CN102928332B - A kind of dynamic corrosion device of high-temperature liquid medium - Google Patents
A kind of dynamic corrosion device of high-temperature liquid medium Download PDFInfo
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- CN102928332B CN102928332B CN201210477164.4A CN201210477164A CN102928332B CN 102928332 B CN102928332 B CN 102928332B CN 201210477164 A CN201210477164 A CN 201210477164A CN 102928332 B CN102928332 B CN 102928332B
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Abstract
A kind of dynamic corrosion device of high-temperature liquid medium, relate to a kind of experimental facilities, comprise primary tank, electric rotating machine, magnetic agitation system and specimen holder, it is characterized in that: described primary tank is connected with device upper cover by flange seal, crucible is provided with in primary tank, put into liquid medium in crucible, described primary tank outside is provided with thermofin, between described thermofin and primary tank, resistance wire is housed; Described magnetic agitation system comprises magnet and magnetic force rotates mobile jib, and described device upper cover outside is wound with water cooling tube, and the side of described primary tank is connected to fusing case and hutch respectively by pipeline.The present invention can obtain different fluid velocities by the rotating speed of electric rotating machine; carry out the corrosion experiment of material under different in flow rate; and can more accurate coutroi velocity and temperature; invention has been vacuum and atmosphere protection design simultaneously; be applicable to the requirement that vacuum environment requires or the liquid medium with certain toxicity carried out to atmosphere protection; be suitable for high temperature oil, fused salt, the Dynamic Corrosion experiment of the high-temp liquid media such as liquid metal.<!--1-->
Description
Technical field
The present invention relates to a kind of experimental facilities, be specifically related to a kind of dynamic corrosion device of high-temperature liquid medium.
Background technology
When storage and the transport of carrying out high-temp liquid medium, need to carry out Material selec-tion to hold-up vessel and transmission pipeline.The corrosion experiment of general high-temp liquid medium is based on static state, and the Material selec-tion of transmission pipeline then needs the relative motion considering fluid and material, and relative motion is for the cooperative effect of corrosion.Thus, Dynamic Corrosion experiment is carried out significant for the selecting properly of material.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of can realize fluid velocity under vacuum seal condition and temperature regulates, and realizes the importing of high-temp liquid medium and the dynamic corrosion device of high-temperature liquid medium of derivation.
Technical matters to be solved by this invention realizes by the following technical solutions,
A kind of dynamic corrosion device of high-temperature liquid medium, comprise primary tank, electric rotating machine, magnetic agitation system and specimen holder, it is characterized in that: described primary tank is connected with device upper cover by flange seal, crucible is provided with in primary tank, described crucible is fixed on bottom primary tank by crucible jig, arbitrarily rock to prevent crucible, described crucible is provided with an aperture, thermopair is inserted in aperture, liquid medium is put in crucible, described primary tank outside is provided with thermofin, between described thermofin and primary tank, resistance wire is housed;
Described magnetic agitation system comprises magnet and magnetic force rotates mobile jib, described magnetic force rotates mobile jib through device upper cover, extend in crucible, and magnetic force rotation mobile jib does not directly contact with device upper cover and crucible, described magnetic force rotates mobile jib upper end and installs magnet and connect with electric rotating machine, and described magnetic force rotates mobile jib bottom and is connected with revolving vane by fixed block, and described specimen holder rotates mobile jib through magnetic force, be placed in crucible, specimen holder is provided with treats laboratory sample;
Described device upper cover outside is wound with water cooling tube, jut in the middle of described device upper cover is provided with two connectors, a connector connects vacuum pump by pipeline, vacuum valve is provided with between connector and pipeline, another connector is connected with vacuum and takes into account gas bottle, be provided with Pirani gauge between described vacuum meter and connector, the pipeline of described gas bottle and connector is provided with an air release, tensimeter and vacuum valve;
The side of described primary tank is connected to fusing case and hutch respectively by pipeline, the export mouth place of pipeline and primary tank is provided with a block, when deriving high-temp liquid medium, prevent high-temp liquid from flowing into flange, described fusing case and the connecting tube of hutch and primary tank are respectively equipped with a vacuum valve and abutment ring.
The connection of described specimen holder and crucible adopts rotates cassette and connects, and to prevent moving of sample position, arranges head piece be simultaneously convenient to high-temp liquid medium and all derive at the position of not placing sample.
The material that described crucible, magnetic force rotate mobile jib and revolving vane is high temperature resistant, and the solubleness of alloying component in liquid medium is low.
During the selection of the present invention to high-temp liquid container, pipeline material, need to carry out high temperature corrosion experiment to candidate material, especially for pipeline material, need to obtain the Dynamic Corrosion parameter of material in high-temp liquid medium, to carry out rational material evaluation.Utilize the principle of magnet rotary actuation, under vacuum seal condition, drive screw blade in high-temp liquid, rotate the relative motion realized between static sample and liquid medium, and provide vacuum protection by vacuum pump, or utilize inert gas to provide atmosphere protection.The present invention has carried out the thawing of high-temp liquid medium simultaneously and has derived storage design, is convenient to installation and the taking-up of sample.In order to avoid the temperature of magnet is too high, present invention employs water cooling tube around device upper cover, and the gap of swingle and device upper cover is reduced, reduce the heat radiation of high temperature primary tank for magnet.
The invention has the beneficial effects as follows: obtain the comparatively accurate fluid field of magnetic agitation by fluid mechanics and numerical simulation, obtain the relative velocity of fluid and sample.Different fluid velocities can be obtained by the rotating speed of electric rotating machine; carry out the corrosion experiment of material under different in flow rate; and can more accurate coutroi velocity and temperature; different temperatures can be carried out; the corrosion behavior research of material under different in flow rate; invention has been vacuum and atmosphere protection design simultaneously; be applicable to the requirement that vacuum environment requires or the liquid medium with certain toxicity carried out to atmosphere protection; the present invention is suitable for high temperature oil; fused salt, the Dynamic Corrosion experiment of the high-temp liquid media such as liquid metal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is inventive samples shelf structure schematic diagram.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1 and Figure 2, a kind of dynamic corrosion device of high-temperature liquid medium, comprise primary tank 19, electric rotating machine 1, magnetic agitation system and specimen holder 16, primary tank 19 is connected with device upper cover 4 by flange seal, crucible 15 is provided with in primary tank 19, crucible 15 is fixed on bottom primary tank 19 by crucible jig 18, arbitrarily rock to prevent crucible 15, crucible 15 is provided with an aperture, thermopair 22 is inserted in aperture, put into liquid medium in crucible 15, primary tank 19 outside is provided with thermofin 21, and resistance wire 20 is housed between thermofin 21 and primary tank 19;
Magnetic agitation system comprises magnet 2 and magnetic force rotates mobile jib 17, magnetic force rotates mobile jib 17 through device upper cover 4, extend in crucible 15, and magnetic force rotation mobile jib 17 does not directly contact with device upper cover 4 and crucible 15, magnetic force rotates mobile jib 17 upper end and installs magnet 2 and connect with electric rotating machine 1, magnetic force rotates mobile jib 17 bottom and is connected with revolving vane 13 by fixed block 14, specimen holder 16 rotates mobile jib 17 through magnetic force, be placed in crucible 15, the connection of itself and crucible 15 adopts rotates cassette and connects, to prevent moving of sample position, arrange head piece to be convenient to high-temp liquid medium all to derive at the position of not placing sample simultaneously, specimen holder 16 is provided with specimen holder 28 to which is provided with and treat laboratory sample 11,
Device upper cover 4 outside is wound with water cooling tube 3, middle jut is provided with two connectors, a connector connects vacuum pump 12 by pipeline, vacuum valve 5 is provided with between connector and pipeline, another connector is connected with vacuum meter 25 and gas bottle 27, be provided with Pirani gauge 23 between vacuum meter 25 and connector, gas bottle 27 is provided with an air release 26, tensimeter 24 and vacuum valve 5``` with the pipeline of connector;
The side of primary tank 19 is connected to fusing case 7 and hutch 8 respectively by pipeline, the export mouth place of pipeline and primary tank 19 is provided with a block 9, when deriving high-temp liquid medium, prevent high-temp liquid from flowing into flange, the connecting tube of fusing case 7 and hutch 8 and primary tank 19 is respectively equipped with vacuum valve 5`, a 5`` and abutment ring 6,10.
The material that crucible 15, magnetic force rotate mobile jib 17 and revolving vane 13 is high temperature resistant, and the solubleness of alloying component in liquid medium is low.
First the present invention operationally opens vacuum valve 5, and then open vacuum pump 12 and bleed, gauge 25 records vacuum tightness and is down to below 10Pa, starts to heat the medium solid feed in primary tank 19 and fusing case 7, cooling system of simultaneously fetching boiling water.(if need atmosphere protection, then first close vacuum valve 5 and vacuum pump 12, open vacuum valve 5```, and open air release 26 to required atmosphere pressure, then close air release 26 and vacuum valve 5```); Case 7 Raw to be dissolved all melts, and after the display of the thermopair 22 of primary tank 19 reaches the melting temperature of medium, slowly opens vacuum valve 5`, high temperature fluid is imported crucible 15.Close vacuum valve 5` after to be imported, and take off fusing case 7; When after warming liquid body medium to predetermined temperature, open electric rotating machine 1, progressively slowly accelerate to speed of experiment simultaneously, start to carry out experiment timing after thermopair 22 temperature stabilization.
After having tested, close electric rotating machine 1, off resistance silk 20 power supply, connect storage bin 8, open vacuum valve 5`` and take out storage bin 8 vacuum to below 20Pa, then close vacuum pump 12, to storage bin 8 azimuthal tilt primary tank 19, liquid medium in crucible 15 is imported storage bin 8, then closes vacuum valve 5``, and take off storage bin 8; After room temperature is down to by primary tank 19, close water cooling tube 3, open flange, it takes out from crucible 15 by Rotary Specimen Rack 16.Finally take out sample 11, carry out sample analysis.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a dynamic corrosion device of high-temperature liquid medium, comprise primary tank, electric rotating machine, magnetic agitation system and specimen holder, it is characterized in that: described primary tank is connected with device upper cover by flange seal, be provided with crucible in primary tank, described crucible is fixed on bottom primary tank by crucible jig, and described crucible is provided with an aperture, thermopair is inserted in aperture, put into liquid medium in crucible, described primary tank outside is provided with thermofin, between described thermofin and primary tank, resistance wire is housed;
Described magnetic agitation system comprises magnet and magnetic force rotates mobile jib, described magnetic force rotates mobile jib through device upper cover, extend in crucible, and magnetic force rotation mobile jib does not directly contact with device upper cover and crucible, described magnetic force rotates mobile jib upper end and installs magnet and connect with electric rotating machine, described magnetic force rotates mobile jib bottom and is connected with revolving vane by fixed block, and described specimen holder rotates mobile jib through magnetic force, is placed in crucible;
Described device upper cover outside is wound with water cooling tube, jut in the middle of described device upper cover is provided with two connectors, a connector connects vacuum pump by pipeline, vacuum valve is provided with between connector and pipeline, another connector is connected with vacuum and takes into account gas bottle, be provided with Pirani gauge between described vacuum meter and connector, the pipeline of described gas bottle and connector is provided with an air release, tensimeter and vacuum valve;
The side of described primary tank is connected to fusing case and hutch respectively by pipeline, and the export mouth place of pipeline and primary tank is provided with a block, and described fusing case and the connecting tube of hutch and primary tank are respectively equipped with a vacuum valve and abutment ring.
2. a kind of dynamic corrosion device of high-temperature liquid medium according to claim 1, is characterized in that: the connection of described specimen holder and crucible adopts rotates cassette and connect.
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| CN201210477164.4A CN102928332B (en) | 2012-11-22 | 2012-11-22 | A kind of dynamic corrosion device of high-temperature liquid medium |
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| CN201210477164.4A CN102928332B (en) | 2012-11-22 | 2012-11-22 | A kind of dynamic corrosion device of high-temperature liquid medium |
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| CN102928332B true CN102928332B (en) | 2015-11-18 |
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| RU2758772C1 (en) * | 2021-03-29 | 2021-11-01 | Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской академии наук (ИВТЭ УрО РАН) | Installation for determining the rate of corrosion of materials in molten salts |
| RU2799242C1 (en) * | 2023-03-15 | 2023-07-04 | Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской академии наук (ИВТЭ УрО РАН) | Apparatus for high-temperature corrosion studies of the physical and chemical properties of materials in molten salts |
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