Electric kiln temperature adjusting method and device
A temperature regulation and electric kiln technology, applied in the direction of furnace control devices, furnaces, furnace components, etc., can solve problems such as difficult to meet the high performance requirements of kiln temperature control, and achieve high adaptability, simple control mode, and high precision Effect
Pending Publication Date: 2019-03-26
ANHUI UNIVERSITY +2
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However, since the ceramic kiln temperature control system is a variable parameter system with large inertia, pure hysteresis and strong nonlinear characteristics, coupled with the coupling of various variables such as temperature and atmosphere, the current control method is difficult to meet the requirements of the kiln temperature control system. High performance requirements for control
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic flow chart of a method for temperature regulation of an electric kiln provided by an embodiment of the present invention, and the method includes:
[0026] Step 1. Use the temperature sensor to detect the temperature in the electric kiln and convert the detected temperature signal into...
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The invention discloses an electric kiln temperature adjusting method and device. The electric kiln temperature adjusting method comprises the steps that firstly, a temperature sensor is used for detecting the temperature in an electric kiln, and the detected temperature signal is converted into a voltage signal ufed and fed back to an IGBT trigger control circuit; the IGBT trigger control circuitcompares the feedback voltage signal ufed with a reference voltage uref to obtain a deviation signal e; a PID controller introduces the deviation signal e as input of the PID controller, and the PIDcontroller continuously corrects the deviation signal e to obtain an output voltage uf, and the output voltage uf is input into a PWM modulation circuit; the PWM modulation circuit introduces the output voltage uf as an input signal of the PWM modulation circuit, the duty ratio DR of the control signal of the IGBT trigger control circuit is adjusted according to the magnitude of the output voltageuf, and then the temperature in the kiln is adjusted. The electric kiln temperature adjusting method can not only reduce the influence on the power quality of a power grid but also has the remarkableadvantages of high precision, wide adjustment range, simple control mode and the like.
Description
technical field [0001] The invention relates to the technical field of temperature adjustment equipment, in particular to a method and device for temperature adjustment of an electric kiln. Background technique [0002] With the rapid development of today's economy and society and the continuous expansion of urban scale, people's demand for architectural ceramics is increasing day by day, and the requirements for ceramic quality and variety are also getting higher and higher. In our country, the ceramic industry is not only a traditional industry, but also a labor-intensive industry. After entering the 21st century, the country has vigorously promoted the development of the equipment manufacturing industry. Therefore, my country's traditional ceramic manufacturing industry has also entered a period of rapid development. Ceramic kilns It is the equipment used to realize the ceramic firing system. In the modern ceramic manufacturing process, the ceramic kiln still plays a pivot...
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IPC IPC(8): F27D19/00
CPCF27D19/00F27D2019/0003F27D2019/0037
Inventor 朱明星阳登辉江挺何伟孙旻
Owner ANHUI UNIVERSITY