CN105629867B - The automatic control system of low-temperature plasma exhaust-gas treatment - Google Patents
The automatic control system of low-temperature plasma exhaust-gas treatment Download PDFInfo
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- CN105629867B CN105629867B CN201610198515.6A CN201610198515A CN105629867B CN 105629867 B CN105629867 B CN 105629867B CN 201610198515 A CN201610198515 A CN 201610198515A CN 105629867 B CN105629867 B CN 105629867B
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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
- G05B19/058—Safety, monitoring
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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
- G05B2219/10—Plc systems
- G05B2219/16—Plc to applications
- G05B2219/163—Domotique, domestic, home control, automation, smart, intelligent house
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Plasma Technology (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of automatic control systems of low-temperature plasma exhaust-gas treatment, it is also connect with man machine operation interface including PLC controller and the air velocity transducer being connected in PLC controller, blower motor frequency converter, exhaust gas index on-line detector, exhaust gas particle detector, hypergravity bed frequency converter, frequency modulation and voltage modulation power supply and exhaust gas discharge index on-line detector, PLC controller；Air velocity transducer is installed in the air supply duct of waste gas collection device, and the major loop output terminal of fan frequency converter is connected on the motor of waste gas collection device；Exhaust gas index on-line detector interface is connected on the air supply duct of smoke stack emission device；Granule content detector sensing probe is connected on the gas outlet of hypergravity bed filter；The major loop output terminal of hypergravity bed frequency converter is connected on the motor of hypergravity bed filter；The power outputting section of frequency modulation and voltage modulation power supply and the transformer of ion generator connect；The interface of exhaust gas discharge index on-line detector is connected on the chimney breast of smoke stack emission device.
Description
Technical field
The present invention relates to a kind of automatic control systems of low-temperature plasma exhaust-gas treatment.
Background technique
In existing ozone engineering of water treatment, each equipment works independently according to preset parameter and runs, even if adopting
It is carried out automatically controlling with PLC, also only to the implementing monitorings such as shut-in time, separate unit operation conditions are opened, package deal is practical to be made
(tolerance is such as handled) with when requiring to change in short-term with operating condition, by hand adjusting parameter, it cannot timely tracking adjustment the whole series work
The operating parameter of journey, first is that causing that treated, gas discharge index be cannot be guaranteed, second is that causing energy waste.Many exhaust gas
Engineering is handled in 24 hours uninterrupted discharge indexs monitor, discontinuity it is not up to standard.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of low-temperature plasma exhaust-gas treatment from
Autocontrol system, the system use information technology, automatic control technology, pass through programmable logic controller (PLC) PLC, sensor, change
The automation equipments such as frequency device, exhaust gas treatment technology index (ammonia, hydrogen sulfide content index in such as foul smell) on-line detector are right
Operation conditions carries out the operating parameter of automatic detection and each equipment of adjust automatically whole system, realizes to the optimal of various operating conditions
It adjusts, ensure that index is controllable, saved the energy, reduce manual operation.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of automatic control system of low-temperature plasma exhaust-gas treatment, including PLC controller and it is connected to PLC controller
On air velocity transducer, blower motor frequency converter, exhaust gas index on-line detector, exhaust gas particle detector, hypergravity bed frequency conversion
Device, frequency modulation and voltage modulation power supply and exhaust gas discharge index on-line detector, PLC controller are also connect with man machine operation interface.
The air velocity transducer is installed in the air supply duct of waste gas collection device, control signal end of air velocity transducer
It is connected in PLC controller.
Control signal end of the fan frequency converter is connected in PLC controller, the major loop output end of fan frequency converter
Son is connected on the motor of the blower of waste gas collection device.
The exhaust gas index on-line detector electrical signal line is connected in PLC controller, and exhaust gas index on-line detector connects
Mouth is connected on the air supply duct of smoke stack emission device.
The transducing signal terminal of the granule content detector is connected in PLC controller, the sensing of granule content detector
Probe is connected on the gas outlet of hypergravity bed filter.
Control signal end of the hypergravity bed frequency converter is connected in PLC controller, and the master of hypergravity bed frequency converter returns
Road output terminal is connected on the motor of hypergravity bed filter.
The frequency modulation and voltage modulation power supply can use AC-DC-AC circuit, the electricity as driving ion generator capacitive load
Source, frequency modulation and voltage modulation signal are connected with PLC controller, the transformer connection of power outputting section and ion generator.
The electrical signal line of the exhaust gas discharge index on-line detector is connected in PLC controller, and exhaust gas discharge index is online
The interface of detector is connected on the chimney breast of smoke stack emission device.
In the present invention, air velocity transducer threshold wind velocity 0.4-0.8m/s, measurement range 0-60m, electric signal 4-20mADC；
3 phase 380V of fan frequency converter input voltage AC inputs 50 Hz of frequency, output frequency 0-400 Hz, electric signal 4-
20mADC。
Exhaust gas index on-line detector electric signal is 4-20mADC, measurement range 0-1000ppm；Granule content detector electricity
Signal is 4-20mADC, measurement range 0-2000ppm.
3 phase 380V of hypergravity bed filter frequency converter input voltage AC inputs 50 Hz of frequency, output frequency 0-400
Hz, electric signal 4-20mADC.
Frequency modulation and voltage modulation power supply is power 5-100kVA, voltage 3kV-9kV is adjustable, frequency 1kHZ-6kHZ is adjustable, frequency modulation and tune
Piezoelectric signal is 4-20mADC.
Compared with the control of existing exhaust-gas treatment, the present invention has following clear superiority:
1) ensure that waste gas emission standard is up to standard.In practical application, the exhaust gas of collection, content and be hair in flow 24 hours
Changing, vapour dedusting and plasma occurrence quantity need adjustment in time, so that it is guaranteed that the exhaust gas moment reaches discharge standard.This system
Dynamically track is realized, index automatically tracks adjustment.
2) energy conservation is realized.Gas sampling, dedusting of drying, exhaust gas decompose whole system and correct running parameter automatically, realize certainly
Motion tracking control, reaches optimum Working.For the present invention compared with existing system, energy conservation reduces by 35%.
3) reliable and stable, extension service life of equipment.Using conventional instrument and PC application, system equipment
In optimal economic power save mode, service life of equipment is substantially prolonged.
5) easy to operate, save human cost.Man-machine interface setup parameter, system will automatically track control operation, be not necessarily to
It is artificial on duty, save human cost.
The present invention uses information technology, automatic control technology, passes through programmable logic controller (PLC) PLC, sensor, frequency conversion
The automation equipments such as device, exhaust gas technical indicator on-line detector carry out automatic detection and adjust automatically the whole series system to operation conditions
The operating parameter for each equipment of uniting is realized to the optimal adjustment of various operating conditions, ensure that product quality, saved the energy, reduces
Manual operation.
The present invention requires index according to waste gas emission standard, by PLC control system, carries out system progress to exhaust-gas treatment
Optimal Control, when exhaust gas flow and pollutant load variation, PLC system will be timely automated according to the standard technique index of setting
The operating parameter of whole system is adjusted, whole system is in optimum Working, ensure that 24 hours exhaust gas reaches discharge standard,
Whole system is also at maximum energy-saving state simultaneously.
Detailed description of the invention
Fig. 1 is the automatic control system block diagram of low-temperature plasma exhaust-gas treatment.
Wherein, 1, waste gas collection device；2, hypergravity bed filter；3, plasma generator；4, smoke stack emission device；
5, air velocity transducer；6, fan frequency converter；7, exhaust gas index on-line detector；8, granule content detector；9, hypergravity bed becomes
Frequency device；10, frequency modulation and voltage modulation power supply；11, exhaust gas discharge index on-line detector；12, PLC controller；13, man machine operation interface.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, a kind of automatic control system of low-temperature plasma exhaust-gas treatment, including PLC controller 12 and company
Air velocity transducer 5, fan frequency converter 6, the exhaust gas index on-line detector 7, granule content detector being connected in PLC controller 12
8, hypergravity bed frequency converter 9, frequency modulation and voltage modulation power supply 10, exhaust gas discharge index on-line detector 11, PLC controller 12 also with it is man-machine
Operation interface 13 connects.Man machine operation interface 13, which is realized, to be controlled whole system and detects.
Air velocity transducer 5 threshold wind velocity 0.4-0.8m/s, measurement range 0-60m, electric signal 4-20mADC；Wind speed sensing
Device 5 is installed in the air supply duct of waste gas collection device 1, and control signal end of air velocity transducer 5 is connected to PLC controller 12
On.
6 input voltage AC of fan frequency converter, 3 phase 380V inputs 50 Hz of frequency, output frequency 0-400 Hz, electric signal
For 4-20mADC；Control signal end of fan frequency converter 6 is connected in PLC controller, the major loop output end of fan frequency converter 6
Son is connected on the motor of the blower of waste gas collection device 1.
7 electric signal of exhaust gas index on-line detector is 4-20mADC, measurement range 0-1000ppm；Electrical signal line is connected to PLC
On controller 12, interface is connected on the air supply duct of waste gas collection device 1.
8 electric signal of granule content detector is 4-20mADC, measurement range 0-2000ppm；The biography of granule content detector 8
Sense signal terminal is connected in PLC controller 12, and the sensing probe of granule content detector 8 is connected to going out for hypergravity bed filter 2
On port.
The 3 phase 380V of input voltage AC of hypergravity bed frequency converter 9 inputs 50 Hz of frequency, output frequency 0-400 Hz,
Electric signal is 4-20mADC；Control signal end of hypergravity bed frequency converter 9 is connected in PLC controller 12, hypergravity bed frequency conversion
The major loop output terminal of device 9 is connected on the motor of hypergravity bed filter 2.
Frequency modulation and voltage modulation power supply 10 can use AC-DC-AC circuit, the electricity as driving ion generator capacitive load
Source, frequency modulation and voltage modulation power supply 10 is power 5-100kVA, voltage 3kV-9kV is adjustable, frequency 1kHZ-6kHZ is adjustable, frequency modulation and pressure regulation
Electric signal is 4-20mADC；Frequency modulation and voltage modulation signal is connected with PLC controller 12, power outputting section and ion generator 3
Transformer connection.
The electrical signal line of exhaust gas discharge index on-line detector 11 is connected in PLC controller 12, and exhaust gas discharge index is online
The interface of detector 11 is connected on the chimney breast of smoke stack emission device 4.
When exhaust gas discharge index changes, exhaust gas discharge index on-line checking 11 is detected immediately upon the variation of index,
Feedback arrives PLC controller 12 immediately, and PLC controller 12 instructs frequency modulation and voltage modulation power supply 10 to adjust frequency and voltage, so as to adjust
The power of plasma generator 3, and plasma generator is made to reach resonance power save mode.If particle content index occurs
Variation, PLC controller 12 instructs the electric machine frequency of the adjustment hypergravity bed filter 2 of hypergravity bed frequency converter 9, so as to adjust motor
Revolving speed makes particle index consistently achieve standard state.
If hypergravity bed filter 2, plasma generator 3 are more than rated power, the meeting auto-control of PLC controller 12 is useless
The fan frequency converter 6 of gas collection device 1 adjusts the frequency of blower motor, intake is reduced, to make exhaust gas discharge index always
Reach discharge standard.
The present invention requires index most preferably to be controlled by PLC control system to exhaust-gas treatment according to waste gas emission standard
System, when exhaust gas flow and pollutant load variation, PLC system will be whole according to the timely automated adjustment of the standard technique index of setting
The operating parameter of a system, whole system are in optimum Working, ensure that 24 hours exhaust gas reaches discharge standard, while whole
A system is also at maximum energy-saving state.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (7)
1. a kind of automatic control system of low-temperature plasma exhaust-gas treatment, characterized in that including PLC controller and be connected to
It is air velocity transducer, blower motor frequency converter, exhaust gas index on-line detector, exhaust gas particle detector in PLC controller, overweight
Power bed frequency converter, frequency modulation and voltage modulation power supply and exhaust gas discharge index on-line detector, PLC controller also connect with man machine operation interface
It connects；The air velocity transducer is installed in the air supply duct of waste gas collection device, and the major loop output terminal of fan frequency converter connects
Onto the motor of the blower of waste gas collection device；The interface of exhaust gas index on-line detector is connected to the air supply tube of waste gas collection device
On road；The sensing probe of granule content detector is connected on the gas outlet of hypergravity bed filter；The master of hypergravity bed frequency converter
Loop output is connected on the motor of hypergravity bed filter；The power outputting section and ion generator of frequency modulation and voltage modulation power supply
Transformer connection；The interface of exhaust gas discharge index on-line detector is connected on the chimney breast of smoke stack emission device；
When exhaust gas discharge index changes, exhaust gas discharge index on-line checking is detected immediately upon the variation of index, immediately instead
It is fed to PLC controller, PLC controller instructs frequency modulation and voltage modulation power supply adjustment frequency and voltage, fills so as to adjust plasma
The power set, and plasma generator is made to reach resonance power save mode；If particle content index changes, PLC control
The electric machine frequency of device instruction hypergravity bed frequency converter adjustment hypergravity bed filter makes particle index so as to adjust motor speed
Consistently achieve standard state；
If hypergravity bed filter, plasma generator are more than rated power, PLC controller can auto-control gas sampling dress
The fan frequency converter set adjusts the frequency of blower motor, reduces intake, so that exhaust gas discharge index be made to consistently achieve discharge mark
It is quasi-；
The frequency modulation and voltage modulation power supply uses AC-DC-AC circuit, the power supply as driving ion generator capacitive load, frequency modulation
Pressure regulation signal is connected with PLC controller, frequency modulation and voltage modulation power supply be power 5-100kVA, voltage 3kV-9kV, frequency 1kHZ-6kHZ,
Frequency modulation and pressure regulation electric signal are 4-20mADC.
2. the automatic control system of low-temperature plasma exhaust-gas treatment as described in claim 1, characterized in that the wind speed sensing
Control signal end of device is connected in PLC controller；Air velocity transducer threshold wind velocity 0.4-0.8m/s, measurement range 0-60m, electricity
Signal is 4-20mADC.
3. the automatic control system of low-temperature plasma exhaust-gas treatment as described in claim 1, characterized in that the fan frequency conversion
Control signal end of device is connected in PLC controller, 3 phase 380V of fan frequency converter input voltage AC, inputs frequency 50Hz, defeated
Frequency 0-400Hz out, electric signal 4-20mADC.
4. the automatic control system of low-temperature plasma exhaust-gas treatment as described in claim 1, characterized in that the exhaust gas index
On-line detector electrical signal line is connected in PLC controller, and exhaust gas index on-line detector electric signal is 4-20mADC, measurement range
0-1000ppm。
5. the automatic control system of low-temperature plasma exhaust-gas treatment as described in claim 1, characterized in that the granule content
The transducing signal terminal of detector is connected in PLC controller, and granule content detector electric signal is 4-20mADC, measurement range 0-
2000ppm。
6. the automatic control system of low-temperature plasma exhaust-gas treatment as described in claim 1, characterized in that the hypergravity bed
Control signal end of frequency converter is connected in PLC controller, 3 phase 380V of hypergravity bed frequency converter input voltage AC, inputs frequency
50Hz, output frequency 0-400Hz, electric signal 4-20mADC.
7. the automatic control system of low-temperature plasma exhaust-gas treatment as described in claim 1, characterized in that the exhaust gas discharge
The electrical signal line of index on-line detector is connected in PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198515.6A CN105629867B (en) | 2016-04-01 | 2016-04-01 | The automatic control system of low-temperature plasma exhaust-gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198515.6A CN105629867B (en) | 2016-04-01 | 2016-04-01 | The automatic control system of low-temperature plasma exhaust-gas treatment |
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| CN105629867A CN105629867A (en) | 2016-06-01 |
| CN105629867B true CN105629867B (en) | 2019-03-19 |
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| CN106731577B (en) * | 2016-12-29 | 2019-08-20 | 上海新耦合空气净化技术有限公司 | A kind of air cleaning unit of volatile organic contaminant |
| CN110793078A (en) * | 2019-10-21 | 2020-02-14 | 长虹美菱股份有限公司 | Plasma oil fume treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008123749A1 (en) * | 2007-04-10 | 2008-10-16 | 21C Shipbuilding Co., Ltd. | Underwater plasma processing apparatus and system and method for processing ballast water of ship using the same |
| CN103949131A (en) * | 2014-05-08 | 2014-07-30 | 上海兰宝环保科技有限公司 | Photochemistry coupling low-temperature plasma waste gas treatment device |
| CN104474891A (en) * | 2014-12-04 | 2015-04-01 | 北京科太亚洲生态科技有限公司 | Organic waste gas treatment system |
| CN204768052U (en) * | 2015-05-24 | 2015-11-18 | 王永春 | Photochemistry manifold type low temperature plasma waste gas treatment system |
| CN205450726U (en) * | 2016-04-01 | 2016-08-10 | 赵凤明 | Low temperature plasma exhaust -gas treatment's automatic control system |
-
2016
- 2016-04-01 CN CN201610198515.6A patent/CN105629867B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008123749A1 (en) * | 2007-04-10 | 2008-10-16 | 21C Shipbuilding Co., Ltd. | Underwater plasma processing apparatus and system and method for processing ballast water of ship using the same |
| CN103949131A (en) * | 2014-05-08 | 2014-07-30 | 上海兰宝环保科技有限公司 | Photochemistry coupling low-temperature plasma waste gas treatment device |
| CN104474891A (en) * | 2014-12-04 | 2015-04-01 | 北京科太亚洲生态科技有限公司 | Organic waste gas treatment system |
| CN204768052U (en) * | 2015-05-24 | 2015-11-18 | 王永春 | Photochemistry manifold type low temperature plasma waste gas treatment system |
| CN205450726U (en) * | 2016-04-01 | 2016-08-10 | 赵凤明 | Low temperature plasma exhaust -gas treatment's automatic control system |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180205 Address after: 250100 southeast corner of workshop No. 1, No. 8, Austrian Road, Lishi District, Ji'nan, Shandong Applicant after: Shandong Rui Qing ozone equipment Co., Ltd. Address before: 250104 Shandong city of Ji'nan province high tech Zone (Licheng District) Sun Village of new Chunhui road and road far northeast corner of the intersection of Shandong Industrial Park big steam environmental technology company Applicant before: Zhao Fengming |
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