EP0076391B1 - Dispositif de production de chaleur - Google Patents

Dispositif de production de chaleur Download PDF

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Publication number
EP0076391B1
EP0076391B1 EP82108175A EP82108175A EP0076391B1 EP 0076391 B1 EP0076391 B1 EP 0076391B1 EP 82108175 A EP82108175 A EP 82108175A EP 82108175 A EP82108175 A EP 82108175A EP 0076391 B1 EP0076391 B1 EP 0076391B1
Authority
EP
European Patent Office
Prior art keywords
pots
cover
block
anyone
continuous flow
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.)
Expired
Application number
EP82108175A
Other languages
German (de)
English (en)
Other versions
EP0076391A3 (en
EP0076391A2 (fr
Inventor
Reinhold Pfaudler
Willy Kober
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.)
Al Ko Polar GmbH Maschinenfabrik
Original Assignee
Al Ko Polar GmbH Maschinenfabrik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19813139422 external-priority patent/DE3139422A1/de
Priority claimed from DE3210383A external-priority patent/DE3210383C2/de
Application filed by Al Ko Polar GmbH Maschinenfabrik filed Critical Al Ko Polar GmbH Maschinenfabrik
Priority to AT82108175T priority Critical patent/ATE18694T1/de
Publication of EP0076391A2 publication Critical patent/EP0076391A2/fr
Publication of EP0076391A3 publication Critical patent/EP0076391A3/de
Application granted granted Critical
Publication of EP0076391B1 publication Critical patent/EP0076391B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G13/00—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/02—Domestic hot-water supply systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • 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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • 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

Definitions

  • the invention relates to a device for heat recovery of the type specified in the preamble of claim 1.
  • Such a device is known from FR-A 22 58 596.
  • a heat recovery unit in the form of a heat pump is provided, so that only monovalent operation is possible.
  • the refrigeration part and the heat exchanger assigned to it form an inseparable unit embedded in an insulation jacket, which can only be combined with a completely separate unit of the same or a different design, provided an increase in performance or bivalent operation should be achieved. In such a case, however, there would be a high installation effort and space requirement.
  • Another disadvantage of the inseparable unit provided in the known arrangement is the resulting complication of maintenance and repair work.
  • the refrigeration part cannot be removed from the assigned heat exchangers, in the event of a defect in one element of the refrigeration part, the refrigeration part cannot simply be replaced, but rather the entire unit consisting of the refrigeration part and heat exchangers must be replaced, which requires a great deal of effort. Quite apart from this, it would be necessary in the known arrangement to remove the thermal insulation comprising the entire unit in order to be able to access the individual components of this unit at all.
  • Another disadvantage of the known arrangement results from the head-side supply or discharge of the medium to be cooled or heated in each case. This not only results in a fixed, non-detachable arrangement of the head plate, which makes disassembly of the refrigeration part impossible, but also results in unfavorable flow conditions in the heat exchangers.
  • GB-A 731 261 also shows a device with only one heat recovery unit in the form of a heat pump, which has a compressor mounted on a mounting platform and a condenser designed as a coil, immersed in an associated container that can be filled with medium to be heated. Only monovalent operation is also possible with this known device. Quite apart from this, a simple exchange of the entire refrigeration part without opening the refrigerant circuit is also not possible in this known arrangement.
  • FR-A 23 12 735 shows a bivalent heating system in which the boiler that can be heated by means of the condenser of a heat pump is followed by a boiler that can be heated by means of an electric heating element.
  • the heating rod, the condenser and the evaporator of the heat pump are each arranged in a boiler with a comparatively large capacity.
  • These boilers are not integrated in a block here, but are set up completely separately next to each other, which requires a lot of space and installation effort.
  • the first component consists of the block containing the open-top pots and the conventional instantaneous water heater, which is closed at the top by a top plate that forms an exact reference plane.
  • the second component consists of the complete refrigeration part with compressor, evaporator and condenser, whereby this refrigeration part has the lid assigned to the pots as an assembly platform.
  • the third component is formed by the sound-absorbing hood which can be detachably placed on the block and spans the compressor accommodated on the outside of the cover forming a mounting plate. This not only ensures reliable shielding of the compressor, but advantageously also allows quick access and good access to the compressor.
  • the refrigeration part can be easily and simply lifted off the block that accommodates the pots and the instantaneous water heater, without intervention in the refrigerant circuit and without intervention in the circuits of the one to be heated or cooled Medium would be required.
  • the entire refrigeration part can therefore advantageously be simply removed and replaced.
  • a refrigeration il certain performance is to be exchanged for another refrigeration part for the purpose of a performance variation.
  • these measures also enable the entire device to be expanded in several stages. In the first stage, the block can simply be set up with the conventional instantaneous water heater and the empty pots.
  • a refrigeration part can then be added in a further expansion stage.
  • the integration of the evaporator or condenser Pots and the conventional instantaneous water heater in a common block and the suspension of the above-mentioned parts on a top plate that delimits the block in an advantageous manner not only results in a reliable mounting option for the cover that forms a mounting platform for the cooling part, but also enables reliable fixing and insulation the pots and the water heater.
  • the sleeve provided here delimits a flow chamber containing the respectively assigned coil and thus ensures exact guidance of the flow medium passing through the heat exchanger and thus good heat transfer.
  • the measures of claim 5 ensure that the device according to the invention can be switched from monovalent to bivalent operation and vice versa simply by switching the heat pump or the conventionally heated instantaneous water heater on or off.
  • the circuit proposed here it is also ensured that the medium to be heated is practically preheated by the condenser of the heat pump and then only needs to be brought to the desired final temperature with the aid of the continuous-flow heater, which represents an economical mode of operation.
  • the heat pump on which FIGS. 1 to 3 are based consists of a refrigeration part designed as a structural unit, comprising a compressor 1, an evaporator 2 and a condenser 3, and of a foamed block 4 which accommodates the structural unit forming the refrigeration part has two pots 5 embedded in the foam material, which are provided with connections for supplying and discharging the medium to be cooled by the evaporator 2 or the medium to be heated by the condenser 3. Domestic or heating water is normally used as the medium to be heated.
  • the foamed block 4 is provided with an all-round edging 8 made of thin sheet metal, which increases its dimensional stability and impact resistance.
  • the pots 5 foamed into the block 4 are fixed by the foam material surrounding them.
  • a support frame or the like can be omitted in such a self-supporting construction.
  • the top of the block 4 is covered by a head plate 9 which is recessed in the region of the pots 5 and attached to them in a flange-like manner.
  • One of the pots 5, here the one shown on the right in FIG. 1, is assigned to the evaporator 2 and one, here the one shown here in FIG. 1, is assigned to the condenser 3.
  • a conventionally heatable continuous-flow heater 28 is provided, which is likewise integrated in the block 4 and is hydraulically connected to the pot 5 accommodating the condenser 3.
  • the instantaneous water heater 28 is suspended from the head plate 9 via spacer webs 29 and, like the pots 5, is foamed into the foam material filling the trough-shaped surround 8, which ensures all-round insulation, support and sound insulation.
  • the instantaneous water heater 28 is arranged as directly as possible to accomplish the most direct hydraulic coupling possible with the associated condenser-side pot 5.
  • the two pots 5 integrated into the block 4 are simply so far apart from one another that the instantaneous heater 28 can be arranged in the area between the two pots 5. This results in a very compact and elegant design.
  • the instantaneous water heater 28 is designed in the exemplary embodiment shown as a boiler which has a combustion chamber 31 delimited by an insert 30 with a gas flue 32 connected to it.
  • a low-temperature boiler is expediently used, which can be operated without the risk of corrosion in a temperature range in which the assigned heat pump also operates.
  • An oil or gas burner 33 is provided here for heating the combustion chamber 31.
  • the boiler is provided on the burner side with a connecting piece which passes through the skirt 8 of the block 4 and has a flange 34 to which the burner 33 can be flanged.
  • an outlet connection 35 is provided opposite the burner and also led out of the casing 8, to which a pipe or the like leading to a chimney can be connected.
  • the combustion chamber 31 and the throttle cable 32 are accessible via a maintenance flap 36, which can be reached via a shaft in the block 4 which can be closed by a flap 37 provided in the region of the casing 8.
  • a maintenance flap 36 which can be reached via a shaft in the block 4 which can be closed by a flap 37 provided in the region of the casing 8.
  • Instantaneous water heater e.g. B. an electrically heated, or heated with solid or dusty fuels water heater can be provided.
  • the jacket surrounding the combustion chamber 31 and the gas flue 32 of the boiler provided here is double-walled to form a flow chamber 38 for the medium to be heated.
  • the flow chamber 38 is arranged downstream of the annular space 15 of the pot 5 on the condenser side. This results in a hydraulic series connection with a flow heater arranged downstream, which ensures particularly economical operation and particularly easy control-related control of the entire hydraulic series connection.
  • the flow chamber 38 and the condenser-side pot 5 located next to it are connected to one another by means of a short overflow sleeve 39.
  • the overflow sleeve 39 is arranged in the region of the lower level of the flow chamber 38 or pot 5.
  • the evaporator-side pot 5 and the hydraulic unit formed from the flow chamber 38 and the condenser-side pot 5 are each associated with connecting pieces 6, 7 for the inlet and outlet of the medium to be heated.
  • the connecting pieces 6 and 7 of the hydraulic unit formed from the flow chamber 38 and the condenser-side pot 5 are provided here, as can be seen in FIG. 2, in the upper level of the pot 5 or the flow chamber 38 and can advantageously be arranged next to one another to accomplish a simple installation of the feed lines be arranged.
  • the inflow of medium to be warmed up flows into the condenser-side pot 5.
  • the outflow takes place from the flow chamber 38 on the flow heater side.
  • the pot 5 on the evaporator side is acted upon by a primary energy carrier, for example groundwater, waste water or the like, via connections 6 and 7 which are offset in terms of height from one another.
  • a primary energy carrier for example groundwater, waste water or the like
  • the evaporator 2 and the condenser 3 consist of a refrigerant, which evaporates in the evaporator 2 at relatively low temperatures and condenses after compression by means of the compressor 1 in the condenser 3, giving off heat, each in the form of an exposed pipe coil 13 are, which is introduced approximately coaxially to the top axis in the associated pot 5.
  • the diameter of the coils 13 forming the evaporator 2 and the condenser 3 is dimensioned such that there is an arrangement of the tube turns close to the wall.
  • the condenser or Evaporator tubes may be provided with ribs arranged in the area of their outer circumference.
  • the coils 13 forming the evaporator 2 or the condenser 3 are placed on a cover 10 which extends over both pots and closes the associated pot 5.
  • the cover 10 expediently lies on the head plate 9 with the interposition of a seal and is detachably connected to it in the region of the upper edge of each pot 5 by screws 11, as can best be seen in FIG.
  • the compressor 1, the evaporator 2 and the condenser 3 each have a refrigerant inlet and a refrigerant outlet and are connected to one another in FIG. 1 for the sake of simplicity only by lines 12 indicated by dash-dotted lines so that the desired refrigerant circuit can take place.
  • the medium passing through the heat exchanger, which is delimited by a pot 5, is guided along the respectively assigned pipe coil 13, which forms the evaporator 2 or the condenser 3.
  • a sleeve 14 is provided in the area of each pipe coil 13 which is surrounded by it with sufficient wall clearance and which extends with its lower end into the area of the pot bottom.
  • These bushes 14 each delimit an annular space 15 which runs around in the region of the pot wall and is included in the flow path of the medium to be heated or cooled.
  • the bushes 14 protruding into the pots 5 can simply be welded to the associated cover 10.
  • the pots 5 can be enamelled in the area of their inner surface, which results in a high level of resistance.
  • the lid 10 and the bushings 14 attached thereto can be made of stainless steel.
  • the coils 13 forming the evaporator 2 or the condenser 3 consist of copper tubes which are passed through the cover 10 on the input and output sides and can be screwed and / or soldered to the connecting lines 12.
  • the coils 13 are designed here as double coils, the adjacent ends of which form the inlet and outlet.
  • the pipe coils 13 could also be designed as single coils, at the lower end of which a riser pipe which expediently runs inside the bush 14 could be connected.
  • the compressor 1 piped with the evaporator 2 and the compressor 3 in a manner known per se is with stand feet 17 on the side of the pipe coils 13 opposite Cover 10 placed on this and screwed to accomplish sufficient securing.
  • the feet 17 can be underlaid by vibration dampers 18 designed approximately as rubber buffers.
  • the compressor 1 is enclosed by a sound insulation hood 19. This consists of a wall 20 designed approximately as a plastic deep-drawn molding, which is lined in the area of its inner surface with insulating material 21, for example with foam sheets.
  • the sound insulation hood 19 is seated on a peripheral edge bend 22 of the head plate 9.
  • the sound insulation hood 19 is provided in the region of its lower edge with a peripheral edge claw 23 which engages over the edge bend 22.
  • a circumferential sealing strip 24 is inserted into the edge claw 23, which prevents the transmission of structure-borne noise.
  • the cover 10 In order to facilitate the handling of the cooling part which can be preassembled as a complete structural unit on the cover 10 as a mounting plate, the cover 10, as can be seen from FIG the assembly staff can be provided. With this, the entire refrigeration part can be lifted off or lowered onto block 4 as a complete structural unit.
  • the circumferential edge bend 22 of the head plate 9 can be provided in the region of its narrow sides with aligned push-through holes 27 for pushing through carrying rods, which enable the block 4 to be handled comfortably.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Other Air-Conditioning Systems (AREA)

Claims (9)

1°) Appareil de production de-chaleur au moyen d'une pompe thermique avec au moins un élément de froid comportant un évaporateur (2), un compresseur (1) et un condensateur (3), lesdits évaporateur (2) et condensateur (3) étantsous forme de tuyaux suspendus l'un à côté de l'autre qui contiennent un véhiculede froid, traversent un couvercle (10) pour deux réservoirs qui sont situés l'un àcôté de l'autre et sont munis de raccords (6, 7) pour un véhicule à refroidir ou respectivement à chauffer, et entrent d'en haut dans un réservoir respectif, et ledit compresseur (1) étant situé sur le côté extérieur du couvercle (10), caractérisé en ce que les réservoirs sont sous forme de pots (5) ouverts en haut dans lesquels le tuyau respectif sous forme de serpentin (13) découvert et proche de la paroi peut être introduit, lesdits pots (5), de compagnie avec un chauffe-eau à chauffage instantané (28) quiest traversé par le véhicule à chauffer et qu'on peut faire fonctionner d'une façon conventionnelle, étant logés dans un bloc (4) muni d'une enceinte (8), etdont les bords supérieurs sont logés sur une plaque couvrante (9) qui les entoure comme une bride, forme la limite supérieure du bloc (4) et porte aussi le chauffe-eauà chauffage instantané (28), ledit couvercle (10) qui referme les deux pots (5) ensembleétant arrêté d'une façon détachable sur ladite plaque couvrante (9), portantsur son côté intérieur les serpentins (13) qu'on peut introduire dans les pots (5) et surson côté extérieur le compresseur (1) qui est entouré d'un chapeau (19) amortisseurde son embrassant le bord supérieur du bloc (4) et qu'on peut poser sur celui-ci.
2°) Appareil tel que revendiqué en 1 caractérisé en ce qu'il y aune boîte (14) près de chaque serpentin (13) fait de tuyaux à ailettes de préférence,qui est embrassée par celui-ci et attachée au couvercle (10).
3°) Appareil tel que revendiqué dans l'une quelconque des revendications précédentes caractérisé en ce que les pots (5) et le chauffe-eau à chauffage instantané (28) sont entourés de mousse dans le bloc (4).
4°) Appareil tel que revendiqué dans l'une quelconque des revendications précédentes caractérisé en ce que le chauffe-eau à chauffage instantané (28) est sous la forme d'une chaudière à température basse avec une chambre de combustion(31 ) qu'on peut faire fonctionner de préférence au moyen d'un brûleur (33) à mazout ou à gaz et avec une chemise à deux parois qui enveloppe ladite chambre de combustion (31), forme une chambre de circulation (38) et possède un manchon (35) d'échappement des fumées et gaz, une bride (34) à accueillir le brûleur (33) et une cage à nettoyage.
5°) Appareil tel que revendiqué dans l'une quelconque des revendications précédentes caractérisé en ce que le chauffe-eau à chauffage instantané (28) et le pot (5) du condensateur (3) sont en série de courant, le chauffe-eau à chauffage instantané (28) se trouvant de préférence en aval du pot (5) respectifdu condensateur (3) et le pot (5) du condensateur (3) et le chauffe-eau à chauffage instantané (28) étant branchés lüun avec l'autre en ce qui concerne le courant au moyen d'au moins un collet (39) de trop-plein situé dans leur niveau inférieur, et possédant dans leur niveau supérieur des raccords d'admission (6) ou respectivement des raccords d'écoulement (7).
6°) Appareil tel que revendiqué dans l'une quelconque des revendications précédentes caractérisé en ce que le chauffe-eau à chauffage instantané (28), qui de préférence est entouré de tous les côtés de mousse dans le bloc (4) respectif, est situé entre les deux pots (5) et, par barres (29) d'espacement, suspendude la plaque (9) couvrant le bloc (4).
7°) Appareil tel que revendiqué dans l'une quelconque des revendications précédentes caractérisé en ce que le couvercle (10) est muni de deux anses qui sont en vis-à-vis et sous forme de coudes (25) du bord du couvercle (10) de préférence munis de niches (26), et que la plaque couvrante (9) est munie d'un coude (22) contournant du bord qui, sur deux côtés opposés, possède des trous (27) à alignement l'un avec l'autre pour y faire passer des barres de transport détachables.
8°) Appareil tel que revendiqué dans l'une quelconque des revendications précédentes caracérisé en ce que chaque pot (5), sur sa surface intérieure, est muni d'une couche protectrice, de préférence en émail.
9°) Appareil tel que revendiqué dans l'une quelconque des revendications précédentes caractérisé en ce que le chapeau (19) amortisseur de son peut être mis sur le coude (22) contournant du bord de la plaque couvrante (9) interposant un ruban de joint (24) contournant, et qu'il déborde la plaque couvrante (9) d'une griffe latérale (23).
EP82108175A 1981-10-03 1982-09-04 Dispositif de production de chaleur Expired EP0076391B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82108175T ATE18694T1 (de) 1981-10-03 1982-09-04 Vorrichtung zur waermegewinnung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3139422 1981-10-03
DE19813139422 DE3139422A1 (de) 1981-10-03 1981-10-03 Waermepumpe
DE3210383 1982-03-20
DE3210383A DE3210383C2 (de) 1982-03-20 1982-03-20 Vorrichtung zur Wärmegewinnung

Publications (3)

Publication Number Publication Date
EP0076391A2 EP0076391A2 (fr) 1983-04-13
EP0076391A3 EP0076391A3 (en) 1983-09-28
EP0076391B1 true EP0076391B1 (fr) 1986-03-19

Family

ID=25796527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108175A Expired EP0076391B1 (fr) 1981-10-03 1982-09-04 Dispositif de production de chaleur

Country Status (2)

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EP (1) EP0076391B1 (fr)
DE (1) DE3269994D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5440894A (en) * 1993-05-05 1995-08-15 Hussmann Corporation Strategic modular commercial refrigeration

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB731261A (en) * 1951-03-20 1955-06-08 British Thomson Houston Co Ltd Improvements in and relating to water heating and room cooling systems
US3268989A (en) * 1962-03-26 1966-08-30 Carrier Corp Method of assembling a ceramic lined water heater
DK30474A (fr) * 1974-01-21 1975-09-15 M Fordsmand
FR2305935A1 (fr) * 1975-04-01 1976-10-29 Locolas Claude Caisson conditionne modulable, demontable controlant la pousse des produits faconnes en boulangerie
FR2312735A1 (fr) * 1975-05-30 1976-12-24 Munich Bernard Pompe a chaleur pour eau chaude domestique
FR2320511A1 (fr) * 1975-08-05 1977-03-04 Commissariat Energie Atomique Perfectionnement aux pompes a chaleur
DE2540004C2 (de) * 1975-09-09 1982-05-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Warmwasserbereiter
DE2742845A1 (de) * 1977-09-23 1979-04-05 Valentin Rosel Solar-energie-zentrale
DE2756721A1 (de) * 1977-12-20 1979-06-21 Valentin Rosel Solar-energie-zentrale
US4207752A (en) * 1978-09-06 1980-06-17 Michael Schwarz Method and apparatus for recovering heat from waste water
DE2908355A1 (de) * 1979-03-03 1980-09-18 Antonio M Dipl Ing Celi Verfahren und vorrichtung zum temperieren eines im kreislauf durch einen verbraucher gefuehrten waermetraegermediums
DE2918256A1 (de) * 1979-05-05 1980-11-06 Bruno Kuemmerle Warmwasserbereiter
DE2946512A1 (de) * 1979-11-17 1981-05-21 Al-Ko Polar Gmbh Maschinenfabrik, 8876 Jettingen-Scheppach Waermepumpe zum beheizen eines boilers
DE3015525C2 (de) * 1980-04-23 1982-07-01 Langbein-Pfanhauser Werke Ag, 4040 Neuss Anlage zum Destillieren von Flüssigkeiten mit einer Wärmepumpe

Also Published As

Publication number Publication date
DE3269994D1 (en) 1986-04-24
EP0076391A3 (en) 1983-09-28
EP0076391A2 (fr) 1983-04-13

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