CN205353728U - Electrostatic precipitator shakes and beats heating PLC two -node cluster hot backup control system - Google Patents
Electrostatic precipitator shakes and beats heating PLC two -node cluster hot backup control system Download PDFInfo
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- CN205353728U CN205353728U CN201620067080.7U CN201620067080U CN205353728U CN 205353728 U CN205353728 U CN 205353728U CN 201620067080 U CN201620067080 U CN 201620067080U CN 205353728 U CN205353728 U CN 205353728U
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Abstract
The utility model relates to an electrostatic precipitator shakes and beats heating PLC two -node cluster hot backup control system, heating control unit is beaten including shaking, PLC the control unit, the scene shakes and makes the motor, on -the -spot electric heater and temperature transducer, PLC the control unit contains the main CPU that uses, reserve CPU and a plurality of long -range IO sub -station, it is main with carrying out the data switching through optic fibre between CPU and reserve CPU, adopt the communication of ethernet bus looped netowrk between two CPU and long -range IO sub -station and between each long -range IO sub -station, the scene shakes, and make the motor and on -the -spot electric heater beats heating control unit and PLC the control unit communication connection respectively through shaking, heating the control unit is beaten to PLC the control unit output dry contact signal to shaking, it shakes to receive simultaneously beats the dry contact signal of heating control unit feedback. The utility model discloses can realize shaking with electrostatic precipitator and play the heating system butt joint, it shakes to have reduced beats the PLC of heating control system module quantity, has realized that control system hardware, communication are redundant, has reduced the equipment trouble down time rate simultaneously, provides the maintenance logistics for the high -efficient management of enterprise.
Description
Technical field:
The utility model proposes a kind of electrostatic precipitator rapping heating PLC Hot standby Redundant Control System, relate to electrostatic precipitator rapping heating system two-node cluster hot backup centralized Control, low voltage control system hardware, communication redundancy can be realized easily, strengthen electric precipitation rapping heating control system stability.
Background technology:
Dust major part electrostatic precipitator in order to trap dust in flue gas, be deposited on dedusting plate carries out deashing by mechanical vibrator mode, this device is usually provided in the sidepiece of cleaner unit negative electrode or anode, used more be arm sinker rapping, for preventing the secondary fly-up of dust, its rapping system need to be carried out logic control, it is to avoid simultaneously rapping and the secondary fly-up that causes.And the mode that at present controller of a lot of electronic controls or PLC many employings single unit multiplexer (MUX slave computer control, if this mode communication is broken down or certain controller failure, cause the arm sinker rapping simultaneously of same electric field most probably, cause secondary fly-up.
And existing adopt of major part electric-heating control system gathers single channel temperature temperature control mode that multichannel heater is controlled more simultaneously, therefore temperature data transmission need to be carried out by form of communication or increase modular converter when adopting multiple slave computer controller, thus increasing equipment failure rate and improve equipment control cost.
Meanwhile, multiple controller lower computer systems are integrated by master system, then need adding hardware equipment simultaneously need to exploitation upper computer software interface, expend substantial amounts of human and financial resources.And after control system is gone into operation and run, power plant runs and attendant need to be familiar with the software and hardware control system that manufacturer provides, and when many set centralized Control, equally power plant is run and attendant proposes higher technology requirement, add operation and maintenance difficulty, be also unfavorable for management simultaneously.
Summary of the invention:
For the problems referred to above, the utility model proposes a kind of electrostatic precipitator rapping heating PLC Hot standby Redundant Control System.
Concrete technical scheme of the present utility model is as follows:
A kind of electrostatic precipitator rapping heating PLC Hot standby Redundant Control System, including rapping heat control unit, PLC control unit, on-the-spot electric motor of shaker and situ electric heater, described PLC control unit comprises primary CPU, spare CPU and multiple remote I/O substation, data exchange is carried out by optical fiber between primary CPU and spare CPU, industry ethernet looped network communication is adopted between two CPU and remote I/O substation and between each remote I/O substation, on-the-spot electric motor of shaker and situ electric heater are respectively through rapping heat control unit and PLC control unit communication connection, PLC control unit output dry contact signal is to rapping heat control unit, receive the dry contact signal of rapping heat control unit feedback simultaneously.
Further design of the present utility model is in that:
Rapping heat control unit includes main switch, multiple rapping heated power loop and multiple rapping computer heating control feedback circuit；
Each rapping heated power loop includes comprising miniature circuit breaker, A.C. contactor and thermorelay, and rapping heated power loop is respectively connected to on-the-spot electric motor of shaker and electric heater through power cable.
Each rapping computer heating control feedback circuit includes: three rotary switches of rapping heating cabinet panel, PLC control system output input dry contact, on the spot start-stop button and major loop A.C. contactor.
Rapping heat control unit includes many groups, it is achieved control respectively.
This system also includes master system, and master system can be become by many fabric, it is achieved host computer is standby mutually.
This utility model has the advantage that
1, the utility model proposes a kind of electrostatic precipitator rapping heating PLC Hot standby Redundant Control System, this system is with PLC control unit for core, can simple, fast realization dock with multiple rapping heat control unit, adopt dual processors, dual power supply, duplex module simultaneously, data syn-chronization between two set CPU can be realized, when primary cpu fault, native system can automatically switch to spare CPU immediately, and rapping heating system is carried out monitor in real time.
2, this utility model adopts the mode that separate unit stove Single PLC centralized integrated controls, and decreases the fault rate of many motors control communication among unit, it is to avoid the dust secondary fly-up caused because of communication failure between controller and the problem such as electric heating temperature is asynchronous.
3, this utility model carries out data exchange by hot standby optical fiber between CPU main website and slave station, industry ethernet looped network communication is adopted between CPU and I/O substation and between each I/O substation, the function of Millisecond switching between CPU can be realized, thus improve the stability of system safety operation, reliability.Native system achieves Stand Mill and is completely independent, and the module in each frame all can be hot-swappable, it is easier to the maintenance of staff and maintenance, has saved on-site maintenance cost.
4, electrostatic precipitator rapping heating PLC Hot standby Redundant Control System arranges two set communication modules, can carry out communication with two master systems, it is achieved master system is standby, communication redundancy mutually, can reduce the manpower and financial losses that cause because of communication failure simultaneously.
Accompanying drawing illustrates:
Fig. 1 is electrostatic precipitator rapping heating control system figure；
Fig. 2 is the configuration of two-node cluster hot backup PLC system and Communication Graph；
Fig. 3 is rapping heating cabinet unity loop control and feedback electric diagram；
Fig. 4 is rapping heating cabinet power loop electric diagram.
Detailed description of the invention:
As it is shown in figure 1, this utility model includes rapping heat control unit, PLC control unit, on-the-spot electric motor of shaker and situ electric heater, temperature transducer and master system.PLC control unit comprises primary CPU, spare CPU and multiple remote I/O substation, data exchange is carried out by optical fiber between primary CPU and spare CPU, industry ethernet looped network communication is adopted between two CPU and remote I/O substation and between each remote I/O substation, on-the-spot electric motor of shaker and situ electric heater are respectively through rapping heat control unit and PLC control unit communication connection, PLC control unit output dry contact signal, to rapping heat control unit, receives the dry contact signal of rapping heat control unit feedback simultaneously.
(1) PLC control unit comprises primary CPU, spare CPU and I/O substation；
(2) rapping heat control unit can be formed (in Fig. 1 the first rapping heat control unit, the second rapping heat control unit ... the n-th rapping heat control unit) according to field condition by multiple subelements, and the I/O substation in PLC control unit can be extended to multiple substations pattern according to rapping heating circuit quantity, temperature transducer quantity；
(3) master system can by two overlapping switches, to realize communication redundancy, hardware standby mutually for two set host computers.
This part operation principle is as follows:
Rapping heating cabinet cabinet face arranges three rotary switches; the equipment that realizes is automatic, manual, shut down three kinds of control modes; when rotary switch rotates to time automatic; PLC control unit controls system output dry contact signal to rapping heat control unit; and gather the status signal of auxiliary reclay feedback in rapping heating cabinet; the temperature signal of collection site temperature transducer feedback simultaneously, it is achieved vibrated system logic control, electric heating system temperature scaling factor.PLC control unit configuration simultaneously two set cpu system, when primary CPU runs work, spare CPU only monitors data in its data base, and carry out synchronized update, when primary CPU breaks down, spare CPU automatically switches into monitor state immediately, and the data of storage still can be conducted interviews by former primary CPU simultaneously, when, after host CPU failture evacuation, system program can guarantee that two data base's Complete Synchronizations.
Fig. 2 shows the configuration of two-node cluster hot backup PLC control system and network communication figure, mainly includes two set switches, two set system control cpu and multiple I/O substations.
(1) two set system control cpu frame is completely independent, each frame all configures power module, CPU, master station module and two set ethernet modules, every road cpu system all can realize and the function of primary switch, backup switch data communication, adopt hot standby optical fiber to carry out data exchange between CPU module, it may be achieved to switch rapidly and two sets of data storehouse Complete Synchronizations between system CPU simultaneously.
(2) can count according to rapping computer heating control, on-the-spot feedback states is counted and thermometric loop quantity carries out the extension of I/O substation, and each I/O substation all configures substation module, it may be achieved the looped network communication between cpu system and I/O substation.
This part operation principle is as follows:
For conventional dual chamber five E field electrostatic precipitator, separate unit stove two cleaner units respectively 1# electric cleaner, 2# electric cleaner, every electric cleaner comprises two rooms, respectively a Room and two Room.
Separate unit stove 4 rapping heating cabinets (interior for rapping heat control unit) of configuration, i.e. 1 rapping heating cabinet of each room configuration, every rapping heating cabinet power loop comprises 10 tunnel rappings, 10 road insulators (porcelain axle) heating and No. 5 ash buckets heating, its control DO point be 100 altogether, feedback DI point be 140 (wherein 40 is material level feedback), thermometric AI signal Gong Wei 60 tunnels altogether.
Configure 2 I/O substations (corresponding 2 the rapping heating cabinets in each substation), each substation is containing DO point 64 tunnel, DI point 96 tunnel, AI point 32 tunnel, namely containing 2 DO modules (32 points of each module), 3 DI modules (32 points of each module) and 4 AI modules (8 points of each module) in the frame of each substation.Simultaneously configuration two set system control cpus, namely Stand Mill, dual power supply, dual processors, double; two master station module, and often overlap according to field condition cpu system configuration Dual-Ethernet module, thus realizing low pressure rapping heating system communication redundancy.
As shown in Figure 3, for unity loop control in rapping heat control unit and feedback electric diagram, Schneider TeSys collection of contact device selected by major loop A.C. contactor, and its control coil selects AC220V coil, and rated operational current selects according to concrete load rating electric current；Control relay K A101 and select DC24V coil, two groups of auxiliary contact；Immediate feedback relay K A001 selects AC220V coil, two groups of auxiliary contact；Display lamp HL01 selects AC220V red and green color lamp.
This part operation principle is as follows:
(1) rapping heat control unit possesses automatically, shuts down, mobile phone controls function, and cabinet panel arranges three rotary switches.Under PLC control model, rotary switch SA01 rotates to automatic transmission, on local operation case panel, three knob SL01 also rotate to automatic transmission, control relay K A101 in PLC control unit and obtain high level adhesive according to PLC control instruction, it controls dry contact and is connected to rapping heat control unit by cable between cabinet, major loop A.C. contactor KM01 obtains electric adhesive, and on-the-spot electric motor of shaker or electric heater run.When three knob SL01 rotate extremely manual or shutdown shelves on local operation case panel, motor can be realized at scene on the spot or heater is manual, shutdown controls.When on local operation case panel, three knob SL01 rotate to automatic transmission, and rapping heating cabinet panel rotary switch SA01 is rotated to, time manual, being realized the Non-follow control of equipment by rapping heat control unit.
(2) when electric motor of shaker, electric heater run, its major loop A.C. contactor KM01 adhesive, the normally opened Guan Bi of KM01, is connected to normally opened for one group dry contact in PLC control unit by immediate feedback relay K A001, thus equipment running status is judged by PLC system.
(3) rapping heating cabinet panel arranges bi-colour LED, and corresponding circuit equipment running status is displayed.One group of normal opened contact of auxiliary reclay KA001 and bi-colour LED HL01 red end are attached; the normally closed contact of A.C. contactor KM01 is connected with bi-colour LED HL01 green end, and when the apparatus is in operation, KM01 obtains its normally closed contact electric and disconnects; normal opened contact closes; auxiliary reclay KA001 adhesive, the normal opened contact Guan Bi of KA001, display lamp HL01 sends out a warning; when equipment downtime; KM01 not electric, auxiliary reclay KA001 not adhesive, display lamp HL01 gives a green light.
As shown in Figure 4, for rapping heat control unit power loop electric diagram, mainly comprise main switch, branch miniature circuit breaker, A.C. contactor and thermorelay.
Main switch QF0 selects according to its total rated operational current of all loads；Schneider iC65 series mini chopper selected by branch miniature circuit breaker, according to concrete loading condition, selects C type (low-voltage distribution is used) or D type micro-disconnected (motor protection is used) as loop lead-in circuit breaker；Schneider TeSys collection of contact device selected by major loop A.C. contactor, and its control coil selects AC220V coil.
This part operation principle is as follows:
After rapping heat control unit powers on, first Guan Bi main switch QF0, then it is respectively closed corresponding circuit miniature circuit breaker QF01-QFnn.Rotating to manual mode at three rotary switches of local operation case, A.C. contactor KM01-KMnn coil obtains electric adhesive, and equipment runs；Rotating to automatic mode at three rotary switches of local operation case, rotate three rotary switch SA01-SAnn on rapping heating cabinet panel to manual, A.C. contactor KM01-KMnn obtains electric, and electric motor of shaker or electric heater run.
Claims (6)
1. an electrostatic precipitator rapping heating PLC Hot standby Redundant Control System, including rapping heat control unit, PLC control unit, on-the-spot electric motor of shaker, situ electric heater and temperature transducer, is characterized in that:
Described PLC control unit comprises primary CPU, spare CPU and multiple remote I/O substation, data exchange is carried out by optical fiber between primary CPU and spare CPU, industry ethernet looped network communication is adopted between two CPU and remote I/O substation and between each remote I/O substation, on-the-spot electric motor of shaker and situ electric heater are respectively through rapping heat control unit and PLC control unit communication connection, PLC control unit output dry contact signal, to rapping heat control unit, receives the dry contact signal of rapping heat control unit feedback simultaneously.
2. electrostatic precipitator rapping according to claim 1 heating PLC Hot standby Redundant Control System, is characterized in that: described rapping heat control unit includes main switch, multiple rapping heated power loop and multiple rapping computer heating control feedback circuit.
3. electrostatic precipitator rapping according to claim 2 heating PLC Hot standby Redundant Control System, it is characterized in that: each rapping heated power loop comprises miniature circuit breaker, A.C. contactor and thermorelay, rapping heated power loop is respectively connected to on-the-spot electric motor of shaker and electric heater through power cable.
4. the electrostatic precipitator rapping heating PLC Hot standby Redundant Control System according to Claims 2 or 3, is characterized in that: each rapping computer heating control feedback circuit includes: three rotary switches, PLC control system output on rapping heat control unit panel input dry contact, on the spot start-stop button and major loop A.C. contactor.
5. electrostatic precipitator rapping according to claim 1 heating PLC Hot standby Redundant Control System, is characterized in that: rapping heat control unit includes many groups.
6. electrostatic precipitator rapping according to claim 1 heating PLC Hot standby Redundant Control System, is characterized in that: this system also includes master system.
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| CN201620067080.7U CN205353728U (en) | 2016-01-22 | 2016-01-22 | Electrostatic precipitator shakes and beats heating PLC two -node cluster hot backup control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037778A (en) * | 2017-06-20 | 2017-08-11 | 合肥天鹅制冷科技有限公司 | Military cold liquid equipment control double copies system |
| CN109669343A (en) * | 2019-02-19 | 2019-04-23 | 湖南力宇新能源科技有限公司 | A kind of unit control system |
| CN110000158A (en) * | 2019-04-23 | 2019-07-12 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of program-controlled gas phase cabinet dust pelletizing system and control method |
| CN110883021A (en) * | 2019-10-30 | 2020-03-17 | 张家港宏昌钢板有限公司 | Automatic dust removing process for steel making and dust removing of ultrahigh-power electric arc furnace |
| CN112701938A (en) * | 2020-12-28 | 2021-04-23 | 中国航天空气动力技术研究院 | Rectifier power supply control device of combined arc heater |
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2016
- 2016-01-22 CN CN201620067080.7U patent/CN205353728U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037778A (en) * | 2017-06-20 | 2017-08-11 | 合肥天鹅制冷科技有限公司 | Military cold liquid equipment control double copies system |
| CN109669343A (en) * | 2019-02-19 | 2019-04-23 | 湖南力宇新能源科技有限公司 | A kind of unit control system |
| CN110000158A (en) * | 2019-04-23 | 2019-07-12 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of program-controlled gas phase cabinet dust pelletizing system and control method |
| CN110000158B (en) * | 2019-04-23 | 2024-03-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Program-controlled gas-phase electrical switch cabinet dust removal system and control method |
| CN110883021A (en) * | 2019-10-30 | 2020-03-17 | 张家港宏昌钢板有限公司 | Automatic dust removing process for steel making and dust removing of ultrahigh-power electric arc furnace |
| CN112701938A (en) * | 2020-12-28 | 2021-04-23 | 中国航天空气动力技术研究院 | Rectifier power supply control device of combined arc heater |
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