JPH1066811A - Rainwater utilization equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To extend the life of a filtering member 55 of a rainwater utilization device. SOLUTION: When rainwater passes through filtering members 56, 57, 58, the sludge contained in the rainwater is pushed into the filtering members 56, 57, 58 when the sludge is included in the filtering members 56, 57, 58. A large amount was not left in 57 and 58.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rainwater utilization device for effectively utilizing rainwater.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Registration No. 30
The apparatus disclosed in Japanese Patent No. 17741 (issued on Aug. 23, 1995) includes a sedimentation tank for sedimenting contaminants in collected rainwater and a filtration tank containing a filtration member.
Then, the rainwater filtered by passing through the filtering member is stored in the water quality improvement tank and used for use. Thus, the upper side of the sedimentation tank and the upper side of the filtration tank communicate with each other. When rainwater in the sedimentation tank overflows, the rainwater flows into the filtration tank and passes through the filtration member from top to bottom. It has become.

[0003]

However, since the rainwater flowing into the sedimentation tank before the overflowed rainwater remains in the sedimentation tank, the contaminants contained in the overflowed rainwater can be settled down without any problem. Since it flows into the filtration tank, the purpose of providing the settling tank is discarded. Further, when such rainwater passes through the filtration member, almost all of the contaminants that have not settled in the sedimentation tank enter the filtration member due to the water pressure, and remain in the filtration member. There was a problem that clogging was caused.

[0004] Therefore, an object of the present invention is to provide a rainwater utilization device free of such a problem.

[0005]

Means for Solving the Problems In order to solve the above technical problem, the technical means taken in claim 1 of the present invention is a tank main body: an inflow port formed on the ceiling side of the tank main body: A sedimentation chamber defined on one side of the tank body for sedimentation of contaminants in rainwater collected through an inflow port: a filtering member is accommodated, and the rainwater collected in the sedimentation chamber is pushed up. A filtration chamber disposed in the tank body to pass through the filtration member in such a manner: provided in the tank body so as to be adjacent to the filtration chamber, where rainwater filtered by the filtration member falls. A water storage chamber for receiving and storing rainwater; and a rainwater utilization device formed in the tank body and having an outlet for taking out rainwater stored in the water storage chamber.

[0006]

The operation of the above technical means is as follows. That is, even if rainwater passing through the filtration member contains provisional contaminants, it is not pushed into the filtration member even if water pressure acts due to its own weight.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

As shown schematically in FIG. 1, the rainwater utilization device 10 includes a tank body 20, and an inflow port 22 projecting upward is formed on the left side of a ceiling 21 of the tank body 20. I have. Inflow port 22 of tank body 20
Is in close proximity to and confronts a hanging part 93 a of a rain gutter 93 that collects rain water that has fallen on the roof surface 91 of the house 90, and such rain water flows into the tank body 20 through the inflow port 22. The water is pumped out from an outlet 23 formed on the lower right side of the tank main body 20 by a pump 81 disposed on a pipe 80 and subjected to the processing described in detail later, and the toilet bowl 82 and the bathtub 83
It is intended to be used for washing. If there is a height difference in the pipe 80 and the static pressure due to the height difference is sufficient, the forced water distribution by the pump 81 may be omitted.

As shown in detail in FIG. 2, the front end of the inlet 22 is formed so as to be inclined leftward (outward of the tank body 20). The opening at the tip end of the inflow port 22 is sealed with a mesh 24.
Thus, even if leaves and other large garbage fly over the opening at the tip of the inflow port 22, these garbage are prevented from entering the tank body 20 through the inflow port 22.
It falls from the tank main body 20 downward.

In the tank body 20, a first settling chamber 30, a second settling chamber 40, and a second settling chamber 30 are set in order from the left side to the right side to settle rainwater contaminants (sludge) collected through the inlet 22. Filtration chamber 50 and filtration chamber 5 for filtering rainwater from which sludge has been removed in first settling chamber 30 and second settling chamber 40
A water storage chamber 70 for storing rainwater filtered at 0 is defined.

The first settling chamber 30 communicates with the inlet 22 and receives rainwater that has passed through the mesh 23 of the inlet 22. Dust deposited on the roof 91 is mixed into the rainwater as sludge, and the sludge is deposited in the first settling chamber 30.
Is deposited on the bottom 31 of the. The accumulated sludge is appropriately
The valve 84 provided at the discharge port 32 is opened, and is discharged to the drain 86 through the pipe 85. Thus, the first settling chamber 3
Since the bottom 31 of 0 is inclined leftward (outward of the tank body 20), such sludge can be easily discharged. It should be noted that the left side wall of the tank body 20 is transparent to observe the state of sludge accumulation, and that the sludge clarity is determined from the clarity of the rainwater obtained by measuring the electrical conductivity of the rainwater in the first settling chamber 30. The timing of opening the valve 33 can be determined by estimating the accumulation amount.

A second settling chamber 40 is provided adjacent to the first settling chamber 30. The lower left half of the second settling chamber 40 is located below the bottom 31 of the first settling chamber 30, and between the upper part of the first settling chamber 30 and the upper part of the second settling chamber 40. Is provided with a purification chamber 60. That is,
As shown in detail in FIGS. 3 and 4, the purification chamber 60 has a left (right) side plate 25 a (2) of a rectangular upper frame portion 25 whose cross section in a plane hanging from the ceiling 21 of the tank body 20 is rectangular.
5 a) and the left (right) side plate 42 a (42) of the lower frame portion 42 having a rectangular cross section when projected from the inner ceiling 41 of the second settling chamber 40
a) is connected by the mesh plate 43 (43), whereby the purification chamber 60 having the opening 61 is formed.
Then, the filtering unit 4 is inserted into the purification chamber 60 through the opening 61.
5 is inserted and fixed, and the filtering member 46 of the filtering unit 45 is
Accordingly, rainwater that overflows the first settling chamber 30 and moves to the second settling chamber 40 is further filtered, and sludge is removed. Thus, the rainwater flowing into the second settling chamber 40 is considerably clear. As shown in FIG. 4, the front plate 25b (the rear plate 25) of the upper frame portion 25 is provided.
The space between c) and the front plate (rear plate) (not shown) of the lower frame portion 42 is closed by a metal plate 26 (26) so that rainwater does not pass through.

[0013] As shown in FIG.
The upper part of the filter member 46 is fitted with a metal cap 47 having a handle 47a, so that the filter unit 45 is detachable from the purification chamber 60. Thus, a sealing member 48 is provided on the outer peripheral portion of the cap 47.
Is mounted to ensure liquid tightness between the filtration unit 45 and the purification chamber 60.

The sludge contained in the rainwater filtered by the filtration unit 45 is deposited on the bottom 44 of the second settling chamber 40, and this sludge is opened by a valve 87 provided at the second discharge port 49 as appropriate. Thus, the water is discharged to the drain 86 via the pipe 85. Since the bottom 31 of the first settling chamber 30 is inclined leftward (outward of the tank body 20), such sludge can be easily discharged. It should be noted that the left side wall of the tank body 20 is transparent to observe the state of accumulation of sludge, and the clarity of the sludge is determined from the clarity of the rainwater obtained by measuring the electrical conductivity of the rainwater in the second settling chamber 40. The timing of opening the valve 87 can be determined by estimating the accumulation amount.

The left side plate 51a of the housing 51 forming the filtration chamber 50 connects the front side plate and the rear side plate of the tank body 20. The upper part of the left side plate 51a is connected to the ceiling of the tank body, but the lower part is formed with a hole 87 and is separated from the bottom part 44 of the second settling chamber 40. The lower part of the right side plate 51 b of the housing 51 is connected to the uppermost right side of the bottom 44 of the second settling chamber 40. A locking portion 52 is formed slightly above the center of the inside of the housing 51 so that the lower portion of the filtration unit 55 housed in the filtration chamber 50 is locked. In addition, the upper side of the filtration unit 55, when in the above-described storage state, a pair of flaps 53
To prevent and lock. Thus, as shown in detail in FIG. 4, after the three types of filtration members 56, 57, 58 are superimposed and arranged, substantially the entirety of the filtration unit 26 is made of metal so that only the upper and lower central portions are exposed. Frame 59. The filtration unit 55 is replaceable through an opening 54 of the housing 51 provided with the flapper 53 and an opening 21 a of the ceiling 21 of the tank body 20 which is opened and closed by the lid 25. When the amount of rainwater stored in the second settling chamber 40 increases, the rainwater generally flows into the second settling chamber 40 in the order of the holes 51c and the bottom 44 and the left side plate 51a.
Flows into the housing 51 through the gap between the filter 51 and the filter unit 55 while being pushed up in the housing 51, and flows into the water storage chamber 70. Rainwater is filtered and purified when passing through the filtration unit 55. Incidentally, even if the sludge is excessively deposited on the bottom 41 of the second settling chamber 40 and the gap between the bottom 44 and the left side plate 51a is closed, the rainwater flows through the hole 5.
Pass only 1c.

The rainwater flowing into the water storage chamber 70 is
It will be stored in 0. Thus, the anti-rotation float 100 is floating. Anti-corruption float 100
Is integrally provided with a floating body 101 for following the fluctuation of the water level of the rainwater and an antibacterial material 103 drooping and sinking into the rainwater from the floating body 101. With this antibacterial material 103, decay or corrosion of rainwater in the water storage chamber 70 is prevented. Also,
The sludge contained in the rainwater flowing into the water storage chamber 70 is deposited on the bottom 71 of the water storage chamber 70. When the valve 72 is opened, the sludge is discharged through the opening 23 and the pipe 74 through the discharge groove 86.
Is discharged. This discharge is performed when the bottom 71 is
Because it is gradually inclined outward, it is very smooth. As the sludge accumulates, the rainwater in the water storage chamber 70 becomes clearer, and as described above, the rainwater is pumped by the pump 81 to the pipe 80 via the outlet 23 and the toilet 82 or the bathtub 83. For cleaning. When the water level of the rainwater in the water storage chamber 70 is low, the float valve 77 is opened, and tap water is supplied through the pipe 78 and the opening 79. When the water level of the rainwater in the water storage chamber 70 is high, the rainwater is discharged to the discharge groove 86 through the opening 76 near the ceiling 21.

As shown in FIG. 8, the mesh plate 43 may be omitted, and the metal frame 59 may be omitted.

FIGS. 9 to 11 show modifications of the embodiment. In this modified embodiment, a valve 170 that opens and supplies tap water into the water storage chamber 70 when the level of rainwater in the water storage chamber 70 is low is a pipe 78 that extends to the ceiling of the tank body 20. Is provided in the opening 79. And valve 1
70 is connected to the floating body 101 of the rot prevention float 100 by a wire 180. When the vertical position of the floating body 101 falls below a predetermined value, that is, when the water level falls below a predetermined value, it is lowered by the wire 180. Open. By adopting such a configuration, when compared with the above-described embodiment, the ball floating in the water can be eliminated, and the interference / collision between the ball and the floating body 101 of the anti-corruption float 100 can be eliminated. .

Further, the floating body 10 of the rot
An oil absorbing material 109 is provided around 1 and on the outer side of the upper surface so that only the oil having a relatively small specific gravity floating in rainwater is absorbed. Thus, the oil film disappears from the rainwater supplied to the user, and the light reflected from the oil film does not cause discomfort to the user.

Further, the bottom 31 (4) of the settling chamber 30 (40)
At a position close to 4), three plates 131, 132, 1
There is provided a convection preventing means 130 (140) composed of 33 (141, 142, 143) at intervals. In the convection preventing means 130 (140), the holes formed in the adjacent plates do not sign each other,
At the time of heavy rain, the rainwater suddenly flows into the settling chamber 30 (40), so that the bottom 31 (44) of the settling chamber 30 (40).
Even if the sludge that has accumulated in the slab rises, it is possible to prevent the sloshing from becoming a convection over the entire settling chamber.
The convection preventing means 130 (140) may be formed in a honeycomb shape. In this case, if the thickness of the honeycomb structure is made larger than a predetermined value, the speed of the passing rainwater is suppressed, and the rising of the sludge deposited on the bottom 31 (44) of the settling chamber 30 (40) can be suppressed with a considerable probability. .

[0021]

【The invention's effect】

(1) Effect of the first aspect of the present invention: Even if rainwater passing through the filtration member contains provisional pollutants, due to its own weight, the sludge will not be pushed into the filtration member even if water pressure acts. Absent. Therefore, the amount of sludge remaining in the filtering member is small, and the life of the filtering member is extended.

(2) Effect of the second aspect of the invention: Falling leaves and other foreign substances can be prevented from entering the tank main body from the inflow port or accumulating on the tank main body.

(3) Effect of the third aspect of the invention: The rainwater utilization device can be used semi-permanently only by replacing the filtration member.

(4) Effect of the invention of claim 4: Sludge deposited on the bottom of each chamber is discharged along the slope, so that sludge discharge is facilitated.

(5) Effect of the invention of claim 5: The rainwater utilization device can be used at any time.

(6) Effect of the invention of claim 6: Corrosion of rainwater in the water storage chamber can be prevented and rainwater can be stored for a long time.

(7) Advantage of the invention of claim 7: Even if an oil component having a small specific gravity floats in rainwater, the oil component is absorbed by the oil absorbing material, and the oil film is eliminated from the water supplied at the place of use. The light does not cause any discomfort to the user.

(8) Advantage of the invention of claim 8: Compared with the case where the valve is a ball tap valve, the ball floating in the water can be eliminated, and interference and collision between the antibacterial means and the ball are eliminated. .

(9) Effect of the invention of claim 9: In the event of heavy rain, as the rainwater suddenly flows into the settling chamber, sludge deposited on the bottom of the settling chamber rises over the entire settling chamber. It is possible to prevent convection over the whole area.

[Brief description of the drawings]

FIG. 1 is a diagram showing an appearance of a rainwater utilization device according to the present invention in an installed state.

FIG. 2 is a longitudinal sectional view of the rainwater utilization device of the present invention.

FIG. 3 is a cross-sectional view of the rainwater utilization device of the present invention.

FIG. 4 is a sectional view showing the vicinity of a sedimentation chamber and a filtration chamber of the rainwater utilization device of the present invention.

FIG. 5 is a sectional view of a single unit of the filtration unit.

FIG. 6 is a plan view of a single unit of another filtration unit.

FIG. 7 is a sectional view of a single unit of the filtration unit shown in FIG. 6;

FIG. 8 is a sectional view of another example near the settling chamber and the filtration chamber of the rainwater utilization device of the present invention.

FIG. 9 is a vertical sectional view of a rainwater utilization device according to another embodiment of the present invention.

FIG. 10 is a side view of an antibacterial means in a rainwater utilization device according to another embodiment of the present invention.

FIG. 11 is a cross-sectional view of an antibacterial means in a rainwater utilization device according to another embodiment of the present invention.

[Explanation of symbols]

 20: Tank body 22: Inlet 23: Mesh 40: Sedimentation chamber 44: Bottom of sedimentation chamber 56: Filter member 57: Filter member 58: Filter member 70: Water storage room 71: Bottom of water storage room 100: Antibacterial means 109: Oil Absorbent 130: Convection prevention means 140: Convection prevention means

Claims (9)

[Claims] 1. A tank body: an inlet formed on a ceiling side of the tank body: formed on one side of the tank body to settle pollutants in rainwater collected through the inlet. Settling chamber: a filtering member is accommodated, and a filtering chamber arranged in the tank body to pass through the filtering member in such a manner that rainwater collected in the settling chamber is pushed up: adjacent to the filtering chamber A water storage chamber provided in the tank body for receiving rainwater filtered by the filter member to fall and storing the rainwater; and a water flow formed in the tank body and taken out of the rainwater stored in the water storage chamber. Rainwater utilization device with outlet. 2. The rainwater utilization device according to claim 1, wherein a tip portion of the inflow port is inclined so as to face the outside of the tank body and is sealed with a mesh. 3. The rainwater utilization device according to claim 1, wherein said filter member is detachable from outside of said tank body. 4. The rainwater utilization device according to claim 1, wherein each of the bottoms of the settling chamber and the filtration chamber is inclined in a discharge direction. 5. The rainwater utilization device according to claim 1, wherein a valve is provided for supplying tap water to the water storage chamber when the water level of the rainwater in the water storage chamber falls below a predetermined value. 6. The rainwater utilization device according to claim 1, wherein antibacterial means is floated in the rainwater in the water storage chamber. 7. The rainwater utilization device according to claim 6, wherein an oil absorbing material is provided above the waterline of the antibacterial means. 8. A valve for supplying tap water to the water storage chamber, and the valve is linked with antibacterial means floating on the rainwater in the water storage chamber so that the water level of the rainwater in the water storage chamber becomes equal to or lower than a predetermined value. 2. The valve according to claim 1, wherein the valve is opened when the valve is opened.
The rainwater utilization device as described. 9. The rainwater utilization device according to claim 1, wherein a convection preventing means is provided on a bottom side of the settling chamber.