JPS6155189A - Dry-distilation monitoring - Google Patents
Dry-distilation monitoringInfo
- Publication number
- JPS6155189A JPS6155189A JP17788984A JP17788984A JPS6155189A JP S6155189 A JPS6155189 A JP S6155189A JP 17788984 A JP17788984 A JP 17788984A JP 17788984 A JP17788984 A JP 17788984A JP S6155189 A JPS6155189 A JP S6155189A
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical fiber
- light source
- receiving element
- carbonization
- 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.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title 1
- 239000013307 optical fiber Substances 0.000 claims abstract description 29
- 238000003763 carbonization Methods 0.000 claims description 26
- 238000005259 measurement Methods 0.000 abstract description 14
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000000197 pyrolysis Methods 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000026407 Haya Species 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
Description
【発明の詳細な説明】
[技術分野]
本発明は、乾留塔内部のガス濃度を測定する乾留モニタ
に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a carbonization monitor that measures gas concentration inside a carbonization column.
[背景技術]
乾留塔内部のガスm度を測定する乾留モニタとしては、
第3図に示すものが知られている。[Background technology] As a carbonization monitor that measures the gas temperature inside the carbonization tower,
The one shown in FIG. 3 is known.
乾留塔10の側壁に、対向して2つの窓21゜22が設
けられている。窓21には、石英ガラス21aが嵌込ま
れ、塔内部11を密封するとともに透光できるようにし
である。石英ガラス21aの外側には、レンズ21b1
光源30が設けられている。光源30は、電線30aを
介して、計測制御部50から電力の供給を受けている。Two opposing windows 21 and 22 are provided on the side wall of the carbonization tower 10. A quartz glass 21a is fitted into the window 21 to seal the inside of the tower 11 and to allow light to pass through. A lens 21b1 is provided on the outside of the quartz glass 21a.
A light source 30 is provided. The light source 30 receives power from the measurement control section 50 via the electric wire 30a.
窓22にも、石英ガラス22aが嵌込まれ、塔内部11
を密封するとともに透光できるようにしである。石英ガ
ラス22aの外側には、レンズ22b、受光素子40が
設けられている。受光素子40は、電線40aを介して
、計測制御部50に出力信号を送っている。The window 22 is also fitted with quartz glass 22a, and the inside of the tower 11
It is designed to both seal and allow light to pass through. A lens 22b and a light receiving element 40 are provided on the outside of the quartz glass 22a. The light receiving element 40 sends an output signal to the measurement control section 50 via the electric wire 40a.
そして、光源30からの光は、塔内部11を通過した後
に、受光素子40i、:31する。ところで、塔内部1
1のガス濃度に応じて受光素子40における受光量が変
化するので、その受光量によって、ガス濃度を検出する
。The light from the light source 30 passes through the inside of the tower 11 and then passes through the light receiving elements 40i, :31. By the way, inside the tower 1
Since the amount of light received by the light receiving element 40 changes depending on the gas concentration of 1, the gas concentration is detected based on the amount of light received.
[背景技術の問題点]
上記従来例においては、受光素子40の野命が短いとい
う問題がある。すなわち、乾留塔1oの塔内部11は数
100度という高温であり、受光素子40が設けられて
いる窓22の近傍の温度も相当高い上に、受光素子40
自体の耐熱性が低いので、その受光素子40の寿命が短
くなる。[Problems with Background Art] The conventional example described above has a problem in that the lifespan of the light receiving element 40 is short. That is, the inside 11 of the carbonization tower 1o is at a high temperature of several hundred degrees, and the temperature near the window 22 where the light receiving element 40 is provided is also quite high.
Since the heat resistance itself is low, the life of the light receiving element 40 is shortened.
また、受光素子40から計測制御部50までの距離が通
常量いために、電線40aにおいて種々のノイズをびろ
うので、測定結果の信頼性が低下するという問題がある
。Further, since the distance from the light receiving element 40 to the measurement control unit 50 is usually long, various noises are absorbed in the electric wire 40a, which causes a problem that the reliability of the measurement results is reduced.
ざらには、光源30も耐熱性がそれ程高くないために、
光源30の寿命が短くなるという問題もある。In general, since the light source 30 also does not have very high heat resistance,
There is also the problem that the life of the light source 30 is shortened.
[発明の目的]
本発明は、受光素子の寿命を長くするとともに、ノイズ
の影響を除くことができる乾留モニタを提供することを
目的とするものである。[Object of the Invention] An object of the present invention is to provide a carbonization monitor that can extend the life of a light-receiving element and eliminate the influence of noise.
[発明の概要]
本発明は、乾留塔の内部を介して光源からの光を受光素
子が受け、その受光素子の出力信号に応じて、乾沼塔内
のガス濃度を測定する乾留モニタにおいて、乾留塔に2
つの窓を設け、一方の窓にコーナーキューブを設け、他
方の窓と受光素子との間を光ファイバで結んだものであ
る。[Summary of the Invention] The present invention provides a carbonization monitor in which a light-receiving element receives light from a light source through the interior of the carbonization tower, and measures the gas concentration in the carbonization tower according to the output signal of the light-receiving element. 2 in the carbonization tower
A corner cube is provided in one window, and an optical fiber is connected between the other window and the light receiving element.
[発明の実施例] 第1図は、本発明の一実施例を示す図である。[Embodiments of the invention] FIG. 1 is a diagram showing an embodiment of the present invention.
なお、第3図に示す部材と同一の部材については、同一
の符号を付して、その説明を省略する。Note that the same members as those shown in FIG. 3 are designated by the same reference numerals, and the description thereof will be omitted.
まず、計測制御部51は、窓21.22から相当離れて
いる。そして、計測制御部51の中に、光源31と受光
素子41とが設けられている。窓21.22と計測制御
部51との距離は、乾留塔10の作動時に受光索子41
または光源31が熱的に影響を受けない距離以上であれ
ばよい。First, the measurement control unit 51 is quite far away from the windows 21,22. A light source 31 and a light receiving element 41 are provided in the measurement control section 51. The distance between the windows 21 and 22 and the measurement control section 51 is determined by the distance between the windows 21 and 22 and the measurement control section 51.
Alternatively, the distance may be greater than the distance at which the light source 31 is not thermally affected.
窓21と光v131との間に、光ファイバ61が設けら
れている。光ファイバ61と光源31との間にはレンズ
31aが設けられている。An optical fiber 61 is provided between the window 21 and the light v131. A lens 31a is provided between the optical fiber 61 and the light source 31.
また、窓22と受光素子41との間に、光ファイバ62
が設けられている。光ファイバ62と受光素子41との
間にはレンズ418が設けられ、受光索子41の後に、
増幅器41bが設けられている。Further, an optical fiber 62 is connected between the window 22 and the light receiving element 41.
is provided. A lens 418 is provided between the optical fiber 62 and the light receiving element 41, and after the light receiving element 41,
An amplifier 41b is provided.
次に、上記実施例の動作について説明する。Next, the operation of the above embodiment will be explained.
まず、光源31からの光は、光ファイバ61を介して窓
21に達し、塔内部11および窓22を通過して光ファ
イバ62を経由して、受光索子41に到達する。このよ
うに、受光索子41および光源31が乾留塔10から離
れているので、それらは熱的な悪影替を受【プず、従来
よりも受光索子41および光源31の寿命が長くなると
いう利点がある。さらに、受光素子41を計測制御部5
1内に設置できるので、増幅器41b等の信号処理回路
と近くなるために、外部ノイズの影響を受は難くなる。First, light from the light source 31 reaches the window 21 via the optical fiber 61, passes through the tower interior 11 and the window 22, and reaches the light receiving cable 41 via the optical fiber 62. In this way, since the light receiving cord 41 and the light source 31 are separated from the carbonization tower 10, they are not subject to thermal adverse effects, and the life of the light receiving cord 41 and the light source 31 is longer than before. There is an advantage. Further, the light receiving element 41 is connected to the measurement control unit 5.
Since it can be installed within 1, it will be close to signal processing circuits such as the amplifier 41b, and will be less susceptible to external noise.
したがって、測定結果に対する信頼性が向上する。Therefore, the reliability of the measurement results is improved.
また、光ファイバ61を設けずに光源31を窓21に設
置し、受光素子41を乾留塔10から遠ざけるようにし
て、光ファイバ62を第1図のように設置するようにし
てもよい。このようにすることによって、光源31の寿
命は従来と変化がないものも、受光素子41の寿命が伸
びる点および外来ノイズに対して強くなる点は、上記実
施例と同じである。Alternatively, the light source 31 may be installed in the window 21 without providing the optical fiber 61, the light receiving element 41 may be moved away from the carbonization tower 10, and the optical fiber 62 may be installed as shown in FIG. By doing so, even though the life of the light source 31 remains the same as before, the life of the light receiving element 41 is extended and the light receiving element 41 becomes resistant to external noise, which is the same as in the above embodiment.
さらに、塔内部11の温度が所定値以上になると、その
塔内部11における赤外線の山が増大し、この赤外線が
直流ノイズとなって、受光素子41が検出する。これを
除去するには、ぞの直流成分を除去するようにすればよ
い。Furthermore, when the temperature inside the tower 11 exceeds a predetermined value, the peak of infrared rays inside the tower 11 increases, and this infrared ray becomes DC noise, which is detected by the light receiving element 41. In order to remove this, the DC component should be removed.
つまり、乾留塔1oに送る光を、ヂョッピングする(断
続的に供給する)光チヨツピング手段を設け、受光索子
41の出力信号をAC増幅するAC増幅器を設ける。こ
のようにすることによって、塔内部11で発生する直流
ノイズを除去できる。That is, an optical chopping means for chopping (intermittently supplying) the light sent to the carbonization tower 1o is provided, and an AC amplifier for AC amplifying the output signal of the light receiving cable 41 is provided. By doing so, DC noise generated inside the column 11 can be removed.
上記チョッピング手段を設ける位;ユは、光源31の直
後でもよく、光ファイバ61と窓21との間でもよい。The chopping means may be provided immediately after the light source 31 or between the optical fiber 61 and the window 21.
また、上記直流ノイズを除去するには、赤外線に対する
感度が低い特性を有する受光素子を使用するようにして
もよい。Further, in order to remove the above-mentioned DC noise, a light receiving element having characteristics of low sensitivity to infrared rays may be used.
第2図は、本発明の他の実施例を示す図である。FIG. 2 is a diagram showing another embodiment of the present invention.
窓21に、コーナーキューブ60が設けである。A corner cube 60 is provided in the window 21.
このコーナーキューブ60は、その取付は時に、多少の
平行ズレがあっても、必ず発光方向に反射する特性を有
するものである。また、光源32と受光素子42とは、
第1図の実施例と同様に、計測制御部52に設けられ、
この計測制御部52は乾留塔10から所定距離離れてい
る。This corner cube 60 has a characteristic that the light is always reflected in the light emitting direction even if there is some degree of parallel misalignment when the corner cube 60 is installed. Moreover, the light source 32 and the light receiving element 42 are
Similar to the embodiment shown in FIG. 1, the measurement control unit 52 is provided with
This measurement control section 52 is separated from the carbonization tower 10 by a predetermined distance.
そして、窓22と、受光素子42および光源32との間
には、光ファイバ63が設けられている。An optical fiber 63 is provided between the window 22, the light receiving element 42, and the light source 32.
また、光ファイバ63からの光を受光素子42に送ると
ともに、光源32からの光を光ファイバ63に送るハー
フミラ−52aが設けられている。Further, a half mirror 52a is provided that sends light from the optical fiber 63 to the light receiving element 42 and sends light from the light source 32 to the optical fiber 63.
第2図の実施例の場合、光ファイバは、1つだけ設置さ
れている。In the embodiment of FIG. 2, only one optical fiber is installed.
次に、この実施例の作用について説明する。Next, the operation of this embodiment will be explained.
まず、光源32で発生した光は、ハーフミラ52aで反
射した後に、光ファイバ63、窓22)塔内部11を通
過し、コーナーキューブ60で反射して、再び塔内部1
1、光ファイバ63を経由し、ハーフミラ52aを通過
し、受光索子42に到達する。First, the light generated by the light source 32 is reflected by the half mirror 52a, passes through the optical fiber 63, the window 22), the tower interior 11, is reflected by the corner cube 60, and is reflected again by the tower interior 11.
1. The light passes through the optical fiber 63, passes through the half mirror 52a, and reaches the light receiving cable 42.
乾留塔10に光を通過させる場合、1つの光ファイバ6
3で足りるために、光ファイバを2本使用する場合より
もコストが低くなるとともに、作業性が向上するという
利点がある。乾留塔10は非常に高温になるために、危
険度が高く、その設置作業は短時間で終了させる必要が
あるので、作業性の向上は意味のあることである。When passing light through the carbonization tower 10, one optical fiber 6
Since only three optical fibers are required, the cost is lower than when two optical fibers are used, and the workability is improved. Since the carbonization tower 10 reaches a very high temperature, it is highly dangerous, and the installation work needs to be completed in a short time, so improving workability is significant.
−上記ハーフミラ−52aの代わりに、二股を有する光
ファイバを使用してもよい、この場合、その二股の一方
の端面を光源32と対向させ、その二股の他方の端面を
受光索子42と対向させるようにすればよい。水明11
111においては、ハーフミラ−52aと、上記二股を
有する光ファイバとを、ビームスプリッタと呼ぶ。- Instead of the half mirror 52a, an optical fiber having two branches may be used. In this case, one end face of the two branches faces the light source 32, and the other end face of the two branches faces the light receiving cable 42. All you have to do is let it happen. Suimei 11
In No. 111, the half mirror 52a and the above-mentioned bifurcated optical fiber are called a beam splitter.
[発明の効果]
本発明は、乾留モニタにおける受光素子の寿命を長くす
ることができるとともに、ノイズの影響を除くことがで
きるという効果を有する。[Effects of the Invention] The present invention has the effect that the life of the light receiving element in the carbonization monitor can be extended, and the influence of noise can be eliminated.
第1図は本発明の一実施例を示す図、第2図は本発明の
他の実施例を示す図、第3図は従来例を示ず図である。
10・・・乾留塔、11・・・塔内部、2L 22・・
・窓、31.32・・・光源、41.42・・・受光素
子、51゜52・・・計測制御部、61,62.63・
・・光ファイバ。
特許出願人 株式会社ジャパン・センサー・−64′
!颯−
:−″Pリ
−H′〒
派FIG. 1 is a diagram showing one embodiment of the present invention, FIG. 2 is a diagram showing another embodiment of the present invention, and FIG. 3 is a diagram not showing a conventional example. 10... Carbonization tower, 11... Tower interior, 2L 22...
・Window, 31.32... Light source, 41.42... Light receiving element, 51° 52... Measurement control section, 61, 62.63.
...Optical fiber. Patent applicant: Japan Sensor Co., Ltd. -64'! Haya :-″P Lee-H′〒 faction
Claims (3)
および前記乾留塔の内部を介して前記光源からの光を受
ける受光素子とを有し、前記受光素子の出力信号に応じ
て、前記乾留塔内のガス濃度を測定する乾留モニタにお
いて、 一方の窓に設けたコーナーキューブと; 他方の窓と、前記受光素子および前記光源との間に設け
た1つの光ファイバと; この光ファイバからの光を前記受光素子に送るとともに
、前記光源からの光を前記光ファイバに送るビームスプ
リッタと; を有することを特徴とする乾留モニタ。(1) It has a light source, two windows provided in the carbonization tower, and a light-receiving element that receives light from the light source through the window and the inside of the carbonization tower, and responds to the output signal of the light-receiving element. In the carbonization monitor that measures the gas concentration in the carbonization tower, a corner cube provided in one window; an optical fiber provided between the other window and the light receiving element and the light source; A carbonization monitor comprising: a beam splitter that sends light from an optical fiber to the light receiving element and also sends light from the light source to the optical fiber.
徴とする乾留モニタ。(2) The carbonization monitor according to claim 1, wherein the beam splitter is a half mirror.
り、前記二股の一方の端面が前記光源と対向し、前記二
股の他方の端面が前記受光索子と対向していることを特
徴とする乾留モニタ。(3) In claim 1, the beam splitter is an optical fiber having two forks, one end face of the fork faces the light source, and the other end face of the fork faces the light receiving cable. A carbonization monitor characterized by facing each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17788984A JPS6155189A (en) | 1984-08-27 | 1984-08-27 | Dry-distilation monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17788984A JPS6155189A (en) | 1984-08-27 | 1984-08-27 | Dry-distilation monitoring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6155189A true JPS6155189A (en) | 1986-03-19 |
| JPH0149395B2 JPH0149395B2 (en) | 1989-10-24 |
Family
ID=16038829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17788984A Granted JPS6155189A (en) | 1984-08-27 | 1984-08-27 | Dry-distilation monitoring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6155189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6369142U (en) * | 1986-05-16 | 1988-05-10 |
-
1984
- 1984-08-27 JP JP17788984A patent/JPS6155189A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6369142U (en) * | 1986-05-16 | 1988-05-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0149395B2 (en) | 1989-10-24 |
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