JPS5445401A - Thermal power plant protecting apparatus - Google Patents
Thermal power plant protecting apparatusInfo
- Publication number
- JPS5445401A JPS5445401A JP11165977A JP11165977A JPS5445401A JP S5445401 A JPS5445401 A JP S5445401A JP 11165977 A JP11165977 A JP 11165977A JP 11165977 A JP11165977 A JP 11165977A JP S5445401 A JPS5445401 A JP S5445401A
- Authority
- JP
- Japan
- Prior art keywords
- heater
- drain
- high pressure
- load
- valve
- 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)
Abstract
PURPOSE: To prevent water hammer in such a way that when the condition has come to the drive at the position of turbine no-load and under independent load in the station, drain is forcibly sent out to the side of the high pressure first heater.
CONSTITUTION: In concurrence of detecting drop of the load when it has dropped suddenly from high to low with forcibly changing over drain exhaust of a high pressure second heater 5 from a deaerator 1 to a high pressure first heater 4, a sequence circuit is automatically reset after a certain time, ordinary changeover operation is performed by pressures 22, 23. Said constitution controls a valve 16 at the time of FCB, a valve 17 is totally closed, the exhaust drain is flowed to the side of the low pressure heater. In the meantime, in this transient cycle, repetition of opening and closing the valves 16, 17 is arrested, to prevent water hammer which is engendered in a drain piping 31 on the following wake side of a water level regulating valve 17 to be exhausted on the side of the deaerator 1
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11165977A JPS5445401A (en) | 1977-09-19 | 1977-09-19 | Thermal power plant protecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11165977A JPS5445401A (en) | 1977-09-19 | 1977-09-19 | Thermal power plant protecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5445401A true JPS5445401A (en) | 1979-04-10 |
Family
ID=14566923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11165977A Pending JPS5445401A (en) | 1977-09-19 | 1977-09-19 | Thermal power plant protecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5445401A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6152504A (en) * | 1984-08-23 | 1986-03-15 | 株式会社日立製作所 | Method and device for interlocking bleed check valve |
| CN109520001A (en) * | 2018-12-12 | 2019-03-26 | 沧州华润热电有限公司 | A kind of heat supply network draining system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS508901A (en) * | 1973-06-04 | 1975-01-29 |
-
1977
- 1977-09-19 JP JP11165977A patent/JPS5445401A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS508901A (en) * | 1973-06-04 | 1975-01-29 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6152504A (en) * | 1984-08-23 | 1986-03-15 | 株式会社日立製作所 | Method and device for interlocking bleed check valve |
| JPH044482B2 (en) * | 1984-08-23 | 1992-01-28 | ||
| CN109520001A (en) * | 2018-12-12 | 2019-03-26 | 沧州华润热电有限公司 | A kind of heat supply network draining system |
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