Experimental device for impact wear between heat exchange tubes

Abstract

The invention relates to an experimental device for impact wear between heat exchange tubes. The experimental device comprises a fixing mechanism, a supplementing device and a power assembly, wherein the fixing mechanism comprises a fixing bottom plate, and the fixing bottom plate is used for fixing the clamping assembly and the supplementing device; the feeding device is arranged at the upper end of the fixed bottom plate; the power assembly is connected with the clamping assembly. The device is simple in structure and ingenious in design, the positioning holes are formed in the fixed bottom plate, the mounting position of the supplementing device can be flexibly changed according to experimental conditions, and the fine adjustment assembly is matched to supplement displacement of the second sliding block, so that it is guaranteed that the heat exchange tubes are tightly attached during impact, and a certain impact load is achieved.

Description

technical field [0001] The invention belongs to the technical field of heat exchange tubes, and in particular relates to an experimental device for impact wear between heat exchange tubes. Background technique [0002] Impact wear usually occurs when the surface of a static object is continuously subjected to impact force, resulting in interface loosening or material loss, resulting in a gap between the interfaces, resulting in a small amplitude radial movement of the two interfaces. Impact wear behavior is common in the service process of equipment in many fields. [0003] The heat exchange tube is an indispensable part of the nuclear power steam generator, and it plays a heat exchange role in the specified temperature, pressure, and different media. The steam generator transfers the energy obtained by the primary circuit to the secondary side medium, and the heat exchange tubes will vibrate in the in-plane direction. When the vibration amplitude of the heat exchange tubes...

AI Technical Summary

Problems solved by technology

[0004] Due to the existence of impact damage, the formation and expansion of fatigue cracks in heat exchange tubes are accelerated, which brings hidden dangers to the stable operation and safe service of steam generators, and will directly shorten the working time of equipment parts, resulting in serious economic losses.

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