CN205280529U - High -speed thick liquid flows erosion and corrosion test device - Google Patents
High -speed thick liquid flows erosion and corrosion test device Download PDFInfo
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- CN205280529U CN205280529U CN201620039109.0U CN201620039109U CN205280529U CN 205280529 U CN205280529 U CN 205280529U CN 201620039109 U CN201620039109 U CN 201620039109U CN 205280529 U CN205280529 U CN 205280529U
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Abstract
The utility model provides a high -speed thick liquid flows erosion and corrosion test device, includes box and the thick liquid cycle control system who comprises reducing mouth, flange and cavity. In the box, the efflux runner of compriseing a set of test piece passes through the test piece seat to be installed on the flange, and another group's test piece is then installed in the jet exit position through another test piece seat, and adjusting screw can adjust test piece and efflux contained angle, the test piece formation galvano -cautery of can switching on alone to form the high -speed erosion under the submerged jet and corrode, the sight glass is installed and be convenient for observe or become record mutually on the cavity. The utility model discloses a working process does: the reducing mouth is sent the thick liquid into to high pressure sediment stuff pump, makes the thick liquid high -speed through the group of the test piece in the efflux runner, and then washes away another the group's test piece in the box, realize under the same experimental enviroment the same or different materials wear -resistingly lose, the capability test and the comparison of corrosion -resistant and combination, detect the collection of data accessible signal processing device, save etc. The follow -up assay of being convenient for. This high -speed thick liquid flows erosion and corrosion test device can accomplish the parallel erosion of material under the thick liquid environment high -efficiently, the angle freely wash out and submerged jet erosion, cavitation corrosion and electrochemical corrosion etc. Down are multiple single or the wearing and tearing type of combination, and experimental simply reliably easy and simple to handle, complete machine power is little, realizes very much easily that high -speed thick liquid erosion, cavitation corrosion, corruption and combination wear and tear.
Description
Technical field
The utility model relates to a kind of high velocity slurry stream erosion and corrosion testing apparatus, and erosion under the parallel erosion of material when being specifically related to high velocity slurry stream, the free erosion of angle and submerged jet, cavitation corrosion and galvanic corrosion thereof etc. are single or the test set of abrasion that combines.
Background technology
Have in the mechanical means that liquid medium participates at sea transport, petrochemical complex, colliery electric power etc., owing to the solid dielectric in liquid is such as the existence of the grains of sand, salt particle group etc., when solid, liquid interface produces relative movement, the wear behaviours such as erosion, cavitation corrosion and galvanic corrosion thereof may be produced, make equipment failure, bring potential safety hazard or produce huge financial loss; Along with the raising of speed of relative movement, such as the jet-type water surface, naval vessel, ocean surface etc., the erosion resistant of the research of the erosion corrosion mechanism of material and evaluation, improvement material, corrosion resistance nature etc. need dependence test device. Studied and evaluating material performance by software emulation and erosion corrosion test at present, wherein erosion corrosion test mainly contains rotary erosion corrosion device, jet-type erosion corrosion device and pipeline circulation erosion corrosion device etc., and they play great role in research fretting corrosion mechanism and evaluating material performance. Published rotary abrasion device produces high speed of relative movement by test specimen high speed rotating inside slurries, accelerates the erosion corrosion process of test specimen; Jet-type abrasion device is, by spout, slurries free-jetting to test specimen is realized high speed erosion corrosion, or by the combination of rotary and jet-type, produce higher speed of relative movement, but limit due to principle of work, these test methods limitation is relatively big, and uncontrollable and monitoring is actual washes away speed; The devices such as water hole, pipeline circulation erosion corrosion, in-site modeling bulky, and test conditions is difficult to stablize, these all have impact on the progress of the anti-impact erosion of material under high speed state, the research of corrosive nature, evaluation and exploitation erosion resistant, corrosion-resistant contour performance novel material.
Summary of the invention
For the deficiency that domestic and international existing testing apparatus exists, the utility model provides a kind of high velocity slurry stream erosion and corrosion testing apparatus, by serving as jet runner and the test specimen group that can conveniently install and remove, achieve high speed erosion, the test of corrosion and combination thereof, in jet runner, flow field is stablized, the speed in submerged jet that avoids is successively decreased extremely fast shortcoming, thus under the prerequisite only needing less energy expenditure, realize the erosion of higher speed of relative movement, the test specimen group being arranged in casing defines again second time submerged jet and washes away, and between each test specimen and and the part such as casing between mutually insulated, like this, in same experiment condition, multiple controlled speed can be realized, the erosion that strength of current is controlled separately, the test of corrosion and combination thereof, if installing flow-disturbing thing in runner, also can realize the parallel erosion of material under slurry environments, erosion under the free erosion of angle and submerged jet, cavitation corrosion and galvanic corrosion etc. thereof multiple single or combination wear type, improve the operational efficiency of experiment.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of high velocity slurry stream erosion of the present utility model and corrosion testing apparatus, comprise reducing mouth (1), the first test specimen group (2), flange (3), the first test specimen seat (4), visor (5), light current interface (6), the 2nd test specimen group (7), the 2nd test specimen seat (8), set screw (9), cavity (10) and reference electrode (11); Described reducing mouth (1), flange (3), the first test specimen seat (4) order are installed, first test specimen group (2) is arranged on the first test specimen seat (4), visor (5), light current interface (6), the 2nd test specimen seat (8), set screw (9), reference electrode (11) are arranged on cavity (10), 2nd test specimen group (7) is arranged on the 2nd test specimen seat (8), and cavity (10) and flange (3) are connected to form casing.
Preferably, first test specimen seat (4) is installing hollow sectional shape that the first test specimen (2) formed afterwards and size is mated mutually with the outlet of reducing mouth (1), its shape be rectangle and as a section of jet runner, wherein, the first test specimen group (2) has at least 2 test specimens.
Preferably, the first test specimen seat (4) can be arranged between reducing mouth (1) and flange (3).
Preferably, the 2nd test specimen seat (8) is adjacent with the first test specimen seat, and sprays region at jet orifice, it is possible to regulate the angle between itself and slurries emission direction by set screw (9).
Preferably, the jet runner of the hollow section of formation can install flow-disturbing thing, be convenient to form cavitation corrosion source.
Preferably, recycle system slurry direction is reducing mouth (1) direction from big to small, and slurries can be full of casing, forms submerged jet.
Preferably, the first test specimen group (2), the 2nd test specimen group (7) can independently install light current interface (6), and insulate between other part.
Visible, a kind of high velocity slurry stream erosion of the present utility model and corrosion testing apparatus, the test specimen that utilization can conveniently be installed and removed serves as jet runner, flow-disturbing thing can be installed in runner, in same experiment condition, the test of the erosion of the single or differing materials under higher speed of relative movement controlled when realizing slurries, separately strength of current, cavitation corrosion, corrosion and combination abrasion thereof and comparing, test simple and reliable, easy and simple to handle, complete machine power is little, especially easily realizes high speed slurries erosion, cavitation corrosion, corrosion and combination abrasion thereof.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that structure of the present utility model and the recycle system connect.
Fig. 2 is test specimen of the present utility model and installs structural representation.
Fig. 3 is example structure schematic diagram of the present utility model.
In figure:
1 reducing mouth 2 first test specimen 3 flange 4 first test specimen seat 5 visor
6 light current interface 7 the 2nd test specimen 8 the 2nd test specimen seat 9 set screw 10 cavity 11 reference electrode 21 signal processing and control device 22 sensor 23 variable valve
24 high pressure Pulp pump 25 slurries ponds.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, high velocity slurry stream erosion of the present utility model and corrosion testing apparatus, comprise reducing mouth (1), first test specimen group (2), flange (3), first test specimen seat (4), visor (5), light current interface (6), 2nd test specimen group (7), 2nd test specimen seat (8), set screw (9), cavity (10) and reference electrode (11), the slurries recycle system has signal processing and control device (21), sensor (22), variable valve (23), high pressure Pulp pump (24), common slurries circulation power and the related streams gauge such as slurries pond (25), pressure warning unit, the instrument such as thermometer and galvanic corrosion test set.
When slurries from slurries pond (25) sucking-off and are delivered to reducing mouth (1) by after the testing tool such as sensor (22), variable valve (23) by high pressure Pulp pump (24); As shown in Figure 2, owing to reducing mouth (1) cross section is from diminishing greatly, thus making slurry stream accelerate, enter the first worn area, test specimen group place, solid particulate in slurries and salt grain group are because of collision reaction, fluctuate at a high speed in this worn area advance, thus forming the erosion to test specimen, during owing to cutting, collision angle is less, and jet inlet is that long narrow mouth (is highly less than 8mm, width is greater than 20mm), thus its collision is close to parallel erosion; After particle overflows the first worn area, test specimen group place, namely enter the 2nd worn area, test specimen group place adjacent with the first test specimen group, although to flood in fluid particle speed decline very fast, but still the 2nd test specimen group can be formed erosion, afterwards, slurry flows back to and flow to slurries pond (25); Test specimen can power up separately, therefore can complete the independent erosion of test specimen, the test of erosion corrosion combination under same testing circumstance; The jet runner of the first test specimen group composition installs turbulent, the test of erosion, cavitation corrosion and corrosion and combination thereof can be realized again; When selecting different material for test, it is possible to realize the erosion resistant of differing materials under same testing circumstance, corrosion compares and evaluate.
If jet orifice cross section is S, recording by flow is Q, then the erosion speed of the first test specimen groupvCan represent and be:v=Q/S, therefore can accurately determine erosion speed; By the visor (5) on cavity (10), particle running orbit can be observed and measure the distribution of the erosion speed in the 2nd test specimen district and erosion speed, particle trajectories etc., the test specimen being convenient to mounting or dismounting facilitates timing sampling, carry out the researchs such as surface polishing scratch, weight loss, surface microscopic observation, provide experimental data for analyzing Erosion-corrosion wear mechanism.
As shown in Figure 3, in an embodiment, being provided with length �� wide �� height is 50 �� 24 �� 5(unit mm) jet orifice, turbulent is not set, by modeling, grid division, the relevant flow field of numerical evaluation in fluid analysis software, calculation result shows, substantially even in the first test specimen group region pressure distribution, taper off distribution, and velocity distribution is substantially even, and pressure and speed are not suddenlyd change, therefore, the test specimen of the first test specimen group can obtain substantially identical washing away; In the 2nd test specimen group region, owing to being submerged in slurries, pressure and Particle Behavior speed reduce rapidly, and the 2nd test specimen group forms gradient abrasion, can provide more fully experimental data to the abrasion under detection friction-motion speed and endurance check like this.
Although preferred embodiment of the present utility model being described in detail and illustrates, but the utility model being not limited thereto. It should be appreciated that the technician of this area can carry out numerous modifications and variations when not deviating from spirit of the present utility model and principle, and do not depart from the protection domain of the present utility model that it is limited by claim book.
Claims (7)
1. the erosion of high velocity slurry stream and a corrosion testing apparatus, comprising: reducing mouth (1), the first test specimen group (2), flange (3), the first test specimen seat (4), visor (5), light current interface (6), the 2nd test specimen group (7), the 2nd test specimen seat (8), set screw (9), cavity (10) and reference electrode (11); Described reducing mouth (1), flange (3), the first test specimen seat (4) order are installed, first test specimen group (2) is arranged on the first test specimen seat (4), visor (5), light current interface (6), the 2nd test specimen seat (8), set screw (9), reference electrode (11) are arranged on cavity (10), 2nd test specimen group (7) is arranged on the 2nd test specimen seat (8), and cavity (10) and flange (3) are connected to form casing.
2. a kind of high velocity slurry stream erosion according to claim 1 and corrosion testing apparatus, it is characterized in that: the first test specimen seat (4) is installing hollow sectional shape that the first test specimen group (2) formed afterwards and size is mated mutually with the outlet of reducing mouth (1), its shape is rectangle, and as jet runner one section, wherein, the first test specimen group (2) has at least 2 test specimens.
3. a kind of high velocity slurry stream erosion according to claim 1 and corrosion testing apparatus, it is characterised in that: the first test specimen seat (4) can be arranged between reducing mouth (1) and flange (3).
4. a kind of high velocity slurry stream erosion according to claim 1 and corrosion testing apparatus, it is characterized in that: the 2nd test specimen seat (8) is adjacent with the first test specimen seat, and spray region at jet orifice, it is possible to regulate the angle between itself and slurries emission direction by set screw (9).
5. a kind of high velocity slurry stream erosion according to claim 2 and corrosion testing apparatus, it is characterised in that: the jet runner of the hollow section of formation can install flow-disturbing thing, it is convenient to form cavitation corrosion source.
6. a kind of high velocity slurry stream erosion according to the arbitrary item of claim 1-5 and corrosion testing apparatus, it is characterised in that: recycle system slurry direction is reducing mouth (1) direction from big to small, and slurries can be full of casing, forms submerged jet.
7. a kind of high velocity slurry stream erosion according to claim 1 and corrosion testing apparatus, it is characterized in that: the first test specimen group (2), the 2nd test specimen group (7) can independently install light current interface (6), and insulate between other part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620039109.0U CN205280529U (en) | 2016-01-16 | 2016-01-16 | High -speed thick liquid flows erosion and corrosion test device |
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| CN201620039109.0U CN205280529U (en) | 2016-01-16 | 2016-01-16 | High -speed thick liquid flows erosion and corrosion test device |
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| CN205280529U true CN205280529U (en) | 2016-06-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950136A (en) * | 2017-03-22 | 2017-07-14 | 南京航空航天大学 | A kind of fast sand grains erosion test platform of continuous ultrasound and test method |
| CN106979898A (en) * | 2016-01-16 | 2017-07-25 | 长沙学院 | The erosion of high velocity slurry stream and corrosion testing apparatus |
| CN111751237A (en) * | 2019-03-26 | 2020-10-09 | 中国矿业大学 | Jet flow experimental device for material surface damage characterization under erosion-cavitation erosion coupling |
-
2016
- 2016-01-16 CN CN201620039109.0U patent/CN205280529U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979898A (en) * | 2016-01-16 | 2017-07-25 | 长沙学院 | The erosion of high velocity slurry stream and corrosion testing apparatus |
| CN106979898B (en) * | 2016-01-16 | 2023-05-09 | 长沙学院 | High-speed slurry erosion and corrosion test device |
| CN106950136A (en) * | 2017-03-22 | 2017-07-14 | 南京航空航天大学 | A kind of fast sand grains erosion test platform of continuous ultrasound and test method |
| CN106950136B (en) * | 2017-03-22 | 2019-06-28 | 南京航空航天大学 | A kind of continuous ultrasound speed sand grains erosion test platform and test method |
| CN111751237A (en) * | 2019-03-26 | 2020-10-09 | 中国矿业大学 | Jet flow experimental device for material surface damage characterization under erosion-cavitation erosion coupling |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20170116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |