CN218871523U

CN218871523U - Infiltration dirt-intercepting type rainwater sand-settling device

Info

Publication number: CN218871523U
Application number: CN202221357639.1U
Authority: CN
Inventors: 秦砚瑶; 戴辉自; 刘军; 金高屹; 蒋洋; 吴学荣
Original assignee: CCTEG Chongqing Engineering Group Co Ltd
Current assignee: CCTEG Chongqing Engineering Group Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-04-18
Anticipated expiration: 2032-05-31

Abstract

The application discloses infiltrate and cut dirty type rainwater desilting device mainly relates to rainwater purification technology field, including well and the desilting structure of intaking, its characterized in that: the water inlet well comprises a water inlet well, the sand sediment structure comprises a sand sediment well, and the bottom of the water inlet well is connected with the sand sediment well through a water inlet; the top of the sand sediment trap is provided with a sand sediment trap cover; on the well wall of the sand sediment trap, a water outlet is arranged at the same elevation opposite to the water inlet, and a sewage interception grid is arranged in the water outlet; in the sand sediment trap, a sewage interception filtering device is arranged below the water inlet elevation; and a filter medium is fixed below the sewage interception and filtration device and is communicated with the outside of the sand sediment trap. The rainwater sand sediment trap in this application solves current sand sediment trap through desilting structure and delivery port and lacks the infiltration function, is difficult to handle the problem of a large amount of rainwater.

Description

Infiltration dirt-intercepting type rainwater sand-settling device

Technical Field

The utility model mainly relates to a rainwater purifies technical field, concretely relates to infiltrate and cut dirty type rainwater desilting device.

Background

The rainwater sand trap is a facility for carrying out sand trap treatment on passing rainwater, the silt of the rainwater mixed with the silt is deposited at the lower part of the sand trap after passing through the sand trap, and the water is discharged from a water discharge outlet. The sand-settling well is mainly used in a drainage pipeline line, sand, silt, garbage and other objects in a drainage pipe are settled in the well, the cleaning is convenient, and the pipeline is kept smooth.

During the rainfall, facilities such as drainage ditch near the rainwater scouring ground formation runoff flow direction, road square initial stage rainwater under the condition of not handling, and the straight row gets into rainwater inspection shaft and can lead to rainwater drainage shaft to appear silting phenomenon, and the rainwater well is difficult for the desilting to handle, then sets up the desilting well before the rainwater sinks into the inspection shaft and subsides silt in the rainwater. At present, the sunken sand trap of escape canal terminal adopts the recessed mode in ditch bottom basically, and the hardening of sand trap bottom is handled, does not have the infiltration function, and the unable outward row of ponding appears in the desilting pit in practical application, finally appears "black smelly" phenomenon, and simultaneously, when meeting with the heavy rainfall, when needing to carry out the desilting to a large amount of rainwater, the ponding problem can be more obvious.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it cuts dirty type rainwater desilting device to anticipate to solve present desilting well interior ponding and be difficult to arrange outward, appear "black smelly" phenomenon easily, be difficult to handle the problem of a large amount of rainwater.

The infiltration sewage interception type rainwater desilting device comprises a water inlet well and a desilting structure, wherein the desilting structure comprises a desilting well, the bottom of the water inlet well is provided with a water inlet, and the desilting well is communicated with the water inlet well through the water inlet; the top of the sand sediment trap is provided with a sand sediment trap cover; a water outlet communicated with the sand sediment trap is arranged on the wall of the sand sediment trap, the water outlet and the water outlet surface of the water inlet are at the same height, and a sewage interception grid is arranged in the water outlet; a sewage interception filtering device is arranged in the sand sediment trap and is positioned below the water inlet; and a filter medium is fixed below the sewage interception filter device and is communicated with the outside.

The utility model discloses a theory of operation: during rainfall, rainwater firstly enters the water inlet well, enters the sand sediment trap through the water inlet in the bottom of the water inlet well, naturally flows downwards into the dirt intercepting and filtering device under the action of gravity after entering the sand sediment trap, and then enters the filtering medium for secondary filtering after passing through the filtering device, and the rainwater after secondary filtering permeates into soil outside from the filtering medium. When a large amount of rainwater enters the sand sediment trap and the sewage interception filtering device and the filtering medium cannot be normally treated, overflowing rainwater can directly overflow into the rainwater pipe network through the water outlet, a sewage interception grid is arranged in the water outlet and used for intercepting large-particle suspended pollutants.

The utility model has the advantages that: the bottom of the water inlet well is provided with a water inlet, rainwater can be enabled to naturally flow into the sand sediment trap, rainwater finally permeates into surrounding soil through the sewage interception filtering device and the filtering medium, when the water flow is large, overflowed rainwater enters the water outlet, and the sewage interception grille in the water outlet can effectively intercept large-particle-size suspended pollutants such as fallen leaf garbage and the like in rainwater, so that the phenomena of blocking of downstream pipelines and black and odor caused by entering of organic matters are prevented. The sediment trap bottom in this scheme adopts non-hardening to handle, adopts filter medium, can effectively filter and infiltration sediment pit internal ponding, avoids ponding to remain for a long time and blackens and smelly, and the rainwater infiltrates supplementary groundwater simultaneously, keeps soil moist, maintains groundwater and soil ecological balance, has important help to city ecological development.

Furthermore, the sewage interception and filtration device is a filter screen which is used for filtering silt in rainwater and has a purification effect.

Further, the filter medium is wrapped by a permeable geotextile. The permeable geotextile can prevent silt and planting soil from entering the filter medium, the service life of the filter medium is prolonged, and the permeable geotextile can not influence the infiltration of rainwater.

Furthermore, a waterproof layer is arranged on the inner side of the water inlet well, and a waterproof layer is also arranged on the inner side of the sand sediment trap, so that the waterproof layer can enhance the water storage effect of the water inlet well and the sand sediment trap, prevent rainwater from wetting the well wall and reducing the service life of the well wall, and ensure that the rainwater flows in the sand sediment trap according to a preset route.

Furthermore, a bolt is installed on one side, far away from the water outlet, of the top end of the sand-sinking well body, an angle steel is fixed on the bolt, and a steel plate is fixed on the angle steel. The utility model discloses generally install between outdoor escape canal terminal and rainwater inspection shaft, the steel sheet mainly used separates the heavy husky well lid and such as drainage system of escape canal apron one type. The steel plate is a part which is in soil contact with planting soil, compared with a traditional cement belt, the vertically arranged steel plate is only a metal belt from the perspective of pedestrians, and the steel plate is more attractive.

Furthermore, a groove for filling planting soil is arranged on the sand sediment trap cover. After planting soil is filled in the groove and plants are planted, the sand sediment well cover can be hidden in greening, the ground part of the device is more attractive, and the requirement of hiding the well cover in high-quality landscape is met.

Further, a manhole cover handle is arranged on one side, close to the water outlet, of the upper surface of the sand sediment trap cover. The handle makes things convenient for maintainer to open the well lid and maintains.

Drawings

Fig. 1 is a plan view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an enlarged view of the position a of the present invention.

Fig. 4 is an enlarged view of the position B of the present invention.

Reference numerals in the drawings of the specification include:

the water-saving and pollution-preventing road comprises a road surface 1, a drainage ditch cover plate 2, a sand-sinking well body 3, a sand-sinking well cover 4, a water inlet 5, a water outlet 6, greening 7, an outer well body 8, a waterproof layer 9, plain concrete 10, a gravel cushion layer 11, a pollution-preventing grid 12, a filter medium 13, permeable geotextile 14, planting soil 16, a well cover handle 17, bolts 18, angle steel 19, a stainless steel plate 20, a pollution-preventing filter device 21 and a filter screen 22.

Detailed Description

The following is further detailed by way of specific embodiments:

the embodiment is an infiltration and sewage interception type rainwater desilting device as shown in figures 1, 2, 3 and 4, which comprises a water inlet well and a desilting structure, wherein the water inlet well comprises a water inlet well, the desilting structure comprises a desilting well, the bottom of the water inlet well is connected with the desilting well through a water inlet 5, plain concrete 10 and a gravel cushion 11 are arranged below the water inlet well as a foundation, and the water inlet well and the desilting well are surrounded by an outer well body 8.

The top of the sand sediment trap is installed and is sunk well lid 4, has the recess that is used for filling planting soil 16 on the sunk well lid 4, and it has planting soil 16 to fill in the recess, and the planting soil 16 that fill covers the upper surface and is a little higher than road surface 1, and with afforestation 7 same height, and the surface of sunk well lid 4 is close to delivery port 6 one side and installs well lid handle 17. A water outlet 6 is arranged on the wall of the sand sediment trap at the same elevation opposite to the water inlet 5, and a sewage interception grille 12 is arranged in the water outlet 6; in the sand sediment well, a sand sediment part is arranged below the level of the water inlet 5, a sewage interception filtering device 21 is arranged in the sand sediment part, and the sewage interception filtering device 21 is a filter screen 22.

And a filter medium 13 is fixed below the sewage interception filter device 21, the filter medium 13 is wrapped by a permeable geotextile 14, and the filter medium 13 is communicated with the outside of the sand sediment trap. Waterproof layers 9 are arranged on the inner sides of the water inlet well and the sand sediment trap. The top end of the sand-settling well body 3 is provided with a bolt 18 at one side far away from the water outlet 6, an angle steel 19 is fixed on the bolt 18, a steel plate is fixed on the angle steel 19, and the steel plate is slightly higher than the drainage ditch cover plate 2.

In this embodiment, the utility model discloses a device arranges between terminal and near rainwater inspection shaft of outdoor drainage ditches such as road side ditch, square catch basin, arranges in being close to road square drainage ditch one side afforestation 7 for the convenient selection of later maintenance management. The depth of the well outside the drainage ditch cover plate 2 covered on the water inlet well in other drainage systems can be flexibly controlled according to the actual requirements on the site.

During rainfall, the upper reaches ground runoff collects the escape canal and gets into the sand sediment trap through water inlet 5, rainwater gets into filter screen 22 preferentially, along with the increase of water yield surface of water rises gradually and begins the overflow discharge to the rainwater of the 6 bottom elevations of delivery port, set up the big particle size suspended solid that intercepts the rainwater effectively in the trash rack 12 of delivery port 6, avoid the low reaches pipeline to take place to block and organic matter gets into and produce black smelly phenomenon, simultaneously, most silt of rainwater through the sand sediment trap subsides in filter screen 22, rainwater in the well chamber slowly infiltrates in the peripheral planting soil under the effect of gravity, can reach the effect of purifying and discharging the rainwater of accumulating in filter screen 22, also can keep outside soil moist, maintain groundwater and soil ecological balance.

Claims

1. Infiltration cuts dirty type rainwater desilting device, including well and desilting structure of intaking, its characterized in that: the sand sediment structure comprises a sand sediment well, the bottom of the water inlet well is provided with a water inlet, and the sand sediment well is communicated with the water inlet well through the water inlet; the top of the sand sediment trap is provided with a sand sediment trap cover; a water outlet communicated with the sand sediment trap is arranged on the wall of the sand sediment trap, the water outlet and the water outlet surface of the water inlet are at the same height, and a sewage interception grid is arranged in the water outlet; a sewage interception filtering device is arranged in the sand sediment trap and is positioned below the water inlet; and a filter medium is fixed below the sewage interception filter device and is communicated with the outside.

2. The infiltration intercepting type rainwater sand settling device according to claim 1, wherein: the sewage interception and filtration device is a filter screen.

3. The infiltration intercepting type rainwater sand settling device according to claim 1, wherein: the filter medium is wrapped by a water permeable geotextile.

4. The infiltration intercepting type rainwater sand settling device according to claim 1, wherein: the waterproof layer is arranged on the inner side of the water inlet well, and the waterproof layer is also arranged on the inner side of the sand sediment trap.

5. The infiltration intercepting type rainwater sand settling device according to claim 1, wherein: the sand sediment trap cover is provided with a groove for filling planting soil.

6. The infiltration intercepting type rainwater sand settling device according to claim 1, wherein: and a manhole cover handle is arranged on one side, close to the water outlet, of the upper surface of the sand sediment trap cover.