CN204513333U - A kind of coal powder boiler combustion state on_line monitoring device - Google Patents
A kind of coal powder boiler combustion state on_line monitoring device Download PDFInfo
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- CN204513333U CN204513333U CN201520045677.7U CN201520045677U CN204513333U CN 204513333 U CN204513333 U CN 204513333U CN 201520045677 U CN201520045677 U CN 201520045677U CN 204513333 U CN204513333 U CN 204513333U
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Abstract
A kind of coal powder boiler combustion state on_line monitoring device, relate to measuring instrument instrument, LCD display is equipped with in a side of monitoring device shell, working station indicator, fault alarm indicator lamp, communication failure indicator lamp, usb communication socket, start button, stop key, test button, drum operating pressure instrument signal input terminal, furnace pressure instrument signal input terminal, exhaust gas temperature instrument signal input terminal, coal dust thermometric instrument signal input terminal, hot blast temperature instrument signal input terminal, feed temperature instrument signal input terminal, First air wind speed instrument signal input terminal, oxygen content in exhaust gas instrument signal input terminal, main steam flow instrument signal input terminal, flare up fire instrument signal input terminal, air blower inlet thermometric instrument signal input terminal, this device can on-line real time monitoring coal powder boiler combustion state parameter, and when breaking down can and alarm, to ensure that coal powder boiler combustion carries out safely and steadly.
Description
Technical field
The utility model relates to a kind of measuring instrument instrument, particularly relates to a kind of coal powder boiler combustion state on_line monitoring device.
Background technology
The combustion heat-exchange process of pulverized-coal fired boiler is a complicated process, and because burning coal is changeable, coal powder ignition is difficult, the burning of pulverized-coal fired boiler also exists instability, easily causes the problems such as fire extinguishing.In order to ensure coal powder boiler combustion safe and stable operation, be necessary to carry out on-line monitoring to the relevant parameter in coal powder boiler combustion process.At present, the security and stability of the most coal powder boiler combustion of China all judges with the experience of operations staff, truly can not reflect the combustion case of boiler.Therefore, design and a kind ofly the monitoring device of on-line real time monitoring coal powder boiler combustion state parameter not only can improve the automatization level of pulverized-coal fired boiler monitoring, and for the safe operation of guarantee pulverized-coal fired boiler, there is very important practical significance.
Summary of the invention
The purpose of this utility model is to provide a kind of coal powder boiler combustion state on_line monitoring device, this device can on-line real time monitoring coal powder boiler combustion state parameter, and when breaking down can and alarm, to ensure that coal powder boiler combustion carries out safely and steadly.
The purpose of this utility model is achieved through the following technical solutions:
A kind of coal powder boiler combustion state on_line monitoring device, comprises monitoring device shell and observation circuit.LCD display is equipped with in a side of monitoring device shell, working station indicator, fault alarm indicator lamp, communication failure indicator lamp, usb communication socket, start button, stop key, test button, drum operating pressure instrument signal input terminal, furnace pressure instrument signal input terminal, exhaust gas temperature instrument signal input terminal, coal dust thermometric instrument signal input terminal, hot blast temperature instrument signal input terminal, feed temperature instrument signal input terminal, First air wind speed instrument signal input terminal, oxygen content in exhaust gas instrument signal input terminal, main steam flow instrument signal input terminal, flare up fire instrument signal input terminal, air blower inlet thermometric instrument signal input terminal, First air blast instrument signal input terminal, First air wind-warm syndrome instrument signal input terminal.Observation circuit in monitoring device shell is amplified and isolation module and PLC(programmable logic controller (PLC) by signal) system module forms.Described PLC system module comprises: Siemens S7-300 series of PLC CPU(CPU) 312 modules, power module, Analog input mModule, digital quantity input module, digital output module, memory module, communication module, display module.
Drum operating pressure instrument signal input terminal, furnace pressure instrument signal input terminal, exhaust gas temperature instrument signal input terminal, coal dust thermometric instrument signal input terminal, hot blast temperature instrument signal input terminal, feed temperature instrument signal input terminal, First air wind speed instrument signal input terminal, oxygen content in exhaust gas instrument signal input terminal, main steam flow instrument signal input terminal, flare up fire instrument signal input terminal, air blower inlet thermometric instrument signal input terminal, First air blast instrument signal input terminal, First air wind-warm syndrome instrument signal input terminal respectively with outside drum operating pressure measuring instrument, furnace pressure measuring instrument, exhaust gas temperature measuring instrument, coal dust temperature measuring instrument, hot blast temperature measuring instrument, feed temperature measuring instrument, First air measuring wind speed instrument, oxygen content in exhaust gas measuring instrument, main steam flow measuring instrument, flare up fire measuring instrument, air blower inlet temperature measuring instrument, First air wind pressure measurement instrument, First air wind-warm syndrome measuring instrument is connected, the drum operating pressure signal collected by described measuring instrument respectively, furnace pressure signal, exhaust gas temperature signal, coal dust temperature signal, hot blast temperature signal, feed temperature signal, First air wind velocity signal, oxygen content in exhaust gas signal, main steam flow signal, flare up fire signal, air blower inlet temperature signal, First air wind pressure signal, First air wind-warm syndrome signal is sent into signal by holding wire and is amplified and isolation module, described signal amplification is connected with Analog input mModule by holding wire with isolation module, startup button on monitoring device shell, stop key and test button and be connected with digital quantity input module respectively by holding wire, working station indicator on monitoring device shell, fault alarm indicator lamp, communication failure indicator lamp are connected with digital output module respectively by holding wire, described display module is connected with the LCD display on monitoring device shell by holding wire.The Analog input mModule of monitoring device inside, digital quantity input module, digital output module, communication module, memory module are connected with S7-300 CPU312 module respectively by bus with display module; The power module of monitoring device inside is connected by power line with display module with Analog input mModule, digital quantity input module, digital output module, communication module, memory module respectively; Described communication module can be communicated with outer computer by the communication jacks on monitoring device shell.
Operation principle of the present utility model is as follows:
Drum operating pressure instrument signal input terminal, furnace pressure instrument signal input terminal, exhaust gas temperature instrument signal input terminal, coal dust thermometric instrument signal input terminal, hot blast temperature instrument signal input terminal, feed temperature instrument signal input terminal, First air wind speed instrument signal input terminal, oxygen content in exhaust gas instrument signal input terminal, main steam flow instrument signal input terminal, flare up fire instrument signal input terminal, air blower inlet thermometric instrument signal input terminal, First air blast instrument signal input terminal, First air wind-warm syndrome instrument signal input terminal is respectively by outside drum operating pressure measuring instrument, furnace pressure measuring instrument, exhaust gas temperature measuring instrument, coal dust temperature measuring instrument, hot blast temperature measuring instrument, feed temperature measuring instrument, First air measuring wind speed instrument, oxygen content in exhaust gas measuring instrument, main steam flow measuring instrument, flare up fire measuring instrument, air blower inlet temperature measuring instrument, First air wind pressure measurement instrument, the drum operating pressure signal that First air wind-warm syndrome measuring instrument collects, furnace pressure signal, exhaust gas temperature signal, coal dust temperature signal, hot blast temperature signal, feed temperature signal, First air wind velocity signal, oxygen content in exhaust gas signal, main steam flow signal, flare up fire signal, air blower inlet temperature signal, First air wind pressure signal, First air wind-warm syndrome signal amplifies through signal and carries out signal amplification with isolation module, light/electric isolution process.Described drum operating pressure signal after signal amplification with isolation processing, furnace pressure signal, exhaust gas temperature signal, coal dust temperature signal, hot blast temperature signal, feed temperature signal, First air wind velocity signal, oxygen content in exhaust gas signal, main steam flow signal, flare up fire signal, air blower inlet temperature signal, First air wind pressure signal, First air wind-warm syndrome signal send Analog input mModule to carry out analog-to-digital conversion respectively, the drum operating pressure data obtained after conversion, furnace pressure data, exhaust gas temperature data, coal dust temperature data, hot blast temperature data, feed temperature data, First air air speed data, oxygen content in exhaust gas data, main steam flow data, flare up fire data, air blower inlet temperature data, First air wind pressure data, First air wind-warm syndrome data are sent into S7-300 CPU312 module through bus and are carried out analyzing and processing, obtain coal powder boiler combustion status data.Coal powder boiler combustion status data send outside memory module storage by S7-300 CPU312 module, is also shown on LCD display by display module.Communication module in monitoring device shell can be connected with outer computer by the usb communication socket on monitoring device shell, realizes the communication of this monitoring device and outer computer.Startup button on monitoring device shell, stop key and test button and be connected by the digital quantity input module of holding wire with monitoring device inside, described digital quantity input module receives startup button, stops key and test the key information of button and by bus, described key information be sent to S7-300 CPU312 module, realizes the startup of monitoring device, stopping and test.Described digital output module is connected with working station indicator, fault alarm indicator lamp, communication failure indicator lamp by holding wire.When monitoring device operation irregularity, S7-300 CPU312 module can, by digital output module output signal to working station indicator, make working station indicator light, the current monitoring device operation irregularity of prompting operator; When boiler operating state data exceeds normal value, S7-300 CPU312 module can, by digital output module output signal to fault alarm indicator lamp, make fault alarm indicator lamp light, and prompting operator current compressor operational data is abnormal; When S7-300 CPU312 is by USB and outer computer communication failure, S7-300 CPU312 module can by digital output module output signal to communication failure indicator lamp, communication failure indicator lamp is lighted, and prompting operator present communications breaks down.
Advantage of the present utility model and effect are:
Owing to adopting S7-300 CPU312 module as the core component of observation circuit, this monitoring device not only can the on-the-spot drum operating pressure signal of Real-time Collection, furnace pressure signal, exhaust gas temperature signal, coal dust temperature signal, hot blast temperature signal, feed temperature signal, First air wind velocity signal, oxygen content in exhaust gas signal, main steam flow signal, flare up fire signal, air blower inlet temperature signal, First air wind pressure signal, First air wind-warm syndrome signal carry out calculating, analyzing pulverized-coal fired boiler present combustion state, and antijamming capability is comparatively strong, stability is better.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of coal powder boiler combustion state on_line monitoring device;
Fig. 2 is a kind of circuit block diagram of coal powder boiler combustion state on_line monitoring device.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in detail.
label declaration in Fig. 1: 1, monitoring device shell, 2, LCD display, 3, working station indicator, 4, fault alarm indicator lamp, 5, communication failure indicator lamp, 6, usb communication socket, 7, start button, 8, stop key, 9, test button, 10, drum operating pressure instrument signal input terminal, 11, furnace pressure instrument signal input terminal, 12, exhaust gas temperature instrument signal input terminal, 13, coal dust thermometric instrument signal input terminal, 14, hot blast temperature instrument signal input terminal, 15, feed temperature instrument signal input terminal, 16, First air wind speed instrument signal input terminal, 17, oxygen content in exhaust gas instrument signal input terminal, 18, main steam flow instrument signal input terminal, 19, flare up fire instrument signal input terminal, 20, air blower inlet thermometric instrument signal input terminal, 21, First air blast instrument signal input terminal, 22, First air wind-warm syndrome instrument signal input terminal.
See Fig. 1, the utility model comprises: monitoring device shell 1, LCD display 2, working station indicator 3, fault alarm indicator lamp 4, communication failure indicator lamp 5, usb communication socket 6, start button 7, stop key 8, test button 9, drum operating pressure instrument signal input terminal 10, furnace pressure instrument signal input terminal 11, exhaust gas temperature instrument signal input terminal 12, coal dust thermometric instrument signal input terminal 13, hot blast temperature instrument signal input terminal 14, feed temperature instrument signal input terminal 15, First air wind speed instrument signal input terminal 16, oxygen content in exhaust gas instrument signal input terminal 17, main steam flow instrument signal input terminal 18, flare up fire instrument signal input terminal 19, air blower inlet thermometric instrument signal input terminal 20, First air blast instrument signal input terminal 21, First air wind-warm syndrome instrument signal input terminal 22.
See Fig. 2, the measuring circuit in the utility model measurement mechanism shell comprises: signal amplifies and isolation module and PLC system module.Described PLC system module comprises: S7-300 CPU312 module, power module, Analog input mModule, digital quantity input module, digital output module, memory module, communication module, display module.
Drum operating pressure instrument signal input terminal 10, furnace pressure instrument signal input terminal 11, exhaust gas temperature instrument signal input terminal 12, coal dust thermometric instrument signal input terminal 13, hot blast temperature instrument signal input terminal 14, feed temperature instrument signal input terminal 15, First air wind speed instrument signal input terminal 16, oxygen content in exhaust gas instrument signal input terminal 17, main steam flow instrument signal input terminal 18, flare up fire instrument signal input terminal 19, air blower inlet thermometric instrument signal input terminal 20, First air blast instrument signal input terminal 21, First air wind-warm syndrome instrument signal input terminal 22 is respectively by drum operating pressure measuring instrument, furnace pressure measuring instrument, exhaust gas temperature measuring instrument, coal dust temperature measuring instrument, hot blast temperature measuring instrument, feed temperature measuring instrument, First air measuring wind speed instrument, oxygen content in exhaust gas measuring instrument, main steam flow measuring instrument, flare up fire measuring instrument, air blower inlet temperature measuring instrument, First air wind pressure measurement instrument, the drum operating pressure signal that First air wind-warm syndrome measuring instrument collects, furnace pressure signal, exhaust gas temperature signal, coal dust temperature signal, hot blast temperature signal, feed temperature signal, First air wind velocity signal, oxygen content in exhaust gas signal, main steam flow signal, flare up fire signal, air blower inlet temperature signal, First air wind pressure signal, First air wind-warm syndrome signal amplifies through signal and carries out signal amplification with isolation module, light/electric isolution process.Described drum operating pressure signal after signal amplification with isolation processing, furnace pressure signal, exhaust gas temperature signal, coal dust temperature signal, hot blast temperature signal, feed temperature signal, First air wind velocity signal, oxygen content in exhaust gas signal, main steam flow signal, flare up fire signal, air blower inlet temperature signal, First air wind pressure signal, First air wind-warm syndrome signal send Analog input mModule to carry out analog-to-digital conversion respectively, the drum operating pressure data obtained after conversion, furnace pressure data, exhaust gas temperature data, coal dust temperature data, hot blast temperature data, feed temperature data, First air air speed data, oxygen content in exhaust gas data, main steam flow data, flare up fire data, air blower inlet temperature data, First air wind pressure data, First air wind-warm syndrome data are sent into S7-300 CPU312 through bus and are carried out analyzing and processing, obtain coal powder boiler combustion status data.Coal powder boiler combustion state is sent outside memory module storage by S7-300 CPU312, is also shown on LCD display 2 by display module.Communication module can be connected with outer computer by the usb communication socket 6 on monitoring device shell 1, realizes the communication of this monitoring device and outer computer.Startup button 7 on monitoring device shell 1, stop key 8, test button 9 is connected with the digital quantity input module of monitoring device inside respectively by holding wire, described digital quantity input module receive start button 7, stop key 8, the information of test button 9 and by bus by described startup button 7, stop key 8, the information of test button 9 is sent to S7-300 CPU312, realizes the startup of monitoring device, stopping and test.Described digital output module is connected with working station indicator 3, fault alarm indicator lamp 4, communication failure indicator lamp 5 by holding wire.When monitoring device operation irregularity, S7-300 CPU312 module can, by digital output module output signal to working station indicator 3, make working station indicator 3 light, the current monitoring device operation irregularity of prompting operator; When boiler operating state data exceeds normal value, S7-300 CPU312 module can, by digital output module output signal to fault alarm indicator lamp 4, make fault alarm indicator lamp 4 light, and prompting operator current compressor operational data is abnormal; When S7-300 CPU312 is by USB 6 and outer computer communication failure, S7-300 CPU312 module can by digital output module output signal to communication failure indicator lamp 5, communication failure indicator lamp 5 is lighted, and prompting operator present communications breaks down.
Claims (6)
1. a coal powder boiler combustion state on_line monitoring device, is characterized in that, described device comprises monitoring device shell and observation circuit, LCD display is equipped with in a side of monitoring device shell, working station indicator, fault alarm indicator lamp, communication failure indicator lamp, usb communication socket, start button, stop key, test button, drum operating pressure instrument signal input terminal, furnace pressure instrument signal input terminal, exhaust gas temperature instrument signal input terminal, coal dust thermometric instrument signal input terminal, hot blast temperature instrument signal input terminal, feed temperature instrument signal input terminal, First air wind speed instrument signal input terminal, oxygen content in exhaust gas instrument signal input terminal, main steam flow instrument signal input terminal, flare up fire instrument signal input terminal, air blower inlet thermometric instrument signal input terminal, First air blast instrument signal input terminal, First air wind-warm syndrome instrument signal input terminal, observation circuit in monitoring device shell is made up of with isolation module and PLC system module signal amplification, PLC system module comprises: Siemens S7-300 series of PLC CPU module, power module, Analog input mModule, digital quantity input module, digital output module, memory module, communication module, display module.
2. a kind of coal powder boiler combustion state on_line monitoring device according to claim 1, is characterized in that, described drum operating pressure instrument signal input terminal, furnace pressure instrument signal input terminal, exhaust gas temperature instrument signal input terminal, coal dust thermometric instrument signal input terminal, hot blast temperature instrument signal input terminal, feed temperature instrument signal input terminal, First air wind speed instrument signal input terminal, oxygen content in exhaust gas instrument signal input terminal, main steam flow instrument signal input terminal, flare up fire instrument signal input terminal, air blower inlet thermometric instrument signal input terminal, First air blast instrument signal input terminal, First air wind-warm syndrome instrument signal input terminal respectively with outside drum operating pressure measuring instrument, furnace pressure measuring instrument, exhaust gas temperature measuring instrument, coal dust temperature measuring instrument, hot blast temperature measuring instrument, feed temperature measuring instrument, First air measuring wind speed instrument, oxygen content in exhaust gas measuring instrument, main steam flow measuring instrument, flare up fire measuring instrument, air blower inlet temperature measuring instrument, First air wind pressure measurement instrument, First air wind-warm syndrome measuring instrument is connected.
3. a kind of coal powder boiler combustion state on_line monitoring device according to claim 1, is characterized in that, described signal amplification is connected with Analog input mModule by holding wire with isolation module; Startup button on monitoring device shell, stop key and test button and be connected with digital quantity input module respectively by holding wire.
4. a kind of coal powder boiler combustion state on_line monitoring device according to claim 1, it is characterized in that, the working station indicator on described monitoring device shell, fault alarm indicator lamp, communication failure indicator lamp are connected with digital output module respectively by holding wire; Display module is connected with the LCD display on monitoring device shell by holding wire.
5. a kind of coal powder boiler combustion state on_line monitoring device according to claim 1, it is characterized in that, the Analog input mModule of described monitoring device inside, digital quantity input module, digital output module, communication module, memory module are connected with S7-300 CPU312 module respectively by bus with display module.
6. a kind of coal powder boiler combustion state on_line monitoring device according to claim 1, it is characterized in that, the power module of described monitoring device inside is connected by power line with display module with Analog input mModule, digital quantity input module, digital output module, communication module, memory module respectively; Described communication module can be communicated with outer computer by the communication jacks on monitoring device shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520045677.7U CN204513333U (en) | 2015-01-23 | 2015-01-23 | A kind of coal powder boiler combustion state on_line monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520045677.7U CN204513333U (en) | 2015-01-23 | 2015-01-23 | A kind of coal powder boiler combustion state on_line monitoring device |
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| CN204513333U true CN204513333U (en) | 2015-07-29 |
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| CN201520045677.7U Expired - Fee Related CN204513333U (en) | 2015-01-23 | 2015-01-23 | A kind of coal powder boiler combustion state on_line monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546704A (en) * | 2016-12-09 | 2017-03-29 | 华北电力大学（保定） | A kind of nitrogen oxides hard measurement device of compressed sensing and its measuring method |
-
2015
- 2015-01-23 CN CN201520045677.7U patent/CN204513333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546704A (en) * | 2016-12-09 | 2017-03-29 | 华北电力大学（保定） | A kind of nitrogen oxides hard measurement device of compressed sensing and its measuring method |
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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: 20150729 Termination date: 20160123 |
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| EXPY | Termination of patent right or utility model |