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A pressure-resistant and heat-insulated thermocouple compensation cable

A technology for compensating cables and thermocouples, applied in the direction of insulated cables, cables, circuits, etc., which can solve the problems of abnormal use, loss, casualties and property, etc., and achieve the effects of prolonging service life, improving compressive strength, and avoiding irreversibility

Active Publication Date: 2017-02-01
ANHUI HUIYI CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using a high-temperature thermocouple, the heat emitted by the compensation conductor is concentrated in the cable core, which affects the transmission signal of the compensation conductor and makes it unable to use normally
In addition, the general thermocouple compensation cable has relatively poor compressive strength, which cannot meet the needs of the actual working environment, and is prone to problems such as cable flattening and crushing, which will cause changes in the transmission signal and interruption of the transmission signal. Cause short circuit and other accidents, causing casualties and property damage

Method used

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  • A pressure-resistant and heat-insulated thermocouple compensation cable

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Embodiment Construction

[0012] Such as figure 1 as shown, figure 1 It is a schematic cross-sectional structure diagram of a pressure-resistant and heat-insulated thermocouple compensation cable proposed by the present invention.

[0013] refer to figure 1 , a pressure-resistant and heat-insulated thermocouple compensation cable proposed by the present invention includes two first compensation cables 1, two second compensation conductors 2 and an elastic steel frame 3, and the cross-section of the first compensation cable 1 is Flat, the first compensating cable 1 is composed of a compensating cable core and a flame-retardant tape wrapping layer 12, a fiber rope braiding layer 13 and a PVC inner sheath layer 14 that are sequentially coated on the compensating cable core. The compensating cable core Including two first compensation conductors 11 located on the same straight line, the cross-sections of the first compensation conductor 11 and the second compensation conductor 2 are both circular; the el...

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Abstract

The invention discloses an overvoltage-resistant heat insulation type thermocouple compensation cable. An elastic steel frame comprises a first steel sheet and second steel sheets disposed at the two ends of the first steel sheet, the first steel sheet and the second steel sheets are elastic metal plates, the cross section of each second steel sheet is arc-shaped, and the arc openings of the second steel sheets are oriented towards the outer side of the first steel sheet; two first compensation cables are arranged at the two sides of the first steel sheet disposed between the second steel sheets, and two second compensation conductors are respectively arranged at the outer sides of the second steel sheets; and the first compensation cables and the second compensation conductors are successively wrapped by a fireproof mica tape wrapping layer and a polyvinyl chloride oversheath layer so as to form the thermocouple compensation cable, the first compensation cables are disposed at the two ends of the short axis of a thermocouple compensation cable core, and the second compensation conductors are disposed at the two ends of the long axis of the thermocouple compensation cable core. According to the invention, the overvoltage strength of the cable is improved, the demands for an actual working environment are satisfied, the signal transmission quality of compensation conductors is ensured, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of wires and cables, in particular to a pressure-resistant and heat-insulated thermocouple compensation cable. Background technique [0002] At present, the compensation cable for thermocouple is used to extend the cold end of multi-point thermal electrode and mobile thermocouple, and connect with the display instrument to form a multi-point temperature measurement system. When using a high-temperature thermocouple, the heat emitted by the compensation conductor is concentrated in the cable core when it is working, which affects the transmission signal of the compensation conductor and makes it unable to use normally. In addition, the general thermocouple compensation cable has relatively poor compressive strength, which cannot meet the needs of the actual working environment, and is prone to problems such as cable flattening and crushing, which will cause changes in the transmission signal and interruption ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/18H01B7/29
Inventor 张春丽吴义华王迎春胡宏山
Owner ANHUI HUIYI CABLE GROUP
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