Heat treatment furnace field calibration system and method
A heat treatment furnace and on-site calibration technology, which is applied in thermometer testing/calibration, heat measurement, and thermometers using directly heat-sensitive electric/magnetic elements, etc. Measure problems such as harsh environments to achieve real-time monitoring, convenient debugging, and reliable analysis of data
Inactive Publication Date: 2022-03-04
CHINA JILIANG UNIV
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[0005] Purpose of the present invention: to propose a heat treatment furnace on-site calibration system and method in view of the current existing problems such as poor on-site temperature measurement environment of the heat treatment furnace, inability to automatically process a large amount of data during temperature collection, and large cold-end compensation error
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[0027] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0028] refer to figure 1 As shown, this figure is a structural diagram of the on-site calibration system for heat treatment furnaces provided by the present invention. This system mainly includes three parts: temperature measuring terminal 1, temperature control terminal 2 and main control terminal 3. Wherein, the temperature measuring terminal 1 is composed of a plurality of thermocouple sensors 11 , a low thermoelectric potential multi-channel scanning switch 12 , and a temperature acquisition chip 13 . The temperature control terminal 2 is composed of a semiconductor refrigeration device 21 and a temperature controller 22 . The main control terminal 3 is composed of a single-chip microcomputer 31 , an embedded touch screen 32 , and a cloud server gateway 33 .
[0029] The cold end of the thermocouple sensor 11 is connected to the semicond...
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The invention discloses an on-site calibration system for a heat treatment furnace. The on-site calibration system comprises a temperature measuring end, a temperature control end and a main control end, wherein the temperature measuring end measures the temperature value of each detection point in the effective heating area. And the temperature control end controls the thermocouple cold end compensation temperature to keep constant. The main control end controls the temperature measuring end and the temperature control end and sends read data and calibration nodes to the cloud server through the cloud service gateway. The invention further provides a field calibration method for the heat treatment furnace, the temperature control end sets the temperature value of the cold end, after the temperature is stable, the temperature value of each detection point is collected through the measuring end, finally data are processed at the main control end, and the temperature uniformity, the temperature deviation and the furnace temperature fluctuation are calibrated. The wiring complexity of the system is greatly reduced, the functions of the system are enriched, and the automation degree of the whole system is improved.
Description
technical field [0001] The invention relates to the technical field of large-scale heat treatment furnace calibration, in particular to an on-site calibration system and method for a heat treatment furnace. Background technique [0002] Heat treatment is widely used in the fields of mechanical basic parts, aerospace devices, etc., and the heat treatment furnace is a place for heating the furnace charge. The heating temperature and temperature uniformity of the effective heating zone of the heat treatment furnace are directly related to whether the heat treatment result meets the process requirements. [0003] With the development of science and technology, people's demand for metal products and complex mechanical parts is getting higher and higher. How to more accurately judge whether the heat treatment furnace meets the process requirements and more automated and modern testing is particularly important. [0004] However, whether the temperature control instrument works acc...
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IPC IPC(8): G01K15/00G01K7/02
CPCG01K15/005G01K7/02
Inventor 杨静松孙斌赵玉晓
Owner CHINA JILIANG UNIV