EP4290161A1 - Verfahren zur formung eines kapillaren-sammler-wärmetauscher-konvertor-wärmetauscher-kapillar-anordnung - Google Patents

Verfahren zur formung eines kapillaren-sammler-wärmetauscher-konvertor-wärmetauscher-kapillar-anordnung Download PDF

Info

Publication number
EP4290161A1
EP4290161A1 EP23152795.3A EP23152795A EP4290161A1 EP 4290161 A1 EP4290161 A1 EP 4290161A1 EP 23152795 A EP23152795 A EP 23152795A EP 4290161 A1 EP4290161 A1 EP 4290161A1
Authority
EP
European Patent Office
Prior art keywords
capillary
capillaries
inflow
distribution manifold
section
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.)
Pending
Application number
EP23152795.3A
Other languages
English (en)
French (fr)
Inventor
Milosz Wlodarczyk
Marcin Kowacz
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.)
Igloo Spolka Z Ograniczona Odpowiedzialnoscia
Original Assignee
Igloo Spolka Z Ograniczona Odpowiedzialnoscia
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
Priority claimed from PL441382A external-priority patent/PL245006B1/pl
Application filed by Igloo Spolka Z Ograniczona Odpowiedzialnoscia filed Critical Igloo Spolka Z Ograniczona Odpowiedzialnoscia
Publication of EP4290161A1 publication Critical patent/EP4290161A1/de
Pending legal-status Critical Current

Links

Images

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
    • 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
    • F28F9/0275—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 branch pipes
    • 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes

Definitions

  • the object of the invention is a collector of heat exchanger of heat machines, such as heat pumps, air dryers, condensing units, and similar machines, in particular those that are characterized by variable work efficiency. Furthermore, the object of the invention is a set of capillaries of heat exchanger through which a cooling medium is distributed from the collector to the heat exchanger sections of the heat machines. The object of the invention is also a method for shaping a set of capillaries of collector of heat exchanger.
  • a refrigerant fed by compressor enters a collector of heat exchanger of heat machine, from which it enters a respective heat exchanger section by means of capillaries.
  • the capillaries for each section must be the same length, what causes that manufacturers of heat machines and manufacturers of heat exchangers use the capillaries that are shaped in the simplest loop geometry and a distribution of a cooling medium runs with a significant change in height.
  • This solution works well in devices with constant efficiency.
  • the commonly used solution creates the problem of oil build-up, which is a by-product of an operation of compressor of heat machine.
  • Publication US4770240A discloses a solution involving a heat exchanger collector with a square cross-section that has circular sections for connection to individual heat exchanger sections.
  • the disclosed invention does not include a solution in which the flow resistance is measured so that each section of the heat exchanger operates at high efficiency.
  • Publication US20100059216A1 discloses an invention of a modular heat exchanger having a set of capillaries of different lengths supplying a cooling medium to the heat exchanger collector.
  • the invention is designed for operation under significant, constant load and/or with temperature changes.
  • a set of capillaries comprises tubes of equal diameter arranged in rectilinear, siphon shaped sections. Such a design of capillaries can lead to oil build-up at the lowest points of the system.
  • the purpose of the invention is to develop a geometry for the capillaries that prevents or reduces the formation of oil build-up and makes it possible to improve the performance of the thermal equipment.
  • the invention should be particularly applicable when the heat exchanger has a considerable height, a large number of sections and a small number of manifolds since such a device usually has long capillary tubes hanging down, which become a siphon with a high difference in inlet and outlet heights.
  • the idea of the invention is a method for shaping a set of capillaries of collector of heat exchanger of heat machine with the set of capillaries distributing a cooling medium to heat exchanger sections, the set comprising a distribution line connected to a cooling medium inflow and having flow distribution lines, a set of n-distribution manifolds connected to the distribution lines, each having a set of m-capillaries formed of a capillary tube, each of which is connected at one end to its associated distribution manifold, and at another end to its associated inflow connector of the section of the heat exchanger outflow connector of which is connected to a return line of the cooling medium of the section of the heat exchanger, the method for shaping the set of capillaries comprising steps: locating a position of each inflow connector of the capillaries of the set in relation to the divider of the set of n-distribution manifolds to which the capillaries are attached, determining a distance from each inflow connector of the capillary of the set of capillaries to
  • the capillary comprising middle section, an upper inflow bend and a lower inflow bend is shaped in such a way that the middle section of the capillary that has the inflow connector situated farthest from the distribution manifold is given a shape having a fewest number of curved or curvilinear fragments manifesting in a shape of a straight line whereas a middle section of capillary that has the inflow connector situated near the distribution manifold with respect to the inflow connector situated farthest from the distribution manifold is given a shape having a greater number of curvilinear fragments forming a helix that has a portion of a coil and/or at least one coil, the upper inflow bend and the lower inflow bend and whereas the middle section of each subsequent capillary, inflow connector of which is located even closer to the distribution manifold, going towards the distribution manifold, than the inflow connector of the capillary adjacent to the capillary, which the inflow connector is located farthest
  • An alternative method of determining the shapes of capillaries is the approach according to which a middle section of capillary that has the inflow connector situated nearest to the distribution manifold is given a shape having a largest number of curvilinear fragments forming a shape of helix having a largest number of coils, the upper inflow bends and the lower inflow bends, whereas to a middle section of farther capillary that has the inflow connector situated farther on the distribution manifold with respect to the inflow connector situated nearest to the distribution manifold is deducted a portion of the coil and/or at least one coil compared to the previous capillary, whereas a size of the capillary with coils determined by a diameter of the capillary tube, a number of coils, an outer diameter of coils and a spiral lead of the capillary helix are selected experimentally in such a way that the flow resistance of the cooling medium of each of the capillary tubes of the capillaries of the set of the capillaries located farther from the distribution manifold does not
  • Another method for shaping a set of capillaries is that the capillary tube of the capillary having an inflow connector situated farthest from the distribution manifold of all the capillaries belonging to and attached to their distribution manifold, formed from the upper inflow bend, the lower inflow bend and the middle section of the capillary tube having a largest cross-section area, whereas next capillaries, going towards the distribution manifol, are formed from a capillary tube with a smaller cross-section area, selecting the cross-section experimentally, compared to the capillary tube of the previous capillary in such a way that the flow resistance of the cooling medium of each of the capillary tubes of the capillaries of the set of the capillaries having inflow connectors located closer to the distribution manifold than the inflow connector located farthest from the distribution manifold, does not differ by more than 30%, regardless of location of the inflow connectors, from the flow resistance of the cooling medium of the capillary tube of the capillary with the largest cross-section area, connected to the
  • an embodiment is preferred that the capillary tube of the capillary having the inflow connector located closest to the distribution manifold among all the capillaries belonging to and connected to their distribution manifold, is formed from the upper inflow bend, the lower inflow bend and the middle section from the capillary tube with the smallest cross-section area, and next capillaries, going away from the distribution manifold, is formed from a capillary tube with a larger cross-section area, selecting the cross-section experimentally, as compared to the capillary tube of the previous capillary, in such a way that the flow resistance of the cooling medium of each of the capillary tubes of the capillaries of the set of the capillaries located farther from the distribution manifold does not differ by more than 30%, regardless of location of the inflow connectors, from the flow resistance of the cooling medium of the capillary tube of the capillary having the smallest cross-section area connected to the inflow connector of the heat exchanger section and located closest to the distribution manifold of the same
  • the idea of the invention is also a set of capillaries of collector of heat exchanger connected to the collector of the heat exchanger of a heat machine comprising sections equal in number to a number of capillaries having a length not less than the distance of each inflow connector of the capillary of the set of capillaries and measured from a distribution manifold to associated inflow connector, each increased by lengths of bends of a capillary tube of capillaries, and shaped according to the method for shaping the set of the capillaries from the capillary tube, each capillary tube being connectable at one end to the associated distribution manifold and at the other end being connectable to the associated inflow connector of section of the heat exchanger, an outflow connector of which is connected to a cooling medium return line of section of the heat exchanger, characterised in that the capillary tubes of the capillaries connectable to the distribution manifold with the inflow connectors of the heat exchanger section and located closer to the distribution manifold of the set of the capillaries, each comprising a middle section
  • a middle section of the capillary having the inflow connector located farthest from the distribution manifold has a shape with a smallest number of curvilinear fragments
  • a middle section of each capillary the inflow connector of which is located closer to the distribution manifold than the capillary inflow connector farther from the distribution manifold has more curvilinear fragments forming a helix shape having a portion of coil and/or at least one coil and the straight section, the upper inflow bends and the lower inflow bends
  • a middle section of each subsequent capillary inflow connector of which is located even closer to the distribution manifold, going towards the distribution manifold, than the inflow connector of the capillary adjacent to the capillary the inflow connector of which is farthest away has a portion of the coil and/or at least one more coil than the preceding capillary.
  • the middle section of the capillary, inflow collector of which is situated closest to the distribution manifold has a shape with a greatest number of curvilinear fragments forming a shape of a helix having the most coils, the upper inflow bend and the lower inflow bend, whereas the middle section of each subsequent capillary, the inflow connector of which is located farther from the distribution manifold, going in direction away from the distribution manifold than the inflow connector of a capillary closest to the distribution manifold, has the portion of coil and/or at least one coil less than the previous capillary, whereby a size of a capillary with turns determined by a diameter of the capillary tube, a number of coils, an outside diameter of the coils and a spiral lead of the capillary helix is selected experimentally in such a way that the flow resistance of the cooling medium of each of the capillary tubes of the capillaries of the set of the capillaries located farther from the distribution manifold did not differ by more than
  • the capillary having the inflow connector situated farthest from the distribution manifold of all the capillaries belonging to and connected to their distribution manifolds is formed of an upper inflow bend, a lower inflow bend and a middle section made of capillary tube with the largest cross-section area, whereas next capillaries, going towards the distribution manifold, are formed of the capillary tube with a smaller cross-section area, selecting the cross-section experimentally, as compared to the capillary tube of the previous capillary in such a way that the flow resistance of the cooling medium of each of the capillary tubes of the set of the capillaries did not differ by more than 30%, regardless of the location of the inflow connectors, with respect to the flow resistance of the cooling medium of the capillary pipe with the largest cross-section area connected to the inflow connector of the heat exchanger section situated farthest from the distribution manifold of the same set of the capillaries, whereby the capillary having the inflow connector farthest from the manifold is made
  • a further desirable feature of the invention is that the capillary, which has the inflow connector situated closest to the distribution manifold of all the capillaries belonging to and connected to their distribution manifold, is formed of the upper inflow bend, the lower inflow bend and the middle section of the capillary tube having a smallest cross-section area, whereas next capillaries, going away from the distribution manifold, are formed of the capillary tube with a larger cross-section area, selecting the cross-section experimentally, as compared to the capillary tube of a previous capillary in such a way that the flow resistance of the cooling medium of each of the capillary tubes of the capillaries of the set of the capillaries situated farther from the distribution manifold did not differ by more than 30%, regardless of the location of the inflow connectors with respect to the flow resistance of the cooling medium of the capillary tube with the smallest cross-section area connected to the inlet connector of the heat exchanger section located closest to the distribution manifold of the same set of the capillaries, whereby the ca
  • the middle section of the capillary tube of capillaries having the inflow connector located closer to the manifold than the inflow connector located farthest from the manifold has shape of a spatial helix.
  • the idea of the invention is a collector of heat exchanger of heat machine having a set of capillaries and distributing a cooling medium to a chosen section of the heat exchanger, the collector comprising a distribution line connected to a cooling medium inflow with flow distribution lines, a set of n- distribution manifolds connected to the distribution lines, each having a set of m-capillaries formed of a capillary tube, each of which is connected at one end to its associated distribution manifold, whereas another end is connected to its associated inflow connector of the heat exchanger section, outflow connector of which is connected to the return line of the cooling medium of the section of the heat exchanger, characterised in that the capillary tubes of the capillaries connecting the distribution manifold to the inflow connectors of the section of the heat exchanger located closer to the manifold of the set of the capillaries have more curvilinear fragments and have a shape more deviating from a straight line than a shape of the capillary tube of the capillary and more curviline
  • the collector of the heat exchanger of the heat machine comprises sections equal in number to the number of capillaries having a length not less than the distance of each inflow connector of the capillary of the set of capillaries measured from the manifold plus the lengths of the bends of the capillary tube of the capillaries, and each of the sections cut from the capillary tube is connected at one end to the manifold of the selected section of the heat exchanger, and the other end of each of the sections cut from the capillary tube extends to a point of connection with the associated inflow connector of the capillary of the set of capillaries, whereas the capillary situated closest to the manifold, formed from the upper inflow bend, the lower inflow bend and the linear section, has the capillary tube with the smallest cross-section area.
  • the middle section of the capillary tube of the capillary having the inflow connector situated farthest from the manifold among all the capillaries belonging to and connected to their manifold is formed from a linear section of the capillary tube.
  • a middle section of the capillary tube of the capillaries having the inflow connector situated closer to the distribution manifold than the inflow connector of capillary situated farthest from the distribution manifold and closer to the manifold than the capillary having a middle section situated farthest from the distribution manifold and associated with their distribution manifold has a shape of a spatial helix deviating more from a straight line than the shape of the capillary tube of the capillary and a greater number of curvilinear fragments and connected to the inflow connectors of the section of the heat exchanger located farther from the manifold of the same set of m-capillaries as compared to a position of the inflow connector of the capillary situated farthest from the distribution manifold.
  • capillaries of different shapes preferably a shape of helix having different number of coils, and/or diameters made of capillary tube
  • Such heat machines operate more efficiently as compared to the current ones and all their exchanger sections operate at similar efficiencies, which contributes to extending the lifespan of heat machines.
  • the benefits of the invention are particularly apparent in heat machines of the heat pump type, operating under variable operating conditions.
  • Fig. 1 and 2 show fragments of lamellar heat exchanger with a collector of lamellar heat exchanger of heat machine
  • Fig. 3 and 4 show an enlarged view of connection of capillary tube with various types of distribution manifolds
  • Fig. 5 shows a fragment of lamellar heat exchanger with a collector of lamellar heat exchanger having a cascade distribution line
  • Fig. 6 - 15 show various embodiments of capillaries
  • Fig. 16 shows an enlarged view of connection of distribution manifold with capillary lines in a shape of helical lines
  • Fig. 17 shows an enlarged view of connection of distribution manifold and capillary tubes of different cross-section areas
  • Fig. 1 and 2 show fragments of lamellar heat exchanger with a collector of lamellar heat exchanger of heat machine
  • Fig. 3 and 4 show an enlarged view of connection of capillary tube with various types of distribution manifolds
  • Fig. 5 shows a fragment of lamellar
  • FIG. 18 shows an embodiment of heat machine having a lamellar heat exchanger equipped with distribution manifolds having capillary tubes of different shapes and/or different cross-section areas
  • Fig. 19 shows an example of heat machine with a tubular exchanger equipped with distribution manifolds having capillary tubes of different shapes and/or different cross-section areas
  • Fig. 20 shows an embodiment of microchannel heat exchanger of heat machine equipped with distribution manifolds having capillary tubes of different shapes and/or different cross-section areas.
  • Figs. 1 and 2 show a fragment of lamellar heat exchanger 10 with a collector 20 of the heat lamellar heat exchanger 10 of heat engine 5, 105 with a distribution line 8, presented as an example with a slatted distribution line, with flow-through distribution lines 27, an inflow 7 of a cooling medium and a set 30 of n-distribution manifolds, for example 31, 131, 32, 33 connected to the distribution lines 27, each with a set 40 of m-capillaries made of a capillary tube 51, for example capillaries 41, 42, 43, 44, and 45, connected to the m-inflow connectors, for example inflow stub tubes or inflow connectors 21, 22, 23, 24, 25, of sections of the heat exchanger 10 as well as a slatted return line 9 with an outflow 6 of the cooling medium connected to the m-outflow connectors, for example outflow connectors 61, 62, 63, 64, 65, of sections of the heat exchanger 10.
  • the capillary tube of the capillary 45 has one straight section 71 of the capillary tube 51 and bends at both ends adapted in shape and dimensions to the inflow connector, whereas the capillary tubes 41, 42, 43, 44 connecting the distribution manifold 31, 32 33 with the inflow connectors 21, 22, 23, 24 of the heat exchanger section located closer to the distribution manifold 31 of the set 40 of m-capillaries 41, 42, 43, 44, 45 have coils formed of the curvilinear fragments and made of the capillary tube 51.
  • the capillary 42 situated closest to the distribution manifold and the inflow connector 22 has four coils and eventually a straight section, whereas capillaries 41 and 43 situated farther away from the distribution manifold have three coil and eventually a straight section whereas the capillary 44 farther away has only one full coil and eventually a straight section.
  • the capillary tubes are made of a thick-walled tube made of copper or its alloy with a small amount of iron, for example CuFe 2 P, with a diameter of 3.0 mm in one embodiment and 5.0 mm in another embodiment, which allows bending at ambient temperature without concerns about flattening the walls.
  • the diameter of the capillary tube is selected from 3.0 mm to 8.0 mm.
  • the capillaries Switching to another physical quantity, namely the cross-section area, the capillaries have 7,0 mm 2 in one embodiment, 15,0 mm 2 in another embodiment and 25,0 mm 2 in yet another embodiment, even 50,0 mm 2 in yet another embodiment.
  • the cross-section area is selected from the range of 7,0 mm 2 to 50,0 mm 2 .
  • the geometry of capillary tubes can also assume spatial shapes inscribed in fragments of the generating surface of other spatial geometric solids, for example ellipsoids or barrels, where the distance from the generating axis increases and then decreases with the change of distance from the inlet or outlet side.
  • each capillary 41, 42, 43, 44, 45 of the set relative to the inflow connector 21, 22, 23, 24, 25 is first determined and distances of each inflow connector 21, 22, 23, 24, 25 of the capillaries 41, 42, 43, 44, 45 of the set 40 of the m-capillaries from the distribution manifold 31, 32, 33 are determined.
  • the larger is the cross-section of the capillary tube section, the lower is the flow resistance of the cooling medium flowing through the capillary tube section of the same length.
  • One of the quantities that allows to compare the flow resistance of the cooling medium through capillary tubes of the same length or different lengths and with different cross-section areas is the pressure drop calculated on the basis of the difference in pressure at the beginning of the capillary tube section and the pressure at the end of the capillary tube section, that is known from the state of the art.
  • Another value that allows to compare the flow resistance of the cooling medium through capillary tubes of the same length or different lengths and having different cross-section areas is the decrease in the flow velocity of the cooling medium stream calculated on the basis of the difference in the flow velocity of the cooling medium stream at the beginning of the capillary tube section and the flow velocity of the cooling medium stream at the end of the capillary section, that is also known in the art.
  • each capillary tube of each capillary going farther away from the distribution manifold than the capillary situated closest to the distribution manifold increases and each capillary is shaped into a capillary with fewer curvilinear fragments going farther away from the distribution manifold than the capillary closest to the distribution manifold.
  • the size of the cross-section area of each capillary and/or the number of curvilinear fragments is selected experimentally by measuring such values as mentioned above, for example by measuring the pressure drop and/or the decrease in the flow velocity of the cooling medium stream, or using other methods of determining the flow resistance of the cooling medium.
  • Figs. 16 and 17 show, in an enlarged view, the connections of various types of capillary tubes to the distribution manifolds.
  • the capillary 545 shown in Fig. 16 with the inflow connector 25 situated farthest from the distribution manifold 31, 131, comprises either a middle section 581 in the form of an out-of-line helix and has the least amount of curvilinear fragments and one or more upper inflow bends 582 and one or more lower inflow bends 583.
  • Each capillary for example a capillary 544, the inflow connector 24 of which is located closer to the distribution manifold 31, 131 as compared to the inflow connector 25, is formed from a middle section 571 having more curvilinear fragments compared to the middle section 581, one or more upper inflow bends 572 and one or more lower inflow bends 573.
  • the flow resistance of the cooling medium through each section of the heat machine in particular the flow resistance of each of the capillary tubes of the capillary set of capillaries connected to the distribution connector(s) situated closest to the distribution manifold does not differ by more than 30%, regardless of the position of the capillary inflow connector in relation to the distribution manifold as compared to the flow resistance of the cooling medium of the capillary tube of the capillaries connected to the inflow connectors of the heat exchanger section located farther from the distribution manifold of the same set of capillaries than the inflow connector(s) closest to the distribution manifold.
  • the capillary 645 shown in Fig. 17 that is situated farthest from the distribution manifold 31, 131 has the largest diameter d5 and is formed of a straight section 681 and one or more upper inflow bends 682 and one or more lower inflow bends 683, and each capillary, for example the capillary 644 that is situated closer to the distribution manifold 31, 131 has a smaller diameter d4, one or more upper inflow bends 672, one or more lower inflow bends 673, and a straight section 671.
  • the capillary 642 that is situated closest to the distribution manifold 31, 131, is formed of a capillary tube 51 having the smallest diameter d2 and the smallest cross section of the middle section and upper inflow bends and lower inflow bends, and each capillary, for example the capillary 641, 643 having a middle section, upper inflow bends and lower inflow bends, is formed of a capillary tube 51 having a larger diameter, and therefore has a larger cross-section area than the cross-section area of the capillary tube 51 of the capillary located closer to the distribution manifold.
  • the diameter d1, d2, d3, d4, d5 of the capillary tube 51 is 3,0 mm in one embodiment and 8,0 mm in another embodiment. In other embodiments, the diameter of the capillary tube is selected from 3,0 mm to 8,0 mm.
  • the diameter of the capillary tubes for the selected set of capillaries and the selected section of the heat exchanger is selected experimentally as mentioned above. Switching to another physical quantity, namely cross-section area, the capillary tubes have an interior cross-section area 7,0 mm 2 in one embodiment, 15,0 mm 2 in another embodiment, and 25,0 mm 2 in yet another embodiment, and even 50,0 mm 2 in yet another embodiment. In yet other embodiments, the internal cross section area of the capillary tube is selected from the range of 7,0 mm 2 to 50,0 mm 2 .
  • Fig. 18 shows an embodiment in which the heat exchanger 10 of the heat machine 5 is a laminar exchanger equipped with a collector 20, to which in one embodiment distribution manifolds 31, 131, 32, 33 with a set 40 of m-capillaries 41, 42 made of capillary tube are connected.
  • the distribution manifolds 31, 131 were connected with a set 540 of m-capillaries 541, 542 made of a capillary tube, whereas in yet another embodiment the distribution manifolds 31, 131 are connected with a set 640 of m-capillaries 641, 642 made of capillary tube.
  • the cooling medium is pumped through a condenser 4 to the collector 20, from which the cooling medium is supplied to the distribution manifolds 31, 131, 32, 33 to which the capillaries are connected.
  • the developed bending geometry of the capillary tube gives the capillary conduit a spatial curvilinear shape, for example a cylindrical helix, conical helix or helix, the diameter, length, spiral lead and number of coils of which depend directly on the distance between the inflow connector of the capillary of the associated exchanger section and the distribution manifold.
  • Fig. 18 illustrates an embodiment in which the capillary tube of the capillary with the inflow connector farthest from the distribution manifold 31, 131 is not only straight but also has the largest diameter and thus the largest cross section area. It is an embodiment in which reducing the flow resistance, in particular the reduction of the flow resistance of the cooling medium of the capillaries located farther from the distribution manifold, is achieved due to the fact that, compared to the shape and diameter of the capillary tubes of the remaining capillaries, the capillary tube of the straight section 71 has a larger diameter and fewer curvilinear fragments, in the extreme case there are no curvilinear fragments.
  • Fig. 19 shows an embodiment in which there is used the invention in exchangers of another type, for example tubular exchangers 710 of heat machines 705 with a collector 720 with a distribution manifold 731 with a set 740 of m-capillaries 741, 742, 743, 744, 745 of various shapes and/or cross sections made of capillary tube.
  • the cooling medium is pumped through the condenser 4 to the collector 720, from which the cooling medium is supplied to the distribution manifold 731, to which the capillaries 741, 742, 743, 744, 745 are connected.
  • Fig. 20 illustrates an embodiment in which the capillary tube of the capillary, inflow connector of which is situated farthest from the distribution manifold 31, 131, is not only straight, but also has the largest diameter and thus the largest cross section area. It is an embodiment in which the diversification of flow resistance, in particular the reduction of the flow resistance of the cooling medium of the capillaries inflow connectors of which are located farther from the distribution manifold, is achieved due to the fact that, compared to the shape and diameter of the capillary tubes of the remaining capillaries, the capillary tube of a straight section has larger diameter and has fewer curvilinear fragments, and in the extreme case there are no curvilinear fragments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP23152795.3A 2022-06-06 2023-01-21 Verfahren zur formung eines kapillaren-sammler-wärmetauscher-konvertor-wärmetauscher-kapillar-anordnung Pending EP4290161A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL441382A PL245006B1 (pl) 2022-06-06 2022-06-06 Sposób formowania zestawu kapilar kolektora wymiennika ciepła, kolektor wymiennika ciepła maszyn cieplnych z zestawem kapilar, zestaw kapilar kolektora wymiennika ciepła
PL44325022 2022-12-22

Publications (1)

Publication Number Publication Date
EP4290161A1 true EP4290161A1 (de) 2023-12-13

Family

ID=85571216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23152795.3A Pending EP4290161A1 (de) 2022-06-06 2023-01-21 Verfahren zur formung eines kapillaren-sammler-wärmetauscher-konvertor-wärmetauscher-kapillar-anordnung

Country Status (1)

Country Link
EP (1) EP4290161A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770240A (en) 1985-05-13 1988-09-13 Stark Manufacturing, Inc. Manifold for a heat exchanger
JP3802136B2 (ja) * 1996-02-26 2006-07-26 三洋電機株式会社 空気調和機
EP1953480A1 (de) * 2005-10-31 2008-08-06 Daikin Industries, Ltd. Wärmetauscher für ausseneinheit
US20100059216A1 (en) 2008-09-08 2010-03-11 Balcke-Durr Gmbh Heat Exchanger In A Modular Construction
DE202011003656U1 (de) * 2011-03-08 2011-05-19 Stiebel Eltron GmbH & Co. KG, 37603 Wärmepumpenvorrichtung
US20160123645A1 (en) * 2014-10-29 2016-05-05 Lg Electronics Inc. Air conditioner and method of controlling the same
DE102014018600A1 (de) * 2014-12-17 2016-06-23 Stiebel Eltron Gmbh & Co. Kg Wärmepumpe mit einem Lamellenrohr-Wärmeübertrager und Lamellenrohr-Wärmeübertrager

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770240A (en) 1985-05-13 1988-09-13 Stark Manufacturing, Inc. Manifold for a heat exchanger
JP3802136B2 (ja) * 1996-02-26 2006-07-26 三洋電機株式会社 空気調和機
EP1953480A1 (de) * 2005-10-31 2008-08-06 Daikin Industries, Ltd. Wärmetauscher für ausseneinheit
US20100059216A1 (en) 2008-09-08 2010-03-11 Balcke-Durr Gmbh Heat Exchanger In A Modular Construction
DE202011003656U1 (de) * 2011-03-08 2011-05-19 Stiebel Eltron GmbH & Co. KG, 37603 Wärmepumpenvorrichtung
US20160123645A1 (en) * 2014-10-29 2016-05-05 Lg Electronics Inc. Air conditioner and method of controlling the same
DE102014018600A1 (de) * 2014-12-17 2016-06-23 Stiebel Eltron Gmbh & Co. Kg Wärmepumpe mit einem Lamellenrohr-Wärmeübertrager und Lamellenrohr-Wärmeübertrager

Similar Documents

Publication Publication Date Title
EP3228971B1 (de) Spiralwärmetauscher
CA1183519A (en) Heat exchanger
US20110094720A1 (en) Shell-and-tube heat exchanger with helical baffles
EP2362176B1 (de) Mikrokanalwärmetauscher mit einstellbarem Verteilrohr
US20130299132A1 (en) Heat exchanger assembly and method of manufacturing therefor
CN101965496A (zh) 改进流量分配的换热器管结构
CN112166292A (zh) 流体冷却器、热交换器、密封组件以及包括流体冷却器或热交换器的系统和相关方法
CN101379358A (zh) 螺旋卷绕的多层管式热交换器及其制造方法
EP4290161A1 (de) Verfahren zur formung eines kapillaren-sammler-wärmetauscher-konvertor-wärmetauscher-kapillar-anordnung
EP3236189B1 (de) Wärmetauscher für hlk-geräte zur wohnnutzung
EP3397913B1 (de) Wärmetauschervorrichtung
EP3362759B1 (de) Wärmetauscher für hlk-geräte im wohnbereich
JP2013011404A (ja) 熱交換器及びその製造方法
CN105026869B (zh) 用于热交换器的管道结构
CN110705047B (zh) 一种带折流板缠绕管式换热器的设计计算方法
CN112005074B (zh) 制冷剂分配器、热交换器以及空调机
WO1998011395A1 (en) Serial heat exchanger and cascade circuitry
EP3619492B1 (de) Wärmetauscher für wärmepumpenanwendungen
EP3899395A1 (de) Verflochtener spulenwärmetauscher
PL245006B1 (pl) Sposób formowania zestawu kapilar kolektora wymiennika ciepła, kolektor wymiennika ciepła maszyn cieplnych z zestawem kapilar, zestaw kapilar kolektora wymiennika ciepła
CN103225934A (zh) 变齿形内螺纹强化管冷凝器
CN210773619U (zh) 一种内螺纹管结构、换热器以及空调器
US20070068660A1 (en) Heat exchanging unit for motor vehicles
EP3741453B1 (de) Mischvorrichtung mit umgekehrter gewickelter konfiguration und verwendung
CN203249435U (zh) 变齿形内螺纹强化管冷凝器

Legal Events

Date Code Title Description
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: THE APPLICATION HAS BEEN PUBLISHED

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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR