Pipeline conveying device in limited work space

Abstract

The invention discloses a pipeline conveying device in limited work space. The device comprises a rack vertically mounted on a base, two conveying rollers are movably connected to the rack in a spacedmanner in the vertical direction of the rack, the periphery faces of the conveying rollers are inwards-concave arc faces, the two axial ends of the conveying rollers are movably connected with curvature adjusting mechanisms capable of changing the arc face curvature, an elastic tightening mechanism is arranged between the two conveying rollers, at least one in the two conveying rollers is drivenby a driving mechanism to roll, and conveying of a pipeline which is clamped between the two conveying rollers and is matched with the arc faces of the two conveying rollers can be achieved. The device has the advantages that manpower and material resources are saved, the road face where the whole pipeline to be replaces is located does not need to be broken down, and in the operation process, raised dust is avoided; and the device is suitable for replacing of the pipeline laid in the limited work space of a trench.

Description

technical field [0001] The invention belongs to the technical field of replacement of pipelines laid in trenches, and in particular relates to a pipeline conveying device in a limited working space. Background technique [0002] For the steam pipeline laid in the trench, when replacing it with a high-temperature water pipeline, the traditional method is: pavement removal→earth excavation→lifting the trench cover→removing the original steam insulation pipe and bracket→laying sand cushion→laying straight Buried insulation pipe → backfill sand and soil → lay trench cover → pavement recovery. This traditional operation method has many disadvantages. It not only requires a lot of manpower and material resources to operate at the same time, which is not conducive to the optimal allocation of resources; moreover, the road surface where the entire pipeline is located needs to be removed, and large-scale earthwork operations will affect road traffic. Cause dust to pollute the enviro...

AI Technical Summary

Problems solved by technology

This traditional operation method has many disadvantages. It not only requires a lot of manpower and material resources to operate at the same time, which is not conducive to the optimal allocation of resources; moreover, the road surface where the entire pipeline is located needs to be removed, and large-scale earthwork operations will affect road traffic. Cause dust to pollute the environment

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