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Method and device for controlling temperature of industrial microwave equipment

An industrial microwave and equipment technology, which is applied in the field of temperature control of industrial microwave equipment, can solve the problems of low precision and achieve the effect of high heating and cooling speed control and high precision

Active Publication Date: 2016-03-02
湖南华冶微波科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a method and device for controlling the temperature of industrial microwave equipment to overcome the problem of low precision in the prior art due to the use of direct comparison method or PID mediation method to adjust the power of the microwave source to adjust the temperature. question

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  • Method and device for controlling temperature of industrial microwave equipment
  • Method and device for controlling temperature of industrial microwave equipment
  • Method and device for controlling temperature of industrial microwave equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Please refer to the attached figure 1 , which is a specific flowchart of a method for controlling the temperature of industrial microwave equipment disclosed in Embodiment 1 of the present invention, the method specifically includes the following steps:

[0050] S101: The processor calculates the speed and acceleration of the temperature change at the current sampling point.

[0051] S102: The processor calculates the temperature change speed of the sampling point after a preset time according to the temperature change speed and acceleration of the current sampling point, and the preset time is a multiple value of a preset sampling period.

[0052] S103: The processor calculates a difference between the temperature change speed of the sampling point after the preset time elapses and the preset temperature change speed.

[0053]S104: The processor adjusts the output power of the industrial microwave equipment according to the difference, so that the difference is zero a...

Embodiment 2

[0057] Please refer to the attached figure 2 , which is a specific flowchart of another method for controlling the temperature of industrial microwave equipment disclosed in Embodiment 2 of the present invention, the method specifically includes the following steps:

[0058] S201: The processor calculates the speed and acceleration of the temperature change at the current sampling point.

[0059] Specifically, the processor can obtain the first temperature value of the current sampling from the thermocouple or infrared thermometer through the temperature transmitter, and obtain the second temperature value of the previous sampling point adjacent to the current sampling point, After that, calculate the quotient of the difference between the first temperature value and the second temperature value and the speed sampling period, and the quotient value is the speed of temperature change at the current sampling point.

[0060] Correspondingly, the processor obtains the first velo...

Embodiment 3

[0084] Please refer to the attached image 3 , is a specific structural schematic diagram of a device for controlling the temperature of industrial microwave equipment disclosed in Embodiment 3 of the present invention. The device specifically includes the following units:

[0085] The first calculation unit 11 is used to calculate the speed and acceleration of the current sampling point temperature change;

[0086] The first calculation unit is specifically used for:

[0087] Obtain the first temperature value of the current sampling point;

[0088] Obtaining a second temperature value of a previous sampling point adjacent to the current sampling point;

[0089] calculating the quotient of the difference between the first temperature value and the second temperature value and the speed sampling period, where the quotient is the speed of temperature change at the current sampling point;

[0090] Get the first velocity of the current sampling point;

[0091] Acquiring the s...

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Abstract

The invention discloses a method and device for controlling the temperature of an industrial microwave device. The method includes the following steps: a processor calculates a peed and an accelerated speed of temperature change of a current sample point; according to the speed and the accelerated speed of the temperature change of the current sample point, a speed of temperature change of the sample point after a preset time is calculated, wherein the preset time is a multiple value of a preset sampling period; a difference value of the speed of the temperature change of the sample point after the preset time and a preset temperature change speed is calculated; and at last, according to the difference value, an output power of the industrial microwave device is adjusted so as to enable the difference value to become zero after the preset time. Through the method and device, temperature increase and decrease speed control of higher precision can be realized and thus the industrial microwave device is enabled to achieve an objective of accurate temperature control at fixed time and place.

Description

technical field [0001] The invention relates to the technical field of temperature control of industrial microwave equipment, and more specifically relates to a method and device for controlling the temperature of industrial microwave equipment. Background technique [0002] Microwave heating, for some specific materials, has obvious advantages such as fast heating speed and short heating time. When setting the temperature curve in industrial microwave equipment for automatic temperature control, under the condition that the power is satisfied, multi-segment curve control should be performed according to the set temperature value and the set time. That is, in the heating or cooling section, the set target temperature must be reached within the set time; while in the holding section, the heat preservation state with high temperature control accuracy must be maintained within the set time. During temperature control, it is necessary to adjust the power of the microwave source...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/68
Inventor 尹向阳郭富成黎斌
Owner 湖南华冶微波科技有限公司