CN201275503Y - Microcomputer observing and controlling instrument of electrostatic precipitator - Google Patents
Microcomputer observing and controlling instrument of electrostatic precipitator Download PDFInfo
- Publication number
- CN201275503Y CN201275503Y CNU2008201911026U CN200820191102U CN201275503Y CN 201275503 Y CN201275503 Y CN 201275503Y CN U2008201911026 U CNU2008201911026 U CN U2008201911026U CN 200820191102 U CN200820191102 U CN 200820191102U CN 201275503 Y CN201275503 Y CN 201275503Y
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- electric cleaner
- controlling instrument
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Abstract
The utility model relates to a microcomputer measuring and controlling instrument for an electric precipitator. The microcomputer measuring and controlling instrument comprises a monolithic processor circuit, a relay output control circuit, a keyboard input circuit and a display circuit, wherein, the monolithic processor circuit performs processing to the material level signal from an external material level sensor and then transmits a control command to control the action of the relay output control circuit to cause the ash bucket of the electric precipitator to realize automatic ash discharging; the relay output control circuit receives the command transmitted by the monolithic processor to control the on-off of the relay to drive an external contactor to run to realize the purpose that the shaking time of the cathode and the anode plates of the electric precipitator is set according to the shaking cycle and can adjust the cycle according to the operating conditions; the keyboard input circuit is connected with the monolithic processor circuit and is used for setting the functional parameters; and the display circuit is connected with the output terminal of the monolithic processor circuit. The utility model solves the problem of inconvenience during the process of correcting the shaking cycle for the electric precipitator, and has the advantages that the microcomputer measuring and controlling instrument realizes the adjustment of the shaking time without changing the control line and meets the requirements of low-voltage shaking of the electric precipitator and the automation of the ash-discharging system under the measuring and controlling action of the monolithic processor; the dust removal efficiency of the electric precipitator is improved; and the operation and the maintenance are convenient, and the cost of the equipment is low.
Description
Affiliated technical field
The utility model relates to a kind of microcomputer measuring and controlling instrument that is exclusively used in electric cleaner control cathode and anode low pressure rapping and ash bucket rapping, unloads ash, electric cleaner is mainly used in environmental protection electrostatic precipitation field, as the industrial equipment of multiple industries such as electric power, building materials, metallurgy, chemical industry, food and the flue gas ash removal of boiler occasion.
Background technology:
The difference of the adsorbed ability of electric cleaner cathode-anode plate itself is different with the position in the electric cleaner of place, causes their adsorbed Dust Capacities also inequality.Therefore, require shaking cycle, the rapping time of its electric motor of shaker of pole plate of diverse location also to answer different, only in this way, just can give full play to the optimum efficiency of electrostatic precipitator, time relay control mode is adopted in traditional electric cleaner low pressure rapping control, the corresponding cover control circuit of electric motor of shaker, components and parts are many, circuit is numerous and diverse, result in hand cramps to regular maintenance, and if will revise the very inconvenience of shaking cycle, rapping time, most cases is to be not suitable for revising, and therefore, efficiency of dust collection just has been subjected to certain influence.The ash bucket ash discharging system also needs the artificial ash that regularly unloads, operation inconvenience.Recently, along with the develop rapidly of PC, the PLC control technology also is applied in the middle of the automatic control of electric cleaner gradually, but because the too high extensive use that has limited it of cost.
Summary of the invention
In order to overcome the above-mentioned deficiency of prior art, the utility model provides a kind of electric control circuit that need not change just can realize the adjustment of rapping time and the electric cleaner microcomputer measuring and controlling instrument that ash discharging system is realized automation.
The technical scheme that its technical problem that solves the utility model adopts is: a single chip circuit, single chip circuit will be handled from the signal of external level sensor, judge the dust accumulation situation in the ash bucket, send control instruction control relay output circuit then and produce corresponding actions to control the unlatching of ash bucket unloading valve door or to close and carry out automatic ash-discharging or stop to unload ash; According to the difference of the required shaking cycle of electric cleaner diverse location cathode-anode plate, the control parameter of suitably revising in the electric cleaner microcomputer measuring and controlling instrument man-machine interface realizes the adjustment of rapping time;
Make the upper and lower material level of ash bucket be controlled in the setting range automatically and realize the relay output control circuit that the electric cleaner cathode-anode plate rapping time is adjusted thereby break-make that receives the instruction control relay that single chip circuit sends drives external contactor action;
One is connected with the keyboard input circuit that is used for being provided with functional parameter with single chip circuit, the keyboard input circuit can be revised shaking cycle, change adjustment by man-machine interface and keyboard input circuit parameter is set, and the control parameter that will adjust is kept in the memory circuitry to guarantee that next time, start was controlled by adjusted rapping parameter;
A display circuit that is connected with the single chip circuit output is to show the various control parameters of electric cleaner microcomputer measuring and controlling instrument.
The utility model connects material outside the light-coupled isolation interface circuit between level sensor and the single chip circuit, light-coupled isolation interface circuit (4) will be realized the isolation of strong and weak signals from the signal of telecommunication of level sensor, with the interference that prevents to be introduced by the outside.
The utility model also comprises an address latch circuit that is connected with the single chip circuit delivery outlet, and address latch circuit latchs the control signal of single-chip microcomputer P0 mouth output, and timesharing sends display circuit, guidance panel indicator light circuit, optical coupling isolation circuit to.
Address latch circuit output described in the utility model is connected with the real-time working state of indicating electric cleaner microcomputer measuring and controlling instrument, the guidance panel indicator light circuit of being convenient to user's observation.
Address latch circuit output described in the utility model be connected with the I/O mouth and the relay of single-chip microcomputer keep apart, realize strong and weak signals isolation, prevent the optical coupling isolation circuit of the interference introduced by the outside, optical coupling isolation circuit output relay termination output control circuit.
Single chip circuit described in the utility model is connected with the memory circuitry of depositing the whole parameters of electric cleaner microcomputer measuring and controlling instrument.
The utility model also comprises a power circuit of working power being provided for each element circuit.
The beneficial effects of the utility model are: solved the inconvenience when electric cleaner is revised shaking cycle, adjust the required shaking cycle of electric cleaner diverse location cathode-anode plate by the control parameter of setting in the microcomputer measuring and controlling instrument man-machine interface, control time is accurate, thereby need not change the adjustment that control circuit just can be realized the rapping time.Ash discharging system adopts level sensor that the electric duster ash bucket material level is detected and feeds back to electric cleaner microcomputer measuring and controlling instrument, thereby realizes the upper and lower material level of ash bucket is detected and control automatically automatically, has realized that ash bucket unloads the automation of ash.Satisfied rapping of electric cleaner low pressure and ash discharging system and realize the demand of automation under the observing and controlling of single-chip microcomputer, improved the efficiency of dust collection of electric cleaner, convenient operating maintenance, equipment cost are low.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a circuit block diagram of the present utility model.Fig. 2 is the utility model master control borad circuit theory diagrams.Fig. 3 the utility model relay board circuit theory diagrams.Fig. 4 divides schematic diagram for operation display part
Among the figure: 1. power circuit 2. single chip circuits 3. address latch circuits 4. light-coupled isolation interface circuit 5.LCD display circuits 6. guidance panel indicator light circuits 7. optical coupling isolation circuits 8. relay output control circuits 9. keyboard input circuit 10.EEPROM memory circuitries 11. buzzer output circuits
The specific embodiment
Among Fig. 1, the alternating current 220V civil power that power circuit 1 is introduced the utility model is converted to suitable working power and offers each element circuit, by external level sensor the material level signal of electric duster ash bucket is converted into the signal of telecommunication and delivers to the utility model inside, after light-coupled isolation interface circuit 4 is isolated, give single chip circuit 2 and carry out the signal processing, signal after single-chip microcomputer will be handled is exported in the address latch circuit 3 and is latched, and timesharing sends display circuit 5, guidance panel indicator light circuit 6, optical coupling isolation circuit 7 to.Display circuit 5 is the LCD display circuit, is shown the various control parameters of microcomputer measuring and controlling instrument by LCD display circuit 5.Guidance panel indicator light circuit 6 indications real-time working state of the present utility model, the duty that comprises each electric field and ash discharging system is convenient to user's observation, and optical coupling isolation circuit 7 is kept apart the I/O mouth and the relay of single-chip microcomputer 2, realize the isolation of strong and weak signals, prevent the interference of introducing by the outside.Thereby the break-make of the external contactor of relay output control circuit 8 controls realizes the automation of electric cleaner rapping and ash discharging system, keyboard input circuit 9 is used for carrying out human-computer dialogue with the utility model, the control parameter of instrument is set, thereby changes the rapping time of the cathode-anode plate of electric cleaner.Control parameter of the present utility model all is kept in the eeprom memory circuit 10, buzzer output circuit 11 provides the operation indicating sound to human-computer dialogue, automatically play a first melody when promptly starting shooting, when button is pressed, all send " dripping " one at every turn and ring, the success of expression button operation.
Among Fig. 2, used single-chip microcomputer is IC10 (AT89S52) in the single chip circuit 2, is 8 single-chip microcomputers that American ATMEL is released, and it is a control core of the present utility model.Keyboard input circuit 9 is S1-S8, touches button by 8 and forms, and be interactive input unit, rely on it to finish the setting and the preservation of parameter.External level sensor is used for detecting the state of dust in the electric duster ash bucket, in case the dust of piling up reaches the preset upper limit position, then send the signal of telecommunication and pass to single-chip microcomputer by light-coupled isolation interface circuit 4, single-chip microcomputer produces interruption immediately, the control relay output control circuit produces corresponding actions, open the unloading valve door and unload ash, unload ash when presetting the lower position, then produce immediately and interrupt, the control relay output control circuit produces corresponding actions, close the unloading valve door and stop to unload ash, realize the automation of ash bucket ash discharging system.Main element is a photoelectrical coupler in the optical coupling isolation circuit, and its model is TLP521-2.Address latch circuit 3 latchs the back time-sharing multiplex with the output signal of single-chip processor i/o mouth, export to LCD display circuit 5, guidance panel indicator light circuit 6 and optical coupling isolation circuit respectively, comprise IC11, IC12, three address latch of IC13, its model is 74HC373.LCD display circuit 5 is mainly finished parameter setting of the present utility model and human-computer dialogue; main element is that its model of IC50 is band character library 12864 LCD MODULEs; each picture can show 12 Chinese characters of the 4 every row of row; display backlight is closed in control by triode Q1 when no operation push-button is pressed in 10 minutes automatically; with the protection Liquid Crystal Module, prolong its service life.Guidance panel indicator lamp 6 mainly is made up of φ 5 light emitting diodes.Eeprom memory circuit 10, the major control chip is IC51, and its model is 24C02, and this chip adopts I
2The total line traffic control of C, 256 bytes, but power down preserved 100 years, circuit is simple, easy and simple to handle.Buzzer circuit 11 mainly provides the operation indicating sound to system, and keyboard sends " dripping " one and rings when pushing button, and main element is active buzzer, and model is HD, and triode Q2 drives buzzer to ring.Power circuit 1 main element is power module IC52; its model is YAD10-05V12; AC220V is converted to DC+5V and DC+12V uses for system; YM is a piezo-resistance; model is 621KD14, prevents lightning surge damage power module, and F1 is system's protective tube; model is 1A/250V, as short-circuit protection.
Among Fig. 3, optical coupling isolation circuit 7 main elements are photoelectrical coupler IC14-IC28, and its model is TIL113.The control that single-chip microcomputer is realized external contactor through optical coupling isolation circuit 7 control relay output control circuits 8; reach required control requirement; the major control element is little relay K O1-KO15; its model is SRD-12VDC-SL-C; wherein diode D1-D15 reversal connection is played in circuit and is eliminated the inverse electromotive force that produces when relay disconnects; the effect that protection optocoupler and elimination are disturbed, the diode model is IN4007.
It among Fig. 4 the operation display part branch.The utility model is packed in the electrical control cubicles front panel, and air switch in the cabinet that closes is pressed starting button, and the utility model is promptly started working, and its operation display part is divided as shown in the figure, and each button and explicit declaration are as follows:
A is 12864 lattice lcd display, is man-machine dialog interface of the present utility model, shows the various functional parameters that need control.
B is that functional parameter is provided with key (SET), presses the functional parameter that this key page turning need to select setting.
C is ESC Escape (ESC), presses this key and promptly is withdrawn into initial welcome interface from current page.
D is a DEC, and then the time of rapping down reduces to press this key.
E is a downturning key, presses the then downward page turning of functional parameter of this key.
F is an INC, and then the time of rapping up increases to press this key.
G for the operation key (RUN), press this key then measurement and control instrument bring into operation by blas.
H is stop key (STOP), and then measurement and control instrument is out of service to press this key.
I is a upturning key, presses the then functional parameter page turning that makes progress of this key.
J is the utility model working station indicator, and totally 16 φ 5 light emitting diodes are indicated each electric field rapping and ash discharging system state respectively, light expression and work, and extinguishes expression and quits work.
The utility model is made of shell body and circuit board.Shell body is the instrument cabinet of 145x195x65mm, adorns 1. computer control board in the casing, 2. exports control panel, 3. terminal board.Computer control board is the core of whole TT﹠C system, drives the duty that the external contactor action changes electric motor of shaker for the output control panel thereby send control instruction.
Technology of the present utility model realizes principle: be to be the microcomputer control system of core formation with single chip circuit 2, it has adopted the AT89S52 single-chip microcomputer that is most widely used at home of American ATMEL release as the control core, but has on-line system programming ISP function, adopt spi bus mode and peripheral communication, realized hardware optimizations.By external level sensor the material level signal of electric duster ash bucket is converted into the signal of telecommunication and delivers to the utility model inside, after light-coupled isolation interface circuit 4 is isolated, give single-chip microcomputer and carry out the signal processing, after the dust in the ash bucket is stacked into setting height, single-chip microcomputer promptly sends control instruction control ash bucket unloading valve door and opens the beginning automatic ash-discharging, unload ash single-chip microcomputer behind the desired location and send control instruction again and close the unloading valve door and stop to unload ash, so just realized that ash bucket unloads grey automation mechanized operation.The utility model adopts 12864 liquid crystal commonly used as man-machine interface, full menu in Chinese operation, and every picture can show 4 row, 12 row Chinese characters, all control parameters are all adjusted by human-computer dialogue.The shaking cycle that electric cleaner is adjusted cathode-anode plate is to realize by the control parameter of revising in the utility model, utilize the timing interrupt function in the single-chip microcomputer to realize start stop operation by peripheral interface circuit to electric motor of shaker by program, the required rapping time is by in the program one-time write eeprom memory circuit 10, default timing to after then send control instruction and realize start stop operation electric motor of shaker by peripheral interface circuit by single-chip microcomputer.Revise shaking cycle as need and then parameter adjustment is set, and the control parameter that will adjust is kept among the EEPROM to guarantee that next time, start was controlled by adjusted rapping parameter by man-machine interface and 9 changes of keyboard input circuit.
Claims (7)
1, a kind of electric cleaner microcomputer measuring and controlling instrument, it is characterized in that: comprise a single chip circuit (2), single chip circuit (2) will be handled from the signal of external level sensor, judge the dust accumulation situation in the ash bucket, send control instruction control relay output circuit then and produce corresponding actions to control the unlatching of ash bucket unloading valve door or to close and carry out automatic ash-discharging or stop to unload ash; The different control parameters of suitably revising in the electric cleaner microcomputer measuring and controlling instrument man-machine interface according to the required shaking cycle of electric cleaner diverse location cathode-anode plate realize the adjustment of rapping time;
One receive single chip circuit (2) thus the break-make of the instruction control relay that sends drives external contactor action to be made the upper and lower material level of ash bucket be controlled in the setting range automatically and realizes the relay output control circuit (8) that the electric cleaner cathode-anode plate rapping time is adjusted;
One is connected with the keyboard input circuit (9) that is used for being provided with functional parameter with single chip circuit (2), keyboard input circuit (9) can be revised shaking cycle, change adjustment by man-machine interface and keyboard input circuit (9) parameter is set, and the control parameter that will adjust is kept in the memory circuitry (10) to guarantee that next time, start was controlled by adjusted rapping parameter;
A display circuit (5) that is connected with single chip circuit (2) output is to show the various control parameters of electric cleaner microcomputer measuring and controlling instrument.
2, electric cleaner microcomputer measuring and controlling instrument according to claim 1, it is characterized in that: connecting material outside has light-coupled isolation interface circuit (4) between level sensor and the single chip circuit (2), light-coupled isolation interface circuit (4) will be realized the isolation of strong and weak signals from the signal of telecommunication of level sensor, with the interference that prevents to be introduced by the outside.
3, electric cleaner microcomputer measuring and controlling instrument according to claim 1, it is characterized in that: also comprise an address latch circuit (3) that is connected with single chip circuit (2) delivery outlet, address latch circuit (3) latchs the control signal of single-chip microcomputer P0 mouth output, and timesharing sends display circuit (5), guidance panel indicator light circuit (6), optical coupling isolation circuit (7) to.
4, electric cleaner microcomputer measuring and controlling instrument according to claim 3 is characterized in that: address latch circuit (3) output is connected with the real-time working state of indicating electric cleaner microcomputer measuring and controlling instrument, the guidance panel indicator light circuit (6) of being convenient to user's observation.
5, electric cleaner microcomputer measuring and controlling instrument according to claim 3, it is characterized in that: described address latch circuit (3) output be connected with the I/O mouth and the relay of single-chip microcomputer keep apart, realize strong and weak signals isolation, prevent the optical coupling isolation circuit (7) of the interference introduced by the outside, optical coupling isolation circuit (7) output relay termination output control circuit (8).
6, electric cleaner microcomputer measuring and controlling instrument according to claim 1 is characterized in that: described single chip circuit (2) is connected with the eeprom memory circuit (10) of depositing the whole parameters of electric cleaner microcomputer measuring and controlling instrument.
7, electric cleaner microcomputer measuring and controlling instrument according to claim 1 is characterized in that: also comprise a power circuit (1) of working power being provided for each element circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201911026U CN201275503Y (en) | 2008-09-27 | 2008-09-27 | Microcomputer observing and controlling instrument of electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201911026U CN201275503Y (en) | 2008-09-27 | 2008-09-27 | Microcomputer observing and controlling instrument of electrostatic precipitator |
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| Publication Number | Publication Date |
|---|---|
| CN201275503Y true CN201275503Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201911026U Expired - Fee Related CN201275503Y (en) | 2008-09-27 | 2008-09-27 | Microcomputer observing and controlling instrument of electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201275503Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825018A (en) * | 2012-09-12 | 2012-12-19 | 高波 | Automatic dust removal device of high-temperature probe |
| CN103691560A (en) * | 2013-12-26 | 2014-04-02 | 中冶长天国际工程有限责任公司 | Method and system for detecting ash-discharging period of multi-electric field dust remover of sintering system |
| CN103691555A (en) * | 2013-12-26 | 2014-04-02 | 中冶长天国际工程有限责任公司 | Ash-discharging control method and system for multi-electric field dust remover of sintering system |
| CN104268306A (en) * | 2014-08-04 | 2015-01-07 | 福建龙净环保股份有限公司 | Dust cake structural characteristic extracting method and dust cake structural characteristic extracting device |
-
2008
- 2008-09-27 CN CNU2008201911026U patent/CN201275503Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825018A (en) * | 2012-09-12 | 2012-12-19 | 高波 | Automatic dust removal device of high-temperature probe |
| CN102825018B (en) * | 2012-09-12 | 2015-01-07 | 高波 | Automatic dust removal device of high-temperature probe |
| CN103691560A (en) * | 2013-12-26 | 2014-04-02 | 中冶长天国际工程有限责任公司 | Method and system for detecting ash-discharging period of multi-electric field dust remover of sintering system |
| CN103691555A (en) * | 2013-12-26 | 2014-04-02 | 中冶长天国际工程有限责任公司 | Ash-discharging control method and system for multi-electric field dust remover of sintering system |
| CN103691560B (en) * | 2013-12-26 | 2016-01-06 | 中冶长天国际工程有限责任公司 | The many electric-field dust collectors of sintering system unload detection method and the system in ash cycle |
| CN103691555B (en) * | 2013-12-26 | 2016-01-06 | 中冶长天国际工程有限责任公司 | The many electric-field dust collectors of sintering system unload grey control method and system |
| CN104268306A (en) * | 2014-08-04 | 2015-01-07 | 福建龙净环保股份有限公司 | Dust cake structural characteristic extracting method and dust cake structural characteristic extracting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20160927 |