CN1807845B - 蒸汽涡轮机 - Google Patents

蒸汽涡轮机 Download PDF

Info

Publication number
CN1807845B
CN1807845B CN2005101358518A CN200510135851A CN1807845B CN 1807845 B CN1807845 B CN 1807845B CN 2005101358518 A CN2005101358518 A CN 2005101358518A CN 200510135851 A CN200510135851 A CN 200510135851A CN 1807845 B CN1807845 B CN 1807845B
Authority
CN
China
Prior art keywords
series
amount
steam turbine
weight percentage
nickel
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.)
Active
Application number
CN2005101358518A
Other languages
English (en)
Other versions
CN1807845A (zh
Inventor
C·科尔特斯
P·本迪内利
M·德伊亚科
L·科西
M·安塞尔米
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nuovo Pignone Technologie SRL
Original Assignee
Nuovo Pignone SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nuovo Pignone SpA filed Critical Nuovo Pignone SpA
Publication of CN1807845A publication Critical patent/CN1807845A/zh
Application granted granted Critical
Publication of CN1807845B publication Critical patent/CN1807845B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F02C1/04—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly
    • F02C1/05—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0466—Nickel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/13—Refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
    • F05D2300/131—Molybdenum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12944—Ni-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

用包含特别是诸如氯化物和/或硫化物之类的腐蚀剂的地热蒸汽来操作的蒸汽涡轮机。该涡轮机包括一系列由包含重量百分比范围从55％到59％的量的镍的镍合金制成的转子叶片，以避免清洗地热蒸汽，维持该系列的转子叶片和蒸汽涡轮机的高的使用寿命。

Description

蒸汽涡轮机
技术领域
本发明涉及蒸汽涡轮机，其可以用于从地热蒸汽获得能量。
背景技术
用地热蒸汽操作的蒸汽涡轮机接触对涡轮机自身的部件具有侵蚀性和/或腐蚀性的物质。
甚至少量的诸如氯化物和硫化物之类的侵蚀性的物质也会引起诸如转子叶片、定子叶片和密封层之类的蒸汽涡轮机部件的腐蚀。
当前用于蒸汽涡轮机部件的材料是马氏体不锈钢，其在侵蚀剂和/或腐蚀剂方面强烈地遭受腐蚀现象。
腐蚀在过热的蒸汽和潮湿蒸汽之间的过渡区域(露点)是特别高的。
在该区域中，包含在地热蒸汽中的固体颗粒在叶片的表面上形成大量沉积物。
在涡轮机运行期间，由于诸如氯化物和硫化物之类的腐蚀剂局部浓度的增加，沉积物在进行中加速腐蚀过程。
涡轮机部件的腐蚀危害涡轮机自身的正确功能性，以及为其规划的预防性维护计划。
为了减小维护介入，以及因此也减小部件自身的替代，用水“清洗”包含高于预定百分比量的侵蚀性物质的地热蒸汽。
这减小了地热蒸汽中存在的侵蚀性物质的浓度。
第一个缺点在于，地热蒸汽的清洗操作导致工厂运行和维护成本增加，也增加了其复杂性。
另一个缺点在于，清洗蒸汽减小了涡轮机入口处可用的焓，因此减小了涡轮机自身的有用功。
发明内容
本发明的目的是提供一种用通常包含腐蚀剂的过热的地热蒸汽操作的蒸汽涡轮机，其避免清洗所述地热蒸汽。
还有一个目的是提供一种用通常包含腐蚀剂的地热蒸汽操作的蒸汽涡轮机，其具有在入口处可用能量的高的转换效率。
另一个目的是提供一种用过热的地热蒸汽操作且具有高的使用寿命的蒸汽涡轮机。
还有一个目的是提供一种用包含腐蚀剂的地热蒸汽操作的蒸汽涡轮机，其具有减小的维护成本。
通过提供如权利要求1所述的蒸汽涡轮机实现了根据本发明的这些目的。
本发明的还有的特征在从属权利要求中指出。
从下面的本发明的示例性且非限制性的描述可以更加明白用地热蒸汽操作的蒸汽涡轮机的特征和优点。
根据本发明，提供了一种蒸汽涡轮机，其用包含特别是诸如氯化物和/或硫化物之类的侵蚀剂或者腐蚀剂的地热蒸汽来操作。
蒸汽涡轮机包括一系列由包含重量百分比范围从55％到59％的量的镍的镍合金制成的转子叶片，以避免清洗所述地热蒸汽，同时维持所述系列的转子叶片和所述蒸汽涡轮机的高的使用寿命。
通过所述涡轮机，有利地可以转换较大量的能量，因为不清洗的地热蒸汽相对于清洗的地热蒸汽具有较高的焓。
有利地，所述涡轮机对于包含高于2ppm的量的氯化物的地热蒸汽特别有效，避免了其清洗。
所述镍合金优选的是镍-铬-钼-铌合金。
所述镍合金优选包括重量百分比范围从19％到22.5％的量的铬，重量百分比范围从7.0％到9.5％的量的钼，重量百分比范围从2.75％到4％的量的铌。
所述镍合金优选是市场上已知为INCONEL 725的镍的超级合金。
所述涡轮机优选还包括一系列由镍-铬-钼合金制成的定子叶片，以避免清洗所述地热蒸汽，同时维持所述系列的定子叶片和蒸汽涡轮机自身的高的使用寿命。
所述镍-铬-钼合金优选包括重量百分比范围从54％到58％的量的镍，重量百分比范围从21％到23％的量的铬，重量百分比范围从12％到14.5％的量的钼。
所述镍-铬-钼合金优选是市场上已知为HASTELLOY C22的镍的超级合金。
所述涡轮机优选还包括一系列由所述镍-铬-钼合金制成的，特别是由HASTELLOY C22制成的密封层。
此目的是为了避免清洗所述地热蒸汽，维持所述蒸汽涡轮机的所述系列的转子叶片、定子叶片和密封层的高的使用寿命。
根据本发明的还有的方面，使用一系列由镍-铬-钼-铌合金制成的，特别是由INCONEL 725制成的转子叶片用于用包含特别是诸如氯化物和/或硫化物之类的腐蚀剂的地热蒸汽操作的蒸汽涡轮机是显然的，以避免清洗所述地热蒸汽，维持所述系列的转子叶片的高的使用寿命。
有利地，本发明的蒸汽涡轮机能够用过热的地热蒸汽操作，且当地热蒸汽包含高于2ppm的量的诸如氯化物和/或硫化物之类的腐蚀物质时，本发明的蒸汽涡轮机还能够避免地热蒸汽的清洗操作。
因此，可以看出，根据本发明的蒸汽涡轮机实现了上述目的。
据此设计的本发明的蒸汽涡轮机可以经历许多修改和变动，均包括在同一发明概念内。
此外，实际上，它们的尺寸和部件可以根据技术要求而变化。

Claims (4)

1.一种用包含腐蚀剂的地热蒸汽来操作的蒸汽涡轮机，其特征在于，其包括一系列由包含重量百分比范围从55％到59％的量的镍的镍合金制成的转子叶片，以避免清洗所述地热蒸汽，维持所述系列的转子叶片和所述蒸汽涡轮机的高的使用寿命，其中所述镍合金是镍-铬-钼-铌合金，并且其中所述镍合金包括重量百分比范围从19％到22.5％的量的铬，重量百分比范围从7.0％到9.5％的量的钼，重量百分比范围从2.75％到4％的量的铌。
2.根据权利要求1所述的涡轮机，其特征在于，其包括一系列由镍-铬-钼合金制成的定子叶片，以避免清洗所述地热蒸汽，维持所述系列的定子叶片和所述蒸汽涡轮机的高的使用寿命。
3.根据权利要求2所述的涡轮机，其特征在于，所述镍-铬-钼合金包括重量百分比范围从54％到58％的量的镍，重量百分比范围从21％到23％的量的铬，重量百分比范围从12％到14.5％的量的钼。
4.根据权利要求2所述的涡轮机，其特征在于，其包括一系列由所述镍-铬-钼合金制成的密封层，以避免清洗所述地热蒸汽，维持所述系列的密封层和所述蒸汽涡轮机的高的使用寿命。
CN2005101358518A 2004-12-23 2005-12-23 蒸汽涡轮机 Active CN1807845B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2004A002481 2004-12-23
ITMI20042481 ITMI20042481A1 (it) 2004-12-23 2004-12-23 Turbina a vapore

Publications (2)

Publication Number Publication Date
CN1807845A CN1807845A (zh) 2006-07-26
CN1807845B true CN1807845B (zh) 2012-04-25

Family

ID=36592954

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2005101358518A Active CN1807845B (zh) 2004-12-23 2005-12-23 蒸汽涡轮机

Country Status (5)

Country Link
US (1) US7498087B2 (zh)
EP (1) EP1688593B1 (zh)
CN (1) CN1807845B (zh)
IT (1) ITMI20042481A1 (zh)
PL (1) PL1688593T3 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20042483A1 (it) * 2004-12-23 2005-03-23 Nuovo Pignone Spa Turbina a vapore
EP2047003B1 (en) * 2006-07-25 2013-09-04 Ansaldo Energia S.P.A. Highly corrosion-resistant movable blade assembly for a steam turbine, in particular a geothermal impulse turbine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496635A (en) * 1980-04-09 1985-01-29 The United States Of America As Represented By The United States Department Of Energy Amorphous metal alloy and composite
US6177046B1 (en) * 1996-04-10 2001-01-23 The Penn State Research Foundation Superalloys with improved oxidation resistance and weldability
CN1831298A (zh) * 2004-12-23 2006-09-13 诺沃皮尼奥内有限公司 蒸汽涡轮机
CN1831299A (zh) * 2004-12-23 2006-09-13 诺沃皮尼奥内有限公司 蒸汽涡轮机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB770909A (en) * 1954-06-18 1957-03-27 Rolls Royce Alloys for gas-turbine engines
FR1458768A (fr) * 1964-10-21 1966-03-04 United Aircraft Corp Traitement thermique d'alliages
US3310440A (en) * 1964-10-21 1967-03-21 United Aircraft Corp Heat treatment of nickel base alloys
US5480283A (en) * 1991-10-24 1996-01-02 Hitachi, Ltd. Gas turbine and gas turbine nozzle
JPH07278780A (ja) * 1994-04-13 1995-10-24 Toshiba Corp 地熱蒸気タービン用材料及びその溶射材料
US5858558A (en) * 1996-10-30 1999-01-12 General Electric Company Nickel-base sigma-gamma in-situ intermetallic matrix composite
US6354799B1 (en) * 1999-10-04 2002-03-12 General Electric Company Superalloy weld composition and repaired turbine engine component
JP4509664B2 (ja) * 2003-07-30 2010-07-21 株式会社東芝 蒸気タービン発電設備

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496635A (en) * 1980-04-09 1985-01-29 The United States Of America As Represented By The United States Department Of Energy Amorphous metal alloy and composite
US6177046B1 (en) * 1996-04-10 2001-01-23 The Penn State Research Foundation Superalloys with improved oxidation resistance and weldability
CN1831298A (zh) * 2004-12-23 2006-09-13 诺沃皮尼奥内有限公司 蒸汽涡轮机
CN1831299A (zh) * 2004-12-23 2006-09-13 诺沃皮尼奥内有限公司 蒸汽涡轮机

Also Published As

Publication number Publication date
EP1688593B1 (en) 2018-09-26
PL1688593T3 (pl) 2019-02-28
CN1807845A (zh) 2006-07-26
ITMI20042481A1 (it) 2005-03-23
US20060140775A1 (en) 2006-06-29
US7498087B2 (en) 2009-03-03
EP1688593A1 (en) 2006-08-09

Similar Documents

Publication Publication Date Title
EP1674561B1 (en) Method for removing engine deposits from turbine components and composition for use in same
EP2677063B1 (en) Erosion and corrosion resistant coatings for exhaust gas recirculation-based gas turbines
JP4874512B2 (ja) 基材からアルミノケイ酸塩物質を除去する方法及びそれに用いる組成物
CN1807845B (zh) 蒸汽涡轮机
CN102518475A (zh) 蒸汽涡轮机
JP2017096261A (ja) タービン部品の超疎水性表面強化システム及び方法
CN102606226A (zh) 蒸汽涡轮机
US7422798B2 (en) Vapour turbine
US20200055615A1 (en) Method and apparatus for removing coatings
JP2009250120A (ja) ガスタービンの部品腐食推定方法、部品寿命推定方法、ガスタービンの設計方法及びガスタービン
Richardson et al. Steam purity considerations in geothermal power generation
EP2047003B1 (en) Highly corrosion-resistant movable blade assembly for a steam turbine, in particular a geothermal impulse turbine
US20240158921A1 (en) Coating composition, coated turbine component, and method of applying the coating
Swain et al. Plasma spray coating: a weapon to fight with erosion and corrosion phenomena
Linden Know Your Turbomachinery’s Operating Environment!
RU63451U1 (ru) Рабочая лопатка влажнопаровой ступени турбины с двухслойным эрозионностойким покрытием пера лопатки
JP2006063421A (ja) 半導体製造装置用部材の補修方法
JPH05137953A (ja) 排煙脱硫装置用軸流フアン
JP2006066784A (ja) 半導体製造装置用可動部部材の補修方法。

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20220316

Address after: Italy, Florence

Patentee after: NUOVO PIGNONE S.R.L.

Address before: Italy, Florence

Patentee before: NUOVO PIGNONE S.P.A.

Effective date of registration: 20220316

Address after: Italy, Florence

Patentee after: NUOVO PIGNONE TECNOLOGIE S.R.L.

Address before: Italy, Florence

Patentee before: NUOVO PIGNONE S.R.L.

TR01 Transfer of patent right