CN101382477B - Jetting type liquid-solid double-phase scouring corrosion experiment apparatus - Google Patents
Jetting type liquid-solid double-phase scouring corrosion experiment apparatus Download PDFInfo
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- CN101382477B CN101382477B CN2007100127089A CN200710012708A CN101382477B CN 101382477 B CN101382477 B CN 101382477B CN 2007100127089 A CN2007100127089 A CN 2007100127089A CN 200710012708 A CN200710012708 A CN 200710012708A CN 101382477 B CN101382477 B CN 101382477B
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- 238000005260 corrosion Methods 0.000 title claims abstract description 36
- 239000007787 solid Substances 0.000 title claims abstract description 26
- 230000007797 corrosion Effects 0.000 title claims description 32
- 238000002474 experimental method Methods 0.000 title claims description 22
- 238000009991 scouring Methods 0.000 title claims description 22
- 238000000840 electrochemical analysis Methods 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000012071 phase Substances 0.000 abstract description 15
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 4
- 238000002848 electrochemical method Methods 0.000 abstract description 3
- 239000007790 solid phase Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 14
- 230000003628 erosive effect Effects 0.000 description 9
- 230000003028 elevating effect Effects 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to an erosion-corrosion device, in particular to a jet type liquid-solid dual-phase fluid erosion-corrosion experimental device which solves the problems in the prior art that the adjustment of an attack angle is relatively difficult and the experimental period is long as well as the problem of real-time measurement of electrochemical parameters and the like. The experimental apparatus is provided with an ejector pump, a nozzle, a nozzle chamber and an electrochemical test system, and adopts the cam pump of a motor drive provided with a transducer as the ejector pump, wherein, an attack angle adjustment device used for adjusting the attack angle of samples is arranged in the nozzle chamber, the pipeline where the nozzle locates is connected with a jet distance adjustment device. The device adopts the cam pump as the ejector pump to realize the smooth conveying of media containing bigger solid phase particles, utilizes the cam pump of the motor drive provided with the transducer to control the flow speed; and the nozzle chamber is provided with the samples which can control the attack angle and the jet distance, the samples can fulfill the electrochemical measurement. The device can control the flow speed, attack angle and the temperature of the media, and fulfill the electrochemical measurement.
Description
Technical field
The present invention relates to the erosion corrosion device, specifically a kind of jetting type liquid-solid double-phase scouring corrosion experiment apparatus.
Background technology
In the prior art, rotary, the fluid-guiding type experimental provision of the many uses of erosion corrosion, wherein revolver make liquid-solid two-phase produce wearing and tearing and corrosion, but it is relatively more difficult to adjust the angle of attack based on sample that rotates on specimen holder and static liquid generation tangential force structure; And the fluid-guiding type device is based on working fluid/static pipeline type structure, and the control of the angle of attack also can't resolve, and experimental period is long.On erosion corrosion mechanism, erosion corrosion speed is different with the variation of the angle of attack, often can reflect different material erosion corrosion mechanism (ductility or fragility).Gu for gas/erosion, the angle of attack is wanted much less to the work that liquid/solid double-phase scouring corrosion influences the aspect, one of its reason is exactly to lack effective injecting type experimental provision.Along with the expansion of erosion corrosion research field, research range is also often listed in the erosion corrosion under the different temperatures in.In addition, the real-time measurement of implementing electrochemical parameter under high speed erosion corrosion condition also is to need the major issue that solves in many systems.
Summary of the invention
The purpose of this invention is to provide a kind of jetting type liquid-solid double-phase scouring corrosion experiment apparatus, the adjustment angle of attack is relatively more difficult in the solution prior art, experimental period is long and the problems such as real-time measurement of electrochemical parameter, flow velocity, the angle of attack, medium temperature can be controlled, real-time electrochemical parameter measurement can be realized.
Technical scheme of the present invention is:
A kind of jetting type liquid-solid double-phase scouring corrosion experiment apparatus, have jetting pump, nozzle, jet chamber, electro-chemical test system, employing is equipped with the motor-driven cam pump of frequency converter as jetting pump, be provided with the angle of attack adjusting gear of regulating the sample angle of attack in the jet chamber, the pipeline at nozzle place is connected with the jet length regulating device.
The pipeline that described jetting type liquid-solid double-phase scouring corrosion experiment apparatus, jetting pump lead to the jet chamber is provided with electromagnetic flowmeter.
Described jetting type liquid-solid double-phase scouring corrosion experiment apparatus, jet chamber's sidewall is furnished with run-down pipe.
Described jetting type liquid-solid double-phase scouring corrosion experiment apparatus, the bottom, jet chamber is connected to slurry tank.
Described jetting type liquid-solid double-phase scouring corrosion experiment apparatus, slurry tank are equipped with cooling device and well heater.
Described jetting type liquid-solid double-phase scouring corrosion experiment apparatus, this device are provided with stirring, the discharge pump of stirring and the unification of discharge two pumps, and stirring, discharge delivery side of pump are divided into two-way, and one the tunnel is connected to slurry tank, and the outside is led on another road.
Described jetting type liquid-solid double-phase scouring corrosion experiment apparatus, jet length regulating device are feed screw apparatus.
Described jetting type liquid-solid double-phase scouring corrosion experiment apparatus, angle of attack adjusting gear is provided with the specimen mounting of placing working electrode, specimen mounting is connected with fixed bar, and fixed bar is furnished with in a side of outside, jet chamber can read pointer and the protractor that sprays the angle of attack at any time, can read the injection angle of attack at any time.
The present invention has following advantage:
1. the present invention has selected for use corrosion-resistant cam pump as jetting pump, controls flow velocity by frequency converter, has reduced the pulsation problem of high-pressure plunger pump commonly used, can carry out the erosion-corrosion experiment under the harsh ambient conditions such as high solids and corrosivity.The use of cam pump can make the test of the system that contains big solid phase particles realize.
2. have the angle of attack and jet length and adjust function.Sample of the present invention can be used to adjust the injected angle of sample by the control of angle of attack adjusting gear; Adopt small-sized spindle arrangement to control jet length.
3. has the may command flow velocity, the characteristics that experimental period is short.The present invention adjusts the cam pump rotating speed of motor by frequency converter and controls flow velocity, has realized the accurate control of flow velocity.
4. adopted in-line pump to stir, realized the unification of stirring and discharge two pumps, and this alr mode more helped the suspension of solid phase particles, mixing effect is very suitable for the liquid-solid double-phase scouring corrosion system.
5. the present invention is furnished with run-down pipe at jet chamber's sidepiece, and a draining valve is installed in the bottom, regulates run-down pipe and draining valve and can realize flush type (Submerged) or two kinds of injection conditions of non-embedded type.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the angle of attack and jet length adjusting gear synoptic diagram.
Among the figure, 1. switch board; 2. frequency converter; 3. motor; 4. cam pump; 5. stir, discharge pump; 6. ball valve I; 7. ball valve II; 8. ball valve III; 9. jet chamber; 10. thermopair I; 11. thermopair II; 12. electromagnetic flowmeter; 13. elevating screw; 14. angle of attack adjusting gear; 15. nozzle; 16. contrast electrode; 17. auxiliary electrode; 18. working electrode (sample); 19. acidometer probe; 20. run-down pipe; 21. slurry tank; 22. cooling water pipe; 23. well heater; 24. electrochemical workstation; 25. framework; 26. specimen mounting; 27. pointer I; 28. protractor; 29. nut; 30. spacing flange; 31. pointer II; 32. rule; 33 fixed bars.
Embodiment
Below in conjunction with accompanying drawing the structure of the present invention and the course of work are described in further detail.
As shown in Figure 1, the present invention is made up of switch board 1, frequency converter 2, motor 3, cam pump 4, stirring, discharge pump 5, ball valve I6, ball valve II7, ball valve III8, jet chamber 9, thermopair I10, thermopair II11, electromagnetic flowmeter 12, elevating screw 13, angle of attack adjusting gear 14, nozzle 15, contrast electrode 16, auxiliary electrode 17, working electrode (sample) 18, acidometer probe 19, run-down pipe 20, slurry tank 21, cooling water pipe 22, well heater 23, electrochemical workstation 24, framework 25 and panel etc.Employing is equipped with cam pump 4 that the motor 3 of frequency converter 2 drives as jetting pump, is provided with electromagnetic flowmeter 12 in the pipeline, and electromagnetic flowmeter 12 shows the flow velocitys in the pipelines in real time; Cam pump 4 has many advantages in the conveying that contains solid particle medium; Nozzle 15 is installed on 9 li of jet chambers, and jet length regulating device (elevating screw 13) is housed, 9 li also are equipped with angle of attack adjusting gear 14 in the jet chamber, angle of attack adjusting gear 14 is adjusted angle of attack angle (see figure 2), sample can be used to adjust the injected angle of sample by the control of angle of attack adjusting gear; Working electrode (sample) 18 bottoms connect lead, and contrast electrode 16, auxiliary electrode 17, working electrode (sample) 18 are connected to electrochemical workstation 24 by lead, measure to realize electrochemical parameter.Jet chamber's 9 sidewalls are equipped with run-down pipe 20, and draining ball valve III8 is equipped with 9 bottoms in the pipeline that leads to slurry tank 21 in the jet chamber.The present invention also is provided with stirring, discharge pump 5, and the outlet of stirring, discharge pump 5 is divided into two-way, and ball valve I6, ball valve II7 control is arranged respectively, returns the stirring that realizes when a road of slurry tank 21 is opened material, leads to the discharging that realizes waste material when open a road of outside.In addition, slurry tank 21 bottoms are provided with well heater 23, are respectively equipped with thermopair I10, thermopair II11 in jet chamber 9 and the slurry tank 21.
Among the present invention, electrochemical workstation is Parstat 2273 type electrochemical workstations; Electromagnetic Flow is counted DN25 type intelligent electromagnetic flowmeter; Switch board 1 comprises electric current and voltage indication, temperature control and measurement, cam pump and stirring, the switch of discharge pump, frequency converter panel.
As shown in Figure 2, among the present invention, angle of attack adjusting gear 14 is to realize by the fixed bar 33 of adjusting specimen mounting 26, one side of fixed bar 33 9 outsides in the jet chamber is furnished with pointer I27 and protractor 28, can read the injection angle of attack at any time, can adjust the angle of attack to the angle that needs by rotation fixed bar 33, the setting range of the angle of attack is at the 5-90 degree.In addition, one end of elevating screw 13 is fixed in the jet chamber 9 by spacing flange 30, be fixed on the pipeline that links to each other with nozzle 15 by the nut 29 that is threaded with elevating screw 13, adjust the distance of nozzle 15 and working electrode (sample) 18 by rotation and lifting leading screw 13, be jet length, can read with rule 32 by pointer II 31.
The course of work of the present invention is as follows:
Installment work electrode (sample) 18 connects the three-electrode system that is used for electrochemical measurement; Adjust the angle of attack and jet length according to running parameter, open cooling water pipe 22 or well heater 23; Open stirring, discharge pump 5, make medium be in uniform state; Opening cam pump 4 is adjusted motor speed with frequency converter 2, thereby is reached designed flow; Regulate the liquid level of draining ball valve III8 and run-down pipe 20 control jet chambers 9.Adopt the present invention can control flow velocity, the angle of attack, medium temperature, carry out erosion-corrosion experiment, can realize real-time electrochemical parameter measurement.
Claims (8)
1. jetting type liquid-solid double-phase scouring corrosion experiment apparatus, have jetting pump, nozzle, jet chamber, electro-chemical test system, it is characterized in that: adopt and the motor-driven cam pump of frequency converter is housed as jetting pump, be provided with the angle of attack adjusting gear of regulating the sample angle of attack in the jet chamber, the pipeline at nozzle place is connected with the jet length regulating device.
2. according to the described jetting type liquid-solid double-phase scouring corrosion experiment apparatus of claim 1, it is characterized in that: the pipeline that jetting pump leads to the jet chamber is provided with electromagnetic flowmeter.
3. according to the described jetting type liquid-solid double-phase scouring corrosion experiment apparatus of claim 1, it is characterized in that: jet chamber's sidewall is furnished with run-down pipe.
4. according to the described jetting type liquid-solid double-phase scouring corrosion experiment apparatus of claim 1, it is characterized in that: the bottom, jet chamber is connected to slurry tank.
5. according to the described jetting type liquid-solid double-phase scouring corrosion experiment apparatus of claim 4, it is characterized in that: slurry tank is equipped with cooling device and well heater.
6. according to the described jetting type liquid-solid double-phase scouring corrosion experiment apparatus of claim 4, it is characterized in that: this device is provided with stirring, the discharge pump of stirring and the unification of discharge two pumps, stirring, discharge delivery side of pump are divided into two-way, and one the tunnel is connected to slurry tank, and the outside is led on another road.
7. according to the described jetting type liquid-solid double-phase scouring corrosion experiment apparatus of claim 1, it is characterized in that: the jet length regulating device is a feed screw apparatus.
8. according to the described jetting type liquid-solid double-phase scouring corrosion experiment apparatus of claim 1, it is characterized in that: angle of attack adjusting gear is provided with the specimen mounting of placing working electrode, specimen mounting is connected with fixed bar, and fixed bar is furnished with in a side of outside, jet chamber can read pointer and the protractor that sprays the angle of attack at any time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100127089A CN101382477B (en) | 2007-09-05 | 2007-09-05 | Jetting type liquid-solid double-phase scouring corrosion experiment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100127089A CN101382477B (en) | 2007-09-05 | 2007-09-05 | Jetting type liquid-solid double-phase scouring corrosion experiment apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101382477A CN101382477A (en) | 2009-03-11 |
| CN101382477B true CN101382477B (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100127089A Expired - Fee Related CN101382477B (en) | 2007-09-05 | 2007-09-05 | Jetting type liquid-solid double-phase scouring corrosion experiment apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181193A (en) * | 2018-03-23 | 2018-06-19 | 常州大学 | Jetting type erosion corrosion test device |
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| CN102288503B (en) * | 2011-07-12 | 2013-08-14 | 中国石油大学(北京) | Testing machine for simulating erosion of high-pressure manifold |
| CN102288506B (en) * | 2011-09-02 | 2013-03-13 | 杭州富如德科技有限公司 | Supersonic gas-solid two-phase flow erosive wear test device |
| CN102589996B (en) * | 2012-01-14 | 2014-05-28 | 哈尔滨工程大学 | Multi-extreme-working-condition erosion test device applicable to multi-field coupling condition |
| CN102980823B (en) * | 2012-12-25 | 2014-08-13 | 北京科技大学 | Loop test device for imitating gas phase erosion corrosion of natural gas |
| CN103234894B (en) * | 2013-04-03 | 2015-01-21 | 中国石油大学(华东) | Multiphase flow erosion local corrosion testing apparatus |
| CN103335939B (en) * | 2013-06-20 | 2015-08-26 | 中国科学院金属研究所 | Pipe flow type inner wall erosion corrosion test device |
| CN104792639B (en) * | 2015-04-08 | 2017-09-26 | 浙江理工大学 | The testing stand of supersonic gas fixed double phase flow high-temperature erosion abrasion experimental rig |
| CN106644920A (en) * | 2017-01-14 | 2017-05-10 | 常州大学 | Online detection experimental device for simulating erosion corrosion of elbows with different dip angles |
| CN107063907A (en) * | 2017-03-31 | 2017-08-18 | 浙江理工大学 | A kind of experimental rig for being used to measure the abrasion of solid-liquid two-phase |
| CN106841025B (en) * | 2017-04-09 | 2023-09-29 | 中国人民解放军海军航空工程学院青岛校区 | Coating performance detection device for corrosive medium |
| CN107101903A (en) * | 2017-06-02 | 2017-08-29 | 常州大学 | HTHP multiphase flow injecting type erosion-corrosion experiment device |
| CN107202740B (en) * | 2017-07-18 | 2023-02-10 | 西北工业大学 | Test device for simulating scouring fatigue |
| CN108303334B (en) * | 2017-12-22 | 2020-08-28 | 江苏大学 | Device and method for testing abrasion resistance of material |
| CN109490124B (en) * | 2018-11-20 | 2023-12-12 | 浙江理工大学 | Intelligent circulating flow type erosion corrosion test system and test method |
| CN110455706A (en) * | 2019-09-09 | 2019-11-15 | 中国科学院金属研究所 | It is a kind of to wash away in environment the experimental provision and test method for simulating stainless steel spot corrosion |
| CN112577840A (en) * | 2020-11-08 | 2021-03-30 | 扬州大学 | Jet type solid-liquid dual-phase flow erosion wear test device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5377533A (en) * | 1992-07-20 | 1995-01-03 | Shaw; Larry | Method of taking erosion/corrosion measurements |
| CN2459652Y (en) * | 2000-12-21 | 2001-11-14 | 中国科学院金属研究所 | Jetting type liquid-solid double-phase scouring corrosion experiment apparatus |
| CN201066333Y (en) * | 2007-09-05 | 2008-05-28 | 中国科学院金属研究所 | Spraying liquid and solid dual-phase current washing erosion testing device |
-
2007
- 2007-09-05 CN CN2007100127089A patent/CN101382477B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5377533A (en) * | 1992-07-20 | 1995-01-03 | Shaw; Larry | Method of taking erosion/corrosion measurements |
| CN2459652Y (en) * | 2000-12-21 | 2001-11-14 | 中国科学院金属研究所 | Jetting type liquid-solid double-phase scouring corrosion experiment apparatus |
| CN201066333Y (en) * | 2007-09-05 | 2008-05-28 | 中国科学院金属研究所 | Spraying liquid and solid dual-phase current washing erosion testing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181193A (en) * | 2018-03-23 | 2018-06-19 | 常州大学 | Jetting type erosion corrosion test device |
| CN108181193B (en) * | 2018-03-23 | 2020-05-26 | 常州大学 | Jet type erosion corrosion test device |
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| CN101382477A (en) | 2009-03-11 |
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