On-line measuring device and measuring method for sample abrasion loss under single variable condition

Abstract

The invention relates to an on-line measuring device and a measuring method for sample abrasion loss under a single variable condition, an impact particle swarm generation unit generates particle swarms with different impact speeds, and a measuring box is used for placing a sample and is provided with a temperature adjusting unit, a gas guide unit and a measuring unit for on-line measurement of sample quality. And the controller controls and cooperates to complete the abrasion loss test of the high-temperature oxidation sample under the variable temperature condition and the corrosion atmosphere. According to the method, the erosion rate data is calculated more accurately by monitoring the sample quality in real time, the prediction logic of the damage period caused by erosion is obtained by mastering the relationship between particle erosion and steel sheet quality change under different working conditions, and a theoretical basis is provided for equipment maintenance; the erosion weight loss of the steel sheet sample under the conditions of different particle components, impact angles and medium flow rates at high temperature can be tested, and repeated erosion experiments are performed on a single sample by testing the mass of the erosion steel sheet in real time, so that the change rule of the surface damage degree and the weight loss of the sample along with time under different working conditions is obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of testing or analyzing materials by means of determining the chemical or physical properties of the materials, and in particular to an on-line measuring device and a measuring method for sample wear under single variable conditions. BACKGROUND

[0002] Erosion refers to the process that fluid or solid particles impact the surface of a material at a certain speed and angle, causing the material to gradually wear out. This phenomenon is very common in many industries such as petroleum and chemical industry, aerospace, water transportation and mineral processing. Erosion can cause damage to pipes, fittings, valves and other equipment, shorten the service life of the equipment, affect its long-term performance, and even cause production interruption and economic losses. The replacement of equipment will also bring additional cost.

[0003] Researchers at home and abroad have conducted extensive research on the erosion phenomenon under different working conditions through experimental methods. The main experimental devices used include rotating, jet and pipe flow erosion experimental devices. These devices have their own characteristics, but most experiments are measured by offline measurement of the mass of the eroded object to obtain the erosion rate data under the corresponding working conditions. However, the influence of sample surface damage caused by taking out the sample from the experimental device and the change of erosion environment temperature on the subsequent erosion process is not considered.

[0004] Chinese patent CN102830056A discloses a test assembly of a rotating liquid-solid two-phase flow erosion wear test device. Although it can simulate multi-angle impact of the test piece, it cannot realize corrosion and erosion coupling simulation under high temperature environment. SUMMARY

[0005] The present application solves the problems existing in the prior art and provides an on-line measuring device and a measuring method for sample wear under single variable conditions, which can measure the relationship between particle erosion and mass change of steel sheet (sample) under different working conditions, and provide a basis for revealing the erosion mechanism of oxidized steel sheet.

[0006] The technical solution adopted by the present application is an on-line measuring device for sample wear under single variable conditions, which comprises: a impact particle group generating unit for generating particle groups with different impact speeds; a measuring box for placing samples; a temperature adjusting unit, a gas guiding unit and a measuring unit for on-line measuring the mass of the sample are arranged in cooperation with the measuring box; a controller is arranged in cooperation with the impact particle group generating unit, the temperature adjusting unit, the gas guiding unit and the measuring unit.

[0007] Preferably, the impact particle group generating unit comprises a storage tank for placing particles and an air compressor for providing air flow, a pressure regulating valve is arranged at the output end of the air compressor, the output end of the pressure regulating valve is connected to the gas inlet of the storage tank and the fusion piece respectively, the discharge end of the storage tank is arranged in cooperation with the feeding port of the fusion piece, and the output end of the fusion piece is arranged in cooperation with the sample in the measuring box.

[0008] Preferably, a particle group speed measuring unit is arranged in cooperation with the impact particle group generating unit, and the particle group speed measuring unit comprises a laser beam perpendicular to the particle group output direction of the impact particle group generating unit.

[0009] Preferably, the laser beam is a double laser beam, and the particle group speed is calculated according to the time difference when the particle group passes through the double laser beam with a fixed interval.

[0010] Preferably, a fastener is arranged in the measuring box in cooperation with the sample; an angle adjusting assembly is arranged on the measuring box in cooperation with the fastener; a hook type weighing mechanism is arranged in cooperation with the sample, and the hook of the hook type weighing mechanism penetrates the top of the measuring box and is connected to the sample.

[0011] Preferably, the fastener comprises a mounting seat, the sample is arranged between a side baffle and an adjusting plate of the mounting seat, the adjusting plate is arranged in cooperation with the other side baffle of the mounting seat through a telescopic screw rod, the angle adjusting assembly comprises an adjusting rod penetrating a through hole in the top of the measuring box and being fixedly connected to the top of the mounting seat, a knob is arranged outside the adjusting rod in the top of the measuring box, and a damping piece is arranged in cooperation with the knob between the adjusting rod and the through hole.

[0012] Preferably, a work hole is arranged on the side of the measuring box in cooperation with the telescopic screw rod, and a glove is arranged in cooperation with the work hole.

[0013] Preferably, the air guide unit comprises an air inlet channel and an air outlet channel arranged on the opposite side walls of the measuring box respectively, the air guide direction of the air guide unit is perpendicular to the output direction of the impact particle group generating unit, and a gas treatment assembly is arranged in cooperation with the output end of the air outlet channel.

[0014] A measuring method of the online measuring device for the sample wear amount under single variable conditions, the method comprising testing the wear amount of a high-temperature oxidation sample under variable temperature conditions; The sample is fixed in the measuring box and faces the impact particle group generating unit; the controller controls the temperature adjusting unit to rise to different temperatures at a preset rate and keep constant, in each constant temperature process at different temperatures, the impact particle group generating unit starts to erode, the sample mass is weighed after each erosion, the mass loss data is recorded, and until the sample mass does not change after erosion at a certain temperature, the performance data of the sample against high-temperature erosion is obtained.

[0015] Preferably, the method further comprises testing the wear amount of a high-temperature oxidation sample under a corrosive atmosphere. The sample is fixed in the measuring box, and the impact particle group generating unit is directed; the controller controls the temperature adjusting unit to rise to the fixed temperature at a preset rate and keep constant, and controls the air guiding unit to guide the corrosive gas at a preset speed; the output direction between the impact particle group generating unit and the sample is adjusted, at each different impact angle, the impact particle group generating unit is controlled to start the erosion, after each erosion is completed, the sample mass is weighed, the mass loss data is recorded and the particles are supplemented to repeat the erosion until the sample mass is unchanged after the erosion at the current angle, and the performance data of the sample against high-temperature erosion and the erosion rule curve under the high-temperature corrosion condition are obtained.

[0016] The present application relates to a kind of online measurement device and measurement method of sample wear amount under single variable condition, device is with impact particle group generating unit to generate the particle group of different impact speed, with temperature adjusting unit, air guiding unit and the measuring unit for online measurement sample mass are placed in the measuring box, with controller control cooperates to complete the wear amount test of high-temperature oxidation sample under variable temperature condition, the wear amount test of high-temperature oxidation sample under corrosive atmosphere.

[0017] The beneficial effects of the present application are that: (1) by real-time monitoring sample mass, more accurately calculate erosion rate data, by mastering the relationship between particle erosion and steel sheet mass change under different working conditions, obtain the prediction logic of damage cycle caused by erosion, provide theoretical basis for equipment overhaul; (2) can test the erosion weight loss of steel sample under different particle composition, impact angle and medium flow rate conditions at high temperature, by real-time testing erosion steel mass, repeated erosion experiment is carried out on single sample, and the change rule of sample surface damage degree and weight loss with time under different working conditions is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The device of the present application is shown in the schematic diagram; Figure 2 The structure of the test box of the present application is shown in the schematic diagram; Figure 3 The weight loss change rule of Q690 steel sheet under 300 DEG C, 350 DEG C, 400 DEG C conditions under different erosion particle mass is shown in the schematic diagram; Figure 4 The influence of different erosion angles (30 DEG, 60 DEG, 90 DEG) on the erosion weight loss of Q690 steel sheet under 300 DEG C, HCl atmosphere condition is shown in the schematic diagram. DETAILED DESCRIPTION

[0019] The present application will be further described in detail below in conjunction with examples, but the protection scope of the present application is not limited thereto.

[0020] The present application relates to a kind of on-line measurement device of sample abrasion amount under single variable condition, in implementation process, the device mainly includes the impact particle group generating unit for generating different impact speed of particle group and the measurement box 2 for placing sample 1; In order to better control the impact effect of particle group, it is configured with particle group speed measuring unit 3 for testing the impact speed of particle group; And for sample 1 in measurement box 2, mainly refers to steel sheet in the embodiment, temperature adjusting unit 4 for steel sheet heating is provided, gas guiding unit 5 for introducing corrosion atmosphere (or other experimental atmosphere) and measurement unit 6 for on-line measurement of sample quality are provided; Impact particle group generating unit, temperature adjusting unit 4, gas guiding unit 5 and measurement unit 6 are connected to controller, and the controller carries out the control of the emission of impact particle group, temperature adjusting control, the control of imported atmosphere and the control of on-line measurement of sample quality, which is easily understood by those skilled in the art, and those skilled in the art can set up according to demand.

[0021] In specific implementation process, impact particle group generating unit includes storage tank 7 for placing particles and air compressor 8 for providing airflow, pressure regulating valve 9 is arranged at the output end of air compressor 8, the output end of pressure regulating valve 9 is connected to storage tank 7 and gas inlet of fusion piece 10 respectively, the discharge end of storage tank 7 is matched with the feeding port of fusion piece 10, and the output end of fusion piece 10 is matched with sample 1 in measurement box 2; The pressure of compressed air can be adjusted by pressure regulating valve 9, so that the airflow speed carrying particles can be changed, the erosion particles, such as zirconium oxide particles, in storage tank 7 can be mixed with compressed air in the fusion area of fusion piece 10 to form a uniform particle airflow and be sprayed out of fusion piece 10; The top of storage tank 7 is connected by clamp to ensure its airtightness, and part of the airflow output from the output end of pressure regulating valve 9 also flows downward from the top of storage tank 7, which is beneficial to balance the air pressure and make the particles flow smoothly to fusion piece 10.

[0022] In the present application, fusion piece 10 can be realized by using tee pipe.

[0023] Further, particle group speed measuring unit 3 is matched with the impact particle group generating unit, which includes laser beam 11 perpendicular to the output direction of impact particle group generating unit; In implementation, double laser speed measuring instrument is used, that is, the laser beam is double laser beam 11, and the time difference when particle group passes through double laser beam 11 with fixed spacing is used to calculate the speed of particle group; Generally, the dual-laser velocimeter integrates an adaptive focusing module, adopts a programmable acousto-optic modulator (AOM) to dynamically adjust the laser beam spacing d, the adjustment range is 0.5-5 mm, and is equipped with a high-speed photodiode array with a response time ≤1 ns, so as to realize the speed measurement error ≤±1.2% of the particles with a particle size of 50 μm-5 mm; in the test process, the two laser beams are respectively shot to the target particles, and the speed of the target particles is calculated by measuring the time difference of the target particles passing between the two laser beams; when the target particles pass through the first laser beam, the event is detected and the time is recorded; the target particles continue to move and pass through the second laser beam, the velocimeter records the time when the object passes through the second laser beam, and the speed v of the target particles is d / △t.

[0024] In the measuring box 2, the sample 1 needs to be fixed or suspended for weighing, receiving particle erosion, atmosphere treatment, high-temperature heating, etc. In the specific implementation process, the measuring box 2 is provided with a fastener matched with the sample 1; an angle adjusting assembly is arranged on the measuring box 2 matched with the fastener; a hook type weighing mechanism (a measuring unit 6) is arranged matched with the sample 1, such as a hook type electronic scale, which is used for measuring the mass change of the erosion steel sheet in real time; and a hook of the hook type weighing mechanism penetrates through the top of the measuring box 2 and is connected with the sample 1.

[0025] In the embodiment, the hook type weighing mechanism is used to obtain the relationship between the particle erosion and the mass change of the steel sheet under different working conditions according to the time of the particle erosion test sample and the weight loss of the test sample; in order to ensure the accuracy of the test, three-stage vibration isolation is adopted for the hook type weighing mechanism: the first stage of isolation is a magneto-rheological damper (response frequency 0.1-100 Hz), the second stage of isolation is a floating active compensation platform (based on piezoelectric acceleration sensor feedback), and the third stage of isolation is a digital lock-in amplifier (real-time filtering of 50 / 60 Hz power frequency interference), so as to ensure that the mass measurement resolution reaches 0.1 mg; and an in-situ calibration module is also provided, which is provided with a NIST traceable standard weight set (range 10 mg-100 g), the weight is loaded by a linear voice coil motor, and automatic zero point calibration is realized during the experiment (the calibration period can be set to 1-60 min).

[0026] In the embodiment, the fastener includes a mounting seat 12, the sample 1 is arranged between a side baffle of the mounting seat 12 and an adjusting plate 13, the adjusting plate 13 is arranged matched with the other side baffle of the mounting seat 12 through a telescopic screw rod 14; by operating the telescopic screw rod 14, the position of the adjusting plate 13 can be adjusted, and then the sample 1 can be fixed and loosened. Further, a work hole 15 is arranged on the side of the measuring box 2 matched with the telescopic screw rod 14, a glove is arranged matched with the work hole 15, which is generally a butyl rubber glove, so as to facilitate the operation of the telescopic screw rod 14 in the test box; of course, the work hole 15 can also be used as an observation hole.

[0027] In the embodiment, the angle adjusting assembly comprises an adjusting rod 15 penetrating through a through hole in the top of the measuring box 2 and fixedly connected with the top of the mounting seat 12, and a knob 19 is arranged outside the adjusting rod 15 in the top of the measuring box 2, and the knob 19 is provided with a damping member matched with the through hole, and the angle of the sample 1 and the mounting seat 12 as a whole is conveniently adjusted through the knob 19 and the marks arranged outside the knob 19.

[0028] In the embodiment, the sample is heated by the temperature adjusting unit 4, and different heating temperatures and time are set through the control of the controller, the temperature adjusting range is 100 DEG C ~ 1000 DEG C, the PID-fuzzy compound control algorithm is adopted, and the steady state control of the set temperature ± 2 DEG C is realized.

[0029] Further, the gas guiding unit 5 comprises an air inlet channel 16 and an air outlet channel 17 arranged on the opposite side walls of the measuring box 2 respectively, the air guiding direction of the gas guiding unit 5 is perpendicular to the output direction of the impact particle group generating unit, the output end of the air outlet channel 17 is provided with a gas treatment assembly 18, the environment containing corrosive gases such as HCl and SO2 can be simulated in the test box 2, the steel sheet wear dynamic simulation under the coupling action of corrosion and erosion is realized, the air inlet channel 16 is connected to a gas cylinder, and the air outlet channel 17 is connected to the gas treatment assembly 18 including but not limited to a gas washing cylinder, and the tail gas is discharged after washing.

[0030] The application also relates to a measurement method of an online sample wear amount measuring device under single variable conditions. The method comprises wear amount testing of a high-temperature oxidation sample under variable temperature conditions. The sample 1 is fixed in the measuring box 2 and faces the impact particle group generating unit, the controller controls the temperature adjusting unit 4 to be raised to different temperatures at a preset rate and to be constant temperature, in each constant temperature process at different temperatures, the impact particle group generating unit starts erosion, the sample mass is weighed after each erosion, the mass loss data is recorded, until the sample mass is unchanged after erosion at a certain temperature, and the performance data of the sample against high-temperature erosion are obtained.

[0031] Specifically, a piece of Q690 steel with a size of 20x20x3 mm is fixed at the center of the test box 2 through the telescopic screw rod 14, the side baffle of the mounting seat 12 and the adjusting plate 13 on both sides, the sample 1 is adjusted to an impact angle of 90° through the angle adjusting assembly, and the angle is verified using a laser positioning instrument; the temperature adjusting unit is set to a temperature rising parameter, and the temperature is raised to 300°C at a rate of 10°C / min and kept constant; 10 g of zirconium oxide particles (particle size 500 μm) are weighed and placed in the storage tank 7, the pressure regulating valve 9 is adjusted, the outlet flow rate of the three-way pipe is 20 m / s, and the particle group speed unit 3 is confirmed; the measurement unit and its three-stage vibration isolation system are started; the erosion and measurement units are started simultaneously, the Q690 steel piece is suspended after a single erosion, and the mass loss data is recorded, then the Q690 steel piece is fixed and 10 g of zirconium oxide particles (particle size 500 μm) are added to the storage tank 7, and the above experimental steps are repeated until the mass of the Q690 steel piece does not change, and the mass loss data of the high-temperature oxidized Q690 steel piece under 90° impact at 300°C is obtained. Similarly, the sample is replaced, the temperature is reset, and the mass loss data of the high-temperature oxidized Q690 steel piece under 90° impact at 350°C and 400°C is obtained, as shown in Table 1, which is the multi-particle erosion weight loss data table of the Q690 steel piece under 90° erosion; Table 1 Multi-particle erosion weight loss data table of Q690 steel piece under 90° erosion Erosion particle mass / g 300°C weight loss / mg 350°C weight loss / mg 400°C weight loss / mg 10 0.0102 0.0137 0.0162 20 0.0085 0.0099 0.0116 30 0.0068 0.0074 0.0044 40 0.0060 0.0036 0.0034 50 0.0052 0.0029 0.0021 60 0.0002 0.0003 0.0013 70 0.0001 0.0001 0.0003 80 0.0000 0.0000 0.0000 As shown in Table 1, the weight loss of the Q690 steel piece under different erosion particle masses at 300°C, 350°C and 400°C is shown in Table 1. Figure 3 As shown in Table 1, the weight loss of the Q690 steel piece under different erosion particle masses at 300°C, 350°C and 400°C is shown in Table 1. When the erosion particle mass is relatively light (10 g and 20 g), the weight loss gradually increases as the temperature rises; under 10 g particle erosion, the weight loss at 300°C is 0.0102 mg, which increases to 0.0137 mg at 350°C and reaches 0.0162 mg at 400°C, which indicates that the temperature rise intensifies the oxidation process, leading to thickening of the oxidation film and further aggravating the erosion effect; as the erosion particle mass increases to 30 g and above, the weight loss tends to decrease first and then stabilize as the temperature rises; under 50 g particle erosion, the weight loss at 300°C is 0.0052 mg, which decreases to 0.0029 mg at 350°C and slightly increases to 0.0021 mg at 400°C, but the change is relatively small, which is due to the fact that as the particle mass increases, the impact kinetic energy of the particles on the material surface is relatively stable, and the thin layer of oxidation film formed at high temperature has been completely destroyed, thus leading to insignificant changes in weight loss.

[0032] The change in the mass of the Q690 steel piece can be used to evaluate its high-temperature erosion resistance and provide important reference for the study of the erosion rules of high-temperature oxidized Q690 steel pieces under variable temperature conditions.

[0033] The method also includes testing the wear amount of high-temperature oxidized samples under a corrosive atmosphere; Sample 1 is fixed in measuring chamber 2, facing the impact particle group generating unit; the controller controls the temperature adjustment unit 4 to rise to a fixed temperature at a preset rate and maintain the temperature, and controls the gas guiding unit 5 to introduce corrosive gas at a preset speed; the angle between the output direction of the impact particle group generating unit and sample 1 is adjusted, and the impact particle group generating unit is controlled to start erosion at each different impact angle. After each erosion is completed, the mass of sample 1 is weighed, the mass loss data is recorded, and particles are added to repeat the erosion until the mass of sample 1 remains unchanged after erosion at the current angle, so as to obtain the performance data of sample 1 against high temperature erosion and the erosion law curve under high temperature corrosion conditions.

[0034] Specifically, a 20×20×3mm Q690 steel sheet is fixed to the center of the test chamber 2 on both sides using the adjusting plate 13 and the side baffle of the mounting base 12. The sample is adjusted to an impact angle of 30° using the angle adjustment assembly, and the angle is verified using a laser positioning instrument. The inlet channel of the gas delivery unit 5 is connected to an HCl gas cylinder and the cylinder is opened. The flow rate is adjusted to 0.05 ml / min using a mass flow controller. The outlet channel is connected to a gas washing bottle. The parameters of the temperature adjustment unit 4 are set to increase to 300℃ at a rate of 10℃ / min. The temperature was kept constant at ℃; 10g of zirconia particles (500μm in diameter) were weighed and placed in storage tank 7, and the pressure regulating valve 9 was adjusted to make the flow velocity at the outlet of the three-way pipe reach 20m / s, which was confirmed by particle group velocity measurement unit 3; the measurement unit 6 and its three-stage vibration isolation system were turned on; the erosion and measurement units were started simultaneously. After a single erosion was completed, the adjusting plate 13 was released to suspend the Q690 steel sheet, and the mass loss data was recorded. Then, the Q690 steel sheet was fixed and 10g of zirconia particles (500μm in diameter) were added to storage tank 7. The above experimental steps were repeated until the mass of the Q690 steel sheet remained unchanged, and the mass loss data of the 30° impact of the 300℃ high-temperature oxidized Q690 steel sheet was obtained. Similarly, sample 1 was replaced, the angle was reset and fixed again, and the mass loss data of the 60° and 90° impact of the 300℃ high-temperature oxidized Q690 steel sheet were obtained. Table 2 shows the erosion weight loss data of the 300℃ high-temperature oxidized Q690 steel sheet under HCl atmosphere with multi-angle impact. Table 2. Erosion weight loss data of Q690 steel sheets subjected to multi-angle impact at 300℃ under HCl atmosphere. Erosion particle mass / g 30° angle weight loss / mg 60° angle weight loss / mg 90° angle weight loss / mg 10 0.0258 0.0222 0.0203 20 0.0120 0.0112 0.0164 30 0.0081 0.0084 0.0077 40 0.0027 0.0060 0.0036 50 0.0004 0.0019 0.0016 60 0.0005 0.0003 0.0003 70 0.0003 0.0001 0.0001 like Figure 4 As shown, under conditions of 300℃ and HCl atmosphere, the effects of different erosion angles (30°, 60°, 90°) on the erosion weight loss of Q690 steel sheets are as follows: For lighter erosion particles (10g and 20g), the weight loss decreases first and then increases as the impact angle increases from 30° to 90°. For example, for 10g particles, the weight loss at 30° is 0.0258mg, at 60° it decreases to 0.0222mg, and at 90° it increases to 0.0203mg. This may be because at a smaller angle, the oxidation layer peeling effect caused by particle impact is stronger. As the angle increases to a certain extent, the vertical component of the impact kinetic energy increases, resulting in weaker material wear. For heavier erosion particles (30g and above), the erosion weight loss does not change significantly with the angle. For example, for 50g particles, the weight loss at 30° is 0.0004mg, at 60° it is 0.0019mg, and at 90° it decreases to 0.0016mg. This shows that when the particle mass is larger, its impact kinetic energy is large enough to cause serious damage to the material surface, but the thickness of the thin layer of oxidation film is limited, so the impact angle has a relatively small effect on the erosion weight loss. In summary, under the HCl atmosphere, the effect of different erosion angles (30°, 60°, 90°) on the erosion weight loss of Q690 steel sheets under the condition of HCl atmosphere at 300℃ is significantly different, reflecting the high sensitivity of the erosion weight loss of Q690 steel sheets to angle changes.

[0035] The change in the mass of Q690 steel sheets can be used to evaluate the high-temperature erosion resistance of Q690 steel sheets and provide important reference for the erosion rule research of multi-angle impact of Q690 steel sheets under the condition of HCl atmosphere at 300℃.

[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An online measurement device for sample wear under a single variable condition, characterized in that: The device includes: An impact particle swarm generation unit is used to generate particle swarms with different impact velocities. A measuring box for holding samples; The measuring chamber is equipped with a temperature control unit, a gas guiding unit, and a measuring unit for online measurement of sample mass; A controller is provided to work in conjunction with the impact particle group generating unit, temperature regulation unit, air guiding unit, and measurement unit.

2. The online measurement device for sample wear under a single variable condition according to claim 1, characterized in that: The impact particle generation unit includes a storage tank for holding particles and an air compressor for providing airflow. A pressure regulating valve is provided at the output end of the air compressor. The output end of the pressure regulating valve is connected to the gas inlet of the storage tank and the fusion component, respectively. The discharge end of the storage tank is configured to cooperate with the inlet of the fusion component, and the output end of the fusion component is configured to cooperate with the sample in the measuring chamber.

3. The online measurement device for sample wear under a single variable condition according to claim 2, characterized in that: The impact particle group generating unit is equipped with a particle group velocity measuring unit, which includes a laser beam perpendicular to the particle group output direction of the impact particle group generating unit.

4. The online measurement device for sample wear under a single variable condition according to claim 3, characterized in that: The laser beam is a dual laser beam, and the velocity of the particle group is calculated based on the time difference between the two laser beams with a fixed spacing.

5. The online measurement device for sample wear under a single variable condition according to claim 1, characterized in that: The measuring box is equipped with fasteners that fit the sample; the measuring box equipped with the fasteners is equipped with an angle adjustment component; the measuring box equipped with the sample is equipped with a hook-type weighing mechanism, the hook of the hook-type weighing mechanism passing through the top of the measuring box and connecting to the sample.

6. The online measurement device for sample wear under a single variable condition according to claim 5, characterized in that: The fastener includes a mounting base, with the sample positioned between a side baffle and an adjusting plate of the mounting base. The adjusting plate is connected to the other side baffle of the mounting base via a telescopic screw. The angle adjustment assembly includes an adjusting rod that passes through a through hole in the top of the measuring box and is fixedly connected to the top of the mounting base. A knob is provided on the outside of the adjusting rod on the top of the measuring box, and a damping element is provided between the adjusting rod and the through hole to cooperate with the knob.

7. The online measurement device for sample wear under a single variable condition according to claim 6, characterized in that: The measuring box with the retractable screw has a working hole on its side, and a glove is provided with the working hole.

8. The online measurement device for sample wear under a single variable condition according to claim 1, characterized in that: The gas guiding unit includes an inlet channel and an outlet channel respectively located on opposite side walls of the measuring box. The gas guiding direction of the gas guiding unit is perpendicular to the output direction of the impact particle group generating unit. A gas processing component is provided at the output end of the outlet channel.

9. A method for measuring the wear amount of a sample under a single variable condition using an online measuring device as described in any one of claims 1 to 8, characterized in that: The method includes testing the wear amount of a high-temperature oxidized sample under varying temperature conditions; The sample is fixed in the measuring chamber and oriented towards the impact particle group generating unit. The controller controls the temperature adjustment unit to rise to different temperatures at a preset rate and maintain the temperature. During each temperature maintenance process, the impact particle group generating unit starts erosion. After each erosion is completed, the sample mass is weighed and the mass loss data is recorded until the sample mass remains unchanged after erosion at a certain temperature. The sample's high-temperature erosion resistance performance data is obtained.

10. The measurement method according to claim 9, characterized in that: The method also includes testing the wear amount of high-temperature oxidized samples under a corrosive atmosphere; The sample is fixed in the measuring chamber, facing the impact particle generation unit; the controller controls the temperature adjustment unit to rise to a fixed temperature at a preset rate and maintain the temperature, and controls the gas guiding unit to introduce corrosive gas at a preset speed; the output direction of the impact particle generation unit and the angle between the sample are adjusted, and at each different impact angle, the impact particle generation unit is controlled to start erosion. After each erosion, the sample mass is weighed, the mass loss data is recorded, and particles are added to repeat the erosion until the sample mass remains unchanged after erosion at the current angle, thus obtaining the sample's high-temperature erosion resistance performance data and the erosion law curve under high-temperature corrosion conditions.

Images