JPS6056248B2 - gasification complex plant - Google Patents
gasification complex plantInfo
- Publication number
- JPS6056248B2 JPS6056248B2 JP130879A JP130879A JPS6056248B2 JP S6056248 B2 JPS6056248 B2 JP S6056248B2 JP 130879 A JP130879 A JP 130879A JP 130879 A JP130879 A JP 130879A JP S6056248 B2 JPS6056248 B2 JP S6056248B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- gas turbine
- gasification
- gas
- compressor
- 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
Links
Description
【発明の詳細な説明】
本発明は空気を用いガス化を行なう加圧ガス化炉を有す
るガスタービン複合プラントに係り、特に、ガス化炉の
運転を円滑とする運転方式に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas turbine complex plant having a pressurized gasifier that performs gasification using air, and particularly relates to an operation method for smoothly operating the gasifier.
従来の加圧ガス化炉を有するガスタービン複合プラット
としては第１図に示すものが用いられている。As a conventional gas turbine composite platform having a pressurized gasifier, the one shown in FIG. 1 is used.
このプラントは圧縮機２、燃焼器３、ガスタービン４、
負荷５よりなるガスタービン、中間冷却器６、ブースト
圧縮機８、ブースト圧縮機駆動用蒸気タービン１３、、
ガス化炉１１およびガス精製系１２より構成されている
。This plant consists of a compressor 2, a combustor 3, a gas turbine 4,
A gas turbine consisting of a load 5, an intercooler 6, a boost compressor 8, a steam turbine 13 for driving the boost compressor,
It is composed of a gasification furnace 11 and a gas purification system 12.
その作用を説明すると、空気１は圧縮機２て昇圧された
後に燃焼用空気とガス化用空気に分けられる。ガス化炉
用空気は、中間冷却器６内て冷却水７により冷却された
後、ブースト圧縮機８によりさらに昇圧される。昇圧さ
れた空気９はガス化炉１１に導かれて石炭１０はガス化
され、ガス化したガスはガス精製系１２で処理されガス
タービン燃焼器１３て燃焼し、ガスタービンを駆動する
。ガス化炉１１は、供給空気量、石炭量の変化および炉
内圧力の変化により反応が変化し、炉温度、発生ガスの
性状が変化する。To explain its operation, air 1 is pressurized by a compressor 2 and then divided into combustion air and gasification air. The air for the gasifier is cooled by the cooling water 7 in the intercooler 6, and then further pressurized by the boost compressor 8. The pressurized air 9 is guided to a gasification furnace 11 to gasify coal 10, and the gasified gas is processed in a gas purification system 12 and combusted in a gas turbine combustor 13 to drive a gas turbine. In the gasifier 11, the reaction changes due to changes in the amount of air supplied, the amount of coal, and the pressure inside the furnace, and the furnace temperature and properties of the generated gas change.
また、その部分負荷運転は、流動層形式の炉ては流動層
を形成する最低速度から制限されるし、いづれの形式の
炉ても発生ガス性状を一定とする事が不可能なためにポ
リ限を受ける。したがつて、この方式のプラントては部
分負荷運転の範囲は限定されるのて、炉の基数を増加し
、一部の炉を停止させる方式によりその運転範囲を広く
する事が考えられている。しかし、炉を停止させる事は
、再起動を容易にするため炉の保温等を行なわなければ
ならなく、さらに変動する負荷の要求に応じて性状一定
の燃料ガスを発生させる事は非常に困難である。本発明
の目的は、負荷要求の減少時に安定した性状の燃料ガス
の供給を行ない部分負荷運転の範囲を広くし、しかも運
用効率を低下させないガス化複合プラントを提供するこ
とにある。In addition, partial load operation is limited by the minimum speed required to form a fluidized bed in a fluidized bed type furnace, and because it is impossible to keep the generated gas properties constant in any type of furnace, limited. Therefore, in this type of plant, the range of partial load operation is limited, and it is being considered to widen the range of operation by increasing the number of furnaces and shutting down some of the furnaces. . However, stopping the furnace requires doing things such as keeping it warm to make it easier to restart, and it is extremely difficult to generate fuel gas with constant properties in response to fluctuating load demands. be. SUMMARY OF THE INVENTION An object of the present invention is to provide a combined gasification plant that supplies fuel gas with stable properties when load demands are reduced, widens the range of partial load operation, and does not reduce operational efficiency.
本発明の特徴とするところは、ガス化炉用空気を昇圧す
る圧縮機とガス化炉との間に貯気槽を設けて、この圧縮
機をガス化燃料で運転される負荷駆動用と別系統のガス
タービンにより駆動する事により、負荷要求の減少また
は停止時に、ガス化炉の運転をその部分負荷運転が可能
な範囲に保ち、余剰に発生したガス化燃料で、このガス
タービンを駆動して空気を高圧化し貯気槽に貯えるよう
にしたものである。A feature of the present invention is that an air storage tank is provided between a compressor that boosts the pressure of air for the gasifier and the gasifier, and this compressor is separated from the one for driving the load operated by gasified fuel. By being driven by the system's gas turbine, when the load demand is reduced or stopped, the operation of the gasifier is maintained within the range that allows partial load operation, and the excess gasified fuel is used to drive this gas turbine. The air is pressurized and stored in an air storage tank.
第２図は本発明の一実施例を示すものてある。FIG. 2 shows an embodiment of the present invention.
圧縮機２、燃焼器３、ガスタービン４は負荷５駆動用の
ガスタービンである。圧縮機１６、燃焼器１７、ガスタ
ービン１８は圧縮機１９を駆動するものである。圧縮機
１９とガス化炉１１との間に貯気槽２２が設けてあり、
ガス化炉１１で発生したガスはガス精製系１２で処理さ
れる。圧縮機２、燃焼器３、ガスタービン４で構成され
るガスタービンは通常のガスタービンであり、燃料とし
てガス化燃料を用いる点のみが特殊であり負荷５を駆動
する。The compressor 2, combustor 3, and gas turbine 4 are gas turbines for driving a load 5. The compressor 16, combustor 17, and gas turbine 18 drive a compressor 19. An air storage tank 22 is provided between the compressor 19 and the gasifier 11,
Gas generated in the gasifier 11 is processed in a gas purification system 12. The gas turbine composed of a compressor 2, a combustor 3, and a gas turbine 4 is a normal gas turbine, and is special in that it uses gasified fuel as fuel, and drives a load 5.
ガス化炉用の空気９は、圧縮機１６、燃焼器１７、ガス
タービン１８で構成されるガスタービンにより駆動され
る圧縮機１９て昇圧され、弁２０、弁２１を通りガス化
炉１１に導かれる。この弁２０，２１間に貯気槽２２が
設けられてあり、弁２０および２１の操作により貯気槽
２２内の空気量の制御を行なう。燃料１０はガス化用空
気９によりガス化炉１１内でガス化された後にガス精製
系１２において処理され燃料ガスとなる。ガス精製系１
２出口２は２系統設けられ、一つは弁１４を通り負荷５
駆動用のガスタービンへと導かれ、他の一つは弁１５を
通り圧縮機１９駆動用のガスタービンへと導かれる。定
格負荷運転時には、負荷駆動可能な燃料量が燃焼器３に
、圧縮機駆動可能な燃料量が燃焼器１７に供給可能とな
るように、ガス化炉１１入口の空気量は貯気槽２２内の
空気量に応じ弁２０，２１を操作する事により供給され
る。Air 9 for the gasification furnace is pressurized by a compressor 19 driven by a gas turbine composed of a compressor 16, a combustor 17, and a gas turbine 18, and is introduced into the gasification furnace 11 through valves 20 and 21. It will be destroyed. An air storage tank 22 is provided between the valves 20 and 21, and the amount of air in the air storage tank 22 is controlled by operating the valves 20 and 21. The fuel 10 is gasified in a gasification furnace 11 by gasification air 9, and then processed in a gas purification system 12 to become fuel gas. Gas purification system 1
Two outlets 2 are provided, one of which passes through the valve 14 and receives the load 5.
The other one passes through the valve 15 and is led to the gas turbine for driving the compressor 19. During rated load operation, the amount of air at the inlet of the gasifier 11 is controlled within the storage tank 22 so that the amount of fuel that can drive the load can be supplied to the combustor 3 and the amount of fuel that can drive the compressor can be supplied to the combustor 17. The air is supplied by operating the valves 20 and 21 according to the amount of air.
また部分負荷運転の要求が生じた場合には、弁１４，１
５の操作によりガス発生量を一定に保ち燃焼器３への供
給量を減少させると共に燃焼器１７への供給量を増加さ
せる。そしてガスタービン１８は定格時以上に出力を発
生する。この余剰出力を用い弁２０の操作によつて圧縮
機１９は余剰の空気を圧縮し、貯気槽２２に貯える事に
なる。また昼間運転、夜間停止を要求される発電プラン
トでは、夜間に弁１４を閉じてガス化燃料全量を空気を
貯気槽２２に貯えるために用い、昼間は弁１５を閉じガ
ス化は貯気槽２２内の空気を用いて行なうので、ガス化
炉を停止させない運用効率の良い運転が可能である。In addition, when a request for partial load operation occurs, the valves 14 and 1
By the operation 5, the amount of gas generated is kept constant, the amount of gas supplied to the combustor 3 is decreased, and the amount of gas supplied to the combustor 17 is increased. The gas turbine 18 then generates an output higher than the rated output. Using this surplus output, the compressor 19 compresses surplus air by operating the valve 20 and stores it in the air storage tank 22. In addition, in a power generation plant that is required to operate during the day and shut down at night, the valve 14 is closed at night and the entire amount of gasified fuel is used to store air in the air storage tank 22, and the valve 15 is closed during the day and gasification is carried out in the air storage tank 22. Since this is carried out using the air in the gasifier 22, efficient operation without stopping the gasifier is possible.
このことから本発明によれば、負荷変動の要求に対し追
従可能なガス化燃料制御がガス化炉の運転を定常に保つ
たままで行なうことができ、またガス化炉、ガスタービ
ン複合プラントの部分負荷運転範囲を拡大して負荷追従
性を良好とする効果がある。Therefore, according to the present invention, gasified fuel control that can follow load fluctuation requests can be performed while maintaining steady operation of the gasifier. This has the effect of expanding the load operation range and improving load followability.
第１図は従来のガス化複合プラント構成を示すフロー図
、第２図は本発明の一実施例であるガス化炉を有するガ
ス化複合プラント構成を示すフロー図てある。
１・・・空気、２・・・圧縮機、３・・・燃焼器、４・
・・ガスタービン、５・・・負荷、６・・・冷却器、７
・・・冷却水、８・・・ブースト圧縮機、９・・・高圧
空気、１０・・・燃料、１１・・・ガス化炉、１２・・
・ガス精製系、１３・・蒸気タービン、２２・・・貯気
槽。FIG. 1 is a flow diagram showing the configuration of a conventional gasification complex plant, and FIG. 2 is a flow diagram showing the structure of a gasification complex plant having a gasification furnace, which is an embodiment of the present invention. 1...Air, 2...Compressor, 3...Combustor, 4...
...Gas turbine, 5...Load, 6...Cooler, 7
...Cooling water, 8...Boost compressor, 9...High pressure air, 10...Fuel, 11...Gasifier, 12...
・Gas purification system, 13...Steam turbine, 22...Air storage tank.
Claims (1)
有し、この炉で発生した燃料ガスで負荷５を駆動する第
１のガスタービン４を備えたガス化複合プラントにおい
て、前記燃料ガスで駆動される第２のガスタービン、こ
の第２のガスタービンで駆動される空気圧縮機１９、こ
の空気圧縮機から出る空気を貯える貯気槽２２及び前記
空気圧縮機から出る空気を前記ガス化炉に連結する手段
を設け、更に前記燃料ガスの第１のガスタービン及び第
２のガスタービンへの供給量並びに前記空気圧縮機から
出る空気の前記貯気槽及び前記ガス化炉への供給量をタ
ービン負荷に応じて制御する弁装置を配置したことを特
徴とするガス化複合プラント。1. In a gasification complex plant that has a pressurized gasification furnace 11 that performs gasification using air as a heat source, and a first gas turbine 4 that drives a load 5 with the fuel gas generated in this furnace, the fuel gas a second gas turbine driven by the second gas turbine, an air compressor 19 driven by the second gas turbine, an air storage tank 22 for storing the air coming out of the air compressor, and the gasification of the air coming out of the air compressor. means for connecting to the furnace, and further supplying the fuel gas to the first gas turbine and the second gas turbine and supplying the air exiting the air compressor to the storage tank and the gasifier. A gasification complex plant characterized by having a valve device arranged to control the turbine load according to the turbine load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP130879A JPS6056248B2 (en) | 1979-01-12 | 1979-01-12 | gasification complex plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP130879A JPS6056248B2 (en) | 1979-01-12 | 1979-01-12 | gasification complex plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5593928A JPS5593928A (en) | 1980-07-16 |
| JPS6056248B2 true JPS6056248B2 (en) | 1985-12-09 |
Family
ID=11497857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP130879A Expired JPS6056248B2 (en) | 1979-01-12 | 1979-01-12 | gasification complex plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056248B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4593202A (en) * | 1981-05-06 | 1986-06-03 | Dipac Associates | Combination of supercritical wet combustion and compressed air energy storage |
| US5778675A (en) * | 1997-06-20 | 1998-07-14 | Electric Power Research Institute, Inc. | Method of power generation and load management with hybrid mode of operation of a combustion turbine derivative power plant |
-
1979
- 1979-01-12 JP JP130879A patent/JPS6056248B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5593928A (en) | 1980-07-16 |
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