JPH04104892A - Water purifying device - Google Patents

Abstract

PURPOSE:To easily and surely clean a microorganism filter device by providing the microorganism filter device consisting of a filter tank and a microorganism culture member housed removably in this filter tank in a circulating route. CONSTITUTION:Water scum, etc., accumulate in the filter tank 15 and the microorganisms on the surface of carriers 16 consisting of sponge propagate on purifying of bath tub hot water and, therefore, the flow of the bath tub hot water in the filter tank 15 degrades. A flow rate sensor provided in the flow passage for the bath tub hot water, then, detects the decrease in the flow rate and lights an indicator lamp 14a on the outside surface of a water purifying device body 7 in accordance with the detection thereof. A cap body 18 of the filter tank 15 is removed and the contaminated microorganism culture member S is taken out of the inside of the filter tank 15 after the pump 9 of the cleaning device body 7 is stopped. The fresh microorganism culture member S is again housed into the filter tank 15 and the cap body 18 is screwed to this filter tank 15. The pump 9 is driven again.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a purifying 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 is 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.

[Problem to be solved by the invention]

However, in the above-mentioned conventional cleaning method, when the ceramic grains are removed from the filtration tank and washed directly by hand, there is a problem that it is cumbersome to take out the ceramic grains from the filtration tank and wash them by hand one by one. In addition, backflow cleaning cannot sufficiently remove dirt from ceramic grains and is extremely ineffective, and requires special equipment to be installed in the purification equipment for backflow cleaning, which increases production costs. There are also problems.

The present invention has been made to solve the above problems, and its purpose is to eliminate the need for hand washing each time, and to easily and reliably install a microbial filter device without installing a special device for cleaning. An object of the present invention is to provide a purification device that can be cleaned.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a circulation path outside the bathtub for circulating hot water in the bathtub, a microbial filter device in the circulation path, and a microbial filter device connected to the filtration tank. The microorganism culture member is removably housed in a filtration tank, and the microorganism culture member is comprised of a large number of open-cell porous carriers and a water-permeable housing member that accommodates the carriers.

[Effect]

Therefore, in the present invention, by removing the microorganism culture member from the filtration tank of the microorganism filter device and replacing it with a new microorganism culture member, hand washing and backwashing are no longer necessary.

〔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 1. 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 are a pump 9 for circulating hot water, a physical filter device IO for physically filtering scales 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 hot water to a desired temperature are connected and arranged in series, and the bathtub water introduced from the suction pipe 5 or each device in the purifier main body 7 is connected in series. The liquid flows out through 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.

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

As shown in FIG. 2, in the microorganism filter device 11, a microorganism culture member S is housed in a filtration tank 15, and the microorganism culture member S is a porous carrier 1 made of sponge or the like.
6 and a net-like cartridge 17 that accommodates the carrier 16. Microorganisms are attached to the carrier 16 for purifying the bath water by adsorbing and decomposing organic matter in the bathtub swirl, and the microorganisms multiply on the surface of the carrier 16 as the bath water is purified. Further, a lid 18 is screwed onto the upper opening of the filtration tank 15, and by removing the lid 18 as shown in FIG. 3, the microorganism culture member S can be taken out or stored in the filtration tank 15. It is now possible to do so. Further, an inlet 15a for bathtub water is provided at the upper end of the filtration tank 15, and the inlet 15a
The bathtub water flowing from the filter tank 15 passes through the gap between the carriers 16 and flows out from the outlet 15b provided at the lower end of the filter tank 15.

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 bathtub water is introduced into the purifier body 7 through the suction pipe 5 with hair etc. removed by the hair catcher 8. 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.

Then, the clean bath water is heated to a desired temperature by the heater 13, passes through the discharge pipe 6, and is discharged into the bathtub 1 again 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 15 and microorganisms on the surface of the carrier 16 proliferate, so that the flow of the bathtub water in the filtration tank 15 becomes poor. 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, after stopping the pump 9 of the purifier main body 7, the lid 18 of the filtration tank 15 is removed as shown in FIG. 3, and the dirty microorganism culture member S is taken out from the filtration tank 15. Then, after placing the new microorganism culture member S into the filtration tank 15 again, the lid 18 is screwed onto the filtration tank 15, and the pump 9 is driven again.

Therefore, the user can easily and reliably clean the microorganism filter device 11 by simply replacing the dirty microorganism culture member S based on the lighting of the indicator lamp 14a of the purifier main body 7. In addition, since the sponge used as the carrier 16 is inexpensive, there is no risk of high costs even if the dirty microbial culture member S taken out from the filtration tank 15 is discarded as is, and there is no need to wash the carrier 16 each time, so cleaning There is no need to provide a special device for cleaning the device.

Note that this invention is not limited to the above embodiments,
For example, the carrier 16 may be made of fiber instead of a sponge, and the structure of each part may be changed as desired without departing from the spirit of the invention.

〔Effect of the invention〕

As described in detail above, the present invention exhibits an excellent effect in that a microbial filter device can be easily and reliably cleaned without providing a special device for cleaning.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing a purification device of the present invention, FIG. 2 is a sectional view showing a microbial filter device, and FIG. 3 is an exploded sectional view thereof. Bathtub 1, microbial filter device 11, filtration tank 15, carrier 16, cartridge (accommodating member) 17, circulation path 30
, microorganism culture member S0

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) is provided inside, and the microbial filter device (11) is composed of a filtration tank (15) and a microbial culture member (S) removably housed in the filtration tank (15), The microorganism culture member (S)
is a large number of open-cell porous carriers (16) and their carriers (1
6) A water-permeable housing member (17) that accommodates the water-permeable housing member (17).