TW202124291A - Electrolytic cell for water conditioning and water conditioner for home use, in which said electrolytic cell for water conditioning is incorporated - Google Patents

Abstract

According to the present invention, a string-like spacer 15 is held by being affixed at an upstream side end and a downstream side end by means of projections 16. An inner electrode plate 50 serves as a negative electrode. Inlet and outlet (66, 68) of a negative electrode chamber are arranged on the more inner side of the negative electrode chamber than the projections 16. In addition, the upstream side and downstream side projections 16 are positioned on the more inner side in the radial direction than a string 17. Consequently, the distance between a diaphragm 54 and the inner electrode plate 50 is defined by the string-like spacer 15.

Description

Electrolyzer for water treatment and household water treatment device equipped with the electrolyzer for water treatment

The present invention relates to an electrolytic cell for water conditioning and a household water conditioning device equipped with the electrolytic cell for water conditioning, which can individually take out acidic water and alkaline water produced by electrolyzing water.

The electrolyzer for water conditioning has a diaphragm between the anode electrode support plate and the cathode electrode support plate. By this diaphragm, it is divided into an anode chamber that generates acidic water and a cathode chamber that generates alkaline water. Alkaline water containing a high concentration of dissolved hydrogen is known to increase bone density if it is drunk. Alkaline water has been marketed to promote health. In addition, there are also household water conditioners on sale.

In the following description, it is referred to as "upstream" and "downstream" based on the flow of water in the electrolytic cell for water conditioning. There are two known types of water conditioning devices, one is a flat plate and the other is a cylinder. Fig. 14 shows the diaphragm unit 100 included in the flat-plate water straightening device. The flat diaphragm unit 100 is an injection molded product in which a diaphragm 101 and a frame 102 are integrally molded. The reference symbol W shows the flow direction of water. In the flat water conditioning device, water is supplied from the upstream end of the diaphragm unit 100, and electrolyzed water is taken out from the downstream end.

Fig. 15 shows the electrode assembly 110 included in the cylindrical water shaping device. The electrode assembly 110 includes a diaphragm 111, an inner electrode holder 112 located on the inner peripheral side thereof, and a grid-shaped spacer 113 located between these. The lattice spacer 113 is an injection molded product. In the electrolytic cell, the upstream end and the downstream end of the diaphragm 111 are fixed by supporting members. In addition, water is supplied from the upstream end of the electrode assembly 110. This water is divided into two flows. One flow passes through the gap between the inner electrode holder 112 and the diaphragm 111, and the other flows through the diaphragm 111. And the gap between the outer electrode support plate (not shown) is electrolytically processed. In addition, the alkaline water and acidic water are separately taken out from the downstream end of the electrode assembly 110.

Patent Document 1 discloses a cylindrical water straightening device. The upstream end and downstream end of the diaphragm included in this water conditioner are fixed by supporting members. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Laid-Open No. 6(1994)-206072

[The problem to be solved by the invention]

In generating alkaline water containing a high concentration of dissolved hydrogen, it is preferable to increase the voltage applied between the anode and the cathode. This can increase the amount of hydrogen produced. However, a large amount of hydrogen generated will immediately gather and become large pieces and dissolve in the electrolyzed water, or become bubbles and escape from the water.

It is known that alkaline water containing bulk hydrogen is difficult for the human body to absorb. That is, it is known that alkaline water containing a large amount of hydrogen has poor absorption efficiency by the human body. The most effective measure to improve this absorption efficiency is to reduce the dissolved hydrogen in the alkaline water generated by the electrolytic cell for water purification to the molecular level.

For the subject of this technology, it is known that it is effective to reduce the applied voltage as much as possible and maintain the state of the molecular level directly by dissolving hydrogen in alkaline water. However, if the applied voltage is decreased, the electrolysis efficiency will decrease. In order to solve the problem of this new technology, it is known to be effective to reduce the separation distance between the electrodes to the limit. The inventor of the present case discovered the subject of a new technology that minimizes the distance between electrodes.

The inventor of the present case has conducted a review of the structure of the conventional diaphragm unit or the support structure of the diaphragm based on the subject of this new technology.

The flat diaphragm unit 100 of FIG. 14 and the spacer 113 of the electrode assembly 110 of FIG. 15 are all lattice-shaped resin molded products. As long as it is a molded product, in order to maintain the molding quality (prevent the deformation of the molded product), a grid-like structure is generally adopted. Referring to Fig. 14, the frame 102 of the diaphragm unit 100 is formed into a lattice shape by a vertical member 103 along the flow direction of water and a cross member 104 extending in a direction perpendicular to the direction of water flow. Referring to Fig. 15, the cylindrical partition 113 is formed into a lattice shape by a vertical member 115 along the water flow direction and a cross member 116 extending in a direction perpendicular to the water flow direction.

The plate thicknesses of the vertical members 103 and 115 and the cross members 104 and 116 constituting the lattice-shaped unit 100 and the spacer 113 must be predetermined or more. For a structure in which the distance between the electrodes is close to the limit, this plate thickness becomes an obstacle.

The cylindrical water conditioner of Patent Document 1 adopts a structure in which water passage holes are provided in a support member that supports the upstream end and the downstream end of the diaphragm. This water hole extends in the direction of water flow. And, through this water hole, water is supplied to the first gap between the cylindrical inner electrode holder and the diaphragm, and the second gap between the diaphragm and the outer electrode holder, and from the first and second gaps Take out the electrolyzed water. For the existence of this water passage hole, the thickness of the support member in the radial direction is necessary. Therefore, the support member of Patent Document 1 is an obstacle to reducing the gap between the electrode holders.

It is assumed that even if the above obstacles can be overcome by any measures, if the electrode support plate and the diaphragm are too close, accidents of the electrode support plate and the diaphragm contact are likely to occur. Needless to say, contact between the electrode holder and the diaphragm will damage the diaphragm. The grid-like shape of the diaphragm unit 100 in Fig. 14 and the spacer 113 in Fig. 15 is effective only from the viewpoint of preventing contact accidents between the electrode holder and the diaphragm. However, since the spanning member portions 104 and 116 constituting a part of the lattice structure become a factor hindering the flow of water, the efficiency of continuously generating alkaline water and acidic water decreases. [Technical means to solve the problem]

In order to dissolve molecular-level hydrogen in the electrolyzed water, it is effective to electrolyze the water by reducing the voltage applied between the electrodes as much as possible. Based on this, the inventor of the present case is the result of paying attention and reviewing the elements related to the diaphragm, and arrives at the design of the invention.

The object of the present invention is to provide an electrolytic cell for water conditioning, which can narrow the distance between electrode support plates to the limit. As a result, electrolysis can be performed with a lower applied voltage.

The technical problem described above is achieved by providing an electrolytic cell for water purification in the present invention. This electrolyzer for water conditioning has a diaphragm that separates the anode chamber and the cathode chamber, and by electrolyzing water, the acidic water generated in the anode chamber and the alkaline water generated in the cathode chamber can be separately taken out. It also has a separator that is arranged between at least one of the anode electrode holder and the diaphragm arranged in the anode chamber, and between the cathode electrode holder and the diaphragm arranged in the cathode chamber. The spacer is separate from the aforementioned diaphragm, and the spacer is held by fixing parts located at the upstream end and the downstream end of the spacer. The inlet for supplying water to the anode chamber or the cathode chamber and the outlet for taking out the electrolyzed water from the anode chamber or the cathode chamber are located on the inner side of the fixing portion. The partition is made of a resin sheet, and includes: a linear body extending across the inlet and the outlet and extending in the direction of the flow of water, or located continuously across the inlet and the outlet A partition between a plurality of openings that extends along the direction of the flow of water. The linear body and the resin sheet do not include a straddling member, and straddle the flow of water from the inlet to the outlet.

According to the present invention, the separation distance between the electrodes can be reduced to the limit. And, thereby, the voltage applied between the electrodes can be reduced. As a result, the dissolved hydrogen in the alkaline water does not become bulky, and alkaline water can be directly generated from the state of molecular-level hydrogen, and this can be taken out. Drinking this alkaline water can improve the absorption efficiency of hydrogen in the body, so it can contribute to the improvement of health.

Other objects and effects of the present invention will be apparent from the detailed description of the embodiments of the present invention.

Hereinafter, the preferred embodiments of the present invention will be described based on the attached drawings. Figures 1 to 6 show the first embodiment of the present invention. The first embodiment relates to an electrolytic cell for flat-plate water shaping. This electrolytic cell is equipped with 2 anode chambers and 2 cathode chambers, but this is only an example. The electrolytic cell is constructed with a pair of anode chamber and cathode chamber as the smallest unit. Moreover, although the electrolytic cell is composed of the first and second anode units, and a cathode unit located in between, on the contrary, it goes without saying that the electrolytic cell can also be composed of two cathode units and an anode located in between. The unit is constructed.

Fig. 1 is a basic structural diagram of the internal structure of the flat-plate electrolytic cell for water conditioning of the first embodiment. In the figure, between the first anode chamber 1 located on the left side and the second anode chamber 2 located on the right side, the first and second cathode chambers 3 and 4 are arranged. The first anode electrode holder 5 is arranged in the first anode chamber 1. A second anode electrode holder 6 is arranged in the second anode chamber 2. The first anode chamber 1 and the first cathode chamber 3 adjacent thereto are partitioned by a first diaphragm 7. Similarly, the second anode chamber 2 and the second cathode chamber 4 adjacent thereto are divided by the second diaphragm 8. The cathode electrode holder of the first cathode chamber 3 and the cathode electrode holder of the second cathode chamber 4 are shared by a common cathode holder 9.

Figure 2 shows the elements constituting the internal structure of the flat electrolytic cell for water reforming of the first embodiment, namely, the first and second two anode units, the cathode unit arranged therebetween, and the first , An exploded perspective view of the second diaphragm. Fig. 3 is a view viewed from the opposite direction of Fig. 2. Reference numerals 10 and 11 are anode units showing the first and second rectangles. In the first anode unit 10, the first anode electrode holder 5 is assembled on the surface facing the first separator 7. In the second anode unit 11, the second anode electrode holder 6 is assembled on the surface facing the second diaphragm 8.

In the first and second anode units 10 and 11, rope-shaped spacers 15 are arranged in association with the first and second anode electrode holders 5 and 6, respectively. The rope-shaped spacer 15 is locked by a plurality of protrusions 16 arranged at the upstream end and downstream end of the first and second anode units 10, 11, and is folded back along each anode unit 10, 11 The longitudinal direction, that is, the direction of the water flow, is arranged to reciprocate. In addition, the plurality of protrusions 16 constitute a fixing portion of the rope-shaped spacer 15. With this structure, the plurality of rope-shaped spacers 15 separated in the width direction of the first and second anode units 10 and 11 extend in the direction of the flow of water.

Here, the rope constituting the rope-shaped spacer 15 is only a typical example. It is also possible to use a slender rod-shaped body instead of a rope. They can be collectively referred to as "linear bodies".

A cathode unit 12 is arranged between the first and second anode units 10 and 11. The structure of the cathode unit 12 will be described with reference to FIGS. 4 and 5. The cathode unit 12 has a large opening 12a in the center (FIG. 4), and the cathode electrode holder 9 is provided in the middle portion of the opening 12a in the longitudinal direction (FIG. 5). With this structure, in the cathode unit 12, the first and second water passages 12 (us) and 12 (ds) are formed above and below the cathode support plate 9. In this embodiment, the lower first water passage 12 (us) is the water passage on the upstream side, and is the water inlet of the first and second cathode chambers 3 and 4. The upper second water passage 12 (ds) is a water passage on the downstream side, and is an outlet for alkaline water in the first and second cathode chambers 3 and 4. In addition, the cathode unit 12, as can be understood with reference to FIGS. 2 and 3, is provided with rope-shaped spacers 15 on both sides thereof. In other words, the cathode unit 12 is provided with a rope-shaped spacer 15 on the first surface facing the first diaphragm 7 and the second surface facing the second diaphragm 8.

The internal structure, as can be understood from Figures 2 and 3, each sandwiches the first and second separators 7, 8 between the first anode unit 10, the cathode electrode unit 12, and the second anode unit 11 to form a sandwich. Shape. The reference symbol Th is a bolt insertion hole. The bolt insertion hole Th spans the entire circumference of each unit 10 to 12, the first and second diaphragms 7, 8 and is provided at the edge thereof, and the internal structure is assembled by a plurality of bolts penetrating these elements.

FIG. 6 is a diagram in which the upper part of the cathode unit 12 is drawn out. The plural protrusions 16 of the rope spacer 15 are adjacent to the upper downstream side water passage 12 (ds), and are arranged side by side and spaced apart above the downstream water port 12 (ds). The plural protrusions 16 adjacent to the lower upstream water port 12 (us) have the same structure, and the lower protrusions 16 are adjacent to the lower upstream water port 12 (us) and are arranged side by side and spaced below the upstream water port 12 (us) ( Figures 2 and 3). The arrangement of the plurality of protrusions 16 is also the same in the first and second anode units 10 and 11.

Referring to Fig. 3, in the first anode unit 10, the first anode support plate 5 is adjacent to the first anode electrode support plate 5, and recesses 20(ds) and 20(us), which are recesses on the downstream and upstream sides, are formed on the upper and lower sides of the first anode unit 10. In addition, in the second anode unit 11, the second anode support plate 6 is adjacent to the second anode support plate 6 and the downstream and upstream recesses, namely, recesses 22 (ds) and 22 (us) are formed on the upper and lower sides thereof. The four recesses, namely the recesses 20 (us), 20 (ds), 22 (us), and 22 (ds), form part of the water flow path. The plural protrusions 16 provided on the cord spacer 15 of the first and second anode units 10 and 11 are arranged at the upper and lower ends similarly to the cathode unit 12. And it is adjacent to the upper downstream cavities 20(ds), 22(ds) and is provided with a protrusion 16 above it, and is adjacent to and below the lower upstream cavities 20(us), 22(us) A protrusion 16 is provided (Figure 2 and Figure 3).

Next, the flow of water in the internal structure of the flat electrolytic cell for water conditioning of the first embodiment will be described. Referring to the first anode unit 10 shown in Figures 2 and 3 and Figure 1, the two holes Hin1 and Hin2 (Figure 2) at the lower part of the first anode unit 10 constitute a water pipe for passing water through the outside. And lead it into the first and second entrances of the internal structure. The first inlet hole Hin1 has a function of supplying water to the first and second anode chambers 1 and 2 (Figure 1). The second inlet hole Hin2 has a function of supplying water to the first and second cathode chambers 3 and 4.

The two holes Hout1 and Hout2 (Figure 2) in the upper part of the first anode unit 10 constitute first and second outlets for discharging the electrolyzed water to the outside. The first outlet hole Hout1 has a function of taking out the acidic water generated in the first and second anode chambers 1 and 2 through the first and second anode chambers 1 and 2 to the outside. The second outlet hole Hout2 has a function of taking out the alkaline water generated in the first and second cathode chambers 3 and 4 through the first and second cathode chambers 3 and 4 to the outside.

The water entering the first inlet hole Hin1 of the first anode unit 10 serves as the first flow path and enters the lower recess of the first anode unit 10, that is, the upstream side cavity 20 (us). In addition, the process of moving upward in the first anode chamber 1 becomes acidic water. In addition, this acidic water enters the upper recess, that is, the downstream recess 20 (ds), and is taken out from the first outlet hole Hout1 that opens in the recess 20 (ds). That is, the upstream pocket 20 (us) substantially constitutes the inlet of the first anode chamber 1, and the downstream pocket 20 (ds) substantially constitutes the outlet of the acidic water generated in the first anode chamber 1.

The water entering the first inlet hole Hin1 of the first anode unit 10 is used as a second flow path, passing through the lower water passing hole 24 of the first diaphragm 7, and penetrating the lower water passing hole 26 and the second diaphragm 8 of the cathode unit 12 The lower water-passing hole 28 enters the lower recess of the second anode unit 11, that is, the upstream side recess 22 (us). The water entering the lower cavity 22 (us) of the second anode unit 11 becomes acidic water in the process of moving upward in the second anode chamber 2. And, this acidic water enters the upper recess, that is, the downstream recess 22 (ds) (Figure 2). The upper water passing hole 30 of the second diaphragm 8 opens in the downstream side pocket 22 (ds). In addition, the upper water passage hole 30 passes through the upper water passage hole 32 of the cathode unit 12, the first upper water passage hole 34 of the first diaphragm 7, and the first upper water passage hole 34 of the first diaphragm 7 passes through The first outlet hole Hout1 of the first anode unit 10. As mentioned above, because the first outlet hole Hout1 is the outlet of the acidic water generated in the first anode chamber 1, the acidic water in the first anode chamber 1 and the acidic water in the second anode chamber 2 are in the first outlet hole. Hout1 merges and is taken out from the first outlet hole Hout1 to the outside.

The second inlet hole Hin2 of the first anode unit 10 passes through the lower water passage hole 40 of the first diaphragm 7 and the upstream water passage 12 (us) below the cathode unit 12. From this, it can be seen that the water entering the second inlet hole Hin2 of the first anode unit 10 is supplied to the upstream side water passage 12 (us) of the cathode unit 12. The water entering the upstream side water passage 12 (us) of the cathode unit 12 moves upward in the first and second cathode chambers 3 and 4 and becomes alkaline water. The alkaline water generated in the first cathode chamber 3 and the alkaline water generated in the second cathode chamber 4 merge at the downstream side water port 12 (ds) of the cathode unit 12. That is, the upstream water port 12 (us) is an inlet that substantially constitutes the first and second cathode chambers 3, 4, and the downstream water port 12 (ds) is substantially constituted in the first, second cathode chambers 3, and 4, respectively. 4 The outlet for the generated alkaline water. The downstream water passage 12 (ds) communicates with the second outlet hole Hout2 of the first anode unit 10 through the second upper water passage 42 of the first diaphragm 7. As a result, the alkaline water generated in the first and second cathode chambers 3 and 4 is taken out from the second outlet hole Hout2 of the first anode unit 10 to the outside.

The point of interest is that the two inlet holes Hin1 and Hin2 at the lower part of the first anode unit 10 are located above the plurality of protrusions 16 of the rope-shaped spacer 15 below, that is, the fixing portion of the linear body. Similarly, the two outlet holes Hout1 and Hout2 in the upper part of the first anode unit 10 are located below (inside) the plurality of protrusions 16 of the upper rope-shaped spacer 15. In addition, the lower recess of the first anode unit 10, namely the recess 20 (us), the lower water passage holes 40 and 24 located below the first diaphragm 7, all of the elements constituting the water path are located below The plurality of protrusions 16 of the rope-shaped spacer 15, that is, the fixing portion of the linear body, is above or inside. Similarly, all the elements constituting the water path such as the two outlet holes Hout1 and Hout2 in the upper part of the first anode unit 10 are located below or inside the plurality of protrusions 16 of the rope-shaped spacer 15 above.

From this, it can be seen that the rope-shaped spacer 15 located between the first anode support plate 5 and the first separator 7 prevents the first anode support plate 5 and the first separator 7 from contacting, and the first anode support The interval between the plate 5 and the first diaphragm 7 is limited by the rope-shaped spacer 15. The interval between the first diaphragm 7 and the cathode electrode holder 9, the interval between the cathode electrode holder 9 and the second diaphragm 8, and the interval between the second diaphragm 8 and the second anode electrode holder 6 are also the same.

Therefore, the interval between the electrodes of the internal structure can be very small. If the thickness of the rope-shaped separator 15 is reduced, the distance between the electrodes and the diaphragm can be shortened, and the separation distance between the electrodes can also be shortened.

Here, if the applied voltage is increased, a lot of hydrogen will be generated because the reaction becomes violent, so the dissolved hydrogen will increase, but the molecular level hydrogen generated due to the violent reaction will merge with each other and become larger. Because the enlarged hydrogen mass becomes a gas and escapes from the water, it does not become dissolved hydrogen, and the dissolved hydrogen itself becomes a large mass, so the absorption efficiency into the body becomes poor. According to the plate-shaped electrolytic cell of the first embodiment, since the distance between the electrodes can be reduced to the limit, electrolysis can also be performed at a low voltage of, for example, 12V (Volt) and 24V.

By the way, in the water purifiers that can generate electrolyzed alkaline water, the distance between the electrodes is 4mm or more, and the applied voltage is 70V. As in the example, the electrolysis reaction is stable at low voltages of 12V and 24V. As a result, the possibility of the combination of hydrogen generated by electrolysis is reduced. As a result, the amount of hydrogen removed from the water due to the vaporization generated by the combination is reduced, and the dissolved hydrogen can be maintained at the molecular level.

In addition, since the linear body represented by the rope 17 constituting the rope-shaped partition 15 extends in the direction of the water flow, the water can flow smoothly in the respective chambers 1 to 4.

Figures 7 to 13 are diagrams for explaining the second embodiment. The second embodiment is a cylindrical electrolytic cell. Fig. 7 is a perspective view with a part of the cylindrical electrolytic cell cut away. Reference numeral 50 is a cylindrical inner electrode holder, 52 is a cylindrical outer electrode holder, 54 is a diaphragm, and 56 is a frame. The water entering from the inlet 58 of the frame 56 is divided into a first flow that enters the center hole 60 inside the frame 56 and a second flow that enters the upstream gap 62 outside of the first flow. Referring to Figure 8, the first water A entering the center hole 60 enters the inner peripheral side of the cylindrical diaphragm 54 from the upstream hole 66 of the core 64 that is plurally provided in the center (Figure 7), in the diaphragm 54 and The cylindrical inner electrode holder 50 flows between the plurality of downstream holes 68 at the other end of the core 64 and enters the inner side of the core 64, and is discharged from the first outlet 70 of the frame (Figure 7). The frame body first outlet 70 extends in the axial direction of the frame body 56. Here, the diaphragm 54 is fixed to the core 64 in the vicinity of both ends in the longitudinal direction of the core 64.

On the other hand, the second water B (Figure 8) entering the upstream gap 62 passes through the outer peripheral side of the cylindrical diaphragm 54, flows between the diaphragm 54 and the cylindrical outer electrode holder 52, and passes The downstream gap 72 is discharged from the second outlet 74 (Figure 7) of the housing. The frame second outlet 74 extends in a direction perpendicular to the axis of the frame 56.

Assuming that the inner electrode holder 50 is set as the anode and the outer electrode holder 52 is set as the cathode, the water B passing through the outside of the diaphragm 54 becomes alkaline water. The water A passing through the inside of the diaphragm 54 becomes acidic water. Conversely, when the inner electrode holder 50 is set as a cathode and the outer electrode holder 52 is set as an anode, the water A passing through the inner side of the diaphragm 54 becomes alkaline water. The water B passing through the outside of the diaphragm 54 becomes acidic water.

The second embodiment also includes a rope-shaped spacer 15. The rope spacer 15 is arranged in parallel to the center line of the cylinder in the example shown in Fig. 7, but it may be arranged to spirally wrap around the curved inner electrode holder 50 (Fig. 9) .

Figure 8 is a typical technical idea of the present invention. As best understood from FIG. 8, the rope-shaped spacer 15 is fixed by the protrusion 16 and held at the upstream and downstream ends. In addition, the water is taken in from the inner side of the protrusion 16 on the upstream and downstream sides, that is, the fixing portion of the linear body (Figures 6 and 7), and the alkaline water is taken out. That is, the inlets 66 and 68 of the cathode chamber are located inside the cathode chamber than the protrusion 16. In addition, the protrusions 16 on the upstream side and the downstream side are located inward in the radial direction than the rope-shaped spacer 15. From this, it can be seen that the cord 17 can limit the interval between the diaphragm 54 and the inner electrode holder 50, and the cord 17 can prevent the diaphragm 54 and the inner electrode holder 50 from contacting accidents in advance. In other words, the separation interval between the separator 54 and the inner electrode holder 50 can be reduced to the thickness of the rope-shaped separator 15.

Fig. 9 is a diagram showing an example in which the rope-shaped spacer 15 is arranged in a spiral shape. In addition, FIGS. 9 and 10 show an example in which both ends of the rope 17 are fixed by the downstream fixing groove 76 and the upstream fixing groove 78 instead of the spacer protrusion 16. Since these downstream fixed grooves 76 and upstream fixed grooves 78 have a shape recessed inward in the radial direction, the fixing parts of the rope 17 of the downstream fixed groove 76 and the upstream fixed groove 78 will not be more radially oriented than the rope 17 The direction protrudes outward.

Instead of the rope-shaped spacer 15, a single sheet-shaped spacer 80 made of resin and provided with long holes may be used. 11 to 13 are diagrams of the sheet-like spacer 80. As shown in FIG. Referring to Fig. 13, the sheet-like spacer 80 is made of a sheet of PP (polypropylene) resin. When viewed from a plan view, the rectangular sheet-shaped spacer 80 has a plurality of elongated openings 80a extending in the direction of the water flow in its entire area, and the elongated openings 80a are formed by punching. This elongated opening 80a continuously extends from the upstream end to the downstream end of the sheet-shaped spacer 80, and does not include the element of the cross member 116 (FIG. 15) of the grid-shaped spacer 113 of the embodiment. In addition, the portion 80b between the two adjacent openings 80a substantially functions as a spacer. The plural other partitions 80b extend in the direction of the flow of water, and two adjacent partitions 80b are parallel to each other. That is, the partition 80b between the two adjacent openings 80a is the same as the linear body of the typical example of the rope 17 described in the first embodiment and the like, and has the function of a spacer.

The sheet-like spacer 80 shown in Fig. 13 becomes a cylindrical shape when it is rounded (Fig. 12). In addition, the cylindrical shape of the sheet-like spacer 80 can maintain its cylindrical shape even if it is incorporated in a cylindrical electrolytic cell. In other words, the sheet-shaped spacer 80 has shape retention. From this, it can be seen that, unlike the rope 17 used in the first embodiment, etc., the sheet-like spacer 80 can be positioned and fixed by pinching any member from the upstream end and the downstream end of the sheet-like spacer 80. Therefore, the inlet 66 and the outlet 68 described with reference to Fig. 8 are arranged around the inner electrode holder 50 if they are arranged inward from the upstream and downstream ends of the sheet-like spacer 80. The diameter of the cylindrical sheet-like spacer 80 (Figure 12) can be substantially equal to the outer diameter of the inner electrode holder 50.

Needless to say, the above-mentioned sheet-shaped spacer 80 can also be applied to the plate-shaped electrolytic cell of the first embodiment.

In the first and second embodiments, because the separation distance between the electrode support plates can be reduced to the limit, the alkali with the desired pH can also be made from a relatively low voltage called 12V (Volt) or 24V. Sex water. In addition, the hydrogen generated in the cathode chamber can be maintained at the molecular level. By drinking alkaline water containing this molecular level of hydrogen, the absorption efficiency into the body can be improved.

In the conventional electrolyzed water generator for beverages, in order to stabilize the ion concentration, a structure in which water flows through the upstream and downstream ends of the diaphragm is adopted. In the present invention, the water inlet and outlet are located on the inner side of the part where the separator arranged between the electrode and the diaphragm is fixed, that is, on the central side of the electrolysis chamber, so the electrolysis can be designed without being affected by the shape of the separator fixing part. groove. Therefore, it is not restricted by the spacer fixing part, and the thickness of the spacer can be reduced to the limit. The present invention makes it possible to reduce the size of the household water conditioner by applying a water conditioner oriented in general households, and to provide a smaller size water conditioner for each household. In addition, the present invention proposes a concrete measure that can provide each household with a water purifier capable of generating alkaline water for beverages with a voltage of 24V or less that does not need to pass electrical inspections in various countries.

1: The first anode chamber 2: 2nd anode chamber 3: The first cathode chamber 4: The second cathode chamber 5: The first anode electrode support plate of the first anode chamber 1 6: The second anode electrode support plate of the second anode chamber 2 7: The first diaphragm 8: Second diaphragm 9: Common cathode electrode support plate 10: 1st anode unit 11: 2nd anode unit 12: Cathode electrode unit 12(ds): Water port on the downstream side 12(us): Water inlet on the upstream side 12a: opening 15: Rope-like spacer 16: The protrusion of the spacer 17: rope 20: Upstream side cavity 22: Downstream side cavity 24: Water hole below 26: Water hole below 28: Water hole below 30: Water hole above 32: Water hole above 34: The first upper water hole 40: Water hole below 42: The second upper water hole 50: Inner electrode support plate 52: Outer electrode support plate 54: Diaphragm 56: Frame 58: Entrance of the frame 60: Center hole 62: Upstream side clearance 64: core 66: Upstream hole (inlet) 68: Downstream hole (outlet) 70: The first exit of the frame 72: downstream clearance 74: The second exit of the frame 76: Fixed groove on the downstream side of the spacer 78: Fixed groove on the upstream side of the spacer 80: flake spacer 80a: The elongated opening of the lamella spacer 80b: A partition that essentially functions as a partition 100: Flat diaphragm unit 101: Diaphragm 102: frame 103: Longitudinal member 104: Cross member 110: Electrode assembly 111: Diaphragm 112: inner electrode support plate 113: Lattice spacer 113: Cylindrical spacer 115: Longitudinal member 116: Cross member Hin1: The first inlet hole of the first anode unit (water for the anode chamber) Hin2: The second inlet hole of the first anode unit (water for the cathode chamber) Hout1: The first outlet hole of the first anode unit (extraction of acidic water) Hout2: The second outlet hole of the first anode unit (take out the alkaline water)

[Figure 1] A diagram for explaining the arrangement relationship of two anode chambers and two cathode chambers formed by the internal structure of the flat electrolytic cell of the first embodiment. [Fig. 2] There is a development view of the internal structure of the first embodiment of the flat electrolytic cell, and a diagram for explaining the arrangement of the electrode unit and the diaphragm. [Fig. 3] A diagram related to Fig. 2 showing the arrangement of the electrode unit and the diaphragm viewed from a different direction from Fig. 2. [Fig. 4] An exploded perspective view for explaining the structure of the cathode unit. [FIG. 5] A diagram related to FIG. 4, explaining the structure of the cathode unit after the cathode electrode holder is incorporated. [Fig. 6] Taking the cathode unit as an example, an enlarged view of the arrangement of the rope-shaped spacer and its constituent elements, that is, the rope is arranged inverted by the protrusions. [Figure 7] A perspective view in which a part of the cylindrical electrolytic cell of the second embodiment is cut away. [Figure 8] A schematic cross-sectional view for explaining the internal structure of the second embodiment. [Fig. 9] A diagram for explaining an example in which the rope-shaped spacers to be included in the second embodiment are arranged in a spiral shape. [Figure 10] A cross-sectional view for explaining an example of a structure in which both ends of the rope-shaped spacer included in the second embodiment are fixed. [Fig. 11] A diagram for explaining an example in which a resin sheet constitutes a spacer instead of the rope-shaped spacer included in the second embodiment. [Fig. 12] A diagram for explaining a form in which the sheet-shaped spacer of Fig. 11 is assembled into a cylindrical shape. [Figure 13] A plan view of the sheet-like spacer. [Figure 14] A perspective view of a diaphragm unit included in a conventional plate-shaped electrolytic cell. [Figure 15] A perspective view of an assembly including a diaphragm of a conventional cylindrical electrolytic cell.

15: Rope-like spacer

16: The protrusion of the spacer

50: Inner electrode support plate

52: Outer electrode support plate

54: Diaphragm

56: Frame

64: core

66: Upstream hole (inlet)

68: Downstream hole (outlet)

A: The first water

B: second water

W: The direction of water flow

Claims (8)

An electrolytic cell for water purification, It has a diaphragm that separates the anode chamber and the cathode chamber. The acidic water generated by the anode chamber and the alkaline water generated by the cathode chamber can be separately taken out by electrolyzing the water. Its characteristics are: A separator is arranged between at least one of the anode electrode holder and the diaphragm arranged in the anode chamber, and between the cathode electrode holder and the diaphragm arranged in the cathode chamber, The spacer is a separate body from the aforementioned diaphragm, and the spacer is held by fixing parts located at the upstream and downstream ends of the spacer, The inlet for supplying water to the anode chamber or the cathode chamber and the outlet for taking out the electrolyzed water from the anode chamber or the cathode chamber are located on the inner side of the fixing part, The partition is made of a resin sheet, and includes: a linear body extending across the inlet and the outlet and extending in the direction of the flow of water, or located continuously across the inlet and the outlet A partition between a plurality of openings extending along the direction of the flow of water, The linear body and the resin sheet do not include a straddling member, and straddle the flow of water from the inlet to the outlet. Such as the electrolytic cell for water treatment in claim 1, where: The aforementioned spacer is composed of the aforementioned resin sheet, The opening of the resin sheet is formed by punching. Such as the electrolyzer for water treatment in claim 2, in which, The opening formed by the punching process continuously extends across the upstream end and the downstream end of the resin sheet. Such as the electrolytic cell for water treatment in any one of Claims 1 to 3, wherein: The aforementioned electrolytic cell for water straightening is a flat electrolytic cell, The separator is arranged between the anode electrode holder and the diaphragm and between the cathode electrode holder and the diaphragm. Such as the electrolytic cell for water treatment in any one of Claims 1 to 3, wherein: The electrolytic cell for water conditioning is a cylindrical electrolytic cell in which the diaphragm is arranged between a cylindrical outer electrode support plate and a cylindrical inner electrode support plate. The separator is arranged between the inner electrode support plate and the diaphragm. A household water purifier, It is equipped with an electrolyzer for water purification as in claim 4 or 5. Such as the household water purifier of claim 6, in which, The voltage applied between the aforementioned electrodes is 24V or less. A spacer is used in a cylindrical electrolytic cell for water conditioning. The aforementioned cylindrical electrolytic cell for water conditioning has: A diaphragm arranged between the cylindrical outer electrode holder and the cylindrical inner electrode holder, and The spacer arranged between the inner electrode support plate and the diaphragm, and An inlet for supplying water between the aforementioned diaphragm and the aforementioned inner electrode support plate, and The outlet for taking out the electrolyzed water generated between the aforementioned diaphragm and the aforementioned inner electrode support plate, The partition is made of a resin sheet, and has partitions between a plurality of openings continuously extending across the entrance and the exit, and The aforementioned openings of the aforementioned resin sheet are made by punching, This resin sheet does not include a cross member, and it crosses the flow of water from the inlet to the outlet.

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