This code specifies the design, manufacture, construction, operation, management and maintenance of the production, recovery, distribution, storage and application facilities for gas from producer, water gas furnace, semiwater gas furnace, blast furnace, coke oven, continuous vertical carbide furnace and converter in the plant area of industrial enterprises as well as for natural gas with pressure less than or equal to 12×105Pa (1.22×105mm H2O) (excluding exploitation and out-plant distribution).
This code is not applicable the urban main pipe, branch pipe of courtyard pipe network of city gas as well as the pressure regulator and liquefied petroleum gas, etc.
Provided that the relevant requirements of this code can not be implemented due to adopting new technologies or introducing technologies and engineering, the corresponding safety requirements (attached with scientific reference) shall be proposed and reported to the labour departments of provinces, autonomous regions and municipalities for approval, and be reported to the Ministry of Labour and Personnel for record, and then application and operation will be allowed.
Contents
Foreword III
1 Scope
2 Normative References
3 Terms and Definitions
4 Basic Requirements
5 Gas Production, Recovery and Purification
5.1 Production and Purification of Producer Gas
5.2 Production and Purification of Water Gas (including Semiwater Gas)
5.3 Recovery and Purification of Blast Furnace Gas
5.4 Recovery and Purification of Coke Oven Gas
5.5 Production and Purification of Continuous Vertical Carbide Furnace Gas
5.6 Recovery and Purification of Converter Gas
6 Gas Piping (Including Natural Gas Piping)
6.1 Structure and Construction of Gas Piping
6.2 Laying of Gas Piping
6.3 Corrosion Protection of Gas Piping
6.4 Tests of Gas Piping
7 Auxiliary Equipments of Gas Fitting and Piping
7.1 Combustion Appliance
7.2 Curtain Appliance
7.3 Bleeding Device
7.4 Condensate Drainer
7.5 Steam Pipe and Nitrogen Pipe
7.6 Compensator
7.7 Explosion Relief Valve
7.8 Manhole, Handhole and Access Tube
7.9 Piping Mark and Warning Board
8 Pressurizing Station and Mixing Station of Gas
8.1 Safety Requirements for Pressurizing Station and Mixing Station of Gas and Buildings of Air Extractor Room
8.2 General Requirements for Pressurizing Station and Mixing Station of Gases
8.3 Natural Gas Regulator Station
9 Gas Holder
9.1 Wet Gas Holder
9.2 Dry Gas Holder
10 Operation and Overhaul of Gases Equipment
10.1 Operation of Gases Equipment
10.2 Overhaul of Gases Equipment
11 Treatment of Gas Accident
11.1 Treatment Rules of Gas Accident
11.2 Treatment of the Person Poisoned by Gas
11.3 Treatment of Fire Accident Caused by Gas
11.4 Treatment of Explosion Accident Caused by Gas
12 Gas Control Center and Gas Protection Station
12.1 Gas Control Center
12.2 Gas Protection Station
