48results about How to "Uniform jet" patented technology

The present invention belongs to atmospheric pressure discharge cold plasma generator technology field. It features said generator gas supply system adopting double gas source gas supply system and uncover electrode structure, thereby constituting flat plate type or circle type or elliptic type atmospheric pressure discharge cold plasma generator. Said double gas source gas supply system can realize stabilizing gaseous discharge unable realized in inducing air or other atmospheric pressure, uncover electrode structure capable of avoiding electrode surface dielectric medium damage in current media blocking discharge.

The invention relates to an atomizing nozzle (1) used for a sanitary water outlet unit, and the atomizing nozzle (1) is used for atomizing water under pressure. The atomizing nozzle (1) provided by the invention is characterized in that the atomizing nozzle (1) is provided with a swirl chamber (2), at least one supplying channel (4) which is parallel to the longitudinal axis of the nozzle and enters the swirl chamber (2) in an approximately-tangent manner is introduced into the swirl chamber, and the swirl chamber (2) becomes thinner along the outflow direction and towards a nozzle channel (5). By employing the atomizing nozzle (1), a uniform water jet can be generated in a jet figure, although the water jet is small in volume, the the water jet makes people think that the water jet is big in volume.

The invention relates to a cooling device generating a flat jet and a manufacturing method thereof, the cooling device is characterized in that an inner pipe and an outer pipe of the cooling device are eccentrically fixed through a positioning strip for forming a cavity between the inner pipe and the outer pipe, a slit is formed in the axial direction, the width of the slit can be regulated through a tightening bolt and a compression bolt, a flange is welded at the inlet end of the inner pipe for connecting with a cooling medium pipeline, a steel plate is welded at the outlet end for sealing,and the cooling device is further provided with an inner cavity pollution discharge port. An end plate is welded at the inlet end of the cavity between the inner pipe and the outer pipe and used for sealing, the outlet end of the cavity and the flange are sealed through the end plate, and pollution can be discharged out of the cavity between the inner pipe and the outer pipe. Two rows of tidy flow through holes are formed on the inner pipe, and a cooling medium enters into the inner pipe via the flange at the inlet end, and then flows into the cavity between the inner pipe and the outer pipe via the flow through holes and further forms flat jet via the slit for cooling the steel plate. The eccentric arrangement of the inner pipe and the outer pipe of the device can form multiple damping effects for the cooling medium, the slit enables the cooling medium to form the uniform flat jet in the width direction of a rolling line, and multiple reinforcing ribs are welded outside the outer pipe in the radial direction for preventing deformation.

The invention discloses a portable large-area plasma jet device and system, and belongs to the technical field of plasma generating devices, the portable large-area plasma jet device comprises a shell, a jet nozzle array, a pin electrode array, a resistor array, a high-voltage node and a boosting module; a fixing cavity of the boosting module and a main pipeline are arranged in the shell; one end of the main pipeline is provided with a gas inlet interface, and the other end is provided with a plurality of independent gas pipelines; each jet flow nozzle in the jet flow nozzle array is communicated with a corresponding gas pipeline, and a plurality of needle electrodes in the needle electrode array are positioned in a plurality of corresponding gas pipelines; a plurality of pin electrodes of the pin electrode array are electrically connected with a plurality of resistors corresponding to the resistor array respectively, and the plurality of resistors are electrically connected with the high-voltage node; and the high-voltage node is electrically connected with the high-voltage side of the boosting module. According to the invention, a distributed resistor-needle series array electrode structure is used, and an independent needle electrode-jet nozzle is communicated with a gas pipeline, so the electric field distribution is optimized, and the uniformity of large-area jet discharge is improved.

The invention discloses a combined type stirring system. The combined type stirring system comprises a stirring tank, a disc type jet system, a central jet system, a first circulating pump and a second circulating pump. According to the stirring system, the first circulating pump and the second circulating pump are served as a power source, power is provided for stirring of the stirring tank, so that the circulating mixing motion among fluid in the stirring tank is promoted, meanwhile, the disc type jet system is combined with the central jet system, the use is convenient, and the mixing effect is good; in addition, the composite structure realizes rapid mixing among the multiple fluid, and the working efficiency is high; no dead angle exists in the whole stirring process, the energy consumption is reduced, and the homogenization degree is high; and the mechanical faults are few, the service life is long, the maintenance is avoided in the later period, the cost is reduced, and the application range is wide.

The invention relates to a scutcher, wherein a group of barbed nail rollers distributed in parallel are arranged on a rack, close to a material feed hole, in an upper chamber, a separating net bottom is arranged below the barbed nail rollers, the upper chamber is communicated with a lower chamber through an airlock valve, an upper rack roller, a lower rack roller, a cotton brushing roller, an impurity discharge auger, a cotton discharge passage and a cotton discharge auger are arranged in the lower chamber, a negative pressure chamber is arranged in an enclosure on the other side of the lower part of the upper chamber, the upper chamber is communicated with the upper end of the negative pressure chamber through the separating net bottom, the lower end of the negative pressure chamber is connected with an air suction end of a fan through an air suction bellow, the inlet of a three-way elbow is connected with an air blow end of the fan, an upper outlet of the three-way elbow is connected with one end of a flat air pipe, the other end of the flat air pipe is communicated with a lower inlet of a cotton blow pipe, and a cotton discharge hole is communicated with an upper inlet of the cotton blow pipe. The scutcher is reasonable in structural design, convenient to use, and good in cotton cleaning effect, and the unginned cotton after scotching can be fed into a cotton storage box without an additionally arranged fan.

The invention discloses a system and method for rapidly disinfecting surface pathogenic microorganisms by array jet plasma. A gas supply subsystem (20) in the system comprises a gas source, a bubble tower and a gas mixing tank; a jet plasma subsystem (40) comprises a gas inlet cabin (5), a high-voltage electrode plate (7), a grounding electrode plate (11), hollow medium tubes (9), metal needles (8) and a fixed silica gel pad; and a power supply subsystem (12) and a transfer subsystem (30) are comprised. Mixed gas is introduced into the gas inlet cabin (5) connected with a power supply, so that working carrier gas forms large-area and uniform-density plasma; multi-tube uniform flow distribution is implemented through flow limiting holes (6), and a needle-ring discharge type array electrode is formed; Useless power consumption is reduced by modulating a pulse source, the composition and concentration level of active components of a plasma flow are controlled through atmosphere composition, and disinfecting time is controlled through speed regulation and control of a transfer system. According to the device and the method of the invention, the pathogenic microorganisms on the surface of an object can be quickly disinfected in a large area with low energy consumption under the conditions of normal temperature, refrigeration and freezing.

The invention provides a gas gap pressure stabilizer. A gas rectification and pressure stabilization device is designed for a gas lubrication, resistance reduction and energy saving device for a ship.The stabilizer comprises N pressure stabilization cavities in a ship baseplate, m gas jetting holes are formed in the bottoms of the pressure stabilization cavities, and the N pressure stabilizationcavities are connected with gas supply equipment separately and fixed in the inner side or the outer side of the ship baseplate in the width direction of the ship, wherein m is larger than or equal to3, and N is larger than or equal to 1; the spacing distance between every two pressure stabilization cavities is 5-150 m, the shape of the cross section is rectangular, square, semicircular, semi-oval or wing-shaped, the interiors of the N pressure stabilization cavities are smooth, the N pressure stabilization cavities are independent from one another, and the volume (V) of the pressure stabilization cavities is equal to the specific value of CPQ to N, wherein Cp is a gas compression coefficient, Q is a gas supply amount of gas supply equipment, and N is the number of the pressure stabilization cavities; the gas jetting holes are formed in the bottom planes, parallel to the water flow direction, of the pressure stabilization cavities or formed in the ship baseplate in the pressure stabilization cavities.

The invention discloses a spiral electrostatic spinning device with a tip structure, and belongs to the technical field of electrospinning. The spiral electrostatic spinning device comprises a high-voltage power supply device, a spinning electrode and a receiving electrode. The spinning electrode is in a uniform-pitch cylindrical spiral line shape and is installed on a rotating shaft base through a rotating shaft coaxial with the spinning electrode, the spinning electrode has a sharp outer edge profile, and the high-voltage power supply device can form an electric field needed for generating jet flow between the spinning electrode and the receiving electrode. The sharp outer edge profile of the spinning electrode of the spiral electrostatic spinning device forms the tip structure, the tip part has the charge gathering effect, spinning induction can be prompted, spinning voltage can be reduced, the problem that spinning voltage is high in the needleless electrospinning technology can be solved, the fiber production quality can be further improved, and the fiber production yield can be further increased; the electrode tip structure is uniform in size and axial spacing, electric field distribution is uniform, jet flow can be uniformly generated, and uniform nanofibers can be deposited; the device is simple in structure and easy to machine, and industrial application is convenient.

The invention discloses a sharp tooth cage-shaped electrode electrostatic spinning device. The sharp tooth cage-shaped electrode electrostatic spinning device includes a sharp tooth cage-shaped electrode, a power supply, and a collecting device; the sharp tooth cage-shaped electrode includes two end plates and one or a plurality of sharp tooth linear type electrodes, the two end plates are provided with a rotation shaft, and the sharp tooth linear type electrodes are provided with a plurality of sharp teeth which are at a side edge away from the rotation shaft, have the identical distance relative to an axis of the rotation shaft, and are evenly distributed; and the power supply is electrically connected to the sharp tooth cage-shaped electrode and the collecting device, and an electric field required by jet flows is formed between all the sharp teeth and the collecting device after the power supply is on. The sharp tooth linear type electrodes can combined into the sharp tooth cage-shaped electrode, the structure is simple, the processing is convenient, and all the electrodes can be easily arranged on the same circle, so that the uniformity of the electric field can be ensured; and when the plurality of sharp tooth linear type electrodes are arranged between the two end plates, and uniform distribution operation of a solution on other sharp tooth linear type electrodes can be completed through rotation of the rotation shaft during spinning of one sharp tooth linear type electrode, so that spinning work can be continuously performed, and the efficiency of the spinning can be improved.

The invention provides a rodlike electrospinning device and an electrospinning method. The rodlike electrospinning device is characterized by comprising a rodlike spinneret and a solution supply device which is connected with the rodlike spinneret to supply spinning solution to the rodlike spinneret, the spinning solution supplied by the solution supply device can be stored in the rodlike spinneret, and the rodlike spinneret is provided with a sawtoothed gap. The rodlike spinneret is connected with a high-voltage positive electrode, and when the voltage exceeds a critical value, various electrospinning jet flows can be generated in the sawtoothed gap. The rodlike electrospinning device is simple, the spinneret is less prone to blockage, jet flow interval uniformity, easiness in cleaning and high stability are realized, and spinning efficiency can be remarkably improved while electrospinning yield is greatly increased.

The invention discloses a leakage groove air film cooling structure used for a turbine end wall and provided with protrusions and application, and belongs to the technical field of cooling of turbine guide vane end walls of gas turbines. A leakage groove structure and a leakage groove air supply cavity are arranged on the upstream portion of the turbine end wall, and the leakage groove structure is located at an outlet of the leakage groove air supply cavity and serves as a cooling airflow channel. A plurality of protruding structures are evenly distributed on the inner wall of the side, away from the turbine blade, of the leakage groove structure in the spanwise direction, the protruding structures correspond to the front edge of the suction face of the turbine blade 4 in a one-to-one mode, so that most cooling airflow flows out of a channel between the adjacent protruding structures, and an air film is formed on the cooling wall face. Cooling airflow B flowing out of a leakage groove flows in the main flow direction under driving of main flow airflow A, and an air film is formed in a cooling wall face area; the structure can greatly weaken the influence of the pressure gradient C on the leaked cold air jet on the cooling wall surface, and secondly, the coverage area of the cold air of the leaked groove on the cooling wall surface is further uniformized.

The invention discloses a spiral jet polyurethane upper-connected shoemaking device. The device comprises a base, a bottom die device, a left side die and a right side die and further comprises a spiral jet device used for spraying raw materials. The invention further discloses a multi-component polymer mixed spiral jet flow shoemaking preparation process. The process comprises the steps: a bottom die moves to the outer portions of the left side die and the right side die; a plurality of polymer raw materials are added into a feeding mechanism of the spiral jet flow device and sprayed to the shoe sole in a spiral airflow mode, and a jet flow layer used for combining the shoe upper and the shoe sole is formed; and the left mold and the right mold press the shoe last to be combined with the bottom mold, and the polymer jet flow layer sprayed on the shoe sole expands and enters the shoe upper and the shoe sole in a diffusion and permeation mode, so that the shoe upper and the shoe sole can be combined. The bottom die can be conveniently and rapidly replaced and cleaned, the spiral jet flow device can conveniently spray raw materials on the bottom die, widened special shoes and boots can be produced, the jet flow amount is large, the edge track of a formed jet flow conical surface is clear, and the device is suitable for production of all the shoes and boots.