A nozzle assembly includes a mixing channel and an aerator. The mixing channel has upstream and downstream ends defining a flow direction through the mixing channel and includes a housing wall and a mixer. The housing wall defines a flow passage and includes an inlet portion and a tip orifice. The inlet portion disposed at the upstream end and configured to receive a first material and a second material. The tip orifice is disposed at the downstream end and is configured to emit a plural component material from the mixing channel. The mixer is disposed within the mixing channel and is configured to mix the first material and the second material into the plural component material. The aerator is configured to flow nucleation air to a location downstream of an upstream end of the mixer and into a flow of the plural component material.

A nozzle assembly includes a mixing channel and an aerator. The mixing channel has upstream and downstream ends defining a flow direction through the mixing channel and includes a housing wall and a mixer. The housing wall defines a flow passage and includes an inlet portion and a tip orifice. The inlet portion disposed at the upstream end and configured to receive a first material and a second material. The tip orifice is disposed at the downstream end and is configured to emit a plural component material from the mixing channel. The mixer is disposed within the mixing channel and is configured to mix the first material and the second material into the plural component material. The aerator is configured to flow nucleation air to a location downstream of an upstream end of the mixer and into a flow of the plural component material.

The invention relates to foam production equipment comprising:a first module (A) comprising a principal outlet and delivering at said principal outlet a mixture comprising a principal liquid and at least one surfactant,a second module (B) coupled to the principal outlet of the first module (A) and producing a foam which comprises at least the principal liquid, the at least one surfactant and at least one principal active product, from the mixture delivered by the principal outlet of the first module (A), the mixture comprising the at least one principal active product or the second module (B) comprising, in addition, means configured such that the foam produced by the second module (B) comprises the at least one principal active product, characterized in that said at least one principal active product is chosen from dyes, fluorescent products, chemical and/or biological labels, irritant products, gases, products which destroy the muscle and/or thinking capacities of a living being and radar reflectors. The invention also relates to a foam which can be produced by such equipment and which advantageously has an expansion coefficient greater than 10.

The present invention includes: a nozzle main body (1), which includes a tubular body (8) and a closing flat plate (9) that closes one tube end (8A) of the tubular body (8), and in which an inflow space () into which a liquid flows is formed in the tubular body (8); a liquid jetting hole (2) penetrating through the closing flat plate (9) and communicating to the inflow space (); and a liquid guide (23) arranged in the liquid jetting hole (2) from the inflow space (). The liquid guide (23) is mounted in the liquid jetting hole (2) from a conical upper surface (23A) so as to form a liquid flow path () between the uneven surface of the conical side surface (23C) and a conical inner peripheral surface (2a) of the liquid jetting hole (2).

A nozzle assembly includes a mixing channel and an aerator. The mixing channel has upstream and downstream ends defining a flow direction through the mixing channel and includes a housing wall and a mixer. The housing wall defines a flow passage and includes an inlet portion and a tip orifice. The inlet portion disposed at the upstream end and configured to receive a first material and a second material. The tip orifice is disposed at the downstream end and is configured to emit a plural component material from the mixing channel. The mixer is disposed within the mixing channel and is configured to mix the first material and the second material into the plural component material. The aerator is configured to flow nucleation air to a location downstream of an upstream end of the mixer and into a flow of the plural component material.

A nozzle assembly includes a mixing channel and an aerator. The mixing channel has upstream and downstream ends defining a flow direction through the mixing channel and includes a housing wall and a mixer. The housing wall defines a flow passage and includes an inlet portion and a tip orifice. The inlet portion disposed at the upstream end and configured to receive a first material and a second material. The tip orifice is disposed at the downstream end and is configured to emit a plural component material from the mixing channel. The mixer is disposed within the mixing channel and is configured to mix the first material and the second material into the plural component material. The aerator is configured to flow nucleation air to a location downstream of an upstream end of the mixer and into a flow of the plural component material.

This invention is a portable fountain which pumps the hypolimnion to spray above the surface in a stratified body of water fountain resulting in aeration and heat transfer by accessing sub-thermocline depths. There are prior art fountains which circulates a stratified body of water, however these are permanent installations often connected to a commercial power grid. Other, portable-type fountains are not designed to access sub-thermocline depths and do not adequately circulate the hypolimnion. Thus a need exists for a portable fountain which circulates and aerates a stratified body of water for use in areas which lack a permanent fountain system. Applications of this invention involve aeration, temperature fluctuation to cool the surface during summer, and temperature fluctuation to warm the surface during winter. Benefits of this device include comfort for swimmers in hot weather, prevention of ice formation in the winter, and overall environmental improvement due to aeration.

This invention is a portable fountain which pumps the hypolimnion to spray above the surface in a stratified body of water fountain resulting in aeration and heat transfer by accessing sub-thermocline depths. There are prior art fountains which circulates a stratified body of water, however these are permanent installations often connected to a commercial power grid. Other, portable-type fountains are not designed to access sub-thermocline depths and do not adequately circulate the hypolimnion. Thus a need exists for a portable fountain which circulates and aerates a stratified body of water for use in areas which lack a permanent fountain system. Applications of this invention involve aeration, temperature fluctuation to cool the surface during summer, and temperature fluctuation to warm the surface during winter. Benefits of this device include comfort for swimmers in hot weather, prevention of ice formation in the winter, and overall environmental improvement due to aeration.

A mixing system and a mixing method are provided. The mixing system includes a main pump and at least one mixing apparatus. Each mixing apparatus includes a main pipeline, a premixing device and a shearing-mixing device. The main pipeline has a liquid inlet end communicated with the main pump and is configured to convey main liquid, and the main pipeline includes a first liquid outlet end and a second liquid outlet end. The premixing device has an input end communicated with the first liquid outlet end and is configured to premix the main liquid with powder to obtain premixed liquid. The shearing-mixing device is communicated with an output end of the premixing device to obtain the premixed liquid, and is provided with a first shearing-mixing liquid inlet communicated with the second liquid outlet end to obtain the main liquid, so that mixed liquid is obtained.

A mixing system and a mixing method are provided. The mixing system includes a main pump and at least one mixing apparatus. Each mixing apparatus includes a main pipeline, a premixing device and a shearing-mixing device. The main pipeline has a liquid inlet end communicated with the main pump and is configured to convey main liquid, and the main pipeline includes a first liquid outlet end and a second liquid outlet end. The premixing device has an input end communicated with the first liquid outlet end and is configured to premix the main liquid with powder to obtain premixed liquid. The shearing-mixing device is communicated with an output end of the premixing device to obtain the premixed liquid, and is provided with a first shearing-mixing liquid inlet communicated with the second liquid outlet end to obtain the main liquid, so that mixed liquid is obtained.