CN107587586A - A kind of device and the flow control methods based on the device and anti-down irrigation method on pipeline - Google Patents
A kind of device and the flow control methods based on the device and anti-down irrigation method on pipeline Download PDFInfo
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Abstract
The invention discloses a kind of device and the flow control methods based on the device and anti-down irrigation method on pipeline, described device a whole set of can configure and carry out prefabricated, and its is simple in construction, save and build and equipment cost, be greatly reduced the input of labour.Described device can also realize remote control and monitoring, by monitoring the liquid level difference of upstream water body and downstream water in real time come the folding size of regulating gate, achievable biliquid bit traffic control or reverse-filling.The flow control methods are that the flow for flowing through the pipeline is calculated in the liquid level difference of the downstream water liquid level in the second well body of the upper water body fluid position and second liquid level gauge monitoring in the first well body monitored by first liquid level gauge, and the flow monitoring of water body can be achieved without reusing flowmeter.
Description
Technical field
The invention belongs to flow control and technical field of drainage, and in particular to a kind of device on pipeline and based on this
The flow control methods of device and anti-down irrigation method.
Background technology
Flow refers in the unit interval by the material quantity in a certain section, i.e. instantaneous delivery.In modern industrial production mistake
Cheng Zhong, flow are one of important procedure parameters, are the efficiency of weighing device and the important indicator of economy, be production operation and
The foundation of control, because in most of industrial productions, it is conventional to measure and control flow to determine the proportioning of material and consumption, it is real
Existing Automation of Manufacturing Process and optimized control；While in order to carry out business accounting, it is also necessary to know the medium total amount flowed through.Institute
So that measurement and the control of flow are to realize a vital task of industrial processes.
The species of flow-measuring method and instrument is various, and sorting technique is also a lot, and is directed to different application fields, right
Also different in the requirement of used flow-measuring method and instrument, i.e., every kind of flow-measuring method and instrument all have specifically
Applicability, also there is its limitation.
In water inlet and/or outlet pipeline system in the municipal sewerage engineering in China, control for the discharge of sewage into
For an important field of research, by the control to the discharge of sewage in pipe-line system, regulate and control at any time each in pipe-line system
Gate and associated component, the smooth discharge of water body is realized, avoid various flood and waterlogs caused by being discharged not in time because of rainwater excess
Evil.
In current pipe-line system, conventional flow controller is installs all kinds of flowmeters in pipeline, but it is faced
So complicated huge pipe-line system is, it is necessary to the quantity of the flowmeter of installation certainly will be quite a few, and the structure of most flowmeters
Complexity, it is bulky, install and debug more complicated, and be difficult to repair；Most of instrument and meter is only intended to the list of cleaning
Phase liquid, sewage and rainwater common in pipe-line system are not particularly suited for, may also have some solid suspensions etc.；Most pipes
The system of road of control in to(for) flow need not be especially accurate, if using to the more strict flowmeter of required precision, it is also inevitable
Cause procurement price high, invest larger, the appearance for the various problems such as operation and maintenance cost is higher.
Further, the applicable surface of existing volume control device is narrower, typically it is only capable of controlling use as flow, exploitation has
More multi-functional volume control device is that existing drainage system is badly in need of.
The content of the invention
In order to improve the deficiencies in the prior art, the invention provides a kind of device on pipeline and based on the device
Flow control methods and anti-down irrigation method, described device can be used for the flow that measurement flows through the pipeline, and described device may be used also
For reverse-filling, described device dexterously combines flow control and reverse-filling within one device, is especially suitable for existing
The demand of drainage system；The flow control methods can be accurately obtained the flow for flowing through pipeline, instead of flowmeter completely, its
With the advantages that easy to operate, cost is cheap.
The present invention provides following technical scheme：
A kind of device on pipeline, described device include the first well body, the second well body and gate；
First well body and the second well body are arranged on pipeline, and with the pipeline connection；The first well body position
In upstream, second well body is located at downstream pipe；
The gate locating is in the junction of the first well body and the second well body；
Described device also includes the first liquid level gauge being arranged in the first well body and the second liquid being arranged in the second well body
Position meter；
The first liquid level gauge, for detecting the liquid level of the upstream water body in first well body；
The second liquid level gauge, for detecting the liquid level of the downstream water in second well body.
According to the present invention, first well body is arranged on the pipeline parallel with the second well body.
According to the present invention, the first well body bottom level and the second well body bottom level are identical or different.
According to the present invention, described device also includes controller, the controller respectively with the first liquid level gauge, described
Two liquid level gauges connect with the signal strobe, for receiving the liquid level signal of first liquid level gauge and the second liquid level gauge monitoring,
And the aperture of the gate is controlled according to the liquid level signal.
According to the present invention, the gate is selected from least one of upper open type gate and bottom-open type gate.
According to the present invention, the type of drive of the gate can use it is electronic, surge or pneumatically.
The present invention also provides a kind of pipe-line system, and the pipe-line system includes the above-mentioned device being used in pipeline.
According to the present invention, the pipe-line system also includes pipeline, that is, sets the pipeline of first well body and the second well body.
The present invention also provides the purposes of said apparatus, its reverse-filling being used on pipeline.
Preferably, for cutting the reverse-filling on dirty pipe.
Preferably, the reverse-filling for being cut in shunting well on dirty pipe.
The present invention also provides the purposes of said apparatus, its flow control being used on pipeline.
Preferably, for cutting the flow control on dirty pipe.
Preferably, for cutting the flow control on dirty pipe in shunting well.
The present invention also provides a kind of double liquid level flow control methods on pipeline, and methods described is based on above-mentioned use
In the device on pipeline, methods described comprises the following steps：
1) the liquid level H of the upstream water body in the first well body is monitored1It is high with the liquid level of the downstream water in the second well body
Spend H2；
2) liquid level difference (H of the upstream water body in the first well body and the downstream water in the second well body is determined1-H2) and gate
Flow Qs of the aperture S with flowing through pipeline relational expression is as follows：
In formula,
S --- gatage (discharge area in gate) (m2)；
H1--- the liquid level (m) of the upstream water body of first liquid level gauge monitoring；
H2--- the liquid level (m) of the downstream water of second liquid level gauge monitoring；
σs--- flood coefficient；
G --- acceleration of gravity (m/s2)；
M --- the discharge coefficient of free overflow, it is relevant with the boundary condition such as pipeline；
σc--- side constriction coefficient, reflect the cross-direction shrinkage due to pipeline, reduce effective excessively stream width and increased office
Influence of portion's energy loss to discharge capacity；
Influence of the relative opening degree of μ --- the discharge coefficient of pipeline free discharge, reflection pipeline and gate to vent flow；
3) liquid level difference and the relational expression of the upstream water body based on monitoring and downstream water, passes through regulating gate aperture
To realize that the flow for the water body for flowing through pipeline controls.
According to the present invention, in the relational expression, σsTo flood coefficient, with liquid level difference (H1-H2) relevant, can be with table look-at
Obtain.
According to the present invention, in the relational expression, K is set coefficient, as liquid level difference (H1-H2) after determination, K is also to determine
Value.
According to the present invention, in the relational expression, the parameter determines coefficient correlation by tabling look-up, and when in use according to reality
Border situation is modified；Or the measured value according to reality, directly utilize relational expressionMiddle ratio
Example relation determines the set COEFFICIENT K of coefficient correlation, such as when front and rear liquid level difference determines, σsCan be tabled look-up acquisition；Civil engineering base
Plinth structure snd size, equipment installation dimension and the timing of position one, K is definite value；Therefore, by monitoring first liquid level gauge and second
Liquid level difference (the H of liquid level gauge1-H2) and gatage S, you can calculate the flow Q for flowing through pipeline.
According to the present invention, the flow that the double liquid level flow control methods are used for pipeline controls.
According to the present invention, the double liquid level flow control methods are used for the flow control for cutting dirty pipe.
According to the present invention, the double liquid level flow control methods are used in shunting well the flow control for cutting dirty pipe.
According to the present invention, the double liquid level flow control methods also comprise the following steps：
According to cutting the downstream line treatable maximum stream flow of institute that dirty pipe is connected or managing the downstream wastewater being connected with cutting a dirt
The treatable maximum stream flow setting flow Q1 of institute for the treatment of plant；
A) during fine day, when flowing through the flow for cutting dirty pipe less than setting flow Q1, gate is shown in a fully open operation, and dry flow sewage is complete
Portion, which flows into, to be cut in dirty pipe；
B) during the rainy day, judge that now rainfall is early-stage rainwater or middle and later periods rainwater；If early-stage rainwater, following steps are performed
Rapid b-1)；If middle and later periods rainwater, following step b-2 is performed)；
B-1) during early-stage rainwater, when flowing through the flow for cutting dirty pipe less than setting flow Q1, gate is shown in a fully open operation；
When flowing through the flow for cutting dirty pipe higher than setting flow Q1, the aperture of regulating gate, realize to flow into and cut dirty pipe reclaimed water
The accurate control of body；
B-2) during middle and later periods rainwater, gate is in full off state, and water body, which does not flow into, cuts dirty pipe.
In the present invention, described early-stage rainwater refers to that, containing a large amount of pollutants, water quality is not reaching to the water body of discharge standard,
To the rainwater to rain in lasting 5-30min when generally beginning to rain；Described middle and later periods rainwater refers to that water quality reaches discharge mark
Accurate water body.
The present invention also provides a kind of method of reverse-filling, and methods described is based on the above-mentioned device being used on pipeline；Institute
Anti-down irrigation method is stated to comprise the following steps：
1) the water body level value of the first well body and the second well body is monitored respectively by first liquid level gauge and second liquid level gauge, point
H is not designated as it1And H2；
2) the water body level value H monitored by first liquid level gauge1With the water body level value H of second liquid level gauge monitoring2Size
Judged：
Work as H1-H2More than zero or H2-H1During less than zero, gate is shown in a fully open operation, and the water body of the first well body flows to the second well
Body；
Work as H1-H2Equal to zero or H2-H1During equal to zero, the aperture of regulating gate to H1-H2More than zero or H2-H1Equal to zero, keep away
Exempt from the water body in the second well body to pour in down a chimney into the first well body；And
Work as H1-H2Less than zero or H2-H1During more than zero, gate is in full off state, avoids the water body in the second well body from pouring in down a chimney
Into the first well body.
Preferably, methods described is for cutting the reverse-filling on dirty pipe.
Preferably, methods described is the reverse-filling for being cut in shunting well on dirty pipe.
Beneficial effects of the present invention：
(1) device being used on pipeline of the invention can realize the control of piping flow, can also realize that pipeline is anti-down
The monitoring of filling, it a whole set of can configure and carry out prefabricated, and its is simple in construction, save and build and equipment cost, be greatly reduced labor
The input of power.
(2) device being used on pipeline of the invention can also realize remote control and monitoring, by monitoring first in real time
The liquid level difference of upstream water body in well body and the downstream water in the second well body carrys out the folding size of regulating gate, and biliquid can be achieved
Bit traffic controls or reverse-filling.
(3) the biliquid bit traffic being used on pipeline control of the invention is to be based on parallel arrangement of first well body in pipeline
With the second well body and be respectively arranged at first liquid level gauge and second liquid level gauge therein, pass through the first well that first liquid level gauge monitors
The liquid level difference of downstream water liquid level in second well body of internal upper water body fluid position and second liquid level gauge monitoring is calculated
The flow of the pipeline is flowed through, the flow monitoring of water body can be achieved without reusing flowmeter.First well body and
The design of two well bodies, can conveniently it overhaul, it is convenient that gate is installed and is more easily implemented the control of flow and the purpose of reverse-filling.
(4) the double liquid level flow control methods being used on pipeline of the invention are simple, easily operated, can also realize long-range
Control and monitoring, by monitoring the liquid level difference of double liquid level in real time come the folding size of regulating gate, are realized to water body in pipeline
Flow controls.
Brief description of the drawings
Fig. 1 is the front view of the device described in a preferred embodiment of the invention；Wherein, 1- upstreams, 2- first
Liquid level gauge, 3- second liquid level gauges, 5- downstream pipes, 6- gates.
Fig. 2 is the top view of the device described in a preferred embodiment of the invention；Wherein, the well bodies of 7- first；8- second
Well body.
Fig. 3 is the front view of the device described in a preferred embodiment of the invention；Wherein, 1- upstreams, 2- first
Liquid level gauge, 3- second liquid level gauges, 5- downstream pipes, 6- gates.
Fig. 4 is the top view of the device described in a preferred embodiment of the invention；Wherein, the well bodies of 7- first；8- second
Well body.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.Furthermore, it is to be understood that after described content of the invention has been read, this area skill
Art personnel can make various changes or modifications to the present invention, and these equivalent form of values equally fall within limited range of the present invention.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment provides a kind of device on pipeline, and described device includes the first well body
7th, the second well body 8 and gate 6；The gate 6 can be upper open type gate (as depicted in figs. 1 and 2) or bottom-open type lock
Door (as shown in Figure 3 and Figure 4)；
The well body 8 of first well body 7 and second is arranged on pipeline, and with the pipeline connection；First well body 7
Positioned at upstream 1, second well body 8 is located at downstream pipe 5；
The gate 6 is arranged at the junction of the first well body 7 and the second well body 8；
Described device also includes the first liquid level gauge 2 being arranged in the first well body 7 and be arranged in the second well body 8 second
Liquid level gauge 3；
The first liquid level gauge 2, for detecting the liquid level of the upstream water body in first well body 7；
The second liquid level gauge 3, for detecting the liquid level of the downstream water in second well body 8.
In a preferred embodiment of the present invention, the well body 8 of the first well body 7 and second is arranged at the pipe parallel
Lu Shang.
In a preferred embodiment of the present invention, the bottom level of the first well body 7 and the second well body 8 bottom level
It is identical or different.Concrete structure is as shown in figures 1 and 3.
In a preferred embodiment of the present invention, described device also includes controller (not shown), the controller
It is connected respectively with the first liquid level gauge 2, the second liquid level gauge 3 and the signal of the gate 6, for receiving first liquid level
The liquid level signal that meter 2 and second liquid level gauge 3 monitor, and according to the aperture of the liquid level signal control gate 6.
In a preferred embodiment of the present invention, the type of drive of the gate 6 can use it is electronic, surge or gas
It is dynamic.
Embodiment 2
The present embodiment provides a kind of pipe-line system, and the pipe-line system includes the dress being used in pipeline described in embodiment 1
Put.
In a preferred embodiment of the present invention, the pipe-line system also includes pipeline, that is, sets first well
The pipeline of body and the second well body.
In a preferred embodiment of the present invention, the pipeline is managed to cut dirt.
In a preferred embodiment of the present invention, described section of dirty pipe is to cut dirty pipe in shunting well.
Embodiment 3
The present embodiment provides a kind of double liquid level flow control methods on pipeline, and methods described is to be based on embodiment 1
The described device being used on pipeline, methods described comprise the following steps：
1) the liquid level H of the upstream water body in the first well body is monitored1It is high with the liquid level of the downstream water in the second well body
Spend H2；
2) liquid level difference (H of the upstream water body in the first well body and the downstream water in the second well body is determined1-H2) and gate
Flow Qs of the aperture S with flowing through pipeline relational expression is as follows：
In formula,
S --- gatage (discharge area in gate) (m2)；
H1--- the liquid level (m) of the upstream water body of first liquid level gauge monitoring；
H2--- the liquid level (m) of the downstream water of second liquid level gauge monitoring；
σs--- flood coefficient；
G --- acceleration of gravity (m/s2)；
M --- the discharge coefficient of free overflow, it is relevant with the boundary condition such as pipeline；
σc--- side constriction coefficient, reflect the cross-direction shrinkage due to pipeline, reduce effective excessively stream width and increased office
Influence of portion's energy loss to discharge capacity；
Influence of the relative opening degree of μ --- the discharge coefficient of pipeline free discharge, reflection pipeline and gate to vent flow；
3) liquid level difference and the relational expression of the upstream water body based on monitoring and downstream water, passes through regulating gate aperture
To realize that the flow for the water body for flowing through pipeline controls.
In a preferred embodiment of the present invention, in the relational expression, σsTo flood coefficient, with liquid level difference (H1-H2)
It is relevant, it can be obtained with table look-at.
In a preferred embodiment of the present invention, in the relational expression, K is set coefficient, as liquid level difference (H1-H2)
After it is determined that, K is also the value of determination.
In a preferred embodiment of the present invention, in the relational expression, the parameter determines phase relation by tabling look-up
Number, and be modified when in use according to actual conditions；Or the measured value according to reality, directly utilize relational expressionMiddle proportionate relationship determines the set COEFFICIENT K of coefficient correlation, such as when front and rear liquid level difference determines
When, σsCan be tabled look-up acquisition；Foundation of civil work structure snd size, equipment installation dimension and the timing of position one, K is definite value；Therefore,
By the liquid level difference (H for monitoring first liquid level gauge and second liquid level gauge1-H2) and gatage S, you can calculate and flow through pipeline
Flow Q.
In a preferred embodiment of the present invention, the double liquid level flow control methods are used for the flow control of pipeline
System.
In a preferred embodiment of the present invention, the double liquid level flow control methods are used for the flow control for cutting dirty pipe
System.
In a preferred embodiment of the present invention, the double liquid level flow control methods are used to cut dirty pipe in shunting well
Flow control.
Embodiment 4
The present embodiment provides a kind of double liquid level flow control methods, and the double liquid level flow control methods include embodiment 3
In step, and further comprise following steps：
According to cutting the downstream line treatable maximum stream flow of institute that dirty pipe is connected or managing the downstream wastewater being connected with cutting a dirt
The treatable maximum stream flow setting flow Q1 of institute for the treatment of plant；
A) during fine day, when flowing through the flow for cutting dirty pipe less than setting flow Q1, gate is shown in a fully open operation, and dry flow sewage is complete
Portion, which flows into, to be cut in dirty pipe；
B) during the rainy day, judge that now rainfall is early-stage rainwater or middle and later periods rainwater；If early-stage rainwater, following steps are performed
Rapid b-1)；If middle and later periods rainwater, following step b-2 is performed)；
B-1) during early-stage rainwater, when flowing through the flow for cutting dirty pipe less than setting flow Q1, gate is shown in a fully open operation；
When flowing through the flow for cutting dirty pipe higher than setting flow Q1, the aperture of regulating gate, realize to flow into and cut dirty pipe reclaimed water
The accurate control of body；
B-2) during middle and later periods rainwater, gate is in full off state, and water body, which does not flow into, cuts dirty pipe.
In the present invention, described early-stage rainwater refers to that, containing a large amount of pollutants, water quality is not reaching to the water body of discharge standard,
To the rainwater to rain in lasting 5-30min when generally beginning to rain；Described middle and later periods rainwater refers to that water quality reaches discharge mark
Accurate water body.
Embodiment 5
The present embodiment provides a kind of method of reverse-filling, and methods described is based on being used for described in embodiment 1 on pipeline
Device；The anti-down irrigation method comprises the following steps：
1) the water body level value of the first well body and the second well body is monitored respectively by first liquid level gauge and second liquid level gauge, point
H is not designated as it1And H2；
2) the water body level value H monitored by first liquid level gauge1With the water body level value H of second liquid level gauge monitoring2Size
Judged：
Work as H1-H2More than zero or H2-H1During less than zero, gate is shown in a fully open operation, and the water body of the first well body flows to the second well
Body；
Work as H1-H2Equal to zero or H2-H1During equal to zero, the aperture of regulating gate to H1-H2More than zero or H2-H1Equal to zero, keep away
Exempt from the water body in the second well body to pour in down a chimney into the first well body；And
Work as H1-H2Less than zero or H2-H1During more than zero, gate is in full off state, avoids the water body in the second well body from pouring in down a chimney
Into the first well body.
Preferably, methods described is for cutting the reverse-filling on dirty pipe.
Preferably, methods described is the reverse-filling for being cut in shunting well on dirty pipe.
In drainage procedure, if the water body liquid level that the water body liquid level occurred in the second well body is higher than in the first well body is high
Degree, water body can pour in down a chimney phenomenon in the pipeline, i.e. downstream water pours in upstream end, causes upstream water body to drain in time
And waterlogging occurs.In order to prevent the generation of this phenomenon, the present invention proposes a kind of anti-down irrigation method using double liquid level, in lock
Liquid level gauge is installed in the upstream end and downstream of door respectively, and the water body liquid level that gate upstream end and downstream are monitored by liquid level gauge is high
Spend to judge to flow through whether the water body of the pipeline can pour in down a chimney phenomenon.When the water body liquid level of upstream end is higher than downstream
During water body liquid level, water body relies on Action of Gravity Field, and downstream end is drained；When the water body liquid level of upstream end is less than downstream
Water body liquid level when, water body relies on Action of Gravity Field, upstream end drain, now need timely closed shutter, effectively prevent
Downstream water occur pours in down a chimney phenomenon.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above-mentioned embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., it should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. a kind of device on pipeline, it is characterised in that described device includes the first well body, the second well body and gate；
First well body and the second well body are arranged on pipeline, and with the pipeline connection；First well body is positioned at upper
Play pipe road, second well body are located at downstream pipe；
The gate locating is in the junction of the first well body and the second well body；
Described device also includes the first liquid level gauge being arranged in the first well body and the second liquid level gauge being arranged in the second well body；
The first liquid level gauge, for detecting the liquid level of the upstream water body in first well body；
The second liquid level gauge, for detecting the liquid level of the downstream water in second well body.
2. device according to claim 1, it is characterised in that first well body is arranged at described parallel with the second well body
On pipeline.
3. device according to claim 1 or 2, it is characterised in that described device also includes controller, the controller point
Be not connected with the first liquid level gauge, the second liquid level gauge and the signal strobe, for receive the first liquid level gauge and
The liquid level signal of second liquid level gauge monitoring, and according to the aperture of the liquid level signal control gate.
Preferably, the gate is selected from least one of upper open type gate and bottom-open type gate.
Preferably, the type of drive of the gate can use it is electronic, surge or pneumatically.
4. a kind of pipe-line system, it is characterised in that the pipe-line system includes being used to manage any one of claim 1-3
Device in road.
Preferably, the pipe-line system also includes pipeline, that is, sets the pipeline of first well body and the second well body.
5. the purposes of the device any one of claim 1-3, its reverse-filling being used on pipeline.
Preferably, for cutting the reverse-filling on dirty pipe.
Preferably, the reverse-filling for being cut in shunting well on dirty pipe.
6. the purposes of the device any one of claim 1-3, its flow control being used on pipeline.
Preferably, for cutting the flow control on dirty pipe.
Preferably, for cutting the flow control on dirty pipe in shunting well.
7. a kind of double liquid level flow control methods on pipeline, it is characterised in that methods described is to be based on claim 1-3
Any one of the device being used on pipeline, methods described comprises the following steps：
1) the liquid level H of the upstream water body in the first well body is monitored1With the liquid level H of the downstream water in the second well body2；
2) liquid level difference (H of the upstream water body in the first well body and the downstream water in the second well body is determined1-H2) and gatage S
The relational expression of flow Q with flowing through pipeline is as follows：
<mrow>
<mi>Q</mi>
<mo>=</mo>
<mi>K</mi>
<mo>&CenterDot;</mo>
<msub>
<mi>&sigma;</mi>
<mi>s</mi>
</msub>
<mo>&CenterDot;</mo>
<mi>S</mi>
<mo>&CenterDot;</mo>
<msqrt>
<mrow>
<mo>(</mo>
<msub>
<mi>H</mi>
<mn>1</mn>
</msub>
<mo>-</mo>
<msub>
<mi>H</mi>
<mn>2</mn>
</msub>
<mo>)</mo>
</mrow>
</msqrt>
</mrow>
In formula,
S --- gatage (discharge area in gate) (m2)；
H1--- the liquid level (m) of the upstream water body of first liquid level gauge monitoring；
H2--- the liquid level (m) of the downstream water of second liquid level gauge monitoring；
σs--- flood coefficient；
<mrow>
<mi>K</mi>
<mo>=</mo>
<msub>
<mi>&sigma;</mi>
<mi>c</mi>
</msub>
<mi>&mu;</mi>
<mi>m</mi>
<msqrt>
<mrow>
<mn>2</mn>
<mi>g</mi>
</mrow>
</msqrt>
<mo>;</mo>
</mrow>
G --- acceleration of gravity (m/s2)；
M --- the discharge coefficient of free overflow, it is relevant with the boundary condition such as pipeline；
σc--- side constriction coefficient, reflect the cross-direction shrinkage due to pipeline, reduce effective excessively stream width and increased local energy
Lose the influence to discharge capacity；
Influence of the relative opening degree of μ --- the discharge coefficient of pipeline free discharge, reflection pipeline and gate to vent flow；
3) liquid level difference and the relational expression of the upstream water body based on monitoring and downstream water, by regulating gate aperture come real
Now flow through the flow control of the water body of pipeline.
8. control method according to claim 7, it is characterised in that in the relational expression, σsTo flood coefficient, with liquid level difference
(H1-H2) relevant, it can be obtained with table look-at.
Preferably, in the relational expression, K is set coefficient, as liquid level difference (H1-H2) after determination, K also values to determine.
Preferably, in the relational expression, the parameter determines coefficient correlation by tabling look-up, and is entered when in use according to actual conditions
Row amendment；Or the measured value according to reality, directly utilize relational expressionMiddle proportionate relationship is come
The set COEFFICIENT K of coefficient correlation is determined, such as when front and rear liquid level difference determines, σsCan be tabled look-up acquisition；Foundation of civil work structure and
Size, equipment installation dimension and the timing of position one, K is definite value；Therefore, by monitoring first liquid level gauge and second liquid level gauge
Liquid level difference (H1-H2) and gatage S, you can calculate the flow Q for flowing through pipeline.
Preferably, the double liquid level flow control methods are used for the flow control of pipeline.
Preferably, the double liquid level flow control methods are used for the flow control for cutting dirty pipe.
Preferably, the double liquid level flow control methods are used in shunting well the flow control for cutting dirty pipe.
9. the control method according to claim 7 or 8, it is characterised in that the double liquid level flow control methods also include
Following steps：
According to cutting the downstream line treatable maximum stream flow of institute that dirty pipe is connected or dirty managing the downstream wastewater being connected processing with cutting
The treatable maximum stream flow setting flow Q1 of institute of factory；
A) during fine day, when flowing through the flow for cutting dirty pipe less than setting flow Q1, gate is shown in a fully open operation, and dry flow sewage all flows
Enter to cut in dirty pipe；
B) during the rainy day, judge that now rainfall is early-stage rainwater or middle and later periods rainwater；If early-stage rainwater, following step b- is performed
1)；If middle and later periods rainwater, following step b-2 is performed)；
B-1) during early-stage rainwater, when flowing through the flow for cutting dirty pipe less than setting flow Q1, gate is shown in a fully open operation；
When flowing through the flow for cutting dirty pipe higher than setting flow Q1, the aperture of regulating gate, realize to flow into and cut water body in dirty pipe
Accurate control；
B-2) during middle and later periods rainwater, gate is in full off state, and water body, which does not flow into, cuts dirty pipe.
10. a kind of method of reverse-filling, methods described is based on the dress being used on pipeline any one of claim 1-3
Put；The anti-down irrigation method comprises the following steps：
1) monitor the water body level value of the first well body and the second well body respectively by first liquid level gauge and second liquid level gauge, remember respectively
For H1And H2；
2) the water body level value H monitored by first liquid level gauge1With the water body level value H of second liquid level gauge monitoring2Size carry out
Judge：
Work as H1-H2More than zero or H2-H1During less than zero, gate is shown in a fully open operation, and the water body of the first well body flows to the second well body；
Work as H1-H2Equal to zero or H2-H1During equal to zero, the aperture of regulating gate to H1-H2More than zero or H2-H1Equal to zero, is avoided
Water body in two well bodies pours in down a chimney into the first well body；And
Work as H1-H2Less than zero or H2-H1During more than zero, gate is in full off state, avoids the water body in the second well body from pouring in down a chimney entrance
First well body.
Preferably, methods described is for cutting the reverse-filling on dirty pipe.
Preferably, methods described is the reverse-filling for being cut in shunting well on dirty pipe.
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| CN108362356A (en) * | 2018-01-25 | 2018-08-03 | 上海水顿智能科技有限公司 | The method and system of analysis conduit rain dirt hybrid junction distribution |
| CN110318455A (en) * | 2019-06-10 | 2019-10-11 | 环能科技股份有限公司 | A kind of constant flow water discharge control method and control system |
| CN110468948A (en) * | 2019-09-06 | 2019-11-19 | 中铁二院工程集团有限责任公司 | Deep tunnel drainage system pumping plant |
| CN116163386A (en) * | 2023-04-14 | 2023-05-26 | 江苏太湖云计算信息技术股份有限公司 | Method for regulating and accumulating rain and sewage pipe network in well |
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