SY/T 7807-2024 Technical code of practice for small liquefled natural gas vaporizing station English, Anglais, Englisch, Inglés, えいご
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ICS
E
Professional standard of the People's Republic of China
SY/T 7807-2024
Technical code of practice for small liquefied natural gas vaporizing station
小型液化天然气气化站技术规程
(English Translation)
Issue date: 2024-09-24 Implementation date: 2025-03-24
Issued by National Development and Reform Commission, P.R.C
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Basic Requirements
4.1 General Requirements
4.2 Volume Requirements for Vaporizing Stations
5 Site Selection and Layout
5.1 Site Selection
5.2 Layout
6 Process Design
6.1 General Requirements
6.2 Storage Facilities
6.3 Unloading and Self-Pressurization Devices
6.4 Vaporization Facilities
6.5 Pressure Regulation, Metering, and Odorization Devices
6.6 Venting Facilities
6.7 Pipelines and Components
7 Design of Ancillary Facilities
7.1 Fire Protection
7.2 Water Supply and Drainage
7.3 Power Supply and Distribution
7.4 Lightning Protection and Static Electricity Prevention
7.5 Security and Protection
7.6 Heating and Ventilation
7.7 Buildings (Structures)
7.8 Greening
8 Construction and Acceptance
8.1 General Requirements
8.2 Material and Equipment Inspection
8.3 Civil Engineering
8.4 Equipment Installation Engineering
8.5 Pipeline Engineering
8.6 Electrical and Instrumentation Engineering
8.7 Anti-corrosion and Insulation Engineering
8.8 Drying Engineering
8.9 Completion Documentation
9 Operation and Maintenance
9.1 General Requirements
9.2 Station Facility Operation and Maintenance
9.3 Fault Emergency Repair
Appendix A (Normative) Start and End Points for Distance Calculation
Appendix B (Normative) Classification and Scope of Explosion Hazardous Areas in Electrical Premises of Vaporizing Stations
Appendix C (Informative) List of Common Faults in Vaporizing Stations
Bibliography
1 Scope
This document specifies the technical requirements for the design, construction, acceptance, operation, and maintenance of small liquefied natural gas vaporizing stations.
This document applies to the design, construction, acceptance, operation, and maintenance of small LNG vaporizing stations that supply natural gas to various users in cities, towns, or residential areas, with a total geometric volume not exceeding 180 m³ and a single tank geometric volume not exceeding 60 m³.
2 Normative References
The following documents contain provisions which, through normative reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 150 (all parts) Pressure vessels
GB 3096 Environmental quality standard for noise
GB/T 4272 General principles for thermal insulation technique of equipment and pipes
GB 8624 Classification for burning behavior of building materials and products
GB 12348 Emission standard for industrial enterprises noise at boundary
GB/T 14976 Seamless stainless steel pipes for fluid transport
GB/T 17393 Specification for thermal insulation materials for covering austenitic stainless steel
GB 17820 Natural gas
GB/T 18442 (all parts) Static vacuum insulated cryogenic pressure vessels
GB/T 19204 General characteristics of liquefied natural gas
GB/T 20801 (all parts) Specification for pressure piping — Industrial piping
GB/T 21447 Specification for external corrosion control for steel pipeline
GB/T 24159 Welded insulated cylinders
GB/T 24918 Emergency shut-off valve for cryogenic service
GB/T 24925 Low temperature valves — Technical specifications
GB/T 33000 Basic standard for enterprise safety production standardization
GB/T 38753 Liquefied natural gas
GB/T 38810 Seamless stainless steel pipes for liquefied natural gas
GB/T 50011 Standard for seismic design of buildings
GB 50015 Standard for design of building water supply and drainage
GB 50016 Code for fire protection design of buildings
GB 50019 Code for design of heating, ventilation and air conditioning for industrial buildings
GB 50026 Standard for engineering surveying
GB 50028 Code for design of city gas engineering
GB 50032 Code for seismic design of outdoor water supply, sewerage, gas and heating engineering
GB 50052 Code for design of electric power supply systems
GB 50057 Code for design of lightning protection of buildings
GB 50058 Code for design of electrical installations in explosive atmospheres
GB 50108 Technical code for waterproofing of underground works
GB 50126 Code for construction of industrial equipment and pipeline insulation engineering
GB 50140 Code for design of fire extinguisher arrangement in buildings
GB 50156-2021 Technical standard for automobile gasoline, gas and hydrogen filling stations
GB 50168 Standard for construction and acceptance of cable line in electrical equipment installation engineering
GB 50169 Code for construction and acceptance of grounding connection electric equipment installation engineering
GB 50171 Code for construction and acceptance of panels, cabinets and secondary circuit wiring in electrical equipment installation engineering
GB 50187 Code for design of general plan of industrial enterprises
GB 50191 Code for seismic design of special structures
GB 50202 Standard for acceptance of construction quality of building foundation
GB 50203 Code for acceptance of construction quality of masonry structures
GB 50204 Code for acceptance of construction quality of concrete structures
GB 50205 Standard for acceptance of construction quality of steel structures
GB 50207 Code for acceptance of construction quality of roof
GB 50209 Code for acceptance of construction quality of building ground
GB 50210 Standard for acceptance of construction quality of building decoration
GB 50223 Standard for classification of seismic protection of building constructions
GB 50231 General specifications for installation construction and acceptance of mechanical equipment
GB 50242 Code for acceptance of construction quality of building water supply, drainage and heating works
GB 50257 Code for construction and acceptance of electrical installations in explosive and fire hazardous environments in electrical equipment installation engineering
GB 50264 Code for design of industrial equipment and pipeline insulation engineering
GB 50303 Code for acceptance of electrical construction quality of building
GB 50316 Code for design of industrial metallic piping
GB 50351 Code for design of fire dike in tank farm
GB 50461 Code for acceptance of construction quality of petrochemical static equipment installation
GB 50484 Safety technical standard for construction of petrochemical engineering
GB 50493 Standard for design of combustible gas and toxic gas detection and alarm for petrochemical industry
GB 50517 Code for construction quality acceptance of petrochemical metallic piping
GB 50650 Code for design of lightning protection of petrochemical plants
GB 50974 Technical code for fire protection water supply and hydrant systems
GB/T 51257 Code for design of cryogenic LNG piping
GB/T 51455 Standard for construction and acceptance of city gas distribution engineering
GB 55009 Project code for gas engineering
GB 55020 General code for water supply and drainage, water saving in building
GBJ 97 Specification for construction and acceptance of cement concrete pavement
CJJ 51 Safety technical specification for operation, maintenance and repair of urban gas facilities
CJJ/T 148 Technical specification for odorization of city gas
JTG/T 3610 Technical specification for construction of highway subgrades
NB/T 47013 (all parts) Non-destructive testing of pressure equipments
NB/T 47059 Tank containers for refrigerated liquefied gases
SH/T 3022 Specification for design of anti-corrosion of equipment and piping in petrochemical industry
SH/T 3097 Specification for design of static electricity grounding in petrochemical industry
SH/T 3510 Code for construction quality acceptance of concrete foundation engineering for petrochemical equipment
SH/T 3551 Code for construction and acceptance of instrumentation engineering in petrochemical industry
TSG R0005 Supervision regulation on safety technology for mobile pressure vessels
TSG Z6002 Examination rules for welding operators of special equipment
TSG 21 Supervision regulation on safety technology for stationary pressure vessels
TSG 23 Safety technical specification for gas cylinders
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB 50028 and the following apply.
3.1
liquefied natural gas (LNG)
A colorless cryogenic liquid fluid composed primarily of methane, possibly containing small amounts of ethane, propane, butane, nitrogen, or other components typically found in natural gas.
[SOURCE: GB/T 8423.3-2018, 2.1.14]
3.2
small LNG vaporizing station
A specialized station that uses small LNG storage tanks, tank containers, or gas cylinders as storage equipment, with a total geometric volume of LNG storage tanks not exceeding 180 m³ or a total geometric volume of gas cylinder groups not exceeding 4 m³. It utilizes vaporization equipment to convert LNG into gaseous natural gas, which is then regulated, metered, odorized, and supplied to users through pipelines.
Note 1: Referred to as "vaporizing station" in this document.
Note 2: Small LNG vaporizing stations are classified into small LNG skid-mounted vaporizing stations and small LNG cylinder group vaporizing stations.
