JPH0634350Y2 - In-furnace pressure regulator for coke oven - Google Patents
In-furnace pressure regulator for coke ovenInfo
- Publication number
- JPH0634350Y2 JPH0634350Y2 JP1987010092U JP1009287U JPH0634350Y2 JP H0634350 Y2 JPH0634350 Y2 JP H0634350Y2 JP 1987010092 U JP1987010092 U JP 1987010092U JP 1009287 U JP1009287 U JP 1009287U JP H0634350 Y2 JPH0634350 Y2 JP H0634350Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel gas
- supply passage
- damper
- sensor
- flow rate
- 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.)
- Expired - Lifetime
Links
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- Coke Industry (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、燃料ガス供給路及び燃焼用空気供給路に、多
数の燃焼室に各別に備えられたバーナを並列接続し、前
記燃焼室の全てに集合煙道を接続し、前記燃焼室の全て
における炉内圧を調節するためのダンパーを前記集合煙
道に配置し、前記燃焼室の全てにおける炉内圧を設定範
囲に維持するように、設定器からの指令に基いて前記ダ
ンパーを自動操作する制御器を設けたコークス炉の炉内
圧調節装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a fuel gas supply passage and a combustion air supply passage, in which burners separately provided in a large number of combustion chambers are connected in parallel to each other. A connecting flue is connected to all, a damper for adjusting the furnace pressure in all of the combustion chambers is arranged in the flue, and the furnace pressure in all of the combustion chambers is set to maintain a set range. The present invention relates to a furnace pressure adjusting device for a coke oven provided with a controller for automatically operating the damper based on a command from the vessel.
従来、第２図に示すように、燃料ガス供給路（８）と燃
焼用空気供給路（９）に各別に設けた流量センサー（1
3），（14）、及び、入力器（21）で人為的に支持され
る燃料ガスの種類（例えば高炉ガス又はコークスガス）
に基いて、集合煙道（16）の内圧に対する制御目標値を
算出する演算手段（22a）、その演算手段（22a）からの
制御目標値をダンパー（17）に対するフィードバック式
制御器（20）に指示する出力手段（22b）を設定器（2
2）に設け、燃焼室（３）全ての炉内圧を、燃焼ガス吹
出しや大気吸入を制御するように大気圧に近い状態に維
持すべく構成すると共に、炉内圧制御構成を燃焼室
（３）に各別に設けるに比して大巾に簡単かつ安価にし
ていた。Conventionally, as shown in FIG. 2, a flow rate sensor (1) provided separately in a fuel gas supply passage (8) and a combustion air supply passage (9).
3), (14), and the type of fuel gas artificially supported by the input device (21) (for example, blast furnace gas or coke gas)
Based on the calculation means (22a) for calculating the control target value for the internal pressure of the flue (16), the control target value from the calculation means (22a) is fed to the feedback controller (20) for the damper (17). Setting means (2b)
2), the internal pressure of all combustion chambers (3) is configured to be maintained at a pressure close to atmospheric pressure so as to control the blowing of combustion gas and the intake of air, and the internal pressure control configuration of the combustion chambers (3) It was much simpler and cheaper than installing separately.
しかし、コークス炉で利用される燃料ガスは、例えば高
炉ガスやコークスガス等の組成変化の避けがたいもので
あるため、組成変化に伴う燃焼排ガス量の変動に起因し
て燃焼室（３）の炉内圧が変化しやすく、炉内圧制御に
おける精度面で一層の改良の余地があった。However, since the fuel gas used in the coke oven is inevitable for example, the composition change of the blast furnace gas, the coke gas, etc., the fluctuation of the combustion exhaust gas amount due to the composition change causes a change in the combustion chamber (3). The pressure inside the furnace was likely to change, and there was room for further improvement in terms of accuracy in controlling the pressure inside the furnace.
本考案の目的は、燃焼室の炉内圧制御における精度を、
十分にかつ確実に向上できるようにする点にある。The purpose of the present invention is to improve the accuracy in controlling the internal pressure of the combustion chamber.
The point is to be able to improve sufficiently and surely.
本考案の特徴構成は、多数の燃焼室に各別に設けたバー
ナに接続した燃料ガス供給路に、燃料ガスの組成を検出
するセンサーを設け、前記燃料ガス供給路及び前記バー
ナの全てに接続した燃焼用空気供給路の流量を検出する
センサー、並びに、前記燃料ガス組成検出用のセンサー
からの情報に基いて前記集合煙道における排ガス流量を
算出する演算手段、前記燃焼室から前記集合煙道までの
圧力損失と排ガス流量との特性関数を記憶させた記憶手
段、前記演算手段による算出値と前記記憶手段からの特
性関数に基いて、前記ダンパー自動操作用の制御器に付
与する指令値を自動的に決定する指令値設定手段を設定
器（19）に設けたことにあり、その作用効果は次の通り
である。A feature of the present invention is that a fuel gas supply passage connected to a burner provided in each of a number of combustion chambers is provided with a sensor for detecting the composition of fuel gas, and is connected to all of the fuel gas supply passage and the burner. A sensor for detecting the flow rate of the combustion air supply path, and a calculation means for calculating the exhaust gas flow rate in the collective flue based on the information from the sensor for detecting the fuel gas composition, from the combustion chamber to the collective flue Storage means for storing the characteristic function of the pressure loss and the exhaust gas flow rate, based on the calculated value by the calculating means and the characteristic function from the storage means, the command value to be given to the controller for the automatic damper operation is automatically The setting means (19) is provided with the command value setting means that is determined selectively, and the function and effect thereof are as follows.
つまり、燃料ガス及び燃焼用空気の流量をセンサーで検
出するばかりでなく、燃料ガスの組成を例えば組成分析
や発熱量検出などに基いてセンサーで検出し、燃料ガス
の流量と組成及び燃焼用空気の流量に基いて、かつ、予
め設定された演算式やアドレスに基いて、ダンパーの制
御器に例えば集合煙道の制御目標圧力範囲やダンパーの
開度などの指令値を指令値設定手段で求めさせ、その指
令値に従ってダンパーの開度調節を制御器で自動的に行
わせるのである。即ち検出値に基いて、排ガス流量が演
算手段により算出されるとともに、記憶手段に記憶され
た特性関数と算出された排ガス流量とにより、指令値が
指令値設定手段によって求められて、これが制御器に与
えられて、上記の制御が行われる。That is, not only the flow rate of the fuel gas and the combustion air is detected by the sensor, but also the composition of the fuel gas is detected by the sensor based on, for example, composition analysis or calorific value detection, and the flow rate and the composition of the fuel gas and the combustion air are detected. Based on the flow rate of, and based on a preset arithmetic expression or address, the damper controller obtains command values such as the control target pressure range of the flue gas and the opening degree of the damper by the command value setting means. Then, the controller automatically adjusts the damper opening according to the command value. That is, the exhaust gas flow rate is calculated by the calculating means based on the detected value, and the command value is obtained by the command value setting means by the characteristic function stored in the storage means and the calculated exhaust gas flow rate, and this is determined by the controller. And the above control is performed.
したがって、燃料ガスや燃焼用空気の流量変化に伴う燃
料ガス発生量の変動のみならず、燃料ガスの組成変化に
伴う燃料ガス発生量の変動にも対処でき、たとえ高炉ガ
スやコークスガスに燃料ガスの種類が変えられても、ま
た、不測に燃料ガスの組成が変化しても、集合煙道のダ
ンパーの自動開度調節で多数の燃焼室の炉内圧調整を確
実に精度良く行えるようになった。Therefore, it is possible to cope not only with the fluctuation of the fuel gas generation amount due to the change of the flow rate of the fuel gas or the combustion air but also with the fluctuation of the fuel gas generation amount due to the change of the composition of the fuel gas. Even if the type of fuel is changed or the composition of the fuel gas is changed unexpectedly, the internal pressure of multiple combustion chambers can be reliably and accurately adjusted by automatically adjusting the damper opening of the flue gas. It was
その結果、コークス炉における多数の燃焼室の炉内圧制
御を、そのための構成を簡単にしながら、常に十分にか
つ確実に精度良好に行え、燃焼ガス吹出しや大気吸入を
十分に制御して、熱効率良好にコークス及びコークガス
を製造できるようになった。As a result, it is possible to control the internal pressure of multiple combustion chambers in a coke oven with sufficient accuracy at all times, while simplifying the structure for that purpose. It became possible to produce coke and coke gas.
ここで一般に、コークス炉においては、燃料ガスや燃焼
用空気の供給量は従来より何らかの手法で検知されると
ともに制御されているため、そのための装置制御系を備
えているが、本願においては、この系に燃料ガス組成検
出用のセンサー、演算手段、記憶手段、指令値設定手段
を備えるだけの簡単な構成付加により、従来より確度高
い良好な制御が行える。Here, generally, in the coke oven, since the supply amounts of the fuel gas and the combustion air are detected and controlled by some method conventionally, a device control system therefor is provided. By adding a simple configuration in which the system is provided with a sensor for fuel gas composition detection, a calculation means, a storage means, and a command value setting means, good control can be performed with higher accuracy than before.
次に、第１図により実施例を示す。 Next, FIG. 1 shows an embodiment.
炉体（１）内に多数の炭化室（２）と燃焼室（３）を交
互に配置して形成し、炭化室（２）の夫々に接続された
上昇管（４）の全てをドライメイン（５）に接続し、燃
焼室（３）からの熱による石炭の乾留によって生成した
コークスガスを、ドライメイン（５）からガス精製設備
（６）に送るように構成してある。In the furnace body (1), a large number of carbonization chambers (2) and combustion chambers (3) are alternately arranged and formed, and all of the rising pipes (4) connected to the respective carbonization chambers (2) are dry-mained. It is connected to (5) and is configured to send coke gas produced by dry distillation of coal by heat from the combustion chamber (3) from the dry main (5) to the gas purification facility (6).
燃焼室（３）夫々に設けたバーナ（７）を燃料ガス供給
路（８）とブロワー（Ｂ）からの燃焼用空気供給路
（９）に並列接続し、燃料ガス供給路（８）に、高炉ガ
ス供給設備（10）とコークスガス供給設備（11）に択一
接続するための弁（V1），（V2）、組成分析器（12）、
流量検出用センサー（13）を設け、燃焼用空気供給路
（９）に流量検出用センサー（14）を設けてある。The burner (7) provided in each combustion chamber (3) is connected in parallel to the fuel gas supply passage (8) and the combustion air supply passage (9) from the blower (B), and the burner (7) is connected to the fuel gas supply passage (8). Valves (V 1 ) and (V 2 ) for selectively connecting the blast furnace gas supply equipment (10) and the coke gas supply equipment (11), the composition analyzer (12),
A flow rate detecting sensor (13) is provided, and a flow rate detecting sensor (14) is provided in the combustion air supply passage (9).
煙突（15）に接続した集合煙道（16）を燃焼室（３）の
全てに接続し、燃焼室（３）の全てにおける炉内圧を調
節するためのダンパー（17）を集合煙道（16）に設け、
集合煙道（16）の圧力を検出するセンサー（18）と設定
器（19）からの情報に基いてダンパー（17）を自動操作
する制御器（20）を設けてある。The collective flue (16) connected to the chimney (15) is connected to all the combustion chambers (3), and the damper (17) for adjusting the furnace pressure in all the combustion chambers (3) is provided with the collective flue (16). ),
A sensor (18) for detecting the pressure in the collecting flue (16) and a controller (20) for automatically operating the damper (17) based on information from the setting device (19) are provided.
燃料ガスの組成分析器（12）、燃料ガス流量検出用のセ
ンサー（13）、燃焼用空気供給量検出用のセンサー（1
4）からの情報に基いて集合煙道（16）における排ガス
流量を算出する演算手段（19a）、燃焼室（３）から集
合煙道（16）までの圧力損失と排ガス流量との特性関数
を記憶させた記憶手段（19b）、演算手段（19a）による
算出値と記憶手段（19b）からの特性関数に基いて、制
御器（20）に指令する圧力範囲を決定する指令値設定手
段（19c）を設定器（19）に設け、燃焼室（３）の全て
における炉内圧をほぼ大気圧に維持すべくダンパー（1
7）を自動操作するように構成してある。Fuel gas composition analyzer (12), fuel gas flow rate detection sensor (13), combustion air supply amount detection sensor (1
The calculation means (19a) for calculating the exhaust gas flow rate in the collective flue (16) based on the information from 4), and the characteristic function of the pressure loss from the combustion chamber (3) to the collective flue (16) and the exhaust gas flow rate. Command value setting means (19c) for determining the pressure range to be commanded to the controller (20) based on the stored storage means (19b), the calculated value by the calculation means (19a) and the characteristic function from the storage means (19b). ) Is installed in the setting device (19), and the damper (1
7) is configured to be automatically operated.
次に別実施例を説明する。 Next, another embodiment will be described.
燃料ガスの組成分析器（12）に替えて発熱量測定器など
の燃料ガスの組成変化を検知できる手段を設けてもよ
く、それらを、燃料ガスの組成を検出するセンサー（1
2）と総称する。The fuel gas composition analyzer (12) may be replaced with a calorific value measuring device or other means capable of detecting a change in the composition of the fuel gas, and a sensor for detecting the composition of the fuel gas (1
2) collectively.
演算手段（19a）と記憶手段（19b）の組合せに替えて、
燃料ガスの組成や発熱量と燃料ガス流量と燃焼用空気流
量と集合煙道（16）での設定圧力範囲の相関を記憶させ
たROMを設けてもよく、要するにセンサー（12），（1
3），（14）からの情報に基いて指令値設定手段（19c）
に必要な情報を付与できるように設定器（19）を構成し
てあればよい。Instead of the combination of the calculation means (19a) and the storage means (19b),
A ROM may be provided which stores the correlation between the composition and heat generation amount of the fuel gas, the flow rate of the fuel gas, the flow rate of the combustion air, and the set pressure range of the flue gas stack (16), in short, the sensors (12), (1
Command value setting means (19c) based on information from 3) and (14)
The setting device (19) may be configured so that necessary information can be added to the setting device (19).
指令値設定手段（19c）から制御器（20）にダンパー（1
7）の開度を指令値として付与するように構成してもよ
い。From the command value setting means (19c) to the controller (20), the damper (1
The opening degree of 7) may be given as a command value.
燃料ガスと燃焼用空気の供給量を比例制御する手段を設
けて、流量検出用のセンサー（13），（14）の一方を省
略してもよい。One of the flow rate detecting sensors (13) and (14) may be omitted by providing means for proportionally controlling the supply amounts of the fuel gas and the combustion air.
燃料ガスの種類や供給源は適当に選択できる。The type and supply source of fuel gas can be appropriately selected.
ダンパー（17）の具体構造、駆動構成は適当に変更でき
る。The concrete structure and drive structure of the damper (17) can be changed appropriately.
第１図は本考案の実施例を示す概念図、第２図は従来例
を示す概念図である。 （３）……燃焼室、（７）……バーナ、（８）……燃料
ガス供給路、（９）……燃焼用空気供給路、（12）……
燃料ガス組成検出用センサー、（13），（14）……流量
検出用センサー、（16）……集合煙道、（17）……ダン
パー、（19）……設定器、（19c）……指令値設定手
段、（20）……ダンパー用制御器。FIG. 1 is a conceptual diagram showing an embodiment of the present invention, and FIG. 2 is a conceptual diagram showing a conventional example. (3) …… Combustion chamber, (7) …… Burner, (8) …… Fuel gas supply passage, (9) …… Combustion air supply passage, (12) ……
Fuel gas composition detection sensor, (13), (14) …… Flow rate detection sensor, (16) …… Collecting flue, (17) …… Damper, (19) …… Setting device, (19c) …… Command value setting means, (20) ...... Damper controller.
Claims (1)
路（９）に、多数の燃焼室（３）に各別に備えられたバ
ーナ（７）を並列接続し、前記燃焼室（３）の全てに集
合煙道（16）を接続し、前記燃焼室（３）の全てにおけ
る炉内圧を調節するためのダンパー（17）を前記集合煙
道（16）に配置し、前記燃焼室（３）の全てにおける炉
内圧を設定範囲に維持するように、設定器（19）からの
指令に基いて前記ダンパー（17）を自動操作する制御器
（20）を設けたコークス炉の炉内圧調節装置であって、
前記燃料ガス供給路（８）に燃料ガスの組成を検出する
センサー（12）を設け、前記燃料ガス供給路（８）及び
燃焼用空気供給路（９）の流量を検出するセンサー（1
3），（14）、並びに、前記燃料ガス組成検出用のセン
サー（12）からの情報に基いて前記集合煙道（16）にお
ける排ガス流量を算出する演算手段（19a）、前記燃焼
室（３）から前記集合煙道（16）までの圧力損失と排ガ
ス流量との特性関数を記憶させた記憶手段（19b）、前
記演算手段（19a）による算出値と前記記憶手段（19b）
からの特性関数に基いて、前記ダンパー自動操作用の制
御器（20）に対する指令値を自動的に決定する指令値設
定手段（19c）を前記設定器（19）に設けてあるコーク
ス炉の炉内圧調節装置。1. A burner (7) separately provided in a large number of combustion chambers (3) is connected in parallel to the fuel gas supply passage (8) and the combustion air supply passage (9), and the combustion chamber (3) is provided. ) Is connected to the collecting flue (16), and a damper (17) for adjusting the furnace pressure in all the combustion chambers (3) is arranged in the collecting flue (16), In order to maintain the in-furnace pressure in all of 3) within the set range, the coke oven pressure control is provided with a controller (20) that automatically operates the damper (17) based on a command from the setter (19). A device,
A sensor (12) for detecting the composition of the fuel gas is provided in the fuel gas supply passage (8), and a sensor (1) for detecting the flow rates of the fuel gas supply passage (8) and the combustion air supply passage (9).
3), (14), and an arithmetic means (19a) for calculating the flow rate of exhaust gas in the collective flue (16) based on information from the sensor (12) for detecting the fuel gas composition, the combustion chamber (3) ) To the collecting flue (16) and storage means (19b) storing characteristic functions of exhaust gas flow rate, calculated value by the calculating means (19a) and the storage means (19b).
A coke oven furnace provided with command value setting means (19c) for automatically determining a command value for the controller (20) for automatic damper operation based on the characteristic function from Internal pressure regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987010092U JPH0634350Y2 (en) | 1987-01-26 | 1987-01-26 | In-furnace pressure regulator for coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987010092U JPH0634350Y2 (en) | 1987-01-26 | 1987-01-26 | In-furnace pressure regulator for coke oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63119641U JPS63119641U (en) | 1988-08-02 |
| JPH0634350Y2 true JPH0634350Y2 (en) | 1994-09-07 |
Family
ID=30796069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987010092U Expired - Lifetime JPH0634350Y2 (en) | 1987-01-26 | 1987-01-26 | In-furnace pressure regulator for coke oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634350Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007008979A (en) * | 2005-06-28 | 2007-01-18 | Jfe Steel Kk | Method for feeding fuel gas into coke oven and mixer for fuel gas |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6079091A (en) * | 1983-10-07 | 1985-05-04 | Kawasaki Steel Corp | Control of flue pressure in coke oven |
-
1987
- 1987-01-26 JP JP1987010092U patent/JPH0634350Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007008979A (en) * | 2005-06-28 | 2007-01-18 | Jfe Steel Kk | Method for feeding fuel gas into coke oven and mixer for fuel gas |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63119641U (en) | 1988-08-02 |
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