EP3234370B1 - Compression unit for high and low pressure services - Google Patents

Compression unit for high and low pressure services Download PDF

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Publication number
EP3234370B1
EP3234370B1 EP15801858.0A EP15801858A EP3234370B1 EP 3234370 B1 EP3234370 B1 EP 3234370B1 EP 15801858 A EP15801858 A EP 15801858A EP 3234370 B1 EP3234370 B1 EP 3234370B1
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EP
European Patent Office
Prior art keywords
unit
compression unit
driver
shaft
overhung
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
EP15801858.0A
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German (de)
English (en)
French (fr)
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EP3234370A1 (en
Inventor
Stefano Bresciani
Lorenza Sassolini
Nicola Banchi
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
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Nuovo Pignone Technologie SRL
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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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04018—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of main feed air
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04024—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of purified feed air, so-called boosted air
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • F25J3/04145—Mechanically coupling of different compressors of the air fractionation process to the same driver(s)
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04163—Hot end purification of the feed air
    • F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
    • F25J3/04175—Hot end purification of the feed air by adsorption of the impurities at a pressure of substantially more than the highest pressure column
    • 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

Definitions

  • the present invention relates to a compression unit for supplying a complete pressure service to a plant, the single compression unit being capable of supplying high and low pressure services.
  • EP 2 902 737 A2 discloses a compression arrangement in which a first compression stage is driven on one end of a driver while an integrally geared centrifugal compressor is also provided.
  • CN 102 979 751 A discloses a single-shaft plusing multiple-shaft type carbon dioxide centrifugal compressor unit.
  • a main drawback of the prior art is the complexity of the overall architecture and configuration of the compression units, this leading to bulky apparatus.
  • each of such compression units comprising a dedicated driver and associated impellers which increase the overall dimensions of the units.
  • a first embodiment of the present invention relates to a single compression unit for supplying a complete compression service consisting of high and low pressure gas to a process plant.
  • the compression unit is configured to supply high and low pressure gas flow with a simple architecture and with a configuration which reduces overall dimensions and weight of the unit, and also has an increased efficiency with respect to the state of the art.
  • impellers having a large diameter can process a high flow rate but work with reduced rotational speed and, therefore, a limited compression ratio.
  • the term "low" pressure here indicates rating values within a typical range comprised between 150 and 300, while the impeller can process a flow rate which could be comprised in a range between 50.000 and 200.000 m 3 per hour.
  • a typical speed value of an impeller processing said flow rates is 5.000 to 1.800 rounds per minute thus indicated for a direct coupled solution.
  • the term "high" pressure here indicates typical rating values comprised between 300 and 2500, with an inlet pressure value between 3 and 50 bar for the first impeller.
  • the impeller processes low flow rates, typically less than 50.000 m 3 per hour.
  • Such compression unit 1 comprises a single driver 2 associated with two driver shaft-ends projecting apart from said driver 2 along opposite directions, a first driver shaft end 3 and a second driver shaft end 4.
  • the driver 2 divides the compression unit into two sides; on one side, a first unit 10 is operatively connected to the first driver shaft-end 3, while a second unit 20 is operatively connected to the second driver shaft-end 4.
  • Said first unit 10 comprises an impeller 11, and said second unit comprises a bull gear 21 in an integrally geared-compressor arrangement.
  • said impeller 11 of said first unit 10 is an overhung impeller directly connected to the first driver shaft-end 3, by means of a flexible coupling.
  • an overhung impeller is an impeller having no bearing/s on the opposite side with respect to the driver, thus all bearing/s of the overhang impeller are arranged between the impeller and the driver.
  • the impeller 11 of the first unit is the "low" pressure source unit: typical values of flow rate processed by the overhung impeller are about 50.000 m 3 per hour, with an inlet pressure value of around 1 bar and an outlet pressure value of about 2 or 3 bar.
  • the bull gear 21 is connected by means of a flexible coupling, to said second driver shaft-end 4.
  • said second unit 20 comprises the bull gear 21 which drives at least one driven shaft 22, 23 through pinions in a typical integrally geared-compressor arrangement.
  • the bull gear 21 comprises two or more driven shafts, for example a first driven shaft 22 and a second driven shaft 23, which are drivingly connected to the bull gear 21 by means of respectively pinions.
  • Said pinions are teethed wheels having a diameter smaller than the diameter of the bull gear.
  • the pinions are engaged directly on the bull gear so that the rotation of the latter produces the rotation of pinions.
  • Each of said driven shafts supports at its opposite ends an overhung impeller 22a, 22b, 23a, 23b.
  • the two driven shafts 22, 23 are configured to rotate at different rotary speed.
  • Typical flow rate values for the second unit 20 are about 50.000 and 200.000 m 3 per hour, with casing rating varying between ANSI 300 and 1500.
  • the driver 2 drives the single overhung impeller 11 connected to said first driver shaft 3.
  • the same driver 2 drives the bull gear 21 which comprises preferably two driven shafts 22, 23, the first driven shaft 22 supports at its ends a couple of first overhung impellers 22a, 22b, the second driven shaft 23 supports at its ends a couple of second overhung impellers 23a, 23b.
  • the first overhung impellers 22a, 22b and the second overhung impellers 23a, 23b are fluidly connected so that the gas flow passes through the first overhung impellers 22a, 22b of the first driven shaft 22 and then through the second overhung impellers of the second driven shaft 23, thus forming a second multi stage compression unit for compressing a small flow rate up to high pressure values.
  • This configuration is illustrated in Figure 1 by means of dashed lines indicated with the reference number 40 which represent the hydraulic connection between the impellers.
  • the outlet of the overhung impeller 11 of the first unit 10 is fluidly connected to the inlet of the second unit 20, thus forming a another multi stage compression unit.
  • This configuration is represented in Figure 1 by means of dashed line 30 which represent the hydraulic connection between the units.
  • the first unit 10 provides the gas flow rate to the second unit 20 thus obtaining a compression unit apt to elaborate large flow rates with an high overall compression rate.
  • the first unit 10 comprises an overhung impeller 11 which is connected to said first driver shaft 3 by means of a gear arrangement, instead that flanged to said first driver shaft.
  • the first unit 10 comprises a beam compressor.
  • Typical beam compressor casing rating varies from ANSI 600 to API 15000.
  • the inlet of the beam compressor is hydraulically connected to the outlet of the second unit 20.
  • the first unit 10 receives the flow rate coming from the output of the second unit 20, thus forming a first multi stage compression unit allowing to reach higher compression rates.
  • the hydraulic connection between the first 10 and the second 20 unit is represented in Figure 2 by means of the dashed line 50.
  • the compression unit according to the present invention therefore solves the drawbacks afflicting the prior art.
  • One of the results achieved with the compression unit according to the present invention is to reduce the footprint of the apparatus, with an extremely versatile configuration.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP15801858.0A 2014-12-16 2015-11-30 Compression unit for high and low pressure services Active EP3234370B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20142145 2014-12-16
PCT/EP2015/078072 WO2016096386A1 (en) 2014-12-16 2015-11-30 Compression unit for high and low pressure services

Publications (2)

Publication Number Publication Date
EP3234370A1 EP3234370A1 (en) 2017-10-25
EP3234370B1 true EP3234370B1 (en) 2024-02-21

Family

ID=52574277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15801858.0A Active EP3234370B1 (en) 2014-12-16 2015-11-30 Compression unit for high and low pressure services

Country Status (6)

Country Link
US (1) US20170356451A1 (ja)
EP (1) EP3234370B1 (ja)
JP (1) JP2018503766A (ja)
CN (1) CN107429702A (ja)
DK (1) DK3234370T3 (ja)
WO (1) WO2016096386A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800000620A1 (it) * 2018-01-08 2019-07-08 Nuovo Pignone Tecnologie Srl Impianto di produzione di ammoniaca
EP3617519A1 (de) * 2018-08-27 2020-03-04 Siemens Aktiengesellschaft Radialverdichterrotor, radialverdichter, getriebeverdichter
CN117905711A (zh) * 2024-03-20 2024-04-19 江苏海拓宾未来工业科技集团有限公司 一种多轴离心压缩机及其叶轮的故障诊断方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809493A (en) * 1970-06-08 1974-05-07 Carrier Corp Interchangeable compressor drive
CN102979751A (zh) * 2012-09-25 2013-03-20 西安交大赛尔机泵成套设备有限责任公司 一种单轴式加多轴式二氧化碳离心压缩机组

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202295A (en) * 1922-08-12 1924-06-05 Bbc Brown Boveri & Cie Improvements in multi-stage centrifugal compressors
CA2058395A1 (en) * 1991-12-23 1993-06-24 Clayton Bear Axial inlet beam-type compressor
DE4416497C1 (de) * 1994-05-10 1995-01-12 Gutehoffnungshuette Man Getriebe-Mehrwellenturbokompressor und Getriebe-Mehrwellenradialexpander
JP3457828B2 (ja) * 1997-03-05 2003-10-20 三菱重工業株式会社 コンプレッサ及びガスエキスパンダ装置
EP2083172A1 (en) * 2008-01-22 2009-07-29 Siemens Aktiengesellschaft Multi-body compressor train
CN101435428B (zh) * 2008-12-22 2010-11-03 重庆朝阳气体有限公司 高低压运行双模式双缸离心式氧压机
IT1399171B1 (it) * 2009-07-10 2013-04-11 Nuovo Pignone Spa Unita' di compressione ad alta pressione per fluidi di processo di impianti industriali e relativo metodo di funzionamento
US20110097225A1 (en) * 2009-10-28 2011-04-28 Freund Sebastian W Air compression and expansion system with single shaft compressor and turbine arrangement
US20150211539A1 (en) * 2014-01-24 2015-07-30 Air Products And Chemicals, Inc. Systems and methods for compressing air

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809493A (en) * 1970-06-08 1974-05-07 Carrier Corp Interchangeable compressor drive
CN102979751A (zh) * 2012-09-25 2013-03-20 西安交大赛尔机泵成套设备有限责任公司 一种单轴式加多轴式二氧化碳离心压缩机组

Also Published As

Publication number Publication date
EP3234370A1 (en) 2017-10-25
US20170356451A1 (en) 2017-12-14
WO2016096386A1 (en) 2016-06-23
JP2018503766A (ja) 2018-02-08
DK3234370T3 (da) 2024-04-08
CN107429702A (zh) 2017-12-01

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