CN2613593Y - Spray circulation cooling device for discharge cylinder of steam turbine - Google Patents
Spray circulation cooling device for discharge cylinder of steam turbine Download PDFInfo
- Publication number
- CN2613593Y CN2613593Y CN 03221159 CN03221159U CN2613593Y CN 2613593 Y CN2613593 Y CN 2613593Y CN 03221159 CN03221159 CN 03221159 CN 03221159 U CN03221159 U CN 03221159U CN 2613593 Y CN2613593 Y CN 2613593Y
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- CN
- China
- Prior art keywords
- water
- gland heater
- pipe
- condensate
- 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.)
- Expired - Fee Related
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a circulating coolant mechanism for a steam turbine, particularly relating to a spray circulating coolant mechanism for the exhaust hood of a steam turbine. The utility model comprises multiple assemblies of spray heads, a coagulator, a catch-water channel, two assemblies of parallel condensate water pumps, a condensation water pipe and a shaft gland heater, wherein the water inlet and the water outlet of the condensate water pump are respectively connected with the catch-water channel and the condensation water pipe which is connected with the shaft gland heater, the condensation water pipe arranged at the back portion of the shaft gland heater is connected with a recycling water pipe, the water outlet of the recycling water pipe is provided with multiple assemblies of spray heads. The spray head is directly connected with the recycling water pipe, thereby achieving not only abundant spray water discharge, but also the water discharge of the shaft gland heater. The structure of the circulation loop is simple, thereby improving the safety and reliability of equipment performance.
Description
Technical field
The utility model relates to a kind of circulating cooler of steam turbine, especially relates to a kind of spray circulating cooler of turbine discharge cylinder.
Background technique
The copper pipe of steam turbine condenser was not to be welded with being connected of dividing plate, but adopted tube expander to connect, therefore, when the exhaust casing temperature too high, will cause the copper pipe heat expansion to cross ambassador's circulating water leakage, so not only cause the defective of water of condensation, condenser vacuum is descended.In addition, too high when the temperature of exhaust casing, also can cause unit rotor expansion inequality, and cause unit coupling place bearing vibration.In order to reduce the temperature of exhaust casing, therefore the exhaust casing place has been installed additional spray cooling device.Supply water to spraying head but be positioned at the condensate pipe of gland heater front portion and be connected to spray header, therefore in unit running process, there is following problem: the first, because condensate pump supplies water for condensate pipe and two loops of spray header, not only increased the complexity of cooling unit, but also increased the backwater amount, cause the water level in the collecting annulus to raise, cause the interlock of standby condensate pump, can make the exhaust tube water inlet when serious.The second, be contained in before the gland heater owing to spray header; when increasing the spray water-outlet quantity; can cause the deficiency of the gland heater water yield again; can not protect gland heater well; long-time temperature is too high, can cause gland heater to leak, and make steam leakage; cause the utilization ratio of steam heat to descend on the one hand, can make the pollution of working environment on the other hand.When the spray water-outlet quantity reduces, can not play the purpose that reduces the exhaust casing temperature again, cause water yield unreasonable distribution.Three, owing to should protect spray water-outlet quantity abundance, guarantee the normal operation of gland heater again, thus the temperature of collecting annulus and exhaust casing will manually be monitored, and constantly adjust the equinoctial point between them, increased staff's workload.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, can make spray water-outlet quantity abundance, can guarantee the gland heater water yield again, turbine discharge cylinder spray circulation cooling dress safe and reliable to operation.
The utility model for the technological scheme that achieves the above object is: a kind of turbine discharge cylinder spray circulating cooler, the condensate pump, condensate pipe and the gland heater that comprise many group spraying heads, coagulator, collecting annulus, two groups of parallel connections, it is characterized in that: the intake-outlet of condensate pump connects collecting annulus and condensate pipe respectively, be connected to gland heater on the condensate pipe, the condensate pipe that is positioned at the gland heater rear portion is connected to recirculation pipe, and many group spraying heads are equipped with in the outlet port of recirculation pipe.
The utility model adopts the advantage after the technique scheme to be: the first, the utility model is connected to recirculation pipe at the condensate pipe at oil sealing heater rear portion, and the outlet port of recirculation pipe connects spraying head, after having cancelled spray header, therefore supply water to spraying head by a recirculation circuit, can not only simplified structure, but also can improve operation stability of equipment.The second, behind the cancellation spray header, condensate pump only supplies the condensate pipe loop, solved the spray water-outlet quantity big after, the danger that causes gland heater to cut off the water supply, when increasing the spray water-outlet quantity, because gland heater is positioned at the front portion of spraying head, also just increased the water yield of gland heater simultaneously, therefore can improve the safety reliability of equipment operation.Three, owing to improved the circulation loop of spray cooling, after using spray equipment, can not produce the too high problem of collecting annulus water level again, solve the excessive phenomenon of backwater amount, improve the safety reliability of equipment operation.Four, of the present utility model owing to solved the backwater problem, simplify the operation, reduce misoperation, alleviate operations staff's labor intensity.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Embodiment
See turbine discharge cylinder spray circulating cooler shown in Figure 1, comprise that being arranged on the steam turbine exhaust ports is equipped with many group spraying heads 1, the coagulator 2 of spraying head 1 bottom, coagulator has the collecting annulus 3 of collecting water of condensation for 2 times, the water intake of condensate pump 5 is communicated with collecting annulus 3, the intake-outlet of condensate pump 5 connects condensate pipe 8, by condensate pump 5 water of condensation is squeezed in the condensate pipe 8.For guaranteeing the Security of operation, this condensate pump 5 be two groups parallel, use a condensate pump in the proper functioning, another is then as standby, and control valve 4,7 all is housed on the pipeline of the import and export of every condensate pump 5, and on the pipeline of the outlet of condensate pump 5, one-way valve 6 is housed also.
See Fig. 1, have gland heater 14 on condensate pipe 8, the condensate pipe 8 that is positioned at gland heater 14 rear portions is connected to recirculation pipe 15, and many group spraying heads 1 are equipped with in the outlet port of recirculation pipe 15.Therefore the utility model is only supplied with many group spraying heads 1 by the recirculation pipe 15 at gland heater 14 rear portions, not only simplified the circulation cooling circuit structure, and solved the problem that spraying head 1 and gland heater 14 water yield unreasonable distribution and backwater amount increase, improved the reliability of unit safety operation.
For ease of the inflow of control spraying head 1, the condensate pipe 8 between gland heater 14 and spraying head 1 is parallel with mortor operated valve 12 and stop valve 13.
See Fig. 1, the intake-outlet place of gland heater 14 is provided with control valve 9,11, and with condensate pipe 8 that control valve 9,11 is connected on also be provided with bypass valve 10.
When the steam turbine proper functioning, start condensate pump 5, close bypass valve 10 and stop valve 13, open control valve 9,11, then water of condensation is supplied with gland heaters 14 earlier by condensate pump 5, by low-pressure heater 16, deliver to oxygen-eliminating device after, be recycled.When unit was in the idling lotus, the temperature of turbine discharge cylinder raise, and opened mortor operated valve 12 this moment, and the water of condensation of a part is then supplied with many group spraying heads 1 by recirculation pipe 15, carries out cold to exhaust casing.
Claims (3)
1, a kind of turbine discharge cylinder spray circulating cooler, the condensate pump (4), condensate pipe (8) and the gland heater (14) that comprise many group spraying heads (1), coagulator (2), collecting annulus (3), two groups of parallel connections, it is characterized in that: the intake-outlet of condensate pump (5) connects collecting annulus (3) and condensate pipe (8) respectively, be connected to gland heater (14) on the condensate pipe (8), the condensate pipe (8) that is positioned at gland heater (14) rear portion is connected to recirculation pipe (15), and many group spraying heads (1) are equipped with in the outlet port of recirculation pipe (15).
2, turbine discharge cylinder spray circulating cooler according to claim 1, it is characterized in that: recirculation pipe (15) is gone up parallel connection mortor operated valve (12) and control valve (13) is housed.
3, turbine discharge cylinder spray circulating cooler according to claim 1, it is characterized in that: the intake-outlet place of gland heater (14) is provided with control valve (9), (11), and with condensate pipe (8) that control valve (9), (11) are connected in also be provided with bypass valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221159 CN2613593Y (en) | 2003-04-10 | 2003-04-10 | Spray circulation cooling device for discharge cylinder of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221159 CN2613593Y (en) | 2003-04-10 | 2003-04-10 | Spray circulation cooling device for discharge cylinder of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613593Y true CN2613593Y (en) | 2004-04-28 |
Family
ID=34244524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221159 Expired - Fee Related CN2613593Y (en) | 2003-04-10 | 2003-04-10 | Spray circulation cooling device for discharge cylinder of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613593Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035439A (en) * | 2017-06-27 | 2017-08-11 | 中国船舶重工集团公司第七�三研究所 | A kind of condensing turbine exhaust casing cooling system |
| CN108223029A (en) * | 2017-12-26 | 2018-06-29 | 东南大学 | The temperature control system and its control method of a kind of discharge cylinder of steam turbine |
| CN109268813A (en) * | 2018-09-27 | 2019-01-25 | 衢州东港环保热电有限公司 | A kind of recoverying and utilizing method and its device of oxygen-eliminating device waste steam exhausting |
-
2003
- 2003-04-10 CN CN 03221159 patent/CN2613593Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035439A (en) * | 2017-06-27 | 2017-08-11 | 中国船舶重工集团公司第七�三研究所 | A kind of condensing turbine exhaust casing cooling system |
| CN107035439B (en) * | 2017-06-27 | 2023-09-12 | 中国船舶重工集团公司第七�三研究所 | Rear cylinder cooling system of condensing steam turbine |
| CN108223029A (en) * | 2017-12-26 | 2018-06-29 | 东南大学 | The temperature control system and its control method of a kind of discharge cylinder of steam turbine |
| CN108223029B (en) * | 2017-12-26 | 2020-09-15 | 东南大学 | Temperature control system and method for exhaust cylinder of steam turbine |
| CN109268813A (en) * | 2018-09-27 | 2019-01-25 | 衢州东港环保热电有限公司 | A kind of recoverying and utilizing method and its device of oxygen-eliminating device waste steam exhausting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |