A dispenser for mixing and dispensing a liquid chemical concentrate with a dilutent from a container. The dispenser includes two slideable eductors one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjustment of concentration of the chemical concentrate. The dispenser has a high degree of accuracy of the amount of dilution of the chemical concentrate as well as positive positioning of the high and low flow rate.

An ejector mixer has a convergent section and a downstream divergent section downstream of the convergent section. The downstream divergent section has a divergence half angle of 0.1-2.0 over a first span of at least 3.0 times a minimum diameter of the mixer.

A device for restricting flow of a fluid, in particular the flow of water in a sanitary fitting, includes a substantially cylindrical, hollow inlet body for the fluid, and a substantially cylindrical outlet body for the fluid, which is connected to the inlet body so as to be rotatable about a common longitudinal axis, and conducts the fluid via a cross borehole and a following cavity in the direction of the longitudinal axis. A mixing chamber includes a lateral intake borehole from which a further fluid can be supplied from outside the outlet body A clamping device fixes the set radial position of the inlet body and the outlet body relative to each other.

A fluid mixing and delivery system, e.g., for use in chemical injection of irrigation systems or wash-down stations, has a main fluid conduit with an inlet and an outlet, a bypass conduit with an inlet and an outlet, a venturi, a chemical storage tank, and a static mixer. The bypass conduit inlet connects to the main fluid conduit downstream of the main fluid conduit inlet and the bypass section outlet connects to the main fluid conduit upstream of the main fluid conduit outlet. The venturi is located in-line with the bypass conduit between the bypass conduit inlet and the bypass conduit outlet. The chemical storage tank is fluidly connected to an individual supply line, which fluidly connects to the venturi. The static mixer is located in-line with the main fluid conduit between the bypass conduit outlet and the main fluid conduit outlet.

The present invention relates to a flue ozone distributor applied in a low-temperature oxidation denitrification technology and an arrangement manner thereof. The flue ozone distributor comprises a distribution main pipe, multiple distribution branch pipes, multiple Venturi distributors and multiple delta wings. The multiple distribution branch pipes are led out from the distribution main pipe as parallel branches. The multiple Venturi distributors are arranged with an equal space on the distribution branch pipes. The delta wings are arranged on one diffusion segment side of the Venturi distributors. The flue ozone distributor is arranged in the flue. The present invention is mainly applied in a field of denitrification for flue gas of an industrial boiler/kiln by a low-temperature ozone oxidation method in industries such as pyroelectricity, steel and the like. The ozone-injecting direction is consistent with a flow direction of the flue gas. A soot deposit congestion problem does not exist. A turbulent flow behavior of the flue gas and ozone is especially strengthened. The oxidation efficiency is improved. A flue distance of a valid reaction is shortened. An application advantage in an actual project is very obvious.

A multi-stage aeration apparatus includes at least two vertically oriented aeration modules. Each aeration module defines a vertically elongated aeration chamber having a top inlet and a bottom outlet. The bottom outlet of each of the aeration modules feeds a fluid stream comprising liquid and gas into the top inlet of an underlying one of the aeration modules. Each aeration module has an aeration head connected to the top inlet, such that the fluid stream passing through the top inlet into the aeration chamber must pass through the aeration head, the aeration head aerating the liquid with the gas in the fluid stream.

Method and device for conditioning of drilling fluid comprising supplying drilling fluid at high pressure to opposite placed inline directed high pressure nozzles arranged in fluid communication with a sealed spacing for shearing the supplied drilling fluid followed by additionally mixing by high velocity streams colliding, and discharging the conditioned drilling fluid through an outlet of the sealed spacing.

A dilution nozzle assembly for attachment to a rooftop vent pipe for diluting and dispersing hazardous gases vented from the vent pipe includes an exhaust tube connected to the vent pipe and a venturi nozzle positioned in the exhaust tube for diluting and dispersing the hazardous gases vented from the vent pipe as they pass through the exhaust tube.

A dilution nozzle assembly for attachment to a rooftop vent pipe for diluting and dispersing hazardous gases vented from the vent pipe includes an exhaust tube connected to the vent pipe and a venturi nozzle positioned in the exhaust tube for diluting and dispersing the hazardous gases vented from the vent pipe as they pass through the exhaust tube.

A flammable gas diluter includes: a dilution vessel comprising an outer envelope defining a longitudinal flow passage from an inlet to an outlet; at least one air inlet for directing a flow of air into the inlet of the diluter; and a flammable gas inlet arrangement. The dilution vessel has a plurality of gas flow directing formations arranged between the flammable gas inlet arrangement and the outlet, each being at a different position along a length of the dilution vessel. At least one of the plurality of gas flow formations is an inwardly directing gas flow formation for directing gas flow away from the outer envelope and at least one of the gas flow formations is an outwardly directing gas flow formation for directing gas flow towards the outer envelope.