FR2716957A3 - Room- and washing-water heater with burner - Google Patents

Room- and washing-water heater with burner Download PDF

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Publication number
FR2716957A3
FR2716957A3 FR9501626A FR9501626A FR2716957A3 FR 2716957 A3 FR2716957 A3 FR 2716957A3 FR 9501626 A FR9501626 A FR 9501626A FR 9501626 A FR9501626 A FR 9501626A FR 2716957 A3 FR2716957 A3 FR 2716957A3
Authority
FR
France
Prior art keywords
heat exchanger
segment
heat
tube
helical winding
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.)
Granted
Application number
FR9501626A
Other languages
French (fr)
Other versions
FR2716957B3 (en
Inventor
Schwarz Hans-Jochen
Danner Klaus
Zimmermann Hans-Werner
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 DE4407371A external-priority patent/DE4407371A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2716957A3 publication Critical patent/FR2716957A3/en
Application granted granted Critical
Publication of FR2716957B3 publication Critical patent/FR2716957B3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1016—Tanks having a bladder
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • 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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • 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
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • 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
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • 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
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/146—Connecting elements of a heat exchanger
    • 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
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The heater comprises connecting, regulating and heating units (12,14,16) formed as individually replaceable assemblies, with plug-in connectors (24). A burner works with a heat-exchanger, and an inner piping system. Air feed and discharge systems and regulators are provided for heat output and/or temperature. The Different outputs are obtainable within the same floor surface area (26). The connecting unit can have unions for gas, and cold and hot water. It also has a socket for an electric supply, and mountings for further units. All unions apart from those for the gas, can be of the plug-in type. The mountings can have holder for the additional units, also ones fixing it to a wall.

Description

Echangeur de chaleur de forme hélicoidale dont les enrou
lements intérieur et extérieur sont en tube lisse et en
tube nervuré .Helical-shaped heat exchanger including coils
interior and exterior elements are in smooth tube and
ribbed tube.

Etat de la technique.State of the art.

La présente invention concerne un échangeur de chaleur, de forme hélicoïdale, comprenant au moins un premier et un second segment, notamment avec un enroulement hélicoïdal intérieur et un enroulement hélicoïdal extérieur, chaque segment ou chaque enroulement hélicoïdal ayant un ajutage et ces ajutages débouchent du même côté de l'échangeur de chaleur. The present invention relates to a heat exchanger, of helical shape, comprising at least a first and a second segment, in particular with an internal helical winding and an external helical winding, each segment or each helical winding having a nozzle and these nozzles open out in the same way side of the heat exchanger.

Un échangeur de chaleur connu, de ce type (EP220 190) comporte un tube enroulé en hélice, l'intérieur de la partie en hélice formant une chambre de combustion. Les différentes spires du tube sont étroitement rapprochées et constituent une hélice intérieure à laquelle fait suite une seconde hélice ou hélice extérieure. Les gaz de combustion sont guidés entre les enroulements hélicoidaux.  A known heat exchanger of this type (EP220,190) comprises a helically wound tube, the inside of the helical part forming a combustion chamber. The different turns of the tube are closely spaced and constitute an inner propeller which is followed by a second propeller or outer propeller. The combustion gases are guided between the helical windings.

La présente invention concerne un échangeur de chaleur correspondant au type défini ci-dessus, caractérisé par un segment qui reçoit principalement de la chaleur de rayonnement, ce segment étant un tube lisse et un segment formé d'un tube à nervures et qui reçoit de préférence la chaleur des gaz chauds de combustion. The present invention relates to a heat exchanger corresponding to the type defined above, characterized by a segment which mainly receives radiation heat, this segment being a smooth tube and a segment formed of a ribbed tube and which preferably receives the heat of the hot combustion gases.

L'échangeur de chaleur selon l'invention offre l'avantage de réaliser plusieurs niveaux d'échange qui par ticipent suivant des fractions différentes à l'échange thermique. Un échangeur de chaleur à plusieurs étages, dont le premier étage est formé d'un tube lisse et de spires à pas étroit pour recevoir la chaleur de rayonnement et dont le second étage est formé d'un tube nervuré pour recevoir la chaleur véhiculée par les gaz de combustion, permet d'obtenir un rendement élevé dans un volume extrêmement faible. Le premier étage sert ainsi non seulement à recueillir la chaleur de rayonnement mais il canalise également les gaz de combustion. Le second étage exposé au gaz de combustion chaud présente des nervures pour augmenter la surface d'échange. Ces nervures peuvent être simplement obtenues par enroulement ou être des éléments soudés. The heat exchanger according to the invention offers the advantage of achieving several levels of exchange which participate in different fractions in the heat exchange. A multistage heat exchanger, the first stage of which is formed by a smooth tube and narrow-pitch turns to receive the radiant heat and the second stage of which is formed by a ribbed tube to receive the heat conveyed by the combustion gas, provides high efficiency in an extremely small volume. The first stage thus not only serves to collect the radiant heat but it also channels the combustion gases. The second stage exposed to the hot combustion gas has ribs to increase the exchange surface. These ribs can be simply obtained by winding or be welded elements.

Suivant une autre caractéristique avantageuse de l'invention, il est prévu un troisième segment pour l'échangeur de chaleur pour y refroidir les gaz d'échappement en dessous du point de rosée pour utiliser la chaleur de condensation dégagée. Ce segment est de préférence un tube résistant à la corrosion. Pour éviter des coins ou des arêtes exposés à la corrosion on utilise de préférence pour le troisième segment un tube lisse. According to another advantageous characteristic of the invention, a third segment is provided for the heat exchanger to cool the exhaust gases there below the dew point to use the heat of condensation released. This segment is preferably a corrosion-resistant tube. To avoid corners or edges exposed to corrosion, a smooth tube is preferably used for the third segment.

Un échangeur de chaleur réalisé en une seule pièce est particulièrement avantageux sur le plan du coût. A heat exchanger made in one piece is particularly advantageous in terms of cost.

Cela est très simple si l'on choisit un tube lisse muni de nervures au moins par zones.This is very simple if one chooses a smooth tube provided with ribs at least by zones.

Dessins.Drawings.

Un exemple de réalisation de l'échangeur de chaleur est représenté aux dessins et sera décrit ci-après de manière plus détaillée. An exemplary embodiment of the heat exchanger is shown in the drawings and will be described below in more detail.

Ainsi - la figure 1 montre schématiquement un échangeur de cha
leur vu en perspective, - la figure 2 est une vue en coupe d'un échangeur de cha
leur intégré à un appareil de chauffage.Thus - Figure 1 schematically shows a heat exchanger
their perspective view, - Figure 2 is a sectional view of a heat exchanger
their integrated into a heater.

Description. Description.

La figure 1 montre un échangeur de chaleur 10 comprenant un premier enroulement hélicoïdal intérieur 12 et un enroulement hélicoïdal extérieur 14. A l'intérieur du premier enroulement hélicoïdal 12 se trouve une chambre de combustion 16. L'enroulement hélicoïdal intérieur 12 comporte un ajutage 12 et l'enroulement hélicoïdal extérieur 14 un ajutage 20. FIG. 1 shows a heat exchanger 10 comprising a first internal helical winding 12 and an external helical winding 14. Inside the first helical winding 12 is a combustion chamber 16. The internal helical winding 12 has a nozzle 12 and the external helical winding 14 a nozzle 20.

Les ajutages 18 et 20 dans l'exemple de réalisation sont recourbés à 900 vers le bas pour leur permettre d'être emmanchés dans un moyen de réception prévu à cet effet dans l'appareil de chauffage. Comme le montre la figure 2, les ajutages 18, 20 comportant des collerettes annulaires 22 entre lesquelles se place un moyen d'étanchéité. The nozzles 18 and 20 in the exemplary embodiment are bent 900 downward to allow them to be fitted into a receiving means provided for this purpose in the heater. As shown in Figure 2, the nozzles 18, 20 having annular flanges 22 between which is placed a sealing means.

L'enroulement hélicoïdal intérieur 12 est formé d'un tube lisse 24 qui est enroulé à spires étroites et forme un volume analogue à une chambre de combustion autour du brûleur 16. Le rayonnement calorifique dégagé par le brûleur 16 rencontre dans cette zone l'échangeur de chaleur 10 qui absorbe ce rayonnement. Cela permet, indépendamment du type de brûleur et de son dimensionnement, d'échanger entre 30 % et 70 W de la puissance de combustion comme énergie thermique au fluide de chauffage. The internal helical winding 12 is formed of a smooth tube 24 which is wound in narrow turns and forms a volume similar to a combustion chamber around the burner 16. The heat radiation released by the burner 16 meets in this zone the exchanger heat 10 which absorbs this radiation. This allows, independently of the type of burner and its size, to exchange between 30% and 70 W of the combustion power as thermal energy to the heating fluid.

Les gaz de combustion chauds partant du brûleur 16 circulent le long de l'enroulement hélicoïdal intérieur 12 et arrivent jusque sur l'enroulement hélicoïdal extérieur 14. Cet enroulement possède des nervures 26 sur au moins un certain segment ; ces nervures sont simplement indiquées aux figures 1 et 2. Les nervures 26 permettent l'échange d'une partie importante de l'énergie calorifique contenue dans les gaz de combustion chauds vers le fluide de chauffage. L'enroulement hélicoïdal extérieur 14 comporte, en aval de cette zone, un segment formé d'un tube lisse 28 dans lequel on refroidit les gaz de combustion jusqu'en dessous du point de rosée et on transmet la chaleur de condensation au fluide de chauffage.  The hot combustion gases leaving the burner 16 circulate along the internal helical winding 12 and arrive as far as the external helical winding 14. This winding has ribs 26 on at least a certain segment; these ribs are simply indicated in FIGS. 1 and 2. The ribs 26 allow the exchange of a large part of the heat energy contained in the hot combustion gases towards the heating fluid. The outer helical winding 14 comprises, downstream of this zone, a segment formed by a smooth tube 28 in which the combustion gases are cooled to below the dew point and the heat of condensation is transmitted to the heating fluid .

L'ensemble de l'échangeur de chaleur 10 est obtenu en enroulant un tube qui à l'état développé présente des nervures dans une zone intermédiaire. Ces nervures peuvent être enroulées, par exemple dans le cas d'un échangeur de chaleur en aluminium ou en cuivre, ou encore être soudées dans le cas d'un échangeur de chaleur en acier inoxydable. L'échangeur de chaleur 10 peut être enroulé et calibré en une seule opération à partir du tube étiré
Il est également possible de réaliser l'échangeur de chaleur 10 sans segment de condensation, avec un tube 28 lisse. The entire heat exchanger 10 is obtained by winding a tube which in the developed state has ribs in an intermediate zone. These ribs can be wound, for example in the case of an aluminum or copper heat exchanger, or even be welded in the case of a stainless steel heat exchanger. The heat exchanger 10 can be wound and calibrated in a single operation from the stretched tube
It is also possible to produce the heat exchanger 10 without condensation segment, with a smooth tube 28.

Claims (5)

REVENDICATIONS 10) Echangeur de chaleur, de forme hélicoidale, comprenant au moins un premier et un second segment, notamment avec un enroulement hélicoïdal intérieur et un enroulement hélicoïdal extérieur, chaque segment ou chaque enroulement hélicoïdal ayant un ajutage et ces ajutages débouchent du même côté de l'échangeur de chaleur, caractérisé par un segment (12) qui reçoit principalement de la chaleur de rayonnement, ce segment étant un tube lisse (24) et un segment (14) formé d'un tube à nervures (26) et qui reçoit de préférence la chaleur des gaz chauds de combustion. 10) Heat exchanger, helical in shape, comprising at least a first and a second segment, in particular with an internal helical winding and an external helical winding, each segment or each helical winding having a nozzle and these nozzles open on the same side of the heat exchanger, characterized by a segment (12) which receives mainly radiation heat, this segment being a smooth tube (24) and a segment (14) formed of a ribbed tube (26) and which receives from preferably the heat of hot combustion gases. 2") Echangeur de chaleur selon la revendication 1, caractérisé par un troisième segment formé d'un tube (28) résistant à la corrosion et recevant la chaleur de condensation. 2 ") Heat exchanger according to claim 1, characterized by a third segment formed by a tube (28) resistant to corrosion and receiving the heat of condensation. 30) Echangeur de chaleur selon la revendication 2, caractérisé en ce que le troisième segment est un tube lisse (28). 30) Heat exchanger according to claim 2, characterized in that the third segment is a smooth tube (28). 40) Echangeur de chaleur selon l'une des revendications précédentes, caractérisé par une construction en une seule pièce. 40) Heat exchanger according to one of the preceding claims, characterized by a construction in one piece. 50) Echangeur de chaleur selon l'une des revendications précédentes, caractérisé par un tube lisse (24, 28) sur lequel on a rapporté des nervures (26) au moins par zones. 50) Heat exchanger according to one of the preceding claims, characterized by a smooth tube (24, 28) on which ribs (26) have been added at least by zones. 60) Echangeur de chaleur selon l'une des revendications précédentes, caractérisé en ce que les ajutages (18, 20) comportant des collerettes annulaires (22) pour recevoir des moyens d'étanchéité.  60) Heat exchanger according to one of the preceding claims, characterized in that the nozzles (18, 20) comprising annular flanges (22) for receiving sealing means.
FR9501626A 1994-03-05 1995-02-13 Helical heat exchanger whose internal and external windings are in smooth tube and in ribbed tube. Expired - Lifetime FR2716957B3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4407371A DE4407371A1 (en) 1994-03-05 1994-03-05 Heater for space heating and domestic water heating
DE9415501U DE9415501U1 (en) 1994-03-05 1994-09-24 Helical heat exchanger

Publications (2)

Publication Number Publication Date
FR2716957A3 true FR2716957A3 (en) 1995-09-08
FR2716957B3 FR2716957B3 (en) 1996-01-05

Family

ID=25934406

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9501626A Expired - Lifetime FR2716957B3 (en) 1994-03-05 1995-02-13 Helical heat exchanger whose internal and external windings are in smooth tube and in ribbed tube.

Country Status (3)

Country Link
ES (1) ES1030341Y (en)
FR (1) FR2716957B3 (en)
IT (1) IT236700Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITAN20120125A1 (en) * 2012-10-03 2014-04-04 Ariston Thermo Spa EXPANSION TANK FOR THERMOSANITARY APPLIANCES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITAN20120125A1 (en) * 2012-10-03 2014-04-04 Ariston Thermo Spa EXPANSION TANK FOR THERMOSANITARY APPLIANCES

Also Published As

Publication number Publication date
ES1030341Y (en) 1996-02-01
ITMI950139U1 (en) 1996-09-02
FR2716957B3 (en) 1996-01-05
ITMI950139V0 (en) 1995-03-02
IT236700Y1 (en) 2000-08-17
ES1030341U (en) 1995-08-01

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