SU676811A1 - Method of automatic regulation of steam temperature at the outlet of multistage steam superheater - Google Patents
Method of automatic regulation of steam temperature at the outlet of multistage steam superheaterInfo
- Publication number
- SU676811A1 SU676811A1 SU782579008A SU2579008A SU676811A1 SU 676811 A1 SU676811 A1 SU 676811A1 SU 782579008 A SU782579008 A SU 782579008A SU 2579008 A SU2579008 A SU 2579008A SU 676811 A1 SU676811 A1 SU 676811A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- temperature
- superheater
- steam
- outlet
- steam temperature
- Prior art date
Links
Description
щий сигнал на корректирующий регул тор 12, который преобразует его в изменение выходного сигнала, что нриводит к одинаковому изменению задани дл регул торов 13 и 14. Регул тор 13, воздейству на регулирующий орган 7, измен ет до нового задани температуру пара, измер емую термопарой 9. Регул тор 14, воздейству на регулирующий орган 6, измен ет до нового задани температуру нара, измер емую термопарой 10. В результате снижение темнературы пара пароохладителем 5 остаетс неизменным. Сигнал от термопары 11, преобразуемый дифференциатором 15 и поступающий на регул тор 14, стабилизирует его работу.A correction signal to the adjusting regulator 12, which converts it into a change in the output signal, which leads to the same change in the reference for regulators 13 and 14. The regulator 13, changing the regulator 7, changes the temperature measured by the thermocouple to the new reference 9. The regulator 14, acting on the regulator 6, changes the nara temperature measured by the thermocouple 10 to the new target. As a result, the decrease in the steam temperature by the desuperheater 5 remains unchanged. The signal from thermocouple 11, converted by the differentiator 15 and fed to the controller 14, stabilizes its operation.
Дл исключени неустойчивых режимов работы регул торов при по влении значительных отклонений температуры нара на выходе перегревател , которые не могут быть скомпенсированы одним пароохладителем 5, на корректирующий регул тор 12 подаетс по линии 16 сигнал, прекращающий изменение выходного сигнала корректирующего регул тора 12 нри достижении регулирующим органом 7 положений полного закрыти или полного открыти .In order to avoid unstable operating modes of the regulators, when there are significant deviations of the nara temperature at the output of the superheater, which cannot be compensated by one desuperheater 5, the correction regulator 12 is fed via line 16, which stops the output signal of the corrective regulator 12 when the regulator reaches 7 positions of full closing or full opening.
Так как поверхность нагрева перегревател за пароохладителем по ходу пара составл ет только часть общей поверхности и температура перед пароохладителем стабилизируетс авторегул тором, возможные отклонени температуры пара на выходе нерегревател не могут быть большими.Since the heating surface of the superheater behind the desuperheater along the steam is only part of the total surface and the temperature in front of the desuperheater is stabilized by the autoregulator, possible deviations of the steam temperature at the outlet of the unheater cannot be large.
Таким образом, в данном способе уменьшаетс снижение температуры пара. Это позвол ет повысить необходимую точность регулировани температуры пара на выходе из многоступенчатого пароперегревател .Thus, in this method the reduction in steam temperature is reduced. This makes it possible to increase the required accuracy of controlling the steam temperature at the outlet of the multistage superheater.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782579008A SU676811A1 (en) | 1978-02-14 | 1978-02-14 | Method of automatic regulation of steam temperature at the outlet of multistage steam superheater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782579008A SU676811A1 (en) | 1978-02-14 | 1978-02-14 | Method of automatic regulation of steam temperature at the outlet of multistage steam superheater |
Publications (1)
Publication Number | Publication Date |
---|---|
SU676811A1 true SU676811A1 (en) | 1979-07-30 |
Family
ID=20748593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782579008A SU676811A1 (en) | 1978-02-14 | 1978-02-14 | Method of automatic regulation of steam temperature at the outlet of multistage steam superheater |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU676811A1 (en) |
-
1978
- 1978-02-14 SU SU782579008A patent/SU676811A1/en active
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