A microbubble generation device comprises a liquid inlet (101), a gas inlet (104), a bubble flow outlet (103), and a gas-liquid mixing chamber (102). An air-permeable hole having an angle structure is provided at a gas-liquid interface of the gas-liquid mixing chamber (102), and a pointed end of the angle structure of the air-permeable hole points to a liquid flow direction. The bubbles generated by the device are extremely small in diameter, prolonging a duration the bubbles stay in the liquid phase, and enhancing gas-liquid mass transfer efficiency.

Disclosed herein are techniques and methods for dispersing a volume of gas in a beverage contained in an unpressurized container.

The present disclosure provides a microbubble generation device and equipment, wherein the microbubble generation device comprises: a microbubble generation mechanism having a housing and a core tube provided to pass therethrough, wherein at least one filter plate is provided on a peripheral sidewall of the housing, and an annular space is formed between the housing and the core tube; a flow rate control mechanism provided in the annular space, and connected to the core tube that is communicated with the annular space through the flow rate control mechanism, wherein a blocking ball is provided in the flow rate control mechanism and capable of blocking the flow rate control mechanism in a state that a pressure of gas injected into the flow rate control mechanism decreases; and a pressure balancing mechanism provided outside the housing and having a pressure balancing tube and a fluid check valve connected thereto. The present disclosure can withstand a huge pressure difference during a movement within a wellbore from a ground surface to an oil reservoir and take preventive measures for the failure. The gas injection process of the present disclosure not only meets the microbubble volume requirement, but also provides safe control measures.

A dual-action water aerator includes structure that generates fine, fizz-type bubbles and structure that generates larger, more roiling bubbles that cause circulation within a body of water in which the aerator is submerged. The disclosed embodiments include a ring-shaped hub with a central aperture, with a central tube extending axially from the aperture. A number of fine-bubble-producing members extend outwardly from the hub and may be attached to the hub using a twist-lock connection designed to facilitate rapid assembly and deployment of the aerator. An internal air chase extends circumferentially around the aperture. A portion of air supplied to the air chase flows into the fine-bubble-producing members and fizzes out through the members, and another portion of air that is supplied to the air chase flows into the central tube and bubbles up out of the tube in a roiling manner to cause circulation in the body of water.

An aerator assembly for wastewater treatment includes a draft tube and an air supply assembly. The draft tube includes a sidewall and presents open top and bottom tube ends. The air supply assembly includes an air supply conduit and a diffuser body. The diffuser body has an inlet aperture and a bubble generator connected to the inlet. The inlet aperture is connected to the air supply conduit such that the bubble generator receives air from a source of air, to which the air supply conduit is connected. The bubble generator has a plurality of air openings for generating fine air bubbles. The diffuser body is sealingly engaged to the sidewall adjacent the bottom tube end so as restrict upward flow of wastewater through the draft tube past the diffuser body.

An apparatus for producing nano-bubbles in a moving liquid carrier includes a conduit through which a liquid carrier can flow, a gas diffuser disposed on an inner surface of the conduit, and a funnel comprising: (i) a first open end having a first cross-sectional area that receives a moving liquid carrier; (ii) a second open end opposite the first open end defining a second cross-sectional area smaller than the first cross-sectional area and fluidly coupled to the opening of the conduit; and (iii) a wall extending from the first open end to the second open end. The funnel is configured to create turbulent flow above the turbulent threshold in the absence of external energy that allows the liquid carrier to shear gas from the outer surface of the diffuser, thereby forming nano-bubbles in the liquid carrier.

The present invention relates to a method of manufacturing an integrated structure using microbubbles, and an integrated structure manufactured by the method.

A micro bubble generating device disposed at one end of a liquid supply device including a water inlet unit, a water outlet unit, an air inlet groove, and a first sleeve. The water inlet unit is penetrated by first passages, and one side being penetrated is provided with a first connecting surface; the water outlet unit is penetrated by second passages, and one side being penetrated is provided with a second connecting surface. The second connecting surface faces the first connecting surface, and they partially abut against each other to form the air inlet groove. The air inlet groove comprises a third passage and a first accommodating chamber. The first accommodating chamber has a first spacing, the first spacing is different from a second spacing of the third passage. The first sleeve is disposed at another side of the water outlet unit.

The disclosure provides a gas-liquid dissolving apparatus, comprising: a sealed tank, a gas jet tube and a plurality of membrane plates; the sealed tank being provided with a liquid supply joint at top, and a gas inlet joint and an output joint at bottom; the gas jet tube being located inside the sealed tank and connected to the gas inlet joint; the gas jet tube having a plurality of gas jet holes distributed on tube wall; the plurality of membrane plates being stacked around the periphery of the gas jet tube and fixed; each membrane plate being ring-shaped, and being structured with an inner ring wall, a mixing chamber and an outer ring wall sequentially from the center; the mixing chamber having an opening facing downward, and the inner ring wall being thicker than the outer ring wall, with a gap existing between the two adjacent stacked outer ring walls.

A device for generating gas bubbles in a liquid in a container includes a rotatable gas-permeable hollow shaft arranged in a container, gassing discs arranged on the hollow shaft and spacers arranged between the gassing discs, gassing discs and spacers being arranged alternately on the hollow shaft in gas-tight contact with one another, a feed line for a compressed gas into the interior of the shaft, having a centered opening (O) for receiving said shaft and at least two chambers, said chambers being equally spaced around said centered opening, where said centered opening and said chambers at least partially overlap, where the centered opening and the chambers are in communication with one another at least in the overlap region, so that the compressed gas can flow from shaft into in each case a chamber of the spacer and enter the gassing discs from the chamber of the spacer.