SU580336A1 - Method of shutdown cooling of power unit - Google Patents
Method of shutdown cooling of power unitInfo
- Publication number
- SU580336A1 SU580336A1 SU7301953050A SU1953050A SU580336A1 SU 580336 A1 SU580336 A1 SU 580336A1 SU 7301953050 A SU7301953050 A SU 7301953050A SU 1953050 A SU1953050 A SU 1953050A SU 580336 A1 SU580336 A1 SU 580336A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- valve
- power unit
- turbine
- shutdown cooling
- steam
- Prior art date
Links
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Description
Дл повышени экономичности и надежности по предлагаемому способу в турбину, в направлении обратном рабочему, подают пар, выработанный в котле после отключени в последнем подачи топлива.In order to increase the efficiency and reliability of the proposed method, steam generated in the boiler is supplied to the turbine, in the opposite direction to the worker, after shutting down in the last fuel supply.
На чертеже схематически изображен вариант реализации описываемого способа.The drawing shows schematically an embodiment of the described method.
Котел 1 посредством паропровода 2, па котором установлена задвижка 3, св зан с частью 4 высокого давлени турбины, оснащенной регулируюн1ими клапанами 5, перед которыми размещен дренаж 6. Часть 4 высокого давлени турбины, на выходе которой установлена задвижка 7, байпасируетс пускосбросным устройством 8, св зывающим паропровод 2 с вторичным пароперегревателем 9. Части 10 и 11 среднего и низкого давлени турбины, соединенные с генератором 12, байпасируютс пуско-сбросным устройством 13. На входе в часть 10 среднего давлени установлен клапан 14.Boiler 1 is connected to a high pressure part 4 of a turbine equipped with control valves 5, in front of which drainage 6 is located. The steam supply part 4 of the high pressure turbine, at the outlet of which a valve 7 is installed, is bypassed by the start discharge device 8, connecting the steam line 2 to the secondary superheater 9. Parts 10 and 11 of the medium and low pressure turbines connected to the generator 12 are bypassed by a starting-discharge device 13. A valve 14 is installed at the inlet to the part 10 of the middle pressure .
В схеме энергоблока могут быть предусмотрены также следующие дополнительные элементы: трубопровод 15 с регулирующим клапаном 16, св зывающий выхлоп части 4 высокого давлени с выхлопом части 10 среднего давлени ; задвижка 17 на трубопроводе, соедин ющем части 10 и 11 среднего и низкого давлени турбины; трубопровод 18 с задвижкой 19, один конец которого подключен между клапаном 14 и частью 10 среднего давлени турбины, а другой - между пускосбросным устройством 13 и конденсатором 20.The following additional elements may also be provided in the power unit design: pipeline 15 with a control valve 16 connecting the exhaust of the high pressure part 4 to the exhaust of the medium pressure part 10; a valve 17 on a pipeline connecting parts 10 and 11 of the medium and low pressure of the turbine; a pipeline 18 with a valve 19, one end of which is connected between the valve 14 and the medium pressure part 10 of the turbine, and the other end between the release switch 13 and the condenser 20.
Останов энергоблока с расхолаживанием производ т следующим образом.The shutdown of the power unit with cooling down is performed as follows.
После отключени генератора 12 прекращают подачу топлива в котел 1, закрывают задвижку 3 и регулируюпще кла-паны 5. После начала вращени ротора турбины валоповоротныМ устройством, пар, выработанный аккумулированным в котле 1 теплом, подают в часть 4 высокого давлени турбины в направлении, обратном рабочему. Дл открывают задвижку 7, регулирующие клапаны 5, дренаж 6 и пуско-сбросное устройство 8. При необходимости расхолаживани частей 10 и 11 среднего и низкого давлени приоткрывают клапан 14 (В случае размещени частей высокого и среднего давлени в одном корпусе охлаждение последней может быть произведено паром, протекающим через неплотности разделительной диафрагмы .After the generator 12 is turned off, the fuel supply to the boiler 1 is stopped, the valve 3 is closed and the valves 5 are adjusted. After the rotation of the rotor of the turbine is started using the shaft-turning device, the steam produced by the heat accumulated in the boiler 1 is fed to the high pressure part 4 of the turbine . The valve 7, the control valves 5, the drain 6 and the start-up and discharge device 8 are opened to open. If it is necessary to cool the parts 10 and 11 of the medium and low pressure, the valve 14 is opened (If the parts of the high and middle pressure are placed in one case, the latter can be cooled with steam flowing through the leakage of the separating diaphragm.
Дл предотвращени накоплени конденсата во вторичном пароперегревателе 9 его периодически продувают открытием дренажей или пуско-сбросного устройства 13).In order to prevent the accumulation of condensate in the secondary superheater 9, it is periodically purged by opening drains or a start-up and drain device 13).
По мере остывани котла 1 и паропроводов 2 температура пара, подаваемого в турбину, будет снижатьс . Скорость охлаждени различных элементов блока регулируют изменением расхода через пуско-сбросное устройство 8.As the boiler 1 and steam lines 2 cool down, the temperature of the steam supplied to the turbine will decrease. The cooling rate of the various elements of the unit is controlled by varying the flow rate through the start-reset device 8.
Расхолаживание части среднего давлени турбины энергоблока, оснащенного дополнительными злеме таади: :15-19, может быть произведено при помощи открыти регулирующего клапана 16 на трубопроводе 15 и задвижки 19 на трубопроводе 18 при закрытой задвижке 17.A part of the medium pressure turbine of a power unit equipped with additional taadi:: 15-19 can be cooled by opening the control valve 16 in the pipe 15 and the valve 19 in the pipe 18 with the valve 17 closed.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7301953050A SU580336A1 (en) | 1973-07-26 | 1973-07-26 | Method of shutdown cooling of power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7301953050A SU580336A1 (en) | 1973-07-26 | 1973-07-26 | Method of shutdown cooling of power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU580336A1 true SU580336A1 (en) | 1977-11-15 |
Family
ID=20562686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU7301953050A SU580336A1 (en) | 1973-07-26 | 1973-07-26 | Method of shutdown cooling of power unit |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU580336A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309873A (en) * | 1979-12-19 | 1982-01-12 | General Electric Company | Method and flow system for the control of turbine temperatures during bypass operation |
| EP1953351A1 (en) * | 2007-02-05 | 2008-08-06 | Siemens Aktiengesellschaft | Concept for pre-heating and starting of steam turbines with inlet temperatures of over 650°C |
| EP2620604A1 (en) * | 2012-01-25 | 2013-07-31 | Siemens Aktiengesellschaft | Method for controlling a cooling down process of turbine components |
-
1973
- 1973-07-26 SU SU7301953050A patent/SU580336A1/en active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309873A (en) * | 1979-12-19 | 1982-01-12 | General Electric Company | Method and flow system for the control of turbine temperatures during bypass operation |
| EP1953351A1 (en) * | 2007-02-05 | 2008-08-06 | Siemens Aktiengesellschaft | Concept for pre-heating and starting of steam turbines with inlet temperatures of over 650°C |
| EP2620604A1 (en) * | 2012-01-25 | 2013-07-31 | Siemens Aktiengesellschaft | Method for controlling a cooling down process of turbine components |
| WO2013110365A1 (en) * | 2012-01-25 | 2013-08-01 | Siemens Aktiengesellschaft | Method for controlling a cooling process of turbine components |
| CN104081008A (en) * | 2012-01-25 | 2014-10-01 | 西门子公司 | Method for controlling a cooling process of turbine components |
| CN104081008B (en) * | 2012-01-25 | 2015-11-25 | 西门子公司 | For controlling the method for the cooling procedure of turbine components |
| US9422832B2 (en) | 2012-01-25 | 2016-08-23 | Siemens Aktiengesellschaft | Method for controlling a cooling process of turbine components |
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