KR0119057Y1 - Concentrated water drainage apparatus of water purifier - Google Patents

Abstract

The present invention relates to a concentrated water discharge device for discharging the concentrated water of the water purifier to remove the contaminants contained in the raw water, in the water purifier to perform the purified water through the pre-treatment filter, membrane filter and post-treatment filter In addition, the drain pipe 10 for discharging the concentrated water in the membrane filter 7 is provided with a flow rate control means 100 for controlling the discharge of the concentrated water is possible to control the discharge of the concentrated water, as well as the purification of the membrane filter Not only can internal cleaning be carried out, but also a certain amount of concentrated water is discharged at the time of purification, which makes it very convenient to use.

Description

Concentrated water discharge device of water purifier

1 is a schematic diagram showing the configuration of a general water purifier,

2 is a sectional view showing the main portion of the conventional water purifier showing the discharge device of concentrated water,

3 is a rear perspective view showing the water purifier according to the first embodiment of the present invention,

4 is an enlarged perspective view showing the main portion according to the first embodiment,

5 is a side cross-sectional view of FIG.

6 is a partial longitudinal sectional view showing the discharged state of the concentrated water according to the first embodiment,

7 is a partial cross-sectional view showing a discharge state of the washing water according to the first embodiment,

8 is a partial perspective view showing another modification of the first and second valves applied to the water purifier according to the first embodiment,

9 is a partial cross-sectional view showing a concentrated water discharge device of the water purifier according to the second embodiment of the present invention,

10 is a partial sectional view showing an operating state at the time of water purification according to the second embodiment,

11 is a partial cross-sectional view showing an operating state during filter cleaning according to the second embodiment.

Explanation of symbols on the main parts of the drawings

7: membrane filter 10: drain pipe

100: flow control means 110: connection pipe

120: first valve 122: second valve

120a, 122a: through hole 120b, 122b: communicating tube

130 driving means 210 holder member

210a: incision 220: cam member

230: drive motor

The present invention relates to a water purifier for removing harmful contaminants contained in raw water, such as tap water, and more particularly, to a water purifier capable of easily controlling the discharge of the concentrated water discharged through the membrane filter.

In general, water purifiers can be roughly classified into natural filtration, direct filtration, ion exchange resin, and reverse osmosis according to the method of purifying raw water. The natural filtration is based on the gravity of stored raw water and the raw water is ceramic filter, activated carbon. Water is passed through the ion exchange resin, activated carbon, and elvan, but this is because the size of the holes formed in the filter is relatively large, and various heavy metals or chemical contaminants are passed through as they are. .

In addition, the direct filtration allows the raw water to pass through the micro filter and the activated carbon filter by the water pressure of the raw water supplied from the tap, which is advantageous in that it is easy to install, but frequently due to the contaminants formed in the filter. It is inconvenient to replace the filter, and the ion exchange resin formula is a plastic resin that separates and removes metal ions such as iron, lead, zinc, and cadmium dissolved in raw water to purify them. It is applied to and there is a problem that does not sufficiently remove carcinogens or organic substances.

On the other hand, the reverse osmosis pressure is applied to the raw water to pass through the membrane filter, which is an artificial osmosis membrane to purify, and removes heavy metals, bacteria, carcinogens, etc. and at the same time to pass only pure water and dissolved oxygen, etc. It is used in the scientific industry, cleaning of ultra-precision electronic components, or medicine, and recently, it is widely used in household water purifiers for drinking water.

As the conventional reverse osmosis water purifier, as shown in FIG. 1, the raw water supplied into the water supply pipe 3 through the adapter 2 connected to the faucet 1 passes through the pretreatment filter 4, and various harmful substances such as chlorine components. The organic compound is removed, and the raw water passing through the pretreatment filter 4 is regulated by the solenoid valve 5, and at the same time, it is boosted to a predetermined pressure in accordance with the operation of the boost pump 6 to filter the membrane filter 7. When it is sent to the membrane filter, various heavy metals, carcinogens, bacteria and other bacteria are removed, and the raw water passing through the membrane filter 7 passes through the post-treatment filter 8 to remove odors such as toxic gases. After the water is stored in the purified water tank (9), the concentrated water discharged from the membrane filter (7) is drained to the lower side of the adapter (2) through the drain pipe 10, the purified water in the purified water tank (9) Valve (11) It is configured to be withdrawn by being discharged through).

In addition, when the concentrated water that has not passed through the membrane filter 7 is drained through the drain pipe 10, as shown in FIG. 2, the concentrated water screwed to the lower side of the adapter 2 is adjusted according to the adjustment of the control valve 12. It is discharged | emitted through the substantially T-shaped drain hole 12a formed in the inside.

However, in the conventional water purifier configured as described above, the discharge of the concentrated water is determined according to the position of the control valve, so that it is not easy to adjust the proper opening / closing degree of the regulating valve that enables the proper discharge of the concentrated water according to the purified water amount. Due to this, the discharge of the concentrated water is not smooth, and the membrane filter is easily contaminated by the concentrated water that has not been discharged.

The present invention is devised to solve the above-described problems of the prior art, an object of the present invention is to provide a concentrated water discharge device of the water purifier that can be discharged smoothly by the discharge of the concentrated water is made automatically. It is.

Another object of the present invention is to provide a concentrated water discharge device for a water purifier that can control the discharge of the concentrated water discharged to significantly extend the life of the membrane filter.

The concentrated water discharge device of the water purifier according to the present invention made to achieve the above object is a water purifier for purifying the raw water through the pre-treatment filter, membrane filter and post-treatment filter, to discharge the concentrated water produced by the membrane filter It is characterized in that it is possible to adjust the discharge of the concentrated water by installing a flow control means for controlling the discharge of the concentrated water by changing the inner diameter of the drain pipe somewhere in the drain pipe.

Therefore, as the diameter of the drain pipe is changed by the operation of the drain pipe control means, it is possible to control the discharge of the concentrated water or the washing water, so that it is possible to clean the membrane filter as well as the water purification function. It is possible to significantly extend the life of.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

3 to 8 is a view showing the concentrated water discharge device of the water purifier according to the first embodiment of the present invention, the same configuration and the same reference numerals for the same configuration as the conventional configuration, the detailed description thereof Omit.

3 to 5, the diameter of the drain pipe 10 is reduced or expanded in the middle of the drain pipe 10 having one end connected to the adapter 2 and the other end connected to the membrane filter 7. It is equipped with a flow control means 100 for controlling the flow rate of the concentrated water circulated to.

The flow control means 100 is connected to the connection pipe 110 closely connected in the middle of the drain pipe 10 disposed on the back side of the water purifier main body 13, and is installed rotatably inserted in the connection pipe 110, concentrated water The first and second valves 120 and 122 to control the discharge of the, and the drive means 130 to rotate the first and second valves 120, 122.

In addition, the connecting pipe 110 is closely connected via a pair of connecting holes 112a and 112b formed of a resin material having elasticity in the middle of the drain pipe 10, and the first and second valves 120 are connected to each other. A plurality of through holes 120a and 122a are formed at 122 in the same direction as the central axis of the connecting pipe 110 to allow the distribution of concentrated water. The through holes 120a and 122a are formed in a form orthogonal to each other so as to reduce the flow rate of the concentrated water passing through and to maintain a constant flow rate.

In addition, the through holes 120a and 122a are not limited to those formed in the first and second valves 120 and 122, and the first and second valves 120 may be, for example, as illustrated in FIG. 8. The thickness of the 122 may be formed to be thin and the communication pipes 120b and 122b may be closely inserted in the longitudinal direction to discharge the concentrated water.

Meanwhile, the driving means 130 for rotating the first and second valves 120 and 122 includes a drive motor 134 having a drive gear 134a mounted in the case 132 and the drive gear 134a. And a pair of first and second gears 136a and 136b rotated in engagement with the first and second gears 136a and 136b, the lower ends of which are rotatably fixed to the first and second gears 136a and 136b. The first and second rotary shafts 138a and 138b are fixed to 120 and 122 and rotated according to the operation of the driving motor 134.

In addition, the upper and lower sides of the first and second valves 120 and 122 support the first and second valves 120 and 122 so as to be rotatable, and at the same time, the sealing member 140 prevents leakage of concentrated water. ) And the support member 142 is coupled.

Next, the operation and effect of the purified water discharge device of the first embodiment configured as described above will be described.

First, the raw water supplied into the water supply pipe 3 through the faucet 1 passes through the pretreatment filter 4, and the organic compound harmful to the human body, such as chlorine contained in the raw water, is removed, and then the membrane filter at a predetermined pressure. If the purified water is removed in the purified water tank (9) through the after-treatment filter (8) to remove various heavy metals, carcinogens, bacteria, such as bacteria, and then through the after-treatment filter (8). Intake can be made through the intake valve.

At this time, the concentrated water containing contaminants that do not pass through the membrane filter 7 is discharged to the lower side of the adapter 2 through the drain pipe 10, the concentrated water discharged into the drain pipe 10 is flow control According to the operation of the means 100 is discharged by a certain amount.

That is, the first and second valves 120 and 122 in the connection pipe 110 connected in the middle of the drain pipe 10 are closed as shown in FIG. 6 according to the operation of the driving means 130. As a result, the concentrated water is distributed into the through-holes 120a and 122a formed in the first and second valves 120 and 122 and then discharged by a predetermined amount through the drain pipe 10 and the adapter 2.

In this case, the first and second valves 120 and 122 may include the first and second gears 136a and 136b in which the driving gears 134a rotated according to the operation of the driving motor 134 are engaged with both sides thereof. By rotating the first and second rotary shafts (138a, 138b) are rotated at an angle of 90 degrees opposite to each other, thereby making the first and second rotary shafts (138a, 138b) integrally coupled with the first As the first and second valves 120 and 122 are rotated at an angle of 90 degrees, a predetermined amount of concentrated water is discharged into the through holes 120a and 122a.

On the other hand, when the membrane filter 7 is contaminated by concentrated water or the like during use, the purified water amount is significantly reduced. In this case, the driving means 130 is operated to operate the first and second valves 120 and 122 in the connection pipe 110. By discharging a large amount of concentrated water by the open state, the membrane filter 7 can be washed.

That is, when the driving gear 134a is rotated according to the operation of the driving motor 134, the first and second gears 136a and 136b meshed at both sides are rotated at an angle of 90 [deg.] So that the first and second rotation shafts are rotated. The first and second valves 138a and 138b rotate at opposite angles of 90 ° to each other and are coupled to the upper side of the first and second rotary shafts 138a and 138b. 120 and 122 are rotated at a predetermined angle, that is, 90 degrees, so that the connection pipe 11 is opened as shown in FIG. 7, whereby a large amount of concentrated water is introduced into the connection pipe 110. By allowing it to pass, the membrane filter 7 is cleaned.

Therefore, as a large amount of concentrated water passes through the connecting pipe 110, the amount of raw water flowing into the membrane filter 7 also becomes large, thereby cleaning the membrane filter 7, and the driving motor again after a predetermined time. When the first and second valves 120 and 122 are returned to their original states by operating 134, a predetermined amount of concentrated water is discharged into the connection pipe 110 to perform the water purification operation.

As described above, according to the present embodiment, it is possible to control the discharge of the concentrated water by opening and closing the first and second valves rotated according to the operation of the driving means, so that the purification of the membrane filter as well as the purified water can be performed. In addition, it has various advantages such as being very convenient to use.

Next, with reference to the accompanying drawings 9 to 11 of the present invention will be described a second embodiment of the concentrated water discharge device of the water purifier according to the present invention.

First, the flow control means 100 according to the present embodiment includes a holder member 210 for supporting the drain pipe 10 connected to the membrane filter 7 and a drain pipe 10 in the holder member 210. It consists of a drive motor 230 having a cam member 220 for eccentric rotation and a drive shaft 230a for rotating the cam member 220 so as to adjust the amount of concentrated water discharged by changing the diameter.

In addition, an opening 210a is formed at one side of the holder member 210, and the driving motor 230 is fixedly installed on the backing plate 240 mounted on the rear surface of the main body 13.

In the figure, reference numeral 7a denotes a membrane membrane formed in the membrane filter 7 to prevent contaminants contained in raw water from permeating, and reference numeral 7b denotes a purified water passage through which the purified water flowing through the membrane membrane 7a flows. It is shown.

Next, the concentrated water discharging device of the water purifier according to the second embodiment of the present invention configured as described above, when raw water from which harmful organic compounds such as chlorine is removed from the previous filter is introduced into the membrane filter 7 at a predetermined pressure, Raw water penetrates through a plurality of membrane membranes' 7a and removes various heavy metals, carcinogens, bacteria, etc., and then flows into the water purification passage 7b formed therein to perform water purification.

In addition, the concentrated water that does not penetrate the membrane membrane 7a is discharged by a predetermined amount to the outside of the water purifier body 13 through the drain pipe 10.

At this time, the concentrated water discharged through the drain pipe 10 is reduced in the pipe diameter of the drain pipe 10 by the operation of the flow control means 100 to discharge the discharged amount of the concentrated water by a small amount.

That is, the cam member 220 rotated according to the operation of the drive motor 230 is located in the cutout 210a of the holder member 210 to compress one side of the drain pipe 10 as shown in FIG. As a result, the pipe diameter of the drain pipe 10 is reduced, thereby allowing a small amount of the concentrated water to be discharged by a predetermined amount.

On the other hand, if the membrane filter 7 is contaminated by concentrated water or the like during use, the amount of purified water is significantly reduced. At this time, the cam member 220 rotated according to the operation of the driving motor 230 has a holder as shown in FIG. Since the diameter of the drain pipe 10 is maximized by being separated from the cutout 210a of the member 210, a large amount of concentrated water can be distributed inside the drain pipe 10 so that a membrane filter ( 7) can be cleaned.

That is, when the cam member 220 coupled to the upper side is eccentrically rotated by the rotation operation of the rotary shaft 230a which is rotated according to the operation of the driving motor 230, the outer circumferential surface is separated from the drain pipe 10 held by Since the drain pipe 10 maintains a uniform diameter as a whole, a large amount of concentrated water is discharged. Accordingly, the raw water introduced into the membrane filter 7 does not pass through the membrane membrane 7a and is discharged as it is into the drain pipe 10. Internal cleaning of the membrane filter 7 is made.

Therefore, when the cam member 220 rotated according to the operation of the driving motor 230 presses one side of the drain pipe 10, the discharge of the concentrated water becomes a small amount and maintains a constant amount, thereby performing a water purification operation. When the cam member 220 rotates by releasing the force applied to the drain pipe 10 by the operation of the driving motor 230, a large amount of concentrated water is discharged through the drain pipe 10 so that the internal cleaning of the membrane filter 7 is performed. This is done easily.

As described above, even in this embodiment, it is possible to control the discharge of the concentrated water by the rotating operation of the cam member rotated by the operation of the drive motor with a simple structure, so that the purified water can be cleaned of the membrane filter as well. It has an advantage.

Claims (7)

In a water purifier that performs water purification by passing raw water supplied through a pretreatment filter, a membrane filter, and a post-treatment filter, The drainage pipe 10 for discharging the concentrated water in the membrane filter (7) is a concentrated water discharge device of the water purifier, characterized in that the flow control means for controlling the discharge of the concentrated water (100) is provided. According to claim 1, wherein the flow rate control means 100 is the drain pipe 10 is connected to the connecting pipe 110 and the middle of the connection pipe 110 is installed rotatably inserted to control the discharge of the concentrated water 1 and the second valve (120) (122), the concentrated water discharge device of the water purifier, characterized in that consisting of a drive means (130) for rotating the first and second valves (120, 122). According to claim 2, wherein the first and second valves 120, 122, the concentrated water discharge device of the water purifier, characterized in that a plurality of through-holes (120a, 122a) is formed to enable the discharge of the concentrated water. According to claim 2, The first and second valves 120, 122, the concentrated water discharge device of the water purifier, characterized in that a plurality of communication pipes (120b, 122b) is inserted to enable the discharge of the concentrated water. The apparatus of claim 3 or 4, wherein the through hole (120a) (122a) and the communicating tube (120b) (122b) are formed in a form orthogonal to each other. According to claim 1, wherein the flow control means 100 supports the drain pipe 10, the holder member 210 having a cutout 210a formed on one side, and selectively in the drain pipe 10 in the holder member 210 In contact with the cam member 220 for controlling the discharge of the concentrated water and the concentrated water discharge device of the water purifier, characterized in that consisting of a drive motor 230 for rotating the cam member (220). According to claim 6, wherein the cam member 220 is concentrated water discharge device of the water purifier, characterized in that the eccentric rotation in accordance with the operation of the drive motor 230 in contact with one side of the drain pipe (10).