420 are sequentially connected between the lower space 210b and the cold water intake port 450-1, and the lower space during sterilization circulation at one side of the cold water intake valve 420. A cold water side connection valve 460 is provided to control whether water of 210b is supplied to the second connection lines 512a, 512b, 512c, and 512d and the hot water intake line 533.

A hot water intake line 533 and a hot water intake valve 430 are sequentially connected between the upper portion of the second storage tank 220 and the hot water intake port 450-2, and a sterilization circulation is provided at one side of the hot water intake valve 430. The hot water side connection valve 470 that controls whether water from the lower space 210b passing through the cold water side connection valve 460 is supplied to the second storage tank 220 via the hot water intake line 533. ) Is provided.

The second connection lines 512a, 512b, 512c, and 512d connect between the cold water side connection valve 460 and the hot water side connection valve 470, and the second connection lines 512a, 512b, 512c, and 512d. The sterilization module 300 and the circulation pump 310 is provided on.

A wastewater drainage line 553 is connected to the wastewater discharge port 133 of the reverse osmosis membrane filter 130, and the wastewater that is not filtered by the reverse osmosis membrane filter 130 is transferred to the outside through the wastewater drainage line 553. Discharged. In this case, a wastewater controller 550 for limiting the discharge of wastewater discharged through the wastewater drainage line 553 is provided.

The wastewater drainage line 553 and the second connection line 512a, 512b, 512c, 512d are connected by a third connection line 513 and a drainage connection line 514. The third connection line 513 crosses the second connection line 512a, 512b, 512c, 512d at a point close to the cold water side connection valve 460 of the second connection line 512a, 512b, 512c, 512d. The drain connection line 514 is connected to the second connection lines 512a, 512b, 512c and 512d at a point close to the hot water side connection valve 470 of the second connection lines 512a, 512b, 512c and 512d. To cross.

The third connection line 513 is provided with a third connection line shut-off valve 350 that is turned off during sterilization circulation and is turned on during drainage and wastewater inflow, and at the time of drainage and wastewater inflow. The wastewater drainage line 553 and the second connection line (512a, 512b, 512c, 512d) is connected.

At the point where the second connection lines 512a, 512b, 512c, 512d and the drain connection line 514 intersect, the flow direction of water flowing through the second connection lines 512a, 512b, 512c, 512d is discharged. A flow path switching valve 370 is provided for switching to any one of the connection line 514 and the hot water intake line 533. That is, when it is desired to drain the water flowing through the second connection lines 512a, 512b, 512c, 512d to the outside, the flow path switching valve 370 in the direction of the drainage connection line 514 and the wastewater drainage line 553. To open and flow water flowing through the second connection lines 512a, 512b, 512c, and 512d into the second storage tank 220 through the hot water side connection valve 470 and the hot water intake line 533. In this case, the flow path switching valve 370 is opened in the direction of the hot water intake line 553.

A check valve 560 is provided on the drain connection line 514 so that water flows only in the direction of the waste water drain line 553, and the water drained to the outside through the waste water regulator 550 is connected to the drain connection line. The second connection line 512a, 512b, 512c, and 512d may be prevented from flowing through the 514.

A lower portion of the second storage tank 220 and the wastewater drainage line 553 are connected by a second storage tank connection line 515, and the first connection line is connected to the second storage tank connection line 515. One side of the 511 is connected, and the second storage tank connection line 515 is off during sterilization circulation so that water discharged from the second storage tank 220 does not flow into the wastewater drainage line 553. A second storage tank shut-off valve 340-1 is provided to form a circulation passage by allowing the first storage tank 210 to flow into the first storage tank 210 through the first connection line 511.

On the other hand, as shown in Figure 15, between the cold water intake valve 420 and the cold water side connection valve 460, the hot water intake connection connecting the hot water intake valve 430 and the hot water side connection valve 470, respectively Flow paths 455-1 and 455-2 are provided. The water supplied from the cold water intake line 532 flows into one of the cold water intake valve 420 and the cold water side connection valve 460 after flowing into the water outlet part connecting passage 455-1. To open and close the valve. In addition, the water supplied from the hot water intake line 533 flows into any one of the hot water intake valve 430 and the hot water side connection valve 470 after the water is introduced into the water outlet part flow passage 455-2. To open and close the valve.

In the case of the fourth embodiment, the same procedure as in the first embodiment includes drainage → wastewater inflow → sterilization circulation → sterilization water drainage → rinsing water inflow → rinsing water drainage → purified water inflow. The water treatment method of the water treatment apparatus according to the embodiment will be described.

When the sterilization mode is activated, as shown in FIG. 12, the raw water valve 150, the sterilization module 300, the cold water intake valve 420, the hot water intake valve 430, and the hot water side connection valve 470 are turned off ( Off), the cold water side connection valve 460, the second storage tank shut-off valve 340-1 and the third connection line shut-off valve 350 operates the circulation pump 310 in the On (On) state. In this case, the flow path switching valve 370 is set in the opening and closing direction so that the direction of the drain connection line 514 in the circulation pump (310).

When the operation is performed in this way, the hot water of the second storage tank 220 is combined with the purified water of the upper space 210a of the first storage tank 210, the second storage tank connection line 515, wastewater drainage in a state in which the temperature is dropped. After passing through the line 553 and the third connection line 513 in sequence, it flows into the second connection lines 512b and 512c. In addition, the water in the lower space 210b of the first storage tank 210 flows into the second connection lines 512a and 512b through the cold water intake line 532 and the water outlet part connecting passage 455-1, and then, It is combined with the water introduced into the second connection line (512b, 512c) through the three connection line (553). The water of the first storage tank 210 and the second storage tank 220 introduced into the second connection line 512a, 512b, 512c is flow path switching valve 370, drain connection line 514 and wastewater drainage line After passing through 553 in sequence, it is drained out.

When the drainage is completed as described above, the wastewater inflow process is performed. As shown in FIG. 13, the cold water intake valve 420, the hot water intake valve 430, the sterilization module 300, and the circulation pump 310 are turned off. State, the raw water valve 150, the cold water side connection valve 460, the hot water side connection valve 470, the second storage tank shut-off valve 340-1 and the third connection line shut-off valve 350 On In this state, the wastewater which is not filtered by the reverse osmosis membrane filter 130 flows to the wastewater drainage line 553, and a part of the wastewater passes through the second storage tank connection line 515 and the first connection line 511. The second storage tank 220 and the first storage tank 210 is introduced into the upper space (210a). In addition, the remaining portion of the wastewater flowing along the wastewater drainage line (553) is the third connection line 513, the second connection line (512a, b), the outlet connection passage (455-1) and cold water intake line (532) Through the first storage tank 210 flows into the lower space (210b).

In addition, since the hot water connection valve 470 is in an on state, when the wastewater flows into the second storage tank 220 and fills up to the full water level, the hot water connection valve 470 is discharged through the upper portion of the second storage tank 220 to be connected to the second connection line 512a. The first storage tank 210 flows into the lower space 210b via 512b, 512c, and 512d. As such, wastewater is introduced through a plurality of paths connected to the first storage tank 210 and the second storage tank 220, thereby reducing the time required for inflow of the wastewater.

In this case, some wastewater is drained to the outside through the wastewater regulator 550, but the amount thereof is very small, and most of the remaining wastewater is supplied to the first storage tank 210 through the third connection line 513.

In addition, even if some of the purified water is supplied to the first storage tank 210 through the purified water supply line 504, since the concentration of ionic substances in the wastewater supplied through the wastewater drainage line 553 is high, the wastewater from the first storage tank 210 is high. Even if the and purified water are mixed, enough sterilized water can be generated.

When the inflow of wastewater to the first storage tank 210 and the second storage tank 220 is completed through such a process, a sterilization circulation process is performed, as shown in FIG. 14, the raw water valve 150 and the cold water intake valve. 420, the hot water intake valve 430, the second storage tank shutoff valve 340-1, and the third connection line shutoff valve 350 are in an off state, and the cold water side connection valve 460 is connected to the hot water side. When the valve 470 and the sterilization module 300 operate the circulation pump 310 in the on state, the water in the lower space 210b of the first storage tank 210 is discharged to the cold water intake line 532 to sterilize. The sterilizing water is generated while passing through the module 300 and flows into the second storage tank 220 via the second connection lines 512b, 512c, and 512d and the hot water intake line 533, and the second storage tank 220. ) Sterilized water introduced into the first storage tank 210 into the upper space 210a via the first connection line 511, and the upper space 210a and the lower space 210b communicate with each other. Furnace, while the waste water of the first storage tank 210 and the second storage tank 220 circulates through the circulation passage to generate sterilization water is sterilized.

When the sterilization process is finished, the sterilization water is drained, and the sterilization water is drained by the same process as the waste water draining process. The sterilization water in the first storage tank 210 and the second storage tank 220 is drained. Drain to the outside via line 553.

As such, when the drainage of the sterilizing water is completed, a rinsing process is performed to wash the sterilizing water remaining in the first storage tank 210 and the second storage tank 220. The inflow of the rinsing water is the same as the inflow of the waste water. Wastewater that is not filtered by the reverse osmosis membrane filter 130 is introduced into the first storage tank 210 and the second storage tank 220 and used as rinsing water.

In addition, when the rinsing water drainage process is completed, the purified water inflow process for filling the purified water into the first storage tank 210 and the second storage tank 220 is carried out, the purified water inflow process is the second storage tank in the state shown in FIG. When the shutoff valve 340-1 and the third connection line shutoff valve 350, the cold water side connection valve 460, and the hot water side connection valve 470 are turned off, the membrane is not filtered by the reverse osmosis membrane filter 130. The wastewater is discharged to the outside via the wastewater drainage line 553 after the discharge rate is controlled in the wastewater regulator 550, and the purified water filtered through the reverse osmosis membrane filter 130 is passed through the purified water supply line 504. The sterilization mode is terminated by filling the storage tank 210 and the second storage tank 220.

Fifth Embodiment

FIG. 16 is a view showing a drainage process in a water treatment apparatus according to a fifth embodiment of the present invention, FIG. 17 is a view showing a wastewater inflow process in a water treatment apparatus according to a fifth embodiment of the present invention, and FIG. 5 is a view showing a sterilization cycle in the water treatment apparatus according to the fifth embodiment.

All of the configuration of the present embodiment is the same as the water treatment apparatus according to the fourth embodiment, but one intake port 450 is provided, the cold water side connection valve 460 and the hot water side to operate on / off (On) Instead of the connection valve 470 is characterized in that the cold water side connection valve (460-1) and hot water side connection valve 470-1 which functions as a flow path switching valve is provided.

The water intake port 450 is a water intake valve 410 and a water intake line 531 for supplying purified water to the user, a cold water intake valve 420 and a cold water intake line 532 for supplying cold water to supply hot water The hot water intake valve 430 and the hot water intake line 533 are connected to each other.

The cold water side connection valve 460-1 provided on the cold water intake line 532 blocks the supply of water in the lower space 210b to the intake port 450 during sterilization circulation, and the second connection line. This is for feeding in the (512a, 512b, 512c, 512d) directions. Water supplied to the second connection lines 512a, 512b, 512c, and 512d flows into the second storage tank 220 through the hot water intake line 533.

The hot water side connection valve 470-1 provided on the hot water intake line 533 is supplied through the cold water intake line 532 and the second connection lines 512a, 512b, 512c, and 512d during sterilization circulation. It is to block the supply of hot water to the intake port 450 side, and to supply in the direction of the hot water intake line (533).

In addition, when the sterilization mode is operated, circulation is performed by the cold water intake line 532, the second connection line 512a, 512b, 512c, and 512d, the hot water intake line 533, and the first connection line 511 as in the fourth embodiment. A flow path is formed.

In the case of the fifth embodiment as in the fourth embodiment, drainage → wastewater inflow → sterilization circulation → sterilization water drainage → rinsing water inflow → rinsing water drainage → water purification inflow order. As shown in FIG. 12 to FIG. 14, the same as that described in FIGS. 12 to 14, but the cold water side connection valve 460-1 at the time of drainage, wastewater inflow, and sterilization circulation has a cold water intake line 532 and a second connection line 512a. The opening and closing direction is set to communicate with each other, and the opening and closing direction is set so that the hot water side connection valve 470-1 communicates with the hot water intake line 533 and the second connection line 512d at the time of waste water inflow and sterilization circulation. do.

In the present embodiment, although the flow path switching valve corresponding to the cold water side connection valve 460-1 is not provided in the purified water intake line 531, the purified water side connection valve functioning as the flow path switching valve in the purified water intake line 531. (Not shown) and connecting the purified water side connection valve to the second connection line 512a, the sterilization water may be configured to pass through the purified water intake line 531 during sterilization circulation.

Sixth Embodiment

19 is a view showing the configuration of a water treatment apparatus according to a sixth embodiment of the present invention, all configurations are the same as the water treatment apparatus according to the first embodiment, but the second wastewater line is blocked on the second wastewater line 552. The valve 540 is provided, and the purified water supply line 504 is different from the first embodiment in that the purified water line shutoff valve 160 is further provided.

The purified water supply line 504 may be provided with a purified water line shutoff valve 160 for controlling the supply of purified water. When the purified water line shutoff valve 160 is turned off when the waste water is obtained, supply of purified water to the first storage tank 210 is blocked through the purified water supply line 504 and discharged from the reverse osmosis membrane filter 130. Since only the wastewater is supplied to the first storage tank 210 through the first wastewater line 551 and the circulation line 521, the concentration of the sterilizing material in the sterilizing water may be increased to improve the sterilizing effect.

In addition, when the wastewater is introduced separately from the wastewater regulator 550, the entire wastewater discharged from the reverse osmosis membrane filter 130 is supplied to the first storage tank 210 without draining the wastewater to the outside through the drainage line 541. The second wastewater line blocking valve 540 may be further provided on the second wastewater line 552. Accordingly, when the second wastewater line blocking valve 540 is turned off together with the purified water line blocking valve 160 in the wastewater inflow process, all the wastewater discharged from the reverse osmosis membrane filter 130 is stored in the first storage tank 210. ) And the second storage tank 220 can be shortened wastewater inflow time.

According to the present invention as described above, it is possible to minimize the waste of water discarded by generating the sterilized water by using the wastewater generated in the reverse osmosis membrane filter 130, high concentration by using the dissolved ionic material contained in the wastewater Since sterilization material is generated, sterilization efficiency can be improved. In addition, since the sterilization water is generated while circulating the water in the first storage tank 210 and the second storage tank 220, the first storage tank 210 and the second storage tank 220 can be uniformly sterilized. By mixing and draining the water of the first storage tank 210 and the second storage tank 220 at the time of drainage, the hot water is prevented from immediately flowing into the circulation line 521 and the circulation pump 310 to have high heat resistance. There is no need to use the material can lower the product price, it is possible to use the circulation pump 310 at the time of drainage, it is possible to quickly drain without the need for a separate drain pump. In addition, circulating through the cold water intake line 532 and the hot water intake line 533 to withdraw the cold water and hot water during the sterilization circulation, or purified water intake valve 410 and cold water intake valve 420 and hot water intake valve 430 In the case of circulating through the water outlet part connecting passage 455 interconnecting each other, it is possible to minimize the area of the dead zone that is not sterilized inside the water treatment apparatus.

As described above, the present invention is not limited to the above-described embodiments, and modifications apparent by those skilled in the art to which the present invention pertains may be made without departing from the technical spirit of the present invention claimed in the claims. It is possible that such modifications are within the scope of the present invention.

100 filter unit 110 pretreatment precipitation filter
120: pre-carbon filter 130: reverse osmosis membrane filter
131: inlet 132: water purification outlet
133 wastewater outlet 140 post carbon filter
150: raw water valve 160: purified water line shutoff valve
200: storage unit 210: first storage tank
210a: upper space 210b: lower space
213: separating plate 214: connecting euro
220: second storage tank 300: sterilization module
310: circulation pump 320, 370: flow path switching valve
330: second connection line shut-off valve 340: circulation line shut-off valve
350: third connection line shutoff valve 360: first wastewater line shutoff valve
400: water outlet 410: water intake valve
420,420-1: Cold water intake valve 430,430-1: Hot water intake valve
440: intake shutoff valve 450: intake port
450-1: cold water intake port 450-2: hot water intake port
455,455-1,455-2: Water outlet connection passage 460, 460-1: Cold water side connection valve
470, 470-1: Hot water side connecting valve 501,502,503: Raw water supply line
504: purified water supply line 511: first connection line
512: second connection line 513: third connection line
514: drainage connection line 515: second storage tank connection line
521: circulation line 531: water purification line
532: cold water intake line 533: hot water intake line
540: second wastewater line shutoff valve 541: wastewater drainage line
550: wastewater regulator 551: first wastewater line
552: second wastewater line 560: check valve

Claims

A filter unit including a reverse osmosis membrane filter to filter raw water;
A first storage tank and a second storage tank respectively storing the water filtered by the filter unit at different temperatures;
A circulation passage connected to circulate water discharged from the first storage tank to the first storage tank via the second storage tank;
A circulation pump for circulating water discharged from the first storage tank and the second storage tank through the circulation passage;
A sterilization module for supplying sterilization water to the first storage tank and the second storage tank by using the wastewater discharged from the reverse osmosis membrane filter and supplied to the circulation passage;
Water treatment device comprising a.

The method of claim 1,
The first storage tank is composed of an upper space for storing water at room temperature and a lower space for storing cold water;
The circulation passage,
The water in the lower space, the cold water intake line for connecting between the lower space and the cold water intake valve for supplying cold water to the user, and the second storage tank for connecting between the hot water intake valve for supplying hot water to the user After passing through the hot water intake line sequentially into the second storage tank, the water of the second storage tank is discharged to the water treatment device, characterized in that made to flow back into the first storage tank.

The method of claim 2,
The circulation passage may include a circulation line connected to the second storage tank and connected to the water discharged from the second storage tank to the first storage tank, and connected to supply the water in the upper space to the circulation line. Water treatment apparatus comprising a connection line.

The method of claim 2,
The circulation passage includes a water purification line connecting between the upper space and a water purification valve for supplying water of the upper space to the user;
The first storage tank and the second storage tank are connected through the purified water intake line, the cold water intake line, and the hot water intake line when the purified water intake valve, the cold water intake valve, and the hot water intake valve are turned on. Water treatment device characterized in that to form.

The method of claim 2,
The circulation passage includes a water purification line connecting between the upper space and a water purification valve for supplying water of the upper space to the user;
The purified water intake valve, the cold water intake valve and the hot water intake valve are connected to one intake port, and the intake shutoff valve is provided between the intake port and the intake valves, and in the sterilization mode, the purified water intake line and the purified water intake valve and the cold intake line And the sterilized water introduced through the cold water intake valve is formed between the intake shutoff valve and the intake valves and passes through the hot water intake valve and the hot water intake line via an outlet connection passage for communicating the intake valves with each other. Water treatment device, characterized in that flowing into the tank.

The method of claim 2,
The circulation passage is connected to a lower portion of the second storage tank, the circulation line is connected to the water discharged from the second storage tank to the first storage tank, so that the water in the upper space is supplied to the circulation line A water treatment device comprising: a first connection line connected to each other; and a second connection line connected to the water in the lower space into the second storage tank.

The method of claim 6,
The second connection line is a water treatment device, characterized in that configured to connect between the cold water intake line and hot water intake line.

The method of claim 7, wherein
On the second connection line is provided with a second connection line shut-off valve that is turned on (on) during the sterilization circulation and off when water from the first storage tank and the second storage tank is discharged to the user. Water treatment equipment.

The method of claim 2,
The circulation passage includes a circulation line connecting the water discharged from the second storage tank to the first storage tank;
A drain line for discharging the water of the first storage tank and the second storage tank to the outside is branched on the circulation line, the branch point is provided with a flow path switching valve for switching the flow direction of the sterilizing water Water treatment device.

The method of claim 9,
The circulation pump is provided between the second storage tank and the flow path switching valve is a water treatment device, characterized in that for operating when circulating and draining sterilization water.

The method of claim 2,
The circulation passage includes a circulation line connected to allow the water discharged from the second storage tank to flow into the first storage tank;
A first wastewater line shutoff valve connecting the wastewater outlet of the reverse osmosis membrane filter and the circulation line and branching the circulation line to drain water to the outside and controlling the supply of wastewater to the first storage tank; A first wastewater line installed and a second wastewater line branched from the first wastewater line and connected to the drain line; Water treatment device characterized in that the wastewater regulator for limiting the discharge of wastewater discharged to the outside through the second wastewater line.

The method of claim 2,
A cold water intake port for supplying cold water of the lower space to the user and a hot water intake port for supplying hot water of the second storage tank to the user;
The cold water intake line and the cold water intake valve are sequentially connected between the lower space and the cold water intake port, and a cold water side connection valve for supplying water from the lower space supplied through the cold water intake line to the hot water intake line during sterilization circulation. Provided;
A hot water intake line and a hot water intake valve are sequentially connected between the second storage tank and the hot water intake port, so that water passing through the cold water side connection valve is supplied to the second storage tank via the hot water intake line during sterilization circulation. Water treatment apparatus characterized in that the hot water side connection valve is provided.

The method of claim 2,
One intake port for supplying the cold water in the lower space and the hot water of the second storage tank to the user through the cold water intake valve and hot water intake valve, respectively;
On the cold water intake line is provided with a cold water side connection valve for supplying water in the lower space in the direction of any one of the intake port and hot water intake line during the sterilization circulation;
The hot water intake line is provided with a hot water side connection valve for supplying water supplied through the cold water intake line in one of the inlet and the hot water intake line during sterilization circulation.

The method according to claim 12 or 13,
The cold water side connection valve and the hot water side connection valve are connected by a second connection line;
The sterilization module and the circulation pump is provided on the second connection line.

The method according to claim 12 or 13,
The cold water side connection valve and the hot water side connection valve are connected by a second connection line;
A wastewater drainage line for discharging wastewater not filtered by the reverse osmosis membrane filter to the outside, and is connected between the wastewater drainage line and the second connection line but crosses the second connection line at a point close to the cold water side connection valve. A third connection line connecting the second connection line and the wastewater drainage line, the drain connection line intersecting the second connection line at a point close to the hot water side connection valve; On the wastewater drainage line is a water treatment device, characterized in that the wastewater regulator for limiting the discharge of wastewater discharged to the outside.

The method of claim 15,
And a third connection line shut-off valve on the third connection line, the third connection line shut-off valve being turned off during sterilization circulation and turned on during drainage and wastewater inflow.

The method of claim 15,
At the point where the second connection line and the drain connection line intersect, a flow path switching valve is provided for switching the flow direction of water flowing through the second connection line to any one of the drain connection line and the hot water intake line. Water treatment equipment.

The method of claim 15,
The water treatment apparatus, characterized in that on the drain connection line is provided with a check valve to flow water only in the direction of the wastewater drainage line.

The method according to claim 12 or 13,
Wastewater drainage line for discharging the wastewater not filtered by the reverse osmosis membrane filter to the outside is provided, the lower portion of the second storage tank and the The wastewater drainage line is connected by a second storage tank connection line, and a first connection line is provided between the second storage tank connection line and the first storage tank. The second storage tank connection line is provided with a second storage tank shutoff valve which is turned off during sterilization circulation so that water discharged from the second storage tank flows into the first storage tank through the first connection line. Water treatment apparatus, characterized in that.

The method of claim 2,
A drain line for branching on the circulation passage to drain the outside, a first wastewater line connecting between the wastewater discharge port of the reverse osmosis membrane filter and the circulation passage, branched on the first wastewater line and connected to the drainage line The second wastewater line is provided on the second wastewater line, characterized in that the second wastewater line shutoff valve is provided to block the flow of wastewater to the second wastewater line when the wastewater is supplied to the first storage tank. Water treatment equipment.

The method of claim 2,
A drain line for branching on the circulation passage to drain the outside, a first wastewater line connecting the wastewater discharge port of the reverse osmosis membrane filter and the circulation passage, for blocking the supply of purified water filtered by the filter unit Water treatment device, characterized in that the purified water line shutoff valve.

a) mixing the water of the first storage tank and the second storage tank stored at different temperatures and draining them to the outside;
b) supplying the wastewater discharged from the reverse osmosis membrane filter of the filter part to a circulation passage connected to the first storage tank and the second storage tank and filling the first storage tank and the second storage tank;
c) generating a sterilizing water in a sterilizing module while circulating the wastewater of the first storage tank and the second storage tank by operating a circulation pump;
d) draining the sterilizing water in the first storage tank and the second storage tank to the outside;
Water treatment method comprising a.

The method of claim 22,
The water treatment method, characterized in that the water is supplied to the first storage tank from the filter unit when draining the water of the first storage tank and the second storage tank to the outside in step a).

The method of claim 22,
Water treatment method, characterized in that for operating the circulation pump in step a) and d) to drain.

The method of claim 22,
The rinsing process of the first storage tank and the second storage tank is performed by the rinsing water after step d), and the rinsing water comprises wastewater discharged from the reverse osmosis membrane filter.

The method of claim 22,
After the step d), the rinsing process of the first storage tank and the second storage tank is performed by the rinsing water, and the rinsing process is performed while circulating the rinsing water in the first storage tank, the second storage tank, and the circulation passage. Water treatment method characterized in that made.