JPH02241908A - Combustion control protecting device - Google Patents
Combustion control protecting deviceInfo
- Publication number
- JPH02241908A JPH02241908A JP6156089A JP6156089A JPH02241908A JP H02241908 A JPH02241908 A JP H02241908A JP 6156089 A JP6156089 A JP 6156089A JP 6156089 A JP6156089 A JP 6156089A JP H02241908 A JPH02241908 A JP H02241908A
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- combustion
- combustion gas
- speed control
- speed
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 41
- 239000000567 combustion gas Substances 0.000 claims description 84
- 239000007789 gas Substances 0.000 claims description 38
- 238000010248 power generation Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- 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
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、複数の発電ユニットで構成されるコンバイン
ドサイクル発電プラントにおける燃焼制御保護装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a combustion control and protection device in a combined cycle power plant comprised of a plurality of power generation units.
（従来の技術）
ガスタービンと蒸気タービンとを組合わせたコンバイン
ドサイクル発電プラントを第３図及び第４図を用いて説
明する。(Prior Art) A combined cycle power plant that combines a gas turbine and a steam turbine will be described with reference to FIGS. 3 and 4.
第３図及び第４図において、コンバインドサイクル発電
プラントは、機外からの空気を空気管１を通して空気圧
縮機２へ供給して、ここで高圧空気に圧縮し、しかる後
、この高圧空気を燃焼器３へ供給すると共に、燃料タン
クへ接続した燃焼供給系４から供給された燃料と混合し
、この燃焼器３で燃焼させる。すると、この燃焼器３の
燃焼ガスの膨張力でガスタービン５を駆動する。In Figures 3 and 4, the combined cycle power plant supplies air from outside the machine through an air pipe 1 to an air compressor 2, compresses it into high-pressure air, and then combusts this high-pressure air. The combustor 3 mixes the fuel with fuel supplied from the combustion supply system 4 connected to the fuel tank, and combusts the mixture in the combustor 3. Then, the gas turbine 5 is driven by the expansion force of the combustion gas from the combustor 3.
一方、仕事を終えた燃焼ガスは、排熱回収ボイ５−（Ｈ
ＲＳＧともいう）７へ供給され、その排熱で水を加熱し
て蒸気を発生させる。しかして、この排熱回収ボイラー
７の蒸気は蒸気タービン８へ移送され、蒸気タービン８
を駆動する。ここで、仕事を終えた蒸気は、復水器９へ
移送されて、再び水に復水し、しかる後この復水は給水
ポンプ１０によって給水管１０ａを通して排熱回収ボイ
ラー７へ供給されて、再び蒸気に生成された後、上記蒸
気タービン８へ循環移送されるようになっている。On the other hand, the combustion gas that has finished its work is
(also referred to as RSG) 7, and its waste heat heats water to generate steam. The steam in the exhaust heat recovery boiler 7 is then transferred to the steam turbine 8.
to drive. Here, the steam that has completed its work is transferred to the condenser 9 and condensed into water again, and then this condensed water is supplied to the waste heat recovery boiler 7 through the water supply pipe 10a by the water supply pump 10, After being generated into steam again, it is circulated and transferred to the steam turbine 8.
なお、発電機６はガスタービン５や蒸気タービン８によ
る回転力を電気エネルギーに変換して電力系統へ供給さ
れるようになっている。Note that the generator 6 converts the rotational force generated by the gas turbine 5 and the steam turbine 8 into electrical energy, which is then supplied to the power system.
このように、ガスタービン５と蒸気タービン８とを−ユ
ニットとし、これを複数のユニットに組合せてシステム
を構成し、このシステム全体を一組の発電プラントとし
ている。In this way, the gas turbine 5 and the steam turbine 8 are combined into a plurality of units to form a system, and the entire system is a power generation plant.
又、第３図に示されるように構成されたコンバインドサ
イクル発電プラントでは、第４図に示されるように、燃
焼器３への燃料の供給制御は、速度制御弁（ＳＲＶとも
いう）１１と燃焼ガス制御弁（ＧＣＶともいう）１２で
行うと共に、燃焼供給系４に速度制御弁１１と燃焼ガス
制御弁１２を付設し、この速度制御弁１１と燃焼ガス制
御弁１２との間の燃焼供給系４に燃焼ガス圧力を検出す
る、例えばガス圧力検出センサー１３を付設する。そし
て、速度制御弁１１とガス圧力検出センサー１３からの
信号を燃焼保護制御装置１４の速度制御回路１５に取り
込み、燃焼ガス制御弁１２からの信号を燃焼保護制御装
置１４の燃焼ガス制御回路１６へ入力するようにしてい
る。In the combined cycle power plant configured as shown in FIG. 3, the fuel supply to the combustor 3 is controlled by the speed control valve (also referred to as SRV) 11 and the combustion The combustion supply system is operated by a gas control valve (also referred to as GCV) 12, and a speed control valve 11 and a combustion gas control valve 12 are attached to the combustion supply system 4, and a combustion supply system between the speed control valve 11 and the combustion gas control valve 12 is provided. For example, a gas pressure detection sensor 13 is attached to 4 to detect combustion gas pressure. Then, the signals from the speed control valve 11 and the gas pressure detection sensor 13 are taken into the speed control circuit 15 of the combustion protection control device 14, and the signals from the combustion gas control valve 12 are sent to the combustion gas control circuit 16 of the combustion protection control device 14. I am trying to input it.
従って、上述したコンバインドサイクル発電プラントお
ける燃料は、ガスタービン５のガスタービン回転数に対
応する条件で速度制御弁１１によって燃焼ガス圧力Ｐａ
に制御され、さらに、燃焼ガス制御弁１２を通して燃焼
器３へ移送された燃料は、ここで燃焼して、上述したよ
うにガスタービン５を回転する。又、燃焼ガス圧力Ｐａ
を制御する速度制御弁１１とガスタービン回転数、負荷
及び燃焼排気ガス温度を制御する燃焼ガス制御弁１２と
は、燃焼保護制御装置１４で制御している。Therefore, the fuel in the above-mentioned combined cycle power plant is controlled by the speed control valve 11 under conditions corresponding to the gas turbine rotational speed of the gas turbine 5 at the combustion gas pressure Pa.
The fuel, which is controlled by the combustion gas control valve 12 and further transferred to the combustor 3 through the combustion gas control valve 12, is combusted there and rotates the gas turbine 5 as described above. In addition, the combustion gas pressure Pa
A combustion protection control device 14 controls a speed control valve 11 that controls the speed control valve 11 and a combustion gas control valve 12 that controls the gas turbine rotation speed, load, and combustion exhaust gas temperature.
又、速度制御弁１１と燃焼ガス制御弁１２とは、−個の
システムとして、燃焼ガスの流量制御を行っている。し
かし、この速度制御弁１１と燃焼ガス制御弁１２とを個
々に考察すると、上記速度制御回路１５から速度制御弁
１１への制御信号１５ａは、ガスタービン回転数から設
定される燃焼ガス圧力設定値Ｐａと実圧との偏差信号で
あり、燃焼ガス制御回路１６からの燃焼ガス制御弁１２
への制御信号１６ａは、ガスタービン回転数、負荷及び
燃焼排気ガス温度のそれぞれの各設定値と実測値との偏
差演算信号である。Further, the speed control valve 11 and the combustion gas control valve 12 control the flow rate of combustion gas as a - system. However, when considering the speed control valve 11 and the combustion gas control valve 12 individually, the control signal 15a from the speed control circuit 15 to the speed control valve 11 is the combustion gas pressure setting value set from the gas turbine rotation speed. It is a deviation signal between Pa and the actual pressure, and is a signal from the combustion gas control valve 12 from the combustion gas control circuit 16.
The control signal 16a is a deviation calculation signal between each set value and the actual value of the gas turbine rotation speed, load, and combustion exhaust gas temperature.
（発明が解決しようとする課題）
しかしながら、上述したコンバインドサイクル発電プラ
ントおける燃料は、速度制御弁１１と燃焼ガス制御弁１
２とを一個のシステムとして、燃料ガスの流量制御をそ
れぞれ異なる制御手段で行っている関係上、保護（保安
）機能もそれぞれの目的に応じたプロセス（工程）や設
定値によって行われている。したがって、燃焼排気ガス
温度が何等からの原因で急上昇して、燃焼ガス制御弁１
２が故障により閉動作しない場合、速度制御弁１１は燃
焼ガス制御弁１２の故障に関係なく、そのまま圧力制御
を継続する。また、逆に燃焼ガス圧が急上昇して、速度
制御弁１１が故障により閉動作しない場合、この速度制
御弁１１は、燃焼排気ガス温度、ガスタービン回転数、
負荷が変化するまでの間は、壱のまま燃焼ガスを供給す
る結果となる。これに起因して、燃焼器３が損傷するば
かりでなく、燃焼供給系４等の配管の劣化に伴うガス漏
れからガス爆発も予測され、発電プラント全体が非常に
危険な状態になることも予測されるため、これら発電プ
ラント及び燃焼器３等の安全性が望まれていた。(Problem to be Solved by the Invention) However, the fuel in the above-mentioned combined cycle power plant is limited to the speed control valve 11 and the combustion gas control valve 1.
2 and 2 are integrated into one system, and the fuel gas flow rate is controlled by different control means, so the protection (security) function is also performed by processes and set values depending on the purpose of each. Therefore, the combustion exhaust gas temperature suddenly increases due to some reason, and the combustion gas control valve 1
2 does not close due to a failure, the speed control valve 11 continues pressure control regardless of the failure of the combustion gas control valve 12. On the other hand, if the combustion gas pressure suddenly increases and the speed control valve 11 fails to close due to a failure, the speed control valve 11 will control the combustion exhaust gas temperature, gas turbine rotation speed,
Until the load changes, combustion gas is supplied as is. Due to this, it is predicted that not only the combustor 3 will be damaged, but also a gas explosion will occur due to gas leakage due to deterioration of the piping of the combustion supply system 4, etc., and the entire power plant will be in an extremely dangerous state. Therefore, the safety of these power plants, the combustor 3, etc. has been desired.
本発明は、上述した事情に鑑みてなされたものであって
、速度制御弁と燃焼ガス制御弁とを燃焼保護制御装置を
介して相互に連動するように制御すると共に、燃料ガス
の流量制御を相互に制御し、燃焼器等の損傷を防止して
安全性の向上を図るようにした燃焼制御保護装置を提供
することを目的とする。The present invention has been made in view of the above-mentioned circumstances, and includes controlling a speed control valve and a combustion gas control valve so as to interlock with each other via a combustion protection control device, and controlling the flow rate of fuel gas. It is an object of the present invention to provide a combustion control protection device that controls each other and prevents damage to a combustor, etc., and improves safety.
（課題を解決するための手段とその作用）本発明は、複
数の発電ユニットで構成されるコンバインドサイクル発
電プラントにおける燃焼器への燃焼供給系に速度制御弁
を制御する速度制御回路と燃料ガス制御弁を制御する燃
焼ガス制御回路を設けた燃焼制御保護装置において、上
記速度制御弁と速度制御回路との間に燃焼排ガス温度設
定値を備えた速度制御弁側保安制御装置を設け、燃焼ガ
ス制御弁と燃焼ガス制御回路との間に燃焼ガス圧力設定
値を備えた燃焼ガス制御弁側保安制御装置を設け、何ら
かの原因により、燃焼排ガス温度設定値を越えたり、燃
焼ガス圧力設定値を越えたりすると、上記速度制御弁側
保安制御装置や上記燃焼ガス制御弁側保安制御装置を作
動して燃焼器等の安全性の向上を図るようにしたもので
ある。(Means for Solving the Problems and Their Effects) The present invention provides a speed control circuit for controlling a speed control valve in a combustion supply system to a combustor in a combined cycle power generation plant consisting of a plurality of power generation units, and a fuel gas control circuit for controlling a speed control valve in a combustion supply system to a combustor. In a combustion control protection device provided with a combustion gas control circuit for controlling a valve, a speed control valve side safety control device having a combustion exhaust gas temperature set value is provided between the speed control valve and the speed control circuit, and the combustion gas control device is provided. A combustion gas control valve-side safety control device equipped with a combustion gas pressure set value is provided between the valve and the combustion gas control circuit to prevent the combustion gas temperature from exceeding the set value or the combustion gas pressure set value from being exceeded for some reason. Then, the speed control valve side safety control device and the combustion gas control valve side safety control device are operated to improve the safety of the combustor and the like.
（実施例） 以下、本発明を図示の一実施例について説明する。(Example) Hereinafter, the present invention will be described with reference to an illustrated embodiment.
なお、本発明は、上述した具体例と同一構成部材には、
同じ符号を付して説明する。Note that the present invention includes the same constituent members as those in the above-mentioned specific example.
The same reference numerals will be used to explain.
第１図乃至第３図において、符号２は、機外から空気管
１を通して接続した空気圧縮機であって、この空気圧縮
機２はここで高圧空気に圧縮し、この高圧空気を燃焼器
３へ供給すると共に、燃料タンクへ接続した燃料供給管
４から供給された燃料と混合し、この燃焼器３で燃焼さ
せると共にこの燃焼器３の燃焼ガスの膨張力でガスター
ビン５を駆動する。In FIGS. 1 to 3, reference numeral 2 denotes an air compressor connected from outside the machine through an air pipe 1. This air compressor 2 compresses the high-pressure air to the combustor 3. The gas is mixed with fuel supplied from a fuel supply pipe 4 connected to a fuel tank, combusted in this combustor 3, and the gas turbine 5 is driven by the expansion force of the combustion gas of this combustor 3.
一方、仕事を終えた燃焼ガスは、排熱回収ボイラー７へ
供給され、ここで水により蒸気を生成する。この排熱回
収ボイラー７の蒸気は蒸気タービン８へ移送され、ここ
でこの蒸気タービン８と上記発電機６とを駆動する。On the other hand, the combustion gas that has completed its work is supplied to the exhaust heat recovery boiler 7, where water is used to generate steam. Steam from the exhaust heat recovery boiler 7 is transferred to a steam turbine 8, where it drives the steam turbine 8 and the generator 6.
他方、仕事を終えた蒸気は、復水器９へ移送されて、再
び水に復水し、この復水は給水ポンプ１０によって給水
管１０ａを通して上記排熱回収ボイラー７へ供給されて
、再び蒸気に生成された後、上記蒸気タービン８へ循環
移送される。On the other hand, the steam that has completed its work is transferred to the condenser 9 and condensed into water again, and this condensate is supplied to the exhaust heat recovery boiler 7 through the water supply pipe 10a by the water supply pump 10, and is again converted into steam. After being generated, it is circulated and transferred to the steam turbine 8.
他方、第１図に示されるように、上記燃焼供給系４の燃
料を上記燃焼器３へ供給制御するのに、速度制御弁（Ｓ
ＲＶともいう）１１と燃焼ガス制御弁（ＧＣＶともいう
）１２で制御するように、上記上記燃焼供給系４には、
速度制御弁１１と燃焼ガス制御弁１２が順に付設されて
おり、この速度制御弁１１と燃焼ガス制御弁１２との間
の上記燃焼供給系４には、燃焼ガス圧力を検出する、例
えば、ガス圧力センサ−１３が付設されている。On the other hand, as shown in FIG. 1, a speed control valve (S) is used to control the supply of fuel from the combustion supply system 4 to the combustor 3.
The combustion supply system 4 includes:
A speed control valve 11 and a combustion gas control valve 12 are attached in this order, and the combustion supply system 4 between the speed control valve 11 and the combustion gas control valve 12 is provided with, for example, a gas A pressure sensor 13 is attached.
さらに、上記速度制御弁１１とガス圧力センサ−１３と
は燃焼保護制御装置１４の速度制御回路１５へ接続され
ており、上記速度制御弁１］と上記速度制御回路１５と
の間には、燃焼排ガス温度設定値を備えた速度制御弁側
保安制御装置１７が設けられている。さらに又、上記燃
焼ガス制御弁１２は上記燃焼保護制御装置１４の燃焼ガ
ス制御回路１６に接続されており、上記燃焼ガス制御弁
１２と燃焼ガス制御装置１６との間には、燃焼ガス圧力
設定値を備えた燃焼ガス制御弁側保安制御装置１８が設
けられている。又、上記速度制御回路１５と燃焼ガス制
御装置１６とは接続されており、この速度制御回路１５
と燃焼ガス制御装置１６は、上記速度制御弁１１と上記
燃焼ガス制御弁１２とを速度制御弁側保安制御装置１７
と燃焼ガス制御弁側保安制御装置１８とを介して互いに
制御するようになっている。Further, the speed control valve 11 and the gas pressure sensor 13 are connected to a speed control circuit 15 of the combustion protection control device 14, and between the speed control valve 1 and the speed control circuit 15, there is no combustion A speed control valve side safety control device 17 with an exhaust gas temperature set value is provided. Furthermore, the combustion gas control valve 12 is connected to the combustion gas control circuit 16 of the combustion protection control device 14, and there is a connection between the combustion gas control valve 12 and the combustion gas control device 16 for setting the combustion gas pressure. A combustion gas control valve side safety control device 18 with a value is provided. Further, the speed control circuit 15 and the combustion gas control device 16 are connected, and the speed control circuit 15
A combustion gas control device 16 connects the speed control valve 11 and the combustion gas control valve 12 to a speed control valve side safety control device 17.
and the combustion gas control valve side safety control device 18.
即ち、第１図に示されるように、上記速度制御回路１５
は、タービン回転数、燃焼ガス圧力Ｐａを入力し、この
タービン回転数から設定される燃焼ガス圧力Ｐａの設定
値と実圧との偏差信号に速度制御弁側保安制御装置１７
を加えた速度制御信号１５ｂとして上記速度制御弁１１
へ送信している。又、燃焼ガス制御装置１６は、タービ
ン回転数、負荷、燃焼排気ガス温度を入力し、それぞれ
の設定値と実測値との偏差信号を演算出力したものを、
燃焼ガス制御弁側保安制御装置１８を加えた燃焼ガス制
御信号１６ｂとして上記燃焼ガス制御弁１２へ送信して
いる。That is, as shown in FIG.
inputs the turbine rotation speed and combustion gas pressure Pa, and uses the speed control valve side safety control device 17 as a deviation signal between the set value of combustion gas pressure Pa set from the turbine rotation speed and the actual pressure.
The speed control valve 11 as the speed control signal 15b added with
is being sent to. In addition, the combustion gas control device 16 inputs the turbine rotation speed, load, and combustion exhaust gas temperature, and calculates and outputs a deviation signal between each setting value and the actual measurement value.
The combustion gas control valve side safety control device 18 is added to the combustion gas control signal 16b, which is sent to the combustion gas control valve 12 as a combustion gas control signal 16b.
又一方、第２図に示されるように、上記速度制御弁側保
安ｉ１１ＩＪｇａ装置１７は上記速度制御弁１１の開閉
の排気ガス温度の設定値を、ｆ （Ｘ）とし、（但し、
Ｘは負荷を示す）、実温度＞ｆｃＸ）のとき、上記速度
制御弁側保安制御装置１７の信号切換部１７ａが作動し
、上記速度制御信号１５ｂに全開信号として上記速度制
御弁１１へ送信し、この速度制御弁１１を全閉する。又
、第２図に示されるように、上記燃焼ガス制御弁側保安
制御装置１８は、上記燃焼ガス制御弁１２の開閉の燃焼
ガス圧力設定値を、ｇ （Ｙ）とし、（但し、Ｙは回転
数を示す）、実圧力＞ｇ（Ｙ）のとき、燃焼ガス制御弁
側保安制御装置１８の信号切換部１８ａが作動し、上記
燃焼ガス制御信号１６ｂに全閉信号として上記燃焼ガス
制御弁１２へ送信し、この燃焼ガス制御弁１２を全閉す
る。On the other hand, as shown in FIG. 2, the speed control valve side safety i11IJga device 17 sets the set value of the exhaust gas temperature for opening and closing of the speed control valve 11 to f (X) (however,
X indicates load), actual temperature > fc , this speed control valve 11 is fully closed. Further, as shown in FIG. 2, the combustion gas control valve side safety control device 18 sets the combustion gas pressure setting value for opening and closing of the combustion gas control valve 12 to g (Y) (where Y is When the actual pressure is > g (Y), the signal switching section 18a of the combustion gas control valve side safety control device 18 is activated, and the combustion gas control signal 16b is sent as a fully closed signal to the combustion gas control valve. 12, and the combustion gas control valve 12 is fully closed.
従って、今、上記燃焼供給系４の燃料は、上記ガスター
ビン５のガスタービン回転数に対応する条件で上記速度
制御弁１１によって燃焼ガス圧力Ｐａに制御され、さら
に、上記燃焼ガス制御弁１２を通して上記燃焼器３へ移
送された燃料は、ここで燃焼して、上述したようにガス
タービン５を駆動する。又、燃焼ガス圧力Ｐａを制御す
る上記速度制御弁１１とガスタービン回転数、負荷及び
燃焼排気ガス温度を制御する上記燃焼ガス制御弁１２と
は上記燃焼保護制御装置１４で制御している。Therefore, the fuel in the combustion supply system 4 is now controlled to the combustion gas pressure Pa by the speed control valve 11 under conditions corresponding to the gas turbine rotation speed of the gas turbine 5, and is further passed through the combustion gas control valve 12. The fuel transferred to the combustor 3 is combusted here to drive the gas turbine 5 as described above. The speed control valve 11 that controls the combustion gas pressure Pa and the combustion gas control valve 12 that controls the gas turbine rotation speed, load, and combustion exhaust gas temperature are controlled by the combustion protection control device 14.
又一方、燃焼排ガス温度設定値を越えたり、燃焼ガス圧
力設定値すると、上記速度制御弁側保安制御装置１７若
しくは上記燃焼ガス制御弁側保安制御装置１８が作動し
て、上記速度制御弁１１若しくは上記燃焼ガス制御弁１
２を全閉して、燃焼器３やこれら配管等の安全性を向上
を図るようになっている。On the other hand, if the combustion exhaust gas temperature exceeds the set value or the combustion gas pressure reaches the set value, the speed control valve-side safety control device 17 or the combustion gas control valve-side safety control device 18 operates, and the speed control valve 11 or The above combustion gas control valve 1
2 is completely closed to improve the safety of the combustor 3 and these piping.
〔発明の効果〕
以上述べたように本発明によれば、速度制御弁と速度制
御回路との間に燃焼排ガス温度設定値を備えた速度制御
弁側保安制御装置を設け、上記燃焼ガス制御弁と燃焼ガ
ス制御回路との間に燃焼ガス圧力設定値を備えた燃焼ガ
ス制御弁側保安制御装置を設けているので、燃焼排ガス
温度設定値を越えたり、燃焼ガス圧力設定値を越えたり
すると、上記速度制御弁側保安制御装置や上記燃焼ガス
制御弁側保安制御装置を作動して上記速度制御回路しく
は上記燃焼ガス制御弁を全閉して、燃焼器等の安全性を
向上を図ることができる。[Effects of the Invention] As described above, according to the present invention, a speed control valve-side safety control device having a combustion exhaust gas temperature set value is provided between the speed control valve and the speed control circuit, and the combustion gas control valve Since a combustion gas control valve-side safety control device with a combustion gas pressure set value is installed between the combustion gas control circuit and the combustion gas control circuit, if the combustion exhaust gas temperature exceeds the combustion gas pressure set value, Activating the speed control valve-side safety control device and the combustion gas control valve-side safety control device to fully close the speed control circuit or the combustion gas control valve to improve the safety of the combustor, etc. I can do it.
第１図は、本発明の燃焼制御保護装置のブロック線図、
第２図は、本発明の要部を取出して示すブロック線図、
第３図は、既に提案されているコンバインドサイクル発
電プラントの系統図、第４図は、既に提案されているコ
ンバインドサイクル発電プラントの系統図に組込まれる
燃料系バルブ制御のブロック線図である。
３・・・燃焼器、４・・・燃焼供給系、５・・・ガスタ
ービン、６・・・発電機、８・・・蒸気タービン、１１
・・・速度制御弁、１２・・・燃焼ガス制御弁、１４・
・・燃焼保護制御装置、１５・・・速度制御回路、１６
・・・燃焼ガス制御回路、１７・・・速度制御弁側保安
制御装置、１８・・・燃焼ガス制御弁側保安制御装置。
出願人代理人 佐 藤 −雄
第１図FIG. 1 is a block diagram of the combustion control protection device of the present invention;
FIG. 2 is a block diagram showing the main parts of the present invention;
FIG. 3 is a system diagram of a combined cycle power plant that has already been proposed, and FIG. 4 is a block diagram of fuel system valve control that is incorporated into the system diagram of a combined cycle power plant that has already been proposed. 3... Combustor, 4... Combustion supply system, 5... Gas turbine, 6... Generator, 8... Steam turbine, 11
...Speed control valve, 12...Combustion gas control valve, 14.
... Combustion protection control device, 15 ... Speed control circuit, 16
... Combustion gas control circuit, 17... Speed control valve side safety control device, 18... Combustion gas control valve side safety control device. Applicant's agent Mr. Sato Figure 1
Claims (1)
発電プラントにおける燃焼器の燃焼供給系に速度制御弁
を制御する速度制御回路と燃焼ガス制御弁を制御する燃
焼ガス制御回路を設けた燃焼制御保護装置において、上
記速度制御弁と速度制御回路との間に燃焼排ガス温度設
定値を備えた速度制御弁側保安制御装置を設け、上記燃
焼ガス制御弁と燃焼ガス制御回路との間に燃焼ガス圧力
設定値を備えた燃焼ガス制御弁側保安制御装置を設けた
ことを特徴とする燃焼制御保護装置。In a combustion control protection device in which a speed control circuit for controlling a speed control valve and a combustion gas control circuit for controlling a combustion gas control valve are provided in a combustion supply system of a combustor in a combined cycle power generation plant consisting of a plurality of power generation units, A speed control valve-side safety control device having a combustion exhaust gas temperature set value is provided between the speed control valve and the speed control circuit, and a combustion gas pressure set value is provided between the combustion gas control valve and the combustion gas control circuit. A combustion control protection device comprising a combustion gas control valve side safety control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6156089A JPH02241908A (en) | 1989-03-14 | 1989-03-14 | Combustion control protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6156089A JPH02241908A (en) | 1989-03-14 | 1989-03-14 | Combustion control protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02241908A true JPH02241908A (en) | 1990-09-26 |
Family
ID=13174621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6156089A Pending JPH02241908A (en) | 1989-03-14 | 1989-03-14 | Combustion control protecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02241908A (en) |
-
1989
- 1989-03-14 JP JP6156089A patent/JPH02241908A/en active Pending
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