SU366266A1 - METHOD FOR AUTOMATIC REGULATION OF TURBINE WITH STEAM OUTPUT - Google Patents
METHOD FOR AUTOMATIC REGULATION OF TURBINE WITH STEAM OUTPUTInfo
- Publication number
- SU366266A1 SU366266A1 SU1624796A SU1624796A SU366266A1 SU 366266 A1 SU366266 A1 SU 366266A1 SU 1624796 A SU1624796 A SU 1624796A SU 1624796 A SU1624796 A SU 1624796A SU 366266 A1 SU366266 A1 SU 366266A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- turbine
- pressure
- steam output
- automatic regulation
- selection
- Prior art date
Links
Landscapes
- Control Of Turbines (AREA)
Description
1one
Изобретение касаетс средств автоматизации турбин с отбором пара.The invention relates to automation of turbines with steam extraction.
Известны способы автоматического регулировани турбин с отбором пара изменением расходов пара в части высокого и низкого давлени по сигналам регул торов скорости вращени и давлени в отборе. При этом уставка регул тора давлени в отборе не зависит от величины расхода пара в часть высокого давлени .Methods are known for automatically regulating turbines with steam extraction by varying the steam flow rates at high and low pressure parts according to the signals of the rotational speed and pressure controllers in the selection. In this case, the setpoint of the pressure regulator in the selection does not depend on the magnitude of the steam flow to the high pressure part.
По услови м прочности последней ступени части высокого давлени можно при уменьшении этого расхода снижать давление в отборе .Given the strength conditions of the last stage of the high pressure part, it is possible to reduce the pressure in the withdrawal while reducing this flow.
Цель изобретени - расширить диапазон регулировани и повысить экономичность.The purpose of the invention is to expand the range of regulation and increase efficiency.
Дл этого уменьшают уставку регул тора давлени в отборе по сигналу регул тора скорости вращени на уменьшение расхода пара в часть высокого давлени .For this, the setpoint of the pressure regulator in the selection is reduced by the signal of the rotational speed regulator by reducing the steam flow to the high pressure part.
На фиг. 1 приведена схема, реализующа предложенный способ; на фиг. 2 - диаграмма режимов работы.FIG. 1 shows a scheme implementing the proposed method; in fig. 2 - diagram of modes of operation.
Часть / высокого давлени и часть 2 низкого давлени турбины оборудованы регулирующими клапанами 3 и 4 с сервомоторами 5 н 6, управл емыми сигналами регул тора 7 скорости вращени и регул тора 8 давлени пара в отборе через промежуточные усплптели 9 и 10. Корректирующа св зь П обеспечивает одновременно с изменением расхода пара через часть / высокого давлени изменение по сигналу регул тора 7 скорости вращени и изменение уставки регул тора 8 давлени в отборе.The high pressure part / part and the low pressure part 2 of the turbine are equipped with control valves 3 and 4 with 5 n 6 servomotors, controlled by the signals of the rotation speed controller 7 and the steam pressure regulator 8 in the selection through intermediate ramps 9 and 10. Correction link P provides simultaneously with the change in the steam flow rate through a part / high pressure, a change in the rotation speed of the regulator 7 and a change in the setpoint of the pressure regulator 8 in the selection.
Диаграмма режимов (в координатах: Р - давление в отборе, G - расход пара через часть высокого давлени ) характеризуетс The mode diagram (in coordinates: P is the pressure in the selection, G is the steam flow through a part of the high pressure) is characterized by
трапецией АВСЕ (вместо пр моугольника ABCD по известному способу).trapezoid ABCE (instead of rectangle ABCD by a known method).
В результате расшир етс диапазон регулировани давлени в отборе при сохранении прочности последней ступени части высокогоAs a result, the range of pressure control in the selection is expanded while maintaining the strength of the last stage of the high
давлени турбины.turbine pressures.
Предмет изобретени Subject invention
Способ автоматического регулировани турбины с отбором пара изменением расходов пара в части высокого и низкого давлени по сигналам регул торов скорости вращени и давлени в отборе, отличающийс тем, что, с целью расширени диапазона регулированн и повышени экономичности, уменьшают уставку регул тора давлени в отборе по сигналу регул тора скорости вращени на уменьшение расхода пара в часть высокого давлени .A method of automatic control of a turbine with steam extraction by varying the steam flow rates at high and low pressure according to the signals of the rotational speed and pressure regulators in the selection, characterized in that, in order to expand the range and to increase efficiency, the pressure regulator setpoint is reduced in rotation speed regulator to reduce steam flow to the high pressure portion.
фиг. 1FIG. one
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1624796A SU366266A1 (en) | 1971-02-08 | 1971-02-08 | METHOD FOR AUTOMATIC REGULATION OF TURBINE WITH STEAM OUTPUT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1624796A SU366266A1 (en) | 1971-02-08 | 1971-02-08 | METHOD FOR AUTOMATIC REGULATION OF TURBINE WITH STEAM OUTPUT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU366266A1 true SU366266A1 (en) | 1973-01-16 |
Family
ID=20466666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1624796A SU366266A1 (en) | 1971-02-08 | 1971-02-08 | METHOD FOR AUTOMATIC REGULATION OF TURBINE WITH STEAM OUTPUT |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU366266A1 (en) |
-
1971
- 1971-02-08 SU SU1624796A patent/SU366266A1/en active
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