KR20200129797A - storage system of rainwater removed non-point source pollution of storm water pipeline - Google Patents

Abstract

The present invention relates to an apparatus for storing rainwater to purify a contaminant of rainwater in a rainwater pipe to use the same in an emergency. According to the present invention, in order to configure the apparatus for storing rainwater, which separates, from the rainwater pipe, rainwater including an initial non-point contaminant transferred through an underground rainwater path through a rainwater pipe in a rooftop of a building and the like, to purify and store the non-point contaminant and a contaminant so as to use the same in emergency, a separation discharge pipe is coupled to the rainwater pipe with the same size and is formed in each layer. Also, a portion of rainwater of the rainwater pipe is separately discharged to the separation discharge pipe to transfer the same to a septic tank so as to store purified rainwater in a tank unit. The tank unit is integrally formed by vertically and horizontally coupling several tanks, and allows rainwater introduced into an upper tank to fill a lower tank first so as to automatically fill the upper tank later. In addition, when the upper tank is separated from the tank unit, an outlet of a lower portion of the separated tank is automatically closed such that several persons divide several rainwater tanks in emergency and each floor of a high-rise building can separately store rainwater and use the same as domestic water in emergency.

Description

A device that stores rainwater for emergency use by purifying rainwater pollutants including non-point pollutants of rainwater pipes {storage system of rainwater removed non-point source pollution of storm water pipeline}

The present invention is to store rainwater that is configured to be used as an emergency by separating rainwater containing the first boiling point contaminants transferred from the rainwater pipe through the underground rainwater from the roof of a building, etc., to purify and store the boiling point pollutants and pollutants. Regarding the device, a rainwater separation and discharge pipe is coupled to a rainwater pipe of the same size, and a part of rainwater discharged to the stormwater pipe is separately discharged from the separate discharge pipe and transferred to a septic tank, and the purified rainwater is stored in a storage tank. Multiple small tanks are combined up and down and left and right to form an integral tank, and the rainwater flowing into the upper tank is filled from the lower tank to the upper tank, and the upper tank is separated from the tank. In case of an emergency, the outlet of the lower part of the separated tank is automatically closed so that several people can use multiple rainwater tanks in an emergency.In buildings such as high-rise buildings, rainwater is separately stored for each floor to use household water as an emergency. It relates to a device for storing rainwater so that it can be used as an emergency by purifying the pollutants of rainwater including non-point pollutants of the rainwater pipe.

A device for storing rainwater using a module-type tank is exemplified in the prior art 10-1783021 (assembleable modular rainwater storage device, hereinafter referred to as a conventional technology).

In the conventional technology, a main body forming a rainwater storage space therein and the main body are combined with a collecting pipe through which rainwater flows to receive rainwater into the rainwater storage space, and several main bodies are connected with a coupling protruding from the side of the main body. It can be seen that it is constructed so that it can be loaded by connecting it up, down, left and right in layers.

As described above, the conventional technology has the same purpose of loading by combining vertically and horizontally compared to the present invention, but the present invention is configured to accommodate rainwater in all tanks in the loaded state of the tank. have.

In general, the rainwater on the roof or roof is configured to be transferred to the underground rainwater through the rainwater pipe.

Since rainwater transferred to the rainwater pipe is transferred to the rainwater route, including the non-point pollution of the roof or roof, there is a problem that streams and river water are polluted by the rainwater transferred through the rainwater route, and in Korea, the rain falls concentrated in one season. For this reason, there is a water shortage in other seasons, and some rooftops store rainwater during the rainy season and provide it to the rooftop plants, but the rainwater on the roof consisting of most rooftops and slopes is discarded into streams like non-point pollutants. There is a problem of being polluted and wasting water.

Many people share the perception of rainwater recycling, but they share the perception that rainwater recycling requires a lot of cost.Therefore, there is a lack of facilities for recycling rainwater in society, so if water runs out of water pipes in an emergency, not only drinking water but also living water There is a problem in that there is no water to be used in the toilet, which can lead to a poor environment.

The present invention is designed to provide a device that completely differs in structure, means, and effect of a modular tank for storing rainwater as in the prior art, and to activate the recognition that rainwater can be recycled at low cost.

The present invention separates and purifies a part of rainwater including non-point pollutants, which is the first rainwater discharged to a multi-story rooftop or inclined roof rainwater pipe, for each floor, and then continuously stores them in several tanks of the tank part. Containing non-point pollutants of rainwater pipes configured to separate and use each tank for each group, and configured to seal the outlet of the tank at the moment the tank is separated from the tank, and prevent the discharge of non-point pollutants of rainwater discharged to the rainwater pipe. An object of the present invention is to provide a device that purifies rainwater pollutants and stores them for emergency use.

The excellent pipe according to the present invention is configured to form a separate separate discharge pipe that can be easily combined with the excellent pipe, and combine several separate discharge pipes according to the length of the excellent pipe.

Example; A separate discharge pipe is combined for each floor of a building, and a tank and a tank part are installed in each floor to store rainwater for some of the rainwater transferred to the rainwater pipe, and the necessary rainwater is stored and used in various places. There is this.

The separate discharge pipe is configured to form an arc along the inner wall so that rainwater transferred along the wall of the rainwater pipe is accommodated in the arc, and a discharge port is formed at any point of the arc to separate and transport rainwater received in the arc. It was configured to be able to.

In the structure of the separated discharge pipe as described above, since a small amount of first rainwater discharged to the storm pipe is discharged along the wall of the storm pipe, the first rainwater containing boiling point contaminants is accommodated in the arc of the separate discharge pipe, and the rainwater contained in the arc extends from the arc. It is configured to discharge and purify along the discharge pipe, and to prevent the first non-point pollutant from rainwater from being discharged to the stream.

When the rainwater discharged to the stormwater pipe increases as above and overflows the arc of the stormwater pipe, the rainwater, which is the first non-point pollutant, is discharged through the separate discharge pipe.Therefore, part of the rainwater afterwards is discharged through the discharge pipe of the arc, and the rainwater overflowing the arc is formed inside the arc. Most of the rainwater was discharged and transferred to the water pipe.

Rainwater discharged through the separate discharge pipe was transferred to a septic tank to be purified.

The septic tank is composed of glass to inspect the purification status. A space is formed under the first of the septic tank, activated carbon is excreted above the space, gravel is excreted on the activated carbon, sand is excreted on the gravel, and a sponge or sponge is placed on the sand. The non-woven fabric was excreted, and the first foreign material was separated from the fabric by covering the non-woven fabric, and the fabric was changed from time to time, or after removing the foreign material from the fabric, it was configured to be reused so that the foreign material did not interfere with drainage.

The formation of a space under the first of the septic tank is configured to determine the purification state of the purified water.

Rainwater purified in the septic tank was configured to be transferred to the tank of the tank.

The tank unit is configured to fill the upper tank by sequentially filling the lower tank from the top when several tanks are arranged vertically and horizontally and connected to accommodate water in the upper tank.

In the tank, a male and female coupling part was formed on the outside, but a female coupling part was formed on two sides, and a male coupling part was formed on the two sides, so that the tank was continuously connected back and forth, left and right, and was configured to be connected vertically.

The upper and lower coupling is configured such that the coupling protrusion formed at the lower portion of the tank is coupled to the coupling jaw protruding from the upper portion of the tank.

When the upper and lower tanks are combined by installing a valve at the bottom of each tank, the inlet of the lower tank is exposed to the outlet of the upper tank and is exposed above the outlet, and the valve formed at the outlet is pushed up and opened, so that rainwater from the upper tank can flow into the lower tank. When the upper tank is separated from the lower tank after the upper and lower tanks are filled with rainwater, the inlet of the lower tank is separated from the outlet of the upper tank, and the valve of the upper tank automatically descends to close the outlet and close the upper tank. Since it blocks the discharge of rainwater from the tank, each tank in the tank part filled with rainwater is separated and transported.

When a water level sensor is attached to an inlet of one of the upper tanks of the tank and the upper tank is filled with rainwater to the water level, the water level sensor is operated to operate the separate discharge pipe and the electric valve of the septic tank to close the discharge port of the separate discharge pipe and the discharge port of the storage tank. Thus, it was configured to block rainwater flowing into the tank.

When a collecting plate that forms a drain hole inserted into the inlet of the tank is covered on the upper part of the tank part, which is composed of several tanks, the drain hole of the collecting plate is inserted into the inlet of the tank and rainwater transferred from the septic tank is transferred to the collecting plate. It was configured to receive and transfer to several upper tanks of the tank part.

When the water collecting plate is coupled to the tank part, the upper part of the water level sensor installed at the inlet is configured to be exposed to the outside of the water collecting plate through the drain hole of the water collecting plate. Composed

The water collecting unit is configured to receive water from the septic tank, but forms a plurality of holes that connect with the inlet of the tank of the tank unit so that rainwater from the collecting unit can be simultaneously transferred to the tank.

The upper surface of the tank is constructed so that the water from the drain port, which is instantly discharged when the upper tank is separated from the lower tank, can be accommodated on the upper surface of the lower tank by raising the coupling jaw.

There is an effect of purifying contaminants of rainwater, including boiling point contaminants of rainwater pipes according to the present invention, so that it can be easily used as living water in case of an emergency.

The device for storing rainwater according to the present invention separates, discharges, and purifies the non-point pollutants that are first discharged from the rooftop or inclined roof when it rains, thus preventing contamination of agricultural water and preventing contamination of the water source. It has the effect of reducing the purification cost and at the same time cleanly protecting the environment.

Since rainwater discharged through rainwater at a high location has potential energy, it has the effect of storing rainwater without using additional energy to purify rainwater or store purified rainwater.

When rainwater is received in the upper tank of the tank part loaded with multiple tanks, the rainwater can be automatically filled to the lower tank. When each tank is separated from the tank part, the separated tank outlet is automatically closed to prevent rainwater loss. I can.

1 is a schematic diagram of the present invention
2 is an overall conceptual diagram of the present invention
3 is a detailed view of the separate discharge pipe of the rainwater pipe
4 is a detailed view of a rainwater tank
5 is a separation relationship diagram of the rainwater tank
6 is a configuration diagram of the tank part

In the present invention, a part of rainwater including non-point pollutants on the rooftop (13-1) is separately purified and stored in a tank unit (12-1) in which several tanks (12) are integrated, and each tank (12) in case of emergency It is to provide a device that purifies the contaminants of rainwater including the boiling point contaminants of the rainwater pipe 13 configured to be separated and used as living water and stores them for emergency use.

Separation discharge pipe 11 according to the present invention is configured to be combined with the excellent pipe (13).

The separate discharge pipe 11 has an arc 15 formed to protrude along the inner wall thereof as shown in FIG. 3, and an outlet 16a is formed at one point of the arc 15.

The arc 15 protruding from the inner wall of the rainwater pipe 13 is configured to accommodate rainwater flowing in along the inner wall of the rainwater pipe 13, and in particular, a pollutant source such as the rooftop 13-1 first flows in like rainwater. Since the amount of rainwater is small, it is configured to initially receive non-point pollutants from rainwater in arc 15, referring to flowing along the inner wall of rainwater pipe (13), and separate rainwater including non-point pollutants flowing into arc (15) It is characterized in that it is configured to be discharged through the discharge port 16a of (11).

As the amount of rainwater flowing into the rainwater pipe 13 increases, the rainwater overflowing the arc 15 is continuously transported downward, and a part of the rainwater is separated and discharged to the outlet 16a of the next separate discharge pipe 11.

Rainwater passing through the separate discharge pipe 11 of the various stages is configured to be transferred to the rainwater passage 17.

An electric valve 24a is mounted to limit rainwater discharged to the outlet 16a of the separate discharge pipe 11 formed in connection with the arc 15.

Rainwater discharged through the discharge port 16a of the separate discharge pipe 11 is configured to be transferred to the septic tank 14.

The septic tank 14 is configured to remove foreign matter from rainwater.

The septic tank 14 is configured to be transparent, so that the purification state can be measured, but there is no need to limit it to transparency.

The septic tank 14 has a predetermined space layer 23 formed at the bottom of the septic tank 14 to identify the condition of the purified rainwater.

On the space layer 23, an activated carbon layer 23-1 is formed.

A sand layer 23-3 is formed on the activated carbon layer 23-1.

A gravel layer 23-2 is formed on the sand layer 23-3.

On the gravel layer 23-2, a nonwoven fabric layer 23-4 is formed.

A sheet layer 23-5 is formed on the nonwoven fabric layer 23-4.

Rainwater is configured to separate most foreign matters while passing through the sheet layer 23-5, and the foreign matter is configured to be reused by replacing the sheet layer 23-5 or removing foreign matter.

Rainwater passing through the sheet layer 23-5 is configured to purify while passing through the nonwoven fabric layer 23-4, the gravel layer 23-2, the sand layer 23-3, and the activated carbon layer 23-1. have.

Rainwater purified by the septic tank 14 is configured to be transferred to the collecting plate 28 of the tank 12-1.

The drain hole 27 of the collecting plate 28 is arranged to be inserted into the inlet 18 of the tank 12.

An electric valve 24b is installed at the outlet 16b of the septic tank 14.

The tank part 12-1 is configured such that a plurality of tanks 12 are coupled in the front, rear, left, right, up and down directions.

Each tank 12 of the tank part 12-1 is multiple, so each tank is unified as (12), the inlet of each tank is unified as (18), and the drain port of the tank is also unified as (19). The valve was also unified as (21) and explained.

In the upper portion of the tank 12 of the tank part 12-1, an inlet 18 for introducing rainwater is formed, and a drain 19 for discharging rainwater from the tank 12 is formed in the lower portion of the tank 12. When the tank 12 is joined up and down, the rainwater inlet 18 of the lower tank 12 is inserted into the lower drain 19 of the upper tank, and the inlet 18 of the lower tank 12 becomes the drain port 19 of the upper tank. ) Exposed to and protruding, the valve 21 closed the drain port 19 is opened so that the rainwater flowing into the upper tank 12 can automatically fill the rainwater to the lower tank 12 in sequence.

A water level sensor 25 for sensing the water level of the tank 12 is installed at the inlet 18 of the tank 12 to operate in connection with the separate discharge pipe 11 and the outlets 16a, 16b of the septic tank 14. Consists of.

When the rainwater flowing into the tank 12 is filled up to the water level sensor 25, the water level sensor 25 operates, and the electric valves 24a, 24b of the separate discharge pipe 11 and the outlets 16a, 16b of the septic tank 14 It is configured to close the discharge ports (16a, 16b) of the separated discharge pipe (11) and the septic tank (14) by operating.

A valve 21 is formed in the drain port 19 of the tank 12 so that the valve 21 closes the drain port 19.

When the inlet port 18 of the lower tank 12 is inserted into the drain port 19, the inserted inlet port 18 is exposed above the drain port 19 of the upper tank 12 to close the drain port 19 It is configured to be able to open the valve 21 by pushing it up.

As described above, when the inlet 18 of the tank 12 coupled below opens the valve 21 of the upper tank, rainwater from the upper tank 12 automatically flows into the lower tank 12.

When rainwater is gradually filled in the tank 12, which is connected vertically in the same way as described above, from the bottom to the upper tank 12, the water level sensor 25 is operated and the discharge port 16a of the separated discharge pipe 11 and the septic tank It is configured to block the inflow of rainwater by closing the outlet 16b of (14).

The water level sensor 25 is configured in a detachable manner so that it can be installed only in the upper tank 12 of the tank part 12-1.

The water level sensor 25 forms two fittings 25a and 25b to the left as shown in FIG. 4 and when the water level sensor 25 is coupled to the inlet 18 of the tank 12, the inlet ( 18) is coupled to the left fitting (25a) of the water level sensor (25), and when the collecting plate (28) is coupled to the tank (12), the collecting hole (28-1) of the collecting plate (28) is the right fitting ( By coupling to 25b), the water level sensor 25 can be exposed outside the water collecting hole 28-1 and is configured to be detachably detachable.

When the tank 12 filled with rainwater is separated from the top, the inlet 18 of the lower tank 12 is separated from the drain 19 of the upper tank 12, and the drain 19 of the upper tank 12 The opened valve 21 descends so that the valve 21 closes the drain port 19 of the upper tank 12 and rainwater does not leak from the separated tank 12.

When the rainwater leaked at the moment the valve 21 is closed while separating the tank 12 is received in the upper surface 31 of the tank 12, the received rainwater is a drain hole 27 formed at one side of the inlet 18 It is configured to be drained and introduced into the tank 12.

Rainwater from the septic tank 14 flowing into the water collecting plate 28 by forming a collecting plate 28 so that rainwater from the septic tank 14 can be transferred equally to each tank 12 of the tank part 12-1 It is configured to provide rainwater to each tank 12 through a plurality of water collecting holes 28-1 formed in the collecting plate 28.

When each of the tanks 12 is separated, the inlet 18 of the tank 12 is configured to be opened and closed with a cap (not shown).

Example

There is a problem that water shortage occurs even in areas with abundant rain, but there is a problem that rain is polluted due to the lack of facilities for storing rain nationally and the air pollution is severe as the industry develops, and the above contaminants accumulate on the roof of the building and it rains. Since the first rain is discharged with the contaminants, there is a problem that even drinking water is contaminated.

The present invention provides a device that can be used in an emergency by storing a part of rainwater discharged to the stormwater pipe 13 of a building and discharged to the underground stormwater passage 17.

In general, rain falling on the rooftop 13-1 and the inclined roof is transferred to the rainwater passage 17 through the rainwater pipe 13 installed on the rooftop and the roof.

Figure 1 shows the relationship between the system of the present invention.

2 shows the overall configuration of the present invention.

Figure 3 shows the relationship between the separated discharge pipe of the rainwater pipe.

4 is a detailed illustration of a rainwater tank that can be continuously combined.

5 shows a state in which rainwater of a rainwater tank connected continuously is continuously filled.

6 shows the configuration of the tank part.

In the present invention, by combining the separated discharge pipe 11 as shown in FIG. 3 to the rainwater pipe 13, a part of rainwater flowing along the wall of the separated discharge pipe 11 is accommodated in the arc 15 of the separated discharge pipe 11 The received rainwater is discharged to the discharge port (16a) of the separate discharge pipe (11).

The rainwater flowing through the arc 15 of the separate discharge pipe 11 and the rainwater conveyed through the arc 15 continue to pass through the lower separate discharge pipe 11 while the upper separate discharge pipe 11 performs rainwater. Subsequently, it is discharged to the separate discharge pipe (11).

Rainwater discharged through the separate discharge pipe 11 is transferred to the septic tank 14.

Rainwater transferred to the septic tank 14 is a sheet layer 23-5, a nonwoven fabric layer 23-4, a gravel layer 23-2, a sand layer 23-3, and an activated carbon layer 23 of the septic tank 14. It passes through -1) and purifies foreign matter in rainwater.

The sheet layer 23-5 can be reused by changing or washing from time to time.

Rainwater passing through the septic tank 14 is transferred to the collecting plate 28.

Rainwater transferred to the collecting plate 28 is transferred to the inlet 18 of the tank 12 through the drain hole 28-1 of the collecting plate 28.

Rainwater transferred to the inlet 18 is accommodated in the tank 12 and the rainwater received in the tank 12 passes through the lower drain 19 of the tank 12.

The valve 21 is closed at the drain port 19 of the tank 12 so that rainwater is maintained in a state accommodated in the tank 12.

Combining several tanks 12 to form a tank part 12-1, and combining multiple tanks 12 from bottom to top to fill the entire tank part 12-1 with rainwater. When the respective tanks 12 are combined, each tank 12 is connected to the front and rear, left and right and up and down.

The coupling of the tanks 12 is that the female coupling portion 22a and the male coupling portion 22b formed on the outer surface of each tank 12 are continuously coupled, so that the tank 12 can be continuously coupled in all directions.

As described above, when each tank 12 is combined in the front and rear, left and right, the inlet 18 of the lower tank 12 combined vertically passes through the drain 19 of the upper tank 12 and protrudes out of the drain 19. Therefore, when the lower tank 12 is combined with the upper tank 12, the inlet 18 of the lower tank 12 pushes the valve 18 of the upper tank 12, and the drain port 19 of the upper tank 12 Will be opened.

As described above, when the valve 21 of the drain port 19 of the upper tank 12 is opened, rainwater flowing into the upper tank 12 flows into the lower tank 12, and the lowermost tank 12 is connected continuously in the same way. It is possible to fill up to the top tank 12 by sequentially filling rainwater from ).

As described above, when the rainwater is filled in the lower tank 12, it is filled to the upper tank 12, and when the water level of the rainwater accommodated in the upper tank 12 reaches a certain level, the sensor 25 that senses the water level operates. The electric valve 24a of the separate discharge pipe 11 and the electric valve 24b of the septic tank 14 are closed.

When rainwater is filled in all the tanks 12 of the tank 12-1 as described above, the rainwater of the rainwater pipe 13 is transferred to the rainwater passage 17.

When each tank 12 of the tank 12-1 is filled with rainwater and it is necessary to separate each tank 12, the water collecting plate 28 is removed and the water level sensor 25 is removed.

As described above, after removing the collecting plate 28 and the sensor 25, when the handle 29 of the top tank 12 is lifted and lifted, the inlet of the lower tank 12 from the drain 19 of the upper tank 12 As (18) is separated, the open upper tank valve 12 is closed, so that rainwater in the upper tank 12 can be prevented from leaking.

When the upper tank 12 is separated from the lower tank 12, the inlet 18 of the lower tank 12 is separated from the drain 19 of the upper tank 12, and the valve 21 of the upper tank 12 At the moment when is closed, the rainwater from the upper tank 12 is instantly leaked.

Rainwater instantaneously discharged from the upper tank 12 as described above is accommodated on the upper surface 31 of the lower tank 12.

Rainwater accommodated in the upper surface 31 of the lower tank 12 is transferred to the inside of the tank 12 through a drain hole 27 formed at one side of the inlet 18.

As described above, the inlet 18 of the tank 12 separated from the tank 12-1 is covered with a cap (not shown) to be managed.

11: separate discharge pipe 12: tank
12-1: tank part 13: rain pipe,
13-1: rooftop 14: septic tank
15: issue 16: outlet (a,b)
17: rainway 18: inlet
19: drain 21: valve
22: coupling portion (a, b) 23: space layer,
23-1: charcoal layer 23-2: gravel layer,
23-3: sand layer, 23-4: non-woven fabric layer,
23-5: seat layer 24: electric valve (a,b)
25: water level sensor 25: fitting hole (a,b)
27: drain hole 28: water collecting plate
28-1: catch hole 29: handle
31: upper surface

Claims (13)

In the rainwater storage device, a separate discharge pipe for separating and discharging a part of the comb of the rainwater pipe, a septic tank for purifying rainwater discharged from the discharge pipe, a rainwater tank for accommodating rainwater purified in the normal ash tank, and the rainwater tank A device for storing rainwater so that rainwater can be used as an emergency by purifying contaminants of rainwater including boiling point contaminants of a rainwater pipe, characterized in that it is composed of a tank unit composed of several tanks by combining front and rear left and right up and down. The rainwater pipe according to claim 1, wherein the separate discharge pipe coupled to the stormwater pipe receives a part of rainwater including the first rainwater flowing along the inner wall thereof, and an arc including an outlet through which the received rainwater can be discharged is formed. A device that stores rainwater for emergency use by purifying rainwater pollutants including boiling point pollutants. The apparatus of claim 2, wherein the separated discharge pipe is arranged in several stages according to the length of the rainwater pipe, which purifies the contaminants of rainwater including boiling point contaminants of the rainwater pipe and stores rainwater so that it can be used in an emergency. The method of claim 2, wherein a space layer is formed in the lowermost layer of a septic tank that receives and purifies rainwater transferred from the outlet of the separation discharge pipe, an activated carbon layer is formed on the space layer, a sand layer is formed on the activated carbon, and a gravel layer is formed on the sand layer, and gravel. Rainwater contaminants including boiling point contaminants of rainwater pipes, characterized in that it is formed on a nonwoven fabric layer above the layer, a sheet layer is formed above the nonwoven fabric layer, is configured to purify rainwater, and the space layer of the lowermost layer is configured to observe the purified rainwater. A device that stores rainwater so that it can be purified and used as an emergency. The method of claim 4, wherein the purified rainwater from the septic tank is configured to be transferred to the tank of the tank unit through the outlet of the septic tank, and the rainwater is stored for emergency use by purifying contaminants of rainwater including boiling point contaminants of the rainwater pipe. Device. The tank unit according to claim 1, wherein the tank unit is configured by combining several tanks in front, rear, left, right and up and down, and a collecting plate is combined at the upper part of the tank to simultaneously transfer rainwater to the inlets of several tanks in the tank unit through several collecting holes of the collecting plate. A device for storing rainwater so that it can be used as an emergency by purifying pollutants of rainwater including boiling point pollutants of a rainwater pipe, characterized in that it is configured. The tank according to claim 1, wherein the upper surface of the tank forms a space so that the lower part of the other tank can be easily combined, and the lower part is reduced so that the upper surface of the other tank can be easily combined, and rainwater is introduced into the center of the upper surface of the tank. The rainwater is stored for emergency use by purifying rainwater contaminants including boiling point contaminants of rainwater pipes, characterized in that a drain hole is formed in the center of the lower surface of the tank to discharge rainwater flowing into the inlet. Device. The method of claim 7, wherein a water level sensor for sensing the water level is formed at the inlet of the tank, and is configured to control the amount of rainwater flowing into the tank. A device that stores rainwater for use. The method of claim 8, wherein a valve is formed in the drain hole formed at the lower part of the tank to prevent leakage of rainwater accommodated in the tank. A device that stores rainwater for use. The method of claim 1, wherein the inlet of the lower tank is coupled to be exposed to the drain of the upper tank, and the inlet of the lower tank is configured to open the valve of the drain of the upper tank, so that rainwater flowing into the uppermost tank is automatically transferred to the lower tank. A device for storing rainwater to be used as an emergency by purifying pollutants of rainwater including boiling point pollutants of a rainwater pipe, characterized in that it is configured to fill rainwater. The separate discharge pipe and the rainwater of the septic tank according to claim 10, wherein when the rainwater flowing through the upper inlet is filled to the upper tank and the water level sensor senses the water level, an electric valve configured to block rainwater from the separate discharge pipe and the septic tank is operated. A device for storing rainwater so that it can be used as an emergency by purifying the contaminants of rainwater including the boiling point contaminants of the rainwater pipe, characterized in that it is configured to block. The method of claim 1, wherein when the upper tank is separated from the tank to separate the tank from the tank, the inlet of the lower tank is separated from the drain of the upper tank, and the open valve of the drain is lowered and the inlet of the lower tank is completely separated. A device for storing rainwater so that it can be used as an emergency by purifying contaminants of rainwater including boiling point contaminants of a rainwater pipe, characterized in that the valve of the drain port is configured to prevent leakage of rainwater from the above tank by closing the drain port. The method of claim 12, wherein a male and female coupling part is formed on the side of the tank, and it is configured to form a tank part by successively coupling to all four sides of the tank to purify contaminants of rainwater including boiling point contaminants A device that stores rainwater for emergency use.

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