JPH10235117A - Circulatory purifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a biological membrane peeled off the surface of a filter from flowing into a bathtub by providing the device with a bypass flow path which detours at least, one of the purifying means other than those provided in the extreme downstream of the flow path, on that one purifying means, among plural rows on all the purifying means in the flow path. SOLUTION: A bath contained in a bathtub 1 is sent from a suction aperture 2b and a water supply holes 3 to an upstream side purifying tank 7a and a downstream side purifying tank 7b using a circulating pump 6. Normally, a throttling valve 9 is strolled to make a passage of water to a purifying tank 7a on the upstream side in which a fine mesh bobbin filter is mounted, When a clogging occurs, the throttling valve 9 is opened to increase the flow rate of the bath water into a bypass flow path 8 and thereby secure the adequate quantity of a circulating water. During the back wash, the bath water is caused to flow into a back wash flow path 11 from a three-way valve 10a and then is caused to flow back into the downstream purifying tank 7b from the three-way valve 10c to remove filth from the filter. On the other head, when the throttling valve 9 is closed, the upstream side purifying tank 7a is also cleaned and the bath water is drained to the outside through a three-way valve 10b and a drainage flow path 12. Thus it is possible to filter peeled biological membrane in the upstream and clean each of the purifying tanks 7a, 7b by operating the throttling valve 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, various devices have been devised in a circulation purifying apparatus for circulating bath water by a circulating pump and purifying the bath water by a purifying means so as to secure a circulating water amount. For example, a coarse filter is provided on the upstream side and a fine filter is provided on the downstream side to prevent clogging of the filter, or a bypass channel is provided separately from the filter, and the filter is passed through. It is a device to circulate the bath water without using it.

[0003]

However, the former contrivance has a problem that the filter on the downstream side is unavoidably easily clogged, and the circulation channel cannot be secured for a long time. In addition, the latter device has a problem that, although the amount of circulating water can be secured, the biofilm grown on the surface of the filter or the like is separated therefrom, forms a large mass, and flows out into the bathtub.

The present invention has been made in order to solve the above-mentioned problems, and it is necessary to secure a circulation channel for a long period of time, and even if a circulation channel is secured for a long period of time, a biological material that has been separated from the surface of a filter or the like. It is an object of the present invention to provide a circulating purification apparatus in which a membrane does not flow into a bathtub.

[0005]

In order to achieve this object, a circulation purifying apparatus according to a first aspect of the present invention includes a purifying means for purifying water in a flow path for circulating water. As a target, in particular, the purifying means is provided in a plurality of rows in the flow path, and among the purifying means, the purifying means is provided to at least one purifying means other than the purifying means provided at the most downstream of the flow path. It is characterized in that a bypass flow path for bypassing is provided.

[0006] In the circulating purification apparatus according to the first aspect of the present invention, the water circulating in the flow path is first purified through a purification means provided in the flow path.
Alternatively, it flows through a bypass flow path that bypasses at least one purifying means other than the purifying means provided at the most downstream side of the flow path. Thereafter, the water is purified through purification means provided at the most downstream of the flow path.

[0007] The circulating purification device according to claim 2 is
Each of the purifying means is provided with filter means having a different capture roughness.

In the circulating purification apparatus according to claim 2, the filter means has different trapping roughness, and the water circulating in the flow path has a different trapping roughness. Purified through means.

Further, the circulating purification device according to claim 3 is
It is characterized by comprising a water amount adjusting means for adjusting the amount of water supplied to each of the purifying means.

In the circulating purification apparatus according to the third aspect of the present invention, the amount of water circulating in the flow path is adjusted by the water amount adjustment means, and the adjusted amount of water is circulated in the flow path. Purified through purification means.

Further, the circulating purification device according to the fourth aspect is characterized in that the circulating purification device is provided with cleaning means for individually cleaning the respective purification means.

[0012] In the circulating purification apparatus according to claim 4, having the above-mentioned configuration, the cleaning means individually cleans each of the purification means by circulating water through the flow path.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a basic configuration diagram of a circulating purification apparatus according to the present embodiment. This circulating purification device purifies and sterilizes bath water stored in the bathtub 1 and contaminated with time while circulating a pump outside the bathtub 1.

That is, the circulating purification apparatus according to the present embodiment comprises a water supply / drainage unit 2 which is detachably provided in a bathtub 1 serving as a hot water storage tank, and a water supply / drainage hose 3 and a drainage hose 4 connected to the water supply / drainage unit 2. And 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 / drainage unit 2 has a discharge port 2a for returning bath water purified and sterilized in the apparatus main body 5 to the bathtub 1, and a suction port 2b for sucking bath water from the bathtub 1.
It is composed of

Inside 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, drainage hoses 4 for refluxing the purified bath water from the apparatus main body 5 are connected to the discharge ports 2a, respectively. Thereby, when a circulating purification device described later is operated, bath water in the bathtub 1 flows into the device main body 5 via the suction port 2b and the water supply hose 3 by the circulating pump 6, and
Here, after being purified and sterilized, the water returns to the bathtub 1 again through the drainage hose 4 and the discharge port 2a and circulates.

As shown in FIG. 1, the apparatus main body 5 includes a bathtub 1.
A pump 6 for pumping and circulating bath water from the water, and adsorbing and decomposing organic substances and other pollutants contained in the bath water.
An upstream purification tank 7a and a downstream purification tank 7b, which are purification means disposed in series for purification by filtration or the like, and a bypass flow path 8 that bypasses the upstream purification tank.
Each of the upstream purification tank 7a and the downstream purification tank 7b is loaded with a thread-wound filter as a filter means. Different capture roughness. That is, the upstream purification tank 7a is suitable for improving the physical filtration capacity because the trapping roughness is fine, and the downstream purification tank 7b is suitable for securing the circulation flow path because clogging is unlikely to occur. In the bypass passage 8, a throttle valve 9 serving as a water amount adjusting means is provided. The throttle valve 9 is throttled when the circulating bath water flows through the upstream septic tank 7a having a large flow path resistance, and increases the circulating water amount of the bath water.
Or, when the upstream side septic tank 7a is clogged, it is opened.

There is a branch point upstream of the throttle valve 9 and the upstream purification tank 7a, and three-way valves 10a and 10b
Are arranged. Further, a three-way valve 10c is disposed downstream of the downstream purification tank 7b. Three-way valves 10a and 10c
A backwash flow path 11 that bypasses the upstream purification tank 7a and the downstream purification tank 7b communicates with each other. The three-way valve 10b is provided with a drain flow path 12 that discharges water to the outside.

When a flow path in a normal use state (hereinafter referred to as a normal flow path) is set by the three-way valve 10a, bath water is discharged from the circulation pump 6 and passes through the three-way valves 10a and 10b. Then, the water flows into the upstream purification tank 7a and the downstream purification tank 7b, and impurities are removed by the purification tanks.
Then, through the three-way valve 10c, the water flow control valve 13 described later
Leads to. On the other hand, the upstream septic tank 7a and the downstream septic tank 7
When the backwash channel 10 for washing b is set,
Bath water is discharged from the circulation pump 6, flows through the backwash channel 11 from the three-way valve 10a, and further flows from the three-way valve 10c to the downstream purification tank 7b. Here, first, only the downstream purification tank 7b located downstream of the flow path is cleaned. That is, the throttle valve 9 is opened, and the bath water passes through the downstream purification tank 7b to remove impurities in the downstream purification tank 7b, and then flows into the bypass flow path 8 together with the removed impurities.

Next, the upstream side purification tank 7a is washed. That is, the throttle valve 9 is closed, and the bath water passes through the downstream purification tank 7b whose washing has been completed and the flow path resistance has been reduced, passes through the upstream purification tank 7a, and removes impurities in the upstream purification tank 7a. . The bath water mixed with the impurities flows from the three-way valve 10b through the drain passage 12 to the outside. The three-way valves 10a to 10c, the backwash channel 11, the upstream purification tank 7a, the downstream purification tank 7b, the throttle valve 9, and the drainage channel 12 constitute a cleaning means for sequentially cleaning the purification means from the downstream side.

The apparatus main body 5 has a heating tank 14 for heating a part of the circulating bath water to a sterilization temperature of 75 ° C. or higher.
And a first flow path 16 provided with a sterilization tank 15 for performing sterilization by holding the heated bath water at a sterilization temperature for a predetermined time, for example, 1 minute or more, and a sterilization tank avoiding the heating tank 14. Fifteen
A bypass flow path 17 communicating with the downstream side. A water flow control valve 13 is provided at a branch point between the first flow path 16 and the bypass flow path 17, and the water flow to the first flow path 16 and the bypass flow path 17 is controlled by the water flow control valve 13. Adjusted. The throttle valve 9, the three-way valve 10a,
10c, the circulating pump 6, and the heating tank 14 are connected to a control circuit (not shown), and are individually controlled for various purposes such as starting and stopping the apparatus, sterilizing hot water, and performing backwash drainage.

In this embodiment, the heating tank 14
A voltage and a current are applied to the heater 14a installed therein, and the bath water is controlled so as to be always at least 75 degrees. Then, after the bath water that has reached 75 degrees or more merges with the bath water flowing through the bypass passage 17, the water amount adjustment valve 13 is moved to the first flow passage so that the combined bath water has an appropriate temperature for bathing. The distribution ratio of the bath water flowing to the bypass passage 16 and the bypass passage 17 is adjusted.

Next, the operation of each component will be described.

In FIG. 1, when power is supplied to the apparatus main body 5, the circulation pump 6 is operated, and the bath water in the bathtub 1 is discharged.
The water is sucked from the inlet 2b through the water supply hose 3 and sent to the upstream purification tank 7a and the downstream purification tank 7b for purification. During normal operation, the throttle valve 9 is throttled to increase the amount of water flowing to the upstream purification tank 7a loaded with the fine thread winding filter, thereby improving the physical filtration capacity. When the upstream side septic tank 7a becomes clogged, the throttle valve 9 is opened to increase the amount of water flowing to the bypass passage 8 and secure the circulating water amount.

During the backwashing operation, bath water flows from the three-way valve 10a through the backwash channel 11, and flows from the three-way valve 10c into the downstream purification tank 7b in the opposite direction. At this time, the throttle valve 9 is opened, and most of the bath water discharged from the circulation pump 6 flows into the bypass flow passage 8 from the opposite direction without shunting, thereby removing dirt adhering to the filter of the downstream purification tank 7b. Remove,
The water flows through the drain passage 12 from the three-way valve 10b and flows out. Next, when the throttle valve 9 is closed, all of the bath water is
It passes through the already cleaned downstream purification tank 7b, flows into the upstream purification tank 7a, and cleans its filter.

During normal operation, a part of the purified bath water flows through the first flow path 16, is heated to a predetermined sterilization temperature of 75 ° C. or higher in the heating tank 14, and is temporarily stored in the sterilizing tank 15. Is stored in For this reason, it is possible to maintain the sterilization temperature at 75 ° C. for a period of time (for example, 1 minute or more) from being heated in the heating tank 14 to joining the bypass flow path 17,
Sterilization can be ensured.

On the other hand, the bath water flowing through the bypass flow path 17 joins the first flow path 16 downstream of the sterilization tank 14, reaches a suitable bathing temperature of about 40 ° C., flows through the drain hose 4, and discharges. It recirculates from the outlet 2a to the bathtub 1. Therefore, a large amount of bath water can be circulated while performing heat sterilization.

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

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

In this embodiment, the bypass passage 8
Is provided outside the upstream purification tank 7a, but may be provided inside the upstream purification tank 7a as shown in FIG.

Further, in this embodiment, the water amount adjusting means is provided in the middle of the bypass passage 8, but one water amount adjusting means may be provided at a branch point of the flow passage.

In the present embodiment, the upstream side septic tank 7
In the description, one backwash channel 11 is provided in each of the purifiers 7a and the downstream purifier 7b in a plurality of rows. Is also good.

Further, in the present embodiment, the purifying means is two
Although the arrangement has been described, three or more may be arranged.

[0035]

As is apparent from the above description, in the circulation purifying apparatus according to the first aspect of the present invention, water circulating in the flow path is purified through the purification tank provided in the flow path. Alternatively, since the water flows through a bypass flow path that bypasses at least one purification tank other than the purification tank provided at the most downstream of the flow path, the flow path resistance of the water decreases, and the amount of circulating water increases. it can.

Thereafter, the water is purified through the septic tank provided at the most downstream of the flow path, so that the biofilm separated from the septic tank disposed upstream of the flow path can be filtered.

Further, in the circulating purification apparatus according to the present invention, since each of the purification tanks is provided with a filter having a different trapping roughness, the purification tank having a small trapping roughness can improve the physical filtration capacity. In a septic tank with a high capture roughness, the amount of circulating water can be ensured for a long time.

According to the third aspect of the present invention, since the amount of water flowing through each of the septic tanks is adjusted by the throttle valve, the physical filtration capacity or circulation of each of the septic tanks depends on the degree of clogging of each of the septic tanks. The amount of water can be adjusted.

Further, according to the circulating purification device of the present invention, the water that has passed through the backwash channel cleans the purification tank by the throttle valve, so that each purification tank can be strongly washed. The efficiency of the circulation pump for circulating water can also be improved.

[Brief description of the drawings]

FIG. 1 is a basic configuration diagram of a circulation purification device according to an embodiment of the present invention.

FIG. 2 is a basic configuration diagram showing a modification of the circulation purification device of the present embodiment.

[Explanation of symbols]

 6 Circulating pump 7a Upstream purification tank 7b Downstream purification tank 8 Bypass flow path 9 Throttle valve 11 Backwash flow path

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masayuki Arakawa 15-1 Naeshiro-cho, Mizuho-ku, Nagoya

Claims (4)

[Claims] 1. A circulation purifying apparatus comprising a purifying means for purifying water in a flow path for circulating water, wherein the purifying means is provided in a plurality of rows in the flow path, and among the purifying means, the flow path A circulation purifying apparatus, characterized in that at least one purifying means other than the purifying means provided at the most downstream of the above is provided with a bypass flow path bypassing the purifying means. 2. The circulation purifying apparatus according to claim 1, wherein each of the purifying units includes a filter unit having a different trapping roughness. 3. The circulation purifying apparatus according to claim 1, further comprising a water amount adjusting means for adjusting an amount of water supplied to each of the purifying means. 4. The circulating purification apparatus according to claim 1, further comprising a cleaning unit for individually cleaning each of the purification units.