CN201917511U - Rotary experimental device for simulating erosion corrosion of inner wall of pipeline - Google Patents
Rotary experimental device for simulating erosion corrosion of inner wall of pipeline Download PDFInfo
- Publication number
- CN201917511U CN201917511U CN201020678306XU CN201020678306U CN201917511U CN 201917511 U CN201917511 U CN 201917511U CN 201020678306X U CN201020678306X U CN 201020678306XU CN 201020678306 U CN201020678306 U CN 201020678306U CN 201917511 U CN201917511 U CN 201917511U
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- China
- Prior art keywords
- slurry tank
- walls
- duct
- rotation axis
- erosion corrosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005260 corrosion Methods 0.000 title claims abstract description 48
- 230000003628 erosive Effects 0.000 title claims abstract description 38
- 239000002002 slurry Substances 0.000 claims abstract description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- 238000000840 electrochemical analysis Methods 0.000 claims abstract description 7
- 238000004088 simulation Methods 0.000 claims description 20
- 239000011780 sodium chloride Substances 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L Mercury(I) chloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 claims description 8
- 235000012970 cakes Nutrition 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 230000001105 regulatory Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000004580 weight loss Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 235000015108 pies Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static Effects 0.000 description 1
Abstract
The utility model relates to the field of erosion-corrosion devices, specifically, a rotary experimental device for simulating the erosion corrosion of the inner wall of a pipeline, which solves the problem that the existing rotary erosion-corrosion experimental device cannot well simulate the erosion corrosion of the inner wall of the pipeline, while a pipe-flow type erosion-corrosion experimental device has high construction cost. The device is provided with a rotary shaft, a slurry tank, a sample clamp and an annular sample, wherein the upper part of the rotary shaft is provided with a carbon brush; the carbon brush is connected with electrochemical test equipment; the rotary shaft is connected with the output terminal of a motor with a frequency converter; the lower part of the rotary shaft extends into the slurry tank and above slurry; the rotary shaft is connected with the sample clamp through an adapter; and the annular sample is arranged on the sample clamp. The utility model has the advantages of existing rotary and pipe-flow type erosion-corrosion experimental devices, studies the axial erosion-corrosion behavior of the inner wall of a pipe in the rotating conditions, controls the flow rate, medium composition and temperature, and achieves real-time electrochemical parameter measurement and weight loss measurement simultaneously.
Description
Technical field
The utility model relates to erosion corrosion device field, specifically a kind of rotary experimental provision of simulating the inner-walls of duct erosion corrosion.
Background technology
In the prior art, erosion corrosion uses rotary, fluid-guiding type, injecting type experimental provision, wherein revolver is based on sample that rotates on specimen holder and static liquid generation tangential force, make liquid-solid two-phase produce wearing and tearing and corrosion or opposite, but the sample of rotary employing mostly is pie or cylindric greatly, and the two all can not simulate the axial erosion corrosion behavior of fluid along inner-walls of duct well; And the fluid-guiding type device can be simulated the axial erosion corrosion behavior of fluid along inner-walls of duct preferably based on liquid flow/pipeline state type structure, but traditional fluid-guiding type device volume is huge, builds the operating cost height, system's instability, and experimental period is long; The injecting type experimental provision produces the structure that the flow at high speed medium impacts sample based on ebullator and nozzle, the flow velocity that impacts liquid stream can be accurately controlled, the angle of attack that washes away can be changed, but can not simulate actual working conditions well, scouring intensity is bigger than actual conditions, with the actual erosion corrosion condition of pump, pipeline a certain distance is arranged.
The utility model content
The purpose of this utility model provides a kind of rotary experimental provision of simulating the inner-walls of duct erosion corrosion, solve the erosion corrosion that existing rotary erosion-corrosion experiment device can not fine simulation inner-walls of duct, and the high problem of fluid-guiding type erosion-corrosion experiment device construction cost.
The technical solution of the utility model is:
A kind of rotary experimental provision of simulating the inner-walls of duct erosion corrosion, this device is provided with rotation axis, slurry tank, specimen holder, ring specimen, be provided with carbon brush on rotation axis top, carbon brush is connected with electro-chemical test equipment, rotation axis links to each other with the motor output end that frequency converter is housed, the bottom of rotation axis extends slip top in the slurry tank, connects by adapter between rotation axis and the specimen holder, and ring specimen is installed on the specimen holder.
The rotary experimental provision of described simulation inner-walls of duct erosion corrosion is provided with copper nut and is connected with the rotation axis end in adapter inside.
The rotary experimental provision of described simulation inner-walls of duct erosion corrosion, the both sides of adapter connect specimen holder respectively, sample is connected with an end of stainless steel bar by copper ball, the spring that is provided with in the through hole on the specimen holder, carry out the output of electrochemical signals, the other end of stainless steel bar extends in the adapter.
The rotary experimental provision of described simulation inner-walls of duct erosion corrosion, the adapter bottom is connected to paddle wheel.
The rotary experimental provision of described simulation inner-walls of duct erosion corrosion, the slurry tank top connects the slurry tank loam cake, covers on the slurry tank and plugs rotation axis, auxiliary electrode and salt bridge respectively; Auxiliary electrode inserts in the slip of slurry tank, and mercurous chloride electrode is connected to the slip of slurry tank by salt bridge, and an end of salt bridge extends in the slip of slurry tank, and mercurous chloride electrode inserts in the other end of salt bridge.
The rotary experimental provision of described simulation inner-walls of duct erosion corrosion is provided with baffle plate at the slurry tank inwall place in the auxiliary electrode and the salt bridge outside.
The rotary experimental provision of described simulation inner-walls of duct erosion corrosion is provided with splash-back in the rotation axis bottom.
The rotary experimental provision of described simulation inner-walls of duct erosion corrosion, the rotation axis outside is provided with the teflon cover.
Be equipped with well heater and temperature regulating device in the rotary experimental provision of described simulation inner-walls of duct erosion corrosion, slurry tank.
The rotary experimental provision of described simulation inner-walls of duct erosion corrosion, specimen holder adopts the circular ring pipe structure.
The utlity model has following advantage:
1. the utility model has been selected the motor that frequency converter is housed for use, adopts the motor-driven rotation axis that frequency converter is housed as power, controls flow velocity by frequency converter.
2. the utility model sample adopts ring specimen, is different from traditional pie sample, can simulate the erosion corrosion behavior under the actual pipe stream condition better.
3. the utility model merges the advantage of existing rotary and fluid-guiding type erosion-corrosion experiment device, realizes studying in rotating condition the axial erosion corrosion behavior of inner-walls of duct.
4. the utility model adopts modular design, and each part of device all can be dismantled easily, make up and transform.
5. the utility model can be realized the erosion corrosion research of different tube diameters and wall thickness sample according to the specimen holder of different caliber design different sizes.
In a word, the utility model adopts newly-designed full pattern method of clamping, concentrated the advantage of existing rotary and fluid-guiding type erosion-corrosion experiment device, realize studying in rotating condition the axial erosion corrosion behavior of inner-walls of duct, conditions such as flow velocity, medium composition, temperature, silt content, certain saturated gas can be controlled, real-time electrochemical parameter measurement and weightless measurement can be realized simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1. rotation axis; 2. teflon cover; 3. slurry tank loam cake; 4. splash-back; 5. adapter; 6. auxiliary electrode (to electrode); 7. slurry tank; 8. specimen holder (platter); 9. baffle plate; 10. carbon brush; 11. mercurous chloride electrode (contrast electrode); 12. salt bridge; 13. copper nut; 14. paddle wheel; 15. sample; 16. spring; 17. copper ball; 18. well heater; 19. thermopair; 20 stainless steel bars.
Embodiment
As shown in Figure 1, the rotary experimental provision of the utility model simulation inner-walls of duct erosion corrosion, has motor, slurry tank, electro-chemical test equipment, employing is equipped with the motor-driven rotation axis 1 of frequency converter as power, further drive specimen holder 8 and ring specimen 15 and in the slip of slurry tank, rotate, carry out data test by the electro-chemical test system.This device mainly comprises: rotation axis 1, teflon cover 2, slurry tank loam cake 3, splash-back 4, adapter 5, auxiliary electrode 6, slurry tank 7, specimen holder 8, baffle plate 9, carbon brush 10, mercurous chloride electrode 11, salt bridge 12, copper nut 13, paddle wheel 14, ring specimen 15, spring 16, copper ball 17, well heater 18, thermopair 19, stainless steel bar 20 etc., and concrete structure is as follows:
Slurry tank 7 tops connect slurry tank loam cake 3 by bolt, plug rotation axis 1, auxiliary electrode 6 and salt bridge 12 on the slurry tank loam cake 3 respectively; Auxiliary electrode 6 inserts in the slip of slurry tank 7, and mercurous chloride electrode 11 is connected to the slip of slurry tank 7 by salt bridge 12, and an end of salt bridge 12 extends in the slip of slurry tank 7, and mercurous chloride electrode 11 inserts in the other end of salt bridge 12.
Slurry tank 7 inwall places in the auxiliary electrode 6 and salt bridge 12 outsides are provided with baffle plate 9, and its effect is to slow down the speed of medium with the sample rotation, improves the relative velocity of sample and medium.
Be provided with carbon brush 10 on rotation axis 1 top, carbon brush 10 is connected with electro-chemical test equipment, and rotation axis 1 links to each other with the motor output end that frequency converter is housed.The bottom of rotation axis 1 extends slip top in the slurry tank 7, is provided with splash-back 4 in rotation axis 1 bottom, and rotation axis 1 outside is provided with teflon cover 2, and its effect is to make the not direct contact medium of metal rotation axis.
Connect by adapter 5 between rotation axis 1 and the specimen holder 8 (platter), the angle of inclination of adapter can change according to actual needs, is provided with copper nut 13 in adapter 5 inside and is connected with rotation axis 1 end, and adapter 5 bottoms are connected to paddle wheel 14.The both sides of adapter 5 connect specimen holder 8 respectively, ring specimen 15 is installed on the specimen holder 8, sample 15 is connected with an end of stainless steel bar 20 by copper ball 17, the spring 16 that is provided with in the through hole on the specimen holder 8, carry out the output of electrochemical signals, the other end of stainless steel bar 20 extends in the adapter 5.
In addition, be equipped with well heater 18 and temperature regulating device (thermopair 19) in the slurry tank 7.
In the utility model, specimen holder 8 adopts the circular ring pipe structure, and the method for clamping of circular ring pipe adopts the anchor clamps of brand-new design, and the anchor clamps size can change according to actual needs.
During work, under the driving of rotation axis 1, drive specimen holder 8, ring specimen 15 and paddle wheel 14 rotations by adapter 5.Stainless steel bar 20 is with the carbon brush 10 of electrical signal transfer to rotation axis 1, further carrying out real-time electrochemical parameter by electro-chemical test equipment measures and weightless measurement, realize studying the axial erosion corrosion behavior of inner-walls of duct in rotating condition, can control conditions such as flow velocity, medium composition, temperature, silt content, certain saturated gas.
Claims (10)
1. rotary experimental provision of simulating the inner-walls of duct erosion corrosion, it is characterized in that: this device is provided with rotation axis, slurry tank, specimen holder, ring specimen, be provided with carbon brush on rotation axis top, carbon brush is connected with electro-chemical test equipment, rotation axis links to each other with the motor output end that frequency converter is housed, the bottom of rotation axis extends slip top in the slurry tank, connects by adapter between rotation axis and the specimen holder, and ring specimen is installed on the specimen holder.
2. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 1 erosion corrosion, it is characterized in that: be provided with copper nut in adapter inside and be connected with the rotation axis end.
3. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 1 erosion corrosion, it is characterized in that: the both sides of adapter connect specimen holder respectively, sample is connected with an end of stainless steel bar by copper ball, the spring that is provided with in the through hole on the specimen holder, carry out the output of electrochemical signals, the other end of stainless steel bar extends in the adapter.
4. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 1 erosion corrosion, it is characterized in that: the adapter bottom is connected to paddle wheel.
5. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 1 erosion corrosion, it is characterized in that: the slurry tank top connects the slurry tank loam cake, covers on the slurry tank and plugs rotation axis, auxiliary electrode and salt bridge respectively; Auxiliary electrode inserts in the slip of slurry tank, and mercurous chloride electrode is connected to the slip of slurry tank by salt bridge, and an end of salt bridge extends in the slip of slurry tank, and mercurous chloride electrode inserts in the other end of salt bridge.
6. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 5 erosion corrosion, it is characterized in that: the slurry tank inwall place in the auxiliary electrode and the salt bridge outside is provided with baffle plate.
7. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 1 erosion corrosion, it is characterized in that: be provided with splash-back in the rotation axis bottom.
8. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 1 erosion corrosion, it is characterized in that: the rotation axis outside is provided with the teflon cover.
9. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 1 erosion corrosion, it is characterized in that: be equipped with well heater and temperature regulating device in the slurry tank.
10. according to the rotary experimental provision of the described simulation inner-walls of duct of claim 1 erosion corrosion, it is characterized in that: specimen holder adopts the circular ring pipe structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020678306XU CN201917511U (en) | 2010-12-23 | 2010-12-23 | Rotary experimental device for simulating erosion corrosion of inner wall of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020678306XU CN201917511U (en) | 2010-12-23 | 2010-12-23 | Rotary experimental device for simulating erosion corrosion of inner wall of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201917511U true CN201917511U (en) | 2011-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020678306XU Expired - Fee Related CN201917511U (en) | 2010-12-23 | 2010-12-23 | Rotary experimental device for simulating erosion corrosion of inner wall of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201917511U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564936A (en) * | 2010-12-23 | 2012-07-11 | 中国科学院金属研究所 | Rotary test device for simulating erosion corrosion on inner wall of pipeline |
| CN103196821A (en) * | 2013-04-03 | 2013-07-10 | 上海电力学院 | Inner tube wall wearing and abrasion testing device |
| CN106468650A (en) * | 2015-08-21 | 2017-03-01 | 中国石油天然气股份有限公司 | Reactor and corrosion test system |
| CN107238543A (en) * | 2017-06-08 | 2017-10-10 | 哈尔滨工业大学 | Road inorganic binder class base material antiscour evaluation experimental device and evaluation method |
| CN108444834A (en) * | 2018-02-11 | 2018-08-24 | 广州合成材料研究院有限公司 | Comprehensive accelerated ageing system |
-
2010
- 2010-12-23 CN CN201020678306XU patent/CN201917511U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564936A (en) * | 2010-12-23 | 2012-07-11 | 中国科学院金属研究所 | Rotary test device for simulating erosion corrosion on inner wall of pipeline |
| CN102564936B (en) * | 2010-12-23 | 2014-01-08 | 中国科学院金属研究所 | Rotary test device for simulating erosion corrosion on inner wall of pipeline |
| CN103196821A (en) * | 2013-04-03 | 2013-07-10 | 上海电力学院 | Inner tube wall wearing and abrasion testing device |
| CN103196821B (en) * | 2013-04-03 | 2016-03-30 | 上海电力学院 | Pipe material inner wall wearing and tearing abrasion test device |
| CN106468650A (en) * | 2015-08-21 | 2017-03-01 | 中国石油天然气股份有限公司 | Reactor and corrosion test system |
| CN107238543A (en) * | 2017-06-08 | 2017-10-10 | 哈尔滨工业大学 | Road inorganic binder class base material antiscour evaluation experimental device and evaluation method |
| CN108444834A (en) * | 2018-02-11 | 2018-08-24 | 广州合成材料研究院有限公司 | Comprehensive accelerated ageing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20111223 |