CN106401932B - A kind of sewage disposal elevator pump progress control method - Google Patents
A kind of sewage disposal elevator pump progress control method Download PDFInfo
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- CN106401932B CN106401932B CN201610972633.8A CN201610972633A CN106401932B CN 106401932 B CN106401932 B CN 106401932B CN 201610972633 A CN201610972633 A CN 201610972633A CN 106401932 B CN106401932 B CN 106401932B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of progress control method of sewage disposal elevator pump, belong to technical field of sewage.Instructed by control unit reception processing unit, obtain needing the quantity for the high-power elevator pump and small-power elevator pump opened, the quantity for the elevator pump opened by comparing needs and the quantity of the elevator pump in running status, it is determined that simultaneously intelligent control needs the elevator pump opened and closed, realize the unattended of sewage disposal elevator pump, and intelligently switch elevator pump rotation work, realize the balance abrasion of all elevator pumps.
Description
Technical field
The present invention relates to technical field of sewage, specifically, more particularly to a kind of sewage disposal lifting pump operation control
Method.
Background technology
With China's economic development and the propulsion of urbanization, the demand of municipal sewage treatment is increasingly increased.Current China
Although achieving greater advance in terms of the construction of municipal sewage plant, all there is automation in most of sewage treatment plant
Level is low, despises the problems such as process management, high energy consumption, high O＆M cost.Elevator pump is second largest energy consumption in sewage disposal system
Intelligent control is done in equipment, the operation to elevator pump, the intelligent management and control, unattended significant to realizing sewage treatment plant.
The content of the invention
It is an object of the invention to provide a kind of sewage disposal elevator pump progress control method, intelligence is done in the operation to elevator pump
Control, with the start and stop of intelligent management and control sewage pump, realizes the intelligent management and control of sewage treatment plant and unattended target.
To achieve the above object, the present invention uses following technical scheme：
Sewage disposal elevator pump progress control method of the present invention, comprises the following steps：
(1) quantity M, N of the high-power elevator pump of actual installation and small-power elevator pump in sewage treatment plant is determined, is inputted
To processing unit；
(2) control unit reception processing unit instructs, and obtains needing the high-power elevator pump and small-power elevator pump opened
Quantity m, n；
(3) relation of m and M relation, n and N is judged；
(4) m is worked as<During M, judge m and the actual high-power elevator pump quantity K in running status relation, work as m<K
When, cut off K-m big pumps in the K run big pump；Work as m>During=K, start m-K in the big pump of remaining off-duty
Big pump；
Work as m<M, and n>During=N, if the flow of n-N small pumps is more than the flow of the big pump of at least one, one is at least increased
Big pump；
Work as n<During N, judge n and the actual small-power elevator pump quantity L in running status relation, work as n<During L,
L-n small pumps are cut off in the L run small pumps；Work as n>During=L, start in the small pump of remaining off-duty n-L small
Pump；
Work as n<N, and m>During=M, if the flow of N-n small pumps is more than the flow of m-M big pump, N-n small pumps are increased；
Work as m>=M, and n>During=N, represent that all elevator pumps are in oepration at full load state in sewage treatment plant；
(5) control result is back to processing unit.
Preferably, step (1) also includes：Determine the expectation operation duration of elevator pump and input to processing unit；In step
(4) in, the individual big pumps of K-m of cutting off are to find to reach cutting off for the expectation operation duration at first, until m=K；The startup
M-K big pump is to find the startup optimization shut down at first, until m=K；It is described at least to increase one big pump to increase shutdown earliest
Big pump；The individual small pumps of L-n of cutting off are to find to reach cutting off for the expectation operation duration at first, until n=L；It is described to open
Dynamic n-L small pumps are to find the startup optimization shut down at first, until n=L.
Preferably, step (5) also includes：
When control unit pass back elevator pump at full capacity when, processing unit sends early warning short message.
Preferably, step (4) also includes：
When the elevator pump that control unit control needs to be turned on or off can not be normally-open or closed, automatic switchover carries
Rise pump.
Further, it is preferable to, step (5) also includes：
When control unit, which is passed back, needs the elevator pump that is turned on or off normally can not start or close, processing unit
Send early warning short message.
Compared with prior art, the present invention has advantages below and beneficial effect：
First, the opening and closing of intelligent control elevator pump of the present invention, the unattended of sewage disposal elevator pump is realized, reduced
Cost of labor；
2nd, present invention control elevator pump rotation work, the balance abrasion of all water pumps is realized, reduces O＆M cost.
3rd, when control unit control elevator pump can not be normally-open or closed, intelligence switches elevator pump and single by processing
Member sends early warning short message, in the case of guarantee is unattended, the normal operation of sewage treatment plant.
Brief description of the drawings
Fig. 1 is sewage disposal lifting pump operation control flow chart；
Fig. 2 is the control flow chart of control unit intelligence management and control sewage disposal elevator pump start and stop.
Embodiment
With reference to accompanying drawing, the present invention is described further.
Fig. 1 is sewage disposal lifting pump operation control flow chart, as shown in figure 1, sewage disposal elevator pump Optimized Operation side
Method, comprise the following steps：
(1) maximum stage and lowest water level that cesspool allows, the expectation operation duration of elevator pump and high-power are determined
The specified displacement of elevator pump and the specified displacement of small-power elevator pump, are inputted to processing unit；
(2) liquid level data is gathered, and liquid level data is reached into control unit；
(3) liquid level data is reached into processing unit by control unit；
(4) processing unit carries out calculating processing by following Optimization scheduling algorithm to liquid level data：
4a) calculate the flow of k moment cesspools
Wherein, h (k) is the liquid level data at k moment, and unit is rice, and Δ t (k) is time interval, and unit is minute, Δ Q
(k) be the k moment the discharge of sewage, unit for m/min,For the flow of k moment cesspools, unit is m/min；
4b) according in actual production, city the charge of electricity policy, it is divided into two periods considerations：
Crest segment 08:00—22:00, dispatching method is：
Paddy section 22:01—07:59, dispatching method is：
Wherein,
T is the expectation operation duration of elevator pump, and unit is minute,
ΔQGreatlyFor the specified displacement of high-power elevator pump, unit for m/min,
ΔQIt is smallFor the specified displacement of small-power elevator pump, unit for m/min,
HmaxFor the cesspool maximum stage of permission, unit is rice,
H is the current level of cesspool, and unit is rice,
HminFor the cesspool lowest water level of permission, unit is rice,
M, n are integer, and m represents the high-power elevator pump quantity opened, and n represents the small-power elevator pump quantity opened, taken
M, n minimum value, as k moment need the quantity of the high-power elevator pump opened and small-power elevator pump；
Wherein, in step 4a) in also include following denoising steps：
Δq1=Δ Q (k)-Δ Q (k-1) (1-7)
Δq2=Δ Q (k-1)-Δ Q (k-2) (1-8)
In formula, Δ q1For the changes in flow rate at k moment and k-1 moment, unit for m/min, Δ q2During for the k-1 moment with k-2
The changes in flow rate at quarter, unit for m/min,
As Δ q1Or Δ q2During more than 0.5 m/min, this group of sampled data is abandoned.
(5) processing unit needs the obtained k moment quantity m, n for the high-power elevator pump and small-power elevator pump opened
Reach control unit；
(6) control unit is according to the unlatching situation of current elevator pump, it is determined whether needs to switch elevator pump, if desired switches
Elevator pump, it is determined that and the elevator pump for controlling needs to open and close, if elevator pump need not be switched, continue collection liquid digit
According to the Optimized Operation for carrying out subsequent time calculates.
Wherein, control elevator pump open and close control method for control manually, automatically control or remote control in
One kind.
In addition, processing unit includes statistical module, for counting the log of elevator pump, for example, the fortune of elevator pump
Row time, time of having a rest, maintenance time and time buying etc., it is easy to control elevator pump rotation according to the log of elevator pump
Work, reduce O＆M cost.
Fig. 2 is the control flow chart of control unit intelligence management and control sewage disposal elevator pump start and stop.As shown in Fig. 2 first, really
Determine elevator pump expectation operation duration be 2 hours, and in sewage treatment plant actual installation high-power elevator pump and small-power
Quantity M, N of elevator pump, input to processing unit；Secondly, the start and stop instruction of control unit reception processing unit, obtains needs and opens
The high-power elevator pump and quantity m, n of small-power elevator pump opened；Relation by control unit to m and M again, n and N relation are entered
Row judges, and it is as follows to carry out corresponding operating：
Work as m<During M, judge m and the actual high-power elevator pump quantity K in running status relation, work as m<During K,
Found in the big pump of the K run and reach cutting off for 2 hours operation durations at first, until m=K；Work as m>During=K, surplus
The startup optimization shut down at first is found in the big pump of remaining off-duty, until m=K, wherein, big pump is high-power elevator pump；
Work as m<M, and n>During=N, if the flow of n-N small pumps is more than the flow of the big pump of at least one, 1 is at least increased
The big pump shut down earliest, i.e., when small pump lazy weight, small pump on the one hand is replaced with existing big pump, on the other hand according to drop
The principle of low energy consumption, big pump, the stream that big pump can not be handled are increased in the case where the total flow of required small pump is more than big pump discharge
Amount then enters subsequent cycle and accumulated, for example, being shown in Fig. 2, when the flow of n-N small pumps is more than the flow of 1 big pump, then increases
1 big pump shut down earliest is driven, wherein, small pump is small-power elevator pump；
Work as n<During N, judge n and the actual small-power elevator pump quantity L in running status relation, work as n<During L,
Found in the L run small pumps and reach cutting off for 2 hours operation durations at first, until n=L；Work as n>During=L, surplus
The startup optimization shut down at first is found in the small pump of remaining off-duty, until n=L；
Work as n<N, and m>During=M, if the flow of N-n small pumps is more than the flow of m-M big pump, N-n small pumps are increased；
Work as m>=M, and n>During=N, represent that all elevator pumps are in oepration at full load state in sewage treatment plant；
Finally, control result is back to processing unit.
During work, in sewage treatment plant's arrangement processing unit, liquid level sensor is installed at cesspool sewage inlet, is used for
The liquid level data of cesspool is gathered, and liquid level sensor is connected with the controller of control unit, controller passes through wireless network
It is connected with processing unit, to processing unit feedback control results, so that processing unit carries out corresponding operating, completes sewage disposal and carry
Rise the Optimized Operation of pump and intelligent management and control.
Firstly, it is necessary to the typing data below in processing unit：
The maximum stage that cesspool allows is 12 meters, and lowest water level is 1 meter；The operation duration of desired elevator pump is 2 small
When；The specified displacement Δ Q of high-power elevator pumpGreatlyWith the specified displacement Δ Q of small-power elevator pumpIt is small；It is real in sewage treatment plant
The high-power elevator pump of border installation and quantity M, N of small-power elevator pump；The minimum big work(in operation in sewage disposal system
The quantity of rate elevator pump and small-power elevator pump.
In processing unit after the above-mentioned given data of typing, sewage disposal system is started working.Adopted by liquid level sensor
Collect the liquid level data of cesspool and a setting data of collection per minute, and liquid level data is reached into control unit, it is single by control
Liquid level data is reached processing unit by the controller of member；Processing unit is counted according to following Optimization scheduling algorithm to liquid level data
Calculation is handled：
Calculate the flow of k moment cesspools
In formula, h (k) is the liquid level data at k moment, and unit is rice, and Δ t (k) is time interval, and unit is minute, Δ Q
(k) be the k moment the discharge of sewage, unit for m/min,For the flow of k moment cesspools, unit is m/min；
Wherein, because cesspool admission sewage is not constant, but nonlinearity real-time change.For example, 24
In hour, sewage admission at noon 11:00-13:00 and at night 18:00-20:00 is peak period, it may appear that sewage admission amount
The phenomenon of moment increase.Therefore, the calculating to flow carries out denoising, with the data of filtering mutation, prevents sewage disposal from carrying
Rise the frequent start-stop of pump.
Δq1=Δ Q (k)-Δ Q (k-1) (1-7)
Δq2=Δ Q (k-1)-Δ Q (k-2) (1-8)
In formula, Δ q1For the changes in flow rate at k moment and k-1 moment, unit for m/min, Δ q2During for the k-1 moment with k-2
The changes in flow rate at quarter, unit for m/min,
As Δ q1Or Δ q2During more than 0.5 m/min, i.e., when changes in flow rate is more than 0.5 meter in one minute, abandon the group
Sampled data.
According in actual production, the change electricity price fees policy of city electricity consumption, it is divided into two periods considerations：
Crest segment 08:00—22:00, dispatching method is：
Paddy section 22:01—07:59, dispatching method is：
In formula,
ΔQGreatlyFor the specified displacement of high-power elevator pump, unit for m/min,
ΔQIt is smallFor the specified displacement of small-power elevator pump, unit for m/min,
HmaxFor the cesspool maximum stage of permission, unit is rice,
H is the current level of cesspool, and unit is rice,
HminFor the cesspool lowest water level of permission, unit is rice,
M, n are integer, and m represents the high-power elevator pump quantity opened, and n represents the small-power elevator pump quantity opened, taken
M, n minimum value, as k moment need the quantity of the high-power elevator pump opened and small-power elevator pump.
Processing unit show that current time needs the high-power elevator pump opened and small work(according to above-mentioned Optimization scheduling algorithm
Quantity m, n of rate elevator pump, result is reached into control unit, judged by control unit according to the unlatching situation of current elevator pump
Whether need to switch elevator pump, if elevator pump need not be switched, the liquid level data of subsequent time is gathered by liquid level sensor, and
Elevator pump Optimization scheduling algorithm calculating is carried out by processing unit.
If desired switch elevator pump, then after control unit receives elevator pump start and stop instruction, according to following control flow,
And the log of elevator pump that statistical module is counted in processing unit is combined, it is determined that and controlling what needs opened and closed to carry
Rise pump：
Judge the relation of m and M relation, n and N, and it is as follows to carry out corresponding operating：
Work as m<During M, judge m and the actual high-power elevator pump quantity K in running status relation, work as m<During K,
Found in the big pump of the K run and reach cutting off for 2 hours operation durations at first, until m=K；Work as m>During=K, surplus
The startup optimization shut down at first is found in the big pump of remaining off-duty, until m=K；
Work as m<M, and n>During=N, if the flow of n-N small pumps is more than the flow of 1 big pump, increases one and shut down earliest
Big pump；
Work as n<During N, judge n and the actual small-power elevator pump quantity L in running status relation, work as n<During L,
Found in the L run small pumps and reach cutting off for 2 hours operation durations at first, until n=L；Work as n>During=L, surplus
The startup optimization shut down at first is found in the small pump of remaining off-duty, until n=L；
Work as n<N, and m>During=M, if the flow of N-n small pumps is more than the flow of m-M big pump, N-n small pumps are increased；
Work as m>=M, and n>During=N, represent that all elevator pumps are in oepration at full load state in sewage treatment plant；
According to the operation duration of elevator pump and rest duration, being turned on or off for elevator pump is controlled, makes elevator pump rotation
Work, the balance abrasion of all elevator pumps is realized, reduce O＆M cost；
Finally, control result is back to processing unit, the elevator pump Optimized Operation of subsequent time is carried out by processing unit
Calculate, form the circulation running of sewage treatment plant's system.
By the start and stop of control unit intelligent control elevator pump, the unattended of sewage disposal elevator pump is realized, reduces people
Work cost；And control unit intelligent control elevator pump rotation work, realizes all elevator pumps according to the operation duration of elevator pump
Balance abrasion, reduce O＆M cost.
In addition, when control unit transmits all elevator pumps to processing unit and is in oepration at full load state, processing
Unit sends early warning short message to related personnel.
In the running of elevator pump, there is long elevator pump overheat, continuous operating time or needs unlatching or close
During the problems such as elevator pump that closes breaks down and normally can not start or close, control unit can automatically switch and elevator pump and will believe
Breath reaches processing unit, and early warning short message is sent to staff in time from processing unit, in the case that guarantee is unattended, sewage
The normal operation for the treatment of plant, reduce cost of labor.
Claims (5)
1. a kind of sewage disposal elevator pump progress control method, it is characterised in that comprise the following steps：
(1) quantity M, N of the high-power elevator pump of actual installation and small-power elevator pump in sewage treatment plant, input to place are determined
Manage unit；
(2) control unit reception processing unit instructs, and obtains needing the number for the high-power elevator pump and small-power elevator pump opened
Measure m, n；
(3) relation of m and M relation, n and N is judged；
(4) m is worked as<During M, judge m and the actual high-power elevator pump quantity K in running status relation, work as m<During K,
K-m high-power elevator pumps are cut off in the K run high-power elevator pumps；Work as m>During=K, in the big of remaining off-duty
Start m-K high-power elevator pumps in power ascension pump；
Work as m<M, and n>During=N, if the flow of n-N small-power elevator pump is more than the flow of the high-power elevator pump of at least one,
At least increase a high-power elevator pump；
Work as n<During N, judge n and the actual small-power elevator pump quantity L in running status relation, work as n<During L,
L-n small-power elevator pump is cut off in the L small-power elevator pump through operation；Work as n>During=L, in the small-power of remaining off-duty
Start n-L small-power elevator pump in elevator pump；
Work as n<N, and m>During=M, if the flow of N-n small-power elevator pump is more than the flow of m-M high-power elevator pumps, increase
Drive N-n small-power elevator pump；
Work as m>=M, and n>During=N, represent that all elevator pumps are in oepration at full load state in sewage treatment plant；
(5) control result is back to processing unit.
2. sewage disposal elevator pump progress control method according to claim 1, it is characterised in that
The step (1) also includes：Determine the expectation operation duration of elevator pump and input to processing unit；
In the step (4), the individual high-power elevator pumps of K-m of cutting off are to find to reach the expectation operation duration at first
Cut off, until m=K；The startup m-K high-power elevator pumps are to find the startup optimization shut down at first, until m=K；It is described
A high-power elevator pump is at least increased to increase the high-power elevator pump shut down earliest；It is described to cut off L-n small-power lifting
Pump is to find to reach cutting off for the expectation operation duration at first, until n=L；It is described to start n-L small-power elevator pump to look for
To the startup optimization shut down at first, until n=L.
3. sewage disposal elevator pump progress control method according to claim 1, it is characterised in that the step (5) is also
Including：
When control unit pass back elevator pump at full capacity when, processing unit sends early warning short message.
4. sewage disposal elevator pump progress control method according to claim 1, it is characterised in that the step (4) is also
Including：
When the elevator pump that control unit control needs to be turned on or off can not be normally-open or closed, lifting of automatically switching
Pump.
5. sewage disposal elevator pump progress control method according to claim 1, it is characterised in that the step (5) is also
Including：
When control unit, which is passed back, needs the elevator pump that is turned on or off normally can not start or close, processing unit is sent
Early warning short message.
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| CN109814510B (en) * | 2019-01-31 | 2022-02-22 | 中冶华天工程技术有限公司 | Sewage treatment lift pump optimal scheduling control method based on incoming water prediction |
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| JP3682378B2 (en) * | 1998-11-06 | 2005-08-10 | 株式会社クボタ | Operation control system for multiple pumps |
| JP4312913B2 (en) * | 1999-12-20 | 2009-08-12 | 千代田化工建設株式会社 | Pump system |
| CN101761490B (en) * | 2009-12-23 | 2012-01-11 | 北京源汇远科技有限公司 | Control method for inlet water lifting pumps of sewage plant |
| CN103244396B (en) * | 2013-05-08 | 2015-08-05 | 天津大学 | The determination of the efficient parallel pumps of secondary water-supply full flow and progress control method |
| CN103233888A (en) * | 2013-05-14 | 2013-08-07 | 江苏大学 | Multi-pump switching energy-saving control system under single frequency conversion control |
| CN105806012B (en) * | 2014-12-31 | 2018-09-07 | 国家电网公司 | Gas power station recirculating cooling water system and its start-up and shut-down control method |
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