CN110029716B - Flood control drainage system used for factory and provided with initial rainwater treatment and utilization functions - Google Patents
Flood control drainage system used for factory and provided with initial rainwater treatment and utilization functions Download PDFInfo
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- CN110029716B CN110029716B CN201910264182.6A CN201910264182A CN110029716B CN 110029716 B CN110029716 B CN 110029716B CN 201910264182 A CN201910264182 A CN 201910264182A CN 110029716 B CN110029716 B CN 110029716B
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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
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- 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
- E03F5/102—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins using already existing parts of the sewer system for runoff-regulation
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention provides a flood control drainage system with initial rainwater treatment and utilization for a plant area, which comprises a flood control enclosure wall arranged around the periphery of the plant area, wherein a switching well and a rainwater collecting tank are arranged in the flood control enclosure wall, waste water treatment station and high-order drainage shaft, switch the well and include first reposition of redundant personnel pond and the second reposition of redundant personnel pond that is linked together with the rainwater collecting pit, first reposition of redundant personnel pond is connected with the first collecting pipe that is used for collecting the regional rainwater of production, the second reposition of redundant personnel pond is connected with the second collecting pipe that is used for collecting the regional rainwater of non-production, be equipped with the overflow weir between first reposition of redundant personnel pond and the second reposition of redundant personnel pond, flood control enclosure is equipped with flood control drainage shaft outward, second reposition of redundant personnel pond is linked together with flood control drainage shaft, the rainwater collecting pit is linked together through third connecting pipe and waste water treatment station, be equipped with the retrieval and utilization pump on the third connecting pipe, rainwater collecting pit and high-order drainage shaft are linked together through the fourth connecting pipe, high. The drainage system meets the flood control requirement of a plant area and meets the drainage standard of rainwater.
Description
Technical Field
The invention relates to the technical field of flood control and drainage, in particular to a flood control and drainage system which is used for a factory and has the function of initial rainwater treatment and utilization.
Background
The specific measures for flood control and drainage in the plant area are many, and the common measures comprise the steps of constructing a flood drainage ditch and a flood control enclosing wall in a low-lying area and a drainage scheme combining self-flowing drainage in the plant area and forced drainage of a pump station. Along with the enhancement of people's environmental protection consciousness, sewage just allows the emission through handling, the factory area has the pollutant to produce at production zone, the initial stage rainwater then can wash the pollutant and form sewage, the initial stage rainwater of production zone contains more pollutant promptly, the initial stage rainwater of production zone need be handled the back and is discharged from this, along with the rainwater washes, the later stage rainwater of production zone is clean rainwater, and the initial stage rainwater and the later stage rainwater of the non-production zone of factory area all can directly discharge, then need carry out categorised collection processing to the rainwater of factory area, and the rainwater treatment methods of different regions and different periods are inequality, current factory area flood control drainage system can't satisfy above-mentioned demand.
In summary, the flood control drainage system for the factory needs to consider the dam break factor of the river dam in the area near the factory, that is, the drainage system needs to meet the flood control requirement, and meanwhile, for the area with serious pollution in the factory, the initial rainwater needs to be considered for recovery processing, and in addition, the classified collection and discharge of the initial polluted rainwater and the later clean rainwater also need to be considered.
In view of the above engineering design requirements of the production plant, there is no directly referenced engineering design solution at present, and therefore it is urgently needed to provide a flood control drainage system for the plant to solve the above engineering problems.
Disclosure of Invention
Based on the defects of the prior art, the invention aims to provide a flood control drainage system with initial rainwater treatment and utilization for a plant area, which meets the flood control requirement of the plant area, realizes the classified collection and recovery of rainwater, and meets the drainage standard of the rainwater.
Based on this, the technical scheme of the invention is as follows: a flood control drainage system used for a plant area and having initial rainwater treatment and utilization comprises a flood control enclosure wall arranged on the periphery of the plant area, wherein a switching well, a rainwater collecting tank, a wastewater treatment station and a high-level drainage well are arranged in the flood control enclosure wall, the switching well comprises a first diversion pool and a second diversion pool which are separately arranged, the first diversion pool is connected with a first collecting pipe used for collecting rainwater in a production area, the second diversion pool is connected with a second collecting pipe used for collecting rainwater in a non-production area,
the first diversion pool is communicated with the rainwater collection pool through a first connecting pipe, the first connecting pipe is provided with a first gate, the second diversion pool is communicated with the rainwater collection pool through a second connecting pipe, the second connecting pipe is provided with a second gate,
an overflow weir which enables water in the first diversion pond to flow into the second diversion pond when the water level of the first diversion pond reaches a preset value is arranged between the first diversion pond and the second diversion pond, a flood control drainage well communicated with a factory external drainage channel is arranged outside the flood control enclosure wall, the second diversion pond is communicated with the flood control drainage well through a first drainage pipe, a flap valve is arranged at the pipe mouth of the first drainage pipe, the flap valve is arranged at the position of the second drainage pipe, and the flap valve is arranged at the position of the second drainage pipe,
the rainwater collecting tank with the waste water treatment station is linked together through the third connecting pipe, be equipped with the retrieval and utilization pump on the third connecting pipe, the rainwater collecting tank with high-order drainage well is linked together through a plurality of fourth connecting pipes, the highest water level of high-order drainage well is higher than the dam break water level of dykes and dams outside the factory, and each the fourth connecting pipe is equipped with the elevator pump respectively, high-order drainage well pass through the second drain pipe with flood control drainage well is linked together.
Optionally, the system further comprises a controller, and the first gate, the second gate, the recycling pump and the lift pump are electrically connected to the controller respectively.
Optionally, the bottom of the first diversion pool is higher than the bottom of the rainwater collection pool, the first end of the first connection pipe is fixedly connected to the bottom of the first diversion pool, the second end of the first connection pipe is connected to the rainwater collection pool, the weir bottom of the overflow weir is higher than the first end of the first connection pipe,
the bottom of the pool in first reposition of redundant personnel pond is higher than the bottom of the pool in second reposition of redundant personnel pond, the first tip fixed connection of first drain pipe in the bottom of the pool in second reposition of redundant personnel pond, the second tip of first drain pipe with flood control drainage well is connected.
Optionally, a height difference between the first end of the first connecting pipe and the bottom of the rainwater collecting tank is 2.16m, and a height difference between the weir bottom of the overflow weir and the bottom of the rainwater collecting tank is 3.2 m.
Optionally, the flap valve includes a valve seat, a hinge, and a valve plate, the valve seat is fixedly connected to the second end of the first drain pipe, the valve plate is hinged to the valve seat through the hinge, and the valve plate is fastened to the second end of the first drain pipe.
Optionally, the bottom of the high-level drainage well is higher than the rainwater collecting tank, the first end of the fourth connecting pipe is arranged near the bottom of the rainwater collecting tank, and the lift pump is arranged at the first end of the fourth connecting pipe,
the second end of fourth connecting pipe stretches into high-order drainage well, just the second end of fourth connecting pipe orientation the shaft bottom setting of high-order drainage well, the one end of second drain pipe set up in the shaft bottom of high-order drainage well.
Optionally, the pipe diameter of the first collecting pipe is 0.8-0.9m, the pipe diameter of the first connecting pipe is 0.8-0.9m, the pipe diameter of the second collecting pipe is 1.3-1.4m, the pipe diameter of the second connecting pipe is 1.3-1.4m, the pipe diameter of the first drain pipe is 1.3-1.4m, and the pipe diameter of the second drain pipe is 1.4-1.5 m.
Optionally, the well mouth lock joint of switching well has steel grid apron, the pool wall in first reposition of redundant personnel pond and second reposition of redundant personnel pond all is equipped with the cat ladder.
The embodiment of the invention has the following beneficial effects:
the corresponding initial stage polluted rainwater flows into the first diversion pool through the first collecting pipe, the second diversion pool is connected with a second collecting pipe for collecting rainwater in a non-production area, the rainwater in the non-production area is clean rainwater, the clean rainwater flows into the second diversion pool through the second collecting pipe, at the moment, the first gate is opened, the second gate is closed, the initial stage polluted rainwater collected in the first diversion pool flows into the rainwater collecting pool, the classified collection of the rainwater is realized, the initial stage polluted rainwater in the production area flows into the rainwater collecting pool through the first diversion pool and then leads the water to the wastewater treatment station through the recycling pump for sewage treatment, and then the water treated by the wastewater treatment station is recycled or discharged, so that the recycling or discharging requirements are met, the clean rainwater collected in the non-production area in the second diversion pool is directly discharged through the flood control drainage well, and the middle and later periods of rainwater collection, at the moment, the collected rainwater in the first diversion pool and the second diversion pool is clean rainwater and can be directly discharged, at the moment, the first gate is opened, the second gate is closed, the collected rainwater in the first diversion pool enters the rainwater collecting pool, because the rainwater collecting pool is communicated with the first diversion pool through the first connecting pipe, when the water level in the rainwater collecting pool rises until the water level overflows the first connecting pipe, if the water level in the rainwater collecting pool continues rising, the water level in the first diversion pool rises further, when the water level exceeds a preset water level, the rainwater flowing from the first collecting pipe flows into the second diversion pool through an overflow weir, and then the rainwater flows into a flood control drainage well, because a pipeline port of the first drainage pipe, which is positioned in the flood control drainage well, is provided with a flap valve, the rainwater in the second diversion pool flows out to the flood control well in a single direction, and rivers in the flood control drainage well outside the factory area then can't reverse flow into the factory area, make the drainage system in factory area realize the flood control demand, furthermore, when taking place to break the dam, the precipitation is big this moment, then open first gate and second gate, the equal quick rainwater collecting pit that gets into of water in first reposition of redundant personnel pond and the second reposition of redundant personnel pond this moment, then the water in rainwater collecting pit promotes to the high-order drainage well through the elevator pump, discharge the water in the high-order drainage well through the second drain pipe afterwards, thereby with rainwater discharge in the factory area, avoid the factory area to take place ponding, high-order drainage well is located the eminence simultaneously, can realize rivers along the automatic outflow of second drain pipe, need not to adopt electric power or other mode drives, energy can be saved.
Drawings
FIG. 1 is a system diagram of a flood control drainage system with initial rainwater treatment and utilization for a plant area according to the present embodiment,
fig. 2 is a construction diagram of the flood control drainage system with initial rainwater treatment and utilization for the plant area according to the present embodiment.
Description of reference numerals:
1. flood control enclosure, 2, switching well, 2a, first reposition of redundant personnel pond, 2b, second reposition of redundant personnel pond, 3, rainwater collecting pit, 4, waste water treatment station, 5, high-order drainage shaft, 6, first collecting pipe, 7, the second collecting pipe, 8, first gate, 9, the second gate, 10, overflow weir, 11, factory outside drainage canal, 12, flood control drainage shaft, 13, the clap door, 13a, the disk seat, 13b, the valve plate, 14, the retrieval and utilization pump, 15, the elevator pump, 16, first connecting pipe, 17, the second connecting pipe, 18, the third connecting pipe, 19, first drain pipe, 20, the second drain pipe, 21, the third drain pipe, 22, the fourth connecting pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 and 2, the direction of an arrow in the figures is a flow direction of water flow, and this embodiment provides a flood control drainage system for a plant area and having initial rainwater treatment and utilization, which includes a flood control enclosure wall 1 enclosed at the periphery of the plant area, where the height of the flood control enclosure wall 1 in this embodiment is higher than a dam break water level of a dam outside the plant area, so that when the dam break occurs in the outside dam, the flood control enclosure wall 1 effectively prevents water flow outside the plant area from merging into the dam, a switching well 2, a rainwater collecting tank 3, a wastewater treatment station 4 and a high-level drainage well 5 are arranged in the flood control enclosure wall 1, the switching well 2 includes a first diversion pool 2a and a second diversion pool 2b which are separately arranged, the first diversion pool 2a is connected with a first collecting pipe 6 for collecting rainwater in a production area, it should be noted that the production area in this embodiment refers to a production area, and the production area may generate some pollutants, the corresponding initial polluted rainwater flows into the first diversion pool 2a through the first collecting pipe 6, the second diversion pool 2b is connected with a second collecting pipe 7 used for collecting rainwater in a non-production area, the rainwater in the non-production area is clean rainwater and flows into the second diversion pool 2b through the second collecting pipe 7,
the first diversion pool 2a is communicated with the rainwater collection pool 3 through a first connecting pipe 16, the first connecting pipe 16 is provided with a first gate 8, when the first gate 8 is opened, initial polluted rainwater collected in the first diversion pool 2a flows into the rainwater collection pool 3, the second diversion pool 2b is communicated with the rainwater collection pool 3 through a second connecting pipe 17, the second connecting pipe 17 is provided with a second gate 9, the second gate 9 is not opened under the ordinary condition, and is opened under the condition of dam break, so that rainwater can enter the rainwater collection pool 3 more quickly,
a flood control drainage well 12 communicated with the plant outside drainage channel 11 is arranged outside the flood control enclosure 1, so that water in the flood control drainage well 12 can be drained through the plant outside drainage channel 11, in this embodiment, the flood control drainage well 12 is communicated with the plant outside drainage channel 11 through a third drainage pipe 21, the second diversion pool 2b is communicated with the flood control drainage well 12 through a first drainage pipe 19, so that water in the second diversion pool 2b can be directly drained to the flood control drainage well 12 through the first drainage pipe 19, because rainwater in the second diversion pool 2b is clean rainwater, the rainwater in the second diversion pool 2b is directly drained to meet the drainage requirement, the flap valve 13 is arranged at the pipe opening of the first drainage pipe 19 located in the flood control drainage well 12, and it should be noted that the flap valve 13 is a device for realizing unidirectional flow of water flow, manual operation is not needed, opening and closing force is derived from water source pressure, when the water pressure in the flap valve 13 is greater than the pressure outside the flap valve 13, the flap valve is opened, otherwise, the flap valve is closed, so that rainwater in the second diversion pond 2b flows out of the flood control drainage well 12, and water flow in the flood control drainage well 12 outside the plant area cannot reversely flow into the plant area, so that a drainage system of the plant area realizes flood control requirements. Based on the above structure, under the general rainwater collection condition, the first gate 8 is opened, when the second gate 9 is closed, the initial polluted rainwater collected by the first diversion pool 2a enters the rainwater collection pool 3, because the rainwater collection pool 3 is communicated with the first diversion pool 2a through the first connecting pipe 16, when the water level in the rainwater collection pool 3 rises until the water level overflows the first connecting pipe 16, if the water level in the rainwater collection pool 3 continues to rise, the later clean rainwater collected by the rainwater collection pool 3 is collected, and the later clean rainwater is directly discharged to meet the discharge requirement, when the water level in the rainwater collection pool 3 further rises, the water level in the first diversion pool 2a rises, when the water level exceeds the preset water level, the rainwater flowing from the first collection pipe 6 flows into the second diversion pool 2b through the overflow weir 10, and then flows into the flood control drainage well 12,
the rainwater collecting tank 3 is communicated with the wastewater treatment station 4 through a third connecting pipe 18, the third connecting pipe 18 is provided with a recycling pump 14, initial polluted rainwater in a production area flows into the rainwater collecting tank 3 through a first diversion tank 2a and then is guided to the wastewater treatment station 4 through the recycling pump 14 for sewage treatment, and then the water treated by the wastewater treatment station 4 is recycled or discharged so as to meet recycling or discharge requirements, it should be noted that the number of the third connecting pipes 18 can be selected according to requirements, in the embodiment, two third connecting pipes 18 are exemplarily adopted, but the number of the third connecting pipes 18 cannot be limited, the rainwater collecting tank 3 is communicated with the high-level drainage well 5 through a plurality of fourth connecting pipes 22, the highest water level of the high-level drainage well 5 is higher than a dam break outside a water level area, the dam break in the embodiment means that the water level outside the plant area is sharply raised due to large water level, it makes near dykes and dams emergence of breaking dam outside the factory, rises high-order drainage well 5 with the water in the rainwater collecting pool 3 this moment, then can make the rainwater in the high-order drainage well 5 discharge outside the factory by its dead weight after high-order drainage well 5 is full of the rainwater, further ensures the rainwater smoothly to discharge from this to each fourth connecting pipe 22 is equipped with elevator pump 15 respectively, high-order drainage well 5 through second drain pipe 20 with flood control drainage well 12 is linked together, then the water in the rainwater collecting pool 3 can promote to high-order drainage well 5 in through elevator pump 15, later discharge the water in the high-order drainage well 5 through second drain pipe 20, and under the general condition, high-order drainage well 5 can empty the rainwater in the rainwater collecting pool 3, when taking place to break the dam simultaneously, can discharge the rainwater in the rainwater collecting pool 3 fast.
Based on the above technical scheme, the corresponding initial stage polluted rainwater flows into the first diversion pool 2a through the first collecting pipe 6, the second diversion pool 2b is connected with the second collecting pipe 7 for collecting rainwater in the non-production area, the rainwater in the non-production area is clean rainwater, and flows into the second diversion pool 2b through the second collecting pipe 7, at this time, the first gate 8 is opened, the second gate 9 is closed, the initial stage polluted rainwater collected in the first diversion pool 2a flows into the rainwater collecting pool 3, so that the classified collection of rainwater is realized, the initial stage polluted rainwater in the production area flows into the rainwater collecting pool 3 through the first diversion pool 2a, then the water is led to the wastewater treatment station 4 through the recycling pump 14 for sewage treatment, and then the water treated by the wastewater treatment station 4 is recycled or discharged, so as to meet the requirement of drainage or discharge, the clean rainwater collected in the non-production area in the second diversion pool 2b is directly discharged through the flood control drainage well 12, in the middle and later period of rainwater collection, the collected rainwater in the first diversion pool 2a and the second diversion pool 2b are clean rainwater and can be directly discharged, at this time, the first gate 8 is opened, the second gate 9 is closed, the collected rainwater in the first diversion pool 2a enters the rainwater collection pool 3, as the rainwater collection pool 3 is communicated with the first diversion pool 2a through the first connecting pipe 16, when the water level in the rainwater collection pool 3 rises until the water level overflows the first connecting pipe 16, if the water level in the rainwater collection pool 3 continues rising, the water level in the rainwater collection pool 3 further rises, the water level in the first diversion pool 2a rises, when the water level exceeds a preset water level, the rainwater flowing from the first collection pipe 6 flows into the second diversion pool 2b through the overflow weir 10, then flows into the flood control well 12, as the pipeline port of the first drainage pipe 19 located in the flood control drainage well 12 is provided with the flap valve 13, therefore, rainwater in the second diversion pool 2b flows out to the flood control drainage well 12 in a single direction, water flow in the flood control drainage well 12 outside the plant area cannot flow into the plant area in a reverse direction, flood control requirements of a drainage system of the plant area are met, furthermore, when dam break occurs, the precipitation amount is large at the moment, the first gate 8 and the second gate 9 are opened, water in the first diversion pool 2a and the second diversion pool 2b enters the rainwater collection pool 3 rapidly at the moment, the water in the rainwater collection pool 3 is lifted into the high-position drainage well 5 through the lifting pump 15, the water in the high-position drainage well 5 is discharged through the second drainage pipe 20, the rainwater in the plant area is discharged, accumulated water in the plant area is avoided, meanwhile, the high-position drainage well 5 is located at a high position, water flow can be automatically flowed out along the second drainage pipe 20, electric power or other driving modes are not needed, and energy is saved.
In this embodiment, the flood control drainage system further includes a controller, and the first gate 8, the second gate 9, the recycling pump 14 and the lift pump 15 are electrically connected to the controller, respectively, so as to realize the automatic control of the flood control drainage system, and the control is safe and the operation is convenient. It should be noted that the controller may also be a console or the like, which implements control of the first gate 8, the second gate 9, the recycling pump 14 and the lift pump 15, specifically, the controller may adopt a PLC controller or the like, and in this embodiment, the first gate 8 and the second gate 9 are both electric gates, so that the opening control of the first gate 8 and the second gate 9 is convenient and stable. Accordingly, the drainage system can be manually controlled.
Specifically, the bottom of the first diversion pool 2a is higher than the bottom of the rainwater collection pool 3, the first end of the first connection pipe 16 is fixedly connected to the bottom of the first diversion pool 2a, so as to facilitate the flow of water to the rainwater collection pool 3 along the first connection pipe 16, the second end of the first connection pipe 16 is connected to the rainwater collection pool 3, so that the rainwater collected in the first diversion pool 2a can directly flow into the rainwater collection pool 3 through the first connection pipe 16 by its own weight, the weir bottom of the overflow weir 10 is higher than the first end of the first connection pipe 16, then the preset water level in this embodiment means that the water level in the rainwater collection pool 3 and the first diversion pool 2a reaches the weir bottom of the overflow weir 10, and when the water level further rises, the water in the first diversion pool 2a can flow into the second diversion pool 2b through the overflow weir 10,
the bottom of the pool of the first diversion pool 2a is higher than the bottom of the pool of the second diversion pool 2b, the first end part of the first drainage pipe 19 is fixedly connected with the bottom of the pool of the second diversion pool 2b, so that water in the second diversion pool 2b flows out to the flood control drainage well 12 along the first drainage pipe 19, and the second end part of the first drainage pipe 19 is connected with the flood control drainage well 12. Further, the height difference between the first end of the first connecting pipe 16 and the bottom of the rainwater collecting tank 3 is 2.16m, the height difference between the weir bottom of the overflow weir 10 and the bottom of the rainwater collecting tank 3 is 3.2m, the elevation of the first end of the first connecting pipe 16 is 6.46m, the elevation of the bottom of the rainwater collecting tank 3 is 4.3m, therefore, the height difference is 2.16m, the elevation of the weir bottom of the overflow weir 10 is 7.5m, the elevation of the bottom of the rainwater collecting tank 3 is 4.3m, therefore, the height difference is 3.2m, the above values are a set of values in practical engineering, corresponding values can be set according to practical requirements, when the water level in the rainwater collecting tank 3 exceeds the weir bottom of the overflow weir 10, at this time, the water in the first diversion tank 2a flows into the second diversion tank 2b, in this embodiment, the low level setting of the first connecting pipe 16 and the structure of the overflow weir 10 are adopted, the switching well 2 realizes the allocation of water flow in the switching well, and has simple structure and low construction cost.
The flap valve 13 comprises a valve seat 13a, a hinge and a valve plate 13b, the valve seat 13a is fixedly connected to the second end of the first drainage pipe 19, the valve plate 13b is hinged to the valve seat 13a through the hinge, and the valve plate 13b is fastened to the second end of the first drainage pipe 19, under a general condition, the water level in the plant area is higher than the water level outside the plant area, so that when water flows to the flood control drainage well 12 along the first drainage pipe 19, the valve plate 13b is opened under the impact of the water flow, and when a dam break occurs, the water level of the flood control drainage well 12 is raised, so that the valve plate 13b is fastened to the second end of the first drainage pipe 19, the water flow outside the plant area cannot flow back into the plant area, and at the moment, the water in the rainwater collection pool 3 is raised to the drainage level well 5 through the lift pump 15 and then is discharged along the second drainage pipe 20.
In addition, the bottom of the high-level drainage well 5 is higher than the rainwater collecting tank 3, the first end of the fourth connecting pipe 22 is arranged close to the bottom of the rainwater collecting tank 3, and the lift pump 15 is arranged at the first end of the fourth connecting pipe 22, so that the fourth connecting pipe 22 can sufficiently lead out water in the rainwater collecting tank 3, avoid excessive water deposition in the rainwater collecting tank 3,
the second end of fourth connecting pipe 22 stretches into high-order well 5, just the second end orientation of fourth connecting pipe 22 the shaft bottom setting of high-order well 5 then makes the water in the fourth connecting pipe 22 more conveniently get into high-order well 5, and rivers strike the bottom to high-order well 5, the one end of second drain pipe 20 set up in the shaft bottom of high-order well 5 to make the rivers in high-order well 5 more easily discharge through second drain pipe 20.
Further, in order to meet the drainage requirement, save the production cost and reduce the occupied area of the production area, the pipe diameter of the pipeline is relatively small, the pipe diameter of the first collecting pipe 6 is 0.8-0.9m, the pipe diameter of the first connecting pipe 16 is 0.8-0.9m, the occupied area of the non-production area is large, a pipeline with a larger pipe diameter is needed, the pipe diameter of the second collecting pipe 7 is 1.3-1.4m, the pipe diameter of the second connecting pipe 17 is 1.3-1.4m, the pipe diameter of the drainage pipeline is large, accumulated water can be drained conveniently, the pipe diameter of the first drainage pipe 19 is 1.3-1.4m, and the pipe diameter of the second drainage pipe 20 is 1.4-1.5 m. Preferably, the well mouth of switching well 2 has buckled the steel grating apron, the pond wall in first reposition of redundant personnel pond 2a and second reposition of redundant personnel pond 2b all is equipped with the cat ladder, and the steel grating apron can avoid pedestrian etc. to fall into the well by accident, and the cat ladder then makes things convenient for in engineering personnel to maintain switching well 2, ensures that whole flood control drainage system normally works.
By adopting the flood control drainage system which is used for the plant area and has the function of initial rainwater treatment and utilization, the corresponding initial polluted rainwater flows into the first diversion pool 2a through the first collection pipe 6, the second diversion pool 2b is connected with the second collection pipe 7 for collecting rainwater in the non-production area, the rainwater in the non-production area is clean rainwater and flows into the second diversion pool 2b through the second collection pipe 7, at the moment, the first gate 8 is opened, the second gate 9 is closed, the initial polluted rainwater collected in the first diversion pool 2a flows into the rainwater collection pool 3, so that the classified collection of the rainwater is realized, the initial polluted rainwater in the production area flows into the rainwater collection pool 3 through the first diversion pool 2a, then the water is led to the wastewater treatment station 4 through the recycling pump 14 for sewage treatment, and then the water treated by the wastewater treatment station 4 is recycled or discharged, therefore, the recycling or discharging requirements are met, the collected clean rainwater in the non-production area in the second diversion pool 2b is directly discharged through the flood control drainage well 12, at the middle and later stages of rainwater collection, at the moment, the collected rainwater in the first diversion pool 2a and the second diversion pool 2b is clean rainwater and can be directly discharged, at the moment, the first gate 8 is opened, the second gate 9 is closed, the collected rainwater in the first diversion pool 2a enters the rainwater collection pool 3, because the rainwater collection pool 3 is communicated with the first diversion pool 2a through the first connecting pipe 16, when the water level in the rainwater collection pool 3 rises until the water level overflows the first connecting pipe 16, if the water level in the rainwater collection pool 3 continues rising, the water level in the first diversion pool 2a rises further, when the water level exceeds the preset water level, the rainwater flowing from the first collection pipe 6 flows into the second diversion pool 2b through the overflow weir 10, then rainwater flows into the flood control drainage well 12, because the first drainage pipe 19 is arranged at the pipe mouth of the flood control drainage well 12 and is provided with the flap valve 13, the rainwater in the second diversion pool 2b flows out to the flood control drainage well 12 in a single direction, and the water flow in the flood control drainage well 12 outside the plant area can not flow into the plant area in a reverse direction, so that the drainage system of the plant area can meet the flood control requirement, furthermore, when the dam break occurs, the precipitation is large, the first gate 8 and the second gate 9 are opened, the water in the first diversion pool 2a and the second diversion pool 2b rapidly enters the rainwater collection pool 3, then the water in the rainwater collection pool 3 is lifted into the high-level drainage well 5 through the lifting pump 15, and then the water in the high-level drainage well 5 is drained through the second drainage pipe 20, so that the rainwater in the plant area is drained, the water accumulation in the plant area is avoided, and the high-level drainage well 5 is positioned at a high level, the water flow can automatically flow out along the second water discharge pipe 20 without being driven by electric power or other modes, and energy is saved.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The foregoing is directed to the preferred embodiment of the present invention, and it is understood that various changes and modifications may be made by one skilled in the art without departing from the spirit of the invention, and it is intended that such changes and modifications be considered as within the scope of the invention.
Claims (7)
1. A flood control drainage system with initial rainwater treatment and utilization for a plant area comprises a flood control enclosure wall arranged on the periphery of the plant area, and is characterized in that a switching well, a rainwater collecting tank, a wastewater treatment station and a high-level drainage well are arranged in the flood control enclosure wall, the switching well comprises a first diversion pool and a second diversion pool which are separately arranged, the first diversion pool is connected with a first collecting pipe used for collecting rainwater in a production area, the second diversion pool is connected with a second collecting pipe used for collecting rainwater in a non-production area,
the first diversion pool is communicated with the rainwater collection pool through a first connecting pipe, the first connecting pipe is provided with a first gate, the second diversion pool is communicated with the rainwater collection pool through a second connecting pipe, the second connecting pipe is provided with a second gate,
an overflow weir which enables water in the first diversion pond to flow into the second diversion pond when the water level of the first diversion pond reaches a preset value is arranged between the first diversion pond and the second diversion pond, a flood control drainage well communicated with a factory external drainage channel is arranged outside the flood control enclosure wall, the second diversion pond is communicated with the flood control drainage well through a first drainage pipe, a flap valve is arranged at the pipe mouth of the first drainage pipe, the flap valve is arranged at the position of the second drainage pipe, and the flap valve is arranged at the position of the second drainage pipe,
the rainwater collecting pool is communicated with the wastewater treatment station through a third connecting pipe, a recycling pump is arranged on the third connecting pipe, the rainwater collecting pool is communicated with the high-level drainage well through a plurality of fourth connecting pipes, the highest water level of the high-level drainage well is higher than the dam break water level of a dam outside a plant area, each fourth connecting pipe is respectively provided with a lifting pump, and the high-level drainage well is communicated with the flood control drainage well through a second drainage pipe;
the bottom of the first diversion pool is higher than that of the rainwater collection pool, the first end of the first connecting pipe is fixedly connected with the bottom of the first diversion pool, the second end of the first connecting pipe is connected with the rainwater collection pool, the weir bottom of the overflow weir is higher than the first end of the first connecting pipe,
the bottom of the pool in first reposition of redundant personnel pond is higher than the bottom of the pool in second reposition of redundant personnel pond, the first tip fixed connection of first drain pipe in the bottom of the pool in second reposition of redundant personnel pond, the second tip of first drain pipe with flood control drainage well is connected.
2. The flood control drainage system with initial rainwater treatment and utilization for a factory floor of claim 1, further comprising a controller, wherein the first gate, the second gate, the reuse pump and the lift pump are electrically connected to the controller respectively.
3. The flood control drainage system with initial rainwater treatment and utilization for a factory floor according to claim 1, wherein the height difference between the first end of the first connecting pipe and the bottom of the rainwater collecting tank is 2.16m, and the height difference between the weir bottom of the overflow weir and the bottom of the rainwater collecting tank is 3.2 m.
4. The flood control drainage system with initial rainwater treatment and utilization for a factory floor as claimed in claim 1, wherein the flap valve comprises a valve seat, a hinge and a valve plate, the valve seat is fixedly connected to the second end of the first drainage pipe, the valve plate is hinged to the valve seat through the hinge, and the valve plate is fastened to the second end of the first drainage pipe.
5. The flood control drainage system with initial rainwater treatment and utilization for a factory floor as claimed in claim 1, wherein the bottom of the high level drainage well is higher than the rainwater collection tank, the first end of the fourth connection pipe is disposed near the bottom of the rainwater collection tank, and the lift pump is disposed at the first end of the fourth connection pipe,
the second end of fourth connecting pipe stretches into high-order drainage well, just the second end of fourth connecting pipe orientation the shaft bottom setting of high-order drainage well, the one end of second drain pipe set up in the shaft bottom of high-order drainage well.
6. The flood control drainage system with initial rainwater treatment and utilization for the factory area according to any one of claims 1 to 5, wherein the pipe diameter of the first collecting pipe is 0.8-0.9m, the pipe diameter of the first connecting pipe is 0.8-0.9m, the pipe diameter of the second collecting pipe is 1.3-1.4m, the pipe diameter of the second connecting pipe is 1.3-1.4m, the pipe diameter of the first drainage pipe is 1.3-1.4m, and the pipe diameter of the second drainage pipe is 1.4-1.5 m.
7. The flood control drainage system with initial rainwater treatment and utilization for the plant area according to any one of claims 1 to 5, wherein a steel grating cover plate is buckled on a well mouth of the switching well, and ladder stands are arranged on the wall of each of the first diversion pond and the second diversion pond.
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| CN201910264182.6A CN110029716B (en) | 2019-04-03 | 2019-04-03 | Flood control drainage system used for factory and provided with initial rainwater treatment and utilization functions |
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| CN201910264182.6A CN110029716B (en) | 2019-04-03 | 2019-04-03 | Flood control drainage system used for factory and provided with initial rainwater treatment and utilization functions |
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| CN110029716B true CN110029716B (en) | 2020-09-11 |
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| CN110029716A (en) | 2019-07-19 |
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