JPS57212386A - Apparatus for controlling starting operation of feed water pump - Google Patents
Apparatus for controlling starting operation of feed water pumpInfo
- Publication number
- JPS57212386A JPS57212386A JP9746681A JP9746681A JPS57212386A JP S57212386 A JPS57212386 A JP S57212386A JP 9746681 A JP9746681 A JP 9746681A JP 9746681 A JP9746681 A JP 9746681A JP S57212386 A JPS57212386 A JP S57212386A
- Authority
- JP
- Japan
- Prior art keywords
- output
- water pump
- feed water
- speed
- parallel operation
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/26—Automatic feed-control systems
- F22D5/32—Automatic feed-control systems influencing the speed or delivery pressure of the feed pumps
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE:To enable to perform parallel operation of a power plant in a stable manner, by increasing the operation speed of a feed water pump automatically from its turning speed up to the idling speed meeting with the power generating output at the time, and bringing the pump automaticaly into parallel operation with other feed water pump. CONSTITUTION:In starting operation of a feed water pump, a parallel operation switch 28 is closed, so that the deviation between the output of a transmitter 30 for transmitting a signal relating to the flow rate of the feed water pump and that of a proportional integrator 31 is stored in an analogue memory 29, and the output of a deviation calculator 32 is kept at zero. Further, the output of a function generator 24 and that of a rotational speed transmitter 17 are applied to a deviation calculator 25. When the output of an integrator 15 is increased and becomes higher than the output of a propertioning means 20, variable-value control using the output of a control system B for the feed water pump as a datum value is switched to constant-value control using the output of the function generator 24 as a datum value. Further, when starting operation of the feed water pump is completed by increasing its speed to the idling speed, the switch 28 is opened and the system is shifted to parallel operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9746681A JPS57212386A (en) | 1981-06-25 | 1981-06-25 | Apparatus for controlling starting operation of feed water pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9746681A JPS57212386A (en) | 1981-06-25 | 1981-06-25 | Apparatus for controlling starting operation of feed water pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57212386A true JPS57212386A (en) | 1982-12-27 |
Family
ID=14193071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9746681A Pending JPS57212386A (en) | 1981-06-25 | 1981-06-25 | Apparatus for controlling starting operation of feed water pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57212386A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011085041A (en) * | 2009-10-14 | 2011-04-28 | Chugoku Electric Power Co Inc:The | Thermal power generation equipment and method of operating the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5325882A (en) * | 1976-08-20 | 1978-03-10 | Den Kunio | One actuation pull switch for multiilamp lighting equipment |
JPS53101702A (en) * | 1977-02-18 | 1978-09-05 | Yaskawa Electric Mfg Co Ltd | Control system for pump |
-
1981
- 1981-06-25 JP JP9746681A patent/JPS57212386A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5325882A (en) * | 1976-08-20 | 1978-03-10 | Den Kunio | One actuation pull switch for multiilamp lighting equipment |
JPS53101702A (en) * | 1977-02-18 | 1978-09-05 | Yaskawa Electric Mfg Co Ltd | Control system for pump |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011085041A (en) * | 2009-10-14 | 2011-04-28 | Chugoku Electric Power Co Inc:The | Thermal power generation equipment and method of operating the same |
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