WO2022182302A1 - Plaque de régulation de flux de gaz d'échappement pour échangeur de chaleur - Google Patents

Plaque de régulation de flux de gaz d'échappement pour échangeur de chaleur Download PDF

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Publication number
WO2022182302A1
WO2022182302A1 PCT/TR2021/050172 TR2021050172W WO2022182302A1 WO 2022182302 A1 WO2022182302 A1 WO 2022182302A1 TR 2021050172 W TR2021050172 W TR 2021050172W WO 2022182302 A1 WO2022182302 A1 WO 2022182302A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate assembly
plate
plate body
cap
gas
Prior art date
Application number
PCT/TR2021/050172
Other languages
English (en)
Inventor
Emrecan TANKUT
Umut ARSLAN
Yalcin OTER
Original Assignee
Emas Makina Sanayi Anonim Sirketi
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 Emas Makina Sanayi Anonim Sirketi filed Critical Emas Makina Sanayi Anonim Sirketi
Priority to PCT/TR2021/050172 priority Critical patent/WO2022182302A1/fr
Publication of WO2022182302A1 publication Critical patent/WO2022182302A1/fr

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
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
    • 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
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • 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
    • F24H9/0026—Guiding means in combustion gas 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
    • F28D7/02—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 helically coiled
    • F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • 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
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0026—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for combustion engines, e.g. for gas turbines or for Stirling engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/02—Streamline-shaped elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the present invention relates to a flow regulating plate which is used in the heat exchangers during discharge of the burnt gas, and which aims to reduce pressure drop and to prevent direct passage of rain and condensation water into the burner.
  • heat exchangers that are used to transfer the heat of the burning gas to the liquid.
  • the said heat exchangers essentially consist of an outer body comprising a gas mixture inlet, a burner and a discharge hole for the discharge of the burnt gas, and a helical pipe in which liquid circulates.
  • the burnt gas is discharged from the exchanger to the chimney and outside from there.
  • configurations with and without plates at the burnt gas outlet are used especially in order to remove the burnt gas from the system. In the configurations without plate, the gas exiting the combustion chamber passes through the helical pipes and moves towards the chimney without being guided further.
  • the first plate structure is configurations which prevents the discharged gases from entering the combustion chamber again without any guidance.
  • the gas flow is not regulated with the use of a plate without a directing feature, and it is only used to separate the said combustion chamber from the collecting chamber located at the rear part of the heat exchanger. Therefore, especially when the gas inside the combustion chamber and burning in a region closer to the front cover of the gas exiting the burner is examined; the said burnt gas will have to move more distance than burnt gas closer to the rear part. This situation will cause the pressure drop to be higher. Furthermore, this pressure drop causes the fan speed to increase.
  • German patent application no DE10026549 known in the state of the art, relates to a gas burner without a plate in a gas inlet and burnt gas outlet duct from the heat exchanger. There is no plate structure for directing the burnt gas in the said document.
  • the Turkish patent application no 2019/02083 an application known in the state of the art, comprises a helically shaped tubular structure, a gas inlet, and a burnt gas outlet and there is an inclined plate between the burnt gas outlet and the outlet duct.
  • the plate structure used in the said application causes the gas to move a long way around it and this situation causes pressure drops and therefore the pressure drop causes the fan speed to increase.
  • the plate structure described in the application no TR2020/050055 in the state of the art is flow regulation plate which enables homogeneous distribution of the burnt gases in the combustion chamber.
  • the plate which provides homogeneous distribution, enables the burnt gas to be directed to the discharge hole in order that the burnt gas exits the system, especially in the area close to the peak where the curvature is maximum as it is seen in Figure 1, and the gas travels a relatively long distance during this direction. Because, the burnt gas is directed towards the openings provided on both sides of the plate from the area close to the peak where the curvature is maximum. This situation causes pressure drops as previously described. Furthermore, even though the pressure drop stated in the configuration of the document no TR2020/050055 was decreased compared to the configuration in the document no EP2984415, the said pressure drop amount was enabled to be further decreased with the configuration in the present invention.
  • the main objective of the present invention is to provide a flow regulating plate for heat exchangers which is used in the heat exchangers during discharge of the burnt gas and which decreases the fan speed by minimizing the pressure drop and thereby reducing the energy consumption.
  • Another objective of the present invention is to provide a flow regulating plate for heat exchangers, which prevents the direct passage of rain and condensation water from outside into the combustion chamber, at the burnt gas outlet part in the heat exchangers.
  • a further objective of the present invention is to provide a flow regulating plate for heat exchangers which reduces/completely eliminates the turbulence and vortexes seen in the gases transferred from the rear collection area to the chimney in the heat exchangers of the current art, and thereby providing a quieter operating condition.
  • Yet another objective of the present invention is to provide a flow regulating plate for heat exchangers which does not require using the rear collection area provided in the current art, and thereby providing formation of a more compact heat exchanger.
  • Figure 1 is the front sectional view of the heat exchanger in the prior art application no. TR2020/050055.
  • Figure 2 is the perspective view of flow regulating plate for the heat exchangers of the present invention, on the sectioned heat exchanger.
  • Figure 3 is the front view of the flow regulating plate for the heat exchangers of the present invention, on the sectioned heat exchanger.
  • Figure 4 is the top perspective view of the flow regulating plate for the heat exchangers of the present invention.
  • Figure 5 is the side perspective view of the flow regulating plate for the heat exchangers of the present invention.
  • Figure 6 is the front view of the flow regulating plate for the heat exchangers of the present invention.
  • a plate assembly (1) which is used in heat exchangers by being mounted on the burnt gas outlet and which ensures that the gas pressure drop is at minimum level and which directs the gas, comprises at least one plate body (2) which partially or completely covers a burnt gas outlet part (hole) in the heat exchangers, at least one opening (3) which is provided on the plate body (2) and which is in the form of a hole for the burnt gas in the heat exchanger to reach the chimney by passing therethrough, at least one cap (4) which partially covers the opening (3).
  • a heat exchanger (100) used in gas burning devices such as combi boilers comprises a body (101) comprising a gas inlet hole or burner and a gas outlet hole (discharge) (102) thereon and a preferably helical pipe (103) located inside the body; and a plate assembly (1) which enables the gas pressure drop to be at minimum level and which directs the gas and which is comprised of
  • the said plate assembly (1) can be fixed inside the heat exchanger or it can be mounted in the heat exchanger (100) later.
  • the said plate assembly (1) is positioned/fixed on the gas discharge outlet hole (102) in the heat exchanger (100) such that it will completely or partially cover the outlet hole.
  • the burnt gas coming onto the plate assembly (1) passes through the hole-shaped opening/openings (3) located thereon and in this way it is directed towards the chimney without needing to move around the plate. In this way, it is ensured that the burnt gas follows minimum path. This enables the pressure drop caused by the excessive travel path of the gas to be decreased to a minimum level and thus the energy consumption to be decreased by means of reducing the fan speed compared to the current art.
  • the plate assembly (1) of the present invention comprises a plate body (2), which is in the form of a plate and which has a shape to cover the gas outlet hole (102) in the heat exchanger (100); and there is at least one hole- shaped opening (3) on the plate body (2).
  • the burnt gas in the heat exchanger is directed over the plate body (2) and exits through the gas outlet hole (102) from the opening/openings (3) located on the said plate body (2).
  • the openings (3) provided on the plate assembly (1) facilitate the passage of the burnt gases into the gas outlet hole (102) thanks to the fact that they are an addition to the symmetrical openings in the current art, and the burnt gases are enabled to be discharged from the system homogeneously without accumulating in the chamber or creating reverse flow.
  • the state meant with reverse flow is the state where the gases, which are trying to exit the system from the area close to the peak where the observed curvature is maximum in the flow-directed plates in the current art, move towards the symmetrical openings located at the lower point in order to exit the said system.
  • the state of reverse flow is eliminated by means of the opening (3) members provided in the configuration of the present invention. Thanks to a more homogeneous distribution of the burnt in the chamber, the pressure drop value is enabled to be lower, and therefore the suction fan operates at lower speed and energy consumption is reduced.
  • a cap (4) member which extends over the holes on the plate body (2) and thereby preventing the said undesired water from directly entering into the combustion chamber.
  • the cap (4) extends over the hole around the holes on the plate body (2) and prevents the direct entry of liquid (rain water, condensation water, etc.) or foreign substances into the system from the chimney part above the holes.
  • the cap (4) extending over the hole is larger than the size of the opening (3) (preferably longitudinally) in order to prevent condensation water or rain water from entering the combustion chamber. In this way, the incoming rain or condensation water hits on the cap (4) member and does not directly pass through the opening (3).
  • the cap (4) firstly extends over the plate body (2) at a right angle or an angle close to right angle and then extends in a direction parallel to the plate body (2).
  • the cap (4) extends directly angular over the opening (3) without extending over the plate body (2) at a right angle or an angle close to right angle.
  • the cap (4) covers the opening (3) such that at least one side of it will be open and only allows the passage of burnt gas from one direction. Therefore, the burnt gas is enabled to be directed.
  • the cap (4) comprises two symmetrical open parts (gas outlet holes) and the gas can exit from these openings in different directions.
  • the cap (4) and the plate body (2) are one-piece (single -piece), and the cap (4) is formed by removing the plate body (2) located on the opening (3) to form openings (3).
  • the cap (4) is formed by mounting on the plate body (2) as a separate piece.
  • the opening (3) is in the form of a drop hole.
  • the opening (3) is rectangular, fully round, elliptical, triangle, square or of a shape with a new geometry comprising the combinations of the said shapes.
  • the cap (4) member is in the form of a drop compatible with the drop hole structure.
  • the cap (4) member is rectangular, fully round, elliptical, triangle, square or of a shape with a new geometry comprising the combinations of the said shapes.
  • the plate body (2) is in the form of a spring.
  • the openings (3) are located especially in the area near the peak where the curvature is maximum. In this way, it is ensured that the burnt gas moves away from the system by enabling it to follow minimum path and the pressure drop to be minimum.
  • the plate body (2) is in the form of a flat plate or a polygon.
  • the mounting connection (5) located on the plate body (2) and used for mounting the plate body (2) inside the heat exchanger.
  • the mounting connection (5) is in the form of a socket into which the connection member (screw, bolt, etc.) will fit.
  • the mounting connection (5) is located on the edge part/parts of the plate body (2).
  • the said heat exchanger is a full condensing heat exchanger with an acoustic regulator.
  • the said additional chamber (104) is formed on the gas outlet hole (102) or on the chimney and the plate assembly (1) is placed thereon. The burnt gas coming from the openings/openings on the plate assembly (1) fills into the chamber and exits from the additional chamber through the gas outlet hole (102).

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  • 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

La présente invention concerne un échangeur de chaleur qui comprend un corps comprenant un orifice d'entrée de gaz ou un brûleur et une sortie de gaz (évacuation) sur celui-ci et un tuyau de préférence hélicoïdal situé à l'intérieur dudit corps ; et comprend au moins un ensemble plaque (1) qui permet de maintenir à un niveau minimum la chute de pression de gaz au moyen de la direction du gaz brûlé de manière homogène et comprend un corps de plaque (2) qui recouvre partiellement ou complètement l'orifice de sortie de gaz brûlé et qui est constitué d'au moins une ouverture (3) sous la forme d'un orifice situé sur ledit corps de plaque (2) et permettant au gaz brûlé dans l'échangeur de chaleur d'atteindre la cheminée en passant à travers celle-ci.
PCT/TR2021/050172 2021-02-25 2021-02-25 Plaque de régulation de flux de gaz d'échappement pour échangeur de chaleur WO2022182302A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2021/050172 WO2022182302A1 (fr) 2021-02-25 2021-02-25 Plaque de régulation de flux de gaz d'échappement pour échangeur de chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2021/050172 WO2022182302A1 (fr) 2021-02-25 2021-02-25 Plaque de régulation de flux de gaz d'échappement pour échangeur de chaleur

Publications (1)

Publication Number Publication Date
WO2022182302A1 true WO2022182302A1 (fr) 2022-09-01

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Application Number Title Priority Date Filing Date
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04113167A (ja) * 1990-09-04 1992-04-14 Sanyo Electric Co Ltd 給湯機
EP2984415A1 (fr) * 2014-03-17 2016-02-17 Condevo S.p.A. Cellule d'échange de chaleur et procédé
GB2544556A (en) * 2015-11-23 2017-05-24 The Gas Saving Company Ltd A flue gas heat recovery device, a method of manufacture of a flue gas heat recovery device and an improved heat exchanger
US20170328597A1 (en) * 2016-05-12 2017-11-16 Rinnai Corporation Combustion apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04113167A (ja) * 1990-09-04 1992-04-14 Sanyo Electric Co Ltd 給湯機
EP2984415A1 (fr) * 2014-03-17 2016-02-17 Condevo S.p.A. Cellule d'échange de chaleur et procédé
GB2544556A (en) * 2015-11-23 2017-05-24 The Gas Saving Company Ltd A flue gas heat recovery device, a method of manufacture of a flue gas heat recovery device and an improved heat exchanger
US20170328597A1 (en) * 2016-05-12 2017-11-16 Rinnai Corporation Combustion apparatus

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