CN110823790A - High-temperature molten salt dynamic corrosion test device - Google Patents
High-temperature molten salt dynamic corrosion test device Download PDFInfo
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- CN110823790A CN110823790A CN201911038444.3A CN201911038444A CN110823790A CN 110823790 A CN110823790 A CN 110823790A CN 201911038444 A CN201911038444 A CN 201911038444A CN 110823790 A CN110823790 A CN 110823790A
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- molten salt
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- 150000003839 salts Chemical class 0.000 title claims abstract description 59
- 238000005260 corrosion Methods 0.000 title claims abstract description 29
- 230000007797 corrosion Effects 0.000 title claims abstract description 29
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 80
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000007769 metal material Substances 0.000 abstract description 16
- 238000005338 heat storage Methods 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to the technical field of machinery, in particular to a high-temperature molten salt dynamic corrosion test device which comprises a heating furnace for storing high-temperature molten salt, a stirring assembly for stirring the high-temperature molten salt in the heating furnace and a sample hook for hanging a sample, wherein the stirring assembly is inserted into the high-temperature molten salt in the heating furnace, and one end of the sample hook, on which the sample is hung, is placed into the high-temperature molten salt in the heating furnace. The stirring driving assembly can realize the flow of the molten salt, so that the surface of the metal material is washed, and meanwhile, the metal material is also soaked in the molten salt, so that the corrosion of the molten salt to the high-temperature molten salt heat storage and transfer system under the actual working condition is truly reflected. The invention can safely and conveniently replace the metal material without shutting down the equipment, thereby improving the experimental efficiency.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a high-temperature molten salt dynamic corrosion test device.
Background
In recent years, the application of molten salt is more and more emphasized, and the research on the corrosivity of a high-temperature molten salt heat storage and transfer system becomes a hot spot. Most laboratories are limited to research on corrosion of molten salt to metal materials by adopting static corrosion, the method cannot truly reflect the corrosion condition of the molten salt in a flowing state to a high-temperature molten salt heat storage and transfer system, the high-temperature molten salt heat storage and transfer system is generally made of metal materials, and the static corrosion method cannot simulate the working conditions and experimental limitations: the dynamic scouring effect of the molten salt on the metal material cannot be truly reflected, the influence of the change of the flow speed of the molten salt on the corrosion effect cannot be reflected, and finally, the metal material replacement in the static corrosion experiment is complex in operation and low in safety.
Disclosure of Invention
The invention provides a high-temperature molten salt dynamic corrosion test device for overcoming the problem that no device in the prior art can react dynamic corrosion.
In this technical scheme, a high temperature fused salt dynamic corrosion test device is provided, including the heating furnace that is used for saving high temperature fused salt, be used for stirring the stirring subassembly of the interior high temperature fused salt of heating furnace and be used for hanging the sample couple of establishing the sample, the stirring subassembly inserts in the heating furnace high temperature fused salt, the sample couple is hung the one end of establishing the sample and is put into in the heating furnace high temperature fused salt.
Preferably, the heating furnace is provided with a furnace chamber and a stirring chamber, and the stirring chamber is fixedly arranged in the furnace chamber through a built-in first clamping groove of the furnace chamber.
Preferably, a second clamping groove is formed in the stirring chamber, a hook is arranged on the sample hook, the sample hook is arranged in the stirring chamber, and the hook is fixedly embedded with the second clamping groove.
Preferably, the stirring driving assembly comprises a driving motor, a speed regulation controller, a friction speed change mechanism, a first transmission assembly, a second transmission assembly and a stirring rod which are connected in sequence, and the other end of the stirring rod, which is far away from the second transmission assembly, is arranged in the stirring chamber.
Preferably, the testing device is provided with a connecting arm and a supporting frame which are used for driving the stirring driving assembly to move up and down and left and right, one end of the connecting arm is fixed on the speed regulation controller, and the other end of the connecting arm is movably inserted into the supporting frame through a movable buckle.
Preferably, the testing device is provided with a base and a connecting table, the supporting frame is fixed above the base through the connecting table, and the connecting arm is moved up and down by adjusting the position of the movable buckle on the supporting frame.
Preferably, the heating furnace further comprises a cover plate, the cover plate is arranged at the upper end of the furnace chamber and can seal the furnace chamber, the second transmission assembly is fixedly arranged right above the cover plate, the other end of the stirring rod can penetrate through the cover plate and is connected with the second transmission assembly, and the sample hook is arranged in the stirring chamber through the corresponding first through hole in the cover plate.
Preferably, the first clamping groove is formed in the inner wall of the furnace chamber, and the second clamping groove is formed in the outer wall of the stirring chamber.
Preferably, the number of the first through holes in the cover plate is 5, the size of the first through holes corresponds to that of the sample hooks, and the cover plate is further provided with second through holes for the stirring rods to penetrate through.
Preferably, the base is connected with the lower part of the heating furnace, and the hook is of a foldable structure.
Compared with the prior art, the beneficial effects are:
the stirring driving assembly can realize the flow of the molten salt, so that the surface of the metal material is washed, and meanwhile, the metal material is also soaked in the molten salt, so that the corrosion of the molten salt to the high-temperature molten salt heat storage and transfer system under the actual working condition is truly reflected. The invention can safely and conveniently replace the metal material without shutting down the equipment, thereby improving the experimental efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a high-temperature molten salt dynamic corrosion test device according to the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a top view of a stirring chamber in an embodiment of the invention;
FIG. 5 is a schematic front view of a mixing chamber according to an embodiment of the present invention;
FIG. 6 is a schematic structural view and a front view of a sample hanger hook of an embodiment of the present invention prior to folding the hook;
fig. 7 is a schematic structural view and a front view of a sample hanger hook after folding the hook in an embodiment of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
examples
Fig. 1 to 7 show an embodiment of the high-temperature molten salt dynamic corrosion test apparatus according to the present invention, which includes a heating furnace 14 for storing high-temperature molten salt, a stirring assembly 20 for stirring the high-temperature molten salt in the heating furnace 14, and a sample hanger 9 for hanging a sample, wherein the stirring assembly 23 is inserted into the high-temperature molten salt in the heating furnace 14, and one end of the sample hanger 9, on which the sample is hung, is placed into the high-temperature molten salt in the heating furnace 14.
The heating furnace 14 is provided with a furnace chamber 11 and a stirring chamber 13, and the stirring chamber 13 is fixedly arranged in the furnace chamber 11 through a built-in first clamping groove 113 of the furnace chamber 11.
In addition, a second clamping groove 111 is arranged on the stirring chamber 13, a hook 20 is arranged on the sample hook 9, and one end of the sample hook 9, which is matched with the second clamping groove 111 through the hook 20, is fixedly arranged in the stirring chamber 13.
The stirring driving assembly comprises a driving motor 1, a speed regulation controller 3, a friction speed change mechanism 5, a first transmission assembly 6, a second transmission assembly 7 and a stirring rod 8 which are connected in sequence, and the other end, far away from the second transmission assembly 7, of the stirring rod 8 is arranged in the stirring chamber 13.
The testing device is provided with a connecting arm 19 and a supporting frame 17, wherein the connecting arm 19 is used for driving the stirring driving assembly to move up and down and left and right, the speed regulating controller 3 is fixed on the speed regulating controller 3, and the other end of the connecting arm 19 is movably sleeved with the supporting frame 17 through a movable buckle 18.
In addition, the testing device is provided with a base 15 and a connecting platform 16, a supporting frame 17 is fixed above the base 15 through the connecting platform 16, and the vertical movement of a connecting arm 19 is realized through adjusting the position of a buckle 18 on the supporting frame 17.
The heating furnace 14 further comprises a cover plate 10, the cover plate 10 is arranged at the upper end of the furnace chamber 11 and can seal the furnace chamber 11, the second transmission assembly 7 is fixedly arranged right above the cover plate 10, the other end of the stirring rod 8 can penetrate through the cover plate 10 and is connected with the second transmission assembly 7, and the sample hook 9 is arranged in the stirring chamber 13 through a corresponding first through hole 115 in the cover plate 10.
In addition, the first engaging groove 113 is disposed on the inner wall of the cavity 11, and the second engaging groove 111 is disposed on the outer wall of the mixing chamber 13.
The number of the first through holes 115 on the cover plate 10 is 5, the size of the first through holes 115 corresponds to the size of the sample hook 9, and the cover plate 10 is further provided with a second through hole 114 for the stirring rod 8 to pass through.
Further, a base 15 is connected to a lower portion of the heating furnace 14.
Wherein, the hook 20 is a foldable structure, and the sample hook 9 is provided with a hanging groove 112 after the hook is folded.
Specifically, the method comprises the following steps: the high-temperature molten salt dynamic corrosion test device comprises a heating furnace 14, a sample hook 9, a speed regulation controller 3 and a stirring assembly 23. The heating furnace 14 has a furnace chamber 11. The stirring chamber 13 is embedded in the furnace cavity 11 along the axial direction of the furnace cavity 11; the stirring driving component is arranged right above the heating furnace 14, wherein the stirring rod 8 can be placed in the stirring chamber; the sample hook 9 extends into the stirring chamber through the first through hole 115 of the cover plate, and the hook 20 extends to be embedded with the second clamping groove 111 on the outer wall of the stirring chamber when passing through the through hole.
The sample hanger 9 is provided with a second hanger 21 for hanging the metal material, and the second hanger 21 is placed in the stirring chamber 13.
The embodiment of the invention achieves the purpose of molten salt flowing under the action of the driving assembly of the stirrer, and simultaneously realizes the change of the flow rate of the molten salt through the speed regulation controller 3 and the friction speed change mechanism 5. And the metal sample placed in the stirring chamber 13 through the sample hook 9 is subjected to scouring and soaking corrosion, so that the actual application working condition can be truly reflected. The invention can safely and conveniently sample and maintain the set temperature, thereby achieving the purposes of safety, convenience and energy conservation. Further, the heating furnace 10 of the embodiment of the present invention also provides a heat source for the furnace chamber 11. The temperature in the furnace chamber is real-time reacted by a thermocouple in the furnace chamber 11, so that the effect of constant temperature is achieved.
The stirring drive is composed of a drive motor 1, a speed regulation controller 3, a friction speed regulation control mechanism 5, a first transmission component 6 and a second transmission component 7. Wherein, one end of the stirring rod 8 is provided with the stirring blade 12 and is arranged in the stirring chamber through the second through hole 114 of the cover plate, and the other end is arranged outside the stirring chamber. The first transmission assembly 6 and the second transmission assembly 7 are fixed below the friction speed change mechanism 5 and connected with the other end of the stirring rod 8. The driving motor 1, the connecting table 2, the speed regulation controller 3, the separating table 4, the friction speed change mechanism 5, the first transmission assembly 6 and the second transmission assembly 7 are sequentially connected from top to bottom.
As shown in fig. 1, 2 and 3, a cover plate 10 is disposed at an upper end of a heating furnace 14, the cover plate 10 is movable, and the cover plate 10 can well seal the furnace chamber and has good heat insulation performance. The stirring rod 8 and the sample hook 9 penetrate through the corresponding second through hole 114 and the corresponding first through hole 115 on the cover plate 10 to enter the heating furnace 10, and the stirring rod 8 and the sample hook 9 are exactly in sealing butt joint with the second through hole 114 and the first through hole 115 respectively to have good sealing performance. The other end of the stirring rod 8 is connected with the transmission component 7.
As shown in fig. 1 and 2, the device of the present invention further includes a support frame 17, a movable buckle 18, and a connecting arm 19. The support frame 17 is fixed above the base 15 through a support frame connecting table 16. One end of the connecting arm 19 is connected with the supporting frame through the movable buckle 18, and the other end is fixed on the speed regulation controller 3. The position adjustment of the driving stirring device is realized through the connecting rod 19 and the movable buckle 18.
The driving motor 1 is fixed above the speed regulation controller 3 through the connecting table 2, and the friction speed change mechanism 5 is fixed below the speed regulation controller 3 through the separating table. By rotating the friction speed change mechanism 5, the speed regulation range of the speed regulation controller 3 is changed from low-middle speed to medium-middle speed.
As shown in fig. 5, the outer wall of the oven cavity 11 is provided with a second clamping groove 111 for mounting the sample hook 9. When the sample hook 9 passes through the cover plate 10, the hook positioned above the sample hook can stretch and open, and is fixedly embedded with the second clamping groove 111. The lower second hook 21 is used to hang the metal material.
The sample hook 9 of the device has the following functions: the experimental sample can be suspended in the molten salt; and the replacement of metal materials can be realized when the test device works and runs.
When the experiment is carried out, firstly, the stirring rod 8 and the sample hook 9 penetrate through the cover plate 10, the stirring blade 12 is installed at the lower end of the stirring rod 8, the depth of the stirring blade in molten salt is realized through the movable buckle 18, finally, the experiment hook 20 is embedded and fixed with the second clamping groove 111 of the stirring chamber 13, and the adjusting cover plate 10 is in sealing butt joint with the heating furnace 14. Further, the flow of the molten salt liquid is realized by the stirring blade 12, thereby washing the metal material placed on the second hook 21.
In conclusion, the invention shows the following technical effects that the flow of the molten salt can be realized by stirring and driving, so that the dynamic scouring of the molten salt on the metal material is realized, the actual working condition is truly reflected, the metal material replacement is safely and conveniently realized through the sample hook 9, and the set temperature can be maintained.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a high temperature fused salt dynamic corrosion test device, its characterized in that, including heating furnace (14) that are used for saving high temperature fused salt, be used for stirring subassembly (23) of high temperature fused salt in heating furnace (14) and be used for placing sample couple (9), stirring subassembly (23) insert in heating furnace (14) high temperature fused salt, sample couple (9) are hung the one end of establishing the sample and are put into in heating furnace (14) high temperature fused salt.
2. The high-temperature molten salt dynamic corrosion test device according to claim 1, wherein the heating furnace (14) is provided with a furnace chamber (11) and a stirring chamber (13) for storing the high-temperature molten salt, and the stirring chamber (13) is fixedly arranged in the furnace chamber (11) through a built-in first clamping groove (113) of the furnace chamber (11).
3. The high-temperature molten salt dynamic corrosion test device according to claim 2, wherein a second clamping groove (111) is formed in the stirring chamber (13), a hook (20) is formed in the sample hook (9), the sample hook (9) is arranged in the stirring chamber (13), and the hook (20) is fixedly embedded with the second clamping groove (111).
4. The high-temperature molten salt dynamic corrosion test device according to claim 2 or 3, wherein the stirring driving assembly comprises a driving motor (1), a speed regulation controller (3), a friction speed change mechanism (5), a first transmission assembly (6), a second transmission assembly (7) and a stirring rod (8) which are connected in sequence, and a stirring blade (12) is arranged at the other end, far away from the second transmission assembly (7), of the stirring rod (8) and is arranged in the stirring chamber (13).
5. The high-temperature molten salt dynamic corrosion test device according to claim 1, wherein the test device is provided with a connecting arm (19) and a support frame (17) which are used for driving the stirring driving assembly to move up and down and left and right, one end of the connecting arm (19) is fixed on the speed regulation controller (3), and the other end of the connecting arm (19) is movably inserted into the support frame (17) through a movable buckle (18).
6. The high-temperature molten salt dynamic corrosion test device according to claim 5, wherein the test device is provided with a base (15) and a connecting table (16), the supporting frame (17) is fixed above the base (15) through the connecting table (16), and the up-and-down movement of the connecting arm (19) is realized by adjusting the position of the movable buckle (18) on the supporting frame (17).
7. The high-temperature molten salt dynamic corrosion test device according to claim 4, wherein the heating furnace (14) further comprises a cover plate (10), the cover plate (10) covers the furnace chamber (11), the second transmission assembly (7) is fixedly arranged above the cover plate (10), the stirring rod (8) penetrates through the cover plate (10) and is arranged in the stirring chamber (13), and the sample hook (9) is arranged in the stirring chamber (13) through a corresponding first through hole (115) in the cover plate (10).
8. The high-temperature molten salt dynamic corrosion test device according to claim 3, wherein the first clamping groove (113) is formed in the inner wall of the furnace chamber (11), and the second clamping groove (111) is formed in the outer wall of the stirring chamber (13).
9. The high-temperature molten salt dynamic corrosion test device according to claim 7, wherein the number of the first through holes (115) in the cover plate (10) is 5, the size of the first through holes (115) corresponds to that of the sample hooks (9), and the cover plate (10) is further provided with second through holes (114) for the stirring rods (8) to pass through.
10. A high-temperature molten salt dynamic corrosion test device as claimed in claim 6, wherein the base (15) is connected with a heating furnace (14), and the hook (20) is of a foldable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911038444.3A CN110823790A (en) | 2019-10-29 | 2019-10-29 | High-temperature molten salt dynamic corrosion test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911038444.3A CN110823790A (en) | 2019-10-29 | 2019-10-29 | High-temperature molten salt dynamic corrosion test device |
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| CN110823790A true CN110823790A (en) | 2020-02-21 |
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| CN201911038444.3A Pending CN110823790A (en) | 2019-10-29 | 2019-10-29 | High-temperature molten salt dynamic corrosion test device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205786242U (en) * | 2016-05-25 | 2016-12-07 | 天津市融融金属制品有限公司 | Novel stainless steel part corrosion resistance test device |
| CN108414429A (en) * | 2018-02-07 | 2018-08-17 | 河海大学 | A kind of microorganism attachment experimental method and device |
| CN207832551U (en) * | 2017-12-30 | 2018-09-07 | 振石集团东方特钢有限公司 | A kind of mancarried device for ultralow temperature impact test |
| CN109238954A (en) * | 2018-10-31 | 2019-01-18 | 中国特种设备检测研究院 | Simulate fused salt dynamic corrosion test device |
| CN213209858U (en) * | 2019-10-29 | 2021-05-14 | 中山大学 | High-temperature molten salt dynamic corrosion test device |
-
2019
- 2019-10-29 CN CN201911038444.3A patent/CN110823790A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205786242U (en) * | 2016-05-25 | 2016-12-07 | 天津市融融金属制品有限公司 | Novel stainless steel part corrosion resistance test device |
| CN207832551U (en) * | 2017-12-30 | 2018-09-07 | 振石集团东方特钢有限公司 | A kind of mancarried device for ultralow temperature impact test |
| CN108414429A (en) * | 2018-02-07 | 2018-08-17 | 河海大学 | A kind of microorganism attachment experimental method and device |
| CN109238954A (en) * | 2018-10-31 | 2019-01-18 | 中国特种设备检测研究院 | Simulate fused salt dynamic corrosion test device |
| CN213209858U (en) * | 2019-10-29 | 2021-05-14 | 中山大学 | High-temperature molten salt dynamic corrosion test device |
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