CN107429702A - Compression unit for high pressure service and low pressure service - Google Patents

Compression unit for high pressure service and low pressure service Download PDF

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Publication number
CN107429702A
CN107429702A CN201580068995.8A CN201580068995A CN107429702A CN 107429702 A CN107429702 A CN 107429702A CN 201580068995 A CN201580068995 A CN 201580068995A CN 107429702 A CN107429702 A CN 107429702A
Authority
CN
China
Prior art keywords
driver
impeller
unit
compression unit
cantilever
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.)
Pending
Application number
CN201580068995.8A
Other languages
Chinese (zh)
Inventor
S.布雷夏尼
L.萨索利尼
N.班基
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 SRL
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 SRL filed Critical Nuovo Pignone SRL
Publication of CN107429702A publication Critical patent/CN107429702A/en
Pending legal-status Critical Current

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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

Landscapes

  • 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)

Abstract

A kind of compression unit (1) for being used to supply high pressure service and low pressure service to equipment includes the two driver shaft ends (3 prominent with the remote driver (2), 4) associated single driver (2), first driver shaft end (3) and the second driver shaft end (4), first module (10) is operably connected to the first driver shaft end (3), and second unit (20) is operably connected to the second driver shaft end (4).

Description

Compression unit for high pressure service and low pressure service
Technical field
The present invention relates to a kind of compression unit for being used to supply complete pressure service to equipment (plant), single compression Unit is capable of supply that high pressure service and low pressure service.
Background technology
In processing equipment, in order to supply gases at high pressure and low-pressure gas, be typically provided with some different units so as to Different flow rate (flow rate) is handled under different pressure values.
The major defect of existing technology is the general frame of compression unit and the complexity of construction, and this causes huge set It is standby.
In fact, generally individually unit is used to provide gas to processing equipment, such compression with different pressures value Each in unit includes special driver and associated impeller, which increases the size of population of unit.
The content of the invention
The first embodiment of the present invention is related to the complete compression service for will be made up of gases at high pressure and low-pressure gas It is fed to the single compression unit of processing equipment.
Compression unit is configured to supply high pressure draught and low-pressure air current, with simple framework and reduces the overall big of unit The small and construction of weight, and also there is the efficiency of the raising relative to state of the art.
In order to preferably illustrate the content meant of wording " height " pressure and " low " pressure, hereinafter with reference to the compression according to ANSI Machine flange rating (compressor flanges rating).
As is known in the art, when designing impeller, technology restriction be present.These limitation in one by impeller Peripheral speed represent.
It is known in the art that the impeller with major diameter can handle high flow rate, but utilize the rotating speed reduced and Therefore the compression ratio work of limitation.In order to provide typical value, wording " low " is pressed in this and shown between 150 and 300 Typical range in rated value (rating value), and impeller can be handled can be included in 50,000 and 200,000m3 The flow rate in scope between per hour.
The typical velocity amplitude for handling the impeller of the flow rate is 5,000 to 1,800 rpms, therefore shows directly to join The solution connect.
Wording " height " is pressed in this and shows to be included in typical rated value between 300 and 2500, wherein for the first impeller, Inlet pressure level is between 3 and 50bar.In order to reach very high compression ratio, impeller processing is typically less than 50,000m3Often The low flow rate of hour.
Brief description of the drawings
Other details and specific embodiment are by refer to the attached drawing, wherein：
Fig. 1 is the schematic diagram according to a kind of embodiment of the compression unit of the present invention；
Fig. 2 is the schematic diagram according to the compression unit of the invention of different embodiments.
Embodiment
The following description of exemplary embodiment have references to accompanying drawing.It is described in detail below not limit the present invention.Alternatively, The scope of the present invention is defined by the following claims.
" one embodiment " or " embodiment " mentioned through specification mean together with embodiment description special characteristic, Structure or feature are included at least one embodiment of disclosed theme.Therefore, occur through the various positions of specification Phrase " in one embodiment " or identical embodiment is not necessarily referring to " in embodiment ".In addition, special characteristic, structure Or feature can combine in any suitable manner in one or more embodiments.
The compression unit 1 includes two shaft drive axis protruded in opposite direction with being preferably distal from the driver 2 Hold (the first driver shaft end 3 and the second driver shaft end 4) associated single driver 2.
In order to preferably describe the preferred embodiment of the compression unit according to the present invention, it can be considered that, driver 2 will press Contracting unit is divided into both sides；On side, first module 10 is operably connected to the first driver shaft end 3, and second unit 20 It is operably connected to the second driver shaft end 4.
According to the first preferred embodiment of the present invention, the first module 10 includes impeller 11, and described second is single Member is included in the gear wheel 21 in overall gear formula compressor assembly.
It is further preferred that according to first embodiment, the impeller 11 of the first module 10 is directly to first The cantilever impeller of driver shaft end 3, preferably by means of flange connection or flexible connected.
According to the present invention, cantilever impeller is the leaf for not having on the opposite side relative to driver (one or more) bearing Wheel, therefore all (one or more) bearings of cantilever impeller are all disposed between impeller and driver.
In this case, the impeller 11 of first module is " low " potential source unit：The typical case of the flow rate handled by cantilever impeller Value be about 50,000m3Per hour, wherein inlet pressure level is about 1bar and exit pressure levels are about 2 or 3bar.
On another side, gear wheel 21 connects preferably by means of flange or flexible connected drives to be connected to described second Device shaft end 4.
According to first embodiment shown in Fig. 1, the second unit 20 includes gear wheel 21, and the gear wheel 21 passes through Little gear in typical overall gear formula compressor assembly drives at least one driven shaft 22,23.Preferably, in order to obtain Higher exit pressure levels are obtained, gear wheel 21 includes two or more driven shafts, for example, first driven shaft 22 and second driven shaft 23, it by means respectively of pinion drive is connected to gear wheel 21.
The little gear is toothed wheel, and its diameter having is less than the diameter of gear wheel.Little gear directly engages On gear wheel, the rotation of little gear is produced so as to the rotation of the latter.
The driven shaft 22a, 22b, 23a, it is each in its relative end supporting cantilever impeller in 23b.
According to an embodiment of the present, two driven shafts 22,23 are configured to different rotating speed rotations.
Typical flow rate value for second unit 20 is about 50,000 and 200,000m3Per hour, wherein shell grade (casing rating) changes between ANSI300 to 1500.
According to the first embodiment of compression unit 1 shown in Fig. 1, driver 2 is drivingly connected to first driving The single cantilever impeller 11 of device axle 3.
On the opposite side of compression unit 1, the drive gear wheel 21 of identical driver 2, the gear wheel 21 preferably includes Two driven shafts 22,23, first driven shaft 22 support a pair of first cantilever impeller 22a, 22b, second driven shaft in its end 23 support a pair second cantilever impellers 23a, 23b in its end.
According to Fig. 1 scheme, the first cantilever impeller 22a, 22b and the second cantilever impeller 23a, 23b are fluidly connected, so as to Air-flow passes through the first cantilever impeller 22a, 22b of first driven shaft 22, and then passes through the second cantilever of second driven shaft 23 Impeller, therefore form the first multi-stage compression unit for small flow rate to be compressed to high pressure values.The construction in Fig. 1 by means of Shown in phantom, its hydraulic connecting of representative between impeller is indicated using reference number 40.
According to the second embodiment of the present invention, it is single to be fluidly connected to second for the outlet of the cantilever impeller 11 of first module 10 The entrance of member 20, therefore form the second multi-stage compression unit.The construction represents that it is represented in list by means of dotted line 30 in Fig. 1 Hydraulic connecting between member.
In this configuration, first module 10 provides specific gas flow rate to second unit 20, therefore obtains and can be easily made with height Overall compression than big flow rate compression unit.
According to the unshowned third embodiment of the present invention in the accompanying drawings, first module 10 includes cantilever impeller 11, and this is outstanding Arm impeller 11 is connected to first shaft drive axis 3 by means of gear assembly, and first driver is connected to instead of flange On axle.
According to the fourth embodiment of the present invention shown in fig. 2, first module 10 includes beam type compressor (beam compressor).The beam type compressor can flange be connected to first shaft drive axis 3, or alternatively, beam type compressor can First shaft drive axis 3 is connected to by means of gear assembly.
The shell grade of typical beam type compressor changes to API15000 from ANSI600.
When first module 10 includes beam type compressor, the entrance of beam type compressor can be hydraulically connected to second unit 20 Gear wheel 21 output end.According to the arrangement, first module 10 receives the flow rate of the output end from second unit 20, therefore Being formed allows to reach the 3rd multi-stage compression unit of higher compression ratio.Hydraulic pressure between first module 10 and second unit 20 Connection is represented by means of dotted line 50 in fig. 2.
Therefore solves the defects of puzzlement prior art according to the compression unit of the present invention.
Using one in the result reached according to the compression unit of the present invention reduced using extremely general construction The area occupied of device.

Claims (11)

  1. A kind of 1. compression unit (1) for being used to supply high pressure service and low pressure service to equipment, comprising with being dashed forward away from driver (2) The single driver (2) that the two driver shaft ends (3,4) gone out are associated, the first driver shaft end (3) and the second shaft drive axis Hold (4), first module (10) is directly operably connected to the first driver shaft end (3) and second unit (20) can The second driver shaft end (4) is operatively coupled to, wherein the first module is cantilever impeller, and the second unit (20) be overall gear formula compressor assembly, the overall gear formula compressor assembly include gear wheel (21) and with the gear wheel (21) multiple little gears of engagement, wherein the diameter of the gear wheel (21) is more than the diameter of the little gear.
  2. 2. compression unit (1) according to claim 1, it is characterised in that the cantilever leaf of the first module (10) It is the impeller that the first driver shaft end (3) is connected to by means of gear assembly to take turns (11).
  3. 3. one or more described compression units (1) in preceding claims, it is characterised in that the gear wheel (21) it is connected to by means of flange on the second driver shaft end (4).
  4. 4. one or more described compression units (1) in preceding claims, it is characterised in that overall gear formula pressure Contracting thermomechanical components include at least one driven shaft (22,23).
  5. 5. compression unit (1) according to claim 4, it is characterised in that at least one driven shaft (22,23) Relative end is provided with cantilever impeller (22a, 22b, 23a, 23b).
  6. 6. the compression unit (1) according to claim 4 or 5, it is characterised in that the gear wheel (21) is driven comprising two Axle (22,23), i.e. first driven shaft (22) and second driven shaft (23), the first driven shaft (22) and the second driven shaft (23) each in is provided with a pair of cantilever impellers in its end, is that the first cantilever impeller (22a, 22b) and second are outstanding respectively Arm impeller (23a, 23b).
  7. 7. one or more described compression units (1) in preceding claims, it is characterised in that first cantilever Impeller (22a, 22b) and the second cantilever impeller (23a, 23b) fluidly connect, therefore form the first multi-stage compression unit.
  8. 8. one or more described compression units (1) in preceding claims, it is characterised in that the first module (10) outlet is fluidly connected to the entrance of the second unit (20), therefore forms the second multi-stage compression unit.
  9. 9. one or more described compression units (1) in preceding claims, it is characterised in that the first module (10) entrance is fluidly connected to the outlet of the second unit (20), therefore forms the 3rd multi-stage compression unit.
  10. 10. one or more described compression units (1) in preceding claims, it is characterised in that the driver Shaft end (3,4) is the end of single driver axle.
  11. 11. one or more described compression units (1) in preceding claims, it is characterised in that it is described two from Moving axis (22,23) is configured to different rotating speed rotations.
CN201580068995.8A 2014-12-16 2015-11-30 Compression unit for high pressure service and low pressure service Pending CN107429702A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI20142145 2014-12-16
ITMI2014A002145 2014-12-16
PCT/EP2015/078072 WO2016096386A1 (en) 2014-12-16 2015-11-30 Compression unit for high and low pressure services

Publications (1)

Publication Number Publication Date
CN107429702A true CN107429702A (en) 2017-12-01

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CN201580068995.8A Pending CN107429702A (en) 2014-12-16 2015-11-30 Compression unit for high pressure service and low pressure service

Country Status (6)

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

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CN117905711A (en) * 2024-03-20 2024-04-19 江苏海拓宾未来工业科技集团有限公司 Multi-shaft centrifugal compressor and fault diagnosis method for impeller of multi-shaft centrifugal compressor

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CN117905711A (en) * 2024-03-20 2024-04-19 江苏海拓宾未来工业科技集团有限公司 Multi-shaft centrifugal compressor and fault diagnosis method for impeller of multi-shaft centrifugal compressor

Also Published As

Publication number Publication date
EP3234370B1 (en) 2024-02-21
WO2016096386A1 (en) 2016-06-23
JP2018503766A (en) 2018-02-08
EP3234370A1 (en) 2017-10-25
US20170356451A1 (en) 2017-12-14
DK3234370T3 (en) 2024-04-08

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