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57results about How to "Prevent crystallization" patented technology

Structure for preventing crystallization of liquid discharge main pipe of crude foil engine

The utility model discloses a structure for preventing crystallization of a liquid discharging main pipe of a crude foil engine, which comprises an anode tank and a liquid feeding distributor arranged on the lower side of the anode tank, the anode tank is connected with a backflow main pipe through a backflow branch pipe, and the liquid feeding distributor is connected with a liquid discharging branch pipe communicated with the liquid discharging main pipe. The backflow main pipe and the liquid discharging main pipe are both communicated with the dirty liquid tank, a control valve is installed on the liquid discharging branch pipe, an anti-crystallization communicating pipe is arranged between the backflow branch pipe and the liquid discharging main pipe in a communicating mode, and the end, connected with the backflow branch pipe, of the anti-crystallization communicating pipe is higher than the end, connected with the liquid discharging main pipe, of the anti-crystallization communicating pipe. And by arranging the anti-crystallization communicating pipe, the fluid in the backflow branch pipe can be drained into the liquid discharging main pipe, so that the liquid discharging main pipe is always flushed by the fluid when the equipment normally operates, and the crystallization condition is avoided.
Owner:JIUJIANG AMBER NEW MATERIALS CO LTD +1

A freeze-resistant molten core bead, its preparation method and its application

ActiveCN117652592Bprevent crystallizationSolve the fragileAdhesiveGlycerol
This application relates to the field of food processing technology, specifically disclosing a freeze-resistant lava-filled popping bead, its preparation method, and its application. The freeze-resistant lava-filled popping bead comprises an inner core liquid, a popping bead wall material liquid, a curing liquid, and a storage liquid. The inner core liquid comprises the following raw materials in parts by weight: 80-120 parts white sugar, 3-6 parts calcium salt, 30-60 parts edible alcohol, and 41-68 parts water. The preparation method is as follows: white sugar, calcium salt, edible alcohol, and water are mixed until dissolved to obtain the inner core liquid; alginate, glycerin, pectin, and acidic substances are mixed with water until dissolved to obtain the popping bead wall material liquid; calcium salt, chitosan, and water are mixed evenly to obtain the curing liquid; fructose syrup, edible alcohol, and water are mixed evenly to obtain the storage liquid; the inner core liquid is added dropwise to the popping bead wall material liquid for a coating reaction; excess adhesive is filtered out and washed away; the bead is then placed in the curing liquid and the storage liquid in sequence; after packaging and high-temperature sterilization, the finished product is obtained. It has the advantage of bursting and lava-filled core when eaten frozen.
Owner:QINGDAO BRIGHT MOON SEAWEED GROUP

Beaker placing tray for battery tester

ActiveCN224203230USolve the problem of space clutterReduce risk of capsizingElectrical testingMeasurement instrument housingElectrical batteryTester device
The utility model discloses a beaker placing tray for a battery tester, which belongs to the technical field of battery testing equipment and comprises a base, a plurality of accommodating grooves are uniformly distributed at the top of the base along the circumferential direction, and elastic clamping mechanisms are arranged on the inner walls of the four sides of each accommodating groove. A beaker is positioned through four-direction synchronous clamping, one side of the base is rotationally connected with an openable cover plate through a hinge piece, a plurality of sealing assemblies are installed on the bearing face of the cover plate, the sealing assemblies and the corresponding containing grooves form an axial alignment relation, and when the device is closed, multi-stage sealing protection is formed. Through structure optimization, stable positioning of the beaker, multi-stage sealing protection and ordered cable management are realized.
Owner:ANQING XUANDA HYDROGEN ENERGY TECHNOLOGY CO LTD

A health-care patch for treating neck-shoulder-lumbar-leg pain and a preparation method thereof

PendingCN122251505Areduce polarityavoid separabilityAnthropod material medical ingredientsAntipyreticNeck shoulderPharmaceutical drug
The present application relates to the technical field of external use patch, disclose a kind of neck shoulder waist leg pain health care patch and its preparation method, the health care patch includes backing layer, ointment layer and anti-adhesion release layer;Ointment layer raw material includes: traditional Chinese medicine extract flow leaching paste, L- (+) -tartaric acid, PVP K30, PEG-400, ternary eutectic solvent, polyacrylate pressure sensitive adhesive matrix and ultrafine medicinal powder.Preparation, after flow leaching paste, tartaric acid etc. are mixed, gel precursor is formed by vacuum dewatering and dealcoholization, swelling is added again with eutectic solvent, and then mixed with pressure sensitive adhesive matrix and medicinal powder high shear, finally coating solidification.The present application constructs physical crosslinking gel network in colloid interior and promotes effective component acid-base salt formation, effectively avoids polar component crystallization precipitation, reduces the skin irritation caused by drug burst release, simultaneously improves the cohesion of ointment, realizes long-acting smooth drug release.
Owner:HENAN RUNLING PHARM CO LTD

A confinable graft network anti-freeze hydrogel, and a preparation method and application thereof

This invention provides a confined grafted network antifreeze hydrogel, its preparation method, and its applications. The preparation method of the hydrogel includes: firstly, acetalizing and crosslinking polyvinyl alcohol and glutaraldehyde under acidic conditions to obtain a polyvinyl alcohol-glutaraldehyde hydrogel with a three-dimensional network structure; then, immersing it in a solution containing acrylic monomers and the initiator cerium ammonium nitrate, and heating it to allow the acrylic monomers to graft and polymerize onto the backbone, forming a confined grafted network structure. The hydrogel has a freezing temperature as low as -31.58℃, an elongation at break greater than 300% at -30℃, a tensile strength of approximately 5.6 MPa, and an electrical conductivity of approximately 0.03 S / m, and exhibits a stable and sensitive resistance response to tensile strain. This invention does not require the addition of exogenous small molecule antifreeze agents, and can maintain excellent mechanical flexibility, high strength, and stable conductive sensing performance at low temperatures. It is suitable for flexible strain sensors and wearable electronic devices, and has broad application prospects, especially in cold or extreme low-temperature environments.
Owner:CHONGQING UNIV OF TECH

Aluminum chloride-based composite flocculant and preparation method thereof

The application discloses a composite flocculant based on aluminum chloride and a preparation method thereof, and belongs to the technical field of flocculant preparation, and is used for solving the technical problem that the stability and flocculation performance of the flocculant need to be further improved in the prior art; the branched polymer containing polycarboxyl groups is prepared by the reaction of tris(2-aminoethyl)amine and pyromellitic dianhydride, and the taurine groups are introduced to obtain the sulfobranched polycarboxyl polymer; the titanium phosphorus silicon aminopropyl composite is synthesized by using the sol-gel method, and the inorganic-organic network combination is realized; the polyimidazolium-hydroxy ether is obtained by the reaction of imidazole, epichlorohydrin and bisphenol A diglycidyl ether; the composite flocculant is formed by the reaction of the three under the acidic condition, the composite flocculant combines the polycarboxyl groups, the sulfonic acid groups, the imidazolium groups and the inorganic-organic skeleton, has high charge density, good adsorption and bridging performance, can rapidly form stable flocs, and can effectively remove the suspended particles and organic pollutants in water.
Owner:WUXI BISHENG WATER TREATMENT AGENT CO LTD

A calcium and magnesium ion crystallization inhibiting filter mechanism

This utility model discloses a calcium and magnesium ion crystallization inhibition filtration mechanism, including a tank. A first filter frame and a second filter frame are arranged inside the tank. A rotating rod passes through the center of the top of each filter frame, and the rotating rod is rotatably connected to the first and second filter frames respectively via bearing seats. Two first support frames and two second support frames are fixedly connected to the surface of the rotating rod. A brush strip is provided on the side wall of the first support frame. This utility model improves the filtration effect by setting two layers of filter frames with gradually decreasing gaps inside the tank. Simultaneously, the brush strips can continuously scrub the outer wall of the filter screen to remove attached crystalline impurities. The extrusion cylinder periodically extrudes the filter screen, causing the filter screen pores to undergo dynamic deformation of expansion and contraction. This not only breaks down the microcrystalline structure through the rubbing of the filter screen fibers, but also uses the water flow during pore expansion to further clean residual impurities inside the filter screen, effectively extending the filter screen's service life and reducing maintenance frequency.
Owner:QINGDAO LANGBANG WATER SUPPLY EQUIP CO LTD

Electrophotographic photoreceptor, process cartridge, and image forming apparatus

PendingEP4379468A4excellent crack resistance and sensitivity characteristicprevent image defectsTesting MethodsMechanical engineering
An electrophotographic photosensitive member includes at least one photosensitive layer on which a first photosensitive layer disposed on an outermost side thereof. The first photosensitive layer contains a charge generating material, a binder resin including a polyarylate resin with repeating units (1), (2), (3), and (4), an electron transport material, and a hole transport material. The electron transport material includes a compound represented by formula (10), (11), or (12). The hole transport material includes compounds represented by formulas (21) and (22): A percentage content of a number of repeats of the repeating unit (3) to the total number of repeats of the repeating units (1) and (3) is greater than 0% and less than 50%. A percentage content of a number of repeats of the repeating unit (4) to the total number of repeats of the repeating units (2) and (4) is at least 35% and less than 70%.
Owner:KYOCERA DOCUMENT SOLUTIONS INC

Multi-temperature zone dimethyl sulfoxide fractional storage device

ActiveCN224511832Ueasy to moveHave a thermal insulation effectHeat conservationMechanical engineering
The utility model relates to dimethyl sulfoxide storage technical field, specifically is multi -temperature zone dimethyl sulfoxide grading storage device, including the heat preservation bucket, the heat preservation bucket is fixedly sleeved with annular outer heat conduction plate and inner heat conduction plate, the heat preservation bucket, outer heat conduction plate and inner heat conduction plate between respectively form normal temperature area, low temperature area and heat preservation area, the heat preservation bucket top seal has the sealing plate that closes normal temperature area, low temperature area and heat preservation area, and the bottom surface of heat preservation bucket is set up respectively with normal temperature area, low temperature area and heat preservation area one -to -one corresponding inlet pipe and outlet pipe on sealing plate, inlet pipe and outlet pipe are controlled through the valve, the use of the application can make that the stock solution is low temperature area heating, working liquid is properly heat preservation area heating, and heat preservation area is arranged in the middle, effectively avoid the crystallization phenomenon caused by the temperature of heat preservation area too low, can utilize the rotation of inner vertical pipe rotation drive pole to rotate simultaneously, further prevent crystallization recovery liquid crystallization.
Owner:山东胜华国宏新材料有限公司

A flake caustic machine having reduced crystallization

ActiveCN224641016Uprevent crystallizationEasy to scrape off
The utility model belongs to piece alkali machine technical field, concretely relates to a piece alkali machine with the function of reducing crystallization alkali, including alkali tank, the top fixed coupling of alkali tank has two bearing seats, the inside of each bearing seat is all through bearing installation has the pipe of turning, the pipe of turning between two is commonly fixedly connected with the drum of turning, and the drum of turning is communicated with the pipe of turning and is set up, the top of drum of turning is provided with the current -collecting box, the left and right sides of current -collecting box are commonly fixedly connected with cooling pipe, cooling pipe penetrates pipe of turning and drum of turning and is connected with pipe of turning through sealing bearing. By setting up electric heating rod and temperature sensor in the current -collecting box for cooling water storage, when the water temperature of cooling water is low, the electric heating rod carries out temperature rise to cooling water, inhibits the excessive crystallization of lye on the surface of drum of turning due to the temperature is too low, and is scraped down conveniently by scraper.
Owner:新疆圣雄氯碱有限公司 +1

Heated commercial vehicle urea pressure sensor

The utility model provides a kind of heating type commercial vehicle urea pressure sensor, including shell, outer cover, detection core, internal support and circuit board, the detection diaphragm of detection core bottom is sealed communication with urea delivery pipe bottom of shell, and urea delivery pipe is provided with electric heating coil along its length direction;Circuit board is set in the detection core top by internal support, and with detection core and circuit board electric connection.The utility model passes through integrated electric heating coil and outside internal temperature control switch, environmental temperature control switch, effectively solve the crystallization problem of commercial vehicle urea pressure sensor under low temperature environment;And its structure design is compact and reliable, easy to produce and maintain, applicable to various commercial vehicle type, with higher market application value.
Owner:HUBEI BANGNA ELECTRONIC TECH CO LTD

Water treatment softening apparatus based on induced crystallization

PendingCN122324953ARotate at low speed and constant speedavoid churnWater softeningFiltration
This invention relates to the field of water treatment technology and discloses a water softening device based on induced crystallization, including a tank. A filtration and cleaning mechanism for filtering and cleaning crystals is located at the rear end of the tank, and a stirring and cleaning mechanism for cleaning the inner wall of the tank and conveying crystals is located at the front end of the tank. The crystal conveying direction of the stirring and cleaning mechanism is coaxially aligned with the crystal filtration inlet of the filtration and cleaning mechanism, and the stirring speed of the stirring and cleaning mechanism is adapted to the filtration rotation speed of the filtration and cleaning mechanism, achieving continuous crystal conveying and integrated filtration. A flexible reciprocating scraper is installed inside the filter screen to achieve online descaling without stopping the machine, solving the problem of low automation in existing equipment for crystal discharge. A 1:2 meshing ratio between the semi-trapezoidal gear and the trapezoidal gear enables low-speed uniform rotation of the filter tank, preventing crystal seed loss with the filtrate and solving the problem of crystal seed loss in existing equipment.
Owner:SHANDONG LASHAN ENVIRONMENTAL PROTECTION TECH CO LTD

Novel plug valve

The utility model provides a novel plug valve, and relates to the technical field of valves. Comprising a valve seat made of PEEK or stainless steel materials, and a cock is arranged in the valve seat. A lining is fixedly nested in the valve seat; the lining is located on the periphery of the rotary plug. A 2507 stainless steel sealing cover is arranged at the upper end of the valve seat; the upper end of the valve rod penetrates through the sealing cover, the middle of the valve rod is in sealing connection with the sealing cover, and the lower end of the valve rod is connected with the cock; and the sealing surface of the sealing cover is made of stellite alloy steel. A cavity is eliminated through the lining, crystal accumulation is avoided, two-way sealing supports any flow direction, materials are resistant to corrosion and high temperature, the problem of urea crystal accumulation in the ammonium carbamate solution environment is avoided, and normal operation of the valve is guaranteed.
Owner:YUAN SPECIAL VALVE DEV (SHENZHEN) CO LTD

Hydrophobic self-cleaning antireflection coating liquid and preparation method thereof

The invention discloses a hydrophobic self-cleaning anti-reflection coating liquid and a preparation method thereof, and aims to overcome the defects in the aspects of hydrophobicity, weather resistance and environmental friendliness although an existing anti-reflection film technology can reduce the optical reflectivity. Aiming at the problems, the molecular-level synergistic effect among the components is realized through the following innovative combination, so that the limitation of the traditional technology is broken through: through the unique combination and proportion of chitosan, long-chain alkyl silane and perfluorosilane as well as glutamine and ethyl acetate, 'high anti-reflection (llt), which cannot be realized by a single component, is converted into high anti-reflection (llt), high anti-reflection (llt), high anti-reflection (llt), high anti-reflection (llt), high anti-reflection (llt) and high anti-reflection (llt); 2.5%) + super-hydrophobic (gt; and the trinity performance of environmental protection (formaldehyde-free) is realized.
Owner:FUZHOU UNIV

Sodium-ion battery electrolyte with flame-retardant function, preparation method and application thereof

ActiveCN116130767BImprove thixotropyImprove liquidity
The application discloses a sodium-ion battery electrolyte with a flame-retardant function and a preparation method and application thereof, and comprises the following components in parts by weight: 80-100 parts of a solvent, 18-26 parts of a sodium salt and 1-10 parts of an enhanced flame retardant; the preparation raw materials of the enhanced flame retardant comprise modified nano silicon dioxide; the preparation raw materials of the modified nano silicon dioxide comprise nano silicon dioxide, tannic acid and polyethylene imine. The application provides the sodium-ion battery electrolyte with the flame-retardant function and the preparation method and application thereof; the nano silicon dioxide has good thixotropy, fluidity and thickening property; the organic solvent can improve the dispersibility of the nano silicon dioxide in the electrolyte, makes the electrolyte more stable, and has excellent flame-retardant property.
Owner:HUNAN FARNLET NEW ENERGY TECH CO LTD

Air-cooled and water-cooled integrated system condensing device

The utility model discloses air -cooled water -cooled integrated system condensing device relates to radiator technical field, and the utility model discloses including loading board, the upper portion of loading board is equipped with condensing mechanism, is used for the quick cooling of equipment, and condensing mechanism includes: refrigeration subassembly includes the circulating pump fixed mounting in loading board top one side, and the bottom one side mounting of loading board has cold water row, and cold water drain pipe output and input all with the cooling water output and input of circulating pump interconnect, the circulation of cooling liquid between cold water row and radiating fin is driven through circulating pump, directly absorbs equipment heat, and through the cooperation of semiconductor refrigeration piece and centrifugal fan, and semiconductor refrigeration piece is actively refrigerated to its lower part air, and centrifugal fan then will produce cold air forcedly and blow to radiating fin, can high -efficiently and quickly cool the cooling liquid, has improved the heat dissipation efficiency and cooling speed of whole equipment significantly, has guaranteed the stability of high -power equipment operation.
Owner:SHENZHEN HUAJING TEMPERATURE CONTROL TECH CO LTD

A sedimentation-type mineral processing reagent synthesis reactor

This utility model relates to the technical field of non-ferrous metal flotation reagent synthesis reaction equipment. It provides a sedimentation-type mineral processing reagent synthesis reactor, including a tank body. A motor is installed at the top of the tank body, and the motor is connected to a stirring shaft via a gear set. The tank body is divided into an upper chamber and a lower chamber by a filter baffle. The side wall of the tank body has a feed port and a discharge port communicating with the upper chamber, and the bottom of the tank body has a slag discharge port communicating with the lower chamber. Heating wires are arranged circumferentially on the inner wall of the upper chamber. The tank body has a heating box for heating the heating wires. The heating wires are sequentially covered with a ceramic layer and an anti-vortex layer. The tank body is divided into a reaction zone in the upper chamber and a sedimentation zone in the lower chamber. The crystals naturally settle into the lower chamber, while the clear liquid remains in the upper chamber. The heating wires arranged circumferentially on the inner wall of the upper chamber, covered with a ceramic layer and an anti-vortex layer, evenly transfer the heat generated by the heating wires to the inner wall of the tank body, changing the material flow direction, reducing the dead zone of stirring, and making the temperature and concentration distribution more uniform.
Owner:SICHUAN HUILI ZINC & PLUMBUM COMPANY

A high-temperature resistant downhole emulsion explosive and its preparation method

This invention discloses a high-temperature resistant downhole emulsion explosive and its preparation method, belonging to the field of emulsion explosive technology. The emulsion explosive comprises an aqueous phase material, an oil phase material, and a sensitizer, with a mass ratio of (88-96):(4-12):(0.8-2.0). The aqueous phase material, by mass parts, includes the following raw materials: 70-80 parts ammonium nitrate, 4-6 parts sodium nitrate, 5-8 parts urea, 0.1-0.6 parts chitosan quaternary ammonium salt, and 10-20 parts water. The oil phase material, by mass parts, includes the following raw materials: 50-70 parts composite oil phase and 20-40 parts composite emulsifier, which includes Span80 and polyisobutylene succinimide derivatives. This invention involves adding the aqueous phase material to the oil phase material, adding the sensitizer to the emulsion matrix formed by emulsification, and stirring to prepare the emulsion explosive. The emulsion explosive provided by this invention is suitable for use in deep well high-temperature environments and exhibits good high-temperature stability.
Owner:HONGDA CIVIL EXPLOSIVES GRP CO LTD

Three-way flush shut-off valve of ammonia carbon analyzer

This utility model discloses a three-way flushing shut-off valve for an ammonia-carbon analyzer, comprising a valve body, a main valve core, and a three-way flow channel disposed within the valve body, each communicating with a medium inlet flow channel and two medium outlet flow channels respectively. A main valve seat is provided on the flow channel communicating with the medium inlet flow channel. The lower valve head of the main valve core is located in the main valve seat, and its upper end passes through the upper valve cover and connects to the main actuator. Secondary valve assemblies for connecting to manual control mechanisms are provided on the flow channels communicating with the two medium outlet flow channels respectively. The medium inlet flow channel is mounted on the lower valve body, and a guide hole communicating with the medium inlet flow channel is opened at the top of the lower valve body. A hollow guide post with a flow channel hole is provided at the lower end of the valve head of the main valve core, slidingly engaging with the guide hole. The lower valve body and the upper valve cover are detachably connected to the valve body via bolts and nuts. This utility model features a simple structure, easy disassembly, easy maintenance, good sealing effect, smooth valve operation, and long-term safe online operation.
Owner:WUHUAN ENG

Solid imrecoxib preparation and preparation method thereof

PendingCN121846036AActive ingredients are stableNot easily degradedAntipyreticAnalgesicsPharmacy medicineDrugs preparations
The invention discloses an imrecoxib solid preparation and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations, the solid preparation comprises the following components by mass: 15-25% of imrecoxib, 10-40% of pea maltodextrin, 10-40% of Soluplus, 1-3% of poloxamer, 10-30% of a filler, 10-20% of a disintegrating agent, 0.8-1.2% of a flow aid and 0.8-1.2% of a lubricant. Through synergistic interaction of triple carriers, Soluplus inhibits drug crystallization by means of hydrogen bonds and promotes dispersion; the poloxamer reduces the surface tension and improves the dispersity and the dissolution rate; the pea maltodextrin plays an anti-oxidation role, improves the sphericity, fluidity and stability of the particles, and is low in cost. Aiming at the difficulties that imrecoxib is low in solubility, easy to oxidize and the like, medicine dissolution is remarkably improved, related substances are more stable, and both process robustness and cost control are considered.
Owner:JINAN LIMIN PHARMA

High-efficiency acid mist absorption tower and absorption method

PendingCN122682400Areduce cloggingRemove in time
The present application belongs to the technical field of industrial waste gas purification, and particularly relates to a high-efficiency acid mist absorption tower and an absorption method, which comprises a tower body, the tower body is respectively provided with a gas inlet, a gas outlet, a liquid inlet and a liquid outlet, and the tower body is provided with a first spraying system, a second spraying system and a plurality of cleaning assemblies; the first spraying system and the second spraying system are rotatably installed in the tower body through an eccentric wheel assembly, the cleaning assemblies are detachably connected to the inner wall of the tower body, and the plurality of cleaning assemblies are respectively located below the first spraying system and the second spraying system; the beneficial effects of the present application are as follows: the eccentric wheel assembly is used for driving the first spraying system and the second spraying system to perform eccentric rotary motion, the eccentric rotary motion causes the lye inside the spraying system to form turbulent flow and inhibit crystallization; meanwhile, the nozzles of the first spraying system and the second spraying system sequentially contact the cleaning assemblies below during the eccentric rotation, thereby realizing online cleaning of the nozzle crystallization and impurities.
Owner:SHANDONG YUXIAO ZIRCONIUM & HAFNIUM NEW MATERIALS CO LTD

An all-electric fusion vertical kiln basalt fiber melting channel

This invention proposes a fully electro-melting vertical kiln basalt fiber melting channel, including an electro-melting control system and a furnace body. The furnace body, from one end to the other, sequentially includes a melting zone, a clarification and homogenization zone, and a working zone. The bottom surfaces of the melting zone and the clarification and homogenization zone are at the same height, while the bottom surface of the working zone is located above the bottom surface of the clarification and homogenization zone. The volume of the working zone is smaller than that of the clarification and homogenization zone, which in turn is smaller than that of the melting zone. A spinneret for fiber drawing is provided on the bottom surface of the working zone. Electrodes are respectively installed in the melting zone, the clarification and homogenization zone, and the working zone, and each electrode in each zone is connected to one of the electro-melting control systems. This invention can reduce production energy consumption, improve production efficiency, enhance the processing effect of basalt melt, and ensure product quality.
Owner:新疆沃宇纺织新材料有限公司 +1

Urea tank and vehicle with same

The invention provides a urea tank and a vehicle with the same, and relates to the technical field of vehicle tail gas treatment. The urea tank comprises a shell, the shell is provided with a containing cavity, and the containing cavity is used for storing urea liquid; the filtering assembly at least comprises a base and a filter, the base is connected with the shell, the filter at least comprises a filter shell, the filter shell is connected with the base, a filtering cavity is defined by the filter shell, and the filtering cavity is communicated with the containing cavity; the cooling assembly comprises a cooling pipeline and an inner cavity shell, the inner cavity shell is connected with the filter shell, the inner cavity shell extends in the circumferential direction of the filter shell, a filtering inner cavity is defined by the inner circle side of the inner cavity shell, a cooling cavity is defined by the outer circle side of the inner cavity shell and the filter shell, and the cooling pipeline extends into the containing cavity; one end of the cooling pipeline communicates with the cooling cavity, and the other end of the cooling pipeline communicates with engine cooling liquid. The problems that in a urea supply module, urea liquid cooling starting unfreezing efficiency is low, and reliability is poor are solved.
Owner:FAW JIEFANG AUTOMOTIVE CO

Non-chemically amplified multi-phenyl substituted adamantane derivative monomolecular resin photoresist, preparation method and application thereof

The application discloses a polyphenyl-substituted adamantane derivative monomolecular resin represented by formula IA and a preparation method and application thereof. The polyphenyl-substituted adamantane derivative monomolecular resin has good solubility in various polar solvents, is suitable for being made into a film, has a high decomposition temperature, and can well meet the requirements of a photoetching process.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Low-corrosion and low-temperature resistant marine water film forming foam extinguishing agent and preparation method thereof

PendingCN122499459ALimit self-aggregation behaviorprevent crystallization
The application discloses a kind of low corrosion low temperature resistant ship water film forming foam extinguishing agent and preparation method thereof.The extinguishing agent is made of deionized water, 1,2-propanediol, sodium lignosulfonate, alkyl polyglycoside, polyether modified heptamethyltrisiloxane, sodium molybdate dihydrate, methyl benzotriazole, xanthan gum and triethanolamine.In the system, sodium molybdate dihydrate and sodium lignosulfonate are coordinated and crosslinked to form a three-dimensional skeleton under the buffer of triethanolamine, and the hydrophobic segment of the surfactant is intercalated and anchored in the hydrophobic microzone inside the skeleton.During preparation, 1,2-propanediol is used to pre-disperse polymer powder, the crosslinking rate is controlled by adding triethanolamine in batches, and the surfactant is added after the system is cooled to complete the cold intercalation.The application limits the self-aggregation and precipitation of surfactant at low temperature, avoids the problem of polymer water core and excessive crosslinking, maintains the stability of rheology, and effectively reduces the corrosion of ship metal equipment.
Owner:HENAN YUANYANGFAN FIRE PROTECTION TECHNOLOGY CO LTD

The invention relates to 3apos; , 4apos; , 5apos; preparation method of-trifluoro-2-aminobiphenyl

The invention discloses a preparation method of 3 ', 4', 5 '-trifluoro-2-aminobiphenyl. A reactant I and a reactant II are used, a black phosphorus-palladium-carbon nitride ternary composite catalyst BPQDs-Pd-C3N4 is used as a bifunctional catalyst for coupling and hydrogenation, and an alcohol-water system is used as a common solvent; the preparation method comprises the following steps: adding a black phosphorus-palladium-carbon nitride ternary composite catalyst BPQDs-Pd-C3N4 into a reaction kettle, carrying out coupling in the same reaction kettle, switching to introduce H2 for hydrogenation, filtering and recovering the catalyst after the reaction is finished, concentrating the filtrate, and crystallizing to obtain 3 ', 4', 5 '-trifluoro-2-aminobiphenyl, and realizing the one-pot preparation of 3', 4 ', 5'-trifluoro-2-aminobiphenyl by adopting the prepared black phosphorus-palladium-carbon nitride ternary composite catalyst BPQDs-Pd-C3N4. Suzuki coupling and nitro hydrogenation are sequentially completed in the same reaction kettle, an intermediate does not need to be separated, the operation steps are simplified from two-pot two-filtration and solvent replacement to one-pot one-filtration, and the unit consumption of a solvent and the dosage of a catalyst are reduced by more than half.
Owner:HUBEI TAISHENG CHEM

Topological curved surface wave corrugated air conditioner high-efficiency heat exchange evaporation pipe

The utility model discloses a kind of topological surface corrugated air conditioner high-efficiency heat exchange evaporation pipes, including evaporation pipe body, the evaporation pipe body is provided with core pipe, the outside of core pipe is fixedly wrapped with heat shrink tube, topological surface is opened in the circumferential inner wall of evaporation pipe body, the inner annular surface of evaporation pipe body is fixedly provided with baffling mechanism. The topological surface corrugated air conditioner high-efficiency heat exchange evaporation pipe, hot medium impact on the narrow part of baffle block, the beam medium is divided into three groups, in turn through baffle block, and pass through multiple groups of baffle block and carry out turbulence blocking, the baffle block of isosceles trapezoidal will main stream be divided into upper center flow, wall flow and lateral flow, form complex vortex system structure behind baffle block, significantly enhance radial mixing;Shunting effect makes fluid constantly scour wall surface, destroy thermal boundary layer, reduce thermal resistance;When fluid passes through multiple groups of baffle block in turn, form disturbance, recovery and again disturbance cycle.
Owner:QINGDAO HONGYUAN REFRIGERATION TECHNOLOGY CO LTD

An on-line sampling device for sodium sulfonate production

The utility model relates to sulfonic acid sodium sampling technical field discloses a kind of sulfonic acid sodium generation online sampling device, including reaction kettle, the inside of the reaction kettle is provided with sampling cylinder, the inside of the sampling cylinder is provided with sampling pipe, the outer wall of the sampling pipe is fixedly connected with sampling valve, the outer wall of the sampling valve is fixedly connected with fixed seat, the inside of the fixed seat is fixedly connected with fixed block, the inside of the fixed block is slidably connected with slide bar, the outer wall of the slide bar is fixedly connected with convex block, the outer wall of the convex block is slidably connected with connecting plate, the inside of the connecting plate is fixedly connected with support shaft. In the utility model, through the cooperation between fixed block, slide bar, convex block, connecting plate, support shaft and convex frame, only need to press slide bar to install and dismount fixed seat and whole sampling structure, it is convenient to maintain whole sampling structure, and whole sampling structure can be completely cleaned in offline state, prevent scale.
Owner:HUBEI TIANAN DAILY CHEM CO LTD

A method for source reduction and resource utilization of incineration flue gas sodium-based deacidification and fly ash

PendingCN122702289Aachieve crystallizationprevent crystallization
The present application relates to fly ash resource technology field, the present application discloses a kind of incineration flue gas sodium-based deacidification and fly ash source head reduction resource method, comprising the following steps: S1: sodium bicarbonate is sprayed into flue gas passage to carry out preliminary deacidification, S2: system collects the desulfurization ash generated by reaction, S3: the fly ash collected into water washing dissolution link, fast filtration extract initial stage filtrate, S4: NH4HCO3 is added to the electrodialysis reaction system to carry out electrodialysis metathesis reaction, to obtain NaHCO3 Crystal, ammonium chloride solution or ammonium sulfate solution;Subsection dissolution is used, and initial stage filtrate is introduced into electrodialysis system, to avoid electrodialysis membrane crystallization while reducing electrodialysis processing load and realizing deacidification cycle.The high concentration brine obtained by the way of multi-stage countercurrent water washing system or dry-wet method fixed bed continuous water washing desalination of the end stage filtrate with reduced solid-liquid ratio is removed in vacuum evaporation device to obtain crystallization, so that the processing efficiency of vacuum evaporation device is greatly increased.
Owner:UNIV OF SCI & TECH BEIJING

Wet preparation device, wet preparation system and solar cell manufacturing production line

ActiveCN224653889Uprevent crystallizationLiquid
The application relates to a wet preparation device, a wet preparation system and a solar cell manufacturing production line. The wet preparation device comprises a wet machine table having a preparation tank, an inlet and outlet opening communicated with the preparation tank and used for feeding and discharging the cell piece on the top surface of the wet machine table, and two cover plates arranged along the width direction of the wet machine table and connected with the wet machine table, the two cover plates are matched and used for jointly opening or closing the inlet and outlet opening, the top surface of the cover plate is configured to gradually descend along the width direction of the wet machine table and from the center of the wet machine table to the edge direction of the wet machine table when the cover plate closes the inlet and outlet opening, and a flow channel for circulating hot water is formed in the cover plate. The wet preparation device, the wet preparation system and the solar cell manufacturing production line provided by the application can reduce the formation of crystals.
Owner:CHUZHOU JIETAI NEW ENERGY TECH CO LTD