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Combustible gas storage tanks refer to hydrogen and methane.
Ethane, ethylene, ammonia.
Storage tanks for natural gas, oilfield associated gas, water gas, semi-water gas, generator gas, blast furnace gas, coke oven gas, Wood furnace gas, mine gas and other combustible gases.
There are two types of combustible gas storage tanks: low pressure and high pressure. The geometric volume of low-pressure combustible gas storage tanks is variable, and there are two types: wet and dry. The design pressure of wet combustible gas storage tanks is usually less than 4kPa, and the design pressure of dry combustible gas storage tanks is usually less than 8kPa.
The geometric volume of the high-pressure combustible gas storage tank is fixed, and there are two types of shapes: horizontal cylindrical and spherical. The volume of horizontal gas storage tanks is small, usually not larger than 120m3
The spherical gas storage tank has a large tank volume, and the maximum volume can reach 10000m3
The design pressure of this type of tank is typically:
The fire distance between the combustible gas storage tank and the building, storage tank, storage yard, etc.
The following requirements shall be met:
1) The fire spacing between wet combustible gas storage tanks and buildings, storage tanks, storage yards, etc. should not be less than the provisions of Table 3-15.
3 Standard] Fire distance between wet combustible gas storage tank and buildings, storage tanks, storage yards, etc. (m) Table 3-15
Note: The total volume of the fixed volume combustible gas storage tank is based on the geometric volume of the storage tank (m3
and design storage pressure (absolute.
pa).
2) The fire spacing between the combustible gas storage tank of fixed volume and buildings, storage tanks, storage yards, etc. shall not be less than the provisions of Table 3-15.
3) The fire spacing between the dry combustible gas storage tank and buildings, storage tanks, storage yards, etc.: when the density of combustible gas is greater than that of air, it should be increased by 25% according to the provisions of Table 3-15; When the density of combustible gas is smaller than that of air, it can be determined according to the provisions of Table 3-15.
4) Water-sealed wells for wet or dry combustible gas storage tanks.
The fire distance between the auxiliary facilities such as the oil pump room and the elevator hall and the storage tank can be arranged according to the process requirements.
5) The volume is not more than 20m3
There is no limit to the fire distance between the combustible gas storage tank and the plant it uses.
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1. The fire spacing between wet combustible gas storage tanks and buildings, storage tanks and storage yards should not be less than the provisions of the table;
2. The fire spacing between combustible gas storage tanks should not be less than 1 2 of the diameter of adjacent larger tanks
3. The fire spacing between the combustible gas storage tank and the combustible gas storage tank should not be less than the diameter of the adjacent larger tank;
4. The fire spacing between the combustible gas storage tank and its oxygen plant can be determined according to the process layout requirements;
5. There is no limit to the fire distance between the combustible gas storage tank with a volume less than or equal to 50 m 3 and the plant it uses;
6. The fire spacing between the combustible gas storage tank of fixed volume and the building, storage tank and storage yard shall not be less than the regulations.
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Answer] Paragraph 5 of the Code for Fire Protection Design of :d Buildings (GB 50016-2014) (2018 Edition) stipulates that there is no limit to the fire spacing between the combustible gas storage stove with a volume of no more than 20m3 and the plant used for hidden slag.
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Hello dear. The fire distance between the gas tank and the living building with a total volume beam of less than 1000 m2 is 10 meters. The total storage capacity of the liquid storage tank should not exceed 15m3, and the fire spacing can be unlimited when the outer wall of the building within the scope of the high-rise building or podium is buried near the high-rise building or podium and facing the oil tank.
The volume of the intermediate storage tank in the plant should not be greater than and should be located in a separate room with a fire resistance grade not lower than Class II, and the door of the room should be a Class A fire door. When high-rise buildings use bottled liquefied petroleum gas as fuel, a centralized bottled liquefied petroleum gas room should be set up, and the following provisions should be met: 1. The total reserves of liquefied petroleum gas do not exceed the bottled liquefied petroleum gas base space, which can be built adjacent to the podium.
2. The bottled liquefied petroleum gas room with total reserves exceeding but not exceeding shall be built independently, and the fire distance from the high-rise building and the podium shall not be less than that there shall be an emergency on the main gas inlet pipeline and the main gas outlet pipeline.
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Hello dear, thank you for waiting, let me explain to you that the storage tank with a volume of more than 1000m3 or the tank farm with a total capacity of more than 5000m3 should not be less than 120m from the open flame or spark site and civil buildings, and the fire distance from other buildings should be increased by 25% according to the specified normal value. The fire spacing between the storage tank of the gasification station and the gas mixing station located in the residential area and other important public buildings and other civil buildings and roads can be implemented in accordance with the relevant provisions of the current "Urban Gas Design Code", and the distance between the fire prevention and combustion ridge of the open flame or spark emitting the spot shall not be less than 30m. I hope you can be satisfied, give a thumbs up and encouragement, thank you!
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The fire spacing between Class A, B and C liquid storage tanks (areas) and Class B and C liquid barrel storage yards and other buildings shall not be less than the provisions of Table 3-8.
3 Marks] Class A, B, C liquid storage tanks (areas) and B and C liquid barrel yards and other buildings fire spacing (m) Table 3-8
Note: 1When Class A and B liquid storage tanks and Class C liquid storage tanks are arranged in the same tank area, the total capacity of the tank farm can be converted into 1m3 Class A and B liquids equivalent to 5m3 Class C liquids.
2.The distance between the outer footing line of the tank fire embankment and the adjacent building should not be less than 10m.
3.The fire spacing between the fixed roof storage tank area or semi-open storage yard of Class A, B and C liquids, the fire spacing between Class B and C liquid barrel yards and Class A workshops (warehouses) and civil buildings shall be increased by 25% in accordance with the provisions of this table, and the fire spacing between the fixed roof storage tank area or semi-open storage yard of Class A and B liquids, and the fire spacing between Class B and C liquid barrel yards and Class A factories (warehouses), podiums, single-storey and multi-storey civil buildings shall not be less than 25m. The fire distance from the site of open flame or spark shall be increased by 25% in accordance with the provisions of this table for buildings with a fire resistance class IV.
4.The fire distance between the floating roof storage tank area or the liquid storage tank area with a flash point greater than 120 and other buildings can be reduced by 25% according to the provisions of this table.
5.When several storage tank areas are arranged in the same storage area, the fire spacing between the storage tank areas should not be less than the larger value of the fire spacing between the storage tank area of the corresponding capacity in this table and the fourth-class fire-resistant building.
6.When the capacity of a single tank is not more than 50m3 and the total capacity is not more than 200m3, the fire distance between the horizontal tank and the building can be reduced by 50% according to the provisions of this table.
7.Outdoor substation and distribution station refers to the outdoor transformer, distribution station with a power system voltage of 35kV and 500kV and the capacity of each transformer is not less than 10mV·a, and the total transformer oil volume of industrial enterprises is greater than 5t.
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The fire spacing between Class A, B and C liquid storage tanks shall not be less than the provisions of Table 3-9.
3. Standard] Fire spacing between Class A, B and C liquid storage tanks (m) Table 3-9<>
Note: It is the diameter (m) of the adjacent larger vertical tank, and the diameter of the rectangular tank is half of the sum of the long and short sides.
2.The fire spacing between different liquids and different forms of storage tanks should not be less than the maximum value specified in this table.
3.The fire spacing between two rows of horizontal storage tanks should not be less than 3m.
4.When the capacity of a single tank is not more than 1000m3
And when the fixed cooling system is adopted, the fire spacing between the above-ground fixed top storage tanks of Class A and Class B liquids should not be less.
5.When the above-ground storage tank is equipped with an underwater jet foam fire extinguishing system, a fixed cooling water system and a foam fire extinguishing facility for extinguishing liquid fires in the fire embankment at the same time, the fire spacing between the storage tanks can be appropriately reduced, but should not be less than.
6.For liquids with flash point greater than 120, when the capacity of a single tank is greater than 1000m3, the fire spacing between storage tanks should not be less than 5m; When the capacity of a single tank is not more than 1000m3, the fire spacing between the storage tanks should not be less than 2m.
The common problems of combustible gas alarms are mainly the problem of false positives and false alarms.