EP1850082A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP1850082A1
EP1850082A1 EP06113007A EP06113007A EP1850082A1 EP 1850082 A1 EP1850082 A1 EP 1850082A1 EP 06113007 A EP06113007 A EP 06113007A EP 06113007 A EP06113007 A EP 06113007A EP 1850082 A1 EP1850082 A1 EP 1850082A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
channel
port
fluid
axially arranged
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.)
Ceased
Application number
EP06113007A
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German (de)
English (en)
Inventor
Sören ULLBERG
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.)
Sundsvall Energi AB
Original Assignee
Sundsvall Energi AB
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 Sundsvall Energi AB filed Critical Sundsvall Energi AB
Priority to EP06113007A priority Critical patent/EP1850082A1/fr
Publication of EP1850082A1 publication Critical patent/EP1850082A1/fr
Ceased legal-status Critical Current

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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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids

Definitions

  • the present invention relates to the field of rationally produced heat exchangers for generating heat and/or hot water in premises comprising at least one heat exchanger. More specifically, the invention relates to a brazed plate heat exchanger arranged to produce domestic hot water and/or hot water for a heating system from hot water obtained from an external hot water source such as a district heating system.
  • Compact heat exchangers such as brazed plate heat exchangers, are used both for cooling and heating.
  • manufacturing technics and methods for producing heat exchangers of the above-mentioned type are well-known in the art and a discussion and description of such methods will therefore be omitted.
  • the heat exchangers are, as a rule, connected to a pipe system, in which a medium flows which is to be heated/cooled, and another pipe system in which a heating/cooling medium flows. Furthermore, there are arranged in the pipe system, i. a. temperature- and flow-transducers, circulation pumps and i.a. flow control valves to control the heating/cooling. Every inlet and outlet port, usually arranged in the corners, of the heat exchanger is connected in a conventional manner by means of pipes and pipe-fittings to the secondary and primary systems. This altogether usually increases the volume of the heat transferring device and constitute a large volume in relation to the small size of the plate heat exchanger.
  • the above also applies to stations that connect premises to district heating systems that usually contains two heat exchangers, either coupled in parallel, or in so called two-stage, for simultaneous production of domestic hot water and hot water to a water carrying system for heating the premises.
  • the system for heating the premises may comprise radiators, convectors, air-batteries and/or heating circuits, such as floor circuits.
  • EP 1080329 discloses a heat transferring device, for transferring heat between a primary fluid and at least one secondary fluid obtained from an external source, whereby the secondary fluid is tempered before being supplied to a consumer.
  • the device comprises a heat exchanger and a connection block having inner channels.
  • the heat exchangers have inlets and outlets for the inflow, outflow, respectively, of the primary fluid and the secondary fluid.
  • the intelligent connection block has: a plurality of main connections for connecting the external primary fluid source and the consumer, for the inflow and outflow to and from the device, respectively, of the primary fluid and the secondary fluid; a plurality of sub-connections for connecting to the inlets and outlets of the heat exchanger for the inflow and outflow of the fluids to and from the heat exchanger respectively, whereby the inner channels join together the main- and sub-connections; flow distribution for distributing an incoming flow and/or flow accumulating means to bring together at least two outgoing flows; and integrated means for controlling and monitoring the thermal process in the heat exchanger.
  • the heat transferring device according to EP 1080329 solves many of the above-mentioned problems but does not however present a satisfying solution in all aspects.
  • An object of the invention is to develop the above mentioned type of compact plate heat exchanger for use in preparing heat and/or hot water in buildings, for transferring heat between a primary fluid obtained from an external source and at least one secondary fluid.
  • Another object of the present invention is to provide a plate heat exchanger that can be manufactured in an efficient way with respect to costs and time consumption.
  • a further object of the present invention is to disclose a compact plate heat exchanger, which in addition to not taking up much space and being flexible, in an easy and efficient way can be connected to, and vice versa, equipment or means for controlling, monitoring, and measuring etc. of the thermal processes taking place in the heat exchanger or equipment or means for processing, etc. the fluids.
  • equipment or means will hereinafter be denoted as process means.
  • stroke refers to a continous channel portion in a heat exchanger where the heat transfer between two media takes place when the media flows through the channel portion.
  • two or more strokes may be, after being divided from the channel portion, interconnected in a flow sense of meaning, and thereby also thermically, and operating in series with each other.
  • stage refers to a heat exchangning process wherein a supply for new media is arranged before or after a channel portion.
  • stage refers to a heat exchangning process wherein a supply for new media is arranged before or after a channel portion.
  • a two stage process is a first stage heat exchanger or in a channel portion in the heat exchanger arranged as a pre-heater where cold water is pre-heated and where the heating medium is after-cooled and a second stage heat exchanger or in a channel portion in the heat exchanger arranged as an after-heater where the pre-heated cold water is fully heated and the heating medium is pre-cooled.
  • circuit refers to an open or closed circulation and/or flow system for fluid where the heat exchanger is included and where a first medium emit heat and a second media at the same time absorb heat from the first medium in at least one heat exchangning process.
  • circuit normally refers to the meduim being heated, for example, a "hot water circuit”.
  • the term "port" refers to an area in a plate heat exchanger that is delimited by, normally, circular die pressed areas in the patters in which the material has been punched off in the plates of the heat exchanger, wherein a stoppage for one medium and a hole or apperture arrangement for the heat exchangning medium is created, in which hole arrangement the heat exchanging medium can flow into or out of the heat exchangning passages and normally, but not necessarily, into and out of the heat exchanger.
  • a plate heat exchanger with a symmetrical or asymmetrical plate design in one or more stroke/stages and for one or more circuits for use in preparing heat and/or hot water in buildings, which heat exchanger is adapted to transfer heat from a primary fluid circuit to at least one secondary fluid circuit.
  • the heat exchanger includes a number of stacked plates provided with a pattern defining channels for flows of said fluids and is provided with at least one port for the primary fluid's and the secondary fluid's inflow and outflow, respectively.
  • the heat exchanger is characterized in that at least one port configuration of said heat exchanger and at least one, to said port, associated attachment means are arranged at least partly with a coaxial channel arrangement for a fluid.
  • a method for manufacturing a brazed plate heat exchanger with a symmetrical or an asymmetrical plate design in one or more strokes/stages and for one or more circuits for use in preparing heat and/or hot water in buildings the heat exchanger being adapted to transfer heat from a primary fluid circuit to at least one secondary fluid circuit
  • the heat exchanger includes a number of stacked plates provided with a pattern defining channels for flows of the fluids and wherein the heat exchanger is provided with at least one port for the primary fluid's and the secondary fluid's inflow and outflow, respectively, including step of arranging at least one port configuration of the heat exchanger and at least one, to the port, associated attachment means at least partly with a coaxial channel arrangement for a fluid.
  • the heat exchanger according to the present invention can be manufactured in an efficient way with respect to costs and time consumption due to the fact that it can be manufactured by means of only one or two sets of pressing tools for pressing the plates of the heat exchanger device. Only one set of pressing tools is required in case of a heat exchanger built by means of symmetrical plates and two sets of pressing tools are required in case of a heat exchanger built by means of asymmetrical plates.
  • the attachment means is arranged at the surface of the heat exchanger.
  • the coaxial port arrangement is adapted to conduct the fluid into and/or out of the process means.
  • process means may be associated with the coaxially arranged port channels as an integrated part of the heat exchanger.
  • the process means may be associated with the coaxially arranged port channels as a joined part of the heat exchanger.
  • the at least one port configuration comprises co-axially arranged channels, each co-axially arranged channel being adapted to conduct the primary or at least one secondary fluid into and/or out of the heat exchanger.
  • each co-axially arranged port channel comprises an inner channel and an outer channel, the inner channel and the outer channel, respectively, being adapted to conduct a fluid in counter-currently directions relative to each other.
  • two or more coaxially arranged port channels may be arranged to communicate with each other via heat exchange passages between adjacent plates. Accordingly, an inner channel of a first co-axially arranged channel may communicate with an inner channel or an outer channel of at least one second co-axially arranged channel and/or an outer channel of a first co-axially arranged channel may communicate with an inner channel or an outer channel of at least one second co-axially arranged channel.
  • the co-axially arranged port channels are connectable to the process means via the attachment means.
  • the co-axially arranged channels that conducts the primary and secondary fluids into and out of the device are connectable, at the turning points (i.e. at their ends outside the heat exchanger), to the process means.
  • Such process means may be arranged, in principle, directly on the end piece of the heat exchanger in communication with a port with co-axially arranged channels.
  • one medium or two media may be conducted into and/or out of the heat exchanger by means of a port with coaxially arranged channels.
  • the flows in the port channels may be either counter-currently to each other or may be concurrently or parallel.
  • the heat exchanger is built up of an eligible number of channel-forming plates and may also comprise isolating intermediate layers and at least two end pieces.
  • the primary fluid can be an arbitrary heating medium but according to an embodiment the external primary fluid source is a district heating plant which supplies a primary fluid in the form of hot water to a heating sub-station in a smaller building for producing domestic hot water and hot water for the building's heating system.
  • a heating sub-station may comprise:
  • each of the heat exchangers is of two stroke/stage type being designed with two flow directions and with co-axial turning ports in one end and inlet and outlet ports in the other end of the heat exchanger, the above mentioned first, second and third circuits can all be built-in in an one and only heat exchanger package.
  • a heating station according to the present invention preferably also comprises integral temperature sensors, flow transducers and energy meters as well as means to draw off one or several of the fluids, at least the primary fluid.
  • the means for controlling and monitoring the thermal processes in the heat exchanger such as valves, flow transducer for the energy meter, circulation pumps and the like, as well as valves for refilling the circuits and safety valves or similar means for ensuring the circulation and desired pressure in the circuits may be connected to the co-axial port channels of the heat exchangers.
  • Fig. 1 is an example of a schematic diagram illustrating a system environment in which a heat exchanger package including two circuits according to the present invention may be implemented.
  • system environment described hereinafter is only for illustrative purposes, and should therefore not be regarded as limiting the use of the invention to such a system environment, and there are of course a number of other conceivable system configurations in which the invention may be utilized.
  • the system comprises a coupling block 1, a heat exchanger 3 comprising two circuits, a hot water circuit 9 and a radiator circuit 10, a first consumer 4, for instance a radiator system, a second consumer 5, for instance a domestic hot water system, and an external hot water source 6, such as a district heating system.
  • the hot water circuit 9 in Fig. 1 is, for example, a water heating circuit 9, supplied with cold water 7 which is heated with the hot water from the district heating system 6, which passes through the circuit 9 in opposite direction to the cold water. A corresponding heat exchangning process takes place in the circuit 10.
  • the heat exchanger 3 comprises inlet ports for the cold water and outlet ports for the heated domestic hot water, inlet mutual ports for incoming hot water and mutual outlet ports for the return of the hot water, and inlet and outlet ports for the radiator circuit 10. Some of these ports is preferably coaxially arranged ports as will be described below.
  • these inlet and outlet ports may be arranged assembled at the end on the side of the gable surface turned away from the heat exchanger, such as is illustrated in Fig. 1, or on the opposite gable surface or be more spread out on any of the two gable surfaces.
  • the cold water enters the heat exchanger 3 by means of a first main connection and is lead to the hot water heater's 9 inlet ports for domestic water of the water heater's 9 secondary fluid, and into and through the water heater 9 where it is heated by district heating water which passes the water heater 9 in counter flow to the domestic water.
  • the cold water is lead in a first stroke/stage 12 leading upwards in Fig. 1 and then via a second stroke/stage 11 leading downwards, which strokes/stages may include one or several passages.
  • the heated domestic water, the domestic hot tapwater then leaves the water heater 9 and the heat exchanger 3 via a second main connection and is lead to the consumer system 5 having one or several drain cocks or taps for domestic hot water.
  • the external primary fluid circuit 6, which in the embodiment according to Fig.
  • a hot water circuit 6 may, for example, be a district heating water circuit.
  • District heating water 6a is supplied to the device via a third mutual main connection and is lead to the heat exchanger 3 and the water heater's 9 inlet port for district heating water, primary fluid, through the water heater 9. Then it leaves the heat exchanger 3 via a fourth mutual main connection and returns as district heating water return 6b.
  • return water from the radiator system 4 enters the heat exchanger 3 via a fifth main connection and is lead to the radiator circuit's 10 inlet ports for return water of the radiator circuit's secondary fluid, and into and through the radiator circuit 10 where it is heated by district heating water which passes the radiator circuit 10 in counter flow to the domestic water.
  • the return water is lead in a first stroke 14 leading upwards in Fig. 1 and then via a second stroke 13 leading downwards, which strokes may include one or several passages.
  • the heated radiator water then leaves the water heater 3 via a sixth main connection and is lead further on to the radiator system 4.
  • the district heating water serving the radiator circuit 10 enters and leaves the device 3 och 10 through the mentioned third and fourth mutual main connections.
  • Fig. 1 shows some, but not all, of the requisite process means 8a-8e which all are at least partly attatched with a coaxial channel arrangement.
  • a flow transducer 8a may be arranged to regulate the throghflow of the primary water of the water heater 9 based on the throghflow of the domistic tapwater.
  • This throghflow of the domistic tapwater is monitored by means of a flow transducer 8a, the flow transducer 8a being associated with the valve 8b.
  • Water is lead to the the pump 8c via coaxially arranged ports (see for example Fig.
  • a ventilation port 15 may also be arranged at the heat exchanger 3.
  • other controlling, monitoring, or measuring units that may be connected to the device 3 such as several types of valves, temperature sensors for reading the temperature of the water supplied to the hot water system 5, for reading the temperature of the incoming district heating water 6a etc.
  • FIG. 2 an example of a cross-sectional view of the embodiment of the heat exchanger package in accordance with Fig. 1, complemented with a hot water circulation circuit, will be described.
  • a cross-sectional view of a plate heat exchanger 30 for use in preparing heat and hot water in buildings, for transferring heat between a primary fluid obtained from an external source and two secondary fluids, whereby the secondary fluids is tempered before being supplied to the consumer is shown.
  • the heat exchanger device 30 comprises a number of ports including ten co-axially arranged ports, in this view only seven 32a-32g are shown and of which four 32c,d,e and g are shown in cross-section.
  • the shown ports 32j-32m may be arranged as inlet ports and outlet ports for the secondary fluid's inflow and outflow, respectively.
  • the ports for the primary fluid's inflow and outflow, and some other ports, may lies this side of the cross section line and therefore are not visible.
  • the co-axially arranged ports 32a-32c and 32e-32g may also be adapted to conduct the primary and secondary fluids into and out of the device 30 at the turning points of the strokes/stages.
  • Attachment means are associated with each port. Adapted process means (see for example Fig. 5) can be connected to the heat exchanger via the attachment means.
  • each co-axially arranged port 32a-32g may comprise a respective inner channel 33a-33g and an outer channel 34a-34g.
  • the inner channel 33a-33g of a co-axial port 32a-32g may conduct a primary or secondary fluid into the device and the outer channel 34a-34g of the co-axial port 32a-32g may conduct the fluid out of the device.
  • two or more coaxially arranged channels can be interconnected to each other via heat exchange passages between two adjacent plates 31. The heat passages may be arranged in one or several strokes.
  • the coaxial port 32a may be arranged for ventilation of the primary circuit
  • the port 32b may be arranged for ventilation of the hot water circulation circuit
  • the port 32c may be arranged for ventilation of a secondary circuit
  • the port 32e may be connected to a flow transducer for hot water
  • the port 32f may be connected to a primary control valve
  • the port 32g may be connected to a circulation pump for the radiator circuit
  • the port 32d may be arranged for refill of the radiator circuit from the hot water circuit
  • the port 32h may be connected to a safety pressure valve for the radiator circuit
  • the port 32i may be connected to safety pressure valve for the hot water circuit
  • the port 32j may be arranged as an inlet port for cold water for a tap water circuit
  • the port 32k may be arranged as an outlet port for a tap water circuit
  • the port 321 may be arranged as an inlet port for a tap water circulation circuit
  • the port 32m and the port 32n may be arranged as inlet port and outlet port, respectively, for the
  • FIGs. 3-6 cross-sectional views of the principle of different port arrangements with coaxial channels of the heat exchanger according to the present invention are shown. The direction of the fluid flows are indicated with arrows.
  • the coaxial port arrangement is arranged as a through bore or hole, i.e. the inner and outer channel 40 and 46, respectively, are extended through the heat exchanger.
  • a fluid primary or secondary, is conducted through an inner channel 40 to a process means 42.
  • a process means 42 For example, a flow transducer, a pump, or a control valve.
  • the fluid is conducted back into the heat exchanger 44 via an outer channel 46 and further on in heat exchange passages 48.
  • the process means 42 is arranged at a guide socket or a stud 49.
  • the process means 42 may be arranged directly at the ports.
  • the process means 42 may be associated with coaxially arranged ports as integrated parts of the heat exchanger.
  • the process means 42 may be associated with coaxially arranged ports as joined parts of the heat exchanger.
  • a port arrangement according to the present invention with a divided coaxial channel configuration is shown in cross-section.
  • the coaxial port arrangement is arranged as a through arrangement, i.e. the inner and outer channel 50 and 52, respectively, are extended through the heat exchanger.
  • a fluid primary or secondary, is conducted through an inner channel 50 to a process means 42.
  • a process means 42 For example, a flow transducer, a pump, or a control valve.
  • the fluid is conducted back into the heat exchanger 44 via the outer channel 52 and further on in heat exchange passages 54 in an upper stroke.
  • the flows in the inner channel 50 and the outer channel 52 will pass through the port arrangement counter-currently relative to each other.
  • the fluid is also conducted by the inner channel 50 directly into heat exchange passages 56 of a lower stroke separated from the heat exchange passages receiving the fluid from the process means 42 by a partition element 58 attached to wall elements 59 of the inner channel 50, which partition element preferably is a part of a plate.
  • the fluid conducted by the inner channel 50 is divided in one flow to the process means 42 and one flow to the heat exchange passages 56.
  • the process means 42 is arranged at a guide socket or a stud 49.
  • the process means 42 may be arranged directly at the port.
  • a port arrangement is shown in cross-section.
  • the coaxial port arrangement is arranged as a single-ended arrangement, i.e. the inner and outer channel 60 and 62, respectively, are not extended entirely through the heat exchanger.
  • a fluid primary or secondary, is conducted from heat exchange passages 64 through an outer channel 62 to a process means 42.
  • a process means 42 For example, a flow transducer, a pump, or a control valve.
  • the fluid is conducted back into the heat exchanger 44 via an inner channel 60 and further on in heat exchange passages 66.
  • the flows in the inner channel 60 and the outer channel 62 will pass through the port arrangement counter-currently relative to each other.
  • a partition element 68 attached to wall elements 69 of the inner channel 60 separates the fluid conducted to the process means 42 from the fluid flowing out from the process means 42, which partition element preferably is a part of a plate.
  • the process means 42 is arranged at a guide socket or a stud 49.
  • the process means 42 may be arranged directly at the port.
  • FIG. 6 another embodiment of a port arrangement according to the present invention is shown in cross-section.
  • the coaxial port arrangement is arranged as a single-ended arrangement, i.e. the inner and outer channel 70 and 72, respectively, are not extended entirely through the heat exchanger.
  • a fluid primary or secondary, is conducted from heat exchange passages 74 through an outer channel 72 to a process means 42 in an upper stroke.
  • a process means 42 for example, a flow transducer, a pump, or a control valve.
  • the fluid is conducted back into the heat exchanger 44 via an inner channel 70 and further on in heat exchange passages 76 in a lower stroke.
  • a partition element 78 attached to wall elements 79 of the inner channel 70 separates the fluid conducted to the process means 42 from the fluid flowing out from the process means 42, which partition element preferably is a part of a plate.
  • the process means 42 is arranged at a guide socket or a stud 49.
  • the process means 42 may be arranged directly at the port.
  • the channels in the lowest stroke are blocked or closed off by means of a plate element 77.
  • a number of closed-off or sealed-off channels 71, and 73 are also shown.
  • FIGs. 7-14 another embodiments of a coaxial port arrangement, made directly by shaping and punching of the heat exchanger plates, in accordance with the present invention are shown in cross-section.
  • a primary fluid has been designated by the letter P
  • a first secondary fluid has been designated by a letter Y and Z
  • a second secondary fluid has been designated by a letter X.
  • the letters Y and Z designating the first secondary fluid indicate that the fluid has changed state after being processed in some way in a process means 42. Accordingly, the letter Y may designate a fluid flow entering the process means 42 via an outer channel 80 and the letter Z may designate a fluid flow leaving the process means 42, or vice versa via an inner channel 82.
  • the number and shape of the "spokes”, for example 88a-88c in Fig. 8, as well as the hole or aperture arrangements, for example 80 in Fig. 8, are arbitrary as long as the functions of supporting the coaxially arranged ports, stabilizing the heat exchanger, especilly during the brazing moment, are withheld and the fluids are allowed to flow freely.
  • Figs. 8-11 are a sections along the lines I-I, II-II, III-III, and IV-IV, respectively, of Fig. 7 showing the coaxial port arrangement according to the present invention.
  • the areas marked with white and a letter indicate open spaces where a fluid may flow and the grey areas indicate brazed areas of plate parts.
  • the outer channel 80 is designed with supporting elements 88a-88i in form of a "spoke wheel” with three spokes.
  • spoke wheel As the skilled man easily realizes, the number of "spokes” are arbitrary as long as the functions of supporting the coaxially arranged ports, stabilizing the heat exchanger and allowing the fluids to flow freely are withheld.
  • the areas marked with reference numerals 83, 84, 85, and 86, respectively, indicate inclined parts of the plates.
  • FIGs. 12a and 12b an alternative design of the bottom of the coaxial port arrangement at section IV-IV in Fig. 7 are shown.
  • Fig. 12b shows the section V-V in Fig. 12a and as can be seen, the coaxial arrangement is provided with three supporting elements 90a-90c or "spoke elements".
  • the coaxial port arrangement comprising an inner channel 100 and an outer channel 102 is formed by bended parts 104 of the plates, which may be attached to each other by means of brazing.
  • Fig. 13b an alternative embodiment is shown, where the channels 100 and 102 are formed by a single plate part 106 except at the attachment points where the plate parts may be attached to each other by means of brazing.
  • the coaxial port arrangement comprising an inner channel 200 and an outer channel 202 is formed by bended parts 204 and 206 of the plates, which may be attached to each other by means of brazing.
  • Fig. 14b an alternative embodiment is shown.
  • the coaxial port arrangement comprising an inner channel 300 and an outer channel 302 is formed by tube-like element 304, 306 having a substantial circular cross section.
  • the shape of the element 304, 306 may have other forms, for example, it may be square-like or hexagonal.
  • the element 304, 306 may be attached to a plate or a number of plates by means of brazing.
  • the coaxial port arrangement comprising an inner channel 400 and an outer channel 402 is formed by tube-like element 404, 406 having a substantial circular cross section.
  • the tube-like element 404, 406 may be attached after the brazing moment by means of a o-ring or packing ring 408 in two different types of brazed-in washers 410 placed in and adapted to spaces between plates at the port.

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  • 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)
EP06113007A 2006-04-24 2006-04-24 Echangeur de chaleur Ceased EP1850082A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06113007A EP1850082A1 (fr) 2006-04-24 2006-04-24 Echangeur de chaleur

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Application Number Priority Date Filing Date Title
EP06113007A EP1850082A1 (fr) 2006-04-24 2006-04-24 Echangeur de chaleur

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EP1850082A1 true EP1850082A1 (fr) 2007-10-31

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EP06113007A Ceased EP1850082A1 (fr) 2006-04-24 2006-04-24 Echangeur de chaleur

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2257756A1 (fr) * 2008-04-04 2010-12-08 Alfa Laval Corporate AB Échangeur de chaleur à plaques
WO2012095531A1 (fr) * 2011-01-14 2012-07-19 Behr Gmbh & Co. Kg Échangeur thermique
WO2012105888A1 (fr) * 2011-02-04 2012-08-09 Alfa Laval Corporate Ab Echangeur thermique à plaques
FR3001795A1 (fr) * 2013-02-07 2014-08-08 Delphi Automotive Systems Lux Agencement d’echangeurs thermiques a plaques
DE102013225321A1 (de) * 2013-12-09 2015-06-11 MAHLE Behr GmbH & Co. KG Stapelscheibe für einen Wärmeübertrager und Wärmeübertrager
US9534854B2 (en) 2010-06-24 2017-01-03 Alfa Laval Corporate Ab Heat exchanger plate and a plate heat exchanger
WO2018114288A1 (fr) * 2016-12-22 2018-06-28 Alfa Laval Corporate Ab Échangeur thermique à plaques
CN108253823A (zh) * 2016-12-28 2018-07-06 丹佛斯微通道换热器（嘉兴）有限公司 板式换热器
WO2020234006A1 (fr) * 2019-05-21 2020-11-26 Alfa Laval Corporate Ab Échangeur de chaleur à plaques et procédé de fabrication d'un échangeur de chaleur à plaques
EP3904816A4 (fr) * 2018-12-28 2022-09-14 Danfoss A/S Échangeur de chaleur à plaques à multiples boucles

Citations (8)

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EP2257756A4 (fr) * 2008-04-04 2013-05-29 Alfa Laval Corp Ab Échangeur de chaleur à plaques
EP2257756A1 (fr) * 2008-04-04 2010-12-08 Alfa Laval Corporate AB Échangeur de chaleur à plaques
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CN103348210B (zh) * 2011-02-04 2015-07-22 阿尔法拉瓦尔股份有限公司 板式换热器
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CN110073163A (zh) * 2016-12-22 2019-07-30 阿法拉伐股份有限公司 板式热交换器
US10871330B2 (en) 2016-12-22 2020-12-22 Alfa Laval Corporate Ab Plate heat exchanger
CN110073163B (zh) * 2016-12-22 2021-02-02 阿法拉伐股份有限公司 板式热交换器
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