EP4377611B1 - Interne armaturdichtung - Google Patents

Interne armaturdichtung

Info

Publication number
EP4377611B1
EP4377611B1 EP22744218.3A EP22744218A EP4377611B1 EP 4377611 B1 EP4377611 B1 EP 4377611B1 EP 22744218 A EP22744218 A EP 22744218A EP 4377611 B1 EP4377611 B1 EP 4377611B1
Authority
EP
European Patent Office
Prior art keywords
seal
flue
combustion appliance
main body
section
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.)
Active
Application number
EP22744218.3A
Other languages
English (en)
French (fr)
Other versions
EP4377611C0 (de
EP4377611A1 (de
Inventor
Matthew ROWINSKI
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.)
BDR Thermea Group BV
Original Assignee
BDR Thermea Group BV
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 BDR Thermea Group BV filed Critical BDR Thermea Group BV
Publication of EP4377611A1 publication Critical patent/EP4377611A1/de
Application granted granted Critical
Publication of EP4377611C0 publication Critical patent/EP4377611C0/de
Publication of EP4377611B1 publication Critical patent/EP4377611B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 
    • F23J13/04—Joints; Connections
    • 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
    • F23J2213/20—Joints; Connections
    • F23J2213/204—Sealing arrangements

Definitions

  • the invention relates to a seal, in particular to an internal fitting seal fixable to a flue of a combustion appliance. Additionally, the invention relates to an apparatus for a combustion appliance, in particular a direct flue elbow comprising said seal and to a combustion appliance comprising said seal or said apparatus. Also, the invention relates to a retrofit kit for a combustion appliance comprising said seal or said apparatus and a method for retrofitting a combustion appliance.
  • a combustion appliance such as a gas boiler, especially replacing old appliances
  • Installing a combustion appliance can be extremely time consuming due to several safety requirements that need to be fulfilled.
  • a combustion appliance such as a gas boiler
  • a safe sealing assembly is needed.
  • a safe and relatively low-cost sealing assembly to be installed to a flue of a combustion appliance that facilitates the installation work of a combustion appliance, particularly in a closed room. It is furthermore desirable that the sealing can be mounted relatively quickly and by a reduced number of specialized personnel, without affecting the safety requirements. In addition, it is desirable that the sealing assembly can be used to an already existing combustion appliance without the necessity of damage the masonry of the building.
  • Prior art fails to address the problem of simplifying the mounting of the sealing assembly for a flue conduit when installing a new gas boiler or when adapting an old gas boiler. Also, the prior art documents are not suitable to provide a solution that is cost effective and safe.
  • connection for the exhaust gas between a fireplace and an exhaust pipe.
  • the connection comprises an intermediate pipe that is connected to the the exhaust pipe.
  • a seal is arranged on the intermediate pipe.
  • the seal has an external cross section which widens conically in the direction of the exhaust line.
  • DE 196 47 257 A1 discloses a seal for sealing a hole in a wall.
  • the seal is made of elastic material and has reinforcing lips that overlap the hole at each end. In the untensioned state of the seal, at least one of these reinforcing lips projects only slightly beyond the edge of the hole and inwards. When the cable or pipe is inserted, it forces this lip against the edge of the hole
  • the object of the invention is to provide a seal that is easy to implement, cost-effective, safe, and in particular easy and efficient to mount.
  • a seal in particular an internal fitting seal, fixable to a flue of a combustion appliance, in particular a gas boiler
  • the seal having a main body comprising: a front section comprising a covering flange, a rear section comprising at least a sealing lip, and a fixing section located between the front section and the rear section, wherein the fixing section comprises fixing means used for fixing the seal to an external surface of the flue of the combustion appliance, wherein the fixing means comprises one or more openings.
  • a boiler flue assembly can be installed by a single person from the interior of the property, thereby creating an environmental seal for the outside.
  • this configuration it is possible to fix the seal to the flue before fitting, thereby resulting in the removal of the need to physically get to the outside of the property.
  • the need to repair the exterior brick and fit the external black cover is no longer required. This also removes the need to hire additional personal to do the install from the exterior of the property at the same time, removing additional risk and cost.
  • the main body can be a one piece element and/or can be deformable.
  • the main body can be configured so that it can deform when the seal is pushed through a hole of a wall which has a slightly smaller dimension, in particular cross section, than the seal.
  • the main body can be made of a material suitable for molding, in particular is made of rubber.
  • the seal can be manufactured by injection molding, i.e. by one shot injection rubber mold.
  • the rubber can have a shore hardness comprised between A40 and A80, in particular A60.
  • the main body of the seal is deformable in such a way that the metal flue with the seal fixed to it can be passed through the hole in the wall from the interior of the property till the front flange.
  • the seal can reassume the original shape and cab be arranged flush with the external wall.
  • the seal is also acting as an aesthetic cover to hide any brickwork/external surface damaged that may have occurred during the installation.
  • the front section of the main body can act as an aesthetic cover and a rear section can act as an environmental seal. It is noted that the external aesthetic seal is merged here with the environmental seal. Therefore, there is no need to fit (external) existing covers and seals using for example cement. This reduces the installation time and costs.
  • the opening can be a through hole or a dimple, in particular a receptacle, wherein a dimple is a small hollow place, in particular having a diameter of 2 to 5 mm.
  • the openings can be disposed equidistant around the main body. In this way, the seal can be fixed to the flue of the combustion appliance by using screws passing through the openings.
  • the flue can be made of a metallic material.
  • the main body can be ring shaped.
  • the front section can have a greater diameter than the rear section. In this way, the front section can better act as an aesthetic cover, as already mentioned. In particular, the front section can shield from the wind, UV and some rain/water entrance.
  • the length of the front section in the axial direction, can be smaller than the length of the rear section. A longer rear section ensures a better environmental sealing of this section.
  • the front section, the rear section and the fixing section can be shaped having a rotational symmetry.
  • the main body has an internal opening with an internal diameter comprised between 50 mm (millimeter) and 150 mm, in particular 100 mm or 127 mm. These dimensions fit with existing wall bore sizes of 50mm and 150mm, in particular 100 mm or 127 mm. Seals having a main body with a smaller internal diameter can be used for retrofitting installations and seals having a main body with a greater internal diameter can be used for new installations.
  • the rear section comprises at least a sealing lip.
  • This lip is used to prevent the external environmental conditions from passing through the wall bore.
  • the number of sealing lips can be varied. With only one sealing lip, there is the risk of not creating a correct environmental seal. This is because the installer must be more precise and accurate with the measuring and cutting/setting of the flue length. By adding the number of lips, a better environmental seal can be obtained. Also, the sealing lips can aid in keeping the flue concentric. The more lips are present, the more they centralize the flue in position.
  • the rear section comprises four sealing lips.
  • Four lips are considered a perfect compromise between a good environmental sealing and a reduced friction with the wall.
  • an apparatus for a combustion appliance in particular a direct flue elbow, is provided.
  • the apparatus comprises a flue having a first end connectable to the appliance for receiving a flue gas from said appliance and a second end for the outlet of the flue gas, the second end being configured for discharging the fuel gas in the external environment, and the inventive seal fixable at the second end of the flue.
  • a combustion appliance in particular a gas boiler, the combustion appliance comprising an inventive seal or the inventive apparatus.
  • combustion appliances can include furnaces, water heaters, boilers, direct/in-direct make-up air heaters, power/jet burners and any other residential, commercial or industrial combustion appliance.
  • the kit comprises at least an inventive seal or at least an inventive apparatus and means for installing the seal at a flue of the combustion appliance or for installing the apparatus in the combustion appliance.
  • the fixing means it can be for example connecting elements such as screws or pins to fix the seal to the flue or to fix the apparatus to a component of the appliance.
  • the kit can comprise two inventive seals of different size, i.e. two seals having a main body with two different internal diameters, between 50 mm and 150 mm, in particular 100 mm or 127 mm.
  • a method for retrofitting a combustion appliance, in particular a gas boiler comprises:
  • the method comprises passing the flue through an opening in a wall after fixing the seal to said flue.
  • the seal 1 is a one-piece structure made for example of rubber.
  • the seal 1 has a main body 4 comprising a front section 5, a rear section 7 and a fixing section 9 located between the front section 5 and the rear section 7. All these sections, and therefore the main body of the seal 1, have a shape with rotational symmetry, for example are ring-shaped with a central opening or internal opening (not shown in the figure) so that a flue conduit 2 can be inserted in the seal 1 through said internal opening.
  • the front section 5 is provided with a covering flange 6 that acts as an aesthetic seal cover.
  • the rear section 7 comprises four sealing lips 8 arranged equidistant at one end of the main body 4.
  • the lips 8 serves to correctly center the seal 1 when fixed to the flue and to ensure an environmental sealing.
  • the fixing section 9 comprises fixing means 10 distributed along the surface of the fixing section.
  • the fixing means 10 are openings 12. These openings 12 can be dimples, in particular receptacles, or through holes and are four and are arranged at 90 degrees apart to mechanically fix the seal 1 to the flue 2, for example by using screws.
  • Figure 2 illustrates the application of the internal fitting seal 1 to the flue 2 of a combustion appliance 3.
  • the combustion appliance 3 is located inside a closed room 19 that is separated from the external environment by a partitioning wall 17.
  • the seal is fixed to the flue 2 for example by screwing screws through the openings 12.
  • the flue 2 is inserted into a central opening of the seal 1 and the seal 1 is fixed to an external surface 11 of the flue 2, i.e., the fixing section 9 that is in contact with said internal surface 11 is fixed through the fixing means 10.
  • the seal 1 is fixed at a terminal end of the flue 2. Once the seal 1 is fixed to the flue 2, the flue is passed through an opening provided in a partitioning wall 17.
  • the flue 2 is pushed through the wall 17 until the front section 5, i.e. the covering flange 6 of the seal 1, exits the hole in the wall 17 and can be positioned flush with the external side of the wall 17.
  • the dimensions of the covering flange 6 are, in particular slightly, greater that the dimensions of the hole in the wall, so that the covering flange 6 is deformed when passing through the hole of the wall 17 but can function as covering seal once outside the hole.
  • the other sections of the main body 4 of the seal 1 are located inside the hole of the wall 17 and act respectively as fixing element (fixing section 9) and as environmental seal (rear section 7).
  • the entire process of fixing the seal 1 and installing the flue 2 of the combustion appliance 3 outside the room 19 can be carried out by remaining inside the room 19. Also, the installation can be carried out also by a single operator in a short time without the necessity of a ladder or scaffold and without the necessity of repairing damages to the external side of the wall 17.
  • FIG. 3 illustrates a more detailed example of the application of the seal 1.
  • the figure 3 shows the apparatus 13 that is a direct flue elbow.
  • the apparatus 13 is composed by a flue 2 and the seal 1 fixed to the flue 2.
  • the flue 2 comprises a first end 14 connectable to the appliance 3 for receiving a flue gas from the appliance 3.
  • the appliance is for example a gas boiler.
  • the apparatus can comprise a connecting flange 18 at the first end 14 and suitable connecting elements, such as screws or pins, can be used.
  • the flue 2 comprises also a second end 15 for the outlet of the flue gas.
  • the second end 15 is configured for discharging the fuel gas in the external environment.
  • the seal 1 is fixed to the second end 15 of the flue 2. As clearly shown in the figure, the seal 1 is fixed to the flue 2 by means of screws. According to the example of figure 3 , the flue 2 passes through two walls 17 before exiting in the external environment. In principle, the flue 2 can pass any number of walls 17. The important aspect is that the seal 1 need to be fixed at a terminal end (i.e. the second end 15) of the flue 2. In the figure, the double function of the seal 1 is also clarified. At one hand, the front section 5, i.e. the covering flange 6, acts as a covering seal and, on the other hand, the rear section 7, i.e. the sealing lips 8, acts as an environmental seal.
  • the apparatus 15 can easily be used to retrofit an existing combustion appliance 3, by simply connecting the apparatus 13 to the appliance 3, thereby replacing an existing flue assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)

Claims (14)

  1. Dichtung (1), insbesondere eine interne Armaturdichtung, die an einem Abzugsrohr (2) eines Verbrennungsgeräts (3), insbesondere eines Gasheizkessels, befestigt werden kann, wobei die Dichtung (1) einen Hauptkörper (4) aufweist, umfassend:
    einen vorderen Abschnitt (5), umfassend einen Abdeckflansch (6),
    einen hinteren Abschnitt (7), umfassend mindestens eine Dichtungslippe (8), und
    einen Befestigungsabschnitt (9), der sich zwischen dem vorderen Abschnitt (5) und dem hinteren Abschnitt (7) befindet,
    wobei der Befestigungsabschnitt (9) Befestigungsmittel (10) umfasst, die zum Befestigen der Dichtung (1) an einer Außenfläche (11) des Abzugsrohrs (2) des Verbrennungsgeräts (3) verwendet werden, dadurch gekennzeichnet, dass die Befestigungsmittel (10) eine oder mehrere Öffnungen (12) umfassen.
  2. Dichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass der Hauptkörper (4) ein einteiliges Element ist.
  3. Dichtung (1) nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass der Hauptkörper (4) aus einem zum Formen geeigneten Material besteht, insbesondere aus Gummi.
  4. Dichtung (1) nach Anspruch 3, dadurch gekennzeichnet, dass der Hauptkörper (4) aus Gummi einer Shore-Härte zwischen A40 und A80 gefertigt ist.
  5. Dichtung (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Öffnung (12) eine Durchgangsbohrung oder eine Vertiefung ist, insbesondere eine Aufnahme.
  6. Dichtung (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Öffnungen (12) in gleichen Abständen um den Hauptkörper (4) herum angeordnet sind.
  7. Dichtung (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass
    a. der Hauptkörper (4) ringförmig ist und/oder
    b. der vordere Abschnitt (5) einen größeren Durchmesser aufweist als der hintere Abschnitt (7) und/oder
    c. die Länge des vorderen Abschnitts (5) in axialer Richtung kleiner ist als die Länge des hinteren Abschnitts (7) und/oder
    d. der vordere Abschnitt (5), der hintere Abschnitt (7) und der Befestigungsabschnitt (9) rotationssymmetrisch geformt sind.
  8. Dichtung (1) nach Anspruch 7, dadurch gekennzeichnet, dass der Hauptkörper (4) eine interne Öffnung hat, deren Innendurchmesser zwischen 50 mm und 150 mm liegt, insbesondere 100 mm oder 127 mm.
  9. Dichtung (1) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der hintere Abschnitt (7) vier Dichtungslippen (8) umfasst.
  10. Vorrichtung (13) für ein Verbrennungsgerät (3), insbesondere für einen Abzugsrohrkrümmer, umfassend:
    ein Abzugsrohr (2), das ein erstes Ende (14) aufweist, das an das Gerät (3) anschließbar ist, um Abgas aus dem Gerät (3) aufzunehmen, und ein zweites Ende (15) für den Austritt des Abgases, wobei das zweite Ende (15) so konfiguriert ist, dass es das Brenngas in die externe Umgebung abgibt, und
    eine Dichtung (1) nach einem der Ansprüche 1 bis 9, die am zweiten Ende (15) des Abzugsrohrs (2) befestigbar ist.
  11. Verbrennungsgerät (3), insbesondere Gasheizkessel, umfassend die Dichtung (1) nach einem der Ansprüche 1 bis 9 oder die Vorrichtung (13) nach Anspruch 10.
  12. Nachrüstsatz (16) für ein Verbrennungsgerät (3), insbesondere einen Gasheizkessel, umfassend mindestens eine Dichtung (1) nach einem der Ansprüche 1 bis 9 oder mindestens eine Vorrichtung (13) nach Anspruch 10 und Mittel zum Anbringen der Dichtung (1) an einem Abzugsrohr (2) des Verbrennungsgeräts (3) oder zum Anbringen der Vorrichtung (13) im Verbrennungsgerät (3).
  13. Verfahren zum Nachrüsten eines Verbrennungsgeräts (3), insbesondere eines Gasheizkessels, umfassend
    das Befestigen mindestens einer Dichtung (1) nach einem der Ansprüche 1 bis 9 an einem Abzugsrohr (2) des Verbrennungsgeräts (3) oder
    das Anbringen einer Vorrichtung (13) nach Anspruch 10 in dem Verbrennungsgerät (2).
  14. Verfahren nach Anspruch 13, wobei das Verfahren ferner das Durchführen des Abzugsrohrs (2) durch eine Öffnung in einer Wand (17) nach dem Befestigen der Dichtung (1) an dem Abzugsrohr (2) umfasst.
EP22744218.3A 2021-07-27 2022-07-20 Interne armaturdichtung Active EP4377611B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21187847.5A EP4124796A1 (de) 2021-07-27 2021-07-27 Interne armaturdichtung
PCT/EP2022/070309 WO2023006534A1 (en) 2021-07-27 2022-07-20 Internal fitting seal

Publications (3)

Publication Number Publication Date
EP4377611A1 EP4377611A1 (de) 2024-06-05
EP4377611C0 EP4377611C0 (de) 2025-11-19
EP4377611B1 true EP4377611B1 (de) 2025-11-19

Family

ID=77447691

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21187847.5A Withdrawn EP4124796A1 (de) 2021-07-27 2021-07-27 Interne armaturdichtung
EP22744218.3A Active EP4377611B1 (de) 2021-07-27 2022-07-20 Interne armaturdichtung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21187847.5A Withdrawn EP4124796A1 (de) 2021-07-27 2021-07-27 Interne armaturdichtung

Country Status (3)

Country Link
EP (2) EP4124796A1 (de)
ES (1) ES3056622T3 (de)
WO (1) WO2023006534A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519780U1 (de) * 1995-12-13 1996-02-15 Kessel, Bernhard, 85101 Lenting Manschette zum Abdichten einer Wanddurchbrechung
DE29911322U1 (de) * 1999-06-29 1999-08-26 Witzenmann GmbH Metallschlauch-Fabrik Pforzheim, 75175 Pforzheim Verbindung für das Abgasbzw. die Zuluft zwischen einer Feuerstätte und einer Abgas- bzw. Zuluftleitung
US6792726B1 (en) * 2002-01-04 2004-09-21 Darrell Price Presealed system

Also Published As

Publication number Publication date
EP4377611C0 (de) 2025-11-19
EP4124796A1 (de) 2023-02-01
WO2023006534A1 (en) 2023-02-02
ES3056622T3 (en) 2026-02-23
EP4377611A1 (de) 2024-06-05

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