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Large-air-volume energy-saving silencing type induction fan

A technology of inducing fans and large air volumes, which is applied in the direction of mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of not doing noise reduction and noise reduction, and achieve the effect of reducing noise and reducing external influences

Active Publication Date: 2020-12-04
ZHEJIANG SHANGFENG SPECIAL BLOWER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the induction fan is working, several induction fans are usually connected in series to form a group and work at the same time. The noise has become a very important indicator. At present, the induction fan with large air volume takes into account the installation space, and usually does not perform noise reduction and anechoic treatment.

Method used

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  • Large-air-volume energy-saving silencing type induction fan
  • Large-air-volume energy-saving silencing type induction fan
  • Large-air-volume energy-saving silencing type induction fan

Examples

Experimental program
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Embodiment Construction

[0042] Such as Figure 1-26As shown, a large air volume, energy-saving and noise-eliminating induced fan includes a housing 1, a volute 2 disposed in the housing 1, and an impeller 22 disposed in the volute 2. The impeller adopts a backward-inclined centrifugal fan. Type impeller, optimized by CFD flow field simulation technology, the impeller inlet section is arc-shaped to ensure a smooth transition with the fan inlet pipe, the impeller material plastic mold is molded at one time, compact structure and light weight, low noise, high efficiency, and stable operation Reliable and other features; the shell is made of steel plate, one end of the shell 1 is provided with a first air inlet, the other end is provided with a first air outlet, and the top of the shell 1 is provided with a drive for driving the impeller 22 to rotate The motor 31, the driving motor is a CE brushless DC speed-regulating motor, which operates in a self-controlled manner and does not need an external freque...

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Abstract

The invention discloses a large-air-volume energy-saving silencing type induction fan. The large-air-volume energy-saving silencing type induction fan comprises a shell, a volute arranged in the shelland an impeller arranged in the volute, a first air inlet is formed in one end of the shell, a first air outlet is formed in the other end of the shell, and a driving motor used for driving the impeller to rotate is arranged at the top of the shell. A first cavity is formed in the side wall of the shell, the first cavity is filled with a silencing layer, and a guide assembly capable of pulling the silencing layer to move in the first cavity is arranged in the first cavity. A cover plate is arranged in the first cavity. Under the arrangement of the silencing layer, vibration noise generated bygas flowing is absorbed, noise generated when the fan works is effectively lowered, and the influence of the fan on the outside is reduced.

Description

technical field [0001] The invention belongs to the technical field of fans, in particular to a large-volume, energy-saving and noise-absorbing induction fan. Background technique [0002] The induced fan is to send the fresh air supplied from outside to the required area through several indoor induced fans step by step, and to send it to the required area under the condition of no air duct, and at the same time induce the exhaust gas tissue to be discharged from the exhaust fan. It is a kind of to cost-effective ventilation. It is mainly used for ventilation and air conditioning in large-volume ventilation places such as parking garages, subway depots, joint maintenance warehouses, sports and commercial venues, and large factory buildings; since no ventilation ducts are used, the operation mode of the induction fan system can be adjusted According to different ventilation needs or smoke exhaust requirements, the intelligent control system can be used to change the organiza...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/42F04D29/62F04D29/66
CPCF04D25/08F04D29/4226F04D29/626F04D29/664
Inventor 张磊丁伟平夏洪洋
Owner ZHEJIANG SHANGFENG SPECIAL BLOWER IND CO LTD
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