EP3240975B1 - Chaudière d'alimentation pour conduites d'eau de chauffage ou d'autres fluides thermiques dotée d'un échangeur de chaleur modulaire et d'un système de nettoyage - Google Patents

Chaudière d'alimentation pour conduites d'eau de chauffage ou d'autres fluides thermiques dotée d'un échangeur de chaleur modulaire et d'un système de nettoyage Download PDF

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Publication number
EP3240975B1
EP3240975B1 EP14830421.5A EP14830421A EP3240975B1 EP 3240975 B1 EP3240975 B1 EP 3240975B1 EP 14830421 A EP14830421 A EP 14830421A EP 3240975 B1 EP3240975 B1 EP 3240975B1
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EP
European Patent Office
Prior art keywords
heating water
thermal fluid
fluid lines
boiler
feeding
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.)
Not-in-force
Application number
EP14830421.5A
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German (de)
English (en)
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EP3240975A1 (fr
Inventor
Ferreira Braga Lino MANUEL AUGUSTO
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Felino-Fundicao De Const Mecanicas SA
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Felino-Fundicao De Const Mecanicas SA
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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
    • F24H1/0063—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using solid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/12—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel being fed to the combustion zone by free fall or by sliding along inclined surfaces, e.g. from a conveyor terminating above the fuel bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H15/00—Cleaning arrangements for grates; Moving fuel along grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
    • F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/06—Systems for accumulating residues from different parts of furnace plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • 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
    • 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
    • F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
    • 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
    • F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
    • 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
    • F24H9/0005—Details for water heaters
    • F24H9/0042—Cleaning arrangements
    • 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
    • F24H9/0084—Combustion air preheating
    • 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
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/02—Non-rotary, e.g. reciprocated, appliances having brushes
    • 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
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
    • 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
    • F24H2230/00—Solid fuel fired boiler
    • 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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1845—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel

Definitions

  • This application describes a heating boiler.
  • the present application describes a feeding boiler for heating water or other thermal fluid lines comprising a burner (1) having an own cleaning system; a combustion chamber (2); an heat exchanger (3) comprising a modular set where each module (31) is constituted by a hollow central body (32) with cooling fins and two caps (33) coupled at opposed faces of said heat exchanger (3), and a mechanical cleaning system (4) comprising of a group of cleaning modules (60) comprising a geometrical metallic structure (61) with an U shaped inverted geometry with upper axis (62) and lower axis (63), coupled to toothed sprockets (64) synchronized by gear chains (65), and a brush (67) that moves itself in synchrony with the gear chains (65) and makes said group of cleaning modules (60) to slide over the heat exchanger (3).
  • the cleaning system of burner (1) used in the feeding boiler for heating water or other thermal fluid lines comprises a scraper (17) whose lower surface is coincidental with the internal surface of the post-chamber (12), and an actuator (19).
  • the cleaning system of burner (1) used in the feeding boiler for heating water and other thermal fluid lines comprises an inflation antechamber (10), coupled to a centrifugal fan (11), and a post-chamber (12), and the internal volumes of the inflation antechamber (10) and the post-chamber (12) are connected through small circular orifices (15).
  • the actuator (19) used in the feeding boiler for heating water or other thermal fluid lines is placed outside the inflation chamber (10) and acts upon the scraper (17) by means of a shaft from the actuator system (18).
  • the feeding boiler for heating water or other thermal fluid lines comprises a feeding channel (13) connected to the post-chamber (12), and an electrical resistance (14) placed into one of the orifices connecting the internal volume of the inflation antechamber (10) and the one of the post-chamber (12), and having the feeding channel (13) some through holes (16).
  • the combustion chamber of the feeding boiler for heating water of other thermal fluid lines comprises a set of two hollow cylinders (21) and (22), whose free ends are connected by two identical caps (20) mounted in reverse, and the space between the hollow cylinders (21, 22) is filled with running water.
  • the ends of one of the caps (20) used in the feeding boiler for heating water or other thermal fluid have coupled to them a redirecting component (23) .
  • the caps (33) used in the feeding boiler for heating water or other thermal fluid lines seal together with the central body (32) and have two through holes, one at the upper end and other at the lower end of each cap (33), and a tubular interconnecting component (34) .
  • the tubular interconnecting component (34) used in the feeding boiler for heating water or other thermal fluid lines consists in a tube (35), with two external machined channels at opposite ends of the interconnecting component (34), and O-rings (36).
  • the feeding boiler for heating water or other thermal fluid lines comprises lower diverting boxes (41) and upper diverting boxes (51), respectively under and above the modules (31), each box (41, 51) diverting 180° the route of the gases.
  • the brush (67) used in the feeding boiler for heating water or other thermal fluid lines comprises a rigid elongate metallic central profile (68) with metallic fibers (69), which are braided along all the length and both sides of central profile (68).
  • the lower diverting boxes (41) used in the feeding boiler for heating water or other thermal fluid lines comprise a throttle type valve (42) acted by the toothed sprocket (44) coupled to the axis of rotation, and a central spinning shaft (43) that has sealing fins (45) .
  • the screw-worm (71) of the feeding boiler for heating water or other thermal fluid lines transfers the ashes to outside the combustion chamber (2)
  • the present invention describes a feeding boiler for heating water or other thermal fluid lines, comprising modular units of thermal transference, which can be jointly disposed by adding lateral modules of interconnection, thus forming the heat exchanger itself.
  • each module from the cleaning system allows for a cleaning of two modules external faces.
  • a soot or other combustion products accumulation would occur, in short / medium term, upon the external surfaces of the heat exchanger, what would increase the resistance to heat transfer and the loss of charge inside the route performed by the exhaust gases, whereby an overall thermal efficiency of the equipment where these module(s) would be installed would successively decrease.
  • the object of the technology now disclosed is thus to develop a modular heat exchanger allowing the satisfaction of several thermal capacities, and that could be used for heating any thermal fluid, including water.
  • the modular components can be built in an efficient manner, at a reduced cost, due to the fact that all of them have the same generic configuration.
  • the indexed cleaning system also presents as a characteristic its modularity. With inclusion of this cleaning system in the heat exchangers it is aimed to solve the problems associated with efficiency of thermal transfer, related to the accumulation of solid material resulting from burning fuel upon the heat exchangers walls. This way the thermal efficiency is maintained, as well as the reduction of maintenance operations frequency, and increases the useful lifetime of the heat exchangers.
  • this type of heating boiler is the adequate solution, once that the modules can be carried separately and assembled in situ.
  • the burner could be embedded into other industrial boilers burning biomass fuels to heat space and domestic hot water (DHW), industrial procedures needing heat, and boilers for services such as swimming-pools, service buildings, agricultural explorations and residential condominiums.
  • DHW heat space and domestic hot water
  • the present invention refers to a boiler of the type used for feeding heating lines for water or other thermal fluid, and is characterized in that it comprises a burner (1) which has an inflation antechamber (10), a post-chamber (12), and a cleaning system; a combustion chamber (2); an heat exchanger (3), and a mechanical cleaning system (4) comprising a group of cleaning modules (60) that slides over the exchanger (3).
  • the burner (1) has the function of promoting the combustion of combustible elements, e.g. pellets, and creating a flow of hot gases, whose temperatures range from 900 to 1400°C.
  • Said burner (1) comprises an inflation antechamber (10), to which is coupled a centrifugal fan (11) and a post-chamber (12), where the pellets are deposited and into which a flow of air from the centrifugal fan (11) is injected.
  • the internal volumes of the inflation antechamber (10) and of the post-chamber (12) are connected by means of small circular orifices (15), through which passes the air flow, injected in the inflation antechamber (10) by the centrifugal fan (11).
  • a feeding channel (13) directly connected to the post-chamber (12), allows for the feeding of fuel flow, particularly pellets.
  • An electrical resistance (14) installed in one of the orifices that connects the internal volumes of the inflation antechamber (10) and that of the post-chamber (12), allows for the beginning of pellets combustion by warming of injected air that is forced to contact with said electrical resistance (14). After the beginning of combustion, the electrical resistance (14) is turned off, maintaining it active indefinitely whilst the ratio between air flow and pellets remains inside an operation range.
  • the feeding channel (13) possesses through holes (16) that allow for the passing of some of the air injected in the inflation chamber (10), in other words, there is a reduced flow of air that is injected into the post-chamber (12) from the feeding channel (13), thus being avoided that the phenomenon of back-burning occurs, in other words, that the flame flows through the pellets entrance channel in direction to the pellets silo.
  • the burner (1) disposes also of a cleaning system comprising a scraper (17) whose lower surface is coincidental with the internal surface of the post-chamber (12), and an actuator (19) placed outside the inflation antechamber (10), which allows for the actuation of the scraper (17) by means of a shaft of the actuator system (18) .
  • the combustion chamber (2) that consists in a set of two hollow cylinders (21) and (22), whose free ends are connected together by two identical caps (20), and assembled in reverse.
  • the hollow cylinders (21, 22) have enough length for the developing of flame, the space between the hollow cylinders (21, 22) being filled in with running water in order to dissipate part of the heat, and so prevent the combustion chamber (2) to reach temperatures that would put in jeopardy its physical integrity.
  • a redirecting component (23) is connected in order to redirect the gases from the burner (1) to the heat exchanger (3). It is to point out that the redirecting component (23) does not possess heat dissipation.
  • the water flow that is injected into the combustion chamber (2) is afterwards transferred to the heat exchanger (3).
  • the gases are transferred to an input of the heat exchanger (3), which comprises a modular set, being each module (31) composed by a central finned and hollow body (32) and two caps (33) coupled at opposed faces of said heat exchanger (3).
  • This tubular interconnecting component (34) consists in a tube (35), with two external channels machined at opposed ends of the interconnecting component (34), for posterior location of O-rings (36), thus allowing for a sealed connection.
  • modules that on their external faces, not contacting with gases, do not possess any fins, being thus smooth, and so avoiding the occurrence of an heat transfer to the environment that would result in some losses.
  • lower diverter boxes (41) and upper diverter boxes (51) are placed, respectively under and over the modules (31), which have a simple parallelepiped geometry and comprise 5 sealed faces and one that has an opening through which the gas reaches and leaves the box, in a manner that allows also for the creation of a route for the runoff of gases, and for the maximization of the heat transfer to the water, whereas each box (41, 51) diverts the route of the gases for 180°, as illustrated at Figure 11 .
  • This behavior can be continuously seen at the last upper diverter box (51), placed mandatorily over the exchanger (3), to which an electrical extractor can be coupled.
  • a mechanical cleaning system (4) which comprises a vertically moving comb (60) that cleans the exchanger fins as it passes.
  • the cleaning system (4) comprises a set of cleaning modules (60) that slides over the exchanger (3), and where each cleaning module (60) allows for the cleaning of a pass of gases but, notwithstanding, after the installation of the necessary modules, these can be serially acted and by a single actuator.
  • the cleaning module (60) is constituted by a metallic structure (61) with an inverted U geometry, where each leg of the U possesses two axes at its most extreme points (62) and (63) where toothed sprockets (62) are coupled and synchronized through gear chains (65).
  • the upper shafts of both legs are synchronized using a common shaft (66), supported by a set of bearings (52) present at the upper diverter box (51).
  • a brush (67) which moves itself in synchrony with the chains (65).
  • the mechanism is acted by the common shaft (66) coupled to a motor (not shown), using a gear chain.
  • the motor rotation in one direction makes the brush (67) go down and the rotation in the inverse sense make it go up.
  • the brush (67) comprises a rigid central profile (68), elongated and metallic, with metallic fibers (69), which are braided in it all along its length and both sides of the central profile (68).
  • the vertical movement of the brush (67) removes the ashes deposited upon the external surfaces of the heat exchanger modules (3). These are the main surfaces for the heat transfer between the gases and the water.
  • the throttle type valve (42) is acted via toothed sprocket (44) coupled to the rotation axis and that possesses a central spinning shaft (43) having at a central zone sealing fins (45) in a number sufficient to create, when not spinning, a sealed volume upstream of said throttle type valve (42).
  • the mass of ashes removed by the throttle type valve (42) falls down over the outside of the combustion chamber (2), eventually circumventing it, for what the cleaning system (4) presents a V shaped deflector (70), and a screw-worm (71), under the combustion chamber (2).
  • the V shaped deflector (70) allows funneling all the ashes expelled from the lower diverter boxes (41) to its base, where the screw-worm (71) is placed. Once acted, the screw-worm (71) transfers the ashes to outside the combustion chamber (2).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Gas Burners (AREA)
  • Incineration Of Waste (AREA)

Claims (13)

  1. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique comprenant un brûleur (1) comprenant son propre système de nettoyage ;
    une chambre de combustion (2) ; un échangeur de chaleur (3) comprenant un ensemble modulaire où chaque module (31) comprend un corps central creux (32) et,
    deux couvercles (33) couplés sur des faces opposées dudit échangeur de chaleur (3); la chaudière d'alimentation comprenant également un système de nettoyage mécanique (4) composé d'un groupe de modules de nettoyage (60), chaque module de nettoyage comprenant une structure métallique (61) avec une géométrie en forme de U inversé avec un axe supérieur (62) et un axe inférieur (63) faisant glisser le groupe de modules de nettoyage (60) en question sur l'échangeur de chaleur (3),
    la chaudière d'alimentation étant caractérisée en ce que chaque corps creux comporte des ailettes, les axes supérieur (62) et inférieur (63) de la structure métallique (61) étant tous deux couplés à des pignons dentés (64) synchronisés par des courroies crantées (65), et le système de nettoyage du brûleur comprend un actionneur et un racleur dont la surface inférieure coïncide avec la surface interne de la post-chambre.
  2. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication précédente, dans laquelle le brûleur (1) comprend une antichambre de gonflage (10) couplée à un ventilateur centrifuge (11) et une post-chambre (12), et les volumes internes de l'antichambre de gonflage (10) et de la post-chambre (12) sont reliés par des orifices circulaires (15).
  3. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication précédente, dans laquelle l'actionneur (19) est placé à l'extérieur de la chambre de gonflage (10), et agit sur le racleur (17) au moyen d'un arbre de système d'actionnement (18) .
  4. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique, selon la revendication 2, comprenant un canal d'alimentation (13) connecté à la post-chambre (12), et une résistance électrique (14) placée à l'intérieur d'un des orifices reliant le volume interne de l'antichambre de gonflage (10) et la post-chambre (12), et le canal d'alimentation (13) possède des trous traversants (16) .
  5. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication 1, dans laquelle la chambre de combustion (2) comprend un ensemble de deux cylindres creux (21) et (22), dont les extrémités libres sont connectées entre elles au moyen de deux couvercles identiques (20) assemblés en sens inverse, et l'espace entre les cylindres creux (21, 22) est rempli d'eau courante.
  6. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication précédente, dans laquelle les extrémités de l'un des couvercles (20) ont couplé à elles un élément de réorientation (23).
  7. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication 1, dans laquelle les couvercles (33) sont joints avec le corps central (32), et possèdent deux trous traversants, l'un à l'extrémité supérieure et l'autre à l'extrémité inférieure de chaque couvercle (33), et un élément d'interconnexion tubulaire (34).
  8. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication précédente, dans laquelle l'élément d'interconnexion tubulaire (34) consiste en un tube (35), avec deux canaux externes usinés aux extrémités opposées de l'élément d'interconnexion (34) et des joints toriques (36).
  9. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication 1, comprenant des boîtes de dérivation inférieures (41) et des boîtes de dérivation supérieures (51), respectivement sous et sur les modules (31), et chacune des boîtes (41, 51) dévie l'itinéraire des gaz de 180°.
  10. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication 1, dans laquelle la brosse (67) est constituée d'un profil métallique allongé rigide (68) avec des fibres métalliques (69) tressées sur toute sa longueur, et sur les deux côtés du profil central (68).
  11. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication 9, dans laquelle les boîtes de dérivation inférieures (41) comprennent une vanne de type papillon (42) actionnée par des pignons dentés (44) couplés à l'axe de rotation, et un arbre central tournant (43) qui comporte des ailettes d'étanchéité (45).
  12. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication 9, dans laquelle le système de nettoyage (4) présente un déflecteur en forme de V (70), et une vis sans fin (71) sous la chambre de combustion (2), et le déflecteur en forme de V (70) canalise les cendres expulsées des boîtes de dérivation inférieures (41) vers sa base.
  13. Chaudière d'alimentation pour chauffer de l'eau ou autres lignes de fluide thermique selon la revendication précédente, dans laquelle la vis sans fin (71) transfère les cendres à l'extérieur de la chambre de combustion (2).
EP14830421.5A 2014-12-29 2014-12-29 Chaudière d'alimentation pour conduites d'eau de chauffage ou d'autres fluides thermiques dotée d'un échangeur de chaleur modulaire et d'un système de nettoyage Not-in-force EP3240975B1 (fr)

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PCT/PT2014/000080 WO2016108709A1 (fr) 2014-12-29 2014-12-29 Chaudière d'alimentation pour conduites d'eau de chauffage ou d'autres fluides thermiques dotée d'un échangeur de chaleur modulaire et d'un système de nettoyage

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CN109028045A (zh) * 2018-06-12 2018-12-18 中蓝长化工程科技有限公司 一种防高钠煤燃烧沾污循环流化床锅炉及防沾污处理方法
CN112902220A (zh) * 2020-12-22 2021-06-04 中国天辰工程有限公司 一种叉形管和水冷壁
KR102457992B1 (ko) * 2022-05-12 2022-10-24 (주) 런텍 운전중 전열튜브 스케일 제거가 가능한 열교환기
CN114811949B (zh) * 2022-05-25 2023-05-16 江西中聚宏新材料科技有限公司 一种高性能节能空气热泵装置
CN115752080B (zh) * 2022-12-07 2023-09-05 无锡翔龙环球科技股份有限公司 一种余热锅炉上换热管的自清洁机构

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