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Reservoir dam deformation monitoring method and system
InactiveCN106595506AHigh measurement accuracyRealize automatic monitoring functionUsing optical meansLight spotControl system
The invention relates to a reservoir dam deformation monitoring method and system. The monitoring method includes the following steps that: 1) a reservoir dam deformation monitoring device is set; 2) the initial circular light spot images of each reference point are obtained; and 3) reservoir dam deformation monitoring is carried out. The reservoir dam deformation monitoring system includes a laser emitting device, reference point detecting devices and a main control system; the laser emitting device is arranged at one end of a dam and is used for emitting collimating laser light adopted as a reference line; a plurality of reference points with equal intervals are arranged one a ray with the laser emitting device adopted as an end point; one reference point detecting device is arranged at each reference point; the reference point detecting devices are used for detecting the subsidence and horizontal displacement of the dam; and the main control system is connected with the laser emitting device and the reference point detecting devices through a wireless communication mode and is used for transmitting detection commands, receiving detected data and performing analysis processing on the detected data. With the reservoir dam deformation monitoring method and system of the invention adopted, the automatic detection of the subsidence and horizontal displacement of the dam can be realized, the measurement accuracy of the reservoir dam is improved, and monitoring costs can be reduced.
Owner:UNIV OF JINAN
Method for measuring real-time dynamic state of rocket storage tank propellant amount
ActiveCN103344292AThere is no effect of cumulative errorAccurate measurementContainer filling methodsVolume measurement and fluid deliveryGas cylinderMathematical model
The invention discloses a method for measuring the real-time dynamic state of rocket storage tank propellant amount. The method includes the following steps that a, a control valve controlling pressurizing gas in a pressurizing gas cylinder to enter a storage tank is closed, the pressure of a storage tank air cushion in the storage tank is measured through a storage tank pressure sensor, and a record is made; b, when air pressure is lowered to a certain degree, the pressure of the storage tank air cushion in the storage tank is measured through the storage tank pressure sensor, and a record is made; c, the volume of propellant flowing out of the storage tank in a time interval is measured through a flow meter; d, a mathematic model of a closed-opening system of the storage tank air cushion is established, and a relation formula between the size of the storage tank air cushion and the pressure of the storage tank air cushion, and a relation formula between the pressure changing amount of the storage tank air cushion and the size changing amount of the storage tank air cushion are obtained; e, after the measuring process is completed, the control valve controlling the pressurizing gas in the pressurizing gas cylinder to enter the storage tank is opened, and a user makes the pressurizing process recover. The method is high in measuring accuracy, does not need additional devices, is easy to operate and can meet the requirement that the pressurizing gas outside the spacecraft storage tank enters the storage tank.
Owner:NAT UNIV OF DEFENSE TECH
Flameless combustion chamber for Stirling engine and implementation method of flameless combustion chamber
PendingCN107883406AImprove uniformityImprove efficiencyContinuous combustion chamberIndirect carbon-dioxide mitigationStirling engineCombustion chamber
The invention discloses a flameless combustion chamber for a Stirling engine and an implementation method of the flameless combustion chamber. The flameless combustion chamber comprises a combustion chamber housing, a combustor and a heat exchanger; the housing consists of an upper housing part and a lower housing part; an exhaust pipe is arranged at the top of the housing; a heat exchanger barrelis arranged at the bottom of the housing; the lower housing part is connected with the top of the heat exchanger barrel into a whole; the top of the heat exchanger barrel, the lower housing part andthe upper housing part form a combustion chamber space; a hot cavity of the Stirling engine is formed in the lower end of the heat exchanger barrel; the top of the heat exchanger barrel separates thecombustion chamber from the hot cavity; the combustor and the heat exchanger are arranged in the housing from the top to the bottom sequentially; the heat exchanger comprises a circle of heat exchangepipes arranged in a reverse-U-shaped manner; and one ends of the heat exchange pipes communicate with the hot cavity of the Stirling engine, and the other ends of the heat exchange pipes communicatewith a reheater, thus a circuiting working medium system is formed. The implementation method comprises the step that the combustion chamber is used for combustion. The flameless combustion chamber and the implementation method have the characteristics that the combustion chamber is uniform in temperature, the combustion efficiency is high and the safety and reliability are achieved. The flamelesscombustion chamber is particularly suitable for the Stirling engine for use.
Owner:SHANGHAI MICROPOWERS
Bed sheet fabric with healthcare function
ActiveCN106012068AWith health functionGood health effectConjugated cellulose/protein artificial filamentsBleaching apparatusIonBed sheets
The invention discloses a bed sheet fabric with a healthcare function. The bed sheet fabric is obtained by blending and weaving healthcare viscose fibers, cotton fibers and modal fibers and then treating a blended and woven product with essential oil finishing liquid; a preparation technology of the healthcare viscose fibers comprises the steps that sodium alginate and chitosan are added into a sodium hydroxide solution, tourmaline powder, bamboo charcoal powder and negative ion powder are added under the stirring condition, and after the mixture is stirred to be uniform, concentrating, spraying, drying and grinding are conducted to obtain healthcare particles; after the healthcare particles are blended with polyester chips and lignocellulose, heating and heat preservation are conducted, and a melt spinning stock solution is obtained; the molten spinning stock solution is added into a melt spinning machine to be prepared into filaments, the prepared filaments are cut into short filaments, and then the healthcare viscose fibers are obtained. The bed sheet fabric with the healthcare function has the excellent healthcare efficacy and even can eliminate diseases and preserve health, resist aging and maintain beauty and prolong life.
Owner:张家利
Ag4Bi2O5-doped MnO2 catalyst and preparation method for oxygen electrode
InactiveCN103022519AImprove catalytic performanceLow priceFuel and primary cellsCell electrodesPtru catalystEfficient catalyst
The invention relates to an Ag4Bi2O5-doped MnO2 oxygen electrode catalyst and a preparation method for an oxygen electrode. The oxygen electrode adopts a laminated structure of a waterproof layer, a catalyst layer and a conductive framework, wherein the catalyst layer consists of Ag4Bi2O5-doped MnO2, expanded graphite, treated activated carbon and Polytetrafluoroethylene (PTFE); the waterproof permeable layer consists of camphor, acetylene black, PTFE and polyvinylidene fluoride (PVDF); and the structure has a good oxygen reduction three-phase boundary. The key catalyst of the invention is a high-efficiency catalyst which takes the Ag4Bi2O5-doped MnO2 as an oxygen reduction process, can discharge at a high current density of 120 mAcm<2> and has a discharging life as high as 225 h, so as to show excellent catalytic activity.
Owner:BEIJING UNIV OF CHEM TECH
Fireproof magnesium oxide board
A fireproof magnesium oxide board is made from, by weight, 80-100 parts of magnesium oxide, 20-30 parts of anhydrous magnesium chloride,10-20 parts of a modified expanded vermiculite foaming agent, 20-30 parts of aluminum silicate fiber, 5-10 parts of sawdust, 10-15 parts of fly ash, 8-12 parts of glass magnesium board crushing powder, 1.5-5 parts of a non-woven fabric and 6-8 parts of water. Themodified expanded vermiculite is prepared in the following steps that (1) vermiculite is expanded incompletely and calcinated; (2) incompletely expanded vermiculite is added into a solvent to obtain vermiculite suspension liquid, and the suspension liquid and a carbonization catalyst are added into a closed reactor, the temperature rises, and high-speed stirring and heat preservation are conducted; (3) a low-molecular-weight carbon source and a foaming agent are added into the vermiculite suspension liquid for ultrasonic dispersion; (4) the solution is subjected to centrifugal separation, anda precipitate is dried primarily to obtain the fireproof expanded vermiculite. The fireproof magnesium oxide board has good fireproof performance and smoke suppression performance.
Owner:石家庄易辰防火保温材料有限公司
Energy saving device and method for wave soldering machine
InactiveCN104999150AReduce contact areaReduce generationSoldering apparatusMetal working apparatusPhysical healthEngineering
The invention provides an energy saving device and method for a wave soldering machine. The energy saving device comprises a device body, the wave soldering machine, a soldering machine sealing cap, a soldering wave trough, a mechanical pump and a smoke exhaust device, wherein the wave soldering machine is arranged on the device body; the soldering wave trough is arranged in the wave soldering machine; the mechanical pump is connected with the soldering wave trough and used for forming wave crests in the soldering wave trough; the soldering machine sealing cap is arranged over the wave soldering machine; the smoke exhaust device is connected with the soldering machine sealing cap in a sealed mode. By means of the energy saving device and method for the wave soldering machine, the requirements for soldering are lowered, materials are saved, and the requirement for wave soldering are met. The soldering machine sealing cap can completely prevent outside air from entering the wave soldering machine, and then smoke in the wave soldering machine is exhausted and treated through the smoke exhaust device, so that the shortcoming that smoke is exhausted out of a wave crest opening to air is overcome, and the environment of a workshop is improved while soldering tin is saved. The energy saving device and method save energy, are environmentally friendly, and do not affect the physical health of workers.
Owner:SHENZHEN C&D ELECTRONICS
Sitagliptin pharmaceutical composition and preparation process thereof
PendingCN112843010AImprove stabilitySimple processOrganic active ingredientsMetabolism disorderActive agentPharmaceutical drug
The present invention discloses a sitagliptin pharmaceutical composition and a preparation process thereof, the sitagliptin pharmaceutical composition comprises an active agent of sitagliptin phosphate or a pharmaceutically acceptable salt thereof as an active ingredient, and by adding a pharmaceutically acceptable additive of the pharmaceutical composition, the sitagliptin pharmaceutical composition is characterized in that the granularity of 90% of the active agent is in the range of 60-300 [mu] m; the pharmaceutical composition is prepared by a direct tabletting method and coating. As for the granularity of the medicine, the stability can be effectively improved, sticking can be improved, and the problem of product degradation impurities can be controlled without grinding or preparing dry particles with other materials by a dry method or a wet method in advance. The invention also relates to a preparation method of the pharmaceutical composition, the preparation method has the characteristics of simple process, low cost, good product stability and the like, the production efficiency is improved to a certain extent, and the preparation method is suitable for commercial production.
Owner:ZHEJIANG HUAHAI PHARMACEUTICAL CO LTD
PU (Polyurethane) composite leather and preparation method thereof
PendingCN113605107AStable surface tensionExcellent abrasion resistanceCoatingsTextiles and paperPolymer scienceFire retardant
The invention provides PU (polyurethane) composite leather which comprises a leather blank and a surface treatment layer. The components of the surface treatment layer comprise polyurethane, a bridging agent, a tackifier and a smoothing agent; the leather blank comprises a base cloth layer, a bonding layer and a surface layer; and the material components of the blank comprise polyurethane, a dissolving medium, a hardening agent, a catalyst, a solvent, a flame retardant, a pigment and the like. The invention also provides a preparation method of the composite leather. The preparation method comprises the following steps of preparing the surface layer, preparing the bonding layer, bonding the surface layer, the bonding layer and the base cloth layer together, stripping, curing and treating the surface layer. According to the PU composite leather obtained through the preparation method, the dispersity and the leveling property of the raw materials are fully exerted, the mesh surface of the product is free of black spots and uneven coating, a hand feeling agent is evenly dispersed and free of bubbles, the abradability is excellent, and then the flatness and the high yield of the product are achieved.
Owner:SEIREN SUZHOU CO LTD
Real-time dynamic measurement method of rocket tank propellant dose
ActiveCN103344292BSatisfied to enterHigh measurement accuracyContainer filling methodsVolume measurement and fluid deliveryGas cylinderMathematical model
The invention discloses a method for measuring the real-time dynamic state of rocket storage tank propellant amount. The method includes the following steps that a, a control valve controlling pressurizing gas in a pressurizing gas cylinder to enter a storage tank is closed, the pressure of a storage tank air cushion in the storage tank is measured through a storage tank pressure sensor, and a record is made; b, when air pressure is lowered to a certain degree, the pressure of the storage tank air cushion in the storage tank is measured through the storage tank pressure sensor, and a record is made; c, the volume of propellant flowing out of the storage tank in a time interval is measured through a flow meter; d, a mathematic model of a closed-opening system of the storage tank air cushion is established, and a relation formula between the size of the storage tank air cushion and the pressure of the storage tank air cushion, and a relation formula between the pressure changing amount of the storage tank air cushion and the size changing amount of the storage tank air cushion are obtained; e, after the measuring process is completed, the control valve controlling the pressurizing gas in the pressurizing gas cylinder to enter the storage tank is opened, and a user makes the pressurizing process recover. The method is high in measuring accuracy, does not need additional devices, is easy to operate and can meet the requirement that the pressurizing gas outside the spacecraft storage tank enters the storage tank.
Owner:NAT UNIV OF DEFENSE TECH
Wafer level packaging method and packaging structure
PendingCN114823357AIncrease resistanceRealize the electroplating processSemiconductor/solid-state device detailsSolid-state devicesElectrical connectionEngineering
The invention provides a wafer level packaging method and a packaging structure, and the method comprises the steps: providing a first wafer, forming a plurality of first chips in the first wafer, enabling the surface of each first chip to be provided with a first welding pad, and enabling the surface of the first wafer to be provided with a first dielectric layer which exposes the first welding pad; a plurality of second chips are provided, the surfaces of the second chips are provided with second welding pads, and second dielectric layers exposing the second welding pads are formed on the second chips; the second dielectric layer and the first dielectric layer are oppositely arranged, so that the second chip is bonded to the first wafer, the position of the second chip corresponds to the position of the first chip, and a first gap is formed between the first welding pad and the second welding pad; forming a first conductive bump for electrically connecting the first bonding pad and the second bonding pad in the first gap; and forming a packaging layer covering the second chip. According to the invention, the packaging process is simplified.
Owner:NINGBO SEMICON INT CORP
All-wheel drive extra-heavy desert transport vehicle
PendingCN114801952AImprove powerStrong ground areaUnderstructuresAxle unitsVehicle frameSuspension (vehicle)
The invention relates to an all-wheel drive extra-heavy desert transport vehicle, the drive form of the transport vehicle is 6 * 6, the transport vehicle comprises a frame, a front suspension, a rear suspension, a power system, an axle, tires, a cooling system, an air inlet system, an inflation and deflation system, an air conditioning system, a hydraulic capstan, a loading platform and a saddle, the axles are respectively mounted on the front suspension and the rear suspension, the tires are mounted on the axles, the power system is mounted on the frame, and a main radiator of the cooling system is mounted at the front end of the cab; the auxiliary radiator is installed at the rear end of the cab, the air inlet system, the inflation and deflation system, the air conditioning system, the hydraulic capstan, the loading platform and the saddle are installed on the frame, and the air inlet end of the air inlet system is higher than the top end of the cab. The problem that in the prior art, a conventional truck cannot achieve overweight desert transportation is effectively solved.
Owner:SHAANXI AUTOMOBILE GROUP
Bionic Chinese prickly ash harvesting and cutting tool
PendingCN111096148AMeet the needs of pickingSatisfied to enterPicking devicesHoneysuckleStructural engineering
The invention discloses a bionic Chinese prickly ash harvesting and cutting tool which structurally comprises an upper occluder, a lower occluder, a handheld handle and an occlusion switch, wherein the upper occluder and the lower occluder are connected through a power spring; the handheld handle is fixed on the outer side wall of the lower occluder; the occlusion switch is a pull rod of which thetop is connected and fixed at the upper occluder; the upper occluder is U-shaped; a fixing groove is formed in the outer side wall of a U-shaped arc-shaped surface; a high-silicon rubber strip is fixedly mounted inside the fixing groove; a saw tooth blade is arranged on the inner side wall of the U-shaped arc-shaped surface; the lower occluder and the upper occluder are identically structured andare arranged in a vertical symmetric manner; and a collection box is connected with the bottom of the lower occluder. The bionic Chinese prickly ash harvesting and cutting tool is capable of effectively solving problems of the prior art, is simple and reasonable in structural designing, light and convenient and wide in application range, not only meets demands of Chinese prickly ash harvesting, but also can be applied to harvesting of honeysuckle flowers and the like, is expanded technical innovation of the prior art, and has very good popularization and application value.
Owner:李文锦
Audio data transmission method and electronic equipment
PendingCN112738672ASatisfied to enterEasy to disassembleMicrophonesMouthpiece/earpiece sanitary/hygienic devicesConvertersAudio power amplifier
The invention relates to the technical field of audio, in particular to an audio data transmission method and electronic equipment, and the electronic equipment comprises a box body, a power amplifier, a loudspeaker, a Bluetooth module, a USB interface, a TRS interface, a card reader, an audio filter, a sound effect converter, a temperature sensor, a control processor, a battery, a charging port and a change-over switch. The inner side of the box body is fixedly provided with an installation panel; an installation hole is formed in one side of the installation panel, the loudspeaker is fixedly connected to the inner side of the installation hole, a plurality of through holes are formed in one side of the box body, and the USB interface, the TRS interface, the card reader, the charging port and the selector switch are all fixedly connected to the inner sides of the through holes. Through arrangement of the audio filter, the sound effect converter, the temperature sensor, the control processor, the air inlet fan, the net-shaped mounting plate, the dismounting frame, the protective door and the U-shaped handle, the portable sound box has the functions of convenience in carrying, filtering, sound effect switching, intelligent heat dissipation, convenience in cleaning, dust prevention and the like.
Owner:深圳鑫宏力精密工业有限公司
Large-axial-movement double-end-face mechanical sealing device for rake type dryer
PendingCN114087364AIncrease the amount of axial movementMeet the movement requirementsEngine sealsBearing unit rigid supportEnd face mechanical sealEngineering
The invention relates to a large-axial-movement double-end-face mechanical sealing device for a rake type dryer. The device comprises a shaft sleeve, a medium end static ring seat and an atmosphere side static ring seat are arranged on the shaft sleeve, a sealing seat is installed between the medium end static ring seat and the atmosphere side static ring seat, a corrugated pipe is installed at the left end of the shaft sleeve, a medium end flange is installed at the left end of the corrugated pipe, the medium end flange is connected with the medium end static ring seat through a screw, a single-end-face sealing assembly is arranged on the inner side of the medium end flange, a medium end sealing assembly and an atmosphere end sealing assembly are arranged on the shaft sleeve on the right side of the medium end static ring seat, and the medium end sealing assembly and the atmosphere end sealing assembly are both located on the inner side of the sealing seat. According to the large-axial-movement double-end-face mechanical sealing device for the rake type dryer, the axial movement amount can be increased through the corrugated pipe, then the movement requirement of the rake type type can be met, and dust in a medium can be prevented from entering the sealing face of a double-end-face mechanical sealing device through the single-end-face sealing assembly arranged at the medium end.
Owner:无锡全世全流体科技有限公司
Software tester
PendingCN108811403AMeet more needs in useSatisfied to enterCasings with display/control unitsCasings/cabinets/drawers detailsCD-ROMEngineering
The invention discloses a software tester. The tester comprises a device box, a CD-ROM drive is arranged in the external surface of the front end of the device box, control buttons are arranged over and close to the CD-ROM drive in the external surface of the front end of the device box, a USB interface is arranged in the external surface of one side of the device body, an SD card slot is arrangedunder and close to the USB interface in the external surface of the side of the device body, a network end interface is arranged under and close to the SD card slot, a handle is arranged under and close to the network end interface, support legs are arranged in the external surface of the lower end of the device body, and radiating holes are arranged close to the lower portions of the support legs in the external surface of the lower end of the device body. The software tester is provided with the CD-ROM drive, the USB interface, the SD card slot, the network end interface, a connecting shaft, the device box and the radiating holes, includes connection manners for reading the different software information contents, can be accommodated conveniently when not being used, is prevented from water stains due to the recessed design, and has better using prospects.
Owner:南京中律信息科技有限公司
a fire retardant coating
ActiveCN110527343BSatisfied to enterAvoid overexpansionFireproof paintsPolyurea/polyurethane coatingsPolymer sciencePtru catalyst
The invention relates to a fireproof coating. The fireproof coating comprises the following components in percentage by weight: 40-70% of an aqueous resin emulsion, 5-20% of modified expanded vermiculite, 10-30% of coating additive and other fillers, and 10-30% of water. The modified expanded vermiculite is prepared by the following steps: (1) carrying out incomplete expansion calcination on vermiculite: namely removing impurities from a vermiculite raw material, putting the vermiculite raw material into a rotary kiln, heating and expanding the vermiculite raw material, and carrying out discharging to obtain incompletely expanded vermiculite with a bulk density of 1000-1200 kg / m<3>; (2) adding the incompletely expanded vermiculite into a solvent, carrying out full stirring and ultrasonic dispersing to obtain a vermiculite suspension, adding the suspension and a carbon-forming catalyst ammonium polyphosphate into a closed reaction vessel, carrying out heating to 120-180 DEG C, carryingout stirring at a high speed, and preserving heat to obtain a suspension; (3) adding a fireproof modifier into the suspension obtained in the step (2) at normal temperature, and carrying out ultrasonic dispersion, wherein the fireproof modifier consists of a low-molecular carbon source and a foaming agent; and (4) performing centrifugal separation on the solution obtained in the step (3), and performing primary drying on the precipitate to obtain the fireproof expanded vermiculite. The fireproof coating has good fireproof performance and smoke suppression performance.
Owner:河北辰翔实业有限公司
A closed motor and motor base with internal and external cooling air passages
ActiveCN112713716BImprove cooling effectSolve the disadvantages of poor protection performanceCooling/ventillation arrangementSupports/enclosures/casingsElectric machineryEngineering
The invention relates to a motor and its machine base, in particular to a closed motor with internal and external cooling air passages and its machine base. In order to solve the problem of many defects in the existing open motors and closed motors, the present invention provides a closed motor with internal and external cooling air passages and its frame. The motor in the present invention includes a double The layered cylindrical machine base and the heat dissipation plate in it, the heat dissipation plate divides the hollow area into an outer cooling air duct and an inner cooling air duct, and the transmission end plate of the machine base is provided with an outer cooling air duct that communicates with the outer cooling air duct and is suitable for the machine base. The inlet of the cooling air duct, the outer cooling air duct outlets communicated with the outer cooling air duct are respectively provided on the peripheral surface of the non-transmission end of the outer frame, and the outer cooling air duct outlets are respectively provided on the peripheral surfaces of the transmission end and the non-transmission end of the inner layer frame. The inner cooling air duct communicates with the inner air circulation port of the transmission end and the inner air circulation port of the non-transmission end. The structure of the motor in the present invention enables the motor to have good protection performance and excellent cooling and heat dissipation.
Owner:CRRC YONGJI ELECTRIC CO LTD
Efficient combustor
The invention relates to a high-efficiency combustor which comprises a combustion mechanism comprising a combustion cavity, a plurality of waste gas connectors and combustion-supporting air connectors; the combustion mechanism is installed on a combustion furnace, the combustion cavity communicates with a furnace cavity of the combustion furnace, the multiple waste gas connectors communicate with the combustion cavity, and the combustion-supporting air connector communicates with the combustion cavity. The gas combustion assisting mechanism is arranged on the combustion mechanism; the fuel gas combustion assisting mechanism comprises a fuel gas opening and a combustion assisting air opening, and the fuel gas opening and the combustion assisting air opening are both communicated with the combustion cavity. The waste liquid spraying and burning mechanism is arranged on the fuel gas burning assisting mechanism; the waste liquid spraying and burning mechanism comprises a plurality of waste liquid spraying pipes, and pipe openings of the waste liquid spraying pipes penetrate through the fuel gas burning assisting mechanism into the burning cavity. A plurality of waste gas connectors are arranged on the combustion mechanism, and a plurality of waste liquid spray pipes are arranged on the waste liquid spray combustion mechanism, so that multiple strands of waste gas and multiple waste liquid can enter the combustion cavity at the same time to be incinerated.
Owner:北京科太亚洲生态科技股份有限公司
A bridge structure for relining manipulator
The invention discloses a bridge frame structure of a relining manipulator, which comprises a bottom frame, first slide rails are fixedly installed on both sides of the top of the bottom frame, a first slide link block is slidably installed on the first slide rail, and two first slide link blocks A first connecting shaft is arranged between them, and the first connecting shaft is rotatably arranged between the two first sliding link blocks, and two first fixing seats are fixedly installed on both sides of the bottom frame. In the present invention, through the setting of the first cylinder and the second cylinder, the upper pallet of the lining trolley can be lifted and lowered in two stages, and then people of different heights can put the lining plate on the pallet of the lining trolley, which has strong practicability and at the same time When the structure is installed in the ball mill where the lining trolley enters, the height of the supporting plate can be lowered to meet the entry of different ball mill calibers, which solves the difficulty in placing the lining plate on the lining trolley for operators of different heights in the prior art. The height of the lining trolley cannot satisfy the technical problem of entering the ball mill when the caliber of the ball mill is small.
Owner:合肥市春华起重机械有限公司
Safety protection system of logging-while-drilling apparatus
InactiveCN106914850ANovel structureScientific and reasonable designMetal-working hand toolsButt jointEngineering
The invention discloses a safety protection system of a logging-while-drilling apparatus. The safety protection system comprises an upper chuck, a lower chuck, an upper stopping disk, a lower stopping disk, telescopic arms, a power supply, a switch, balls and anti-collision cushions. The safety protection system is characterized in that the upper chuck is fixed at an upper opening of the upper stopping disk; the lower chuck is fixed at a lower opening of the lower stopping disk; longitudinal notches are formed in the same positions of one side of the upper chuck, the lower chuck, the upper stopping disk and the lower stopping disk; the anti-collision cushions for protecting parameter short sections are stuck on inner walls of the two notches; a mounting groove is formed in an upper surface of the upper stopping disk; a power supply is fixed inside the mounting groove. According to the safety protection system of the logging-while-drilling apparatus, the upper and lower stopping disks can be moved without the need of manpower and the automation degree is high; heat dissipation requirements can be met and seawater cannot enter a cabinet body, so that a machine body is effectively protected; the anti-collision cushions are mounted on the notches and the parameter short sections are effectively protected from damages; when connecting plugs cannot be in butt joint, the parameter short sections can be rotatably adjusted, so that angles of the connecting plugs are changed and the safety protection system is convenient to mount.
Owner:天津中新安德科技有限公司
Polymorphic zeolite/C-S-H composite adsorption material as well as preparation method and application thereof
ActiveCN113231010AImprove adsorption capacityFacilitated DiffusionOther chemical processesWater contaminantsAluminiumZeolite
The invention belongs to the technical field of waste utilization and treatment, and particularly discloses a preparation method of a multi-type zeolite / C-S-H composite adsorption material, which comprises the following steps: slurrying a calcium-silicon-aluminum raw material and alkali with water, and carrying out hydrothermal treatment, wherein the mass ratio of CaO to SiO2 is 0.45-0.75, and the mass ratio of SiO2 to Al2O3 is 1.2-2.0; and after the reaction, separating to obtain a composite adsorption material containing crystalline polymorphic zeolite and amorphous hydrated calcium silicate, wherein in the pulpified slurry, the liquid-solid ratio is 5-18 mL / g, the temperature of the hydrothermal reaction is 160-190 DEG C, and the time of the hydrothermal reaction is 1-5 hours. Through cooperative control of the conditions, the multi-type zeolite / C-S-H composite adsorption material can be obtained, and the material obtained under the cooperative process has better metal adsorption performance.
Owner:CENT SOUTH UNIV
Heat collection evaporator with built-in passage and solar water heater with same
InactiveCN104776611AAvoid malfunctioningLow efficiencySolar heating energySteam generation heating methodsGlass coverWater storage tank
The invention provides a heat collection evaporator with a built-in passage. The heat collection evaporator comprises a heat preservation shell and a sealed shell, wherein the sealed shell is arranged in the heat preservation shell; a heat preservation layer is arranged between the bottom part of the sealed shell and the heat preservation shell; the upper part of the sealed shell is provided with a glass cover plate; a capillary structure layer and a solar heat collection panel which covers the capillary structure layer are arranged in the sealed shell; a steam collection groove and a working medium backflow groove are prefabricated in the capillary structure layer; a working medium entering the capillary structure layer can be evaporated after heat is absorbed by the solar heat collection plate, so that the heat can be supplied. The invention also provides a solar water heater with the heat collection evaporator, wherein the heat collection evaporator and a water storage tank are communicated through a loop pipeline. According to heat collection evaporator and the solar water heater, provided by the invention, the requirement of mid-rise buildings on the whole attractiveness can be met; meanwhile, power-free cycle of the working medium can be realized by utilizing the capillary action of the capillary structure, the installation of the whole solar water heater is simple, the working medium can be driven without other power, and the daily demands of people can be met.
Owner:ZHENGZHOU UNIV
A degaussing and dustproof high-quality mobile phone speaker
ActiveCN105072544BEliminate magnetic field leakageImprove compatibilityElectrical transducersEngineeringDegaussing
The invention discloses a degaussing dustproof cell phone horn with high tone quality. The cell phone horn comprises an outer support, an inner support, a front cover, a rear cover, and a vibrating diaphragm. The inner support is installed in the inner chamber of the outer support. The vibrating diaphragm is arranged on the top end of the inner support and is located in the inner chamber of the outer support. An annular induction coil is arranged on the top end of the inner support. An annular vibrating coil is arranged in the annular area of the annular induction coil. The direction of the current flowing in the annular vibrating coil is opposite to that flowing in the annular induction coil. The front cover and the rear cover sleeve the outer side of the outer support. The inner surfaces of the front cover and the rear cover and the outer surfaces of the outer support are in gapless cooperation. The front cover and the rear cover may move up and down along the outer support and cooperate with the outer support in order to form a front vocal chamber and rear vocal chamber respectively.
Owner:朝阳聚声泰(信丰)科技有限公司
A bed sheet fabric with health care function
ActiveCN106012068BGood physical propertiesImprove spinnabilityConjugated cellulose/protein artificial filamentsDyeing processCelluloseDisease
The invention discloses a bed sheet fabric with a healthcare function. The bed sheet fabric is obtained by blending and weaving healthcare viscose fibers, cotton fibers and modal fibers and then treating a blended and woven product with essential oil finishing liquid; a preparation technology of the healthcare viscose fibers comprises the steps that sodium alginate and chitosan are added into a sodium hydroxide solution, tourmaline powder, bamboo charcoal powder and negative ion powder are added under the stirring condition, and after the mixture is stirred to be uniform, concentrating, spraying, drying and grinding are conducted to obtain healthcare particles; after the healthcare particles are blended with polyester chips and lignocellulose, heating and heat preservation are conducted, and a melt spinning stock solution is obtained; the molten spinning stock solution is added into a melt spinning machine to be prepared into filaments, the prepared filaments are cut into short filaments, and then the healthcare viscose fibers are obtained. The bed sheet fabric with the healthcare function has the excellent healthcare efficacy and even can eliminate diseases and preserve health, resist aging and maintain beauty and prolong life.
Owner:张家利
A fireproof magnesium oxide plate
A fire-proof magnesium oxide plate, which is made by mixing the following raw materials, the names and parts by weight of which are as follows: 80-100 parts of magnesium oxide; 20-30 parts of anhydrous magnesium chloride; 10-20 parts of modified expanded vermiculite foaming agent; 20-30 parts of aluminum silicate fiber; 5-10 parts of sawdust; 10-15 parts of fly ash; 8-12 parts of glass magnesium board crushed powder; 1.5-5 parts of non-woven fabric; 6-8 parts of water; The expanded vermiculite is prepared by the following steps: (1) incompletely expanded vermiculite is calcined: (2) the incompletely expanded vermiculite is added to the solvent to obtain a vermiculite suspension, and the suspension is mixed with a carbon-forming catalyst Add it into a closed reaction vessel, heat it, stir it at a high speed and keep it warm; (3) add a low-molecular-weight carbon source and a foaming agent to the vermiculite suspension, and perform ultrasonic dispersion; (4) centrifuge the obtained solution, and Preliminary drying of the precipitate was carried out to obtain fireproof expanded vermiculite. The fireproof magnesium oxide plate has good fireproof performance and smoke suppression performance.
Owner:石家庄易辰防火保温材料有限公司
Wafer-level system packaging structure and packaging method
InactiveCN114823377AAchieve electrical connectionSimple processTelevision system detailsPiezoelectric/electrostriction/magnetostriction machinesWaferElectrical connection
The invention provides a wafer-level system packaging structure and method, and the method comprises the steps: providing a first device wafer which is internally provided with a plurality of device modules, and is provided with a front surface and a back surface, a plurality of first welding pads which are electrically connected with the device module and are sunken in the front surface are exposed out of the front surface; providing a plurality of first chips, wherein the lower surfaces of the first chips are provided with second welding pads; forming a bonding layer on the front surface of the first device wafer or the lower surface of the first chip, and forming an opening in the bonding layer; bonding the first device wafer and the first chip through the bonding layer, and enabling a cavity formed by the opening to serve as a working cavity of the first device module and / or the first chip; the first welding pad and the second welding pad are oppositely enclosed to form a gap; and forming a conductive bump in the gap by adopting an electroplating process so as to electrically connect the first welding pad and the second welding pad.
Owner:NINGBO SEMICON INT CORP
Wafer-level system packaging structure and packaging method
InactiveCN114823394AAchieve electrical connectionSimple processTelevision system detailsSemiconductor/solid-state device detailsWaferElectrical connection
The invention provides a wafer-level system packaging structure and method, and the method comprises the steps: providing a first device wafer which is internally provided with a plurality of first device modules, and is provided with a front surface and a back surface, a plurality of first welding pads which are electrically connected with the first device module and are sunken in the front surface are exposed out of the front surface; a second device wafer is provided, a plurality of second device modules are formed in the second device wafer, the second device wafer comprises an upper surface and a lower surface which are opposite to each other, and a plurality of second welding pads which are electrically connected with the second device modules and are recessed in the upper surface are exposed out of the upper surface; bonding the first device wafer and the second device wafer to enable the first welding pad and the second welding pad to oppositely enclose a gap; and forming a conductive bump in the gap by adopting an electroplating process so as to electrically connect the first welding pad and the second welding pad.
Owner:NINGBO SEMICON INT CORP
Method and system for monitoring deformation of reservoir dam body
InactiveCN106595506BHigh measurement accuracyRealize automatic monitoring functionUsing optical meansControl systemLight spot
The invention relates to a reservoir dam deformation monitoring method and system. The monitoring method includes the following steps that: 1) a reservoir dam deformation monitoring device is set; 2) the initial circular light spot images of each reference point are obtained; and 3) reservoir dam deformation monitoring is carried out. The reservoir dam deformation monitoring system includes a laser emitting device, reference point detecting devices and a main control system; the laser emitting device is arranged at one end of a dam and is used for emitting collimating laser light adopted as a reference line; a plurality of reference points with equal intervals are arranged one a ray with the laser emitting device adopted as an end point; one reference point detecting device is arranged at each reference point; the reference point detecting devices are used for detecting the subsidence and horizontal displacement of the dam; and the main control system is connected with the laser emitting device and the reference point detecting devices through a wireless communication mode and is used for transmitting detection commands, receiving detected data and performing analysis processing on the detected data. With the reservoir dam deformation monitoring method and system of the invention adopted, the automatic detection of the subsidence and horizontal displacement of the dam can be realized, the measurement accuracy of the reservoir dam is improved, and monitoring costs can be reduced.
Owner:UNIV OF JINAN
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