JPH10309412A - Circulating purification facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a stable capture filtration capacity for a period of long time by the method wherein in a circulation purification facility to which a purification means of a different trapping mesh is arranged, a stable flow rate is made to flow to a purification means of a fine trapping mesh. SOLUTION: A purification tank 7a constitutes a purification means of a fine trapping mesh, and a purification tank 7b constitutes respectively a purification means of a rough trapping mesh. The purification tank 7a in order to improve a physical filtration capacity, and the purification tank 7b in order to make difficult to be clogged are suitable for securing a circulation flow rate. Then, to a downstream of the purification tank 7a, a constant flow rate valve 8a for making a stable flow rate flow to the purification tank 7a is arranged. When a power source is made to a circulating clarification facility main body 5, a circulation pump 6 is operated, bathing water in a bath tank 1 is sucked from a suction opening 2b through a water feed hose 3, sent to the purification tanks 7a, 7b, and purified. Since a constant flow rate valve 8a is arranged to the downstream of the purification tank 7a on which a spool filter of a fine mesh size is mounted, and a flow rate flowing to the purification tank 7a is specified, a stable flow rate flows to the purification tank 7b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating purification apparatus, and more particularly to a circulating purification apparatus for circulating a liquid contaminated with use over time, such as bath water in a bathtub or hot water in a pool. The present invention relates to a circulating purification device for home use and business use.

[0002]

2. Description of the Related Art Conventionally, in a circulating purifying apparatus in which bath water is circulated by a circulation pump and purifying water is purified by a purifying means, purifying means having different capture roughness are used in order to secure both the purifying ability and the circulating flow rate. It was expected that the purifying means with the fine trapped roughness would be able to secure the purification capacity, and the purifying means with the coarse trapped roughness would be required to secure the circulation flow rate.

[0003]

However, the purifying means having a fine trapping roughness can secure a large flow rate in addition to the purifying ability in the early stage of use, but the fact that a large flow rate can be secured means that the waste is collected earlier. That leads to
There has been a problem that clogging occurs in a short period of time, so that a flow rate cannot be secured and filtration is not performed.

Accordingly, an object of the present invention is to provide a circulating purification apparatus capable of maintaining a stable collection and filtration capability for a long period of time by flowing a stable flow rate through a purification means having a small capture roughness. I have.

[0005]

In order to achieve the above object, a circulation purifying apparatus according to a first aspect of the present invention comprises a purifying means having a coarse trapping roughness in a circulation flow path for circulating a liquid. For those equipped with fine purification means,
In particular, a constant flow valve is provided for keeping the flow rate of the liquid constant in connection with the purifying means having a fine trapping roughness.
Therefore, the flow rate through the purifying means having a small trapping roughness is stabilized, and a stable collection and filtering ability is maintained for a long period of time.

[0006] The circulating purification device according to claim 2 is
In the circulation flow path, the first end and the end are connected to the circulation flow path, respectively, and a first flow path having a purifying means with fine trapping roughness, and a second flow path having a purifying means with coarse trapping roughness Are provided in parallel, and the constant flow valve is provided in the first flow path. Accordingly, the flow rate through the purifying means having a small capture roughness provided in the first flow path is stabilized, and the collection and filtration capacity is maintained for a long period of time. Is secured.

[0007] The circulating purification apparatus according to claim 3 is
In the circulating flow path, the starting end and the end are connected to the circulating flow path, respectively, and a purifying flow path having a purifying means with a fine trapping roughness, and a bypass flow path bypassing the purifying means with a fine trapping roughness. Provided in parallel, the constant flow valve is provided in the purification flow path. Therefore, the flow rate through the purifying means having a small capture roughness provided in the purifying flow path is stable,
A stable collection and filtration capacity is maintained over a long period of time, and a circulation flow rate is secured by the bypass flow path.

[0008] The circulation purifying apparatus according to claim 4 is
The circulation flow path is provided with another constant flow valve different from the constant flow valve. Therefore, the total circulating flow rate flowing through the circulation flow path is stabilized, and the flow rate flowing through the purifying means having the coarse trapping roughness is also stabilized, so that the collection and filtering capacity of the purifying means having the coarse trapping roughness is also maintained for a long time. You.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a circulating purification apparatus according to the present invention will be described with reference to the accompanying drawings by way of preferred embodiments.

FIG. 1 shows a schematic configuration of a circulation purifying apparatus according to a first embodiment of the present invention. This apparatus purifies bath water which is stored in the bathtub 1 and is polluted with time while being pumped outside the bathtub 1.

That is, the circulating purification apparatus of the present embodiment comprises a water supply / drainage unit 2 which is detachably disposed in a bathtub 1 as a hot water storage tank, and a water supply / drainage unit 2 which is connected to the water supply / drainage unit 2 via a water supply hose 3 and a drainage hose 4. It is basically composed of an apparatus main body 5 to be connected.

The water supply / drainage unit 2 is detachably attached to the inner wall surface of the bathtub 1 and is located below a general storage level of bath water. The water supply / drain unit 2 includes a discharge port 2 a for returning bath water purified and sterilized in the apparatus main body 5 to the bathtub 1, and a suction port 2 b for sucking bathwater from the bathtub 1.

In the water supply / drainage unit 2, a water supply hose 3 for supplying bath water to the apparatus main body 5 has a suction port 2b.
Further, a drain hose 4 for circulating purified bath water from the apparatus main body 5 is connected to the discharge port 2a. Thereby, when a circulating purification device described later is operated, bath water in the bathtub 1 flows into the device body 5 through the suction port 2b and the water supply hose 3 by the circulating pump 6, and is purified and sterilized therein. Later, drain hose 4
And circulates back to the bathtub 1 again through the discharge port 2a. In addition, the water supply hose 3 and the drainage hose 4 constitute a circulation channel of the present invention.

As shown in FIG. 1, a circulating pump 6 for pumping and circulating bath water from a bathtub 1 and purifying organic substances and other contaminants contained in the bath water by adsorption, decomposition, filtration, etc., as shown in FIG. Purification tanks 7a and 7b. The septic tanks 7a and 7b are arranged in a first flow path 21 and a second flow path 22 provided in parallel, respectively. The septic tanks 7a and 7b are loaded with a thread-wound filter, and the winding density of the septic tank 7a is about 10 μm and the trapping density is about 150 μm. In other words, the septic tank 7a is suitable for improving the physical filtration capacity, and the septic tank 7b is suitable for preventing clogging and ensuring a circulating flow rate. Downstream of the septic tank 7a, a constant flow valve 8a for flowing a stable flow rate to the septic tank 7a is provided. The septic tank 7a constitutes a purifying means of the present invention with fine trapping roughness, and the septic tank 7b constitutes a purifying means with coarse trapping roughness.

Upstream of the branch point between the septic tanks 7a and 7b,
Similarly, a three-way valve 9a is provided downstream of the junction, and a three-way valve 9b is diverted upstream of the three-way valve 9a.
A backwash flow path 10 that bypasses the flow path communicates with the three-way valve 9b, and a drain water flow path 11 is provided in the three-way valve 9a. Three-way valve 9
When the normal flow path is set by a and b, the bath water discharged from the circulation pump 6 flows into the purification tanks 7a and 7b through the three-way valve 9a, and after the impurities are removed there, the three-way valve Through 9b, the flow reaches a flow control valve 12 described later.
On the other hand, when the backwash channel is set, as shown in FIG. 2, bath water discharged from the circulation pump 6 flows through the backwash channel 10 and flows from the three-way valve 9b to the purification tanks 7a and 7b. . The bath water removes impurities clogged in the filter, and at the same time, flows through the drain passage 11 from the three-way valve 9a to the outside.

The apparatus main body 5 has a heating tank 13 as a heating means for heating a part of the circulating bath water to a sterilizing temperature of 75 ° C. or higher, and a sterilizing temperature of at least one minute for the heated bath water. And a flow path 16 provided with a sterilization tank 14 as sterilization means for holding and sterilizing, and a flow path 16 avoiding the heating tank 13 and communicating downstream from the sterilization tank 14. A flow control valve 12 is provided at a branch point between the flow path 15 and the flow path 16.
The flow control valve 12 controls the flow path 1.
5. The flow rate to the flow path 16 is adjusted respectively. The three-way valves 9a, b, the circulation pump 6, and the heating tank 13 are connected to a control circuit (not shown), and are individually provided for various purposes such as starting and stopping the apparatus, sterilizing warm water, and performing backwashing and draining. Controlled.

In the present embodiment, the heating tank 13
75 ° C when power is supplied to the heater 13a
The above bath water is generated, and after merging with the bath water flowing through the flow path 16, the bathing water is adjusted to an appropriate temperature so that it can be bathed.
The distribution ratio of the bath water to the flow path 15 and the flow path 16 is adjusted by the flow control valve 12, and the value of the voltage or current applied to the heater 13a is controlled.

Next, the operation of each component will be described.

In FIG. 1, when the power is turned on to the apparatus main body 5, the circulating pump 6 is operated, and the bath water in the bathtub 1 is discharged.
The water is sucked through the water supply hose 3 from the suction port 2b and sent to the purification tanks 7a and 7b for purification. A constant flow rate valve 8a is provided downstream of the septic tank 7a loaded with a finely wound filter, so that a stable flow rate flows. This allows
The septic tank 7a exhibits a stable collection and filtering ability over a long period of time.

During the backwash operation, bath water flows through the backwash channel 10 and flows from the three-way valve 9b into the purification tanks 7a and 7b from the opposite direction. At this time, the bath water discharged from the circulation pump 6 removes dirt adhering to the filter, flows through the drain passage 11 from the three-way valve 9a, and flows out to the outside.

During normal operation, a part of the purified bath water flows through the flow path 15, is heated to a predetermined sterilization temperature of 75 ° C. or higher in the heating tank 13, and is temporarily stored in the sterilizing tank 14. . Therefore, after being heated in the heating tank 13, the flow path 16
Since it can be maintained at the sterilization temperature of 75 ° C. (for example, 1 minute or more) until it merges with the water, sterilization can be surely performed.

On the other hand, the bath water flowing through the flow path 16 joins the flow path 15 downstream of the sterilization tank 14 and has a suitable temperature of 40 ° C.
It flows through the drain hose 4 and returns to the bathtub 1 from the discharge port 2a. Therefore, a large amount of bath water can be circulated while performing heat sterilization.

Next, a second embodiment of the present invention will be described.

FIG. 3 shows a schematic configuration of a circulation purification apparatus according to the second embodiment.

Here, the arrangement of the septic tank and the constant flow valve different from the above-described embodiment will be described.

Downstream of the circulation pump 6, there is provided a purification passage 23 having a purification tank 7a, and a bypass passage 24 provided in parallel with the purification passage 23 to bypass the purification tank. On the other hand, a septic tank 7b is arranged in series. The purification flow path 23 is provided with a constant flow rate valve 8a, and the flow rate is kept constant. A constant flow valve 8b is provided downstream of the septic tank 7b so that the total circulation flow is regulated.

Next, the operation of the above configuration will be described.

In FIG. 3, the bath water sent from the circulation pump 6 is diverted through a three-way valve 9a, and a part of the water is filtered by a purification tank 7a. The constant flow rate valve 8a is provided downstream of the septic tank 7a, and the flow rate flowing through the septic tank 7a is regulated, so that a stable collection and filtering ability can be obtained over a long period of time. The filtered bath water joins the bath water that bypasses the septic tank 7a, and then flows through the septic tank 7b, where relatively large waste is collected and filtered. The constant flow rate valve 8b provided downstream of the septic tank 7b allows a stable flow rate to flow through the septic tank 7b, so that a stable collection and filtration capacity and a total circulation flow rate can be maintained over a long period of time.

The configuration of the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the scope of the invention.

For example, in this embodiment, a thread-wound filter is used as the purifying means, but the filtering material is not limited to this, and may be sand, diatomaceous earth, barley stone, ceramic balls, activated carbon, or the like.

Further, an on-off valve or the like may be provided in the flow path in which the purification tanks 7a and 7b are provided, and backwashing may be individually performed.

Further, three or more purifying means may be provided.

Further, in the second embodiment, the septic tanks 7a and 7b are arranged in series, but they may be arranged in parallel as shown in FIG. In this case, the constant flow valve 8b may also be disposed in parallel immediately after the septic tank 7b.

[0034]

As is apparent from the above description,
The circulating purification device according to claim 1 of the present invention is intended for a device in which a purifying means having a coarse trapping roughness and a purifying means having a fine trapping roughness are disposed in a circulation flow path for circulating a liquid, A constant flow valve for maintaining a constant flow rate of the liquid is provided in association with the purifying means having a fine trapping roughness. Therefore, the flow rate through the purifying means having a small trapping roughness is stabilized, and a stable collection and filtering ability is maintained for a long period of time.

Further, the circulating purification device according to claim 2 is
In the circulation flow path, the first end and the end are connected to the circulation flow path, respectively, and a first flow path having a purifying means with fine trapping roughness, and a second flow path having a purifying means with coarse trapping roughness Are provided in parallel, and the constant flow valve is provided in the first flow path. Accordingly, the flow rate through the purifying means having a small capture roughness provided in the first flow path is stabilized, and the collection and filtration capacity is maintained for a long period of time. Is secured.

The circulating purification device according to claim 3 is
In the circulating flow path, the starting end and the end are connected to the circulating flow path, respectively, and a purifying flow path having a purifying means with a fine trapping roughness, and a bypass flow path bypassing the purifying means with a fine trapping roughness. Provided in parallel, the constant flow valve is provided in the purification flow path. Therefore, the flow rate through the purifying means having a small capture roughness provided in the purifying flow path is stable,
A stable collection and filtration capacity is maintained over a long period of time, and a circulation flow rate is secured by the bypass flow path.

Further, the circulation purifying apparatus according to claim 4 is
The circulation flow path is provided with another constant flow valve different from the constant flow valve. Therefore, the total circulating flow rate flowing through the circulation flow path is stabilized, and the flow rate flowing through the purifying means having the coarse trapping roughness is also stabilized, so that the collection and filtering capacity of the purifying means having the coarse trapping roughness is also maintained for a long time. You.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a basic configuration of a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a valve position at the time of cleaning the septic tank according to the first embodiment of the present invention.

FIG. 3 is a schematic diagram showing a basic configuration of a second embodiment of the present invention.

FIG. 4 is a schematic diagram showing a basic configuration of a modified example of the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bath tub 3 Water supply hose 4 Drain hose 5 Device main body 6 Circulation pump 7a Purification tank 7b Purification tank 8a Constant flow valve 8b Constant flow valve 21 First flow path 22 Second flow path 23 Purification flow path 24 Bypass flow path

Claims (4)

[Claims] 1. A circulating purification apparatus in which a purifying means having a coarse trapping roughness and a purifying means having a fine trapping roughness are arranged in a circulation flow path for circulating a liquid, wherein the purifying means is associated with the purifying means having a fine trapping roughness. And a constant flow valve for maintaining a constant flow rate of the liquid. 2. A circulating flow path having a first flow path having a starting end and an ending end connected to the circulating flow path, respectively, and having a purifying means with fine trapping roughness, and a purifying means with coarse trapping roughness. The circulating purification device according to claim 1, wherein a second flow path is provided in parallel, and the constant flow valve is provided in the first flow path. 3. A purifying flow channel having a purifying means having a fine trapping roughness, a starting end and a terminating end being connected to the circulating flow channel, respectively, and bypassing the purifying means having a fine trapping roughness. The circulation purification device according to claim 1, wherein a bypass flow path is provided in parallel, and the constant flow valve is provided in the purification flow path. 4. The circulation purifying apparatus according to claim 2, wherein the circulation flow path further includes another constant flow valve different from the constant flow valve.