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According to the requirements of Document JIANBIAO [2008] No.105 issued by the Ministry of Housing and Urban-Rural Development of the People's Republic of China - Notice on printing and distributing the development and revision plan on engineering construction standards and codes in 2008 (the second batch), the drafting group complied this standard through extensive investigation and study, careful summarization of practical experience and reference to relevant international and foreign advanced standards and on the basis of widely soliciting for opinions.
The main technical contents of this standard include: general provisions, terms, basic requirements, regional planning and general layout, building fire protection, process plant and system units, storage and transportation facilities, layout of piping, fire water supply, drainage, fire fighting equipment and fire station, electric system, etc.
The provisions printed in bold type in this standard are compulsory and must be enforced strictly.
Standard for fire protection design of coal chemical engineering
1 General provisions
1.0.1 This standard is formulated with a view to standardizing the fire protection design of coal chemical engineering, reducing fire hazards and protecting personal and property safety.
1.0.2 This standard is applicable to the fire protection design of constructed, extended and renovated projects in which coal is used as raw material to produce fuel and chemical products through coal gasification or direct coal liquefaction.
1.0.3 The fire protection design of coal chemical engineering shall follow relevant national principles and policies to realize safety and serviceability, advanced technology and economic feasibility.
1.0.4 The fire protection design of coal chemical engineering shall also meet those specified in current relevant standards of the nation in addition to this standard.
2 Terms
2.0.1
coal chemical factory
factory that uses coal as raw material to produce, store and transport fuel and chemical products through coal gasification or direct coal liquefaction
2.0.2
coal storage and transportation system
system for raw coal storage, transportation and processing, including facilities for coal loading, coal unloading, coal transportation, storage and crushing, etc.
2.0.3
pulverized coal preparation system
system for processing raw coal into pulverized coal, including facilities for feeding metering, grinding, drying, transportation, collection and storage, etc.
2.0.4
explosion-proof wall
wall used to resist explosion shock wave
3 Basic requirements
3.0.1 The fire hazard classification of liquefied hydrocarbons and combustible liquids shall meet those specified in Table 3.0.1.
Table 3.0.1 Fire hazard classification of liquefied hydrocarbons and combustible liquids
Class Characteristic
A AA Hydrocarbon liquids and other similar liquids with a vapor pressure of greater than 200kPa at 37.8℃
AB Liquids with a flash point of lower than 28℃ other than Class AA
B BA Liquids with a flash point of lower than or equal to 45℃ and higher than or equal to 28℃
BB Liquids with a flash point of lower than 60℃ and higher than 45℃
C CA Liquids with a flash point of lower than or equal to 120℃ and higher than or equal to 60℃
CB Liquids with a flash point of higher than 120℃
Notes:
1 Class B liquids with an operating temperature higher than the flash point shall be classified as Class AB.
2 Class CA liquids with an operating temperature higher than the flash point shall be classified as Class BA;
3 Class CB liquids with an operating temperature higher than the flash point shall be classified as Class BB; Class CB liquids with an operating temperature higher than the boiling point shall be classified as Class BA;
4 The coal oil mixtures in direct coal liquefaction device shall be classified as Class AB combustible liquids.
3.0.2 The fire hazard classification of gas and solid shall meet the relevant requirements of the current national standard GB 50016 Code for fire protection design of buildings.
3.0.3 The fire hazard category of equipment shall be determined according to the fire hazard category of the medium it handles, stores or transports.
3.0.4 The fire hazard category of a fire compartment in a building shall be determined according to the material or equipment with higher fire hazard category; when the material or equipment with higher fire hazard category accounts for less than 5% of the fire compartment area, and the fire accident is not large enough to spread to other parts or the fire may be prevented from spreading by taking fire protection measures, the fire hazard category may be determined according to the material or equipment with lower fire hazard category.
The fire hazard category of the same building shall be determined according to the fire compartment with higher fire hazard category.
4 Regional planning and general layout
4.1 Regional planning
4.1.1 The regional planning of a coal chemical factory shall meet the local overall planning of urban and rural areas (towns) and the safety requirements of fire and explosion protection, and shall be reasonably determined according to the characteristics and fire hazard of the coal chemical factory and its adjacent factories or facilities in combination with the conditions of topography, wind direction, traffic, water sources, etc.
4.1.2 Coal chemical factories shall be far away from densely populated areas such as urban residential, commercial and important transportation hubs as well as drinking water sources; their production area should be located on windward side of the wind direction with annual minimum frequency near towns or residential areas, and should avoid windy areas.
4.1.3 When a coal chemical factory is adjacent to a coal mine, the sites with open flame or sparks in the factory should be located at the downwind side of the wind direction with annual minimum frequency in the mine wellhead. The distance between the elevated flare and the wellhead shall be determined through calculation according to the radiant heat intensity allowed by people or equipment, and shall not be less than 200m, and the distance between other sites with open flame or spark in the factory and the wellhead shall not be less than 100m.
4.1.4 Measures shall be taken to prevent combustible liquids and polluted fire wastewater in the coal chemical factory from being discharged outside the factory.
Regional flood drainage ditches should not pass through the factory area; if it is really necessary to pass due to conditions, it shall meet the relevant requirements of the current national standard GB 50984 Code for design of petrochemical plant layout.
4.1.5 Regional overhead power lines, overhead power lines of other factories or facilities, highways, regional oil (gas) piping, oil (gas) piping of other factories or facilities and overhead bridge for coal transportation shall not cross the factory area.
4.1.6 The fire separation distance between coal chemical factory and adjacent residential area, factory or facility shall not be less than that specified in Table 4.1.6, and the starting and ending points of the fire separation distance shall meet the requirements of Annex B.
The fire separation distance between elevated flare and adjacent buildings and facilities shall be determined through calculation according to the radiant heat intensity allowed by people or equipment. The fire separation distance for elevated flare that may carry any combustible liquid shall not be less than that specified in Table 4.1.6.
Foreword ii
1 General provisions
2 Terms
3 Basic requirements
4 Regional planning and general layout
4.1 Regional planning
4.2 General layout
4.3 In-factory road for fire engine access
5 Building fire protection
5.1 Fire resistance class and fire resistance rating
5.2 Heights, storeys and area of the building
5.3 Explosion-proof of buildings
5.4 Safe evacuation
5.5 Building construction
6 Device and system units
6.1 General requirements
6.2 Arrangement of device and equipment
6.3 Preparation of pulverized coal
6.4 Others
7 Storage and transportation facilities
7.1 Storage and transportation of coal
7.2 Aboveground tanks for combustible liquids and gases
8 Layout of piping
9 Fire water supply and drainage, fire fighting equipment and fire station
9.1 General requirements
9.2 Design flow rate and demand for fire water supply
9.3 Firewater and fire pump
9.4 Outdoor cooling and fire fighting equipment
9.5 Indoor cooling and fire fighting equipment
9.6 Fire station
9.7 Fire water drainage
10 Electric system
10.1 Fire power supply and distribution
10.2 Electric devices
10.3 Automatic fire alarm system
10.4 Telephone fire alarm system
10.5 Fire emergency lighting system
10.6 Lightning protection and anti-static measures
Annex A Installation location of automatic fire alarm system and type selection of fire detectors
Annex B Starting and ending points of the fire separation distance
Explanation of wording in this standard
List of quoted standards
