JPH04104890A - Water purifying device - Google Patents

Abstract

PURPOSE:To easily and surely wash the ceramics grains in a filter tank by providing a washing means for washing carriers, such as ceramic grains, provided in a circulating route in a microorganism filter device constituted by sticking microorganisms to the surface of the above-mentioned carriers. CONSTITUTION:Bath tub hot water is sucked from a suction port 2 when a pump 9 of the water purifying device body 7 is driven. The bath tub hot water is passed in the state of removing human hair, etc., through a suction pipe 5 into the water purifying device body 7. The bath tub hot water is filtered by a physical filter device 10 and further, small org. matter is removed by the microorganism filter device 11. The water is sterilized by a UV sterilizer 12 and is made into a completely clean state. The ceramic grains 17 in the filter tank 16 are vibrated by the operation of a vibrator 18 when a flow rate sensor 14 detects the decrease in the flow rate and operates a switch provided on the outside surface of the filter device 7. The microorganisms propagating on the surface of the ceramic grains 17 and water scum, etc., are removed from the surfaces of the ceramic grains 17 by these vibrations.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a purification device for purifying hot water in a bathtub.

[Conventional technology]

In recent years, purification devices have made it possible to save bath water and thermal energy by filtering the hot water in the bathtub with a filter, reheating it to an appropriate temperature with a heater, and returning it back into the bathtub. or has been proposed. As a type of filter for this purification device, a large number of ceramic grains with microorganisms attached to the surface are housed in a filtration tank, and by passing the bath water through the filtration tank, the bath water is purified with microorganisms. There's something I did.

However, the microorganisms on the surface of these ceramic grains multiply as the bathtub water is purified, which impairs the flow of the bathwater in the filtration tank, making it necessary to periodically wash the ceramic grains.

Conventionally, the ceramic granules have been washed by taking them out of the filtration tank and washing them directly by hand, or by temporarily reversing the flow of bath water in the filtration tank from the normal usage state. It was used to remove dirt from ceramic grains.

[Invention or problem to be solved]

However, in the conventional cleaning method described above, where the ceramic grains are removed from the filtration tank and washed directly by hand, there is a problem in that it is cumbersome to take out the ceramic grains from the filtration tank one by one.

In addition, backwashing was not able to sufficiently remove stains from ceramic grains, and was very ineffective.

The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a purification device that can easily and reliably clean ceramic grains in a filtration tank.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a circulation path outside the bathtub for circulating the hot water in the bathtub, and a carrier such as ceramic particles is placed in the circulation path. A microorganism filter device having microorganisms attached to its surface is provided, and the microorganism filter device is provided with a cleaning means for washing the carrier.

[Effect]

Therefore, in this invention, the carrier is washed by the washing means,
No hand washing or backwashing required.

〔Example〕

An embodiment embodying the present invention will be described below with reference to the drawings.

As shown in FIG. 1, in this purification device, a hot water suction nozzle 4 having a hot water suction port 2 and a hot water discharge port 3 is arranged in a bathtub l. A suction pipe 5 and a discharge pipe 6 communicating with the outlet 3 are connected,
The suction pipe 5 and the discharge pipe 6 constitute a circulation path 30. The suction pipe 5 is connected to the discharge pipe 6 via the purifier main body 7, so that the hot water in the bathtub 1 is circulated through the purifier main body 7 in the direction of the arrow shown in FIG. Further, a hair cassocket 8 is removably attached to the suction port 2 of the suction/exhaust nozzle 4, and is adapted to filter out relatively large particles such as hair, etc., in the bathtub.

Inside the purification device main body 7, there are a pump 9 for circulating hot water, a physical filter device 10 for physically filtering dirt etc. in the hot water, and a microbial filter device 11 for microbially filtering organic matter. An ultraviolet sterilizer 12 for sterilizing hot water and a heater 13 for heating the hot water to a desired temperature are connected in series, and each device in the purifier main body 7 is connected to the bath water introduced from the suction pipe 5. It passes through and flows out from the discharge pipe 6. Further, a flow rate sensor 14 for detecting changes in the flow rate of hot water is provided in the flow path between the pump 9 and the physical filter device 10, and a flow rate sensor 14 for detecting changes in the flow rate is provided on the outer surface of the purification device main body 7. An indicator lamp 14a is provided which turns on. Furthermore, in the flow path between the microorganism filter device 11 and the ultraviolet sterilizer 12, an electromagnetic valve 15 for stopping the circulation of hot water is provided in the flow path near the microorganism filter device 11.

Next, the detailed structure of the microorganism filter device 11 will be explained.

As shown in FIG. 2, in the microorganism filter device 11, ceramic particles 17 as a carrier are housed in a filtration tank 16, and microorganisms are attached to the surface of the ceramic particles 17. These microorganisms purify the bath water by adsorbing and decomposing organic matter in the bath water, and as the bath water is purified, the microorganisms multiply on the surface of each ceramic grain 17.

Also, an inlet 16a for bathtub water is provided at the upper end of the filtration tank 16, and the bathtub water flowing from the inlet 16a passes through gaps between ceramic grains 17 and flows from an outlet 16b provided at the lower end of the filtration tank 1G. It's starting to leak out.

Further, a vibrator 18 is provided on the outer surface of the filtration tank 16 for imparting vibration to the ceramic grains 17 in the filtration tank 16.
is attached, and by vibrating the ceramic grains 17 with the same vibrator 18, it is possible to remove breeding microorganisms and attached water scale from the surface of the ceramic grains 17. Further, a drain 19 is provided at the lower end of the filtration tank 16 for discharging removed microorganisms and the like to the outside together with the bath water, and a drain pipe 19a provided at the lower end of the train 19 is provided with a drain 19 for discharging removed microorganisms and the like to the outside together with the bath water. An electromagnetic valve 20 is provided for opening and closing the discharge of hot water, etc. A switch (not shown) for activating the vibrator 18 is provided on the outer surface of the purification device main body 7, and when the switch is operated, the vibrator 18 is activated, and at the same time, the microbial filter device 11 is activated. An electromagnetic valve 15 provided in the flow path between the drain 19 and the ultraviolet sterilizer 12 is closed, and an electromagnetic valve 20 provided in the exhaust pipe 19a at the lower end of the drain 19 is opened.

Next, the operation of the purifying device configured as described above will be explained.

Now, in order to use this purification device, as shown in Fig. 1, the suction and exhaust nozzles 4 of the purification device are placed in a bathtub 1 filled with hot water in advance, and when the pump 9 of the purification device main body 7 is driven, the suction nozzle 4 is The bathtub water is sucked in from the bathtub, and the hair is removed by the hair catcher 8 before being introduced into the purification device main body 7 through the suction pipe 5. Then, the bath water is filtered by a physical filter device 10, smaller organic substances are removed by a microbial filter device 11, and sterilized by an ultraviolet sterilizer 12, resulting in a completely clean state.

The clean bathtub water is heated to a desired temperature by the heater 13, passes through the discharge pipe 6, and is discharged into the bathtub 1 from the discharge port 3 of the suction/discharge nozzle 4. By continuously performing the above-mentioned circulation, the hot water in the bathtub 1 is always kept clean and at an appropriate temperature, allowing the user to take a bath at any time during the day.

Further, as the bathtub water is purified, limescale etc. accumulate in the filtration tank 16 and microorganisms on the surface of the ceramic 22117 proliferate, resulting in poor flow of the bathtub water in the filtration tank 16. Then, the flow rate sensor 14 provided in the flow path of the bathtub water detects a decrease in the flow rate, and based on this detection, the indicator lamp 14a on the outer surface of the purifier main body 7 lights up. In this state, when the switch provided on the outer surface of the purification device main body 7 is operated, the vibrator 18 is activated, and at the same time, the electromagnetic valve 15 between the microbial filter device 11 and the ultraviolet sterilization device 12 is closed, and the drain 19 is closed. The electromagnetic valve 20 provided in the lower end exhaust pipe 19a is opened. Then, the filtration tank 1 is activated by the operation of the vibrator 18.
Vibration is applied to the ceramic grains 17 in the ceramic grains 17, and microorganisms, limescale, etc. that have grown on the surface of the ceramic grains 22117 are removed from the surface of the ceramic grains 17 by the vibrations. and,
Since the electromagnetic valve 15 between the microorganism filter device 11 and the ultraviolet sterilizer 12 is closed, the removed microorganisms, scale, etc. do not flow into the bathtub 1 through the circulation path 30, but instead flow from the train 19 together with the bath water. It is discharged. Therefore, the user must
The ceramic grains 17 in the filtration tank 16 can be easily and reliably washed by simply operating a switch when the button is turned on.

[Another example]

Next, another embodiment of the present invention will be described with reference to the drawings from FIG. 3 onwards.

First, in the second embodiment shown in FIG.
A bubble generator 21 is provided in a, and by injecting bubbles toward the ceramic grains 17 in the filtration tank 16, dirt on the surface of the ceramic 22117 is removed. . Further, another electromagnetic valve 27 is provided in front of the electromagnetic valve 15 provided in the flow path between the microorganism filter device 11 and the ultraviolet sterilizer 12, and a drain 28 is provided in the electromagnetic valve 27 to clean the ceramic grains 17. At times, the electromagnetic valve 15 is closed and the electromagnetic valve 27 is opened to discharge wastewater from the drain 28.

Therefore, in this embodiment, the train 19 shown in FIG. 2 is not provided.

In the third embodiment shown in FIG. 4, a stirring blade 22 is disposed inside the filtration tank 16, and the stirring blade 22 is rotated by a motor 23 provided at the upper end of the filtration tank 16. By stirring the grains 17, dirt on the surface of the ceramic 22117 is removed. The opening and closing timings of the electromagnetic valves 15 and 20 are the same as in the first embodiment.

In the fourth embodiment shown in FIG. 5, an ultrasonic generator 24 is provided on the outer surface of the filtration tank 16, and dirt on the surface of the ceramic 22117 is removed by bursting cavitation. still,
The opening and closing timings of the electromagnetic valves 15 and 20 are the same as in the first embodiment.

In the fifth embodiment shown in FIG. 6, another electromagnetic valve 25 is provided in front of the electromagnetic valve 15 provided in the flow path between the microorganism filter device 11 and the ultraviolet sterilizer 12, and the electromagnetic valve 25 is By providing a drain 26 and intermittently changing the internal pressure of the filtration tank 16 by intermittently throttling or closing the solenoid valve 25 with the solenoid valve 15 closed, the ceramic grains 17
Dirt on the surface is removed and dirty water is discharged from a drain 26 provided in the electromagnetic valve 25.

According to the second to fifth embodiments, the user can remove the ceramic grains 1 in the filtration tank 16 by simply operating the switch based on the lighting of the indicator lamp 14a of the purifier main body 7.
Cleaning in step 7 can be performed easily and reliably in the same manner as in the first embodiment.

Note that this invention is not limited to the above embodiments,
For example, the structure of each part can be changed arbitrarily without departing from the spirit of the invention, such as providing a honeycomb-shaped carrier in place of the ceramic particles 17 in the filtration tank 16.

[Effect of the Invention C As described in detail above, the present invention exhibits the excellent effect of being able to easily and reliably wash the ceramic grains in the filtration tank.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing a purification device according to a first embodiment of the present invention;
Figure 2 is a cross-sectional view showing the microbial filter device, and Figure 3 is a cross-sectional view showing the microbial filter device.
The figure is a sectional view showing the microbial filter device of the second embodiment, and FIG. 4 is a sectional view showing the microbial filter device of the third embodiment.
FIG. 5 is a sectional view showing a microbial filter device according to a fourth embodiment, and FIG. 6 is a sectional view showing a microbial filter device according to a fifth embodiment.

Claims (1)

[Claims] 1. A circulation path (30) for circulating hot water in the bathtub (1) is provided outside the bathtub (1), and the circulation path (30)
A microorganism filter device (11) in which microorganisms are attached to the surface of a carrier such as ceramic grains (17) is provided inside the microorganism filter device (11), and the microbial filter device (11) is provided with cleaning means (18, 21, 22, 24, 25)).