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High-temperature furnace control device and temperature control method

A technology for control devices and high-temperature furnaces, applied in the direction of furnace control devices, furnaces, furnace components, etc., can solve problems such as damage and deformation, and achieve the effects of avoiding expansion, reducing manual operations, and preventing overload current shocks

Pending Publication Date: 2019-08-02
泰安磐然测控科技有限公司
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] 3. Furnace shutdown process: During the cooling process of the high-temperature furnace, the rapid cooling of the furnace may cause problems such as deformation, cracks and other damage to the high-temperature refractory parts and materials in the furnace due to rapid cooling

Method used

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  • High-temperature furnace control device and temperature control method
  • High-temperature furnace control device and temperature control method

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Embodiment Construction

[0044] A kind of high temperature furnace control device see figure 1 , It includes start / stop self-locking circuit 1, phase-shift voltage regulating module 2, transformer 3, current transmitter 4, temperature control thermocouple 7, high temperature furnace controller 18, surface thermometer 19, touch screen console 20. The high temperature furnace controller includes a furnace temperature signal conditioning circuit 9, A / D1 10, A / D2 11, D / A 12, D / A output driver 13, start / stop control interface 14, CPU 15, communication interface 16, Temperature rise inspection interface 17. The temperature control thermocouple 7 is a type B thermocouple, the working end of which is placed in the effective working temperature zone of the high temperature furnace 5, the reference end is connected to the input end of the furnace temperature signal conditioning circuit 9 via an extension wire, and the current transmission The input end of the device 4 (that is, the toroidal core, through electro...

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Abstract

The invention discloses a high-temperature furnace control device and a temperature control method. The device comprises a start / stop self-locking circuit, a phase-shifting voltage regulating module,a transformer, a current transducer, a temperature control thermal electric couple, a high-temperature furnace controller and a touch screen control desk, and the high-temperature furnace controller comprises a furnace temperature signal conditioning circuit, an A / D1, an A / D2, a D / A, a D / A output driver, a start / stop control interface, a CPU, a communication interface and a temperature rise inspection interface. According to the high-temperature furnace control device and the temperature control method, heating current is detected in real time by the high-temperature furnace controller being connected with the current transducer, the phase-shifting voltage regulating module is adjusted and controlled, reasonable temperature control of a high-temperature furnace is realized, and the whole device and method have the characteristic of being safe, reliable and reasonable in the temperature control.

Description

Technical field [0001] The invention relates to the technical field of automatic temperature control, in particular to an operation protection control device and a temperature control method of a high-temperature thermocouple verification furnace. Background technique [0002] The high-temperature thermocouple verification furnace (hereinafter referred to as "high-temperature furnace") is mainly used as the temperature source for the verification of B-type thermocouples, tungsten-rhenium thermocouples and other high-temperature thermocouples, and its working temperature range is usually (1100~1500)℃ or even more high. At present, the main materials for making high-temperature furnace heating bodies are platinum-rhodium alloy wires and silicon-molybdenum rods made of molybdenum disilicide materials. Both of them have the characteristics of low cold resistance and positive temperature coefficient of resistance. The state resistance is usually in the order of (0.1~1)Ω, so the power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D19/00F27D21/00
CPCF27D19/00F27D21/0014F27D2019/0037
Inventor 徐军梁兴忠穆蕾
Owner 泰安磐然测控科技有限公司
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