891 results about "Experimental Devices" patented technology

The invention discloses a simulation experiment device and method for casing drilling, and relates to an experiment device and method for simulating the smearing effect of casing drilling, and the device comprises a simulation assembly and a manifold assembly. The simulation assembly comprises an experiment kettle, a simulation piece and a casing pipe nipple, and an annular gap is defined between the simulation piece and the casing pipe nipple. The manifold assembly and the annular gap form a flow loop of drilling fluid. The manifold assembly comprises a liquid storage tank, a pump body and a material storage tank, and the pump body and the material storage tank are arranged between the liquid storage tank and the inlet end of the annular gap. Wherein the storage tank can enable the rock debris to enter the annular gap along with drilling fluid pumped by the pump body, and the simulation assembly can enable the casing pipe nipple to rotate at a preset rotating speed under a preset axial acting force under a preset experiment condition, so that the rock debris entering the annular gap forms a mud cake on the inner surface of the simulation piece. The experimental device can be used for analyzing influence factors of the smearing effect of casing drilling and guiding on-site construction of the casing drilling, so that the smearing effect of the casing drilling can play a more remarkable effect.

The invention provides an experimental device and method for simulating gas invasion well control of a complex karst cave type stratum. The device comprises a well drilling simulation system, a liquid-gas simulation system and a computer control system. The computer control system simulates an overflow and leakage coexistence scene by adjusting the well drilling simulation system and the liquid-gas simulation system, and in actual well drilling, if overflow and leakage occur, corresponding well drilling parameters can be collected according to overflow signals generated by actual well drilling; and corresponding control instructions and control parameters are output through the drilling parameters and the overflow and leakage control strategy, and the treatment effect and treatment efficiency of overflow and leakage coexistence are improved.

The invention discloses a modular tunnel fire simulation experiment device, and relates to the technical field of experiment devices, an arc-shaped metal soft bent plate is matched with a hard plate body to arrange a simulation tunnel on a rotating table; the edges of the two sides of the soft bent plate are positioned on the hard plate body; the hard plate body is provided with a plurality of fixing positions of the soft bent plate, so that the form of the soft bent plate can be adjusted as required, and experimental tunnels in various forms can be simulated as required; the modularized tunnel fire simulation experiment device not only can simulate the gradient of the tunnel and different positions and different speeds of vehicles on fire in the tunnel, but also can achieve the technical effect that the shape and specification of the tunnel for experiment can be conveniently changed according to needs.

The invention discloses a silo internal state monitoring method and an adjustable experiment device, and relates to the technical field of vertical silos, the silo internal state monitoring device comprises a silo body and a silo bottom, the silo body and the silo bottom are connected through a flange plate, a tray is arranged in the silo body, a weight is arranged above the tray, and the lower portion of the tray is in contact with bulk materials placed in the silo body. And circular grooves are formed in the wall surfaces of the bin body and the bin bottom. The detection method comprises the steps that S1, the bottom opening of the conical bin bottom is closed, materials enter the bin body through the upper opening of the bin body to be stacked, and the tray is placed on the top faces of the materials; s2, after the materials are stacked, an acoustic emission acquisition device and a pressure acquisition device are turned on to prepare to start to acquire signals; s3, a bottom opening of the conical bin bottom is opened, and sound signals and pressure signals are collected till discharging is completed; and S4, after discharging is completed, collection of the sound signals and the pressure signals is stopped. According to the invention, the fluctuation difference between the sound signal and the pressure signal is collected, and the signal characteristics are analyzed to characterize the material flow state in the adjustable silo.

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.

A physics-based network model is trained to learn weights such as trapping, detrapping, and / or transport of holes and / or electrons, as well as voltage distribution on a voxel-by-voxel basis throughout a solid-state detector model. The physics-based network may be used to estimate material property variation throughout the voxels. To reduce the number of experimental setups and information needed to train the models, the models may be trained using more easily acquired ground truth. Just the electrode signals or just the free charge data is used to train the model to characterize the solid-state detector. With this reduced data, the detector may be characterized using equivalency, such as combining multiple trapping centers to an equivalent trapping center. Regularization may be used in the loss calculation, such as where just the electrode signals are used, to deal with the reduced data available as ground truth.

The invention relates to the technical field of material mechanical property testing, and discloses a material indentation and scratch testing device and method under a composite energy field, and the device comprises a supporting experiment table, a vertical micro-motion platform, a horizontal micro-motion platform, a high-definition optical microscope, a force sensor, a displacement sensor and an additional energy field generation system. According to the method, a controllable additional energy field is synchronously applied while a mechanical indentation or scratch load is applied to a hard and brittle material sample, and load displacement data is collected in real time. In the data processing stage, the real hardness is calculated by adopting a corrected proportion sample resistance model, the elastic modulus is calculated based on the Oliver-Pharr theory, and the fracture toughness of the material is analyzed and calculated according to the size of the indentation tip crack. The problem that in-situ mechanical property characterization cannot be carried out in a composite energy field in a traditional test is solved, the hardness calculation precision is improved, the fracture toughness measurement function is expanded, and the experimental device and method are provided for research of a hard and brittle material composite machining mechanism.

The invention relates to the technical field of oil and gas field development, in particular to an ultra-deep gas well production string multi-mode leakage simulation experiment device and method. According to the technical scheme, the outer side of a shaft temperature and pressure coupling simulation system is connected with a reservoir gas supply simulation system, the middle of the shaft temperature and pressure coupling simulation system is provided with a multi-mode leakage simulation assembly, the lower end of a production oil pipe is connected with a reservoir-shaft coupling connector, and the upper portion of one side of a layered sand filling seepage tank of the reservoir gas supply simulation system is connected with a confining pressure loading unit through a pipeline; the lower portion of the layered sand filling seepage tank is connected with a reservoir fluid supply unit, and the outlet end of the layered sand filling seepage tank is connected with a reservoir-shaft coupling connector through a pipeline. The experimental device has the beneficial effects that the experimental device for coupling the reservoir and the shaft is constructed, and the multi-mode leakage simulation assembly is adopted to realize body perforation leakage simulation and screw thread sealing failure simulation, so that the simulation of the ultra-deep gas well under complex working conditions is realized, and a scientific basis and a technical support are provided for leakage prevention and control of a production string of the ultra-deep gas well.

The invention discloses an experimental device and method for positioning and artificially manufacturing fractures in a borehole and expanding the fractures. The experimental device comprises a tubular column carrier unit, and a positioning anchoring system, a mechanical fracture forming pretreatment system, a thermal shock fracturing system and a control terminal which are integrated on the tubular column carrier unit. The positioning anchoring system is used for detecting the well wall and locking the target depth and direction; the mechanical crack-making pretreatment system is used for cutting at the locking position to form an initial physical gap; the thermal shock fracturing system presets a thermal stress field through a heating assembly, and utilizes a cold shock assembly to spray low-temperature fluid to generate transient temperature difference stress to induce cracks to crack from notches and expand. And the control terminal controls the action time sequence of each system. According to the method, through the mode of mechanical drilling and thermal coupling, fixed-point and directional accurate fracture forming in a borehole is achieved, the generated fracture shape is close to that of a natural fracture, and the problems that a traditional method is inaccurate in positioning, uncontrollable in shape and large in damage to the whole sample are solved.

The utility model discloses a Bernoulli equation experimental device applied to teaching, and mainly solves the problem that the existing experimental device is large in size. The experimental device comprises a main glass tube platform, a self-circulating main glass tube which is arranged on the main glass tube platform and is provided with a plurality of bent sections, a water pump which is arranged on the main glass tube and is used for realizing fluid self-circulation, a flow meter which is arranged on the main glass tube and is used for measuring fluid flow, and a plurality of test interfaces which are arranged on the main glass tube, and the pressure measuring device is connected with the testing interface and is used for measuring fluid pressure. According to the utility model, a semi-closed fluid self-circulation structure is adopted, and the fluid self-circulation of the experimental device is realized under the action of the water pump, so that the structures such as an open water tank of the traditional Bernoulli experimental device are omitted. And compared with a long straight pipeline of traditional experimental equipment, the main pipeline is bent, so that the miniaturization of the experimental device is realized. The closed main pipeline structure also prevents the fluid from scattering in the laboratory, and ensures that the ground of the laboratory is dry and clean.

The invention relates to an experimental device for simulating dry-wet alternation and sea wave erosion corrosion and a using method, the experimental device comprises a box body, a wave making plate, a sample clamp and a central control system, the wave making plate is arranged in the box body, and the wave making plate is driven by a driving assembly to reciprocate; the sample clamp is used for clamping a metal sample, and the height of the sample clamp in the box body is adjusted through a lifting assembly. The central control system comprises a driver, an industrial control board, a computer and a wave meter, the driver, the computer and the wave meter are all connected with the industrial control board, and the wave meter is arranged in the ocean and the box body and used for collecting ocean wave parameters in the ocean and wave parameters generated by the wave generation board in real time and sending the collected parameters to the industrial control board; and the driver is used for controlling the driving assembly to act. The problem that an experimental device cannot accurately simulate the complex corrosion working condition of a steel structure in a marine environment can be solved.

The invention discloses a rock dynamic pressure-torsion experimental device and method based on a Hopkinson pressure bar, and belongs to the technical field of rock mechanics dynamic testing. The device mainly comprises a split Hopkinson pressure bar system and a spiral conversion mechanism, wherein the spiral conversion mechanism consists of a spiral (4) and a screw sleeve (5) which are meshed with each other; the screw (4) is fixedly connected with the incident rod (2), the screw sleeve (5) is fixedly connected with one end of a cylindrical rock sample (6), and the other end of the sample is fixedly connected with the transmission rod (7). The core is that the lead angle of the screw pair is greater than the equivalent friction angle of the screw pair under the impact load, so that the screw pair is ensured to be non-self-locked; and the sample (6) is of a hollow thin-wall cylinder structure. The method comprises the following steps: driving the spiral (4) to advance by utilizing axial stress waves generated by the split Hopkinson pressure bar, and driving the hollow sample to rotate by the screw sleeve in a forced constraint state, so as to synchronously apply dynamic axial compression and torsional shear combined load.

The invention relates to an adjustable experimental device for thrust testing, and belongs to the technical field of detection experimental equipment. Comprising a positioning base provided with a first positioning hole, a second positioning hole and a third positioning hole; the test fixing seat is detachably mounted on the positioning base through the first positioning hole, and the test fixing seat is provided with an accommodating space for accommodating a test workpiece; the supporting assembly is mounted on the positioning base through the second positioning hole; the first driving seat is provided with an adjusting part in a first preset direction and an adjusting part in a second preset direction; and the testing assembly is mounted in the adjusting part and the accommodating space. The method is used for solving the technical problem that in the prior art, an error is caused by a movable gap in a method that a driving positioning rod drives a driven rod to conduct clamping and positioning.

The invention discloses a device and a method for simulating huff and puff of heterogeneous reservoir sand-carrying foam. The device comprises an injection mechanism, a rock core simulation mechanism and a flowback mechanism, can realize preparation and flow distribution of sand-carrying foam, simulates heterogeneous conditions on parallel rock cores, and performs independent separation and component detection on each path of output fluid. According to the method, systematic research is carried out through the steps of establishing an initial state, carrying out benchmark comparison, optimizing flow distribution, evaluating differential influence of fluid parameters and the like. The technical problem that an existing experimental device cannot simulate heterogeneity-homogeneity is solved, the effectiveness of the flow control technology can be quantitatively evaluated, the interaction rule of a fluid formula and reservoir physical properties is revealed, and a scientific basis is provided for field yield increasing operation.

The invention provides an experimental device for simulating an indoor accelerated test of a marine environment, and belongs to the technical field of corrosion of marine engineering equipment. The device comprises a shell, a seawater flowing module, a clamping device, an ultraviolet illumination device, a salt mist device, a monitoring module and a control system, can truly simulate the marine corrosion environment of marine device operation, and can perform tests on the marine corrosion environments of different corrosion areas such as an atmospheric area, a spray splashing tidal area and a total immersion area in the same time and space. And in the same space environment, experimental errors caused by different experimental devices or misoperation can be avoided, and the authenticity and reliability of experimental results are improved.

The invention relates to the technical field of material permeability experiment devices, in particular to a microscopic seepage model simulation device which comprises a clamping assembly, a box body with an upward opening and an upper gland with a transparent observation window in the middle. The device is reasonable and compact in structure and convenient to use, sandstone particles can be compressed in the simulation bin through the upper gland, and a simulated sandstone layer with the same structure as an oil reservoir stratum sandstone is formed; the seepage liquid can more uniformly enter the vertical micropores in the rectification strip through the left diversion trench, and the horizontal micropores communicated with the vertical micropores can enable the seepage liquid to uniformly flow into the simulation bin from the right side surface of the rectification strip in a layered manner, so that the seepage liquid can flow in parallel in the simulative sandstone layer; therefore, the seepage liquid can simulate one-dimensional linear flow in the simulated sandstone layer, the situation that the seepage liquid has excessive turbulent flow to influence an experiment result is avoided, the flowing state of deep stratum fluid laminar flow can be simulated more truly, and a better experiment result is obtained.

The utility model relates to an insect olfaction behavior experimental device, and relates to the technical field of insect behavior research. According to the main technical scheme, the insect olfactory behavior experimental device comprises a first chamber and an experimental chamber. Wherein the first chamber is used for breeding insects; the experiment chamber is used for performing an insect olfactory behavior experiment; the experiment chamber comprises a second chamber which is used for providing free activity space for the insects so as to be used for the olfactory behavior experiment of the insects; wherein the first chamber and the second chamber are separated by a movable door; wherein the movable door is opened, so that the first chamber is communicated with the second chamber, and the insects bred in the first chamber are released into the second chamber. The device is mainly used for solving the technical problems that in the prior art, when insects are taken into an experimental device, mosquitoes can be damaged, and experimental results are affected, the device integrates the olfactometer and the wind tunnel, and wind tunnel testing and selection behavior testing can be achieved at the same time.

The utility model relates to the field of simulation of pile foundation hydraulic erosion, in particular to a transparent soil experimental device for simulating pile foundation hydraulic erosion, which comprises an experimental box, a sealing gate is slidably connected to one side of the top end of the experimental box, and a storage tank is arranged inside the experimental box close to the right side of the sealing gate. A CCD camera and a laser generator are driven by a moving block to move, so that when the flow field form of the horizontal section is researched, the CCD camera is matched with the laser generator to shoot from top to bottom, and when a positioning rod is embedded into a second positioning hole under the action of a tension spring and rotates on the outer wall of a stud through a threaded cylinder, the CCD camera and the laser generator can shoot from top to bottom. In this way, the CCD camera and the laser generator are fixed to the front side of the experiment box, the CCD camera and the laser generator are made to be perpendicular to the front side of the experiment box, when the form of a vertical section flow field is researched, the CCD camera and the laser generator are used for capturing pictures of transparent debris flow, in conclusion, the positions of the CCD camera and the laser generator can be conveniently adjusted according to experiment requirements, and operation of experimenters is facilitated.

The invention relates to the technical field of micro-nano-scale dynamic testing, and discloses a high-rigidity cantilever beam oscillation starting device, which comprises a cantilever beam placing frame, an oscillation starting device and a vibration starting device, the displacement module is provided with an experiment probe used for being in contact with the high-rigidity cantilever beam; the downward pressing control module is connected with the displacement module and used for controlling the experiment probe to execute downward pressing loading action so as to enable the high-rigidity cantilever beam to deform and then execute rapid separation action; and the data acquisition module is used for acquiring a free vibration signal generated by the high-rigidity cantilever beam after the experimental probe is separated from the high-rigidity cantilever beam. A set of experimental device combining a displacement table, piezoelectric ceramics and an experimental probe is designed. The displacement table has multi-degree-of-freedom and high-resolution displacement output capacity, the experimental probe can be quickly moved to a target area, piezoelectric ceramics are high in response frequency and high in stretching speed, and remarkable deformation can be generated in a short time.

This invention discloses a multi-motion mode high-temperature liquid metal environment micro-motion abrasion experimental device, comprising: a frame, which serves as a support; a melting vessel unit, which is disposed on one side of the frame and is used to melt solid metal into liquid under preset conditions; an experimental vessel unit, which is disposed on the other side of the frame and is used to construct a sample for micro-motion abrasion experiments in a liquid metal environment; and a connecting pipe unit, which is used to guide the molten liquid metal in the melting vessel unit into the experimental vessel unit.

The utility model discloses an auxiliary device for achieving simultaneous single-photon and double-photon imaging of the brain and the spinal cord of a mouse, and relates to the technical field of experimental devices.The auxiliary device comprises a brain imaging auxiliary plate, a spine clamping piece and a spinal cord imaging auxiliary plate, a first water containing groove is formed in the middle of the brain imaging auxiliary plate, and a brain imaging auxiliary piece is fixed to the brain of the mouse in an adhesive mode; the spine clamping piece comprises a clamping bottom plate and a pair of clamping plate assemblies, and the clamping plate assemblies can get close to each other in the same direction and get away from each other in opposite directions to clamp and loosen the spine of the mouse; the spinal cord imaging auxiliary plate is detachably arranged on the clamping plate assembly, and a second water containing groove is formed in the middle of the spinal cord imaging auxiliary plate. The brain imaging plate is attached and fixed to the brain of the mouse, the spine clamping piece clamps the spine of the mouse, the spinal cord imaging auxiliary plate is fixed to the spine clamping piece, the spinal cord imaging auxiliary plate is attached to the spine of the mouse, the first water containing groove and the second water containing groove are used for containing water, and therefore groove milling in the skull and the spine of the mouse can be avoided; and the operation difficulty and the operation risk are greatly reduced.

The utility model discloses an experimental device for anti-explosion protection of an arch dam, and belongs to the field of simulation explosion tests. The experimental device comprises a fixing mechanism, an explosive module, a displacement sensor module and an acceleration sensor module, wherein the fixing mechanism is used for supporting a high polymer plate; the explosive module is arranged above the high polymer plate and is used for carrying out an anti-explosion test on the high polymer plate; the displacement sensor module and the acceleration sensor module are fixedly mounted on the high polymer plate; the shock wave sensor modules are symmetrically arranged on the two sides of the high polymer plate. According to the experimental device, shock wave sensor modules are installed on the upper side and the lower side of a high polymer plate, an explosive module is installed above the high polymer plate, the explosive module is detonated through an exploder, shock waves on the explosion facing face and the explosion backing face of the high polymer plate are detected through the shock wave sensor modules on the two sides, and displacement data are tested through a displacement sensor module. Acceleration data are tested through the acceleration sensor module, so that comprehensive anti-explosion analysis is carried out on the high polymer plate, and the method is more comprehensive and fine.

This invention relates to the field of research on the operational characteristics of overpressure relief devices, and particularly to an experimental device for measuring the operational characteristics of overpressure relief devices under water hammer conditions. The device includes: a high-pressure air compressor, a frame, a piston accumulator, a quick-opening device, a high-pressure test assembly, and a high-frequency dynamic pressure sensor. This invention enables the measurement of operational characteristics under different pressure rise rate loads caused by water hammer phenomena on a test bench, providing an experimental platform for the research on the operational characteristics of overpressure relief devices under high pressure rise rates. The overall device is simple, quick, and stable. It effectively solves the problem of applying high pressure rise rate loads in current overpressure relief device operational characteristic measurement tests, overcomes the danger of using combustible gas explosions as pressure sources in existing operational characteristic measurement tests, and overcomes the shortcomings of existing test methods, such as long testing times, the need to calculate gas explosion pressure, and the difficulty in accurately controlling the pressure rise rate.

The invention discloses an inclination-angle-adjustable physical similar simulation experiment device which comprises an experiment platform base, the experiment platform base is fixedly connected with a rotating support, a frame is arranged above the rotating support, the rotating support is rotationally connected with the lower end of the frame, the experiment platform base is rotationally connected with an inclination angle adjusting oil cylinder, and the inclination angle adjusting oil cylinder is connected with an inclination angle adjusting oil cylinder. The output end of the inclination angle adjusting oil cylinder is rotationally connected with the end, away from the rotating support, of the frame. Stand columns are fixedly arranged at the two ends of the experiment platform base in the length direction and located on the two sides of the frame respectively, two baffle sets are arranged between the two stand columns and located on the two sides of the stand columns in the width direction respectively, each baffle set comprises a plurality of baffles abutting against the frame, and the two ends of each baffle are detachably connected with the two stand columns respectively. According to the application, when the simulated coal seam has an inclination angle, a rock stratum structure gliding phenomenon does not exist, vertical pressure application can be maintained, and the accuracy and reliability of experimental data of the experimental device are improved.

The invention discloses a double-layer multi-leaf collimator detection experiment device, and belongs to the technical field of medical instruments, the double-layer multi-leaf collimator detection experiment device comprises a rack, the upper portion of the rack is rotatably connected with a turning plate, and the rack is fixedly provided with a power device used for driving the turning plate to rotate; trundles are fixedly assembled at the bottom of the rack; a rotation assembly is installed on the turning plate, the double-layer multi-leaf collimator is assembled on the rotation assembly, and the double-layer multi-leaf collimator can be driven by the rotation assembly to rotate in the plane where the turning plate is located. Revolution, rotation and three-axis linkage spherical motion of a treatment head of a full-circle spherical accelerator can be comprehensively simulated, so that all-directional performance detection of a double-layer multi-leaf collimator before installation is realized.

The application discloses an experimental device containing a uniform distribution gyro truss structure, which comprises a first connecting piece, a first rod, a rotor, a brushless motor, a motor connecting plate and a truss fixing plate. The first connecting piece and the second connecting piece are both assembled into the end face of the free end of the gyro truss structure through interference fit with the first rod, the second rod and the third rod. The four interface nodes of the first connecting piece and the second connecting piece are connected respectively. The third connecting piece and the fourth connecting piece are assembled into the gyro truss unit through interference fit with the first rod, the second rod and the third rod for multiple times. Each gyro truss unit is connected into the main body structure of the truss in the form of module. The brushless motor adds angular momentum to the truss structure. The vibration of the truss is suppressed through the uniform distribution gyro truss structure, which belongs to passive control. Compared with the PID control mode, the application has the advantages of quick reaction, low cost and fast effect.

The invention discloses a split Hopkinson pressure bar automatic experiment device based on a multi-axis manipulator and an inflatable plug, the split Hopkinson pressure bar automatic experiment device comprises a rack, a gas gun, a shaper, an incident bar, a transmission bar and a fastener, the multi-axis manipulator is arranged on the side of the gas gun, and a polishing piece, a negative pressure adsorption piece and a clamping piece are integrated at the tail end of the manipulator; an inflatable plug with an air bag is arranged, the plug is provided with an auxiliary air channel and a main air channel, the auxiliary air channel inflates the air bag to seal an outlet of the bore, and then compressed air is introduced into the main air channel to push the bullets back to a firing position; the device sequentially completes end face polishing, reshaper automatic pasting and bullet automatic resetting, full-process automation of experiment preparation and post-treatment is achieved, and manual tweezers pasting and long rod bullet retreating operation can be replaced.