Research for Field Application of Heat Exchanger Facilities using Guided Wave

摘要

Heat exchanging facilities can be divided into meeting flow and parallel flow according to the direction of the moment using the principle of heat transmission. The principle is the application of two types of axially symmetric ultrasonic tube modes and "longitudinal" modes with particle displacement coupled in axial and radial directions for transverse failures and torsional modes, oscillating in the circumferential direction only, for longitudinal failures. And, it is necessary to maintain in the optimum condition for the buried heat exchanging facilities. Particularly, Buried tubes or pipes are not proper method to inspect corrosion condition or decrease of thickness. So. we are performing these facilities through digging only. But, it is very time consuming work for testing a lot of quantity and the speed of the test is not fast also. For the supplementation of this weakness, we are contributed greatly to the improvement of quality through Guided wave system.