Flowing Heating System for Pipeline of Electromagnetic Coupling of Power Frequency Without the Iron Core and Its Structure Optimization

Author:

Zhou Feng1,Cheng Quanyou1,Zhao Han2,Zhang Zongsheng1,Wang Hao1

Affiliation:

1. Shandong University of Science and Technology College of Electrical Engineering and Automation, , Qingdao 266590 , China

2. State Grid Heze Dingtao Power Supply Company , Heze, Shandong Province 274100 , China

Abstract

Abstract In response to the current problems such as electromagnetic coupling heating equipment relying on the limitations of electronic devices mostly and difficulty in achieving uniform heating of flowing material, this paper proposed a flowing heating system for pipelines of electromagnetic coupling of power frequency without the iron core. Using the heating system of 500 kW/10.5 kV, structural and electrical parameters were obtained from theoretical calculations, and a finite element simulation model was established. Aiming at the problems of voltage waveform distortion and low power factor, the factors affecting the heating system such as pipe wall thickness and coupling gap were analyzed, and the influence laws on the heating system were obtained. The structure of the conductive ring was proposed for system optimization. In the case of the no-iron heart, the heat efficiency can reach 89.01%, the power factor increased to 0.915, and the voltage distortion was also significantly reduced. Based on the finite element simulation results, the structure of the spoiler ball was proposed to address the problem of uneven heating, and the simulation showed that the spoiler balls can optimize the heating uniformity of the heating system. This system can realize the uniform heating of material without the cost of the iron core and has the characteristics of high voltage and high power, which can provide an effective way of thinking for the electric heating of hot water, steam, hot air, etc.

Publisher

ASME International

Subject

Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment

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