CN101812865A - Integrative environmentally-friendly gutter inlet - Google Patents

Abstract

The invention relates to an integrated environmental protection gully, specifically a rainwater collecting and discharging gully which integrates the functions of sand settling, decontamination and deodorization. In the dirt basket under the rainwater grate, part of the large suspended particles and floating objects in the rainwater are intercepted. The rainwater with mud and sand flows through the grit chamber and the sand settles down in a relatively stable state, so as to avoid entering the drainage system with the water flow and blocking the pipes. A vertical anti-odor partition is arranged between the walls, and the lower edge of the anti-odor partition is lower than the inner bottom of the drainage pipe, which can further intercept the floating objects in the rainwater. In addition, there will be a certain water storage volume in the grit chamber, and under the combined action of the deodorizing partition, an deodorizing water seal will be formed to prevent the odor in the pipeline from overflowing from the rainwater grate. The invention integrates the functions of sand setting, decontamination and deodorization, and has the advantages of simple structure, low cost and convenient manufacture and installation.

Description

An integrated environmental protection rainwater outlet

technical field

The invention relates to an environment-friendly gully for discharging or collecting rainwater on roads, in particular to a rainwater collecting and discharging gully which integrates the functions of sand settling, decontamination and deodorization, and belongs to the fields of municipal engineering and environmental engineering.

Background technique

The gully is the entrance of surface runoff rainwater into the stormwater pipe network. Traditional gullies collect ground rainwater and discharge it directly into downstream pipes. Studies have shown that during the rainfall process, the rainwater and the runoff formed flow through the urban roof and ground, washing and accumulating a series of pollutants, resulting in high pollutant content in the rainwater, large changes, and complex components, and the rainwater does not undergo any treatment. , direct discharge of water bodies will cause serious pollution to urban water bodies. At the same time, the long-term accumulated rainwater in rainwater pipes will deteriorate and stink, and the odor will easily overflow from the rainwater outlet, affecting the working or living environment of surrounding residents. It is precisely because of these characteristics of rainwater runoff that two problems often occur in underground rainwater pipelines: 1. After the rainwater carries a large amount of pollutants through the stormwater outlet, it flows directly into the rainwater branch pipe, rainwater main pipe or confluence pipe through the connecting pipe. A large amount of sediment is easy to be produced in the pipeline, and some of these sediment pollutants will be removed during the maintenance of the rainwater pipeline, but most of them will eventually be discharged into urban water bodies such as rivers during heavy rains, directly causing pollution; 2. Deposition in the rainwater pipeline Pollutants will emit odor after a certain period of time, affecting the lives of residents and pedestrians.

At present, for general rainwater outlets, only the rainwater grate above can intercept larger pollutants such as leaves and plastic bags, and there is no purification measure for rainwater. At present, existing technologies, such as the disclosed invention patent environmental protection type rainwater outlet (publication number: CN101265722), utility model patent environmental protection type rainwater outlet filter bucket (publication number: CN201202174) etc., adopt to set up filter bucket under the rainwater grate The way to further intercept larger solid pollutants in rainwater, but it has almost no interception and disposal effect on suspended solids and other pollutants. For the prevention and control of odor in the rainwater pipe, it is also one of the main factors in the design of the gully. The disclosed invention patent gully waste interception and deodorization device (public number: CN101538892) adopts a water-filled curved anti-odor water seal or a self-balancing flap water The seal confines the odor in the well room of the rainwater well, prevents the odor from overflowing and keeps the external air clean.

These gullies are either complex in structure, have little effect on rainwater purification and the rainwater structures are expensive, or have high technical content and are difficult to promote and popularize. Therefore be necessary to develop a kind of simple in structure, the multifunctional gully with low cost.

Contents of the invention

The object of the present invention is to provide an environment-friendly gully which integrates the functions of sand settling, decontamination and deodorization.

For realizing above-mentioned purpose of the invention, the technical scheme that the present invention adopts is as follows:

The invention includes a rainwater grate and a lower structure. The rainwater grate is cast iron or plastic rainwater grate. A dirt basket is installed under the rainwater grate. Longitudinal strip-shaped water filter holes are arranged on the side wall, and the width of the holes is 5-10mm. The bottom of the dirt basket is closed, and the bottom of the water filter hole has a certain height from the bottom, so that the bottom of the dirt basket has a certain storage volume. The width of the water filter hole on the side wall gradually increases from bottom to top. After the rainwater enters the dirt basket, it enters the stormwater outlet through the filter hole, and the pollutants in the water larger than the width of the filter hole will be intercepted in the dirt basket, and at the same time, some heavier solid pollutants in the water will be deposited at the bottom of the basket; the lower structure The internal space of the building is divided into two parts by the anti-odor partition between the walls. The left space is connected to the rainwater inlet, and the right space is connected to the rainwater drainage pipe. There is a grit bucket at the bottom of the rainwater outlet. The top of the grit bucket is flat or slightly lower than the inner bottom of the drainage pipe. The four walls of the grit bucket are inclined with an inclination angle greater than 45°, which is convenient for the settlement of solid particles and can play a role in diversion. When a certain amount of mud and sand is accumulated in it, it is removed manually. The drainage pipe is placed on the upper edge of the grit chamber, and the rainwater is discharged into the rainwater pipe network through the drainage pipe. The lower edge of the above-mentioned anti-odor partition is lower than the elevation of the inner bottom of the drain pipe, and a certain volume of rainwater will be accumulated in the grit chamber. Under the combined action of the anti-odor partition, an anti-odor water seal is formed to prevent the odor in the pipeline from coming out of the rainwater grate. Spill. The lower part of the grit bucket is the bottom plate. The wall and the bottom plate are formed by brickwork or concrete pouring at one time.

This technical solution is not only suitable for the ground rainwater outlets of the residential area, but also suitable for the rainwater outlets of urban roads. It can not only intercept large pollutants, suspended solids, floating objects and mud and sand in the rainwater, but also prevent the odor from overflowing in the rainwater pipes, reducing the Environmental pollution caused by rainwater.

The rainwater outlet of the present invention integrates the functions of sand settling, decontamination and deodorization, which not only intercepts a large amount of pollutants in rainwater, prevents the hidden danger of odor overflow, but also ensures the smooth collection and discharge of rainwater, and has a simple structure and low cost. It is cheap, easy to manufacture and install, and therefore has wide promotion and application prospects.

Description of drawings

Figure 1 is a schematic diagram of the structure of an integrated environmental protection rainwater outlet.

Among them, 1—rainwater grate, 2—hook, 3—dirt basket, 4—odor proof partition, 5—grit bucket, 6—drainage pipe, 7—wall, 8—bottom plate.

Detailed ways:

As shown in Figure 1, the present invention mainly is made up of rainwater grate 1, hook 2, dirt basket 3, deodorizing dividing plate 4, settling bucket 5, drainpipe 6, wall wall 7, base plate 8. The rainwater grate 1 is made of cast iron or plastic material, and a dirt basket 3 is installed below the rainwater grate 1, and the dirt basket 3 is hung on the lower part of the rainwater grate 1 by a hook 2 positioned at the top of the wall 7, and the dirt basket 3 is A grid type basket with an upper end opening and a closed bottom, the grid type water filter holes on the side walls around the dirt basket 3 have a pore width of 5-10 mm, and the pore width gradually increases from bottom to top. The bottom of the water filter hole has a certain height (5-10cm) to the bottom of the dirt basket, so that the bottom of the dirt basket 3 has a certain storage volume. After rainwater enters the dirt basket, it enters the inside of the rainwater outlet through the filter hole, and the pollutants greater than the width of the filter hole in the water will be intercepted in the dirt basket 3. Meanwhile, some heavier solid pollutants in the water are deposited at the bottom of the basket. There is a drainpipe 6 on one side of the wall 7, and the drainpipe 6 is connected to the rainwater pipe network; on the wall 7 on the side where the drainpipe 6 is opened, an anti-odor partition 4 is arranged, and the height of the lower edge of the anti-odor partition 4 is lower than that of the drainage pipe. Pipe 6 pipe inner bottom height, deodorant dividing plate 4 divides the interior space that wall wall 7 forms into two parts, and one side space links to each other with the rainwater inlet that is provided with rainwater grate 1, and the other side space communicates with drainpipe 6. The grit chamber 5 is set at the bottom of the rainwater outlet, the top of the grit chamber 5 is equal to or lower than the inner bottom of the drain pipe 6, and the walls of the grit chamber 5 are inclined with an inclination angle greater than 45° to facilitate the settlement of solid particles It can also play a guiding role. The lower part of the grit bucket 5 is a bottom plate 8 . The wall 7 and the bottom plate 8 are formed by brickwork or concrete pouring at one time.

During rainy days, rainwater flows in through the rainwater grate 1 of the rainwater inlet, and through the dirt basket 3 suspended under the rainwater grate 1, part of the suspended matter and floating matter in the rainwater are intercepted. The dirt basket 3 is hung on the top of the wall plate 7 by the hook 2, so as to facilitate disassembly and manual maintenance. The rainwater flows through the grit chamber 5, and the mud and sand in the rainwater settle down in a relatively stable state, so as to avoid entering the drainage system with the water flow and blocking the pipeline. Finally, the rainwater enters the rainwater pipe network through the drain pipe 6 . Between wall 7, be provided with deodorant dividing plate 4, the lower edge elevation of deodorizing dividing plate 4 is lower than the inner bottom elevation of drainage pipe 6 pipes, can further intercept the floating matter in rainwater. In addition, a certain volume of rainwater will be accumulated in the grit chamber 5, which together with the deodorizing partition 4 forms a deodorizing water seal to prevent the odor in the pipeline from overflowing from the rainwater grate. The bottom of the grit chamber 5 is a base plate 8 . Wall wall 7 and base plate 8 can adopt brickwork or concrete pouring one-time forming.

Claims (6)

1. an integrated environmental protection rainwater outlet, comprising rainwater grate (1) and lower structure, it is characterized in that, described lower structure is by dirt basket (3), deodorizing dividing plate (4), settling bucket (5), Drainpipe (6), wall (7), bottom plate (8) is formed, and described dirt basket (3) is positioned at rainwater grate (1) side; One side of described wall (7) has drainpipe (6 ), the drainpipe (6) is connected to the rainwater pipe network; on the wall (7) on the side where the drainpipe (6) is opened, a deodorizing partition (4) is provided, and the height of the lower edge of the deodorizing partition (4) is lower than that of the drainage The height of the inner bottom of the pipe (6), the anti-odor partition (4) divides the internal space formed by the wall (7) into two parts, the space on one side is connected with the rainwater inlet provided with the rainwater grate (1), and the space on the other side is the same as The drainage pipes (6) are connected; the bottom of the rainwater outlet is provided with a grit chamber (5), and the top of the grit chamber (5) is equal to or lower than the inner bottom of the drainpipe (6); Bucket (5) bottom is base plate (8). 2. An integrated environment-friendly gully according to claim 1, characterized in that, the dirt basket (3) is hung by the hook (2) on the upper part of the wall (7). At the rainwater grate (1) bottom. 3. An integrated environment-friendly gully according to claim 1, characterized in that, the longitudinal section of the grit chamber (5) is trapezoidal, and the four walls are inclined at an inclination angle of 45°-60°. 4. A kind of integrated environment-friendly rainwater outlet according to claim 1, characterized in that, said dirt basket (3) is a grid-type casing with an open upper end and a closed bottom, and said dirt basket ( 3) The pore width of the grid type water filter holes on the surrounding side walls is 5-10mm. 5. An integrated environment-friendly rainwater outlet according to claim 4, characterized in that the pore width of the filter holes on the side wall of the dirt basket (3) gradually increases from bottom to top. 6. An integrated environment-friendly gully according to claim 1, 2, 3, 4 or 5, characterized in that the wall (7) and the bottom plate (8) are formed by brickwork or concrete pouring at one time .