CN105839758A - Variable initial rainwater flow abandon control system and control method and construction method - Google Patents
Variable initial rainwater flow abandon control system and control method and construction method Download PDFInfo
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- CN105839758A CN105839758A CN201610293070.XA CN201610293070A CN105839758A CN 105839758 A CN105839758 A CN 105839758A CN 201610293070 A CN201610293070 A CN 201610293070A CN 105839758 A CN105839758 A CN 105839758A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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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
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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
- E03F5/105—Accessories, e.g. flow regulators or cleaning devices
- E03F5/107—Active flow control devices, i.e. moving during flow regulation
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- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention relates to a variable initial rainwater flow abandon control system and control method and a construction method. The control system comprises a meteorology receiving system, a controller and a flow abandon device; the meteorology receiving system transmits a received weather forecast and received real-time meteorology data to the controller; the controller determines a flow abandon time point which meets the requirements of corresponding pollutant concentrations according to the interval day number between this-time rainfall and last-time rainfall, the rainfall intensity acquired by the weather forecast, the pollutant concentration changing conditions in the initial period of the rainfall and the inter-relations among the corresponding pollutant concentrations at t moment in the rainwater runoff process and controls the flow abandon device to stop flow abandon at the flow abandon time point and start collecting rainwater runoff.
Description
Technical field
The present invention relates to a kind of variable early-stage rainwater stream abandoning control system, control method and construction method.
Background technology
Entering 21 century, along with the development of industrial or agricultural society, water resources problems is increasingly becoming restriction human social development
Principal element.
Due to the rainfall initial stage, rainwater has dissolved the contaminative gas such as a large amount of sour gas in air, vehicle exhaust, plant gas
Body, behind landing ground, again owing to washing away roofing, asphalt concrete road etc. so that containing substantial amounts of pollution in early stage rainwater
Material, the pollution level of early stage rainwater is higher, and even beyond the pollution level of ordinary municipal sewage, this conclusion is referred to as initial stage pouring
Wash effect.Therefore typically utilizing rainwater flow-discarding device that early-stage rainwater carries out abandoned stream in rainwater catchment system, later stage rainwater is through letter
Single process enters storing facilities of water, in order to utilize.
Existing early-stage rainwater stream abandoning device mainly has abandoned stream stormwater tank, suitching type or tubule abandoned stream well, automatic turnover type just rain
The multi-forms such as separator and jump weir formula rainwater shunting well.
In abandoned stream stormwater tank is the cell body that early-stage rainwater first flows into corresponding volume and store, when the early-stage rainwater of storage reaches one
After determining volume, rainwater begins to flow into recovery rain water collecting system.The while that suitching type or tubule abandoned stream well being in rainwater inspection well
Burying connection downstream catch-basin and two drain pipies of downstream wastewater well underground, the switching between two drain pipies need to arrange manual simplified
Gate valve or Automatic slucie valve complete.Automatic turnover type just rain separator is that the turnover panel utilizing automatic turning carries out abandoned stream.There is no rainwater
Time, turnover panel is in abandoned stream pipe position, and after rainfall starts, first rain is walked along turnover panel through abandoned stream bank of tubes.Along with increasing of rainfall,
Turnover panel dependence gravity can be auto-reverse, and rainwater enters cistern along turnover panel through rainwater collection collector.When stopping rainfall certain time
End blocking relies on action of gravity automatically to set back, and waits rainfall next time.Jump weir formula rainwater shunting well is dependent on weir plate will
The device that early-stage rainwater separates.At the rainfall initial stage, the parabola jet that rainwater is flowed out by drain pipe is intercepted by weir plate, from abandoned stream
Pipe flow goes out；Along with the increasing of rainfall run-off, parabola jet crosses weir plate, is collected from water outlet pipe flow,
Thus reach the purpose of early-stage rainwater stream abandoning.Jump weir formula rainwater shunting well can not collect the rainwater of rainfall later stage little rainfall, and
When rainfall initial stage rainfall is bigger early-stage rainwater will extend over weir plate and cannot abandoned stream.
Chinese patent CN104594492A discloses a kind of rain water drainage system and control method, and this system includes that water quality is examined online
Survey instrument, Split-flow Control device, drainage tank, discharger, water quality type flow abandoning apparatus and cistern: water quality on-line detector is arranged
In drainage tank or on its inlet pipeline being connected with rainwater-collecting pipe network；Discharger and water quality type flow abandoning apparatus are arranged at
On drainage tank；Cistern is connected with drainage tank by water quality type flow abandoning apparatus；Split-flow Control device is according to water quality on-line detector
Testing result controls discharger and the opening and closing of water quality type flow abandoning apparatus.Its shortcoming one is water quality on-line checking instrument equipment and fortune
Row cost is higher；Two is the limitation of the examined instrument of the water quality index that can be detected by, and a kind of water quality on-line checking instrument is only
Can detection several fixing pollutant index few in number, for during other pollutant indexs then cannot on-line checking,
Do not adapt to the situation that collected Rainwater Quality is had higher requirements.
Current flow abandoning apparatus generally has the disadvantage in that
1, the abandoned stream amount of a rainfall should depend on the pollutant levels situation corresponding to the abandoned stream time, and pollutant levels feelings
Condition and the season residing for this rainfall, rainfall intensity, the persistent period and and the interval natural law of last rainfall all have certain
Dependency, i.e. required abandoned stream amount or abandoned stream time is the change with above each factor and changes, be the amount of a change.Mesh
Front Split-flow Control device is when determining abandoned stream amount or abandoned stream time, it is impossible to the impact of the above each factor of reflection comprehensively, causes rain
The abandoned stream amount science not to the utmost at water initial stage.
2, the control device that automatic flow abandoning is capable of for some, need more in order to the electrical equipment monitoring, detecting or
Automatic water quality detection instrument carries out information gathering and detection to rain fall, water quality condition, by the feedback of monitoring element
Determine abandoned stream amount.On the one hand this mode can be greatly increased rainwater and collect expense and the operating cost of facility, on the other hand deposits
Be easily damaged at electrical equipment, the life-span shorter so that a whole set of rainwater collects the shortcoming that dies down of stability of facility.
3, general Split-flow Control system can not be from time, rainfall raininess, the time of the duration of rainfall, this fall residing for this rainfall
Rain and rain time last time interval etc. reflection the rainfall runoff impact on water quality, and not can determine that collected rainwater every more
Add the water quality index become more meticulous.
Additionally, general weather station can real-time monitor current weather condition, it is possible to obtain relevant meteorological data in time.
But current flow abandoning apparatus does not all account for this resource of the data acquired in applicating atmosphere station, it is impossible to accomplish resource-sharing.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of variable early-stage rainwater stream abandoning control system,
Control method and construction method.
In order to reach above-mentioned purpose, the present invention adopts the following technical scheme that
A kind of variable early-stage rainwater stream abandoning control system, including meteorological reception system, controller and flow abandoning apparatus；Described meteorology
Reception system is by the weather forecast received and real-time meteorological data transmission extremely described controller；Described controller is according to described sky
Gas forecast and described meteorological data, determine that each corresponding pollutant levels of collected rainwater are satisfied by the abandoned stream time point required,
And control described flow abandoning apparatus described abandoned stream time point stop abandoned stream, start to collect rainwater.
Utilize meteorological reception system weather forecast and real-time meteorological data can be transferred directly to controller, decrease abandoned stream
Device is individually equipped with sharing of the cost of rain fall monitor, beneficially data resource.Controller is according to affecting pollutant levels
Each factor between dependency relation determine the abandoned stream time, each correlative factor affecting rainwater pollution substrate concentration can be reacted comprehensively,
Both can guarantee that the water quality of collected rainwater, and the abundant collection of rainwater can have been realized again so that abandoned stream amount or the determination of abandoned stream time point
More science.
Described controller is PLC or single-chip microcomputer or microprogram control unit.
Described meteorological reception system is that the meteorology receiving described weather forecast and meteorological real time data from meteorological data management center connects
Receipts system.
Described meteorological reception system, including client, GPRS cat.Having meteorological data to receive software in client, this meteorology connects
Receipts system can be bought from meteorological department or Hydrology department.
Described meteorological data includes rainfall, rainfall intensity and lasting rain time, the time of two rainfalls monitored in real time
Interval etc..Owing to being the meteorological data that obtains of professional equipment, therefore acquired meteorological data much sooner and accurately, and becomes
This is cheap.
According to fitting empirical formula, described controller determines that abandoned stream time point, described fitting empirical formula embody residing for this rainfall
Period, rainfall interval natural law, rainfall intensity, the time of the duration of rainfall, rainfall early-stage rainwater runoff in pollutant levels change
Mutual relation between situation and the corresponding pollutant levels of t, described fitting empirical formula is according to the many plays on this ground
The each key element of rainfall (period, rainfall residing for rainfall are spaced natural law, rainfall intensity, the time of the duration of rainfall etc.) and the institute of correspondence
The rainfall runoff water sample gathered after testing, data statistics etc. analyze, drawn by mathematical method matching.
Described fitting empirical formula isWherein, CtiDense in rainfall runoff i-th kind of pollutant index t
Degree；kiFor characterizing the composite factor coefficient that certain pollutant index changes with rainfall intensity, charge for remittance underlying surface qualitative change, it is
The empirical coefficient drawn according to existing experimental data statistical analysis, different rainfall intensities and different charge for remittance underlying surfaces pair
Answer different kiValue size；T is the time of the duration of rainfall after forming runoff；C0iIt it is certain pollutant index in rainfall runoff
Initial concentration, and C0i=aix+bi-1, can by the Rainfall Runoff initial concentration repeatedly surveyed with between corresponding rainfall
Number sets up correlation analysis every other day, draws equation of linear regression, and x is two rainfall interval natural law, aiFor adding up this period of gained
Certain pollutant index average odd-numbered day concentration change value in rainfall runoff, at a of a periodiIt is worth constant, a of different periodsiValue
Difference, bi-1For recording concentration value after single game rainfall last time.During use, these fitting empirical formula and relevant parameter need input
To Programmable Logic Controller, by programming make controller realize according to meteorology receive system receive from weather station described weather forecast and
Meteorological real time data carries out the selection to formula and empirical coefficient.
Described fitting empirical formula is according to rainfall different period residing in 1 year, statistics, matching sample detecting institute respectively
Obtain each pollutant achievement data and draw.
Described fitting empirical formula divides different rainfall intensity and persistent period to experience for certain pollutant index place stage rainfall
Coefficient kiCarry out induction and conclusion, set up kiThe corresponding empirical equation changing with rainfall intensity and persistent period and changing, in using
The method inserted determines a certain pollutant index k in a certain periodiValue.
One or more pollutant indexs set by water quality demand of collected rainwater according to described corresponding pollutant index.
Described abandoned stream time point is the shortest time that all described corresponding pollutant index concentration is satisfied by that related concentrations requires.
The related concentrations of described corresponding pollutant index requires to adjust the difference of water quality demand according to later stage rainwater resources utilization
Whole.
Described abandoned stream time point can be adjusted by described controller in real time according to later stage collection rain and rainfall pollutant situation of change
Whole.
Described flow abandoning apparatus is mainly controllable machinery flow abandoning apparatus, drives abandoned stream pipeline valve to close by controller, institute
State controller and carry out corresponding on-off action at described abandoned stream time point control flow abandoning apparatus.
The electric supply installation of described flow abandoning apparatus includes solar panels, storage battery power supply, 110V-220V alternating current power supply.
A kind of variable early-stage rainwater stream abandoning control method, comprises the following steps:
Step 1: the weather rainfall forecast received and meteorological rainfall data are transmitted to controller by meteorological reception system；
Step 2: described controller is according to the period residing for this rainfall and the interval natural law of rainfall last time and described weather
The rainfall duration of rainfall forecast and the real-time rainfall intensity of meteorological rainfall data reflection, combine the above-mentioned each factor of reflection from time different
Carve the fitting empirical formula of pollutant levels situation of change in rainfall runoff, determine the abandoned stream that satisfied corresponding pollutant levels require
Time point；
Step 3: when described meteorological data shows that the time of the duration of rainfall arrives described abandoned stream time point, described controller controls to abandon
Stream device carries out corresponding closed action, stops abandoned stream, starts to collect rainwater.
The building method of a kind of variable early-stage rainwater stream abandoning control system, comprises the following steps:
Step 1: in collection region, rain place, utilize regionality daily rainfall rule for many years that rainfall is carried out Time segments division；
Step 2: the rainfall to each period in described collection rain place carries out water sampling, and the rainfall play that each period gathers is not
Less than setting play, the water sample that every place gathers is no less than setting value；
Step 3: according to experimental determination, determine the major pollutants in the rainwater of described region, set up t in runoff process
Each pollutant index concentration CtiThis pollutant index concentration C in runoff time initial with its rainfall0iFitting empirical formula.At the beginning of foundation
These pollutant levels C in beginning runoff0iAnd rainfall interval natural law x, average odd-numbered day concentration change value aiFor statistics and stage single game fall
Concentration value b is added up after raini-1Empirical equation.Set up fitting empirical formulaWherein C0i=aix+bi-1, and really
The degree of fitting protecting each described fitting empirical formula meets corresponding requirements.kiFor characterizing certain pollutant index with rainfall intensity, charge for remittance
Underlying surface qualitative change and the composite factor coefficient that changes, be the experience system drawn according to existing field data statistical analysis
The corresponding different k of number, different rainfall intensities and different charge for remittance underlying surfacesiValue size.T is that the rainfall after forming runoff continues
Time.
Step 4: fitting empirical formula and the relevant parameter of each pollutant of each period are inputted the Programmable Logic Controllers such as PLC；
Step 5: for described major pollutants, under conditions of meeting later stage different quality basic demand, sets the abandoned stream time
Point is satisfied by the abandoned stream time point required for each described each corresponding pollutant levels, simultaneously can be according to later stage rainwater resources utilization feelings
Condition and the correction of pollutant scour law are summed up, and are adjusted the abandoned stream time in real time by described PLC；
Step 6:PLC Programmable Logic Controller utilizes the information such as the rainfall of meteorological reception system reception, raininess, the time of the duration of rainfall,
Control flow abandoning apparatus at described abandoned stream time point and stop abandoned stream, start rainwater-collecting.
The invention has the beneficial effects as follows:
1) daily rainfall for many years is added up, and carry out Time segments division, overcome Various Seasonal, early-stage rainwater is abandoned by the period
Stream uses the single shortcoming abandoning the water yield, and it is with rainfall play that the present invention can take into full account when collecting rainfall runoff that the initial stage abandons the water yield
The feature that time interval, rainfall intensity, rain time, different underlying surface change and change, more can reflect required early-stage rainwater
The practical situation of abandoned stream.
2) Ji Yuchang rainfall runoff in advance is carried out water analysis, can effectively reduce handling process and the expense of later stage rainwater,
Reduce overall operation expense simultaneously.
3) water-quality determination after Ji Yuchang real-time Rainfall Runoff concentration sample and later stage abandoned stream is combined, can be public to fitting empirical
Formula adjusts in real time, realizes the most dynamically controlling reaching to abandon the initial stage water yield.
Detailed description of the invention
The present invention is described in detail below.
Embodiment:
A kind of variable early-stage rainwater stream abandoning control system, including meteorological reception system, controller and flow abandoning apparatus；Described meteorology
Reception system is by the weather forecast received and real-time meteorological rainfall data transmission extremely described controller；Described controller is according to this
The interval natural law of secondary rainfall and rainfall last time, rainfall intensity, rainfall precontamination substrate concentration acquired in described weather forecast become
Mutual relation between the corresponding pollutant levels of t during change situation and rainfall runoff, determines and meets each described corresponding dirt
The abandoned stream time point of dye thing index concentration requirement, and control described flow abandoning apparatus in described abandoned stream time point stopping abandoned stream, beginning
Collect rainwater.
Flow abandoning apparatus is mainly controllable machinery flow abandoning apparatus, drives abandoned stream pipeline valve to close by controlling device, described
Controller controls flow abandoning apparatus at described abandoned stream time point and carries out corresponding on-off action.
A kind of early-stage rainwater stream abandoning system constituting method, it is characterised in that:
1) time period is set by programmable device, according to the time period residing for the different set single rainfall of rainfall intensity；
2) the rainfall data etc. received according to pollutant situation, meteorological reception system in gathering ground character, rainfall runoff, can compile
The control equipment of journey automatically sets the parameter value drafting in empirical equation；
3) determine collection rainfall runoff place early-stage rainwater major pollutants for test, substantially want meeting later stage different quality
Under conditions of asking, set abandoned stream time point and be satisfied by, as all corresponding pollutant levels, the shortest time value that respective concentration requires,
Can lead to according to the change of the change of later stage rainfall runoff each major pollutants index concentration or rainfall runoff resource utilization simultaneously
Cross programmable control equipment the abandoned stream time is adjusted in real time, realize the most dynamically controlling reaching the initial stage is abandoned the water yield
System；
4) by drafting empirical equation, to embody rainfall interval natural law, rainfall intensity, persistent period dense with pollutant in rainfall runoff
The dependency of degree change, wherein rainfall intensity and the time of the duration of rainfall receives device by meteorology and is determined it, utilize PLC
By controlling abandoned stream equipment, rainfall interval natural law is judged automatically Deng controller, the abandoned stream time is carried out Collaborative Control.With
Prior art is compared, the present invention can take into full account when rainfall runoff is collected the initial stage abandon the water yield be with rainfall play time interval,
The feature that rainfall intensity, rain time, different underlying surface change and change, more can reflect required early-stage rainwater runoff abandoned stream
Practical situation, and can because of ground, because of time, the change of rain fall or water pollutant concentration set the abandoned stream time in real time, more
Accurately insure that water quality meets the demand of more many condition, it is achieved the clean utilization of rainfall runoff resource.
Pollutant levels situation of change in rainfall runoff is studied, according to the difference of land surface condition, watershed is drawn
It is divided into greenery patches, roofing and road (including footpath and square etc.).Main in laboratory determines region early-stage rainwater
Pollutant, such as total suspended solid granule (TSS), COD (COD), total phosphorus (TP), total organic carbon (TC)
Deng.
Clean type Basin Rainfall runoff is harvested field and carries out water sampling, and at experimental determination main pollutant consistence, utilize
Many plays detect data statistic analysis in a large number can draw the time dependent rule of pollutant levels in rainwater.
Described determine that time period and parameter determination method are as follows:
Determine region, rainfall runoff collection place, utilize regionality daily rainfall rule for many years that rainfall is carried out Time segments division.
The initial rainfall runoff of collection territory, rain belt each period is carried out water sampling.More than 5 typical cases rainfall is measured for each period
Runoff, for Ji Yuchang every rainfall sampling early-stage rainwater runoff more than 10, and determines region initial stage rain at laboratory
Major pollutants in water runoff, such as total suspended solid granule (TSS), COD (COD), total phosphorus (TP), always
Organic carbon (TC) etc..
Set up each pollutant levels C of t in runoff processtiPollutant levels C in runoff time initial with it0iIndex experience public
Formula and its coefficient of determination Ri 2。
Coefficient of determination R according to the empirical equation set upi 2Judge pollutant C in rainfall runofftiWith its initial concentration C0iRelation
The quality of degree of fitting, works as Ri 2When >=0.80, it is believed that empirical equation fitting degree is preferable, and empirical equation can be used, and otherwise should carry out
More water sample detection, obtains more testing data data and is fitted empirical equation, until the data obtained are full
Foot matching coefficient of determination Ri 2Till >=0.80 requires.
Above-mentioned fitting empirical formula isWherein C0iFor the concentration in certain initial rainfall runoff of pollutant index,
Unit mg/L；CtiFor certain pollutant index in the concentration of rainfall runoff t, unit mg/L；kiFor characterizing certain pollutant
Composite factor coefficient (unit: the min that index changes with rainfall intensity, charge for remittance underlying surface qualitative change-1), it is according to
The empirical coefficient that some experimental data statistical analysis draw, different rainfall intensities and different charge for remittance underlying surface correspondences are different
KiValue size.T is the time of the duration of rainfall after forming runoff, unit: min.
Many rainfall runoff sampling interval duration of single period are determined, determine single hourly precipitation interval and initial runoff
In the relation of pollutant levels, matching once linear regression equation C0i=aix+bi-1, wherein x is interval natural law, aiFor certain
Plant pollutant indicator-specific statistics average odd-numbered day concentration change value, bi-1For recording concentration after certain pollutant index single game last time rainfall
Value.
According to the requirement to water quality of the later stage rainwater utilization, determine major pollutants, set during main early-stage rainwater stream abandoning the most dirty
Dye substrate concentration, thus programmable control equipment will utilize above-mentioned fitting empirical formula to determine the rational abandoned stream of each major pollutants
Time, and compare, select the time bigger for t to be automatically stopped abandoned stream, start rainwater is harvested.
Rainfall runoff sample frequency is second level or minute level.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.To enforcement
The multiple amendment of example will be apparent from for those skilled in the art, and generic principles defined herein is permissible
Without departing from the spirit or scope of the present invention, realize in other embodiments, the part not being described in detail, for
Prior art, does not repeats at this.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is intended to
Meet the widest scope consistent with principles disclosed herein and feature.
Claims (10)
1. a variable early-stage rainwater stream abandoning control system, it is characterised in that: include meteorological reception system, controller and abandoned stream
Device；Described meteorological reception system will receive weather forecast and the transmission of real-time meteorological data to described controller；Described control
Device determines each corresponding pollutant levels of collected rainwater according to rainfall interval natural law and described weather forecast and described meteorological data
Be satisfied by require abandoned stream time point, and control described flow abandoning apparatus described abandoned stream time point stop abandoned stream, start to collect rain
Water.
One the most according to claim 1 variable early-stage rainwater stream abandoning control system, it is characterised in that: described meteorology connects
Receipts system, can receive described weather rainfall forecast and meteorological real time data from weather station, and described meteorological real time data includes in real time
The persistent period of rainfall, rainfall intensity and the rainfall of monitoring.
One the most according to claim 1 variable early-stage rainwater stream abandoning control system, it is characterised in that: described controller
Determine that abandoned stream time point, described fitting empirical formula embody between the period residing for this rainfall, rainfall according to fitting empirical formula
Every other day during number, rainfall intensity, the time of the duration of rainfall, rainfall precontamination substrate concentration situation of change and rainfall runoff during t
Carving the mutual relation between corresponding pollutant levels, described fitting empirical formula is to gather water sample according to the rainfall runoff on this ground
Through test in laboratory, statistical analysis detection data are drawn by matching.
One the most according to claim 3 variable early-stage rainwater stream abandoning control system, it is characterised in that: described matching warp
Testing formula isWherein: CtiConcentration in rainfall runoff i-th kind of pollutant index t；kiFor characterizing certain
The composite factor coefficient that pollutant index changes with rainfall intensity, charge for remittance underlying surface qualitative change, is according to existing experiment
The corresponding different k of the empirical coefficient that data statistical analysis draws, different rainfall intensities and different charge for remittance underlying surfacesiValue is big
Little；T is the time of the duration of rainfall after forming runoff；C0iIt is the initial concentration of certain pollutant index in rainfall runoff, and
C0i=aix+bi-1, x is two rainfall interval natural law, aiFor certain pollutant index in this period rainfall runoff of statistics gained
Average odd-numbered day concentration change value, at a of a periodiIt is worth constant, a of different periodsiValue difference, bi-1For single game rainfall last time
Rear record concentration value.
5. according to the variable early-stage rainwater stream abandoning control system of the one described in claim 3 or 4, it is characterised in that: described plan
Closing empirical equation is the different period residing in 1 year according to rainfall, and statistics, matching sample detecting gained respectively pollute respectively
Thing achievement data and draw.
6. according to the one variable early-stage rainwater stream abandoning control system described in claim 1 or 2 or 3, it is characterised in that: institute
One or more pollutant indexs set by water quality demand of collected rainfall runoff, institute according to stating corresponding pollutant index
Stating abandoned stream time point is the shortest time that all corresponding pollutant levels are satisfied by that respective concentration requires.
One the most according to claim 6 variable early-stage rainwater stream abandoning control system, it is characterised in that: corresponding pollutant
Related concentrations require according to later stage rainwater resources utilization, the difference of water quality demand is changed, described abandoned stream time point according to after
Phase rainwater resources utilization situation can be adjusted in real time by described controller.
One the most according to claim 1 variable early-stage rainwater stream abandoning control system, it is characterised in that: described abandoned stream fills
Being set to machinery flow abandoning apparatus, drive abandoned stream pipeline valve in flow abandoning apparatus to close by controller, described controller is abandoned described
Stream time point controls flow abandoning apparatus and carries out corresponding on-off action.
9. a variable early-stage rainwater stream abandoning control method, it is characterised in that comprise the following steps:
Step 1: meteorological reception system by the weather forecast received and meteorological real-time Data Transmission to controller；
Step 2: described controller is according to the period residing for this rainfall and the interval natural law of rainfall last time and described weather
The rainfall duration of rainfall forecast and the real-time rainfall intensity of meteorological rainfall data reflection, in conjunction with reflecting in above-mentioned each factor and runoff
The fitting empirical formula of pollutant levels situation of change the most in the same time, determines the abandoned stream time that satisfied corresponding pollutant levels require
Point；
Step 3: when described meteorological data shows that the time of the duration of rainfall arrives described abandoned stream time point, described controller controls to abandon
Stream device carries out corresponding closed action, stops abandoned stream, starts to collect rainwater.
10. the construction method of a variable early-stage rainwater stream abandoning control system, it is characterised in that comprise the following steps:
Step 1: in collection region, rain place, utilize regionality daily rainfall rule for many years that rainfall is carried out Time segments division；
Step 2: the rainfall runoff of each period in described collection rain place is carried out water sampling, the rainfall field that each period gathers
The secondary setting play that is not less than, the water sample that every place gathers is no less than setting value；
Step 3: detect according to laboratory experiment, determine the major pollutants in the rainfall runoff of described region, set up rainfall runoff
During each pollutant levels C of ttiThese pollutant levels C in runoff time initial with its rainfall0iFitting empirical formula, and
Guarantee that the degree of fitting of each described fitting empirical formula meets corresponding requirements；
Step 4: by fitting empirical formula and the relevant parameter input controller of each pollutant of each period；
Step 5: for described major pollutants, under conditions of meeting later stage different quality basic demand, sets the abandoned stream time
Point is satisfied by the shortest time required for each described main pollutant consistence, passes through according to later stage rainwater resources utilization situation simultaneously
The abandoned stream time can be adjusted by described PLC in real time；
Step 6: controller utilizes meteorological reception system to determine the rainfall of this rainfall, rainfall intensity and the time of the duration of rainfall,
And control flow abandoning apparatus stopping abandoned stream at described abandoned stream time point, start rainfall runoff and collect.
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| CN107368623A (en) * | 2017-06-06 | 2017-11-21 | 西安建筑科技大学 | A kind of pool volume of regulating and storing based on runoff pollution control determines method |
| CN108959193A (en) * | 2018-06-28 | 2018-12-07 | 北京建筑大学 | The determination method and device of dependable rainfall |
| CN110018530A (en) * | 2019-04-24 | 2019-07-16 | 中国水利水电科学研究院 | Rainfall dip measuring device |
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