JPH0835405A - Power generating facility by waste incineration - Google Patents
Power generating facility by waste incinerationInfo
- Publication number
- JPH0835405A JPH0835405A JP17500694A JP17500694A JPH0835405A JP H0835405 A JPH0835405 A JP H0835405A JP 17500694 A JP17500694 A JP 17500694A JP 17500694 A JP17500694 A JP 17500694A JP H0835405 A JPH0835405 A JP H0835405A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- pipe
- reheating
- furnace
- turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
- F01K3/24—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters
- F01K3/247—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by separately-fired heaters one heater being an incinerator
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ごみ焼却による発電設
備に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generation facility for waste incineration.
【０００２】[0002]
【従来の技術】従来、図２に示すように、ごみ焼却炉５
２で得られる蒸気により発電を行う発電設備５１におい
ては、ごみ焼却炉５２における温度は、そのボイラ用加
熱管５３などの機器の構成材料に発生する腐食の関係
上、３００℃までとされており、したがってごみ焼却炉
５２で発生される蒸気は、加熱バーナ５４を備えた別の
昇温炉５５で５００℃程度まで昇温された後、発電機５
７を駆動する蒸気タービン５６に供給されていた。な
お、図２中、５８は昇温炉５５に燃焼空気を供給する送
風機、５９は昇温炉５５内に配置された過熱管である。2. Description of the Related Art Conventionally, as shown in FIG.
In the power generation equipment 51 for generating power with the steam obtained in 2, the temperature in the refuse incinerator 52 is set to 300 ° C. due to the corrosion generated in the constituent materials of the boiler heating pipe 53 and other equipment. Therefore, the steam generated in the refuse incinerator 52 is heated up to about 500 ° C. in another heating furnace 55 equipped with a heating burner 54, and then the generator 5
Was supplied to a steam turbine 56 that drives the No. 7. In FIG. 2, 58 is a blower for supplying combustion air to the temperature raising furnace 55, and 59 is a superheater tube arranged in the temperature raising furnace 55.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上述したよ
うに、昇温炉５５で蒸気を３００℃から５００℃程度ま
で昇温させる際に、使用する燃料は天然ガスまたは石油
が使用されており、昇温のためのコストが高くつくとい
う欠点があり、最近、廃プラスチックなどから油を回収
する油回収技術が提案されており、この回収油を使用す
ることが考えられる。By the way, as described above, when the temperature of the steam is raised from 300 ° C. to 500 ° C. in the temperature raising furnace 55, the fuel used is natural gas or petroleum, There is a drawback that the cost for raising the temperature is high, and recently, an oil recovery technique for recovering oil from waste plastic or the like has been proposed, and it is conceivable to use this recovered oil.
【０００４】しかし、廃プラスチックなどから回収され
た回収油には、塩素分が多く含まれており、この回収油
を、上述したような昇温炉に、そのまま使用することが
できないという問題があった。However, the recovered oil recovered from waste plastics contains a large amount of chlorine, and there is a problem in that the recovered oil cannot be used as it is in the above-described temperature rising furnace. It was
【０００５】そこで、本発明は上記問題を解消し得るご
み焼却による発電設備を提供することを目的とする。Therefore, an object of the present invention is to provide a power generation facility by incineration that can solve the above problems.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するた
め、本発明のごみ焼却による発電設備は、ボイラ用加熱
管を有するごみ焼却炉と、このボイラ用加熱管により発
生された蒸気を過熱管に導くとともに回収油の燃焼によ
り昇温させる蒸気昇温炉と、この蒸気昇温炉で昇温され
た蒸気が供給される高圧タービン部およびこの高圧ター
ビン部から排出された蒸気を上記蒸気昇温炉に設けられ
た再加熱管に導くとともにこの再加熱された蒸気が供給
される蒸気タービン部を有する蒸気タービンと、この蒸
気タービンにより駆動される発電機とを具備し、かつ上
記蒸気昇温炉内において、上記過熱管の下方に再加熱管
を配置したものである。In order to solve the above-mentioned problems, a power generation facility for waste incineration according to the present invention is a waste incinerator having a boiler heating tube, and steam generated by the boiler heating tube is heated by a superheating tube. And a steam heating furnace that raises the temperature by burning the recovered oil, a high-pressure turbine section to which the steam heated in the steam heating furnace and the steam discharged from the high-pressure turbine section are heated. A steam turbine having a steam turbine portion which is guided to a reheating pipe provided in the furnace and which is supplied with the reheated steam; and a generator driven by the steam turbine, and the steam temperature rising furnace Inside, a reheating tube is arranged below the superheating tube.
【０００７】[0007]
【作用】上記の構成によると、ごみ焼却炉から送られて
くる所定温度以下の蒸気を、蒸気昇温炉の過熱管にて加
熱する際に、その加熱温度を低くするとともに、高圧タ
ービン部から排出された蒸気を、過熱管より下方に配置
された再加熱管にて加熱し、そしてこの加熱された蒸気
を再熱タービン部に供給するようにしたので、ごみ焼却
炉から供給される蒸気を、蒸気昇温炉において、高温に
過熱する必要がなく、したがって蒸気昇温炉内での再加
熱温度を、廃プラスチックなどから得た回収油に含まれ
ている塩素による高温腐食の発生する温度以下に抑える
ことができる。According to the above construction, when heating the steam sent from the refuse incinerator below the predetermined temperature in the superheater tube of the steam temperature raising furnace, the heating temperature is lowered and the steam from the high pressure turbine section is also reduced. The discharged steam is heated by a reheating pipe arranged below the superheat pipe, and this heated steam is supplied to the reheat turbine section. In a steam heating furnace, there is no need to overheat to a high temperature, so the reheating temperature in the steam heating furnace is below the temperature at which high temperature corrosion due to chlorine contained in recovered oil obtained from waste plastic etc. occurs. Can be suppressed to
【０００８】[0008]
【実施例】以下、本発明の一実施例を図１に基づき説明
する。図１に示すように、本実施例におけるごみ焼却に
よる発電設備１は、ボイラ用加熱管３および蒸気ドラム
４を有するごみ焼却炉２と、上方から下方に向けて順番
に、空気予熱管６、過熱管７および再加熱管８が配置さ
れるとともに廃プラスチックなどから得た回収油（還元
油ともいう）を燃料とする加熱バーナ９が設けられた蒸
気昇温炉５と、この蒸気昇温炉５で過熱された蒸気が供
給される高圧タービン部１２、およびこの高圧タービン
部１２からの蒸気を再加熱管８で再加熱した後、この蒸
気が供給される再熱タービン部１３を有する蒸気タービ
ン１１と、この蒸気タービン１１により駆動される発電
機１４と、上記蒸気タービン１１の再熱タービン部１３
から排出された蒸気を復水させる復水器１５と、この復
水器１５からの復水を溜める復水タンク１６と、この復
水タンク１６内の復水を導いて加熱するとともに脱気を
行う脱気器１７とを具備し、またこの脱気器１７内の水
をごみ焼却炉２のボイラ用加熱管３に供給する給水管１
８と、上記ボイラ用加熱管３からの蒸気を蒸気昇温炉５
の過熱管７に移送する（導く）第１蒸気移送管２１と、
過熱管７からの蒸気を蒸気タービン１１の高圧タービン
部１２に移送する第２蒸気移送管２２と、この高圧ター
ビン部１２から排出された蒸気を再加熱管８に供給する
第３蒸気移送管２３と、この再加熱管８内の蒸気を再熱
タービン部１３に移送する第４蒸気移送管２４とから構
成されている。なお、蒸気昇温炉５に、燃焼空気を供給
する送風機２５が設けられるとともに、この送風機２５
からの燃焼空気は、空気予熱管６を経て蒸気昇温炉５の
下部燃焼室内に供給されるように構成されている。ま
た、過熱管７の途中には、減温用の注水管１９が接続さ
れている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. As shown in FIG. 1, a power generation facility 1 for waste incineration according to the present embodiment includes a waste incinerator 2 having a boiler heating tube 3 and a steam drum 4, an air preheating tube 6 in order from top to bottom, A steam heating furnace 5 provided with a heating burner 9 in which a recovered oil (also referred to as reducing oil) obtained from waste plastic or the like is provided as well as a superheating pipe 7 and a reheating pipe 8 and the steam heating furnace. A steam turbine having a high-pressure turbine section 12 to which superheated steam is supplied, and a reheat turbine section 13 to which the steam is supplied after reheating the steam from the high-pressure turbine section 12 by a reheating pipe 8. 11, a generator 14 driven by the steam turbine 11, and a reheat turbine section 13 of the steam turbine 11.
The condenser 15 for condensing the steam discharged from the condenser 15, the condensate tank 16 for accumulating the condensate from the condenser 15, and the condensate in the condensate tank 16 are guided to heat and deaerated. Water supply pipe 1 for supplying water in the deaerator 17 to the boiler heating pipe 3 of the refuse incinerator 2
8 and the steam from the boiler heating tube 3 to the steam heating furnace 5
A first vapor transfer pipe 21 that is transferred (guided) to the superheat pipe 7 of
A second steam transfer pipe 22 that transfers the steam from the superheat pipe 7 to the high-pressure turbine unit 12 of the steam turbine 11, and a third steam transfer pipe 23 that supplies the steam discharged from the high-pressure turbine unit 12 to the reheating pipe 8. And a fourth steam transfer pipe 24 for transferring the steam in the reheating pipe 8 to the reheat turbine unit 13. The steam temperature raising furnace 5 is provided with a blower 25 for supplying combustion air, and the blower 25
The combustion air from (1) is supplied to the lower combustion chamber of the steam temperature raising furnace 5 via the air preheating pipe 6. Further, a water injection pipe 19 for temperature reduction is connected in the middle of the superheat pipe 7.
【０００９】上記構成において、ボイラ用加熱管３内で
３００℃付近まで加熱された蒸気は、蒸気昇温炉５の過
熱管７に送られ、ここで燃焼される回収油の燃焼熱によ
り、例えば３８０℃程度まで過熱される。In the above structure, the steam heated up to about 300 ° C. in the boiler heating pipe 3 is sent to the superheat pipe 7 of the steam temperature raising furnace 5 and, for example, by the heat of combustion of recovered oil burned therein, Overheated to about 380 ° C.
【００１０】そして、３８０℃の蒸気が、高圧タービン
部１２に送られて発電機１４を駆動した後、この高圧タ
ービン部１２から排出された蒸気は、再加熱管８で、例
えば１８０℃から２２０℃まで再加熱される。After steam of 380 ° C. is sent to the high-pressure turbine section 12 to drive the generator 14, the steam discharged from the high-pressure turbine section 12 is reheated in the reheating pipe 8, for example, from 180 ° C. to 220 ° C. Reheat to ℃.
【００１１】この再加熱された蒸気は、蒸気タービン１
１の再熱タービン部１３に供給され、発電機１４を駆動
する。なお、再熱タービン部１３から排出された排気蒸
気は復水器１５で復水された後、復水タンク１６から脱
気器１７に移送され、ここで高圧タービン部１２からの
抽気蒸気により加熱され、ボイラ給水として、再度、ご
み焼却炉２側に供給される。This reheated steam is used in the steam turbine 1.
It is supplied to the reheat turbine section 13 of No. 1 and drives the generator 14. The exhaust steam discharged from the reheat turbine unit 13 is condensed in the condenser 15 and then transferred from the condensate tank 16 to the deaerator 17, where it is heated by the extracted steam from the high-pressure turbine unit 12. Then, it is supplied to the waste incinerator 2 side again as boiler feed water.
【００１２】このように、ごみ焼却炉２から送られてく
る３００℃以下の蒸気を、蒸気昇温炉５の過熱管７にて
加熱する際に、その加熱温度を低くするとともに、高圧
タービン部１２から排出された蒸気を、過熱管７より下
方に配置された再加熱管８にて再加熱して再熱タービン
部１３に供給するようにしているので、ごみ焼却炉２か
ら供給される蒸気を、蒸気昇温炉５にて高温に過熱する
必要がなく、したがって蒸気昇温炉５内での加熱温度
を、廃プラスチックなどから得られた回収油に含まれて
いる塩素による高温腐食が発生する温度以下で、その運
転を行うことができる。As described above, when the steam having a temperature of 300 ° C. or less sent from the refuse incinerator 2 is heated by the superheater pipe 7 of the steam temperature raising furnace 5, the heating temperature is lowered and the high pressure turbine section is provided. Since the steam discharged from 12 is reheated by the reheating pipe 8 arranged below the superheat pipe 7 and supplied to the reheat turbine unit 13, the steam supplied from the refuse incinerator 2 Is not required to be superheated to a high temperature in the steam heating furnace 5, and therefore the heating temperature in the steam heating furnace 5 is high temperature corrosion due to chlorine contained in recovered oil obtained from waste plastic or the like. The operation can be performed at a temperature equal to or lower than the temperature at which
【００１３】すなわち、蒸気昇温炉５の熱源として、廃
プラスチックなどから得られた回収油を使用することが
できるため、石油などを使用する場合に比べて、非常
に、経済的である。That is, since recovered oil obtained from waste plastic or the like can be used as the heat source of the steam temperature raising furnace 5, it is much more economical than the case of using petroleum or the like.
【００１４】以下、従来例の発電設備と、本実施例の発
電設備とについて、下記に示す同一条件の下で必要な経
費を求め、その比較を行った結果について説明する。計
算条件は下記の通りである。The following is a description of the results of comparison between the power generation equipment of the conventional example and the power generation equipment of the present embodiment, which are required costs under the same conditions shown below. The calculation conditions are as follows.
【００１５】ごみ焼却能力（Ｒ）＝ 600t/日、ごみ発熱
量（低位，Ｈu ）＝3000kcal/kg 、 給水温度； 140℃、ボイラ効率＝84％、 高圧タービン部蒸気呑込率＝98.5％、タービン背圧＝0.
22ata 、タービン機械効率（ηTm）＝0.975、発電機効
率（ηGm）＝0.97、 場内利用抽気量（脱気器分含まず）；５ata × 175℃×
2000kg/h相当量（ｈEX＝669 ）、売電単価（年平均）＝
８円/kWh 但し、各記号および添字は下記の意味を示す。 Ｗ；蒸気流量（kg/h）、ｈ；エンタルピ（kcal/kg ）、
ｘ：タービン排気乾き度（−）、ηE ；発電端熱効率、
Ｅ；発電出力（kW）、Ｂ；回収油燃焼量（kg/h）HT；高
圧タービン部、RT；再熱タービン部、 i；入口、 B；出
口、EX；抽気、SH；過熱管、RH；再加熱管 (1) 従来例を使用したごみ焼却による発電出力［］ ボイラ出口蒸気流量；109570 kg/h ボイラ入口給水エンタルピ；141 kcal/kg ボイラ出口蒸気条件；30ata ×300 ℃（ｈSH＝716 ） タービン入口蒸気流量（ＷHTi ）＝109570kg/h 抽気量（脱気器分含む，ＷEX）＝16310kg/h タービン入口蒸気条件；28ata ×295 ℃（ｈHTi ＝714
） タービン内抽気点蒸気条件：８ata × 185℃（ｈEX＝66
9 ） タービン排気蒸気乾き度；0.88（ｈHTE ＝557 ） タービン内部効率；0.80（タービン出口蒸気エンタルピ
算出根拠） Ｅ＝｛ＷHTi ×（ｈHTi −ｈEX）＋（ＷHTi −ＷEX）×（ｈEX−ｈHTE ）｝ ×ηTm×ηGm/860 ＝｛109570×（ 714−669 ）＋（109570−16310 ）×（ 669−557 ）｝ × 0.975×0.97/860 ＝16910kW ηE ＝Ｅ×860/（Ｒ×1000/24 ）/ Ｈu ＝0.194 (2) 本実施例を使用したごみ焼却による発電出力［］ ボイラ出口蒸気条件；82ata ×300 ℃（ｈSH＝665 ） ボイラ給水エンタルピ；142kcal/kg ボイラ出口蒸気流量（ＷSH）；120460kg/h 過熱管出口蒸気条件；80ata ×380 ℃（ｈSHP＝738 ） 蒸気タービン入口蒸気流量（ＷHTi ）；120460kg/h 高圧タービン部入口蒸気条件；79ata ×375 ℃（ｈHTi
＝735 ） 高圧タービン部出口蒸気条件； 11ata×183 ℃（出口乾
き度0.983 、ｈHTE ＝656 ） 高圧タービン部出口抜出し蒸気流量（ＷEX）＝18340kg/
h （場内利用熱および脱気器用） 再熱蒸気流量（ＷRH）＝102120kg/h 再加熱管出口蒸気条件；10ata × 220℃（ｈRHE ＝687
） 再熱タービン部入口蒸気条件； 9ata × 215℃（ｈRTi
＝685 ） 再熱タービン部出口蒸気条件；0.22ata （乾き度＝0.8
9、ｈRTE ＝562 ） タービン内部効率；0.84（タービン出口蒸気エンタルピ
算出根拠） 回収油の低位発熱量（ＨP ）；10000kcal/kg 「蒸気昇温炉」の熱効率（ηP ）；0.92 回収油の製造原価（PP）；２万円／トン Ｅ＝｛ＷHTi ×（ｈHTi −ｈHTE ） ＋（ＷHTi −ＷEX）×（ｈRTi −ｈRTE ）｝×ηTm×ηGm/860 ＝｛120460×（ 735−656 ） ＋（120460−18340 ）×（ 685−562 ）｝× 0.975×0.97/860 ＝24280kW Ｂ＝｛ＷSH×（ｈSHP −ｈSH）＋ＷRH×（ｈRHE −ｈHTE ）｝ / （ＨP ×ηP ） ＝｛120460×（738 −665 ）＋102120×（687 −656 ）｝ / （10000 ×0.92） ＝1300kg/h 売電収入と回収油の燃料費との比較 (1) 年間売電収入増大分（Ｋ1 億円／年） Ｋ1 ＝（Ｅ−Ｅ） kｗ×8000h/年×８円/kＷh/108 ＝（ 24280−16910 ）×8000×８/108 ＝4.72億円／年 (2) 回収油の年間コスト（Ｋ2 億円／年） Ｋ2 ＝Ｂkg/h×8000h/年／（1000kg／トン）×２万円／トン／104 ＝1300×8000/1000 ×2 ／104 ＝2.08億円／年 (3) 差額：Ｋ1 −Ｋ2 ＝2.64億円／年 このように、設備費および運転経費の比較においてメリ
ットがある。The waste incineration capacity (R) = 600t / day, waste heating value (low, H u) = 3000kcal / kg , feed water temperature; 140 ° C., boiler efficiency = 84%, the high-pressure turbine part steam呑込rate = 98.5% , Turbine back pressure = 0.
22ata, turbine mechanical efficiency (η Tm ) = 0.975, generator efficiency (η Gm ) = 0.97, on-site use air extraction amount (not including deaerator); 5ata × 175 ° C ×
2000kg / h equivalent (h EX = 669), unit price of electric power sales (annual average) =
8 yen / kWh However, each symbol and subscript have the following meanings. W: Steam flow rate (kg / h), h: Enthalpy (kcal / kg),
x: Dryness of turbine exhaust (-), η E ; Thermal efficiency at power generation end,
E: Power generation output (kW), B: Recovery oil combustion amount (kg / h) HT: High pressure turbine section, RT: Reheat turbine section, i: Inlet, B: Outlet, EX: Bleed air, SH: Superheated tube, RH ; Reheat pipe (1) Power output by waste incineration using conventional example [] Boiler outlet steam flow rate; 109570 kg / h Boiler inlet feed water enthalpy; 141 kcal / kg Boiler outlet steam condition; 30ata x 300 ℃ (h SH = 716) comprising a turbine inlet steam flow rate (W HTi) = 109570kg / h extraction amount (deaerator min, W EX) = 16310kg / h turbine inlet steam conditions; 28ata × 295 ℃ (h HTi = 714
) Turbine extraction point steam condition: 8ata × 185 ℃ (h EX = 66
9) turbine exhaust steam dryness fraction; 0.88 (h HTE = 557) turbine internal efficiency; 0.80 (turbine outlet steam enthalpy calculation basis) E = {W HTi × ( h HTi -h EX) + (W HTi -W EX) × (H EX −h HTE )} × η Tm × η Gm / 860 = {109570 × (714-669) + (109570-16310) × (669-557)} × 0.975 × 0.97 / 860 = 16910kW η E = E × 860 / (R × 1000/24) / H u = 0.194 (2) Power generation output by waste incineration using this embodiment [] Boiler outlet steam condition; 82ata × 300 ℃ (h SH = 665) Boiler feed water enthalpy; 142kcal / kg Boiler outlet steam flow rate (W SH ); 120460kg / h Superheated tube outlet steam condition; 80ata x 380 ℃ (h SHP = 738) Steam turbine inlet steam flow rate ( WHTi ); 120460kg / h High pressure turbine part inlet steam condition ; 79ata x 375 ℃ (h HTi
= 735) High-pressure turbine section outlet steam condition; 11ata × 183 ℃ (Outlet dryness 0.983, h HTE = 656) High-pressure turbine section outlet steam flow rate (W EX ) = 18340kg /
h (for heat used in the field and deaerator) Reheat steam flow rate (W RH ) = 102120kg / h Reheat pipe outlet steam condition: 10ata x 220 ℃ (h RHE = 687
) Reheat turbine section inlet steam condition: 9ata × 215 ℃ (h RTi
= 685) Reheat turbine section outlet steam condition: 0.22ata (Dryness = 0.8
9, h RTE = 562) turbine internal efficiency; 0.84 (turbine outlet steam enthalpy calculation basis) lower calorific value of recovered oil (H P); 10000kcal / kg thermal efficiency of "vapor NoboriAtsushiro" (eta P); 0.92 recovered oil cost of production (P P); 2 yen / ton E = {W HTi × (h HTi -h HTE) + (W HTi -W EX) × (h RTi -h RTE)} × η Tm × η Gm / 860 = {120460 x (735-656) + (120460-18340) x (685-562)} x 0.975 x 0.97 / 860 = 24280kW B = {W SH x (h SHP -h SH ) + W RH x (h RHE -H HTE )} / (H P × η P ) = {120460 × (738 −665) +102 120 × (687 −656)} / (10000 × 0.92) = 1300 kg / h Power sales income and fuel cost of recovered oil comparison of (1) year power sales revenue increment (K 1 billion / year) K 1 = (E-E ) kw × 8000h / year × 8 yen / kWh / 10 8 = (24280-16910 ) × 8000 × 8 / 10 8 = 472 million yen / year (2) annual cost of recovered oil (K 2 billion / year) K 2 = Bk g / h × 8000h / year / (1000kg / ton) × 20,000 yen / ton / 10 4 = 1300 × 8000/1000 × 2/10 4 = 208 million yen / year (3) Difference: K 1 −K 2 ＝ 260 million yen / year In this way, there is merit in comparing equipment costs and operating costs.
【００１６】[0016]
【発明の効果】以上のように本発明の構成によると、ご
み焼却炉から送られてくる所定温度以下の蒸気を、蒸気
昇温炉の過熱管にて加熱する際に、その加熱温度を低く
するとともに、高圧タービン部から排出された蒸気を、
過熱管より下方に配置された再加熱管にて加熱し、そし
てこの加熱された蒸気を再熱タービン部に供給するよう
にしたので、ごみ焼却炉から供給される蒸気を、蒸気昇
温炉において、高温に過熱する必要がなく、したがって
蒸気昇温炉内での再加熱温度を、廃プラスチックなどか
ら得た回収油に含まれている塩素による高温腐食の発生
する温度以下に抑えることができる。As described above, according to the configuration of the present invention, when the steam sent from the refuse incinerator at a predetermined temperature or lower is heated by the superheater tube of the steam heating furnace, the heating temperature is lowered. The steam discharged from the high pressure turbine
The reheat pipe placed below the superheat pipe was used for heating, and this heated steam was supplied to the reheat turbine section.Therefore, the steam supplied from the refuse incinerator was used in the steam heating furnace. Therefore, it is not necessary to superheat to a high temperature, so that the reheating temperature in the steam temperature raising furnace can be suppressed to a temperature at which high temperature corrosion due to chlorine contained in recovered oil obtained from waste plastic or the like occurs.
【００１７】すなわち、蒸気昇温炉の熱源として、回収
油を使用することができるため、石油などの効果な燃料
を使用する場合に比べて、非常に経済的である。That is, since the recovered oil can be used as the heat source of the steam heating furnace, it is very economical as compared with the case of using an effective fuel such as petroleum.
【図１】本発明の一実施例における発電設備の概略構成
を示す図である。FIG. 1 is a diagram showing a schematic configuration of a power generation facility according to an embodiment of the present invention.
【図２】従来例における発電設備の概略構成を示す図で
ある。FIG. 2 is a diagram showing a schematic configuration of a power generation facility in a conventional example.
１ 発電設備 ２ ごみ焼却炉 ３ ボイラ用加熱管 ５ 蒸気昇温炉 ７ 過熱器 ８ 再加熱管 ９ 加熱バーナ １１ 蒸気タービン １２ 高圧タービン部 １３ 再熱タービン部 １４ 発電機 1 Power Generation Equipment 2 Waste Incinerator 3 Boiler Heating Tube 5 Steam Heating Furnace 7 Superheater 8 Reheating Tube 9 Heating Burner 11 Steam Turbine 12 High Pressure Turbine Section 13 Reheating Turbine Section 14 Generator
Claims (1)
のボイラ用加熱管により発生された蒸気を過熱管に導く
とともに回収油の燃焼により昇温させる蒸気昇温炉と、
この蒸気昇温炉で昇温された蒸気が供給される高圧ター
ビン部およびこの高圧タービン部から排出された蒸気を
上記蒸気昇温炉に設けられた再加熱管に導くとともにこ
の再加熱された蒸気が供給される再熱タービン部を有す
る蒸気タービンと、この蒸気タービンにより駆動される
発電機とを具備し、かつ上記蒸気昇温炉内において、上
記過熱管の下方に再加熱管を配置したことを特徴とする
ごみ焼却による発電設備。1. A refuse incinerator having a boiler heating tube, a steam temperature raising furnace which guides steam generated by the boiler heating tube to a superheating tube and raises temperature by burning recovered oil,
The high-pressure turbine section to which the steam heated in the steam heating furnace is supplied and the steam discharged from the high-pressure turbine section are guided to a reheating pipe provided in the steam heating furnace, and the reheated steam is introduced. A steam turbine having a reheat turbine part to which is supplied, and a generator driven by the steam turbine, and a reheat pipe is arranged below the superheat pipe in the steam temperature raising furnace. Power generation equipment by incineration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17500694A JP2806805B2 (en) | 1994-07-27 | 1994-07-27 | Power generation facilities by garbage incineration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17500694A JP2806805B2 (en) | 1994-07-27 | 1994-07-27 | Power generation facilities by garbage incineration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0835405A true JPH0835405A (en) | 1996-02-06 |
| JP2806805B2 JP2806805B2 (en) | 1998-09-30 |
Family
ID=15988572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17500694A Expired - Fee Related JP2806805B2 (en) | 1994-07-27 | 1994-07-27 | Power generation facilities by garbage incineration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2806805B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160110A (en) * | 1996-11-27 | 1998-06-19 | Mitsubishi Heavy Ind Ltd | Power generation plant combined with refuse incineration |
| CN102425802A (en) * | 2011-12-16 | 2012-04-25 | 亿恒节能科技江苏有限公司 | Air blowing dehumidifying and heating steam boiler system with deaerator |
| CN102606236A (en) * | 2012-03-22 | 2012-07-25 | 深圳市炬能生物质气化科技有限公司 | Garbage disposal waste heat power generation system with internal steam pipe |
| CN110578568A (en) * | 2019-09-19 | 2019-12-17 | 东方电气集团东方汽轮机有限公司 | External reheating power generation system for garbage power generation |
-
1994
- 1994-07-27 JP JP17500694A patent/JP2806805B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160110A (en) * | 1996-11-27 | 1998-06-19 | Mitsubishi Heavy Ind Ltd | Power generation plant combined with refuse incineration |
| CN102425802A (en) * | 2011-12-16 | 2012-04-25 | 亿恒节能科技江苏有限公司 | Air blowing dehumidifying and heating steam boiler system with deaerator |
| CN102606236A (en) * | 2012-03-22 | 2012-07-25 | 深圳市炬能生物质气化科技有限公司 | Garbage disposal waste heat power generation system with internal steam pipe |
| CN110578568A (en) * | 2019-09-19 | 2019-12-17 | 东方电气集团东方汽轮机有限公司 | External reheating power generation system for garbage power generation |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2806805B2 (en) | 1998-09-30 |
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