EP3548828A1 - Dispositif de distribution d'un fluide réfrigérant à l'intérieur de tubes d'un échangeur de chaleur constitutif d'un circuit de fluide réfrigérant - Google Patents
Dispositif de distribution d'un fluide réfrigérant à l'intérieur de tubes d'un échangeur de chaleur constitutif d'un circuit de fluide réfrigérantInfo
- Publication number
- EP3548828A1 EP3548828A1 EP17817793.7A EP17817793A EP3548828A1 EP 3548828 A1 EP3548828 A1 EP 3548828A1 EP 17817793 A EP17817793 A EP 17817793A EP 3548828 A1 EP3548828 A1 EP 3548828A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- orifices
- type
- passage section
- heat exchanger
- group
- 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.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 70
- 238000000265 homogenisation Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 44
- 239000002826 coolant Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000012886 linear function Methods 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 1
- 210000003717 douglas' pouch Anatomy 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
-
- 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
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
Definitions
- the field of the present invention is that of heat exchangers constituting a refrigerant circuit fitted to a motor vehicle.
- the subject of the invention is a device for homogenizing the distribution of a refrigerant fluid inside tubes of such a heat exchanger.
- a motor vehicle is commonly equipped with a ventilation, heating and / or air conditioning system for heat treating the air present or sent inside a passenger compartment of the motor vehicle.
- a ventilation, heating and / or air conditioning system for heat treating the air present or sent inside a passenger compartment of the motor vehicle.
- the refrigerant circuit comprises successively a compressor, a condenser or gas cooler, an expansion member and a heat exchanger.
- the heat exchanger is housed inside the ventilation, heating and / or air conditioning system to allow a heat exchange between the refrigerant and a flow of air circulating inside said installation, previously a delivery of the air flow inside the passenger compartment.
- heat exchanger is used as an evaporator to cool the air flow.
- the refrigerant is compressed inside the compressor, then the cooling fluid is cooled inside the condenser or gas cooler, then the refrigerant is expanded within the expansion device and finally the refrigerant captures calories to the airflow inside the heat exchanger.
- the refrigerant fluid, at the outlet of the expansion member and at the inlet of the heat exchanger, is in the two-phase state and is present in a liquid phase and a gaseous phase.
- the heat exchanger comprises a header and a return box between which a bundle of tubes is interposed.
- the refrigerant is admitted inside the heat exchanger through an inlet mouth that includes the manifold.
- the coolant flows between the manifold and the gearbox by borrowing the tubes of the beam.
- a general problem posed lies in the difficulty of feeding the tubes of the bundle homogeneously with respect to the different phases, liquid and gaseous, of the refrigerant fluid.
- a heterogeneity of supply of refrigerant fluid tubes of the beam generates a heterogeneity of the temperature of the air flow through the heat exchanger.
- the document US2015 / 0121950 proposes to house, inside the manifold, a device for homogenizing the distribution of the refrigerant fluid inside the tubes of the bundle.
- This device comprises a conduit which has a first end portion in relation to a first inlet mouth of the refrigerant fluid inside the heat exchanger.
- the conduit is arranged in a cylindrical tube having a peripheral wall provided with orifices.
- the orifices are identical to each other.
- the coolant is projected through the orifices provided through the conduit to circulate inside the tubes of the heat exchanger.
- Such an organization is not optimal from the point of view of the homogenization of the coolant distribution inside the heat exchanger. More particularly, the tubes of the beam farthest from the first end portion are frequently underfed with refrigerant fluid.
- An object of the invention is to perfect the homogeneity of the coolant distribution inside the heat exchanger, in order to improve its efficiency and efficiency, in order to deliver inside the passenger compartment. a flow of air at the desired temperature.
- Another object of the invention is to improve the distribution of refrigerant inside the heat exchanger, including when the latter is present inside. of the heat exchanger under two distinct phases, liquid and gas, in respective variable proportion.
- Another aim is to propose a device for distributing a refrigerant fluid inside the manifold, and inside the tubes of the bundle, which provides an equivalent supply of refrigerant fluid to the tubes of the bundle, including those which are furthest from a refrigerant inlet window inside the duct, and for example the first end portion of the duct when the latter is provided with the window.
- a device of the present invention is a device for homogenizing a distribution of the refrigerant fluid inside tubes of a heat exchanger.
- the homogenizing device comprises at least one duct provided with N orifices of respective passage cross section of the refrigerant fluid, with N> 2, of which at least one orifice of the first type having a first passage section and at least one second type orifice. having a second passage section.
- the first passage section is smaller than the second passage section.
- the homogenizing device advantageously comprises at least one of the following characteristics, taken alone or in combination:
- the duct comprising at least one coolant admission window, the first type orifice being positioned at a first distance from the window, the second type orifice being positioned at a second distance from the window, the first distance is less than a second distance.
- the orifices are distributed in groups, a group of orifices being formed by at least two orifices adjacent to one another and of passage sections identical to one another.
- the orifices are distributed at least in a first group of orifices of the first type having the first passage section and in a second group of orifices of the second type having the second passage section.
- the first type orifices of the first group extend over at least half of a length of the duct taken between a first end portion and a second portion end of the duct.
- the first type orifices of the first group extend over two-thirds of the length of the duct and the second-type orifices of the second group extend over a third of the length of the duct, to within 5%.
- the orifices are distributed at least in a first group of orifices of the first type having the first passage section, in a second group of orifices of the second type having the second passage section, and in a third group of orifices of third type having a third passage section.
- the first type orifices of the first group extend over a third of the length of the duct
- the second type of orifices of the second group extend over one third of the length of the duct
- the passage section of the orifices is an increasing function of a distance taken between the window and the orifices.
- the function is a linear function or the function is an exponential function or the function is a step function.
- the duct comprises a first end portion provided with the window and a second end portion which is closed.
- the duct is cylindrical.
- the invention also relates to a heat exchanger comprising a header housing at least one such homogenizer.
- the invention also relates to a refrigerant circuit comprising at least one such heat exchanger.
- the invention also relates to a use of such a heat exchanger as an evaporator housed inside a housing of a ventilation, heating and / or air conditioning equipment equipping a motor vehicle.
- FIG. 1 is a schematic illustration of a refrigerant circuit comprising a heat exchanger of the present invention
- FIG. 2 is a schematic illustration of a first variant embodiment of the heat exchanger illustrated in FIG. 1;
- FIG. 3 is a schematic illustration of a second variant embodiment of the heat exchanger illustrated in FIG. 1;
- FIG. 4 is a diagrammatic perspective view of a first variant embodiment of a refrigerant distribution device fitted to the heat exchanger illustrated in FIGS. 2 or 3,
- FIG. 5 is an illustration of the diameter of the orifices equipping the dispensing device illustrated in FIG. 4 as a function of a respective distance from the orifices relative to a window equipping said device,
- FIG. 6 is a diagrammatic perspective view of a second alternative embodiment of a refrigerant distribution device fitted to the heat exchanger illustrated in FIGS. 2 or 3,
- FIG. 7 is an illustration of the diameter of the orifices equipping the dispensing device illustrated in FIG. 6 as a function of a respective distance from the orifices relative to a window equipping said device,
- FIG. 8 is a schematic perspective view of a third variant embodiment of a refrigerant distribution device fitted to the heat exchanger illustrated in FIGS. 2 or 3,
- FIG. 9 is an illustration of the diameter of the orifices equipping the device illustrated in FIG. 8 as a function of a respective distance from the orifices relative to a first end portion of said device.
- FIG. 1 there is shown a closed circuit 1 inside which circulates a refrigerant fluid FR.
- the refrigerant circuit 1 successively comprises, in a direction SI of circulation of the refrigerant fluid FR inside the refrigerant circuit 1, a compressor 2 for compressing the fluid refrigerant FR, a condenser or a gas cooler 3 for cooling the refrigerant FR, an expansion member 4 within which the cooling fluid FR undergoes expansion and a heat exchanger 5.
- the heat exchanger 5 is housed inside a casing 6 of a ventilation, heating and / or air conditioning installation 7 inside which circulates a flow of air.
- the heat exchanger 5 allows a heat transfer between the refrigerating fluid FR and the airflow FA coming into contact with it and / or passing through it, as illustrated in FIGS. 2 and 3.
- the heat exchanger 5 is used as an evaporator for cooling the air flow FA, during the passage of the air flow FA to the contact and / or from one side of the exchanger heat 5.
- the heat exchanger 5 comprises a manifold 8 and a gearbox 9 between which a tube bundle 10, 10a, 10b is interposed.
- the heat exchanger 5 extends parallel to a first plane PI containing the manifold 8, the bundle of tubes 10, 10a, 10b and the return box 9.
- the manifold 8 overhangs the bundle of tubes 10, 10a, 10b, which are themselves located above the return box 9, in particular in the position of use of the heat exchanger 5 mounted inside the housing 6.
- the manifold 8 is an upper box of the heat exchanger 5 while the return box 9 is a lower box of the heat exchanger 5.
- the airflow FA flows through the heat exchanger 5 in a direction preferably orthogonal to the first plane Pl.
- the tubes 10, 10a, 10b are for example rectilinear and extend along a first axis of general extension Al between the manifold 8 and the gearbox 9.
- the manifold 8 extends along a second axis of extension A2 and the return box 9 extends along a third axis of general extension A3.
- the second axis of general extension A2 and the third axis of general extension A3 are mutually parallel, being orthogonal to the first axis of general extension Al.
- the bundle of tubes 10, 10a, 10b is provided with fins 15 which are interposed between two successive tubes 10, 10a, 10b, to promote a heat exchange between the air flow FA and the tubes 10, 10a, 10b, when a passage of the airflow FA through the exchanger of heat 5.
- the heat exchanger 5 comprises a first mouth 16 through which the refrigerant fluid FR enters the interior of the heat exchanger 5.
- the first mouth 16 constitutes an intake port of the refrigerant fluid FR in a first chamber 13 which is defined inside the manifold 8.
- the heat exchanger 5 comprises a second mouth 17 through which the coolant FR is discharged out of the heat exchanger 5.
- heat exchanger 5 is a heat exchanger inside which the cooling fluid FR flows in a path arranged in "I".
- the tubes 10 are arranged parallel to each other and each extend in a third plane P3 which is perpendicular to the first plane PI and which is parallel to the first axis of general extension Al.
- the tubes 10 are moreover aligned forming a row which extends along a direction perpendicular to the third plane P3.
- the tubes 10 extend between a first end 101 which is in fluid communication with the return box 9 and a second end 102 which is in fluid communication with the manifold 8.
- the return box 9 forms the base of the "I” while the manifold 8 forms the top of the "I".
- the second mouth 17 equips the return box 9.
- the refrigerant fluid FR enters the interior of the heat exchanger 5 through the first mouth 16 that includes the manifold 8. Then, the refrigerant fluid FR is distributed along the manifold 8 along the second extension axis A2 by a homogenizer 18 of the coolant distribution. Then, the refrigerant FR flows between the manifold 8 and the return box 9 by taking the tubes 10. Finally, the refrigerant FR is discharged out of the heat exchanger 5 through the second mouth 17 of the return box 9.
- the heat exchanger is a heat exchanger inside which the refrigerant fluid FR flows in a path arranged in "U".
- the tubes 10a, 10b are arranged parallel to each other by being distributed in two layers 11, 12, of which a first ply 11 of first tubes 10a and a second ply 12 of second tubes 10b.
- the first ply 11 and the second ply 12 are formed inside respective planes which are parallel to each other and parallel to the first plane Pl.
- the first tubes 10a of the first ply 11 extend between a first end 101 which is fluidic communication with the deflection box 9 and a second end 102 which is in fluid communication with the first chamber 13.
- the second tubes 10b of the second ply 12 extend between a third end 103 which is in fluid communication with the box. 9 and a fourth end 104 which is in fluid communication with a second chamber 14, also delimited inside the manifold 8.
- the first chamber 13 and the second chamber 14 are contiguous and sealed with each other .
- the first chamber 13 extends along a fourth axis of general extension A4 and the second chamber 14 extends along a fifth axis of general extension A5.
- the fourth axis of general extension A4 and the fifth axis of general extension A5 are parallel to each other and parallel to the second axis of general extension A2.
- the fourth axis of general extension A4 and the fifth axis of general extension A5 together define a second plane P2, which is preferably orthogonal to the first plane P1.
- the reference box 9 forms the base of the "U” whereas that the first ply 11 and the second ply 12 of tubes 10a, 10b form the branches of the "U", the first chamber 13 and the second chamber 14 forming the ends of the "U".
- the second mouth 17 equips the second chamber 14 of the manifold 8.
- the refrigerant FR enters the interior of the heat exchanger 5 through the first mouth 16 of the first chamber 13, being distributed along the box collector 8 according to the second axis of general extension A2 by the homogenization device 18 of the refrigerant distribution. Then, the refrigerant FR flows between the first chamber 13 of the manifold 8 and the return box 9 by borrowing the first tubes 10a of the first ply 11. Then, the refrigerant FR flows between the box 9 and the second chamber 14 by borrowing the second tubes 10b of the second ply 12. Finally, the refrigerant FR is discharged from the heat exchanger 5 through the second mouth 17, after having passed through the second chamber 14.
- a first tube 10a of the first ply 11 is aligned with a second tube 10b of the second ply 12 inside the third plane P3 which is perpendicular to the first plane P1 and which is parallel to the first axis of general extension al.
- the manifold 8 houses the homogenization device 18 of the distribution of the refrigerant FR inside the tubes 10, 10a, 10b.
- a homogenizing device 18 of the refrigerant distribution is intended to homogeneously distribute the refrigerant fluid FR, in the two-phase liquid-gas state, along the collecting box 8 and ultimately inside the set of tubes 10, 10a, 10b.
- Such a homogenization device 18 of the distribution is more particularly intended to homogeneously distribute the refrigerant fluid FR inside the heat exchanger 5, including when the refrigerant fluid FR is present inside the heat exchanger 5 in two distinct phases, liquid and gas, in respective variable proportion.
- the homogenization device 18 of the distribution comprises, for example, a duct 19 extending along a sixth axis of general extension A6, parallel to or even coincidental with the second axis of FIG. general extension A2 and / or the fourth axis of general extension A4, between a first end portion 20 and a second end portion 21 of the duct 19.
- the duct 19 has a length L taken between the first end portion 20 and the second end portion 21, parallel to the sixth axis of general extension A6.
- the length L of the duct 19 is equivalent to a length of the manifold 8 taken along the second general extension axis A2 and / or to a length of the return box 9 taken along the third axis of general extension A3 .
- any element extending along the sixth axis of general extension A6 is defined as longitudinal, which is defined by the largest dimension of the duct 19.
- the term transversal is understood to mean any element that extends inside the duct.
- a transverse plane Pt which is orthogonal to the general extension axis A6.
- the first end portion 20 is formed of one end of the conduit 19, while the second end portion 21 is formed of the other end of the conduit 19, longitudinally opposite the first end portion 20.
- the first terminal portion 20 is intended to be placed in fluid communication with the first mouth 16 of the heat exchanger 5.
- the first mouth 16 houses the conduit 19, the first end portion 20 is in fluid communication with a pipe of the refrigerant circuit 1.
- the second end portion 21 is blind and forms a cul-de-sac with regard to the circulation of the refrigerant fluid FR inside the conduit 19.
- the duct 19 is equipped with at least one window 29 through which the refrigerating fluid FR is able to be admitted inside the duct 19. More preferably, the window 29 equips the first end portion 20. According to FIG. another variant embodiment, the window 29 equips any zone of the duct 19 taken between the first end portion 20 and the second end portion 21.
- the duct 19 is for example formed in a cylinder, or in a parallelepiped or in any other form having an axis of symmetry A7, which is preferably parallel to or even coincidental with the sixth axis of general extension A6.
- the duct 19 comprises a peripheral wall 23 which is of cylindrical cross section when the duct 19 is in the form of a cylinder of parallelepipedal cross section when the duct 19 is a parallelepiped.
- the peripheral wall 23 is that which gives the overall shape of the duct 19.
- the conduit 19 constitutes an envelope which delimits an internal space 24 around which the conduit 19 is formed.
- the duct 19 borders the internal space 24 that the duct 19 surrounds.
- the internal space 24 is for example cylindrical or parallelepipedic, or of any other shape formed around the axis of symmetry A7.
- the peripheral wall 23 comprises orifices 22 which are formed through the peripheral wall 23 of the duct 19.
- the orifices 22 are preferably aligned along an alignment axis A8 which is parallel to the sixth axis of general extension A6 and / or to the axis of symmetry A7.
- the orifices 22 are equidistant from one another.
- the orifices 22 are spaced from each other by a variable distance.
- the orifices 22 are for example orifices of circular section, but are likely to be of any conformation, rectangular, elliptical, oblong in particular.
- Each orifice 22 provides the cooling fluid FR with a passage section D through which the refrigerant FR flows to circulate from the internal volume 24 of the conduit 19 out of the latter, that is to say towards the volume defined by the manifold 8.
- each orifice 22 has a passage section D which is the surface that the refrigerant fluid FR is able to cross during its evacuation out of the conduit 19.
- the passage section D is defined as a surface the orifice 22 taken along an orifice plane P4 which contains the orifice 22 and which is parallel to the sixth axis of general extension A6.
- the orifice plane P4 is a plane tangential to the duct 19 which comprises at least one orifice 22.
- the passage section D is shaped in a circle.
- the duct 19 is provided with N orifices 22, with N> 2.
- the duct 19 is equipped with at least two orifices 22.
- the number N of the orifices 22 is of the order of a number of tubes 10, or a number of first tubes 10a, or a number of second tubes 10b of the heat exchanger 5.
- the number N of the orifices 22 is equal to the number of tubes 10, or a number of first tubes 10a, or a number of second tubes 10b of the heat exchanger 5.
- the N orifices 22 are of a respective passage section D which are distinct from one another.
- the orifices 22 are distributed in first-type orifices 22a having a first passage section D1 and in second-type orifices 22b having a second passage section D2, distinct from the first section. passage Dl.
- first-type orifice 22a has a first passage section D1
- second-type orifice 22b has a second passage section D2, which is different from the first passage section D1.
- the second passage section D2 is strictly greater than the first passage section D1.
- the second passage section D2 is between 1.5 times the first passage section D1 and twice the second passage section D1.
- orifices 22 are distributed in a first group G1 of first type orifices 22a, preferably adjacent to each other, and in a second group G2 of second type orifices 22b, preferably adjacent to each other.
- the duct 19 comprises nine orifices 22, of which six orifices of the first type 22a provide the fluid refrigerant FR a first passage section Dl and three holes of second type 22b providing the refrigerant fluid FR a second passage section D2, which is greater than the first passage section Dl.
- the first group G1 of orifices 22 has six orifices of first type 22a and the second group G2 of orifices 22 has three orifices of second type 22b.
- the orifices 22 are distributed in first-type orifices 22a having a first passage section D1, in second type orifices 22b having a second passage section D2 and third type orifices 22c having a third passage section D3.
- first-type orifice 22a has a first passage section D1
- second-type orifice 22b has a second passage section D2 that is different from the first passage section D1 and less
- third type orifice 22c has a third passage section D3 which is different from the first passage section D1 and the second passage section D2.
- the second passage section D2 is strictly greater than the first passage section D1 and the third passage section D3 is strictly greater than the second passage section D2.
- the second passage section D2 is between 1.5 times the first passage section D1 and twice the first passage section D1
- the third passage section D3 is between 1.5 times the second passage section D2 and twice the second passage section D2.
- X orifices of first type 22a have a first passage section D1
- Y orifices of second type 22b have a second passage section D2
- the orifices 22 are distributed in a first group G1 of first type orifices 22a, preferably adjacent to each other, in a second group G2 of second type orifices 22b , preferably adjacent to each other, and a third group G3 of third type orifices 22c preferentially adjacent to each other.
- the first group G1 has a number of X orifices of the first type 22a
- the second group G2 has a number of Y orifices of the second type 22b
- the duct 19 comprises nine orifices 22, including three first-type orifices 22a providing the refrigerating fluid FR with a first passage section D1, three second-type orifices 22b providing the refrigerant fluid FR with a second passage section D2, which is strictly greater than the first section of the passage; passage Dl and three orifices of third type 22c providing the refrigerant fluid FR a third passage section D3, which is strictly greater than the second passage section D2.
- each of the groups G1, G2, G3 of orifices 22 have three orifices 22.
- the orifices 22 have passage sections D1, D2, D3, D9 all distinct from one another.
- the passage section Di, with i G (1, ..., N), of an orifice 22 is greater than the passage section Di-1 of the orifice 22 which adjoins it and which is closer of the window 29 and the passage section Di is smaller than the passage section Di + 1 of the orifice 22 which adjoins it and which is further from the window 29, the orifices 22 being listed from the window 29 to the second part terminal 21.
- the orifices 22 cumulatively verify the following relations [1] and [2]:
- the passage section of the orifices 22 is at least constant until one meets at least one orifice 22 whose passage section D exceeds the passage section D of the previous orifice 22.
- the conduit 19 comprises for example:
- the passage section Di of the orifices 22 follows a function F, which is an increasing function of a distance Wi taken between the window 29 and a center C of each orifice 22.
- the window 29 equipping preferably the first end portion 20 of conduit 19, the distance Wi of the orifices 22 is preferably measured between the window 29 and the center of the orifice 22. It follows from these provisions that, by considering two orifices 22 in succession, the orifice 22 furthest from the window 29, that is to say located at a second distance W2 from the window 29, has a passage surface D which is greater than the passage surface D of another orifice 22 closest to the window 29, c i.e., located at a first distance W1 from the window 29.
- the function giving the passage surface D of the orifices 22 as a function of the distance W between the window 29 and the orifices 22 is a step function, as illustrated in FIGS. 5 and 7.
- the function is a linear function of the distance W, as illustrated in FIG. 9.
- the duct 19 is capable of being provided with orifices 22 distributed in a plurality of successive groups G of orifices, the orifices 22 of the same group being of the same passage surface D (to manufacturing tolerance close), the diameter of the orifices 22 of successive groups being increasing from one group to another.
- the small size of the orifices 22 disposed near the window 29, or the first end portion 20 equipped with the window 29 prevents the refrigerating fluid FR from preferentially borrowing the tubes 10, 10a, 10b supplied by the orifices 22 the closest to the window 29, so that a sufficient amount of refrigerant FR continues its way inside said homogenizer 18 to feed homogeneously all the tubes 10, 10a, 10b, and especially those farthest from window 29.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1661747A FR3059397B1 (fr) | 2016-11-30 | 2016-11-30 | Dispositif de distribution d’un fluide refrigerant a l’interieur de tubes d’un echangeur de chaleur constitutif d’un circuit de fluide refrigerant |
PCT/FR2017/053309 WO2018100306A1 (fr) | 2016-11-30 | 2017-11-30 | Dispositif de distribution d'un fluide réfrigérant à l'intérieur de tubes d'un échangeur de chaleur constitutif d'un circuit de fluide réfrigérant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3548828A1 true EP3548828A1 (fr) | 2019-10-09 |
EP3548828B1 EP3548828B1 (fr) | 2023-01-11 |
Family
ID=58401701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17817793.7A Active EP3548828B1 (fr) | 2016-11-30 | 2017-11-30 | Dispositif de distribution d'un fluide réfrigérant à l'intérieur de tubes d'un échangeur de chaleur constitutif d'un circuit de fluide réfrigérant |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3548828B1 (fr) |
CN (1) | CN110168302A (fr) |
FR (1) | FR3059397B1 (fr) |
WO (1) | WO2018100306A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6576577B1 (ja) * | 2018-06-11 | 2019-09-18 | 三菱電機株式会社 | 冷媒分配器、熱交換器及び空気調和装置 |
CN110966804B (zh) * | 2018-09-30 | 2021-09-24 | 浙江三花智能控制股份有限公司 | 换热器 |
WO2020255187A1 (fr) * | 2019-06-17 | 2020-12-24 | 三菱電機株式会社 | Appareil de conditionnement d'air |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04371798A (ja) * | 1991-06-21 | 1992-12-24 | Hitachi Ltd | 熱交換器 |
JP3879032B2 (ja) * | 1997-03-27 | 2007-02-07 | 三菱電機株式会社 | 冷却装置 |
JP2001050611A (ja) * | 1999-08-10 | 2001-02-23 | Ebara Corp | プレート式熱交換器 |
CA2323026A1 (fr) * | 2000-10-10 | 2002-04-10 | Long Manufacturing Ltd. | Echangeurs thermiques dotes de cloisons distributrices de flux a leur orifice |
CN100451495C (zh) * | 2007-05-10 | 2009-01-14 | 上海交通大学 | 压缩制冷降膜式蒸发器的制冷剂均匀分配器 |
CN101487669B (zh) * | 2008-01-17 | 2012-08-22 | 开利公司 | 包括多管式分配器的热交换器 |
US8485248B2 (en) * | 2009-12-15 | 2013-07-16 | Delphi Technologies, Inc. | Flow distributor for a heat exchanger assembly |
JP2012002475A (ja) * | 2010-06-21 | 2012-01-05 | Mitsubishi Electric Corp | 冷媒分配器及びこの冷媒分配器を用いたヒートポンプ装置 |
CN102313400A (zh) * | 2011-07-21 | 2012-01-11 | 广东美的电器股份有限公司 | 微通道平行流换热器 |
JP2013057426A (ja) * | 2011-09-07 | 2013-03-28 | Hitachi Appliances Inc | プレート式熱交換器及びこれを備えた冷凍サイクル装置 |
KR101372096B1 (ko) * | 2011-11-18 | 2014-03-07 | 엘지전자 주식회사 | 열교환기 |
CN102706181A (zh) * | 2012-06-12 | 2012-10-03 | 三一重机有限公司 | 散热器及工程机械 |
US9568225B2 (en) | 2013-11-01 | 2017-02-14 | Mahle International Gmbh | Evaporator having a hybrid expansion device for improved aliquoting of refrigerant |
CN204555744U (zh) * | 2015-02-27 | 2015-08-12 | 广东美的制冷设备有限公司 | 平行流换热器和空调器 |
CN106123409B (zh) * | 2016-08-22 | 2018-09-11 | 杭州三花微通道换热器有限公司 | 制冷剂分配装置和平行流换热器 |
-
2016
- 2016-11-30 FR FR1661747A patent/FR3059397B1/fr active Active
-
2017
- 2017-11-30 EP EP17817793.7A patent/EP3548828B1/fr active Active
- 2017-11-30 CN CN201780082483.6A patent/CN110168302A/zh active Pending
- 2017-11-30 WO PCT/FR2017/053309 patent/WO2018100306A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3059397A1 (fr) | 2018-06-01 |
WO2018100306A1 (fr) | 2018-06-07 |
EP3548828B1 (fr) | 2023-01-11 |
FR3059397B1 (fr) | 2019-07-26 |
CN110168302A (zh) | 2019-08-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2902507A1 (fr) | Echangeur de chaleur | |
EP3548828B1 (fr) | Dispositif de distribution d'un fluide réfrigérant à l'intérieur de tubes d'un échangeur de chaleur constitutif d'un circuit de fluide réfrigérant | |
FR2912811A1 (fr) | Echangeur de chaleur pour fluides a circulation en u | |
WO2018100302A1 (fr) | Dispositif d'homogénéisation de la distribution d'un fluide réfrigérant à l'intérieur de tubes d'un échangeur de chaleur constitutif d'un circuit de fluide réfrigérant | |
FR3059410B1 (fr) | Organe de mixage constitutif d'un dispositif d'homogeneisation de la distribution d'un fluide refrigerant a l'interieur de tubes d'un echangeur de chaleur | |
FR3061283B1 (fr) | Dispositif de repartition d’un fluide refrigerant pour une boite collectrice d’un echangeur de chaleur | |
EP3548824B1 (fr) | Dispositif d'homogénéisation de la distribution d'un fluide réfrigérant à l'intérieur de tubes d'un échangeur de chaleur constitutif d'un circuit de fluide réfrigérant | |
FR3061282B1 (fr) | Echangeur de chaleur constitutif d’un circuit de changeur fluide refrigerant | |
WO2018100299A1 (fr) | Dispositif d'homogénéisation de la distribution d'un fluide réfrigérant à l'intérieur de tubes d'un échangeur de chaleur constitutif d'un circuit de fluide réfrigérant | |
FR3059404B1 (fr) | Dispositif de distribution d'un fluide refrigerant a l'interieur d'une boite collectrice d'un echangeur thermique pour une installation de conditionnement d'air d'un vehicule | |
FR3068453B1 (fr) | Echangeur de chaleur multi-passes constitutif d'un circuit de fluide refrigerant | |
FR3059405B1 (fr) | Dispositif de distribution d'un fluide refrigerant a l'interieur d'une boite collectrice d'un echangeur thermique | |
FR3059394B1 (fr) | Dispositif d’homogeneisation de la distribution d’un fluide refrigerant a l’interieur de tubes d’un echangeur de chaleur constitutif d’un circuit de fluide refrigerant | |
WO2018100298A1 (fr) | Echangeur de chaleur constitutif d'un circuit de fluide réfrigérant | |
FR3059414A1 (fr) | Dispositif d’homogeneisation de la distribution d’un fluide refrigerant a l’interieur de tubes d’un echangeur de chaleur constitutif d’un circuit de fluide refrigerant | |
EP3568656B1 (fr) | Evaporateur, notamment pour circuit de climatisation de véhicule automobile, et circuit de climatisation correspondant | |
FR3059413A1 (fr) | Echangeur de chaleur constitutif d'un circuit de fluide refrigerant | |
FR3061281B1 (fr) | Boite collectrice d'un fluide refrigerant comprenant au moins un dispositif de positionnement angulaire d'un conduit | |
FR3059412A1 (fr) | Organe de mixage constitutif d'un dispositif d'homogeneisation de la distribution d'un fluide refrigerant a l'interieur de tubes d'un echangeur de chaleur | |
EP3271679B1 (fr) | Boite collectrice pour échangeur de chaleur, notamment échangeur de chaleur de véhicule automobile, et échangeur contenant une telle boite collectrice | |
FR3059409B1 (fr) | Dispositif d'homogeneisation de la distribution d'un fluide refrigerant a l'interieur de tubes d'un echangeur de chaleur constitutif d'un circuit de fluide refrigerant | |
WO2018100301A1 (fr) | Dispositif de mixage d'un fluide réfrigérant à l'intérieur d'une boîte collectrice d'un échangeur thermique | |
FR3006432A1 (fr) | Echangeur de chaleur |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190614 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20201020 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20220727 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602017065455 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1543675 Country of ref document: AT Kind code of ref document: T Effective date: 20230215 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20230111 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1543675 Country of ref document: AT Kind code of ref document: T Effective date: 20230111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230528 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230511 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230411 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230511 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230412 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602017065455 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 |
|
26N | No opposition filed |
Effective date: 20231012 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20231124 Year of fee payment: 7 Ref country code: DE Payment date: 20231107 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20231130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230111 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20231130 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |