Swirling flow producing apparatus, method of producing swirling flow, vapor phase generating apparatus, microbubble generating apparatus, fluid mixer and fluid injection nozzle

Abstract

There are provided a fluid injection nozzle, a fluid mixer, a microbubble generating apparatus, a vapor phase generating apparatus, a method of producing swirling flow, and a swirling flow producing apparatus that can be applied to any kind of fluid and can efficiently generate a swirling flow at high speed. The swirling flow producing apparatus includes a housing and a cylindrical member. The housing includes a cylindrical portion of which at least one end is opened, and a fluid introducing passage that is opened on an inner peripheral surface of the cylindrical portion. The cylindrical member is provided in the cylindrical portion of the housing. The cylindrical member includes a cylindrical portion of which at least one end in a direction corresponding to an opening direction of the cylindrical portion is opened, and holes formed in a peripheral wall of the cylindrical portion. A fluid introduced from the fluid introducing passage flows into the cylindrical portion of the cylindrical member through the holes so as to generate a swirling flow, and flows out from the housing and the cylindrical member.

Description

technical field [0001] The present invention relates to a swirl flow generation device, a swirl flow generation method, a gas phase generation device, a fine bubble generation device, a fluid mixing device, and a fluid injection nozzle. In particular, it relates to a swirl generator and method for efficiently generating a high-speed swirl, a gas phase generator, a microbubble generator, a fluid mixing device, and a fluid injection nozzle using the swirl generator. Background technique [0002] Conventionally, techniques for swirling liquids have been applied in various technical fields. [0003] For example, there is a separation device that can easily generate a stable swirl flow, reduce the pressure loss of the mixed fluid, improve the separation efficiency of the mixed fluid, and achieve compactness. More specifically, as Figure 23 As shown, there is disclosed a separating device that has a fluid passage 321 through which the mixed fluid F flows, and by rotating the mix...

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Problems solved by technology

[0012] However, in any of the devices described in Patent Documents 1 to 4, there is a problem of low adaptability because no consideration is given to effectively generating swirl flow corresponding to each fluid when properties such as viscosity of the fluid are different.

[0013] In addition, in any of the devices described in these patent documents, the structure of the device is such that the introduced liquid can only flow out from one direction, so there is a process where the outflow direction is limited to one direction and the amount of fluid cannot be increased. quantity problem

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