CN106292510A - Automatic matching device for emulsion PLC control system and method - Google Patents
Automatic matching device for emulsion PLC control system and method Download PDFInfo
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- CN106292510A CN106292510A CN201610735248.1A CN201610735248A CN106292510A CN 106292510 A CN106292510 A CN 106292510A CN 201610735248 A CN201610735248 A CN 201610735248A CN 106292510 A CN106292510 A CN 106292510A
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- emulsion
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- plc control
- dosing pump
- control module
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25268—PLD programmable logic device
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Colloid Chemistry (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The automatic matching device for emulsion PLC control system of present invention offer and method, container is closed including emulsion, emulsion closes container and water container and oil emulsion reservoir, and on pipeline, it being respectively arranged with electromagnetic dosing pump I and electromagnetic dosing pump II, emulsion is provided with the agitator of translator in closing container.Inputted concentration data and the usage data of emulsion to PLC control module by host computer, PLC control module calculates the water yield and the emulsifying oil mass of needs, it is transferred to data respectively connect the electromagnetic dosing pump I on pipeline between emulsion closing container and water container, connect the electromagnetic dosing pump II that emulsion is closed between container and oil emulsion container on pipeline, interpolation water and oil emulsion in container is closed to emulsion by two electromagnetic dosing pumps, after having added, control motor by PLC control module and be stirred.The present invention uses " PLC+ dosing pump " control system to have the advantage that efficiency is high, automaticity is high, precision is high and is capable of start & shutdown through one key.
Description
Technical field
The present invention relates to a kind of automatic matching device for emulsion PLC control system and control method.
Background technology
According to the survey, the mine work surface of current China more than 95% uses hydraulic prop equipment, to ensure coal face to root
Do not subside.Emulsion is the driving medium of coal mine hydraulic supporting and hydraulic prop, plays blood effect in hydraulic system, and
In the processing industry of aluminum metal and alloy thereof, the application of emulsion is also the most widely, it is possible to play anti-corrosion protection, lubrication
Effect.Emulsion plays vital effect for protection, the accuracy of its concentration of lubrication of metal, underproof
Emulsion even has detrimental effect to metal, so controlling emulsion ratio precision well is non-the normally off in emulsion ratio system
Key.Emulsion is formed by water and oil emulsion proportioning, concentration requirement 3% ~ 5%, and emulsion ratio concentration is by the shadow of several factors
Ring, including hydraulic pressure, water quality, flow, matching device accuracy.Existing emulsion ratio is mainly completed by two ways,
The first is manually performed, and artificial quantitatively interpolation water and oil emulsion complete proportioning, and matched proportion density is artificial by sampling light refractometer
Observing, its precision is the highest, and efficiency is low, is affected by human factors bigger；The second is completed by " PLC+ converter+dosing pump ",
Which is by PLC as control centre, and frequency converter timing completes emulsion ratio, and which precision is higher, and efficiency is high, but becomes
This is the highest.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of automatic emulsion proportioning control system and control method, with
Solve the problem that prior art exists.
The present invention is by the following technical solutions:
Automatic matching device for emulsion PLC control system, controls including automatic matching device and the PLC being connected with automatic matching device
System processed；
Described automatic matching device includes that container 8 closed by emulsion, and emulsion closes container 8 respectively by different pipelines and the water capacity
Device 10 connects with oil emulsion container 9, and is respectively arranged with electromagnetic dosing pump I 5 and electromagnetic dosing pump II 6 on two different pipelines),
Described emulsion is provided with the agitator of translator 7 in closing container 8；
Described PLC control system includes that PLC control module, described PLC control module are connected with host computer, and PLC controls mould simultaneously
Electromagnetic dosing pump I 5, electromagnetic dosing pump II 6, motor 7 it is also connected with on block.
The water level liquidometer 1 that is also connected with in described PLC control module being arranged in water container 10, it is arranged on emulsion and closes
Emulsion liquidometer 2 in container 8, the oil emulsion liquid level meter 3 being arranged in oil emulsion container 9, by water level liquidometer 1, breast
Change liquid liquidometer 2, oil emulsion liquid level meter 3 tests water level, emulsifying liquid level, emulsifying oil level respectively.
Described PLC control system also includes that being arranged on emulsion closes in container 8, measures the densitometer 4 of concentration of emulsion used,
Described densitometer 4 is connected with PLC control module.
Described water level liquidometer 1, emulsion liquidometer 2, oil emulsion liquidometer 3, densitometer 4 all by RVVP cable with
PLC control module is connected.
Described electromagnetic dosing pump I 5, electromagnetic dosing pump II 6, motor control mould by different control loops with PLC respectively
Block is connected, and described control loop includes the relay coil of series connection, relay normally open contact, catalyst.
Automatic matching device for emulsion PLC control method includes:
Inputted concentration data and the usage data of emulsion to PLC control module by host computer, PLC control module calculates to be needed
Data are transferred to connect emulsion and close between container 8 and water container 10 on pipeline by the water yield wanted and emulsifying oil mass respectively
The electromagnetic dosing pump II 6 that electromagnetic dosing pump I 5, connection emulsion are closed between container 8 and oil emulsion container 9 on pipeline, by two
Individual electromagnetic dosing pump is closed to emulsion and is added water and oil emulsion in container 4, after having added, by PLC control module control
Motor 7 processed is stirred.
During adding water and oil emulsion in emulsion closing container 8, PLC control module obtains water container 10 He
The real-time level information of oil emulsion container, compares with default minimum liquid level value, if reaching default minimum liquid level value,
Then two electromagnetic dosing pumps quit work, and stop adding solution, and PLC control module sends signal to host computer simultaneously, upper
On machine, solution is added in prompting.
After adding solution, control motor 7 by PLC control module and be stirred, obtain emulsion simultaneously and close container
The concentration of the liquid in 8 also sends PLC control module to, and the actual concentrations of acquisition is entered by PLC control module with the concentration preset
Row compares, if actual concentrations is more than preset concentration, then opens electromagnetic dosing pump I 5 and closes interpolation water in container 8 to emulsion,
If actual concentrations is less than preset concentration, then opens electromagnetic dosing pump II 6 and close interpolation emulsion in container 8 to emulsion.
Beneficial effects of the present invention: the present invention uses " PLC+ dosing pump " control system to have efficiency height, automaticity
Height, precision height, low cost and the advantage being capable of start & shutdown through one key.
Accompanying drawing explanation
Fig. 1 is the automatic emulsion proportioning layout of equipment of the present invention.
Fig. 2 is the connection diagram of PLC control system.
Fig. 3 is PC control schematic diagram.
Fig. 4 is the control flow chart of the present invention.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the present invention provides a kind of automatic emulsion proportioning control system, including automatic matching device
And the PLC control system being connected with automatic matching device.By PLC control system, proportioning process is controlled, it is achieved a key
On off control.
Automatic matching device includes that container 8 closed by emulsion, and emulsion closes container 8 respectively by different pipelines and the water capacity
Device 10 connects with oil emulsion container 9, and pipeline selects stainless steel tube.
Emulsion is closed and is provided with electromagnetic dosing pump I 5 on the pipeline between container 8 and water container 10, and emulsion is closed and held
Arranging electromagnetic dosing pump II 6 on pipeline between device 8 and oil emulsion container 9, emulsion is provided with translator 7 in closing container 8
Agitator, the agitator water to being flowed in emulsion sealer 8 and emulsion are stirred.
And PLC control system includes PLC control module, being provided with logic computing unit in this control module, PLC controls mould
Block is connected with host computer, is also connected with electromagnetic dosing pump I 5, electromagnetic dosing pump II 6, motor 7 in PLC control module simultaneously.So that and
Time quantitatively add oil emulsion to emulsion container automatically according to control command from oil emulsion container, thus complete proportioning emulsion institute
Need quantitatively adding of water and oil emulsion.
The water level liquidometer 1 that is also connected with in PLC control module being arranged in water container 10, it is arranged on emulsion and closes container
Emulsion liquidometer 2 in 8, the oil emulsion liquid level meter 3 being arranged in oil emulsion container 9.Water level liquidometer 1 is installed on water container
For monitoring the fluid level condition of water directly over 10；Emulsion liquidometer 2 be installed on emulsion close container 8 cover bottom for
Monitoring emulsion fluid level condition；Oil emulsion liquid level 3 meter is installed on the surface of oil emulsion container 9 for monitoring the liquid level of oil emulsion
State.
PLC control system also includes that being arranged on emulsion closes the densitometer 4 in container 8, and densitometer 4 controls mould with PLC
Block is connected.Densitometer 4 is fixedly installed on emulsion container wall, and densitometer 4 is near bottom, such as distance emulsion container
Bottom about 2cm, in order to remain to normally show concentration of emulsion used information when emulsion arrives lower position.
Such as Fig. 2, water level liquidometer 1, emulsion liquidometer 2, oil emulsion liquidometer 3, densitometer 4 are all by RVVP cable even
Receiving the Analog input mModule in PLC control module, meanwhile, PLC control module is by digital quantity input module and electromagnetism meter
Amount pump I 5, electromagnetic dosing pump II 6, motor are connected with PLC control module by different control loops respectively, control loop and include
The relay coil of series connection, relay normally open contact, catalyst.
Operator inputs the concentration and emulsion demand set by host computer, and can check liquid by host computer
The states such as position, concentration, the liquid level concentration signal that sensor obtains inputs to PLC control module, and PLC control module is patrolled through inside
Collecting after processing, if needing the action of electromagnetic dosing pump or blender, output signal makes the corresponding actuating of relay, relay
Open contacts Guan Bi so that catalyst action, the closing of contact of catalyst, i.e. make corresponding electromagnetic relay move
Make.
The present invention also provides for a kind of automatic emulsion proportioning control method, and operator passes through host computer to PLC control module
The concentration data of input emulsion and usage data, after the beginning proportioning button in motor host computer interface, to PLC control module
Send signal, after PLC control module calculates the water yield and the emulsifying oil mass of needs, send signal, by the data company of being transferred to respectively
Connect electromagnetic dosing pump I 5, connection emulsion closing container 8 and emulsifying that emulsion is closed between container 8 and water container 10 on pipeline
Electromagnetic dosing pump II 6 on pipeline between oil vessel 9, specifically, the relay between PLC control module and electromagnetic dosing pump
After receiving the signal that PLC control module sends, normally opened contact closes, and catalyst is connected, and electromagnetic dosing pump is started working, and passes through
Two electromagnetic dosing pumps are closed to emulsion and are added water and oil emulsion in container 4, after having added, by PLC control module
Controlling motor 7 to be stirred, motor controls process as the control process of electromagnetic dosing pump.
As shown in Figure 4, during adding water and oil emulsion in emulsion closing container 8, PLC control module obtains
The real-time level information of water container 10 and oil emulsion container 9, compares with default minimum liquid level value, if reaching default
Minimum liquid level value, then two electromagnetic dosing pumps quit work, and stop adding solution, and PLC control module sends to host computer simultaneously
Signal, on host computer, solution is added in prompting.
After adding solution, control motor 7 by PLC control module and be stirred, obtain emulsion simultaneously and close container
The concentration of the liquid in 8 also sends PLC control module to, and the actual concentrations of acquisition is entered by PLC control module with the concentration preset
Row compares, if actual concentrations is more than preset concentration, then opens electromagnetic dosing pump I 5 and closes interpolation water in container 8 to emulsion,
If actual concentrations is less than preset concentration, then opens electromagnetic dosing pump II 6 and close interpolation emulsion in container 8 to emulsion.Real
Border concentration with set concentration can specification error and concentration difference allowed band, such as less than 0.3%, and concentration of emulsion used difference with
Setting difference is in the range of 3% ~ 5%, and proportioning flow process stops.
When use host computer interface as shown in Figure 3 is controlled, water level liquidometer, emulsion liquidometer, emulsifying fluid
Position meter, densitometer picture side show current level and concentration, in real time when water and oil emulsion dosing pump add time or liquid level
When arriving lower limit, PLC control module controls to disconnect switch, and electromagnetic dosing pump I, electromagnetic dosing pump II shut down, and stir simultaneously
Machine puts into operation, starts water and oil emulsion formation emulsion that mixing adds.Host computer picture show in real time electromagnetic dosing pump I,
Electromagnetic dosing pump II, the running status of agitator.If need to finely tune matched proportion density after proportioning completes, it is possible to click on " fine setting
Add water ", " fine setting is refueled " manually adds water or oil emulsion.
The work of electromagnetic dosing pump is quantitatively to deliver.System controls the quantitative addition method of dosing pump: electromagnetic dosing pump can
To set stroke and frequency by the panel of itself, stroke represents the amount that single adds, the speed degree that frequency representation adds, should
Method sets stroke and frequency by electromagnetic dosing pump panel, i.e. can determine that the amount that dosing pump per second adds, so that " water adds speed
Degree V1 " and " emulsion adds speed V2 " expression；Operator sets required concentration of emulsion used and capacity, PLC by host computer
Control module, by calculating water and the amount of oil emulsion needed for proportioning, represents with " water yield L1 " and " emulsifying oil mass L2 " respectively.
Can be calculated by data above and add water time T1 and add oil emulsion time T2, have T1=L1/V1 and T2=L2/V1.Example is said
Bright: assuming that operator sets proportioning concentration of emulsion used as 4%, requirement is 10 liters, then need to add 0.4 liter of oil emulsion by calculating
With 9.6 liters of water, electromagnetic dosing pump V, the stroke of electromagnetic dosing pump VI be respectively set as 0.2 milliliter and 4.6 milliliters, and frequency is
2Hz(i.e. 1s adds 2 times), V1=0.4 milliliters/second, V2=9.6 milliliters/second can be drawn by calculating, PLC controls electromagnetic measurement
It is the T1=400/0.4=1000 second that pump I, the energising of electromagnetic dosing pump II add the time, the T2=9600/9.6=1000 second.In the method
T1 can be not equal to T2.
The present invention can realize following functions:
(1) the full-automatic proportioning of emulsion
This system only needs concentration and the volume of operator's emulsion needed for host computer input, and PLC can be automatically performed accordingly
Required water and the calculating of emulsifying oil mass, and automatically control dosing pump quantitative timing and add water and oil emulsion, and control stirring
Device completes the proportioning of emulsion, and whole process realizes full-automatic proportioning, without manual intervention.If operator needs proportioning dense
Degree is finely adjusted, and host computer can provide operation interface to operate accordingly.
(2) low liquid level protection
In order to better ensure that emulsion ratio concentration, it is to avoid dosing pump dallies, system sets water and oil emulsion by PLC program
Bottom limit level, when the level value that liquidometer obtains is less than or equal to lower limit, system stops proportioning, and closes dosing pump and stirring
Mix device.
(3) real time inspection proportioning process and result
This system upper computer software intuitively reflects the composition of emulsion ratio system, and obtains liquid by liquidometer and densitometer
Position and concentration information show at upper computer software interface, it is achieved the real-time update of proportioning process, operator can join by real time inspection
Than process and result.
The invention have the advantages that
(1) system cost is saved
System uses the control mode of " PLC+ dosing pump ", owing to the single dosage of dosing pump is fixed, controls meter by PLC
The switch time of amount pump, quantitatively the adding of water and oil needed for emulsion ratio can be realized, compare traditional " PLC+ converter+
Dosing pump " control mode, it is not necessary to converter can complete similar functions, has saved the cost of converter.
(2) distributing precision is high
System realizes the closed loop control of proportioning process by liquid level and concentration sensor, by setting concentration and the ratio of actual concentrations
Relatively, constantly proportioning process is finely adjusted so that actual matched proportion density is less than 0.3% with setting concentration deviation, and system is adopted
Being controlled by high accuracy PLC, the CPU operation efficiency of PLC can reach us rank, and control accuracy is for the proportioning foot of emulsion
Enough.
(3) automaticity is high
Comparing artificial proportioning mode, this system provides great convenience, operator is without going to solution institute at the scene, it is only necessary to
By concentration and the volume of the host computer required emulsion of input, PLC can be automatically performed corresponding required water and emulsifying oil mass
Calculate, and automatically control dosing pump quantitative timing and add water and oil emulsion, and control agitator and complete the proportioning of emulsion,
Whole process realizes full-automatic proportioning, and without manual intervention, automaticity is high.
(4) system highly versatile
Owing to emulsion is for the processing of most metal especially aluminium section bars, play the effect of anticorrosion, lubrication, and concentration
Require and proportioning solution (water and oil emulsion) is substantially similar, so this system is applicable to most of emulsion ratio mistake
Cheng Zhong, highly versatile.
Above-described is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art,
Without departing under general idea premise of the present invention, it is also possible to making some changes and improvements, these also should be considered as the present invention's
Protection domain.
Claims (8)
1. automatic matching device for emulsion PLC control system, it is characterised in that: include automatic matching device and fill with automatic mixing
Put connected PLC control system；
Described automatic matching device includes that container (8) closed by emulsion, emulsion close container (8) respectively by different pipelines with
Water container (10) connects with oil emulsion container (9), and is respectively arranged with electromagnetic dosing pump I (5) and electromagnetism on two different pipelines
Dosing pump II (6), described emulsion is provided with the agitator of translator (7) in closing container (8)；
Described PLC control system includes that PLC control module, described PLC control module are connected with host computer, and PLC controls mould simultaneously
Electromagnetic dosing pump I (5), electromagnetic dosing pump II (6), motor (7) it is also connected with on block.
Automatic matching device for emulsion PLC control system the most according to claim 1, it is characterised in that: described PLC controls
The water level liquidometer (1) being arranged in water container (10), the emulsifying being arranged in emulsion closing container (8) it is also connected with in module
Liquid liquidometer (2), the oil emulsion liquid level meter (3) being arranged in oil emulsion container (9), by water level liquidometer (1), emulsion liquid
Position meter (2), oil emulsion liquid level meter (3) test water level, emulsifying liquid level, emulsifying oil level respectively.
Automatic matching device for emulsion PLC control system the most according to claim 1, it is characterised in that: described PLC controls
System also includes being arranged on emulsion and closes in container (8), measures the densitometer (4) of concentration of emulsion used, described densitometer (4) with
PLC control module is connected.
4. according to the automatic matching device for emulsion PLC control system described in Claims 2 or 3, it is characterised in that: described water level
Liquidometer (1), emulsion liquidometer (2), oil emulsion liquidometer (3), densitometer (4) all control mould by RVVP cable with PLC
Block is connected.
Automatic matching device for emulsion PLC control system the most according to claim 1, it is characterised in that: described electromagnetism meter
Amount pump I (5), electromagnetic dosing pump II (6), motor are connected with PLC control module by different control loops respectively, described control
Loop includes the relay coil of series connection, relay normally open contact, catalyst.
6. automatic matching device for emulsion PLC control method, it is characterised in that including:
Inputted concentration data and the usage data of emulsion to PLC control module by host computer, PLC control module calculates to be needed
Data are transferred to connect emulsion and close pipeline between container (8) and water container (10) by the water yield wanted and emulsifying oil mass respectively
On electromagnetic dosing pump I (5), connect the electromagnetic dosing pump that emulsion is closed between container (8) and oil emulsion container (9) on pipeline
II (6), close interpolation water and oil emulsion in container (4) by two electromagnetic dosing pumps to emulsion, after having added, pass through
PLC control module controls motor (7) and is stirred.
Automatic matching device for emulsion PLC control method the most according to claim 6, it is characterised in that: to emulsion
During adding water and oil emulsion in closing container (8), PLC control module obtains water container (10) and oil emulsion container (9)
Real-time level information, compare with default minimum liquid level value, if reaching default minimum liquid level value, then two electromagnetism
Dosing pump quits work, and stops adding solution, and PLC control module sends signal to host computer simultaneously, points out and add on host computer
Add solution.
Automatic matching device for emulsion PLC control method the most according to claim 6, it is characterised in that: adding solution
After, controlling motor (7) by PLC control module and be stirred, the dense of the liquid in container (8) closed by acquisition emulsion simultaneously
Spending and send to PLC control module, the actual concentrations of acquisition is compared, such as fruit by PLC control module with the concentration preset
Border concentration is more than preset concentration, then open electromagnetic dosing pump I (5) and close interpolation water in container (8) to emulsion, if actual dense
Degree less than preset concentration, is then opened electromagnetic dosing pump II (6) and is closed interpolation emulsion in container (8) to emulsion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610735248.1A CN106292510A (en) | 2016-08-27 | 2016-08-27 | Automatic matching device for emulsion PLC control system and method |
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| CN201610735248.1A CN106292510A (en) | 2016-08-27 | 2016-08-27 | Automatic matching device for emulsion PLC control system and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996091A (en) * | 2017-05-17 | 2017-08-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Removable sand supply automatically device and method |
| CN108268061A (en) * | 2017-12-29 | 2018-07-10 | 三汽车制造有限公司 | Control method, system and the bituminous mixing plant of pitch injection holding vessel |
| CN108993310A (en) * | 2018-07-20 | 2018-12-14 | 广州市康超信息科技有限公司 | A kind of apparatus for combining liquids and control method |
| CN115592181A (en) * | 2022-10-28 | 2023-01-13 | 安徽鑫科铜业有限公司（Cn） | Automatic emulsion adding device of face milling machine and using method thereof |
| CN117707065A (en) * | 2023-12-11 | 2024-03-15 | 上海曼孚机电控制工程有限公司 | Concentration-based intelligent liquid additive blending method, system and medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106996091A (en) * | 2017-05-17 | 2017-08-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Removable sand supply automatically device and method |
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| CN117707065A (en) * | 2023-12-11 | 2024-03-15 | 上海曼孚机电控制工程有限公司 | Concentration-based intelligent liquid additive blending method, system and medium |
| CN117707065B (en) * | 2023-12-11 | 2024-06-18 | 上海曼孚机电控制工程有限公司 | Concentration-based intelligent liquid additive blending method, system and medium |
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Application publication date: 20170104 |