Spiral dust-gas separation device and gas purification device

Abstract

The invention provides a spiral dust-gas separation device and a gas purification device. The spiral dust-gas separation device comprises a cup body and a separator; the separator comprises an upper flow guiding vane, a lower flow guiding vane, an inner pipe and an outer pipe, wherein the upper flow guiding vane and the lower flow guiding vane are parallel to each other and spiral downward; a first guiding passage is arranged between the outer wall of the separator and the inner wall of the cup body; the outer pipe, the inner pipe, the upper flow guiding vane and the lower flow guiding vane jointly form a second guiding passage. Through the arrangement of the first guiding passage and the second guiding passage, secondary separation of airflow containing dust is achieved, a better effectof separating the dust from gas is achieved, the spiral dust-gas separation device only comprises the cup body and the separator, the cup body can be sleeved with the separator to achieve the separation, and the structure is simple and compact.

Description

technical field [0001] The invention relates to the technical field of vacuum cleaners, in particular to a spiral dust gas separation device and a gas purification device. Background technique [0002] The dust cup vacuum cleaner is loved and used by more and more people because the dust cup can be used repeatedly, which is different from the dust bag type that requires frequent replacement of the dust bag. The separator in the existing vacuum cleaner mostly adopts the cyclone type secondary separation, the air containing impurities enters the dust cup along the tangential direction, and during the rotation process from top to bottom, the density of large particles and heavier impurities is greater than that of air, so Due to the large centrifugal force, it collides with the inner wall of the first-stage separator and loses inertia and falls into the lower dust collection chamber to be separated from the air. The finer impurities and air enter the second-stage separator, and...

AI Technical Summary

Problems solved by technology

[0003] Patent CN105246385A discloses a cyclone separation device, such as figure 1 As shown, it includes a cyclone chamber 5, a collection chamber 6, a guide member 8 and an intermediate exhaust pipe. The front end enters the guide surface, and then enters the collection chamber 6 from the tail end. The structure of the separation device is simple, but the characteristic is that the rotating air flow is close to the exhaust pipe in the middle, which makes it easy for dust to be separated during the cyclone separation process because it is too close to the exhaust pipe. And directly discharged, the separation effect is poor

[0004] Patent CN101816537B discloses a cyclone separation device, such as figure 2 As shown, it includes an upstream cyclone separation device 2 and a downstream cyclone separation assembly 8 arranged around the central axis 16 of the cyclone separation device, and the downstream cyclone separation assembly 8 includes several cyclones 9 connected in parallel to each other, which are jointly constructed The bent whirlwind air duct realizes multi-stage separation of dust and gas, thereby effectively solving the defect of poor separation effect existing in CN105246385A

The cyclone separator described here is a combination of multiple parts to form the primary and secondary separation chambers. The disadvantage is that there are many parts and the structure is complicated.

Images