Suspended spheres for water body marking and their recapture counting device

Abstract

This invention relates to the field of water conservancy equipment technology, and particularly to a suspended ball for water body marking and its recapture counting device. The invention provides a suspended ball for water body marking and a recapture counting device designed for this suspended ball. By cutting a specific paraffin layer on the surface of the suspended ball, precise density control of the suspended ball is achieved. Furthermore, this suspended ball design can be used to accurately collect information such as channel flow velocity, flow rate, distribution water volume, evaporation and leakage losses, etc., replacing the water body marking scheme involving chromatin release and completely avoiding the problem of residual chromatin pollution.

Description

Technical Field

[0001] This invention relates to the field of water conservancy equipment technology, and in particular to a suspended ball for water body marking and its recapture counting device. Background Technology

[0002] Irrigation facilities such as canals are widely distributed in agricultural areas along rivers. In the Hetao Plain region of the middle and upper reaches of the Yellow River, due to low rainfall and high altitude, agricultural irrigation heavily relies on the canal system connected to the Yellow River. The Yellow River's runoff is relatively small, only five percent of the Yangtze River's, and its sediment content is high. Excessive water extraction would lead to excessively low downstream flow velocity and rapid sediment deposition, raising the riverbed and causing serious safety hazards. Therefore, it is essential to scientifically plan and allocate irrigation water in the Yellow River basin, balancing agricultural productivity with downstream safety within limited water extraction limits. This requires precise measurement of water extraction in irrigation areas along the Yellow River.

[0003] Currently, flow velocity and flow rate are typically measured in irrigation canals using Parshall flumes, ultrasonic probes, or water level curves. However, the Parshall flume and ultrasonic probe methods are significantly affected by wind and waves on the water surface, resulting in poor accuracy. The water level curve method is an indirect measurement method, and its accuracy depends on the establishment of a model relating water level and flow rate. However, the acquisition of direct flow velocity and flow rate data still has accuracy issues. Furthermore, in the Yellow River basin, the deposition of sediment in the water body alters the shape of the canals, so even if the mathematical model of the water level curve method is accurately established, its actual measurement accuracy will still gradually decrease over time.

[0004] Water body labeling, which involves mixing markers into the water and sampling and analyzing downstream, can obtain relevant flow rate and velocity data with high statistical accuracy. Currently, common water body labeling schemes include chromatin schemes and float schemes. The chromatin scheme involves pouring dye into the water at a constant rate and analyzing downstream to obtain the distribution density of the dye in the water, thereby determining flow rate data and indirectly obtaining the average flow velocity data within the interval. However, the dye cannot be retrieved from the water body, making it difficult to balance the degradation rate of environmental indicators with measurement accuracy when selecting dye. Furthermore, this scheme can only be used for monitoring the flow of main canals and cannot determine the inflow rate at branch ends. The float scheme is typically used to measure flow velocity. By measuring the speed at which the float passes through the monitoring point, the velocity of the water is obtained. However, due to the influence of water viscous resistance, the velocity of water movement within the channel is not uniform. Therefore, this velocity measurement requires empirical calculation correction, resulting in lower accuracy. Summary of the Invention

[0005] Therefore, it is necessary to design a device that uses a water body marking scheme to obtain flow rate data with high statistical accuracy while eliminating the environmental problems of dyeing materials.

[0006] Suspended spheres used for water body marking consist of an iron core, a plastic shell, and a counterweight paraffin layer.

[0007] The plastic shell consists of a spherical shell and two protruding bosses at both ends of the spherical shell. There are two iron cores, which are installed at the tips inside the two bosses respectively. The counterweight paraffin layer is laid on the outside of the spherical shell and consists of two sections: an upper paraffin layer and a lower paraffin layer. The dividing line between the upper and lower paraffin layers connects the two bosses.

[0008] The upper paraffin layer is made of pure paraffin with a density of 0.9 to 0.95 g per milliliter, while the lower paraffin layer is made of paraffin mixed with metal powder with a density of 1.05 to 1.1 g per milliliter.

[0009] In this design, given that the density of pure paraffin wax is less than that of water, the overall density of the suspended ball can be reduced by cutting away part of the upper paraffin layer, and vice versa. This simple cutting operation precisely adjusts the overall density of the suspended ball, allowing it to suspend in the target water without floating or sinking. The cutting process can be performed while the ball is immersed in the target water. Magnets on both sides attract the iron core of the protruding parts, creating a magnetic axis that runs through both protruding parts. The density difference between the upper and lower paraffin layers causes the center of gravity to shift, rotating the ball around the magnetic axis until the upper paraffin layer is at the top and the lower paraffin layer at the bottom, thus positioning it. Then, the cutting operation is performed based on the floating or sinking state of the suspended ball in the target water to precisely adjust the overall density.

[0010] This design precisely controls the density of the suspended balls using the aforementioned methods, allowing them to move at varying heights within the water body. Upon entering the zone affected by viscous resistance, their velocity changes according to the gradient flow velocity of the target water body, achieving complete tracking of the water. During channel operation, the suspended balls are efficiently recaptured using a magnetic device for counting and analysis of parameters such as their distribution density, thereby enabling precise monitoring of water flow rate, velocity, and tributary distribution ratios.

[0011] Preferably, the iron core is made of silicon steel to reduce the possibility that the iron core will be magnetized and attracted to iron objects such as gates, bridge piers, and exposed steel bars in damaged concrete structures along the canal.

[0012] Preferably, the plastic shell is formed by splicing two symmetrical hemispherical shells. Each hemispherical shell has a boss portion with an inner cavity that communicates with the inner cavity of the hemispherical shell. That is, the hemispherical shell and the boss portion can be injection molded in one step. The iron core is installed into the boss portion through the communication point, and then the two hemispherical shells are spliced ​​together to form a complete plastic shell. Furthermore, the iron core is fixed by an interference fit between its surface roughened and the inner surface of the boss portion, or by barbs on the surface of the iron core hooking onto the inner surface of the boss portion for connection and fixation, or by heating the iron core before installation to melt and fix the inner surface of the boss portion.

[0013] Furthermore, the hemispherical shell is fused together to form a plastic casing, which simultaneously achieves the sealing treatment of the interface.

[0014] Preferably, the metal powder is aluminum powder. Due to the presence of a dense alumina layer on its surface, aluminum material has stable chemical properties at room temperature and is resistant to weak acids and alkalis. Compared with iron powder, it is less susceptible to corrosion from environmental influences. Compared with lead powder, it causes less environmental pollution when broken and spilled. At the same time, its relative density is low, making it less likely to separate from molten paraffin during mixing, which facilitates precise density adjustment.

[0015] Based on the design of the suspended ball for water body marking, this application also provides a recapture counting device for the suspended ball for water body marking, including a magnetic track, an action platform, an action plate, a micro switch, a magnetic core, and a magnetic core coil.

[0016] The magnetic rail is a rod-shaped slide rail that is tilted downwards, and a magnetized iron core rod is installed inside the magnetic rail.

[0017] The actuation table is located below and tilted to the side of the lower end of the magnetic track, with the tilt direction opposite to that of the magnetic track. A hinge is set in the middle of the actuation plate and is hinged to the actuation table through the hinge. A micro switch is installed between the actuation table and the actuation plate, located above the hinge and below the upper end of the actuation plate.

[0018] The magnetic core is installed at the lower end of the actuation board, and the magnetic core coil is fitted outside the magnetic core.

[0019] When performing a recapture counting operation on a suspended ball, the ball is first gathered using a magnet or screen and then brought into contact with a magnetic track. The magnetic attraction between the iron core inside one of the protrusions and the magnetized iron core rod inside the magnetic track suspends the ball below the track, causing it to slide downwards along the track's incline. Meanwhile, the other protrusion, pointing downwards (the lower protrusion), slides to the bottom of the track. When the ball reaches the bottom of the track, the iron core inside the lower protrusion approaches the magnetic core, generating a magnetic attraction that causes the magnetic core to rotate the actuating plate along the hinge. The upper part of the actuating plate approaches the actuating platform, activating a microswitch and simultaneously energizing the magnetic core coil. This increases the magnetic attraction between the magnetic core and the iron core of the lower protrusion, pulling the suspended ball off the track and causing it to fall. During the fall, the falling iron core of the lower protrusion pulls the magnetic core and its coil, driving the actuating plate to rotate and reset. The microswitch then disconnects and resets. The microswitch outputs a counting signal, completing one counting cycle.

[0020] Preferably, the two ends of the hinged actuation plate are counterweighted by a magnetic core and a magnetic core coil, so that when there is no external force interference, the magnetic core end is located at the lower end of the hinged actuation plate, so that the micro switch outputs a counting signal to the outside with the connection feature, which facilitates the simplification of related circuit design.

[0021] Preferably, the surface of the magnetic track is covered with a smooth plastic layer, so that the process of the levitating ball sliding down the magnetic track is due to friction between plastics, which reduces the wear of the levitating ball and facilitates reuse.

[0022] Preferably, the magnetic track is an inclined annular track with a grooved structure on its surface to prevent slippage. The levitation ball moves along the magnetic track by driving the annular track to rotate, keeping the speed of the levitation ball passing through the magnetic track uniform and stable.

[0023] This invention provides a suspended sphere for water body marking and a recapture counting device designed for the suspended sphere. By cutting a specific paraffin layer on the surface of the suspended sphere, precise density control of the suspended sphere is achieved. Furthermore, this suspended sphere scheme can be used to accurately collect information such as channel flow velocity, flow rate, water distribution volume, evaporation and leakage loss, etc., replacing the water body marking scheme of chromatin release and completely avoiding the problem of chromatin residual pollution. Attached Figure Description

[0024] Appendix Figure 1 This is a schematic diagram of a specific embodiment of a suspended sphere used for water body marking;

[0025] Appendix Figure 2 This is a cross-sectional structural schematic diagram of a specific embodiment of a suspended sphere used for water body marking;

[0026] Appendix Figure 3 This is a schematic diagram of a specific embodiment of a recapture counting device for marker suspended balls in water.

[0027] Appendix Figure 4This is a schematic diagram of the counting action structure of a specific embodiment of a recapture counting device for marker suspended balls in water.

[0028] Appendix Figure 5 This is a schematic diagram of the reset action structure of a specific embodiment of a recapture counting device for marker suspended balls in water.

[0029] Appendix Figure 6 This is a top view schematic diagram of the annular magnetic track structure of a specific embodiment of a recapture counting device for marking suspended spheres in water.

[0030] Appendix Figure 7 This is a schematic diagram of a partial structure of the action plate in a specific embodiment of a recapture counting device for marking suspended balls in water.

[0031] In the diagram, the components are: iron core 1, plastic shell 2, boss 201, counterweight paraffin layer 3, upper paraffin layer 301, lower paraffin layer 302, magnetic track 4, iron core rod 401, smooth plastic layer 402, actuating table 5, micro switch 501, hinge 502, actuating plate 6, magnetic core 601, and magnetic core coil 602. Detailed Implementation

[0032] The suspended sphere used for water body marking includes an iron core 1, a plastic shell 2, and a counterweight paraffin layer 3.

[0033] The plastic shell 2 consists of a spherical shell and two protruding bosses 201 at both ends of the spherical shell. There are two iron cores 1, which are installed at the tips inside the two bosses 201 respectively. The counterweight paraffin layer 3 is laid on the outside of the spherical shell and consists of two sections: an upper paraffin layer 301 and a lower paraffin layer 302. The dividing line between the upper paraffin layer 301 and the lower paraffin layer 302 connects the two bosses 201.

[0034] The upper paraffin layer 301 is made of pure paraffin material with a density of 0.9 to 0.95 g per milliliter, while the lower paraffin layer 302 is made of paraffin material mixed with metal powder with a density of 1.05 to 1.1 g per milliliter.

[0035] The iron core 1 is made of silicon steel, which reduces the possibility that the iron core 1 will be magnetized and attracted to iron objects such as gates, bridge piers, and exposed steel bars in damaged concrete structures along the canal.

[0036] The plastic shell 2 is formed by splicing two symmetrical hemispherical shells. Each hemispherical shell has a boss 201, which has an inner cavity and communicates with the inner cavity of the hemispherical shell. That is, the hemispherical shell and the boss 201 can be injection molded in one step. The iron core 1 is installed into the boss 201 through the connection, and then the two hemispherical shells are spliced ​​together to form a complete plastic shell 2. The iron core 1 is connected and fixed to the inner surface of the boss 201 by an interference fit with a rough surface, or by barbs on the surface of the iron core 1 hooking onto the inner surface of the boss 201, or by heating the iron core 1 before installation to melt and fix the inner surface of the boss 201.

[0037] The hemispherical shell is fused together to form a plastic shell 2, which simultaneously achieves the sealing treatment of the interface.

[0038] The aforementioned metal powder is aluminum powder. Due to the presence of a dense aluminum oxide layer on its surface, aluminum material is chemically stable at room temperature and resistant to weak acids and alkalis. Compared to iron powder, it is less susceptible to corrosion from environmental influences. Compared to lead powder, it causes less environmental pollution when broken or spilled. In addition, its relative density is low, making it less likely to separate from molten paraffin during mixing, thus facilitating precise density adjustment.

[0039] In this design, given that the density of pure paraffin is less than that of water, the overall density of the suspended ball can be reduced by cutting away part of the upper paraffin layer 301, and increased by cutting away part of the lower paraffin layer 302. This simple cutting operation precisely adjusts the overall density of the suspended ball, allowing it to suspend in the target water without floating or sinking. The cutting process can be performed while immersed in the target water. Magnets on both sides attract the iron core 1 of the protrusions 201, causing the protrusions 201 of the suspended ball to point to both sides, forming a magnetic axis penetrating the two protrusions 201. The density difference between the upper and lower paraffin layers 301 causes the center of gravity to shift, rotating the suspended ball around the magnetic axis until the upper paraffin layer 301 is at the top and the lower paraffin layer 302 is at the bottom, thus positioning it. Then, the cutting operation is performed based on the floating or sinking state of the suspended ball in the target water to precisely adjust the overall density.

[0040] This design precisely controls the density of the suspended balls using the aforementioned methods, allowing them to move at varying heights within the water body. Upon entering the zone affected by viscous resistance, their velocity changes according to the gradient flow velocity of the target water body, achieving complete tracking of the water. During channel operation, the suspended balls are efficiently recaptured using a magnetic device for counting and analysis of parameters such as their distribution density, thereby enabling precise monitoring of water flow rate, velocity, and tributary distribution ratios.

[0041] Based on the design of the suspended ball for water body marking, this invention also provides a recapture counting device for the suspended ball for water body marking, including a magnetic track 4, an action platform 5, an action plate 6, a micro switch 501, a magnetic core 601, and a magnetic core coil 602.

[0042] Among them, the magnetic rail 4 is a rod-shaped slide rail that is inclined downward, and a magnetized iron core rod 401 is installed inside the magnetic rail 4.

[0043] The actuation table 5 is located below the lower end of the magnetic track 4 and is tilted in the opposite direction to the tilt direction of the magnetic track 4. The actuation plate 6 is provided with a hinge 502 in the middle and is hinged to the actuation table 5 through the hinge 502. The micro switch 501 is installed between the actuation table 5 and the actuation plate 6, located above the hinge 502 and below the upper end of the actuation plate 6.

[0044] The magnetic core 601 is installed at the lower end of the actuation plate 6, and the magnetic core coil 602 is fitted around the magnetic core 601.

[0045] The two ends of the hinged actuation plate 6 are counterweighted by magnetic core 601 and magnetic core coil 602, so that when there is no external force interference, the end of magnetic core 601 is located at the lower end of the hinged actuation plate 6.

[0046] The surface of the magnetic track 4 is covered with a smooth plastic layer 402, so that the process of the levitating ball sliding down the magnetic track 4 is due to friction between plastics, which reduces the wear of the levitating ball and makes it easy to reuse.

[0047] In another scheme, the magnetic track 4 is an inclined ring track with a grooved structure on its surface to prevent slippage. The levitated ball moves along the magnetic track 4 by driving the ring track to rotate, keeping the speed of the levitated ball through the magnetic track 4 uniform and stable.

[0048] See attached document Figure 3 Appendix Figure 4 and attached Figure 5 When performing recapture counting on suspended balls, first use a magnet or sieve to gather the suspended balls, then bring them into contact with magnetic track 4, as shown in the attached diagram. Figure 3 As shown, the magnetic attraction between the iron core 1 inside one of the protrusions 201 and the magnetized iron core rod 401 inside the magnetic track 4 suspends the levitation ball below the magnetic track 4, and it slides downward along the inclination of the magnetic track 4. During this process, the other protrusion 201 points downward, which is the lower protrusion 201; as shown in the attached figure Figure 4 As shown, when the ball slides to the lower end of the magnetic track 4, the iron core 1 inside the lower boss 201 approaches the magnetic core 601, generating a magnetic attraction. This causes the magnetic core 601 to drive the actuating plate 6 to rotate along the hinge axis 502. The upper end of the actuating plate 6 approaches the actuating table 5, activating the micro switch 501. Simultaneously, this controls the magnetic core coil 602 to be energized, thereby increasing the magnetic attraction between the magnetic core 601 and the iron core 1 of the lower boss 201, pulling the levitation ball off the magnetic track 4 and causing it to fall. (See attached diagram) Figure 5 As shown, during the descent, the lower end boss 201 of the iron core 1 pulls the magnetic core 601 and the magnetic core coil 602 to move, driving the action plate 6 to rotate and reset, and the micro switch 501 to disconnect and reset. The above-mentioned on-action of the micro switch 501 outputs a counting signal to complete a counting process.

Claims

1. A recapture counting device for marking a suspension sphere in a body of water, characterized in that The suspended sphere consists of an iron core, a plastic shell, and a paraffin wax layer as a counterweight. The plastic shell consists of a spherical shell and two protruding bosses at both ends of the spherical shell. There are two iron cores, which are installed at the tips of the two bosses respectively. The counterweight paraffin layer is laid on the outside of the spherical shell and consists of two sections: an upper paraffin layer and a lower paraffin layer. The boundary line between the upper and lower paraffin layers connects the two bosses. The upper paraffin layer is made of pure paraffin material with a density of 0.9 to 0.95 g per milliliter, while the lower paraffin layer is made of paraffin material mixed with metal powder with a density of 1.05 to 1.1 g per milliliter. The recapture counting device includes a magnetic track, an action table, an action plate, a micro switch, a magnetic core, and a magnetic core coil; Among them, the magnetic rail is a rod-shaped slide rail that is inclined downwards, and a magnetized iron core rod is installed inside the magnetic rail; The actuation table is set below the lower end of the magnetic track and is tilted in the opposite direction to the tilt of the magnetic track. A hinge is set in the middle of the actuation plate and is hinged to the actuation table through the hinge. A micro switch is installed between the actuation table and the actuation plate, located above the hinge and below the upper end of the actuation plate. The magnetic core is installed at the lower end of the operating board, and the magnetic core coil is fitted outside the magnetic core; The plastic shell is formed by splicing two symmetrical hemispherical shells. Each hemispherical shell is provided with a boss, which has an inner cavity and is connected to the inner cavity of the hemispherical shell. The iron core is installed into the boss through this connection.

2. The recapture counting device for water-marked suspended spheres as described in claim 1, characterized in that, The iron core is made of silicon steel.

3. The recapture counting device for water-marked suspended spheres as described in claim 1, characterized in that, The hemispherical shell is fused together to form a plastic casing and seal the interface.

4. The recapture counting device for water-marked suspended spheres as described in claim 1, characterized in that, The metal powder is aluminum powder.

5. The recapture counting device for water-marked suspended spheres as described in claim 1, characterized in that, The two ends of the hinged actuation plate are counterweighted by a magnetic core and a magnetic core coil, so that the magnetic core end is located at the lower end of the hinged actuation plate when there is no external force interference.

6. The recapture counting device for water-marked suspended spheres as described in claim 1, characterized in that, The surface of the magnetic track is covered with a smooth plastic layer.

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