CN107509050A - Gasifier flame detecting system - Google Patents
Gasifier flame detecting system Download PDFInfo
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- CN107509050A CN107509050A CN201710685717.8A CN201710685717A CN107509050A CN 107509050 A CN107509050 A CN 107509050A CN 201710685717 A CN201710685717 A CN 201710685717A CN 107509050 A CN107509050 A CN 107509050A
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- 238000002309 gasification Methods 0.000 claims abstract description 82
- 238000012545 processing Methods 0.000 claims abstract description 56
- 239000000523 sample Substances 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000007323 disproportionation reaction Methods 0.000 claims description 21
- 239000000446 fuel Substances 0.000 claims description 21
- 238000003384 imaging method Methods 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000000205 computational method Methods 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 239000003245 coal Substances 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010219 correlation analysis Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007706 flame test Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
Abstract
The invention provides a gasifier flame detection system, belongs to the technical field of coal gasification, and is used for solving the problems that the existing gasifier flame detection is unstable and lacks accurate and rapid switching value. The gasifier flame detection system includes: the image probe is arranged at a central pipe opening of the gasification burner outside the gasification furnace body, the outer part of the image probe is an explosion-proof pressure-resistant shell, and the image probe is used for collecting a flame video signal at the central pipe opening of the gasification burner; the data processing unit is arranged in the cabinet, a video input end of the data processing unit is connected with a video output end of the image probe through a coaxial cable, and the data processing unit is used for judging whether the gasification burner detected by the image probe has flame or not according to the flame video signal collected by the image probe. The gasification furnace flame detection system can stably, reliably and delay-free monitor the combustion condition of the flame in the furnace, output the switching value of the flame and simultaneously output the combustion condition of the flame.
Description
Technical field
The invention belongs to Coal Gasification Technology field, particularly relates to a kind of gasification furnace flame detector system.
Background technology
Gasification furnace is more strict compared with boiler due to the particular surroundings of HTHP, its security, it is therefore necessary to is equipped with function
Complete, the flame detecting device of dependable performance is used to detect combustion position in the fired state and stove of gasification furnace, and the past typically adopts
With flame detecting probe, but it is only capable of obtaining the switching value that flame whether there is, and can not observe combustion position in stove.To solve as above to ask
Topic, there is the visualization flame detection system based on server at present, can obtain furnace flame situation, then profit by the imaging probe of front end
Correlation analysis is carried out with rear end computer, and then carries out fire defector, but because computer operational reliability itself is unable to reach industry
It is required that the problems such as deadlock be present, its stability and accuracy are remained in problem.
On the other hand, the fire inspection sighting tube position of overhead type single fire mouth gasification furnace is burner center.This kind of gasification furnace
In regular combustion process, due to reasons such as coal varitation, burner rigging error, the blockings of burner spout, it is possible that burner
Situation is burnt partially, i.e., flame is not centrosymmetric burner in circumferential direction, causes a direction temperature drift, and this is directly resulted in
Gasification furnace load is difficult to improve, and influences economy, possibly even causes gasification furnace to be burnt when serious and cause heavy losses.Mesh
Before, typically by arranging temperature transducer on gasification furnace body, determined whether by comparing same layer diverse location temperature
Burn partially, but there are the following problems using which：A) to protect sensor not to be destroyed, burner hearth, distance can not typically be goed deep into very much
Farther out, temperature lag be present in burner combustion flame；B) temperature transducer arrangement limited amount, can not be to one week each angle of burner hearth
All it is monitored, monitoring dead angle is present；C) temperature transducer working environment is severe, is easily damaged, and is difficult to repair after damaging.Top
Put after inclined burn occurs in formula single fire mouth gasification furnace and burnt partially, it is necessary to correct in time, is typically artificially controlled at present, shortage accuracy,
Promptness.
The content of the invention
Unstable in order to solve existing gasification furnace fire defector, the problem of lacking accurate high-speed switch amount, the present invention carries
For a kind of gasification furnace flame detector system, reliable and stable furnace flame combustion position can be monitored without what is postponed, it is defeated
Go out the switching value that flame whether there is, while export flame combustion situation.
A kind of gasification furnace flame detector system provided by the invention, including：
Imaging probe, it is arranged at the central nozzle of gasification furnace body outer gas burner, outside is for explosion-proof pressure-resistant
Housing, the flame vision signal at central nozzle that described image is popped one's head in for gathering gasification burner tip；
Data processing unit, be arranged in rack, the video inputs of data processing unit by coaxial cable with it is described
The video output terminals connection of imaging probe, the data processing unit are used to be believed according to the flame video of described image probe collection
Number, whether judge the gasification burner tip of described image probe detection has flame.
In a kind of specific embodiment, the data processing unit is additionally operable to timing and carries out fault self-checking, and in failure
Directly judge at the gasification burner tip without flame during the correctness for influenceing whether to there is flame to judge.
In a kind of specific embodiment, in addition to the DCS control systems being connected with the data processing unit；The number
According to processing unit according to whether there is the judged result of flame, the switching signal with/without flame is sent to the DCS control systems,
The DCS control systems according to the switching signal with/without flame stop chain；The data processing unit is also by event
Barrier self-detection result is sent to the DCS control systems.
In a kind of specific embodiment, the data processing unit is controlled by 2 core polyvinyl chloride insulating flexible cables and DCS
System connection processed.
In a kind of specific embodiment, the data processing unit has network signal delivery outlet, the gasification stove fire
Flame detecting system also includes the network switch and industrial computer；The input of the network switch connects the data processing
The network signal delivery outlet of unit, output end connect the industrial computer；The data processing unit passes through the network switch
Calculated by the flame vision signal and with/without the switching signal of flame by the network switch real-time Transmission to industry
Machine.
In a kind of specific embodiment, the data processing unit is additionally operable to according to the flame vision signal and pre-
The inclined burning situation computational methods first set, calculate the inclined burning situation of the gasification furnace；
Wherein, the situation computational methods of burning partially include：
The flame vision signal is analyzed using HSI color model, obtains H, S, I points of each pixel of each two field picture
Value；
Using the center of described image probe as the center of circle, the brightness value under polar coordinates is produced,
Using the center of described image probe as the center of circle, circumferentially decile is carried out for 360 ° at a predetermined angle for unit；
The average brightness of all pixels point under each decile is calculated, as the brightness value under the decile；
According to the brightness value under each decile, circumferential brightness disproportionation evenness is calculated, obtains the inclined burning situation of the gasification furnace.
In a kind of specific embodiment, the gasification furnace flame detector system is used for the gasification with three road cartridges
Stove, the industrial computer is also by controlling cable to be connected with the DCS control systems；
The data processing unit is also sent the circumferential brightness disproportionation evenness being calculated by the network switch
To industrial computer；
The industrial computer judges whether the circumferential brightness disproportionation evenness exceedes unevenness threshold value set in advance,
If so, then counting the fuel flow rate of the circumferential brightness disproportionation evenness repeatedly continuously received and corresponding three road cartridge, and utilize
Statistics carries out quadratic regression and function public affairs of the circumferential brightness disproportionation evenness on the fuel flow rate of three road cartridges is calculated
Formula, the fuel flow value for the three road cartridges for finally asking for making circumferential brightness disproportionation evenness take minimum value are simultaneously sent to the DCS
Control system；
The three road cartridges that DCS control systems control three road cartridge is sent according to the industrial computer
Fuel flow value works.
In a kind of specific embodiment, the data processing unit also has loop video output, the gasification stove fire
Flame detecting system also include the DVR being connected with the loop video output by coaxial cable and with it is described firmly
The monitoring terminal of disk video recorder connection；The data processing unit exports the flame vision signal to the DVR
Storage, the monitoring terminal obtain the data of the DVR deposit and are shown to user in real time.
In a kind of specific embodiment, the DCS control systems are additionally operable to control the data processing unit to start/answer
Position.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
Image flame test system of the present invention based on Embedded Principle design, by the central tube for being arranged in gasification burner tip
The imaging probe at mouthful place gathers video, at the video image gathered using embedded data processing unit to imaging probe
Reason, input flame video can be analyzed, so as to detect whether flame, participate in, can obtain in real time without rear end computer
Furnace flame situation, promptly and accurately output have aphlogistic switching signal, and stability and reliability are higher compared with prior art, effectively
Control equipment operation risk.
Brief description of the drawings
Fig. 1 is a kind of structural representation of gasification furnace flame detector system provided in an embodiment of the present invention；
Fig. 2 is the structural representation of another gasification furnace flame detector system provided in an embodiment of the present invention；
Fig. 3 is the structural representation of another gasification furnace flame detector system provided in an embodiment of the present invention；
Fig. 4 is the structural representation of another gasification furnace flame detector system provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of circumferentially 360 ° of progress deciles when predetermined angular is 30 °；
Fig. 6 is the structural representation of another gasification furnace flame detector system provided in an embodiment of the present invention.
[description of reference numerals]
1st, gasify furnace body, and 2, gasification burner tip, 3, imaging probe, 4, pressure hull,
5th, coaxial cable, 6, data processing unit, 7,2 core polyvinyl chloride insulating flexible cables,
8th, DCS control systems, 9, network signal delivery outlet, 10, the network switch,
11st, industrial computer, 12, control cable, 13, coaxial cable,
14th, DVR, 15, monitoring terminal,
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
Fig. 1 is a kind of structural representation of gasification furnace flame detector system provided in an embodiment of the present invention, such as institute in Fig. 1
Show, the system includes imaging probe 3 and data processing unit 6；As shown in fig. 1, imaging probe 3 is arranged in gasification furnace body 1
At the central nozzle of outer gasification burner tip 2, outside is for explosion-proof pressure hull 4, and imaging probe 3 is used to gather gasification burner tip 2
Central nozzle at flame vision signal；Data processing unit 6 is arranged in rack, the video input of data processing unit 6
End is connected by coaxial cable 5 with the video output terminals of imaging probe 3.Wherein, data processing unit 6 is used for according to imaging probe
The flame vision signal of 3 collections, judges whether the gasification burner tip that imaging probe 3 detects has flame.Specifically, data processing unit
Colored single board computer is included, is integrated with video acquisition unit, small processor, operating system etc., video acquisition unit is used to pass through
Imaging probe 5 gathers video, and small processor is handled by the DSP vision signals gathered to video acquisition unit, parses
The information such as the brightness that goes out in each frame of video, highlighted area, color, flicker frequency, flame evaluation algorithm, root built in operating system
Flame judgement is carried out according to the output data of small processor.
Above-mentioned gasification furnace flame detector system provided by the invention, reliable and stable furnace flame can be fired without delay
Burning situation is detected, the switching value that output flame whether there is, while exports flame combustion situation.
Preferably, data processing unit 6 also includes fault detect output unit, for carrying out self-test to equipment fault, and
Directly it will determine that without flame at the gasification burner tip, to ensure gasification furnace in the correctness whether fault impact has flame to judge
It is safe for operation, in addition, also exportable alarm signal is to prompt user when detecting faulty.
Fig. 2 is the structural representation of another gasification furnace flame detector system provided in an embodiment of the present invention, such as institute in Fig. 2
Show, the system is on the basis of system shown in Figure 1, in addition to the DCS control systems 8 being connected with data processing unit 6.At data
Unit 6 is managed according to whether there is the judged result of flame, the switching signal with/without flame is sent to DCS control systems 8, then DCS is controlled
System 8 processed can carry out stopping chain according to the switching signal with/without flame received, such as stop gasification furnace when without flame
Car；Controlled in addition, fault self-checking result (such as switching value of breakdown judge) is also sent to the DCS by data processing unit 6
System 8.DCS control systems 8 can be additionally used in control data processing unit 6 and start/reset, and be broken as starting, i.e., at log-on data
Manage unit 6 can outside output signal, close for reset, that is, stop 6 outside output signal of data processing unit.For example, DCS is controlled
Data processing unit 6 can control to reset when system receives faulty testing result, or when needed at direct control data
Reason unit 6 starts/resetted.
Preferably, data processing unit 6 can be connected by 2 core polyvinyl chloride insulating flexible cables 7 and the DCS control systems 8
Connect.
Fig. 3 is the structural representation of another gasification furnace flame detector system provided in an embodiment of the present invention, and the system exists
On the basis of system shown in Figure 2, in addition to the network switch 10 and industrial computer 11.In the present embodiment, data processing unit 6
With network signal delivery outlet 9, the input of the network switch 10 connects the network signal delivery outlet of the data processing unit 6
9, output end connects the industrial computer 11.In Fig. 3, data processing unit 6 is regarded the flame by the network switch 10
Frequency signal and with/without flame switching signal or further will determine that the flame analysis data whetheing there is during flame are led to
The real-time Transmission of the network switch 10 is crossed to industrial computer 11, so as to facilitate user to pass through the monitoring gasification in real time of industrial computer 11
The flame situation of stove.
Fig. 4 is the structural representation of another gasification furnace flame detector system provided in an embodiment of the present invention, and the system exists
On the basis of system shown in Figure 1, in addition to DVR 14 and monitoring terminal 15.In the present embodiment, data processing unit 6 is also
There is loop video output, DVR 14 is connected by coaxial cable 13 with the loop video output, monitoring terminal
15 are connected with DVR 14.Flame vision signal can be exported to DVR 14 and stored by data processing unit 6, monitoring
Terminal obtains the data of the deposit of DVR 14 and is shown to user in real time, i.e.,：Flame vision signal is accessed into full factory's video
Monitoring system 15, the video for full factory always monitor, and facilitate the flame situation of user's remote real-time monitoring gasification furnace, on the other hand
The data storage of DVR 14, the convenient working condition to gasification furnace carry out later stage tracking and maintenance.
In a preferred embodiment, data processing unit 6 is additionally operable to according to the flame vision signal that receives and in advance
The inclined burning situation computational methods set, calculate the inclined burning situation of the gasification furnace.Specifically, burning situation computational methods partially includes：
(1) the flame vision signal is analyzed using HSI color model, obtains H, S, the I component value of each pixel of each two field picture,
That is hue, saturation, intensity；Because I component is unrelated with the colour information of image, for what is commonly used in the case of gasification furnace low-light (level)
White-black pattern is more adapted to, therefore, with reference to each point coordinate position, is obtained each as the follow-up foundation burnt and judged partially using I component
The brightness value of point, i.e. f (x, y)=I, x, y are the position of a certain two field picture pixel；(2) using the center of imaging probe 3 as circle
The heart, produce the brightness value under polar coordinates, i.e. f (r, θ)=I；(3) it is at a predetermined angle list using the center of imaging probe 3 as the center of circle
Circumferentially 360 ° of progress deciles, predetermined angular can be selected arbitrarily for position, such as predetermined angular is 10 °, i.e., is circumferentially carried out according to 10 °
Cutting, it is divided into 36 deciles；(4) average brightness of all pixels point under circumferential 360 ° of each deciles is calculated, as the decile
Under brightness value, such as Fig. 5 show predetermined angular for 30 ° when circumferentially 360 ° progress decile situation, wherein I1Definition
For from the north orientation brightness value under first decile clockwise；(5) according to the brightness value under each decile, circumferential brightness is calculated not
The uniformity, obtains the inclined burning situation of the gasification furnace, may know which regional luminance is higher by axial brightness unevenness, supplies
Operating personnel judge to burn situation partially, carry out inclined burn in this way and judge that amount of calculation is small, fast response time, can track reality in time
When inclined burning situation, avoid the occurrence of the possibility for burning out burner or burner hearth.The gasification furnace flame detector system of the present embodiment carries out single
Burner gasification furnace burns detection partially, and by the way of relatively using temperature sensor, manually the inclined burning of progress judges at present, its is ageing, accuracy
There is large increase.
Gasification furnace burner typically has three road cartridges, circumferential two-by-two in 120 ° of distributions, if can be online in real time to gasification furnace
Three road fuel flow rates optimize regulation, so as to control fuel that it is inclined then can quickly to eliminate gasification furnace along the circumferential distribution of burner
Burning problem.
To realize object above, in a preferred embodiment, as shown in Figure 6, industrial computer 11 is also by controlling electricity
Cable 12 is connected with DCS control systems 8；Data processing unit 6 is also handed over the circumferential brightness disproportionation evenness being calculated by network
Change planes and 10 be sent to industrial computer 11；Industrial computer 11 is controlled according to the uniform flow being pre-designed of circumferential brightness disproportionation and calculated
Method, to the fuel flow rate Q of three road cartridges1、Q2、Q3Optimize regulation.
Specifically, the step of flow control algorithm being pre-designed in industrial computer 11 is：
(1) judge whether circumferential brightness disproportionation evenness exceedes unevenness threshold value set in advance, if so, then proceeding by
The optimizing regulation of fuel flow rate, if not exceeded, then without optimizing regulation；
(2) when proceeding by the optimizing regulation of fuel flow rate, the circumferential brightness disproportionation evenness repeatedly continuously received is first counted
And the fuel flow rate of corresponding three road cartridge obtains n group statistics (M1,Q11,Q12,Q13), (M2,Q21,Q22,Q23) ...,
(Mn,Qn1,Qn2,Qn3)；Wherein, n is statistics number, MnThe circumferential brightness disproportionation evenness obtained for n-th, Qn1、Qn2、Qn3Respectively
The fuel flow rate of the three road cartridges obtained for n-th；
(3) statistics (M is utilized1,Q11,Q12,Q13), (M2,Q21,Q22,Q23) ..., (Mn,Qn1,Qn2,Qn3) carry out it is secondary
Fuel flow rate Qs of the circumferential brightness disproportionation evenness M on three road cartridges shown in formula (1) is calculated in recurrence1、Q2、Q3Letter
Number formula：
In formula (1), W1To W10The regression coefficient being calculated for quadratic regression；
(4) the fuel flow value Q of three road cartridges for making circumferential brightness disproportionation evenness M take minimum value is asked for1、Q2、Q3。
Industrial computer 11 calculates the fuel flow value that the circumferential brightness disproportionation evenness M that sends as an envoy to takes three road cartridges of minimum value
Q1、Q2、Q3Afterwards, by make circumferential brightness disproportionation evenness M take minimum value three road cartridges fuel flow value Q1、Q2、Q3It is sent to
DCS control systems 8, the fuel for the three road cartridges that the three road cartridges of control of DCS control systems 8 are sent according to industrial computer 11
Flow value works, and carries out circumferential asymmetry evenness statistics again afterwards, if circumferential asymmetry evenness reaches design requirement, stops calculating,
If not yet reaching design requirement, above-mentioned calculation procedure is repeated, until reaching design requirement or calculation times.Utilize with top
Method, the flow optimization regulation of the cartridge of gasification furnace can be quickly carried out, avoids influence caused by burning partially.
Relative to existing gasification furnace flame detector system, image flame inspection system of the present invention based on Embedded Principle design
System, can obtain furnace flame situation, and accurate output has aphlogistic switching signal, and stability is higher compared with the past.Using gas
Change flame detecting system progress single fire mouth gasification furnace and burn detection partially, relatively manually carrying out inclined burn using temperature sensor at present judges
Mode, its is ageing, and accuracy has large increase.Another further aspect, using the system optimizing control burnt partially, more current people
Work carries out Flow-rate adjustment more quick and precisely.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
- A kind of 1. gasification furnace flame detector system, it is characterised in that including：Imaging probe (3), it is arranged at the central nozzle of gasification furnace body outer gas burner, outside is for explosion-proof pneumatic shell Body (4), described image probe (3) are used to gather the flame vision signal at the central nozzle of gasification burner tip；Data processing unit (6), is arranged in rack, the video inputs of data processing unit (6) by coaxial cable (5) with Described image probe (3) video output terminals connection, the data processing unit (6) be used for according to described image pop one's head in (3) adopt Whether the flame vision signal of collection, judging the gasification burner tip of described image probe (3) detection has flame.
- 2. gasification furnace flame detector system as claimed in claim 1, it is characterised in that the data processing unit (6) is also used Fault self-checking is carried out in timing, and is directly judged at the gasification burner tip in the correctness whether fault impact has flame to judge Without flame.
- 3. gasification furnace flame detector system as claimed in claim 2, it is characterised in that also include and the data processing unit (6) the DCS control systems (8) of connection；The data processing unit (6) is according to whether have the judged result of flame, to the DCS Control system (8) sends the switching signal with/without flame, and the DCS control systems (8) are according to the switch with/without flame Signal stop chain；Fault self-checking result is also sent to the DCS control systems (8) by the data processing unit (6).
- 4. gasification furnace flame detector system as claimed in claim 3, it is characterised in that the data processing unit (6) passes through 2 Core polyvinyl chloride insulating flexible cable (7) is connected with DCS control systems (8).
- 5. gasification furnace flame detector system as claimed in claim 3, it is characterised in that the data processing unit (6) has Network signal delivery outlet (9), the gasification furnace flame detector system also include the network switch (10) and industrial computer (11)； The input of the network switch (10) connects the network signal delivery outlet (9) of the data processing unit (6), and output end connects Connect the industrial computer (11)；The data processing unit (6) is by the network switch (10) by the flame vision signal And give industrial computer (11) by the network switch (10) real-time Transmission with/without the switching signal of flame.
- 6. gasification furnace flame detector system as claimed in claim 5, it is characterised in that the data processing unit (6) is also used In the inclined burning shape for according to the flame vision signal and the inclined burning situation computational methods pre-set, calculating the gasification furnace Condition；Wherein, the situation computational methods of burning partially include：The flame vision signal is analyzed using HSI color model, obtains H, S, the I component of each pixel of each two field picture Value；Using described image pop one's head in (3) center as the center of circle, produce the brightness value under polar coordinates,Using described image pop one's head in (3) center as the center of circle, at a predetermined angle for unit circumferentially 360 ° progress decile；The average brightness of all pixels point under each decile is calculated, as the brightness value under the decile；According to the brightness value under each decile, circumferential brightness disproportionation evenness is calculated, obtains the inclined burning situation of the gasification furnace.
- 7. gasification furnace flame detector system as claimed in claim 6, it is characterised in that the gasification furnace flame detector system is used In the gasification furnace with three road cartridges, the industrial computer (11) is also by controlling cable (12) to be controlled with the DCS System (8) connection；The data processing unit (6) is also sent out the circumferential brightness disproportionation evenness being calculated by the network switch (10) Give industrial computer (11)；The industrial computer (11) judges whether the circumferential brightness disproportionation evenness exceedes unevenness threshold value set in advance, If so, then counting the fuel flow rate of the circumferential brightness disproportionation evenness repeatedly continuously received and corresponding three road cartridge, and utilize Statistics carries out quadratic regression and function public affairs of the circumferential brightness disproportionation evenness on the fuel flow rate of three road cartridges is calculated Formula, the fuel flow value for the three road cartridges for finally asking for making circumferential brightness disproportionation evenness take minimum value are simultaneously sent to the DCS Control system (8)；The three road fuel that DCS control systems (8) control three road cartridge is sent according to the industrial computer (11) The fuel flow value work of pipe.
- 8. gasification furnace flame detector system as claimed in claim 1, it is characterised in that the data processing unit (6) also has Loop video output, the gasification furnace flame detector system are also included by coaxial cable (13) and the loop video frequency output The DVR (14) of mouth connection and the monitoring terminal (15) being connected with the DVR (14)；The data processing The flame vision signal is exported to the DVR (14) and stored by unit (6), and the monitoring terminal obtains institute in real time State the data of DVR (14) deposit and be shown to user.
- 9. the gasification furnace flame detector system as described in claim any one of 1-8, it is characterised in that the DCS control systems (8) it is additionally operable to control the data processing unit (6) startup/reset.
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|---|---|---|---|
| CN201710685717.8A CN107509050A (en) | 2017-08-08 | 2017-08-08 | Gasifier flame detecting system |
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|---|---|---|---|
| CN201710685717.8A CN107509050A (en) | 2017-08-08 | 2017-08-08 | Gasifier flame detecting system |
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| CN107509050A true CN107509050A (en) | 2017-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945594A (en) * | 2021-01-25 | 2021-06-11 | 中国华能集团清洁能源技术研究院有限公司 | Pressure testing device of ignition start-up pulverized coal burner |
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| JPH05231642A (en) * | 1992-02-21 | 1993-09-07 | Babcock Hitachi Kk | Method and apparatus for detecting choking of burner tip nozzle |
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