JPH09314132A - Hot water circulating cleaning method and cartridge filter used in the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use hot water easily by removing impurities in it appropriately and/or cleaning it. SOLUTION: Sucked hot water is passed from the inside of the inner tube 10 of a cartridge filter A throughout a ring-shaped space 13 to capture impurities in the water by a capture material 14 and to clarify it. Next, the water is passed from the outside of an outer tube 11 through a ring-shaped channel between a filter housing and the filter A, sucked by a circulating pump, and filtered again by a filtration tank installed in the main body of the pump. The filtered water is discharged into hot water to be circulated for use. An area contacting the water of capture material 14 makes a rig-shaped space 13 formed between the inner tube 10 and the outer tube 11 so that a large area can be secured.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hot water circulation purification method and a cartridge filter used therein.

[0002]

2. Description of the Related Art Conventionally, various types of hot water circulation purifying devices for bathtubs have been developed which keep hot water in a bathtub at a constant temperature and keep the hot water clear by passing it through a filter and a filter material. There is.

[0003]

In the prior art, when the filter is clogged due to long-term use, the load of the circulation pump increases, the amount of circulating water decreases sharply, and the purification capacity tends to decrease. is there. Further, when the filter medium is clogged due to long-term use, the original function of washing with warm water is deteriorated.

Further, since the filter uses a flat rectangular sponge, the passing area of the hot water is small and the ability to capture impurities such as scales in the hot water is small, so that the surface of the clogged filter becomes slimy. , It was unsanitary when replacing and handling.

An object of the present invention is to provide on the market a hot water circulation purification method and a cartridge filter used for the same, in which impurities in the hot water are appropriately removed and / or the hot water is cleaned to improve its usability.

Another object of the present invention is to increase the contact area between the hot water and the trapping agent of the cartridge filter to prevent impurities in the hot water such as hair from being sucked into the circulation pump and causing trouble. is there. A further object of the present invention is to allow the cartridge filter to be replaced hygienically and easily.

[0007]

In order to achieve the above object, a specified invention is a circulation pump in which hot water in a bathtub is passed through an annular water passage between a cartridge filter and a filter housing, which is composed of at least inner and outer double pipes of a hot water suction portion. Aspirate with
When the hot water is sucked back into the bath after filtering and cleaning, the hot water is drawn from the bottom of the cartridge filter to the pump side through the annular water passage from the outer circumference of the outer tube through the trapping agent from the inner tube. The method for purifying circulation of hot water is characterized in that impurities in hot water are captured by the scavenger while passing through the scavenger.

In order to achieve the above object, a related invention is a cartridge filter for a hot water circulation purifying apparatus for a bath, which is characterized by carrying out the method of claim 1.

In order to achieve the above object, the cartridge filter of the hot water suction part of the hot water circulation purifying device for a bath is composed of at least an inner and outer double pipe, and the lower end of this cartridge is a reverse cup-shaped first having a hot water suction port. It is closed with a cap and its upper end is sealed with a second cap, and the inner and outer pipes are net-like tubular bodies through which hot water can pass, and the hot water sucked from the hot water suction port is at the center of the inner pipe. A flow path for discharging outward from the peripheral wall of the outer pipe is formed, and an annular space whose upper and lower ends are closed by the cap is formed between the inner pipe and the outer pipe, and in the annular space. It is preferable for washing the hot water that it is characterized by being loaded with a scavenger for trapping impurities in the hot water.

In order to achieve the above object, the scavenger in the cartridge filter is at least one of activated carbon, activated carbon containing silver ions, activated stone, ceramics, zeolite, activated natural stone, and synthetic resin porous body. It is preferable that it is characterized from the viewpoint of filtering hot water.

In order to achieve the above object, in the cartridge filter, a mesh mesh is provided all around the outer peripheral surface of the inner tube, and a fine mesh mesh is provided all around the inner peripheral surface of the outer tube. It is preferable in terms of hot water filtration.

In order to achieve the above object, the mesh net in the cartridge filter has a mesh to the extent that the trapping agent does not flow out to the inner pipe side, and the mesh net is finer than the mesh net. It is preferable that the trapping agent has a mesh that does not flow out to the outer tube side.

In order to achieve the above object, the cartridge filter comprises at least an inner and outer double tube, the upper end of which is closed by a first cap and the lower end of which is
A second cap having an opening in the center is attached,
An annular gap whose upper and lower sides are closed is formed between the outer pipe and the inner pipe, and the inner and outer pipes are hot water permeable mesh cylinders, and the entire outer peripheral surface of the inner pipe of the cartridge filter is formed. The inner mesh of the outer pipe is stretched around, the fine mesh is stretched all around the inner surface of the outer pipe, and the copper wire is wound around the inner mesh stretched on the outer peripheral surface of the inner pipe. It is characterized by being.

In order to achieve the above object, the cartridge filter comprises at least an inner and outer double tube, the upper end of which is closed by a first cap, and the lower end of which is
A second cap having an opening in the center is attached,
An annular gap whose upper and lower sides are closed is formed between the outer pipe and the inner pipe, and the inner and outer pipes are hot water permeable mesh cylinders, and the entire outer peripheral surface of the inner pipe of the cartridge filter is formed. And a fine mesh is stretched all around the inner peripheral surface of the outer tube, and at least one of copper powder particles and rods is filled in the annular gap. It is characterized by that.

In order to achieve the above object, the cartridge filter is composed of at least inner and outer double tubes, the upper end of which is closed by a first cap, and the lower end of which is
A second cap having an opening in the center is attached,
An annular gap whose upper and lower sides are closed is formed between the outer pipe and the inner pipe, and the inner and outer pipes are hot water permeable mesh cylinders, and the entire outer peripheral surface of the inner pipe of the cartridge filter is formed. And a fine mesh is stretched all around the inner peripheral surface of the outer tube, and the mesh is made of copper.

In order to achieve the above object, it is desirable that the ratio of the mesh of the mesh mesh to the mesh of the fine mesh in the cartridge filter is about 2: 1 to 3: 1.

In order to achieve the above object, the cartridge filter may be disposable in some cases.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 This form is an embodiment of the invention described in claims 2, 3, 4, 5, 6, 10, and 11. In FIG. 1, A shows a cartridge filter of the hot water suction part of the hot water circulation activation device for bathtub B. This cartridge filter A forms the hot water suction part of the hot water circulation activating device B for the bathtub,
The cartridge A has a lower end which is closed by a reverse cup-shaped first cap 12a having a hot water inlet 12, and an upper end which is closed by a second cap 12b. The protrusion 12c of the first cap 12a, which is located inside the inner pipe 10, has a slit 12d axially cut from the end face thereof. Inner and outer tubes 10,
Reference numeral 11 denotes a net-like tubular body through which hot water can pass, and a flow path through which the hot water sucked from the hot water suction port 12 into the central portion 10a of the inner pipe 10 is discharged from the outer peripheral surface 11a of the outer pipe 11 to the outside. Is formed, and an annular space 13 whose upper and lower ends are closed by the caps 12a and 12b is formed between the inner pipe 10 and the outer pipe 11. The annular space 13 contains impurities in the hot water. The capture agent 14 to be captured is loaded.

At this time, a mesh net 15 is provided all around the outer peripheral surface 10b of the inner pipe 10, and a fine mesh 16 is provided all around the inner peripheral surface 11b of the outer pipe 11. The mesh net 15 has a mesh to the extent that the capture agent 14 does not flow out to the inside of the inner tube 10. The mesh net 16 has a finer mesh than the mesh mesh 15, and the capture agent 14 is the outer pipe. The mesh is so large that it does not flow outside of 11 (Fig. 1).
And FIG. 4). It is preferable that the mesh ratio of the mesh net 15 to the fine mesh 16 is about 2: 1 to 3: 1.

The scavenger 14 is at least one of activated carbon, activated carbon containing silver ions, activated stone, ceramics, zeolite, activated natural stone and porous body made of synthetic resin. Considering its filtering ability and sterilizing ability. In this case, activated carbon containing silver ions is preferable. The cartridge filter A is disposable. The action is described in claim 1.
A description will be given as a typical embodiment of the described method invention.
The cartridge filter A is loaded into the filter housing C. A lid D having a hot water suction hole D2 with a backflow preventing tongue D1 is attached to the lower end of the filter housing C by screwing or the like, and the upper end of the filter housing C is provided in the main body E of the bath hot water circulation activating device B. A connection hose F is connected to the primary side of the circulation pump (not shown). An annular water channel G is formed between the filter housing C and the cartridge filter A (see FIG. 5). The filter housing C and the cartridge filter A are located in the hot water of the bathtub, and the main body E is installed outside the hot water on the edge of the bathtub, the wall of the bathroom, and the floor. In this state, the circulating pump in the main body E is driven, and the tongue valve D1 of the lid D is opened for hot water in the bathtub, and the hot water of the first cap 12a at the lower end is introduced into the cartridge filter A through the hot water suction hole D2. Suction through the suction port 12 (see FIG. 2).

At this time, the slit 1 of the first cap 12a
Due to 2d, the protrusion 12c of the first cap 12a elastically adheres to the inside of the inner tube 10. The sucked hot water is flowed from the inner side of the inner tube 10 of the cartridge filter A to the entire area of the annular space 13 to remove impurities in the hot water from the trapping agent 14.
And the bacteria and the like in the hot water are adsorbed to the scavenger 14 to remove the resin component in the hot water and filter the turbidity, and then the hot water is passed from the outside of the outer pipe 11 to the annular water channel G. After being pumped up by the circulation pump and filtered again by the filtration tank provided in the main body E, the filtered hot water is discharged into the hot water from the hot water discharging portion H communicating with this filtration tank for circulation. The region of the scavenger 14 that comes into contact with the hot water becomes the annular space 13 formed between the inner pipe 10 and the outer pipe 11, and a large region is secured, and among impurities in the hot water, the inner pipe 10 The relatively large amount of hot water is captured by the mesh net 15, and further, the fine mesh 16 of the outer pipe 11 passes through the gap between the trapping agents 14 and goes out of the outer pipe 11. Impurities are trapped.

That is, the outer peripheral surface 11a of the outer tube 11 is not slimmed by impurities. In this way, the capture agent 1
The impurities trapped in 4 are sequentially accumulated from the upper end of the annular space 13 of the cartridge filter A according to the flow of hot water. During the circulation of the hot water, the scavenger 14 has inner and outer tubes 10, 11
The outflow from the inside is prevented by the mesh net 15 and the fine mesh 16. When the filter medium 14 is clogged,
After removing the lid D from the filter housing C, the cartridge filter A is removed from the filter housing C and replaced with a new one.

Embodiment 2 This embodiment is a typical embodiment of the invention described in claims 2, 7, 10 and 11, and the configuration different from Embodiment 1 is as follows.
The cartridge filter A1 includes an inner and outer double tube 10,
11 and its upper end is closed by a first cap H1, and its lower end is attached with a second cap H2 having an opening in the center, and between the outer pipe 11 and the inner pipe 10, An annular gap 13 which is closed by caps H1 and H2 is formed, and the inner and outer pipes 10 are hot water permeable mesh cylinders, and the inner circumference of the outer periphery of the inner pipe 10 of the cartridge filter A1 is intermediate. A mesh 15 is stretched, and a fine mesh 16 is stretched all around the inner peripheral surface of the outer pipe 11, and a copper wire is wound around the inner mesh 15 stretched on the outer peripheral surface of the inner pipe 10. 14a is wound (see FIG. 5).

The operation is almost the same as that of the first embodiment. The different action is that the copper wire 14a and hot water
Bacteria in hot water are sterilized by the action of copper ions. If necessary, the annular gap 13 may be used instead of the copper wire 14a.
At least one of a copper-made granular material and a bar may be filled therein (corresponding to a typical embodiment of the invention according to claim 8). Alternatively, the inner mesh 15 itself may be made of copper (corresponding to a typical embodiment of the invention according to claim 9).

[0025]

According to the present invention, the hot water in the bathtub flows from the inside of the central portion of the cartridge filter to the outside, and the impurities in the hot water are trapped in the cartridge filter and cleaned. Flow along the outer peripheral surface of the cartridge filter, so that slimming of impurities occurs on the inner peripheral surface of the cartridge filter, but it does not occur on the outer peripheral surface at all, and when replacing it, use in contact with the outer peripheral surface of the cartridge filter. This cartridge filter can be replaced without soiling the hands of persons.

In the invention of claim 2, claim 1
The described method invention can be implemented and its effects can be obtained.

In the invention described in claim 3, claim 2
In addition to the effects of the described invention, the hot water sucked from the lower end of the inner pipe rises, passes through the entire peripheral surface of the inner pipe, flows into the annular space, and is trapped in the hot water by the trapping agent in the annular space. Impurities can be captured, and the captured impurities can be accumulated sequentially from the upper end of the annular space along the flow of hot water, and the hot water from which impurities have been removed in this annular space can be discharged from the entire outer peripheral surface of the outer pipe. Since the hot water flowing along the outer peripheral surface to the main body side of the hot water circulation activating device for bathtubs is cleaned, the outer peripheral surface of the cartridge filter is not slimed.

In the invention of claim 4, claim 3
In addition to the effects of the invention described above, bacteria in the hot water can be adsorbed, and the hot water can be filtered. In particular, in the case of activated carbon containing silver ions, various bacteria can be sterilized.

According to the invention of claim 5, in addition to the effects of claims 3 and 4, the net can prevent the trapping agent from flowing out of the tubular space to the outside.

The invention according to claim 6 is the invention as defined in claims 3, 4, and 5.
The effects of the described invention can be more remarkably exhibited.

According to the invention of claim 7, claim 2
In addition to the effects of the described invention, the contact of the copper wire with the hot water can reduce the bacteria in the vortex with copper ions. Furthermore, the hot water from which impurities have been removed in the annular gap can be discharged from the entire outer peripheral surface of the outer pipe, and the hot water flowing along the outer peripheral surface to the main body side of the hot water circulation activating device for bathtub is cleaned. The outer peripheral surface of the cartridge filter and the inner peripheral surface of the filter housing do not become slimy.

According to the invention of claim 8, in addition to the effect of the invention of claim 2, while the hot water sucked from the lower end of the inner pipe rises, it passes through the entire peripheral surface of the inner pipe and enters the annular gap. Inflow, copper powder particles and rods in this annular gap reduce bacteria in the hot water and capture impurities such as paper, and the captured impurities are sequentially from the top of the annular gap along the flow of the hot water. Hot water that has accumulated and has impurities removed in this annular gap can be discharged from the entire outer peripheral surface of the outer pipe, and the hot water flowing along the outer peripheral surface to the main body side of the hot water circulation activating device for bathtubs is cleaned. Therefore, the outer peripheral surface of the cartridge filter and the inner peripheral surface of the filter housing are not slimed. Bacteria in hot water can be sterilized by copper ions.

According to the invention of claim 9, claim 2
In addition to the invention described above, the number of parts can be reduced from those of the inventions according to claims 7 and 8, and various bacteria in the hot water can be sterilized with copper ions when passing through the copper mesh net.

In the invention according to claim 10, the effect of the invention according to claims 6, 7, 8 and 9 can be exhibited without increasing the flow resistance of the hot water by this ratio.

In the eleventh aspect of the invention, in addition to the effects of the second to tenth aspects of the invention, the cartridge can be used in one-through.

[Brief description of drawings]

FIG. 1 is a half sectional view of a first embodiment.

FIG. 2 is a diagram showing a use state of FIG. 1;

FIG. 3 is a partially omitted cross-sectional view of the second embodiment.

4 is a partially omitted exploded perspective view of FIG. 1. FIG.

5 is a partially cutaway front view showing an assembled state of the cartridge filter and the filter housing of FIG. 1. FIG.

[Explanation of symbols]

 A Cartridge filter 14 Capture agent

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location C02F 1/50 520 C02F 1/50 531E 531 540F 540 560B 560 560Z B01D 35/02 J

Claims (11)

[Claims] 1. When the hot water in the bathtub is passed through an annular water passage between a cartridge filter composed of at least inner and outer double pipes of a hot water suction part and a filter housing, sucked by a circulation pump, filtered and cleaned, and then returned to the bathtub. In addition, the suction of the hot water is
It is carried out by passing hot water from the bottom part of the cartridge filter through the inner pipe in the central part of the cartridge pipe to the pump side from the outer peripheral surface of the outer pipe through the annular water channel. A hot water circulation purification method characterized in that impurities are trapped by this trapping agent. 2. A cartridge filter for a hot water circulation purifying apparatus for a bath, which is characterized by carrying out the method according to claim 1. 3. The cartridge filter of the hot water suction portion of the hot water circulation purifying device for bathtubs is composed of at least an inner and outer double pipe,
The lower end of this cartridge filter is closed by a reverse cup-shaped first cap having a hot water inlet, and the upper end is closed by a second cap. The inner and outer pipes are net-like tubular bodies through which hot water can pass. A flow path is formed in the center of the inner pipe to discharge the hot water sucked from the hot water inlet from the peripheral wall of the outer pipe to the outside. 3. An apparatus for hot water circulation activation for a bath according to claim 2, wherein an annular space having closed ends is formed, and a capturing agent for capturing impurities in the hot water is loaded in the annular space. Cartridge filter. 4. The scavenger is activated carbon, activated carbon containing silver ions, activated stone, ceramics, zeolite, activated natural stone,
4. The cartridge filter for a hot water circulation activation device for a bath according to claim 3, wherein the cartridge filter is at least one kind of a synthetic resin porous body. 5. The mesh according to claim 3 or 4, characterized in that a mesh mesh is provided over the entire outer peripheral surface of the inner tube, and a fine mesh is provided over the entire inner peripheral surface of the outer tube. Cartridge filter for hot water circulation activation device for bathtub. 6. The mesh network has a mesh to the extent that the scavenger does not flow out to the inner side of the inner tube, and the mesh network is finer than the mesh network, and the scavenger is of the outer tube. 6. The cartridge filter for the hot water circulation activation device for a bath according to claim 3, 4 or 5, characterized in that it has a mesh that does not flow out to the outside. 7. The cartridge filter comprises at least an inner-outer double tube, an upper end of which is closed by a first cap, and a lower end of which is attached with a second cap having an opening in the center, Between the pipe and the inner pipe, an annular gap whose upper and lower sides are closed by these caps is formed.
The outer tube is a warm water-permeable mesh-like tubular body, and the inner mesh of the cartridge filter is provided with a mesh mesh over the entire outer peripheral surface, and the outer tube is surrounded by a fine mesh mesh. The hot water circulation purifying device for a bathtub according to claim 2, wherein a copper wire is wound around a mesh net that is installed and stretched on the outer peripheral surface of the inner pipe. 8. The cartridge filter comprises at least an inner-outer double tube, the upper end of which is closed by a first cap, and the lower end of which is fitted with a second cap having an opening at the center, Between the pipe and the inner pipe, an annular gap whose upper and lower sides are closed by these caps is formed.
The outer tube is a warm water-permeable mesh-like tubular body, and the inner mesh of the cartridge filter is provided with a mesh mesh over the entire outer peripheral surface, and the outer tube is surrounded by a fine mesh mesh. The hot water circulation purification device for a bathtub according to claim 2, wherein at least one of a powdery material and a rod made of copper is filled in the annular gap. 9. The cartridge filter comprises at least an inner / outer double tube, the upper end of which is closed by a first cap, and the lower end of which is fitted with a second cap having an opening at the center, Between the pipe and the inner pipe, an annular gap whose upper and lower sides are closed by these caps is formed.
The outer tube is a warm water-permeable mesh-like tubular body, and the inner mesh of the cartridge filter is provided with a mesh mesh over the entire outer peripheral surface, and the outer tube is surrounded by a fine mesh mesh. The hot water circulation purification device for a bathtub according to claim 2, wherein the hollow mesh is made of copper. 10. The hot water circulation activating device for a bathtub according to claim 6, 7, 8 or 9, wherein a ratio of the meshes of the intermediate mesh and the fine mesh is about 2: 1 to 3: 1. Cartridge filter for. 11. The cartridge filter according to claim 2, wherein the cartridge filter is disposable.
A cartridge filter for the hot water circulation activating device for a bath according to 6, 7, 8, 9 or 10.