JP2003315156A - Furnace temperature distribution measuring device and method - Google Patents
Furnace temperature distribution measuring device and methodInfo
- Publication number
- JP2003315156A JP2003315156A JP2002124064A JP2002124064A JP2003315156A JP 2003315156 A JP2003315156 A JP 2003315156A JP 2002124064 A JP2002124064 A JP 2002124064A JP 2002124064 A JP2002124064 A JP 2002124064A JP 2003315156 A JP2003315156 A JP 2003315156A
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- Prior art keywords
- temperature
- measuring
- pattern
- temperature pattern
- infrared camera
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は温度分布測定装置及
び方法に係り、特に炉内の対象物の絶対温度分布を測定
することのできる炉内温度分布測定装置及び方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature distribution measuring apparatus and method, and more particularly to a furnace temperature distribution measuring apparatus and method capable of measuring an absolute temperature distribution of an object in a furnace.
【０００２】[0002]
【従来の技術】ごみ焼却炉のようにストーカ上で焼却物
が燃焼する形式の炉において、安定な燃焼を確保するた
めにはストーカ上の焼却物の温度分布を計測すること及
び灰が溶融しない温度で運転することが重要となる。2. Description of the Related Art In a furnace in which incinerator burns on a stoker like a refuse incinerator, in order to ensure stable combustion, the temperature distribution of the incinerator on the stoker should be measured and ash should not melt. It is important to operate at temperature.
【０００３】従来は、ストーカ上の焼却物の温度を計測
するために、焼却炉頂部に取り付けられたＣＣＤカメラ
で撮影された映像の輝度から温度を推定していた。In the past, in order to measure the temperature of the incinerated material on the stoker, the temperature was estimated from the brightness of the image taken by the CCD camera attached to the top of the incinerator.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、ＣＣＤ
カメラで撮影された映像中には火炎も撮影されているた
め焼却物の映像を直接観察できないだけでなく、炉中の
燃焼ガスには塵埃が多量に含まれているため鮮明な映像
を撮影して焼却物の温度分布を正確に計測することは困
難であった。However, the CCD
In addition to not being able to directly observe the image of the incinerator because the image of the flame was also taken in the image taken by the camera, a clear image was taken because the combustion gas in the furnace contained a large amount of dust. It was difficult to measure the temperature distribution of the incineration accurately.
【０００５】本発明は上記課題に鑑みなされたものであ
って、炉内の対象物の絶対温度分布を測定することので
きる炉内温度分布測定装置及び方法を提供することを目
的とする。The present invention has been made in view of the above problems, and an object of the present invention is to provide a furnace temperature distribution measuring apparatus and method capable of measuring the absolute temperature distribution of an object in the furnace.
【０００６】[0006]
【課題を解決するための手段】第一の発明に係る炉内温
度分布測定装置及び方法は、炉内の対象物全体の相対温
度パターンを赤外線カメラにより計測し、対象物の少な
くとも一箇所の絶対温度を二波長温度計により計測し、
赤外線で計測された相対温度パターンと二波長温度計で
計測された少なくとも一箇所の絶対温度に基づいて対象
物全体の絶対温度パターンを決定する。A furnace temperature distribution measuring apparatus and method according to a first aspect of the present invention measure a relative temperature pattern of an entire object in a furnace with an infrared camera, and measure absolute temperature of at least one position of the object. Measure the temperature with a dual wavelength thermometer,
The absolute temperature pattern of the whole object is determined based on the relative temperature pattern measured by infrared rays and the absolute temperature of at least one location measured by the dual wavelength thermometer.
【０００７】第二の発明に係る炉内温度分布測定装置及
び方法は、赤外線カメラで対象物から放射される放射線
の第一の特定波長域の放射線を透過する第一のバンドパ
スフィルタを介して第一の相対温度パターン、及び第二
のバンドパスフィルタを介して第二の相対温度パターン
を計測し、第一の相対温度パターンと第二の相対温度パ
ターに基づいて対象物全体の絶対温度パターンを決定す
る。A furnace temperature distribution measuring apparatus and method according to a second aspect of the present invention include an infrared camera through a first bandpass filter which transmits radiation in a first specific wavelength range of radiation emitted from an object. The first relative temperature pattern, and the second relative temperature pattern is measured through the second bandpass filter, and the absolute temperature pattern of the entire object based on the first relative temperature pattern and the second relative temperature pattern. To decide.
【０００８】[0008]
【発明の実施の形態】図1は本発明に係る焼却炉内温度
分布測定装置の第一実施形態の構成図であって、ごみ焼
却炉１の炉頂部に設置される赤外線カメラ１１及び二波
長温度計１２、赤外線カメラ１１及び二波長温度計１２
の出力を合成して温度分布を算出する温度分布算出部１
３、並びに温度分布を表示する表示部１４から構成され
る。1 is a block diagram of a first embodiment of a temperature distribution measuring device in an incinerator according to the present invention, which is an infrared camera 11 and two wavelengths installed on the top of a refuse incinerator 1. Thermometer 12, infrared camera 11 and dual wavelength thermometer 12
Distribution calculator 1 that calculates the temperature distribution by combining the outputs of the
3 and a display unit 14 that displays the temperature distribution.
【０００９】ごみ焼却炉１においては、ごみはフィーダ
１０１からストーカ１０２上に供給され、ストーカ１０
２上で燃焼する。ストーカ１０２の斜め下方への移動に
伴い、ごみも燃焼しつつ斜め下方に移動し灰は焼却炉底
部から排出される。In the waste incinerator 1, the waste is supplied from the feeder 101 onto the stoker 102, and the stoker 10
Burn on 2. As the stalker 102 moves diagonally downward, dust also burns and moves diagonally downward, and ash is discharged from the bottom of the incinerator.
【００１０】赤外線カメラ１１はストーカ１０２上のご
み全体が視野に入るように調整されており、ごみの温度
分布パターンを計測する。The infrared camera 11 is adjusted so that the entire dust on the stoker 102 is in the field of view, and measures the temperature distribution pattern of the dust.
【００１１】しかし、赤外線カメラ１１で撮影された温
度分布パターンからは温度の相対的な相違を把握できる
ものの、絶対温度を決定することはできない。よって、
温度分布の一点の絶対温度を定めることができれば、ス
トーカ１０２上のごみの温度分布を決定することが可能
となる。However, although the relative difference in temperature can be grasped from the temperature distribution pattern taken by the infrared camera 11, the absolute temperature cannot be determined. Therefore,
If the absolute temperature at one point of the temperature distribution can be determined, it becomes possible to determine the temperature distribution of dust on the stalker 102.
【００１２】そこで、ストーカ１０２上のごみのある範
囲の絶対温度を決定するために二波長温度計１２を使用
する。Therefore, a dual wavelength thermometer 12 is used to determine the absolute temperature of a certain area of dust on the stoker 102.
【００１３】図２は二波長温度計の原理図であって、放
射率εの物体（ごみ）２０から放射され、透過率τのガ
ス２１中を伝播して温度計１２に到達する波長λのエネ
ルギ密度がＥ・ｄλで表されるとすれば、Ｅは［数１］
で表される。FIG. 2 is a principle diagram of a two-wavelength thermometer. The wavelength (λ) of the wavelength (λ) radiated from an object (dust) 20 having an emissivity ε and propagating in a gas 21 having a transmittance τ and reaching the thermometer 12. If the energy density is represented by E · dλ, then E is [Equation 1]
It is represented by.
【００１４】[0014]
【数１】 [Equation 1]
【００１５】このエネルギを温度計１２で検出するが、
温度計１２の内部には特定の二つの波長λ1及びλ2だけ
を通過させるバンドパスフィルタ１２１及び１２２が配
置され、このバンドパスフィルタ１２１及び１２２の背
後に焦電素子１２３及び１２４が配置されている。バン
ドパスフィルタ１２１及び１２２は焦電電子１２３及び
１２４の前面に配置されていればよく、赤外線カメラ１
１の内部外部は問わない。This energy is detected by the thermometer 12,
Inside the thermometer 12, band pass filters 121 and 122 that pass only two specific wavelengths λ 1 and λ 2 are arranged, and pyroelectric elements 123 and 124 are arranged behind the band pass filters 121 and 122. ing. The band pass filters 121 and 122 may be arranged in front of the pyroelectric electrons 123 and 124, and the infrared camera 1
The inside and outside of 1 does not matter.
【００１６】焦電素子１２３の出力電圧をＶ1、焦電素
子１２４の出力電圧をＶ2とすると、［数２］が成立す
る。When the output voltage of the pyroelectric element 123 is V 1 and the output voltage of the pyroelectric element 124 is V 2 , [Equation 2] is established.
【００１７】[0017]
【数２】 [Equation 2]
【００１８】即ち、焦電素子１２３の出力電圧をＶ1と
焦電素子１２４の出力電圧をＶ2の比Ｒはごみ２０の温
度Ｔに比例する。That is, the ratio R of the output voltage of the pyroelectric element 123 to V 1 and the output voltage of the pyroelectric element 124 to V 2 is proportional to the temperature T of the dust 20.
【００１９】従って、二波長温度計１２の測定範囲内の
ごみ２０の温度を熱電対温度計等によって較正しておけ
ば、以後は温度計１２０の出力である焦電素子出力電圧
比ｒによってごみの絶対温度が計測可能となる。Therefore, if the temperature of the dust 20 within the measuring range of the two-wavelength thermometer 12 is calibrated by a thermocouple thermometer or the like, the dust is hereafter calibrated by the output voltage ratio r of the pyroelectric element which is the output of the thermometer 120. The absolute temperature of can be measured.
【００２０】この二波長温度計１２によって計測される
ストーカ１０２上のごみの一箇所の絶対温度と、赤外線
カメラ１１で計測されるストーカ１０２上のごみ全体の
温度パターンとを温度分布算出部１３で合成することに
よりストーカ１０２上のごみ全体の絶対温度を表示部１
４に表示することが可能となる。The temperature distribution calculator 13 calculates the absolute temperature of the dust on the stoker 102 measured by the dual wavelength thermometer 12 and the temperature pattern of the dust on the stoker 102 measured by the infrared camera 11. By synthesizing, the absolute temperature of the entire garbage on the stoker 102 can be displayed on the display unit 1.
4 can be displayed.
【００２１】以上第一の実施形態にあっては、赤外線カ
メラ１１と二波長温度計１２の二種類の装置でごみの温
度を計測する必要がある。In the first embodiment described above, it is necessary to measure the temperature of dust with two types of devices, the infrared camera 11 and the dual wavelength thermometer 12.
【００２２】図３は本発明に係る焼却炉内温度分布測定
装置の第二実施形態の構成図であって、炉頂に設置され
た赤外線カメラ１１の前方に特定の二つの波長λ1及び
λ2だけを通過させるバンドパスフィルタ１５１及び１
５２を搭載した円盤１５が配置され、円盤１５は例えば
モータ１５３によって回転可能である。FIG. 3 is a block diagram of a second embodiment of the temperature distribution measuring apparatus in the incinerator according to the present invention, which shows two specific wavelengths λ 1 and λ in front of the infrared camera 11 installed at the furnace top. Bandpass filters 151 and 1 that pass only 2
A disk 15 on which 52 is mounted is arranged, and the disk 15 can be rotated by, for example, a motor 153.
【００２３】なお、バンドパスフィルタ１５１及び１５
２を搭載した円盤１５及びモータ１５３を赤外線カメラ
１１の内部に設置してもよい。The bandpass filters 151 and 15
The disk 15 on which 2 is mounted and the motor 153 may be installed inside the infrared camera 11.
【００２４】そして、まず波長λ1の放射線だけを通過
させるバンドパスフィルタ１５１を通して赤外線カメラ
１１で温度パターンＰ1を計測し、次に円盤１５を回転
して波長λ2の放射線だけを通過させるバンドパスフィ
ルタ１５２を通して赤外線カメラ１１で温度パターンＰ
2を計測する。Then, first, the infrared camera 11 measures the temperature pattern P 1 through the bandpass filter 151 which passes only the radiation of wavelength λ 1 , and then the disk 15 is rotated to pass the radiation of wavelength λ 2 only. The infrared camera 11 passes through the pass filter 152 to obtain a temperature pattern P.
Measure 2 .
【００２５】なお、温度パターンＰ1と温度パターンＰ2
の撮影時間間隔は温度パターンが変動しないと見なすこ
とができる時間間隔とすることが必要である。The temperature pattern P 1 and the temperature pattern P 2
It is necessary that the imaging time interval of is a time interval at which it can be considered that the temperature pattern does not change.
【００２６】赤外線カメラ１１は一種の放射温度計であ
るので、波長λ1の放射線だけを通過させるバンドパス
フィルタ１５１を通して撮影した温度パターンＰ1と、
波長λ2の放射線だけを通過させるバンドパスフィルタ
１５２を通して撮影した温度パターンＰ2の比をＲとす
れば［数３］が成立する。Since the infrared camera 11 is a kind of radiation thermometer, the temperature pattern P 1 photographed through the bandpass filter 151 that allows only the radiation of wavelength λ 1 to pass,
If the ratio of the temperature pattern P 2 photographed through the bandpass filter 152 that passes only the radiation of wavelength λ 2 is R, then [Equation 3] is established.
【００２７】[0027]
【数３】 [Equation 3]
【００２８】従って、ストーカ１０２上のごみの一箇所
の温度を例えば熱電対温度計で計測することにより、温
度パターン比Ｒからストーカ１０２上のごみ全体の絶対
温度を表示部１４に表示することが可能となる。Therefore, by measuring the temperature of the dust on the stalker 102 at one location with, for example, a thermocouple thermometer, the absolute temperature of the dust on the stalker 102 can be displayed on the display unit 14 from the temperature pattern ratio R. It will be possible.
【００２９】即ち、第二実施形態によれば、赤外線カメ
ラ１１で撮影した映像だけを使用してストーカ１０２上
のごみの絶対温度パターンを決定することが可能とな
る。That is, according to the second embodiment, it is possible to determine the absolute temperature pattern of dust on the stoker 102 by using only the image taken by the infrared camera 11.
【００３０】上記実施形態にあっては、赤外線カメラ及
び二波長温度計は炉頂に設置されているものとしたが、
ストーカ上のごみを撮影範囲に取り込むことができれば
設置場所は炉頂に限られず他の場所であってもよい。In the above embodiment, the infrared camera and the dual wavelength thermometer are installed on the furnace top.
The installation place is not limited to the furnace top as long as the dust on the stoker can be taken into the photographing range, and it may be another place.
【００３１】[0031]
【発明の効果】第一の発明に係る焼却炉内温度分布測定
装置及び方法によれば、赤外線カメラによって計測され
た相対温度パターンと二波長温度計によって計測された
少なくとも一箇所の絶対温度を合成することによって絶
対温度パターンを知ることが可能となる。According to the apparatus and method for measuring the temperature distribution in the incinerator according to the first aspect of the present invention, the relative temperature pattern measured by the infrared camera and the absolute temperature of at least one location measured by the dual wavelength thermometer are combined. By doing so, it is possible to know the absolute temperature pattern.
【００３２】第二の発明に係る焼却炉内温度分布測定装
置及び方法によれば、バンドパスフィルタを介して赤外
線カメラによって計測された少なくとも二つの相対温度
パターンを合成することによって絶対温度パターンを知
ることが可能となる。According to the apparatus and method for measuring the temperature distribution in the incinerator according to the second aspect of the invention, the absolute temperature pattern is known by synthesizing at least two relative temperature patterns measured by the infrared camera via the bandpass filter. It becomes possible.
【図１】本発明に係る焼却炉内温度分布測定装置の第一
実施形態の構成図である。FIG. 1 is a configuration diagram of a first embodiment of a temperature distribution measuring device in an incinerator according to the present invention.
【図２】二波長温度計の原理図である。FIG. 2 is a principle diagram of a dual wavelength thermometer.
【図３】本発明に係る焼却炉内温度分布測定装置の第二
実施形態の構成図であるFIG. 3 is a configuration diagram of a second embodiment of an incinerator temperature distribution measuring device according to the present invention.
１…焼却炉 １０１…フィーダ １０２…ストーカ １１…赤外線カメラ １２…二波長温度計 １３…温度分布算出部 １４…表示部 １５…円盤 １５１，１５２…バンドパスフィルタ １５３…モータ 1 ... Incinerator 101 ... Feeder 102 ... Stalker 11 ... Infrared camera 12 ... Two wavelength thermometer 13 ... Temperature distribution calculation unit 14 ... Display section 15 ... Disc 151, 152 ... Bandpass filter 153 ... Motor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高津戸 康弘 神奈川県横浜市金沢区幸浦一丁目８番地１ 三菱重工業株式会社横浜研究所内 Ｆターム(参考） 2G066 AA15 AB06 AC01 BA14 CA02 CA15 CB01 3K062 CA08 CB05 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yasuhiro Takatsudo 1-8 Koura, Kanazawa-ku, Yokohama-shi, Kanagawa Mitsubishi Heavy Industries Yokohama Research Center F-term (reference) 2G066 AA15 AB06 AC01 BA14 CA02 CA15 CB01 3K062 CA08 CB05
Claims (4)
計測する赤外線カメラと、 前記対象物の少なくとも一箇所の絶対温度を計測する二
波長温度計と、 前記赤外線カメラで計測された相対温度パターンと前記
二波長温度計で計測された少なくとも一箇所の絶対温度
に基づいて対象物全体の絶対温度パターンを決定する第
一の絶対温度パターン決定手段を具備する炉内温度分布
測定装置。1. An infrared camera for measuring a relative temperature pattern of an entire object in a furnace, a two-wavelength thermometer for measuring an absolute temperature of at least one location of the object, and a relative temperature measured by the infrared camera. An in-furnace temperature distribution measuring device comprising a first absolute temperature pattern determining means for determining an absolute temperature pattern of the entire object based on the pattern and the absolute temperature of at least one location measured by the two-wavelength thermometer.
計測する赤外線カメラと、 前記赤外線カメラの撮像素子の前方に配置され、対象物
から放射される放射線の少なくとも二つの特定波長域の
放射線を前記赤外線カメラに導くバンドパスフィルタ
と、 前記バンドパスフィルタを介して前記赤外線カメラによ
って計測された少なくとも二つの相対温度パターンに基
づいて対象物全体の絶対温度パターンを決定する第二の
絶対温度パターン決定手段を具備する炉内温度分布測定
装置。2. An infrared camera for measuring a relative temperature pattern of an entire object in a furnace, and a radiation arranged in front of an image pickup element of the infrared camera, the radiation being emitted from the object in at least two specific wavelength ranges. And a second absolute temperature pattern for determining an absolute temperature pattern of the entire object based on at least two relative temperature patterns measured by the infrared camera via the bandpass filter. An in-furnace temperature distribution measuring device having a determining means.
赤外線カメラにより計測する相対温度パターン計測段階
と、 前記対象物の少なくとも一箇所の絶対温度を二波長温度
計により計測する絶対温度計測段階と、 前記相対温度パターン計測段階で計測された相対温度パ
ターンと前記絶対温度計測手段で計測された少なくとも
一箇所の絶対温度に基づいて対象物全体の絶対温度パタ
ーンを決定する第一の絶対温度パターン決定段階を具備
する炉内温度分布測定方法。3. A relative temperature pattern measuring step of measuring a relative temperature pattern of an entire object in a furnace by an infrared camera, and an absolute temperature measuring step of measuring an absolute temperature of at least one position of the object by a two-wavelength thermometer. And a first absolute temperature pattern for determining an absolute temperature pattern of the entire object based on the relative temperature pattern measured in the relative temperature pattern measuring step and the absolute temperature of at least one location measured by the absolute temperature measuring means. A method for measuring temperature distribution in a furnace, which comprises a determining step.
定波長域の放射線を透過する第一のバンドパスフィルタ
を介して赤外線カメラで対象物全体の第一の相対温度パ
ターンを計測する第一の相対温度パターン計測段階と、 前記対象物から放射される放射線の第二の特定波長域の
放射線を透過する第二のバンドパスフィルタを介して前
記赤外線カメラで対象物全体の第二の相対温度パターン
を計測する第二の相対温度パターン計測段階と、 前記第一の相対温度パターン計測段階で計測された第一
の相対温度パターンと前記第二の相対温度パターン計測
段階で計測された第二の相対温度パターに基づいて対象
物全体の絶対温度パターンを決定する第二の絶対温度パ
ターン決定段階を具備する炉内温度分布測定方法。4. A method of measuring a first relative temperature pattern of an entire object with an infrared camera through a first bandpass filter that transmits radiation in a first specific wavelength range of radiation emitted from the object. One relative temperature pattern measurement step, the second relative of the entire object by the infrared camera through a second bandpass filter that transmits radiation in a second specific wavelength range of radiation emitted from the object A second relative temperature pattern measuring step of measuring a temperature pattern, a first relative temperature pattern measured in the first relative temperature pattern measuring step, and a second relative temperature pattern measuring step in the second relative temperature pattern measuring step. A method for measuring temperature distribution in a furnace, comprising a second absolute temperature pattern determining step of determining an absolute temperature pattern of the entire object based on the relative temperature pattern of the above.
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| JP2002124064A JP2003315156A (en) | 2002-04-25 | 2002-04-25 | Furnace temperature distribution measuring device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2002124064A JP2003315156A (en) | 2002-04-25 | 2002-04-25 | Furnace temperature distribution measuring device and method |
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| JP2003315156A true JP2003315156A (en) | 2003-11-06 |
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| JP2002124064A Withdrawn JP2003315156A (en) | 2002-04-25 | 2002-04-25 | Furnace temperature distribution measuring device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7237946B2 (en) * | 2003-10-28 | 2007-07-03 | Flir Systems Ab | Use of IR camera |
| WO2021038811A1 (en) * | 2019-08-29 | 2021-03-04 | 株式会社マクニカ | Impurity detection device, impurity detection method, and computer program |
-
2002
- 2002-04-25 JP JP2002124064A patent/JP2003315156A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7237946B2 (en) * | 2003-10-28 | 2007-07-03 | Flir Systems Ab | Use of IR camera |
| WO2021038811A1 (en) * | 2019-08-29 | 2021-03-04 | 株式会社マクニカ | Impurity detection device, impurity detection method, and computer program |
| JPWO2021038811A1 (en) * | 2019-08-29 | 2021-03-04 | ||
| JP7224478B2 (en) | 2019-08-29 | 2023-02-17 | 株式会社マクニカ | Impurity detection device, impurity detection method, and computer program |
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