Cable trench automatic inspection device

Abstract

The invention discloses a cable trench automatic inspection device. The cable trench automatic inspection device includes a mobile chassis; a tracked bogie is adopted as the mobile chassis; the body of the bogie is provided with a temperature and humidity sensor, a path detection camera, a data storage device and a power source supplying power for the whole automatic inspection device; the front end of the body of the bogie is provided with a lighting lamp; the body of the bogie is vertically provided with an electric push rod; the upper part of the electric push rod is provided with a holder; an imaging device is installed on the holder; two holder motors are installed in the holder; the upper part of the electric push rod is provided with a synchronous toothed wheel; the holder motors are in engaging transmission with the synchronous toothed wheel through a reduction gear, so that the holder can be driven to rotate freely in a horizontal direction; the state of a cable in a cable trench can be detected through various kinds of sensors, and the temperature and humidity of the cable trench can be detected by means of the temperature and humidity sensor, and therefore, the environmental state of the cable trench can be judged, and thus, problems such as damage to the cable caused by over-temperature of the cable in an operating process can be solved.

Description

【Technical field】 [0001] The invention belongs to the field of power system transmission line maintenance and relates to an automatic inspection device for cable trenches. 【Background technique】 [0002] Underground cable trenches are essential infrastructure in power plants and substations. The cables laid in the cable trench are used for relay protection, automatic control, communication, measurement, metering and other equipment. In reality, there are some objective problems in cable trenches that cannot be ignored, which leave hidden dangers to the safe production of power plants and substations: ①The humidity in underground cable trenches is relatively high, and cables often cause their insulation performance to decline due to moisture, and in severe cases cause Insulation breakdown, resulting in accidents; ②The cable trench is relatively closed, and the temperature is too high will cause the cable conductor material to soften, the mechanical strength will decrease, th...

AI Technical Summary

Problems solved by technology

In reality, there are some objective problems that cannot be ignored in cable trenches, which leave hidden dangers to the safe production of power plants and substations: ①The humidity in underground cable trenches is relatively high, and cables often cause their insulation performance to decline due to moisture, and in severe cases cause Insulation breakdown, resulting in accidents; ②The cable trench is relatively closed, and the temperature is too high will cause the cable conductor material to soften, the mechanical strength will decrease, the organic insulation material will age and become brittle, the insulation performance will be reduced, and even breakdown, and the cable will be easy to run if the temperature is too high Cause fire, seriously affect production, and cause major economic losses; ③ limited by geographical location, the cable trench is generally narrow, the cable laying is dense, and the laying area is large. It is very difficult to fully and accurately grasp the operation of the cable trench cable manually.

④ Power plants and substations mainly use operators to regularly hold thermal imagers and enter the cable trench for infrared detection of temperature and humidity. The working environment is poor, the work intensity is high, the workload is high and the efficiency is low

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