OPTIMIZATION OF HYSTERESIS CLUTCH TEETH ZONE GEOMETRY IN OIL PIPELINE SHUT-OFF VALVES

Abstract

The relevance of the paper is related to the search for new efficient technical solutions in the sphere of electric drives for oil pipeline valves based on using the hysteresis principle of electromechanical energy conversion and new hard magnetic materials. The main aim of the research is to reveal with the analysis of the hysteresis layer magnetization the teeth zone optimal geometry of the electromagnetic hysteresis clutch based on the Fe-Cr-Co alloy to obtain the maximum torque. The methods: experimental methods for studying the magnetic characteristics of magnetically hard materials using the original laboratory installations; simulation in the ANSYS MAXWELL, the theoretical methods of electromagnetic field analysis. The results. The authors have obtained and investigated torque dependences on the teeth zone geometric parameters for the clutches based on Fe-Cr-Co 22X15KA alloy. To value the hysteresis material efficiency, the authors introduced the hysteresis layer use coefficient according to the magnetic field tangential component. The model of the electromagnetic hysteresis clutch with fixed control winding, taking into account the parameters of the alloy of Fe-Cr-Co 22X15KA was developed in the ANSYS MAXWELL program. To obtain the maximum torque at the limited clutch sizes and mass the optimal teeth zone geometric dimensions were determined. It is concluded, that the pipeline shut-off valves electric drive with hysteresis clutch and induction motor due to the ease of implementation, the possibility of regulating and limiting the torque in the wide temperatures and rotation speeds range, can be considered as a promising alternative to electric drives with frequency control and thyristor regulators.

Keywords

• electromagnetic clutch
• simulation
• electrical drive
• torque
• hysteresis
• hard magnetic material
• valves
• oil pipeline