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WO2013172577A1 - Échangeur thermique comprenant des ailettes et un tube - Google Patents

Échangeur thermique comprenant des ailettes et un tube Download PDF

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Publication number
WO2013172577A1
WO2013172577A1 PCT/KR2013/003796 KR2013003796W WO2013172577A1 WO 2013172577 A1 WO2013172577 A1 WO 2013172577A1 KR 2013003796 W KR2013003796 W KR 2013003796W WO 2013172577 A1 WO2013172577 A1 WO 2013172577A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
heat exchanger
burner
heat
combustion gas
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.)
Ceased
Application number
PCT/KR2013/003796
Other languages
English (en)
Korean (ko)
Inventor
민태식
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.)
Kyungdong Navien Co Ltd
Original Assignee
Kyungdong Navien Co Ltd
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 Kyungdong Navien Co Ltd filed Critical Kyungdong Navien Co Ltd
Publication of WO2013172577A1 publication Critical patent/WO2013172577A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F28D7/1615—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 the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
    • F28D7/1623—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 the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/06—Heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins

Definitions

  • the present invention relates to a heat exchanger comprising a fin and a tube, and more particularly, to a heat exchanger for preventing direct contact with a combustion gas at a lower end of a tube located on an inflow side of a combustion gas, And a heat exchanger comprising a fin and a tube for preventing boiling noise caused by solidification and deposition of foreign substances contained in the heating water.
  • a boiler uses a burner to generate a high-temperature combustion gas by burning a fuel, and a tube is installed in the space where the combustion gas is supplied to allow water to flow through the inside of the tube, And supplies heating water or hot water by heating.
  • FIG. 1 is a view schematically showing a configuration of a conventional gas boiler.
  • a conventional gas boiler includes a heat exchanger 10 composed of a tube 11 in which heating water flows along the inside thereof and a fin 12 coupled to an outer surface of the tube 11 to secure a wide heat transfer area,
  • a circulation pump 40 provided on the flow path of the heating water for forced circulation of the heating water, a circulation pump 40 for circulating the heating water in the heat exchanger 10, (50) for switching the flow path of the heating water so as to supply the heating water to the heating destination through the heating water supply pipe (81) or selectively supply the heating water to the hot water heat exchanger (60) side through the bypass pipe (83)
  • a hot water heat exchanger (60) through which a direct water pipe (84) and a hot water pipe (85) pass to heat the direct water using the heat of the heating water supplied through the bypass pipe (83)
  • the heating water that is returned through the heating water water return pipe 82 through the water path, Is recovered can be circulated through the heating (83) is configured to include an expansion tank 70 to be stored.
  • FIG. 3 is a side view of the fin constituting the heat exchanger shown in Fig. 1
  • Fig. 4 is a view showing a tube coupled to the fin shown in Fig. 3; Fig. Side view.
  • the conventional heat exchanger 10 is made of a metal such as copper or aluminum and has a heat transfer area between the tube 11 through which the heating water passes and the combustion gas transferred to the tube 11 is increased to increase the thermal efficiency
  • a fin-tube type heat exchanger 10 composed of a plurality of fins 12 coupled to the outer surface of the harmful tube 11 at regular intervals is widely used.
  • a tube insertion hole 14 into which the tube 11 is inserted is formed in the pin 12 and a rib which protrudes at a predetermined height in the longitudinal direction of the tube 11 13 are formed in the tube insertion hole 14 and the tube 11 is coupled to the tube insertion hole 14 by press fitting or welding.
  • the tube 11 is inserted into the tube insertion hole 14 of the fin 12 so that the outer surface of the tube 11 is in contact with the inner surface of the rib 13
  • the combustion gas including the flame is directly brought into contact with the lower end portion 11a of the tube 11 located on the side where the combustion gas generated by the burning of the burner 30 is introduced,
  • the lower end portion 11a of the tube 11 is locally overheated so that the foreign substances such as the lime water contained in the heating water passing through the inside of the tube 11 are superheated due to overheating,
  • the deposit 15 is deposited on the lower end 11a of the boiler 11 and boiling noise is generated during operation of the boiler.
  • the present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a burner which is capable of preventing overheating of a lower end of a tube located on a combustion gas inflow side of a burner by direct contact with a combustion gas, To prevent the boiling noise caused by the deposition of the boiler and to enable quiet operation of the boiler.
  • the heat exchanger of the present invention comprises a tube 110 in which heating water flows and a tube insertion hole 140 into which the tube 110 is inserted, A plurality of fins 120 formed around the tube insertion hole 140 and formed with ribs 130 protruding at a predetermined height in the longitudinal direction of the tube 110 and coupled to the outer surface of the tube 110 at regular intervals,
  • the heat exchanger is composed of a fin and a tube for transferring the heat of combustion of the burner 30 to the heating water flowing in the tube 110.
  • the heat exchanger includes a tube 110 disposed on the side where the combustion gas of the burner 30 flows, A space between the lower end 110a of the tube 110 and the rib 130 is formed around the lower end 110a of the tube 110 to prevent direct contact of the combustion gas with the lower end 110a of the tube 110.
  • the heat insulating chamber 150 is formed.
  • the pitch L1 between the fins 120 adjacent to the outer surface of the tube 110 and the protruded height L2 of the rib 130 are the same.
  • the ribs 130 are formed in a rectangular shape extending in a direction parallel to the direction of the flow of the combustion gas of the burner 30.
  • the ribs 130 are formed in the tube 110 except for the lower end 110a of the tube 110, A tube coupling part 131 which is coupled to the outer side surface of the body part 110b of the tube coupling part 131 so as to be in contact with the inner side surface of the tube coupling part 131, And an extension part 132 extending from the lower end part to form the heat insulating chamber 150.
  • the tube 110 has a rectangular cross-sectional structure corresponding to the outer surface of the tube 110.
  • the extension 132 has a circular arc shape surrounding the lower end 110a of the tube 110 Sectional structure.
  • the combustion heat generated in the burner 30 is transferred to the lower end portion 110a of the tube 110 in a convective manner through the expansion portion 132 and the heat insulating chamber 150,
  • the tube 110 is prevented from being overheated due to heat conduction to the body portion 110b of the tube 110 through the tube 110 to prevent the lower end 110a of the tube 110 from being overheated, And solidification and boiling noise due to deposition are prevented.
  • the heat insulating chamber for preventing the combustion gas of the burner from coming into direct contact with the lower end of the tube is formed around the lower end of the tube located on the side where the combustion gas of the burner is introduced
  • FIG. 1 is a schematic view showing the construction of a conventional gas boiler
  • FIG. 2 is a front sectional view of the heat exchanger shown in FIG. 1,
  • FIG. 3 is a side view of the fin constituting the heat exchanger shown in FIG. 1;
  • FIG. 4 is a side view showing a tube coupled to the pin shown in FIG. 3,
  • FIG. 5 is a front sectional view of a heat exchanger composed of a fin and a tube according to the present invention
  • Fig. 6 is a side view of the fin constituting the heat exchanger shown in Fig. 5,
  • FIG. 7 is a side view showing a tube coupled to the pin shown in FIG. 5;
  • Tube insertion hole 15 Deposition
  • blower 30 burner
  • circulation pump 50 three sides
  • Heating water supply pipe 82 Heating water supply pipe
  • bypass pipe 84 direct water pipe
  • tube 110a lower end of the tube
  • extension part 140 tube insertion hole
  • FIG. 5 is a front sectional view of a heat exchanger constructed of a fin and a tube according to the present invention
  • FIG. 6 is a side view of a fin constituting the heat exchanger shown in FIG. 5,
  • the heat exchanger 100 includes a plurality of tubes 110 spaced apart from each other at regular intervals and having a heating water flowing along the inside thereof and a heat transfer area of the combustion gas generated by the burning of the burner 30
  • Tube type heat exchanger comprising a plurality of fins (120) coupled to the outer surface of the tube (110) at regular intervals along the longitudinal direction of the tube (110)
  • the heat insulating chamber 150 is formed to prevent the lower end portion 110a of the tube 110 located on the inflow side of the heat exchanger 110 from being overheated by direct contact with the combustion gas.
  • the length of the side of the tube 110 parallel to the direction of flow of the combustion gas is long and the length of the sides of the inflow side and the discharge side of the combustion gas are formed to be short to form a substantially rectangular cross sectional structure. And the like.
  • the pin 120 is formed with a tube insertion hole 140 into which the tube 110 is inserted and a rib 130 is formed around the tube insertion hole 140 along the longitudinal direction of the tube 110 And a height L2.
  • a pitch L1 between the pin 120 and the pin 120 which are adjacent to the outer surface of the tube 110 is formed to have the same length as the protruded height L2 of the rib 130, And the ribs 130 are connected to each other.
  • the combustion heat of the combustion gas generated by the ignition of the burner 30 is transferred to the tube 110 via the fin 120 and the rib 130.
  • the rib 130 includes a tube coupling part 131 having a rectangular cross-sectional structure and an extension part 132 having an arc-shaped cross-sectional structure integrally connected to the tube coupling part 131.
  • the tube 110 may be divided into a lower end portion 110a located on the inflow side of the combustion gas facing the burner 30 and a body portion 110b excluding the lower end portion 110a,
  • the inner surface of the tube 131 is in contact with the outer surface of the body portion 110b of the tube 110 and is coupled by press fitting or welding, and the extension portion 132 is formed around the lower end portion 110a of the tube 110
  • an outer side surface of the lower end portion 110a of the tube 110 and an inner side surface of the expansion portion 132 are extended from the lower end of the tube coupling portion 131 so as to be spaced apart from each other, (150) is formed.
  • the extension portion 132 is formed in an arc shape that is a part of a circular shape in cross section, but is not limited to this shape, and is formed to be spaced apart from the lower end portion 110a of the tube 110 to form an empty space
  • the structure can be modified into various other shapes.
  • the heat of combustion of the combustion gas generated in the burner 30 and transferred to the fin 120 and the rib 130 is generated by the tube 110
  • the body 110b of the tube 110 is connected to the lower end 110a of the tube 110 through a tube coupling part 131 in a conductive manner through the extension part 132 and the heat insulating chamber 150 Heat is transferred.
  • the flame and the combustion gas of the burner 30 are prevented from directly contacting the lower end portion 110a of the tube 110 by the heat insulating chamber 150 and the lower end portion 110a of the tube 110 is prevented from contacting with the heat insulating chamber 150 It is possible to prevent the lower end portion 100a of the tube 110 from being overheated when the burner 30 is burned, It is possible to solve the problem that boiling noise occurs due to solidification and deposition of foreign substances as the solubility decreases due to the local overheating of the heating water flowing in the inside of the internal combustion engine.
  • the heat insulating chamber 150 is formed between the lower end 110a of the tube 110 and the extension 132 of the rib 130 and the pitch L1 between the pins 120 and the rib 130
  • the protruded height L2 of the tube 110 has the same length so that the pins 120 and the ribs 130 are positioned in the entire outer surface of the tube 110.

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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)
  • Water Supply & Treatment (AREA)
  • Geometry (AREA)
  • Details Of Fluid Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
PCT/KR2013/003796 2012-05-18 2013-05-02 Échangeur thermique comprenant des ailettes et un tube Ceased WO2013172577A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120053063A KR101392241B1 (ko) 2012-05-18 2012-05-18 핀과 튜브로 구성된 열교환기
KR10-2012-0053063 2012-05-18

Publications (1)

Publication Number Publication Date
WO2013172577A1 true WO2013172577A1 (fr) 2013-11-21

Family

ID=49583945

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/003796 Ceased WO2013172577A1 (fr) 2012-05-18 2013-05-02 Échangeur thermique comprenant des ailettes et un tube

Country Status (2)

Country Link
KR (1) KR101392241B1 (fr)
WO (1) WO2013172577A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102876114B1 (ko) * 2021-03-03 2025-10-24 주식회사대한기계 식품조리용 오일 가열장치
KR102479712B1 (ko) * 2021-04-27 2022-12-21 주식회사대한기계 식품조리용 오일 가열장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990047599A (ko) * 1997-12-05 1999-07-05 김진곤 보일러의 열교환기
JP2000193323A (ja) * 1998-12-25 2000-07-14 Matsushita Electric Ind Co Ltd 熱交換器を備えた燃焼装置
JP2003083618A (ja) * 2001-09-07 2003-03-19 Matsushita Electric Ind Co Ltd 熱交換器
JP2008121934A (ja) * 2006-11-09 2008-05-29 Nichirin Co Ltd プレートフィンチューブ熱交換器およびその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990047599A (ko) * 1997-12-05 1999-07-05 김진곤 보일러의 열교환기
JP2000193323A (ja) * 1998-12-25 2000-07-14 Matsushita Electric Ind Co Ltd 熱交換器を備えた燃焼装置
JP2003083618A (ja) * 2001-09-07 2003-03-19 Matsushita Electric Ind Co Ltd 熱交換器
JP2008121934A (ja) * 2006-11-09 2008-05-29 Nichirin Co Ltd プレートフィンチューブ熱交換器およびその製造方法

Also Published As

Publication number Publication date
KR20130128899A (ko) 2013-11-27
KR101392241B1 (ko) 2014-05-07

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