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GB/T 38693-2020Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Thermoelectric flame supervision controls (English PDF)

燃气燃烧器和燃烧器具用安全和控制装置特殊要求热电式熄火保护装置

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

March 31, 2020

Implementation date

February 1, 2021

Scope

GB/T 38693-2020 is the English-translated version of 燃气燃烧器和燃烧器具用安全和控制装置特殊要求热电式熄火保护装置.

GB/T 38693-2020 is the Chinese standard "Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Thermoelectric flame supervision controls".

Its scope clause reads: This standard specifies thermoelectric flameout protection devices for burners and burning appliances that use urban gas specified in GB/T 13611 (to (Hereinafter referred to as "flame protection device") classification and grouping, structure and materials, requirements, test methods, inspection rules, marking, installation and operating instructions Books, packaging, transportation and storage.

This standard applies to gas burners and heating appliances with a maximum working pressure not greater than 500kPa and a nominal size not greater than DN50. Electric flameout protection device. Its clauses include terms and definitions.

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Document preview — GB/T 38693-2020

National Standard of the People's Republic of China

ICS: 91.140
Classification: P 45

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and grouping
4.1 Flameout protection device classification
4.2 Flameout protection device group
5 Structure and materials
5.1 General requirements
5.2 Structure
5.3 Material
5.4 Gas connection
6 Requirements
6.1 General requirements
6.2 Component requirements
6.3 Performance requirements
7 Test method
7.1 Test conditions
7.2 Component test
7.3 Performance test
8 Inspection rules
8.1 Factory inspection
8.2 Type inspection
9 Signs, installation and operating instructions
9.1 Sign
9.2 Installation and operating instructions
9.3 Warning notice
10 Packaging, transportation and storage
Appendix A (informative appendix) Structural changes of this standard compared with ISO 23551-6.2014
Appendix B (informative appendix) Technical differences between this standard and ISO 23551-6.2014 and their reasons
Appendix C (informative appendix) This standard supports GB 16914-2012 basic requirements of clause correspondence table
Appendix D (informative appendix) schematic diagram of flameout protection device form and composition
Appendix E (informative appendix) Thermocouple installation for flame sensing
Appendix F (informative appendix) Test device for separate inspection of solenoid valve

1 Scope

This standard specifies thermoelectric flameout protection devices for burners and burning appliances that use urban gas specified in GB/T 13611 (to (Hereinafter referred to as "flame protection device") classification and grouping, structure and materials, requirements, test methods, inspection rules, marking, installation and operating instructions

Books, packaging, transportation and storage.

This standard applies to gas burners and heating appliances with a maximum working pressure not greater than 500kPa and a nominal size not greater than DN50.

Electric flameout protection device.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

Pieces. For undated references, the latest version (including all amendments) applies to this document.

GB/T 2828.1 Sampling inspection procedure by attributes Part 1.Batch inspection sampling plan retrieved by acceptance quality limit (AQL) (GB/T 2828.1-2012, ISO 2859-1.1999, IDT)

GB/T 13611 Classification and basic characteristics of urban gas

GB/T 30597-2014 General requirements for safety and control devices for gas burners and burning appliances (ISO 23550.2011,

MOD)

3 Terms and definitions

The following terms and definitions defined in GB/T 30597 apply to this document. For ease of use, the following is repeated

Certain terms and definitions in GB/T 30597.

3.1 Thermoelectric flameout protection device

The valve body, solenoid valve, and thermocouple can respond to the thermoelectric potential generated by the thermocouple, and make it lead to the main burner or the main burner and ignition

The gas passage of the burner is opened, and after the monitored flame is extinguished, the device can automatically cut off the gas passage.

Note. See Appendix D for the form and composition diagram of the flameout protection device.

3.2 Solenoid valve

A type of thermoelectric potential generated by a thermocouple installed in the valve body to maintain the open state of the gas path, and can be used after the monitored flame is extinguished

The part that closes the gas passage.

3.3 Thermocouple

The flame sensing element responds to the temperature of the monitored flame to generate thermoelectric potential.

3.4 Ignition interlock

As long as the passage to the main burner is opened, the component that can prevent the igniter from operating.

GB/T 39488 | GB/T 39485 | GB/T 39434 | GB/T 45384 | GB 45833 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 51 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 2859 · ISO 23550.2011

Cited by

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