CN213652196U - Treatment system for urban rainwater regulation and quality classification - Google Patents
Treatment system for urban rainwater regulation and quality classification Download PDFInfo
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- CN213652196U CN213652196U CN202022161062.4U CN202022161062U CN213652196U CN 213652196 U CN213652196 U CN 213652196U CN 202022161062 U CN202022161062 U CN 202022161062U CN 213652196 U CN213652196 U CN 213652196U
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Abstract
A treatment system for urban rainwater regulation and quality classification comprises a sand accumulation forebay, a sewage pump pool, a primary rainwater storage pool, a treatment pool and an emptying pool. The sand accumulation forebay is connected with a main water inlet pipe, the main water inlet pipe is connected with a rotational flow sand setting device, and branch pipes of the main water inlet pipe are communicated with the treatment tank; an overflow grid and an overflow hole are arranged on the inner wall of the sewage pump pond connected with the sand accumulation forebay, and a sewage device communicated with a municipal sewage pipe network is arranged at the bottom of the sewage pump pond; a filter material layer is arranged in the treatment tank, a blind pipe is arranged at the bottom of the filter material layer, and the blind pipe is communicated with the emptying tank; an emptying device communicated with a municipal waste water facility is arranged inside the emptying tank, a main flushing pipe is connected between the emptying device and the primary rain storage tank, and a flushing nozzle mounted on the main flushing pipe is flushed. The system can realize rainwater regulation and quality-divided treatment, has a simple and compact structure, can effectively treat the problem of urban rainwater pollution, realizes the resource utilization of rainwater, does not need to additionally arrange a flushing device, and saves the engineering investment.
Description
Technical Field
The utility model belongs to the technical field of the rainwater is handled, in particular to a processing system that is used for urban rainwater regulation and branch matter.
Background
The runoff of rainwater refers to the water flow of rainfall flowing along the earth surface or underground under the action of gravity, and the non-point source pollution caused by the runoff of rainwater becomes the main factor of urban water pollution. The proportion of pollution load of the rainwater-collecting device is increased by times in a short time in rainy season, the rainwater-collecting device has explosiveness and discontinuity, and researches show that the maximum value of pollutant indexes contained in initial rainwater in certain areas is far higher than that of typical urban domestic sewage, and the thorough improvement of urban water environment quality is severely restricted. Meanwhile, rainstorm easily causes rainwater deposition in cities, flood is formed, and the phenomenon that the cities see the sea occurs. In addition, the urban rainfall cannot be well utilized, and the waste of resources is caused.
At present, although a lot of ways of intercepting initial rainwater exist, some initial rainwater discarding devices are adopted, no proper treatment method is provided for how to treat the initial rainwater after discarding. While rebuilding a new urban drainage system or rebuilding an existing urban drainage system on a large scale is costly and almost impractical. In addition, the rainwater pollutant content in the middle and later periods is lower, and the rainwater can be used as urban general water after being slightly treated. In summary, it is necessary to treat, control and recycle the initial rainwater in cities.
SUMMERY OF THE UTILITY MODEL
The defect that exists to the above-mentioned prior art, the utility model aims at providing a processing system that is used for urban rainwater regulation and divides matter, this system can realize that rainwater regulation and divide matter to handle and simple structure is compact, can handle urban rainwater pollution problem effectively, realizes the utilization of rainwater and need not to establish washing unit in addition, practices thrift the engineering investment.
As the conception, the technical proposal of the utility model is that: the utility model provides a be used for urban rainwater regulation and hold and divide matter processing system, includes long-pending sand forebay, dredge pump pond, first rain storage pond, handles pond and evacuation pool, its characterized in that: the sand accumulation forebay is connected with a main water inlet pipe, the main water inlet pipe is connected with a rotational flow sand setting device, a branch pipe of the main water inlet pipe is communicated with the treatment tank, and butterfly valves are arranged on the main water inlet pipe and the branch pipe; an overflow grid and an overflow hole are arranged on the inner wall of the sewage pump pond connected with the sand accumulation forebay, and a sewage device communicated with a municipal sewage pipe network is arranged at the bottom of the sewage pump pond; a filter material layer is arranged in the treatment tank, a blind pipe is arranged at the bottom of the filter material layer, and the blind pipe is communicated with the emptying tank; the interior of the emptying tank is provided with an emptying device communicated with a municipal miscellaneous water facility, a washing main pipe is connected between the emptying device and the primary rain storage tank, a washing nozzle mounted on the washing main pipe washes the primary rain storage tank, and washing water is discharged into a municipal sewage pipe network through a sewage discharge device after being discharged into a pump tank.
Further, a liquid level meter is installed on the inner wall of the primary rain storage pool.
Further, a liquid level meter is arranged on the inner wall of the emptying tank.
Furthermore, an overflow weir is arranged at the top of the treatment pool.
Furthermore, a blind pipe at the bottom of the treatment pool is connected with a flushing pipe.
Furthermore, the sewage discharge device consists of a sewage discharge pump, a sewage discharge water outlet pipe and a sewage discharge adjusting valve, wherein the bottom of the sewage discharge pump is connected with the sewage discharge water outlet pipe, and the sewage discharge adjusting valve is installed on the sewage discharge water outlet pipe.
Further, the emptying device consists of an emptying pump, a main discharge pipe and a butterfly valve, wherein the bottom of the emptying pump is connected with the main discharge pipe, and the butterfly valve is arranged on the main discharge pipe.
Furthermore, the surface of the filter material layer is sequentially provided with a volcanic rock crushed layer with the diameter of 400mm and the diameter of 16-25mm, a volcanic rock crushed layer with the diameter of 300mm and the diameter of 8-16mm, a volcanic rock crushed layer with the diameter of 100mm and the diameter of 4-8mm and a volcanic rock crushed layer with the diameter of 200mm and the diameter of 20-32 mm.
Further, a grid buttress is arranged at the bottom of the overflow grid.
Furthermore, a discharge branch pipe is connected to a discharge main pipe of the emptying device and communicated with the primary rain storage pool, and a butterfly valve is installed on the discharge branch pipe.
The utility model has the advantages of it is following:
1. the utility model discloses can realize that the rainwater regulation holds and divides the matter to handle, and system structure is compact, can practice thrift the engineering investment.
2. The utility model discloses arrange the mud district and wash the design of facility, can save the water source and the equipment cost of washing in the design of conventional regulation pond, need not to establish regulation pond washing unit in addition promptly, the self-cleaning can be realized to the system.
3. The utility model discloses the design of handling pond overflow area can guarantee the operation of system safety and stability.
4. The utility model discloses the design of filter bed (volcanic rock metalling) is favorable to improving the absorption to the pollutant and gets rid of efficiency in the treatment pond, compares other ecological treatment system excess sludge output simultaneously and hangs down. Meanwhile, the size of the crushed stone is beneficial to increasing the specific surface area attached by microorganisms and increasing the microbial biomass, and the volcanic rock crushed stone layer with the particle size of 100mm and the particle size of 4-8mm can intercept the biofilm dropped from the upper part, so that the effluent quality of rainwater can be improved, and the device has the characteristics of stable effluent quality and high pollutant removal total amount.
5. The utility model discloses can realize rainwater utilization simultaneously. When the system is stably operated, compared with the traditional treatment facility, the system greatly reduces the construction and operation cost of the system, and can ensure the stable operation of water while controlling the rainwater runoff pollution.
Drawings
Fig. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic sectional view taken along line B-B of FIG. 1;
fig. 4 is a schematic cross-sectional view of C-C of fig. 1.
In the figure, 1-a sand accumulation forebay, 2-a sewage pump pool, 3-a primary rain storage pool, 4-a treatment pool, 5-an evacuation pool, 6-a main water inlet pipe, 7-a butterfly valve, 8-an overflow grid, 9-a grid buttress, 10-an overflow hole, 11-a sewage pump, 12-a sewage outlet pipe, 13-a sewage adjusting valve, 14-a liquid level meter, 15-a main flushing pipe, 16-a flushing nozzle, 17-a guide wall, 18-a water inlet pipe, 19-a butterfly valve, 20-a blind pipe, 21-a filter material layer, 22-a flushing pipe, 23-an evacuation pump, 24-a main discharge pipe, 25-a butterfly valve, 26-a liquid level meter, 27-an overflow weir, 28-an access hole, 29-a unpowered cyclone sand setting device and 30-a butterfly valve, 31-butterfly valve.
Detailed Description
The utility model relates to a be used for urban rainwater regulation and branch matter processing system, including long-pending sand forebay 1, dredge pump pond 2, first rain storage pool 3, treatment tank 4 and evacuation pool 5. The sand accumulation forebay 1 is used for water distribution and pretreatment, the sewage pump pool 2 is used for draining initial rainwater stored in the initial rainwater storage pool and flushing and draining water of the treatment pool, the initial rainwater storage pool 3 is used for storing initial rainwater, and the emptying pool 5 is used for treating middle and later rainwater and emptying treatment water.
The sand accumulation forebay 1 is connected with a water inlet main pipe 6, the water inlet main pipe 6 is connected with an unpowered rotational flow sand setting device 29, a branch pipe of the water inlet main pipe 6 is communicated with the treatment tank 4, and butterfly valves 7 and 19 are respectively arranged on the water inlet main pipe and the branch pipe.
The inner wall that dredge pump pond 2 and long-pending sand forebay 1 meet sets up overflow grid 8 and overflow hole 10, and overflow grid bottom installation grid buttress 9, the bottom of dredge pump pond 2 is provided with the waste fitting discharging with municipal sewer network intercommunication, and this waste fitting discharging comprises dredge pump 11, blowdown outlet pipe 12 and blowdown governing valve 13, and blowdown outlet pipe 12 is connected to dredge pump 11 bottom, and blowdown outlet pipe is last to install blowdown governing valve 13.
A filter material layer 21 is arranged in the treatment tank 4, a blind pipe 20 is arranged at the bottom of the filter material layer, and the blind pipe is communicated with the emptying tank 5. The top of the treatment pool is provided with an overflow weir 27, a blind pipe at the bottom can be connected with a flushing pipe, and the surface of the filter material layer is sequentially provided with a volcanic rock gravel layer with the thickness of 400mm and phi 16-25mm, a volcanic rock gravel layer with the thickness of 300mm and phi 8-16mm, a volcanic rock gravel layer with the thickness of 100mm and phi 4-8mm and a volcanic rock gravel layer with the thickness of 200mm and phi 20-32 mm.
The inside emptying devices who communicates with municipal miscellaneous water facility that is provided with of evacuation pool 5, this emptying devices and the storage pool of just rain are connected between and are washed and are responsible for 15, wash and be responsible for and install washing terminals 16 and butterfly valve 30, wash terminals 16 and carry out the washing of the storage pool of just rain, wash water along the ramp row after the pump pond of row income is gone into municipal sewage pipe network through waste fitting discharging. The emptying device consists of an emptying pump 23, a main discharge pipe 24 and a butterfly valve 25, wherein the bottom of the emptying pump 23 is connected with the main discharge pipe 24, the main discharge pipe is provided with the butterfly valve 25, the main discharge pipe 24 is connected with a branch discharge pipe communicated with the primary rain storage tank, and the branch discharge pipe is provided with the butterfly valve 31.
And the tops of the sewage pump pool 2, the treatment pool 4 and the emptying pool 5 are provided with access holes 28.
The technical process of the utility model is as follows:
(1) when rainfall begins, rainwater is subjected to initial sedimentation of large-particle pollutants and silt through the unpowered rotational flow sand setting device 29;
(2) the initial rainwater treated in the step (1) enters a sand accumulation forebay through a water inlet pipe 6, and the impact of the fluctuation of instantaneous rainfall on an overflow grid 8 is prevented while sediment is further deposited;
(3) enabling the initial rainwater treated in the step (2) to pass through an overflow grid 8 through overflow holes 10, physically intercepting fine particles, and enabling the initial rainwater to enter an initial rainwater storage pool 3 for storing the initial rainwater;
(4) when a liquid level meter 14 in the initial rain storage pool 3 monitors that the water level of the initial rain storage pool 3 rises to a limited height, a butterfly valve 7 is closed, a butterfly valve 19 is opened, and the rainwater in the middle and later periods enters a treatment pool 4 to carry out biochemical treatment on the rainwater, wherein the initial rainwater in the initial rain storage pool 3 caused by damage of monitoring or regulating facilities exceeds the limited liquid level and then directly flows into the treatment pool 4 over an overflow weir 27 to be stored and treated;
(5) the treated water flowing into the treatment tank 4 in the step (4) passes through 400mm and phi 16-25mm volcanic rock fragments, 300mm and phi 8-16mm volcanic rock fragments, 100mm and phi 4-8mm volcanic rock fragments and 200mm and phi 20-32mm volcanic rock fragments in sequence from the surface of the filter material layer 21 for biochemical treatment, and pollutants are adsorbed and removed by volcanic rock layers, and microorganisms attached to the volcanic rock also contribute great force to the removal of the pollutants;
(6) collecting the treated water in the step (5) by a blind pipe 20 at the bottom of a filter material layer 21, conveying the collected treated water to an emptying pool 5, discharging the biochemically treated rainwater into a municipal waste water facility by a built-in emptying pump 23 through a discharge pipe 24, closing a butterfly valve 19 after a liquid level meter 26 built in the emptying pool 5 monitors that the liquid level of the emptying pool 5 rises to a specified height, and stopping water inflow of the treatment pool 4;
(7) after the rain stops, the initial rainwater stored in the primary rain storage tank 3 is discharged into a municipal sewage pipe network by a sewage pump 11 arranged in the sewage pump tank 2 through a sewage outlet pipe 12 and is conveyed to a sewage treatment plant for treatment;
(8) the primary rain storage pool 3 needs to be flushed regularly, the flushing facility pressurizes the outlet water of the treatment pool 4 through an emptying pump 23, then the outlet water is flushed from the primary rain storage pool 3 through a flushing nozzle 16 on a flushing main pipe 15, and the flushing water is discharged into the pump pool 2 along a ramp and then is discharged into a municipal sewage pipe network through a built-in sewage pump 11;
(9) the blind pipe at the bottom of the treatment tank 4 needs to be regularly washed, high-pressure clear water is injected into the blind pipe through a washing pipe connected with the upper part of the blind pipe to wash a biomembrane dropped from a matrix layer brought by the interior of the blind pipe so as to prevent the water inlet hole of the blind pipe from being blocked, and the washing water is discharged into the primary rain storage tank 3 through the emptying pump 23 and then discharged into a municipal sewage pipe network through the sewage pump 11.
The above embodiments are only used to illustrate the structure and technical solutions of the device, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art can modify or substitute the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a be used for urban rainwater regulation and hold and divide matter processing system, includes long-pending sand forebay, dredge pump pond, first rain storage pond, handles pond and evacuation pool, its characterized in that: the sand accumulation forebay is connected with a main water inlet pipe, the main water inlet pipe is connected with a rotational flow sand setting device, a branch pipe of the main water inlet pipe is communicated with the treatment tank, and butterfly valves are arranged on the main water inlet pipe and the branch pipe; an overflow grid and an overflow hole are arranged on the inner wall of the sewage pump pond connected with the sand accumulation forebay, and a sewage device communicated with a municipal sewage pipe network is arranged at the bottom of the sewage pump pond; a filter material layer is arranged in the treatment tank, a blind pipe is arranged at the bottom of the filter material layer, and the blind pipe is communicated with the emptying tank; the interior of the emptying tank is provided with an emptying device communicated with a municipal miscellaneous water facility, a washing main pipe is connected between the emptying device and the primary rain storage tank, a washing nozzle mounted on the washing main pipe washes the primary rain storage tank, and washing water is discharged into a municipal sewage pipe network through a sewage discharge device after being discharged into a pump tank.
2. The system according to claim 1, wherein the system comprises: and a liquid level meter is arranged on the inner wall of the primary rain storage pool.
3. The system according to claim 1, wherein the system comprises: and a liquid level meter is arranged on the inner wall of the emptying tank.
4. The system according to claim 1, wherein the system comprises: and the top of the treatment tank is provided with an overflow weir.
5. The system according to claim 1, wherein the system comprises: the blind pipe at the bottom of the treatment pool is connected with the flushing pipe.
6. The system according to claim 1, wherein the system comprises: the sewage discharge device consists of a sewage discharge pump, a sewage discharge water outlet pipe and a sewage discharge adjusting valve, wherein the bottom of the sewage discharge pump is connected with the sewage discharge water outlet pipe, and the sewage discharge adjusting valve is installed on the sewage discharge water outlet pipe.
7. The system according to claim 1, wherein the system comprises: the emptying device consists of an emptying pump, a main discharge pipe and a butterfly valve, wherein the bottom of the emptying pump is connected with the main discharge pipe, and the main discharge pipe is provided with the butterfly valve.
8. The system according to claim 1, wherein the system comprises: the surface of the filter material layer is sequentially provided with a volcanic rock crushed layer with the diameter of 400mm and the diameter of 16-25mm, a volcanic rock crushed layer with the diameter of 300mm and the diameter of 8-16mm, a volcanic rock crushed layer with the diameter of 100mm and the diameter of 4-8mm and a volcanic rock crushed layer with the diameter of 200mm and the diameter of 20-32 mm.
9. The system according to claim 1, wherein the system comprises: and a grid buttress is arranged at the bottom of the overflow grid.
10. The system according to claim 7, wherein the system comprises: the main discharge pipe of the emptying device is connected with a branch discharge pipe communicated with the primary rain storage pool, and the branch discharge pipe is provided with a butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022161062.4U CN213652196U (en) | 2020-09-28 | 2020-09-28 | Treatment system for urban rainwater regulation and quality classification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022161062.4U CN213652196U (en) | 2020-09-28 | 2020-09-28 | Treatment system for urban rainwater regulation and quality classification |
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| Publication Number | Publication Date |
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| CN213652196U true CN213652196U (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022161062.4U Active CN213652196U (en) | 2020-09-28 | 2020-09-28 | Treatment system for urban rainwater regulation and quality classification |
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| CN (1) | CN213652196U (en) |
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