The common group hanging electric hoist has two forms of upside down and upside down, and the upside down is divided into short upside down and long upside down. The same group hoist electric hoist is divided into the formal installation method and the inverted installation method. Under normal conditions, the formal installation requires the scaffolding required for facility operations. Generally, due to the poor working conditions at high altitude, the construction activity planning is often restricted, resulting in far from being convenient to operate on the ground, which is why except for some special structures assembled The storage tank is rarely used in the general vertical storage tank. The main advantage of the flip method is to reduce the part of working at height, save the scaffolding materials, the safety is greatly improved, and the working efficiency and speed are also improved, so most of the flip method is widely used. The formal installation method is also suitable for any type of storage tank construction, but due to its large amount of scaffolding, it requires a lot of materials to be consumed and requires a lot of aerial work, which is suitable for the construction of large tower equipment. The working range of the flip-chip method is relatively wide, and in theory, it can be suitable for storage tanks of any specifications. Secondly, the operation control is particularly simple, reliable and low-risk. The only thing is that equipment prices are relatively expensive now, and the one-time economic investment for equipment purchase is relatively large.