CN207499518U - Urban rainwater intelligence is collected with utilizing system - Google Patents

Abstract

The utility model discloses an intelligent collection and utilization system of urban rainwater, which includes public green space and trees, and drip irrigation devices are arranged at the public green space and trees; it also includes a rainwater collection gallery pavilion, an electric vehicle charging station, a building, and a rainwater collection gallery The kiosk, the electric vehicle charging station and the top of the building are all equipped with solar panels, the power output end of the solar panel is connected with the storage battery, and the storage battery and the general controller are arranged at the electric vehicle charging station. The utility model has the advantages of simple structure, convenient construction and various functions, and is of great significance to today's increasingly tight resources. At the same time, the weather conditions can be monitored at any time, and weather information can be provided to tourists who play and watch in the pavilion.

Description

Urban Rainwater Intelligent Collection and Utilization System

technical field

The utility model belongs to the technical field of rainwater utilization, in particular to an intelligent collection and utilization system of urban rainwater.

Background technique

Water resources are basic natural resources and one of the controlling factors of the ecological environment; at the same time, water resources are strategic economic resources and an integral part of a country's comprehensive national strength. With the rapid development of urbanization and economy, the contradiction of insufficient resources, the rapid development of urbanization, and the continuous increase of urban population, on the one hand, the demand for urban water consumption has increased, and on the other hand, the urban impermeable area has expanded, resulting in the loss of rainwater resources. Increase and the balance of the water circulation system are disrupted. As a natural resource, rainwater is lightly polluted and plays an important role in regulating and replenishing urban water resources and improving urban natural ecosystems. Modern urban rainwater utilization is a new multi-objective comprehensive technology, which can realize functions such as water conservation, water resource conservation and protection, control of urban soil erosion and waterlogging, reduction of water pollution, and improvement of urban ecological environment.

The practice and research of urban rainwater utilization in foreign countries started earlier. Rainwater collection began in the 1980s, and countries around the world began to explore urban rainwater resources. At least 40 countries and regions around the world have carried out research and practice of rainwater management and utilization. . The United States, Germany, the United Kingdom, Australia, Japan, Israel and other countries have long been committed to the research and development of rainwater management technology, and have formed relatively mature rainwater utilization technology, developed a variety of hydrological models, and established a relatively complete guarantee system. Although my country's urban rainwater utilization has achieved certain results, it generally started late and its development is relatively lagging behind. By analyzing the current situation of rainwater utilization in foreign countries, the rainwater collection and utilization technology is proposed, aiming to provide reference and enlightenment for rainwater utilization in our country.

With the rapid population growth and rapid economic development, the contradiction between water supply and demand has become a bottleneck restricting my country's industrial and agricultural production and urban development. Some experts pointed out that after 2010, my country will enter a period of severe water shortage; in 2030, my country will be short of 40 billion cubic meters to 50 billion cubic meters of water, and the peak of water shortage will appear. Therefore, collecting and utilizing rainwater as an important water resource and implementing comprehensive management has become an important emerging topic. Governments at all levels across the country attach great importance to this aspect of work, and all enterprises are responsible for doing a good job of this "compulsory course".

Because natural rainwater has the advantages of low hardness and less pollutants, it is increasingly becoming an important topic in reducing urban rainwater hazards and developing water sources. For large-scale public buildings, residential areas, building groups and other roof and ground rainwater, after collection and certain treatment, in addition to watering crops and replenishing groundwater, it can also be used for landscape environment, greening, water for car washes, road flushing, and cooling water replenishment , flushing toilets and some other non-domestic water uses. According to the needs of the production process, the rainwater of the plant can be used to supplement part of the production water after proper treatment. Therefore, through the planning and design according to local conditions and the implementation of rainwater collection and utilization equipment, reducing the amount of tap water used for the above purposes can save water resources and greatly alleviate the problem of water shortage in our country.

Most of the cities in our country belong to the type of water resource scarcity, which leads to the restriction of water resources in urban development. It is necessary to accelerate the development and utilization of alternative water resources to meet and ensure the needs of rapid urban construction and development. The comprehensive utilization of urban rainwater provides us with a new way and a new way of thinking.

There is no unified planning and design of rainwater utilization. Urban rainwater utilization involves multiple research fields and is a multidisciplinary research. Therefore, rainwater utilization must require a unified, coordinated, and comprehensive planning idea, and it needs to focus on the layout as a whole. The planning of rainwater utilization in some cities is weak in coordination and does not follow the unified principle.

The rainwater utilization technology is outdated because the working time of rainwater utilization in our country is relatively short. Compared with the rainwater utilization technology in developed countries, the rainwater utilization technology in my country's cities is relatively backward, and it is not complete in terms of rainwater collection and water use. With the acceleration of the urbanization process, the permeable area of the urban area has continuously shrunk, but most of the stormwater planning concepts are still the design system of direct discharge or drainage.

Utility model content

In order to solve the above problems, the utility model provides an intelligent collection and utilization system of urban rainwater, which collects and stores rainwater from roofs, roads, etc. through a series of collection devices, and then uses the stored rainwater through the intelligent utilization system For the watering of the garden grass, the design is ingenious and easy to use, making the collection and utilization of rainwater more intelligent and convenient.

The purpose of this utility model is achieved in the following manner:

The urban rainwater intelligent collection and utilization system includes public green spaces and trees, where drip irrigation devices are installed; it also includes rainwater collection pavilions, electric vehicle charging stations and buildings, rainwater collection pavilions, electric vehicle charging stations and The top of the building is equipped with solar panels, the power output end of the solar panels is connected to the battery, and the battery and the general controller are set at the electric vehicle charging station;

The rainwater collection pavilion includes a column, the column is installed on the foundation, the lower part of the column is installed with a seat, the top of the column is installed with a roof, the first solar panel is arranged on the roof, and the plane where the first solar panel is located has a certain angle with the horizontal plane , a water retaining ring is installed around the roof, a rainwater collection box is installed at the bottom of the roof, a horizontal rainwater collection pipe is installed in the rainwater collection pipe box, a rainwater inlet is opened on the horizontal rainwater collection pipe, and the rainwater inlet is connected to the roof. The corresponding position is provided with a water inlet, and the rainwater inlet and the water inlet are connected through a pipe that runs through the roof. A vertical rainwater collection pipe is installed inside the column, and the horizontal rainwater collection pipe is connected with the vertical rainwater collection pipe. The vertical rainwater collection pipe The end is connected with the rain and sewage diversion device;

A flow sensor is installed at the rainwater inlet, a wind speed sensor is installed on the top of the roof, and a pavilion controller is installed on the column, and the pavilion controller is electrically connected to the flow sensor and the wind speed sensor respectively;

The outer surface of the building wall is vertically provided with rainwater collection pipes from top to bottom, and the rainwater collection pipes are connected with the rain garden box through horizontal pipes; the rain garden box includes a box body, and the inside of the box body is provided with a planting soil layer and a sand layer from top to bottom. and gravel layer, drought-resistant and flood-resistant plants are planted in the planting soil layer, rainwater introduction pipes and overflow pipes are installed on the top of the rain garden box, drip irrigation pipes are buried in the planting soil layer, and rainwater collection pipes are installed at the bottom of the rain garden box. The rainwater collection pipe is connected with the rainwater introduction pipe of the rain garden box through a horizontal pipe, the end of the overflow pipe is connected with the rain and sewage diversion device, the end of the drip irrigation pipe and the end of the purified rainwater collection pipe are connected with the water storage tank, and the drip irrigation pipe is provided with the first a water pump;

The connection between the rainwater collection pipe and the first horizontal pipe is provided with a first groove, the bottom surface of the first groove is flush with the bottom surface of the first horizontal pipe, and there is a gap between the side of the first groove and the pipe wall of the rainwater collection pipe. A certain distance L1, the second horizontal pipe extends into the rainwater collection pipe for a distance L2, the position corresponding to the rainwater collection pipe and the second horizontal pipe is provided with a second groove, the bottom surface of the second groove is flat with the bottom surface of the second horizontal pipe Aligned and connected, there is a pipe gap between the second groove, the wall of the rainwater collection pipe and the second horizontal pipe; the first groove and the second groove are arranged at intervals from top to bottom between the rainwater collection pipe and the horizontal pipe ;

There are solar street lamps on both sides of the street, the street sewer is connected with the street rainwater collection pipe, the street rainwater collection pipe is connected with the rain and sewage diversion device through the street rainwater main collection pipe, and the rain and sewage diversion device is connected with the urban main sewage pipe through the diversion sewage pipe. The rain and sewage diversion device is also connected with the water storage tank, the water storage tank is connected with the drip irrigation device through the drip irrigation inlet pipe, the second water pump is arranged on the drip irrigation inlet pipe, the drip irrigation water inlet pipe is also connected with the reclaimed water pipe, and the reclaimed water pipe is provided with a reclaimed water solenoid valve;

A soil moisture sensor is installed in the soil, a liquid level sensor is installed in the water storage tank, and both the soil moisture sensor and the liquid level sensor are connected to the master controller;

The storage battery is electrically connected to the electric vehicle charging station, solar street lamp, flow sensor, wind speed sensor, pavilion controller, soil humidity sensor, liquid level sensor and the main controller, and the main controller is connected to the solenoid valve of the reclaimed water pipe, the second water pump and the first water pump. A water pump electrical connection;

The street rainwater collection pipes, street rainwater main collection pipes, rain and sewage diversion devices, water storage tanks, drip irrigation water inlet pipes, second water pumps, reclaimed water pipes, first water pumps, and urban general sewage pipes are all buried below the ground.

The water storage tank is a pp module.

The inner bottom surface of the box body is a slope, and the side provided with the purified rainwater collecting pipe is the lower side.

The inclination angle of the slope is 1-5°.

Said L1≥L2.

An overflow hole is opened on the water retaining ring.

Compared with the prior art, the appearance of the rainwater collection corridor pavilion in the utility model is similar to the promenade pavilions in various gardens or squares, with a roof on the top and a shuttle below for people, and there are seats on both sides of the pavilion for people to rest. The top of the building is triangular in shape, and solar panels are placed on both sides for photovoltaic power generation and allow rainwater to flow down the hypotenuse. There is a water retaining ring at the bottom of the pavilion to prevent rainwater from flowing down and being wasted. There is a water inlet hole under the water retaining ring to collect rainwater, and an overflow hole is provided on the upper layer of the water retaining ring to prevent the overflow of rainwater due to excessive rainfall. A flow sensor is installed at the water inlet hole to monitor the amount of rainfall. There is a wind speed sensor on the top of the pavilion to monitor the direction and magnitude of the wind. The utility model has the advantages of simple structure, convenient construction and various functions, and is of great significance to today's increasingly tight resources. At the same time, the weather conditions can be monitored at any time, and weather information can be provided to tourists who play and watch in the pavilion.

The building in the utility model is provided with a rain garden, and the rainwater is collected from the roof into the rainwater collection pipe, and the pipe enters each rainwater garden box, and the rainwater is reduced through the process of vegetation soil adsorption, degradation, ion exchange and volatilization. pollution, and then import the excess purified rainwater into the storage tank to reduce the runoff of surface rainwater, which can not only make full use of rainwater, but also reduce urban rain and flood disasters. The utility model organically combines the rainwater garden with the building, has the advantages of purifying and utilizing rainwater and beautifying the building, not only depends on the building, but also can be properly allocated according to different buildings during the construction process.

Description of drawings

Fig. 1 is the structural representation of the utility model looking down from above the ground.

Fig. 2 is the structural representation of the utility model looking up from below the ground.

Fig. 3 is an enlarged view of the circled part in Fig. 2 .

Figure 4 is a front view of the building.

Fig. 5 is a structural schematic diagram of a building.

Fig. 6 is a schematic diagram of the internal structure of the rainwater collecting pipe and the horizontal pipe.

Fig. 7 is a sectional view along the direction of Fig. 6A-A.

Fig. 8 is a schematic diagram of the internal structure of the rain garden box.

Fig. 9 is one of the structural schematic diagrams of the rainwater collection pavilion.

Fig. 10 is an enlarged view of part A in Fig. 9 .

Fig. 11 is the second structural diagram of the rainwater collection gallery pavilion.

Fig. 12 is a sectional view of the rainwater collection gallery pavilion.

Among them, 1 is a public green space; 2 is a drip irrigation device; 3 is a building; 301 is a rainwater collection pipe; 302 is a rain garden box; 303 is a horizontal pipe; 3031 is the first horizontal pipe; 3032 is the second horizontal pipe; 304 is the first horizontal pipe 305 is the second groove; 306 is the planting soil layer; 307 is the overflow pipe; 308 is the drip irrigation pipe; 309 is the purification rainwater collection pipe; 313 is a gravel layer; 314 is a box; 315 is a pipe gap; 4 is a rainwater collection gallery; 401 is a rain collection tube box; 402 is a wind speed sensor; 403 is a column; 404 is a seat; 405 is an entrance Water hole; 406 is a water retaining ring; 407 is an overflow hole; 408 is the first solar panel; 409 is a flow sensor; 410 is a horizontal rainwater collection pipe; 411 is a vertical rainwater collection pipe; 414 is a foundation; 415 is a rainwater inlet Shuikou; 416 is the controller of the pavilion; 5 is the street; 6 is the solar street light; 8 is the electric vehicle charging station; 9 is the tree; 13 is the street water outlet; 14 is the first water pump; 20 is the rain and sewage diversion device; 21 is the diversion sewage pipe; 22 is the water storage tank; 23 is the drip irrigation water inlet pipe; 24 is the city's main sewage pipe; Solenoid valve for middle water pipe.

Detailed ways

As shown in accompanying drawings 1-12, the urban rainwater intelligent collection and utilization system includes public green spaces 1 and trees 9, and drip irrigation devices 2 are installed at public green spaces 1 and trees 9; it also includes rainwater collection pavilions 4, electric vehicles Charging station 8 and building 3, rainwater collection gallery pavilion 4, electric vehicle charging station 8 and the top of building 3 are all equipped with solar panels, the power output end of the solar panel is connected to the battery, and the battery and the master controller are set at the electric vehicle charging station 8 places;

The rainwater collection gallery pavilion 4 comprises column 403, and column 403 is installed on foundation 414, and seat 404 is installed on the bottom of column 403, and roof is installed on the top of column 403, and first solar panel 408 is arranged on the roof, and first solar panel 408 There is a certain angle between the plane and the horizontal plane, the water retaining ring 406 is installed around the roof, the rain collecting tube box 401 is installed at the bottom of the roof, and the horizontal rainwater collecting pipe 410 and the horizontal rainwater collecting pipe 410 are installed in the rain collecting tube box 401 There is a rainwater inlet 415 on the roof, and a water inlet 405 is provided at a position corresponding to the rainwater inlet 415 on the roof. The rainwater inlet 415 and the water inlet 405 are connected through a pipe running through the roof, and vertical rainwater is installed inside the column 403. The collecting pipe 411, the horizontal rainwater collecting pipe 410 communicates with the vertical rainwater collecting pipe 411, and the end of the vertical rainwater collecting pipe 411 communicates with the rain and sewage diversion device 20;

A flow sensor 409 is arranged at the rainwater inlet 415, a wind speed sensor 402 is installed on the top of the roof, and a pavilion controller 416 is installed on the column 403, and the pavilion controller 416 is electrically connected to the flow sensor 409 and the wind speed sensor 402 respectively;

The first solar panel 408 converts solar energy into electric energy, and the electric energy is stored in the storage battery, and the storage battery supplies power to the pavilion controller 416, the flow sensor 409 and the wind speed sensor 402; Pass to the pavilion controller 416, there is a display screen on the pavilion controller 416, the real-time information of rainfall and wind speed can be displayed on the display screen for people to check.

There is a certain included angle between the plane where the solar panel 408 is located and the horizontal plane, which can ensure that rainwater will not stay on the solar panel 408 for a long time, and the included angle between the plane where the solar panel 408 is located and the horizontal plane is 30°.

The outer surface of the wall of building 3 is vertically provided with a rainwater collection pipe 301 from top to bottom, and the rainwater collection pipe 301 is connected with the rainwater garden box 302 through a horizontal pipe 303; the rainwater garden box 302 includes a box body 314, and the inside of the box body 314 is from top to bottom A planting soil layer 306, a sandy soil layer 312 and a gravel layer 313 are set, and drought- and flood-tolerant plants 310 are planted in the planting soil layer 306, and a rainwater introduction pipe 311 and an overflow pipe 307 are arranged on the top of the rain garden box 302, and the planting soil layer 306 A drip irrigation pipe 308 is embedded inside, and a purified rainwater collection pipe 309 is installed at the bottom of the rain garden box 302. The rainwater collection pipe 301 communicates with the rainwater introduction pipe 311 of the rain garden box 302 through a horizontal pipe 303, and the end of the overflow pipe 307 diverges from rain and sewage The device 20 is connected, the end of the drip irrigation pipe 308 and the end of the purified rainwater collection pipe 309 are connected with the water storage tank 22, and the first water pump 14 is arranged on the drip irrigation pipe 308;

The junction of the rainwater collection pipe 301 and the first horizontal pipe 3031 is provided with a first groove 304, the bottom surface of the first groove 304 is flush with the bottom surface of the first horizontal pipe 3031, and the side surface of the first groove 304 is aligned with the rainwater collection pipe. There is a certain distance L1 between the pipe walls of 301, the second horizontal pipe 3032 extends into the rainwater collection pipe 301 for a distance L2, and the position corresponding to the rainwater collection pipe 301 and the second horizontal pipe 3032 is provided with a second groove 305, the second The bottom surface of the groove 305 is flush with the bottom surface of the second horizontal pipe 3032 and connected, there is also a pipe gap 315 between the second groove 305, the wall of the rainwater collecting pipe 301 and the second horizontal pipe 3032; the rainwater collecting pipe 301 and the second horizontal pipe 3032 A first groove 304 and a second groove 305 are spaced from top to bottom between the horizontal pipes 303;

The setting of the first groove 304 and the second groove 305 can make the rainwater flowing down from the rainwater collection pipe 301 flow into the horizontal pipe 303 respectively, and then flow into each rain garden box 302 by the horizontal pipe 303; A groove 304 can catch a part of the rainwater flowing down, so that this part of rainwater enters the corresponding rain garden box 302 along the first horizontal pipe 3031, and the part of the rainwater not caught by the first groove 304 flows along the rainwater collection pipe. 301 continues to flow downward, and when it reaches the second groove 305, the second groove 305 catches part of the rainwater flowing down, so that this part of rainwater enters the corresponding rain garden box 302 along the second horizontal pipe 3032, without The rainwater caught by the second groove 305 flows down from the pipe gap 315, and continues to flow downward along the rainwater collecting pipe 301, and when it reaches the next first groove 304, the next first groove 304 can flow down. Part of the rainwater is caught, so that this part of rainwater enters the corresponding rain garden box 302 along the first horizontal pipe 3031..., and so on, it can be ensured that the rainwater collected by the rainwater collection pipe 301 can enter the balcony and other places of the building respectively. Each of the rain garden boxes 302.

There must be a certain distance L1 between the side of the first groove 304 and the pipe wall of the rainwater collecting pipe 301, so as to ensure that the first groove 304 only catches part of the rainwater flowing down instead of all the rainwater.

Both sides of the street 5 are provided with solar street lamps 6, the street sewer 13 communicates with the street rainwater collection pipe 17, the street rainwater collection pipe 17 communicates with the rain and sewage diversion device 20 through the street rainwater main collection pipe 19, and the rain and sewage diversion device 20 passes through the diversion sewage The pipe 21 communicates with the city's main sewage pipeline 24, and the rain and sewage diversion device 20 also communicates with the water storage tank 22. The water storage tank 22 communicates with the drip irrigation device 2 through the drip irrigation inlet pipe 23, and the second water pump 25 is arranged on the drip irrigation inlet pipe 23. The water pipe 23 is also communicated with the reclaimed water pipe 27, and the reclaimed water pipe 27 is provided with a reclaimed water pipe solenoid valve 28;

A soil moisture sensor is arranged in the soil, a liquid level sensor is arranged in the water storage tank 22, and both the soil moisture sensor and the liquid level sensor are connected to the master controller;

The soil moisture sensor detects the moisture in the soil. When the soil moisture is greater than the preset value, there is no action; When the water in the tank was enough for drip irrigation, the master controller controlled the second water pump 25 to open, and the second water pump 25 sent the water in the water storage tank 22 to drip irrigation in the drip irrigation device 2; when the water in the water storage tank 22 was not enough for irrigation, The master controller controls the reclaimed water pipe electromagnetic valve 28 on the pipeline connecting the drip irrigation device 2 and the reclaimed water pipe 27 to open, and utilizes an external water source to drip-irrigate the soil.

The storage battery is electrically connected with the electric vehicle charging station 8, solar street lamp 6, flow sensor 409, wind speed sensor 402, pavilion controller 416, soil humidity sensor, liquid level sensor and the general controller, and supplies power to these electrical equipment. The device is electrically connected with the medium water pipe solenoid valve 28, the second water pump 25 and the first water pump 14;

The street rainwater collection pipe 17, the street rainwater main collection pipe 19, the rain and sewage diversion device 20, the water storage tank 22, the drip irrigation water inlet pipe 23, the second water pump 25, the middle water pipe 27, the first water pump 14, and the urban general sewage pipe 24 are all buried in the below the ground.

The water storage tank 22 is used to store the collected rainwater in various forms, and can be poured with concrete or a metal water tank. The most ideal water storage tank 22 is a pp module at present.

The inner bottom surface of the box body 314 is an inclined plane, and the side provided with the purified rainwater collecting pipe 309 is the lower side, so that the purified rainwater can be better introduced into the purified rainwater collecting pipe 309 .

The inclination angle of the above-mentioned slope is 1-5°.

L1≧L2, which can ensure that the second groove 305 can catch more rainwater flowing down, because the flow of rainwater in the rainwater collecting pipe 301 is not flowing against the wall.

An overflow hole 407 is provided on the water retaining ring 406. When the rainfall is too heavy, the rainwater will flow out from the overflow hole 407, preventing the amount of rainwater from exceeding the water retaining ring 406 and overflowing.

The rainwater diversion device 20 is an existing rainwater purifier, which simply purifies the collected rainwater. Because of environmental pollution and the pollution encountered in the collection process, the collected rainwater contains a large amount of pollutants, which is not conducive to the storage and utilization of rainwater. It needs to be purified first.

The working process of the utility model is as follows: rainwater falls to the top of the rainwater collection gallery pavilion 3, and the water retaining ring 406 blocks the rainwater from flowing out. The collecting pipe 410 enters into the vertical rainwater collecting pipe 411, and after being purified by the rainwater diversion device 20, enters the water storage tank 22 for storage.

The rainwater flows down from top to bottom along the rainwater collection pipe 301, and enters through the first groove 304 and the second groove 305 into each rain garden box 302 arranged on the balcony of a building, etc., on the planting soil layer 306 of the rain garden box 302 Planting drought-tolerant and flood-tolerant plants 310, the planting soil layer 306 contains a large number of microorganisms, which can reduce pollution in rainwater through processes such as degradation, ion exchange, and volatilization; the sandy soil layer 312 at the bottom of the planting soil layer 306 is located between the planting soil layer 306 and the gravel layer 313 Between them, it acts as a buffer, which can prevent soil erosion in the planting soil layer; the gravel layer 313 has a large middle gap and strong supporting capacity, which can not only support the upper structure, but also allow water to flow in it; The rainwater purified and filtered by the gravel layer 313 is stored in the water storage tank 22 along the purified rainwater collecting pipe 309 .

When the rainwater was too large, the rainwater entering the rain garden box 302 had no time to collect by the rain garden box 302, then the excess rainwater was exported to the rain and sewage diversion device 20 by the overflow pipe 307, after the purification by the rain and sewage diversion device 20, Into the storage tank 22 for storage to prevent overfilling.

In the case of long-term drought, the plants in the rain garden box are short of water, and the first water pump 14 is controlled by the master controller to pump the water in the water storage tank 22 into the drip irrigation pipe 308, and the rain garden box 302 can be connected to the rain garden box 302 through the drip irrigation pipe 308. For watering.

The solar panel converts solar energy into electric energy and stores it in the storage battery, and the storage battery supplies power to all electrical equipment. The utility model fully collects rainwater, uses it after purification, and makes full use of rainwater resources.

The rainwater collected by the street sewer 3 is collected by the street rainwater collection pipe 17 to the street rainwater main collection pipe 19, and finally enters the rain and sewage diversion device 20. After being purified by the rain and sewage diversion device 20, it enters the water storage tank 22 for storage.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those skilled in the art, without departing from the overall concept of the utility model, some changes and improvements can also be made, and these should also be regarded as Protection scope of the present utility model.

Claims (6)

1. The urban rainwater intelligent collection and utilization system is characterized in that it includes public green space (1) and trees (9), and the public green space (1) and trees (9) are equipped with drip irrigation devices (2); it also includes rainwater The collection gallery pavilion (4), the electric vehicle charging station (8) and the building (3), the rainwater collection gallery pavilion (4), the electric vehicle charging station (8) and the building (3) are all equipped with solar panels on the top, and the solar panel The output end of the power supply is connected to the battery, and the battery and the general controller are set at the electric vehicle charging station (8); The rainwater collection gallery pavilion (4) includes a column (403), the column (403) is installed on the foundation (414), the seat (404) is installed on the lower part of the column (403), and the roof is installed on the top of the column (403). A solar panel (408) is installed on the roof, the plane where the first solar panel (408) is located has a certain angle with the horizontal plane, a water retaining ring (406) is installed around the roof, and a rain collection tube box ( 401), a horizontal rainwater collection pipe (410) is installed in the rainwater collection pipe box (401), and a rainwater inlet (415) is opened on the horizontal rainwater collection pipe (410), and the corresponding rainwater inlet (415) on the roof A water inlet (405) is opened at the position, and the rainwater inlet (415) and the water inlet (405) are connected through a pipe that runs through the roof. A vertical rainwater collection pipe (411) and a horizontal rainwater collection pipe are installed inside the column (403). (410) communicates with the vertical rainwater collection pipe (411), and the end of the vertical rainwater collection pipe (411) communicates with the rainwater diversion device (20); A flow sensor (409) is installed at the rainwater inlet (415), a wind speed sensor (402) is installed on the top of the roof, and a pavilion controller (416) is installed on the column (403). The sensor (409) is electrically connected to the wind speed sensor (402); The outer surface of the wall of the building (3) is vertically provided with rainwater collection pipes (301) from top to bottom, and the rainwater collection pipes (301) communicate with the rainwater garden box (302) through horizontal pipes (303); the rainwater garden box (302) includes The box body (314), the inside of the box body (314) is provided with a planting soil layer (306), a sandy soil layer (312) and a gravel layer (313) from top to bottom, and the planting soil layer (306) is planted with drought-resistant and flood-resistant Plants (310), rainwater introduction pipes (311) and overflow pipes (307) are arranged on the top of the rain garden box (302), drip irrigation pipes (308) are embedded in the planting soil layer (306), and the bottom of the rain garden box (302) A purification rainwater collection pipe (309) is provided, the rainwater collection pipe (301) communicates with the rainwater introduction pipe (311) of the rain garden box (302) through the horizontal pipe (303), and the end of the overflow pipe (307) diverts the rain and sewage The device (20) is connected, the end of the drip irrigation pipe (308) and the end of the purified rainwater collection pipe (309) are connected with the water storage tank (22), and the drip irrigation pipe (308) is provided with a first water pump (14); A first groove (304) is provided at the connection between the rainwater collection pipe (301) and the first horizontal pipe (3031), and the bottom surface of the first groove (304) is flush with the bottom surface of the first horizontal pipe (3031). There is a certain distance L1 between the side of a groove (304) and the pipe wall of the rainwater collection pipe (301), the second horizontal pipe (3032) extends into the rainwater collection pipe (301) for a distance L2, and the rainwater collection pipe (301 ) is provided with a second groove (305) at the position corresponding to the second horizontal pipe (3032), and the bottom surface of the second groove (305) is flush with and connected to the bottom surface of the second horizontal pipe (3032). There is also a pipe gap (315) between the groove (305), the pipe wall of the rainwater collection pipe (301) and the second horizontal pipe (3032); the distance between the rainwater collection pipe (301) and the horizontal pipe (303) is from top to bottom setting the first groove (304) and the second groove (305); Solar street lamps (6) are installed on both sides of the street (5), the street drain (13) is connected with the street rainwater collection pipe (17), and the street rainwater collection pipe (17) diverts the rain and sewage through the street rainwater main collection pipe (19) The device (20) is connected, and the rain and sewage diversion device (20) is communicated with the city's main sewage pipeline (24) through the diversion sewage pipe (21), and the rain and sewage diversion device (20) is also communicated with the water storage tank (22), and the water storage tank (22 ) is communicated with the drip irrigation device (2) through the drip irrigation inlet pipe (23), the second water pump (25) is arranged on the drip irrigation inlet pipe (23), and the drip irrigation inlet pipe (23) is also connected with the reclaimed water pipe (27), and the reclaimed water pipe ( 27) A reclaimed water pipe solenoid valve (28) is arranged on the top; A soil moisture sensor is provided in the soil, a liquid level sensor is provided in the water storage tank (22), and both the soil moisture sensor and the liquid level sensor are connected to the master controller; The storage battery is electrically connected to the electric vehicle charging station (8), solar street light (6), flow sensor (409), wind speed sensor (402), pavilion controller (416), soil moisture sensor, liquid level sensor and the general controller , the master controller is electrically connected to the reclaimed water pipe solenoid valve (28), the second water pump (25) and the first water pump (14); The street rainwater collection pipe (17), the street rainwater main collection pipe (19), the rain and sewage diversion device (20), the water storage tank (22), the drip irrigation water inlet pipe (23), the second water pump (25), the reclaimed water pipe ( 27), the first water pump (14), and the city's total sewage pipeline (24) are all buried below the ground. 2. The urban rainwater intelligent collection and utilization system according to claim 1, characterized in that: the water storage tank (22) is a pp module. 3. The urban rainwater intelligent collection and utilization system according to claim 1, characterized in that: the inner bottom surface of the box (314) is a slope, and the side where the rainwater collection pipe (309) is purified is lower side. 4. The urban rainwater intelligent collection and utilization system according to claim 3, characterized in that: the inclination angle of the slope is 1-5°. 5. The urban rainwater intelligent collection and utilization system according to claim 1, characterized in that: said L1≥L2. 6. The urban rainwater intelligent collection and utilization system according to claim 1, characterized in that an overflow hole (407) is opened on the water retaining ring (406).