CN202356192U - Controller of electrostatic dust collector - Google Patents
Controller of electrostatic dust collector Download PDFInfo
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- CN202356192U CN202356192U CN2011205141120U CN201120514112U CN202356192U CN 202356192 U CN202356192 U CN 202356192U CN 2011205141120 U CN2011205141120 U CN 2011205141120U CN 201120514112 U CN201120514112 U CN 201120514112U CN 202356192 U CN202356192 U CN 202356192U
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- 239000000428 dust Substances 0.000 title abstract description 30
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 6
- 239000012717 electrostatic precipitator Substances 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000010354 integration Effects 0.000 abstract 1
- 230000005684 electric field Effects 0.000 description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000005367 electrostatic precipitation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 239000012716 precipitator Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- RLLPVAHGXHCWKJ-UHFFFAOYSA-N permethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 RLLPVAHGXHCWKJ-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a controller of an electrostatic dust collector, which belongs to the technical field of a high voltage electrostatic dust collector. The controller of the electrostatic dust collector comprises a main control unit, an I/O unit and an operating unit. The main control unit comprises a high voltage control module (1), a low voltage control module (2), a drive module (3), a communication interface circuit (4), a silicon controlled triggering and driving module (5), an analogue input circuit (6) and a photoelectric isolator (7). The controller of the electrostatic dust collector provided by the utility model has the advantages of simple structure, reliable performance, high cost performance, low cost, high degree of integration of product and the like.
Description
Technical field
The invention belongs to the high voltage electrostatic dust precipitator technical field, belong to a kind of control device of electrostatic precipitator in particular.
Background technology
Adopt after the dedusting technology, from the emission of chimney, again can't see dense black smog.Electrostatic precipitation by people generally acknowledge, ripe, high-efficiency reliable dedusting technology.Industry deduster commonly used be many such cylinder units side by side, form " honeycomb " shape, with the raising efficiency of dust collection.The central axis of each cylinder lead with the cylinder insulation that all suspended is referred to as corona wire; Metallic cylinder, we claim that it is a colelctor electrode.The positive pole of DC high-voltage power supply is connected on the metallic cylinder, and negative pole is connected on the corona wire.Its principle is after power connection, has just set up an inhomogeneous field between colelctor electrode and the corona wire, and electric field is maximum near the corona wire.Can change corona wire electric-field intensity on every side through regulating power source voltage.(3 * 106V/m) time, air will be breakdown and then ionization is taken place, and forms a large amount of positive and negative ion greater than its breakdown electric field critical value when airborne electric-field intensity.Anion with electric field to anodal drift, in the process of drift with dust in neutral dust granules bump, these dust granules attract electrons have made on the originally neutral dust lane negative electricity later on.Under effect of electric field, these all electronegative dust granules all are attracted on the colelctor electrode.When dust accumulated to a certain degree, through vibrating device, dust granules just fell into and reclaims ash bucket.If deduster is installed in the chimney bottom, the gas that contains flue dust gets into from an end of this " honeycomb ", just stay when going out with flue dust, become the gas of cleaning.
Electrostatic precipitator is widely used in every field such as metallurgy, electric power, chemical industry with its characteristics such as efficient, energy-conservation, low in energy consumption, and its adopts high-voltage DC power supply control technology, has experienced discrete component, integrated circuit and three epoch of Control Technique of Microcomputer.Microcomputer (like single chip microcomputer) electrostatic precipitation control scheme automaticity is high, control mode is flexible; But its power-supply system receives the interference of the forceful electric power magnetic that highfield and rectifier higher hamonic wave bring in practical work process; Often generation systems is controlled not normal, microcomputer " deadlock " phenomenons such as (i.e. " flight distance prefaces "), has reduced the safety and the reliability of dust pelletizing system widely.
Electrostatic precipitation is with the key equipment of high voltage rectification equipment as electric dust removing system, and its main effect is through DC voltage and DC current being provided to electric field, making the dust that gets into electric field after charged, become trapped in the pole plate polar curve, thereby reach the purpose of deashing.
At present; Electrostatic precipitation can only be accomplished high voltage control with independent high voltage control module, and controllers such as the other PLC of increasing of low-pressure section needs go to accomplish, and this just causes high-low pressure equipment can't reliably to be got in touch each other; Can only realize connecting through dry contact even complicated communication by on-the-spot laying-out; And it is interconnected to be that the transmission of unidirectional signal can't realize, has therefore limited the realization of a lot of functions, and the reliability of whole system also decreases.
Summary of the invention
The present invention discloses a kind of control device of electrostatic precipitator in order to solve above technical problem.
The control device of a kind of electrostatic precipitator of the present invention, said controller comprise main control unit, I/O unit, operating unit; It is characterized in that,
Said main control unit comprises that high voltage control module, low-pressure control module, driver module, communication interface circuit, controllable silicon trigger driver module, simulated measurement input circuit, optical isolation; Wherein:
Said high voltage control module links to each other with low-pressure control module; Said high voltage control module links to each other with I/O unit, operating unit through driver module; Said low-pressure control module links to each other with I/O unit, operating unit through driver module; Said low-pressure control module through optical isolation trigger driver module with controllable silicon, simulated measurement input circuit links to each other;
Said I/O unit is an input/output interface circuit;
Said operating unit is a finger-impu system; Said operating unit is a display unit.
Said high voltage control module is used DSP.Said low-pressure control module is used ARM.Bus between said high voltage control module and the low-pressure control module is the RS232 bus.Bus between said high voltage control module and the low-pressure control module is CAN bus or other types bus.Said key input section is a kind of matrix keyboard.Said liquid crystal display output is a kind of LCDs.
The applied high voltage electrostatic dust precipitator of the present invention comprises deduster body part, high-pressure section, low-pressure section and master system.
The deduster body part is mainly accomplished the dedusting work of flue gas, also is the control object of the controller of high voltage electrostatic dust precipitator of the present invention, is installed in the chimney of flue gas process.
High-pressure section comprises high voltage step-up part and rectifying part, and the DC voltage that the high-pressure section rectification goes out several ten thousand volts is added on the two poles of the earth of deduster body and then realizes dedusting work such as gas ionization, dust are charged.
Low-pressure section is mainly unloaded ash, ash-transmission system, insulator heating control system by anode, cathode rapping system, ash bucket and is formed, and is mainly used in that the dust of accomplishing mobile phone on the pole plate carries out vibration dust-cleaning and is transferred out the process of dust by ash bucket.When coal-fired flue-gas passed through high voltage electric field, dust in flue gas was charged because of ionization, and charged dust is adsorbed to pole plate; Through the rapping pole plate dust is dropped into dust collect plant; Clear through conveying arrangement, reach the purpose of flue, the function of low-pressure section is controlled motor, rapping pole plate exactly.By flue gas is that order is passed through several electric fields, and it is different that the dust of each electric field is pounced on the collection amount, and each electric field anode rapping apparatus should be provided with different rapping time and shaking cycle, thereby avoids dust secondary fly-up and corona phenomenon to take place.Do not pounce on the effect of collection dust because cathode line does not play simultaneously, and ash-collecting amount is less, so general cathode rapping device adopts continuous rapping, can normal bloom and current-sharing to guarantee cathode line.Low-pressure section and epigynous computer section are networked, and can realize the Long-distance Control of host computer.
The ipc monitor system carries out real-time monitoring to on-the-spot cleaner, can in time react the operation conditions of field apparatus rapidly, and allow the operations staff to carry out Long-distance Control.Master system provides a good man-machine interaction interface for the operational management personnel, can show intuitively through screen the operational factor and the running status of each equipment of electric cleaner to have made things convenient for the control of operating personnel to equipment.
High voltage control and low pressure rapping that high-low pressure integratedization controller of the present invention will be imported electric field add thermal control and are integrated in the cabinet; Overcome the isolatism of existing electrostatic precipitation high voltage control module, accomplished high voltage control and low voltage control simultaneously, saved the PLC cabinet; Realized high-low pressure integratedization truly; Especially under the functional conditions that needs step-down rapping etc., remove the loaded down with trivial details of on-the-spot laying-out from, directly in switch board, realized low voltage control.Adopt brand-new control technology and control platform, have operation, the display interface of hommization more and very strong control function easily.This high-low pressure interlock control has improved the control accuracy and the reliability of whole electric precipitation electric-control system greatly.
The technical solution adopted for the present invention to solve the technical problems is: the integrated DSP and ARM two CPU that is used to handle low voltage control that is used for handle high voltages control on the main control unit plate of controller.The two CPU of ARM and DSP communicate with serial port; ARM is responsible for button processing, liquid crystal display, communication and low-voltage equipment control; The controllable silicon that DSP is responsible for conversion, data and the high-tension apparatus of analog quantity triggers.Digital quantity input, the output control of ARM and DSP are connected on the I/O cell board through winding displacement, and the I/O cell board is isolated with outside input, output interface through photoelectricity and connected.Can add thermal control in the high voltage control that will import electric field and low pressure rapping and be integrated in the cabinet, promptly accomplish high voltage control and low voltage control simultaneously.
The present invention compared with prior art has simple in structure, dependable performance, cost performance is high, cost is low, the integrated degree advantages of higher of product.
Description of drawings
Accompanying drawing 1 is the structural representation of the controller of high voltage electrostatic dust precipitator.
The specific embodiment
Fig. 1 is that the control device of electrostatic precipitator of the present invention comprises that high voltage control module 1, low-pressure control module 2, driver module 3, communication interface circuit 4, controllable silicon trigger driver module 5, simulated measurement input circuit 6, optical isolation 7; Wherein: said high voltage control module 1 links to each other with low-pressure control module 2; Said high voltage control module 1 links to each other with I/O unit, operating unit through driver module 3; Said low-pressure control module 2 links to each other with I/O unit, operating unit through driver module 3; Said low-pressure control module 2 links to each other with controllable silicon triggering driver module 5, simulated measurement input circuit 6 through optical isolation 7; Said I/O unit is an input/output interface circuit 10; Said operating unit is a finger-impu system 8; Said operating unit is a display unit 9.
Said high voltage control module 1 is DSP; Said low-pressure control module 2 is ARM; Bus between said high voltage control module 1 and the low-pressure control module 2 is the RS485 bus; Said finger-impu system 8 is a kind of matrix keyboards; Said display unit 9 is a kind of LCDs.
In Fig. 1, main control unit connects with the I/O unit through 50 faller gill lines, connects with push-button unit through 20 faller gill lines, connects with liquid crystal display through 40 faller gill lines.The DSP of the ARM of low-pressure control module 2 and high voltage control module 1 communicates through serial port; ARM will read back high pressure data and state to be saved to RAM and deliver to liquid crystal display and show from DSP, also the control signal of outside sent to the operations such as start and stop of DSP control high pressure.DSP is responsible for after isolating through photoelectricity, carrying out analog-to-digital conversion according to the analog quantity that collects, and judges that according to data the control silicon controlled triggers the operations such as voltage raising and reducing that reach high-tension apparatus.
Because the I/O mouth driving force of ARM, DSP is limited, ARM to liquid crystal display and button and DSP and ARM to the operation of I/O unit all through by drives such as gates.Because the data of DSP and operand are big, the speed of service is had relatively high expectations, so external RS485 is to be accomplished by ARM with communicating by letter of CAN bus etc.
Claims (1)
1. the control device of an electrostatic precipitator, said controller comprises main control unit, I/O unit, operating unit; It is characterized in that,
Said main control unit comprises that high voltage control module (1), low-pressure control module (2), driver module (3), communication interface circuit (4), controllable silicon trigger driver module (5), simulated measurement input circuit (6), optical isolation (7); Wherein:
Said high voltage control module (1) links to each other with low-pressure control module (2); Said high voltage control module (1) links to each other with I/O unit, operating unit through driver module (3); Said low-pressure control module (2) links to each other with I/O unit, operating unit through driver module (3); Said low-pressure control module (2) links to each other with controllable silicon triggering driver module (5), simulated measurement input circuit (6) through optical isolation (7);
Said I/O unit is input/output interface circuit (10);
Said operating unit is finger-impu system (8); Said operating unit is display unit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205141120U CN202356192U (en) | 2011-12-06 | 2011-12-06 | Controller of electrostatic dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205141120U CN202356192U (en) | 2011-12-06 | 2011-12-06 | Controller of electrostatic dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202356192U true CN202356192U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205141120U Expired - Fee Related CN202356192U (en) | 2011-12-06 | 2011-12-06 | Controller of electrostatic dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202356192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394413A (en) * | 2013-08-06 | 2013-11-20 | 金华大维电子科技有限公司 | Pulse power supply controller for electric dedusting |
-
2011
- 2011-12-06 CN CN2011205141120U patent/CN202356192U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394413A (en) * | 2013-08-06 | 2013-11-20 | 金华大维电子科技有限公司 | Pulse power supply controller for electric dedusting |
| CN103394413B (en) * | 2013-08-06 | 2016-04-27 | 金华大维电子科技有限公司 | A kind of electric precipitation pulse power source control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121206 |