JPH0431719A - Combustion diagnostic apparatus - Google Patents
Combustion diagnostic apparatusInfo
- Publication number
- JPH0431719A JPH0431719A JP13705590A JP13705590A JPH0431719A JP H0431719 A JPH0431719 A JP H0431719A JP 13705590 A JP13705590 A JP 13705590A JP 13705590 A JP13705590 A JP 13705590A JP H0431719 A JPH0431719 A JP H0431719A
- Authority
- JP
- Japan
- Prior art keywords
- flame
- calculation circuit
- circuit
- receives
- index
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000002485 combustion reaction Methods 0.000 title claims description 15
- 238000002834 transmittance Methods 0.000 claims abstract description 16
- 230000006870 function Effects 0.000 claims abstract description 9
- 238000003745 diagnosis Methods 0.000 claims abstract description 5
- 238000011156 evaluation Methods 0.000 claims description 7
- 230000002123 temporal effect Effects 0.000 claims description 6
- 239000003086 colorant Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
- Control Of Combustion (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は事業用、産業用等ボイラの燃焼診断装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a combustion diagnostic device for boilers for business use, industrial use, etc.
〔従来の技術］ 従来例を第４図により説明する。[Conventional technology] A conventional example will be explained with reference to FIG.
複数のバーナを有するボイラの火炉１の火炎２を観測す
る目的で各バーナに対し１台のイメージファイバ３を火
炉１に設置し、同イメージファイバ３にカラーカメラ４
が接続される。同カメラ４の出力はカラー映像デイスプ
レィ１５に入力されるとともに、デコーダ５に接続され
その出力は赤（Ｒ）、緑（Ｇ）、青（Ｂ）の色成分６に
分解されて、フレームメモリ７に入力される。同フレー
ムメモリ７のＲ信号、Ｇ信号、Ｂ信号から次の演算結果
を導き、燃焼調整の指標としている。For the purpose of observing the flame 2 of the furnace 1 of a boiler having multiple burners, one image fiber 3 is installed in the furnace 1 for each burner, and a color camera 4 is attached to the image fiber 3.
is connected. The output of the camera 4 is input to a color video display 15, and is also connected to a decoder 5, where the output is separated into red (R), green (G), and blue (B) color components 6, and is stored in a frame memory 7. is input. The following calculation results are derived from the R signal, G signal, and B signal of the frame memory 7, and are used as indicators for combustion adjustment.
（１）火炎表面の温度分布演算８
フレームメモリ７のＲ及びＢ信号を入力し、その比Ｒ／
Ｂをもとに二色温度計と同じ原理にて温度を算出する。(1) Flame surface temperature distribution calculation 8 Input the R and B signals of the frame memory 7, and the ratio R/
The temperature is calculated based on B using the same principle as a two-color thermometer.
（２）時間安定度演算９
フレームメモリ７のＧ信号を入力し、Ｇ信号の時間１＝
１．の画像からＬ ＝ ｔ ｚの画像の減算をを施し、
その結果の時間的変化量を算出する。(2) Time stability calculation 9 Input the G signal of the frame memory 7, and time 1 of the G signal =
1. Subtract the image of L = tz from the image of
The resulting amount of change over time is calculated.
（３）スモーク演算１０
フレームメモリ７のＲ信号とＢ信号を入力し、Ｒ信号と
Ｂ信号の差（Ｒ−Ｂ）を算出する。(3) Smoke calculation 10 The R signal and B signal of the frame memory 7 are input, and the difference (R-B) between the R signal and the B signal is calculated.
上記従来の装置には次のような問題点があった。 The conventional device described above has the following problems.
（１）火炎表面の温度分布およびスモーク分布の２次元
の情報をもとに、人間が燃焼の良否を判断することは困
難である。(1) It is difficult for humans to judge the quality of combustion based on two-dimensional information on the temperature distribution and smoke distribution on the flame surface.
（２）火炎の瞬間のデータをもとにした火炎表面の温度
分布、時間安定度および、スモーク分布に対し良否の判
断基準がないため、判断する人によって燃焼の良否の判
断が異る。(2) Since there is no standard for judging whether the temperature distribution of the flame surface, temporal stability, or smoke distribution is good or bad based on the instantaneous data of the flame, the judgment of the good or bad combustion differs depending on the judge.
（３）火炎表面の温度分布および、スモーク分布は２次
元の分布データである。２次元分布データはそれを見て
人間がその良否を判断するデータとしては不適切である
。(3) The temperature distribution on the flame surface and the smoke distribution are two-dimensional distribution data. Two-dimensional distribution data is inappropriate for humans to judge whether it is good or bad.
本発明は上記課題を解決するため次の手段を講する。 The present invention takes the following measures to solve the above problems.
すなわち１、燃焼診断装置として、火炉中のバーナの火
炎をカラーカメラで撮映し、写された映像出力を三原色
の赤、緑、青の色成分に分解し、フレームメモリに入力
した装置において、上記フレームメモリの赤および青信
号を入力し火炎の高温部の面積率を算出する高温度面積
率演算回路と、同高温度面積率演算回路の出力を受け火
炎の温度指標を算出する火炎温度指標演算回路と、上記
フレームメモリの赤信号を入力し火炎の透過率を算出す
る透過率演算回路と、上記フレームメモリの赤信号を入
力し赤成分低輝度面積を算出する低輝度面積演算回路と
、上記透過率演算回路および低輝度面積演算回路の出力
を受け火炎の透明度指標を算出する火炎透明度指標演算
回路と、上記フレームメモリの緑または赤信号を入力し
火炎の時間安定度を算出する時間安定度演算回路と、上
記フレームメモリの赤信号を入力し火炎の平均輝度レベ
ルを算出する平均輝度レベル演算回路と、上記時間安定
度演算回路および上記平均輝度レベル演算回路の出力を
受け火炎の安定度指標を算出する火炎安定度指標演算回
路と、上記の火炎温度指標演算回路、火炎透明度指標演
算回路、および火炎安定度指標演算回路の出力を受け個
別バーナ評価関数を求め同個別バーナの燃焼状態を診断
出力する診断回路とを備えてなることを特徴とするよう
にした。In other words, 1. As a combustion diagnosis device, the flame of a burner in a furnace is photographed using a color camera, and the photographed video output is separated into the three primary color components of red, green, and blue, and input into a frame memory. A high temperature area ratio calculation circuit that inputs the red and blue signals of the frame memory and calculates the area ratio of the high temperature part of the flame, and a flame temperature index calculation circuit that receives the output of the high temperature area ratio calculation circuit and calculates the flame temperature index. a transmittance calculation circuit that inputs the red signal of the frame memory and calculates the flame transmittance; a low-luminance area calculation circuit that inputs the red signal of the frame memory and calculates the red component low-luminance area; A flame transparency index calculation circuit that receives the outputs of the rate calculation circuit and the low brightness area calculation circuit and calculates the flame transparency index, and a time stability calculation circuit that receives the green or red signal from the frame memory and calculates the temporal stability of the flame. circuit, an average brightness level calculation circuit that inputs the red signal of the frame memory and calculates the average brightness level of the flame, and a flame stability index that receives the outputs of the time stability calculation circuit and the average brightness level calculation circuit. Receives the outputs of the flame stability index calculation circuit to be calculated, the flame temperature index calculation circuit, the flame transparency index calculation circuit, and the flame stability index calculation circuit described above, calculates an individual burner evaluation function, and outputs a diagnosis of the combustion state of the individual burner. The present invention is characterized in that it is equipped with a diagnostic circuit that performs
〔作用］
上記手段により、火炎温度指標演算回路はフレームメモ
リの赤および青信号を入力し高温度の面積率を算出する
。さらに火炎温度指標演算回路は同高温度面積率演算回
路の出力を受け火炎の温度指標を算出する。また透過率
演算回路はフレームメモリの赤信号を入力し火炎の透過
率を算出する。[Operation] With the above means, the flame temperature index calculating circuit inputs the red and blue signals of the frame memory and calculates the high temperature area ratio. Further, the flame temperature index calculation circuit receives the output from the same high temperature area ratio calculation circuit and calculates a flame temperature index. Further, the transmittance calculation circuit inputs the red signal from the frame memory and calculates the flame transmittance.
さらに低輝度面積演算回路はフレームメモリの赤信号を
入力し赤成分低輝度面積を算出する。さらに火炎透明度
指標演算回路は透過率演算回路および低輝度面積演算回
路の出力を受け火炎の透明度指標を算出する。また時間
安定度演算回路はフレームメモリの緑または赤信号を入
力し火炎の時間安定度を算出する。さらに平均輝度レベ
ル演算回路は、フレームメモリの赤信号を入力し火炎の
平均輝度レベルを算出する。さらに火炎安定度指標演算
回路は時間安定度演算回路および上記平均輝度レベル演
算回路の出力を受け火炎の安定度指標を算出する。また
診断回路は、火炎温度指標演算回路、火炎透明度指標演
算回路、および火炎安定度指標演算回路の出力を受け予
め定義された個別バーナ評価関数を求め同個別バーナの
燃焼状態を診断出力する。Further, the low brightness area calculation circuit receives the red signal from the frame memory and calculates the red component low brightness area. Furthermore, the flame transparency index calculation circuit receives the outputs of the transmittance calculation circuit and the low brightness area calculation circuit and calculates a flame transparency index. Further, the temporal stability calculation circuit inputs the green or red signal from the frame memory and calculates the temporal stability of the flame. Further, the average brightness level calculation circuit receives the red signal from the frame memory and calculates the average brightness level of the flame. Furthermore, the flame stability index calculation circuit receives outputs from the time stability calculation circuit and the average brightness level calculation circuit and calculates a flame stability index. The diagnostic circuit receives outputs from the flame temperature index calculation circuit, flame transparency index calculation circuit, and flame stability index calculation circuit, calculates a predefined individual burner evaluation function, and outputs a diagnosis of the combustion state of the individual burner.
このようにして火炉中の個別バーナの燃焼状態が容易に
診断されるようになる。In this way, the combustion state of the individual burners in the furnace can be easily diagnosed.
本発明の一実施例を第１図から第３図により説明する。 An embodiment of the present invention will be described with reference to FIGS. 1 to 3.
なお、従来例で説明した部分は同一の番号をつけ、説明
を省略し、この発明に関する部分を主体に説明する。Note that the parts explained in the conventional example are given the same numbers and the explanations are omitted, and the parts related to the present invention will be mainly explained.
第１図にて、フレームメモリ７の赤（Ｒ）信号と青（Ｂ
）信号は高温度面積率演算回路２０を経て火炎温度指標
演算回路２５へ送られる。またフレームメモリ７のＲ信
号は透過率演算回路２１を経て火炎透明度指標演算回路
２６へ送られる。さらに信号は低輝度面積演算回路２２
を経て火炎透明度指標演算回路２６へ送られる。またフ
レームメモリ７の緑（Ｇ）またはＲ信号は時間安定度演
算回路２３を経て火炎安定度指標演算回路２７へ送られ
る。さらにＲ信号は平均輝度レベル演算回路２４を経て
火炎安定度指標演算回路２７へ送られる。また火炎温度
指標演算回路２５、火炎透明度指標演算回路２６および
火炎安定度指標演算回路２７の出力は診断回路２日を経
て表示装置２９へ送られる。In Figure 1, the red (R) signal and blue (B) signal of frame memory 7 are shown.
) The signal is sent to the flame temperature index calculation circuit 25 via the high temperature area ratio calculation circuit 20. Further, the R signal of the frame memory 7 is sent to the flame transparency index calculation circuit 26 via the transmittance calculation circuit 21. Furthermore, the signal is transmitted to the low brightness area calculation circuit 22.
The signal is sent to the flame transparency index calculation circuit 26 via the . Further, the green (G) or R signal of the frame memory 7 is sent to the flame stability index calculation circuit 27 via the time stability calculation circuit 23. Furthermore, the R signal is sent to the flame stability index calculation circuit 27 via the average brightness level calculation circuit 24. Further, the outputs of the flame temperature index calculation circuit 25, flame transparency index calculation circuit 26, and flame stability index calculation circuit 27 are sent to the display device 29 after passing through the diagnostic circuit for two days.
以上において高温度面積率演算回路２０、火炎温度指標
演算回路２５、透過率演算回路２１、低輝度面積演算回
路２２、火炎透明度指標演算回路２６、時間安定度演算
回路２３、平均輝度レベル演算回路２４、火炎安定度指
標演算回路２７、および診断回路２８はまとめられて演
算装置１００となっている。In the above, high temperature area ratio calculation circuit 20, flame temperature index calculation circuit 25, transmittance calculation circuit 21, low brightness area calculation circuit 22, flame transparency index calculation circuit 26, time stability calculation circuit 23, average brightness level calculation circuit 24 , the flame stability index calculation circuit 27, and the diagnostic circuit 28 are combined into a calculation device 100.
以上の構成において、高温度面積率演算回路２０は高温
度面積率を演算するとき、まず次のようにして（１）式
により火炎表面の温度分布を求める。In the above configuration, when calculating the high temperature area ratio, the high temperature area ratio calculation circuit 20 first calculates the temperature distribution on the flame surface using equation (1) as follows.
すなわち、フレームメモリ７から入力したＲ信号、Ｂ信
号は第２図に示すＲ１ｊ３０． Ｂ １ｊ３１の２次元
のデータ群である。この２次元のデータの個数は１つの
テレビ画面を所定の数に分割した結果である。ここでば
ｊ＝１〜１００．ｊ＝１〜１００として以下説明する。That is, the R signal and B signal input from the frame memory 7 are input to R1j30. shown in FIG. This is a two-dimensional data group of B 1j31. The number of two-dimensional data is the result of dividing one television screen into a predetermined number of pieces. Here, j=1 to 100. The following description will be made assuming that j=1 to 100.
火炎表面の温度分布Ｔｉｊ３３は前述の二色温度計の原
理にもとづきＲｉｊ／Ｂｔｊの関数３２として求められ
る。The temperature distribution Tij 33 on the flame surface is determined as a function 32 of Rij/Btj based on the principle of the two-color thermometer described above.
・（１）
ここで
ａＺ＋ ａｌ＋ ａｏは温度較正の実測値法に高温度面
積率（）Ｉ） ３４を（２）式にて求める。- (1) Here, aZ + al + ao is calculated using the actual measurement value method of temperature calibration, and the high temperature area ratio () I) 34 is calculated using equation (2).
ここでＳｏ：火炎面積（火炎表面温度分布Ｔｉｊに於い
てＴ１（°Ｃ）以上の点の総和として定義）
Ｓｌ：高温部面積（火炎表面温度分布Ｔｉｊに於いて’
ｒｚ（”ｃ）以上の点の総和として定義）
火炎温度指標演算回路２は高温度面積率演算回路２０の
信号を受け火炎温度指標（Ｆｌ）を（３）式で求め出力
する。Here, So: Flame area (defined as the sum of points above T1 (°C) in the flame surface temperature distribution Tij) Sl: High temperature area (in the flame surface temperature distribution Tij'
rz (defined as the sum of points equal to or higher than "c") The flame temperature index calculation circuit 2 receives the signal from the high temperature area ratio calculation circuit 20, calculates the flame temperature index (Fl) using equation (3), and outputs it.
σＮ
ここで
Ｔ：Ｈの平均値
σＭ ＝Ｈの分散値
Ｈ：Ｈの現在値
（３］式の平均値丁、分散値σ、は良好な運転、状況下
のデータをもとにして、予め求めた値である。σN Here, T: Average value of H σM = Variance value of H H: Current value of H The average value and variance value σ in equation (3) are determined in advance based on data under good driving and conditions. This is the obtained value.
透過率演算回路２１はＲ信号を受け透過率（τ）を（４
）弐で求める。The transmittance calculation circuit 21 receives the R signal and calculates the transmittance (τ) by (4
) Find it with 2.
ここで Ｎ：データ総数、Ｎ ＝ １００ ｘ １００
Ｒｉｊ：赤信号（第２図の３０）
Ｔｉｊ ：火炎表面の温度分布（第２図の３３）また低
輝度面積演算回路２２はＲ信号を受け赤成分低輝度面積
（Ｓｌｌ）を（５）式により算出する。Here, N: total number of data, N = 100 x 100
Rij: Red signal (30 in Figure 2) Tij: Temperature distribution on the flame surface (33 in Figure 2) Also, the low brightness area calculation circuit 22 receives the R signal and calculates the red component low brightness area (Sll) using equation (5). Calculated by
Ｓ罠＝Σ（Ｒｉｊ＞−Ｒｏを満足する点を１とする）ｊ
・ ・ ・（５）
ここでＲｏ ：低輝度レベルのしきい値次４Ｊ炎透明度
指標演算回路２６は透過率（τ）及び赤成分低輝度面積
（Ｓ＋ｔ ）の信号をを入力して火炎透明度指標Ｆ２を
（６）式にて求める。S trap = Σ (the point that satisfies Rij>-Ro is set as 1) j ・ ・ ・ (5) where Ro: threshold value of low luminance level The next 4J flame transparency index calculation circuit 26 calculates the transmittance (τ) and the signal of the red component low brightness area (S+t) are input, and the flame transparency index F2 is determined using equation (6).
σＳ１１
ここで
τ、に７：透過率（τ）及び赤成分低輝度面積（ＳＲ）
の平均値
σ、、σ、１：τ 及びＳ８の分散値
Ｋｒ、Ｋｓ＊：重み係数、但しＫｒ＋Ｋｓｍ＝１τ、
Ｓ糞 ： τ、 Ｓ、 の現在イ直（６）式の平均
値、分散値は良好な運転状況下のデータをもとに、予め
求めた値である。σS11 where τ, to 7: transmittance (τ) and red component low brightness area (SR)
Average value σ,, σ, 1: τ and variance value Kr, Ks* of S8: weighting coefficient, where Kr+Ksm=1τ,
S: The average value and variance of τ, S, and equation (6) are values determined in advance based on data under good driving conditions.
時間安定度演算回路２３はＲまたはＧを入力する。The time stability calculation circuit 23 receives R or G as input.
ここでは例えばＧ信号を入力し、まずＧ信号の平均輝度
レベルα６を（７）と（８）式で順次求める。Here, for example, a G signal is input, and first the average luminance level α6 of the G signal is sequentially determined using equations (7) and (8).
Δα、＝αＧｌｔ１１ −α、Ｌ２． ・
・ ・（８）ここで
Ｇｉｊｓ緑信号の輝度レベル、 ｉ 、 ｊ ＝
１〜１００Ｎ：データ総数、 Ｎ＝ １００ｘｌＯＯα
ｃ（ｔｒ：を時刻の緑信号の平均輝度レベルさらに、平
均輝度レベル演算回路２４はＲ信号を入力し赤成分の平
均輝度レベルを平均輝度レベル（αｌ）として（９）式
にて算出する。Δα, = αGlt11 −α, L2.・
・ ・(8) Here, the brightness level of the Gijs green signal, i, j =
1 to 100N: total number of data, N= 100xlOOα
c(tr: is the average brightness level of the green signal at the time. Furthermore, the average brightness level calculation circuit 24 inputs the R signal and calculates the average brightness level of the red component as the average brightness level (αl) using equation (9).
ここで Ｒｉｊ：赤成分の輝度レベル
ｉ、ｊ＝ｌ〜１００
Ｎ：データ総数、 Ｎ＝ １００Ｘ１００また火炎安定
度指標演算回路２７は時間安定度（Δα６）及び平均輝
度レベル（α６）信号を入力して００式にて火炎安定度
指標Ｆ、を求める。Here, Rij: brightness level i of red component, j=l~100 N: total number of data, N=100X100 Also, the flame stability index calculation circuit 27 inputs the temporal stability (Δα6) and average brightness level (α6) signals. Calculate the flame stability index F using formula 00.
σ Δ α糞
σα糞
ここで
Δ−１τ、 百：Δｃｒ、及びαにの平均値・０ω
σΔα岡、σαＩＩ：ΔαＧ及びα×の分散値ΔαＧ
αＲ：ΔαＧ、α３の現在値
に、、に２ ：重み係数、Ｋ ＋ ＋ Ｋ ｚ・１００
）式の平均値、分散値は良好な運転状況下のデータをも
とに、予め求めた値である。σ Δ α feces σα feces where Δ−1τ, 100: Δcr, and the average value of α・0ω σΔαoka, σαII: ΔαG and the variance value of α× ΔαG
αR: ΔαG, the current value of α3, 2: Weighting coefficient, K + + K z・100
) The average value and variance value of the equation are values determined in advance based on data under good driving conditions.
診断回路２８は燃焼診断の指標Ｆｌ＋ Ｆ２＋ Ｆ
ｓの信号を入力しまず００式にて、個別バーナ評価関数
（Ｆ）を求める。The diagnostic circuit 28 is a combustion diagnostic indicator Fl+F2+F.
Input the signal of s and first calculate the individual burner evaluation function (F) using equation 00.
Ｆ＝Σ Ｆｉ、 ｉ＝１〜３ ・・・０１１００
式にて求めた個別バーナ評価関数Ｆに対し、統計データ
から、複数のしきい値（ｎｏ＋ １＋）を定義し、診
断結果を算出し、表示装置２９へ出力する。F=Σ Fi, i=1~3...01100
A plurality of threshold values (no+1+) are defined from statistical data for the individual burner evaluation function F determined by the formula, a diagnostic result is calculated, and the result is output to the display device 29.
以下に出力例を示す。An example output is shown below.
正常出カニＦ＜ｎ。Normal output crab F<n.
軽故障出カニｎｏ＜Ｆ＜ｎ
重故障比カニ Ｆ ＞ ｎ Ｉ
ここで
正常出力・・・良好な運転状況に近い
軽故障出力・・・良好な運転状況から、ずれが認められ
る
重故障出力・・・良好な運転状況からのずれ量が大きい
個別バーナに異常有
り
を示す。Minor failure output no < F < n Major failure ratio F > n I Here, normal output... Light failure output that is close to a good operating condition... Major failure output where a deviation is recognized from the good operating condition. ...Indicates an abnormality in individual burners that have a large deviation from good operating conditions.
第３図に表示装置２９に表示された例を示す。FIG. 3 shows an example displayed on the display device 29.
図には、各バーナＡ４．Ａ５・・・Ｃ６それぞれの火炎
温度指標（Ｆ、）、火炎透明度指標（Ｆ２）、火炎安定
度指標（Ｆ３）およびそれぞれの診断結果が示されてい
る。The figure shows each burner A4. The flame temperature index (F, ), flame transparency index (F2), flame stability index (F3), and respective diagnostic results for A5...C6 are shown.
この例では、Ａ４バーナの火炎温度指標（Ｆｌ）及び火
炎透明度指標（Ｆ２）のレベルが低下し、その評価関数
Ｆが１．＜）”＜ｎ、となり、軽故障状態であることを
示している。In this example, the levels of the flame temperature index (Fl) and flame transparency index (F2) of the A4 burner are lowered, and the evaluation function F is 1. <)”<n, indicating a light failure state.
Ａ５バーナは火炎温度指標（Ｆｌ）及び火炎透明度指標
（Ｆ、）のレベルが更に低下しＦ＞ｎ＋となり重故障状
態であることを示す。The levels of the flame temperature index (Fl) and flame transparency index (F, ) of the A5 burner further decrease to become F>n+, indicating a serious failure state.
一方、Ｃ５，Ｃ６バーナに於ては、火炎温度指標（Ｆ、
）のみのレベルが低下したが、火炎安定度指標（Ｆ、）
及び火炎透明度指標（Ｆ２）が高しベルを維持しており
、個別バーナとしては軽又は重故障レベルに達していな
いことを示している。On the other hand, in C5 and C6 burners, the flame temperature index (F,
) only the level of flame stability index (F, ) decreased.
and the flame transparency index (F2) remained high, indicating that the individual burner had not reached the level of minor or major failure.
以上のようにして個別バーナの燃焼状態が容易に診断さ
れるようになる。As described above, the combustion state of each individual burner can be easily diagnosed.
［発明の効果］ 以上に説明したように、本発明は次の効果を奏する。[Effect of the invention] As explained above, the present invention has the following effects.
（１）バーナ火炎の燃焼状態の特徴を抽出する。(1) Extract the characteristics of the combustion state of the burner flame.
火炎温度指標、火炎透明度指標、及び火炎安定度指標を
算出することによって、良好な燃焼状況との比較が容易
にできるようになる。By calculating the flame temperature index, flame transparency index, and flame stability index, a comparison with a good combustion situation can be easily made.
（２）火炎温度指標、火炎透明度指標、および火炎安定
度指標から個別バーナの評価関数を算出することによっ
て、個別バーナの異常診断が的確にできるようになる。(2) By calculating the evaluation function of each burner from the flame temperature index, flame transparency index, and flame stability index, it becomes possible to accurately diagnose abnormalities of the individual burners.
第１図は、本発明の一実施例の構成ブロック線図、第２
図は同実施例の高温度面積率演算回路の演算処理系統図
、第３図は同実施例の表示装置の表示例図、第４図は従
来例の構成ブロック線図である。
ｌ・・・火炉５ ２・・・火炎３・・・イ
メージファイバ、 ４・・・カラーカメラ。
５・・・デコーダ、 ６・・・色成分７・
・・フレームメモリ。
２５・・・火炎温度指標演算回路。
２６・・・火炎透明度指標演算回路。
２７・・・火炎安定度指標演算回路
２８・・・診断回路、２９・・・表示装置。
１００・・・演算装置。FIG. 1 is a configuration block diagram of an embodiment of the present invention, and FIG.
The figure is a calculation processing system diagram of the high temperature area ratio calculation circuit of the same embodiment, FIG. 3 is a display example diagram of the display device of the same embodiment, and FIG. 4 is a configuration block diagram of a conventional example. l... Furnace 5 2... Flame 3... Image fiber, 4... Color camera. 5...Decoder, 6...Color component 7.
...Frame memory. 25...Flame temperature index calculation circuit. 26...Flame transparency index calculation circuit. 27...Flame stability index calculation circuit 28...Diagnostic circuit, 29...Display device. 100... Arithmetic device.
Claims (1)
た映像出力を三原色の赤、緑、青の色成分に分解し、フ
レームメモリに入力した装置において、上記フレームメ
モリの赤および青信号を入力し火炎の高温部の面積率を
算出する高温度面積率演算回路と、同高温度面積率演算
回路の出力を受け火炎の温度指標を算出する火炎温度指
標演算回路と、上記フレームメモリの赤信号を入力し火
炎の透過率を算出する透過率演算回路と、上記フレーム
メモリの赤信号を入力し赤成分低輝度面積を算出する低
輝度面積演算回路と、上記透過率演算回路および低輝度
面積演算回路の出力を受け火炎の透明度指標を算出する
火炎透明度指標演算回路と、上記フレームメモリの緑ま
たは赤信号を入力し火炎の時間安定度を算出する時間安
定度演算回路と、上記フレームメモリの赤信号を入力し
火炎の平均輝度レベルを算出する平均輝度レベル演算回
路と、上記時間安定度演算回路および上記平均輝度レベ
ル演算回路の出力を受け火炎の安定度指標を算出する火
炎安定度指標演算回路と、上記の火炎温度指標演算回路
、火炎透明度指標演算回路、および火炎安定度指標演算
回路の出力を受け個別バーナ評価関数を求め同個別バー
ナの燃焼状態を診断出力する診断回路とを備えてなるこ
とを特徴とする燃焼診断装置。The flame of the burner in the furnace is photographed with a color camera, the photographed video output is separated into the three primary color components of red, green, and blue, and the red and blue signals from the frame memory are input to a device that inputs the red and blue signals to the frame memory. A high temperature area ratio calculation circuit that calculates the area ratio of the high temperature part of the flame, a flame temperature index calculation circuit that receives the output of the high temperature area ratio calculation circuit and calculates the temperature index of the flame, and a red light of the frame memory. a transmittance calculation circuit that inputs the signal and calculates the flame transmittance, a low-brightness area calculation circuit that inputs the red signal of the frame memory and calculates the red component low-brightness area, and the transmittance calculation circuit and the low-brightness area calculation circuit a flame transparency index calculation circuit that receives the output of the circuit and calculates the flame transparency index; a time stability calculation circuit that receives the green or red signal from the frame memory and calculates the temporal stability of the flame; an average brightness level calculation circuit that inputs signals and calculates the average brightness level of the flame; and a flame stability index calculation circuit that receives outputs from the time stability calculation circuit and the average brightness level calculation circuit and calculates a flame stability index. and a diagnostic circuit that receives the outputs of the flame temperature index calculation circuit, flame transparency index calculation circuit, and flame stability index calculation circuit, calculates an individual burner evaluation function, and outputs a diagnosis of the combustion state of the individual burner. A combustion diagnostic device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13705590A JP2744677B2 (en) | 1990-05-29 | 1990-05-29 | Combustion diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13705590A JP2744677B2 (en) | 1990-05-29 | 1990-05-29 | Combustion diagnostic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0431719A true JPH0431719A (en) | 1992-02-03 |
| JP2744677B2 JP2744677B2 (en) | 1998-04-28 |
Family
ID=15189829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13705590A Expired - Lifetime JP2744677B2 (en) | 1990-05-29 | 1990-05-29 | Combustion diagnostic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2744677B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5547369A (en) * | 1993-03-17 | 1996-08-20 | Hitachi, Ltd. | Camera, spectrum analysis system, and combustion evaluation apparatus employing them |
| JP2014095664A (en) * | 2012-11-12 | 2014-05-22 | Mitsubishi Heavy Ind Ltd | Temperature detection method, temperature detection device and program |
| CN114485957A (en) * | 2022-02-11 | 2022-05-13 | 华北电力科学研究院有限责任公司 | Method and device for analyzing ignition stability of pulverized coal burner |
-
1990
- 1990-05-29 JP JP13705590A patent/JP2744677B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5547369A (en) * | 1993-03-17 | 1996-08-20 | Hitachi, Ltd. | Camera, spectrum analysis system, and combustion evaluation apparatus employing them |
| JP2014095664A (en) * | 2012-11-12 | 2014-05-22 | Mitsubishi Heavy Ind Ltd | Temperature detection method, temperature detection device and program |
| CN114485957A (en) * | 2022-02-11 | 2022-05-13 | 华北电力科学研究院有限责任公司 | Method and device for analyzing ignition stability of pulverized coal burner |
| CN114485957B (en) * | 2022-02-11 | 2024-04-19 | 华北电力科学研究院有限责任公司 | Method and device for analyzing ignition stability of pulverized coal burner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2744677B2 (en) | 1998-04-28 |
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