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ISO 22968:2010 Forced draught oil burners, 2010
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 General
- 3.2 Fuel mass flow rate and performance
- 3.3 Test rig and combustion chamber
- 3.4 Composition of the gaseous combustion products
- 3.5 Adjustment, control and safety devices
- 3.6 Sequencing times
- 3.7 Diagrams
- 4 Classification of oil burners [Go to Page]
- 4.1 General
- 4.2 Types of atomization [Go to Page]
- 4.2.1 Mechanical atomization by pressurization of the combustion liquid
- 4.2.2 Atomization by auxiliary fluid
- 4.3 Automatic oil burner control methods [Go to Page]
- 4.3.1 On-off control (single-stage burner)
- 4.3.2 Multi-stage control (two- and multi-stage burner)
- 4.3.3 Modulating control (modulating burner)
- 4.4 Means of ignition [Go to Page]
- 4.4.1 Automatic electric ignition [Go to Page]
- 4.4.1.1 General
- 4.4.1.2 Ignition by controlled spark
- 4.4.1.3 Ignition by non-controlled spark
- 4.4.2 Automatic ignition with liquid or gaseous fuels [Go to Page]
- 4.4.2.1 General
- 4.4.2.2 Ignition by controlled ignition burner
- 4.4.2.3 Ignition by non-controlled ignition burner
- 5 Constructional and operational requirement [Go to Page]
- 5.1 Construction and operation [Go to Page]
- 5.1.1 General design [Go to Page]
- 5.1.1.1 Materials
- 5.1.1.2 Design
- 5.1.1.3 Mounting
- 5.1.1.4 Accessibility for maintenance and use
- 5.1.2 Equipment [Go to Page]
- 5.1.2.1 Motors, fans and pumps
- 5.1.2.2 Electrical safety [Go to Page]
- 5.1.2.2.1 Electrical safety of devices
- 5.1.2.2.2 Electrical safety of the burner [Go to Page]
- 5.1.2.2.2.1 General
- 5.1.2.2.2.2 Modifications, additions and replacements
- 5.1.2.3 Adjustable air damper
- 5.1.2.4 Installation of automatic burner control unit
- 5.1.2.5 Rubber hoses and hose assemblies
- 5.1.2.6 Connections
- 5.1.2.7 Safety shut-off devices and oil pressure switches [Go to Page]
- 5.1.2.7.1 Safety shut-off devices
- 5.1.2.7.2 Burners with a flow rate less than or equal to 30 kg/h
- 5.1.2.7.3 Burners with a flow rate greater than 30 kg/h
- 5.1.2.8 Fuel preheating [Go to Page]
- 5.1.2.8.1 General
- 5.1.2.8.2 Heat sources
- 5.1.2.8.3 Preheating temperature
- 5.1.2.8.4 Control of preheating temperature
- 5.1.2.8.5 Pressurized preheaters
- 5.1.2.9 Ignition device
- 5.1.2.10 Flame detector device [Go to Page]
- 5.1.2.10.1 General
- 5.1.2.10.2 Flame detector device with sensor for the visible range of light
- 5.1.2.10.3 System requirements
- 5.1.2.11 Airproving device
- 5.1.2.12 Fuel/air ratio control device
- 5.1.2.13 Automatic burner control unit
- 5.1.2.14 Pressure test points
- 5.1.2.15 Interfacing with oil appliances
- 5.1.3 Operating requirements [Go to Page]
- 5.1.3.1 Shut-down
- 5.1.3.2 Protection of the oil and air supply
- 5.1.4 Operation with dual fuel supply or simultaneous supply
- 5.2 Safety devices [Go to Page]
- 5.2.1 General
- 5.2.2 Ignition safety times for start-up
- 5.2.3 Non-volatile lock-out, recycling and ignition restoration of the oil burner
- 5.2.4 Pre-purging of the combustion chamber [Go to Page]
- 5.2.4.1 For nominal fuel mass flow rates less than 30 kg/h
- 5.2.4.2 For nominal fuel mass flow rates greater than 30 kg/h
- 5.2.5 Ensuring adequate oil preheating
- 5.3 Spurious light signals
- 5.4 Combustion
- 5.5 Combustion product quality [Go to Page]
- 5.5.1 General
- 5.5.2 Smoke number
- 5.5.3 Unburnt hydrocarbons
- 5.5.4 Emission classes for burners
- 5.6 Combustion quality of the combustion products for other liquid fuels
- 5.7 Excess air ratio
- 5.8 Operational requirements [Go to Page]
- 5.8.1 External soundness of fuel-carrying parts
- 5.8.2 Resistance of the burner to overheating
- 5.8.3 Temperatures of the control and safety devices
- 5.8.4 Ignition, operation and flame stability
- 5.8.5 Heat input range of the burner
- 5.8.6 Dual-fuel burner
- 5.8.7 Working and test diagrams [Go to Page]
- 5.8.7.1 Working diagram
- 5.8.7.2 Test diagram
- 5.8.8 Determination of flame stability and the safe range of operation
- 6 Test methods [Go to Page]
- 6.1 General
- 6.2 Ambient test conditions
- 6.3 Combustion test chamber [Go to Page]
- 6.3.1 General
- 6.3.2 Test rig for a heat input of less than or equal to 2,4 MW
- 6.3.3 Test rig for a heat input greater than 2,4 MW
- 6.3.4 Heat-transfer medium
- 6.3.5 Evacuation of the combustion products [Go to Page]
- 6.3.5.1 Electrical supply
- 6.3.5.2 Installation
- 6.4 Measuring equipment [Go to Page]
- 6.4.1 General
- 6.4.2 Determination of CO2 or O2 as well as NOx, CO and CxHy content of the combustion gases
- 6.4.3 Determination of the smoke number
- 6.5 Measuring accuracies [Go to Page]
- 6.5.1 Measuring instrument accuracies
- 6.5.2 Measurement uncertainties
- 6.6 Test conditions [Go to Page]
- 6.6.1 Fuel to be used
- 6.6.2 Testing
- 6.7 Test programme [Go to Page]
- 6.7.1 General
- 6.7.2 Tests to be carried out [Go to Page]
- 6.7.2.1 Setting and duration
- 6.7.2.2 Tests in accordance with the test diagrams [Go to Page]
- 6.7.2.2.1 General
- 6.7.2.2.2 Tests at test point Hp1
- 6.7.2.2.3 Tests at test point Hp2
- 6.7.2.2.4 Tests at test point Hp3
- 6.7.2.2.5 Tests at test point 4
- 6.7.2.2.6 Tests at test point 5
- 6.7.2.2.7 Tests at test point HP6
- 6.7.2.2.8 Summary
- 6.7.2.3 Functional test
- 6.7.3 Result of the completed tests, test report
- 6.7.4 Electrical voltage conditions
- 6.7.5 Starting test
- 6.7.6 Testing during continuous operation in the case of two-stage, multi-stage or modulating burners
- 6.7.7 Burners with separate fan
- 6.8 Replacement of individual parts and equivalent components
- 6.9 Electrical safety
- 7 Conformity evaluation
- 8 Marking, labelling and packaging [Go to Page]
- 8.1 General
- 8.2 Data plate
- 8.3 Other markings
- 8.4 Instructions for application, installation, commissioning, adjustment, maintenance and operation [Go to Page]
- 8.4.1 Application, installation, commissioning and adjustment
- 8.4.2 Operation and maintenance
- 8.5 Marking on the packaging [Go to Page]
