Efficient powered deicing device for aerial power transmission and distribution cables

Abstract

The invention discloses an efficient powered deicing device for aerial power transmission and distribution cables. The efficient powered deicing device comprises a base, a power unit, a control unit, a running unit and a deicing unit, the power unit, the running unit and the deicing unit are matched in a driving manner and are respectively disposed on the base, the control unit is matched with the power unit in an electrical connection manner, and the deicing unit forms a structure in wrap-around matching with a cable. The efficient powered deicing device is of a wrap-around rotary scraper structure with the running unit which is hung on the cable, and a rotary scraper rotationally scrapes coated ice from the periphery of the cable, is suitable for scraping the coated ice from thin to thick, and is integrally light, lightweight, convenient to operate and high in working efficiency. The efficient powered deicing device is particularly suitable for removing the coated ice of glaze, mixed rime and the like strong in binding force and thick in ice layer, is convenient for mounting, demounting and adjustment on a construction site by the aid of design of multiple scrapper heads and the self-running unit, has the advantages of compact structure, light weight, convenience in remote operate and long continuous working time, and is particularly suitable for deicing operation of aerial power transmission and distribution lines in mountain areas.

Description

technical field [0001] The invention belongs to the technical field of protection equipment for overhead power transmission and distribution cables, in particular to the technical field of ice removal equipment for overhead power transmission and distribution cables, and specifically relates to a high-efficiency power deicing device for overhead power transmission and distribution cables. Background technique [0002] Icing of transmission lines in winter is one of the natural disasters of the power system. Due to the increased ice load on the conductors, it will cause certain mechanical damage to the conductors, iron towers and fittings. When the ice is severe, the wires will be disconnected, the towers will be inverted, the conductors will dance and flashover and trip, resulting in large-scale power outages. Because the accident occurred in the severe winter season, the mountain was blocked by heavy snow or the road was icy, which made the emergency repair conditions very ...

AI Technical Summary

Problems solved by technology

Although the "ad hoc" method has low energy consumption and low price, it is difficult to operate and relatively poor in safety; the strong vibration method, the scheme disclosed in the Chinese patent application (application number 200810103618.5 and application number 200810080100.4), all adopt the method of percussion vibration Deicing, but the effect on rain rime and mixed rime is limited, and the deicing effect is not good

The commonly used pulley shoveling method adopts manual ground operation, which has low work efficiency, high work intensity, high degree of danger, and is greatly affected by terrain and weather. It is not easy to remove the ice layer on the cable and is easily restricted by the terrain.

The scheme disclosed in the Chinese patent application (application number 201010173736.0) adopts conical cutterhead milling and extruding to remove ice. Although the deicing effect is good, the structure is complex and inconvenient to disassemble.

Thermal deicing (melting) methods include overcurrent deicing methods and DC current deicing methods, which have large energy loss, high use and investment costs, and are prone to internal damage to cables, such as wires and OPGW optical cables, especially Aging lines are prone to internal heating and cause disconnection accidents, and can only be operated after power failure

Images