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EP2129978B1 - Condenseur destiné à une climatisation, notamment à une climatisation de véhicule - Google Patents

Condenseur destiné à une climatisation, notamment à une climatisation de véhicule Download PDF

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Publication number
EP2129978B1
EP2129978B1 EP08716021A EP08716021A EP2129978B1 EP 2129978 B1 EP2129978 B1 EP 2129978B1 EP 08716021 A EP08716021 A EP 08716021A EP 08716021 A EP08716021 A EP 08716021A EP 2129978 B1 EP2129978 B1 EP 2129978B1
Authority
EP
European Patent Office
Prior art keywords
condenser
collector
section
refrigerant
pipe
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
EP08716021A
Other languages
German (de)
English (en)
Other versions
EP2129978A2 (fr
Inventor
Martin Kaspar
Kurt Molt
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Priority to EP11166079.1A priority Critical patent/EP2357430B1/fr
Publication of EP2129978A2 publication Critical patent/EP2129978A2/fr
Application granted granted Critical
Publication of EP2129978B1 publication Critical patent/EP2129978B1/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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/04—Desuperheaters

Definitions

  • the invention relates to a condenser for an air conditioner according to claim 1, as far as the subject matter of the earlier patent application of the applicant with the file number 10 2005 005 187.1 is known.
  • Applicant's earlier patent application Serial No. 10 2005 005 187.1 relates to a refrigerant condenser having a condenser section and a subcooling section arranged above it - so-called subcooling section, in which the refrigerant is cooled below its condensation temperature.
  • the condenser also has laterally arranged collecting tubes and an integrated collector, which communicates via a first and a second overflow opening with the adjacent collecting tube or the condenser.
  • an insert is arranged, which has a downpipe, a filter-dryer unit and a riser, wherein the downpipe communicates on the input side with the last condensing section and the riser on the output side with the subcooling.
  • a dryer material a so-called molecular sieve
  • a mechanical sieve In the filter-dryer unit, a dryer material (a so-called molecular sieve) and a mechanical sieve are arranged, so that the refrigerant is released on the one hand from particles such as impurities while flowing through the filter-dryer unit and on the other hand dried.
  • a plug In the upper part of the collector, in the region of the overflow openings, a plug is arranged, which separates the incoming and outgoing refrigerant flows from each other.
  • an inflow chamber is arranged in the region of the first overflow opening (inflow opening) and an outflow chamber in the region of the second overflow opening (outflow opening), which on the one hand is delimited by the cylindrical wall of the collector and on the other hand by two plates or partitions and a closure part.
  • the downcomer closes down to the inflow chamber, through which the refrigerant flow entering from the condenser section is channeled and oriented in its flow direction downwards, ie in the direction of the bottom of the accumulator.
  • the downpipe ends far above the ground.
  • a dryer element is arranged in the collector on the ground, which is preferably designed as a nonwoven bag with trapped dryer granules and extends up to below the inflow chamber.
  • the refrigerant flow emerging from the downpipe can thus contact the dryer material, as a result of which water is withdrawn from the refrigerant.
  • a continuous from the bottom to the outflow chamber riser or suction pipe is arranged in the collector, through which the refrigerant is fed from bottom to top in the outflow chamber.
  • the riser is extended in its lower cross-sectional area and takes a filter element, preferably formed as a filter hat, positive or non-positive in itself.
  • the downpipe and the riser are integrally formed with each other and have a double cross section, characterized by a common partition, on.
  • the lower and the upper plate are integrally formed with riser and downpipe, so that when trained as a plastic injection molding an easy-to-use use results, which is inserted into the collector and secured by a closure part.
  • the assembly - or possibly the dismantling - can thus be done with one or two steps.
  • the drop tube of the invention is replaced by a flow channel formed by a dividing wall insert, the outer wall of the riser tube and the inner wall of the collector, so that two injection channels result.
  • the first flow channel has a flow cross section which is formed by the inner wall of the collector, by the outer wall of the riser and by a partition wall insert.
  • partition wall insert connects to a bottom part, which divides the inflow chamber.
  • the partition insert is angled approximately at right angles from the bottom part and is preferably formed integrally with the bottom part.
  • the dividing wall insert has two dividing wall strips, through which two injection channels are formed.
  • partition wall insert and / or the bottom part are attached to the riser or formed integrally therewith.
  • the upper part of the storage space can be divided off by the dividing wall insert or the dividing wall strip with respect to the injection channels.
  • the dryer is arranged in the storage space.
  • the dryer is designed as a fleece bag, fillable with dryer granules.
  • the riser, the partition wall insert, the bottom part and / or the partition wall are designed as an insert, preferably as a one-piece plastic injection-molded part.
  • Fig. 1 shows a multi-flow permeable cross-flow condenser 1, which has a tube fin block 2, laterally arranged manifolds 3, 4 and an integrated collector 5.
  • the pointing in alternate directions arrows P1, P2, P3, P4, P5 and P6 represent the flow directions of the refrigerant in individual pipe groups of the pipe fin block 2, not shown, wherein the refrigerant enters via a lower nozzle 3a and 3b via an overhead nozzle exit.
  • the pipe fin block 2 consists of a condensing section, which corresponds to the arrows P1 to P5, and a subcooling section, which is located above the condensing section, and which is identified by the arrow P6.
  • the subcooling section flows substantially liquid refrigerant, which is cooled by the ambient air, which acts on the condenser 1, below the condensation temperature of the refrigerant. Subsequently, the refrigerant leaves the condenser 1 via the connection 3b.
  • Fig. 2 shows - an embodiment of the invention - the collector 5 in a sectional view - without the adjacent manifold 4.
  • the collector 5 consists of two pipe sections, an upper extruded pipe section 5a and a lower, integrally connected to the upper pipe section 5a welded pipe section 5b.
  • the collector 5 is closed down by a bottom 6 (not detachable) and upwards by a sealing plug 7 (releasably).
  • the extruded pipe section 5a has a first overflow opening (inlet opening) and a second overflow opening 9 (outflow opening), through which refrigerant flows from the not shown adjacent manifold according to the arrow E and flows out according to the arrow A.
  • the outflow chamber 11 is formed by the upper plate 13, which has a circumferential sealing ring 14, and by the releasable sealing plug 7.
  • the lower plate 12 has in its central region an inlet opening 12a, which is followed by a down tube 15, which has a lower outlet opening 15a.
  • a dryer element designed as filled with dryer granulate nonwoven bag 16, resting on the floor 6, arranged.
  • the nonwoven bag 16 has a shape corresponding to the installation conditions, ie here an elongated, extending in the longitudinal direction of the collector mold, which leaves enough space for flowing around the nonwoven bag 16 for the exiting from the downcomer pipe 15 refrigerant flow.
  • refrigerant is stored, which is in liquid and gaseous phase; the liquid level should be above the outlet opening 15a of the downpipe 15.
  • the downpipe 15 is a riser 17, preferably integrally connected, which extends in the longitudinal direction of the collector 5 from the bottom 6 to the upper plate 13.
  • the latter has an outlet opening 13a, to which the upper end 17a of the riser 17 connects.
  • the riser 17 penetrates with its upper portion 17 a, the inflow chamber 10 and the plate 12 and forms with its central portion 17 b together with the adjacent downpipe 15 has a double cross-section, ie two divided by a common partition cross-sections for in opposite directions flowing refrigerant.
  • the lower portion 17 c of the riser 17 is widened in its cross-section and takes in - as seen in the drawing - a cylindrical filter element, which is designed as a so-called filter cap 18.
  • the filter hat 18 has on its cylindrical circumference window-like filter screens 18b (particle filter), is closed at its upper front end 18a and open at the opposite end 18c.
  • the riser 17 is with its lower front end on the floor 6 and has for the access of refrigerant to a breakthrough 17d.
  • rod-shaped spacers 20 are arranged and connected to the plate 13 - they abut with their upper ends to the underside of the sealing plug 7 and thus fix the plate 13 upwards.
  • the riser 17, the downpipe 15, the lower plate 12, the upper plate 13 and the spacers 20 are preferably made in one piece as a plastic injection molded part and thus form an insert which can be inserted into the collector 5 from above - with the plug plug 7 removed.
  • the nonwoven bag 16 is inserted.
  • the closure plug 7 is inserted and fixed so that it forms an upper stop for the entire use with riser 17.
  • the largely condensed refrigerant passes according to the arrow E (analogous to the mentioned earlier application) in the inflow chamber 10 and flows through the inlet opening 12a and the downpipe 15 in the direction of an arrow F down ,
  • the flow velocity of the refrigerant delays due to the cross-sectional widening, so that entrained gas bubbles can separate and rise upwards. Due to the flow guidance in the downpipe 15, the liquid refrigerant thus does not come into contact with the gas phase.
  • the refrigerant continues to flow down, thereby contacting the nonwoven bag 16 or the dryer granules contained therein, whereby moisture is removed from the refrigerant.
  • the refrigerant Arrived at the bottom 6 of the collector 5, the refrigerant is correspondingly deflected an arrow G and enters through the lower opening 18 c in the axial direction in the filter cap 18 a.
  • the refrigerant then flows in the radial direction through the window-like sieves 18b outward into the annular gap 19, wherein any entrained particles are retained by the sieves 18b and fall down to the bottom 6.
  • the refrigerant rises upward into the central region 17b and further into the upper region 17a of the riser 17.
  • the refrigerant leaves the collector 5 according to the arrow A and passes through the adjacent not shown Collector in the also not shown upper subcooling of the capacitor.
  • FIG. 3, 4 and 5 show a further embodiment, however, does not belong to the invention with a collector 21, which - as in the previous embodiment of two pipe sections, an upper extruded pipe section 21 a and a lower welded pipe section 21 b is composed.
  • a collector 21 which - as in the previous embodiment of two pipe sections, an upper extruded pipe section 21 a and a lower welded pipe section 21 b is composed.
  • In the upper tube piece 21a there are an inflow opening 22, which communicates with an inflow chamber 23, and an outflow opening 24, which communicates with an outflow chamber 25.
  • Inflow chamber 23 and outflow chamber 25 are separated from each other by a partition wall 26 formed as a disk and sealed on its circumference with spacers 26a.
  • the collector 21 is closed at the bottom by a bottom 27 and at the top by a detachable sealing plug 28.
  • a flow channel is arranged for flowing from the bottom 27 into the outflow chamber 25 refrigerant.
  • the riser 29 is on the floor 27 and extends in height, ie in the longitudinal direction of the collector 21 to the partition wall 26 which receives the upper end 29 a of the riser 29.
  • the lower end 29b has a shoulder 29c for entry of the refrigerant.
  • the riser 29 has a sleeve 30, which serves for the one-piece production of the riser 29.
  • a filter element 31 is arranged in the lower region of the riser 29, which filter element 18 according to the embodiment of Fig. 2 corresponds, ie in form, arrangement and function.
  • a flow channel for inflowing refrigerant is provided, which is formed not by a closed pipe cross-section (in the form of a downpipe), but by a partition wall insert 32, the outer wall of the riser 29 and the inner wall of the pipe section 21 b.
  • the partition wall insert 32 consists of two partition wall strips 32a, 32b, which abut with their inner longitudinal edges on the riser 29 and with its outer longitudinal edges against the inner wall of the collector 21.
  • the dividing wall strips 32a, 32b are connected to a bottom part 33 which delimits the inflow chamber 23 downwards (in the direction of the bottom 27) but leaves open on both sides of the riser pipe 29 two passage cross sections for the inflowing refrigerant which form the inlet to two injection channels 34 (cf. , Fig. 5 ).
  • the dividing wall strips 32a, 32b and the bottom part 33 are preferably formed in one piece and connected to the riser 29, inter alia via a web 33a.
  • a storage space 35 is arranged, in which in particular the gaseous phase of the refrigerant can collect.
  • the liquid level S of the refrigerant that is to say the separating plane between liquid and gaseous phase, is located in the region of the dividing wall strips 32a, 32b.
  • Fig. 5 shows a cross section corresponding to the plane VV with a view of the bottom part 33 and arranged on either side of the riser 29 injection channels 34.
  • the cross section of the injection pipe 29 is slightly flattened, so that a good space utilization within the circular cross-section of the collector 21 for the injection channels 34 results and on the other hand a sufficiently large cross-section for the storage space 35 is available, in particular for the accommodation of the desiccant 36th
  • the riser 29, the bottom part 33 with partition insert 32 and the partition wall 26 with spacers 26a may preferably be made in one piece as a plastic injection molded part and thus form an insert, which - Together with the nonwoven bag 36 - inserted into the collector 21 and can be fixed there.
  • the function of the collector described above is basically the same as in the previous embodiment according to Fig. 2 , Different is - as already mentioned - the geometric design of the flow channel, which adjoins the inflow chamber 23 and leads down.
  • the downpipe 15 according to Fig. 2 is here substituted by the injection channels 34.
  • the inflowing according to arrow E refrigerant thus flows through the two injection channels 34 down, following the arrow F, wherein the refrigerant is deprived of moisture by the granules.
  • the refrigerant enters the bottom pipe 27 through the opening 29c in the riser 29, rises according to the dashed arrow H up to the outflow chamber 25, from which the refrigerant according to the arrow A exits.
  • the injection channels 34 ensures that the inflowing refrigerant is not with any gas cushion, which could be located in the upper part of the storage space 35, comes in contact so far down that the incoming refrigerant flow directly into the liquid phase of the refrigerant opens.
  • the liquid level S which has a geodetic height h with respect to the lower edge of the dividing wall strips 32a, 32b, is shown by way of example in the storage chamber 35.
  • the mirror S is variable in the course of the operation of the air conditioner, d. H. it can be higher or lower.
  • the length of the injection channels 34 should be such that the height h is always positive, i. H. immerse the lower edges of the dividing wall strips 32a, 32b in liquid refrigerant.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (12)

  1. Condenseur (1) pour un système de climatisation, en particulier d'un véhicule automobile, comprenant un bloc d'ailettes de tubes (2) et des tubes collecteurs (3, 4) disposés latéralement, où le bloc d'ailettes de tubes (2) présente des tubes s'étendant horizontalement, une section de condensation (P1 à P5) et une section de surrefroidissement (P6) disposée au-dessus de la section de condensation, comprenant également un collecteur (5) disposé parallèlement à l'un des tubes collecteurs et logeant un dessiccateur, un filtre, un tube de descente (15) ainsi qu'un tube de montée (17), lequel collecteur, concernant le fluide frigorigène, communique avec la section de condensation (P5) via une première ouverture de trop-plein (8), et avec la section de surrefroidissement (P6) via une deuxième ouverture de trop-plein (9), où le tube de descente (15) communique, côté entrée, avec la première ouverture de trop-plein (8) via une chambre d'entrée de fluide (10) disposée dans le collecteur (5),
    caractérisé en ce que la chambre d'entrée de fluide (10) est délimitée par un plateau inférieur (12) et par un plateau supérieur (13).
  2. Condenseur selon la revendication 1, caractérisé en ce que le collecteur (5) présente un fond (6), et en ce qu'un élément (16) du dessiccateur est disposé entre la chambre d'entrée de fluide (10) et le fond (6).
  3. Condenser selon la revendication 2, caractérisé en ce que l'élément du dessiccateur, remplissable avec un granulat de dessiccation, est configuré comme un sac (16) en tissu non tissé.
  4. Condenseur selon la revendication 3, caractérisé en ce qu'une chambre d'évacuation de fluide (11) est disposée dans le collecteur (5), au-dessus de la chambre d'entrée de fluide (10), laquelle chambre d'évacuation de fluide est délimitée par le plateau supérieur (13) et par un élément de fermeture (7).
  5. Condenseur selon la revendication 4, caractérisé en ce que le tube de montée (17) présente une longueur allant du fond (6) jusqu'à la chambre d'évacuation de fluide (11).
  6. Condenseur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le tube de descente (15) et le tube de montée (17) sont reliés l'un à l'autre.
  7. Condenseur selon la revendication 6, caractérisé en ce que le tube de descente (15) et le tube de montée (17) sont configurés en formant un seul et même tube et, sur le tronçon d'une longueur commune, présentent une double section.
  8. Condenseur selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le tube de montée (17) présente un tronçon inférieur (17c) dans lequel est logé l'élément (18) du filtre.
  9. Condenseur selon la revendication 8, caractérisé en ce que l'élément du filtre est configuré comme un couvercle de filtre (18) dans lequel le fluide peut être fourni axialement (flèche G) et évacué radialement (flèche H).
  10. Condenseur selon la revendication 9, caractérisé en ce que le couvercle de filtre (18) est logé et peut être fixé dans le tube de montée (17, 17c) en étant assemblé par complémentarité de forme et / ou par action de force.
  11. Condenseur selon la revendication 9 ou 10, caractérisé en ce que le tube de montée (17) présente, dans la zone du couvercle de filtre (18), une section augmentée et, avec le couvercle de filtre (18), forme un interstice annulaire (19).
  12. Condenseur selon l'une quelconque des revendications précédentes, caractérisé en ce que le tube de descente (15), le tube de montée (17), les plateaux inférieur et supérieur (12, 13) peuvent être réalisés en matière plastique en formant une seule et même pièce ou plusieurs pièces.
EP08716021A 2007-02-27 2008-02-25 Condenseur destiné à une climatisation, notamment à une climatisation de véhicule Not-in-force EP2129978B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11166079.1A EP2357430B1 (fr) 2007-02-27 2008-02-25 Condensateur pour une climatisation, notamment d'un véhicule automobile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007009923A DE102007009923A1 (de) 2007-02-27 2007-02-27 Kondensator für eine Klimaanlage, insbesondere eines Kraftfahrzeuges
PCT/EP2008/001476 WO2008104349A2 (fr) 2007-02-27 2008-02-25 Condenseur destiné à une climatisation, notamment à une climatisation de véhicule

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP11166079.1 Division-Into 2011-05-13

Publications (2)

Publication Number Publication Date
EP2129978A2 EP2129978A2 (fr) 2009-12-09
EP2129978B1 true EP2129978B1 (fr) 2012-04-11

Family

ID=39433861

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11166079.1A Not-in-force EP2357430B1 (fr) 2007-02-27 2008-02-25 Condensateur pour une climatisation, notamment d'un véhicule automobile
EP08716021A Not-in-force EP2129978B1 (fr) 2007-02-27 2008-02-25 Condenseur destiné à une climatisation, notamment à une climatisation de véhicule

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11166079.1A Not-in-force EP2357430B1 (fr) 2007-02-27 2008-02-25 Condensateur pour une climatisation, notamment d'un véhicule automobile

Country Status (6)

Country Link
US (1) US8387407B2 (fr)
EP (2) EP2357430B1 (fr)
CN (1) CN101627267B (fr)
AT (1) ATE553341T1 (fr)
DE (1) DE102007009923A1 (fr)
WO (1) WO2008104349A2 (fr)

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DE102012222664A1 (de) * 2012-08-09 2014-03-06 Behr Gmbh & Co. Kg Kondensator
US9612046B2 (en) * 2012-12-14 2017-04-04 Mahle International Gmbh Sub-cooled condenser having a receiver tank with a refrigerant diverter for improved filling efficiency
DE102013204294A1 (de) * 2013-03-12 2014-10-02 Behr Gmbh & Co. Kg Kondensatorbaugruppe für Kältemittel
DE102013217072A1 (de) * 2013-08-27 2015-03-05 Behr Gmbh & Co. Kg Kondensator
JP6460233B2 (ja) * 2015-05-26 2019-01-30 株式会社デンソー 凝縮器
KR102459106B1 (ko) * 2016-03-17 2022-10-27 한온시스템 주식회사 기액분리기 및 이를 포함하는 응축기
CN107560241A (zh) * 2016-06-30 2018-01-09 重庆长安汽车股份有限公司 一种车用过冷延伸冷凝器
CN107796145A (zh) * 2016-08-30 2018-03-13 株式会社京滨冷暖科技 冷凝器
US10563890B2 (en) * 2017-05-26 2020-02-18 Denso International America, Inc. Modulator for sub-cool condenser
DE102022201103A1 (de) 2022-02-02 2023-08-03 Mahle International Gmbh Einsatz für einen Sammler eines Kältemittelkondensators

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JP3925158B2 (ja) 2001-10-30 2007-06-06 株式会社デンソー 冷媒凝縮器
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Also Published As

Publication number Publication date
US8387407B2 (en) 2013-03-05
US20100147019A1 (en) 2010-06-17
CN101627267A (zh) 2010-01-13
DE102007009923A1 (de) 2008-08-28
CN101627267B (zh) 2012-12-26
EP2357430A3 (fr) 2011-12-21
WO2008104349A3 (fr) 2008-11-13
EP2129978A2 (fr) 2009-12-09
ATE553341T1 (de) 2012-04-15
EP2357430A2 (fr) 2011-08-17
WO2008104349A2 (fr) 2008-09-04
EP2357430B1 (fr) 2013-07-03

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