CN113653161A - Initial rainwater collecting and processing system - Google Patents
Initial rainwater collecting and processing system Download PDFInfo
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- CN113653161A CN113653161A CN202111135180.0A CN202111135180A CN113653161A CN 113653161 A CN113653161 A CN 113653161A CN 202111135180 A CN202111135180 A CN 202111135180A CN 113653161 A CN113653161 A CN 113653161A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000000926 separation method Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000010802 sludge Substances 0.000 claims abstract description 7
- 238000011282 treatment Methods 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 4
- 230000009193 crawling Effects 0.000 claims 1
- 230000008021 deposition Effects 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000011221 initial treatment Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/10—Dividing the first rain flush out of the stormwater flow
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
The invention relates to an initial rainwater collecting and treating system, which comprises a rainwater collecting pool and a switching gate well, wherein the rainwater collecting pool is connected with the switching gate well; the switching gate well is provided with a rainwater inlet communicated with an external rainwater channel, a collecting tank outlet communicated with a rainwater collecting tank and a drainage system outlet communicated with a drainage system; a first gate is arranged at the output port of the collecting tank, and a second gate is arranged at the output port of the drainage system; a water flow channel is arranged in the rainwater collecting pool, and a sludge deposition area, an oil separation area and a water outlet area are sequentially arranged in the water flow channel from front to back; the mud settling area is an area with a low-lying bottom; the bottom of the oil separation area is gradually raised and then gradually lowered, an upright oil separation plate is arranged at each set distance of the oil separation area, the oil separation plate transversely covers the water flow channel, the upper part of the oil separation plate is higher than the liquid level, and a gap is formed between the lower part of the oil separation plate and the bottom of the pool; the water outlet area is provided with at least one drainage pump for draining water; a liquid level meter is arranged in the rainwater collection pool, and the control system controls the opening and closing of the first gate and the second gate according to the liquid level of the liquid level meter.
Description
Technical Field
The invention relates to an initial rainwater collecting and treating system, and belongs to the technical field of rainwater collecting and treating.
Background
In order to control non-point source pollution, environmental protection departments and relevant standards all require that production devices, stock yard areas and the like with possible non-point source pollution need to be provided with a rainwater storage tank for collecting initial rainwater, and the rainwater is discharged after reaching the standard after treatment. Because there are many areas that the non-point source pollutes, ground environment is relatively poor, and the initial stage rainwater suspended solid concentration of collecting is higher, and partial regional initial stage rainwater contains oil part grease, to subsequent processing, quality of water up to standard causes very big adverse effect.
The existing initial rainwater collecting tank only has the functions of storage and regulation, and does not consider the primary treatment of suspended matters and grease. The concentration of suspended matters in the initial rainwater is high, and oil-containing part of grease in the initial rainwater of partial areas causes great adverse effect on the subsequent treatment and the standard-reaching water quality.
And the existing rainwater collecting pool does not realize automatic control, and a special person is required to control in rainy season, so that the labor load of field personnel is increased.
To sum up, the problem that current rainwater collection system exists:
firstly, the rainwater collecting tank only has the function of initial regulation and storage and has no primary treatment function. Calculate the volume of initial stage rainwater collecting pit according to relevant standard, the rainwater is remitted into initial stage rainwater collecting pit after converging, treat that the pond is full of the collection back, arrange all the other rainwater to current rainwater system through the valve switch. The rainwater in the collecting tank is lifted and discharged to a treatment system.
And secondly, the rainwater collecting tank is lack of automatic control, the initial rainwater and the later rainwater can not be switched according to the conditions such as water level and the like, manual adjustment is needed, and the problems of high labor intensity, untimely operation and the like exist.
Disclosure of Invention
The invention aims to provide an initial rainwater collecting and treating pool which has the functions of oil separation and sedimentation and can automatically operate.
The invention adopts the following technical scheme:
an initial rainwater collecting and processing system comprises a rainwater collecting pool and a switching gate well 3; the switching gate well 3 is provided with a rainwater inlet 4 communicated with an external rainwater channel, a collecting pool outlet 6 communicated with a rainwater collecting pool and a drainage system outlet 5 communicated with a drainage system; a first gate F1 is arranged at the output port 6 of the collecting tank, and a second gate F2 is arranged at the output port 5 of the drainage system; a water flow channel is arranged in the rainwater collecting pool, and a sludge settling area, an oil separating area and a water outlet area are sequentially arranged in the water flow channel from front to back; the mud settling area is an area with a low-lying bottom; the bottom of the oil separation area is gradually raised and then gradually lowered, an upright oil separation plate 1 is arranged at each set distance of the oil separation area, the oil separation plate 1 transversely covers the water flow channel, the upper part of the oil separation plate is higher than the liquid level, and a gap is formed between the lower part of the oil separation plate and the bottom of the tank; the water outlet area is provided with at least one drainage pump for draining water; a liquid level meter is arranged in the rainwater collection pool, and a control system controls the opening and closing of the first gate F1 and the second gate F2 according to the liquid level of the liquid level meter.
Preferably, a middle partition plate is arranged in the rainwater collection tank, a hole is formed in the tail portion of the middle partition plate, the water flow channel is in a U shape under the plane view angle, and the oil separation plates 1 are distributed in the corresponding positions of the two sides of the middle partition plate.
Furthermore, the sludge settling zone and the water outlet zone are positioned on two sides of the middle partition plate, correspond to each other in front and back positions and are both areas with low bottoms; the bottom of the whole rainwater collection pool is provided with a consistent upward slope of gradually raising the bottom from the starting part of the oil separation area to the back along the direction of the middle partition plate; and a splash guard 2 is arranged at the bottom of the tail end of the oil separation area, and the splash guard 2 transversely covers the water flow channel and is higher than the pool bottom by a set distance.
Further, the position that the heavy mud district highly corresponds with collecting pit delivery outlet 6 is equipped with a water conservancy diversion weir 8, the water conservancy diversion weir transversely covers rivers passageway's width, and the bottom has the settlement interval with the bottom of the pool.
Furthermore, rainwater collecting tank lateral wall is equipped with a plurality of cat ladders 7 of being connected with the bottom of the pool.
Preferably, the plane view angle of the rainwater collecting tank is a rectangular structure.
A control method of an initial rainwater collecting and processing system adopts the initial rainwater collecting and processing system; under the normal state, the first gate F1 is normally open, and the second gate F2 is normally closed; a. initial state: the first gate F1 is fully opened, and the second gate F2 is fully closed; b. when no rain exists: when the liquid level meter monitors that the water level in the rainwater collection tank reaches a pump starting water level, the drainage pump starts to work, at the moment, the first gate F1 is fully opened, and the second gate F2 is fully closed; c. in rainy days: when the liquid level meter monitors that the water level in the rainwater collection tank reaches the designed collection amount, the second gate F2 is fully opened, and after the time delay is 5-10 s, the first gate F1 is fully closed.
The invention has the beneficial effects that:
1) the automatic rainwater collection system is particularly suitable for an initial rainwater system with a large amount of suspended matters and grease, the load of a subsequent treatment process is reduced, the automation degree is improved, and the labor intensity is reduced.
2) Automatic control is realized to the rainwater collecting tank, can carry out the switching of initial stage rainwater and later stage rainwater according to the water level condition, need not artifical the regulation, alleviates intensity of labour, improves the promptness of operation.
Drawings
Fig. 1 is a plan view of the initial rainwater collection and treatment system of the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
Fig. 4 is a sectional view taken along line C-C in fig. 1.
In the figure, 1, an oil separation plate, 2, a mudguard, 3, a switching gate well, 4, a rainwater inlet, 5, a drainage system outlet, 6, a collection pool outlet, 7, a ladder stand, 8, a diversion weir and 9, a handrail.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1-4, an initial rainwater collection and treatment system includes a rainwater collection pool, a switching gate well 3; the switching gate well 3 is provided with a rainwater inlet 4 communicated with an external rainwater channel, a collecting pool outlet 6 communicated with a rainwater collecting pool and a drainage system outlet 5 communicated with a drainage system; a first gate F1 is arranged at the output port 6 of the collecting tank, and a second gate F2 is arranged at the output port 5 of the drainage system; a water flow channel is arranged in the rainwater collecting pool, and a sludge settling area, an oil separating area and a water outlet area are sequentially arranged in the water flow channel from front to back; the mud settling area is an area with a low-lying bottom; the bottom of the oil separation area is gradually raised and then gradually lowered, an upright oil separation plate 1 is arranged at each set distance of the oil separation area, the oil separation plate 1 transversely covers the water flow channel, the upper part of the oil separation plate is higher than the liquid level, and a gap is formed between the lower part of the oil separation plate and the bottom of the tank; the water outlet area is provided with at least one drainage pump for draining water; a liquid level meter is arranged in the rainwater collection pool, and a control system controls the opening and closing of the first gate F1 and the second gate F2 according to the liquid level of the liquid level meter.
Specifically, for example, the initial rainwater collection and treatment tank is applied to an initial rainwater collection system on a scrap yard. Referring to fig. 1, the size of a single seat of the initial rainwater collecting tank is as follows: the L multiplied by B multiplied by H is 16m multiplied by 5m multiplied by-2.5 m (local-3.5 m), the reinforced concrete structure is divided into 2 grids in the pool, the hydraulic retention time is prolonged, and the removal rate of suspended substances/grease is improved. The pool is internally provided with a water inlet area, a sedimentation area, an oil separation area and a water outlet area. The water inlet area is provided with a flow guide weir 8, 4 oil separation plates 1 are arranged in a convoluted flow channel in the tank, and 2 submersible sewage pumps are arranged in the water outlet area facility and used for discharging waste water in the tank. It should be noted that the initial rainwater collection and treatment water tank adopts a reinforced concrete structure, and the specific actual size can be flexibly determined according to the collection area.
Referring to fig. 1-2, the switching gate shaft 3 is provided with 2 steel plate gates in the switching gate shaft 3 of reinforced concrete structure, and 2 runners of the pool inlet and rainwater inlet system are respectively controlled. The liquid level meter is arranged in the pool, and the liquid level is interlocked with the drainage pump and each gate, so that full-automatic control can be realized.
The tank body is designed into a multi-grid form, so that the retention time of water flow in the tank body can be prolonged, and the sedimentation efficiency and the oil separation effect are improved. Because the oil separation plates are arranged at certain intervals and the elevation of each oil separation plate is adjusted and controlled according to the water level, the oil separation efficiency can be improved.
In this embodiment, referring to fig. 1, a middle partition plate is arranged in the rainwater collection tank, a hole is formed in the tail portion of the middle partition plate, so that the water flow channel is in a U shape in a planar view, and the oil separation plates 1 are distributed at corresponding positions on two sides of the middle partition plate.
In this embodiment, referring to fig. 1 to 3, the mud settling zone and the water outlet zone are located on two sides of the middle partition plate, and the front and rear positions correspond to each other and are both the zones with the low bottoms; the bottom of the whole rainwater collection pool is provided with a consistent upward slope of gradually raising the bottom from the starting part of the oil separation area to the back along the direction of the middle partition plate; and a splash guard 2 is arranged at the bottom of the tail end of the oil separation area, and the splash guard 2 transversely covers the water flow channel and is higher than the pool bottom by a set distance.
In this embodiment, referring to fig. 1-2, a diversion weir 8 is disposed at a position corresponding to the height of the outlet 6 of the collecting tank in the sludge settling zone, the diversion weir 8 transversely covers the width of the water flow channel, and a set distance is provided between the bottom of the water flow channel and the bottom of the collecting tank. The diversion weir can prevent short flow of inlet water.
In this embodiment, see fig. 1, the side walls of the rainwater collection tank are provided with a plurality of ladder stands 7 connected to the bottom of the tank.
In this embodiment, referring to fig. 1, the rainwater collection tank has a rectangular structure in a planar view.
The working principle is as follows: and the precipitation/oil separation function of the initial rainwater collecting tank is increased. The running states of the gate and the water pump are controlled by the liquid level signal, and full-automatic running is realized. The preliminary treatment effect of the water quality of the initial rainwater collection tank is increased, and the treatment load of a subsequent treatment process is reduced; the automatic operation and switching functions of the initial rainwater collecting tank are realized; it should be noted that the design form of the pool body can be flexible and changeable actually, and the optimal design can be carried out by combining site conditions; the arrangement mode and the relative position of the gate well and the pool body are both adjustable.
This initial stage rainwater collection processing system during operation:
under the normal state, the first gate F1 is normally open, and the second gate F2 is normally closed;
a. initial state: the first gate F1 is fully opened, and the second gate F2 is fully closed;
b. when no rain exists: when the liquid level meter monitors that the water level in the rainwater collection tank reaches a pump starting water level, the drainage pump starts to work, at the moment, the first gate F1 is fully opened, and the second gate F2 is fully closed;
c. in rainy days: when the liquid level meter monitors that the water level in the rainwater collection tank reaches the designed collection amount, the second gate F2 is fully opened, and after the time delay is 5-10 s, the first gate F1 is fully closed.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a processing system is collected to initial stage rainwater which characterized in that:
comprises a rainwater collecting pool and a switching gate well (3);
the switching gate well (3) is provided with a rainwater inlet (4) communicated with an external rainwater channel, a collecting tank outlet (6) communicated with a rainwater collecting tank and a drainage system outlet (5) communicated with a drainage system; a first gate (F1) is arranged at the output port (6) of the collecting tank, and a second gate (F2) is arranged at the output port (5) of the drainage system;
a water flow channel is arranged in the rainwater collecting pool, and a sludge settling area, an oil separating area and a water outlet area are sequentially arranged in the water flow channel from front to back;
the mud settling area is an area with a low-lying bottom;
the bottom of the oil separation area is gradually raised and then gradually lowered, an upright oil separation plate (1) is arranged at each set distance of the oil separation area, the oil separation plate (1) transversely covers the water flow channel, the upper part of the oil separation plate is higher than the liquid level, and a gap is formed between the lower part of the oil separation plate and the bottom of the tank;
the water outlet area is provided with at least one drainage pump for draining water;
a liquid level meter is arranged in the rainwater collection pool, and a control system controls the opening and closing of the first gate (F1) and the second gate (F2) according to the liquid level of the liquid level meter.
2. The incipient rain water collection and treatment system of claim 1, wherein: the rainwater collecting pool is characterized in that a middle partition plate is arranged in the rainwater collecting pool, the tail part of the middle partition plate is provided with a hole, so that the water flow channel is U-shaped under a plane view angle, and the oil separating plates (1) are distributed at corresponding positions on two sides of the middle partition plate.
3. The incipient rain water collection and treatment system of claim 2, wherein:
the sludge settling zone and the water outlet zone are positioned on two sides of the middle partition plate, correspond to each other in front and back positions and are both areas with low bottoms;
the bottom of the whole rainwater collection pool is provided with a consistent upward slope of gradually raising the bottom from the starting part of the oil separation area to the back along the direction of the middle partition plate;
and a splash guard (2) is arranged at the bottom of the tail end of the oil separation area, and the splash guard (2) transversely covers the water flow channel and is higher than the pool bottom by a set distance.
4. An incipient rain water collection and treatment system according to claim 1 or 2, wherein: the position that heavy mud district and collecting pit delivery outlet (6) highly correspond is equipped with a water conservancy diversion weir (8), the water conservancy diversion weir transversely covers rivers passageway's width, and the bottom has with the bottom of the pool and sets for the interval.
5. The incipient rain water collection and treatment system of claim 2, wherein: the rainwater collecting tank side wall is provided with a plurality of crawling ladders (7) connected with the tank bottom.
6. An incipient rain water collection and treatment system according to claim 1 or 2, wherein: the plane view angle of the rainwater collecting tank is of a rectangular structure.
7. A control method of an initial rainwater collecting and processing system is characterized in that:
the initial rainwater collecting and processing system of any one of claims 1 to 6 is adopted;
under the normal state, the first gate (F1) is normally opened, and the second gate (F2) is normally closed;
a. initial state: the first gate (F1) is fully opened, and the second gate (F2) is fully closed;
b. when no rain exists: when the liquid level meter monitors that the water level in the rainwater collection tank reaches a pump starting water level, the drainage pump starts to work, at the moment, the first gate (F1) is fully opened, and the second gate (F2) is fully closed;
c. in rainy days: when the liquid level meter monitors that the water level in the rainwater collection pool reaches the designed collection amount, the second gate (F2) is fully opened, and after the time delay is 5-10 s, the first gate (F1) is fully closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111135180.0A CN113653161A (en) | 2021-09-27 | 2021-09-27 | Initial rainwater collecting and processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111135180.0A CN113653161A (en) | 2021-09-27 | 2021-09-27 | Initial rainwater collecting and processing system |
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| CN113653161A true CN113653161A (en) | 2021-11-16 |
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| CN202111135180.0A Pending CN113653161A (en) | 2021-09-27 | 2021-09-27 | Initial rainwater collecting and processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116040884A (en) * | 2023-03-02 | 2023-05-02 | 中建三局绿色产业投资有限公司 | Urban water treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208267068U (en) * | 2018-05-22 | 2018-12-21 | 中石化宁波工程有限公司 | A kind of initial rainwater collection device |
| WO2019137149A1 (en) * | 2018-01-15 | 2019-07-18 | 水利部交通运输部国家能源局南京水利科学研究院 | Engineering system for collecting and utilizing regional rainwater and allocation method |
| CN110029716A (en) * | 2019-04-03 | 2019-07-19 | 中国能源建设集团广东省电力设计研究院有限公司 | A kind of flood control and water drain system for having both initial rainwater processing and utilizing for plant area |
| CN111236408A (en) * | 2020-03-09 | 2020-06-05 | 上海市城市建设设计研究总院（集团）有限公司 | Joint construction structure of drainage pump station and regulation and storage tank and operation method thereof |
| CN215715894U (en) * | 2021-09-27 | 2022-02-01 | 上海梅山工业民用工程设计研究院有限公司 | Initial rainwater collecting and processing system |
-
2021
- 2021-09-27 CN CN202111135180.0A patent/CN113653161A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019137149A1 (en) * | 2018-01-15 | 2019-07-18 | 水利部交通运输部国家能源局南京水利科学研究院 | Engineering system for collecting and utilizing regional rainwater and allocation method |
| CN208267068U (en) * | 2018-05-22 | 2018-12-21 | 中石化宁波工程有限公司 | A kind of initial rainwater collection device |
| CN110029716A (en) * | 2019-04-03 | 2019-07-19 | 中国能源建设集团广东省电力设计研究院有限公司 | A kind of flood control and water drain system for having both initial rainwater processing and utilizing for plant area |
| CN111236408A (en) * | 2020-03-09 | 2020-06-05 | 上海市城市建设设计研究总院（集团）有限公司 | Joint construction structure of drainage pump station and regulation and storage tank and operation method thereof |
| CN215715894U (en) * | 2021-09-27 | 2022-02-01 | 上海梅山工业民用工程设计研究院有限公司 | Initial rainwater collecting and processing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116040884A (en) * | 2023-03-02 | 2023-05-02 | 中建三局绿色产业投资有限公司 | Urban water treatment method |
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