CN101341272A - 用于低温用途的压缩机壳体 - Google Patents

用于低温用途的压缩机壳体 Download PDF

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Publication number
CN101341272A
CN101341272A CNA2006800482027A CN200680048202A CN101341272A CN 101341272 A CN101341272 A CN 101341272A CN A2006800482027 A CNA2006800482027 A CN A2006800482027A CN 200680048202 A CN200680048202 A CN 200680048202A CN 101341272 A CN101341272 A CN 101341272A
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China
Prior art keywords
housing
cast steel
low temperature
temperature applications
fluid machinery
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CNA2006800482027A
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English (en)
Inventor
R·博德
B·兰格汉
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Siemens AG
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Siemens AG
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Publication of CN101341272A publication Critical patent/CN101341272A/zh
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite
    • 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
    • F05C2201/0448—Steel
    • 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
    • F05D2300/17—Alloys
    • F05D2300/171—Steel alloys
    • 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
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/608—Microstructure

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

本发明涉及一种具有壳体的流体机械。该流体机械尤其是用于低温用途的涡轮压缩机，其中该壳体优选地由具有马氏体组织的冷韧性的材料制成。

Description

用于低温用途的压缩机壳体
技术领域
本发明涉及一种流体机械，尤其是用于低温用途的压缩机或者说涡轮压缩机，其中该流体机械具有壳体。
背景技术
这类具有壳体的流体机械是众所周知的。尤其必须如此构造压缩机的或者说涡轮压缩机的壳体，使得它们经受住高的内部压力。在此，公开了在非常低的运行温度(＜-120℃)下使用尤其具有奥氏体晶体结构的冷韧性的(
Figure A20068004820200031
)钢这样的材料来制造壳体，其中具有奥氏体晶体结构的冷韧性的钢不利的是具有非常小的强度。因此，现有的压缩机或者说涡轮压缩机的用于低温用途的壳体设计成具有较大的壁厚，从而可以在材料强度非常低的情况下经受住较高的内部压力。
此外因为奥氏体钢不利的是具有微小的热导能力和高的热膨胀系数，所以进一步存在壳体内部大的温度梯度的危险以及热应力直至残余塑性变形的危险。
发明内容
本发明的任务是以简单的措施改进一种用于低温用途的壳体，尤其是用于压缩机的壳体，优选是用于涡轮压缩机的壳体，使得该壳体即使在非常低的运行温度下也可以以较小的壁厚进行制造。
按本发明该任务通过由具有马氏体组织的冷韧性的材料来制造壳体这一方式得到解决。
在本发明的思想中有利的是，该壳体由冷韧性的的铸钢制成，其中有针对性地这样设置，即该壳体由具有8.5到10％的镍含量的冷韧性的铸钢制成。
在此证明具有牌号ASTM A 352 LC 9的材料是特别合适的。当然其它具有高镍含量的冷韧性的铸钢也是合适的。
然而按本发明，该任务也通过使用具有马氏体组织的冷韧性的材料来制造用于低温用途的涡轮压缩机壳体这一方式得到解决，其中这里优选材料ASTM A 352 LC 9是合适的。
具有高镍含量的冷韧性的铸钢尤其适用于直至-196℃的低温。由于有利的合金成分，镍合金钢的组织是马氏体的，其中该镍合金钢与具有奥氏体晶体结构的钢相比具有更高的0.2％的屈服强度，更小的热膨胀和更高的热导能力。
更高的屈服强度有利地实现壳体的更小的壁厚，由此需要更少的壳体材料，从而显著降低用于制造壳体的成本。总的来说，通过具有高镍含量的冷韧性的铸钢的、尤其是材料ASTM A 352 LC 9的特性组合，实现了更好的温度梯度并且减少热应力，由此排除了塑性变形的危险。

Claims (6)

1.具有壳体的流体机械，其特征在于，所述壳体由具有马氏体组织的冷韧性的材料制成。
2.按权利要求1所述的流体机械，其特征在于，所述壳体由冷韧性的铸钢制成。
3.按权利要求1或2所述的流体机械，其特征在于，所述壳体由具有8.5到10％的镍含量的冷韧性的铸钢制成。
4.按上述权利要求中任一项所述的流体机械，其特征在于，所述壳体由材料ASTM A 352 LC 9制成。
5.按上述权利要求中任一项所述的流体机械，其特征在于，所述壳体是压缩机壳体，尤其是用于低温用途的涡轮压缩机壳体。
6.尤其按上述权利要求中任一项所述的具有马氏体组织的冷韧性的铸钢制造用于低温用途的涡轮压缩机壳体的应用。
CNA2006800482027A 2005-12-20 2006-12-15 用于低温用途的压缩机壳体 Pending CN101341272A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05027971A EP1801254A1 (de) 2005-12-20 2005-12-20 Verdichtergehäuse aus Gussstahl für Tieftemperaturanwendungen
EP05027971.0 2005-12-20

Publications (1)

Publication Number Publication Date
CN101341272A true CN101341272A (zh) 2009-01-07

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Country Status (5)

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US (1) US20080317589A1 (zh)
EP (2) EP1801254A1 (zh)
CN (1) CN101341272A (zh)
NO (1) NO20082884L (zh)
WO (1) WO2007071618A2 (zh)

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US10557358B2 (en) * 2015-02-06 2020-02-11 United Technologies Corporation Gas turbine engine containment structures

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US2462600A (en) * 1943-01-16 1949-02-22 Jarvis C Marble Turbine
WO1993013304A1 (en) * 1984-03-15 1993-07-08 Norio Nakazawa Variable capacity turbo-supercharger
TW436597B (en) * 1997-12-19 2001-05-28 Exxon Production Research Co Process components, containers, and pipes suitable for containign and transporting cryogenic temperature fluids

Also Published As

Publication number Publication date
EP1966406A2 (de) 2008-09-10
EP1801254A1 (de) 2007-06-27
WO2007071618A2 (de) 2007-06-28
US20080317589A1 (en) 2008-12-25
NO20082884L (no) 2008-06-24
WO2007071618A3 (de) 2007-08-09

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