JPS555436A - Reheated steam temperature controller - Google Patents
Reheated steam temperature controllerInfo
- Publication number
- JPS555436A JPS555436A JP7654178A JP7654178A JPS555436A JP S555436 A JPS555436 A JP S555436A JP 7654178 A JP7654178 A JP 7654178A JP 7654178 A JP7654178 A JP 7654178A JP S555436 A JPS555436 A JP S555436A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- steam
- reheater
- signals
- spray
- 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
Abstract
PURPOSE: To use a reheater spray control valve for controlling the ordinary temperature of steam reheated, by comparing deviation between set temperature based on the temperature of saturated steam computed from the quantity of main steam and the temperature of an outlet of a reheater with spray valve demand signals.
CONSTITUTION: The minimum temperature that does not reach the temperature of saturated steam is calculated from the output of a steam flow-rate transmission instrument 1 of an outlet of a reheater 19 of each load by means of a function computing element 4, the excessive charging preventive signals of a spray water are formed by computing deviation with the output of a steam temperature detector 3 of the outlet of the reheater 19, the observation of the temperature of steam reheated, by means of a proportional, integral computing element 5, and a spray valve 8 is controlled by selecting signals in low levels by means of a selector from said signals and the output signals of a proportional, integral computing element 10 for producing the demand signals of the spray valve 8 of the reheater. Thus, the oridinary temperature of steam reheated can be controlled by means of the spray valve 8 because the inflow of waterdrops to a burbine is obstructed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7654178A JPS555436A (en) | 1978-06-26 | 1978-06-26 | Reheated steam temperature controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7654178A JPS555436A (en) | 1978-06-26 | 1978-06-26 | Reheated steam temperature controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555436A true JPS555436A (en) | 1980-01-16 |
Family
ID=13608121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7654178A Pending JPS555436A (en) | 1978-06-26 | 1978-06-26 | Reheated steam temperature controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555436A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0486306A (en) * | 1990-07-31 | 1992-03-18 | Toshiba Corp | Combined cycle main steam temperature control device |
-
1978
- 1978-06-26 JP JP7654178A patent/JPS555436A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0486306A (en) * | 1990-07-31 | 1992-03-18 | Toshiba Corp | Combined cycle main steam temperature control device |
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