CA2676467A1 - Boiler and pilot system - Google Patents

Boiler and pilot system Download PDF

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Publication number
CA2676467A1
CA2676467A1 CA2676467A CA2676467A CA2676467A1 CA 2676467 A1 CA2676467 A1 CA 2676467A1 CA 2676467 A CA2676467 A CA 2676467A CA 2676467 A CA2676467 A CA 2676467A CA 2676467 A1 CA2676467 A1 CA 2676467A1
Authority
CA
Canada
Prior art keywords
pilot
assembly
fuel
air
burner
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
CA2676467A
Other languages
French (fr)
Other versions
CA2676467C (en
Inventor
John P. Chicoine
Kenneth W. Cohen
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.)
Mestek Inc
Original Assignee
Mestek Inc
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 Mestek Inc filed Critical Mestek Inc
Publication of CA2676467A1 publication Critical patent/CA2676467A1/en
Application granted granted Critical
Publication of CA2676467C publication Critical patent/CA2676467C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner

Abstract

A pilot and burner assembly includes a burner assembly and a blower for supplying combustion air to the burner assembly. The system further includes a pilot assembly and a fuel supply for providing fuel to the pilot assembly. A pilot fan provides pilot air to the pilot assembly, the pilot fan being separate from the blower and provides air only to the pilot assembly.

Claims (18)

1. A pilot and burner assembly, comprising:
a burner assembly;
a blower supplying combustion air to said burner assembly;
a pilot assembly;
a fuel supply providing fuel to said pilot assembly; and a pilot fan providing pilot air to said pilot assembly, wherein said pilot fan is separate from said blower and provides air only to said pilot assembly.
2. The pilot and burner assembly of claim 1, further comprising:

a fuel valve assembly positioned between said fuel supply and said pilot assembly, said fuel valve assembly permitting only unidirectional flow of said fuel into said pilot assembly.
3. The pilot and burner assembly of claim 1, wherein:

said pilot assembly includes a pilot tube, said pilot tube accepting a mixture of said fuel from said fuel supply and said air from said pilot fan; and a flame disc positioned in fluid communication with said pilot tube, said flame disc containing apertures so as to create turbulence in said fuel and air mixture.
4. The pilot and burner assembly of claim 4, further comprising:

an electrode positioned downstream of said flame disc, said electrode being controllable to ignite said mixture.
5. The pilot and burner assembly of claim 2, further comprising:

an air valve assembly positioned between said pilot fan and said pilot assembly, said air valve assembly permitting only unidirectional flow of said pilot air into said pilot assembly.
6. The pilot and burner assembly of claim 5, further comprising:

a pressure switch assembly operably connected between said fuel valve assembly and said air valve assembly, said pressure switch assembly triggering actuation of said fuel valve assembly when said air valve assembly is actuated.
7. A pilot and burner assembly, comprising:

a burner assembly;
a blower supplying combustion air to said burner assembly;
a pilot assembly;
a fuel supply providing fuel to said pilot assembly;
a pilot fan providing pilot air to said pilot assembly;
said pilot assembly including a pilot tube, said pilot tube accepting a mixture of said fuel from said fuel supply and said air from said-pilot fan; and a flame disc positioned in fluid communication with said pilot tube, said flame disc containing apertures so as to create turbulence in said fuel and air mixture.
8. The pilot and burner assembly of claim 7, further comprising:

a fuel valve assembly positioned between said fuel supply and said pilot assembly, said fuel valve assembly permitting only unidirectional flow of said fuel into said pilot assembly.
9. The pilot and burner assembly of claim 1, wherein:

said pilot fan is separate from said blower and provides air only to said pilot assembly.
10. The pilot and burner assembly of claim 7, further comprising:

an electrode positioned downstream of said flame disc, said electrode being controllable to ignite said mixture.
11. The pilot and burner assembly of claim 8, further comprising:

an air valve assembly positioned between said pilot fan and said pilot assembly, said air valve assembly permitting only unidirectional flow of said pilot air into said pilot assembly.
12. The pilot and burner assembly of daim 11, further comprising:

a pressure switch assembly operably connected between said fuel valve assembly and said air valve assembly, said pressure switch assembly triggering actuation of said fuel valve assembly when said air valve assembly is actuated.
13. A method for controlling operation of a pilot and burner assembly, said method comprising the steps of:

providing a burner assembly;
supplying combustion air to said burner assembly via a blower;
providing a pilot assembly;
providing fuel to said pilot assembly via a fuel supply;
providing pilot air to said pilot assembly via a pilot fan, wherein said pilot fan is separate from said blower and provides air only to said pilot assembly.
14 14. The method for controlling operation of a pilot and burner assembly in accordance with claim 1, further comprising the steps of:

positioning a fuel valve assembly between said fuel supply and said pilot assembly, said fuel valve assembly permitting only unidirectional flow of said fuel into said pilot assembly.
15. The method for controlling operation of a pilot and burner assembly in accordance with claim 1, further comprising the steps of:

including a pilot tube in said pilot assembly, said pilot tube accepting a mixture of said fuel from said fuel supply and said air from said pilot fan;
positioning a flame disc in fluid communication with said pilot tube; and forming apertures in said flame disc so as to create turbulence in said fuel and air mixture.
16. The method for controlling operation of a pilot and burner assembly in accordance with claim 15, further comprising the steps of:

positioning an electrode downstream of said flame disc, said electrode being controllable to ignite said mixture.
17. The method for controlling operation of a pilot and burner assembly in accordance with claim 14, further comprising the steps of:

positioning an air valve assembly between said pilot fan and said pilot assembly, said air valve assembly permitting only unidirectional flow of said pilot air into said pilot assembly.
18. The method for controlling operation of a pilot and burner assembly in accordance with claim 17, further comprising the steps of:

operably connecting a pressure switch assembly between said fuel valve assembly and said air valve assembly, said pressure switch assembly triggering actuation of said fuel valve assembly when said air valve assembly is actuated.
CA2676467A 2008-08-20 2009-08-20 Boiler and pilot system Active CA2676467C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9030208P 2008-08-20 2008-08-20
US61/090,302 2008-08-20
US12/543,119 2009-08-18
US12/543,119 US20100047726A1 (en) 2008-08-20 2009-08-18 Boiler and pilot system

Publications (2)

Publication Number Publication Date
CA2676467A1 true CA2676467A1 (en) 2010-02-20
CA2676467C CA2676467C (en) 2012-09-25

Family

ID=41279493

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2676467A Active CA2676467C (en) 2008-08-20 2009-08-20 Boiler and pilot system

Country Status (3)

Country Link
US (1) US20100047726A1 (en)
EP (2) EP2674674A3 (en)
CA (1) CA2676467C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012058587A2 (en) * 2010-10-28 2012-05-03 Flare Industries, Inc. Hot surface ignition assembly for use in pilots for flaring, incineration, and process burners
JP6874325B2 (en) * 2016-10-27 2021-05-19 株式会社ノーリツ Hot water device
KR102401796B1 (en) 2017-04-13 2022-05-25 카딜라 핼쓰캐어 리미티드 Novel peptide-based PCSK9 vaccine

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905236A (en) * 1959-09-22 Pilot burner and igniter
US974040A (en) * 1910-06-04 1910-10-25 William Donley Gas-burner.
US2073448A (en) * 1933-03-09 1937-03-09 Western Electric Co Burner
US2484272A (en) * 1947-08-05 1949-10-11 Crowe John Marshall Fluid burner with auxiliary external oxygen supply
GB819256A (en) * 1955-11-09 1959-09-02 Orr & Sembower Inc Pilot ignition unit for fuel burners
US2966943A (en) * 1957-02-11 1961-01-03 Controls Co Of America Electric ignition assembly for liquid fuel burners
US3073121A (en) * 1958-02-06 1963-01-15 Bendix Corp Igniter
US3109481A (en) * 1960-02-19 1963-11-05 Standard Oil Co Burner igniter system
US3236284A (en) * 1963-01-02 1966-02-22 Joseph W Kemper Monitoring system for a combustion apparatus and the like
DE1197170B (en) * 1963-02-02 1965-07-22 Siemens Ag Device for feeding seed material to the MHD generator
US3265114A (en) * 1964-07-20 1966-08-09 Gen Dynamics Corp Ignitor-burner assembly
US3304988A (en) * 1965-10-06 1967-02-21 Babcock & Wilcox Co Ignitor
JPS4945647B1 (en) * 1969-08-07 1974-12-05
US3645511A (en) * 1970-03-18 1972-02-29 Afe Ind Inc Pilot for gas burner
US3893810A (en) * 1972-12-18 1975-07-08 La Clede Lientz Flare stack burner for odor and pollutant elimination
US3856457A (en) * 1972-12-29 1974-12-24 Air Prod & Chem Burner of the oxy-fuel type
US3911675A (en) * 1974-03-25 1975-10-14 Gen Motors Corp Keep-hot catalytic converter
US4059386A (en) * 1976-01-21 1977-11-22 A. O. Smith Corporation Combustion heating apparatus to improve operation of gas pilot burners
US4128388A (en) * 1977-05-12 1978-12-05 Challenge-Cook Bros., Inc. Geyseric burner assembly and method for combusting fuels
US4192642A (en) * 1978-04-17 1980-03-11 Selas Corporation Of America Universal pilot assembly
US4645450A (en) * 1984-08-29 1987-02-24 Control Techtronics, Inc. System and process for controlling the flow of air and fuel to a burner
US4597733A (en) * 1985-02-14 1986-07-01 Alvin Dean Gas heating system for dehydrators and the like
US4685425A (en) * 1985-02-14 1987-08-11 A. O. Smith Corporation Submersible chamber water heater
US5073104A (en) * 1985-09-02 1991-12-17 The Broken Hill Proprietary Company Limited Flame detection
US4878424A (en) * 1988-11-07 1989-11-07 Specialty Equipment Companies, Inc. Cooking apparatus
US4925093A (en) * 1988-11-09 1990-05-15 Mor-Flo Industries, Inc. Forced draft direct vent system for a water heater
US4938203A (en) * 1989-03-08 1990-07-03 Gas Research Institute Pulse combustion apparatus
US4924816A (en) * 1989-05-01 1990-05-15 Mor-Flo Industries, Inc. Water heater with flame spill-out prevention arrangement
US5022850A (en) * 1990-03-23 1991-06-11 Atlantic Richfield Company Pilot flame apparatus
FR2679626B1 (en) * 1991-07-23 1993-10-15 Air Liquide PULSED COMBUSTION PROCESS AND INSTALLATION.
JP3200779B2 (en) * 1992-11-10 2001-08-20 誠 西村 Pulse burner for brazing metal
US5347981A (en) * 1993-09-07 1994-09-20 Goodman Manufacturing Company, L.P. Pilot pressure switch and method for controlling the operation of a furnace
WO1998011389A1 (en) * 1996-09-13 1998-03-19 Robinson Willey Limited Testing device for gas pilot light
US6461148B1 (en) * 2000-09-28 2002-10-08 Mcdermott Technology, Inc. Compact, high-temperature, low-flow rate, liquid fuel-fired burner
US20020160326A1 (en) * 2001-04-26 2002-10-31 David Deng Gas pilot system and method having improved oxygen level detection capability and gas fueled device including the same
US7387089B2 (en) * 2004-09-03 2008-06-17 Rheem Manufacturing Company Water heater with cross-sectionally elongated raw fuel jet pilot orifice
US7849821B2 (en) * 2007-04-12 2010-12-14 Rheem Manufacturing Company Burner flashback detection and system shutdown apparatus
CA2714385C (en) * 2008-02-01 2013-12-31 Baso Gas Products, Llc Remotely actuated pilot valve, system and method
US8636503B2 (en) * 2008-07-16 2014-01-28 Honeywell International Inc. Pilot burner
US20100043775A1 (en) * 2008-08-21 2010-02-25 John Phillips Artificial log set assembly
FR2941286B1 (en) * 2009-01-16 2012-08-31 Air Liquide AIR-GAS PILOT BURNER THAT CAN OPERATE WITH OXYGEN.
US8512034B2 (en) * 2009-08-24 2013-08-20 Honeywell International Inc. Gas pilot burner assembly

Also Published As

Publication number Publication date
EP2157372B1 (en) 2014-10-08
EP2157372A3 (en) 2011-03-02
EP2157372A2 (en) 2010-02-24
EP2674674A3 (en) 2014-08-27
US20100047726A1 (en) 2010-02-25
CA2676467C (en) 2012-09-25
EP2674674A2 (en) 2013-12-18

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