Hydraulic manned device for spherical tank internal inspection

Abstract

The invention provides a hydraulic manned device for spherical tank internal inspection, which belongs to the technical field of industrial special inspection equipment. Such device comprises longitudinal hydraulic telescopic arms, lateral hydraulic telescopic arms, connecting arms, a manned basket, a hydraulic station, a longitudinal rotational mechanism, and a hydraulic winch in the spherical tank. The longitudinal/transverse hydraulic telescopic arms are provide with a hydraulic cylinders and sprocket chain in the arms to stretch and compress multi-section hydraulic arms in synchronization.The longitudinal slewing mechanism drives the lateral hydraulic telescopic arms to rotate 360 degrees circumferentially by the upper connecting arms, the longitudinal hydraulic telescopic arms, and the connecting arms. The hydraulic winch makes the lateral hydraulic telescopic arms and the connecting arms to rotate 180 degrees around the hinge by retracting the wire rope through wire rope connected to the manned basket and a guide wheel in the upper connecting arm. According to the hydraulic manned device for spherical tank internal inspection, the detection device can realize lateral, longitudinal multi-directional and large-area inspection work in the spherical tank. Moreover, the installation is simple, the use is convenient, the internal safety inspection of the spherical tank is improved, and the work efficiency is also improved.

Description

Technical field [0001] The invention relates to a hydraulic manned device for regular inspection inside a spherical tank, belonging to the technical field of industrial special inspection equipment. Background technique [0002] Spherical tanks are usually used to transport and store various liquid oxygen, liquefied petroleum gas or other gaseous media such as nitrogen and oxygen. Among these media, there are some flammable, explosive, toxic, and corrosive substances. Spherical tanks in chemical plants are often arranged in groups. When a spherical tank is damaged, it is very likely to affect the surrounding spherical tanks and cause huge dangerous accidents. Therefore, it is important and necessary to inspect the spherical tank regularly. [0003] Conventional spherical tank inspection requires the construction of feet and arms. This method wastes time and has certain construction risks and difficulties. In response to this phenomenon, relevant researchers have developed differe...

AI Technical Summary

Problems solved by technology

When the device is installed, the upper and lower manholes of the spherical tank need to be arranged with structures, and the installation is relatively cumbersome; the structure at the lower manhole will affect the handling of equipment and the entry and exit of personnel, and it is impossible to rescue quickly in case of an accident; Limited by the structure itself, it is impossible to achieve no dead angle detection

[0007] The above-mentioned prior art has a series of problems such as complicated structure, inconvenient disassembly and assembly, unreasonable structural layout, and dead angles in detection.

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