JP2002001010A - Rain water purification apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily remove floating and separated substances by using a rain water purification apparatus to be employed for removing impurities contained in rain water in order to effectively utilize rain water. SOLUTION: The rain water purification apparatus 1 is an apparatus in which rain water supplied to a separation chamber 4a in the front part is led to respective separation chambers 4b to 4d and impurities (x), (y) contained in the rain water are separated by flotation or precipitation by the specific gravity difference and rain water made clean is discharge out of the separation chamber 4d in the rear part through a flowing out port 6 opened in the chamber 4a, and a switching valve 7 capable of closing the flowing out port 6 is installed in the flowing out port 6 and overflow holes 8 are formed each at a position higher than the flowing out ports 6 of the respective separation chambers 4b to 4d. At the time of raining, the flowing pot 6 is closed by the switching valve 7 to increase the water level and make the rainwater overflowing the overflow holes 8, so that impurities (x) such as oils and soot floating on the water surface can be discharged together with the rain water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rainwater purifying apparatus used for removing impurities mixed in rainwater.

[0002]

2. Description of the Related Art Rainwater is used for domestic water, for example, for flush toilets.
In the case where water is effectively used as water for car washing, bathing, and the like, it is necessary to store a predetermined amount of rainwater in a water storage tank in advance so that rainwater can be supplied at any time when used. Conventionally, when storing rainwater falling on a roof in a water storage tank, the rainwater is guided from a downspout attached to a side wall of the building, and the rainwater is directly poured into the water storage tank.

[0003]

By the way, rainwater contains:
It contains fine oil particles that are discharged from the ventilation openings of kitchens and float in the air, soot in automobile exhaust gas, dust and dust that is blown up on the roof, and other impurities. In the configuration, the rainwater mixed with such impurities is directly supplied to the water storage tank and used for use. For this reason, in the use of rainwater, purification of rainwater has been demanded.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a rainwater purifying apparatus which can remove impurities from rainwater and purify the same before supplying the rainwater to a water storage tank, and which can easily perform a cleaning operation.

[0005]

According to the present invention, a liquid tank formed in a rectangular housing is partitioned by a partition plate to form a plurality of separation chambers that are continuous in the front-rear direction, and a communication formed below the partition plate. The adjacent separation chambers are connected to each other by the mouth, and the rainwater supplied to the front separation chamber flows into each separation chamber, and the impurities mixed in the rainwater in each separation chamber float or sediment due to the difference in specific gravity. A rainwater purifying device for separating clean rainwater from an outlet opened to a rear separation chamber, wherein the outlet is provided with an on-off valve capable of closing the outlet, and a required separation is provided. An overflow hole is provided at a height position above a flow outlet of a chamber, which is a rainwater purification device.

In such a configuration, when rainwater guided from the downspout is supplied to the front separation chamber during rainfall, the rainwater flows out of the outlet of the rear separation chamber through the plurality of separation chambers. During this time, in each separation chamber, impurities having a low specific gravity such as oil and soot mixed in rainwater float and separate, while impurities having a high specific gravity such as dust and the like precipitate and separate. Thereby, the clean rainwater from which such impurities have been removed can be sent to the water storage tank. Further, at the time of rainfall, by closing the outlet by an on-off valve provided at the outlet, the water level rises, and rainwater overflows from the overflow hole. At this time, oil and soot floating on the water surface The separated material is discharged together with the rainwater, and the floating separated material in the separation chamber can be easily removed.

Further, in the above configuration, it is possible to propose a configuration in which the partition plate is detachably provided and a cleaning outlet provided with an on-off valve is provided at the bottom of the liquid tank. Here, the liquid tank partitioned into a plurality of separation chambers by the partition plate needs to be frequently cleaned in order to maintain cleanliness. At this cleaning, the liquid is removed by removing the detachable partition plate. The tank is greatly opened, making cleaning easy. Further, the water in the liquid tank can be easily discharged by opening the on-off valve at the bottom and opening the discharge port for cleaning. Furthermore, at this time, the bottom of the liquid tank becomes a series, and the sediment sedimented at the bottom of the liquid tank can be discharged from the cleaning outlet, so that the sediment separated from the liquid tank can be easily removed. Can be.

Further, in the above configuration, it is possible to propose a configuration in which porous ceramics having excellent adsorptivity are arranged in a required separation chamber at a position where the ceramic is exposed to a flow of rainwater flowing from a communication port of the partition plate. . By arranging the porous ceramics having excellent adsorptivity in this way, the porous ceramics can provide a deodorizing and oil removing action for rainwater and activate water.

In the above structure, an overflow chamber is provided on a side of the liquid tank along the front-rear direction via a tank wall, and an overflow hole communicating with a required separation chamber is provided in the tank wall. In addition, a configuration in which a drain port is provided at the bottom of the overflow chamber may be proposed. With such a configuration, the pipe extending from the overflow hole can be eliminated, and the appearance is excellent.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a liquid tank 2 formed in a rectangular housing is divided into partition plates 3a, 3b, 3c.
A plurality of separation chambers 4a, 4
b, 4c, and 4d, and the adjacent separation chambers are communicated with each other by communication ports 5 (see FIG. 3) formed in the lower portions of the partition plates 3a to 3c, and are supplied to the front separation chamber 4a. Rainwater flows into each of the separation chambers 4b to 4d, and
In the rainwater purifying apparatus 1 that separates the impurities x and y mixed in the rainwater by floating or sedimentation due to the difference in specific gravity by separating the rainwater through the outlet 6 opened in the rear separation chamber 4d. The outlet 6 is provided with an on-off valve 7 capable of closing the outlet 6, and the required separation chambers 4b to
An overflow hole 8 is provided at a height position 4 d above the outlet 6.

Hereinafter, a specific embodiment of the rainwater purifying apparatus 1 will be described with reference to FIGS. The liquid tank 2 is formed into a rectangular housing by front and rear tank walls 9a and 9b, side tank walls 9c and 9d, and a bottom wall 9e.
An overflow chamber 10 is connected to a side portion along the front-rear direction of the container 1 via a tank wall 9c. Here, the overflow chamber 10 has front and rear walls and a bottom wall integrated with tank walls 9a and 9b and a bottom wall 9e before and after the liquid tank 2 extending laterally. By providing the outer wall 9f opposite to the tank wall 9c that also serves as the outer wall, the outer surface is shielded in a watertight manner. An on-off valve 11 is provided at the bottom of the liquid tank 2.
A discharge port 12 for cleaning provided with a drain port 13 is provided at the bottom of the overflow chamber 10.

In the liquid tank 2, three partition plates 3 movably supported up and down by tank walls 9 c and 9 d on the side along the front-rear direction.
a, 3b, and 3c are arranged at substantially equal intervals in the front and rear, and the liquid tank 2 is divided into four separation chambers 4a by the partition plates 3a to 3c.
4b, 4c, and 4d. The separation chambers 4a to 4
d, as shown in FIG. 3, a plurality of communication ports 5 formed in the lower portions of the partition plates 3a to 3c respectively allow adjacent separation chambers, that is, separation chambers 4a and 4b, 4b and 4c, 4c and 4c.
d are communicated with each other.

The partition plates 3a to 3c are vertically slidably fitted into a pair of front and rear guide edges 15a, 15b whose both side edges are arranged opposite to the tank walls 9c, 9d, and are detachable. It has become. A short water flow regulating plate 17 is provided at the lower part of each of the partition plates 3a to 3c behind the communication port 5 via a flow gap 16 so that an upward water flow is generated by the water flow regulating plate 17. It has become.

Further, a support vessel 18 having water permeability is disposed on each of the partition plates 3a to 3c above the water flow regulating plate 17 at a position exposed to an upward water flow generated by the water flow regulating plate 17. Each support vessel 18 has a plurality of porous ceramics 19 loaded therein. As the porous ceramics 19, those having high hydrophilicity, being porous and having a large total surface area are desirable, and those obtained by firing a silica-alumina-based material at a high temperature are suitably used. Since this porous ceramics 19 is excellent in adsorptivity, it has the effect of deodorizing rainwater and removing oil components.
Since it is porous, water can be activated.

The tank wall 9a of the front separation chamber 4a is provided with a rainwater supply port 20, and the supply port 20 is connected to the separation chamber 4a.
It is opened facing the upper part of a. The separation chamber 4
In a, a basket housing 21 surrounding a part or the entire outer periphery is detachably mounted by a filtering member 35 such as a punching metal or a wire mesh having countless small holes. In this case, relatively large impurities such as tree leaves mixed in rainwater are collected.

On the other hand, a trap tube 22 is provided in the rear separation chamber 4d. As shown in FIG. 1, the trap tube 22 is formed in an inverted L-shape having an introduction tube portion 23a and a discharge tube portion 23b.
4 is opened at a lower position of the separation chamber 4d, while the discharge pipe 23b is connected to the outlet 6 opened at the upper part of the tank wall 9b of the separation chamber 4d. In addition, the liquid tank 2 is connected to the outlet 6.
An opening / closing valve 7 is provided on the outer side of the outlet, so that the outflow port 6 can be closed as required by the opening / closing valve 7.

The required separation chambers 4b to 4d and the overflow chamber 10 communicate with the tank wall 9c of the liquid tank 2 located on the overflow chamber 10 side at a height above the outlet 6. A plurality of overflow holes 8 are provided to allow rainwater to overflow from the overflow holes 8 when the water level in the liquid tank 2 rises. Here, the rainwater that has flowed out of the overflow hole 8 is received by the overflow chamber 10 and drained from the drain port 13 at the bottom. Thereby, the overflow chamber 10 can eliminate the pipe extending from the overflow hole 8 and improve the aesthetic appearance.

A lid 25 integrally covering the upper openings of the liquid tank 2 and the overflow chamber 10 is provided above the liquid tank 2 and the overflow chamber 10. The lid 25 can hermetically shield the upper openings of the liquid tank 2 and the overflow chamber 10 via a packing 26 attached along the upper edges of the liquid tank 2 and the overflow chamber 10. This prevents foreign substances such as insects from entering. As shown in FIGS. 4 and 5, the lid 25 can be opened and closed in a vertical direction with a hinged side edge serving as a fulcrum. It is possible to do. Further, four support legs 2 are provided at the lower part of the liquid tank 2 and the overflow chamber 10.
An appropriate height from the installation surface is secured by the support legs 28. The lid 25 is provided with the closing fitting 2.
By locking a padlock or the like in the hole 30 of the ninth, useless opening and mischief can be prevented.

The rainwater purifying apparatus 1 having such a configuration is installed on the ground or the like where it is easy to perform a cleaning operation, and as shown in FIG. On the other hand, a water supply pipe 33 communicating with a water storage tank (not shown) is connected to the outlet 6 at the rear.
In addition, the drain port 13 at the bottom of the overflow chamber 10 includes:
A drain return pipe 34 communicating with the lower part of the downspout 31 is connected.

In such an installation state, when it rains,
When rainwater falling on the roof is supplied from the supply port 20 to the front separation chamber 4a through the downspout 31 and the supply pipe 32, the basket housing 21 causes relatively large impurities such as leaves of trees mixed in the rainwater. Is removed, the rainwater flows into the separation chamber 4b from the communication port 5 of the partition plate 3a. Further, the rainwater flowing into the separation chamber 4b flows into the separation chamber 4c from the communication port 5 of the partition plate 3b, and the rainwater flowing into the separation chamber 4c sequentially flows from the communication port 5 of the partition plate 3c into the separation chamber 4d. I do.
Here, the water flow regulating plates 17 are provided opposite the communication ports 5 of the partition plates 3a, 3b, 3c, respectively, so that rainwater flows between the partition plates 3a to 3c and the water flow regulating plate 17. Each of them flows upward from 16. As a result, the residence time in each of the separation chambers 4b, 4c, and 4d becomes longer, and impurities x having a small specific gravity, such as oil and soot, in most of the rainwater are floated and separated due to the difference in specific gravity. Large impurities y are separated by precipitation.

In each of the separation chambers 4b, 4c and 4d, a porous ceramics 19 having excellent adsorptivity is arranged at a position exposed to the rainwater flowing from the communication port 5 of the partition plates 3a, 3b and 3c. The porous ceramics 1
By the adsorption action of 9, oil can be removed,
In addition, rainwater can be deodorized. Further, water is activated because of its porous nature.

The rainwater from which impurities have been removed in this way flows into the inlet 24 of the trap tube 22, and clean rainwater is sent from the outlet 6 to the water storage tank by the water supply pipe 33.

On the other hand, as described above, each separation chamber 4b, 4
In c and 4d, impurities x having a low specific gravity such as oil and soot floated and separated from rainwater float on the surface of the water. By closing, the water level in each of the separation chambers 4b, 4c, and 4d rises, and rainwater overflows from the plurality of overflow holes 8 that communicate the separation chambers 4b to 4d provided in the tank wall 9c and the overflow chamber 10. At this time, the impurities x such as oil and soot floating on the water surface are discharged together with the rainwater, so that the floating separated substances in the separation chambers 4b to 4d can be easily removed. Also, overflow chamber 1
The rainwater and impurities x flowing out to 0 are drained from the bottom drain port 13 to the downspout 31 via the drain return pipe 34.

Further, when cleaning the inside of the rainwater purifying apparatus 1, since the partition plates 3a to 3c are detachably provided, when the partition plates 3a to 3c are removed, the liquid tank 2 becomes large. It is opened and the cleaning can be performed easily. Further, since the detached partition plates 3a to 3c can be cleaned and the porous ceramics 19 can be replaced outside the liquid tank 2, the work becomes easy. Further, the water in the liquid tank 2 can be easily discharged by opening the on-off valve 11 at the bottom and opening the cleaning outlet 12. Further, at this time, the bottom of the liquid tank 2 becomes a series, and impurities y having a large specific gravity such as dust and the like settled on the bottom of the liquid tank 2.
Can be discharged from the cleaning outlet 12,
Removal of the precipitate separated from the liquid tank 2 can be easily performed.

In the above embodiment, the separation chamber 4b,
Although the overflow holes 8 communicating with the overflow chamber 10 are provided in 4c and 4d, the overflow holes 8 may also be provided in the separation chamber 4a. In the above embodiment, the inside of the liquid tank 2 is divided into four separation chambers 4a, 4b, 4c and 4d, but the number of separation chambers is not limited to this.

[0026]

As described above, according to the present invention, the rainwater supplied to the front separation chamber flows into each separation chamber, and the impurities mixed in the rainwater in each separation chamber float or sediment due to the difference in specific gravity. A rainwater purifying device for separating clean rainwater from an outlet opened to a rear separation chamber, wherein the outlet is provided with an on-off valve capable of closing the outlet, and a required separation is provided. An overflow hole is provided at a height above the outlet of the chamber, so when rainfall occurs, the outlet is closed by an on-off valve, the water level is raised, and the rainwater overflows from the overflow hole to float on the water surface. It is possible to discharge impurities such as oil and soot together with rainwater, thereby easily removing the floating separated material in the separation chamber.

Further, a partition plate for partitioning the liquid tank into a plurality of separation chambers is detachably provided, and a cleaning outlet provided with an on-off valve is provided at the bottom of the liquid tank. By removing, the liquid tank can be largely opened, and cleaning becomes easy. Further, the water in the liquid tank can be easily discharged by opening the on-off valve at the bottom and opening the discharge port for cleaning. Furthermore, at this time, the bottom of the liquid tank becomes a series, and the sediment sedimented at the bottom of the liquid tank can be discharged from the cleaning outlet, so that the sediment separated from the liquid tank can be easily removed. Can be.

Further, in the required separation chamber, the porous ceramics having excellent adsorptivity is arranged at a position where the porous ceramics is exposed to the flow of rainwater flowing from the communication port of the partition plate. The deodorizing and oil removing effects of rainwater can be obtained, and the water can be activated.

Further, on the side along the front-back direction of the liquid tank,
An overflow chamber is connected through a tank wall, and an overflow hole communicating with a required separation chamber is provided in the tank wall, and a drain port is provided at the bottom of the overflow chamber, so that a pipe extending from the overflow hole is provided. Can be eliminated, and there is an excellent effect that the aesthetic appearance can be improved.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a rainwater purifying apparatus according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a partially enlarged sectional view of a lower portion of a partition plate.

FIG. 4 is a sectional view taken along the line AA in FIG.

FIG. 5 is a sectional view taken along line BB in FIG. 1;

FIG. 6 is a schematic front view showing a construction state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rainwater purifier 2 Liquid tank 3a-3c Partition plate 4a-4d Separation chamber 5 Communication port 6 Outlet 7 On-off valve 8 Overflow hole 9c Tank wall 10 Overflow chamber 11 On-off valve 12 Cleaning outlet 13 Drainage port 19 Porous ceramic x, y impurities

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C02F 1/28 C02F 1/28 Z E03B 3/03 E03B 3/03 Z

Claims (4)

[Claims] A liquid tank formed in a rectangular housing shape is partitioned by a partition plate to form a plurality of separation chambers that are continuous in the front-rear direction, and adjacent separation chambers are connected to each other by a communication port formed at a lower portion of the partition plate. The rainwater supplied to the front separation chamber flows into each separation chamber, and the impurities mixed in the rainwater are floated or settled by the specific gravity difference in each separation chamber and separated, and the rear separation is performed. A rainwater purifying device for discharging clean rainwater from an outlet opened to a chamber, wherein the outlet includes an on-off valve capable of closing the outlet, and a required separation chamber,
A rainwater purifying apparatus, wherein an overflow hole is provided at a height above the outlet. 2. The rainwater purifying apparatus according to claim 1, wherein the partition plate is detachably provided, and a cleaning outlet provided with an on-off valve is provided at the bottom of the liquid tank. 3. A porous ceramic having excellent adsorptivity is disposed in a required separation chamber at a position exposed to a flow of rainwater flowing from a communication port of a partition plate.
Or the rainwater purifying apparatus according to claim 2. 4. An overflow chamber is connected to a side of the liquid tank along the front-rear direction via a tank wall, and an overflow hole communicating with a required separation chamber is provided in the tank wall, and a bottom of the overflow chamber is provided. The rainwater purifying apparatus according to any one of claims 1 to 3, wherein a drain port is provided in the rainwater purifying apparatus.