EP0677709A2 - Kessel - Google Patents

Kessel Download PDF

Info

Publication number
EP0677709A2
EP0677709A2 EP95302436A EP95302436A EP0677709A2 EP 0677709 A2 EP0677709 A2 EP 0677709A2 EP 95302436 A EP95302436 A EP 95302436A EP 95302436 A EP95302436 A EP 95302436A EP 0677709 A2 EP0677709 A2 EP 0677709A2
Authority
EP
European Patent Office
Prior art keywords
boiler
heat exchanger
tank
combustion
divider member
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.)
Withdrawn
Application number
EP95302436A
Other languages
English (en)
French (fr)
Other versions
EP0677709A3 (de
Inventor
Leslie Wilson
Neil Edward Pritchard
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.)
BLUE CIRCLE HEATING Ltd
Original Assignee
BLUE CIRCLE HEATING 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 BLUE CIRCLE HEATING Ltd filed Critical BLUE CIRCLE HEATING Ltd
Publication of EP0677709A2 publication Critical patent/EP0677709A2/de
Publication of EP0677709A3 publication Critical patent/EP0677709A3/de
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • 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

Definitions

  • This invention relates to boilers and is especially applicable to gas or oil fired boilers for use in hot water central heating systems.
  • a boiler comprising a liquid filled jacket-type heat exchanger having a rear tank, two spaced apart side tanks, a front tank extending between the side tanks over at least a lower part thereof, a base and a top which together define an enclosure through which products of combustion from a burner are fed to an outlet in said top, said heat exchanger further comprising a divider member disposed between said base and said top which slopes upwards from the front to the back of said heat exchanger, and divides the enclosure into a lower chamber into which the products of combustion from the burner are fed, and an upper chamber, said divider member being provided with a plurality of holes therein for feeding said products of combustion from said lower chamber to said upper chamber, and a front opening closure member disposed above said front tank for providing access to said upper chamber.
  • the divider member comprises a solid plate, or comprises a further liquid filled tank coupled to tanks of said heat exchanger.
  • said plurality of holes extend adjacent one side edge of said divider member, adjacent the back edge of said divider member and adjacent the other side edge of said divider member.
  • a diffuser plate is disposed above said divider member.
  • the top of said heat exchanger comprises a further liquid filled tank coupled to tanks of said heat exchanger.
  • the top of said heat exchanger may slope upwards from the front to the back of said heat exchanger, and said outlet for said products of combustion may comprise an aperture in said top disposed nearest the rear edge thereof.
  • a plurality of fin members may be provided disposed in said upper chamber of said enclosure and mounted on the inner surface of said heat exchanger for increasing heat transfer, and a plurality of retarders may be provided in said upper chamber for retarding the flow of the products of combustion therein, said retarders preferably being removably mounted.
  • an aperture may be provided in said front tank for receiving an outlet of said burner, and an inspection window may also be provided in said front tank.
  • a removable cleaning door may also be provided disposed below said front tank.
  • a liquid inlet and outlet for said heat exchanger may be provided disposed in one or both of the side tanks thereof, and diverter means may be disposed in one or more of the tanks of said heat exchanger for increasing the circulation of liquid therein.
  • a diverter plate disposed in front of the or each liquid inlet may also be provided.
  • FIG. 1 of the drawings there is shown a heat exchanger 1 for use in an oil fired hot water central heating boiler in accordance with the present invention.
  • the heat exchanger 1 is of the jacket-type and comprises a rear tank 2 and two side tanks 3 and 4 which are interconnected and may be formed integrally with one another.
  • the side tanks 3 and 4 each have water outlet couplings 5 and return couplings 6, the return coupling 6 of tank 4 only being shown, which enable the boiler to be connected to various designs of central heating systems.
  • the heat exchanger 1 also comprises a top tank 7 which connects with the rear tank 2 and the side tanks 3 and 4, and which is provided with a flue outlet 8 disposed nearest the rear edge thereof.
  • the top tank 7 is sloped upwards from front to back of the heat exchanger 1, the angle of the slope being important to encourage the flow of water and to prevent the formation of gas (air) pockets which impair the efficiency of the boiler, as well as producing noise due to localised boiling.
  • the heat exchanger 1 is also provided with a front tank 9 which extends between the side tanks 3 and 4 and is coupled thereto over a lower intermediate part of the heat exchanger 1, the front tank 9 being provided with an aperture 10 which is adapted to receive the outlet of a pressure jet oil fired burner (not shown) by means of which products of combustion from the burner are introduced into the heat exchanger 1. Also in the front tank 9 is disposed a flame viewing window 11.
  • the opening 14 above the front tank 9 would normally be closed by a door (not shown) which provides access to the upper part of the heat exchanger 1 for cleaning and/or servicing purposes.
  • the parts of the heat exchanger 1 thus far described define an enclosure through which products of combustion introduced via the aperture 10 are caused to flow in the heat exchanger 1 for the purpose of heating the water contained in the various tanks 2, 3, 4, 7 and 9 thereof.
  • a divider member 15 is provided which effectively divides the enclosure into a lower combustion chamber into which the products of combustion from the burner (not shown) are introduced via the aperture 10 and an upper chamber corresponding essentially to the opening 14.
  • the divider member 15 extends from the top of the front tank 9 to the inner surface of the rear tank 2 and between the inner surfaces of the side tanks 3 and 4.
  • the divider member 15 may be either a solid plate or may take the form of a further water tank, and, as in the case to the top tank 7, it may advantageously slope upwards from front to back of the heat exchanger 1 to aid water and/or combustion product flow.
  • the divider plate 15 is provided with a plurality of apertures 16, the number, sizing and positioning of which may take various forms such that the lower combustion chamber is pressurised to ensure that efficient combustion takes place, and to ensure that the flow of combustion products is optimised for maximum heat transfer to the heat exchanger 1.
  • the holes 16 in the divider plate 15 of Figure 1 are disposed adjacent one side edge, adjacent the rear edge and adjacent the other side edge of the plate 15 so as to distribute the flow of combustion products around the upper chamber of the heat exchanger 1.
  • the fins 17 may also be arranged to support one or more plate retarders (not shown) which not only retard the flow of combustion gases but, by their design, direct the gases around every portion of the upper chamber of the heat exchanger 1, and around the fins 17, thereby again increasing the heat transfer, and subsequently the boiler output and efficiency. They can also play an important role in reducing the noise which can be generated in the boiler.
  • various water diverters such as the diverters 18 in side tank 4, may be included, which ensure that water flows efficiently throughout the heat exchanger 1 thus preventing possible by-passes therein.
  • a further water diverter 19 may also be provided in the vicinity of each of the return couplings 6 to aid in directing water flow, and also to reduce the possibility of cold return water impinging directly on the inner surface of the heat exchanger 1 which could otherwise cause chilling of the products of combustion and cause corrosion.
  • FIGs. 2 and 3 of the drawings there is depicted a heat exchanger 20 which is basically the same as that described with reference to Fig. 1, and in which the same reference numerals have been used for corresponding features. For the sake of convenience only those features which differ from those of the heat exchanger 1 of Fig. 1 will be described.
  • the divider member 15 is in the form of a divider water tank coupled to the rear and side tanks 2, 3 and 4 of the heat exchanger 20, and the holes 16 in the divider member 15 consist of five rows of holes which extend from front to back of the member 15.
  • the holes 16 each consist of a tube 16' which extends through the divider water tank 15, and one or more turbulators (not shown) may be located within the tubes 16' to further improve heat transfer efficiency.
  • a pressure jet oil burner 21 is provided mounted on the front of the heat exchanger 20, and having an outlet 22 which extends through the aperture 10 in the front tank 9 to introduce the products of combustion therefrom into the lower combustion chamber of the heat exchanger 20.
  • a blown gas burner could be used as an alternative to providing a pressure jet oil burner 21 .
  • FIG. 2 Also in the heat exchanger 20 of Figs. 2 and 3 there is shown three retarders 23 located on the fins 17 and arranged to be spaced therefrom so that combustion products are caused to flow around the edges of the retarders 23.
  • An optional diffuser plate 24 (Fig. 3) may be provided positioned above the holes 16 in the divider tank 15 to further improve efficiency.
  • the flue outlet 8 may be connected to a conventional flue or to a balanced flue.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP95302436A 1994-04-15 1995-04-12 Kessel. Withdrawn EP0677709A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9407515 1994-04-15
GB9407515A GB2288655B (en) 1994-04-15 1994-04-15 Boilers

Publications (2)

Publication Number Publication Date
EP0677709A2 true EP0677709A2 (de) 1995-10-18
EP0677709A3 EP0677709A3 (de) 1996-11-20

Family

ID=10753608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95302436A Withdrawn EP0677709A3 (de) 1994-04-15 1995-04-12 Kessel.

Country Status (2)

Country Link
EP (1) EP0677709A3 (de)
GB (1) GB2288655B (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1589689A (en) * 1922-01-05 1926-06-22 Heay Phillip Boiler
GB2248918A (en) * 1990-09-28 1992-04-22 Herbert Edward Boulter Boilers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2049125A (en) * 1980-02-22 1980-12-17 Mid Ulster Eng Ltd Double-shelled oil-fired boilers
GB2167169B (en) * 1984-05-25 1988-08-17 Stephen William John Grant A wrap around back boiler
GB2262977B (en) * 1991-12-31 1995-04-12 Alley Enterprises Ltd A boiler
GB2280494B (en) * 1993-07-17 1997-06-11 G A H A boiler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1589689A (en) * 1922-01-05 1926-06-22 Heay Phillip Boiler
GB2248918A (en) * 1990-09-28 1992-04-22 Herbert Edward Boulter Boilers

Also Published As

Publication number Publication date
GB2288655B (en) 1997-12-10
GB2288655A (en) 1995-10-25
EP0677709A3 (de) 1996-11-20
GB9407515D0 (en) 1994-06-08

Similar Documents

Publication Publication Date Title
US5901641A (en) Baffle for deep fryer heat exchanger
EP0073560B1 (de) Brennstoffbeheizter Flüssigkeitserhitzer
JP3889001B2 (ja) 液体加熱システム
US6237469B1 (en) Gas powered pressureless steam cooker
US6732728B2 (en) Air baffle for a heat exchanger
US4662350A (en) Heating apparatus for a water heating for small rooms
US20120145373A1 (en) Firetube having thermal conducting passageways
BR112012004340A2 (pt) Recipiente de fritura com sistema de troca de calor associado
US4480591A (en) Condensing boiler
US6029653A (en) Induced draft heat exchanger with serpentine baffles
US6564794B1 (en) Heat exchanger air baffle diverter vane
US4499859A (en) Vapor generator
CA1262221A (en) Gas-fired boiler plant
EP0677709A2 (de) Kessel
US4421066A (en) High efficiency boiler
CN1105271C (zh) 高温发生器
US4188917A (en) Method and device for improving the efficiency of heat generators
KR100308890B1 (ko) 유니트히터와그히터용열교환기
GB2103351A (en) Flue arrangements for boilers
US4784110A (en) Wall furnace
PL191986B1 (pl) Element wymiennika ciepła
CN113137751A (zh) 换热器及具有其的燃烧换热设备
WO1993013366A1 (en) A boiler
JPH07127911A (ja) 熱交換器
US20240049913A1 (en) Baffle and associated fryer heat exchange system and fryer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19970513

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19980811

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19981229