EP3406972A1 - Tuyau d'échappement coaxial pourvu d'ouverture de mesure - Google Patents

Tuyau d'échappement coaxial pourvu d'ouverture de mesure Download PDF

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Publication number
EP3406972A1
EP3406972A1 EP18167653.7A EP18167653A EP3406972A1 EP 3406972 A1 EP3406972 A1 EP 3406972A1 EP 18167653 A EP18167653 A EP 18167653A EP 3406972 A1 EP3406972 A1 EP 3406972A1
Authority
EP
European Patent Office
Prior art keywords
exhaust pipe
maintenance opening
coaxial
closure flap
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.)
Withdrawn
Application number
EP18167653.7A
Other languages
German (de)
English (en)
Inventor
Richard Huvelin
Andrej Windholz
Udo Halbach
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.)
Vaillant GmbH
Original Assignee
Vaillant 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
Application filed by Vaillant GmbH filed Critical Vaillant GmbH
Publication of EP3406972A1 publication Critical patent/EP3406972A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/08—Doors or covers specially adapted for smoke-boxes, flues, or chimneys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2211/00—Flue gas duct systems
    • F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
    • F23J2211/101—Balanced flues (combining air supply and flue gas exhaust) with coaxial duct arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/60—Service arrangements

Definitions

  • the invention relates to a measuring opening for coaxial exhaust pipes.
  • the invention is therefore based on the object to avoid an open maintenance opening.
  • a closure element is located on the maintenance opening, which automatically closes the opening in the case where no exhaust gas measuring probe is inserted in the maintenance opening.
  • the drive can be done via a spring, gravity or elasticity.
  • a whistle can generate a warning signal.
  • the closure element may be a closure flap.
  • This is preferably mounted via a hinge, wherein the rotary joint is preferably arranged at the upper edge of the mouth of the maintenance opening, so that gravity favors the closing.
  • the closure flap can be arranged inside or outside the coaxial exhaust pipe. If the flap is inside, it is permanently exposed to the exhaust gas and must therefore be resistant to temperature and condensate.
  • a flap with a cone or truncated cone favors the closing. Even a sloping contact surface favors the closing; This is especially true when the flap is closed only by gravity.
  • the closure element may optionally be made of an elastic material, preferably a membrane. If at least one slot is arranged in it, the former deforms Membrane elastic when inserting the probe and closes this opening again elastic when pulling out.
  • the flap can be made via a swivel joint. If this is arranged above the maintenance opening, then the force of gravity is sufficient to direct the closure flap downwards over the maintenance opening.
  • closure flap is arranged outside the coaxial exhaust pipe, there is the advantage that it and the mechanism are not exposed to attack by the exhaust gases. In addition, it is recognizable in case of error if the flap is open.
  • closure flap outside of the coaxial exhaust pipe, that the closure flap must first be moved away from the maintenance opening. Only then can an exhaust gas measuring probe be inserted into the maintenance opening. If, however, the closing flap is located inside the exhaust pipe, then the closing flap is opened when the exhaust gas measuring probe is inserted.
  • closure flap is made of an elastic material, preferably plastic, then the closure flap can better conform to the opening of the maintenance opening and thus better seal.
  • the flap has a cone, partial cone or a spherical segment, this element can penetrate into the mouth when closing and close it better.
  • a whistle may be arranged in the maintenance opening, which generates a warning sound when the maintenance opening is open.
  • the maintenance opening protrudes into the interior of the exhaust pipe and has an angling against the Flow direction of the exhaust pipe, so that the pipe is flowed through in an upward direction.
  • the whistle is adapted to the exhaust gas temperature and the exhaust gas composition.
  • FIG. 1 shows a coaxial exhaust pipe 1 with an inner exhaust pipe 2 and a coaxial arranged around fresh air line 3. From the environment a cylindrical maintenance opening 4 projects through the fresh air line 3 into the exhaust pipe 2. In the figure, an exhaust gas probe 5 projects through the maintenance opening 4 in the interior of Exhaust pipe 2.
  • FIG. 2 shows a variant of the invention.
  • the cylindrical maintenance opening 4 projects further into the exhaust pipe 2 in comparison with the prior art and also has a right-angled bend downwards, so that the opening protrudes counter to the exhaust gas flow direction.
  • In the opening of the pipe is a 6th
  • the exhaust gas flow is generally so low that the whistle 6 generates no noise. Even if it produces noises, this is not harmful.
  • FIG. 3 shows a coaxial exhaust pipe 1 according to the invention with an inner exhaust pipe 2 and a coaxial arranged around fresh air line 3 and a maintenance opening 4, which projects from the outside through the fresh air line 3 into the exhaust pipe 2.
  • a movable closing flap 7 is arranged on a rotary joint 8 outside of the coaxial exhaust pipe 1.
  • Under the influence of gravity closes the shutter 7 without inserted exhaust probe maintenance opening 4, since in this case the center of gravity of the shutter 7 is located to the right of the pivot 8 and thus gravity causes a clockwise rotation and the mouth of the maintenance opening 4 of the shutter is closed.
  • the closing force is increased. It is advantageous if the mouth of the maintenance opening 4 on the side of the closure flap 7 slopes slightly from top to bottom, with the maintenance opening 4 being slightly longer at the bottom, so that the closure flap 7 rests securely over the entire area by gravity.
  • the rotary joint 8 does not necessarily have to be arranged at the top.
  • the shutter 7 may alternatively be arranged in the interior of the maintenance opening 4 and is then opened upon insertion of an exhaust gas probe and closed again when pulling out.
  • the closure flap 7 is arranged on a rotary joint 8, wherein a spring 12 acts on the closure flap 7 and closes it.
  • the closure flap 7 seals against a closure cap 13, which is connected via a thread 14 with the maintenance opening 4.
  • a seal 15 seals the closure flap 7 against the closure cap 13.
  • the opening 16 is covered gas-tight by the closure flap 7 in conjunction with the seal 15.
  • another sealing element for redundant sealing can be placed over the opening of the closure cap 13.
  • a truncated cone 9 may be attached to the flap 7; this facilitates on the one hand the centering and also supports the closure.
  • a complete cone or sphere segment can accomplish this task.
  • another sealing element for redundant sealing can be set via the closing flap 7.
  • the axis of rotation of the rotary joint 8 of the shutter 7 can also - as in FIG. 6 shown - parallel to the maintenance opening 4 and be arranged above the maintenance opening, so that the closure flap 7 is rotated in Ur Serviceer- or counterclockwise about the axis of rotation. Again, the focus is shifted upwards when opening, so that an open mouth of the maintenance opening 4 is closed without introduced exhaust gas probe under the influence of gravity.
  • the rotary joint 8 does not necessarily have to be arranged at the top.
  • closure flap 7 is made of an elastic material, this favors the sealing effect. If the closure flap 7 is made entirely of an elastic material such as a membrane, then an explicit pivot can optionally be dispensed with, since then the flap itself allows a displacement of position due to its elastic deformation. Alternatively, the closure flap 7 may have a separate, preferably elastic sealing surface.
  • FIG. 7 shows a provided with slots 11 membrane 10, which is located in the maintenance opening 4.
  • the membrane 10 opens at the slots 11. Upon withdrawal, the membrane 10 closes again. This solution is possible even without flap 7.
  • FIG. 8 shows a maintenance opening 4 with a closed cap 13, which are connected by a tension spring 17.
  • the tension spring 17 is connected via a fastening ring 18 with the maintenance opening 4. If the cap 13 is removed, an exhaust gas probe 5 can be inserted. The closure cap 13 is then due to the tensile force of the tension spring 17 immediately adjacent to the maintenance opening 4. If the exhaust gas probe 5 is removed, the closure flap 13 is pulled in front of the maintenance opening 4 and can then be screwed by a thread 14 with this.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)
EP18167653.7A 2017-05-24 2018-04-17 Tuyau d'échappement coaxial pourvu d'ouverture de mesure Withdrawn EP3406972A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017111418 2017-05-24

Publications (1)

Publication Number Publication Date
EP3406972A1 true EP3406972A1 (fr) 2018-11-28

Family

ID=62017185

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18167653.7A Withdrawn EP3406972A1 (fr) 2017-05-24 2018-04-17 Tuyau d'échappement coaxial pourvu d'ouverture de mesure

Country Status (1)

Country Link
EP (1) EP3406972A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3819542A1 (fr) * 2019-11-05 2021-05-12 Vaillant GmbH Appareil de chauffage pourvu d'orifice de mesure de gaz d'échappement sécurisé

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1541117A (en) * 1925-06-09 Joseph cochkan
GB890985A (en) * 1959-09-23 1962-03-07 Skoglund & Olson Ab Improvements in inspection doors for chimney flues
DE1942679U (de) * 1965-05-13 1966-07-21 Hovalwerk Ag Ospelt Rauchgassammler fuer einen heizkessel.
EP1318352A2 (fr) * 2001-12-05 2003-06-11 CENTROTHERM Abgassystemtechnik GmbH Arrangement pour connecter deux parties d'un conduit de cheminée avec amenée d'air de combustion
DE102011009984A1 (de) * 2011-02-01 2012-08-02 Vaillant Gmbh Selbstschließende Revisionsöffnung
DE202012101545U1 (de) * 2011-10-10 2013-01-17 Dieter Bächle Verschlussdeckel zum Verschließen einer Kontrollöffnung an einem Kunststoff-Abgasrohr und System mit einem Verschlussdeckel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1541117A (en) * 1925-06-09 Joseph cochkan
GB890985A (en) * 1959-09-23 1962-03-07 Skoglund & Olson Ab Improvements in inspection doors for chimney flues
DE1942679U (de) * 1965-05-13 1966-07-21 Hovalwerk Ag Ospelt Rauchgassammler fuer einen heizkessel.
EP1318352A2 (fr) * 2001-12-05 2003-06-11 CENTROTHERM Abgassystemtechnik GmbH Arrangement pour connecter deux parties d'un conduit de cheminée avec amenée d'air de combustion
DE102011009984A1 (de) * 2011-02-01 2012-08-02 Vaillant Gmbh Selbstschließende Revisionsöffnung
DE202012101545U1 (de) * 2011-10-10 2013-01-17 Dieter Bächle Verschlussdeckel zum Verschließen einer Kontrollöffnung an einem Kunststoff-Abgasrohr und System mit einem Verschlussdeckel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3819542A1 (fr) * 2019-11-05 2021-05-12 Vaillant GmbH Appareil de chauffage pourvu d'orifice de mesure de gaz d'échappement sécurisé

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