CN206941744U - sponge urban underground drainage system - Google Patents

Abstract

The utility model discloses an underground drainage system for a sponge city, which comprises a water inlet arranged on the ground and a water inlet pipeline connected with the water inlet. The water inlet pipeline is divided into a first branch and a second branch from below the ground. The first branch is connected with an underground drainage pipe, and the second branch is connected with a water treatment device and a water storage device in turn. The water outlet of the water treatment device is connected with a water suction pipe, and the outlet of the water suction pipe extends to The ground is connected with water-absorbing sprinklers. The utility model can lead the rainwater on the road into the ground through the water inlet provided on the ground, and divide it into two branches according to the specific drainage conditions. The system can not only reduce the problem of flood disasters, but also make full use of the water storage.

Description

Sponge City Underground Drainage System

technical field

The utility model relates to the technical field of urban underground drainage, in particular to an underground drainage system for a sponge city.

Background technique

With the development of the country's economy, urban flooding problems continue to emerge. Economic losses and casualties caused by floods, the national government is also vigorously promoting the construction of sponge cities. Sponge city is a new generation of urban stormwater management concept, which means that the city has good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater. When it rains, it absorbs, stores, seeps, and purifies water. "Release" the stored water and use it. At present, the application of sponge city technology in domestic cities has not yet been deepened. The design function of the sponge city underground drainage system is relatively single, and there are many practical problems.

Utility model content

The main purpose of the utility model is to provide a sponge city underground drainage system to solve the problem that the function of the sponge city underground drainage system in the prior art is relatively single.

The utility model sponge city underground drainage system includes a water inlet arranged on the ground and a water inlet pipeline connected with the water inlet. The water inlet pipeline is divided into a first branch and a second branch from below the ground. The first The branch road is connected with an underground drainage pipe, and the second branch road is connected with a water treatment device and a water storage device in sequence. sprinkler. The utility model can introduce the rainwater on the road into the ground through the water inlet provided on the ground, and divide it into two branches according to the specific drainage conditions. When the rainwater on the ground is less, the water enters the water treatment device through the second branch for precipitation and filtration. , adsorption and a series of water treatment processes, the treated water can enter the water storage device as water storage, and the treated water can also enter the water absorption sprinkler device along the water suction pipe to irrigate the green facilities on the bottom surface; when there is a lot of rain on the ground, Excess water enters the underground drainage pipe through the first branch, thereby discharging excess water. This system can not only reduce flood disasters, but also make full use of water storage.

Further, the water inlet pipe is a siphon suspension pipe. The rainwater passes through the siphon suspension pipe, and there is a wavy flow with a free liquid surface in the siphon suspension pipe, and the liquid state is dominated by gravity flow. With the increase of rainfall, the pipe gradually presents a pulsating flow, and then a full pipe bubble flow and Full pipe air-water mixed flow.

Further, the tail end of the water inlet pipeline is provided with a hydroelectric power generation device. The main principle of the hydroelectric power generation device is to use the micro-water wheel to rotate under the action of the height difference of the water flow to generate electricity. The electric energy generated can not only solve the power consumption of the device itself, but also be used for community use, and can also solve the infrastructure such as community lighting. use electricity.

Further, the water treatment device includes a distributed rainwater processor. The rainwater is automatically processed in the distributed rainwater processor through the process of precipitation, filtration, adsorption and deposition.

Further, the water treatment device further includes a recovery well connected to the outlet of the distributed rainwater processor, the inlet of the water suction pipe extends to the lower part of the recovery well, and the recovery well communicates with the water storage device. Part of the water in the recovery well enters the greening facilities such as the lawn outside the sprinkler device through the water suction pipe for irrigation.

Further, a filter is provided at the connection between the recovery well and the water storage device. The filter screen can filter out some particle impurities in the recovery well, further improving the water quality of the water storage in the water storage tank.

Further, the water storage device includes a water storage tank and a ventilation well connecting the top of the water storage tank with the ground. The water storage tank is a container that can be used to store rainwater without occupying the surface area. It can make full use of the underground space. When using it, it is best to choose a material with a strong bearing capacity. The function of the ventilation well is to release the gas in the reservoir and reduce the underground pressure.

Further, the water suction and spraying device includes a water pump connected to the outlet of the water suction pipe and a nozzle arranged on the water pump.

Further, it also includes an inspection well extending from the ground to the underground drainage pipeline. The inspection well allows maintenance staff to carry out regular maintenance on the system.

Further, the water inlet is a turbo siphon gully. The function of the turbo siphon rainwater outlet is to make the water flow generate a vortex flow to speed up the flow rate and effectively separate different sundries in the water flow.

It can be seen that the utility model innovatively designs a sponge city underground drainage system, which is based on the urban waterlogging prevention, water storage and irrigation integrated pavement rainwater collection system of the sponge city. This system can not only reduce the flood disaster problem, but also make full use of it.

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Additional aspects and advantages of the present invention will be set forth in part in the description which follows, and part will be apparent from the description which follows, or can be learned by practice of the present invention.

Description of drawings

Fig. 1 is a structural schematic diagram of a sponge city underground drainage of the utility model.

detailed description

Below in conjunction with accompanying drawing, the utility model is clearly and completely described. Those skilled in the art will be able to realize the utility model based on these descriptions. Before the utility model is described in conjunction with the accompanying drawings, it should be pointed out that:

The technical solutions and technical features provided in each part of the utility model, including the following description, can be combined with each other under the condition of no conflict.

The embodiments of the present invention mentioned in the following description are generally only a part of the present invention, rather than all of them. Therefore, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

About the description of the terms in the utility model. The terms "first", "second" and the like in the specification and claims of the present utility model and relevant parts are used to distinguish easily confused objects, and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion. The term "suction pipe"

The utility model sponge city underground drainage system includes a water inlet arranged on the ground 1 and a water inlet pipeline connected with the water inlet, the water inlet pipeline is divided into a first branch and a second branch from below the ground 1, and the The first branch is connected with an underground drainage pipe 15, and the second branch is connected with a water treatment device and a water storage device in turn, and the water outlet of the water treatment device is connected with a water suction pipe 9, and the outlet of the water suction pipe 9 extends There is a water absorption spraying device connected to the ground 1.

The water inlet pipe is a siphon suspension pipe 5 .

The tail end of the water inlet pipe is provided with a power generating device 6 .

The water treatment device includes a distributed rainwater processor 7 .

The water treatment device also includes a recovery well 8 connected to the outlet of the distributed rainwater processor 7, the inlet of the water suction pipe 9 extends to the lower part of the recovery well 8, and the recovery well 8 communicates with the water storage device.

A filter screen 12 is provided at the connection between the recovery well 8 and the water storage device.

The water storage device includes a water storage tank 13 and a ventilation well 14 connecting the top of the water storage tank 13 with the ground 1 .

The water suction and spraying device includes a water pump 10 connected to the outlet of the water suction pipe 9 and a nozzle 11 arranged on the water pump 10 .

It also includes an inspection well 2 extending from the ground 1 to an underground drainage pipeline 15 .

The water inlet is a turbine siphon rainwater inlet.

As shown in Figure 1, the sponge city underground drainage system in this specific embodiment includes two water inlets arranged on the ground 1, which are respectively the first turbine siphon rainwater outlet 3 and the second turbine siphon rainwater outlet 4, and the first turbine siphon rainwater outlet The rainwater outlet 3 is connected to the water inlet pipe arranged in the vertical direction, and the second turbine siphon rainwater outlet 4 is also connected to the water inlet pipe arranged in the vertical direction. The pipe 5 extends downward for a certain distance, and a hydroelectric power generation device 6 is installed at its tail end, and then a first branch and a second branch are respectively extended from the horizontal sides of the pipe 5, both of which are pipelines . An underground drainage pipeline 15 is arranged on the side where the first branch road is located, extending from the ground 1 to the inspection well 2 at the underground drainage pipeline 15 , and the water outlet of the first branch road communicates with the underground drainage pipeline 15 . The second branch is connected with a distributed rainwater processor 7, and the outlet of the distributed rainwater processor 7 is connected with a recovery well 8 through a pipeline. On the ground 1, a water pump 10 is provided near the recovery well 8. On the water pump 10 A nozzle 11 is provided, and the water inlet end of the water pump 10 extends out of the suction pipe 9 to the lower part of the recovery well 8 . One side of the bottom of the recovery well 8 is provided with a clean water outlet, which is provided with a filter screen 12, and the clean water outlet is connected with a water storage tank 13 through a pipeline, and the top of the water storage tank 13 communicates with two ventilation wells 14 communicates with ground 1. Wherein the inspection well 2, the recovery well 8, and the ventilation well 14 are all shaft structures connected to the ground 1. The direction indicated by the arrow in the figure is the direction of water flow.

The underground drainage system of the sponge city in this specific embodiment is an urban rainwater collection system integrating urban waterlogging prevention, water storage and power generation based on the sponge city. When there is heavy rain in the city, the rainwater accumulates, and the rainwater passes through the first turbine siphon rainwater outlet 3 and the second turbine siphon rainwater outlet 4 to make the water flow generate a vortex flow to speed up the flow rate and effectively separate different sundries in the water flow. The rainwater passes through the siphon suspension pipe 5, and the siphon suspension pipe 5 is a wavy flow with a free liquid surface, mainly in the liquid state of gravity flow. With the increase of rainfall, the pipe gradually presents a pulsating flow, and then a full pipe appears. Bubbly flow and full-pipe air-water mixed flow. The water flows through the hydroelectric power generation device 6. The main principle of the hydroelectric power generation device 6 is to use the micro-water wheel to rotate under the action of the height difference of the water flow to generate electricity. The generated electric energy can not only solve the power consumption of the system itself, but also solve the infrastructure such as community lighting. of electricity. When the water flow is large, it can enter the underground drainage pipe 15 through the first branch, or enter the distributed rainwater processor 7 through the second branch. The rainwater is automatically precipitated, filtered, and adsorbed in the distributed rainwater processor 7. . Water enters the recovery well through the pipeline, and part of the water in the recovery well 8 is drawn out through the suction pipe 9 under the power of the water pump 10, and the external lawn is irrigated by the nozzle 11. Another part of water from the recovery well 8 enters the water storage tank 13 through the filter screen 12. The water storage tank 13 is a container that can be used to store rainwater and does not occupy the surface area. It can make full use of the underground space and has a super carrying capacity. After the system runs for a period of time, the gas in the gas storage tank 13 is released through the ventilation well 14 to reduce the underground pressure.

Claims (10)

1. Sponge city underground drainage system, comprising the water inlet that is arranged on ground (1) and the water inlet pipe that communicates with water inlet, it is characterized in that, described water inlet pipe divides first branch road from below ground (1), Second branch, described first branch is connected with underground drainage pipe (15), and described second branch is connected with water treatment device, water storage device successively, and the water outlet of described water treatment device is connected with water suction pipe ( 9), the outlet of the water suction pipe (9) extends to the ground (1) and is connected with a water suction spraying device. 2. The underground drainage system of sponge city according to claim 1, characterized in that, the water inlet pipe is a siphon suspension pipe (5). 3. The sponge city underground drainage system according to claim 2, characterized in that, the tail end of the water inlet pipeline is provided with a hydroelectric power generation device (6). 4. The underground drainage system of sponge city according to claim 1, characterized in that, said water treatment device comprises a distributed rainwater processor (7). 5. the sponge city underground drainage system as claimed in claim 4, is characterized in that, described water treatment device also comprises the recovery well (8) that is communicated with the outlet of decentralized rainwater processor (7), and described suction pipe The inlet of (9) extends to the lower part of the recovery well (8), which communicates with the water storage device. 6. The underground drainage system of sponge city according to claim 5, characterized in that, a filter screen (12) is provided at the connection between the recovery well (8) and the water storage device. 7. The sponge city underground drainage system according to claim 1, wherein the water storage device comprises a water storage tank (13) and a ventilation well (14) connecting the top of the water storage tank (13) with the ground (1) ). 8. The sponge city underground drainage system according to claim 1, characterized in that, the water absorption spraying device comprises a water pump (10) connected to the outlet of the water suction pipe (9) and a nozzle (11) arranged on the water pump (10) ). 9. The sponge city underground drainage system according to claim 1, further comprising an inspection well (2) extending from the ground (1) to the underground drainage pipeline (15). 10. The underground drainage system of sponge city according to claim 1, characterized in that, the water inlet is a turbosiphon rainwater inlet.