JP3073504B2 - Water treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a simple water treatment apparatus to be used by connecting to a tap of a general household.

[Summary of the Invention] The present invention enables a water treatment apparatus to notify and display the service life of activated carbon in a water purifier and the preparation for replacement of activated carbon during use of a water purifier using activated carbon or the like.

[Prior art] Conventionally, as a water treatment device used by connecting to a water tap, a water purifier using activated carbon or the like, an additive for mixing health agents such as minerals into water, and alkaline ionized water generated by an electrolysis action A combination of an electrolytic cell and the like to be used is used.

[Problems to be Solved by the Invention] As the water purifier, a type in which activated carbon is stored in a cartridge so that the cartridge can be replaced when the filtration capacity is reduced is often used.

However, in the case of the remaining filtration capacity of activated carbon in the water purifier, that is, the life of the filtration capacity in the water treatment apparatus, the water supply to the water purifier is continuous or intermittent, so it is difficult to confirm the end of life.

Theoretically, the desalting ability of the activated carbon of the water purifier is determined by the total filtered water amount at which the calcified solution having a known concentration passes through the activated carbon layer at a constant flow rate and the calcified concentration after the filtration treatment reaches a specified concentration. . Therefore, the water purifier removal capacity can be expressed by the following equation. Where t is the transit time.

Water purifier removal capacity (ppm · t) = cultivated raw water cultivation concentration (ppm) x total amount of water passed (= 1/1000 · t) By knowing the amount of raw water to be treated, it is possible to know the life of the activated carbon cartridge of the water purifier and the time to replace the cartridge.

However, in practice, it is easy to know the concentration of raw water, but it is very difficult and unrealistic to know the amount of water used (the amount of water passed through the water purifier).

[Object of the Invention] The main object of the present invention is to provide a water treatment apparatus that can easily detect the life of the filtration capacity of a water purifier and can notify and display the same. is there.

[Means for Solving the Problems] The present invention purifies raw water through a water purifier filled with activated carbon and a reducing inorganic substance in layers, and converts the purified filtered water into a flowing water channel from the water purifier to the electrolytic cell. In the water treatment apparatus controlled by the provided constant flow rate control means and operated by the switch means for sensing the flow of raw water provided in the centralized flow path control unit to start electrolysis in the electrolytic cell, the flow rate of the switch means Is used as the operation time of the apparatus, the sum of the operation times is used as the water passage time of the water purifier, the total amount of water passing through the water purifier is converted, and a means is provided to notify and display when it reaches the set amount. The configuration solves the above-mentioned problem.

[Operation] In the water treatment apparatus having the above configuration, the operation time of the apparatus is determined by the switch means detecting the flow of the raw water provided in the centralized flow path control unit, and the sum of the operation times is defined as the water passage time of the water purifier. The total amount of water passing through the water purifier is calculated by converting the total amount of water passing through the water purifier. Therefore, assuming that the concentration of calcium is constant, by comparing the total amount of passing water with a set value,
You can know the filtration capacity of the water purifier.

Embodiment FIGS. 1 to 12 show an embodiment of the present invention.

First, a configuration of a main part of the water treatment apparatus will be schematically described with reference to FIGS. 1 to 3. 1 is a box housing the water treatment unit. As a water treatment unit, a water purifier A, a health agent additive unit B, and an electrolytic layer C are combined and housed in a state connected to a centralized channel control unit D.

The water purifier A is a fixed bed in which a cartridge case 2 is filled with activated carbon 3 and a reducing inorganic substance 3a, for example, calcium sulfite, in a layered manner for the purpose to be described later. 4 is an inlet for water, and 5 is an outlet.

The health agent adder B is for mixing a mineral agent such as calcium carbonate or calcium glycerophosphate, glycerin β-D-glucose, or a nutrient, or a vitamin agent into tap water. The health agent as described above is placed in the tank 6. The structure has a structure in which the health agent is eluted into water through the mesh tube 7 by storing the mesh tube 7 and passing water from the lower part to the upper part of the tank.
9 is an outlet.

The electrolytic cell C has a cell 10 and a cathode chamber 12 provided with a cathode 11,
The anode 13 is divided into an anode chamber 15 independently formed by a diaphragm 14.The cathode 16 has an inlet on the cathode chamber side, 19 has an outlet thereof, 18 has an inlet on the anode chamber side, and 17 has an inlet on the anode chamber side. It is the outlet.

The centralized channel control unit D includes a first conduit d _1, a second conduit d ₂ which communicates with cross one end thereof, a third tube communicating with intersecting one end of the second conduit d ₂ has three main conduit tracts d _3.

The first conduit d _1, the connecting pipe mouth of tap water at one end 20
The a check valve unit is provided consisting of a ball 21 and valve port 22 at a site crossing the second conduit d _2, in the vicinities of the ball valve unit, the inlet 4 of the water purifier A A conduit 23 to be connected is provided. Reference numeral 24 denotes a ball stopping member serving as a check valve portion.

The second conduit d _2, a portion crossing the third conduit d _3, the tube opening 25 connected to the outlet 5 of the water purifier A is provided,
A pipe portion 26 connected to the inflow port 8 of the health agent additive device B is provided in the vicinity thereof, and a constant flow rate control unit E described later is provided in a front portion thereof.
A tube port 27 connected to the cathode chamber side inlet 16 and the anode chamber side inlet 18 is provided.

The third conduit d _3, at one end thereof, is provided a diaphragm 28 which operates at pressure changes in the conduit, attached thereto projections
Reference numeral 29 is engaged with a microswitch S for operating the electrolytic cell provided outside the conduit so that the electrolytic cell can be started, stopped, and changed in polarity.

Further, the third conduit d _3, in opposite directions site the diaphragm 28, the check valve unit is provided consisting of a ball 30 and valve port 31, drain pipe mouth for use in a later cleaning process ahead
32 are provided. 33 is a ball stop member of a check valve part. Numeral 34 denotes a vent pipe opening which can communicate with the anode chamber outlet.

The outlet 9 of the health agent adder B is connected to join the water flowing into the inlet 18 on the anode chamber side of the electrolytic cell C.

In FIG. 1, reference numeral 35 denotes a hose for guiding tap water to the pipe port 20 of the first pipe, and 36 denotes water flowing out of the pipe port 26 of the second pipe to the inflow port 8 of the health food additive B. Hose to lead to the
37 is a hose for guiding water flowing out of the outlet 9 of the adder to the inlet 18 on the anode chamber side of the electrolytic cell C. 38 is a hose for flowing water flowing out of the pipe opening 27 of the second conduit to the cathode of the electrolytic cell C. A hose for leading to the chamber side inlet 16, a hose 40 for taking out the alkaline ionized water flowing out of the cathode chamber side outlet 19 of the electrolytic cell C to the outside, and an acid water 39 flowing out of the anode chamber side outlet 17. FIG. 3 shows a hose for taking out the outside.

Reference numeral 1a denotes a receiving stand that supports the water purifier A and also supports the centralized flow path control unit D, and the pipe openings 23 and 25 are connected to the inlet 4 and the outlet 5 of the water purifier through the receiving stand 1a. .

As shown in FIGS. 4 and 5, the above-mentioned constant flow rate control unit E includes a valve body 41 and a rubber-like elastic material receiving body 42 superposed thereon. The valve element 41 has a water passage hole 41a penetrating in the pipe direction at a central portion thereof, and a plurality of water passage grooves penetrating in a radial direction on an end face abutting the seat 42.
41b is formed. On the other hand, the valve body 4
A water passage hole 42a penetrating in the pipe direction is formed so as to communicate with one central water passage hole 41a.

In the constant flow control unit E, the water in the pipeline is
Through the two passages of the center water hole 41a and the radial water groove 41b. The flow rate of water passing through the valve body 41 is (P + Q), which is the sum of the flow rate P passing through the water passage hole 41a and the flow rate Q passing through the plurality of water passage grooves 41b. However, when the water pressure in the pipeline changes, for example, when the water pressure increases, the pressing force acting on the end face of the valve body 41 also increases, so that the valve body 41 comes into contact with the seat 42 of the rubber-like elastic material. In this case, the cross-sectional area of the water passage 41b is reduced by the deformation of the seat 42, and the flow rate is reduced. In this case, the valve element 41
The cross section of the center water hole 41a is not affected by the water pressure change,
Its flow rate increases and decreases in proportion to the water pressure. Therefore, according to the constant flow control unit E, the valve body responds to changes in the water pressure in the pipeline.
Since the flow rate passing through 41 is kept almost constant, the amount of water supplied to electrolytic cell C can be kept almost constant. The graph of FIG. 6 shows the valve operating pressure on the valve element 41 and the flow rates P and Q.
It shows the relationship with.

In the water purifier A, as shown in FIG. 7, if the inlet 4 of the cartridge case 2 is deviated from the center position with respect to the cylindrical filtration layer, the filtration efficiency is reduced. The structure is such that an inflow chamber is formed on the inlet side.

The filtration layer of the water purifier A is composed of three layers, a first layer of activated carbon 3, a second layer of reducing inorganic substance 3a, and a third layer of activated carbon 3, in the direction of water flow.

In a conventional water purifier, activated carbon is generally used as a filtering agent. However, in the case of a filtering agent containing only activated carbon, as shown in a residual chlorine removal curve (dashed line) in the graph of FIG.
The adsorption capacity is slow, and it can be almost completely removed in the early stage of use, but after that, residual chlorine not adsorbed on activated carbon passes through in an untreated state. Therefore, when considered as drinking water, chlorine water is sterilized at a water purification plant and disinfected, but raw water containing organic substances such as humic acid reacts with chlorine and hypochlorous acid, and trihalomethane (THM). This substance is known to be carcinogenic to the human body, causing secondary contamination by chlorination.

However, according to the three-layer water purifier, it is possible to improve the ability to remove secondary pollutants and to remove residual chlorine and free chlorine.

In other words, the component composition of pollutants in tap water is odor (odorous substances such as diosmin and 2-MIB = phytoplankton of cyanobacteria), trihalomethane formed by the reaction between chlorinated disinfection and humic acid that has decomposed plants, Organic chlorine compounds such as pesticides, heavy metals (such as cadmium, lead, mercury, and zinc), residual chlorine, iron rust, and pollutants.

When these substances are removed by filtration with a filter medium,
Can be removed with activated carbon. However, activated carbon has no selectivity, and some have a high molecular weight and some are not adsorbed depending on the flow rate through the filtering agent. As a result, as shown in the graph of FIG. 8, a rise is observed from a relatively early point in time.

On the other hand, in the three-layer water purifier A,
The first layer adsorbs the following substances, the second layer causes a reduction reaction of residual chlorine, decomposes into Cl ^- and oxygen, and renders the substance harmless. Has the function of adsorbing again, thereby improving the purification ability represented by residual chlorine removal.

FIG. 9 and FIG. 10 show fixing means when the cartridge case 2 of the water purifier A is replaced. That is, the cartridge case 2 is put into an annular wall portion 1b provided on the receiving table 1a, and a ring 2a which is previously rotatably fitted to the case 2 is turned, and a part of the ring 2a is partially turned into the annular wall portion 1b.
And a part of the ring 2a presses down and fixes the annular protruding edge 2b on the case side.

Next, the water treatment operation of the above-described components will be described.

Opening a faucet (not shown), the tap water flows from the centralized channel control unit first conduit d ₁ of the tubular mouth portion 20 of the D to conduit. Then, due to the fluid pressure, the ball 21 moves,
The valve port 22 is closed, the water exits the pipe port 23 and flows into the vessel from the inlet 4 of the water purifier A, and the purified water exits the outlet 5 and is connected to the second pipe d ₂ . 3 flows from line d ₃ of intersection of the tube opening 25 into conduit.

Some of the water in the second pipe line d in ₂ flows from the inlet 8 of the health agent addition device B out of the tubular opening 26 in the vessel, health agent is added water exits the outlet 9 The solution is sent from the anode chamber side inlet 18 of the electrolytic cell C into the cell. The water of the second conduit d in ₂ passes through the constant flow rate control section E, transmitted from the cathode chamber side inlet 16 exits the tube outlet portion 27 the anode chamber side inlet 18 in the tank.

On the other hand, in the third conduit d ₃ , the ball 30 moves due to the fluid pressure, the valve port 31 is closed, and the diaphragm 28 is pressed by the fluid pressure generated there, and the displacement of the projection 29 causes the microscopic displacement. The switch S is turned on, the power supply circuit (not shown) of the electrolytic cell C is turned on, and the electrolytic cell is started.

In the electrolytic cell C, alkali ionized water (cathode water) and acidic water (anode water) are continuously generated by electrolysis of water, and the alkali ionized water is supplied from an outlet 19 through a hose 40,
It is taken out as drinking water, and the acidic water is hosed from outlet 17
Retrieved via 39.

Alkaline drinking water obtained by the treatment of the water purifier A, the health agent additive B and the electrolytic cell C is safe, delicious, and contains minerals since most of the harmful substances contained in tap water are removed. It becomes drinking water containing a health agent component.

Next, when the water tap is closed and the supply of water is stopped, the water pressure disappears, the diaphragm 28 returns, the microswitch S is turned off, and the operation of the electrolytic cell C stops. Further, since the ball 21 and 30 of the check valve portion away from the valve port 22 and 33, the remaining water in the electrolytic bath and health additive unit is returned by the drop in the second conduit d _2, through the valve port 31 , Is taken out of the tube opening 32 via a hose (not shown).

Further, when the diaphragm returns, a voltage of the opposite polarity is applied to the electrolytic cell, a cleaning process is performed for a certain period of time while remaining water in the electrolytic cell is discharged, and the liquid is discharged to the outside from the tube opening 32.

With the provision of the constant flow control unit E in the centralized flow path control unit D, the flow of water to the electrolytic cell C is controlled not only to a substantially constant flow rate even if there is a fluctuation in water pressure, but also to a water purifier. Also in A, the flow velocity is always controlled to be constant.

Next, means for informing and displaying the filtration capacity life of the water purifier will be described based on the electric circuit of FIG.

In the figure, 43 is an AC power supply, and a power switch 4
6, via contacts r ₁ of fuses 47 and relays R ₁ is connected to the primary side of the transformer 48, the primary side of the transformer the transformer 49 is connected to the power source 43 via a fuse 47 and the primary side of the transformer 48 is , Input and resistance of photocoupler 50
51 is connected to the power supply 43 via the switch 46 and the fuse 47.

A rectifier circuit 52 is connected to the secondary side of the transformer 48. This is the output of the rectifier circuit 52, the polarity reversal relay R ₂ of contacts of the electrolyzer via the smoothing capacitor 53 (r ₂ -
1), (r ₂ -2) is connected, the contacts of the relay is adapted to be switched by the control circuit 54. A rectifier circuit 55 is connected to the secondary side of the transformer 49.

In the control circuit 54, the output of the rectifier circuit 55 is supplied to the relays R ₁ and R ₂ , the power supply display light emitting diode L ₁ , the electrolytic display light emitting diode L ₂ , and the electrolytic cleaning through the output of the smoothing capacitor 56 and the microcomputer 57. The display light emitting diode L ₃ and the water purifier life display light emitting diode L ₄ are connected. The inputs of the microcomputer 57 include the pressure switch S of the centralized flow path control unit D, the water purifier life reset switch S ₁ , and the calcium concentration changeover switch S _2.
Is connected. The output of the photocoupler 50 is connected to the input of a microcomputer 57.

In the electric circuit having the above configuration, the rectifier circuit 55 and the capacitor are always supplied from the power supply 43 through the fuse 47 and the transformer 49.
The DC voltage rectified and smoothed via 56 is applied to the microcomputer 57 to prepare for use.

Therefore, turning on the power switch 46, the photocoupler 50 is turned on, which the microcomputer 57 detects turning on the power indicator light emitting diode L _1. Next, when the water tap is opened and water is supplied, the pressure switch S is operated to be turned on, and this is turned on by the microcomputer 57.
There was detected, it is biased relay R ₁ is closed contact r _1, a predetermined polarity of the DC voltage of the relay R ₂ contacts from the rectifier circuit 52 (r ₂
-1), it is applied to the (positive terminal of the r ₂ -2) through the electrolytic cell the anode 13 (13-1) and the negative terminal of the cathode 11 (11-1), the electrolytic cell is activated. At the same time, the microcomputer 57, and displays starts counting water passage time of water purifier that the electrolyte in by turning the electrolytic display light-emitting diode L _2.

When the water tap is closed, water flow is interrupted, so the pressure switch S is turned off, and power supply to the electrolytic cell electrode is cut off.
Count of the microcomputer 57 is also stopped, the diode L ₂ is also turned off for electrolytic display.

As described above, when water supply and interruption are repeated and the count amount accompanying the water passage time to the water purifier reaches the set notice amount (total water amount passing through the water purifier), the microcomputer 57 displays the water purifier life display. It flashes the use light emitting diode L ₄ to notice the time to replace the water purifier cartridge case with.
Further when the count quantity continues to use has reached the set lifetime amount, notifying the exchange of water purifier by lighting the diodes L _4.

The graph of FIG. 12 shows a state where the count amount with the passage of time due to the repetition of the water supply and interruption reaches the set notice amount and the set life amount, where T is the set life count amount from the start of water supply. Time to reach, also t ₁
~t ₄ in each within the time T, is an indication that the counting of the microcomputer is performed.

Incidentally, the control circuit 54, in accordance with the chlorine concentration of the raw water, by setting the chlorine concentration changeover switch S _2, by changing the setting notice amount and setting the life of the count of the microcomputer, the exchange of water purifier The time can be notified accurately.

After replacing the water filter cartridge case, check the water purifier life reset switch S _1, and clears the count of the microcomputer, comprising the following use.

The means for controlling the flow of water to the water purifier at a constant flow rate is not limited to the constant flow rate control unit shown in the above embodiment, and other control means may be used arbitrarily.

[Effects of the Invention] As described above, according to the water treatment apparatus including the water purifier of the present invention, the operation time of the apparatus is determined by detecting the flow of the raw water provided in the centralized flow path control unit by the switch means. ,
The sum of the operation times is defined as the water passage time of the water purifier, and the total water volume of the water purifier is calculated by converting the total water volume of the water purifier, thereby accurately knowing the filtration capacity of the water purifier. Since the notification can be displayed as the cartridge replacement time, not only can the water purifier cartridge be replaced easily, but also the display error caused by water purifier replacement can be reduced.
The practicality of the water purifier can be dramatically improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a water treatment apparatus showing one embodiment of the present invention,
FIG. 2 is an exploded configuration view, FIG. 3 is a cross-sectional view of a centralized flow control unit, FIG. 4 is an exploded perspective view of a constant flow control unit, FIG. 5 is an assembled perspective view, and FIG. 7 is a perspective view showing the internal filtration layer of the water purifier, FIG. 8 is a graph showing a residual chlorine removal curve of the treated water in the water purifier, FIG. Fig. 10 is an exploded perspective view showing fixing means of the water purifier cartridge case, Fig. 10 is an enlarged sectional view of a main part thereof, Fig. 11 is an electric circuit diagram, and Fig. 12 is a count amount of water passing time to the water purifier and filtration. It is the graph which showed the relationship with ability. 1 ... box, A ... water purifier, B ... health agent additive, C ...
... electrolyzer, D ...... centralized channel control unit, d ₁ ...... first conduit, d ₂ ...... second conduit, d ₃ ...... third conduit, E ...... constant flow rate control unit, S ... ... Micro switches, 20,23,25,26,27,32,34
…… Pipe mouth, 3 …… Activated carbon, 3a …… Reducing inorganic substance, 41
…… Valve, 41a …… Water hole, 41b …… Water groove, 42 …… Receptacle, 42a …… Water hole, L ₁ … Light-emitting diode for power display, L ₂ …… for electrolytic display Light-emitting diode, L ₃ …… Light-emitting diode for electrolytic cleaning display, L ₄ …… Light-emitting diode for water purifier life display, S ₁ …… Water purifier life reset switch, S ₂ ……
Calcium density switch, 54 ... Control circuit, 57 ... Microcomputer.

Continuation of the front page (56) References Japanese Utility Model Showa 56-84089 (JP, U) Japanese Utility Model Hei 1-1704491 (JP, U) Japanese Utility Model Showa 60-123628 (JP, U) Japanese Utility Model Showa 60-1555993 (JP) , U) (58) Field surveyed (Int. Cl. ⁷ , DB name) C02F 1/28 C02F 1/46

Claims (1)

(57) [Claims] 1. Purified raw water through a water purifier filled with activated carbon and a reducing inorganic substance in a layered manner, and the purified filtered water is controlled by a constant flow control means provided in a flowing water passage from the water purifier to the electrolytic cell. In addition, in the water treatment apparatus which starts the electrolysis in the electrolytic cell by operating the switch means for sensing the flow of the raw water provided in the centralized flow path control unit, the sensing of the flow of the switch means is regarded as the operation time of the apparatus. A water treatment apparatus, wherein the sum of the operation times is defined as the water passage time of the water purifier, the total amount of water passing through the water purifier is converted, and a notice is displayed when the water amount reaches a set amount. .