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Open AccessArticle

A Microwave Thermostatic Reactor for Processing Liquid Materials Based on a Heat-Exchanger

1
College of Electronic and Information Engineering, Sichuan University, Chengdu 610065, China
2
State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources, Wengfu Group, Guiyang 550014, China
3
School of Electronic Information Engineering, China West Normal University, Nanchong 637002, China
*
Author to whom correspondence should be addressed.
Materials 2017, 10(10), 1160; https://doi.org/10.3390/ma10101160
Received: 12 August 2017 / Revised: 22 September 2017 / Accepted: 30 September 2017 / Published: 8 October 2017
(This article belongs to the Section Manufacturing Processes and Systems)
Microwaves have been widely used in the treatment of different materials. However, the existing adjustable power thermostatic reactors cannot be used to analyze materials characteristics under microwave effects. In this paper, a microwave thermostatic chemical reactor for processing liquid materials is proposed, by controlling the velocity of coolant based on PLC (programmable logic controller) in different liquid under different constant electric field intensity. A nonpolar coolant (Polydimethylsiloxane), which is completely microwave transparent, is employed to cool the liquid materials. Experiments are performed to measure the liquid temperature using optical fibers, the results show that the precision of temperature control is at the range of ±0.5 °C. Compared with the adjustable power thermostatic control system, the effect of electric field changes on material properties are avoided and it also can be used to detect the properties of liquid materials and special microwave effects. View Full-Text
Keywords: microwaves; liquid materials; PLC; thermostatic reactor; non-polar coolant; heat-exchanger microwaves; liquid materials; PLC; thermostatic reactor; non-polar coolant; heat-exchanger
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MDPI and ACS Style

Zhou, Y.; Zhang, C.; Xie, T.; Hong, T.; Zhu, H.; Yang, Y.; Liu, C.; Huang, K. A Microwave Thermostatic Reactor for Processing Liquid Materials Based on a Heat-Exchanger. Materials 2017, 10, 1160.

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