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Ampoule for testing temperature field of hearth

A furnace temperature and ampoule technology, applied in the field of sensing temperature measurement, can solve problems such as real-time measurement of tube furnaces, and achieve the effects of simple production, avoiding short circuits and maintaining insulation

Inactive Publication Date: 2015-03-25
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, the present invention aims to overcome the technical defect that the existing technology cannot realize accurate and real-time measurement of the furnace temperature of the tube furnace. Temperature distribution without damaging the furnace structure of the tube furnace

Method used

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  • Ampoule for testing temperature field of hearth
  • Ampoule for testing temperature field of hearth

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Experimental program
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Effect test

Embodiment 1

[0049] According to the size and shape requirements of the tube furnace, the outer diameter of the ampoule 1 is designed to be 16mm, the bottom surface of which is rounded and chamfered R4, and the height is 200-300mm. The outer wall of the temperature measuring ampoule is a thin-walled stainless steel sleeve with a wall thickness of 0.08-0.15mm, and the inner wall is a quartz glass tube. The stainless steel sleeve matches the quartz glass tube, but the inner diameter of the stainless steel sleeve is 0.5-1mm larger than the outer diameter of the quartz glass tube.

[0050] Process the aluminum oxide foam brick 4 into the same shape as the bottom of the ampoule 1, the height is 33mm, and the surface in contact with the thermocouple is a plane, dig a 2mm diameter hole in the center of the plane, and the depth is 3mm, and then put it into in a quartz glass tube.

[0051] Put the two bare wires of the positioning thermocouple 3 into the double-hole alumina ceramic tube with an ou...

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Abstract

The invention provides an ampoule for testing the temperature field of a hearth. The ampoule comprises an outer shell and a thermocouple set which is fixed in the outer shell and used for measuring temperature. The thermocouple set comprises a positioning thermocouple fixed in the ampoule and a plurality of temperature measurement thermocouples surrounding the positioning thermocouple, wherein measurement heads of the temperature measurement thermocouples are spaced by a certain distance in the axial direction. The ampoule can be used for obtaining temperature distribution inside the hearth in real time and in situ, and does not affect the furnace body structure of a tube furnace.

Description

technical field [0001] The invention belongs to the technical field of temperature sensing, in particular to an ampoule for testing the temperature field of a furnace. Background technique [0002] The test and determination of the furnace temperature field distribution in the tube furnace body has important guiding significance for the material science experimental research such as the melting and solidification process of materials, crystal growth process, material microstructure and performance control, and is conducive to promoting advanced functions. Development and exploration of materials and new organizational structures. [0003] Due to the characteristics of the tube furnace itself, the furnace needs to place samples so that the temperature measuring device cannot be installed in the furnace for a long time, and the structural characteristics of the tube furnace make the temperature distribution in the furnace not as uniform as that of the box furnace. But it is p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/04
Inventor 刘岩张明辉温海琴汤美波艾飞潘秀红于惠梅高国忠盖立君邓伟杰
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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