JP7460127B2 - Cell-connected rainwater storage device and its cleaning method - Google Patents

Description

The present invention relates to a cell-connected rainwater storage device, a panel-type cell-connected rainwater storage device, and a cleaning method thereof.

In recent years, climate change due to global warming has become noticeable, and flood damage due to unprecedented heavy rains is occurring frequently. On the other hand, damage caused by abnormal droughts is certain to become a major social problem, and in Japan, water supply during disasters such as major earthquakes is also a major problem.

Rainwater storage tanks are classified according to the amount of water they can store: (1) rainwater tanks (up to several hundred liters), (2) small (up to several ^m3 ), (3) medium (up to several hundred ^m3 ), and (4) large (up to tens of thousands of ^m3 ). Of these, only (1) and (4) are currently in commercial circulation (there are many examples in large facilities such as dome stadiums), and (2) and (3) are very rare. However, in response to future climate change and in line with the revision of the basic policy of the "Basic Act on Water Cycle" and the "Act on Promotion of Rainwater Utilization" (implemented this year), it is thought that the next target will be the introduction of medium-sized rainwater storage tanks (3).

As an example of the medium-sized rainwater storage tank of (3), there is a panel-type rainwater storage tank. As shown in FIG. 6(a), the panel-type rainwater storage tank is a rectangular ceiling frame structure 10 with a skeleton ceiling frame 12 assembled on the four vertical and horizontal sides and reinforced with an auxiliary ceiling frame 14, a frame frame structure 20 of the same shape consisting of four skeleton frame frames 22 and auxiliary frame frames 24, and a skeleton frame structure 3 in which the ceiling frame structure 10 and the frame frame structure 20 are connected by a skeleton side frame 32 and an auxiliary side frame 34, and an external panel 4 is fitted between the frames on each outer surface of the skeleton frame structure 3. The panel-type rainwater storage tank is a rectangular storage tank that is connected to a rain gutter or a rainwater separation device to inject rainwater and has a drainage outlet. As disclosed in Patent Document 1, an assembly-type rainwater tank that can easily change the amount of water stored in the rainwater tank is disclosed, the panel-type rainwater storage tank has the advantage that the size and shape can be set to a certain degree of freedom because it is a panel type.

Such a panel-type rainwater storage tank may include a plurality of support frames 36 that support the ceiling frame structure 10, as shown in FIG. 6(b), but its internal structure is basically for simply storing water. It is a space with no other functions. Therefore, although a large amount of rainwater of several hundred cubic ^meters can be stored, the quality of the water is basically constant, and it is difficult to meet the water quality requirements for watering, flushing toilets, drinking water, etc.

When rainwater is collected in rainwater tanks and used for some purpose, the most important issue is the quality of the water. If the rainwater in the tank is not used for a long period of time, there is a high possibility that water will accumulate and deteriorate the water quality.If regular maintenance is not performed, muddy material (bottom mud) will accumulate at the bottom of the rainwater tank. , the water quality in the tank will decrease. Basically, the water stored in the tank is drained before the inside is cleaned, so if it is a medium-sized rainwater storage tank that can store several hundred ^cubic meters of water, maintenance such as cleaning requires cost and effort. For this reason, medium-sized rainwater storage tanks with large capacity may have a water purification unit built into the tank for internal cleaning, but even in this case, it is necessary to clean the inside of the medium-sized rainwater storage tank all at once, which is time consuming and costly. It takes. In addition, it is necessary to secure the electricity necessary for the control equipment and water purification equipment, and it cannot be used in remote areas such as remote islands or when lifelines are disrupted during a disaster.

Japanese Patent Application Publication No. 2003-193521 Patent No. 6667818

To solve these problems, the present invention provides a medium-sized rainwater storage tank that can flexibly accommodate the amount of stored water and the required water quality (for watering, toilet flushing, drinking water, etc.), is easy to clean inside, and can be flexibly installed to accommodate the conditions of the installation site, such as narrow or irregular land.

The cell-connected rainwater storage device according to the present invention includes a water tank provided with a drainage port at the bottom and an inlet for introducing rainwater into the tank, and the rainwater stored in the tank through the inlet is In a rainwater storage device that can drain water to the outside from the drainage port,
The internal water tank and the outside are separated by an outer wall, and the inlet, the drain, the water inlet for absorbing the stored water, and the communication port equipped with a check valve are bored in the outer wall. A cell-connected rainwater storage device in which N (N is a natural number of 2 or more) connected cell-type rainwater tanks (hereinafter also simply referred to as "cells") installed in the tank and connected to the outside are connected. ,
An external rainwater inlet for introducing external rainwater from the outside is bored in the outer wall of the first cell, and the external rainwater is introduced into the water tank of the first cell through the external rainwater inlet,
The adjacent k-th cell and the (k+1)-th cell (1≦k≦N-1; k is a natural number) are connected through their respective communication ports to allow water to flow therethrough, and the cell is attached to the communication port of the k-th cell. The checked valve prevents the stored water from flowing backward from the (k+1)th cell to the kth cell, and allows rainwater to flow in one direction from the first cell to the Nth cell.

The cell-connected rainwater storage device according to the present invention is the cell-connected rainwater storage device that includes a pump that drains water absorbed from the water intake pipe from the drainage pipe.
Each of the N cells is provided with a cleaning nozzle connected to the inlet in each water tank, the water suction pipe of the pump is connected to the water suction port of the (k+1)th cell, and the drain pipe of the pump is connected to the water suction port of the (k+1)th cell. The water suction pipe is connected to the inlet of the cell, and the water suction pipe supplies the stored water sucked from the water tank of the (k+1)th cell to the cleaning nozzle, the drain pipe of the pump being connected to the inlet of the kth cell. , the water tank of the k-th cell can be washed with the water stored in the (k+1)-th cell.

In the cell-connected rainwater storage device according to the present invention, an electromagnetic valve is attached to a drain port and/or an inlet port and/or a water intake port provided in each of the N cells, and is connected to the electromagnetic valve by wire or wirelessly. The control device transmits an opening/closing signal to the electromagnetic valve, thereby remotely controlling the opening and closing of the drain port and/or inlet port and/or water intake port to which the electromagnetic valve is attached. It is.

The cell-connected rainwater storage device according to the present invention is a cell-connected rainwater storage device in which electromagnetic valves are attached to the drainage outlets, inlet ports, and water intake ports of the N cells, the cleaning nozzles, and the pump are all connected to the control device by wire or wirelessly, and can be remotely controlled,
The control device sends an opening/closing signal to an electromagnetic valve attached to the drain outlet of the kth cell to open the drain outlet to drain water, sends an opening/closing signal to electromagnetic valves attached to the inlet of the kth cell and the suction port of the (k+1)th cell to open the inlet of the kth cell and the suction port of the (k+1)th cell, sends a pumping signal to the pump so that the suction pipe of the pump sucks in the stored water from the suction port of the (k+1)th cell and the drain pipe of the pump supplies it to the inlet of the kth cell, and sends a cleaning signal to the cleaning nozzle connected to the inlet of the kth cell to operate the cleaning nozzle, thereby cleaning the water tank of the kth cell with the stored water in the (k+1)th cell.

In the cell-connected rainwater storage device according to the present invention, the lower bottom of the water tank is a convex lower bottom that protrudes downward and has a deepest part, and the drain outlet is provided at the deepest part.

The cell-connected rainwater storage device according to the present invention is the above-mentioned cell-connected rainwater storage device including a pump that draws in water from a suction pipe and discharges the water from a discharge pipe,
Each of the N cells includes a cleaning nozzle connected to the inlet in the water tank;
The suction pipe of the pump is connected to the suction port of the (k+1)th cell, and the discharge pipe of the pump is connected to the inlet of the kth cell,
The suction pipe supplies the stored water sucked from the water tank of the (k+1)th cell to the cleaning nozzle connected to the inlet of the kth cell through a drain pipe of the pump, so that the water tank of the kth cell can be cleaned with the stored water in the (k+1)th cell;
An electromagnetic valve is attached to a drain port, an inlet port, and/or a water intake port provided in each of the N cells,
A control device is provided which is connected to the solenoid valve by wire or wirelessly,
The control device transmits an opening/closing signal to the electromagnetic valve, thereby remotely controlling the opening/closing of a drainage outlet and/or an inlet and/or a water intake port to which the electromagnetic valve is attached.
A machine room equipped with the control device and the pump , which are connected by wire or wirelessly to the electromagnetic valves attached to each drain outlet of each cell, is built into the Mth cell (2≦M≦N; k is a natural number) or into the (N+1)th cell added to the cell-linked rainwater storage device.

The cell-connected rainwater storage device according to the present invention is a cell -connected rainwater storage device in which the electromagnetic valves attached to the drainage outlets, inlet ports, and water intake ports of the N cells, the cleaning nozzles, and the pump are all connected to the control device by wire or wirelessly and can be remotely controlled,
The control device,
An open/close signal is sent to an electromagnetic valve attached to the drain outlet of the kth cell to open the drain outlet and drain the water,
Sending an open/close signal to the electromagnetic valves attached to the inlet of the kth cell and the water inlet of the (k+1)th cell to open the inlet of the kth cell and the water inlet of the (k+1)th cell;
A pumping signal is sent to the pump, and the suction pipe of the pump sucks in the stored water from the suction port of the (k+1)th cell, and the discharge pipe of the pump supplies the water to the inlet of the kth cell;
Transmitting a cleaning signal to the cleaning nozzle connected to the inlet of the kth cell to operate the cleaning nozzle;
A cell-linked rainwater storage device capable of cleaning a water tank of a k-th cell with stored water in a (k+1)-th cell,
The pump may be located in the machine room.
Alternatively, the cell-connected rainwater storage device according to the present invention may include a power source or a storage battery in the machine room.

The cell-connected rainwater storage device according to the present invention may include a solar panel outside the cell, and may be capable of supplying electrical energy to the storage battery.

The cell-connected rainwater storage device according to the present invention includes the above cell-connected rainwater storage device in which the external rainwater inlet provided in the first cell is connected to the rainwater separation device.
A 0th cell including an initial rainwater tank with an external rainwater inlet connected to the rainwater separation device and no communication port between the 0th cell and the 1st cell is added in addition to the N cells. A connected rainwater storage device,
Into the 0th cell, the initial rainwater sorted by the rainwater separation device is introduced into the water tank of the 0th cell via the external rainwater inlet, and into the 1st cell, the initial rainwater separated by the rainwater separation device is introduced into the water tank of the 0th cell. External rainwater other than rainwater is introduced into the water tank of the first cell through the external rainwater inlet.

II. Cleaning method for cell-connected rainwater storage device

A method for cleaning a rainwater storage apparatus of a connected cell type according to the present invention is a method for cleaning an inside of a water tank of a k-th cell in the rainwater storage apparatus of the connected cell type, comprising the steps of:
(1) opening the drain outlet of the kth cell and draining all of the water stored in the water tank of the kth cell from the drain outlet;
(2) operating the pump, and supplying the stored water sucked by a suction pipe of the pump from the suction port of the (k+1)th cell to the cleaning nozzle connected by a discharge pipe of the pump to the inlet of the kth cell;
(3) the cleaning nozzle cleans the inside of the water tank of the kth cell with stored water sucked from the water tank of the (k+1)th cell;
(4) closing the drain of the kth cell;
including.

A cleaning method for a cell-connected rainwater storage device according to the present invention is a cleaning method for cleaning the inside of a k-th cell water tank in the cell-connected rainwater storage device by transmitting a signal from the control device, the method comprising:
(11) the control device transmits an opening/closing signal to an electromagnetic valve attached to the drain port of the k-th cell to open the drain port of the k-th cell;
(12) draining all the water stored in the water tank of the k-th cell from the opened drain port of the k-th cell;
(13) The control device transmits an opening/closing signal to the electromagnetic valves attached to the inlet of the k-th cell and the water intake of the (k+1)th cell, and a step of opening the water intake port;
(14) the control device transmits a pumping signal to the pump to operate the pump;
(15) supplying the stored water that the water suction pipe of the activated pump sucked from the water suction port of the (k+1)th cell to the cleaning nozzle whose drain pipe is connected to the inlet of the k-th cell; ,
(16) the control device transmits a cleaning signal to the cleaning nozzle to operate the cleaning nozzle;
(17) a step in which the activated cleaning nozzle cleans the inside of the water tank of the k-th cell with the stored water absorbed from the water tank of the (k+1)-th cell;
(18) a step in which the control device transmits an opening/closing signal to an electromagnetic valve attached to the drain port of the k-th cell to close the drain port of the k-th cell;
including.

III. Panel-type cell-connected rainwater storage device

In the panel-type cell-connected rainwater storage device according to the present invention, a rectangular ceiling frame in which frame ceiling frames are assembled on four sides in the vertical and horizontal directions is formed into a plurality of rectangles by at least one auxiliary ceiling frame in the vertical and/or horizontal directions. A divided ceiling frame structure, a pedestal frame structure of the same shape as the ceiling frame structure consisting of four square skeletal pedestal frames and at least one auxiliary pedestal frame, and a rectangular ceiling frame structure and a pedestal frame structure. A skeletal frame structure consisting of a side frame structure in which the corners and both ends of the auxiliary frame are connected by a skeletal side frame and an auxiliary side frame, respectively, and inside thereof,
A rectangular parallelepiped tank frame structure including one or more support frames vertically connecting an inner point of an auxiliary trestle frame of the trestle frame structure and an inner point of an auxiliary ceiling frame of the ceiling frame structure, a skeletal ceiling frame, a skeletal frame. The external panel is fitted into a rectangle surrounded on four sides by any four frames: trestle frame, auxiliary ceiling frame, auxiliary trestle frame, skeleton side frame, or auxiliary side frame, and is connected to a rainwater separation device to drain rainwater. In a rectangular parallelepiped rainwater tank with a drainage port and an inlet,
Claims 1 to 3 claim 1, wherein an internal panel is fitted between the side frame and the support frame or between the two support frames to form N (N is a natural number of 2 or more) rectangular parallelepiped rainwater tanks inside the rectangular parallelepiped rainwater tank. A cell constituting the cell-connected rainwater storage device according to any one of Item 8 was formed.

The cell-linked rainwater storage device of the present invention is configured by linking cellular rainwater tanks (cells), so it can flexibly accommodate the different stored water volumes and required water qualities (for watering, toilet flushing, drinking water, etc.) for each cell, increasing the freedom of design. The size and shape of each cell can be freely set, so it can be installed on small or irregularly shaped land, and can be flexibly installed to suit the conditions of the installation site.

That is, in the cell-connected rainwater storage device of the present invention having a configuration in which N cells are connected, the adjacent k-th cell and (k+1)-th cell (1≦k≦N-1; N and k are natural numbers) are as follows. They are connected through a communication port equipped with a check valve, and are configured to allow rainwater to flow in one direction from the first cell to the Nth cell. Therefore, from the first cell to the Nth cell, the water quality of the aquarium within the cell naturally increases, and the cells connected to the rear with a larger number are arranged in such a way that they can respond to a higher required water quality. ing.

In addition, in the cell-connected rainwater storage device of the present invention, the water suction pipe of the pump transfers the stored water sucked from the water tank of the (k+1)th cell to the cleaning nozzle connected to the inlet of the kth cell by the drain pipe of the pump. By supplying water, the water tank of the k-th cell can be washed with the water stored in the (k+1)-th cell. Therefore, it is economical to be able to clean a water tank in a small-capacity cell using water stored in a subsequent cell that has higher quality water, and it is not necessary to clean all the cells at once, but it can be done one after another. Both labor and cost can be reduced.

As described above, in the cell-connected rainwater storage device of the present invention, the water quality in the tanks in the cells from the first cell to the Nth cell is high, so almost no bottom mud accumulates in the bottom of the tanks of the cells with higher numbers connected to the rear. Therefore, it is sufficient to periodically focus on cleaning the tanks of the cells with lower numbers, where bottom mud is likely to accumulate, and the cleaning work of the entire cell-connected rainwater storage device can be made more efficient.

In the cell-connected rainwater storage device of the present invention, the cleaning process as described above can also be automated by remotely controlling the pump and the electromagnetic valves attached to the water intakes and inlets in the cells using the control device. Since the panel-type cell-connected rainwater storage device of the present invention is of the panel type, a water purification unit (machine room) can be built into the storage tank, and equipment necessary for rainwater purification can be integrated. As described above, the (panel type) cell-connected rainwater storage device according to the present invention can reduce operating costs by automating basic maintenance such as bottom sludge removal, which is essential for the operation of a rainwater storage tank. .

The (panel-type) cell-connected rainwater storage device of the present invention stores the initial rainwater that would have been discharged up until now, and utilizes all of the collected rainwater as water for transporting sewage in the sewage pipes, etc. As described above, it can flexibly respond to the different stored water volumes and required water qualities (watering, toilet flushing water, drinking water, etc.) for each cell, and all of the collected rainwater can be used effectively.

In addition, the panel-type cell-connected rainwater storage device according to the present invention employs a top panel with a solar panel, so that it can self-sufficient the electricity necessary for control equipment and water purification equipment, and can supply water using rainwater as a stand-alone water source. It functions as a system. Therefore, it can be operated in remote areas such as remote islands or when lifelines are disrupted during a disaster.

FIG. 1 is a schematic front view of a cell-connected rainwater storage device according to the present invention. FIG. 6 is a schematic front view of a cell-connected rainwater storage device according to another embodiment of the present invention. FIG. 1 is a schematic perspective view of a cell (cell-type rainwater tank) according to the present invention. 1A and 1B are schematic plan and perspective views, respectively, of a panel-type cell-connected rainwater storage device according to the present invention. FIG. 1 is a schematic enlarged plan view of a panel-type cell-connected rainwater storage device according to the present invention. (a) A schematic perspective view of a skeletal frame structure, (b) a schematic perspective view of a tank frame structure, and (c) a schematic plan view of a tank frame structure of the panel-type cell-connected rainwater storage device according to the invention. FIG. 2 is a schematic enlarged plan view of a panel-type cell-connected rainwater storage device equipped with an initial rainwater tank according to the present invention.

Hereinafter, an embodiment and examples of a panel-type cell-connected rainwater storage device according to the present invention will be described with reference to the drawings. Note that the same reference numerals will be used to refer to the same components throughout the drawings.

I. Cell-linked rainwater storage device

The cell-connected rainwater storage device 1 according to the present invention shown in FIG. 1 is provided with a drainage port 55 at the bottom, as in the conventional rainwater storage device, and is connected to an external rain gutter, rainwater separation device 100, etc. This rainwater storage device includes a water tank 51 provided with an inlet 52 and is capable of draining rainwater stored in the water tank 51 through the inlet 52 to the outside through a drain port 55. The cell-connected rainwater storage device 1 of the present invention is characterized in that a large number of cell-type rainwater tanks (hereinafter also simply referred to as "cells") 50 are connected, compared to conventional rainwater storage devices.

[cell]
That is, the cell-connected rainwater storage device 1 of the present invention has an internal water tank 51 and an external wall separated from each other by an outer wall, and includes an inlet 52, a drain 55, and a water intake 58 for absorbing stored water. , a communication port 56 to which a check valve 57 is attached is bored in each outer wall, and N cells 50 are connected to connect the water tank 51 and the outside (see FIG. 3). It is a device. Here, N is a natural number of 2 or more, and the cell-connected rainwater storage device 1 is configured by connecting two or more cells 50.

[Communication port]
In the cell-connected rainwater storage device 1, the first cell has an external rainwater inlet 52' drilled in its outer wall to introduce external rainwater from the rain gutter or the rainwater separation device 100, etc., so that the external rainwater is introduced into the first cell. It is introduced into the water tank 51 of the first cell through the port 52'. Then, the adjacent k-th cell and the (k+1)-th cell (1≦k≦N-1; k is a natural number) are connected through their respective communication ports 56 to allow water to flow through them (see FIG. 1). The check valve 57 attached to the communication port 56 of the k-th cell can prevent the stored water from flowing back from the (k+1)-th cell to the k-th cell. Therefore, the cell-connected rainwater storage device 1 of the present invention is configured to allow rainwater to flow in one direction from the first cell toward the Nth cell.

[valve]
Moreover, in the cell-connected rainwater storage device 1 according to the present invention, it is preferable that a manual or electromagnetic valve (manual valve or electromagnetic valve) 551 is attached to each drain port 55 of the N cells 50. By closing the valve 551, rainwater can be stored in the cell 50, and by opening the valve 551, the stored water in the cell 50 can be drained from the drain port 55 provided at the bottom.

Furthermore, in the cell-connected rainwater storage device 1 according to the present invention, it is preferable to attach manual or electromagnetic valves 521, 581 to the inlets 52 and water intakes 58 provided in each of the N cells 50. The amount of stored water in the cells 50 can be adjusted by opening and closing the valves 521, 581.

[General cleaning]
The cell-connected rainwater storage device 1 of the present invention uses a pump 74 that drains water absorbed from a water suction pipe 741 from a drain pipe 742, and uses the water stored in the (k+1)th cell to fill the water tank 51 of the k-th cell. Can be washed. In order to clean the water tank 51, it is preferable that each water tank 51 of the N cells 50 is provided with a cleaning nozzle 53 connected to the inlet 52. As shown in FIG. 1, the external rainwater inlet 52' of the first cell is connected to the rainwater separation device 100 via the changeover switch 101, so when cleaning the first cell, for example, operate the changeover switch 101. This prevents outside rainwater from entering the first cell, and only the water stored in the second cell flows into the inlet 52 of the first cell. Note that such cleaning can be performed by opening and closing the valves 551, 521, and 581 attached to the drain port 55, the inlet port 52, and the water intake port 58, but the valves 551, 521, and 581 are manually operated. It may also be electromagnetic.

To clean the water tank 51 using the pump 74 as described above, the suction pipe 741 of the pump 74 is connected to the suction port 58 of the (k+1)th cell, and the drain pipe 742 of the pump 74 is connected to the inlet 52 of the kth cell. The drain pipe 742 of the pump 74 then supplies the stored water sucked in from the water tank 51 of the (k+1)th cell by the suction pipe 741 to the cleaning nozzle 53 connected to the inlet 52 of the kth cell, so that the water tank 51 of the kth cell can be cleaned with the stored water in the (k+1)th cell.

[Control device and electromagnetic valve]
In order to automate such cleaning, it is preferable to attach electromagnetic valves 551, 521, and 581 to the drain port 55, inlet port 52, and water intake port 58 provided in each of the N cells 50, respectively. The cell-connected rainwater storage device 1 of the present invention preferably includes a control device 72 connected to each electromagnetic valve 551, 521, 581 by wire or wirelessly. The control device 72 transmits opening/closing signals to the electromagnetic valves 551, 521, 581, thereby remotely controlling the opening/closing of the drain port 55, the inlet port 52, and the water intake port 58 to which the electromagnetic valves 551, 521, and 581 are attached. be able to.

[Remote cleaning]
The electromagnetic valves 551, 521, 581 attached to the drain port 55, the inlet port 52, and the water intake port 58 provided in the N cells, the cleaning nozzle 53, and the pump 74 are connected to the control device 72 by wire or wirelessly. In the cell-connected rainwater storage device 1 that is connected to and can be remotely controlled, the control device 72 controls the electromagnetic valves 551, 521, 581, the cleaning nozzle 53, and the pump 74 as follows during remote cleaning.

That is, the control device 72 first transmits an opening/closing signal to the electromagnetic valve 551 attached to the drain port 55 of the k-th cell to open the drain port 55 and drain water. After that, an opening/closing signal is sent to the electromagnetic valves 521 and 581 attached to the inlet 52 of the k-th cell and the water intake port 58 of the (k+1)th cell, and Open the water intake port 58. Then, a pumping signal is sent to the pump 74, and the water suction pipe 741 of the pump 74 takes in the stored water from the water intake port 58 of the (k+1)th cell, and the drain pipe 742 of the pump 74 transfers it to the inlet port 52 of the kth cell. supply At the same time, a cleaning signal is sent to the cleaning nozzle 53 connected to the inlet 52 of the k-th cell to operate the cleaning nozzle 53, thereby cleaning the water tank 51 of the k-th cell with the water stored in the (k+1)th cell. be able to.

[Convex bottom]
In the cell-connected rainwater storage device 1 according to the present invention, the bottom of the water tank 51 is a convex bottom 54 that projects downward and has the deepest part, and a drain port 55 is provided at the deepest part. The convex bottom part disclosed in Patent Document 2 is extremely effective in practice, and can concentrate bottom sludge at the drainage port in the center of the bottom part.

[machine room]
The cell-connected rainwater storage device 1 according to the present invention is the cell-connected rainwater storage device according to claim 1, in which N cells 50 (N is a natural number of 2 or more) are connected.
A machine room 70 including a control device 72 connected by wire or wirelessly to an electromagnetic valve 551 attached to each drain port 55 of each cell 50 is built in the Mth cell (2≦M≦N; k is a natural number). , or built into the (N+1)th cell added to the cell-connected rainwater storage device.

[Machine room; pump, power supply] [Solar panels]
The connected-cell rainwater storage device 1 according to the present invention may include a pump 74 in the machine room 70. Alternatively, the connected-cell rainwater storage device 1 according to the present invention may include a power source or a storage battery in the machine room 70. The connected-cell rainwater storage device 1 according to the present invention may include a solar panel on the outside, such as on the roof or outer wall of the cells 50, so as to supply electric energy to the storage battery.


II. Method for cleaning a cell-connected rainwater storage device

The method for cleaning the connected-cell rainwater storage device according to the present invention is a method for cleaning the inside of the water tank 51 of the k-th cell in the connected-cell rainwater storage device 1 described above, and can be performed by the following steps (STEP 1) to (STEP 4).
(STEP 1) opening the drain outlet 55 of the k-th cell and draining all of the stored water in the water tank 51 of the k-th cell through the drain outlet 55;
(STEP 2) A step of operating the pump 74, and supplying the stored water sucked by the suction pipe 741 of the pump 74 from the water tank 51 of the (k+1)th cell to the cleaning nozzle 53 connected to the inlet 52 of the kth cell via the drain pipe 742 of the pump 74;
(STEP 3) the cleaning nozzle 53 cleans the inside of the water tank 51 of the k-th cell with the stored water sucked from the water tank 51 of the (k+1)-th cell;
(STEP 4) closing the drain outlet 55 of the kth cell;
including.

The method for cleaning the connected-cell rainwater storage apparatus according to the present invention may be a method for cleaning the inside of the water tank 51 of the k-th cell by remote control by the control device 72 in the connected-cell rainwater storage apparatus 1. That is, the method for cleaning the connected-cell rainwater storage apparatus according to the present invention includes (STEP 11) to (STEP 18),
(11) the control device 72 transmits an opening/closing signal to the electromagnetic valve 551 attached to the drain outlet 55 of the kth cell to open the drain outlet 55 of the kth cell;
(12) draining all of the stored water in the water tank 51 of the k-th cell through the drain outlet 55 of the k-th cell that has been opened;
(13) the control device transmits an opening/closing signal to electromagnetic valves attached to the inlet of the kth cell and the water inlet of the (k+1)th cell to open the inlet of the kth cell and the water inlet of the (k+1)th cell;
(14) the controller 72 sending a pumping signal to the pump 74 to operate the pump 74;
(15) a step in which the suction pipe 741 of the operated pump 74 sucks in the stored water from the suction port 58 of the (k+1)th cell, and the drain pipe 742 of the pump 74 supplies the collected water to the cleaning nozzle 53 connected to the inlet 52 of the kth cell;
(16) the control device 72 transmitting a cleaning signal to the cleaning nozzle 53 to operate the cleaning nozzle 53;
(17) the operating cleaning nozzle 53 cleans the inside of the water tank 51 of the k-th cell with the stored water sucked from the water tank 51 of the (k+1)-th cell;
(18) sending an opening/closing signal to the electromagnetic valve 551 attached to the drain outlet 55 of the kth cell by the control device 72 to close the drain outlet 55 of the kth cell;
including.

As described above, after draining the water stored in the water tank 51 to be cleaned, the process of cleaning the inside using the water stored in the subsequent cell, that is, the water in the storage tank of a higher water quality, is repeated. At this time, water in the upper tank of the tank drained for cleaning purposes is prevented from flowing back by the check valve 57. For example, the inside of the tank is cleaned when rain is predicted, so that the inside of the water tank 51 is filled with water due to the rain. By determining which water tank 51 to clean, for example, depending on the predicted rainfall amount, this leads to the effect of mitigating inland water flooding by suppressing outflow. This cleaning step can be performed automatically by the controller 72 or manually if necessary.


III. Panel-type cell-connected rainwater storage device

As described above, a conventional panel-type rainwater storage tank is a tank configured by fitting an external panel 4 between the frames on the outer surfaces of a skeletal frame structure 3 that includes a ceiling frame structure 10, a mounting frame structure 20 of the same shape, and a side frame structure 30 that connects the ceiling frame structure 10 and the mounting frame structure 20 (see FIG. 6(a)).

As shown in FIG. 6(a), the ceiling frame structure 10 is a rectangular ceiling frame with a skeleton ceiling frame 12 assembled on the four vertical and horizontal sides, divided into multiple rectangles in the vertical and/or horizontal directions by at least one auxiliary ceiling frame 14. The mounting frame structure 20 has the same shape as the ceiling frame structure 10 and is made up of four skeleton mounting frames 22 and at least one auxiliary mounting frame 24 that form a rectangle. The side frame structure 30 supports the ceiling frame structure 10 by connecting the rectangular ceiling frame structure 10 and the four corners of the mounting frame structure 20 and both ends of the auxiliary mounting frame 24 with skeleton side frames 32 and auxiliary side frames 34, respectively.

A conventional panel-type rainwater storage tank may be a rectangular tank frame structure 2 as shown in FIG. 6(b), which includes one or more support frames 36 that vertically connect an inner point of the auxiliary rack frame 24 of the rack frame structure 20 to an inner point of the auxiliary ceiling frame 14 of the ceiling frame structure 10.

A conventional panel type rainwater storage tank is surrounded on four sides by any four frames: a skeletal ceiling frame 12, a skeletal mount frame 22, an auxiliary ceiling frame 14, an auxiliary mount frame 24, a skeletal side frame 32, or an auxiliary side frame 34. This is a rectangular parallelepiped rainwater tank, which is formed by fitting an external panel 4 into a rectangular shape, is connected to a rainwater separation device 100 to inject rainwater, and is provided with a drain port 55.

Using such a conventional panel-type rainwater storage tank as a prototype, the panel-type cell-linked rainwater storage device 1' of the present invention can be constructed. That is, the panel-type cell-linked rainwater storage device 1' of the present invention can be constructed with a structure similar to that of the cell-linked rainwater storage device 1 described above by fitting an internal panel 6 between the side frames 32, 34 and the support frame 36 or between two support frames 36 as shown in FIG. 5, forming N cells 50 (N is a natural number of 2 or more) inside a rectangular parallelepiped rainwater tank.

[Panel type cell connected rainwater storage device 1]
The panel-type cell-connected rainwater storage device 1' according to the first embodiment includes a ceiling frame structure 10, a pedestal frame structure 20 having the same shape as the ceiling frame structure 10, and a side frame structure connecting these structures. The external appearance may be the same as that of a conventional panel type rainwater storage tank in which the external panel 4 is fitted between frames (see FIGS. 6(a) and 6(b)).

As described above, the panel-type cell-linked rainwater storage device 1' of Example 1 includes one or more support frames 36 that vertically connect an inner point of the auxiliary stand frame 24 of the stand frame structure 20 to an inner point of the auxiliary ceiling frame 14 of the ceiling frame structure 10 inside the skeletal frame structure 3, and an internal panel 6 is fitted between the side frames 32, 34 and the support frames 36 or between two support frames 36 to form N cells 50 (N is a natural number of 2 or more) inside the rectangular parallelepiped rainwater tank.

The panel type cell connected rainwater storage device 1' of Example 1 shown in FIG. 6(c) has two support frames 36, and seven internal panels 6 are fitted to form six cells. 50 is formed. The structure and function of the cell 50 are exactly the same as the cell-connected rainwater storage device 1 described above, and are configured to allow rainwater to flow in one direction from the first cell to the sixth cell. , the water tank of the k-th cell can be washed with the water stored in the (k+1)-th cell (k is an integer from 0 to 5).

The panel-type cell-connected rainwater storage device 1' of the second embodiment has four support frames 36, and nine cells 50 are formed by fitting 12 inner panels 6. . Each cell 50 can be assigned a role depending on its water quality, and in this embodiment, the initial rainwater sorted by the rainwater separator 100 (see FIG. 4(a)) is discarded, and other than the initial rainwater is discarded. The structure is such that external rainwater is stored in the first water tank of the first cell.

First, as described above, external rainwater other than the initial rainwater sorted by the rainwater separation device 100 is introduced into the first water tank (first cell). When the stored water reaches the height of the communication port 56, the rainwater introduced into the first tank flows into the second tank (second cell), and then into the subsequent adjacent cells 50 one after another. Since a check valve 57 is attached to the communication port 56, rainwater that has flowed into the subsequent cell 50 will not flow back.

In the panel-type cell-linked rainwater storage device 1' of this embodiment 2, the seventh cell may be used as a machine room 70 as shown in FIG. 5, and a control device 72, a pump 74, a power source, a storage battery, etc. may be installed. Since the rainwater that has flowed into the sixth water tank (sixth cell) is of high quality, it can be further filtered by a hollow fiber membrane or the like using a water purification pump 75 in the machine room 70 (seventh cell), sterilized by a UV sterilizer, etc., and stored in the first purified water tank (eighth cell) using the communication port 56 with a check valve 57 attached, and used for washing and watering (see FIG. 4(a)). The water stored in the first purified water tank (eighth cell) can then be further disinfected by chlorine, etc., and stored in the second purified water tank (ninth cell), and used for drinking, bathing, etc. (see FIG. 4(a)).

Furthermore, as shown in FIG. 4(b), solar panels 5 may be installed on the roof of the panel-type cell-connected rainwater storage device 1', and electrical energy may be stored in a storage battery installed in the machine room 70. By using a top panel with solar panels 5 on the roof, the power required for control devices such as the control device 72 and the water purification device can be self-sufficient, and the system can function as a stand-alone water supply system that uses rainwater as a water source, making it possible to operate in remote areas such as remote islands or when lifelines are cut off during a disaster.

[Initial rain tank]
A panel-type cell-connected rainwater storage device 1' according to the third embodiment is a cell-connected rainwater storage device provided with an initial rainwater tank. Although a panel-type cell-connected rainwater storage device 1' is illustrated in FIG. 7, a cell-connected rainwater storage device 1 that is not a panel type can be similarly configured.

In FIG. 7, in the panel-type cell-connected rainwater storage device 1', an external rainwater inlet 52' provided in the first cell is connected to the rainwater separation device 100, as in the second embodiment. The panel-type cell-connected rainwater storage device 1' according to the third embodiment is provided with an external rainwater inlet 52' connected to the rainwater separation device 100, and is used for initial rainwater storage with no communication port provided between it and the first cell. The 0th cell provided with a water tank is a connected rainwater storage device added in addition to the above-mentioned N cells.

Into the 0th cell, the initial rainwater sorted by the rainwater separation device 100 is introduced into the water tank of the 0th cell via the external rainwater inlet 52'. As in the second embodiment, external rainwater other than the initial rainwater sorted by the rainwater separator 100 is introduced into the first cell's water tank through the external rainwater inlet 52'.

A panel-type cell-connected rainwater storage device 1' (or cell-connected rainwater storage device 1) equipped with such an initial rainwater tank stores initial rainwater in the initial rainwater tank of cell 0 without discarding it, and can be used for sewage, etc., allowing for efficient use of rainwater.

Although the cell-connected rainwater storage device, the panel-type cell-connected rainwater storage device, and the cleaning method thereof of the present invention have been described above, the present invention is not limited to the above-described embodiments and examples.

In addition, the present invention can be implemented in various forms with various improvements, modifications, and changes based on the knowledge of those skilled in the art without departing from the spirit of the invention.

INDUSTRIAL APPLICABILITY The panel-type cell-connected rainwater storage device according to the present invention can be used to improve the quality of rainwater stored in a rainwater tank, to improve the efficiency of rainwater utilization, and to provide a stable supply of stored rainwater.

1: Cell connected rainwater storage device 1': Panel type cell connected rainwater storage device 2: Tank frame structure 3: Skeletal frame structure 4: External panel 5: Solar panel 6: Internal panel 10: Ceiling frame structure 12: Skeleton ceiling Frame 14: Auxiliary ceiling frame 16:
20: Frame structure 22: Skeleton frame 24: Auxiliary frame 26:
30: Side frame structure 32: Skeleton side frame 34: Auxiliary side frame 36: Support frame 50: Cell (cell type rainwater tank)
51: Water tank 52: Inlet 521: Valve (electromagnetic valve)
52': External rainwater inlet 53: Cleaning nozzle 54: Convex bottom 55: Drain port 551: Valve (electromagnetic valve)
56: Communication port 57: Check valve 58: Water intake port 581: Valve (electromagnetic valve)
70: Machine room 72: Control device 74: Pump 741: Water intake pipe 742: Drain pipe 75: Water purification pump 76: Transmitter/receiver 100: Rainwater separation device 101: Changeover switch

Claims (13)

A rainwater storage device includes a water tank having a drain outlet at the bottom and an inlet for introducing rainwater into the water tank, and the rainwater stored in the water tank can be discharged from the drain outlet to the outside via the inlet.
The inside tank is separated from the outside by an outer wall.
The inlet, the outlet, a water intake for absorbing stored water, and a communication port equipped with a check valve are drilled in the outer wall of the rainwater storage device, and N (N is a natural number of 2 or more) cellular rainwater tanks (hereinafter simply referred to as "cells") that connect the water tank to the outside are connected together,
The first cell has an external rainwater inlet hole formed in an outer wall thereof for introducing external rainwater from the outside , and the external rainwater is introduced into the water tank of the first cell through the external rainwater inlet hole;
adjacent k-th cell and (k+1)-th cell (1≦k≦N−1; k is a natural number) are connected via their respective communication ports to allow water to pass through;
The check valve attached to the communication port of the kth cell prevents backflow of the stored water from the (k+1)th cell to the kth cell,
A cell-connected rainwater storage device that allows rainwater to flow in one direction, from the first cell to the Nth cell. The cell-connected rainwater storage device according to claim 1, further comprising a pump that drains water absorbed from the water suction pipe from the drain pipe.
The N cells each include a cleaning nozzle connected to the inlet in each water tank,
The water intake pipe of the pump is connected to the water intake port of the (k+1)th cell, the drain pipe of the pump is connected to the inlet of the kth cell,
The water suction pipe supplies the stored water sucked from the water tank of the (k+1)th cell to the cleaning nozzle connected to the inlet of the kth cell by the drain pipe of the pump, and the water is stored in the (k+1)th cell. A cell-connected rainwater storage device that can clean the K-th cell water tank with water. An electromagnetic valve is attached to a drain port and/or an inlet port and/or a water intake port provided in each of the N cells,
A control device connected to the electromagnetic valve by wire or wirelessly,
The cell according to claim 1, wherein the control device can remotely control opening and closing of a drain port and/or an inlet port and/or a water intake port to which the electromagnetic valve is attached by transmitting an opening/closing signal to the electromagnetic valve. Connected rainwater storage device. The electromagnetic valves respectively attached to the drain, inlet, and water intake provided in the N cells, and the cleaning nozzle and pump according to claim 2 are connected to the control device according to claim 3 by wire. Or in a cell-linked rainwater storage device that can be wirelessly connected and remotely controlled,
The control device includes:
Sending an opening/closing signal to the electromagnetic valve attached to the drain port of the k-th cell to open the drain port and drain water;
Sending an opening/closing signal to the electromagnetic valve attached to the inlet of the k-th cell and the water inlet of the (k+1)th cell to open the inlet of the k-th cell and the water inlet of the (k+1)th cell;
transmitting a pumping signal to the pump, the water suction pipe of the pump supplies the stored water sucked from the water suction port of the (k+1)th cell to the inlet of the kth cell, and the drain pipe of the pump supplies the water to the inlet of the kth cell;
Sending a cleaning signal to the cleaning nozzle connected to the inlet of the k-th cell to operate the cleaning nozzle,
A cell-connected rainwater storage device capable of cleaning the water tank of the k-th cell with the water stored in the (k+1)-th cell. 2. The cell-connected rainwater storage device according to claim 1, wherein the bottom of the water tank is a convex bottom that projects downward and has the deepest part, and the drainage port is provided at the deepest part. The cell-connected rainwater storage device according to claim 1, further comprising a pump that drains water absorbed from the water suction pipe from the drain pipe.
The N cells each include a cleaning nozzle connected to the inlet in each water tank,
The water intake pipe of the pump is connected to the water intake port of the (k+1)th cell, the drain pipe of the pump is connected to the inlet of the kth cell,
The water suction pipe supplies the stored water sucked from the water tank of the (k+1)th cell to the cleaning nozzle connected to the inlet of the kth cell by the drain pipe of the pump, and the water is stored in the (k+1)th cell. The water tank of the k-th cell can be washed with water, and
An electromagnetic valve is attached to a drain port and/or an inlet port and/or a water intake port provided in each of the N cells,
A control device connected to the electromagnetic valve by wire or wirelessly,
The control device sends an opening/closing signal to the electromagnetic valve to remotely control the opening/closing of the drain and/or inlet and/or water intake to which the electromagnetic valve is attached, in a cell-connected rainwater storage device. There it is,
A machine room including the control device and the pump connected by wire or wirelessly to the electromagnetic valve attached to each drain port of each cell is built in the M-th cell (2≦M≦N; k is a natural number), Alternatively, a cell-connected rainwater storage device built in the (N+1)th cell added to the cell-connected rainwater storage device. 7. The rainwater storage device according to claim 6, wherein the electromagnetic valves attached to the drainage outlets, inlets and water intakes of the N cells, the cleaning nozzles and the pump are all connected to the control device by wire or wirelessly and can be remotely controlled.
The control device,
An open/close signal is sent to an electromagnetic valve attached to the drain outlet of the kth cell to open the drain outlet and drain the water,
Sending an open/close signal to the electromagnetic valves attached to the inlet of the kth cell and the water inlet of the (k+1)th cell to open the inlet of the kth cell and the water inlet of the (k+1)th cell;
A pumping signal is sent to the pump, and the suction pipe of the pump sucks in the stored water from the suction port of the (k+1)th cell, and the discharge pipe of the pump supplies the water to the inlet of the kth cell;
Transmitting a cleaning signal to the cleaning nozzle connected to the inlet of the kth cell to operate the cleaning nozzle;
A cell-linked rainwater storage device capable of cleaning a water tank of a k-th cell with stored water in a (k+1)-th cell,
A cell-connected rainwater storage device comprising the pump in the machine room. The cell-connected rainwater storage device according to claim 6, wherein the machine room is equipped with a power source or a storage battery. A cell-connected rainwater storage device equipped with a solar panel outside the cell and capable of supplying electrical energy to the storage battery described in claim 8. The cell-connected rainwater storage device according to claim 1, wherein the external rainwater inlet provided in the first cell is connected to the rainwater separation device.
A 0th cell including an initial rainwater tank with an external rainwater inlet connected to the rainwater separation device and no communication port between the 0th cell and the 1st cell is added in addition to the N cells. A connected rainwater storage device,
In the 0th cell, the initial rainwater sorted by the rainwater separation device is introduced into the water tank of the 0th cell via the external rainwater inlet,
A cell-connected rainwater storage device, wherein external rainwater other than the initial rainwater sorted by the rainwater separation device is introduced into the first cell through the external rainwater inlet into the water tank of the first cell. A method for cleaning the inside of the water tank of the kth cell in the cell-connected rainwater storage system according to claim 2 , comprising the steps of:
(1) opening the drain outlet of the kth cell and draining all of the water stored in the water tank of the kth cell from the drain outlet;
(2) operating the pump, and supplying the stored water sucked by a suction pipe of the pump from the suction port of the (k+1)th cell to the cleaning nozzle connected by a discharge pipe of the pump to the inlet of the kth cell;
(3) the cleaning nozzle cleans the inside of the water tank of the kth cell with stored water sucked from the water tank of the (k+1)th cell;
(4) closing the drain of the kth cell;
A method for cleaning a cell-connected rainwater harvesting device, comprising: 5. A method for cleaning the inside of the water tank of the kth cell in the cell-connected rainwater storage system according to claim 4, comprising the steps of:
(11) the control device sends an opening/closing signal to an electromagnetic valve attached to the drain of the kth cell to open the drain of the kth cell;
(12) draining all of the water stored in the water tank of the k-th cell through the drain outlet of the open k-th cell;
(13) the control device transmits an opening/closing signal to electromagnetic valves attached to the inlet of the kth cell and the water inlet of the (k+1)th cell to open the inlet of the kth cell and the water inlet of the (k+1)th cell;
(14) the control device sending a pumping signal to the pump to operate the pump;
(15) supplying the stored water sucked by the suction pipe of the operated pump through the suction port of the (k+1)th cell to the cleaning nozzle connected to the inlet port of the kth cell through a drain pipe of the pump;
(16) a step in which the control device transmits a cleaning signal to the cleaning nozzle to operate the cleaning nozzle;
(17) the operating cleaning nozzle cleans the inside of the water tank of the kth cell with the stored water sucked from the water tank of the (k+1)th cell;
(18) sending an opening/closing signal to an electromagnetic valve attached to the drain of the k-th cell by the control device to close the drain of the k-th cell;
A method for cleaning the inside of a cell, comprising: A ceiling frame structure in which a rectangular ceiling frame having a skeleton ceiling frame assembled on four vertical and horizontal sides is divided into a plurality of rectangles by at least one auxiliary ceiling frame in the vertical and/or horizontal directions;
a frame structure having the same shape as the ceiling frame structure, the frame structure being composed of four rectangular skeletal frames and at least one auxiliary frame;
a side frame structure in which the four corners of the rectangular ceiling frame structure and the mounting frame structure and both ends of the auxiliary mounting frame are connected by a skeleton side frame and an auxiliary side frame, respectively;
A skeleton frame structure consisting of the above, and inside the skeleton frame structure,
A rectangular tank frame structure including one or more support frames that vertically connect an inner point of an auxiliary frame of the frame structure and an inner point of an auxiliary ceiling frame of the ceiling frame structure,
A rectangular parallelepiped rainwater tank is formed by fitting an external panel to a rectangle surrounded on all four sides by four frames, either a skeleton ceiling frame, a skeleton rack frame, an auxiliary ceiling frame, an auxiliary rack frame, a skeleton side frame, or an auxiliary side frame, and is connected to a rainwater separation device to inject rainwater and has a drainage outlet,
A panel-type cell-connected rainwater storage device in which an internal panel is fitted between the side frame and the support frame or between two of the support frames to form N (N is a natural number greater than or equal to 2) rectangular cells constituting the cell-connected rainwater storage device described in any one of claims 1 to 8 inside a rectangular rainwater tank.

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