JPS6419205A - High pressure feed water heater pressure controller - Google Patents
High pressure feed water heater pressure controllerInfo
- Publication number
- JPS6419205A JPS6419205A JP17099387A JP17099387A JPS6419205A JP S6419205 A JPS6419205 A JP S6419205A JP 17099387 A JP17099387 A JP 17099387A JP 17099387 A JP17099387 A JP 17099387A JP S6419205 A JPS6419205 A JP S6419205A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- water heater
- feed water
- extraction
- 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
Landscapes
- Control Of Turbines (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
PURPOSE: To prevent the sudden change of pressure of a high-pressure feed water heater barrel even when an extraction pressure is changed suddenly during the in-service of the high-pressure feed water heater by a method wherein a high-pressure feed water heater barrel pressure is controlled based on the set value of a signal obtained by multiplying an extraction pressure signal before a first regulating valve in the rear stream of an extraction stop valve by a changing rate limit. CONSTITUTION: A high-pressure feed water heater pressure controller is provided with a high-pressure feed water heater barrel pressure controller 21, provided with a first regulating valve 15 in the rear stream of an extraction stop valve 14 and a pipeline 18, connecting the inlet port of a super-heater 2, including a steam stop valve 16 and a second regulating valve 17, to the rear stream of the valve 15 to control the valves 15, 17 through an extraction pressure detector 19 and a high-pressure feed water heater barrel pressure detector 20. The pressure of the high-pressure feed water heater barrel 12 is controlled based on the set value of a signal, obtained by multiplying an extraction pressure signal before the valve 15 by a changing rate limit whereby the valve is operated into the closing direction thereof when a load is increased suddenly and the extraction pressure is increased suddenly. On the contrary, the valve 17 is operated into the opening direction thereof when the load is lowered suddenly and the extraction pressure is reduced suddenly. In this case, when the extraction pressure before the valve 15 shows only a slow change in the degree that the pressure will not receive any changing rate limit, the valve 15 is fully opened as it is and the valve 17 is closed totally as it is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17099387A JPS6419205A (en) | 1987-07-10 | 1987-07-10 | High pressure feed water heater pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17099387A JPS6419205A (en) | 1987-07-10 | 1987-07-10 | High pressure feed water heater pressure controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6419205A true JPS6419205A (en) | 1989-01-23 |
Family
ID=15915127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17099387A Pending JPS6419205A (en) | 1987-07-10 | 1987-07-10 | High pressure feed water heater pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6419205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913296A (en) * | 2015-05-14 | 2015-09-16 | 广东红海湾发电有限公司 | High-low pressure heater emergency drain control method |
| US9157596B2 (en) | 2012-12-17 | 2015-10-13 | Koito Manufacturing Co. Ltd. | Vehicle lamp |
-
1987
- 1987-07-10 JP JP17099387A patent/JPS6419205A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9157596B2 (en) | 2012-12-17 | 2015-10-13 | Koito Manufacturing Co. Ltd. | Vehicle lamp |
| CN104913296A (en) * | 2015-05-14 | 2015-09-16 | 广东红海湾发电有限公司 | High-low pressure heater emergency drain control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1418177A (en) | Servopiston-operated valves | |
| JPS6419205A (en) | High pressure feed water heater pressure controller | |
| GB1155462A (en) | Method of and apparatus for Controlling the Operation of Gas Compression Apparatus | |
| JPS6456972A (en) | Displacement control valve | |
| GB1434688A (en) | Pressure control arrangement | |
| JPS5672250A (en) | Controller for exhaust gas recirculation in engine | |
| JPS5760416A (en) | Control device for gas burning output proportion | |
| JPS57191485A (en) | Pressure switch controlling type pump | |
| JPS53129788A (en) | Control method for controlling flow rate or pressure by operating two or more valves | |
| JPS5716207A (en) | Feed water turbine pump controller | |
| JPS57131890A (en) | Oil hydraulic controller | |
| ES8400580A1 (en) | Control systems for boilers. | |
| FR2310509A1 (en) | Controllable period sprinkler valve - has differential piston with regulator passage controlling time delay before closure | |
| JPS5620807A (en) | Amount of flow and pressure control system | |
| JPS5737162A (en) | Water feed control method | |
| JPS5513411A (en) | Control method for flow controller | |
| JPS5744778A (en) | Operation control method of multistage hydraulic machinery | |
| GB1222430A (en) | Flow control valve | |
| JPS57146046A (en) | Fuel pressure regulating device for fuel injection pump | |
| JPS5322931A (en) | Operation method of hydraulic machinery | |
| JPS57137774A (en) | Fluid control valve | |
| GB1488794A (en) | Control valve | |
| GB1511844A (en) | Gas pressure regulators | |
| JPS5510171A (en) | Hydraulic pressure controlling system for hydraulically operated apparatus | |
| JPS57146024A (en) | Supercharge pressure controller of engine with supercharger |