Heating device used for thermocouple calibration

Abstract

The invention discloses a heating device used for thermocouple calibration. The heating device comprises a soaking block and a heater. The heating sleeves the periphery of the soaking block. A high-temperature-resistant heat insulating layer is arranged at the periphery of the heater. At least two temperature measurement holes used for accommodating thermocouples are arranged in the soaking block along the axial direction. The heater is connected with a temperature control device through a control cable. The soaking block is enabled to achieve higher temperature within a short period of time, and a certain size of uniform temperature field can be guaranteed so that a brand-new solution is provided for rapid thermocouple calibration. The heating device used for thermocouple calibration is simple in overall structure and convenient to install, and has the advantages of being fast in temperature increasing rate, high in calibration efficiency, fast in temperature increasing rate, high in calibration accuracy and low in life loss of the thermocouples in the calibration process in comparison with the common thermocouple identification furnace mode so that time and economic cost of calibration work is lower, the heating device can be adaptive to different shapes and specifications of thermocouples by changing the structure of the soaking block, and operation convenience of the special thermocouples can be greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of thermocouple calibration, and in particular relates to a high-speed and high-uniformity heating device for thermocouple calibration, which is suitable for occasions requiring fast and efficient calibration. Background technique [0002] The traditional thermocouple calibration method, that is, the calibration of the calibration furnace, mainly has the following disadvantages: 1. The heating speed of the calibration furnace is slow, and the cooling depends on the heat leakage of the furnace body, so the sensor works for a long time in a high temperature environment, and the life consumption is large, reducing Effective service life; 2. It is difficult to install small and special-shaped thermocouple sensors for verification of the tubular structure of the furnace chamber; 3. The time cost of verification and calibration is relatively high. Therefore, in order to solve the deficiencies in traditional calibr...

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Problems solved by technology

[0002] The traditional thermocouple calibration method, that is, the calibration of the calibration furnace, mainly has the following disadvantages: 1. The heating speed of the calibration furnace is slow, and the cooling depends on the heat leakage of the furnace body, so the sensor works for a long time in a high temperature environment, and the life consumption is large, reducing Effective service life; 2. It is difficult to install small and special-shaped thermocouple sensors for verification of the tubular structure of the furnace cavity; 3. The time cost of verification and calibration is relatively high

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