CN106873494A - A kind of Air-active dust collection device based on PLC controls - Google Patents
A kind of Air-active dust collection device based on PLC controls Download PDFInfo
- Publication number
- CN106873494A CN106873494A CN201510913127.7A CN201510913127A CN106873494A CN 106873494 A CN106873494 A CN 106873494A CN 201510913127 A CN201510913127 A CN 201510913127A CN 106873494 A CN106873494 A CN 106873494A
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- collection device
- dust collection
- air
- sensor
- active dust
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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
- G05B19/054—Input/output
-
- 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
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15015—Assign functions to group of complete or partial cells, modules
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A kind of Air-active dust collection device based on PLC controls of the present invention, Air-active dust collection device based on PLC controls is from S7-300PLC as control core, from testing equipments such as differential pressure pickup, Temperature Humidity Sensor, spark sensors, auto-control is realized using executing agencies such as PLC controls variable-frequency governor, magnetic valve, cylinders.The pressure sensor is arranged on main ventilation pipeline, and the pressure size in real-time detection main pipeline is automatically adjusted to suitable rotation speed of fan by frequency converter.Transmitting module is mounted with the terminal box of the temperature sensor, it is amplified and linearization process from special chip, improves sensor accuracy class, without compensation, load capacity is big, long transmission distance, strong antijamming capability for cold end.The humidity sensor selects digital hygro sensor, gamut to demarcate, and two-line digital interface greatly shortens research and development time, peripheral circuits and reduces expense.
Description
Technical field
The present invention relates to a kind of Air-active dust collection device based on PLC controls, it is adaptable to mechanical field.
Background technology
At present, large-scale timber processing workshop can use Air-active dust collection device, and it can improve the environmental sanitation condition and fire prevention condition of workshop, prevent the pollution of the environment, raises labour productivity, improving working condition and improve product quality.But, due to the difference of the producing equipment, process technology and managerial skills of each enterprise, Air-active dust collection device power consumption is caused to there is also very big difference, the energy consumption serious waste of some devices, production cost is increased, the competitiveness of product in market is reduced, labor productivity is low, resource utilization is low, so that the restraining factors as the performance of enterprises and existence.If converter technique can be introduced in Air-active dust collection device, according to actual needs blast, the rotating speed of timely automated regulation blower fan will save mass energy, break the state of " low load with strong power ", and considerable economic benefit is brought to enterprise.
The content of the invention
The present invention proposes a kind of Air-active dust collection device based on PLC controls, from PLC as control core, controls Air-active dust collection device; reach energy-saving; the physical and mental health of workman is protected, the potential safety hazards such as fire and dust explosion are reduced, alleviates the purpose of surrounding enviroment pollution situation.
The technical solution adopted in the present invention is：
Air-active dust collection device based on PLC controls, as control core, from testing equipments such as differential pressure pickup, Temperature Humidity Sensor, spark sensors, auto-control is realized using executing agencies such as PLC controls variable-frequency governor, magnetic valve, cylinders from S7-300PLC.
The pressure sensor is arranged on main ventilation pipeline, and the pressure size in real-time detection main pipeline is automatically adjusted to suitable rotation speed of fan by frequency converter.
Transmitting module is mounted with the terminal box of the temperature sensor, it is amplified and linearization process from special chip, improves sensor accuracy class, without compensation, load capacity is big, long transmission distance, strong antijamming capability for cold end.
The humidity sensor selects digital hygro sensor, gamut to demarcate, and two-line digital interface greatly shortens research and development time, peripheral circuits and reduces expense.
The spark sensor is used for monitoring to be not directly visible hiding fierce flame and spark.
The variable-frequency governor receives the control signal from PLC as the execution unit in automatic control system, changes the frequency of out-put supply.Its effect is to adjust motor speed by changing the frequency of motor power.
Using the closed-loop control system for integrating converter technology, sensor technology, PLC technology, automatically controlling for Air-active dust collection device is realized.Actual working pressure is detected by pressure sensor in total ventilation shaft, it is transformed into the feedback signal of analog input, compare with setting pressure in PLC after being changed through A/D, it is transformed into analog quantity output signals through D/A again, control the output frequency of frequency converter, regulation rotation speed of fan, so as to reach the purpose of control total pipeline blast.
Software for Design is realized the collection of signal using modular design method, transmits, compares, controlling.Software is divided into seven modules according to function：Initialization module, VFC blower fan module, energy recovery module, moisture adjustment module, accessory fan adjustment module, deduster cleaning module, fault alarm module.
After system boot, initialized first, then judged it is to control or automatically control manually.When selection is automatically controlled, do not control corresponding indicator lamp on cabinet panel bright into automatic Starting, after startup, then read analog quantity, judge whether to be equal to setting value, the PID control such as not, produce analog output to be sent to frequency converter, be adjusted rotation speed of fan.
The beneficial effects of the invention are as follows：Air-active dust collection device control system based on PLC controls can open situation according to lathe, according to the requirement of actual air volume, draught fan impeller rotating speed be adjusted in real time, neither influence dust removing effects to reach energy-saving effect again.The physical and mental health of workman is protected, the potential safety hazards such as fire and dust explosion are reduced, alleviates surrounding enviroment pollution situation.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the Air-active dust collection device system global structure figure based on PLC controls.
Fig. 2 is the master control flow chart of control system.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, Air-active dust collection device based on PLC controls is from S7-300PLC as control core, from testing equipments such as differential pressure pickup, Temperature Humidity Sensor, spark sensors, auto-control is realized using executing agencies such as PLC controls variable-frequency governor, magnetic valve, cylinders.
The pressure sensor is arranged on main ventilation pipeline, and the pressure size in real-time detection main pipeline is automatically adjusted to suitable rotation speed of fan by frequency converter.Transmitting module is mounted with the terminal box of the temperature sensor, it is amplified and linearization process from special chip, improves sensor accuracy class, without compensation, load capacity is big, long transmission distance, strong antijamming capability for cold end.The humidity sensor selects digital hygro sensor, gamut to demarcate, and two-line digital interface greatly shortens research and development time, peripheral circuits and reduces expense.The spark sensor is used for monitoring to be not directly visible hiding fierce flame and spark.The variable-frequency governor receives the control signal from PLC as the execution unit in automatic control system, changes the frequency of out-put supply.Its effect is to adjust motor speed by changing the frequency of motor power.
Such as Fig. 2, Software for Design is realized the collection of signal using modular design method, transmits, compares, controlling.Software is divided into seven modules according to function:Initialization module, VFC blower fan module, energy recovery module, moisture adjustment module, accessory fan adjustment module, deduster cleaning module, fault alarm module.
After system boot, initialized first, then judged it is to control or automatically control manually.When selection is automatically controlled, do not control corresponding indicator lamp on cabinet panel bright into automatic Starting, after startup, then read analog quantity, judge whether to be equal to setting value, the PID control such as not, produce analog output to be sent to frequency converter, be adjusted rotation speed of fan.
Claims (7)
1. a kind of Air-active dust collection device based on PLC controls selects S7-300PLC as control core, from testing equipments such as differential pressure pickup, Temperature Humidity Sensor, spark sensors, auto-control is realized using executing agencies such as PLC controls variable-frequency governor, magnetic valve, cylinders.
2. it is according to claim 1 it is a kind of based on PLC control Air-active dust collection device, it is characterized in that the pressure sensor be arranged on main ventilation pipeline on, the pressure size in real-time detection main pipeline is automatically adjusted to suitable rotation speed of fan by frequency converter.
3. it is according to claim 1 it is a kind of based on PLC control Air-active dust collection device, it is characterized in that being mounted with transmitting module in the terminal box of the temperature sensor, it is amplified and linearization process from special chip.
4. it is according to claim 1 it is a kind of based on PLC control Air-active dust collection device, it is characterized in that the humidity sensor selection digital hygro sensor, gamut demarcate, two-line digital interface.
5. a kind of Air-active dust collection device based on PLC controls according to claim 1, it is characterized in that the spark sensor is used for monitoring to be not directly visible and hiding fierce flame and spark.
6. a kind of Air-active dust collection device based on PLC controls according to claim 1, it is characterized in that the variable-frequency governor is used as the execution unit in automatic control system, receives the control signal from PLC, changes the frequency of out-put supply.
7. it is according to claim 1 it is a kind of based on PLC control Air-active dust collection device, it is characterized in that：Software for Design is realized the collection of signal using modular design method, transmits, compares, controlling, and software is divided into seven modules according to function：Initialization module, VFC blower fan module, energy recovery module, moisture adjustment module, accessory fan adjustment module, deduster cleaning module, fault alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913127.7A CN106873494A (en) | 2015-12-11 | 2015-12-11 | A kind of Air-active dust collection device based on PLC controls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913127.7A CN106873494A (en) | 2015-12-11 | 2015-12-11 | A kind of Air-active dust collection device based on PLC controls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106873494A true CN106873494A (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510913127.7A Pending CN106873494A (en) | 2015-12-11 | 2015-12-11 | A kind of Air-active dust collection device based on PLC controls |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201963A (en) * | 2019-06-10 | 2019-09-06 | 开封市大庆电器有限公司 | Exhaust gas and dust collection device for workshop |
| CN111254509A (en) * | 2018-11-30 | 2020-06-09 | 常州市新创智能科技有限公司 | Waste silk box control method |
| CN112718222A (en) * | 2020-12-03 | 2021-04-30 | 南昌矿山机械有限公司 | Intelligent wind pressure control method for positive pressure dustproof system of hydraulic cone crusher |
-
2015
- 2015-12-11 CN CN201510913127.7A patent/CN106873494A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254509A (en) * | 2018-11-30 | 2020-06-09 | 常州市新创智能科技有限公司 | Waste silk box control method |
| CN110201963A (en) * | 2019-06-10 | 2019-09-06 | 开封市大庆电器有限公司 | Exhaust gas and dust collection device for workshop |
| CN110201963B (en) * | 2019-06-10 | 2020-09-18 | 开封市大庆电器有限公司 | A waste gas dust collection device for workshop |
| CN112718222A (en) * | 2020-12-03 | 2021-04-30 | 南昌矿山机械有限公司 | Intelligent wind pressure control method for positive pressure dustproof system of hydraulic cone crusher |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
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| WD01 | Invention patent application deemed withdrawn after publication |