Modularized rainwater collecting and recycling system

Abstract

The utility model provides a modular rainwater collecting and recycling system. The system comprises a water inlet flow dividing module, a water collecting and storing module and a filtering and recycling module. The water inlet diversion module comprises a safety diversion well and a sewage intercepting and filtering module; the water collection and storage module comprises a reservoir and PP water storage modules, and the PP water storage modules are stacked and filled in the reservoir; the filtering and recycling module comprises a lifting shaft and an integrated equipment room; and the integrated equipment room comprises a precipitation and flocculation basin, a filter and a sterilizer. Rainwater is pre-treated by arranging a safe flow dividing well and a sewage intercepting and filtering module, large foreign matters influencing water flow of a pipeline can be removed, and the water quality of the water storage tank can be improved by arranging a sewage draining well in the water storage tank and cooperating with a back flushing pipe to flush the water storage tank; besides, by arranging the sedimentation and flocculation basin, the filter and the sterilizer, water in the water storage tank is flocculated, filtered and sterilized, so that the purposes of full utilization, safety and environmental protection are achieved, and the maximum utilization value of rainwater is achieved.

Description

Technical Field

[0001] The utility model relates to the field of rainwater collection systems, in particular to a modular rainwater collection and reuse system. Background Art

[0002] Water resources in my country are unevenly distributed, and the amount of water resources per capita is far below the world average. Water shortage has become one of the important factors restricting the sustainable development of the economy and society. With the continuous acceleration of the industrialization process, the water shortage situation will become more severe. Improving the utilization of natural rainwater is an important way to improve the scarcity of water resources. There is a rainwater collection and reuse system in the existing technology. It first collects rainwater, generally collecting ground rainwater and roof rainwater, and then drains the rainwater into the rainwater collection system through rainwater pipes. After a series of filtration and purification, the purpose of reuse is achieved, which alleviates the pressure between water resources and the natural environment and reduces the pressure on the drainage system. In addition, the reused rainwater can be used to irrigate green spaces and wash roads, making up for the damage caused to the ecological environment by the urbanization process.

[0003] However, the application scenarios of existing rainwater collection and reuse systems are complex. Rainwater will wash branches, leaves, garbage, etc. into the pipes, causing blockage in the reuse system, and then causing the entire rainwater collection and reuse system to collapse. Therefore, it is particularly urgent to solve the problems of easy blockage, short service life and high maintenance rate of rainwater collection and reuse systems. Utility Model Content

[0004] In view of this, the utility model proposes a modular rainwater collection and reuse system, which aims to solve the problems of easy clogging, short service life and high maintenance rate of the rainwater collection and reuse system.

[0005] In order to achieve the above object, the utility model provides a modular rainwater collection and reuse system, comprising

[0006] An inlet diversion module, the inlet diversion module includes a safety diversion well and a pollution interception and filtration module, the safety diversion well is communicated with the pollution interception and filtration module; a collection and storage module, the collection and storage module includes a water reservoir and a PP water storage module, the PP water storage module is stacked and filled in the water reservoir, and the water outlet of the pollution interception and filtration module is communicated with the water inlet of the water reservoir; a filtration and reuse module, the filtration and reuse module includes a lifting well and an integrated equipment room, the integrated equipment room includes a sedimentation and flocculation tank, a filter, and a disinfector, the lifting well is arranged in the water reservoir, the lifting well is communicated with the sedimentation and flocculation tank through a pipeline, the sedimentation and flocculation tank is communicated with the filter through a pipeline, the filter is communicated with the disinfector through a pipeline, and a lifting water pump is arranged in the lifting well to pump rainwater from the water reservoir into the sedimentation and flocculation tank, and then discharge it outward from the sedimentation and flocculation tank after passing through the filter and the disinfector in sequence.

[0007] Furthermore, the sewage interception and filtration module includes a hanging basket sewage interception well, a rainwater discard well, and an automatic filtration well. The safety diversion well is communicated with the hanging basket sewage interception well, the hanging basket sewage interception well is communicated with the rainwater discard well, the rainwater discard well is communicated with the automatic filtration well, and the water outlet of the automatic filtration well is communicated with the water inlet of the reservoir.

[0008] Furthermore, the automatic filter well includes a vertical filter screen, an inclined plate is arranged above the filter screen, and a wastewater wellhead is arranged above the inclined plate. When the rainwater level rises, floating impurities will flow into the wastewater wellhead along the inclined plate and be discharged.

[0009] Furthermore, the bottom of the water reservoir is provided with an anti-seepage composite membrane, a sand cushion layer, a reinforced concrete bottom plate, and a plain concrete cushion layer from top to bottom, and the top of the water reservoir is provided with a sand permeation layer and an anti-seepage composite membrane from top to bottom.

[0010] Furthermore, a sewage well is provided in the water reservoir, and at least one water pump is arranged in the sewage well. When the water pump is turned on, the sewage in the water reservoir can be pumped into the sewage pipe.

[0011] Furthermore, a backwash pipe is arranged between the integrated equipment room and the water reservoir, one end of the backwash pipe is connected to the water inlet pipeline of the integrated equipment room, and the other end of the backwash pipe is connected to the water reservoir, and a pressurized water pump is arranged on the backwash pipe.

[0012] Furthermore, the backwash pipe includes a backwash main pipe and a plurality of backwash branch pipes, the backwash main pipe is connected to the plurality of backwash branch pipes, and the plurality of backwash branch pipes are distributed and laid flat on the bottom of the water reservoir.

[0013] Furthermore, a plurality of valves are arranged between the backwash main pipe and the plurality of backwash branch pipes.

[0014] Furthermore, one or more ventilation pipes are provided at the top of the water storage tank and the integrated equipment, and an insect-proof net is arranged at the mouth of the ventilation pipe. The safety diversion well also includes a coarse filter net and an anti-fall net. The coarse filter net is arranged at the front end of the water inlet pipe, and the anti-fall net is hung at the top of the main body of the safety diversion well.

[0015] Furthermore, it also includes a rainwater control box and a liquid level controller. The liquid level controller extends from the top of the lifting well into the bottom of the lifting well. The rainwater control box is connected to the liquid level controller through a signal line. The rainwater control box is also connected to the lifting water pump through a cable.

[0016] The beneficial effects of the utility model are:

[0017] The present application pre-treats rainwater by setting up a safety diversion well and a sewage interception and filtration module, which can remove large foreign objects that affect the water flow in the pipeline, such as dead branches, weeds, garbage or other floating objects, so that the water entering the reservoir does not have large impurities. By setting up a sewage well in the reservoir, the sewage in the reservoir can be pumped into the sewage pipe. When the impurities in the reservoir are precipitated or attached to the PP module, the reservoir can be flushed with a backwash pipe. The present application sets a pressurized water pump in the backwash pipe to increase the flushing force, and multiple backwash branches can be set. The valves of the corresponding backwash branches are opened as needed to flush the directional position of the reservoir, thereby improving the water quality of the reservoir. In addition, by setting a sedimentation flocculation tank, a filter, and a disinfector, the water in the reservoir is flocculated, filtered, and disinfected, so as to achieve the purpose of full utilization and safety and environmental protection, and maximize the value of rainwater utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of a modular rainwater collection and reuse system of the utility model;

[0020] Figure 2 This is a rainwater collection and reuse flow chart of a modular rainwater collection and reuse system of the utility model;

[0021] Figure 3 This is a schematic diagram of a water inlet diversion module of a modular rainwater collection and reuse system of the utility model;

[0022] Figure 4 This is a schematic diagram of a water collection and storage module of a modular rainwater collection and reuse system of the utility model;

[0023] Figure 5 This is a schematic diagram of the main structure of a filtering and recycling module of a modular rainwater collection and recycling system of the utility model;

[0024] In the figure:

[0025] 1. Inlet diversion module; 11. Safety diversion well; 111. Coarse filter; 112. Anti-fall net; 12. Sewage interception and filtration module; 121. Hanging basket sewage interception well; 122. Rainwater abandonment well; 123. Automatic filtration well;

[0026] 2. Water collection and storage module; 21. Water storage tank; 211. Anti-seepage composite membrane; 212. Sand cushion layer; 213. Reinforced concrete bottom plate; 214. Plain concrete cushion layer; 215. Sand penetration layer; 22. PP water storage module;

[0027] 3. Filtration and reuse module; 31. Lifting well; 32. Integrated equipment room; 321. Sedimentation and flocculation tank; 322. Filter; 323. Disinfector;

[0028] 4. Sewage well;

[0029] 5. Backwash pipe; 51. Backwash main pipe; 52. Backwash branch pipe;

[0030] 6. Ventilation pipe; 61. Insect-proof net. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] refer to Figure 1-Figure 5 , shows a modular rainwater collection and reuse system, which can be used in various scenarios such as parks, campuses, communities, etc., and can process roof rainwater and ground rainwater at the same time. The modular rainwater collection and reuse system of the present application includes: an inlet water diversion module 1, a water collection and storage module 2, and a filtration and reuse module 3.

[0035] The water inlet diversion module 1 includes a safety diversion well 11 and a sewage interception and filtration module 12, and the safety diversion well 11 is connected to the sewage interception and filtration module 12. The sewage interception and filtration module 12 includes a hanging basket sewage interception well 121, a rainwater abandonment well 122, and an automatic filtration well 123. The safety diversion well 11 is connected to the hanging basket sewage interception well 121, the hanging basket sewage interception well 121 is connected to the rainwater abandonment well 122, the rainwater abandonment well 122 is connected to the automatic filtration well 123, and the outlet of the automatic filtration well 123 is connected to the water inlet of the reservoir 21. Rainwater flows from the external water inlet pipe into the safety diversion well 11 and is diverted. Generally, most of the water flow will enter the sewage interception and filtration module 12 through the outlet pipe of the safety diversion well 11. When the water flow exceeds the carrying capacity, the excess part will flow into the nearest sewage well through the sewage pipe. A sewage interception hanging basket device is installed in the hanging basket sewage interception well 121, which can intercept and filter a large amount of large garbage and store garbage at the same time. After being intercepted and filtered in the hanging basket sewage interception well 121, rainwater enters the rainwater abandonment well 122. The rainwater abandonment well 122 is provided with an abandonment device, which can discharge the rainwater with serious pollution in the initial rainfall through a low-position open sewage pipe, retain relatively clean rainwater after the rainfall increases, and can automatically realize the functions of abandonment, filtration, automatic sewage discharge, etc. of the initial rainwater. The rainwater then flows from the rainwater disposal well 122 into the automatic filtration well 123. The automatic filtration well 123 is provided with an automatic filtration device. The automatic filtration device includes a vertically placed filter net. The flowing water can directly pass through the filter net and flow into the water reservoir 21. Large system impurities will be intercepted on the filter net. There is an oblique inclined plate above the filter net. When the water level rises, the floating objects will float upward along the inclined plate and slide into the wastewater outlet to be flushed away, thereby ensuring the cleanliness of the rainwater flowing into the water reservoir 21.

[0036] The water collection and storage module 2 includes a water storage tank 21 and a PP water storage module 22. The PP water storage module 22 is in a rectangular shape, and the main material is recycled PP polypropylene. Multiple PP water storage modules 22 are stacked and filled in the water storage tank 21. The water outlet of the sewage interception and filtration module 12 is connected to the water inlet of the water storage tank 21. The water storage tank 21 is in a rectangular shape as a whole. The bottom of the water storage tank 21 is respectively provided with an impermeable composite membrane 211, a sand cushion layer 212, a reinforced concrete bottom plate 213, and a plain concrete cushion layer 214 from top to bottom. The top of the water storage tank 21 is respectively provided with a sand permeable layer 215 and an impermeable composite membrane 211 from top to bottom. In this embodiment, the impermeable composite membrane 211 is two cloths and one membrane, the two cloths are two geotextiles, and the one membrane is an impermeable membrane. The impermeable membrane adopts MDPE or LLDPE impermeable membrane, and the geotextile adopts acid-alkali resistant PP geotextile. The anti-seepage membrane joint adopts double-pass electric fusion welding, and the anti-seepage membrane is arranged on the sandwich of two geotextiles. In other embodiments, if there is no infiltration requirement, the sand infiltration layer 215 at the top of the reservoir 21 can also be made of wide sand or cooked soil.

[0037] The filtering and recycling module 3 includes a lifting well 31 and an integrated equipment room 32. A lifting water pump is provided in the lifting well 31, and a liquid level controller extends from the top of the lifting well 31 into the bottom of the lifting well 31. A liquid level sensor is provided on the liquid level controller, and the liquid level information can be transmitted to the rainwater control box through a signal line. The rainwater control box is also connected to the lifting water pump through a cable. The integrated equipment room 32 includes a sedimentation and flocculation tank 321, a filter 322, and a disinfector 323. The lifting well 31 is arranged in the water storage tank 21. The lifting well 31 is connected to the sedimentation and flocculation tank 321 through a pipeline. The sedimentation and flocculation tank 321 is connected to the filter 322 through a pipeline. The filter 322 is connected to the disinfector 323 through a pipeline. A lifting water pump is arranged in the lifting well 31 to pump rainwater from the water storage tank 21 into the sedimentation and flocculation tank 321, and then the rainwater is discharged from the sedimentation and flocculation tank 321 after passing through the filter 322 and the disinfector 323 in sequence.

[0038] In some specific embodiments, a sewage well 4 is also provided in the water reservoir 21, and at least one water pump is configured in the sewage well 4. When the water pump is turned on, the sewage in the water reservoir 21 can be pumped into the sewage pipe. The water pump in the sewage well 4 is connected to the rainwater control box through a line. When the warning water level is reached, the water reservoir 21 is cleaned, or when necessary, the water pump can be automatically or actively turned on to discharge the rainwater in the water reservoir 21.

[0039] In some specific embodiments, a backwash pipe 5 is arranged between the integrated equipment room 32 and the water reservoir 21, one end of the backwash pipe 5 is connected to the water inlet pipeline of the integrated equipment room 32, and the other end of the backwash pipe 5 is connected to the water reservoir 21, and a pressurized water pump is arranged on the backwash pipe 5. Since rainwater will bring in silt from the ground or roof, after the system has been used for a period of time, the PP water storage module 22 will often be attached with a lot of silt, so it is necessary to clean the PP water storage module 22 regularly. By setting a backwash pipe 5 on the PP water storage module 22 at the bottom of the water reservoir 21, and with the help of the pressurized water flow impact provided by the pressurized water pump, the water reservoir 21 can be sprayed and washed, and the mud and sand attached to the PP water storage module 22 and the sand and soil at the bottom of the water reservoir are fully mixed and discharged to the sewage pipe through the water pump of the sewage well 4.

[0040] In some specific embodiments, the backwash pipe 5 includes a backwash main pipe 51 and a plurality of backwash branch pipes 52, the backwash main pipe 51 is connected to the plurality of backwash branch pipes 52, and the plurality of backwash branch pipes 52 are distributed and laid flat at the bottom of the water reservoir 21. The backwash main pipe 51 can realize the unified control of all pipelines, reduce the number of water pumps used, and reduce the system cost. The backwash branch pipes 52 can ensure that the entire water reservoir 21 can be covered more evenly during flushing. A valve is arranged between the backwash main pipe 51 and the plurality of backwash branch pipes 52. By controlling the valve switch, partial areas can be flushed in a directional manner to achieve a better cleaning effect.

[0041] In some specific implementations, one or more ventilation pipes 6 are provided on the top of the water reservoir 21 and the integrated equipment room 32 , and an insect-proof net 61 is disposed at the pipe opening of the ventilation pipe 6 .

[0042] In some specific embodiments, the safety diversion well 11 further includes a coarse filter 111 and an anti-fall net 112. The coarse filter 111 is arranged at the front end of the water inlet pipe, and the anti-fall net 112 is suspended at the top of the main body of the safety diversion well. The coarse filter 111 has a large mesh and is used to filter large debris washed by running water after heavy rain, such as dead branches and grass, packaging bags, plastic bottles, etc. The anti-fall net 112 is configured as a coarse hemp rope net or a steel net to prevent pedestrians from accidentally falling.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular rainwater collection and reuse system, characterized in that: include: An inlet water diversion module, the inlet water diversion module comprising a safety diversion well and a pollution interception and filtering module, the safety diversion well being in communication with the pollution interception and filtering module; A water collection and storage module, the water collection and storage module comprises a water reservoir and a PP water storage module, the PP water storage module is stacked and filled in the water reservoir, and the water outlet of the sewage interception and filtration module is connected to the water inlet of the water reservoir; The filtration and reuse module includes a lifting well and an integrated equipment room. The integrated equipment room includes a sedimentation and flocculation tank, a filter, and a disinfector. The lifting well is arranged in the water storage tank. The lifting well is connected with the sedimentation and flocculation tank through a pipeline. The sedimentation and flocculation tank is connected with the filter through a pipeline. The filter is connected with the disinfector through a pipeline. A lifting water pump is arranged in the lifting well to draw rainwater from the water storage tank into the sedimentation and flocculation tank, and then discharged from the sedimentation and flocculation tank after passing through the filter and the disinfector in sequence.

2. The modular rainwater collection and reuse system according to claim 1 is characterized in that: The sewage interception and filtration module includes a hanging basket sewage interception well, a rainwater discard well, and an automatic filtration well. The safety diversion well is communicated with the hanging basket sewage interception well, the hanging basket sewage interception well is communicated with the rainwater discard well, the rainwater discard well is communicated with the automatic filtration well, and the water outlet of the automatic filtration well is communicated with the water inlet of the water reservoir.

3. The modular rainwater collection and reuse system according to claim 2 is characterized in that: The automatic filtering well comprises a vertical filtering net, an inclined plate is arranged above the filtering net, a wastewater wellhead is arranged above the inclined plate, and when the rainwater level rises, floating impurities will flow into the wastewater wellhead along the inclined plate and be discharged.

4. The modular rainwater collection and reuse system according to claim 1 is characterized in that: The bottom of the water reservoir is provided with an anti-seepage composite membrane, a sand cushion layer, a reinforced concrete bottom plate and a plain concrete cushion layer from top to bottom, and the top of the water reservoir is provided with a sand permeable layer and an anti-seepage composite membrane from top to bottom.

5. The modular rainwater collection and reuse system according to claim 1 is characterized in that: A sewage well is also provided in the water reservoir, and at least one water pump is arranged in the sewage well. When the water pump is turned on, the sewage in the water reservoir can be pumped into the sewage pipe.

6. The modular rainwater collection and reuse system according to claim 1 is characterized in that: A backwash pipe is arranged between the integrated equipment room and the water reservoir, one end of the backwash pipe is connected to the water inlet pipeline of the integrated equipment room, and the other end of the backwash pipe is connected to the water reservoir, and a pressurized water pump is arranged on the backwash pipe.

7. The modular rainwater collection and reuse system according to claim 6 is characterized in that: The backwash pipe comprises a backwash main pipe and a plurality of backwash branch pipes. The backwash main pipe is connected with the plurality of backwash branch pipes, and the plurality of backwash branch pipes are distributed and laid flat on the bottom of the water storage tank.

8. The modular rainwater collection and reuse system according to claim 7 is characterized in that: A plurality of valves are arranged between the backwash main pipe and the plurality of backwash branch pipes.

9. The modular rainwater collection and reuse system according to claim 1, characterized in that: One or more ventilation pipes are arranged at the top between the water reservoir and the integrated equipment, and an insect-proof net is arranged at the mouth of the ventilation pipe. The safety diversion well also includes a coarse filter net and an anti-fall net. The coarse filter net is arranged at the front end of the water inlet pipe, and the anti-fall net is suspended at the top of the main body of the safety diversion well.

10. The modular rainwater collection and reuse system according to claim 1, characterized in that: It also includes a rainwater control box and a liquid level controller. The liquid level controller extends from the top of the lifting well into the bottom of the lifting well. The rainwater control box is connected to the liquid level controller through a signal line. The rainwater control box is also connected to the lifting water pump through a cable.

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