Device for controlling heating temperature of cylindrical workpiece and control method

Abstract

The invention discloses a device for controlling the heating temperature of a cylindrical workpiece. The device includes a control device body, the control device body is provided with a bracket for supporting a plurality of workpieces to be heated, the workpieces to be heated are uniformly and symmetrically distributed in a heating furnace, temperature measuring thermocouples are arranged at thecontact positions of the bracket and the workpieces to be heated, a temperature measuring camera is arranged on the inner furnace surface of the heating furnace, a left burner and a right burner are correspondingly arranged on the two side furnace surfaces of the heating furnace, and the heating furnace is electrically connected with a computer that collects heating temperature signals of the workpieces to be heated and performs heating-regulating. A traditional control method that takes the temperature in the furnace as an object is discarded, the temperature adjustment and control are carried out by directly taking the workpieces to be heated as targets, and the heating control accuracy and the effective heating rate and heating quality of the workpieces to be heated are greatly improved.

Description

technical field [0001] The invention relates to the technical field of heat treatment, in particular to a device and method for controlling the heating temperature of a cylindrical workpiece. Background technique [0002] The regenerative heating furnace can use the waste heat of the flue gas to preheat the fuel during the heating process. It has the advantages of low fuel consumption, relatively uniform temperature in the furnace, high heating quality, and environmental protection. It is widely used in the heating process of various workpieces middle. Because the regenerative heating furnace involves a dynamic continuous reversing process during the combustion process, it will cause fluctuations in the temperature of the upper part of the furnace; a viscous turbulent layer is formed at the bottom of the workpiece to be heated, which is not conducive to heat exchange around the workpiece to be heated; the burner airflow and furnace The mutual interference of the backflow ga...

AI Technical Summary

Problems solved by technology

However, it still has the following disadvantages: the validity of on-site experience is only limited to specific workshops and products, and the repeatability of the heating process is poor

The process of numerical simulation method is complicated, the consumption time is too long, and the calculation model needs to be properly simplified during the simulation, and the accuracy of the simulation results is low, which reduces the production efficiency and increases the production cost

In addition, the field experience or numerical simulation method is mainly used to study the environmental conditions in the furnace, and does not make real-time adjustments to the heating process according to the heating of the heated workpiece, resulting in a decrease in the effective heating rate and heating quality

Images