JPH05215319A - Device and method of controlling combustion of incinerator - Google Patents
Device and method of controlling combustion of incineratorInfo
- Publication number
- JPH05215319A JPH05215319A JP2020792A JP2020792A JPH05215319A JP H05215319 A JPH05215319 A JP H05215319A JP 2020792 A JP2020792 A JP 2020792A JP 2020792 A JP2020792 A JP 2020792A JP H05215319 A JPH05215319 A JP H05215319A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- main fuel
- signal
- combustion
- air
- 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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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、焼却炉燃焼制御装置お
よび制御方法に係り、特に含水率の変化する燃料、例え
ば廃棄物を燃焼させる焼却炉において燃料中の水分によ
る燃焼不良を防止し、焼却炉を安全に運転することを可
能とした焼却炉の燃焼制御装置および制御方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator combustion control device and control method, and particularly to prevent combustion failure due to water in fuel in an incinerator that burns fuel with varying water content, such as waste. The present invention relates to a combustion control device and a control method for an incinerator that enable safe operation of the incinerator.
【０００２】[0002]
【従来の技術】従来は、含水率など性状の変動の大きい
廃棄物のような主燃料の供給量（燃焼量）を基準にそれ
らに見合った燃焼空気量を決定し、主燃料の性状変化に
対しては目測からの判断によって、手動により燃焼空気
量の調節を行なっている。主燃料性状が悪く焼却炉内の
温度が異常に低下したときには助燃バーナが自動的に投
入され焼却炉内の温度が基準範囲になるように自動調節
される断続運転となっているが、主燃料性状の異常変化
が大きいときには助燃バーナを投入しても焼却炉内温度
が低下し消火に至ること、また補助燃料消費量が増加し
不経済であり、改善が望まれている。2. Description of the Related Art Conventionally, based on the supply amount (combustion amount) of a main fuel such as waste whose properties vary greatly such as water content, the combustion air amount corresponding to them is determined, and the property change of the main fuel is determined. On the other hand, the amount of combustion air is manually adjusted based on the judgment from visual observation. When the main fuel property is bad and the temperature inside the incinerator drops abnormally, the auxiliary burner is automatically turned on and the temperature inside the incinerator is automatically adjusted to fall within the standard range. When an abnormal change in properties is large, even if an auxiliary combustion burner is put in, the temperature inside the incinerator falls and the fire extinguishes, and the auxiliary fuel consumption increases, which is uneconomical, and improvement is desired.
【０００３】[0003]
【発明が解決しようとする課題】上記従来技術は、主燃
料性状の大きな変動に対応するためには、操作員の判断
に頼るしかなく対応の遅れにより消火に至り、再起動の
処置に伴う焼却時間の減少、補助燃料量の増大等が発生
するという問題があった。本発明の目的は、操作員の判
断に頼ることなく、自動的に主燃料性状変化に対応した
燃焼空気量、燃料量の調節により炉内の異常温度低下時
の消火防止、ならびに炉内温度の異常上昇においては主
燃料量を制限調節し、安定した連続運転と補助燃料消費
量の低減を計る焼却炉燃焼制御装置および制御方法を提
供することにある。In order to deal with large fluctuations in the properties of the main fuel, the above-mentioned prior art has to rely on the operator's judgment, which leads to fire extinguishing due to delay in response, and incineration accompanying restarting treatment. There was a problem that the time was reduced and the amount of auxiliary fuel was increased. An object of the present invention is to automatically extinguish a combustion air amount corresponding to a change in a main fuel property without depending on a judgment of an operator, and to adjust a fuel amount to prevent fire extinguishing when an abnormal temperature in the furnace is lowered, and a temperature of the furnace. It is an object of the present invention to provide an incinerator combustion control device and a control method for limiting and controlling the main fuel amount in the case of an abnormal rise to achieve stable continuous operation and reduction of the auxiliary fuel consumption amount.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
本願の第１の発明は、焼却炉に含水率に変動のある主燃
料と燃焼用空気を供給して燃焼させる焼却炉の燃焼制御
装置において、燃焼炉へ供給する主燃料量に基づいて求
めた燃焼用空気信号を、炉出口排ガス中のＯ2成分によ
り補正して空気量設定信号とする部分と、この空気量設
定信号を、主燃料量と主燃料中の水分とから求めた水分
量により水分量が多いときは増し、少ないときは減らす
水分量補正信号によって補正する部分と、この補正され
た空気量設定値と炉への供給空気量測定値と比較して炉
内への供給空気量を制御する部分と、主燃料中の水分量
が所定量以上のときは助燃バーナを起動して助燃バーナ
への助燃料量を上記水分量によって制御する部分とを備
えたことを特徴とする焼却炉燃焼制御装置に関する。In order to achieve the above object, the first invention of the present application is to provide a combustion control device for an incinerator, in which the main fuel and the combustion air having varying water contents are supplied to the incinerator for combustion. In the above, the combustion air signal obtained based on the main fuel amount supplied to the combustion furnace is corrected by the O 2 component in the furnace outlet exhaust gas to be an air amount setting signal, and this air amount setting signal is The amount of water increased from the amount of fuel and the amount of water in the main fuel when the amount of water is high, and when the amount of water is low, the part to be corrected by the amount correction signal of the amount of water and this corrected air amount set value and supply to the furnace The part that controls the amount of air supplied to the furnace by comparing it with the measured value of the amount of air, and when the amount of water in the main fuel is greater than or equal to a predetermined amount, start the auxiliary burner and set the amount of auxiliary fuel to the auxiliary burner to the above-mentioned moisture. Characterized by having a portion controlled by the quantity That on the incinerator combustion control system.
【０００５】第２の発明は、焼却炉に含水率の変動する
主燃料と燃焼用空気を供給して燃焼させる焼却炉の燃焼
制御方法において、焼却炉に供給する主燃料に基づいて
求めた空気量設定信号を、主燃料中に含まれる水分量に
より補正し、この補正値と炉への供給空気測定量と比較
して炉内への供給空気量を制御するとともに、炉内に供
給する主燃料量信号と炉内温度の測定値とにより供給主
燃料カロリ偏差を演算し、この演算値により上記主燃料
量信号を補正し、この補正された値と主燃料量測定値と
の偏差量により主燃料供給量を制御することを特徴とす
る焼却炉燃焼制御方法に関する。A second aspect of the present invention is a combustion control method for an incinerator in which a main fuel having a variable water content and combustion air are supplied to the incinerator for combustion, and the air obtained based on the main fuel supplied to the incinerator is used. The amount setting signal is corrected by the amount of water contained in the main fuel, the amount of air supplied to the furnace is controlled by comparing this corrected value with the measured amount of air supplied to the furnace, and The supply main fuel calorie deviation is calculated from the fuel amount signal and the measured value of the furnace temperature, the main fuel amount signal is corrected by this calculated value, and the deviation amount between the corrected value and the main fuel amount measured value is calculated. The present invention relates to an incinerator combustion control method characterized by controlling a main fuel supply amount.
【０００６】第３の発明は、上記第２の発明において、
供給主燃料カロリ偏差の演算値により補正された主燃料
量信号を、供給主燃料中の水分量に基づき補正し、この
補正された主燃料量信号と主燃料量測定値との偏差量に
より主燃料供給量を制御することを特徴とする焼却炉燃
焼制御方法に関する。第４の発明は、流動層焼却炉に含
水率に変動のある主燃料と燃焼用空気を供給して燃焼さ
せる流動層焼却炉の燃焼制御方法において、焼却炉へ供
給する主燃料量に基づいて求めた燃焼用空気量信号を、
主燃料量と主燃料中の水分率とから求めた水分量補正信
号により補正し、この補正された値と炉への供給空気量
検出信号と比較して炉内への供給空気量を制御するとと
もに、炉内に供給する主燃料信号を炉内ガス温度と前記
水分量補正信号により補正し、この補正された値と主燃
料量測定値との偏差値に基づいて主燃料供給量を制御
し、焼却炉の流動層内温度の測定値と設定値の偏差量、
または主燃料量と主燃料中の水分率より求めた助燃料供
給信号が所定値をこえたときは助燃バーナを起動して同
バーナへの助燃料供給量を前記偏差量または助燃料供給
信号に基づいて制御することを特徴とする流動層の焼却
炉燃焼制御方法に関する。A third aspect of the invention is the same as the second aspect of the invention.
The main fuel amount signal corrected by the calculated value of the deviation of the supplied main fuel calorie is corrected based on the amount of water in the supplied main fuel, and the main difference is determined by the difference between the corrected main fuel amount signal and the measured main fuel amount. The present invention relates to an incinerator combustion control method characterized by controlling a fuel supply amount. A fourth aspect of the present invention is a combustion control method for a fluidized bed incinerator, in which a main fuel with varying water content and combustion air are supplied to the fluidized bed incinerator for combustion, and based on the amount of main fuel supplied to the incinerator. The obtained combustion air amount signal is
It is corrected by the water content correction signal obtained from the main fuel amount and the water content in the main fuel, and the air supply amount to the furnace is controlled by comparing this corrected value with the air supply amount detection signal to the furnace. At the same time, the main fuel signal supplied to the furnace is corrected by the furnace gas temperature and the water content correction signal, and the main fuel supply amount is controlled based on the deviation value between the corrected value and the measured main fuel amount value. , The amount of deviation between the measured value and the set value of the temperature in the fluidized bed of the incinerator,
Alternatively, when the auxiliary fuel supply signal obtained from the main fuel amount and the moisture content in the main fuel exceeds a predetermined value, the auxiliary combustion burner is activated and the auxiliary fuel supply amount to the burner is set to the deviation amount or the auxiliary fuel supply signal. The present invention relates to a method for controlling combustion in a fluidized bed incinerator, which is characterized by performing control based on the above.
【０００７】第５の発明は、上記第４の発明において、
流動層内温度の測定値と設定値の偏差量に基づく信号
と、主燃料量と主燃料中の水分率より求めた助燃料供給
信号のいずれか大きい方の信号に基づいて助燃バーナへ
の助燃料供給量を制御することを特徴とする流動層の焼
却炉燃焼制御方法に関する。A fifth invention is the same as the fourth invention,
Auxiliary combustion burner assistance is based on the larger of the signal based on the deviation between the measured and set values of the fluidized bed temperature and the auxiliary fuel supply signal obtained from the main fuel amount and the moisture content in the main fuel. The present invention relates to a fluidized bed incinerator combustion control method characterized by controlling a fuel supply amount.
【０００８】[0008]
【実施例】図１に本発明に係わる焼却炉燃焼制御装置の
一実施例を示す。主燃料は燃料ホッパ１０６に投入さ
れ、燃料供給機４３により焼却炉１０１に供給される。
燃料供給機４３には燃料量発信器４１、燃料水分計７が
設置されている。なお、燃料水分計７はマイクロ波が水
分を含んだ物質中を通過する際の位相変化および減衰す
る原理をマイクロコンピュータで解析し水分量を算出す
る。さらに精度をあげるため、被測定物の層厚および密
度の変化を放射線式密度計の付加で補正する。焼却炉１
０１には助燃バーナ１１０への燃料供給のための助燃バ
ーナ弁６、炉内温度検出器５があり、助燃バーナの運用
に供される。FIG. 1 shows an embodiment of an incinerator combustion control device according to the present invention. The main fuel is put into the fuel hopper 106, and is supplied to the incinerator 101 by the fuel supplier 43.
A fuel amount transmitter 41 and a fuel moisture meter 7 are installed in the fuel supplier 43. The fuel moisture meter 7 calculates the amount of moisture by analyzing the principle of phase change and attenuation when microwaves pass through a substance containing moisture by a microcomputer. To further improve accuracy, changes in the layer thickness and density of the object to be measured are corrected by adding a radiation type densitometer. Incinerator 1
Reference numeral 01 includes an auxiliary combustion burner valve 6 for supplying fuel to the auxiliary combustion burner 110 and a furnace temperature detector 5, which are used for operating the auxiliary combustion burner.
【０００９】燃焼空気は送風機１０２から空気予熱器１
０４で燃焼ガスと熱交換され、焼却炉１０１に供給され
る。燃焼空気量は空気量操作器４によって調節され、そ
の風道１０８には空気量発信器１を設置し、燃焼空気量
が計測される。燃焼ガスは煙道１０９、空気予熱器１０
４、通風機１０３を経て煙突１０５から排出される。煙
道１０９には排ガスＯ2 検出器３１が設置されている。
炉内ガス温度検出器３６により燃料供給機４３の負荷制
御に供する。制御器１０７は主燃料量、燃焼空気量およ
び助燃バーナ弁６の制御回路が収納される。Combustion air is sent from the blower 102 to the air preheater 1
At 04, heat is exchanged with the combustion gas, and the heat is supplied to the incinerator 101. The amount of combustion air is adjusted by the air amount controller 4, and the air amount transmitter 1 is installed in the air passage 108 to measure the amount of combustion air. Combustion gas is flue 109, air preheater 10
4. It is discharged from the chimney 105 through the fan 103. An exhaust gas O 2 detector 31 is installed in the flue 109.
The in-furnace gas temperature detector 36 is used for load control of the fuel supplier 43. The controller 107 houses the control circuits for the main fuel amount, the combustion air amount, and the auxiliary burner valve 6.
【００１０】図２および図３に本発明の制御回路を示
す。図２は主に燃料水分計７に係わる燃焼空気量および
助燃バーナ弁６の回路を示し、燃焼空気量は空気量設定
信号３に水分量による補正信号乗算器１４を経て、空気
量調節器２の設定信号が与えられ、空気量検出器１の測
定信号と空気量調節器２で比較演算され、空気量設定信
号３の補正された信号と一致するよう空気量操作器４に
より調節される。燃料水分計７の測定信号は信号遅れ器
にて平滑され、高低制限器１０により補正範囲を設定
し、関数発生器１１で図４に示す一例のように水分量の
増加時はプラス（＋）補正、より過剰空気量とし、炉内
の燃焼を活性化することで水分の気化熱を補い炉内温度
低下を防ぐ。逆に水分量が減少した時はマイナス（−）
補正、過剰空気量を少なくし、燃焼をおさえる。燃料量
設定信号２１により前記水分量補正率を補正するため、
関数発生器１２に入力され、関数発生器１２の出力は乗
算器１３で水分信号補正し、乗算器１４により空気量調
節器２の設定信号を補正する。炉内温度検出器５の測定
値と、炉内温度調節器１５の設定値と比較し、測定値が
設定値より低い時は開弁信号を発生し、助燃バーナ弁６
を開弁し助燃する。なお、弁６の開弁量は設定値と測定
値の偏差量に比例する。逆に測定値が高くなれば開弁信
号を減らし助燃バーナ弁６を閉じる方向に制御し炉内温
度を調節する。高信号選択器１７は炉内温度調節器１５
の出力信号と乗算器１９の出力信号が設定値を越えたと
きに開弁信号を発生する調節器１９′の出力信号の何れ
か高い方を選択し助燃バーナ弁６の調節信号として出力
する。燃料水分計７からの信号は関数発生器１６で水分
量による助燃バーナ弁６の助燃量信号に演算された後、
さらに燃料量設定信号２１に比例した助燃量にすべく関
数発生器１８で演算し、乗算器１９により補正して調節
器１９′を経て前述の高信号選択器１７の一方の助燃量
入力信号とする。2 and 3 show the control circuit of the present invention. FIG. 2 mainly shows a circuit of the combustion air amount and the auxiliary combustion burner valve 6 related to the fuel / moisture meter 7. The combustion air amount passes through the air amount setting signal 3 through the correction signal multiplier 14 depending on the water amount, and then the air amount controller 2 Of the air amount detector 1 is compared with the measured signal of the air amount detector 1 by the air amount controller 2 and adjusted by the air amount manipulator 4 so as to match the corrected signal of the air amount setting signal 3. The measurement signal of the fuel moisture meter 7 is smoothed by the signal delay device, the correction range is set by the height limiter 10, and the function generator 11 increases (+) when the amount of water increases as in the example shown in FIG. By correcting the amount of excess air and activating the combustion in the furnace, the heat of vaporization of water is supplemented to prevent the temperature in the furnace from lowering. On the contrary, when the water content decreases, it is minus (-).
Correction, reducing excess air volume and suppressing combustion. In order to correct the water content correction rate by the fuel amount setting signal 21,
The output of the function generator 12 is input to the function generator 12, and the multiplier 13 corrects the moisture signal, and the multiplier 14 corrects the setting signal of the air amount controller 2. The measured value of the in-furnace temperature detector 5 is compared with the set value of the in-furnace temperature controller 15, and when the measured value is lower than the set value, a valve opening signal is generated, and the auxiliary burner valve 6
Open the valve to support combustion. The valve opening amount of the valve 6 is proportional to the deviation amount between the set value and the measured value. On the contrary, if the measured value becomes higher, the valve opening signal is reduced and the auxiliary burner valve 6 is controlled to be closed to adjust the furnace temperature. The high signal selector 17 is the furnace temperature controller 15
Or the output signal of the controller 19 'which generates a valve opening signal when the output signal of the multiplier 19 and the output signal of the multiplier 19 exceed the set values, and the higher one is selected and output as the control signal of the auxiliary burner valve 6. The signal from the fuel / moisture meter 7 is calculated by the function generator 16 into the auxiliary combustion amount signal of the auxiliary combustion burner valve 6 based on the amount of water,
Further, the function generator 18 calculates the amount of auxiliary combustion in proportion to the fuel amount setting signal 21, and the multiplier 19 corrects the amount of auxiliary combustion and adjusts it by the controller 19 ', and inputs the auxiliary amount of input signal to one of the high signal selectors 17 described above. To do.
【００１１】図３は主燃料供給および空気量設定信号制
御回路を示し、燃料量発信器４１の測定信号は燃料量設
定信号２１にカロリー演算器３７の補正のための除算器
４０出力信号を水分量補正するための加算器４６を経た
信号を設定値として燃料調節器４２にて比較し、設定値
と一致するようその出力信号は燃料供給機４３を操作し
て燃料量の増減調節をする。カロリー演算器３７は燃料
量設定信号２１と、炉内温度ガス検出器３６の測定信号
とを比較し、規定値以上の測定信号をカロリー演算をし
て、除算器４６でカロリー増加量を逆比例として補正す
る回路。水分量補正信号２２は前述した燃焼空気量設定
信号３の水分量による補正に伴う燃焼の活性化によって
生ずる燃料量過不足分を補償するものであり、関数発生
器３９により演算され、遅れ時間補償器３８で燃焼遅れ
時間を補償し、加算器４６により燃料量信号を補正す
る。空気量設定信号３は燃料量設定信号２１か、燃料量
発信器４１の測定信号のいずれか高い方の信号が高信号
選択器４４で選択されて、燃料量−燃焼空気量の過剰空
気率を設定する関数発生器４５で空気比率が演算され、
排ガスＯ2 補正乗算器３３で過剰空気率を補償した空気
量設定信号となる。FIG. 3 shows a main fuel supply and air amount setting signal control circuit, in which the measurement signal of the fuel amount transmitter 41 is the fuel amount setting signal 21 and the output signal of the divider 40 for correction of the calorie calculator 37 is water. The fuel controller 42 compares the signal that has passed through the adder 46 for correcting the amount as a set value and compares the output signal with the set value by operating the fuel supplier 43 to increase or decrease the fuel amount. The calorie calculator 37 compares the fuel amount setting signal 21 with the measurement signal of the furnace temperature gas detector 36, calculates the calorie of the measurement signal equal to or more than the specified value, and the divider 46 inversely proportionally increases the calorie increase amount. Circuit to correct as. The water content correction signal 22 is for compensating for the excess or deficiency of the fuel quantity generated by the activation of combustion accompanying the correction of the combustion air quantity setting signal 3 by the water content, and is calculated by the function generator 39 to compensate the delay time. The burner delay time is compensated by the device 38, and the fuel amount signal is corrected by the adder 46. As the air amount setting signal 3, either the fuel amount setting signal 21 or the measurement signal of the fuel amount transmitter 41, whichever is higher, is selected by the high signal selector 44, and the excess air ratio of fuel amount-combustion air amount is set. The function generator 45 to be set calculates the air ratio,
The exhaust gas O 2 correction multiplier 33 becomes an air amount setting signal in which the excess air ratio is compensated.
【００１２】排ガスＯ2 検出器３１の測定信号は高信号
選択器４４の出力信号に関数発生器３４で燃料量と排ガ
スＯ2 の比率に変換されて、水分量補正のための排ガス
Ｏ2補償加算器４７で排ガスＯ2 設定信号となり、排ガ
スＯ2 調節器３２で比較演算されて、空気過剰率補償信
号として乗算器３３により空気量設定信号を補正する。
一方、水分量補正信号２２は関数発生器３５で水分量補
正値に比例した排ガスＯ2 値であるべく補正し、加算器
４７で、前述のごとく排ガスＯ2 値を補償する回路であ
り、これらの回路により安定な運転が得られる。The measurement signal of the exhaust gas O 2 detector 31 is converted into the output signal of the high signal selector 44 by the function generator 34 into the ratio of the fuel amount and the exhaust gas O 2 , and the exhaust gas O 2 compensation for water content correction is performed. The adder 47 produces an exhaust gas O 2 setting signal, the exhaust gas O 2 regulator 32 performs a comparison calculation, and the multiplier 33 corrects the air amount setting signal as an excess air ratio compensation signal.
On the other hand, the water amount correction signal 22 is corrected so is the exhaust gas O 2 value proportional to the water amount correction value by a function generator 35, an adder 47, a circuit for compensating the exhaust gas O 2 value as described above, these Stable operation can be obtained by the circuit.
【００１３】図５に他の実施例を示す。主燃料（廃棄物
−汚泥）は焼却炉１０１へ供給する事前に燃料水分計７
による測定信号で乾燥機１１２により規定の水分量に調
節し、輸送機１１１により供給することで安定した焼却
炉の運転が可能となる。FIG. 5 shows another embodiment. The main fuel (waste-sludge) is supplied to the incinerator 101 before the fuel moisture meter 7
The moisture content is adjusted to a specified amount by the dryer 112 by the measurement signal according to, and is supplied by the transporter 111, which enables stable operation of the incinerator.
【００１４】[0014]
【発明の効果】本発明によれば、焼却炉への主燃料供給
に先立ち、主燃料の水分量を検出し、それらに対応した
燃焼を計るために焼却炉炉内の温度低下による停止が防
止でき連続運転が可能となる他、水分量の異なる焼却物
の混焼も容易にでき、さらに補助燃料量の節約も可能と
なる。According to the present invention, before the main fuel is supplied to the incinerator, the moisture content of the main fuel is detected, and the combustion corresponding to the moisture content is detected to prevent the stoppage due to the temperature decrease in the incinerator furnace. In addition to the continuous operation, it is possible to easily incinerate incinerators having different water contents and to save the amount of auxiliary fuel.
【図１】図１は、本発明になる焼却炉燃焼制御装置の実
施例系統図である。FIG. 1 is a system diagram of an embodiment of an incinerator combustion control device according to the present invention.
【図２】、[Fig. 2]
【図３】図２および図３は、本発明の実施例における燃
焼制御回路説明図である。FIG. 2 and FIG. 3 are explanatory views of a combustion control circuit in the embodiment of the present invention.
【図４】図４は、燃料中の水分による燃焼用空気量、主
燃料量の補正特性を示す図である。FIG. 4 is a diagram showing correction characteristics of the amount of combustion air and the amount of main fuel due to moisture in the fuel.
【図５】図５は、本発明の他の実施例を示す図である。FIG. 5 is a diagram showing another embodiment of the present invention.
１…空気量検出器、２…空気量調節器、３…空気量設定
信号、４…空気量操作器、５…炉（層）内温度検出器、
７…燃料主分計、９…信号遅れ器、１０…高低信号制限
器、１１、１２…関数発生器、１３、１４…乗算器、１
５…炉（層）内温度調節器、１６…関数発生器、１７…
高信号選択器、１８…関数発生器、１９…乗算器、１
９′…炉（層）内温度調節器、２０…排ガスＯ2 補正信
号、２１…燃料量設定信号、２２…水分量補正信号、３
１…排ガスＯ2 検出器、３２…排ガスＯ2 調節器、３３
…乗算器、３４、３５…関数発生器、３６…炉内ガス温
度検出器、３７…カロリー演算器、３８…遅れ時間補償
器、３９…関数発生器、４０…除算器、４１…燃料量発
信器、４２…燃料調節器、４３…燃料供給機、４４…高
信号選択器、４５…関数発生器、４６、４７…加算器、
１０１…（流動層）焼却炉、１０２…送風機、１０３…
通風機、１０４…空気予熱器、１０５…煙突、１０６…
燃料ホッパ、１０８…風道、１０９…煙道、１１０…助
燃バーナ。1 ... Air amount detector, 2 ... Air amount controller, 3 ... Air amount setting signal, 4 ... Air amount operating device, 5 ... Furnace (layer) temperature detector,
7 ... Main fuel meter, 9 ... Signal delay device, 10 ... High / low signal limiter, 11, 12 ... Function generator, 13, 14 ... Multiplier, 1
5 ... Temperature controller in furnace (layer), 16 ... Function generator, 17 ...
High signal selector, 18 ... Function generator, 19 ... Multiplier, 1
9 '... Furnace (layer) temperature controller, 20 ... Exhaust gas O 2 correction signal, 21 ... Fuel amount setting signal, 22 ... Moisture amount correction signal, 3
1 ... Exhaust gas O 2 detector, 32 ... Exhaust gas O 2 controller, 33
... Multiplier, 34, 35 ... Function generator, 36 ... Furnace gas temperature detector, 37 ... Calorie calculator, 38 ... Delay time compensator, 39 ... Function generator, 40 ... Divider, 41 ... Fuel amount transmission 42, ... Fuel regulator, 43 ... Fuel feeder, 44 ... High signal selector, 45 ... Function generator, 46, 47 ... Adder,
101 ... (Fluidized bed) incinerator, 102 ... Blower, 103 ...
Ventilator, 104 ... Air preheater, 105 ... Chimney, 106 ...
Fuel hopper, 108 ... wind passage, 109 ... flue, 110 ... auxiliary burner.
Claims (5)
焼用空気を供給して燃焼させる焼却炉の燃焼制御装置に
おいて、燃焼炉へ供給する主燃料量に基づいて求めた燃
焼用空気信号を、炉出口排ガス中のＯ2 成分により補正
して空気量設定信号とする部分と、この空気量設定信号
を、主燃料量と主燃料中の水分とから求めた水分量によ
り水分量が多いときは増し、少ないときは減らす水分量
補正信号によって補正する部分と、この補正された空気
量設定値と炉への供給空気量測定値と比較して炉内への
供給空気量を制御する部分と、主燃料中の水分量が所定
量以上のときは助燃バーナを起動して助燃バーナへの助
燃料量を上記水分量によって制御する部分とを備えたこ
とを特徴とする焼却炉燃焼制御装置。1. A combustion control apparatus for an incinerator, which burns a main fuel and a combustion air, the water content of which fluctuates in the incinerator. The combustion air is determined based on the amount of the main fuel supplied to the combustion furnace. The signal is corrected by the O 2 component in the exhaust gas from the furnace to be used as an air amount setting signal, and the air amount setting signal is used to determine the water amount based on the water amount obtained from the main fuel amount and the water in the main fuel. Increase the amount when the amount is large, and decrease the amount when the amount is small.The part to be corrected by the water amount correction signal is compared with the corrected air amount setting value and the measured value of the supplied air amount to the furnace to control the amount of air supplied to the furnace. Incinerator combustion control, characterized by comprising a part and a part for starting the auxiliary burner to control the auxiliary fuel amount to the auxiliary burner by the amount of water when the amount of water in the main fuel is above a predetermined amount. apparatus.
用空気を供給して燃焼させる焼却炉の燃焼制御方法にお
いて、焼却炉に供給する主燃料に基づいて求めた空気量
設定信号を、主燃料中に含まれる水分量により補正し、
この補正値と炉への供給空気測定量と比較して炉内への
供給空気量を制御するとともに、炉内に供給する主燃料
量信号と炉内温度の測定値とにより供給主燃料カロリ偏
差を演算し、この演算値により上記主燃料量信号を補正
し、この補正された値と主燃料量測定値との偏差量によ
り主燃料供給量を制御することを特徴とする焼却炉燃焼
制御方法。2. In an incinerator combustion control method, wherein a main fuel with varying water content and combustion air are supplied to an incinerator for combustion, and an air amount setting signal obtained based on the main fuel supplied to the incinerator is used. , Corrected by the amount of water contained in the main fuel,
This correction value is compared with the measured amount of air supplied to the furnace to control the amount of air supplied to the furnace, and the main fuel calorific deviation is supplied by the signal of the main fuel amount supplied to the furnace and the measured value of the furnace temperature. Is calculated, the main fuel amount signal is corrected by this calculated value, and the main fuel supply amount is controlled by the deviation amount between the corrected value and the main fuel amount measured value. ..
差の演算値により補正された主燃料量信号を、供給主燃
料中の水分量に基づき補正し、この補正された主燃料量
信号と主燃料量測定値との偏差量により主燃料供給量を
制御することを特徴とする焼却炉燃焼制御方法。3. The main fuel amount signal corrected by the calculated value of the supply main fuel calorific deviation according to claim 2, is corrected based on the amount of water in the supply main fuel, and the corrected main fuel amount signal and main A method for controlling combustion in an incinerator, characterized in that the main fuel supply amount is controlled by a deviation amount from a measured fuel amount value.
料と燃焼用空気を供給して燃焼させる流動層焼却炉の燃
焼制御方法において、焼却炉へ供給する主燃料量に基づ
いて求めた燃焼用空気量信号を、主燃料量と主燃料中の
水分率とから求めた水分量補正信号により補正し、この
補正された値と炉への供給空気量検出信号と比較して炉
内への供給空気量を制御するとともに、炉内に供給する
主燃料信号を炉内ガス温度と前記水分量補正信号により
補正し、この補正された値と主燃料量測定値との偏差値
に基づいて主燃料供給量を制御し、焼却炉の流動層内温
度の測定値と設定値の偏差量、または主燃料量と主燃料
中の水分率より求めた助燃料供給信号が所定値をこえた
ときは助燃バーナを起動して同バーナへの助燃料供給量
を前記偏差量または助燃料供給信号に基づいて制御する
ことを特徴とする流動層の焼却炉燃焼制御方法。4. In a combustion control method for a fluidized bed incinerator, in which a main fuel with varying water content and combustion air are supplied to the fluidized bed incinerator for combustion, it is determined based on the amount of main fuel supplied to the incinerator. The combustion air amount signal is corrected by the water amount correction signal obtained from the main fuel amount and the water content in the main fuel, and the corrected value is compared with the supply air amount detection signal to the furnace While controlling the amount of air supplied to the furnace, the main fuel signal supplied to the furnace is corrected by the furnace gas temperature and the water content correction signal, and based on the deviation value between the corrected value and the measured main fuel quantity. The main fuel supply amount is controlled by the control unit, and the deviation between the measured value and the set value of the temperature in the fluidized bed of the incinerator or the auxiliary fuel supply signal obtained from the main fuel amount and the water content in the main fuel exceeds the predetermined value. In this case, start the auxiliary burner and change the auxiliary fuel supply amount to the burner to the above deviation amount or A method for controlling combustion in a fluidized bed incinerator, characterized in that control is performed based on an auxiliary fuel supply signal.
値と設定値の偏差量に基づく信号と、主燃料量と主燃料
中の水分率より求めた助燃料供給信号のいずれか大きい
方の信号に基づいて助燃バーナへの助燃料供給量を制御
することを特徴とする流動層の焼却炉燃焼制御方法。5. The signal according to claim 4, which is the greater of the signal based on the deviation amount between the measured value and the set value of the temperature in the fluidized bed and the auxiliary fuel supply signal obtained from the main fuel amount and the water content in the main fuel. A method for controlling combustion in a fluidized bed incinerator, characterized in that the amount of auxiliary fuel supplied to the auxiliary combustion burner is controlled on the basis of the signal of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4020207A JP3068936B2 (en) | 1992-02-05 | 1992-02-05 | Incinerator combustion control device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4020207A JP3068936B2 (en) | 1992-02-05 | 1992-02-05 | Incinerator combustion control device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05215319A true JPH05215319A (en) | 1993-08-24 |
| JP3068936B2 JP3068936B2 (en) | 2000-07-24 |
Family
ID=12020723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4020207A Expired - Fee Related JP3068936B2 (en) | 1992-02-05 | 1992-02-05 | Incinerator combustion control device and control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3068936B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101117193B1 (en) * | 2011-08-12 | 2012-03-07 | 한국기계연구원 | Generating system using biomass |
| KR101299175B1 (en) * | 2013-04-23 | 2013-08-26 | 주식회사 한양인더스트리 | Cremator combustion control system |
| KR101320641B1 (en) * | 2013-04-23 | 2013-10-23 | 주식회사 한양인더스트리 | Cremator operating system used tic and fic |
-
1992
- 1992-02-05 JP JP4020207A patent/JP3068936B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101117193B1 (en) * | 2011-08-12 | 2012-03-07 | 한국기계연구원 | Generating system using biomass |
| KR101299175B1 (en) * | 2013-04-23 | 2013-08-26 | 주식회사 한양인더스트리 | Cremator combustion control system |
| KR101320641B1 (en) * | 2013-04-23 | 2013-10-23 | 주식회사 한양인더스트리 | Cremator operating system used tic and fic |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3068936B2 (en) | 2000-07-24 |
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