CN112834166A - Tracer particle releasing device suitable for liquid flow field - Google Patents
Tracer particle releasing device suitable for liquid flow field Download PDFInfo
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- CN112834166A CN112834166A CN202110014376.8A CN202110014376A CN112834166A CN 112834166 A CN112834166 A CN 112834166A CN 202110014376 A CN202110014376 A CN 202110014376A CN 112834166 A CN112834166 A CN 112834166A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a tracer particle throwing device suitable for a liquid flow field, which comprises a throwing box, wherein the throwing box is of a barrel-shaped structure; the valve combiner is connected to one end, close to the liquid flow field, of the throwing box and comprises a plurality of valve groups; the method comprises the following steps: the valve control gear set is arranged at one end of the throwing box, which is far away from the liquid flow field; the valve control gear set includes: one end of the adjusting knob is sleeved with a gear; the gear ring is meshed with the gear of the adjusting knob; one end of each winding post is sleeved with a small gear, and the small gear is meshed with the gear ring; one ends of a plurality of strings are fixed on the wrapping posts, the other ends of the strings are respectively connected with a plurality of valve groups in the valve combiner, and the valve control gear group pulls the strings through the wrapping posts to control the opening and closing of the valve combiner. The invention can control and adjust the concentration of trace particles in the fed fluid.
Description
Technical Field
The invention particularly relates to a tracer particle feeding device suitable for a liquid flow field.
Background
At present, when the liquid flow field (mostly water flow field) is measured, the tracer particles are put in and are put in manually, a small number of tracer particles are put in and are put in the device (high-pressure type drive) similar to the gas flow field, but the tracer particles under the high-pressure action will have a larger initial velocity to enter the flow field, so that a larger error can be caused to the measurement, and the test instrument is more complex.
Comparison document 1: chinese patent publication CN105890871A, published japanese 2160824, discloses a tracer particle feeding device for liquid flow field PIV measurement. The device comprises a flow field liquid inlet pipeline, a mixing cavity, a feeding window and a flow field liquid outlet pipeline, can uniformly spread tracer particles in a measured flow field, and can quickly, effectively and continuously adjust the concentration of particles in the flow field by adding the tracer particles or flow field liquid in the feeding window.
However, the device in the comparison document 1 has the defects that the trace particles are difficult to be mixed uniformly, so that the concentration of the newly added trace particles is high, and the feeding is not uniform, so that the experiment precision is influenced; another disadvantage of the comparison document 1 is that the application range is small, and the communication pipeline is needed to be able to function, and the comparison document has no universality.
Comparison document 2: chinese patent publication CN105403729A, published japanese patent No. 2160316, discloses a tracer particle feeding device for surface flow field measurement, comprising a load-bearing support composed of a frame and a screw, a V-shaped storage box containing tracer particles and having an opening at the lower end, a rotating shaft, and a power system; the bearing support is connected with the V-shaped storage box through a screw rod for adjusting the height of the V-shaped storage box, and the screw rod is fixedly welded with the V-shaped storage box; the rotating shaft is arranged at an outlet at the lower end of the storage box; the power system drives the rotating shaft to rotate, and trace particles fall into fluid from an outlet at the lower end of the V-shaped storage box.
However, in the comparison document 2, it is difficult to control the speed of the trace particles entering the water, and a large error is caused to the measurement, so that the method is not suitable for a long-period and high-precision indoor model test.
Therefore, a tracer particle feeding device suitable for a liquid flow field is needed, which can solve the problem that the concentration of particles in fluid is difficult to control after the particles are fed, so as to meet the requirements of different measuring instruments on the concentration of the particles; the problem of uneven particle feeding can be solved, the initial speed of the particle feeding is reduced, and the measurement is more accurate.
Disclosure of Invention
The invention provides a tracer particle feeding device applicable to a liquid flow field, which can control the concentration of tracer particles in fed fluid and adjust the concentration of the tracer particles according to the requirements of different measuring instruments on the concentration of the tracer particles; can evenly put in the tracer particle to reduce the initial velocity when the tracer particle is put in, make the measurement more accurate. Thereby solving the deficiencies in the prior art.
A tracer particle throwing device suitable for a liquid flow field comprises a throwing box, wherein the throwing box is of a barrel-shaped structure; the valve combiner is connected to one end, close to the liquid flow field, of the throwing box and comprises a plurality of valve groups; the method comprises the following steps:
the valve control gear set is arranged at one end of the throwing box, which is far away from the liquid flow field; the valve control gear set includes:
one end of the adjusting knob is sleeved with a gear;
a gear ring engaged with a gear of the adjustment knob;
the winding device comprises a plurality of winding posts, a gear ring and a plurality of winding posts, wherein one end of each winding post is sleeved with a small gear; one ends of a plurality of strings are fixed on the winding posts, the other ends of the strings are respectively connected with a plurality of valve groups in the valve combiner, and the valve control gear group pulls the strings through the winding posts to control the opening and closing of the valve combiner.
By adopting the structure, tracer particles are placed in the throwing box. Screwing the adjusting knob to drive the gear sleeved on the adjusting knob, so that the gear drives the gear ring to rotate, and the gear ring drives other pinions meshed with the gear ring; the small gear drives the winding post to rotate, and finally the effect of loosening or tightening the string is achieved. The condition of the opening size of the valve group is controlled by controlling the length of the thin rope, and finally the control of the feeding speed and the concentration of the trace particles is realized. Therefore, the concentration of the trace particles in the thrown fluid can be controlled, and the concentration of the trace particles can be adjusted according to the requirements of different measuring instruments on the concentration of the trace particles; can evenly put in the tracer particle to reduce the initial velocity when the tracer particle is put in, make the measurement more accurate.
Further, the valve control gear set further includes:
the anti-moving wall is of a circular ring structure, the inner diameter of the anti-moving wall is larger than that of the gear ring, and the anti-moving wall is fixed on the inner wall of the throwing box;
the plug is sleeved on the anti-moving wall, one end of the plug is provided with a limiting tooth, the limiting tooth at one end of the plug is meshed with the gear ring, and the other end of the plug is provided with an end head which is convenient for pulling and inserting the plug.
By adopting the structure, the anti-moving wall is fixed on the inner wall of the throwing box, and the effect of fixing and supporting the valve control gear set is achieved. The plug can move in a small range on the anti-moving wall, the plug can be pulled out and inserted, when the plug is pulled out, the limiting teeth of the plug are separated from the gear ring, the gear ring can rotate, and when the plug is inserted, the limiting teeth of the plug are contacted with and meshed with the gear ring, so that the gear ring is fixed.
Furthermore, the valve combiner comprises a plurality of single-layer valve combiners, and the single-layer valve combiners are connected with one end, far away from the valve control gear set, of the throwing box in a sealing mode.
Further, the single-layer valve combiner includes:
the screen mesh plate is provided with a plurality of screen meshes;
the second winding post holes are formed in the edge of the sieve pore plate, the winding posts penetrate through the second winding post holes, the winding posts are rotatably connected with the second winding post holes, and the number of the second winding post holes is the same as that of the winding posts;
a plurality of valve groups;
the valve group includes: two parallel sliding tracks and two magnetic sliders;
there is magnetic attraction between two magnetic sliding block, two the magnetic sliding block sets up two parallels between the slip track, magnetic sliding block one end is provided with the tether ring, tether ring connection the string.
By adopting the structure, the sieve holes of the sieve plate are closed when the two magnetic slide blocks are closed. When the magnetic slide block is opened, the sieve holes of the sieve plate are gradually opened, and the opening degree depends on the opening degree of the magnetic slide block. The magnetic slider is pulled by the string, and the string is tightened by rotating the winding post, so that the magnetic slider is opened. When rotating the wrapping post and releasing the string, because the magnetism of magnetic slider, two magnetic slider inter attraction between the slip track reduce the degree of opening through magnetic attraction, finally close. The throwing speed of the solid or liquid tracer particles is controlled by adjusting the opening degree of the valve group, and the throwing speed and the uniformity of the tracer particles entering the fluid through the sieve pores are effectively guaranteed in the process. In addition, the sieve pores of the valve combiner adopt vertical punching, so that the trace particles cannot be blocked when falling, and the effect of continuous falling can be achieved.
Furthermore, the sliding track is provided with a front baffle and a rear baffle, and the front baffle and the rear baffle are arranged at the extreme positions of the magnetic slide block moving on the sliding track;
and a cleaning stop strip is further arranged at the middle position of the sliding track and is in contact with the surface of the magnetic sliding block.
By adopting the structure, the magnetic slide block can be effectively prevented from falling off from the sliding track when the valve group is opened. Through setting up the clearance blend stop, when the magnetism slider was opened, the original tracer particle in magnetism slider top was kept off by the clearance blend stop to avoided the concentration to appear changing.
Further, the valve combiner further includes:
the shafts of the pulleys are vertically fixed on the sieve plate, so that the movement direction of the thin ropes is changed;
the valve group comprises a plurality of concave curved surface rings, wherein the concave curved surface rings form a circular ring surrounding a valve group, and the concave curved surface rings are provided with wire outlet holes which fix the positions of the strings.
By adopting the structure, the movement direction of the strings can be changed through the pulleys by fixing the pulleys at the specific positions on the sieve plate, the force conduction is not hindered, the arrangement of the strings can be better planned, and the outlet positions of the strings can be fixed by the outlet holes, so that the strings can be prevented from being wound mutually, and the wrapping posts can be better used.
Furthermore, the invention also comprises an electric stirrer, wherein the electric stirrer is connected with the valve control gear set and is used for stirring the tracer particles in the putting box.
Further, the electric stirrer includes:
the motor box is internally provided with a motor;
the rotating track is arranged on the bottom surface of the motor box close to the throwing box;
the stirring rod, the stirring rod sets up on rotatory track, and the one end and the motor of stirring rod are connected, and the other end stretches into and puts in the case.
By adopting the structure, the electric stirrer is connected to the upper end of the valve control gear set, and the electric stirrer, the valve control gear set and the valve combiner in the closed state form a closed barrel-shaped structure. Therefore, the tracer particles can be stirred by the electric stirrer before being released, so that the consistency of the concentration of the tracer particles is ensured. When the tracer particle is the solid, electric mixer also can smash and evenly stir it, does not need the manual work to smash convenient and fast.
Furthermore, a first winding post hole is formed in the electric stirrer and is a through hole, and one end, far away from the gear, of the adjusting knob penetrates through the first winding post hole.
By adopting the structure, one end of the adjusting knob can extend out of the electric stirrer, so that the operation is convenient.
Furthermore, the components except the magnetic slider are all made of nonmagnetic materials.
By adopting the structure, the stress of the magnetic slider is prevented from being interfered.
The invention has the following beneficial effects:
1. the invention can control the concentration of the trace particles in the fluid after being put in and can adjust the concentration of the trace particles according to the requirements of different measuring instruments on the concentration of the trace particles.
2. The invention can uniformly put in the tracer particles, and reduce the initial speed of putting in the tracer particles, thereby ensuring more accurate measurement.
3. The invention uses the electric stirrer to stir the tracer particles, thereby better ensuring the uniformity of the tracer particles and being convenient to operate.
4. The invention can adjust the concentration of the tracer particles according to the requirement of the testing device, is more flexible and has good adaptability, thereby reducing the cost.
5. The sieve pores of the valve combiner adopt vertical punching, so that the trace particles cannot be blocked when falling, and the effect of continuous falling can be achieved.
Drawings
FIG. 1 is a three-quarter sectional three-dimensional view of a schematic of the structure of the present invention;
FIG. 2 is a cross-sectional view of a schematic structural diagram of the present invention;
FIG. 3 is a schematic structural view of a valve control gear set according to the present invention;
FIG. 4 is a detailed structural diagram of a plug in the valve control gear set according to the present invention;
FIG. 5 is a schematic view of the construction of the electric stirrer according to the present invention;
FIG. 6 is a top view of the valve combiner of the present invention;
FIG. 7 is a schematic structural diagram of a single-layer valve combiner in the valve combiner of the present invention;
FIG. 8 is a top view of a single layer valve combiner in the valve combiner of the present invention;
FIG. 9 is a schematic view of a valve assembly according to the present invention;
reference numerals:
1. an electric stirrer; 11. a motor case; 12. a first winding post hole; 13. rotating the track; 14. a stirring rod; 2. a valve control gear set; 21. adjusting a knob; 22. a gear ring; 23. a movable wall; 24. plugging; 25. a pinion gear; 26. a winding post; 3. a throwing box; 4. a valve combiner; 41. a second winding post hole; 42. a valve group; 421. a sliding track; 422. a rear baffle plate; 423. a magnetic slider; 425. cleaning the gear strips; 424. a front baffle; 426. a tether loop; 43. a pulley; 44. a concave curved ring; 45. a perforated screen; 46. and (7) a wire outlet hole.
Detailed Description
It should be apparent that the embodiments described below are some, but not all embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1, 2 and 3, a tracer particle feeding device suitable for a liquid flow field comprises a feeding box 3, wherein the feeding box 3 is of a barrel-shaped structure; a valve combiner 4, wherein the valve combiner 4 is connected to one end of the throwing box 3 close to the liquid flow field, and the valve combiner 4 comprises a plurality of valve groups 42; the method comprises the following steps:
the valve control gear set 2 is arranged at one end of the throwing box 3, which is far away from the liquid flow field; the valve control gear set 2 includes:
an adjusting knob 21, wherein one end of the adjusting knob 21 is sleeved with a gear;
a gear ring 22, said gear ring 22 being engaged with the gear of said adjusting knob 21;
a plurality of winding posts 26, wherein one end of each winding post 26 is sleeved with a pinion 25, and the pinion 25 is meshed with the gear ring 22; one ends of a plurality of strings are fixed on the winding posts 26, the other ends of the strings are respectively connected with a plurality of valve groups 42 in the valve combiner 4, and the valve control gear group 2 pulls the strings through the winding posts 26 to control the opening and closing of the valve combiner 4.
With such a structure, tracer particles are placed in the feeding box 3. Screwing the adjusting knob 21 to drive the gear sleeved on the adjusting knob 21, so that the gear drives the gear ring 22 to rotate, and the gear ring 22 drives other pinions 25 engaged with the gear ring 22; the pinion 25 drives the winding post 26 to rotate, and finally the effect of loosening or tightening the string is achieved. The opening size of the valve group 42 is controlled by controlling the length of the string, and finally the throwing speed and concentration of the trace particles are controlled. Therefore, the concentration of the trace particles in the thrown fluid can be controlled, and the concentration of the trace particles can be adjusted according to the requirements of different measuring instruments on the concentration of the trace particles; can evenly put in the tracer particle to reduce the initial velocity when the tracer particle is put in, make the measurement more accurate.
As shown in fig. 3, the valve control gear set 2 further includes:
the anti-moving wall 23 is of a circular ring structure, the inner diameter of the anti-moving wall 23 is larger than that of the gear ring 22, and the anti-moving wall 23 is fixed on the inner wall of the throwing box 3;
and the plug 24 is sleeved on the anti-moving wall 23, one end of the plug 24 is provided with a limiting tooth, the limiting tooth at one end of the plug 24 is meshed with the gear ring 22, and the other end of the plug 24 is provided with an end head convenient for pulling and inserting the plug 24.
By adopting the structure, the anti-moving wall 23 is fixed on the inner wall of the throwing box 3, and the effect of fixing and supporting the valve control gear set 2 is achieved. The plug 24 is movable on the movement preventing wall 23 to a small extent, and the plug 24 is insertable and removable, and when the plug 24 is extracted, the stopper teeth of the plug 24 are separated from the gear ring 22, and the gear ring 22 is rotatable, and when the plug 24 is inserted, the stopper teeth of the plug 24 are brought into contact with and engaged with the gear ring 22, thereby fixing the gear ring 22.
As shown in fig. 6 and 7, the valve combiner 4 includes a plurality of single-layer valve combiners, and the single-layer valve combiners are hermetically connected with one end of the throwing box 3 away from the valve control gear set 2.
The single layer valve combiner comprises:
the screen hole plate 45 is provided with a plurality of screen holes;
a plurality of second winding post holes 41, wherein the second winding post holes 41 are arranged at the edge of the sieve plate 45, the winding posts 26 penetrate through the second winding post holes 41, the winding posts 26 are rotatably connected with the second winding post holes 41, and the number of the second winding post holes 41 is the same as that of the winding posts 26;
a plurality of valve groups 42;
as shown in fig. 9, the valve group 42 includes: two parallel sliding rails 421 and two magnetic sliders 423;
magnetic attraction exists between the two magnetic sliding blocks 423, the two magnetic sliding blocks 423 are arranged between the two parallel sliding tracks 421, one end of the magnetic sliding block 423 is provided with a rope tying ring 426, and the rope tying ring 426 is connected with the thin rope.
With this structure, the two magnetic sliders 423 close the meshes of the mesh plate 45. When the magnetic slider 423 is opened, the sieve holes of the sieve plate 45 are gradually opened, and the opening degree depends on the opening degree of the magnetic slider 423. The magnetic slider 423 is pulled by the string, and the string is tightened by rotating the winding post 26, so that the magnetic slider 423 is opened. When the string is released by rotating the winding post 26, the two magnetic sliders 423 between the sliding rails 421 are attracted to each other due to the magnetism of the magnetic sliders 423, and the opening degree is reduced by the magnetic attraction force, and finally the closing is performed. By adjusting the opening degree of the valve set 42 to control the throwing speed of the solid or liquid tracer particles, the throwing speed and the uniformity of the tracer particles entering the fluid through the sieve holes are effectively ensured in the process. And the sieve pores of the valve combiner 4 are vertically perforated, so that the trace particles cannot be blocked when falling, and the effect of continuous falling can be achieved.
The sliding track 421 is provided with a front baffle 424 and a rear baffle 422, and the front baffle 424 and the rear baffle 422 are arranged at the extreme positions of the magnetic slider 423 moving on the sliding track 421;
the middle position of the sliding track 421 is further provided with a cleaning stop strip 425, and the cleaning stop strip 425 is in contact with the surface of the magnetic slider 423.
With such a configuration, the magnetic slider 423 can be effectively prevented from falling off the slide rail 421 when the valve group 42 is opened. Through setting up clearance blend stop 425, when magnetism slider 423 opened, the original tracer particle in magnetism slider 423 top was kept off by the clearance blend stop to the concentration change has been avoided.
As shown in fig. 6, the valve combiner 4 further includes:
a plurality of pulleys 43, the shafts of the pulleys 43 are vertically fixed on the sieve plate 45, and the movement direction of the thin ropes is changed;
the valve group 42 is characterized by comprising a plurality of concave curved rings 44, wherein the concave curved rings 44 form a circular ring surrounding the valve group 42, outlet holes 46 are formed in the concave curved rings 44, and the positions of the strings are fixed through the outlet holes 46.
By adopting the structure, the movement direction of the strings can be changed through the pulleys 43 by fixing the pulleys 43 at the specific positions on the sieve plate 45, the force conduction is not hindered, the arrangement of the strings is better planned, and the line outlet positions of the strings are fixed by the line outlet holes 46, so that the strings are prevented from being wound with each other, and the winding posts 26 can be better used.
As shown in fig. 5, the present invention further includes an electric stirrer 1, wherein the electric stirrer 1 is connected to the valve control gear set 2, and the electric stirrer 1 is used for stirring the trace particles in the dosing tank 3.
The electric mixer 1 includes:
a motor box 11, wherein a motor is arranged in the motor box 11;
a rotating track 13, wherein the rotating track 13 is arranged on the bottom surface of the motor box 11 close to the throwing box 3;
and the stirring rod 14 is arranged on the rotating track 13, one end of the stirring rod 14 is connected with the motor, and the other end of the stirring rod extends into the throwing box 3.
By adopting the structure, the electric stirrer 1 is connected to the upper end of the valve control gear set 2, and the electric stirrer 1, the valve control gear set 2 and the valve combiner 4 in the closed state form a closed barrel-shaped structure. This allows the tracer particles to be stirred by the electric stirrer 1 before being released, thereby ensuring their consistency. When the tracer particle is the solid, electric mixer 1 also can smash and evenly stir it, does not need the manual work to smash convenient and fast.
First winding post hole 12 has been seted up on electric stirrer 1, first winding post hole 12 is the through-hole, the one end that adjust knob 21 kept away from the gear passes first winding post hole 12.
With this structure, one end of the adjusting knob 21 can be extended from the electric mixer 1, and the operation is facilitated.
The components other than the magnetic slider 423 are nonmagnetic materials.
With this configuration, the force applied to the magnetic slider 423 is prevented from being disturbed.
The invention has the following beneficial effects:
1. the invention can control the concentration of the trace particles in the fluid after being put in and can adjust the concentration of the trace particles according to the requirements of different measuring instruments on the concentration of the trace particles.
2. The invention can uniformly put in the tracer particles, and reduce the initial speed of putting in the tracer particles, thereby ensuring more accurate measurement.
3. The electric stirrer 1 is used for stirring the tracer particles, so that the uniformity of the tracer particles is better ensured, and the operation is convenient.
4. The invention can adjust the concentration of the tracer particles according to the requirement of the testing device, is more flexible and has good adaptability, thereby reducing the cost.
5. The sieve pores of the valve combiner 4 are vertically perforated, so that the trace particles cannot be blocked when falling, and the effect of continuous falling can be achieved.
Example 2
This embodiment uses the same apparatus as in embodiment 1, except that this embodiment will describe the method of connecting and arranging strings in the invention.
In the valve group 42 group linkage system of the present invention, as shown in fig. 8, a high-strength string is tied on the string-tying ring 426 at the tail end of the magnetic slider 423 in the valve group 42, the string-tying direction is changed by the pulley 43 to pass through the wire-outlet hole 46, and the string-tying ring is finally connected with the spool 26 around the concave curved ring 44. The stringing method of the string is as follows, wherein I to IV are the numbers of the valve group 42, a to p are the numbers of the pulley 43, A to Q are the numbers of the outlet hole 46, and the valve group 42 in the upper semicircle in the figure 8 is taken as an example:
left end of No. i: a → H, right end p → J; no. II, left: e, right: b → a → H; left end of No. iii: o → p → J, right end: m; left end of iv: c, right end: c → e → B; upper end of No. V: b → a → H, lower end: f → d → B; VI, upper end: o → p → J, lower end: k → m → P; number vii left end: n → l → P, right end: o; left end of No. viii: a, right end: g → d → B; left end of IX: g → d → B, right end: h → f → d → B; left end of X: h → f → d → B, right end: i → k → m → P; left end of XI: i → k → m → P, right end: j → m → P; left end j → m → P, right end: and Q.
The cord is fed through the outlet 46 and wound around the post 26 in a clockwise direction, and a length of the cord is secured to the post 26.
The remaining cord connections of the valve block 42 are arranged in the same manner as described above and will not be described further.
When the valve combiner 4 has a plurality of single-layer valve combiners, the valve groups 42 corresponding to the same sieve pore on two single-layer valve combiners are perpendicular to each other, so that excessive magnetic attraction interference is avoided.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A tracer particle throwing device suitable for a liquid flow field comprises a throwing box (3), wherein the throwing box (3) is of a barrel-shaped structure; the valve combiner (4), the valve combiner (4) is connected to one end, close to the liquid flow field, of the throwing box (3), and the valve combiner (4) comprises a plurality of valve groups (42); it is characterized by comprising:
the valve control gear set (2), the valve control gear set (2) is arranged at one end of the throwing box (3) far away from the liquid flow field; the valve control gear set (2) comprises:
one end of the adjusting knob (21) is sleeved with a gear;
a gear ring (22), the gear ring (22) being engaged with a gear of the adjustment knob (21);
the winding device comprises a plurality of winding posts (26), wherein one end of each winding post (26) is sleeved with a small gear (25), and the small gear (25) is meshed with a gear ring (22); one ends of a plurality of strings are fixed on the winding posts (26), the other ends of the strings are respectively connected with a plurality of valve groups (42) in the valve combiner (4), and the valve control gear group (2) pulls the strings through the winding posts (26) to control the opening and closing of the valve combiner (4).
2. The trace particle dispensing device suitable for liquid flow field according to claim 1, wherein the valve control gear set (2) further comprises:
the anti-moving wall (23) is of a circular ring structure, the inner diameter of the anti-moving wall (23) is larger than that of the gear ring (22), and the anti-moving wall (23) is fixed on the inner wall of the throwing box (3);
the plug (24), plug (24) cover is established on preventing moving wall (23), and plug (24) one end is provided with spacing tooth, and the spacing tooth and the gear ring (22) meshing of plug (24) one end, the other end are provided with and are convenient for pull out and insert the end of plug (24).
3. The tracer particle dispensing device applicable to liquid flow fields, according to claim 1, wherein the valve combiner (4) comprises a plurality of single-layer valve combiners, and the single-layer valve combiners are hermetically connected with one end of the dispensing box (3) far away from the valve control gear set (2).
4. The tracer particle dispensing device for use in a liquid flow field according to claim 3, wherein the single-layer valve combiner comprises:
the screen mesh plate (45), a plurality of screen meshes are arranged on the screen mesh plate (45);
the second winding post holes (41) are formed in the edge of the screen plate (45), the winding posts (26) penetrate through the second winding post holes (41), the winding posts (26) are rotatably connected with the second winding post holes (41), and the number of the second winding post holes (41) is the same as that of the winding posts (26);
a plurality of valve groups (42);
the valve group (42) comprises: two parallel sliding tracks (421) and two magnetic sliders (423);
there is magnetic attraction between two magnetic slider (423), two magnetic slider (423) set up two parallels between slip track (421), magnetic slider (423) one end is provided with tether ring (426), tether ring (426) connect the string.
5. The tracer particle feeding device suitable for the liquid flow field according to claim 4, wherein the sliding track (421) is provided with a front baffle (424) and a rear baffle (422), and the front baffle (424) and the rear baffle (422) are arranged at extreme positions of the magnetic slider (423) moving on the sliding track (421);
the middle position of the sliding track (421) is also provided with a cleaning stop bar (425), and the cleaning stop bar (425) is in contact with the surface of the magnetic sliding block (423).
6. The trace particle dispensing device suitable for liquid flow field according to claim 4, wherein the valve combiner (4) further comprises:
a plurality of pulleys (43), wherein the shafts of the pulleys (43) are vertically fixed on the sieve plate (45) to change the moving direction of the thin ropes;
the valve group (42) is characterized by comprising a plurality of concave curved surface rings (44), a circular ring surrounding the valve group (42) is formed by the concave curved surface rings (44), wire outlet holes (46) are formed in the concave curved surface rings (44), and the positions of the strings are fixed by the wire outlet holes (46).
7. The tracer particle dispensing device applicable to liquid flow fields according to claim 1, further comprising an electric stirrer (1), wherein the electric stirrer (1) is connected with the valve control gear set (2), and the electric stirrer (1) is used for stirring the tracer particles in the dispensing box (3).
8. Tracer particle dosing device according to claim 7, characterized in that said electric stirrer (1) comprises:
the motor box (11), wherein a motor is arranged in the motor box (11);
the rotating track (13), the rotating track (13) is arranged on the bottom surface of the motor box (11) close to the throwing box (3);
the stirring rod (14) is arranged on the rotating track (13), one end of the stirring rod (14) is connected with the motor, and the other end of the stirring rod extends into the throwing box (3).
9. The tracer particle releasing device applicable to the liquid flow field according to claim 8, wherein the electric stirrer (1) is provided with a first winding post hole (12), the first winding post hole (12) is a through hole, and one end of the adjusting knob (21) far away from the gear passes through the first winding post hole (12).
10. The tracer particle delivery device suitable for liquid flow fields according to any of claims 1-9, wherein the components other than the magnetic slider (423) are made of non-magnetic materials.
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