摘要:
An aftertreatment system comprises a SCR system including at least one catalyst for decomposing constituents of an exhaust gas produced by an engine. An exhaust conduit is fluidly coupled to the SCR system and is structured to deliver the exhaust gas to the SCR system and defines an exhaust conduit opening on a sidewall thereof. A mounting plate is positioned within the opening and includes a plurality of fluid channels. At least one mounting plate opening is defined through the mounting plate downstream of an inlet of the plurality of fluid channels and in fluid communication therewith. The fluid channels are structured to receive and direct at least a pair of exhaust gas streams to a respective opening so that they arrive at the respective opening from different directions. The pair of exhaust gas streams combine with a reductant inserted into the opening before flowing into the exhaust conduit.
摘要:
A vehicle washing apparatus can include a fluid mixing circuit, a distribution conduit, and a first plurality of spray nozzles. The fluid mixing circuit can have a first inlet, a second inlet, and an outlet in fluid communication with both of the first inlet and the second inlet. The distribution conduit can extend in a u-shape with first and second vertical sections and a horizontal section extending transverse to and between the first and second vertical sections. The distribution conduit can have an interior passageway defining a flow path washing and detergent liquid and a third inlet in fluid communication with the outlet. The first plurality of spray nozzles can each be mounted on the distribution conduit and be in fluid communication with the interior passageway. Each of the first plurality of spray nozzles can be a fluidic oscillator.
摘要:
An additive system is used with a post mix dispensing machine having a liquid inlet, and a supply of an additive for mixing with the liquid from the liquid inlet. A pump, having an additive inlet and an additive outlet, is coupled to a source of power. An additive supply line is coupled to the additive inlet. The additive supply line is coupleable to a source of an additive. A liquid delivery line connects the liquid inlet to a mixture delivery outlet. An additive delivery line connects the additive outlet to a mixing point along the liquid delivery line. An additive flow adjuster is used to control the flow of additive from the pump. Additive flowing through the additive delivery line mixes with liquid flowing through the liquid delivery line for passage to the mixture delivery outlet.
摘要:
An apparatus and method for maximizing the dissolved concentration of ozone in a liquid. The apparatus includes a dissolution tank having a pressure vessel configured to contain a treated fluid and at least one gas in a head space above the treated fluid, an inlet configured to permit passage of an untreated fluid into the head space, and an outlet configured to permit passage of the treated fluid out of the vessel; a gas supply system configured to transport the at least one gas to the head space; a fluid supply system configured to provide the untreated fluid to the tank; a bleed-off system for removing gas from the head space so as to maximize the dissolved concentration of the ozone gas in the liquid; and a discharge device configured to pass the treated fluid from the tank into the target liquid.
摘要:
A reducing agent aqueous solution mixing device includes an exhaust pipe, an injector, a mixing pipe and an inner pipe. The exhaust pipe includes an elbow part having a curved portion, and a linear part disposed downstream of the elbow part. The injector is disposed outside the curved portion and injects the reducing agent aqueous solution towards the linear part. The mixing pipe is disposed inside the elbow part to surround the reducing agent aqueous solution injected from the injector. The mixing pipe includes a plurality of openings on its outer peripheral surface. The inner pipe is disposed downstream of the mixing pipe and spaced apart from an outlet portion of the mixing pipe and from an inner wall of the linear part to allow the exhaust gas to flow through the inside of the inner pipe and along the outer periphery of the inner pipe.
摘要:
It is an object to provide a method for killing aquatic organisms in liquid by which aquatic organisms in liquid can be killed at low cost, and the object is attained by a method including a first step of generating microbubbles in a range of 4 to 100 μm from bubbles containing ozone discharged into liquid in a pipe, a second step of forcibly crushing the microbubbles in the pipe generated at the first step to generate OH radicals as a result of crushing of the microbubbles themselves due to the forcible crushing, and a third step of generating OH radicals as a result of dissolution and decomposition of the ozone contained in the microbubbles in the liquid due to the forcible crushing of the microbubbles, wherein the OH radicals generated at the second and third steps, OH radicals generated as a result of self-crushing of the microbubbles themselves in the liquid in the pipe, and OH radicals generated as a result of dissolution and decomposition of the ozone contained in the microbubbles in the liquid due to the self-crushing are brought into contact with aquatic organisms in the liquid in the pipe.
摘要:
The invention has to do with the re-entrainment of gases separated from a water/gas mixture that rise to the top of a conductor pipe. A water jet created by a nozzle of the present invention plunges though the surface of the water carrying with it the gas that has accumulated on the surface on the water between the water and the top of the conduit. Depending on the gas to liquid ratio and the velocity of the mainline water flow, the nozzles penetrate the conductor pipe adjacent to a point where the gas has accumulated and no longer is entrained and mixed with the water. The ratio of plunging water to main water flow is determined based on the upstream injected gas to liquid ratio for the treatment process such as oxygen for aerobic conditions or ozone for oxidation.
摘要:
An apparatus and method for maximizing the dissolved concentration of ozone in a liquid. The apparatus includes a dissolution tank having a pressure vessel configured to contain a treated fluid and at least one gas in a head space above the treated fluid, an inlet configured to permit passage of an untreated fluid into the head space, and an outlet configured to permit passage of the treated fluid out of the vessel; a gas supply system configured to transport the at least one gas to the head space; a fluid supply system configured to provide the untreated fluid tank; a bleed-off system for removing gas from the head space so as to maximize the dissolved concentration of the ozone gas in the liquid; and a discharge device configured to pass the treated fluid from the tank into the target liquid.
摘要:
Apparatus and methods are disclosed for facilitating dissolution of one or more gases into a liquid. Preferred gases for use with the apparatus are oxygen, air, and ozone. An apparatus of the present invention comprises a dissolution tank that includes a pressure vessel, at least one liquid spray nozzle, and a fluid outlet. The apparatus also comprises a gas source, means for passing fluid into the pressure vessel, and a discharge device connected to the fluid outlet, which discharge device is provided with at least one orifice. Preferred applications include wastewater treatment, treatment of drinking water, fermentation, and bioremediation.
摘要:
The present invention is directed to a fluid flow control assembly for regulating fluid flow, and may find particular application in additive dispenser systems. Typically a baffle arrangement (210) comprises a plurality of baffle elements (202) within a chamber (208). The arrangement forms an alternating sequence of restrictions and cavities for fluid flowing from an inlet (205) to an outlet (201) and tends to restrict fluid flow in an alternative manner to merely providing a fine diameter aperture. The fluid flow control assembly was developed for applications where foreign particles or air bubbles may block fine diameter apertures, such as low pressure additive dispenser systems where low relatively stable flow rates are important to their operation.