JPH10216426A - Filtration device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and spoutaneously discharge air that has entered a filter. SOLUTION: A breather 11 is fitted on a cover 6 of a filter 2. The breather 11 consists of a body having a communicative hole in the central part thereof, a filter fitted to an opening of the communicative hole and consisting of a porous material having the property of being permeable to gas but not being permeable to fluid such as water and oil, and a cover fitted in the upper end part of the body. Filter pebbles or the like are taken out from the filter 2 and waste matter such as scale stuck on the surface thereof is removed, and when the pebbles or the like are returned to the filter 2, air enters the filter 2. The air that has entered it is discharged to outside the filter 2 through the filter of the breather 11. Circulating water in the filter 2 is prevented from leaking to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a filtration device,
In particular, the present invention relates to a filtration device provided with a breather for bleeding air, which is effectively used in a circulation system such as a bath and a pool.

[0002]

2. Description of the Related Art In general, various types of filtration devices are used in circulation systems such as baths and pools. For example, filtration devices as shown in FIG. 4 are provided on the market.

[0003] That is, this filtration device 51 is a so-called 24
A circulating pump 56 that circulates water in a bathtub 60, a filter stone 53 that is provided in the middle of a circulating system and removes waste such as scale from the circulating water, A filter 5 having a silver antibacterial stone 54 for removing Escherichia coli and other germs contained therein and a ceramic 55 for removing ammonia and fat contained in circulating water.
2, a heater 57 for heating the circulating water from which wastes and the like have been removed by the filter 52 to a predetermined temperature and sterilizing the circulating water at the same time.
With

[0004] By circulating the water in the bathtub 60 using such a filtration device 51, the water in the bathtub 60 can be purified to the same degree as the hot water, and the water in the bathtub 60 can be replaced. Without having to clean the bathtub 60, the inside of the bathtub 60 can be filled with hot water similar to hot water that does not contain waste products such as scale and Escherichia coli and other germs. You can feel it.

[0005] In order to maintain the purifying function of the filter 52, the filter 51 is periodically stopped, the lid 58 of the filter 52 is opened, and the filter stone 53, the silver antibacterial stone 54, It is necessary to take out the ceramics 55, remove wastes such as descaling adhered to their surfaces, and then return them to the filter 52 and close the lid 58.

[0006] However, the filter stone 53
When they are taken out, returned to the filter 52 after cleaning and the lid 58 is closed, air enters the filter 52. When the apparatus is restarted in this state, air remains in the upper part of the filter 52 (in the vicinity of the inner surface of the lid 58), and a sound such as the air moving in the circulation system and the sound flowing to the lower side is generated.
Abnormal noise during operation of the device. In addition, if air partially remains in the circulation system, the circulating water does not act evenly on the filter stone, which causes deterioration of the filter stone and generation of mold.
Therefore, when the lid 58 of the filter 52 is opened and closed,
An operation of bleeding air from the filter 52 is required. Usually, this air bleeding work is a work of removing a rubber stopper or the like provided on the lid 58, putting water into the filter 52, and closing the rubber stopper or the like when the filter 52 is filled with water. And the maintenance of the apparatus is troublesome.

On the other hand, in order to eliminate the troublesome work of bleeding air as described above, there have been proposed ones provided with a three-way valve or a five-way valve in the middle of a circulation system. However, in such a configuration, since an expensive three-way valve or five-way valve is used, the price of the entire apparatus increases, the circulation system becomes complicated, and maintenance is troublesome. That would be.

The present invention solves the above-mentioned problems of the prior art, and removes filter stones and the like from a filter in order to remove wastes such as scales attached to the surface of the filter stones. Even if air enters the filter by cleaning them and returning them to the filter after cleaning,
It is an object of the present invention to provide an inexpensive and easy-to-maintain filtration device that can automatically discharge air that has entered into the outside of a filter.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a circulating pump for circulating water in a water tank, a waste pump provided in the middle of a circulating system, and waste contained in circulating water. In a filtration device comprising a filter having a filter stone or the like for removing a filter, the filter is provided with a breather having a filter made of a porous material having a property of allowing gas to permeate but not allowing liquid such as water or oil to permeate. That is, the above-mentioned means are adopted. Further, the breather has a body having a communication hole communicating at least inside and outside the filter, and a filter for closing an opening of the communication hole, and the filter allows gas to pass therethrough, such as water and oil. The liquid employs a means made of a porous material having a property of not allowing the liquid to permeate to a predetermined pressure.

[0010]

According to the present invention, by adopting the above-mentioned means, the filter stone is taken out from the filter, waste matter such as descaling adhered to the surface is removed, and then the filter stone is returned to the filter. Then, some air enters the filter. This air is discharged to the outside of the filter through a filter made of a porous material having a property of transmitting gas of a breather provided in the filter but not transmitting liquids such as water and oil. .

[0011]

Embodiments of the present invention shown in the drawings will be described below. 1 and 2 show an embodiment of a filtration device according to the present invention. FIG. 1 is a system diagram showing the whole, and FIG. 2 is a sectional explanatory view of a breather shown in FIG.

That is, the filter device 1 according to the present embodiment is used for a so-called 24-hour bath, circulates water filled in a bathtub 45 as a water tank, and circulates water in the middle of a circulation system. The circulating pump 3 is provided outside the bathtub 45 to remove wastes such as scales contained in the water and keep the circulating water at a predetermined temperature.
1, a filter 2, a heater 25, a water flow sensor 35,
It has a temperature sensor 34, a suction unit 36 installed in a bathtub 45, and a blowing unit 30.

The filter 2 has a container 3 having an open top, a lid 6 for closing the opening of the container 3, and a small waste of 5 μm or less contained in the circulating water, which is mounted in the container 3. It comprises a filter stone 8, a silver antibacterial stone 9 for removing bacteria such as Escherichia coli contained in the circulating water, and a ceramic 10 for removing ammonia and fat contained in the circulating water.

An inlet 4 is provided on the upper side surface of the container 3, and circulating water flows into the container 3 through the inlet 4. An outlet 5 is provided at the bottom of the container 3, and circulating water from which wastes and the like have been removed flows out of the container 3 via the outlet 5.

A part of the lid 6 is provided with a mounting hole 7 penetrating vertically therethrough, and a breather 11 is mounted in the mounting hole 7. Breather 11
A body 12 made of a rubber-like elastic body having a communication hole 14 penetrating in the center in the vertical direction, a filter 24 attached to an upper end opening of the communication hole 14 to close the opening, and a body 1
2 and a metal cover 19 fitted to the upper end.

The filter 24 is provided with an oil-repellent and water-repellent treatment on the surface of a continuous porous PTFE body (pore diameter of about 0.1 to 1 μm), and allows gas to permeate but liquids such as water and oil to a predetermined pressure. 0.8%
It has a water pressure resistance of about 3 kgf / cm ² . Then, depending on the properties of the filter 24, the filter 2
It is possible to prevent the air that has entered inside from being discharged to the outside and to prevent the circulating water in the filter 2 from leaking to the outside.

The body 12 has a cylindrical main body 13 fitted in the mounting hole 7 of the lid 6 having a communication hole 14 vertically penetrating at the center, and is integrated with the upper end of the main body 13. And an annular flange portion 17 that forms a predetermined gap between the main body portion 13 and the upper surface of the lid 6 when the main body portion 13 is mounted in the mounting hole 7 of the lid 6, At a plurality of positions of the flange portion 17, ventilation holes 18 communicating between upper and lower surfaces are provided.

A step 16 having a predetermined depth is provided at the upper end opening of the communication hole 14 over the entire circumference. A peripheral portion of the filter 24 is mounted in the step 16 and a filter 2 is provided.
A packing 22 made of an annular rubber-like elastic body and an annular metal washer 23 are located at the upper part of the peripheral portion of 4. The packing 22 may be formed by molding a foamed rubber-like elastic body on both sides of a metal plate.

The cover 19 has a cylindrical shape with its upper end closed, and the flange 17 of the body 12 is located on the inner peripheral side. In this state, the lower end is bent inward to form the flange 17. By being crimped on the lower surface of the body 12, it is attached to the upper end of the body 12. And like this, cover 1
9, a space 20 is formed between the upper surface of the flange 17 and the inner surface of the cover 19, and the ventilation hole 18 of the flange 17 and the communication hole 14 of the main body 13 communicate with each other in the space 20. Is what you do.

The step 16 of the body 12 on the upper surface of the cover 19
Projections 21 projecting downward at a plurality of locations corresponding to
Are provided integrally, and the protrusion 21 and the step 1 of the body 12 are provided.
The periphery of the filter 24 is sandwiched between the bottom surface of the filter 6 and the bottom surface of the filter 6 via the packing 22 and the washer 23 described above.

As shown in FIG. 3, a cylindrical outlet 19a for opening the space 20 is provided at the center of the upper surface of the cover 19 of the breather 11, and this outlet 19a is provided.
The pipe 40 may be laid between the inside of the bathtub 45 and the inside of the bathtub 45.

With this configuration, even if the filter 24 is broken for some reason, the circulating water flowing through the breather 11 does not leak out, and the circulating water inside the breather 11 does not leak. Is surely returned from the outlet 19a into the bathtub 45 via the pipe 40.

The heater 25 includes a container 26 having an inlet 27 and an outlet 28, and a heater 29 provided in the container 26.
The circulating water flowing into the container 26 from the inlet 27 is heated by the heater 29 to keep the temperature at a predetermined temperature, and is sterilized to remove various bacteria such as Escherichia coli. 28.

The inlet 27 of the heater 25 is connected to the outlet 5 of the vessel 3 of the filter 2 through a pipe 40,
The outlet 5 of the container 3 is connected to the blowing unit 30 through a pipe 40.
Is to be connected to.

A temperature sensor 34 for monitoring the temperature of the circulating water and a water amount of the circulating water are provided in the middle of a pipe 40 connecting the discharge port 33 of the circulating pump 31 and the inlet 4 of the vessel 3 of the filter 2. Is provided. By controlling the circulating pump 31 and the heater 25 based on signals from these sensors 34 and 35, the temperature and amount of circulating water can be set to predetermined values.

A pipe 40 is connected to the suction port 32 of the circulation pump 31.
The suction unit 36 is connected via the. The suction unit 36 is provided in a container 37 with a filter stone 38 for removing waste such as descaling of 5 μm or more and a catch net 39 made of a synthetic resin or metal mesh for removing large dust such as hair. And is provided to assist the purifying action of the filter 2.

The circulating pump 31, the filter 2, the temperature sensor 34, the water flow sensor 35, and the heater 25 configured as described above are placed at predetermined positions in a metal or synthetic resin case (not shown). And a pipe 40 connects between the discharge port 33 of the circulation pump 31 and the inflow port 4 of the filter 2,
A temperature sensor 34 and a water flow sensor 35
Are connected in series, the outlet 5 of the filter 2 and the inlet 27 of the heater 25 are connected by a pipe 40, and the case is installed on an apron or the like outside the bathtub 45.

The pipe 4 is connected to the outlet 28 of the heater 25.
0, and the suction unit 36 is connected to the suction port 32 of the circulating pump 31 via a pipe 40, and the blowing unit 30 and the suction unit 3 are connected.
6 is located in the bathtub 45, and thus the filtration device 1 according to this embodiment is configured.

When the tub 45 is filled with water and the operation of the filtration device 1 is started and the circulating pump 31 is operated, the water in the tub 45 (hereinafter referred to as circulating water) is filled with the suction unit 3.
6, the liquid is sucked into the pipe 40, flows through the pipe 40, and flows into the filter 2 via the water flow sensor 35 and the temperature sensor 34 in the middle of the pipe 40. In this case, large waste such as hair and large waste such as large scale of 5 μm or more contained in the circulating water are removed by the catch net 39 of the suction unit 36 and the filter stone 38.

The circulating water flowing into the filter 2 has ammonia and fat removed by the ceramic 10 in the filter 2, and various bacteria such as Escherichia coli are removed by the silver antibacterial stone 9. Waste matter such as small scale water of submicron size is removed, flows out of the filter 2 into the pipe 40, flows through the pipe 40, and flows into the heater 25.

The circulating water flowing into the heater 25 is
Heated by the heater 29 of the heater 25 to keep the temperature at a predetermined temperature, and sterilized to remove various bacteria such as Escherichia coli.
The air flows into the blowout unit 30 after flowing through the inside of the blower 0, and is blown out from the blowout unit 30 into the bathtub 45.

By circulating the water in the bathtub 45 several times a day through the circulation system as described above, the bathtub 45 can be filled with the same amount of water as the hot water.
You can enjoy the feeling of hot spring anytime 24 hours a year.

In order to maintain the purifying function of the filtering device 1 having the above-described structure, the ceramic 10, silver antibacterial stone 9, and filter stone 8 are taken out of the container 3 of the filter 2 and adhered to their surfaces. It is necessary to remove wastes such as debris and then return them to the container 3 for maintenance.

When such maintenance is performed, some air enters the container 3, and this air is removed from the filter 2 by the breather 11 attached to the lid 6 of the filter 2. Will be discharged.

That is, the air that has entered the filter 2 acts on the lower surface side of the filter 24 through the communication hole 14 of the breather 11, and passes through the filter 24 to be filtered.
And reaches the space 20 on the upper surface side of the filter 2, and is discharged out of the filter 2 through the ventilation hole 18 communicating with the space 20.
In this case, the filter 24 has a property of allowing gas to pass therethrough but not allowing liquid such as water or oil to pass through to a predetermined pressure, so that the circulating water in the filter 2 is discharged to the outside of the filter 2. Nothing happens, and only the air is reliably discharged out of the filter 2.

Therefore, the filter 2 can be used without any modification.
Since the air that has entered the inside can be naturally discharged, the troublesome work of removing the air is not required, and the entering air causes abnormal noise and the filter stone 8 in the filter 2 is deteriorated. No mold or mold is formed. In addition, it is not necessary to use an expensive three-way valve, five-way valve, or the like, and it is sufficient to use an inexpensive and simple structure of the breather 11, so that the overall manufacturing unit price can be reduced and maintenance is easy. Becomes

When the apparatus is used for a long time, circulating water permeates into the porous portion of the filter 24 and the air permeability decreases, but the air entering the container 3 is warmed by the circulating water. At the same time, the filter 24 is warmed and dried by the warmed air, so that the water entering the porous portion of the filter 24 is naturally removed, and the air permeability is self-restored. Further, since the filter 24 is water-repellent, it is difficult for waste products such as scale to adhere to the surface and hardly causes clogging, so that stable performance can be exhibited for a long period of time. In addition, waste products such as scales that are likely to adhere to the surface are also removed by the flow of circulating water, so that long-term stable performance can be obtained.

In the above description, the case where the filtering device is used for a 24-hour bath has been described. However, the present invention is not limited to this, and the filtering device may be used for a pool. It may be used in the circulation system.

[0039]

According to the present invention, as described above, filter stones and the like are taken out of the filter to remove wastes such as scales adhered to the surface, and thereafter the filter stones are returned to the filter. Therefore, even if air enters the filter, the air is discharged out of the filter by the filter of the breather provided in the filter. In other words, the breather has a filter that has the property of transmitting gas but not water, oil or other liquids, so that circulating water in the filter does not leak to the outside and only air is naturally discharged to the outside. It can be discharged. This eliminates the need for an air bleeding operation and eliminates the use of expensive parts such as a three-way valve and a five-way valve, and allows the inflow of air to be easily evacuated by using a simple and inexpensive breather. Therefore, it is possible to provide an inexpensive device which is easy to maintain and can provide an excellent effect.

[Brief description of the drawings]

FIG. 1 is a system diagram showing an embodiment of a filtration device according to the present invention, which is a system diagram in a case where the device is used for a 24-hour bath.

FIG. 2 is an explanatory sectional view of a breather shown in FIG. 1;

FIG. 3 is an explanatory sectional view showing another example of a breather.

FIG. 4 is a system diagram showing an example of a conventional filtration device;
It is a system diagram in the case of using for a 24-hour bath.

[Explanation of symbols]

 1, 51 Filtration device 2, 52 Filtration device 3, 26, 37 Container 4, 27 Inlet 5, 19a, 28 Outlet 6, 58 Lid 7, Mounting Hole 8, 38, 53 Filter stone 9, 54 Silver antibacterial stone 10, 55 Ceramic 11 Breather 12 Body 13 Main body 14 Communication hole 16 Step 17 Flange 18 Vent hole 19 Cover 20 Space 21 Projection 22 Packing 23 Washer 24 Filter 25, 57 Heater 29 Heater 30 Blow-out unit 31, 56 … Circulation pump 32… Suction port 33… Discharge port 34… Temperature sensor 35… Water flow sensor 36… Suction unit 39… Catch net 40… Piping 45, 60…

Claims (2)

[Claims] A circulation pump for circulating water in a water tank;
A filter provided with a filter provided with a filter stone or the like for removing waste contained in the circulating water, provided in the middle of the circulation system. Is a filtration device provided with a breather having a filter made of a porous material having a property of impermeability. 2. The breather has a body having a communication hole communicating at least inside and outside the filter, and a filter closing an opening of the communication hole. The filter allows gas to pass therethrough but water, 2. The filtration device according to claim 1, wherein the filtration device is made of a porous material having a property that a liquid such as oil does not permeate to a predetermined pressure.