31results about How to "Increase jet intensity" patented technology

A dish washer has a two-layer dish shelf, two water channels, a pulse device for pulse washing, a control microprocessor, and a water dividing plate controlled by control microprocessor to turn off one of two water channels. Its washing method features that said two water channels are alternatively turned off for increasing the spray force of water steam and in turn the clean level.

The invention discloses a dual-drive multi-nozzle automatic pipe network fire extinguishing device. The dual-drive multi-nozzle automatic pipe network fire extinguishing device comprises two extinguishing agent storage rooms, a dual-drive device, a pipe network and two boosting automatic start-up devices, wherein the two extinguishing agent storage rooms are provided with solid extinguishing agents respectively; one end of each of the two extinguishing agent storage rooms is provided with an extinguishing agent output end; the dual-drive device comprises two drive units and a starting wire which is used for initiating the two drive units; the pipe network is U-shaped and is provided with two extinguishing agent inlets and a plurality of extinguishing agent nozzles; the starting wire is connected and cooperated with the two drive units respectively; the two drive units are independently connected with one extinguishing agent storage room respectively; and the extinguishing agent inlets of the pipe network are connected with the extinguishing agent output ends of the two extinguishing agent storage rooms through the boosting automatic start-up devices respectively. The dual-drive multi-nozzle automatic pipe network fire extinguishing device is benefit to extending the spraying time of the extinguishing agents and realizing multi-aspect three-dimensional protection, fire hazard area spreading is avoided, and secondary reigniting of an inflammation point is effectively prevented; and the extinguishing agent spraying strength is high, and the extinguishing effect is better.

The invention relates to a preparation method and a preparation device of high-depth-diameter ratio micropores. The preparation method and the preparation device are used for high-depth-diameter ratio micropores. The preparation method is used for preparing the high-depth-diameter ratio micropores in a dual-pulse combination manner; the laser source comprises two laser combinations different in pulse width; a digital signal time delay generator is used for controlling the two pulse combinations for the time of a sample; the laser pulses of two laser devices are combined and focused on the sample by use of an optical component to perform laser etching on the sample directly; the preparation device comprises a femtosecond laser device, a nanosecond laser device, a digital signal time delay generator, a half-wave plate, an optical polarizer, a beam splitter, a total reflector, a white light source, a charge coupling element, a three-dimensional mobile platform and a computer. The preparation method is capable of directly breaking through the maximum micropore high-depth-diameter ratio limit that can be available by use of single pulse and well solving the technical problem of low depth-diameter ratio in current micropore preparation.

The invention discloses a pressure controlled low temperature storage tank with a jetting device. The pressure controlled low temperature storage tank consists of a tank body, a low temperature circulating pump, a liquid throttle valve, a heat exchanger, a fluid ejector and an exhaust cooling system. The heat exchanger comprises a first heat exchange path and a second heat exchange path in countercurrent arrangement, the tank body, the low temperature circulating pump, the first heat exchange path and the fluid ejector are communicated with each other in order to form a large stream fluid circulation loop, the tank body, and the liquid throttle valve, the second heat exchange path and the exhaust cooling system are communicated with each other in order to form a throttling refrigeration route. The fluid ejector is arranged in the tank body, and the fluid ejector is provided with jet orifices at least in the upper space inside the tank body. The exhaust cooling system includes an ejector, an orthohydrogen-parahydrogen conversion device and an exhaust cooling coil. The pressure controlled low temperature storage tank provided by the invention has the advantages of simple structure, large jet intensity, and good heat exchange efficiency, can effectively eliminate heat leakage of the tank body, and realize good control of the tank pressure, and has good application value and popularization prospect for long-term storage of cryogenic propellants.

The invention discloses a reed type hydrodynamic ultrasonic gas-liquid-solid multi-phase mixer. The reed type hydrodynamic ultrasonic gas-liquid-solid multi-phase mixer comprises an upper cover, a lower bottom and a plurality of reeds. The upper cover and the lower bottom are detachably combined in a sealed mode to form a cavity. The multiple reeds are horizontally and fixedly arranged on the inner wall of the upper cover at intervals. The upper cover comprises a gas introduction pipe, a solid supporting frame and first nozzle passages. The lower bottom comprises a liquid introduction pipe and second nozzle passages. The tip end of any reed is opposite to the liquid outlet end of one of the second nozzle passages at the distance of 2-8 mm. Each second nozzle passage is of a narrow-seam structure 1-3 mm wide. The diameter of each first nozzle passage is 2-4 mm, and the first nozzle passages all enable gas to be sprayed towards one reed. Through introduction of the surrounding type reed structure and solid-phase materials, the atomization effect of the mixer is improved, the gas amount needed in the atomization process is lowered, and the reed type hydrodynamic ultrasonic gas-liquid-solid multi-phase mixer has the beneficial effects of being simple in structure, high in maneuverability, safe and reliable.

The present invention relates to a fire extinguishing composition containing saccharide and a saccharide derivative, comprising a saccharide derivative, a saccharide material and an auxiliary fire extinguishing agent, whose mass percentages are respectively: saccharide derivative 30%-60%, saccharide material 10%-40%, and auxiliary fire extinguishing agent 10%-30%. The fire extinguishing composition uses a pyrotechnic agent as a heat source and a power source, is heated and decomposed or reacts by using the heat of burning of the pyrotechnic agent, to generate a fire extinguishing material to be sprayed together with the fireworks agent, thereby achieving the fire extinguishing purpose. The fire extinguishing composition of the present invention uses a saccharide derivative and a saccharide material as primary ingredients, uses a pyrotechnic agent as a heat source and a power source, and is easily decomposed after being heated to generate non-toxic and harmless gas. The environment is not polluted after the ejection, the effective utilization rate of components is high, and the material obtained through decomposition can also extinguish fire, so as to generate a synergistic action on the pyrotechnic agent, thereby improving the fire extinguishing performance of the whole fire extinguishing composition.

A long-distance energy-saving fine water sprayer comprises a base body. The base body is a hollow cylinder, a plug is arranged in the middle of the cavity of the base body, one end of the base plate is conical and provided with an inner thread, an annular rib is arranged around the plug and clamped in the groove correspondingly arranged in the cavity of the base body, the center of the rib is provided with another groove, and wear-resistant balls are arranged in the groove. One end face of the plug is provided with a plurality of inclined reducing through holes, 3-4mm of slim holes are arranged in front of 1 / 3 of length of the reducing through holes, and coarse holes with the diameter 3-5 times larger than the slim holes are arranged on the 2 / 3 length of the reducing through holes. Spiral guide columns are arranged in the holes, hollow plugs are arranged at the tail ends of the coarse holes, the outer wall of the base body is provided with through holes in a circle, and the through holes are arranged in the front side of the slim holes of the reducing through holes. The long-distance energy-saving fine water sprayer is simple in structure, long in spraying distance and applicable to technical application.

The invention discloses a low-temperature propellant storage tank with a pressure control device. The low-temperature propellant storage tank comprises a low-temperature propellant storage tank body,a low-temperature circulation pump, a throttling valve, an expansion machine, a double-pipe heat exchanger, an exhaust cooling coil and an exhaust valve. In order to improve the heat exchange efficiency of the heat exchanger, the reverse-flow double-pipe heat exchanger is adopted, and more cooling capacity can be generated. Meanwhile, fluid passing through the throttling valve absorbs heat and becomes saturated gas or superheated gas which is expanded and cooled through the expansion machine after being discharged out of the tank body, the low-temperature gas forms a cold shield through the cooling coil wound in an insulation layer outside the tank body, external leakage is reduced to the greatest extent, and the exhaust cooling capacity is fully used. The low-temperature propellant storage tank is simple in structure and high in heat exchange efficiency, the cooling capacity is fully used, the tank body pressure is effectively controlled, and effective guarantee is provided for long-term storage of a low-temperature propellant and the tank body pressure.