Electromagnetic heating device and load self-adaptation method thereof

Abstract

The invention provides an electromagnetic heating device and a load self-adaptation method thereof, and relates to the field of automatic heating. Through calculation on flow, temperature and set temperature of to-be-heated liquid, the heat energy needed for heating the to-be-heated liquid to the set temperature is obtained, and accordingly the heating device is controlled to conduct heating with proper heating power; and when the flow and temperature or the set temperature of the to-be-heated liquid changes, the heating power of the heating device is adjusted so as to meet the new heating set requirement. The heating device comprises a plurality of heating sets, wherein every two heating bodies are in one set. The heating power is changed by increasing or reducing the number of the running heating bodies, and when the running time of one heating body in one heating set exceeds the preset time threshold value, the other heating body runs and replaces the heating body to work; and the situation that the heating bodies are excessively used, fatigue damage happens in advance is avoided, and the function that the problem that in the prior art, the heating power cannot be adjusted in a self-adaptation manner, and the heating bodies are excessively used is solved is achieved.

Description

technical field [0001] The invention relates to the field of automatic heating, in particular to an electromagnetic heating device and a load self-adapting method thereof. Background technique [0002] In daily life and industrial production, the application of boilers can be seen everywhere. Energy conversion is carried out through the boiler, and the input energy is converted into steam with certain heat energy, high-temperature water or organic heat carrier. [0003] Different from combustion boilers that use fuel for combustion and heating, electric boilers are more convenient and environmentally friendly to use, do not require fuel transportation and occupy a larger area, and have higher thermal efficiency and more precise temperature control. [0004] However, the existing electric boilers have the following problems during use: only the power can be adjusted, and the heating power cannot be automatically changed with the increase or decrease of the liquid and the cha...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an electromagnetic heating device and its load self-adaptive method. By calculating the flow rate, temperature and set temperature of the liquid to be heated, the thermal energy required to heat the liquid to be heated to the set temperature is obtained, thereby controlling the heating. The device heats with an appropriate heating power, and when the flow rate, temperature or set temperature of the liquid to be heated changes, the heating power of the heating device is adjusted to meet the new heating setting; the heating device has two heating bodies as one The heating group of the group can change the heating power by increasing or decreasing the number of running heating bodies. When the running time of a heating body in a heating group exceeds the preset time threshold, another heating body will be run to replace it, avoiding the heating of the heating body. Fatigue damage in advance due to overuse, so as to realize the function of solving the problems of the prior art that cannot adaptively adjust the heating power and excessive use of the heating body

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