JPH09151492A - Spring water utilization device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use underground spring water as reclaimed water, without being discharged to a sewage. SOLUTION: A rain water tank 10 and a spring water tank 30 are connected to each other through a water supply pipe 32 via a filter 34 and a water supply valve 31, thereby forming a spring water utilization device for using spring water as reclaimed water, together with rain water. Also, the filter 34 is laid between the water supply valve 31 and the spring water tank 30. Furthermore, both tanks 10 and 30 are fitted with level gauges 13 and 33 for controlling a feedwater valve 11 and the water supply valve 31. Also, the rain water tank 10 is provided with a potable water feed pipe 12 via the feedwater valve 11. When the rain water tank 10 is installed at a position lower than the spring water tank 30, the water supply valve 31 is fitted to the water supply pipe 32. When the rain water tank 10 is installed at a higher position, a water supply pump is connected instead to the water supply pipe 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for utilizing spring water as rainwater together with rainwater in a building or the like.

[0002]

2. Description of the Related Art Conventionally, rainwater is appropriately stored in a rainwater storage tank using a double pit and is used as tap water for a system for utilizing tap water such as cooling and heating water, industrial water, and flush water for flush toilets. . Although it cannot be used as drinking water, it is possible to reduce the amount of tap water used by using rainwater as tap water for such purposes. Given the serious problem of water shortage as in recent years, it is urgent to expand such a water supply system. On the other hand, an underground double wall is provided in the basement of a building such as a building in order to prevent infiltration of water into the underground part. Groundwater and the like flowing through the double wall are temporarily stored in a spring tank and then discharged into the sewer.

[0003]

However, since the water stored in the spring water tank is mainly underground spring water, it can be sufficiently used as tap water. It is useless to temporarily store the water in a spring tank and then discharge it to the sewer as it is. In particular, in an area where a certain amount of spring water such as underground spring water can be secured, it is necessary to use such underground spring water as a middle water supply and reduce the amount of water supply used within a range that does not cause land subsidence or environmental damage. Then, this invention is proposed in view of the said subject, and an object of this invention is to provide the technique which utilizes underground spring water as sewer water, without discharging it to sewer.

[0004]

In order to solve the above-mentioned problems, the invention according to claim 1 is a device for utilizing spring water as rainwater together with rainwater, which is lower than a spring water tank installation location. The rainwater storage tank, which is installed in the water supply pipe through the water supply valve, is connected to the spring tank via the filter and the water supply valve, and the filter is connected to the water supply valve and the spring tank. And a water level gauge for controlling the water supply valve and the water supply valve in both tanks. The invention according to claim 2 is a device for utilizing spring water as rainwater together with rainwater, which is installed at a higher place than the spring tank,
A rainwater storage tank in which a water supply water pipe is piped via a water supply valve, a water pipe connection to a spring tank via a filter and a water pump, and the filter is provided between the water pump and the spring tank, and A water level gauge was provided in both the tanks to control the water supply valve and the water supply pump.

With this structure, the spring water stored in the spring water tank can be fed to the rainwater storage tank incorporated in the system for utilizing the tap water and used as tap water. In particular, in the above configuration, depending on the height of the installation position of the rainwater storage tank and the spring water tank, if natural water can be sent through the water supply valve, if forced water supply such as pumping is necessary, the water is sent through the water pump. A water pipe was connected. Also, both the rainwater storage tank and the spring water tank are equipped with water level gauges for controlling water supply valves and water supply pumps, so open and close the water supply valves at the water levels suitable for both tanks or start the water supply pump.・ Proper water supply can be performed by stopping. For example, by connecting the water level gauge to a control means such as a water supply valve or a water supply pump,
Automatic control of water supply valves and water supply pumps can be performed based on the water level information from the water level gauge.

Further, since the water supply water supply pipe is connected to the rainwater storage tank through the water supply valve controlled by the water level gauge in the same manner as described above, the amount of water that can be used as intermediate water is reduced by any chance. Even in such a case, water can be supplied from the water supply system to maintain the constant function of the water supply system. Further, when connecting the water supply pipe, a filter is provided between the water supply valve or the water supply pump and the spring tank so that the water supply valve or the water supply pump can be prevented from being clogged with mud or the like in the underground spring water. Furthermore, the invention according to claim 3 of the present invention is the invention according to claim 1 or 2, wherein a water collecting pipe is provided from the spring tank to the ground.
Therefore, in an area with a large amount of spring water, the abundant spring water can be positively used as medium water. For example, use rainwater mainly when the amount of rainfall is large, and use underground springs mainly when the amount of rainfall is small, to maintain the water supply system from the water supply system as much as possible and to maintain it constantly. be able to.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. Rainwater storage tank 10 used in the present invention
Is formed in a storage tank using a conventional double pit. The pipe end of the rainwater pipe 20 is opened in the rainwater storage tank 10 so that the rainwater collected from the roof or the like flows in. Although not shown, the rainwater storage tank 10 is
For heating and cooling of buildings, or for flush water in flush toilets,
It is installed by piping connection to the conventional water supply system. Further, the rainwater storage tank 10 has a water supply valve 11
The water supply water supply pipe 12 is connected via the. The water supply valve 11 is connected to the control means A so that water can be appropriately supplied depending on the water level of the rainwater storage tank 10 as described later. In addition, a water level gauge 13 connected to the control means A is provided in the rainwater storage tank 10, and an overflow pipe 14 is also provided to prevent overflow.

The rainwater storage tank 10 is a spring water tank 30.
And a water supply pipe 32 via a water supply valve 31. A water level gauge 33 connected to the control means A is provided in the spring tank 30, and a water supply valve 3 is provided in the water supply pipe 32.
A filter 34 is provided between 1 and the spring tank 30 so as to remove mud and the like in the spring water. In addition, the spring tank 30
An overflow pipe 35, which is formed as a conventional concrete structure in the basement of a building or the like, is provided to prevent overflow. The above-mentioned structure is a case where the rainwater storage tank 10 is installed at a lower position than the spring tank 30, as shown in FIG. Installation location of rainwater storage tank 10 is spring tank 3
If it is the same as or higher than the installation location of 0, as shown in FIG.
It should be replaced with 0.

In this way, in the spring water utilizing apparatus of this embodiment, the water supply valve 11, the water supply valve 31 or the water supply pump 40 is constructed so that it can be automatically controlled based on the water level information of the water level gauges 13, 33. There is. In the spring water utilization device shown in FIG. 1, first, a lower limit water level L, an appropriate water level M, and an upper limit water level H in the rainwater storage tank 10 and the spring water tank 30 are set.
The set water level is the water supply valve 11 and the water supply valve 31.
Used as a guide when opening and closing. Incidentally, the appropriate water level M is set so that L <M <H as shown in FIG. In the rainwater storage tank 10 and the spring water tank 30 in the figure, the three water levels L, M, and H are simultaneously displayed by dotted lines.

In the control means A, when the water level measured by the water level gauge is the lower limit water level L, the proper water level M and the upper limit water level H, the water supply valve 11 or the water supply valve 31 is automatically opened and closed as follows. You can do it. When the water level of the rainwater storage tank 10 is lower than the proper water level M, the water supply valve 31 is opened to transfer the spring water from the spring water tank 30 into the rainwater storage tank 10, and the water level of the rainwater storage tank 10 becomes the proper water level M. It is supposed to send water to. Furthermore, when the water level of the spring water tank 30 becomes higher than the upper limit water level H, even if the water level of the rainwater storage tank 10 is higher than the proper water level M, the spring water tank 30
The water supply valve 31 is opened until the water level reaches the appropriate water level M so that water can be supplied into the rainwater storage tank 10.
The water supply to the rainwater storage tank 10 may be set until the water level of the spring tank 30 reaches the upper limit water level H.

When the water levels of the rainwater storage tank 10 and the spring water tank 30 are both lower than the lower limit water level L, the water supply valve 11 is opened in the rainwater storage tank 10 so that clean water is automatically injected. There is. The medium water utilization system incorporating the rainwater storage tank 10 can be maintained without stopping even if the amount of medium water cannot be secured due to a decrease in rainwater or underground spring water. In particular, when the tap water in the tap water utilization system is used for heating and cooling a building, or for washing water in a large number of flush toilets, such an automatic water injection function is indispensable. The water level changes in the water tank 10 and the spring tank 30 are detected by the water level gauges 13 and 33, and the water supply valve 11 is controlled by the control means A so that water can be automatically injected.

Although the above description is for the spring water utilization device shown in FIG. 1, the same applies to the spring water utilization device shown in FIG. 2, except that the water supply pump 40 is opened and closed instead of the water supply valve 31. It is just to start and stop. In the spring water utilization device shown in FIG. 1, since the spring water tank 30 is installed at a higher place than the rainwater storage tank 10, the water supply valve 3
Spring water is naturally fed into the rainwater storage tank 10 only by opening 1. However, in FIG. 2, the rainwater storage tank 10 is replaced by the spring tank 30.
Since it is installed at a higher place or at the same height, the water pump can be started to force the water supply for spring water supply. Further, in the above-described embodiment, as shown in FIGS. 1 and 2, the water level gauges 13 and 33 are used to automatically control the water supply valve 11 and the like. However, for example, building air conditioning, lighting, and the like are included. It may be a control incorporated in a centralized management mechanism by a computer or the like, as long as the water supply valve and the like can be automatically controlled by information from the water level gauge.

Further, the spring tank 30 of the above-mentioned embodiment is connected to the water collecting pipe, and as shown in FIG. 3, the spring water in the ground is positively drawn into the spring tank 30, and this is stored in the rainwater storage tank 10. You may be able to send water to. In the present embodiment, a water collecting pipe having a large number of small holes in the pipe wall is piped from the underground wall facing the wall of the block provided on the spring tank 30 toward the underground. The use of spring water may require guidance from local governments, but basically, as described above,
It is sufficient that the spring water collected by the water collecting pipe can be guided into the spring tank 30.

[0014]

INDUSTRIAL APPLICABILITY According to the present invention, underground spring water stored in a spring water tank can be sent to a rainwater storage tank and used as middle water in a system for utilizing sewerage in which a rainwater storage tank is incorporated. it can. The underground spring water stored in the spring tank can be used as intermediate water without being discharged directly into the sewer,
The water supply can be saved accordingly. Further, in an area where the seasonal variation of rainfall is large, it may be difficult to constantly maintain the system for utilizing the sewerage system only with rainwater. However, in the present invention, the underground spring water is used as an auxiliary means when the rainfall is low. It can be used as a water supply system, and the system for maintaining the water supply system can be maintained constantly. At the same time, it is possible to prevent an excessive amount of water saving due to a water shortage and a decrease in water pressure, and to secure an appropriate amount of intermediate water when used as washing water.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view of a spring water utilization device according to the present embodiment.

FIG. 2 is an explanatory cross-sectional view of the spring water utilization device according to the present embodiment.

FIG. 3 is a cross-sectional view showing a connection state between a spring tank and a water collection pipe.

[Explanation of symbols]

 10 Rainwater Storage Tank 11 Water Supply Valve 12 Water Supply Water Supply Pipe 13 Water Level Meter 30 Spring Tank 31 Water Supply Valve 32 Water Supply Pipe 33 Water Level Meter 40 Water Pump A Control Means

Claims (3)

[Claims] Claims: 1. A device for using spring water as rainwater together with rainwater, the rainwater being installed at a location lower than the location where the spring tank is installed and having a water supply pipe connected through a water supply valve. The storage tank is connected to the spring water tank via a filter and a water supply valve, and the filter is provided between the water supply valve and the spring water tank, and both the tanks are for controlling the water supply valve and the water supply valve. A spring water utilization device characterized in that a water level gauge is installed in the water. 2. A device for utilizing spring water as rainwater together with rainwater, the rainwater storage tank being installed at a higher place than the spring tank and having a water supply pipe connected through a water supply valve. Is connected to a spring tank via a filter and a water pump, and the filter is provided between the water pump and the spring tank, and both tanks have a water level for controlling the water supply valve and the water pump. A spring water utilization device characterized by having a meter. 3. The spring water utilization device according to claim 1, wherein a water collection pipe is provided underground from the spring water tank.