JP3720971B2 - Rainwater purification downspout - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rainwater purification vertical gutter capable of capturing and filtering dust, sand, and other contaminants mixed in rainwater when collecting rainwater and guiding it to a water tank or the like.
[0002]
[Prior art]
In recent years, rainwater collected at the eaves of a building is led to a water tank for storage, and used as water for washing toilets and washing cars, for watering garden trees and flower beds, or for emergency disasters. It is used as irrigation water.
[0003]
[Problems to be solved by the invention]
However, since the rainwater collected by the eaves contains foreign substances such as dust and sand, it cannot be used unless the rainwater is filtered. In addition, when rainwater is stored in a water tank for a long period of time and used as water for emergency disasters, there is a safety and health problem that algae and germs grow.
[0004]
The present invention solves such a problem, and when guiding rainwater collected by eaves to a water tank or the like, it can capture and filter dust, sand, and other contaminants, and sterilize rainwater as necessary. It is an object of the present invention to provide a rainwater purifier that can prevent the growth of algae and various bacteria over a long period of time.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the rainwater purification vertical gutter according to the present invention has an inlet at the upper end of the vertical gutter, an outlet at the lower part, and a filtration chamber between the inlet and the outlet. A cylindrical filter having an infinite number of fine holes of 50 to 300 μm is sinter-molded in a cylindrical wall by sinter-molding ultrahigh molecular weight polyethylene, and the rainwater flowing in from the inlet is removed from the cylindrical wall of the cylindrical filter. The rainwater filtered by passing from the inner circumference side to the outer circumference side or from the outer circumference side to the inner circumference side is discharged from the outflow port, and the foreign matter captured and dropped by the cylindrical filter is discharged from the drain hole. And
[0006]
Since the present invention is characterized by incorporating a rainwater purification device into the vertical gutter itself, it is possible to efficiently produce clean rainwater by ensuring a sufficient head and length without requiring a place for filtration and sterilization. This can be recovered as a clean water, and can also be stored in a water tank to prevent the growth of algae and germs when used as an emergency water.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0008]
FIG. 1 is a schematic cross-sectional view of a rainwater purification vertical shaft showing an embodiment of the present invention, FIG. 2 is a schematic cross-sectional view of a rainwater purification vertical shaft showing another embodiment of the present invention, and FIG. It is a schematic sectional drawing.
[0009]
As shown in FIGS. 1 to 3, the present invention is a rainwater purification downspout characterized by incorporating a rainwater purification device 3 having a function of filtering rainwater 2 into a downspout 1.
[0010]
First, the rainwater purification vertical shaft shown in FIG. 1 will be described.
[0011]
The vertical gutter 1 only needs to have a shape and a sufficient diameter according to the size and structure of the rainwater purification device 3 to be incorporated, and an inflow port 11 to which a normal vertical gutter 10 can be connected is provided at the upper end. The rainwater 2 collected through the eaves and the vertical shaft 10 flows from the inflow port 11.
[0012]
Hereinafter, the inflow port 11 is integrated and continuous with the rainwater purification device 3 incorporated in the vertical gutter 1.
[0013]
The rainwater purification apparatus 3 includes an initial rainwater separation unit 30 below the inflow port 11.
The initial rainwater separation section 30 surrounds a shoulder wall 31 that extends and continues below the inlet 11, an overflow cylinder 32 that is arranged to rise with a gap 12 immediately below the inlet 11, and the overflow cylinder 32. It has a front chamber 33 formed and an overflow port 34 below the front chamber 33.
[0014]
For this reason, the rainwater 2 having a low flow rate at the beginning of the descent flows into the front chamber 33 through the inner surface of the shoulder wall 31 from the wall surface of the inlet 11 to the gap 12 as indicated by an arrow 21 due to surface tension, and is discharged from the overflow port 34. When the amount of rain increases, the rainwater 2 that has won the surface tension falls vertically and is received by the overflow cylinder 32 and flows into the next step. In this way, it is possible to separate the initial rainwater containing a particularly large amount of dirt accumulated on the roof.
[0015]
In the lower part of the front chamber 33, a storage chamber 35, a filtration chamber 36, and a lower chamber 37 are defined by an upper partition plate 351 and a lower partition plate 361, respectively, and an outlet 362 is formed in the lower portion of the filtration chamber 36. The lower chamber 37 is provided with a drain outlet 372.
[0016]
A plurality of cylindrical filters 4 are detachably passed between the upper partition plate 351 and the lower partition plate 361 constituting the filtration chamber 36 in a vertical state. The upper and lower ends of each cylindrical filter 4 are open and communicate with the storage chamber 35 and the lower chamber 37, respectively.
[0017]
For example, the cylindrical filter 4 may be formed by sintering and molding an ultra-high molecular weight polyethylene having a particle size of about 5 to 1000 μm into a cylindrical shape such as a cylindrical shape. The zeolite solid particles in which metal ions such as silver and copper are supported may be added to the ultrahigh molecular weight polyethylene.
[0018]
An infinite number of fine pores of about 50 to 300 μm are formed in the cylindrical wall of the cylindrical filter 4, and these fine pores exhibit a filtration function. Metal ions such as silver and copper are applied to the zeolite solid particles. When the supported material is added, the zeolite solid particles are exposed on the inner and outer peripheral surfaces of the cylindrical wall and innumerable micropores, and also have a sterilizing function.
[0019]
Usually, as the size of the cylindrical filter 4, one having an outer diameter of 20 to 100 mm and a length of 300 to 5,000 mm can be suitably used.
[0020]
In the rainwater purification apparatus 3 according to the present embodiment, the rainwater 2 that has fallen from the inlet 11 and passed through the overflow cylinder 32 flows into the storage chamber 35 and further flows into the lower chamber 37 through each cylindrical filter 4. To do.
[0021]
When rainwater 2 accumulates in the lower chamber 37 and the water level rises in the tubular filter 4, the rainwater 2 passes through the tubular wall of each tubular filter 4 so as to ooze from the inner peripheral side to the outer peripheral side, and is filtered outside. It flows into the chamber 36.
[0022]
At this time, dust and sand mixed in the rainwater 2 are captured by the countless fine holes of the cylindrical filter 4, and the rainwater 2 comes into contact with the zeolite solid particles exposed from the countless fine holes. Therefore, algae and germs do not propagate even if they are stored in the water tank for a long time.
[0023]
The rainwater 2 that has flowed into the filtration chamber 36 is guided from the outlet 362 to a water tank or the like and can be used for various purposes as clean water.
[0024]
On the other hand, dust, sand, and other contaminants trapped by the respective cylindrical filters 4 and collected on the inner peripheral side and dropped to the lower chamber 37 and accumulated on the bottom are taken out from the drain outlet 372 and discharged at any time.
[0025]
When excess rainwater 2 flows in due to heavy rain or the like, it overflows from the overflow cylinder 32 and flows into the front chamber 33 and is discharged from the overflow port 34.
[0026]
In this water treatment process, when the tubular filter 4 is clogged, the tubular filter 4 is replaced with a new one or washed and reused. When purifying the rainwater collected at the eaves, it is recommended that the flow of the purified water be replaced with a new one or cleaned after half a year.
[0027]
Next, the rainwater purification vertical shaft shown in FIGS. 2 and 3 will be described.
[0028]
The vertical gutter 1 is provided side by side with the auxiliary vertical gutter 100 that also serves as a bypass flow path, and an inflow port 11 that can be connected to a drop port 101 and the like from the eaves is provided at the upper end. The rainwater 2 collected via the above flows into the inflow port 11. Here, the auxiliary vertical gutter 100 is connected to the drainage port 102.
[0029]
In this example, the downpipe 1 is almost the rainwater purification device 3 itself, the lower part of the inflow port 11 forms a long filtration chamber 302 as it is, and the overflow port 303 is connected to the upper downpipe 100 at the upper end of the filtration chamber 302. It is provided to do.
[0030]
The lower end of the filtration chamber 302 is closed by a partition plate 304, and a drain hole 306 communicating with the large-diameter portion 305 and the auxiliary vertical rod 100 is formed above the partition plate 304. The drain hole 306 has a flow rate. Those equipped with a regulating valve are preferred.
A lower chamber 307 is formed under the partition plate 304, and an outlet 308 is provided in the lower chamber 307.
[0031]
The rainwater purification apparatus 3 in this example uses, as a main part, a cylindrical main body 301 in which a cylindrical filter 4 having a star-shaped cross section is inserted over the entire length as shown in FIG.
[0032]
A cylindrical filter 4 having a filtering function can be used due to the structure of the porous cylindrical wall, and a multi-ridge star shape circumscribing the inner diameter of the cylindrical main body 301 is preferable because a stable insertion state is obtained. As shown in Example 1, it is more preferable to add solid zeolite particles carrying metal ions such as silver and copper so as to have a bactericidal effect.
[0033]
The upper end portion of each cylindrical filter 4 is closed with a top plate or the like, and the lower end portion of each cylindrical filter 4 is connected to the upper surface of the partition plate 304 and opens to communicate with the lower chamber 307.
[0034]
In the rainwater purification apparatus 3 in this embodiment, the rainwater 2 that has dropped from the inlet 11 flows into the gap between the outer peripheral side of the tubular filter 4 in the filtration chamber 302 and the tubular main body 301, passes through the large-diameter portion 305, and drains. It flows out from the punched hole 306 to the sub-longitudinal rod 100.
[0035]
When the amount of rain increases and exceeds the amount of outflow from the drain hole 306, the water level in the filtration chamber 302 rises, and the rainwater 2 passes from the outer peripheral side to the inner peripheral side of the cylindrical filter 4 and passes through the lower chamber. It flows into 307, is led from the outlet 308 to a water tank or the like, and can be used for various purposes as clean water.
[0036]
Innumerable micropores of the cylindrical filter 4 capture dust, sand, and other contaminants mixed in the rainwater 2, and if necessary, the rainwater 2 is exposed to infinite number of micropores in the zeolite solid particles. If it can be sterilized in contact with the algae, even if it is stored in the water tank for a long period of time, algae and germs will not propagate.
[0037]
At that time, impurities such as dust and sand are trapped and remain on the outer peripheral side of the cylindrical filter 4 and fall and accumulate on the upper surface of the partition plate 304.
[0038]
The dust and sand can be taken out at any time by greatly adjusting the flow rate of the drain hole 306 provided on the upper side of the partition plate 304, and can be discharged from the discharge port 102 through the auxiliary vertical rod 100.
[0039]
When excessive rainwater 2 flows in due to heavy rain or the like, the water level rises and is discharged from the overflow port 303 through the auxiliary vertical gutter 100.
[0040]
【The invention's effect】
As described in detail above, the present invention is a rainwater purification vertical shaft incorporating a rainwater purification device having a function of filtering rainwater into the vertical shaft, and therefore does not require a special place for filtration. In addition, by ensuring a sufficient head and length, it is possible to efficiently collect clean rainwater and use it as clean water. Even when it is stored in a period tank and used as water for emergency disasters, it is possible to suppress the growth of algae and germs.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of a rainwater purification vertical shaft showing one embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of a rainwater purification vertical shaft showing another embodiment of the present invention.
3 is a schematic cross-sectional view taken along the line III-III in FIG.
[Explanation of symbols]
1 Shaft 2 Rainwater 3 Rainwater purification device

Claims (1)

An inflow port is provided at the upper end of the vertical shaft, an outflow port is provided at the lower portion, a filtration chamber is provided between the inflow port and the outflow port, and ultrahigh molecular weight polyethylene is sintered and molded into the filtration wall by 50 to 300 μm on the cylindrical wall. A cylindrical filter having innumerable fine holes is detachably passed in a vertical state, and rainwater flowing in from the inlet is passed from the inner peripheral side to the outer peripheral side of the cylindrical wall of the cylindrical filter, or from the outer peripheral side to the inner peripheral side. The rainwater purification vertical gutter which discharges the rainwater filtered by letting it flow out from an outlet, and discharges the foreign matter which was captured by the cylindrical filter and dropped .

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