JPH0699950B2 - Rainwater storage control method - Google Patents

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 flush water for toilets or car miscellaneous water. In particular, it relates to the control method of 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, it is not suitable for storage because dust and dust accumulated on the roof, etc., and sand, etc., become muddy water in the early stage of rainfall, so one of the switching valves installed in the middle of the water collection pipe is usually opened, 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 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 to drain the rainwater.

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. As in the case of rainfall detection, after collecting and storing rainwater after setting the timer for removing turbid water such as dust, if you want to increase the amount of storage even when the water is dry, 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]

THE INVENTION Problems to be Solved] intended to this invention attempt is made the catchment of rain water efficient, in the initial rain detection timer set time by performs a turbid water drainage of dust or the like, after the timer set time , Collecting rainwater and storing it,
Even if the rain stop detection is not immediately returned to the rain detection state, the rainwater collection status is used for the second rain detection or the rain stop detection due to intermittent rain within the required set time. Therefore, when the rainfall stop detection is continuously continued within the elapse of the required set time, the initial rain detection is restored for the first time.

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 remain dusty or sandy even if the rainfall is detected 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 aims at cost reduction by performing the above-mentioned efficient control and reducing the system configuration to the minimum necessary.

[0006]

The present invention comprises a method of collecting rainwater that has rained at a high position and storing it at a low position by letting a three-way motorized valve and a filtered water tank that are sequentially interposed flow down to store the rainwater. Rain to remove contaminants in the rainwater at the beginning of rainfall
After the start, the initial rainfall is the set value of the rainfall intensity meter (for example, 3 mm
When it is detected that the above ) has continued for a set time (for example, 3 minutes) by the timer , the detection signal causes the three
Actuates the mouth electric valve, switch the rain water collecting water passage from rainwater passage rainwater reservoir passage direction after filtration with a filtering water tank
As well as savings distillation, after rainfall stops, the required rainfall intensity setting following raining time set by the timer (e.g., 24:00
When the continuous detection is detected continuously, the three-way motorized valve is activated by the detection signal to switch the rainwater collecting passage to the rainwater storage tank from the rainwater storing passage to the rainwater draining passage. It proposes a rainwater storage control method.

[0007]

[Function] For rainfall detection, the equivalent amount of rainfall per hour (mm
/ H) is suitable for the rainfall intensity meter. The rainwater storage system stores rainwater that has rained at high positions such as roofs and removes dust and debris accumulated on the rain surface in the middle of a rainwater collection passage that stores it at a low value such as in the basement of a building. Or,
A means for switching between draining and draining, for example, a three-way mouth rainwater collecting electric valve is interposed, and a rainwater storage passage of the electric 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 which is rotated by a motor surrounded by a fine mesh, and which has an inner surface for fine dust such as dust in rainwater. The solids are separated and removed, and rainwater after filtration is pumped from above the upper end of the drum as a wash water after being pumped by a pump, and the solids removed after separation in the filtration tank are 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 preset time of a timer, 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 collection three-way electric valve is operated by the detection signal to switch the rainwater collection 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 determined that the rainwater can be stored by draining it through the rainwater collecting passage 5 and discarding it, that is, by the control box 6. When it is detected that the required rainfall intensity set value of the rainfall intensity meter 7 or more continues for a required timer set time continuously, 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, the original state is restored when the rain stops. As described above, by switching the three-way electric valve 4, the rainwater that has flowed into the rainwater storage passage 8 enters the filtered water tank 9, and the sand and the like are submerged and removed in the sand settling tank 9A at the inlet, and then finely divided 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 indicates that 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 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 and the inflow of rainwater is closed. If the rainwater becomes full or more due to a breakdown of the vault, etc., 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 the rain stops and the like falls below the required rainfall intensity set value and this state continues for the required timer setting time, it is detected that the rainwater collecting 3-way electric valve 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 setting 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 restored first.

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, 0 to 3
It is good to decide in 0 min. This is appropriately set according to the place and the like in a place where there is much dust and dirt, the time when there is a lot of sand and dust, and the weather conditions 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 further, the timer required set time that is equal to or less than the rainfall intensity set value may be determined as 0 to 24 h, which is also appropriately set depending on the weather condition, the time, the 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 rainwater can be stored immediately, for example, rainwater can be stored effectively. 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 3-way electric valve 5 Rainwater drainage passage 7 Rain 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 a three-way motorized valve and a filtered water tank that flow down to store the rainwater at a low position.
To remove Nigobutsu, after the start of rainfall, the initial rainfall is detected that the set value of the rain gauge is continued over a set time by the timer actuates the 3 Kataguchi electric valve by the detection signal, rain water collection the water channel is switched from the rainwater passage to the rainwater reservoir passage direction, as well as savings distillation was filtered through filtering water tank, after rainfall stops, the required rainfall intensity setting following rainfall shaped
When it is detected that the condition has continued for more than the set time by the timer, the three-way electric valve is activated by the detection signal and the rainwater collection passage to the rainwater storage tank is changed from the rainwater storage passage to the rainwater drainage passage. A rainwater storage control method characterized by switching.