1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 22967:2010Forced draught gas burnersBS ISO 22967:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 22967:2010.The UK participatio
2、n in its preparation was entrusted to TechnicalCommittee GSE/27, Automatic gas and oil burners.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsibl
3、e for its correctapplication. BSI 2010ISBN 978 0 580 55429 2ICS 27.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since p
4、ublicationDate Text affectedBS ISO 22967:2010Reference numberISO 22967:2010(E)ISO 2010INTERNATIONAL STANDARD ISO22967First edition2010-11-01Forced draught gas burners Brleurs air souffl pour combustibles gazeux BS ISO 22967:2010ISO 22967:2010(E) PDF disclaimer This PDF file may contain embedded type
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7、mized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2010 All rights reserved. U
8、nless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. IS
9、O copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 22967:2010ISO 22967:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword .v Introductionv
10、i 1 Scope1 2 Normative references1 3 Terms and definitions .2 3.1 General .2 3.2 Combustible gases3 3.3 Test rig and combustion chamber.5 3.4 Composition of the gaseous combustion products 6 3.5 Burner operation .6 3.6 Gas line components 8 3.7 Adjustment, control and safety devices .8 3.8 Sequencin
11、g times10 3.9 Combustion11 3.10 Diagrams 11 4 Constructional and operational requirement .11 4.1 Operation with different fuels 11 4.2 Construction 12 4.3 Equipment 14 4.4 Functional and operational requirements.25 5 Test methods .35 5.1 General .35 5.2 Functional tests .45 5.3 Operation46 5.4 Tests
12、 to be carried out at points identified on working and test diagrams 49 5.5 Combustion53 5.6 Start-up.53 5.7 Obtaining the nominal heat input 54 5.8 Electrical safety .55 6 Marking, labelling and packaging55 6.1 General .55 6.2 Data plate .55 6.3 Other markings 56 6.4 Instructions for application, i
13、nstallation, adjustment, commissioning, maintenance and operation 56 6.5 Marking on the packaging 57 Annex A (informative) Determination of combustion characteristics Carbon monoxide and nitrogen oxides and conversion factors.58 Annex B (informative) Examples of control box sequencing.61 Annex C (in
14、formative) Tests.63 Annex D (informative) Use of alternative gas lines and test documentation .65 Annex E (informative) Air-proving device check .66 Annex F (informative) Additional recommendations for specific applications67 Annex G (normative) Requirements specific to the USA .69 Annex H (normativ
15、e) Requirements specific to European countries72 BS ISO 22967:2010ISO 22967:2010(E) iv ISO 2010 All rights reservedAnnex I (normative) Requirements specific to Japan 75 Annex J (normative) Requirements specific to Australia 78 Annex K (normative) Requirements specific to Korea. 80 Annex L (informati
16、ve) Electrical interfaces for burners . 83 Bibliography. 87 BS ISO 22967:2010ISO 22967:2010(E) ISO 2010 All rights reserved vForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internation
17、al Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO,
18、 also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical comm
19、ittees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the p
20、ossibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 22967 was prepared by Technical Committee ISO/TC 109, Oil and gas burners. BS ISO 22967:2010ISO 22967:2010(E) vi ISO 2010 Al
21、l rights reservedIntroduction This International Standard is primarily intended for application to automatic forced draught gas burners having a combustion air fan, operated with gaseous fuels and intended to be marketed as a complete assembly. Many burners are designed to operate on a wide range of
22、 fuel gases with little or no modification other than adjustment of the air supply. When applying the requirements specific to a country or region, which are given in the various annexes, it is essential that a level of safety be ensured that is at least equivalent to that provided for by the requir
23、ements of the main body of this International Standard. BS ISO 22967:2010INTERNATIONAL STANDARD ISO 22967:2010(E) ISO 2010 All rights reserved 1Forced draught gas burners 1 Scope This International Standard specifies the terminology, test procedures and general requirements for the construction and
24、operation of automatic forced draught gas burners, and the provision of related control and safety devices. It is applicable to the following: a) automatic gas burners (hereinafter called “ burners” ) fitted with a combustion air fan that are equipped as described in Clause 4, intended for use in ap
25、pliances of different types and operated with fuel gases; b) total pre-mixed burners and nozzle mixed burners; c) single burners with a single combustion chamber, for which, where such burners are fitted to a single appliance, the requirements of the relevant appliance standard also apply; d) single
26、-fuel and dual-fuel burners when operating only on gas; e) the gas function of dual-fuel burners designed to operate simultaneously on gaseous and liquid fuels, which, for the latter, the requirements of ISO 22968 also apply. It is not applicable to burners used in direct fired processes either with
27、 defined combustion chamber applications or where the combustion chamber wall surface temperature is greater than 750 C or the heat-transfer medium temperature is greater than 500 C. 2 Normative references The following referenced documents are indispensable for the application of this document. For
28、 dated references only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) applies. ISO 7-1, Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation ISO 228-1, Pipe threads
29、where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation ISO 1129, Steel tubes for boilers, superheaters and heat exchangers Dimensions, tolerances and conventional masses per unit length ISO 3183, Petroleum and natural gas industries Stee l pipe for pip
30、eline transportation systems ISO 7005 (all parts), Pipe flanges ISO 9329-1, Seamless steel tubes for pressure purposes Technical delivery conditions Part 1: Unalloyed steels with specified room temperature properties BS ISO 22967:2010ISO 22967:2010(E) 2 ISO 2010 All rights reservedISO 9330-1, Welded
31、 steel tubes for pressure purposes Techni cal delivery conditions Part 1: Unalloyed steel tubes with specified room temperature properties ISO 22968, Forced draught oil burners ISO 23551-1, Safety and control devices for gas burners and gas-burning appliances Particular requirements Part 1: Automati
32、c valves ISO 23551-2, Safety and control devices for gas burners and gas-burning appliances Particular requirements Part 2: Pressure regulators ISO 23551-3, Safety and control devices for gas burners and gas-burning appliances Particular requirements Part 3: Gas/air ratio controls, pneumatic type IS
33、O 23551-4, Safety and control devices for gas burners and gas-burning appliances Particular requirements Part 4: Valve-proving systems for automatic shut-off valves ISO 23552-1, Safety and control devices for gas and/or oil burners and gas and/or oil appliances Particular requirements Part 1: Fuel/a
34、ir ratio controls, electronic type IEC 60204-1, Safety of machinery Electrical equipment of machines Part 1: General requirements IEC 60335-1:2001, Household and similar electrical appliances Safety Part 1: General requirements , as amended 2004 and 2006 IEC 60335-2-102:2004, Household and similar e
35、lectrical appliances Safety Part 2-102: Particular requirements for gas, oil and solid-fuel burning appliances having electrical connections IEC 60529, Degrees of protection provided by enclosures (IP code) IEC 60730-2-5:2004, Automatic electrical controls for household and similar use Part 2-5: Par
36、ticular requirements for automatic electrical burner control systems IEC 60730-2-6, Automatic electrical controls for household and similar use Part 2-6: Particular requirements for automatic electrical pressure sensing controls including mechanical requirements IEC 60947-5-1, Low-voltage switchgear
37、 and controlgear Part 5-1: Control circuit devices and switching elements Electromechanical control circuit devices IEC 61810-1, Electromechanical elementary relays Part 1: General requirements IEC 60747-5-2, Discrete semiconductor devices and integrated circuits Part 5-2: Optoelectronic devices Ess
38、ential ratings and characteristics 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 General 3.1.1 forced draught burner burner in which the total air for combustion is supplied by means of a fan BS ISO 22967:2010ISO 22967:2010(E) ISO 2010 All
39、rights reserved 33.1.2 automatic forced draught burner burner that is fitted with an automatic ignition, flame monitoring and burner control devices where the ignition, flame monitoring and the on/off switching of the burner occur automatically NOTE The heat input of the burner can be adjusted durin
40、g operation either automatically or manually. 3.1.3 dual-fuel burner burner in which both gaseous and liquid fuels can be burnt either simultaneously or in succession 3.1.4 total pre-mixed burner burner in which part or all of the air for complete combustion of the gas is mixed with the gas upstream
41、 of the mixture outlet ports 3.1.5 nozzle mixed burner burner in which part or all of the air required for combustion of the gas is mixed with the gas at, or downstream of, the air and gas ports 3.1.6 integrated ignition burner burner with direct main ignition burner at reduced rate with bypass star
42、t gas supply 3.1.7 start gas rate gas rate ignited by the ignition device during the start-up of the burner 3.1.8 combustion chamber part of the appliance in which the combustion takes place 3.1.9 burner head device for mixing fuel and air comprising, for example, a stabilizing disc and nozzle, that
43、 keeps the flame in its safe position during operation of the burner 3.1.10 heat-transfer medium gaseous or liquid substance for the transport of heat energy from the appliance 3.1.11 appliance heat generator into which the burner fires having a combustion chamber and heat exchanger are used to indi
44、rectly transmit the heat input from the burner combustion gases to the heat-transfer medium 3.2 Combustible gases 3.2.1 reference conditions conditions corresponding to a temperature of 15 C and a pressure of 0,101 325 MPa, unless otherwise specified NOTE Based on standard reference conditions speci
45、fied in ISO 13443. BS ISO 22967:2010ISO 22967:2010(E) 4 ISO 2010 All rights reserved3.2.2 calorific value quantity of heat produced by the combustion, at a constant pressure equal to 0,101 325 MPa, of unit volume or mass of gas, the constituents of the combustible mixture being taken at reference co
46、nditions and the products of combustion being brought back to the same conditions NOTE A distinction is made between a) the superior calorific value (Hs) in which the water produced by combustion is assumed to be condensed, and b) the inferior calorific value (Hi) in which the water produced by comb
47、ustion is assumed to be in the vapour state. The units used for calorific value are either c) megajoules per cubic metre (MJ/m3) of dry gas at the reference conditions, or d) megajoules per kilogram (MJ/kg) of dry gas. See ISO 14532. 3.2.3 relative density d g162fuel gasg178 ratio of the masses of e
48、qual volumes of dry gas and dry air at the same conditions of temperature and pressure NOTE Adapted from ISO 80000-4:2006, 4-3. 3.2.4 Wobbe index ratio of the calorific value of a gas per unit volume and the square root of its relative density under the same reference conditions NOTE 1 The Wobbe ind
49、ex is said to be superior (Ws) or inferior (Wi) depending on whether the calorific value used is superior or inferior. NOTE 2 The units used for the Wobbe index are either a) megajoules per cubic metre (MJ/m3) of dry gas at the reference conditions, or b) megajoules per kilogram (MJ/kg) of dry gas. NOTE 3 Adapted from ISO 14532:2005, definition 2.6.4.4. 3.2.5 gas pressure static pressure of the moving gas, relative to the atmospheric pressure, measured at right angles to the di
