Graphene heat insulation material pressure test detection device

Abstract

The application relates to the technical field of detection devices, and discloses a graphene heat-insulating material pressure test detection device, which comprises a rack, a liquid detection station, a collection station, a temperature change detection station and a fatigue test station are sequentially arranged on the rack in a clockwise direction, a liftable detection frame and a movable carrier are installed on the rack, a directional driving system, a pressure control system driven by a first air pump and a rotatable rotating station frame are installed on the detection frame, a group of mounting components are installed on the rotating station frame, the mounting components comprise a vibration assembly, a vibration frame capable of reciprocating up and down and a rotatable hanging shaft are drivenly installed on the vibration assembly, the hanging shaft is rotationally installed on the vibration frame, a hanging frame is clamped and magnetically attracted to the bottom end of the hanging shaft, and a detection box is installed on the hanging frame. The graphene heat-insulating material can be subjected to detection of corrosion resistance, temperature change resistance, fatigue resistance, microscopic structure, surface performance and other aspects of performance on the same device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection devices, more particularly, the present application relates to a graphene heat insulation material pressure test detection device. BACKGROUND

[0002] In the prior art, the patent document with the publication number CN211453149U discloses an aluminum alloy heat insulation profile detection device, which comprises a tensile testing machine and a tension and pressure plate arranged on the tensile testing machine, characterized in that the top of the tensile testing machine is provided with a tension rod, and an upper clamp is fixedly arranged on the tension rod; the tension and pressure plate is provided with a lower clamp, and the above-mentioned device can complete the transverse tensile characteristic value detection of the aluminum alloy heat insulation profile, and the simultaneously arranged shear testing device and the sample fixing seat can be used to complete the longitudinal shear characteristic value detection, so that the all-around detection of the profile can be realized through one tensile testing machine, but the above-mentioned device has the following technical problems when in use:

[0003] 1. Single detection function: the existing equipment usually detects only a single performance such as pressure or temperature, lacks multifunctional integration, leads to complicated detection process and low efficiency, and needs to replace the equipment or adjust the work station many times, which significantly increases the time and cost;

[0004] 2. The existing detection device is difficult to realize dynamic pressure adjustment and high-pressure instantaneous impact simulation during the detection of the compression resistance of the heat insulation plate, which leads to large error of the compression resistance test data and cannot accurately reflect the actual working condition of the material;

[0005] 3. Insufficient composite stress simulation: the existing equipment cannot simultaneously realize the coordinated control of vibration, rotation and temperature / pressure change, cannot effectively simulate the composite stress environment that the material bears in actual application, and leads to large deviation between the test results and the actual working condition;

[0006] Therefore, the present application provides a graphene heat insulation material pressure test detection device to solve the technical problems in the background art. SUMMARY

[0007] In order to overcome the shortcomings of the prior art, the present application provides a graphene heat insulation material pressure test detection device, which can complete the detection of the corrosion resistance, temperature change resistance, fatigue resistance, microstructure and surface performance of the graphene heat insulation material on the same device.

[0008] In order to achieve the above object, the present application provides the following technical scheme: a graphene heat insulation material pressure test detection device, comprising a rack, a liquid detection station, a collection station, a temperature change detection station and a fatigue test station are sequentially arranged on the rack in a clockwise direction, a liftable detection frame and a movable carrier are installed on the rack, a directional driving system, a pressure control system driven by a first air pump and a rotatable rotating station frame are installed on the detection frame, a group of mounting components are installed on the rotating station frame;

[0009] The mounting component comprises a vibration assembly, a reciprocating vibration frame and a rotatable hanging shaft are drivenly installed on the vibration assembly, the hanging shaft is rotationally installed on the vibration frame, a hanging frame is connected and magnetically attracted to the bottom end of the hanging shaft, a detection box is installed on the hanging frame, the vibration frame vibrates up and down at the temperature change detection station, the fatigue test station and the liquid detection station, the hanging shaft is controllably self-rotated at the collection station and the liquid detection station, two samples to be detected are installed on the detection box, a pressure chamber controlled by the pressure control system is arranged inside the detection box and corresponds to the position between the two samples to be detected, a double-end temperature probe and a double-end strain sensor are installed in the middle of the pressure chamber;

[0010] A corrosion cylinder and a temperature change cylinder are respectively installed on the carrier, two symmetrical temperature control systems are installed on the temperature change cylinder, a second air pump is installed on the temperature change cylinder, a three-way pipe is communicated with the gas outlet port of the second air pump, the other two ports of the three-way pipe are communicated with the inner cavity of the temperature change cylinder, a cover is installed on the bottom surface of the vibration frame to seal the corrosion cylinder and the temperature change cylinder;

[0011] An electron microscope, a diffractometer and a visual collection probe are respectively installed on the temperature change cylinder.

[0012] As a preferred technical scheme of the present application, a vertical screw lifting module and a horizontal linear transmission module are respectively installed on the rack, the screw lifting module is in transmission connection with the detection frame, the linear transmission module is in transmission connection with the carrier, a central control unit is installed on the rack, two monitoring ends of the double-end temperature probe and the double-end strain sensor are respectively attached to the two samples to be detected, data ends of the electron microscope, the diffractometer, the visual collection probe, the double-end temperature probe and the double-end strain sensor are in data connection with the central control unit, the position of the corrosion cylinder corresponds to the position of the liquid detection station, and the position of the temperature change cylinder corresponds to the position of the temperature change detection station.

[0013] As a preferred technical scheme of the present application, the directional driving system comprises a rotating motor and a servo motor mounted on a rack, a rotating sleeve is rotatably mounted on the rack, an output shaft end of the rotating motor is in transmission connection with the rotating sleeve through a first belt, the rotating sleeve is fixedly connected with the rotating station frame, an inner wall of the rotating sleeve is rotatably mounted with a transmission shaft, an output shaft end of the servo motor is in transmission connection with the transmission shaft through a second belt, a transmission gear ring is mounted at the bottom of the transmission shaft, an inner frame is fixedly mounted on the rack, a first pinion shaft is rotatably mounted on the inner frame and corresponds to the positions of the collecting stations and the temperature change detection stations, a vibration pinion shaft is rotatably mounted on the inner frame and corresponds to the positions of the fatigue test stations and the liquid detection stations, an inner wall of the vibration pinion shaft in the liquid detection station is rotatably mounted with a second pinion shaft, the top end of the second pinion shaft and the two first pinion shafts are all mounted with rotating bevel gears, vibration bevel gears and driven gears are mounted on the two vibration pinion shafts, the two driven gears are in meshing connection with the transmission gear ring, a transmission motor is mounted on the bottom surface of the inner frame, an output shaft end of the transmission motor is in transmission connection with a synchronous belt, and the two first pinion shafts and the second pinion shaft are in transmission connection with the synchronous belt.

[0014] As a preferred technical scheme of the present application, the vibration linkage assembly comprises a rotating guide shaft rotatably connected to the rotating station frame, an eccentric shaft and a hollow shaft, a first driven bevel gear adaptedly connected with the rotating bevel gear is fixedly mounted at the tail end of the rotating guide shaft, a second driven bevel gear adaptedly connected with the vibration bevel gear is fixedly mounted at the tail end of the eccentric shaft, linkage bevel gears are mounted on the hollow shaft and the rotating guide shaft, the two linkage bevel gears are in meshing connection with each other, an eccentric wheel is mounted on the eccentric shaft, a follower wheel adaptedly connected with the eccentric wheel is rotatably mounted on the vibration frame, a reset spring limited by the rotating station frame is mounted on the top surface of the vibration frame, a synchronous groove with two open ends is fixedly arranged in the interior of the hollow shaft, a synchronous segment in sliding connection with the synchronous groove is fixedly arranged on the hanging shaft, and the cross sections of the synchronous segment and the synchronous groove are regular hexagons.

[0015] As a preferred technical scheme of the present application, the pressure control system comprises a pressure dividing rotary ring and a pressure guide cylinder rotatably connected in the pressure dividing rotary ring, the first air pump is fixedly mounted on the rack, a pressure storage tank is mounted on the rack, the gas outlet end of the first air pump is in fixed communication with the pressure storage tank, the gas outlet port of the pressure storage tank is in communication with the inner cavity of the pressure guide cylinder through a pressure delivery pipe, a pressure guide flow channel with an open top end is arranged in the interior of each hanging shaft, a connecting pipe is fixedly communicated with each pressure guide flow channel on the pressure dividing rotary ring, the tail end of each connecting pipe is in communication with the inner cavity of the pressure guide cylinder through the pressure dividing rotary ring, and the other end of each connecting pipe is in rotational communication with the corresponding position of the pressure guide flow channel.

[0016] As a preferred technical scheme of the present application, the temperature control system comprises a temperature controller installed on the temperature change cylinder, a temperature sensor installed on the temperature change cylinder and monitoring the temperature in the cavity of the temperature change cylinder, and a pressure relief valve in communication with the cavity of the temperature change cylinder, the temperature control end of the temperature controller is in communication with the cavity of the temperature change cylinder, a heating element and a liquid nitrogen refrigeration system are respectively installed in the temperature controller, the heating element is a silicon molybdenum rod, and the temperature control range of the temperature controller is -150 DEG C to 800 DEG C.

[0017] As a preferred technical scheme of the present application, an electromagnetic valve and a gas pressure probe are installed on each of the delivery pipe, the communicating pipe and the three-way pipe.

[0018] As a preferred technical scheme of the present application, a sealing disc is fixedly installed on the detection box and corresponds to the positions on both sides of the sample to be detected, a sealing rubber ring is installed on the sealing disc, the outer diameter of the sealing disc is adapted to the inner diameter of the temperature change cylinder, the inner diameter of the corrosion cylinder is 1.1 to 1.2 times the radius of the sealing disc, an acidic chemical solution is stored in the corrosion cylinder, a heating jacket is arranged on the corrosion cylinder, and the heating temperature of the heating jacket is 65 DEG C to 85 DEG C.

[0019] As a preferred technical scheme of the present application, a hanging frame is installed at the bottom end of the hanging shaft, two symmetrical hanging grooves are formed in the hanging frame and are in sliding connection with the hanging bracket, a permanent magnet is arranged in the hanging bracket, the permanent magnet is magnetically adsorbed to the hanging frame, and a handle is installed on the hanging bracket.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The prior art has single detection function, and needs to replace equipment or adjust workstations multiple times, resulting in complicated detection process, low efficiency and increased cost. The present application sets liquid detection workstations, collection workstations, temperature change detection workstations and fatigue test workstations on the rack, cooperates with the liftable detection frame, the movable carrier and the mounting components on the rotating workstation frame, and can complete the detection of the corrosion resistance, temperature change resistance, fatigue resistance, microstructure and surface performance of the graphene heat insulation material on the same device. For example, the detection box can be immersed in an acidic chemical solution for detection, temperature change detection and microstructure analysis at different workstations, without the need for multiple times of transferring workpieces and replacing equipment, greatly shortening the detection time, reducing the cost and significantly improving the detection efficiency.

[0022] Traditional testing devices struggle to achieve dynamic pressure regulation and simulate high-pressure instantaneous impact during the testing of the compressive strength of insulation panels, resulting in significant errors in the compressive strength test data. The pressure control system of this invention, through the coordinated operation of components such as a first air pump, a pressure tank, a pressure-distributing ring, and a pressure-guiding cylinder, not only maintains the set air pressure in the ballast chamber at the liquid testing station, temperature change testing station, and fatigue testing station to test the physical strength and pressure resistance of the workpiece, but also allows for instantaneous high-pressure filling of the ballast chamber via the pressure tank, simulating high-pressure instantaneous impact to test the instantaneous impact resistance of the workpiece. Simultaneously, at the temperature change testing station, independent control of the first and second air pumps allows for different internal and external pressures on the test sample, enabling separate testing of compressive strength from both sides. This accurately simulates actual working conditions, significantly improving the accuracy of the compressive strength test data and more realistically reflecting the material's compressive strength in practical applications.

[0023] 3. Existing equipment struggles to simultaneously achieve coordinated control of vibration, rotation, and temperature / pressure changes, failing to effectively simulate the complex stress environment that materials experience in practical applications. This results in significant deviations between test results and actual working conditions. The directional guiding system and vibration linkage components of this invention work together. At the liquid testing station, the hanging shaft rotates, the vibrating frame vibrates, and the workpiece is simultaneously immersed in an acidic chemical solution at a specific temperature and subjected to a set pressure. At the temperature change testing station, the vibrating frame vibrates, the testing chamber rotates, and the temperature inside the temperature change cylinder varies within the range of -150℃ to 800℃. The internal and external pressures of the workpiece can also differ. At the fatigue testing station, the testing chamber drives the workpiece to vibrate continuously and withstand pressure. Through these coordinated changes of multiple parameters, the complex stress environment that materials may experience in practical applications is effectively simulated, making the test results closer to actual working conditions and greatly enhancing the reliability of the test results. This provides a stronger basis for the research and development and quality control of graphene thermal insulation materials. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a pressure testing device for graphene thermal insulation materials according to the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of the test sample and the corrosion cylinder of the present invention;

[0026] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the local structure at point A;

[0027] Figure 4 This is a schematic diagram of the structure of the inspection rack and rotating workstation rack of the present invention;

[0028] Figure 5 For the present invention Figure 4 A schematic diagram of the cross-sectional structure;

[0029] Figure 6 For the present invention Figure 5A local enlarged structure schematic view at B;

[0030] Figure 7 For the application Figure 5 A local enlarged structure schematic view at C;

[0031] Figure 8 For the application Figure 5 A local enlarged structure schematic view at D;

[0032] Figure 9 A structure schematic view of the carrier and the second air pump of the application;

[0033] Figure 10 A structure schematic view of the box and the valve channel of the application;

[0034] Figure 11 A structure schematic view of the rotating guide shaft and the first gear shaft of the application;

[0035] Figure 12 A structure schematic view of the driven gear and the first gear shaft of the application.

[0036] In the figure: 1, frame; 2, inspection frame; 3, carrier; 4, first air pump; 5, rotating station frame; 6, vibration frame; 7, hanging shaft; 8, hanging frame; 9, inspection box; 10, sample to be inspected; 11, ballast chamber; 12, double-end temperature probe; 13, double-end strain sensor; 14, corrosion cylinder; 15, temperature change cylinder; 16, second air pump; 17, three-way pipe; 18, cover; 19, electron microscope; 20, diffractometer; 21, visual acquisition probe; 22, screw lifting module; 23, linear transmission module; 24, central control unit; 25, indexing motor; 26, servo motor; 27, indexing sleeve; 28, inner frame; 29, first gear shaft; 30, vibration gear shaft; 31, second gear shaft; 32, driven gear; 33, transmission motor; 34, rotating guide shaft; 35, eccentric shaft; 36, hollow shaft; 37, eccentric wheel; 38, follower; 39, return spring; 40, pressure dividing ring; 41, pressure guiding cylinder; 42, pressure storage tank; 43, pressure guiding flow channel; 44, pipe connection; 45, valve channel; 46, temperature control system; 47, temperature sensor; 48, pressure relief valve; 49, sealing disc; 50, hanging frame; 51, transmission gear ring; 52, transmission shaft. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0038] AsFigures 1 to 12 As shown, the present application provides a graphene thermal insulation material pressure test detection device, comprising a rack 1, the rack 1 is sequentially provided with a liquid detection station, a collection station, a temperature change detection station and a fatigue test station in the clockwise direction, the rack 1 is installed with a liftable detection frame 2 and a movable carrier 3;

[0039] The rack 1 is respectively installed with a vertically arranged screw lifting module 22 and a horizontally arranged linear transmission module 23, the screw lifting module 22 is in transmission connection with the detection frame 2, and the linear transmission module 23 is in transmission connection with the carrier 3;

[0040] The detection frame 2 is installed with a directional driving system, a pressure control system driven by a first air pump 4 and a rotatable rotating station frame 5, and a group of mounting components are installed on the rotating station frame 5;

[0041] The mounting component comprises a vibration assembly, a reciprocating vibration frame 6 and a rotatable hanging shaft 7 are in transmission installation on the vibration assembly, the hanging shaft 7 is rotationally installed on the vibration frame 6, the bottom end of the hanging shaft 7 is clamped and magnetically attracted to a hanging frame 8, the hanging frame 8 is installed with a detection box 9, the vibration frame 6 vibrates up and down on the temperature change detection station, the fatigue test station and the liquid detection station, and the hanging shaft 7 is controllably self-rotated on the collection station and the liquid detection station;

[0042] By setting the screw lifting module 22 and the linear transmission module 23 on the rack 1, which are in transmission connection with the detection frame 2 and the carrier 3 respectively, the positions of the detection frame 2 and the carrier 3 can be flexibly adjusted, in the working process, after starting the equipment, the screw lifting module 22 can accurately control the lifting height of the detection frame 2, and the linear transmission module 23 can accurately adjust the horizontal position of the carrier 3, so as to ensure that the detection components on the detection frame 2 and the workpieces on the carrier 3 are accurately aligned, which solves the problem that the detection components and the workpieces are difficult to accurately cooperate in the traditional detection device, compared with the prior art, the accuracy and stability of detection are greatly improved;

[0043] The directional driving system comprises a rotating motor 25 and a servo motor 26 installed on a rack 1, a rotating sleeve 27 is rotatably installed on the rack 1, the output shaft end of the rotating motor 25 is connected with the rotating sleeve 27 through a first belt, the rotating sleeve 27 is fixedly connected with the rotating station frame 5, a transmission shaft 52 is rotatably installed on the inner wall of the rotating sleeve 27, the output shaft end of the servo motor 26 is connected with the transmission shaft 52 through a second belt, a transmission gear ring 51 is installed at the bottom of the transmission shaft 52, an inner frame 28 is fixedly installed on the detection frame 2, a first pinion shaft 29 is rotatably installed on the inner frame 28 at positions corresponding to the sampling station and the temperature change detection station, a vibration pinion shaft 30 is rotatably installed on the inner frame 28 at positions corresponding to the fatigue test station and the liquid detection station, a second pinion shaft 31 is rotatably installed on the inner wall of the vibration pinion shaft 30 in the liquid detection station, the top end of the second pinion shaft 31 and the two first pinion shafts 29 are all provided with rotating bevel gears, the two vibration pinion shafts 30 are all provided with vibration bevel gears and driven gears 32, the two driven gears 32 are all meshingly connected with the transmission gear ring 51, a transmission motor 33 is installed on the bottom surface of the inner frame 28, the output shaft end of the transmission motor 33 is connected with a synchronous belt, the two first pinion shafts 29 and the second pinion shaft 31 are all connected with the synchronous belt.

[0044] The rotating motor 25 and the servo motor 26 drive the rotating sleeve 27 and the transmission shaft 52 to rotate, and then drive the transmission gear ring 51, so that the driven gears 32 drive the vibration pinion shaft 30 and the first pinion shaft 29 to rotate, thereby realizing the orderly rotation of the rotating station frame 5; during work, according to the detection process, the rotating station frame 5 can quickly and accurately switch the position of the mounted component at different stations, for example, when switching from the liquid detection station to the sampling station, the directional driving system can ensure that the mounted component rotates smoothly and accurately to the corresponding position.

[0045] The vibration linkage assembly comprises a rotating guide shaft 34, an eccentric shaft 35 and a hollow shaft 36 rotatably connected to the rotating station frame 5, the tail end of the rotating guide shaft 34 is fixedly provided with a first driven bevel gear which is adaptively connected with the rotating bevel gear, the tail end of the eccentric shaft 35 is fixedly provided with a second driven bevel gear which is adaptively connected with the vibration bevel gear, the hollow shaft 36 and the rotating guide shaft 34 are both provided with linkage bevel gears, the two linkage bevel gears are meshed with each other, the eccentric shaft 35 is provided with an eccentric wheel 37, the vibration frame 6 is rotatably provided with a follower 38 which is adaptively connected with the eccentric wheel 37, the top surface of the vibration frame 6 is provided with a return spring 39 which is limited by the rotating station frame 5, the inside of the hollow shaft 36 is fixedly provided with a synchronous groove with two open ends, the hanging shaft 7 is fixedly provided with a synchronous segment which is slidably connected with the synchronous groove, the cross sections of the synchronous segment and the synchronous groove are both regular hexagons.

[0046] The eccentric shaft 35 drives the eccentric wheel 37 to rotate, so that the follower wheel 38 drives the vibration frame 6 to vibrate up and down. Meanwhile, the hollow shaft 36 and the rotating guide shaft 34 realize cooperative movement through the linkage bevel gear, the hanging shaft 7 is controllable self-rotation at a specific work station, the detection frame 2 is lowered by a specified depth at the liquid detection work station, and the sample 10 to be detected is immersed in the chemical liquid in the corrosion cylinder 14. After the detection frame 2 is immersed in the corrosion cylinder 14, the sample 10 to be detected rotates at a set speed and vibrates at a set frequency at the liquid detection work station. Through the rotation and vibration of the sample 10 to be detected at the liquid detection work station, the contact efficiency and collision efficiency of the sample 10 to be detected and the chemical liquid in the corrosion cylinder 14 are effectively improved, and the corrosion efficiency of the chemical liquid on the sample 10 to be detected in the corrosion cylinder 14 is improved, thereby quickly measuring the corrosion resistance of the sample 10 to be detected;

[0047] The chemical solution is a hydrochloric acid solution with a concentration of 10%;

[0048] At the temperature change detection work station, the up and down vibration of the vibration frame 6 can simulate the vibration environment that the graphene heat insulation material may be subjected to in actual use;

[0049] At the temperature change detection work station, the sample detection box 9 enters the inside of the temperature change cylinder 15 and divides the inside of the temperature change cylinder 15 into two isolated chambers;

[0050] The two isolated chambers are respectively communicated with two temperature control systems 46. In the initial detection stage, the detection box 9 vibrates at a set frequency, the detection box 9 does not rotate, one temperature control system 46 cools and the other temperature control system 46 heats, thereby forming a temperature difference. After the temperature difference is formed, the temperature sensors 47 in the two temperature control systems 46 respectively detect the outside temperatures of the two samples 10 to be detected on the detection box 9, and the double-end temperature probe 12 respectively detects the inside temperatures of the two samples 10 to be detected on the detection box 9, thereby obtaining two groups of data in a single detection process and detecting the heat insulation performance of the samples 10 to be detected;

[0051] After the initial detection stage, the vibration frame 6 keeps vibrating up and down, one temperature control system 46 cools and the other temperature control system 46 heats, and the detection box 9 periodically rotates, so that the heat insulation plates alternately receive low-temperature and high-temperature environments, thereby detecting the temperature change resistance and fatigue resistance of the samples 10 to be detected and the structural stability of the samples 10 to be detected under extreme temperature changes;

[0052] At the collection work station, by setting the output state of the transmission motor 33, the two samples 10 to be detected on the detection box 9 periodically and alternately face the electron microscope 19, the diffractometer 20 and the visual collection probe 21, thereby detecting the material performance change, surface performance and color change of the samples 10 to be detected after the experiment;

[0053] At the fatigue test work station, the detection box 9 drives the samples 10 to be detected to continuously vibrate at a set frequency, thereby performing vibration fatigue test on the samples 10 to be detected;

[0054] Two samples 10 to be detected are installed on the detection box 9, and a ballast chamber 11 controlled by a pressure control system is arranged in the detection box 9 and corresponds to the position between the two samples 10 to be detected, and a double-end temperature probe 12 and a double-end strain sensor 13 are arranged in the middle of the ballast chamber 11;

[0055] The two monitoring ends of the double-end temperature probe 12 and the double-end strain sensor 13 are respectively attached to the two samples 10 to be detected;

[0056] During the detection process, the ballast chamber 11 is pressurized by the pressure control system, and the double-end temperature probe 12 and the double-end strain sensor 13 monitor the temperature and strain of the workpiece in real time. When the graphene heat insulation material is subjected to pressure test detection, the pressure control system accurately transmits the pressure to the ballast chamber 11, and the two monitoring ends are tightly attached to the samples 10 to be detected, and the data is continuously collected. This solves the problem that it is difficult to obtain the temperature and strain change data of the material under pressure in real time and accurately in the traditional detection. Compared with the prior art, the performance change of the graphene heat insulation material under the action of pressure can be more comprehensively and accurately mastered, which provides key data for studying the stability and reliability of the material, and helps to improve the quality and performance of the graphene heat insulation material;

[0057] The corrosion cylinder 14 and the temperature change cylinder 15 are respectively installed on the carrier 3, and the position of the corrosion cylinder 14 corresponds to the position of the liquid detection station, and the position of the temperature change cylinder 15 corresponds to the position of the temperature change detection station;

[0058] The temperature change cylinder 15 is provided with two symmetrical temperature control systems 46, and the second air pump 16 is installed on the temperature change cylinder 15, and the outlet port of the second air pump 16 is communicated with the three-way pipe 17, and the other two ports of the three-way pipe 17 are communicated with the inner cavity of the temperature change cylinder 15, and the bottom surface of the vibration frame 6 is provided with a cover 18 for sealing the corrosion cylinder 14 and the temperature change cylinder 15;

[0059] The temperature change cylinder 15 is provided with an electron microscope 19, a diffractometer 20 and a visual acquisition probe 21.

[0060] The carrier 1 is provided with a central control unit 24, and the data terminals of the electron microscope 19, the diffractometer 20 and the visual acquisition probe 21, the double-end temperature probe 12 and the double-end strain sensor 13 are connected with the central control unit 24.

[0061] At the collection station, the output state of the transmission motor 33 is set to periodically and alternately direct the two samples 10 on the inspection box 9 towards the electron microscope 19. The electron microscope 19 can perform high-resolution imaging of the microstructure of the graphene thermal insulation material, observe the microstructure, crystal structure defects, and particle distribution of the material, and detect changes in the material properties after the experiment, such as micro-damage and changes in the organizational structure. These microscopic information is crucial for understanding the performance change mechanism of graphene thermal insulation materials and helps researchers evaluate the stability and reliability of the material under different experimental conditions.

[0062] The diffractometer 20 uses diffraction techniques such as X-ray or electron beam to analyze the crystal structure and phase composition of the material. By measuring the diffraction pattern, the crystal structure type, lattice parameters, and crystallinity of the graphene thermal insulation material can be determined. This data is important for evaluating the physical and chemical property changes of the material and determining the quality and performance stability of the material.

[0063] At the collection station, the visual collection probe 21 observes the sample 10 and can obtain surface image information, detect surface performance and color changes, and visually observe the flatness, roughness, scratches, cracks, and surface color changes of the workpiece.

[0064] Surface performance and color changes may reflect physical and chemical changes in the material during the experiment, such as corrosion and oxidation, providing a visual basis for evaluating the appearance quality and performance of the material.

[0065] The reasonable layout of the corrosion cylinder 14 and the temperature change cylinder 15 on the stage 3, combined with the sealing cover 18 on the bottom surface of the vibration frame 6, makes the detection process more compact and efficient. At the liquid detection station, the acidic chemical solution in the corrosion cylinder 14 can perform corrosion resistance detection on the workpiece. At the temperature change detection station, the temperature control system 46 on the temperature change cylinder 15 can adjust the temperature. When the rotating station frame 5 drives the mounted components to the corresponding stations in turn, the sealing cover 18 seals the corrosion cylinder 14 and the temperature change cylinder 15, respectively, to achieve different detection functions. This solves the problem of single function and inability to perform multiple detections simultaneously in traditional detection equipment. Compared with the prior art, this device integrates multiple detection functions, reduces the floor space occupied by the equipment, improves detection efficiency, reduces detection cost, and provides convenience for comprehensive detection of graphene thermal insulation materials.

[0066] The central control unit 24 is in data connection with the electron microscope 19, the diffractometer 20, the visual acquisition probe 21, the double-end temperature probe 12 and the double-end strain sensor 13, can collect and analyze various detection data in real time, in work, the data acquired by each detection component is transmitted to the central control unit 24 in real time, the central control unit 24 carries out centralized processing and analysis, and generates a detailed detection report, which solves the problem of scattered data in traditional detection and difficult to unified processing and analysis, compared with the prior art, realizes the intelligent management of detection data, greatly improves the efficiency and accuracy of data processing, and facilitates researchers to quickly obtain material performance information, and provides strong support for the research and development and quality control of graphene thermal insulation materials;

[0067] The pressure control system comprises a pressure dividing rotary ring 40 and a pressure guiding cylinder 41 rotatably connected in the pressure dividing rotary ring 40, the first gas pump 4 is fixedly installed on the detection rack 2, a pressure storage tank 42 is installed on the detection rack 2, the gas outlet end of the first gas pump 4 is fixedly communicated with the pressure storage tank 42, the gas outlet port of the pressure storage tank 42 is communicated with the inner cavity of the pressure guiding cylinder 41 through a pressure sending pipe, the inside of each hanging shaft 7 is provided with a pressure guiding flow channel 43 with an open top, each pressure guiding flow channel 43 is fixedly communicated with a pipe connector 44 on the pressure dividing rotary ring 40, the tail end of each pipe connector 44 is communicated with the inner cavity of the pressure guiding cylinder 41 through the pressure dividing rotary ring 40, and the other end of each pipe connector 44 is rotatably communicated with the corresponding pressure guiding flow channel 43, and the valve channel 45 fixedly provided on the detection box 9 is communicated with the ballast chamber 11, and the valve channel 45 is adaptively communicated with the pressure guiding flow channel 43.

[0068] The first gas pump 4, the pressure storage tank 42, the pressure dividing rotary ring 40 and the pressure guiding cylinder 41 work cooperatively to accurately control the pressure of the ballast chamber 11, in the working process, the first gas pump 4 fills gas into the pressure storage tank 42, and then the gas enters the pressure guiding cylinder 41 through the pressure sending pipe, and the pressure is accurately transmitted to the ballast chamber 11 through the pressure dividing rotary ring 40 and the pipe connector 44, which solves the problem of inaccurate pressure control in traditional detection;

[0069] At the liquid detection station, the temperature change detection station and the fatigue test station, the inside of the ballast chamber 11 can be maintained at a set air pressure through the first gas pump 4, and the air pressure is loaded to perform compression test on the to-be-detected sample 10 on the detection box 9, and then the physical strength and the pressure resistance and compression resistance of the to-be-detected sample 10 in the physical layer are detected;

[0070] At the temperature change detection station, the inside and outside pressures of the to-be-detected sample 10 can be made different through independent control of the first gas pump 4 and the second gas pump 16, and then the physical strength and the pressure resistance and compression resistance of the to-be-detected sample 10 in the physical layer are detected from the inside and the outside of the heat insulation plate;

[0071] Through the setting of the pressure storage tank 42, the ballast chamber 11 can also be instantaneously filled with high pressure, so as to detect the instantaneous impact resistance of the to-be-detected sample 10;

[0072] The temperature control system 46 comprises a temperature controller installed on the temperature change cylinder 15, a temperature sensor 47 installed on the temperature change cylinder 15 and monitoring the temperature of the inner cavity of the temperature change cylinder 15, and a pressure relief valve 48 in communication with the inner cavity of the temperature change cylinder 15. The temperature control end of the temperature controller is in communication with the inner cavity of the temperature change cylinder 15. A heating element and a liquid nitrogen refrigeration system are respectively installed in the temperature controller. The heating element is a silicon molybdenum rod. The temperature control range of the temperature controller is -150℃ to 800℃.

[0073] The temperature controller, the temperature sensor 47 and the pressure relief valve 48 work together to accurately adjust the temperature of the inner cavity of the temperature change cylinder 15 in the range of -150℃ to 800℃. During operation, the heating element and the liquid nitrogen refrigeration system in the temperature controller are started according to the detection requirements. The temperature sensor 47 monitors the temperature in real time. The pressure relief valve 48 ensures the safety of the system. This solves the problems of narrow temperature control range and low precision of traditional detection equipment. Compared with the prior art, a wider range of actual use temperature environments can be simulated, and the performance of the graphene thermal insulation material at different temperatures can be comprehensively detected, providing more abundant data for evaluating the applicability of the material.

[0074] An electromagnetic valve and a gas pressure probe are installed on the delivery pipe, each of the connecting pipes 44, and the two communication positions of the three-way pipe 17 and the temperature change cylinder 15.

[0075] The installation of the electromagnetic valve and the gas pressure probe at the connection positions of the delivery pipe, the connecting pipes 44 and the three-way pipe 17 can monitor and accurately control the gas pressure in real time. During operation, the electromagnetic valve can quickly adjust the gas flow according to the detection requirements. The gas pressure probe feeds back the pressure data in real time, ensuring the stability of the gas pressure in each detection link. This solves the problem of unstable gas pressure control and the inability to monitor in real time in traditional detection. Compared with the prior art, the precision and safety of gas pressure control during detection are improved, ensuring the accuracy and reliability of the detection results, and making the pressure test and detection of graphene thermal insulation materials more scientific and rigorous.

[0076] A sealing disc 49 is fixedly installed on the detection box 9 and corresponds to the positions on both sides of the to-be-detected sample 10. A sealing rubber ring is installed on the sealing disc 49. The outer diameter of the sealing disc 49 is adapted to the inner diameter of the temperature change cylinder 15. The inner diameter of the corrosion cylinder 14 is 1.1 to 1.2 times the radius of the sealing disc 49. An acidic chemical solution is stored in the corrosion cylinder 14. A heating jacket is provided on the corrosion cylinder 14. The heating temperature of the heating jacket is 65℃ to 85℃.

[0077] The sealing disc 49 and the sealing rubber ring ensure the sealing property of the detection process. The special design of the corrosion cylinder 14 and the setting of the heating jacket can perform corrosion resistance detection of the workpiece under specific conditions. During operation, when the mounted part reaches the liquid detection position, the heating jacket heats the solution to 65℃ to 85℃, and the corrosion detection of the workpiece is performed.

[0078] At the temperature change detection station, the sealing disc 49 is attached to the temperature change cylinder 15 through a sealing ring, so that a sealed independent chamber is formed between the detection box 9 and the temperature change cylinder 15, and then temperature change detection is performed and the temperature stability during temperature change detection is improved;

[0079] The bottom end of the hanging shaft 7 is provided with a hanging frame 50, the hanging frame 50 is provided with two symmetrical hanging grooves which are in sliding connection with the hanging bracket 8, the hanging bracket 8 is provided with a permanent magnet, the permanent magnet is magnetically attached to the hanging frame 50, and the hanging bracket 8 is provided with a handle.

[0080] The hanging frame 50 at the bottom end of the hanging shaft 7 is in magnetic attraction and hanging groove cooperation with the hanging bracket 8, so that the detection box 9 can be conveniently and quickly installed and dismounted, the handle on the hanging bracket 8 is also convenient to operate, when the to-be-detected sample 10 is installed and replaced, the operator can easily pick up the hanging bracket 8 through the handle, and the hanging bracket 8 is connected or separated from the hanging shaft 7, which solves the problem that the workpiece is inconvenient to install and dismount in the traditional detection equipment, greatly improves the convenience of detection operation compared with the prior art, reduces the detection preparation time, improves the work efficiency, and makes the operation of the graphene heat insulation material pressure test detection more humanized.

[0081] The working principle and use process of the graphene heat insulation material pressure test detection device: when the graphene heat insulation material pressure test detection device works, first, the position of the detection frame 2 and the carrier 3 is adjusted through the screw rod lifting module 22 and the linear transmission module 23 on the rack 1 to ensure the accurate alignment of the detection components and the workpiece, after starting the equipment, the rotating work station frame 5 rotates under the driving of the directional driving system, driving the hanging component to switch the work station, in the liquid detection work station, the detection frame 2 is lowered to immerse the sample to be detected 10 in the acidic chemical solution in the corrosion cylinder 14, the hanging shaft 7 rotates and the vibration frame 6 vibrates to improve the contact and corrosion efficiency of the workpiece and the solution, and the corrosion resistance is detected, at the same time, the pressure control system maintains the set air pressure in the ballast chamber 11 to detect the pressure resistance of the workpiece, in the temperature change detection work station, the vibration frame 6 vibrates to simulate the actual vibration environment, the detection box 9 enters the temperature change cylinder 15 to form two isolated chambers, the temperature control system 46 adjusts the temperature to form a temperature difference, and the heat insulation performance of the workpiece is detected, then the detection box 9 periodically rotates to detect the temperature change resistance, fatigue resistance and structural stability, and the first and second air pumps are controlled to make the pressure inside and outside the workpiece different, and the pressure resistance is further detected, in the collection work station, the sample to be detected 10 on the detection box 9 periodically alternates to the electron microscope 19, the diffractometer 20 and the visual collection probe 21, and the material performance change, surface performance and color change are detected, in the fatigue test work station, the detection box 9 drives the sample to be detected 10 to continuously vibrate to perform vibration fatigue resistance test, during the detection process, the double-end temperature probe 12 and the double-end strain sensor 13 monitor the temperature and strain of the workpiece in real time, and the data of each detection component is transmitted to the central control unit 24 for centralized processing and analysis, in addition, the temperature control system 46 can accurately adjust the temperature of the temperature change cylinder 15, the electromagnetic air valve and the air pressure probe control the gas pressure, the sealing disc 49 and the sealing rubber ring ensure the detection sealing performance, the design of the hanging shaft 7 and the hanging frame 8 facilitates the loading and unloading of the detection box 9, and the whole device realizes efficient and accurate detection of the multiple performances of the graphene heat insulation material.

[0082] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0083] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pressure testing device for graphene thermal insulation materials, comprising a frame (1), characterized in that: The machine frame (1) is arranged in a clockwise direction with a liquid detection station, a data acquisition station, a temperature change detection station and a fatigue testing station. The machine frame (1) is equipped with a liftable inspection frame (2) and a movable platform (3). The inspection frame (2) is equipped with a directional guiding system, a pressure control system driven by a first air pump (4) and a rotatable rotating workstation frame (5). A set of mounting components is installed on the rotating workstation frame (5). The mounting components include a vibration assembly, on which a vibrating frame (6) that can move up and down and a rotatable hanging shaft (7) are driven and mounted. The hanging shaft (7) is rotatably mounted on the vibrating frame (6). The bottom end of the hanging shaft (7) is snapped and magnetically attached to a hanging bracket (8). A test box (9) is mounted on the hanging bracket (8). The vibrating frame (6) vibrates up and down at the temperature change detection station, the fatigue test station and the liquid test station. The hanging shaft (7) can be controlled to rotate at the acquisition station and the liquid test station. Two test samples (10) are mounted on the test box (9). Inside the test box (9) and at the position corresponding to the two test samples (10), there is a ballast chamber (11) controlled by a pressure control system. A double-ended temperature probe (12) and a double-ended strain sensor (13) are installed in the middle of the ballast chamber (11). The platform (3) is equipped with a corrosion cylinder (14) and a temperature-changing cylinder (15). The temperature-changing cylinder (15) is equipped with two symmetrically arranged temperature control systems (46). The temperature-changing cylinder (15) is equipped with a second air pump (16). The outlet port of the second air pump (16) is connected to a three-way pipe (17). The other two ports of the three-way pipe (17) are connected to the inner cavity of the temperature-changing cylinder (15). The bottom surface of the vibrating frame (6) is equipped with a cover (18) to seal the corrosion cylinder (14) and the temperature-changing cylinder (15). An electron microscope (19), a diffractometer (20), and a visual acquisition probe (21) are respectively installed on the temperature-changing cylinder (15). The frame (1) is equipped with a vertically arranged screw lifting module (22) and a horizontally arranged linear transmission module (23). The screw lifting module (22) is connected to the inspection frame (2) and the linear transmission module (23) is connected to the platform (3). A central control unit (24) is installed on the frame (1). The two monitoring ends of the double-ended temperature probe (12) and the double-ended strain sensor (13) are respectively attached to the two samples (10) to be inspected. The data ends of the electron microscope (19), diffractometer (20), visual acquisition probe (21), double-ended temperature probe (12) and double-ended strain sensor (13) are all connected to the central control unit (24). The position of the corrosion cylinder (14) corresponds to the position of the liquid inspection station. The position of the temperature change cylinder (15) corresponds to the position of the temperature change detection station. The directional guiding system includes a rotary motor (25) and a servo motor (26) mounted on a frame (1). A rotary sleeve (27) is rotatably mounted on the frame (1). The output shaft of the rotary motor (25) is connected to the rotary sleeve (27) via a first belt. The rotary sleeve (27) is fixedly connected to the rotary workstation (5). A drive shaft (52) is rotatably mounted on the inner wall of the rotary sleeve (27). The output shaft of the servo motor (26) is connected to the drive shaft (52) via a second belt. A drive gear ring (51) is mounted on the bottom of the drive shaft (52). An inner frame (28) is fixedly mounted on the inspection frame (2). A first gear ring is rotatably mounted on the inner frame (28) at positions corresponding to the data acquisition station and the temperature change detection station. A helical gear shaft (29) is rotatably mounted on the inner frame (28) at positions corresponding to the fatigue testing station and the liquid inspection station. A second helical gear shaft (31) is rotatably mounted on the inner wall of the helical gear shaft (30) in the liquid inspection station. The top ends of the second helical gear shaft (31) and the two first helical gear shafts (29) are all equipped with helical transmission bevel teeth. The two helical gear shafts (30) are all equipped with vibration transmission bevel teeth and driven gears (32). The two driven gears (32) are meshed with the transmission gear ring (51). A transmission motor (33) is mounted on the bottom surface of the inner frame (28). The output shaft end of the transmission motor (33) is connected to a synchronous belt. The two first helical gear shafts (29) and the second helical gear shaft (31) are all connected to the synchronous belt.

2. The pressure testing device for graphene thermal insulation materials according to claim 1, characterized in that: The vibration assembly includes a rotary guide shaft (34), an eccentric shaft (35), and a hollow shaft (36) rotatably connected to a rotary workstation (5). The tail end of the rotary guide shaft (34) is fixedly equipped with a first driven bevel gear adapted to the rotary transmission bevel gear. The tail end of the eccentric shaft (35) is fixedly equipped with a second driven bevel gear adapted to the vibration transmission bevel gear. Both the hollow shaft (36) and the rotary guide shaft (34) are equipped with linkage bevel gears, which mesh with each other. The eccentric shaft... An eccentric wheel (37) is mounted on the shaft (35). A follower wheel (38) adapted to and connected to the eccentric wheel (37) is rotatably mounted on the vibrating frame (6). A reset spring (39) limited by the rotating work station frame (5) is mounted on the top surface of the vibrating frame (6). A synchronization groove with openings at both ends is fixedly opened inside the hollow shaft (36). A synchronization section that is slidably connected to the synchronization groove is fixedly set on the hanging shaft (7). The cross-sections of the synchronization section and the synchronization groove are both regular hexagons.

3. The pressure testing device for graphene thermal insulation materials according to claim 1, characterized in that: The pressure control system includes a pressure-dividing ring (40) and a pressure-guiding cylinder (41) rotatably connected within the pressure-dividing ring (40). The first air pump (4) is fixedly installed on the test rack (2). A pressure storage tank (42) is installed on the test rack (2). The air outlet of the first air pump (4) is fixedly connected to the pressure storage tank (42). The air outlet of the pressure storage tank (42) is connected to the inner cavity of the pressure-guiding cylinder (41) through a pressure-feeding pipe. Each of the hanging shafts (7) has a pressure-guiding channel (4) with an open top end inside. 3) A connecting pipe (44) is fixedly connected to each pressure guiding channel (43) on the pressure dividing ring (40). The tail end of each connecting pipe (44) is connected to the inner cavity of the pressure guiding cylinder (41) through the pressure dividing ring (40). The other end of each connecting pipe (44) is rotatably connected to the pressure guiding channel (43) at the corresponding position. A valve channel (45) connected to the ballast chamber (11) is fixedly opened on the inspection box (9). The valve channel (45) is adapted to connect with the pressure guiding channel (43).

4. The pressure testing device for graphene thermal insulation materials according to claim 1, characterized in that: The temperature control system (46) includes a temperature controller installed on the temperature-changing cylinder (15), a temperature sensor (47) installed on the temperature-changing cylinder (15) and monitoring the temperature of the inner cavity of the temperature-changing cylinder (15), and a pressure relief valve (48) connected to the inner cavity of the temperature-changing cylinder (15). The temperature control end of the temperature controller is connected to the inner cavity of the temperature-changing cylinder (15). The temperature controller is equipped with a heating element and a liquid nitrogen refrigeration system. The heating element is a silicon molybdenum rod. The temperature control range of the temperature controller is -150℃ to 800℃.

5. The pressure testing device for graphene thermal insulation materials according to claim 3, characterized in that: An electromagnetic valve and a pressure probe are installed on the pressure delivery pipe and each connecting pipe (44), as well as at the two connection points between the tee pipe (17) and the temperature-changing cylinder (15).

6. The pressure testing device for graphene thermal insulation materials according to claim 1, characterized in that: A sealing disc (49) is fixedly installed on the test box (9) and on both sides of the test sample (10). A sealing ring is installed on the sealing disc (49). The outer diameter of the sealing disc (49) is adapted to the inner diameter of the temperature change cylinder (15). The inner diameter of the corrosion cylinder (14) is 1.1 to 1.2 times the radius of the sealing disc (49). An acidic chemical solution is stored in the corrosion cylinder (14). A heating jacket is provided on the corrosion cylinder (14). The heating temperature of the heating jacket is 65°C to 85°C.

7. The pressure testing device for graphene thermal insulation materials according to claim 1, characterized in that: The bottom end of the hanging shaft (7) is equipped with a hanging frame (50). The hanging frame (50) has two symmetrically arranged hanging slots that are slidably connected to the hanging bracket (8). The hanging bracket (8) has a permanent magnet inside. The permanent magnet is magnetically attracted to the hanging frame (50). The hanging bracket (8) is equipped with a handle.

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