JPH0571144A - Controlling method for rain water storage - Google Patents

Abstract

PURPOSE:To utilize rain water for miscellaneous use water by collecting rain water falling on the roof or the like of a building and storing it CONSTITUTION:At the time of a rainfall, when it is detected that the required intensity of rainfall which is measured by a rainfall intensity meter 7 and exceeds a set value continues continuously for a time above that set on a timer, a motor-operated valve 4 is actuated by the above detection signal to change over a rain water collecting passage 3 to a rain water storage bath 15 from a rain water discharge passage 5 toward a storage passage 8, and after the rain water is filtered through a water passing through bath 9, it is stored. In addition, when it is detected that the required intensity of rainfall below the set value continues continuously for a time above that set on the timer, the motor-operated valve is actuated to change over the rain water collecting passage 3 to the rain water storage bath 15 from the rain water storage passage 8 toward the rain water discharge passage 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to rainwater storage that collects and stores rainwater that has fallen on the roof of a building or the like, and uses the stored rainwater as toilet flush water or miscellaneous water for car washing and the like. In particular, it relates to the control method of the rainwater storage.

[0002]

2. Description of the Related Art Conventionally, as effective use of rainwater, rainwater collected on the roof of a building is collected, fine dust and suspended matter in the collected rainwater are filtered, and then stored in a rainwater storage tank. It is used as miscellaneous water. At this time, in the early stage of rainfall, dust and dust accumulated on the roof, sand, etc. are mixed and become muddy water, so it is not suitable for storage, and normally one of the switching valves installed in the middle of the water collection pipe is opened to Drain the rainwater mixed with dust, dust, etc., and after draining it for the required time, switch to the rainwater storage direction with the switching valve, perform the filtration with the filtering device on the way, and store the water. I'm running. As a control of this rainwater storage, after detecting rainfall, drainage of rainwater is performed by a switching valve until the required time by a timer elapses, and after the required time elapses, the switching valve is switched to send rainwater for storage. Are doing. Then, when the rainfall is stopped, the control valve is immediately switched to return to the initial state before the detection of rainfall, and the rainwater is drained.

However, the weather condition is not always constant, and it may rain again after a certain period of time after a rain stop, or intermittent rain detection and rain stop may be repeated. If rainwater is collected and stored after setting a timer for removing turbid water such as dust, as in the case of rainfall detection, if you want to increase the amount of storage even in the event of a shortage of water, the amount of rainfall will be lost. Therefore, it becomes inconvenient. Furthermore, it is not possible to find a system that simplifies the rainwater storage system by combining it with its control and makes it more efficient.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to efficiently collect rainwater. Drainage of muddy water such as dust is performed within the timer set time by the initial rainfall detection, and dust is collected within the timer set time. Drain turbid water, etc., and after the timer set time, collect rainwater and store it, and instead of returning to the state of detecting rainfall, it will be restarted due to intermittent rain within the required set time. For rain detection or rain stop detection of, the rainwater collection state is maintained and for continuous continuous rain stop detection within the required set time,
For the first time, it will return to the initial state of rainfall detection.

This means that if muddy water such as dust is drained once by the initial rainfall detection, the rainfall surface such as the roof will be treated as dust or sand even if the rainfall detection is performed again after the rainfall is stopped within the required set time. This is because it is not polluted and can be immediately collected and stored. Moreover, this method is intended to reduce the cost by performing the above-mentioned efficient control and reducing the system configuration to the minimum required.

[0006]

The present invention comprises a method of collecting rainwater which has rained at a high position and storing the rainwater at a low position by sequentially flowing a three-way motorized valve and a filtered water tank, which are stored at a low position. When it is detected that the required rainfall intensity set value by the rainfall intensity meter is continuously exceeded for the timer set time or longer, the electric valve is activated by the detection signal to drain the rainwater collection passage to the rainwater storage tank. After switching from the passage to the storage passage direction, after filtering in the filtered water tank, the water is stored, and when it is detected that the required rainfall intensity set value or less has been continuously continued for the timer set time or longer, the electrically operated valve is detected by the detection signal. Is operated to switch the rainwater collection passage to the rainwater storage tank from the rainwater storage passage to the drainage passage, and proposes a rainwater storage control method.

[0007]

[Function] For rainfall detection, the equivalent amount of rainfall per hour (mm
/ H) is suitable for rainfall intensity meter. The rainwater storage system stores rainwater that has accumulated on the rain surface in the middle of a rainwater collection passage that stores rainwater that has fallen in high places such as roofs at a low value such as in the basement of a building. Or,
A means for switching between draining and draining, for example, a 3-way rainwater collecting electric motor valve is interposed, and a rainwater storage passage of the electric motor valve is provided.
A filter tank for removing suspended matter such as fine dust in rainwater is provided, and this filter tank is, for example, a drum that is rotated by a motor that is surrounded by a fine mesh. The solid matter is separated and removed, and rainwater after filtration is pumped from above the upper end of the drum as washing water after being pumped by a pump, and the solid matter removed after separation in the filtration tank is removed and discharged. It stores rainwater filtered by a filtration tank.

As a control method of this rainwater storage system, when it is detected that the required rainfall intensity set value by a rainfall intensity meter or more, such as rainfall of rainwater, is continuously continued for a timer set time, the detection signal is used. , The rainwater collection 3-way electric valve was operated to switch the rainwater collection passage to the rainwater storage tank from the drainage passage to the storage passage direction, and the required rainfall intensity set value or less was continuously maintained for the timer setting time. When this is detected, the rainwater collecting three-way electric valve is operated by the detection signal to switch the rainwater collecting passage to the rainwater storage tank from the storage passage to the drainage passage.

[0008]

[Example] In FIG. 1, rainwater 2 that has fallen on a roof 1 of a building located at a high position is collected, flows down through a rainwater collection passage 3, and is operated on the initial roof by a three-way motorized valve 4 interposed in the middle. In order to prevent the storage of dust and dirt, it is necessary to drain the wastewater through the rainwater collection passage 5 and discard it to collect the collected rainwater, that is, the control box 6, When it is detected that the required rainfall intensity set value of the rainfall intensity meter 7 or more continuously continues for the required timer setting time, the rainwater drainage passage 5 is switched to the rainwater storage passage 8 by switching the three-way electric valve 4.

If the rainfall intensity falls below the set value within the required timer setting time, for example, when rain stops, the original state is restored. As described above, by switching the three-way opening motor-operated valve 4, the rainwater that has flowed into the rainwater storage passage 8 enters the filtered water tank 9, removes sand and the like by the sand settling tank 9A at the inlet, and then removes fine particles. When the water level of the filtered water from which solid matter is separated rises and the required water level is detected by the water level detector 11, the detection signal, By moving the motor 12 and rotating the rotary filter 10, the filtered water sucked up by the pump 13 is sprayed from above the upper end of the rotary filter 10 to separate and remove solid matter adhering to the fine mesh. And then discharge. When a failure occurs due to clogging of the rotary filter 10 or when the rainwater storage tank is full, the collected rainwater is turned on at the inlet of the filtration tank 8.
Discharge from the buffalo tube 14.

The rainwater storage tank 15 has a filter tank 8 at its inlet.
A valve tap valve 16 is provided at the end of the passage flowing down from
When the rainwater flowing down becomes full in the rainwater storage tank 15, the ball-up valve 16 is closed by the buoyancy of the ball to close the inflow of rainwater. If the rainwater becomes full or more due to a breakdown of the valve tap or the like, it is drained by the overflow pipe 17. Then, the water is pumped up by the pump 18 in the rainwater storage tank 15 and is used as miscellaneous water such as toilet wash water and car wash.

Next, when it is detected that the required rainfall intensity has become less than the required rainfall intensity setting value such as when the rain has stopped, and this state continues for the required timer setting time, it is detected that the rainwater collecting three-way electric valve is used. 4 is operated to switch the rainwater collection passage to the rainwater storage tank 15 from the storage passage to the rainwater drainage passage 5,
Return to the state before the initial rainfall. If there is rainfall above the required rainfall intensity set value within the required timer setting time, the 3-way solenoid valve 4
Is maintained as the rainwater storage passage 3, and the timer setting time is returned to the beginning.

As a rainfall set value for rainfall detection, 2-5 mm /
h, preferably 3 mm / h is suitable, and as a continuous timer-required setting time equal to or more than the rainfall intensity setting value,
It is good to decide in 0 min. This is appropriately set depending on the place and the like in a place where there is a lot of dust and dirt, the time when there is a lot of sand and dust, and the weather condition and time such as the rainy season.

Next, as the rainfall intensity set value for stopping the rainfall, 1
˜3 mm / h is suitable, and the timer required set time that is less than or equal to the rainfall intensity set value may be set to 0 to 24 h, which is also appropriately set according to the weather condition, time, condition, and the like.

[0014]

According to the present invention, after the rainfall is detected by the rainfall intensity meter, the dust and dirt contained in the initial rainfall are discharged, and then the storage is performed and the rainfall is stopped. When re-rainfall occurs within the required time, the rainfall area is kept clean, so that rainwater can be stored immediately, for example, by storing rainwater immediately. Moreover, since the system that also serves as this control is simplified, there are few problems of failure, maintenance is easy, and cost is reduced.

[Brief description of drawings]

FIG. 1 is a systematic diagram of the method of the present invention.

FIG. 2 is a control system diagram of the method of the present invention.

[Explanation of symbols]

 3 Rainwater collection passage 4 3 way electric valve 5 Rainwater drainage passage 7 Rainfall intensity meter 8 Rainwater storage passage 9 Filtration water tank 15 Rainwater storage tank

Claims (1)

[Claims] 1. A method of collecting rainwater that has rained at a high position and sequentially storing three-way motorized valves and a filtered water tank that flow down to store the rainwater at a low position. When it is detected that the set value or more has been continuously continued for the set time or longer, the electric valve is activated by the detection signal, and the rainwater collection passage to the rainwater storage tank is switched from the rainwater drainage passage to the storage passage direction. Then, after filtering the water in the filtered water tank and storing it, when it is detected that the required rainfall intensity set value or less is continuously continued for the timer set time or longer,
A rainwater storage control method, characterized in that the electric valve is operated in response to the detection signal to switch the rainwater collection passage to the rainwater storage tank from the rainwater storage passage to the drainage passage.