Unequal inertia water conveying system arrangement method for hydraulic floating type ship elevator

Abstract

The invention relates to a water conveying system arrangement method in the technical field of water conservancy, in particular to an unequal inertia water conveying system arrangement method for a hydraulic floating type ship elevator. A water flow flows out of an upstream main pipeline and is divided into two branches which lead to passageways under vertical shafts on two sides; water outlet branch holes are formed on the tops of the passageways and communicated with the corresponding vertical shafts; the water flow flows out of the upstream main pipeline, passes through an upstream water filling valve and is divided into two branch flows entering the passageways and finally gathered into the downstream; and a water drainage valve is arranged on the downstream and used for controlling the dropping speeds of the water levels of the vertical shafts, so that all balance gravities drop at the same time. According to the method, the synchronism of the water levels of the vertical shafts can be improved, the inertia length of the water conveying system is reduced, and the submerge water depths of the water outlet holes are increased greatly, so that the energy of the water flows in the vertical shafts is reduced, and the stationarity of ascending and descending the balance gravities is facilitated; and the number of the balance gravities is not limited, and design and construction are facilitated.

Description

technical field [0001] The invention relates to a method for arranging a water delivery system in the technical field of water conservancy, in particular to a method for arranging a non-equal inertia water delivery system of a hydraulic floating ship lift. Background technique [0002] With the development of water transportation, ship lifts, as the main form of ultra-high head navigable structures, have been more and more used in engineering, and domestic and foreign scientists have also deepened their research on ship lifts. [0003] There are two types of ship lifts: vertical ship lift and inclined ship lift. According to the lifting device, the vertical ship lift can be divided into four types: wire rope winch type, rack and pinion climbing type, semi-hydraulic type and hydraulic floating type. Among them, the hydraulic floating ship lift is a new type of ship lift created in my country. It uses water energy as the lifting power and security measures. The two ends of th...

AI Technical Summary

Problems solved by technology

However, in inertial water transfer systems such as hydraulic floating ship lifts, according to the layout requirements of 8 counterweights on each side, the pipeline must perform four diversions in a limited space, including two horizontal diversions and two vertical diversions, especially Vertical diversion, restricted by the elevation of the bottom of the shaft and the elevation of the foundation excavation, the vertical space is limited, the distance before and after the vertical turn is short, and it cannot meet the requirement of more than 5 times the pipe diameter, which affects the uniformity of branch pipe diversion

[0007] (2) The shafts in the equal inertia water delivery system are independent of each other, and the water levels of the shafts cannot be adjusted and balanced in time, resulting in water level differences

[0008] (3) Limited by the equal inertia water delivery system, the number of counterweights must be a power of 2, and the layout lacks flexibility

Therefore, the arrangement of lifting points on the ship box is limited, and the designer cannot carry out an optimal design based on the stress conditions of the ship box itself.

[0009] ⑷The structure of the equal-inertia water delivery system is complex, requiring high construction precision and difficulty

The equal inertia water delivery system can improve the hydraulic synchronization of the ship lift operation based on its good structural symmetry. If the construction accuracy does not meet certain requirements, it will have the opposite effect and affect the hydraulic synchronization.

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