CN205637036U - Urban street rainwater is collected to abandon to flow through and is strained storage leakage system - Google Patents

Abstract

The utility model discloses a system for collecting, discarding, filtering, storing and leaking rainwater in urban streets, which comprises a collection device, a discarding device, filtering and purification equipment and a storing and leaking device. It is connected with municipal drainage channels, municipal sewage pipes and filtration and purification equipment, and the filtration and purification equipment is set on the storage leakage device or independently installed underground and connected to the storage leakage device through pipelines. According to the initial rainwater abandonment value planned by each city, this system can accurately realize the functions of rainwater collection-precise abandonment-filtering-storage-seepage under any rainfall situation, and can effectively ensure the safety of flood discharge and reliable structure , easy to maintain, and improve the ecological environment in the region.

Description

A city street rainwater collection waste stream filtration storage seepage system

technical field

The utility model relates to a rainwater treatment system, in particular to a system for collecting, discarding, filtering, storing, and leaking rainwater in urban streets used in the construction of sponge cities.

Background technique

In the past, the idea of urban construction to solve the problem of rainwater drainage was to quickly discharge block, collect it through the ground stormwater outlet, drain it into the municipal rainwater pipe network system, and finally divert it to natural waters. This treatment method does not consider the collection and reuse of rainwater, which wastes natural resources, and does not set up storage and purification facilities. In the heavy rainfall environment, the garbage and sundries involved in the pipeline system by rainwater not only easily block the pipeline, It will also cause environmental pollution to natural waters.

In order to solve the above problems, the country has proposed the concept of "sponge city", which is a new concept of stormwater management designed for modern cities, so that urban infrastructure can adapt to environmental changes, be able to elastically respond to the impact of rainwater, and absorb water during rainfall , water storage, water seepage, water purification, and release and use the stored and treated rainwater when necessary.

The idea of storing and utilizing rainwater in the prior art is to store it in a large storage tank, and then transport it through pipelines or transfer it with mobile tools when needed. The maintenance cost of such a large storage tank is high, and the rainwater volatilization and transportation The degree of waste such as consumption is serious, and the real energy saving and environmental protection and the full utilization of resources have not been achieved.

Utility model content

The purpose of this utility model is to provide a system for collecting, discarding, filtering, storing, and storing rainwater in urban streets. The purpose of this utility model is achieved through the following technical solutions:

A city street rainwater collection waste flow filtration storage leakage system, including a collection device, a waste flow device, filtering and purification equipment and a storage leakage device, the collection device is connected to the waste flow device through a pipeline, and the waste flow device is connected to a municipal drainage channel, The municipal sewage pipeline is connected with the filtration and purification equipment, and the filtration and purification equipment is set on the storage leakage device or independently installed underground and connected to the storage leakage device through the pipeline.

As an option, the collection device includes a water inlet arranged on the road surface, the water inlet is flush with the road surface and is provided with a grid cover plate, and a sedimentation chamber is arranged below the water inlet, and the sedimentation chamber is connected with the filter chamber through a water diversion pipe, and the upper part of the filter chamber The side wall is connected to the water diversion pipe, and the tail is connected to the drain pipe. There is a movable cover on the top of the filter chamber, and a filter hanging basket is installed in the filter chamber. There is a certain distance between the edge of the filter hanging basket and the side wall of the filter chamber and the drain pipe. .

As an option, sedimentation blocks are arranged at the bottom of the water diversion pipe, and a fence is vertically arranged above the water diversion pipe, which is flush with the edge of the grille cover plate. There is a certain distance between them, the tail end of the sedimentation block protrudes from the edge of the side wall of the filter chamber where it is located, and the side wall opposite to the sedimentation block is provided with a suspension block. One end of the filter hanging basket is set on the suspension block, and the other end is set on the sedimentation block. tail end.

As an option, the discarding device includes a water inlet of the discarding device arranged on the upper part of the device and a collection port in the middle of the device, the water inlet of the discarding device is connected to the tail end of the drain pipe of the collecting device through a pipeline, and the bottom of the discarding device is vertical A baffle is provided, and the chamber formed by the baffle and the side wall where the collecting port is located is divided into an upper chamber and a lower chamber by a partition, a leak hole is arranged on the partition, and a waste flow is arranged horizontally at the lower part of the baffle The flow-discarding plate divides the cavity formed by the flow-baffle plate and the opposite side wall of the collecting port into a flow-accumulating chamber located above and a flow-discarding chamber located below. There is a liquid leakage port through the accumulator chamber and the lower chamber, and a liquid discharge port through the lower chamber and the discarding chamber, and the area of the liquid leakage port is equal to that of the liquid discharge port.

As an option, a valve device for controlling the opening and closing of the discarding port and the leakage hole is provided in the discarding device, and the valve device is a first float valve for controlling the opening and closing of the leaking hole and a valve device for controlling the opening and closing of the discarding port. For the second float valve, there is a magnetic suction valve under the jettison outlet, and a flood discharge port is set in the upper part of the jettison device. The bottom of the flood vent is higher than the top of the collection port. The pipelines are connected, a one-way flow-limiting valve is arranged on the discarding pipe, a filter protection basket is arranged under the water inlet of the discarding device, a filter screen is arranged on the collecting port, and the top of the baffle in the discarding device is collected by the discarding device. There is a drainage tube between the side walls where the mouth is located, and a detachable baffle is set on the water inlet of the upper chamber. restrictor valve.

As an option, the filtration and purification equipment is a filter well arranged on the storage filter device, and a reverse filter device is arranged in the filter well, and the reverse filter device includes a flange baffle and an annular inner wall arranged below the water inlet of the filter well , the opening below the chamber surrounded by the flange baffle and the annular inner wall is the filter inlet, the combined filter device is arranged above the filter inlet, and the collection pipe of the filter well is located above the combined filter device, and the combined filter device includes a frame and The filter module has several layers of filter grids inside the frame, and the filter modules are set in the filter grid. The size and size of the filter modules are equal and can be replaced with each other. There is a filter core in the filter module. The filter core is made of quartz sand, Activated carbon, filter screen or filter cloth.

As an option, the bottom of the filter well is provided with a sewage outlet and a sewage channel, the area of the sewage outlet is smaller than the area of the water inlet of the filter well, a filter well float valve is arranged above the sewage outlet, and a one-way valve is provided on the sewage channel, and the float valve includes Filter well ball plug, filter well connecting rod and filter well float, the filter well ball plug is provided with a through groove, the filter well float is arranged between the annular inner wall and the filter well wall, and the upper and lower sides of the filter well float are set limited bit board.

As an option, the storage leakage device is an integrated tank for rainwater filtering and storage leakage, the tank body is a double-wall structure, the chamber surrounded by the inner wall forms a water storage chamber, the water storage chamber communicates with the collection pipe of the filter well, and the water storage chamber The chamber between the inner wall and the outer wall constitutes a leakage chamber, the lower part of the outer wall is provided with a leakage hole, the upper part of the inner wall is provided with an overflow hole connecting the water storage chamber and the leakage chamber, and support ribs are provided at intervals in the leakage chamber.

As an option, a diversion hole is provided on the support rib, a one-way valve is provided on the overflow hole, an inspection hole is provided on the top of the tank body, and a support seat is provided on the bottom of the tank body.

As an option, the seepage tank is set in the infrastructure pit below the road surface, and the wall and bottom of the infrastructure pit are paved with seepage geotextiles. It is arranged above the reinforcement layer, and the stagnant seepage layer is composed of sand and gravel with a size of 1mm-10mm.

The structural features and effects of each device in the utility model are as follows:

1. This system integrates the functions of pre-collection and pre-treatment of rainwater, discarded flow diversion, filtration and purification, and storage and leakage. After rainfall, rainwater enters the collection device, and after sedimentation and filtration, it enters the abandonment device, and the rainwater polluted in the early stage is discarded. , Cleaner rainwater enters the filtration and purification equipment along with the pipeline, and the filtered and purified rainwater enters the storage leakage device for storage, and directly infiltrates from the tank to the underground soil, with high leakage efficiency, no evaporation, transfer, and pipeline loss.

2. In the collection device, the deposition chamber is located before the water inlet. Before the rainwater on the road flows into the water inlet after the rainfall, it must pass through the sedimentation chamber first, so that the sediment mixed in the rainwater enters the deposition chamber for deposition. At the same time, the water inlet A filter baffle is installed to intercept the floating objects and large garbage in the water outside the water inlet. When the rainwater enters the filter cavity, the filter hanging basket filters the finer impurities that have not been intercepted by the filter baffle again. Through the above structure It is set so that the rainwater entering the collection pipe is fully filtered and pretreated, which improves the cleanliness of the rainwater in the pipe. The width of the water inlet is smaller than the width of the inlet of the sedimentation chamber, and the rainwater located in front of the water inlet side must first flow through the sedimentation chamber to prevent undeposited rainwater from directly entering the water inlet and improve the deposition efficiency. The bottom of the deposition chamber is provided with a water seepage port, and when the rain stops, the remaining rainwater in the deposition chamber can seep into the soil around the set position through the water seepage port to supplement the groundwater.

3. The sedimentation chamber is set on the edge of the road surface. The maintenance personnel can see the deposition of sediment in the sedimentation tank under the movable fence partition from the outside of the pipeline. There is an L-shaped buffer block on the edge of the road surface, and the movable fence partition is set on the L-shaped buffer block. It can withstand the pressure of vehicles and pedestrians passing by, reduce the collision and wear between the movable cover plate and the ground installation part, and improve the service life of the device. The active hinge forms an active connection, and the interior of the deposition chamber can be cleaned by directly lifting the movable fence partition. Cement pads are installed under the buffer block and filter baffle to ensure stability.

4. The filter baffle adopts a slanted design similar to louver leaves, which is inclined upward along the direction of rainwater entering the water, so that floating objects and large garbage are kept outside the slanted plate, and rainwater can enter the water diversion pipe from the gap between the baffles. There is a certain distance between the edge of the filter hanging basket and the wall of the filter cavity, so that the filtered rainwater can pass through the filter hanging basket and enter the drain pipe relatively quickly.

5. In the waste flow device, through the combined setting of the first float valve, the second float valve and the magnetic suction valve, the automatic control valve opening and closing of the liquid level is realized, so as to realize the automatic waste flow and collection of rainwater, which can be adjusted according to the early stage of the city. The rainwater abandonment flow rate is set by setting the volume of each chamber in the abandonment device, the buoyancy value of the first and second float valves, and the opening and closing threshold of the magnetic suction valve to realize accurate abandonment, so that the abandonment device can be more quickly after the abandonment is completed. Harvest rainwater efficiently and avoid wasting natural resources.

6. The water inlet of the upper chamber is equipped with detachable retaining strips. The maximum storage flow of the upper chamber can be adjusted by adjusting the number of retaining strips, so as to control the total discharge flow of the device. The more the number of retaining strips, the maximum storage flow of the upper chamber The larger the value, the greater the amount of water that enters the lower chamber at one time, and the fewer the times of discarded flow required to close the solenoid valve, so as to achieve the purpose of controlling the total amount of discarded flow, so as to meet the different needs of different cities for discarded flow.

7. When encountering heavy rainfall, the rainwater quickly fills the storage chamber, and the water pressure is too high to cause the magnetic suction valve to fail to close, resulting in the device always being in a state of discarding flow and unable to collect rainwater. Therefore, a drainage tube is provided between the top of the baffle plate and the side wall where the collecting port of the flow discarding device is located. When the above situation occurs, the water level higher than the discarding plate is directly discharged from the drainage pipe into the lower chamber, so that the second float valve quickly closes the discarding outlet, the guiding device enters the rainwater collection state, and the rainwater after the discarding flow enters the filtration and purification equipment . In order to avoid pipeline backflow, the rainwater exceeding the collection port is discharged into the municipal drainage pipeline from the flood discharge port.

8. In the combined filtration device set by the reverse filtration equipment in the filtration and purification equipment, each filtration module adopts a standardized design, is equal in size and size, and can be replaced with each other. The number of filtration modules can be adjusted according to the filtration requirements. The filtration direction is set to the pre-filter module, the mid-stage filter module and the post-filter module. The pre-filter module can use quartz sand with a low number to filter the large particles of impurities in the rainwater. The mid-stage filter module can use quartz sand with a high mesh number. Sand, to filter impurities again. The later stage filter module can use activated carbon to absorb fine particles in rainwater. Through the above-mentioned multi-layer filter design, rainwater can be effectively filtered and purified. A one-way valve is set on the sewage channel. Prevent the sewage in the municipal sewage channel from entering the filter well through the sewage pipe.

9. The filtered rainwater enters the water storage chamber from the water inlet and accumulates. When the liquid level is higher than the overflow hole, it flows into the leakage chamber. The rainwater in the leakage chamber flows freely through the water diversion hole, and the rainwater seeps into the periphery of the tank from the leakage hole. Soil gravel layer, rainwater infiltrates the soil. When the soil around the tank seeps, the groundwater level continues to rise, and the water level in the seepage chamber and the water storage chamber rise at the same time. When the water level rises until the water storage chamber is full, the water inlet will no longer enter, and the excess rainwater will follow Municipal pipeline for discharge.

10. Considering that the storage leakage device is installed underground, the tank body is likely to be deformed and damaged under the action of soil pressure and the internal pressure of rainwater accumulated in the cavity. Therefore, support ribs are arranged at intervals in the leakage cavity to improve the tank body Bearing capacity and safety performance, at the same time, water diversion holes are set on the supporting ribs, so that the entire leakage cavity is connected, and the rainwater flows evenly in the leakage cavity, avoiding the deformation of the tank caused by the long-term accumulation of rainwater in a certain place.

11. In the rainwater collection system used in the prior art, due to the long physical distance of pipeline transportation and the difference in the filtration performance of each collection port, it may cause the rainwater that has been pre-filtered by the collection port to enter the pipeline. During the transportation process, it is polluted twice by the rainwater that has not been fully pretreated. Therefore, in this system, after the rainwater is collected, it is pretreated on the spot and discarded. The relatively clean rainwater after the discarded flow is introduced into the filtration and purification equipment and Storage seepage device. When the storage seepage device cannot be installed underground due to construction or geological reasons near the collection port, the collection-abandonment device installed in various places is connected through pipelines, and the rainwater is uniformly collected to the centralized storage at a long distance. The seepage device forms a large-scale rainwater collection-disposal-filter-storage network system.

Work process of the present utility model is as follows:

1. Rainwater flows into the sedimentation chamber from the road surface. When the sedimentation chamber is full, the rainwater flows through the sedimentation chamber and enters the water inlet. The sediment in the rainwater falls into the sedimentation tank for deposition, and the floating objects and large garbage are intercepted by the filter baffle.

2. After the rainwater enters the filter chamber through the water diversion pipe, it is filtered again by the filter hanging basket, and the rainwater after the above-mentioned filtration treatment finally enters the flow discarding device through the pipe.

3. In the initial state, the magnetic suction valve is closed. When the rainwater enters the device from the water inlet of the waste flow device, it accumulates in the storage chamber, and a small part of the rainwater enters the lower chamber through the liquid leakage port, and then enters through the liquid discharge port. The drain chamber is drained through the drain tube.

4. The liquid level continues to rise, so that the first float valve closes the leakage hole. When the liquid level exceeds the top of the baffle, it enters the upper chamber and starts to store water.

5. When the liquid level rises to the preset value of the magnetic suction valve, the magnetic suction valve opens, and the liquid level in the accumulator chamber is quickly discharged through the discharge port. When the liquid level drops, the first float valve opens the leak hole, and the rainwater accumulated in the upper chamber After entering the lower chamber, the liquid level in the accumulator chamber is almost emptied, the magnetic suction valve is closed, and the accumulator chamber starts to store water again.

6. After step 5 is repeated N times, the discharged rainwater has reached the city’s preset initial rainwater abandonment flow requirements, and subsequent clean rainwater can be collected. At this time, the rainwater in the lower chamber is accumulated to the closing preset value of the second float valve. The second float valve closes the discharge outlet, the magnetic suction valve is closed at the same time, the entire liquid level begins to rise continuously, and the rainwater enters the rainwater collection pipeline from the collection port.

7. When encountering heavy rainfall, the rainwater quickly fills the storage chamber, and the water pressure is too high to cause the magnetic suction valve to fail to close, resulting in the device always being in a state of discarding flow and unable to collect rainwater. Therefore, a drainage tube is provided between the top of the baffle plate and the side wall where the collecting port of the flow discarding device is located. When the above situation occurs, the water level higher than the discarding plate is directly discharged from the drainage pipe into the lower chamber, so that the second float valve quickly closes the discarding outlet, and the guiding device enters the rainwater collection state, and the relatively clean rainwater is collected by the discarding device The mouth enters the pipeline and is transported to the filtration and purification equipment. In order to avoid pipeline backflow, the rainwater exceeding the collection port is discharged into the municipal drainage pipeline from the flood discharge port.

8. After the rainwater enters the filter well, it enters the bottom of the filter well through the space between the annular inner wall and the filter well wall. Part of the rainwater is discharged through the sewage outlet, and at the same time, some impurities remaining at the bottom after the previous filtration are flushed from the sewage outlet. Go, because the area of the sewage outlet is smaller than that of the liquid guide port, the rainwater accumulates at the bottom. When the liquid level is accumulated to a certain position, the third floating ball is lifted, and the third ball plug closes the sewage outlet to further increase the liquid level accumulation speed.

9. The accumulated rainwater enters the reverse filter equipment from the filter inlet, and the rainwater after the impurities are filtered enters the water storage chamber of the tank through the rainwater collection pipe for collection. When the rainwater in the water storage chamber of the tank is accumulated to a certain extent, it passes through the overflow hole Enter the seepage cavity and extend into the stagnant seepage layer through the seepage hole to increase the groundwater level.

10. When the rainfall stops, the overall liquid level continues to drop as the discharge port continues to discharge the rainwater. First, the liquid level in the accumulator chamber is discharged, and the rainwater in the lower chamber is also drained. The second float valve is opened, and the whole The device returns to the initial state, waiting for the next rain to abandon the flow. It takes about 30 minutes for the liquid level in the whole device to be completely drained. In the occasions where there are many showers in summer and the rain gap is short, when the next rainfall comes, the device is still in a slow drainage state, and the liquid level can return to the collection level after the rain flow is replenished. Collecting at the mouth position, so that this part of the relatively clean rainwater will not be discarded, and the rainwater can be collected and utilized to the maximum extent.

The number of repetitions N in step 6 depends on the value of the abandoned flow of rainwater in the initial stage of the city, which can be obtained from the urban planning and construction plan. After conversion with the internal structure specifications of the device, the flow that needs to be abandoned is V, and the flow storage chamber is the largest at a time. The storage flow rate is V1, the maximum storage flow rate in the upper chamber is V2, and the flow rate in the lower chamber is V3 when the second float valve closes and discards the outlet. all.

To sum up, according to the initial rainwater abandonment value planned by each city, this system can accurately realize the functions of rainwater collection-precise abandonment-filtering-storage-seepage under any rainfall situation, and can effectively ensure that the operation The flood is safe, the structure is reliable, the maintenance is convenient, and the ecological environment in the area is improved.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the system;

Fig. 2 is the cross-sectional schematic diagram of collecting device;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is the structural representation of abandoning flow device;

Fig. 5 is the enlarged schematic diagram of place A in Fig. 4;

Fig. 6 is the enlarged schematic view of place B in Fig. 4;

Fig. 7-Fig. 11 are schematic diagrams of the working principle of the jettisoning device;

Fig. 12 is the storage leakage device and the filtration and purification equipment arranged above it;

Figure 13-Figure 14 is a schematic diagram of the filter well structure;

Figure 15-Figure 17 is a schematic diagram of the tank structure and implementation;

In the figure, 1 is the roadside, 2 is the water diversion pipe, 3 is the sedimentation chamber, 4 is the water inlet and filter baffle of the collection device, 5 is the movable fence partition, 6 is the seepage port, 7 is the L-shaped buffer block, and 8 is the Cement pad, 9 is the road surface, 10 is the movable cover plate, 11 is the filter cavity, 12 is the support block, 13 is the filter hanging basket, 14 is the drainage pipe, 15 is the water inlet of the waste flow device, 16 is the inspection port, 17 is Filter hanging basket, 18 is the collection port of the discarding device, 19 is the filter screen, 20 is the flood outlet, 21 is the baffle, 22 is the upper chamber, 23 is the leakage hole, 24 is the first float valve, 25 is the flow storage chamber, 26 is the lower chamber, 27 is the second float valve, 28 is the magnetic suction valve, 29 is the jettison port, 30 is the jettison cavity, 31 is the jettison tube, 32 is the flow limiting valve of the jettison device, and 33 is Leakage port, 34 is a liquid discharge port, 35 is a waste plate, 36 is a drainage pipe, 37 is a partition, 38 is a retaining bar, 39 is a filter well, 40 is a flood outlet of a filter well, 41 is a maintenance hole of a filter well, 42 is the water inlet of the filter well, 43 is the sewage channel of the filter well, 44 is the one-way valve of the filter well, 45 is the annular inner wall, 46 is the flange baffle, 47 is the collection pipe of the filter well, 48 is the limit plate, and 49 is the filter Well float, 50 is a filter well connecting rod, 51 is a combined filter device, 52 is a through groove, 53 is a filter well ball plug, 54 is a sewage outlet, 55 is a frame, 56 is a filter grid, 57 is a post-filter module, 58 is the medium-term filtration module, 59 is the early-stage filtration module, 60 is the tank body, 61 is the outer wall of the tank, 62 is the inner wall of the tank, 63 is the leakage cavity, 64 is the support rib, 65 is the inspection hole of the tank body, and 66 is the Water storage chamber, 67 is a support seat, 68 is a diversion hole, 69 is an overflow hole, 70 is a road surface, 71 is a seepage geotextile, 72 is a stagnation seepage layer, 73 is a reinforcement layer, and 74 is a seepage hole.

detailed description

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

A city street rainwater collection waste flow filtration storage leakage system, including a collection device, a waste flow device, filtering and purification equipment and a storage leakage device, the collection device is connected to the waste flow device through a pipeline, and the waste flow device is connected to a municipal drainage channel, The municipal sewage pipeline is connected with the filtration and purification equipment, and the filtration and purification equipment is set on the storage leakage device or independently installed underground and connected to the storage leakage device through the pipeline.

The collection device includes a water inlet vertically arranged below the roadside 1 and a sedimentation chamber 3 arranged on the road surface close to the water inlet. The water inlet is connected to the filter chamber 11 through the water diversion pipe 2, and the top of the filter chamber 11 is provided with a movable cover. The plate 10 is provided with a drain pipe 14 at the bottom of the filter chamber 11 , and a filter device is provided in the filter chamber 11 .

The bottom of the water inlet is lower than the road surface 9, and the width of the water inlet is smaller than the width of the entrance of the sedimentation chamber 3. The water inlet is vertically provided with a filter baffle 4, and the bottom of the sedimentation chamber 3 is provided with a water seepage port 6. The filter device is a filter hanging basket 13. The top of the hanging basket 13 is lower than the bottom of the water outlet position of the water diversion pipe 2 , the filter cavity wall is provided with a support block 12 , and the filter hanging basket 13 is arranged on the support block 12 .

An L-shaped buffer block 7 is set at the contact position between the deposition chamber wall and the road surface 9, and the three edges of the movable fence partition 5 are arranged on the L-shaped buffer block 7, and the remaining side is close to the filter baffle 4, and the filter baffle 4 is hinged. Form an active connection.

The movable fence partition 5 and the top of the L-shaped buffer block 7 are all flush with the road surface 9, and the bottom of the L-shaped buffer block 7 and the filter baffle plate 4 are all provided with cement pads 8 .

The flow-discarding device includes a flow-discarding device water inlet 15 arranged on the upper part of the device and a flow-discharging device collecting port 18 in the middle of the device, the flow-discarding device water inlet 15 is connected with the drain pipe 14 of the collecting device through a pipeline, and the inside of the device is also provided with The baffle plate 21, the top of the baffle plate 21 is arranged below the collection port 18 of the flow-discarding device, and the bottom is arranged on the inner bottom surface of the device. Divided into an upper chamber 22 and a lower chamber 26, the partition 37 is provided with a leak hole 23, and the lower part of the baffle 21 is horizontally provided with a spoiler 35, and the spoiler 35 connects the baffle 21 and the collection port of the spoiler The chamber formed by the opposite side walls of 18 is divided into an upper accumulating chamber 25 and a lower discarding chamber 30, the discarding plate 35 is provided with a discarding port 29, and the discarding device is provided with a control leakage hole 23 to open and close the first float valve 24 and the second float valve 27 to control the opening and closing of the discarding port 29 , and a magnetic suction valve 28 is also arranged below the discarding port 29 .

The upper part of the abandonment device is provided with a flood outlet 20, the bottom of the flood outlet 20 is higher than the top of the collection port 18 of the abandonment device, the top of the device is provided with an inspection port 16, and a filter hanging basket 17 is arranged below the water inlet 15 of the abandonment device. A filter screen 19 is provided at the inlet position of 18, and a liquid leakage port 33 penetrating the accumulator chamber 25 and the lower chamber 26 is provided on the baffle plate 21, and a liquid discharge port penetrating the lower chamber 26 and the discarding chamber 30 is provided. Mouth 34, leakage port 33 and drain port 34 areas are equal.

A drain tube 36 is arranged between the top of the flow baffle 21 in the described flow abandonment device and the side wall where the flow collection port 18 of the flow abandonment device is located, and a detachable stop bar 38 is arranged on the water inlet of the upper chamber 22, and the flow abandonment chamber 30 The waste flow pipe 31 is externally connected to the municipal sewage pipe, and the waste flow device flow limiting valve 32 is arranged on the waste flow pipe 31 .

The leakage storage device includes a storage leakage integrated tank body 60, the tank body is a double wall structure, the chamber surrounded by the inner wall 62 constitutes the water storage chamber 66, and the chamber between the inner wall and the outer wall 61 constitutes the leakage chamber 63 The lower part of the outer wall is provided with a leakage hole 74, the upper part of the inner wall is provided with an overflow hole 69 passing through the water storage chamber and the leakage chamber, and supporting ribs 64 are arranged at intervals in the leakage chamber. Water diversion holes 68 are opened on the supporting ribs. The overflow 9 is provided with a seepage hole check valve. A manhole 65 is provided on the top of the tank body. The bottom of the tank is provided with a support base 67 .

The tank body is provided with a filter well 39, and a reverse filter device is arranged in the filter well, and the reverse filter device includes a flange baffle 46 and an annular inner wall 45 arranged below the water inlet 42 of the filter well, the flange baffle and the filter well. The opening below the chamber surrounded by the annular inner wall is the filter inlet. The combined filter device 51 is arranged above the filter inlet. The filter well collection pipe 47 is located above the combined filter device and communicates with the water storage cavity of the tank. The device includes a frame 55, and three layers of filter grids 56 are arranged inside the frame. From top to bottom, there are post-stage filter modules 57, mid-stage filter modules 58 and early-stage filter modules 59. Each filter module is equal in size and size and can be replaced with each other. , the filter module is provided with a filter core body, the filter core body is quartz sand. The bottom of the filter well is provided with a sewage outlet 54 and a filter well sewage channel 43. The sewage channel is provided with a filter well check valve 44. The area of the sewage outlet is smaller than the area of the water inlet of the filter well. The well float valve includes a filter well ball plug 53, a filter well connecting rod 50 and a filter well float 49. The filter well ball plug is provided with a through groove 52, and the filter well float is arranged between the annular inner wall 45 and the filter well wall. Limiting plates 48 are arranged above and below the well float.

The whole tank body is set in the infrastructure pit below the road surface 70, the wall and bottom of the infrastructure pit are laid with water seepage geotextile 71, the space between the tank body and the wall of the infrastructure pit is filled with a stagnant seepage layer 72, and the bottom of the infrastructure pit is also provided with a reinforcement layer 73 to support The seat is set above the reinforcement layer, and the stagnant seepage layer is composed of sand and gravel with a size of 1mm-10mm.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A city street rainwater collection abandons flow filtration storage seepage system, it is characterized in that, comprises collection device, abandons flow device, filter purification equipment and storage seepage device, and collection device is connected with abandoning flow device by pipeline, and abandons flow The device is connected with municipal drainage channels, municipal sewage pipes and filtration and purification equipment, and the filtration and purification equipment is arranged on the storage leakage device or independently installed underground and connected to the storage leakage device through pipelines. 2. A system for collecting, discarding, filtering, storing, and leaking rainwater from urban streets as claimed in claim 1, wherein the collecting device includes a water inlet arranged on the road surface, and a grid cover is arranged on the water inlet flush with the road surface There is a sedimentation chamber under the water inlet, the sedimentation chamber is connected with the filter chamber through the water diversion pipe, the upper side wall of the filter chamber is connected with the water diversion pipe, the tail is connected with the drain pipe, the top of the filter chamber is provided with a movable cover plate, and the filter chamber A filter hanging basket is arranged inside, and a certain distance is left between the edge of the filter hanging basket and the side wall of the filter cavity and the drain pipe. 3. A system for collecting, discarding, filtering, storing, and leaking rainwater in urban streets as claimed in claim 2, characterized in that, the bottom of the water diversion pipe is provided with sediment blocks, and the top of the water diversion pipe is arranged vertically at the same position as the edge of the grid cover plate There is a fence, and the fence is provided with a plurality of filter baffles inclined upward along the direction of water flow. There is a certain distance between the filter baffles. A suspension block is arranged on the side wall, one end of the filter hanging basket is arranged on the suspension block, and the other end is arranged at the tail end of the sedimentation block. 4. A kind of urban street rainwater collection as claimed in claim 1 discards flow filtration storage seepage system, is characterized in that, described abandonment flow device comprises the water inlet of the abandonment flow device that is arranged on the upper part of the device and the collection port in the middle of the device, The water inlet of the discarding device is connected to the end of the drain pipe of the collecting device through a pipe, and a baffle is vertically arranged at the bottom of the discarding device, and the chamber formed by the side wall where the baffle and the collecting port are located is divided into upper and lower chambers by partitions. In the chamber and the lower chamber, leak holes are arranged on the partition, and a flow-discarding plate is arranged horizontally at the lower part of the baffle. The flow cavity and the flow-discharging cavity located below, the flow-discharging plate is provided with a flow-discharging port, the baffle plate is provided with a liquid leakage port passing through the accumulating cavity and the lower chamber, and a discharge port passing through the lower chamber and the flow-discharging chamber. The area of the liquid outlet is equal to that of the liquid leakage port and the liquid discharge port. 5. A kind of urban street rainwater collection waste stream filtering storage seepage system as claimed in claim 4 is characterized in that, the valve device for controlling the opening and closing of the waste stream opening and the leakage hole is arranged in the waste stream device, and the valve The device is the first ball float valve used to control the opening and closing of the leakage hole and the second ball float valve used to control the opening and closing of the jettison outlet. There is also a magnetic suction valve under the jettison outlet, and a flood discharge port is arranged in the upper part of the jettison device. The bottom of the spill outlet is higher than the top of the collection port, the spill outlet is connected to the municipal drainage pipe, the waste pipe is connected to the municipal sewage pipe, a one-way flow limiting valve is set on the waste pipe, and a filter protection is installed under the water inlet of the waste flow device basket, a filter screen is provided on the collection port, a drainage tube is provided between the top of the baffle plate in the flow abandonment device and the side wall where the collection port of the flow disposal device is located, and a detachable baffle is provided on the water inlet of the upper chamber. The waste flow chamber is externally connected with a waste flow pipe, which is connected with the municipal sewage pipe, and the waste flow device flow limiting valve is arranged on the waste flow pipe. 6. A system for collecting, discarding, filtering, storing, and leaking rainwater from urban streets as claimed in claim 1, wherein said filtering and purifying equipment is a filtering well arranged on a storage filtering device, and said filtering well is provided with a reverse The filter device, the reverse filter device includes a flange baffle and an annular inner wall arranged below the water inlet of the filter well, the opening below the chamber surrounded by the flange baffle and the annular inner wall is the filter inlet, and the combined filter device is set in Above the filter inlet, the filter well collection pipeline is located above the combined filter device. The combined filter device includes a frame and a filter module. Several layers of filter grids are arranged inside the frame, and the filter modules are arranged in the filter grid. The size and size of the filter modules are uniform are equal and can be replaced with each other. A filter core body is arranged in the filter module, and the filter core body is quartz sand, activated carbon, filter screen or filter cloth. 7. A kind of urban street rainwater collection as claimed in claim 6 discards flow filtration storage seepage system, is characterized in that, described filter well bottom is provided with blowdown outlet and blowdown channel, and blowdown outlet area is less than filter well water inlet area, A filter well float valve is arranged above the sewage outlet, and a one-way valve is provided on the sewage channel. The float valve includes a filter well ball plug, a filter well connecting rod and a filter well float ball. The well float is arranged between the annular inner wall and the filter well wall, and limiting plates are arranged above and below the filter well float. 8. A system for collecting, discarding, filtering, storing, and leaking rainwater in urban streets as claimed in claim 1, wherein the storage seepage device is an integrated tank for rainwater filtration, storage, and seepage, and the tank body is a double-walled structure. The chamber surrounded by the inner wall constitutes a water storage chamber, and the water storage chamber communicates with the collection pipe of the filter well. The chamber between the inner wall and the outer wall of the water storage chamber forms a leakage chamber. The water chamber and the overflow hole of the leakage chamber are provided with support ribs at intervals in the leakage chamber. 9. A system for collecting, discarding, filtering, storing, and storing rainwater in urban streets as claimed in claim 8, wherein a diversion hole is provided on the support rib, a check valve for a seepage hole is arranged on the overflow hole, and the tank There is an inspection hole on the top of the tank, and a support seat on the bottom of the tank. 10. A system for collecting, discarding, filtering, storing, and leaking rainwater from urban streets as claimed in claim 9, wherein the seepage tank is arranged in the infrastructure pit below the road surface, and the wall and bottom of the infrastructure pit are laid with water-seeping geotextiles, and the tank The space between the body and the foundation pit wall is filled with a stagnant seepage layer, and a reinforcement layer is provided at the bottom of the infrastructure pit, and the support seat is arranged above the reinforcement layer. The stagnation seepage layer is composed of a mixture of sand and gravel with a size of 1mm-10mm.