CN104849198A - Erosion-corrosion experiment device for simulating spray splashing area - Google Patents
Erosion-corrosion experiment device for simulating spray splashing area Download PDFInfo
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Abstract
The invention discloses an erosion-corrosion experiment device for simulating a spray splashing area. The experiment device is supported by a base and comprises a lifting system, a sample clamping system, a power system, an injection system, an ultraviolet illumination aging system, an electrochemical testing system and a temperature control system, wherein a hydraulic lifting frame is fixedly arranged on the base and is controlled to ascend or descend by a pedal or a pressure relief knob; the sample clamping system and the power system are mounted on the hydraulic lifting frame; a medium groove is formed in one side of the hydraulic lifting frame; the sample clamping system is arranged inside the medium groove; the upper part of the medium groove is sleeved by a sealing cover, and the sealing cover and the medium groove are sealed through a rubber sealing ring. According to the erosion-corrosion experiment device, the influence on a material erosion-corrosion behavior caused by factors such as wave impact strength, impact period, sand content, oxygen content, temperature and illumination can be researched, the failure process of an ocean spray splashing area structure is accurately simulated, and the defects of a conventional material erosion-corrosion research device for simulating a splashing area are overcome.
Description
Technical field
The present invention relates to a kind of erosion-corrosion experimental device and method, the erosion-corrosion research devices and methods therefor specifically under simulation waves splash about district's many samples Wet/Dry Cyclic Conditions.
Background technology
The complicated harsh corrosion environment in ocean has fettered the paces of marine resources development, and the corrosion protection research of marine structure is contain the heat subject do not waned for a long time always.In order to the convenience studied, usually marine corrosion environment is divided into: marine atmosphere zone, waves splash about district, Tidal zone, continuous immersion zone and ooze district.Wherein, the structure in the district that is in that waves splash about because of be subject to seawater splash, sunlight irradiation, alternation of wetting and drying, surperficial oxygen supply fully etc. multiple harsh factor synergy and become the most serious region of marine corrosion, its main failure forms is generally the erosion-corrosion under wave impact force and marine corrosion synergy, is the key area of marine corrosion research.At present, the corrosion research in waves splash about district is main mainly with real extra large lacing film analysis, but this method often exists, and the test period is long, cost is high, test figure dispersed comparatively large, can not specific factor analysis be carried out, and be difficult to the problem such as etch state of Real-Time Monitoring sample.Given this, be necessary to invent the laboratory simulation erosion-corrosion tester of waves splash about in ocean plot structure, and corresponding method is provided.For the material erosion-corrosive nature research device in simulation waves splash about in ocean district, existing correlative study paper or publication at present.But because the corrosion environment influence factor of splash zone is more, as salinity, wave size, wave period, sand cut, oxygen level, illumination, temperature etc., existing apparatus only can realize the research of part influence factor, and can not include the synergistic result of numerous influence factor in research range.Therefore, in order to can more comprehensively accurate evaluation material at the failure procedure in waves splash about district, contrive equipment needs the combined action considering many factors, its experimental situation is controlled, to study the impact of specific factor on erosion-corrosion behavior, acquired results is to erosion-corrosion mechanism research, safeguard procedures optimization, and the screening of material all has important directive significance.
Summary of the invention
For solving the problem, the invention provides a kind of erosion-corrosion experimental device of simulation waves splash about district, the factors such as wave stroke speed, impulse period, sand cut, oxygen level, temperature, illumination of can studying are on the impact of material erosion-corrosion behavior.In addition, the electrochemical in-situ monitoring of material in experimentation, can be carried out, contribute to analyzing the action rule of corrosion component in material erosion-corrosion failure process.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of simulation waves splash about district's erosion-corrosion experimental device, described experimental provision is support with base, comprises jacking system, specimen clamping system, power system, spraying system, ultraviolet lighting ageing system, electrochemical test system and temperature control system, base is fixed with hydraulic lifting frame, by rising or the decline of pedal or pressure release knob hydraulic control crane, specimen clamping system and power system hydraulic lifting frame be equipped with, hydraulic lifting frame side is provided with media slot, installation for storing corrosive medium and all the other systems is fixed, and specimen clamping system footprint is inner in media slot, for ensureing that corrosive medium exempts to be affected by the external environment, be set with gland bonnet above described media slot, and by rubber seal, the two sealed, gland bonnet central aperture is so that transmission shaft passes through, aperture perimeters is processed with annular groove, not volatile liquid medium is filled in annular groove, transmission shaft is provided with U-shaped gland bonnet, U-shaped gland bonnet lower surface to be down in annular groove below medium liquid level, achieve the sealing completely of media slot, to reach the object of oxygen content in accurate control medium groove, motor in described power system is fixed on the top of crane, described motor speed is adjustable, motor output torque is transferred on transmission shaft by small belt pulley, belt, big belt pulley, shaft coupling successively, and then drive the specimen clamping system be fixed on transmission shaft to rotate, described transmission shaft is equipped with bearing, and be fixedly connected with hydraulic lifting frame by fixed cross beam, to improve the stability of transmission shaft, the rubber-coated protective sleeve of outside surface of described transmission shaft, can avoid ejection medium to cause erosion damage to it, described specimen clamping system comprises specimen mounting, upper specimen mounting hold-down nut, lower specimen mounting, lower specimen mounting hold-down nut, L-type support, sample fixation screw bolt 177 and bracket fixing bolt, described upper specimen mounting and lower specimen mounting are fixed on transmission shaft respectively by upper specimen mounting hold-down nut and lower specimen mounting hold-down nut, described upper specimen mounting and lower specimen mounting are cylindrical, circumferentially be uniformly distributed 12 locating slots, each locating slot is all provided with L-type support, L-type support is fixed with 9 short chi samples by sample fixation screw bolt, be mainly used in erosion-erosion profile, weightless and Analysis on Mechanism and 3 long chi samples are for the electrochemical monitoring in erosion-corrosion process, described L-type support can move along positioning groove length direction, namely the radial direction going up specimen mounting or lower specimen mounting moves, for the distance between adjusting sample and nozzle, L-type support can be fixed by bracket fixing bolt, described electrochemical test system comprises multi-channel electrochemical workstation, electrode wires, electrode wires seal and corresponding electrode, 3 long chi samples are respectively as the first working electrode, the second working electrode and the 3rd working electrode, the upper end experimental situation of 3 working electrodes is identical with short chi sample, lower end is dipped in corrosive medium all the time, shared rotation contrast electrode is installed at distance from bottom 3 working electrode certain position places of lower specimen mounting and rotates auxiliary electrode, together rotate with 3 working electrodes in experimentation, form rotation electrode system, the different radial position of the upper surface of upper specimen mounting is provided with the first working electrode conducting ring of mutually insulated, the second working electrode conducting ring, the 3rd working electrode conducting ring, contrast electrode conducting ring and auxiliary electrode conducting ring successively, by 5 wires respectively with the first working electrode, the second working electrode, the 3rd working electrode, rotate contrast electrode and rotate auxiliary electrode and be connected, gland bonnet lower surface is equipped with carbon brush supports, the first working electrode carbon brush, the second working electrode carbon brush, the 3rd working electrode carbon brush, contrast electrode carbon brush and auxiliary electrode carbon brush carbon brush supports be equipped with, contact with auxiliary electrode conducting ring with the first working electrode conducting ring, the second working electrode conducting ring, the 3rd working electrode conducting ring, contrast electrode conducting ring respectively, ensure to carry out electro-chemical test continuously in sample rotary course, first working electrode carbon brush, the second working electrode carbon brush, the 3rd working electrode carbon brush, contrast electrode carbon brush and auxiliary electrode carbon brush are connected with multi-channel electrochemical workstation by electrode wires, adopt electrode wires seal to seal between electrode wires and gland bonnet, Electrochemical results in experimentation contains the corrosion information that long chi sample is dipped in media fraction, the impact caused is corroded in order to deduct territory, long chi sample continuous immersion zone, described electrochemical test system also comprises compensating module, comprise electrode suppor, entirely soak sample, contrast electrode and auxiliary electrode, described electrode suppor is fixed on the inwall place of media slot, electrode suppor underhung soaks sample entirely, and described contrast electrode, auxiliary electrode are identical with above-mentioned rotation electrode system with the relative position entirely soaking sample, long chi sample corrosion rate is deducted the corrosion rate of full leaching sample, be the corrosion component of sample under erosion-corrosion synergy, described spraying system comprises mortar pump, enter pump line road, circulation fluid export pipeline, outlet regulating valve, bypass valve, draining valve and nozzle, corrosive medium enters mortar pump along entering pump line road, enter in circulation fluid export pipeline through outlet regulating valve, with after be injected on the sample of rotation through nozzle, circulation fluid export pipeline is equipped with tensimeter, flowmeter and outlet regulating valve, by the spouting velocity of outlet regulating valve adjustment medium, enter between pump line road and mortar pump and be provided with bypass valve, stirring vane is installed in the end of transmission shaft, to improve the degree of uniformity of medium, mortar pump side is provided with draining valve, ultraviolet lighting ageing system comprises light intensity controller, annular quartz burner and division board, the impact of specimen surface coating aging on erosion-corrosive nature can be investigated in experimentation, quartz burner is arranged on the inwall place of media slot, for preventing ejection medium, damage is caused to fluorescent tube, in nozzle periphery, division board is installed, quartz burner is connected with light intensity controller, can control the illumination condition in experimentation, described temperature control system comprises the temperature controller, temperature sensor and the heating tube that connect successively, and heating tube is arranged in media slot, and controls the duty of heating tube by temperature controller, and temperature sensor and heating tube are arranged on the outside of media slot.
Preferably, described gland bonnet adopts organic glass to make, so that the situation of change in observation experiment process medium groove.
Preferably, described transmission shaft is threaded.
Preferably, described media slot adopts the good stainless steel of corrosion stability to make.
Preferably, described upper specimen mounting, upper specimen mounting hold-down nut, lower specimen mounting, lower specimen mounting hold-down nut, L-type support, sample fixation screw bolt and bracket fixing bolt all adopt high strength polyetheretherketone to make, and corrode impact experimental system to avoid parts.
Preferably, described temperature sensor and heating tube shell all adopt stainless steel material to make.
The present invention may be used for sample and periodically stands media impingement, the dry wet alternating environment in simulation waves splash about district, and the cycle of alternation of wetting and drying adjusts by adjusting motor speed; The speed of media impingement can be adjusted by outlet regulating valve, to simulate the wave stroke intensity size that ocean wind regime difference causes; Erosion-the corrosion sample of many samples can be carried out simultaneously, the contrast test of multiple material can be carried out, also can carry out the collimation test of same material; Utilize the conducting ring on the carbon brush on gland bonnet and upper specimen mounting, realize the continuous electrochemical monitoring in sample rotary course; Electrochemical corrosion rate measurement is carried out to full leaching sample, from the long chi lacing film corrosion rate of carrying out erosion-corrosion, takes off the corrosion rate of continuous immersion zone part, the effect of corroding component in erosion-corrosion process can be investigated; Consider the aging action of organic coating under sunlight irradiates, the dry stage of alternation of wetting and drying carries out light aging by ultraviolet lamp tube to sample; Environmental cabinet realizes air exclusion by gland bonnet, and temperature control system is housed, and can realize the controlled of media environment and adjustment, expand the range of application of this test method; Add solid particle in medium, the impact-corrosion test of polyphasic flow can be carried out.
The present invention has following beneficial effect:
Provide a set of material erosion-corrosion experiment research device being applicable to ocean waves splash about district, the factors such as wave stroke speed, impulse period, sand cut, oxygen level, temperature, illumination of can studying are on the impact of material erosion-corrosion behavior, with the failure procedure of waves splash about in accurate analog ocean plot structure, compensate for the deficiency of existing simulation splash zone material erosion-corrosion research device; The present invention adopts the electrochemical in-situ in material During Flooding And Draining Alternating Process to monitor, and clearly can corrode the action rule of component in material erosion-corrosion failure process.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of embodiment of the present invention erosion-corrosion experimental device;
Fig. 2 is sample mounting and clamping system structural representation in the embodiment of the present invention;
Fig. 3 is the vertical view of upper specimen mounting in the embodiment of the present invention.
In figure, 1-base; 2-media slot; 3-gland bonnet; 4-rubber seal; 5-hydraulic lifting frame; 6-pressure release knob; 7-pedal; 8-motor; 9-small belt pulley; 10-belt; 11-big belt pulley; 12-shaft coupling; 13-fixed cross beam; 14-bearing; 15-transmission shaft; 16-U type gland bonnet; The upper specimen mounting of 171-; Specimen mounting under 172-; The upper specimen mounting hold-down nut of 173-; Specimen mounting hold-down nut under 174-; 175-locating slot; 176-L type support; 177-sample fixation screw bolt; 178-bracket fixing bolt; 18-rubber protecting jacket; 19-stirring vane; The short chi sample of 20-; 211-temperature controller; 212-temperature sensor; 213-heating tube; 221-light intensity controller; 222-quartz burner; 223-division board; 231-multi-channel electrochemical workstation; 232-electrode wires; 233-electrode wires seal; 234-electrode suppor; 235-soaks sample entirely; 236-contrast electrode; 237-auxiliary electrode; 2401-carbon brush supports; 2402-first working electrode carbon brush; 2403-second working electrode carbon brush; 2404-the 3rd working electrode carbon brush; 2405-contrast electrode carbon brush; 2406-auxiliary electrode carbon brush; 2407-first working electrode conducting ring; 2408-second working electrode conducting ring; 2409-the 3rd working electrode conducting ring; 2410-contrast electrode conducting ring; 2411-auxiliary electrode conducting ring; 2412-first working electrode; 2413-second working electrode; 2414-the 3rd working electrode; 2415-rotates contrast electrode; 2416-rotates auxiliary electrode; 251-enters pump line road; 252-mortar pump; 253-outlet regulating valve; 254-circulation fluid export pipeline; 255-tensimeter; 256-flowmeter; 257-nozzle; 258-bypass valve; 259-draining valve.
Embodiment
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As Figure 1-3, embodiments provide a kind of simulation waves splash about district's erosion-corrosion experimental device, it is characterized in that, described experimental provision for supporting, comprises jacking system, specimen clamping system, power system, spraying system, ultraviolet lighting ageing system, electrochemical test system and temperature control system with base 1, base 1 is fixed with hydraulic lifting frame 5, by rising or the decline of pedal 7 or pressure release knob 6 hydraulic control crane 5, specimen clamping system and power system hydraulic lifting frame 5 be equipped with, hydraulic lifting frame 5 side is provided with media slot 2, installation for storing corrosive medium and all the other systems is fixed, and specimen clamping system footprint is inner in media slot 2, for ensureing that corrosive medium exempts to be affected by the external environment, be set with gland bonnet 3 above described media slot 2, and by rubber seal 4, the two sealed, gland bonnet 3 central aperture is so that transmission shaft 15 passes through, aperture perimeters is processed with annular groove, not volatile liquid medium is filled in annular groove, transmission shaft 15 is provided with U-shaped gland bonnet 16, U-shaped gland bonnet 16 lower surface to be down in annular groove below medium liquid level, achieve the sealing completely of media slot 2, to reach the object of oxygen content in accurate control medium groove 2, motor 8 in described power system is fixed on the top of crane 5, described motor 8 rotating speed is adjustable, motor 8 output torque is transferred on transmission shaft 15 by small belt pulley 9, belt 10, big belt pulley 11, shaft coupling 12 successively, and then drive the specimen clamping system be fixed on transmission shaft 15 to rotate, described transmission shaft 15 is equipped with bearing 14, and be fixedly connected with hydraulic lifting frame 5 by fixed cross beam 13, to improve the stability of transmission shaft 15, the rubber-coated protective sleeve 18 of outside surface of described transmission shaft 15, can avoid ejection medium to cause erosion damage to it, described specimen clamping system comprises specimen mounting 171, upper specimen mounting hold-down nut 173, lower specimen mounting 172, lower specimen mounting hold-down nut 174, L-type support 176, sample fixation screw bolt 177 and bracket fixing bolt 178, described upper specimen mounting 171 and lower specimen mounting 172 are fixed on transmission shaft 15 respectively by upper specimen mounting hold-down nut 173 and lower specimen mounting hold-down nut 174, described upper specimen mounting 171 and lower specimen mounting 172 are cylindrical, circumferentially be uniformly distributed 12 locating slots 175, each locating slot 175 is all provided with L-type support 176, L-type support 176 is fixed with 9 short chi samples 20 by sample fixation screw bolt 177, be mainly used in erosion-erosion profile, weightless and Analysis on Mechanism and 3 long chi samples are for the electrochemical monitoring in erosion-corrosion process, described L-type support 176 can move along locating slot 175 length direction, namely the radial direction going up specimen mounting 171 or lower specimen mounting 172 moves, for the distance between adjusting sample and nozzle 257, L-type support 176 can be fixed by bracket fixing bolt 178, described electrochemical test system comprises multi-channel electrochemical workstation 231, electrode wires 232, electrode wires seal 233 and corresponding electrode, 3 long chi samples are respectively as the first working electrode 2412, second working electrode 2413 and the 3rd working electrode 2414, the upper end experimental situation of 3 working electrodes is identical with short chi sample 20, lower end is dipped in corrosive medium all the time, shared rotation contrast electrode 2415 is installed at distance from bottom 3 working electrode certain position places of lower specimen mounting 172 and rotates auxiliary electrode 2416, together rotate with 3 working electrodes in experimentation, form rotation electrode system, the different radial position of the upper surface of upper specimen mounting 171 is provided with the first working electrode conducting ring 2407, second working electrode conducting ring 2408 of mutually insulated, the 3rd working electrode conducting ring 2409, contrast electrode conducting ring 2410 and auxiliary electrode conducting ring 2411 successively, by five wires respectively with the first working electrode 2412, second working electrode 2413, the 3rd working electrode 2414, rotate contrast electrode 2415 and rotate auxiliary electrode 2416 and be connected, gland bonnet 3 lower surface is equipped with carbon brush supports 2401, the first working electrode carbon brush 2402, second working electrode carbon brush 2403, the 3rd working electrode carbon brush 2404, contrast electrode carbon brush 2405 and auxiliary electrode carbon brush 2406 carbon brush supports 2401 be equipped with, contact with auxiliary electrode conducting ring 2411 with the first working electrode conducting ring 2407, second working electrode conducting ring 2408, the 3rd working electrode conducting ring 2409, contrast electrode conducting ring 2410 respectively, ensure to carry out electro-chemical test continuously in sample rotary course, first working electrode carbon brush 2402, second working electrode carbon brush 2403, the 3rd working electrode carbon brush 2404, contrast electrode carbon brush 2405 and auxiliary electrode carbon brush 2406 are connected with multi-channel electrochemical workstation 231 by electrode wires 232, adopt electrode wires seal 233 to seal between electrode wires 232 and gland bonnet 3, Electrochemical results in experimentation contains the corrosion information that long chi sample 2411 is dipped in media fraction, the impact caused is corroded in order to deduct territory, long chi sample continuous immersion zone, described electrochemical test system also comprises compensating module, comprise electrode suppor 234, full leaching sample 235, contrast electrode 236 and auxiliary electrode 237, described electrode suppor 234 is fixed on the inwall place of media slot 2, electrode suppor 234 underhung soaks sample 235 entirely, and described contrast electrode 236, auxiliary electrode 237 are identical with above-mentioned rotation electrode system with the relative position entirely soaking sample 235, long chi sample corrosion rate is deducted the corrosion rate of full leaching sample, be the corrosion component of sample under erosion-corrosion synergy, described spraying system comprises mortar pump 252, enter pump line road 251, circulation fluid export pipeline 254, outlet regulating valve 253, bypass valve 258, draining valve 259 and nozzle 257, corrosive medium enters mortar pump 252 along entering pump line road 251, enter in circulation fluid export pipeline 254 through outlet regulating valve 253, with after be injected on the sample of rotation through nozzle 257, tensimeter 255 circulation fluid export pipeline 254 is equipped with, flowmeter 256 and outlet regulating valve 253, the spouting velocity of medium is adjusted by outlet regulating valve 253, enter between pump line road 251 and mortar pump 252 and be provided with bypass valve 258, stirring vane 19 is installed in the end of transmission shaft 15, to improve the degree of uniformity of medium, mortar pump 252 side is provided with draining valve 259, ultraviolet lighting ageing system comprises light intensity controller 221, annular quartz burner 222 and division board 223, the impact of specimen surface coating aging on erosion-corrosive nature can be investigated in experimentation, quartz burner 222 is arranged on the inwall place of media slot 2, for preventing ejection medium, damage is caused to fluorescent tube, at nozzle 257 periphery, division board 223 is installed, quartz burner 222 is connected with light intensity controller 221, can control the illumination condition in experimentation, described temperature control system comprises the temperature controller 211, temperature sensor 212 and the heating tube 213 that connect successively, heating tube 213 is arranged in media slot 2, and the duty of heating tube 213 is controlled by temperature controller 211, temperature sensor 212 and heating tube 213 are arranged on the outside of media slot 2.
Described gland bonnet 3 adopts organic glass to make, so that the situation of change in observation experiment process medium groove 2.
Described transmission shaft 15 is threaded.
Described media slot 2 adopts the good stainless steel of corrosion stability to make.
Described upper specimen mounting 171, upper specimen mounting hold-down nut 173, lower specimen mounting 172, lower specimen mounting hold-down nut 174, L-type support 176, sample fixation screw bolt 177 and bracket fixing bolt 178 all adopt high strength polyetheretherketone to make, and corrode impact experimental system to avoid parts.
Described temperature sensor 212 and heating tube 213 shell all adopt stainless steel material to make.
Embodiment
Adopt relevant device, NaOH is utilized to adjust the 3.5%NaCl solution of pH to 8, at impact velocity 5.4m/s, under frequency of impact 1Hz condition, to the Anti-erosion-corrosion rate of electric arc aluminum coating, zinc face, end aluminum coating, zinc aluminium false alloy coating, aluminium titanium coating over time rule and corrosion electric current density carried out comparative study, resolved erosion failure mechanism.
(1) carbon steel is in erosion pattern mainly etch pit and the streamlined corrosion of simulation splash zone, and etch pit appears at the position that water jet directly impacts, and the streamlined corrosion occurred beyond the angle of shock causes due to biphase gas and liquid flow.Cavitation corrosion plays an important role in splash zone metal erosion failure procedure, and the anti-micro-cutting performance improving material is conducive to the anti-erosion property improving material.
(2) adopt the end zinc face aluminum coating of sealing of hole and zinc aluminium false alloy coating all effectively can improve the anti-erosion property of carbon steel, wherein the effect of zinc aluminium false alloy coating is best.Although aluminium titanium coating has protective effect to matrix, protection effect is relatively poor.
(3) organic coating is within serviceable life, and protection effect is good.Approaching along with serviceable life, coating aging, come off after, protection effect then greatly reduces.Being used alone organic coating is not desirable protection method.
(4) laser cladding layer is in the complete situation of coating, and corrosion stability is fine, and higher to the surface requirements of non-cladding place, cost is also very high.Once coating has breakage to expose steel matrix, then can there is serious bimetallic corrosion, use more difficult in splash zone large-scale promotion.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. simulation waves splash about district's erosion-corrosion experimental device, it is characterized in that, described experimental provision is support with base (1), comprise jacking system, specimen clamping system, power system, spraying system, ultraviolet lighting ageing system, electrochemical test system and temperature control system, base (1) is fixed with hydraulic lifting frame (5), by rising or the decline of pedal (7) or pressure release knob (6) hydraulic control crane (5), (5) are equipped with specimen clamping system and power system with hydraulic lifting frame, hydraulic lifting frame (5) side is provided with media slot (2), specimen clamping system footprint is inner in media slot (2), described media slot (2) top suit gland bonnet (3), and by rubber seal (4), the two is sealed: gland bonnet (3) central aperture is so that transmission shaft (15) passes through, aperture perimeters is processed with annular groove, not volatile liquid medium is filled in annular groove, transmission shaft (15) is provided with U-shaped gland bonnet (16), U-shaped gland bonnet (16) lower surface to be down in annular groove below medium liquid level, achieve the sealing completely of media slot (2), motor (8) in described power system is fixed on the top of crane (5), described motor (8) rotating speed is adjustable, motor (8) output torque is successively by small belt pulley (9), belt (10), big belt pulley (11), shaft coupling (12) is transferred on transmission shaft (15), and then drive the specimen clamping system be fixed on transmission shaft (15) to rotate, bearing (14) described transmission shaft (15) is equipped with, and be fixedly connected with hydraulic lifting frame (5) by fixed cross beam (13), to improve the stability of transmission shaft (15), the rubber-coated protective sleeve of outside surface (18) of described transmission shaft (15), described specimen clamping system comprises specimen mounting (171), upper specimen mounting hold-down nut (173), lower specimen mounting (172), lower specimen mounting hold-down nut (174), L-type support (176), sample fixation screw bolt (177) and bracket fixing bolt (178), described upper specimen mounting (171) and lower specimen mounting (172) are fixed on transmission shaft (15) respectively by upper specimen mounting hold-down nut (173) and lower specimen mounting hold-down nut (174), described upper specimen mounting (171) and lower specimen mounting (172) are for cylindrical, circumferentially be uniformly distributed 12 locating slots (175), each locating slot (175) is all provided with L-type support (176), L-type support (176) is fixed with 9 short chi samples (20) by sample fixation screw bolt (177), (be mainly used in erosion-erosion profile, weightlessness and Analysis on Mechanism) and 3 long chi samples (electrochemical monitoring in erosion-corrosion process) described L-type support (176) can be moved along locating slot (175) length direction, and (radial direction namely going up specimen mounting (171) or lower specimen mounting (172) moves, distance between adjusting sample and nozzle (257)), L-type support (176) can be fixed by bracket fixing bolt (178), described electrochemical test system comprises multi-channel electrochemical workstation (231), electrode wires (232), electrode wires seal (233) and corresponding electrode, 3 long chi samples are respectively as the first working electrode (2412), the second working electrode (2413) and the 3rd working electrode (2414), the upper end experimental situation of 3 working electrodes is identical with short chi sample (20), lower end is dipped in corrosive medium all the time, shared rotation contrast electrode (2415) is installed at distance from bottom 3 working electrode certain position places of lower specimen mounting (172) and rotates auxiliary electrode (2416), together rotate with 3 working electrodes, form rotation electrode system, the different radial position of the upper surface of upper specimen mounting (171) is provided with the first working electrode conducting ring (2407) of mutually insulated, the second working electrode conducting ring (2408), the 3rd working electrode conducting ring (2409), contrast electrode conducting ring (2410) and auxiliary electrode conducting ring (2411) successively, by 5 wires respectively with the first working electrode (2412), the second working electrode (2413), the 3rd working electrode (2414), rotate contrast electrode (2415) and rotate auxiliary electrode (2416) and be connected, gland bonnet (3) lower surface is equipped with carbon brush supports (2401), the first working electrode carbon brush (2402) carbon brush supports (2401) is equipped with, second working electrode carbon brush (2403), 3rd working electrode carbon brush (2404), contrast electrode carbon brush (2405) and auxiliary electrode carbon brush (2406), respectively with the first working electrode conducting ring (2407), second working electrode conducting ring (2408), 3rd working electrode conducting ring (2409), contrast electrode conducting ring (2410) contacts with auxiliary electrode conducting ring (2411), ensure to carry out electro-chemical test continuously in sample rotary course: the first working electrode carbon brush (2402), second working electrode carbon brush (2403), 3rd working electrode carbon brush (2404), contrast electrode carbon brush (2405) and auxiliary electrode carbon brush (2406) are connected to multi-channel electrochemical workstation (231) by electrode wires (232), electrode wires seal (233) is adopted to seal between electrode wires (232) and gland bonnet (3): described electrochemical test system also comprises compensating module, comprise electrode suppor (234), full leaching sample (235), contrast electrode (236) and auxiliary electrode (237), described electrode suppor (234) is fixed on the inwall place of media slot (2), electrode suppor (234) underhung soaks sample (235) entirely, described contrast electrode (236), auxiliary electrode (237) is identical with above-mentioned rotation electrode system with the relative position entirely soaking sample (235), described spraying system comprises mortar pump (252), enter pump line road (251), circulation fluid export pipeline (254), outlet regulating valve (253), bypass valve (258), draining valve (259) and nozzle (257), corrosive medium enters mortar pump (252) along entering pump line road (251), enter in circulation fluid export pipeline (254) through outlet regulating valve (253), with after be injected on the sample of rotation through nozzle (257), tensimeter (255) circulation fluid export pipeline (254) is equipped with, flowmeter (256) and outlet regulating valve (253), enter between pump line road (251) and mortar pump (252) and be provided with bypass valve (258), stirring vane (19) is installed in the end of transmission shaft (15), mortar pump (252) side is provided with draining valve (259), ultraviolet lighting ageing system comprises light intensity controller (221), annular quartz burner (222) and division board (223), quartz burner (222) is arranged on the inwall place of media slot (2), be provided with division board (223) at nozzle (257) periphery, quartz burner (222) is connected with light intensity controller (221), described temperature control system comprises the temperature controller (211), temperature sensor (212) and the heating tube (213) that connect successively, heating tube (213) is arranged in media slot (2), and the duty of heating tube (213) is controlled by temperature controller (211), temperature sensor (212) and heating tube (213) are arranged on the outside of media slot (2).
2. simulation as claimed in claim 1 a kind of waves splash about district's erosion-corrosion experimental device, it is characterized in that, described gland bonnet (3) adopts organic glass to make, so that the situation of change in observation experiment process medium groove (2).
3. simulation as claimed in claim 1 a kind of waves splash about district's erosion-corrosion experimental device, it is characterized in that, (15) are threaded described transmission shaft.
4. simulation as claimed in claim 1 a kind of waves splash about district's erosion-corrosion experimental device, it is characterized in that, described media slot (2) adopts the good stainless steel of corrosion stability to make.
5. simulation as claimed in claim 1 a kind of waves splash about district's erosion-corrosion experimental device, it is characterized in that, described upper specimen mounting (171), upper specimen mounting hold-down nut (173), lower specimen mounting (172), lower specimen mounting hold-down nut (174), L-type support (176), sample fixation screw bolt (177) and bracket fixing bolt (178) all adopt high strength polyetheretherketone to make.
6. erosion-corrosion experimental device in simulation as claimed in claim 1 a kind of waves splash about district, it is characterized in that, described temperature sensor (212) and heating tube (213) shell all adopt stainless steel material to make.
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Cited By (25)
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| CN105158100A (en) * | 2015-09-25 | 2015-12-16 | 沈阳工业大学 | Ring and block friction abrasion testing machine with abrasion gap adjusting function |
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| CN105259067A (en) * | 2015-11-03 | 2016-01-20 | 中国石油大学(北京) | Erosion-corrosion abrasion test table |
| CN105572026A (en) * | 2016-01-20 | 2016-05-11 | 浙江大学 | Sea splash zone environment experimental simulation system |
| CN105572026B (en) * | 2016-01-20 | 2019-03-19 | 浙江大学 | A kind of ocean splash zones environmental test simulation system |
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| CN107884333A (en) * | 2017-11-06 | 2018-04-06 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of device for being used to measure electrochemical parameter under metal cavitation corrosion state |
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