EP3287696A1 - Chaudière au mazout comportant un guide de trajectoire de gaz de combustion - Google Patents

Chaudière au mazout comportant un guide de trajectoire de gaz de combustion Download PDF

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Publication number
EP3287696A1
EP3287696A1 EP16773490.4A EP16773490A EP3287696A1 EP 3287696 A1 EP3287696 A1 EP 3287696A1 EP 16773490 A EP16773490 A EP 16773490A EP 3287696 A1 EP3287696 A1 EP 3287696A1
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EP
European Patent Office
Prior art keywords
combustion gas
burner
combustion
guide plate
guide
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.)
Granted
Application number
EP16773490.4A
Other languages
German (de)
English (en)
Other versions
EP3287696B1 (fr
EP3287696A4 (fr
Inventor
Chang Kyu Choi
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 EP3287696A1 publication Critical patent/EP3287696A1/fr
Publication of EP3287696A4 publication Critical patent/EP3287696A4/fr
Application granted granted Critical
Publication of EP3287696B1 publication Critical patent/EP3287696B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
    • F23M9/06—Baffles or deflectors for air or combustion products; Flame shields in fire-boxes
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • 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
    • 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
    • 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
    • F24H9/0031—Guiding means in combustion gas channels with means for changing or adapting the path of the flue gas

Definitions

  • the present invention relates to an oil-fired boiler having a combustion gas path guide, and more particularly, to an oil-fired boiler having a combustion gas path guide capable of preventing generation of bubbles and improving efficiency by preventing a combustion gas generated in a burner from being concentrated on a fire tube support plate to which a fire tube is coupled.
  • Boilers that are widely used as a heating and hot water installation in a general household are classified according to various criteria such as fuel used to heat heating water, positions of a heat source and a burner, and the like. That is, boilers are classified into oil-fired boilers and gas boilers according to fuel for use, and the oil-fired boilers use diesel or kerosene as fuel, and the gas boilers use liquefied petroleum gas (LPG) or liquefied natural gas (LNG) as fuel. Also, boilers are classified into general boilers that perform heat exchange by only a heat source (sensible heat) generated from fuel combustion, and condensing boilers that additionally perform heat exchange by latent heat of condensation generated from a sensible heat exchanger.
  • LPG liquefied petroleum gas
  • LNG liquefied natural gas
  • boilers are classified into upward combustion type boilers in which a burner is positioned at a lower portion of the boiler and downward combustion type boilers in which a burner is positioned at an upper portion of the boiler.
  • FIG. 1 illustrates a typical downward combustion type general oil-fired boiler.
  • a burner 15 is provided at an upper portion of a boiler, and a combustion chamber 10 is formed below the burner 15. Combustion is performed inside the combustion chamber 10 by a flame generated in the burner 15.
  • a plurality of fire tubes 12 are provided below the combustion chamber 10 and form a heat exchanger, wherein a combustion gas passes inside the plurality of fire tubes 12.
  • Upper end portions of the fire tubes 12 are fixedly installed at a first fire tube support plate 13, and lower end portions thereof are fixedly installed at a second fire tube support plate 14.
  • a boiler body 11 configured to form an outer body of the boiler is provided outside each of the combustion chamber 10 and the fire tube 12.
  • a space between the boiler body 11 and the combustion chamber 10 and a space between the boiler body 11 and the fire tube 12 become a water tank 30 in which heating water is filled.
  • a hot water coil 20 is provided in the space between the boiler body 11 and the combustion chamber 10.
  • the hot water coil 20 is wound around a circumference of the combustion chamber 10.
  • the water filled in the water tank 30 is heated through heat exchange with the fire tube 12 and then is supplied to a place to be heated.
  • Korean Patent Registration No. 10-1504394 As prior art for solving such problems, Korean Patent Registration No. 10-1504394 is disclosed.
  • upper and lower end plates are provided, each configured in a multistage form and having a height that increases toward an outside portion farthest from the flame.
  • the upper and lower end plates are complicated in form and are difficult to manufacture, and even though the manufacturing is possible, manufacturing costs are high.
  • the present invention is directed to providing an oil-fired boiler having a combustion gas path guide capable of improving thermal efficiency and reducing generation of noise by preventing generation of effervescence due to a flame of a burner.
  • One aspect of the present invention provides an oil-fired boiler, which is configured with a combustion chamber wall body (112) configured to enclose a combustion chamber (102) in which combustion is performed by a burner (103); a plurality of fire tubes (122) installed to face the burner (103) with the combustion chamber (102) interposed therebetween, wherein a combustion gas generated by the combustion of the burner (103) passes through the plurality of fire tubes (122); a first fire tube support plate (113) configured to fixedly support one end of each of the plurality of fire tubes (122), which is close to the burner (103); a boiler body (110) configured to form a water tank (101) accommodating heating water which is filled in a space between the combustion chamber wall body (112) and the boiler body (110) and a space between the fire tube (122) and the boiler body (110); and combustion gas path guides (200, 200-1, 200-2, and 200-3) provided between the burner (103) and the first fire tube support plate (113) and configured to block the combustion gas generated by the combustion of the burner (103) from flowing through a central
  • the combustion gas path guide (200) may include a guide plate (211) separated from the first fire tube support plate (113) .
  • the oil-fired boiler may further include a guide sidewall (214) extending from an edge of the guide plate (211) toward the burner (103).
  • An insulating material (220) may be provided on the guide plate (211) to block heat of the combustion gas generated in the burner (103) from being transmitted to the guide plate (211) .
  • the combustion gas path guide (200-1) may be configured with a guide plate (211-1) separated from the first fire tube support plate (113); and an insulating material (220-1) provided on the guide plate (211-1) to block the heat of the combustion gas generated in the burner (103) from being transmitted to the guide plate (211-1).
  • the combustion gas path guide (200-2) may be configured with a first guide plate (211-2) separated from the first fire tube support plate (113); a second guide plate (212-2) provided to form a space (213-2) between the first guide plate (211-2) and the second guide plate (212-2); and a guide sidewall (214-2) extending from an edge of each of the first guide plate (211-2) and the second guide plate (212-2) toward the burner (103) to seal an inside of the space (213-2).
  • the combustion gas path guide (200-3) may be configured with a first guide plate (211-3) separated from the first fire tube support plate (113); a second guide plate (212-3) provided to form a space (213-3) between the first guide plate (211-3) and the second guide plate (212-3); and a guide sidewall (214-3) configured to connect edges of the first guide plate (211-3) and the second guide plate (212-3) to each other and seal an inside of the space (213-3).
  • a portion in contact with the combustion gas of each of the combustion gas path guides (200, 200-1, 200-2, and 200-3) may be configured with a ferritic stainless steel for high-temperature oxidation resistance.
  • An end portion of the edge of the guide plate (211) may be configured to protrude outward more than an outside surface of the guide sidewall (214).
  • an oil-fired boiler which is configured with a combustion chamber wall body (112) configured to enclose a combustion chamber (102) in which combustion is performed by a burner (103); a plurality of fire tubes (122) installed to face the burner (103) with the combustion chamber (102) interposed therebetween, wherein a combustion gas generated by the combustion of the burner (103) passes through the plurality of fire tubes (122); a first fire tube support plate (113) configured to fixedly support one end of each of the plurality of fire tubes (122), which is close to the burner (103); a combustion gas path guide (200-4) configured to cover an upper portion of the first fire tube support plate (113) to block the combustion gas from being in direct contact with the first fire tube support plate (113), and having a through-hole (215-4) formed at a position corresponding to each of the plurality of fire tubes (122) to allow the combustion gas to flow through the plurality of fire tubes (122).
  • the combustion gas path guide (200-4) may be formed of an insulating material having a predetermined thickness.
  • the combustion gas path guide configured to guide the combustion gas to an edge thereof is provided, the combustion gas can be prevented from being in direct contact with the fire tube support plate to suppress generation of bubbles, improve thermal efficiency, and reduce generation of noise.
  • FIG. 2 is a cross-sectional view illustrating an oil-fired boiler according to a first embodiment of the present invention
  • FIG. 3 is a diagram illustrating a combustion gas path guide according to the first embodiment.
  • the oil-fired boiler 1 of the present invention is configured with a burner 103 configured to generate a flame, a combustion chamber wall body 112 configured to enclose a combustion chamber 102 in which combustion is performed by the burner 103, a plurality of fire tubes 122 through which a combustion gas generated from the combustion of the burner 103 passes inside the plurality of fire tubes 122, a first fire tube support plate 113 and a second fire tube support plate 114 by which an upper end portion and a lower end portion of each of the plurality of fire tubes 122 are fixedly supported, and a combustion gas path guide 200 provided between the burner 103 and the first fire tube support plate 113 and configured to block the combustion gas from flowing through a central portion of the combustion chamber 102 and at the same time guide the combustion gas to flow to an edge portion of the combustion chamber 102.
  • the burner 103 is provided above the combustion chamber 102, and a flame generated in the burner 103 is formed downward.
  • a boiler body 110 encloses the combustion chamber wall body 112 with a separate space interposed therebetween.
  • a hot water coil 121 is provided to enclose the outside of the combustion chamber wall body 112 in the space between the combustion chamber wall body 112 and the boiler body 110. Direct water supplied through a hot water demand of a user flows inside the hot water coil 121. The direct water flowing inside the hot water coil 121 is heat-exchanged with heating water filled in a water tank 101 which is an outside space of the hot water coil 121, and then is supplied to the user as hot water.
  • a heating water partition membrane 124 is provided in a space between the fire tube 122 and the boiler body 110.
  • the heating water partition membrane 124 prevents a sudden flow of the heating water inside the water tank 101, thereby the heating water is sufficiently heat-exchanged with the combustion gas which flows inside the fire tube 122.
  • the fire tube 122 has a cylindrical shape having a predetermined length in a vertical direction and is configured with open upper and lower portions such that the combustion gas flows inside an inner space thereof through the open upper portion and is discharged through the open lower portion after flowing inside the inner space.
  • Baffle plates 123 are provided inside the fire tube 122 to increase a time during which the combustion gas stays in the inner space of the fire tube 122.
  • the baffle plates 123 are provided such that a plurality of pieces are disposed to be staggered in a longitudinal direction of the fire tube 122 to retard a passage time of the combustion gas, thereby improving efficiency of heat exchange.
  • a first fire tube support plate 113 is coupled to the upper end portion of the fire tube 122. An edge of the first fire tube support plate 113 is coupled to a lower end of the combustion chamber wall body 112, and a first fire tube insertion hole 113a is formed in a body of the first fire tube support plate 113 to insert the upper end portion of the fire tube 12 into the body.
  • the second fire tube support plate 114 is coupled to the lower end portion of the fire tube 122.
  • An edge of the second fire tube support plate 114 is coupled to a lower end of the boiler body 110, and a second fire tube insertion hole 114a is formed in a body of the second fire tube support plate 114 to insert the lower end portion of the fire tube 122 into the body.
  • the upper end portion and the lower end portion of the fire tube 122 are respectively inserted into the first fire tube insertion hole 113a and the second fire tube insertion hole 114a, and the contact portions are coupled by welding.
  • the combustion gas path guide 200 is configured with a path guide 210 and an insulating material 220, and is installed to face the burner 103 with the combustion chamber 102 interposed therebetween.
  • the path guide 210 is configured with a guide plate 211 separated upward from the first fire tube support plate 113, and a guide sidewall 214 extending upward from an edge of the guide plate 211 toward the burner 103.
  • the insulating material 220 is configured to block heat of the combustion gas from being transferred above the first fire tube support plate 113, and heat blocking may vary according to a thickness or a material of the insulating material 220.
  • the insulating material 220 may be configured with an insulating refractory material having both fire resistance and heat insulation so as to withstand high temperature heat.
  • a separate space is formed between the guide sidewall 214 and the combustion chamber wall body 112 to form a flow path for the combustion gas.
  • a guide support leg 213 having a predetermined height is formed on a lower surface of the guide plate 211 to support the path guide 210 which is in a state separated from an upper surface of the first fire tube support plate 113.
  • An end portion of the edge of the guide plate 211 is configured to protrude outward more than an outside surface of the guide sidewall 214, and thus the space between the guide sidewall 214 and the combustion chamber wall body 112 is further narrowed so that the heat exchange between the combustion gas and the heating water is more easily accomplished.
  • a heating water inlet 115 and a heating water outlet 116 are provided to allow the heating water to flow into and out of the water tank 101. Further, although not shown in the drawing, an inlet end and an outlet end of the hot water coil 121 are respectively connected to a direct water pipe (not shown) and a warm water pipe (not shown) which pass through the boiler body 110 and are provided outside the boiler body 110.
  • a flow of the combustion gas in the oil-fired boiler configured as described above is as follows. That is, when combustion is performed in the burner 103, a combustion gas flows downward, and the flowing combustion gas is blocked by the insulating material 220, and thus an upward flow is generated along an inner wall of the guide sidewall 214. Thereafter, the combustion gas flows downward along the space between the guide sidewall 214 and the combustion chamber wall body 112, and, while flowing downward, the combustion gas undergoes a first heat-exchange with the heating water of the water tank 101.
  • the combustion gas which has undergone the first heat-exchange, flows downward and then flows inside the fire tube 122, and, while flowing along the inner space of the fire tube 122, undergoes a second heat-exchange with the heating water of the water tank 101 provided outside the fire tube 122.
  • thermal efficiency is improved due to heat exchange occurring as the combustion gas flows downward along the space between the guide sidewall 214 and the combustion chamber wall body 112.
  • the insulating material 220 blocks the flow of the combustion gas, and thus heat is blocked from being transferred to the first fire tube support plate 113 such that effervescence is effectively prevented.
  • the guide plate 211 when the guide plate 211 is configured with a thick thickness, the combustion gas flows to the edge of the guide plate 211 and then a downward flow of the combustion gas is generated, and thus heat of the combustion gas is blocked from being directly transmitted to the first fire tube support plate 113 such that generation of effervescence may be prevented.
  • the guide plate 211 since the surface of the guide plate 211 may be oxidized, the guide plate 211 is preferably configured to be a heat resistant steel plate of a ferritic stainless steel with high-temperature oxidation resistance.
  • FIG. 4 is a cross-sectional view illustrating an oil-fired boiler according to a second embodiment of the present invention.
  • a combustion gas path guide 200-1 of the second embodiment is configured with a guide plate 211-1 separated upward from the first fire tube support plate 113, and an insulating material 220-1 provided on the guide plate 211-1 and configured to block heat of a combustion gas generated in the burner 103 from being transmitted to the guide plate 211-1.
  • the combustion gas flows to the upper surface of the first fire tube support plate 113 and undergoes heat exchange such that effervescence is prevented.
  • FIG. 5 is a cross-sectional view illustrating an oil-fired boiler according to a third embodiment of the present invention.
  • a combustion gas path guide 200-2 of the third embodiment is configured with a first guide plate 211-2 separated upward from the first fire tube support plate 113, a second guide plate 212-2 provided to form a space 213-2 between the first guide plate 211-2 and the second guide plate 212-2, and a guide sidewall 214-2 extending from an edge of each of the first guide plate 211-2 and the second guide plate 212-2 toward the burner 103 and configured to seal an inside of the space 213-2.
  • the combustion gas path guide 200-2 has a configuration nearly identical to that of the combustion gas path guide 200 of the first embodiment, but, there is a difference in that the second guide plate 212-2 and the space 213-2 are provided instead of the insulating material 220.
  • thermal efficiency can be improved due to a first heat exchange occurring as combustion gas flows downward along a space between the guide sidewall 214-2 and the combustion chamber wall body 112.
  • heat of the combustion gas is blocked from being directly transmitted to the first fire tube support plate 113 such that generation of effervescence may be prevented.
  • the inside of the space 213-2 may be formed as a hollow space, or may be filled with a material for blocking heat transfer.
  • the first guide plate 211-2 and the second guide plate 212-2 may be configured with a ferritic stainless steel for high-temperature oxidation resistance so as to prevent oxidation resulting from a high temperature.
  • FIG. 6 is a cross-sectional view illustrating an oil-fired boiler according to a fourth embodiment of the present invention.
  • a combustion gas path guide 200-3 of the fourth embodiment is configured with a first guide plate 211-3 separated upward from the first fire tube support plate 113, a second guide plate 212-3 provided to form a space 213-3 between the first guide plate 211-3 and the second guide plate 212-3, and a guide sidewall 214-3 configured to connect edges of the first guide plate 211-3 and the second guide plate 212-3 and configured to seal an inside of the space 213-3.
  • the fourth embodiment is different from the third embodiment in that the guide sidewall 214-3 does not protrude above the second guide plate 212-3.
  • thermal efficiency can be improved due to heat exchange occurring as the combustion gas flows downward along a space between the guide sidewall 214-3 and the combustion chamber wall body 112.
  • FIG. 7 is a cross-sectional view illustrating an oil-fired boiler according to a fifth embodiment of the present invention
  • FIG. 8 is a diagram illustrating an insulating material of FIG. 7 .
  • a combustion gas path guide 200-4 of the fifth embodiment covers an upper portion of the first fire tube support plate 113 to block the combustion gas from being in direct contact with the first fire tube support plate 113, and is configured such that a through-hole 215-4 is formed at a position corresponding to the fire tube 122 to allow the combustion gas to flow through the fire tube 122.
  • the combustion gas path guide 200-4 is preferably formed of an insulating material having a predetermined thickness.
  • the combustion gas path guide 200-4 prevents combustion gas from being in direct contact with the upper surface of the first fire tube support plate 113 such that generation of effervescence may be prevented.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP16773490.4A 2015-04-02 2016-04-01 Chaudière au mazout comportant un guide de trajectoire de gaz de combustion Active EP3287696B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150046808A KR101794572B1 (ko) 2015-04-02 2015-04-02 연소가스 유로가이드가 구비된 기름보일러
PCT/KR2016/003393 WO2016159709A1 (fr) 2015-04-02 2016-04-01 Chaudière au mazout comportant un guide de trajectoire de gaz de combustion

Publications (3)

Publication Number Publication Date
EP3287696A1 true EP3287696A1 (fr) 2018-02-28
EP3287696A4 EP3287696A4 (fr) 2019-03-13
EP3287696B1 EP3287696B1 (fr) 2021-03-03

Family

ID=57006094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16773490.4A Active EP3287696B1 (fr) 2015-04-02 2016-04-01 Chaudière au mazout comportant un guide de trajectoire de gaz de combustion

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Country Link
EP (1) EP3287696B1 (fr)
KR (1) KR101794572B1 (fr)
WO (1) WO2016159709A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3736491A1 (fr) * 2019-05-03 2020-11-11 Kyungdong Navien Co., Ltd. Brûleur à huile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101869374B1 (ko) * 2017-11-28 2018-06-20 최영환 스케일 발생 억제 기능을 갖는 저탕식 보일러

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Publication number Priority date Publication date Assignee Title
FR1346996A (fr) * 1962-07-02 1963-12-27 Thermazur Sa Soc Chaudière pour installation de chauffage par l'eau chaude
DE3108452C2 (de) * 1981-03-06 1983-07-21 Thümmler, Siegfried, 4920 Lemgo Öl/Gas-Heizkessel
US4474117A (en) * 1981-04-28 1984-10-02 Paul Marollaud Boiler using a solid granulated fuel
DE8324969U1 (de) * 1983-08-31 1986-10-02 Buderus Ag, 6330 Wetzlar Zentralheizungskessel
DE8520721U1 (de) * 1985-07-18 1988-10-13 Seiler, Hermann, 4937 Lage Einrichtung zur Verbrennungsunterstützung für Öl- oder Gasbrenner
KR100484123B1 (ko) * 2003-03-19 2005-04-20 주식회사 경동보일러 콘덴싱 기름보일러
JP2007046794A (ja) * 2005-08-05 2007-02-22 Noritz Corp 温水装置
KR100747000B1 (ko) 2006-02-17 2007-08-07 (주)귀뚜라미보일러 열교환기 및 이를 적용한 응축잠열회수보일러
KR20100006985U (ko) * 2008-12-30 2010-07-08 김병국 보일러용 폐열회수장치
KR20110084725A (ko) * 2010-01-18 2011-07-26 린나이코리아 주식회사 열교환기의 배기가이드 조립구조

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3736491A1 (fr) * 2019-05-03 2020-11-11 Kyungdong Navien Co., Ltd. Brûleur à huile
US11255574B2 (en) 2019-05-03 2022-02-22 Kyungdong Navien Co., Ltd. Oil boiler

Also Published As

Publication number Publication date
EP3287696B1 (fr) 2021-03-03
KR101794572B1 (ko) 2017-12-01
WO2016159709A1 (fr) 2016-10-06
EP3287696A4 (fr) 2019-03-13
KR20160118536A (ko) 2016-10-12

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