JPH0415376B2 - - Google Patents
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- Publication number
- JPH0415376B2 JPH0415376B2 JP61196232A JP19623286A JPH0415376B2 JP H0415376 B2 JPH0415376 B2 JP H0415376B2 JP 61196232 A JP61196232 A JP 61196232A JP 19623286 A JP19623286 A JP 19623286A JP H0415376 B2 JPH0415376 B2 JP H0415376B2
- Authority
- JP
- Japan
- Prior art keywords
- amount
- exhaust gas
- steam
- fuel
- boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ガスタービンの排ガスを廃熱ボイラ
で熱回収した後、その排ガスを燃料焚きボイラの
燃焼用空気として利用するシステムに於いて、前
記両ボイラから発生する蒸気量を制御するように
した発生蒸気量の制御方法に関する。Detailed Description of the Invention (Industrial Application Field) The present invention provides a system for recovering heat from exhaust gas from a gas turbine in a waste heat boiler and then using the exhaust gas as combustion air for a fuel-fired boiler. The present invention relates to a method for controlling the amount of steam generated by controlling the amount of steam generated from both of the boilers.
（従来の技術）
一般に、ガスタービンから排出される排ガスは
温度が約400〜600℃と高く、又、排ガス中の残存
酸素濃度も13〜17容量％と比較的多いことから、
この排ガスをボイラ等の燃焼用空気として有効利
用することが行われている。(Prior art) Generally, the temperature of the exhaust gas discharged from a gas turbine is high at approximately 400 to 600°C, and the residual oxygen concentration in the exhaust gas is relatively high at 13 to 17% by volume.
This exhaust gas is effectively used as combustion air for boilers and the like.
即ち、ガスタービンの排ガスを排ガスダクトに
よりボイラ等に導いてこれをボイラ等の燃焼用空
気として利用すると共に、余剰の排ガスを排ガス
ダクトから分岐させた分岐ダクト及びこれに接続
された排気スタツクにより大気中へ放出させてい
る。 In other words, the exhaust gas of the gas turbine is guided to a boiler etc. through an exhaust gas duct and used as combustion air for the boiler etc., and excess exhaust gas is released into the atmosphere through a branch duct branched from the exhaust gas duct and an exhaust stack connected to this. It is released inside.
然し乍ら、この場合、ボイラ等の停止時若しく
は低負荷運転時にはボイラ等の必要空気量が少な
くなる為、排ガスを全て燃焼用空気として利用す
ることができず、余剰の排ガスは高温のまま排気
スタツクから大気中へ放出され、排ガスの保有す
る熱量の多くが無駄になると云う問題がある。 However, in this case, when the boiler, etc. is stopped or operated under low load, the amount of air required by the boiler, etc. is reduced, so all the exhaust gas cannot be used as combustion air, and the excess exhaust gas is discharged from the exhaust stack at a high temperature. There is a problem in that much of the heat contained in the exhaust gas is wasted as it is released into the atmosphere.
一方、この問題を解決したものとしては、第２
図に示す如く、ガスタービン１８の排ガスG′を
廃熱ボイラ２１で熱回収した上で燃焼用空気とし
て燃料焚きボイラ２０へ供給し、両ボイラ２０，
２１で発生する蒸気をプロセス３０に合流供給さ
せるようにした蒸気供給システムが知られてい
る。 On the other hand, the second solution to this problem is
As shown in the figure, the exhaust gas G' of the gas turbine 18 is heat-recovered in the waste heat boiler 21 and then supplied as combustion air to the fuel-fired boiler 20.
A steam supply system is known in which the steam generated in step 21 is jointly supplied to process 30.
即ち、前記システムは、第２図に示す如く、ガ
スタービン１８と、これに排気ダクト１９を介し
て接続された燃料焚きボイラ２０と、ガスタービ
ン１８と燃料焚きボイラ２０との間の排気ダクト
１９に介設された廃熱ボイラ２１と、前記両ボイ
ラ２０，２１間の排気ダクト１９に分岐ダクト２
２を介して接続されたバイパススタツク２３等か
ら構成されて居り、ガスタービン１８の排ガス
G′は廃熱ボイラ２１で熱回収された後、燃料焚
きボイラ２０へ供給されて燃焼用空気として利用
される。又、燃料焚きボイラ２０の停止時若しく
は低負荷運転時には、排ガスＧは廃熱ボイラ２１
で熱回収された後、分岐ダクト２２及びバイパス
スタツク２３を経て大気中へ放出される。尚、図
に於いて、２４は排気スタツク、２５はダンパ、
２６は燃料用制御弁、２７は蒸気用制御弁、２８
は蒸気圧力検出器、２９は蒸気圧力制御装置であ
る。 That is, as shown in FIG. 2, the system includes a gas turbine 18, a fuel-fired boiler 20 connected to the gas turbine 18 via an exhaust duct 19, and an exhaust duct 19 between the gas turbine 18 and the fuel-fired boiler 20. A branch duct 2 is connected to the exhaust duct 19 between the two boilers 20 and 21.
The exhaust gas of the gas turbine 18 is
After G' is heat recovered by the waste heat boiler 21, it is supplied to the fuel-fired boiler 20 and used as combustion air. Furthermore, when the fuel-fired boiler 20 is stopped or operated at low load, the exhaust gas G is transferred to the waste heat boiler 21.
After the heat is recovered, it is released into the atmosphere through the branch duct 22 and the bypass stack 23. In the figure, 24 is an exhaust stack, 25 is a damper,
26 is a fuel control valve, 27 is a steam control valve, 28
2 is a steam pressure detector, and 29 is a steam pressure control device.
而して、かかるシステムにあつては、両ボイラ
２０，２１からプロセス３０に供給する蒸気量を
プロセス３０の負荷つまり蒸気使用量に応じて制
御している。しかし、プロセス３０で使用する蒸
気量が廃熱ボイラ２１で発生する蒸気量より多い
ときは問題はないが、廃熱ボイラ２１で発生する
蒸気量より少ないときには問題がある。すなわ
ち、プロセス３０で使用する蒸気量が廃熱ボイラ
２１で発生する蒸気量よりも少ないときにはガス
タービン１８の負荷を強制的に下げて廃熱ボイラ
２１から発生する蒸気量を下げたり、或は発生し
た蒸気を大気中へ放出するようにしているため、
発生蒸気量を制御する際、ガスタービン１８を定
格以下で運転した場合にはガスタービン１８の運
転が部分負荷になつて該ガスタービン１８は機械
的効率の極めて低いところで運転されることにな
り、又、発生した蒸気を大気中へ放出した場合に
はボイラ給水が無駄になり、プロセスの必要蒸気
量に応じては発生蒸気量の制御を良好な状態で行
えないと云う問題があつた。 In this system, the amount of steam supplied from both boilers 20 and 21 to the process 30 is controlled according to the load of the process 30, that is, the amount of steam used. However, there is no problem when the amount of steam used in the process 30 is greater than the amount of steam generated in the waste heat boiler 21, but there is a problem when it is less than the amount of steam generated in the waste heat boiler 21. That is, when the amount of steam used in the process 30 is less than the amount of steam generated by the waste heat boiler 21, the load on the gas turbine 18 is forcibly lowered to reduce the amount of steam generated from the waste heat boiler 21, or the amount of steam generated from the waste heat boiler 21 is reduced. Since the steam is released into the atmosphere,
When controlling the amount of steam generated, if the gas turbine 18 is operated below the rated value, the gas turbine 18 will be operated under partial load and the gas turbine 18 will be operated at an extremely low mechanical efficiency. Further, when the generated steam is released into the atmosphere, boiler feed water is wasted, and there is a problem that the amount of generated steam cannot be controlled in a good manner depending on the amount of steam required for the process.
（発明が解決しようとする問題点）
本発明は、上記の問題点を解消する為に創案さ
れたものであり、その目的はガスタービンの運転
効率を低下させたり、或は発生した蒸気を放出す
ることなく、発生蒸気量の制御を常時良好な状態
で行える発生蒸気量の制御方法を提供するにあ
る。(Problems to be Solved by the Invention) The present invention was devised to solve the above problems, and its purpose is to reduce the operating efficiency of the gas turbine or to release the generated steam. It is an object of the present invention to provide a method for controlling the amount of generated steam, which allows the amount of generated steam to be controlled in a good condition at all times without causing any problems.
（問題点を解決する為の手段）
本発明の発生蒸気量の制御方法は、ガスタービ
ンの排ガスを、廃熱ボイラで熱回収した上で燃焼
用空気として燃料焚きボイラへ供給し、両ボイラ
で発生する蒸気をプロセスに合流供給させるよう
にした蒸気供給システムにおいて、ガスタービン
と廃熱ボイラとの間の排ガスダクト部分に排ガス
の排出用分岐ダクトを接続して、燃料焚きボイラ
へ供給される燃料量と廃熱ボイラへ流入する排ガ
ス量と排ガスの排出用分岐ダクトから大気中へ排
出される排ガス量とを、両ボイラで発生する蒸気
の合計量がプロセスの負荷に応じたものとなるよ
うに、制御させるものである。(Means for Solving the Problems) The method of controlling the amount of steam generated according to the present invention recovers heat from the exhaust gas of a gas turbine in a waste heat boiler and then supplies it as combustion air to a fuel-fired boiler. In a steam supply system in which the generated steam is supplied to the process, a branch duct for exhaust gas discharge is connected to the exhaust gas duct section between the gas turbine and the waste heat boiler, and the fuel is supplied to the fuel-fired boiler. The amount of exhaust gas flowing into the waste heat boiler and the amount of exhaust gas discharged into the atmosphere from the exhaust gas exhaust branch duct are adjusted so that the total amount of steam generated by both boilers is in accordance with the process load. , to be controlled.
（作用）
ガスタービンから排出された排ガスは、廃熱ボ
イラに供給されてここで熱回収された後、燃料焚
きボイラへ供給されて燃焼用空気として利用され
る。(Operation) Exhaust gas discharged from the gas turbine is supplied to a waste heat boiler, where heat is recovered, and then supplied to a fuel-fired boiler and used as combustion air.
そして、両ボイラが発生した蒸気の合計量がプ
ロセスに供給されるが、この蒸気の合計量は、燃
料焚きボイラへ供給される燃料量と廃熱ボイラへ
流入する排ガス量と排ガスの排出用分岐ダクトか
ら大気中へ排出される排ガス量とを制御すること
によつて、プロセスの負荷に応じたものとなるよ
うに調整される。 The total amount of steam generated by both boilers is then supplied to the process, and this total amount of steam is comprised of the amount of fuel supplied to the fuel-fired boiler, the amount of exhaust gas flowing into the waste heat boiler, and the branch for exhaust gas discharge. By controlling the amount of exhaust gas discharged from the duct into the atmosphere, it can be adjusted to match the load of the process.
すなわち、プロセスでの蒸気使用量が多いとき
には、大気中に排出される排ガス量を少なくして
或いは零とすると共に、燃料焚きボイラへ供給さ
れる燃料量及び廃熱ボイラへ流入する排ガス量を
多くして、両ボイラでの蒸気発生量を多くする。
逆に、プロセスでの蒸気使用量が少ないときに
は、大気中に排出される排ガス量を多くすると共
に、燃料焚きボイラへ供給される燃料量及び廃熱
ボイラへ流入する排ガス量を少なくして或いは零
として、両ボイラでの蒸気発生量を少なくする。
このようにして、ガスタービンからの排ガス量と
は関係なく、両ボイラで発生する蒸気の合計量を
プロセスでの使用蒸気量に応じたものに制御する
のである。 In other words, when a large amount of steam is used in a process, the amount of exhaust gas emitted into the atmosphere is reduced or eliminated, and the amount of fuel supplied to the fuel-fired boiler and the amount of exhaust gas flowing into the waste heat boiler are increased. This will increase the amount of steam generated in both boilers.
Conversely, when the amount of steam used in the process is small, the amount of exhaust gas discharged into the atmosphere is increased, and the amount of fuel supplied to the fuel-fired boiler and the amount of exhaust gas flowing into the waste heat boiler is reduced or eliminated. As a result, the amount of steam generated in both boilers will be reduced.
In this way, the total amount of steam generated by both boilers is controlled in accordance with the amount of steam used in the process, regardless of the amount of exhaust gas from the gas turbine.
したがつて、プロセスでの蒸気使用量が多いと
きには勿論、少ないときにも、ガスタービンの負
荷を強制的に下げたり余剰蒸気が発生するといつ
た不都合や無駄が生じることがない。 Therefore, not only when the amount of steam used in the process is large, but also when it is small, there is no inconvenience or waste such as forcibly lowering the load on the gas turbine or generating surplus steam.
（実施例）
以下、本発明の実施例を図面に基づいて詳細に
説明する。(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.
第１図は本発明の制御方法を実施した発生蒸気
量制御システムの系統図である。 FIG. 1 is a system diagram of a generated steam amount control system implementing the control method of the present invention.
前記制御システムは、ガスタービン１と、これ
に排ガスダクト２を介して接続された燃料焚きボ
イラ３と、燃料焚きボイラ３に燃焼ガスダクト４
を介して接続された排気スタツク５と、燃料焚き
ボイラ３に接続された燃料供給管６と、排ガスダ
クト２に介設された廃熱ボイラ７と、両ボイラ
３，７で発生した蒸気Ｓをプロセス８へ導びく導
管９と、ガスタービン１と廃熱ボイラ７との間の
排ガスダクト２に分岐ダクト１０を介して接続さ
れたバイパススタツク１１等から構成されてい
る。又、燃料供給管６には燃料用制御弁１２が、
廃熱ボイラ７と分岐ダクト１０との間の排ガスダ
クト２及び分岐ダクト１０には入口ダンパ１３及
びバイパスダンパ１４が夫々配設されて居り、前
記燃料用制御弁１２及び各ダンパ１３，１４は、
導管９に設けた蒸気圧力検出器１５による検出値
に基づいて蒸気圧力制御装置１６により適宜開閉
制御されるように為されている。従つて、前記燃
料用制御弁１２及び各ダンパ１３，１４の開閉制
御により、燃料焚きボイラ３へ供給される燃料量
と、廃熱ボイラ７へ流入する排ガス量と、分岐ダ
クト１０及びバイパススタツク１１を経て大気中
へ放出される排ガス量とが適宜調節されることに
なり、前記両ボイラ３，７から発生する合計の蒸
気量が制御されることになる。 The control system includes a gas turbine 1, a fuel-fired boiler 3 connected to the gas turbine 1 via an exhaust gas duct 2, and a combustion gas duct 4 connected to the fuel-fired boiler 3.
The exhaust stack 5 connected to the exhaust stack 5, the fuel supply pipe 6 connected to the fuel-fired boiler 3, the waste heat boiler 7 installed in the exhaust gas duct 2, and the steam S generated in both boilers 3 and 7 are It consists of a conduit 9 leading to the process 8, a bypass stack 11 connected to the exhaust gas duct 2 between the gas turbine 1 and the waste heat boiler 7 via a branch duct 10, and the like. Further, the fuel supply pipe 6 includes a fuel control valve 12.
An inlet damper 13 and a bypass damper 14 are provided in the exhaust gas duct 2 and the branch duct 10 between the waste heat boiler 7 and the branch duct 10, respectively, and the fuel control valve 12 and each damper 13, 14
Opening/closing is controlled as appropriate by a steam pressure control device 16 based on a detected value by a steam pressure detector 15 provided in the conduit 9. Therefore, by controlling the opening and closing of the fuel control valve 12 and the dampers 13 and 14, the amount of fuel supplied to the fuel-fired boiler 3, the amount of exhaust gas flowing into the waste heat boiler 7, and the amount of fuel flowing into the branch duct 10 and the bypass stack are controlled. The amount of exhaust gas discharged into the atmosphere through the boiler 11 is adjusted accordingly, and the total amount of steam generated from both the boilers 3 and 7 is controlled.
尚、バイパススタツク１１内には水噴射管１７
が接続されて居り、排ガスＧは水噴射管１７から
の水噴射により減温されてバイパススタツク１１
から排出される。 Note that a water injection pipe 17 is provided in the bypass stack 11.
is connected to the bypass stack 11, and the temperature of the exhaust gas G is reduced by water injection from the water injection pipe 17.
is discharged from.
而して、ガスタービン１から排出された排ガス
Ｇは、通常廃熱ボイラ７へ全量供給されてここで
熱回収された後、燃料焚きボイラ３へ供給され、
該燃料焚きボイラ３に於いて燃焼供給管６より供
給される燃料Ｆの燃焼用空気として利用される。
このときの発生蒸気量は、燃料焚きボイラ３へ供
給される燃料量を燃料用制御弁１２で調節するこ
とにより制御される。 The exhaust gas G discharged from the gas turbine 1 is normally supplied in its entirety to the waste heat boiler 7, where the heat is recovered, and then supplied to the fuel-fired boiler 3.
It is used as combustion air for the fuel F supplied from the combustion supply pipe 6 in the fuel-fired boiler 3.
The amount of steam generated at this time is controlled by adjusting the amount of fuel supplied to the fuel-fired boiler 3 with the fuel control valve 12.
一方、プロセス８で必要な蒸気量が減少し、燃
料焚きボイラ７が停止したとき若しくは低負荷運
転になつたときには燃料量の調節による制御から
各ダンパ１３，１４の開度調節による制御に自動
的に切り替えられ、発生する蒸気量が制御され
る。即ち、入口ダンパ１３を制御して廃熱ボイラ
７へ流入する排ガス量を調節すると共に、バイパ
スダンパ１４を制御して余剰の排ガスＧを分岐ダ
ンパ１０及びバイパススタツク１１を介して大気
中へ放出することにより、発生する蒸気量が制御
される。このとき、バイパススタツク１１から排
出される排ガスＧは、水噴射管１７からの水の噴
射により減温されて排出される為、高温の排ガス
放散による熱公害が防止される。 On the other hand, when the amount of steam required in the process 8 decreases and the fuel-fired boiler 7 stops or enters low-load operation, the control based on the adjustment of the fuel amount is automatically changed from the control based on the adjustment of the opening of each damper 13, 14. The amount of steam generated is controlled. That is, the inlet damper 13 is controlled to adjust the amount of exhaust gas flowing into the waste heat boiler 7, and the bypass damper 14 is controlled to release excess exhaust gas G into the atmosphere via the branch damper 10 and the bypass stack 11. By doing so, the amount of steam generated is controlled. At this time, the temperature of the exhaust gas G discharged from the bypass stack 11 is reduced by water injection from the water injection pipe 17 before being discharged, so that thermal pollution due to the dissipation of the high temperature exhaust gas is prevented.
尚、バイパスダンパ１４が全開状態となつた状
態で廃熱ボイラ７から発生する蒸気量を減少する
必要がある場合には入口ダンパ１３を閉側に制御
し、両ボイラ３，７から発生する合計の蒸気量の
制御を行う。 In addition, if it is necessary to reduce the amount of steam generated from the waste heat boiler 7 when the bypass damper 14 is fully open, the inlet damper 13 is controlled to the closed side, and the total amount of steam generated from both boilers 3 and 7 is reduced. control the amount of steam.
そして、プロセス８で使用される蒸気Ｓが増加
した場合には前記と逆の操作で蒸気量の制御を行
う。 When the amount of steam S used in process 8 increases, the amount of steam is controlled by performing an operation opposite to the above.
（発明の効果）
上述の通り、本発明の発生蒸気量の制御方法
は、燃料焚きボイラへ供給される燃料量、廃熱ボ
イラへ流入する排ガス量及び大気中へ放出される
排ガス量を適宜調節することにより、燃料焚きボ
イラ及び廃熱ボイラから発生する合計の蒸気量を
制御するようにした為、発生蒸気量を減少させる
際、ガスタービンの負荷を強制的に下げたり、或
は発生した蒸気を大気中へ放出する必要もなく、
必要な蒸気量に応じて発生蒸気量の制御を常時良
好な状態で行うことができる。(Effects of the Invention) As described above, the method for controlling the amount of generated steam of the present invention appropriately adjusts the amount of fuel supplied to the fuel-fired boiler, the amount of exhaust gas flowing into the waste heat boiler, and the amount of exhaust gas released into the atmosphere. By doing so, the total amount of steam generated from the fuel-fired boiler and the waste heat boiler is controlled, so when reducing the amount of steam generated, the load on the gas turbine is forcibly lowered, or the amount of steam generated is There is no need to release it into the atmosphere,
The amount of generated steam can be controlled in a good manner at all times according to the required amount of steam.
又、本発明の制御方法を使用すれば、ガスター
ビンを必要な発生電力の見合う効率の良い状態で
常時運転することができ、極めて好都合である。 Further, if the control method of the present invention is used, the gas turbine can be constantly operated in an efficient state commensurate with the required generated power, which is extremely convenient.
更に、本発明の制御方法を使用すれば、発生し
た蒸気を大気中へ放出する必要もなく、ボイラ給
水が無駄になることもない。 Furthermore, by using the control method of the present invention, there is no need to release the generated steam into the atmosphere, and no boiler feed water is wasted.
第１図は本発明の制御方法を実施した発生蒸気
量制御システムの系統図、第２図は従来の発生蒸
気量制御システムの系統図である。
１はガスタービン、３は燃料焚きボイラ、７は
廃熱ボイラ、１０は分岐ダクト、１１はバイパス
スタツク、Ｇは排ガス、Ｆは燃料。
FIG. 1 is a system diagram of a generated steam amount control system implementing the control method of the present invention, and FIG. 2 is a system diagram of a conventional generated steam amount control system. 1 is a gas turbine, 3 is a fuel-fired boiler, 7 is a waste heat boiler, 10 is a branch duct, 11 is a bypass stack, G is an exhaust gas, and F is a fuel.
Claims (1)
で熱回収した上で燃焼用空気として燃料焚きボイ
ラ３へ供給し、両ボイラ３，７で発生する蒸気を
プロセス８に合流供給させるようにした蒸気供給
システムにおいて、ガスタービン１と廃熱ボイラ
７との間の排ガスダクト２部分に排ガスの排出用
分岐ダクト１０を接続して、燃料焚きボイラ３へ
供給される燃料Ｆ量と廃熱ボイラ７へ流入する排
ガスＧ量と排ガスの排出用分岐ダクト１０から大
気中へ排出される排ガスＧ量とを、両ボイラ３，
７で発生する蒸気の合計量がプロセス８の負荷に
応じたものとなるように、制御させることを特徴
とする発生蒸気量の制御方法。1 The exhaust gas G of the gas turbine 1 is transferred to the waste heat boiler 7
In a steam supply system in which heat is recovered in a combustion air and then supplied to a fuel-fired boiler 3 as combustion air, and the steam generated in both boilers 3 and 7 is combined and supplied to a process 8, a gas turbine 1 and a waste heat boiler 7 A branch duct 10 for exhaust gas discharge is connected to the 2 parts of the exhaust gas duct between the fuel-fired boiler 3, the amount of fuel F supplied to the fuel-fired boiler 3, the amount of exhaust gas G flowing into the waste heat boiler 7, and the branch duct 10 for exhaust gas discharge. 10 and the amount of exhaust gas G discharged into the atmosphere from both boilers 3,
7. A method for controlling the amount of steam generated, comprising controlling the total amount of steam generated in step 7 so that it corresponds to the load of process 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19623286A JPS6350628A (en) | 1986-08-21 | 1986-08-21 | Controlling method for generated steam quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19623286A JPS6350628A (en) | 1986-08-21 | 1986-08-21 | Controlling method for generated steam quantity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6350628A JPS6350628A (en) | 1988-03-03 |
| JPH0415376B2 true JPH0415376B2 (en) | 1992-03-17 |
Family
ID=16354396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19623286A Granted JPS6350628A (en) | 1986-08-21 | 1986-08-21 | Controlling method for generated steam quantity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6350628A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4931614B2 (en) * | 2007-01-19 | 2012-05-16 | 中国電力株式会社 | Cogeneration system using cold heat of liquefied gas and its operation method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018815B2 (en) * | 1975-03-31 | 1985-05-13 | 株式会社日立製作所 | Gas turbine fuel control method and device for combined cycle plant |
| JPS5445410A (en) * | 1977-09-16 | 1979-04-10 | Hitachi Ltd | Exhaust internal pressure abnormal rise protecting apparatus in gas turbine |
| JPS58221312A (en) * | 1982-06-18 | 1983-12-23 | Mitsui Eng & Shipbuild Co Ltd | Utilization of waste gas from gas turbine |
-
1986
- 1986-08-21 JP JP19623286A patent/JPS6350628A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6350628A (en) | 1988-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |