WO2014059504A1 - Chambre d'expansion pour conduite de refoulement de compresseur de substitution - Google Patents

Chambre d'expansion pour conduite de refoulement de compresseur de substitution Download PDF

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Publication number
WO2014059504A1
WO2014059504A1 PCT/BR2013/000439 BR2013000439W WO2014059504A1 WO 2014059504 A1 WO2014059504 A1 WO 2014059504A1 BR 2013000439 W BR2013000439 W BR 2013000439W WO 2014059504 A1 WO2014059504 A1 WO 2014059504A1
Authority
WO
WIPO (PCT)
Prior art keywords
expansion chamber
passage structure
barrier
volumes
accordance
Prior art date
Application number
PCT/BR2013/000439
Other languages
English (en)
Inventor
Cristiano STUMPF
Tadeu Tonheiro RODRIGUES
Eduardo Luis GAERTNER
Moacir Pirovano
Douglas NEGRI
Fábio Medeiros de LIMA
Original Assignee
Whirlpool S.A .
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 Whirlpool S.A . filed Critical Whirlpool S.A .
Priority to CN201390000903.9U priority Critical patent/CN204716496U/zh
Publication of WO2014059504A1 publication Critical patent/WO2014059504A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections

Definitions

  • the present invention refers to an expansion chamber for alternative compressor discharge lines, preferably used in refrigeration systems.
  • the presently disclosed expansion chamber into which two volumes are incorporated, further comprises an intermediate tube that due to its design is capable of optimizing attenuation of pulsations of an alternative compressor discharge cycles.
  • compressors comprise devices capable of altering the pressure of a working fluid (which usually circulates in any system, such as, for example, refrigeration system).
  • the pressure of a working fluid is altered through a cyclic and controlled change in the volume of a compression chamber, which is usually defined by a chamber (or cylinder) capable of receiving a working fluid, and by a moving (piston) actuator capable of presenting alternative displacement within said compression chamber.
  • the already existing chambers comprise a type of chamber disposed at the alternative compressor discharge line, preferably arranged within the hermetic housing thereof.
  • the present state of the art is comprised of a wide range of constructions and designs of expansion chambers and among all of said constructions and designs there should be cited those expansion chambers containing two volumes fluidly connected to each other.
  • expansion chambers constituted by two volumes is intended to reaches higher levels of attenuation of discharge pulsation, occupying a physical space similar to the physical space of the expansion chamber comprising a single chamber.
  • volumes of an expansion chamber are defined in one same body comprising in its interior a partition plate.
  • said partition plate further comprises an orifice or a passage tube, this being responsible for connecting the two volumes of the expansion chamber.
  • an inlet tube, a passage tube (or orifice), and an outlet tube of an expansion chamber constituted by two volumes are roughly linearly aligned.
  • Such alignment can be regarded as negative since after all same will define in certain situations (depending on the frequency of pulsations of discharge cycles ou depending on the operational capacity of the compressor) a single virtually continuous tube.
  • Said virtually continuous tube allows for the inlet pulsation to be directly sent to the outlet tube of said expansion chamber constituted by two volumes, thus annulling a major portion of effects which mitigate pulsations of discharge cycles of an alternative compressor.
  • Said US Patents 5,196,654 and 5,545,860 refer to expansion chambers constituted by two distinct volumes connected to each other by a passage tube. Nevertheless (and unlike said simplest models) an inlet tube, a passage tube and an outlet tube of the now analyzed expansion chambers then define a virtually L-arranged tube. Such an alignment can be considered as negative since in the end it presents the drawback that pressure measurement is too near the expansion chamber wall. Besides, the fact that said tubes are arranged in L- form prevents that some configurations for the length of the inlet/outlet tubes are made due to the interference between them. Furthermore, the feature that the tubes are disposed in L- form results in potential charge loss located at the L-curves, in addition to the fact that a virtually continuous tube can be formed.
  • JP Patent 11311179 refers to an expansion chamber also constituted by two distinct volumes which are fluidly connected to each other by a passage tube. Nevertheless, its inlet tube, its passage tube and its outlet tube then define a virtually U-arranged tube. Such alignment can be regarded as negative since after all the acoustic filter may not work due to the possibility that a virtually continuous tube is formed, in addition to the charge loss of two curves, which will increase the thermodynamic losses of the compressor.
  • An object of the present invention is to provide an expansion chamber for alternative compressor discharge lines, which is capable of optimizing attenuation of the discharge cycles by creating barriers or obstacles directly aligned with discharge flow tubes.
  • Another object of the present invention is that said barriers or obstacles are simply produced.
  • the elements constituting the expansion chamber can define barriers or obstacles capable of optimizing attenuation of pulsations of the discharge cycles.
  • Said expansion chamber for alternative compressor discharge line comprises at least two volumes separated from one another by at least an inner plate; said volumes being fluidly connected to each other by at least a passage structure, and they are fluidly connected to the outer ambient by at least a passage structure.
  • said expansion chamber also comprises at least a barrier for nominal discharge flow of the alternative compressor, wherein sai
  • said expansion chamber for the alternative compressor discharge line comprises at least a barrier for nominal flow from the passage structure.
  • Said barrier which can be disposed in the first volume, in the second volume, and in both, can be defined by the inner plate existing between said volumes, or it can also be defined by at least a baffle designed to in the interior of at least one of the volumes.
  • the passage structure of the inner plate comprises a tube, which can be horizontally or obliquely disposed.
  • Figure 1 illustrates a schematic cut of a preferred embodiment of the expansion chamber for alternative compressor discharge lines in accordance with the present invention
  • Figure 2 illustrates a schematic cut of the first optional embodiments of the expansion chamber for alternative compressor discharge lines in accordance with the present invention
  • Figure 3 illustrates a schematic cut of the second optional embodiment of the expansion chamber for alternative compressor discharge lines in accordance with the present invention
  • Figure 4 illustrates a schematic cut of the third optional embodiment of the expansion chamber for alternative compressor discharge lines in accordance with the present invention
  • Figure 5 illustrates a schematic cut of the fourth optional embodiment of the expansion chamber for alternative compression discharge lines in accordance with the present invention.
  • Figure 6 illustrates a schematic cut of the fifth optional embodiment of the expansion chamber for the expansion chamber for alternative compressor discharge lines rn aecbtd- ance with the present invention.
  • an expansion chamber can be considered as a set of "volumes" arranged in series (or eventually in parallel) in a discharge line in order to attenuate discharge pulsations of the alternative compressors.
  • the present invention aims at optimizing dynamics of fluids travelling within an expansion chamber so as to further attenuate noise intrinsic to a compressor functioning.
  • such an optimization is not intended to alter arrangement, format or space of the "volumes" of said expansion chamber but rather creating in a simplified form at least a barrier to nominal discharge flow of the compressor which flows trough said "volumes" of the expansion chamber. It is worth mentioning that substantial alignment of said barrier(s) with at least a passage structure of the chamber is required.
  • Figs. 1 to 6 illustrate preferred embodiments of the present invention.
  • a barrier B can be defined at any inner surface of the expansion chamber, wherein the only reason for the definition of a barrier B resides in the fact that same should be substantially aligned with at least a passage structure, this being either the inlet of the expansion chamber itself or the fluid communication between the volumes of the expansion chamber.
  • the embodiments described in detail below are intended to provide means capable of generating at least a barrier B for the nominal discharge flow FN, thereby resulting in an outlet discharge flow FS with substantially attenuated pulsations and noise.
  • the expansion chamber in accordance with the present invention is formed of a first volume 1 and a second volume 2, wherein both is divided by an inner plate 3.
  • the chamber format is not the crux of the present invention, it is worth mentioning that it can be essentially cylindrical, cubic, or further any prismatic format defined in accordance with each design.
  • the inner plate 3 can comprise a substantially discoid structure, substantially quadrangular, or further any format capable of delimiting the volume of the expansion chamber into at least two volumes.
  • Volume 1 comprises a passage structure 11 that is intended for the entry of the nominal discharge flow FN
  • volume 2 comprises a passage structure 21 intended for the exit of the outlet discharge flow FS.
  • the inner plate 3 in turn comprises a passage structure 31 (which can comprise a tube, an orifice, a channel, and the like) intended for fluid communication between volumes 1 and 2.
  • two barriers B are then defined, one at the inner plate 3 (specifically in the portion directly aligned with the passage structure 1 1 ) and the other at the body that defines the volume 2 (specifically in the portion directly aligned with the passage structure 31 ).
  • a nominal discharge flow FN undergoes a fir attenuation of pulsation in the barrier B defined at the inner plate 3.
  • Said nominal discharge flow FN when already altered, goes to the second volume 2 through the passage structure 31 of the inner plate 3, and designated passing flow FP.
  • Said passing flow FP then undergoes further attenuation of pulsation in the barrier B defined in the body that defines said volume 2.
  • the passage structure 31 of the inner plate is obliquely disposed and as a result same is not aligned with the passage structures 11 and 12.
  • one barrier B is defined on a baffle 4 that in said embodiment is disposed in the second volume 2 but it may also be disposed in the first volume 1 , or further in both volumes 1 and 2 of the expansion chamber.
  • said bafflje 4 is a wall designed from the inner surface of the bbdy that defines one of the volumes of the expansion chamber.
  • said baffle 4 can also be a wall designed from any of the surfaces of inner plate 3 (this optional arrangement is not illustrated but can be easily conceived from the context of the present invention).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

La présente invention concerne une chambre d'expansion pour des conduites de refoulement de compresseur de substitution servant de préférence dans des systèmes de réfrigération. Ladite chambre d'expansion comporte au moins deux volumes (1, 2) séparés l'un de l'autre par au moins un plateau intérieur (3) et raccordés l'un par rapport à l'autre de manière fluidique par au moins une structure de passage (31 ), et au moins une barrière (B) pour l'écoulement de décharge nominal (FN) du compresseur de substitution. Généralement, ladite barrière (B) est en mesure d'optimaliser l'atténuation des pulsations des cycles de décharge.
PCT/BR2013/000439 2012-10-18 2013-09-24 Chambre d'expansion pour conduite de refoulement de compresseur de substitution WO2014059504A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201390000903.9U CN204716496U (zh) 2012-10-18 2013-09-24 用于交替式压缩机的排出管路的膨胀室

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102012026728A BR102012026728A2 (pt) 2012-10-18 2012-10-18 Câmara de expansão para linha de descarga de compressor alternativo
BRBR1020120267284 2012-10-18

Publications (1)

Publication Number Publication Date
WO2014059504A1 true WO2014059504A1 (fr) 2014-04-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2013/000439 WO2014059504A1 (fr) 2012-10-18 2013-09-24 Chambre d'expansion pour conduite de refoulement de compresseur de substitution

Country Status (3)

Country Link
CN (1) CN204716496U (fr)
BR (1) BR102012026728A2 (fr)
WO (1) WO2014059504A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105715327A (zh) * 2016-04-07 2016-06-29 北京化工大学 对喷式气流脉动衰减器
CN107120288A (zh) * 2017-04-28 2017-09-01 麦克维尔空调制冷(武汉)有限公司 一种用于螺杆式机组的排气消声器
EP3217012A1 (fr) * 2016-03-11 2017-09-13 Whirlpool S.A. Filtre acoustique de décharge, procédé de fabrication de filtre acoustique de décharge et compresseur hermétique
EP3336355A1 (fr) * 2016-12-19 2018-06-20 Whirlpool S.A. Compresseur hermétique
CN109996959A (zh) * 2017-03-24 2019-07-09 三菱重工制冷空调系统株式会社 消音器以及空气调节器
WO2020223293A1 (fr) 2019-04-29 2020-11-05 Gast Manufacturing, Inc. Dispositif de réduction sonore pour pompes et compresseurs à piston oscillant

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106286222B (zh) * 2016-10-27 2019-04-26 黄石东贝电器股份有限公司 排气消音器以及制冷压缩机
BR102016029873A2 (pt) * 2016-12-19 2018-07-17 Whirlpool S.A. compressor hermético
BR102018015458B1 (pt) * 2018-07-27 2021-12-21 Whirlpool S.A. Tubo condutor de fluido
CN109441777A (zh) * 2018-12-11 2019-03-08 珠海格力节能环保制冷技术研究中心有限公司 气缸座结构及具有其的压缩机
CN110145456A (zh) * 2019-05-31 2019-08-20 芜湖欧宝机电有限公司 压缩机排气过滤器及其消声方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB771106A (en) * 1954-11-01 1957-03-27 Harald Anero Improvements relating to engine exhaust silencers
US4111278A (en) 1977-02-09 1978-09-05 Copeland Corporation Discharge muffler
US5196654A (en) 1991-03-19 1993-03-23 Bristol Compressors Compressor discharge muffler construction
US5545860A (en) 1995-02-21 1996-08-13 Ford Motor Company Discharge muffler for an automotive compressor and method for making same
JPH11311179A (ja) 1998-04-28 1999-11-09 Matsushita Refrig Co Ltd 密閉型電動圧縮機
WO2009079727A1 (fr) * 2007-12-26 2009-07-02 Whirlpool S.A. Système d'atténuation des pulsations dans le refoulement des gaz d'un compresseur frigorifique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB771106A (en) * 1954-11-01 1957-03-27 Harald Anero Improvements relating to engine exhaust silencers
US4111278A (en) 1977-02-09 1978-09-05 Copeland Corporation Discharge muffler
US5196654A (en) 1991-03-19 1993-03-23 Bristol Compressors Compressor discharge muffler construction
US5545860A (en) 1995-02-21 1996-08-13 Ford Motor Company Discharge muffler for an automotive compressor and method for making same
JPH11311179A (ja) 1998-04-28 1999-11-09 Matsushita Refrig Co Ltd 密閉型電動圧縮機
WO2009079727A1 (fr) * 2007-12-26 2009-07-02 Whirlpool S.A. Système d'atténuation des pulsations dans le refoulement des gaz d'un compresseur frigorifique

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3217012A1 (fr) * 2016-03-11 2017-09-13 Whirlpool S.A. Filtre acoustique de décharge, procédé de fabrication de filtre acoustique de décharge et compresseur hermétique
CN105715327A (zh) * 2016-04-07 2016-06-29 北京化工大学 对喷式气流脉动衰减器
EP3336355A1 (fr) * 2016-12-19 2018-06-20 Whirlpool S.A. Compresseur hermétique
CN109996959A (zh) * 2017-03-24 2019-07-09 三菱重工制冷空调系统株式会社 消音器以及空气调节器
CN107120288A (zh) * 2017-04-28 2017-09-01 麦克维尔空调制冷(武汉)有限公司 一种用于螺杆式机组的排气消声器
CN107120288B (zh) * 2017-04-28 2022-05-20 麦克维尔空调制冷(武汉)有限公司 一种用于螺杆式机组的排气消声器
WO2020223293A1 (fr) 2019-04-29 2020-11-05 Gast Manufacturing, Inc. Dispositif de réduction sonore pour pompes et compresseurs à piston oscillant
EP3963207A4 (fr) * 2019-04-29 2023-04-19 Gast Manufacturing, Inc. Dispositif de réduction sonore pour pompes et compresseurs à piston oscillant

Also Published As

Publication number Publication date
CN204716496U (zh) 2015-10-21
BR102012026728A2 (pt) 2014-08-26

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