Cyclone separation device

Abstract

The invention provides a cyclone separation device which can improve the efficiency of separating suspended matter in a fluid. In a cyclone type dust collection device, as a cyclone separation device, which has a hollow and substantially tapered second cyclone cylinder, an accelerating area at an upstream side and a centrifugal force amplifying area at a downstream side are arranged in a central axis (X) direction and constitute the abovementioned cyclone cylinder, in the abovementioned accelerating area, the circulation area (Ab) decrease from a start end of the central axis (X) direction to a finish end, and in the abovementioned centrifugal force amplifying area, the circulation area (Ac) decreases from the start end of the central axis (C) direction to the finish end, thus, after the flow velocity of rotating flow rises in the accelerating area, in the centrifugal force amplifying area, the increase of the rate of rise of the velocity of the rotating flow can be inhibited and the velocity (Vc) is enabled to rise, and the rotating times of the rotating flow at a relatively fast flow velocity (Vc) increases, improving the efficiency of separation of suspended matter, i.e. dust, in the rotating flow.

Description

technical field [0001] The invention relates to a cyclone separation device. Background technique [0002] In the past, as this kind of cyclone separation device, the following technology is known: the air flow is made to flow along the inner wall of the conical cylinder (corresponding to the cyclone of the present invention) to form a swirling flow, and the powder contained in the swirling flow is Centrifugation is performed (for example, refer to Patent Document 1.). The cyclone separation device is configured such that the radius of the conical cylinder decreases proportionally from one axial end toward the other end. [0003] Patent Document 1: Japanese Patent Application Publication No. 6-77661 [0004] However, in such a cyclone separator, the flow velocity of the swirling flow is accelerated in the vicinity of the outlet of the conical cylinder. This is because the relationship between the flow rate Q of the airflow, the flow velocity V, the cross-sectional area A ...

AI Technical Summary

Problems solved by technology

That is, such a cyclone separation device has the problem that the number of rotations of the swirling flow in the above-mentioned conical cylinder is small.

Therefore, there is a possibility that the centrifugal force cannot sufficiently act on the suspended matter, and the fluid in the state where the suspended matter remains passes through the cyclone separator.

Although it is also considered to reduce the difference in radius between one end and the other end of the above-mentioned conical cylinder, in this case, the flow velocity of the swirling flow does not increase, so the centrifugal force acting on the suspended matter does not increase, so there is no way to improve the suspension. The problem of the efficiency of material separation from swirling flow

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