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WO2002033316A1 - Procede et dispositif permettant de recuperer la chaleur residuelle dans l'unite de prechauffage de chaudieres a huile chaude - Google Patents

Procede et dispositif permettant de recuperer la chaleur residuelle dans l'unite de prechauffage de chaudieres a huile chaude Download PDF

Info

Publication number
WO2002033316A1
WO2002033316A1 PCT/KR2001/001744 KR0101744W WO0233316A1 WO 2002033316 A1 WO2002033316 A1 WO 2002033316A1 KR 0101744 W KR0101744 W KR 0101744W WO 0233316 A1 WO0233316 A1 WO 0233316A1
Authority
WO
WIPO (PCT)
Prior art keywords
boiler body
boiler
air
waste heat
channel
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/KR2001/001744
Other languages
English (en)
Inventor
Young Hi Lee
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.)
SAMJUNG BOILER CO Ltd
Original Assignee
SAMJUNG BOILER 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 SAMJUNG BOILER CO Ltd filed Critical SAMJUNG BOILER CO Ltd
Priority to AU2001296076A priority Critical patent/AU2001296076A1/en
Publication of WO2002033316A1 publication Critical patent/WO2002033316A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • 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
    • F24H9/0084—Combustion air preheating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • 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
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F23M5/085—Cooling thereof; Tube walls using air or other gas as the cooling medium
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • the burner installed inside the boiler body when the burner installed inside the boiler body is ignited, it heats the tube containing the hot oil.
  • the heated air and the smoke generated by the combustion process pass through space defined between the tube and the boiler body and then are discharged through the flue chamber from the boiler to the outside.
  • an object of the present invention is to provide a method and device for recovering waste heat in a preheating unit of hot oil boilers, which includes a boiler body, a plurality of air feed pipes transversely set in the flue chamber of the boiler body, a plurality of shielding rings having cutouts and circumferentially mounted around the boiler body such that the cutouts are alternately positioned at the top and bottom portions of the body, and an outer casing housing the boiler body to define an air channel by the rings and the casing, thus being capable of heating air flowing along the air channel using waste heat from the boiler body and then feeding the heated air into the burner inside the boiler body, therefore being capable of preventing undesirable energy loss.
  • FIG. 1 is a perspective view showing a hot oil boiler according to the present invention
  • Fig. 2 is a vertical sectional view of the hot oil boiler of this invention
  • Fig. 4 is a detailed side sectional view showing an air channel formed by the shielding rings mounted on the boiler body of this invention
  • the method of this invention of recovering waste heat in a preheating unit of hot oil boilers having a boiler body provided with a double-walled or triple- walled boiler tube, a burner installed in the first end of the boiler body, and a flue chamber installed in the second end of the boiler body, and an insulating cover covering the boiler body, includes the steps of: heating air using waste heat from the boiler body while the air, fed through air feed pipes transversely set in the boiler body in such a way as to pass through the flue chamber of the body, flows along an air channel defined outside the body; and feeding the heated air to the burner inside the boiler body.
  • the device for recovering waste heat in a preheating unit of hot oil boilers includes a boiler body 1, a plurality of air feed pipes 3, a plurality of shielding rings 5, an outer casing 6, and an air guide pipe.
  • the air feed pipes 3 are transversely set in the flue chamber 2 of the boiler body 1.
  • the shielding rings 5 have cutouts 4 and are circumferentially mounted around the boiler body 1 at regular intervals such that the cutouts 4 are alternately positioned at the top and bottom portions of the body 1.
  • the outer casing 6 houses the boiler body 1 to define an air channel 7 by the rings 5 and the casing 6, and is covered with an insulating cover 8 for heat insulation.
  • the air guide pipe extends from the outlet end of the channel 7 to a burner inside the boiler body so as to feed hot air from the channel 7 to the burner.
  • Reference numeral 12 denotes a boiler tube, and will not be described in detail herein.
  • the shielding rings 9 be formed in a single spiral ring circumferentially mounted around the boiler body 1, and the outer casing 10 house the body 1 to define the air channel 11 by the spiral ring 9 and the casing 10.
  • the operation of the hot oil boiler according to this invention is as follows.
  • a burner installed inside the boiler body 1, is ignited by turning on the boiler, thus generating hot air.
  • the hot air and combustion smoke from the burner heats an outer double tube installed inside the boiler and then passes through the gap defined between the tube and the body 1.
  • the hot air and combustion smoke flow into a flue chamber 2 of the boiler body 1 and then are discharged from the boiler to the outside through the flue chamber 2.
  • waste heat is discharged to the outside through the flue chamber 2 while heating a plurality of air feed pipes 3 which are formed in multi layers and transversely set in the flue chamber 2 of the boiler body 1. While air is fed through the air feed pipes 3 from the outside, air is primarily heated by the waste heat in the flue chamber 2 and then flows along a channel 7 defined outside the boiler body 1.
  • the channel 7 is defined between the boiler body 1 and the outer casing 6 by the shielding rings 5 which have the cutouts 4 and are circumferentially mounted around the boiler body 1 at regular intervals, air can flow along the channel 7 while passing through the cutouts 4 of the shielding rings 5.
  • the shielding rings 5 each have a cutout 4 and are circumferentially mounted around the boiler body 1.
  • the cutouts 4 are alternately positioned at the top and bottom portions of the body 1, so air moves up and down along the body 1 to uniformly heat the body 1, thus being capable of keeping temperature of the boiler uniform.
  • the air guide pipe extending from the outlet end of the channel may be connected to an external pipe arrangement of a heating system in place of the burner.
  • the shielding rings 9 are formed in a single spiral ring circumferentially mounted around the boiler body 1, so air fed from the air feed pipes 3 flows along the spiral channel 11 while being heated by waste heat dissipated from the boiler body 1. The air heated in this way is fed into the burner, thus accomplishing the same effect as that of the above embodiment.
  • the present invention provides a method and device for recovering waste heat in a preheating unit of hot oil boilers, which includes a boiler body, a plurality of air feed pipes transversely set in the flue chamber of the boiler body, a plurality of shielding rings having cutouts and circumferentially mounted around the boiler body such that the cutouts are alternately positioned at the top and bottom portions of the body, and an outer casing housing the boiler body to define an air channel by the rings and the casing, thus being capable of heating air flowing along the air channel using waste heat from the boiler body and then feeding the heated air into the burner inside the boiler body.
  • the device of this invention is easy to manufacture due to its simple construction. This device is also capable of avoiding undesirable energy loss due to recycling of waste heat, accomplishes maximum heat efficiency, and avoids undesirable waste of fuel, as well as reducing operating expenses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Supply (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de récupérer la chaleur résiduelle dans une unité de préchauffage de chaudières à huile chaude. Le dispositif de cette invention possède des tuyaux (3) d'alimentation d'air placés transversalement dans le corps (1) d'une chaudière. Des anneaux de protection (5), chacun possédant une découpe (4), sont montés sur la circonférence du corps (1) à des intervalles réguliers, les découpes (4) étant positionnées alternativement dans les parties de sommet et de bas du corps (1). Le corps (1) de chaudière est logé dans un boîtier extérieur (6) pour qu'un canal (7) soit défini par les anneaux (5) et ledit boîtier (6). Ce boîtier extérieur (6) est recouvert d'un revêtement isolant (8). Un tuyau de guidage de l'air s'étend de l'orifice d'extrémité du canal (7) à un brûleur à l'intérieur du corps (1) de chaudière, amenant ainsi l'air chaud du canal (7) au brûleur et récupérant la chaleur résiduelle.
PCT/KR2001/001744 2000-10-17 2001-10-17 Procede et dispositif permettant de recuperer la chaleur residuelle dans l'unite de prechauffage de chaudieres a huile chaude Ceased WO2002033316A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001296076A AU2001296076A1 (en) 2000-10-17 2001-10-17 Method and device for recovering waste heat in preheating unit of hot oil boilers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2000-0061100A KR100377971B1 (ko) 2000-10-17 2000-10-17 산업용 열매체 보일러의 내장형 공기 예열 장치의 폐열 회수장치
KR2000/61100 2000-10-17

Publications (1)

Publication Number Publication Date
WO2002033316A1 true WO2002033316A1 (fr) 2002-04-25

Family

ID=19693972

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2001/001744 Ceased WO2002033316A1 (fr) 2000-10-17 2001-10-17 Procede et dispositif permettant de recuperer la chaleur residuelle dans l'unite de prechauffage de chaudieres a huile chaude

Country Status (4)

Country Link
KR (1) KR100377971B1 (fr)
CN (1) CN1258055C (fr)
AU (1) AU2001296076A1 (fr)
WO (1) WO2002033316A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004097311A1 (fr) * 2003-04-25 2004-11-11 Societe D'etude Et De Realisation Mecaniques Engeneering En Technologies Avancees Echangeur de chaleur a condensation equipe d'un recuperateur de chaleur gaz/air
EP2295862A3 (fr) * 2009-08-21 2014-06-11 Vaillant GmbH Conduit combiné d'air de combustion et de fumées d'un appreil de chauffe

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101144612B (zh) * 2007-10-09 2010-05-19 西安交通大学 一种撬装式燃油超临界压力直流注汽锅炉
KR101247620B1 (ko) * 2012-12-11 2013-04-03 주식회사 부-스타 저압용 저녹스 버너가 구성된 음압형 증기식 온수보일러
KR101322219B1 (ko) * 2012-12-11 2013-10-28 주식회사 부-스타 음압형 증기식 온수보일러용 폐열회수장치
KR101329151B1 (ko) 2013-08-06 2013-11-14 강정순 고화력 2중관 로스터와 폐열회수장치를 갖는 산업용 보일러
KR102166304B1 (ko) 2020-06-23 2020-10-16 (주)조일비엔피 횡형 열매체 보일러용 파울링 제거장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558689A (en) * 1984-06-25 1985-12-17 Mccann Artie Combustion gas heat recovery apparatus
US4987881A (en) * 1982-09-30 1991-01-29 Narang Rajendra K Fuel burning furnace
KR930018498U (ko) * 1992-01-08 1993-08-21 황병규 온풍장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4987881A (en) * 1982-09-30 1991-01-29 Narang Rajendra K Fuel burning furnace
US4558689A (en) * 1984-06-25 1985-12-17 Mccann Artie Combustion gas heat recovery apparatus
KR930018498U (ko) * 1992-01-08 1993-08-21 황병규 온풍장치

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004097311A1 (fr) * 2003-04-25 2004-11-11 Societe D'etude Et De Realisation Mecaniques Engeneering En Technologies Avancees Echangeur de chaleur a condensation equipe d'un recuperateur de chaleur gaz/air
US7302916B2 (en) 2003-04-25 2007-12-04 Rocco Giannoni Condensation heat exchanger with a gas/air heat collector
EP2295862A3 (fr) * 2009-08-21 2014-06-11 Vaillant GmbH Conduit combiné d'air de combustion et de fumées d'un appreil de chauffe

Also Published As

Publication number Publication date
KR100377971B1 (ko) 2003-03-31
KR20010016050A (ko) 2001-03-05
CN1258055C (zh) 2006-05-31
CN1469982A (zh) 2004-01-21
AU2001296076A1 (en) 2002-04-29

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