CN110942214A - Water plant filter tank backwashing scheduling optimization method and system - Google Patents
Water plant filter tank backwashing scheduling optimization method and system Download PDFInfo
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- 238000011001 backwashing Methods 0.000 title claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005457 optimization Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 230000000737 periodic effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 238000012163 sequencing technique Methods 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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Abstract
The invention provides a method and a system for optimizing backwashing scheduling of a filter tank of a water plant, wherein the method comprises the steps of obtaining backwashing conditions of the filter tank to form a backwashing application instruction with priority; the invention provides a plurality of conditions for backwashing, different priorities are set for the conditions under different conditions, when a plurality of filters are queued for waiting, the priority is higher than that of all waiting filters, and the filters are directly queued to the front so as to embody urgency and importance, N filters and shared equipment are reasonably scheduled for coordinated use, priority treatment urgency is fully embodied, and the system runs at high efficiency under the condition of ensuring safety.
Description
Technical Field
The invention relates to the technical field of water plant filter tanks, in particular to a water plant filter tank backwashing scheduling optimization method and a system thereof.
Background
The water plant prepares raw water into drinkable tap water, and the raw water is supplied after being distributed, added with drugs, precipitated and filtered to be disinfected, wherein the filtering is a key core step of the effluent quality. In order to meet the requirement, when the filter tank is used for filtering, if the water outlet requirement cannot be met, the quartz sand in the filter tank needs to be backwashed, so that the filter tank can remove impurities, and the use requirement of water production is met again.
At present, when the filter tanks are backwashed, the filter tanks are backwashed sequentially according to the queuing sequence, so that the filter tanks needing emergency treatment cannot be backwashed in time, and the filter tanks cannot be dispatched reasonably.
Disclosure of Invention
The invention provides a water plant filter backwash scheduling optimization method and a system thereof, which aim to solve the problems in the background technology.
In order to solve the technical problems, the invention adopts the following technical scheme:
a backwash scheduling optimization method for a filter tank of a water plant comprises the following steps:
acquiring a backwashing condition of the filter tank to form a backwashing application instruction with priority;
and comparing the back flush application instruction with the priority with the queued back flush application instruction with the priority, and re-queuing according to the priority of the back flush application instruction.
Further, the backwashing conditions specifically include manual operation, turbidity alarm, head loss and periodic timing.
Further, the specific method for obtaining the backwashing conditions of the filter tank to form the backwashing application instruction with priority comprises the following steps:
if the backwashing condition is manual, judging that the backwashing application instruction of the filter tank is low;
if the backwashing condition is a turbidity alarm, judging that the backwashing application instruction of the filter tank is a middle level;
if the backwashing condition is water head loss, judging that the backwashing application instruction of the filter tank is high;
and if the backwashing condition is periodic timing, judging that the backwashing application instruction of the filter tank is the highest level.
Further, the specific method for re-queuing according to the priority of the backwash application instruction comprises the following steps:
if the back washing application instruction does not exist in the queuing queue, the current back washing application instruction is directly arranged in a first queue of the queue;
and if the back flush application instruction exists in the queuing team, judging the current back flush application instruction and the back flush application instruction in the queuing team, and re-queuing.
Further, if a backwash application instruction exists in the queuing team, the specific method for judging the current backwash application instruction and the backwash application instruction in the queuing team and re-queuing comprises the following steps:
judging whether the filter tank number of the current backwash application instruction exists in a queue, if not, performing priority judgment on the current backwash application instruction and the backwash application instruction in the queue and re-queuing, if so, performing priority judgment on the current backwash application instruction and the backwash application instruction with the same filter tank number in the queue to obtain a final backwash application instruction of the filter tank, and performing priority judgment on the final backwash application instruction and the backwash application instruction in the queue and re-queuing.
Further, the method for judging whether the filter tank number of the current backwash application instruction exists in the queue includes judging whether the same filter tank number exists in the current queue through the filter tank number, if so, registering, otherwise, unregistering.
Further, after the priority judgment is performed on the current backwash application instruction and the backwash application instruction with the same filter tank number in the team, the specific method for obtaining the final backwash application instruction of the filter tank is as follows:
and carrying out priority comparison on the current backwash application instruction and the backwash application instruction with the same filter tank number in the queue, deleting the backwash application instruction with the same filter tank number in the queue if the backwash application instruction with the same filter tank number in the queue is higher than the backwash application instruction with the same filter tank number in the queue, wherein the current backwash application instruction is the final backwash application instruction of the filter tank, discarding the current backwash application instruction if the backwash application instruction with the same filter tank number in the queue is equal to or lower than the backwash application instruction with the same filter tank number in the queue, and the backwash application instruction with the same filter tank number in the queue is the final backwash application instruction of the filter tank.
A water plant filter back flush scheduling optimizing system comprises:
the back washing application instruction module is used for acquiring back washing conditions of the filter tank to form back washing application instructions with priorities, uploading the back washing application instructions to the main controller, acquiring the back washing application instructions fed back by the main controller, judging, and triggering the filter tank to carry out back washing;
and the main controller is used for comparing the back flush application instructions with the priority with the queued back flush application instructions with the priority and re-queuing according to the priority of the back flush application instructions.
Further, the backwash application instruction module comprises:
the back flush application instruction module comprises:
the acquisition unit is used for acquiring a backwashing application instruction of the filter tank which starts water production and uploading the backwashing application instruction to the judgment unit;
the judgment unit is used for judging the condition for triggering the backwashing application instruction, forming a backwashing application instruction with priority and uploading the backwashing application instruction to the main controller;
and the triggering unit is used for acquiring whether the back washing application instruction sent by the main controller is the back washing application instruction of the filter tank or not and starting the filter tank to carry out back washing.
Further, the master includes:
the comparison unit is used for acquiring the back flush application instructions with the priority, comparing the back flush application instructions with the queued back flush application instructions with the priority and sequencing the back flush application instructions;
and the feedback unit is used for acquiring the back flush application instruction at the forefront of the team and uploading the back flush application instruction to the back flush application instruction module.
According to the technical scheme, the invention has the following beneficial effects: the invention provides various conditions for backwashing, different priorities are set for various conditions under different conditions, when a plurality of filters are queued for waiting, the priority is higher than that of all waiting filters, and the filters are directly queued to the front so as to reflect urgency and importance, N filters and shared equipment are reasonably scheduled for coordinated use, the urgency of preferential treatment is fully reflected, and the system is operated at high efficiency under the condition of ensuring safety.
Drawings
FIG. 1 is a schematic diagram of a backwash application command data flow according to the present invention.
Detailed Description
The following describes the optimal method and system for water plant filter backwash scheduling according to the preferred embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1, a backwash scheduling optimization method for a filter tank of a water plant includes the following steps:
step one, judging whether a backwashing application instruction is triggered or not for a filter tank which starts water production, if the filter tank triggers any one of four triggering conditions (the four triggering conditions comprise manual operation, turbidity alarm, head loss and periodic timing), forming a backwashing application instruction with priority, wherein the four triggering conditions are mutually independent, the priority of the backwashing triggering conditions is manual operation, turbidity alarm, head loss and periodic timing from low to high, the backwashing application instruction of the filter tank consists of three digits, and hundred digits are priority types; the units and the tens are the serial numbers of the filter;
step two, registering the acquired backwash application instruction into a queuing group, and if the backwash application instruction does not exist in the queuing group, directly discharging the current backwash application instruction into a first queue of the queue;
if the back flushing application instruction exists in the queue, judging whether the same filter tank number exists in the current queue or not through the filter tank number, if the same filter tank number does not exist, the back flushing application instruction is not registered, performing priority positioning on the current back flushing application instruction in the queue, positioning a lower-level position closest to the current back flushing application instruction, uniformly shifting the position and subsequent back flushing application instructions thereof by one position, inserting a new application instruction, if the same filter tank number exists, the back flushing application instruction is registered, performing priority comparison on the current back flushing application instruction and the back flushing application instruction with the same filter tank number in the queue, if the same filter tank number exists in the queue, deleting the back flushing application instruction with the same filter tank number in the queue, and taking the current back flushing application instruction as the final application instruction of the filter tank, and performing priority positioning on the current backwash application instruction, positioning a lower-level position closest to the current backwash application instruction, uniformly shifting the position and subsequent backwash application instructions thereof by one position, inserting a new application instruction, discarding the current backwash application instruction if the position and the subsequent backwash application instructions are equal to or lower than the backwash application instruction with the same filter tank number in the team, wherein the backwash application instruction with the same filter tank number in the team is the final backwash application instruction of the filter tank, and the re-queuing is not needed.
A backwashing scheduling optimization system for a filter tank of a water plant comprises a backwashing application instruction module and a main controller, wherein the backwashing application instruction module comprises an acquisition unit, a judgment unit and a trigger unit, the acquisition unit acquires a backwashing application instruction of the filter tank which starts water production and uploads the instruction to the judgment unit, the judgment unit judges the condition of triggering the backwashing application instruction, a backwashing application instruction with priority is formed and uploaded to the main controller, and a monitoring trigger unit acquires whether the backwashing application instruction sent by the main controller is the backwashing application instruction of the filter tank and starts the filter tank to backwash;
the main controller comprises a comparison unit and a feedback unit, wherein the comparison unit acquires a backwash application instruction with priority and compares the backwash application instruction with a queued backwash application instruction with priority to reorder, and the feedback unit acquires the foremost backwash application instruction in the team and uploads the backwash application instruction to the trigger unit.
The working process is as follows:
at the master, the state and feedback are marked as
And receiving the mark
Feedback mark of backwashing application instruction module
And common reception mark
The queue table of the main controller is marked as W, the number of the back flush application instructions registered in the queue table is set to be M, the back flush application instruction area of the filter tank received by the main controller is set to be L, and the data of the water production unit of the filter tank is set to be N; the filter unit normally starts the water production and the conditions are satisfied: the water inlet valve plate door is opened, the water outlet valve is opened, the water level of the filter tank reaches the normal operation condition, and the filter tank is in the closed-loop automatic adjustment flow of the water level and the water outlet valve; when water is normally produced, the filter backwash triggering condition starts to carry out circular judgment, the turbidity is over-limit, the head loss alarm and the timing time are mutually independent to carry out judgment, and the manual condition is mutually and independently input through the outside;
in order to meet the judgment of the main controller on the filter tank and the priority condition, the filter tank application instruction consists of three-bit marks, and the hundred-bit mark is priority A1、A2、A3、A4(wherein A is1Representing the period timing, A2Representing head loss, A3Represents a turbidity alarm, A4Representing manual), units and tens are filter chamber marksB1B2(ii) a After the filter pool triggers the condition, the back flush application instruction is written into the feedback mark of the back flush application instruction module according to the appointed structure
In, one-way synchronization to master receive tag
Corresponding to the filter area;
comparing unit pair receiving mark
Internal filter instruction and feedback flags
Judging, and processing the taken back washing application instruction according to the following modes:
1.1, determining whether a current queue list has a registered instruction, and directly arranging the current backwash application instruction into a first queue of the queue when M is equal to 0;
2.1 when M is greater than 0, extracting the filter tank number of the current backwash application instruction, judging whether the current queue has the same filter tank number or not, if not, the backwash application instruction is not registered, taking out the priority mark of the current backwash application instruction, performing priority positioning on the current backwash application instruction in the queue through the priority mark, positioning the lower-level position closest to the current backwash application instruction, uniformly shifting the position and the subsequent backwash application instructions by one, inserting a new application instruction, if the same filter tank number exists, registering the backwash application instruction, taking out the priority mark of the current backwash application instruction, performing backwash comparison on the current backwash application instruction and the application instruction with the same filter tank number in the queue through the priority mark, and deleting the same filter tank number in the backwash application queue if the backwash application instruction with the same filter tank number exists in the queue, the current backwash application instruction is the final backwash application instruction of the filter tank, priority positioning is carried out on the current backwash application instruction, a lower-grade position closest to the current backwash application instruction is positioned, the position and subsequent backwash application instructions are uniformly shifted by one position and inserted into a new application instruction, if the position is equal to or lower than the backwash application instruction with the same filter tank number in a team, the current backwash application instruction is discarded, and the backwash application instruction with the same filter tank number in the team is the final backwash application instruction of the filter tank without re-queuing.
The shared equipment needed to be used in the filter tank backwashing process is uniformly scheduled by the main controller, and when the main controller does not operate currently and the queue table has a registration instruction, M is used>0, taking out the foremost backwash application instruction in the queue list, and sending the backwash application instruction area of the filter tank in the structure to the main controller
In the marking, the filters are synchronized to a common reception mark
Monitoring
Marking the feedback sending state of each filter; trigger unit judges common receiving mark
If the sent filter tank mark is given to the user, the backwashing process is started after the determination, and the process state and the common equipment instruction are synchronously sent to the backwashing application instruction and the feedback mark
And feeding back to the main controller, and when the flow execution of the filter tank is finished, the main controller monitors and exits monitoring of the current filter tank to prepare for next cycle until the queue list is empty or is continuously and circularly executed in sequence.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. A backwash scheduling optimization method for a filter tank of a water plant is characterized by comprising the following steps:
acquiring a backwashing condition of the filter tank to form a backwashing application instruction with priority;
and comparing the back flush application instruction with the priority with the queued back flush application instruction with the priority, and re-queuing according to the priority of the back flush application instruction.
2. The water plant filter backwash scheduling optimization method according to claim 1, characterized in that: the backwash conditions specifically include manual, turbidity alarm, head loss and periodic timing.
3. The water plant filter backwash scheduling optimization method according to claim 2, characterized in that: the specific method for obtaining the backwashing conditions of the filter tank to form the backwashing application instruction with the priority comprises the following steps:
if the backwashing condition is manual, judging that the backwashing application instruction of the filter tank is low;
if the backwashing condition is a turbidity alarm, judging that the backwashing application instruction of the filter tank is a middle level;
if the backwashing condition is water head loss, judging that the backwashing application instruction of the filter tank is high;
and if the backwashing condition is periodic timing, judging that the backwashing application instruction of the filter tank is the highest level.
4. The water plant filter backwash scheduling optimization method according to claim 1, characterized in that: the specific method for re-queuing according to the priority of the backwash application instruction comprises the following steps:
if the back washing application instruction does not exist in the queuing queue, the current back washing application instruction is directly arranged in a first queue of the queue;
and if the back flush application instruction exists in the queuing team, judging the current back flush application instruction and the back flush application instruction in the queuing team, and re-queuing.
5. The water plant filter backwash scheduling optimization method according to claim 4, characterized in that: if the back flush application instruction exists in the queuing team, the specific method for judging the current back flush application instruction and the back flush application instruction in the queuing team and re-queuing is as follows:
judging whether the filter tank number of the current backwash application instruction exists in a queue, if not, performing priority judgment on the current backwash application instruction and the backwash application instruction in the queue and re-queuing, if so, performing priority judgment on the current backwash application instruction and the backwash application instruction with the same filter tank number in the queue to obtain a final backwash application instruction of the filter tank, and performing priority judgment on the final backwash application instruction and the backwash application instruction in the queue and re-queuing.
6. The water plant filter backwash scheduling optimization method according to claim 5, characterized in that: the method for judging whether the filter tank number of the current backwashing application instruction exists in a queuing team is to judge whether the same filter tank number exists in the current queue through the filter tank number, if so, the filter tank number is registered, otherwise, the filter tank number is not registered.
7. The water plant filter backwash scheduling optimization method according to claim 5, characterized in that: the specific method for obtaining the final backwashing application instruction of the filter tank after carrying out priority judgment on the current backwashing application instruction and the backwashing application instruction with the same filter tank number in the team is as follows:
and carrying out priority comparison on the current backwash application instruction and the backwash application instruction with the same filter tank number in the queue, deleting the backwash application instruction with the same filter tank number in the queue if the backwash application instruction with the same filter tank number in the queue is higher than the backwash application instruction with the same filter tank number in the queue, wherein the current backwash application instruction is the final backwash application instruction of the filter tank, discarding the current backwash application instruction if the backwash application instruction with the same filter tank number in the queue is equal to or lower than the backwash application instruction with the same filter tank number in the queue, and the backwash application instruction with the same filter tank number in the queue is the final backwash application instruction of the filter tank.
8. The utility model provides a water plant filtering pond back flush scheduling optimizing system which characterized in that includes:
the back washing application instruction module is used for acquiring back washing conditions of the filter tank to form back washing application instructions with priorities, uploading the back washing application instructions to the main controller, acquiring the back washing application instructions fed back by the main controller, judging, and triggering the filter tank to carry out back washing;
and the main controller is used for comparing the back flush application instructions with the priority with the queued back flush application instructions with the priority and re-queuing according to the priority of the back flush application instructions.
9. The water plant filter backwash scheduling optimization system according to claim 8, wherein: the backwash application instruction module comprises: the acquisition unit is used for acquiring a backwashing application instruction of the filter tank which starts water production and uploading the backwashing application instruction to the judgment unit;
the judgment unit is used for judging the condition for triggering the backwashing application instruction, forming a backwashing application instruction with priority and uploading the backwashing application instruction to the main controller;
and the triggering unit is used for acquiring whether the back washing application instruction sent by the main controller is the back washing application instruction of the filter tank or not and starting the filter tank to carry out back washing.
10. The water plant filter backwash scheduling optimization system according to claim 8, wherein: the master controller includes:
the comparison unit is used for acquiring the back flush application instructions with the priority, comparing the back flush application instructions with the queued back flush application instructions with the priority and sequencing the back flush application instructions;
and the feedback unit is used for acquiring the back flush application instruction at the forefront of the team and uploading the back flush application instruction to the back flush application instruction module.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112001612A (en) * | 2020-08-12 | 2020-11-27 | 中水三立数据技术股份有限公司 | Multi-filter backwash queue queuing method for water plant |
| CN117547899A (en) * | 2024-01-12 | 2024-02-13 | 云翔赛博(山东)数字技术有限公司 | Method and system for overall queuing, processing and unloading based on filter press |
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| US5374351A (en) * | 1993-07-27 | 1994-12-20 | D & J Filtration Systems | Filter backflushing system |
| CN108563495A (en) * | 2018-04-08 | 2018-09-21 | 郑州云海信息技术有限公司 | The cloud resource queue graded dispatching system and method for data center's total management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112001612A (en) * | 2020-08-12 | 2020-11-27 | 中水三立数据技术股份有限公司 | Multi-filter backwash queue queuing method for water plant |
| CN117547899A (en) * | 2024-01-12 | 2024-02-13 | 云翔赛博(山东)数字技术有限公司 | Method and system for overall queuing, processing and unloading based on filter press |
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Application publication date: 20200331 |