What are the accessories required for the double-layer oil tank?

Compared with single-layer tanks, double-layer oil tanks have higher safety and stability performance, and are less prone to leakage and other conditions. The use time is longer. Which components of double-layer oil tanks are combined? The following is a detailed introduction to all the required accessories for the lower pressure vessel.
 
1. Breathing valve for mechanical equipment: It is a key accessory for the manufacture of double-layer oil tanks. It is installed on the top plate of the oil tank and is composed of two parts: pressure valve and vacuum valve. Its function is to ensure the tightness of the oil tank under most conditions, and to some extent, it can reduce the volatile consumption of refined oil. And when necessary, it can naturally ventilate itself, adjust the internal and external pressure of the pressure vessel well, and play a protective role on the oil tank.

2. Lighting hole: The lighting hole of the oil tank is located at the top of the tank, usually a circular hole with a diameter of 500 mm. The cover ring with holes is usually tightly closed with bolts. It is used for lighting, ventilation and exhaust when cleaning and maintaining the double-layer oil tank.

3. Flame arrester: It is a fire safety device on the double-layer oil tank. It is located under the breathing valve of the mechanical equipment at the top of the tank. It has a similar shape to the box. board. If a flame enters the breathing valve, the wire mesh or corrugated plate inside the flame arrestor quickly absorbs the heat of the combustion gas, so that the flame is extinguished, preventing the flame from entering the oil tank. 4. Accurate measuring hole: it is a special accessory for accurately measuring the oil level in the pressure vessel and transferring oil samples. One is set at the top of each oil tank, and most of them are located around the platform of the tank ladder. The double-layer oil tank has an accurate measuring hole diameter of 150ram, and is provided with a hole cover and an elastic bolt that can be sealed. In order to avoid the flame caused by the collision of the hole cover and the ironware when it is closed, an oil-resistant rubber pad or soft metal is embedded in the sealing groove under the hole cover.

5. Manhole: The manhole of the non-metallic oil tank is located on the tank item. The manhole of the metal oil tank is located on the lower ring plate of the tank wall, and most of them are circular holes with a diameter of 600 mm. They are used for double-layer oil tank cleaning or maintenance workers to access the oil tank. Daylighting and natural ventilation.
 
The above is a detailed introduction to the accessories needed for the double-layer oil tank. The upper parts of the double-layer oil tank are indispensable during the application process. The oil tank is equipped with a leak detection device, which can monitor the gap space for 24 hours. If leakage occurs in the inner or outer tank of the pressure vessel, the sensor of the leakage detection device can alarm when the liquid level at the bottom of the gap space is monitored to ensure the safe use of the oil tank.