6results about How to "Good blendability" patented technology

The application discloses a sea-air amphibious fuel injection system and method based on a methanol-activated aluminum-water system fuel, the fuel injection system comprising a needle injection device, the needle injection device having coaxially arranged inner and outer flow channels and a flow regulating unit; the inner wall of the inner flow channel and the inner wall of the outer flow channel have a plurality of inner flow channel bosses and a plurality of outer flow channel bosses arranged alternately along the axial direction, which are used for generating local vortex when the fuel flows; the method comprises: a magnetic stirring device stirring the fuel in a high-concentration Al / MeOH fuel storage tank; a mixing device proportionally mixing the fuel output by the high-concentration Al / MeOH fuel storage tank and a methanol MeOH fuel storage tank; a fuel injection system receiving and injecting the mixed methanol-activated aluminum fuel and introducing seawater or air as an oxidant; the application can enhance mixing through vortex, adapt to seawater / air dual oxidants, adjust the fuel ratio to improve the combustion efficiency, and realize sea-air amphibious high-efficiency power.

The plate heat exchanger provided by the present application includes a plate assembly, the plate assembly includes a first plate and a second plate; the first plate has a first plate portion and a plurality of first protrusion structures; a first groove is formed between two adjacent first protrusion structures; the second plate has a second plate portion and a plurality of second protrusion structures; a second groove is formed between two adjacent second protrusion structures; the first protrusion structure and the second protrusion structure both have a plurality of extension sections and a plurality of connecting sections; the first protrusion structure of the first plate contacts with the second protrusion structure of the second plate at least partially in its connecting section at its connecting section, the extension section of the first protrusion structure is located above the notch of the second groove; the extension section of the second protrusion structure is located above the notch of the first groove. The present application is conducive to reducing the fluid pressure drop as much as possible while obtaining a better heat exchange effect.

The present application provides a plate heat exchanger, including a plate assembly, the plate assembly including a first plate and a second plate; the first plate has a first plate portion and a plurality of first protrusion structures located in its main heat exchange area; the second plate has a second plate portion and a plurality of second protrusion structures located in its main heat exchange area, the first protrusion structure and the second protrusion structure both have a plurality of extension sections and a plurality of connecting sections; each connecting section is connected between two adjacent extension sections; wherein the first protrusion structure contacts and crosses with the second protrusion structure at its extension section at its extension section; at least one of the first plate and the second plate satisfies that the number of cross positions formed by the protrusion structure belonging to the plate at each extension section thereof contacting with the extension section of the protrusion structure of another adjacent plate is one. The present application is conducive to reducing the fluid pressure drop as much as possible while obtaining a better heat exchange effect.

A plate heat exchanger includes a first plate and a second plate; the front side of the first plate is opposite to the back side of the second plate; the first plate has a first plate portion and a plurality of first protrusion structures located in its main heat exchange area; the second plate has a second plate portion and a plurality of second protrusion structures located in its main heat exchange area; the protrusion structure has a plurality of extension sections and a plurality of connecting sections, each connecting section is respectively connected between the ends of the extension direction of two adjacent extension sections; at least one plate satisfies that the number of cross positions formed by the protrusion structure belonging to the plate at each extension section thereof contacting the extension section of the protrusion structure of another plate is two. The present application is conducive to improving the heat exchange performance of the plate under the condition of lower flow pressure drop.

This invention discloses a radial flame stabilizer with airflow-assisted jet, comprising an outer wall and an inner wall. Both the outer and inner wall surfaces have V-shaped cross-sections, including a pointed tip and two tail ends. The two corresponding tail ends of the outer and inner wall surfaces are connected by a flow-rectifying wall. An air-guiding groove is provided at the pointed tip of the outer wall, and several injection holes are provided near the tail ends. The air-guiding groove, the interlayer between the outer and inner wall surfaces, and the injection holes form an airflow channel. A fuel injection extension pipe is provided near the tail ends of the inner wall, extending from the inner wall towards the injection holes. The fuel injection extension pipe guides the fuel injection from the injection holes. By introducing a portion of the incoming flow through the air-guiding groove at the stabilizer head, and utilizing the method of coaxial injection of the introduced incoming gas and fuel, the problem of shallow fuel jet depth and difficult evaporation under high-speed, large-flow conditions is improved, resulting in better fuel evaporation and mixing performance compared to conventional radial flame stabilizers.

The plasma combined trailing edge suction flow control device for the rotor blades comprises a plurality of blades (1), and nanosecond pulse dielectric barrier discharge plasma exciters (2) are installed at the front edges of the blades and cover the extension length of the whole blades; the tail end of the paddle is provided with an air suction device (3), and the center of an air suction port is A% c away from the front edge. The tail end air suction device (3) comprises a tail end air suction port (3-1), a low-pressure air chamber (3-2) and a connecting pipeline (3-3). When rotor wing type dynamic stall is controlled, the high-frequency nanosecond pulse power supply (4) is used for powering up the nanosecond pulse dielectric barrier discharge plasma exciter (2). The invention further provides a plasma combined trailing edge suction flow control method for the rotor blade. Through combination of plasma excitation and trailing edge air suction, the airfoil upper surface flow field structure can be effectively interfered, the flow separation degree is reduced, the average lift force of the rotor blade is improved, and therefore the performance of the rotor blade is improved.