KR20170045565A - Agitation Method of Ion Exchange Resin of Softener Using Flow Switching Valve Module - Google Patents

Agitation Method of Ion Exchange Resin of Softener Using Flow Switching Valve Module Download PDF

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Publication number
KR20170045565A
KR20170045565A KR1020150145282A KR20150145282A KR20170045565A KR 20170045565 A KR20170045565 A KR 20170045565A KR 1020150145282 A KR1020150145282 A KR 1020150145282A KR 20150145282 A KR20150145282 A KR 20150145282A KR 20170045565 A KR20170045565 A KR 20170045565A
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South Korea
Prior art keywords
tank
regeneration
water
exchange resin
ion exchange
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KR1020150145282A
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Korean (ko)
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KR101813646B1 (en
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최기석
정의민
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주식회사 교원
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/157—Flow control valves: Damping or calibrated passages
    • B01D35/1573—Flow control valves
    • B01F13/00—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

A method for stirring an ion exchange resin of a water softener using a channel switching valve module according to the present invention comprises a regeneration tank containing a regenerant therein, a first tank and a second tank connected to the regeneration tank, 1. A method for stirring an ion exchange resin in a water softener comprising a flow path switching valve module including a fixed plate and a rotating plate for changing a flow path of water between the regeneration tank, the first tank and the second tank according to a relative rotation angle, (A) operating the channel switching valve module in the regeneration intake mode to replenish the raw water in the regeneration tank, operating the channel switching valve module in the regeneration outgoing mode to regenerate the regeneration water contained in the regeneration tank from the first tank and (B) discharging the water through the second tank to the outside, and operating the flow path switching valve module in a training mode to discharge raw water to the first tank and the second tank And (c) stirring the ion exchange resin by replacing the air layer formed between the first tank and the ion exchange resin inside the second tank with a water layer.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ion exchange resin agitating method for a water softener using a flow path switching valve module,

The present invention relates to an ion exchange resin agitation method for a water softener, and more particularly, to an ion exchange resin agitation method for a water softener capable of agitating an ion exchange resin using mode switching through a channel switching valve module of a water softener without a separate stirring device ≪ / RTI >

In general, tap water (hard water) contains a large amount of chlorine components used in the purification process. It also contains various heavy metals (ions) such as iron, zinc, lead, and mercury which are harmful to human body due to water pollution caused by factors such as aging pipes. .

Such tap water is not fatal to the human body, but if used intact, the metal ion contained in the water and the fatty acid of the soap are combined to form a metallic foreign substance on the user's skin. Such a metallic foreign matter causes various skin diseases such as allergy again It is known to be a direct cause of accelerated aging of the skin.

To prevent this, water softener is widely used for washing and cleaning by exchanging water hardness components Ca2 + and Mg2 + with Na + in a strong Na + cation exchange resin to make soft water.

Such a water softener is composed of a principle that calcium ions and magnesium ions contained in hard water are replaced with sodium ions (Na +). Therefore, the water softener is equipped with an ion exchange resin containing a special polymer compound containing sodium ions, And a regeneration vessel containing an ion exchange resin recycling material such as salt for sodium ion production.

That is, in the water softener, the water is kept in contact with the ion exchange resin while the tap water is continuously stored in the soft water bottle in the state of storing a large amount of fine ion exchange resin in the form of ball.

At this time, since the Na + component is significantly reduced due to continuous contact with the tap water, the ion exchange resin is required to regenerate a predetermined regeneration process for the ion exchange resin such as a salt water containing NaCl component need.

In this regeneration process, regenerated liquid of a predetermined concentration is passed through the stagnant ion exchange resin, but the regeneration liquid does not come into contact with the interface between the stacked ion exchange resins, so that there is a problem in that sufficient regeneration of the ion exchange resin is not achieved . Therefore, it is necessary to stir the ion exchange resin to regenerate the remaining surface which is not sufficiently regenerated.

On the other hand, in the conventional water softener, the stirrer and the agitating member are directly mounted for stirring the ion exchange resin. However, this not only increases the unit price of the water softener, but also increases the weight of the water softener as a whole and decreases the capacity of the ion exchange resin There was a problem.

Therefore, a method for solving such a problem is required.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in an effort to solve the problems of the prior art described above, and has as its object to provide a method of sufficiently stirring an ion exchange resin without any additional stirring device.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the above object, the present invention provides a method for stirring an ion exchange resin in a water softener using a channel switching valve module, comprising: a regeneration tank containing a regenerant therein; a first regeneration tank connected to the regeneration tank, An ion exchange resin of a water softener including a tank and a second tank, and a flow path switching valve module including a rotating plate and a fixed plate for changing a flow path of water between the regeneration tank, the first tank and the second tank according to a relative rotation angle (A) operating the flow path switching valve module in the regeneration intake mode to replenish the raw water in the regeneration tank, and operating the flow path switching valve module in the regeneration outgoing mode to regenerate the regeneration water in the regeneration tank, (B) discharging the water through the first tank and the second tank to the outside, and operating the flow path switching valve module in a training mode, (C) supplying the ion exchange resin to the first tank and the second tank, and stirring the ion exchange resin by replacing the air layer formed between the first tank and the ion exchange resin inside the second tank with a water layer .

The step (c) may be continued until the air layer in the first tank and the second tank is completely replaced with a water layer.

In addition, after the step (c), the flow path switching valve module may be operated in the regeneration outgoing mode to discharge the raw water contained in the first tank and the second tank.

And (e) repeating the steps (c) and (d).

The step (c) may control the supply amount of the raw water to less than a remaining volume less the volume of the ion exchange resin in the total volume of the first tank and the second tank.

The steps (c) and (d) may be performed for the same time.

In order to solve the above problems, the ion exchange resin agitation method of the water softener using the flow path switching valve module of the present invention has the following effects.

First, there is an advantage that the ion exchange resin can be sufficiently stirred using only the mode conversion through the channel switching valve module of the water softener without a separate stirring device, thereby greatly improving the regeneration efficiency of the ion exchange resin.

Second, there is an advantage that the total regeneration time of the ion exchange resin can be shortened.

Third, there is an advantage that the unit price of the water softener can be lowered because no separate stirring device is provided.

Fourth, there is an advantage that the water softener can be lightened.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a front view of a water softener according to an embodiment of the present invention;
2 is a rear view of a water softener according to an embodiment of the present invention;
3 is a view illustrating a flow path switching valve module in a water softener according to an embodiment of the present invention;
FIG. 4 is a perspective view of a water softener according to an embodiment of the present invention, in which components of the flow path switching valve module are exploded; FIG.
FIG. 5 is a view illustrating a valve frame of a water flow switching valve module in a water softener according to an embodiment of the present invention; FIG.
FIG. 6 is a front view of a fixed plate and a rotating plate provided in the channel switching valve module in the water softener according to the embodiment of the present invention; FIG.
7 is a rear view of a fixed plate and a rotary plate provided in the flow path switching valve module in the water softener according to the embodiment of the present invention;
FIG. 8 is a view illustrating a type of a mode of a water softener according to an embodiment of the present invention, which is switched according to relative rotation between a fixed plate and a rotary plate provided in the channel switching valve module; FIG.
9 is a view illustrating a method of operating the flow path switching valve module in the regeneration outgoing mode in the ion exchange resin agitation method of the water softener according to the embodiment of the present invention;
FIG. 10 is a view illustrating an ion exchange resin agitation method of a water softener according to an embodiment of the present invention, in which an air layer is formed between ion exchange resins accommodated in a first tank and a second tank; And
FIG. 11 is a view showing a state in which raw water is supplied to the first tank and the second tank to stir the ion exchange resin in the ion exchange resin stirring method of the water softener according to the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

Further, the present invention provides a method for stirring an ion exchange resin of a water softener without using a separate stirring device. To this end, a water softener including a channel switching valve module is used. Therefore, the water softener including the flow path switching valve module will be described in detail below.

FIG. 1 is a front view of a water softener according to an embodiment of the present invention, and FIG. 2 is a rear view of a water softener according to an embodiment of the present invention.

1 and 2, a water softener according to an embodiment of the present invention includes a regeneration tank 10, a first tank 20, a second tank 30, a flow path switching valve module 100 ). In the following description, the direction shown in Fig. 1 is defined as the front surface of the water softener, and the direction shown in Fig. 2 is defined as the back surface of the water softener.

The regeneration tank 10 is formed to contain a regenerant therein, and the raw water supplied to the regeneration tank 10 passes between the regenerant. In this process, the regenerant is dissolved and the raw water becomes a regenerated water of a predetermined concentration.

The first tank 20 and the second tank 30 are provided below the regeneration tank 10 and are respectively connected to the regeneration tank 10. An ion exchange resin is accommodated in the first tank 20 and the second tank 30. The regeneration water delivered from the regeneration tank 10 passes through the ion exchange resin and exchanges ions, Thereby regenerating the ion exchange resin.

In this embodiment, the hot water is supplied to the first tank 20 and the cold water flows to the second tank 30. However, the present invention is not limited to this embodiment.

The flow path switching valve module 100 is a component that changes the flow path of water between the regeneration tank 10, the first tank 20, and the second tank 30. The detailed structure of the flow path switching valve module 100 will be described later.

Meanwhile, in the present embodiment, the first outlet 22a, the first inlet 22b, the second outlet 32a, and the second inlet 32b are provided at the bottom. The first outlet 22a and the second outlet 32a serve to discharge the water contained in the first tank 20 and the second tank 30 to the outside and the first inlet 22b And the second inlet 32b respectively receive the hot water and the cold water and transfer the hot water and the cold water to the flow path switching valve module 100.

Figs. 3 and 4 show the state of the flow path switching valve module 100. Fig.

3 and 4, in the present embodiment, the flow path switching valve module 100 includes a valve frame 110, a fixing plate 150, a rotating plate 140, a rotation guide 130, A connecting frame 125, a driving motor 120, and a first gear 122a and a second gear 122b.

Specifically, on the rear surface of the valve frame 110, a first raw water import pipe 111b, a second raw water pipe 111a, a first raw water pipe 112b, a second raw water pipe 112a, An export pipeline 112c, a first regeneration regeneration import pipeline 113b, a second regeneration regeneration import pipeline 113a, and a discharge pipeline 114 are provided.

As described above, the present invention provides a total of eight piping connectors on the valve frame 110 to control the flow path of water in eight directions.

Inside the valve frame 110, a fixed plate 150, a rotary plate 140, and a rotation guide 130, which are technical components for switching the flow path, are sequentially provided.

A plurality of through-holes are formed in the fixing plate 150. The plurality of through-holes are formed in the rotating plate 140 to couple the plurality of through holes in each operating mode of the water softener. Holes. This will be described later.

The rotation guide 130 is connected to a driving motor 120 provided adjacent to the valve frame 110. The driving motor 120 is connected to the connection frame 125 by a first gear 122a and a second gear 122b and is capable of transmitting rotational force to the rotation guide 130. [ That is, the rotation plate 140 is configured to be rotatable according to the degree of rotation of the rotation guide 130 due to the link groove and the projection structure that are meshed with the rotation guide 130.

At this time, the rotation plate 140 can adjust the relative angle with respect to the fixing plate 150 according to the rotation, and the regeneration tank 10, the first tank 20 ) And the second tank (30).

FIG. 5 is a detailed view of the valve frame 110, and FIGS. 6 and 7 are views showing the structure of the rotary plate 140 and the fixing plate 150 in detail.

First, as shown in FIG. 5, the valve frame 110 is formed with connection holes communicating with the respective pipe connectors. Specifically, the first raw water connection hole 101b and the second raw water connection hole 101a are in communication with the first raw import pipe 111b (see FIG. 3) and the second raw import pipe 111a (see FIG. 3) The third raw water connection hole 102b and the fourth raw water connection hole 102a and the fifth raw water connection hole 102c are connected to the first original export port 112b (see FIG. 3), the second original export port 112a 3), and communicates with the third circle exporting port 112c.

The first and second soft water replenishing water connection holes 103b and 103a are connected to the first soft water recycling import pipe 113b and the second soft water recycling water pipe 113a And the discharge connection hole 104 communicates with the discharge pipeline 114 (see FIG. 3).

That is, the valve frame 110 transfers the water flowing from the respective pipe connectors to the rotating plate 140 and the fixed plate 150.

6 and 7, the fixing plate 150 includes a first raw water connection hole 101b, a second raw water connection hole 101a, a third raw water connection hole 102b A first through hole 151a, a second through hole 151b, a third through hole 151c, and a fourth through hole 151c communicating with the fourth raw water connection hole 102a and the fifth raw water connection hole 102c, respectively, And a fifth through hole 152. The sixth and fourth through holes 152a and 152b communicate with the discharge connection hole 104, the first soft water replenishing water connection hole 103b, and the second soft water replenishing water connection hole 103a, respectively. A through hole 153a, a seventh through hole 153c, and an eighth through hole 153b.

The sixth through hole 153a is formed at the center of the fixing plate 150 and is slightly displaced from the discharge connection hole 104 of the valve frame 110. The sixth through hole 153a is formed in the valve frame 110, The sixth through hole 153a and the discharge connection hole 104 can communicate with each other since the long hole is formed to connect the hole 153a and the discharge connection hole 104 to each other.

The rotary plate 140 has a first coupling hole 141 and a second coupling hole 142 formed at an eccentric position and a center coupling groove 143 located at the center of the rotary plate 140 and a center coupling groove 143 A first outer connection groove 144b and a second outer connection groove 144a which are located outside the first outer connection groove 143 and the second outer connection groove 144a.

The center connection groove 143 is formed to intersect the long straight grooves so that the sixth through hole 153a and the seventh through hole H of the fixing plate 150 153c and the eighth through hole 153b can be communicated with each other or blocked.

The first outer connection groove 144b and the second outer connection groove 144a are formed to have a curvature corresponding to the peripheral curvature of the rotation plate 140, The first through-hole 151b, the second through-hole 151a, the third through-hole 151d, and the fourth through-hole 151c of the fixing plate 150 can be communicated with each other or blocked.

The water softener according to the present embodiment can be switched to various modes according to the relative rotation angle of the rotary plate 140 and the fixed plate 150 by the structure of the rotary plate 140 and the fixed plate 150 as described above.

7, the water softener according to the present embodiment can be switched to the training mode, the regeneration intake mode, the stop mode, the rinse mode, and the regeneration outgoing mode.

The training mode is a mode in which the first original import pipelines 111b and the first original export pipelines 112b and the second original import pipelines 111a and the second original export pipelines 112a communicate with each other, Refers to an operating state in which hot water can be supplied to the first tank 220 and the second tank 30, respectively, so that predetermined water can be converted into soft water.

The regeneration intake mode is a process of replenishing predetermined raw water to the regeneration tank 10 for regenerating water necessary for regeneration of the ion exchange resin contained in the first tank 20 and the second tank 30, Refers to an operating state in which the second original import rule 111a and the third original export rule 112c are communicated with each other.

The stop mode is a mode for a series of dissolution actions for adjusting the concentration of the regeneration water in the regeneration tank 10 to a concentration necessary for regeneration of the ion exchange resin contained in the first tank 20 and the second tank 30, It is an operating condition that prevents all the pipe connections from intercepting each other to prevent the flow of water.

The rinsing mode regenerates the ion exchange resin accommodated in the first tank 20 and the second tank 30 and then flows into the first tank 20 and the second tank 30 to regenerate the regenerated water passing through the inside of the first tank 20 and the second tank 30. [ The first and second regeneration regeneration importing ports 113a and 113a and the discharge port opening 114 are communicated with each other and the first and second primary regeneration regeneration ports 111b and 111b are connected to each other, The first original export port 112b and the second original import port 111a and the second original export port 112a, respectively.

The regeneration outgoing mode is a mode in which the regeneration water in the regeneration tank 10 is passed through the first tank 20 and the second tank 30 while the regenerated water in the first tank 20 and the second tank 30 The first and second regeneration regeneration importing sections 113b and 113b and the discharge piping section 114 are connected to each other so that the regeneration resin can be regenerated and the regeneration water can be completely discharged to the outside, .

The structure of the water softener according to the present embodiment has been described above, and the ion exchange resin agitation method of the water softener using the water softener will be described below.

In order to maintain the Na + content, the regeneration water of the regeneration tank 10 is supplied to the first tank 20 and the second tank 30 in order to maintain the Na + To regenerate the ion exchange resin.

In this regeneration process, the regenerated water of a predetermined concentration is passed through the stagnant ion exchange resin, but the regenerated water does not come into contact with the contact surface between the laminated ion exchange resins, so that sufficient regeneration of the ion exchange resin is not achieved.

Therefore, the present invention provides a stirring method capable of greatly improving the regeneration efficiency by stirring such an ion exchange resin without a separate stirring device.

9 to 11, an ion exchange resin agitation process of the water softener according to the present invention is shown.

First, the flow path switching valve module 100 is operated in the regeneration intake mode, and the regeneration tank 10 is replenished with the raw water.

The raw water W 1 is filled in the regeneration tank 10 and the raw water W 1 is converted into the regeneration water W 2 by the regeneration material P 1 contained in the regeneration tank 10 .

Since as shown in Figure 9 by operating the passage switching valve module 100, the playback Heading mode, the Views (W 2) accommodated in the regeneration tank 10. The first tank 20 and second tank 30 (B) is performed.

Views by the present process (W 2) is the regeneration of the ion exchange resin (P 2) is made as they pass between the between the ion-exchange resin (P 2), the first tank 20 and second tank, The regenerated water W 2 that has completely passed through the regeneration tank 30 is delivered to the discharge pipe port 114 through the first regeneration regeneration import port 113b and the second regeneration regeneration import port 113a and then discharged to the outside.

After the step (b) is performed, an air layer (a) is formed between the first tank 20 and the ion exchange resin P 2 accommodated in the second tank 30 as shown in FIG. 10 .

Next, as shown in FIG. 11, the flow path switching valve module 100 is operated in a training mode to supply raw water W 1 to the first tank 20 and the second tank 30, The step (c) of stirring the ion exchange resin is performed by replacing the air layer (a) formed between the tank 20 and the ion exchange resin (P 2 ) in the second tank 30 with a water layer.

That is, in this process, the water softener is operated in the training mode for a certain period of time, so that the air layer (a) and the water layer below the first tank 20 and the second tank 30 are reversed from each other, The ion exchange resin (P 2 ) can be stirred together.

Accordingly, the present invention can effectively stir the ion-exchange resin (P 2 ) without any additional stirring device, thereby greatly improving the regeneration ability of the ion-exchange resin (P 2 ) and shortening the regeneration time .

The step (c) may be performed in various ways. For example, the step (c) may be continued until the air layer (a) in the first tank (20) and the second tank (30) is completely replaced with a water layer. One training mode may be maintained until the first tank 20 and the second tank 30 are filled with raw water.

However, as one embodiment, the amount of raw water supplied in one training mode may be variously controlled.

In the step (c), the flow path switching valve module 100 is operated in the regeneration outgoing mode to discharge the raw water stored in the first tank 20 and the second tank 30 (d) Can be performed.

In this process, raw water injected for agitation is discharged to the outside, and then step (c) and step (d) may be repeated continuously. That is, the training mode and the regeneration heading mode are repeatedly switched so that the ion-exchange resin (P 2 ) is agitated in a predetermined cycle.

The amount of the raw water supplied in the step (c) during the course of repeating steps (c) and (d) may vary depending on the total volume of the first tank (20) and the second tank (30) Can be controlled to be less than the remaining volume minus the volume of the resin (P 2 ). The reason for doing this is to replace the air layer (a) and the water layer between the ion exchange resins (P 2 ) at frequent intervals.

At this time, the duration of the step (c) and the step (d) may be variously set. That is, the steps (c) and (d) may be performed for the same time, but may be performed for different times or may be performed with an irregular pattern time.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

10: regeneration tank 20: first tank
22a: first outlet 22b: first outlet
30: second tank 32a: second outlet
32b: second inlet port 100: flow path switching valve module
110: valve frame 120: drive motor
122a: first gear 122b: second gear
125: connection frame 130: rotation guide
140: rotating plate 150: fixed plate
P 1 : Regenerant P 2 : Ion exchange resin
W 1 : enemy W 2 : reproduction number
a: air layer

Claims (6)

A regeneration tank containing a regenerant therein; A first tank and a second tank connected to the regeneration tank and containing an ion exchange resin therein; And a flow path switching valve module including a rotating plate and a fixing plate for changing a flow path of water between the regeneration tank, the first tank and the second tank according to a relative rotation angle. The method comprising the steps of:
(A) operating the channel switching valve module in the regeneration intake mode to replenish the raw water in the regeneration tank;
(B) operating the channel switching valve module in a regeneration / outflow mode to discharge regenerated water stored in the regeneration tank to the outside via the first tank and the second tank; And
The flow path switching valve module is operated in the training mode to supply the raw water to the first tank and the second tank and to replace the air layer formed between the ion exchange resin in the first tank and the second tank with the water layer (C) stirring the ion exchange resin;
Wherein the ion exchange resin agitating method comprises the steps of: The method according to claim 1,
The step (c)
And the air layer in the first tank and the second tank is continuously changed into a water layer. The method according to claim 1,
After the step (c)
Further comprising the step of: (d) operating the flow path switching valve module in the regeneration outgoing mode to discharge the raw water contained in the first tank and the second tank. The method of claim 3,
(E) repeating the step (c) and the step (d). 5. The method of claim 4,
The step (c)
Wherein the supply amount of the raw water is controlled to be less than the remaining volume by subtracting the volume of the ion exchange resin from the total volume of the first tank and the second tank. 5. The method of claim 4,
Wherein the step (c) and the step (d) are performed for the same period of time.
KR1020150145282A 2015-10-19 2015-10-19 Agitation Method of Ion Exchange Resin of Softener Using Flow Switching Valve Module KR101813646B1 (en)

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KR1020150145282A KR101813646B1 (en) 2015-10-19 2015-10-19 Agitation Method of Ion Exchange Resin of Softener Using Flow Switching Valve Module

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KR101813646B1 KR101813646B1 (en) 2018-01-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190024353A (en) * 2017-08-31 2019-03-08 코웨이 주식회사 Water Softeners

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190024353A (en) * 2017-08-31 2019-03-08 코웨이 주식회사 Water Softeners

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