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A blasting deicing device with ammunition loading mechanism

A technology of loading mechanism and ammunition, applied in overhead installation, cable installation, overhead line/cable equipment, etc., can solve problems such as insulator string inclination, short circuit, rapid rise or jump up and down, etc., to achieve simple structure of the device, guarantee safe effect

Active Publication Date: 2019-01-08
STATE GRID HEBEI ELECTRIC POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For lines with vertically arranged conductors, when the ice coating on the lower conductors falls off first (the ice coating on the conductors does not necessarily fall off at the same time), the conductors will rise rapidly or jump up and down, causing a phase-to-phase short circuit, causing the line switch to trip and power supply to interrupt
[0005] (3) The insulator string is inclined and the wire is seriously drooping
In the span where the ice is too thick, it will cause the wire to droop seriously and cause a grounding accident
[0006] (4) After the insulator string is covered with ice, the insulation performance will be greatly reduced
When the hanging insulator string is covered with ice and melts, icicles may be formed, short-circuiting the insulator string and causing a grounding accident
[0007] At present, there are mainly two types of risk removal methods: ice melting and mechanical deicing. Among them, the ice melting method is to heat the transmission line to achieve ice melting. heat generation), short-circuit ice melting (suitable for three-phase power transmission lines), high-frequency excitation ice melting (using the skin effect of high-frequency high-voltage electricity to cause resistance loss and heat on the transmission line to melt ice), using The deicing method inevitably requires a certain degree of transformation of the transmission line, and requires a large amount of energy for heating, and the cost and difficulty of deicing are high; while mechanical deicing is mainly carried out by equipment installed on the transmission line. The main method is to use knocking, shaking or blasting. The problem is that the area where the transmission line is located is generally strong wind, and the equipment is deflected by the wind, making it difficult to work effectively. The thicker ice layer on the transmission line is crushed, which makes the deicing work less effective and difficult to achieve the expected effect. The blasting method needs to fix the blasting body on the ice layer in advance, and the blasting method is external blasting, which has limited deicing effect and low efficiency.

Method used

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  • A blasting deicing device with ammunition loading mechanism
  • A blasting deicing device with ammunition loading mechanism
  • A blasting deicing device with ammunition loading mechanism

Examples

Experimental program
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Effect test

specific Embodiment 1

[0033] Specific embodiment 1, such as Figure 1 to Figure 4 As shown, the present invention is a blasting and deicing device with ammunition loading mechanism, which is used to remove the ice layer on the periphery of the transmission line. The device includes a device body 1, a blasting body 2 arranged at the tail of the device body 1, and a The main body 1 is helical, and the head of the device main body 1 is also provided with a drill bit 4, and the device main body 1 has the degree of freedom to rotate around the axis of the transmission line by means of the drill bit 4 and the driving mechanism. The present invention is driven by the transmission shaft 3 during work, and the section of the ice layer is cleaned out by personnel on the ice-coated transmission line before use, and then the deicing device of the present invention is wound and arranged on the cleaned-up transmission line, and the drill bit is used to remove the ice. Holes are drilled in the ice-covered layer, ...

specific Embodiment 2

[0035] Specific embodiment 2, described drill bit comprises the drill bit 4 that is the conical structure that is connected with transmission shaft 3, is arranged on the connection structure between drill bit 4 and device body 1, and drill bit 4 has around device body 1 by means of this connection structure. The degree of freedom of axis rotation, the connection structure includes a locking ring 5 fixed to the bottom of the drill bit 4, a positioning ring 6 is clamped between the locking ring 5 and the bottom surface of the drill bit 4, and the positioning ring 6 is set Fixed on the outer wall of the device body 1, the positioning ring 6 forms rolling contact with the bottom surface of the drill bit 4 and the ring surface of the locking ring 5 by means of balls 7 respectively. The transmission shaft 3 drives the drill bit 4 to work. When the drill bit 4 advances with the device body 1, the rolling connection of the balls on the positioning ring 6 reduces the resistance and faci...

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PUM

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Abstract

The invention relates to a blasting deicing apparatus equipped with an ammunition filling mechanism, and belongs to the field of deicing maintenance equipment of a power transmission line. A drill anda driving mechanism are adopted to drive an apparatus body to be inserted into an icing layer; by virtue of a blasting body dragged on the back side of the apparatus body, the ice layer is smashed toensure the deicing effect; the spiral apparatus body is wound around the power transmission line, so that it is ensured that the moving trajectory is spiral; the apparatus disclosed in the inventionis simple in structure; and meanwhile, the drill and the driving mechanism in the apparatus body are driven in a mechanical mode, so that damage in blasting possibly caused by an electrical element can be avoided, and safety and stability of the equipment are ensured.

Description

technical field [0001] The invention belongs to the field of deicing maintenance equipment for power transmission lines, and in particular relates to a blasting deicing device with an ammunition filling mechanism. Background technique [0002] Transmission lines are usually erected in an open field environment. When the ambient temperature drops in winter, the moisture in the air will condense on the transmission line to form icing, and the icing of transmission lines will cause the following hazards: [0003] (1) Damage to the tower. If the line is covered with ice too thick, the mechanical load of the tower will be overloaded and broken. [0004] (2) Line tripping. For lines with vertically arranged conductors, when the ice coating on the lower conductors falls off first (the ice coating on the conductors does not necessarily fall off at the same time), the conductors will rise rapidly or jump up and down, causing a phase-to-phase short circuit, causing the line switch t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G7/16H02G1/02
Inventor 李中强薛飞赵俊霞王珂范征石立志付昕龙
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD
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