JP2002162014A - Method and device of controlling operation for incinerating wastes - Google Patents

Method and device of controlling operation for incinerating wastes

Info

Publication number
JP2002162014A
JP2002162014A JP2000354269A JP2000354269A JP2002162014A JP 2002162014 A JP2002162014 A JP 2002162014A JP 2000354269 A JP2000354269 A JP 2000354269A JP 2000354269 A JP2000354269 A JP 2000354269A JP 2002162014 A JP2002162014 A JP 2002162014A
Authority
JP
Japan
Prior art keywords
amount
steam
refuse
incinerator
waste
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.)
Pending
Application number
JP2000354269A
Other languages
Japanese (ja)
Inventor
Satoshi Fujii
聡 藤井
Manabu Kuroda
学 黒田
Hiroyuki Shimamoto
拓幸 島本
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP2000354269A priority Critical patent/JP2002162014A/en
Publication of JP2002162014A publication Critical patent/JP2002162014A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/12Heat utilisation in combustion or incineration of waste

Landscapes

  • Incineration Of Waste (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method and a device of controlling operation for incinerating wastes in a waste incineration plant capable of effectively and efficiently controlling the production of electricity taking into consideration the electric power demand of the factory and the cost of power sold to power companies. SOLUTION: An incineration plant comprises a waste incinerator 2, a boiler 3 for generating steam by making use of the heat of the waste incinerator 2, and power-generating equipment 4 for generating power using the steam generated in the boiler 3. The operation controller 1 of the waste incinerator 2 comprises a steam generating amount determining means 10 for determining the amount of steam generated in the boiler 3 within the operational capacity of the waste incinerator 2 such that it is larger per hour in daytime than in nighttime, and a combustion controlling means 20 for controlling combustion in the waste incinerator on the basis of the amount of generated steam determined by the steam generating amount determining means 10.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、ごみ焼却プラント
におけるごみ焼却炉の運転方法及び運転制御装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an operation control device for a waste incinerator in a waste incineration plant.

【0002】[0002]

【従来の技術】ごみ焼却炉で発生する熱を利用して発電
を行う発電設備を備えたごみ焼却プラントにおいては、
従来、一日に処理すべきごみの量を一定の焼却速度で焼
却処理することを目標に、ごみ焼却炉内の燃焼状態に応
じてごみ供給速度、ごみ搬送速度、燃焼用空気量等の制
御パラメータを制御していた。従来のこのような制御方
法は、単位時間当たりの焼却量を一定に維持するには都
合がよいが、ごみの単位質量当たりの発熱量はごみ質に
より大きく変化するため、炉内に供給するごみ質に応じ
てごみの燃焼により生じる発熱量は大きく変化し、発電
設備における発電量もそれに応じて変動していた。
2. Description of the Related Art In a refuse incineration plant equipped with a power generation facility for generating power using heat generated in a refuse incinerator,
Conventionally, with the goal of incinerating the amount of waste to be treated per day at a constant incineration speed, control of the waste supply speed, waste transfer speed, combustion air amount, etc. according to the combustion state in the waste incinerator Controlled parameters. Such a conventional control method is convenient for maintaining a constant amount of incineration per unit time, but since the calorific value per unit mass of the refuse varies greatly depending on the refuse quality, the refuse supplied to the furnace is The amount of heat generated by the combustion of refuse varies greatly depending on the quality, and the amount of power generated by the power generation equipment also varies accordingly.

【0003】この発電設備によって発電された電力は、
工場内での電力需要を賄うとともに余剰の電力を電力会
社に売電している。特に、電力需要が増大し電力供給が
逼迫する時期には、ごみ焼却プラントからの電力供給に
対する期待は大きい。しかし、従来の制御方法では、発
電量はごみの単位質量当たりの発熱量の変化に応じて変
動するため、例えば、電力需要の大きい昼間の電力供給
量が、電力需要の小さい夜間の電力供給量を下回る場合
もあり、必ずしも電力需要に対応した電力供給が適切に
なされていないという問題があった。更に、余剰電力の
電力会社への売電を考えた場合に、電力需要の大きい昼
間は一般的に売電単価が高いため、発電量を昼間に多く
なるように積極的に制御することが収益面からも望まし
い。
[0003] The power generated by this power generation facility is:
In addition to meeting the power demand within the factory, the company sells surplus power to power companies. In particular, when power demand increases and power supply becomes tight, expectations for power supply from refuse incineration plants are high. However, in the conventional control method, the amount of power generated varies according to the change in the amount of heat generated per unit mass of garbage. In some cases, and there has been a problem that power supply has not always been properly performed in response to power demand. Furthermore, considering the sale of surplus electricity to power companies, the power selling unit price is generally high during the daytime when power demand is large, so it is necessary to actively control the amount of power generation to increase during the daytime. It is also desirable from the viewpoint.

【0004】このような問題に対して、特開平10−2
81435号公報には、所定周期内の焼却炉の運転時間
帯を電力需要に応じて複数の運転時間区分に予め分割
し、前記各運転時間区分における単位時間当たりの焼却
量を電力需要が高い運転時間区分程大きく、かつ、焼却
炉固有の単位時間当たりの焼却量の許容範囲を逸脱せず
に、前記所定周期内の目標焼却量を達成するように設定
し、その設定された単位時間当たりの焼却量に基づいて
焼却炉の燃焼制御を行う方法が開示されている。
To solve such a problem, Japanese Patent Laid-Open No. 10-2
Japanese Patent No. 81435 discloses that the operating time zone of an incinerator within a predetermined cycle is divided in advance into a plurality of operating time sections in accordance with the power demand, and the incineration amount per unit time in each of the operating time sections is calculated based on the power demand. It is set so as to achieve the target incineration amount within the predetermined period without departing from the permissible range of the incineration amount per unit time, which is as large as the time section, and specific to the incinerator. A method for controlling combustion in an incinerator based on the amount of incineration is disclosed.

【0005】[0005]

【発明が解決しようとする課題】しかし、特開平10−
281435号公報の方法は、単位時間当たりのごみの
焼却量に基づき焼却炉の燃焼制御を行っているため、ご
みの単位質量当たりの発熱量がごみ質により変化した場
合に、発電設備での発電量を所定の値に制御することは
難しいという問題を有していた。
However, Japanese Patent Application Laid-Open No.
In the method of Japanese Patent No. 281435, since the combustion control of the incinerator is performed based on the amount of waste incinerated per unit time, when the calorific value per unit mass of the waste changes depending on the quality of the waste, the power generation by the power generation equipment is performed. There was a problem that it was difficult to control the amount to a predetermined value.

【0006】さらに、例えば平日と休日では工場内での
電力需要や電力会社への売電価格が異なるため、平日の
昼間と夜間だけでなく休祭日を含めた長期の運転計画が
必要となる場合もある。
Further, for example, when the power demand in the factory and the selling price to the power company differ between weekdays and holidays, a long-term operation plan including not only daytime and nighttime on weekdays but also holidays is required. There is also.

【0007】本発明はこれらの問題点を解決し、工場内
での電力需要や電力会社への売電価格を考慮した発電量
の制御を制御性良く効率的に行うことができるごみ焼却
プラントにおけるごみ焼却の運転制御方法及び運転制御
装置を提供することを目的とする。
[0007] The present invention solves these problems and provides a waste incineration plant capable of efficiently controlling the amount of power generation in consideration of the power demand in a factory and the price of power sold to a power company with good controllability. An object of the present invention is to provide an operation control method and an operation control device for refuse incineration.

【0008】[0008]

【課題を解決するための手段】上記の課題は次の発明に
より解決される。
The above object is achieved by the following invention.

【0009】請求項1の発明は、ごみ焼却炉と、該ごみ
焼却炉の熱を利用して蒸気を発生させるボイラと、該ボ
イラで発生させた蒸気を用いて発電を行う発電設備とを
備えたごみ焼却プラントにおけるごみ焼却炉の運転方法
であって、ボイラから発生させる蒸気発生量の値をごみ
焼却炉の運転能力の範囲内で、かつ、夜間の時間帯より
も昼間の時間帯の方が単位時間当たりの蒸気発生量が大
きくなるように決定する蒸気発生量決定ステップと、該
蒸気発生量決定ステップにより決定された蒸気発生量の
値に基づきごみ焼却炉の燃焼制御を行う燃焼制御ステッ
プとを有することを特徴とするごみ焼却の運転制御方法
である。
The invention of claim 1 includes a refuse incinerator, a boiler for generating steam using the heat of the refuse incinerator, and a power generation facility for generating power using the steam generated by the boiler. A method for operating a refuse incinerator in a refuse incineration plant, in which the value of the amount of steam generated from the boiler is within the operating capacity of the refuse incinerator and during the daytime rather than at night. Determining the amount of steam generated per unit time to be large, and a combustion control step of controlling the combustion of the refuse incinerator based on the value of the amount of steam generated determined by the step of determining the amount of steam generated And an operation control method for waste incineration.

【0010】請求項2の発明は、ごみ焼却炉と、該ごみ
焼却炉の熱を利用して蒸気を発生させるボイラと、該ボ
イラで発生させた蒸気を用いて発電を行う発電設備とを
備えたごみ焼却プラントにおけるごみ焼却炉の運転制御
装置であって、ボイラから発生させる蒸気発生量の値を
ごみ焼却炉の運転能力の範囲内で、かつ、夜間の時間帯
よりも昼間の時間帯の方が単位時間当たりの蒸気発生量
が大きくなるように決定する蒸気発生量決定手段と、該
蒸気発生量決定手段により決定された蒸気発生量の値に
基づきごみ焼却炉の燃焼制御を行う燃焼制御手段とを有
することを特徴とするごみ焼却炉の運転制御装置であ
る。
According to a second aspect of the present invention, there is provided a refuse incinerator, a boiler for generating steam using the heat of the refuse incinerator, and a power generation facility for generating power using the steam generated by the boiler. An operation control device for a refuse incinerator in a refuse incineration plant, wherein the value of the amount of steam generated from the boiler is within the operating capacity of the refuse incinerator, and in the daytime hours rather than the nighttime hours. Means for determining the amount of steam generated per unit time so as to be larger, and combustion control for controlling the combustion of the waste incinerator based on the value of the amount of steam generated determined by the means for determining steam generated. Means for controlling the operation of a refuse incinerator.

【0011】請求項3の発明は、上記請求項2の発明に
おいて、蒸気発生量決定手段は、ごみ焼却炉の運転デー
タから予め算出されたごみの単位質量当たりの蒸気発生
量を用いてボイラから発生させる蒸気発生量の値を算出
することを特徴とするごみ焼却炉の運転制御装置であ
る。
According to a third aspect of the present invention, in the second aspect of the present invention, the steam generation amount determining means uses the steam generation amount per unit mass of refuse calculated from operation data of the refuse incinerator from the boiler. An operation control device for a refuse incinerator characterized by calculating a value of an amount of generated steam.

【0012】請求項4の発明は、上記請求項2または請
求項3の発明において、蒸気発生量決定手段は、所定期
間内に昼夜の時間帯が異なる特定日を1日以上含む場合
に、前記特定日の日数を考慮して昼間及び夜間の時間帯
における蒸気発生量の値を決定することを特徴とするご
み焼却炉の運転制御装置である。
According to a fourth aspect of the present invention, in the second or the third aspect of the present invention, the steam generation amount determining means includes the step of, when a predetermined day includes one or more specific days having different time zones of day and night. An operation control device for a refuse incinerator, characterized in that the value of the amount of generated steam in the daytime and nighttime zones is determined in consideration of the number of days of a specific day.

【0013】なお、課題を解決するための手段にはさら
に以下の発明も含まれる。 (1)ごみ焼却炉と、該ごみ焼却炉の熱を利用して蒸気
を発生させるボイラと、該ボイラで発生させた蒸気を用
いて発電を行う発電設備とを備えたごみ焼却プラントに
おけるごみ焼却炉の運転制御装置であって、ボイラから
発生させる蒸気発生量の値をごみ焼却炉の運転能力の範
囲内で、かつ、夜間の時間帯よりも昼間の時間帯の方が
単位時間当たりの蒸気発生量が大きくなるように決定す
る蒸気発生量決定手段と、前記ボイラから発生する蒸気
発生量の値が前記蒸気発生量決定手段により決定された
値となるように、前記ボイラから発生する蒸気発生量の
値を制御パラメータとしてごみ焼却炉の燃焼制御を行う
燃焼制御手段とを有することを特徴とするごみ焼却炉の
運転制御装置である。 (2)ごみ焼却炉と、該ごみ焼却炉の熱を利用して蒸気
を発生させるボイラと、該ボイラで発生させた蒸気を用
いて発電を行う発電設備とを備えたごみ焼却プラントに
おけるごみ焼却炉の運転制御装置であって、ボイラから
発生させる蒸気発生量の値をごみ焼却炉の運転能力の範
囲内で、かつ、夜間の時間帯よりも昼間の時間帯の方が
単位時間当たりの蒸気発生量が大きくなるように決定す
る蒸気発生量決定手段と、該蒸気発生量決定手段で決定
された蒸気発生量の値をごみの質量に換算しごみ焼却炉
に投入するごみの質量を算出するごみ投入量算出手段
と、該ごみ投入量算出手段で算出されたごみの投入量と
なるようにごみ焼却炉の燃焼制御を行う燃焼制御手段と
を有することを特徴とするごみ焼却炉の運転制御装置で
ある。
The means for solving the problems further include the following inventions. (1) Waste incineration in a refuse incineration plant including a refuse incinerator, a boiler that generates steam using the heat of the refuse incinerator, and a power generation facility that generates power using the steam generated by the boiler A furnace operation control device that determines the value of the amount of steam generated from the boiler within the operating capacity of the refuse incinerator, and that the steam per unit time is higher in the daytime than in the nighttime. Means for determining the amount of steam generated so as to increase the amount of steam generated, and the amount of steam generated from the boiler such that the value of the amount of steam generated from the boiler becomes the value determined by the means for determining steam generated. Combustion control means for controlling combustion of the waste incinerator using a value of the amount as a control parameter. (2) Refuse incineration in a refuse incineration plant equipped with a refuse incinerator, a boiler for generating steam using the heat of the refuse incinerator, and a power generation facility for generating power using the steam generated by the boiler A furnace operation control device that determines the value of the amount of steam generated from the boiler within the operating capacity of the refuse incinerator, and that the steam per unit time is higher in the daytime than in the nighttime. Means for determining the amount of steam generated so as to increase the amount of generated steam, and the value of the amount of steam generated determined by the means for determining the amount of steam generated is converted into the mass of the refuse and the mass of the refuse to be injected into the refuse incinerator is calculated. Refuse incinerator operation control, comprising: refuse input amount calculation means; and combustion control means for controlling combustion of the refuse incinerator so that the input amount of refuse calculated by the refuse input amount calculation means is obtained. Device.

【0014】[0014]

【発明の実施の形態】図1は、本発明に係るごみ焼却炉
の運転制御装置を適用したごみ焼却プラントの実施形態
の一例を示す概略構成図である。
FIG. 1 is a schematic diagram showing an example of an embodiment of a waste incineration plant to which an operation control device for a waste incinerator according to the present invention is applied.

【0015】回収されたごみは、まずごみ焼却プラント
内のごみピット5に受け入れられる。この時、ごみピッ
ト5内に受け入れられたごみの質量がデータベース6に
記録される。ごみピット5に貯留されたごみは、ごみ焼
却炉2に投入されて燃焼する。ボイラ3では、ごみ焼却
炉2においてごみの燃焼により発生した熱を利用して蒸
気を発生させる。ボイラ3で発生した蒸気は発電設備4
に送られ、そこで発電され工場内での電力需要を賄うた
めに、あるいは電力会社に売電するために送電される。
The collected waste is first received in a waste pit 5 in a waste incineration plant. At this time, the mass of the refuse received in the refuse pit 5 is recorded in the database 6. The refuse stored in the refuse pit 5 is thrown into the refuse incinerator 2 and burned. In the boiler 3, steam is generated using heat generated by the combustion of the waste in the waste incinerator 2. The steam generated in the boiler 3 is
Where it is generated and transmitted to meet the power needs in the factory or to sell to a power company.

【0016】このようなごみ焼却プラントにおいて、本
発明に係るごみ焼却炉の運転制御装置1は、ボイラ3か
ら発生させる蒸気発生量の値を、ごみ焼却炉2の運転能
力の範囲内で、かつ、夜間の時間帯よりも昼間の時間帯
の方が単位時間当たりの蒸気発生量が大きくなるように
決定する蒸気発生量決定手段10と、該蒸気発生量決定
手段10により決定された蒸気発生量の値に基づきごみ
焼却炉2の燃焼制御を行う燃焼制御手段20とを有する
ものである。
In such a waste incineration plant, the operation control device 1 for the waste incinerator according to the present invention sets the value of the amount of steam generated from the boiler 3 within the operating capacity of the waste incinerator 2 and Steam generation amount determining means 10 for determining that the amount of steam generated per unit time is larger in the daytime period than in the night time period, and the amount of steam generation determined by the steam generation amount Combustion control means 20 for controlling the combustion of the waste incinerator 2 based on the value.

【0017】ここで、前記蒸気発生量決定手段10は、
ごみピット5内のごみの残量及びごみの受入予定量から
焼却可能なごみ量を算出する焼却可能ごみ量算出部10
1と、ごみ焼却炉2の運転データから単位質量当たりの
ごみの発熱量を算出するごみ単位質量当たりの発熱量算
出部102と、前記焼却可能ごみ量算出部101及びご
み単位質量当たりの発熱量算出部102で算出された値
からボイラ3で発生させる蒸気発生量を算出する蒸気発
生量算出部103と、該蒸気発生量算出部103で算出
されたボイラ3で発生させる蒸気発生量をごみ焼却炉2
の運転能力の範囲内で、かつ、夜間の時間帯よりも昼間
の時間帯の方が単位時間当たりの蒸気発生量が大きくな
るように、昼間の時間帯及び夜間の時間帯のそれぞれに
おける単位時間当たりの蒸気発生量を設定する昼/夜間
蒸気発生量設定部104とを有している。以下、前記各
構成部での実施形態の一例をさらに詳しく説明する。
Here, the steam generation amount determining means 10
Incinerable waste amount calculator 10 that calculates the amount of waste that can be incinerated from the remaining amount of waste in the waste pit 5 and the expected amount of waste to be received.
1, a calorific value per unit mass of refuse to calculate calorific value of refuse per unit mass from operation data of the refuse incinerator 2, a calorific value per unit mass of refuse incinerator, and a calorific value per unit mass of refuse incinerator A steam generation amount calculation unit 103 that calculates the amount of steam generated by the boiler 3 from the value calculated by the calculation unit 102, and the amount of steam generated by the boiler 3 calculated by the steam generation amount calculation unit 103 is incinerated. Furnace 2
Unit time in the daytime and nighttime zones so that the amount of steam generated per unit time is larger in the daytime zone than in the nighttime zone within the operating capacity of And a day / night steam generation amount setting unit 104 for setting the amount of steam generation per unit. Hereinafter, an example of the embodiment in each of the components will be described in more detail.

【0018】前記焼却可能ごみ量算出部101では、ご
みピット5内のごみの残量及びごみの受入予定量から、
所定期間内、例えば一日で焼却可能なごみ量を算出す
る。ここで、ごみピット5内のごみの残量は、データベ
ース6に記録されているごみの受入量とごみピット5か
らごみ焼却炉2に投入したごみ量とから引き算により算
出され、このごみピット5内のごみの残量にごみの受入
予定量を足して、焼却可能ごみ量が求められる。なお、
ごみの受入予定量は、季節、曜日、天気、その他の変動
要因を考慮して過去のデータから推定される値である。
The incinerated waste amount calculating unit 101 calculates the amount of waste in the waste pit 5 and the estimated amount of waste to be received.
The amount of waste that can be incinerated within a predetermined period, for example, one day, is calculated. Here, the remaining amount of refuse in the refuse pit 5 is calculated by subtracting the amount of refuse received from the refuse pit 5 and the amount of refuse input into the incinerator 2 from the refuse pit 5. The amount of waste that can be incinerated is calculated by adding the expected amount of waste to the remaining amount of waste in the building. In addition,
The expected amount of garbage is a value estimated from past data in consideration of the season, the day of the week, the weather, and other fluctuation factors.

【0019】前記ごみ単位質量当たりの発熱量算出部1
02では、ごみ焼却炉2の運転データの実績値の平均、
例えば最新の過去一週間の実績値の平均からごみの単位
質量当たりの発熱量を算出する。ここで、ごみ焼却炉2
の運転データとしては、例えば炉内に投入されたごみの
量、炉内に供給された空気量及び水量、ボイラ3から発
生する蒸気量、系外に排出された排ガス量及び排ガス温
度などの炉内の物質・熱収支に関係する値をいい、これ
らの値からごみ単位質量当たりの発熱量を算出すること
ができる。なお、前記算出されたごみ単位質量当たりの
発熱量に過去の実績等から推定される変動係数を考慮し
て修正することも有効である。
The calorific value calculation unit 1 per unit mass of the refuse
In 02, the average of the actual values of the operation data of the incinerator 2
For example, the calorific value per unit mass of garbage is calculated from the average of the latest actual values in the past week. Here, garbage incinerator 2
The operation data of the furnace includes, for example, the amount of waste put into the furnace, the amount of air and water supplied to the furnace, the amount of steam generated from the boiler 3, the amount of exhaust gas discharged outside the system, and the temperature of the furnace. It refers to the values related to the material and heat balance within, and the calorific value per unit mass of refuse can be calculated from these values. It is also effective to correct the calculated calorific value per unit mass of the refuse in consideration of a coefficient of variation estimated from past results and the like.

【0020】上記ごみ単位質量当たりの発熱量算出部1
02では、ごみ焼却炉2からの最新の運転データを考慮
してごみ単位質量当たりの発熱量が算出されるが、過去
のデータに基づいた所定の値を用いてごみ単位質量当た
りの発熱量を算出することも可能である。しかし、最新
の運転データに基づいてごみ単位質量当たりの発熱量を
算出することで、蒸気発生量をより安定に制御すること
ができる。
The calorific value calculation unit 1 per unit mass of refuse
In 02, the calorific value per unit mass of refuse is calculated in consideration of the latest operation data from the incinerator 2, but the calorific value per unit mass of refuse is calculated using a predetermined value based on past data. It is also possible to calculate. However, by calculating the calorific value per unit mass of refuse based on the latest operation data, the amount of generated steam can be more stably controlled.

【0021】蒸気発生量算出部103では、まず、図2
に示した予め作成されたごみ単位質量当たりの発熱量と
ごみ単位質量当たりの蒸気発生量の関係を示す図から、
前記ごみ単位質量当たりの発熱量算出部102で算出し
たごみ単位質量当たりの発熱量に対応するごみ単位質量
当たりの蒸気発生量Sを求める。次に、前記焼却可能ご
み量算出部101で算出した一日で焼却可能なごみ量W
dと、ごみ単位質量当たりの蒸気発生量Sとから、次式
(1)に従い単位時間当たりの蒸気発生量Zm(ton/ho
ur)を算出する。
In the steam generation amount calculation unit 103, first, FIG.
From the diagram showing the relationship between the calorific value per unit mass of garbage created in advance and the amount of steam generated per unit mass of garbage shown in
The amount of steam generated per unit mass of garbage corresponding to the amount of heat generated per unit of garbage calculated by the calorific value per unit of garbage calculation unit 102 is obtained. Next, the garbage amount W that can be incinerated in one day calculated by the incinerated garbage amount calculation unit 101
d and the amount S of steam generated per unit mass of garbage, the amount of steam generated per unit time Zm (ton / ho) according to the following equation (1).
ur).

【0022】 Zm=Wd×S/24 (1) なお、一日にボイラ3から発生する蒸気発生量は、
(1)式よりWd×Sとなる。ここで、図2に示すごみ
単位質量当たりの発熱量とごみ単位質量当たりの蒸気発
生量の関係は、ごみ焼却炉2からの最新の運転データに
基づき修正することが好ましく、これにより、より正確
な蒸気発生量の制御が可能となる。
Zm = Wd × S / 24 (1) The amount of steam generated from the boiler 3 per day is as follows:
From equation (1), Wd × S is obtained. Here, the relationship between the calorific value per unit mass of refuse and the amount of steam generated per unit mass of refuse shown in FIG. 2 is preferably corrected based on the latest operation data from the refuse incinerator 2, whereby more accurate It is possible to control the amount of generated steam.

【0023】昼/夜間蒸気発生量設定部104では、夜
間の時間帯よりも昼間の時間帯の方が単位時間当たりの
蒸気発生量が大きくなるように設定を行うが、これは、
例えば電力会社への売電を考慮した場合、売電価格は一
般に電力需要の大きい昼間の時間帯の方が夜間の時間帯
より高いためである。つまり、夜間はボイラ3での蒸気
発生量を減らして低負荷で運転し、その減った分を平日
の昼間の時間帯にまわして昼間の時間帯を高負荷で運転
して昼間の発電量が多くなるように蒸気を発生させるこ
とが収益面から望ましいからである。しかし、通常昼間
の時間帯と夜間の時間帯の時間間隔は異なるため、昼間
で単位時間当たりの蒸気発生量を増やした分と夜間で単
位時間当たりの蒸気発生量を減らした分を同じにするこ
とができない。このことから、昼間の時間帯と夜間の時
間帯の時間間隔が異なることによる非対称性を考慮し
て、かつ、ごみ焼却炉の運転能力の範囲内で昼間の時間
帯と夜間の時間帯での単位時間当たりの蒸気発生量を設
定することが必要となる。
The day / night steam generation amount setting unit 104 sets the steam generation amount per unit time in the daytime period to be larger than in the night time period.
For example, when considering the sale of power to a power company, the price of electricity is generally higher in the daytime hours when power demand is high than in the nighttime hours. That is, during the night, the amount of steam generated in the boiler 3 is reduced and the operation is performed at a low load, and the reduced amount is transferred to the daytime hours on weekdays, and the daytime operation is performed at a high load during the daytime to reduce the power generation during the day. This is because it is desirable from the viewpoint of profit to generate steam so as to increase the amount. However, since the time interval between daytime and nighttime is usually different, the amount of steam generated per unit time during the daytime is the same as the amount of steam generated per unit time during the night is reduced. I can't. From this, considering the asymmetry due to the difference in the time interval between the daytime and nighttime zones, and within the operating capacity of the refuse incinerator, It is necessary to set the amount of steam generated per unit time.

【0024】昼/夜間蒸気発生量設定部104におい
て、例えば、売電価格が高い昼間時間帯を8時〜22時
までの14時間、売電価格が安い夜間時間帯を22時〜
翌8時までの10時間とした場合、単位時間当たりの蒸
気発生量Zm(ton/hour)と、昼間時間帯の単位時間当
たりの蒸気発生量の設定値Zdd(ton/hour)と夜間時
間帯の単位時間当たりの蒸気発生量の設定値Zdn(to
n/hour)の関係は、次式(2)で表される。
In the day / night steam generation amount setting unit 104, for example, the daytime period when the power selling price is high is 14 hours from 8:00 to 22:00, and the nighttime period when the power selling price is low is 22:00 to 22:00.
In the case of 10 hours until the following 8:00, the steam generation amount per unit time Zm (ton / hour), the set value of the steam generation amount per unit time in the daytime period Zdd (ton / hour), and the night time period Set value of the amount of steam generation per unit time Zdn (to
n / hour) is expressed by the following equation (2).

【0025】 Zm×24=Zdd×14+Zdn×10 (2) 図3は、昼間の時間帯を14時間、夜間の時間帯を10
時間とした場合に、昼間の時間帯と夜間の時間帯におけ
る単位時間当たりの蒸気発生量の比率と、ごみ焼却炉の
焼却負荷の関係を示した図である。図3は、(夜間時間
帯の単位時間当たりの蒸気発生量/昼間時間帯の単位時
間当たりの蒸気発生量)の値を小さくする方向、つまり
昼間時間帯の単位時間当たりの蒸気発生量を多くし、夜
間時間帯の単位時間当たりの蒸気発生量を小さくすれ
ば、昼間時間帯のごみ焼却炉の焼却負荷は上がり、夜間
時間帯のごみ焼却炉の焼却負荷は下がることを示してい
る。しかし、ごみ焼却炉には図3内に点線で示したよう
なごみ焼却炉の運転能力の範囲があり、ごみ焼却炉の運
転はこの範囲内に限られる。このため、前記夜間時間帯
の単位時間当たりの蒸気発生量の設定値Zdnと前記昼
間時間帯の単位時間当たりの蒸気発生量の設定値Zdd
との比、つまりZdn/Zddをαとおいた場合、この
αは図3の焼却負荷を表す曲線とごみ焼却炉の運転能力
の範囲を示す点線とが交わる点から右側の範囲で決定さ
れる。
Zm × 24 = Zdd × 14 + Zdn × 10 (2) FIG. 3 shows a daytime period of 14 hours and a nighttime period of 10 hours.
FIG. 4 is a diagram illustrating a relationship between a ratio of a steam generation amount per unit time in a daytime time zone and a nighttime time zone and an incineration load of a refuse incinerator in a case of time. FIG. 3 shows a direction in which the value of (the amount of steam generated per unit time in the nighttime zone / the amount of steam generated per unit time in the daytime zone) decreases, that is, the amount of steam generation per unit time in the daytime zone increases. However, if the amount of steam generated per unit time in the nighttime period is reduced, the incineration load of the refuse incinerator during the daytime increases, and the incineration load of the refuse incinerator during the nighttime decreases. However, the refuse incinerator has a range of operating capacity of the refuse incinerator as shown by a dotted line in FIG. 3, and the operation of the refuse incinerator is limited to this range. Therefore, the set value Zdn of the amount of steam generated per unit time in the nighttime zone and the set value Zdd of the amount of steam generated per unit time in the daytime zone
Is defined as α in the range on the right side from the intersection of the curve representing the incineration load in FIG. 3 and the dotted line indicating the range of the operating capacity of the waste incinerator.

【0026】前記範囲かつ1未満でαを決定すること
で、昼間時間帯の単位時間当たりの蒸気発生量の設定値
Zddと夜間時間帯の単位時間当たりの蒸気発生量の設
定値Zdnはそれぞれ次式(3)、(4)で表される。
By determining α within the above range and less than 1, the set value Zdd of the amount of steam generated per unit time in the daytime and the set value Zdn of the amount of steam generated per unit time in the nighttime are respectively Expressions (3) and (4) are used.

【0027】 Zdd=24×Zm/(14+α×10) (3) Zdn=24×Zm×α/(14+α×10) (4) 上述の昼/夜間蒸気発生量設定部104では、所定期間
として例えば一日において、電力会社への売電価格が高
い昼間時間帯と売電価格が安い夜間時間帯との時間間隔
を考慮して単位時間当たりの蒸気発生量の設定を行って
いる。しかし、休祭日における電力会社への売電価格は
昼間時間帯が夜間時間帯と同じ安い売電価格となる場合
が多いため、売電価格が高い平日の昼間と売電価格が安
い平日の夜間及び休祭日の終日とを考慮して蒸気発生量
の設定を行うことがより好ましい。
Zdd = 24 × Zm / (14 + α × 10) (3) Zdn = 24 × Zm × α / (14 + α × 10) (4) In the day / night steam generation amount setting unit 104 described above, for example, In one day, the amount of steam generated per unit time is set in consideration of a time interval between a daytime zone in which the power selling price to the power company is high and a nighttime zone in which the power selling price is low. However, the price of electricity sold to electric power companies on holidays is often the same as the price of electricity during the daytime, which is as low as during the nighttime. It is more preferable to set the steam generation amount in consideration of the holidays and all day of holidays.

【0028】以下に蒸気発生量決定手段10での他の実
施形態について説明する。
Hereinafter, another embodiment of the steam generation amount determining means 10 will be described.

【0029】焼却可能ごみ量算出部101では、ごみピ
ット5内のごみの残量及びごみの受入予定量から、所定
期間内、例えば7日で焼却可能なごみ量Wwを算出す
る。なお、ここでは、所定期間を7日として計算する以
外は前述の実施形態と同様である。
The incinerated waste amount calculation unit 101 calculates the amount of waste Ww that can be incinerated within a predetermined period, for example, seven days, from the remaining amount of waste in the waste pit 5 and the expected amount of waste to be received. Here, the process is the same as that of the above-described embodiment except that the calculation is performed with the predetermined period set to 7 days.

【0030】ごみ単位質量当たりの発熱量算出部102
でも上述の実施形態と同様に、ごみ単位質量当たりの発
熱量を算出する。
Calorific value per unit mass of waste 102
However, similarly to the above embodiment, the calorific value per unit mass of the refuse is calculated.

【0031】蒸気発生量算出部103でも前述の実施形
態と同様に、まず、図2に示した予め作成されたごみ単
位質量当たりの発熱量とごみ単位質量当たりの蒸気発生
量の関係を示す図から、前記ごみ単位質量当たりの発熱
量算出部102で算出したごみ単位質量当たりの発熱量
に対応するごみ単位質量当たりの蒸気発生量Sを求め
る。次に、前記焼却可能ごみ量算出部101で算出した
7日で焼却可能なごみ量Wwと、ごみ単位質量当たりの
蒸気発生量Sとから、次式(5)に従い単位時間当たり
の蒸気発生量Zm(ton/hour)を算出する。
In the steam generation amount calculation unit 103, similarly to the above-described embodiment, first, a diagram showing the relationship between the heat generation amount per unit mass of waste and the steam generation amount per unit mass of waste shown in FIG. Then, a steam generation amount S per unit mass of garbage corresponding to the calorific value per unit mass of garbage calculated by the calorific value per unit mass of garbage is calculated. Next, from the amount of waste Ww that can be incinerated in seven days calculated by the incinerator-related waste amount calculation unit 101 and the amount of steam generated per unit mass of waste S, the amount of steam generated Zm per unit time according to the following equation (5): (Ton / hour) is calculated.

【0032】 Zm=Ww×S/24/7 (5) 昼/夜間蒸気発生量設定部104では、前述の実施形態
と同様に、平日の売電価格が高い昼間時間帯を8時〜2
2時までの14時間、売電価格が安い夜間時間帯を22
時〜翌8時までの10時間とする。
Zm = Ww × S / 24/7 (5) The daytime / nighttime steam generation amount setting unit 104 sets the daytime time zone during which the power selling price is high on weekdays from 8:00 to 2 as in the above-described embodiment.
14 hours until 2:00, 22 hours during the night when electricity sales prices are low
10 hours from hour to 8:00 the following day.

【0033】(5)式で求めた単位時間当たりの蒸気発
生量Zm(ton/hour)と、平日の昼間時間帯の単位時間
当たりの蒸気発生量の設定値Zwd(ton/hour)と夜間
時間帯及び休祭日の単位時間当たりの蒸気発生量の設定
値Zwn(ton/hour)の関係は、7日に占める平日の日
数をn日とおいた場合、次式(6)で表される。
The steam generation amount Zm (ton / hour) per unit time obtained by the equation (5), the set value Zwd (ton / hour) of the steam generation amount per unit time in the daytime zone on weekdays, and the night time The relationship between the set value Zwn (ton / hour) of the amount of steam generated per unit time of the belt and holidays is expressed by the following equation (6), where n days are the number of weekdays occupying 7 days.

【0034】 Zm×24×7=(Zwd×14+Zwn×10)×n+ Zwn×24×(7−n) (6) 右辺第1項は昼間と夜間の売電価格が異なるn日分の総
蒸気量を表し、右辺第2項は昼間と夜間の売電価格が同
じ休祭日の(7−n)日分の総蒸気量を表している。
Zm × 24 × 7 = (Zwd × 14 + Zwn × 10) × n + Zwn × 24 × (7−n) (6) The first term on the right-hand side is the total steam for n days in which the day and night electricity sales prices are different. The second term on the right side represents the total steam amount for (7-n) days on holidays in which the daytime and nighttime power selling prices are the same.

【0035】前記夜間時間帯及び休祭日の単位時間当た
りの蒸気発生量の設定値Zwnと前記平日の昼間時間帯
の単位時間当たりの蒸気発生量の設定値Zwdとの比、
つまりZwn/Zwdをαとおいた場合、このαは図4
の焼却負荷を表す曲線とごみ焼却炉の運転能力の範囲を
示す点線とが交わる点から右側の範囲で決定される。な
お、図4には7日に占める平日の日数nをn=4,5,
6とした場合のごみ焼却炉の焼却負荷を示している。
The ratio of the set value Zwn of the amount of steam generated per unit time in the nighttime and holidays to the set value Zwd of the amount of steam generated per unit time in the daytime of the weekday,
That is, when Zwn / Zwd is set to α, this α is
Is determined in a range on the right side from a point at which a curve representing the incineration load and a dotted line indicating the range of the operating capacity of the waste incinerator intersect. In FIG. 4, the number n of weekdays occupying 7 days is n = 4, 5,
6 shows the incineration load of the refuse incinerator.

【0036】前記範囲でαを決定することで、平日の昼
間時間帯の単位時間当たりの蒸気発生量の設定値Zwd
と夜間時間帯及び休祭日の単位時間当たりの蒸気発生量
の設定値Zwnはそれぞれ次式(7)、(8)で表され
る。
By determining α in the above range, the set value Zwd of the amount of steam generated per unit time in the daytime time zone on weekdays can be obtained.
And the set value Zwn of the amount of generated steam per unit time at night time and on holidays are expressed by the following equations (7) and (8), respectively.

【0037】 Zwd=168×Zm/(14×n+α(168−14×n)) (7) Zwn=168×Zm×α/(14×n+α(168−14×n)) (8) 図5は、休祭日を考慮せずに昼間及び夜間の時間帯にお
ける蒸気発生量の値を決定した場合と休祭日の日数を考
慮して昼間及び夜間の時間帯における蒸気発生量の値を
決定した場合とを比較した図であり、終日夜間時間帯扱
いの休祭日が7日の内に2日ある場合、つまりn=5の
場合を示している。
Zwd = 168 × Zm / (14 × n + α (168−14 × n)) (7) Zwn = 168 × Zm × α / (14 × n + α (168-14 × n)) (8) FIG. The value of the amount of steam generated during daytime and nighttime without considering holidays, and the value of the amount of steam generated during daytime and nighttime considering holidays Are compared, and there is a case where there are two holidays within seven days of the all-day night time zone, that is, a case where n = 5.

【0038】休祭日の日数を考慮して蒸気発生量の決定
を行った場合、休祭日は終日にわたって平日の夜間時間
帯と同じ低負荷でごみ焼却炉が運転されるため、休祭日
の昼間の時間帯で減少した分の蒸気発生量は平日の昼間
の時間帯にまわされ、その分平日の昼間時間帯の蒸気発
生量を増やすことができる。このため、電力会社への売
電価格の高い平日の昼間時間帯の発電量を上げることが
でき、より収益性の高い運転が可能となる。
When the amount of steam generated is determined in consideration of the number of holidays, the incinerator is operated on the holidays at the same low load as during the nighttime on weekdays. The amount of steam generation reduced in the time zone is passed to the daytime hours on weekdays, and the amount of steam generation in the daytime hours on weekdays can be increased accordingly. Therefore, it is possible to increase the amount of power generated during the daytime hours on weekdays when the selling price to the power company is high, and more profitable operation is possible.

【0039】以上、蒸気発生量決定手段10での他の実
施形態について説明した。
In the above, another embodiment of the steam generation amount determining means 10 has been described.

【0040】燃焼制御手段20では、ボイラ3から発生
する蒸気発生量の値が前記蒸気発生量決定手段10によ
り決定された単位時間当たりの蒸気発生量の値となるよ
うに前記ボイラ3から発生する蒸気発生量の値を制御パ
ラメータとしてごみ焼却炉の燃焼制御を行う。
The combustion control means 20 generates the steam from the boiler 3 such that the value of the amount of steam generated from the boiler 3 becomes the value of the amount of steam generated per unit time determined by the steam generation amount determining means 10. The combustion control of the refuse incinerator is performed using the value of the amount of generated steam as a control parameter.

【0041】ここで、燃焼制御手段20は、例えば、ボ
イラ3の出口に設けた蒸気流量計からの流量信号に基づ
き、該流量信号が蒸気発生量決定手段10により決定さ
れた単位時間当たりの蒸気発生量の値となるようにごみ
焼却炉2の燃焼制御を行う。ごみ焼却炉2の燃焼制御
は、ごみ焼却炉の炉内に供給する燃焼用空気量及び蒸気
量、炉内へのごみの投入量、炉内でのごみ搬送速度等の
燃焼制御パラメータを制御することにより行うことがで
きる。
Here, the combustion control means 20, for example, based on a flow rate signal from a steam flow meter provided at the outlet of the boiler 3, calculates the flow rate signal per unit time determined by the steam generation amount determining means 10. The combustion control of the refuse incinerator 2 is performed so that the value of the generated amount is obtained. The combustion control of the refuse incinerator 2 controls combustion control parameters such as the amount of combustion air and steam supplied to the refuse incinerator, the amount of refuse charged into the furnace, and the refuse transfer speed in the furnace. It can be done by doing.

【0042】なお、前記燃焼制御手段20では、ボイラ
3からの蒸気発生量を直接制御パラメータとして、蒸気
発生量決定手段10により決定された単位時間当たりの
蒸気発生量の値となるようにごみ焼却炉2の燃焼制御を
行っているが、ごみ投入量算出手段により、前記蒸気発
生量の値をごみの質量に換算し、ごみ焼却炉2の燃焼制
御をごみの投入量を制御パラメータとして行うことも可
能である。この場合、ごみ投入量算出手段では、制御目
標である蒸気発生量決定手段10により決定された単位
時間当たりの蒸気発生量の値を、図2のごみ単位質量当
たりの発熱量とごみ単位質量当たりの蒸気発生量の関係
及びごみ単位質量当たりの発熱量算出部102で算出し
たごみの単位質量当たりの発熱量からごみの質量に換算
し、ごみ焼却炉2に投入するごみの質量を算出する。燃
焼制御手段20では、前記算出されたごみ焼却炉2に投
入するごみの質量に基づき燃焼制御を行う。目標とする
蒸気発生量の値を一旦ごみの投入量に換算して、ごみの
投入量を制御パラメータとして燃焼制御を行うことによ
り、焼却量がごみ焼却炉2の運転能力の範囲を逸脱して
しまうことを防止することが可能となる。なお、この場
合でも、ボイラ3からの蒸気発生量の値により、ごみ投
入量の補正を行うことが好ましい。蒸気量変動をより効
果的に抑えることができるからである。
The combustion control means 20 uses the amount of steam generated from the boiler 3 as a direct control parameter to incinerate the refuse so that the value of the amount of steam generated per unit time determined by the means 10 for determining the amount of generated steam is obtained. Although the combustion control of the incinerator 2 is performed, the value of the steam generation amount is converted into the mass of the garbage by the garbage input amount calculating means, and the combustion control of the refuse incinerator 2 is performed using the garbage input amount as a control parameter. Is also possible. In this case, the refuse input amount calculation means calculates the value of the amount of steam generation per unit time determined by the control means, ie, the amount of steam generation per unit time, as shown in FIG. The amount of waste generated per unit mass of refuse calculated by the calorific value per unit mass of refuse calculated by the relation between the amount of generated steam and the calorific value per unit mass of refuse is converted into the mass of refuse, and the mass of refuse to be put into the refuse incinerator 2 is calculated. The combustion control means 20 performs combustion control based on the calculated mass of the refuse to be put into the refuse incinerator 2. By temporarily converting the value of the target steam generation amount into the waste input amount and performing combustion control using the waste input amount as a control parameter, the incineration amount deviates from the range of the operating capacity of the waste incinerator 2. Can be prevented. Even in this case, it is preferable to correct the amount of waste input based on the value of the amount of steam generated from the boiler 3. This is because a variation in the amount of steam can be suppressed more effectively.

【0043】以上、本実施形態においては、ボイラ3か
ら発生させる蒸気発生量の値をまず決定し、この決定さ
れた蒸気発生量の値となるようにごみ焼却炉2の燃焼制
御を行う蒸気発生量制御を行っているため、蒸気発生量
の変動、ひいては発電量の変動を少なくすることが可能
となる。例えば電力会社へ売電を行う場合、売電量は発
電量の変動内の最低発電量で決定されるため、売電量を
多くするには発電量の変動を抑えることが極めて重要に
なる。また、蒸気発生量制御によりごみ焼却炉2の燃焼
状態を行うことで、炉内の燃焼状態を安定化させること
ができ、ダイオキシン類の発生防止効果も有する。さら
に、ごみ焼却炉2の運転データから算出される単位質量
当たりのごみの発熱量を考慮して燃焼制御を行うことで
制御を精密に行うことができ、より一層蒸気発生量の変
動、ひいては発電量の変動を抑えることが可能となる。
As described above, in the present embodiment, the value of the amount of steam generated from the boiler 3 is determined first, and the steam generation for controlling the combustion of the refuse incinerator 2 to have the determined value of the amount of steam generated. Since the amount control is performed, it is possible to reduce fluctuations in the amount of generated steam and, consequently, fluctuations in the amount of generated power. For example, when selling power to a power company, the amount of power sold is determined by the minimum amount of power generation within the fluctuations in the amount of power generation. Further, by performing the combustion state of the refuse incinerator 2 by controlling the amount of generated steam, the combustion state in the furnace can be stabilized, and the effect of preventing the generation of dioxins can be obtained. Furthermore, by performing combustion control in consideration of the heat generation amount of the waste per unit mass calculated from the operation data of the waste incinerator 2, the control can be performed precisely, and the fluctuation of the steam generation amount and the power generation can be further improved. It is possible to suppress the fluctuation of the amount.

【0044】以上、各実施形態について説明したが、本
願発明は上記各実施形態に限定されるものでなく、実施
段階ではその要旨を逸脱しない範囲で種々に変形するこ
とが可能である。また、各実施形態は可能な限り適宜組
み合わせて実施してもよく、その場合組み合わされた効
果が得られる。
Although the embodiments have been described above, the present invention is not limited to the above embodiments, and various modifications can be made in the implementation stage without departing from the scope of the invention. In addition, the embodiments may be implemented in appropriate combinations as much as possible, and in that case, the combined effects can be obtained.

【0045】[0045]

【発明の効果】以上説明したように本発明によれば、工
場内での電力需要や電力会社への売電価格を考慮した発
電量の制御を制御性良く効率的に行うことができるごみ
焼却プラントにおけるごみ焼却の運転制御方法及び運転
制御装置が提供される。
As described above, according to the present invention, refuse incineration can efficiently control the amount of power generation in consideration of the power demand in a factory and the price of power sold to a power company with good controllability. An operation control method and an operation control device for waste incineration in a plant are provided.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係るごみ焼却炉の運転制御装置を適用
したごみ焼却プラントの実施形態の一例を示す概略構成
図である。
FIG. 1 is a schematic configuration diagram showing an example of an embodiment of a waste incineration plant to which an operation control device for a waste incinerator according to the present invention is applied.

【図2】ごみ単位質量当たりの発熱量とごみ単位質量当
たりの蒸気発生量の関係を示す図である。
FIG. 2 is a diagram showing a relationship between a calorific value per unit mass of waste and a steam generation amount per unit mass of waste.

【図3】昼間の時間帯を14時間、夜間の時間帯を10
時間とした場合に、昼間の時間帯と夜間の時間帯におけ
る単位時間当たりの蒸気発生量の比率と、ごみ焼却炉の
焼却負荷の関係を示した図である。
FIG. 3 shows 14 hours in the daytime and 10 hours in the nighttime.
FIG. 4 is a diagram illustrating a relationship between a ratio of a steam generation amount per unit time in a daytime time zone and a nighttime time zone and an incineration load of a refuse incinerator in a case of time.

【図4】昼間の時間帯を14時間、夜間の時間帯を10
時間とした場合に、7日に占める平日の日数nをn=
4,5,6とした場合の昼間の時間帯と夜間の時間帯に
おける単位時間当たりの蒸気発生量の比率と、ごみ焼却
炉の焼却負荷の関係を示した図である。
FIG. 4 shows 14 hours in the daytime and 10 in the nighttime
In case of time, n = weekdays n = 7
It is the figure which showed the relationship between the ratio of the amount of steam generation per unit time in the daytime zone and the nighttime zone, and the incineration load of a refuse incinerator when it is set to 4, 5, and 6.

【図5】休祭日を考慮せずに昼間及び夜間の時間帯にお
ける蒸気発生量の値を決定した場合と休祭日の日数を考
慮して昼間及び夜間の時間帯における蒸気発生量の値を
決定した場合とを比較した図である。
FIG. 5 shows a case where the value of the steam generation amount during the daytime and nighttime is determined without considering the holidays, and a case where the value of the steam generation amount during the daytime and nighttime is determined considering the number of holidays. It is a figure which compared with the case where it did.

【符号の説明】[Explanation of symbols]

1 ごみ焼却炉の運転制御装置 2 ごみ焼却炉 3 ボイラ 4 発電設備 5 ごみピット 6 データベース 10 蒸気発生量決定手段 20 燃焼制御手段 101 焼却可能ごみ量算出部 102 ごみ単位質量当たりの発熱量算出部 103 蒸気発生量算出部 104 昼/夜間蒸気発生量設定部 DESCRIPTION OF SYMBOLS 1 Operation control apparatus of refuse incinerator 2 Refuse incinerator 3 Boiler 4 Power generation equipment 5 Refuse pit 6 Database 10 Steam generation amount determination means 20 Combustion control means 101 Incinable waste amount calculation unit 102 Heat generation amount per unit mass of waste 103 Steam generation amount calculation unit 104 Day / night steam generation amount setting unit

───────────────────────────────────────────────────── フロントページの続き (72)発明者 島本 拓幸 東京都千代田区丸の内一丁目1番2号 日 本鋼管株式会社内 Fターム(参考) 3K062 AA24 AB01 AC01 BA02 CB09 DA32 3K065 AA24 AB01 AC01 BA03 BA06 JA05 JA18  ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takuyuki Shimamoto 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. F-term (reference) 3K062 AA24 AB01 AC01 BA02 CB09 DA32 3K065 AA24 AB01 AC01 BA03 BA06 JA05 JA18

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】ごみ焼却炉と、該ごみ焼却炉の熱を利用し
て蒸気を発生させるボイラと、該ボイラで発生させた蒸
気を用いて発電を行う発電設備とを備えたごみ焼却プラ
ントにおけるごみ焼却炉の運転方法であって、ボイラか
ら発生させる蒸気発生量の値をごみ焼却炉の運転能力の
範囲内で、かつ、夜間の時間帯よりも昼間の時間帯の方
が単位時間当たりの蒸気発生量が大きくなるように決定
する蒸気発生量決定ステップと、該蒸気発生量決定ステ
ップにより決定された蒸気発生量の値に基づきごみ焼却
炉の燃焼制御を行う燃焼制御ステップとを有することを
特徴とするごみ焼却の運転制御方法。
A refuse incineration plant comprising a refuse incinerator, a boiler for generating steam using heat from the refuse incinerator, and a power generation facility for generating power using the steam generated by the boiler. A method for operating a refuse incinerator, in which the value of the amount of steam generated from the boiler is within the operating capacity of the refuse incinerator, and the unit time per day is higher in the daytime than in the nighttime. Having a steam generation amount determining step of determining the steam generation amount to be large, and a combustion control step of performing combustion control of the refuse incinerator based on the value of the steam generation amount determined by the steam generation amount determining step. Characteristic operation control method of refuse incineration.
【請求項2】ごみ焼却炉と、該ごみ焼却炉の熱を利用し
て蒸気を発生させるボイラと、該ボイラで発生させた蒸
気を用いて発電を行う発電設備とを備えたごみ焼却プラ
ントにおけるごみ焼却炉の運転制御装置であって、ボイ
ラから発生させる蒸気発生量の値をごみ焼却炉の運転能
力の範囲内で、かつ、夜間の時間帯よりも昼間の時間帯
の方が単位時間当たりの蒸気発生量が大きくなるように
決定する蒸気発生量決定手段と、該蒸気発生量決定手段
により決定された蒸気発生量の値に基づきごみ焼却炉の
燃焼制御を行う燃焼制御手段とを有することを特徴とす
るごみ焼却炉の運転制御装置。
2. A refuse incineration plant comprising: a refuse incinerator; a boiler for generating steam using heat of the refuse incinerator; and a power generation facility for generating power using the steam generated by the boiler. An operation control device for a refuse incinerator, in which the value of the amount of steam generated from the boiler is within the operating capacity of the refuse incinerator, and the unit time per day in the daytime period is shorter than the night time period. Steam generation amount determining means for determining the amount of generated steam to be large, and combustion control means for performing combustion control of the waste incinerator based on the value of the amount of generated steam determined by the steam generation amount determining means. An operation control device for a waste incinerator.
【請求項3】蒸気発生量決定手段は、ごみ焼却炉の運転
データから予め算出されたごみの単位質量当たりの蒸気
発生量を用いてボイラから発生させる蒸気発生量の値を
算出することを特徴とする請求項2に記載のごみ焼却炉
の運転制御装置。
3. The steam generation amount determining means calculates a value of a steam generation amount generated from the boiler by using a steam generation amount per unit mass of waste previously calculated from operation data of the waste incinerator. The operation control device for a waste incinerator according to claim 2, wherein
【請求項4】蒸気発生量決定手段は、所定期間内に昼夜
の時間帯が異なる特定日を1日以上含む場合に、前記特
定日の日数を考慮して昼間及び夜間の時間帯における蒸
気発生量の値を決定することを特徴とする請求項2また
は請求項3に記載のごみ焼却炉の運転制御装置。
4. The method according to claim 1, wherein when the predetermined time period includes one or more specific days having different time periods of day and night, the steam generation amount determining means considers the number of days of the specific day and generates the steam generation amount in the daytime and nighttime periods. The operation control device for a refuse incinerator according to claim 2 or 3, wherein the value of the amount is determined.
JP2000354269A 2000-11-21 2000-11-21 Method and device of controlling operation for incinerating wastes Pending JP2002162014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000354269A JP2002162014A (en) 2000-11-21 2000-11-21 Method and device of controlling operation for incinerating wastes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000354269A JP2002162014A (en) 2000-11-21 2000-11-21 Method and device of controlling operation for incinerating wastes

Publications (1)

Publication Number Publication Date
JP2002162014A true JP2002162014A (en) 2002-06-07

Family

ID=18826891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000354269A Pending JP2002162014A (en) 2000-11-21 2000-11-21 Method and device of controlling operation for incinerating wastes

Country Status (1)

Country Link
JP (1) JP2002162014A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5996762B1 (en) * 2015-11-19 2016-09-21 株式会社タクマ Waste combustion control method and combustion control apparatus to which the method is applied

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5996762B1 (en) * 2015-11-19 2016-09-21 株式会社タクマ Waste combustion control method and combustion control apparatus to which the method is applied
WO2017085941A1 (en) * 2015-11-19 2017-05-26 株式会社タクマ Waste incineration control method, and incineration control apparatus using same
JP2017096517A (en) * 2015-11-19 2017-06-01 株式会社タクマ Waste material combustion method and combustion control device applying the same
EP3379147A4 (en) * 2015-11-19 2018-12-05 Takuma Co., Ltd. Waste incineration control method, and incineration control apparatus using same

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