CN205907750U - Road surface rainwater purifies collecting system from infiltration - Google Patents

Abstract

The utility model provides a road surface rainwater self-permeation purification collection system, which solves the problem that rainwater on urban hardened road surfaces is difficult to collect, and includes a long groove-shaped sump lower than the hardened road surface. The sedimentation tank is arranged along the direction of the sump. The outer side of the sedimentation tank is provided with a water collection port. The water collection port is located above the side of the sedimentation tank. The bottom of the water collection port is connected to the middle of the sedimentation tank. The water collection tank is filled with PP water storage modules, and the gravel layer, geotextile layer, modified sand layer, and geotextile layer are laid in sequence from bottom to top above the PP water storage module to form a filter layer, and a cover plate is provided above the sedimentation tank. It forms a closed space with the sedimentation tank. An open overflow well is provided on the cover plate. The overflow well is provided with a cover body and communicates with the outside. The overflow well on the same side is connected through an overflow pipe. The utility model can effectively Rainwater from hardened pavement is collected.

Description

A pavement rainwater self-permeation purification collection system

technical field

The utility model relates to the field of rainwater collection, in particular to a road surface rainwater self-permeation purification collection system.

Background technique

With the rapid progress of urbanization, there are more and more urban hardened roads, and the corresponding urban green area is also less and less. Most of the green areas, wetlands, ditches and other areas with the function of water conservation in the natural state have evolved into hardened roads. As a result, the city can only rely on the municipal pipe network for drainage when facing heavy rainfall. On the one hand, this drainage method has a higher design standard for the municipal pipe network; Because for most cities, the groundwater is generally short of water due to the large number of people who need to be supplied; in view of the above situation, my country first proposed the concept of "sponge city" in 2012, and put forward new ideas for the construction of urban roads. Require. The so-called sponge city is a new generation of urban stormwater management concept, which means that the city has good elasticity in response to natural disasters brought by rainwater, and can have good elasticity like a sponge. Conservation of rainwater.

Contents of the invention

In view of the above situation, in order to overcome the defects of the prior art, the purpose of this utility model is to provide a road surface rainwater self-permeation purification collection system, the purpose is to solve the problem that hardened urban road surface rainwater is difficult to collect.

The technical solution is to include a long trough-shaped sump lower than the hardened road surface. Sedimentation tanks separated from the sump are arranged on both sides of the sump. The sedimentation tank is arranged along the direction of the sump. The water outlet is located above the side of the sedimentation tank, the bottom of the water collection port is connected to the middle of the sedimentation tank, and the side of the sedimentation tank opposite to the water collection port is connected to the water collection tank. Cloth layer, above the PP water storage module, a gravel layer, a geotextile layer, a modified sand layer, and a geotextile layer are sequentially laid from bottom to top to form a filter layer, and the connection between the sedimentation tank and the sump is covered with the thickness of the filter layer to form a sedimentation The clarified liquid in the upper layer of the pool enters the structure of the PP water storage module through the filter layer. There is a cover plate above the sedimentation tank. The cover plate and the sedimentation tank form a closed space. The cover plate is equipped with an open overflow well. The overflow well A cover is provided and communicated with the outside, and the overflow well on the same side is communicated through an overflow pipe.

The sump is a rectangular trough structure with an open upper end. Two sedimentation tanks with trapezoidal cross-sections are arranged on both sides of the sump. The upper end of the sedimentation tank is higher than the upper edge of the sump. The connection between the sedimentation tank and the water collection port is a porous structure arranged at intervals.

A clay layer is covered above the filter layer, and a vegetation layer is planted above the clay layer.

The length of the settling tank matches the length of the sump. The sump is multiple and spaced apart. It also includes water intake wells. The water intake wells are spaced apart along the length of the sump. The lower ends of the wells extend to the PP storage tank. A submersible water pump is installed below the water module, and the upper end of the water intake well extends through the filter layer and the clay layer to expose the surface.

The utility model can effectively collect the rainwater on the hardened road surface. After the rainwater is filtered by the filter layer and the PP water storage module, most of the sediment and impurities in the rainwater are filtered, and the setting is made by the green belt on the hardened road surface. Concealed and easy to use.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a water collecting port provided by the utility model.

Fig. 2 is a schematic cross-sectional view of a water intake well provided in the utility model.

detailed description

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Embodiment 1: As shown in Figure 1 and Figure 2, a road surface rainwater self-permeation purification collection system includes a long groove-shaped sump 1 lower than the hardened road surface, the sump 1 is a rectangular groove structure with an open upper end, and the groove The outside of the two side walls of the body is provided with an independent cavity to form a sedimentation tank 2. The length of the sedimentation tank 2 is the same as that of the sump 1. The two sides of the sump 1 are provided with two trapezoidal sedimentation tanks 2. The sedimentation tank 2 The upper end is higher than the upper edge of the sump 1, the connection between the sedimentation tank 2 and the sump 1, and the connection between the sedimentation tank 2 and the water collection port 3 are all porous structures arranged at intervals, one is to form a support, and the other is used for water passage , the water collection ports 3 are multiple and arranged at intervals, the water collection tank 1 is filled with PP water storage modules 4, and the water storage modules 4 are covered with a geotextile layer 5, and the top of the PP water storage modules 4 is from bottom to top A gravel layer 6, a geotextile layer 5, a modified sand grain layer 7, and a geotextile layer 5 are successively laid to form a filter layer, the top of the filter layer is covered with a clay layer 10, and a vegetation layer is planted above the clay layer 10, and the sedimentation tank 2 The connection with the sump 1 is covered with the thickness of the filter layer to form a structure in which the clarified liquid in the upper layer of the sedimentation tank 2 enters the PP water storage module 4 through the filter layer. A cover plate 8 is provided above the sedimentation tank 2, and the cover plate 8 is connected to the sedimentation tank 2 A closed space is formed, the cover plate is provided with an open overflow well 9, the overflow well 9 is provided with a cover body and communicates with the outside, the overflow well 9 on the same side communicates through an overflow pipe, and also includes a water intake well 11, The water intake wells 11 are arranged at intervals along the length direction of the sump 1, the lower ends of the water intake wells 11 extend to the bottom of the PP water storage module 4 and a submersible water pump 12 is installed, and the upper ends of the water intake wells 11 extend through the filtered water layer and the clay layer 10 to expose the surface .

When the utility model is in specific use, the joint between the hardened road surface and the green belt is the curb belt, the water collection port 3 is arranged at the curb belt, and the water collection pool 1 is dug in the green belt, and the water collection pool 1 , water collection port 3, sedimentation tank 2, water intake well 11 and other walls are constructed with an anti-seepage structure to prevent rainwater from being stored. When the hardened road accumulates water, the rainwater first enters the water collection port 3 and is filtered out by the grid plate. sundries, such as leaves, plastic bags, packaging, etc., carrying small impurities and a large amount of sediment in the rainwater sedimentation tank 2, after preliminary clarification by the battery, the clarified rainwater in the upper part enters the filter layer from the side of the filter layer, and passes through The multi-layer filtration of the filter layer forms the filtration of rainwater. The filtered rainwater enters the PP water storage module 4 and the water intake well 11; The vegetation layer, the rainwater entering the vegetation layer enters the filter layer through the vegetation layer and the clay layer 10, and repeats the above filtering procedure.

The utility model can effectively collect the rainwater on the hardened road surface. After the rainwater is filtered by the filter layer and the PP water storage module 4, most of the silt and impurities in the rainwater are filtered, and the setting is made by using the green belt on the hardened road surface. Relatively hidden and easy to use.

Claims (4)

1. a kind of rainwater on road surface purifies collection system from infiltration, including the long trough collecting-tank (1) less than hard surface, its feature It is, collecting-tank (1) is respectively provided on two sides with the sedimentation tank (2) being separated by with collecting-tank (1), and sedimentation tank (2) is along collecting-tank (1) direction Lay, the outside of sedimentation tank (2) is provided with inlet (3), inlet (3) is located above the side of sedimentation tank (2), inlet (3) bottom Portion connects with the middle part of sedimentation tank (2), upper side connection collecting-tank (1) relative with inlet (3) of sedimentation tank (2), collecting-tank (1) Inside it is filled with pp water storage module (4), described water storage module (4) bag is provided with geotechnological layer of cloth (5), described pp water storage module (4) Laying gravel layer (6), geotechnological layer of cloth (5), modified grains of sand layer (7), geotechnological layer of cloth (5) form and filter successively from bottom to top for top Layer, sedimentation tank (2) covers filter layer thickness with collecting-tank (1) connectivity part, forms sedimentation tank (2) supernatant liquid and enters through filter layer Enter the structure of pp water storage module (4), above described sedimentation tank (2), be provided with cover plate (8), cover plate (8) and sedimentation tank (2) form close The space closed, cover plate is provided with open overflow well (9), overflow well (9) be provided with lid and and ft connection, positioned at homonymy overflow Stream well (9) is connected by overflow pipe.

2. a kind of rainwater on road surface according to claim 1 purifies collection system it is characterised in that described catchments from infiltration Pond (1) is the open rectangle trough body structure in a upper end, and it is trapezoidal sedimentation tank that the both sides of collecting-tank (1) are provided with two cross sections (2), sedimentation tank (2) upper end exceeds edge above collecting-tank (1), the connectivity part of sedimentation tank (2) and collecting-tank (1), sedimentation tank (2) It is spaced cavernous structure with inlet (3) connectivity part.

3. a kind of rainwater on road surface according to claim 1 purifies collection system from infiltration it is characterised in that described filtration It is coated with clay layer (10) above layer, plant above clay layer (10) and be implanted with vegetable layer.

4. a kind of rainwater on road surface according to claim 1 purifies collection system from infiltration it is characterised in that described precipitation Pond (2) length is matched with collecting-tank (1) length, and described inlet (3) is multiple and is separated by setting, also includes water intake well (11), described water intake well (11) is separated by setting along collecting-tank (1) length direction, and water intake well (11) lower end extends to pp water-retention mould Below block (4) and be provided with submerged type water pump (12), water intake well (11) upper end extends through filtered water level and clay layer (10) exposes Earth's surface.