4results about How to "Enhanced entrainment" patented technology

The invention discloses a plasma jet device based on ionic wind driving, which comprises a hollow cylinder, a high-voltage metal needle electrode plate is mounted in the cylinder, a plurality of high-voltage metal needle electrodes are fixed on the high-voltage metal needle electrode plate in an annular array manner and are connected with a high-voltage excitation power supply circuit, and the inner wall of the cylinder is covered with a metal wall ground electrode. The insulating medium rings cling to the metal wall ground electrode and are arranged at intervals from the high-voltage metal needle electrode plate; the needle body of the high-voltage metal needle electrode, the insulating medium ring and the metal wall ground electrode form a plasma jet structure, the needle head of the high-voltage metal needle electrode and the metal wall ground electrode form an ionic wind generation structure, ionic wind generation areas and plasma generation areas are arranged in a staggered manner, and generation of plasma jet is driven by multistage ionic wind. The ion wind structure and the plasma jet structure are coupled, large gas carrier equipment is not needed, the application scene of the device is expanded, and meanwhile the plasma jet performance is improved.

The invention is applicable to the technical field of fire scientific experiments, and provides a slit-adjustable and real-time dynamic measurement fire cyclone experiment device which comprises a fire cyclone main frame device, a movable fire cyclone experiment table, an electrical console and a real-time dynamic measurement support system. The fire cyclone main frame device drives movable glass to move along a high-precision linear guide rail through a servo electric cylinder, and dynamic sealing is ensured through an L-shaped metal baffle. The electrical console takes a PLC as a core and has multiple programmable operation modes. The real-time dynamic measurement support system can remotely adjust the spatial position of the sensor, and can be linked with the movable fire cyclone experiment table to realize automatic positioning and resetting. The problems that a traditional device is non-adjustable in slit, single in air inlet mode, poor in sealing performance, inconvenient to operate and the like are solved, and a high-controllability and high-repeatability experiment platform is provided for quantitative research of fire whirlwind.

The utility model relates to the technical field of air knives, and discloses an inclined nozzle air knife which is characterized in that a splitter plate is inserted into a sliding groove, a plurality of splitter ports are formed in one side of the splitter plate, a plurality of connecting screw rods are connected between a first clamping opening plate and a second clamping opening plate through threads, and a first cover plate and a second cover plate are installed at the two ends of an air knife body respectively; an air inlet is formed in one side of the first cover plate, an air outlet is formed between the first clamping opening plate and the second clamping opening plate, and a limiting assembly is arranged on one side of the second clamping opening plate; the connecting screw rod is rotated to rotate through a tool, the connecting screw rod drives the second clamping opening plate to be close to or away from the first clamping opening plate, and therefore the distance between the first clamping opening plate and the second clamping opening plate is adjusted, and the air knife body is convenient to use; the air outlet is formed by the first clamping opening plate and the second clamping opening plate, the inner wall of the air outlet is of the beveled structure, the beveled angle is 15 degrees, the entrainment effect of air on the inner wall of the cavity of the air knife body can be improved, and therefore stable, continuous and large-flow air is provided.

The invention relates to the technical field of chemical production, in particular to a nitrotoluene rectifying still liquid steam entrainment distillation recovery device and method.The nitrotoluene rectifying still liquid steam entrainment distillation recovery device comprises a distillation separation still, the top of the distillation separation still is connected with a condensation conveying pipe, and the nitrotoluene rectifying still liquid steam entrainment distillation recovery device further comprises a steam conveying pipe arranged at the center of the top of the distillation separation still; a center conveying pipe is slidably arranged on the inner side of the steam conveying pipe in an embedded mode, and the lower end of the center conveying pipe is connected with a floating conveying disc. High-temperature and high-pressure steam is conveyed to the sealed gas storage bin in the floating conveying disc through the steam conveying pipe and the central conveying pipe, and the floating conveying disc can circularly move up and down when conveying the steam so as to realize uniform release of the steam in liquid and stir the liquid to a certain extent, so that uniform distribution of the steam in distillation kettle liquid is ensured, and the quality of the distillation kettle liquid is improved. The phenomenon of local overheating or non-uniform distribution of steam in the traditional entrainment distillation process is avoided, and the entrainment distillation efficiency can be improved.