EP0133271B1 - Générateur pour une pompe à chaleur à sorption - Google Patents

Générateur pour une pompe à chaleur à sorption Download PDF

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Publication number
EP0133271B1
EP0133271B1 EP84108706A EP84108706A EP0133271B1 EP 0133271 B1 EP0133271 B1 EP 0133271B1 EP 84108706 A EP84108706 A EP 84108706A EP 84108706 A EP84108706 A EP 84108706A EP 0133271 B1 EP0133271 B1 EP 0133271B1
Authority
EP
European Patent Office
Prior art keywords
container
generator according
ribs
heat exchanger
ribbed
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
EP84108706A
Other languages
German (de)
English (en)
Other versions
EP0133271A3 (en
EP0133271A2 (fr
Inventor
Peter Goebel
Paul Heimbach
Hans-Joachim Mehlau
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.)
COFRABEL N.V.
SCHONEWELLE B.V.
Vaillant Austria GmbH
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Original Assignee
Vaillant Austria GmbH
COFRABEL NV
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
SCHONEWELLE BV
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 DE19838322959 external-priority patent/DE8322959U1/de
Priority claimed from DE19838322960 external-priority patent/DE8322960U1/de
Priority claimed from DE19838322962 external-priority patent/DE8322962U1/de
Application filed by Vaillant Austria GmbH, COFRABEL NV, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, SCHONEWELLE BV filed Critical Vaillant Austria GmbH
Priority to AT84108706T priority Critical patent/ATE41823T1/de
Publication of EP0133271A2 publication Critical patent/EP0133271A2/fr
Publication of EP0133271A3 publication Critical patent/EP0133271A3/de
Application granted granted Critical
Publication of EP0133271B1 publication Critical patent/EP0133271B1/fr
Expired 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
    • F25B33/00—Boilers; Analysers; Rectifiers

Definitions

  • the present invention relates to an expeller for a sorption heat pump according to the preamble of the independent claim.
  • an absorption refrigeration system which describes an expeller heated by a burner with a solvent heat exchanger.
  • the expeller is designed as a vessel that extends into a combustion chamber and is heated by an annular gas burner. Heat exchange elements are located on the outer circumference of the expeller.
  • an absorption heat pump system has become known from DE-A-2 913 066, which has an expeller with an exhaust gas heat exchanger, which is arranged in an exhaust duct at a higher level, but independently of the expulsion vessel.
  • the present invention is based on this prior art, the task of improving the thermal efficiency of an expeller of a heat pump to integrate a solvent heat exchanger in the expeller and optimize it in terms of operation, and also to integrate an exhaust gas heat exchanger into this expeller in such a way that it is connected to a Place is provided in which the flow cross section for the exhaust gas is constricted.
  • the invention consists in the characterizing features of the independent claim.
  • the expeller 1 has an insulating housing 2 which encloses a hollow cylinder.
  • the actual container 3 which is filled with a mixture of refrigerant (ammonia) and solvent (water), is suspended within the housing at a distance from its inner wall.
  • the housing 2 is surrounded by a cover 4 at a distance 5, so that a gap space is used to guide the air. Air can flow in through openings 6 on the top of the cover 4 and sweep along the outer jacket of the cover 4 in the gap space formed by the distance 5 and absorb heat from there.
  • the air enters the interior 8 of the housing 2 through an air passage opening 7 arranged at the bottom of the cover 4.
  • the container 3 has a substantially cylindrical shape, at its lower end 9 it is provided with a hemispherical rounded portion 10.
  • This hemispherical rounding forms the deepest part of the expeller, underneath is a hollow cylindrical gas burner 11, which is supplied with gas via a fuel feed line 12.
  • a conical guide body 14 is arranged between the top 13 of the burner 11 and the hemispherical rounding 10.
  • a heat exchange zone extends above the hemispherical rounded portion 10 between the flue gases of the burner and the interior 17 of the container 3.
  • This heat exchange zone consists of ribs which are applied to the outer jacket of the container .
  • the ribs are part of a sheet metal strip which is bent and, with its inside diameter in the manner of a screw, is in contact with the outer jacket of the container 3 while maintaining distances at height level. Since the band is provided with slots 18 in the area of its outer diameter bearing against the inner jacket 15 of the housing 2, twisted ribs 19 are formed, which are inclined in a range of 20 to 30 ° relative to the longitudinal axis of the container. Experiments have shown that the angle should be selected in the range from 10 to 40 °, 30 ° being the optimum.
  • the slots 18 and the ribs 19 can be seen clearly from FIG. 2, likewise the application of the outer diameter 20 of the sheet metal strip 21 to the inner casing 16 of the housing 2 and the application of the inner diameter 22 of the sheet metal strip to the outer casing of the container 3.
  • the height 23 of the entire rib zone relates to the outer diameter 20 as 1.1 to 1.5.
  • a truncated cone part 24 protruding into the interior 8 of the housing 2 is arranged on the upper side of the rib zone, which starts from the inner jacket 15 of the housing 2 and extends narrowing upwards. It constricts the annular space between the outer jacket of the container 3 and the inner jacket of the housing 2 by two-thirds.
  • an exhaust gas heat exchanger 26 is arranged in the annular space 25, which is connected to a return line 27 for rich solution and whose supply line 28 leads to the interior 17 of the container 3.
  • an exhaust nozzle provided with a blower 30 31 connected, which is connected to a chimney, not shown.
  • the blower is driven by a motor 32. It is possible to regulate the engine speed in such a way that the fan output is adapted to the gas flow rate to the burner as a function of a heating curve in order to achieve a ratio control between air and fuel.
  • the interior 17 of the container 3 has the expeller to be described, together with the rectifier: the rich solution coming from the temperature changer connected to the line 28 is introduced into the interior 3 via a drill socket 33, and that at the highest level.
  • the rich solution flows over a large number of column trays, the uppermost one is designated by 34 and the lowermost 35 is arranged approximately at the level of the upper end 29 of the cover 4 or of the housing 2.
  • the overflow pipes 36 accordingly bring the rich solution to the deepest floor and from there via a central overflow pipe 36 to a solvent heat exchanger 37.
  • the solvent heat exchanger 37 consists of two concentric tubes 37 and 38, the tube 38 being identical to the outlet line for poor solution 39 leading to the temperature changer.
  • the wall of the inner tube 38 which is filled with hot, poor solution, preheats the rich solution instead, which flows down in the annular space between the tubes 38 and 37.
  • the lower part of the solvent heat exchanger 37 forms a coil 40 to which the line 38 is wound.
  • This coil is surrounded by an extension 41 of the tube 37.
  • the extension has an exit point 42 for the rich solution, this exit point lies in the region of the hemispherical rounding 10.
  • This annular space 43 is provided with ribs which are on the Inner shell of the container 3 are arranged.
  • the ribs consist of a corrugated strip or of individual angular parts 44, which are clearly visible from the figure two.
  • the shape of the ribs results in the interior 45 and the exterior rib 46, both of which are filled with tube sections 47.
  • the pipe sections serve for better heat transfer of the heat present on the jacket of the container 3 to its interior.
  • the height of the zone of the inner ribs corresponds to zone 23 of the outer jacket.
  • the refrigerant-solvent mixture is in the interior 17 of the container 3 up to a level 48.
  • An insulating barrier layer 49 is arranged above this level.
  • the resulting poor solution is withdrawn from a solution drain pipe 50 that ends below level 48.
  • the solvent drain pipe is connected to coil 40.
  • the flue gas aftercooler consists of a finned tube which is wound helically around the container 3 and passes through the annular space between the vessel 3 and the housing 2.
  • This exhaust gas heat exchanger is located above the heat exchange zone 23 of the expeller.
  • the solvent discharge pipe ends at a level which is below the - fluctuating level 48 even under unfavorable operating conditions.
  • the end of the solvent discharge tube is preferably arranged at approximately two thirds of the height of the heat exchange zone 23. It is possible to set this height between half and three quarters.
  • the solvent heat exchanger 37 consisting of the concentric tubes 36 and 38, in the upper area only from the two concentric tubes, in the lower area, that is, in the ribbing zone of the expeller, on the other hand from the expansion with the inner tube 38 wound inside to form a tube coil 40.
  • the pipe coil emerges from the side wall of the extension 41 on the underside approximately in the region of the outlet opening 42 and is directed upwards to a suction pipe 50. It is provided here that the beginning of the suction pipe, which is connected to the interior 17, is placed in such a way that it will certainly also be below the lowest expected level of the liquid level 48.
  • the end of the suction pipe is preferably above the upper end 51 of the extension, but below the upper end of the ribbing zone 23.
  • the suction pipe near the junction with the extension 41 is provided with small bores 52, so that not only refrigerant vapor but also solution is removed from the interior 17 through the small bore 52 even in the case of a very low level 48 can be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (11)

1. Bouilleur (1) pour une thermopompe à sorption avec une entrée (27) pour la solution riche et un récipient (3) plongeant dans une chambre de combustion en créant ainsi un espace annulaire (25), ledit récipient étant rempli par l'entrée d'un mélange de frigorigène/absorbant, et muni sur ses surfaces extérieure et intérieure d'ensembles d'échange de chaleur nervurés, les nervures (19) disposées sur la surface extérieure (16) du récipient (3) s'étendant dans une zone d'échange de chaleur et étant inclinées de 10° à 40° par rapport à l'axe du récipient, caractérisé par le fait qu'il existe entre la zone d'échange de chaleur et le diamètre extérieur un rapport h/DA = 1,1 à 1,5 où DA est le diamètre extérieur du récipient y compris deux nervures opposées, et h, l'étendue de la zone d'échange de chaleur, et que, dans l'intérieur (17) du récipient (3), il est prévu un échangeur de chaleur (37) alimenté en contre-courant d'une part en solution riche, froide, et en solution pauvre, chaude, et que dans l'espace annulaire (25) est prévu, au-dessus de la zone d'échange de chaleur, un échangeur de chaleur (26) dont la conduite d'alimentation (27) est reliée à l'entrée, et dont la sortie est reliée à l'entrée de l'échangeur de chaleur (37).
2. Bouilleur suivant la revendication 1, caractérisé par le fait que la paroi intérieure du récipient (3) est munie de nervures qui forment des espaces séparés entre eux et faisant fonction de canalisations, et que ces espaces sont remplis de corps creux.
3. Bouilleur suivant la revendication 2, caractérisé par le fait que les nervures constituent une bande en tôle ondulée, les diamètres extérieur DA et intérieur DI formés par la bande se trouvant dans un rapport de 1,4 à 1,7 entre eux, et que les espaces (45, 46) résultant de l'ondulation de la bande sont remplis de corps creux (47).
4. Bouilleur suivant l'une des revendications 1 à 3 avec un brûleur (11) disposé sous le récipient (3), caractérisé par le fait que le fond (10) du récipient (3) est protégé vis-à-vis du brûleur par un corps conique (14).
5. Bouilleur suivant la revendication 1, caracterisé par le fait que les nervures (19) disposées sur la paroi extérieure (16) du récipient (3) sont formées par une bande en tôle recourbée et munie sur son pourtour de fentes et qui, par son diamètre intérieur, s'applique directement sur la paroi extérieure du récipient.
6. Bouilleur suivant la revendication 1, caractérisé par le fait que l'échangeur de chaleur (37) est formé dans sa partie supérieure par deux tubes concentriques (36/38), mais dans sa partie inférieure, par un serpentin (40) formé par le tube intérieur (38) et logé dans une partie évasée (41) du tube extérieur (36).
7. Bouilleur suivant la revendication 6, caractérisé par le fait qu'au bout inférieur de la partie évasée (41), il est prévu au moins une ouverture de sortie (42) de l'espace annulaire entre les deux tubes (36/38), débouchant dans l'intérieur (17) du récipient.
8. Bouilleur suivant l'une des revendications 6 ou 7, caractérisé par le fait qu'au serpentin (40) est branché un tube d'aspiration (50) dont l'entrée se trouve à un niveau qui se situe entre le niveau (48) du liquide dans le récipent (3) et le bord supérieur de la partie évasée (41).
9. Bouilleur suivant la revendication 8, caractérisé par le fait que le tube d'aspiration (50) présente à son bout inférieur au moins un petit trou (52) communiquant avec l'intérieur (17) du récipient (3).
10. Bouilleur suivant la revendication 8 ou 9, caractérisé par le fait qu'au bas de la partie évasée (41), le tube d'aspiration (50) pénètre dans celle-ci et continue par le serpentin (40).
11. Bouilleur suivant la revendication 1, caractérisé par le fait que l'échangeur de chaleur (26) est constitué par un tube à ailettes enroulé en forme d'hélice sur la paroi extérieure (16) du récipient (3).
EP84108706A 1983-08-06 1984-07-24 Générateur pour une pompe à chaleur à sorption Expired EP0133271B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108706T ATE41823T1 (de) 1983-08-06 1984-07-24 Austreiber fuer eine sorptionswaermepumpe.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE8322959U 1983-08-06
DE19838322959 DE8322959U1 (de) 1983-08-06 1983-08-06 Sorptionswaermepumpe
DE8322962U 1983-08-06
DE8322960U 1983-08-06
DE19838322960 DE8322960U1 (de) 1983-08-06 1983-08-06 Austreiber fuer eine sorptionswaermepumpe
DE19838322962 DE8322962U1 (de) 1983-08-06 1983-08-06 Austreiber fuer eine sorptionswaermepumpe

Publications (3)

Publication Number Publication Date
EP0133271A2 EP0133271A2 (fr) 1985-02-20
EP0133271A3 EP0133271A3 (en) 1985-09-11
EP0133271B1 true EP0133271B1 (fr) 1989-03-29

Family

ID=27207552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108706A Expired EP0133271B1 (fr) 1983-08-06 1984-07-24 Générateur pour une pompe à chaleur à sorption

Country Status (2)

Country Link
EP (1) EP0133271B1 (fr)
DE (1) DE3477509D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008003630A1 (de) * 2008-01-09 2009-07-16 Helioplus Energy Systems Gmbh Hybridklimatisierungssystem

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE549116C (de) * 1928-12-08 1932-04-23 Bruno Lehmann Austreiber fuer Absorptionsmaschinen
GB386811A (en) * 1931-02-25 1933-01-26 Electrolux Ltd Improvements in or relating to absorption refrigerating apparatus
GB548519A (en) * 1941-09-09 1942-10-13 Charles Alfred Payne Improvements relating to boilers of continuous absorption refrigerating machines
US3254507A (en) * 1965-05-12 1966-06-07 Whirlpool Co Generator for absorption refrigeration system
FR1471989A (fr) * 1966-03-24 1967-03-03 Carrier Corp Perfectionnements au système de réfrigération par absorption
US3407625A (en) * 1966-09-01 1968-10-29 Babcock & Wilcox Co Vapor generator
DE2913066A1 (de) * 1979-03-23 1980-10-02 Brocks Absorptions-waermepumpenanlage
DE3229321A1 (de) * 1982-08-05 1984-02-09 ASK Technische Entwicklungen GmbH + Co Betriebs-KG, 8580 Bayreuth Direkt-befeuerter austreiber fuer absorptionssysteme

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE735163C (de) * 1940-11-30 1943-05-10 Bbc Brown Boveri & Cie Waermeaustauscher, insbesondere fuer Absorptionskaeltemaschinen
US3520282A (en) * 1968-07-01 1970-07-14 Carrier Corp Refrigeration generator construction
DE3028216C2 (de) * 1980-07-25 1982-09-09 Ask Techn. Entwicklungen Gmbh & Co Betriebs Kg, 8580 Bayreuth Kocher für direkt befeuerte Absorptionswärmepumpen
DE3143668A1 (de) * 1981-11-04 1983-05-11 Rekord Heizungs- u. Klimageräte Ruckelshausen GmbH u. Co KG, 6102 Pfungstadt Austreiber fuer sorptionswaermepumpen
DE3201074A1 (de) * 1982-01-13 1983-07-21 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Kolonne fuer eine sorptionswaermepumpe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE549116C (de) * 1928-12-08 1932-04-23 Bruno Lehmann Austreiber fuer Absorptionsmaschinen
GB386811A (en) * 1931-02-25 1933-01-26 Electrolux Ltd Improvements in or relating to absorption refrigerating apparatus
GB548519A (en) * 1941-09-09 1942-10-13 Charles Alfred Payne Improvements relating to boilers of continuous absorption refrigerating machines
US3254507A (en) * 1965-05-12 1966-06-07 Whirlpool Co Generator for absorption refrigeration system
FR1471989A (fr) * 1966-03-24 1967-03-03 Carrier Corp Perfectionnements au système de réfrigération par absorption
US3407625A (en) * 1966-09-01 1968-10-29 Babcock & Wilcox Co Vapor generator
DE2913066A1 (de) * 1979-03-23 1980-10-02 Brocks Absorptions-waermepumpenanlage
DE3229321A1 (de) * 1982-08-05 1984-02-09 ASK Technische Entwicklungen GmbH + Co Betriebs-KG, 8580 Bayreuth Direkt-befeuerter austreiber fuer absorptionssysteme

Also Published As

Publication number Publication date
EP0133271A3 (en) 1985-09-11
DE3477509D1 (en) 1989-05-03
EP0133271A2 (fr) 1985-02-20

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