CN203732496U - Simple simulation device for low-speed pipeline internal corrosion and electrochemical testing - Google Patents
Simple simulation device for low-speed pipeline internal corrosion and electrochemical testing Download PDFInfo
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- CN203732496U CN203732496U CN201420092306.XU CN201420092306U CN203732496U CN 203732496 U CN203732496 U CN 203732496U CN 201420092306 U CN201420092306 U CN 201420092306U CN 203732496 U CN203732496 U CN 203732496U
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 10
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 229920001817 Agar Polymers 0.000 claims description 4
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Abstract
The utility model discloses a simple simulation device for low-speed pipeline internal corrosion and electrochemical testing. The simple simulation device can realize the electrochemical testing in a pipeline with a flow speed smaller than 1 m/s and the accelerated corrosion test of internal corrosion in a pipeline with a flow speed small than 3 m/s in the different closed corrosive medium environments at the temperature lower than 75 DEG C. The device comprises a corrosive solution storage container, a solution circulation metering system, a simulated pipeline internal corrosion sample chamber and an electrochemical testing device, wherein the corrosive solution storage container stores a solution; the solution circulation metering system comprises a frequency conversion magnetic pump and a flow meter, and the flow meter can measure a test flow speed; samples of the simulated pipeline internal corrosion sample chamber simulate corrosion states of testing devices and the like in the simulation pipeline in the six o'clock direction; and the electrochemical testing device comprises an electrochemical testing interface, a reference electrode external introduced salt bridge and the like. According to the simple simulation device, leakage of hydrogen sulfide and solutions of the hydrogen sulfide is greatly reduced, safety of a testing worker and the environment is improved, the pipeline internal corrosion and electrochemical parametric measurement under the actual work conditions can be conveniently and accurately simulated, and the applicable testing range is wider.
Description
Technical field
The utility model relates to etchant solution and oil product, simulated environment corrosion electrochemistry and the corrosion test field that low velocity fluid comprises wet hydrogen-sulfide environmental and mixed gas thereof, be specially the simple and easy analogue means of a kind of low speed pipeline corrosion and electro-chemical test, it can be realized lower than being less than electro-chemical test in 1m/s flow velocity pipeline in 75 DEG C of airtight different corrosive medium environment and being less than the simulation accelerated corrosion test of pipeline corrosion of 3m/s flow velocity.
Background technology
The energy resource supply main body of whole world industry is still petrochemical industry resource, along with the demand of economic construction, the oil field of the corrosive environment such as sulfuretted hydrogen, carbon dioxide that contains variable concentrations is exploited, collect defeated and all kinds of etchant solutions, crude corrosively, product oil, chemical reagent etc. are delivered to all parts of the country in the mode of pipeline transportation.Pipeline corrosion is difficult to monitoring because it is disguised, and conventional method has at present: 1, on conveying pipe, weld one section of bypass for experiment, and 2, adopt rotation electrode to simulate corresponding flow velocity.For method 1, test condition and actually there is good relevance, but to test condition controlled relatively a little less than, medium is comparatively single on selecting, make corrosion especially in certain flow rate, temperature and medium are understood and are lacked integrality the impact of corrosion, are unfavorable for the complete theory of construction and test framework.For method 2, the residing linear velocity of the rotation of potential electrode fict fluid velocity, and easily there is convection current etc. in solution in still.Therefore study pipeline corrosion behavior and galvanochemistry performance and inherent law thereof in relevant particular design flow media, accumulation related data, for the corresponding standard of material selection construction of petrochemical unit has great practical significance.
Conveying pipe internal corrosion is the most common in pipeline transportation, the most hidden, because the corrosion initial stage is difficult to timely discovery, once monitor, corrodes in Rapid development stage, and pipeline is the edge in losing efficacy often, and the space of all kinds of Compensation measures performances is very limited.In mobile corrosive medium, corrosion and the correlativity of flow velocity are mainly manifested in: under certain flow rate, the corrosion product rete of metal surface and the adhesion of metallic matrix and fluid are forced to take part the antagonism between the souring of particle, under certain flow rate, material transports growth of microorganism, temperature, for film layer structure, corrosion kinetics, growth of microorganism, all has decisive influence.Have not yet to see the report of relevant this type of experiment simulator.
Utility model content
The purpose of this utility model is to provide the simple and easy analogue means of a kind of low speed pipeline corrosion and electro-chemical test, this device can realize airtight condition of normal pressure and not too under high-temperature (25-75 DEG C) comprise that the simulation accelerated corrosion test of pipeline corrosion that is less than electro-chemical test in 1m/s flow velocity pipeline in the etchant solution of wet hydrogen-sulfide environmental and mixed gas thereof and oil product, simulated environment etchant solution and is less than 3m/s flow velocity provides condition for the internal corrosion experimental study in pipeline transportation of research petrochemical complex material.
The technical solution of the utility model is:
The simple and easy analogue means of a kind of low speed pipeline corrosion and electro-chemical test, this device comprises that etchant solution storage follows container, simulation pipeline corrosion sample chamber and electro-chemical test chamber, it is closed container that described etchant solution storage follows container, which is provided with water delivering orifice, after one end connection plexi-glass tubular of rising pipe, stretch into storage by water delivering orifice and follow container bottom, the other end of rising pipe is divided into two branch roads by threeway, two branch roads remerge Cheng Yilu behind connecting analog pipeline corrosion sample chamber and electro-chemical test chamber respectively, it is return pipe, the end of return pipe stretches into etchant solution storage and follows container bottom.
The top that described etchant solution storage follows container is provided with upper hose, follows in container for solution is injected to storage, and upper hose is provided with 316L ball valve II; The bottom that storage follows container is provided with emptying solution pipeline, follows the solution in container for discharging storage; The storage of described etchant solution follows container by water-bath control solution temperature in it.
Described electro-chemical test chamber is rectangular parallelepiped hollow structure, and test sample, contrast electrode draw salt bridge outward and electrode is inserted in it by Suo Kai hole, top, electro-chemical test chamber respectively, and each hole seals by plug; Corrosion resistant plate is placed respectively in above and below, electro-chemical test chamber, is bolted and makes corrosion resistant plate plug to be compressed to the sealing realizing electro-chemical test chamber between the corrosion resistant plate of above and below.
Described simulation pipeline corrosion sample chamber is tubular structure, in the pipeline that tubular corrosion two ends, sample chamber connect, be provided with set bolt, corrosion test sample is multiple, be fixed on described set bolt with the weaving manner of mutually insulated with rope each other, to simulate the etch state of 6 the most serious directions of pipeline corrosion.
Described rising pipe is provided with frequency conversion magnetic drive pump and liquid level evacuated tube, and 316L ball valve III is set in liquid level evacuated tube; Return pipe is provided with Hall flow meter.
The storage of described etchant solution follows in container etchant solution for comprising wet hydrogen-sulfide environmental and mixed gas thereof under normal pressure, temperature 25-75 DEG C condition and oil product, simulated environment etchant solution etc.
It is organic glass material that described etchant solution storage follows container, and described simulation pipeline corrosion sample chamber and its material of electro-chemical test chamber are organic glass; Described rising pipe and return pipe are silicone tube or PPR pipe; Described emptying solution pipeline is plexi-glass tubular or PPR pipe.
Described etchant solution storage follows container upper end and is also provided with draft tube, thermopair and escape pipe; One end of draft tube is stretched into storage and is followed solution bottom in container, another termination gas cylinder; The end of thermopair stretches into storage and follows in the interior solution of container; Escape pipe one end stretch into that storage follows in container but its end above solution, another termination exhaust-gas treatment bottle.
Described etchant solution storage follows container bottom and connects emptying solution pipeline, and emptying solution pipeline passes water-bath bottom, and at its end, 316L ball valve I is set, and takes bolt and gasket seal sealing between emptying solution pipeline and water-bath.
Described frequency conversion magnetic drive pump adopts tetrafluoro or engineering plastics magnetic drive pump, and magnetic force delivery side of pump liquid level is at least followed liquid level of solution 10cm in container lower than storage, and the flow velocity of frequency conversion magnetic drive pump should be controlled in 150L/min.
Above connecting line, 2 centimeters increase glass stopcock, make the quartz ampoule internal corrosion solution and the agar that enter electro-chemical test chamber realize and conducting in quartz ampoule with gas in emptying pipeline.
On two branch roads that described rising pipe is divided into, on the pipeline of simulation two ends, pipeline corrosion sample chamber, be respectively equipped with 316L ball valve IV, on the pipeline of two ends, electro-chemical test chamber, be respectively equipped with 316L ball valve V.
The utility model design concept is as follows:
The simple and easy analogue means of the utility model low speed pipeline corrosion and electro-chemical test is provided with etchant solution storage and follows container, solution circulation metering system, simulation pipeline corrosion sample chamber and electrochemical testing device.The etchant solution storage of this device follows container, simulation pipeline corrosion sample chamber and electro-chemical test chamber and is organic glass and makes, under a large amount of normal pressures, temperature 25-75 DEG C condition, comprise that the etchant solution of wet hydrogen-sulfide environmental and mixed gas thereof and oil product, simulated environment etchant solution are stored in and follow container, ensure the stable of testing laboratory's temperature and solution, water-bath heated solution is realized the temperature control of solution, and storage follows thermopair in container and realize the measurement of solution actual temperature.
Solution circulation metering system adopts tetrafluoro or the circulation of engineering plastics frequency conversion magnetic drive pump, leads to simulation pipeline corrosion sample chamber and electro-chemical test chamber and adopts ball valve control.Form because the solution container adopting and the circulation system and simulation pipeline corrosion sample chamber and electro-chemical test chamber are insulating material, electro-chemical test chamber outreaches after salt bridge is connected with contrast electrode and can realize the electrochemical measurement in different temperatures, different in flow rate, different medium in increase.Frequency conversion magnetic drive pump does not have self-suction function, is meeting under airtight condition, can adopt to open in liquid level evacuated tube 316L ball valve and realize magnetic drive pump front end and be entirely full of etchant solution, and Hall flow meter can determination test flow velocity.The simulation independent collateral branch in pipeline corrosion sample chamber can realize electrochemical sample and change under the prerequisite of abort not.Simulation pipeline corrosion sample chamber adopts the mode of mutually insulated 6 the direction corrosion samples of arranging, and possesses the feature of pipeline corrosion.
On the rubber plug of three electrodes above electrochemical chamber, increase by two pairs of corrosion resistant plates, two ends adopt fastening bolt to be fixedly clamped, and can realize the leakproofness of electro-chemical test chamber.Its gas feed can be connected with gas meter, also can be connected the requirement that realizes variable concentrations with mixing gas cylinder.
The utility model compared with prior art tool has the following advantages:
1, the utility model is with organic glass, and silicone tube is material and other anti-corrosion servicing units, make simple and convenient, with low cost, good looking appearance, can simplify experimentation and save cost.
2, solution container of the present utility model can be contained tank solution, in multiple simulation pipeline corrosions sample chamber, series connection can be implemented multiple tests simultaneously, adopt solution series can effectively reduce the impact of solution concentration on test, reduce the error of test figure, and be conducive to realize the temperature stabilization of etchant solution in closed circulation, for condition has been created in the research of research pipeline corrosion.
3, solution chamber of the present utility model measures gas flow by flowmeter, can conveniently control the content in the corrosive environments such as wet sulfuretted hydrogen in etchant solution, for condition has been created in the corrosion research of different condition, and cost-saving, make simple.
4, small volume of the present utility model, in conjunction with the water bath with thermostatic control experimental temperature of control simulation solution comparatively accurately, can realize lower than 75 DEG C, and frequency conversion magnetic drive pump is under the monitoring of Hall flow meter, can realize the control of multiple speed, draw under salt bridge support outside simple the electro-chemical test chamber of collateral branch, can easily realize galvanochemistry Fast Evaluation and the test of respective electrical chemical data, experimentation is very convenient.
Brief description of the drawings
Fig. 1 is the simple and easy analogue means overview of low speed pipeline corrosion and electro-chemical test;
Fig. 2 is pipeline corrosion test specimen layout viewing;
Fig. 3 is the A-A sectional view of electro-chemical test chamber in the simple and easy analogue means of low speed pipeline corrosion and electro-chemical test;
Fig. 4 is the vertical view of electro-chemical test chamber in the simple and easy analogue means of low speed pipeline corrosion and electro-chemical test;
Fig. 5 is contrast electrode salt bridge ejector figure in the simple and easy analogue means of low speed pipeline corrosion and electro-chemical test.
In figure: 1-316L ball valve I; 2-emptying solution pipeline; 3-sealing bolt; 4-gasket seal; 5-water-bath; The storage of 6-etchant solution follows container; 7-draft tube; 8-liquid level evacuated tube; 9-316L ball valve II; 10-upper hose; 11-plexi-glass tubular; 12-escape pipe; 13-frequency conversion magnetic drive pump; 14-316L ball valve III; 15-rising pipe; 16-threeway; 17-316L ball valve IV; 18-316L ball valve V; 19-electro-chemical test chamber; 20-plug; 21-corrosion resistant plate; 22-contrast electrode draws salt bridge outward; 23-return pipe; 24-is connected and fixed rope; 25-platinum electrode (to electrode); 26-working electrode (test sample); 27-Hall flow meter; 28-simulates pipeline corrosion sample chamber; 29-set bolt I; 30-coupons (corrosion test sample); 31-set bolt II; 32-agar; 33-glass stopcock; 34-quartz glass tube; 35-thermopair.
Embodiment
As Figure 1-5, the simple and easy analogue means of the utility model low speed pipeline corrosion and electro-chemical test comprises that etchant solution storage follows container 6, simulation pipeline corrosion sample chamber 28 and electro-chemical test chamber 19, etchant solution storage follows container 6 for closed container, its upper end is provided with water delivering orifice, plexi-glass tubular 11 stretches into storage by water delivering orifice and follows container 6 bottoms, plexi-glass tubular 11 picks out one end of water pipe 15, after setting gradually frequency conversion magnetic drive pump 13 and liquid level evacuated tube 8 on rising pipe 15, be divided into two branch roads by threeway 16, two branch roads are merged into a road by threeway 16 behind connecting analog pipeline corrosion sample chamber 28 and electro-chemical test chamber 19 respectively again, it is return pipe 23, return pipe 23 is provided with Hall flow meter 27, the end of return pipe 23 stretches into etchant solution storage and follows container 6 bottoms.Described frequency conversion magnetic drive pump 13 adopts tetrafluoro or engineering plastics magnetic drive pump, and magnetic force delivery side of pump liquid level is at least followed the interior liquid level of solution 10cm of container 6 lower than storage, and the flow velocity of frequency conversion magnetic drive pump should be controlled in 150L/min.Rising pipe 15 connects liquid level evacuated tube 8 by a threeway 16, and 316L ball valve III 14 is set in liquid level evacuated tube 8.Described rising pipe 15 and return pipe 23 are silicone tube or PPR pipe;
The storage of described etchant solution follows in container 6 etchant solution for comprising wet hydrogen-sulfide environmental and mixed gas thereof under normal pressure, temperature 25-75 DEG C condition and oil product, simulated environment etchant solution etc.Etchant solution storage follows container 6 for organic glass material, controls solution temperature in it by water-bath 5.The top that described etchant solution storage follows container 6 is provided with upper hose 10, follows in container 6 for solution is injected to storage, and upper hose 10 is provided with 316L ball valve II 9; Emptying solution pipeline 2 is positioned at etchant solution storage and follows under container 6 and follow container 6 bottoms with etchant solution storage and be connected, follow the solution in container 6 for discharging storage, emptying solution pipeline 2 is through water-bath 5 bottoms, take sealing bolt 3 and gasket seal 4 to seal by water-bath 5 bottoms, emptying solution pipeline 2 is plexi-glass tubular or PPR pipe, and its end arranges 316L ball valve I 1.Etchant solution storage follows container 6 tops and is integrated draft tube 7, escape pipe 12 and the temperature thermocouple assay mouth of pipe that bonding forms, and one end of draft tube 7 is stretched into storage and followed the interior solution of container 6 bottom, another termination gas cylinder; Escape pipe 12 one end stretch into that storage follows in container 6 but its end above solution, another termination exhaust-gas treatment bottle.The described temperature thermocouple assay mouth of pipe is organic glass half blank pipe, and bottom is stretched in solution, and upper opening inserts PT100 thermopair 35.
Described electro-chemical test chamber 19 is the rectangular parallelepiped hollow structure of organic glass material, test sample (26), contrast electrode draw salt bridge (22) outward and electrode (25) are inserted in it by Suo Kai hole, top, electro-chemical test chamber (19) respectively, and each hole is by plug (20) sealing; Corrosion resistant plate (21) is placed respectively in above and below, electro-chemical test chamber (19), connects and make corrosion resistant plate (21) compress the sealing realizing electro-chemical test chamber (19) to plug (20) between the corrosion resistant plate (21) of above and below by set bolt II (31);
Test sample 26 is placed in electro-chemical test chamber 19 by the hole opened at an upper portion thereof, and contrast electrode draws salt bridge 22 outward and be also that corresponding hole by opening is at an upper portion thereof inserted wherein to electrode 25, each hole seals by plug 20 separately, then on plug 20 and the bottom of corresponding electro-chemical test chamber 19 place corrosion resistant plate 21 compactings sealings, between upper and lower corrosion resistant plate 21, be fixedly connected with by set bolt II 31, on the 19 two ends connecting lines of electro-chemical test chamber, be respectively equipped with 316L ball valve V 18.On connecting line, 2 centimeters increase glass stopcock 33, make the quartz ampoule 34 internal corrosion solution and the agar 32 that enter electro-chemical test chamber 19 realize and conducting in quartz ampoule with gas in emptying pipeline.
Simulation pipeline corrosion sample chamber 28 is the tubular structure of organic glass material, in the pipeline that 28 two ends, tubular corrosion sample chamber connect, be provided with set bolt I 29, between corrosion test sample 30, weave and be fixed in the set bolt I 29 of both sides pipeline in the mode of mutually insulated with rope 24, with the etch state of 6 the most serious directions of simulation pipeline corrosion, on the 28 two ends pipelines of simulation pipeline corrosion sample chamber, be respectively equipped with 316L ball valve IV 17.
After above-mentioned pipeline connection is fastening, electro-chemical test sample is installed and fixed corresponding fastening bolt 31, subsequently contrast electrode is drawn after salt bridge and platinum electrode insert plug and be fixed on position corresponding to electro-chemical test chamber and fix corresponding fastening bolt 31.The installation of corroding sample 30 in simulation pipeline corrosion sample chamber 28 should be early than the connection of overall pipeline, adopts the mode of sample mutually insulated to be fixed on simulation pipeline corrosion sample chamber, fixing airtight with clip after the silicone tube at rear connection two ends.
After sample is in place, close etchant solution and store up the 316L ball valve I 1 in the evacuated tube of following container 6, open upper hose 10 316L ball valve II 9 above and inject 15-25L solution, specifically determined flexibly by the cycle of being tested and corrosivity, after close all 316L ball valves and the glass stopcock except 316L ball valve III 14, adopting makes rising pipe 15 be full of solution from the mode of gas outlet plenum, close 316L ball valve III 14, by corresponding the Temperature Setting of water-bath temperature, insert PT100 thermopair, connect corresponding gas cylinder and tail gas receiving trap, after whether deoxygenation as requested, be filled with again the gas of corresponding proportion.
Connect Hall flow meter, open metering, for the continuity of testing, generally can more than 2 groups simulation pipeline corrosion sample chamber in parallel.Before experiment, open one group of vacant pipeline corrosion sample chamber, if current test is electro-chemical test, open the 316L ball valve 17 of 19 both sides, electro-chemical test chamber, close the 316L ball valve 18 on vacant both sides, simulation pipeline corrosion sample chamber, regulate frequency conversion magnetic drive pump to realize the flow velocity requiring, start electrochemical test.For simulation pipeline corrosion, test is same thinking.
Embodiment 1:
In the present embodiment, installing after corresponding sample, in following container, etchant solution storage pours 20L NACE A solution (5wt%NaCl+0.5wt%HAc) into, it is 24 DEG C by water-bath design temperature, close 316L ball valve 9, emptying magnetic drive pump front end air makes it to be full of solution, passes into 100-200ml/min N
2within two hours, to remove the dissolved oxygen DO in solution, the rear speed of taking 200ml/min according to testing requirements is filled with H in solution
2s; Start to test the corresponding potential-time curve of galvanochemistry with the flow velocity of 1m/s, electrokinetic potential polarization curve etc., after by simulation both sides, pipeline corrosion sample chamber ball valve open, close both sides, electro-chemical test chamber ball valve, open the corrosion test under long 1m/s flow velocity.
Claims (9)
1. the simple and easy analogue means of a low speed pipeline corrosion and electro-chemical test, it is characterized in that: this device comprises that etchant solution storage follows container (6), simulation pipeline corrosion sample chamber (28) and electro-chemical test chamber (19), it is closed container that described etchant solution storage follows container (6), which is provided with water delivering orifice, after one end connection plexi-glass tubular (11) of rising pipe (15), stretch into storage by water delivering orifice and follow container (6) bottom, the other end of rising pipe (15) is divided into two branch roads by threeway (16), two branch roads remerge Cheng Yilu after connecting analog pipeline corrosion sample chamber (28) and electro-chemical test chamber (19) respectively, be return pipe (23), the end of return pipe (23) stretches into etchant solution storage and follows container (6) bottom,
The top that described etchant solution storage follows container (6) is provided with upper hose (10), follows in container (6) for solution is injected to storage, and upper hose (10) is provided with 316L ball valve II (9); The bottom that storage follows container (6) is provided with emptying solution pipeline (2), follows the solution in container (6) for discharging storage; Described etchant solution storage follows container (6) and controls solution temperature in it by water-bath (5);
Described electro-chemical test chamber (19) is rectangular parallelepiped hollow structure, test sample (26), contrast electrode draw salt bridge (22) outward and electrode (25) are inserted in it by Suo Kai hole, top, electro-chemical test chamber (19) respectively, and each hole is by plug (20) sealing; Corrosion resistant plate (21) is placed respectively in above and below, electro-chemical test chamber (19), connects and make corrosion resistant plate (21) compress the sealing realizing electro-chemical test chamber (19) to plug (20) between the corrosion resistant plate (21) of above and below by set bolt II (31);
Described simulation pipeline corrosion sample chamber (28) is tubular structure, in the pipeline that tubular corrosion two ends, sample chamber (28) connect, be provided with set bolt I (29), corrosion test sample (30) is multiple, is fixed in described set bolt I (29) each other with rope (24) with the weaving manner of mutually insulated.
2. the simple and easy analogue means of low speed pipeline corrosion according to claim 1 and electro-chemical test, it is characterized in that: described rising pipe (15) is provided with frequency conversion magnetic drive pump (13) and liquid level evacuated tube (8), and 316L ball valve III (14) is set in liquid level evacuated tube (8); Return pipe (23) is provided with Hall flow meter (27).
3. the simple and easy analogue means of low speed pipeline corrosion according to claim 1 and electro-chemical test, is characterized in that: the storage of described etchant solution follows in container (6) etchant solution for comprising wet hydrogen-sulfide environmental and mixed gas thereof under normal pressure, temperature 25-75 DEG C condition and oil product, simulated environment etchant solution etc.
4. the simple and easy analogue means of low speed pipeline corrosion according to claim 2 and electro-chemical test, it is characterized in that: described etchant solution storage follows container (6) for organic glass material, and described simulation pipeline corrosion sample chamber (28) and its material of electro-chemical test chamber (19) are organic glass; Described rising pipe (15) and return pipe (23) are silicone tube or PPR pipe; Described emptying solution pipeline (2) is plexi-glass tubular or PPR pipe.
5. the simple and easy analogue means of low speed pipeline corrosion according to claim 1 and electro-chemical test, is characterized in that: described etchant solution storage follows container (6) upper end and is also provided with draft tube (7), thermopair (35) and escape pipe (12); One end of draft tube (7) is stretched into storage and is followed the interior solution of container (6) bottom, another termination gas cylinder; The end of thermopair (35) stretches into storage and follows in the interior solution of container (6); Escape pipe (12) one end stretch into that storage follows in container (6) but its end above solution, another termination exhaust-gas treatment bottle.
6. the simple and easy analogue means of low speed pipeline corrosion according to claim 1 and electro-chemical test, it is characterized in that: described etchant solution storage follows container (6) bottom and connects emptying solution pipeline (2), emptying solution pipeline (2) is through water-bath (5) bottom, and at its end, 316L ball valve I (1) is set, between emptying solution pipeline (2) and water-bath (5), take sealing bolt (3) and gasket seal (4) sealing.
7. the simple and easy analogue means of low speed pipeline corrosion according to claim 2 and electro-chemical test, it is characterized in that: described frequency conversion magnetic drive pump (13) adopts tetrafluoro or engineering plastics magnetic drive pump, magnetic force delivery side of pump liquid level is at least followed the interior liquid level of solution 10cm of container (6) lower than storage, and the flow velocity of frequency conversion magnetic drive pump should be controlled in 150L/min.
8. the simple and easy analogue means of low speed pipeline corrosion according to claim 2 and electro-chemical test, it is characterized in that: on connecting line, 2 centimeters increase glass stopcock (33), and quartz ampoule (34) the internal corrosion solution and the agar (32) that make to enter electro-chemical test chamber (19) with gas in emptying pipeline are realized and being conducted in quartz ampoule.
9. the simple and easy analogue means of low speed pipeline corrosion according to claim 1 and electro-chemical test, it is characterized in that: on two branch roads that described rising pipe (15) is divided into, on the pipeline of simulation two ends, pipeline corrosion sample chamber (28), be respectively equipped with 316L ball valve IV (17), on the pipeline of two ends, electro-chemical test chamber (19), be respectively equipped with 316L ball valve V (18).
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| CN201420092306.XU CN203732496U (en) | 2014-02-27 | 2014-02-27 | Simple simulation device for low-speed pipeline internal corrosion and electrochemical testing |
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| CN201420092306.XU CN203732496U (en) | 2014-02-27 | 2014-02-27 | Simple simulation device for low-speed pipeline internal corrosion and electrochemical testing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880502A (en) * | 2014-02-27 | 2015-09-02 | 中国科学院金属研究所 | Simple stimulation apparatus for corrosion and electrochemistry tests in low speed pipeline |
| CN106442305A (en) * | 2016-09-26 | 2017-02-22 | 中国科学院海洋研究所 | Indoor seawater erosion electrochemistry experiment device capable of adjusting flow speed |
| CN109765282A (en) * | 2019-01-28 | 2019-05-17 | 浙江工业大学 | Medical magnesium alloy implant devices multifactor dynamic degradation performance evaluation device in vitro |
| CN112986110A (en) * | 2019-12-13 | 2021-06-18 | 上海大学 | Portable device for simulating multi-space environment |
-
2014
- 2014-02-27 CN CN201420092306.XU patent/CN203732496U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880502A (en) * | 2014-02-27 | 2015-09-02 | 中国科学院金属研究所 | Simple stimulation apparatus for corrosion and electrochemistry tests in low speed pipeline |
| CN104880502B (en) * | 2014-02-27 | 2017-05-17 | 中国科学院金属研究所 | Simple stimulation apparatus for corrosion and electrochemistry tests in low speed pipeline |
| CN106442305A (en) * | 2016-09-26 | 2017-02-22 | 中国科学院海洋研究所 | Indoor seawater erosion electrochemistry experiment device capable of adjusting flow speed |
| CN109765282A (en) * | 2019-01-28 | 2019-05-17 | 浙江工业大学 | Medical magnesium alloy implant devices multifactor dynamic degradation performance evaluation device in vitro |
| CN112986110A (en) * | 2019-12-13 | 2021-06-18 | 上海大学 | Portable device for simulating multi-space environment |
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