EP0168024A2 - Chaudière à combustible liquide ou gazeux et fonctionnant en particulier dans le domaine des grandes capacités - Google Patents

Chaudière à combustible liquide ou gazeux et fonctionnant en particulier dans le domaine des grandes capacités Download PDF

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Publication number
EP0168024A2
EP0168024A2 EP85108480A EP85108480A EP0168024A2 EP 0168024 A2 EP0168024 A2 EP 0168024A2 EP 85108480 A EP85108480 A EP 85108480A EP 85108480 A EP85108480 A EP 85108480A EP 0168024 A2 EP0168024 A2 EP 0168024A2
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EP
European Patent Office
Prior art keywords
boiler according
combustion chamber
burner
secondary heating
heating surface
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.)
Withdrawn
Application number
EP85108480A
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German (de)
English (en)
Other versions
EP0168024A3 (fr
Inventor
Hans Dr. Viessmann
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0168024A2 publication Critical patent/EP0168024A2/fr
Publication of EP0168024A3 publication Critical patent/EP0168024A3/fr
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    • 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
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels
    • 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
    • F24H1/287—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 with the fire tubes arranged in line with the combustion chamber

Definitions

  • the invention relates to a heating boiler for liquid or gaseous fuels and in particular for higher power ranges according to the preamble of the main claim.
  • Boilers of the type mentioned are generally known. These known heating boilers for power ranges for over approx. 200 KW are those in which, via a reversing combustion chamber, a large number of relatively small-diameter heating gas draw pipes lead from a front overflow chamber to a flue gas collecting chamber, the reversing combustion chamber with its opening in the lower part of the Overflow chamber opens out.
  • the reversal combustion chamber has a much greater length with respect to its diameter and the length of the secondary heating surface tubes arranged in the bundle is also greater than the length of the combustion chamber.
  • the invention is therefore based on the object to improve a boiler of the type mentioned in such a way that the manufacturing and construction costs can be reduced with a reasonable overall length of the boiler and despite a reduced number of Nachschaltsammlung vomrohre a sufficiently large total heat transfer area can be realized.
  • Bobous combustion chamber is understood to mean that the length of the combustion chamber is not essential is greater than its diameter, that is, the length is, for example, a maximum of 1/3 to 1/4 larger than the diameter of the combustion chamber. In current boilers of the type mentioned, for example, the length of the combustion chamber is at least half greater than its diameter .
  • the Nachschaltsammlung vomtule are also kept much larger in terms of their diameter, so that even fewer pipes can be connected to the bottom of the combustion chamber by this measure, but this is aimed anyway in order to reduce the welding effort for the pipes. Since the length of the pipes should correspond at most to the length of the combustion chamber, this requirement is of course associated with a certain loss of heat transfer area, but this is compensated for by the fact that the heat transfer conditions in this area are intensified, but this is due to the larger diameter Pipes is easily possible by equipping the secondary heating surface tubes with longitudinal ribs that extend radially inward as viewed in cross section. Such a rib trim for the purpose of enlarging the heat transfer area is of course generally known, but in the present context it has the task of compensating for the loss of the necessary heat transfer area.
  • the diameter dimensioning that the diameter of the tubes must correspond to at least twice the height of the ribs.
  • this is preferably provided larger, namely with regard to the thickness of the cast ring wall and a free space to be provided advantageously between the free ends of the ribs, in order to be able to insert a filler in it, which ensures that only the longitudinal channels delimited by the longitudinal ribs in the Post-heating surface tubes are flowed through.
  • a burner burning with a bushy flame is preferably provided, a flow guide body, which may also be arranged in the combustion chamber, which can otherwise remain without internals, such as a combustion chamber pot or the like inflowing heating gases and the end of the flame are better distributed over the bottom surface of the combustion chamber or the inflow openings of the secondary heating surface tubes and also ensure better combustion of the flame.
  • the "thick-bellied" combustion chamber is better with it the flame and the heating gases are filled, and the water-cooled combustion chamber walls are better treated.
  • the "thick-bellied" combustion chamber 1 essentially only occupies a little more than half the length of the entire boiler housing 15.
  • the Nachschaltsammlungvidrohre 2 extend from the insert opening 3 of the burner 4 bottom 5, evenly distributed over its surface to the flue gas collection chamber 6 and are filled with longitudinal ribs 7 inside.
  • the diameter of the Nachschaltsammlungvidrohre 2 is dimensioned so that it is at least the corresponds to twice the height of the longitudinal ribs 7 arranged in the secondary heating surface tubes 2.
  • the Nachschaltsammlungdon Vietnamese Schuvice 2 are kept a little shorter than the combustion chamber 1 in the case shown, but can correspond to the maximum length of the combustion chamber 1.
  • the longitudinal ribs 7 are advantageously designed as radially inwardly directed parts of cast rings 8 arranged in the tubes 2.
  • These cast rings with the ribs have, for example, a width of 50 mm and there are, for example, 15 pieces in each secondary heating surface tube 2. arranged tightly pressed together, ie in this case this leads to a length of the secondary heating surface tubes of 750 mm.
  • this requirement are possible depending on the design requirements of the total secondary heating surface.
  • the diameter of the secondary heating surface tubes is about 13 to 20 cm, depending on the diameter of the packing, which means that these secondary heating surface tubes are much larger in diameter than the tubes previously provided for such boilers, which for this reason also do not have internal ribbing could be seen what was just compensated for by a correspondingly large number of such pipes and at the same time accepted the additional work involved in welding.
  • the fillers 9 to be inserted into the free space of the secondary heating surface tubes 2 advantageously become high at least at their upstream end 9 ' refractory ceramic fiber material and extend, as shown, hemispherical something from the Z uströmö réelleen 11 of the tubes 2 out to ensure favorable inflow conditions in the Nachschaltsammlung vomrohre. 2
  • a mushroom-like design in the sense of FIG. 3 is also possible, the heads of the fillers 9 blocking off the inflow openings with their peripheral edge region 9 ", ie the outer diameter of the peripheral edge region 9" corresponds at least to the diameter of the secondary heating surface tubes 2 and the peripheral edge region is at a distance with training an annular inflow gap 13 arranged in front of the inflow openings 11.
  • the burner-side end wall 10 of the combustion chamber 1 is designed as a water-bearing wall, which merges into the water-carrying interior 14 of the housing 15 and contains the insertion opening 3 of the burner. For this purpose, so-called. Bobbin flooring in question.
  • a flow guide body 12 can be arranged in the center, in order, as mentioned, to ensure favorable flow guidance and good filling of the combustion chamber 1 with fuel gases, it would also be accessible from the burner side it is also entirely possible to design the end wall 10 in the form of a combustion chamber door 10 'according to FIG. 4, na of course, a water-carrying connection of the door to the interior 14 of the housing 15 would have to be provided.
  • This equipment of the boiler housing 15 with a combustion chamber closure door 10 'in the sense of FIG. 4 would also be considered in particular if the heads of the filler bodies 9 were mushroom-shaped in the sense of FIG. 3, since then the filler bodies would not be readily accessible from behind Nachschaltsammlung vom tubes 2 could be pulled out. If the insert opening 3 for the burner 4 is sufficiently large and the mushroom-like heads of the filling bodies 9 could only be plugged onto them, it would also be readily possible to attach these mushroom heads from the insertion opening 3 onto the filling bodies 9 or, if so the mushroom heads with the filler each form a part from the combustion chamber.
  • the flue gas collecting chamber 6 is arranged detachably on the rear side of the housing 15, in particular in the case of a burner-side end wall 10 which is firmly connected to the housing 15.
  • the flue gas collecting chamber 6 is advantageously formed from a box which can be connected in a gastight manner to a chamber bottom 6 'on the housing side, the chamber bottom 6' being thermally conductive with the outflow side via the Housing rear wall 16 projecting ends 17 of the Nachschaltsammlung vomrohre 2 is connected. This also counteracts the formation of condensate in this area.
  • the secondary heating surface tubes 2 represent, as it were, a plurality of small boilers, as are used today for small output ranges in connection with a pot-type reversing combustion chamber, but with the difference that the combustion chamber is replaced by the packing 9.
  • the boiler described is particularly suitable and intended for an operation in the so-called low temperature range.

Landscapes

  • 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)
  • Combustion Of Fluid Fuel (AREA)
EP85108480A 1984-07-12 1985-07-09 Chaudière à combustible liquide ou gazeux et fonctionnant en particulier dans le domaine des grandes capacités Withdrawn EP0168024A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843425668 DE3425668A1 (de) 1984-07-12 1984-07-12 Heizungskessel fuer fluessige oder gasfoermige brennstoffe und fuer insbesondere hoehere leistungsbereiche
DE3425668 1984-07-12

Publications (2)

Publication Number Publication Date
EP0168024A2 true EP0168024A2 (fr) 1986-01-15
EP0168024A3 EP0168024A3 (fr) 1986-07-23

Family

ID=6240458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108480A Withdrawn EP0168024A3 (fr) 1984-07-12 1985-07-09 Chaudière à combustible liquide ou gazeux et fonctionnant en particulier dans le domaine des grandes capacités

Country Status (2)

Country Link
EP (1) EP0168024A3 (fr)
DE (1) DE3425668A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333972A1 (fr) * 1988-03-25 1989-09-27 Hans Dr. Viessmann Tube de fumées
FR2706592A1 (fr) * 1993-06-11 1994-12-23 Ctd Technologie Chaudière à foyer apte à réduire la teneur en composés polluants des produits de combustion.
CN119436087A (zh) * 2024-12-25 2025-02-14 山东五联能源装备科技有限公司 一种蒸汽锅炉装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9103302U1 (de) * 1991-03-18 1992-07-23 Vießmann, Hans, Dr., 3559 Battenberg Dreizugheizkessel

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014918A (en) * 1933-12-26 1935-09-17 Walter W Williams Heater
DE1102331B (de) * 1954-11-08 1961-03-16 Werner Gut Einrichtung in OElfeuerungskesseln zum Schutz der hinteren Feuerraum-Kesselwand
DE1716066U (de) * 1955-11-30 1956-02-02 Handelskontor Heider G M B H Heizkessel.
GB845318A (en) * 1957-08-27 1960-08-17 Gas Council Improvements in or relating to water heaters
FR1409949A (fr) * 1964-07-31 1965-09-03 Svenska Maskinverken Ab Chaudière à vapeur et eau chaude
DE1579881B2 (de) * 1966-12-05 1975-10-02 Guenter Prof. Dipl.-Ing. 8676 Schwarzenbach Fuchs Heizungskessel mit inneren Längsrippen
US3392711A (en) * 1966-12-09 1968-07-16 John J. Wolfersperger Fire tube boiler or water heater
AT282882B (de) * 1968-09-06 1970-07-10 Erhard Wieger Rohrförmiger Wärmeaustauscher, insbesondere für Warmwasser-Zentralheizungskessel
FR2273239A1 (en) * 1974-05-31 1975-12-26 Fonderie Soc Gen De Central heating system boiler - has cast heat exchanger removably bolted on hearth
DE2927363C3 (de) * 1979-07-06 1981-12-10 Vießmann, Hans, 3559 Battenberg Wasserspeichererhitzer
FR2472725A1 (fr) * 1979-12-27 1981-07-03 Barrault Rene Louis Chaudiere a lame d'eau et a tubes de fumees

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333972A1 (fr) * 1988-03-25 1989-09-27 Hans Dr. Viessmann Tube de fumées
FR2706592A1 (fr) * 1993-06-11 1994-12-23 Ctd Technologie Chaudière à foyer apte à réduire la teneur en composés polluants des produits de combustion.
CN119436087A (zh) * 2024-12-25 2025-02-14 山东五联能源装备科技有限公司 一种蒸汽锅炉装置

Also Published As

Publication number Publication date
DE3425668A1 (de) 1986-01-23
EP0168024A3 (fr) 1986-07-23

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