Airport sewage intercepting and filtering type gutter inlet

Abstract

An airport pollutant intercepting and filtering type gutter inlet comprises a well body, a well ring is arranged at the top of the well body, a rainwater grate and a pollutant intercepting basket are installed on the well ring, more than half of the area of the pollutant intercepting basket is arranged to be a permeable area, the rest of the pollutant intercepting basket is arranged to be a non-permeable area, and a water purifying assembly is arranged below the permeable area of the pollutant intercepting basket. The water purification assembly is composed of a transverse plate at the bottom and vertical plates fixed to the left side wall and the right side wall in the well body, water leakage holes are formed in the transverse plate, an impurity storage area, a first-stage filtering layer and a second-stage filtering layer are sequentially arranged in the water purification assembly from top to bottom, and a water passing channel is reserved between the water purification assembly and the well body; the bottom in the well body is communicated with a gutter inlet connecting pipe. The sewage interception assembly is arranged in the well body to intercept impurities in initial rainwater, the purification assembly is arranged to further purify the initial rainwater, primary treatment of the initial rainwater is achieved, and the situation that the initial rainwater is discharged into an environmental water body to pollute the environmental water body is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of airport drainage, and specifically discloses an airport sewage interception and filtering type rainwater outlet. Background Art

[0002] In the airport drainage system, rainwater inlets are often set up to collect rainwater. During the initial rainfall, the rainwater washes the airport runway, taxiway, earth runway, earth surface area, apron and other areas, resulting in a large amount of impurities in the initial rainwater. On the one hand, if these impurities are discharged into the discharge water body outside the airport through the rainwater pipe network system, the discharge water body will be polluted, causing a certain impact on the environment; on the other hand, since impurities enter the rainwater pipe network system, they often cause siltation and blockage inside the rainwater pipe network system, causing poor drainage of the rainwater pipe network, and even causing serious waterlogging at the airport to form flood disasters. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an airport pollution interception and filtering type rainwater inlet.

[0004] A sewage interception and filtration type rainwater inlet for an airport, characterized in that it comprises a well body, a rainwater grate, a well ring, a sewage interception basket and a water purification component, the well body is buried underground, a well ring is arranged on the top of the well body, and the rainwater grate is installed on the well ring; an area more than half of the sewage interception basket is arranged as a permeable area, and the remaining part is arranged as an impermeable area, the outer ring on the top of the sewage interception basket is a hanging ear, and is hung on the well ring and located below the rainwater grate through the hanging ear; a water purification component is arranged below the permeable area of ​​the sewage interception basket, the water purification component is composed of a horizontal plate at the bottom and vertical plates fixed on the left and right side walls of the well body, and a leakage hole is opened on the horizontal plate, an impurity storage area, a primary filter layer and a secondary filter layer are arranged in the water purification component from top to bottom, the water purification component is fixed on any front and rear side walls of the well body, and a water passage is reserved between the outer wall of the vertical plate and the inner wall on the other side of the well body; the bottom of the well body is connected to the rainwater inlet connecting pipe.

[0005] Furthermore, the well body is a reinforced concrete structure; the horizontal plate and the vertical plate of the water purification component are both concrete plates.

[0006] Furthermore, the depth of the sewage interception basket is not less than 0.2m.

[0007] Furthermore, the depth of the impurity storage area is 20cm-50cm; the first-level filtration area uses clean gravel with a diameter of 30mm-50mm and a thickness of not less than 20cm; the second-level filtration area uses coarse sand with a diameter of 5mm-20mm and a thickness of not less than 20cm; the diameter of the leakage holes is not greater than 5mm and is evenly distributed on the concrete cross plate.

[0008] Furthermore, the width of the water passage is not less than 0.2 m.

[0009] The beneficial effect of the utility model is that the rainwater outlet intercepts impurities in the initial rainwater by setting a sewage interception basket in the well body, thereby preventing impurities from entering the rainwater pipe network system and preventing the rainwater pipe network system from being blocked. The initial rainwater is further purified by a purification component set in the well body, thereby achieving preliminary treatment of the initial rainwater and preventing it from polluting the environmental water body after being discharged into the environmental water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of an airport sewage interception and filtration type rainwater inlet.

[0011] Figure 2 It is a schematic diagram of the sewage interception basket structure.

[0012] Figure 3 Schematic diagram of the water component structure.

[0013] Figure 4 This is the internal plan of the well body.

[0014] Among them: 1-well body, 2-rainwater grate, 3-well ring, 4-waste interception basket, 41-permeable area, 42-impermeable area, 43-hanging ear, 5-water purification component, 51-horizontal plate, 52-vertical plate, 53-impurity storage area, 54-primary filter layer, 55-secondary filter layer, 56-leakage hole, 6-water passage, 7-rainwater outlet connecting pipe. DETAILED DESCRIPTION

[0015] Embodiment 1: An airport sewage interception and filtration type rainwater inlet, comprising a well body 1, a rainwater grate 2, a well ring 3, a sewage interception basket 4 and a water purification component 5. The well body 1 is buried underground and is a reinforced concrete structure. A well ring 3 is arranged on the top of the well body 1, and the rainwater grate 2 is made of ductile iron and installed on the well ring 3. The sewage interception basket 4 has a depth of 0.3m, and an area of ​​more than half of the basket body is set as a water-permeable area 41, and the remaining part is set as a water-impermeable area 42. The water-permeable area 41 is an open area for water to pass through, and the water-impermeable area 42 is a closed water-impermeable area; the sewage interception basket 4 is an integrated structure of plastic material, and its top outer ring is a hanging ear 43, and it is hung on the well ring 3 and located under the rainwater grate 2 through the hanging ear 43. A water purification component 5 is arranged below the water permeable area of ​​the sewage interception basket 4. The water purification component 5 is composed of a horizontal plate 51 at the bottom and a vertical plate 52 fixed to the left and right side walls of the well body, and a leakage hole 56 is opened on the horizontal plate. The horizontal plate 51 and the vertical plate 52 are both concrete plates; an impurity storage area 53, a primary filter layer 54 and a secondary filter layer 55 are arranged in the water purification component 5 from top to bottom. The impurity storage area 53 is 20 cm deep and is used to temporarily store small particles of impurities carried in the initial rainwater; the primary filter area 54 uses clean gravel with a diameter of 30mm-50mm to intercept most of the impurities in the rainwater, and the thickness is 30cm; the secondary filter area 55 uses coarse sand with a diameter of 5mm-20mm and a thickness of 30cm; the leakage hole 56 has a diameter of 5mm, and a total of 8 holes are arranged, which are evenly distributed on the concrete horizontal plate 51. The water purification assembly 4 is fixed on either side of the well 1, and a water passage 6 is left between the outer wall of the vertical plate 52 and the inner wall of the other side of the well 1, which is located below the impermeable area 42 and has a width of 0.2m. The bottom of the well 1 is connected to the rainwater outlet connection pipe 7 to access the rainwater pipe network system.

[0016] A sewage interception basket 4 is arranged in the well body 1 to intercept impurities in the initial rainwater, thereby preventing the impurities from entering the rainwater pipe network system and preventing the rainwater pipe network system from being blocked. The initial rainwater is further purified by arranging a purification group 5 to achieve preliminary treatment of the initial rainwater, thereby preventing it from polluting the environmental water body after being discharged into the environmental water body.

Claims

1. An airport sewage interception and filtering rainwater inlet, characterized by: It includes a well body, a rainwater grate, a well ring, a sewage interception basket and a water purification component. The well body is buried underground, a well ring is arranged on the top of the well body, and the rainwater grate is installed on the well ring; more than half of the area of ​​the sewage interception basket is set as a permeable area, and the remaining part is set as an impermeable area. The outer ring of the top of the sewage interception basket is a hanging ear, and it is hung on the well ring and located under the rainwater grate through the hanging ear; a water purification component is arranged below the permeable area of ​​the sewage interception basket, and the water purification component is composed of a horizontal plate at the bottom and vertical plates fixed on the left and right side walls of the well body, and a leakage hole is opened on the horizontal plate. The impurity storage area, the primary filter layer and the secondary filter layer are arranged in the water purification component from top to bottom, and the water purification component is fixed on any front and rear side walls of the well body, and a water passage is left between the outer wall of the vertical plate and the inner wall of the other side of the well body; the bottom of the well body is connected to the rainwater outlet connecting pipe.

2. The airport sewage interception and filtering rainwater inlet as claimed in claim 1, characterized in that The well body is a reinforced concrete structure; the horizontal plate and the vertical plate of the water purification component are both concrete plates.

3. The airport sewage interception and filtering rainwater inlet as claimed in claim 1, characterized in that The depth of the sewage interception basket is not less than 0.2m.

4. The airport sewage interception and filtering rainwater inlet as claimed in claim 1, characterized in that The depth of the impurity storage area is 20cm-50cm; the first-level filter layer uses clean gravel with a diameter of 30mm-50mm and a thickness of not less than 20cm; the second-level filter layer uses coarse sand with a diameter of 5mm-20mm and a thickness of not less than 20cm; the diameter of the leakage holes is not greater than 5mm and is evenly distributed on the concrete horizontal plate.

5. The airport sewage interception and filtering rainwater inlet as claimed in claim 1, characterized in that The width of the water passage is not less than 0.2m.

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