11 results about "Air sparging" patented technology

To achieve a rainfall test for reproducing rain with weak rainfall intensity.SOLUTION: The rainfall testing device 10 includes a nozzle 20, a water supply unit 22 for supplying water to the nozzle 20, and an air supply unit 24 for supplying air to the nozzle 20. The nozzle 20 has an injection part 29 which repeats bending deformation by reaction force by injection of water and air from the water supply part 22 and the air supply part 24.SELECTED DRAWING: Figure 1

A system for biodrying biomass may include an air sparge system configured to supply air to biomass material. In one example, the system includes a slab, and the air sparge system is associated with the slab. The slab may define multiple bays to receive biomass material, and the air sparge system may supply air to the bays. The air sparge system may include one or more sparge pipes movable to accommodate emptying the bays of the biomass material. In another example, the system includes an enclosure defining a volume to receive biomass material, and the air sparge system includes one or more sparge pipes located in the volume and configured to supply air to a bottom of the enclosure. The sparge pipes may be configured to limit an intrusion of the biomass material.

A system includes a compressor for generating a first portion and a second portion of compressed air, and a pump submerged in water pool that is configured to pump a source of water. The system includes an air sparger operably coupled to the compressor that is configured to inject a portion of compressed air into the water pool. The system includes a sprayer arranged in the air section that is operably coupled to both the pump and the compressor, and is configured to collectively spray a combination of the source of water and the second portion of compressed air. The system includes a vacuum pump operably coupled to the air section with a vent line. The vacuum pump directs the contaminants out of the air section. The contaminants comprise one of per-and polyfluoroalkyl substances, volatile organic compounds, petroleum hydrocarbons, chlorinated compounds, and 1,4-Dioxane.

The invention discloses a high-pressure air injection hardened soil splitting and filling improvement technology. Soil water permeability improvement is achieved through minimally invasive physical disturbance. Firstly, vertical holes are drilled in the hardened soil surface, a special spraying device is inserted after water injection, and the holes are sealed; high-pressure air is used for directionally impacting the soil layer from the nozzles, and radial net-shaped cracks and cavity channels extending to the earth surface from the hole bottoms are formed. Then granular materials such as gravels are continuously filled into the cavity, high-pressure air is synchronously and circularly sprayed and matched with ground surface water injection, the materials are fully permeated and filled by means of the instantaneous liquefaction effect, and a three-dimensional water guide network is constructed. After multi-hole-site collaborative operation, the underground water guide channels are communicated with one another to form a global drainage system. According to the technology, through the synergistic effect of air splitting and material filling, the limitation of a traditional ploughing technology is broken through, damage of mechanical operation to earth surface vegetation and root systems is avoided, and no chemical pollution exists in the construction process. The method is particularly suitable for sensitive areas such as ancient tree protection areas, facility agriculture parks and historical gardens, soil structure improvement can be achieved while the earth surface integrity is maintained, the problem of ventilation and water permeation obstacles caused by hardening is solved, and an innovative scheme is provided for eco-friendly soil remediation.

The invention discloses a device and method for reducing the springback rate of tunnel sprayed concrete and working face dust. The device comprises a spraying trolley, a spraying and collecting mechanism is installed at the end of a mechanical arm of the spraying trolley, and an accelerator spraying mechanism, an air spraying mechanism and a dust collector are arranged on the spraying trolley; the method comprises the steps that firstly, a spraying trolley is started to spray concrete to a tunnel working face; 2, primary filtering of dust on a working face and collection of springback materials; 3, secondary filtration and purification of dust on the working face; 4, re-injection of the rebound material; and 5, circulating the step 2 to the step 4 for multiple times until the construction is finished. The collecting cover with the top covered with the elastic filter screen is adopted, suction, collection and primary filtration of dust-containing gas can be achieved, collection of fallen concrete springback materials can be synchronously achieved, and secondary injection of the collected springback materials is completed through instantaneous powerful airflow generated by high-pressure air and the high-elasticity recovery rate of the elastic filter screen.

The double-nozzle type dispersion burner comprises a gas pipe, a flue gas spray pipe and an air spray pipe, the gas pipe penetrates through the flue gas cavity and extends into the flue gas throat pipe, the flue gas spray pipe penetrates through the air cavity and extends into the air throat pipe, and the central axis of the air discharge channel, the central axis of the flue gas discharge channel, the central axis of the flue gas throat pipe and the central axis of the gas pipe are collinear. Smoke of 10 kPaG or above enters the smoke cavity, fuel gas of 10 kPaG to 20 kPaG enters the fuel gas pipe, air of 800 DEG C or above enters the air cavity, the air jet flow core comprises smoke jet flow cores, the smoke jet flow cores comprise fuel gas jet flow cores, initial sections of smoke jet flow and air jet flow are equal, and smoke standard state flow is 1-2.33 times of fuel gas standard state flow. The method can be applied to waste aluminum ingot melting and casting, aluminum alloy refining devices and the like in the nonferrous metallurgy field. The method can quickly melt and cast aluminum materials, combustion is complete, the overall furnace temperature level is high, furnace temperature distribution is uniform, and NOx emission is smaller than or equal to 50 mg / m < 3 >.

The invention discloses a multiphase flow particle jet nozzle structure, and belongs to the technical field of multiphase flow jet structures. The device comprises an outer pipe, an inner pipe, a shunting box, an isolating ring, an injection box and an air injection pipe array, the outer pipe and the inner pipe are coaxially connected, the inner pipe is arranged in the shunting box, the outer pipe is arranged outside the shunting box, at least one air injection inlet pipe is arranged on the lower portion of the shunting box, and the shunting box is connected with the injection box through the isolating ring; the injection box is provided with an inner pipe injection hole and a plurality of air injection pipe outlets, the inner pipe injection hole is connected with the inner pipe, the isolation ring is provided with a plurality of air injection pipe inlets and an air injection pipe array, the air injection pipe array comprises a plurality of air injection pipes, and the two ends of each air injection pipe are connected with the corresponding air injection pipe inlet and the corresponding air injection pipe outlet respectively. The problem that the quality of a wind tunnel test flow field is affected due to the accumulation phenomenon of solid particles such as ice crystals and sand dust in the jetting process at present is solved, and particle aggregation caused by advanced mixing in the nozzle is avoided.

A device may include a compressor for generating portions of compressed air, and a submersible pump submerged in the water pool. A device may include an air sparger operably coupled to the compressor for injecting a portion of the compressed air into the water pool. A device may include a sprayer submerged in the water pool, the sprayer being operably coupled to both the submersible pump and the compressor through a venturi connection, the sprayer being configured to collectively spray into the water pool a combination of water from the submersible pump and another portion of compressed air. A device may include a vacuum pump configured to charge an air section with a vacuum. The sprayer and the air sparger are configured to generate foam having contaminants, the foam being configured to release contaminants into the air section. The vacuum pump directs the contaminants out of the air section.

To satisfactorily clean the outer surface of an on-vehicle sensor using air jets while considering the influence of travel wind.SOLUTION: A sensor cleaning device which cleans an outer surface of an on-vehicle sensor, Includes: the on-vehicle sensor; a plurality of air nozzles facing the outer surface from multiple directions; a pump; a plurality of actuators that adjust a flow amount of air; and an electronic control unit. In air cleaning control, when dirt on the outer surface is detected by the on-vehicle sensor, the electronic control unit controls the pump and the plurality of actuators so that the first air jet of jetting air from all of the plurality of air nozzles is executed. Meanwhile, when residual dirt on the outer surface is detected by the on-vehicle sensor after the first air jet, the electronic control unit determines the flow amount of the air for the second air jet on the basis of distribution information of the residual dirt acquired by the on-vehicle sensor, and controls the pump and the plurality of actuators so that the second air jet is executed.SELECTED DRAWING: Figure 2

The group of inventions relates to devices for obtaining fresh water from atmospheric air with hydro-enrichment of the air flow and a method implemented using said devices, and can be used for agriculture, drinking water supply, and also for industrial needs. As a result of using the claimed invention, it becomes possible to increase the efficiency of water extraction from atmospheric air due to hydro-enrichment of the air flow and continuous operation of the device, as well as to increase the energy efficiency of the device through the use of passive air injectors, a solar module, an anti-gravity heat pipe and a cylindrical thermal energy accumulator with a solar radiation concentrator. The device for extraction of water from air with hydro-enrichment of the air flow comprises an adsorption chamber and a condensation chamber, which are connected to each other using a mixing chamber, and a water collector connected to the condensation chamber. The adsorption chamber is equipped with a main channel and a discharge channel located inside the adsorption chamber and intended to pass the air flow through an adsorption rotor, which is made of an aluminum frame filled with a sorbent capable of absorbing water from the air, the adsorption rotor is installed in the center of the adsorption chamber and is connected to an electric motor. The main channel is formed by the inner walls of the adsorption chamber and the outer walls of the discharge channel, which is a closed air duct that passes through ¼ of the area of the adsorption rotor, and the main channel passes through ¾ of the area of the adsorption rotor. The adsorption chamber is equipped with a first inlet opening for drawing in outside air into the main channel of the adsorption chamber, installed on the sidewall of the adsorption chamber, and a second inlet opening for drawing in outside air into the discharge channel of the adsorption chamber, installed on the side of the adsorption chamber parallel to the first inlet opening. The adsorption chamber is equipped with a first discharge opening for removing dried air and a first exhaust fan for drawing in outside air passing through the adsorption rotor through the main channel, while the first discharge opening is located opposite the first inlet opening in the main channel of the adsorption chamber. The adsorption chamber is equipped with a set of environmental metering devices installed outside the adsorption chamber, and a heating device designed to heat the outside air and installed in front of the adsorption rotor in the discharge channel. The mixing chamber is equipped with an automatic shutter for adjusting the intake of outside air into the mixing chamber, which is opened by an electronic control system, and the mixing chamber is connected to the adsorption chamber via the discharge channel. The condensation chamber is equipped with a second discharge opening located on the sidewall of the condensation chamber to remove the dried air from the condensation chamber, and a second exhaust fan installed in the condensation chamber in front of the second discharge opening, designed to draw in air passing through the discharge channel, the mixing chamber and the condensation chamber; a heat exchange device which is a refrigeration circuit for water condensation, consisting of an evaporator, condenser, compressor and capillary tube; the water collector is installed under the condensation chamber. The discharge channel with the second inlet opening, the mixing chamber, and the second discharge opening with the exhaust fan are located on the same level.

The application discloses a device and method for reducing rebound rate of tunnel shotcrete and dust on working surface, which comprises a spraying trolley, a spraying collection mechanism is installed at the end of the mechanical arm of the spraying trolley, a quick-setting agent spraying mechanism, an air spraying mechanism and a dust collector are arranged on the spraying trolley; the method comprises the following steps: 1, starting the spraying trolley to spray concrete to the working surface of the tunnel; 2, primary filtration of the dust on the working surface and collection of rebounded materials; 3, secondary filtration and purification of the dust on the working surface; 4, re-spraying of the rebounded materials; 5, repeatedly performing steps 2-4 until the construction is completed. The collection cover with the elastic filter screen on the top can realize suction, collection and primary filtration of the dust-containing gas, and can also realize synchronous collection of the falling concrete rebounded materials, and the high-pressure air generated instantaneous strong airflow and the high elasticity recovery rate of the elastic filter screen are utilized to complete the re-spraying of the collected rebounded materials.