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EP0566945B1 - Installation pour réchauffer de l'eau, en particulier chaudière à eau - Google Patents

Installation pour réchauffer de l'eau, en particulier chaudière à eau Download PDF

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Publication number
EP0566945B1
EP0566945B1 EP93105917A EP93105917A EP0566945B1 EP 0566945 B1 EP0566945 B1 EP 0566945B1 EP 93105917 A EP93105917 A EP 93105917A EP 93105917 A EP93105917 A EP 93105917A EP 0566945 B1 EP0566945 B1 EP 0566945B1
Authority
EP
European Patent Office
Prior art keywords
double
wall
pipe
openings
combustion chamber
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 - Lifetime
Application number
EP93105917A
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German (de)
English (en)
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EP0566945A1 (fr
Inventor
Richard Vetter
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0566945A1 publication Critical patent/EP0566945A1/fr
Application granted granted Critical
Publication of EP0566945B1 publication Critical patent/EP0566945B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/28—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes

Definitions

  • the invention relates to a device for heating water, in particular hot water boilers, with heat exchangers surrounding the combustion chamber and arranged below the combustion chamber, parallel, horizontally superimposed plate-shaped heat exchangers which are offset from one another to form an S-shaped flue gas outlet and longitudinal channels for both edges which have water which are connected to one another via a plurality of transverse channels which run transversely to the flue gas stream.
  • the invention has for its object to eliminate these disadvantages and accordingly to achieve in devices of the type mentioned that the thermal load on the heat exchanger surrounding the combustion chamber is reduced and the elasticity of the system and its control options are improved.
  • combustion chamber is arranged within a double-walled tube, the outer wall of which is formed at the bottom by the uppermost plate-shaped heat exchanger, from which the water can be introduced into the wall of the double-walled tube via a large number of small openings, and above and is laterally formed by a U-shaped wall part.
  • the double-walled tube opens up the possibility of assigning a larger water volume to the combustion chamber in order to make the water temperature control simpler and more elastic.
  • no thin-walled plate-shaped heat exchangers which as a rule are less thermally loadable, are used, but rather water receiving rooms, the capacity of which depends on the wall thickness of the double-walled tube, which can be chosen to be comparatively large.
  • a cylindrical tube is preferably used for the combustion chamber (inner tube of the double-walled tube), while the outer tube is formed by a bow-shaped wall part which merges into the edges of the plate-shaped heat exchanger at the bottom.
  • the large number of small openings serving for the passage of water into the wall of the tube still have the great advantage that the wall of the tube or the water therein is whirled through. In addition, it is ensured that a uniform mixing of the water in the wall of the tube can occur.
  • the hot water boiler is located in a housing indicated by dashed lines 1; it has a combustion chamber 2 with a burner 3 operated by oil or gas.
  • the outer diameter of the combustion chamber 2 is determined by a cylindrical metal tube 4. This is enclosed at the top and sides at a distance from a U-shaped wall part 5, the edges of which are watertightly connected to the edges of a plate-shaped, horizontally arranged heat exchanger 6.
  • the metal tube 4 thus forms the inner wall and the wall part 5 with the heat exchanger 6 forms the outer wall of a double-walled tube which surrounds the combustion chamber 2.
  • the heat exchanger 6 is the heat exchanger located at the top of a package, which consists of several plate-shaped heat exchangers For example, three heat exchangers 6, 7 and 8 are formed, which are arranged horizontally one above the other and are also laid parallel to the longitudinal axis of the double-walled tube.
  • the heat exchangers 7-8 are also offset from one another according to FIG. 2 in order to achieve an S-shaped flue gas discharge in the direction of the arrows 9. The discharge of the flue gases is shown at 1o.
  • each heat exchanger 6-8 are formed by longitudinal channels 11 (parallel to the main axis of the double-walled tube), which are mutually connected via vertical guides 12 for the water.
  • the longitudinal channels 11 of each heat exchanger 6-8 are connected via a large number of small channels 13, which thus transport the heated water from one longitudinal channel 11 to the opposite longitudinal channel 11.
  • the water to be heated is fed from below to a longitudinal channel 11 of the heat exchanger 8 and then fed to the channels 13 of the heat exchanger 6 in an S-shaped course. These have symmetrical to the longitudinal center plane of the double-walled tube 4-6 in the walls of the channels 13 small holes with a diameter of about 4-6 mm, which are designated by 14.
  • the water heated in the heat exchangers 6-8 therefore flows through the bores 14 arranged in the individual channels 13 in the direction of the arrows 15 into the wall of the double-walled tube. Here it is exposed to the combustion chamber, is further heated and then finally reaches control devices or the consumer via outlet 16 at the top.
  • the small bores 14 ensure that intimate mixing of the supplied water with the water already in the wall occurs. There is a desirable swirling of the water supplied under pressure and of the water already accumulated in the wall.
  • the combustion chamber 2 is completely enclosed by a considerable amount of water; towards the outside, the water volume is enclosed by the wall part 5 and a heat exchanger 6. Since the water is under pressure, there is a reinforcement in the form of struts 17 which are distributed over the length of the combustion chamber 2 and which are at an angle and firmly connect the metal tube 4 to the side edge regions of the heat exchanger 6; in addition, a fixed connection between the metal pipe 4 and the heat exchanger 6 can be provided in the middle, e.g. by welding.
  • the comparatively large volume of water that surrounds the combustion chamber 2 has the advantage that changing temperatures can be better controlled by the consumer; the regulation e.g. bypass is considerably calmed. In addition, the thermal load on the heat exchanger is reduced.
  • strengthening spacers 19 can be provided between the two walls - parts 4, 5 - which are welded to the metal tube 4 and are firmly connected radially on the outside to strips 20 attached to the inside of the wall part 5.
  • the wall part 5 is provided with openings 21 in the area of the strips 20, the edges of which can be welded to the strip 20. The openings 21 thus allow access to the strips 20 from the outside (for establishing a firm connection). If the strips 20 are wide enough, the connections or welding points 22 can be offset from one another (FIG. 6).
  • the boiler according to FIG. 8 additionally has plate-shaped heat exchangers 23 and 24 on its front sides, of which the heat exchanger 24 located on the front front side has a recess 25 for the burner 3.
  • the heat exchangers 23, 24 also have an inlet indicated at 26, it being understood, however, that elements 8, 23 and 24 have only a single cold water inlet overall is provided, which splits into three ways.
  • This measure ensures that a water flow through the heat exchangers 23, 24 which is too fast cannot occur and that the measured amount of water heated in these heat exchangers can be supplied to the overall circuit.
  • the double-walled tube 4, 5 is also shorter at the bottom than at the top; So that the combustion gases can flow favorably into the space between the two heat exchangers 7, 7 located at the top, the double-walled tube 4, 5 is provided at its rear end with an approximately triangular recess 29 (viewed in the side view).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Details Of Fluid Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (18)

  1. Dispositif pour chauffer de l'eau, notamment chaudière à eau chaude, ayant des échangeurs de chaleur entourant la chambre (2) de combustion et des échangeurs de chaleur (6, 7, 8) en forme de plaque, parallèles les uns aux autres, superposés horizontalement, disposés en-dessous de la chambre de combustion, décalés les uns par rapport aux autres de manière à former une évacuation en forme de S de gaz de combustion et comportant sur les deux bords des canaux (11) longitudinaux pour l'eau qui communiquent entre eux par une multiplicités de canaux (13) transversaux qui s'étendent transversalement au courant de gaz de combustion, caractérisé par le fait que la chambre (2) de combustion est disposée dans un tube à double paroi dont la paroi extérieure est formée en-dessous par l'échangeur de chaleur en forme de plaque le plus haut et duquel l'eau peut être amenée dans la paroi du tube à double paroi par une multiplicité de petits passages (14), et au-dessus et latéralement par une pièce (5) de paroi en U.
  2. Dispositif suivant la revendication 1, caractérisé par le fait que les passages (14) ont un diamètre d'environ 4 à 6 mm.
  3. Dispositif suivant la revendication 1, caractérisé par le fait que les passages (14) sont ménagés en rangées dans les canaux (13) transversaux de l'échangeur de chaleur (6) qui s'étendent parallèlement à l'axe médian longitudinal du tube (4, 5) à double paroi.
  4. Dispositif suivant la revendication 3, caractérisé par le fait que les rangées de passages sont disposées symétriquement par rapport au plan médian longitudinal du tube à double paroi.
  5. Dispositif suivant les revendications 1 à 4, caractérisé par le fait que les passages sont ménagés en une rangée de chaque côté du plan.
  6. Dispositif suivant la revendication 1, caractérisé par le fait que la paroi (4) intérieure du tube à double paroi délimite la chambre (2) de combustion vers I'extérieur et que les branches orientées vers le bas de la paroi du tube placée à l'extérieur sont reliées aux bords de l'échangeur de chaleur (6) en forme de plaque le plus haut.
  7. Dispositif suivant la revendication 6, caractérisé par le fait que la paroi (4) intérieure est un corps tubulaire cylindrique.
  8. Dispositif suivant la revendication 6, caractérisé par le fait que la paroi (4) est reliée, à l'extérieur, par des étais (17), aux zones des bords de l'échangeur de chaleur (6).
  9. Dispositif suivant la revendication 8, caractérisé par le fait que les étais (17) sont dirigés, à l'extérieur, en biais vers le bas.
  10. Dispositif suivant la revendication 6, caractérisé par le fait que l'échangeur de chaleur (6) est relié, au milieu, directement à la paroi (4) intérieure.
  11. Dispositif suivant la revendication 1, caractérisé par le fait que sont prévues, entre les deux parois (4, 5), des entretoises (19) qui donnent de la solidité et qui sont reliées sur leurs extrémités extérieures à des bandes (20) s'appliquant, à l'intérieur, à la paroi (5) et par le fait que la paroi extérieure est munie dans la zone des bandes de passages (21) dont les bords sont reliés rigidement aux bandes.
  12. Dispositif suivant la revendication 11, caractérisé par le fait que des passages (21) voisins et leurs cordons (22) de soudure sont décalés les uns par rapport aux autres.
  13. Dispositif suivant la revendication 11, caractérisé par le fait que les entretoises (19) ont une section transversale, rectangulaire, plate et qu'elles s'étendent sensiblement sur la largeur des bandes (20).
  14. Dispositif suivant la revendication 11, caractérisé par le fait que les bandes (20) s'étendent parallèlement à l'axe médian longitudinal du tube (4, 5) à double paroi.
  15. Dispositif suivant la revendication 1, caractérisé par le fait que sont prévus, sur les faces frontales du dispositif, s'étendant au moins sensiblement sur la hauteur du dispositif, des échangeurs de chaleur (23, 24) à peu près verticaux dont la sortie (27) d'eau placée en haut amène à l'intérieur du tube (4, 5) à double paroi.
  16. Dispositif suivant la revendication 15, caractérisé par le fait que de l'eau chauffée dans les échangeurs (23, 24) de chaleur peut être amenée aux zones d'extrémité du tube (4, 5) à double paroi dont la sortie (16) d'eau chaude se trouve à peu prés à mi-longueur du tube (4, 5) à double paroi.
  17. Dispositif suivant la revendication 1, caractérisé par le fait que le tube (4, 5) à double paroi est évidé à l'extrémité arrière de manière que le tube soit plus court en bas que en haut.
  18. Dispositif suivant la revendication 17, caractérisé par le fait que l'évidement (29) est sensiblement triangulaire.
EP93105917A 1992-04-18 1993-04-13 Installation pour réchauffer de l'eau, en particulier chaudière à eau Expired - Lifetime EP0566945B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4212993 1992-04-18
DE4212993 1992-04-18
DE4239494A DE4239494A1 (de) 1992-04-18 1992-11-25 Vorrichtung zum Erwärmen von Wasser, insbes. Warmwasserheizkessel
DE4239494 1992-11-25

Publications (2)

Publication Number Publication Date
EP0566945A1 EP0566945A1 (fr) 1993-10-27
EP0566945B1 true EP0566945B1 (fr) 1995-06-28

Family

ID=25914075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93105917A Expired - Lifetime EP0566945B1 (fr) 1992-04-18 1993-04-13 Installation pour réchauffer de l'eau, en particulier chaudière à eau

Country Status (9)

Country Link
EP (1) EP0566945B1 (fr)
AT (1) ATE124529T1 (fr)
CZ (1) CZ59093A3 (fr)
DE (2) DE4239494A1 (fr)
DK (1) DK0566945T3 (fr)
ES (1) ES2076813T3 (fr)
HU (1) HUT65159A (fr)
PL (1) PL172025B1 (fr)
SK (1) SK31593A3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL225244B1 (pl) 2014-07-02 2017-03-31 Aic Spółka Akcyjna Komora spalania dla opalanego gazem wymiennika ciepła

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721435C2 (de) * 1977-05-12 1979-08-16 Hans 3559 Battenberg Viessmann Brennkammer für einen Heizkessel
DE3344604A1 (de) * 1983-12-09 1985-06-20 Hans Dr.h.c. 3559 Battenberg Vießmann Heizungskessel
DE3701361A1 (de) * 1987-01-19 1988-07-28 Richard Vetter Vorrichtung zum erwaermen von wasser, insb. warmwasserheizkessel

Also Published As

Publication number Publication date
HUT65159A (en) 1994-04-28
ATE124529T1 (de) 1995-07-15
SK31593A3 (en) 1993-11-10
HU9301125D0 (en) 1993-08-30
PL172025B1 (pl) 1997-07-31
DE4239494A1 (de) 1993-10-21
ES2076813T3 (es) 1995-11-01
DK0566945T3 (da) 1995-12-04
CZ59093A3 (en) 1993-11-17
PL298568A1 (en) 1993-11-02
DE59300301D1 (de) 1995-08-03
EP0566945A1 (fr) 1993-10-27

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