KR20020092543A - water purifying system for washing machine and method for controlling washing by using the same - Google Patents

Abstract

PURPOSE: A system for purifying washing water of a washing machine and a method for controlling washing by using the same are provided to remove the heavy metals and other impurities on the water supply path to supply clean water with a low power consumption. CONSTITUTION: A washing control method by using a washing water purifying system of a washing machine includes the steps of turning on an electric condensing element, a magnetic separating element and a water supply valve when supplying water for washing or rinsing operation, turning off the water supply valve and the electric condensing element when the water supply to a set water level is finished, draining the water after the washing or rinsing operation, and dehydrating clothing after the draining is finished, wherein the magnetic separating element is turned off simultaneously with the turning on of the water supply valve in case of the draining, the water supply valve is turned off after a predetermined time while the water supply valve is turned on, the dehydration is carried out after the turning off of the water supply valve, and the flock separated by the magnetic separation element is not attached to the clothing by rotating a pulsator or a washing tub.

Description

Water purifying system for washing machine and method for controlling washing by using the same}

The present invention relates to a washing machine, and more particularly, to remove heavy metals and foreign substances contained therein in a washing water supplied in a water supply administration performed prior to the progress of washing and rinsing. The present invention relates to a laundry water purification system for supplying laundry and a laundry control method using the same.

Generally, as shown in FIG. 1A, a washing machine is a vertical washing machine in which washing is performed according to rotation of the pulsator 3 or the washing tank 2 in a state where the water storage tank 1 and the washing tank 2 are installed in a direction perpendicular to the ground. And a so-called drum washing machine in which the water storage tank 1 and the washing tank 2 (that is, drums) are installed in the horizontal direction with respect to the ground as shown in FIG. 1B, and the inclined washing machine in which the washing tank 2 is inclined on the ground. (Not shown).

The conventional form of water supply in such washing machines takes the form of directly supplying the water drawn through the water pipe into the washing tank 2 without any filtering process.

That is, the water (ie, washing water) drawn through the water pipe is supplied into the reservoir 1 without any filtration as the water supply valve 4 installed in the washing machine is opened.

Accordingly, there is a problem that the washing performance is lowered due to various heavy metals and other foreign substances contained in the wash water.

On the other hand, in order to solve such a problem, in the case of water having a high hardness using a hardness sensor to improve the washing performance, to increase the washing time, or to improve the washing performance by heating the washing water using a heater Although the method of planning is also applied, this has a problem of increasing the power consumption.

Another method is to use an ion exchange resin, but it was inconvenient to refill the salt at a certain time.

The present invention is to solve the above problems, and to remove heavy metals and other foreign substances contained in the washing water supplied into the washing tank without consuming a lot of power on the water supply path so that the low hardness and clean water is supplied to the washing tank. It is an object of the present invention to provide a washing water purification system and a laundry control method using the same.

1A and 1B are perspective views illustrating a general type of washing machine,

1a is a perspective view of a vertical washing machine

1B is a perspective view showing a drum type washing machine

2A and 2B are schematic views showing a water supply structure of each washing machine shown in FIGS. 1A and 1B.

Figure 3 is a block diagram showing an application example of the washing water purification system according to the present invention washing machine

Figure 4 is a detailed configuration of the washing water purification apparatus according to the present invention

FIG. 5 is a cross-sectional view taken along the line I-I of FIG. 4, and a longitudinal cross-sectional view showing an arrangement structure of a cathode tube and an anode rod. FIG.

6 is a perspective view showing the structure of the catching member of FIG.

7 is a conceptual view illustrating a floc removal process by the magnetic separation means of the present invention.

8 is a flowchart illustrating a laundry control method according to the present invention.

Explanation of symbols on the main parts of the drawings

1: water tank 2: washing tank

3: pulsator 4: water supply valve

5: Detergent container 10: Electric coagulation means

11: inlet 12: outlet

13: cathode structure 14: anode structure

15: housing 16: space

17: power source 20: magnetic separation means

21: housing 22: inlet

23: coil 24: bobbin

25: skip member 26: outlet

30: Flock

In order to achieve the above object, the present invention is an electroaggregation means for agglomerating heavy metals and foreign substances contained in the wash water on the wash water supply line for supplying the wash water to the washing tank to convert to a floc having a magnetic (Floc) And, there is provided a washing water purification system for a washing machine, characterized in that the magnetic separation means for adsorbing the floc by magnetic force so that the floc is separated from the washing water passed through the electrocoagulation means.

On the other hand, according to another aspect of the present invention for achieving the above object, the present invention is a floc having magnetic by agglomerating heavy metals and foreign substances contained in the wash water on the wash water supply line for supplying the wash water to the washing tank A washing machine having an electroaggregating means for converting to (Floc) and magnetic separating means for adsorbing the flocks by magnetic force so as to separate the flocs from the washing water passed through the electrocoagulating means; Turning on the electric coagulation means, the magnetic separation means, and the water supply valve during water supply for washing or rinsing; turning off the water valve and the electric coagulation means when the water supply is completed up to a set level for washing or rinsing; and washing or rinsing is completed. Turning on the water supply valve when the drainage proceeds and turning off the magnetic separation means; turning off the water supply valve after a predetermined time while the water supply valve is turned on; and dehydrating the water supply valve after turning off the water supply valve. Laundry control method characterized in that it comprises a.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 8.

3 is a configuration diagram showing an application example of the washing water purification system according to the present invention to a washing machine, Figure 4 is a detailed configuration diagram of the washing water purification apparatus according to the present invention.

And, Figure 5 is a cross-sectional view along the line I-I of Figure 4, a longitudinal cross-sectional view showing the arrangement structure of the cathode tube and the positive electrode rod, Figure 6 is a perspective view showing the structure of the filter member of Figure 4, Figure 7 is the present invention It is a conceptual diagram for explaining a floc removal process by the magnetic separation means.

The washing machine according to the present invention aggregates heavy metals and foreign substances contained in the washing water on the washing water supply line 2 for supplying washing water (or rinsing water) to the washing tank 2. Electro flocculation means (10) for converting to (Floc), and magnetic separation means for adsorbing the floc 30 by magnetic force so that the floc 30 is separated from the washing water passed through the electroflocculation means (10) Is provided.

On the other hand, the electrocoagulant means 10 is formed inside the space flows for washing water and the inlet 11 for the inflow of the wash water into the space portion and the outlet for the outflow of the wash water from the space (16) ( 12 is provided to the housing 15, the cathode structure 13 (CATHODE (-)) provided on the inner peripheral surface of the space portion 16 of the housing 15, and installed so as to be located in the center of the space portion 16 And an anode structure 14 (ANODE (+)) and a power source 17 electrically connected to the anode structure 14 and the cathode structure 13.

At this time, the cathode structure 13 is a hollow cylindrical tube, the anode structure 14 forms a rod-like rod.

The cathode structure 13 and the anode structure 14 generally use iron (Fe) or aluminum (Al), and both sides of the cathode structure 13 and the anode structure 14 are mainly made of the same material. When using iron is better than aluminum, it is preferable to use iron.

On the other hand, the magnetic separation means 20 is connected to the outlet 12 of the electrocoagulation means 10, the flow path for washing water is formed therein and the inlet port 22 and the flow path for inflow of the wash water into the flow path A housing 21 provided with an outlet port 26 for outflow of the washing water from the body, a magnetic force generating unit provided in an outer space of the flow path of the housing 21, and an inner circumferential surface of the flow path of the housing 21. It comprises a filtering member 25 for filtering the floc 30 (Floc) contained in the washing water to pass through.

At this time, the magnetic force generating portion is composed of a hollow cylindrical bobbin 24 and a coil 23 wound on the outer peripheral surface of the bobbin 24.

In addition, the filtering member 25 has a mesh structure and forms a hollow cylinder shape.

In addition, the filtering member 25 is preferably made of a magnetic material.

On the other hand, the bobbin 24 is not necessarily a magnetic material, but if it is not a magnetic material, the magnetic force may be weakened, so it is more preferably made of a magnetic material.

According to the washing water purification system of the present invention configured as described above, the heavy metals and other foreign substances contained in the washing water are subjected to the floc 30 (Floc) magnetically through the electrocoagulation means 10 in the water supply administration. After the conversion, the floc 30 passes through the magnetic separation means 20 again, and the floc 30 and the purified water are separated, and then the water is supplied into the washing tank 2 through the water supply valve 4.

This process will be described in more detail with reference to FIGS. 3 to 7 as follows.

When water supply starts, a current is constant in the hollow cylinder type cathode structure 13 (hereinafter referred to as "cathode tube") and the anode structure 14 (hereinafter referred to as "anode rod") of the electrocoagulation apparatus 10. As a result, different chemical reactions occur in the cathode tube and the anode rod.

At this time, the cathode (Cathode) tube 13, the main reaction is the reduction reaction ^{(2H + + 2e - → H} 2 (↑)) of the hydrogen gas of the hydrogen ions in a, and the OH- produced by electrolysis of water.

The main reaction in the anode rod is an elution reaction of metal ions (Fe → Fe ²⁺ + 2e ⁻ or Fe ³⁺ + 3e ⁻ ).

During the reaction at the anode, negative and positive electrically conductive materials contained in the water aggregate into a stabilized floc 30 (Floc).

In other words, Fe (OH) ₂ , Fe (OH) ₃ , Al (OH) _3, etc. are generated by the reaction at the anode, which serves as a flocculant to surround the heavy metal and foreign substances to form the floc 30.

On the other hand, the Fe (OH) ₂ , Fe (OH) ₃ is magnetic.

That is, in the case of experimenting with Fe as the anode rod material of the electrocoagulation means 10 as described above, heavy metals, foreign matters and chemical components are aggregated into the flocs 30 and have physical properties as magnetic components. I could confirm it.

Therefore, hereinafter, a process of removing the floc through the magnetic separation means 20 after the formation of the floc 30 by the electrocoagulation means 10 will be described.

As described above, since the floc 30 has physical properties as a magnetic substance, when the current is applied to the coil 23 of the magnetic separation means 20, the magnetic force generating part becomes a magnet to generate magnetic force. ) Is attracted to the magnetic generating part.

At this time, since the filter member 25 having a mesh structure is installed on the inner circumferential surface of the flow path of the housing 21, the floc 30 is collected by the filter member 25.

That is, since the floc 30 has physical properties as a magnetic substance, a current is applied to the magnetic force generating portion of the magnetic separation means 20 while passing the washing water through a flow path formed in the housing 21 of the magnetic separation means 20. If only the floc 30 contained in the wash water is collected in the filtering member (25).

As described above, the purified water passing through the magnetic separation means 20 is supplied directly to the washing tank 2 through the water supply valve 4, or is supplied to the washing tank 2 via the detergent container 5 to perform washing.

On the other hand, in the above embodiment, the electromagnet is used to generate the magnetic force, but the permanent magnet may be used instead of the electromagnet.

Since the magnetic separation means 20 generates a magnetic force, it also serves to improve the washing performance by magnetizing the washing water, and the effect on the washing performance when magnetic is added to the water has been known in various ways. The description is omitted.

Meanwhile, in the above embodiment, the structure of the cathode tube and the anode rod is described as a hollow cylinder and a rod-like structure. However, the cathode structure 14 and the cathode structure 13 having a plate-like structure instead of the cathode tube and the anode rod are described. Even the installation of the same electrocoagulation takes place.

That is, two plates forming a cathode are positioned on both upper and lower sides, and a plate forming an anode is positioned at the middle thereof. The cathode is connected to the upper and lower plates and the anode is connected to the plate located in the middle. Even if a current is applied, the same electrocoagulation action as in the above-described embodiment is achieved, of course.

Hereinafter, a washing (including a rinsing stroke) control process using the washing water purification system of the present invention will be described.

First, the water supply valve 4 is turned on to supply water for washing or rinsing, and the water supply proceeds, at which time the electrocoagulation means 10 and the magnetic separation means 20 are turned on at the same time. do.

On the other hand, after the water supply is progressed and the water supply to the set water level for washing or rinsing, the water supply valve (4) is turned off (off) and the electrocoagulation means 10 (off).

That is, the coagulation function is stopped when the water supply valve 4 is turned off to stop the water supply.

Subsequently, when the washing or rinsing stroke is performed and the washing or rinsing stroke is completed after a predetermined time, drainage and dehydration are performed.

On the other hand, when the drainage proceeds after completion of the washing stroke or the rinsing stroke, the water supply valve 4 is turned on and the magnetic separation means 20 is turned off, and then the water supply valve 4 is turned off after a predetermined time t. By turning off), the floc 30 collected in the magnetic separation means 20 is separated from the magnetic separation means 20 and drained by the water supplied thereto.

That is, when water is supplied in the state in which the magnetic separation means 20 is turned off, the self-cleaning action of washing and removing the floc 30 collected in the magnetic separation means 20 by the water supplied to the magnetic separation means 20 is performed. This is done.

In this self-cleaning operation, the floc 30 separated from the magnetic separation means 20 by the water supplied by rotating the washing tank 2 or the washing blade 3 does not adhere to the laundry contained in the washing tank 2. Allow drainage without

At this time, the stirring of the washing tank (2) or washing blade (3) is of course more advantageous in preventing the floc 30 is attached to the laundry.

In some cases, the user may artificially remove the collected flocks 30 without using the self-cleaning function as described above.

The present invention removes heavy metals and other foreign substances contained in the washing water supplied into the washing tank by passing the washing water through the electric coagulation means and the magnetic separation means, so that the water of low hardness and clean water is supplied to the washing tank to wash. The performance can be improved.

In other words, conventionally, when water of high hardness increases the washing time or heats the washing water by using a heater to improve washing performance, the power consumption is large by driving the motor and the heater, while the purification system of the present invention As the power consumption is low, the washing performance can be improved.

In addition, the present invention to filter the foreign matter in the water during washing or rinsing, and the filtered foreign matter to be discharged to the outside with the water that is automatically supplied when the drainage can be self-cleaning of the water purification system.

Claims (5)

Electrocoagulation means for coagulating heavy metals and foreign substances contained in the washing water and converting them into magnetic flocs; Magnetic separation means for adsorbing the floc by magnetic force so that the floc is separated from the washing water passing through the electrocoagulation means, the washing water purification of the washing machine, characterized in that provided on the washing water supply line for supplying the washing water to the washing tank system. Electro-aggregation means for agglomerating heavy metals and foreign substances contained in the wash water and converting them into flocs having magnetic properties on a wash water supply line for supplying washing water to a washing tank; A washing machine comprising magnetic separation means for adsorbing the flocks by magnetic force to separate the flocks; Turning on the electric coagulation means, the magnetic separation means and the water supply valve during water supply for washing or rinsing; Turning off the water supply valve and the electrocoagulation means upon completion of water supply to the set water level for washing or rinsing, Proceeding with drainage after washing or rinsing is completed; Washing control method using a washing water purification system, characterized in that it comprises the step of proceeding dehydration after completion of drainage. The method of claim 2, Turning off the water supply valve and turning off the magnetic separation means when the drainage proceeds after the washing or rinsing is completed; Turning off the water supply valve after a predetermined time while the water supply valve is turned on; Washing control method using a washing water purification system characterized in that it further comprises the step of proceeding to dewatering after the water supply valve off. The method of claim 3, wherein When the drainage proceeds after the washing or rinsing is completed, the water supply valve is turned on and the magnetic separation means is turned off. Washing control method using a washing water purification system, characterized in that the floc separated from the magnetic separation means by the water supplied by rotating the washing blade or the washing tank is not attached to the laundry. The method of claim 4, wherein Washing wing or washing tank is a washing control method using a washing water purification system, characterized in that the stirring.