CN107035439A - A kind of condensing turbine exhaust casing cooling system - Google Patents
A kind of condensing turbine exhaust casing cooling system Download PDFInfo
- Publication number
- CN107035439A CN107035439A CN201710499356.8A CN201710499356A CN107035439A CN 107035439 A CN107035439 A CN 107035439A CN 201710499356 A CN201710499356 A CN 201710499356A CN 107035439 A CN107035439 A CN 107035439A
- Authority
- CN
- China
- Prior art keywords
- valve
- turbine exhaust
- pipeline
- exhaust casing
- condensing turbine
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
Abstract
The invention belongs to steam turbine equipment technical field, and in particular to a kind of condensing turbine exhaust casing cooling system.The cooling system includes vacuum extractor, condenser and condensate pump, condenser is connected by pipeline with condensate pump, condensate pump is connected with spray equipment and condensate main pipe respectively by pipeline and threeway, first check-valve, the first stop valve and regulating valve be installed on the pipeline of condensate pump and spray equipment, second check-valve and the second stop valve are housed on the pipeline of condensate pump and condensate main pipe；The condenser is connected by pipeline with vacuum extractor, and the circuit of condenser and condensing turbine exhaust casing is provided with temperature element；Spray equipment, which will condense, enters condensing turbine exhaust casing after water atomization；Regulating valve is hand-operated valve or motor-driven valve.The present invention's is simple in construction, occupies little space, with low cost, safe and reliable.
Description
Technical field：
The invention belongs to steam turbine equipment technical field, and in particular to a kind of condensing turbine exhaust casing cooling system.
Background technology：
Condensing turbine in the process of running, due to some quality events（Such as long-time no-load run）, condensing can be made
Formula steam turbine exhaust casing temperature is raised, so as to cause condensing turbine vibration big, causes to shut down.Therefore it is necessary to this kind of solidifying
Vapour formula steam turbine exhaust casing is cooled down.Condensing turbine exhaust casing is cooled down, it is presently mainly a set of by introducing
Spray desuperheating system, but this method is complicated, need that space is big, cost is high.So, a kind of extraneous need not spray water of design subtracts
The condensing turbine exhaust casing cooling system of warm system is very necessary.
The content of the invention：
The present invention makes up and improved above-mentioned the deficiencies in the prior art part, and there is provided a kind of cooling of condensing turbine exhaust casing
System, the system realizes the cooling of condensing turbine exhaust casing by regulating valve and spray equipment, by original condensing-type
Condensate system of steam turbine is used, and realizes the cooling to condensing turbine exhaust casing, simple in construction, cost-effective.
The technical solution adopted by the present invention is：A kind of condensing turbine exhaust casing cooling system, the cooling system includes
Vacuum extractor, condenser and condensate pump, condenser are connected by pipeline with condensate pump, and condensate pump passes through pipeline and three
The reduction of fractions to a common denominator is not connected with spray equipment and condensate main pipe, be provided with the pipeline of condensate pump and spray equipment first check-valve,
Second check-valve and the second stop valve are housed on the pipeline of the first stop valve and regulating valve, condensate pump and condensate main pipe；Institute
State condenser to be connected with vacuum extractor by pipeline, the circuit of condenser and condensing turbine exhaust casing is provided with thermometric member
Part.
Described spray equipment, which will condense, enters condensing turbine exhaust casing after water atomization.
Described regulating valve is hand-operated valve or motor-driven valve.
Beneficial effects of the present invention：It is simple in construction, occupy little space, it is with low cost, it is safe and reliable, it is economic and practical, it is easy to
Promote and use on a large scale.The cooling system can be in the case where not utilizing extraneous spray desuperheating system, by from condensation
Exit of pump, draws condensate all the way, by check-valves, stop valve, regulating valve and spray equipment, into condensing turbine after vapour
Cylinder is cooled down, while by controlling the cooling water flow of vacuum extractor and condenser, so as to reach the true of control condenser
Reciprocal of duty cycle, adjusts the temperature of condensate, realizes the cooling to condensing turbine exhaust casing.It is easy to use with simple in construction
Advantage；By adjusting controlling opening of valve, to realize flow control, with easy to operate outstanding feature；Spray equipment can be with
The condensate that condensate pump is exported is atomized, simple in construction, safety coefficient is high.
Brief description of the drawings：
Fig. 1 is the schematic diagram of condensing turbine exhaust casing cooling system.
Embodiment：
A kind of reference picture 1, condensing turbine exhaust casing cooling system, cooling system includes vacuum extractor 4, condenser 3
With condensate pump 5, condenser 3 is connected by pipeline with condensate pump 5, condensate pump 5 by pipeline and threeway respectively with spray
The cut-off of first check-valve 6, first is installed on the pipeline of device 9 and the connection of condensate main pipe, condensate pump 5 and spray equipment 9
The stop valve 11 of second check-valve 10 and second is housed on the pipeline of valve 7 and regulating valve 8, condensate pump 5 and condensate main pipe；It is described
Condenser 3 is connected by pipeline with vacuum extractor 4, and the circuit of condenser 3 and condensing turbine exhaust casing 1 is provided with thermometric
Element 2；Described spray equipment 9, which will condense, enters condensing turbine exhaust casing 1 after water atomization；Described regulating valve 8 is hand
Dynamic valve or motor-driven valve.The cooling system can be in the case where not utilizing extraneous spray desuperheating system, by going out from condensate pump 5
Mouthful, draw condensate all the way, by check-valves 6, stop valve 7, regulating valve 8 and spray equipment 9, into condensing turbine exhaust casing
1 is cooled down, while by controlling the cooling water flow of vacuum extractor 4 and condenser 3, so as to reach control condenser 3
Vacuum, adjusts the temperature of condensate, realizes the cooling to condensing turbine exhaust casing 1.
According to the system diagram shown in Fig. 1, complete condensing turbine exhaust casing cooling system and build.Condensing turbine exists
Before operation, stop valve 11 is first turned on, stop valve 7 and regulating valve 8 is closed, condensate pump 5 and vacuum extractor 4 is then opened,
Bring into operation system；When temperature element 2 shows that the temperature of condensing turbine exhaust casing 1 is high, stop valve 7 is opened, control is adjusted
The aperture of valve 8 is saved, condensing turbine exhaust casing 1 is cooled down；, can be by controlling vacuum means during cooling
The cooling water flow of 4 and condenser 3 is put, so as to reach the vacuum of control condenser 3, you can the temperature to condensate is adjusted
Section；
When condensing turbine is out of service, stop valve 7 and regulating valve 8 are first shut off, condensate pump 5 is then shut off, vacuumizes
Device 4 and stop valve 11.
Claims (3)
1. a kind of condensing turbine exhaust casing cooling system, it is characterised in that：The cooling system includes vacuum extractor（4）、
Condenser（3）And condensate pump（5）, condenser（3）Pass through pipeline and condensate pump（5）Connection, condensate pump（5）Pass through pipeline
And threeway respectively with spray equipment（9）With the connection of condensate main pipe, condensate pump（5）And spray equipment（9）Pipeline on install
There is first check-valve（6）, the first stop valve（7）And regulating valve（8）, condensate pump（5）It is equipped with the pipeline of condensate main pipe
Second check-valve（10）With the second stop valve（11）；The condenser（3）Pass through pipeline and vacuum extractor（4）Connection, condensation
Device（3）With condensing turbine exhaust casing（1）Circuit be provided with temperature element（2）.
2. a kind of condensing turbine exhaust casing cooling system according to claim 1, it is characterised in that：Described spray
Device（9）It will condense and enter condensing turbine exhaust casing after water atomization（1）.
3. a kind of condensing turbine exhaust casing cooling system according to claim 1, it is characterised in that：Described regulation
Valve（8）For hand-operated valve or motor-driven valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499356.8A CN107035439B (en) | 2017-06-27 | 2017-06-27 | Rear cylinder cooling system of condensing steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499356.8A CN107035439B (en) | 2017-06-27 | 2017-06-27 | Rear cylinder cooling system of condensing steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107035439A true CN107035439A (en) | 2017-08-11 |
| CN107035439B CN107035439B (en) | 2023-09-12 |
Family
ID=59541337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710499356.8A Active CN107035439B (en) | 2017-06-27 | 2017-06-27 | Rear cylinder cooling system of condensing steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035439B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999061758A2 (en) * | 1998-05-26 | 1999-12-02 | Siemens Aktiengesellschaft | Method and device for cooling a low-pressure stage of a steam turbine |
| US6094914A (en) * | 1995-08-31 | 2000-08-01 | Siemens Aktiengesellschaft | Method and device for cooling a low-pressure turbine section |
| CN2613593Y (en) * | 2003-04-10 | 2004-04-28 | 江苏省电力公司常州供电公司 | Spray circulation cooling device for discharge cylinder of steam turbine |
| EP1760274A1 (en) * | 2005-04-27 | 2007-03-07 | Ansaldo Energia S.P.A. | A turbine plant provided with a steam bleed and a system for cooling a turbine section arranged downstream of such steam bleed |
| US20110030335A1 (en) * | 2009-08-06 | 2011-02-10 | General Electric Company | Combined-cycle steam turbine and system having novel cooling flow configuration |
| CN202391489U (en) * | 2011-12-23 | 2012-08-22 | 陕西华富新能源有限公司 | Rear cylinder spraying temperature-lowering water system for 30MW straight condensing turbine |
| CN103089346A (en) * | 2012-12-28 | 2013-05-08 | 东方电气集团东方汽轮机有限公司 | Forced cooling system of steam turbine generator set |
| CN203702271U (en) * | 2013-12-31 | 2014-07-09 | 山西大唐国际运城发电有限责任公司 | Device for lowering exhaust steam temperature of steam turbine |
| CN104533650A (en) * | 2014-12-29 | 2015-04-22 | 东方电气集团东方汽轮机有限公司 | Water spry cooling method and system of low-pressure exhaust hood of air-cooling steam turbine |
| CN105673101A (en) * | 2016-01-07 | 2016-06-15 | 山西漳泽电力股份有限公司电力技术研究中心 | Turbine with deep peak regulation function and thermodynamic system |
| CN205654386U (en) * | 2016-04-14 | 2016-10-19 | 长安益阳发电有限公司 | Jar cooling system behind turbine unit |
| CN106224020A (en) * | 2016-09-30 | 2016-12-14 | 北京北方三合能源技术有限公司 | A kind of fired power generating unit two-way accumulation of energy fall coal consumption system |
| CN206845236U (en) * | 2017-06-27 | 2018-01-05 | 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 |
-
2017
- 2017-06-27 CN CN201710499356.8A patent/CN107035439B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094914A (en) * | 1995-08-31 | 2000-08-01 | Siemens Aktiengesellschaft | Method and device for cooling a low-pressure turbine section |
| WO1999061758A2 (en) * | 1998-05-26 | 1999-12-02 | Siemens Aktiengesellschaft | Method and device for cooling a low-pressure stage of a steam turbine |
| CN2613593Y (en) * | 2003-04-10 | 2004-04-28 | 江苏省电力公司常州供电公司 | Spray circulation cooling device for discharge cylinder of steam turbine |
| EP1760274A1 (en) * | 2005-04-27 | 2007-03-07 | Ansaldo Energia S.P.A. | A turbine plant provided with a steam bleed and a system for cooling a turbine section arranged downstream of such steam bleed |
| US20110030335A1 (en) * | 2009-08-06 | 2011-02-10 | General Electric Company | Combined-cycle steam turbine and system having novel cooling flow configuration |
| CN202391489U (en) * | 2011-12-23 | 2012-08-22 | 陕西华富新能源有限公司 | Rear cylinder spraying temperature-lowering water system for 30MW straight condensing turbine |
| CN103089346A (en) * | 2012-12-28 | 2013-05-08 | 东方电气集团东方汽轮机有限公司 | Forced cooling system of steam turbine generator set |
| CN203702271U (en) * | 2013-12-31 | 2014-07-09 | 山西大唐国际运城发电有限责任公司 | Device for lowering exhaust steam temperature of steam turbine |
| CN104533650A (en) * | 2014-12-29 | 2015-04-22 | 东方电气集团东方汽轮机有限公司 | Water spry cooling method and system of low-pressure exhaust hood of air-cooling steam turbine |
| CN105673101A (en) * | 2016-01-07 | 2016-06-15 | 山西漳泽电力股份有限公司电力技术研究中心 | Turbine with deep peak regulation function and thermodynamic system |
| CN205654386U (en) * | 2016-04-14 | 2016-10-19 | 长安益阳发电有限公司 | Jar cooling system behind turbine unit |
| CN106224020A (en) * | 2016-09-30 | 2016-12-14 | 北京北方三合能源技术有限公司 | A kind of fired power generating unit two-way accumulation of energy fall coal consumption system |
| CN206845236U (en) * | 2017-06-27 | 2018-01-05 | 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 |
Non-Patent Citations (7)
| Title |
|---|
| 丁杰;俞培良;: "300MW汽轮机停机后快速冷却的一种方法", 华东电力, no. 01, pages 38 - 40 * |
| 崔桂中: "300MW汽轮机低压缸尾部喷水改造", 《科技展望》 * |
| 崔桂中: "300MW汽轮机低压缸尾部喷水改造", 《科技展望》, no. 11, 20 April 2016 (2016-04-20) * |
| 胥建群等: "汽轮机停机后加速冷却方法的讨论", 《汽轮机技术》 * |
| 胥建群等: "汽轮机停机后加速冷却方法的讨论", 《汽轮机技术》, no. 03, 30 June 2000 (2000-06-30) * |
| 陈召攀: "凝汽器低压缸减温水系统改造方法比较", 《广西电力》 * |
| 陈召攀: "凝汽器低压缸减温水系统改造方法比较", 《广西电力》, no. 01, 28 February 2014 (2014-02-28) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107035439B (en) | 2023-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103047876B (en) | Maintain the devices and methods therefor of thermal power plant condenser vacuum | |
| CN206670200U (en) | The vacuum freeze drier of anti-suck | |
| US20140331671A1 (en) | Water/steam cycle and method for operating the same | |
| CN204601654U (en) | The open type heat pump distillation system of cooling in a kind of compression process band | |
| WO2018192905A3 (en) | Water extraction device and method for extracting water | |
| CN206845236U (en) | A kind of condensing turbine exhaust casing cooling system | |
| CN206378017U (en) | A kind of closed condensate recycling can exhaust steam secondary recovery system | |
| CN107035439A (en) | A kind of condensing turbine exhaust casing cooling system | |
| CN107013262A (en) | It is a kind of to cut off heating system and method that low pressure (LP) cylinder enters vapour | |
| CN2600590Y (en) | Closed tube with bypass small butterfly valve device | |
| CN205779572U (en) | Air compressor machine oil circuit circulating device | |
| CN105782950A (en) | Closed type high-temperature condensed water recoverer device and recovery method thereof | |
| CN204609957U (en) | A kind of Air-cooler Unit Feed Pump drive unit | |
| CN205225349U (en) | Condensing system of condensing formula screw rod expander | |
| CN204202234U (en) | A kind of take solar energy as the ejector refrigeration system driven | |
| CN207245781U (en) | A kind of coupled system of absorption heat pump and air cooling unit | |
| CN107036454A (en) | The vacuum regulator and its control method of turbine condenser | |
| CN103486002A (en) | Vacuumizing system of turbine | |
| CN206556456U (en) | A kind of evacuation system for steam condenser for transforming vacuum pump inlet pipe | |
| CN205101237U (en) | Steam turbine vacuum pumping system | |
| CN205748027U (en) | The Direct Air-Cooled thermal power plant unit pumped vacuum systems of vacuum pump stable operation can be made | |
| CN202346214U (en) | Novel unpowered low-temperature heating anti-freezing structure | |
| CN204574853U (en) | Water vapor condenser vacuum extractor | |
| CN105910092B (en) | A kind of back pressure unit vacuum dust cather system and condensation water round-robin method | |
| CN205919490U (en) | Idle call convenient to detach maintains condenser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |