JP4168561B2 - Control method for boiler multi-can installation system - Google Patents

Control method for boiler multi-can installation system Download PDF

Info

Publication number
JP4168561B2
JP4168561B2 JP36616799A JP36616799A JP4168561B2 JP 4168561 B2 JP4168561 B2 JP 4168561B2 JP 36616799 A JP36616799 A JP 36616799A JP 36616799 A JP36616799 A JP 36616799A JP 4168561 B2 JP4168561 B2 JP 4168561B2
Authority
JP
Japan
Prior art keywords
fuel
boiler
boilers
normal
required load
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
Application number
JP36616799A
Other languages
Japanese (ja)
Other versions
JP2001182902A (en
Inventor
一信 井上
理 宮内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miura Co Ltd
Original Assignee
Miura Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miura Co Ltd filed Critical Miura Co Ltd
Priority to JP36616799A priority Critical patent/JP4168561B2/en
Publication of JP2001182902A publication Critical patent/JP2001182902A/en
Application granted granted Critical
Publication of JP4168561B2 publication Critical patent/JP4168561B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Description

【0001】
【発明の属する技術分野】
この発明は、可燃性廃棄物を燃料として再利用するボイラの多缶設置システムの制御方法に関するものである。
【0002】
【従来の技術】
醗酵製品や醸造製品等の製造施設や、微生物によって生ごみを分解するゴミ処理施設などにおいては、醗酵,醸造または分解の過程で消化ガスと呼ばれる廃棄物が発生する。この消化ガスは、メタンを主成分とする可燃性ガスである。そのため、このような施設では、消化ガスをボイラの燃料として用い、蒸気や温水を発生させたり、さらには発生させた蒸気を用いて発電するなどして、消化ガスを処分するとともに、エネルギーとして回収している。
【0003】
ところで、前記のような製造施設やごみ処理施設などでは、これらの施設へ熱源としての蒸気や温水などを供給するため、灯油や都市ガスのような通常燃料を燃焼させるボイラ(以下、「通常ボイラ」という)が設置されている。したがって、前記のような施設においては、通常ボイラに加えて、消化ガスを燃焼させるための専用のボイラを設置しているのが現状である。しかも、前記のような施設では、規模が大きくなるほど、これらのボイラが多く必要になってくる。また、消化ガスの発生量は変動するため、消化ガスの発生量に合わせてボイラを設置すると、消化ガスの発生がないときには、これらのボイラは停止状態となってしまうため、ボイラ全体としては効率的な運転ができない。
【0004】
【発明が解決しようとする課題】
この発明は、消化ガスのような可燃性廃棄物の量にかかわらず、全ボイラを効率よく運転することができ、しかも可燃性廃棄物を燃焼させるための専用のボイラを不要としたボイラの多缶設置システムの制御方法を提供することを目的としている。
【0005】
【課題を解決するための手段】
この発明は、前記課題を解決するためになされたもので、請求項1に記載の発明は、可燃性廃棄物と通常燃料とを燃焼させる多種燃料ボイラと通常燃料を燃焼させる通常ボイラとで構成した多缶設置システムにおいて、可燃性廃棄物の貯留量に応じて前記多種燃料ボイラを台数制御するとともに、要求負荷に応じて前記多種燃料ボイラおよび前記通常ボイラを台数制御することを特徴としている。
【0006】
【課題を解決するための手段】
請求項2に記載の発明は、前記可燃性廃棄物の貯留量に応じた台数制御を前記要求負荷に応じた台数制御より優先させて行うことを特徴としている。
【0008】
【発明の実施の形態】
以下、この発明の実施の形態について説明する。この発明は、可燃性廃棄物を燃料として再利用し、可燃性廃棄物の処分と熱源の供給とを行うボイラの多缶設置システムおよびその制御方法として好適に実施される。ここで、可燃性廃棄物とは、醗酵過程または醸造過程や微生物によって生ごみを分解する際に発生する消化ガス,アルコールの蒸留過程において発生する低濃度アルコールなどである。また、この可燃性廃棄物は、乾留炉や半乾留炉などによって、産業廃棄物や生ごみ等から発生させた可燃性のガス,いわゆる乾留ガスを含む。したがって、この発明のボイラの多缶設置システムは、醗酵製品や醸造製品の製造施設,蒸留施設,ゴミ処理施設などにおいて使用される。
【0009】
まず、この発明に係るボイラの多缶設置システムは、可燃性廃棄物と通常燃料とを燃焼させる多種燃料ボイラと通常燃料を燃焼させる通常ボイラとで構成する。前記多種燃料ボイラは、可燃性廃棄物および通常燃料を択一的または同時に燃焼させるボイラである。また、前記通常ボイラは、通常燃料を燃焼させるボイラである。ここで、通常燃料とは、重油,軽油,灯油などの液体燃料や都市ガス,プロパンなどのガス燃料のような一般的な燃料をいう。
【0010】
前記多缶設置システムにおいて、前記多缶設置システム全体でのボイラの設置台数は、必要とされる負荷に応じて設定し、そのうちの前記多種燃料ボイラの設置台数は、発生する可燃性廃棄物の量に応じて設定する。そして、前記多種燃料ボイラは、可燃性廃棄物と通常燃料とが択一的または同時に供給されるように構成し、前記通常ボイラは、通常燃料が供給されるように構成する。さらに、前記多種燃料ボイラおよび前記通常ボイラは、共通の蒸気ヘッダまたは温水ラインに接続する。ここで、前記のような施設においては、発生した可燃性廃棄物の貯留設備を備えており、この貯留設備から前記多種燃料ボイラへ可燃性廃棄物が供給される。
【0011】
前記構成により、この発明に係るボイラの多缶設置システムにおいては、前記貯留設備における可燃性廃棄物の貯留量が少ないとき、前記多種燃料ボイラを通常ボイラとして使用することができる。そのため、可燃性廃棄物の貯留量にかかわらず、全ボイラを効率よく運転することができる。しかも、可燃性廃棄物を燃焼させるための専用のボイラを設置する必要がなくなり、ボイラの総設置台数を削減することができる。
【0012】
つぎに、この発明に係るボイラの多缶設置システムの制御方法について説明する。前記多缶設置システムにおいては、前記可燃性廃棄物の貯留設備に貯留量検出手段を設け、また前記蒸気ヘッダや前記温水ラインなどに前記多缶設置システムに対する要求負荷の検出手段を設け、可燃性廃棄物の貯留量に応じて前記多種燃料ボイラを台数制御するとともに、前記多缶設置システムに対する要求負荷に応じて前記多種燃料ボイラおよび前記通常ボイラを台数制御する。
【0013】
すなわち、可燃性廃棄物の貯留量に応じて前記多種燃料ボイラの起動台数を決定し、この多種燃料ボイラを可燃性廃棄物を燃焼させるボイラとする。そして、要求負荷に応じた台数の前記多種燃料ボイラを起動させる。このとき、前記多種燃料ボイラの起動台数が要求負荷に応じた台数に足りない場合には、不足する台数分の通常ボイラを起動させる。また、全台数の通常ボイラが起動しており、かつ所定台数の多種燃料ボイラが停止している状態において、前記多種燃料ボイラおよび前記通常ボイラの起動台数が要求負荷に応じた台数に足りない場合には、停止中の多種燃料ボイラを通常燃料を燃焼させるボイラとして起動させる。そして、負荷が減少すれば、通常燃料を燃焼させている多種燃料ボイラを停止させ、さらに負荷が減少するにつれて通常ボイラを1台ずつ順に停止させる。
【0014】
また、要求負荷が安定している場合、可燃性廃棄物の貯留量が増加すれば、可燃性廃棄物を燃焼させている多種燃料ボイラの起動台数を増加させ、逆に可燃性廃棄物の貯留量が減少すれば、可燃性廃棄物を燃焼させている多種燃料ボイラの起動台数を減少させる。そして、前記多缶設置システム全体への要求負荷に応じて前記多種燃料ボイラおよび前記通常ボイラのそれぞれの起動台数を増減させる。すなわち、この発明に係る多缶設置システムの制御方法においては、可燃性廃棄物の貯留量に応じて、前記多種燃料ボイラを可燃性廃棄物を燃焼させるボイラとして起動させ、また前記多種燃料ボイラを通常燃料を燃焼させるボイラとして起動させる。
【0015】
さらに、この発明に係るボイラの多缶設置システムの制御方法においては、可燃性廃棄物の貯留量に応じた台数制御を要求負荷に応じた台数制御より優先させて行う。すなわち、可燃性廃棄物の処分を優先させて行うように制御しているため、可燃性廃棄物の貯留量の変動に応じて可燃性廃棄物を安定して処分することができ、しかも前記多缶設置システム全体で過不足なく蒸気や温水を発生することができる。
【0016】
【実施例】
以下、この発明をビールの醸造工場において実施した場合の一実施例について図1を参照しながら説明する。図1は、この発明の第一実施例の概略構成を示す説明図である。
【0017】
図1において、ボイラの多缶設置システムは、所定台数の多種燃料ボイラ1,1と所定台数の通常ボイラ2,2,…とで構成されている。前記各多種燃料ボイラ1の設置台数は、醸造工場における可燃性廃棄物,すなわち消化ガスの発生量に応じて設定されており、また前記各多種燃料ボイラ1および前記各通常ボイラ2の設置台数の合計は、前記多缶設置システム全体での要求負荷に応じて設定されている。この実施例における多缶設置システムは、2台の多種燃料ボイラ1と3台の通常ボイラ2の計5台のボイラで構成されている。ここで、この実施例においては、前記各多種燃料ボイラ1および前記各通常ボイラ2のそれぞれにおけるボイラ1台当たりの負荷量は同じとしてある。
【0018】
前記各多種燃料ボイラ1は、この実施例においては、可燃性廃棄物および通常燃料のいずれか一方を燃焼させるように構成されている。したがって、前記各多種燃料ボイラ1には、消化ガスの貯留設備(以下、「ガスホルダ」という)3からの消化ガスライン4と通常燃料ライン5とがそれぞれ接続されている。一方、前記各通常ボイラ2には、前記通常燃料ライン5がそれぞれ接続されている。
【0019】
また、前記各多種燃料ボイラ1および前記各通常ボイラ2には、蒸気ライン6がそれぞれ接続されている。これらの蒸気ライン6は、途中で合流させるなどして、共通の蒸気ヘッダ7に接続されている。この蒸気ヘッダ7には、蒸気使用設備(図示省略)への給蒸ライン8が接続されている。
【0020】
前記各多種燃料ボイラ1および前記各通常ボイラ2は、それぞれ制御器9,9,…を備えている。これらの各制御器9は、有線または無線による通信回線10を介して多缶設置システムとしての制御装置,すなわち台数制御装置11に接続されている。一方、前記ガスホルダ3には、消化ガスの貯留量検出手段12が設けられている。また、前記蒸気ヘッダ7には、負荷検出手段としての圧力検出手段13が設けられている。そして、前記貯留量検出手段12および前記圧力検出手段13は、回線14を介して前記台数制御装置11にそれぞれ接続されている。
【0021】
前記台数制御装置11は、前記貯留量検出手段12および前記圧力検出手段13からのそれぞれの検出信号に基づいて前記各多種燃料ボイラ1の起動台数および前記各通常ボイラ2の起動台数を制御するように構成されている。
【0022】
つぎに、前記台数制御装置11における制御内容について、消化ガスの貯留量の変動がなく、要求負荷が増減した場合と、要求負荷の変動がなく、消化ガスの貯留量の変動が増減した場合とに分けて具体的に説明する。ここで、前記各多種燃料ボイラ1の優先順位は、前記各通常ボイラ2の優先順位よりも高く設定してある。
【0023】
まず、消化ガスの貯留量の変動がなく、要求負荷が増減した場合の制御内容について説明する。まず、前記ガスホルダ3内の消化ガスの貯留量が大量である場合、前記台数制御装置11は、前記貯留量検出手段12からの検出信号に基づいて消化ガスを燃焼させる多種燃料ボイラ1の起動台数を全台数,すなわち2台と決定する。また、前記台数制御装置11は、前記圧力検出手段13からの検出信号に基づいて前記多缶設置システム全体での起動台数を決定し、この起動台数分のボイラを起動させる。
【0024】
まず、要求負荷がボイラ1台分のとき、前記台数制御装置11は、前記各多種燃料ボイラ1のうち優先順位が一番高い多種燃料ボイラ1を消化ガスを燃焼させるボイラとして起動させる。そして、要求負荷がボイラ2台分に増加すると、前記台数制御装置11は、この要求負荷の増加に応じて前記各多種燃料ボイラ1のうちつぎの優先順位の多種燃料ボイラ1を消化ガスを燃焼させるボイラとして起動させる。以下、要求負荷が増加すると、前記台数制御装置11は、この要求負荷の増加に応じて前記各通常ボイラ2を優先順位が高い順に1台ずつ起動させる。
【0025】
そして、要求負荷がボイラ5台分のときは、前記各多種燃料ボイラ1および前記各通常ボイラ2が全台数起動した状態となる。この状態から要求負荷が減少すると、まず前記各通常ボイラ2を優先順位が低い順に1台ずつ停止させ、つぎに消化ガスを燃焼させている前記各多種燃料ボイラ1を優先順位が低い順に1台ずつ停止させる。
【0026】
つぎに、前記ガスホルダ3内の消化ガスの貯留量が中程度の場合について説明する。この場合、前記台数制御装置11は、消化ガスの貯留量に基づいて前記各多種燃料ボイラ1の起動台数を1台と決定する。そして、要求負荷がボイラ1台分のとき、前記各多種燃料ボイラ1のうち優先順位が一番高い多種燃料ボイラ1を消化ガスを燃焼させるボイラとして起動させる。そして、要求負荷がボイラ2台分に増加すると、前記台数制御装置11は、前記各通常ボイラ2のうち優先順位が一番高い通常ボイラ2を起動させる。
【0027】
以下、要求負荷が増加すると、前記台数制御装置11は、要求負荷の増加に応じて前記各通常ボイラ2を優先順位が高い順に1台ずつ起動させる。そして、要求負荷がボイラ4台分に増加すると、1台の多種燃料ボイラ1と全台数の通常燃料ボイラ2が起動した状態となる。
【0028】
そして、要求負荷が5台分に増加すると、前記台数制御装置11は、停止中の多種燃料ボイラ1を通常燃料を燃焼させるボイラとして起動させる。この状態から要求負荷が減少すると、前記台数制御装置11は、まず通常燃料を燃焼させてている多種燃料ボイラ1を停止させ、この後は、要求負荷の減少に応じて前記各通常ボイラ2を優先順位が低い順に1台ずつ減少させ、最後に消化ガスを燃焼させている多種燃料ボイラ1を停止させる。
【0029】
さらに、前記ガスホルダ3内の消化ガスの貯留量が少ないか、またはほとんどない場合について説明する。この場合、前記台数制御装置11は、消化ガスの貯留量に基づいて前記各多種燃料ボイラ1の起動台数を0台と決定する。そして、要求負荷がボイラ1台分のとき、前記各通常ボイラ2のうち優先順位が一番高い通常ボイラ2を起動させる。以後、要求負荷の増加に応じて前記各通常ボイラ2を優先順位が高い順に1台ずつ起動させる。
【0030】
そして、負荷要求がボイラ3台分に増加すると、前記各通常ボイラ2が全台数起動した状態となる。この状態から、さらに要求負荷が増加すると、前記台数制御装置11は、前記各多種燃料ボイラ1を優先順位が高い順に通常燃料を燃焼させるボイラとして1台ずつ起動させる。
【0031】
そして、要求負荷がボイラ5台分に増加すると、多種燃料ボイラ1の全台数が通常燃料を燃焼させるボイラとして起動し、また通常ボイラ2の全台数が起動した状態となる。この状態から要求負荷が減少すると、まず通常燃料を燃焼させている多種燃料ボイラ1を優先順位が低い順に1台ずつ停止させ、この後は、要求負荷の減少に応じて前記各通常ボイラ2を優先順位が低い順に1台ずつ停止させる。
【0032】
つぎに、要求負荷の変動がなく、消化ガスの貯留量が増減した場合の制御内容について説明する。ここで、以下の説明は、前記ガスホルダ3内の消化ガスの貯留量が中程度の状態から増減した場合の例である。この場合は、前記のように、優先順位が一番高い多種燃料ボイラ1が起動しており、さらに要求負荷に応じて所定台数の通常ボイラ2および優先順位が二番目に高い多種燃料ボイラ1が通常燃料を燃焼させるボイラとして起動している。
【0033】
まず、要求負荷がボイラ1台分のとき、消化ガスの貯留量が増加した場合は、消化ガスの貯留量に基づくと、多種燃料ボイラ1を起動させるべき台数は2台となるが、要求負荷がボイラ1台分であるため、多種燃料ボイラ1の起動台数を増加させない。逆に、消化ガスの貯留量が減少した場合は、消化ガスを燃焼させている多種燃料ボイラ1を停止させ、前記各通常ボイラ2のうち優先順位が一番高い通常ボイラ2を起動させる。
【0034】
つぎに、要求負荷がボイラ2台分のとき、消化ガスの貯留量が増加した場合は、さらに1台の多種燃料ボイラ1を消化ガスを燃焼させるボイラとして起動させ、通常ボイラ2を停止させる。逆に、消化ガスの貯留量が減少した場合は、消化ガスを燃焼させている多種燃料ボイラ1を停止させ、前記各通常ボイラ2のうち優先順位が二番目に高い通常ボイラ2を起動させる。
【0035】
以下、要求負荷がボイラ3台分または4台分のとき、消化ガスの貯留量が増加した場合は、つぎの優先順位の多種燃料ボイラ1を消化ガスを燃焼させるボイラとして起動させ、優先順位が一番低い通常ボイラ2を停止させる。ここで、要求負荷がボイラ3台分のとき、消化ガスの貯留量が減少した場合は、消化ガスを燃焼させている多種燃料ボイラ1を停止させ、前記各通常ボイラ2のうちつぎの優先順位の通常ボイラ2を1台起動させる。また、要求負荷がボイラ4台分のとき、消化ガスの貯留量が減少した場合は、消化ガスを燃焼させている多種燃料ボイラ1を停止させ、停止中の多種燃料ボイラ1を通常燃料を燃焼させるボイラとして起動させる。
【0036】
そして、要求負荷がボイラ5台分のときには、前記各多種燃料ボイラ1は、優先順位が一番高い1台が消化ガスを燃焼させた状態で起動するとともに、他の1台が通常燃料を燃焼させた状態で起動し、さらに前記各通常ボイラ2は、全台数起動した状態となっている。そのため、消化ガスの貯留量が増加した場合には、通常燃料を燃焼させている多種燃料ボイラ1を消化ガスを燃焼させるボイラとして起動させる。逆に、消化ガスの貯留量が減少した場合は、消化ガスを燃焼させている多種燃料ボイラ1を通常燃料を燃焼させるボイラとして起動させる。
【0037】
ここで、この実施例においては、前記貯留量検出手段12および前記圧力検出手段13の信号に基づいて、1台の台数制御装置11によって前記各多種燃料ボイラ1および前記各通常ボイラ2を制御するように構成しているが、この発明においては、前記貯留量検出手段12からの検出信号に基づく前記各多種燃料ボイラ1の台数制御と、前記圧力検出手段13からの検出信号に基づく前記各多種燃料ボイラ1および前記各通常ボイラ2の台数制御とを独立した台数制御装置として構成することもできる。
【0038】
【発明の効果】
この発明によれば、可燃性廃棄物の量にかかわらず、全ボイラを効率よく運転することができる。しかも、可燃性廃棄物を燃焼させるための専用のボイラを設置する必要が無くなり、ボイラの総設置台数を削減することができる。
【図面の簡単な説明】
【図1】この発明の一実施例の概略構成を示す説明図である。
【符号の説明】
1 多種燃料ボイラ
2 通常ボイラ
[0001]
BACKGROUND OF THE INVENTION
This invention relates to a control method of a multi-canister installation system of the boiler to recycle combustible wastes as fuel.
[0002]
[Prior art]
In manufacturing facilities such as fermented products and brewed products, and garbage processing facilities that decompose garbage with microorganisms, waste called digestion gas is generated in the process of fermentation, brewing, or decomposition. This digestion gas is a combustible gas mainly composed of methane. For this reason, in such facilities, digestion gas is used as fuel for boilers, steam and hot water are generated, and further, electricity is generated using the generated steam, and the digestion gas is disposed and recovered as energy. is doing.
[0003]
By the way, in the manufacturing facilities and the waste treatment facilities as described above, in order to supply steam or hot water as heat sources to these facilities, a boiler that burns ordinary fuel such as kerosene or city gas (hereinafter referred to as “normal boiler”). ") Is installed. Therefore, in the above facilities, in addition to the normal boiler, a dedicated boiler for burning the digestion gas is currently installed. Moreover, in such facilities, the larger the scale, the more these boilers are required. In addition, since the amount of digestion gas generated varies, if boilers are installed according to the amount of digestion gas generated, these boilers will be stopped when there is no digestion gas generation. Driving is not possible.
[0004]
[Problems to be solved by the invention]
In the present invention, all boilers can be operated efficiently regardless of the amount of combustible waste such as digestion gas, and many boilers do not require a dedicated boiler for burning the combustible waste. and its object is to provide a control method of a can placed systems.
[0005]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 comprises a multi-fuel boiler that burns combustible waste and normal fuel, and a normal boiler that burns normal fuel. In the multi-can installation system, the number of the multi-fuel boilers is controlled according to the amount of combustible waste stored, and the number of the multi-fuel boilers and the normal boiler is controlled according to the required load .
[0006]
[Means for Solving the Problems]
The invention according to claim 2 is characterized in that the number control according to the amount of the combustible waste stored is prioritized over the number control according to the required load .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. The present invention is suitably implemented as a boiler multi-can installation system that recycles combustible waste as fuel, disposes of combustible waste, and supplies a heat source, and a control method thereof. Here, the combustible waste is a digestion gas generated when the garbage is decomposed by a fermentation process, a brewing process, or a microorganism, a low-concentration alcohol generated in a distillation process of alcohol, and the like. In addition, the combustible waste includes combustible gas generated from industrial waste, garbage, or the like by a carbonization furnace or a semi-drying furnace, so-called dry distillation gas. Therefore, the boiler multi-can installation system of the present invention is used in a production facility, a distillation facility, a waste disposal facility, etc. for fermentation products and brewing products.
[0009]
First, the boiler multi-can installation system according to the present invention includes a multi-fuel boiler that burns combustible waste and normal fuel, and a normal boiler that burns normal fuel. The multi-fuel boiler is a boiler that burns combustible waste and normal fuel alternatively or simultaneously. The normal boiler is a boiler that normally burns fuel. Here, the normal fuel refers to a general fuel such as liquid fuel such as heavy oil, light oil and kerosene, and gas fuel such as city gas and propane.
[0010]
In the multi-can installation system, the number of boilers installed in the entire multi-can installation system is set according to the required load, and the number of multi-fuel boilers installed is the amount of combustible waste generated. Set according to the amount. The multi-fuel boiler is configured such that combustible waste and normal fuel are alternatively or simultaneously supplied, and the normal boiler is configured to be supplied with normal fuel. Further, the multi-fuel boiler and the normal boiler are connected to a common steam header or hot water line. Here, the facility as described above includes a storage facility for the generated combustible waste, and the combustible waste is supplied from the storage facility to the multi-fuel boiler.
[0011]
With the above configuration, in the boiler multi-can installation system according to the present invention, when the amount of combustible waste stored in the storage facility is small, the multi-fuel boiler can be used as a normal boiler. Therefore, the entire boiler can be operated efficiently regardless of the amount of combustible waste stored. Moreover, it is not necessary to install a dedicated boiler for burning flammable waste, and the total number of boilers installed can be reduced.
[0012]
Next, a control method of the boiler multi-can installation system according to the present invention will be described. In the multiple can installation system, a storage amount detection means is provided in the flammable waste storage facility, and a required load detection means for the multiple can installation system is provided in the steam header, the hot water line, etc. The number of the multi-fuel boilers is controlled according to the amount of waste stored, and the number of the multi-fuel boilers and the normal boilers is controlled according to the required load on the multi-can installation system.
[0013]
That is, the number of activated multi-fuel boilers is determined according to the amount of combustible waste stored, and the multi-fuel boiler is a boiler that burns combustible waste. And the number of the multi-fuel boilers corresponding to the required load is started. At this time, if the number of activated multi-fuel boilers is insufficient for the required load, normal boilers for the insufficient number are activated. Further, when all the normal boilers are activated and the predetermined number of multi-fuel boilers are stopped, the multi-fuel boiler and the normal boilers are not activated according to the required load. In this case, the stopped multi-fuel boiler is started as a boiler that burns normal fuel. When the load decreases, the multi-fuel boilers that burn normal fuel are stopped, and the normal boilers are stopped one by one as the load further decreases.
[0014]
In addition, when the required load is stable, if the amount of flammable waste stored increases, the number of multi-fuel boilers that burn flammable waste will increase, and conversely the storage of flammable waste If the amount is reduced, the number of multi-fuel boilers that are burning combustible waste is reduced. And the starting number of each of the said multifuel boiler and the said normal boiler is increased / decreased according to the request | requirement load to the said multiple can installation system whole. That is, in the control method of the multi-can installation system according to the present invention, the multi-fuel boiler is started up as a boiler for burning the combustible waste according to the amount of combustible waste stored, and the multi-fuel boiler is operated. It is usually started as a boiler that burns fuel.
[0015]
Furthermore, in the control method of the boiler multi-can installation system according to the present invention, the number control according to the amount of combustible waste stored is given priority over the number control according to the required load. That is, since the control is performed so that the disposal of the combustible waste is prioritized, the combustible waste can be stably disposed according to the fluctuation of the storage amount of the combustible waste, and the above-mentioned many Steam and hot water can be generated without excess or deficiency in the entire can installation system.
[0016]
【Example】
An embodiment of the present invention implemented in a beer brewery will be described below with reference to FIG. FIG. 1 is an explanatory diagram showing a schematic configuration of a first embodiment of the present invention.
[0017]
In FIG. 1, the boiler multi-can installation system includes a predetermined number of multi-fuel boilers 1, 1 and a predetermined number of normal boilers 2, 2,. The number of installed multi-fuel boilers 1 is set in accordance with the amount of combustible waste, that is, digestion gas generated in a brewery factory, and the number of installed multi-fuel boilers 1 and normal boilers 2 The total is set according to the required load in the entire multi-can installation system. The multi-can installation system in this embodiment is composed of a total of five boilers: two multi-fuel boilers 1 and three normal boilers 2. Here, in this embodiment, the load amount per boiler in each of the various fuel boilers 1 and each of the normal boilers 2 is the same.
[0018]
In the present embodiment, each of the multi-fuel boilers 1 is configured to burn one of combustible waste and normal fuel. Therefore, a digestion gas line 4 from a digestion gas storage facility (hereinafter referred to as “gas holder”) 3 and a normal fuel line 5 are connected to each of the various fuel boilers 1. On the other hand, the normal fuel line 5 is connected to each normal boiler 2.
[0019]
Further, a steam line 6 is connected to each of the various fuel boilers 1 and each of the normal boilers 2. These steam lines 6 are connected to a common steam header 7 by joining them on the way. The steam header 7 is connected to a steam supply line 8 to steam use equipment (not shown).
[0020]
Each of the various fuel boilers 1 and each of the normal boilers 2 includes controllers 9, 9,. Each of these controllers 9 is connected to a control device as a multi-can installation system, that is, a number control device 11 via a wired or wireless communication line 10. On the other hand, the gas holder 3 is provided with digestion gas storage amount detection means 12. The steam header 7 is provided with pressure detection means 13 as load detection means. The storage amount detection means 12 and the pressure detection means 13 are connected to the number control device 11 via a line 14, respectively.
[0021]
The number control device 11 controls the number of activated multi-fuel boilers 1 and the number of activated normal boilers 2 based on the detection signals from the storage amount detecting means 12 and the pressure detecting means 13, respectively. It is configured.
[0022]
Next, with respect to the control contents in the number control device 11, there is no change in the digestion gas storage amount and the required load is increased or decreased, and there is no change in the required load and the digestion gas storage amount is increased or decreased. This will be described in detail. Here, the priority order of the various fuel boilers 1 is set higher than the priority order of the normal boilers 2.
[0023]
First, the contents of control when there is no change in the amount of digestion gas stored and the required load increases or decreases will be described. First, when the amount of digestion gas stored in the gas holder 3 is large, the number control device 11 starts the number of the multi-fuel boilers 1 to burn digestion gas based on the detection signal from the storage amount detection means 12. Is determined as the total number, that is, two. The number control device 11 determines the number of activated units in the entire multi-can installation system based on the detection signal from the pressure detecting means 13, and activates the boilers corresponding to the number of activated units.
[0024]
First, when the required load is for one boiler, the number control device 11 activates the multi-fuel boiler 1 having the highest priority among the multi-fuel boilers 1 as a boiler for burning digestion gas. When the required load increases to two boilers, the number control device 11 burns the digest fuel gas in the multi-fuel boilers 1 of the next priority among the multi-fuel boilers 1 in accordance with the increase in the required load. Start as a boiler. Hereinafter, when the required load increases, the number control device 11 activates each of the normal boilers 2 one by one in descending order of priority according to the increase in the required load.
[0025]
When the required load is equivalent to five boilers, the various fuel boilers 1 and the normal boilers 2 are all activated. When the required load is reduced from this state, first, each of the normal boilers 2 is stopped one by one in the order of priority, and then each of the multi-fuel boilers 1 that burn the digestion gas is ordered in the order of priority. Stop one by one.
[0026]
Next, the case where the amount of digestion gas stored in the gas holder 3 is medium will be described. In this case, the number controller 11 determines the number of activated multi-fuel boilers 1 as one based on the amount of digestion gas stored. When the required load is one boiler, the multi-fuel boiler 1 having the highest priority among the multi-fuel boilers 1 is activated as a boiler for burning digestion gas. When the required load increases to two boilers, the number control device 11 activates the normal boiler 2 having the highest priority among the normal boilers 2.
[0027]
Hereinafter, when the required load increases, the number control device 11 starts each of the normal boilers 2 one by one in descending order of priority according to the increase in the required load. When the required load increases to four boilers, one multi-fuel boiler 1 and all the normal fuel boilers 2 are activated.
[0028]
When the required load increases to 5 units, the number control device 11 starts the stopped multi-fuel boiler 1 as a boiler that burns normal fuel. When the required load is reduced from this state, the unit control device 11 first stops the multi-fuel boiler 1 that is burning normal fuel, and thereafter, the normal boilers 2 are turned on according to the reduction of the required load. The units are decreased one by one in descending order of priority, and finally the multi-fuel boiler 1 burning the digestion gas is stopped.
[0029]
Furthermore, the case where the amount of digestion gas stored in the gas holder 3 is small or almost absent will be described. In this case, the number control device 11 determines the number of activated multi-fuel boilers 1 as 0 based on the amount of digestion gas stored. When the required load is for one boiler, the normal boiler 2 having the highest priority among the normal boilers 2 is activated. Thereafter, the respective normal boilers 2 are activated one by one in descending order of priority in accordance with the increase in required load.
[0030]
When the load request increases to three boilers, all the normal boilers 2 are activated. When the required load further increases from this state, the number control device 11 starts each of the multi-fuel boilers 1 as a boiler that burns normal fuel in order of priority.
[0031]
When the required load increases to five boilers, all the multi-fuel boilers 1 are activated as boilers for burning normal fuel, and all the normal boilers 2 are activated. When the required load is reduced from this state, first, the multi-fuel boilers 1 that are burning normal fuel are stopped one by one in the order of priority, and thereafter each of the normal boilers 2 is stopped according to the reduction of the required load. Stop one by one in ascending order of priority.
[0032]
Next, the contents of control when there is no change in the required load and the storage amount of digestion gas increases or decreases will be described. Here, the following description is an example in the case where the amount of digestion gas stored in the gas holder 3 is increased or decreased from a medium state. In this case, as described above, the multi-fuel boiler 1 with the highest priority is activated, and a predetermined number of the normal boilers 2 and the multi-fuel boiler 1 with the second highest priority according to the required load. It is usually started up as a boiler that burns fuel.
[0033]
First, when the required load is equivalent to one boiler, if the digestion gas storage amount increases, the number of units to start the multi-fuel boiler 1 is two based on the digestion gas storage amount. Since it is for one boiler, the number of activated multi-fuel boilers 1 is not increased. On the contrary, when the digestion gas storage amount decreases, the multi-fuel boiler 1 burning the digestion gas is stopped, and the normal boiler 2 having the highest priority among the normal boilers 2 is started.
[0034]
Next, when the required load is equivalent to two boilers, when the amount of digestion gas stored increases, one multi-fuel boiler 1 is further activated as a boiler for burning digestion gas, and the normal boiler 2 is stopped. Conversely, when the digestion gas storage amount decreases, the multi-fuel boiler 1 burning the digestion gas is stopped, and the normal boiler 2 having the second highest priority among the normal boilers 2 is started.
[0035]
Hereinafter, when the required load is equivalent to three or four boilers, when the digestion gas storage amount increases, the multi-fuel boiler 1 of the next priority is started as a boiler for burning digestion gas, and the priority is The lowest normal boiler 2 is stopped. Here, when the required load is equivalent to three boilers, when the amount of digestion gas stored is reduced, the multifuel boiler 1 burning the digestion gas is stopped, and the next priority order among the respective normal boilers 2 One normal boiler 2 is activated. Further, when the required load is equivalent to four boilers, when the amount of digestion gas stored decreases, the multifuel boiler 1 burning the digestion gas is stopped, and the stopped multifuel boiler 1 is combusted with normal fuel. Start as a boiler.
[0036]
When the required load is equivalent to 5 boilers, each of the multi-fuel boilers 1 starts with the one with the highest priority burning the digested gas, and the other one burns normal fuel. In this state, the normal boilers 2 are all activated. Therefore, when the storage amount of digestion gas increases, the multi-fuel boiler 1 that normally burns fuel is activated as a boiler that burns digestion gas. Conversely, when the digestion gas storage amount decreases, the multi-fuel boiler 1 burning the digestion gas is started as a boiler that burns normal fuel.
[0037]
Here, in this embodiment, each of the multi-fuel boilers 1 and each of the normal boilers 2 is controlled by one unit control device 11 based on the signals of the storage amount detection means 12 and the pressure detection means 13. In the present invention, the number control of the various fuel boilers 1 based on the detection signal from the storage amount detection means 12 and the various kinds based on the detection signal from the pressure detection means 13 are configured. The number control of the fuel boiler 1 and each of the normal boilers 2 can be configured as an independent number control device.
[0038]
【The invention's effect】
According to this invention, all boilers can be operated efficiently regardless of the amount of combustible waste. In addition, it is not necessary to install a dedicated boiler for burning flammable waste, and the total number of boilers installed can be reduced.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a schematic configuration of an embodiment of the present invention.
[Explanation of symbols]
1 Multi-fuel boiler 2 Normal boiler

Claims (2)

可燃性廃棄物と通常燃料とを燃焼させる多種燃料ボイラ1と通常燃料を燃焼させる通常ボイラ2とで構成した多缶設置システムにおいて、可燃性廃棄物の貯留量に応じて前記多種燃料ボイラ1を台数制御するとともに、要求負荷に応じて前記多種燃料ボイラ1および前記通常ボイラ2を台数制御することを特徴とするボイラの多缶設置システムの制御方法。  In a multi-can installation system comprising a multi-fuel boiler 1 for combusting combustible waste and normal fuel and a normal boiler 2 for combusting normal fuel, the multi-fuel boiler 1 is arranged in accordance with the amount of combustible waste stored. A control method for a multi-can installation system for a boiler, wherein the number of the multi-fuel boilers 1 and the normal boilers 2 are controlled according to the required load while controlling the number of units. 前記可燃性廃棄物の貯留量に応じた台数制御を前記要求負荷に応じた台数制御より優先させて行うことを特徴とする請求項に記載のボイラの多缶設置システムの制御方法。2. The method for controlling a boiler multi-can installation system according to claim 1 , wherein unit control according to the amount of combustible waste stored is prioritized over unit control according to the required load.
JP36616799A 1999-12-24 1999-12-24 Control method for boiler multi-can installation system Expired - Lifetime JP4168561B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP36616799A JP4168561B2 (en) 1999-12-24 1999-12-24 Control method for boiler multi-can installation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP36616799A JP4168561B2 (en) 1999-12-24 1999-12-24 Control method for boiler multi-can installation system

Publications (2)

Publication Number Publication Date
JP2001182902A JP2001182902A (en) 2001-07-06
JP4168561B2 true JP4168561B2 (en) 2008-10-22

Family

ID=18486092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP36616799A Expired - Lifetime JP4168561B2 (en) 1999-12-24 1999-12-24 Control method for boiler multi-can installation system

Country Status (1)

Country Link
JP (1) JP4168561B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010197000A (en) * 2009-02-26 2010-09-09 Samson Co Ltd Off-gas combustion boiler system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011247538A (en) * 2010-05-28 2011-12-08 Osaka Gas Co Ltd Multi-can installed boiler
JP6086592B2 (en) * 2013-04-22 2017-03-01 株式会社サムソン Multi-can boiler
JP6375914B2 (en) * 2014-12-05 2018-08-22 三浦工業株式会社 Boiler system
JP6593024B2 (en) * 2015-08-20 2019-10-23 三浦工業株式会社 Boiler system
JP7107072B2 (en) * 2018-08-02 2022-07-27 三浦工業株式会社 By-product gas utilization system
JP7107073B2 (en) * 2018-08-02 2022-07-27 三浦工業株式会社 By-product gas utilization system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5871501U (en) * 1981-11-09 1983-05-14 三菱重工業株式会社 Steam generation equipment
JP2664898B2 (en) * 1987-02-12 1997-10-22 三菱重工業株式会社 Fuel supply adjustment method
JP2671230B2 (en) * 1990-06-19 1997-10-29 新日本製鐵株式会社 Boiler fuel automatic distribution device
JPH1113418A (en) * 1997-06-23 1999-01-19 Hitachi Ltd Running method for refuse burning power plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010197000A (en) * 2009-02-26 2010-09-09 Samson Co Ltd Off-gas combustion boiler system

Also Published As

Publication number Publication date
JP2001182902A (en) 2001-07-06

Similar Documents

Publication Publication Date Title
JP4168561B2 (en) Control method for boiler multi-can installation system
JP2008135268A (en) Starting method of fuel cell device
US5816792A (en) Alternate gas fuel burning system
CN204213910U (en) For the device of burn hydrocarbon or other flammable liquid and gas
CN1963302A (en) Method for controlling the supply of fuel to a combustion furnace
CN202581263U (en) Intelligent boiler control device
CN103604128B (en) Method for utilizing waste heat of low-concentration combustible materials in tail gas of Slapple furnace
JP3998812B2 (en) How to control the number of boilers with multiple cans
CN112610979A (en) Biomass boiler environmental protection and energy saving control system
JP2001107707A (en) Digestive gas combustion treatment system
CN217458827U (en) Organic liquid hydrogen production system based on hydrogen combustion
JP2618960B2 (en) Catalytic combustion apparatus and combustion control method therefor
RU2196933C2 (en) Hot-water boiler
CN111457428B (en) Combustion control method of methanol stove
JP2001182935A (en) Method and device of effecting combustion
JP2003020204A (en) Apparatus for generating hydrogen
JP2003307140A (en) Combustion control device
KR200374073Y1 (en) Mycom boiler
JPH08219550A (en) Control method in multi-can installation system of fluid heater
JPH08219551A (en) Control method in multi-can installation system of fluid heater
JP2024066075A (en) By-product fuel utilization system
PL306200A1 (en) Method of and system for controlling combustion process in a glass-making tank furnace
JP4716446B2 (en) Cogeneration system and operation control method thereof
EP4060230A1 (en) An arrangement for combusting purge gas and a method thereof
JP6850754B2 (en) Biogas supply device and power generation system

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060620

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080201

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080527

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080530

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080715

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080728

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110815

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4168561

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120815

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120815

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130815

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term