18results about How to "Extended dwell time" patented technology

The invention provides a system and a method for treating coexisting new pollutants in drinking water, and the system and the method are characterized in that firstly, ozone microbubble water with small volume and large specific surface area and magnetized superfine activated carbon are used for carrying out oxidation treatment on the coexisting new pollutants and adsorbing pollutants with small molecular weight and relatively high activity; the purpose of removing part of new pollutants is achieved; then, under the irradiation of an ultraviolet lamp tube, the reducing agent catalyzes sulfite to generate reducing free radicals such as hydration electrons [eaq-],. H and SO3., and under the substitution action of iodide ions, reductive dehalogenation and iodine substitution reaction of the halogenated organic matter difficult to degrade are achieved, and reduction removal of new pollutants difficult to degrade is achieved. The system is simple and compact in structure, is a treatment device integrating filtration, oxidation, adsorption and reduction, reduces the occupied area, can realize effective removal of coexisting new pollutants with different molecular characteristics and different reaction activities through multiple actions of physical interception, oxidation, adsorption, reduction and the like, and has a wide application prospect.

The utility model discloses an external circulation self-suction type residual gas recycling reaction device which comprises a reaction kettle body, a stirring paddle is arranged in the reaction kettle body, and the stirring paddle consists of a titanium porous stirring paddle and a stirring rod; the stirring paddle provides stirring power through a variable frequency motor arranged at the top of the reaction kettle; a liquid outlet, a gas outlet, a liquid inlet and a residual gas inlet are formed in the reaction kettle body, the liquid outlet is formed in the upper part of the kettle body, the liquid outlet and the residual gas inlet are formed in the bottom of the kettle body, the liquid outlet is connected with a liquid inlet pipe, the residual gas inlet is connected with a gas inlet pipe, the gas inlet pipe is nested in the liquid inlet pipe, and a three-way pipe is mounted on the liquid inlet pipe. According to the utility model, the design of a self-suction hollow stirring paddle is replaced by the design of external circulation and a large-page porous stirring paddle, so that the corrosion of corrosive gas to the stirring paddle is reduced, the mechanical strength of the stirring paddle is improved, and the service life of reaction equipment is prolonged.

The invention discloses a production device and method for preparing biological aviation kerosene through a hydrodeoxygenation method, the production device for preparing the biological aviation kerosene through the hydrodeoxygenation method comprises a reaction kettle, a stirring assembly is arranged in the reaction kettle, and the stirring assembly is used for stirring a reaction mixture; the stirring assembly comprises a hollow square shaft, a plurality of hollow stirring blades and a driving assembly, and the hollow square shaft is rotationally arranged at the bottom in the reaction kettle; the invention further discloses a production method for preparing the biological aviation kerosene through the hydrodeoxygenation method. The production method comprises the steps of S1, raw material pretreatment; s2, hydrodeoxygenation reaction; s3, separating a product; and S4, rectification. According to the device, hydrogen exhausted from the exhaust holes is sprayed out in all directions, so that the contact area between the hydrogen and raw materials can be increased, the hydrogen reaction is more sufficient and complete, waste is reduced, and meanwhile, the preparation efficiency of the biological aviation kerosene is also improved.

The invention discloses a data caching method, system and device based on a multi-level caching architecture and a medium, and relates to the technical field of data caching, the method comprises the following steps: respectively determining a plurality of logic addresses corresponding to the same data block as associated addresses, and obtaining the address number of the logic addresses of each data block; for each data block, obtaining the access frequency of each associated address in the current cache cycle, calculating to obtain the association strength of each associated address according to the number of logical addresses corresponding to the data block, and deleting the associated address with the lowest association strength until the logical address of the data block is unique when a new logical address needs to be inserted; determining a logic address uniquely corresponding to the same data block as a non-associated address, and when a new data block needs to be inserted, deleting the data block with the lowest access frequency for the insertion of the new data block; and error discrimination of the cache data popularity is reduced and eliminated, and the utilization rate of the cache space is effectively improved.

The submerged staged combustion injector for the small molecule gel oxidizing agent comprises a cylindrical inlet, a conical section, a streaming section, a straight section, an axial connecting section and a radial connecting section which are connected in sequence, the conical section, the streaming section and the straight section are each of a double-layer structure. The outer walls of the conical section, the streaming section and the straight section are sequentially connected to form an outer wall, and the two ends of the outer wall are connected with the cylindrical inlet and the axial connecting section respectively; the inner walls of the conical section, the streaming section and the straight section are sequentially connected to form an inner wall, one end of the inner wall is closed, and the other end is connected with the outer wall; an oxidant chamber is formed by a cavity between the outer wall and the inner wall and the cylindrical inlet; a cavity enveloped by the inner wall forms a secondary fuel combustion chamber; a fuel gas channel is arranged in the conical section and is communicated with the fuel secondary combustion chamber; and an injection hole array is formed in the inner wall. The residence time and the turbulence degree of an oxidizing agent and fuel in the combustion chamber are increased, staged combustion is achieved, and the combustion efficiency of the engine is improved.

The invention discloses an air-cooled vortex control stabilizer, comprising an oil supply pipe, an evaporator pipe, a U-shaped gradually expanding blunt body and a stabilizer wall surface, wherein the oil supply pipe and the evaporator pipe are arranged in the U-shaped gradually expanding blunt body, the evaporator pipe is connected to the rear end wall and is provided with a mixed gas outlet hole, the air inlet nozzle is located on the arc front wall and is discretely arranged along the annular direction of the air-cooled vortex control stabilizer, the air inlet nozzle is connected to the evaporator pipe through an air inlet duct, the side wall of the air inlet duct is provided with an oil inlet connected to the oil supply pipe, the stabilizer wall surface is arranged on both sides of the rear end wall and includes a first wall surface and a second wall surface, each side wall surface is an annular groove structure composed of an inner wall surface and an outer wall surface, the opening is located on both sides of the rear end wall and is directly facing the incoming flow, a plurality of cooling holes are provided on the inner wall surface, a first air inlet hole with a larger aperture than the cooling hole is provided on the inner wall surface of the first wall surface close to the rear end surface, and the mixed gas outlet hole of the evaporator pipe faces the second wall surface. The invention can maintain flame stability and device durability when a high temperature rise phenomenon occurs in an afterburner.

The invention relates to the technical field of milling cutters, in particular to a wind driven generator rotor magnetic steel ladder groove machining milling cutter which comprises a milling cutter disc, a driving shaft and a first conveying unit. A plurality of groups of mounting grooves are formed in the outer edge of the milling cutter disc, and a cutting assembly is arranged in each group of mounting grooves. The cutting assembly comprises a cutting edge, the cutting edge is provided with a cutting face, and the cutting face is provided with a cutting end used for executing the cutting action. And when the driving shaft drives the milling cutter disc to axially rotate around the milling cutter disc, the cutting end starts deep groove machining immediately. After the cutting fluid in the containing cavity flows into the first flow channel, the first conveying unit can guide the cutting fluid to stably flow to the cutting end, so that the cutting end and the area, making contact with a workpiece, of the cutting fluid are efficiently cooled and lubricated. Therefore, through guiding of the first conveying unit, the flowing path of the cutting fluid on the cutting face is prolonged, the residence time of the cutting fluid on the cutting face and the cutting end is prolonged, efficient cooling and lubricating are achieved, the cutting temperature is remarkably reduced, and heating and abrasion of the cutting edge are reduced.

The application provides a kind of superparamagnetic micro-particle based on microbial template, the mass ratio of cobalt element and iron element in superparamagnetic micro-particle is (1-5):1;The content of iron element in superparamagnetic micro-particle is 18-75 mg / g, and the content of cobalt element is 18-375 mg / g.Simultaneously, the application also provides the preparation method and application of the superparamagnetic micro-particle.The superparamagnetic micro-particle can effectively load antigen protein, and then induce the body to produce long-term, efficient specific immune response, improve the protection ability, and can be applied to the preparation of vaccine adjuvant.

The invention discloses an itching-relieving gel containing 3-hydroxydecanoic acid microemulsion and a preparation method thereof, the gel combines natural itching-relieving components 3-hydroxydecanoic acid and peppermint essential oil, the natural itching-relieving components 3-hydroxydecanoic acid and peppermint essential oil are prepared into a microemulsion form, nanoscale liquid drops are compounded with a skin-promoting absorbent, and the gel is slowly released, so that the itching-relieving effect is achieved. Therefore, the percutaneous absorption efficiency is improved, the residence time in the skin is prolonged, and a lasting itching relieving effect is realized; 3-hydroxydecanoic acid exerts an itching relieving effect through an anti-inflammatory effect, blocking of an itching signal channel and reduction of mast cell degranulation, and the itching relieving gel is stable at room temperature, convenient to use and suitable for relieving mosquito bites and skin itch problems caused by histamine or non-histamine substances and the like.

The invention relates to the technical field of carbon dioxide capture, in particular to a porous medium spiral microchannel carbon dioxide adsorbent carrier. Comprising a carrier body; the carrier body is of a honeycomb structure, a plurality of airflow micro-channels spirally extending in the axial direction are formed in the carrier body, the screw pitch of each airflow micro-channel is 5-7 cm, and the aperture of each airflow micro-channel is 5-10 mm; a carbon dioxide adsorbent is loaded in the carrier body. The porous characteristic of the carbon dioxide adsorbent carrier can increase the contact area of the adsorbent and gas, and the carbon dioxide adsorption efficiency is improved. And the spiral structure can prolong the gas flow path and strengthen the rotational flow effect, so that the adsorbent is more fully contacted with the gas, and meanwhile, the design of the spiral channel is beneficial to uniform transfer of heat and improvement of the desorption efficiency.

The invention discloses a buffer flow control and replacement management method and system supporting software marking, and the method comprises the steps: setting a programmable register at a software layer for software marking, and transmitting the software marking to a cache controller; a preceding-stage flow control arbiter receiving mark is added at the front end of a cache controller, the flow control priority score of each memory access request is dynamically calculated, and arbitration scheduling is carried out; a decoupling replacement strategy fusion engine is arranged in a cache controller, and a software mark and a hardware prediction replacement strategy are fused; consistency state co-processing is added in the cache replacement process, performance data during operation are collected through a performance monitoring module, a performance monitoring feedback path is provided and fed back to software, and a software mark in a programmable register is dynamically adjusted. According to the invention, through the data flow attribute marking, the preceding-stage flow control arbitration mechanism, the replacement strategy fusion engine and the consistency collaboration unit with software and hardware collaboration, the fine management of the data residence behavior in the cache system can be realized.

The application provides a front ring gas supply device for an ion thruster discharge chamber, comprising a gas supply ring groove and a gas supply ring cover, the gas supply ring groove and the gas supply ring cover cooperate to form a cavity, the cavity comprises a first cavity and a second cavity, a plurality of through holes are arranged on the gas supply ring cover, the first cavity and the second cavity are communicated through the through holes, the first cavity is communicated with a gas supply pipeline, and the second cavity is communicated with a discharge chamber cavity. By adopting the two-stage cavity buffer gas supply mode, the distribution of the working gas in the ion thruster discharge chamber is more uniform, the spatial uniformity of the plasma density in the ion thruster is improved, and then the flatness of the extracted ion beam is improved, which is beneficial to prolonging the service life of the ion thruster; by adopting the oblique gas injection mode, the axial velocity of the gas is reduced, the residence time of the working gas in the ion thruster discharge chamber is prolonged, and the working gas utilization rate of the ion thruster is improved.

The invention belongs to the technical field of energy storage equipment, and discloses an energy storage device, which comprises an energy storage device main body, a heat dissipation cabinet and a silencer, one side of the energy storage device main body is provided with a heat dissipation chamber, and the heat dissipation chamber is provided with a first mounting port; the silencer comprises an air guide piece and a silencing shutter, the silencing shutter comprises a frame, a plurality of blades and a reinforcing structure, the blades are connected with the reinforcing structure, the air guide piece is located between the heat dissipation cabinet and the frame, and the two sides of the air guide piece are tightly attached to the heat dissipation cabinet and the frame respectively so that an air guide channel can be defined between the air outlet and the blades; the air guide piece, the frame and the reinforcing structure are all filled with sound absorption pieces. The silencing shutters are matched with the air guide pieces, the space utilization rate of the silencer is increased, the size of the silencer is reduced, and the energy efficiency and the heat dissipation efficiency of the whole machine are improved.

The utility model relates to the field of kitchen utensils, and particularly discloses a pot support and a kitchen range. The energy gathering ring comprises an inner peripheral wall and an outer peripheral wall, the cross section of the inner peripheral wall is in a straight plate shape, and the cross section of the outer peripheral wall is in an arc shape protruding towards the outer peripheral side of the energy gathering ring. And the inclination angle of the inner peripheral wall relative to the vertical direction is not more than 20 degrees. The pot support is provided with the inner peripheral wall extending in the roughly vertical direction and the arc-shaped outer peripheral wall, so that a vortex area is formed near the roughly vertical inner peripheral wall on the inner side, the energy gathering effect is improved, and the effect of preheating secondary air in advance is achieved.

The application discloses a kind of microreactor for carbon dioxide conversion in air, including reaction cavity, and reaction cavity shell is made of light transmission glass;Multiple sets of catalyst carrier assemblies are equipped in reaction cavity cavity, along material flow direction, adjacent catalyst carrier assemblies are staggered in turn and form baffle passage;Each set of catalyst carrier assembly is composed of transversely arranged catalyst carrier and longitudinally arranged catalyst carrier;Catalyst carrier is foam ceramic carrier, and catalyst is loaded on carrier, and foam ceramic carrier is porous structure.The application limits reactor, can realize CO2 on foam ceramic carrier in reactor inside sufficient mass transfer and heat transfer, and transversely and longitudinally arranged carrier can increase the residence time of CO2 in foam ceramic pore, and transversely and longitudinally arranged carrier can expose more active sites of catalyst, so that the catalytic efficiency of entire reaction is improved, realizes CO2 100% conversion rate, and also can realize 100% conversion of CO2 in air.

This invention discloses a thermosensitive hydrogel loaded with anti-inflammatory small molecules, its preparation method, and its applications, relating to the field of biomedical technology. It comprises mesenchymal stem cell-derived exosomes loaded with anti-inflammatory small molecules, sodium hyaluronate, a thermosensitive hydrogel matrix, and an enzymatic debridement agent. This invention encapsulates papain with enzymatic debridement function, anti-inflammatory small molecules, and mesenchymal stem cell-derived exosomes as the main body of repair activity within a thermosensitive hydrogel matrix composed of a fixed ratio of poloxamer 407 and poloxamer 188. This composition is liquid at low temperatures, making it easy to apply, and transforms in situ into a semi-solid gel upon contact with oral temperature, achieving wound adhesion and long-term residence. Papain is used for initial debridement, creating conditions for subsequent repair; the bioaffinity between the anti-inflammatory small molecules and exosomes enables controlled and sustained release of the active ingredients; and finally, mesenchymal stem cell-derived exosomes promote wound repair.

The invention discloses an inclined jet circulation interstage combustion chamber and low-pressure turbine guide vane coupling test device, and relates to the technical field of aero-engine experiment devices, the inclined jet circulation interstage combustion chamber and low-pressure turbine guide vane coupling test device comprises a combustion chamber test section and a guide vane test section, and inner and outer casings of the guide vane test section and the combustion chamber test section are fixedly connected through flanges and screws; the other end of the guide vane test section is fixedly connected with the tail gas section through a flange and a screw. According to the inclined-spraying circulation interstage combustion chamber and low-pressure turbine guide vane coupling test device, the oil spraying piece extends into the flame tube at a certain angle to supply oil, and the inclined holes are formed in all parts of the flame tube to supply air, so that the residence time of fuel in the combustion chamber is prolonged, the combustion efficiency is improved, and the design concept of the interstage combustion chamber of pneumatic organization is realized; and a temperature sensor, a pressure sensor and a flue gas analysis device are arranged for data collection, and the method has important significance for analyzing related performance indexes of coupling of the oblique-spraying circulation interstage combustion chamber and the low-pressure turbine guide vane.

The application relates to the technical field of traditional Chinese medicine preparations, and specifically discloses a wet eczema external washing formula and a preparation method thereof. The wet eczema external washing formula is composed of three raw medicinal materials, namely, Sophora flavescens, Fructus Mume and Smilax glabra. The preparation method is as follows: low-temperature segmented extraction of Fructus Mume is performed to obtain an acidic extract and residues; a part of the acidic extract is used to pretreat the residues, and then enzymolysis is performed to obtain a directional polysaccharide extract; the remaining acidic extract is used to extract Sophora flavescens and Smilax glabra; the extract and the polysaccharide extract are combined at a controlled speed to construct a non-covalent compound; after nitrogen protection, segmented concentration and low-temperature curing and shaping, the product is obtained through filling, sterilization and the like. The wet eczema external washing formula can be used for wet eczema external washing treatment, active ingredients can form a sustained-release colloid network, the skin residence time is prolonged, and the antipruritic and anti-inflammatory effects are long-lasting. In the preparation method, no exogenous acid and alkali and no chemical stabilizer need to be introduced, resource closed-loop utilization in the formula is realized, the dissolution rate of active ingredients and the stability of the preparation are high, the process controllability is good, and the preparation method is suitable for industrialized production.