A stepping power ultrasonic strong pulse anti-scaling and descaling device and control method

Abstract

The invention provides a stepping power ultrasonic strong pulse anti-scaling and descaling device and a control method. The device adopts a control method in which one trigger main circuit corresponds to a group of transducer coils, so that the effect of ultrasonic pulse vibration is stronger. At the same time, two thyristor main circuits with different connection methods are triggered alternately, so that the two groups of coils of the transducer work alternately. , and adopts a step-by-step control method, which is used in anti-scaling and descaling equipment to obtain intermittent ultrasonic waves, so that the dynamic film formed by ultrasonic waves on equipment tubes and board walls will not be damaged due to the pause of ultrasonic waves, which is great for anti-scaling and descaling equipment It is beneficial, especially for equipment with fast fouling speed, the effect is obvious.

Description

technical field [0001] The invention relates to an ultrasonic anti-scaling and descaling control device and method, in particular to a step-by-step power ultrasonic strong pulse anti-scaling and descaling device and a step-by-step control method. Background technique [0002] After long-term production, sales and after-sales service, it is found that there are some problems in the existing ultrasonic anti-scaling and descaling devices, some are design problems, and some are improper selection of components. The biggest problem is the anti-scaling and descaling The descaling effect is not ideal. With the continuous accumulation of problems and the in-depth understanding of the ultrasonic descaling mechanism and magnetic transducer, a new design concept has been proposed, and a step-by-step power ultrasonic strong pulse anti-scaling and descaling device and Step-by-step control method. [0003] In the design of the step-by-step power ultrasonic strong pulse anti-scaling and d...

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Problems solved by technology

[0002] After long-term production, sales and after-sales service, it is found that there are some problems in the existing ultrasonic anti-scaling and descaling devices, some are design problems, some are improper selection of components, the biggest problem is the anti-scaling and descaling The descaling effect is not ideal. With the continuous accumulation of problems and the in-depth understanding of the ultrasonic descaling mechanism and magnetic transducer, a new design concept has been proposed, and a step-by-step power ultrasonic strong pulse anti-scaling and descaling device and step-by-step control method

[0003] In the design of the step-by-step power ultrasonic strong pulse anti-scaling and descaling device, the power device on the transducer is a high-frequency thyristor, but there are two performance parameters that do not meet the control requirements, one is the maximum withstand voltage of 1200V The other is that the cut-off frequency is up to 15KHz, which is too far away from the ultrasonic frequency. The only way to solve the frequency problem is to wind two sets of coils on the transducer and control them separately, so that the operating frequency of the thyristor can be reduced by half. , the problem is solved

There is another problem. Once the thyristor is turned on under DC, it will be out of control. Only when the main circuit current is less than the maintenance current can it be turned off. The discharge process makes the thyristor realize the ideal turn-off process

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