JPH04104891A - Purifying device - Google Patents

Abstract

PURPOSE:To easily and surly clean the ceramic granules in a filtration tank by providing a microorganism-filtering device sticking microorganism onto the surface of a carrier such as the ceramic granules and means of changing the flowing path in the microorganism filtering device in a circulating path. CONSTITUTION:When pump 9 in the main body of purifying device of main body 7 is drived, hot water for bathtub is sucked from a suction hole 2 and hot water for the bathtub is introduced into the purifying device main body through a suction pipe 5 in a state hairs, etc., are removed by the hair catcher 8. Further, hot water for the buthtub is filtered by a physical filtration device 10 and also further smaller organic matters are removed by the microorganism filtering device 11 and sterilized by an ultraviolet sterilization device 12 and become completely purified condition. By switching of a switching solenoid valve 18, the flow of the hot water for the bathtub into flow inlet 16a is interrupted, and by flowing out of hot water for the bathtub from each holes 19a in piping 19 through piping 19, flowing path of the hot water for the bathtub in the filtration tank 16 is changed, and for this reason, microorganism proliferated on the surface of the ceramic granules 17 and water scales are removed from the surface of the ceramic granules.

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. is 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 is something I did.

However, the microorganisms on the surface of these ceramic grains proliferate as the bath water is purified, which impedes the flow of the bath water in the filtration tank, so it is necessary to periodically wash the ceramic grains.

Conventionally, as a method for cleaning the ceramic grains, dirt on the ceramic grains has been removed by taking the ceramic grains out of the filtration tank and washing them directly by hand.

[Problem to be solved by the invention]

However, the conventional cleaning method described above has a problem in that it is complicated to take out the ceramic grains one by one from the filtration tank.

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 to solve the problem]

In order to achieve the above object, this invention provides a circulation path outside the bathtub for circulating the hot water in the bathtub, and in the circulation path, microorganisms are attached to the surface of a carrier such as ceramic particles. A filter device is provided, and a flow path changing means for changing the flow path within the microbial filter device is provided in the circulation path.

[Effect]

Therefore, according to the present invention, microorganisms grow in positions that are unlikely to cause flow path resistance during normal circulation of bath water, and by changing the flow path, the grown microorganisms are removed from the carrier, making hand washing unnecessary.

〔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 l circulates through the purifier main body 7 in the direction of the arrow shown in FIG. Further, a hair catcher 8 is removably attached to the suction port 2 of the suction/discharge nozzle 4, and is configured to filter out relatively large debris, such as incoming hair, in the whirlpool of the bathtub.

Inside the purification device main body 7, there is a pump 9 for circulating hot water, a physical filter device 10 for physically filtering dirt etc. in the whirlpool, a microbial filter device 11 for microbially filtering organic matter, and a pump 9 for circulating hot water. An ultraviolet sterilizer 12 for sterilizing water and a heater 13 for heating hot water to a desired temperature are connected in series, and bath water introduced from the suction pipe 5 is used to sterilize each device in the purifier main body 7. It passes through and flows out from the discharge pipe 6. Further, a flow rate sensor 14 is provided in the flow path between the pump 9 and the physical filter device 10 to detect changes in the flow rate of hot water, and a flow rate sensor 14 is provided on the outer surface of the purification device main body 7 to detect changes in the flow rate. An indicator lamp 14a that lights up based on the timing is provided.

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. A switching electromagnetic valve 1 is provided in the flow path between the microbial filter device 11 and the physical filter device 10 for switching the inflow path of bath water to the microbial filter device 11.
8 is provided, and one pipe 19 is connected to the switching electromagnetic valve 18, and the pipe 19 is connected to the microorganism filter device 1.
1 is connected to its inside from the top end.

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.

An inlet 16a for bathtub hot water is provided at the upper end of the filtration tank 16, and the bathwater flowing in from the inlet 16a passes through gaps between ceramic grains 17 and flows out through an outlet 16b provided at the lower end of the filtration tank 16. It looks like this. or,
The pipe 19 is inserted into the center of the filtration tank 16 from the top surface of the filtration tank 16 downward, and the pipe 19 inserted into the filtration tank 16 has a plurality of nozzle-shaped holes 19a formed therein. There is. Then, by switching the switching solenoid valve 18, the flow of the bathtub water to the inlet 16a is blocked, and the bathtub water passes through the pipe 19 and passes through the plurality of holes 19a formed in the pipe 19 to the filtration tank 16.
It is designed to flow in a 360 degree direction. In addition, microorganisms that grow on the surface of the ceramic grains 17 grow in positions that create resistance to the flow path, so when the bath water flows out from the hole 19a and the flow of the bath water in the filtration tank 16 changes, the microorganisms breed. The microorganisms that do so act as resistance to that flow.

Therefore, overgrown microorganisms and attached limescale are removed from the surface of the ceramic particles 17 by changing the flow path of the bath water in the filtration tank 16.

A drain 20 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 20a is provided at the lower end of the drain 20.
An electromagnetic valve 21 is provided in the drain 20 for opening and closing the discharge of hot water from the bathtub. A switch (not shown) for operating the switching solenoid valve 18 is provided on the outer surface of the purification device main body 7, and when the switch is operated, the switching solenoid valve 18 is switched and operated, and at the same time, the microorganism filter device 11 and the ultraviolet sterilizer 12.
is closed, and the exhaust pipe 20a at the lower end of the train 20 is closed.
An electromagnetic knob 21 provided at the front 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.

Furthermore, as the bathtub water is purified, water scale, etc. accumulates in the filtration tank 16, and microorganisms on the surface of the ceramic grains 17 proliferate, which impairs the 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 a switch provided on the outer surface of the purification device main body 7 is operated, the switching electromagnetic valve 18 is switched and activated, and at the same time, the microorganism filter device 11 and the ultraviolet sterilization device 12 are operated.
The electromagnetic valve 15 between the two is closed, and the electromagnetic valve 21 provided in the exhaust pipe 20a at the lower end of the drain 20 is opened.

Then, by switching the switching solenoid valve 18, the flow of bathtub hot water to the inlet 16a is cut off, and the bathtub hot water passes through the pipe 19 connected to the switching electromagnetic valve 18 and flows out from the hole 19a of the pipe 19. This changes the flow path of the bathtub water in the filtration tank 16, which causes the ceramic grains 17 to change.
Microorganisms and limescale etc. that have grown on the surface of the same ceramic grain 17
removed from the surface. And the microorganism filter device 11
Since the electromagnetic valve 15 between the and the ultraviolet sterilizer 12 is closed, the removed microorganisms, limescale, etc. are discharged from the drain 20 together with the bath water without flowing into the bathtub l through the circulation path 30. Therefore, 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.
7 can be easily and reliably washed.

[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.
As in the first embodiment, hot water is flowed out from the hole 19a of the pipe 19 inserted into the filtration tank 16.

In the third embodiment shown in FIG.
At the same time, each pipe 19 is divided into two parts and connected to the side and top surfaces of the filtration tank 16, and a nozzle-shaped hole 19a is formed at the tip of each pipe 19. The bathtub hot water flows out into the filter tank 16 from 19a.

According to the second and third embodiments, the user can simply operate the switch based on the lighting of the indicator lamp 14a of the purifier main body 7 to remove the ceramic grains 1 in the filtration tank 16.
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, it is also possible to further increase the number of pipes 19 connected to the filtration tank 16, or to change the configuration of each part arbitrarily without departing from the spirit of the invention.

〔Effect of the invention〕

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 a microbial filter device according to a second embodiment, and FIG. 4 is a sectional view showing a microbial filter device according to a third 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 microbial filter device (11) in which microorganisms are attached to the surface of a carrier such as ceramic grains (17) is provided inside the microbial filter device (11), and the flow path in the microbial filter device (11) is changed in the same circulation path (30). flow path changing means (18, 19
) is provided.