Operation method of multi-head movable unloading crane-form pipe

Abstract

The invention discloses an operation method of a multi-head movable unloading crane-form pipe, and belongs to the technical field of crane-form pipes. The operation method comprises the following steps that A, the multi-head movable unloading crane-form pipe is prepared; B, telescopic vertical pipes are aligned to openings of a tank car; C, an oil-submerged pump and an oil suction opening enter and arrive at the bottom of the tank car; D, a vane pump and the oil-submerged pump are started to conduct oil suction operation, the oil-submerged pump is driven to suck liquid in the tank car throughthe oil suction opening, the telescopic vertical pipes and liquid phase pipes, and thus, oil unloading operation is completed; and E, after unloading is completed and the telescopic vertical pipes drive the oil-submerged pump and the oil suction opening to be disengaged from the openings of the tank car, loading is finished. According to the operation method, loading and unloading operation of multiple types of media can be completed at one loading and unloading station, all medium crane-form pipes are independent from one another, the effect that the media are not polluted is ensured, and thecost is greatly reduced; and the positive pressure oil unloading mode is adopted, the crane-form pipe is free of air resistance and cavitation phenomena, the oil unloading speed can be greatly increased, and the efficiency is improved.

Description

[0001] The patent application of the present invention is a divisional application with the application number: 2014108352441. The filing date of the original application is: 2014-12-30. The name of the invention is: a multi-head mobile unloading crane tube. technical field [0002] The invention belongs to the technical field of crane tubes, and more specifically relates to an operation method of a multi-head mobile unloading crane tube. Background technique [0003] At present, there are many types of crane pipes for unloading vehicles, but because most of the crane pipes for unloading oil are prone to air resistance and cavitation when unloading tanks in high temperature and low pressure areas, oil depots around the world have to add submerged pipes to the oil unloading system. oil pump. And in the prior art, the general crane tubes are all installed at a single head. If loading and unloading several different media, there must be several crane tubes for loading and unloa...

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Problems solved by technology

[0003] At present, there are many types of crane pipes for unloading vehicles, but because most of the crane pipes for unloading oil are prone to air resistance and cavitation when unloading tanks in high temperature and low pressure areas, oil depots around the world have to add submerged pipes to the oil unloading system. oil pump

Moreover, in the prior art, the crane tubes are generally installed at a single head. If loading and unloading several different media, there must be several crane tubes for loading and unloading, which takes up space and the electro-hydraulic control system cannot be fully utilized.

The translation, lifting and rotation of the crane tube use five rotary joints to meet the movement of the three coordinates of the telescopic tube. This result has many dynamic sealing points, which is easy to cause leakage points

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