KR200363663Y1 - Water softner - Google Patents

Abstract

The present invention relates to a water softener, and its purpose is to remove chlorine, suspended matter, microorganisms, and ionization and antibacterial properties in tap water through pre- and post-treatment filters in addition to the basic soft water function that converts hard water into soft water. It provides a structure that can be conveniently regenerated at the time, and the coupling structure of each component of the water softener is made of a structure that can be easily detached and provides a water softener having a complex function of informing the exact time of regeneration of the filter through a flow sensor. .

The constitution of the present invention is a water softener composed of means for converting the feed water into soft water by using a cation exchange resin and discharging the same, which is configured in a double pipe form, and a filter case 224 is installed at an inner lower part thereof, and an upper and lower parts thereof have an open structure. Resin barrel (2) filled with a cation exchange resin consisting of; A pretreatment filter (1) filled with a filter media inserted into and coupled to a filter case (224) installed in the lower opening of the resin container (2); A post-treatment filter (3) coupled to the upper opening of the resin container (2) and equipped with a flow sensor for measuring the flow rate of the soft water filled and discharged by the filter media; A display device (8) for informing the filter replacement time according to the signal of the flow sensor; The technical feature is that the power supply device 5 using a battery for applying power to the flow sensor and the display device.

Description

Water softener {Water softner}

The present invention relates to a water softener, and more particularly, to have chlorine, suspended matter, microorganism removal and ionization and antibacterial properties in tap water, in addition to the basic soft water function of converting hard water into soft water. It provides a structure that can be conveniently regenerated at the time of regeneration, and the coupling structure of each component of the water softener is made of a structure that is easy to detach and a water softener having a complex function of informing the exact time of regeneration of the filter through a flow sensor. .

In general, tap water is purified water, but heavy water components such as mercury, lead, zinc, chromium, and magnesium, and hard water containing various impurities may not be easily released and adversely affect the skin.

Therefore, by removing heavy metals contained in tap water, soft water that does not harm the skin, that is, soft water, can be used to obtain good water for the human body. A softener is a device that converts hard water into soft water by adsorption and removal of various heavy metal substances and impurities using ion exchange resin.

The basic configuration of the water softener as described above is a known technique, and the application based on the known basic configuration is continuously made. For example, the basic configuration of the water softener is mainly installed in the bathroom, and a pair of soft water tanks are connected to hot water pipes and cold water pipes, respectively, to convert cold and hot water into soft water, and then mixed with a suitable temperature through a faucet or discharged. It is configured to be discharged through the shower. On the other hand, the ion exchange resin filled in the soft water tank absorbs the ionized impurities from the hard water introduced into the soft water tank and instead converts the hard water into soft water by releasing sodium ions. At this time, when the ion exchange resin is used for a long time, it cannot function properly due to impurities adsorbed from hard water on its surface. Therefore, in order to clean (regenerate) the ion exchange resin, a certain amount of salt (purified salt) is added to the soft water tank, and then the soft water tank is shaken to react the salt and the ion exchange resin to remove impurities attached to the surface of the ion exchange resin. After regenerating or putting a certain amount of salt (purified salt) into the soft water tank, supplying tap water or ground water into the soft water tank to clean (regenerate) the ion exchange resin, and discharge it to the outside of the soft water tank with impurities to clean the ion exchange resin. It has a configuration that completes the (playback) operation.

However, the basic configuration of the water softener as described above can not have a high quality soft water and regeneration process, there is no inconvenience in the installation, there is no configuration to filter the suspended matter and microorganisms remaining in the raw water to solve this problem. Various water softener related applications are continuously made.

In other words, to remove suspended solids and microorganisms in high quality raw water, various kinds of filters (composite pretreatment filter, TRC filter, zeolite filter) are used for filtering and cold water and raw water for convenient installation of water softener device. It is a situation that has been applied to grant a function that can conveniently adjust the coupling position with the water pipe, and to provide a device and supply path for the supply of salt (refined salt) for the convenience of the regeneration process.

However, the previous applications to improve the above problems are also poor sterilization and antimicrobial function contained in the raw water, poor filtering function of colloidal contaminants in the water, anion release and far infrared radiation effect is reduced, replacement time of the consumable filter Economical problem due to the early replacement of the filter or lack of filter function due to the automatic replacement of the filter, water softener quality problems due to the use of the filter, complex salt (refined salt) supply structure for the regeneration of the cation resin, supply of raw water Even though this is mainly top-down or bottom-up, the structure of maximizing the ion exchange capacity of the cation exchange resin is inadequate, and a separate faucet or shower is required when installing the water softener. It is only a partial improvement for the improving the overall quality of the water softener. The disadvantage is that the quality of the last discharged water is not good because it is not an organic complex improvement.

The purpose of the present invention for solving the above problems is to remove the chlorine, suspended matter, microorganisms in the tap water and ionization and antibacterial through the pre- and post-treatment filter in addition to the basic soft water function to change the hard water to soft water, cation exchange resin It provides a structure that can be conveniently regenerated at the time of regeneration, and the coupling structure of each component of the water softener is made of a structure that is easy to detach and provides a water softener having a complex function of informing the correct time of regeneration of the filter through a flow sensor. It is.

1a is an overall assembly view according to the present invention,

Figure 1b is a top plan cross-sectional view of the water softener and the mounting structure of the wall according to the present invention,

Figure 2a is an exploded view of the main part according to the present invention,

2b is an assembly view of the main part according to the present invention,

3a is an exploded view of a pretreatment filter according to the present invention,

3b is an assembly view of another pretreatment filter according to the present invention,

Figure 4a is an exploded view of the resin container according to the present invention,

Figure 4b is an assembly view of the resin container according to the present invention,

Figure 5a is an exploded view of the post-treatment filter according to the present invention,

5b is an assembled view of the post-treatment filter according to the present invention,

Figure 6 is an exploded view of the faucet valve (left, right) according to the present invention,

Figure 7 is a block diagram showing a schematic circuit configuration between the subject innovation flow sensor and the display device.

<Description of the symbols for the main parts of the drawings>

(1): pretreatment filter (2): resin container

(3): after-treatment filter (4): faucet valve

(5): power supply (6): caseback

(7): Case front (8): Display device

(224): Filter case

The present invention to achieve the object as described above and to perform the problem to remove the conventional defects in the water softener composed of means for converting the feed water to soft water by using a cation exchange resin and discharged, in the form of a double pipe It is composed of a filter case (224) is installed in the inner lower portion and the upper and lower portion of the resin container (2) filled with a cation exchange resin made of an open structure; A pretreatment filter (1) filled with a filter media inserted into and coupled to a filter case (224) installed in the lower opening of the resin container (2); A post-treatment filter (3) coupled to the upper opening of the resin container (2) and equipped with a flow sensor for measuring the flow rate of the soft water filled and discharged by the filter media; A display device (8) for informing the filter replacement time according to the signal of the flow sensor; Characterized in that the power supply device 5 using a battery for applying power to the flow sensor and the display device.

Hereinafter, the configuration and the operation of the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1a is an overall assembly according to the present invention, Figure 1b is a top plan cross-sectional view of the water softener according to the present invention and the mounting structure of the wall, Figure 2a is an exploded view of the main part according to the present invention, Figure 2b according to the present invention The assembly of the main portion is shown, as shown in the softener configuration of the present invention comprises a resin container (2) filled with a cation exchange resin for softening the feed water is a general configuration constituting the softener; A water supply faucet connection lake 441 for supplying hot water and cold water to the resin container; It can be seen that the pipe is configured to discharge the soft water through the resin container.

More specifically, the configuration of the present application will be described.

The present application is provided with two resin bottles (2) made of hot water and cold water, and is composed of a case back (6) and a case front (7) surrounding the outside of the resin container.

That is, two resin barrels are positioned and fixed inside the case back 6, and the case front 7 covers and protects them.

Resin barrel (2) is configured in the form of a double pipe filter case 224 is installed on the lower inside, the upper and lower parts are made of an open structure.

The pretreatment filter 1 is inserted into the filter case 224 installed in the lower opening portion of the resin container 2, and the water supply connection hose for supplying tap water, which is raw water, is inserted into the pretreatment filter 1. 441) is combined.

In addition, a post treatment filter 3 is coupled to the upper opening of the resin container 2, and a pipe 336 for discharging water converted into soft water is coupled to the upper portion of the post treatment filter 3.

In addition, a lower portion inside the case back 6 includes a power supply 5 that uses a temperature sensor, a flow sensor, and a battery for supplying power for operation of the display device.

In addition, the case front (7) is provided with a display device (8) informing the replacement time of the filter.

In addition, the case back 6 has a fixed plate 61 is installed and assembled in the rear portion, as shown in Figure 1b fixed to the wall fixing plate 62 fixed to the wall fixed plate 61 vertically coupled from the top to the bottom fixed Configured to be supported.

3A is an exploded view of a pretreatment filter according to the present invention, and FIG. 3B shows an assembly view of another pretreatment filter according to the present invention. The detailed configuration of the pretreatment filter 1 is a filter in which upper and lower parts are opened and a filter media is filled. A body 111;

An upper filter net plug 113 provided with an upper filter mesh net 112 coupled to block an opening of the filter body;

A filter cover 116 having an upper end surface protruded to form a portion fitted into the lower opening surface of the filter body 111 and having an inner central portion vertically perforated and having a thread formed on an outer circumference thereof;

A lower filter net march 115 having a lower filter mesh net 114 coupled to an upper opening of the filter cover;

A screw thread is formed on the inner side to be screwed with a screw thread formed on the outer circumference of the filter cover 116, and a handle flange having an insertion protrusion 1171 having a protruding portion to be fitted into the groove of the lower resin container cap on the outer circumference thereof. 117;

A handle 118 having an upper portion opened so that the lower portion of the handle flange 117 is fitted inward, and having a lowered perforated opening having a step smaller than that of the upper portion;

The handle 118 has a circumferential shape of a concave-convex shape to be inserted into and coupled to an opening formed at a lower stepped portion of the handle 118, and includes a handle adapter 119 having a perforated interior.

The upper filter mesh stopper 113 provided with the upper filter mesh net 112 is inserted into a groove formed in the upper portion of the filter body.

The handle flange 117 has a groove formed around the upper portion thereof so that the filter O-ring 120 is fitted, and the inner central portion has a groove having a different radius on the same plane so that the first handle flange O ring 121 has a large radius. ) Is fitted, and the second handle flange o-ring 122 is fitted into the groove having a small radius.

A water supply faucet connection 441 for supplying raw water is coupled to the lower side of the handle adapter 119.

The material of the filter body 111 may be formed of resin or metals, but preferably, the weight of the filter body 111 may be reduced by downward processing by resin.

In addition, the filter body 111 usually uses a filter body for filling a filter media, and uses a regeneration filter body 111 filled with salt for regenerating a cation exchange resin during regeneration. The shapes of the two filter bodies are identical and only differ in the filling contents. However, it is preferable for the quality of soft water to use separate filter bodies rather than alternately filling two types of fillers in one filter body.

The filter media filled in the filter body 111 of the pretreatment filter is composed of activated carbon and silver activated carbon. The volume is composed of 90 vol% of activated carbon and 10 vol% of silver activated carbon. By filling the media like this, residual chlorine remaining in the raw water is removed, and micro silver ions are released to play a role of suppressing the incubation of microorganisms that can inhabit in the resin.

The reason for the numerical limitation above is that when the value of the silver activated carbon is lower than the above, the ability of microorganisms to inhibit the growth of microorganisms due to the release of fine silver ions is lowered.

Figure 4a is an exploded view of the resin container according to the present invention, Figure 4b shows an assembly view of the resin container according to the present invention, the resin container (2) is filled with a cylindrical cation exchange resin of the top and bottom open A resin barrel body 221;

An upper resin container cap 222 welded to the upper opening of the resin barrel body 221 and inserted into and coupled to the aftertreatment filter 3;

A lower resin container cap 223 welded to the lower opening of the resin barrel body 221 and inserted into and coupled to the pretreatment filter 1;

The filter case 224 is coupled to the upper portion of the lower resin cap 223 is inserted into the filter body 111 of the pretreatment filter.

The upper resin cap 222 has a lower portion is completely open, the upper plane is formed in a structure that is open only to the central portion, the central portion of the opening is bent in the lower vertical direction protruding, the thread (2221) inside the It is formed and configured to be screwed with the post-treatment filter.

The lower resin container cap 223 is formed in a structure in which the upper part is completely open and the lower part is opened only at the center part, and the opening part at the center part is formed with a slide block 2231 penetrating both the upper and lower parts, and the lower side of the slide block. Is formed so that only a portion of the insertion protrusion 1171 of the pretreatment filter is inserted, thereby rotating the insertion protrusion 1171 inserted into the groove so that the pretreatment filter does not fall out, and the upper side of the slide block has a filter case ( 224 is coupled to the lower portion of the coupling means such as welding.

The filter case 224 has at least one through hole 2241 formed in the lower circumferential direction, and the through hole 2241 is blocked by a filter mesh cap 2243 having a filter mesh net 2242 to form a cation exchange resin. Configure to prevent the outflow.

As the through-hole 2241 is formed in the lower circumferential direction as described above, the flow path of the raw water supplied to the cation exchange resin flows upward from the bottom to maximize the ion exchange capacity of the cation resin.

The inner diameter of the filter case 224 is formed to have a larger radius than the filter body of the pretreatment filter, so that the raw water passing through the pretreatment filter changes the flow path downward.

In addition, the upper resin container cap 222 is formed in the upper surface of the groove is formed to have a radius larger than the screw thread 2221 is configured to insert the resin barrel cap ring (2222).

5A is an exploded view of the aftertreatment filter according to the present invention, and FIG. 5B illustrates an assembly view of the aftertreatment filter according to the present invention. As shown, the aftertreatment filter 3 has an open upper portion and an upper periphery. A thread 3311 is formed at the portion, and a plurality of perforations 3312 are formed at the circumference except for the upper portion, and the post-processing filter body 331 is filled with the media for filtering;

A post-treatment filter cap 332 inserted into the upper portion of the post-treatment filter and perforated with a plurality of holes 3321 smaller than the media to prevent the outflow of the filter media;

A filter net plug 334 having a filter mesh net 333 fitted into a circular groove 3322 formed at an upper portion of the post-treatment filter cap;

The lower part is opened to be coupled to the aftertreatment filter body 331, and the upper part is formed with a cylindrical tube 3354 having a smaller radius than the lower part to be coupled to the pipe 336 through which soft water is discharged. A sensor body 335 having a temperature sensor mounting hole 3355 protruding at right angles to a through hole formed at one side of the clearance tube and a flow sensor 3356 formed at a groove formed at one side of the cylindrical tube;

One side of the sensor body 335 is fitted with a pipe nut (3362) is fitted to be in contact with the upper portion of the cylindrical tube (3354) and the screw thread (335), the other side is coupled to the pipe flange (337) discharge faucet connection A pipe 336 coupled with the lake 442;

It is composed of a pipe O-ring (3361) located between the upper portion of the cylindrical tube (3354) of the sensor body 335 and the pipe (336).

A thread is formed around the lower portion of the pipe flange 337 to be coupled to the faucet connection lake.

The flow sensor 3356 is configured to measure the rotation of the impeller 3357 installed where the soft water of the sensor body 335 passes.

Specifically, the flow sensor uses a non-contact sensor, in particular an infrared sensor, detects the number of revolutions by approaching the tip of the rotor blades within the sensing range and detects the number of rotations and prints the detected contents on the PCB (printing). It is sent to a detection signal accumulator (not shown) constructed in a circuit in the circuit board-81 for counting. The cumulative part calculates the number of liters of the output part corresponding to the number of revolutions of the impeller and connects it to the display elements (LCD, LED, bulb-82) of the display device in five steps. A device, a display element corresponding to 8000 liters, a display element corresponding to 12000 liters, a display element corresponding to 16000 liters, and a display element corresponding to 20000 liters or more are turned on. In particular, the display element corresponding to more than 20000 liters is configured to blink.

The sensor body 335 has a screw thread 3331 coupled to a screw thread 3311 formed around the post-processing filter body 331 is formed in the lower inner diameter portion, the lower outer diameter portion of the thread of the upper resin container cap 222 ( A screw thread 3332 is formed to be coupled to the 2221, and a stopper 3353 is formed to protrude to have a radius larger than that of the resin barrel cap O-ring 2222 inserted into the upper resin cap 222 in the center circumferential direction thereof. A thread 3357 is formed around the upper portion of the cylindrical tube 3354 to be coupled with the pipe nut.

The post-treatment filter body 331 is filled with antibacterial ceramic balls in the lower portion, the upper is made of a structure in which tourmaline (tourmaline) is laminated. Due to the charging of the media, microcurrents and far infrared rays are radiated, and secondary microorganisms can be removed through the antibacterial ceramic balls.

A temperature sensor (not shown) is selectively installed at the temperature sensor mounting opening 3355, and when the temperature sensor is not mounted, a hole is blocked by the temperature sensor cap 3358.

A temperature sensor (not shown) is selectively installed at the temperature sensor mounting opening 3355, and when the temperature sensor is not mounted, a hole is blocked by the temperature sensor cap 3358.

The temperature sensor measures the actual temperature of the soft water being discharged and sends a signal to the PCB so that it is displayed on the display device.The temperature of the hot and cold water is displayed on the display device connected to it so that the user can refer to it to discharge the soft water of the appropriate temperature. To regulate the hot and cold water valves.

Figure 6 shows an exploded view of the faucet valve (left, right) according to the present invention, the faucet valve 4 as shown,

A faucet connection hose 441 for supplying raw water;

A discharge faucet connection hose 442 for discharging soft water;

Each of the pipes 4431 and 4432 coupled to the water supply faucet connection hose 441 and the discharge faucet connection hose 442 for discharge is formed, and at the bottom, a pressure drop for relieving the vacuum in the water softener during regeneration. A water flow valve body 443 formed with pipes 4333 and 4434 on which the drain plug O-ring 444 and the drain plug 445 are mounted, and the final outlet 4344 formed at right angles in the center thereof;

One direction of the water flow body is provided with a water flow control valve 446 for controlling the flow of the flow to match the raw water, soft water and regeneration.

The final water outlet 4435 is equipped with a conventional water valve to adjust the flow rate.

The water supply faucet connection hose 441 is a water supply faucet connection hose for supplying raw water (cold water, hot water) to the resin container through a pretreatment filter, and the faucet connection hose for discharge 442 is a pipe passing through the post treatment filter; Faucet connection hose for soft water discharge.

The faucet connection hoses are all composed of flexible corrugated pipes, and thus the flow path is freely formed.

7 is a block diagram showing a schematic circuit configuration between the present invention flow sensor and the display device, showing a non-contact connection between the flow sensor and the impeller, showing that the signal of the flow sensor is connected to the display device, and also the display device Shows briefly that it is connected to a power supply.

Hereinafter will be described the operation of the training process and the filtering process of the present invention.

First, when the raw water of the present invention is supplied to the pretreatment filter from the bottom to the upper flow path through the water supply valve hose for water supply, the chlorine and suspended solids of the raw water are removed by the activated carbon and silver activated carbon filled in the filter body of the pretreatment filter, and microorganisms are removed. After sterilization, it is discharged through the upper filter mesh net, and then the flow path is changed downward by the filter case of the discharged resin container and then flows out to the lower part of the resin container through the through hole formed in the lower part of the filter case. The raw water flowing out from the bottom of the barrel moves from the lower part to the upper part, and is absorbed by calcium, magnesium, etc. in the raw water by the cation exchange resin filled in the resin container, thereby converting the hard water into soft water. After that, the soft water flows back to the hole of the upper resin cap formed in the upper part of the resin container, and passes through the post-treatment filter installed therein. Finally, the soft water is ionized by the antibacterial ceramic ball and tourmaline (tourmaline), The branches are converted to water and then discharged.

Among the filters constituting the present invention, the antibacterial ceramic ball does not need to be replaced with a permanent filter, and activated carbon and silver activated carbon are consumables, and 20,000 liters of soft water is discharged by detecting the flow rate of the flow sensor for producing high quality soft water. When it is detected, it is configured to blink the display device to notify the replacement time.

That is, as described above, the flow sensor uses a non-contact sensor, in particular an infrared sensor, detects the rotational speed of the impeller as it approaches the tip of the rotating blade within the sensing range, detects the rotational speed, and uses the detected content to configure the display device. The signal is sent to a detection signal accumulator (not shown) having a circuit in the printed circuit board 81 for counting. In this accumulating part, the output part liters corresponding to the number of revolutions of the impeller is calculated and connected to the display device 82 of the display device having five stages, thereby corresponding to the display device corresponding to 4000 liters and 8000 liters according to the number of revolutions. The display element, the display element corresponding to 12000 liters, the display element corresponding to 16000 liters, and the display element corresponding to 20000 liters or more are turned on. In particular, the display element corresponding to more than 20000 liters is configured to blink.

Below is a description of the operation related to the regeneration of the cation exchange resin of the present invention.

To regenerate the cation exchange resin, the filter body containing the refined salt is mounted on the handle flange, and then inserted into the filter case. Then, when the tap water flows into the filter body, the salt is dissolved and the cation exchange resin contacts with the chemical. Instead of removing the metal ions that were bound to the cation exchange resin, the reaction occurs, so that the sodium ions are bonded to the cation exchange resin, thereby regenerating and continuing to use the ion exchange resin repeatedly. In addition, impurities generated during the regeneration of the ion exchange resin are discharged to the outside through the hot and cold soft water outlet, and at this time, the cation exchange resin is prevented from flowing to the outside by the filter network formed at the top of the resin container, thereby recharging the cation exchange resin without recharging. It becomes usable.

As described above, it is possible to conveniently control the concentration of salt by using a filter body that enters the quantification during regeneration.

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention removes various microorganisms in the water by using the oligodynamic effect of silver activated carbon constituting the pretreatment filter by using the pretreatment filter and the post-treatment filter. It has the advantage of having sterilization and antibacterial function to remove bacteria by using secondary,

It has the advantage of filtration function of colloidal contaminants in water that solves the problem of odor and turbidity by removing colloidal suspended solids in water by using activated carbon and activated carbon impregnated nonwoven fabric constituting pretreatment filter.

By adopting tourmaline (tourmaline) in the post-treatment filter, infinite anion and far infrared ray are emitted, and it has the advantages of anion emission and far infrared radiation effect which have the ideal softening process closest to the skin,

The scientific calculation of the accurate flow meter automatically informs you when the filter is being replaced,

In order to maximize the ion exchange capacity of the cation exchange resin, the bottom-up water softening method has the structure of passing water from bottom to top.

The advantage of having a water channel control function that can use the existing faucet or shower without the need for a separate faucet or shower,

It is a design that is expected to be used greatly in the industry as a useful design that has the advantage of having a convenient structure of the removable device of the water softener.

Claims (10)

In the water softener comprising a means for converting the feed water into soft water by using a cation exchange resin and discharge the converted soft water, It is configured in the form of a double pipe filter case 224 is installed on the lower inside and the upper and lower portion is filled with a cation exchange resin made of an open structure (2); A pretreatment filter (1) filled with a filter media inserted into and coupled to a filter case (224) installed in the lower opening of the resin container (2); A post-treatment filter (3) coupled to the upper opening of the resin container (2) and equipped with a flow sensor for measuring the flow rate of the soft water filled and discharged by the filter media; A display device (8) for informing the filter replacement time according to the signal of the flow sensor; Water softener, characterized in that consisting of a power supply (5) using a battery for applying power to the flow sensor and the display device. The method of claim 1, A water softener, characterized in that the lower portion of the pretreatment filter (1) is coupled to a flexible water supply connection hose (441) for supplying raw water, and the pipe (336) for discharging the water converted into soft water is coupled to the upper portion. The method of claim 1, And a case front (6) in which the two resin barrels are fixedly coupled therein, and a case front (7) covering the case back and a display device (8) formed at the front thereof. The method of claim 3, wherein A water softener, characterized in that the fixing plate (61) is installed and assembled on the rear surface of the case back (6) so as to be vertically coupled from the top to the bottom fixing plate (62) fixed to the corresponding wall. The method of claim 1, The filter media filled in the pretreatment filter (1) is a mixture of activated carbon and silver activated carbon, the composition ratio of which is composed of 90 vol% activated carbon and 10 vol% silver activated carbon by volume ratio. The method of claim 1, The filter media which is filled in the post-treatment filter (1) is a water softener characterized in that the bottom is filled with antibacterial ceramic balls, the tourmaline (tourmaline) is stacked on the top. The method of claim 1, The pretreatment filter (1) is equipped with a removable filter body 111 is equipped with a filter body 111 is filled with filter media at the time of training, the filter body 111 is filled with salt is filled during the regeneration of cation exchange resin Water softener, characterized in that. The method of claim 1, The flow sensor measures the rotation of the impeller (3359) installed in the after-treatment filter in a non-contact manner to turn on each display element corresponding to the set liter number, and if the discharge of soft water is 20,000 liters or more, the display element flashes to activate activated carbon and silver activated carbon. Water softener characterized in that the circuit configuration to inform the replacement time. The method of claim 1, The flow path structure of the raw water supplied to the cation exchange resin contained in the resin container is the raw water supplied from the bottom through the upper filter mesh network of the pretreatment filter, and then the flow path is changed back to the lower direction by the filter case of the resin container. A water softener characterized in that the device is configured to form a flow path flowing out to the lower part of the resin container through the through hole formed in the lower part and moving upward again. The method of claim 1. And a temperature sensor attached to the post-treatment filter (3) to measure the temperature of the soft water discharged and to display the information on the display device (8).