EP1598627A2 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP1598627A2
EP1598627A2 EP05010612A EP05010612A EP1598627A2 EP 1598627 A2 EP1598627 A2 EP 1598627A2 EP 05010612 A EP05010612 A EP 05010612A EP 05010612 A EP05010612 A EP 05010612A EP 1598627 A2 EP1598627 A2 EP 1598627A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
condensate
container
plastic
gas
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Withdrawn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
EP05010612A
Other languages
German (de)
English (en)
Other versions
EP1598627A3 (fr
Inventor
Horst Wunsch
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.)
Technaflon AG
Original Assignee
Technaflon AG
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 Technaflon AG filed Critical Technaflon AG
Publication of EP1598627A2 publication Critical patent/EP1598627A2/fr
Publication of EP1598627A3 publication Critical patent/EP1598627A3/fr
Withdrawn legal-status Critical Current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
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits

Definitions

  • the present invention relates to a heat exchange device according to the preamble of the main claim.
  • Such heat exchangers utilize the hot exhaust gases of a Boiler or a motor for preheating, for example, heating or boiler water, so that in this way the in The energy contained in the exhaust gases makes sense to improve the overall efficiency of a plant can be used.
  • combustion gases are in otherwise known manner introduced into the heat exchanger, spread out there and pour out cooled at an outlet end in an exhaust pipe.
  • a fluid such as heating water, heated, which in suitable line structures in the container the heat exchanger is guided.
  • Object of the present invention is therefore to provide a generic To improve heat exchanger device to that this e.g. a (oil or solid) heating burner or internal combustion engine with aggressive condensates can be followed downstream exhaust gases containing without the heat exchanger device itself or the provided therein lines within a short time by aggressive, precipitating in a tank of the heat exchanger Condensate can be damaged or destroyed.
  • a heat exchanger device which is easy to handle (and therefore also in cleaning), is suitable for retrofit purposes (and thus also integrated into existing burner systems later can be) and further preferred for an effective Exhaust gas cleaning ensures soot.
  • the container at least in its lower part, d. H. the one Range, up to which the aggressive condensate of the exhaust gas on the inside of the container precipitates, from one against Made of condensate resistant plastic.
  • the plastic material which is only one for the exhaust gas temperature range of the incoming exhaust gas sufficient Must have temperature resistance (which about given in PVDF problem-free) that made of it (or coated) container of the heat exchanger device is easily manufacturable (in the case of the complete Realization of PVDF as by molding in a corresponding Tool), and the low specific weight
  • the plastic material allows a simple and comfortable Transportability of the device.
  • the plastic crosslinked at least partially is, especially by irradiation, especially preferably crosslinked by irradiation with ⁇ -radiation is.
  • a treatment makes it possible that thermoplastics are converted to thermosets.
  • the temperature resistance by irradiation with ⁇ -radiation from 144 ° C to 155 ° C increase.
  • Such a treatment can also a longer life of the heat exchanger device enable. It is possible that only or preferred such areas are networked, which are in relative proximity to the gas inlet - and thus in an area of elevated temperature - are located. But it is also possible that all surface areas are networked.
  • the container constructed in two parts; that the actual Condensation area forming bottom element is included (preferably solid and by PVDF) from the plastic material realized while a detachably attached thereto Attachment element (attachment unit) in otherwise known Way by means of stainless steel or the like. be formed and such as the exhaust gas inlet, the fittings for the fluid lines or the like. can carry (by still prevailing in the upper area Relatively high exhaust gas temperatures still occur here to no condensation, so far as that for the attachment element material used is not critical).
  • the additional unit flow-optimized in accordance with the training - To form from the plastic.
  • the beneficial, corrosion-resistant Effects of the plastic on the (condensation) inner surface it is the heat exchanger tank to use provided within the scope of a development of the invention, also the fluid lines for passing through the exhaust stream fluid to be heated (e.g., heating water) at least on its outer surface with the plastic (ie e.g. with PVDF); to be used in the usual way
  • Embodiments then incorporate such fluid conduits preferably embedded gas diffusion barrier layers for the clean separation of the fluid from the exhaust gas, whereby for Such a barrier layer in the line aluminum or an aluminum alloy has proven.
  • Virtually significant when using a plurality of coiled It is fluid lines, whose vertical or Relative position to each other by distance or holding devices ensure which, preferably by plugging or insertion between the coils, with comb-like Projections or cuts for a the exhaust gas flow and the heat transfer optimizing position of the respective Make pipe sections in the container.
  • a heat exchanger device realized in the above manner can then be in a particularly simple and flexible Manner, in particular by retrofitting, heating or motor systems are connected downstream, the inventive Plastic used an exhaust gas temperature of the entering exhaust gas is allowed to about 200 ° C (so that for example when used in connection with internal combustion engines from the drive area, a use of the invention Exhaust heat exchanger limited to Niedriglastbreiche could be).
  • a development of the invention provides that on the bottom side in the container collecting liquid condensate at least partly for recycling in the heat exchanger device withdraw; the training provided for this purpose Condensate take-off then effect in.vorteilhafter way two desirable effects: First, this carries (usually injected with an otherwise known nozzle unit) liquid condensate that in the Flue gas entering the heat exchanger earlier (i.e., higher relative to the bottom of the container) precipitates and condenses, so that insofar the condensation rate is increased, at the same time the sprayed condensate ensures Spray for a convenient cleaning of the incoming Gases from dust or other flue gas particles (soot, ash, but also sulfur components or the like.), Just these solids then collect again in the container bottom (weiter Struktursdorf this is to a condensate collection basin with appropriate capacity or opportunities for evacuated regular emptying), in which case the so effectively extracted from the flue gas (fine) dusts can be disposed of simply as condensate sludge.
  • Heat exchanger tank as a silencer (typical damping values of about 9dB can be achieved), so that As a result, additional silencing measures are often superfluous become.
  • two-part container can also (more preferably without Tool) are simply opened and dismantled; the container interior is then available for cleaning.
  • the invention is thereto not limited. So it has surprisingly been favorable and preferably, the invention is also related to use with a drive internal combustion engine, Here, in principle, the same problem of aggressive Condensates in the exhaust stream is formed. In addition, however, leads condensing the exhaust stream to be during the Combustion additionally resulting soot (and this problem is just in the partial load range of drive motors, about heavy marine diesel engines, especially drastically what then causes problems with soot pollution in the environment) dissolved liquid condensate and with this in otherwise known Way for neutralization or disposal or for dosed return discharged into the combustion circuit can be.
  • the device according to the invention in a surprisingly simple and elegant way a way how flexible and easy to manufacture in a resilient and easy permanent heat exchanger solution even for very aggressive Exhaust condensates can be created, so that also heating systems with a solid fuel or oil heating burner the advantages of effective exhaust heat recovery by means of Heat exchangers are easy and inexpensive to access.
  • a heat exchanger tank 10 consists of a bucket-shaped, integrally made of PVDF floor element 12, which forms an outlet 14 for condensate to be discharged.
  • a ring clamp or the like By means of an annular flange 15, a ring clamp or the like.
  • a Attachment 16 made of stainless steel, which laterally an inlet 18 for incoming combustion gas (see arrow direction 19) and additional ones in the upper one Area a breakthrough 20 through a flat cover section of the attachment for the lead out of the cooled Exhaust gas (arrow 21) offers.
  • connection units 22, 24 for incoming and outgoing Cooling fluid here: heating water
  • connection units 22, 24 for incoming and outgoing Cooling fluid here: heating water
  • Fig. 2 illustrates in detail the arrangement and mode of operation in the container interior: Exhaust gas entering the inlet 18, typically one Oil heating system, meets on (not in the figures shown) exhaust baffle and is in the by the arrows shown way down into the container; simultaneously take care of each other in the form of a nested, coaxial triple helix arranged fluid lines 26, 28, 30, that the incoming gas is continuous cools down, up to the gas entered through the condensate on inner walls of the bottom element 12 condenses (typically within the attachment element present exhaust gas temperatures do not cause condensation yet). The condensate then runs on the respective condensation inner surfaces of the Floor element down and collects in the bottom area where it is discharged through the outlet 14.
  • Exhaust gas entering the inlet 18, typically one Oil heating system meets on (not in the figures shown) exhaust baffle and is in the by the arrows shown way down into the container; simultaneously take care of each other in the form of a nested, coaxial triple helix arranged fluid lines 26, 28, 30, that the incoming gas is
  • condensation takes place on the outer surfaces of the lines 26 to 30 (which in Frame of the described embodiment advantageous also made of PVDF or a PVDF coating ), as well as on the outer surface of an exhaust gas or outlet tube 32, which itself in turn preferred and suitably made of PVDF; close to this in otherwise usual way more exhaust pipes.
  • the dripping condensate causes a self-cleaning effect the inner surfaces of the heat exchanger.
  • the collected in the bottom region of the bottom member 12 condensate thus can not be in contact with metallic elements come (thus can not cause corrosion) is heavy metal free and can be neutralized in otherwise known manner and disposed of.
  • the container 12 in Floor area forms a condensate collection basin, which on the one hand, the bottom collecting and removing the condensate allows, if necessary, the mud present in it, from the flue gas washed soot, ash or other Fine particulate matter.
  • the container 12 in Floor area forms a condensate collection basin, which on the one hand, the bottom collecting and removing the condensate allows, if necessary, the mud present in it, from the flue gas washed soot, ash or other Fine particulate matter.
  • the condensing additionally inflowing gas is simplified, on the other hand This spray for additional flue gas cleaning contributes.
  • externally supplied fluid e.g. Fresh water.
  • the inventive Use heat exchange device advantageous, is in use together with a drive internal combustion engine, typically a marine diesel.
  • a drive internal combustion engine typically a marine diesel.
  • an inventive Heat exchanger device looped into the exhaust circuit, again in the manner described above (in the present low load range a typical upper limit temperature of 200 ° C not exceeding) exhaust gas in the Heat exchanger enters, there condensed and additionally with the condensate to be removed soot dissolved and removed with becomes.
  • a cooled exhaust gas flow is also off this significantly freed of soot particles.
  • the (sooty) Condensate can then in turn be suitably collected and during later operating cycles (typically optimized Full load) of a marine engine in carefully dosed Be recycled to the combustion, so that then also a residue-free disposal of the sooty condensate is possible.
  • a suitable, Motor load-dependent automatic is especially suitable.

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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)
EP05010612A 2004-05-17 2005-05-17 Echangeur de chaleur Withdrawn EP1598627A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410024794 DE102004024794B4 (de) 2004-05-17 2004-05-17 Wärmetauschervorrichtung
DE102004024794 2004-05-17

Publications (2)

Publication Number Publication Date
EP1598627A2 true EP1598627A2 (fr) 2005-11-23
EP1598627A3 EP1598627A3 (fr) 2008-07-02

Family

ID=34936565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05010612A Withdrawn EP1598627A3 (fr) 2004-05-17 2005-05-17 Echangeur de chaleur

Country Status (2)

Country Link
EP (1) EP1598627A3 (fr)
DE (1) DE102004024794B4 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006023639B4 (de) * 2006-05-18 2009-06-18 Technaflon Ag Wärmetauschvorrichtung
DE102009008593A1 (de) 2009-02-12 2010-08-19 Robert Bosch Gmbh Wärmetauscher

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494830A1 (fr) * 1980-11-21 1982-05-28 Applic Technologiques Element d'echange de chaleur forme de tubes en forme de serpentins en matiere plastique et recuperateur de chaleur le mettant en oeuvre
EP0066236A1 (fr) * 1981-05-27 1982-12-08 COMPAGNIE GENERALE D'ELECTRICITE Société anonyme dite: Matériau plastique à conductibilité thermique élevée et bonne résistance mécanique, et procédés de préparation de celui-ci
DE3607007A1 (de) * 1986-03-04 1987-09-10 Metz Holger Dr Vorrichtung zur thermischen spaltungsaufbereitung fluessiger brennstoffe fuer brennkraftmaschinen und betriebsverfahren fuer diese
US4953511A (en) * 1989-12-22 1990-09-04 Carrier Corporation Corrosion resistant liquid heating module
EP0405621A2 (fr) * 1985-08-01 1991-01-02 Raytheon Company Chaudière à condensation
DE4414429C1 (de) * 1994-04-26 1995-06-01 Mtu Friedrichshafen Gmbh Verfahren zur Kühlung von dieselmotorischen Abgasen
US5687678A (en) * 1995-01-26 1997-11-18 Weben-Jarco, Inc. High efficiency commercial water heater
DE20007420U1 (de) * 2000-04-19 2000-06-29 Franke Thomas Wärmetauscher

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2515007A1 (de) * 1975-04-07 1976-10-21 Wessels Gerhard Kunststoffbeschichtung fuer waermeaustauscher und rohre fuer waermeaustauscher
DE9300404U1 (de) * 1993-01-14 1993-03-04 Bommer GmbH, 7770 Überlingen Wärmetauscher für Feuerungsanlagen
DE10122329B4 (de) * 2001-05-08 2004-06-03 Tinox Gmbh Wärmetauscher-Vorrichtung mit einer oberflächenbeschichteten Wand, die Medium 1 von Medium 2 trennt

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494830A1 (fr) * 1980-11-21 1982-05-28 Applic Technologiques Element d'echange de chaleur forme de tubes en forme de serpentins en matiere plastique et recuperateur de chaleur le mettant en oeuvre
EP0066236A1 (fr) * 1981-05-27 1982-12-08 COMPAGNIE GENERALE D'ELECTRICITE Société anonyme dite: Matériau plastique à conductibilité thermique élevée et bonne résistance mécanique, et procédés de préparation de celui-ci
EP0405621A2 (fr) * 1985-08-01 1991-01-02 Raytheon Company Chaudière à condensation
DE3607007A1 (de) * 1986-03-04 1987-09-10 Metz Holger Dr Vorrichtung zur thermischen spaltungsaufbereitung fluessiger brennstoffe fuer brennkraftmaschinen und betriebsverfahren fuer diese
US4953511A (en) * 1989-12-22 1990-09-04 Carrier Corporation Corrosion resistant liquid heating module
DE4414429C1 (de) * 1994-04-26 1995-06-01 Mtu Friedrichshafen Gmbh Verfahren zur Kühlung von dieselmotorischen Abgasen
US5687678A (en) * 1995-01-26 1997-11-18 Weben-Jarco, Inc. High efficiency commercial water heater
DE20007420U1 (de) * 2000-04-19 2000-06-29 Franke Thomas Wärmetauscher

Also Published As

Publication number Publication date
EP1598627A3 (fr) 2008-07-02
DE102004024794A1 (de) 2005-12-08
DE102004024794B4 (de) 2008-12-04

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