KR102640032B1 - Water treatment apparatus - Google Patents

Abstract

A water treatment device is started.
A water treatment device according to an embodiment of the present invention includes a filtration unit including a reverse osmosis filter divided into a non-filtration side and a filtration side by a reverse osmosis membrane; and a discharge unit that discharges the water filtered in the filter unit to the outside and supplies it to the user. Includes, a portion of the water flowing into the non-filtration side is filtered by the reverse osmosis membrane and flows to the discharge unit through the filtration side, and the remaining water that is not filtered by the reverse osmosis membrane, which is residential water, is discharged from the non-filtration side, It may be configured to prevent foreign substances that have not been filtered by the reverse osmosis membrane from accumulating in a portion of the reverse osmosis membrane.

Description

Water treatment equipment {WATER TREATMENT APPARATUS}

The present invention relates to a water treatment device that processes water, such as by filtering it.

A water treatment device is a device that processes water and supplies it to users.

Water treatment devices filter water and supply it to users, electrolyze water to make alkaline water and supply it to users, or dissolve carbon dioxide in water to make carbonated water and supply it to users.

When water is filtered and supplied to users, the water treatment device includes a water purification filter to filter the water.

Among these water purification filters, there is a reverse osmosis filter equipped with a reverse osmosis membrane. A reverse osmosis filter is divided into a non-filtration side and a filtration side by a reverse osmosis membrane. Water flows into one side of the non-filtration side of the reverse osmosis filter, and a portion of the introduced water is filtered while passing through the reverse osmosis membrane and flows to the filtering side. Additionally, domestic water that is not filtered by the reverse osmosis membrane is discharged to the other side of the non-filtration side of the reverse osmosis filter.

Foreign substances such as scale that are not filtered by the reverse osmosis filter accumulate in the reverse osmosis membrane. In a conventional water treatment device, water continues to flow into one side of the non-filtration side of the reverse osmosis filter, and household water continues to discharge from the other side. Therefore, foreign substances are concentrated and accumulated in the portion of the reverse osmosis membrane adjacent to the other side of the reverse osmosis membrane filter, from which residential water containing relatively more foreign substances is discharged. In other words, the amount of foreign substances accumulated in the reverse osmosis membrane increases as you move from one side of the non-filtration side of the reverse osmosis filter to the other side.

Accordingly, foreign substances accumulate in the portion of the reverse osmosis membrane adjacent to the non-filtration side of the reverse osmosis membrane filter to the extent that the reverse osmosis filter must be replaced relatively quickly. Therefore, the reverse osmosis filter as a whole had to be replaced even though foreign substances had not accumulated to the extent that the reverse osmosis filter needed to be replaced.

The present invention has been made in recognition of at least one of the above-mentioned needs or problems arising in the prior art.

One aspect of the purpose of the present invention is to prevent foreign substances from accumulating in a portion of the reverse osmosis membrane of the reverse osmosis filter.

Another aspect of the object of the present invention is to extend the life of the reverse osmosis filter.

A water treatment device related to one embodiment for realizing at least one of the above tasks may include the following features.

A water treatment device according to an embodiment of the present invention includes a filtration unit including a reverse osmosis filter divided into a non-filtration side and a filtration side by a reverse osmosis membrane; and a discharge unit that allows the water filtered by the filter unit to be discharged to the outside and supplied to the user. Includes, a portion of the water flowing into the non-filtration side is filtered by the reverse osmosis membrane and flows to the discharge unit through the filtration side, and the remaining water that is not filtered by the reverse osmosis membrane, which is residential water, is discharged from the non-filtration side, It may be configured to prevent foreign substances that have not been filtered by the reverse osmosis membrane from accumulating in a portion of the reverse osmosis membrane.

In this case, when water is filtered in the filtration unit, water can be alternately introduced to one side and the other side of the non-filtration side, and the domestic water can be alternately discharged to the other side and one side of the non-filtration side.

Additionally, it is possible to allow water to flow in alternately at predetermined intervals and for domestic water to be discharged alternately at predetermined intervals.

And, an alternating input and output unit including a first input and output line and a second input and output line respectively connected to one side and the other side of the non-filtration side; and a control unit that allows water to flow into the non-filtration side by alternately using the first input/output line and the second input/output line when water is filtered in the filtering unit. It may further include.

Additionally, the alternating input/output unit may further include a first branch line connected to the first input/output line and a second branch line connected to the second input/output line and the first branch line.

And, when water flows into the non-filtration side through the first input/output line, the control unit causes the domestic water to be discharged through a portion of the second input/output line, a second branch line, and a portion of the first branch line, and When water flows into the non-filtration side through the second input/output line, the domestic water can be discharged through a portion of the first input/output line and the first branch line.

In addition, the alternating input/output unit may further include a flow path switching valve to which the first and second input/output lines are connected, and first and second opening/closing valves provided in the first and second branch lines, respectively.

Additionally, the control unit may alternately switch the flow path switching valve to the first input/output line or the second input/output line.

In addition, when the flow path switching valve is switched to the first input/output line, the control unit closes the first opening/closing valve and opens the second opening/closing valve, and when the flow path switching valve is switched to the second input/output line, the control unit opens/closes the second opening/closing valve. The valve can be closed and the first on/off valve can be opened.

Additionally, the first branch line may be provided with a domestic water valve that allows the domestic water to be discharged while maintaining a predetermined filtration pressure on the non-filtration side.

Additionally, the second branch line may be connected to a portion of the first branch line in front of the domestic water valve.

As described above, according to the embodiment of the present invention, it is possible to prevent foreign substances from accumulating in a portion of the reverse osmosis membrane of the reverse osmosis filter.

In addition, according to an embodiment of the present invention, water flows alternately into one side and the other side of the non-filtration side of the reverse osmosis filter, and household water that has not been filtered by the reverse osmosis membrane of the reverse osmosis filter flows into the other side of the non-filtration side of the reverse osmosis filter. It can be discharged alternately from one side to the other.

And also, according to an embodiment of the present invention, the lifespan of the reverse osmosis filter can be extended.

1 is a diagram showing one embodiment of a water treatment device according to the present invention.
Figures 2 and 3 are diagrams showing the operation of an embodiment of the water treatment device according to the present invention.

In order to facilitate understanding of the features of the present invention as described above, the water treatment device related to the embodiment of the present invention will be described in more detail below.

The embodiments described below will be explained based on the embodiments most suitable for understanding the technical features of the present invention, and the technical features of the present invention are not limited by the described embodiments. This is to illustrate that the present invention can be implemented as in the embodiments. Accordingly, the present invention can be implemented in various modifications within the technical scope of the present invention through the embodiments described below, and these modified embodiments will be considered to fall within the technical scope of the present invention. In addition, in order to facilitate understanding of the embodiments described below, in the symbols shown in the accompanying drawings, related components among components that perform the same function in each embodiment are indicated by numbers on the same or extended lines.

Hereinafter, an embodiment of a water treatment device according to the present invention will be described with reference to FIGS. 1 to 3.

Figure 1 is a diagram showing an embodiment of a water treatment device according to the present invention, and Figures 2 and 3 are diagrams showing the operation of an embodiment of the water treatment device according to the present invention.

One embodiment of the water treatment device 100 according to the present invention may include a filtration unit 200 and a discharge unit 300.

The filtration unit 200 can filter water supplied from a water supply source (not shown), such as a raw water supply source such as a tap. For this purpose, the filtration unit 200 may include a reverse osmosis filter 210.

As shown in FIG. 1, the reverse osmosis filter 210 may be divided into a non-filtration side 212 and a filtration side 213 by a reverse osmosis membrane 211. For example, by providing the reverse osmosis membrane 211 inside the reverse osmosis filter 210 in a rolled-up state, the reverse osmosis filter 210 is divided into a non-filtration side 212 and a filtration side 213 by the reverse osmosis membrane 211. can be partitioned.

However, the configuration in which the reverse osmosis filter 210 is divided into a non-filtration side 212 and a filtration side 213 by the reverse osmosis membrane 211 is not particularly limited, and any known configuration is possible.

An alternating input/output unit 400, which will be described later, may be connected to the non-filtration side 212. Additionally, a water discharge connection line (LCO) may be connected to the filtration side 213.

As shown in Figures 2 and 3, water may flow into the non-filtration side 212 of the reverse osmosis filter 210 through the alternating input and output portions 400. Additionally, some of the water flowing into the non-filtration side 212 may be filtered while passing through the reverse osmosis membrane 211 and then flow out through the filtration side 213 to the water discharge connection line (LCO). In addition, domestic water, which is the remaining water that has not been filtered by the reverse osmosis membrane 211, can be discharged to the outside from the non-filtration side 212 through the alternating inlet/outlet portion 400.

In order to filter water, the filtration unit 200 may further include a pre-treatment filter 220 and a post-treatment filter 230 as shown in FIG. 1 in addition to the reverse osmosis filter 210 described above.

However, the water purification filter additionally included in the filtration unit 200 for filtration of water in addition to the reverse osmosis filter 210 is not particularly limited, and any known water purification filter may be included.

As shown in FIG. 1, the pre-treatment filter 220 may be connected to a water supply source (not shown), such as a raw water supply source such as a tap, by a supply line (LSW). Additionally, the pre-treatment filter 220 may be connected to the alternating input/output unit 400 through a connection line LC. Additionally, a supply valve (VW) may be provided in the connection line (LC).

Therefore, when the supply valve (VW) is opened, as shown in Figures 2 and 3, the water from the water supply source is filtered while passing through the pre-treatment filter 220 and flows back through the connection line LC and the alternating input/output unit 400. It may flow into the non-filtration side 212 of the osmotic pressure filter 210.

The post-treatment filter 230 may be connected to the water outlet connection line (LCO). Additionally, the post-treatment filter 230 may be connected to the discharge unit 300 through a discharge line (LWD).

Accordingly, the water filtered from the reverse osmosis filter 210 flowing out through the water outlet connection line LC0 may be filtered while passing through the post-treatment filter 230, as shown in FIGS. 2 and 3. In addition, the water filtered in the post-treatment filter 230 can be discharged to the outside through the discharge line (LWD) and the discharge unit 300 and supplied to the user.

The discharge unit 300 may allow the water filtered in the filtration unit 200 to be discharged to the outside and supplied to the user. The discharge unit 300 may include a discharge member 310 and a discharge valve 320 as shown in FIG. 1 .

The discharge member 310 may be connected to a discharge line (LWD) connected to the above-described water discharge connection line (LCO) connected to the filtration side 213 of the reverse osmosis filter 210. As shown in FIG. 1, the discharge line (LWD) may be connected to the water outlet connection line (LCO) by the above-described post-treatment filter 230. However, the configuration in which the discharge line (LWD) is connected to the water outlet connection line (LCO) is not particularly limited, and any known configuration is possible, such as, for example, the discharge line (LWD) is directly connected to the water outlet connection line (LCO).

The discharge valve 320 may be provided in the discharge line (LWD). However, the discharge valve 320 may be provided on the discharge member 310. For example, the discharge valve 320 may be integrated with the discharge member 310.

When the discharge valve 320 is opened, as shown in Figures 2 and 3, the water filtered in the filter unit 200 flows through the discharge line (LWD) and is discharged to the outside through the discharge member 310 to be supplied to the user. It can be.

However, the configuration of the discharge unit 300 is not particularly limited, and any known configuration is possible as long as the water filtered in the filter 200 can be discharged to the outside and supplied to the user.

Meanwhile, in one embodiment of the water treatment device 100 according to the present invention, foreign substances such as scale, which are not filtered by the reverse osmosis membrane 211 of the reverse osmosis filter 210, are concentrated and accumulated in a part of the reverse osmosis membrane 211. It can be configured to prevent.

As a result, in one embodiment of the water treatment device 100 according to the present invention, foreign substances such as scale can be accumulated generally uniformly throughout the reverse osmosis membrane 211. Therefore, the time for foreign substances to accumulate in the reverse osmosis membrane 211 may be extended to the point where the reverse osmosis filter 210 must be replaced due to difficulty in filtering water. Accordingly, the lifespan of the reverse osmosis filter 210 can be extended.

To this end, in one embodiment of the water treatment device 100 according to the present invention, when water is filtered in the filtration unit 200 as shown in Figures 2 and 3, the water is not filtered by the reverse osmosis filter 210. It is possible to alternately inflow into one side and the other side of the side 212 and discharge the domestic water alternately from the other side and one side of the non-filtration side 212.

Accordingly, when water flows into one side of the non-filtration side 212 of the reverse osmosis filter 210, household water can be discharged to the other side of the non-filtration side 212 of the reverse osmosis filter 210. In this case, foreign substances may accumulate in the portion of the reverse osmosis membrane 211 adjacent to the other side of the non-filtration side 212 of the reverse osmosis filter 210 where domestic water is discharged.

Additionally, when water flows into the other side of the non-filtration side 212 of the reverse osmosis filter 210, household water may be discharged to one side of the non-filtration side 212 of the reverse osmosis filter 210. In this case, foreign substances may accumulate in a portion of the reverse osmosis membrane 211 adjacent to one side of the non-filtration side 212 of the reverse osmosis filter 210 where domestic water is discharged.

Accordingly, foreign substances such as scale can be accumulated generally uniformly throughout the reverse osmosis membrane 211 rather than concentrated in a portion of the reverse osmosis membrane 211 of the reverse osmosis filter 210.

In one embodiment of the water treatment device 100 according to the present invention, water alternately flows into one side and the other side of the non-filtration side 212 of the reverse osmosis filter 210 at predetermined intervals, and household water alternately enters the reverse osmosis filter at predetermined intervals ( It can be discharged to the other side and one side of the non-filtration side 212 of 210). For example, in a cycle of 30 seconds, water alternately flows into one side and the other side of the non-filtration side 212 of the reverse osmosis filter 210, and household water flows into the other side and one side of the non-filtration side 212 of the reverse osmosis filter 210. It can be discharged alternately.

However, the above-described alternating cycle is not particularly limited, and any cycle is possible as long as it can prevent foreign substances from accumulating in a portion of the reverse osmosis membrane 211 of the reverse osmosis filter 210.

One embodiment of the water treatment device 100 according to the present invention may further include an alternating input/output unit 400 and a control unit 500.

The alternating input/output unit 400 may include a first input/output line 410 and a second input/output line 420 respectively connected to one side and the other side of the non-filtration side 212 of the reverse osmosis filter 210.

In addition, the alternating input/output unit 400 includes a first branch line 430 connected to the first input/output line 410, a second input/output line 420, and a second branch line connected to the first branch line 430 ( 440) may further be included. The first branch line 430 may be provided with a domestic water valve (VLL) as shown in FIG. 1. The residential water valve (VLL) allows residential water to be discharged while maintaining a predetermined filtration pressure on the non-filtration side 212 of the reverse osmosis filter 210. In this case, the second branch line 440 may be connected to a portion of the first branch line 430 in front of the domestic water valve (VLL).

The alternating input/output unit 400 further includes a flow path switching valve 450 to which the first and second input and output lines (410,420) are connected, and first and second opening/closing valves (460,470) provided in the first and second branch lines (430,440), respectively. It can be included.

However, the configuration of the alternating input and output unit 400 is not particularly limited, and when water is filtered in the filtration unit 200, the water is alternately transferred to one side and the other side of the non-filtration side 212 of the reverse osmosis filter 210. Any known configuration is possible as long as it allows domestic water to flow in and be discharged alternately to the other side and one side of the non-filtration side (212).

When water is filtered in the filtration unit 200, the control unit 500 alternately uses the first input and output line 410 and the second input and output line 420 of the alternating input and output unit 400 to filter the reverse osmosis filter 210. Water can be allowed to flow into the non-filtration side 212 of .

To this end, the control unit 500 can alternately switch the flow path switching valve 450 of the alternating input/output unit 400 to the first input/output line 410 or the second input/output line 420. When the control unit 500 switches the flow path switching valve 450 to the first input/output line 410, water is unfiltered through the reverse osmosis filter 210 through the first input/output line 410, as shown in FIG. It may flow into side 212. Then, when the control unit 500 switches the flow path switching valve 450 to the second input/output line 420, water flows into the reverse osmosis filter 210 through the second input/output line 420, as shown in FIG. It may flow into the non-filtration side (212).

When water flows into the non-filtration side 212 of the reverse osmosis filter 210 through the first input/output line 410, the control unit 500 controls a portion of the second input/output line 420 and the second branch line 440. ) and can be discharged through part of the first branch line 430. In addition, when water flows into the non-filtration side 212 of the reverse osmosis filter 210 through the second input/output line 420, the control unit 500 controls a portion of the first input/output line 410 and the first branch line. It can be discharged through (430).

To this end, when the flow path switching valve 450 is switched to the first input/output line 410, the control unit 500 can close the first on/off valve 460 and open the second on/off valve 470. Accordingly, as shown in Figure 2, domestic water is supplied to the portion of the second input/output line 420 connected to the other side of the non-filtration side 212 of the reverse osmosis filter 210, the second branch line 440, and the second The branch line 440 is connected and can be discharged to the outside through the portion of the first branch line 430 equipped with a domestic water valve (VLL).

Additionally, when the flow path switching valve 450 is switched to the second input/output line 420, the control unit 500 can close the second on/off valve 470 and open the first on/off valve 460. Accordingly, as shown in Figure 3, household water is supplied to the outside through a portion of the first input/output line 410 connected to one side of the non-filtration side 212 of the reverse osmosis filter 210 and the first branch line 430. can be discharged as

For the above-described operation, the control unit 500 may be electrically connected to the flow path switching valve 450 and the first and second opening and closing valves 460 and 470, as shown in FIG. 1. Additionally, the control unit 500 may be electrically connected to the supply valve (VW) and the discharge valve 320.

As described above, when the water treatment device according to the present invention is used, it is possible to prevent foreign substances from accumulating in a portion of the reverse osmosis membrane of the reverse osmosis filter, and water is alternately distributed to one side of the non-filtration side and the other side of the reverse osmosis filter. Domestic water that flows in and is not filtered by the reverse osmosis membrane of the reverse osmosis filter can be discharged alternately to one side and the other non-filtration side of the reverse osmosis filter, and the lifespan of the reverse osmosis filter can be extended.

The water treatment device described above cannot be limited to the configuration of the above-described embodiments, and may be configured by selectively combining all or part of each embodiment so that various modifications can be made.

100: water treatment device 200: filtration unit
210: reverse osmosis filter 211: reverse osmosis membrane
212: non-filtration side 213: filtration side
220: Pre-processing filter 230: Post-processing filter
300: discharge part 310: discharge member
320: discharge valve 400: alternating input and output
410: 1st entry/exit line 420: 2nd entry/exit line
430: first branch line 440: second branch line
450: Flow path conversion valve 460: First opening/closing valve
470: Second opening/closing valve 500: Control unit
LSW: Supply line LC: Connection line
LCO: Water outlet connection line LWD: Discharge line
VW: Supply valve VLL: Domestic water valve

Claims (11)

A filtration unit including a reverse osmosis filter divided into a non-filtration side and a filtration side by a reverse osmosis membrane; and
a discharge unit that allows the water filtered in the filter unit to be discharged to the outside and supplied to the user; Including,
A portion of the water flowing into the non-filtration side is filtered by the reverse osmosis membrane and flows to the discharge portion through the filtration side, and the remaining water, which is water not filtered by the reverse osmosis membrane, which is residential water, is discharged from the non-filtration side,
It is configured to prevent foreign substances that have not been filtered by the reverse osmosis membrane from accumulating in a portion of the reverse osmosis membrane,
When water is filtered in the filtration unit, water flows alternately into one side and the other side of the non-filtration side, and the domestic water alternately discharges from the other side and one side of the non-filtration side. delete The water treatment device according to claim 1, wherein water is alternately introduced at predetermined intervals and domestic water is alternately discharged at predetermined intervals. According to claim 1, Alternating input and output units including a first input and output line and a second input and output line respectively connected to one side and the other side of the non-filtration side; and
a control unit that allows water to flow into the non-filtration side by alternately using the first input/output line and the second input/output line when water is filtered in the filtering unit; A water treatment device further comprising: The water treatment device of claim 4, wherein the alternating input/output unit further includes a first branch line connected to the first input/output line and a second branch line connected to the second input/output line and the first branch line. The method of claim 5, wherein when water flows into the non-filtration side through the first input/output line, the household water is discharged through a portion of the second input/output line, a second branch line, and a portion of the first branch line. A water treatment device that allows the domestic water to be discharged through a portion of the first input and output line and the first branch line when water flows into the non-filtration side through the second input and output line. The water treatment device according to claim 5, wherein the alternating input/output unit further includes a flow path switching valve to which the first and second input/output lines are connected, and first and second opening/closing valves provided in the first and second branch lines, respectively. The water treatment device of claim 7, wherein the control unit alternately switches the flow path switching valve to the first input/output line or the second input/output line. The method of claim 8, wherein the control unit closes the first on/off valve and opens the second on/off valve when the flow path switching valve is switched to the first input/output line, and when the flow path switching valve is switched to the second input/output line, the control unit closes the first on/off valve and opens the second on/off valve. A water treatment device in which the second on-off valve is closed and the first on-off valve is open. The water treatment device according to claim 5, wherein the first branch line is provided with a domestic water valve that discharges the domestic water while maintaining a predetermined filtration pressure on the non-filtration side. The water treatment device according to claim 10, wherein the second branch line is connected to a portion of the first branch line in front of the domestic water valve.

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