3results about How to "Increase pressure difference" patented technology

The invention discloses a molecular film type automotive nitrogen and oxygen separation device which comprises a turbocharger, a nitrogen and oxygen separator, a gas inlet valve, a gas outlet valve, a negative pressure pump and an electric control throttling valve. The turbocharger is driven by a turbine in an automobile turbocharger, so that the air is compressed to be conveyed to two paths of the nitrogen and oxygen separation device, the nitrogen and oxygen separation device can separate oxygen from the air, the air with high oxygen content is output, and the air is supplied to an engine for use through the gas outlet valve. The two paths of the nitrogen and oxygen separation device work alternately, when the temperature of the two paths of the nitrogen and oxygen separation device is too high to influence oxygen production efficiency, a main air inlet pipeline is opened to provide air normally by controlling the opening degree of the electric control throttling valve, and thus the phenomena of gas circuit plugging and engine stalling are avoided. According to the automotive nitrogen and oxygen separation device, the two branch paths work alternately, high concentration oxygen can be supplied to the engine continuously so that fuel can burn and act, and the burning utilization rate of the fuel is improved.

The application relates to a double-channel rotating detonation combustion chamber structure with an inlet total pressure adjusting function, which comprises a Tesla valve arranged at the inlet of the rotating detonation combustion chamber, the Tesla valve comprises a shell and a flow channel, the inlet end and the outlet end of the flow channel are respectively provided with pressure adjusting structures, the radial outer side of the flow channel is provided with an injection channel, the injection channel comprises an air outlet channel and a pressurizing channel communicated with the air outlet channel, and the side, away from the pressurizing channel, of the air outlet channel is provided with an opening and closing assembly for opening or closing the air outlet channel, the opening and closing assembly comprises a supporting plate, a plurality of opening and closing doors and a self-locking driving part, and the self-locking driving part is used for synchronously driving the plurality of opening and closing doors to be close to or away from the outlet side of the air outlet channel. The application has the effects that when the rotating detonation combustion chamber is in an air thin belt, the air intake of the air inlet channel is automatically enhanced, the rotating detonation combustion chamber preferentially intakes the air in the air inlet channel, the air supply of the combustion chamber is ensured, and the adaptability and stability of the combustion chamber in different environments are improved.

The utility model relates to cultivation wastewater treatment, and discloses a filtering device for cultivation wastewater treatment, which comprises a filtering bin, a composite filtering layer is arranged in the filtering bin, and the composite filtering layer comprises a plurality of common filtering membrane layers and carbon nano tube filtering layer groups arranged between the adjacent common filtering membrane layers. Each carbon nanotube filter layer group comprises a plurality of carbon nanotube filter layers; the carbon nano tube filter layer comprises a base layer, two protective layers located on the upper side and the lower side of the base layer respectively, and a carbon nano tube composite material layer located between the base layer and the two protective layers, and is obtained through hot pressing and compounding. A positive pressure air inlet device and an air pressure sensor are also arranged at the top of the filtering bin. According to the filtering device, a common filtering membrane is combined with a carbon nano tube filtering layer, residual antibiotics and pathogens in aquaculture wastewater are removed by utilizing excellent adsorption performance and bactericidal activity of carbon nano tubes, and the influence of aquaculture wastewater discharge on human and environment is reduced; the device can also perform positive pressure filtration, so that the filtration efficiency is ensured.