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36results about How to "Meet the needs of the project" patented technology
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Nuclear power concrete additive and preparation method thereof
The invention which belongs to the technical field of nuclear power concrete especially relates to a nuclear power concrete additive. The nuclear power concrete additive is prepared from the following raw materials, by mass, 30-80% of a polycarboxylic acid water reducer, 10-30% of a polycarboxylic acid slump retaining agent, 1-15% of a retarder, 0-0.5% of a water retaining agent, 0.1-2% of an air entraining agent, 1-20% of a shrinkage reducing agent, 0-0.5% of an antiseptic, 0.05-0.5% of a defoamer, and the balance water. The additive of the invention, which has the functions of concrete workability improvement, retardation (avoiding of cold seams caused by long-time construction), concrete temperature peak value reduction, concrete drying contraction reduction, introduction of minimal steam bubbles into concrete, concrete endurance improvement and the like, allows concrete to satisfy engineering needs.
Owner:浙江五龙新材股份有限公司
Method for measuring phase to phase mutual impedance of long-distance extra-high voltage common-tower double-circuit transmission line
ActiveCN103713198AReduce mistakesMeet the needs of the projectImpedence measurementsFilter algorithmTower
The invention discloses a method for measuring phase to phase mutual impedance of a long-distance extra-high voltage common-tower double-circuit transmission line. The method comprises the first step that the head end of a measured phase is in an open circuit, the tail end of the measured phase is in ground connection, the head ends of other phases are in an open circuit, the tail ends of other phases are in ground connection, voltages are applied to the head end of the measured phase, currents are injected into the head end of the measured phase, and the current signal of the head end of the measured phase and the induction voltage signals of the head ends of other phases under two frequencies are synchronously measured; the second step that the voltage signals and the current signals under the two frequencies are obtained through an FFT filtering algorithm; the third step that phase to phase mutual impedance values under the two frequencies are respectively calculated according to the voltage signals and the current signals under the two frequencies, and a phase to phase mutual impedance value under the frequency of 50Hz is obtained by averaging the two phase to phase mutual impedance values. According to the method, a traditional measurement method is changed, the influence of line distribution parameter characteristics and induction voltage phases and the existence of power frequency interference are considered in the line connection mode and the algorithm, and especially in the long-distance transmission line, the errors of the phase to phase mutual impedance value measured through the method are reduced, and engineering needs are met.
Owner:STATE GRID CORP OF CHINA +1
Mechanical underground vibration-absorption punching drilling tool
ActiveCN102536114AHigh impact energySimple structureDrilling drivesBorehole drivesPunchingWell drilling
A mechanical underground vibration-absorption punching drilling tool comprises a spline mandrel, a spline cylinder, a vibration-reducing return spring outer cylinder, and a punching assembly outer cylinder, wherein an upper part matching joint is connected to the top end of the spline mandrel; the spline cylinder is connected with the vibration-reducing return spring outer cylinder and the punching assembly outer cylinder into a whole; the spline mandrel is arranged in the spline cylinder, the vibration-reducing return spring outer cylinder and the punching assembly outer cylinder; the lower end of the spline mandrel is connected with a shunting structure; the spline mandrel is connected with a plunger through the shunting structure; the lower end of the plunger is arranged in a punching cylinder; the lower part of the punching cylinder is arranged in a punching bearing structure; the lower end of the punching bearing structure is connected with a lower part matching joint; and a spacing structure is arranged at the lower end of the punching assembly outer cylinder. According to the invention, the vibration reduction for a drill string is combined with the high-frequency low-punching power of a drill bit, and longitudinal vibration easy to cause fatigue rupture of the drill string is converted into internal energy of a vibration-reducing return spring and punching power providing convenience for improving drilling speed, so as to fulfill rotary punching drilling and improve rock breaking efficiency.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Polymer composite heat resisting waterproof sheet and preparation method thereof
ActiveCN101186133AImprove physical performance indicatorsMeet the needs of the projectOther chemical processesSynthetic resin layered productsMaleic anhydridePolypropylene
The invention belongs to waterproof material technical field in water conservancy and civil building engineering, and in particular discloses a macromolecule composite heat-resistance waterproof sheet used for production of waterproof coil and the preparation method. The technical proposal is that the invention consists of a middle layer consisting of polypropylene, HDPE and maleic anhydride grafting agent and surface layers consisting of linear polyethylene and HDPE bonded at two side surfaces of the middle layer; the macromolecule composite heat-resistance waterproof sheet is extruded and compounded by the middle layer and the surface layers at two sides of the middle layer; the physical performances of the formed waterproof sheet are greatly improved; by detection, the longitudinal and transverse tensile strength is more than 300N / 50mm, namely, more than 500%; the perforation resistance reaches more than 80KN / m when the thickness is more than 0.5mm and reaches 30KN / m when the thickness is less than 0.5mm, thus meeting the engineering requirement.
Owner:衡水中裕铁信防水技术有限公司
Magnetic suspension type bridge main tower pylon top displacement measurement device and measurement method thereof
InactiveCN106840115ASimplify the offset testing processNo artificialSurveying instrumentsMeasurement deviceTower
The invention discloses a magnetic suspension type bridge main tower pylon top displacement measurement device, which is mainly formed by a magnetic suspension rail, a shielding sleeve and an adjustable horizontal installation base. According to the device, based on a magnetic suspension principle, the magnetic suspension rail is utilized for providing a constant vertical force for a suspension mass block, so that the suspension mass block is suspended above the rail, a fixed point in a main tower pylon top displacement test is formed, the magnetic suspension rail, the shielding sleeve and the base are horizontally move along with bridge pylon top displacement, and the bridge pylon top displacement can be obtained through measuring the change of a relative horizontal distance between the suspension mass block and the shielding sleeve. The magnetic suspension type bridge main tower pylon top displacement measurement device provided by the invention is applied in the bridge main tower pylon top displacement test, so that an external fixed point has no need to be set, and the absolute displacement of a bridge main tower pylon top can be accurately measured; the dynamic measurement of the pylon top displacement can be realized, and the device can be widely applicable to the technical fields of bridge load tests, health monitoring and the like. Accordingly, the inventor also builds a corresponding measurement method.
Owner:GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
Novel high-strength high-water-retention coal ash high-water material
The invention discloses a novel high-strength high-water-retention coal ash high-water material. The materials is prepared from a first major part and a second major part, wherein the first major part consists of 65%-75% of water, a material A (15%-20% of sulphoaluminate cement clinker), a material B (4%-6% of lime and 10%-15% of gypsum), a material A-A (1%-2% of a retarder and 2%-4% of a suspending agent), and a material B-B (0.1%-0.5% of a setting accelerator, 1%-2% of an early strength agent and 1%-2% of a dispersing agent), and the material A, the material A-A, the material B-B and the material B meet a relationship of A:(A-A):(B-B):B= 1:0.1:1:0.04. The coal ash weight of the second major part can reach 30% of the total weight of all the components except water of the first major part. The novel high-strength high-water-retention coal ash high-water material has the advantages of high later-stage strength, good water retention during a stress process, recycle of resources, environment protection and cost saving, and can be applied on a large scale to the field of long-term stable supporting and filling in mining areas
Owner:SICHUAN UNIV
Laser surveying and mapping instrument and surveying and mapping method for two-dimensional plane house type and three-dimensional house type
PendingCN110926440AReduce measurement errorAccurate measurementOptical rangefindersUsing optical meansEngineeringMechanical engineering
The invention discloses a laser surveying and mapping instrument and a surveying and mapping method of a two-dimensional plane house type and a three-dimensional house type. The laser surveying and mapping instrument comprises a base, a horizontal pan-tilt module installed on the base, a vertical pan-tilt module installed on the horizontal pan-tilt module and a laser module installed on the vertical pan-tilt module. The vertical pan-tilt module and the horizontal pan-tilt module of the laser surveying and mapping instrument can drive the laser module to rotate in a vertical direction and rotate on a horizontal plane, so that the laser module can measure the data of each indoor wall surface. A person does not need to hold a measuring device by hands, the measuring errors caused by the measurement person are reduced, and the measurement is more accurate.
Owner:筑橙科技(深圳)有限公司
Method for determining ground mark time of inner detector of pipeline
The invention discloses a method for determining the ground mark time of an inner detector of a pipeline, relating to the technical field of inner detection of the pipelines. The method comprises the following steps of: acquiring a friction sound signal which is generated by the friction between the inner detector and the pipe wall and meets a preset rule by an acoustic ground mark system; acquiring an envelope signal through band-pass filtering, full-wave shaping and enveloping acquiring processing; establishing a mathematical model that the amplitude of the friction sound signal of the inner detector, which is received by the ground marker, changes along with the time; substituting the vertical distance between a sensor of the ground marker and a pipeline, the operation speed of the inner detector of the pipeline within a signal time period as well as the obtained envelope signal into the established mathematical model; and acquiring the ground mark time through least square fitting. Proved by experiments, the error of the acquired ground mark time obtained through the method is little; the acquired ground mark time is more accurate and can meet the requirement of projects; and the odometer wheel error of the inner detector of the pipeline can be corrected more accurately.
Owner:TIANJIN UNIV
Method for measuring phase self-admittance and phase self-impedance parameters of alternating-current extra-high voltage same-tower double-circuit lines
ActiveCN103713196AReduce mistakesMeet the needs of the projectResistance/reactance/impedenceTime errorAlternating current
The invention discloses a method for measuring phase self-admittance and phase self-impedance parameters of alternating-current extra-high voltage same-tower double-circuit lines. The phase self-admittance measurement method includes the following steps that (1) the head end and the tail end of a phase to be measured are in an open state, and the head ends and the tail ends of other phases not to be measured are short-circuited over the ground; (2) alternating-current voltage is applied to the head end of the phase to be measured, the head end and the tail end of the phase are synchronously measured to obtain head end voltage, head end currents, tail end voltage and tail end currents of the phase to be measured, and the time error of synchronous measurement of the head end and the tail end of the phase to be measured is smaller than 1 microsecond; (3) self-admittance is obtained according to a formula. A traditional measurement method is changed, distribution parameter characteristics of a wiring mode and an algorithm, influences of other phases on the phase to be measured and existence of power frequency interference are considered, especially in a long-distance electric transmission and distribution circuit, errors of self parameters measured in the method are reduced and requirements of a project are met.
Owner:STATE GRID CORP OF CHINA +1
Method for measuring inter-phase mutual capacitances of long-distance extra-high voltage double-circuit lines on same tower
ActiveCN103760423AReduce mistakesMeet the needs of the projectResistance/reactance/impedenceShortest distanceEngineering
The invention discloses a method for measuring inter-phase mutual capacitances of long-distance extra-high voltage double-circuit lines on a same tower. The method is suitable for measuring the inter-phase mutual capacitances of the double power transmission lines on the same tower at the frequency of 50 Hz, wherein the distance between the power transmission lines is more than 240 kilometers, and the method is also suitable for measuring the inter-phase mutual capacitances of the short-distance lines. The method includes the steps that firstly, inter-phase mutual capacitance values at two frequencies are acquired, wherein up-down absolute error values of the two frequencies are equal with the frequency of 50Hz as the midpoint; the two inter-phase mutual capacitance values are added and then are divided by two, and then the inter-phase mutual capacitance mean value at the two frequencies is obtained, wherein the mean value is the inter-phase mutual capacitance at the frequency of 50 Hz. Compared with the prior art, the method has the following advantages that a traditional measurement method is changed, the influence of the lines on ground capacitances and interference of power frequency are taken into account in the wiring mode and algorithms, errors of the inter-phase capacitances measured through the method are reduced especially in the long-distance power transmission lines, and the engineering requirement is met.
Owner:STATE GRID CORP OF CHINA +1
Gas sensor with gas chromatographic analysis function
The invention discloses a gas sensor with a gas chromatographic analysis function, and relates to the field of gas detection. The gas sensor comprises a degassing device, a gas detection device and agas circuit driving device, wherein the degassing device is used for separating gas from drilling fluid; the gas detection device is connected with the degassing device, and used for performing gas chromatographic analysis; the gas circuit driving device is used for driving the gas in the degassing device into the gas detection device; the degassing device comprises a gas-liquid separation chamberformed by enclosure of a semi-permeable membrane; the gas detection device comprises a hollow optical fiber, an infrared light source positioned at the end of the hollow optical fiber, and a wavelength scanning detector; and the inside of the hollow optical fiber communicates with the gas-liquid separation chamber through a communicating pipe. Since gas-liquid separation and gas chromatographic analysis can be realized only through the semi-permeable membrane and the hollow optical fiber, compared with degassers, gas chromatographs and the like in the prior art, the sensor is compact in size,stable in efficiency, light in weight, easy and convenient to carry and install, thus lowering the cost of operation.
Owner:新乡迈特能源技术有限公司
Shield tunneling formation loss simulation device and method for multi-compartment separated water capsule drainage
PendingCN110176176AComprehensive response to tunneling risksKeep yourself safeEducational modelsEngineeringModel test
The invention relates to a shield tunneling formation loss simulation device and method for multi-compartment separated water capsule drainage. The device includes a model test soil box with an opening at the upper end, a horizontal model shield is arranged in the model test soil box, and the model test soil box outside the model shield is filled with formation soil; water capsules are arranged onthe outer wall of the model shield circumferentially in the longitudinal direction, and the water capsules are separated into a plurality of relatively independent compartments in the circumferentialdirection; and each water capsule compartment is provided with an independent drainage hose, one ends of the drainage hoses are connected to the water capsule compartments, the other ends of the drainage hoses are connected to measuring cups outside the model test soil box after penetrating through reserved holes of the model test soil box, and the formation loss is realized by controlling the displacement of the water capsules. The shield tunneling formation loss simulation device and method for multi-compartment separated water capsule drainage has the advantages of simple experimental device, diverse functions, low cost and simple and convenient process, provides a new idea and test method for studying the formation loss mechanism and displacement law of shield tunneling under variousworking conditions, and provides technical support for ensuring the safety of shield tunneling construction and the surrounding environment.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
Nuclear power concrete additive and preparation method thereof
The invention which belongs to the technical field of nuclear power concrete especially relates to a nuclear power concrete additive. The nuclear power concrete additive is prepared from the following raw materials, by mass, 30-80% of a polycarboxylic acid water reducer, 10-30% of a polycarboxylic acid slump retaining agent, 1-15% of a retarder, 0-0.5% of a water retaining agent, 0.1-2% of an air entraining agent, 1-20% of a shrinkage reducing agent, 0-0.5% of an antiseptic, 0.05-0.5% of a defoamer, and the balance water. The additive of the invention, which has the functions of concrete workability improvement, retardation (avoiding of cold seams caused by long-time construction), concrete temperature peak value reduction, concrete drying contraction reduction, introduction of minimal steam bubbles into concrete, concrete endurance improvement and the like, allows concrete to satisfy engineering needs.
Owner:浙江五龙新材股份有限公司
Rigid body rotational inertia determination method based on torsional pendulum method
PendingCN113375863AGuaranteed accuracyMeet the needs of the projectStatic/dynamic balance measurementEngineeringGravity center
The invention belongs to the technical field of rigid body rotational inertia determination, and particularly relates to a rigid body rotational inertia determination method based on a torsional pendulum method, wherein the method comprises the steps: obtaining an inertia measurement action parameter K of a torsional pendulum measurement system; obtaining the mass m of the rigid body; obtaining the distance L between the gravity center of the rigid body and the torsional pendulum axis of the torsional pendulum measurement system; obtaining a torsional pendulum period T of the torsional pendulum measurement system; obtaining a damping coefficient xi of the torsional pendulum measurement system; obtaining an aerodynamic damping coefficient Xi' of the rigid body; and calculating rotational inertia I of the rigid body.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
Urea direct injection pyrolysis spray gun characteristic test experimental device and method
PendingCN113959749AAdjustable temperatureImprove reliabilityGas treatmentDispersed particle separationGear pumpEnvironmental engineering
The invention discloses a urea direct injection pyrolysis spray gun characteristic test experimental device and method. The middle of a double-fluid urea direct injection pyrolysis spray gun is mounted in a tubular heater; an outlet of the air blower is communicated with an inlet of the hot air gun through the first manual valve, and an outlet of the hot air gun is communicated with a hot air inlet of the tubular heater; an outlet of the water tank is communicated with a liquid pipeline inlet of the double-fluid urea direct injection pyrolysis spray gun through a gear pump; an outlet of the air compressor is divided into two paths after passing through a filter pressure reducer, one path is communicated with an atomized air interface of the double-fluid urea direct injection pyrolysis spray gun through a second manual valve, and the other path is communicated with a cooling air interface of the double-fluid urea direct injection pyrolysis spray gun through a third manual valve; the device and the method can simulate the test of the characteristics of the urea direct-current pyrolysis spray gun.
Owner:XIAN THERMAL POWER RES INST CO LTD
Polymer composite heat resisting waterproof sheet and preparation method thereof
ActiveCN101186133BImprove physical performance indicatorsMeet the needs of the projectOther chemical processesSynthetic resin layered productsSurface layerHeat resistance
Owner:衡水中裕铁信防水技术有限公司
High-strength anti-static overhead ceramic tile
InactiveCN111499346ASave materialMeet the needs of the projectCeramic materials productionClaywaresTextile printerSurface cleaning
The invention discloses a high-strength anti-static overhead ceramic tile. The high-strength anti-static overhead ceramic tile is prepared from the following raw materials in parts by weight: 1500 g of albite powder, 1500 g of raw ore mud, 500 g of sand paste, 2500 g of mixed mud, 500 g of white mud, 500 g of washed mud, 2500 g of potassium-sodium stone powder, 1500 g of a mixture, 1500 g of potassium-sodium sand, 500 g of No.3 sand, 1000 g of high-strength sand, 1500 g of talc, 500 g of bentonite and 500 g of mud. A preparation method for the tile comprises the following steps: blowing and iron removal of the raw materials; slurry aging; sieving for iron removal; spray drying; aging in a stock bin; compression molding; drying; surface cleaning; applying of a conductive surface glaze; ink-jet printing; firing; polishing; grading; packaging; and warehousing. According to the invention, materials are saved, engineering requirements are met, and environment-friendly requirements are met.
Owner:周建军
A method for measuring mutual impedance between phases of long-distance UHV double-circuit transmission lines on the same tower
ActiveCN103713198BReduce mistakesMeet the needs of the projectImpedence measurementsDouble phaseFilter algorithm
The invention discloses a method for measuring mutual impedance between phases of long-distance ultra-high voltage double-circuit transmission lines on the same tower. In the first step, the open-circuit end of the first end of the measured phase is grounded, and the open-circuit end of the first end of the other phases is grounded, and the voltage injection current is applied to the first end of the measured phase, and the current signal of the first end of the measured phase and the first end of the other phase at two frequencies are measured synchronously. In the second step, the voltage and current signals at the two frequencies are obtained by using the FFT Fourier transform filtering algorithm; in the third step, the voltage and current signals at the two frequencies are calculated separately to obtain the two frequencies The phase-to-phase mutual impedance value of the two phase-to-phase mutual impedance values is averaged to obtain the phase-to-phase mutual impedance value at a frequency of 50 Hz. The invention changes the traditional measurement method, and considers the influence of line distribution parameter characteristics and induced voltage phases and the existence of power frequency interference on the connection mode and algorithm, especially in long-distance transmission lines, the phase-to-phase measured by the method of the invention The mutual impedance value reduces the error and meets the needs of the project.
Owner:STATE GRID CORP OF CHINA +1
Vue-based navigation bar display method, storage medium and terminal equipment
PendingCN111291283AImprove user experienceMeet the needs of the projectSoftware engineeringWebsite content managementComputer hardwareData display
The invention discloses a vue-based navigation bar display method, a storage medium and terminal equipment, and the method comprises the steps: obtaining to-be-displayed navigation configuration datawhen a data display instruction is received; and displaying the to-be-displayed navigation configuration data according to a pre-packaged navigation bar assembly. According to the navigation bar assembly packaged in advance, various styles can be flexibly configured for the navigation bar according to the navigation configuration data, so that the requirements of projects are met, and better use experience is brought to users.
Owner:GENEW TECH
Composite plastic-retaining grinding aid for cement and use method
The invention relates to a composite plastic-retaining grinding aid for cement and a manufacturing method. The composite plastic-retaining grinding aid is prepared by following steps of: compounding a grinding aid and a concrete retarder according to a certain proportion, and then, diluting the compounded product of the grinding aid and the concrete retarder to a certain concentration with water. When the composite plastic-retaining grinding aid for cement is adopted in the process of the grinding operation of cement production, the aim of assisting grinding is achieved, meanwhile, the concrete prepared from the cement doped with the composite plastic-retaining grinding aid has a favorable plastic-retaining effect and reduced age losses and meets requirements of projects. The composite plastic-retaining grinding aid has favorable technical economic benefits and social benefits.
Owner:ZHONGYUAN CONSTR GROUP
Device for fast stabilizing alternating current in power frequency period
InactiveCN101866192BContinuous processingProcessing speedElectric variable regulationVoltage converterAudio power amplifier
The invention relates to a device for fast stabilizing an alternating current in a power frequency period. The device consists of a current transformer, a first current / voltage converter, a standard current generator, a second current / voltage converter, a comparator, a fixed amplifier and a first coupling transformer. The device has the characteristics of environmental protection, high quality, high efficiency, fastness and the like, and has the function of stabilizing the alternating current.
Owner:牛世斌
Mechanical underground vibration-absorption punching drilling tool
ActiveCN102536114BHigh impact energySimple structureDrilling drivesBorehole drivesPunchingWell drilling
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
A method for automatic decomposition of multi-connected domains based on two-dimensional heat conduction differential equations
ActiveCN107943747BEasy to handleImprove efficiencyDesign optimisation/simulationCAD numerical modellingEngineeringMechanical engineering
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
A method for measuring mutual capacitance between phases of long-distance UHV double-circuit lines on the same tower
ActiveCN103760423BReduce mistakesMeet the needs of the projectResistance/reactance/impedenceEngineeringComputational physics
The invention discloses a method for measuring the mutual capacitance between phases of a long-distance ultra-high voltage double-circuit line on the same tower, which is a method for measuring the mutual capacitance between phases of a double-circuit transmission line on the same tower over two hundred and forty kilometers at a frequency of 50 Hz, and is also applicable to short-distance lines To measure the mutual capacitance between phases, the first step: obtain the mutual capacitance value between the two frequencies with the upper and lower absolute error values equal to the 50Hz frequency as the midpoint; the second step: add the two mutual capacitance values between the phases and divide by two, The average value of the mutual capacitance between phases at two frequencies is obtained, and the average value is the mutual capacitance between phases at a frequency of 50 Hz. Compared with the prior art, the present invention has the following advantages: the present invention changes the traditional measurement method, and considers the influence of the line to ground capacitance and the existence of power frequency interference in the wiring mode and algorithm, especially in long-distance transmission lines, using The phase-to-phase capacitance measured by the method of the invention reduces errors and satisfies engineering needs.
Owner:STATE GRID CORP OF CHINA +1
Main material of spraying film waterproofer with high extension strength and method for preparing the same
InactiveCN100395298CIncrease cross-linking pointIncreased cross-linking pointsAntifouling/underwater paintsPaints with biocidesUltimate tensile strengthAqueous solution
Owner:成都市嘉洲新型防水材料有限公司 +1
Method for determining ground mark time of inner detector of pipeline
Owner:TIANJIN UNIV
Self-locking working platform bracket for wood building engineering
InactiveCN102191854BSmall footprintEfficient use ofScaffold accessoriesBuilding support scaffoldsSmall footprintSelf locking
Owner:天津摩力达生态建筑股份有限公司
User power supply voltage and load current control device working according to electric network requirements and user need
InactiveCN101834441AReach power supplyUp to electricityReactive power adjustment/elimination/compensationReactive power compensationPower qualityEngineering
The invention relates to a user power supply voltage and load current control device working according to electric network requirements and user need, comprising a user power supply voltage control unit and a load current control unit, wherein the user power supply voltage control unit comprises a voltage transformator, a standard voltage generator, a first comparator, a first amplifier and a backcoupling transformer; and the load current control unit comprises a current transformator, a first current / voltage converter, a standard current generator, a second current / voltage converter, a second comparator, a fixing amplifier and a first coupling transformer. The user power supply voltage and load current control device is green and environment-friendly and has good quality, high efficiency, high speed, and the like, and voltage and current controlled by the user power supply voltage and load current control device can greatly increase the power quality of power supply and power utilization.
Owner:牛世斌
Novel heat preservation and insulation integrated wallboard and manufacturing method thereof
ActiveCN114105570AReduce construction difficultySimple processAuxillary shaping apparatusCement mixing apparatusHollow coreChemistry
The invention relates to the field of wallboards, and particularly discloses a novel heat preservation and insulation integrated wallboard and a manufacturing method thereof. A novel heat preservation and heat insulation integrated wallboard is characterized by comprising a concrete wall body which is formed by pouring a heat insulation concrete mixture; the heat-insulating concrete mixing material comprises the following components in parts by mass: 144-146 parts of water; 338 to 339 parts of cement; 33 to 34 parts of fly ash; and 1165 to 1170 parts of a hollow microsphere filling material. 5.2 to 5.4 parts of a water reducing agent; the surface of the hollow microsphere filler is rough; the hollow microbead filler is obtained by corroding hollow glass microbeads with a corrosive solution. The method has the effects of reducing the building construction difficulty, simplifying the construction process and shortening the construction period.
Owner:乐昌市住宅建筑工程有限公司
Magnetic levitation bridge deflection measuring device and its measuring method
ActiveCN106525366BNo elevation transfer issuesSimplify the deflection testing processElasticity measurementMeasurement deviceEngineering
The invention discloses a magnetic suspension type bridge deflection measuring device which is mainly composed of a high-precision miniature linear motor, an outer sleeve and a level adjustable mounting base. The measuring device is based on a principle of magnetic suspension, a constant vertical force is provided for a suspension mass block by using the high-precision miniature linear motor, the absolute height of suspension of the mass block is enabled to be remain unchanged, a fixed point in the deflection test is formed, the linear motor, the outer sleeve and the base move vertically along with deformation of a bridge, and the variation in relative vertical distance between the suspension mass block and the outer sleeve is measured, and the deflection of the bridge can be acquired. The magnetic suspension type bridge deflection measuring device is mainly applied to a bridge deflection test, and can accurately measure the absolute deflection of the bridge without a need of setting an external fixed point; and the magnetic suspension type bridge deflection measuring device can realize dynamic deflection measurement, and is widely applicable to the technical fields of bridge load tests, health monitoring and the like. Accordingly, the invention further establishes a corresponding measuring method.
Owner:GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
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