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EP1191283A1 - Pipe system for discharging flue gases - Google Patents

Pipe system for discharging flue gases Download PDF

Info

Publication number
EP1191283A1
EP1191283A1 EP01203618A EP01203618A EP1191283A1 EP 1191283 A1 EP1191283 A1 EP 1191283A1 EP 01203618 A EP01203618 A EP 01203618A EP 01203618 A EP01203618 A EP 01203618A EP 1191283 A1 EP1191283 A1 EP 1191283A1
Authority
EP
European Patent Office
Prior art keywords
pipe
closure member
pipe segment
inspection
closure
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Withdrawn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
EP01203618A
Other languages
German (de)
English (en)
French (fr)
Inventor
Albert-Jan Kistemaker
Hans Nicolaas Noorlander
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.)
InterActive bouwprodukten BV
Original Assignee
InterActive bouwprodukten 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 InterActive bouwprodukten BV filed Critical InterActive bouwprodukten BV
Publication of EP1191283A1 publication Critical patent/EP1191283A1/en
Withdrawn legal-status Critical Current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 
    • F23J13/04—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 
    • 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
    • F23J2213/20—Joints; Connections
    • F23J2213/203—Joints; Connections between stack/duct and combustion apparatus
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/13004—Water draining devices associated with flues

Definitions

  • the present invention relates to a pipe system for discharging flue gases, comprising an upright part and a lying part which comprises first and second pipe segments which extend on either side of the upright part and substantially in line with one another, at least the second pipe segment being provided, at a free end thereof, with a detachable closure member, which fits to it, for closing off the second pipe segment in a sealed manner, the closure member comprising a closure plate and sealing means for producing a seal between the second pipe segment and the closure member.
  • a pipe system of this type is known, for example, from the American patent US-A-4,603,680.
  • This document discloses a T-shaped inducer box assembly which, for example, forms part of a pipe system which is connected to a central-heating boiler and is used to discharge flue gases.
  • the known pipe system comprises a flue-gas vent pipe with an upright part which functions as an inlet pipe segment and a lying part with an outlet pipe segment.
  • the inlet pipe segment is designed to be fitted to an upright flue-gas outlet pipe of the central-heating boiler, the centre axis of which is vertically oriented.
  • the free end of the outlet pipe segment is provided with coupling means for effecting a coupling with a lying flue-gas outlet pipe.
  • the pipe system further comprises a second pipe segment which extends in line with the outlet pipe segment.
  • This second pipe segment can be used, for example, to look into the outlet pipe segment, and in the text which follows will be referred to consistently as an inspection pipe.
  • the free end of the inspection pipe is open, so that it is possible to inspect the lying flue-gas outlet pipe.
  • the free end is closed off by means of a closure member, which is generally cylindrical and comprises firstly an open end and secondly a closed end.
  • the dimensions of the closure member are such that it can be pushed over the outer surface of the inspection pipe.
  • the closed end forms a closure plate which can bear against the free end of the inspection pipe.
  • the closure member On its outer circumference, the closure member is provided with a clamping ring, by means of which the closure member can be fitted in a gastight manner to the outer surface of the inspection pipe. To carry out an inspection, the closure member can easily be taken off the inspection pipe, and after the inspection the closure member can, again easily, be fitted back onto the inspection pipe.
  • the known pipe system is provided with discharge means for discharging condensed water which is formed in the outlet pipe segment during use of the central-heating boiler.
  • a further drawback of the known pipe system is that the interior of the inspection pipe forms an empty space which has a disruptive influence on the flow of the flue gases in the flue-gas vent pipe.
  • the invention provides a pipe system having a closure member which is designed to be positioned at least partially in the interior of the inspection pipe.
  • a pipe system of this type is characterized in that the closure member is designed to position the closure plate, at a distance from the said free end, in the interior of the second pipe segment, the closure member extending over at least a considerable part, in particular over at least half of the second pipe segment, and the sealing means being active between the outer surface of the closure member and the inner surface of the second pipe segment, so that the interior of the inspection pipe is at least partially filled and less condensed water and, in extreme cases, no condensed water will build up in the inspection pipe.
  • fitting the closure member means that the empty space is reduced in size, and the disruptive effect which it has on the flow of the flue gases will be reduced.
  • the closure member has an insertion depth which is greater than the length of the said pipe segment.
  • the closure member closes off the inspection pipe entirely, so that condensed water cannot enter the inspection pipe, and in particular the condensed water which forms on that part of the closure member which faces towards the outlet pipe segment, i.e. on the closure plate, will, under the force of gravity, drop directly into the inlet pipe segment, so that the sealing ring does not come into contact with the aggressive condensed water if the closure member has an insertion depth which is slightly greater than the length of the said pipe segment.
  • the closure member is provided with a stop member which is designed to bear against the free end of the second pipe segment, and with a connecting member for connecting the closure plate to the said stop member. Consequently, the closure member cannot be introduced too far into the pipe system, and the closure member is sufficiently rigid to be able to ensure a good seal.
  • the sealing means comprise at least one sealing ring which is arranged on the outer surface of the closure member, so that a effective seal is created in the interior of the inspection pipe and no external sealing means are then required.
  • the sealing means are arranged in the vicinity of the closure plate, so that it is impossible for any condensed water to build up between the closure member and the second pipe segment and a complete closure of the inspection pipe is obtained.
  • the lying part comprises an inspection pipe, the centre axis of the said inspection pipe forming an angle of less than 90° with the centre axis of the upright part, and on the other side comprises a socket section for receiving a lying flue-gas outlet pipe, the centre axis of the said socket section corresponding to the centre axis of the inspection pipe.
  • the invention also relates to the use of a pipe system for the production of a flue-gas outlet system of a central-heating boiler, in particular for use with a high-efficiency central-heating boiler, since the problem of the formation of condensed water in the flue-gas outlet section of the system occurs in particular when using a central-heating boiler of this type.
  • Fig. 1 shows a T-shaped fitting which has been used in practice by the applicant and is denoted overall by the reference numeral 1, as is fitted onto an upright flue-gas outlet pipe which is connected to a central-heating boiler.
  • the fitting 1 comprises a pipe system 10 which acts as inner pipe segment and an outer pipe segment 30, the pipe system 10 having smaller transverse dimensions than the outer pipe segment 30 and being arranged, with an intervening radial space, in the interior of the outer pipe segment 30.
  • a number of spacers 60 which serve to keep the pipe system 10 and the outer pipe segment 30 at a distance from one another, are provided on the outer surface of the pipe system 10.
  • the pipe system 10 is used to discharge flue gases which originate from the central-heating boiler, and the outer pipe segment 30 is used to carry air to the central-heating boiler.
  • the pipe system 10 is T-shaped and comprises a lying part 11 and an upright part 12.
  • the upright part 12 is used for connection to an upright flue-gas outlet pipe 25 which is connected to the central-heating boiler and the centre axis of which is vertically oriented.
  • a section of the inner surface of the upright flue-gas outlet pipe 25 adjoins the outer surface of the upright part 12.
  • a section of the outer surface of the upright part 12 is surrounded by a sealing ring 14, so that the connection between the upright flue-gas outlet pipe 25 and the upright part 12 is gastight.
  • a socket section 16 extends from one end 15 of the lying part 11, the outer surface of a sealing ring 17 bearing against a section of the inner surface of the said socket section 16.
  • the socket section 16 has a larger diameter than the remaining section of the lying part 11 and is used to connect the pipe system 10 to a lying flue-gas outlet pipe (not shown).
  • the sealing ring 17 can be used to produce a gastight connection.
  • a section of the lying part 11 which extends in the axial direction from one end 19 to the circumference of the upright part 12 acts as an inspection pipe 20. Both the lying part 11 and the lying flue-gas outlet pipe which extends in line with the said lying part 11 can be inspected via the open end 19.
  • the end 19 is closed off by a closure member 50, which is shaped as a cylindrical cap with a closed base part 51 and a cylinder wall 52.
  • the closed base part 51 bears against the end 19, the cylinder wall 52 extending outside the inspection pipe 20.
  • the closure member 50 comprises an internal sealing ring 54, the outer surface of which bears in a sealed manner against one section of the inner surface of the cylinder wall 52, and the inner surface of which bears in a sealed manner against the outer surface of the inspection pipe 20.
  • the base part 51 of the closure member 50 closes off the inspection pipe 20, the sealing ring 54 producing a gastight closure.
  • the outer pipe segment 30, like the pipe system 10, is T-shaped, with a lying part 31 and an upright part 32.
  • the lying part 31 comprises an end 33, the inspection pipe 20 extending through the said end 33.
  • a cover section 34 is arranged on the lying part 31, the said cover section 34 comprising a cylinder wall 35 which extends from a base plate 36.
  • a section of the inner surface of the cylinder wall 35 adjoins a section of the outer surface of the lying part 31.
  • the cylinder wall 35 comprises a section 38 with a diameter which is larger than the remaining section of the cylinder wall 35.
  • the outer surface of a sealing ring 39 bears against the inner surface of the section 38, while the inner surface of the sealing ring 39 bears against a section of the outer surface of the lying part 31.
  • the closure member 50 can easily be taken manually off the inspection pipe 20.
  • the closure member 50 can be pushed back onto the inspection pipe 20, until the base part 51 bears against the end 19.
  • the cover section 34 can be fitted back onto the lying part 31.
  • the inspection pipe 20 is used for inspection of the lying part 11 of the pipe system 10 and the lying flue-gas outlet pipe. During operation, the interior of the inspection pipe 20 forms an empty space, which has an adverse effect on the flow of the flue gases in the pipe system 10.
  • condensed water may form in the lying flue-gas outlet pipe.
  • the lying flue-gas outlet pipe To discharge any condensed water from the lying flue-gas outlet pipe, it is desirable for the lying flue-gas outlet pipe to be arranged at an angle to the horizontal.
  • the centre axis of the socket section 16 forms an angle of approximately 93° with the centre axis of the vertical part 12. Since the centre axis of the upright part 12 corresponds to the centre axis of the vertically oriented upright flue-gas outlet pipe 25, the centre axis of the socket section 16 forms an angle of approximately 3° with the horizontal.
  • the centre axes of the socket section 16 and the inspection pipe 20 correspond to one another. Therefore, the centre axis of the inspection pipe 20 forms an angle of approximately 87° with the centre axis of the upright part 12 and an angle of approximately 3° with the horizontal.
  • the condensed water which enters the inspection pipe cannot flow back into the central-heating boiler, but rather, instead, accumulates at the closure member. This can have an adverse effect on the closure member, which may result in flue gases leaking via the free end of the inspection pipe. Also, a person wishing to carry out an inspection, on removing the closure member, may unexpectedly be confronted with a quantity of water which flows out of the inspection pipe.
  • the invention aims to provide a solution to these problems.
  • Fig. 2 shows a preferred embodiment of a pipe system 2 according to the invention.
  • the pipe system 2 may form part of a fitting as shown in Fig. 1, and in this preferred embodiment is largely formed in the same way as the pipe system 10 shown in Fig. 1.
  • the pipe system 2 comprises a closure member 50 which is shaped as a cylinder, of which one end is closed off by means of a closure plate 51 and of which another end is open and comprises a radially oriented annular stop part 55.
  • the diameter of the outer circumference of the stop part 55 is larger than the diameter of the outer circumference of an intermediate part 52 which forms the connection between the closure plate 51 and the stop part 55.
  • the closure member 50 is provided with an external sealing ring 54, the inner surface of the said sealing ring 54 adjoining a section of the outer surface of the intermediate part 52.
  • Fig. 2 shows how the closure member is positioned with respect to the pipe system 2.
  • the dimensions of the intermediate part 52 and the closure plate 51 are selected in such a manner that these components of the closure member 50 can be introduced into the interior of the inspection pipe 20.
  • the outer surface of the sealing ring 54 bears against a section of the inner surface of the inspection pipe 20.
  • the stop part 55 bears against the end 19 of the inspection pipe 20.
  • closure plate 51 and the sealing ring 54 are situated at a distance from the end 19. This is achieved by making the closure member 50 extend over a considerable part of the inspection pipe 20.
  • the term "considerable part” is intended to mean that the closure member 50 extends over at least half of the inspection pipe 20.
  • the length of the closure member 50 is slightly greater than the length of the inspection pipe 20. This has the advantage that condensed water which precipitates on a side of the closure plate 51 which faces towards the socket section 16, under the force of gravity, drops off the said closure plate 51 directly into the upright part 12. Moreover, this ensures that the sealing ring 54 does not come into contact with the condensed water and therefore will not be adversely affected by the condensed water.
  • the length of the closure member 50 may also be shorter than or substantially equal to the length of the inspection pipe 20.
  • the length of the closure member 50 is shorter than the length of the inspection pipe 20, however, all that is achieved is an improvement in the flow of the flue gases compared to the known pipe system 10.
  • An embodiment in which the length of the closure member 50 is substantially equal to or greater than the length of the inspection pipe 20 is advantageous with a view to preventing the formation of condensed water and the accumulation of condensed water in the inspection pipe 20, it being advantageous if the sealing ring 54 is situated in the vicinity of the closure plate 51.
  • the stop part 55 is advantageous for positioning the closure member 50 in the inspection pipe 20.
  • the stop part 55 is shaped as a radially oriented ring, but could also, for example, be shaped as a continuous circular plate.
  • the intermediate part 52 is cylindrical, but it may also be of any other desired shape. If the closure member 50 is provided with a stop part 55, the intermediate part 52 serves to form a connection between the closure plate 51 and the stop part 55.
  • the orientation of the inspection pipe 20, the upright part 12 and the socket section 16 with respect to one another may differ from that which has been described above.
  • a significant aspect in this connection is that the centre axis of the inspection pipe 20 forms an angle with the centre axis of the upright part 12, the said angle being considerably greater than 0° and considerably less than 180°.
  • the pipe system 2 may also, for example, be suitable for fitting to a non-vertical flue-gas outlet pipe.
  • the closure plate 51 of the closure member 50 in this preferred embodiment, has a substantially vertical orientation. This is not essential; the closure plate 51 should also be able to adopt a position other than the vertical.
  • the sealing ring 54 it is important for the sealing ring 54 to close off the inspection pipe 20 at a section where the inspection pipe adjoins the circumference of the upright part 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Sampling And Sample Adjustment (AREA)
EP01203618A 2000-09-22 2001-09-24 Pipe system for discharging flue gases Withdrawn EP1191283A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1016246A NL1016246C2 (nl) 2000-09-22 2000-09-22 Buisstelsel voor het doorvoeren van rookgassen.
NL1016246 2000-09-22

Publications (1)

Publication Number Publication Date
EP1191283A1 true EP1191283A1 (en) 2002-03-27

Family

ID=19772128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01203618A Withdrawn EP1191283A1 (en) 2000-09-22 2001-09-24 Pipe system for discharging flue gases

Country Status (2)

Country Link
EP (1) EP1191283A1 (nl)
NL (1) NL1016246C2 (nl)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003104717A2 (fr) * 2002-06-06 2003-12-18 Christopher Luijer Organe de raccordement d’une chaudiere a un conduit d’evacuation
FR2841968A1 (fr) * 2002-07-08 2004-01-09 Christophe Mijndert Hen Luijer Organe d'un raccordement d'une chaudiere a un conduit d'evacuation
EP2577206A2 (en) * 2010-05-26 2013-04-10 Heat Recovery Solutions Limited Heat exchange unit
WO2022033613A1 (en) * 2020-08-10 2022-02-17 Almeva East Europe A.S. Pipe assembly for lining flue gas paths

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603680A (en) 1984-12-10 1986-08-05 Carrier Corporation Furnace inducer outlet box assembly
US4923221A (en) * 1989-01-25 1990-05-08 Cameron Iron Works U.S.A., Inc. Safety connection into passages in a tubular body
DE9111394U1 (de) * 1991-09-13 1992-01-23 Vießmann, Hans, Dr., 3559 Battenberg Rohranschlußbausatz
DE9311424U1 (de) * 1993-07-30 1993-10-21 Skoberne, Willi, 64342 Seeheim-Jugenheim Rohrleitungs-Formstück für Abgasanlagen für Brennwertgeräte
DE20006951U1 (de) * 2000-04-04 2000-07-06 Reitz, Eberhard, 35216 Biedenkopf Rohrstück
DE20022107U1 (de) * 2000-12-30 2001-03-01 REHAU AG + Co., 95111 Rehau Vorrichtung für den Einsatz in Abgasanlagen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2050162B1 (de) * 1970-10-13 1972-03-09 Muecher Hermann Verschluss fuer die blindenden von muffenrohren
GB9514914D0 (en) * 1995-07-20 1995-09-20 Rite Vent Limited Flue junction piece

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603680A (en) 1984-12-10 1986-08-05 Carrier Corporation Furnace inducer outlet box assembly
US4923221A (en) * 1989-01-25 1990-05-08 Cameron Iron Works U.S.A., Inc. Safety connection into passages in a tubular body
DE9111394U1 (de) * 1991-09-13 1992-01-23 Vießmann, Hans, Dr., 3559 Battenberg Rohranschlußbausatz
DE9311424U1 (de) * 1993-07-30 1993-10-21 Skoberne, Willi, 64342 Seeheim-Jugenheim Rohrleitungs-Formstück für Abgasanlagen für Brennwertgeräte
DE20006951U1 (de) * 2000-04-04 2000-07-06 Reitz, Eberhard, 35216 Biedenkopf Rohrstück
DE20022107U1 (de) * 2000-12-30 2001-03-01 REHAU AG + Co., 95111 Rehau Vorrichtung für den Einsatz in Abgasanlagen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003104717A2 (fr) * 2002-06-06 2003-12-18 Christopher Luijer Organe de raccordement d’une chaudiere a un conduit d’evacuation
WO2003104717A3 (fr) * 2002-06-06 2004-04-15 Christopher Luijer Organe de raccordement d'une chaudiere a un conduit d'evacuation
FR2841968A1 (fr) * 2002-07-08 2004-01-09 Christophe Mijndert Hen Luijer Organe d'un raccordement d'une chaudiere a un conduit d'evacuation
EP2577206A2 (en) * 2010-05-26 2013-04-10 Heat Recovery Solutions Limited Heat exchange unit
EP2577206B1 (en) * 2010-05-26 2016-12-14 Heat Recovery Solutions Limited Heat exchange unit
EP3165862A1 (en) * 2010-05-26 2017-05-10 Heat Recovery Solutions Limited Heat exchange unit
US10247487B2 (en) 2010-05-26 2019-04-02 Heat Recovery Solutions Limited Heat exchange unit
WO2022033613A1 (en) * 2020-08-10 2022-02-17 Almeva East Europe A.S. Pipe assembly for lining flue gas paths

Also Published As

Publication number Publication date
NL1016246C2 (nl) 2002-03-25

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