Ultrasonic descaling energy converter for plate heat exchanger and descaling method of ultrasonic descaling energy converter

Abstract

The invention discloses an ultrasonic descaling energy converter for a plate heat exchanger and a descaling method of the ultrasonic descaling energy converter. The ultrasonic descaling energy converter comprises a radiant surface. The radiant surface is of a flat horn-shaped structure. Multiple magnetostriction rods are mounted at the bottom of the radiant surface. A rear cover plate is mounted at the other ends of the magnetostriction rods. The bottom of the radiant surface and the rear cover plate clamp the magnetostriction rods through a fastening device. A coil is wound around each magnetostriction rod. A magnetostriction material is adopted as a vibration source, the mechanical life of the ultrasonic descaling energy converter is long, and the ultrasonic descaling energy converter can continuously work for a long time. According to the ultrasonic descaling energy converter, the radiant surface is in a flat horn shape, a parallel excitation manner is adopted in an excitation source, and therefore high descaling efficiency and reliability are achieved. In addition, the energy converter does not need to be welded to the plate heat exchanger, an immersion manner is adopted for work, and therefore any mechanical damage is not caused to the heat exchanger.

Description

technical field [0001] The invention relates to the technical field of heat exchange devices, in particular to an ultrasonic descaling transducer for a plate heat exchanger and a descaling method thereof. Background technique [0002] Plate heat exchangers are widely used in metallurgy, construction, chemical industry, food, medicine, aviation and power industries. The plate heat exchanger is composed of specially pressed stainless steel plates stacked together, with a small plate spacing. When fluids of different temperatures flow between the plates, strong turbulence can occur, which strengthens the heat transfer process. It has the advantages of high heat transfer coefficient, large logarithmic average temperature difference, small end temperature difference, small footprint, small heat loss, flexible assembly, light weight, and convenient maintenance. [0003] However, in practical applications, the accumulated dirt on the surface of the heat exchanger seriously affects...

AI Technical Summary

Problems solved by technology

When it is welded on the heat exchange plate, it will cause mechanical damage to the plate and affect the service life; when it is welded on the pipeline, the descaling effect will be greatly reduced due to the vibration isolation of the sealing material between the plates

In addition, the current descaling transducers generally use piezoelectric ceramic vibration sources and adopt continuous excitation methods. Due to the limitation of their mechanical life, they are not suitable for long-term work.

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