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Cable heating device

A heating device and cable technology, which is applied in the erection/assembly of bridges, bridges, buildings, etc., can solve the problems of looseness, falling off and service life of overlapping joints, and achieve the effect of shortening construction period, improving construction quality, and bonding firmly

Inactive Publication Date: 2015-09-23
HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a cable heating device to solve the existing problems that the winding overlapping layer and overlapping joints wound on the cable are prone to looseness, falling off and short service life

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as figure 1 with figure 2 The shown cable heating device comprises a heating layer 4 provided with a heating wire, and consists of a heating layer 4, a thermal insulation layer 3, a metal elastic pressure ring 2 and a heat insulating layer 9 stacked on one side of the heating layer 4 in order to form a shaft. To the heating ring of the opening; the metal elastic pressure ring 2 of the present embodiment is made of a stainless steel plate, the thickness of the stainless steel plate is 0.5 mm, and the 0.5 mm stainless steel plate is pressed into a stainless steel elastic pressure ring with an axial opening; Bond the other side of the insulation layer 3 superimposed on one side of the heating layer 4 on the inner surface of the stainless steel elastic pressure ring, and bond the heat insulating layer 9 on the outer surface of the stainless steel elastic pressure ring; outside the heating ring A stainless steel plate liner 1-2 is installed on both sides of the axial ...

Embodiment 2

[0016] The metal elastic pressure ring 2 of this embodiment is made of stainless steel plate, and the thickness of the stainless steel plate is 0.8 mm.

[0017] When heating the first segment of the cable 8, the heating coil is first wrapped on the outer circle of the cable 8 wound with fiber-increased elastic flexible protection material or rubber belt and polymer elastic material, and each annular tightening belt 1 The extension part of the tightening belt on the top is buckled with the tension ring buckle 1-1, and the tension ring buckle 1-1 on the extension part of the tightening belt is continuously tightened, and the tightening force is transmitted to the stainless steel elastic belt through the ring tightening belt 1 On the pressure ring, the fiber-increased elastic flexible protective material or rubber belt and polymer elastic material on the cable 8 are subjected to the positive pressure exerted by the stainless steel elastic pressure ring, thereby achieving multi-lay...

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Abstract

The invention discloses a cable heating device. The cable heating device comprises a heating layer provided with heating wires. A heating ring with an opening in the axial direction is formed by the heating layer, a heat preservation layer, a metal elastic pressurization ring and a heat insulation layer, and the heat preservation layer, the metal elastic pressurization ring and the heat insulation layer are sequentially arranged outside one side of the heating layer in a stacked mode. Multiple annular tightening belts are arranged on the metal elastic pressurization ring at intervals. Each annular tightening belt extends from the edge of one side of the axial opening of the metal elastic pressurization ring to the edge of the other side of the axial opening after bypassing the metal elastic pressurization ring. A pulling buckle is connected to one end of each annular tightening belt, and a tightening belt stretching-out part which stretches out of the axial opening and is buckled with the corresponding pulling buckle is arranged at the other end of each annular tightening belt. A temperature control sensor is arranged on the heating ring. The control end of the temperature control sensor is electrically connected with a controller. Compared with the prior art, the cable heating device has the advantages that sealing spaces can be formed between lap joint layers wound on a cable, and the cable is prevented from being corroded by water and harmful objects in the atmosphere.

Description

technical field [0001] The invention relates to the technical field of bridge construction engineering, in particular to a tool for thermally welding circular or polygonal objects such as suspension bridge cables, which need to be wrapped with fiber-reinforced elastic flexible protective belts or polymer flexible materials such as rubber. Background technique [0002] The cable is one of the most important stress-bearing components of the suspension bridge, known as the "lifeline". It has been exposed to the atmospheric environment for a long time and is subjected to erosion by various adverse environmental factors. And the cable is a non-replaceable component, so the service life of the cable directly affects the service life of the suspension bridge. The anti-corrosion method of most suspension bridge cables is as follows: the steel wire is galvanized, the cable is formed, coated with putty and wound round steel wire, and finally coated with a composite coating on its surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00B29C65/18
Inventor 刘榕胡建华李云华张欣宋利云唐小萍方海沈智慧倪雅
Owner HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD