JPS5870008A - Apparatus for controlling steam control valve of compound power plant - Google Patents
Apparatus for controlling steam control valve of compound power plantInfo
- Publication number
- JPS5870008A JPS5870008A JP16978081A JP16978081A JPS5870008A JP S5870008 A JPS5870008 A JP S5870008A JP 16978081 A JP16978081 A JP 16978081A JP 16978081 A JP16978081 A JP 16978081A JP S5870008 A JPS5870008 A JP S5870008A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- control valve
- turbine
- drum
- steam control
- 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
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
- F01K23/101—Regulating means specially adapted therefor
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ガスタービンと蒸気！−ビ／を一軸に結合し
て発Ｗ様を共用するようにした発電プラントの蒸気・加
減弁制御装置に関する。[Detailed Description of the Invention] The present invention relates to gas turbines and steam! The present invention relates to a steam/control valve control system for a power generation plant in which the V/W is connected to a single shaft so that the W output is shared.
最近の火力発電プラントに課せられた要求として、燃料
価格の高騰による熱効率の向上、火力の建ドル化の一環
としての起動・停止を含む負荷追従性の向上などがあげ
られるが、これらに対してガスタービンと蒸気タービン
を組み合せた複合発電プラントが脚光を浴びてきている
。特に静近では１発電プラントの部分負荷運転における
熱効率の向上までも要求されるようになり、ガスタービ
ンと：＠タタービンを一軸に結合して発電機を共用する
一軸形複合発電プラントが採用されつつある。Recent demands placed on thermal power plants include improvements in thermal efficiency due to soaring fuel prices, and improvements in load followability, including start-up and shutdown, as part of the decentralization of thermal power plants. Combined power generation plants that combine gas turbines and steam turbines are gaining attention. Particularly in the near future, improvements in thermal efficiency during partial load operation of a single power generation plant are required, and single-shaft combined cycle power plants, in which a gas turbine and a turbine are combined into a single shaft and share a generator, are being adopted. be.
この−軸形複合発電プラントの構成を第１図により［９
明すると、大気中の空気゛／は圧縮機−により圧縮され
、燃婢器３にて、憎料調節弁参を通り遣られてきた燃料
ｊと混合し炉焼する。高温になった燃暁ガスｔは、ター
ビ／７にて膨張仕事なＬ７、ターピ／７の排気ガスｒけ
排熱回収ボイラヂにて、それのもつ熱青を蒸気量として
回収される。給水ボ／プ（図示せず）から送られてきた
給水ＩＯは、給水調節弁／ｌにてその流量をドラムｌ：
ｌの水位に応じて調節され１節炭器／３で加熱され、ド
ラム／２へ送られる。ドラム１２内の高圧高温水／亭は
、循環ポンプ１３で蒸気器１６へ送られて蒸気１７とな
シ、ドラムｌコヘ戻される。ドラム１２内の蒸気はさら
に加熱器／ＩＫて加熱され、主蒸気ライン記を経て蒸気
タービン１９の主蒸気止め弁に、蒸気加減弁Ｕを通り。The configuration of this -axial combined cycle power plant is shown in Figure 1 [9
Specifically, air in the atmosphere is compressed by a compressor, mixed with fuel j that has passed through the fuel control valve in the combustor 3, and burned in the furnace. The high-temperature combustion gas t is subjected to expansion work in the turbine/7, and the thermal blue contained therein is recovered as steam in the exhaust gas r exhaust heat recovery boiler of the turbine/7. The feed water IO sent from the water supply valve (not shown) is controlled to adjust its flow rate to the drum by the water supply control valve.
It is adjusted according to the water level of 1, heated by economizer/3, and sent to drum/2. The high-pressure, high-temperature water in the drum 12 is sent to the steamer 16 by a circulation pump 13 and returned to the drum 1 as steam 17. The steam in the drum 12 is further heated by the heater/IK, and passes through the main steam line, the main steam stop valve of the steam turbine 19, and the steam control valve U.
蒸気タービン１９で岸張し１復水器ｎにて彷水される。It is shored up by a steam turbine 19 and released by a condenser n.
主蒸気ラインＪには、排熱回収ボイラタの起動時のドラ
ムノコの蒸気を安定化させるなめに、ターピンバイパス
減圧弁ｙと減温装＃ｊが設けてあり、蒸気を復水器ｎへ
逃がすようになっている。The main steam line J is equipped with a turpin bypass pressure reducing valve y and a temperature reduction device #j to stabilize the steam generated by the drum saw when the exhaust heat recovery boiler is started, and to release the steam to the condenser n. It has become.
圧縮機λとガスタービｙ７、蒸気タービン／９は一軸に
結合され、発Ｗ轡３を共用ｌている。The compressor λ, the gas turbine y7, and the steam turbine/9 are connected to one shaft and share the generator W 3.
この上うな一軸形複合発電プラントにおいては、ガスタ
ービン、茎気タービンの回転数、ｉＡ’＄ｆ制御はすべ
てガスタービン側の制御装置でおこなわれるのが通例で
あり、蒸気タービン＠には特に調速機能等はもたせてお
らず、通常の負荷運転時は誹／図の蒸気加減弁２／は全
開となっている。Furthermore, in such a single-shaft combined cycle power plant, the rotational speed of the gas turbine and stem air turbine, and iA'$f control are all controlled by the gas turbine side control device, and the steam turbine is specially controlled. It does not have a speed function, etc., and the steam control valve 2/ shown in the figure is fully open during normal load operation.
−軸形複合発電ブラフ）Ｋおける前述の蒸気加減弁Ｊ／
およびタービンバイパス弁νの動作な、ガスタービンの
状態に対比させて第１図によって説明する・横軸は時間
ｔでありａ ＋ ａ’ 、 ｂ 、 ａ 、 ａ点は各
々起動、着火、暖機、ガスタービン定格回転数到達、併
入を示す、特性曲線Ａ、Ｂ、Ｏは各々ガスタービン回転
数、蒸気加減弁２／の開度、タービンバイパス弁Ｊの開
度を示す、ガスタービンに起動信号が入ると、起動モー
タによりガスタービンは約３％回転まで上り着火される
（第一図ａ′点）。その移排熱回収ボイラタの暖機のた
めガスタービンは約ＩＫ）り回転数にて自動運転される
（ｂ点）。暖機の絆過と共にドラム／２より蒸気が発生
し、タービンバイパス弁ユ’４により主′＠気圧カの制
御がおこなわねる。ガスタービンが定格回転数に到達す
ると（０点）、蒸気タービンのをリンクヲオこなうため
に、蒸気加鞍弁コ／が微開してクーリング蒸気を流す６
ガスタービンの併入時（ｄ点）では併入操作を容易にす
るため蒸気加減弁２／は一時全開し、併入完了後はラン
プ状に全開まで到達する・タービンバイパス弁ｊμは、
上記蒸気加減弁２１の動作に応動じて圧力制御がおこな
われ。- The above-mentioned steam control valve J/ in the axial combined power generation bluff) K
The operation of the turbine bypass valve ν and the operation of the gas turbine will be explained with reference to FIG. Characteristic curves A, B, and O indicate the gas turbine rotation speed, the opening degree of the steam control valve 2/, and the opening degree of the turbine bypass valve J, respectively. When the signal is input, the gas turbine is ignited by the starting motor to a speed of about 3% (point a' in Figure 1). To warm up the heat transfer and exhaust heat recovery boiler, the gas turbine is automatically operated at a rotation speed of approximately IK) (point b). As the engine warms up, steam is generated from the drum 2, and the main air pressure cannot be controlled by the turbine bypass valve 4. When the gas turbine reaches its rated speed (point 0), the steam addition valve opens slightly to allow cooling steam to flow in order to link the steam turbine.
At the time of joining the gas turbine (point d), the steam control valve 2/ is temporarily fully open to facilitate the joining operation, and after the joining is completed, it reaches full open in a ramp-like manner.・Turbine bypass valve jμ is
Pressure control is performed in response to the operation of the steam control valve 21.
蒸気加減弁コ／の全開動作に併ない全閉する。その彼、
タービンバイパス弁誹の圧力設定は、定格主蒸気圧力の
上側へ設定され、安全弁としての役割を果す。Fully closes as the steam control valve fully opens. That him,
The pressure setting of the turbine bypass valve is set above the rated main steam pressure and serves as a safety valve.
しかしながら、このような従来の蒸気加減弁の操作方式
では、蒸気加減弁コｌがランプ状開時の場合、主蒸気圧
力、ドラム水位等に大永な外乱となゆ、ドラム水位高／
低によるトリップなどを誘発する可能性が極めて高い。However, in such a conventional steam control valve operation method, when the steam control valve is open in a ramp-like manner, it causes a long disturbance to the main steam pressure, drum water level, etc.
There is a very high possibility that a trip due to low voltage will occur.
発明の目的
本発明はかかる点に鑑みたもので、その目的は上記１％
ｉ１題点を解決しｔ−軸形複合登市プラ／トの蒸気加減
弁制御装置を提供することである。Purpose of the Invention The present invention has been made in view of the above points, and its purpose is to
It is an object of the present invention to solve the problem I1 and to provide a steam control valve control device for a T-axis type composite plate/plate.
発明の構成
この目的達成のため、本発明では、ガスタービンと蒸気
タービンを一軸罠結合して発ｗｒｓを共用し、且つ排熱
回収ボイラを具備する一軸形複合発電プラントにおいて
、−上記排熱回収ボイラからの蒸気を上記蒸気タービン
に送る途中に設けられた蒸気加減弁の開度を、上記排熱
回収ボイラのドラム水位の高低、上記排熱回収ボイラか
らの蒸気を復水器に送る途中に設けられたタービンバイ
パス弁の開度に応じて制御させるようにして成ることを
特徴とする複合発電プラントの蒸気加減弁制御装置を構
成したものである。Composition of the Invention In order to achieve this object, the present invention provides a single-shaft combined cycle power plant in which a gas turbine and a steam turbine are coupled in a single-shaft trap to share power generation, and is equipped with an exhaust heat recovery boiler. The opening degree of the steam control valve installed on the way to send the steam from the boiler to the steam turbine, the height of the drum water level of the waste heat recovery boiler, and the opening degree of the steam control valve installed on the way to send the steam from the waste heat recovery boiler to the condenser. This is a steam control valve control device for a combined power generation plant, which is characterized in that it is controlled in accordance with the opening degree of a provided turbine bypass valve.
次に、本発明の具体例を第３図に示す実施例により設問
する。ガスタービン起動時は、接点２ｇが閉じ、また接
点、襠は開いており、弁全閉信号発生器：ｔ７からの全
閉信号が該接点２ｇを介して加薄器２９に送られ、その
加ａ′器コ９のｄ′、力信号がサーボ増幅器、ｑｏｔｙ
介１．て蒸気加減弁２／に決られる。蒸気加減弁２／の
開傘は、その開度に応じて出力を変化させる差動トラン
ス（図示せｆ）の出力をり調する彷読器３１から加算器
２９ヘフイードバツクされる仁月に＊Ｆ）、開度制御が
なされる。ガスタービンが９柊回転数へ到達十ろと、接
点３ｇが開六、接点３２が閉じ、弁最小開度信号発生器
３３からの最小開窄信号が接点３コおよび加算器、２９
をｌイてサーボ増幅器、？。Next, we will discuss specific examples of the present invention using the embodiment shown in FIG. When the gas turbine is started, the contact 2g is closed, and the contact and gossamer are open, and the fully closed signal from the valve fully closed signal generator t7 is sent to the thinner 29 via the contact 2g, and its addition a'd' of 9, the force signal is the servo amplifier, qoty
Intervention 1. It is determined by the steam control valve 2/. The opening of the steam control valve 2/ is fed back to the adder 29 from the reader 31, which adjusts the output of a differential transformer (f not shown) that changes the output according to its opening degree.*F ), the opening is controlled. When the gas turbine reaches 9 Hiiragi rotational speed, the contact 3g opens, the contact 32 closes, and the minimum opening signal from the valve minimum opening signal generator 33 is transmitted to the contact 3 and the adder 29.
What about the servo amplifier? .
へ送られ、蒸気加減弁コ／は最小開度開き、クーリング
蒸気を蒸気タービン１９へ伍す。その稜併入条件が成立
すると、再び接点２１が閉じ、接点３２が開き、蒸気加
減弁２／は全閉となる。併入完了により 。The cooling steam is sent to the steam turbine 19 by opening the steam control valve to its minimum opening. When the ridge joining condition is satisfied, the contact 21 closes again, the contact 32 opens, and the steam control valve 2/ is fully closed. Due to completion of annexation.
接点ｕ、３２はいずれも開き、接点３μが閉じてランプ
回路３５からの開度信号が、３種類の開度変化率設定器
３４〜３ｔに応じて、加算器２ｑに入力され、蒸気加減
弁コ／はランプ状に開動作をする。開度変化率設定器３
６は零設宇であり、この出力がリレー３９を介してラン
プ回路、３３に入力されると、蒸気加減弁コｌは一定開
度に保持される。開度変化率設定器３７は低速設定であ
り、この出力がリレー帖を介して入゛力されると、蒸気
加減弁２７１ま低速で開動作をおこなう、開度変化率設
定器３Ｆは高速設定であり、この出力がリレーｔＡ／を
介ｌ、て入力されると、蒸気加減弁２１は高速で開動作
をおこなう。Contacts u and 32 are both open, contact 3μ is closed, and the opening signal from the lamp circuit 35 is input to the adder 2q according to the three types of opening change rate setters 34 to 3t, and the steam control valve is / opens in a ramp-like manner. Opening change rate setting device 3
Reference numeral 6 indicates a zero setting, and when this output is inputted to the lamp circuit 33 via a relay 39, the steam control valve 1 is maintained at a constant opening degree. The opening change rate setting device 37 has a low speed setting, and when this output is input through the relay, the steam control valve 271 also opens at a low speed, and the opening change rate setting device 3F has a high speed setting. When this output is input via relay tA/1, steam control valve 21 performs an opening operation at high speed.
リレー３９〜ｔ／の閉成のφ件を第＋Ｈに示す。第μ図
において符号り、ダ、７はそれぞれ第１［シ１における
タービンバイパス弁Ｊの開イｔ７号、閉信号入力部であ
る。符号杯、りｊ、弘ｔはそれぞｈｆＰ、７図における
ドラムノコの水位の高、正常、低を示す有；号入力部で
ある。弘７，４ｃざ、ダ９．３０はアンドゲート１．夕
／。The φ event of closing relays 39 to t/ is shown in +H. In FIG. μ, reference numerals 7, 7 are the open and close signal input portions of the turbine bypass valve J in the first case 1, respectively. The symbols ``HfP'' and ``Hirot'' are the input portions indicating the high, normal, and low water level of the drum saw in Fig. 7, respectively. Hiro 7,4cza, da 9.30 is and gate 1. evening/.
５．２はオアゲートである。従って、第１図のジ−タン
スから容易忙示されるように、タービンバイパス弁Ｊが
開いておシ、ドラム／コの水位が正常または低水位の場
合、あるいはタービンバイパス弁護が全閉し、ドラムレ
ベルが低水位の場合には、蒸気加減弁コ／が高速で開け
られる。すなわち、蒸気発生器系統に十分な蒸気源を有
している場合は、蒸気加減弁２／が高速で開がれ負荷追
従性が良くなっている。5.2 is an or gate. Therefore, as can be easily seen from the diatance in FIG. If the level is low, the steam control valve is opened at high speed. That is, when the steam generator system has a sufficient steam source, the steam control valve 2/ is opened at high speed and the load followability is improved.
次に、タービンバイパス弁Ｊが全閉でドラム１２）水位
カ正常な場合、あるいはタービンバイパス弁Ｊが開いて
おりドラム／２０才位が高水位の場合は、蒸気加減弁２
／が低速で開けられる。すなわち。Next, if the turbine bypass valve J is fully closed and the drum 12) water level is normal, or if the turbine bypass valve J is open and the water level is high in the drum 12), then the steam control valve 2
/ can be opened at low speed. Namely.
蒸気発生器系統に十分な萎気源が偵い場合には、蒸気加
減弁２／の開動作が遅くなり主蒸気圧力、ドラム氷位の
変動が極力少なく押えられる。When a sufficient source of withering air is present in the steam generator system, the opening operation of the steam control valve 2/ is delayed, and fluctuations in the main steam pressure and drum ice level are kept to a minimum.
さらに、タービンバイパス弁Ｊが全閉シ、ドラム／、２
のｐ位が高水位以上の場合は、紫気加減弁２１の開度が
ホールドされ、ドラム／２が安定するのをまつ。Furthermore, the turbine bypass valve J is fully closed, and the drum/2
When the p level is higher than the high water level, the opening degree of the purple air control valve 21 is held to wait for drum/2 to stabilize.
発明の効果
以上のよう忙、本発明に係る制御装ｆＫよれば、蒸気加
減弁の開動作が適正圧制御されるようになり、複合発電
プラントの起動時における蒸気発生器系統に大幅な安定
化をもたらすことができ、起動時の信頼性を増すことが
できる。Effects of the Invention As described above, according to the control system fK according to the present invention, the opening operation of the steam control valve can be controlled at an appropriate pressure, resulting in significant stabilization of the steam generator system at the time of startup of a combined cycle power plant. This can increase reliability during startup.
第１図は一軸形複合発電プラントの系統図、第２図は同
プラントにおけるガスタービン回転数Ａ、蒸気加減弁の
開９Ｂ、タービンバイパス弁の関度Ｃの関係を示す図、
第３図は本発明の一実施例の蒸気加減弁の制御製鎖の回
路図、第１図は第３図におけるリレー３９−４／の制御
回路の回１ｉ８１）７１である。
コ・・・圧縮機、３・・・＃管器、７・・・ガスタービ
ン、り・・・排熱回収ボイラ、／り・・・蒸タドラム、
／９・・・蒸儲タービン、コト・・驚気加減弁、Ｊ・・
・タービンバイパス弁、コア・・・蒸気加減弁の弁全閉
信号発生器、３３・・・蒸気加減弁の弁最小開度信号発
生器、３Ｓ・・・ランプ回路１．？６． 、？？ 、
、？ざ・・・蒸気加減弁の開度変化率設定第１図FIG. 1 is a system diagram of a single-shaft combined cycle power plant, and FIG. 2 is a diagram showing the relationship among the gas turbine rotation speed A, the opening 9B of the steam control valve, and the relationship C of the turbine bypass valve in the same plant.
FIG. 3 is a circuit diagram of a control chain for a steam control valve according to an embodiment of the present invention, and FIG. 1 is a circuit 1i81) 71 of a control circuit for relay 39-4/ in FIG. Co...Compressor, 3...#Pipe, 7...Gas turbine, R...Exhaust heat recovery boiler, /R...Steamer drum,
/9... Steam turbine, thing... surprise control valve, J...
- Turbine bypass valve, core... Fully closed valve signal generator for the steam control valve, 33... Minimum valve opening signal generator for the steam control valve, 3S... Lamp circuit 1. ? 6. ,? ? ,
,? Figure 1: Steam control valve opening change rate setting
Claims (1)
共用し、且つ排熱回収ボイラを具備する１軸形複合発電
プランＨＣおいて、上記排熱回収ボイラからの蒸気を上
記蒸気タービｙＫ送る途中に設けられた蒸気加減弁の開
度を、上記排熱ｐ１収ボイラのドラム水位の高低、上記
排熱回収ボイラからの蒸気をゆ水粉に送る途中に設（す
られたタービンバイパス弁の開度に応じて制御させるよ
うにして成ることを特徴とする複合発電プラントσ）蒸
気加減弁制御装置。In a single-shaft combined power generation plan HC in which a gas turbine and a steam turbine are combined into a single shaft to share a generator and are equipped with an exhaust heat recovery boiler, steam from the exhaust heat recovery boiler is sent to the steam turbine yK. The opening degree of the steam control valve installed in σ) A steam control valve control device for a combined power generation plant, characterized in that it is controlled according to σ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16978081A JPS5870008A (en) | 1981-10-23 | 1981-10-23 | Apparatus for controlling steam control valve of compound power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16978081A JPS5870008A (en) | 1981-10-23 | 1981-10-23 | Apparatus for controlling steam control valve of compound power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5870008A true JPS5870008A (en) | 1983-04-26 |
| JPS639084B2 JPS639084B2 (en) | 1988-02-25 |
Family
ID=15892721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16978081A Granted JPS5870008A (en) | 1981-10-23 | 1981-10-23 | Apparatus for controlling steam control valve of compound power plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5870008A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2352778A (en) * | 1999-07-30 | 2001-02-07 | Abb Alstom Power Ch Ag | Run-up of a combined power station by determining a load gradient of a gas turbine from parameters of a steam turbine |
| CN107387182A (en) * | 2017-09-04 | 2017-11-24 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of back pressure turbine starts Analysis of Exhaust Steam Recovering System |
| CN113531513A (en) * | 2021-07-28 | 2021-10-22 | 哈尔滨沃华智能发电设备有限公司 | Protection method of steam drum water level control system during steam inlet regulating valve failure of steam-driven water supply pump |
-
1981
- 1981-10-23 JP JP16978081A patent/JPS5870008A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2352778A (en) * | 1999-07-30 | 2001-02-07 | Abb Alstom Power Ch Ag | Run-up of a combined power station by determining a load gradient of a gas turbine from parameters of a steam turbine |
| CN107387182A (en) * | 2017-09-04 | 2017-11-24 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of back pressure turbine starts Analysis of Exhaust Steam Recovering System |
| CN107387182B (en) * | 2017-09-04 | 2023-06-20 | 中国电力工程顾问集团西南电力设计院有限公司 | Back pressure type steam turbine starting exhaust steam recovery system |
| CN113531513A (en) * | 2021-07-28 | 2021-10-22 | 哈尔滨沃华智能发电设备有限公司 | Protection method of steam drum water level control system during steam inlet regulating valve failure of steam-driven water supply pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS639084B2 (en) | 1988-02-25 |
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