80 results about "Pressure experiment" patented technology

The utility model relates to a salt cavern sediment gap energy storage simulation experiment device, and belongs to the technical field of salt cavern sediment gap energy storage experiment equipment. The salt cavern sediment gap energy storage simulation experiment device comprises two groups of normal pressure experiment containers, a pressure-resistant experiment container, a gas storage bottle, a water storage tank and a gas-liquid separator, the two groups of normal-pressure experiment containers are connected with each other through a communicating short circuit; the gas storage bottle is connected with a gas-liquid separator through a flow controller A and a gas injection valve A; one end of the gas-liquid separator is connected with the upper ends of the normal-pressure experiment container and the pressure-resistant experiment container through switch valves which are connected in parallel; and the outlet ends of the communicating pup joint and the pressure-resistant experiment container are respectively connected with a liquid phase pipeline through a control valve. The simulation experiment device is compact in structure and ingenious in design, solves the problems that in an existing salt cavern energy storage simulation experiment, an experiment under pressure cannot be carried out, and the experiment function is single, and is particularly suitable for being used in a salt cavern sediment gap energy storage simulation experiment.

The invention belongs to the technical field of deep coal bed gas development, and particularly relates to a visual simulation device and method for gas and water flow behaviors in deep coal reservoir microfracture.The device comprises a transparent high-temperature and high-pressure experiment cavity used for containing a sample; the outlet end of the gas-water injection-output system is communicated with the inlet end of the transparent high-temperature and high-pressure experiment cavity, and the inlet end of the gas-water injection-output system is communicated with the outlet end of the transparent high-temperature and high-pressure experiment cavity; the temperature and pressure control system is arranged in the transparent high-temperature and high-pressure experiment cavity and used for controlling the temperature and pressure of the transparent high-temperature and high-pressure experiment cavity; and the external visual equipment is positioned on the outer side of the transparent high-temperature and high-pressure experiment cavity, faces the sample, and is used for observing and recording the flowing behavior of gas and water in the sample. The invention further discloses a using method of the device. According to the invention, the real migration process of gas and water in the microfissure can be observed and monitored in real time.

A temperature-adjustable basin-type insulator scale model experiment device belongs to the technical field of power equipment and comprises a high-pressure experiment tank body, a temperature adjusting device, a temperature monitoring unit, a temperature feedback control unit and a multi-signal detection unit. A plurality of sensors are combined to synchronously detect discharge signals, discharge characteristics of different signals are obtained, the influence of the temperature on the electrical performance of the basin-type insulator can be explored, meanwhile, research on the insulation failure mechanism of power equipment in a low-temperature environment is facilitated, and the simulation detection integrated device is convenient and reliable.

The invention relates to the field of high-pressure pressure distribution calibration and imaging, in particular to a high-pressure diamond anvil cell internal pressure calibration / imaging system and method based on wide-field optical detection magnetic resonance. The invention discloses a high-pressure diamond anvil cell internal pressure calibration / imaging system based on wide-field optical detection magnetic resonance. The system comprises a fluorescence excitation and collection unit which comprises a wide-field optical detection magnetic resonance pressure distribution imaging light path based on nano-diamond NV color center fluorescence and a pressure calibration light path based on a ruby microsphere fluorescence spectrum. Compared with the prior art, the technical effects of the invention are that a traditional single-point detection mode is broken through through a wide-field microscopic imaging method, submicron spatial resolution and 0.0045 GPa / Hz1 / 2 noise measurement sensitivity are realized, and a brand new stress field characterization means is provided for a high-pressure experiment.

The invention discloses an experimental device and method for simulating rat reproduction influence under exposure of a low-pressure anoxic environment, relates to the technical field of reproduction influence experiments, and provides the following scheme that the experimental device comprises a low-pressure experimental module fixed on the ground and a vacuum pump erected on the top surface of the low-pressure experimental module, the extraction end of the vacuum pump penetrates into an inner cavity of the low-pressure experiment module through a pipeline, a hatch is formed in the left side of the low-pressure experiment module, and a hatch door is installed on the end face of the hatch through a hinge. According to the technical scheme, by simulating the day and night temperature difference at the altitude of 4000 m and 6000 m and 12 DEG C / 2 DEG C in the low-pressure experiment module and simulating the plateau environment to feed rats, the plateau low-oxygen exposure environment can be closer to the plateau low-oxygen exposure environment, and by conducting slice detection on testicular tissue of the test rats, damage data of the low-pressure low-oxygen exposure environment to the male reproductive system is obtained. Therefore, the method has certain good reproducibility on reproductive system injury in a low-pressure and low-oxygen exposure environment.

The invention belongs to the technical field of mining engineering safety, particularly relates to an experimental research method for coal rock impact dynamic disasters of a filling prevention and control working face, and aims to solve the problem that the sudden fracture process of overlying strata is difficult to reproduce in the traditional coal mine impact dynamic disaster research. A PCL material is heated, an asbestosed wire gauze is drawn out, a drop hammer falls in an iron pipe, a two-dimensional similar simulation experiment platform for instantaneous fracture of the overlying hard roof of the coal seam is constructed, gravitational potential energy is converted into impact kinetic energy through impact of falling of the drop hammer, and coal rock stress mutation is induced. The method comprises the following steps: simulating the instantaneous caving condition of a top plate in an overlying strata structural instability state, and capturing the whole process of dynamic interaction of a filling body-coal rock system under a coal rock impact dynamic disaster by combining a sensor and a monitoring system; meanwhile, a filling material is introduced to support the goaf, coal rock bearing pressure experimental data before and after goaf filling are compared, and the protection effect of the filling material on the coal rock under the condition of instantaneous collapse of the overlying roof is studied.

The invention relates to the technical field of pressure experiments, in particular to a pressure experiment device with a low-temperature wind tunnel for liquid hydrogen tank research and development, which comprises a laboratory, and is characterized in that the pressure experiment device comprises the low-temperature wind tunnel mounted in the laboratory; the supporting plate is arranged in the laboratory, four supporting strips are hinged to the top of the supporting plate, a top plate is hinged to the other ends of the four supporting strips, an adjusting plate is connected to the top of the top plate through a bearing, and a liquid hydrogen tank body is installed at the top of the adjusting plate; the pressure sensor is arranged in the middle of the liquid hydrogen tank body; and the swinging mechanism is arranged between the supporting plate and the top plate. The pressure experiment device with the low-temperature wind tunnel for research and development of the liquid hydrogen tank has the advantages that shaking and vibration effects of the liquid hydrogen tank in the transportation process can be simulated, testing effects of the liquid hydrogen tank in different temperature environments can be simulated, and authenticity and accuracy of pressure testing of the liquid hydrogen tank are improved.

The present application relates to rock mechanics, seepage mechanics and unconventional natural gas development technical field, specifically relates to a multi-scale pore and fracture connectivity characterization method of coal body under variable confining pressure based on nuclear magnetic resonance, comprising the following steps: confining pressure saturation and benchmark acquisition; constant pressure displacement and in-situ monitoring: keeping confining pressure constant, injecting nitrogen displacement under constant pressure difference, testing T2 spectrum in-situ at preset time node, obtaining residual water integral area, and determining displacement equilibrium until spectrum shape is stable; multi-stage confining pressure experiment; multi-scale connectivity calculation; compaction-damage stage determination, the present application divides nuclear magnetic resonance T2 spectrum into three scale intervals of micro-pore, medium-pore, large-pore and fracture, calculates the connectivity of each scale through relative connectivity, can distinguish the differential influence of confining pressure on pores and fractures of different scales, reveals the asynchronous evolution law of micro-pore network and fracture system, and provides fine data support for deep coal and rock seepage mechanism research.

The invention relates to the technical field of experimental devices for combustion performance of energetic materials, in particular to an automatic experimental device and method for high-pressure combustion of solid powder, and the automatic experimental device comprises a gas storage bottle for storing gas with required pressure, a visual tube furnace, a camera, a control unit and a quartz tube, one end of the quartz tube is provided with a variable-diameter nozzle pipe orifice, the variable-diameter nozzle pipe orifice is communicated with the output end of the gas storage bottle, a one-way valve is arranged between the variable-diameter nozzle pipe orifice and the gas storage bottle, the visual tubular furnace is used for heating the quartz tube, and the control unit is used for controlling the automatic sample feeding device to feed samples. The camera records the phenomenon in the quartz tube and transmits the record to the control unit for storage and analysis, so that automatic stable combustion and image acquisition of the solid powder under high pressure are realized, an ignition device is not needed, the solid powder can be tested at different temperatures and pressures, and the safety and stability of the test are ensured by multi-stage pressure relief.

The invention belongs to the technical field of shale reservoir development experiments, and discloses diffusion coefficient testing equipment and a diffusion coefficient testing method.The diffusion coefficient testing equipment comprises a sample holder, a gas injection system, an experimental oil injection system, a confining pressure adjusting device and an oil-gas separation metering system. The sample holder is provided with an air cavity, a sample cavity and an oil cavity which are communicated in sequence; the gas injection system is selectively communicated with the gas cavity, fills experimental gas into the gas cavity and adjusts the pressure of the gas cavity; the experimental oil injection system is selectively communicated with the oil cavity, injects experimental oil into the oil cavity and adjusts the pressure of the oil cavity; the confining pressure adjusting device is communicated with the sample cavity and can adjust the pressure in the sample cavity; and the oil-gas separation metering system is selectively communicated with the oil cavity, is used for containing experimental oil containing experimental gas after an experiment and can be used for carrying out oil-gas separation on the experimental oil. According to the diffusion coefficient testing equipment, the determination accuracy of the gas diffusion coefficient in the porous medium can be improved, and the influence of the diffusion effect in the shale reservoir on the improvement of the recovery efficiency can be accurately described.

The utility model discloses a valve experimental device, and relates to the technical field of experimental devices. The valve experimental device comprises an L-shaped mounting base, and a controller is arranged on the front face of the L-shaped mounting base; the positioning assembly is used for positioning the valve, and the positioning assembly comprises a lifting plate arranged on the surface of the L-shaped mounting base in a sliding mode and a lower positioning disc fixedly arranged on the inner bottom wall of the L-shaped mounting base; the sealing assembly is used for sealing the upper positioning disc and the water inlet end of the valve, and a concave sealing gasket is fixedly arranged on the inner wall of the sealing groove; and the experiment assembly is used for carrying out a pressure experiment on the valve. According to the utility model, through the arrangement of the positioning assembly and the experiment assembly, when the device carries out a pressure detection test on a valve, effective experiments can be carried out on valves with different specifications and heights, and through the arrangement of the sealing assembly, effective sealing of the joint of the upper positioning disc and the valve can be realized, and the accuracy of experiment data is ensured.

The invention provides a test device and method for efficiently stripping asphalt from old asphalt stone materials. The device comprises a high-pressure test bin, a cartridge bag, an anti-explosion sheet, a collecting bin, a mass block, an exploder, a liquid CO2 gas storage tank, a filling machine, a high-pressure gas pump, a piston and the like. The method mainly comprises the following steps: putting old asphalt and stone materials into a high-pressure experiment bin through a feeding hole, and sealing an upper sealing head; an anti-explosion piece with a cartridge bag is installed at the position of the lower end socket, the lower end socket is sealed, and the anti-explosion piece is pressed; the filling machine and the air storage tank are started, liquid CO2 is injected into the high-pressure experiment bin through the high-pressure air pump and the air injection hole, after permeation is saturated, the exploder is started, the cartridge bag and the anti-explosion piece are excited to be broken, old asphalt stone materials are sprayed out of the high-pressure experiment bin, and asphalt is stripped from the surfaces of stone. The method is reasonable in conception, is obtained through rapid unloading after high-pressure liquid CO2 saturated permeation, has the outstanding advantages of being good in crushing effect, simple in technological process, low in cost and the like, and can achieve efficient stripping of asphalt from the stone surface.

The invention relates to an impact tendency coal body fracturing grouting modification experiment method and device, and belongs to the technical field of deep mine rock burst prevention and control. The method comprises the following five steps: carrying out basic mechanical property measurement on a coal body sample; triaxial loading drilling pressure relief fracturing or cyclic fracturing is adopted, and acoustic emission monitoring is synchronously carried out; preparing a plurality of groups of grouting slurries with different proportions; pressurizing and grouting, and analyzing the distribution form through CT scanning; and drying and curing, and re-measuring the impact tendency index. The device comprises a grouting system, an air compressor, a liquid storage tank, a grouting pipeline, a pressure gauge and other components, a triaxial pressure experiment system, an acoustic emission monitoring system, a CT scanning device and the like. A complete experiment system is constructed, coal body fracturing grouting modification whole-process analysis is achieved, and experiment support is provided for rock burst prevention and control.

The invention provides a high-speed mechanical unloading device and method. The device comprises a bulk solid supporting block, a bulk solid supporting block tray, a bulk solid supporting block cover plate, a mass block, an oil cylinder, a hydraulic center, a high-pressure experiment bin, an oil cylinder piston and the like. The mass block is used for sealing ore and high-pressure water in the high-pressure experiment bin; the bulk supporting block penetrates through the wall of the high-pressure experiment bin and is supported at the middle lower part of the mass block, and the lower part of the bulk supporting block is supported in the bulk supporting block tray; the bulk supporting block cover plate and the bulk supporting block tray are installed; the oil cylinder is connected with the bulk supporting block tray; during unloading, hydraulic oil in the oil cylinder flows back to the hydraulic center, the piston of the oil cylinder descends to drive the bulk solid supporting block tray to move downwards, the bulk solid supporting block rotates outwards to be opened, and after the mass block loses support, the bulk solid supporting block is pushed by high-pressure water in the high-pressure experiment bin to be rapidly and downwards sprayed out, and unloading is completed. According to the invention, no consumables and explosion impact are realized, the integrity and coherence are good, and compared with the existing rapid unloading device, the rapid unloading device has stronger technical advantages and reliability.

The invention discloses a test device and test method for multiple pressure test loops, the test device comprises a conversion piece, the conversion piece is provided with two first interfaces, a plurality of second interfaces and a plurality of third interfaces, and the conversion piece is internally provided with channels which are communicated with one another among the first interfaces, the second interfaces and the third interfaces; the first interface is used for introducing test liquid, the second interface is used for communicating with the input ends of the pressure test loops, and the input ends of the plurality of pressure test loops are connected to the second interface, so that the plurality of pressure test loops can be tested at the same time through the intercommunication of the internal channels of the conversion piece under the condition of ensuring the pressure test effect and the pressure test safety; two driving parts are arranged to fill the pressure test loop with the test liquid, one driving part is used for filling the liquid, the other driving part is used for carrying out the pressure test, and the centrifugal pump is started, so that the filling period is shortened, the test efficiency is greatly improved, the field installation requirement is met under the condition that the construction safety is guaranteed, the construction efficiency is improved, the construction period is shortened, and the cost is reduced.

The invention discloses a slope pressure experiment device for a reservoir drainage abrupt slope, and relates to the field of reservoir model experiments, and the slope pressure experiment device comprises a corner of a reservoir model, a drainage port is formed in the corner of the reservoir model, a drainage abrupt slope model is fixed to the corner of the reservoir model, and a plurality of pressure measuring pipes are fixed to the bottom of the drainage abrupt slope model. A reinforcing and fixing mechanism is arranged between the pressure measuring pipe and the discharge abrupt slope model, and an auxiliary stabilizing mechanism is arranged between the pressure measuring pipe and the discharge abrupt slope model. Firstly, the pressure measuring pipe is fixed to the bottom of the drainage abrupt slope model, then the pressure measuring pipe and the drainage abrupt slope model are reinforced and fixed through the reinforcing and fixing mechanism, the pressure measuring pipe is further fixed through the auxiliary stabilizing mechanism, and one end of the pressure measuring pipe tightly abuts against the drainage abrupt slope model; therefore, the piezometric tube can be stably fixed on the discharge abrupt slope model, and the possibility that the discharge abrupt slope model vibrates due to overlarge water flow and the piezometric tube falls off is reduced.

The present application belongs to the technical field of oil production matching technology, and discloses a high-coagulation heavy oil reservoir cold damage evaluation method, which utilizes physical simulation and numerical simulation methods to analyze the reservoir cold damage degree, reversibility, the minimum temperature for avoiding cold damage and the reservoir temperature recovery time from quantitative and qualitative aspects, wherein the physical simulation firstly determines the crude oil properties through the crude oil viscosity-temperature and wax precipitation experiments, then utilizes the core to carry out breakthrough pressure experiments to determine the occurrence temperature of the reservoir cold damage, startup pressure experiments to determine the minimum temperature for avoiding damage, relative permeability experiments to determine the influence degree of the cold damage on the reservoir percolation capacity, mercury injection experiments to analyze the influence of the cold damage on the reservoir pore structure, and two-dimensional nuclear magnetic experiments and laser confocal experiments to determine whether the cold damage is reversible and the reversible temperature; the numerical simulation is utilized to analyze the recovery time required for different liquid amounts and different temperature working liquids to enter the formation, so as to finally achieve the purposes of reducing the development cost of the high-coagulation oil reservoir and improving the development effect.

The present invention discloses a method and device for determining thermodynamic parameters of the PVT phase characteristics of a reservoir fluid, wherein the method comprises: determining the critical temperature and critical pressure of the reservoir fluid plus component based on the specific gravity and normal pressure boiling point of the reservoir fluid plus component; determining the eccentricity factor of the reservoir fluid plus component based on the vapor pressure of the reservoir fluid plus component; determining the binary interaction coefficient between the reservoir fluid plus component and the hydrocarbon component based on the result parameters of the reservoir fluid saturation pressure experiment; determining the volume offset term of the reservoir fluid plus component based on the result parameters of the reservoir fluid density measurement; and determining the viscosity parameters of the reservoir fluid based on the result parameters of the reservoir fluid viscosity measurement. The present invention obtains experimental data through a simple experimental process, fits the experimental data step by step, and gradually determines the thermodynamic parameters of the PVT phase characteristics of the reservoir fluid. This method can more quickly obtain the thermodynamic parameters of the PVT phase characteristics of the reservoir fluid and ensure the accuracy of the obtained parameters.

The utility model discloses a variable frequency multistation high accuracy high and low temperature pressure test device belongs to pressure test field, including pressure test box, the front end of pressure test box is equipped with several observation windows, the inside of pressure test box is equipped with several circulating air flue, the inside equidistance of pressure test box is installed with several tool fixtures, the inside equidistance of pressure test box is installed with several circulating pipes, the surface of several circulating pipes all is equipped with the lead hole, the upper end of pressure test box is installed with two control panels, the front end of pressure test box is installed with several door locks, the utility model discloses the pressure test box not only can play high accuracy high and low temperature test operation to multiple test samples simultaneously, thereby significantly enhance the practicality and test efficiency of pressure experimental device, and still be convenient for playing the heat dissipation and protection effect to pressure experimental device through above -mentioned structure cooperation, and then can prolong the service life of pressure experimental device.

The invention relates to the technical field of compression resistance experiment devices, and discloses a high-density permanent magnet motor anti-extrusion experiment device which comprises an experiment table and a motor shell body, the upper surface of the experiment table is provided with an extrusion mechanism for carrying out a compression resistance experiment on a motor shell, and the experiment table is internally provided with a lifting mechanism which moves up and down during detection. An inner detection mechanism for detecting the interior of the motor shell during a compression resistance experiment is arranged in the motor shell body, a first rotating gear and a connecting plate are driven by an arranged hydraulic cylinder to move downwards, and meanwhile, the connecting plate drives an extrusion mechanism to move downwards through an arranged connecting rod; therefore, when the extrusion mechanism is moved to detect different positions of the motor shell body, the lifting mechanism is moved in the same direction to detect the interior of the motor shell body.

The utility model discloses a pressing and pulling-back integrated directional drilling pulling-back head device which comprises a pulling-back head body and a protective sleeve, a gas guide cavity is formed in the pulling-back head body, a connecting port is formed in one end of the pulling-back head body, a connecting part is formed at the other end of the pulling-back head body, the connecting port is used for wrapping and welding the end of a gas pipe, and the protective sleeve is used for protecting the end of the gas pipe. The gas guide chamber is communicated with a connector, and the connector is communicated with a gas pipe; according to the tool, the pulling-back head body is arranged, the gas guide cavity and the connecting port are utilized, the pipeline pressure testing procedure which must be completed before pulling-back is achieved, the pulling-back head body is utilized to be connected with the gas pipe, then the pressure testing pipe is arranged, pressure testing experiments can be conducted on the gas pipe under the condition that the pulling-back head body does not need to be disassembled, and after the experiments are completed, the pressure testing pipe can be used for testing the pressure of the gas pipe. The pull-back construction can be carried out without installing the pull-back head body again, the whole pressure testing and pull-back time is greatly shortened, the overall efficiency is improved, and the overall structure is simple and practical.

The invention relates to the technical field of concrete experiments, in particular to a concrete pressure testing machine. The invention provides a concrete pressure testing machine which can pour out disintegrating slag generated after testing to complete removal and improve the subsequent testing efficiency. A concrete pressure testing machine comprises a box body and box doors which are symmetrically and rotatably connected to the box body, and a frame body is fixedly connected to the outer bottom of the box body. Concrete is placed on an overturning block, a clamping block moves inwards to clamp and fix the overturning block, then a hydraulic cylinder is started to drive a stamping block to move downwards to make contact with the concrete, then a pressure experiment is conducted on the concrete, the concrete is pressed into disintegrating slag, after the concrete pressure experiment is completed, the stamping block is reset, a servo motor is started, and the hydraulic cylinder is started to drive the stamping block to move downwards to make contact with the concrete. The overturning block rotates by 180 degrees to drive the disintegrating slag to rotate by 180 degrees, and the disintegrating slag falls onto the material guide plate from the overturning block to be discharged, so that the disintegrating slag does not need to be manually removed, and the subsequent testing efficiency is improved.

The utility model discloses a pressure testing machine with a protection structure, and relates to the technical field of pressure testing machines, the pressure testing machine comprises a plate body, a pressure mechanism is fixedly installed at the top end of the plate body, a protection mechanism is arranged on one side of the pressure mechanism, the protection mechanism is installed at the top end of the plate body, and the protection mechanism comprises a fixing frame. According to the pressure testing machine, the protection mechanism is arranged, the front face of the pressure testing machine can be protected through the protection mechanism, so that workers are prevented from being hurt when a pressure experiment is carried out, and the using effect of the pressure testing machine is improved; the pressure test can be performed on the test object through the pressure mechanism, and the test object can be prevented from splashing from other directions through the shell, so that other personnel are prevented from being hurt during the test.

The utility model relates to a pressure test device with a detachable expansion joint. The pressure test device comprises a corrugated pipe expansion joint, a sealing mechanism and a water injection and detection mechanism, sealing mechanisms are arranged at the upper end and the lower end of the corrugated pipe expansion joint, a water injection and detection mechanism is arranged on the sealing mechanism located at the upper end of the corrugated pipe expansion joint, and the corrugated pipe expansion joint is detachably connected with the sealing mechanisms. The device meets the test pressure requirement, the structural member of the device has no obvious deformation during the pressure test, the device is sealed without leakage, and the expansion joint safely completes the pressure test inspection; the sealing structure adopts a structure of an upper sealing end cover and a lower sealing end cover and adopts a dual-sealing mechanism of a rectangular sealing ring and a Y-shaped sealing ring; the expansion joint generates pressure thrust when the pressure machine bears a pressure experiment; the operation is simple and convenient, and the device is detachable, welding-free and reusable; and compared with a conventional pressure test mode, the time cost and the personnel cost during the pressure test are reduced.

The utility model provides an air pressure experiment device, which comprises a device body, a buffer tube, a PLC control panel and a 24V direct current voltage module are arranged in the device body, two ends of the buffer tube are respectively provided with a to-be-experimented equipment interface tube and a compressed air interface tube, and the to-be-experimented equipment interface tube and the compressed air interface tube are integrally formed with the buffer tube. The pipe diameter of the to-be-tested equipment interface pipe and the pipe diameter of the compressed air interface pipe are smaller than the pipe diameter of the buffer pipe, the compressed air interface pipe is provided with a pressurization electromagnetic valve, the buffer pipe is connected with a pressure sensor and a pressure relief pipe, and the pressure relief pipe is connected with a pressure relief electromagnetic valve; a control display screen is installed on the surface of the device body, and the control display screen, the pressurization electromagnetic valve, the pressure relief electromagnetic valve and the pressure sensor are electrically connected with the PLC control panel. And the 24V direct-current voltage module is electrically connected with the PLC control panel. The device can be used for carrying out air pressure and air tightness experiments on air pressure experiment equipment, and has the advantages of simplicity in operation and accurate experiment data.

The invention discloses a surrounding rock grouting effect evaluation system and method based on radon gas monitoring, and relates to the field of surrounding rock grouting effect evaluation. The system comprises a radon gas monitoring system and a laboratory device, the radon gas monitoring system comprises a monitoring grouting anchor rod and a radon measuring assembly. A plurality of monitoring grouting anchor rods are arranged, each monitoring grouting anchor rod comprises a hollow rod body and three air exhaust rods embedded in the hollow rod body in parallel, grouting holes are formed in the pipe wall of the hollow rod body, the tail end of the hollow rod body can be opened and closed, the air outlet ends of the three air exhaust rods are fixedly installed at the tail end of the hollow rod body, and the air inlet ends of the three air exhaust rods are correspondingly located in the ranges of an elastic area, a plastic area and a broken area of surrounding rock. The radon measuring assembly comprises a radon measuring instrument; the laboratory device is a triaxial pressure experiment device. On-site actual measurement and experimental analysis are combined, multi-point radon gas precipitation concentration is synchronously monitored on site and compared with a critical characteristic threshold value, grouting effects at different depths in a rock stratum are inverted according to radon gas concentration distribution characteristics, operation is convenient and fast, system monitoring efficiency is high, and data reliability is high.

The application is suitable for the technical field of structural material mechanical property experiment, and provides a high-temperature internal pressure composite loading test device for a thin-walled shell structure, which comprises: an internal pressure loading assembly arranged on the inner side of a to-be-tested thin-walled shell structure and used for generating a normal loading force outward on the inner surface of the to-be-tested thin-walled shell structure; a high-temperature loading assembly arranged on the outer side of the to-be-tested thin-walled shell structure and used for heating the to-be-tested thin-walled shell structure; a support structure used for supporting; a sensor assembly comprising at least a first sensor used for collecting pressure experimental data of the internal pressure loading assembly and a second sensor used for collecting temperature experimental data of the high-temperature loading assembly; an analysis module used for processing each experimental data to obtain the material performance of the to-be-tested thin-walled shell structure; and a control module used for controlling the work of the test device, so that the high pressure and the high temperature are simultaneously loaded without interference, and the problems of complex and tedious experimental operation and high experimental cost are solved.

The utility model relates to the technical field of foundation detection, and discloses a foundation detection device which comprises a foundation base layer, two side buttresses are symmetrically arranged on the two sides of the top end of the foundation base layer, top limiting grooves are formed in the top ends of the side buttresses, two limiting blocks are symmetrically arranged in the top limiting grooves in a sliding mode, and the limiting blocks are arranged in the top limiting grooves in a sliding mode. A side buttress is arranged at the top of the foundation base layer, a ballasting platform and a balancing weight are arranged above the side buttress, a foundation compression detection assembly used for detection is arranged at the top end of the foundation base layer, and two groups of compression displacement detection assemblies are symmetrically arranged on the periphery of the top end of the foundation base layer. The foundation pressure detection assembly and the pressure displacement detection assembly are arranged at the bottom of the ballasting platform, the friction condition of the surface of the foundation base layer is preliminarily judged, and then accurate detection experiment data can be obtained through a real pressure experiment, so that convenience is provided for research and detection of a user.

The invention discloses an olivine product for capturing supercritical fluid and a preparation and application method of the olivine product. The preparation method of the olivine product comprises the following steps: cutting natural olivine which does not contain fluid and melt inclusions into olivine particles along a C axis, then soaking the olivine particles in 30-40wt% of hydrofluoric acid until cracks represented by the particles form a network shape, and then cleaning and drying the olivine particles to obtain the olivine product. The olivine product provided by the invention can effectively capture and store supercritical fluid in a high-temperature and high-pressure experiment, and samples for analysis, which are suitable for various analysis methods such as Raman spectroscopy, LA-ICPMS and the like, are obtained.

The utility model provides a middle-high pressure container equipment flange structure which comprises an upper flange and a lower flange, a first welding lip ring is arranged on the inner side of the lower end face of the upper flange, a second welding lip ring is arranged on the inner side of the upper end face of the lower flange, and an O-shaped ring groove is formed in the upper end face of the second welding lip ring. An O-shaped ring is arranged in the O-shaped ring groove located in the second welding lip ring, a plurality of annularly-distributed bolt holes are formed in the outer side of the lower end face of the upper flange and the outer side of the upper end face of the lower flange respectively, and fastening bolts are arranged between the bolt holes in the upper flange and the bolt holes in the lower flange. The O-shaped ring and the O-shaped ring groove are innovatively adopted to seal the gap between the two welding lips so as to carry out a pressure experiment, so that the waste of welding materials is avoided, the detection cost and the labor cost are saved, the production period is shortened, and the production efficiency is improved.