CN101467511B - Decentralized rainwater collection and infiltration irrigation device for urban road green belt - Google Patents

Abstract

The invention discloses a dispersion type rain-collection infiltrating irrigation apparatus for urban highway green area, comprising a water-collecting well and a infiltrating irrigation well. The water-collecting well is a closed well having a rainwater inlet grate on the mouth, and the infiltrating irrigation well is a sealed well; the water-collecting well and the infiltrating irrigation well are communicated with each other through a filter; the infiltrating irrigation well is connected with a infiltrating irrigation pipe and the side wall of the water-collecting well has an overflow portwhich is communicated with the municipal drainage apparatus. The infiltrating irrigation pipe is a double-walled corrugated porous infiltrating irrigation pipe, leading into the position under the urban green area for real-time urban highway rainwater collection and irrigation. The rainwater collection apparatus has small scale, occupies small urban space and has high utilization rate of rainwater.

Description

Decentralized rainwater collection and infiltration irrigation device for urban road green belt

technical field

The invention relates to a pavement collecting rainwater irrigation device, in particular to a distributed rain-collecting and infiltrating irrigation device for urban road green belts.

Background technique

Urban green space is an important symbol reflecting modern urban civilization and a good living environment. Increasing the coverage rate of urban green space, improving the structure of urban green space, scientifically operating and maintaining urban green space, and making it exert greater ecological and landscape benefits are important goals of modern city construction and management. However, with the increasing shortage of water resources, especially the increasing shortage of urban water resources brought about by the continuous expansion of urban scale, the issue of irrigation water for urban gardens and green spaces has attracted more and more attention from the society. At present, on the one hand, the water supply of urban green spaces is insufficient due to the shortage of urban water resources, and on the other hand, a large amount of urban rainwater resources have not been fully utilized. The city has a large number of road pavements and building roofs. These hardened surfaces will produce much larger surface runoff than bare ground when it rains. If the rainwater runoff from the urban hardened ground can be collected and fully utilized, it will not only reduce urban drainage. It can not only increase the supply of effective water resources, but also alleviate the contradiction of the shortage of ecological water in urban green spaces.

In the prior art, the main way to utilize urban rainwater resources is to adopt centralized collection, regulation, storage and utilization, that is, mainly collect rainwater from building roofs, road surfaces, courtyards, squares, etc., store it in rainwater storage tanks, and then extract it. Used for cleaning, car washing, green field irrigation, etc. The characteristic of this method is that random rainfall is collected through the hardened ground and transported to the rainwater storage tank. Through the adjustment and storage of the storage tank, the rainwater can be used at any time.

There are at least the following disadvantages in the above-mentioned prior art:

It is necessary to build a storage tank of a certain scale that matches the amount of rainwater used, which occupies a large urban space, and the distance from the storage tank to the green space is long, requiring power pressurization, high project cost, and low efficiency in collecting road rainwater. Low.

Contents of the invention

The object of the present invention is to provide a decentralized rain-collecting and infiltrating irrigation device for green belts of urban roads, which takes up little space, does not require power, and has a high utilization rate of collected rainwater.

The purpose of the present invention is achieved through the following technical solutions:

The distributed rainwater collection and infiltration irrigation device for green belts on urban roads of the present invention includes a rainwater collection device, and the rainwater collection device is connected with a seepage irrigation pipe, and the seepage irrigation pipe leads into the root soil of the green belt to be irrigated.

As can be seen from the above-mentioned technical solutions provided by the present invention, the distributed rainwater collection and infiltration irrigation device for urban road green belts according to the present invention, since the rainwater collection device is connected with a percolation irrigation pipe, the percolation irrigation pipe leads to the green belt to be irrigated. below. The utilization rate of collected rainwater is high, the rainwater collection device does not need a large scale, occupies a small urban space, and does not require power pressurization.

Description of drawings

Fig. 1 is the plane structure schematic diagram of the distributed rainwater infiltration irrigation device of urban road green belt of the present invention;

Fig. 2 is the A-A direction sectional view of Fig. 1;

Fig. 3 is the B-B direction sectional view of Fig. 1;

Fig. 4 is the C-C direction sectional view of Fig. 1;

Fig. 5 is a schematic diagram of the application state of the distributed rainwater collection and infiltration irrigation device for urban road green belts of the present invention;

Fig. 6 is a schematic plan view of the application state of the irrigation pipe in a specific embodiment of the present invention.

Detailed ways

The urban road green belt distributed rainwater infiltration device of the present invention, its preferred specific embodiment is as shown in Figure 1, comprises rainwater collection device, and rainwater collection device is connected with seepage irrigation pipe 4, and seepage irrigation pipe 4 leads to Below the landscaping that needs to be irrigated.

The rainwater collection device can include a water collection well 1 and a seepage and irrigation well 2. The water collection well 1 is an open well, and the seepage and irrigation well 2 is a sealed well. Connect with infiltration well 2. The water collection well 1 collects rainwater, enters the infiltration irrigation well 2 after being filtered, and enters it under the green belt to be irrigated through the infiltration irrigation pipe 4. The collected rainwater directly irrigates the green belt, and the utilization rate of the recovered rainwater is high. The rainwater collection device does not need a large scale, occupies a small urban space, and does not require power pressurization. According to needs, the rainwater collection device can also adopt other structural materials.

As shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 4, the filter device 5 can be a dividing plate, and the dividing plate is provided with at least one water delivery hole 51, and 2 to 6 water delivery holes 51 can be established, and the water delivery hole 51 A filter screen may be provided.

The filter device 5 can also be a filter plate, and the filter plate is provided with a plurality of fine holes, and the fine holes directly filter the rainwater. The filter device 5 can also be of other structural forms.

The water collection well 1 and the seepage and irrigation well 2 are arranged on the side of the city street, and can be arranged close to the road shoulder stone 6. The upper mouth of the water collection well 1 is provided with a grate 11 for road rainwater to enter, and the upper mouth of the seepage irrigation well 2 is provided with a loam cake twenty one. The accumulated water on the road surface 7 can enter in the accumulated water well 1 by the grate 11 like this, can not directly enter in the seepage irrigation well 2, guarantees the cleanliness of the accumulated water in the seepage irrigation well 2. Several ventilation holes can be offered on the loam cake 21 as required.

The side wall of the water collection well 1 is provided with an overflow port 31, and the overflow port 31 communicates with the urban drainage system 3. When the water level exceeds the overflow port 31, it will be drained away through the urban drainage system 3.

The percolating irrigation pipe 4 may be a double-wall corrugated porous percolating irrigation pipe. The inlet of the seepage irrigation pipe 4 can be provided with a filter screen.

As shown in Figure 5 and Figure 6, the seepage irrigation pipe 4 can be distributed vertically, horizontally or circumferentially, or any two or three combinations of vertically, horizontally and circumferentially under the green belt, and is connected by a tee 8 , can also wrap around trees 9. Sand and gravel can also be arranged around the seepage irrigation pipe 4, and the sand and gravel around the seepage irrigation pipe 4 and its surroundings have a certain water storage function to achieve a slow release effect.

The rain-collecting and infiltrating irrigation device for urban road green belts of the present invention is a mode of scattered collection and local utilization. The characteristic of this method is that the urban road surface is used as the rain collection surface, and the road green belt is used as the rainwater utilization belt. The road surface rainwater is collected in sections to the rainwater infiltration well, and the rainwater is dispersed to the green belt through the underground infiltration irrigation device. In the soil of the root system of the plant, the soil around the irrigation pipe can retain moisture to the maximum extent through the organic combination of the irrigation pipe and the ditch, and at the same time, excess water can replenish groundwater through infiltration. This method of segmentally collecting road surface rainwater for on-site irrigation and utilization of the present invention can make full use of the characteristics of urban roads with large pavement area, good rain collection conditions, and close distance from green belts. Combined with the functions of the well, it can not only be used as a rainwater well to discharge excess rainwater into the road drainage system when there is too much rain, but also can be used as a segmented and centralized storage well for road surface rainwater collection, and the road surface rainwater can be filtered and transported to the green belt for infiltration irrigation inside the device. It plays the role of integrating rainwater collection, drainage and infiltration irrigation.

Compared with the existing road rainwater wells, the rainwater collection and infiltration irrigation device for urban road green belt of the present invention has the function of collecting road surface rainwater and discharging it into the road drainage system, while the rain collection and infiltration irrigation device for road green belt of the present invention has the ability to collect road surface Rainwater, precipitation of sediment in rainwater, discharge of excessive rainwater, filtration of impurities in rainwater, transportation of rainwater into green belts, underground infiltration and irrigation of green belt plants, increase of soil moisture, and benefit of replenishment of groundwater sources are comprehensive functions. to the irrigation device.

The rain-collecting and seepage irrigation device for urban road green belts of the present invention relies on the gravity of the water level in the water collection well 1 and the seepage and irrigation well 2 to form a certain working water head in the seepage irrigation pipe, and does not need a pressurizing device. It is a self-pressurized, energy-saving rainwater use the device.

Utilizing the rain-collecting and infiltrating irrigation device for urban road green belts of the present invention can make full use of the road surface to collect rainwater and irrigate plants in the nearby green belts, thereby reducing the irrigation water consumption of road green belts, effectively increasing the utilization rate of rainwater resources, and reducing the water used for irrigation of green belts Reduce the cost and reduce the road congestion and traffic safety problems caused by water truck irrigation of green belts.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.

Claims (9)

1. A kind of decentralized rainwater collection and seepage irrigation device for urban road green belt, it is characterized in that, comprises rainwater collection device, and described rainwater collection device is connected with seepage irrigation pipe, and described seepage irrigation pipe leads to the green belt root system that needs irrigation in the soil; The rainwater collection device includes a water collection well and a seepage irrigation well, the water collection well is an open well covered with a filter grate, the seepage irrigation well is a sealed well, and the water collection well and the seepage irrigation well pass through The filter device communicates, and the seepage irrigation pipe is connected with the seepage irrigation well. 2. The distributed rain-collection and infiltration irrigation device for urban road green belts according to claim 1, wherein the filter device is a filter plate, and the filter plate is provided with a plurality of fine holes. 3. The distributed rainwater collection and infiltration irrigation device for urban road green belts according to claim 1, wherein the filter device is a partition, and the partition is provided with at least one water delivery hole, and the water delivery The holes are provided with filter nets. 4. The distributed rainwater collection and seepage irrigation device for urban road green belts according to claim 1, wherein the water collection well and the seepage and irrigation well are arranged on the side of the city street, and the upper mouth of the seepage and irrigation well is provided with cover. 5. The distributed rain-collection and infiltration irrigation device for green belts on urban roads according to claim 4, wherein an overflow port is provided on the side wall of the water collection well, and the overflow port communicates with the urban drainage system. 6. The distributed rain-collecting and seepage-irrigation device for urban road green belts according to claim 1, wherein the inlet of the seepage-irrigation pipe is provided with a filter. 7. The distributed rain-collecting and seepage-irrigation device for urban road green belts according to claim 1, characterized in that sand and gravel are arranged around the seepage-irrigation pipe. 8. The distributed rainwater collection and infiltration device for urban road green belts according to claim 1, wherein the seepage irrigation pipes are distributed vertically, horizontally or circumferentially, or longitudinally and horizontally below the green belts. And any combination of two or three in the ring direction. 9. The distributed rain-collecting infiltration irrigation device for green belts on urban roads according to claim 1, wherein the infiltration irrigation pipe is a double-walled corrugated porous infiltration irrigation pipe.

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