JPH09228429A - Rainwater separated collecting device and rainwater treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device which eliminates a tramp material, such as refuse, dust and dirt or sand or the like produced during a initial rainfall time or except for the initial rainfall time in terms of a rainwater treatment technique, with higher efficiency with a simple device and hence purifies rainwater. SOLUTION: There are provided an in-flow tank 3, a flow transfer tank 7 and a drain tank 6 where a tramp material heavier than water is eliminated in the in-flow tank 3 while a tramp material lighter than water is removed in the drain tank 6. A flow transfer pipe 9 is provided in the flow transfer tank 7. This construction makes it possible to comply with any changes made about the amount of the tramp material included in the in-flowing rainwater by adjusting a reversed U-shaped portion of the flow transfer pipe 9 extremely easily and remove the tramp material and purify the rainwater.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rainwater treatment technique for utilizing rainwater as a miscellaneous water or a drinking water without naturally draining it, at the time of initial rainfall containing dust, sand, dirt, etc. The present invention relates to a rain / moisture collecting device for efficiently cleaning and collecting rainwater other than the above and a rainwater treatment device utilizing the rain / moisture collecting device.

[0002]

2. Description of the Related Art Conventionally, an apparatus of this type has been disclosed in Japanese Patent Laid-Open No. 7-13
The one described in Japanese Patent No. 2299 is known.

The device will be described below with reference to FIG. As shown in the figure, rainwater collected from roof tiles of a building by rainfall 101 enters a sand settling tank 103 through an inflow pipe 102, deposits heavy objects such as sand and dust, and enters a rainwater storage tank 104 to store rainwater. The rainwater treatment water tank 105 enters from the tank 104 and is used as miscellaneous water. Further, the rainwater of the initial rainfall containing a lot of dust, sand, dirt, etc. is prevented from flowing into the settling tank 103 by opening the initial rainfall drainage valve 106 provided in the middle of the inflow pipe 102 for a certain period of time to drain the water. It has become.

The sand settling tank 103, the rainwater storage tank 104, and the rainwater treatment water tank 105 are each partitioned by a partition weir 107 to cause heavy pollutants to settle on the bottom of each tank, and the rainwater treatment water tank supplied as miscellaneous water is as clean as possible. The converted rainwater is collected.

[0005]

In such a conventional rainwater treatment apparatus, the rainwater of the initial rainfall, which is polluted by dust, dust, oil, etc. collected on the roof and roads through the downcomer pipe, is kept constant. Even though it is time, all the water will be drained, and especially in the area where the amount of rainfall is small, all the rainwater will be drained, and the rainwater treatment device itself will not be effectively utilized.

Even in the case of continuous rain instead of initial rainfall, dust, dust, sand, etc. are always mixed in the rainwater due to changes in the amount of rain, etc., and polluted rainwater flows into the sand settling tank at the partition weir. Even though it is partitioned, it is partitioned in the same tank, so once polluted rainwater is not easily cleaned, rainwater that is not sufficiently cleaned flows from the rainwater storage tank to the rainwater treatment tank and is collected. There was a problem of being lost.

[0007] The present invention is to solve such conventional problems, and efficiently removes dirt such as dust, dust, oil and sand from dirty rainwater during initial rainfall or other than during initial rainfall. It is an object of the present invention to provide a rainwater flow collecting device that can send water to a rainwater storage tank.

[0008] Further, by utilizing the above-mentioned rain / water flow collecting device to send the purified rainwater to the rainwater storage tank, and also to purify the rainwater at the time of initial rainfall and collect water as much as possible, the effectiveness and convenience It is intended to provide a high-performance rainwater treatment device.

[0009]

In order to achieve the above object, the rain water flow collecting apparatus of the present invention has an overflow weir, an inflow tank sandwiched by partition weirs having a height lower than the overflow weir, and the partition weir. And a drainage tank is provided through the overflow weir, and an advection pipe utilizing a siphon action is provided in the advection tank.

According to the rain-moisture flow collecting apparatus of the present invention, contaminants such as sand heavier than water are settled in the inflow tank, and contaminants such as dust lighter than water are overflowed from the overflow weir into the drainage tank and drained. , The purified rainwater collected in the advection tank can be flowed to the rainwater storage tank from the advection pipe by using the siphon action.

In order to achieve the above-mentioned object, the rainwater moisture collecting apparatus of the present invention is one in which the highest position of the advection pipe utilizing the siphon action is made slightly higher than the height of the overflow weir.

According to the rain-moisture flow collecting apparatus of the present invention, the siphon action of the advection pipe is delayed as compared with the case where the rainwater overflows from the overflow weir by the above-mentioned arrangement, so that the rainwater is particularly polluted during the initial rainfall. Rainwater can be drained with a simple structure instead of a complicated device.

Further, in order to achieve the above object, the rainwater treatment apparatus of the present invention has a configuration in which the rainwater flow collecting apparatus is provided separately from the rainwater storage tank and the rainwater treatment water tank.

According to the rainwater treatment water tank of the present invention, purified rainwater can be supplied to the rainwater storage tank and the rainwater treatment water tank which are the same tank as described above.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to an overflow weir, an inflow tank sandwiched between partition weirs having a height lower than that of the overflow weir, in which rainwater flows through an inflow pipe, and the partition weir adjacent to the inflow tank. Has a drainage tank provided through the overflow weir and the overflow weir, and rainwater is collected from the inflow tank to the advection tank. When it exceeds the height, it flows over the overflow weir to the drainage tank, is flowed to the outside from the drainage port provided in this drainage tank, and the advection tank is provided with an advection pipe utilizing a siphon action and accumulated in the advection tank. It is a rainwater flow collecting device configured to flow rainwater to a rainwater storage tank.Contaminants such as sand heavier than water settle at the bottom of the inflow tank, and contaminants such as dust lighter than water are overflow weirs. From It is discharged from the discharge port together with rainwater Bafuro, the advection tank so that the rain water that has been cleaned is accumulated.

The tip of the inflow pipe in the inflow tank and the tip of the advection pipe in the advection tank are positioned lower than the height of the partition weir, and the highest position of the advection pipe is set slightly higher than the height of the overflow weir. By doing so, a rain-moisture flow collecting device configured such that the siphon action of the advection pipe works above a certain amount of rainfall and rainwater flows into the rainwater storage tank,
By doing this, the siphon action of the advection pipe will be delayed compared to when the rainwater overflows from the overflow weir, and the particularly contaminated rainwater at the time of initial rainfall can be drained with a simple structure without a complicated device. Becomes

[0017] Further, a detecting means for detecting that the rainwater has started to flow from the drainage port, and in conjunction with this detecting means, the partition valve is opened after a certain period of time so that the rainwater flows from the advection pipe to the rainwater storage tank. The rain / water flow collecting device according to claim 1 provided with a valve opening / closing means, and by doing so, the siphon action of the advection pipe is reliably delayed rather than the rainwater overflowing from the overflow weir. Particularly polluted rainwater at the time of initial rainfall can be reliably drained.

Further, the above-described rain / moisture flow collecting device is provided, and rainwater from the rain / moisture collecting device is stored in a rainwater storage tank. When the rainwater storage tank becomes full, the rainwater is treated by passing through the storage partition weir. This is a rainwater treatment device configured to collect rainwater in a water tank, and purified rainwater is supplied from the rain-moisture distilling water collection device to the rainwater storage tank and the rainwater treatment water tank.

Further, the rainwater treatment apparatus is provided with a circulation means capable of circulating the rainwater in the rainwater storage tank to the rainwater treatment water tank, and even if the rainwater in the rainwater treatment tank disappears during the dry season, the rainwater in the rainwater storage tank will disappear. Will be circulated to the rainwater treatment tank.

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

[0021]

【Example】

(Embodiment 1) As shown in FIG. 1, an inflow pipe 2 through which rainwater due to rainfall is collected and flows in is inserted into a main body container 1 up to an inflow tank 3. The inflow tank 3 is sandwiched between an overflow weir 4 and a partition weir 5 having a height lower than that of the overflow weir 4, and a drainage tank 6 is provided via the overflow weir 4 and an advection tank 7 is provided via the partition weir 5. There is. A drainage port 8 is provided at the bottom of the drainage tank 6, and an advection pipe 9 is inserted into the advection tank 7. The advection tube 9 has an inverted U shape, and a partition valve 10 is provided outside the main body container.

In the above structure, rainwater from the rainfall 11 is collected by a roof gutter or the like (may be further collected in the water collecting tank 12) and flows into the inflow tank through the inflow pipe. Although there is one inflow pipe in FIG. 1, there may be a plurality of inflow pipes. Rainwater entering the inflow tank gradually increases and flows over the partition weir into the advection tank. Rainwater in the advection tank gradually increases, and eventually when the entire water diversion tank 13 becomes full, rainwater overflows from the overflow weir, flows into the drain tank, and is discharged to the outside from the drain port provided at the bottom of the drain tank.

On the other hand, the rainwater collected in the advection tank is made to flow to the outside of the rainwater storage tank 14 etc. by the siphon action of the advection tube which has an inverted U shape by opening the partition valve provided in the advection tube.

Here, in the inflow tank, contaminants such as sand heavier than water settled on the bottom, and suspended matter such as dust lighter than water became full unless the partition valve of the advection pipe was opened to start flowing. The rainwater that floats on the surface of the water tank and eventually overflows from the overflow weir is discharged from the drainage port of the drainage tank to the outside. And purified rainwater is always stored in the advection tank. The purified rainwater will be supplied from the advection pipe to the outside such as the rainwater storage tank using the siphon action by opening the partition valve.

(Embodiment 2) Next, a description will be given with reference to FIG.

Here, the same parts as those in the first embodiment will be omitted and only the points will be described. As shown in the figure, the inverted U-shaped portion 15 of the advection tube 9 can be freely adjusted in height by loosening the set screw 16. Therefore, it is assumed that the position of the highest portion of the inverted U-shaped portion 15 is adjusted to a position slightly higher than the height of the overflow weir 4. In the above configuration, it is assumed that the water tank is filled with rainwater and begins to overflow from the overflow weir. When the amount of rainfall is small, the amount of overflow is also small, and the thickness 17 (height) from the overflow weir of the rainwater that overflows is also small, but when the amount of rainfall is large, the aforementioned thickness increases and the reverse U-shaped portion of the advection pipe is the highest. The water level in the diversion tank becomes higher. Here, when the water surface of the water diversion tank becomes higher than the inverted U-shape of the advection pipe, siphon action occurs and rainwater flows through the advection pipe.

In the first embodiment described above, the partition valve of the advection pipe was opened to allow rainwater to flow, but this method does not require the operation of opening the partition valve or the like, and does not require any other component for flowing rainwater. Rainwater can be automatically drained with a very simple structure.

When it is estimated that there are many contaminants such as sand, dust, and dust at the time of initial rainfall or at a water collecting site such as a roof, increase the height of the inverted U-shape of the advection pipe as much as possible. It is also extremely effective when discharging contaminants.

In this embodiment, the height of the inverted U-shape of the advection pipe can be freely adjusted, but a groove or the like is provided at the upper part of the overflow weir to adjust the amount of rainwater overflowing from the overflow weir. The method of adjusting the width of the groove or the like is also effective.

Further, the height of the inverted U-shaped portion is adjusted by using a set screw, but the set U may be inserted and inserted without using the set screw. It goes without saying that if it is freely adjustable, it is just as effective.

(Third Embodiment) Next, a description will be given with reference to FIG.

Here, the same parts as in the first embodiment will be omitted and only the points will be described. As shown in the figure, the drain 18 has a detector 18 for detecting the outflow of rainwater.
Is linked with the partition valve switch 19, and a controller 20 for controlling them is separately provided.

In the above structure, the detector detects when rainwater begins to flow from the drain port together with contaminants such as dust and dust,
The signal is sent to the controller, the signal of the controller is sent to the partition valve switch, and the partition valve is opened to allow rainwater to flow from the advection pipe to the outside.

This method is effective for surely detecting rainwater and automatically and reliably opening the partition valve to flow rainwater from the advection pipe.

Here, the detector may detect only rainwater, or may detect dirt such as dust and dust.
Further, the controller may be a timer control, or may be a microcomputer control for determining and controlling a dirt signal from the detector.

Further, the controller uses only the signal from the detector of the drain port, but receives the signal from the water level detector of the rainwater storage tank supplied with rainwater flowing from the advection pipe, and if the rainwater storage tank is full, it is partitioned. The control may be such that the valve is closed.

(Embodiment 4) Next, a description will be given with reference to FIG.

As shown in the figure, the rain / water flow collecting device 2 described above is used.
1 and the advection pipe 9 from this rainwater flow collecting device 21 is inserted into the rainwater storage tank 22. Next to the rainwater storage tank 22, a rainwater treatment water tank 24 is provided via a storage partition weir 23, and the rainwater treatment water tank 24 is provided with a miscellaneous water supply pump 25 and a circulation pump 26.

In the above structure, the rainwater purified from the rainwater flow collecting device flows into the rainwater storage tank through the advection pipe. When the amount of rainwater in the rainwater storage tank increases, it will flow over the storage partition weir and be stored in the rainwater treatment water tank. Rainwater stored in the rainwater treatment tank is pumped and used as miscellaneous water. When rainwater runs out in the rainwater treatment tank during a dry season, the rainwater in the rainwater storage tank is circulated and supplied to the rainwater treatment tank by a circulation pump.

In this embodiment, by utilizing the rain-water flow collecting device, the facility for cleaning the rainwater such as a sand basin becomes unnecessary, and the capacity of the rainwater to be stored can be greatly increased if the space is provided. Further, even if the installation space for the rainwater treatment water tank is limited, the need for purification equipment such as a sand settling tank is not necessary, which improves design compatibility.

When rainwater is in short supply, such as during the dry season, by circulating the rainwater from the rainwater storage tank to the rainwater treatment water tank using a circulation pump, the rainwater in the entire water tank can be utilized and there is a margin for utilization and efficiency. Can be utilized effectively.

[0042]

As is clear from the above embodiments, according to the present invention, it is possible to provide a rain-moisture distilling and collecting device which can purify rainwater with a simple structure.

Rainwater that can be discharged together with the rainwater by adjusting contaminants such as dust, dust, and sand that change depending on the initial rainfall, the amount of rainfall, and the roof or gutter where the water is collected. A branch water collection device can be provided.

Further, the installation space may be reduced by utilizing the rain / moisture flow collecting device, and the rainwater in both the rainwater storage tank and the rainwater treatment water tank partitioned by the storage partition weir can be effectively utilized. It is possible to provide a highly convenient rainwater treatment device.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a second embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a configuration of a third embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a configuration of a fourth embodiment of the present invention.

FIG. 5 is an explanatory diagram of a configuration of a conventional rainwater treatment device.

[Explanation of symbols]

 2 inflow pipe 3 inflow tank 4 overflow weir 5 partition weir 6 drainage tank 7 advection tank 8 drainage port 9 advection pipe 14 rainwater storage tank 15 reverse U-shaped part 16 set screw 17 thickness 18 detector 19 partition valve switch 20 controller 21 Rainwater flow collecting device 22 Rainwater storage tank 23 Storage partition weir 24 Rainwater treatment water tank 25 Miscellaneous water supply pump 26 Circulation pump

Claims (5)

[Claims] 1. An inflow tank sandwiched between an overflow weir and a partition weir having a height lower than that of the overflow weir, through which rainwater flows through an inflow pipe, and advection provided next to the inflow tank via the partition weir. It has a tank and a drainage tank provided via the overflow weir, and rainwater is accumulated from the inflow tank to the advection tank, and both tanks become full and accumulate in the water diversion tank and overflow when the height exceeds the overflow weir. It flows over the weir to the drainage tank, flows to the outside from the drainage port provided in the drainage tank, and the advection tank is provided with an advection pipe utilizing a siphon action, and rainwater collected in the advection tank is stored in the rainwater storage tank. A rain / water flow collecting device configured to flow to 2. The tip of the inflow pipe in the inflow tank and the tip of the advection pipe in the advection tank are positioned lower than the height of the partition weir, and the highest position of the advection pipe is set slightly higher than the height of the overflow weir. The rainwater flow collecting device according to claim 1, wherein the rainwater flows into the rainwater storage tank by the siphon action of the advection pipe working above a certain amount of rainfall. 3. A detection means for detecting that rainwater has started to flow from a drainage port, and in conjunction with this detection means, a partition valve is opened after a predetermined time so that rainwater flows from the advection pipe to the rainwater storage tank. The rain / water flow collecting device according to claim 1, further comprising a valve opening / closing means. 4. A rain / water flow collecting device according to claim 1, 2 or 3, wherein rain water from this rain / water collecting device is stored in a rain water storage tank, and when the rain water storage tank is full, a storage partition A rainwater treatment device configured to collect rainwater in a rainwater treatment tank over a weir. 5. The rainwater treatment apparatus according to claim 4, further comprising a circulation means capable of circulating the rainwater in the rainwater storage tank to the rainwater treatment water tank.