JPH04313604A - Method for raising temperature of steam from boiler in waste-incineration plant - Google Patents
Method for raising temperature of steam from boiler in waste-incineration plantInfo
- Publication number
- JPH04313604A JPH04313604A JP7905491A JP7905491A JPH04313604A JP H04313604 A JPH04313604 A JP H04313604A JP 7905491 A JP7905491 A JP 7905491A JP 7905491 A JP7905491 A JP 7905491A JP H04313604 A JPH04313604 A JP H04313604A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- boiler
- waste
- superheat
- incineration plant
- 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
Links
- 238000004056 waste incineration Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 17
- 230000029087 digestion Effects 0.000 claims abstract description 9
- 239000000446 fuel Substances 0.000 claims abstract description 7
- 239000002918 waste heat Substances 0.000 claims abstract description 7
- 239000010865 sewage Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 229920006395 saturated elastomer Polymers 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/04—Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
- F22B31/045—Steam generators specially adapted for burning refuse
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はごみ焼却プラント用ボイ
ラからの蒸気の高温化方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for increasing the temperature of steam from a boiler for a waste incineration plant.
【０００２】0002
【従来の技術】従来、ごみ焼却プラントでは、図２に示
すように、ごみ焼却炉１からの排ガスを熱源とするボイ
ラ２を設け排熱を回収している。そして、蒸気ドラム４
からの蒸気を過熱器３で過熱し、蒸気ヘッダ５を介して
蒸気タービン６に導き、発電している。2. Description of the Related Art Conventionally, as shown in FIG. 2, a waste incineration plant is equipped with a boiler 2 that uses exhaust gas from a waste incinerator 1 as a heat source to recover waste heat. And steam drum 4
Steam is superheated in a superheater 3 and guided to a steam turbine 6 via a steam header 5 to generate electricity.
【０００３】この場合、排ガス中にプラスチックごみ等
の燃焼により、塩素ガスその他のガスによる腐食性の成
分が含まれているため、過熱管の表面温度は３３０〜３
４０℃が限界になっいる。そこで、通常は、２０〜２５
ｋｇ／ｃｍ２ 、２１０〜２８０℃程度の過熱蒸気が発
電に利用されている。そのために、エネルギー有効利用
の面からは、かなり効率の悪い発電システムになってい
る。In this case, since the exhaust gas contains corrosive components such as chlorine gas and other gases due to the combustion of plastic waste, the surface temperature of the superheating tube is 330-330℃.
The limit is 40°C. Therefore, usually 20 to 25
kg/cm2 and superheated steam of about 210 to 280°C is used for power generation. As a result, the power generation system is quite inefficient in terms of effective energy use.
【０００４】0004
【発明が解決しようとする課題】本発明は、エネルギー
有効利用が図れるようにしたごみ焼却プラント用ボイラ
からの蒸気の高温化方法を提供することを課題とするも
のである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for increasing the temperature of steam from a boiler for a waste incineration plant, which enables effective use of energy.
【０００５】[0005]
【課題を解決するための手段】本発明の、ごみ焼却プラ
ント用ボイラからの蒸気の高温化方法は、ごみ焼却プラ
ント用ボイラから発生する蒸気を、腐食性の少ない燃料
または廃熱を利用して過熱蒸気にすることを特徴とする
ものである。[Means for Solving the Problems] The method of increasing the temperature of steam from a waste incineration plant boiler according to the present invention uses less corrosive fuel or waste heat to generate steam from a waste incineration plant boiler. It is characterized by producing superheated steam.
【０００６】[0006]
【作用】腐食性の少ない燃料または廃熱を利用して、過
熱管の腐食の問題を生じさせること無く、蒸気を過熱し
、過熱度を高め、タービン発電の出力を向上させる。[Operation] Using less corrosive fuel or waste heat, steam is superheated, the degree of superheating is increased, and the output of turbine power generation is improved without causing the problem of corrosion of superheating tubes.
【０００７】[0007]
【実施例】以下本発明の一実施例を、下水処理場２０が
、ごみ焼却炉１１に近接して設けられている場合につい
て、図１により説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. 1 in a case where a sewage treatment plant 20 is provided close to a garbage incinerator 11.
【０００８】下水処理場２０に、下水汚泥消化槽２１が
設けられ、発生した消化ガスがホルダ２２に蓄えられて
いる。この消化ガスは、メタン及び二酸化炭素を主成分
とし、一部、硫化水素や硫化メチル等の腐食性成分があ
るが、その濃度は低く、また高温ガス状態では、ごみ焼
却ガスほどの腐食性がみられない。A sewage sludge digestion tank 21 is provided in the sewage treatment plant 20, and generated digestion gas is stored in a holder 22. This digestion gas is mainly composed of methane and carbon dioxide, and has some corrosive components such as hydrogen sulfide and methyl sulfide, but their concentration is low, and in high-temperature gas conditions, it is not as corrosive as garbage incineration gas. I can't see it.
【０００９】そこで、消化ガス燃焼ボイラ１３を設け、
ボイラ１２から発生する蒸気を過熱する。例えば、ボイ
ラ１２から、高温腐食の発生しない、６０ｋｇ／ｃｍ２
、２７５℃の飽和蒸気を、ボイラ１３で６０ｋｇ／ｃ
ｍ２ 、５１０℃に過熱し、過熱度５００℃の蒸気で発
電する。[0009] Therefore, a digestion gas combustion boiler 13 is provided,
The steam generated from the boiler 12 is superheated. For example, from the boiler 12, 60 kg/cm2 that does not cause high temperature corrosion.
, 275℃ saturated steam at 60kg/c in boiler 13
m2, superheated to 510°C, and generates electricity with steam with a superheat degree of 500°C.
【００１０】こうして、消化ガス単独での発電や、ごみ
焼却プラントのみでの発電では、効率の悪い発電しかで
きなかったものが、両者を有効の活用して蒸気の加熱度
を高め、蒸気の供給エネルギーを高めることにより、発
電出力を大幅に向上させることができる。また、上記の
例のように、ボイラ１３を過熱度を高めるためにのみ利
用すれば、大型のボイラは不要であり、それ程高価な設
備を必要としない。[0010] In this way, power generation using digester gas alone or power generation using waste incineration plants alone could only generate power with low efficiency, but by effectively utilizing both, the degree of heating of steam is increased and the supply of steam is now possible. By increasing the energy, power generation output can be significantly improved. Further, as in the above example, if the boiler 13 is used only to increase the degree of superheating, a large-sized boiler is not necessary, and very expensive equipment is not required.
【００１１】また、消化ガス燃焼ボイラ１３の排ガスは
、まだ熱回収可能な温度であるため、ごみ焼却炉１１内
、またはボイラ１２の途中に送気して熱回収することも
できる。Furthermore, since the exhaust gas from the digestion gas combustion boiler 13 is still at a temperature at which heat can be recovered, the exhaust gas can also be sent into the waste incinerator 11 or halfway through the boiler 12 for heat recovery.
【００１２】なお、上記実施例は、消化ガスを利用する
場合について説明したが、他の腐食性の少ない燃料や廃
熱として、例えばごみ埋立て地のメタンガス等を利用す
ることができる。[0012] In the above embodiment, a case has been described in which digester gas is used, but other less corrosive fuels or waste heat, such as methane gas from a garbage landfill, can be used.
【００１３】[0013]
【発明の効果】本発明のごみ焼却プラント用ボイラから
の蒸気の高温化方法は、上記のようなもので、腐食性の
少ない燃料または廃熱を利用して、過熱管の腐食の問題
を生じさせること無く、蒸気を過熱し、過熱度を高め、
タービン発電の出力を向上させることができる。Effects of the Invention The method of increasing the temperature of steam from a boiler for a waste incineration plant according to the present invention is as described above, and uses less corrosive fuel or waste heat to avoid the problem of corrosion of superheated tubes. Superheats the steam and increases the degree of superheating without causing
The output of turbine power generation can be improved.
【図１】本発明方法を実施するための設備構成の一例を
示す説明図。FIG. 1 is an explanatory diagram showing an example of the equipment configuration for implementing the method of the present invention.
【図２】従来のごみ焼却プラントでの発電システムの説
明図。FIG. 2 is an explanatory diagram of a power generation system in a conventional waste incineration plant.
Claims (2)
る蒸気を、腐食性の少ない燃料または廃熱を利用して過
熱蒸気にすることを特徴とするごみ焼却プラント用ボイ
ラからの蒸気の高温化方法。1. A method for increasing the temperature of steam from a waste incineration plant boiler, which comprises converting the steam generated from the waste incineration plant boiler into superheated steam using less corrosive fuel or waste heat.
の消化ガスである請求項１に記載の蒸気の高温化方法。2. The method for increasing the temperature of steam according to claim 1, wherein the less corrosive fuel is digestion gas from a sewage treatment plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7905491A JPH04313604A (en) | 1991-04-11 | 1991-04-11 | Method for raising temperature of steam from boiler in waste-incineration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7905491A JPH04313604A (en) | 1991-04-11 | 1991-04-11 | Method for raising temperature of steam from boiler in waste-incineration plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04313604A true JPH04313604A (en) | 1992-11-05 |
Family
ID=13679184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7905491A Pending JPH04313604A (en) | 1991-04-11 | 1991-04-11 | Method for raising temperature of steam from boiler in waste-incineration plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04313604A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997046830A1 (en) * | 1996-05-31 | 1997-12-11 | L. & C. Steinmüller Gmbh | Process for generating superheated steam by heat-treating waste |
| CN101915411A (en) * | 2010-07-01 | 2010-12-15 | 山东理工大学 | Steam-water circulation system of coal mine ventilation air methane oxidation device |
| WO2013099208A1 (en) * | 2011-12-26 | 2013-07-04 | 川崎重工業株式会社 | Combustion improvement method for incinerator in complex facility, and complex facility |
| JP2020059023A (en) * | 2019-12-24 | 2020-04-16 | 三菱重工業株式会社 | Waste treatment system |
| US11839909B2 (en) | 2018-04-13 | 2023-12-12 | Mitsubishi Heavy Industries, Ltd. | Waste treatment system and waste treatment method |
-
1991
- 1991-04-11 JP JP7905491A patent/JPH04313604A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997046830A1 (en) * | 1996-05-31 | 1997-12-11 | L. & C. Steinmüller Gmbh | Process for generating superheated steam by heat-treating waste |
| CN101915411A (en) * | 2010-07-01 | 2010-12-15 | 山东理工大学 | Steam-water circulation system of coal mine ventilation air methane oxidation device |
| WO2013099208A1 (en) * | 2011-12-26 | 2013-07-04 | 川崎重工業株式会社 | Combustion improvement method for incinerator in complex facility, and complex facility |
| JP2013133983A (en) * | 2011-12-26 | 2013-07-08 | Kawasaki Heavy Ind Ltd | Combustion promoting method of incinerator in composite facility and composite facility |
| CN103958968A (en) * | 2011-12-26 | 2014-07-30 | 川崎重工业株式会社 | Combustion improvement method for incinerator in complex facility, and complex facility |
| US11839909B2 (en) | 2018-04-13 | 2023-12-12 | Mitsubishi Heavy Industries, Ltd. | Waste treatment system and waste treatment method |
| JP2020059023A (en) * | 2019-12-24 | 2020-04-16 | 三菱重工業株式会社 | Waste treatment system |
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