CN102060388B - Three-dimensional landscape impounding reservoir system and method for recovering urban roofing rainwater by using same - Google Patents

Abstract

The utility model relates to a three-dimensional landscape storage tank system and a method for recycling urban roof rainwater thereof, and relates to a landscape storage tank and a method for recycling urban rainwater thereof. The present invention solves the problem that the existing methods for comprehensive utilization of urban rainwater have a small application range. The three-dimensional landscape storage tank system of the present invention is a three-dimensional landscape storage tank, or a plurality of The three-dimensional landscape reservoir includes a reservoir and a landscape pool. The side wall of the reservoir is provided with a discharge port, an overflow port and a water inlet. The reservoir and the landscape pool are connected through a connecting device; method: rainwater is collected to a high After the density sedimentation tank is coagulated, it is filtered by the V-shaped filter and sterilized by ultraviolet light before entering the three-dimensional landscape storage tank system to complete the recycling of urban roof rainwater. The invention makes full use of urban space to combine rainwater reuse with landscape, and can be used as an independent urban rainwater recovery and urban waterlogging prevention system, and can also be used as an external circulation unit of a drainage system.

Description

Three-dimensional landscape storage tank system and its method of recycling urban roof rainwater

Technical field:

The invention relates to a landscape storage tank and a method for recycling urban rainwater using the same.

Background technique:

Under the current trend of urban ecological construction, rainwater recovery and utilization technology has been widely valued. There are two existing methods for comprehensive utilization of urban rainwater: 1. Deconcentrating water storage and anti-flooding system, which is composed of small pipes all over the courtyard, open channels running through the linear park landscape, and closed sedimentation tanks. This method is only suitable for areas with moderate rainfall, uniform rainfall and small cities; second, to set up large flood storage tanks underground to collect and store rainwater. It has dual effects of flood detention and rainwater storage, but in large cities with little available space, the application of large flood storage tanks is limited, and this method is only applicable to areas with small cities. In the prior art, there is no integration of urban rainwater collection and treatment with Combined use of landscape.

Contents of the invention

The present invention aims to solve the problem that the existing comprehensive utilization method of urban rainwater has a small application range, and provides a three-dimensional landscape storage tank and a method for recycling urban roof rainwater therefrom.

The three-dimensional landscape reservoir system of the present invention is a three-dimensional landscape reservoir, or is composed of a plurality of three-dimensional landscape reservoirs connected in series or in parallel; the three-dimensional landscape reservoir includes a reservoir and a landscape pool, and the landscape The landscape medium is installed in the pool, the discharge port is set at the lower end of the side wall of the reservoir, the overflow port is set at the upper end of the side wall of the reservoir, and the water inlet is arranged at the upper part of the side wall of the reservoir. It is characterized in that the landscape pool is located at Above the cistern, the cistern is connected with the landscape pool through a connecting device.

In the three-dimensional landscape reservoir of the present invention, the upper layer is a flower pond, landscape lawn, aquatic plant planting pool or landscape pool, and water landscapes such as fountains, stacked water, water walls, drips, etc. can be set up, and the lower layer is a reservoir that overflows during rainstorms The rainwater is discharged into the nearby urban drainage pipes, and the discharge port is set at the bottom of the storage tank to remove the sludge regularly. The treated water storage can be used for greening watering, car washing, fire fighting, landscape water replenishment water and cooling tower water for large air-conditioning systems, etc. Strengthen water purification during the flow. During the heavy rain period, store water in the reservoir to reduce the pressure of the heavy rain on the urban drainage system. As an overall waterlogging prevention system, it can also recycle lightly polluted rainwater and reduce water treatment costs. .

The method of recycling urban roof rainwater with a three-dimensional landscape storage tank system is carried out according to the following steps: After the rainwater is collected, after coagulation sedimentation, filtration and ultraviolet sterilization treatment, it passes through the storage tank in the three-dimensional landscape storage tank system. The water inlet is injected into the reservoir of the three-dimensional landscape reservoir system, and the water is lifted to the landscape pool through the connecting device of the three-dimensional landscape reservoir system to complete the recycling of urban roof rainwater.

The method of recycling urban roof rainwater with a three-dimensional landscape storage tank system is not limited by the lack of available space in the city, and does not change the original architectural layout of the city. The space or the lower part of the green belt on both sides of the road is equipped with a reservoir, combined with the landscape pool on the upper part of the reservoir to form a three-dimensional landscape reservoir, which saves land resources and has the functions of beautifying the urban street environment and utilizing ecological resources; The method not only can use the rainwater with low pollution to support the landscape of the landscape pool, saving the maintenance cost of urban green space and water landscape, but also can use the water in the reservoir for watering, All aspects of life such as car washing and fire-fighting water; during the heavy rain period, the water is stored in the reservoir to reduce the pressure of the heavy rain on the urban drainage system. As an overall flood prevention system, it can also recycle lightly polluted rainwater. Reduce water treatment costs. The method of connecting multiple three-dimensional landscape reservoirs in series in the present invention can form a slope between the water outlet of the previous reservoir and the water inlet of the next reservoir in combination with the height of the terrain or the gradient change of the depth of the pond bottom, Under the action of the pressure difference formed between the upper reservoir and the last reservoir, the water forms a natural flow state, and the water intake device installed in the last reservoir can also be used to force the ground water while supplying water. Promote the flow of water and improve the purification effect; when two water outlets are set on the side walls of the series-connected three-dimensional landscape reservoirs, the next reservoir will form a double-layer drop-type water storage system, which increases the water and air. The chance of contact further improves the purification effect. The water quality treated by the method of the present invention satisfies the "Technical Specifications for Rainwater Utilization Engineering of Buildings and Residential Areas" (GB50400-2006), "Water Quality Standards for Urban Sewage Recycling and Utilization of Landscape Environment Water" (GBPT189212-2002) and "Design Specifications for Industrial Circulating Cooling Water Treatment" "(GB50050-2007) water quality requirements for reclaimed water. The invention is applicable to the comprehensive development of public building groups or landscape green belt space next to the residential area, and can be used in combination with the rainwater discharge open channel in the residential area, the large deep-buried water storage pool in the city, and the fire pool, or use the urban road space for rainwater recycling. The combination of use and landscape can be used not only as an independent rainwater recovery and urban flood prevention system, but also as an external circulation unit of the original urban drainage system, which can be applied in large, medium and small cities.

Description of drawings

Figure 1 is a schematic diagram of a three-dimensional landscape reservoir in the internal communication mode. In the figure, 1 is the landscape pool, 2 is the reservoir, 2-1 is the discharge port, 2-2 is the overflow port, and 2-3 is the water inlet. 3 is a communication device, 3-1 is a waterproof protective tube, 3-2 is a waterproof protective cover, 3-3 is a polyurethane foam rod, and 4 is a landscape medium; Figure 2 is a schematic diagram of a three-dimensional landscape reservoir in the form of external communication, In the figure, 1 is the landscape pool, 2 is the reservoir, 2-1 is the discharge port, 2-2 is the overflow port, 2-3 is the water inlet, 3 is the connecting device, 3-4 is the pump, 3-5 is the connecting pipe , 4 is the landscape medium.

Detailed ways

Specific embodiment one: (see accompanying drawing 1 and Fig. 2) the three-dimensional landscape reservoir system of this embodiment is a three-dimensional landscape reservoir, or is made up of a plurality of series or parallel three-dimensional landscape reservoirs; The three-dimensional landscape reservoir includes a reservoir 2 and a landscape pool 1. The landscape medium 4 is housed in the landscape pool 1, and the discharge outlet 2-1 is set at the lower end of the side wall of the reservoir 2. The upper end is provided with an overflow port 2-2, and a water inlet 2-3 is provided on the upper part of the side wall of the reservoir 2, which is characterized in that the landscape pool 1 is located above the reservoir 2, and the reservoir 2 and the landscape pool 1 pass through the communication device 3 connected.

In the three-dimensional landscape storage pool of this embodiment, the upper layer is a flower pond, landscape lawn, aquatic plant planting pool or landscape pool, and water landscapes such as fountains, stacked water, water walls, drips, etc. can be set up, and the lower layer is a storage pool. The overflowed rainwater is discharged into the nearby urban drainage pipes, and the bottom of the storage tank is provided with a discharge port to remove sludge regularly. The treated water storage can be used for greening watering, car washing, fire fighting, landscape water replenishment water and cooling tower water for large air-conditioning systems, etc. Strengthen water purification during the flow. During the heavy rain period, store water in the reservoir to reduce the pressure of the heavy rain on the urban drainage system. As an overall waterlogging prevention system, it can also recycle lightly polluted rainwater and reduce water treatment costs. .

Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the connection pipes with a slope of 2 to 8 degrees are used to connect the reservoirs 2 in the series connection, and the outlet of the connecting pipes of the reservoirs 2 is set at the The middle and lower part of the side wall of the pool. Others are the same as in the first embodiment.

The three-dimensional landscape storage tank system of this embodiment connects multiple three-dimensional landscape storage tanks in series, and can combine the height of the terrain or the gradient change of the depth of the bottom of the pool to connect the water outlet of the previous storage tank to the next storage tank. The connecting pipe between the water inlets forms a slope, and under the action of the pressure difference formed between the upper reservoir and the last reservoir, the water forms a natural flow state, increases the chance of contact with oxygen, and maintains good water quality for a long time .

Specific embodiment 3: The difference between this embodiment and specific embodiment 1 is that the connection pipes with a slope of 5 degrees are used to connect the reservoirs 2 in the series connection, and the outlet of the connecting pipes of the reservoirs 2 is set at the reservoir 2 the middle and lower part of the side wall. Others are the same as in the first embodiment.

Embodiment 4: This embodiment differs from Embodiment 1 to Embodiment 3 in that: a water intake pump is provided on the side wall of the last three-dimensional landscape reservoir 2 of the multiple three-dimensional landscape reservoirs connected in series. Others are the same as one of the specific implementations 1 to 3.

In this embodiment, the water intake device arranged in the last reservoir is used to supply ground water while forcibly promoting the flow of water, so as to maintain good water quality for a long time.

Specific embodiment five: the difference between this embodiment and one of the specific embodiments one to four is: when a plurality of three-dimensional landscape reservoirs are connected in series, there are 1 to 2 connecting pipes arranged at the middle and lower parts of the side walls of the reservoirs 2. strip. Others are the same as one of the specific embodiments 1 to 4.

In this embodiment, when one connecting pipe is connected in series, the connecting pipe of the reservoir 2 is arranged at the lower part of the side wall of the reservoir 2; when two connecting pipes are connected in series, the connecting pipe of the reservoir 2 is arranged at The lower part of the pool 2 side wall is 1, and the middle part is 1. Two upper and lower connecting pipes are set on the side walls of the three-dimensional landscape reservoirs connected in series, and a double-layer falling flow state will be formed in the next reservoir, which increases the chance of water contacting with air and better maintains water quality.

Specific embodiment 6: (see accompanying drawing 1) The difference between this embodiment and one of specific embodiments 1 to 5 is that the communication device 3 is covered with a waterproof protective tube 3-1 on the outside and has a waterproof protective cover 3-2 on the top. The distance between the lower end of the polyurethane foam rod 3-3 and the bottom of the reservoir 2 is 5 cm to 30 cm, and the polyurethane foam rod 3-3 passes through the bottom of the landscape pool 1 and the landscape medium 4 in the landscape pool 1 touch. Others are the same as one of the specific embodiments 1 to 5.

In this embodiment, a polyurethane foam rod is used as a connecting device, and its function of automatically absorbing water is used to continuously lift the water in the lower reservoir through the channel formed by the polyurethane foam rod to the upper landscape pool, eliminating the need for lifting. Power equipment saves energy, realizes automatic control, and reduces management costs.

Embodiment 7: This embodiment differs from Embodiment 5 in that the distance between the lower end of the polyurethane foam rod and the bottom of the reservoir is 20 cm. Others are the same as in the fifth embodiment.

Specific Embodiment 7: (see accompanying drawing 2) The difference between this embodiment and one of specific embodiments 1 to 6 is that the communication device 3 includes a pump 3-4 and a connecting pipe 3-5, and the reservoir 2 passes through the pump. 3-4 and the connecting pipe 3-5 are connected to the landscape pool 1.

The external pump and connecting pipe of this embodiment lift the water in the reservoir to the landscape pool, which is a way to lift water intermittently. The water is used for washing roads, washing cars, etc.

Embodiment 8: The difference between this embodiment and one of Embodiments 1 to 7 is that the landscape medium 4 is soil or water. Others are the same as one of the specific embodiments 1 to 7.

When the landscape medium of this embodiment is soil, flowers and plants can be planted in the landscape pool; when the landscape medium is water, aquatic plants can be planted in the landscape pool, and water landscapes can also be set in the landscape pool, such as fountains, stacked water, Water landscapes such as water walls and drips.

Ninth specific implementation method: In this embodiment, the method of recycling urban roof rainwater with a three-dimensional landscape storage tank system is carried out according to the following steps: After collecting rainwater, after coagulation sedimentation, filtration and ultraviolet sterilization treatment, the three-dimensional landscape storage tank is used to store rainwater The water inlet 2-3 of the reservoir 2 in the pool system is injected into the reservoir 2 of the three-dimensional landscape reservoir system, and the water is lifted to the landscape pool 1 by the connecting device 3 of the three-dimensional landscape reservoir system for use, completing the city Recycling of roof rainwater.

The method of recycling urban roof rainwater with a three-dimensional landscape storage tank system in this embodiment is not limited by the lack of available space in the city, does not change the original architectural layout of the urban area, and can make full use of the flower beds and flower ponds in the community. Or the space at the lower part of the square or the lower space of the green belt on both sides of the road is equipped with a reservoir, combined with the landscape pool on the upper part of the reservoir to form a three-dimensional landscape reservoir, which saves land resources and has both urban street beautification and ecological resource utilization. The function; this method can not only support the landscape of the landscape pool by treating the less polluted rainwater, saving the maintenance cost of urban green space and water landscape, but also can use the water in the reservoir It is used in all aspects of life such as watering, car washing, fire fighting, etc.; during the heavy rain period, the water is stored in the reservoir to reduce the pressure of the heavy rain on the urban drainage system. Rainwater recycling reduces water treatment costs. The three-dimensional landscape reservoir system of this embodiment can be a three-dimensional landscape reservoir, or multiple three-dimensional landscape reservoirs connected in series or in parallel, and the height of the terrain or the gradient of the depth of the pool bottom can be combined when connected in series. The change forms a slope between the water outlet of the previous reservoir and the water inlet of the next reservoir, and under the action of the pressure difference formed between the upper reservoir and the last reservoir, the water forms a natural In the flowing state, the water intake device installed in the last reservoir can also be used to force the flow of water and improve the purification effect while supplying ground water; When the water outlet is opened, the next reservoir will form a double-layer drop-type water storage system, which increases the opportunity for the water body to contact with the air and further improves the purification effect. The water quality treated by the method of the present invention satisfies the "Technical Specifications for Rainwater Utilization Engineering of Buildings and Residential Areas" (GB50400-2006), "Water Quality Standards for Urban Sewage Recycling and Utilization of Landscape Environment Water" (GBPT189212-2002) and "Design Specifications for Industrial Circulating Cooling Water Treatment" "(GB50050-2007) water quality requirements for reclaimed water. The method of this embodiment is suitable for the comprehensive development of public building groups or landscape green belt space next to residential areas, and can be used in combination with residential area rainwater discharge channels, urban deep-buried large reservoirs, and fire pools. It can be used not only as an independent rainwater recovery and urban flood prevention system, but also as an external circulation unit of the original urban drainage system, which can be applied in large and small cities.

Embodiment 10: The difference between this embodiment and Embodiment 9 is that the coagulation sedimentation is to inject rainwater into a high-density sedimentation tank, add polyaluminum chloride and polyacrylamide for coagulation, and add polyaluminum chloride The dosage is 10mg/L~30mg/L, the dosage of polyacrylamide is 1mg/L~5mg/L, and the hydraulic retention time is 20min~30min. Others are the same as in the ninth embodiment.

Embodiment 11: The difference between this embodiment and Embodiment 9 is that the coagulation sedimentation described above is to inject rainwater into a high-density sedimentation tank, add polyaluminum chloride and polyacrylamide for coagulation, and the coagulation of polyaluminum chloride The addition amount is 20mg/L, the addition amount of polyacrylamide is 3mg/L, and the hydraulic retention time is 25min. Others are the same as in the ninth embodiment.

Embodiment 12: The difference between this embodiment and Embodiment 9 to 11 is that the filtration is to inject rainwater into the V-type filter through the filter pump, and the filtration rate of the V-type filter is 4 ～15m/h, the air impact intensity is 100L/sm ² ～160L/sm ² . Others are the same as one of the ninth to eleventh specific embodiments.

Specific embodiment thirteen: the difference between this embodiment and one of specific embodiments nine to eleven is that the filtration is to inject rainwater into a V-shaped filter through a filter pump, and the filtration rate of the V-shaped filter is 10m /h, the air shock intensity is 130L/sm ² . Others are the same as one of the ninth to eleventh specific embodiments.

Embodiment 14: This embodiment differs from Embodiments 9 to 13 in that: the ultraviolet intensity of the ultraviolet sterilization is 200uW/cm ² -300uW/cm ² , and the sterilization time is 30min-60min. Others are the same as one of the ninth to thirteenth specific embodiments.

Embodiment 15: This embodiment differs from Embodiment 9 to Embodiment 13 in that: the ultraviolet intensity of the ultraviolet sterilization is 250uW/cm ² , and the sterilization time is 45min. Others are the same as one of the ninth to thirteenth specific embodiments.

Specific Embodiment Sixteen: The method of recycling urban roof rainwater with a three-dimensional landscape storage tank system is carried out according to the following steps: After the rainwater is collected, it is treated by coagulation, precipitation, filtration and ultraviolet sterilization, and then passes through the three-dimensional landscape storage tank The water inlet 2-3 of the reservoir 2 in the system is injected into the reservoir 2 of the three-dimensional landscape reservoir system, wherein the three-dimensional landscape reservoir system is composed of three three-dimensional landscape reservoirs connected in series; the adjacent The three-dimensional landscape reservoir is connected with two connecting pipes with a slope of 8 degrees. One of the interfaces between the reservoir 2 and the connecting pipe is at the lower part of the side wall of the reservoir 2, and the other is at the middle of the side wall of the reservoir 2. The last reservoir 2 in the three-dimensional landscape reservoir system is provided with a water intake pump, and the communication device 3 of each stereoscopic landscape reservoir 2 is covered with a waterproof protective tube 3-1 on the top with a waterproof protective cover 3-2. The polyurethane foam rod 3-3, the distance between the lower end of the polyurethane foam rod 3-3 and the bottom of the reservoir 2 is 30cm, the polyurethane foam rod 3-3 passes through the bottom of the landscape pool 1 and contacts the landscape medium 4 in the landscape pool 1, and the water The polyurethane foam rods 3-3 are lifted to the landscape pool for use, and at the same time, the water is taken by the water intake pump set on the last reservoir for use, completing the recycling of urban roof rainwater.

The coagulation precipitation described in this embodiment is to inject rainwater into a high-density sedimentation tank, add polyaluminum chloride and polyacrylamide for coagulation, the addition amount of polyaluminium chloride is 15mg/L, and the addition amount of polyacrylamide is 3mg /L, the hydraulic retention time is 20min.

The filtration described in this embodiment is to inject rainwater into the V-shaped filter tank through the filter water pump, the filtration rate of the V-shaped filter tank is 10m/h, and the air impact intensity is 150L/sm ² .

The ultraviolet intensity of the ultraviolet sterilization described in this embodiment is 200uW/cm ² , and the sterilization time is 40min.

This embodiment utilizes the three-dimensional landscape storage tank system connected in series by three three-dimensional landscape storage tanks to recycle urban roof rainwater. There are two pipelines connecting the adjacent three-dimensional landscape storage tanks. If the two water inlets are not on the same level, the reservoir will form a double-layer drop-type water storage system, which increases the chance of water contacting with air and further improves the purification effect.

The three-dimensional landscape storage pool of this embodiment is built in the lower space of the green belt on both sides of the road. The upper layer is a flower pond, and the lower layer is a water storage pool. Drain outlet, regularly remove sludge. The treated water storage can be used for greening watering, car washing, fire fighting, landscape water replenishment water and cooling tower water for large air-conditioning systems, etc. Strengthen water purification during flow. This method has the functions of urban street beautification and ecological resource utilization, and saves land resources; the COD of rainwater is close to 100mg/L at the beginning of rainfall, the SS is in the range of 70mg/L-90mg/L, and the TP is close to 0.4mg/L. After the runoff, the rainwater quality becomes better. The COD in the late rainfall period is 20mg/L-18mg/L, and the SS is 10mg/L-8mg/L. The COD value of the treated water in the storage tank in this embodiment is 16mg/L. 5mg/L, and the water quality meets the water quality requirements for recycled water in the "Technical Specifications for Rainwater Utilization Engineering in Buildings and Residential Areas" (GB50400-2006) and "Design Specifications for Industrial Circulating Cooling Water Treatment" (GB50050-2007). The water in the reservoir is used to support the landscape of the landscape pool, which saves the maintenance cost of urban green space and water landscape, and the water in the reservoir can also be used for watering, car washing, fire fighting, etc. In various aspects; during the rainstorm period, the water storage tank is used to reduce the pressure of the rainstorm on the urban drainage system. As an overall waterlogging prevention system, it can also recycle lightly polluted rainwater and reduce water treatment costs. The method of connecting multiple three-dimensional landscape reservoirs in series in the present invention can form a slope between the water outlet of the previous reservoir and the water inlet of the next reservoir in combination with the height of the terrain or the gradient change of the depth of the pond bottom, Under the action of the pressure difference formed between the upper reservoir and the last reservoir, the water forms a natural flow state, and the water intake device installed in the last reservoir can also be used to force the ground water while supplying water. Promote the flow of water and improve the purification effect; when two water outlets are set on the side walls of the series-connected three-dimensional landscape reservoirs, the next reservoir will form a double-layer drop-type water storage system, which increases the water and air. The chance of contact further improves the purification effect.

Specific Embodiment Seventeen: The method for recycling urban roof rainwater with a three-dimensional landscape storage tank system is carried out in the following steps: after rainwater is collected, it is treated with coagulation, precipitation, filtration and ultraviolet sterilization, and then passes through the three-dimensional landscape storage tank The water inlet 2-3 of the reservoir 2 in the system is injected into the reservoir 2 of the three-dimensional landscape reservoir system, wherein the three-dimensional landscape reservoir system is formed by parallel connection of three three-dimensional landscape reservoirs; The connecting device 3 of the type landscape reservoir includes a pump 3-4 and a connecting pipe 3-5, and the reservoir 2 is connected with the landscape pool 1 by the pump 3-4 and the connecting pipe 3-5, and each reservoir 2 is set to take The water pump, the water is lifted to the landscape pool 1 through the connecting device 3 of the three-dimensional landscape storage tank system for use, and the water intake pump installed on the storage tank 2 is used to take water and use it to complete the recycling of urban roof rainwater.

The coagulation precipitation described in this embodiment is to inject rainwater into a high-density sedimentation tank, add polyaluminum chloride and polyacrylamide for coagulation, the addition amount of polyaluminium chloride is 25mg/L, and the addition amount of polyacrylamide is 4mg /L, the hydraulic retention time is 25min.

The filtration described in this embodiment is to inject rainwater into the V-shaped filter tank through the filter water pump, the filtration rate of the V-shaped filter tank is 15m/h, and the air impact intensity is 120L/sm ² .

The ultraviolet intensity of the ultraviolet sterilization described in this embodiment is 200uW/cm ² , and the sterilization time is 50min.

The three-dimensional landscape storage pool of this embodiment is built in the lower space of the green belt on both sides of the road. The upper layer is a flower pond, and the lower layer is a water storage pool. Drain outlet, regularly remove sludge. The treated water storage can be used for greening watering, car washing, fire fighting, landscape water replenishment water and cooling tower water for large air-conditioning systems, etc. Strengthen water purification during flow. This method has the functions of urban street beautification and ecological resource utilization, and saves land resources; the COD of rainwater is close to 100mg/L at the beginning of rainfall, the SS is in the range of 70mg/L-90mg/L, and the TP is close to 0.4mg/L. After the runoff, the rainwater quality becomes better, the COD in the late rainfall period is 20mg/L-18mg/L, and the SS is 10mg/L-8mg/L. The COD value of the water in the storage tank after treatment in this embodiment is 15mg/L 4mg/L, and the water quality meets the water quality requirements for reclaimed water in the "Technical Specifications for Rainwater Utilization Engineering in Buildings and Residential Areas" (GB50400-2006) and "Design Specifications for Industrial Circulating Cooling Water Treatment" (GB50050-2007). The water in the reservoir is used to support the landscape of the landscape pool, which saves the maintenance cost of urban green space and water landscape, and the water in the reservoir can also be used for watering, car washing, fire fighting, etc. In various aspects; during the rainstorm period, the water storage tank is used to reduce the pressure of the rainstorm on the urban drainage system. As an overall waterlogging prevention system, it can also recycle lightly polluted rainwater and reduce water treatment costs. The method of connecting multiple three-dimensional landscape reservoirs in parallel in this embodiment can save the construction cost of rainwater pretreatment in the early stage.

Claims (9)

1. three-dimensional view water reservoir system is characterized in that three-dimensional view water reservoir system is a three-dimensional view water reservoir, perhaps is made up of the three-dimensional view water reservoir of a plurality of serial or parallel connections; Three-dimensional view water reservoir comprises water reservoir (2) and view pond (1); View medium (4) is housed in the view pond (1); In water reservoir (2) side wall lower ends escape orifice (2-1) is set; Upper end at water reservoir (2) sidewall is provided with spillway (2-2), is provided with water-in (2-3) on the top of water reservoir (2) sidewall, it is characterized in that view pond (1) is positioned at the top of water reservoir (2); Water reservoir (2) is communicated with through communication apparatus (3) with view pond (1); Described communication apparatus (3) is with the polyurethane foam rod (3-3) that waterproofing protection pipe (3-1) top has water-proof protection cover (3-2) for the outside, and lower end and the distance at water reservoir (2) end of polyurethane foam rod (3-3) are 5cm～30cm, and polyurethane foam excellent (3-3) is passed the end, view pond (1) and contacted with view medium (4) in view pond (1).

2. three-dimensional view water reservoir according to claim 1 system is characterized in that described series connection is that to use the gradient be that the pipe connecting of 2～8 degree links to each other water reservoir (2), the pipe connecting outlet of water reservoir be arranged on water reservoir (2) sidewall in or the bottom.

3. three-dimensional view water reservoir according to claim 1 and 2 system is characterized in that at the sidewall of last three-dimensional view water reservoir (2) of placed in-line a plurality of three-dimensional view water reservoirs the water intaking pump being set.

4. three-dimensional view water reservoir according to claim 1 and 2 system, when it is characterized in that with a plurality of three-dimensional view water reservoirs series connection, be arranged on water reservoir (2) sidewall in or the pipe connecting of bottom have 1～2.

5. three-dimensional view water reservoir according to claim 1 and 2 system is characterized in that described communication apparatus (3) comprises pump (3-4) and pipe connecting (3-5), and water reservoir (2) links to each other with view pond (1) with pipe connecting (3-5) through pump (3-4).

6. utilize the method for Urban roof rainwater with the described three-dimensional view water reservoir system recoveries of claim 1; It is characterized in that utilizing the method for Urban roof rainwater to carry out according to the following steps: after rainwater is collected with three-dimensional view water reservoir system recoveries; After coagulating sedimentation, filtration and ultra-violet sterilization are handled; Water-in (2-3) through water reservoir (2) in the three-dimensional view water reservoir system injects the water reservoir (2) of three-dimensional view water reservoir system; Water is promoted to view pond (1) through the communication apparatus (3) of three-dimensional view water reservoir system and utilizes, and accomplishes the recycling of Urban roof rainwater.

7. the method for utilizing the Urban roof rainwater with three-dimensional view water reservoir system recoveries according to claim 6; It is characterized in that described coagulating sedimentation is that rainwater is injected the high-density settling tank; Add Poly aluminum Chloride (PAC) and SEPIGEL 305 coagulation; The add-on of Poly aluminum Chloride (PAC) is 10mg/L～30mg/L, and the add-on of SEPIGEL 305 is that 1mg/L～5mg/L, hydraulic detention time are 20min～30min.

8. according to claim 6 or the 7 described methods of utilizing the Urban roof rainwater with three-dimensional view water reservoir system recoveries; It is characterized in that described filtration is that rainwater is injected V-type filter tank through the drainage pump; The filtering velocity in V-type filter tank is 4～15m/h, and gas is 100L/s.m towards intensity ²～160L/s.m ²

9. describedly utilize the method for Urban roof rainwater with three-dimensional view water reservoir system recoveries according to claim 6 or 7, the uitraviolet intensity that it is characterized in that described ultra-violet sterilization is 200～300uW/cm ², sterilizing time is 30min～60min.

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