What are the solutions to the noise problem of dehumidifier ventilator

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Currently, the optimal design method of the dehumidifier fan is adopted, which aims to optimize the vibration of the volute structure, so the sound field only needs to calculate the final result of the structural vibration optimization , use the software to parametrically design the fan volute, select the vibration velocity of the volute wall node as the target, and optimize the wall thickness of the volute. The results of its optimization practice prove that this method can achieve the purpose of reducing structural vibration, so How to reduce the noise problem of this equipment?

For the optimization of the volute structure of the dehumidifier fan, the application in practice can prove that the optimized The vibration of the volute is greatly reduced, which can provide an effective reference for the noise reduction research of the dehumidifier fan. Therefore, the efficiency and noise level of the dehumidifier fan have a great influence. Among them, a reasonable tandem blade design can reduce the aerodynamic noise of the fan , while keeping the aerodynamic performance basically unchanged, it is feasible to combine the reliable computational fluid dynamics technique with the response surface method, so it is feasible to be able to guide the improvement and experimental design of the dehumidifier ventilator.

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In today's dehumidifier ventilator research results, it can provide reference for the design of dehumidifier ventilator energy saving and noise reduction. The three kinds of wear resistance commonly used in dehumidifier ventilator are tested, and the welding rod The wear resistance of the surfacing layer is better than that of high chromium cast iron electrodes. The wear resistance of the surfacing layer changes with the erosion angle. This is the main reason for the uneven wear of the fan blades. There is no simple correspondence between the hardness of the surfacing layer and the wear resistance. , so it cannot be used as the main basis for designing and selecting surfacing strips.

In recent years, professional manufacturers have carried out a series of theoretical and experimental studies on the control of dehumidifier ventilators. Now this is a brief summary of these studies. Now there are not only successful experiences proved by experiments, but also Theoretical and computational results not verified by experiments, as well as some unsuccessful improvements, can promote the practical research of dehumidifier ventilator noise reduction.