JP7037515B2 - Method for determining the degree of wear of hydrogen addition device and hydrogen permeable membrane - Google Patents

Description

The present invention relates to an apparatus for generating hydrogenated water in which hydrogen is added to water and a method for determining the degree of wear of a hydrogen permeable membrane.

As a method of adding hydrogen to water, a module in which a hydrogen gas flow section and a raw material water flow section are partitioned by a hydrogen permeation film (gas permeation film) is used, and pressurized hydrogen gas is supplied to the hydrogen gas flow section. , A technique for dissolving hydrogen in raw material water supplied to a raw material water distribution unit is known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2009-125654

Patent Document 1 discloses that hydrogen gas generated by electrolysis in an electrolytic cell is supplied to a hydrogen gas distribution unit. However, such a technique requires, for example, a configuration for appropriately controlling the water level of the electrolytic cell, which leads to an increase in cost. Therefore, in addition to the techniques disclosed in Patent Document 1, various techniques for producing hydrogenated water at low cost have been studied.

On the other hand, since the module deteriorates due to wear of the hydrogen permeable membrane, regular replacement is recommended. The degree of wear of the hydrogen permeable membrane can be easily estimated from, for example, the usage time of the module.

However, since hydrogen permeable membranes are expensive, it is required to establish a technique for more accurately determining the degree of consumption of hydrogen permeable membranes in order to generate hydrogenated water at a low running cost.

The present invention has been devised in view of the above circumstances, and provides a hydrogenation apparatus capable of accurately determining the degree of wear of a hydrogen permeable membrane with a simple and inexpensive configuration, and a method for determining the degree of wear of a hydrogen permeable membrane. The main purpose is that.

The first invention of the present invention is a hydrogen addition device for adding hydrogen to water, in a first chamber to which dissolved hydrogen water is supplied, a second chamber to which raw water is supplied, and the second chamber. A hydrogen permeable film that moves hydrogen molecules dissolved in the dissolved hydrogen water from the first chamber to the second chamber in order to generate hydrogen-added water, and the hydrogen-added water taken out from the second chamber. A hydrogen concentration detecting unit for detecting the dissolved hydrogen concentration and a determination unit for determining the degree of consumption of the hydrogen permeation film based on at least the dissolved hydrogen concentration are provided.

It is desirable that the hydrogenation apparatus according to the present invention further includes a dissolved hydrogen water generating unit that generates the dissolved hydrogen water supplied to the first chamber.

In the hydrogen addition device according to the present invention, the dissolved hydrogen water generating unit has an anode feeding body and a cathode feeding body, and the dissolved hydrogen water is generated by electrolyzing water to generate the dissolved hydrogen water in the first chamber. It has an electrolytic cell to supply, and further includes a control unit for controlling the voltage applied to the anode feeding body and the cathode feeding body, and the control unit is provided so that the dissolved hydrogen concentration of the dissolved hydrogen water becomes constant. It is desirable to control the voltage.

In the hydrogen addition device according to the present invention, it is desirable that the hydrogen molecules are dissolved in the dissolved hydrogen water in a saturated state.

In the hydrogenation apparatus according to the present invention, it is desirable that a circulating water channel for circulating the dissolved hydrogen water is further provided between the dissolved hydrogen water generating unit and the first chamber.

The hydrogenation apparatus according to the present invention further includes a flow rate detection unit for detecting the supply amount of the raw water to the second chamber per unit time, and the determination unit further includes the determination unit based on the supply amount. It is desirable to determine the degree of wear of the hydrogen permeable membrane.

The second invention of the present invention dissolves in the dissolved hydrogen water in order to generate hydrogenated water in the first chamber to which the dissolved hydrogen water is supplied, the second chamber to which the raw water is supplied, and the second chamber. A method for determining the degree of consumption of a hydrogen permeable film in a hydrogen permeation module including a hydrogen permeable film for moving hydrogen from the first chamber to the second chamber, wherein the second chamber is used. It includes a step of detecting the dissolved hydrogen concentration of the hydrogenated water taken out from the hydrogen addition water, and at least a step of determining the degree of consumption of the hydrogen permeation film based on the dissolved hydrogen concentration.

In the hydrogenation apparatus of the first invention, hydrogen dissolved in the dissolved hydrogen water permeates the hydrogen permeation film and moves from the first chamber to the second chamber, whereby the second chamber is said to be the same. Hydrogenated water is produced. The dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber depends on the degree of consumption of the hydrogen permeable membrane, and decreases as the hydrogen permeable membrane is consumed. Therefore, in the first invention, the determination unit determines the degree of consumption of the hydrogen permeation membrane based on at least the dissolved hydrogen concentration of the hydrogenated water, whereby the hydrogen has a simple and inexpensive configuration. It is possible to accurately determine the degree of wear of the permeable membrane.

The method for determining the degree of consumption of the hydrogen permeable membrane of the second invention is based on the step of detecting the dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber and at least the dissolved hydrogen concentration. , The step of determining the degree of wear of the hydrogen permeable membrane. Therefore, it is possible to accurately determine the degree of wear of the hydrogen permeable membrane with a simple and inexpensive configuration.

It is a figure which shows the schematic structure of the hydrogenation apparatus which is one embodiment of this invention. It is a figure which shows the main structure of a hydrogenation apparatus. It is a block diagram which shows the electric structure of a hydrogenation apparatus. It is a flowchart which shows the processing procedure of the wear degree determination method of one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of an embodiment of the hydrogenation apparatus of the present invention. The hydrogenation device 1 is a device for adding hydrogen to water, and the hydrogenated water to which hydrogen is added is used, for example, as water for preparing a dialysate for preparing a dialysate (hereinafter, dialysis of the hydrogenated water). It may also be referred to as water for liquid preparation). In recent years, hemodialysis using hydrogenated water for preparing a dialysate has been attracting attention as being effective in reducing oxidative stress in patients.

The hydrogenation device 1 is arranged, for example, on the downstream side of the reverse osmosis membrane treatment device 200. The hydrogenation device 1 and the reverse osmosis membrane treatment device 200 may be integrated and configured as one device. On the downstream side of the hydrogenation apparatus 1, for example, a dialysis agent diluting device (not shown) for diluting a liquid dialysis agent with water for preparing a dialysate is connected.

The reverse osmosis membrane treatment device 200 purifies water supplied from the outside by using the reverse osmosis membrane. The reverse osmosis membrane treatment device 200 and the hydrogenation device 1 are connected by a treated water supply path 10. The water purified by the reverse osmosis membrane treatment device 200 (hereinafter referred to as treated water) passes through the treated water supply path 10 and is supplied to the hydrogen addition device 1 to generate hydrogenated water for preparing a dialysate. It is used as raw water for the purpose (hereinafter referred to as raw water).

The hydrogen addition device 1 used for producing the dialysate preparation water adds hydrogen to the raw water supplied from the reverse osmosis membrane treatment device 200 to generate hydrogen addition water for dialysate preparation. The hydrogenation device 1 and the dialysis agent diluting device are connected by a hydrogenation water supply path 20. The hydrogenated water generated by the hydrogenated device 1 passes through the hydrogenated water supply path 20 and is supplied to the dialysate diluting device and used for preparing a dialysate.

FIG. 2 shows the main configuration of the hydrogenation apparatus 1. The hydrogenation apparatus 1 includes a dissolved hydrogen water generation unit 2 and a hydrogen permeation membrane module 3.

The dissolved hydrogen water generation unit 2 generates dissolved hydrogen water and supplies it to the hydrogen permeation membrane module 3. Dissolved hydrogen water is water in which hydrogen molecules are dissolved. In this embodiment, the electrolytic cell 4 is applied as the dissolved hydrogen water generation unit 2. The electrolytic cell 4 generates hydrogen molecules by electrolyzing water to generate dissolved hydrogen water.

In the electrolytic cell 4, the first pole chamber 40a in which the first feeding body 41 is arranged and the second pole chamber 40b in which the second feeding body 42 is arranged are separated by a diaphragm 43.

The polarities of the first feeding body 41 and the second feeding body 42 are different. That is, one of the first feeding body 41 and the second feeding body 42 is applied as an anode feeding body, and the other is applied as a cathode feeding body. In the present embodiment, the first feeding body 41 is applied as an anode feeding body, and the second feeding body 42 is applied as a cathode feeding body. Water is supplied to both the first pole chamber 40a and the second pole chamber 40b of the electrolytic chamber 40, and a DC voltage is applied to the first feeding body 41 and the second feeding body 42, so that water is supplied in the electrolytic chamber 40. Electrolysis occurs.

FIG. 3 is a block diagram showing an electrical configuration of the hydrogenation apparatus 1. The polarity of the first feeding body 41 and the second feeding body 42 and the voltage applied to the first feeding body 41 and the second feeding body 42 are controlled by the control unit 9. The control unit 9 has, for example, a CPU (Central Processing Unit) that executes various arithmetic processes, information processing, and the like, a program that controls the operation of the CPU, and a memory that stores various information. The control unit 9 controls each unit of the device in addition to the first power supply body 41 and the second power supply body 42.

A current detector 44 is provided in the current supply line between the first feeding body 41 and the control unit 9. The current detector 44 may be provided in the current supply line between the second feeding body 42 and the control unit 9. The current detector 44 detects the electrolytic current supplied to the first feeding body 41 and the second feeding body 42, and outputs an electric signal corresponding to the value to the control unit 9.

The control unit 9 controls the DC voltage applied to the first feeding body 41 and the second feeding body 42, for example, based on the electric signal output from the current detector 44. More specifically, the control unit 9 applies a DC voltage to the first feeding body 41 and the second feeding body 42 so that the electrolytic current detected by the current detector 44 becomes a preset desired value. Feedback control. For example, when the electrolytic current is excessive, the control unit 9 decreases the voltage, and when the electrolytic current is too small, the control unit 9 increases the voltage. As a result, the electrolytic current supplied to the first feeding body 41 and the second feeding body 42 is appropriately controlled.

In FIGS. 1 and 2, hydrogen gas and oxygen gas are generated by electrolysis of water in the electrolytic chamber 40. For example, in the second electrode chamber 40b on the cathode side, hydrogen gas is generated, and dissolved hydrogen water in which the hydrogen molecules are dissolved is generated and supplied to the hydrogen permeation membrane module 3. The dissolved hydrogen water generated by such electrolysis is also referred to as "electrolyzed hydrogen water". On the other hand, oxygen gas is generated in the first pole chamber 40a on the anode side.

For the diaphragm 43, for example, a solid polymer membrane made of a fluororesin having a sulfonic acid group is appropriately used. In the solid polymer membrane, the oxonium ion generated in the first pole chamber 40a on the anode side is moved to the second pole chamber 40b on the cathode side by electrolysis, and is used as a raw material for producing hydrogen molecules. Therefore, the pH of the electrolytic hydrogen water does not change without generating hydroxide ions during electrolysis.

The hydrogen permeable membrane module 3 includes a first chamber 31, a second chamber 32, and a hydrogen permeable membrane 33. The first chamber 31 and the second chamber 32 are separated by a hydrogen permeation membrane 33.

The first chamber 31 and the second pole chamber 40b of the electrolytic cell 4 are connected by a hydrogen water supply path 50. The dissolved hydrogen water generated in the second pole chamber 40b of the electrolytic cell 4 passes through the hydrogen water supply passage 50 and is supplied to the first chamber 31.

On the other hand, the second chamber 32 is connected to the treated water supply path 10. Raw water is supplied to the second chamber 32 from the reverse osmosis membrane treatment device 200.

The hydrogen permeation membrane 33 is composed of, for example, a hollow fiber membrane which is a porous membrane that permeates hydrogen molecules. Since the dissolved hydrogen water generated in the electrolytic tank 4 is supplied to the first chamber 31 one after another, the dissolved hydrogen concentration of the water in the first chamber 31 is the dissolved hydrogen concentration of the water in the second chamber 32. Greater than. The hollow fiber membrane moves hydrogen dissolved in the liquid from the first chamber 31 having a high dissolved hydrogen concentration to the second chamber 32 having a low dissolved hydrogen concentration. The hydrogen permeable membrane 33 may be any membrane as long as it has a function of allowing hydrogen molecules dissolved in the liquid to permeate from the high-concentration liquid side to the low-concentration liquid side, and is not limited to the hollow fiber membrane.

In the present invention, the hydrogen permeation membrane 33 transfers hydrogen molecules dissolved in the dissolved hydrogen water in the first chamber 31 from the first chamber 31 to the second chamber 32 in order to generate hydrogen-added water in the second chamber 32. Move it. This makes it possible to generate hydrogenated water with a simple and inexpensive configuration without requiring a configuration for pressurizing hydrogen molecules.

By the way, the hydrogen permeable membrane 33 is consumed with use. The concentration of dissolved hydrogen in the hydrogenated water taken out from the second chamber 32 depends on the degree of consumption of the hydrogen permeation membrane 33. More specifically, when the hydrogen permeation membrane 33 is new, the concentration of dissolved hydrogen in the hydrogenated water generated in the second chamber 32 is high, and as the hydrogen permeation membrane 33 is consumed, the concentration of the dissolved hydrogen decreases. Therefore, in the present hydrogenation apparatus 1, the control unit 9 functions as a determination unit for determining the degree of wear of the hydrogen permeation membrane 33, and monitors the degree of wear of the hydrogen permeation membrane 33. The control unit 9 determines the degree of wear of the hydrogen permeable membrane 33 at any time or periodically.

A hydrogen concentration sensor (hydrogen concentration detection unit) 21 is provided in the hydrogenated water supply path 20. The hydrogen concentration sensor 21 detects the dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber 32, and outputs a corresponding electric signal to the control unit 9.

The degree of consumption of the hydrogen permeation membrane 33 correlates with the dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber 32. For example, when the dissolved hydrogen concentration of the hydrogenated water is less than a predetermined threshold value, it can be determined that the hydrogen permeation membrane 33 is being consumed. A plurality of the above threshold values may be set. Therefore, the control unit 9 determines the degree of consumption of the hydrogen permeation membrane 33 based on the electric signal input from the hydrogen concentration sensor 21, that is, the dissolved hydrogen concentration of the hydrogenated water. This makes it possible to accurately determine the degree of wear of the hydrogen permeable membrane module 3 with a simple and inexpensive configuration.

As described above, the control unit 9 applies a DC voltage to the first feeding body 41 and the second feeding body 42 so that the electrolytic current detected by the current detector 44 becomes a preset desired value. Feedback control. As a result, the dissolved hydrogen concentration of the dissolved hydrogen water generated in the second pole chamber 40b on the cathode side of the electrolytic cell 4 and supplied to the first chamber 31 of the hydrogen permeation film module 3 becomes constant, and the control unit 9 controls. The degree of wear of the hydrogen permeation film module 3 can be determined more accurately.

It is desirable that the dissolved hydrogen water supplied to the first chamber 31 of the hydrogen permeation membrane module 3 is dissolved in a saturated state of hydrogen. The saturated state of the dissolved hydrogen water is realized, for example, by increasing the DC voltage applied to the first feeding body 41 and the second feeding body 42. Therefore, the control of the electrolytic cell 4 becomes easy, and the control unit 9 can determine the degree of wear of the hydrogen permeation membrane module 3 more accurately. In addition, it is possible to increase the concentration of dissolved hydrogen in the hydrogenated water generated in the second chamber 32.

The hydrogenation apparatus 1 is provided with an output unit 91 that outputs the degree of wear of the hydrogen permeation membrane 33 determined by the control unit 9. The output unit 91 outputs the degree of wear by voice, an image, or the like. Such an output unit 91 can be realized by a speaker device, an LED (light emitting diode), a liquid crystal display (Liquid Crystal Display), or the like. Further, the output unit 91 may be configured to output a wireless or wired signal corresponding to the degree of wear of the hydrogen permeable membrane 33 to the computer device that manages the hydrogenation device 1. With such an output unit 91, the administrator of the hydrogenation apparatus 1 can easily know the degree of wear of the hydrogen permeation membrane 33.

As shown in FIG. 1, in the present embodiment, the treated water that has been subjected to the reverse osmosis membrane treatment by the reverse osmosis membrane treatment apparatus 200 is applied to the water that is electrolyzed in the electrolytic cell 4. The treated water is supplied to the electrolytic cell 4 via the treated water supply path 10 and the treated water supply path 11 branching from the treated water supply path 10. That is, the electrolytic cell 4 of the dissolved hydrogen water generation unit 2 and the second chamber 32 of the hydrogen permeation membrane module 3 receive the treated water from the reverse osmosis membrane treatment device 200, which is the same water source. With such a configuration, the hydrogenation device 1 and the piping around it are simplified.

The hydrogenation apparatus 1 of the present embodiment further includes a circulation channel 5 for circulating dissolved hydrogen water between the second pole chamber 40b and the first chamber 31 of the electrolytic cell 4. The hydrogen water supply channel 50 connecting the second pole chamber 40b and the first chamber 31 of the electrolytic cell 4 constitutes a part of the circulation channel 5.

By circulating the dissolved hydrogen water in the circulating water channel 5 while continuing the electrolysis in the electrolytic cell 4, the dissolved hydrogen concentration in the first chamber 31 is increased. As a result, the difference in the dissolved hydrogen concentration between the first chamber 31 and the second chamber 32 is maintained, so that the dissolved hydrogen concentration of the hydrogenated water can be easily increased.

The circulating water channel 5 of the present embodiment is provided with a pump 6 for circulating the dissolved hydrogen water in the circulating water channel 5 and a tank 7 for storing the dissolved hydrogen water. The pump 6 is arranged between the tank 7 and the electrolytic cell 4. The pump 6 is controlled by the control unit to drive and circulate the dissolved hydrogen water in the circulation water channel 5. As a result, the dissolved hydrogen water generated in the electrolytic cell 4 is promptly supplied to the first chamber 31, and the water pressure in the first chamber 31 is increased. On the other hand, by storing the dissolved hydrogen water in the tank 7, the capacity of the circulating water channel 5 is increased, and the fluctuation of the dissolved hydrogen concentration in the circulating water channel 5 is suppressed.

Before supplying the raw water to the second chamber 32, the voltage applied to the first feeding body 41 and the second feeding body 42 is increased in advance, and the electrolytic cell 4 is operated to increase the concentration of dissolved hydrogen in the circulating water channel 5. It can be easily increased to a saturated concentration. As a result, the difference in the dissolved hydrogen concentration between the first chamber 31 and the second chamber 32 becomes large, and the dissolved hydrogen concentration of the hydrogenated water can be easily increased.

The upper part of the tank 7 is open. Therefore, the hydrogen molecules that could not be dissolved in the electrolytic cell 4 become bubbles, move through the circulating water channel 5, flow into the tank 7, and a part of the hydrogen molecules escape from the upper part of the tank 7.

The treated water supply path 10 is provided with a water inlet valve 12 and a flow meter (flow rate detecting unit) 13. The water inlet valve 12 is driven by, for example, an electromagnetic force controlled by the control unit 9, and limits the treated water flowing in the treated water supply path 10. The flow meter 13 detects the flow rate per unit time of the treated water flowing in the treated water supply path 10, that is, the raw water supplied to the second chamber 32 (hereinafter, simply referred to as a flow rate or a supply amount), and is a control unit. Output to 9. The control unit 9 controls the water inlet valve 12 according to the flow rate input from the flow meter 13. As a result, the flow rate of the treated water supplied to the second chamber 32 as raw water is optimized.

A water supply valve 14 is provided in the treated water supply path 11. The water supply valve 14 is driven by, for example, an electromagnetic force controlled by the control unit 9, and limits the treated water flowing in the treated water supply path 11. More specifically, when the tank 7 is filled or replenished with water for electrolysis, the water supply valve 14 is opened, and then when the raw water is supplied to the second chamber 32 of the hydrogen permeation membrane module 3. The water supply valve 14 is closed.

The dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber 32 also depends on the amount of raw water supplied to the second chamber 32. For example, as the amount of raw water supplied to the second chamber 32 increases, the concentration of dissolved hydrogen in the hydrogenated water tends to decrease.

Therefore, the control unit 9 determines the degree of consumption of the hydrogen permeation film 33 based on the supply amount of raw water detected by the flow meter 13 in addition to the dissolved hydrogen concentration of the hydrogenated water detected by the hydrogen concentration sensor 21. It is desirable that it is configured to determine. This enables the control unit 9 to more accurately determine the degree of wear of the hydrogen permeation membrane 33.

A gas vent valve 16 is provided in an exhaust passage 15 (see FIG. 2) extending upward from the first pole chamber 40a of the electrolytic chamber 40. The oxygen gas generated in the first pole chamber 40a by electrolysis is discharged from the exhaust passage 15 and the gas vent valve 16.

FIG. 4 shows a processing procedure of a method for determining the degree of wear of the hydrogen permeable membrane 33 in the hydrogen permeable membrane module 3. The method for determining the degree of consumption of the hydrogen permeable membrane 33 is step S1 for detecting the concentration of dissolved hydrogen, step S2 for detecting the supply amount of raw water, step S3 for determining the degree of consumption of the hydrogen permeable membrane 33, and outputting the determination result. Step S4 to be performed is included.

In step S1, the dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber 32 is detected by the hydrogen concentration sensor 21. In step S2, the amount of raw water supplied to the second chamber 32 is detected by the flow meter 13. The order of steps S1 to S2 does not matter. That is, step S2 may be executed first, and then step S1 may be executed.

In step S3, the control unit 9 determines the degree of consumption of the hydrogen permeable membrane 33 based on the dissolved hydrogen concentration of the hydrogenated water detected in step S1 and the supply amount of the raw water detected in step S2. Then, in step S4, the determination result of step S3 is output by the output unit 91.

According to this consumption degree determination method, it is possible to accurately determine the consumption degree of the hydrogen permeable membrane 33 with a simple and inexpensive configuration.

Although the hydrogenation apparatus 1 and the like of the present invention have been described in detail above, the present invention is not limited to the above-mentioned specific embodiment, but is modified to various embodiments. That is, the hydrogen addition device 1 is at least in order to generate hydrogen addition water in the first chamber 31 to which the dissolved hydrogen water is supplied, the second chamber 32 to which the raw water is supplied, and the second chamber 32. A hydrogen permeation film 33 that moves hydrogen dissolved in water from the first chamber 31 to the second chamber 32, a hydrogen concentration sensor 21 that detects the dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber 32, and at least It suffices to include a control unit 9 for determining the degree of consumption of the hydrogen permeation film 33 based on the dissolved hydrogen concentration.

Further, in the hydrogen addition device 1 shown in FIG. 1, the dissolved hydrogen water generating unit 2 for generating the dissolved hydrogen water to be supplied to the first chamber 31 is not limited to the electrolytic tank 4 that electrolyzes the water. For example, a device that dissolves hydrogen molecules generated by a chemical reaction between water and magnesium in water to generate dissolved hydrogen water, or a device that dissolves hydrogen gas (hydrogen molecules) supplied from a hydrogen gas cylinder in water and dissolves it. It may be a device that produces hydrogen water.

The hydrogenation apparatus 1 can be applied to various uses other than the generation of hydrogenated water for preparing a dialysate. For example, it can be widely applied to the generation of hydrogenated water for drinking, cooking or agriculture.

Further, the consumption degree determination method may include at least a step S1 for detecting the dissolved hydrogen concentration and a step S3 for determining the consumption degree of the hydrogen permeation membrane 33. .. For example, step S2 for detecting the supply amount of raw water may be omitted. In this case, in step S3, the control unit 9 determines the degree of consumption of the hydrogen permeation membrane 33 based on the dissolved hydrogen concentration of the hydrogenated water detected in step S1.

1: Hydrogenation device 2: Dissolved hydrogen water generation unit 3: Hydrogen permeation membrane module 4: Electrolytic cell 5: Circulating water channel 9: Control unit (judgment unit)
13: Flow meter (flow rate detector)
21: Hydrogen concentration sensor (hydrogen concentration detector)
31: First chamber 32: Second chamber 33: Hydrogen permeable membrane module 33: Hydrogen permeable membrane 41: First feeding body (anode feeding body)
42: Second feeding body (cathode feeding body)

Claims (5)

A device for adding hydrogen to water
Dissolved hydrogen water generator that generates dissolved hydrogen water,
The first chamber to which the dissolved hydrogen water is supplied and
A reverse osmosis membrane treatment device that purifies water supplied from the outside using a reverse osmosis membrane to generate treated water.
The second room to which the treated water is supplied and
A hydrogen permeable membrane that moves hydrogen molecules dissolved in the dissolved hydrogen water from the first chamber to the second chamber in order to generate hydrogenated water in the second chamber.
A hydrogen concentration detecting unit for detecting the dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber, and a hydrogen concentration detecting unit.
It is provided with a determination unit for determining that the consumption of the hydrogen permeable membrane is progressing when the dissolved hydrogen concentration is less than a predetermined threshold value .
The dissolved hydrogen water generating unit has an anode feeding body and a cathode feeding body, and has an electrolytic cell that generates the dissolved hydrogen water by electrolyzing water and supplies it to the first chamber.
The electrolytic cell of the dissolved hydrogen water generation unit and the second chamber receive the treated water from the reverse osmosis membrane treatment device, which is the same water source.
Hydrogenation device. Further, a control unit for controlling the voltage applied to the anode feeding body and the cathode feeding body is provided.
The hydrogenation apparatus according to claim 1, wherein the control unit controls the voltage so that the dissolved hydrogen concentration of the dissolved hydrogen water becomes constant. The hydrogenation apparatus according to claim 1 or 2 , wherein the hydrogen molecule is dissolved in the dissolved hydrogen water in a saturated state. The hydrogenation apparatus according to any one of claims 1 to 3, further comprising a circulating water channel for circulating the dissolved hydrogen water between the dissolved hydrogen water generating unit and the first chamber. In order to generate hydrogen-added water in the first chamber to which the dissolved hydrogen water is supplied, the second chamber to which the raw water is supplied, and the second chamber, hydrogen dissolved in the dissolved hydrogen water is transferred from the first chamber. A method for determining the degree of wear of the hydrogen permeable film in a hydrogen permeable module provided with a hydrogen permeable film to be moved to the second chamber.
A step of generating the dissolved hydrogen water by a dissolved hydrogen water generating unit including an electrolytic cell for electrolyzing water, and a step of generating the dissolved hydrogen water.
As the raw water, a step of producing treated water obtained by purifying water supplied from the outside using a reverse osmosis membrane, and
A step of supplying the treated water generated by the reverse osmosis membrane treatment device, which is the same water source, to the electrolytic cell and the second chamber of the dissolved hydrogen water generation unit.
The step of detecting the dissolved hydrogen concentration of the hydrogenated water taken out from the second chamber, and
A step of determining that the hydrogen permeable membrane is being consumed when the dissolved hydrogen concentration is less than a predetermined threshold value, and
including,
A method for determining the degree of wear of a hydrogen permeable membrane.

Images