23results about How to "Experimental data is reliable" patented technology

The invention relates to the technical field of asphalt smoke detection, and discloses an asphalt smoke preparation and collection device and method under simulated mixing conditions. The device comprises a reactor, a filter and a receiving bottle, the reactor comprises a heating furnace, the upper side of the heating furnace is fixedly provided with a tank body, the axis of the tank body is fixedly provided with a central shaft, the surface of the central shaft is rotatably provided with a stirrer, and the end part of the tank body is fixedly provided with a servo motor. According to the device, the arc-shaped plate in circular motion is arranged in the reactor, the arc-shaped plate not only has the function of stirring asphalt, but also has the functions of promoting external air to enter the reactor and promoting asphalt smoke in the reactor to be discharged, so that the air speed condition is omitted, and the simulated mixing condition of asphalt smoke preparation is closer to the condition of on-site asphalt smoke collection; the influence of the airspeed condition on the asphalt smoke release amount is reduced, the calculation error of the asphalt smoke mass is reduced, and the experiment accuracy is improved.

The invention discloses a high-voltage cable buffer waterproof layer ablation experiment device and experiment method, and belongs to the field of high-voltage cable experiments. The aluminum sheath assembly comprises an aluminum sheath and a sheath support, wherein the aluminum sheath is mounted on the sheath support; the insulating plate assembly comprises a metal plate and a metal plate support, the metal plate is located on one side of the aluminum sheath, the surface of the metal plate is roughly parallel to the extension direction of the aluminum sheath, the metal plate is formed by splicing a plurality of metal plates, and the metal plate support is provided with an adjusting structure used for adjusting the relative distance between the metal plate and the aluminum sheath; the buffer waterproof layer is located between the metal plate and the aluminum sheath. According to the invention, ablation reproduction of the buffer waterproof layer of the high-voltage cable in a laboratory can be realized, research related to ablation can be carried out, effective data can be provided for research of the high-voltage cable, theoretical guidance can be provided for actual production, and safe operation of a power system can be guaranteed.

The invention relates to a deep-sea mining flexible mixed transportation pipe pneumatic lifting experiment system and method, the system comprises an air compressor, a pneumatic pump, a transparent experiment pipeline, a camera, a mixing chamber, a three-phase separator, a premixing distributor and a water tank, and a flowmeter is connected between the pneumatic pump and the air compressor; the top and bottom ends of the transparent experimental pipeline are respectively connected with a three-phase separator and a pneumatic pump, a pressure sensor and a particle concentration detector are arranged in the transparent experimental pipeline, and a camera is arranged outside the transparent experimental pipeline; the mixing chamber is connected with a pneumatic pump and is provided with a liquid level meter and a particle concentration detector; the solid collecting box and the liquid collecting box are respectively connected with the three-phase separator and are respectively provided with a liquid level sensor and a weighing sensor; the premixing distributor and the water tank are respectively connected with the three-phase separator and the mixing chamber; the particle concentration detector, the weighing sensor, the camera, the pressure sensor, the liquid level meter, the flow meter, the liquid level sensor and the premixing distributor are respectively connected with a computer; feeding concentration and bubble characteristics can be controlled, and the pneumatic lifting efficiency of the deep-sea mining pipeline can be improved through cyclic lifting experiments and research.

The invention discloses a method for simulating phosphorus and chromium migration during farmland irrigation with acid mine wastewater, which comprises the following steps: mixing a plant-derived organic material with deionized water to obtain a soluble organic matter; h2O2 oxidizes Fe < 2 + > to prepare pure Schwertmannite, and the pure Schwertmannite is placed in a phosphate solution to obtain phosphorus-loaded Schwertmannite; mixing the phosphorus-loaded Schwertmannite and the soluble organic matter with a chromate solution, carrying out oscillation adsorption, carrying out solid-liquid separation after adsorption, carrying out CrO and POconcentration change test on filtrate, and carrying out mineral characterization on separated solids; a three-dimensional fluorescence spectrum is adopted to track composition conversion of the soluble organic matter in the reaction process; and analyzing the component change of the supernate before and after the reaction by adopting Fourier transform ion cyclotron resonance mass spectrometry. The influence mechanism of DOM on phosphorus and chromium fate in mineral / water interface molecular fractionation is disclosed from the molecular level, and a scientific basis is provided for collaborative migration risk assessment of phosphorus and heavy metal in acid mine wastewater irrigation area farmland.

This utility model relates to the field of rat smoking technology and discloses a rat smoking device, including a smoking chamber, a three-way valve, a smoking chamber, and an extraction and delivery component. The three ends of the three-way valve are detachably connected to a first hose, a second hose, and a third hose, respectively. The first hose is detachably connected to the smoking chamber. The smoking chamber is detachably connected to the third hose, and the smoking chamber can be used for burning cigarettes. The extraction and delivery component is detachably connected to the second hose and is used to draw the smoke from the burning cigarette in the smoking chamber through the third hose, the three-way valve, and the second hose. This utility model proposes a rat smoking device that generates smoke through the smoking chamber, which is then delivered to the smoking chamber via hoses and a three-way valve to smoke the rats, simulating the smoking process and avoiding experimental errors. Simultaneously, fresh air is introduced and smoke is expelled, simulating a natural smoking environment, diluting the smoke concentration, ensuring the survival safety of the rats, extending the smoking time, and obtaining more data on the chronic development of COPD.

The utility model relates to the technical field of analysis experiments, and discloses a multi-sample reaction device for a laboratory, which comprises a water bath heating box, a magnetic stirring main body, a reaction bottle fixing chassis and a fixing bracket main body, and the magnetic stirring main body is fixed at the bottom of the water bath heating box; the reaction bottle fixing chassis is mounted on the magnetic stirring main body; a fixed bracket is mounted on the right side of the water bath heating box; a connecting rod is mounted on the fixed bracket; one end of the connecting rod is connected with the fixed bracket, and a plurality of reagent tube slots with fixed tube sleeves are uniformly formed in the connecting rod at intervals; a reagent tube with a cock is placed on the reagent tube slot; the plug cock is connected through a plug cock supporting rod; and one end of the cock supporting rod is connected with the fixed bracket. The multi-sample parallel experimental device is simple in structure and convenient to use, parallel experimental operation and experimental condition screening research of multiple samples can be completed at the same time, influences of objective conditions such as asynchronous experimental steps, operation differences of experimenters and unbalanced experimental temperatures are eliminated, and result accuracy is ensured.

The utility model provides a height-adjustable lattice type composite beam bearing plate, which comprises a reinforced concrete structure bottom plate, a lattice type steel beam and a U-shaped buckle support, the U-shaped buckle support is fixed on the reinforced concrete structure bottom plate, and the lattice type steel beam is inserted on the U-shaped buckle support and is fixed through a shear bolt. According to the utility model, the height of the lattice type steel beam is adjusted to ensure that the rigidity of the reinforced concrete structure bottom plate meets the maximum test load. The insertion depth is determined according to the test foundation pressure, and then the anti-shear bolts are used for fixing. The lattice type steel beam at the upper part uniformly transmits the load to the bottom plate of the reinforced concrete structure at the lower part according to the determined rigidity, so that the periphery of the bottom plate of the reinforced concrete structure is prevented from warping, the stability and the safety of the whole structure are ensured, and more real and reliable experimental data are measured.

The invention relates to the technical field of experiment devices, and discloses a phased array demonstration experiment device based on water surface waves and an operation method thereof.The phased array demonstration experiment device comprises a miniature image calculation terminal and a box body, and the box body comprises an upper bearing box and a lower supporting box fixedly connected with the upper bearing box; the connecting surface of the upper bearing box and the lower supporting box is a transparent material plate; a light source module is arranged at the top of the upper bearing box, a hollow cavity is formed in the upper bearing box, a water wave medium module, a wave absorbing module and a point wave source generating device are arranged in the hollow cavity, and the water wave medium module comprises a transparent water cylinder and water arranged in the water cylinder; a camera is arranged at the bottom of the lower supporting box, a semi-transparent and semi-reflecting glass mirror is obliquely arranged in the lower supporting box, and a curtain is arranged on the side wall of the lower supporting box. The device adopts water waves as a medium, and simulates and displays wavefront deflection changes of a plurality of electromagnetic wave sources caused by adjustment and control of phase differences in real time through superposition and interference phenomena of water surface waves.

The application relates to the battery technical field, in particular to a single cell expansion effect testing device. The single cell expansion effect testing device comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are clamped on the two sides of the thickness direction of a single cell, the first clamping plate is provided with first sliders slidable along a second direction on the two sides along a first direction, the second clamping plate is provided with second sliders slidable along the second direction on the two sides along the first direction, the first sliders and the second sliders on the same side are connected with fasteners, the first clamping plate and the second clamping plate clamp the cell, the state that the single cell is clamped between other two cells in a battery pack is simulated, and the position of the fastener can be adjusted according to simulation results, so that the expansion effect of the single cell in the actual use of the battery pack is effectively simulated, the effect of the equivalent battery pack is achieved, the safety and reliability of the battery are more accurately evaluated, and the test cost is effectively reduced.

This utility model discloses an adjustable ball bearing lever, including a base, an upper mounting cylinder, a support rod inserted into the mounting cylinder, a fixing post on the outer wall of the support rod, and a lever arm on the outside of the fixing post. The lever arm consists of two levers and a fixing block, which are connected to a screw via connecting bolts. A ball bearing body is threaded through the fixing block and fitted onto the outer wall of the fixing post, which is secured by fixing bolts. This utility model utilizes a modular aluminum rod of suitable length and specifications, which is then assembled according to design requirements to form the main structure of the lever, ensuring a stable connection. A colored scale device is accurately fixed to the lever using colored marking strips to ensure clear and precise graduations, facilitating subsequent lever arm measurement. Alternatively, the graduations and colored marking blocks can be pre-engraved on the lever at the factory.

The invention discloses a low-air-pressure insulation support direct-current pollution flashover experiment testing device and method. The device comprises a voltage-multiplying rectification direct-current power supply and an artificial climate chamber. The method comprises the following steps: pretreating a test sample, and removing lipid substances and other dirt residues by using an absolute ethyl alcohol solution; the contamination method of the test sample comprises the following steps: simulating contamination by adopting a solid layer method, simulating soluble substances by using NaCl, and simulating insoluble substances by using kaolin; drying the sample in the shade, and standing for 24 hours until a surface dirt layer is dried; when a low-pressure environment is generated, putting the test sample into an artificial climate laboratory, and after determining that the artificial climate laboratory is completely sealed, starting to exhaust until a target pressure is reached; wetting the test object, namely wetting a dirt layer of the test object insulator by adding steam mist into the climate chamber; and pressurizing operation is carried out, pressurizing is started to carry out a flashover test when sufficient wetting is carried out, and the pressurizing method is a uniform pressurizing method. The method has the advantages that by considering that a low-air-pressure area in China is inland and natural contamination components are not single, the contamination process is simulated by adopting a solid layer method, the simulation environment of a test sample is closer to a real environment, and the experiment is more accurate; by utilizing the automatic control of the phytotron, the air pressure value of the environment where the test object is located can be more accurately controlled, so that the low-pressure environment is more truly simulated, and a technical means is provided for an external insulation low-pressure discharge test.

The application discloses biomarkers for atherosclerosis diagnosis and application thereof. The biomarkers for atherosclerosis diagnosis include any one or any combination of PG(38:7), PG(34:2), PG(34:3), PG(38:6), PG(36:6), PG(38:5), PG(36:3) and PG(36:4). The biomarkers provided by the application have a strong correlation with advanced atherosclerotic plaques, and can be used for diagnosis and experimental research of atherosclerosis, especially advanced atherosclerotic plaques.

This invention relates to an apparatus and method for the efficient capture of iodine-containing exhaust gas, comprising a tower system, a gas supply system, an absorbent system, an exhaust gas detection system, and a control system. Iodine-containing exhaust gas enters from the bottom of the tower system via the gas supply system and flows upward within the tower. The absorbent system enters from the top of the tower system via a nozzle and flows downward. The two gases come into countercurrent contact within the tower. Sodium hydroxide in the absorbent reacts with iodine in the exhaust gas to form iodide, thus converting iodine from the gas phase to the liquid phase, achieving iodine absorption and capture. After absorption and capture, the exhaust gas passes through a demisting section to capture entrained droplets before being discharged from the top of the tower system. The exhaust gas detection system measures the concentration of iodine in the exhaust gas. This method enables efficient gas-liquid contact and mass transfer, and achieves constant-temperature circulation and composition control of the alkaline solution. Through optimized tower structure and control system, it achieves stable and efficient capture of iodine from iodine-containing exhaust gas, possessing good potential for scientific research verification and engineering scale-up.

The utility model discloses a pile foundation anti-pulling detection device which comprises a machine frame and further comprises a sliding groove formed in one side of the machine frame, a lead screw is arranged in the sliding groove, one end of the lead screw is connected with a motor, a sliding base is installed on the lead screw, a jacking mechanism is connected to the sliding base, a pressing mechanism is installed below the jacking mechanism, and a limiting mechanism is installed on one side of the jacking mechanism. During construction, the device is lifted to the position above a pile foundation by a crane and slowly falls down, the motor is started by adjusting the general direction through the sliding seat, and when the baffle is in contact with the pile body, the prompt rod extending out of the position above moves along the buffer groove, the motor is closed and the device is put down, so that the pile body can be aligned once the motor is switched on and off during construction, and the construction progress is accelerated; the buffer groove can prevent the baffle from being excessively pushed to be broken, the pressing mechanism is controlled to move downwards, the hydraulic cylinder is started to be pressed to the surface of the pile body after the baffle reaches the detection position, uplift detection of the pile foundation is started, the opposite pressing plate reduces single-side uneven stress of the pile body in the detection process, and experimental data are accurate and reliable.

The utility model discloses an indoor simulation device for pipeline deformation under active instability of a self-balancing shield excavation face. The indoor simulation device comprises a test module and a monitoring module. The uncovered test box body is made of a transparent organic acrylic glass plate, and a round hole and a square hole are formed in the front face of the model box and used for fixing a model tunnel and shield tunneling. And the shield tunneling device is provided with a connecting screw rod, a hexagon nut is screwed into one side of the connecting screw rod, and active instability of the tunnel excavation face is controlled by rotating the hexagon nut. A reaction frame is arranged on the front side of the test box body, one side of the reaction frame makes contact with the threaded rod, and reaction force is generated and provided for the piston rod to drive the supporting plate to retreat. And the monitoring module comprises a strain gauge, a settlement rod, a dial indicator, a thin film pressure sensor, a control circuit board, a static stress-strain test analysis system and a real-time monitoring computer. The device has the advantages of simple structure, convenience in installation, capability of reducing the workload of experimenters, capability of improving the test efficiency, real and reliable experimental data, real-time monitoring and the like.

The present invention discloses a microsecond vacuum arc ion source energy spectrum analyzer device, including a metal shell, the top of the metal shell has a top opening, the bottom has a concave bottom fixed cylinder with an opening toward the top, and a circular ring is arranged at the opening of the concave bottom fixed cylinder; the inside of the metal shell is sequentially provided with an extraction electrode, a grid, a collector, and a plurality of insulating limit plates separating and fixing the extraction electrode, the grid, and the collector, and a cavity is formed between the plurality of insulating limit plates. This analyzer device adopts a nearly all-metal shell design, which can shield the influence of external electromagnetic fields to the maximum extent. For example, the pulsed high-voltage electric field generated by the discharge of the vacuum arc ion source may affect the diffusion of the plasma and the measurement of the ion flow, and this analyzer device can shield the external electromagnetic field as much as possible to obtain more accurate measurement results.

The invention discloses a device for measuring the reoxygenation rate of the surface layer of a reservoir and a using method thereof.The device for measuring the reoxygenation rate of the surface layer of the reservoir is characterized in that the device comprises an experimental device, the experimental device comprises a cylinder, at least two buoys and a DO measuring probe, the edge of a top opening of the cylinder is fixed by a top steel coil, the edge of a bottom opening of the cylinder is fixed by a bottom steel coil, the side surface and the bottom of the cylinder are sealed by white polyethylene plastic cloth, and the cylinder is used for collecting surface water of a reservoir. According to the device for measuring the reoxygenation rate of the surface layer of the reservoir and the using method of the device, the device can fully reflect natural actual conditions and simulate the natural wind speed and water speed reoxygenation process, meanwhile, manufacturing is easy, operation is easy, stability and reliability are achieved, experimental data are accurate and reliable, the device is flexible and convenient to carry, flexible combination and adjustment can be achieved according to experimental requirements, and the application range is wide. Wide application prospects are realized.

A test device for simulating ship lock valve flow-induced vibration disclosed by the present invention comprises a water circulation system, a flow-induced vibration test device and a synchronous measurement system, the water circulation system comprises test water tanks located at the left and right sides, and the opposite sides of the bottoms of the test water tanks are communicated with a water delivery gallery made of a transparent material; the flow-induced vibration test device is arranged in the middle of the water delivery gallery, the flow-induced vibration test device comprises a valve simulation piece located in the middle of the water delivery gallery, the upper end of the valve simulation piece is connected with a hoist above, and acceleration sensors are distributed on the valve simulation piece; the synchronous measurement system comprises a vibration analyzer and a control computer. The invention further discloses a test method based on the test device. The working characteristics of the water-saving ship lock water delivery gallery valve can be simulated, the acting force of the complex flow state of water flow on the valve structure is analyzed, the stability of the valve structure is evaluated, and theoretical basis and optimization suggestions are provided for practical engineering application.

The invention relates to the technical field of experimental instruments, in particular to a shale gas content physical simulation device and method. The shale gas content physical simulation device comprises a reference tank, a sample tank, a constant temperature box, a gas increasing mechanism, a vacuum mechanism, a back pressure mechanism, a gas volume measuring mechanism and a computer. A high-precision pressure sensor is adopted, the pressure change in the system can be accurately measured, the gas inlet pressure is controlled through the arrangement of a gas increasing mechanism, the pressure drop change in the coring process can be accurately simulated through the arrangement of a pressure return mechanism, the whole simulation is closer to the real situation, and the shale sample is small in gas content, so that the coring accuracy is improved. The desorption is a long process, the gas volume measuring mechanism can be used for collecting the volume change condition of tiny gas, the experimental data is more reliable, and in conclusion, when the method is used for measuring the gas content of the shale, the experimental data is more accurate.

This invention discloses a thin film tension testing mechanism, comprising a frame, a take-up roller, an unwind roller, a pressure roller assembly, and a pressure sensing roller. After being unwound by the unwind roller, the thin film is sequentially wound around a pressure sensing roller on one side, the pressure roller assembly, and a pressure sensing roller on the other side before being connected to the take-up roller. The pressure roller assembly includes a hollow, rotatable wheel and a support shaft fixed to the frame. The wheel is rotatably mounted on the support shaft. A mounting bracket is fixedly installed on the support shaft, and at least one non-contact sensor is mounted on the mounting bracket. A detection window is provided on the circumferential wall of the wheel, through which the detection end of the non-contact sensor points towards the thin film. The rotatable wheel and the support shaft fixed to the frame ensure smooth rotation and transmission of the thin film, enabling successful acquisition of dynamic response data of the film thickness under stress, providing reliable experimental data for material research.

The utility model discloses a quantitative sampling device for a detection reagent, and belongs to the technical field of detection reagents. Comprising a sampling pipe, a lifting structure is arranged on the sampling pipe and used for moving the sampling pipe in the vertical direction, the sampling pipe is of a cavity structure, a piston is slidably arranged on the inner wall of the cavity structure, a push rod is fixedly arranged on the piston, the push rod extends to the outer side of the sampling pipe and is fixedly provided with a handle, and a quantitative plate is arranged on the inner wall of the cavity structure. The piston can abut against the quantifying plate, and a limiting guide structure is arranged on the sampling pipe and used for limiting and moving the quantifying plate. According to the utility model, the piston is driven to move through the push rod, so that the sampling needle extracts the reagent into the sampling tube, and when the piston is propped against the quantitative plate in the sampling process, the extraction of the reagent by the piston can be stopped, and the sampling amount each time is accurate and consistent.

The present invention belongs to the technical field of detonation experiments, and in particular, relates to a system and method for accelerating the attenuation of a combustion wave. The system for accelerating the attenuation of a combustion wave of the present invention comprises a high-energy igniter, an air charging module, a detonation tube and a rapid attenuator of a combustion wave, wherein the air charging module is used to supply explosion source gas into the detonation tube, the high-energy igniter is fixedly arranged on the first end of the detonation tube, and the rapid attenuator of the combustion wave comprises an attenuation tube, an explosion venting plate, a cooling module, a buffer plate, a pressure relief valve and a gas buffer tube. When in use, the detonation wave can be weakened by the explosion venting plate and the cooling material, and the detonation wave can be rapidly attenuated into a combustion wave during the whole process, and the combustion wave can be rapidly attenuated and extinguished, thereby helping to more accurately reveal the growth mechanism of nanomaterials prepared by gas phase detonation, and providing more real and reliable experimental data for further improving the research on the growth mechanism of nanomaterials prepared by gas phase detonation method.

The invention discloses a high-temperature magnetic fluid experimental loop suitable for the study of advanced blanket of fusion reactor, including a lithium-lead loop, a thermal oil loop, a cooling water loop and a gas path. Under the synergistic effect of a heater, a superconducting magnet, an experimental section, a mixer, a regenerator, a lithium-lead-thermal oil cooler, a thermal oil-water cooler, a cold trap, an expansion tank, a melting tank, a lithium-lead storage tank and a mechanical pump, liquid lithium-lead with high parameters such as temperature and flow rate can be obtained. There are experimental section channels in both horizontal and vertical directions inside the superconducting magnet, and the surface of the experimental section is covered with a heating plate, which can study the flow heat transfer characteristics of the advanced blanket of fusion reactor with high Reynolds number and high Hartmann number under the multi-field coupling effects such as magnetic field, thermal field, flow field and gravity field, and provide reliable experimental data for the design of advanced blanket of fusion reactor.