Fire protection design requirements for liquid oxygen storage tanks: supplied to Zhejiang 20 cubic meter liquid oxygen storage tank manufacturer

Description :

　　1. According to the different volumes of the storage tanks, they are divided into five levels: 1000, 10000, 50000, 100000, and 300000; Each interval contains on the left but not on the right;

　　2. The fire separation distance between Class A warehouses, Class A, Class B liquid storage tanks, open flames or sparks, combustible material yards, and power distribution stations is only 20 meters for each interval, and then the distance increases by 5 meters for each level of interval;

　　3. The fire separation distance between high-rise civil buildings is only 25 meters for each interval, and the distance increases by 5 meters for each level of interval;

　　4. The fire separation distance between the podium and single story civil buildings should be kept at 18 meters, the second at 20 meters, and an additional 5 meters for each level of increase in the distance between the following sections;

　　5. The fire separation distance from other buildings is divided into two levels: one is 12 meters, the second is 15 meters, and for each level of increase in the following sections, the distance increases by 5 meters; The distance between levels three is only 15 meters for each interval, and then the distance increases by 5 meters for each level of interval rise; The spacing between levels four only needs to remember that the interval is 20 meters, and then the spacing increases by 5 meters for each level of increase in the interval;

　　6. Issues to be noted when determining fire separation distance:

　　a、 The calculation of tank volume should be the product of the geometric volume and pressure of the tank;

　　b、 When the density of gas stored in a dry combustible gas storage tank is higher than that of air, it should be increased by 25%; When the density of stored gas is lower than that of air, there is no need to increase or decrease it;

　　c、 The fire separation distance between the oil pump room, water seal well, and elevator room of the storage tank and the tank can be set according to the process requirements;

　　d、 The fire separation distance between buildings using combustible gas storage tanks with a capacity of less than 20m3 is not limited.

　　1

　　The fire separation distance between wet and wet, dry and dry, and between wet and dry should not be less than 1/2D of the diameter of the adjacent larger tank;

　　2. The distance between fixed volume combustible gas storage tanks should not be less than 2/3D of the larger tank diameter;

　　3. The distance between wet or dry storage tanks with fixed volume should not be less than 1/2D of the larger tank diameter;

　　When the total volume of four fixed storage tanks exceeds 200000m3, they should be arranged in groups. The distance between horizontal storage tank groups should not be less than half of the length of the larger tank; The diameter between spherical storage tank groups should not be less than the larger tank diameter, and should not be less than 20m.

　　1. According to the different volumes of the storage tanks, they are divided into three levels based on two numbers: 1000 and 50000; Each interval is less than inclusion and greater than exclusion;

　　2. The fire separation distance between Class A warehouses, Class A, B, C liquid storage tanks, combustible material yards, and power distribution stations is only 20 meters for each interval, and then the distance increases by 5 meters for each level of interval;

　　3. The fire separation distance from open flames or sparks should be kept at 25 meters for each interval, and the distance should be increased by 5 meters for each level of increase in the interval;

　　4. The fire separation distance between high-rise civil buildings is only 25 meters for each interval, and the distance increases by 5 meters for each level of interval;

　　5. The fire separation distance between the podium and single story civil buildings should be kept at 18 meters, the second at 20 meters, and an additional 5 meters for each level of increase in the distance between the following sections;

　　6. The fire separation distance from other buildings is the same as that between the EPDM plant and civil buildings, with different fire resistance levels of 10, 12, 14, 16, and 18 meters respectively;

　　7. Issues to be noted when determining fire separation distance

　　a、 The calculation of tank volume should be the product of the geometric volume and pressure of the tank;

　　b、 The distance between storage tanks should not be less than 1/2D of the larger tank diameter;

　　c、 The distance between oxygen and combustible gas storage tanks shall not be less than the diameter D of the larger tank;

　　d、 There is no limit to the distance between the oxygen storage tank and the oxygen production plant; There is no limit to the spacing between factories using oxygen storage tanks with a capacity of no more than 50m3.

　　e、 Note: 1m3 of liquid oxygen is equivalent to 800m3 of gaseous oxygen under standard conditions.

　　4、 Fire separation distance for liquid oxygen storage tanks

　　1. The distance between the liquid oxygen storage tank and its pump room should not be less than 3m;

　　2. The fire separation distance between storage tanks with a volume of less than 3 cubic meters and other buildings used: not less than 10 meters for first - and second level buildings; The distance between low-temperature storage tanks shall not be less than 5 meters; The inner side of the first and second level buildings facing the building is equipped with firewalls with unlimited spacing;

　　3. Requirements for medical liquid oxygen tanks: single tank not exceeding 5 cubic meters, total volume not exceeding 20 cubic meters; The distance between storage tanks shall not be less than 0.75 times the diameter of the tanks.

　　4. There should be no combustibles or asphalt pavement within a 5-meter radius around the liquid oxygen storage tank.

　　This spacing is too complex and irregular to follow. I gave up and attached a fireproof spacing table for those who have the ability to remember.

AfterSalesService :

• Fire Protection Design Requirements for Liquid Oxygen Storage Tanks