CN108362356A - The method and system of analysis conduit rain dirt hybrid junction distribution - Google Patents
The method and system of analysis conduit rain dirt hybrid junction distribution Download PDFInfo
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- CN108362356A CN108362356A CN201810072763.5A CN201810072763A CN108362356A CN 108362356 A CN108362356 A CN 108362356A CN 201810072763 A CN201810072763 A CN 201810072763A CN 108362356 A CN108362356 A CN 108362356A
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- Prior art keywords
- hybrid junction
- liquid level
- pipeline
- rain
- pipeline section
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
Abstract
The present invention relates to a kind of method and system of analysis conduit rain dirt hybrid junction distribution, wherein method includes：S1, pipeline are grouped and install liquid level gauge；S2, screening test Well Water Level data；S3, it is pre- judge pipeline section whether rain dirt hybrid junction；S4, judge whether hybrid junction judges hybrid junction position to pipeline section if hybrid junction.This method in inspection shaft by being arranged liquid level gauge, it is long-term to collect liquid level data, in conjunction with hydraulic calculation and analysis and big data analysis, obtain in sewage conduct whether the present situation of hybrid junction rain waterpipe is distributed with provincial characteristics, and, also pass through liquid level data, data are handled, judge to whether there is rain dirt hybrid junction phenomenon in sewage network between pipeline section by water force outflow and obtains the distribution of hybrid junction pipeline section, by it is a kind of it is more economical it is safer in a manner of judge rain dirt hybrid junction specific location, and renovate for subsequent pipeline and data support be provided.
Description
Technical field
The present invention relates to investigation rain dirt hybrid junction technology, more particularly to method and be that a kind of analysis conduit rain dirt hybrid junction is distributed
System.
Background technology
With the development of economy, the gradually in-depth of urbanization, urban population steeply rise, and the quantity of wastewater effluent in city is increasingly
Increase, water quality type water shortage caused by facing demand of the economic development urban infrastructure, water environment pollution and city dweller's life
The pressure, especially rain dirt hybrid junction problem such as the decline of bioplasm amount, rainwater largely enters sewerage during causing to rain, and causes sewage
Pumping plant and sewage plant can not receive and handle and arrange to river, and river water quality is caused to be deteriorated, for newly built and improved drainpipe
, there is sewage conduct in net and the phenomenon that storm sewer misconnection disorderly connects happens occasionally, and causes rainwater to access sewage conduct, in rainfall
Period, tube pump factory can not receive the amount of being filled with water, sewage to enter water body by overflow port, and water pollution is caused to destroy the ecology in city
Environment；Cause water pollution even it is temporary black smelly, cause river obstinate, in addition endanger in river regulation create it is aquatic
State.Therefore, pipeline rain dirt hybrid junction is obtained, the certainty that foundation is current is provided for transformation.
Currently, the common methods in drainage pipeline networks for investigating rain dirt hybrid junction, which are artificial investigation and CCTV, detects (drainpipe
Road TV detection)：
Artificial investigation is to enter the direct inspection record of big-diameter pipeline by personnel, and artificial the shortcomings that investigating method is draining
Situation is complicated in pipeline, and there are certain density toxic and harmful gas, may threaten to the safety and health of staff.
For the unapproachable pipeline of personnel, CCTV detections can be used.CCTV detecting systems are made of three parts, i.e. master control
Device manipulates cable frame, the robot crawling device with pick-up lens, and main controller is mounted on crawl device, and operator passes through main controller
Forward speed and direction of the crawl device in pipeline are controlled, and controls camera and passes the video image inside pipeline by cable
It is defeated on main controller display screen, operator can real-time monitoring tubular road internal state, while original picture record storage being got off, is done
Further analysis.After completing the field process of CCTV, the coding of defect of pipeline is carried out according to the video data of detection and is grabbed
Take defect picture, write examining report, and handle acording to the requirement of user CCTV image datas, provide videotape or
CD achieves, and instructs following pipeline rehabilitation work.The shortcomings that CCTV is detected is equipment costliness, and operating process is complex.
Invention content
The purpose of the present invention is to provide a kind of method and system of analysis conduit rain dirt hybrid junction distribution, by sewage pipe
Liquid level gauge is installed in the inspection shaft in net, calculating is screened, handled and analyzed to the liquid level data of acquisition, with a kind of more economical
Safer mode judges Storm Sewer Network hybrid junction to the specific location of sewage network, and renovates for subsequent pipeline and provide data
It supports.
To solve the above-mentioned problems, including following the present invention provides a kind of method of analysis conduit rain dirt hybrid junction distribution
Several steps：
S1, pipeline are grouped and install liquid level gauge；
S2, screening test Well Water Level data；
S3, it is pre- judge pipeline section whether rain dirt hybrid junction；
S4, judge whether hybrid junction judges hybrid junction position to pipeline section if hybrid junction.
Preferably, in step sl, each branch pipe in sewage network is divided into one group of pipeline, the upstream of every group of pipeline
Inspection shaft number is denoted as i, and inspection shaft number in downstream is denoted as i+1, liquid level is installed respectively in several inspection shafts on every group of pipeline
Meter.
Preferably, in step s 2, inspection shaft waterlevel data in sewage network when screening continuous more days fine days respectively, respectively
Inspection shaft waterlevel data in sewage network when screening repeatedly has the rainy day.
Preferably, in step s3, inspection shaft waterlevel data H in sewage network when comparing the fine day screenedIt is fineAnd rain
It when sewage network in inspection shaft waterlevel data HRainIf HRainCompared to HIt is fineAmplitude of variation very little, then it is pre- to judge that rain dirt is not present in pipeline section
Hybrid junction；If HRainSignificantly greater than HIt is fine, then judging pipeline section in advance, there are rain dirt hybrid junctions.
Preferably, in step s 4, liquid level difference, △ H are calculated in the inspection shaft at same pipeline section both endsFine dayIt is same pipeline section
Liquid level difference when the inspection shaft fine day of both ends in the same time, △ HRainy dayLiquid level difference when being the same pipeline section both ends inspection shaft rainy day in the same time,
By comparing △ HFine dayWith △ HRainy daySize, as △ HFine dayWith △ HRainy dayWhen variation tendency is similar or amplitude of variation very little, then pipeline section
Between be not present rain dirt hybrid junction phenomenon；As △ HFine dayWith △ HRainy dayWhen variation tendency or very big amplitude of variation, especially specific
Rainy spell section △ HFine dayWith △ HRainy dayThere are when notable difference, illustrate to be likely that there are rain dirt hybrid junction phenomenon between pipeline section for variation.
Preferably, in step s 4, calculating the liquid level at same pipeline section both ends in continuous time each time point sewage network of section
Poor Δ Hi, Δ Hi=Hi-Hi+1；
The liquid level of inspection shaft i-1, i, i+1 are denoted as Hi-1、Hi、Hi+1, using inspection shaft i and i+1 as the pipe of upstream and downstream inspection shaft
Duan Liuliang is denoted as Qi, liquid level difference is denoted as Δ Hi=Hi-Hi+1, by taking inspection shaft i as an example, T1、T2The liquid level at moment is denoted as HI, 1、HI, 2, with
This analogizes；
Only consider frictional head loss, and ignores local head loss in pipeline, pipeline upstream and downstream liquid level difference Δ HiIt is as follows
It calculates：
In formula, λ --- friction factor of head loss, tabling look-up can obtain；
L --- length of pipe section, m；
D --- pipeline section caliber, mm；
V --- pipe section flow rate, m/s；
G --- acceleration of gravity, 9.8m/s2。
ΔHi--- pipe ends liquid level difference
Δ t --- duration
It can thus be concluded that pipeline upstream and downstream liquid level difference Δ HiWith flow Q in pipelineiBetween relationship be：
For same pipeline section, pipeline upstream and downstream liquid level difference Δ HiWith flow Q in pipelineiIt is square proportional, then
The total flow of pipeline section is proportional to the product summation of liquid level difference and time interval in a period of time：
QiT∝∑ΔHiΔt (4)
In formula, QiTFor the total flow of i sections of pipes whithin a period of time
ΔHiThe pipeline section both ends liquid level difference for being i sections of pipes in the Δ t periods
Δ t is the period
Metastable level is generally remained in the case of no Storm Sewer Network hybrid junction for sewage network, it will not
Large change is generated in a short time；When there are rain dirt hybrid junction, once to during rainfall, rainwater enters sewage conduct, exists
The pipeline total flow of hybrid junction will significantly increase, and according to formula (4), the inspection well yield in rain dirt hybrid junction downstream increases, then can make
The Δ H of the inspection shaft at rain dirt hybrid junction pipeline section both endsiIncrease, if Δ HiThen there are rain dirt hybrid junctions for the pipeline section for increase, if Δ HiHardly
Become the then pipeline section and rain dirt hybrid junction is not present.
Preferably, carrying out each pipeline section in subsystem to the single subsystem (pipe-pump system/pipe factory system) in drainage system
Hybrid junction is analyzed, and the total flow of bus dump is
In formula, QTFor the total flow of bus dump
N is branch pipe quantity, and N is more than or equal to 0
Δ Q is the flow incrementss that bus dump removes that branch pipe becomes a mandarin, mixed with the presence or absence of rain dirt on bus dump for reflecting
The case where connecing,
It is obtained according to formula 4 and formula 5
In formula, △ H are the liquid level difference in each period water in-out port of bus dump
By above-mentioned calculation and analysis method, calculating fine day, rainy day respectively selects period corresponding Δ QIt is fineWith Δ QRain, will
The data of acquisition are compared, as Δ QIt is fineWith Δ QRainOf substantially equal, then rain dirt hybrid junction is not present in the pipeline, as Δ QRainSignificantly greater than
ΔQIt is fine, then there are rain dirt hybrid junctions for the pipeline section.
The present invention also provides a kind of system of analysis conduit rain dirt hybrid junction distribution, including sewage network, the sewage networks
Several branch sewers including trunk sewer and the connection trunk sewer, several branch sewers connect with the trunk sewer
Logical, several inspection shafts are arranged in interval on the branch sewer, and liquid level gauge is equipped in each inspection shaft.
Preferably, the liquid level gauge includes host equipment and antenna, the well in the inspection shaft is arranged in the host equipment
On wall；
The outside ground of the inspection shaft is equipped with a pit-hole, and the antenna is arranged in the pit-hole, the pit-hole
Bottom is connected to by opening up a through-hole with the inspection shaft, and the connector of one, the antenna penetrates the inspection from the through-hole
In well；
The connector of the antenna is electrically connected with the host equipment, the host equipment also with an external platform radio
It connects, the data in the inspection shaft of the host equipment upload can be shown on the platform.
Preferably, the host equipment is horizontally set on the borehole wall of the inspection shaft, the cable of the liquid level gauge from its
Sound end measures and does a label at 1.5m, and the lower surface of the label and the host equipment is in the same horizontal line.
Preferably, the upper surface of the antenna maintains an equal level with ground.
Compared with prior art, there are following technique effects by the present invention：
The present invention provides a kind of method and system of analysis conduit rain dirt hybrid junction distribution, by the way that liquid level is arranged in inspection shaft
Meter, collects liquid level data for a long time, in conjunction with hydraulic calculation and analysis and big data analysis, obtain in sewage conduct whether hybrid junction rain
The present situation of pipeline is distributed with provincial characteristics, moreover, also being handled data by liquid level data, is calculated and is flowed by potamometer
It measures to judge to whether there is rain dirt hybrid junction phenomenon in sewage network between pipeline section and obtain the distribution of hybrid junction pipeline section, with a kind of more economical
Safer mode judges rain dirt hybrid junction specific location, and renovates for subsequent pipeline and provide data support.
Description of the drawings
Fig. 1 is a kind of flow chart of the method for analysis conduit rain dirt hybrid junction distribution of the present invention；
Figure 1A is a kind of flow chart of embodiment of this method；
Figure 1B is the flow chart of another embodiment of this method；
Fig. 2 be the present invention it is a kind of can in implementation sewage pipeline section structural schematic diagram；
Fig. 3 is that one kind of the present invention can be in implementation without rain dirt hybrid junction pipeline section both ends inspection shaft level condition schematic diagram；
Fig. 4 is that one kind of the present invention can be in implementation without rain dirt hybrid junction pipeline section both ends inspection shaft liquid level tendency chart；
Fig. 5 is that one kind of the present invention can be in implementation without rain dirt hybrid junction pipeline section both ends inspection shaft liquid level difference trend chart；
Fig. 6 is that one kind of the present invention can implementation moderate rain dirt hybrid junction pipeline section both ends inspection shaft level condition schematic diagram；
Fig. 7 is that one kind of the present invention can implementation moderate rain dirt hybrid junction pipeline section both ends inspection shaft liquid level difference trend chart；
Fig. 8 is the vertical face figure for the system that analysis conduit rain dirt hybrid junction is distributed in a kind of embodiment of the present invention；
Fig. 9 is the plan view for the system that analysis conduit rain dirt hybrid junction is distributed in a kind of embodiment of the present invention；
Figure 10 is the system construction figure that analysis conduit rain dirt hybrid junction is distributed in a kind of embodiment of the present invention；
Figure 11 is a kind of embodiment of the system moderate rain dirt hybrid junction of analysis conduit rain dirt hybrid junction of the present invention distribution.
Specific implementation mode
The method and system that analysis conduit rain dirt hybrid junction provided by the invention is distributed are carried out below with reference to Fig. 1 to Figure 11
Detailed description, be optional embodiment of the present invention, it is believed that those skilled in the art do not change spirit of that invention with
In the range of content, can it be modified and be polished.
The purpose of the present invention is judge in sewage network whether hybrid junction rain grid, sewage network includes main pipe and connection
Several branch sewers of the trunk sewer, several branch sewers are connected to trunk sewer, are spaced on each branch sewer
Several inspection shafts are set, on Main Analysis branch pipe of the present invention somewhere whether hybrid junction rain grid.Referring to FIG. 1, the present invention carries
For a kind of method of analysis conduit rain dirt hybrid junction distribution, including following steps：
S1, pipeline are grouped and install liquid level gauge；
In step sl, each branch pipe in sewage network is divided into one group of pipeline, adjacent upstream on every group of pipeline
Inspection shaft number is denoted as i, and downstream line number is denoted as i+1, liquid level gauge is installed respectively in the inspection shaft on every group of pipeline.
S2, screening test Well Water Level data；
In step s 2, inspection shaft liquid level data when choosing continuous more days fine days in sewage network (is measured using liquid level
Amount water level) and handled, it is desirable that level curve data smoothing after processing, liquid level data are credible；When screening repeatedly has the rainy day
Inspection shaft liquid level data in sewage network is simultaneously handled, it is desirable that level curve data smoothing after processing, liquid level data are credible.
S3, it is pre- judge pipeline section whether rain dirt hybrid junction；
S4, judge whether hybrid junction judges hybrid junction position to pipeline section if hybrid junction.
A is please referred to Fig.1, as a kind of embodiment, in step s3, is examined in sewage network when comparing the fine day screened
Look into Well Water Level data HIt is fineWith inspection shaft waterlevel data H in sewage network when the rainy dayRainIf HRainCompared to HIt is fineAmplitude of variation very little, then in advance
Judge that rain dirt hybrid junction is not present in pipeline section；If HRainSignificantly greater than HIt is fine, then judging pipeline section in advance, there are rain dirt hybrid junctions.
As a kind of embodiment, in step s 4, liquid level difference, △ H are calculated in the inspection shaft at same pipeline section both endsFine dayIt is
Liquid level difference when same pipeline section both ends inspection shaft fine day in the same time, △ HRainy dayWhen being the same pipeline section both ends inspection shaft rainy day in the same time
Liquid level difference, pass through compare △ HFine dayWith △ HRainy daySize, as △ HFine dayWith △ HRainy dayVariation tendency is similar or amplitude of variation very little
When, then rain dirt hybrid junction phenomenon is not present between pipeline section；As △ HFine dayWith △ HRainy dayWhen variation tendency or very big amplitude of variation, especially
In specific rainy spell section △ HFine dayWith △ HRainy dayVariation is existing there are when notable difference, illustrating to be likely that there are rain dirt between pipeline section
As.
As another embodiment, in step s 4, according to fig. 2, calculate in continuous time each time point sewage network of section
The liquid level difference Δ H at same pipeline section both endsi, Δ Hi=Hi-Hi+1；
The liquid level of inspection shaft i-1, i, i+1 are denoted as Hi-1、Hi、Hi+1, using inspection shaft i and i+1 as the pipe of upstream and downstream inspection shaft
Duan Liuliang is denoted as Qi, liquid level difference is denoted as Δ Hi=Hi-Hi+1, by taking inspection shaft i as an example, T1、T2The liquid level at moment is denoted as HI, 1、HI, 2, with
This analogizes；
Only consider frictional head loss, and ignores local head loss in pipeline, pipeline upstream and downstream liquid level difference Δ HiIt is as follows
It calculates：
In formula, λ --- friction factor of head loss, tabling look-up can obtain；
L --- length of pipe section, m；
D --- pipeline section caliber, mm；
V --- pipe section flow rate, m/s；
G --- acceleration of gravity, 9.8m/s2。
ΔHi--- pipe ends liquid level difference
Δ t --- duration
It can thus be concluded that pipeline upstream and downstream liquid level difference Δ HiWith flow Q in pipelineiBetween relationship be：
For same pipeline section, pipeline upstream and downstream liquid level difference Δ HiWith flow Q in pipelineiIt is square proportional, because
This replaces liquid level gauge also with flowmeter can judge that system connects the position in river, replace liquid level gauge according to flowmeter, please refer to Fig.1 B,
Then in step s3, it needs using the waterlevel data screened in step S2, sewage network when calculating fine day by waterpower formula
Middle inspection shaft data on flows QIt is fineWith inspection shaft data on flows Q in sewage network when the rainy dayRainIf QRainCompared to QIt is fineAmplitude of variation is small, then
It is pre- to judge that rain dirt hybrid junction is not present in pipeline section；If QRainSignificantly greater than QIt is fine, then judging pipeline section in advance, there are rain dirt hybrid junctions.In step s 4,
Same pipeline section both ends inspection shaft real-time traffic difference Δ Q when by comparing fine dayIt is fineSame pipeline section both ends inspection shaft is real-time when with fine day
Difference in flow Δ QRainSize, comparative analysis Δ QIt is fineWith Δ QRainSize, when the case where fine day or rainy day do not rain dirty hybrid junction
Under, the difference in flow amplitude of variation of the inspection shaft at pipeline section both ends is stable and does not have prodigious difference, if there are rain dirts between pipeline section
Hybrid junction phenomenon, then in the difference in flow Δ Q of rainy periods pipeline section both ends inspection shaftRainΔ Q can be significantly greater thanIt is fine, it is possible thereby to judge rain
Dirty hybrid junction position.
It can run through whether pipeline section has the phenomenon that hybrid junction by the way that color is arranged in external platform, that is, export rain dirt hybrid junction one
Zhang Tu, judge successively since pipe network upstream pipeline whether hybrid junction：If Δ QIt is fineWith Δ QRainIt is of substantially equal, then prove that the pipeline section does not have
There is hybrid junction, is shown as blue.If Δ QIt is fineWith Δ QRainIt differs greatly, then proving the pipeline section, there are hybrid junction phenomenons, shown in red,
And the liquid level difference at the pipeline section both ends after raining is restored to of substantially equal trend again.
As the third embodiment, for same pipeline section, pipeline upstream and downstream liquid level difference Δ HiWith flow Q in pipelinei's
Square proportional, then the total flow of pipeline section is proportional to the product summation of liquid level difference and time interval in a period of time：
QiT∝∑ΔHiΔt (4)
In formula, QiTFor the total flow of i sections of pipes whithin a period of time
ΔHiThe pipeline section both ends liquid level difference for being i sections of pipes in the Δ t periods
Δ t is the period
For sewage network, in the case of no rain pipe hybrid junction, daily flow is mainly related to economy and population, leads to
It is often maintained at metastable level, large change will not be generated in a short time, meets design and operation demand, and when there are rain
Dirty hybrid junction, once to during rainfall, rainwater largely enters sewage conduct, there are the pipeline total flow of hybrid junction will be apparently higher than it is daily
Design requirement range；According to formula (4), the inspection well yield in rain dirt hybrid junction downstream increases, then can make rain dirt hybrid junction pipeline section two
The Δ H of the inspection shaft at endiIncrease, to judge whether rain dirt hybrid junction.
Each pipeline section hybrid junction point in subsystem is carried out to the single subsystem (pipe-pump system/pipe factory system) in drainage system
Analysis, the total flow of bus dump are
In formula, QTFor the total flow of bus dump, bus dump is exactly the pipeline being connected with each branch pipe, each branch pipe
The pipeline that sewage collects,
N is branch pipe quantity, and N is more than or equal to 0,
Δ Q is flow incrementss of the bus dump except branch pipe such as stream, mixed with the presence or absence of rain dirt on bus dump for reacting
The case where connecing,
It is obtained according to formula 4 and formula 5
In formula, △ H are the liquid level difference in each period water in-out port of bus dump
By above-mentioned calculation and analysis method, calculating fine day, rainy day respectively selects period corresponding Δ QIt is fineWith Δ QRain, will
The data of acquisition are compared, as Δ QIt is fineWith Δ QRainOf substantially equal, then rain dirt hybrid junction is not present in the pipeline, as Δ QIt is fineWith Δ QRainDifference
Very not big, then the pipeline section there is a possibility that rain dirt hybrid junction is big, then there may be rain dirt hybrid junctions for the pipeline section, and difference is bigger, can
Energy property is bigger.In addition combined with various analysis result data profiles versus, the data sample that all weathers obtain is more, judges more accurate
Really.
In the case where fine day or rainy day do not rain dirty hybrid junction, the difference in flow of the inspection shaft at same pipeline section both ends changes
Amplitude stabilization and prodigious difference is not had, if there are rain dirt hybrid junction phenomenons between the pipeline section, at rainy periods pipeline section both ends
The difference in flow Δ Q of inspection shaftRainΔ Q can be significantly greater thanIt is fine, it is possible thereby to judge rain dirt hybrid junction position.
As a kind of embodiment, for sewage network, in the case of no rain pipe hybrid junction, pipeline section both ends inspection shaft
Liquid level is shown in that Fig. 3, the liquid level variation tendency of inspection shaft and the liquid level difference variation tendency of pipeline section both ends inspection shaft are shown in Fig. 4 and Fig. 5, can
Know, liquid level difference, #i between #i-1 and #i and the liquid level difference between #i+1 are substantially at stable state, are not in prodigious offset.
In the case of rainy water pipe hybrid junction, the liquid level of pipeline section both ends inspection shaft is shown in Fig. 3, the liquid level of inspection shaft when fine day
Variation tendency and the liquid level difference variation tendency of pipeline section both ends inspection shaft are shown in Fig. 4 and Fig. 5, in the rainy day, since flow increases, according to
Above-mentioned flow it is found that the liquid level of downstream inspection shaft can increase, is shown in Fig. 6 with Relationship between Liquid Level formula.According to Fig.6, #i+1 is in
Downstream at rain dirt hybrid junction, when raining, Hi-1With HiIt is basically unchanged, the H in downstream at rain dirt hybrid junctioni+1Since flow increases, according to
H known to flow and the relation formula of liquid leveli+1It increases, therefore liquid level difference variation tendency Δ H of three inspection shafts when rainingi-1's
Fluctuating range is significantly less than Δ HiFluctuating range see Fig. 7, deducibility HiWith Hi+1Between there are rain dirt hybrid junction situations.
Fig. 8-Figure 10 is please referred to, corresponds to the method for analysis conduit rain dirt hybrid junction distribution, the present invention also provides a kind of analyses
The system of pipeline rain dirt hybrid junction distribution, this system includes sewage network, and the sewage network includes main pipe 1 and the connection main pipe
1 several branch pipes 2, several branch pipes 2 are connected to the main pipe 1 respectively, and several inspection shafts 3 are arranged in interval on the branch pipe 2,
It is equipped with liquid level gauge 4 in each inspection shaft 3.
This system be for judge sewage network whether hybrid junction rain grid, if hybrid junction rain grid, such as Figure 11 institutes
Show, then certain pipeline section of certain branch pipe of sewage network is connected with certain pipeline section of Storm Sewer Network, and therefore, the present invention is being checked by setting
The whether rainy dirty hybrid junction of sewage conduct is analyzed and judged to liquid level gauge in well, and concrete analysis and judgment method are shown in the above method.
The present invention is not limited the type of liquid level gauge 4, as a kind of embodiment, the preferred radar level gauge of the present embodiment,
The liquid level gauge 4 includes host equipment and antenna, and the host equipment is arranged on the borehole wall of the inspection shaft 3；
The outside ground of the inspection shaft 3 is equipped with a pit-hole 5, and the bottom of the pit-hole 5 is by opening up a through-hole 6 and institute
The connection of inspection shaft 3 is stated, antenna is arranged in the pit-hole 5, and the connector that the antenna is one penetrates the inspection from the through-hole 6
It looks into well 3；
The connector of the antenna is electrically connected with the host equipment, the host equipment also with an external platform radio
It connects, the data in the inspection shaft 3 of the host equipment upload can be shown on the platform.
Further, the cable of the liquid level gauge from its sound end measure 1.5m from do a label, the label with it is described
The lower surface of host equipment is in the same horizontal line.
Further, the host equipment is horizontally set on the borehole wall of the inspection shaft 3, the upper surface of the antenna with
Ground maintain an equal level, this purpose be with the fluid parallel in pipeline, can more accurately measure the liquid level of sewage in pipeline.
Further, 1 is please referred to Fig.1, in sewage webmaster, sanitary sewage or business sewage etc. are gone forward side by side by the collection of branch pipe 2
Enter main pipe 1, the sewage that main pipe 1 is collected is drawn water outer row by water pump 7.
The installation of liquid level gauge prepares
1. the spray painting whether having for identifying is checked on well lid, be confirmed whether it is the point if contacting watching focus personnel without if
Position；
2. opening well lid with pick after confirming, waited for 2 minutes after opening well lid, observes whether situation in well meets installation
Condition.
Mounting condition：
A. the borehole wall is firm, can be used to load-bearing terminal device, and expansion bolt is not easy to loosen；
B. need in well gas odor in acceptable range；
C. if there is ladder in well, confirm that ladder will not jamming equipment radar measured data；
D. the depth from well head to shaft bottom is greater than 2m；
E. confirm that water level can install equipment in well, terminal installation site to water surface distance is at least more than 60cm；
F. installation can be carried out.
3. meet mounting condition, computer is opened, field strength is tested with Solarnumen Comdebug, finds antenna and most preferably install
Point；
4. the installation of pair terminal nearby landmark, situation is taken pictures in well, should be to taking pictures for mark building
Different directions respectively clap one；
5. using tape measure well head diameter.
Installation steps
1. the extraction device from packing case confirms E ＆ SP completely and without damage；
2. full socket by host equipment etc. is clogged with paper, prevent when mounted dregs fall and block socket；
3. in the pre-installed position of antenna, close to walling crib and antenna length can and range (avoiding metal walling crib),
The cylindrical pit-hole of 100mm (diameter) X 100mm (depth) is beaten downwards on road surface with tool,
It is communicated in through-hole of the pit-hole bottom centre position cutting diameter not less than 22mm not well, to put
Set antenna；
4. taking out antenna, one connector (not remove protective case) of antenna is penetrated from through-hole in well,
It is positioned over antenna is smooth in pit-hole simultaneously；
5. being tamped the space of pit-hole internal antenna top periphery and lower part with embedding material, the surface of antenna is sure to and ground
Maintain an equal level, and clear up the extra embedding material of antenna surface, when landfill is careful not to damage antenna connector；
6. according to expansion bolt specification Choice of Bits, in the position drilling tool apart from well head more than 30cm according to installation
The hole bit distribution situation punching of holder；
7. the fixed expansion bolt in each mounting hole is installed equipment supporter and fastened, holder need to be with borehole wall level；
8. a position punching fixed expansion hook is chosen outside rack mounting apertures 10cm, for fixing liquid level gauge；
9. installing host equipment, and fasten, host equipment also needs to use level meter calibrated horizontal；
10. placing a wheal from liquid level gauge cable since one end of popping one's head in is measured 1.5m, then liquid level gauge is fixed on
On expansion hook hitch, need to ensure the lower surface (wave transparent plate) of the mark and host equipment on liquid level gauge cable in same horizontal line position
It sets；
11. if the probe of liquid level gauge is submerged in water, need to pop one's head in promotion placement in air；
12. taking out the protective case of antenna connector, antenna, liquid level gauge are inserted into host equipment corresponding position；
13. antenna cables are placed on inside equipment supporter, prevent cable suspension from plug being caused to loosen；
14. measuring the water surface in well with survey tool then and on platform to check end to the distance of equipment lower end
The data that end uploads are compared, and confirm that field data is correct, and the data of upload may have very much,
Compare the data accuracy acquired after clock synchronization；
(15. liquid level gauge is put into water)；
16. coating underwater paint at jack interface；
17. installation terminates, cover well lid, try not to allow well lid hole face equipment of uncapping above, finishing tool, further
Secondary confirmation terminal whether normal communication (well lid starts at least to see 2 groups of data from the cover).
Disclosed above is only the specific embodiment of the application, and however, this application is not limited to this, any this field
Technical staff can think variation, should all fall in the protection domain of the application.
Claims (11)
1. a kind of method of analysis conduit rain dirt hybrid junction distribution, which is characterized in that including following steps：
S1, pipeline are grouped and install liquid level gauge；
S2, screening test Well Water Level data；
S3, it is pre- judge pipeline section whether rain dirt hybrid junction；
S4, judge whether hybrid junction judges hybrid junction position to pipeline section if hybrid junction.
2. the method for analysis conduit rain dirt hybrid junction distribution as described in claim 1, which is characterized in that in step sl, will be dirty
Each branch pipe in grid is divided into one group of pipeline, and the upstream inspection shaft number of every group of pipeline is denoted as i, downstream inspection shaft number
It is denoted as i+1, liquid level gauge is installed respectively in several inspection shafts on every group of pipeline.
3. the method for analysis conduit rain dirt hybrid junction distribution as claimed in claim 2, which is characterized in that in step s 2, respectively
Inspection shaft waterlevel data in sewage network when screening continuous more days fine days, is examined when screening repeatedly has the rainy day respectively in sewage network
Look into Well Water Level data.
4. the method for analysis conduit rain dirt hybrid junction distribution as claimed in claim 3, which is characterized in that in step s3, comparison
Inspection shaft waterlevel data H in sewage network when the fine day screenedIt is fineWith inspection shaft waterlevel data H in sewage network when the rainy dayRain,
If HRainCompared to HIt is fineAmplitude of variation very little, then it is pre- to judge that rain dirt hybrid junction is not present in pipeline section；If HRainSignificantly greater than HIt is fine, then judge pipeline section in advance
There are rain dirt hybrid junctions.
5. the method for analysis conduit rain dirt hybrid junction distribution as claimed in claim 3, which is characterized in that in step s 4, same
Liquid level difference, △ H are calculated in the inspection shaft at one pipeline section both endsFine dayLiquid level difference when being same pipeline section both ends inspection shaft fine day in the same time,
△HRainy dayLiquid level difference when being the same pipeline section both ends inspection shaft rainy day in the same time, by comparing △ HFine dayWith △ HRainy daySize, work as △
HFine dayWith △ HRainy dayWhen variation tendency is similar or amplitude of variation very little, then rain dirt hybrid junction phenomenon is not present between pipeline section；As △ HFine dayWith
△HRainy dayWhen variation tendency or very big amplitude of variation, illustrate that there are rain dirt hybrid junction phenomenons between pipeline section.
6. the method for analysis conduit rain dirt hybrid junction distribution as claimed in claim 3, which is characterized in that in step s 4, calculate
The liquid level difference Δ H at same pipeline section both ends in continuous time each time point sewage network of sectioni, Δ Hi=Hi-Hi+1；
The liquid level of inspection shaft i-1, i, i+1 are denoted as Hi-1、Hi、Hi+1, using inspection shaft i and i+1 as the pipeline flow of upstream and downstream inspection shaft
It is denoted as Qi, liquid level difference is denoted as Δ Hi=Hi-Hi+1, by taking inspection shaft i as an example, T1、T2The liquid level at moment is denoted as HI, 1、HI, 2, with such
It pushes away；
Only consider frictional head loss, and ignores local head loss in pipeline, pipeline upstream and downstream liquid level difference Δ HiIt is following to calculate：
In formula, λ --- friction factor of head loss, tabling look-up can obtain；
L --- length of pipe section, m；
D --- pipeline section caliber, mm；
V --- pipe section flow rate, m/s；
G --- acceleration of gravity, 9.8m/s2。
ΔHi--- pipe ends liquid level difference
Δ t --- duration
It can thus be concluded that pipeline upstream and downstream liquid level difference Δ HiWith flow Q in pipelineiBetween relationship be：
For same pipeline section, pipeline upstream and downstream liquid level difference Δ HiWith flow Q in pipelineiIt is square proportional, then one section
The total flow of pipeline section is proportional to the product summation of liquid level difference and time interval in time：
QiT∝∑ΔHiΔt (4)
In formula, QiTFor the total flow of i sections of pipes whithin a period of time
ΔHiThe pipeline section both ends liquid level difference for being i sections of pipes in the Δ t periods
Δ t is the period
Metastable level is generally remained in the case of no Storm Sewer Network hybrid junction for sewage network, it will not be short
Large change is generated in time；When there are rain dirt hybrid junction, once to during rainfall, rainwater enters sewage conduct, and there are hybrid junctions
Pipeline total flow will significantly increase, according to formula (4), the inspection well yield in rain dirt hybrid junction downstream increases, then can so that rain is dirty
The △ H of the inspection shaft at hybrid junction pipeline section both endsiIncrease, if Δ HiThen there are rain dirt hybrid junctions for the pipeline section for increase, if Δ HiIt is almost unchanged then
Rain dirt hybrid junction is not present in the pipeline section.
7. the method for analysis conduit rain dirt hybrid junction distribution as claimed in claim 6, which is characterized in that the list in drainage system
A subsystem (pipe-pump system/pipe factory system) carries out each pipeline section hybrid junction analysis, the total flow of bus dump in subsystem
In formula, QTFor the total flow of bus dump
N is branch pipe quantity, and N is more than or equal to 0
Δ Q is the flow incrementss that bus dump removes that branch pipe becomes a mandarin, for reflecting on bus dump with the presence or absence of rain dirt hybrid junction
Situation,
It is obtained according to formula 4 and formula 5
In formula, △ H are the liquid level difference in each period water in-out port of bus dump
By above-mentioned calculation and analysis method, calculating fine day, rainy day respectively selects period corresponding Δ QIt is fineWith Δ QRain, will obtain
Data compared, as Δ QIt is fineWith Δ QRainOf substantially equal, then rain dirt hybrid junction is not present in the pipeline, as Δ QRainSignificantly greater than Δ
QIt is fine, then there are rain dirt hybrid junctions for the pipeline section.
8. a kind of system of analysis conduit rain dirt hybrid junction distribution as described in claim 1 to 7 is any, which is characterized in that including
Sewage network, the sewage network include trunk sewer and connect several branch sewers of the trunk sewer, several dirts
Water branch pipe is connected to the trunk sewer, setting several inspection shafts in interval on the branch sewer, in each inspection shaft
Equipped with liquid level gauge.
9. the system of analysis conduit rain dirt hybrid junction distribution as claimed in claim 8, which is characterized in that the liquid level gauge includes master
Machine equipment and antenna, the host equipment are arranged on the borehole wall of the inspection shaft；
The outside ground of the inspection shaft is equipped with a pit-hole, and the antenna is arranged in the pit-hole, the bottom of the pit-hole
It is connected to the inspection shaft by opening up a through-hole, the connector that the antenna is one penetrates the inspection shaft from the through-hole
It is interior；
The connector of the antenna is electrically connected with the host equipment, and the host equipment is also wirelessly electrically connected with an external platform
It connects, the data in the inspection shaft of the host equipment upload can be shown on the platform.
10. the system of analysis conduit rain dirt hybrid junction distribution as claimed in claim 9, which is characterized in that the host equipment water
Flat to be arranged on the borehole wall of the inspection shaft, the cable of the liquid level gauge does a label from its sound end measurement 1.5m, described
The lower surface of label and the host equipment is in the same horizontal line.
11. the system of analysis conduit rain dirt hybrid junction distribution as claimed in claim 9, which is characterized in that the upper table of the antenna
Face maintains an equal level with ground.
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| CN115853093A (en) * | 2022-11-21 | 2023-03-28 | 合肥中科国禹智能工程有限公司 | Drainage pipe network dynamic detection method and system capable of identifying rain and sewage mixed connection |
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