JP4653002B2 - Multipurpose rainwater storage tank and multipurpose rainwater storage device - Google Patents

Description

The present invention relates to a multipurpose rainwater storage tank and a multipurpose rainwater storage device that can cope with a plurality of uses well and have a function of switching the usage use such as water use and flood control in addition to a heat exchange function.

  In recent years, the water retention capacity of the earth has decreased due to deforestation, and disasters such as flash floods and water shortages have increased. As a preventive measure, rainwater storage tanks (Patent Document 1) that temporarily store rainwater during heavy rain have attracted attention. . In addition, a method has been proposed in which the water stored in the rainwater storage tank is used for toilets, washing, car washing, watering for rooftop greening, etc. (Patent Document 2). In addition, a method of using geothermal heat (about 15 ° C. throughout the year) is proposed in which air is flowed inside or below the underground rainwater storage tank to exchange heat, and the air after the heat exchange is used for air conditioning of a house (patent 15% throughout the year). References 3, 4). Furthermore, a rainwater storage tank using a plurality of tanks, a water collection tank, a filtration tank, a sterilization tank, and a storage tank, has been proposed (Patent Document 5).

Japanese Patent No. 1739598 JP 2003-105883 A Japanese Patent Laid-Open No. 9-292153 JP-A-9-137478 Japanese Patent No. 3574400

  Since the conventional rainwater storage tank is composed of one room, for example, if the rainwater storage tank is filled for watering, rainwater cannot be stored when there is a heavy rain. Also, it is conceivable that a plurality of rainwater storage tanks are provided and used separately for the purpose of actively using the rainwater stored in the rainwater storage tank and for disaster countermeasures, but this is not feasible due to problems such as cost.

  Rainwater storage tanks that use multiple tanks, such as water collection tanks, filtration tanks, sterilization tanks, and storage tanks, can quickly store a large amount of rainwater during torrential rain due to the narrow water conduits that connect each tank. In addition, it is difficult to change the use for each tank because water supply and drainage cannot be performed for each tank.

  In addition, when multiple rainwater storage tanks are installed, the amount of water supplied to each rainwater storage tank varies depending on the installation location (topography). However, there were about half of the storage tanks, and there was a problem that storage efficiency was poor. In addition, when water in the storage tank is sprinkled, if the storage tank near the water spraying place becomes empty, the water in the storage tank in the remote area will be used, making it difficult to use the water in the storage tank. However, there is a problem that the facility cost is high and the watering workability is lowered.

Recently, due to demands for reducing the operating costs of air conditioning systems, heat exchange using underground rainwater storage tanks has also been considered, but heat exchange applications that efficiently exchange heat with underground heat Development of a rainwater storage tank and a multipurpose rainwater storage apparatus using the same that can be combined with other water use and flood control applications has been desired.
Therefore, the present invention has a heat exchange function that uses geothermal heat, and at the same time, a multipurpose rainwater storage tank that can satisfactorily support a plurality of uses such as water use and flood control, and a multipurpose rainwater storage that can efficiently perform water supply and sprinkling operations. The purpose is to provide a device.

The invention according to claim 1 is divided into two chambers in which the water supply and drainage can be independently performed by a partition plate, and one of the two chambers is used for heat exchange for always filling a predetermined amount of stored water. It is a multi-purpose rainwater storage tank used for either middle water applications where the amount of stored water varies or other flood control applications where the other rooms are always empty.

The invention according to claim 2 is a heat exchange application in which the interior is partitioned into three or more chambers that can be independently supplied and drained by a partition plate, and at least one of the three or more chambers always satisfies a predetermined amount of stored water. It is a multipurpose rainwater storage tank that is used for one or both of a middle water use in which the amount of stored water is varied and a flood control application that is always empty.

The invention according to claim 3 is the multipurpose rainwater storage tank according to claim 1 or claim 2, wherein any room other than the heat exchange application is used to control the use of the room by storing and discharging the stored water. It is a multipurpose rainwater storage tank that can be switched to either use or flood control.

According to a fourth aspect of the present invention, in the multipurpose rainwater storage tank according to any one of the first to third aspects, in the event of an emergency, the water in the heat exchange use chamber is discharged to provide a heat exchange use chamber. Is a multipurpose rainwater storage tank that can be switched to flood control.

According to a fifth aspect of the present invention, any one of the first to fourth aspects, wherein the water supply / drainage and the use switching of the plurality of chambers of the multipurpose storage tank are performed by operating a water supply pump, a drainage pump, a water supply valve, and a drainage valve. It is a multipurpose rainwater storage apparatus which has a multipurpose storage tank of description.

The invention described in claim 6 is at least one multi-purpose rainwater storage tank having three rooms for heat exchange use, middle water use, and flood control use, and another multi-purpose rainwater having at least two rooms for middle water use and flood control use. In a multipurpose rainwater storage device comprising a plurality of rainwater storage tanks having a storage tank, a multipurpose rainwater in which at least two types of chambers for the same purpose of a plurality of different multipurpose rainwater storage tanks, each of which is used for middle water use and flood control use, communicate with each other. It is a storage device.
Specifically, rooms of the same use such as heat exchange use, multiple water use, flood control use, etc. of multiple multi-purpose rainwater storage tanks communicate with each other, or rooms of mid-water use and flood control use communicate with each other. This is a multipurpose rainwater storage device using a plurality of multipurpose rainwater storage tanks. In the present invention, at least one multi-purpose rainwater storage tank is provided with chambers for three purposes of heat exchange use, intermediate water use, and flood control application, but the remaining multipurpose rainwater storage tanks are used for intermediate water use and flood control use. As long as a room is provided, the room for heat exchange may or may not be provided. Normally, there may be two rooms for heat exchange, but one room is simpler because the configuration of the heat exchange system of the multipurpose rainwater storage device is simpler.

The multipurpose rainwater storage tank of the present invention is internally partitioned into two chambers by a partition plate, the two chambers can be independently supplied and drained, and one of the two chambers always heats the stored water to a predetermined amount. Since it is used for the exchange use and the other room is used for either the intermediate water use or the flood control use for changing the amount of stored water, it can cope with a plurality of uses well.
Since the multipurpose rainwater storage tank of the present invention is divided into a plurality of chambers and used for a plurality of uses including geothermal use, a single rainwater storage tank can perform a plurality of functions, saving space, reducing equipment costs, etc. Can be planned.

Further, the multipurpose rainwater storage tank of the present invention is internally partitioned into three or more rooms by a partition plate, and each of the three or more rooms can be independently supplied and discharged, and at least one of the three or more rooms. Is used for heat exchange applications that always fill a predetermined amount of stored water, and other rooms are used for one or both of middle water applications where the amount of stored water is varied or flood control applications that are always emptied. It can respond well to the use of.

Furthermore, the multi-purpose rainwater storage device of the present invention can switch the use of the room from the intermediate water use to the flood control use, and from the flood control use to the intermediate water use by storing and discharging the stored water in the room other than the heat exchange use. It is. In normal times, there are two rooms for medium water use, and in case of heavy rain, the room for flood control can be changed to two rooms, etc., so it can be changed from the beginning of the room use to medium water use and water use. The volume of the chamber can be doubled or tripled by switching the room of the multipurpose rainwater storage tank, compared to the case of the rainwater storage tank. Thus, since the storage load (capacity) of the storage tank can be set to be large depending on the situation, as a result, the entire multi-purpose rainwater storage tank is compared to a rainwater storage apparatus that uses a rainwater storage tank for fixed use. Even if the load is small, the room load required at that time can be increased.

  The water supply / drainage of the multiple chambers enables the water supply pump, drainage pump, water supply valve, drainage valve to be operated remotely, and switching between applications enables efficient and safe water supply / drainage operations during torrential rains. .

The multipurpose rainwater storage device of the present invention has at least one multipurpose rainwater storage tank having three rooms for heat exchange use, middle water use, and flood control use, and another multipurpose rainwater storage having at least two rooms for middle water use and flood control use. In a multi-purpose rainwater storage device comprising a plurality of storage tanks having tanks, at least two types of chambers for intermediate water use and flood control use are mutually connected (communication) in a state where water can pass through, and the heat exchange application At least one multipurpose rainwater storage tank having three rooms for medium water use and flood control use is used for heat exchange, and the other room and multipurpose rainwater storage tank is at least one use for intermediate water use or flood control use In addition to being able to satisfactorily cope with a plurality of uses for intermediate water use and flood control, it is possible to further increase the amount of water stored for use in intermediate water use and flood control. Further, in the present invention, it is not always necessary to connect the storage tanks partitioned into the respective chambers, but an auxiliary tank can also be connected, whereby only the necessary storage amount of the chambers can be increased.

In the multipurpose rainwater storage apparatus of the present invention, when there are three or more multipurpose rainwater storage tanks and a plurality of middle water use rooms can be provided, one room is used for heat exchange, and the other two rooms One can be separated from the other room for water use or flood control use and used for a room dedicated to drinking water. In that case, in order to prevent contamination of drinking water, it is desirable that the water supply chamber and the water supply pipe are dedicated chambers that can also be used for other purposes, and the inside is double sealed.

Since the multipurpose rainwater storage device of the present invention can communicate with each other in a state where a plurality of multipurpose rainwater storage tanks can be passed, each rainwater storage tank can be handled collectively. Therefore, water use and flood control including geothermal use can be performed efficiently.

Hereinafter, the present invention will be specifically described with reference to the drawings. Note that repeated explanation of the reference numerals is omitted.
The multipurpose rainwater storage device 20 shown in FIGS. 1 (a) and 1 (b) is internally partitioned into two chambers by a partition plate 2, and heat in which one of the two chambers 3a always fills a predetermined amount of stored water. It is used for replacement purposes, and the other chamber 3b is used for middle-water usage in which the amount of stored water is varied.

  In the multipurpose rainwater storage device 20 of the present invention, a water supply pipe 4 is arranged on the upper side, and a branched water supply pipe 4a is provided for each of the chambers 3a and 3b. The amount of water supplied to each of the chambers 3a and 3b can be controlled by operating an on-off valve 5 provided in the small diameter water supply pipe 4a. The inlet 4 b of the water supply pipe 4 is connected to the fence 8 of the house 7.

  A drain pipe 9 is disposed below the rainwater storage device 20, and a small drain pipe 9a is provided for each of the chambers 3a and 3b. The amount of drainage in each of the chambers 3a and 3b can be controlled by operating the drainage on / off valve 10 provided in the drainage small-diameter pipe 9a.

  Since the outlet 9b of the drain pipe is located on the drain groove 14, each chamber 3a, 3b can be easily emptied by operating the drain on / off valve 10. Therefore, the usage can be easily switched to a plurality of usages such as heat exchange, water use, and flood control, and indoor cleaning and inspection can be performed efficiently.

  In FIG. 1 (a), reference numeral 12 denotes an on-off valve for water utilization, and a hose (not shown) is connected to the end of the on-off valve 12, and the rainwater 13 in the middle water use chamber 3b is used for watering or the like. 6 is a water supply pump, 11 is a drainage pump, and the two chambers 3a and 3b can perform water supply and drainage independently. The water supply pump 6 is not necessary when drawing rainwater using a head, but can efficiently supply water when used to supply clean water to the rainwater storage tank.

The multipurpose rainwater storage tank 1 shown in FIG. 2 (a) is divided into two chambers by a partition plate 2, and one chamber 3a of the two chambers is used for heat exchange that always fills a predetermined amount of stored water. The other chamber 3c is used for flood control in which the stored water is always empty. The two chambers can be independently supplied and drained.

The multipurpose rainwater storage tank 1 shown in FIG. 2 (b) is internally partitioned into three chambers by a partition plate 2, and one of the three chambers 3a is used for heat exchange applications in which the stored water is always filled, The other two chambers 3b and 3c are used for middle-water use for changing the amount of stored water and for flood control use that is always empty. The three chambers can perform water supply and drainage independently.

The multipurpose rainwater storage tank 1 shown in FIG. 2 (c) is internally partitioned into three chambers by a partition plate 2, and one of the three chambers 3a is used for heat exchange where the stored water is always filled with a predetermined amount. In addition, the other two chambers 3b are used for a middle water application for changing the amount of stored water. The three chambers can perform water supply and drainage independently.

The inside of the multipurpose rainwater storage tank may be partitioned vertically or horizontally. The junction between the partition plate and the multipurpose storage tank may be a welded structure, or a structure in which the partition plate is fixed to the inner frame with a waterproof rubber packing provided at the partition plate mounting position inside the multipurpose rainwater storage tank. Also good.

In the present invention, the opening / closing operation of the opening / closing valve is performed automatically since the multipurpose rainwater storage tank is buried underground, and of course, the operation can be switched to manual operation as necessary.

Each room | chamber of the multipurpose rainwater storage tank of the multipurpose rainwater storage apparatus of this invention is used for at least 2 uses among a heat exchange use, a middle water use, and a flood control use. In an emergency, all rooms can be used for the same purpose.

  If it is possible to automatically open and close the valve and operate the pump on the operation panel of the multipurpose rainwater storage device before it starts to rain, before the disaster damage such as when a heavy rain warning is issued, It is also possible to prepare for a typhoon by draining the part normally used for middle-water use and making it for flood control. Furthermore, if the heat exchange operation is stopped, all rooms can be emptied so that a large amount of rainwater can be supplied. In this way, when the stored water in a specific room of the multipurpose rainwater storage device is drained and used, the opening and closing of the valve is linked to the rain sensor, and when the rainfall reaches a predetermined value, the drain opening / closing valve If it can be automatically opened and closed, drainage work can be performed accurately.

The multipurpose rainwater storage tank of the present invention is buried underground, and the stored water in the heat exchange use room is used for air conditioning by exchanging heat with geothermal heat. When the stored water in the middle water use room is used for beverages, tap water is stored. In this case, the water supply pipe, the partition plate, and the like are separated from other use rooms for hygiene purposes.

  The middle water use room stores rainwater and uses it for watering. The flood control room is always empty to prepare for rainfall. When the rainwater is insufficient, the tap water can be used as the stored water for the heat exchange use and the middle water use.

Figure 4 multipurpose rainwater storage device 20 three-chamber 3a shown in (b), 3b, 2 pieces of the multipurpose rainwater storage tank 21 is partitioned into 3c and two rooms 3b, 1 single multipurpose rainwater storage tank 21 which are partitioned to 3c Are connected for each room of the same application, and each room of the three multipurpose rainwater storage tanks 21 can be efficiently used for heat exchange applications, intermediate water applications, and water utilization applications.

The multipurpose rainwater storage device 20 shown in FIG. 4 (b) includes two rooms of one multipurpose rainwater storage tank 21 partitioned into three chambers 3a, 3b, and 3c, and one unit partitioned into two chambers 3b and 3c. The two rooms of the rainwater storage tank 21 communicate with each other for the same use, and the two rooms of the two multipurpose rainwater storage tanks 21 can be efficiently used for the middle water use and the water utilization use.

BRIEF DESCRIPTION OF THE DRAWINGS (b) Side explanatory drawing which shows 1st Embodiment of the multipurpose rainwater storage apparatus of this invention, (b) Plane explanatory drawing. (A)-(c) is each plane explanatory drawing which shows the 2nd-4th embodiment of the multipurpose rainwater storage tank of this invention. (A), (b) is each plane explanatory drawing which shows other embodiment of the multipurpose rainwater storage apparatus of this invention.

Explanation of symbols

1, 21 Multipurpose rainwater storage tank 2 according to the present invention 2 Partition plate 3 Room 3a partitioned by partition plate 3a Heat exchange use chamber 3b Middle water use chamber 3c Flood control use chamber 4 Water supply pipe 4a Water supply small diameter tube 4b Water supply pipe inlet 5 Water supply On-off valve 6 Water supply pump 7 House 8 樋 9 Drain pipe 9a Drained small pipe 9b Drain pipe outlet 10 Drain on-off valve 11 Drain pump 12 Water-use on-off valve 13 Rain water 14 Drain groove 20 Multipurpose rainwater storage of the present invention Open / close valve for connecting device 22 connecting pipe 23

Claims (6)

The interior is partitioned into two chambers where the water supply and drainage can be performed independently by a partition plate. One of the two chambers is used for heat exchange that always fills a predetermined amount of stored water, and the other chambers vary the amount of stored water. Multipurpose rainwater storage tank used for either middle water use or flood control use that is always empty. The interior is partitioned into three or more rooms where the water can be supplied and drained independently by a partition plate, and at least one of the three or more rooms is used for heat exchange applications in which the stored water is always filled with a predetermined amount. A multi-purpose rainwater storage tank used for one or both of a middle-water use or a flood-control use in which the room of the room fluctuates the amount of stored water. The multipurpose rainwater storage tank according to claim 1 or 2, wherein an arbitrary room other than the heat exchange application is switched to a middle water use or a flood control use by storing and discharging the stored water. Multipurpose rainwater storage tank capable of. In the multipurpose rainwater storage tank according to any one of claims 1 to 3, in an emergency, water in a heat exchange use chamber can be discharged and the heat exchange use chamber can be switched to a flood control use. Multipurpose rainwater storage tank. The multipurpose rainwater storage tank having a multipurpose rainwater storage tank according to any one of claims 1 to 4, wherein the water supply and drainage and the use of the plurality of chambers of the multipurpose storage tank are switched by operating a water supply pump, a drainage pump, a water supply valve, and a drainage valve. Rainwater storage device. Heat exchange applications, gray water applications, at least one multi-purpose and rainwater storage tank, gray water applications having three chambers of flood control application, a plurality of multi-purpose rainwater storage with other multi-purpose rainwater storage tank having at least two chambers of flood control application In the multipurpose rainwater storage apparatus comprising tanks, a multipurpose rainwater storage apparatus in which at least two types of chambers of the same use for a plurality of different multipurpose rainwater storage tanks that are different from each other are in communication with each other.

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