JP2005296844A - Water softener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform removal of hard water components in raw water including tap water, ground water or the like, and cleaning of the raw water before carrying out electrolysis for obtaining alkaline water and acidic water. <P>SOLUTION: In a water softener 1, the raw water fed from a water inlet 2 to a main body 3 is passed through a second filter 12 and electrolyzed between an anode member 8 and a cathode member 10 while using a first filter 6 as an electrolytic diaphragm, and the hard water components contained in the raw water can be stored in the second filter 12 and the meshed cathode member 10 adjacent to the second filter 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  In the present invention, before performing electrolysis to obtain alkaline water and acidic water from raw water including tap water or ground water, the raw water is subjected to water purification treatment and hard water components contained in the raw water are removed to remove the soft water from the raw water. TECHNICAL FIELD The present invention relates to a water softening device for reducing the temperature.

  A general electrolyzed water generating device is to clean water from raw water including tap water or groundwater once with activated carbon, etc., and then send it to an electrolytic cell, and is interposed between a cathode member and an anode member in the electrolytic cell. The electrolytic diaphragm is configured to separate and generate alkaline water and acidic water when electrolyzing raw water including tap water or groundwater by a voltage applied between both electrodes. Raw water, which is tap water or ground water including groundwater, is classified into soft water and hard water according to the content of components contained therein. In particular, hard water contains a large amount of ions such as sodium (Na), calcium (Ca), magnesium (Mg) and the like, and the hard water component is an unnecessary component for electrolysis and treatment. Therefore, the present condition is using a soft water treatment apparatus etc. as a countermeasure against this hard water component.

  FIG. 8 shows a conventional simple water softening device 300. In this simple water softening device 300, the lower portion of a cylindrical cylinder 90 is closed with a lower cap 120, and the ion exchange resin 60 is filled up to the top of the cylinder 90. A cylindrical sponge 70 is placed on the ion exchange resin 60, and a cap-shaped sponge 70 holding plate (not shown) having a water passage opening formed on the upper surface of the cylinder 90 is passed with the water opening side upward. 70 and cover with the upper cap 130. When the upper cap 130 is closed, the ion-exchange resin 60 is filled up to the top, so that the cylindrical sponge 70 is compressed in the length direction of the container (cylinder 90).

  In FIG. 8, the flow of the usage example of the conventional simple water softening apparatus 300 is shown. Even if the simple water softening device 300 is installed in an oblique direction in the water supply pipe 200 provided with the simple water softening device 300, the water supply tank 400, and the water supply pump 50 and connected to the boiler 100, a cylinder is formed in the simple water softening device 300. Since the sponge 70 is filled, the boundary of the ion exchange resin 60 portion is parallel to the opening surface of the cylinder 90, and the ion exchange resin 60 settles in a cylindrical shape. When the raw water passed from the sponge 70 side in the simple water softening device 300 passes through the cylindrical resin (ion exchange resin 60) layer, hardness components sodium (Na), calcium (Ca), magnesium (Mg) and Silica and the like are removed to form soft water, and water is supplied to the boiler 100 (see Patent Document 1).

JP 7-214054 (paragraphs 0007 to 0008, FIG. 4)

  However, with the simple filter type apparatus as described above, it is currently difficult to expect the effect of soft water treatment. In addition, it is common for soft water treatment equipment to treat raw water physicochemically using an ion exchange resin, to physically filter raw water, or to treat raw water by heat treatment. is there. However, in consideration of the processing capacity, the size of the apparatus, the running cost, etc., all of them are inevitably expensive.

  Moreover, in various electrolyzed water purification devices, the water purification unit plays a major role as a pretreatment, but the water purification unit of most electrolyzed water purification devices is a water purification unit based on activated carbon. The filter used has a limit of treatment capacity, and in particular, in the case of purified water with hard water, there are many phenomena such as the replacement time of the filter using activated carbon being advanced.

  The present invention has been made in view of the above circumstances, and has a function of removing ions such as Na, Ca and Mg, which are hard water components contained in raw water, and a function of purifying raw water. An object of the present invention is to provide a water softening device that functions as a pretreatment device for decomposition.

  In order to achieve the above object, the invention according to claim 1 is provided in a container, and is provided with a water inlet for guiding raw water, which is a liquid, into the container; and provided in the container; A water softening device comprising a water outlet for circulating the inside of the container and then guiding it to the outside of the container, so as to electrolyze the raw water supplied from the water inlet to the inside of the container. The electrode member is provided between the anode member and the cathode member, which are the electrode members, and is provided to allow the raw water supplied from the water inlet to pass through the first filter serving as an electrolytic diaphragm. And a second filter provided adjacent to the cathode member.

  Therefore, according to the first aspect of the present invention, when raw water including tap water or ground water is fed into the container from the water inlet, the raw water passes through the second filter, and the first filter serves as an electrolytic membrane. When the raw water is electrolyzed with the anode member, ions such as calcium, magnesium, sodium and silica, which are hard water components of the raw water, can be adsorbed on the cathode member side.

  The invention according to claim 2 is characterized in that, in addition to the structure according to claim 1, the second filter is in contact with the cathode member.

  Therefore, according to the invention described in claim 2, since the cathode member and the second filter are brought into contact with each other, calcium, magnesium, sodium, silica, and the like, which are hard water components sucked into the cathode member, are removed from the second filter. It can be adsorbed inside.

  Furthermore, the invention described in claim 3 is characterized in that, in addition to the structure described in claim 1 or 2, the second filter is carbon.

  Therefore, according to the invention described in claim 3, when the second filter is made of carbon, when the raw water is electrolyzed with the cathode member and the anode member, the second filter also functions as a part of the cathode member. It is possible to electrically adsorb calcium, magnesium, sodium, silica, etc., which are hard water components of raw water, into the second filter, and to purify water, which is removal of chalk, mold, etc. Is also possible.

  According to a fourth aspect of the present invention, in addition to the structure according to any one of the first to third aspects, the cathode member has a mesh shape.

  Therefore, according to the invention described in claim 4, since the cathode member has a mesh shape, the diameter is smaller than the mesh (holes which are gaps) provided in the mesh shape (mesh shape) of the cathode member. It is possible to adsorb calcium, magnesium, sodium, silica, and the like, which are hard water components, into the mesh (mesh) provided in the mesh (holes) of the cathode member.

  Furthermore, in addition to the structure in any one of Claims 1 thru | or 4, the invention of Claim 5 is characterized by the said 1st filter being a nonwoven fabric.

  Therefore, according to the fifth aspect of the invention, since the nonwoven fabric is used for the first filter which is the electrolytic diaphragm, it is possible to suppress the change in the pressure loss of the discharged water from the input of the raw water, and the raw water is electrically When decomposed, metal ions and the like can be easily moved, and processing is easier than other materials, and the manufacturing cost can be further reduced.

  According to a sixth aspect of the present invention, in addition to the configuration according to any of the first to fifth aspects, the electrode member has a cylindrical shape, and one of the anode member and the cathode member is the other. The outer diameters are different from each other so that they can be stored.

  Therefore, according to the invention described in claim 6, the anode member and the cathode member, which are electrode members, are formed in a cylindrical shape with each other so that one of them accommodates the other to form a double structure. Therefore, it is possible to freely select the length and size (diameter) of the electrode member.

  Furthermore, in the invention described in claim 7, in addition to the structure described in any one of claims 1 to 5, the electrode member has a flat plate shape, and the anode member and the cathode member are in positions facing each other. It is characterized by that.

  Therefore, according to the seventh aspect of the invention, since the electrode member has a flat plate shape, it is possible to uniformly perform the surface treatment such as plating on the electrode member.

  Moreover, in addition to the structure in any one of Claim 1 thru | or 7, the invention of Claim 8 is for connecting the said containers to the said water inlet provided in the said container, and the said water discharge port. It is possible to attach a connecting pipe.

  Therefore, according to the eighth aspect of the present invention, the connection of the water softening devices can be achieved by connecting the containers to each other by attaching the connection pipes to the water intake pipe and the water discharge pipe of the container. The water softening device can be made larger and smaller depending on the amount of raw water.

  According to the present invention, a filter is sandwiched between a cathode member and an anode member to perform electrolysis for pretreatment, and the chlorine contained in raw water such as tap water by the filtration function of the second filter and the cathode member, Calcium water (Ca), magnesium (Mg), sodium (Na), silica, etc. that are hard water components can be forcedly applied to the cathode member and the second filter on the cathode side while being able to perform water purification treatment for removing mold odors, etc. The hard water component can be easily removed from the raw water by adsorbing each ion (hard water component).

  Further, the water softening device according to the present invention only uses an anode member, a cathode member, and a plurality of filters in the container, so that the entire device can be reduced in size and weight, and can be used for various water conditioners. The water softening device according to the present invention can also be incorporated.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Example 1)
In FIG. 1, the outline of the water softening apparatus 1 which is this invention is shown. Although the shape of the water softening device 1 shown in this example is cylindrical, it is not particularly limited to a cylindrical shape. A water inlet 2 and a water outlet 4 are provided in the main body 3 of the water softening device 1 that has the shape of a container. The water inlet 2 is an inlet for introducing raw water including tap water or ground water into the main body 3 that is a container, and the water outlet 4 circulates in the main body 3 within the main body 3 that is a container. Then, after the raw water is treated, the treated raw water is an outlet for guiding the treated raw water from the main body 3 to the outside of the main body 3.

  A plurality of anode members 8 are provided along the inner wall 3 c in the main body 3. The anode member 8 in this example has a rod-like (plate-like) shape, and the plate-like (rod-like) anode member 8 is attached along the inner wall in the main body 3. An anode terminal 8a extends from one end portion of the anode member 8, and protrudes from one end surface 3b of the main body 3 serving as a container. In this example, a plate-shaped member is used as the anode member 8, but it is also possible to use a cylindrical anode member 8 similar to the main body 3 which is a container. When the cylindrical anode member 8 is used, the cylindrical anode member 8 is incorporated along the inner wall 3c of the main body 3 serving as a container. Therefore, the plurality of plate-like anode members 8 can be easily attached as compared with the case where they are attached to the inner wall 3 c in the main body 3.

  A first filter 6 is disposed in the center of the main body 3, and the first filter 6 is supported by a support member 14 provided on the end surface 3 a of the main body 3. Thus, it is possible to support by the end surfaces 3a and 3b of the main body, without being limited to the support at one place. The 1st filter 6 is a nonwoven fabric, and it becomes possible to suppress the change of the pressure loss of the discharged water from incoming raw water. Moreover, when raw water is electrolyzed by using a non-woven fabric, it becomes possible to facilitate the movement of metal ions, etc. Furthermore, the non-woven fabric is easier to process than other materials and can reduce the manufacturing cost. It is possible.

  A plurality of cathode members 10 are provided adjacent to the first filter 6. The cathode member 10 is the same as the anode member 8, and has a rod-like (plate-like) shape. Similarly to the anode member 8, the cathode member 10 also has a cathode terminal 10 a extending from one end portion of the cathode member 10, and protrudes from one end face 3 b of the main body portion 3 that is a container. In this example, a rod-like (plate-like) shape is used as the cathode member 10, but similarly to the anode member 8, the cathode member 10 having a cylindrical shape similar to the main body 3 that is a container is used. It is also possible. The plurality of cathode members 10 are made of a titanium material. The cathode member 10 is not provided with a mesh (mesh) mesh (holes as gaps). However, the negative electrode member 10 may have a mesh shape (mesh shape) and may be provided with a large number of meshes (holes that are gaps).

  In this example, the plurality of cathode members 10 are housed in the second filter 12. The second filter 12 is made of carbon, has a mesh shape (mesh shape), and is provided with a number of meshes (holes that are gaps). By using carbon in this way, the second filter 12 can also act as a part of the cathode member 10 when electrolysis is performed. In particular, in this example, the second filter 12 and the cathode member 10 are disposed so as to contact each other. Therefore, it is possible to adsorb each ion such as calcium, magnesium, sodium and silica which are hard water components that are electrochemically positive ions by sharing carbon with the cathode member 10 and charging the carbon negatively. become.

  Further, below the second filter 12, water purification filters 16 and 18 are provided, and a calcium nitrite layer for adsorbing chlorine contained in tap water is provided between the water purification filters 16 and 18. ing. Further, the support member 14 above the second filter 12 is filled with a calcium additive.

  Next, the operation of the water softening device 1 having the above configuration will be described. First, raw water including tap water or groundwater is supplied to the water inlet 2 of the water softening device 1. The raw water supplied to the water inlet 2 passes through the water inlet 2 and enters the water purification filter 16 (in the direction of arrow A shown in FIG. 2). In this part, the water purification process is performed for the wastes contained in the raw water, and the physical filtration of the raw water is performed. The raw water that has passed through the water purification filter 16 enters the calcium nitrite layer 20. The raw water that has entered the calcium nitrite layer 20 is absorbed with chlorine contained in the raw water and enters the water purification filter 18, and is subjected to physical filtration in the same manner as the first water purification filter 16.

  And since raw | natural water continues being supplied from the water inlet 2, raw | natural water flows in the inside of the 2nd filter 12 along the arrow A direction shown in FIG. At this time, a voltage is applied to the cathode terminal 10a and the anode terminal 8a from a power source (not shown), and a voltage is applied to the cathode member 10 and the anode member 8. Then, when the raw water flows through the second filter 12 in the direction of arrow A shown in FIG. 2, the raw water is electrolyzed by the anode member 8 and the cathode member 10 using the first filter 6 as an electrolytic diaphragm. Therefore, the raw water portion (acidic water) flowing toward the anode member 8 side and the raw water portion (alkaline water) flowing toward the cathode member 10 side are separated along the arrow B direction shown in FIG.

  In this way, when electrolysis is performed on the raw water by the anode member 8 and the cathode member 10 using the first filter 6 as an electrolytic diaphragm, the second filter 12 in which the cathode member 10 is housed is the cathode member. Since it is in contact with 10, it is negatively charged. Further, calcium, magnesium, sodium, silica and the like, which are hard water components present in the raw water, are positive ions. Therefore, calcium, magnesium, sodium, silica, and the like, which are hard water components, are electrically adsorbed on the cathode member 10 or the second filter 12.

  A specific principle will be described with reference to FIG. When the raw water is supplied into the second filter 12, the pore size (mesh shape) provided in the mesh (mesh shape) of the second filter 12 among the hard water components calcium, magnesium, sodium, silica, etc. present in the raw water ( Larger diameters remain in the second filter 12. Of the hard water components calcium, magnesium, sodium, and silica that are present in the raw water, those having a diameter smaller than the pore diameter provided in the mesh shape of the second filter 12 are physically It will slip through the holes of the second filter 12 and the gaps between adjacent cathode members 10.

  However, since the cathode member 10 and the second filter 12 are negatively charged, calcium, magnesium, sodium, silica, and the like, which are hard water components present in the raw water that is positive ions, are transferred to the cathode member 10 and the second filter 12. Sucked.

  And even if it is smaller than the mesh (gap) provided in the mesh shape (mesh shape) of the second filter 12 among calcium, magnesium, sodium, silica, etc., which are hard water components present in the raw water, the second filter 12 is used. It is adsorbed in the mesh (gap) provided in the mesh shape (mesh shape) or on the cathode member 10. At the same time, the raw water passes through the second filter 12, so that the second filter 12 also removes the chlorine, mold odor and the like contained in the raw water, and the water purification treatment is also performed.

  In addition, the hard water component is filtered by removing the hard water components such as calcium, magnesium, sodium and silica from the raw water in the second filter 12 as described above, and at the same time, such as a salty and moldy odor contained in the raw water. When the water purification treatment is also performed, the calcium additive is added to the raw water from the support member.

  As described above, raw water from which hard water components such as calcium, magnesium, sodium, and silica are removed and water purification treatment that is removal of calcite, mold odor, and the like is performed, is performed along the direction of arrow B in FIG. Pass through the second filter 12. And the raw | natural water which passed through the 2nd filter 12 flows along the anode member 8 provided along the inner wall 3c in the main-body part 3 along the arrow C direction of FIG. Finally, as described above, hard water components such as calcium, magnesium, sodium, and silica are removed, and raw water that has been subjected to water purification treatment such as removal of chalk and musty odors is circulated in the main body 3. And it flows out from the water outlet 4 provided in the main-body part 3 as treated water shown in FIG.

(Example 2)
Next, another embodiment of the water softening device according to the present invention will be described. FIG. 4 shows another embodiment of the water softening device according to the present invention. This water softening device 21 is configured by combining cylindrical members. A container (case) 32 made of a thermoplastic resin, which is an ABS resin having a cylindrical shape, has a water inlet 32 a for guiding raw water to the inside of the container 32, and the raw water is circulated inside the container 32 and then the raw water is moved outside the container 32. A water outlet 32 b for guiding is provided on the end surface of the container 32.

  The anode member 30 and the cathode member 26 incorporated in the container 32 have a cylindrical shape and are set to have different outer diameters so that the anode member 30 can accommodate the cathode member 26. Specifically, as shown in FIG. 4, a cylindrical anode member 30 is incorporated in the container 32. In this example, a cylindrical anode member 30 having a cylindrical shape before being incorporated into the container 30 is used. However, the cylindrical anode member 30 does not need to have a cylindrical shape before being incorporated into the container 32, and may be a plate-like anode member 30 having a cylindrical shape by being incorporated into the container 32.

  A cylindrical cathode member 26 is incorporated in the cylindrical anode member 30. The cylindrical cathode member 26 is made of a titanium material and has a mesh shape (mesh shape), and is provided with a large number of meshes (holes as gaps). A first filter 28 is provided on the cylindrical cathode member 26 so as to cover the cylindrical cathode member 26.

  In the cylindrical cathode member 26, an inlet pipe 22 for guiding raw water into the cylindrical cathode member 26 (inside the container 30) is provided so as to be connected to the inlet 32a. Around the water intake pipe 22 in the cylindrical cathode member 26, granular or powdery activated carbon to be the second filter 24 is filled.

  With the above configuration, when raw water is supplied from the water inlet 32a to the container 32, and voltage is applied to the cylindrical anode member 30 and the cylindrical cathode member 26 from a power source (not shown), the raw water is cylindrical. The granular or powdery activated carbon that is the negative electrode member 26 and the second filter 24 removes calcium, magnesium, sodium, silica, and the like, which are hard water components, and water purification treatment that removes chalk, mold odor, and the like is also performed. It will flow out of the container 32 from the water discharge port 32b.

  More specifically, when electrolysis is performed on the raw water by the anode member 30 and the cathode member 26 using the first filter 6 as an electrolytic diaphragm, the second filter 24 in which the cathode member 26 is housed is the cathode member. Since it is in contact with 26, it is negatively charged. Further, calcium, magnesium, sodium, silica and the like, which are hard water components present in the raw water, are positive ions. Therefore, calcium, magnesium, sodium, silica, and the like, which are hard water components, are electrically adsorbed on the cathode member 26 or the second filter 24.

  A specific principle will be described with reference to FIG. The raw water is supplied into the second filter 24, and among the hard water components calcium, magnesium, sodium, and silica that are present in the raw water, the pore diameter of the second filter 24 and the mesh shape of the cathode member 26 are formed. A diameter larger than the provided mesh (gap) is accommodated in the second filter 24.

  And the diameter smaller than the hole diameter of the 2nd filter 24 and the mesh | network (mesh shape) provided in the mesh | network shape (mesh shape) of the cathode member 26 among calcium, magnesium, sodium, a silica etc. which are the hard water components which exist in raw | natural water. In general, the material passes through the holes (holes that are gaps) provided physically in the holes of the second filter 24 and the mesh (mesh) of the cathode member 26.

  However, since the cathode member 26 and the second filter 24 are negatively charged, calcium, magnesium, sodium, silica, and the like, which are hard water components present in the raw water that is positive ions, are transferred to the cathode member 26 and the second filter 24. Sucked.

  And the diameter smaller than the hole diameter of the 2nd filter 24 and the mesh | network (mesh shape) provided in the mesh | network shape (mesh shape) of the cathode member 26 among calcium, magnesium, sodium, a silica etc. which are the hard water components which exist in raw | natural water. For example, it is adsorbed in the mesh (gap) provided in the hole of the second filter 24 or the mesh (mesh) of the cathode member 26. At the same time, the raw water passes through the second filter 24, so that the second filter 24 also removes the chalk, mold odor and the like contained in the raw water, and the water purification process is also performed.

(Example 3)
Next, another embodiment of the water softening device according to the present invention will be described. FIG. 5 shows another embodiment of the water softening device according to the present invention. This water softening device 31 is configured by combining box-shaped members. A container (case) 44 made of a thermoplastic resin, which is an ABS resin having a box shape, includes a water inlet 44 a for guiding raw water to the inside of the container 44, and the raw water after being circulated through the container 44. A water outlet 44 b for guiding to the container 44 is provided on the end surface of the container 44.

  The anode member 42 and the cathode member 42 incorporated in the container 44 have a flat plate shape and are set so that the anode member 42 and the cathode member 24 face each other. In this example, the flat plate-like anode member 42 is provided at the center position of the container 44 as a partition plate that divides the inside of the container 44 into two (see FIG. 5). It is not necessary to provide the flat plate-like anode member 42 at a position where the inside of the container 44 is equally divided, and it is also possible to provide the flat plate-like anode member 42 at a position where one side is wide and the other side is narrow.

  On either side of the container 44, a container (case) 40 made of a thermoplastic resin which is an ABS resin having a box shape is incorporated. A hole 40a is provided on one side surface of the container 40 facing the flat plate-shaped anode member 42, and a flat plate-shaped non-woven fabric as the first filter 36 is attached to the hole 40a. A flat cathode member 34 is provided from the inside of the container 40 in contact with the flat nonwoven fabric as the first filter 36. The flat cathode member 26 is made of a titanium material and has a mesh shape (mesh shape), and is provided with a number of meshes (holes that are gaps).

And this container 40 is connected with the water intake pipe 44a of the container 44, and when raw | natural water is supplied from the water inlet 44a, raw | natural water will be supplied in the container 40. FIG.
The container 40 is filled with granular or powdery activated carbon that becomes the second filter 38 adjacent to the flat plate-shaped cathode member 26.

  With the above configuration, the water softening device 31 performs the same operation as the water softening devices 1 and 21 shown in Examples 1 and 2. That is, when raw water is supplied to the container 44 from the water inlet 44a and a voltage is applied to the flat plate-shaped anode member 42 and the flat plate-shaped cathode member 34 from a power source (not shown), the raw water is converted into a flat plate-shaped cathode member 34. And the granular or powdery activated carbon that is the second filter 38 removes calcium, magnesium, sodium, silica, etc., which are hard water components, and water purification treatment is also performed to remove chalk, mold odor, etc. It will flow out of the container 44 from 44b.

  Further, depending on the amount of raw water to be treated, the single water softening device 1, 21, 31 may not be able to cope with it sufficiently. In that case, the water softening devices 1, 21, 31 are connected. Specific connection of the water softening devices 21 and 31 will be described with reference to FIGS. 6 and 7. FIG. 6 shows the connection of the water softening device 21 incorporating the anode member 30 and the cathode member 26 having a cylindrical shape. The water outlet 32b of the container 32 of one water softening device 21a and the water inlet 32a of the container 32 of the other water softening device 21b shown in FIG.

  Further, a water inlet 32 a of the container 32 of one water softening device 21 a shown in FIG. 6 and a water outlet 32 b of the container 32 of the water softening device 21 (not shown) are connected by a connecting pipe 46. Further, the water outlet 32 b of the container 32 of the other water softening device 21 shown in FIG. 6 and the water inlet 32 a of the container 32 of the water softening device 21 (not shown) are connected by a connecting pipe 46. As described above, by connecting a plurality of containers 32 of the water softening device 21 using the connecting pipe 46, even if the amount of raw water to be treated is large, calcium, magnesium and sodium which are hard water components in a short time. In addition, it is possible to remove silica and the like, and to perform water purification treatment that is removal of chalk, mold odor and the like.

  Further, FIG. 7 shows the connection of the water softening device 31 using the anode member 42 and the cathode member 24 having a flat plate shape shown in FIG. The water outlet 44b of the container 44 of one water softening device 31a and the water inlet 44a of the container 44 of the other water softening device 31b shown in FIG.

  Further, the water inlet 44a of the container 44 of one water softening device 31a shown in FIG. 7 and the water outlet 44b of the container 44 of the water softening device 31b (not shown) are connected by a connecting pipe 48. Further, the water outlet 44 b of the container 44 of the other water softening device 31 b shown in FIG. 7 and the water inlet 44 a of the container 44 of the water softening device 31 (not shown) are connected by a connecting pipe 48. As described above, by connecting a plurality of containers 44 of the water softening device 31 using the connecting pipe 48, the amount of raw water to be processed is large as in the case of the connection of the water softening device 21 shown in FIG. Even so, it is possible to remove calcium, magnesium, sodium, silica, and the like, which are hard water components, in a short time, and to perform water purification treatment that is removal of chalk, mold odor, and the like.

It is explanatory drawing of the water softening apparatus which is this invention. It is explanatory drawing which shows the flow of the raw | natural water which flows through the inside of the water softening apparatus which is this invention. It is explanatory drawing which shows the principle of the water softening apparatus which is this invention. It is explanatory drawing which shows another form of the water softening apparatus which is this invention. It is explanatory drawing which shows the other form of the water softening apparatus which is this invention. It is explanatory drawing which shows the connection state of the water softening apparatus shown in FIG. It is explanatory drawing which shows the connection state of the water softening apparatus shown in FIG. It is explanatory drawing which showed the flow of the usage example of the conventional simple water softening apparatus.

Explanation of symbols

1, 21, 31 ... water softening device, 2, 32a, 44a ... water inlet, 3, 32, 44 ... main body (container) 4, 32b, 44b ... water outlet, 6, 28, 36 ... first filter, 8, 30, 42 ... anode member, 10, 26, 34 ... cathode member, 12, 24, 38 ... second filter, 14 ... support member, 16 ... filter for water purification, 18 ... filter for water purification, 20 ... calcium nitrite , 46, 48 ... Pipe for connection

Claims (8)

A water inlet provided in the container for guiding the raw water, which is liquid, to the inside of the container; a water outlet provided in the container for guiding the raw water to the outside of the container after circulating in the container; In the water softening device comprising
An electrode member provided inside the container for electrolyzing the raw water supplied from the water inlet into the container;
A first filter provided between the anode member and the cathode member, which are the electrode members, and serving as an electrolytic diaphragm;
A water softening device comprising: a second filter provided to allow the raw water supplied from the water inlet to pass therethrough and provided adjacent to the cathode member.   The water softening device according to claim 1, wherein the second filter is in contact with the cathode member.   The water softening device according to claim 1 or 2, wherein the second filter is carbon.   The water softening device according to any one of claims 1 to 3, wherein the cathode member has a mesh shape.   The water softening device according to any one of claims 1 to 4, wherein the first filter is a nonwoven fabric.   6. The electrode member according to claim 1, wherein the electrode members have a cylindrical shape and have different outer diameters so that one of the anode member and the cathode member can accommodate the other. The water softening device described.   The water softening device according to any one of claims 1 to 5, wherein the electrode member has a flat plate shape, and the anode member and the cathode member are in positions facing each other. 8. The connection pipe for connecting the containers to each other can be attached to the water inlet and the water outlet provided in the container. Water softener.

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