CN116006449B - General drainage control system and drainage pump control method - Google Patents
General drainage control system and drainage pump control method Download PDFInfo
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Abstract
A general drainage control system and a drainage pump control method comprise drainage equipment, a sensor, a general control function module and a man-machine interaction device; the drainage equipment comprises n drainage pumps, the numbers of the drainage pumps are 1#,2# … … n#, the drainage equipment is connected with a general control function module, and the general control function module controls the drainage equipment to start/stop; the sensors are respectively arranged on the drainage pool, the reservoir and the drainage equipment and used for collecting control parameters and state signals, and the sensors are connected with the universal control function module; the general control function module is used for automatically controlling n draining pumps in the draining equipment and is connected with the man-machine interaction device. The universal drainage control system and the drainage pump control method have wide applicability; various parameters can be flexibly set according to actual needs, the conditions are not limited, and manpower, material resources and financial resources are saved.
Description
Technical Field
The invention relates to the field of control of drainage systems, in particular to a universal drainage control system and a drainage pump control method.
Background
In industrial control, there are many applications where a drainage system is needed, for example: the water turbine is arranged at the top cover part of the water truck room to leak water, and a water turbine top cover drainage system is needed; a riverbed rock mass water leakage is arranged in the dam body of the hydropower station, and a dam foundation drainage system is needed; the unit maintenance of the hydropower station requires a unit maintenance drainage system; the factory is rainy and drained, and a factory area rainwater drainage system is needed. These systems are all typical drainage systems.
The drainage system is generally designed with a plurality of drainage pumps as drainage equipment, when the technology of a drainage system pump station is modified, the number of the 0-level main pump set, each level standby pump set and the drainage pump of the whole pump station is changed, a control program is required to be rewritten or changed in a large scale, and a great deal of manpower, material resources and financial resources are required to be consumed for modifying the technology modification program. At present, a portable, universal, modularized and flexible drainage control system capable of changing the number of main pump sets, all-stage standby pump sets and all-pump-station drainage pumps and starting and stopping control parameters is not disclosed, but a control program is not required to be changed or redesigned on a large scale.
Disclosure of Invention
In order to solve the problem that when the drainage system pump station technology is modified, the number of the main pump set, each standby pump set and the whole pump station drainage pump is changed, the control program must be rewritten or changed on a large scale. The invention provides a universal drainage control system and a drainage pump control method, which have wide applicability. The start-stop parameters, the pump station parameters and the rotation parameters can be flexibly set according to actual requirements, and the conditions are unlimited; and the manpower, material resources and financial resources are saved.
The technical scheme adopted by the invention is as follows:
a general drainage control system comprises drainage equipment, a sensor, a general control function module and a man-machine interaction device; the drainage equipment is used for pumping and draining the water stored in the drainage pool to the reservoir;
the drainage equipment comprises n drainage pumps, wherein the numbers of the drainage pumps are 1# and 2# … … n #, the drainage equipment is connected with a general control function module, and the general control function module controls the drainage equipment to start/stop; the n draining pumps are divided into m+1 groups from high to low according to the priority of starting the pumps, namely a 0-level main pump group, a 1-level standby pump group and a … … m-level standby pump group, and m is a natural number.
The sensors are respectively arranged on the drainage pool, the reservoir and the drainage equipment and used for collecting control parameters and state signals, and the sensors are connected with the universal control function module;
the general control function module is used for automatically controlling n draining pumps in the draining equipment and is connected with the man-machine interaction device.
The drainage pool is connected with drainage equipment through a first pipeline, and the drainage equipment is connected with the reservoir through a second pipeline.
The plurality of sensors are connected with the universal control functional module through an electric loop, the plurality of sensors are used for collecting the liquid level of the drainage pool 1, the pump running state, the pump fault state, the pump hand automatic state and the running times of the pump of the drainage equipment, and the running time of the pump is transmitted to the universal control functional module through the electric loop.
The general control function module is connected with the man-machine interaction device through a communication loop, receives drainage system control parameters set by the man-machine interaction device through the communication loop, and comprises start-stop parameters, pump station parameters and rotation parameters, and transmits drainage system state parameter information to the man-machine interaction device through the communication loop after processing according to the collected drainage tank liquid level and pump operation state, pump fault state, pump automatic state and pump operation times of drainage equipment which are received through the electric loop.
The start-stop parameters include: level 0 main pump set starting level H 0 Starting level H of 1-stage backup pump unit 1 Stop liquid level H of 1-stage backup pump set 1 Priming level H of' … … m stage arm pump set m Equal, m is a natural number, and the stop liquid level H of the 0-level main pump group 0 ' 1 stage backup pump set stop liquid level H 1 ' 1 stage backup pump set stop liquid level H 1 Stop level H of' … … m stage backup pump set m ' etc. (m is a natural number). Wherein H is 0 ’<H 0 <H 1 <H 2 <……<H m ，H 1 ’<H 1 ，……，H m ’<H m 。
The pump station parameters include: the total number N of drainage pumps of the drainage system and the number N of drainage pumps of the main pump group 0 Number N of drainage pumps of 1-stage pump group 1 Number N of drainage pumps of … … m-level standby pump unit m 。
The rotation parameters include: a pump fault state weight value a; a manual state weight value b of the pump; a weight value c of the number of pump operations; a weight value d of the pump run time; the running state weight value e of the pump, etc.
The functional structure of the general control functional module comprises a pump starting quantity calculating module, a rotation sequencing module and a pump starting and stopping control module;
the pump starting quantity calculating module is used for outputting the pump starting quantity x to the pump starting and stopping control module according to the drainage system starting and stopping parameters, the pump station parameters and the drainage pool liquid level H by adopting a pump starting quantity calculating method;
the rotation sequencing module is used for sequencing the rotation parameters of the drainage system and various working condition factors of all pumps of the drainage system: the pump running state, the pump fault state, the pump hand automatic state, the pump running times, the pump running time and the like of the drainage equipment adopt a priority wheel change sequencing method, and a rotation sequence is output to a start-stop pump control module; the rotation sequence is a pump number sequence array, and the rotation sequences are sequentially arranged according to the order of the priority of the drainage pump corresponding to the pump number from high to low.
The start-stop pump control module is used for receiving the information such as the start-up number x output by the start-up number calculation module, the rotation sequence output by the rotation sequencing module and the like, and outputting a drainage pump start-stop control signal to the drainage equipment by adopting a start-stop pump control method according to the state signals of all pumps of the drainage system under various working condition factors.
The man-machine interaction device is communicated with the universal control function module, and the drainage system control parameters set by a user through the man-machine interaction device, namely, start-stop parameters, pump station parameters and rotation parameters, are transmitted to the universal control function module, and meanwhile, the man-machine interaction device collects drainage system state parameter information sent by the universal control function module and performs graphical display.
The drainage system state parameter information comprises a rotation sequence, a drainage pool liquid level, a pump running state of drainage equipment, a pump fault state, a pump automatic state, the running times of a pump and the running time of the pump.
A modularized control method for a drainage pump comprises a pump starting quantity calculation method, a priority wheel change sequencing method and a pump starting and stopping control method;
a method for calculating the start-up quantity of a drainage pump of a drainage control system comprises the following steps:
step 1: the pump starting quantity calculation module is initialized, and an intermediate auxiliary control variable i is calculated 0 ＝i 1 ＝……＝i m =0, x=0, go to step 2. In step 1, i 0 、i 1 ……i m I as intermediate auxiliary control variable m Drainage pump number N for marking m-stage standby pump group m Whether the addition or subtraction of the number x of started pumps is participated or not, if i m =1, then N m The number x of pumps added; if i m =0, then N m Has been subtracted from the number x of pumps on.
Step 2: acquisition parameters H, H 0 、H 0 ’、H 1 、H 1 ’……H m 、H m ’、N、N 0 、N 1 ……N m And (3) entering a step 3. In step 2, level 0 main pump group starts level H 0 Starting level H of 1-stage backup pump unit 1 Stop liquid level H of 1-stage backup pump set 1 Priming level H of' … … m stage arm pump set m Equal (m is a natural number), 0-level main pump group stop liquid level H 0 ' 1 stage backup pump set stop liquid level H 1 ' 1 stage backup pump set stop liquid level H 1 Stop level H of' … … m stage backup pump set m ' m is a natural number. Wherein H is 0 ’<H 0 <H 1 <H 2 <……<H m ，H 1 ’<H 1 ，……，H m ’<H m 。
Step 3: the pump starting quantity calculating module detects whether H is detected>H 0 And i 0 =0, if, x=x+n 0 ，i 0 =1, go to step 4; if not, enter step 4.
Step 4: the pump starting quantity calculating module detects whether H is detected<H 0 ' and i 0 =1, if yes, x=x-N 0 ，i 0 =0, go to step 5; if not, go to step 5.
Step 5: the pump starting quantity calculating module detects whether H is detected>H 1 And i 1 =0, if, x=x+n 1 ，i 1 =1, go to step 6; if not, enter step 6.
Step 6: the pump starting quantity calculating module detects whether H is detected<H 1 ' and i 1 =1, if yes, x=x-N 1 ，i 1 =0, go to step 7; if not, enter step 7.
……
Step 2m+3, pump start number calculation module detects whether H>H m And i m =0, if, x=x+n m ，i m =1, go to 2m+4 steps; if not, enter 2m+4 step.
Step 2m+4, pump start number calculation module detects whether H is present<H m ' and i m =1, if yes, x=x-N m ，i m =0, go to 2m+5 steps; if not, enter 2m+5 step.
Step 2+5, starting the pump quantity calculation module to output x, and returning to the step 2.
A method for calculating the start-up quantity of drainage pump of drainage control system includes 2m+5 steps.
When m=0, namely the control system only has a main pump group and no 1-m-level standby pump group, the pump starting quantity calculating method specifically comprises 5 steps in total, wherein the 2m+3 steps are 3 rd steps, the 2m+4 steps are 4 th steps, and the 2m+5 steps are 5 th steps;
when m=1, namely, the control system only has a main pump group and 1-stage standby pump group and no 2-m-stage standby pump group, the method for calculating the number of pumps is specifically comprised of 7 steps in total, wherein 2m+3 steps are 5 th steps, 2m+4 th steps are 6 th steps, and 2m+5 th steps are 7 th steps;
when m=2, namely the control system only has a main pump group, a 1-stage standby pump group and a 2-stage standby pump group and no 3-m-stage standby pump group, the method for calculating the starting pump quantity specifically comprises 9 steps in total, wherein the 2m+3 steps are the 7 th step, the 2m+4 steps are the 8 th step, and the 2m+5 steps are the 9 th step;
and so on.
A drainage control system drainage pump priority wheel change sequencing method comprises the following steps:
step 1: the rotation sequencing module collects the total number N of drainage pumps of the drainage system;
step 2: the rotation sequencing module collects state signals of various working condition factors of all pumps, and calculates and determines various working condition values of all pumps;
step 3: the rotation sequencing module collects weight values of various working condition factors of all pumps;
step 4: the rotation sequencing module calculates the priority score of each pump according to the working condition values corresponding to various working condition factors of all the pumps and the corresponding weight values.
Step 5: the rotation sequencing module sequences the priority of all pumps in the system according to the priority score of each pump, and obtains a corresponding pump number sequence array according to the priority of the pumps from high to low;
step 6: the rotation sequencing module outputs a pump number sequence array.
Step 7: and (3) detecting the running states of all the pumps by the rotation sequencing module, and returning to the step (2) if the pumps stop running.
In the step 2, the multiple working condition factors include: pump running state, pump failure state, pump hand automatic state, pump running times, pump running time. The steps of the invention take the five working condition factors as examples, and the working condition factors can be expanded according to the actual application conditions during actual application.
According to various working condition factors, the various working condition values of all pumps are determined as follows:
in all pumps, if the pump is in an operating state, the working condition value V takes a value of 1; if the pump is in a non-running state, the working condition value V takes a value of 0. Let the working condition value of the n-type pump be V n . Where N.gtoreq.n.gtoreq.1.
In all pumps, if the pump is in a non-fault state, the working condition value X takes a value of 1; if the pump cannot work normally, the working condition value X takes on a value of 0. Let the working condition value of the n-type pump be X n . Where N.gtoreq.n.gtoreq.1.
In all pumps, if the manual and automatic state of the pump is 'automatic', the state working condition value Y takes a value of 1; if the manual and automatic state of the pump is manual, the working condition value Y of the state is 0. The reason for this is that the manual status of the pump is set to "automatic" priority over "manual". Let the working condition value of the n-type pump be Y n . Where N.gtoreq.n.gtoreq.1.
In all pumps, according to the pump operation state, the number of rising edges of the pump operation state can be counted to obtain the operation times of the pump, the operation times of the pump are ordered, and the operation times of the pump are sequentially valued as the working condition value Z of the pump times corresponding to the times from high to low1,2 … N … N-1, N. Wherein: n.gtoreq.n.gtoreq.1. Setting the frequency working condition value of the n-number pump as Z n 。
In all pumps, according to the running state of the pump, the running state accumulation duration time of the pump can be timed to obtain the running time of the pump, the running time of the pump is sequenced, and the time is sequentially 1,2 … N … N-1 and N from the long to the short corresponding pump times working condition value U. Where N.gtoreq.n.gtoreq.1. Let the number of times working condition value of n-number pump be U n 。
In the step 3, a fault state weight value a of the set pump is collected; a manual state weight value b of the pump; a weight value c of the number of pump operations; a weight value d of the pump run time; the pump operating state weight e.
The user sets the weight values corresponding to various working condition factors according to the self requirements, and generally, the more important the working condition factors are, the larger the influence is, and the larger the weight is. Normally, to ensure normal function, the necessary operating conditions include pump operating state, pump failure state, pump automatic state, and e > a > b. If the start and stop are controlled only according to the operation times of the pump, e > a > b > c > d=0; if start-stop is controlled only according to the running time of the pump, e > a > b > d > c=0; if the start and stop are controlled according to the operation times and the operation time of the pump and preferentially according to the operation times of the pump, e > a > b > c > d >0; if the start-stop is controlled according to the operation times and the operation time of the pump and preferentially according to the operation time of the pump, e > a > b > d > c >0.
In the step 4, the priority score m=ax+by+cz+du+ev of each pump is calculated; priority score M for pump n n ＝aX n +bY n +cZ n +dU n +eV n 。
In the step 5, the priority of the pumps is ordered according to the size of Mn, and M is set as the higher the priority score Mn of the n pumps is, the higher the priority is, and the more the pump number n is arranged at the front of the position of the queue n1 ≧M n2 ≧……≧M nN-1 ≧M nN According to the priority of the pump from high to low, the corresponding pump number sequence is as follows: { n 1 ，n 2 ，……，n N-1 ，n N ' record as a group team [ N ]]。
In the step 6, a pump number sequence is output: { n 1 ，n 2 ，……，n N-1 ，n N "array team [ N ]]。
The invention relates to a general drainage control system and a drainage pump control method, which have the following technical effects:
1) By adopting the drainage control system and the drainage pump control method, the problems that when the technology of a drainage system pump station is modified, the number of the 0-level main pump unit, each level standby pump unit and the number of the whole pump station drainage pumps are changed, the starting and stopping liquid levels of the 0-level main pump unit and each level standby pump unit are changed, and when the weight values corresponding to various working condition factors are changed, the control program is required to be rewritten or changed in a large scale can be solved. 2) The drainage pump control method is a portable, universal and modularized pump control method, can be flexibly expanded, can flexibly change the number of the 0-level main pump group, each level of backup pump group and the drainage pump of the whole pump station when the control system technology is modified, can flexibly change the starting and stopping liquid levels of the 0-level main pump group and each level of backup pump group, does not need to change or redesign a control program on a large scale when the starting and stopping liquid levels of various working condition factors are flexibly changed, and only needs to modify the pump station parameters, the starting and stopping parameters and the rotation parameters through a man-machine interaction device, thereby greatly saving manpower, material resources and financial resources.
3) The drainage pump control method has wide applicability. The start-stop parameters, the pump station parameters and the rotation parameters can be flexibly set according to actual needs, and the conditions are unlimited.
4) The pump starting and stopping number calculation module adopts a pump starting number calculation method, the rotation sequencing module adopts a priority wheel rotation sequencing method, and the pump starting and stopping control module adopts a pump starting and stopping control method, so that modularized programming is realized. After the modularized programming is realized, the single control function module has simple and efficient program, fewer execution sentences, low memory occupancy rate, short execution period and higher efficiency. After the modular programming is realized, the functions of the modules are relatively independent and stable, the modules are not easily influenced by the mutual coupling of other programs, the programs are easy to read and maintain, and the program running is not easy to make mistakes and fly away. After the modular programming is realized, the complex functions can be simplified, and the complex and difficult-to-realize functions are disassembled into simple and easy-to-realize sub-functions, so that the design, the extension and the derivatization are convenient.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic diagram of a drainage control system according to the present invention.
Fig. 2 is a schematic diagram of the general control function module structure of the present invention.
FIG. 3 is a flow chart of a method for calculating the number of started pumps according to the present invention.
Fig. 4 is a schematic flow chart of a priority round robin sequencing method according to the present invention.
FIG. 5 is a flow chart of a method for controlling a start-stop pump according to the present invention.
Detailed Description
As shown in fig. 1 and 2, a drainage control system comprising a multi-factor drainage pump comprises a drainage pool 1, a reservoir 2, a drainage device 4, a sensor 5, a general control function module 6, a man-machine interaction device 7, an electric circuit 8 and a communication circuit 9;
the drainage device 4 is used for pumping and draining the water stored in the drainage pool 1 to the reservoir 2;
the drainage device 4 comprises n drainage pumps, the numbers of the drainage pumps are 1# and 2# … … n #, the drainage device 4 is connected with a general control functional module 6, and the general control functional module 6 controls the drainage device 4 to start/stop; . The n draining pumps are divided into m+1 groups from high to low according to the priority of starting the pumps, namely a 0-level main pump group, a 1-level standby pump group and a … … m-level standby pump group, and m is a natural number.
The plurality of sensors 5 are respectively arranged on the drainage pool 1, the water reservoir 2 and the drainage equipment 4 and used for collecting control parameters and status signals, and the plurality of sensors 5 are connected with the universal control function module 6;
the general control function module 6 is used for automatically controlling n draining pumps in the draining equipment 4, and the general control function module 6 is connected with the man-machine interaction device 7.
The drainage tank 1 is connected with the drainage device 4 through the first pipeline 3, and the drainage device 4 is connected with the reservoir 2 through the second pipeline.
The plurality of sensors 5 are connected to the universal control function module 6 through the electrical circuit 8, and the plurality of sensors 5 are used for acquiring physical quantity parameters or status signals of the drainage device 4, such as the liquid level of the drainage tank 1, the pump running state of the drainage device 4, the pump failure state, the pump automatic state, the running times of the pump, the running time of the pump, and the like, and transmitting the signals to the universal control function module 6 through the electrical circuit 8.
Sensor 5, measuring pressure using a pressure transmitter with the brand KELLER, model PA.23SY/100 bar/81594.55; the operation state of the drainage pump of the drainage device 4 can be measured by adopting an auxiliary contact of a power loop contactor, the manual automatic state of the drainage pump can be measured by adopting a manual and automatic switching handle auxiliary contact, the operation times of the drainage pump can be measured by adopting a counting device, the operation time of the drainage pump can be measured by adopting a timer, and the fault state of the drainage pump is measured by adopting conventional technical means such as a built-in sensor of the drainage pump.
The general control function module 6 is connected with the man-machine interaction device 7 through the communication loop 9, and the general control function module 6 receives control parameters of the drainage system set by the man-machine interaction device 7 through the communication loop 9, such as: start-stop parameters, pump station parameters and rotation parameters, and according to drainage system state signals collected by the sensor 5 received by the electric loop 8, such as the liquid level H of the drainage tank 1 and state signals of various working conditions of all pumps, such as: the pump running state, the pump fault state, the pump automatic state, the pump running times, the pump running time and the like of the drainage equipment 4 are logically processed by adopting a drainage pump control method, then the n drainage pumps in the drainage equipment 4 are automatically controlled through the electric loop 8, and meanwhile, the drainage system state parameter information is transmitted to the human-computer interaction device 7 through the communication loop 9.
The general control function module 6 adopts a PCS-9150 series controller independently developed by Nanjing Rui relay protection electric Limited company.
The start-stop parameters are as follows: level 0 main pump set starting level H 0 Starting level H of 1-stage backup pump unit 1 Stop liquid level H of 1-stage backup pump set 1 Priming level H of' … … m stage arm pump set m Equal (m is a natural number), 0-level main pump group stop liquid level H 0 ' 1 stage backup pump set stopLiquid level H 1 ' 1 stage backup pump set stop liquid level H 1 Stop level H of' … … m stage backup pump set m ' etc. (m is a natural number). Wherein H is 0 ’<H 0 <H 1 <H 2 <……<H m ，H 1 ’<H 1 ，……，H m ’<H m 。
Pump station parameters are as follows: the total number N of drainage pumps of the drainage system and the number N of drainage pumps of the main pump group 0 Number N of drainage pumps of 1-stage pump group 1 Number N of drainage pumps of … … m-level standby pump unit m 。
Rotation parameters are as follows: a pump fault state weight value a; a manual state weight value b of the pump; a weight value c of the number of pump operations; a weight value d of the running times of the pump; the running state weight value e of the pump, etc.
The man-machine interaction device 7 communicates with the general control function module 6. The control parameters of the drainage system, such as start-stop parameters, pump station parameters and rotation parameters, set by a user through the man-machine interaction device 7 are transmitted to the universal control function module 6, and meanwhile, the man-machine interaction device 7 collects the drainage system state parameter information sent by the universal control function module 6, wherein the drainage system state parameter information comprises rotation sequences, the liquid level of the drainage tank 1, the pump running state of the drainage equipment 4, pump fault states, pump automatic states and pump running times, and pump running time, and graphical display is carried out.
The human interaction device 7 employs a touch screen of model TPC1570Gi of kunluki brand.
The electric loop 8 is connected with the sensor 5 and the universal control function module 6, and the drainage equipment 4 and the universal control function module 6, so that transmission of state signals and control signals is realized.
And the communication loop 9 is connected with the universal control function module 6 and the man-machine interaction device 7 to realize the transmission of control parameters and state information of the drainage system.
The functional structure of the general control functional module 6 comprises a pump starting quantity calculating module 10, a rotation sequencing module 11 and a pump starting and stopping control module 12;
the pump starting quantity calculating module 10 outputs the pump starting quantity x to the pump starting and stopping control module 12 according to the drainage system control parameters such as the starting and stopping parameters, the pump station parameters and the liquid level H of the pool 1 by adopting a pump starting quantity calculating method;
the rotation sequencing module 11 is used for sequencing the rotation parameters of the drainage system and various working condition factors of all pumps of the drainage system: and all pump multiple working condition factor state signals of the drainage system, such as pump running state, pump fault state, pump hand automatic state, pump running times, pump running time and the like of the drainage device 4, adopting a priority gear shift sequencing method, and outputting a gear shift sequence to the start-stop pump control module 12; the rotation sequence is a pump number sequence array, and the rotation sequences are sequentially arranged according to the order of the priority of the drainage pump corresponding to the pump number from high to low.
The start-stop pump control module 12 receives the information such as the start-stop pump number x output by the start-stop pump number calculation module 10, the rotation sequence output by the rotation sequencing module 11, and the like, and outputs a drain pump start-stop control signal to the drain equipment 4 by adopting a start-stop pump control method according to the state signals (the pump running states of the drain equipment 4) of all pumps of the drain system under various working condition factors.
The drainage pump control method comprises a pump starting quantity calculation method, a priority wheel switching sequencing method and a pump starting and stopping control method;
a method for calculating the start-up quantity of a drainage pump of a drainage control system comprises the following steps:
step 1: the pump start number calculation module 10 initializes an intermediate auxiliary control variable i 0 ＝i 1 ＝……＝i m =0, x=0, go to step 2. Meaning of each parameter representation referred to in step 1: i.e 0 、i 1 ……i m I as intermediate auxiliary control variable m Drainage pump number N for marking m-stage standby pump group m Whether the addition or subtraction of the number x of started pumps is participated or not, if i m =1, then N m The number x of pumps added; if i m =0, then N m Has been subtracted from the number x of pumps on.
Step 2: acquisition parameters H, H 0 、H 0 ’、H 1 、H 1 ’……H m 、H m ’、N、N 0 、N 1 ……N m Go to step 3. Meaning of each parameter representation referred to in step 2: level 0 main pump set starting level H 0 Starting level H of 1-stage backup pump unit 1 Stop liquid level H of 1-stage backup pump set 1 Priming level H of' … … m stage arm pump set m Equal (m is a natural number), 0-level main pump group stop liquid level H 0 ' 1 stage backup pump set stop liquid level H 1 ' 1 stage backup pump set stop liquid level H 1 Stop level H of' … … m stage backup pump set m ' etc. (m is a natural number). Wherein H is 0 ’<H 0 <H 1 <H 2 <……<H m ，H 1 ’<H 1 ，……，H m ’<H m 。
Step 3: the pump start number calculation module 10 detects whether or not H>H 0 And i 0 =0, if, x=x+n 0 ，i 0 =1, go to step 4; if not, enter step 4.
Step 4: the pump start number calculation module 10 detects whether or not H<H 0 ' and i 0 =1, if yes, x=x-N 0 ，i 0 =0, go to step 5; if not, go to step 5.
Step 5: the pump start number calculation module 10 detects whether or not H>H 1 And i 1 =0, if, x=x+n 1 ，i 1 =1, go to step 6; if not, enter step 6.
Step 6: the pump start number calculation module 10 detects whether or not H<H 1 ' and i 1 =1, if yes, x=x-N 1 ，i 1 =0, go to step 7; if not, enter step 7.
……
Step 2m+3, pump start number calculation module 10 detects whether H is present>H m And i m =0, if, x=x+n m ，i m =1, go to 2m+4 steps; if not, enter 2m+4 step.
Step 2m+4, pump start number calculation module 10 detects whether H is present<H m ' and i m =1, if yes, x=x-N m ，i m =0, go to 2m+5 steps; if not, enter 2m+5 step.
Step 2+5, the pump quantity calculating module 10 outputs x, and returns to step 2.
The method for calculating the start-up quantity of the drainage pump of the drainage control system specifically comprises the total of 2m+5 steps.
When m=0, namely the control system only has a main pump group and no 1-m-level standby pump group, the pump starting quantity calculating method specifically comprises 5 steps in total, wherein the 2m+3 steps are 3 rd steps, the 2m+4 steps are 4 th steps, and the 2m+5 steps are 5 th steps;
when m=1, namely, the control system only has a main pump group and 1-stage standby pump group and no 2-m-stage standby pump group, the method for calculating the number of pumps is specifically comprised of 7 steps in total, wherein 2m+3 steps are 5 th steps, 2m+4 th steps are 6 th steps, and 2m+5 th steps are 7 th steps;
when m=2, namely the control system only has a main pump group, a 1-stage standby pump group and a 2-stage standby pump group and no 3-m-stage standby pump group, the method for calculating the starting pump quantity specifically comprises 9 steps in total, wherein the 2m+3 steps are the 7 th step, the 2m+4 steps are the 8 th step, and the 2m+5 steps are the 9 th step;
and so on.
A drainage control system drainage pump priority wheel change sequencing method comprises the following steps:
step 1: the rotation sequencing module 11 collects the total number N of drainage pumps of the drainage system;
step 2: the rotation sequencing module 11 collects state signals of various working condition factors of all pumps, and calculates and determines various working condition values of all pumps;
step 3: the rotation sequencing module 11 collects weight values of various working condition factors of all pumps;
step 4: the rotation sequencing module 11 calculates the priority score of each pump according to the working condition values corresponding to the working condition factors of all the pumps and the corresponding weight values.
Step 5: the rotation sequencing module 11 sequences the priority of all pumps in the system according to the priority score of each pump, and obtains a corresponding pump number sequence array according to the priority of the pumps from high to low;
step 6: the rotation ordering module 11 outputs a pump number sequence array.
Step 7: the rotation sequencing module 11 detects the running state of all the pumps, and if any, the pumps stop running, and returns to step 2.
In the step 2, the multiple working condition factors include: pump running state, pump failure state, pump hand automatic state, pump running times, pump running time. The steps of the invention take the five working condition factors as examples, and the working condition factors can be expanded according to the actual application conditions during actual application.
According to various working condition factors, the various working condition values of all pumps are determined as follows:
in all pumps, if the pump is in an operating state, the working condition value V takes a value of 1; if the pump is in a non-running state, the working condition value V takes a value of 0. Let the working condition value of the n-type pump be V n . Where N.gtoreq.n.gtoreq.1.
In all pumps, if the pump is in a non-fault state, the working condition value X takes a value of 1; if the pump cannot work normally, the working condition value X takes on a value of 0. Let the working condition value of the n-type pump be X n . Where N.gtoreq.n.gtoreq.1.
In all pumps, if the manual and automatic state of the pump is 'automatic', the state working condition value Y takes a value of 1; if the manual and automatic state of the pump is manual, the working condition value Y of the state is 0. The reason for this is that the manual status of the pump is set to "automatic" priority over "manual". Let the working condition value of the n-type pump be Y n . Where N.gtoreq.n.gtoreq.1.
In all pumps, the number of rising edges of the operation state of the pump can be counted according to the operation state of the pump to obtain the operation times of the pump, the operation times of the pump are sequenced, and the working condition value Z of the pump times corresponding to the times from high to low sequentially takes the values of 1,2 … N … N-1 and N. Wherein: n.gtoreq.n.gtoreq.1. Setting the frequency working condition value of the n-number pump as Z n 。
In all pumps, according to the running state of the pump, the running state accumulation duration time of the pump can be timed to obtain the running time of the pump, the running time of the pump is sequenced, and the time is sequentially 1,2 … N … N-1 and N from the long to the short corresponding pump times working condition value U. Where N.gtoreq.n.gtoreq.1. Let the number of times working condition value of n-number pump be U n 。
In the step 3, a fault state weight value a of the set pump is collected; a manual state weight value b of the pump; a weight value c of the number of pump operations; a weight value d of the pump run time; the pump operating state weight e.
The user sets the weight values corresponding to various working condition factors according to the self requirements, and generally, the more important the working condition factors are, the larger the influence is, and the larger the weight is. Normally, to ensure normal function, the necessary operating conditions include pump operating state, pump failure state, pump automatic state, and e > a > b. If the start and stop are controlled only according to the operation times of the pump, e > a > b > c > d=0; if start-stop is controlled only according to the running time of the pump, e > a > b > d > c=0; if the start and stop are controlled according to the operation times and the operation time of the pump and preferentially according to the operation times of the pump, e > a > b > c > d >0; if the start-stop is controlled according to the operation times and the operation time of the pump and preferentially according to the operation time of the pump, e > a > b > d > c >0.
In the step 4, the priority score m=ax+by+cz+du+ev of each pump is calculated; priority score M for pump n n ＝aX n +bY n +cZ n +dU n +eV n 。
In the step 5, the priority of the pumps is ordered according to the size of Mn, and M is set as the higher the priority score Mn of the n pumps is, the higher the priority is, and the more the pump number n is arranged at the front of the position of the queue n1 ≧M n2 ≧……≧M nN-1 ≧M nN According to the priority of the pump from high to low, the corresponding pump number sequence is as follows: { n 1 ，n 2 ，……，n N-1 ，n N ' record as a group team [ N ]]。
In the step 6, a pump number sequence is output: { n 1 ，n 2 ，……，n N-1 ，n N "array team [ N ]]。
The detailed steps of the start-stop pump control method of the drainage pump are as follows:
1. the start-stop pump control module 12 collects the pump number sequence team [ N ], x and the operating status of the pump, and proceeds to step 2.
2. Among all pumps of the first x elements in pump number team [ N ], all pumps in the non-operational state are started. Expressed in language C-like form:
for(j＝0，j<x,j++)
{
if (the team [ j ] pump is in a non-running state) starts the team [ j ] pump;
}
and then proceeds to step 3.
3. After excluding the pumps of the first x elements of the pump number team [ N ], all pumps in operation are stopped among all the remaining pumps. Expressed in language C-like form:
for(j＝x，j<N,j++)
{
if (team [ j ] pump is in run state) stops team [ j ] pump;
}
and then returns to step 1.
In the method, j is an intermediate control variable and is a natural number.
Claims (2)
1. The utility model provides a general drainage control system, includes drainage equipment (4), sensor (5), general control function module (6), human-computer interaction device (7), its characterized in that:
the drainage device (4) is used for pumping and draining the water stored in the drainage pool (1) to the reservoir (2);
the drainage device (4) comprises n drainage pumps, the numbers of the drainage pumps are 1# and 2# … … n #, the drainage device (4) is connected with a general control functional module (6), and the general control functional module (6) controls the drainage device (4) to start/stop; the n draining pumps are divided into m+1 groups from high to low according to the priority of starting the pumps, namely a 0-level main pump group, a 1-level standby pump group and a … … m-level standby pump group, wherein m is a natural number;
the plurality of sensors (5) are respectively arranged on the drainage pool (1), the water reservoir (2) and the drainage equipment (4) and used for collecting control parameters and state signals, and the plurality of sensors (5) are connected with the universal control function module (6);
the general control function module (6) is used for automatically controlling n draining pumps in the draining equipment (4), and the general control function module (6) is connected with the man-machine interaction device (7);
the general control function module (6) is connected with the man-machine interaction device (7) through the communication loop (9), the general control function module (6) receives drainage system control parameters set by the man-machine interaction device (7) through the communication loop (9), the drainage system control parameters comprise start-stop parameters, pump station parameters and rotation parameters, and the drainage system state parameter information is transmitted to the man-machine interaction device (7) through the communication loop (9) after the pump operation time is processed according to the collected liquid level of the drainage tank (1) and the pump operation state, pump failure state, pump automatic state and pump operation times of the drainage equipment (4) through the electric loop (8);
the start-stop parameters include: level 0 main pump set starting level H 0 Starting level H of 1-stage backup pump unit 1 Starting liquid level H of … … m-level backup pump set m Equal, m is a natural number, and the stop liquid level H of the 0-level main pump group 0 ' 1 stage backup pump set stop liquid level H 1 Stopping liquid level H of', … … m-level backup pump set m ' m is a natural number;
wherein H is 0 ’<H 0 < H 1 < H 2 < ……<H m ，H 1 ’<H 1 ，……，H m ’<H m ；
The pump station parameters include: the total number N of drainage pumps of the drainage system and the number N of drainage pumps of the main pump group 0 Number N of drainage pumps of 1-stage pump group 1 Number N of drainage pumps of … … m-level standby pump unit m ；
The rotation parameters include: a pump fault state weight a, a pump manual state weight b, a pump running frequency weight c, a pump running time weight d and a pump running state weight e;
the functional structure of the general control functional module (6) comprises a pump starting quantity calculating module (10), a rotation sequencing module (11) and a pump starting and stopping control module (12);
the pump starting quantity calculating module (10) is used for outputting the pump starting quantity x to the pump starting and stopping control module (12) according to the drainage system starting and stopping parameters, the pump station parameters and the liquid level H of the drainage tank (1) by adopting a pump starting quantity calculating method;
the rotation sequencing module (11) is used for sequencing all the pump working condition factors of the drainage system according to rotation parameters of the drainage system and the rotation parameters of the drainage system: the pump running state, the pump fault state, the pump hand automatic state, the pump running times, the pump running time and the like of the drainage equipment (4) adopt a priority wheel switching sequence method, and output a switching sequence to the start-stop pump control module (12);
the start-stop pump control module (12) is used for receiving the information such as the start-up number x output by the start-up number calculation module (10), the rotation sequence output by the rotation sequencing module (11) and the like, and outputting a drainage pump start-stop control signal to the drainage equipment (4) by adopting a start-stop pump control method according to the state signals of various working condition factors of all pumps of the drainage system;
the method for calculating the start-up quantity of the drainage pump comprises the following steps:
step 1: the pump starting quantity calculation module (10) is initialized, and an intermediate auxiliary control variable i is obtained 0 =i 1 =……=i m =0, x=0, go to step 2; in step 1, i 0 、i 1 ……i m I as intermediate auxiliary control variable m Drainage pump number N for marking m-stage standby pump group m Whether the addition or subtraction of the number x of started pumps is participated or not, if i m =1, then N m The number x of pumps added; if i m =0, then N m Has been subtracted from the number of pumps on x;
step 2: acquisition parameters H, H 0 、H 0 ’、 H 1 、H 1 ’……H m 、H m ’、N、 N 0 、N 1 ……N m Step 3, entering a step;
step 3: the pump starting quantity calculating module (10) detects whether H is the same as the pump starting quantity>H 0 And i 0 =0, if, x=x+n 0 ，i 0 =1, go to step 4; if not, entering a step 4;
step 4: the pump starting quantity calculating module (10) detects whether H is the same as the pump starting quantity<H 0 ' and i 0 =1, if yes, x=x-N 0 ，i 0 =0, go to step 5; if not, the method comprises the steps of,step 5, entering a step;
step 5: the pump starting quantity calculating module (10) detects whether H is the same as the pump starting quantity>H 1 And i 1 =0, if, x=x+n 1 ，i 1 =1, go to step 6; if not, entering a step 6;
step 6: the pump starting quantity calculating module (10) detects whether H is the same as the pump starting quantity<H 1 ' and i 1 =1, if yes, x=x-N 1 ，i 1 =0, go to step 7; if not, entering a step 7;
……
step 2m+3, pump start number calculation module (10) detects whether H is present>H m And i m =0, if, x=x+n m ，i m =1, go to 2m+4 steps; if not, enter 2m+4 step;
step 2m+4, pump start number calculation module (10) detects whether H is present<H m ' and i m =1, if yes, x=x-N m ，i m =0, go to 2m+5 steps; if not, enter 2m+5 step;
step 2+5, the pump starting quantity calculation module (10) outputs x, and the step 2 is returned;
when m=0, namely the control system only has a main pump group and no 1-m-level standby pump group, the pump starting quantity calculating method specifically comprises 5 steps in total, wherein the 2m+3 steps are 3 rd steps, the 2m+4 steps are 4 th steps, and the 2m+5 steps are 5 th steps;
when m=1, namely, the control system only has a main pump group and 1-stage standby pump group and no 2-m-stage standby pump group, the method for calculating the number of pumps is specifically comprised of 7 steps in total, wherein 2m+3 steps are 5 th steps, 2m+4 th steps are 6 th steps, and 2m+5 th steps are 7 th steps;
when m=2, namely, the control system only has a main pump group, a 1-stage standby pump group and a 2-stage standby pump group and no 3-m-stage standby pump group, the method for calculating the starting pump quantity specifically comprises 9 steps in total, wherein the 2m+3 steps are the 7 th steps, the 2m+4 steps are the 8 th steps, and the 2m+5 steps are the 9 th steps.
2. The drain pump priority wheel shift sequencing method based on the universal drain control system according to claim 1, comprising the steps of:
step 1: the rotation sequencing module (11) collects the total number N of drainage pumps of the drainage system;
step 2: the rotation sequencing module (11) collects state signals of various working condition factors of all pumps, and calculates and determines various working condition values of all pumps;
step 3: the rotation sequencing module (11) collects weight values of various working condition factors of all pumps;
step 4: the rotation sequencing module (11) calculates the priority score of each pump according to the working condition values corresponding to various working condition factors of all pumps and the corresponding weight values;
step 5: the rotation sequencing module (11) sequences the priority of all pumps in the system according to the priority score of each pump, and obtains a corresponding pump number sequence array according to the priority of the pumps from high to low;
step 6: the rotation sequencing module (11) outputs a pump number sequence array;
step 7: the rotation sequencing module (11) detects the running states of all pumps, and if the pumps stop running, the step 2 is returned;
in the step 2, the multiple working condition factors include: pump running state, pump fault state, pump hand automatic state, pump running times, pump running time;
according to various working condition factors, the various working condition values of all pumps are determined as follows:
in all pumps, if the pump is in an operating state, the working condition value V takes a value of 1; if the pump is in a non-running state, the value of the working condition value V is 0; let the working condition value of the n-type pump be V n The method comprises the steps of carrying out a first treatment on the surface of the Wherein N > 1;
in all pumps, if the pump is in a non-fault state, the working condition value X takes a value of 1; if the pump cannot work normally, the value of the working condition value X is 0; let the working condition value of the n-type pump be X n The method comprises the steps of carrying out a first treatment on the surface of the Wherein N > 1;
in all pumps, if the manual and automatic state of the pump is 'automatic', the state working condition value Y takes a value of 1; if the manual and automatic state of the pump is manual, the working condition value Y of the state is 0; the reason for this is that the manual status of the pump is set to "automatic" with a higher priority than "manual";let the working condition value of the n-type pump be Y n The method comprises the steps of carrying out a first treatment on the surface of the Wherein N > 1;
in all pumps, according to the operation state of the pump, the number of rising edges of the operation state of the pump can be counted to obtain the operation times of the pump, the operation times of the pump are ordered, and the operation times of the pump are sequentially valued to be 1,2 … N … N-1 and N from the high to the low corresponding operation times of the pump working condition value Z; wherein: n is larger than or equal to N is larger than or equal to 1; setting the frequency working condition value of the n-number pump as Z n ；
In all pumps, according to the running state of the pump, the running state accumulated duration time of the pump can be timed to obtain the running time of the pump, the running time of the pump is sequenced, and the time is sequentially 1,2 … N … N-1 and N from the long to the short corresponding pump times working condition value U; wherein N > 1; let the number of times working condition value of n-number pump be U n ；
In the step 3, a fault state weight value a of the set pump is collected; a manual state weight value b of the pump; a weight value c of the number of pump operations; a weight value d of the pump run time; an operating state weight value e of the pump;
in order to ensure normal functions, the essential working condition factors include the running state of the pump, the pump failure state and the automatic state of the pump hand, and e is more than a and more than b; if the start and stop are controlled only according to the operation times of the pump, e > a > b > c > d=0; if start-stop is controlled only according to the running time of the pump, e > a > b > d > c=0; if the start and stop are controlled according to the operation times and the operation time of the pump and preferentially according to the operation times of the pump, e > a > b > c > d >0; if the start and stop are controlled according to the operation times and the operation time of the pump and preferentially according to the operation time of the pump, e > a > b > d > c >0;
in the step 4, the priority score m=ax+by+cz+du+ev of each pump is calculated; priority score M for pump n n =aX n +bY n +cZ n +dU n +eV n ；
In the step 5, the priority of the pumps is ordered according to the size of Mn, and the higher the priority score Mn of the n pumps is, the higher the priority is, and the more the pump number n is arranged at the front of the position of the queue, the more the priority score Mn of the n pumps isAnd the pump number sequence is corresponding to the priority of the pump from high to low: { n 1 ，n 2 ，……，n N-1 ，n N ' record as a group team [ N ]]；
In the step 6, a pump number sequence is output: { n 1 ，n 2 ，……，n N-1 ，n N "array team [ N ]]。
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