CN110905041B - A kind of water storage plant wall for sponge city - Google Patents

Abstract

The invention discloses a sponge city water storage plant wall which comprises a plant wall body and a water channel, wherein the water channel is arranged on two sides of a road, one end, close to the plant wall body, of the water channel is communicated with a water inlet pipe, the bottom of the water inlet pipe is communicated with a water outlet pipe through a tee joint, the other end, connected with the water inlet pipe through the tee joint, of the water inlet pipe is communicated with a first water storage cavity arranged in the ground, the top of the first water storage cavity is provided with two current-conducting plates, a second water storage cavity is arranged in the plant wall body, and the second water storage cavity is communicated with the cavity and provided with. Has the advantages that: according to the invention, the first water storage cavities arranged on two sides of the road and the second water storage cavities in the plant walls realize the rainwater storage effect under the condition of rainwater concentration, so that the rainwater treatment elasticity of the whole city is improved, and heavy metal enrichment in the road runoff rainwater is realized by heavy metal super-accumulation plants, so that sewage formed by rainwater is subjected to middle-end and advanced treatment, and the heavy load of a sewage plant during terminal treatment is avoided.

Description

A kind of water storage plant wall for sponge city

technical field

The invention relates to the technical field of sponge cities, in particular to a water storage plant wall for sponge cities.

Background technique

Sponge city is a new generation of urban stormwater management concept. It means that the city can be like a sponge and has good flexibility in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called a "water elastic city". The plant wall is a wall made of green plants. It uses the super adaptive ability of the root system of the plant to the growth environment, so that the plants inhabiting the flat ground in nature grow permanently on the vertical building wall, which is used for architectural design. And building decoration provides a new type of organic ecological material.

In the concept of sponge city, the elastic treatment of rainwater is the key, and in cities with more and more frequent rainfall in the south, the work load of sewage plants in rainy weather is relatively large. In severe cases, there will be untreated rainwater. The situation of directly entering the river will cause water pollution, and after the rainwater is discharged into the river through the path, it will cause a large amount of heavy metal pollution. Under the rainwater collection and treatment work, improve the elastic treatment of rainwater.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problem that the sewage treatment load is large in the areas with frequent rainwater in the prior art, and the end treatment effect of the sewage in the prior art is poor, and a water storage plant wall for sponge city is designed.

In order to achieve the above object, the present invention adopts the following technical scheme: a water storage plant wall for sponge city, comprising a plant wall body and a water channel, and the water channel is arranged on both sides of the road and is connected with a water inlet pipe near one end of the plant wall body, The bottom of the water inlet pipe is connected with a drain pipe through a tee, and the other end of the water inlet pipe is connected with a first water storage cavity opened inside the ground, and the top of the first water storage cavity is provided with two conductive A second water storage cavity is opened in the middle of the plant wall body, and a pressure valve is provided in the second water storage cavity in communication with the cavity;

The inner wall of the first water storage cavity is sealed and fixedly connected with a partition, the partition divides the first water storage cavity into two parts, and a connection is provided through the top of the part of the first water storage cavity close to the water inlet pipe. The connecting pipe is provided with a one-way valve, and the connection between the connecting pipe and the ground is provided with a water pump;

The part of the first water storage chamber away from the water inlet pipe is provided with a plurality of crushed stones, and the side away from the partition plate is provided with a sewage pipe, and the sewage pipe and the drain pipe are both connected to the external sewage treatment device.

In the above-mentioned water storage plant wall for sponge city, the body of the plant wall is made of a plurality of hollow bricks, and each of the hollow bricks is planted with plants, and the species of the plants are heavy metal hyperaccumulation plants. One side of the second water storage cavity is connected with a layer of fixed layer, and the side of the hollow brick close to the second water storage cavity is provided with a water permeable membrane.

In the above-mentioned water storage plant wall for sponge city, the top of the plant wall body is provided with a water inlet with a funnel structure, and the outer side of the water inlet is provided with a ring-shaped solar panel, and the solar panel is electrically connected to the water pump. A filter screen is sealed and connected to the water inlet.

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

1. In the present invention, the first water storage cavity and the second water storage cavity that can store water are provided to temporarily store water in rainy weather, so that the rainwater in the process of flowing along the road is collected, and the overall urban response to rainwater is improved. improve the treatment flexibility and reduce the treatment load of the sewage treatment plant under heavy rain;

2. Under the initial action, when the rainwater just begins to wash the road, the content of pollutants discharged by vehicles in the water is relatively high, while the content of pollutants in the rainwater falling directly without passing through the road is relatively low. The second water storage chamber stores the rainwater that passes through the road and does not pass through the road separately, which improves the city's elasticity of rainwater treatment and the efficiency of reprocessing during water circulation;

3. The first water storage chamber and the second water storage chamber are connected to each other through the connecting pipe, and when the conductive plates on the top of the first water storage chamber are connected to each other, the water pump is turned on, and in this state, the water in the first water storage chamber is connected. The water enters the second water storage cavity through the water pump and the connecting pipe, so that the heavy metal hyperaccumulation plants set in the plant wall can absorb the heavy metals in the rainwater, so as to realize the intermediate and advanced treatment of the rainwater, and set the pressure The valve opening pressure is the second water storage chamber full of water, then when the pressure valve is opened, the water in the second storage chamber will be directly discharged to the outside, at this time, the water discharged through the sewage pipe will directly enter the recycling pipeline or drain. River pipeline, and improve the efficiency of rainwater treatment on the road flow;

4. Multiple pieces of gravel are arranged on the side of the first water storage chamber near the sewage pipe. When the water flow enters the gravel area vertically, it will produce natural filtration, thereby improving the treatment effect of rainwater. At the same time, the top of the plant wall body is provided with solar panels. , used to save solar energy and used in pressure valve water pump to reduce energy consumption;

5. The second water storage cavity in the main body of the plant wall also plays the role of water storage for the irrigation of the plants in the main body of the plant wall, making it unnecessary to design the irrigation system for the plant wall under normal conditions. It has the characteristics of drought resistance and high temperature resistance, so it can be perfectly suitable for the design requirements of plant walls, which can beautify the environment and absorb noise.

Description of drawings

Fig. 1 is the structural representation of a kind of sponge city water storage plant wall proposed by the present invention;

Fig. 2 is a top view in a water storage plant wall for a sponge city proposed by the present invention;

FIG. 3 is an enlarged schematic view of part A of a water storage plant wall for a sponge city proposed by the present invention.

In the figure: 1. Plant wall body, 101. Hollow brick, 102. Fixed layer, 103. Plant, 104. Permeable membrane, 2. Water channel, 3. Water inlet pipe, 4. Drain pipe, 5. First water storage cavity, 6. Conductive plate, 7. Second water storage cavity , 8 water pumps, 9 connecting pipes, 10 one-way valves, 11 partitions, 12 sewage pipes, 13 pressure valves, 14 water inlets, 15 solar panels, 16 filters.

Detailed ways

The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

Example

1-3, a water storage plant wall for sponge city, including plant wall body 1 and water channel 2, the water channel 2 is arranged on both sides of the road and is connected with an inlet pipe 3 near one end of the plant wall body 1, and the bottom of the water inlet pipe 3 is connected. A drain pipe 4 is connected through the tee, and the other end of the water inlet pipe 3 is connected with a first water storage cavity 5 opened in the ground. The top of the first water storage cavity 5 is provided with two conductive plates 6, The middle of the plant wall body 1 is provided with a second water storage cavity 7, and the second water storage cavity 7 is connected with the cavity and is provided with a pressure valve 13;

The inner wall of the first water storage chamber 5 is sealed and fixedly connected with a partition 11, which divides the first water storage chamber 5 into two parts, and the top part of the first water storage chamber 5 near the water inlet pipe 3 is provided with a connection Pipe 9, a one-way valve 10 is provided in the connecting pipe 9, the one-way valve 10 only allows water to flow from the first water storage cavity 5 to the second water storage cavity 7, and the connection between the connecting pipe 9 and the ground is provided with a water pump 8, The water pump 8 is used to pump the water in the first water storage chamber 5 into the second water storage chamber 7. The part of the first water storage chamber 5 away from the water inlet pipe 3 is provided with a plurality of crushed stones and the side away from the partition plate 11 is provided. There is a sewage pipe 12, and both the sewage pipe 12 and the drain pipe 4 are connected with the external sewage treatment device, wherein the sewage pipe 4 is connected with the primary treatment structure in the sewage treatment device, and the sewage pipe 12 is connected with the secondary treatment structure in the sewage treatment device or recycling Pipe connection.

The plant wall body 1 is made of a plurality of hollow bricks 101, and each hollow brick 101 is planted with plants 103 through the soil set inside. A layer of fixed layer 102 is connected to the side of the hollow brick 101 away from the second water storage cavity 7, and the side of the hollow brick 101 close to the second water storage cavity 7 is provided with a permeable membrane 104, the permeable membrane 104 is used to prevent the rainwater from directly contacting the soil in the hollow brick 101, and the sewage is treated by the plants 103 under the action of infiltration. The top of the plant wall body 1 is provided with a funnel-structured water inlet 14. There is a ring-shaped solar cell panel 15 , the solar cell panel 15 is electrically connected with the water pump 8 , and a filter screen 16 is sealed in the water inlet 14 .

In urban sewage treatment, road runoff pollution treatment is an important part of urban sewage treatment. Because it contains a large number of vehicle exhaust emissions, it has high heavy metal pollutants. Generally, in rainy weather, urban sewage treatment is responsible for Domestic sewage, industrial sewage and rainwater have heavy loads, so that the problem of overflow pollution in the drainage system has become an important factor affecting the water quality of the river. Therefore, in the present invention, the first water storage cavity 5 and the second water storage cavity 7 are passed through. For the storage of rainwater, the load of the urban drainage system is relieved within a certain period of time, and the requirements of the sponge city are met. At the same time, when the plant wall body 1 is installed on both sides of the road, it flows into the canal 2 and the first water storage through the road path. The water in the cavity 5 contains a large amount of heavy metal pollution, and under the initial effect, the content of the pollutants is relatively large. At this time, when the water level of the first water storage cavity 5 overflows the height of the two conductive plates 6, the two conductive plates 6 Under the action of water as the electrolyte, the circuit of the solar panel 15 is connected to start the water pump 8, and the rainwater in the first water storage chamber 5 through the channel flow and the initial effect will directly enter the second water storage chamber 7, and the heavy metal Hyperaccumulation absorbs the heavy metals in its content, so that the pollutant content in the rainwater is reduced. When the water level is lower than the height of the conductive plate 6, the water pump 8 is in a closed state, and before the pressure valve 13 is opened, it enters the second water storage. The rainwater in the chamber 7 has been absorbed and processed, and the opening pressure of the pressure valve 13 is set to be full of water in the second water storage chamber 7. When the water level in the second water storage chamber 7 exceeds the starting pressure of the pressure valve 13, the second water storage chamber 7 is filled with water. The water stored in the cavity 7 directly enters the first water storage cavity 5 near the side of the sewage pipe 12, and enters the sewage pipe 12 under the natural filtration of the crushed stone, and the sewage pipe 12 at this time is directly connected to the external sewage treatment device. Recycling pipelines, river drainage pipelines or secondary treatment pipelines do not need to undergo primary treatment of sewage, reducing the treatment load of sewage plants on rainwater.

Although the plant wall body 1, the hollow brick 101, the fixed layer 102, the plants 103, the permeable membrane 104, the water channel 2, the water inlet pipe 3, the drain pipe 4, the first water storage cavity 5, the conductive plate 6, the second Terms such as water storage chamber 7, water pump 8, connecting pipe 9, one-way valve 10, partition plate 11, sewage pipe 12, pressure valve 13, water inlet 14, solar panel 15, filter screen 16, etc., are not excluded. Possibilities of terms. These terms are used only to more conveniently describe and explain the nature of the present invention; it is contrary to the spirit of the present invention to interpret them as any kind of additional limitation.

Claims (3)

1. A water storage plant wall for a sponge city, comprising a plant wall body (1) and a water channel (2), wherein the water channel (2) is arranged on both sides of the road and is close to one end of the plant wall body (1) A water inlet pipe (3) is communicated with, the bottom of the water inlet pipe (3) is connected with a drain pipe (4) through a tee, and the other end of the water inlet pipe (3) is communicated with a first storage tank opened in the ground through the other end of the tee connection. A water cavity (5), the top of the first water storage cavity (5) is provided with two conductive plates (6), and the middle of the plant wall body (1) is provided with a second water storage cavity (7), so The second water storage cavity (7) is connected with the cavity and is provided with a pressure valve (13); The inner wall of the first water storage cavity (5) is sealed and fixedly connected with a partition plate (11), and the partition plate (11) divides the first water storage cavity (5) into two parts, which are close to the water inlet pipe ( 3) Part of the top of the first water storage chamber (5) is provided with a connecting pipe (9), a one-way valve (10) is arranged in the connecting pipe (9), and the connecting pipe (9) is connected to the ground. A water pump (8) is provided at the connection; The part of the first water storage chamber (5) away from the water inlet pipe (3) is provided with a plurality of crushed stones, and the side away from the partition plate (11) is provided with a sewage pipe (12), the sewage pipe (12) and the sewage pipe (12). The drain pipes (4) are all connected with the external sewage treatment device. 2. A water storage plant wall for sponge city according to claim 1, characterized in that, the plant wall body (1) is made of a plurality of hollow bricks (101), and each hollow brick (101) has Plants (103) are all planted, and the varieties of the plants (103) are selected from heavy metal hyperaccumulation plants. A water-permeable membrane (104) is provided on the side of the hollow brick (101) close to the second water storage cavity (7). 3. The water storage plant wall for a sponge city according to claim 1, wherein the top of the plant wall body (1) is provided with a water inlet (14) of a funnel structure, and the water inlet (14) ) is provided with an annular solar cell panel (15) on the outer side, the solar cell panel (15) is electrically connected with the water pump (8), and a filter screen (16) is sealed in the water inlet (14).

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