Safety matters of SF undergrounddouble-layer oil storage tank

1. For newly built or large-area repaired sf double-layer oil tanks, the oil tanks should be calibrated before use and a volume table of pressure vessels should be compiled;

2. Check the accessories of the oil tank again after entering the oil, check whether the connection is tight, and whether the valve is opened and closed correctly;

3. The sf double-layer oil tank starts to enter the oil after viewing, and the oil inlet rate should be within the scale of the breathing valve;

4.Sf double-layer oil tanks should be strengthened to check when entering the oil, pay attention to the appearance of the tank welds or the bottom of the tank for leaks, and check on time. When the oil level is close to the height of the safety line, strict supervision is required to avoid overflow

5. According to the regular structure and process conditions of the oil tank, the maximum oil filling height (safe height) and minimum oil storage height of each oil tank should be clearly defined. When the pressure vessel is filled with oil, the oil level should be strictly controlled at the maximum oil filling height Within. When pumping oil, it shall not be lower than the minimum storage height. 6. When turning the oil measuring hole of the oil tank, the operator should stand at the upper air outlet to ensure that fresh air is sucked. When measuring the oil, the ruler should be along the aluminum (or copper) guide groove in the oil measuring hole, To avoid sparks caused by conflict between the steel tape and the hole wall, after checking the gauge, the cover plate of the oil measuring hole of the pressure vessel should be tightly covered, and pay attention to whether the gasket in the cover is intact;

7. When heating the double-layer oil tank, the condensate valve should be opened first, and then the intake valve should be opened gradually to avoid damage to the welding port and accessories of the oil tank heating pipe by hydraulic impact;

8. As long as the liquid level is higher than the heating coil by more than 50 cm, the oil tank should be heated;

9. The heating temperature of the oil should be 15 ° C lower than its flash point, because the operating requirements must not exceed 90 ° C to avoid the occurrence of abrupt accidents due to the water content in the oil;
When dehydration work of 10.sf double-layer oil tank, it is better to heat the oil temperature to 80 ℃. When opening the valve, the principle of small opening-large opening-small opening, the operator must strictly guard the post to avoid overflow.