JPH0337083B2 - - Google Patents
Info
- Publication number
- JPH0337083B2 JPH0337083B2 JP4691781A JP4691781A JPH0337083B2 JP H0337083 B2 JPH0337083 B2 JP H0337083B2 JP 4691781 A JP4691781 A JP 4691781A JP 4691781 A JP4691781 A JP 4691781A JP H0337083 B2 JPH0337083 B2 JP H0337083B2
- Authority
- JP
- Japan
- Prior art keywords
- water level
- deaerator
- level control
- differential pressure
- condensate
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 103
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Control Of Non-Electrical Variables (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Description
【発明の詳細な説明】
本発明は、発電プラントに使用される脱気器水
位制御装置に係り、特に、この脱気器水位制御装
置の脱気器水位調節弁のキヤビテイシヨンエロー
ジヨン、振動及び騒音の防止及び復水昇圧ポンプ
モータの動力損失防止装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deaerator water level control device used in a power generation plant, and particularly to a deaerator water level control device for controlling cavitation erosion and vibration of a deaerator water level control valve of the deaerator water level control device. and a noise prevention device and a power loss prevention device for a condensate boost pump motor.
従来、この種の脱気器への復水供給手段は、第
１図及び第２図に示されるように、タービン（図
示されず）で仕事を終了した蒸気を周知の復水器
１で熱交換して復水し、この復水器１の復水を復
水管２上に設けられた復水ポンプ３によつて脱塩
装置４へ圧送し、さらに、この脱塩装置４で脱塩
された復水をモータ５で駆動される復水昇圧ポン
プ６で上記復水管２に配設されたグランドスチー
ムコンデンサ７、流量測定器８、脱気器水位調節
弁９、各低圧給水加熱器１０ａ，１０ｂ，１０ｃ
を介して脱気器１１、この脱気器の貯水槽１２に
供給し、さらに、この貯水槽１２の水を給水管１
３に設置されたボイラ給水ブースタポンプ１４、
及びボイラ給水ポンプ１５を介して、タービンに
蒸気を供給するボイラーへ給水するようになつて
いる。 Conventionally, as shown in FIGS. 1 and 2, a means for supplying condensate to this type of deaerator is to heat steam that has finished its work in a turbine (not shown) in a well-known condenser 1. The condensate in the condenser 1 is sent under pressure to a desalination device 4 by a condensate pump 3 provided on a condensation pipe 2, and further desalted in this desalination device 4. The condensate is pumped by a condensate booster pump 6 driven by a motor 5 to a ground steam condenser 7 disposed in the condensate pipe 2, a flow rate measuring device 8, a deaerator water level control valve 9, each low pressure feed water heater 10a, 10b, 10c
The water in the water tank 12 is supplied to the deaerator 11 and the water tank 12 of this deaerator through the water supply pipe 1.
Boiler water supply booster pump 14 installed in 3,
Water is supplied to the boiler that supplies steam to the turbine via the boiler water pump 15.
一方、上記脱気器への復水給水手段に組込まれ
た従来の脱気器水位制御装置は、上記貯水槽１２
に附設された空気減圧弁１６ａを有する水位検出
器１６で上記貯水槽１２の水位を検出し、この水
位検出器１６の検出信号を空気管１６ｂを通して
空気減圧弁１７ａを有する水位調節計１７へ送信
し、この水位調節計１７で、予め、定められた設
定水位と検出信号による実際水位とを比較演算
し、しかも、この水位調節計１７によつて算出し
た水位変化量を空気減圧弁１８ａを有する演算器
１８で偏差信号に変換し、この偏差信号を前記脱
気器水位調節弁９に送信し、この脱気器水位調節
弁９を上記偏差信号に基づいて開閉制御し得るよ
うになつている。 On the other hand, the conventional deaerator water level control device incorporated in the condensate water supply means to the deaerator is configured to control the water level in the water storage tank 12.
The water level in the water tank 12 is detected by a water level detector 16 having an air pressure reducing valve 16a attached thereto, and the detection signal of this water level detector 16 is transmitted through an air pipe 16b to a water level controller 17 having an air pressure reducing valve 17a. The water level controller 17 compares and calculates a predetermined set water level with the actual water level based on the detection signal, and the amount of water level change calculated by the water level controller 17 is calculated using an air pressure reducing valve 18a. The calculation unit 18 converts it into a deviation signal, and sends this deviation signal to the deaerator water level control valve 9, so that the deaerator water level control valve 9 can be controlled to open or close based on the deviation signal. .
又一方、従来の脱気水位制御装置では、上記脱
気器水位調節弁９から上記脱気器１１の貯水槽１
２に至る復水管２の流路長が長い関係上、上記脱
気器水位調節弁９の開閉動作のタイムラグ（遅延
動作）を解消するために、前記流量測定器８で流
量Ｑを測定し、この測定信号を空気減圧弁１９ａ
を有する流量検出器１９で流量検出信号に変え
て、これを空気減圧弁２０ａを有する演算器２０
及び給水流量を受信する演算器２１に送信し、こ
こで補正信号（調節信号）を算出し、この補正信
号を上記演算器１８に入力して正確な偏差信号を
算出し、これにより、上記脱気器水位調節弁９を
遅延動作のないように開閉制御するようになつて
いる。 On the other hand, in the conventional deaerator water level control device, the deaerator water level control valve 9 is connected to the water tank 1 of the deaerator 11.
Due to the long flow path length of the condensate pipe 2 leading to the deaerator water level control valve 9, in order to eliminate the time lag (delayed operation) of the opening/closing operation of the deaerator water level control valve 9, the flow rate Q is measured with the flow rate measuring device 8. This measurement signal is sent to the air pressure reducing valve 19a.
A flow rate detector 19 having a flow rate sensor 19 converts the detected signal into a flow rate detection signal, and this signal is sent to a computing unit 20 having an air pressure reducing valve 20a.
A correction signal (adjustment signal) is calculated here, and this correction signal is input to the above-mentioned calculation unit 18 to calculate an accurate deviation signal. The opening and closing of the air water level control valve 9 is controlled so that there is no delay in operation.
他方、前記復水管２に設置された復水昇圧ポン
プ６は、これに直結したモータ５によつて、常に
一定回転数で駆動されているから、第２図のグラ
フに示されるようになる。即ち、第２図のグラフ
は、上記復水昇圧ポンプ６のポンプ揚程曲線（Ｑ
−Ｈ曲線）とシステムヘツド曲線（復水器１
から脱気器１１までの抵抗曲線）を示したもので
ある。この第２図のグラフからも明らかなよう
に、上記ポンプ揚程曲線のポンプ揚程Ｈから復
水管２の管路内の抵抗値Ｒを引いたものが弁差圧
△ｐであり、これが上記脱気器水位調節弁９の負
荷となる。即ち、上記ポンプ揚程曲線に対して
上記弁差圧△ｐが大きくなると、システムヘツド
曲線の流量Ｑが少なくなり、この結果、上記脱
気器水位調節弁９が騒音や振動を発生したり、キ
ヤビテイシヨンエロージヨンを発生し、これに起
因して、弁損傷を生じるばかりでなく、上記復水
昇圧ポンプ６が、常に一定の回転数で駆動してい
る関係上、上記復水昇圧ポンプ６の流量Ｑが少な
いときは、これに直結しているモータ５の動損失
も増大する。 On the other hand, since the condensate boost pump 6 installed in the condensate pipe 2 is always driven at a constant rotation speed by the motor 5 directly connected thereto, the pump 6 is as shown in the graph of FIG. 2. That is, the graph in FIG. 2 shows the pump head curve (Q
-H curve) and system head curve (condenser 1
The resistance curve from 1 to 11 is shown. As is clear from the graph in FIG. 2, the value obtained by subtracting the resistance value R in the condensate pipe 2 from the pump head H in the pump head curve is the valve differential pressure △p, which is the deaeration pressure described above. This becomes a load on the water level control valve 9. That is, when the valve differential pressure Δp increases with respect to the pump head curve, the flow rate Q of the system head curve decreases, and as a result, the deaerator water level control valve 9 generates noise and vibration, and the capacitor Not only does this cause bitation erosion, which causes valve damage, but also because the condensate boost pump 6 is always driven at a constant rotation speed, the condensate boost pump 6 is When the flow rate Q is small, the dynamic loss of the motor 5 directly connected thereto also increases.
即ち、従来の脱気器水位制御装置では、復水昇
圧ポンプ６に直結したモータ５が、常に一定の回
転数で駆動しているため、流量Ｑが少なくても、
モータ５の消費電力は一定であり、しかも、上記
復水器１から上記脱気器１１に至る復水管２内の
弁差圧△ｐが脱気器水位調整弁９の負荷となり、
上記流量Ｑが低減するにつれて、弁差圧△ｐが増
大して、上記脱気器水位調整弁９に騒音や振動及
びキヤビテイシヨンエロージヨンを発生して、各
種の弁装置や機器に亀裂や損傷を与えるおそれが
ある。 That is, in the conventional deaerator water level control device, the motor 5 directly connected to the condensate boost pump 6 is always driven at a constant rotation speed, so even if the flow rate Q is small,
The power consumption of the motor 5 is constant, and the valve differential pressure Δp in the condensate pipe 2 from the condenser 1 to the deaerator 11 becomes a load on the deaerator water level adjustment valve 9.
As the flow rate Q decreases, the valve differential pressure Δp increases, causing noise, vibration, and cavitation erosion in the deaerator water level regulating valve 9, causing cracks and cracks in various valve devices and equipment. There is a risk of damage.
本発明は、上述した難点を解消するために、流
量測定器及び水位検出器で検出された両信号を回
転数制御器を介してモータと復水昇圧ポンプとの
間に設置された流体継手の回転数を制御して、上
記モータの動力損失を解消して動力の省エネルギ
ー化を図ると共に、脱気器水位調節弁を差圧検出
器及び差圧調節器によつて開閉制御して、騒音や
振動及びキヤビテイシヨンエロージヨンによる損
傷を防止することを目的とする脱気器水位制御装
置を提供するものである。 In order to solve the above-mentioned difficulties, the present invention transmits both signals detected by a flow meter and a water level detector to a fluid coupling installed between a motor and a condensate boost pump via a rotation speed controller. The rotation speed is controlled to eliminate the power loss of the motor and save energy, and the deaerator water level control valve is controlled to open and close using a differential pressure detector and a differential pressure regulator to reduce noise and reduce power consumption. A deaerator water level control device is provided for the purpose of preventing damage due to vibration and cavitation erosion.
以下、本発明を図示の一実施例について説明す
る。なお、本発明は、上述した具体例の構成と同
じものには同じ符号を附して説明する。 Hereinafter, the present invention will be described with reference to an illustrated embodiment. Note that the present invention will be described with the same reference numerals attached to the same components as those in the specific example described above.
第３図及び第４図において、符号１はタービン
（図示されず）で仕事を了えた蒸気を熱交換して
復水する復水器であつて、この復水器１には復水
管２が接続されており、この復水管２の管路には
復水ポンプ４、復水昇圧ポンプ６、グランド・ス
チームコンデンサ７、流量測定器８、脱気器水位
調節弁９、各低圧給水加熱器１０ａ，１０ｂ，１
０ｃ、脱気器１１及び脱気器の貯水槽１２が順に
配設されている。又、上記復水昇圧ポンプ６には
モータ５が流体継手２２を介して間接的に接続さ
れており、この流体継手２２は、後述する回転数
制御器２３及び演算器２４による出力信号によつ
て回転数を加減し、上記モータ５の回転数を制御
し得るようになつている。 In FIGS. 3 and 4, reference numeral 1 denotes a condenser that condenses the steam that has completed work in a turbine (not shown) by heat exchange. The condensate pipe 2 is connected to a condensate pump 4, a condensate boost pump 6, a grand steam condenser 7, a flow meter 8, a deaerator water level control valve 9, and each low pressure feed water heater 10a. ,10b,1
0c, a deaerator 11, and a deaerator water tank 12 are arranged in this order. Further, the motor 5 is indirectly connected to the condensate boost pump 6 via a fluid coupling 22, and the fluid coupling 22 is controlled by output signals from a rotation speed controller 23 and a computing unit 24, which will be described later. The rotation speed of the motor 5 can be controlled by adjusting the rotation speed.
一方、上記貯水槽１２にはボイラーに接続する
給水管１３が設けられており、この給水管１３に
はボイラ給水ブースタポンプ１４及びボイラ給水
ポンプ１５が設置されている。又、上記貯水槽１
２には空気減圧弁１６ａを有する水位検出器１６
が設けられており、上記貯水槽１２の水位はこの
水位検出器１６によつて検出し、この検出信号は
空気管１６ｂを通して空気減圧弁１７ａを有する
水位調節計１７へ送信し得るようになつている。
さらに、上記水位調節計１７は、予め、定められ
た設定水位と上記水位検出器１６からの検出信号
による実際水位とを比較演算すると共に、この水
位調節計１７によつて算出した水位変化量を空気
減圧弁１８ａを有する演算器１８が偏差信号に変
換し、さらに、この偏差信号は、回転数制御器２
３及び演算器２４を介して、上記流体接手２２へ
入力し得るようになつている。即ち、上記偏差信
号は、回転数制御器２３によつて回転増減信号に
変換すると共に、これを演算器２４で補正修正
し、この回転数増減信号が上記流体接手２２の制
御部（図示されず）に入力して、流体接手２２の
動力伝達を制御し、これによつてモータ５の回転
を増減し、復水昇圧ポンプ６の回転数を増減する
ようになつている。つまり、前記貯水槽１２の水
位が水位調節計１７の設定水位よりも低い時は、
モータ５の回転数は増加し、貯水槽１２の水位が
水位調節計１７の設定水位よりも高い時は、モー
タ５の回転数は低減するようになつている。 On the other hand, the water storage tank 12 is provided with a water supply pipe 13 connected to the boiler, and a boiler water supply booster pump 14 and a boiler water supply pump 15 are installed in this water supply pipe 13. Also, the above water tank 1
2 includes a water level detector 16 having an air pressure reducing valve 16a;
The water level in the water tank 12 is detected by the water level detector 16, and this detection signal can be transmitted through the air pipe 16b to the water level controller 17 having an air pressure reducing valve 17a. There is.
Further, the water level controller 17 compares and calculates a predetermined set water level with the actual water level based on the detection signal from the water level detector 16, and calculates the amount of water level change calculated by the water level controller 17. A computing unit 18 having an air pressure reducing valve 18a converts it into a deviation signal, and furthermore, this deviation signal is sent to a rotation speed controller 2.
3 and arithmetic unit 24, it can be input to the fluid coupling 22. That is, the deviation signal is converted into a rotation increase/decrease signal by the rotation speed controller 23, corrected and corrected by the arithmetic unit 24, and this rotation speed increase/decrease signal is transmitted to the control section (not shown) of the fluid coupling 22. ) to control the power transmission of the fluid coupling 22, thereby increasing or decreasing the rotation of the motor 5 and increasing or decreasing the rotation speed of the condensate boost pump 6. That is, when the water level of the water tank 12 is lower than the set water level of the water level controller 17,
The rotation speed of the motor 5 increases, and when the water level in the water tank 12 is higher than the set water level of the water level controller 17, the rotation speed of the motor 5 decreases.
なお、前記流量測定器８は、復水昇圧ポンプ６
の遅延動作を解消するために、復水管２の流量Ｑ
を測定し、この測定信号は空気減圧弁１９ａを有
する流量検出器１９によつて流量検出信号に変換
し、さらに、これを空気減圧弁２５ａを有する開
閉演算器２５及び補正修正用の演算器２０を介し
て上記演算器１８に入力して正確な偏差信号を算
出し得るようになつている。 Note that the flow rate measuring device 8 is a condensate boosting pump 6.
In order to eliminate the delayed operation, the flow rate Q of condensate pipe 2 is
This measurement signal is converted into a flow rate detection signal by a flow rate detector 19 having an air pressure reducing valve 19a, and is further converted into a flow rate detection signal by an opening/closing calculator 25 having an air pressure reducing valve 25a and a correction correction calculator 20. The error signal is inputted to the arithmetic unit 18 via the above so that an accurate deviation signal can be calculated.
他方、前記脱気器水位調節弁９の上・下流側に
は空気減圧弁２６ａを有する差圧検出器２６が跨
つて設けられており、この差圧検出器２６には上
記脱気器水位調節弁９を開閉制御する空気減圧弁
２７ａを有する差圧調節計２７が設けられてい
る。 On the other hand, a differential pressure detector 26 having an air pressure reducing valve 26a is provided straddling the upstream and downstream sides of the deaerator water level control valve 9, and this differential pressure detector 26 A differential pressure regulator 27 having an air pressure reducing valve 27a for controlling the opening and closing of the valve 9 is provided.
従つて、上記差圧検出器２６は上記脱気器水位
調節弁９の弁差△ｐを検出し、この検出信号を上
記差圧調節計２７へ発信する。すると、この差圧
調節計２７は上記脱気器水位調節弁９を開閉制御
する。即ち、この脱気器水位調節弁９の弁差圧△
ｐが、差圧調節弁９の設定差圧より小さい時は、
閉弁動作を行うようになり、又、上記弁差圧△ｐ
が設定差圧よりも大きい時は、開弁動作を行うよ
うになつている。 Therefore, the differential pressure detector 26 detects the valve difference Δp of the deaerator water level control valve 9 and transmits this detection signal to the differential pressure regulator 27. Then, the differential pressure regulator 27 controls the opening and closing of the deaerator water level control valve 9. That is, the valve differential pressure of this deaerator water level control valve 9
When p is smaller than the set differential pressure of the differential pressure regulating valve 9,
The valve starts to close, and the above-mentioned valve differential pressure △p
When is greater than the set differential pressure, the valve opens.
次に、上述した本発明による脱気器水位制御装
置を第４図のグラフについて説明する。即ち、第
４図のグラフは、本発明による上記復水昇圧ポン
プ６のポンプ揚程曲線（Ｑ−Ｈ曲線）とシステ
ムヘツド曲線（復水器１から脱気器１１までの抵
抗曲線）を示したものであり、特に、復水昇圧
ポンプ６を駆動するモータ５の回転数N1.N2.N3.
…N7は、流量Ｑと揚程Ｈとの関係からも明かな
ように、流量Ｑが低減するに追随して徐々に低減
するようになつており、これによつて上記ポンプ
揚程曲線はシステムヘツド曲線と略比例した
曲線を描くので、脱気器水位調節弁９の弁差圧△
ｐは略一定の状態となる。 Next, the deaerator water level control device according to the present invention described above will be explained with reference to the graph of FIG. 4. That is, the graph in FIG. 4 shows the pump lift curve (QH curve) and the system head curve (resistance curve from the condenser 1 to the deaerator 11) of the condensate boost pump 6 according to the present invention. In particular, the rotational speed of the motor 5 that drives the condensate boost pump 6 is N 1 .N 2 .N 3 .
... N7 gradually decreases as the flow rate Q decreases, as is clear from the relationship between the flow rate Q and the head H. As a result, the above pump head curve changes to the system head. Since the curve is approximately proportional to the curve, the valve differential pressure of the deaerator water level control valve 9 is △
p remains approximately constant.
換言すると、ポンプ揚程H0と復水器２の管路
内の抵抗値Ｒとの関係は、
△ｐH0−Ｒ
となり、弁差圧△ｐは、従来のものに比較して大
幅に改善されるため、脱気器水位調節弁９におけ
る弁差圧△ｐは、常に一定となり、騒音や振動及
びキヤビテイシヨンエロージヨンの発生は解消す
ると共に、上記モータ５の動力損失を防止できる
から消費電力を大幅に節約できる。 In other words, the relationship between the pump head H 0 and the resistance value R in the condenser 2 pipeline is △pH 0 −R, and the valve differential pressure △p is significantly improved compared to the conventional one. Therefore, the valve differential pressure △p at the deaerator water level control valve 9 is always constant, eliminating noise, vibration, and cavitation erosion, and preventing power loss in the motor 5, thereby reducing power consumption. can save you a lot of money.
以上述べたように発明によれば、復水器１の脱
気器１１の貯水槽１２を復水管２を通して接続
し、この復水管１２にモータ５を流体接手２２を
介して連結した復水ポンプ６、流量測定器８、及
び脱気器水位調節弁９を設け、上記貯水槽１２に
附設された水位検出器１６に水位調節計１７を接
続し、この水位調節計１７に上記流量測定器８に
よる調整信号を受信する各演算器２５，２０，１
８，２３を介して上記流体接手２２を制御する回
転数制御器２３を設け、上記脱気器水位調節弁９
の上・下流側に跨つて差圧検出器２６を設け、こ
の差圧検出器２６に脱気器水位調節弁９を開閉制
御する差圧調節計２７を設けてあるので、弁差圧
△ｐを常に一定に保持し得るようになるから、振
動や騒音及びキヤビテイシヨンエロージヨンによ
る損傷を防止できるばかりでなく、モータ５の動
力損失を解消して動力の省エネルギー化を図るこ
とができる。 As described above, according to the invention, the water storage tank 12 of the deaerator 11 of the condenser 1 is connected through the condensate pipe 2, and the motor 5 is connected to the condensate pipe 12 via the fluid coupling 22. 6. A flow rate measuring device 8 and a deaerator water level control valve 9 are provided, a water level controller 17 is connected to the water level detector 16 attached to the water storage tank 12, and the flow rate measuring device 8 is connected to the water level controller 17. Each computing unit 25, 20, 1 receives an adjustment signal by
A rotation speed controller 23 is provided to control the fluid coupling 22 via the deaerator water level control valve 9.
A differential pressure detector 26 is provided across the upstream and downstream sides, and a differential pressure regulator 27 for controlling the opening and closing of the deaerator water level control valve 9 is provided on this differential pressure detector 26, so that the valve differential pressure △p can be maintained constant at all times, which not only prevents damage caused by vibration, noise, and cavitation erosion, but also eliminates power loss in the motor 5 and saves energy.
第１図は従来の脱気器水位制御装置を示す系統
図、第２図は従来の脱気器水位制御装置の揚程と
流量との関係を示すグラフ、第３図は本発明によ
る脱気器水位制御装置を示す系統図、第４図は本
発明による脱気器水位制御装置の揚程と流量との
関係を示すグラフである。
１……復水器、２……復水管、５……モータ、
６……復水昇圧ポンプ、８……流量測定器、９…
…脱気器水位調節弁、１１……脱気器、１２……
貯水槽、１６……水位検出器、１７……水位調節
計、２２……流体接手、２３……回転数制御器、
２４……演算器、２６……差圧検出器、２７……
差圧調節計。
Fig. 1 is a system diagram showing a conventional deaerator water level control device, Fig. 2 is a graph showing the relationship between head and flow rate of the conventional deaerator water level control device, and Fig. 3 is a deaerator according to the present invention. FIG. 4, a system diagram showing the water level control device, is a graph showing the relationship between the head and flow rate of the deaerator water level control device according to the present invention. 1... Condenser, 2... Condensate pipe, 5... Motor,
6... Condensate boost pump, 8... Flow rate measuring device, 9...
...Deaerator water level control valve, 11...Deaerator, 12...
Water tank, 16... Water level detector, 17... Water level controller, 22... Fluid coupling, 23... Rotation speed controller,
24... Arithmetic unit, 26... Differential pressure detector, 27...
Differential pressure controller.
Claims (1)
続し、この復水管にモータを流体接手を介して連
結した復水昇圧ポンプ、流量測定器及び脱気器水
位調節弁を設け、上記貯水槽に附設された水位検
出器に水位調節計を接続し、この水位調節計に上
記流量測定器による調整信号を受信する各演算器
を介して上記流体接手を制御する回転数制御器を
設け、上記脱気器水位調節弁の上・下流側に跨つ
て差圧検出器を設け、この差圧検出器に脱気器水
位調節弁を開閉制御する差圧調節計を設けたこと
を特徴とする脱気器水位制御装置。1 Connect the water tank of the deaerator to the condenser through a condensate pipe, and install a condensate boost pump with a motor connected to the condensate pipe via a fluid coupling, a flow rate measuring device, and a deaerator water level control valve, and perform the above steps. A water level controller is connected to a water level detector attached to the water tank, and the water level controller is provided with a rotation speed controller that controls the fluid coupling via each computing unit that receives an adjustment signal from the flow rate measuring device. , a differential pressure detector is provided across the upper and downstream sides of the deaerator water level control valve, and a differential pressure controller is provided in the differential pressure detector to control opening and closing of the deaerator water level control valve. Deaerator water level control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4691781A JPS57161406A (en) | 1981-03-30 | 1981-03-30 | Water level controller for deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4691781A JPS57161406A (en) | 1981-03-30 | 1981-03-30 | Water level controller for deaerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57161406A JPS57161406A (en) | 1982-10-05 |
| JPH0337083B2 true JPH0337083B2 (en) | 1991-06-04 |
Family
ID=12760684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4691781A Granted JPS57161406A (en) | 1981-03-30 | 1981-03-30 | Water level controller for deaerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57161406A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60108605A (en) * | 1983-11-18 | 1985-06-14 | 株式会社日立製作所 | Controller for water level of deaerator |
-
1981
- 1981-03-30 JP JP4691781A patent/JPS57161406A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57161406A (en) | 1982-10-05 |
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