GB 50074: Evolution and historical versions
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| GB 50074-2014 | English | RFQ |
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Code for design of oil depot
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GB 50074-2014
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| GB 50074-2002 | English | RFQ |
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Code for design of oil depot
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GB 50074-2002
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PDF similar to GB 50074-2014
Basic data | Standard ID | GB 50074-2014 (GB50074-2014) | | Description (Translated English) | Code for design of oil depot | | Sector / Industry | National Standard | | Classification of Chinese Standard | P71 | | Classification of International Standard | 75.010 | | Word Count Estimation | 192,169 | | Date of Implementation | 5/1/2015 | | Older Standard (superseded by this standard) | GB 50074-2002 | | Quoted Standard | GB 50016; GB 50057; GB 50058; GB 50116; GB 50140; GB 50151; GB 50156; GB 50183; GB 50192; GB 50253; GB 50423; GB 50459; GB 50493; GB 50737; GB 50747; GB 50759; CBJ 22; GBZ 230; SH/T 3004; SH/T 3007; SH/T 3022; SH/T 3411; GB 50160 | | Regulation (derived from) | Housing and Urban-Rural Development Bulletin No. 492 2014 | | Issuing agency(ies) | Ministry of Housing and Urban-Rural Development of the People's Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China | | Summary | This standard applies to new construction, expansion and renovation of oil depot design. | GB 50074-2014: Code for design of oil depot---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
1 General
1.0.1 This specification is formulated to implement relevant national guidelines and policies in the design of oil depots, unify technical requirements, and achieve safety and applicability, advanced technology, and economical rationality.
1.0.2 This code is applicable to the design of new construction, expansion and reconstruction of oil depots. This specification does not apply to the following flammable and combustible liquid storage and transportation facilities.
1 Storage and transportation facilities for flammable and combustible liquids in the plant area of petrochemical enterprises;
2 Oil product stations (storages) in oil and gas fields;
3 The oil transportation station attached to the oil pipeline;
4 Underground water-sealed stone cave oil depots, underground salt cavern oil depots, natural cave oil depots, and artificially excavated oil storage caverns;
5 Independent liquefied hydrocarbon storage (including normal temperature liquefied petroleum gas storage and low temperature liquefied hydrocarbon storage);
6 Liquefied natural gas storage;
7 The total capacity of storage tanks is greater than or equal to 1,200,000m3, and only crude oil is stored in oil reserves.
1.0.3 In addition to implementing this code, the design of oil depots should also comply with the relevant current national standards.
2 terms
2.0.1 Oil depot
An independent facility for sending, receiving, and storing crude oil, refined oil, and other flammable and combustible liquid chemicals.
2.0.2 super oil depot
Oil depots that store both crude oil and non-crude oil flammable and combustible liquids, and the calculated total capacity of the storage tanks is greater than or equal to 1,200,000m3.
2.0.3 Oil depot attached to an enterprise
Petroleum depots set up within the boundaries of non-petrochemical enterprises and serving the production or operation of the enterprises.
2.0.4 storage tank
Equipment for storing flammable and combustible liquids.
2.0.5 fixed roof tank fixed roof tank
A storage tank in which the periphery of the tank roof is fixedly connected to the top of the tank wall.
2.0.6 external floating roof tank
A storage tank whose top cover floats on the liquid surface.
2.0.7 internal floating roof tank
A tank with floating trays inside a fixed roof tank.
2.0.8 Vertical tank
A collective term for fixed roof storage tanks, external floating roof storage tanks and internal floating roof storage tanks.
2.0.9 above ground tank above ground tank
Above the ground, the general term for vertical storage tanks and horizontal storage tanks built in the open air.
2.0.10 Buried horizontal storage tank underground storage oil tank
The horizontal storage tank is buried underground by directly covering soil or filling sand (fine soil) in the tank, and the highest liquid level in the tank is lower than the lowest elevation of 0.2m on the ground within 4m outside the tank.
2.0.11 buried vertical oil tank
It is a vertical oil storage tank independently installed in a tank chamber or a protective body buried in soil.
2.0.12 buried horizontal oil tank
Horizontal oil tanks that are directly covered with soil or buried, including buried horizontal oil tanks.
2.0.13 buried oil tank
A collective term for soil-covered vertical oil tanks and soil-covered horizontal oil tanks.
2.0.14 pan internal floating roof tank
The floating roof has no compartments, buoys or other floats, and only relies on the basin-shaped floating roof to directly contact the liquid with an internal floating roof storage tank.
2.0.15 Open-top bulk-headed internal floating roof
The ring-shaped open compartment is arranged around the floating roof, and the middle is only the inner floating roof of a single-layer plate.
2.0.16 Pressure storage tank pressurized tank
Storage tanks whose design pressure is greater than or equal to 0.1MPa (gauge pressure on tank top).
2.0.17 Low-pressure storage tank low-pressure tank
Storage tanks whose design pressure is greater than 6.0kPa and less than 0.1MPa (gauge pressure on tank top).
2.0.18 single-deck floating roof
An annular sealed cabin is arranged around the floating roof, and the middle is only a single-layer floating roof.
2.0.19 double-deck floating roof
The entire floating roof is a floating roof composed of compartments.
2.0.20 tank group a group of tanks
A group of above ground storage tanks arranged within the same fire dike.
2.0.21 tank farm
An area consisting of one or more tank banks or earth-covered storage tanks.
2.0.22 fire dike dike
It is a structure used to prevent flammable and combustible liquid from overflowing and fire spreading when the storage tank leaks.
2.0.23 dike dividing dike
It is a structure that divides a storage tank group into multiple areas in order to reduce the influence range of flammable and combustible liquid flooding when a small amount of leakage accident occurs in the storage tank in the fire dike.
2.0.24 nominal volume of tank
The calculated and rounded nominal capacity of the storage tank.
2.0.25 Calculate nominal volume of tank
According to the different fire hazards of stored liquids, the total capacity of the storage tank is converted by multiplying the storage tank capacity by a certain coefficient.
2.0.26 operating room for tank
The location where the inlet and outlet valves of soil-covered oil tanks are frequently operated.
2.0.27 flammable liquid flammable liquid
A liquid with a flash point below 45°C.
2.0.28 combustible liquid combustible liquid
A liquid with a flash point higher than or equal to 45°C.
2.0.29 liquefied hydrocarbon
Hydrocarbon liquids and other similar liquids with a vapor pressure greater than 0.1 MPa at 15°C, including liquefied petroleum gas.
2.0.30 boil-over liquid
Aqueous viscous oil products (such as crude oil, heavy oil, residual oil, etc.) that boil over when burned due to their heat wave characteristics.
2.0.31 Process pipeline process pipeline
Pipelines for transporting flammable liquids, combustible liquids, combustible gases and liquefied hydrocarbons.
2.0.32 operating temperature operating temperature
The temperature at which flammable and combustible liquids are normally stored or transported.
2.0.33 Railway for oil loading and unloa-ding
Railroad sections used for flammable and combustible liquid handling operations.
2.0.34 Vapor recovery device
Through adsorption, absorption, condensation, membrane separation, incineration and other methods, the collected combustible gas is recycled to the standard concentration and discharged.
2.0.35 open flame site
Fixed places with exposed flames or red-hot surfaces indoors and outdoors (except stoves, induction cookers, etc. in civil buildings).
2.0.36 sparking site
There are chimneys with flying fire or fixed places such as outdoor grinding wheels, electric welding, gas welding (cutting), etc.
2.0.37 external pipeline
Laid outside the enclosure wall of the oil depot, pipelines between storage tank farms in different areas of the same oil depot, pipelines between storage tank farms and flammable and combustible liquid loading and unloading areas, and pipelines between two adjacent oil depots.
2.0.38 toxic liquid
According to the current national standard "Classification of Hazard Degree of Occupational Exposure to Toxic Substances" GBZ 230, the degree of toxicity is divided into extremely harmful (level I), highly harmful (level II), moderately harmful (level III) and mildly harmful (level IV).) liquid.
3 Basic Regulations
3.0.1 The classification of oil depots shall comply with the provisions in Table 3.0.1.
Table 3.0.1 Classification of oil depots
Note. 1 TV in the table does not include the capacity of zero tank, relay tank and vent tank.
2 The capacity of Class A liquid storage tanks, the capacity of Class I and Class II toxic liquid storage tanks should be multiplied by a factor of 2 and included in the total storage tank capacity, and the capacity of Class C A liquid storage tanks can be multiplied by a coefficient of 0.5 and included in the total storage tank calculation. Capacity, the capacity of Class C and B liquid storage tanks can be multiplied by a coefficient of 0.25 and included in the calculation of the total capacity of the storage tank.
3.0.2 The design of super oil depots shall meet the following requirements.
1 The calculated total capacity of storage tanks for non-crude oil flammable and combustible liquids shall be less than 1,200,000m3, and the design of their facilities shall comply with the relevant provisions of the first-class oil depots in this code. The safe distance between non-crude oil flammable and combustible liquid facilities and residential areas outside the warehouse, public buildings, industrial and mining enterprises, and traffic lines shall comply with the provisions in Note 5 of Article 4.0.10 of this Code.
2 The design of crude oil facilities shall comply with the relevant provisions of the current national standard "Code for Design of Petroleum Storage Depots" GB 50737.
3 The design of shared facilities or other shared parts between crude oil and non-crude oil flammable and combustible liquids shall comply with the higher requirements of this code and the current national standard "Code for Design of Petroleum Storage Depot" GB 50737.
4 When the calculated total capacity of storage tanks of special-grade oil depots is greater than or equal to 2400000m3, the fire protection system shall be designed according to the situation that a crude oil storage tank with the highest fire protection configuration requirements and a non-crude oil storage tank with the highest fire protection configuration requirements are simultaneously on fire.
3.0.3 The fire hazard classification of liquefied hydrocarbons, flammable and combustible liquids stored in petroleum depots shall comply with the provisions in Table 3.0.3.
Table 3.0.3 Fire Hazard Classification for Storage of Liquefied Hydrocarbons, Flammable and Combustible Liquids in Petroleum Depots
3.0.4 The fire hazard classification of flammable and combustible liquids stored in petroleum depots shall meet the following requirements in addition to the requirements in Table 3.0.3 of this code.
1 Class B liquids whose operating temperature exceeds their flash point shall be regarded as Class A and B liquids;
2 Class C A liquid whose operating temperature exceeds its flash point shall be regarded as Class B A liquid;
3 Class C and B liquids whose operating temperature exceeds their boiling point shall be regarded as Class B and A liquids;
4 Class C and B liquids whose operating temperature exceeds their flash point shall be regarded as Class B and B liquids;
5 Light diesel oil with a flash point lower than 60°C but not lower than 55°C, when the operating temperature of its storage and transportation facilities is lower than or equal to 40°C, it can be regarded as Class C A liquid.
3.0.5 The minimum fire resistance rating of productive buildings (structures) in oil depots shall meet the requirements in Table 3.0.5.The combustion performance and fire resistance limit of building (structure) components shall comply with the relevant provisions of the current national standard "Code for Fire Protection Design of Buildings" GB 50016; the components of buildings (structures) with Class III fire resistance shall not use combustible materials; The fire resistance rating of load-bearing components and top surfaces may not be limited, but combustible materials shall not be used.
Table 3.0.5 Minimum Fire Resistance Classes of Production Buildings (Structures) in Petroleum Depots
3.0.6 The fire protection design of Class A and A flammable liquid facilities such as liquefied hydrocarbons in petroleum depots shall be implemented in accordance with the relevant provisions of the current national standard "Code for Fire Protection Design of Petrochemical Enterprises" GB 50160.
3.0.7 Unless otherwise stipulated in the provisions of this code, the starting and ending points of the calculated spacing of buildings (structures), equipment and facilities shall comply with the provisions of Appendix A of this code.
3.0.8 The division of explosion hazard areas for flammable liquid equipment and facilities in oil depots shall comply with the provisions of Appendix B of this code.
4 Storage location selection
4.0.1 The site selection of an oil depot should be based on the construction scale, geographical environment, the function and operation nature of each area of the oil depot, the degree of importance, and the possible interaction with adjacent buildings (structures) and facilities, etc. The specific location of the site should meet the requirements of town planning, environmental protection, fire safety and occupational health, and the transportation should be convenient.
4.0.2 The site of the oil depot affiliated to the enterprise shall be considered in conjunction with the main buildings (structures) and equipment and facilities of the enterprise, and shall meet the requirements of urban or industrial area planning, environmental protection and fire safety.
4.0.3 The site of the oil depot should have good geological conditions, and it should not be selected in areas with landslides, faults, landslides, swamps, quicksand and mud-rock flows and areas that may collapse after underground mineral deposits are mined.
4.0.4 The sites of grade 1, 2 and 3 oil depots shall not be selected in areas with seismic fortification intensity of 9 degrees or above.
4.0.5 Class I oil depots should not be built in Class IV site areas with seismic fortification intensity of 8 degrees.
4.0.6 Soil-covered vertical oil tank farms should be located in mountainous areas or areas that can coordinate with the surrounding topographical environment after completion.
4.0.7 Oil depots should be selected in areas not threatened by floods, tides or waterlogging; when unavoidable, reliable flood control and drainage measures should be taken.
7 The incineration-type combustible gas recovery device should be implemented as a building (structure) and location with open flames and sparks, and other forms of combustible gas recovery and treatment devices should be implemented as Class A and B liquid pump rooms.
8 The fire distance between storage tanks, equipment and facilities of Class I and II toxic liquids and other buildings (structures) and facilities in the oil depot shall be increased by 30% on the basis of the provisions in this table according to the corresponding fire hazard category.
9 "—" indicates that there is no fire distance requirement.
5.1.4 Storage tanks should be arranged centrally. When the ground of the storage tank area is higher than the adjacent residential areas, industrial enterprises or railway lines, the safety protection measures to prevent the outflow of flammable and combustible liquids in the storage tank should be strengthened in the event of an accident.
5.1.5 The storage tanks of the oil depot shall be set up in the open air on the ground. In mountainous and hilly areas or where there are special requirements, non-open-air installations such as covering soil can be used, but horizontal storage tanks for storing Class A, B and B liquids cannot be installed in tank chambers. Storage tank areas should be set up for above-ground storage tanks and soil-covered storage tanks respectively.
5.1.6 Storage tanks for storing Class I and Class II toxic liquids shall be provided with a separate tank area. For an oil depot with a calculated total capacity of storage tanks greater than 600,000m3, two or more storage tank farms should be set up, and the total calculated capacity of storage tanks in each tank farm should not exceed 600,000m3.In super-grade oil depots, crude oil storage tanks and non-crude oil storage tanks should be concentrated in different storage tank areas.
5.1.7 The fire distance between storage tanks in adjacent storage tank farms shall meet the following requirements.
1 The fire distance between the ground storage tank area and the adjacent storage tank of the soil-covered vertical oil tank shall not be less than 60m;
2 The fire distance between storage tanks storing Class I and II toxic liquids and adjacent storage tanks in other storage tank areas shall not be less than 1.5 times the diameter of the larger tank in the adjacent storage tanks, and shall not be less than 50m;
3 The fire distance between adjacent storage tanks in other flammable and combustible liquid storage tank areas shall not be less than 1.0 times the diameter of the larger tank in the adjacent storage tanks, and shall not be less than 30m.
5.1.8 In the same ground storage tank area, the fire protection distance between adjacent tank group storage tanks shall meet the following requirements.
1 The fire distance between the fixed-roof storage tanks storing Class A and B and B liquids and the internal floating-roof storage tanks with fusible roofs made of fusible materials and the adjacent storage tanks of other tank groups shall not be less than that of the adjacent storage tanks. 1.0 times the diameter of the large tank;
2 The fire distance between the outer floating roof storage tank, the inner floating roof storage tank with steel floating roof, the fixed roof storage tank storing Class C liquid and other tank group storage tanks shall not be less than that of the adjacent storage tanks...
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