KR20100109157A - Water purifier capable of reducing water consumption - Google Patents

Water purifier capable of reducing water consumption Download PDF

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Publication number
KR20100109157A
KR20100109157A KR1020090027611A KR20090027611A KR20100109157A KR 20100109157 A KR20100109157 A KR 20100109157A KR 1020090027611 A KR1020090027611 A KR 1020090027611A KR 20090027611 A KR20090027611 A KR 20090027611A KR 20100109157 A KR20100109157 A KR 20100109157A
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KR
South Korea
Prior art keywords
water
supply tank
water supply
filter unit
filter
Prior art date
Application number
KR1020090027611A
Other languages
Korean (ko)
Inventor
노용연
이현희
Original Assignee
웅진코웨이주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 웅진코웨이주식회사 filed Critical 웅진코웨이주식회사
Priority to KR1020090027611A priority Critical patent/KR20100109157A/en
Publication of KR20100109157A publication Critical patent/KR20100109157A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025Reverse osmosis; Hyperfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis

Abstract

PURPOSE: A water-cleaner capable of domestic water recycle purifying a reverse osmosis membrane filter is provided to reduce the waste of the domestic water by using the domestic water which is not filtered in the reverse osmosis membrane filter being filtered again and using the waste of the domestic. CONSTITUTION: A water-cleaner capable of domestic water recycle includes a water supply tank(130) storing the raw water and a filter unit(110) including a reverse osmosis membrane filter. A water reservoir(120) stores the fixed number filtered in the filter. A return duct(150) supplies the domestic water which is not filtered in the reverse osmosis membrane filter to the water supply tank. The controller secludes the water saved in the water supply tank.

Description

Water Purifier Capable of Reducing Water Consumption
The present invention relates to a water purifier including a reverse osmosis membrane filter, and more particularly, to a water purifier capable of preventing waste of living water by using purified water again, which is not filtered in the reverse osmosis membrane filter.
Recently, as environmental pollution, especially water pollution, becomes a social problem, the use of water purifiers to remove impurities by filtering water physically or chemically is increasing.
Of these water purifiers, the reverse osmosis water purifier performs artificial water purification by applying an artificial pressure to the concentrated concentration so that water, which is a solvent in a high concentration solution, passes through the osmotic membrane and moves toward the lower concentration.
Figure 1 shows an example of such a reverse osmosis water purifier.
Referring to Figure 1, the conventional reverse osmosis water purifier (1) is a sediment filter (11) to receive raw water from the tap water and remove dust, debris, various suspended matter through a fine filter of about 5 microns, Free carbon filter (12) that removes harmful chemicals such as carcinogens (THM), synthetic detergents, insecticides, and chlorine by using adsorption of activated carbon, and heavy metals such as lead and arsenic Of course, sodium, various pathogens, etc., and concentrated living water is connected to the reverse osmosis membrane filter 13 and the reverse osmosis membrane filter 13 and the connection pipe 13b discharged through the drain pipe 13a. It is provided with a filter portion 10 consisting of a post carbon filter 14 for removing the unpleasant taste and smell, pigments, and the like contained in the water passed through the reverse osmosis membrane filter (13). In addition, the pump 15 is mounted at the front end of the reverse osmosis membrane filter 13 to supply pressure to the water flowing into the reverse osmosis membrane filter 13.
As such, the water filtered by the filter unit 10 is stored in the water tank 20 to be used by the user.
However, since the conventional reverse osmosis type water purifier 1 has a structure in which the living water that is not filtered by the reverse osmosis membrane filter 13 is left as it is, there is a problem in that waste of water is severe.
In addition, since the conventional reverse osmosis type water purifier 1 is directly connected to a water tap and the like, there is a problem that a separate plumbing work for connecting to the tap water is required for use in an office or a factory. In particular, when it is not possible to install a separate pipe due to the appearance of the office, it is not possible to use a water purifier of the type directly connected to the tap water.
The present invention is to solve at least some of the conventional problems as described above, by providing a water purifier capable of recycling domestic water, less waste of living water by using again filtered water for use in the reverse osmosis membrane filter For the purpose of
In addition, the present invention as one aspect, by improving the life of the filter unit by improving the life of the filter unit by no longer being supplied to the filter unit concentrated living water is filtered several times in the reverse osmosis membrane filter, water for daily use, stable water supply It is an object to provide a water purifier that can be recycled.
In another aspect, the present invention provides a water purifier capable of recycling water for living, which can be used in a space separated from the tap water by separating the water supply tank from the filter part and receiving raw water from an external tap water installed separately from the water purifier. It aims to do it.
The present invention to achieve the above object, the water supply tank for storing the raw water; A filter unit including a reverse osmosis membrane filter to receive and filter the water stored in the water supply tank; A purified water tank storing purified water filtered by the filter unit; A recovery pipe for supplying the living water not filtered by the reverse osmosis membrane filter to the water supply tank; And a control unit which blocks the water stored in the water supply tank from being supplied to the filter unit when the water level inside the water supply tank is lower than the discharge water level, which is a predetermined level. It provides a water purifier capable of recycling water for living.
Preferably, the discharge water level may be set in the range of 20 to 30% of the water tank full water level.
Also preferably, the water purifier according to one aspect of the invention TDS sensor for measuring the TDS (Total Dissolved Solid, total dissolved solids) of the water contained in the water supply tank; The control unit may further include a water level stored in the water supply tank when the water level inside the water supply tank is lower than a predetermined water level or the value detected by the TDS sensor is a predetermined value or more. It can be configured to block the supply.
More preferably, the water purifier according to an aspect of the present invention may further include a pump for supplying the water stored in the water supply tank to the filter unit, wherein the control unit is stored in the water supply tank by stopping the driving of the pump It may be configured to block water from being supplied to the filter part.
Also preferably, the control unit may be configured to open the drain valve connected to the drain pipe of the water supply tank to block the water stored in the water supply tank is supplied to the filter unit.
Preferably, the water supply tank may be connected to a pipe and a connector connected to the filter unit to be detachable from the filter unit.
According to the present invention as described above, it is possible to reduce the waste of the living water by using again filtered water for use in the reverse osmosis membrane filter.
In addition, according to an aspect of the present invention by blocking the supply of water to the filter unit when the water level of the water supply tank becomes the discharge water level so that the living water concentrated more than a certain degree while being filtered several times in the reverse osmosis membrane filter In addition to improving the life of the filter unit, there is an effect that a stable supply of purified water of high quality is possible.
In addition, according to an aspect of the present invention, by providing a TDS sensor for measuring the TDS of the water contained in the water supply tank, when the amount of dissolved solids is a certain level or more, the water is no longer supplied to the filter unit by extending the life of the filter unit Not only can it be improved, but it is possible to obtain a TDS low water supply.
In addition, according to an aspect of the present invention, by configuring the water supply tank to be detachable from the filter unit, it is possible to receive the raw water from the external tap water installed separately from the water purifier, so that the use of the water purifier even in a place separated from the tap water This has the effect of being possible.
Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
2 is a schematic diagram of a water purifier capable of recycling living water according to an embodiment of the present invention, and FIG. 3 is a schematic diagram of a water purifier capable of recycling living water according to another embodiment of the present invention.
As shown in FIG. 2, the water purifier 100 capable of recycling living water according to an embodiment of the present invention includes a filter unit 110, a water purification tank 120, a water supply tank 130, a pump 140, and the like. It can be configured to include a connecting pipe.
The filter unit 110 is configured to include a reverse osmosis membrane filter 113 and receives the water contained in the water supply tank 130 is filtered to generate purified water, and supplies the purified water to the purified water tank 120 .
As shown in FIG. 2, the filter unit 110 receives water from the water supply tank 130 and removes dust, debris, and various suspended substances through a fine filter of about 5 microns. (111a), a free carbon filter (111b) that removes harmful chemicals such as carcinogens (THM), synthetic detergents, insecticides, and chlorine by using adsorption of activated carbon, and a reverse osmosis membrane of 0.0001 micron And heavy metals such as arsenic, as well as sodium, and various pathogens, and the concentrated living water is reverse osmosis membrane filter 113 discharged through the drain portion 113a, and the reverse osmosis membrane filter 113 and the connection pipe ( 113b) may be configured as a post carbon filter 114 to remove the unpleasant taste and smell, pigments, etc. contained in the water passed through the reverse osmosis membrane filter 113. However, the type and number of filters provided before and after the reverse osmosis membrane filter 113 are not limited thereto. For example, as illustrated in FIGS. 2 and 3, the sediment filter 111a and the precarbon filter 111b may be configured as one composite filter 111, and one or more filters may be removed or added. It is also possible.
In addition, the purified water tank 120 receives the water filtered by the filter unit 110 through the purified water inlet pipe 115 and stores it therein, and the high water level sensor 126 and the low water level sensor 127 for measuring the internal water level. Etc. water level detection means may be provided. The purified water contained in the purified water tank 120 is provided to the user through the purified water supply pipe 121. The water purification tank 120 may include a hot water tank and / or a cold water tank according to the specification of the water purifier.
In addition, the water supply tank 130 may include a water supply pipe 131 and a water supply valve 131a provided therein so as to receive the raw water from the tap water, and to drain the water contained therein to the outside such as sewerage. 132 and a drain valve 132a provided therein.
And, the water supply tank 130 is connected through the filter unit 110 and the inlet pipe 142 so that one side to supply the raw water for filtration to the filter unit 110, the other side in the reverse osmosis membrane filter 113 It is connected to the recovery pipe 150 to receive the living water discharged through the drain portion 113a without being filtered. Therefore, when the water level of the purified water tank 120 is lowered and the need for replenishment of purified water, the raw water for filtration stored in the water supply tank 130 is supplied to the front of the filter unit 110 to perform filtration, and reverse osmosis membrane filter. Water filtered through the 113 and the like is stored in the purified water tank 120, but the living water not filtered in the reverse osmosis membrane filter 113 is recovered back to the water supply tank 130 through the recovery pipe 150. After that, when the purified water needs to be replenished in the purified water tank 120, the water stored in the water supply tank 130 is supplied again to the front end of the filter unit 110 to repeat the above-described process.
As such, some of the water supplied from the water supply tank 130 to the filter unit 110 is filtered and stored in the purified water tank 120, and the rest is repeated to recover the water supply tank 130, the water supply tank The water level of the 130 is gradually lowered and the water contained in the water supply tank 130 is concentrated to increase the TDS (Total Dissolved Solid, total dissolved solids).
When the concentrated water is continuously supplied to the filter unit 110, the clogging phenomenon of each filter provided in the filter unit 110, in particular, the reverse osmosis membrane filter 113 may increase, which may shorten the life of the filter. In addition, since there is a limit in the filtration performance of the filter unit 110, the TDS of the filtered water is also increased, making it difficult to secure the quality of the desired purified water.
In order to prevent this problem, the water purifier 100 according to an aspect of the present invention is supplied to the filter unit 110 from the water supply tank 130 when the water level of the water supply tank 130 is lower than a predetermined discharge water level. It is configured to include a control unit (not shown) so as not to be.
As such, when the water level inside the water supply tank 130 reaches a certain level, the water supply to the filter unit 110 is blocked from the water supply tank 130 to extend the life of the filter provided in the filter unit 110. Not only can the TDS of the water accommodated in the purified water tank 120 is prevented from increasing, so that the purified water quality can be secured.
At this time, the discharge water level is preferably set in the range between 20 to 30% of the full water level. If the discharge water level is smaller than 20% of the full water level, the concentration of unfiltered living water in the reverse osmosis membrane filter 113 is increased, that is, the TDS is increased to continue the filtration process through the filter unit 110. The blockage may increase and the TDS of the water flowing into the purified water tank 120 increases, thereby degrading the quality of the water. On the contrary, if the discharge water level is greater than 30% of the full water level, the amount of unnecessary waste water is increased.
The discharge water level may be detected by the discharge water level sensor 137 provided in the water supply tank 130, and the high water level of the water supply tank 130 may be detected by the high water level sensor 136.
Meanwhile, the water purifier 100 capable of recycling living water according to an embodiment of the present invention may further include a TDS sensor 135 that measures a TDS of water contained in the water supply tank 130. At this time, the control unit is not shown when the value detected by the TDS sensor 135 is a predetermined value or more, even if the water level of the water supply tank 130 is higher than the discharge water level through the water supply tank 130 ( By preventing the water stored in 130 from being supplied to the filter unit 110, the service life may be reduced due to the clogging of the filter, but the quality of the water in the purified water tank 120 may be prevented from being lowered.
For example, if the raw water itself contains a large amount of hard material and the TDS of the raw water is high, even before the water level of the water supply tank 130 reaches the discharge water level, the TDS of the water contained in the water supply tank 130 may be higher than the reference value. However, when provided with the TDS sensor 135 as in one embodiment of the present invention by blocking the water stored in the water supply tank 130 is supplied to the filter unit 110 of the water contained in the purified water tank 120 It is possible to prevent the TDS from rising in advance. In particular, by installing the TDS sensor 135 in the water supply tank 130, it is possible to prevent the TDS rise of the water accommodated in the purified water tank 120 in advance, so that the quality of water than when installing the TDS sensor in the purified water tank 120 It can be kept stable.
On the other hand, the water purifier 100 capable of recycling living water according to an embodiment of the present invention is a pump installed in the inlet pipe 142 to pressurize the water stored in the water supply tank 130 to supply to the filter unit 110 140 may further include. In this case, the controller (not shown) may be configured to block the water stored in the water supply tank 130 is supplied to the filter unit 110 by stopping the driving of the pump 140.
In addition, the control unit is the water level stored in the water supply tank 130 when the water level inside the water supply tank 130 is lower than a predetermined level or the value detected by the TDS sensor 135 is a predetermined value or more In order to block the supply to the filter unit 110, the drain valve 132a connected to the drain pipe 132 of the feed tank 130 may be opened to discharge the water contained in the feed tank 130 to the outside. At this time, the drain pipe 132 may be configured to be connected to the sewer pipe, etc., but to be connected to a separate drain tank (not shown) for storing the drained living water for separate use such as washing, cleaning, or the like. It can also be configured for use.
As shown in FIG. 3, the water purifier 100 capable of recycling living water according to another embodiment of the present invention may be configured to separate the water supply tank 130 from the filter unit 110.
The water purifier 100 shown in FIG. 3 has the same or similar configuration as the water purifier shown in FIG. 2 except that the water supply tank 130 is detachably configured, and thus the same or similar parts to avoid unnecessary duplication. The description of the same will be omitted, the same reference numerals for the same or similar configuration, and only the differences will be described.
The water purifier 100 shown in FIG. 3 includes an inlet pipe 142 or a recovery pipe 150 connected to the filter unit 110 so that the water supply tank 130 can be separated from the filter unit 110. And the connector 138a, 138b. These connectors 138a and 138b may have a conventional pipe connection structure, and thus detailed description thereof will be omitted.
In addition, as shown in FIG. 3, the water purifier 100 separates the water supply tank 130 and moves to the water tap, and so on so that water is connected to the water supply pipe 231 and the water supply valve 231a connected to the tap water. The connector 138c may be provided. At this time, the water supply tank 130 may be provided with a separate water supply port (131b) in the upper portion to receive the raw water.
3, the water purifier 100 is water remaining in the water supply tank 130 after the water stored in the water supply tank 130 is blocked by the control unit from being supplied to the filter unit 110. A drain connector 138d may be provided to be connected to a drain pipe 232 such as a sewage pipe to drain the water.
In this way, by configuring the water supply tank 130 to be detachable from the filter unit 110, it is possible to receive the raw water from the external tap water installed separately from the water purifier 100, thereby purifying the water purifier even in a place separated from the tap water Can be used.
While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.
1 is a schematic diagram showing a water purifier of a general reverse osmosis method.
Figure 2 is a schematic diagram of a water purifier capable of recycling household water according to an embodiment of the present invention.
Figure 3 is a schematic diagram of a water purifier capable of recycling household water according to another embodiment of the present invention.
Description of the Related Art [0002]
100 ... Water purifier 110 ... Filter part
113 ... reverse osmosis membrane filter 120 ... water purification tank
126 ... low water level sensor 127 ... low water level sensor
130 ... water tank 131 ... water pipe
131a ... water supply valve 131b ... water inlet
132 ... drain pipe 132a ... drain valve
135 ... TDS sensor 136 ... water level sensor
137 ... Drain level sensor 138a, 138b, 138c, 138d ... End connections
140 ... pump 142 ... inlet pipe
150 ... Recovery tube

Claims (6)

  1. A water supply tank 130 storing raw water;
    A filter unit 110 including a reverse osmosis membrane filter 113 to receive and filter the water stored in the water supply tank 130;
    Water purification tank 120 for storing the purified water filtered by the filter unit 110;
    A recovery pipe 150 for supplying the living water not filtered by the reverse osmosis membrane filter 113 to the water supply tank 130; And
    A control unit which blocks the water stored in the water supply tank 130 from being supplied to the filter unit 110 when the water level inside the water supply tank 130 is lower than the discharge water level, which is a predetermined level;
    Water purifier capable of recycling household water, including.
  2. The method of claim 1,
    The discharge water level is a water purifier capable of recycling living water, characterized in that the water tank 130 is set in the range of 20 to 30% of the full water level.
  3. The method of claim 1,
    A TDS sensor 135 for measuring TDS (Total Dissolved Solid) of water contained in the water supply tank 130; Additionally contains
    The control unit is the water stored in the water supply tank 130 when the water level inside the water supply tank 130 is lower than a predetermined level or the value detected by the TDS sensor 135 is a predetermined value or more, the filter unit Water purifier capable of recycling household water, characterized in that the supply to the (110) cut off.
  4. The method according to any one of claims 1 to 3,
    Further comprising; a pump 140 for supplying the water stored in the water supply tank 130 to the filter unit 110,
    The control unit stops the driving of the pump 140, water purifier capable of recycling water for use, characterized in that the water stored in the water supply tank 130 is blocked from being supplied to the filter unit (110).
  5. The method according to any one of claims 1 to 3,
    The control unit opens the drain valve 132a connected to the drain pipe 132 of the water supply tank 130 to block the water stored in the water supply tank 130 from being supplied to the filter unit 110. Water purifier that can recycle water for living.
  6. The method according to any one of claims 1 to 3,
    The water supply tank 130 is a water purifier capable of recycling water for life, characterized in that connected to the pipe and the connection (138a, 138b) connected to the filter unit 110 to be separated from the filter unit (110).
KR1020090027611A 2009-03-31 2009-03-31 Water purifier capable of reducing water consumption KR20100109157A (en)

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Application Number Priority Date Filing Date Title
KR1020090027611A KR20100109157A (en) 2009-03-31 2009-03-31 Water purifier capable of reducing water consumption

Related Child Applications (1)

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KR1020150182926A Division KR20160005319A (en) 2015-12-21 2015-12-21 Water Purifier Capable of Reducing Water Consumption

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130077383A (en) * 2011-12-29 2013-07-09 코웨이 주식회사 Water purifier
US20140260370A1 (en) * 2013-03-13 2014-09-18 Patrick Henry Carew Controlling evaporative cooling tower chemistry

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130077383A (en) * 2011-12-29 2013-07-09 코웨이 주식회사 Water purifier
US20140260370A1 (en) * 2013-03-13 2014-09-18 Patrick Henry Carew Controlling evaporative cooling tower chemistry
US10151536B2 (en) * 2013-03-13 2018-12-11 Patrick Henry Carew Controlling evaporative cooling tower chemistry

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