EP4685411A1 - A sieve element of a tubular heat exchanger and its use in a tubular heat exchanger - Google Patents

A sieve element of a tubular heat exchanger and its use in a tubular heat exchanger

Info

Publication number
EP4685411A1
EP4685411A1 EP24020316.6A EP24020316A EP4685411A1 EP 4685411 A1 EP4685411 A1 EP 4685411A1 EP 24020316 A EP24020316 A EP 24020316A EP 4685411 A1 EP4685411 A1 EP 4685411A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
sieve element
tubular heat
notches
rim
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.)
Pending
Application number
EP24020316.6A
Other languages
German (de)
French (fr)
Inventor
Borys Lukasik
Katarzyna Ronewicz
Marcin Malicki
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
Publication of EP4685411A1 publication Critical patent/EP4685411A1/en
Pending legal-status Critical Current

Links

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
    • F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • F24H1/36—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • 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
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide 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
    • F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/224—Longitudinal partitions
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/226—Transversal partitions

Definitions

  • the invention concerns a sieve element of a tubular heat exchanger and its use in a tubular heat exchanger.
  • tubular heat exchangers In the known tubular heat exchangers, flue tubes placed within a jacket inside of which water flows so as to be heated are fixed in sieve walls. To intensify the flow of the heated water, tubular heat exchangers can be fitted with transverse baffles featuring openings to accommodate the flue tubes. The baffle can contact the jacket wall with its edge, or there can be a peripheral gap formed between the partition and the jacket.
  • a fired heat exchanger comprising a combustion chamber fitted with a sieve bottom and at least one transverse baffle, where the ends of the tube elements are anchored in the sieve bottom of the combustion chamber on the one side, and in the sieve wall on the other side.
  • the heat exchanger comprises a horizontal baffle with a single central opening for the flow of the fluid.
  • a heat exchanger incorporating an external jacket with an internal set of vertical tube elements, where their opposite ends are fixed in the walls of the top and bottom sieves, and where the exchanger is fitted with a gas combustion chamber placed over the top wall of the sieve, as well as baffles mounted transversely with respect to the tube elements.
  • the baffles feature openings for the tube elements.
  • the top wall of the sieve is flat, while the top baffle is given the shape of a cone with its apex pointing down.
  • the top baffle has a central opening in its middle area, and the outer diameter of the baffle corresponds to the diameter of the external jacket.
  • a boiler which incorporates a set of flue tubes arranged in an external jacket in a water chamber. Ends of the combustion pipes are fixed to flat sieve elements.
  • the water chamber features flat transverse baffles in the form of discs with openings for the tubes, where the diameter of the discs is smaller than the inner diameter of the external jacket so that formed between the baffle and the jacket is a gap for the flow of water.
  • the invention solves the problem of uneven distribution of flow of the working medium in a heat exchanger on the other side of the sieve element with respect to the direction of flow of the working medium through the sieve element, it further solves the problem of areas of stagnancy of the working medium which occur in the vortex trail behind the heat exchanger tubes.
  • the purpose of the invention is to solve the above problems.
  • the purpose has been achieved by designing notches in the edge of the sieve element and the shape of the notches for the flow of the working medium, where the notches enable even distribution of flow of the working medium on the other side of the sieve element with respect to the direction of flow of the working medium through the sieve element, it was also achieved by designing the number of the notches and their arrangement.
  • a sieve element of a tubular heat exchanger comprising openings for heat exchanger tubes is characterised in that formed along a rim of the sieve element are notches the edges of which are given an arched shape with arms parting away from each other towards the rim of the sieve element, where the notches are located behind the openings for the heat exchanger tubes situated closest to the rim of the sieve element.
  • the number of the notches is the same as the number of the openings for the heat exchanger tubes which are situated closest to the rim of the sieve element.
  • the arched edge of the notches is given the shape of an elliptical arch.
  • the sieve element according to this invention can be used as the bottom of a combustion chamber of a tubular heat exchanger and/or as a transverse baffle of a tubular heat exchanger.
  • the shape of the notches formed along the rim of the sieve element for the flow of the working medium in a heat exchanger, the number of notches and their arrangement make it possible to achieve even distribution of flow of the working medium on the other side of the sieve element with respect to the direction of flow of the working medium through the sieve element, to increase the velocity of flow of the working medium, and to reduce the area of stagnation of the working medium resulting from the radial flow of the working medium through the heat exchanger.
  • This enables reduction of the dead zone under the sieve element where the working medium gets stagnant, and leads to limiting the areas under the sieve element where boiling of the working medium as the result of its high temperature is highly probable.
  • the solution according to this invention enables minimalisation of the areas characterised by high probability of working medium overheating and its boiling caused by its stagnation, where the boiling affects the durability and service life of the device.
  • An example of a sieve element of a tubular heat exchanger comprises openings 3 for tubes 8 of a heat exchanger, and notches 2 formed along the rim 1 of the sieve element with arched edges 2a having arms 2a' which part away from each other in the direction of the rim 1 of the sieve element.
  • the arched edge 2a can, for example, take the form of an elliptical arch, as shown in Fig. 2 .
  • the said notches 2 are located behind the openings 3 for the tubes of a heat exchanger, situated closest to the rim 1 of the sieve element.
  • the number of notches 2 is equal to the number of openings 3 for the tubes 8 of the heat exchanger which are situated closest to the rim 1 of the sieve element, as shown in Fig. 1 .
  • the sieve element can take different shapes, as appropriate for the specific heat exchanger.
  • the sieve element can serve as the bottom 5 of a combustion chamber 4 of a tubular heat exchanger featuring a water jacket 7 around the combustion chamber 4, where the working medium flows into the water jacket encasing the combustion chamber 4, as shown in Fig. 3 , Fig. 4 , through the notches 2 in the rim 1 of the bottom 5 of the combustion chamber 4 and through the water chamber 9 inside which the flue tubes 8 of the heat exchanger are situated.
  • the sieve element can also serve as a transverse baffle 6 of a tubular heat exchanger, as shown in Fig. 3 .

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)
  • Fluid Mechanics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Sieve element of a tubular heat exchanger, featuring openings for a heat exchanger tubes, characterised in that formed along a rim (1) of the sieve element are notches (2) the edges (2a) of which are given an arched shape, preferably the shape of an elliptical arch, with arms (2a') parting away from each other towards the rim (1) of the sieve element, where the notches (2) are located behind the openings (3) for the heat exchanger tubes situated closest to the rim (1) of the sieve element.

Description

  • The invention concerns a sieve element of a tubular heat exchanger and its use in a tubular heat exchanger.
  • In the known tubular heat exchangers, flue tubes placed within a jacket inside of which water flows so as to be heated are fixed in sieve walls. To intensify the flow of the heated water, tubular heat exchangers can be fitted with transverse baffles featuring openings to accommodate the flue tubes. The baffle can contact the jacket wall with its edge, or there can be a peripheral gap formed between the partition and the jacket.
  • Known from document WO 2017/111636 A1 is a fired heat exchanger comprising a combustion chamber fitted with a sieve bottom and at least one transverse baffle, where the ends of the tube elements are anchored in the sieve bottom of the combustion chamber on the one side, and in the sieve wall on the other side. Moreover, the heat exchanger comprises a horizontal baffle with a single central opening for the flow of the fluid.
  • Known from document US 2012/0138278 A1 is a heat exchanger incorporating an external jacket with an internal set of vertical tube elements, where their opposite ends are fixed in the walls of the top and bottom sieves, and where the exchanger is fitted with a gas combustion chamber placed over the top wall of the sieve, as well as baffles mounted transversely with respect to the tube elements. The baffles feature openings for the tube elements. The top wall of the sieve is flat, while the top baffle is given the shape of a cone with its apex pointing down. The top baffle has a central opening in its middle area, and the outer diameter of the baffle corresponds to the diameter of the external jacket.
  • Known from document WO 2009/078577 A1 is a boiler which incorporates a set of flue tubes arranged in an external jacket in a water chamber. Ends of the combustion pipes are fixed to flat sieve elements. The water chamber features flat transverse baffles in the form of discs with openings for the tubes, where the diameter of the discs is smaller than the inner diameter of the external jacket so that formed between the baffle and the jacket is a gap for the flow of water.
  • The invention solves the problem of uneven distribution of flow of the working medium in a heat exchanger on the other side of the sieve element with respect to the direction of flow of the working medium through the sieve element, it further solves the problem of areas of stagnancy of the working medium which occur in the vortex trail behind the heat exchanger tubes.
  • The purpose of the invention is to solve the above problems.
  • The purpose has been achieved by designing notches in the edge of the sieve element and the shape of the notches for the flow of the working medium, where the notches enable even distribution of flow of the working medium on the other side of the sieve element with respect to the direction of flow of the working medium through the sieve element, it was also achieved by designing the number of the notches and their arrangement.
  • According to the invention, a sieve element of a tubular heat exchanger, comprising openings for heat exchanger tubes is characterised in that formed along a rim of the sieve element are notches the edges of which are given an arched shape with arms parting away from each other towards the rim of the sieve element, where the notches are located behind the openings for the heat exchanger tubes situated closest to the rim of the sieve element.
  • Preferably, the number of the notches is the same as the number of the openings for the heat exchanger tubes which are situated closest to the rim of the sieve element.
  • Preferably, the arched edge of the notches is given the shape of an elliptical arch.
  • The sieve element according to this invention can be used as the bottom of a combustion chamber of a tubular heat exchanger and/or as a transverse baffle of a tubular heat exchanger.
  • The shape of the notches formed along the rim of the sieve element for the flow of the working medium in a heat exchanger, the number of notches and their arrangement make it possible to achieve even distribution of flow of the working medium on the other side of the sieve element with respect to the direction of flow of the working medium through the sieve element, to increase the velocity of flow of the working medium, and to reduce the area of stagnation of the working medium resulting from the radial flow of the working medium through the heat exchanger. This enables reduction of the dead zone under the sieve element where the working medium gets stagnant, and leads to limiting the areas under the sieve element where boiling of the working medium as the result of its high temperature is highly probable. The solution according to this invention enables minimalisation of the areas characterised by high probability of working medium overheating and its boiling caused by its stagnation, where the boiling affects the durability and service life of the device.
  • The invention in its embodiments is shown on a drawing, where:
    • Fig. 1 shows the sieve element viewed from the top;
    • Fig. 2 depicts detail A, as in Fig. 1, in magnification;
    • Fig. 3 presents a heat exchanger incorporating the sieve elements;
    • Fig. 4 shows detail E, as in Fig. 3, in magnification.
  • An example of a sieve element of a tubular heat exchanger comprises openings 3 for tubes 8 of a heat exchanger, and notches 2 formed along the rim 1 of the sieve element with arched edges 2a having arms 2a' which part away from each other in the direction of the rim 1 of the sieve element. The arched edge 2a can, for example, take the form of an elliptical arch, as shown in Fig. 2. The said notches 2 are located behind the openings 3 for the tubes of a heat exchanger, situated closest to the rim 1 of the sieve element. The number of notches 2 is equal to the number of openings 3 for the tubes 8 of the heat exchanger which are situated closest to the rim 1 of the sieve element, as shown in Fig. 1.
  • The sieve element can take different shapes, as appropriate for the specific heat exchanger.
  • The sieve element can serve as the bottom 5 of a combustion chamber 4 of a tubular heat exchanger featuring a water jacket 7 around the combustion chamber 4, where the working medium flows into the water jacket encasing the combustion chamber 4, as shown in Fig. 3, Fig. 4, through the notches 2 in the rim 1 of the bottom 5 of the combustion chamber 4 and through the water chamber 9 inside which the flue tubes 8 of the heat exchanger are situated. The sieve element can also serve as a transverse baffle 6 of a tubular heat exchanger, as shown in Fig. 3.
    • List of numerical references
    • 1 - rim of the sieve element
    • 2 - notches for the flow of the working medium
    • 2a - edge of the notch for the flow of the working medium
    • 2a' - arms of the edge of the notch for the flow of the working medium
    • 3 - openings for the tubes of a heat exchanger
    • 4 - combustion chamber of a tubular heat exchanger
    • 5 - bottom of the combustion chamber of a tubular heat exchanger
    • 6 - transverse baffle of a tubular heat exchanger
    • 7 - water jacket of a tubular heat exchanger
    • 8 - tubes of a heat exchanger
    • 9 - water chamber of a heat exchanger

Claims (5)

  1. A sieve element of a tubular heat exchanger, comprising openings for heat exchanger tubes, characterised in that formed along a rim (1) of the sieve element are notches (2) the edges (2a) of which are given an arched shape with arms (2a') parting away from each other towards the rim (1) of the sieve element, where the notches (2) are located behind the openings (3) for the heat exchanger tubes situated closest to the rim (1) of the sieve element.
  2. The sieve element according to claim 1, characterised in that the number of the notches (2) is the same as the number of the openings (3) for the heat exchanger tubes which are situated closest to the rim (1) of the sieve element.
  3. The sieve element according to claim 1 or 2, characterised in that the arched edge (2a) of the notches (2) is given the shape of an elliptical arch.
  4. Use of the sieve element according to any one of the claims 1 to 3 as the bottom (5) of a combustion chamber (4) of a tubular heat exchanger.
  5. Use of the sieve element according to any one of the claims 1 to 4 as a transverse baffle (6) of a tubular heat exchanger.
EP24020316.6A 2024-07-22 2024-10-15 A sieve element of a tubular heat exchanger and its use in a tubular heat exchanger Pending EP4685411A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL449286A PL449286A1 (en) 2024-07-22 2024-07-22 The sieve element of a tubular heat exchanger and its application in a tubular heat exchanger

Publications (1)

Publication Number Publication Date
EP4685411A1 true EP4685411A1 (en) 2026-01-28

Family

ID=93590867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24020316.6A Pending EP4685411A1 (en) 2024-07-22 2024-10-15 A sieve element of a tubular heat exchanger and its use in a tubular heat exchanger

Country Status (3)

Country Link
US (1) US20260022901A1 (en)
EP (1) EP4685411A1 (en)
PL (1) PL449286A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009078577A1 (en) 2007-12-14 2009-06-25 Kyungdong Navien Co., Ltd. Boiler for improving heat exchanging property
US20120138278A1 (en) 2010-12-01 2012-06-07 Aic S.A. Heat Exchanger
KR20130140943A (en) * 2012-05-15 2013-12-26 대성산업 주식회사 Condensing Heat Exchanger and Boiler Containing It
WO2017111636A1 (en) 2015-12-21 2017-06-29 Aic S.A. Fired heat exchanger
US20190360756A1 (en) * 2016-01-21 2019-11-28 Fulton Group N.A., Inc. Heat exchanger baffle assembly and tube pattern for radial flow heat exchanger and fluid heating system including the same
US20210190376A1 (en) * 2019-12-23 2021-06-24 Bruce Hotton Baffles For Thermal Transfer Devices
US20220163235A1 (en) * 2014-04-22 2022-05-26 Young-Hwan Choi Heat exchanger having circulation guide
EP4215835A1 (en) * 2022-01-23 2023-07-26 Aic Spólka Akcyjna A bi-functional electric boiler

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10451365B2 (en) * 2017-06-02 2019-10-22 Rheem Manufacturing Company Tube sheets and tube sheet assemblies
CN213021123U (en) * 2020-08-30 2021-04-20 佛山市阁林科尔机械有限公司 Full-sliding oil-moving inner-core type heat exchanger
PL244327B1 (en) * 2022-01-05 2024-01-08 Aic Spolka Akcyjna Hybrid boiler

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009078577A1 (en) 2007-12-14 2009-06-25 Kyungdong Navien Co., Ltd. Boiler for improving heat exchanging property
US20120138278A1 (en) 2010-12-01 2012-06-07 Aic S.A. Heat Exchanger
KR20130140943A (en) * 2012-05-15 2013-12-26 대성산업 주식회사 Condensing Heat Exchanger and Boiler Containing It
US20220163235A1 (en) * 2014-04-22 2022-05-26 Young-Hwan Choi Heat exchanger having circulation guide
WO2017111636A1 (en) 2015-12-21 2017-06-29 Aic S.A. Fired heat exchanger
US20190360756A1 (en) * 2016-01-21 2019-11-28 Fulton Group N.A., Inc. Heat exchanger baffle assembly and tube pattern for radial flow heat exchanger and fluid heating system including the same
US20210190376A1 (en) * 2019-12-23 2021-06-24 Bruce Hotton Baffles For Thermal Transfer Devices
EP4215835A1 (en) * 2022-01-23 2023-07-26 Aic Spólka Akcyjna A bi-functional electric boiler

Also Published As

Publication number Publication date
US20260022901A1 (en) 2026-01-22
PL449286A1 (en) 2026-01-26

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