CN106351289A - Pump dispatching method for multi-split water supply system - Google Patents
Pump dispatching method for multi-split water supply system Download PDFInfo
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- CN106351289A CN106351289A CN201610759664.5A CN201610759664A CN106351289A CN 106351289 A CN106351289 A CN 106351289A CN 201610759664 A CN201610759664 A CN 201610759664A CN 106351289 A CN106351289 A CN 106351289A
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- pump
- queue
- state
- numbering
- threshold value
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Structural Engineering (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a pump dispatching method for a multi-split water supply system. The pump dispatching method includes the steps: establishing serial numbers for all pumps of the multi-split water supply system; respectively pressing the serial numbers of the all pumps into shut-off pump queues, variable-frequency pump queues and general pump queues according to actual working states of each pump; dispatching the all pumps by a pump dispatching state machine; judging whether a first state conversion condition or a second state conversion condition is met or not by the pump dispatching state machine under a waiting state, entering a pump adding state and executing a pump adding operation if the first state conversion condition is met, returning the waiting state after the pump adding operation is finished, entering a pump decreasing state and executing a pump decreasing operation if the second state conversion condition is met, and returning to the waiting state after the pump decreasing operation is finished. The pump dispatching state machine comprises the waiting state, the pump adding state and the pump decreasing state. The pump dispatching method is easy to implement and orderly in dispatching, and flexible configuration can be achieved according to different numbers of pumps on site.
Description
Technical field
The present invention relates to one drags the pump dispatching method of many water systems.
Background technology
Existing one drags many water systems mainly to include plc controller, converter, water pump, control water pump to access power frequency electric
The water pump control circuit of the outfan of net or converter and the pressure transducer for measuring the water pressure in pipeline, above-mentioned
Water pump control circuit be generally made up of two groups of A.C. contactors, one group of A.C. contactor is connected to the input of electrical network and water pump
Between, another group of A.C. contactor is connected between the outfan of converter and the input of water pump.By by pressure transducer
With setting pressure ratio relatively, closed loop control obtains frequency converter frequency and gives the pressure detecting.
For one drags many water systems, a vital task of the control software of plc controller is exactly to complete frequency conversion
Pump and the scheduler task of general pump, with ensure multiple pumps orderly carry out start and stop, and carry out converting operation and power frequency operation.Tradition
Dispatching method implement more complicated, logic is unintelligible.And once if increase and decrease demand pump is changed, software
Change than larger.
Content of the invention
The technical problem to be solved is to provide one kind to be easily achieved, dispatch in order, can according to scene not
A pump dispatching method dragging many water systems with the pump flexible configuration of quantity.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The one pump dispatching method dragging many water systems, comprises the following steps:
Set up numbering for all pumps dragging many water systems；
The numbering of all pumps is respectively pressed into shutdown pump queue, variable frequency pump queue and power frequency by the actual working state according to each pump
Pump queue；Shut down pump queue, variable frequency pump queue and general pump queue in pump be respectively at stopped status, converting operation state and
The quantity of the pump numbering in power frequency operation state, and variable frequency pump queue is one, shuts down pump queue and the pump of general pump queue is compiled
The sequencing of number enqueue enters the sequencing of stopped status respectively with pump and pump enter power frequency operation state priority suitable
Sequence is consistent；
Complete the scheduling of all pumps by pump dispatch state machine；Wherein, pump dispatch state machine include waiting state, plus pump state and
Subtract pump state；Pump dispatch state machine judges whether first state switch condition or the second state transition condition become in the wait state
Vertical, if first state switch condition is set up, enter plus pump state, execute plus pump operated, and complete plus return after pump operated
Return waiting state, if the second state transition condition is set up, enter and subtract pump state, execution subtracts pump operated, and completes to subtract pump
State is returned to waiting for after operation；Plus pump operated inclusion: take out a pump numbering pump queue from shutting down；By in variable frequency pump queue
In pump numbering press-in general pump queue；By from the pump numbering press-in variable frequency pump queue shutting down taking-up in pump queue；Traversal is shut down
The numbering of all pumps in pump queue, variable frequency pump queue and general pump queue, obtains controlling the control of the water pump control circuit of each pump
System order；Subtract pump operated inclusion: take out a pump numbering from general pump queue, and be pressed in shutdown pump queue；Traversal is shut down
The numbering of all pumps in pump queue, variable frequency pump queue and general pump queue, obtains controlling the control of the water pump control circuit of each pump
System order.
Due to present invention employs above technical scheme, its produce technique effect it is apparent that
1st, the present invention can switch in an orderly manner to water pump, and switch logic is clear, need not be changed when the quantity of pump increases and decreases
Become scheduling flow, the requirement in quantity flexible configuration for the Different field difference pump can be met；
2nd, the present invention passes through to create shutdown pump queue, makes the water pump of the downtime length water shorter than downtime in scheduling
Pump is introduced into power frequency operation state, and such that it is able to prevent the water pump from working long hours, other water pumps do not work for a long time, occurs
The phenomenon got rusty.
Brief description
Fig. 1 shows the schematic flow sheet of the according to an embodiment of the invention one pump dispatching method dragging many water systems.
Fig. 2 shows the schematic diagram of the State Transferring of pump dispatch state machine according to an embodiment of the invention.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 shows the schematic flow sheet of the according to an embodiment of the invention one pump dispatching method dragging many water systems.
Fig. 2 shows the schematic diagram of the State Transferring of pump dispatch state machine according to an embodiment of the invention.Refer to Fig. 1 and Fig. 2, root
According to the one of one embodiment of the invention pump dispatching method dragging many water systems, comprise the following steps:
Step a, all pumps of many water systems are dragged to set up numbering for one；
Step b, the numbering of all pumps is respectively pressed into by shutdown pump queue, variable frequency pump queue according to the actual working state of each pump
With general pump queue；The pump shut down in pump queue, variable frequency pump queue and general pump queue is respectively at stopped status, converting operation
The quantity of the pump numbering in state and power frequency operation state, and variable frequency pump queue is one, shuts down pump queue and general pump queue
The sequencing of pump numbering enqueue enter the sequencing of stopped status with pump respectively and pump enters power frequency operation state
Sequencing is consistent；
Step c, complete the scheduling of all pumps by pump dispatch state machine；Wherein, pump dispatch state machine includes waiting state, adds pump
State and subtract pump state；Pump dispatch state machine judges first state switch condition or the second state transition condition in the wait state
Whether set up, if the establishment of first state switch condition, enter plus pump state, execute plus pump operated, and complete to add pump behaviour
Return to waiting for state after work, if the second state transition condition is set up, enter and subtract pump state, execution subtracts pump operated, and complete
Become subtract pump operated after return to waiting for state；Plus pump operated inclusion: take out a pump numbering pump queue from shutting down；By variable frequency pump team
In pump numbering press-in general pump queue in row；By from the pump numbering press-in variable frequency pump queue shutting down taking-up in pump queue；Time
Go through the numbering shutting down all pumps in pump queue, variable frequency pump queue and general pump queue, obtain controlling the water pump of each pump to control electricity
The control command on road；Described subtract pump operated inclusion: take out a pump numbering from general pump queue, and be pressed into shutdown pump queue
In；Traversal shuts down the numbering of all pumps in pump queue, variable frequency pump queue and general pump queue, obtains the water pump control controlling each pump
The control command of circuit processed.
In the present embodiment, above-mentioned first state switch condition sets up the hydraulic pressure detected value referring to pressure transducer feedback
Less than default plus pump hydraulic pressure threshold value, and the hydraulic pressure detected value of pressure transducer feedback is less than the default pump hydraulic pressure threshold value that adds and is held
The continuous time is more than default plus pump threshold value time delay, and the quantity shutting down the pump numbering in pump queue is more than zero, general pump team
The quantity of the pump numbering in row is less than or equal to n-1；N is the total quantity of pump.Plus pump hydraulic pressure threshold value and plus pump threshold value time delay
Big I is according to a specific works situation Rational choice dragging many water systems.Using pid control mode, water pump is being controlled
When processed, plus the size of pump hydraulic pressure threshold value is usually arranged as less than given hydraulic pressure；Plus the span of pump threshold value time delay is for example
It is chosen as the 0.8-1.5 second.
In the present embodiment, the second above-mentioned state transition condition sets up the hydraulic pressure detected value referring to pressure transducer feedback
Subtract pump hydraulic pressure threshold value more than default, and the hydraulic pressure detected value of pressure transducer feedback is held more than the default pump hydraulic pressure threshold value that subtracts
The continuous time subtracts pump threshold value time delay more than default, and the quantity of the pump numbering in general pump queue is more than zero, shuts down pump team
The quantity of the pump numbering in row is less than or equal to n-1；N is the total quantity of pump.Subtract pump hydraulic pressure threshold value and subtract pump threshold value time delay
Big I is according to a specific works situation Rational choice dragging many water systems.Using pid control mode, water pump is being controlled
When processed, the size subtracting pump hydraulic pressure threshold value is usually arranged as more than given hydraulic pressure；Subtract the span of pump threshold value time delay for example
It is chosen as the 0.8-1.5 second.
Below in conjunction with a specific application example, one explanation is done to the work process of the present invention.
In this application example, one drags many water systems mainly to include plc controller, converter, 5 water pumps, control water
Pump accesses common frequency power network or the water pump control circuit of outfan of converter and the pressure for measuring the water pressure in pipeline
Sensor, above-mentioned water pump control circuit is generally made up of two groups of A.C. contactors, one group of A.C. contactor be connected to electrical network with
Between the input of water pump, another group of A.C. contactor is connected between the outfan of converter and the input of water pump.In work
Make any instant under state, converter can only drive a water pump.
The numbering of this 5 converters is 1 to No. 5, and No. 1 to No. 3 pump is in stopped status, is therefore pressed into shutdown pump team
Row.And because, in No. 1 to No. 3 pump, the time of No. 1 pump shutdown is the longest, the time of No. 3 pump shutdown is the shortest, and therefore No. 3 pumps are located at
Queue tail, and No. 1 pump is in queue head.No. 4 pumps are in converting operation state, are therefore pressed into variable frequency pump queue.No. 5 pumps
It is in power frequency operation state, be therefore pressed into general pump queue.
In waiting state, the hydraulic pressure detected value that pressure transducer feeds back is added pump hydraulic pressure with default by pump dispatch state machine
Threshold value is compared.If a certain moment in waiting state, pump dispatch state machine monitors the water of pressure transducer feedback
Pressure detected value 2mpa is less than default plus pump hydraulic pressure threshold value 2.5mpa, then determine whether the hydraulic pressure detection of pressure transducer feedback
Whether value is less than default plus pump hydraulic pressure threshold value duration more than default plus pump threshold value time delay.If pressure passes
It is more than default plus when pump postpones that the hydraulic pressure detected value of sensor feedback is less than default plus pump hydraulic pressure threshold value duration
Between threshold value 1s, then determine whether that whether the quantity shutting down the pump numbering in pump queue be more than zero, the pump in general pump queue is compiled
Number quantity whether be less than or equal to 4.Quantity due to now shutting down the pump in pump queue is 3, the pump in general pump queue
Quantity is 1, and therefore first state switch condition is set up, and pump dispatch state machine enters plus pump state, execution plus pump operated: from stopping
No. 1 pump is taken out in pump queue；In variable frequency pump queue No. 4 are pumped in general pump queue；Then No. 1 is pumped into frequency conversion
In pump queue；Traversal shuts down the numbering of all pumps in pump queue, variable frequency pump queue and general pump queue, obtains controlling each pump
The control command of water pump control circuit.The control command of the obtained water pump control circuit of each pump of control is fed to catalyst
Control unit, and then control contactor switches between electrical network and converter, thus completing the running status switching of pump, this task
Not in the row of the discussion of the application, therefore it is not set forth in detail.
After completing plus being pump operated, pump dispatch state machine returns to waiting for state.Similarly, during another in waiting state
Carve, if pump dispatch state machine monitors that the second state transition condition is set up, enter and subtract pump state, execution subtracts pump operated: from
Take out No. 5 pumps in general pump queue, No. 5 are pumped in shutdown pump queue, traversal shuts down pump queue, variable frequency pump queue and power frequency
The numbering of all pumps in pump queue, obtains controlling the control command of the water pump control circuit of each pump.Complete to subtract pump operated rear pump
Dispatch state machine returns to waiting for state.
It should be noted that according to an embodiment of the invention one drags the pump dispatching method of many water systems to pass through software
When mode is implemented, when not can be only installed at plc controller, also may be installed on converter.
Above description is with reference to further illustrating that specific embodiment and accompanying drawing are done to the present invention.But, the present invention
Obviously can be implemented different from other methods that this describes with multiple, those skilled in the art can be without prejudice in the present invention
Carry out promoting, deduce according to actually used situation in the case of appearance, therefore, the content of above-mentioned specific embodiment should not limit this
Specify fixed protection domain.
Claims (5)
1. one drag the pump dispatching method of many water systems it is characterised in that comprising the following steps:
Set up numbering for the described one all pumps dragging many water systems；
The numbering of all pumps is respectively pressed into shutdown pump queue, variable frequency pump queue and power frequency by the actual working state according to each pump
Pump queue；Shut down pump queue, variable frequency pump queue and general pump queue in pump be respectively at stopped status, converting operation state and
The quantity of the pump numbering in power frequency operation state, and variable frequency pump queue is one, shuts down pump queue and the pump of general pump queue is compiled
The sequencing of number enqueue enters the sequencing of stopped status respectively with pump and pump enter power frequency operation state priority suitable
Sequence is consistent；
Complete the scheduling of all pumps by pump dispatch state machine；Wherein, described pump dispatch state machine includes waiting state, adds pump shape
State and subtract pump state；Described pump dispatch state machine judges that under described waiting state first state switch condition or the second state turn
Change whether condition is set up, if first state switch condition is set up, enter described plus pump state, execute plus pump operated, and
Return to waiting for state described in completing plus after pump operated, if the second state transition condition is set up, subtract pump state described in entrance, hold
Row subtract pump operated, and subtract described in completing pump operated after return to waiting for state；Described plus pump operated inclusion: from described shutdown pump team
A pump numbering is taken out in row；Pump numbering in variable frequency pump queue is pressed in described general pump queue；Will be from shutdown pump queue
The pump numbering of middle taking-up is pressed in described variable frequency pump queue；Traversal shuts down institute in pump queue, variable frequency pump queue and general pump queue
There is the numbering of pump, obtain controlling the control command of the water pump control circuit of each pump；Described subtract pump operated inclusion: from general pump team
Take out a pump numbering in row, and be pressed in shutdown pump queue；Traversal is shut down in pump queue, variable frequency pump queue and general pump queue
The numbering of all pumps, obtains controlling the control command of the water pump control circuit of each pump.
2. according to claim 1 one drag the pump dispatching method of many water systems it is characterised in that described first state turns
Condition of changing is set up and is referred to that the hydraulic pressure detected value of pressure transducer feedback is less than default plus pump hydraulic pressure threshold value, and pressure transducer is anti-
The hydraulic pressure detected value of feedback is less than default plus pump hydraulic pressure threshold value duration more than default plus pump threshold value time delay, stops
The quantity of the pump numbering in pump queue is more than zero, and the quantity of the pump numbering in general pump queue is less than or equal to n-1；N is pump
Total quantity.
3. according to claim 2 one drag the pump dispatching method of many water systems it is characterised in that when described plus pump postpones
Between threshold value span be the 0.8-1.5 second.
4. according to claim 1 one drag the pump dispatching method of many water systems it is characterised in that described second state turns
Condition of changing is set up and is referred to that the hydraulic pressure detected value of pressure transducer feedback subtracts pump hydraulic pressure threshold value more than default, and pressure transducer is anti-
The hydraulic pressure detected value of feedback is more than and default subtract pump hydraulic pressure threshold value duration and be more than and default subtract pump threshold value time delay, work
The quantity of the pump numbering in frequency pump queue is more than zero, and the quantity shutting down the pump numbering in pump queue is less than or equal to n-1；N is pump
Total quantity.
5. according to claim 4 one drag the pump dispatching method of many water systems it is characterised in that described subtract pump postpone when
Between threshold value span be the 0.8-1.5 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759664.5A CN106351289A (en) | 2016-08-30 | 2016-08-30 | Pump dispatching method for multi-split water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759664.5A CN106351289A (en) | 2016-08-30 | 2016-08-30 | Pump dispatching method for multi-split water supply system |
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| Publication Number | Publication Date |
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| CN106351289A true CN106351289A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610759664.5A Pending CN106351289A (en) | 2016-08-30 | 2016-08-30 | Pump dispatching method for multi-split water supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515320A (en) * | 2018-05-22 | 2019-11-29 | 西门子股份公司 | Drive control method, drive system, processing system and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08232883A (en) * | 1994-12-27 | 1996-09-10 | Mooreekusu:Kk | Water supply quantity control method and control device in multi-layer floor water supply piping system |
| CN102383466A (en) * | 2011-11-10 | 2012-03-21 | 渤海大学 | High-efficiency cluster type water pump system with constant pressure and variable flow and operation control method |
| CN203849623U (en) * | 2013-12-02 | 2014-09-24 | 温州乐控节能科技有限公司 | Constant-voltage water supply control system |
| CN104831782A (en) * | 2015-05-20 | 2015-08-12 | 四川博海供水设备有限公司 | Variable frequency water supply control system based on secondary pressurization water supply and working mode thereof |
| CN105133699A (en) * | 2015-08-31 | 2015-12-09 | 深圳市英威腾电气股份有限公司 | Water supply pump frequency-variable control method and system |
-
2016
- 2016-08-30 CN CN201610759664.5A patent/CN106351289A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08232883A (en) * | 1994-12-27 | 1996-09-10 | Mooreekusu:Kk | Water supply quantity control method and control device in multi-layer floor water supply piping system |
| CN102383466A (en) * | 2011-11-10 | 2012-03-21 | 渤海大学 | High-efficiency cluster type water pump system with constant pressure and variable flow and operation control method |
| CN203849623U (en) * | 2013-12-02 | 2014-09-24 | 温州乐控节能科技有限公司 | Constant-voltage water supply control system |
| CN104831782A (en) * | 2015-05-20 | 2015-08-12 | 四川博海供水设备有限公司 | Variable frequency water supply control system based on secondary pressurization water supply and working mode thereof |
| CN105133699A (en) * | 2015-08-31 | 2015-12-09 | 深圳市英威腾电气股份有限公司 | Water supply pump frequency-variable control method and system |
Non-Patent Citations (1)
| Title |
|---|
| 机械工业信息研究院: "《变频器产品供应目录》", 31 January 2011 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110515320A (en) * | 2018-05-22 | 2019-11-29 | 西门子股份公司 | Drive control method, drive system, processing system and storage medium |
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