CN112284953B - Multielement medium corrosion-erosion coupling test device under ocean temperature-changing simulation environment - Google Patents
Multielement medium corrosion-erosion coupling test device under ocean temperature-changing simulation environment Download PDFInfo
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- CN112284953B CN112284953B CN202011147904.9A CN202011147904A CN112284953B CN 112284953 B CN112284953 B CN 112284953B CN 202011147904 A CN202011147904 A CN 202011147904A CN 112284953 B CN112284953 B CN 112284953B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8411—Application to online plant, process monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/024—Corrosive
Abstract
The invention relates to a multielement medium corrosion-erosion coupling test device in an ocean temperature change simulation environment, which comprises a multielement atmosphere generating and coupling system, a solid particulate mixing system, an erosion particle and salt fog atmosphere coupling device and a corrosion-erosion reaction system, wherein a plurality of salt atmosphere generators, microorganism atmosphere generators and polluted atmosphere generators are communicated with the multielement atmosphere mixing system through air pipes, an ocean environment solid particle generator, a selected particle size solid particle generator and an ocean adhesion solid particle generator are communicated with a stirring mixing heating device through pipelines, the stirring mixing heating device is connected with the erosion particle and salt fog atmosphere coupling device, and the erosion particle and salt fog atmosphere coupling device is connected with the corrosion-erosion reaction system through an erosion output pipeline. The invention can meet the composite detection test of marine atmosphere multi-medium corrosive atmosphere and erosion hard particle multi-medium variable temperature environment in the existing laboratory environment.
Description
Technical Field
The invention relates to accelerated corrosion-erosion test equipment, in particular to an experimental device for simulating an ocean variable temperature environment under the condition of laboratory under the corrosion-erosion coupling of a multi-element medium.
Background
In the environment of changing temperature of ocean atmosphere, the condition of multielement medium corrosion is ubiquitous, so that working parts affected by erosive wear are bound to suffer from the coupling effect of multielement medium corrosion and erosive wear for a long time when being used in the ocean atmosphere environment. Therefore, based on the part of severe service working conditions, part of parts need to be subjected to service testing, and if actual environment testing is utilized, the experimental period is long, and the capital cost is high. Therefore, an experiment device is needed to carry out an accelerated experiment so as to test the multielement medium corrosion-erosion wear coupling resistance of the service material.
Under the existing conditions, the salt spray corrosion and the erosion abrasion are respectively tested by separating environmental parameters, and the coupling promotion effect of a multi-element environment medium is not fully considered in research results. At present, multiple erosion experimental devices are proposed by multiple scientific research units including a seventh institute, a second institute, a fifth institute and the like of medium ship reworking aiming at a single environment, but multiple erosion tests can only be carried out, and the corrosion key factors in the ocean atmospheric environment cannot be added into a test means. Therefore, it is necessary to research the coupling performance of corrosion resistance and erosive wear of working parts in the environment of variable temperature in the ocean atmosphere, and it is more necessary to provide an analysis device for the coupling test of corrosion and erosive wear of multi-component media under laboratory conditions.
Disclosure of Invention
The invention aims to realize effective accelerated experimental simulation of erosion and wear in a marine atmosphere temperature-changing environment in a laboratory environment, so that an experimental test result can truly reflect the damage condition of a sample under the coupling working condition of a multi-medium corrosion environment and the erosion and wear, and the multi-medium corrosion-erosion coupling intelligent test device in the marine temperature-changing simulation environment is provided.
The invention relates to a multielement medium corrosion-erosion coupling test device in an ocean temperature-changing simulation environment, which comprises a multielement atmosphere generating and coupling system, a solid particulate matter mixing system, an erosion particle and salt mist atmosphere coupling device and a corrosion-erosion reaction system;
the multi-element atmosphere generating and coupling system comprises an air compressor, a plurality of salt atmosphere generators, a microbial atmosphere generator, a polluted atmosphere generator, a multi-element atmosphere mixing device and an atmosphere temperature changing device, wherein the air compressor is connected with an air pipe, the plurality of salt atmosphere generators, the microbial atmosphere generator and the polluted atmosphere generator are respectively communicated with a first air pipe through air inlet branch pipes, a mixed gas inlet of the multi-element atmosphere mixing device is connected with one end of a second air pipe, the other end of the second air pipe is respectively communicated with the plurality of salt atmosphere generators, the microbial atmosphere generator and an air outlet branch pipe of the polluted atmosphere generator, and an aerosol generator and an aerosol concentration sensor are arranged inside each salt atmosphere generator; an atmosphere concentration sensor, a gas pressure sensor and a first temperature sensor are arranged in the multi-element atmosphere mixing device; the multi-element atmosphere mixing device is communicated with the atmosphere temperature changing device, an air pressure regulating valve, a second temperature sensor and a pressure sensor are arranged in the atmosphere temperature changing device, and one end of a third air pipe is communicated with an air outlet of the atmosphere temperature changing device;
the solid particle mixing system comprises a marine environment solid particle generator, a selected particle size solid particle generator, a marine adhesion solid particle generator and a stirring mixing heating device, the other end of the third air pipe is respectively connected with the marine environment solid particle generator and an air inlet of the selected particle size solid particle generator, the marine environment solid particle generator is internally provided with the stirring device, and the top of the marine environment solid particle generator is provided with a feeding hole; a plurality of layers of screens are arranged in the selected particle size solid particle generator along the height direction, and a vibration device is arranged at the bottom in the selected particle size solid particle generator; a push rod device is arranged in the marine adhesion type solid particle generator, and a charging opening is formed in the side wall of the marine adhesion type solid particle generator; the bottom discharge ports of the marine environment solid particle generator, the selected particle size solid particle generator and the marine adhesion solid particle generator are communicated with a stirring, mixing and heating device through a connecting pipe, and a third temperature sensor, a heater and a first stirring device are arranged in the stirring, mixing and heating device;
the stirring, mixing and heating device is communicated with the erosion particle and salt mist atmosphere coupling device through a pipeline, the erosion particle and salt mist atmosphere coupling device comprises two coupling air inlet pipes and a coupling stirring device, the coupling stirring device is arranged in the erosion particle and salt mist atmosphere coupling device, the two coupling air inlet pipes are positioned on the left side and the right side of the erosion particle and salt mist atmosphere coupling device, one end of each coupling air inlet pipe is communicated with the air inlet end of the erosion particle and salt mist atmosphere coupling device, and the other end of each coupling air inlet pipe is communicated with a third air pipe;
the corrosion-erosion reaction system comprises a reaction chamber, an erosion output pipeline, a support, a salt spray concentration sensor and a speed sensor, wherein one end of the erosion output pipeline is connected with an outlet of the erosion particle and salt spray atmosphere coupling device, the other end of the erosion output pipeline extends into the reaction chamber from the roof of the reaction chamber, the support is arranged below the outlet of the erosion output pipeline, a workpiece is arranged on the support, and the salt spray concentration sensor and the speed sensor are arranged in the reaction chamber.
The invention realizes the simulation of the corrosion working condition of the multi-element medium in the marine environment by utilizing the multi-element atmosphere generator and the variable temperature control system, and simultaneously realizes the multi-element medium corrosion-erosion test in the marine variable temperature simulation environment by combining the solid particle generating device and the erosion particle and salt mist atmosphere coupling system. On the basis, the high-speed camera and the control system are utilized to realize the intelligent judgment and the control on-off of the multi-medium corrosion-erosion test. The invention can satisfy the composite intelligent detection test of marine atmosphere multi-medium corrosive atmosphere and erosion hard particle multi-medium variable temperature environment in the existing laboratory environment, the variety and the state of the multi-medium are controllable, the workpiece to be eroded can be selected in a diversified manner according to the actual service state, the service damage expression in various erosion environments can be satisfied, the design is flexible, and the problem of simulation of the coupling failure laboratory for simulating the severe marine service working condition is solved.
Drawings
FIG. 1 is a schematic structural diagram of a multi-media corrosion-erosion coupling test device in a marine temperature-changing simulation environment according to the present invention;
in the figure: 1-an air compressor, 2-a filtering device, 3-a multi-element atmosphere mixing device, 4-an atmosphere concentration sensor, 5-a gas pressure sensor, 6-a first temperature sensor, 7-an air pressure regulating valve, 8-a pressure sensor, 9-a second temperature sensor, 10-an atmosphere temperature changing device, 11-a first salt atmosphere generator, 12-a second salt atmosphere generator, 13-a microbial atmosphere generator, 14-a third salt atmosphere generator, 15-a fourth salt atmosphere generator, 16-a polluted atmosphere generator, 17-a heat preservation material layer, 18-a marine environment solid particle generator, 19-a feeding port, 20-a selected particle size solid particle generator and 21-a marine adhesion solid particle generator, 22-screen mesh, 23-push rod device, 24-charging hole, 25-vibration device, 26-stirring mixing heating device, 27-first stirring device, 28-heater, 29-ultrasonic homogenizing device, 30-erosion particle and salt fog atmosphere coupling device, 31-heat insulation layer, 32-fourth temperature sensor, 33-erosion output pipeline, 34-heating device, 35-corrosion-erosion reaction system, 36-high speed camera, 37-rotary lateral clamp, 38-speed sensor, 39-bracket, 40-pressure sensor and 41-recovery tank.
Detailed Description
The first embodiment is as follows: the multielement medium corrosion-erosion coupling test device in the ocean temperature-changing simulation environment comprises a multielement atmosphere generating and coupling system, a solid particulate matter mixing system, an erosion particle and salt mist atmosphere coupling device 30 and a corrosion-erosion reaction system 35;
the multi-element atmosphere generating and coupling system comprises an air compressor 1, a plurality of salt atmosphere generators, a microbial atmosphere generator 13, a polluted atmosphere generator 16, a multi-element atmosphere mixing device 3 and an atmosphere temperature changing device 10, wherein the air compressor 1 is connected with an air pipe 1-1, the plurality of salt atmosphere generators, the microbial atmosphere generator 13 and the polluted atmosphere generator 16 are respectively communicated with a first air pipe 1-1 through air inlet branch pipes, a mixed gas inlet of the multi-element atmosphere mixing device 3 is connected with one end of a second air pipe 3-1, the other end of the second air pipe 3-1 is respectively communicated with air outlet branch pipes of the plurality of salt atmosphere generators, the microbial atmosphere generator 13 and the polluted atmosphere generator 16, and an aerosol generator and an aerosol concentration sensor are arranged inside each salt atmosphere generator; an atmosphere concentration sensor 4, a gas pressure sensor 5 and a first temperature sensor 6 are arranged in the multi-element atmosphere mixing device 3; the multi-element atmosphere mixing device 3 is communicated with an atmosphere temperature changing device 10, an air pressure adjusting valve 7, a second temperature sensor 9 and a pressure sensor 8 are arranged inside the atmosphere temperature changing device 10, and one end of a third air pipe 10-1 is communicated with an air outlet of the atmosphere temperature changing device 10;
the solid particle mixing system comprises a marine environment solid particle generator 18, a selected particle size solid particle generator 20, a marine adhesion type solid particle generator 21 and a stirring mixing heating device 26, the other end of a third air pipe 10-1 is respectively connected with the marine environment solid particle generator 18 and an air inlet of the selected particle size solid particle generator 20, the marine environment solid particle generator 18 is internally provided with the stirring device, and the top of the marine environment solid particle generator 18 is provided with a feeding hole 19; a plurality of layers of screens 22 are arranged in the selected particle size solid particle generator 20 along the height direction, and a vibration device 25 is arranged at the bottom in the selected particle size solid particle generator 20; a push rod device 23 is arranged in the marine adhesion solid particle generator 21, and a charging opening 24 is formed in the side wall of the marine adhesion solid particle generator 21; the bottom discharge ports of the marine environment solid particle generator 18, the selected particle size solid particle generator 20 and the marine adhesion solid particle generator 21 are communicated with a stirring, mixing and heating device 26 through connecting pipes, and a third temperature sensor, a heater 28 and a first stirring device 27 are arranged in the stirring, mixing and heating device 26;
the stirring, mixing and heating device 26 is communicated with the erosion particle and salt fog atmosphere coupling device 30 through a pipeline, the erosion particle and salt fog atmosphere coupling device 30 comprises two coupling air inlet pipes 30-1 and a coupling stirring device 30-2, the coupling stirring device 30-2 is arranged in the erosion particle and salt fog atmosphere coupling device 30, the two coupling air inlet pipes 30-1 are positioned on the left side and the right side of the erosion particle and salt fog atmosphere coupling device 30, one end of each coupling air inlet pipe 30-1 is communicated with the air inlet end of the erosion particle and salt fog atmosphere coupling device 30, and the other end of each coupling air inlet pipe 30-1 is communicated with a third air pipe 10-1;
the corrosion-erosion reaction system 35 comprises a reaction chamber 42, an erosion output pipeline 33, a bracket 39, a salt spray concentration sensor and a speed sensor 38, wherein one end of the erosion output pipeline 33 is connected with an outlet of the erosion particle and salt spray atmosphere coupling device 30, the other end of the erosion output pipeline 33 extends into the reaction chamber 42 from the chamber top of the reaction chamber 42, the bracket 39 is arranged below the outlet of the erosion output pipeline 33, a workpiece is arranged on the bracket 39, and the salt spray concentration sensor and the speed sensor 38 are arranged in the reaction chamber 42.
The embodiment can meet the requirement of a multi-medium corrosion-erosion detection test in the existing ocean temperature-changing simulation environment, the type and concentration of multi-medium corrosion and solid particles are controllable, the erosion angle can be freely adjusted, the erosion-erosion test can be intelligently stopped, the design is flexible, and the problem of coupled failure laboratory simulation of multi-medium corrosion and erosion abrasion in a complex and severe ocean environment can be solved.
The second embodiment is as follows: the present embodiment is different from the first embodiment in that a filter 2 is provided in the second air tube 3-1.
The filtering device according to the present embodiment filters various particulate matters that may be present in each atmosphere generating device by means of a plurality of screens.
The third concrete implementation mode: the difference between the first or second embodiment is that the air inlet branch and the air outlet branch of the plurality of salt atmosphere generators, the microbial atmosphere generator 13 and the polluted atmosphere generator 16 are respectively provided with an air pressure flow regulating valve.
The fourth concrete implementation mode: the present embodiment is different from the first to the third embodiments in that 4 to 6 salt atmosphere generators are installed in the multi-element atmosphere generating and coupling system.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is that an ultrasonic homogenizing device 29 is further disposed in the erosion particle and salt fog atmosphere coupling device 30.
The sixth specific implementation mode is as follows: the present embodiment is different from one of the first to fifth embodiments in that the third air tube 10-1 is coated with the thermal insulation material layer 17.
The seventh embodiment: this embodiment differs from one of the first to sixth embodiments in that a microbial culture medium is contained in the microbial atmosphere generator 13.
The specific implementation mode is eight: the present embodiment is different from one of the first to seventh embodiments in that a fourth temperature sensor 32 is provided on a pipeline connecting the erosion output pipeline 33 and the erosion particle and salt fog atmosphere coupling device 30.
The specific implementation method nine: the present embodiment is different from the first to eighth embodiments in that a high-speed camera 36 is further provided in the reaction chamber 42.
The detailed implementation mode is ten: the difference between this embodiment and one of the first to ninth embodiments is that a recovery tank 41 is provided at the bottom of the reaction chamber 42.
Example (b): the multielement medium corrosion-erosion coupling test device in the ocean temperature change simulation environment comprises a multielement atmosphere generating and coupling system, a solid particulate matter mixing system, an erosion particle and salt mist atmosphere coupling device 30 and a corrosion-erosion reaction system 35;
the multi-element atmosphere generating and coupling system comprises an air compressor 1, four salt atmosphere generators, a microbial atmosphere generator 13, a polluted atmosphere generator 16 (with a special air inlet), a multi-element atmosphere mixing device 3 and an atmosphere temperature changing device 10, wherein the air compressor 1 is connected with air pipes 1-1, the four salt atmosphere generators are respectively a first salt atmosphere generator 11, a second salt atmosphere generator 12, a third salt atmosphere generator 14 and a fourth salt atmosphere generator 15, the four salt atmosphere generators, the microbial atmosphere generator 13 and the polluted atmosphere generator 16 are respectively communicated with the first air pipe 1-1 through air inlet branch pipes, a mixed gas inlet of the multi-element atmosphere mixing device 3 is connected with one end of the second air pipe 3-1, and the other end of the second air pipe 3-1 is respectively communicated with the four salt atmosphere generators, The microbial atmosphere generator 13 is communicated with an air outlet branch pipe of the polluted atmosphere generator 16, and an aerosol generator and an aerosol concentration sensor are arranged in each salt atmosphere generator; an atmosphere concentration sensor 4, a gas pressure sensor 5 and a first temperature sensor 6 are arranged in the multi-element atmosphere mixing device 3, and air pressure flow regulating valves are respectively arranged on air inlet branch pipes and air outlet branch pipes of a plurality of salt atmosphere generators, microbial atmosphere generators 13 and polluted atmosphere generators 16; the multi-element atmosphere mixing device 3 is communicated with an atmosphere temperature changing device 10, an air pressure regulating valve 7, a second temperature sensor 9 and a pressure sensor 8 are arranged inside the atmosphere temperature changing device 10, and one end of a third air pipe 10-1 is communicated with an air outlet of the atmosphere temperature changing device 10;
the solid particle mixing system comprises a marine environment solid particle generator 18, a selected particle size solid particle generator 20, a marine adhesion type solid particle generator 21 and a stirring mixing heating device 26, the other end of a third air pipe 10-1 is respectively connected with the marine environment solid particle generator 18 and an air inlet of the selected particle size solid particle generator 20, the marine environment solid particle generator 18 is internally provided with the stirring device, and the top of the marine environment solid particle generator 18 is provided with a feeding hole 19; a plurality of layers of screens 22 are arranged in the selected particle size solid particle generator 20 along the height direction, and a vibration device 25 is arranged at the bottom in the selected particle size solid particle generator 20; a push rod device 23 is arranged in the marine adhesion type solid particle generator 21, a push rod plate 23-1 is arranged on a connecting rod of the push rod device 23, and a charging opening 24 is formed in the side wall of the marine adhesion type solid particle generator 21; the bottom discharge ports of the marine environment solid particle generator 18, the selected particle size solid particle generator 20 and the marine adhesion solid particle generator 21 are communicated with a stirring, mixing and heating device 26 through connecting pipes, and a temperature sensor, a heater 28 and a first stirring device 27 are arranged in the stirring, mixing and heating device 26;
the stirring mixing heating device 26 is communicated with the erosion particle and salt fog atmosphere coupling device 30 through a pipeline, a fourth temperature sensor 32 is arranged on the pipeline connected with the erosion particle and salt fog atmosphere coupling device 30 through an erosion output pipeline 33, the erosion particle and salt fog atmosphere coupling device 30 comprises an ultrasonic homogenizing device 29, two coupling air inlet pipes 30-1 and a coupling stirring device 30-2, the coupling stirring device 30-2 is arranged in the erosion particle and salt fog atmosphere coupling device 30, the two coupling air inlet pipes 30-1 are arranged on the left side and the right side of the erosion particle and salt fog atmosphere coupling device 30, one end of each coupling air inlet pipe 30-1 is communicated with the air inlet end of the erosion particle and salt fog atmosphere coupling device 30, the other end of the coupling air inlet pipe 30-1 is communicated with a third air pipe 10-1, a heat insulation layer 31 is coated outside the coupling air inlet pipe 30-1, the ultrasonic homogenizing device 29 is arranged on one side of the edge of the erosion particle and salt spray atmosphere coupling device and controls the ultrasonic homogenizing frequency through a control system;
the corrosion-erosion reaction system 35 comprises a reaction chamber 42, an erosion output pipeline 33, a support 39, a salt mist concentration sensor and a speed sensor 38, wherein the support 39 is a universal support, one end of the erosion output pipeline 33 is connected with an outlet of an erosion particle and salt mist atmosphere coupling device 30, the other end of the erosion output pipeline 33 extends into the reaction chamber 42 from the roof of the reaction chamber 42, the support 39 is arranged below the outlet of the erosion output pipeline 33, a workpiece is arranged on the support 39, the salt mist concentration sensor, the speed sensor 38, a high-speed camera 36, a heating device 34, a rotary lateral clamp 37 and a pressure sensor 40 are arranged in the reaction chamber 42, a recovery tank 41 is arranged at the bottom of the reaction chamber 42, the speed sensor 38 measures the erosion speed in the marine environment corrosion and erosion wear coupling test, the pressure sensor 40 is arranged between the universal support 39 and the base thereof, the rotary lateral clamp 37 can be used for recording the stress condition of a sample in the corrosion/erosion process in real time, the rotary lateral clamp 37 can be used for carrying out multi-angle rotary erosion test on the sample of an actual sample level, the high-speed camera can be used for monitoring the damage condition of the sample to be tested in real time, intelligently identifying the damage condition of the sample/test piece and stopping the test according to the identification result by using the control system.
In this embodiment, the four salt atmosphere generators are respectively added with the following substances: cl-、SO4 2-、NO3 -And CO3 2-A salt solution; the microbial atmosphere generator mainly comprises marine bacteria and the like; the polluted atmosphere generator mainly comprises:SO2and the like in polluted atmosphere; the marine environment solid particle generator mainly comprises marine specific solid particles such as coral fragments; the selected particle size solid particle generator mainly comprises gravel, broken stone and other particulate matters with particle identification; the marine adhesion solid particles mainly include adhesion particles such as marine mud slurry.
The valve between the multi-element solid particle generator and the stirring, mixing and heating device is controlled by the solid-liquid control module 44. The atmosphere control system 45 is used to control the valves on the four salt atmosphere generators, the microbial atmosphere generator 13, and the contaminated atmosphere generator 16. The environmental control module 43 is used to control the heating device 34, the high speed camera 36, the speed sensor 38, the pressure sensor 40, and the devices within the multi-atmosphere mixing apparatus 3 and the atmosphere temperature changing apparatus 10.
In this example, a single erosion wear test can be performed if the multi-element atmosphere generator is turned off, which can meet the needs of a particular situation.
The coupling experiment method implemented by applying the multielement medium corrosion-erosion coupling experiment device in the marine variable temperature simulation environment is realized according to the following steps:
s1, starting equipment, starting a control system, and setting the type and environmental parameters of each corrosive medium to be tested through an environmental control module;
s2, starting a multi-element atmosphere generator according to actual test options, setting parameters of a solid generator, and filling each atmosphere and each solid device;
s3, placing a sample in the device, and adjusting the universal support to adjust the erosion angle;
s4, starting the gas generating device, and feeding back parameters of each sensor by the control system;
s5, starting service test when the set environmental parameters are reached;
s6, feeding back all environmental parameters, corrosion concentration and erosion speed in real time, and further adjusting the generator to correct the corrosion concentration through the feedback control system 46 when the corrosion concentration is lower than a set value;
s7, the high-speed camera intelligently identifies the erosion damage area, and whether the test is continued or not is determined according to the judgment result;
and S8, recording the erosion speed, the parameters of the multi-element sensor and the corrosion concentration, and completing the service test of the coupling performance.
Claims (10)
1. The multi-medium corrosion-erosion coupling test device under the ocean temperature change simulation environment is characterized by comprising a multi-atmosphere generating and coupling system, a solid particulate mixing system, an erosion particle and salt mist atmosphere coupling device (30) and a corrosion-erosion reaction system (35);
the multi-element atmosphere generating and coupling system comprises an air compressor (1), a plurality of salt atmosphere generators, a microorganism atmosphere generator (13), a polluted atmosphere generator (16), a multi-element atmosphere mixing device (3) and an atmosphere temperature changing device (10), the air compressor (1) is connected with a first air pipe (1-1), the multiple salt atmosphere generators, the microbial atmosphere generator (13) and the polluted atmosphere generator (16) are respectively communicated with the first air pipe (1-1) through air inlet branch pipes, a mixed gas inlet of the multi-element atmosphere mixing device (3) is connected with one end of a second air pipe (3-1), the other end of the second air pipe (3-1) is respectively communicated with the air outlet branch pipes of the multiple salt atmosphere generators, the microbial atmosphere generator (13) and the polluted atmosphere generator (16), and an aerosol generator and an aerosol concentration sensor are arranged inside each salt atmosphere generator; an atmosphere concentration sensor (4), a gas pressure sensor (5) and a first temperature sensor (6) are arranged in the multi-element atmosphere mixing device (3); the multi-atmosphere mixing device (3) is communicated with the atmosphere temperature changing device (10), an air pressure regulating valve (7), a second temperature sensor (9) and a pressure sensor (8) are arranged inside the atmosphere temperature changing device (10), and one end of a third air pipe (10-1) is communicated with an air outlet of the atmosphere temperature changing device (10);
the solid particle mixing system comprises a marine environment solid particle generator (18), a selected particle size solid particle generator (20), a marine adhesion type solid particle generator (21) and a stirring mixing heating device (26), the other end of a third air pipe (10-1) is respectively connected with air inlets of the marine environment solid particle generator (18) and the selected particle size solid particle generator (20), the marine environment solid particle generator (18) is internally provided with the stirring device, and the top of the marine environment solid particle generator (18) is provided with a feed inlet (19); a plurality of layers of screens (22) are arranged in the selected particle size solid particle generator (20) along the height direction, and a vibration device (25) is arranged at the bottom in the selected particle size solid particle generator (20); a push rod device (23) is arranged in the marine adhesion solid particle generator (21), and a charging opening (24) is formed in the side wall of the marine adhesion solid particle generator (21); the bottom discharge ports of the marine environment solid particle generator (18), the selected particle size solid particle generator (20) and the marine adhesion solid particle generator (21) are communicated with a stirring, mixing and heating device (26) through connecting pipes, and a third temperature sensor, a heater (28) and a first stirring device (27) are arranged in the stirring, mixing and heating device (26);
the stirring, mixing and heating device (26) is communicated with the erosion particle and salt fog atmosphere coupling device (30) through a pipeline, the erosion particle and salt fog atmosphere coupling device (30) comprises two coupling air inlet pipes (30-1) and a coupling stirring device (30-2), the coupling stirring device (30-2) is arranged in the erosion particle and salt fog atmosphere coupling device (30), the two coupling air inlet pipes (30-1) are positioned on the left side and the right side of the erosion particle and salt fog atmosphere coupling device (30), one end of each coupling air inlet pipe (30-1) is communicated with the air inlet end of the erosion particle and salt fog atmosphere coupling device (30), and the other end of each coupling air inlet pipe (30-1) is communicated with a third air pipe (10-1);
the corrosion-erosion reaction system (35) comprises a reaction chamber (42), an erosion output pipeline (33), a support (39), a salt spray concentration sensor and a speed sensor (38), wherein one end of the erosion output pipeline (33) is connected with an outlet of an erosion particle and salt spray atmosphere coupling device (30), the other end of the erosion output pipeline (33) extends into the reaction chamber (42) from the chamber top of the reaction chamber (42), the support (39) is arranged below the outlet of the erosion output pipeline (33), a workpiece is placed on the support (39), and the salt spray concentration sensor and the speed sensor (38) are arranged in the reaction chamber (42).
2. The multielement medium corrosion-erosion coupling test device under the marine temperature change simulation environment according to claim 1, characterized in that the second air pipe (3-1) is provided with a filtering device (2).
3. The corrosion-erosion coupling test device for the multi-media in the marine temperature-changing simulation environment according to claim 1, wherein air pressure flow regulating valves are respectively installed on an air inlet branch pipe and an air outlet branch pipe of the plurality of salt atmosphere generators, the microbial atmosphere generators (13) and the polluted atmosphere generators (16).
4. The multi-medium corrosion-erosion coupling test device under the ocean temperature change simulation environment according to claim 1, wherein 4-6 salt atmosphere generators are arranged in the multi-atmosphere generating and coupling system.
5. The multielement medium corrosion-erosion coupling test device under the marine variable temperature simulation environment according to claim 1, wherein an ultrasonic homogenizing device (29) is further arranged in the erosion particle and salt mist atmosphere coupling device (30).
6. The corrosion-erosion coupling test device for the multi-medium in the marine temperature-changing simulation environment according to claim 1, wherein the third air pipe (10-1) is coated with a heat-insulating material layer (17).
7. The corrosion-erosion coupling test device for the multi-media in the marine temperature change simulation environment according to claim 1, wherein a microbial culture medium is filled in the microbial atmosphere generator (13).
8. The multi-medium corrosion-erosion coupling test device under the marine temperature change simulation environment according to claim 1, wherein a fourth temperature sensor (32) is arranged on a pipeline connecting the erosion output pipeline (33) with the erosion particle and salt fog atmosphere coupling device (30).
9. The corrosion-erosion coupling test device for the multi-media in the marine temperature change simulation environment according to claim 1, wherein a high-speed camera (36) is further arranged in the reaction chamber (42).
10. The corrosion-erosion coupling test device for multi-media in a marine temperature-changing simulation environment according to claim 1, wherein a recovery tank (41) is arranged at the bottom of the reaction chamber (42).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011147904.9A CN112284953B (en) | 2020-10-23 | 2020-10-23 | Multielement medium corrosion-erosion coupling test device under ocean temperature-changing simulation environment |
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| CN202011147904.9A CN112284953B (en) | 2020-10-23 | 2020-10-23 | Multielement medium corrosion-erosion coupling test device under ocean temperature-changing simulation environment |
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