81results about How to "Reduce flow time" patented technology

Provided is a micro fluidic device that can control a flow time of micro fluid by using a capillary phenomenon. The micro fluidic device includes: a flow channel for flowing fluid, the flow channel being formed between a top substrate and a bottom substrate or between a top substrate, a bottom substrate, and a middle substrate; a flow blocking surface for stopping a flow of the fluid in the flow channel temporarily; and a hump for delaying the flow formed in the line of continuity with the flow blocking surface. The micro fluidic device of the present research can control the flow time in a simple manner.

The invention discloses a gentleman urinal splash prevention device which comprises a base, wherein splash prevention teeth are densely arranged on the base. The whole gentleman urinal splash prevention device has the characteristics of simple structure, good effect of splash prevention, no urine residue and avoidance of peculiar smells, and has good popularization benefits.

The invention relates to a tube-type UHT high heat recovery rate hot water heat exchange system. In a product pipe, a balance tank, a product pump, a degassing section, a heating section, a sterilization section, a heat recovery section, a tower water cooling section and an ice water cooling section are orderly arranged in the product pipe from an inlet to an outlet. A hot water pipe comprises a heat recovery section hot water circulation part and a sterilization hot water circulation part. The heat recovery section hot water circulation part orderly comprises a cooling hot water tank and a cooling hot water pump and the hot water orderly flows through a heat recovery section, a heating section and a degassing section and finally returns to the cooling hot water tank. The sterilization hot water circulation part orderly comprises a sterilization hot water tank, a sterilization hot water pump and a steam section and the hot water flows through the sterilization section and finally returns back to the sterilization hot water tank. Through a reasonable flow ratio of hot water to product, a high heat recovery rate is obtained.

The invention discloses an MBR (membrane bioreactor) sewage treatment machine. The MBR sewage treatment machine comprises an anaerobic tank, an MBR membrane tank and a disinfection tank which are sequentially connected in an integrated manner, wherein a sewage inlet is formed in a side wall, far away from the MBR membrane tank, of the anaerobic tank, elastic filler is arranged in the tank wall of the anaerobic tank, and two rows of anaerobic tank separating plates are vertically arranged in the anaerobic tank at intervals and are alternately fixed on a top cover and a bottom wall of the anaerobic tank; an aeration pipeline is arranged at the bottom of the MBR membrane tank, the aeration pipeline is connected with a blast blower, the bottom, far away from the anaerobic tank, of the MBR membrane tank is connected with a reflux pump, and the water outlet of the reflux pump is connected to the sewage inlet of the anaerobic tank; and the disinfection tank is connected with a disinfector, and two rows of disinfection tank separating plates are vertically arranged in the disinfection tank at intervals and are alternately fixed on a top cover and a bottom wall of the disinfection tank. The MBR sewage treatment machine disclosed by the invention has the advantages that sewage treatment effect is good, and service life of an MBR membrane can be prolonged.

Method for delivering a short coffee extract faster from a closed capsule containing ground coffee by injecting water under pressure within the capsule. The capsule is filled with ground coffee, has a delivery membrane and is extracted in a coffee extraction device and pressurized water is injected in the capsule under pressure. The coffee beverage is released through the beverage delivery membrane of the capsule with engaging means engaging in and/or against the membrane. The pressure loss is reduced in the coffee bed by providing ground coffee having a reduced percentage of fines (F) depending on the average particle size (D4,3). The extraction yield is maintained between 15 and 30% and the coffee extract of 25 or 40 grams is delivered in a flow time of 20 seconds or less.

The invention discloses a foaming method. The foaming method is characterized by comprising the following steps of: manufacturing a foaming module, filling foaming materials into an inner cavity of a module for multiple times, wherein the drop points of the filled foaming materials of each time are different, and foaming and expanding the foaming materials until the inner cavity of the module is fully filled. The foaming method provided by the invention has the advantages that a multi-point injection method is utilized for foaming, the flowing time of foam in a cavity of a box body is shortened, and the production efficiency is improved, the materials flow to each filling part before beginning to carry out a foaming reaction, the foaming materials are fully reacted, the diameters of foaming holes are fine and uniform, and a heat preservation effect is good.

The invention belongs to the technical field of composite molding process, relating to an enhanced permeable medium. The enhanced permeable medium is laid by odd layers of non-woven parallel yarns at a certain angle and is weaved by yarns used for weaving in low weaving density to form a three dimensional fabric with sparse weaving points; vast penetrating gaps or grooves are reserved in the fabric to provide channels for air and resin flow, so that the fabric has better permeably property of resin. The enhanced permeably medium of the invention can effectively increase flow rates of resins, realize sound immersion of fiber fabrics in resins, obviously increase reliability of pouring technique and improve uniformity of products. The products with smooth surfaces are directly obtained when using the medium without changing die structure, thus saving time and labor and being economical and efficient. The enhanced permeably medium of the invention has strong designability, and permeable media with demand structures are obtained by designing structural parameters such as material quality, yarns and angles, etc. according to the characteristics of the composite.

A manufacturing method of a motor rotor comprises the steps of preparing a plurality of silicon-steel plates, a shaft lever, and a mould provided with both an injection opening and a suction opening, sleeving the shaft lever into the laminated silicon-steel plates, placing the shaft lever and the silicon-steel plates into the mould, conducting suction by the suction opening to allow the interior of the mould to be in a vacuum state, injecting molten copper into the mould via the injection opening, allowing the molten copper to flow to the suction opening under the effect of the vacuum state, so as to be filled in the whole mould, cooling the mould, allowing the molten copper to form a copper ring on the silicon-steel plates, and cooling to the room temperature, thereby accomplishing the manufacturing of the motor rotor. The manufacturing method of the motor rotor can increase the product yield.

The invention discloses a method for preparing high-fluidity silica mortar. The method includes the steps that 1, material preparation is conducted, wherein the raw material is prepared from 40%-60% of silica fume, 40%-60% of water and dispersing agents which accounts for 0.06%-1.00% the mass of the silica fume; 2, the silica fume and dispersing agents which are prepared ready are placed in a silica mortar stirrer; 3, water is added into the stirrer while stirring is conducted slowly for 4-6 minutes, and then the silica mortar is obtained. The method is simple in process, the high-fluidity silica mortar can be prepared only through the dispersing agents, and the prepared silica mortar can be stored for half a year at the temperature of lower than 80 DEG C without going bad. The harm to human bodies and the pollution to the environment are lowered and even eliminated in the use process of the high-fluidity silica mortar, the function of the silica mortar is fully played, and the mechanical property and the endurance quality of concrete are improved. The obtained silica mortar can be widely applied to important engineering of high requirements for the concrete, such as, high-strength concrete, marine concrete and hydraulic concrete.

The invention discloses a composite cavity box segment liquid-state forming method. The method comprises following steps of skin and core mold blank body paving and pasting, core mold and secondary runner assembling, upper skin paving and pasting, upper mold and other mold assembly, resin injection, and mold releasing. The forming method is used for liquid-state forming of a composite cavity box segment. Compared with the prior art, the method solves the problems that the injection path is long, the period is long, and deficient glue defects are easily caused, large resin viscosity and difficult injection caused by long-time injection and end injection can be avoided, part manufacturing efficiency is improved, and the manufacturing cost is reduced.

The invention belongs to the field of water processing equipment, and discloses an MBR flat membrane element, which comprises a support plate, guide cloth, and filter membranes. The guide cloth is welded on two lateral surfaces of the support plate. The filter membranes are arranged on the external surfaces of the guide cloth and welded on the external frame of the support plate. Two lateral surfaces of the support plate are provided with guide grooves. The guide grooves are vertically arranged in the inner surfaces of the guide cloth; the direction of the guide grooves is the same as the flowing direction of fluids; and the guide grooves are staggered from each other. By arranging guide grooves in the support plates, the resistance during the filtering process is reduced, the water flux is increased, and the operation cost is reduced.

The invention discloses a casting method of an aluminum ingot. The casting method includes the following steps that aluminum oxide is produced from aluminum ore through a Bayer process, a mixing furnace is preheated, the aluminum oxide is melted in a smelting furnace, molten aluminum liquid is poured into the mixing furnace, then a solvent is added for refining, stirring is conducted back and forth for 0.5 h, then standing is conducted for 5 min to 10 min, dross is fished out, nitrogen is directly led into the aluminum liquid, the aluminum liquid continuously passes through alumina balls, a furnace eye of the mixing furnace is aligned with a second casting die and a third casting die of a casting machine, the temperature of the aluminum liquid in the mixing furnace is maintained at 55 DEGC to 70 DEG C, the furnace eye and the casting machine are connected through a flow groove, and the aluminum liquid is cooled gradually. By means of the casting method, the solvent is used for adsorbing oxidized impurities in the aluminum liquid, the nitrogen is used for removing nonmetallic inclusions and dissolved hydrogen in the aluminum liquid out, the impurity removing rate is high, purity ofthe cast aluminum ingot is ensured, during casting, the temperature of the aluminum liquid in the mixing furnace is ensured, air holes and cracks of the aluminum ingot can be prevented, and the production efficiency is high.

The invention discloses a coal and rock mass deep hole subsection grouting reinforcement device and a reinforcement method. The coal and rock mass deep hole subsection grouting reinforcement device comprise a grouting device and at least two groups of grouting pipeline assemblies, wherein the grouting device is provided with slurry outlets matched with the grouting pipe assemblies one by one, connected with the inlet ends of the grouting pipe assemblies and used for conveying different materials, the outlet end of each grouting pipe assembly is connected with a grouting head and can be detached from the grouting head by rotating on its axis. According to the coal and rock mass deep hole subsection grouting reinforcement device and the reinforcement method, the grouting pipeline assembliescan be separated from the grouting heads, so that grouting pipelines are convenient to disassemble, and the grouting heads are secondarily installed for the second time to realize grouting in the nextstage. The grouting range of the structure can be selected, the problems of small effective grouting range, serious slurry leakage phenomenon, complex grouting construction organization and the likeof an existing method for reinforcing a coal and rock mass through shallow hole grouting with high polymer reinforcing materials can be effectively solved, and meanwhile the problems of large diffusion radius fluctuation, difficulty in hole formation and difficulty in reusing drilling holes of deep hole grouting materials can be overcome.

Glue (4) filling method and device in the semiconductor package is provided. The glue (4) is coated to one edge or four edges of semiconductor or chips on the substrate, the glue (4) is flowing between the chip and the substrate until the space is full filled. Several edges of device are coated glue (4) and the device is moved to the vacuum box, the glue (4) is batch flowing in the several devices so that the time of filling glue (4) is decreased and the production efficiency is increased. The glue (4) is solidified in the vacuum box and the air bubbles cancel during formed glue (4) time and the cavities cancel due to the gas volatilize during glue (4) solidified. The quality and the reliability of device glue (4) filling is increased.

The invention discloses an outage holding relay and a drive circuit thereof. A coil in the outage holding relay enables an iron core to reject or attract a movable magnet through electric currents in different directions, and accordingly movable contact points are driven to move so as to enable a switch to close or open. Two fixed iron pieces in the relay fixedly reach the magnet on a preset position through magnetic force, so that after the switch closes or opens, electricity does not need to be supplied to the coil any longer. The relay detects whether the movable contact points reach preset positions or not by using two switches, and the drive circuit finishes supplying the electricity to the coil of the relay according to a signal. The outage holding relay and the drive circuit thereof can automatically stop supplying the electricity to the coil after the movable contact points reach the preset positions, and therefore energy consumption is reduced. A control signal of the outage holding relay does not need adopting a pulse mode of an existing magnetic holding relay control signal, and therefore the outage holding relay is convenient to use, and furthermore close and open of the switches in the relay can be reliably guaranteed.

The invention provides a flexible AAC plate production technology. Through working procedures of raw material preparation, weighing and metering, stirring, pouring, standing and curing, cutting, steam curing and plate severing, production and manufacturing of autoclaved aerated concrete plates are completed, in the stirring working procedure, a powdery material is added into a powder spraying system, and the powder spraying system matches a liquid spraying system to make the powdery material and liquid mixed in the air, so that the situations that a large amount of a powdery material is added into a stirring tank to form a large number of dust bubbles, consequently the subsequent stirring time is long, and half-cooked materials generated in subsequent production are caused by the bubbles which are not fully stirred are avoided; and the production efficiency is improved by means of synchronous stirring, pouring and vibrating.

The invention relates to a grease injection head facilitating conductive grease filling of a strain clamp. The grease injection head comprises a body. The body includes an outer sleeve and an inner sleeve. A grease injection channel is arranged in the middle portion of the inner sleeve, and the inner sleeve comprises a connecting section and a positioning section. The outer sleeve comprises a positioning end surface and a fixing head, the body is fixed on the strain clamp by the positioning section and the positioning end surface. The grease injection head has the advantages that the body is fixed on the strain clamp by the positioning section and the positioning end surface arranged on the outer sleeve, then conductive grease is injected into the strain clamp through the grease injectionchannel on the inner sleeve, since the positioning section extends into the strain clamp, the conductive grease can be accurately injected into the specified position of the strain clamp, the flowingtime of the conductive grease in the strain clamp is reduced, and the injection efficiency of the conductive grease is improved; and in addition, because the positioning end surface is always in contact with the strain clamp, the mutual sliding between the grease injection head and the strain clamp is effectively avoided, so that the waste phenomenon of the conductive grease in the injection process is reduced, and the working efficiency of the grease injection is improved.

The invention discloses a boiler peak regulation method of a W flame boiler for flexible peak regulation of a double-layer coal bunker, relates to the W flame boiler for flexible peak regulation and the boiler peak regulation method, and aims to solve the problems that a very few of existing W flame boilers can realize 30% ultra-low load stable combustion, the difficulty of the peak regulation technology is high, and the requirements for flexible peak regulation and deep peak regulation of a current electric environment can be hardly met. The W flame boiler comprises a W flame boiler combustion system and a coal bunker system, the W flame boiler combustion system comprises a hearth and two sets of double-cyclone-cylinder combustors, and the coal bunker system comprises coal blending bunkers and the double-layer coal bunker. The method is realized according to the following steps that step 1, preparation work is conducted, wherein inferior anthracite and meagre coal are daily stored in main coal bunkers and coal blending bunkers, and high-quality anthracite is daily stored in inner-layer coal blending bunkers; step 2, combustion work is conducted, wherein the W flame boiler is started to work; and step 3, peak regulation work is conducted, wherein peak regulation work is set according to requirements. The boiler peak regulation method is used in the field of boiler combustion.