EP3329201B1 - Tube heat exchanger casing - Google Patents

Tube heat exchanger casing Download PDF

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Publication number
EP3329201B1
EP3329201B1 EP16756816.1A EP16756816A EP3329201B1 EP 3329201 B1 EP3329201 B1 EP 3329201B1 EP 16756816 A EP16756816 A EP 16756816A EP 3329201 B1 EP3329201 B1 EP 3329201B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
jacket
casing
heat exchanger
wall
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
EP16756816.1A
Other languages
German (de)
French (fr)
Other versions
EP3329201A1 (en
Inventor
Krzysztof SZCZEPANSKI
Maciej BERNACIAK
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.)
AIC Sp zoo
Original Assignee
AIC Sp zoo
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 AIC Sp zoo filed Critical AIC Sp zoo
Priority to PL16756816T priority Critical patent/PL3329201T3/en
Publication of EP3329201A1 publication Critical patent/EP3329201A1/en
Application granted granted Critical
Publication of EP3329201B1 publication Critical patent/EP3329201B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding

Definitions

  • the invention concerns the casing of a tube heat exchanger.
  • the corrosion resistance and fatigue strength of the welds are far lower than those demonstrated by the material of which the heat exchanger casing is made:
  • the purpose of the invention is to improve the corrosion resistance and fatigue strength of the casing of a heat exchanger.
  • the purpose was achieved by reducing the number of elements bound together with welds, which are most exposed to the potential development of corrosion spots and concentration of mechanical stress.
  • a casing of a tube heat exchanger which, on the top, closes a wall of a combustion chamber placed inside a jacked fitted with openings to accommodate a stub pipes for the supply and discharge of the heated liquid, where the wall of the combustion chamber is shaped to form a container open on the top with its bottom formed to make an upper sieve bottom, the container encased in the jacket, where the jacket is welded on the top to the top section of the combustion chamber wall.
  • the casing is characterised in that there is only one weld in the casing, where the jacket is given the shape of the container open on the top with its bottom formed to make a lower sieve bottom.
  • the structure of the casing according to the invention improves its durability substantially.
  • a casing of the tube heat exchanger joins together, in its top section, a wall 1 of a combustion chamber and a jacket 4 which encases the wall 1 of the combustion chamber with flame pipes fitted under the combustion chamber (not shown on the drawing), where the combustion chamber is shaped to form a container open on the top, with its bottom formed to make the upper sieve bottom 2.
  • Jacket 4 too, is shaped into a container open on the top with the bottom formed to make the lower sieve bottom 5.
  • the wall 1 of the combustion chamber is placed inside the jacket 4, where the wall 1 of the combustion chamber is bound at the top to the top section of jacket 2 with a weld 3.
  • At the bottom of the side wall of jacket 4 there is an opening 7 to accommodate the stub pipe for the supply of the heated liquid, and at its top there is an opening 8 to accommodate the stub pipe for the discharge of the heated liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

  • The invention concerns the casing of a tube heat exchanger.
  • In known tube heat exchangers, there are many welds on the casings in places where individual casing fragments made as separate elements are bound together.
  • The corrosion resistance and fatigue strength of the welds are far lower than those demonstrated by the material of which the heat exchanger casing is made:
    The purpose of the invention is to improve the corrosion resistance and fatigue strength of the casing of a heat exchanger.
  • The purpose was achieved by reducing the number of elements bound together with welds, which are most exposed to the potential development of corrosion spots and concentration of mechanical stress.
  • A casing of a tube heat exchanger which, on the top, closes a wall of a combustion chamber placed inside a jacked fitted with openings to accommodate a stub pipes for the supply and discharge of the heated liquid, where the wall of the combustion chamber is shaped to form a container open on the top with its bottom formed to make an upper sieve bottom, the container encased in the jacket, where the jacket is welded on the top to the top section of the combustion chamber wall. According to the invention, the casing is characterised in that there is only one weld in the casing, where the jacket is given the shape of the container open on the top with its bottom formed to make a lower sieve bottom.
  • The structure of the casing according to the invention improves its durability substantially.
  • Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
  • In the drawings:
    • Fig. 1 shows the casing in isometric projection without the welds in view,
    • Fig. 2 - the casing with a single weld, in axial section;
    • Fig. 3 - the casing in a bird's eye view, without the welds visible.
  • In the embodiment of the invention featuring a single weld, as shown on Fig. 2, a casing of the tube heat exchanger joins together, in its top section, a wall 1 of a combustion chamber and a jacket 4 which encases the wall 1 of the combustion chamber with flame pipes fitted under the combustion chamber (not shown on the drawing), where the combustion chamber is shaped to form a container open on the top, with its bottom formed to make the upper sieve bottom 2. Jacket 4, too, is shaped into a container open on the top with the bottom formed to make the lower sieve bottom 5. The wall 1 of the combustion chamber is placed inside the jacket 4, where the wall 1 of the combustion chamber is bound at the top to the top section of jacket 2 with a weld 3. At the bottom of the side wall of jacket 4 there is an opening 7 to accommodate the stub pipe for the supply of the heated liquid, and at its top there is an opening 8 to accommodate the stub pipe for the discharge of the heated liquid.

Claims (1)

  1. A casing of a tube heat exchanger which, on the top, closes a wall of a combustion chamber placed inside a jacked fitted with openings to accommodate stub pipes for the supply and discharge of the heated liquid, where the wall (1) of the combustion chamber is shaped to form a container open on the top with its bottom formed to make an upper sieve bottom (2), the container encased in the jacket (4), where the jacket (4) is bound on the top with a weld (3) to the top section of the combustion chamber wall, characterised in that there is only one weld in it, where the jacket (4) is given the shape of a container open on the top, with its bottom formed to make a lower sieve bottom (5).
EP16756816.1A 2015-07-05 2016-06-30 Tube heat exchanger casing Active EP3329201B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16756816T PL3329201T3 (en) 2015-07-05 2016-06-30 Tube heat exchanger casing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL413024A PL229351B1 (en) 2015-07-05 2015-07-05 Sheathing of tubular heat exchanger
PCT/PL2016/000071 WO2017007352A1 (en) 2015-07-05 2016-06-30 Tube heat exchanger casing

Publications (2)

Publication Number Publication Date
EP3329201A1 EP3329201A1 (en) 2018-06-06
EP3329201B1 true EP3329201B1 (en) 2019-08-07

Family

ID=56799521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16756816.1A Active EP3329201B1 (en) 2015-07-05 2016-06-30 Tube heat exchanger casing

Country Status (4)

Country Link
EP (1) EP3329201B1 (en)
ES (1) ES2746965T3 (en)
PL (2) PL229351B1 (en)
WO (1) WO2017007352A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180372413A1 (en) 2017-06-22 2018-12-27 Rheem Manufacturing Company Heat Exchanger Tubes And Tube Assembly Configurations

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT247800Y1 (en) * 1999-12-02 2002-09-10 R I Stampi Articoli Ind Di Zen COMPONENT FOR LIQUID / AIR-HEAT EXCHANGER
ITMI20080408A1 (en) * 2008-03-10 2009-09-11 Ferroli Spa HEAT EXCHANGER, PARTICULARLY FOR THERMAL GENERATORS.
US8813688B2 (en) * 2010-12-01 2014-08-26 Aic S.A. Heat exchanger
PL220726B1 (en) * 2011-09-29 2015-12-31 Aic Spółka Akcyjna Heat exchanger for a condensing boiler
KR101504394B1 (en) * 2012-01-19 2015-03-19 최성환 Hot water storage type condensing boiler having multistage structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL229351B1 (en) 2018-07-31
PL3329201T3 (en) 2020-01-31
EP3329201A1 (en) 2018-06-06
ES2746965T3 (en) 2020-03-09
PL413024A1 (en) 2017-01-16
WO2017007352A1 (en) 2017-01-12

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