Green building rainwater collection and utilization system

Abstract

The utility model relates to the technical field of green buildings, in particular to a green building rainwater collection and utilization system which comprises an intercepting overflow well, a water storage pond and a greening watering part which are sequentially communicated, a pressure measuring filter is arranged in the water storage pond, and the water storage pond is divided into a storage sedimentation pond and a clean water pond through the pressure measuring filter; the intercepting overflow pipe discharges collected rainwater into the storage sedimentation tank through a rainwater collection pipeline, and the clean water tank guides filtered rainwater into the greening watering part through a reuse water supply pipeline. In the application, collected rainwater is discharged into the storage and sedimentation tank through the rainwater collection pipeline, impurities such as soil in the rainwater are settled in the storage and sedimentation tank, so that the impurities sink to the bottom of the tank, the settled rainwater is filtered again through the pressure measuring filter, the filtered rainwater enters the clean water tank, and when the greening sprinkling part needs water supply, the rainwater is discharged into the clean water tank. And the recycled water supply pipeline guides the rainwater in the clean water tank into the greening sprinkling part for irrigation, so that collection and utilization of the rainwater are realized.

Description

Technical Field

[0001] The present application relates to the field of green building technology, and in particular to a green building rainwater collection and utilization system. Background Art

[0002] Green building refers to the maximum resource conservation throughout the entire life cycle of the building, including energy conservation, land conservation, water conservation, and material conservation, protecting the environment and reducing pollution, providing people with healthy, comfortable and efficient use space, and buildings that coexist harmoniously with nature.

[0003] As a key element in the water cycle system, rainwater plays an important role in building a sustainable water cycle system for green buildings. Therefore, how to effectively control and utilize rainwater in green buildings has become an important topic that must be paid attention to in the fields of environment, municipal administration, planning, architecture, landscape, and water conservancy.

[0004] However, most green buildings only consider the hazards of floods caused by rainwater, and mainly use ditches to drain rainwater in time. A large amount of water is discharged into ditches and rivers; at the same time, a large amount of rainwater enters the sewers, which increases the drainage pressure of the drainage pipes in green buildings, easily causing a large amount of water accumulation in roads and low-lying areas, and ultimately leading to the loss and waste of rainwater resources.

[0005] In addition, if rainwater is used directly, it will cause pollution due to the large amount of silt and other impurities mixed in the rainwater. Therefore, further improvements can be made. Summary of the invention

[0006] In order to save water resources and reduce the loss and waste of rainwater resources, the present application provides a green building rainwater collection and utilization system.

[0007] The green building rainwater collection and utilization system provided in this application adopts the following technical solutions:

[0008] A green building rainwater collection and utilization system comprises an interception overflow well, a water storage tank, and a greening watering piece connected in sequence, wherein a pressure measuring filter is arranged in the water storage tank, and the water storage tank is divided into a storage sedimentation tank and a clear water tank through the pressure measuring filter, wherein the storage sedimentation tank is close to the interception overflow well, and the clear water tank is close to the greening watering piece; the interception overflow pipe discharges the collected rainwater into the storage sedimentation tank through a rainwater collection pipeline, and the clear water tank guides the filtered rainwater into the greening watering piece through a reuse water supply pipeline.

[0009] By adopting the above technical solution, a pressure measuring filter is set, and rainwater enters the interception overflow well, and then the collected rainwater is discharged into the storage sedimentation tank through the rainwater collection pipeline. The soil and other impurities in the rainwater are initially precipitated in the storage sedimentation tank, so that the soil and other impurities sink to the bottom of the tank. The precipitated rainwater is filtered again through the pressure measuring filter, and the filtered rainwater enters the clear water tank. When the greening watering parts need water supply, the water supply pipeline is reused to guide the rainwater in the clear water tank into the greening watering parts for irrigation, thereby realizing the collection and utilization of rainwater, and filtering the rainwater to prevent the used rainwater from causing pollution.

[0010] Optionally, a discard well is arranged between the interception overflow well and the water storage tank.

[0011] By adopting the above technical solution, a waste flow well is set up, which, on the one hand, helps the interception overflow well to share the collected rainwater and increase the amount of rainwater collected. When a certain amount of rainwater is collected, it is discharged into the storage tank for storage.

[0012] Optionally, a first inspection well and a second inspection well are installed in the water storage tank, and the first inspection well and the second inspection well are respectively installed in the storage sedimentation tank and the clean water tank; the tops of the first inspection well and the second inspection well are both penetrated through the ground, and the tops of the first inspection well and the second inspection well are both installed with protective well covers.

[0013] By adopting the above technical solution, a first inspection well and a second inspection well are set up. The first inspection well and the second inspection well provide maintenance personnel with access to the storage sedimentation tank and the clear water tank, facilitating subsequent inspection, cleaning and maintenance work on the storage sedimentation tank and the clear water tank.

[0014] Optionally, a sludge flushing device is provided in the storage sedimentation tank, and the sludge flushing device includes a backwash pump, a backwash water inlet pipe, and a backwash water outlet pipe, and the backwash water inlet pipe and the backwash water outlet pipe are installed on the water inlet and water outlet of the backwash pump; the backwash pump is installed in the first inspection well, and the backwash water inlet pipe and the backwash water outlet pipe are connected to the storage sedimentation tank at one end away from the backwash pump, and the backwash water outlet pipe is located at the bottom of the storage sedimentation tank.

[0015] By adopting the above technical solution, a sludge flushing device is set up. The rainwater in the storage sedimentation tank contains a large amount of sludge and other sediments. The sludge settled in the storage sedimentation tank is repeatedly flushed by the high-pressure water flow generated by the backwash pump, thereby stirring the sludge at the bottom of the tank to prevent the formation of dead mud areas, which is not conducive to subsequent cleaning work.

[0016] Optionally, a sewage discharge device is also provided in the storage sedimentation tank, and the sewage discharge device includes a sewage pump, a sewage suction pipe, and a sewage discharge pipe. The sewage suction pipe and the sewage discharge pipe are installed at the sewage inlet and sewage outlet of the sewage pump. The sewage pump is installed in the first inspection well, and the sewage suction pipe is connected to the bottom of the storage sedimentation tank at one end away from the sewage pump, and the sewage discharge pipe is connected to the downstream municipal sewage network.

[0017] By adopting the above technical solution and setting up a sewage discharge device, on the one hand, a sewage pump is used to discharge sludge and other impurities in the storage sedimentation tank, thereby reducing the long-term retention of impurities in the storage sedimentation tank, reducing water pollution and odor generation; on the other hand, it prevents pipe blockage and ensures smooth drainage.

[0018] Optionally, the interception overflow well is connected to a park rainwater pipe on the side away from the water storage tank, and the park rainwater pipe is used to connect and transfer rainwater in the park.

[0019] By adopting the above technical solution, the overflow well is connected to the rainwater pipe in the park, and the rainwater collected in the park is transferred to the water storage tank for storage, thereby increasing the water storage capacity of the water storage tank and accumulating the stored rainwater for subsequent use.

[0020] Optionally, a rainwater lifting device is provided in the clean water tank, and the rainwater lifting device includes a lifting pump and a lifting water inlet main pipe. The lifting water inlet main pipe is installed at the water inlet of the lifting pump, and the water outlet of the lifting pump is connected to the reuse water supply pipeline. The lifting pump is installed in a second inspection well, and the lifting water inlet main pipe is connected to the clean water tank at one end away from the lifting pump.

[0021] By adopting the above technical solution, a rainwater lifting device is set up, and a lifting pump is used to increase the water pressure of the reuse water supply pipeline, ensuring that there is sufficient pressure when the water is supplied to the greening sprinklers, thereby solving the problem of insufficient water supply pressure.

[0022] Optionally, a municipal water supply pipe is connected to the clean water tank, and the municipal water supply pipe is used to replenish the water in the clean water tank.

[0023] By adopting the above technical solution and connecting the municipal water supply pipe, when the water in the clear water tank is insufficient to supply water to the greening sprinkler to keep it working, the municipal water supply pipe is used to replenish the clear water tank to prevent the greening sprinkler from failing to work.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. A pressure filter is set up, and rainwater enters the interception overflow well, and then the collected rainwater is discharged into the storage sedimentation tank through the rainwater collection pipeline. The soil and other impurities in the rainwater are initially precipitated in the storage sedimentation tank, so that the soil and other impurities sink to the bottom of the tank. The precipitated rainwater is filtered again through the pressure filter, and the filtered rainwater enters the clean water tank. When the greening sprinkler needs water supply, the water supply pipeline is reused to guide the rainwater in the clean water tank to the greening sprinkler for irrigation, thereby realizing the collection and utilization of rainwater, and filtering the rainwater to prevent the used rainwater from causing pollution;

[0026] 2. Set up sewage discharge devices. On the one hand, use sewage pumps to discharge sludge and other impurities in the storage sedimentation tank, reduce the impurities from being retained in the storage sedimentation tank for a long time, and reduce water pollution and odor generation; on the other hand, prevent pipe blockage and ensure smooth drainage;

[0027] 3. Install a rainwater lifting device and use a lifting pump to increase the water pressure in the reuse water supply pipeline to ensure that the water has sufficient pressure when it is supplied to the greening sprinklers to solve the problem of insufficient water supply pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a side sectional view of this embodiment.

[0029] Description of reference numerals:

[0030] 1. Intercepting overflow well; 11. Park rainwater pipe; 12. Filter manhole cover; 2. Water storage tank; 21. Storage sedimentation tank; 22. Clean water tank; 23. Protective layer; 3. Greening sprinkler; 4. Rainwater collection pipeline; 5. Reuse water supply pipeline; 51. Valve well; 52. Direct buried elastic seat sealing gate valve; 6. Pressure filter; 7. Abandoned flow well; 8. First inspection well; 81. Protective manhole cover; 9. Second inspection well; 100. Sludge flushing device; 101. Backwash pump; 102. Backwash water inlet main pipe; 103. Backwash outlet pipe; 104. Backwash support frame; 105. Sedimentation tank low water level alarm; 200. Sewage discharge device; 201. Sewage pump; 202. Sewage suction pipe; 203. Sewage pipe; 204. Municipal sewage network; 300. Rainwater lifting device; 301. Lifting pump; 302. Lifting water inlet pipe; 303. Lifting support frame; 304. Municipal water supply pipe; 305. Clear water tank low water level alarm; 306. Clear water tank high water level alarm; 307. Low resistance backflow preventer. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 This application is described in further detail.

[0032] The embodiment of the present application discloses a green building rainwater collection and utilization system.

[0033] Reference Figure 1 A green building rainwater collection and utilization system includes an interception overflow well 1, a water storage tank 2, and a greening watering component 3 which are connected in sequence. In the actual working process, the interception overflow well 1 is used to collect rainwater, and then the rainwater is discharged into the water storage tank 2 for storage. When the greening watering component 3 needs to use water, the rainwater in the water storage tank 2 is used, thereby realizing the collection and utilization of rainwater.

[0034] A discard well 7 is installed between the interception overflow well 1 and the water storage tank 2. The tops of the interception overflow well 1 and the water storage tank 2 are flush with the ground, and filter well covers 12 are installed on the tops. The water outlet of the interception overflow well 1 and the water inlet of the discard well 7, as well as the water outlet of the discard well 7 and the water storage tank 2 are connected through a rainwater collection pipeline 4, and the rainwater collected in the interception overflow well 1 and the discard well 7 is discharged into the water storage tank 2 through the rainwater collection pipeline 4.

[0035] A protective layer 23 made of concrete and a composite impermeable membrane is arranged at the bottom of the water tank 2. A pressure measuring filter 6 is installed in the water tank 2 along the width direction of the water tank 2. The height of the pressure measuring filter 6 is higher than the height of the water tank 2. The storage tank is divided into a storage sedimentation tank 21 and a clear water tank 22 by using the pressure measuring filter 6. The side close to the interception overflow well 1 is the storage sedimentation tank 21, and correspondingly, the side away from the interception overflow well 1 is the clear water tank 22; the clear water tank 22 supplies water to the greening sprinkler 3 through the reuse water supply pipeline 5.

[0036] In addition, the recycled water supply pipeline 5 is arranged with a valve well 51 and a directly buried elastic seat sealed gate valve 52, which are used to control the flow of rainwater. When there is no need to drain, the directly buried elastic seat sealed gate valve 52 is in a normally closed state.

[0037] In the actual working process, a pressure measuring filter 6 is set, and the collected rainwater is discharged into the storage sedimentation tank 21 through the rainwater collection pipeline 4. The soil and other impurities in the rainwater are preliminarily precipitated in the storage sedimentation tank 21, so that the soil and other impurities sink to the bottom of the tank. The precipitated rainwater is filtered again through the pressure measuring filter 6, and the filtered rainwater enters the clean water tank 22. When the greening watering part 3 needs water supply, the reuse water supply pipeline 5 guides the rainwater in the clean water tank 22 into the greening watering part 3 for irrigation, thereby realizing the collection and utilization of rainwater, and filtering the rainwater to prevent the used rainwater from causing pollution.

[0038] refer to Figure 1 Specifically, in the present embodiment, the water inlet of the interception overflow well 1 away from the abandonment well 7 is connected to the park rainwater pipe 11. In the actual working process, the interception overflow well 1 is connected to the park rainwater pipe 11, and the rainwater collected in the park is transferred to the water storage tank 2 for storage, thereby increasing the water storage capacity of the water storage tank 2 and accumulating the stored rainwater for subsequent use.

[0039] refer to Figure 1 Specifically, in this embodiment, the water storage tank 2 is also equipped with a first inspection well 8 and a second inspection well 9, wherein the first inspection well 8 is installed in the storage sedimentation tank 21, and the second inspection well 9 is installed in the clean water tank 22; the tops of the first inspection well 8 and the second inspection well 9 are both penetrated through the ground, and an openable protective well cover 81 is installed on the tops. In the actual working process, the protective well cover 81 is set to prevent people from falling into the well, and the first inspection well 8 and the second inspection well 9 provide maintenance personnel with access to the storage sedimentation tank 21 and the clean water tank 22, which is convenient for the subsequent inspection, cleaning and maintenance of the storage sedimentation tank 21 and the clean water tank 22.

[0040] refer to Figure 1 Specifically, in the present embodiment, a sludge flushing device 100 is installed in the first inspection well 8, and the sludge flushing device 100 includes a backwash pump 101, a backwash water inlet pipe 102, and a backwash water outlet pipe 103, wherein the backwash pump 101 is installed on a backwash support frame 104 at the bottom of the first inspection well 8, one end of the backwash water inlet pipe 102 is installed at the water inlet of the backwash pump 101, and the other end of the backwash water inlet pipe 102 penetrates the backwash support frame 104 and the well wall of the first inspection well 8 to connect to the storage sedimentation tank 21; one end of the backwash water outlet pipe 103 is connected to the water outlet of the backwash pump 101, and the other end of the backwash water outlet pipe 103 penetrates the well wall of the first inspection well 8 to connect to the bottom of the storage sedimentation tank 21, and a plurality of water permeable holes are opened at one end of the backwash water outlet pipe 103 located at the bottom of the storage sedimentation tank 21.

[0041] Correspondingly, a sewage discharge device 200 is also installed in the first inspection well 8, and the sewage discharge device 200 includes a sewage pump 201, a sewage suction pipe 202, and a sewage discharge pipe 203, wherein the sewage pump 201 is installed at the bottom of the first inspection well 8 away from the backwash pump 101, one end of the sewage suction pipe 202 is installed at the sewage inlet, and the other end of the sewage suction pipe 202 is passed through the wall of the first inspection well 8 and connected to the storage sedimentation tank 21; one end of the sewage discharge pipe 203 is connected to the water outlet of the sewage pump 201, and the other end of the sewage discharge pipe 203 is passed through the wall of the first inspection well 8 and connected to the municipal sewage pipe network 204, so as to discharge impurities to the storage sedimentation tank 21.

[0042] In the actual working process, a sludge flushing device 100 is set up. The rainwater in the storage sedimentation tank 21 contains a large amount of sludge and other sediments. The sludge deposited in the storage sedimentation tank 21 is repeatedly flushed by the high-pressure water flow generated by the backwash pump 101, so as to stir the sludge at the bottom of the tank and prevent the formation of a dead mud area, which is not conducive to subsequent cleaning work. At the same time, a sewage discharge device 200 is set up. On the one hand, the sewage discharge pump 201 is used to discharge the sludge and other impurities in the storage sedimentation tank 21, so as to reduce the long-term retention of impurities in the storage sedimentation tank 21, reduce water pollution and odor generation; on the other hand, it prevents pipe blockage and ensures smooth drainage.

[0043] refer to Figure 1 Specifically, in the present embodiment, a rainwater lifting device 300 is installed in the second inspection well 9, and the rainwater lifting device 300 includes a lifting pump 301 and a lifting water inlet pipe 302, wherein the lifting water inlet pipe 302 is installed on a lifting support frame 303 at the bottom of the second inspection well 9, one end of the lifting water inlet pipe 302 is installed in the water inlet pipe of the lifting pump 301, and the other end of the lifting water inlet pipe 302 passes through the lifting support frame 303 and the well wall of the second inspection well 9 to be connected to the clear water tank 22; the water outlet of the lifting pump 301 is connected to the reuse water supply pipeline 5, and the other end of the reuse water supply pipeline 5 is connected to the greening sprinkler 3.

[0044] In addition, the clean water tank 22 is also connected to a municipal water supply pipe 304, on which a low-resistance backflow preventer 307 is arranged. When the rainwater in the clean water tank 22 is used up, external municipal water supply can be introduced through the municipal water supply pipe 304 to replenish the water in the clean water tank 22.

[0045] In the actual working process, a rainwater lifting device 300 is set up, and a lifting pump 301 is used to increase the water pressure of the reuse water supply pipeline 5 to ensure that the water has sufficient pressure when it is supplied to the greening watering part 3, thereby solving the problem of insufficient water supply pressure.

[0046] refer to Figure 1 Specifically, in the present embodiment, a sedimentation tank low water level alarm 105 is installed on the well wall at the bottom of the first inspection well 8 on one side of the sewage pump 201, and the sedimentation tank low water level alarm 105 is used to remind the storage sedimentation tank 21 of insufficient water; a clear water tank low water level alarm 305 is installed on the well wall at the bottom of the second inspection well 9 on the side away from the lifting pump 301, and in addition, a clear water tank high water level alarm 306 is installed on the top of the second inspection well 9 above the clear water tank low water level alarm, and the clear water tank low water level alarm 305 and the clear water tank high water level alarm 306 are used to increase the insufficient or excessive water in the clear water tank 22, so as to warn the staff to replenish water or drain water.

[0047] The implementation principle of a green building rainwater collection and utilization system in an embodiment of the present application is as follows: the interception overflow well 1 and the abandonment well 7 collect rainwater, and the collected rainwater is sent to the storage sedimentation tank 21 through the rainwater collection pipeline 4 for sedimentation, and then flows to the clear water tank 22 through the pressure measuring filter 6. Under the action of the lifting pump 301, the clear water tank 22 supplies the water in the clear water tank 22 to the greening watering part 3 through the reuse water supply pipeline 5.

[0048] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A green building rainwater collection and utilization system, characterized by: The invention comprises an interception overflow well (1), a water storage tank (2), and a greening watering piece (3) which are connected in sequence. A pressure measuring filter (6) is arranged in the water storage tank (2). The water storage tank (2) is divided into a storage sedimentation tank (21) and a clear water tank (22) through the pressure measuring filter (6). The storage sedimentation tank (21) is close to one side of the interception overflow well (1), and the clear water tank (22) is close to one side of the greening watering piece (3). The interception overflow well (1) discharges the collected rainwater into the storage sedimentation tank (21) through a rainwater collection pipeline (4), and the clear water tank (22) guides the filtered rainwater into the greening watering piece (3) through a reuse water supply pipeline (5).

2. A green building rainwater collection and utilization system according to claim 1, characterized in that: A discard well (7) is also arranged between the interception overflow well (1) and the water storage tank (2).

3. The green building rainwater collection and utilization system according to claim 1 is characterized by: A first inspection well (8) and a second inspection well (9) are installed in the water storage tank (2), and the first inspection well (8) and the second inspection well (9) are installed in the storage sedimentation tank (21) and the clean water tank (22) respectively; the tops of the first inspection well (8) and the second inspection well (9) are both penetrated through the ground, and the tops of the first inspection well (8) and the second inspection well (9) are both installed with protective well covers (81).

4. A green building rainwater collection and utilization system according to claim 3, characterized in that: The storage sedimentation tank (21) is provided with a sludge flushing device (100), the sludge flushing device (100) comprising a backwash pump (101), a backwash water inlet pipe (102), and a backwash water outlet pipe (103), the backwash water inlet pipe (102) and the backwash water outlet pipe (103) being installed on the water inlet and the water outlet of the backwash pump (101); the backwash pump (101) is installed in a first inspection well (8), the backwash water inlet pipe (102) and the backwash water outlet pipe (103) are connected to the storage sedimentation tank (21) at one end away from the backwash pump (101), and the backwash water outlet pipe (103) is located at the bottom of the storage sedimentation tank (21).

5. A green building rainwater collection and utilization system according to claim 4, characterized in that: The storage sedimentation tank (21) is also provided with a sewage discharge device (200), the sewage discharge device (200) comprising a sewage pump (201), a sewage suction pipe (202), and a sewage discharge pipe (203), the sewage suction pipe (202) and the sewage discharge pipe (203) being installed at the sewage inlet and sewage outlet of the sewage pump (201), the sewage pump (201) being installed in a first inspection well (8), the sewage suction pipe (202) having one end away from the sewage pump (201) being connected to the bottom of the storage sedimentation tank (21), and the sewage discharge pipe (203) being connected to a downstream municipal sewage pipe network (204).

6. A green building rainwater collection and utilization system according to claim 1, characterized in that: The interception overflow well (1) is connected to a park rainwater pipe (11) on the side away from the water storage tank (2), and the park rainwater pipe (11) is used to connect and transfer rainwater in the park.

7. A green building rainwater collection and utilization system according to claim 3, characterized in that: A rainwater lifting device (300) is provided in the clean water tank (22), and the rainwater lifting device (300) comprises a lifting pump (301) and a lifting water inlet pipe (302). The lifting water inlet pipe (302) is installed at the water inlet of the lifting pump (301), and the water outlet of the lifting pump (301) is connected to the reuse water supply pipeline (5). The lifting pump (301) is installed in the second inspection well (9), and the lifting water inlet pipe (302) is connected to the clean water tank (22) at one end away from the lifting pump (301).

8. The green building rainwater collection and utilization system according to claim 1 is characterized by: The clean water tank (22) is connected to a municipal water supply pipe (304), and the municipal water supply pipe (304) is used to replenish the water in the clean water tank (22).

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