EP2638338B1 - Accumulateur et dispositif de réfrigération dans lequel l'accumulateur est utilisé - Google Patents

Accumulateur et dispositif de réfrigération dans lequel l'accumulateur est utilisé Download PDF

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Publication number
EP2638338B1
EP2638338B1 EP11779402.4A EP11779402A EP2638338B1 EP 2638338 B1 EP2638338 B1 EP 2638338B1 EP 11779402 A EP11779402 A EP 11779402A EP 2638338 B1 EP2638338 B1 EP 2638338B1
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EP
European Patent Office
Prior art keywords
accumulator
refrigerant
opening
disposed
protrusion
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.)
Not-in-force
Application number
EP11779402.4A
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German (de)
English (en)
Other versions
EP2638338A1 (fr
Inventor
Aydin Celik
Husnu Kerpicci
Omer Unal
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP2638338A1 publication Critical patent/EP2638338A1/fr
Application granted granted Critical
Publication of EP2638338B1 publication Critical patent/EP2638338B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators

Definitions

  • the present invention relates to an accumulator, which is suitable for using in a cooling device and whereof the effectiveness of the separation of the refrigerant in the liquid phase and the refrigerant in the gas phase from each other is increased, and to a cooling device wherein the accumulator is used.
  • Cooling devices comprise a compressor, a condenser, an expansion member, an evaporator and an accumulator between the evaporator and the compressor. By means of these members, the refrigeration steps of the refrigeration cycle are realized.
  • the refrigerant which continuously flows in the refrigeration cycle, flows in the two-phase state in some areas.
  • the refrigerant in the liquid phase and the refrigerant in the gas phase are dispersed within each other. In most stages of the refrigeration cycle, these two phases move together, and the amount of the refrigerant in the liquid phase entering the evaporator and the amount of the refrigerant in the gas phase entering the compressor are desired to be increased. Entering of the refrigerant in the liquid phase into the compressor adversely affects the efficiency of the cooling device. Similarly, entering of the refrigerant in the gas phase into the evaporator adversely affects the refrigeration efficiency.
  • Accumulators are used in cooling devices in order to increase the effectiveness of the separation of the refrigerant in the liquid phase and the refrigerant in the gas phase, which flow together and one over the other in the refrigeration cycle, from each other, and hence in order to increase the refrigeration effectiveness and to accumulate the large amount of refrigerant in the liquid phase.
  • German Patent No. DE19502996 an accumulator, which is located at the evaporator outlet and the compressor inlet and bent towards the inlet channel side wall, is described.
  • the aim of the present invention is the realization of an accumulator, whereof the effectiveness of the separation of the refrigerant in the liquid phase and the refrigerant in the gas phase from each other is increased and a cooling device wherein the said accumulator is used.
  • the accumulator which is used in the separation of the refrigerant, that is in liquid and gas phases, into the liquid and gas phases, comprises a body, at least an inlet and at least an outlet through which the refrigerant exits the body.
  • the accumulator of the present invention comprises a tube having at least one opening which extends from the inlet towards the inside of the body, faces the side walls of the body and provides the refrigerant to enter the body and at least one protrusion disposed on the side wall of the body in the vicinity of the opening level or at the same level with the opening in the vertical axis so as to face the opening extending towards the inside of the body.
  • the opening and the protrusion are very closely positioned almost oppositely without contacting each other such that a space is left therebetween, and they are situated almost at the same level with respect to each other or the opening is situated in the vicinity of the protrusion level.
  • the tube which delivers refrigerant from the inlet on the base of the body towards the inside of the body, is bent in the portion wherein the opening is disposed so as to extend towards the side wall of the body or is disposed in the body with a certain inclination with respect to the vertical axis. While the refrigerant exiting the opening impacts the protrusion and the refrigerant in the liquid phase proceeds to the base of the body with the effect of gravity, the refrigerant in the gas phase proceeds to the opening disposed on the ceiling of the body.
  • the protrusion provides a surface area to which the liquid droplets on the body side wall cling. Thus, a greater amount of refrigerant is separated into the liquid and gas phases.
  • the protrusion is positioned in the vertical axis so as to face the opening from just above the level of the opening.
  • the refrigerant exiting the opening impacts the protrusion when it is directed to the base of the body.
  • the refrigerant which is separated into phases by impacting the body side wall, accumulates in the base of the body by draining from the surface of the protrusion located at the bottom with respect to the opening.
  • the protrusion is positioned in the vertical axis so as to face the opening from just below the level of the opening.
  • One part of the refrigerant is directed to the base of the body and the surface of the protrusion facing the base of the body prevents the refrigerant in the liquid phase from being directed to the ceiling of the body by serving as a barrier. Since the refrigerant rising towards the outlet impacts the protrusion, the refrigerant in the liquid phase and the refrigerant in the gas phase are separated from each other. Thus, the effectiveness of phase separation is increased.
  • two protrusions which are disposed one over the other almost around the same level in the vertical axis following each other, are disposed on the side wall of the body.
  • the opening is located in the vertical axis, almost aligned with the middle point of the two protrusions disposed one over the other.
  • the opening is positioned so as to face and be almost aligned with the protrusion, which is one of the two protrusions disposed at different heights from each other in the vertical axis and which is positioned above, close to the ceiling of the body, so as to spray the refrigerant to the protrusion.
  • the refrigerant does not disperse to between the two protrusions and the phase separation is effectively realized.
  • the almost Y-shaped tube is divided into more than one arm bent in opposite directions at different heights from each other and each of which has an opening provided on its end.
  • the protrusions are located in the vicinity of the level of the openings and just below the level of the openings. Due to the height difference between the openings, the pressure value that triggers the flow decreases in the flow of the refrigerant flowing in the tube. Thus, phase separation is performed easily.
  • the almost T-shaped tube is divided into two arms at the same level and such that the arms are in opposite directions, and two protrusions are disposed in the vicinity of the openings at the end of the arms, just below the level of the openings.
  • the phase separation is performed twice.
  • the amount of separation of the refrigerant in the liquid phase and the refrigerant in the gas phase from each other in unit time is increased.
  • the tube extending to the outlet is divided into two arms in the opposite direction at each step so as to create a step for phase separation.
  • protrusions which are oppositely positioned with respect to each other, one over the other and following each other, are disposed just above the point almost aligned with the openings.
  • the number of the openings is equal to the number of the protrusions.
  • the cross section of the protrusion, the base of which is located on the side wall of the body is in triangular form.
  • an accumulator which is used in the cooling devices with refrigeration cycles having liquid and gas phases and which comprises structures that increase the effectiveness of the separation of these two phases, is obtained. Moreover, by means of the said accumulator which increases the effectiveness of phase separation, the risk of entering of the refrigerant in the liquid phase to the compressor is reduced.
  • the accumulator (1) of the present invention which is suitable for using in cooling devices (2) wherein the refrigeration process is performed by the circulation of a refrigerant in the refrigeration cycle, the refrigerant in the liquid phase and the refrigerant in the gas phase are provided to be separated from each other.
  • the accumulator (1) of the present invention comprises
  • the protrusion (8) extends towards the opening (7) inside the body (3).
  • the movement of the refrigerant, which impacts the side wall of the body (3) upon exiting the opening (7), is directed and/or restricted by means of at least one protrusion (8).
  • the opening (7) and the protrusion (8) disposed at or around the level of each other (7, 8) in the vertical axis the movement of the refrigerant, which exits the opening (7) and impacts the side wall of the body (3), inside the body (3) is restricted ( Figure 2 ).
  • the refrigerant is not allowed to disperse inside the body (3) and the refrigerant is provided to flow through a restricted area. Therefore, the flow rate and momentum of the refrigerant increase.
  • the refrigerant that exits the opening (7) impacts the protrusion (8) faster and the refrigerant in the liquid phase and the refrigerant in the gas phase are separated from each other.
  • the gas particles having unstable structure shift to the liquid phase due to the effect of impacting and thus the effectiveness of separation is increased.
  • the inlet (4) is provided on the base of the body (3) and the outlet (5) is disposed on the ceiling of the body (3). While the refrigerant in the liquid phase is directed to the base of the body (3) with the effect of gravity, the refrigerant in the gas phase is directed to the outlet (5).
  • the protrusion (8) increases the area of the surface to which the liquid droplets on the side wall of the body (3) cling. Therefore, in the refrigerant flow, the amount of the refrigerant in the liquid phase that is separated from the refrigerant is increased.
  • the tube (6) extends towards the side wall of the body (3), by the end portion of thereof, whereon the opening (7) is located, bending.
  • the protrusion (8) is disposed just above the level of the opening (7) in the vertical axis so as to face the opening (7) ( Figure 3 ).
  • the refrigerant which is separated into phases by impacting the body (3) side wall, accumulates in the base of the body (3) by draining from the surface of the protrusion (8) located at the bottom with respect to the opening (7).
  • the protrusion (8) is disposed just below the level of the opening (7) in the vertical axis ( Figure 4 ).
  • the surface of the protrusion (8) that faces the base of the body (3) serves a barrier, which prevents the refrigerant in the liquid phase from being directed to the ceiling of the body (3), and provides the refrigerant in the liquid phase to be directed to the base of the body (3) by draining from the side walls of the body (3).
  • the flow of the refrigerant towards the base of the body (3) by exiting the opening (7) and impacting the side wall of the body (3) is facilitated.
  • the refrigerant that rises to the ceiling of the body (3) impacts the protrusion (8) and due to the effect of impacting, the refrigerant in the liquid phase is separated from the refrigerant in the gas phase.
  • the effectiveness of phase separation is increased.
  • the body (3) comprises two protrusions (8, 108) disposed one over the other on the side walls thereof.
  • the opening (7) is disposed at the level corresponding to between the two protrusions (8, 108) in the vertical axis and extends towards almost the middle point of the said protrusions (8, 108) ( Figure 5 ).
  • the two protrusions (8.108) further increase the area of the surface to which the liquid droplets on the side wall of the body (3) cling. By the area of the surface to which the liquid droplets cling being increased, the amount of the refrigerant in the liquid phase separated from the refrigerant in the gas phase is increased. Thus, the effectiveness of phase separation is increased.
  • the two stage phase separation operation is realized.
  • the refrigerant which is directed to the ceiling of the body (3) by exiting the opening (7), is separated to phases by impacting the first protrusion (8) located above, which is one of the protrusions (8, 108) positioned one over the other.
  • the surface of the first protrusion (8) that faces the base of the body (3) serves as a barrier and provides the liquid refrigerant droplets that impact the said surface to be directed to the base of the body (3) from the surface of the side wall of the body (3).
  • the protrusions (8, 108) positioned so as to follow each other serve as a step each for phase separation. Thus, a more effective phase separation is realized.
  • the opening (7) is positioned so as to face the protrusion (8) located above, which is one of the protrusions (8, 108) positioned one over the other ( Figure 6 ).
  • the refrigerant is provided to be directed firstly to the protrusion (8) located above and to be separated into phases there without dispersing between the two protrusions (8, 108).
  • the tube (6) is divided into more than one arm, each of which has an opening (7) disposed on its end ( Figure 7 ).
  • the tube (6) is almost Y-shaped.
  • the arms of the tube (6) are not at the same level and the tube (6) is divided into two arms which are one over the other and opposite to each other. Since the openings (7, 107) are located at different heights, the pressure that triggers the flow of the refrigerant in the tube (6) decreases.
  • the protrusion (8) is located in the vertical axis in the vicinity of the level of each opening (7, 107) and just below the level of the opening (7, 107).
  • the liquid refrigerant is provided to be drained to the base of the body (3) by impacting the side wall of the body (3) and the protrusion (8). Due to the protrusions (8, 108) disposed at different heights, the pressure difference that triggers the flow decreases and thus the flow rate of the refrigerant decreases. Thus, the refrigerant in the liquid phase is separated from the refrigerant in the gas phase more easily.
  • the tube (6) is divided into two arms from the same level such that the arms are in opposite directions ( Figure 8 ).
  • the tube (6) is almost T-shaped.
  • two protrusions (8, 108) are provided just below the level of the openings (7, 107).
  • the openings (7, 107) are disposed one over the other and at more than one level so as to perform phase separation in more than one step.
  • the protrusions (8, 108) are disposed oppositely so as to be at the same level and in opposite directions.
  • the tube (6) extending from the inlet (4) to the inside of the accumulator (1) is divided into two arms at each step towards the protrusions (8, 108) ( Figure 9 ).
  • the arms and the openings (7, 107) located at the end of the arms, which extend towards the protrusions (8, 108) disposed one over the other and following each other such that the protrusion (8)-opening (7) alignment is maintained, are disposed just above the point which is almost at the same level with the protrusions (8, 108) in the vertical axis.
  • the tube (6) disposed in the body (3) extends by being divided into arms to the outlet (5) until a point very close to the outlet (5) and such that the tube (6) does not cover the outlet (5).
  • the path on which the refrigerant flows is significantly restricted.
  • the effectiveness of phase separation is increased.
  • the cross section of the protrusion (8) is in triangular form.
  • the said protrusion (8) is in almost conical form ( Figure 2 and Figure 3 ).
  • the cooling device (2) wherein the accumulator (1) of the present invention is used comprises a compressor (10) which provides the refrigerant to be compressed by raising the pressure of the refrigerant to higher levels, a condenser (12) which provides the refrigerant, which exits the compressor (10) in high temperature and pressure as superheated vapor, to be changed to the liquid-gas phase by condensing, an expansion member (11) disposed after the condenser (12) and which provides the refrigerant to be expanded and changed to the liquid phase, an evaporator (9) into which the condensed refrigerant is delivered and which realizes refrigeration by absorbing the interior heat in order to change the condensed refrigerant to the gas phase, and the accumulator (1) of the present invention is disposed between the evaporator (9) and the compressor (10).
  • the refrigerant with the liquid and gas phases is provided to be delivered from the evaporator (9) to the compressor (10) with minimum amount of the refrigerant in the liquid phase.
  • the opening (7) and the protrusion (8) are positioned closely, at almost the same level and without contacting each other.
  • the cross section area to which the refrigerant delivered into the body (3) flows is restricted by means of the shape of the tube (6) and the protrusion (8).
  • the protrusion (8) serves as a barrier in the phase separation and also increases the surface to which the droplets in the liquid phase cling.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (14)

  1. Un accumulateur (1) adapté pour l'utilisation dans les systèmes de réfrigération des dispositifs de refroidissement (2) et utilisé pour séparer le fluide frigorigène dans le système de réfrigération dans les phases liquide et gazeuse, comprenant
    - un corps (3),
    - au moins une entrée (4)
    - au moins une sortie (5) à travers laquelle le fluide frigorigène sort du corps (3),
    - un tube (6) comprenant au moins une ouverture (7) qui s'étend à partir de l'entrée (4) vers l'intérieur du corps (3), qui fait face aux parois latérales du corps (3) et qui permet au fluide frigorigène d'entrer dans le corps (3),
    caractérisé par au moins une protubérance (8) qui s'étend vers l'intérieur du corps (3) et qui est située sur la paroi latérale du corps (3) au même niveau de l'ouverture (7) ou à proximité du niveau de l'ouverture (7) dans l'axe vertical.
  2. Un accumulateur (1) selon la Revendication 1, caractérisé par l'ouverture (7) et la protubérance (8) qui sont positionnées de manière à être presque opposées l'une à l'autre (7, 8) et à ne pas toucher l'une l'autre (7, 8).
  3. Un accumulateur (1) selon la Revendication 1 ou 2, caractérisé par au moins une entrée (4) qui est arrangée sur la base du corps (3) et au moins une sortie (5) qui est disposée sur le plafond du corps (3).
  4. Un accumulateur (1) selon l'une quelconque des revendications précédentes, caractérisé par un tube (6) sur la partie terminale duquel l'ouverture (7) est arrangée et qui s'étend vers la paroi latérale du corps (3) en pliant et/ou formant une inclinaison par rapport à l'axe vertical.
  5. Un accumulateur (1) selon les revendications 1 à 4, caractérisé par la protubérance (8) qui est disposée juste au-dessus du niveau de l'ouverture (7) dans l'axe vertical.
  6. Un accumulateur (1) selon les revendications 1 à 4, caractérisé par la protubérance (8) qui est disposée juste au-dessous du niveau de l'ouverture (7) dans l'axe vertical.
  7. Un accumulateur (1) selon l'une quelconque des revendications précédentes, caractérisé par les deux protubérances (8, 108) qui sont disposées l'une au-dessus de l'autre.
  8. Un accumulateur (1) selon la Revendication 7, caractérisé par l'ouverture (7) qui est arrangée dans l'axe vertical presque au niveau du point milieu des deux protubérances (8, 108) disposées l'une au-dessus de l'autre.
  9. Un accumulateur (1) selon la Revendication 7, caractérisé par l'ouverture (7) qui est arrangée au même niveau que la première protubérance (8) située au-dessus, qui est une des protubérances (8, 108) positionnées l'une au-dessus de l'autre.
  10. Un accumulateur (1) selon l'une quelconque des revendications 1 à 4, caractérisé par le tube (6) qui est divisé en plus d'un bras, dont chacun présente une ouverture (7, 107) arrangée à son extrémité et les protubérances (8, 108) disposées presque au-dessous du niveau de chaque ouverture (7) dans l'axe vertical.
  11. Un accumulateur (1) selon l'une quelconque des revendications 1 à 4, caractérisé par le tube (6) qui est divisé en deux bras au même niveau de telle sorte que les bras sont dans les directions opposées, les ouvertures (7, 107) arrangée à l'extrémité de chaque bras dans les directions opposées l'une à l'autre (7, 107) et au même niveau et les deux protubérances (8, 108) disposées presque au-dessous du niveau des ouvertures (7, 107).
  12. Un accumulateur (1) selon l'une quelconque des revendications 1 à 4, caractérisé par le tube (6) qui est divisé en deux bras dans les directions opposées à chaque étape de manière à créer une étape pour la séparation des phases et les protubérances (8, 108) disposées presque au même niveau des ouvertures (7) à l'extrémité de chaque bras.
  13. Un accumulateur (1) selon l'une quelconque des revendications 1 à 4, caractérisé par un tube (6) qui s'étend en étant divisé en des bras vers la sortie (5) jusqu'à un point très proche de la sortie (5) et de manière à ne pas recouvrir la sortie (5) et qui rétrécit la section transversale sur laquelle le fluide frigorigène écoule.
  14. Un dispositif de refroidissement (2) comprenant un accumulateur (1) selon l'une quelconque des revendications précédentes, disposé entre le compresseur (10) et l'évaporateur (9).
EP11779402.4A 2010-11-12 2011-11-04 Accumulateur et dispositif de réfrigération dans lequel l'accumulateur est utilisé Not-in-force EP2638338B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201009490 2010-11-12
PCT/EP2011/069482 WO2012062678A1 (fr) 2010-11-12 2011-11-04 Accumulateur et dispositif de réfrigération dans lequel l'accumulateur est utilisé

Publications (2)

Publication Number Publication Date
EP2638338A1 EP2638338A1 (fr) 2013-09-18
EP2638338B1 true EP2638338B1 (fr) 2016-06-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11779402.4A Not-in-force EP2638338B1 (fr) 2010-11-12 2011-11-04 Accumulateur et dispositif de réfrigération dans lequel l'accumulateur est utilisé

Country Status (4)

Country Link
EP (1) EP2638338B1 (fr)
CN (1) CN103189691B (fr)
PL (1) PL2638338T3 (fr)
WO (1) WO2012062678A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954635A (zh) * 2012-12-10 2013-03-06 合肥华凌股份有限公司 储液器组件和具有其的蒸发器装置以及制冷设备
CN114484940A (zh) * 2022-01-06 2022-05-13 青岛海尔空调器有限总公司 换热器、空调器

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US3563053A (en) 1968-09-16 1971-02-16 Edward W Bottum Suctiin accumulator
FR2718833B1 (fr) * 1994-04-19 1997-04-11 Daewoo Electronics Co Ltd Accumulateur destiné à être utilisé dans un réfrigérateur.
JP3215614B2 (ja) * 1995-11-02 2001-10-09 松下精工株式会社 空気調和機の冷凍サイクルおよび冷凍サイクル部品
JP2000329430A (ja) * 1999-05-20 2000-11-30 Fujitsu General Ltd 油分離器
US6223555B1 (en) 1999-06-08 2001-05-01 Visteon Global Technologies, Inc. Accumulator for an air conditioning system
GB2351144B (en) 1999-06-11 2003-11-05 Delphi Tech Inc An accumulator for an air conditioning system
US20040118148A1 (en) * 2002-12-24 2004-06-24 Ti Group Automotives Systems, Llc Accumulator with inlet diffuser\diverter
CN1952535A (zh) * 2005-10-21 2007-04-25 乐金电子(天津)电器有限公司 空调器的贮液器
JP2010144935A (ja) * 2008-12-16 2010-07-01 Fuji Koki Corp レシーバタンク

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
CN103189691A (zh) 2013-07-03
PL2638338T3 (pl) 2016-12-30
WO2012062678A1 (fr) 2012-05-18
EP2638338A1 (fr) 2013-09-18
CN103189691B (zh) 2015-07-15

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