Embodiments described generally relate to systems comprising a humidifier (e.g., a bubble column humidifier) and a heating device (e.g. a heat exchanger), and associated methods. In certain embodiments, the heating device heats a first liquid stream comprising a condensable fluid in liquid phase (e.g., water) and a dissolved salt (e.g., NaCl) to a relatively low temperature (e.g., about 90° C. or less) prior to the first liquid stream entering the humidifier through a main humidifier liquid inlet. In some cases, the system comprising the humidifier and the heating device requires only low-grade heat to operate, which may be advantageous due to the low cost and high availability of such heat.

A portable drinking vessel assembly removably engages an open end of a bottle neck to enable drinking directly from a bottle while aerating the liquid. The assembly comprises a vessel defined by a side wall, a bottom portion forming a bottom opening, and a top portion forming a top opening. A tapered conduit defined by a wide end and a narrow end integrally joins with the vessel through the wide end, and detachably attaches to the bottle through the narrow end. The liquid is aerated while flowing from narrow end, to wide end, and finally into the vessel. A silicone sleeve having ribs encapsulates a longitudinal portion of the conduit. The ribs engage an inner surface of the bottle neck to create a self-tapping rotatable action in the bottle neck, and a seal against the inner surface of bottle neck. The vessel joins a stand to remain upright.

The present invention relates to a reaction device with air-lift type internal circulation which includes: a vertical cylindrical volume (1), more than one draft tube vertical element (2) positioned within the cylindrical volume (1) in such a manner as to form an gap with the walls of said volume, more than one gas distributor (3), each of which is positioned on the bottom of said device; wherein: each vertical internal element (2) has an internal diameter which increases along the vertical axis of said element, and the ratio between the total height of the reaction device and the internal diameter of the reaction device is less than 1.

The present invention is a novel bubble generator that can be used in many different industrial applications. The design of the bubble generator of the invention allows its user to selectively generate gas bubbles in a liquid having a wide range of diameters in the range from microns to millimeters simply by changing the ratio of the flow rate of the gas to that of the liquid. The bubbles are generated at low liquid and gas supply pressure values. The bubble generator of the invention is able to create an unstable liquid flow regime having large amplitudes and frequencies for liquid containing bubbles without the use of moving mechanical parts and drives.

A scent delivery assembly that includes a main body portion that defines an interior and includes at least one intake opening and at least one outlet opening, an airflow path that is defined between the intake opening and the outlet opening, a fan positioned along the airflow path, and at least a first cartridge positioned along the airflow path. The first cartridge includes a first cover that is movable between a closed position and an open position and a scent assembly. The scent assembly is not in flow communication with the airflow path when the first cover is in the closed position, and the scent assembly is in flow communication with the airflow path when the first cover is in the open position.

A drink dispenser with detachable fizz infuser including drink bottle, characterized by and comprising a base, a main body, a main body support, a top cap, an exiting gas driving device, a gas exiting device, a gas transfer device, a gas inlet device, and a CO.sub.2 cylinder. The compartment for the CO.sub.2 cylinder in the said main body has an inlet and an outlet as well as a side cap that is connected to the main body and pin-jointed with the inlet and the outlet. With this structure, the gas exiting device can be activated simply by pressing the exiting gas driving device. Gas flows from the CO.sub.2 cylinder, enters the gas transfer device and the gas inlet device, and ends up in the drink bottle. The operation is simple and easy. The configuration of the safety device eliminates potential safety hazards and ensures safety by preventing the drink bottles from being over-pressurized. Provision of the side cap facilitates convenient replacement of the CO.sub.2 cylinder.

A foam material generator has a housing; transmission device on the housing; housing cavity within the housing; pressurizing stirring foaming wheel within the cavity; transmission device transmission shaft connected to the wheel; pressurizing stirrers on the wheel; pressurizing stirrer airflow-facing surface forms an inclined angle with a cross sectional surface in a wheel rotational axis direction; housing cavity inlet is on a cavity end, and a housing cavity outlet is on another end; encircling abrasive disc is on a cavity inner wall adjacent to the outlet; encircling abrasive disc inlet is at a encircling disc middle portion; vortex current abrasive foaming disc is on a wheel end adjacent to the encircling disc; vortex current abrasive foaming disc surface conforms to be in close proximity with an encircling disc surface; and vortex current abrasive foaming cavity is between the surfaces of the vortex current abrasive foam disc and encircling disc.

Disclosed herein is a gas-liquid mixing and distributing device. The gas-liquid mixing and distributing device includes a mixing head including a chamber, a plurality of gas spray nozzles, and a plurality of liquid spray nozzles; and a liquid supplying part connected to the mixing head and supplying a liquid to the mixing head, wherein the plurality of gas spray nozzles and the plurality of liquid spray nozzles included in the mixing head are uniformly mixed and distributed so that the liquid and gas sprayed from the mixing head are uniformly mixed with each other.

A fluid mixing and distribution device for a catalytic downflow reactor, said device comprising a collection zone (A), a mixing zone (B) comprising a mixing chamber (15) for fluids and an exchange chamber (16) for fluids, a distribution zone (C), said exchange chamber (16) comprising at least one upper lateral cross-section of flow (17a) and at least one lower lateral cross-section of flow (17b) through which fluids can pass from said exchange chamber (16) to said distribution zone (C), characterized in that said exchange chamber (16) comprises a fluid deflection means (24) fixed to said exchange chamber (16) and located downstream of the upper lateral cross-section of flow (17a), said fluid deflection means (24) forming with said exchange chamber (16) a space (26) in the shape of a pan.

A water dispersing system (WDS) that allows a selectable quantity of water to be dispersed into an environment. The WDS utilizes a fan and a water supply assembly. The fan has a frame inside of which are two rotating blades, and preferably a stand. The water supply assembly includes a reservoir, a water tube, and a water dispersing head. Water is gravity fed from the reservoir, through the water tube and out of the head. Water from the head is directed into the first fan's rotating blades. Once the water hits the blades, the water is re-directed back out through a front grill on the fan. The second fan blades project air outward. The amount of water that comes from the WDS can be selectably chosen, from a light mist to a heavier spray, and the temperature of the water can be lowered by placing ice into the reservoir with the water. An excess water basin catches any water that drips downward from the blades.