EP2452075A1 - Carter de compresseur de gaz et système comprenant ledit carter - Google Patents

Carter de compresseur de gaz et système comprenant ledit carter

Info

Publication number
EP2452075A1
EP2452075A1 EP10732922A EP10732922A EP2452075A1 EP 2452075 A1 EP2452075 A1 EP 2452075A1 EP 10732922 A EP10732922 A EP 10732922A EP 10732922 A EP10732922 A EP 10732922A EP 2452075 A1 EP2452075 A1 EP 2452075A1
Authority
EP
European Patent Office
Prior art keywords
casing
channel
gas compressor
cooling medium
wall
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.)
Withdrawn
Application number
EP10732922A
Other languages
German (de)
English (en)
Inventor
Mark Van Aarsen
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP10732922A priority Critical patent/EP2452075A1/fr
Publication of EP2452075A1 publication Critical patent/EP2452075A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0686—Units comprising pumps and their driving means the pump being electrically driven specially adapted for submerged use
    • 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
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/058—Bearings magnetic; electromagnetic

Definitions

  • a gas compressor casing and a system comprising the casing The present invention relates to gas compressors
  • Gas compression systems are used in a wide variety of
  • Gas compressors for example centrifugal gas compressors are usually driven by electric motors that are normally a
  • compressors are designed to have an external cooling mechanism arranged outside the gas compressor. This involves external piping which carries the cooling medium, which is generally the comparatively cooled hydrocarbon gas, intended to be
  • the said object is achieved by providing gas compressor casing according to claim 1 and by a system according to claim 4 and a method according to claim 11.
  • the underlying idea is to have a gas compressor casing having at least one channel to carry a cooling medium. This channel is enclosed within an inner surface and an outer surface of a wall of the gas compressor casing. The channel is along the direction of the wall.
  • the gas compressor casing has at least one inlet in the casing, extending to said channel to receive the cooling medium from the gas compressor and at least one outlet in the casing, extending to said channel, to let the cooling medium enter different parts in the gas compressor especially the hot regions of the gas compressor.
  • the channel is directed parallel to the inner surface and/or the outer surface of the wall of the gas compressor casing. This ensures that the cooling medium has a smooth flow inside the wall of the casing and also the design will ensure to have an equal pressure distribution across the wall of the casing.
  • the casing furthermore
  • the cooling medium adapted to flow through the channel in the casing is a gas provided from a pressurized gas supply, which needs to be compressed by the gas compressor.
  • the cooling medium is taken through the inlet from an initial stage of an impeller discharge for circulation in the
  • the solution is to use the hydrocarbon gas itself as the cooling medium. Since the gas is taken for the cooling process at a very early stage of the compression it would be much cooler and would have enough pressure to circulate through the channel.
  • the channel is adapted to provide the cooling medium for cooling the motor
  • the casing is adapted to be used in a compressor having a compressor module and the motor, which shares a common rotor shaft. This enables the casing to be used in this type of a specific gas compressor design .
  • the at least one channel in the gas compressor casing is provided by drilling.
  • the at least one channel in the gas compressor casing is provided by casting.
  • FIG 1 illustrates a diagram of a compressor casing according to an embodiment of the invention
  • FIG 2 illustrates a diagram of a system for compressing gas along with a casing according to an embodiment of the
  • FIG 3 illustrates a casing split in the compressor casing according to an embodiment of the invention
  • FIG 4 illustrates a diagram showing a channel made in a portion of a casing by drilling.
  • hermitically sealed gas compressor even though the idea could be extended to other type of gas compressors.
  • FIG 1 illustrates a diagram of a casing 2, of a gas
  • the casing 2 for gas compressor 100 comprises a channel 4 to carry a cooling medium 6.
  • the cooling medium 6, which is adapted to flow through the channel 4 in the casing 2 is a gas provided from a pressurized gas supply 208 as shown in FIG 2, which needs to be compressed by the gas compressor 100.
  • the channel 4 is enclosed within an inner surface 8 and an outer surface 10 of a wall 12 of the casing 2 of the gas compressor 100; wherein said channel 4 is along the direction of the wall 12.
  • the casing 2 further comprises at least one inlet 14 extending to the channel 4 to receive the cooling medium 6 from the gas compressor 100.
  • the casing 2 also has at least one outlet 16, extending to said channel 4, to let the cooling medium 6 enter hot regions of the gas compressor 100 from the channel 4.
  • FIG 2 illustrates a block diagram of a system 200 for
  • the system 200 comprises a casing 2, a compressor module 202 having a rotor 204 and a motor 206 to drive the rotor 204 of the compressor module 202.
  • the cooling medium 6 is taken through the inlet 14 from an initial discharge stage of an impeller 210 for circulation in the channel 4.
  • the channel 4 is adapted to provide the cooling medium 6 for cooling the hot regions in the gas compressor 100.
  • the gas compressor 100 has a common rotor shaft 220 for the compressor module 202 and the motor 206.
  • the gas compressor having the compressor module 202 and the motor 206, sharing the common shaft 220 can be mounted vertically or horizontally.
  • compressor 100 includes close clearance gaps (216, 218) in the gas compressor 100. All close clearance gaps in the gas compressor 100 need cooling. Due to the high density of the high pressure gas and the high velocity of the high speed running shaft during the compressor operation, the heat generated is significant. This needs to be cooled. There could be close clearance gaps in the magnetic bearings 212 and 214. Practically this means close clearance gaps in the magnetic bearings i.e. between the outer diameter of the rotating shaft sleeve and the inner diameter of the bearing stator, which is gap 216 as shown for bearing 212, and in the main motor i.e. between the outer diameter of the rotor shaft 220 and inner diameter of the stator 222, which is the gap 218.
  • the channel 4 could be further extended, if needed using piping to supply the cooling medium to the hot regions or hot parts inside the gas compressor 100.
  • the cooling medium 6, which is now hot, is driven back to the suction nozzle 224 of the gas compressor 100.
  • a discharge nozzle 226 is used by the system 200 to supply the compressed hydrocarbon gas for further practical use for other associated systems.
  • FIG 3 illustrates a casing split 300 of the compressor casing according to an embodiment of the invention.
  • the casing 2 may further comprise at least one additional channel 302 to carry the cooling medium 6.
  • the additional channel 302 could be arranged parallel to the original channel 4.
  • the channel 4 along with the additional channel 302 returns the cooling medium 6 back to the gas compressor 100. This enables to have a fresh intake of the cooling medium into the channel 4 or/and the additional channel 302 for cooling the hot
  • Subsea environment equipment design shall target the highest level of reliability since maintenance costs are extremely high, especially for heavy equipment at deeper water.
  • One of the risks here is leakage of hydrocarbons to the seawater environment or vice versa i.e. sea water ingress into the compressor system. Such leakages could result in equipment failure or severe HSE danger.
  • casing splits 308 dedicated axial sealing elements could be used. Individual sealing element 304 could be used in the case of single channel and combined sealing element 306 in case of parallel channels.
  • a method of manufacturing a casing 2 comprises of providing a channel 4 in a wall 12 of the casing 2 and then providing at least one inlet 14 in the wall 12 of the casing 2, which extends to said channel 4, to receive a cooling medium 6 from a gas compressor 100.
  • the method of manufacturing also provides at least one outlet 16 in the wall 12 of the casing 2, which extends to said channel 4, to let the cooling medium 6 enter the gas compressor 100 from the channel 4.
  • the channel 4 in the wall 12, the at least one inlet 14 and the at least one outlet 16 of the casing 2 of the gas compressor 100 is provided by drilling or casting. During drilling, there is possibility that openings are created in the outer surface of the wall 12. Welding is performed to seal an opening created during drilling in the outer surface 10 of the wall 12.
  • Channels with required dimensions could be made in the casing 2 based on the cooling needs and also based on the thickness of the wall 12 of the casing 2.
  • FIG 4 shows a channel 402, made in a portion 400 of the casing 2.
  • a bore could be made from each of the surfaces 404, 406 and 408 to intersect at particular
  • the present invention introduces a casing 2 of the gas compressor 100 having at least one channel 4 to carry a cooling medium 6.
  • This channel 4 is enclosed within an inner surface 8 and an outer surface 10 of a wall 12 of the casing 2 and is in the direction of the wall 12.
  • the casing 2 has at least one inlet 14 in the casing 2, extending to said channel 4 to receive the cooling medium 6 from the gas compressor 100 and at least one outlet 16 in the casing 2, extending to said channel 4, to let the cooling medium 6 enter hot regions of the gas compressor from the channel.

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

La présente invention a trait à un agencement intégré fiable permettant de refroidir un système de compresseur. Ledit agencement est conçu au moyen d’un modèle de carter, lequel carter (2) destiné à un compresseur de gaz (100) comprend un canal (4) permettant de transporter un agent de refroidissement (6), ledit canal (4) étant enfermé à l’intérieur d’une surface intérieure (8) et d’une surface extérieure (10) d’une paroi (12) du carter (2) du compresseur de gaz (100), lequel canal (4) est disposé le long de la direction de la paroi (12). Le carter (2) est équipé au moins d’un orifice d’entrée (14), s’étendant jusqu’audit canal (4) afin de recevoir l’agent de refroidissement (6) provenant du compresseur de gaz (100) et au moins d’un orifice de sortie (16) situé dans le carter (2), s’étendant jusqu’audit canal (4), afin de laisser entrer l’agent de refroidissement (6) dans des régions chaudes du compresseur de gaz (100) à partir du canal (4).
EP10732922A 2009-07-08 2010-07-08 Carter de compresseur de gaz et système comprenant ledit carter Withdrawn EP2452075A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10732922A EP2452075A1 (fr) 2009-07-08 2010-07-08 Carter de compresseur de gaz et système comprenant ledit carter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09008922A EP2273130A1 (fr) 2009-07-08 2009-07-08 Boîtier de compresseur de gaz et système comportant le boîtier
PCT/EP2010/059806 WO2011003972A1 (fr) 2009-07-08 2010-07-08 Carter de compresseur de gaz et système comprenant ledit carter
EP10732922A EP2452075A1 (fr) 2009-07-08 2010-07-08 Carter de compresseur de gaz et système comprenant ledit carter

Publications (1)

Publication Number Publication Date
EP2452075A1 true EP2452075A1 (fr) 2012-05-16

Family

ID=41398931

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09008922A Withdrawn EP2273130A1 (fr) 2009-07-08 2009-07-08 Boîtier de compresseur de gaz et système comportant le boîtier
EP10732922A Withdrawn EP2452075A1 (fr) 2009-07-08 2010-07-08 Carter de compresseur de gaz et système comprenant ledit carter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09008922A Withdrawn EP2273130A1 (fr) 2009-07-08 2009-07-08 Boîtier de compresseur de gaz et système comportant le boîtier

Country Status (2)

Country Link
EP (2) EP2273130A1 (fr)
WO (1) WO2011003972A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246606A (zh) * 2016-09-19 2016-12-21 珠海格力电器股份有限公司 压缩机及空调器
FR3072428B1 (fr) * 2017-10-16 2019-10-11 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif et procede de compression et machine de refrigeration
FR3072429B1 (fr) * 2017-10-16 2020-06-19 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif et procede de compression

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR941756A (fr) * 1941-06-23 1949-01-20 Pompe à deux aubages avec refoulement axial
DE915137C (de) * 1951-10-14 1954-07-15 Hermann Wenger Luftgekuehlter Axialverdichter
GB877078A (en) * 1959-02-26 1961-09-13 Svenska Rotor Maskiner Ab Improvements in or relating to rotary machines of the intermeshing screw type
EP1321680A3 (fr) * 2001-12-22 2003-12-10 Miscel Oy Turbomachine
US6997686B2 (en) * 2002-12-19 2006-02-14 R & D Dynamics Corporation Motor driven two-stage centrifugal air-conditioning compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011003972A1 *

Also Published As

Publication number Publication date
WO2011003972A1 (fr) 2011-01-13
EP2273130A1 (fr) 2011-01-12

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