Research And Numerical Simulation Of Electric Cyclone Dust Collector With Waste Heat Untilization

Industrial emissions standards among countries for more and more strict,so how to solve good recovery and utilization of this part of the low grade heat energy will have important practical significance to energy conservation and emissions reduction,in the low temperature waste heat utilization will become the important subject in research of energy saving. At the same time because the electrostatic cyclone dust extractor has simple structure, low operation cost, high efficiency of dust collection and dust removal the advantages of strong adaptability is dust on international research of active field in recent years. This paper designed a kind of industrial waste heat utilization type electric cyclone boiler, waste heat utilization technology and the cyclone dust removal technology integration, to achieve the goal of energy conservation and emissions reduction.In this paper, waste heat utilization type cyclone, in the case of a waste heat utilization and use of electric field force to strengthen heat transfer, through the flow field, temperature field and electric field between the composite field synergy to strengthen heat transfer; In the aspect of dust removal in the original electric cyclone dust removal of the centrifugal force, electric field force to join the thermophoresis force to force more compound dust removal effect.Based on the design, manufacture and build dust and heat transfer experiment platform, the filter inside the part cone dust removal and flue gas as working medium, the external dust collector with water as working medium, heat transfer part through the simulation we find that in the precipitator, electric field enhanced heat transfer effect, when the applied voltage 15000 v, the air flow is 2500 l/h, h the largest electric field strengthening coefficient, can be up to 1.84;Confirmed the electric convection heat transfer of air as working medium reinforcement. In voltage 20000 v at the same time, the air flow is 1350 l/h, by changing water and flue gas temperature difference value, confirmed the flue gas temperature is higher, the lower the temperature of the water that the bigger the temperature difference between them, the thermophoresis force, the greater the thermophoresis the dust removal process of dust removal effect is better.By using the method of numerical simulation, and then this paper, the dust collector on the numerical simulations of the initial state, to explore the influence factors analysis of the flow field characteristics, for optimal design of the device’s subsequent may provide the reliable theory basis.