JP2744395B2 - Water purification equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for a water treatment tank such as a water purification device for supplying raw water such as tap water and groundwater as drinking water for general household use and business use, and has an adsorbent having reduced adsorption purification ability. To a device for playing back.

[0002]

2. Description of the Related Art Generally, in a water purification device as a water treatment device, hypochlorous acid (C) contained in raw water such as tap water and groundwater is used.
Residual chlorine components such as lO ⁻ ) and organic chlorine-based compounds, musty odor, trihalomethane, general bacteria and pigments are adsorbed and removed by an adsorbent such as activated carbon. By use over time,
By activated carbon and adsorbent material thus adsorbed on the containing recess walls, algae, because the bacteria and microorganisms to breed, or to increase the load of the filter, or lowering the device life. Since the function of activated carbon is reduced by the adsorbed substance, the adsorbed substance is desorbed to regenerate the activated carbon, and by incorporating various sterilization means into the device, the water purification efficiency is improved.
It supports equipment maintenance and maintenance.

[0003]

By the way, it is necessary to accurately determine when the adsorption capacity of activated carbon has decreased or when the ability has decreased, and to take a regeneration treatment to restore the function.
Activated carbon, of course, leads to a prolonged life of the apparatus itself, and it is desirable that each means for determination and regeneration be as simple as possible.

[0004] An object of the present invention is to set the timing of the decrease in the adsorption capacity based on experience, and to easily regenerate the adsorbent at suitable intervals, thereby improving the durability of the apparatus itself as well as the adsorbent. It is to provide a water purification device.

[0005]

To achieve this object, a water purifier according to the present invention is characterized in that, in claim 1, a voltage is applied.
A tank that brings raw water into contact with the adsorbent that generates heat when added ,
A pair of electrodes for applying a voltage by contacting or immersing in the adsorbent; flow rate detecting means for detecting that the accumulated amount of treated water purified by contact with the adsorbent exceeds a set amount or a set time; And a control device for transmitting a control signal for applying a voltage between the electrodes when a detection signal is output from the detection means.

According to a second aspect of the present invention, a pump for sucking and discharging the treated water is provided, and when the accumulated amount of the treated water discharged from the pump exceeds a set amount, it is detected by the flow rate detecting means and based on the detection signal. It is also possible to have a configuration in which an off signal for stopping the operation of the pump is transmitted from the control device and a control signal for applying a voltage between the electrodes is transmitted.

According to a third aspect of the present invention, a filter member containing an adsorbent in a double cylindrical body comprising an outer filter and an inner filter through which raw water can pass is disposed in the tank so that its axis is vertically aligned. In this configuration, the treated water is stored in the inner water storage section of the inner peripheral filter.

According to a fourth aspect of the present invention, the electrode can be formed in a ring shape to close the upper and lower openings of the double cylindrical filter member so that the electrode can contact the adsorbent.

According to a fifth aspect of the present invention, the raw water is drained and extracted from the entire area of the tank including the water storage section before the reproduction signal is transmitted.

According to a sixth aspect of the present invention, a switching valve is provided in an introduction pipe for introducing raw water into the tank, and the switching valve is switched by a switching signal from a control device to drain and drain raw water from the entire area including the water storage section. Is also possible.

According to a seventh aspect of the present invention, a temperature detecting means is provided in the adsorbent, and an off signal is sent to the electrode based on a detection signal indicating that the temperature of the adsorbent has exceeded a set temperature to stop voltage application. Can also.

[0012]

In the case of the first aspect, the flow rate detecting means detects that the accumulated amount of the purified treated water exceeds the set amount, and applies a voltage to the electrode from the control device based on the detected signal to thereby adsorb the adsorbent. The substance adsorbed on the substrate is desorbed. By managing whether the accumulated amount of the treated water has reached the set amount, the regeneration time of the adsorbent can be set as an interval. Discharge of the treated water from the tank can be achieved by water pressure extruding raw water from a supply source.

In the case of claim 2, for example, a self-contained pump is provided instead of using the water pressure of the raw water supply source according to claim 1.
The flow rate detecting means detects that the accumulated amount of the treated water discharged from the pump exceeds the set amount.

In the case of claim 3 to claim 6, before sending out the reproduction signal, if the raw water is drained from the entire area including the water storage part of the double cylindrical filter member, the raw water is extracted from the adsorbent and a voltage is applied, Desorption of the adsorbed material is more efficient.

According to a seventh aspect of the present invention, when the adsorbent is heated by applying a voltage, the temperature of the adsorbent is detected, and when the temperature exceeds a set temperature, an off signal is sent to the electrode to stop the voltage application, thereby enabling power supply control. Thus, power consumption can be reduced.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the water purification apparatus according to the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a water purification apparatus according to an embodiment. For example, tap water is introduced from a supply water source through the inlet 11 as raw water to be purified into the main body tank 10 which is entirely formed into a cylindrical shape. The inlet 11 also serves as a drainage pipe, and is provided with a three-way switching valve (three-way valve) 12 using an electromagnetic valve for switching to introduction or drainage of raw water. The three-way valve 12 operates in response to a switching signal to introduce raw water into the main body tank 10, and conversely, during regeneration of the adsorbent which is the gist of the present invention, drains residual raw water into the main body tank 10 to empty it. It is set for both functions of water supply and drainage in case.

A double cylindrical filter member 20 is accommodated in the main body tank 10 with its axis parallel to the vertical direction. The filter member 20 includes an outer filter 21 and an inner filter 22 through which raw water can pass, and a donut-shaped space between both filters is filled with activated carbon 23 as an adsorbent. Adsorbent in the present invention is a conductive heating element, electrostatic
Self-heating when pressure is applied.
If it does , the used adsorbent is not limited to activated carbon 23. As is clear from FIG. 1, the size of the member is set so that an annular space 24 is formed between the main body tank 10 and the inner peripheral surface along the outer peripheral filter 21.
Tap water introduced from the raw water introduction port 11 into the main body tank 10 circulates around the gap 24, passes through the outer filter 21, and can contact the activated carbon 23 inside. Tap water that has been purified by passing through the activated carbon 23 is once drawn out of the inner peripheral filter 22, that is, the central space of the filter member 20 as a water reservoir 29.

As shown in FIGS. 2 to 5, the upper and lower openings of the double cylindrical filter member 20 are closed by fitting a pair of electrodes 25 and 26 formed into a donut disk shape. The electrodes 25 and 26 have terminals 25a and 26, respectively.
a is provided and protrudes out of the main body tank 10 to prepare for electric wiring. Also, several convex portions 25b, 26b are provided on the inner surfaces of the electrodes 25, 26, respectively. These are buried in the activated carbon 23 to ensure contact, and at the same time, the electrodes 25, 26 , 26 are positioned. The filter member 20 containing the activated carbon 23 and the electrodes 25 and 26 are supported by a mounting plate 27 from below. As shown in FIG. 4 and FIG.
Is a disk fitted into the inner periphery of the main body tank 10 and provided with a space 13 below for preparation of raw water introduction or drainage and fixed. A large number of through holes 27 a through which raw water can pass are provided in the outer peripheral portion of the mounting plate 27, and the raw water in the space 13 can be introduced from the through hole 27 a into the gap 24 on the outer peripheral side of the filter member 20. I have. On the contrary, at the time of drainage, the water is discharged from the space 24 to the space 13 below. A ring-shaped pre-filter 28 is provided so as to overlap with the through hole 27 a, and is configured to filter raw water before it comes into contact with the activated carbon 23.

On the other hand, a UV lamp (sterilizing means) 30 is disposed in the inner space of the inner peripheral side filter 22 of the filter member 20, and the raw water passing through the activated carbon 23 is further sterilized by ultraviolet rays irradiated by energizing the UV lamp 30. It has become. Further, an ozone introduction pipe 31 is introduced alongside the UV lamp 30, and an ozone generator 3 (not shown) supplies an ozone introduction pipe 3.
Ozone (O ₃ ) can be supplied through 1, and the sterilizing effect of the ozone is enhanced by the ozone as well as the sterilization by the UV light of the UV lamp 30.

Along with the UV lamp 30 and the ozone introduction pipe 31, an intake pipe 33 of a self-contained pump 32 for pumping raw water that has been purified and sterilized for use in the inner space of the inner peripheral filter 22 is provided. I'm facing. The discharge pipe 34 of the self-contained pump 32 is provided with a flow detector (means) 36 for detecting the pump discharge amount.
When it exceeds (accumulated amount of treated water) , this is detected and a signal is sent to the control device 40 shown in FIG. The discharge pipe 34 is provided with a three-way switching valve 35 using an electromagnetic valve, and a drain pipe 37 is also connected to the switching valve 35 so as to be switchable.

In the embodiment, the self-contained pump 32 is used for extracting the treated water. However, the treated water can be discharged from the main tank 10 by using the pressure of the raw water supplied from the supply source. In this case , the self-contained pump 32 is unnecessary.
In addition, the flow rate detector 36 may be arranged at a suitable place of the discharge pipe for discharging the treated water at the time of use.

Further, in the embodiment, the set integrated amount of the pump discharge amount is managed by the flow rate detector 36. However, if the discharge amount can be empirically assumed to be constant over time, a setting equivalent to the set flow amount is set. It is also possible to manage the time by measuring a timer. When only the water purification function is required without the need for the sterilization function, the size can be further reduced by removing the UV lamp and the ozone introduction tube.

In the block diagram of the control circuit shown in FIG. 6, a control unit 40 such as a microcomputer comprises a central processing unit (CPU) 41, a memory 42, an I / O port 43, etc., a flow rate detector 35 and an operation input. Control is performed based on a program stored in the memory 42 by a detection signal input from the switch 38 to the I / O port 43, and a control signal is transmitted from the I / O port 43 to an external device to be controlled, that is, a self-contained pump. 32, a switching valve 35 of a discharge pipe 34, a pair of electrodes 25 and 26, a UV lamp 30,
Then, an on / off signal is sent to a generator or the like that supplies ozone to the ozone introduction pipe 31.

Next, the operation mode and operation of the embodiment having the above configuration will be described with reference to the flowchart of FIG. 7 and the time charts of FIGS. 8 and 9.

During normal use, the switching valve 12 is switched by a switching signal from the control device 40, and raw water for processing, for example, tap water, is introduced into the main tank 10 from the inlet 11 (step S ₁ ). Tap water passes through the through hole 27 a of the mounting plate 27 from the lower space 13, is filtered by the pre-filter 28, and enters the surrounding space 24 of the filter member 20. From here, the tap water passes through the outer filter 21, comes into contact with the activated carbon 23, is purified, and is introduced into the central water storage 29 through the inner filter 22. Dissolved substance contained in tap water by contact with activated carbon 23, such trace organic chlorine compounds, diosmin is a cause material of trace organic compounds and musty, like 2-methyl-isoborneol is adsorbed and removed (step S _2).

At the timing when the water storage section 29 is almost full of the treated water, the self-contained pump 32 is started to operate by operating the input switch 38 for starting the apparatus, and at the same time, the discharge pipe 3 is turned on.
The switching valve 35 of No. 4 is operated to prepare for pouring during use. At this time, an ON signal is also sent from the control device 40 to the UV lamp 30, and ozone is supplied from the ozone generator to the treated water in the central water storage unit 29 through the ozone introduction pipe 31 and mixed therein. That is, ultraviolet light from the UV lamp 30 is applied to the purified water that has been removed and introduced into the central space after the dissolved substances have been removed, and ozone is supplied from the ozone introduction pipe 31 and mixed therein. Thereby, bacteria in the treated water are sterilized, and algae, organic compounds, inorganic compounds, and the like are oxidatively decomposed (step S).
₃ ). Thus purified, sterilized treated water is sucked into the self-contained pump 32 through the suction pipe 33, discharged from the discharge pipe 34 provided to dispense in use, it is subjected to water or the like (step S _4).

On the other hand, the self-contained pump 3
When the pump discharge quantity of 2 exceeds the set integration amount, which is detected by the flow detector 36 provided in the discharge pipe 34, and sends a signal to the controller 40 (step S _5). That is, since the detection signal is sent from the flow rate detector 36, it is determined that the adsorption ability of the activated carbon 23 in the filter member 20 is reduced, and the control device 40 restores the function of the activated carbon 23 in the following procedure. Is applied.

On the basis of the detection signal from the flow rate detector 36, the control device 40 issues a warning or a display signal urging regeneration, and at the same time, operates the self-contained pump 32, energizes the UV lamp 30, and supplies the ozone introduction pipe. An off signal for stopping the supply of ozone from 31 is sent out (step S ₆ ).

Synchronously with this, a switching signal is sent to the switching valve 12 on the side of the raw water inlet 11, and the raw water introducing port up to that point is closed, and the drain port is opened to open the remaining tap water in the main tank 10. Drain and empty. That is, the tap water in the activated carbon 23 that is in contact with the treated water and the treated water introduced into the central water storage section 29 are all discharged in this case. Wastewater by reverse flow through the hole 27a through this outer annular gap portion 24 leaves the outer peripheral side filter 21, to an external drain the inlet 11 as drainage port (step S _7).

[0031] Then, a voltage is applied between the electrodes 25 and 26 disposed above and below the filter member 20, by heating the resistor by energizing the activated carbon 23, the adsorbent material is desorbed (Step S ₈ ). After the voltage is applied for an arbitrary time, an off signal is sent from the control device 40 to the electrodes 25 and 26, and the application of the voltage is stopped. Thereafter, switched to normal use operation returns to the step S ₂ (step S _9).

In the above embodiment, the following advantage is obtained by forming the filter member 20 as a double cylindrical body and passing the raw water from around the outer periphery thereof. That is, the inner peripheral filter 2
The interior of the main tank 10 is divided into a water purification area and a sterilization area by using a single tank so that the inside of the main tank 10 can be used for both purposes. That is, while this type of apparatus has conventionally been a two-tank type in which a water purification tank and a sterilization tank are separately provided, the present invention allows the entire apparatus to be simplified and reduced in size. Another advantage is that the surface of the raw water passes through the outer filter 21 around the void 24 in the outer peripheral region, so that the surface area of the raw water that passes through the activated carbon 23 is further increased, and as a result, pressure loss is reduced. Is done. As another advantage, by using a fibrous material for the activated carbon 23 as an adsorbent,
The energization efficiency by the electrodes 25 and 26 arranged above and below is good. Finally, as an advantage, since the surface area of raw water passing through the activated carbon 23 is large, contamination of the adsorbent layer by the activated carbon 23 can be reduced, and the thickness of the layer can be reduced.
Facilitate removal of dirt when you water, it is possible to enhance the cleaning effect.

FIG. 10 and subsequent drawings show a second embodiment of the present invention, and are cross-sectional views of a float type water purifier 60 set in a new or existing large water tank 50. FIG. In the water tank 50,
For example, tap water as raw water to be purified is introduced into the introduction line 5.
1 through a water source. Float type water purifier 60
Is set in a state of being floated on raw water in a water tank 50, and treated water obtained by purifying and sterilizing the raw water is discharged from a discharge pipe 54 having a discharge valve 53 connected to an outlet 55, and drinking water, etc. It is to be offered to. The upper part of the water tank 50 is closed by a manhole 56, and the manhole 56 may be provided with a raw water inlet 52 connected to the inlet conduit 51.

The float type water purifying tank 60 is provided in the existing water tank 50.
When retrofitting is required, the manhole 56 of the water tank 50 is opened, the entire water purification tank 60 is floated on the raw water, necessary piping and electric wiring are performed, and no special construction is required for installation. The entire device 60 has a structure capable of floating in raw water, and the raw water pumped by a self-contained pump 61 mounted thereon can be purified and sterilized and returned to the water tank 50 again. Device 6
No. 0 has a buoyancy member 62 capable of floating on the raw water surface by buoyancy, and the buoyancy of the buoyancy member 62 causes the main body composed of the first and second inner and outer cylinders 70 and the second tub 80 to be removed from the raw water surface. Can be held within.

Here, the first tank 70 is filled with activated carbon 75 as an adsorbent. The bottom 71 of the first tank 70 riser pipe 72 is provided for sucking the raw water in the water tank 50 by the self-contained pump 61, the riser pipe 72 to accommodate the different sizes of the water tank 50, the fixed tube 72a By sliding the movable tube 72b, the total length H of the tube length can be adjusted. Water-permeable filters 73 and 74 are provided above and below the first tank 70.
Is provided so as to close the caliber section, and is configured to filter raw water introduced from the pumping pipe 72. An adsorbent between the upper and lower filters 73 and 74 , that is, the above-described embodiment is used.
Activated carbon 75 that self-heats when a voltage is applied in the same manner as described above.

Further, in the first tank 70, means for regenerating the adsorbent, ie, the activated carbon 75, which is a gist of the present invention, is provided. Major members constituting the reproducing means is a pair of electrodes 76, 76. Both electrodes 76, 76 are in the first tank 7
Within 0, they are arranged so as to form opposite electrodes at both ends in the radial direction. The two electrodes 76, 76 are arranged in the same shape, each having a terminal rod 76a inserted into the upper lid 77 of the first tank 70 via an insulating member 78, and an external lead wire is wired to the terminal rod 76a. An electrode plate 79 made of stainless steel or the like is connected to the lower end of the terminal rod 76a. The electrode plate 79 is formed in an arc shape along the inner peripheral surface of the first tank 70. Immersive contact. Forming in an arc shape is effective because the contact area with the activated carbon 75 increases. A voltage is applied between the pair of electrodes 76, 76, and the conductive activated carbon 7 is
5, and the structure is heated.

On the other hand, in the first tank 70, the second
The tank 80 is stored. The second tank 80 includes the first tank 7
0 is a tank for the purpose of further sterilizing purified water treated by contact with activated carbon 75. The second tank 80 has water-permeable filter members 81 and 82 so as to close the upper and lower sides, and can purify the purified water from the first tank 70 and introduce it into the inside. Also, the UV light is inserted through the center axis.
A lamp (sterilizing means) 83 is disposed, and the purified water is sterilized by ultraviolet rays irradiated by energizing the UV lamp 83. An ozone introduction tube 84 is introduced into the second tank 80 with the axis parallel to the UV lamp 83, and ozone (O ₃ ) can be supplied from an ozone generator (not shown) through the ozone introduction tube 84. In addition to the sterilization by 83 ultraviolet rays, ozone enhances the sterilization effect.

The second tank 80 is provided with the self-contained pump 6 described above.
1 is connected by piping through a suction pipe 85. The suction pipe 85 extends from the lower filter 81 of the second tank 80 to the first tank 70.
It is inserted through an adsorption layer made of activated carbon 75 inside, goes out of the tank, and is connected to the suction side of the self-contained pump 51. The discharge pipe 57 of the self-contained pump 61 is provided with a flow rate detector 58 for detecting the pump discharge amount. Device 4
0 is sent.

Further, FIG. 13, in place of the electrode 7 6 for the embodiment shown in FIGS. 11 and 12, a modification aimed compact structure. In this case, the electrode 90 is formed in the shape of a straight rod having a sharp tip, and only needs to be inserted into the activated carbon 75 in the first tank 70 and set. In the case of the second embodiment, the raw water in the water tank 50 is sucked into the first tank 70 of the float type water purification tank 60 from the lower pumping pipe 72 by the operation of the self-contained pump 61. The fact that the raw water is introduced into and brought into contact with the activated carbon 75 in the first tank 70 from the lower bottom pumping pipe 72 means that microorganisms first inhabit the lower layer of the activated carbon 75, thereby forming a biological filtration membrane. And there is an advantage that the filtration capacity is improved. Further, the pipe length H of the pumping pipe 72 is freely adjusted according to the size of the water tank 50. The raw water introduced into the first tank 70 after being filtered by the filter 73 comes into contact with the adsorption layer formed by the activated carbon 75, and is a dissolved substance contained in the raw water, for example, a trace organic chlorine compound, a trace organic compound, or a substance causing mold odor. A geosmin, 2
Methyl isoborneol and the like are adsorbed and removed.

The purified water from which the dissolved substances have been removed from the raw water is then introduced into the second tank 80 after being filtered by the filters 81 and 82. The introduced purified water is irradiated with ultraviolet rays from a UV lamp 83, and ozone is also supplied from an ozone generator through an ozone introduction pipe 84. Thereby, bacteria of the purified water are sterilized, and algae, organic compounds, inorganic compounds, and the like are oxidatively decomposed. The treated water thus purified and sterilized is sucked into the self-contained pump 61 through the suction pipe 85, discharged from the tip of the discharge pipe 57, and returned into the water tank 50. Repeated circulation back to the purification and sterilization pumping raw water, when using purification sterilization water in the water tank 50 is pouring valve 53
And supplied to drinking water and the like from the discharge pipe 54 provided with.
In the case of regenerating activated carbon in the second embodiment
Is carried out by pulling out the float type water purifying tank 60 from the water surface.
You may. In FIG. 11, the electrode plate 79 and the terminal rod 76a are shown.
Terminal rod 76a fills up to clarify the connection relationship with
FIG. 12 clearly shows a state in which the
Positional relationship between electrode plate 79, terminal rod 76a and insulating member 78
In order to make the terminal rod 76a and the insulating member
78 is illustrated.

In the first and second embodiments of the present invention, the cumulative set amount of the discharge flow rate of the self-contained pump is set as a target for the regeneration timing of the activated carbon, and whether or not the cumulative set amount is exceeded. A method of detecting the presence or absence and performing reproduction control has been adopted. However, in the present invention, a means for detecting the temperature of the activated carbon (or the tank body) is provided in place of the voltage application timer, and it is detected whether or not the detected temperature exceeds a set temperature, and the voltage applied to the electrode is reduced. On / off control is also possible. FIG. 14 is a characteristic curve showing the correlation between the detected temperature of activated carbon and the voltage applied to the electrode. In this case, assuming that the desorption efficiency η of the adsorbed substance is η ₁ when the form of the activated carbon is fibrous and η ₂ when the form of the activated carbon is fibrous, the fibrous activated carbon desorbs in one hour at an applied voltage It is understood that the separation efficiency is high. Further, FIG. 3 also shows that when activated carbon is electrically heated by a heater or the like (curve T), desorption can be performed with considerably high efficiency.

[0042]

As described above, according to the water purifying apparatus of the first and second aspects of the present invention, the supply water pressure of the raw water supply source or the accumulated amount of the purified water discharged using the pump exceeds the set amount. At this time, since the time is detected by the flow rate detecting means to regenerate the adsorbent, there is an effect of improving the durability of the device as well as the adsorbent by proper regeneration.

According to the third to sixth aspects of the present invention, the remaining raw water is drained externally prior to regeneration, and a voltage is applied between the electrodes during regeneration to heat the adsorbent, so that the adsorbed substance is effectively desorbed. be able to.

According to the seventh aspect of the present invention, when the adsorbent is heated by applying a voltage, if the temperature of the adsorbent exceeds a set temperature, the application of the voltage to the electrodes can be stopped, which is effective in saving power consumption. .

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of a water purification device according to the present invention.

FIG. 2 is a plan view of the electrode of the first embodiment.

FIG. 3 is a sectional view of the electrode of FIG. 2;

FIG. 4 is a plan view of an electrode and a mounting plate of the first embodiment.

FIG. 5 is a sectional view of the electrode of FIG. 4;

FIG. 6 is a block diagram of a control circuit according to the embodiment;

FIG. 7 is a flowchart showing an operation mode of the apparatus according to the embodiment.

FIG. 8 is a time chart showing a correlation with an applied voltage during reproduction.

FIG. 9 is a time chart showing a correlation with a set integrated flow rate during regeneration.

FIG. 10 is a sectional view of a float type water purification apparatus according to a second embodiment of the present invention.

FIG. 11 is a cross-sectional view around an electrode portion of the second embodiment.

FIG. 12 is a plan sectional view of FIG. 11;

FIG. 13 is a sectional view around an electrode portion as a modification of the second embodiment.

FIG. 14 is a characteristic curve diagram showing the correlation between the detected temperature of activated carbon as an adsorbent and the voltage applied to the electrode.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Main body tank, 11 ... Raw water introduction port, 12, 35 ... Three-way electromagnetic switching valve, 20 ... Filter member, 21 ... Outer periphery filter, 22 ... Inner periphery filter, 23 ... Activated carbon (adsorbent),
25, 26 ... electrode, 27 ... mounting plate, 29 ... central water storage,
30 UV lamp, 31 ozone introduction pipe, 32 self-contained pump, 33 suction pipe, 34 discharge pipe, 36 flow rate detector, 40 control device, 60 float type water purification device.

Claims (7)

(57) [Claims] 1. A tank for bringing raw water into contact with an adsorbent that generates heat when a voltage is applied, a pair of electrodes that contact or bury the adsorbent to apply a voltage, and treated water purified by contact with the adsorbent. features of the flow rate detecting means for detecting that the accumulated amount exceeds a set amount, further comprising a controller for sending a control signal for applying a voltage between the electrodes when a detection signal from the flow rate detecting means is outputted And water purification equipment. 2. A pump for sucking and discharging treated water is provided, a flow rate detecting means detects that a cumulative amount of treated water discharged from the pump exceeds a set amount, and a control device based on the detected signal. The water purification device according to claim 1, wherein an off signal for stopping operation of the pump is sent, and a control signal for applying a voltage between the electrodes is sent. 3. A filter member containing an adsorbent in a double cylindrical body composed of an outer filter and an inner filter through which raw water can pass, is disposed inside the tank so that the axis is aligned in the vertical direction. The water purification device according to claim 1, wherein the treated water is stored in a water storage part in an inner space of the side filter. 4. The water purification apparatus according to claim 1, wherein the electrode is formed in an annular shape for closing the upper and lower openings of the double cylindrical filter member and is capable of contacting the adsorbent. 5. The water purification apparatus according to claim 1, wherein the raw water is drained and extracted from the entire area including the water storage section before sending the reproduction signal. 6. The switching valve to the introduction pipe for introducing the raw water provided in the tank is withdrawn and drained raw water from the bath in the entire region including the water storage section with the switching of the switching valve according to the switching signal from the control device according to claim 1 or The water purification device according to claim 4. 7. The method according to claim 1, further comprising the step of: disposing a temperature detecting means in the adsorbent, sending an off signal to the electrode based on a detection signal indicating that the temperature of the adsorbent has exceeded a set temperature, and stopping the voltage application. Water purification equipment.