EP1562010A2 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP1562010A2
EP1562010A2 EP04029325A EP04029325A EP1562010A2 EP 1562010 A2 EP1562010 A2 EP 1562010A2 EP 04029325 A EP04029325 A EP 04029325A EP 04029325 A EP04029325 A EP 04029325A EP 1562010 A2 EP1562010 A2 EP 1562010A2
Authority
EP
European Patent Office
Prior art keywords
section
drying
tube
filter
additional
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.)
Withdrawn
Application number
EP04029325A
Other languages
German (de)
English (en)
Other versions
EP1562010A3 (fr
Inventor
Roland Dipl.-Phys. Burk
Karl-Heinz Dipl.-Ing. Staffa
Markus Watzlawski
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
Publication of EP1562010A2 publication Critical patent/EP1562010A2/fr
Publication of EP1562010A3 publication Critical patent/EP1562010A3/fr
Withdrawn legal-status Critical Current

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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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0443—Condensers with an integrated receiver the receiver being positioned horizontally
    • 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
    • F25B2339/0446—Condensers with an integrated receiver characterised by the refrigerant tubes connecting the header of the condenser to the receiver; Inlet or outlet connections to receiver
    • 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

Definitions

  • the present invention relates to an apparatus for replacement of heat, especially for motor vehicles.
  • Such devices for Heat exchanges are known in the art.
  • a class Such devices for example, for air conditioning purposes of Vehicle interiors are used, usually have a capacitor and a collector.
  • the collector serves as a reservoir for a refrigerant to the function of the refrigeration cycle over a desired To ensure a long time even at low refrigerant loss.
  • the collector fulfills a buffer function for the refrigerant at Density changes due to changes in plant operating condition, such as a change in ambient temperature.
  • Another The task of the collector is to use the expansion valve with bubble-free Refrigerant supply and finally the collector is still for recording the filter and / or dryer unit.
  • the collector contains a filter and a dryer.
  • the device known from the prior art forms the additional device Together with the collector a separate unit, which in case of service completely changed.
  • this concept an additional liquid line as well as additional screw connections necessary for mounting the collector / filter / dryer unit. In this way arises from the prior art, a certain construction cost in the Production or in the service of these devices for the exchange of Warmth.
  • all solutions from the prior art at least one additional detachable screw for changing the filter dryer on.
  • the invention is therefore based on the object, the construction cost of a To reduce heat exchangers.
  • the concept according to the invention is intended here Also suitable for such devices, without separate collector volume get along with phase separation.
  • This object is achieved according to the invention by a device for exchanging heat, in particular for a motor vehicle, solved, the at least one feed tube for a flowable Medium, at least one collection and / or distribution pipe, a variety of flow tubes and at least one drainage tube for the flowable medium having. At least one of these is in at least one section these tubes an additional device for influencing at least one physical property of the flowable medium arranged.
  • the Tubes understood that the device from exchanging heat with other facilities of a refrigeration cycle, such as the expansion valve, connect to the evaporator or the compressor. Therefore the auxiliary device can be located at any point of the respective supply or drainage pipes be arranged, so spatially closer to other components, as the device for exchanging heat itself be located.
  • the device according to the invention has the advantage that a tube, in the additional device is arranged, can be used multiple times; on the one hand in his function as a leader, on the other hand to influence the physical property. In this way, a space reduction be achieved.
  • the additional device preferably has at least one drying device on. Furthermore, the additional device has at least one filter device.
  • the attachment means both a dryer as well as a filter device, wherein particularly preferred the space occupied by the refrigerant is kept as small as possible is.
  • the flowable medium is a liquid or gaseous Medium, which serves the heat exchange.
  • the portion of the tube in which the additional device is housed even as a housing for the additional device.
  • the collecting and / or distribution pipe serves to the refrigerant on a Distribute a variety of flow tubes or the flow tubes to collect escaping flowable medium.
  • the device according to the invention has the advantage that the stand the technology additional large-volume collectors, which usually is arranged parallel to the manifold, and therefore eliminates the construction cost is reduced. In addition, the expense for additional connecting pipes is also eliminated and fittings.
  • the portion of the tube, in the additional device is arranged, opposite the adjacent sections an enlarged cross section.
  • This enlarged section serves on the one hand, the additional device with a to receive sufficient amount of desiccant in their cross-section and on the other hand also preferred to the pressure loss of the flowing To keep media within certain limits.
  • the inner diameter of the pipe section by a defined amount Be made larger than the outer diameter of the therein Additional device.
  • this may be the pipe section inside Have support means, held by the auxiliary device centric becomes.
  • the additional device in certain distances proppant, z. B. nubs on to a substantially constant annular gap between the pipe section and the additional device train.
  • the additional device is in arranged the drain pipe for the refrigerant.
  • the Drainpipe also prefers at the point where the attachment is arranged, an enlarged cross section.
  • This arrangement of Additional device has the advantage that the additional device in case of service is relatively easily accessible and therefore with little or no Effort can be exchanged.
  • the drainpipe itself be used as a housing for the additional device.
  • the additional device is in a flow tube, that is, in at least a portion at least a flow tube arranged.
  • the additional device is in a flow tube, that is, in at least a portion at least a flow tube arranged.
  • the additional equipment integrated directly in the heat exchanger assembly.
  • a plurality of flow tubes is substantially arranged parallel to the manifold d. H. the individual flow tubes are arranged substantially parallel to each other.
  • the Additional device Preferably, for this purpose, the corresponding Flow tube on an extended cross-section. Particularly preferred is this is the last in the flow direction of the refrigerant Flow tube, that is, following the flow tube follows at this Embodiment, the drainage pipe for the flowable medium.
  • At least one tube at least one detachable section, preferably with a screw thread, on.
  • the drainpipe has a having detachable portion, wherein after its release preferably the Collector and / or drying device removed from the drain pipe can be.
  • the flow tube, in which the attachment is arranged, a have such releasable portion, so that in case of service this section be solved and the additional equipment from the relevant Flow tube can be removed.
  • the detachable section arranged in a region between two components of a refrigeration cycle.
  • refrigeration circuits which have multiple components, such as evaporators, compressors or expansion valves, in the prior art releasable connections between the individual Have components.
  • the detachable portion is so on the pipe, that is preferably at the flow or drain pipe, arranged that after the Loosening of the section, the additional device preferably without additional Auxiliary tools or manually removed from the section of the tube can be or can be used in the section of the tube.
  • the flow tube, in which the drying and the filter device is arranged an altered, in particular larger, have cross-section than the other flow tubes.
  • the flow tube, in the additional device is arranged, preferably at least one section which is passed through the manifold.
  • the flow tube, in which the attachment is arranged relative to the manifold and thus to the entire device be stabilized to exchange heat.
  • the flow tube, in the additional device for influencing at least one physical Property of the flowable medium is arranged, preferably at least a curved section.
  • the curved section is preferably used to connect a drain pipe.
  • a holding device provided to the pipe end with the respective Keep the connection fitting for the drainage pipe in position.
  • Another embodiment may also apply to the curved portion be omitted and instead the flow tube, in which the additional device is provided, a lateral opening for connection of the Have drainage tube.
  • the detachable section the flow tube, in which the auxiliary device is arranged at least a connection selected from a group of connections is what clamp connections, screw and the like contains. These are preferably detachable connections, which is provided so that in case of service, the additional device from the respective flow tube can be removed.
  • the flow tube opens, in which the additional device is arranged, in a screw.
  • Screw connection is preferably used to connect a drain pipe to the Apparatus for exchanging heat.
  • At least one tube a cross section selected from a group of cross sections which is essentially circular, elliptical, rectangular, polygonal Contains cross sections and hybrids thereof.
  • the additional device at least one flexible section.
  • This flexible section serves the additional device easier in the corresponding drain or flow tube to be able to insert.
  • the Drying device or arranged a desiccant Preferably, in the flexible section the Drying device or arranged a desiccant.
  • the additional device at least one rigid section. It is in this rigid section preferably arranged at least one filter element.
  • the dryer section is longer than the filter section. Preferably, the dryer section over a predetermined Part of the total length of a flow or drain pipe particularly preferred in the case of a flow tube over its substantially entire Extend length. The advantage of this embodiment is that the drying over a comparably large length range of the concerned Flow or drain pipe can take place.
  • the attachment is spatially divided into a section containing the dryer device and another section, which contains the filter device. The two sections can work together be connected or executed separately from each other.
  • a drying medium arranged in the dryer section, that is, the section to the Drying of the refrigerant is used.
  • This Drying medium is selected from a group of drying media, which contains zeolite and the like.
  • the drying medium is in one flexible refrigerant-permeable casing, such as a sack made of a refrigerant-resistant nonwoven fabric.
  • the filter section has a essentially cylindrical housing, which is particularly preferred Breakthroughs to reduce the flow pressure loss has.
  • the drying medium is located in the form of a granular or pouring ball, which with a predetermined Density is arranged in the dryer section.
  • the filter section has a essentially cylindrical or conical filter element. It is the filter element is arranged in the filter section such that substantially the entire refrigerant through the arranged in the filter section Filter must pass through and essentially not pass by the filter can. In this way, a particularly efficient filtering of the Refrigerant achieved.
  • the invention is further directed to a dryer device, in particular can be used for devices for the exchange of heat.
  • a dryer device in particular can be used for devices for the exchange of heat.
  • the drying device according to the invention both in an inventive Apparatus for exchanging heat in the above-described Art be used, as well as in conventional devices to exchange heat.
  • the drying device according to the invention is also based on the object to reduce the construction costs in the manufacture of a heat exchanger.
  • this is achieved in that the dryer device in essentially freely selectable areas of the Apparatus for exchanging heat can be arranged and thus the construction cost of a heat exchanger with the invention Drying facilities is equipped, can be reduced.
  • the drying device has a drying medium on, which at least partially formed as an elongated body is.
  • An elongated body is a body understood which has a considerably higher extent in an expansion direction than in the other expansion directions, in particular, a elongated body also have curved or twisted areas or change its cross-sectional profile in the longitudinal direction.
  • drying media known in the prior art have a granular structure on.
  • the elongate bodies are produced by a method which is selected from a group of methods, which extrusion methods, Spraying method and the like contains.
  • drying medium at least partially in an elongated shape is present, so for example a rod or having rod-like shape.
  • Under a drying medium is not only the drying active Understood medium, which is for example zeolite can, but also a carrier material, in which the drying medium is embedded.
  • the drying medium is arranged in the form of a plurality of elongated bodies.
  • the elongate bodies of the drying medium are substantially arranged parallel to each other.
  • the drying medium from a variety of elongated Consists of bodies which are bundle-like substantially parallel to each other are arranged.
  • these elongate bodies of the drying medium at least partially against each other. This way becomes a special one high flexibility of the drying device, in particular in the device to exchange heat, and in this way the possibility an arrangement of the drying devices at substantially any Make the device allows for the exchange of heat respectively facilitated.
  • the drying-active substances such as for example, molecular sieve crystals embedded in a polymer structure. It is preferably an injection-moldable or extrudable polymer structure.
  • the resulting composition offers the advantages of the plastic used or Polymers and on the other hand, those of the drying active substances.
  • the drying medium is essentially by extrusion or injection molding arbitrarily malleable. Furthermore, the drying medium according to the invention virtually abrasion free, as the molecular sieve crystals (zeolite) within the polymer structure get connected. The produced in this way Drying medium is also substantially arbitrarily elastically deformable, that is bendable, and to some extent also stretchable or compressible.
  • the elongate bodies according to the invention can in a preferred Embodiment between each other have a mechanical connection and fixed with respect to each other.
  • the individual elongated bodies without mechanical connection between each other in a suitable pipe section of the refrigeration cycle or the device for exchanging heat, wherein preferably selected a position upstream of a filter device becomes.
  • the particular design of the drying medium depends on the arrangement within the device for the exchange of heat.
  • the elongated Body of the drying medium connected to a bundle.
  • the elongated body with the filter device mechanically - in particular, but not exclusively - by Injection connected are particularly preferred.
  • the inventive elongated body also housed one behind the other in the tubes or also loosely inserted into pipes or areas of the pipes become.
  • the elongate bodies be bent, for example or a bottleneck of the heat exchange device, around by this positioning without any additional mechanical support means unwanted geometric displacements of the dryer media too prevent.
  • the elongated Body a ratio of its cross-sectional area to its length, which less than 0.1 mm, preferably less than 10.05 mm and, especially preferably, less than 10.02 mm.
  • this ratio which on indicates a very small cross-sectional area in relation to the length is It is possible to have a large number of elongated bodies in a tube of the device to bring in a lot of the heat to exchange heat Cross-sectional area of the respective tube through the elongated body is completed.
  • the Drying medium at least one component in crystalline form, the embedded in a polymer structure. In this way - as mentioned above - Achieved a particularly advantageous structure of the drying medium.
  • the invention is further based on a device according to the invention described above directed to the exchange of heat, which is an inventive Has drying device.
  • Fig. 1 is a schematic representation of a device according to the invention shown to exchange heat.
  • the reference numeral refers 4 on a supply pipe for the flowable medium, that is Refrigerant.
  • a connection device 11 is arranged, to connect the supply pipe with other pipes. It is preferred in the connection to a screw connection.
  • the reference numeral 6a denotes a first manifold and / or manifold. This has in its interior a plurality of partitions 3b, 3d, 3f, which the collecting and / or distribution pipe 6a in its longitudinal direction in subdivide several subspaces.
  • Reference numerals 7a, 7b and 7c denote a variety of flow devices in fluid communication stand with the collection and / or distribution pipe 6a. This variety of flow devices 7a, 7b and 7c are substantially parallel to each other arranged. In this embodiment, some of the flow-through devices (7a, 7b, 7c) have a larger cross section than others (7d) on.
  • the area of large-volume pipes serves to ensure a sufficient buffer volume be prepared so that by changing the density of the refrigerant z. B. by a phase change from the gaseous state into the liquid State the amount of refrigerant stored in the condenser can vary, without causing an unintentionally strong pressure variation of the refrigerant and associated strong change in the exit state comes.
  • Reference numeral 6b denotes a further collecting and distributing pipe, which essentially corresponding to the collecting and / or distributing pipe 6a is executed. Also, the collection and / or distribution pipe 6b has in his Inside a plurality of partitions 3c, 3e on.
  • the flow tubes and the collection and / or distribution pipes substantially in the same plane arranged.
  • a collector such that it consists of a plane in which the flow tubes and the collection and / or Distributor tubes are arranged protrudes. Through the illustrated here Embodiment may therefore be due to the arrangement in a plane Space can be saved.
  • the individual flow tubes are substantially perpendicular to the Collection and / or distribution pipes arranged. wherein the distribution tubes substantially vertically and the flow tubes arranged substantially horizontally are.
  • the flow direction of the refrigerant extends in this embodiment from top to bottom.
  • the refrigerant passes in operation via the feed pipe 4 in the collection and / or Distributor 6a and can then in the direction b to the first Spread partition 3b. From there, the refrigerant passes over the (not shown) flow tubes 7 in the second collection and / or distribution device 6b and can flow from there to the separator 3c. From there, the refrigerant flows back into the first collection and / or Distributor 6a and within the collection and / or distribution pipe 6a to the Disconnector 3d.
  • the refrigerant does not flow through again shown flow tubes 7 in the collection and / or distribution pipe 6b to the Partition 3e and now serpentine in the area of large-volume pipes between the two collecting and / or distribution pipes 6a and 6b and until it arrives in the lowest chamber of the distributor pipe 6a. From here Finally, the refrigerant passes over the three small-volume flow tubes 7d in the collection and / or distribution pipe 6b, from which it finally via the drain 5 flows from the device for exchanging heat. It can be seen that the distance between the individual partitions 3b, 3c, 3d, etc. in both collecting and / or distribution pipes from above decreases towards the bottom. In this way, the increasing density the refrigerant within the condenser from top to bottom bill carried.
  • the drainage pipe in this embodiment has a portion 5a, a Section 5c, as well as a section 5b, each widening or Broadened cross section.
  • section 5b is an option 20 housed.
  • This additional device has a filter section 24 and a dryer section 22, wherein the outer diameter of the attachment by a defined amount is greater than the inner diameter of the pipe section 5b.
  • a detachable Section 15 provided in the drain pipe 5 .
  • This section preferably has a screw thread on. The section serves to the sections 5b and 5c of the drain pipe 5 separated from each other, whereby after the separation of the collector and / or dryer device are removed from the drain pipe 5 can.
  • That portion of the drainpipe is 5, in which the collector and / or dryer device arranged is substantially parallel to the collection and / or distribution pipes 6a and 6b arranged. Any other layers and shapes of the drainpipe 5 to the next component of the entire devices but equally possible. Instead of the embodiment shown here, which has a widening cross-section 5a, could also the entire Outflow pipe be designed with a wider cross-section.
  • the reference numeral 8 denotes a frame device, which for Stabilization of collection and / or distribution pipes and flow tubes 7 is provided.
  • the filter and / or dryer device preferably has an elongated Mold with a preferably flexible filter and / or dryer insert.
  • This insert serves to the collector and / or dryer device as simple as possible, d. H. even in confined conditions in the drainpipe 5 to insert.
  • the flexibility of the insert also allows also the use of sections of the drainpipe z. B. bends having. In this way, any sections of the so-called Liquid line between the condenser and the expansion valve the refrigeration cycle for receiving the filter and / or drying device be used.
  • Outflow pipe 5 preferably has an internal thread into which a (not shown) external thread of the detachable portion 15 engages, both the area downstream as well as the area upstream of the detachable Section components of the drainage pipe are.
  • Another feature of the filtering and / or drying device in a preferred Embodiment is the use of a sealing ring, the purpose serves that during assembly of the drainpipe the rooms upstream and downstream of the attachment separated from each other become. In this way it is achieved that essentially the entire Refrigerant must pass through the filter device. Next to it guaranteed the sealing ring also provides a secure seal against the environment.
  • Fig. 2 a shows a detailed view of a device according to the invention for Exchange of heat.
  • the reference numeral 7 refers to a Flow tube for the cooling medium.
  • the reference numeral 12 refers to preferably arranged between the individual flow tubes 7 corrugated fins, which serve the improved heat exchange with the surrounding air.
  • Reference numeral 6b denotes a collection and / or distribution pipe.
  • the collector and / or filter device is not provided in the drain pipe, but in a for receiving this device specially designed flow tube.
  • the Flow tube 7 d a smaller section 27 a and a Section with enlarged cross section 27b on.
  • a collection and / or filter device 20 is inserted, the one smaller outer diameter than the inner diameter of the pipe section 27b.
  • the smaller section section does not work Stepwise into the section with larger cross-section 27b, but the extension takes place via an intermediate section 27c.
  • the flow tube 7d in which the Dryer and / or filter device is arranged by the collection and / or Displacement pipe 6b pushed through.
  • the Collection and / or manifold 3a angled areas 26 and collars, to achieve a larger contact area with the flow tube 7d.
  • the collars have with respect to the device to exchange heat to the outside, that is away from the corrugated fins and in the direction of the drainage pipe 5.
  • the collars 26 may also in each case with respect to the collecting and / or distribution pipe 6b inwards or facing outward, or all in the direction of the corrugated fins 12th
  • the flow tube 7d has a screw thread 36 on, which serves the screw with the spout 5.
  • This screw connection on the one hand serves to connect the drainage pipe and on the other hand as a service opening for insertion and removal of the additional device.
  • the screw thread can also force, form and / or -stoffschlüssig with be connected to the collection and / or distribution pipe 6b.
  • the manifold 6b also be carried out shortened (not shown), so to carry on of the flow tube 7d through the manifold and / or manifold 6b can be waived.
  • a holding device (not shown) provided to the pipe end to hold or bring into position with the connection fitting.
  • the reference numeral 31 refers to a sealing ring which, as above executed, a tight connection between the drain pipe and the Flow tube 7b causes.
  • the reference numeral 15 refers to a Union nut, in this case with a screw thread, around the drainpipe 5 to screw against the flow device 7b.
  • the reference number 34 refers to an eyelet that pulls out the attachment 20 after opening the connection device 15 is used.
  • Fig. 2b shows a plan view of the device for exchanging heat according to Fig. 7a.
  • the reference numeral 7 refers to a flow tube and reference numeral 12 to a plurality of corrugated fins.
  • reference numeral 15 refers, as above, to the connection means for connecting the Flow device 7d with a connection pipe.
  • the reference numeral 39 refers to a arranged on the drain pipe 5 collar of the drain pipe against which the nut 15 is supported to the drain pipe 5 and the flow tube 7d via the sealing ring 31 (see Fig. 2a) tight to connect with each other.
  • the reference numeral 34 refers to the eyelet, which serves to remove the collector and / or filter device.
  • Fig. 2c is another view of the device according to the invention for Heat exchange shown in Fig. 2a, in which case the view rotated 90 °.
  • a collar holding sections 41 and 42 recognizable, in which the flow tube 7b in the area smaller diameter 27a engages.
  • These holding sections have one Abutment region 41 a and 42 a and a strongly curved region 41 b or 42b on. These areas serve to contact the area 27a of the flow tube to press and thus cause a stable hold and a to form common solderable surface.
  • the dashed circles indicate the position of the collection and / or distribution pipe 6b.
  • the portions 41 b are also curved so that the ends of the holding portions 41 and 42 in one of the direction of the drain pipe 5 opposite Direction.
  • Fig. 3a is another embodiment of the device according to the invention shown for the exchange of heat in a detailed view.
  • the drain pipe 5 has been omitted, it is however, also in the case of this embodiment corresponding to that shown in Fig. 2a Embodiment the drain pipe according to the device arranged to exchange heat.
  • the collector and / or dryer device has an annular sealing surface 51, which during assembly by means of the sealing ring 31 against the area 33 of the flow tube 7 d is pressed. The latter points to this Purpose an area 33 a with reduced inner diameter.
  • the collector and / or dryer device 20 has a first section 29, in which a filter device 24 is arranged. It is the section 29 preferably rigid executed and the filter device 24 in Essentially arranged in the section 29. By this arrangement is causes the refrigerant substantially completely through the filter device 24 flows and not past this.
  • the Collector and / or dryer a further section 22, in which a drying agent 25 is arranged or housed.
  • the section 22 preferably also has a substantially cylindrical Cross-section and a buckle 22a in the direction of the filter device 24th
  • at least a portion of the portion 22 is made of a flexible and made of refrigerant-permeable material.
  • the dryer section 22 in the form of a flexible long and thin tubular Trockiernierechens formed on the Filter section 29 is molded.
  • the filter section 29 opposite to the dryer section 22 has a shorter length.
  • the dryer section 22 is made of a refrigerant resistant Nonwoven material constructed with a conventional granulated adsorbent 25 is filled.
  • the nonwoven material has a certain elasticity in order to ensure a certain bendability of the section 22, because in this case the granules are relatively easy against each other are.
  • a sufficient amount of desiccant in the filter and / or drying device to accommodate may be preferred the dryer bag or section 22 over substantially the entire Tube length of the flow tube 7 d extend, whereby preferably a sufficient water absorption capacity is achieved.
  • the filter section 29 is an injection-molded Filter device, preferably a cylindrical housing of a having injectable plastic, a conically injected filter screen, as well the sealing collar 51 and the above-mentioned eyelet or the loop-shaped Bracket 34, which makes it easy to remove the entire insert from the Flow tube 7d allows.
  • the preferred cylindrical Filter device 29 at one end with the filter device or the filter bag 22 connected, preferably molded.
  • the cylindrical housing of the filter screen on the cylinder jacket have openings, so that the refrigerant can also flow radially to the conical filter screen. This feature is particularly appropriate when between the option and the pipe section containing this there is a sufficient annular gap, as shown in more detail in the previously described Fig. 2a.
  • the sealing collar 51 and the sealing device 31, in which it is preferred are a ring or the like, are designed such that the Seal 31 at the same time three spaces against each other seals, on the one hand the space of the refrigerant downstream with respect to the filter screen opposite to that of the refrigerant upstream with respect to the filter screen and on the other hand, the inside of the flow device 7d and the drain pipe 5 opposite the environment.
  • Fig. 3b shows a plan view of the view of Fig. 3a.
  • reference numeral 31 denotes the sealing device
  • Reference numeral 38 a portion of the sealing collar of the attachment and reference numeral 34, the eyelet and the bracket for removal the filtering and / or drying device from the flow tube 7d serves.
  • FIG. 3 c shows a further view of the device shown in FIG Exchange of heat. 3c in conjunction with FIG. 3a, that the section 29, in which the filter device 24 is housed, has a substantially cylindrical cross-section.
  • cross-section could also be elliptical, polygenic, rectangular and the same trained cross sections are selected and mixed forms from these cross sections.
  • Holding device 41 is provided, which for engagement or for attachment the flow tube 7b is used.
  • the Dryer area is not completely tightly filled with the dryer granules, but relatively loose, so that, as stated above, the granule particles comparatively are slightly displaced against each other.
  • Fig. 4a shows a further embodiment of the device according to the invention to exchange heat. It is also in the case of this embodiment provided that the flow device 7d by the collection and / or distributor tube 6b is pushed through.
  • the filter and / or Dryer 20 is substantially similar to the above Embodiments executed. Again, a filter section 29 is provided, the one substantially tapered tapering from left to right Filter insert 24 has.
  • a Seal 31 and an eyelet 34 for removing the filter insert provided.
  • the essential difference from the previous embodiment is in the Execution of the collection and / or distribution pipe 6b, while in the above Embodiments the collection and / or distribution tube in one piece is formed, it is in the case of the embodiment shown in Fig. 4c formed in two parts, so preferably has a bottom and a lid on.
  • fastening means 61 and 62 are provided, with the corresponding Intersect sections 64 and 65.
  • curved portions 64a and 65a provided and sections 64b and 65b, which are substantially parallel to the Direction of the flow device 7d extend.
  • the holding portions 61 and 64 on the one hand and 62 and 65 on the other hand cause a meshing the two parts of the collection and distribution device.
  • the device for exchanging heat preferably flows through from bottom to top, d. H. the remaining flow tubes are arranged in Fig. 4a below the tube 7d.
  • the cross-section or diameter of the flow tube is smaller as that of the collecting and / or distribution pipe 6b, which is evident from FIG. 4a by comparison results.
  • the collection and / or Distributor tube have a curved portion and the flow tube be guided in this curvature or bend.
  • a stable hold could in this by a positive, positive and / or cohesive connection between the collecting and / or distribution pipe on the one hand and the Flow tube on the other hand can be achieved.
  • the respective sections of the tubes in which the attachment is arranged a substantially circular Cross-section on.
  • other cross sections such as rectangular cross sections, conceivable.
  • the additional device is arranged, made further embodiments such as the screwing of the opening, for facilitating exchange of the auxiliary device of access.
  • Tube bottom or lid be constructed (see Fig. 4). Owners prefer both parts, that is, both the tubesheet and the lid, openings for receiving the filter dryer tube. Preference may be the Collector tube have a larger cross-section than the flow tube, which accommodates the additional device.
  • the collector tube through the flow tube pass, in which case the flow tube a larger Cross section would have as the collector or distributor tube. Also in this case, the filter section would preferably have to be adapted accordingly be provided or in another position.
  • the additional device to be placed anywhere in the liquid line, such as right in front of an expansion valve.
  • a section in which the filtering and / or drying device is arranged also a have significantly larger diameter or cross-section and for example be designed shorter. In this way, the result could be the same amount of dryer granules are housed and at a longer and less thick additional equipment.
  • preference must be given in the case of larger diameter of the flow tube, which the filter and / or Drying device receives, a larger diameter of the fittings be used, resulting in larger required sealing surfaces leads.
  • the flow tube which accommodates the accessory device, be straight, wherein in Extension of this flow tube prefers sufficient space for Changing the attachment is provided so that on the flexbility the additional device can be omitted and in this way an im Substantially rigid accessory can be used.
  • Fig. 5 shows a drying device according to the invention.
  • This one has Variety of rods 25 containing the drying active material.
  • molecular sieve crystals were used in the production of these rods embedded in Fig. 5 shown polymer structure.
  • the cross sections the rods on a substantially circular shape.
  • other shapes may be provided, such as elliptical, polygonal and more.
  • Druch the use of this elongated body can stand on one in the The technique used V Stammsburgchen for receiving desiccant in Granular form are dispensed with. Further, in the case shown in FIG Embodiment on a holding device, the relative movement of the Drying device - for example, compared to the filter device - prevents waived.
  • the embodiment shown here is further a large contact area between the desiccant and the too drying fluid, that is, the refrigerant causes. This way will achieves a particularly advantageous kinetics of the drying process.
  • the production process is designed so that the drying active Material preferably in the outer areas of the individual bars is arranged.
  • the individual rods 25 can face each other be fixed or movable against each other. In the latter case the mobility of the entire bundle of rods 25 is increased.
  • the single ones Rods 25 can also be inserted into tubes which are another have a circular cross-section.
  • rods 25 of the drying medium behind each other be arranged.
  • the individual bars 25 are particularly preferably extrudable. Due to the high elasticity of the individual Rods, it is possible, this at substantially any points of the device to accommodate the exchange of heat.
  • the individual rods 25 can also be in mechanically fixed connection stand with the filter device.
  • the drying rods 25 or the drying medium is preferably upstream a separate filter (not shown) each arranged.
  • drying device in fixed connection with the filter device be or loosely arranged with respect to this.
  • the filtering devices and the drying devices can be localized be spaced apart.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP04029325A 2004-01-30 2004-12-10 Echangeur de chaleur Withdrawn EP1562010A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004004996 2004-01-30
DE102004004996 2004-01-30

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EP1562010A2 true EP1562010A2 (fr) 2005-08-10
EP1562010A3 EP1562010A3 (fr) 2007-06-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1793183A2 (fr) * 2005-12-02 2007-06-06 Behr GmbH & Co. KG Dispositif pour le séchage d'un fluide
EP3696488A1 (fr) * 2019-02-15 2020-08-19 Valeo Autosystemy SP. Z.O.O. Échangeur de chaleur avec filtre pour boucle de fluide réfrigérant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011112200A1 (de) * 2011-08-30 2013-02-28 Donald Herbst Wärmetauscher
DE102013218529A1 (de) 2013-09-16 2015-03-19 Volkswagen Aktiengesellschaft Trocknervorrichtung und Verflüssiger für eine Kältemaschine sowie Verfahren zur Herstellung eines Verflüssigers für eine Kältemaschine

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US5159821A (en) * 1990-08-23 1992-11-03 Zexel Corporation Receiver tank
EP0516949A1 (fr) * 1991-05-27 1992-12-09 Degussa Aktiengesellschaft Corps moulés contenant une zéolite Y déaluminisée et leur procédé de fabrication
WO1999049964A1 (fr) * 1998-03-31 1999-10-07 Grace Gmbh & Co. Kg Corps faconne en zeolithe, procede de production et d'utilisation associe
JPH11304301A (ja) * 1998-04-17 1999-11-05 Sanden Corp 受液器およびその受液器組込凝縮器
WO2000025071A1 (fr) * 1998-10-27 2000-05-04 Valeo Klimatechnik Gmbh Procede et condenseur pour la condensation du refrigerant interne d'une climatisation de vehicule automobile
US6318115B1 (en) * 2000-05-08 2001-11-20 KENMORE THERMOKäLTE GMBH Refrigeration circuit and apparatus
EP1202007A1 (fr) * 2000-10-25 2002-05-02 Skg Italiana Spa Condenseur et dessiccateur
DE10100423A1 (de) * 2001-01-08 2002-07-11 Valeo Klimasysteme Gmbh Mischkammer zum Zusammenführen von Fluiden
WO2003081148A1 (fr) * 2002-03-23 2003-10-02 Behr Gmbh & Co. Condenseur
WO2004042293A1 (fr) * 2002-10-31 2004-05-21 Valeo Thermique Moteur Condenseur, notamment pour un circuit de climatisation de vehicule automobile, et circuit comprenant ce condenseur

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159821A (en) * 1990-08-23 1992-11-03 Zexel Corporation Receiver tank
EP0516949A1 (fr) * 1991-05-27 1992-12-09 Degussa Aktiengesellschaft Corps moulés contenant une zéolite Y déaluminisée et leur procédé de fabrication
WO1999049964A1 (fr) * 1998-03-31 1999-10-07 Grace Gmbh & Co. Kg Corps faconne en zeolithe, procede de production et d'utilisation associe
JPH11304301A (ja) * 1998-04-17 1999-11-05 Sanden Corp 受液器およびその受液器組込凝縮器
WO2000025071A1 (fr) * 1998-10-27 2000-05-04 Valeo Klimatechnik Gmbh Procede et condenseur pour la condensation du refrigerant interne d'une climatisation de vehicule automobile
US6318115B1 (en) * 2000-05-08 2001-11-20 KENMORE THERMOKäLTE GMBH Refrigeration circuit and apparatus
EP1202007A1 (fr) * 2000-10-25 2002-05-02 Skg Italiana Spa Condenseur et dessiccateur
DE10100423A1 (de) * 2001-01-08 2002-07-11 Valeo Klimasysteme Gmbh Mischkammer zum Zusammenführen von Fluiden
WO2003081148A1 (fr) * 2002-03-23 2003-10-02 Behr Gmbh & Co. Condenseur
WO2004042293A1 (fr) * 2002-10-31 2004-05-21 Valeo Thermique Moteur Condenseur, notamment pour un circuit de climatisation de vehicule automobile, et circuit comprenant ce condenseur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1793183A2 (fr) * 2005-12-02 2007-06-06 Behr GmbH & Co. KG Dispositif pour le séchage d'un fluide
EP1793183A3 (fr) * 2005-12-02 2008-06-11 Behr GmbH & Co. KG Dispositif pour le séchage d'un fluide
EP3696488A1 (fr) * 2019-02-15 2020-08-19 Valeo Autosystemy SP. Z.O.O. Échangeur de chaleur avec filtre pour boucle de fluide réfrigérant

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EP1562010A3 (fr) 2007-06-13
DE102004059799A1 (de) 2005-08-25

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