A high-efficiency pulse-triggered high-frequency heating device
A high-frequency heating device and pulse-triggered technology, used in heating devices, induction heating, induction heating control, etc., can solve the problems of frequency adjustment limitation, decrease in dielectric constant, and decrease.
Active Publication Date: 2021-06-01
刘伯昂
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Problems solved by technology
However, as the material is used as a medium, as the material is gradually dried, its dielectric constant is also becoming smaller, resulting in detuning of the electromagnetic wave heating loop and a decrease in efficiency. Therefore, the original electromagnetic wave heating, such as microwave ovens and induction cookers, must have a fixed frequency. , and the automatic frequency control not only brings the limitation of frequency adjustment, but also the efficiency, especially the overall efficiency, decreases with the decrease of water content, and cannot be substantially improved.
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[0013] Working process and principle: as attached figure 1 , 2 As shown, through internal information data collection and transmission (not shown in the figure), it is transmitted to the measurement and control and power supply department, and then the internal processor of the measurement and control and power supply department (not shown in the figure) performs corresponding processing and issues instructions, and the transmission department (not shown in the figure) The material to be heated is transported into the heating part for heating, and the heating is triggered by the pulse signal output by the measurement control and power supply part (not shown in the figure). (shown) is transported out of the heating section. Application principle: Use pulses to trigger transient oscillations, connect a series of transient oscillations in series, pulses and transients are formed in one-to-one correspondence, a series of transient oscillations is set in series, and each transient...
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The invention is a high-efficiency pulse-triggered high-frequency heating device, which relates to a heating and drying device for biological materials. Using the principle of LC oscillation, an oscillation circuit is designed and a capacitor is used as a heater. It acts on the capacitor medium for heating; at the same time, under the pulse trigger of the set pulse width and duty cycle, no feedback circuit is needed and DC isolation is realized between the control and the heating, and it also includes self-locking and tracking self-resonant frequency, because the circuit is always in During the continuous self-resonance gradual change state, the efficiency of the device is always kept at the highest level. The structure of the device is simple and easy to manufacture, and the efficiency is extremely high. At the same time, it cooperates with the dehumidification and drying in a low-vacuum environment, which has a very high application value.
Description
[0001] The invention relates to a heating and drying device for biological materials, in particular to a drying device for heating the material medium by using a transient current through a capacitor. Background technique [0002] Electromagnetic wave heating and drying belongs to the category of electromagnetic field medium heating, and its main related object is the moisture contained in the material. Different moisture content absorbs different electromagnetic wave energy. After the medium absorbs the electromagnetic wave, the kinetic energy of the water molecules in it increases, causing more water molecules to fly out of the material. The microcosmic mechanism of electromagnetic wave drying makes its drying speed far exceed the traditional baking and air drying methods. However, as the material is used as a medium, as the material is gradually dried, its dielectric constant is also becoming smaller, resulting in detuning of the electromagnetic wave heating loop and a decr...
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IPC IPC(8): H05B6/06H05B6/04F26B23/08
CPCF26B23/04H05B6/04H05B6/06
Inventor 刘伯昂其他发明人请求不公开姓名
Owner 刘伯昂