Rainwater recycling device

Abstract

The utility model discloses a rainwater recycling device, which relates to the technical field of rainwater recycling, and comprises a rainwater collecting unit, an ecological purification unit and a water recycling unit, the rainwater collecting unit comprises a water storage disc and a storage pool, the storage pool is used for storing rainwater, a planting disc is arranged in the water storage disc, a rainwater circulating pump is arranged at the bottom of the storage pool, and the ecological purification unit is connected with the rainwater recycling unit. The rainwater circulation header pipe is communicated with the water inlet end of the planting disc, the water outlet pipe is communicated with the water outlet end of the planting disc, the constructed wetland is arranged in the planting disc to ecologically purify rainwater flowing into the planting disc from the rainwater circulation header pipe, and the purified rainwater flows out of the water outlet pipe and flows into the storage pool through the water outlet pipe; the reuse water unit comprises a reuse water pump and a reuse water header pipe, the reuse water pump is arranged in the storage pool, one end of the reuse water header pipe is used for being communicated with the reuse water pump, the other end of the reuse water header pipe is used for being communicated with the purified water collection and utilization unit, the structure is simple, use is convenient, and the energy-saving, low-carbon and environment-friendly requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to rainwater reuse technical field, especially a rainwater reuse device. BACKGROUND

[0002] Rainwater reuse refers to the process of collecting, treating and storing rainwater for reuse when needed. The main reasons for rainwater reuse are as follows:

[0003] Water conservation: Rainwater is a natural water resource that can be used for irrigation, car washing, toilet flushing and other non-drinking purposes, thereby reducing the demand for tap water and conserving water resources.

[0004] Reducing flood disasters: Rainwater reuse can reduce the flow of rainwater in urban drainage systems and reduce the risk of flood disasters.

[0005] Improving the environment: Rainwater reuse can reduce the erosion of urban surfaces by rainwater, reduce soil erosion and water pollution, and improve the urban environment.

[0006] Reducing costs: Rainwater reuse can reduce the demand for tap water, thereby reducing water costs.

[0007] Improving water resource utilization: Rainwater reuse can effectively utilize rainwater resources and improve water resource utilization.

[0008] In summary, rainwater reuse is a sustainable water resource management approach that can effectively address urban water shortages and flood disasters, while also reducing water costs and improving the environment.

[0009] The rainwater reuse device in the prior art is generally composed of a water storage tank, a water purification unit and a clean water tank. The water purification unit generally uses physical filtration, chemical precipitation and other processes to purify rainwater. The treatment process requires power consumption and the use of filter materials, coagulants and other materials, which does not meet the initial intention of energy-saving, low-carbon and environmental protection for rainwater reuse. UTILITY MODEL CONTENT

[0010] The utility model aims to provide a rainwater reuse device to solve the problems in the prior art, with simple structure, convenient use and energy-saving, low-carbon and environmental protection.

[0011] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0012] The utility model provides a rainwater recycling device, include: rainwater collection unit, ecological purification unit and recycling water unit, rainwater collection unit includes water storage tray and storage pool, the storage pool is used for storing rainwater, the bottom of water storage tray with the top of storage pool intercommunication, the top of water storage tray is used for receiving the rainwater in the process of rainfall and makes rainwater flow into the storage pool through the bottom of water storage tray, ecological purification unit includes rainwater circulating pump, rainwater circulating main pipe, outlet pipe, planting tray and artificial wetland, planting tray sets up in water storage tray, rainwater circulating pump sets up in the bottom of storage pool, one end of rainwater circulating main pipe with rainwater circulating pump intercommunication, the other end with the water inlet side of planting tray intercommunication, one end of outlet pipe with the water outlet side of planting tray away from rainwater circulating main pipe side intercommunication, artificial wetland sets up in planting tray to carry out ecological purification to rainwater from rainwater circulating main pipe and flow into planting tray, and the rainwater after purification flows out from outlet pipe and flows into storage pool through outlet pipe, recycling water unit includes recycling water pump and recycling water main pipe, recycling water pump sets up in storage pool, one end of recycling water main pipe is used for with recycling water pump intercommunication, the other end is used for with purification water collection and utilization unit intercommunication.

[0013] Preferably, the artificial wetland comprises a first graded gravel layer, a planting soil layer and a second graded gravel layer, the first graded gravel layer, the planting soil layer and the second graded gravel layer are sequentially arranged from the water inlet end to the water outlet end of the planting tray.

[0014] Preferably, the artificial wetland further comprises waterlogged plant, the waterlogged plant is planted in the planting soil layer.

[0015] Preferably, the artificial wetland further comprises a plurality of rainwater circulating branch pipes, one end of each rainwater circulating branch pipe is in communication with the rainwater circulating main pipe, and the other end is in communication with the water inlet end of the planting tray.

[0016] Preferably, the artificial wetland further comprises an artificial grid, the water outlet end of the planting tray is provided with a water outlet hole, the water outlet hole is in communication with the outlet pipe, and the artificial grid is arranged at the water outlet hole.

[0017] Preferably, the artificial wetland further comprises a check well and a backflow main pipe, the outlet pipe is in communication with the backflow main pipe in the check well away from the planting tray, and the other end of the backflow main pipe is in communication with the top of the storage pool.

[0018] Preferably, the artificial wetland further comprises an overflow pipe, the overflow pipe is in communication with the backflow main pipe in the check well to discharge excess rainwater through the overflow pipe when the storage pool is full of water.

[0019] Preferably, the artificial wetland further comprises a fence, the fence is arranged outside the outer side of the periphery of the water storage tray.

[0020] The utility model discloses relative to prior art has obtained following technical effect:

[0021] The utility model provides a rainwater recycling device, through setting up the water storage tray and storage pool realize the collection and storage function to rainwater, the water storage tray top receives rainwater and makes it flow into the storage pool, has enlarged the area of rainwater collection, has improved rainwater collection's efficiency, through setting up ecological purification unit, through rainwater circulating pump, rainwater in storage pool is transported to planting tray, utilizes artificial wetland and carries out ecological purification. This mode does not need to use chemical reagent, and environmental protection is pollution-free. Planting tray sets up in the water storage tray, makes full use of space, improves the integration of device. Purified rainwater returns to the storage pool, realizes the circulation purification of rainwater, and the water quality of rainwater in the storage pool is improved unceasingly, when needing to use water, the recycling water pump transports the purified rainwater in the storage pool through recycling water main pipe to the purified water collection and utilization unit and uses, realizes the recycling collection of rainwater, and saves water resources. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0023] Figure 1 The planar arrangement of the rainwater recycling device provided by the utility model is shown in the figure.

[0024] Figure 2 For Figure 1 The section view at 1-1 in the figure.

[0025] Figure 3 For Figure 1 The section view at 2-2 in the figure.

[0026] In the figure: 1, water storage tray, 2, storage pool, 3, rainwater circulating pump, 4, rainwater circulating main pipe, 5, water outlet pipe, 6, planting tray, 7, artificial wetland, 8, recycling water pump, 9, recycling water main pipe, 10, first grade broken stone layer, 11, planting soil layer, 12, second grade broken stone layer, 13, waterlogging-resistant plant, 15, artificial grid, 16, inspection well, 17, return main pipe, 18, overflow pipe, 19, fence, 20, water outlet hole, 21, rainwater circulating branch pipe, 22, purified water collection and utilization unit, 23, ground. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be described clearly and completely below with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0028] The utility model discloses a rainwater recycling device, to solve the prior art problem, simple structure, convenient to use, meet the requirement of energy saving low carbon environmental protection.

[0029] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below with the drawings and specific embodiments.

[0030] The utility model provides a rainwater recycling device, as shown in Figures 1 to 3 The utility model discloses a rainwater recycling device, to solve the prior art problem, simple structure, convenient to use, meet the requirement of energy saving low carbon environmental protection. The rainwater recycling device comprises a rainwater collecting unit, an ecological purification unit and a recycling water unit, the rainwater collecting unit comprises a water storage tray 1 and a storage pool 2, the storage pool 2 is used to store rainwater, the bottom of the water storage tray 1 is communicated with the top of the storage pool 2, the top of the water storage tray 1 is used to receive rainwater in the process of raining and makes rainwater flow into the storage pool 2 through the bottom of the water storage tray 1, the ecological purification unit comprises a rainwater circulating pump 3, a rainwater circulating main pipe 4, a water outlet pipe 5, a planting tray 6 and an artificial wetland 7, the planting tray 6 is arranged in the water storage tray 1, the rainwater circulating pump 3 is arranged at the bottom of the storage pool 2, one end of the rainwater circulating main pipe 4 is communicated with the rainwater circulating pump 3, the other end is communicated with the water inlet end of the planting tray 6, one end of the water outlet pipe 5 is communicated with the water outlet end of the planting tray 6 away from the rainwater circulating main pipe 4 side, the artificial wetland 7 is arranged in the planting tray 6 to carry out ecological purification to rainwater flowing into the planting tray 6 from the rainwater circulating main pipe 4, and the purified rainwater flows out from the water outlet pipe 5 and flows into the storage pool 2 through the water outlet pipe 5, the recycling water unit comprises a recycling water pump 8 and a recycling water main pipe 9, the recycling water pump 8 is arranged in the storage pool 2, one end of the recycling water main pipe 9 is used to be communicated with the recycling water pump 8, and the other end is used to be communicated with a purified water collecting and utilizing unit 22. The rainwater recycling device realizes the collection, purification and recycling of rainwater through the synergistic effect of the rainwater collecting unit, the ecological purification unit and the recycling water unit. The water storage tray 1 and the storage pool 2 of the rainwater collecting unit can effectively collect rainwater, provide water source for subsequent purification and recycling. The ecological purification unit utilizes the artificial wetland 7 to carry out ecological purification to rainwater, does not need to use chemical reagent, is environmental protection and has no pollution. The recycling water unit can deliver the purified rainwater to the purified water collecting and utilizing unit 22, and the purified water collecting and utilizing unit 22 can be a collecting pool, a water transport vehicle, a water pipeline and other prior art that can collect and utilize the purified water. The rainwater recycling is realized at the purified water collecting and utilizing unit 22, and water resource is saved.

[0031] In a preferred embodiment, the constructed wetland 7 comprises a first graded gravel layer 10, a planting soil layer 11 and a second graded gravel layer 12, which are arranged in sequence from the water inlet end to the water outlet end of the planting tray 6. The layered constructed wetland 7 can effectively filter and purify rainwater. The first graded gravel layer 10 can preliminarily filter large-particle impurities in rainwater, the plant roots and soil in the planting soil layer 11 can adsorb and absorb organic matter and nutrients in rainwater, and the second graded gravel layer 12 can further filter and purify rainwater, thereby improving the purification effect.

[0032] In a preferred embodiment, the constructed wetland 7 further comprises waterlogged plants 13 planted in the planting soil layer 11. The planting of the waterlogged plants 13 can enhance the purification capacity of the constructed wetland 7. The roots of the waterlogged plants 13 can absorb nutrients such as nitrogen and phosphorus in rainwater, and at the same time, can increase the air permeability and water retention of the soil, promote the growth and reproduction of microorganisms, and improve the purification effect.

[0033] In a preferred embodiment, a plurality of rainwater circulation branch pipes 21 are further included, one end of each rainwater circulation branch pipe 21 is in communication with the rainwater circulation main pipe 4, and the other end is used to communicate with the water inlet end of the planting tray 6. The arrangement of the plurality of rainwater circulation branch pipes 21 can improve the uniformity of rainwater distribution in the planting tray 6, and ensure that the constructed wetland 7 can fully play a purifying role. At the same time, the flow of rainwater can also be increased, and the purification efficiency can be improved.

[0034] In a preferred embodiment, an artificial grid 15 is further included, the water outlet end of the planting tray 6 is provided with a water outlet hole 20 for communicating with the water outlet pipe 5, and the artificial grid 15 is arranged at the water outlet hole 20. The artificial grid 15 can prevent debris in the planting tray 6 from entering the water outlet pipe 5, thereby avoiding pipe blockage. At the same time, the artificial grid 15 can also play a certain filtering role, thereby improving the purification effect.

[0035] In a preferred embodiment, an inspection well 16 and a backflow main pipe 17 are further included, the water outlet pipe 5 is in communication with the backflow main pipe 17 in the inspection well 16 away from the planting tray 6, the other end of the backflow main pipe 17 is in communication with the top of the storage tank 2, and the overflow pipe 18 is arranged to prevent rainwater in the storage tank 2 from overflowing, thereby ensuring the safe operation of the system. The arrangement of the inspection well 16 and the backflow main pipe 17 facilitates the inspection and maintenance of the water outlet pipe 5 and the backflow main pipe 17. At the same time, it can also ensure that the purified rainwater can flow back to the storage tank 2 smoothly, thereby providing a guarantee for subsequent reuse.

[0036] In a preferred embodiment, an overflow pipe 18 is further included, which is in communication with the return main 17 within the inspection well 16 to discharge the excess rainwater through the overflow pipe 18 after the storage pool 2 is filled with water. When the storage pool 2 is filled with water, the excess rainwater can be discharged through the overflow pipe 18 to avoid problems such as waterlogging.

[0037] In a preferred embodiment, a fence 19 is further included, which is arranged outside the outer periphery of the water storage tray 1, and a safety warning sign is hung outside the fence 19. The fence 19 can play a protective role to prevent people or animals from entering the area of the water storage tray 1, thereby ensuring safety. At the same time, the fence 19 can also beautify the environment and improve the overall appearance of the device.

[0038] In a preferred embodiment, the rainwater collecting unit and the ecological purification unit are arranged below the ground surface 23. Arranging the rainwater collecting unit and the ecological purification unit below the ground surface 23 does not occupy the valuable space on the ground surface 23, and is particularly suitable for areas where land resources are scarce, thereby improving the utilization rate of land. Being located below the ground surface 23 can reduce the interference and damage of human activities and vehicles to the system, thereby improving the stability and reliability of the system. The underground environment temperature is relatively stable, which can reduce the risk of freezing of rainwater in winter and ensure that the system can normally operate in a low-temperature environment. In summer, the high temperature can be avoided to adversely affect the microorganisms in the system. The system does not affect the landscape of the ground surface 23, and the surrounding environment is more tidy and beautiful, and is suitable for places with high landscape requirements, such as parks and residential areas.

[0039] The principle and implementation mode of the specific examples in the utility model are described, and the above embodiment is only used to help understand the method and core idea of the utility model. Meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A rainwater recycling device, characterized by: The utility model relates to a rainwater collection unit, an ecological purification unit, a reclaimed water unit and a fence. The rainwater collection unit comprises a water storage tray and a storage pool, the bottom of the water storage tray is in communication with the top of the storage pool, and the top of the water storage tray is used for receiving rainwater during rainfall and making the rainwater flow into the storage pool through the bottom of the water storage tray. The ecological purification unit comprises a rainwater circulation pump, a rainwater circulation main pipe, a water outlet pipe, a planting tray and an artificial wetland. The rainwater circulation pump is arranged at the bottom of the storage pool, one end of the rainwater circulation main pipe is in communication with the rainwater circulation pump, and the other end is in communication with the water inlet end of the planting tray.

2. The rainwater recycling device according to claim 1, characterized in that: The artificial wetland is arranged in the planting tray to ecologically purify the rainwater flowing into the planting tray from the rainwater circulation main pipe and make the purified rainwater flow out from the water outlet pipe and into the storage pool.

3. The rainwater recycling device according to claim 2, characterized in that: The reclaimed water unit comprises a reclaimed water pump and a reclaimed water main pipe.

4. The rainwater recycling device according to claim 3, characterized in that: The reclaimed water pump is arranged in the storage pool, one end of the reclaimed water main pipe is used for being in communication with the reclaimed water pump, and the other end is used for being in communication with a purified water collection and utilization unit.

5. The rainwater recycling device according to claim 4, characterized in that: The artificial wetland comprises a first graded gravel layer, a planting soil layer and a second graded gravel layer, which are arranged in sequence from the water inlet end to the water outlet end of the planting tray.

6. The rainwater recycling device according to claim 5, wherein: The artificial wetland further comprises water-submergence-resistant plants planted in the planting soil layer.

7. The rainwater recycling device according to claim 6, characterized in that: The rainwater collection unit further comprises a plurality of rainwater circulation branch pipes, one end of each rainwater circulation branch pipe is in communication with the rainwater circulation main pipe, and the other end is used for being in communication with the water inlet end of the planting tray.

8. The rainwater recycling device according to claim 1, wherein: The planting tray is provided with a water outlet hole used for being in communication with the water outlet pipe, and the artificial grid is arranged at the water outlet hole. The rainwater collection unit further comprises a check well and a backflow main pipe. The water outlet pipe is in communication with the backflow main pipe in the check well away from the planting tray, and the other end of the backflow main pipe is in communication with the top of the storage pool. The rainwater collection unit further comprises an overflow pipe in communication with the backflow main pipe in the check well to discharge excess rainwater through the overflow pipe when the storage pool is full of water. The fence is arranged outside the water storage tray.

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