EP0535331A1 - Chaudière - Google Patents

Chaudière Download PDF

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Publication number
EP0535331A1
EP0535331A1 EP92113399A EP92113399A EP0535331A1 EP 0535331 A1 EP0535331 A1 EP 0535331A1 EP 92113399 A EP92113399 A EP 92113399A EP 92113399 A EP92113399 A EP 92113399A EP 0535331 A1 EP0535331 A1 EP 0535331A1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
combustion chamber
guide sleeve
waste gas
opening
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
EP92113399A
Other languages
German (de)
English (en)
Other versions
EP0535331B1 (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.)
VIESSMANN, HANS, DR.
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP0535331A1 publication Critical patent/EP0535331A1/fr
Application granted granted Critical
Publication of EP0535331B1 publication Critical patent/EP0535331B1/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
    • F24H1/285—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 alongside the combustion chamber

Definitions

  • a boiler of the type mentioned is known from DE-A-39 40 165. With such a boiler, the task is solved to be able to provide exhaust gas recirculation with the simplest means and using the structural conditions of such boilers with the least possible design changes.
  • connection point between the exhaust gas recirculation pipe and the connection opening on the combustion chamber lock is somewhat critical, especially since such locks are usually swiveling boiler lock doors, i.e. the sealing of the connection point is difficult because the door can be swiveled, especially since the fire lock is no longer accessible can.
  • the exhaust gas recirculation pipe cannot be connected with a "noble fit" and in view of thermal expansion of the exhaust gas recirculation pipe, a proper seal in all operating phases of the boiler is in question.
  • the invention is therefore based on the object to improve a boiler of the generic type in such a way that on the one hand the sealing of the mouth of the exhaust gas recirculation pipe is guaranteed in all operating states of the boiler and on the other hand the combustion chamber closure can be opened and closed without interference from the engaging exhaust gas recirculation pipe.
  • the training forms according to claims 3 and 4 are provided, which at the same time also define a predetermined adjustment path for the sealing ring.
  • the boiler consists of a water-carrying housing 1, in which a combustion chamber 3 equipped with burner 2 is arranged from which a plurality of exhaust gas pipes 4 lead to the exhaust gas collection chamber 5, in which exhaust gas displacement bodies 6 are arranged, of which at least in one of the exhaust gas intake pipes 4 the exhaust gas displacement body 6 is designed as an exhaust gas recirculation pipe 20 which opens out towards the exhaust gas collection chamber 5 and the other end 8 of which is connected to one Connection opening of the combustion chamber closure 10 provided with a heat insulation body 19 is connected and from there is connected to the burner 2.
  • connection opening designed as an engagement opening 9 is dimensioned larger in cross section than the exhaust gas recirculation pipe 20 and that an axially and elastically adjustable sealing ring 21 is arranged in the engagement opening, which is guided on the wall of the engagement opening 9, and which is in the closed position of the combustion chamber closure 10 at the end 8 of the exhaust gas pipe 20.
  • the possible displacement positions of the sealing ring 21 are indicated by dashed lines in FIG. 2.
  • the engagement opening 9 is provided with an outer guide sleeve 23 for the sealing ring 21; a compression spring 25 is arranged between this and an abutment 24 on the outer guide sleeve 23.
  • the sealing ring 21 is seated firmly on the inflow end of a displaceable inner guide sleeve 26 which is provided on the outflow end with a stop 27 for the abutment 24.
  • the sealing ring 21 is mounted in a profile ring 28 which is arranged on the inner guide sleeve 26 and is rectangular in cross section and is guided with its axially oriented leg 29 in the outer guide sleeve 23.
  • the outer guide sleeve 23 is formed at its firebox end in the form of a funnel 30, the actual dimensions of which depend on the actual depth of engagement, the Swing radius of the combustion chamber closure and the outer diameter of the exhaust gas recirculation pipe 20 must be directed.
  • the outer guide sleeve 23 is formed in two parts, and between the two sleeve parts 23 ', 23' 'the abutment 24 is attached in the form of a ring 31 comprising the inner guide sleeve 26 in a fold 22.
  • the fold 22 shown of the sleeve part 23 'does not have to be a circumferential ring fold for receiving the ring 31, but instead simple bendable extensions are sufficient for this.
  • the stop 27 of the inner sleeve 26 can also be designed in the form of extension tabs, so that the inner sleeve 26, together with the compression spring 25, the sealing ring 21 and the sleeve part 23 '' from the inside when the ring 31 has already been inserted and is then provided with corresponding tab penetration recesses of the combustion chamber closure 10 can be inserted, after which a recess 32 provided for this purpose in the heat insulating body 19 is filled with a soft insulation packing 19 '.
  • the soft insulation packing 19 'in connection with a relatively low radial displaceability of the sealing ring 21 in the fold 22 and also the funnel shape of the end of the sleeve part 23' ' has a special one Significance when the relevant parts, aside from the axial displaceability of the sealing ring 21, can to a certain extent automatically adjust themselves to their correct assignment.
  • the entire sealing device thus adapts not only axially to the position of the end 8 of the stationary exhaust gas recirculation pipe 20 with its sealing ring 21, but is also, to a certain extent, radially "floating" in the combustion chamber closure 10, except for the sleeve part 23 ', and is pressed also thanks to the funnel 30 in case of inaccuracies in fit and when closing the combustion chamber closure automatically in the correct position, so that the seal is always guaranteed.

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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)
  • Combustion Of Fluid Fuel (AREA)
  • Gas Burners (AREA)
EP92113399A 1991-09-28 1992-08-06 Chaudière Expired - Lifetime EP0535331B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4132435 1991-09-28
DE4132435A DE4132435C1 (fr) 1991-09-28 1991-09-28

Publications (2)

Publication Number Publication Date
EP0535331A1 true EP0535331A1 (fr) 1993-04-07
EP0535331B1 EP0535331B1 (fr) 1994-06-15

Family

ID=6441754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113399A Expired - Lifetime EP0535331B1 (fr) 1991-09-28 1992-08-06 Chaudière

Country Status (3)

Country Link
EP (1) EP0535331B1 (fr)
AT (1) ATE107406T1 (fr)
DE (1) DE4132435C1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199559B (de) * 1961-07-21 1965-08-26 Steinmueller Gmbh L & C Ausgleicher fuer Rohrleitungen
EP0431314A2 (fr) * 1989-12-05 1991-06-12 Viessmann Werke GmbH & Co. ChaudiÀ¨re de chauffage brûlant des combustibles liquides ou gazeux

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199559B (de) * 1961-07-21 1965-08-26 Steinmueller Gmbh L & C Ausgleicher fuer Rohrleitungen
EP0431314A2 (fr) * 1989-12-05 1991-06-12 Viessmann Werke GmbH & Co. ChaudiÀ¨re de chauffage brûlant des combustibles liquides ou gazeux

Also Published As

Publication number Publication date
EP0535331B1 (fr) 1994-06-15
DE4132435C1 (fr) 1993-04-22
ATE107406T1 (de) 1994-07-15

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