Water collection and drainage system capable of recycling rainwater and preventing urban waterlogging

Abstract

The utility model relates to the field of water collection and drainage in municipal engineering, in particular to a water collection and drainage system capable of recycling rainwater and preventing urban inland inundation, which comprises a plurality of water collection wells and a plurality of drainage wells. A soil layer between the water collecting well and the drainage well is divided into an upper pipeline arrangement layer and a lower rainwater permeation layer, a rainwater collecting mother pipe communicating the water collecting well and the drainage well is arranged on the pipeline arrangement layer, and the end, close to the drainage well, of the rainwater collecting mother pipe is higher than the end, close to the water collecting well, of the rainwater collecting mother pipe. A plurality of rainwater collecting branch pipes are arranged between the rainwater collecting main pipe and the ground, and a rainwater recycling assembly and a flood discharge and drainage assembly are arranged in the drainage well. The utility model has the advantages of simple structure, multiple purposes, high rainwater utilization rate and obvious water-saving effect, and can be widely used for recycling rainwater and preventing urban inland inundation.

Description

Technical Field

[0001] The utility model relates to the field of water collection and drainage in municipal engineering, and in particular provides a water collection and drainage system for recycling rainwater and preventing urban waterlogging. Background Art

[0002] Traditional flood control facilities and rainwater utilization systems have problems such as single function, low efficiency, and low intelligence. Therefore, the development of a new type of intelligent flood control well and rainwater comprehensive utilization system is of great practical significance. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a rainwater collection and drainage system for recycling rainwater and preventing urban waterlogging.

[0004] The utility model is implemented in this way: a drainage system for recycling rainwater and preventing urban waterlogging is provided, comprising a water collection well and a drainage well, wherein a plurality of water collection wells are distributed and arranged around a drainage well, and the soil layer between the water collection well and the drainage well is divided into an upper pipeline setting layer and a lower rainwater infiltration layer, a rainwater collecting main pipe connecting the water collection well and the drainage well is provided in the pipeline setting layer, an end of the rainwater collecting main pipe close to the drainage well is higher than an end close to the water collection well, a plurality of rainwater collecting branch pipes are provided between the rainwater collecting main pipe and the ground, and a rainwater recycling component and a flood discharge and drainage component are provided in the drainage well.

[0005] Preferably, the inner walls of the water collection well and the drainage well are composed of a permeable brick layer close to the well cavity and a gravel layer close to the permeable brick layer. At the position of the rainwater infiltration layer, there is a gravel layer between the gravel layers of the water collection well and the drainage well.

[0006] Further preferably, an antifreeze layer is provided above the gravel layer and a waterproof base layer is provided below the gravel layer, and the pipeline setting layer is provided above the antifreeze layer.

[0007] Further preferably, the rainwater recovery component includes a purified water pump arranged at the bottom of the drainage well and a purified water drainage pipe connected to the purified water pump, and the purified water drainage pipe extends out of the drainage well and is connected to the purified water comprehensive utilization system.

[0008] Further preferably, the flood discharge and drainage assembly includes a flood control water pump arranged at the bottom of the drainage well and a flood control and flood discharge drainage pipe connected to the flood control water pump, and the flood control and flood discharge drainage pipe extends out of the drainage well and is connected to the river.

[0009] It is further preferred that a sewage storage tank is provided at the bottom of the water collection well and the drainage well, and a sewage discharge component is provided for discharging sewage. The sewage discharge component includes a sewage pump and a sewage pipe. When discharging sewage, the sewage pump is arranged in the sewage storage tank, one end of the sewage pipe is connected to the sewage pump, and the other end extends out of the water collection well and the drainage well to connect to the sewage pipe.

[0010] It is further preferred that a well wall flushing assembly is included, which includes a high-pressure flushing pipe and a flushing nozzle. The high-pressure flushing pipe includes a flushing main pipe and multiple flushing branches horizontally arranged on the main pipe, and a flushing nozzle is provided at the end of each flushing branch.

[0011] Further preferably, a first sensor is provided at a certain height on the wall of the drainage well, and a second sensor is provided at one end of the rainwater collection main pipe connected to the drainage well.

[0012] Further preferably, a rainwater collection port is provided at the location where the rainwater collection branch pipe is connected to the ground.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] This utility model provides a simple, multi-purpose, high-utilization, and water-saving rainwater collection and drainage system for preventing urban waterlogging. It absorbs, stores, infiltrates, and purifies rainwater during rain, releasing the stored water for use when needed. While ensuring safe urban drainage and waterlogging prevention, it maximizes the accumulation, infiltration, and purification of rainwater in urban areas, promoting the utilization of rainwater resources and protecting the ecological environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the distribution of the water collection well, drainage well, and rainwater mobile phone outlet of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the rainwater collection main pipe and the rainwater collection branch pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] refer to Figure 1 、 Figure 2 and Figure 3The utility model provides a rainwater collection and drainage system for recycling and preventing urban waterlogging, including a water collection well 1 and a drainage well 2. The water collection wells 1 are distributed in the form of a plurality of water collection wells 1 surrounding a drainage well 2. The soil layer between the water collection well 1 and the drainage well 2 is divided into an upper pipeline setting layer and a lower rainwater infiltration layer. A rainwater collecting main pipe 18 connecting the water collection well 1 and the drainage well 2 is provided in the pipeline setting layer. The end of the rainwater collecting main pipe 18 close to the drainage well 2 is higher than the end close to the water collection well 1. A plurality of rainwater collecting branch pipes 19 are provided between the rainwater collecting main pipe 18 and the ground. A rainwater recycling component and a flood discharge and drainage component are provided in the drainage well 2.

[0021] This system is applied to urban streets, residential areas, parks, squares and other places. First, rainwater is collected by rainwater collection branch pipes 19 distributed throughout the city, transported through the rainwater collection branch pipes 19 into the rainwater collection main pipe 18, and flows by gravity into the water collection well 1 through the rainwater collection main pipe 18. As the water level in the water collection well 1 rises, the rainwater slowly flows through the rainwater infiltration layer into the drainage well 2. When the water level rises to a certain height, the rainwater recovery component starts. During heavy rain periods, the instantaneous precipitation is large, and when the water level in the water collection well 1 rises and exceeds the warning line, the rainwater quickly flows into the drainage well 2 through the rainwater collection main pipe 18. At this time, the rainwater recovery component is closed, and the flood discharge and drainage component is opened, and the rainwater is quickly discharged into the river through the flood discharge and drainage component, reducing the risk of urban flooding. The utility model can not only effectively prevent and control floods, but also make full use of rainwater resources, realizing the sustainable management of urban water resources.

[0022] In order to achieve effective water permeability in the rainwater infiltration layer, as an improvement to the technical solution, the inner walls of the water collection well 1 and the drainage well 2 are composed of a permeable brick layer 5 close to the well cavity and a gravel layer 6 close to the permeable brick layer 5. At the position of the rainwater infiltration layer, there is a gravel layer 22 between the gravel layer 6 of the water collection well 1 and the drainage well 2.

[0023] When rainwater seeps, it slowly passes through the three-level filtration of the permeable brick layer 5, the crushed stone layer 6 and the gravel layer 22 and flows into the drainage well 2. The permeable brick layer 5 and the crushed stone layer 6 can prevent the gravel in the gravel layer 22 from flowing into the well while playing a good filtering role.

[0024] Preferably, the antifreeze layer 3 is located above the gravel layer 22 , and the waterproof base layer 4 is located below the gravel layer 22 , and the pipeline setting layer is arranged above the antifreeze layer 3 .

[0025] As a specific implementation method of the rainwater recycling component, the rainwater recycling component includes a purified water pump 12 arranged at the bottom of the drainage well 2 and a purified water drainage pipe 13 connected to the purified water pump 12. The purified water drainage pipe 13 extends out of the drainage well 2 and is connected to the purified water comprehensive utilization system 21.

[0026] During water purification, when the water level rises to a certain height, the purified water pump 12 is started, and the purified water is transported to the purified water comprehensive utilization system 21 through the purified water drainage pipe 13. The purified water comprehensive utilization system 21 can perform graded treatment according to the purpose of the water. The water that has been disinfected by ultraviolet light, chlorine dioxide, etc. can be used for green irrigation, landscape water, municipal cleaning water, etc.; after deeper treatment, such as reverse osmosis, ultrafiltration, etc., it can be used for urban domestic water.

[0027] As a specific implementation method of the flood discharge and drainage component, the flood discharge and drainage component includes a flood control water pump 14 arranged at the bottom of the drainage well 2 and a flood control flood discharge and drainage pipe 15 connected to the flood control water pump 14. The flood control flood discharge and drainage pipe 15 extends out of the drainage well 2 and is connected to the river channel.

[0028] During heavy rain, when the instantaneous rainfall is large, the flood control water pump 14 in the flood discharge and drainage assembly is turned on to quickly discharge the rainwater into the river through the flood control and flood discharge drainage pipe 15, thereby reducing the risk of urban flooding.

[0029] In order to regularly clean the silt and debris deposited in the water collection well 1 and the drainage well 2, as an improvement to the technical solution, a sewage storage tank 7 is provided at the bottom of the water collection well 1 and the drainage well 2, and a sewage discharge component is provided for sewage discharge. The sewage discharge component includes a sewage pump 8 and a sewage pipe 9. When discharging sewage, the sewage pump 8 is arranged in the sewage storage tank 7, one end of the sewage pipe 9 is connected to the sewage pump 8, and the other end extends out of the water collection well 1 and the drainage well 2 to connect to the sewage pipe.

[0030] In order to regularly flush the well wall, as an improvement to the technical solution, a well wall flushing assembly is also included. The well wall flushing assembly includes a high-pressure flushing pipe 10 and a flushing nozzle 11. The high-pressure flushing pipe includes a flushing main pipe and multiple flushing branches horizontally arranged on the main pipe. A flushing nozzle 11 is provided at the end of each flushing branch pipe.

[0031] To achieve automated control, a control component is also provided. Specifically, a first sensor 16 is installed at a certain height on the wall of the drainage well 2, and a second sensor 17 is installed at the end of the rainwater collection main pipe 18 connected to the drainage well 2. Under normal circumstances, when infiltrated rainwater reaches the first sensor 16, the first sensor 16 transmits a signal to the controller, which controls the activation of the purified water pump 12. In the event of heavy rain, rainwater flows out of the rainwater collection main pipe 18, and the second sensor 17 transmits a signal to the controller, which controls the activation of the flood control pump 14.

[0032] In order to facilitate water collection on the ground, as an improvement to the technical solution, a rainwater collection port 20 is provided at the location where the rainwater collection branch pipe 19 is connected to the ground.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A rainwater collection and drainage system for recycling rainwater and preventing urban waterlogging, characterized in that: The invention comprises a water collection well (1) and a drainage well (2), wherein a plurality of water collection wells (1) are distributed and arranged around a drainage well (2); the soil layer between the water collection well (1) and the drainage well (2) is divided into an upper pipeline setting layer and a lower rainwater infiltration layer; a rainwater collection main pipe (18) connecting the water collection well (1) and the drainage well (2) is provided in the pipeline setting layer; the end of the rainwater collection main pipe (18) close to the drainage well (2) is higher than the end close to the water collection well (1); a plurality of rainwater collection branch pipes (19) are provided between the rainwater collection main pipe (18) and the ground; and a rainwater recovery component and a flood discharge and drainage component are provided in the drainage well (2).

2. The rainwater collection and drainage system for recycling and preventing urban waterlogging according to claim 1 is characterized in that: The inner walls of the water collection well (1) and the drainage well (2) are both composed of a permeable brick layer (5) close to the well cavity and a crushed stone layer (6) close to the permeable brick layer (5). At the position of the rainwater infiltration layer, there is a gravel layer (22) between the crushed stone layer (6) of the water collection well (1) and the drainage well (2).

3. The rainwater collection and drainage system for recycling and preventing urban waterlogging according to claim 2 is characterized in that: The antifreeze layer (3) is located above the gravel layer (22), and the waterproof base layer (4) is located below the gravel layer (22). The pipeline setting layer is arranged above the antifreeze layer (3).

4. The rainwater collection and drainage system for recycling and preventing urban waterlogging according to claim 1 is characterized in that: The rainwater recycling assembly comprises a purified water pump (12) arranged at the bottom of the drainage well (2) and a purified water drainage pipe (13) connected to the purified water pump (12); the purified water drainage pipe (13) extends out of the drainage well (2) and is connected to a purified water comprehensive utilization system (21).

5. The rainwater collection and drainage system for recycling and preventing urban waterlogging according to claim 1 is characterized in that: The flood discharge and drainage assembly comprises a flood control water pump (14) arranged at the bottom of the drainage well (2) and a flood control and flood discharge drainage pipe (15) connected to the flood control water pump (14); the flood control and flood discharge drainage pipe (15) extends out of the drainage well (2) and is connected to the river.

6. The rainwater collection and drainage system for recycling and preventing urban waterlogging according to claim 1 is characterized in that: A sewage storage tank (7) is provided at the bottom of the water collection well (1) and the drainage well (2), and a sewage discharge assembly is provided for sewage discharge. The sewage discharge assembly includes a sewage pump (8) and a sewage pipe (9). When discharging sewage, the sewage pump (8) is provided in the sewage storage tank (7), one end of the sewage pipe (9) is connected to the sewage pump (8), and the other end extends out of the water collection well (1) and the drainage well (2) to connect to the sewage pipe.

7. The rainwater collection and drainage system for recycling and preventing urban waterlogging according to claim 1 is characterized in that: The well wall flushing assembly also includes a high-pressure flushing pipe (10) and a flushing nozzle (11). The high-pressure flushing pipe includes a flushing main pipe and a plurality of flushing branches arranged horizontally on the main pipe. A flushing nozzle (11) is provided at the end of each flushing branch pipe.

8. The rainwater collection and drainage system for recycling and preventing urban waterlogging according to claim 1 is characterized in that: A first sensor (16) is provided at a certain height on the wall of the drainage well (2), and a second sensor (17) is provided at one end of the rainwater collection main pipe (18) connected to the drainage well (2).

9. The rainwater collection and drainage system for recycling and preventing urban waterlogging according to claim 1, characterized in that: A rainwater collection port (20) is provided at the location where the rainwater collection branch pipe (19) is connected to the ground.

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