47results about How to "Full conduction" patented technology

The invention discloses a needleless electrostatic spinning device with a porous flexible pipe. The device comprises a spinning solution storage chamber, a hydraulic pump, a porous flexible pipe, a supporting framework, clamping hoops, a high-voltage static generator, receiving net curtains and guide rollers, wherein the hydraulic pump is connected to the spinning solution storage chamber; a feeding hole is located in one end of the porous flexible pipe; the porous flexible pipe is fixed on the supporting framework by the clamping hoops made of an insulating material; the clamping hoops and the supporting framework are connected by threads; the other end of the porous flexible pipe is sealed by a pipe joint; the high-voltage static generator is connected to the outer surface of the porous flexible pipe; receiving devices are located right above and right below the porous flexible pipe; the guide rollers are fixed on the supporting framework; the receiving net curtains are fixed on the guide rollers; the receiving net curtains can output packaged nano-fiber mats with rolling of the guide rollers, and the receiving net curtains are grounded by conducting wires. The device disclosed by the invention has the advantages that the bore diameter of an inner pipe can be changed through adjustment of the back pressure of a spinning solution inside the pipe based on adjustment of the hydraulic pump, and metal wire edges distributed in various forms can be formed on the surface of a metal flexible pipe, so that more jet flows can be generated easily.

The invention discloses a direct-current supporting thin-film capacitor resistant to large ripple currents. The direct-current supporting thin-film capacitor comprises a capacitor body, which comprises a core group, upper and lower busbars and an insulating layer, wherein the core group comprises cores, the core is formed by winding a metallized polypropylene film, the film has a metal conductivearea, a plurality of T-shaped insulating areas are arranged on the metal conductive area, fuses are arranged between adjacent T-shaped insulating areas, the cores are arranged into two layers up and down, the lower busbar is arranged on one side of the core group and connected with the cores through welding copper plates, the upper busbar is of a [-shaped structure, the core group and the lower busbar are installed in the upper busbar, the cores are connected with the upper busbar, the insulating layer is arranged between the upper and lower busbars, the capacitor further comprises a shell made of a heat dissipation material, the capacitor body is installed in the shell and encapsulated through an epoxy resin, the upper busbar and the lower busbar are provided with connecting terminals located outside the shell, and the shell is provided with a heat dissipation face. According to the invention, the ripple current resistance can be improved, the equivalent series resistance and thermalresistance are reduced, and sufficient heat dissipation is realized.

The invention discloses an incineration tower capable of gasifying and melting domestic waste directly. The incineration tower capable of gasifying and melting domestic waste directly comprises a feeding port, a tower bin, a heat collector, a secondary combustion chamber, an incinerator, a drying machine, a smoke pipeline, a cooling furnace and a heating system. The feeding port is formed in the top end of the tower bin. The smoke pipeline is arranged above the tower bin. A discharging port and an ash circulating outlet are formed in the bottom of the tower bin. The ash circulation outlet is connected with an inlet of the incinerator. The incinerator is further provided with an ash outlet and a waste gas outlet. The ash outlet is connected with a heat conduction inlet of the drying machine. The waste gas outlet is connected with the secondary combustion chamber. The heat collector comprises a heat collection pipe, a heat collection disc and S-shaped guide pipes, wherein the lower portion of the heat collection disc is connected with the heat collection pipe, the bottoms of the S-shaped guide pipes are mounted on the heat collection disc, and the S-shaped guide pipes are evenly distributed in the tower bin. The secondary combustion chamber is connected with heat collection pipe. An inlet of the cooling furnace is connected with the smoke pipeline, and an outlet of the cooling furnace is connected with the heating system. The incineration tower is small in occupied area, waste sorting is not needed, no comburent needs to be added, investment cost and operating cost are low, maintenance is convenient, and incineration tower can be widely popularized easily.

The invention relates to the technical field of petroleum fractionation, and in particular, relates to a fractionation device in a petroleum coke production process, wherein the fractionation device comprises a first rectifying tower and a second rectifying tower; the top of the second rectifying tower is provided with a second heavy component branch pipe and a second light component branch pipe, and one end of the second heavy component branch pipe and one end of the second light component branch pipe are sleeved with spiral heat conduction pipes; a first heavy component branch pipe is mounted at the top of the first rectifying tower, one end of the first heavy component branch pipe is connected with a first heat exchange mechanism, and an auxiliary mechanism is arranged on one side of a uniform mixing box. Fluid in the uniform mixing box can be fully stirred and sloshed, so that the fluid in the pipeline can be uniformly mixed at a temperature, the temperature difference between a second heat exchange pipe and the spiral heat conduction pipes caused by too high temperature of the outer layer of the pipeline is avoided, the overall temperature of the uniformly-mixed fluid is uniformly mixed, the temperature difference between the second heat exchange pipe and the spiral heat conduction pipes is enlarged, then the secondary heat exchange efficiency is improved, and sufficient absorption of heat in the second rectifying tower is achieved.

The invention discloses a bandgap reference trimming circuit suitable for low voltage. The circuit includes a bandgap reference trimming circuit, an oscillator circuit, a voltage detection circuit, a charge pump circuit and a logic circuit. On the basis of using MOS switch tubes to control and adjust the bandgap reference voltage, the present invention improves the performance of MOS switch tubes when the input power supply VDD is low by introducing an oscillator circuit, a charge pump circuit, and a power switching circuit. Control the voltage to ensure that the MOS switch tube can be fully turned on, reduce the influence of the on-resistance on the resistance in the bandgap reference trimming circuit, and effectively solve the problem of the reference voltage rise of the bandgap reference circuit in the low-voltage state of the input power supply , improving the consistency of the reference voltage of the bandgap reference circuit under full voltage input.

The invention relates to a turbulent bar structure for a drying cylinder with the functions of high efficiency and energy saving, comprising a plurality of connection rings and bar-shaped turbulent bars, the plurality of connection rings are arranged in a drying cylinder coaxially, and the plurality of turbulent bars which are contacted with the internal wall of the drying cylinder are arranged fixedly and uniformly in radial direction on the peripheries of the plurality of connection rings. The structure is characterized in that each turbulent bar is solid and the external surface thereof isprovided with the cambered surface capable of attaching to the internal wall of the drying cylinder tightly. The turbulent bar structure of the invention has simple structure, scientific and reasonable number and size of the turbulent bar, and can effectively enhance the heat conductivity of the steam. Compared with the prior art, when the rotating speed is low, the surface temperature of the drying cylinder can be enhanced by 4 to 11 DEG C, and when the rotating speed is high, the surface temperature of the drying cylinder can be enhanced by 6 to 7 DEG C, thereby effectively ensuring the drying effect of the paper when the drying cylinder rotates in high speed, saving the energy on the whole, and enhancing the production efficiency.

The invention discloses an efficient energy-saving boiler. A boiler body and a boiler container are included. The boiler body is internally provided with a first vertical pipe and a second vertical pipe. The lower end of the first vertical pipe communicates with the boiler container. The upper end of the first vertical pipe is closed. The second vertical pipe upwards penetrates through the outer wall of the boiler body. The lower end of the second vertical pipe is closed. Each of the ends, getting close to each other, of the first vertical pipe and the second vertical pipe fixedly communicateswith one short pipe. The efficient energy-saving boiler has the advantages that multiple heat conduction pipes are arranged in the efficient energy-saving boiler, an automatic control device controlshot air in the boiler to flow into the heat conduction pipes from the positions of short pipes at different positions, it is ensured that the obvious temperature difference exists between the hot airof the heat conduction pipes and the water at the position, hot air generated due to boiler combustion can stay in the heat conduction pipes at the obvious temperature difference position for a longtime, heat in the hot air can be sufficiently conducted into water, and energy of energy heating in the boiler is utilized to the maximum.

The invention discloses an efficient textile automatic dehydration drying device. The efficient textile automatic dehydration drying device comprises a placement box which is internally provided witha placement cavity, the left end wall and the right end wall of the placement cavity communicate with the external space, and the interior of the placement cavity is provided with a drying mechanism;the drying mechanism comprises two outer drying barrels which are symmetrically and fixedly arranged on the rear end wall of the placement cavity in the vertical direction and provided with drying cavities having forward openings; the rear end walls of the drying cavities are internally provided with drying power cavities; and the rear end walls of the drying power cavities are fixedly provided with drying motors. According to the efficient textile automatic dehydration drying device, by designing the two drying barrels, multiple times of drying is achieved, textiles are driven by magnetic rods to rotationally dried in the drying cavities, the drying efficiency of the textiles can be improved, and heat required by drying is sufficiently transmitted; and the drying barrels of the device isnot completely sealed, the overheat phenomenon generated in the drying process can be well avoided, and accordingly, high efficiency and safety of drying are achieved.

The invention discloses a pulse modulation circuit for triggering thyristors. The circuit includes a pulse waveform generating circuit, a modulation signal generating circuit and an AND gate circuit.A method for triggering the thyristors is also disclosed. The method includes establishing the pulse waveform generating circuit and the modulation signal generating circuit; generating a pulse widthmodulation waveform through the pulse waveform generating circuit, and generating a pulse width modulation signal through the modulation signal generating circuit; performing logic and operation on the pulse width modulation waveform and the pulse width modulation signal, and generating a driving signal; and outputting the driving signal to a thyristor so as to trigger the thyristor. Through the circuit and method, the gate loss of the thyristor of a driving chip can be greatly reduced while accurate trigger angles and trigger energy, namely the pulse action time, are guaranteed, so that the quality of the pulse modulation circuit can be enhanced; and the circuit is simple, reliable and easy in implementation.

The invention discloses a flexible circuit board wiring method, which belongs to the technical field of flexible circuit boards. The invention can replace traditional wiring methods such as welding by introducing a wiring barrel, and can be supplied by means of large-scale prefabrication. When wiring, only the circuit The self-contained leads on the board and the external leads of external components can be inserted into the junction barrel. The adaptable film in the junction barrel is preheated and softened in advance. It can rely on the magnetic attraction for independent docking and positioning, and then cool the wiring barrel to semi-permanently position the main conductive ball after the film is solidified. When it needs to be separated, it can be taken out by reheating, and it can be adapted to the film on the actual use process. The auxiliary conductive ball can release the conductive liquid to improve the electrical conductivity between the main conductive balls, so as to realize efficient and convenient wiring while having good electrical conductivity.