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Linear dynamic surface electric coupler and its detection and temperature-measuring method

A thermocouple, dynamic technology, applied in the direction of thermometers, thermometers, measuring devices, etc., which are directly sensitive to heat, electric/magnetic components, can solve the problem of accurate measurement of furnace wall temperature, explosion, and inaccurate furnace wall temperature measurement. And other issues

Inactive Publication Date: 2006-08-09
吴加伦
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Problems solved by technology

In some equipment, after the furnace brick was damaged or partially fell off, the furnace wall temperature was inaccurate or the wall temperature monitoring and alarm system failed, resulting in serious equipment accidents such as serious overheating of the furnace wall and even explosions.
[0004] As we all know, conventional single-point thermocouples are composed of two thermocouple conductors of different materials and metal materials intersecting at one point, and a millivolt potential linear with temperature can be generated at the junction. They are not suitable for accurate measurement of furnace wall temperature.

Method used

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  • Linear dynamic surface electric coupler and its detection and temperature-measuring method
  • Linear dynamic surface electric coupler and its detection and temperature-measuring method

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0025] see figure 1 and figure 2 , a linear dynamic surface thermocouple, there is a pair of K-type thermocouple wires in the protective shell 23 of the thermocouple cable 15, that is, one is a nickel-chromium wire 24 and the other is a nickel-silicon wire 25, which are insulated from each other and have a high Negative temperature coefficient, that is, isolation material 26 whose insulation resistance decreases sharply when the temperature rises is densely packaged. The nickel-chromium wire 24 is the positive pole, and the nickel-silicon wire 25 is the negative pole. One end of the thermocouple cable 15 is provided with a convex side insert and the other end is provided with a concave side. Inserts, male side inserts and female side inserts can be connected.

[0026] see figure 1 , Both ends of the thermocouple cable 15 are covered with ferrules 12...

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Abstract

Present invention refers to a line shape dynamic surface thermocouple. It contains a pair of k type couple wire in cable protection cover, one of which is nickel-chromium wire another is nisiloy wire insulated each other and packaged by high negative temperature coefficient isolation material, nickel-chromium wire being anode and nisiloy wire being cathode, one end of thermocouple cable set convex side plug-in unit but another end set concave side plug-in unit, convex side and concave side plug-in unit being connected. Said invention is suitable for oven wall temperature accuracy measurement.

Description

1. Technical field [0001] The invention relates to a thermocouple, in particular to a linear dynamic surface thermocouple used for accurate measurement of furnace wall temperature. [0002] The invention also relates to a testing method and a temperature measuring method of a linear dynamic surface thermocouple 2. Background technology [0003] Over the years, equipment management professionals at home and abroad have always attached great importance to the safe operation of key equipment in petrochemical plants such as Texaco Gasification Shanghai, etc. at high temperature and high pressure (1350 ° C, 8.53 MPa). Accurate measurement is one of the main factors for the safe and continuous operation of equipment. In some equipment, after the furnace bricks were damaged or partly fell off, the furnace wall temperature was inaccurate or the wall temperature monitoring and alarm system failed, resulting in serious equipment accidents such as serious overhea...

Claims

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Application Information

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IPC IPC(8): G01K7/02
Inventor 吴加伦
Owner 吴加伦
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