CN207727657U - A kind of bottom flood control of slope course and Rainwater collection system - Google Patents

Abstract

The utility model discloses a system for preventing flood at the bottom of a slope road and collecting and utilizing rainwater. Rainwater drainage ditches are arranged at the middle and lower parts of the slope road surface, thereby reducing the amount of rainwater and drainage pressure at the bottom of the slope road surface, and reducing the occurrence of floods at the bottom. risks; the drainage ditch is connected with the sedimentation area through pipelines and water inlet channels, and the sedimentation area is used for layer-by-layer filtration, which has a good purification effect. For the purpose of reuse, and with high safety performance, there is a grille and gravel layer before the fine filter, and there is some sedimentation, which can reduce the filtration pressure of the filter and is not easy to cause blockage; when the rainwater reaches a certain level, the rainwater passes through The overflow hole enters the grass-planting ditch, infiltrates to store and replenish groundwater, so as to maximize the use of rainwater resources. In order to prevent the grass-planting ditch from being too deep, an overflow well is set in the grass-planting ditch and connected to the rainwater pipe network, which is highly safe.

Description

A bottom flood control and rainwater collection and utilization system for slope roads

technical field

The utility model relates to the technical field of rainwater collection and utilization systems, in particular to a bottom flood control and rainwater collection and utilization system for sloped roads, especially combined with the concept of sponge city.

Background technique

With the acceleration of the urbanization process, the area of hard pavement in the city is increasing, the runoff coefficient is also increasing, and the amount of infiltration is decreasing. Today, pollution is getting worse and worse, which is also a waste of water resources. Urban slope roads collect a large amount of rainwater at the bottom during rainy days, and it is easy to form floods; currently, only relying on the urban drainage system for rainwater discharge is likely to cause excessive pressure on the urban drainage pipe network. It also increases the risk of flooding.

Utility model content

The purpose of the utility model is to provide a bottom flood control and rainwater collection and utilization system of a slope road. The utility model is safe in operation, can promote the utilization of rainwater resources, and has high utilization efficiency.

In order to achieve the above object, the utility model adopts the following technical solutions:

A system for flood control and rainwater collection and utilization at the bottom of a slope road, including a drainage ditch arranged horizontally on the slope road, the drainage channel is connected to the water inlet channel through the water inlet pipe, one end of the water inlet channel is connected to a sedimentation area, and a plurality of perforations are arranged at the lower end of the sedimentation area The mud discharge pipe, the sedimentation area is divided into the first sedimentation area, the second sedimentation area and the third sedimentation area from one end connected to the inlet channel to the other end. The first sedimentation area is equipped with a backwash drainage channel. There is a gravel layer between the first sedimentation area and the second sedimentation area, a filter screen is installed between the second sedimentation area and the third sedimentation area, and a lower groove is provided at the end of the third sedimentation area. There is a water outlet hole at the lower end of the side wall of the tank, and an overflow weir wall is provided outside the side wall of the lower groove, and a filter screen is installed horizontally between the side wall of the lower groove and the overflow weir wall, and the top of the filter screen is an overflow weir , there is an outlet channel outside the overflow weir, and the outlet channel is connected to the water storage tank through the outlet pipe. The lower groove at the end of the third section of the sedimentation area and the water storage tank are respectively equipped with a lift pump and a submersible pump. The main pipe is connected to the sprinkler hose arranged along the parallel direction of the grass-planting ditch. The lower end of the grass-planting ditch is provided with a layer of permeable soil and gravel in sequence.

Further, the upper end of the drainage ditch is provided with a grid plate, and the upper end and lower end of the side wall of the drainage ditch are respectively provided with overflow holes and drain holes.

Further, a grid net is provided at the upper end of the overflow well.

Further, the outlet of the backwash drain, the outlet of the backwash drain and the perforated mud discharge pipe are connected to the overflow well of the grass planting ditch through the main drainage pipe.

Further, a V-shaped groove is provided at the end of the sedimentation area connected to the water inlet, and a water distribution hole is provided on the side wall of the V-shaped groove. The water distribution hole is set at the upper end of the sedimentation area and communicates with the interior of the sedimentation area. The overflow drain hole is connected to the grass planting ditch through the overflow pipe.

Further, it also includes a backwash main pipe for system cleaning. The backwash main pipe is connected with the submersible pump through a three-way pipe. A valve is provided between the three-way pipe and the backwash main pipe. Connected and equipped with a gate valve.

Further, the backwash main pipe is connected with a backwash branch pipe, and the backwash branch pipe is arranged on the inner side of the side wall of the lower groove and on the wall above the horizontal screen.

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model is a bottom flood control and rainwater collection and utilization system of a slope road. By setting rainwater drainage ditches in the middle and lower parts of the slope road surface, the amount of rainwater and drainage pressure at the bottom of the slope road surface are reduced, and the risk of flooding at the bottom is reduced. The drainage ditch is connected with the sedimentation area through the pipeline and the water inlet channel, and the sedimentation area is used for layer-by-layer filtration. The purification effect is good, and the filter screen should not be blocked. The filter screen and the horizontal filter set in front of the overflow weir, and after the sedimentation in the three sedimentation areas, the treatment effect is good; the water storage tank and the sedimentation area can be used to store water at the same time, realizing water storage in floods and recovery in droughts For the purpose of utilization, and with high safety performance, there is a grille and gravel layer before the fine filter, and there is some sedimentation, which can reduce the filtration pressure of the filter and is not easy to cause blockage; when the rainwater reaches a certain level, the rainwater passes through the overflow The flow hole enters the grass-planting ditch, infiltrates to store and replenish groundwater, so as to maximize the use of rainwater resources. In order to prevent the grass-planting ditch from being too deep, overflow wells are set in the grass-planting ditch and connected to the rainwater pipe network, which is highly safe.

Further, it also includes a backwash main pipe for system cleaning. The backwash main pipe is connected with the submersible pump through a three-way pipe. A valve is provided between the three-way pipe and the backwash main pipe. It is connected and equipped with a gate valve. The water in the storage tank is used to clean the pool, filter screen and gravel layer in the sedimentation area. When there is a lot of rain, the purpose of self-cleaning is realized, thereby ensuring the cleanliness of the sedimentation area and realizing the regeneration of rainwater resources. use.

Description of drawings

Fig. 1 is the utility model slope road rainwater collection stereogram;

Fig. 2 is a plan view of the utility model;

Fig. 3 is a sectional view of the utility model;

Fig. 4 is the sectional view of the grass planting ditch of the utility model;

Fig. 5 is a detailed diagram of the layout of the backwash pipeline of the utility model.

In the figure: 1. drainage ditch, 2. water inlet pipe, 3. overflow hole, 4. water inlet channel, 5. V-shaped groove, 6. water distribution hole, 7. overflow drain hole, 8. backwash drainage channel, 9 , perforated mud discharge pipe, 10, gravel layer, 11, filter screen, 12, outlet hole, 13, backwash drain, 14, overflow weir, 15, outlet pipe, 16, water storage tank, 17, submersible pump , 18. Valve, 19. Backwash main pipe, 20. Backwash branch pipe, 21. Lift pump, 22. Drainage pipe, 23. Sprinkler irrigation water supply main pipe, 24. Spray irrigation hose, 25. Gravel ditch gravel layer, 26. Planting ditch with permeable soil, 27, overflow well, 28, grille, 29, rainwater drainage pipe, 30, gate valve, 31, overflow pipe.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in Figures 1 to 5, a system for flood control at the bottom of a slope road and rainwater collection and utilization system includes a drainage ditch 1 horizontally arranged on the slope road, the upper end of the drainage ditch 1 is provided with a grid plate, the upper end of the side wall of the drainage ditch 1 and The lower end is respectively provided with an overflow hole 3 and a drain hole, and the drain hole is connected to the water inlet channel 4 through the water inlet pipe 2. One end of the water inlet channel 4 is connected to a sedimentation area, and a plurality of perforated mud discharge pipes 9 are arranged at the lower end of the sedimentation area. From one end connected to the inlet channel 4 to the other end, it is divided into the first section of sedimentation area, the second section of sedimentation area and the third section of sedimentation area. The first section of sedimentation area is equipped with a backwash drainage channel 8, and the first section of sedimentation area A gravel layer 10 is provided between the second sedimentation area and the second sedimentation area, a filter screen 11 is provided between the second sedimentation area and the third sedimentation area, and a lower groove is provided at the end of the third sedimentation area, and the side wall of the lower groove The lower end is provided with a water outlet hole 12, the outer side wall of the lower groove is provided with an overflow weir wall, and a filter screen 11 is arranged horizontally between the side wall of the lower groove and the overflow weir wall, and the upper end of the filter screen 11 is an overflow weir 14. There is an outlet channel outside the overflow weir 14, and the outlet channel is connected to the water storage tank 16 through the outlet pipe 15. The lower groove at the end of the third section of the sedimentation area and the water storage tank 16 are respectively equipped with a lift pump 21 and a submersible pump. 17. The lifting pump 21 is connected to the sprinkler hose 24 arranged along the parallel direction of the grass-planting ditch through the main sprinkler irrigation water supply pipe 23. The lower end of the grass-planting ditch is provided with a water-permeable soil 26 and a grass-planting ditch gravel layer 25 in turn, and an overflow is provided at the lowest position of the grass-planting ditch. Well 27, the upper end of the overflow well 27 is provided with a grille 28, and the overflow well 27 is provided with a rainwater drainage pipe 29, which also includes a backwash main pipe 19 for system cleaning, and the backwash main pipe 19 is connected with a backwash branch pipe 20. The backwash branch pipe 20 is arranged inside the side wall of the lower groove and on the wall above the horizontal filter screen 11. The backwash main pipe 19 communicates with the submersible pump 17 through a three-way pipe. Valve 18, the other end of the tee pipe communicates with the external water pipe and is provided with a gate valve 30 .

The water outlet of the backwash drain 8, the water outlet of the backwash drain 13 and the perforated mud discharge pipe 9 are connected to the overflow well 27 of the grass planting ditch through the main drainage pipe 22, and are discharged by the rainwater drainage pipe 29;

The end of the sedimentation area connected to the water inlet is provided with a V-shaped groove 5, and the side wall of the V-shaped groove 5 is provided with evenly distributed water distribution holes 6. Flow drain hole 7, overflow drain hole 7 is connected to planting ditch by overflow pipe 31.

Below in conjunction with accompanying drawing, structural principle of the present utility model and operation steps are further described:

The rainwater on the slope road first flows into the rainwater drainage ditch 1 with grille, and then flows into the water inlet ditch 4 through the water inlet pipe 2. The rainwater drainage ditch 1 slopes to the side of the water inlet pipe 2. , the rainwater is directly discharged to the grass planting ditch through the overflow port 3, and the rainwater collected by the inlet channel 4 enters the V-shaped groove 5, and the rainwater enters the sedimentation area through the uniform water distribution hole 6 and the V-shaped groove weir at the bottom of the V-shaped groove 5, and passes through After the first settling area, it passes through the vertical gravel layer 10, and then passes through the second settling area and enters the third settling area through the vertical filter screen 11. A lower groove is set at the end of the third settling area, and the rainwater passes through the side wall of the lower groove. After the water outlet hole 12 and the filter screen 11 arranged horizontally, it flows into the outlet channel by the overflow weir 14, and then flows into the water storage tank 16 through the outlet pipe 15 arranged at the bottom of the right side of the outlet channel for storage. The mud pipe 9 discharges the sedimentation impurities; the rainwater is stored in the sedimentation area first, until the storage depth reaches the height of the overflow weir 14, the rainwater flows into the water inlet channel through the overflow weir 14 and enters the water storage tank 16 through the outlet pipe 15, and the sedimentation area The highest water level is stored as the height of the overflow weir 14. This water is used for the spray irrigation of the grass planting ditch. The lift pump 21 is placed in the lower groove, which is easy to absorb water, and is connected with the sprinkler irrigation water supply main pipe 23, and enters along the grass planting ditch. When the water level rises to the height of the overflow hole 7, the rainwater flows out from the overflow hole 7, and is directly discharged into the grass planting ditch through the overflow pipe 31, and the rainwater passes through the permeable soil 26 and the gravel layer 25 successively. Infiltration, when the water level in the grass planting ditch is higher than the overflow well 27, the rainwater enters the overflow well 27 through the grille 28 and is discharged from the bottom rainwater drainage pipe 29; the system needs to be cleaned regularly, and the backwash main pipe 19 is opened during backwashing The valve 18 set on the top closes the gate valve 30 on the reuse pipeline, the stored water in the water storage tank 16 is lifted by the submersible pump 17, and enters the backwash branch pipe 20 from the backwash main pipe 19, and the backwash branch pipe 20 is arranged on the side of the lower groove On the inner side of the wall and on the wall above the horizontal filter screen 11, the backwash water is discharged through the backwash drain 8 and the backwash drain 13, after the drainage of the perforated mud discharge pipe 9, the backwash drain 8, and the backwash drain 13 are combined It is discharged into the overflow well 27 of the planting grass ditch by the main drainage pipe 22, and discharged by the rainwater drainage pipe 29; the rainwater stored in the water storage tank 16 can be treated according to the water quality requirements of the reuse water supply point, and the valve 18 is closed and opened. The gate valve 30 is supplied by the lift pump 17 and can be used for urban greening, road spraying and the like.

Claims (7)

1. a kind of bottom of slope course controls flood and Rainwater collection system, which is characterized in that including being horizontally set at slope The gutter (1) of road, gutter (1) are connected to inlet channel (4) by water inlet pipe (2), and it is heavy that one end of inlet channel (4) is connected with Shallow lake area, settling zone lower end are equipped with multiple perforated sludge discharge pipes (9), in settling zone by be connected to inlet channel (4) one end to the other end according to It is secondary to be divided into first segment settling zone, second segment settling zone and third section settling zone, backwash drainage ditch is equipped in first segment settling zone (8), be equipped with gravel layer (10) between first segment settling zone and second segment settling zone, second segment settling zone and third section settling zone it Between be equipped with strainer (11), third section settling zone end be equipped with lower groove, lower groove side wall lower ends be equipped with water outlet oral pore (12), it is recessed It is equipped with downflow weir wall on the outside of groove sidewall, horizontally disposed strainer (11), strainer are equipped between recessed groove sidewall and downflow weir wall (11) upper end is downflow weir (14), is equipped with outlet canal outside downflow weir (14), outlet canal is connected to water storage by outlet pipe (15) Case (16), the lower groove and water storage box (16) of third section settling zone end are interior to be respectively equipped with elevator pump (21) and immersible pump (17), Elevator pump (21) is connected to the sprinkling irrigation hose (24) arranged along grass planting ditch parallel direction, grass planting ditch by water main (23) of spraying Lower end is equipped with pervious soil (26) and gravel layer (25) successively, and grass planting ditch extreme lower position is equipped with overflow well (27), overflow well (27) rainwater drainage pipe (29) is equipped in.

2. a kind of bottom of slope course according to claim 1 controls flood and Rainwater collection system, which is characterized in that Gutter upper end is equipped with flase floor, and gutter (1) sidewall upper and lower end are respectively equipped with spout hole (3) and connection water inlet pipe (2) Osculum.

3. a kind of bottom of slope course according to claim 1 controls flood and Rainwater collection system, which is characterized in that Overflow well (27) upper end is equipped with grid (28).

4. a kind of bottom of slope course according to claim 1 controls flood and Rainwater collection system, which is characterized in that Drainage ditch (8) water outlet, backwash discharge opening (13) water outlet and perforated sludge discharge pipe (9) is backwashed by main sewer (22) to connect It is connected in the overflow well (27) of grass planting ditch.

5. a kind of bottom of slope course according to claim 1 controls flood and Rainwater collection system, which is characterized in that One end being connect with inlet channel (4) in settling zone and being equipped with V-groove (5), V-groove (5) side wall is equipped with distributing hole (6), and distributing hole (6) is set It is placed in inside settling zone upper end and settling zone and is connected to, settling zone upper end is equipped with Overflow drainage hole (7), and Overflow drainage hole (7) pass through Overflow pipe (31) is connected to grass planting ditch.

6. a kind of bottom of slope course according to claim 1 controls flood and Rainwater collection system, which is characterized in that Further include the backwash main pipe (19) for cleaning systems, backwash main pipe (19) is connected to immersible pump (17) by three-way pipe, Valve (18) is equipped between three-way pipe and backwash main pipe (19), the three-way pipe other end is connected to external water pipe and is equipped with gate valve (30)。

7. a kind of bottom of slope course according to claim 6 controls flood and Rainwater collection system, which is characterized in that Backwash main pipe (19) is connected with backwash branch pipe (20), and backwash branch pipe (20) is arranged in lower groove inside sidewalls and level Above strainer (11) on wall.