1 Scope
This standard specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation and storage of industrial oil and gas burners.
This standard is applicable to the design, manufacturing and acceptance of mechanically ventilated industrial oil and gas burners [hereinafter referred to as "burner(s)"] with output power of not less than 60 kW. This standard does not apply to the design, manufacturing and acceptance of naturally ventilated burners.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 1236-2000 Industrial fans — Performance testing using standardized airways (idt ISO 5801: 1997)
GB/T 2423.1-2001 Environmental testing for electric and electronic and electronic products — Part 2: Test methods — Tests A: Cold (idt IEC 60068-2-1: 1990)
GB/T 2423.2-2001 Environmental testing for electric and electronic products — Part 2: Test methods — Tests B: Dry heat (idt IEC 60068-2-2: 1974)
GB/T 2423.3-1993 Basic environmental testing procedures for electric and electronic products — Test Ca: Damp heat, steady state (eqv IEC 68-2-3:1984)
GB/T 4942.2-1993 Degrees of protection provided by enclosures for low-voltage apparatus (eqv IEC 947-1: 1988)
GB/T 13384-1992 General specification for packagings of mechanical and electrical products
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
pressure atomizing burner
burner that atomizes and burns oil by the action of oil pressure
3.2
rotary cup burner
burner that atomizes and burns oil through the high-speed rotation of the rotary cup and the purging of primary air
3.3
low-pressure air atomizing burner
burner that atomizes and burns oil using air under pressure of not more than 0.02 MPa and consumption of (60 ~ 100)% of the total combustion air
3.4
high pressure medium atomizing burner
burner that atomizes and burns oil using compressed air or steam under pressure of not less than 0.30 MPa, which may be classified into compressed air atomizing burner and steam atomizing burner by atomizing medium
3.5
dual fuel (gas and oil) burner
burner that can use oil or gas alone as fuel, some types of which may also burn mixed oil and gas
3.6
maximum flow of fuel
maximum consumption of fuel that a burner can perform normal combustion in unit time
3.7
minimum flow of fuel
minimum consumption of fuel that a burner can perform normal combustion in unit time
3.8
normal combustion
under the specified conditions, working state in which the performance and parameter changes of the burner in the combustion process are within the predetermined range, and the flame shall be free of strong pulsation, fire loss and black or yellow smoke
3.9
pre-purge
process of burner forcing air supply into the combustion chamber to purge combustible gas before ignition and combustion
3.10
post-purge
process of burner forcing air supply into the combustion chamber to purge combustible gas after extinction of ignition flame
3.11
safety time for establishing ignition flame
first safety time
maximum time interval in which the ignition fuel control valve is allowed to be open before the ignition flame is formed in the burner
3.12
safety time for establishing main flame
second safety time
maximum time interval in which the main flame fuel control valve is allowed to be open before the main flame is formed in the burner
3.13
safety time for extinction of flame
third safety time
maximum time interval in which the main flame fuel control valve is allowed to remain open after the extinction of main flame in the combustion process of burner
3.14
sequent regulation
within the load regulating range of the burner, regulation mode that the amount of fuel and combustion air entering the burner may be controlled smoothly in proportion
3.15
stage regulation
within the load regulating range of the burner, regulation mode that the amount of fuel and combustion air entering the burner may be controlled by stage in proportion
3.16
turndown ratio of load
under normal combustion conditions, ratio of the maximum flow of fuel to the minimum flow for a single burner
3.17
lock-out; lock up
safe cut-off in which the burner cannot be automatically restarted according to the program without manual re-setting after the interruption of operation program due to fault
3.18
re-setting
process of restoring all movable parts of an actuated electrical appliance to the original position, including manual and automatic re-settings
3.19
atomizing viscosity
maximum permissible viscosity of oil entering the atomizer provided that the burner meets the requirements of normal combustion
3.20
atomizing medium consumption
mass fraction of consumed atomizing medium and oil volume provided the burner meets the requirement of normal combustion at the maximum flow of fuel
3.21
circle exit of burner
exit where the oil mist or gas output from the burner is mixed with combustion air and starts to ignite and burn
3.22
coking
hard coking carbon formed by dehydrogenation and decomposition of oil adhered to circle exit of burner or inner wall of combustion chamber rafter high temperature baking
3.23
combustion chamber pressure
flue gas pressure in the combustion chamber of burner measured under normal combustion state
3.24
cold state
operation state of flameless burner
3.25
heat state
operation state of flamed burner
3.26
simulated signal
in the burner performance test, equivalent signal input to the automation system which imitates parameter signal of the actual operating condition
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test method
6 Test rules
7 Marking
8 Packaging, transportation, and storage
1 Scope
This standard specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation and storage of industrial oil and gas burners.
This standard is applicable to the design, manufacturing and acceptance of mechanically ventilated industrial oil and gas burners [hereinafter referred to as "burner(s)"] with output power of not less than 60 kW. This standard does not apply to the design, manufacturing and acceptance of naturally ventilated burners.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 1236-2000 Industrial fans — Performance testing using standardized airways (idt ISO 5801: 1997)
GB/T 2423.1-2001 Environmental testing for electric and electronic and electronic products — Part 2: Test methods — Tests A: Cold (idt IEC 60068-2-1: 1990)
GB/T 2423.2-2001 Environmental testing for electric and electronic products — Part 2: Test methods — Tests B: Dry heat (idt IEC 60068-2-2: 1974)
GB/T 2423.3-1993 Basic environmental testing procedures for electric and electronic products — Test Ca: Damp heat, steady state (eqv IEC 68-2-3:1984)
GB/T 4942.2-1993 Degrees of protection provided by enclosures for low-voltage apparatus (eqv IEC 947-1: 1988)
GB/T 13384-1992 General specification for packagings of mechanical and electrical products
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
pressure atomizing burner
burner that atomizes and burns oil by the action of oil pressure
3.2
rotary cup burner
burner that atomizes and burns oil through the high-speed rotation of the rotary cup and the purging of primary air
3.3
low-pressure air atomizing burner
burner that atomizes and burns oil using air under pressure of not more than 0.02 MPa and consumption of (60 ~ 100)% of the total combustion air
3.4
high pressure medium atomizing burner
burner that atomizes and burns oil using compressed air or steam under pressure of not less than 0.30 MPa, which may be classified into compressed air atomizing burner and steam atomizing burner by atomizing medium
3.5
dual fuel (gas and oil) burner
burner that can use oil or gas alone as fuel, some types of which may also burn mixed oil and gas
3.6
maximum flow of fuel
maximum consumption of fuel that a burner can perform normal combustion in unit time
3.7
minimum flow of fuel
minimum consumption of fuel that a burner can perform normal combustion in unit time
3.8
normal combustion
under the specified conditions, working state in which the performance and parameter changes of the burner in the combustion process are within the predetermined range, and the flame shall be free of strong pulsation, fire loss and black or yellow smoke
3.9
pre-purge
process of burner forcing air supply into the combustion chamber to purge combustible gas before ignition and combustion
3.10
post-purge
process of burner forcing air supply into the combustion chamber to purge combustible gas after extinction of ignition flame
3.11
safety time for establishing ignition flame
first safety time
maximum time interval in which the ignition fuel control valve is allowed to be open before the ignition flame is formed in the burner
3.12
safety time for establishing main flame
second safety time
maximum time interval in which the main flame fuel control valve is allowed to be open before the main flame is formed in the burner
3.13
safety time for extinction of flame
third safety time
maximum time interval in which the main flame fuel control valve is allowed to remain open after the extinction of main flame in the combustion process of burner
3.14
sequent regulation
within the load regulating range of the burner, regulation mode that the amount of fuel and combustion air entering the burner may be controlled smoothly in proportion
3.15
stage regulation
within the load regulating range of the burner, regulation mode that the amount of fuel and combustion air entering the burner may be controlled by stage in proportion
3.16
turndown ratio of load
under normal combustion conditions, ratio of the maximum flow of fuel to the minimum flow for a single burner
3.17
lock-out; lock up
safe cut-off in which the burner cannot be automatically restarted according to the program without manual re-setting after the interruption of operation program due to fault
3.18
re-setting
process of restoring all movable parts of an actuated electrical appliance to the original position, including manual and automatic re-settings
3.19
atomizing viscosity
maximum permissible viscosity of oil entering the atomizer provided that the burner meets the requirements of normal combustion
3.20
atomizing medium consumption
mass fraction of consumed atomizing medium and oil volume provided the burner meets the requirement of normal combustion at the maximum flow of fuel
3.21
circle exit of burner
exit where the oil mist or gas output from the burner is mixed with combustion air and starts to ignite and burn
3.22
coking
hard coking carbon formed by dehydrogenation and decomposition of oil adhered to circle exit of burner or inner wall of combustion chamber rafter high temperature baking
3.23
combustion chamber pressure
flue gas pressure in the combustion chamber of burner measured under normal combustion state
3.24
cold state
operation state of flameless burner
3.25
heat state
operation state of flamed burner
3.26
simulated signal
in the burner performance test, equivalent signal input to the automation system which imitates parameter signal of the actual operating condition
Contents of GB/T 19839-2005
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test method
6 Test rules
7 Marking
8 Packaging, transportation, and storage
