JPS6038507A - Controller for heating steam for feedwater heater - Google Patents
Controller for heating steam for feedwater heaterInfo
- Publication number
- JPS6038507A JPS6038507A JP58146554A JP14655483A JPS6038507A JP S6038507 A JPS6038507 A JP S6038507A JP 58146554 A JP58146554 A JP 58146554A JP 14655483 A JP14655483 A JP 14655483A JP S6038507 A JPS6038507 A JP S6038507A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- feed water
- pressure
- water heater
- 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.)
- Pending
Links
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
- Y02E30/00—Energy generation of nuclear origin
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
「発明の技術分野」
本発明は例えば原子力発電プラントの原子炉に入る給水
温度を調整する給水加熱器の加熱蒸気制御装置に関する
。DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD OF THE INVENTION The present invention relates to a heating steam control device for a feed water heater that adjusts the temperature of feed water entering a reactor of a nuclear power plant, for example.
［発明の技術的前頭とその問題点」
原子力発電プラントでは、プラントの熱ＩＪｉ’ｒ′の
向上、蒸気発生器（原子炉）での安定な蒸気の発生のた
めに、復水器より原子炉までの給水ライン中に設（プら
れた複数の給水加熱器で給水とタービン抽気の熱交換を
行わせて給水温度を上Ｒさけ−（いる。原子力発電プラ
ントの給水加熱器（−は、−この加熱蒸気であるタービ
ン抽気がほぼ飽和状態の蒸気であることから、加熱蒸気
の温度は給水加熱器の器内圧力のみの関数と考えてよい
。ま１．：給水加熱器内での熱交換の大部分が蒸気の凝
縮熱によるものであるため、給水加熱器の加熱側のｆｆ
＋Ａ Ｉ（Ｌｉ １．Ｌ、その器内圧力で決る蒸気の温
度で一様に４１つでいる。このために給水の給水加熱器
出し１でのｆｉｉｌｆ ＩＦＪは、給水加熱器の器内圧
により操作でき、本１内月力を高くするとより高温の給
水温度、器内１ｆ力を低くするとより低温の給水温度が
得られる。[Technical Overview of the Invention and Its Problems] In nuclear power plants, in order to improve the heat IJi'r' of the plant and to generate stable steam in the steam generator (reactor), it is necessary to use the reactor rather than the condenser. In order to increase the temperature of the feed water by exchanging heat between the feed water and the turbine bleed air, multiple feed water heaters installed in the water supply line up to Since the turbine extracted air, which is this heating steam, is almost saturated steam, the temperature of the heating steam can be considered to be a function only of the internal pressure of the feedwater heater. 1.: Heat exchange within the feedwater heater Most of the ff on the heating side of the feed water heater is due to the heat of condensation of the steam.
+A I (Li 1.L, 41 is uniformly determined by the steam temperature determined by the internal pressure of the vessel.For this reason, the fiilf IFJ at the feed water heater outlet 1 of the feed water is operated by the internal pressure of the feed water heater. By increasing the power inside the vessel, a higher temperature can be obtained, and by lowering the power inside the vessel, a lower temperature can be obtained.
このような特性から発電プラントの給水加熱２：）は、
複数台のものが復水器から原子炉までの給水ラインにも
設けられ、それらに入れる抽気のＩＦ力を順次高くして
おくことにより、給水の温度を段階的に上昇さけている
。給水温度の制御装置は、原子炉に入れる給水の温度を
ある範囲内に保つために設【プられるもので、その従来
例による構成はｄ３ Ｊ３むね第１図のように４１１１
成されている。Due to these characteristics, feed water heating in power plants2:) is
Multiple units are also installed in the water supply line from the condenser to the reactor, and by increasing the IF power of the bleed air introduced into them one after another, the temperature of the supply water is gradually raised. The feed water temperature control device is installed to maintain the temperature of the feed water entering the reactor within a certain range, and its conventional configuration is 4111 as shown in Figure 1.
has been completed.
づなわら、第１図において、原子炉の蒸気発生器１３か
ら出／’−蒸気１は、蒸気加減弁２を通って蒸気タービ
ン３へ尋かれたのち、逆止弁１２ｂを通って給水加熱器
４に入る。給水器４を出た給水は、原子炉１３に送られ
るが、炉に入る給水の温度は、原子炉での蒸発量に対し
て第２図の斜線部で示寸ような範囲にあることが要求さ
れる。給水加熱器４での給水の加熱は、主としてタービ
ン３の抽気によって行われる。タービン抽気の圧力は、
タービンの加減弁２、タービン３を通る蒸気流量によっ
て決まる。またこの蒸気間は、はぼ原子炉の熱光ｆｉｄ
ど等しい。ざらに上Ｊのように給水の温度は、加熱蒸気
の圧力によって決まるので、タービン抽気のみで給水を
加熱Ｊ−ると、給水加熱器４の出力給水温度は、第２図
の特性ＰＱＲのような線上を動ぎ、蒸発量の少ない所で
は要求される湿度以下になる。In FIG. 1, steam 1 from the steam generator 13 of the nuclear reactor passes through the steam control valve 2 to the steam turbine 3, and then passes through the check valve 12b to the feed water heater. Enter 4. The feed water that exits the water supply device 4 is sent to the reactor 13, but the temperature of the feed water entering the reactor is likely to be within the range shown by the shaded area in Figure 2 relative to the amount of evaporation in the reactor. required. The feed water is heated in the feed water heater 4 mainly by extraction air from the turbine 3 . The turbine bleed air pressure is
It is determined by the steam flow rate passing through the turbine control valve 2 and the turbine 3. Also, between this steam is the thermal light fid of the Habo nuclear reactor.
Equal. Roughly speaking, the temperature of the feed water is determined by the pressure of the heating steam, so if the feed water is heated only by the turbine extraction air, the output water temperature of the feed water heater 4 will be as shown in the characteristic PQR in Figure 2. In areas where the amount of evaporation is small, the humidity will be below the required level.
このために給水加熱器４に入るクーヒン抽気ｊ１力を測
定しておいて、タービン抽気圧力が低下し、給水加熱器
４の器内圧力が第２図のＱ ＋Ａ＋に相当りる圧ノｊま
で低１”−！Ｉるど、圧力スイッチ５５にＪす１５：号
を発生さばて調節弁６を間し、Ｂ ２品、Ｉ：：＋ Ｉ
ｆの１蒸気を逆止弁１２ａを介して給水加熱ｉｉＳ ４
にン」大して給水温度を上昇さぼる。逆にタービン抽気
１ｊ力が上昇しＱ点に相当づる値以上になると、圧力ス
イッチ４５により信号を発生さＵて調ｎＤ弁０を閉づる
。このような調節弁６の開閉方法は、本説明のような抽
気圧力を測定し圧力スイッチ（゛開閉づる方法、あるい
は給水加熱器４の器内圧力＋ ；ＩＩＩ定し圧）Ｊスイ
ッチで開閉する方法、あるいは給水加熱器４の給水出口
温度を測定し渇庶スーｒツｆ −（開閉Ｊる方法のいず
れにＪ３いても同様な）幾能を宋ず。For this purpose, the Kuchin bleed air j1 force entering the feed water heater 4 is measured, and the turbine bleed air pressure decreases until the internal pressure of the feed water heater 4 reaches a pressure no. j corresponding to Q + A + in Fig. 2. Low 1"-!I, generate JS15: to pressure switch 55, close control valve 6, B2 products, I::+I
1 steam of f through the check valve 12a to heat the feed water iiS 4
The temperature of the water supply will be significantly increased. Conversely, when the turbine extraction force 1j increases and exceeds the value corresponding to the Q point, the pressure switch 45 generates a signal and closes the control valve 0. The method of opening and closing such a control valve 6 is to measure the bleed air pressure as described in this explanation and open and close it with a pressure switch ('opening/closing method, or internal pressure of the feed water heater 4 +; III constant pressure) J switch. method, or measure the water supply outlet temperature of the water supply heater 4 and determine the function of the water supply (same regardless of whether it is opened or closed).
このようないずれの方法においても、調１ｉｉｉ弁ぐ）
には全開、または全開の信号が入るので、ＡＩ：ｌ １
ｉｉｉ Ｊｉ’６はそれ自身の固有の速度で全開から全
開、全開から全開へと動作する。このように調節弁６が
働くことによって、主蒸気ラインから多聞の蒸気が給水
加熱器４に流れるため、主蒸気ラインの圧力を低下ざｌ
るように蝕く。通常の原子カプラントではタービン３の
加減弁２は主蒸気ラインの圧力を一定とするように制御
されているので、このように主蒸気ラインから給水加熱
器４に蒸気を流すと、加減弁２が閉としてタービン３に
流す蒸気ｍを減じ、主蒸気ラインの圧力を一定とげるよ
うに動くが、この時タービン３に流れる蒸気量が減少す
るためにタービンの出力が低下する。その後、原子炉側
で出力を増加させ、蒸発量を増すことによってタービン
３の加減弁２は元の状態まで間し、出力を元の状態まで
戻すことができるが、調節弁６の開閉速度が早い時には
、原子炉側の制御の遅れによってタービンの出力低下が
大ぎくなる。In any of these methods,
Since the full open or full open signal is input to the , AI:l 1
iii Ji'6 moves from full to full and from full to full at its own inherent speed. By operating the control valve 6 in this way, a large amount of steam flows from the main steam line to the feed water heater 4, which reduces the pressure in the main steam line.
It eats away at you. In a normal nuclear coupler plant, the regulator valve 2 of the turbine 3 is controlled to keep the pressure in the main steam line constant, so when steam flows from the main steam line to the feedwater heater 4 in this way, the regulator valve 2 When the main steam line is closed, the steam m flowing to the turbine 3 is reduced and the pressure in the main steam line is kept constant, but at this time, the amount of steam flowing to the turbine 3 is reduced, so the output of the turbine is reduced. After that, by increasing the output on the reactor side and increasing the amount of evaporation, the regulating valve 2 of the turbine 3 returns to its original state, and the output can be returned to its original state, but the opening/closing speed of the regulating valve 6 is If it is too early, the turbine output will drop significantly due to delays in reactor-side control.
このように調節弁６の早い開閉は、原子力発電プラント
の出力に外乱を与える。また主蒸気ラインの圧力が低下
すると、原子炉内の圧力も低下するので、炉内にある飽
和水が圧力低下によつＣ８１：騰する。このため炉水位
、核反応に外乱を！ｊえることになる。In this way, the rapid opening and closing of the control valve 6 causes a disturbance to the output of the nuclear power plant. Furthermore, when the pressure in the main steam line decreases, the pressure in the reactor also decreases, and the saturated water in the reactor rises due to the pressure decrease. This causes disturbance to the reactor water level and nuclear reaction! I'm going to be able to do it.
［発明の目的］
本発明の目的は、給水温度の制御を１１い、かつタービ
ン出力、原子炉制御への外乱を少くりる給水加熱器の加
熱蒸気制御装置を供給りるにある、。[Object of the Invention] An object of the present invention is to provide a heating steam control device for a feed water heater that can control the feed water temperature and reduce disturbances to turbine output and reactor control.
［発明の概要］
本発明による給水加熱器の加熱蒸気制御、）４ ’ｒｊ
は、給水加熱器に入る抽気蒸気の圧力を検知りる月力検
知器、この検出圧ノｊと設定値どの比較によ−）（主蒸
気を給水加熱器へ流す蒸気を制御Ｊる調１ｔｉｉ弁に全
開信号又は全閉信号を発Ｊる比較器ど、この比較器から
調節弁に送る信号を一定率どりるＶｋ、 Ｉｆ；率制限
器どの組合わせににす、給水加熱器ｌ＼の加熱蒸気を抽
気蒸気から主蒸気へ徐々に切り変えるようにしたことを
特徴どする。[Summary of the invention] Heating steam control of a feed water heater according to the present invention, )4'rj
is a monthly power detector that detects the pressure of bleed steam entering the feedwater heater, and how does this detected pressure compare with the set value? A comparator that sends a fully open signal or a fully closed signal to a valve, and a signal sent from this comparator to a control valve at a constant rate Vk, If; It is characterized in that the heating steam is gradually switched from extraction steam to main steam.
［発明の実施例］
以下本発明を第１図、第３図および４２５図に示す実施
例について説明する。本発明におい０６用する発電プラ
ン１−は、第１図に示す構成と同様であり、本発明では
、このような発電プラントにおける給水加熱器４に対す
る加熱蒸気を抽気蒸気から主蒸気へ切換えるのに徐々に
ｆ）わぜる制御装置２０をイ」設したものである。[Embodiments of the Invention] The present invention will be described below with reference to embodiments shown in FIGS. 1, 3, and 425. The power generation plan 1- used in the present invention is similar to the configuration shown in FIG. A control device 20 that gradually changes f) is installed.
Ｊ−なりら、この制御装置は、第３図に示すように圧ノ
ｊ検出器７、比較検出器８、変化率制限器９および電／
空敲換器１０を備え、電／空変換器１０の空気信号によ
って主蒸気を給水加熱器へ尋く調節弁６を制御するよう
に（１１１成されている。As shown in FIG.
An air exchanger 10 is provided, and the air signal from the electric/air converter 10 is used to control the control valve 6 for supplying main steam to the feed water heater (111).
そして圧力検出器７は蒸気タービン３から給水加熱器４
へ導く抽気蒸気の圧力Ｐを検出するものである。比較検
出器８は、圧力検出器７の検出圧力Ｐと予め設定してい
る開設定値ｐｏおよび閉設定値１）Ｃどを比較し、検出
圧力ｌ〕が閉設定値ｐｃより高い時（Ｐ＞Ｐｃ ）には
、調節弁６を全開とする信号を出ノＪし、検出圧力Ｐが
開設定値ｐｏより低い時（Ｐ＜ＰＯ）には、調節弁６を
全開とすぐ る信号を出力し、そして圧力の設定値は、
ｐｏ＜Ｐｃとしてその出力信号はヒステリシス性を持つ
ている。変化率ｍｌ限器９は比較検出器８の出力１８号
を入力し、この入力信号の変化率を制限して徐々に変化
ザる出力を発する。電／閑変換器１０は変化率制限器９
の電気（８号を空気信号に変換しく調節弁６に空気信号
を発するものである。The pressure detector 7 is connected to the feed water heater 4 from the steam turbine 3.
This is to detect the pressure P of the extracted steam that is led to. The comparison detector 8 compares the detected pressure P of the pressure detector 7 with a preset open set value po and a closed set value 1) C, and when the detected pressure l] is higher than the closed set value pc (P> Pc) outputs a signal to fully open the control valve 6, and when the detected pressure P is lower than the opening set value po (P<PO), outputs a signal to fully open the control valve 6; And the pressure setting value is
As po<Pc, the output signal has hysteresis. The rate of change ml limiter 9 inputs the output No. 18 of the comparison detector 8, limits the rate of change of this input signal, and produces an output that changes gradually. The electric/quiet converter 10 is a rate of change limiter 9
It converts the electricity (No. 8) into an air signal and issues an air signal to the control valve 6.
本発明の制御装置２０はこのように４１１７成さ１して
いるので、タービン３を流れる蒸気量が多く ｉ；Ｌっ
て抽気圧力Ｐが開設定値Ｐｏよりも１１）１いＰ〉１０
時には調節弁６は閉しており、給水加熱ｉＶｉ ４ ＋
Ｌ、 ＩＪシタ−ン３から抽気蒸気が送られて給水を加
！；！！ ’Ｊ’る。タービン３を流れる蒸気量が減少
し、抽気１ｆ力Ｐが低下してｌｊｉ設定俯Ｐｏ以下にな
ると、比較検出器８は調節弁６を全開どＪる信号を出ノ
Ｊ する、。Since the control device 20 of the present invention is configured in this manner, the amount of steam flowing through the turbine 3 is large.
Sometimes the control valve 6 is closed and the feed water heating iVi 4 +
Bleed steam is sent from L, IJ Sita-3 and feed water is added! ;! ! 'J'ru. When the amount of steam flowing through the turbine 3 decreases and the extraction force P decreases to below the lji setting pressure Po, the comparison detector 8 outputs a signal to fully open the control valve 6.
変化率制限器９は入力信号に対し−（出力信′ｉ：３を
ある変化率以内で変えるので、出力（ｒｌｊ号は調節弁
０を全開とづる値から徐々に一定率で増加して行く、。The rate of change limiter 9 changes the input signal -(output signal 'i:3) within a certain rate of change, so the output (rlj) gradually increases at a constant rate from the value when the control valve 0 is fully open. ,.
それに伴って調節弁６も一定率で間覆る。調Ｂ１１弁６
が間すると、主蒸気ラインがら昌）！Ｉｉ！どｊ、圧の
〃１気が給水加熱器４に送られるが、この流量は調１１
ｉｊｊｒ６の開厄によって決まるので、主蒸気ラインが
らの給水加熱器４への加熱蒸気の流量の増加もほぼ一定
率で徐々に増加する。Accordingly, the control valve 6 also closes at a constant rate. Key B11 valve 6
After that, the main steam line is closed)! Ii! 1 air is sent to the feed water heater 4, but the flow rate is controlled by the regulator 11.
Since it is determined by the opening of ijjr6, the increase in the flow rate of heating steam from the main steam line to the feed water heater 4 also increases gradually at a substantially constant rate.
タービン３を流れる蒸気ｍが増加してくると、抽気圧力
［〕も高くなって来る。圧力Ｐが閉設定値Ｐｃよりし高
く、Ｐ＞Ｐｃとなると比較検出器８は調節弁６を全開と
する信号を出力Ｊるが、この信号は変化率制限器９によ
って一定率で弁を閉する信号に変えられる。従って調節
弁６は徐々に一定率で閉し、これに伴って主蒸気からの
加熱蒸気も徐々に減少し、給水加熱器４の加熱蒸気は抽
気蒸気に切替わる。As the steam m flowing through the turbine 3 increases, the extraction pressure [ ] also increases. When the pressure P is higher than the closing set value Pc and P>Pc, the comparison detector 8 outputs a signal to fully open the control valve 6, but this signal is controlled by the rate of change limiter 9 to close the valve at a constant rate. The signal can be changed to Therefore, the control valve 6 gradually closes at a constant rate, and accordingly, the heating steam from the main steam also gradually decreases, and the heating steam of the feed water heater 4 is switched to extraction steam.
このように制御装置が動作するので、給水加熱器４に流
入Ｊる主蒸気の流量の変化も変化率制限器９で定めた変
化率で変化する。このために変化率制限器９の変化率の
設定を主蒸気流量の変動に対して、タービン３の制御系
および原子炉の制御系が追従するように定めることによ
って、タービンの出力への外乱および原子炉系への影響
を少くすることができる。Since the control device operates in this manner, the flow rate of the main steam flowing into the feedwater heater 4 also changes at the rate of change determined by the rate of change limiter 9. For this purpose, by setting the rate of change of the rate of change limiter 9 so that the control system of the turbine 3 and the control system of the reactor follow fluctuations in the main steam flow rate, disturbances to the output of the turbine and The impact on the nuclear reactor system can be reduced.
本発明によれば、このように制御が行われるので原子炉
への給水の温度を要求された（ｉＧに自動的にすること
と同時に、原子炉系およびターじン出）ｊへの影響を少
くすることができる。According to the present invention, since the control is performed in this way, the temperature of the feed water to the reactor is automatically controlled (at the same time as the temperature of the water supplied to the reactor is automatically controlled, and at the same time, the influence on the reactor system and the turbine exhaust) is reduced. It can be done less.
本発明の他の実施例として、急速に給水ｆｆｕｆ ｌａ
か低下づ°ることに対する保護機能を持つものを第１１
図によって説明Ｊる。この実施例の制御装置２０は第３
図の構成に加えて、比較検出器８の間設定（直ＰＯより
も低いある値Ｐｔｌ・で変化率制限器９０入）ｊトラッ
キング機能（入力信号をそのまま出力する機能）を作動
させる信号を出ツノＪる圧力１１へ［・検知器１１を設
けでいる。As another embodiment of the invention, the rapid water supply ffuf la
Items that have a protective function against deterioration are classified as No. 11.
Explain with diagrams. The control device 20 of this embodiment is the third
In addition to the configuration shown in the figure, the comparison detector 8 is set (change rate limiter 90 is entered at a certain value Ptl lower than the direct PO) and a signal is output that activates the tracking function (a function that outputs the input signal as it is). A detector 11 is provided to detect the pressure 11 of the horn.
この制御ｌｌ装置２０は、°このように構成さ１′と（
いるので、タービン負荷い１ｉｌｌ：ｌＩのＪ、うなタ
ーヒン仙気圧が急速に低下するような揚台には、Ｊｊ、
す“唱・化率制限器９により一定率で調節弁６を聞どり
ろが、圧力が低下し圧力低下検知器１１でｌ：） ＜
１） ［ｒとなると、低下検知器１１からの信号により
今生率制限器９を入力Ｉ・ラッキングとし、調ＲＯ弁Ｇ
に全開信号を出し、調節弁６を＠速量とりる、。This control device 20 is configured as follows: 1' and (
Therefore, the turbine load is J of 1ill:lI, Jj,
Although the control valve 6 is controlled at a constant rate by the rate limiter 9, the pressure decreases and the pressure drop detector 11 detects l:)<
1) When [r] is reached, the current rate limiter 9 is set to input I/racking by the signal from the drop detector 11, and the regulating RO valve G is turned on.
Send a full open signal to , and set control valve 6 to @speed.
このように制御が動作するので、抽気ｊｆ力のＫｒ下が
ゆるやかな通常のブランｌ−運用の場合には、変化率制
限器９による一定率で調節弁６が開閉し、給水湿度を要
求範囲内とりる。さらにタービン負荷の降下が急で抽気
圧力の降下が早い時には調節フｒ ６を怠１７０ざじる
ので、給水加熱器４への加熱蒸気を２速に主蒸気に切替
えることができ、給水加熱器４の加熱蒸気を？ｉｆ［（
呆覆ることができる。Since the control operates in this way, in the case of normal bran l- operation where the Kr of the bleed air jf force is gradually lowered, the control valve 6 opens and closes at a constant rate by the rate of change limiter 9, keeping the feed water humidity within the required range. Take it inside. Furthermore, when the turbine load drops suddenly and the extraction pressure drops quickly, the adjustment lever 6 is ignored, so the heating steam to the feedwater heater 4 can be switched to the main steam in second gear, and the feedwater heater 4 heating steam? if[(
You can be stunned.
本発明によればこのように制御が行われるので、原子炉
およびターモレ出〕ｊへの影響を少くしかつ給水晶、ｉ
瓜を要求範囲内どすることができる。さらに急速な抽気
圧力の降下のような現象に対しては、調ｌｌ１ｊ弁６を
急開Ｊることによって加熱蒸気をすみやかに切行え、給
水加熱器４の加熱蒸気を確保できる。According to the present invention, control is performed in this manner, so that the influence on the reactor and the turmoil output]j is reduced, and the supply crystal, i
The melon can be kept within the required range. Furthermore, in response to a phenomenon such as a rapid drop in bleed pressure, the heating steam can be quickly cut off by rapidly opening the control valve 6, and the heating steam for the feed water heater 4 can be secured.
［発明の効果］
以上の説明で明らか′／、ｒように本発明によれば、原
子力発電プラントにおいて給水加熱器への加熱蒸気を抽
気蒸気から主蒸気へ徐々に切替えるよう構成したことに
より、タービン出力、原子炉への影響を少くし、原子炉
に入る給水温度を要求される範囲に保つ制すＩＩが実現
できる。。[Effects of the Invention] As is clear from the above explanation, according to the present invention, in a nuclear power plant, the heating steam to the feed water heater is gradually switched from extracted steam to main steam, so that the turbine It is possible to realize II, which reduces the impact on the output and reactor and maintains the temperature of the feed water entering the reactor within the required range. .
第１図は本発明の給水加熱器の加熱熱気制御（１０・１
゜置を適用する光電プラントを示ず（既略系統し１、ｉ
１２図は要求給水温度と蒸発量の１３’Ｊ係特１！１μ
ｍ、第；３図は本発明による給水加熱器のＩＪ１１熱蒸
気制’ｆｉｌｌ ｆＨｉｉＸの一実施例を示リブロック
系統図、第４図は水斤明の他の実施例による制御装置を
示リブ［−１ツク系統図である。
１・・・主蒸気 ２・・・蒸気加減ツ１゛３・・・蒸気
タービン ４・・・加熱器、ｌり１＋１４５・・・圧力
スイッチ ６・・・Ｒｕｌ Ｄｉｉ弁７・・・圧力検出
器 ８・・・比較検出ｚ）：９・・・変化率制限器 １
０・・・電／空変１φ１ｉｌ−ｉ１１・・・圧力低下検
知器
１２ａ、１２ｂ ・・・逆止弁
２０・・・制御装置
代理人方理−１則 近 憲Ｒｉ（ほか１名）第 １ 図
、逮発量
第 ３ 図Figure 1 shows the heating hot air control (10.1) of the feed water heater of the present invention.
The photoelectric plant to which the ゜ position is applied is not shown.
Figure 12 shows the 13'J relationship between the required water supply temperature and the amount of evaporation.
Fig. 3 shows an embodiment of the IJ11 thermal steam control 'fill fHiiX' of the feed water heater according to the present invention, and Fig. 4 shows a control device according to another embodiment of the water heater. [-1 Tsuk system diagram. 1...Main steam 2...Steam regulator 1゛3...Steam turbine 4...Heater, 1+145...Pressure switch 6...Rul Dii valve 7...Pressure detector 8... Comparison detection z): 9... Change rate limiter 1
0...Electrical/pneumatic change 1φ1il-i11...Pressure drop detector 12a, 12b...Check valve 20...Control device agent principle - 1 rule Ken Ri Chika (and 1 other person) 1st Figure 3: Number of arrests
Claims (2)
検出器と、この検出圧力により主蒸気から給水加熱器に
流Ｊ゛蒸気制御する調整弁に全開、全開する信号を支え
る比較器と、比較器からの全開、全開信号に対して調整
弁に送る信号を一定率とする変化制限器とを協えたこと
を特徴とする給水加熱器の加熱蒸気制御装置。(1) A pressure detector that detects the pressure of bleed steam entering the feed water heater, and a comparator that uses this detected pressure to send a signal to fully open and fully open the regulating valve that controls the flow of steam from the main steam to the feed water heater. A heating steam control device for a feed water heater, characterized in that it is equipped with a change limiter that sets a constant rate of a signal sent to a regulating valve in response to a fully open signal from a comparator and a fully open signal from a comparator.
る１幾能を加えたことを特徴とする特許請求の範囲第１
項記載の給水加熱器の加熱蒸気制御装置。(2) Claim 1 characterized in that one geometric function is added in which the rate of change limiter is input dragging due to pressure drop.
A heating steam control device for a feed water heater as described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58146554A JPS6038507A (en) | 1983-08-12 | 1983-08-12 | Controller for heating steam for feedwater heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58146554A JPS6038507A (en) | 1983-08-12 | 1983-08-12 | Controller for heating steam for feedwater heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6038507A true JPS6038507A (en) | 1985-02-28 |
Family
ID=15410287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58146554A Pending JPS6038507A (en) | 1983-08-12 | 1983-08-12 | Controller for heating steam for feedwater heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6038507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010016286A1 (en) * | 2008-08-08 | 2010-02-11 | 三浦工業株式会社 | Steam system |
-
1983
- 1983-08-12 JP JP58146554A patent/JPS6038507A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010016286A1 (en) * | 2008-08-08 | 2010-02-11 | 三浦工業株式会社 | Steam system |
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