JP2607830B2 - Filtration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an suitable filtration device for filtering bath water or the like, have excellent filtration capacity, only <br/> also washable granular filter medium of fine stone or ceramic It has a cleaning function.

[0002]

2. Description of the Related Art Conventionally, in a sand filtration method using sand having a particle size of 1 to 2 mm as a filter material, a sand filtration layer having a thickness of 20 to 70 cm is provided, and contaminated water passes through the same layer. During this time, dirt and suspended matter is captured and filtered.
Then, after a certain period of time, the water is made to flow backward, and the contaminants trapped in the layer are drained to the drainage channel for backwashing.

[0003] In addition, natural stones having a slightly larger particle size, porous ceramic particles sintered at a low temperature, and the like are used as a filter medium to generate a microbial coating on the surface and adsorb not only contaminants but also bacteria to filter. There is also a method of performing. In this method, polluted water containing organic substances and microorganisms such as bath water can be purified without using a sterilizing agent or the like, and is therefore used in a home bath filter. Since the method is not a method of physically capturing contaminants between sand particles as in the above-mentioned sand filtration method, the contaminants can be adsorbed and retained on the microorganism coating for a considerably long period of time. Therefore, it is not necessary to wash the filter medium as frequently as in the case of sand filtration. However, even after a certain period of time, the contaminants become saturated. The easiest way is to take out the filter media and wash your hands.

As described above, in the case of the sand filtration method, a backflow switching valve and complicated piping are required in order to backflow water and float and agitate the sand by the force of the water. To do so, a certain level of backflow and water pressure is required. On the other hand, in the case of the filtration method using a microbial coating, the stone is vibrated or stirred with a stirring member to remove the contaminants attached to the stone, but the entire filter medium is moved without any inconvenience It is difficult to do so, and there is a problem that contaminants remain on some stones that could not be moved. (See JP-A-3-67955)

[0005] Regarding the filtration capacity The effective filtration thickness of the granular filter medium is several cm to several tens cm. In order to make the polluted water contact the filter medium as long as possible, a tank containing the filter medium is set up, The filter medium layer thickness in the inside is set to a value that is much larger than the effective filtration thickness,
It is made to flow vertically from the upper side or the lower side. In this regard, a filter medium portion exceeding the effective filtration thickness in the filter medium layer hardly functions as a filter medium, and thus has a problem of low filtration capacity. On the other hand, even if the tank is turned sideways and the polluted water is caused to flow in the longitudinal direction in the tank to fill the tank with the filter medium, only a part of the filter medium works. Furthermore, if the filter medium is full in the tank, the tank cannot be cleaned because the filter medium does not move even if the tank is rotated to clean the filter medium. Also, if the filter medium is filled leaving a space so that it moves when the tank rotates, the contaminated water flowing in the tank in the longitudinal direction does not pass through the filter medium, but flows over the filter medium and passes therethrough. , Substantially no filtration capacity can be obtained.

[0006]

Problems to be Solved [0006], as rub against each other to move all the filter medium ten thousand flights without
To enhance the cleaning function and
Elimination of contaminants that can be efficiently eliminated with a small amount of water, and all filter media
To work effectively as filter media and filter to the amount of filter media
It is an object of the present invention to provide a filtration device having an increased capacity .

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a cylindrical rotary body having both left and right ends closed and a horizontal axis of rotation is provided with an inflow port at one end on the axis. At the other end, an outlet portion is formed, and the inside of the body is divided into three parts by upper and lower porous partition plates to form a watering space and a water collecting space.
The water sprinkling space is divided into a space and a filtration space.
Communicates with the inflow port, and the catchment space section is connected to the outflow port
The filtration space is connected to the sprinkling space and the water collection space.
Between the two spaces and the water holes of the partition plate.
Inside the space as the rotating body rotates.
It is characterized in that it contains a rollable amount of granular filter media .

In the present invention, the water sprinkling space and the water collecting space may be in any order. However, in the case where the granular filter medium is rough, for example, natural stone, the water sprinkling space is lower and the water collecting space is lower. The space is located on the upper side, and the contaminated water should flow from bottom to top and be filtered. It is also possible to select natural stone, ceramic, or the like as the particulate filter medium and sterilize it with a microbial coating generated on the surface.

[0009]

In the cylindrical rotary body having a horizontal axis of rotation, an inflow port is formed at one end on the axis and an outflow port is formed at the other end of the axis, and the inside of the body is formed by upper and lower porous partition plates. Divided into water sprinkling space , water collecting space, and filtering space
And the sprinkling space communicates with the inflow port,
The water collection space communicates with the outlet, and the filtration space is
Between the sprinkling space and the catchment space,
And through the water hole of the partition plate,
The amount of granular filter media that can roll in the space as the
Since the rotating body rotates, all the filter media in the filtering space roll in the filtering space and rub against each other, so that the deposits can be scraped off each other. Then, the scraped-off contaminants in the filter medium can be efficiently removed from the filtration space with a small amount of water, and the removal of the contaminants can be performed in the same manner as in the conventional filtration without backflowing water. Since the flow can be performed by the water in the flow direction, the reverse flow does not require a switching valve and complicated piping.

The rotating body having a horizontal axis of rotation is divided into three parts by upper and lower porous partition plates to form a filtration space between the upper and lower sprinkling space and the collecting space. The filter medium is stored in the filtration space with the largest cross-sectional area,
Since water flows vertically from the sprinkling space through the filtration space to the water collection space, the filter media can be adjusted to an effective filtration thickness, and effective filtration can be performed with all filter media. It has excellent filtration ability and is excellent.

[0011]

1 to 3 show a first embodiment of a filtration device according to the present invention, in which a filtration system 2 is built in a box-shaped exterior body 1 and suction of the filtration system 2 is carried out. The mouth 2a and the spout 2b are projected from the side of the exterior body 1 so that they can be connected to the bathtub side. The filtration system 2 is provided with a pump 3, a rotating shaft 6, a rotating body 9, a sterilizing element 20, a water flow sensor 21, and a heating element 22 between the suction port 2a and the water discharge port 2b.

The rotating shaft 6 is of a pipe shape and includes left and right bearings.
It is rotatably supported at 17, 18 and is rotatable under the driving force of the motor 19. An inlet 6a at the left end of the rotary shaft 6 is connected to the connection 4 at the pump 3 side, and an outlet 6b at the right end.
Are rotatably and connected to the connection port 5 on the sterilization element 20 side. A rotating member 9 is provided concentrically on a shaft portion between the left and right bearings 17 and 18 so as to be integrally rotatable, and a part of the rotating shaft 6 in the rotating member 9 is closed and divided. The inflow port 6a is connected to the sprinkling space 13 of the rotating body 9 through a pipe 7 branched from a shaft portion on the inflow port 6a side, and is connected to the outflow port 6b. The water outlet space 6b of the rotating body 9 and the water outlet space 6b, which will be described later, are connected to each other through a pipe portion 8 branched from the shaft portion of the rotor.

The rotation stop angle of the rotation shaft 6 is provided with a sensor capable of detecting the rotation angle of the rotation shaft 6 or a switch (not shown) capable of capturing the rotation angle.
13 and the water collecting space 16 are stopped in a predetermined vertical relationship.

The rotator 9 is a horizontally long cylindrical member whose left and right ends are closed. Porous partitioning portions 10 and 11 are arranged vertically in the body and divided into three parts vertically. The upper watering space 13, the lower water collecting space 16, and the upper and lower partitioning plates 1, which are located between the watering space 13 and the water collecting space 16.
A filtration space 14 is formed which communicates with both spaces 13 and 16 through water holes 12 of 0 and 11. The filtering space 14 contains an amount of granular filter media 15 that can roll in the space as the rotating body 9 rotates.

Next, the use state of the above-described apparatus will be described. During filtration, bathtub water containing contaminants sucked into the suction port 2a from the bathtub 26 side by the suction force of the pump 3 passes through the inlet port 6a of the rotating shaft 6 and the pipe section 7 from the connection port 4. After flowing into the upper sprinkling space 13, it flows into the lower filtering space 14 through the water holes 12 of the partition plate 10, and contaminants are removed in the process of passing between the particulate filter media 15. Filtered. After that, the bath water from which the contaminants have been removed is passed through the filtration space.
From inside 14, the water flows into the lower water collecting space 16 through the water holes 12 of the partition plate 11, and then returns from the pipe portion 8 to the inside of the rotary shaft 6 again, through the outlet port 6b and the connection port 5 through the connection port 5. It flows to the sterilization element 20. Then, after the bacteria are sterilized by the sterilizing element 20 and heated by the heating element 22, the bacteria are returned to the bathtub 26 from the water outlet 2b. During this time, the motor 19 is stopped.

At the time of washing, the operation of the pump 3 is continued, the motor 19 is operated, and the bathtub is connected to the water outlet 2b.
The valve 25 on the way to 26 is switched to the drain state. Rotating body 9
Rotates under the driving force of the motor 19, and
All of the particulate filter media 15 in the inside roll in the same space and rub against each other to scrape off the attached contaminants. The scraped-off contaminants are conveyed to the bath water flowing from the water sprinkling space 13 to the water collecting space 16 via the filtering space 14, and are drained from the valve 25.

Thus, the filtering space in the rotating body 9
The area of 14 can be secured equivalent to the widest cross-sectional area of the rotating body, the filter medium is adjusted to the effective filtration thickness, and all the filter mediums can be effectively filtered, and the filtering ability is high and excellent.

As the rotating body 9 rotates by the operation of the motor 19, all the particulate filter media in the filtration space 14 are formed.
Since the rollers 15 roll in the space and rub against each other, the adhered contaminants can be scraped off from each other. Then, the scraped-off contaminants are removed from the watering space 13 to the filtering space 14.
The water can be carried by the bathtub water flowing to the water collecting space section 16 through the water, and drained from the valve 25. Therefore, there is no need for a switching valve for backwashing and complicated piping as in the conventional apparatus.

In addition to removing pollutants from bath water,
Furthermore, it can be returned to the bathtub in a sterilized and heated state.

[0020]

A. Effects of the Invention According to claim 1, the inflow port is provided at one end on the axis of the cylindrical rotating body whose rotation axis is the horizontal axis,
An outlet is formed at the other end, and the inside of the body is divided into three parts by upper and lower porous partition plates, and the sprinkling space and the water collecting space
The water sprinkling space is divided into a space and a filtration space.
Communicates with the inflow port, and the catchment space section is connected to the outflow port
The filtration space is connected to the sprinkling space and the water collection space.
Between the two spaces and the water holes of the partition plate.
Inside the space as the rotating body rotates.
As the rotating body rotates, all the filter media in the filtration space rolls in the same space and rubs against each other as the rotating body rotates, so that the adhered substances are mutually separated. Can be scraped off. And the scraped-off contaminants in the filter medium can be efficiently removed from the filtration space with a small amount of water, and the removal of the contaminants is
Since it can be performed by using water in the same flow direction as at the time of filtration without backflow of water as in the related art, a backflow does not require a switching valve or complicated piping.

B. According to the same paragraph, the rotating body whose rotation axis is the horizontal axis is divided into three by the upper and lower porous partition plates, and a filtration space is formed between the upper and lower watering space and the water collecting space. The filter medium is housed in the filtration space with the largest area, and water flows vertically from the sprinkling space through the filtration space to the water collection space. It is well prepared and can be effectively filtered with all filter media, and has a high filtering ability and is excellent.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating one embodiment of a filtration device of the present invention.

FIG. 2 is an enlarged vertical sectional view taken along the line II of FIG.

FIG. 3 is a perspective view showing a state where a rotating body is rotated.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Outer body 2 Filtration system 2a Suction port of a filtration system 2b Suction port of a filtration system 3 Pump 4,5 Connection port 6 Rotating shaft 6a Inlet of a rotating shaft 6b Outlet of a rotating shaft 7,8 rotation Shaft tube 9 Rotating body 10, 11 Partition plate of rotating body 12 Water hole of partition plate 13 Sprinkling space of rotating body 14 Filtering space of rotating body 15 Filter medium 16 Water collecting space of rotating body 17, 18 Bearing 19 Motor 20 Sterilizing element 21 Water flow sensor 22 Heating element 25 Valve 26 Bathtub

Claims (1)

(57) [Claims] 1. A tubular rotary body having both left and right ends closed and a horizontal axis of rotation is formed with an inlet at one end and an outlet at the other end on the axis. Along with
The body is divided into three parts by the upper and lower porous partition plates and
The water collecting space and the filtering space are divided and formed.
The space communicates with the inlet, and the catchment space is
It communicates with the outlet, and the filtration space collects water with the sprinkling space.
Between the space and the partition,
The space that communicates with the hole through rotation of the rotating body
A filtering device characterized by containing an amount of granular filter material that can roll inside the part .