CN108279632B - A kind of pumping plant wisdom draining Dispatching Control System - Google Patents
A kind of pumping plant wisdom draining Dispatching Control System Download PDFInfo
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- CN108279632B CN108279632B CN201810133284.XA CN201810133284A CN108279632B CN 108279632 B CN108279632 B CN 108279632B CN 201810133284 A CN201810133284 A CN 201810133284A CN 108279632 B CN108279632 B CN 108279632B
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- 238000005086 pumping Methods 0.000 title claims abstract description 132
- 239000007788 liquid Substances 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 136
- 238000005265 energy consumption Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 abstract description 6
- 239000010865 sewage Substances 0.000 description 20
- 238000011282 treatment Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005574 cross-species transmission Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012098 association analyses Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/16—Plc to applications
- G05B2219/163—Domotique, domestic, home control, automation, smart, intelligent house
Abstract
The invention discloses a kind of pumping plant wisdom to drain Dispatching Control System, its key points of the technical solution are that it is characterised in that it includes data detecting unit, mode selecting unit, scheduling unit and control unit；Data detecting unit is used to obtain the liquid level signal of intake pool and discharge bay in single pumping plant, in single pumping plant in the pressure signal of outlet pipe and single pumping plant outlet pipe flow signal；Multiple low layer mode interfaces are configured in mode selecting unit, the low layer mode interface is used to obtain the selection request of user；Control unit is configured as: establishing permanent liquid level mode corresponding with each low layer mode interface, constant voltage mode and current-limit mode, and the request of the selection based on user enters in corresponding permanent liquid level mode, constant voltage mode and current-limit mode.Each pumping plant can carry out mutual cooperation scheduling, to avoid the unordered draining between upstream and downstream pumping plant, so that the draining order of whole pumping plant is effectively increased, to improve drainage efficiency.
Description
Technical field
The present invention relates to control scheduling field, in particular to a kind of pumping plant wisdom drains Dispatching Control System.
Background technique
In urban sewage treatment system, drainage pumping plant, which is not only served as, is transported to each sewage treatment for entire municipal sewage
The heavy burden of factory also has the function such as sewage disinfection treatments and drainage pipeline networks model for water quantity allocation such as grid filtration, buffer pool Anaerobic Treatment
Energy.
Its main task is to collect the sewage of all types of user discharge, after sewage lifting to certain height, passes through weight
Force flow pushes next pumping plant to next pumping plant, or by pressure, the last one pumping plant arranges sewage to sewage treatment plant.
As a result, when daily draining is dispatched, it is easy to produce the unordered draining of each pumping plant, influences the work effect of pumping drainage
Rate, or since scheduling is uneven, lead to local pumping plant sewage spill-over.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of pumping plant wisdom draining scheduling controlling system
System has and ensures pumping plant stable operation, improve pumping drainage efficiency, energy saving, extend equipment life, prevent sewage spill-over
Feature.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of pumping plant wisdom drains Dispatching Control System, including data detecting unit, mode selecting unit, scheduling unit and
Control unit, data detecting unit, mode selecting unit and scheduling unit are connected with control unit respectively；
The data detecting unit is for obtaining the liquid level signal of intake pool and discharge bay in single pumping plant, in single pumping plant
The flow signal of outlet pipe in the pressure signal of outlet pipe and single pumping plant；
Multiple low layer mode interfaces are configured in the mode selecting unit, the low layer mode interface is for obtaining user
Selection request；
Described control unit is configured as:
Permanent liquid level mode corresponding with each low layer mode interface, constant voltage mode and current-limit mode are established, and based on use
The selection request at family enters in corresponding permanent liquid level mode, constant voltage mode and current-limit mode；Wherein,
In permanent liquid level mode, control unit is based on liquid level signal to control in the pumping plant more by the instruction of scheduling unit
Water pump start and stop are with by the constant liquid level of intake pool and discharge bay to preset range；
In constant voltage mode, control unit is based on pressure signal to control more water in the pumping plant by the instruction of scheduling unit
Start and stop are pumped so that the pressure of outlet pipe is constant to preset range；
In current-limit mode, control unit is based on flow signal to control more water in the pumping plant by the instruction of scheduling unit
Start and stop are pumped so that the flow of outlet pipe is constant to preset range.
Preferably, in permanent liquid level mode, described control unit is configured as:
Set the draining high liquid level of intake pool and the water inlet low liquid level of discharge bay；
Set the termination of pumping low liquid level of intake pool and the termination of pumping high liquid level of discharge bay；
Liquid level signal based on acquisition, judges whether the liquid level of intake pool reaches the draining high liquid level or discharge bay of setting
Liquid level whether reach the water inlet low liquid level of setting；
If so, controlling more water pumps by the instruction of scheduling unit starts First water pump by default boot sequence, go forward side by side
One step judges whether the water level of intake pool continues to rise or the water level of discharge bay continues to decline, if so, by default boot sequence
Start second water pump, until more water pumps are all turned on.
Preferably, in permanent liquid level mode, control unit is also configured to
Judge whether the water level of intake pool drops to termination of pumping low liquid level or the water level of discharge bay rises to termination of pumping high liquid level；
If so, controlling more water pumps by the instruction of scheduling unit shuts down First water pump by default closing sequence, go forward side by side
One step judges whether the water level of intake pool continues decline or the water level of discharge bay continues to rise, if so, by default closing sequence
Second water pump is shut down, until more water pumps are all closed.
Preferably, in constant voltage mode, described control unit is configured as:
Set the draining low-pressure and termination of pumping high pressure of outlet pipe；
Pressure signal based on acquisition, judges whether the pressure of outlet pipe reaches the draining low-pressure of setting；
If so, controlling more water pumps by the instruction of scheduling unit starts First water pump by default boot sequence, go forward side by side
One step judges whether the pressure of outlet pipe continues to decline, if so, starting second water pump by default boot sequence, until more
Water pump is all turned on.
Preferably, in constant voltage mode, control unit is also configured to
Judge whether the pressure of outlet pipe reaches the termination of pumping high pressure of setting；
If so, controlling more water pumps by the instruction of scheduling unit shuts down First water pump by default closing sequence, go forward side by side
One step judges whether the pressure of outlet pipe continues to rise, if so, second water pump is shut down by default closing sequence, until more
Water pump is all closed.
Preferably, in current-limit mode, described control unit is configured as:
Flow signal based on acquisition, judges whether the flow of outlet pipe is less than preset flow；
If so, the pressure signal based on acquisition, further judge the pressure of outlet pipe whether reach setting draining it is low
Pressure；
If so, controlling more water pumps by the instruction of scheduling unit starts First water pump by default boot sequence, go forward side by side
One step judges whether outlet pipe flow continues to decline, then starts second water pump by default boot sequence, until more water pumps are complete
It opens in portion.
Preferably, described control unit is also configured to
Judge whether outlet pipe flow is greater than preset flow；
If so, controlling more water pumps by the instruction of scheduling unit shuts down First water pump by default closing sequence, go forward side by side
One step judges whether the flow of outlet pipe continues to rise, if so, second water pump is shut down by default closing sequence, until more
Water pump is all closed.
Preferably, multiple middle layer mode interfaces are also configured in the mode selecting unit, the middle layer mode interface is used
In the selection request for obtaining user；
Described control unit is also configured to
Energy-saving mode corresponding with each middle layer mode interface, long life mode and high effective model are established, and is based on user
Selection request enter in corresponding energy-saving mode, long life mode and high effective model；Wherein,
In energy-saving mode, control unit is single by scheduling based on selected permanent liquid level mode, constant voltage mode or current-limit mode
Each pump variable frequency operation in the instruction control pumping plant of member, and the energy efficiency coefficient of every water pump is obtained preferentially to open energy efficiency coefficient
High water pump；
In long life mode, control unit is controlled the runing time phase of each water pump in pumping plant by the instruction of scheduling unit
Together；
In high effective model, control unit is transported by whole water pumps in the instruction control pumping plant of scheduling unit with power frequency or overclocking
Row.
Preferably, the energy efficiency coefficient=time starts rate * energy consumption performance index * equipment quality index, wherein
The time rate of starting=actual run time/(actual run time+downtime)；
Energy consumption shows index=actual production * rated power/practical electricity/nominal flow rate；
Equipment quality index=equipment theoretical depreciation expense/(equipment theoretical depreciation expense+equipment maintenance takes).
Preferably, the data detecting unit, which is also used to obtain locally to catchment in single pumping plant, receives the flow signal of pipe；
High-rise mode interface is also configured in the mode selecting unit, the high level mode interface is for obtaining user's
Selection request；
Described control unit is also configured to
Establish automatic mode corresponding with high-rise mode interface, and the request of the selection based on user enter it is corresponding oneself
In dynamic model formula；Wherein,
In automatic mode, control unit receives the flow signal of pipe based on locally catchmenting in the pumping plant, and judges the pumping plant
Middle local, which is catchmented, to be received the flow signal of pipe and whether is less than preset a reference value, if so, controlling the pumping plant enters the energy conservation
In mode or long life mode；Conversely, being entered in the high effective model if it is not, then controlling the pumping plant.
In conclusion the present invention having the beneficial effect that in contrast to the prior art
Select permanent liquid level mode, constant voltage mode or current-limit mode within the system by user, to control pumping plant with
It works under corresponding mode, so that each pumping plant can carry out mutual cooperation scheduling, to avoid between upstream and downstream pumping plant
Unordered draining and sewage spill-over event to ensure pumping plant stable operation effectively increase the draining order of whole pumping plant, with
Improve drainage efficiency, energy saving, extend equipment life etc..
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other features of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the connection schematic diagram of pumping plant, host computer, slave computer in technical solution of the present invention；
Fig. 2 is the system block diagram that scheduling system is controlled in technical solution of the present invention.
Specific embodiment
In order to preferably technical solution of the present invention be made clearly to show, the present invention is made into one with reference to the accompanying drawing
Walk explanation.
Embodiment one
A kind of pumping plant wisdom drains Dispatching Control System, including data detecting unit, mode selecting unit, scheduling unit and
Control unit, data detecting unit, mode selecting unit and scheduling unit are connected with control unit respectively.
Each pumping plant includes that sequentially connected water inlet pipe, local catchment receive pipe, intake pool (or pump pond), water pump, discharge bay
(or high-order well), outlet pipe.Locally catchmenting, it is effective to collect sewage that local pipe network collects and be transmitted in intake pool to receive.Water pump
It is arranged in pump house, water pump is driven by motor.Wherein, on the intake pool of pumping plant, pump pond and discharge bay or high-order well
It is provided with liquid level sensor, liquid level sensor is used to export the liquid level signal of intake pool, pump pond and discharge bay (or high-order well)；
Pressure sensor and flow sensor are provided on the outlet pipe of pumping plant, pressure sensor is used to export the pressure signal of outlet pipe
And flow signal；The local of pumping plant, which catchments to receive, is provided with flow sensor on pipe, and the flow sensor is for exporting local catchments
Receive the flow signal of pipe.It is worth noting that scheduling unit can be according to water pump when outlet pipe does not configure flow sensor
The data such as runing time, frequency, liquid level carry out drain discharge calculating according to hydraulic model；It receives pipe when locally catchmenting and does not configure
When flow sensor, scheduling unit can carry out local catchment according to pipe net leakage rate and receive pipe according to upstream and downstream pumping plant data on flows
Flow rate calculation.
The scheduling unit is deployed in host computer, for obtaining external data and management instruction, and by big to history
The association analysis of data and real time data calculates each pumping station operation index, and makes dispatch command.
Data detecting unit in this system is for obtaining intake pool in single pumping plant (or pump pond) and discharge bay (or a high position
Well) liquid level signal, in single pumping plant in the pressure signal of outlet pipe and single pumping plant outlet pipe flow signal.
Multiple low layer mode interfaces are configured in mode selecting unit, the selection that low layer mode interface is used to obtain user is asked
It asks；Low layer mode interface can connect HMI touch screen or external equipment, in one embodiment, the click behaviour of user on the touchscreen
Make to send selection request to low layer mode interface.In another embodiment, external equipment includes mouse or keyboard, Yong Hu
Clicking operation on mouse or keyboard is to send selection request to low layer mode interface.
Control unit is configured as: establishing permanent liquid level mode corresponding with each low layer mode interface, constant voltage mode and limit
Stream mode, and the request of the selection based on user enter in corresponding permanent liquid level mode, constant voltage mode and current-limit mode.
Wherein, in permanent liquid level mode, control unit is based on liquid level signal to control the pumping plant by the instruction of scheduling unit
In more water pump start and stop with by the constant liquid level of intake pool (or pump pond) and discharge bay (or high position well) to preset range.Specifically
Ground, in permanent liquid level mode, control unit is configured as: the draining high liquid level and discharge bay of setting intake pool (or pump pond) (or
High-order well) water inlet low liquid level；The termination of pumping of the termination of pumping low liquid level and discharge bay (or high-order well) that set intake pool (or pump pond) is high
Liquid level；Liquid level signal based on acquisition, judges whether the liquid level of intake pool reaches the draining high liquid level of setting or the liquid of discharge bay
Whether position reaches the water inlet low liquid level of setting；If so, controlling more water pumps by default boot sequence by the instruction of scheduling unit
Start First water pump, and further judges whether the water level of intake pool (or pump pond) continues rising or discharge bay (or high-order well)
Water level continue to decline, if so, starting second water pump by default boot sequence, until more water pumps are all turned on, simultaneously
Adjust frequency.
Stop it is worth noting that control unit is also configured to judge whether the water level of intake pool (or pump pond) drops to
The water level of pump low liquid level or discharge bay (or high-order well) rises to termination of pumping high liquid level；If so, being controlled by the instruction of scheduling unit
More water pumps shut down First water pump by default closing sequence, and further judge whether the water level of intake pool (or pump pond) continues
The water level of decline or discharge bay (or high-order well) continues to rise, if so, second water pump is shut down by default closing sequence, until
More water pumps are all closed, while adjusting frequency.
Wherein, in constant voltage mode, control unit is based on pressure signal to control in the pumping plant by the instruction of scheduling unit
More water pump start and stop are with constant to preset range by the pressure of outlet pipe.Specifically, in constant voltage mode, control unit is configured
Are as follows: set the termination of pumping high pressure of the draining low-pressure sum of outlet pipe；Pressure signal based on acquisition judges that the pressure of outlet pipe is
The no draining low-pressure for reaching setting；Start if so, controlling more water pumps by the instruction of scheduling unit by default boot sequence
First water pump, and further judge whether the pressure of outlet pipe continues to decline, if so, by default boot sequence starting second
Platform water pump until more water pumps are all turned on, while adjusting frequency.
It is worth noting that control unit is also configured to judge the termination of pumping the height whether pressure of outlet pipe reaches setting
Pressure；If so, controlling more water pumps by the instruction of scheduling unit shuts down First water pump by default closing sequence, and further
Judge whether the pressure of outlet pipe continues to rise, if so, second water pump is shut down by default closing sequence, until more water pumps
It all closes, while adjusting frequency.
Wherein, in current-limit mode, control unit is based on flow signal to control in the pumping plant by the instruction of scheduling unit
More water pump start and stop are with constant to preset range by the flow of outlet pipe.Specifically, in current-limit mode, described control unit quilt
It is configured that the flow signal based on acquisition, judges whether the flow of outlet pipe is less than preset flow；If so, based on obtaining
Pressure signal, further judge whether the pressure of outlet pipe reaches the draining low-pressure of setting；If so, by scheduling unit
Instruction, which controls more water pumps, presses default boot sequence and starts First water pump, and under further judging whether outlet pipe flow continues
Drop then starts second water pump by default boot sequence, until more water pumps are all turned on, while adjusting frequency.
It is worth noting that control unit is also configured to judge whether outlet pipe flow is greater than preset flow；If
It is then to control more water pumps by the instruction of scheduling unit and shut down First water pump by default closing sequence, and further judge
Whether the flow of water pipe, which continues, rises, if so, second water pump is shut down by default closing sequence, until more water pumps all close
It closes, while adjusting frequency.
In the application, the management and running of wisdom draining are implemented by host computer is leading role, and this system is configured upper
In machine, slave computer (PLC) is arranged in each pumping plant, and slave computer is used to collect data and the equipment fortune of each sensor in pumping plant
Host computer is sent in row data, and accordingly to execute the dispatch command of host computer.
Therefore, this system is requested based on the selection of user, is controlled each pumping plant and is entered corresponding permanent liquid level mode, constant pressure mould
In formula and current-limit mode, mutual cooperation scheduling can be carried out to reach each pumping plant, what is drained between raising upstream and downstream pumping plant has
Sequence realizes the management and running of whole pumping plant.
Wherein, the decision-making foundation of each pumping plant model selection has:
1, drainage pipeline networks (contain rain pipe, river) structure, upstream-downstream relationship, negotiability, hydraulic model and current each
Node water level, pressure and flow；
2, the drainability of each drainage pumping plant, current operating conditions, draining nargin and trend；
3, the ability of each sewage treatment plant, current operating conditions, processing nargin and trend；
4, load, nargin and the trend of each pumping plant buffer pool or city " sponge " unit；
5, water supply situation, flood control situation, meteorology (rainfall) and trend；
6, the needs of city management and " five water are controlled altogether ".
As a result, according to the mode above according to each pumping drainage of formulation, the slave computer of pumping plant, each pumping plant are issued a command to below
After slave computer is connected to the dispatch command of this system, by draining task, control model and the parameter request of host computer arrangement, switching control
Molding formula adjusts control parameter, implements new control logic.
Embodiment two
Multiple middle layer mode interfaces are also configured in mode selecting unit, middle layer mode interface is used to obtain the selection of user
Request；
Control unit is also configured to establish energy-saving mode corresponding with each middle layer mode interface, long life mode and height
Effect mode, and the request of the selection based on user enter in corresponding energy-saving mode, long life mode and high effective model.Wherein,
In energy-saving mode, electric quantity signal and flow signal of the scheduling unit based on acquisition calculate energy efficiency coefficient, establish section
It can model；Control unit is pressed based on energy efficiency coefficient, energy saving model and selected permanent liquid level mode, constant voltage mode or current-limit mode
Each pump variable frequency operation in the instruction control pumping plant of scheduling unit, and the energy efficiency coefficient of every water pump is obtained preferentially to open energy
Imitate the high water pump of coefficient.
Specifically, scheduling unit issues the slave computer (PLC) of dispatch command to each pumping plant to control motor frequency change control
System operation achievees the purpose that pump variable frequency is run, no longer single to start by platform or stop the control mode of water pump as a result, but
Pumping plant perseverance liquid level mode, constant voltage mode or current-limit mode are realized in a manner of frequency conversion.
Wherein, when needing to open new water pump addition operation, the preferential high water pump of energy efficiency coefficient of opening is to save electricity
Energy.Energy efficiency coefficient=time starts rate * energy consumption performance index * equipment quality index, wherein
The time rate of starting=actual run time/(actual run time+downtime)；
Energy consumption shows index=actual production * rated power/practical electricity/nominal flow rate；
Equipment quality index=equipment theoretical depreciation expense/(equipment theoretical depreciation expense+equipment maintenance takes).
Specifically, equipment maintenance and management is carried out in view of TPM with emphasizing Comprehensive, then valuator device resultant effect
OEE index calculated value must be it is believable, can really reflect TPM management effect.So OEE calculation method is non-in equipment management
It is often important and very necessary.
Before analytical equipment OEE, we discuss the appraisal of equipment index that another is important first ----capacity of equipment
Index CMK.
CMK=(T-2ε)/6σ
Wherein: T refers to the margin of tolerance；ε refers to offset, and the average value for collecting data is subtracted equal to design specification center；σ is mark
Quasi- deviation.Capacity of equipment index CMK >=1.67；When capacity of equipment is not achieved, corrective action need to be analyzed and adopted immediately,
Then analysis is re-started again, until meeting；If production equipment cannot improve, alternative production equipment should be sought.
Wherein: T refers to the margin of tolerance；ε refers to offset, and the average value for collecting data is subtracted equal to design specification center；σ is mark
Quasi- deviation.Capacity of equipment index CMK >=1.67；When capacity of equipment is not achieved, corrective action need to be analyzed and adopted immediately,
Then analysis is re-started again, until meeting；If production equipment cannot improve, alternative production equipment should be sought.
Equally, in Diversification Type sewage treatment production, typical OEE calculation formula is also difficult to apply, therefore we need root
Design is modified according to the sewage disposal device characteristics of management.
Principle to OEE amendment design is the performance element for the overall equipment efficiency.comprehensive efficiency of equipment for understanding specific industry.At sewage
Industry is managed, the performance element of overall equipment efficiency.comprehensive efficiency of equipment is equipment life, operation energy consumption, maintenance cost this three elements.
Design below, will with this principle to typical OEE calculation formula (OEE=time rate of starting × performance index ×
Product quality index) in start rate, performance index, performance figure are modified design.
(1) rate is started
In sewage treatment industry, time availability or start operating time or runing time in rate be not necessarily it is more short more
It is good, because we may use frequency conversion control technique for power saving, by frequency reducing, though runing time has been appropriately extended, unit
The water process amount of electricity consumption increases；Since most equipment is all stopped under automated system control according to real-time condition start-stop
Or frequency reducing operation, running optimizatin processing is carried out, so it is also dynamic for starting the plan running time in rate in the time.Institute
With we simply plus the downtime can replace plan running time can reflect dirt with actual run time
The time of water treatment facilities starts rate, it may be assumed that
The time rate of starting=actual run time/plan running time
=actual run time/(actual run time+downtime)
Actual run time and downtime can obtain from pumping plant slave computer.
(2) index is showed
In sewage treatment industry, the total output in performance rate or performance index is also not what we will especially pursue,
Because it is desirable that and operating cost can be fallen in the section that yield is balanced at one.For this purpose, also need to be modified this,
We replace the yield of unit time to show with the performance of the yield of unit equipment energy consumption, and are known as " energy consumption performance index ".It is right
In electrical equipment, we generically can calculate energy consumption performance index with the yield of averagely every degree electricity.Therefore, performance refers to
Number can be indicated with the ratio between the yield of effective unit equipment energy consumption and the yield of theoretical unit equipment energy consumption.
Index is showed with device energy conservation efficiency replacement production performance, it may be assumed that
Energy consumption shows index=effective unit equipment energy consumption yield/theoretical unit equipment energy consumption yield
For the equipment based on power consumption, energy consumption can be indicated with electricity consumption, it may be assumed that
Energy consumption shows index=(actual production/practical electricity)/(nominal flow rate/rated power)
=actual production × rated power/practical electricity/nominal flow rate
Actual production (such as flow) and practical electricity can be obtained from pumping plant slave computer, and rated power and nominal flow rate can
Using the data provided on equipment nameplate by equipment manufacturer.
(3) performance figure
In sewage treatment industry, performance figure is also difficult to be determined with product qualification rate or product quality data.For this purpose, needing
This is modified, we replace product quality with the running quality of equipment itself, and are known as " equipment quality index ".Equipment
Performance figure can be measured with the ratio between the theoretical depreciation expense of same period and actual depreciation expense, and actual depreciation expense is exactly theoretical folding
It is old to take plus maintenance cost.
Equipment quality index=equipment theoretical depreciation expense/equipment actual depreciation expense
=depreciation of equipment/(depreciation of equipment+equipment maintenance cost)
Equipment theoretical depreciation expense presses the depreciation of fixed assets expense of financial accounting book keeping operation, and equipment maintenance cost is by the dimension actually generated
Repair expense and maintenance expense statistics.
By above correcting process, we adjust the calculation formula of the OEE of sewage treatment industry are as follows:
OEE=time rate of starting × energy consumption shows index × equipment quality index
Wherein:
The time rate of starting=actual run time/(actual run time+downtime)
Energy consumption shows index=actual production × rated power/practical electricity/nominal flow rate
Equipment quality index=equipment theoretical depreciation expense/(equipment theoretical depreciation expense+equipment maintenance takes)
Due to considering energy factor and life cycle cost, so above-mentioned OEE is referred to alternatively as green OEE.
Most of data in above formula can be obtained from pumping plant slave computer neutralizing device account, to form data
Parameter is input in this system.
In long life mode, water pump operation signal and energy efficiency coefficient of the scheduling unit based on acquisition, mathematic(al) expectation system are built
Vertical longevity model；Control unit is based on life factor, long-lived model, by each water pump in the instruction control pumping plant of scheduling unit
Runing time is identical and frequency is identical.Specifically, this system passes through the time for monitoring each water pump operation, by under scheduling unit
It is identical with the runing time for controlling each water pump to send out dispatch command.I.e. each water pump alternating start and stop are to guarantee that pumping plant is in permanent liquid level
In mode, constant voltage mode and current-limit mode.
In high effective model, control unit controls pump under the premise of guaranteeing essential safety requirements, by the instruction of scheduling unit
Whole water pumps are run in standing with power frequency or overclocking.
It is worth noting that being also configured with integrated mode in control unit, integrated mode is exactly that above-mentioned various modes carry out
Combined application.Specifically, multiple model selections are arranged for single pumping plant, is required according to the process characteristic of pumping plant and management, selection
Applicable control model is carried out priority ranking to the mode of selection, is controlled with the priority of sequence pumping plant.
Thus when selecting mode corresponding with middle layer mode interface, user is needed first to select corresponding with low layer mode interface
Permanent liquid level mode, constant voltage mode or current-limit mode.
Embodiment three
Data detecting unit, which is also used to obtain locally to catchment in single pumping plant, receives the flow signal of pipe；
Wherein, the flow signal of pipe is received when the data detecting unit can not directly acquire locally to catchment in single pumping plant
When, the scheduling unit can calculate local catchment by upstream and downstream pumping plant flow and receive Guan Liuliang, and the local, which is catchmented, receives pipe
Flow=this pumping plant arrives the sum of the sum of downstream pump station flow-upstream pumping unit to this pumping plant flow；
High-rise mode interface is also configured in mode selecting unit, the selection that high-rise mode interface is used to obtain user is asked
It asks；
Control unit is also configured to establish automatic mode corresponding with high-rise mode interface, and the choosing based on user
Request is selected to enter in corresponding automatic mode；Wherein, in automatic mode, control unit is based on locally catchmenting in the pumping plant and receive
The flow signal of pipe, and judge locally to catchment in the pumping plant and receive the flow signal of pipe and whether be less than preset a reference value, if so,
The pumping plant is controlled to enter in the energy-saving mode or long life mode；Conversely, if it is not, then control the pumping plant enter it is described efficiently
In mode.
Wherein, after the selected permanent liquid level mode of user, constant voltage mode or current-limit mode, then selected automatic mode is removed, and
In automatic mode, control unit control pumping plant enters energy-saving mode or long life mode and passes through pre-set form.
As a result, in automatic mode, pumping plant will receive the flow signal of pipe and will automatically control pumping plant mode according to local catchment
Control.
It is worth noting that control unit is also configured with contingency mode, when contingency mode occurs for special emergency event,
Part pumping plant opens high effective model, and part pumping plant opens current-limit mode, with achievement unit wheel cylinder station Quick drainage to the maximum extent.It answers
Anxious mode mainly passes through the drainage load of each pumping plant of manual intervention, to meet the needs of emergency processing.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of pumping plant wisdom drains Dispatching Control System, which is characterized in that including data detecting unit, mode selecting unit,
Scheduling unit and control unit, data detecting unit, mode selecting unit and scheduling unit are connected with control unit respectively；
The data detecting unit is for obtaining the liquid level signal of intake pool and discharge bay in single pumping plant, being discharged in single pumping plant
The flow signal of outlet pipe in the pressure signal of pipe and single pumping plant；
Multiple low layer mode interfaces are configured in the mode selecting unit, the low layer mode interface is used to obtain the choosing of user
Select request；
Described control unit is configured as:
Permanent liquid level mode corresponding with each low layer mode interface, constant voltage mode and current-limit mode are established, and based on user's
Selection request enters in corresponding permanent liquid level mode, constant voltage mode and current-limit mode；Wherein,
In permanent liquid level mode, control unit is based on liquid level signal to control more water pumps in the pumping plant by the instruction of scheduling unit
Start and stop are with by the constant liquid level of intake pool and discharge bay to preset range；
In constant voltage mode, control unit is opened based on pressure signal with controlling more water pumps in the pumping plant by the instruction of scheduling unit
Stop so that the pressure of outlet pipe is constant to preset range；
In current-limit mode, control unit is opened based on flow signal with controlling more water pumps in the pumping plant by the instruction of scheduling unit
Stop so that the flow of outlet pipe is constant to preset range；
Multiple middle layer mode interfaces are also configured in the mode selecting unit, the middle layer mode interface is for obtaining user's
Selection request；
Described control unit is also configured to
Establish energy-saving mode corresponding with each middle layer mode interface, long life mode and high effective model, and the choosing based on user
Request is selected to enter in corresponding energy-saving mode, long life mode and high effective model；Wherein,
In energy-saving mode, control unit is based on selected permanent liquid level mode, constant voltage mode or current-limit mode, by scheduling unit
Each pump variable frequency operation in instruction control pumping plant, and it is high preferentially to open energy efficiency coefficient to obtain the energy efficiency coefficient of every water pump
Water pump；In long life mode, control unit is identical by the runing time of each water pump in the instruction control pumping plant of scheduling unit；
In high effective model, control unit is run by whole water pumps in the instruction control pumping plant of scheduling unit with power frequency or overclocking；
Energy efficiency coefficient=the time starts rate * energy consumption performance index * equipment quality index, wherein
The time rate of starting=actual run time/(actual run time+downtime)；
Energy consumption shows index=actual production * rated power/practical electricity/nominal flow rate；
Equipment quality index=equipment theoretical depreciation expense/(equipment theoretical depreciation expense+equipment maintenance takes).
2. a kind of pumping plant wisdom according to claim 1 drains Dispatching Control System, which is characterized in that in permanent liquid level mode
In, described control unit is configured as:
Set the draining high liquid level of intake pool and the water inlet low liquid level of discharge bay；
Set the termination of pumping low liquid level of intake pool and the termination of pumping high liquid level of discharge bay；
Liquid level signal based on acquisition, judges whether the liquid level of intake pool reaches the draining high liquid level of setting or the liquid of discharge bay
Whether position reaches the water inlet low liquid level of setting；
If so, controlling more water pumps by the instruction of scheduling unit starts First water pump by default boot sequence, and further
Judge whether the water level of intake pool continues to rise or the water level of discharge bay continues to decline, if so, by default boot sequence starting
Second water pump, until more water pumps are all turned on.
3. a kind of pumping plant wisdom according to claim 2 drains Dispatching Control System, which is characterized in that in permanent liquid level mode
In, control unit is also configured to
Judge whether the water level of intake pool drops to termination of pumping low liquid level or the water level of discharge bay rises to termination of pumping high liquid level；
If so, controlling more water pumps by the instruction of scheduling unit shuts down First water pump by default closing sequence, and further
Judge whether the water level of intake pool continues decline or the water level of discharge bay continues to rise, if so, shutting down by default closing sequence
Second water pump, until more water pumps are all closed.
4. a kind of pumping plant wisdom according to claim 1 drains Dispatching Control System, which is characterized in that in constant voltage mode
In, described control unit is configured as:
Set the draining low-pressure and termination of pumping high pressure of outlet pipe；
Pressure signal based on acquisition, judges whether the pressure of outlet pipe reaches the draining low-pressure of setting；
If so, controlling more water pumps by the instruction of scheduling unit starts First water pump by default boot sequence, and further
Judge whether the pressure of outlet pipe continues to decline, if so, starting second water pump by default boot sequence, until more water pumps
It is all turned on.
5. a kind of pumping plant wisdom according to claim 4 drains Dispatching Control System, which is characterized in that in constant voltage mode
In, control unit is also configured to
Judge whether the pressure of outlet pipe reaches the termination of pumping high pressure of setting；
If so, controlling more water pumps by the instruction of scheduling unit shuts down First water pump by default closing sequence, and further
Judge whether the pressure of outlet pipe continues to rise, if so, second water pump is shut down by default closing sequence, until more water pumps
All close.
6. a kind of pumping plant wisdom according to claim 1 drains Dispatching Control System, which is characterized in that in current-limit mode
In, described control unit is configured as:
Flow signal based on acquisition, judges whether the flow of outlet pipe is less than preset flow；
If so, the pressure signal based on acquisition, further judges whether the pressure of outlet pipe reaches the draining low-pressure of setting；
If so, controlling more water pumps by the instruction of scheduling unit starts First water pump by default boot sequence, and further
Judge whether outlet pipe flow continues to decline, then start second water pump by default boot sequence, until more water pumps are all opened
It opens.
7. a kind of pumping plant wisdom according to claim 6 drains Dispatching Control System, which is characterized in that in current-limit mode
In, described control unit is also configured to
Judge whether outlet pipe flow is greater than preset flow；
If so, controlling more water pumps by the instruction of scheduling unit shuts down First water pump by default closing sequence, and further
Judge whether the flow of outlet pipe continues to rise, if so, second water pump is shut down by default closing sequence, until more water pumps
All close.
8. a kind of pumping plant wisdom according to claim 1 drains Dispatching Control System, which is characterized in that the Data Detection
Unit, which is also used to obtain locally to catchment in single pumping plant, receives the flow signal of pipe；
High-rise mode interface is also configured in the mode selecting unit, the high level mode interface is used to obtain the selection of user
Request；Described control unit is also configured to
Automatic mode corresponding with high-rise mode interface is established, and the request of the selection based on user enters corresponding automatic mold
In formula；Wherein,
In automatic mode, control unit receives the flow signal of pipe based on locally catchmenting in the pumping plant, and judges this in the pumping plant
Ground, which catchments, to be received the flow signal of pipe and whether is less than preset a reference value, if so, controlling the pumping plant enters the energy-saving mode
Or in long life mode；Conversely, being entered in the high effective model if it is not, then controlling the pumping plant.
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| CN110471372A (en) * | 2018-05-11 | 2019-11-19 | 上海威派格智慧水务股份有限公司 | A kind of dispatching method between more water pumps |
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| CN110618719B (en) * | 2019-08-23 | 2021-08-17 | 云南大红山管道有限公司 | Flow control device of large-scale water delivery, transfer and lifting system and operation method thereof |
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| CN113701321B (en) * | 2021-07-20 | 2023-03-24 | 江苏联宏智慧能源股份有限公司 | Energy-saving frequency conversion control method for central air-conditioning water pump |
| CN113885592B (en) * | 2021-09-01 | 2024-01-16 | 武汉市政工程设计研究院有限责任公司 | Intelligent operation and maintenance method, system and device for sewage deep tunneling and storage medium |
| CN114542178B (en) * | 2022-02-15 | 2022-10-28 | 北京龙软科技股份有限公司 | Mine pump room intelligent drainage control method and system based on big data analysis |
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