CN211425815U - Multifunctional agricultural material suspension speed testing device - Google Patents
Multifunctional agricultural material suspension speed testing device Download PDFInfo
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- CN211425815U CN211425815U CN202020220017.9U CN202020220017U CN211425815U CN 211425815 U CN211425815 U CN 211425815U CN 202020220017 U CN202020220017 U CN 202020220017U CN 211425815 U CN211425815 U CN 211425815U
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Abstract
The utility model relates to a multifunctional agricultural material suspension speed testing device, which comprises at least one group of testing units; the testing unit comprises a collecting pipe, a rectifying pipe, a feeding pipe, a first steady flow straight pipe and a conical testing pipe which are sequentially connected from bottom to top; the first flow stabilizing pipe is vertically provided with a first testing hole along the side surface of the pipe wall; the conical test tube is vertically provided with a second test hole along the side surface of the tube wall; the number of the first test holes and the number of the second test holes are not less than 3, and at least one test hole is correspondingly arranged on the top side, the middle side and the bottom side of the pipe wall; the diameter of the conical test tube is small at the bottom and large at the top, and the top of the conical test tube is also connected with a second steady flow straight tube; the top of the second steady flow straight pipe is connected with a flow dispersing cover; the first steady flow straight tube, the conical test tube and the second steady flow straight tube are transparent tubes. The utility model discloses a multifunctional agricultural material suspension speed testing device, which can realize multiple tests on materials; the test is intuitive, can clearly observe, the collection analysis of the convenient test data.
Description
Technical Field
The utility model relates to an agricultural material suspension speed test field especially relates to a multi-functional agricultural material suspension speed testing arrangement.
Background
The existing agricultural material suspension speed testing device can realize the measurement of the material suspension speed, but has the following defects:
1. the measurement holes are few, and the uniformity of the wind speed of the testing device is not enough for research and improvement.
2. Basically, only the suspension speed of the materials can be measured, but the separation wind speed of the mixed materials is not suitable to be measured.
3. The conveying and moving states of the materials in the pipelines with the fixed diameter under different volume fractions are inconvenient to observe more intuitively and clearly and analyze by contrast research.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a multifunctional agricultural material suspension speed testing device which can realize multiple tests on materials; the test is intuitive, can clearly observe, the collection analysis of the convenient test data.
The utility model provides a technical scheme that its technical problem adopted is: a multifunctional agricultural material suspension speed testing device comprises at least one group of testing units; the testing unit comprises a collecting pipe, a rectifying pipe, a feeding pipe, a first steady flow straight pipe and a conical testing pipe which are sequentially connected from bottom to top; the first flow stabilizing pipe is vertically provided with a first testing hole along the side surface of the pipe wall; the conical test tube is vertically provided with a second test hole along the side surface of the tube wall; the number of the first test holes and the number of the second test holes are not less than 3, and at least one test hole is correspondingly arranged on the top side, the middle side and the bottom side of the pipe wall; the diameter of the conical test tube is small at the bottom and large at the top, and the top of the conical test tube is also connected with a second steady flow straight tube; the top of the second steady flow straight pipe is connected with a flow dispersing cover; the first steady flow straight pipe, the conical test pipe and the second steady flow straight pipe are transparent pipes.
Further, the conical test tube is replaced by a test straight tube; the flow dispersing cover is connected with the top of the test straight pipe; the test straight pipe is also vertically provided with a second test hole along the side surface of the pipe wall; the number of the second test holes on the test straight pipe is not less than 3, so that at least one test hole is correspondingly arranged on the top side, the middle side and the bottom side of the pipe wall; the test straight tube is also a transparent tube.
Furthermore, the first test hole and the second test hole are used for being connected with a pitot tube air speed regulator, and the first test hole and the second test hole are plugged by rubber plugs when not in use.
Furthermore, a rectifying grid is arranged in the rectifying tube.
Furthermore, a flow dispersing blade is arranged in the flow dispersing cover, and a material blocking net is arranged below the flow dispersing blade.
Furthermore, a material placing net is arranged in the feeding pipe; a feed inlet is formed in the side wall of the feed pipe, which is positioned above the material placing net; a material door and a material door clamping groove are further formed in the position, at the feeding hole, of the feeding pipe; during testing, the material door is locked by the material door clamping groove to seal the feeding hole.
Furthermore, the testing device also comprises a rack and a fan; the bottom surface of the collecting pipe is fixed on the frame; a first flexible connecting pipe is also fixed on the frame; an air outlet of the fan is connected with a second flexible connecting pipe; the second flexible connecting pipe is communicated with the first flexible connecting pipe.
Furthermore, the testing device comprises a plurality of groups of testing units, and the inner diameters of the pipes of the testing units in different groups are different; the rack is fixedly provided with a plurality of first flexible connecting pipes which are arranged in parallel and correspond to the testing units; the first flexible connecting pipes are connected with the collecting pipes of the corresponding testing units.
Further, the fan is driven by a variable frequency motor; the testing device also comprises a frequency conversion cabinet which is used for controlling the variable frequency motor.
Furthermore, the pipes are connected by flanges; and a silica gel sealing gasket is arranged between the connected flanges.
The utility model discloses a multi-functional agricultural material suspension speed testing arrangement has following advantage:
1. the adopted conical test tube is convenient for measuring the suspension speed of single particles or particle groups of the household material;
2. the adopted test straight pipe is convenient for observing the conveying and motion states of the agricultural materials under the action of air force;
3. a plurality of groups of test units are adopted, and the inner diameters of the test units in different groups are different, so that the agricultural material conveying and motion states under different volume fractions can be observed, measured and contrasted and analyzed conveniently;
4. the design of the first test hole and the second test hole can measure the wind speeds at different heights through a pitot tube anemoscope, for the conical test tube, the wind speeds at different sections can be measured, the uniformity of a flow field in the tube can be further known, meanwhile, the first test hole at the lowest side can measure the separation wind speed of the mixed material, each test hole is provided with a rubber plug, when the wind speed at a certain height section needs to be measured, the corresponding rubber plug is opened for testing, and the design of the rubber plugs avoids the influence of the wind leakage of other test holes on the flow field in the test unit;
5. the pipes are connected by flanges, so that the disassembly and the assembly are convenient, and meanwhile, a silica gel pad is arranged between the connected flanges, so that the sealing effect is achieved, the vibration reduction effect is achieved, and the stability of the whole testing device is improved;
6. the testing units are fixed on the rack, a first flexible connecting pipe is fixed on the rack at the bottom side of a collecting pipe of each testing unit, a second flexible connecting pipe is fixed on the fan, and one fan is adopted to connect different testing units through the first flexible connecting pipe and the second flexible connecting pipe, so that the number of fans is saved, and meanwhile, the fan connection process is more convenient in a flexible connection mode;
7. the adopted rectifier tube is internally provided with a rectifier grid, so that the uniformity of a flow field in the test unit tube can be improved;
8. the adopted flow dispersing cover and the rectifier tube play a role in rectification together through the flow dispersing blades, the uniformity of a flow field in the test unit is improved, and the material blocking net is arranged to play a role in blocking materials;
8. the fan, the variable frequency motor and the variable frequency cabinet are adopted, so that the flow field wind speed in the test unit can be adjusted according to different materials;
9. the whole structure is simple, the first steady flow straight pipe, the conical test pipe, the second steady flow straight pipe and the test straight pipe are transparent pipes, the test is visual, the clear observation can be realized, and the collection and analysis of test data are convenient.
Drawings
FIG. 1 is a schematic front view of a multifunctional agricultural material suspension speed testing device according to an embodiment;
FIG. 2 is a schematic perspective view of a multifunctional agricultural material suspension speed testing device according to an embodiment;
FIG. 3 is a left side view schematically illustrating an apparatus for testing a suspension speed of a multifunctional agricultural material according to an embodiment;
FIG. 4 is a schematic view of a rectifier tube of the multifunctional agricultural material suspension speed testing device according to the embodiment;
fig. 5 is a schematic view of a diffuser of the multifunctional agricultural material suspension speed testing device of the embodiment.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.
Examples
As shown in fig. 1 to 5, the present embodiment provides a multifunctional agricultural material suspension speed testing apparatus, which includes three groups of testing units, wherein the inner diameters of the three groups of testing units are divided into a small inner diameter testing unit, a medium inner diameter testing unit and a large inner diameter testing unit; the three groups of test units respectively comprise a collecting pipe 7, a rectifying pipe 8, a feeding pipe 10 and a first steady flow straight pipe 15 which are sequentially connected from bottom to top; the first flow stabilizing pipe 15 is vertically provided with a first test hole 16 along the side surface of the pipe wall; the top of the first steady flow straight pipe 15 of the middle inner diameter test unit is connected with a conical test pipe 19; the conical test tube 19 is vertically provided with a second test hole 18 along the side surface of the tube wall; the number of the first test holes 16 and the second test holes 18 is not less than 3, so that the top side, the middle side and the bottom side of the pipe wall are provided with the test holes, the lower part of the caliber of the conical test pipe 19 is small, the upper part of the caliber of the conical test pipe 19 is large, and the top of the conical test pipe 19 is also connected with a second steady flow straight pipe 20; the top of the second steady flow straight pipe 20 is connected with a flow dispersing cover 21; the top parts of the first steady flow straight pipes 15 of the small inner diameter test unit and the large inner diameter test unit are connected with a test straight pipe 26; the flow dispersing cover 21 is connected with the top of the test straight pipe 26; the test straight pipe 26 is also vertically provided with at least 3 second test holes 18 along the side surface of the pipe wall, so that the top side, the middle and the bottom side of the pipe wall are provided with the test holes; the first steady flow straight pipe 15, the conical test pipe 19, the second steady flow straight pipe 20 and the test straight pipe 26 are transparent pipes.
As shown in fig. 1, in the multifunctional agricultural material suspension speed testing device of this embodiment, the number of the first testing holes of the first steady flow straight pipe 15 is 3, the number of the second testing holes 18 of the tapered testing pipe 19 is 5, and the number of the second testing holes 18 of the testing straight pipe is 7.
In the multifunctional agricultural material suspension speed testing device of the embodiment, the first testing hole 16 and the second testing hole 18 are used for being connected with a pitot tube air gauge 22, and the first testing hole 16 and the second testing hole 18 are blocked by a rubber plug 17 when not in use; the first test hole and the second test hole measure the wind speeds at different heights through a pitot tube anemoscope, the wind speeds at different sections can be measured for the conical test tube, the uniformity of a flow field in the tube can be further known, meanwhile, the separation wind speed of a mixed material can be measured through the first test hole at the lowest side, each test hole is provided with a rubber plug, when the wind speed at a certain height section needs to be measured, the corresponding rubber plug is opened for testing, and the design of the rubber plugs avoids the wind leakage of other test holes from influencing the flow field in the test unit.
In the multifunctional agricultural material suspension speed testing device of the embodiment, a rectifying grating 23 is arranged in the rectifying pipe 8; the uniformity of the flow field in the test unit pipe can be improved; wherein, the height of the rectification grids is that the grid spacing is more than or equal to 25mm, and the resistance to the flow field in the pipeline can be reduced.
In the multifunctional agricultural material suspension speed testing device of the embodiment, the flow dispersing blades 25 are arranged in the flow dispersing cover 21, and the material blocking net 24 is arranged below the flow dispersing blades 25; the flow dispersing blades and the rectifier tube play a role in rectification together, the uniformity of a flow field in the test unit is improved, the distance between the flow dispersing blades is more than or equal to 25mm, and the resistance to airflow can be reduced; the material blocking net plays a role of blocking materials, the material blocking net is not more than 8 meshes, and resistance to airflow can be reduced.
In the multifunctional agricultural material suspension speed testing device of the embodiment, a material placing net 9 is arranged in the feeding pipe 10; a feeding hole 13 is formed in the side wall of the feeding pipe 10 positioned above the material placing net 9; a material door 11 and a material door clamping groove 12 are further arranged at the position of a feeding hole 13 of the feeding pipe 10; during testing, the material door 11 is locked by the material door clamping groove 12 to seal the feeding hole 13.
In the multifunctional agricultural material suspension speed testing device of the embodiment, three groups of testing units are fixed on a rack 6 side by side, and the bottom sides of the three groups of testing units are respectively connected with a first flexible connecting pipe 5; the fan is adopted to provide aerodynamic force for the three groups of test units, and when the test device is used, the fan 1 is communicated with the first soft connecting pipe 5 of the corresponding test unit through the second soft connecting pipe 4; the mode that one fan is connected with different test units through the first flexible connecting pipe and the second flexible connecting pipe can save the number of the fans, and meanwhile, the mode of flexible connection enables the fan connecting process to be more convenient.
In the multifunctional agricultural material suspension speed testing device of the embodiment, the fan 1 is driven by the variable frequency motor 2; the testing device also comprises a frequency conversion cabinet 3 for controlling the variable frequency motor 2; the flow field wind speed in the test unit can be adjusted according to different materials.
In the multifunctional agricultural material suspension speed testing device of the embodiment, the pipes are connected by flanges; placed the sealed 14 that fills up of silica gel between the flange that is connected, wherein, adopt the mode that the flange links to each other, the dismouting of being convenient for, simultaneously, set up the silica gel pad between the flange that links to each other, play sealed effect on the one hand, on the other hand plays the damping effect, improves whole testing arrangement's stability.
The specific working process of the multifunctional agricultural material suspension speed testing device of the embodiment is as follows:
the first working mode is as follows: when the suspension speed of agricultural materials is measured, selecting a middle inner diameter test unit, firstly placing the materials to be measured on a material placing net through a feeding hole, closing a material door and locking, adjusting the power supply frequency through a frequency conversion cabinet, changing the wind speed provided by a fan, and after the materials are blown and completely enter a conical test tube, measuring the current speed, namely the suspension speed of the materials through a second test hole at the lowest part of the conical test tube by using a pitot tube anemometer;
the second working mode is as follows: when the separation wind speed of the mixed materials is researched, any one group of test units is selected to place the materials on a material placing net, the power supply frequency is adjusted, after the light materials are separated from the heavy materials, the wind speed required when the separation of the two materials is realized is measured through a first test hole at the lowest side of a flow stabilizing pipe;
the third working mode is as follows: when the wind speed uniformity in a pipeline of a test system is researched, wind speed measurement can be carried out on different point positions of the lower section of each test hole, and then comparative analysis is carried out;
the fourth working mode is as follows: when the flowing characteristics of materials under the action of air force are researched, the number of test units can be determined according to needs, if a selected test unit comprises a middle inner diameter test unit, a conical test pipe and a second flow stabilizing pipe of the middle inner diameter test unit are replaced by standby test straight pipes, the materials are placed on material placing nets of the three test units respectively, a power supply is started, the frequency of the power supply is adjusted through a frequency conversion cabinet, flowing characteristic observation and wind speed measurement are carried out on the three test systems respectively, and high-speed photographing and analysis are carried out by means of a high-speed camera and related software;
the above working modes are only references provided by this embodiment, and tests in other modes can be performed based on this testing apparatus, which is not described in detail herein.
The above-mentioned embodiments should not limit the present invention in any way, and all the technical solutions obtained by adopting equivalent replacement or equivalent conversion fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a multi-functional agricultural material suspension speed testing arrangement which characterized in that: comprises at least one group of test units; the testing unit comprises a collecting pipe, a rectifying pipe, a feeding pipe, a first steady flow straight pipe and a conical testing pipe which are sequentially connected from bottom to top; the first flow stabilizing pipe is vertically provided with a first testing hole along the side surface of the pipe wall; the conical test tube is vertically provided with a second test hole along the side surface of the tube wall; the number of the first test holes and the number of the second test holes are not less than 3, and at least one test hole is correspondingly arranged on the top side, the middle side and the bottom side of the pipe wall; the diameter of the conical test tube is small at the bottom and large at the top, and the top of the conical test tube is also connected with a second steady flow straight tube; the top of the second steady flow straight pipe is connected with a flow dispersing cover; the first steady flow straight pipe, the conical test pipe and the second steady flow straight pipe are transparent pipes.
2. The multifunctional agricultural material suspension speed testing device according to claim 1, characterized in that: the conical test tube is replaced by a test straight tube; the flow dispersing cover is connected with the top of the test straight pipe; the test straight pipe is also vertically provided with a second test hole along the side surface of the pipe wall; the number of the second test holes on the test straight pipe is not less than 3, so that at least one test hole is correspondingly arranged on the top side, the middle side and the bottom side of the pipe wall; the test straight tube is also a transparent tube.
3. The multifunctional agricultural material suspension speed testing device according to claim 2, characterized in that: the first test hole and the second test hole are used for being connected with a pitot tube air speed gauge, and the first test hole and the second test hole are plugged by rubber plugs when not in use.
4. The multifunctional agricultural material suspension speed testing device according to claim 2, characterized in that: and a rectifying grid is arranged in the rectifying tube.
5. The multifunctional agricultural material suspension speed testing device according to claim 2, characterized in that: the flow dispersing cover is internally provided with flow dispersing blades, and a material blocking net is arranged below the flow dispersing blades.
6. The multifunctional agricultural material suspension speed testing device according to claim 2, characterized in that: a material placing net is arranged in the feeding pipe; a feed inlet is formed in the side wall of the feed pipe, which is positioned above the material placing net; a material door and a material door clamping groove are further formed in the position, at the feeding hole, of the feeding pipe; during testing, the material door is locked by the material door clamping groove to seal the feeding hole.
7. The multifunctional agricultural material suspension speed testing device according to any one of claims 1 to 6, wherein: the testing device also comprises a rack and a fan; the bottom surface of the collecting pipe is fixed on the frame; a first flexible connecting pipe is also fixed on the frame; an air outlet of the fan is connected with a second flexible connecting pipe; the second flexible connecting pipe is communicated with the first flexible connecting pipe.
8. The multifunctional agricultural material suspension speed testing device according to claim 7, characterized in that: the testing device comprises a plurality of groups of testing units, and the inner diameters of the pipes of the testing units in different groups are different; the rack is fixedly provided with a plurality of first flexible connecting pipes which are arranged in parallel and correspond to the testing units; the first flexible connecting pipes are connected with the collecting pipes of the corresponding testing units.
9. The multifunctional agricultural material suspension speed testing device according to claim 8, characterized in that: the fan is driven by a variable frequency motor; the testing device also comprises a frequency conversion cabinet which is used for controlling the variable frequency motor.
10. The multifunctional agricultural material suspension speed testing device according to claim 8 or 9, wherein: all the pipes are connected by flanges; and a silica gel sealing gasket is arranged between the connected flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220017.9U CN211425815U (en) | 2020-02-27 | 2020-02-27 | Multifunctional agricultural material suspension speed testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220017.9U CN211425815U (en) | 2020-02-27 | 2020-02-27 | Multifunctional agricultural material suspension speed testing device |
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| CN211425815U true CN211425815U (en) | 2020-09-04 |
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| CN202020220017.9U Active CN211425815U (en) | 2020-02-27 | 2020-02-27 | Multifunctional agricultural material suspension speed testing device |
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| CN (1) | CN211425815U (en) |
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- 2020-02-27 CN CN202020220017.9U patent/CN211425815U/en active Active
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