A hydrogen supply apparatus includes: an air path having an inlet and an outlet; a fan that is disposed in the air path and produces a flow of air from the inlet to the outlet; a first pipe having an end that forms a first supply port through which to supply hydrogen gas to the air path; a flow control device that is attached to the first pipe and adjusts a flow rate of the hydrogen gas; and a hydrogen gas sensor, disposed downstream of the fan or the end in a direction of flow of the air that detects a concentration of the hydrogen gas in the air path, where the end is disposed between the fan and the outlet or between the fan and the inlet in the air path.

This application with regard to an apparatus of mixing a compressed air foam is disclosed. The disclosed application includes a first mixing unit that receives fire water and an undiluted foam solution, and adjusts an inflow of the undiluted foam solution so that a supply amount of the undiluted foam solution is adjusted in proportion to a supply amount of the fire water, and mixes the received fire water and undiluted foam solution to produce a foam aqueous solution; and a second mixing unit that mixes a compressed gas with a foam aqueous solution produced in the first mixing unit to produce a compressed air foam.

Apparatuses and processes may be utilized for mixing used polyester into a polyester melt. In some processes an intermediate product stream is branched off from an intermediate stage in a virgin polyester production process. The intermediate product stream is then mixed with recycled polyester flakes in a dynamic mixer, where not more than 60% of a melting energy required to melt all the recycled polyester flakes is generated and/or supplied in the dynamic mixer. The mixture produced in this way is fed into a subsequent stage downstream of the intermediate stage and converted up to the desired degree of polycondensation. In this way, it is possible to physically reutilize used polyester or polyester waste.

Apparatuses and processes may be utilized for mixing used polyester into a polyester melt. In some processes an intermediate product stream is branched off from an intermediate stage in a virgin polyester production process. The intermediate product stream is then mixed with recycled polyester flakes in a dynamic mixer, where not more than 60% of a melting energy required to melt all the recycled polyester flakes is generated and/or supplied in the dynamic mixer. The mixture produced in this way is fed into a subsequent stage downstream of the intermediate stage and converted up to the desired degree of polycondensation. In this way, it is possible to physically reutilize used polyester or polyester waste.

A fluid mixing assembly includes a connecting cap, a three-way pipe and a connecting member; the connecting cap has a first connecting portion; the three-way pipe is connected to the connecting cap, and has a second connecting portion, an output portion and a cavity, wherein the second connecting portion, the output portion and the cavity communicate with each other; the connecting member is connected to the connecting cap, and has a pin-hole channel, wherein the pin-hole channel has a first end bore and a second end bore opposite to the first end bore, the first end bore communicates with the first connecting portion, and the second end bore communicates with the second connecting portion and the output portion.

A fluid mixing assembly includes a connecting cap, a three-way pipe and a connecting member; the connecting cap has a first connecting portion; the three-way pipe is connected to the connecting cap, and has a second connecting portion, an output portion and a cavity, wherein the second connecting portion, the output portion and the cavity communicate with each other; the connecting member is connected to the connecting cap, and has a pin-hole channel, wherein the pin-hole channel has a first end bore and a second end bore opposite to the first end bore, the first end bore communicates with the first connecting portion, and the second end bore communicates with the second connecting portion and the output portion.

A generating method for generating a UFB at a desired component ratio, and a manufacturing apparatus and a manufacturing method for a liquid containing a UFB at a desired component ratio are provided. To this end, a mixed solution in which multiple types of gases are dissolved at a predetermined ratio is generated, and a UFB is generated by heating the mixed solution with a heating element.

A generating method for generating a UFB at a desired component ratio, and a manufacturing apparatus and a manufacturing method for a liquid containing a UFB at a desired component ratio are provided. To this end, a mixed solution in which multiple types of gases are dissolved at a predetermined ratio is generated, and a UFB is generated by heating the mixed solution with a heating element.

A mixed gas supply device includes: a hydrogen gas generation unit that includes a hydrogen generator, the hydrogen generator generating hydrogen gas by decomposition of water and supplying the hydrogen gas; a nitrogen gas generation unit that includes a filter, the filter separating nitrogen gas from air and supplying the nitrogen gas; a gas mixing unit that mixes the supplied hydrogen gas and the supplied nitrogen gas and generates mix gas including the hydrogen gas and the nitrogen gas; and a single base on which the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit are mounted, the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit being integrated. The gas mixing unit supplies the generated mixed gas to outside.

Provided herein are systems, apparatuses, and methods for localized, on-demand diesel exhaust fluid (“DEF”) production. The systems can comprise a loading station for securing a container comprising a pre-measured quantity of urea and releasing the urea from the container. The released urea and water can then be fed into a mixing tank to produce the DEF product. The water can be pre-treated, for example, in a reverse osmosis and/or deionization process before being fed to the mixing tank. The DEF product can be immediately dispensed into a diesel vehicle or stored in a nearby intermediate storage tank. The systems and processes advantageously reduce or eliminate the need for over-the-road shipments and retail packaging of DEF.