Sewage interception drainage ditch for recycling rainwater in airport

Abstract

The utility model discloses a sewage interception drainage ditch for airport rainwater recycling, and belongs to the technical field of airport drainage. The drainage ditch comprises a drainage ditch body, a sinking section sewage interception area is arranged in the middle section in the drainage ditch body in the drainage flow direction, a sludge storage and discharge area, an end sewage interception grating and a top sewage interception grating are arranged at the tail end of the sinking section sewage interception area, and a raised water return platform is arranged at one corner of the tail end of the sludge storage and discharge area. A sludge and sand discharge pump and a sludge and sand discharge pipe are arranged at the bottom of the sludge storage and discharge area; a water return pump and a water return pipe are mounted on the water return platform. The drainage ditch main body has a sewage intercepting function, the flow passing capacity of the drainage ditch main body is improved, meanwhile, rainwater is stored and recycled, water resources are fully utilized, and good economic benefits are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of airport drainage, and in particular relates to a sewage interception drainage ditch used for airport rainwater recycling. Background Art

[0002] In existing airports, there are many cases of siltation and blockage of airport drainage ditches due to the washing of dead branches, weeds, gravel, etc. in the soil area by rainwater into the airport drainage ditch. The blockage of airport drainage ditches can easily lead to the failure of rainwater to be discharged from the flight area in time. The accumulation of water in the flight area will seriously affect flight safety and even cause the airport to be suspended. Therefore, it is very necessary to set up certain sewage interception facilities to prevent the dead branches, weeds, gravel and other impurities in the soil area from clogging the airport drainage ditch. For the airport flight area, due to the large area, the daily maintenance and management of vegetation in the soil area has caused great difficulties, especially the watering and greening. On the contrary, when it rains, rainwater is discharged outside the flight area, and rainwater resources cannot be fully utilized. If certain measures can be taken to store rainwater during rainfall and use it for watering and greening in the soil area, it will reduce the workload of daily maintenance and management of vegetation in the soil area while saving and utilizing rainwater resources, achieving better results. Utility Model Content

[0003] The utility model aims to provide a sewage interception drainage ditch for airport rainwater recycling, which can realize both sewage interception function and rainwater storage and recycling.

[0004] A sewage interception drainage ditch for airport rainwater reuse, characterized in that it includes a drainage ditch main body, a sinking section sewage interception area is arranged in the middle section of the drainage ditch main body along the drainage flow direction, a mud storage and discharge area is arranged at the end of the sinking section sewage interception area, the depth of the mud storage and discharge area is greater than that of the sinking section sewage interception area, a vertical terminal sewage interception grid is arranged between the sinking section sewage interception area and the mud storage and discharge area, a horizontal top sewage interception grid is arranged on the top of the mud storage and discharge area, and is connected to the terminal sewage interception grid; a raised return water platform is arranged at a corner at the end of the mud storage and discharge area, and the return water platform is lower than the bottom of the sinking section sewage interception area; a mud and sand discharge pump is arranged at the bottom of the mud storage and discharge area, and a mud and sand discharge pipe is connected to the outside of the drainage ditch main body, a return water pump is installed on the return water platform, and the return water pipe is connected to the airport greening water area.

[0005] Preferably, the length of the sewage interception area of ​​the sinking section is not less than 1.0 m, and the width is the same as the drainage ditch body; the sinking depth of the sewage interception area of ​​the sinking section is not less than 0.5 m compared to the bottom of the drainage ditch body.

[0006] Preferably, the length of the mud storage and discharge area is not less than 2.0 m, and the width is the same as the drainage ditch body; the sinking depth of the mud storage and discharge area compared to the bottom of the sedimentation section sewage interception area is not less than 1.5 m.

[0007] Preferably, the length of the return water platform is not less than 1.5 m, and the width is not less than half of the width of the mud storage and discharge area; the return water platform is raised by not less than 0.5 m compared to the bottom of the mud storage and discharge area.

[0008] Preferably, the width of the terminal sewage interception grille is the same as that of the drainage ditch body, the height is the same as the sinking height of the sewage interception area of ​​the sinking section compared to the bottom of the drainage ditch body, and the spacing between the grille bars is not more than 1.0 cm.

[0009] Preferably, the length of the top sewage interception grid is consistent with the length of the mud storage and discharge area, and the spacing between the grid bars is not greater than 1.0 cm.

[0010] The beneficial effects of the utility model are as follows: a sinking section interception area is set in the drainage ditch body to prevent dead branches, weeds, gravel and other large impurities from silting up and blocking the drainage ditch body, thereby increasing the flow capacity of the drainage ditch body. Finer silt is deposited at the bottom of the mud storage and discharge area and discharged through the mud and sand discharge pump, and the square column is blocked; a return pump and a return pipe are set to recycle the rainwater on the upper layer, making full use of water resources, with good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The schematic diagram of the structure of a sewage interception drainage ditch used for airport rainwater reuse.

[0012] Figure 2 It is a schematic diagram of the AA section structure.

[0013] Figure 3 It is a schematic diagram of the BB cross-section structure.

[0014] Figure 4 Schematic diagram of the CC cross-section structure.

[0015] In the figure: 1-drainage ditch main body, 2-sinking section sewage interception area, 3-mud storage and discharge area, 4-return water platform, 5-mud and sand discharge pump, 6-mud and sand discharge pipe, 7-return water pump, 8-return water pipe, 9-end sewage interception grille, 10-top sewage interception grille. DETAILED DESCRIPTION

[0016] Embodiment 1: A sewage interception drainage ditch for airport rainwater reuse, comprising a drainage ditch body 1, a sinking section sewage interception area 2 is arranged in the middle section of the drainage ditch body 1 along the drainage flow direction, the length of the sinking section sewage interception area 2 is 2.0m, the width is the same as the drainage ditch body 1, both are 1.0m, and the sinking depth is 0.5m compared to the bottom of the drainage ditch body 1. A mud storage and discharge area 3 is arranged at the end of the sinking section sewage interception area 2, the length of the mud storage and discharge area 3 is 2.0m, the width is 1.0m, and the sinking depth is 1.5m compared to the bottom of the sinking section sewage interception area 2. A vertical terminal sewage interception grille 9 is arranged between the sinking section sewage interception area 2 and the mud storage and discharge area 3, the terminal sewage interception grille 9 is 1.0m wide, 0.5m high, and the grid spacing is 1.0cm; a horizontal top sewage interception grille 10 is arranged at the top of the mud storage and discharge area 3 and is connected to the terminal sewage interception grille 9, the length of the top sewage interception grille is 3.5m, and the grid spacing is 1.0cm. A raised water return platform 4 is set at a corner at the end of the mud storage and discharge area 3. The water return platform 4 is 1.5m long and 0.5m wide. The water return platform 4 is 0.5m higher than the bottom of the mud storage and discharge area 3. A mud and sand discharge pump 5 is set at the bottom of the mud storage and discharge area 3, and a mud and sand discharge pipe 6 is connected to the outside of the drainage ditch body 1. A water return pump 7 is installed on the water return platform 4, and a water return pipe 8 is connected to the airport greening water area.

[0017] After the airport rainwater flows into the drainage ditch body 1, the impurities with a volume larger than 1.0 cm, such as dead branches, weeds, and gravel, are intercepted by the end interception grid 9 in the sediment interception area 2, or intercepted by the top interception grid 10 outside the drainage ditch body 1. The silt with a volume smaller than 1.0 cm is deposited in the mud storage and discharge area 3 and is pumped out by the mud and sand discharge pump 5; the rainwater in the upper layer is pumped out by the return water pump 7 to the airport greening area for recycling.

Claims

1. A sewage interception drainage ditch for airport rainwater reuse, characterized in that It includes a drainage ditch main body, a sinking section sewage interception area is arranged in the middle section of the drainage ditch main body along the drainage direction, a mud storage and discharge area is arranged at the end of the sinking section sewage interception area, the depth of the mud storage and discharge area is greater than that of the sinking section sewage interception area, a vertical terminal sewage interception grid is arranged between the sinking section sewage interception area and the mud storage and discharge area, a horizontal top sewage interception grid is arranged on the top of the mud storage and discharge area, and is connected to the terminal sewage interception grid; a raised return water platform is arranged at a corner at the end of the mud storage and discharge area, and the return water platform is lower than the bottom of the sinking section sewage interception area; a mud and sand discharge pump is arranged at the bottom of the mud storage and discharge area, and the mud and sand discharge pipe is connected to the outside of the drainage ditch main body, a return water pump is installed on the return water platform, and the return water pipe is connected to the airport greening water use area.

2. A sewage interception drainage ditch for airport rainwater reuse as claimed in claim 1, characterized in that The length of the sewage interception area in the sunken section shall not be less than 1.0m, and its width shall be the same as that of the drainage ditch body; the sinking depth of the sewage interception area in the sunken section shall not be less than 0.5m compared to the bottom of the drainage ditch body.

3. A sewage interception drainage ditch for airport rainwater reuse as claimed in claim 1, characterized in that The length of the mud storage and discharge area is not less than 2.0m, and the width is the same as the drainage ditch body; the sinking depth of the mud storage and discharge area compared to the bottom of the sedimentation section sewage interception area is not less than 1.5m.

4. The sewage interception drainage ditch for airport rainwater reuse as claimed in claim 1, characterized in that The length of the return water platform is not less than 1.5m, and the width is not less than half of the width of the mud storage and discharge area; the return water platform is raised by not less than 0.5m compared to the bottom of the mud storage and discharge area.

5. The sewage interception drainage ditch for airport rainwater reuse as claimed in claim 1, characterized in that The width of the terminal sewage interception grille is the same as that of the drainage ditch body, the height is the same as the sinking height of the sewage interception area of ​​the sinking section compared to the bottom of the drainage ditch body, and the spacing between the grille bars is not more than 1.0 cm.

6. The sewage interception drainage ditch for airport rainwater reuse as claimed in claim 1, characterized in that The length of the top sewage interception grid is consistent with the length of the mud storage and discharge area, and the spacing between the grid bars is not greater than 1.0 cm.

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