CN201346498Y - Controller for electric deduster - Google Patents
Controller for electric deduster Download PDFInfo
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- CN201346498Y CN201346498Y CNU2008201569607U CN200820156960U CN201346498Y CN 201346498 Y CN201346498 Y CN 201346498Y CN U2008201569607 U CNU2008201569607 U CN U2008201569607U CN 200820156960 U CN200820156960 U CN 200820156960U CN 201346498 Y CN201346498 Y CN 201346498Y
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Abstract
The utility model provides a controller for an electric deduster, which comprises control units and a turbidimetric apparatus; wherein the turbidimetric apparatus can real-timely measure the dust concentration in a flue outlet of the electric deduster, and converts a smoke concentration signal into an analog current signal and transmits the analog current signal to the control units; and the control units which are in a turbidity optimization mode can dynamically regulate the electric energy input according to the dust concentration in a flue. When the smoke volume and the smoke concentration are increased, the high voltage control parameters of all electric fields in the system are automatically adjusted, and the input power is also correspondingly increased at the same time; when the smoke volume is small, under the working condition of increased transient high voltage and current, the input power is correspondingly reduced, and moreover, emission can be always kept below the set value of 50mg/Nm<3>; consequently, the purpose of energy saving is realized, and an ideal performance ratio is finally achieved.
Description
Technical field
The utility model relates to a kind of energy-saving control device, more particularly, relates to a kind of control device of electric cleaner.
Background technology
Present industry is such as the electric cleaner of iron and steel domain, its duty is round-the-clock working continuously, referring to Fig. 1, traditional electric cleaner comprises an electric field 10 and a control module 11 ' thereof, transformation rectification unit 12 and ash bucket 13, two electric field 20 and control modules 21 ' thereof, transformation rectification unit 22 and ash bucket 23, three electric field 30 and control modules 31 ' thereof, transformation rectification unit 32 and ash bucket 33, chimney intake 40, flue outlet 50 and defeated ash-pit 60, wherein the control device of electric cleaner is exactly the control module 11 ' among the figure in fact, 21 ' and 31 ', control module has adopted height-rise pressure-controlled mode, make whole power supply reach energy input maximization, this working method is to exhaust gas volumn or the dust ratio is big and the stable environment-friendly dust removing effects of industrial and mineral of discharging flue gas, but in actual applications since the iron-smelting raw material variety diversity (such as the Australia ore deposit is arranged, Brazil ore deposit), simultaneously because the output of required production is also different, at this moment sinter fume amount fluctuation can be big, and particularly flue dust is seldom near 50mg/Nm
3The time, control module also need be imported rated power, but that be actually used in the electric energy of dedusting this moment is very little, so cause the waste of electric energy of the overwhelming majority, causes efficiency ratio very low.
Referring to Fig. 2, flue gas is introduced into an electric field dust removal process after entering chimney intake 40, and the flue gas after the dedusting enters two electric field dust removal process, and in like manner the flue gas after the dedusting enters three electric field treatment again, and the flue gas after three electric field treatment directly discharges.This moment, flue gas concentration was at 50mg/Nm
3, in the entire process process, three electric field required input power is the substantial constant 70KW/H that do not alter an agreement.But when process condition is relatively good (entrance concentration is low relatively), discharged flue gas concentration may reach 40mg/Nm
3Or lower, be better than discharge standard, the power that consume this moment is the substantial constant 70KW/H that do not alter an agreement still.
Find out no matter smoke inlet concentration is high or low that from above three electric field power consumptions are the substantial constant 70KW/H that do not alter an agreement.This working method can cause the situation of the waste electric energy of " low load with strong power " on the one hand, also can cause equipment to be operated at full capacity for a long time on the other hand, and its Acceptable life can reduce greatly.Obviously, the open loop control mode of this extensive style of electric cleaner promptly can not be adjusted the control model of dedusting electric energy dynamically according to dust concentration, can not satisfy the requirement of national regulation energy-saving and emission-reduction.
The utility model content
Can not dynamically adjust the defective of dedusting electric energy according to dust concentration at the control device of present electric cleaner, the control device of electric cleaner described in the utility model can be done dynamic adjustment to electric energy input according to the dust concentration in the flue, reach purpose of energy saving, and prolong service life of equipment.
For achieving the above object, the utility model provides a kind of control device of electric cleaner, comprise control module, described control module connects the electric field of described electric cleaner by the transformation rectification unit, described control device also comprises the turbidimetric apparatus in the flue outlet that is arranged on described electric cleaner, described control module is set to turbidity and optimizes pattern, and described turbidimetric apparatus is electrically connected with described control module.
The central shaft of described central shaft that is arranged on the turbidimetric apparatus in the flue outlet and flue outlet intersects, and the relative centrad of both central shafts is less than 3 degree.
Described turbidimetric apparatus comprises emitting diode, spectroscope, is arranged on the reflector of flue outlet output, detector and microprocessor and the transmitter corresponding with reflector, described detector, microprocessor, transmitter connect successively, and the output of described transmitter connects described control module and exports analog current signal.
Described transmitter connects described control module by shielded cable.
The electric field of described electric cleaner comprises an electric field, two electric fields and three electric fields of adjacency successively, the output of described three electric fields connects described flue outlet, described each electric field all connects the control module of coupling, the control module of described three electric fields is a master controller, described master controller connects the transmitter of described turbidimetric apparatus to receive analog current signal, and master controller connects and optimize the control module of a described electric field and two electric fields by fieldbus.
Adopt the control device of a kind of electric cleaner described in the utility model, because this control device comprises control module and is arranged on turbidimetric apparatus in the flue outlet of described electric cleaner, so this turbidimetric apparatus can be measured the dust concentration in the flue outlet of electric cleaner in real time, described turbidimetric apparatus just flue gas concentration signal is converted into analog current signal and transfers to described control module, described control module is in turbidity and optimizes pattern, can do dynamic adjustment to electric energy input according to the dust concentration in the flue, the high voltage control parameter of all electric fields in the automatic adjustment system when exhaust gas volumn and flue gas concentration increase, the also corresponding increase of input power simultaneously, exhaust gas volumn hour is under the operating mode that improves instantaneous pressure and electric current, the corresponding input power that reduces, and all the time can be with emission control at 50mg/Nm
3Below the setting value, reach purpose of energy saving, finally reach desirable efficiency ratio.
Description of drawings
Fig. 1 is the traditional electric cleaner and the structural representation of control device thereof;
Fig. 2 is the traditional electric cleaner and the theory diagram of control device thereof;
Fig. 3 is the structural representation of described electric cleaner and control device thereof;
Fig. 4 is the theory diagram of described electric cleaner and control device thereof;
Fig. 5 is the structural representation of described control module as master controller;
Fig. 6 is the structural representation of described turbidimetric apparatus.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
Referring to Fig. 3, the electric field of described electric cleaner comprises an electric field 10 of adjacency successively, two electric fields 20, three electric fields 30, the input of a described electric field 10 connects flue entrance 40, the output of described three electric fields 30 connects described flue outlet 50, described each electric field all connects the control module of coupling, promptly an electric field 10 connects its control module 11 by its transformation rectification unit 12, two electric fields 20 connect its control module 21 by its transformation rectification unit 22, three electric fields 30 connect its control module 31 by its transformation rectification unit 32, the control device of electric cleaner comprises described control module 11,21,31, the turbidimetric apparatus 80 that also comprises 50 li of flue outlets that are arranged on described electric cleaner in addition, the central shaft of the central shaft of turbidimetric apparatus 80 and flue outlet 50 intersects, and the relative centrad of both central shafts is less than 3 degree.Described turbidimetric apparatus 80 is connected with the control module 31 that is set to turbidity optimization pattern, this moment, the control module 31 of three electric fields 30 was a master controller, described master controller receives the analog current signal that turbidimetric apparatus 80 sends, and master controller connects and optimize the control module 11,21 of a described electric field 10 and two electric fields 20 by fieldbus.
Referring to Fig. 6, turbidimetric apparatus 80 comprises emitting diode 81, spectroscope 82, be arranged on the reflector 83 of flue outlet output, detector 84 corresponding and microprocessor and transmitter (not shown) with reflector, turbidimetric apparatus 80 selects for use the laser flue dust to measure model, using light measures in the attenuation principle of dusty gas, emitting diode 81 (the measuring distance maximum can arrive 15 meters) is as light source, light is divided into two-way through spectroscope 82, one the tunnel vertically reflects back into receiver 84 through flue to reflector 83 and through reflector 83, another road directly reflexes in the reference loop.Through twice of the light of flue by containing the flue of flue dust, light signal after the decay is received device 84 (photodiode) and receives, signal is sent on the microprocessor after amplifying and handles, microprocessor is by reference loop relatively and measure the difference in loop, through calculating, original flue dust turbidity dustiness signal being converted into 4～20mA analog current signal and transferring to described control module 31 by shielded cable after sending into transmitter.Turbidimetric apparatus now is set is output as dustiness signal (4～20mA correspondence, 0～500mg/m
3), the corresponding flue dustiness of the 4mA of turbidimetric apparatus output just 0mg/m
3, as the corresponding flue dustiness of turbidimetric apparatus output 12mA 250mg/m3, the electric cleaner master controller can calculate the dustiness in the current flue in real time according to the analog current signal of turbidimetric apparatus like this.
Referring to Fig. 5, turbidimetric apparatus output 4～20mA current analog amount signal inserts high-voltage electrostatic dust separator controller (EPIC II) control module wiring diagram #68 (-), the #69 (+) of three electric fields with shielded cable, on two interface pin, and this three electric control unit is set to master controller, startup turbidity optimizational function.This moment, analog current signal 4～20mA just participated in electric cleaner control (the electric cleaner master controller can calculate the dustiness in the current flue in real time according to the analog current signal of turbidimetric apparatus) directly, make under the prerequisite of emission compliance, consume the least possible power supply according to different process condition.Now setting fume emission is 50mg/Nm
3The time, this moment, corresponding turbidity feedback current was 8mA.This value is as the calibration value of whole fume emission.
The particular content of parameter setting is: 1) turbidity signal value of setting (1～99%), as the target component of controller control; 2) limiting value of turbidity signal (0～99%); 3) in the sampling interval (1～30 minute), calculate once every how long; 4) control feedback factor (0～100%); 5) minimum current value (0～100%) of permission optimization.
Fume emission is greater than 80mg/Nm
3, corresponding feedback signal is 10mA, this moment, controller was adjusted to specified maximum 100% to power output automatically, i.e. and three about 80KW/H of electric field power consumption of total power output, this is the output higher limit; As long as fume emission is less than 80mg/Nm
3, this moment, controller progressively reduced power output automatically, and is minimum to 40% of rated power, i.e. power saving mode.Even discharge lowlyer, also keep this power output constant.This is the bottoming value.Discharging flue gas concrete adjustment process in upper lower limit value is as follows: high-pressure electrostatic controller per minute to the value up to standard of the value of feedback of turbidity signal and setting more once, as long as value of feedback is lower than setting value, controller just lowers output 10% on original output power consumption basis, (if adjustment back value of feedback surpasses set value, then get back to the operating point of last time) once adjusted in i.e. output again after spending 5-30 minute after stablizing at once.If this moment, value of feedback still was lower than setting value, then exports power consumption and continue to reduce by 10%, so circulation.Surpass the operating point that setting value is then returned last time immediately if detect value of feedback midway.Still be lower than setting value if adjust continuously the back value of feedback, then keep 40% specified output constant.
The master control address of the master controller of three electric fields comprises an electric field, two control device of electric field addresses, and the master control controller can be optimized one, two control device of electric field simultaneously by fieldbus like this, thereby reaches the purpose of optimizing whole passage.Through actual measurement, the input power of back three electric fields that economize on electricity is on average about 50KW/H.Contrast original control and economize on electricity the input power of first three electric field on average at 70KW/H, power consumption reduces 20KW/H.
Referring to Fig. 4, what the utility model was used is closed-loop control system.4-20mA current signal by the turbidimetric apparatus sampling enters three control device of electric field.The controller of three electric fields is arranged to main control unit, and the operating instruction after handling is sent to one, two electric control units, and in Fig. 2, is not contact between three control modules in original control mode, works independently.The permission discharging of this deduster is 80mg/Nm
3As long as it is exactly up to standard promptly being lower than this discharge value.If actual discharge is lower than this numerical value, just can come suitable reduction efficiency of dust collection with the way that reduces the power supply input power, under the prerequisite that discharging does not exceed standard, reach the purpose of economize on electricity.There has been the feedback signal of turbidimetric apparatus just can realize the automation of this process.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of above embodiment.
Claims (5)
1, a kind of control device of electric cleaner, comprise control module, described control module connects the electric field of described electric cleaner by the transformation rectification unit, it is characterized in that: described control device also comprises the turbidimetric apparatus in the flue outlet that is arranged on described electric cleaner, described control module is set to turbidity and optimizes pattern, and described turbidimetric apparatus is electrically connected with described control module.
2, control device as claimed in claim 1 is characterized in that, the central shaft of described central shaft that is arranged on the turbidimetric apparatus in the flue outlet and flue outlet intersects, and the relative centrad of both central shafts is less than 3 degree.
3, control device as claimed in claim 2, it is characterized in that, described turbidimetric apparatus comprises emitting diode, spectroscope, is arranged on the reflector of flue outlet output, detector and microprocessor and the transmitter corresponding with reflector, described detector, microprocessor, transmitter connect successively, and the output of described transmitter connects described control module and exports analog current signal.
4, control device as claimed in claim 3 is characterized in that, described transmitter connects described control module by shielded cable.
5, as each described control device of claim 1 to 4, it is characterized in that, the electric field of described electric cleaner comprises an electric field, two electric fields and three electric fields of adjacency successively, the output of described three electric fields connects described flue outlet, described each electric field all connects the control module of coupling, the control module of described three electric fields is a master controller, described master controller connects the transmitter of described turbidimetric apparatus to receive analog current signal, and master controller connects and optimize the control module of a described electric field and two electric fields by fieldbus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201569607U CN201346498Y (en) | 2008-12-11 | 2008-12-11 | Controller for electric deduster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201569607U CN201346498Y (en) | 2008-12-11 | 2008-12-11 | Controller for electric deduster |
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| CN201346498Y true CN201346498Y (en) | 2009-11-18 |
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| CNU2008201569607U Expired - Fee Related CN201346498Y (en) | 2008-12-11 | 2008-12-11 | Controller for electric deduster |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102302979A (en) * | 2011-08-12 | 2012-01-04 | 杭州天明环保工程有限公司 | Electrostatic dust collector |
| CN103977899A (en) * | 2014-06-09 | 2014-08-13 | 唐山国丰钢铁有限公司 | Power saving control method for dry-dedusting high voltage electric field |
| CN105689130A (en) * | 2014-11-25 | 2016-06-22 | 东北师范大学 | Negative-feedback dedusting system based on magnetic reinforcement |
| CN105992651A (en) * | 2013-11-13 | 2016-10-05 | 首要金属科技奥地利有限责任公司 | Filtering of an exhaust gas of a metallurgical plant, which exhaust gas comprises solid particles |
| CN106000653A (en) * | 2016-06-12 | 2016-10-12 | 东北师范大学 | High-pressure electrostatic precipitation device with periodic scanning array |
| CN106423567A (en) * | 2016-12-05 | 2017-02-22 | 福建龙净环保股份有限公司 | Control method and control system for high voltage power package |
| CN106824540A (en) * | 2017-01-18 | 2017-06-13 | 浙江浙能嘉华发电有限公司 | A kind of wet electric closed-loop control power-saving method |
| CN107213990A (en) * | 2017-05-08 | 2017-09-29 | 浙江大学 | Electric dust removing system Performance Evaluation and operation optimizing system |
| CN107213988A (en) * | 2017-06-09 | 2017-09-29 | 哈尔滨恒昇电站设备有限公司 | With controllable cathode line of the board-like prickle discharge power of wedge angle and preparation method thereof |
| CN109127141A (en) * | 2018-09-19 | 2019-01-04 | 东北师范大学 | More suede electrodes imitate enterocinesia formula electrostatic precipitation section |
| CN109433422A (en) * | 2018-10-31 | 2019-03-08 | 润电能源科学技术有限公司 | A kind of electric precipitation Automatic adjustment method and device and storage medium |
| CN109731690A (en) * | 2018-11-20 | 2019-05-10 | 北京博谦工程技术有限公司 | A kind of control system of more high-voltage electrostatic dust separator power supplys |
-
2008
- 2008-12-11 CN CNU2008201569607U patent/CN201346498Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102302979A (en) * | 2011-08-12 | 2012-01-04 | 杭州天明环保工程有限公司 | Electrostatic dust collector |
| CN105992651A (en) * | 2013-11-13 | 2016-10-05 | 首要金属科技奥地利有限责任公司 | Filtering of an exhaust gas of a metallurgical plant, which exhaust gas comprises solid particles |
| CN103977899A (en) * | 2014-06-09 | 2014-08-13 | 唐山国丰钢铁有限公司 | Power saving control method for dry-dedusting high voltage electric field |
| CN105689130A (en) * | 2014-11-25 | 2016-06-22 | 东北师范大学 | Negative-feedback dedusting system based on magnetic reinforcement |
| CN106000653A (en) * | 2016-06-12 | 2016-10-12 | 东北师范大学 | High-pressure electrostatic precipitation device with periodic scanning array |
| CN106423567B (en) * | 2016-12-05 | 2018-10-19 | 福建龙净环保股份有限公司 | A kind of high voltage power supply group control method and control system |
| CN106423567A (en) * | 2016-12-05 | 2017-02-22 | 福建龙净环保股份有限公司 | Control method and control system for high voltage power package |
| CN106824540A (en) * | 2017-01-18 | 2017-06-13 | 浙江浙能嘉华发电有限公司 | A kind of wet electric closed-loop control power-saving method |
| CN107213990A (en) * | 2017-05-08 | 2017-09-29 | 浙江大学 | Electric dust removing system Performance Evaluation and operation optimizing system |
| CN107213990B (en) * | 2017-05-08 | 2019-04-23 | 浙江大学 | Electric dust removing system Performance Evaluation and operation optimizing system |
| CN107213988A (en) * | 2017-06-09 | 2017-09-29 | 哈尔滨恒昇电站设备有限公司 | With controllable cathode line of the board-like prickle discharge power of wedge angle and preparation method thereof |
| CN109127141A (en) * | 2018-09-19 | 2019-01-04 | 东北师范大学 | More suede electrodes imitate enterocinesia formula electrostatic precipitation section |
| CN109433422A (en) * | 2018-10-31 | 2019-03-08 | 润电能源科学技术有限公司 | A kind of electric precipitation Automatic adjustment method and device and storage medium |
| CN109731690A (en) * | 2018-11-20 | 2019-05-10 | 北京博谦工程技术有限公司 | A kind of control system of more high-voltage electrostatic dust separator power supplys |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20151211 |
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| EXPY | Termination of patent right or utility model |