JP3759674B2 - Rainwater storage device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention can eliminate the initial rainwater mixed with foreign substances such as earth and sand, can collect the rainwater at the time of full-scale rain with little contamination such as earth and sand, and sterilizes the rainwater led to the water storage tank. In particular, the present invention relates to a rainwater storage device that can prevent the growth of algae and germs over a long period of time.
[0002]
[Prior art]
In recent years, rainwater collected by eaves etc. is led to a water storage tank and stored, and this rainwater is used as water for washing toilets and washing cars, watering garden trees and flower beds, or water for emergency disasters. Has been made to use as. For example, as shown in FIG. 2, the rainwater collected by the eaves a is guided to the water storage tank b, and the rainwater stored in the water storage tank b is appropriately taken out and used.
[0003]
[Problems to be solved by the invention]
However, the initial rainwater collected by eaves etc. is mixed with dust floating in the atmosphere and earth and sand deposited on the roof of the building. It was not possible to use it until then. Therefore, rainwater collected by eaves etc. is guided to the sedimentation tank and sediments such as earth and sand and dust are settled and separated. However, there is a problem of installation space in installing a sedimentation tank in general households. In addition, there is a problem that the maintenance inspection takes time.
[0004]
Moreover, only rain and sand having a relatively high specific gravity can be removed by introducing rainwater to the settling tank, and there has been a problem that dust or the like suspended in the air having a low specific gravity cannot be removed.
[0005]
Furthermore, when rainwater is stored in a water storage tank for a long period of time, there is a safety and health problem that algae and various germs propagate by organic substances mixed in the rainwater.
[0006]
The present invention solves such a problem, and it is possible to eliminate initial rainwater mixed with impurities such as earth and sand, and to collect rainwater at the time of full-scale rainfall with less contamination of earth and sand. It is intended to provide a rainwater storage device that can be sterilized and prevent the growth of algae and various germs over a long period of time.
[0007]
[Means for Solving the Problems]
According to the present invention, a bypass pipe is connected to an appropriate position of a gutter connected to a rain gutter, etc., a valve seat is provided on the inner wall of the gutter adjacent to the lower end of the bypass pipe outlet, and a valve body is provided below the valve seat. And the valve body is pushed up by an elastic body so as to abut against and separate from the valve seat from below , and is connected to a water storage tank at the lower end of the rod .
[0008]
The water storage tank has a configuration in which the inside of the tank is divided into upper and lower parts by a partition plate, and an upper water storage chamber is provided above the partition plate and a lower water storage chamber is provided below the partition plate, and a plurality of through holes are provided in the partition plate. A cylindrical filter is provided on the periphery of each through hole.
[0009]
The cylindrical filter is made of zeolite solid particles carrying metal ions such as silver and copper added to ultrahigh molecular weight polyethylene and then sintered to form countless micropores. When rainwater flowing into the chamber passes through the cylindrical filter, dust and the like mixed in the rainwater are filtered through countless fine pores and sterilized by contact with the zeolite solid particles exposed from the fine pores. It is characterized by flowing into the water storage chamber.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic cross-sectional view of a storage device showing an embodiment of the present invention, in which 1 is a gutter, 2 is a bypass pipe, and 3 is a water storage tank.
[0011]
The upper end of the gutter 1 is connected to a rain gutter or the like (not shown), and the lower end of the gutter 1 is connected to the water tank 3. Further, a bypass pipe 2 is connected to an appropriate position of the rod 1, and a valve seat 11 is provided on the inner wall of the rod 1 near the lower end of the outlet of the bypass tube 2. A valve body 12 is disposed below the valve seat 11, and the valve body 12 is pushed up by an elastic body 13 such as a coil spring and is in contact with the valve seat 11 from below. Reference numeral 14 denotes a support rod that supports the elastic body 13 from below. Although not shown, the support rod 14 is moved up and down to fix the elastic body 13 so as to press the valve body 12 against the valve seat 11. Can be adjusted.
[0012]
Usually, the urging force of the elastic body 13 is set as follows. That is, when the initial rainwater gently flows down in the ridge 1, the valve body 12 is set so as to be pressed against the valve seat 11 by the urging force of the elastic body 13 and closed. The initial rainwater is discharged from the bypass pipe 2. Then, when a large amount of rainwater falls down in the ridge 1 vigorously during a full-scale rain, the valve body 12 descends due to the rain water pressure exceeding the urging force of the elastic body 13, and the rainwater vertically moves inside the ridge 1. It is set to fall into the water storage tank 3.
[0013]
The water storage tank 3 is rectangular or cylindrical, and the inside of the water storage tank 3 is divided into upper and lower parts by a partition plate 4, and an upper water storage chamber 3a above the partition plate 4 and a lower water storage chamber 3b below it. And are provided. That is, the peripheral edge of the partition plate 4 is raised, and its upper end flange 43 is supported by a support bar 33 provided around the inner wall of the water storage tank 3 so that the upper water storage chamber 3a is formed above the partition plate 4 and Is provided with a lower water storage chamber 3b . Further, the partition plate 4 is provided with a large number of through holes 41, and the cylindrical filter 5 is raised vertically at the periphery of each through hole 41. The upper opening of the water storage tank 3 is covered with a top plate 6, and the lower end of the basket 1 is connected to a through hole provided in the top plate 6.
[0014]
The cylindrical filter 5 is a plastic formed by adding a zeolite solid particle having a particle diameter of 1 to 3 μm and carrying a metal ion such as silver or copper to ultrahigh molecular weight polyethylene, followed by sintering to form a cylindrical shape. A filter can be used. The cylindrical wall of the cylindrical filter 5 has innumerable fine holes with a hole diameter of about 50 to 300 μm, and the zeolite solid particles are exposed on the inner and outer peripheral surfaces of the cylindrical wall and innumerable fine holes. .
[0015]
Since such a plastic filter has a high porosity of micropores, clogging hardly occurs and it can be used for a long period of time. When the pore size of micropores is about 50 to 300 μm, dust or sand of 50 to 300 μm or more is used. Can be captured efficiently. Usually, the cylindrical filter 5 having an outer diameter of 50 to 100 mm and a length of 300 to 1,000 mm can be suitably used. The upper end of each cylindrical filter 5 raised from the partition plate 4 is slightly higher than the overflow port 31 provided in the upper portion of the side wall of the water storage tank 3, and rainwater flowing into the upper water storage chamber 3 a is stored in the cylindrical filter 5. It does not flow into the lower water storage chamber 3b without passing through. On the other hand, an outlet 32 for purified rainwater is provided at the bottom of the side wall of the water storage tank 3.
[0016]
The storage device of the present invention has the above-described configuration, and rainwater that has fallen on the roof of a building is collected by an eaves or the like and flows down in the eaves 1. Since the initial rainwater gently flows down in the eaves 1, the valve body 12 is in contact with the valve seat 11 by the urging force of the elastic body 13. For this reason, the initial rainwater mixed with dust floating in the atmosphere or earth and sand deposited on the roof of the building is discharged from the bypass pipe 2. Then, when a large amount of rain water falls down in the ridge 1 at the time of full-scale rain, the valve body 12 descends due to the rain water pressure exceeding the urging force of the elastic body 13, and relatively clear rain water is collected. 1 falls and flows into the water storage tank 3.
[0017]
Next, when rainwater flowing into the upper water storage chamber 3a passes through the cylindrical wall of the cylindrical filter 5, dust and the like mixed in the rainwater are captured by countless fine holes, and the cylindrical wall of the cylindrical filter 5 is captured. When passing through, it is sterilized in contact with the zeolite solid particles exposed from countless fine pores. For this reason, even if rainwater is stored in the water storage tank 3 for a long period of time, algae and germs do not propagate.
[0018]
In this rainwater purification process, when the cylindrical filter 5 is clogged, the cylindrical filter 5 is replaced with a new one or washed and reused. At this time, the top plate 6 is removed and a large number of cylindrical filters 5 together with the partition plate 4 are integrally removed and replaced with new ones, or washed and reused. In this way, a large number of cylindrical filters 5 can be easily replaced or cleaned in a short time. In addition, when the cylindrical filter is replaced or cleaned, repairing, inspection, cleaning, etc. in the water storage tank can be performed.
[0019]
【The invention's effect】
As described above in detail, when the rainwater storage device of the present invention is used, it is possible to eliminate the initial rainwater mixed with dust floating in the atmosphere, earth and sand deposited on the roof of the building, etc. It can efficiently purify rainwater. In addition, relatively clear rainwater at the time of full-scale rainfall is guided to the water storage tank and filtered through a cylindrical filter having numerous fine pores, and sterilized with zeolite solid particles exposed from the fine pores. Even if it stays in the water storage tank, algae are not generated and miscellaneous bacteria are not propagated.
[0020]
In addition, a large number of cylindrical filters installed in the water tank can be removed together with the partition plate, so that the cylindrical filters can be easily replaced and cleaned in a short time, and at the same time The tank can be repaired, inspected and cleaned. Furthermore, it can be used for various water storage tanks with different sizes by changing the shape, size, etc. of the partition plate.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of a rainwater storage device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a main part of a conventional apparatus.
[Explanation of symbols]
1 竪 樋 11 Valve seat 12 Valve body 13 Elastic body 2 Bypass pipe 3 Water tank 4 Partition plate

Claims (1)

A bypass pipe (2) is connected to an appropriate position of the gutter (1) connected to a rain gutter etc., and a valve seat (11) is placed on the inner wall of the gutter (1) close to the lower end of the outlet of the bypass pipe (2). The valve body (12) is disposed below the valve seat (11), and the valve body (12) is pushed up by the elastic body (13) so as to come into contact with and separate from the valve seat (11) from below. In addition , the water tank (3) is connected to the water tank (3) at the lower end of the trough (1). The water tank (3) is divided into upper and lower parts by a partition plate (4) and the partition plate ( 4) An upper water storage chamber is provided above and a lower water storage chamber is provided below the upper water storage chamber, and a plurality of through holes (41) are provided in the partition plate (4) so that the periphery of each through hole (41). A cylindrical filter (5) is set up on the surface, and the cylindrical filter (5) carries metal ions such as silver and copper on zeolite solid particles. After adding the above to ultra high molecular weight polyethylene, it is sintered and formed into countless fine pores. When rainwater flowing into the upper water storage chamber passes through the tubular filter (5), it becomes rainwater. Rainwater characterized by being mixed with countless fine pores and contaminated dust, etc., and sterilized by contact with zeolite solid particles exposed from the fine pores and then flowing into the lower reservoir. Reservoir device.

Images