Big crane pipe locking type sealing device

Abstract

The invention relates to a big crane pipe locking type sealing device which comprises an upper locking mechanism, a lower locking mechanism, and a sealing cover assembly for sealing a wagon spout of atank wagon. The sealing cover assembly comprises a big cover plate; an open hole matched with a lifting pipe of a crane pipe is formed in the middle of the big cover plate; a gas-phase barrel is arranged on the open hole; a gas-phase port upper sealing assembly is arranged at the other end of the gas-phase barrel; a connector matched with an external oil gas recovery pipeline is arranged on the side part of the gas-phase barrel; a pressing power mechanism is further arranged on the gas-phase barrel; the output end of the pressing power mechanism is hinged with the lower locking mechanism; theupper locking mechanism is used for being fixedly arranged on the crane pipe so as to lock the lifting pipe of the crane pipe and the crane pipe. According to the device, through the matching of theupper locking mechanism and the lower locking mechanism, the wagon spout is locked and sealed by utilizing the big cover plate, so that a large sealed locking force can be produced, an elastic sealingpad and the wagon spout are in a favorable sealing state, and oil gas is prevented from being leaked from the wagon spout.

Description

technical field [0001] The invention relates to the field of oil or chemical product loading and unloading, in particular to a large crane tube locking type sealing device. Background technique [0002] Crane tube is the equipment with fast loading speed and high efficiency for oil products. The main structural principle is that the horizontally movable walking trolley and bracket are installed on the steel structure truss. The trolley can only move horizontally, and the vertical direction is limited to stop movement. The chain is flexibly connected to the lifting cylinder on the bracket. The lifting pipe passes through the tee assembly and can slide up and down on the tee assembly. The tee assembly and the liquid phase pipeline are connected through a telescopic sleeve or a universal rotating arm, and are pulled by an oil cylinder. Horizontal movement, the upper end of the lifting tube is provided with an opening, and the sealing cover is set on the lifting tube; when the c...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, crane tubes are mainly used for loading light oil products or chemicals such as gasoline, aviation fuel, and benzene train tank cars. Because these media are highly volatile, the crane tubes are loaded at a fast speed A large amount of oil and gas are generated. At present, the sealing covers used in closed loading of crane tubes generally include flat sealing covers and flat folding sealing covers, which mainly rely on the self-weight of the sealing covers to compress the rubber pads. However, such sealing covers are light in weight and cannot generate enough oil. The pressing force made the rubber pad deformed to seal the tank mouth, and the oil and gas leaked seriously, failing to meet the "Emission Standards of Air Pollutants for Oil Storage Areas"

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