Filtering assembly and dust collector with same

Abstract

The invention discloses a filtering assembly and a dust collector with the same. The filtering assembly comprises a box body and an air intake pipe, wherein the box body is filled with liquid and provided with an air inlet and an air outlet, the air intake pipe is connected with the air inlet, the air outlet end of the air intake pipe is positioned inside the box body and extends towards the liquid or is submerged in the liquid, and the cross section area of the air intake pipe gradually increases along the flowing direction of fluid inside the air intake pipe. According to the filtering assembly, the air outlet end of the air intake pipe is fabricated into a diffuser so as to effectively reduce flow speed of air containing dust injected into the liquid by the air intake pipe, increase the mixing time and contact area between the air containing dust and the liquid, mix the air containing dust with the liquid better, improve filtering effect, decrease impacts of gas phase and liquid phase, effectively suppress noise produced during burst of bubbles, reduce height of splashed water, and facilitate gas-liquid separation.

Description

Technical field [0001] The present invention relates to the field of cleaning equipment, in particular to a filter assembly and a vacuum cleaner having the same. Background technique [0002] The filter water tank is the core component of the water filter vacuum cleaner. It uses clean water as the filter material to replace the dust cup, dust box and other structures commonly used in traditional vacuum cleaners. It does not require additional replacement of dust bags, HEPA nets and other consumables. Moreover, the water filter dust is obvious, and the dust can be dumped directly after being mixed with water, without causing the problem of dusting, so as to achieve the ultimate cleaning effect. The intake pipe in the filter water tank is an important component, and its performance will directly affect the water's ability to filter dusty gas and the subsequent water-gas separation effect. [0003] Some air intake pipes in the related art are circular pipes with equal cross-sections ...

AI Technical Summary

Problems solved by technology

[0003] Some air intake pipes in the related art are circular pipes with equal cross-section or rectangular pipes with equal cross-section. However, such air intake pipes will introduce dust-laden large bubbles with the same cross-sectional size into the water because they are constructed in a constant-section shape. It is difficult for these bubbles to collapse into small bubbles of smaller scale, so that the effect of mixing with water is not good; in the related art, some inlet pipes are designed with non-equal cross-section structures, which are generally simply carried out at the mouth of the circular pipeline. The stamping process stamps its nozzle into a flat tube structure. However, the flow cross-sectional area of ​​such an intake pipe varies unevenly, and the air flow loss is large, which will increase energy consumption.

In addition, some intake pipes are designed with circular pipelines with tapered cross-sections. However, the length of the flow section of this type of intake pipe is consistent in all directions, and the area in the flow direction is uniformly reduced, which is likely to cause the problem of large particles of garbage blocking the intake pipe. , and, no matter the inlet pipe with constant cross section or tapered cross section, it will cause the gas to impact violently on the water, resulting in large bubble collapsing noise and affecting the separation of water and gas

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