CN205939227U - Intelligent flame detection device - Google Patents
Intelligent flame detection device Download PDFInfo
- Publication number
- CN205939227U CN205939227U CN201620903060.9U CN201620903060U CN205939227U CN 205939227 U CN205939227 U CN 205939227U CN 201620903060 U CN201620903060 U CN 201620903060U CN 205939227 U CN205939227 U CN 205939227U
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- master controller
- signal output
- detection signal
- switching value
- main control
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Abstract
The utility model provides an intelligent flame detection device, relates to combustor technical field, and that solve is decreasing failure rate and manufacturing cost's technical problem. The device includes main control unit, auxiliary controller, silicon photodiode, has fiery switching value interface member, fireless switching value interface member, analog quantity interface member, main control unit and auxiliary controller pass through SPI adaptor interaction, and the auxiliary controller 1 mouth is examined through the fire that a logarithmic amplifier, a current -voltage conversion module, a filter circuit, an adc received main control unit and auxiliary controller in proper order to silicon photodiode's positive pole, analog quantity interface member is received through an optoelectronic isolation ware, a digital analog converter in proper order to main control unit's first detection signal output part mouth, and main control unit's second detects a signal output part antilinear relay and has received fiery switching value interface member, and main control unit's third detects a signal output part antilinear relay and receives fireless switching value interface member. The device provided by the utility model, the flame that is suitable for the combustor detects.
Description
Technical field
This utility model is related to Burner Technology, the technology of more particularly to a kind of intelligent flame detecting device.
Background technology
Power station and Industrial Boiler, in single flame or many flame combustions, will carry out the prison of high security to combustion flame
Survey, when fray-out of flame, the control of " fray-out of flame " will execute at once.
Flame detection equipment is heat power plant boiler Furnace Safeguard Supervisory System（FSSS）In key equipment, its work
With through the overall process from boiler startup to oepration at full load, for judging in full burner hearth or the building of unit burner flame
Stand/extinguish or have fiery and no fiery, when there is all flames lost or unit burner stops working, flame detection equipment contact is accurately moved
Send warning, rely on FSSS system chain function, stop corresponding machine supplying powder, coal pulverizer, fuel oil main valve or primary air fan etc.
Run, prevent accumulation fuel in burner hearth, abnormal conditions are ignited causing the generation of bursting of boilers serious accident, therefore equipment performance
I.e. equipment reliability of operation and the accuracy detecting are directly connected to the operation safety and stablization of unit.
Usual burner is equipped with a road flame monitor at present, there is Single Point of Faliure it may occur that due to fiery error detection by mistake
Cause the major accident of boiler shutdown；The increase of cost, the answering of heat power engineering system can be caused if equipped with multiple flame monitors again
Polygamy increases, the increase of maintenance and management difficulty.
Content of the invention
For defect present in above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of event
Barrier rate is low, and intelligent flame detecting device cheap for manufacturing cost.
In order to solve above-mentioned technical problem, a kind of intelligent flame detecting device provided by the utility model, its feature
It is：Including master controller, submaster controller, silicon photoelectric diode, logafier, current/voltage modular converter, filter circuit,
Analog-digital converter, photoisolator, digital to analog converter, there are fiery switching value mouthpiece, no fiery switching value mouthpiece, analog quantity interface
Part；
Described master controller and submaster controller are interconnected by spi bus, and master controller, submaster controller are designed with fire inspection signal
Collection port, it is defeated that master controller is provided with first detection signal output port, the second detection signal output port, the 3rd detection signal
Exit port；
The minus earth of described silicon photoelectric diode, the anode of silicon photoelectric diode is successively through logafier, electric current electricity
Pressure modular converter, filter circuit, analog-digital converter are connected to the fire inspection signals collecting port of master controller and submaster controller；
The first detection signal output port of described master controller is connected to simulation through photoisolator, digital to analog converter successively
Amount mouthpiece, the second detection signal output port of master controller has been connected to fiery switching value mouthpiece, main control through a relay
3rd detection signal output port of device is connected to no fiery switching value mouthpiece through a relay.
The intelligent flame detecting device that this utility model provides, gathers flare up fire using silicon photoelectric diode, and adopts
Ensure that stablizing of flare up fire with logarithmic amplifier mode, and can mutually detect between master controller and submaster controller, energy
Guarantee to obtain correct testing result, have the characteristics that fault rate is low, and manufacturing cost is relatively low.
Brief description
Fig. 1 is the structural representation of the intelligent flame detecting device of this utility model embodiment.
Specific embodiment
Below in conjunction with brief description, embodiment of the present utility model is described in further detail, but the present embodiment and without
In limiting this utility model, every using analog structure of the present utility model and its similar change, this utility model all should be listed in
Protection domain, the pause mark in this utility model all represents the relation of sum.
As shown in figure 1, a kind of intelligent flame detecting device that provided of this utility model embodiment it is characterised in that：
Including master controller U1, submaster controller U2, silicon photoelectric diode D1, logafier A1, current/voltage modular converter U3, filtering
Circuit U 4, analog-digital converter U5, photoisolator U6, digital to analog converter U7, fiery switching value mouthpiece T2, no fiery switching value is had to connect
Mouth part T3, analog quantity mouthpiece T1；
Described master controller U1 and submaster controller U2 is interconnected by spi bus, and master controller U1, submaster controller U2 are designed with
Fire inspection signals collecting port, master controller U1 be provided with first detection signal output port, the second detection signal output port, the 3rd
Detection signal output port；
The minus earth of described silicon photoelectric diode D1, the anode of silicon photoelectric diode D1 successively through logafier A1,
Current/voltage modular converter U3, filter circuit U4, analog-digital converter U5 are connected to the fire inspection letter of master controller U1 and submaster controller U2
Number collection port；
The first detection signal output port of described master controller U1 connects through photoisolator U6, digital to analog converter U7 successively
To analog quantity mouthpiece T1, the second detection signal output port of master controller U1 has been connected to fiery switching value through a relay J1 and has connect
The 3rd detection signal output port of mouth part T2, master controller U1 is connected to no fiery switching value mouthpiece T3 through a relay J2.
The operation principle of this utility model embodiment is as follows：
Silicon photoelectric diode is placed in the initial combustion area periphery of burner, when burner produces flame, flame is sent out
The light going out is irradiated to silicon photoelectric diode, converts optical signals to the signal of telecommunication by silicon photoelectric diode, the intensity of the signal of telecommunication with
The light intensity that flame sends is directly proportional, and the signal of telecommunication that silicon photoelectric diode produces is changed into stable after logafier amplification
The current signal of 0～2mA, ensures the linear gain relation of flame brightness and signal intensity using logarithmic amplifier mode, prevents again
Stop the generation of current signal saturation, the current signal of logafier output is first converted to voltage by current/voltage modular converter
Signal, more filtered circuit is filtered processing, and is then converted to after digital signal input master controller by analog-digital converter again
And submaster controller；
Master controller and submaster controller detect to the digital signal from analog-digital converter respectively, detect this numeral
The intensity of signal and frequency, the intensity of this digital signal represents the brightness of flame, and the frequency of this digital signal then represents flame
Pulsation or flicker frequency；When the intensity instantaneous value detecting and frequency instantaneous value are above intensity threshold set in advance and frequency
During threshold value, master controller has fiery on-off model from the second detection signal output port output, otherwise then master controller is from the 3rd
The no fiery on-off model of detection signal output port output；Carried out using SPI communication agreement between master controller and submaster controller
Communication, mutually detects between the two, makes plant running relatively reliable.
Claims (1)
1. a kind of intelligent flame detecting device it is characterised in that：Including master controller, submaster controller, silicon photoelectric diode, right
Count amplifier, current/voltage modular converter, filter circuit, analog-digital converter, photoisolator, digital to analog converter, have fire switch
Amount mouthpiece, no fiery switching value mouthpiece, analog quantity mouthpiece；
Described master controller and submaster controller are interconnected by spi bus, and master controller, submaster controller are designed with fire inspection signals collecting
Port, master controller is provided with first detection signal output port, the second detection signal output port, the 3rd detection signal outfan
Mouthful；
The minus earth of described silicon photoelectric diode, the anode of silicon photoelectric diode turns through logafier, current/voltage successively
Die change block, filter circuit, analog-digital converter are connected to the fire inspection signals collecting port of master controller and submaster controller；
The first detection signal output port of described master controller is connected to analog quantity and connects through photoisolator, digital to analog converter successively
Mouth part, the second detection signal output port of master controller has been connected to fiery switching value mouthpiece through a relay, master controller
3rd detection signal output port is connected to no fiery switching value mouthpiece through a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620903060.9U CN205939227U (en) | 2016-08-19 | 2016-08-19 | Intelligent flame detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620903060.9U CN205939227U (en) | 2016-08-19 | 2016-08-19 | Intelligent flame detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205939227U true CN205939227U (en) | 2017-02-08 |
Family
ID=57947114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620903060.9U Expired - Fee Related CN205939227U (en) | 2016-08-19 | 2016-08-19 | Intelligent flame detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205939227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090995A (en) * | 2016-08-19 | 2016-11-09 | 上海汉人科技有限公司 | A kind of intelligent flame detecting device |
| CN117623588A (en) * | 2023-11-30 | 2024-03-01 | 蚌埠凯盛工程技术有限公司 | Melting furnace combustion optimizing system and device |
-
2016
- 2016-08-19 CN CN201620903060.9U patent/CN205939227U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090995A (en) * | 2016-08-19 | 2016-11-09 | 上海汉人科技有限公司 | A kind of intelligent flame detecting device |
| CN117623588A (en) * | 2023-11-30 | 2024-03-01 | 蚌埠凯盛工程技术有限公司 | Melting furnace combustion optimizing system and 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 |
Granted publication date: 20170208 Termination date: 20180819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |