GB1276059A - Improvements in or relating to shaft bearing arrangements for low-temperature expansion turbines - Google Patents

Improvements in or relating to shaft bearing arrangements for low-temperature expansion turbines

Info

Publication number
GB1276059A
GB1276059A GB36656/70A GB3665670A GB1276059A GB 1276059 A GB1276059 A GB 1276059A GB 36656/70 A GB36656/70 A GB 36656/70A GB 3665670 A GB3665670 A GB 3665670A GB 1276059 A GB1276059 A GB 1276059A
Authority
GB
United Kingdom
Prior art keywords
gas
bearing
turbine
pressure
gas bearing
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
Application number
GB36656/70A
Inventor
Bernhard Schreiber
Hubert Redemann
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of GB1276059A publication Critical patent/GB1276059A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
    • 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
    • F01D25/18—Lubricating arrangements
    • F01D25/22—Lubricating arrangements using working-fluid or other gaseous fluid as lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0005—Light or noble gases
    • F25J1/0007—Helium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
    • F25J1/0035—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work
    • F25J1/0037—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work of a return stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
    • F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0201—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration
    • F25J1/0202—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration in a quasi-closed internal refrigeration loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0261—Details of cold box insulation, housing and internal structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/14—Power generation using energy from the expansion of the refrigerant
    • F25B2400/141—Power generation using energy from the expansion of the refrigerant the extracted power is not recycled back in the refrigerant circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/20—Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/30—Compression of the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1276059 Gas bearing LINDE AG 29 July 1970 [30 July 1969] 36656/70 Heading F2A [Also in Division F1] The shaft of a low-temperature expansion turbine is supported by a gas bearing adjacent the turbine and supplied with gas which is warmer than the gas entering the turbine nozzle ring. In one arrangement, Fig. 3, the rotor 2 of a low temperature turbine is mounted on a vertical shaft 1 supported at its upper end by a gas bearing having dynamic and static section 41, 42 and at its lower end by an oil lubricated bearing (not shown). Warming up gas can be fed to the gas bearing through line 14 and passage 46 in bearing bush 43. A diaphragm valve 47 operated by a mechanism 49 is response to pressure in the gas bearing controls the flow of high pressure gas through a line 48 to bush 43 and thus to the static section 42 and also, through bore 50, to load reducing pistons 51 for the bearing shells 44 of dynamic section 41 so as to render the latter inoperative when conditions are unsuitable. In a modification, Fig. 2, the gas bearing includes a shell 31 mounted so as to be able to tilt and loaded by a spring 32 and also by gas pressure acting on a piston 34 in chamber 33. The gas pressure is controlled by a diaphragm valve 35 in response to the differential pressure between bearing chamber 16 and the clearance space between turbine rotor 2 and nozzle ring 4, the pressure in the clearance space being speed dependent. The bearing supply line 36 is connected to a gas bottle 37 or a refrigeration circuit of the plant. In a further modification (Fig. 1, not shown), the gas bearing is similar to that in Fig. 2 and has tiltable shells (10, 11) supported by a bush (13) held by resilient rings (12) of P.T.F.E. or rubber in the turbine casing (3). The warmer gas exhausting from the gas bearing together with the gas leaking past turbine shaft seal (15) flow downwards towards an oil lubricated bearing (8) to prevent the upward penetration of oil mist from the latter. The oil lubricated bearing (8) acts as a radial and thrust bearing and its static parts are universally mounted on an external ring (20) through compensating links (17) and pairs of diametrically opposite balls (18, 19). The turbine shaft (1) is evacuated. The casing includes heat reflecting screens (24, 25) of aluminium foil. An oil brake (9) is provided to dissipate the turbine power. The turbine may form part of a liquefaction plant for helium or hydrogen, these gases being used in the turbine and the gas bearing.
GB36656/70A 1969-07-30 1970-07-29 Improvements in or relating to shaft bearing arrangements for low-temperature expansion turbines Expired GB1276059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691938831 DE1938831A1 (en) 1969-07-30 1969-07-30 Shaft bearing for an expansion turbine in a cold cycle

Publications (1)

Publication Number Publication Date
GB1276059A true GB1276059A (en) 1972-06-01

Family

ID=5741413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36656/70A Expired GB1276059A (en) 1969-07-30 1970-07-29 Improvements in or relating to shaft bearing arrangements for low-temperature expansion turbines

Country Status (3)

Country Link
CH (1) CH512665A (en)
DE (1) DE1938831A1 (en)
GB (1) GB1276059A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106713U (en) * 1977-02-03 1977-08-13
CN103477174A (en) * 2011-04-08 2013-12-25 川崎重工业株式会社 Liquefier system
CN107917928A (en) * 2017-11-01 2018-04-17 大连理工大学 A kind of dual openings multitubular bundles refrigeration machine Unsteady Heat Transfer test platform
CN111751220A (en) * 2020-06-22 2020-10-09 哈尔滨工业大学 Aerostatic bearing performance calculation method considering fluid-solid coupling
CN113074023A (en) * 2021-04-12 2021-07-06 哈尔滨工业大学 Oil-free lubrication high-power-density zero-steam leakage steam turbine
CN113250763A (en) * 2021-05-26 2021-08-13 中国科学院合肥物质科学研究院 Eddy current braking turbo expander
CN114673569A (en) * 2022-03-31 2022-06-28 北京大臻科技有限公司 Hydrogen turbine expansion device and method based on gas bearing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791646B (en) * 2014-02-24 2016-03-02 大连理工大学 Drainage balanced type top fills embedded air wave refrigerating device
CN103868269B (en) * 2014-03-28 2016-03-02 大连理工大学 A kind of contact seal inversion type air wave refrigerating device
CN109807702A (en) * 2017-11-21 2019-05-28 中国航发常州兰翔机械有限责任公司 The threaded top adapter of one kind and its application method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52106713U (en) * 1977-02-03 1977-08-13
CN103477174A (en) * 2011-04-08 2013-12-25 川崎重工业株式会社 Liquefier system
CN103477174B (en) * 2011-04-08 2015-09-16 川崎重工业株式会社 Liquefaction system
CN107917928A (en) * 2017-11-01 2018-04-17 大连理工大学 A kind of dual openings multitubular bundles refrigeration machine Unsteady Heat Transfer test platform
CN107917928B (en) * 2017-11-01 2024-02-02 大连理工大学 Unsteady heat conduction test platform of double-opening multi-tube-bundle refrigerator
CN111751220A (en) * 2020-06-22 2020-10-09 哈尔滨工业大学 Aerostatic bearing performance calculation method considering fluid-solid coupling
CN111751220B (en) * 2020-06-22 2023-06-02 哈尔滨工业大学 Gas hydrostatic bearing performance calculation method considering fluid-solid coupling
CN113074023A (en) * 2021-04-12 2021-07-06 哈尔滨工业大学 Oil-free lubrication high-power-density zero-steam leakage steam turbine
CN113250763A (en) * 2021-05-26 2021-08-13 中国科学院合肥物质科学研究院 Eddy current braking turbo expander
CN113250763B (en) * 2021-05-26 2024-03-22 中国科学院合肥物质科学研究院 Eddy current braking turbine expander
CN114673569A (en) * 2022-03-31 2022-06-28 北京大臻科技有限公司 Hydrogen turbine expansion device and method based on gas bearing
CN114673569B (en) * 2022-03-31 2024-02-27 北京大臻科技有限公司 Hydrogen turbine expansion device and method based on gas bearing

Also Published As

Publication number Publication date
CH512665A (en) 1971-09-15
DE1938831A1 (en) 1971-02-25

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed