JPH04150816A - Circulation filter of bath water - Google Patents

Abstract

PURPOSE:To increase a filtrating ability, by providing a first filter tank on the way of a circulation pipe and a sterilizer on the circulation way positioned in the downstream and also providing a second filter tank in which a porous filter material is contained and arranged in the circulation pipe between the sterilizer and the first filter tank. CONSTITUTION:A first filter tank 3a is installed in the way of a circulation pipe 2 in a circulation filter and a sterilizer 4 is installed in the circulation pipe 2 positioned in the downstream of the first filter tank 3a and further, a second filter tank 3b is installed in the circulation pipe between the sterilizer 4 and the first filter tank 3a. In the second filter tank 3b, a porous material 5 is contained for microbes within the tank. And in the first filter tank 3a, impurities such as dirt, dust, etc., in the bath water are collected to remove them by the fine particles arranged in the tank. In the second filter tank 3b, the microbes, dirt or the like which have not been collected on the filter material 10 in the first filter tank 3a by a biofilm stuck to the surface of the filter material 5 are decomposed and absorbed for purification further.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bath water circulation filtration device installed in a bathtub that allows bathing 24 hours a day.

[Prior Art] Conventionally, a circulation pipe is connected to a bathtub to circulate the bath water in the bathtub, and during circulation, the bath water is filtered and purified by a filtration device installed in the circulation pipe. Various types of circulating filtration devices are available.

In these systems, a filtration tank containing a filter material and a sterilizer are installed in the middle of the circulation pipe, and bath water is filtered in the filtration tank and sterilized by the sterilizer. It is designed to be cleaned.

[Problem to be solved by the invention] However, in the conventional example described above, when bath water is filtered using a filter tank, visible impurities such as dirt and dust are captured and removed by the filter medium. However, the odor, color, and turbidity of bath water could not be sufficiently cleaned, and the cleaning was not completely satisfactory.

The present invention attempts to solve the above problems, and its purpose is to improve the filtration performance of bath water by using microorganisms to filter bath water through a filtration tank. To provide circulation filtration equipment.

[Means for Solving the Problems] In order to achieve the above object, the bath water circulation filtration device according to the present invention has a bath water 1 connected to a circulation pipe 2 connected to the bath 1.
In a bath water circulation filtration device that circulates bath water through the bath water and filters the bath water in a filtration tank 3 provided in the middle of the circulation pipe 2, a first filtration tank 3a is provided in the middle of the circulation pipe 2. Circulation pipe 2 located below the water of the first filtration tank 3a
A sterilizer 4 is provided in the sterilizer 4 and the first filter tank 3a.
A second filter tank 3b in which a porous filter material 5 in which microorganisms can live is arranged is provided in the circulation pipe 2.

[Operations] Therefore, the bath water passing through the circulation pipe 2 is filtered by passing through the first filtration tank 3a, and then purified by microorganisms by passing through the second filtration tank 3b.
After being sterilized, it is returned to the bathtub 1.

[Example] Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

The side wall of the bathtub 1 is provided with an inlet 6 and a spout lower.
A circulation pipe 2 is provided outside the bathtub 1 between the suction port 6 and the jet lower. 8 is a hair catcher provided at the suction port 6. A pump 9 is provided in the middle of the circulation pipe 2, and a first filtration tank 3 is provided between the pump 9 and the spout lower.
A is provided. A second filter tank 3b is provided in the circulation pipe 2 located below the water of the first filter tank 3a, and a sterilizer 4 is installed in the circulation pipe 2 located below the water of the second filter tank 3b. It is a provision. The first filter tank 3a is formed by providing a filter medium 10 inside the tank body and partitioning the tank body vertically into a front chamber 3' and a rear chamber 3'' by the filter medium 10.
For example, bead-like fine particles such as sand or glass beads are used, and are deposited on a mesh plate 11 installed between the front chamber 3' and the rear chamber 3''. An inlet 12 for introducing bath water into the first filter tank 3a is provided at the upper part of the first filter tank 3a, and an outlet 13 for flowing out the filtered bath water is provided at the lower part. A backwash pipe 15 is branched in the middle of the circulation pipe 2 connected to the inlet 12 of the first filtration tank 3a via a three-way valve 14, and the tip of the backwash pipe 15 is connected to the first filtration tank 3a. Outlet 13 of 3a
It is connected via a three-way valve 16 to the circulation pipe 2 led out from the pipe. Reference numeral 17 denotes a drainage pipe line provided with a switching valve 18, which is connected to the circulation pipe line 2 connected to the inlet 12.

The second filter tank 3b is formed by housing and arranging a porous filter material 5 in which microorganisms can live in the tank body, and an inlet 19 for introducing bath water into the tank body is provided in the upper part, and an inlet port 19 is provided in the lower part. An outlet 20 is provided for draining the purified bath water. The filter material 5 has a large diameter (several cm in diameter)
It is made of unglazed ceramic or natural stone with a large surface area that has many holes, and microorganisms can adhere to and live on the surface of the filter medium 5. A microbial film is formed on the surface. Outlet 1 of the first filter cypress 3a
3, a three-way valve 21 is provided to lead out a second circulation line 2a, and the tip of the second circulation line 2a is connected to the inlet 19 of the second filtration tank 3b. It is. 2
2 is a drainage pipe line provided with a switching valve 23;
A second circulation pipe 2a connected to the inlet 19 of the filter tank 3b
It is connected to. The tip of the circulation pipe 2 led out from the outlet 20 of the second filter tank 3b is connected to the sterilizer 4.

24 is a backwash pipe for backwashing.

The sterilizer 4 sterilizes bath water by irradiating the bath water with ultraviolet rays or by dissolving ozone in the bath water.

In the circulation filtration device formed as described above, when the pump 9 is operated, the bath water in the bathtub 1 flows into the circulation pipe 2 through the suction port 6, and the pump flows as shown by arrow A in the figure. 9. The water passes through the first filter tank 3a, the second filter tank 3b, and the sterilizer 4, and is jetted into the bathtub 1 from the jet lower. here,
The bath water passes through the first filter tank 3a and is filtered by the filter medium 10 in the first filter tank 3a, and then passes through the second filter tank 3b.
The first filtration volume 3a
In the second filtration area 3b, impurities such as dirt and grime in the bath water are captured and removed by fine particles stored in the tank body, and in the second filtration area 3b, the microorganism film attached to the surface of the filter medium 5 removes impurities. Bacteria, dirt, etc. that could not be captured by the filter medium 10 with 1 filtration area 3a are decomposed and absorbed and purified, and bath water is sufficiently purified in terms of odor, color, and turbidity. It will be done. In other words, the first filtration tank 3a removes 80-90% of human body grime, SS, hair, and other impurities contained in the bath water, and the remaining 10-20% of the impurities enters the second filter tank 3b, and the filter media It adheres to and is absorbed by the microbial film formed on the surface of the filter 5, and is decomposed and absorbed by the microorganisms. Impurities of 30μ or more are removed by the first filtration area 3a, and the SS (approximately 1μ) is removed. Dead bacteria) etc. will be removed by the second filtration volume 3b. Furthermore, bacteria and the like are killed by the sterilization performed by the sterilizer 4, and the bath water to be purified is purified to the same level as tap water.

In order to remove the impurities accumulated in the first filtration volume 3a at regular intervals, the three-way valve 14° 16.21 is switched to circulate bath water through the backwash pipe 16.24. Outlet of each filtration volume as shown in the mouth 13.20
Drainage pipe 17.22 so that the bath water flows backwards.
It drains more impurities. At this time, the switching valves 18.23 provided in each drainage pipe line 1722 are open.

In this way, the bath water in the bathtub 1 can be purified by filtration by the filtration product, and the bath water in the bathtub 1 can be used for a long period of time without being replaced, so that it is always in a clean state. For example, it can be used for bathing at any time over several days or weeks, and can be made into a so-called 24-hour bath that allows bathing even 24 hours a day. .

[Effects of the Invention] As described above, the bath water circulation filtration device of the present invention includes a first filtration area in the middle of the circulation pipe, and a sterilizer installed in the circulation pipe located below the first filtration space. A second filtration area is provided in which a porous filter material in which microorganisms can live is housed in the circulation pipe between the sterilizer and the first filtration area, so that bath water passing through the circulation pipe is is filtered by passing through the first filtration volume, then purified by microorganisms by passing through the second filtration volume, sterilized by the sterilizer, and then returned to the bathtub, which improves filtration performance and sterilization. This is something that can improve performance.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a schematic diagram of an embodiment of the present invention, in which 1 is a bathtub, 2 is a circulation pipe, 3 is a filtration area, 3a is a first filtration area,
3b is a second filtration volume, 4 is a sterilizer, and 5 is a filter medium. Agent: Patent Attorney Ishi 1) Chief Voluntary Author of 7th Procedural Amendment) March 29, 1991, 1990 Patent Application No. 277379 2, Name of the invention: Bath water circulation filtration device 3, Person making the amendment Relationship with the case Patent applicant address: 1048 Kadoma, Kadoma City, Osaka Prefecture Name (
583) Matsushita Electric Works Co., Ltd. Representative Toshio Miyoshi 4 Agent postal code 530 Address 5-6-16 Dojima 1-chome, Kita-ku, Osaka 5°6° Date of amendment order No number of inventions increased by voluntary amendment [1] In the specification of the present application, page 1, line 16 to line 17 of the same page, "provided in a bathtub where bathing can be done 24 hours a day" has been changed to "clean the bath water in the bathtub by filtration". We will correct it to ``can be converted into ``. [2] From “can do,” on page 8, line 13 of the same page, to “is something,” on line 16 of the same page, “can do it, and can always maintain a clean condition.” This is corrected to ``It is possible to use the bathtub 1 for a long period of time without having to replace the bath water.'' [I amend "It is possible to do." to "It is also possible to do." in the 19th line of page 8 of the same as above. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] [1] In a bath water circulation filtration device that circulates bath water in a bathtub through a circulation pipe connected to the bathtub and filters the bath water in a filtration tank provided in the middle of the circulation pipe, A sterilizer is provided in a circulation pipe located below the water of the first filtration tank, and a porous hole in which microorganisms can live is provided in the circulation pipe between the sterilizer and the first filtration tank. 1. A circulating filtration device for bath water, characterized by comprising a second filtration tank in which a quality filtration material is housed.