CN114113272B - Test model for actively controlling weak electrolyte solution to flow by electromagnetic force - Google Patents
Test model for actively controlling weak electrolyte solution to flow by electromagnetic force Download PDFInfo
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- CN114113272B CN114113272B CN202111395865.9A CN202111395865A CN114113272B CN 114113272 B CN114113272 B CN 114113272B CN 202111395865 A CN202111395865 A CN 202111395865A CN 114113272 B CN114113272 B CN 114113272B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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Abstract
The invention relates to the field of ship and ocean engineering, in particular to a test model for actively controlling weak electrolyte solution to flow by electromagnetic force, which comprises a cylindrical core body, wherein the cylindrical core body is divided into an active section and an inactive section; the outer side surface of the active section part of the cylindrical core body is uniformly provided with magnetic poles along the circumferential direction of the active section part, and electrodes are arranged between two adjacent magnetic poles; each electrode is connected with a power wire, and one end of the cylindrical core body far away from the power wire is connected with a signal generator. According to the invention, the magnetic pole can be magnetized axially through the electrode, at the moment, the signal generator generates electromagnetic signals and synchronously collects the electromagnetic signals, and then the data processing is carried out through the PC end communicated with the signal generator, so that Lorentz force generated by an electromagnetic field can be obtained, and further, the data analysis and calculation of actively controlling the flow of weak electrolyte solution through electromagnetic force are carried out.
Description
Technical Field
The invention relates to the field of ship and ocean engineering, in particular to a test model for actively controlling weak electrolyte solution to flow by electromagnetic force.
Background
Cylindrical structures such as marine risers, oil and gas pipelines and the like are widely applied to marine engineering. When ocean currents flow through the structure, vortex-induced vibration phenomenon can be caused by the flowing around of the surface of the structure, fatigue failure phenomenon can be generated, and the safety of the ocean engineering structure is seriously influenced. To prevent and address the hazards that may be posed, there is an urgent need to enhance research on control of flow separation in cylindrical structures.
The flow separation on the surface of the cylindrical structure is effectively controlled, so that the resistance can be reduced, the lifting force can be restrained, and the cylindrical structure is one of important ways for improving the structural safety.
At present, researches on the flow separation of the surface of a cylinder are mainly focused on the aspect of passive control, and few experimental researches related to the active control of the flow of weak electrolyte solution by electromagnetic force are available.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a test model for actively controlling the flow of weak electrolyte solution by electromagnetic force, which can effectively control the structure of a cylindrical flow field around, thereby achieving the purposes of reducing resistance and inhibiting the pulsation amplitude of rising resistance; thereby providing reliable theoretical basis and technical guarantee for the active control of the flow field around the underwater vehicle in the real sea area.
In order to achieve the above purpose, the invention provides a test model for actively controlling weak electrolyte solution flow by electromagnetic force, which comprises a cylindrical core body, wherein the cylindrical core body is of a hollow cylindrical structure and is divided into an active section and an inactive section; the middle section part of the cylindrical core body is an active section, and the two end parts of the cylindrical core body are inactive sections; the active section part of the cylindrical core is provided with magnetic poles along the circumferential direction, electrodes are arranged between two adjacent magnetic poles, the inactive section of the cylindrical core is respectively connected with a glass sleeve, one end of each electrode extends to one of the glass sleeves, each electrode is respectively connected with a power supply wire, and one end of the cylindrical core, which is far away from the power supply wire, is connected with a signal generator.
The active section lateral surface of cylindrical core is provided with the milling flutes along its circumference equidistant, and the one end that the magnetic pole is close to cylindrical core inserts and establishes in the milling flutes, and is insulating cooperation between magnetic pole and the electrode.
Preferably, gaskets made of insulating materials are inserted between the electrodes and the adjacent magnetic poles, and the electrodes are divided into conductive parts and insulating parts.
Preferably, the insulating part of one side of the electrode, which is close to the cylindrical core body, is made of organic glass, the conducting part of the other side of the electrode is a stainless steel conducting layer, and the stainless steel conducting layer of the electrode is arranged on the glass sleeve in a building mode.
Preferably, the surface of the cylindrical core body is subjected to corrosion prevention and insulation treatment, the electrode and the magnetic pole are combined to form a cylindrical structure, and the cylindrical structure and the cylindrical core body are coaxially arranged.
Preferably, the magnetic pole material is N48H or a permanent magnetic material with the magnetic field intensity equivalent to that of the magnetic pole material.
When the test model is used for testing, the power supply lead is firstly controlled to be electrified, the magnetic poles are axially magnetized through the electrodes, at the moment, the signal generator generates electromagnetic signals and synchronously collects the electromagnetic signals, then the data processing is carried out through the PC end communicated with the signal generator, lorentz force generated by the electromagnetic field can be obtained, and further data analysis and calculation of the flow of the weak electrolyte solution are carried out under the active control of the electromagnetic force.
Preferably, the electrode and the magnetic pole are inserted in the outer side of the cylindrical core body by adopting a circulating type alignment plugging device, the circulating type alignment plugging device comprises a bottom plate, a bearing table and a rotating mechanism, the bearing table for supporting the cylindrical core body is arranged on the upper side surface of the middle part of the bottom plate, and the left end and the right end of the bottom plate are connected with the rotating mechanism for locking the cylindrical core body.
Preferably, the rotating mechanism comprises a sliding sleeve, a locking ring and a centering column, the sliding sleeve is sleeved on the outer side of the cylindrical core, the centering column is arranged on the side wall of one end of the sliding sleeve, which is far away from the cylindrical core, the locking ring is rotationally connected with the inner wall of the other end of the centering column, the locking ring is locked on the inactive section of the cylindrical core through a locking buckle, the sliding plate is arranged at the lower end of the sliding sleeve and connected to the upper side surface of the bottom plate in a sliding fit manner, and an adjusting component for synchronously adjusting the distance between the sliding plates on the two rotating mechanisms is arranged on the upper side surface of the bottom plate.
Preferably, the length of bearing platform is greater than the length of the active section of cylindrical core, the both ends of bearing platform all are provided with and put the body, bearing platform is arc structure, bearing platform's upside is echelonment cambered surface structure for bearing platform's upside forms a plurality of arc surfaces of different radiuses, and the receipts groove has all been seted up on every arc surface of bearing platform echelonment, and receive and release inslot is provided with the top and stretches the board, installs the extrusion bullet post on the top and stretches the board, and the extrusion bullet post passes bearing platform, and the one end that the extrusion bullet post is located the bearing platform outside installs the gangboard, bearing platform arc surface place the axial lead and the axial lead of the cover of sliding, the axial lead of counterpoint post all coincide.
Preferably, the sliding sleeve and the locking ring are respectively provided with an arc groove and an arc sliding block which are in sliding fit with each other, the arc sliding block is provided with a ball of a telescopic structure, the inner wall of the arc groove is provided with a hemispherical clamping groove which is matched with the ball, the side surface of the locking ring corresponding to the middle part of the bottom plate is provided with a swivel, the swivel is provided with a poking rod at equal intervals, and the poking rod extends to the outer end of the linkage plate.
Preferably, the upper side of the top extension plate is flush with the supporting table, the thicknesses of the linkage plates corresponding to each arc-shaped surface of the supporting table are different, the larger the radius of the arc-shaped surface of the supporting table is, the smaller the thickness of the linkage plates is, and the two ends of the linkage plates are of a trapezoid structure.
The invention has the beneficial effects that:
1. the test model consists of a cylindrical core body, an insulating gasket, magnetic poles, electrodes, a power supply lead, a signal generator and other devices, can realize axial magnetization of the magnetic poles, and can acquire and analyze magnetic signals generated by the magnetic poles so as to deduce data of actively controlling the flow of weak electrolyte solution by electromagnetic force, and has convenient operation and high feasibility; in addition, the test model can effectively control the structure of the cylindrical flow-around field, thereby achieving the purposes of reducing resistance and inhibiting the rising resistance pulsation amplitude; and further provides reliable theoretical basis and technical guarantee for active control of the flow field around the underwater vehicle in the real sea area.
2. The invention also provides a circulating alignment plugging device for plugging the electrode and the magnetic pole, wherein arc surfaces with different radiuses on the supporting table on the plugging device can be used for carrying out multistage correction on the positions of the electrode and the magnetic pole, so that the phenomenon of inaccurate post test data caused by inaccurate positions of the electrode and the magnetic pole due to falling-off of the electrode and the magnetic pole is prevented.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of a test model for actively controlling the flow of weak electrolyte solution by electromagnetic force according to the present invention.
Fig. 2 is a sectional view taken along the direction B-B in fig. 1.
Fig. 3 is a cross-sectional view taken along line C-C of fig. 1.
FIG. 4 is a first schematic view of the cyclic alignment plug device of the present invention;
FIG. 5 is a second schematic view of the cyclic alignment plug device of the present invention;
FIG. 6 is a cross-sectional view of a rotating mechanism in the cyclic alignment hub of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at A;
fig. 8 is a cross-sectional view of a support table in the cyclic alignment plug device of the present invention.
In the figure: 1. a cylindrical core; 2. an electrode; 3. a magnetic pole; 4. a glass sleeve; 5. a power supply wire; 6. a signal generator; 7. a bottom plate; 8. a support table; 9. a rotating mechanism; 21. a gasket; 71. an adjustment assembly; 81. a stacking body; 82. a winding and unwinding groove; 83. a top extension plate; 84. extruding the spring column; 85. a linkage plate; 91. a slip sleeve; 92. a locking ring; 93. a positioning column; 94. a slip plate; 95. an arc-shaped sliding block; 96. a ball; 97. a swivel; 98. a toggle rod; 99. and (5) locking buckles.
Detailed Description
The invention is further described with reference to the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand. It should be noted that embodiments and features of embodiments in this application may be mutually engaged without conflict.
Referring to fig. 1-3, a test model for actively controlling weak electrolyte solution flow by electromagnetic force comprises a cylindrical core body 1, wherein the cylindrical core body 1 is of a hollow cylindrical structure, and the cylindrical core body 1 is divided into an active section and an inactive section; the middle section part of the cylindrical core body 1 is an active section, and the two end parts of the cylindrical core body 1 are inactive sections; the outer side surface of the active section part of the cylindrical core body 1 is uniformly provided with magnetic poles 3 along the circumferential direction, and the magnetic poles 3 are made of N48H or permanent magnetic materials with the magnetic field intensity equivalent to that of the magnetic poles; an electrode 2 is arranged between two adjacent magnetic poles 3, the surface of the cylindrical core body 1 is subjected to corrosion prevention and insulation treatment, the electrode 2 and the magnetic poles 3 are combined to form a cylindrical structure, and the cylindrical structure and the cylindrical core body 1 are coaxially arranged; the position of the inactive section of the cylindrical core body 1 is respectively connected with a glass sleeve 4, one end of each electrode 2 extends to one of the glass sleeves 4, each electrode 2 is respectively connected with a power wire 5, and one end of the cylindrical core body 1 far away from the power wire 5 is connected with a signal generator 6.
In the embodiment, the axial length of the cylindrical core body 1 is 500mm, the length of the active section of the cylindrical core body 1 is 300mm, the lengths of the inactive sections of the cylindrical core body 1 are 100mm,
milling grooves are formed in the outer side face of the active section of the cylindrical core body 1 at equal intervals along the circumferential direction of the active section, one end, close to the cylindrical core body 1, of each magnetic pole 3 is inserted into each milling groove, the magnetic poles 3 are in insulating fit with the electrodes 2, the outer diameter of the cylindrical core body 1 is 70mm, and the wall thickness is 15mm; the number of milling grooves is 32, the width of the milling grooves is 5mm, the length of the milling grooves is 300mm, and the depth of the milling grooves is 3mm; the length of the magnetic pole 3 is 50mm, the width is 5mm, and the thickness is 18mm.
Referring to fig. 2, a spacer 21 made of insulating material is inserted between the electrode 2 and the adjacent magnetic pole 3, and the electrode 2 is divided into a conductive part and an insulating part; the insulating part of one side of the electrode 2, which is close to the cylindrical core body 1, is made of organic glass, the conducting part of the other side of the electrode 2 is a stainless steel conducting layer, and the stainless steel conducting layer of the electrode 2 is arranged on the glass sleeve 4.
Referring to fig. 1, when the test model is used for testing, the power supply wire 5 is controlled to be electrified, the magnetic pole 3 is axially magnetized through the electrode 2, the signal generator 6 generates electromagnetic signals and synchronously collects the electromagnetic signals, and then the data processing is performed through the PC end communicated with the signal generator 6, so that Lorentz force generated by the electromagnetic field can be obtained, and further data analysis and calculation of actively controlling the flow of weak electrolyte solution by electromagnetic force can be performed.
Referring to fig. 4-5, the electrode 2 and the magnetic pole 3 are inserted and arranged at the outer side of the cylindrical core 1 by adopting a cyclic alignment plugging device, the cyclic alignment plugging device comprises a bottom plate 7, a bearing table 8 and a rotating mechanism 9, the bearing table 8 for supporting the cylindrical core 1 is arranged at the upper side surface of the middle part of the bottom plate 7, the rotating mechanism 9 for locking the cylindrical core 1 is connected to the left end and the right end of the bottom plate 7, the cylindrical core 1 is firstly placed on the bearing table 8, the position of the cylindrical core 1 is aligned and locked by the rotating mechanism 9, then the magnetic pole 3 is manually inserted and arranged in a milling groove of the cylindrical core 1, the electrode 2 is inserted and arranged between the adjacent magnetic poles 3 by a gasket 21, and then the rotating mechanism 9 can drive the cylindrical core 1 to synchronously rotate, so that the inserted and completed part of the cylindrical core 1 can be compacted by the bearing table 8, and the phenomenon of inaccurate post test data caused by inaccurate positions of the electrode 2 and the magnetic pole 3, which are fallen off is prevented.
Referring to fig. 5-6, the rotation mechanism 9 includes a sliding sleeve 91, a locking ring 92, and a positioning column 93, where the sliding sleeve 91 is sleeved on the outer side of the cylindrical core 1, the positioning column 93 is disposed on a side wall of one end of the sliding sleeve 91 away from the cylindrical core 1, the locking ring 92 is rotatably connected to the inner wall of the other end of the positioning column 93, the locking ring 92 is locked on an inactive section of the cylindrical core 1 by a locking buckle 99, in this embodiment, the locking buckle 99 includes a transverse plate symmetrically installed on the locking ring 92, a clamping bolt is connected to the transverse plate in a threaded fit manner, one end of the clamping bolt corresponding to the cylindrical core 1 is rotatably connected with a locking arc plate, the locking arc plate can be locked on the outer side surface of the cylindrical core 1 by screwing the clamping bolt, so that the rotation of the locking ring 92 can synchronously drive the cylindrical core 1 to rotate, the lower end of the sliding sleeve 91 is provided with a sliding plate 94, the sliding plate 94 is connected to the upper side surface of the bottom plate 7 in a sliding fit manner, the upper side surface of the bottom plate 7 is provided with an adjusting component 71 for synchronously adjusting the distance between the sliding plates 94 on the two rotating mechanisms 9, the adjusting component 71 is a bidirectional screw, thread sections of the bidirectional screw are respectively connected to the sliding plate 94 in a threaded connection manner, the middle part of the bidirectional screw is fixed on the middle part of the bottom plate 7 through a fixed block, one end of the bidirectional screw is connected with the upper side surface of the bottom plate 7 through a rotating support plate, the other end of the bidirectional screw is provided with a rotating handle, the sliding plate 94 can be driven to synchronously move inwards and outwards through manual rotation, so that a positioning column 93 can be inserted into the cylindrical core 1, and then the cylindrical core 1 can be locked on the locking ring 92 through a locking buckle 99, so that the locking ring 92 brings the cylindrical core 1 into synchronous rotation.
Referring to fig. 8, the length of the supporting table 8 is greater than the length of the active section of the cylindrical core 1, both ends of the supporting table 8 are provided with stacking bodies 81, the supporting table 8 is in an arc structure, the upper side surface of the supporting table 8 is in a stepped arc structure, a plurality of arc surfaces with different radiuses are formed on the upper side surface of the supporting table 8, a folding groove 82 is formed in each arc surface of the supporting table 8 in a stepped manner, a top extending plate 83 is arranged in the folding groove 82, an extrusion elastic column 84 is arranged on the top extending plate 83, the extrusion elastic column 84 penetrates through the supporting table 8, one end of the extrusion elastic column 84 located outside the supporting table 8 is provided with a linkage plate 85, and when the cylindrical core 1 is placed on the supporting table 8, the cylindrical core 1 can be stacked on the stacking bodies 81, and the cylindrical core 1 is not contacted with the arc structure of the supporting table 8.
Referring to fig. 6-7, the sliding sleeve 91 and the locking ring 92 are respectively provided with an arc groove and an arc slide block 95 which are in sliding fit with each other, the arc slide block 95 is provided with a ball 96 with a telescopic structure, the inner wall of the arc groove is provided with a hemispherical clamping groove which is matched with the ball 96, the side surface of the locking ring 92 corresponding to the middle part of the bottom plate 7 is provided with a rotating ring 97, the rotating ring 97 is provided with a poking rod 98 at equal intervals, the poking rod 98 extends to the outer end of the linkage plate 85, when the cylindrical core 1 is locked and the electrode 2 and the magnetic pole 3 are required to be inserted, firstly, the milling groove area above the cylindrical core 1 is used for inserting the electrode 2 and the magnetic pole 3, after the insertion is completed, the adjacent area is continuously inserted, the rotating ring 97 can be completed, the ball 96 can be propped against the hemispherical clamping groove of the arc groove after each rotation, the electrode 2 and the magnetic pole 3 can be prevented from rotating at will, the cylindrical core 1 can not rotate, and the inserted electrode 2 and the electrode 3 can enter the linkage plate 8, when the cylindrical core 2 and the supporting rod 3 are inserted into the bearing 8, the bearing 8 can be separated from the radial surface of the arc plate 8, the electrode 2 and the magnetic pole 3 can be separated from the linkage plate 85, and the electrode 3 can be pushed to the linkage plate 2 and the magnetic pole 3, the electrode 3 can be separated from the linkage plate 85, and the position of the electrode plate can be pushed and the electrode plate 85 can be pushed and the opposite to the position of the magnetic pole 3, the electrode plate can be separated, the position of the electrode plate and the electrode plate can 3.
Referring to fig. 8, the upper side of the top extension plate 83 is flush with the support table 8, the thickness of the linkage plate 85 corresponding to each stepped arc surface on the support table 8 is different, the larger the radius of each stepped arc surface on the support table 8 is, the smaller the thickness of the linkage plate 85 is, the two ends of the linkage plate 85 are both in a trapezoid structure, the larger the thickness of the linkage plate 85 is, the larger the pushing force of the top extension plate 83 to the electrode 2 and the magnetic pole 3 is, and the trapezoid structure on the linkage plate 85 prevents the toggle rod 98 from abutting on the side surface thereof, so that the phenomenon that the toggle rod 98 cannot rotate is caused.
The invention discloses a circulating type contraposition plug-in device, which comprises the following steps that a counter electrode 2 and a magnetic pole 3 are inserted and arranged on a cylindrical core body 1:
the first step: firstly, the cylindrical core body 1 is placed on the bearing table 8, the cylindrical core body 1 is placed on the placing body 81, and then the sliding plate 94 can be driven to synchronously move inwards and outwards by manually rotating the handle, so that the alignment column 93 can be inserted into the cylindrical core body 1, and the position of the cylindrical core body 1 is positioned.
And a second step of: after the positioning of the cylindrical core body 1 is finished, the cylindrical core body 1 can be locked on the locking ring 92 through the locking buckle 99, so that the locking ring 92 drives the cylindrical core body 1 to synchronously rotate, then the electrode 2 and the magnetic pole 3 are inserted in a milling groove area above the cylindrical core body 1, after the insertion of the area is finished, the rotating ring 97 is rotated, the adjacent area is continuously inserted after the insertion is finished, the electrode 2 and the magnetic pole 3 can be inserted in a circulating manner, the balls 96 can be abutted in a hemispherical clamping groove of an arc groove after each rotation of the rotating ring 97, and the cylindrical core body 1 can not rotate randomly when the electrode 2 and the magnetic pole 3 are inserted.
And a third step of: after the inserted electrode 2 and magnetic pole 3 enter the bearing table 8, the arc surfaces with different radiuses of the bearing table 8 can carry out multistage correction on the positions of the electrode 2 and the magnetic pole 3, and in the rotating process of the swivel 97, the toggle rod 98 is contacted with the linkage plate 85 to pull the electrode 2 and the magnetic pole 3 outwards, and the push-extension plate 83 can push the electrode 2 and the magnetic pole 3 under the action of the extrusion spring column 84 when the toggle rod 98 is separated from the linkage plate 85, so that the electrode 2 and the magnetic pole 3 are installed in place.
Fourth step: after the electrode 2 and the magnetic pole 3 are inserted, the locking buckle 99 is controlled to unlock the cylindrical core body 1, and the sliding sleeve 91 is adjusted to the initial position through the adjusting component 71, so that the inserted cylindrical core body 1 can be taken out.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, and that the foregoing embodiments and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications fall within the scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The experimental model for actively controlling the flow of weak electrolyte solution by electromagnetic force is characterized by comprising a cylindrical core body (1), wherein the cylindrical core body (1) is of a hollow cylindrical structure, and the cylindrical core body (1) is divided into an active section and an inactive section; the middle section part of the cylindrical core body (1) is an active section, and the two end parts of the cylindrical core body (1) are inactive sections; the active section of the cylindrical core body (1) is provided with magnetic poles (3) uniformly along the circumferential direction of the active section, electrodes (2) are arranged between two adjacent magnetic poles (3), the positions of the inactive sections of the cylindrical core body (1) are respectively connected with glass sleeves (4), one ends of the electrodes (2) extend to one of the glass sleeves (4), each electrode (2) is respectively connected with a power wire (5), and one end, far away from the power wire (5), of the cylindrical core body (1) is connected with a signal generator (6);
milling grooves are formed in the outer side face of the active section of the cylindrical core body (1) at equal intervals along the circumferential direction of the active section, one end, close to the cylindrical core body (1), of the magnetic pole (3) is inserted into the milling grooves, and the magnetic pole (3) is in insulation fit with the electrode (2);
when the test model is used for testing, the power supply lead (5) is controlled to be electrified, the magnetic pole (3) is magnetized axially through the electrode (2), at the moment, the signal generator (6) generates electromagnetic signals and synchronously collects the electromagnetic signals, and then the data processing is carried out through the PC end communicated with the signal generator (6), so that Lorentz force generated by an electromagnetic field can be obtained, and further data analysis and calculation of the flow of weak electrolyte solution under active control of the electromagnetic force are carried out;
the electrode (2) and the magnetic pole (3) are inserted and arranged on the outer side of the cylindrical core body (1) by adopting a circulating type alignment and plug-in device, the circulating type alignment and plug-in device comprises a bottom plate (7), a bearing table (8) and a rotating mechanism (9), the bearing table (8) for supporting the cylindrical core body (1) is arranged on the upper side surface of the middle part of the bottom plate (7), and the rotating mechanism (9) for locking the cylindrical core body (1) is connected with the left end and the right end of the bottom plate (7);
the length of the bearing table (8) is greater than that of the active section of the cylindrical core body (1), the two ends of the bearing table (8) are provided with stacking bodies (81), the bearing table (8) is of an arc structure, the upper side surface of the bearing table (8) is of a stepped arc structure, a plurality of arc surfaces with different radiuses are formed on the upper side surface of the bearing table (8), a folding and unfolding groove (82) is formed in each arc surface of the bearing table (8), a jacking plate (83) is arranged in each folding and unfolding groove (82), an extrusion elastic column (84) is arranged on each jacking plate (83), one end of each extrusion elastic column (84) located outside the bearing table (8) is provided with a linkage plate (85), and the axial lead of the arc surface of the bearing table (8) coincides with the axial lead of the sliding sleeve (91) and the axial lead of the aligning column (93);
the side of locking ring (92) corresponding bottom plate (7) middle part is provided with swivel (97), is provided with on swivel (97) equidistant stirring rod (98), and stirring rod (98) extend to the outer end of linkage board (85).
2. The test model for actively controlling weak electrolyte solution flow by electromagnetic force according to claim 1, wherein: gaskets (21) made of insulating materials are inserted between the electrodes (2) and the adjacent magnetic poles (3), and the electrodes (2) are divided into conductive parts and insulating parts.
3. The test model for actively controlling weak electrolyte solution flow by electromagnetic force according to claim 2, wherein: the insulating part of one side of the electrode (2) close to the cylindrical core body (1) is made of organic glass, the conducting part of the other side of the electrode (2) is a stainless steel conducting layer, and the stainless steel conducting layer of the electrode (2) is arranged on the glass sleeve (4).
4. The test model for actively controlling weak electrolyte solution flow by electromagnetic force according to claim 1, wherein: the surface of the cylindrical core body (1) is subjected to corrosion prevention and insulation treatment, the electrode (2) and the magnetic pole (3) are combined to form a cylindrical structure, and the cylindrical structure and the cylindrical core body (1) are coaxially arranged.
5. The test model for actively controlling weak electrolyte solution flow by electromagnetic force according to claim 1, wherein: the magnetic pole (3) is made of N48H or a permanent magnetic material with the magnetic field intensity equivalent to that of the magnetic pole.
6. The test model for actively controlling weak electrolyte solution flow by electromagnetic force according to claim 1, wherein: the rotating mechanism (9) comprises a sliding sleeve (91), a locking ring (92) and a centering column (93), the sliding sleeve (91) is sleeved on the outer side of the cylindrical core body (1), the centering column (93) is arranged on the side wall of one end of the sliding sleeve (91) away from the cylindrical core body (1), the locking ring (92) is rotationally connected with the inner wall of the other end of the centering column (93), the locking ring (92) is locked on an inactive section of the cylindrical core body (1) through a locking buckle (99), a sliding plate (94) is arranged at the lower end of the sliding sleeve (91), the sliding plate (94) is connected to the upper side face of the bottom plate (7) in a sliding fit mode, and an adjusting component (71) for synchronously adjusting the distance between the sliding plates (94) on the two rotating mechanisms (9) is arranged on the upper side face of the bottom plate (7).
7. The test model for actively controlling weak electrolyte solution flow by electromagnetic force according to claim 1, wherein: the sliding sleeve (91) and the locking ring (92) are respectively provided with an arc-shaped groove and an arc-shaped sliding block (95) which are in sliding fit with each other, the arc-shaped sliding block (95) is provided with a ball (96) of a telescopic structure, and the inner wall of the arc-shaped groove is provided with a hemispherical clamping groove which is matched with the ball (96).
8. The test model for actively controlling weak electrolyte solution flow by electromagnetic force according to claim 1, wherein: the upper side of top extension board (83) flushes with bearing platform (8), and the thickness of linkage board (85) that every arcwall face of echelonment corresponds on bearing platform (8) is all different, and the radius of arcwall face of echelonment is bigger on bearing platform (8), and the thickness of linkage board (85) is littleer, and the both ends of linkage board (85) are trapezium structure.
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