CN114412819A - Impeller efficiency testing device - Google Patents
Impeller efficiency testing device Download PDFInfo
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- CN114412819A CN114412819A CN202210160549.1A CN202210160549A CN114412819A CN 114412819 A CN114412819 A CN 114412819A CN 202210160549 A CN202210160549 A CN 202210160549A CN 114412819 A CN114412819 A CN 114412819A
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- impeller
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- testing device
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- efficiency testing
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 238000009423 ventilation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000013139 quantization Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses an impeller efficiency testing device, and belongs to the technical field of impeller testing. The impeller efficiency testing device comprises a driving piece, wherein a torque sensor is arranged at the output end of the driving piece, and the other end of the torque sensor is connected with an impeller. The driving piece is used for driving the impeller to rotate, the air inlet of the impeller is communicated with one end of the air pipe, and the other end of the air pipe is communicated with the outside so that air flow can flow into the air pipe. The wind pipe is internally provided with a pressure sensor for measuring the pressure and the air quantity of the air flow in the wind pipe, the torque sensor is used for measuring the shaft power, and the efficiency of the impeller can be obtained according to the shaft power and the pressure and the air quantity of the air flow in the wind pipe. The impeller can independently test the working efficiency by the aid of the arrangement, so that the process of testing the efficiency of the impeller is simplified, the efficiency of testing the efficiency of the impeller is improved, accurate digital quantization can be performed on the efficiency of the impeller, and the accuracy of testing the efficiency of the impeller is improved.
Description
Technical Field
The invention relates to the technical field of impeller testing, in particular to an impeller efficiency testing device.
Background
Impellers are commonly assembled with electric motors to form fans, which are widely used for cooling and ventilation in construction processes, manufacturing processes and household appliances. In different working conditions, an impeller with proper working efficiency is selected. However, in general, the working efficiency of different impellers can only be determined by measuring the working efficiency of the fan. Obviously, the operating efficiency of the fan is also affected by the motor, and therefore the operating efficiency of the impeller cannot be quantified by numbers alone.
Therefore, it is desirable to provide an impeller efficiency testing device to solve the above problems.
Disclosure of Invention
The invention aims to provide an impeller efficiency testing device, which solves the problem that the working efficiency of an impeller cannot be accurately quantified by using numbers.
In order to realize the purpose, the following technical scheme is provided:
an impeller efficiency testing apparatus comprising:
the output end of the driving piece is provided with a torque sensor, and the other end of the torque sensor is connected with the impeller; the driving piece is used for driving the impeller to rotate; the torque sensor is used for measuring shaft power;
one end of the air pipe is communicated with the outside, the other end of the air pipe is communicated with an air inlet of the impeller, and the impeller rotates to enable air flow to flow into the air pipe;
the pressure sensor is arranged in the air pipe and used for measuring the pressure and the air quantity of the airflow in the air pipe;
and the working efficiency of the impeller can be obtained according to the shaft power, the pressure of the airflow in the air pipe and the air volume.
As an alternative of the impeller efficiency testing device, the impeller efficiency testing device further comprises an air deflector, wherein a first opening is formed in one end, connected with the impeller, of the air pipe, and the air deflector is connected with the air pipe so as to plug the first opening; and a plurality of ventilation holes are formed in the air deflector and used for communicating the air inlet of the impeller with the air pipe.
As an alternative of the above impeller efficiency testing apparatus, the plurality of ventilation holes are arranged in a circular array to form a circular ventilation area concentric with the air deflector.
As an alternative of the above impeller efficiency testing device, the air deflector is detachably connected to the air pipe.
As an alternative of the impeller efficiency testing device, a plurality of first fastening holes are formed in the edge of the air deflector at intervals along the circumferential direction of the air deflector, a plurality of second fastening holes are formed in the air pipe close to the first opening, and first fastening pieces sequentially penetrate through the first fastening holes and the second fastening holes.
As an alternative of the impeller efficiency testing device, the impeller efficiency testing device further comprises a connecting piece, wherein one end of the connecting piece is outwards convexly provided with a first flange, one side of the impeller, which is close to the air pipe, is outwards convexly provided with a second flange, and the first flange is sleeved with the second flange; the other end of the connecting piece is connected with the air deflector to cover the circular ventilation area.
As an alternative of the above impeller efficiency testing device, the connecting piece is detachably connected to the air deflector.
As an alternative of the impeller efficiency testing device, one side of the connecting piece connected with the air deflector extends outwards along the radial direction of the connecting piece to form a convex edge, a plurality of first connecting holes are formed in the convex edge at intervals along the circumferential direction of the convex edge, a plurality of second connecting holes are formed in the air deflector, and second fasteners sequentially penetrate through the first connecting holes and the second connecting holes.
As an alternative of the impeller efficiency testing device, the impeller efficiency testing device further comprises a support frame, wherein the support frame comprises a bearing plate, and a first support plate and a second support plate which are arranged on the bearing plate at intervals along a first direction; the first supporting plate is provided with a first mounting hole, and the driving piece is arranged in the first mounting hole; a second mounting hole is formed in the second supporting plate, and a rotating shaft of the impeller penetrates through the second mounting hole; and a third supporting plate is arranged between the first supporting plate and the second supporting plate, a supporting block is arranged on the third supporting plate, and the supporting block is detachably connected with the torque sensor.
As an alternative to the above impeller efficiency testing apparatus, the support block is detachably connected to the third support plate.
Compared with the prior art, the invention has the beneficial effects that:
the impeller efficiency testing device provided by the invention comprises a driving piece, wherein the output end of the driving piece is provided with a torque sensor, and the other end of the torque sensor is connected with an impeller. The driving piece is used for driving the impeller to rotate, the air inlet of the impeller is communicated with one end of the air pipe, and the other end of the air pipe is communicated with the outside so that air flow can flow into the air pipe. The wind pipe is internally provided with a pressure sensor for measuring the pressure and the air quantity of the air flow in the wind pipe, the torque sensor is used for measuring the shaft power, and the efficiency of the impeller can be obtained according to the shaft power and the pressure and the air quantity of the air flow in the wind pipe. The impeller can independently test the working efficiency by the aid of the arrangement, so that the process of testing the efficiency of the impeller is simplified, the efficiency of testing the efficiency of the impeller is improved, accurate digital quantization can be performed on the efficiency of the impeller, and the accuracy of testing the efficiency of the impeller is improved.
Drawings
FIG. 1 is a schematic structural diagram of an impeller efficiency testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an air deflector according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a connector according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an impeller according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a support frame in an embodiment of the invention.
Reference numerals:
1. a support frame; 2. a drive member; 3. an impeller; 4. a torque sensor; 5. a connecting member; 6. an air deflector; 7. an air duct;
11. a carrier plate; 12. a first support plate; 121. a first mounting hole; 13. a second support plate; 131. a second mounting hole; 14. a third support plate; 141. a support block;
31. a second flange;
51. a first flange; 52. a convex edge; 521. a first connection hole;
61. a vent hole; 62. a second connection hole; 63. a first fastening hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Nowadays, the work efficiency of different impellers can only be determined by measuring the work efficiency of the fan. The fan is formed by assembling the impeller and the motor, and when different motors and the same impeller are selected to be assembled respectively, the working efficiency of the formed fan is changed continuously. Obviously, the operating efficiency of the fan is also affected by the motor, and therefore the operating efficiency of the impeller cannot be quantified by numbers alone.
As shown in fig. 1 to 5, the present embodiment provides an impeller efficiency testing apparatus to solve the problem that the work efficiency of the impeller 3 cannot be accurately quantified by using numbers. Impeller efficiency testing arrangement includes driving piece 2, and the output of driving piece 2 is equipped with torque sensor 4, and torque sensor 4's the other end links to each other with impeller 3. The driving part 2 is used for driving the impeller 3 to rotate, an air inlet of the impeller 3 is communicated with one end of the air pipe 7, and the other end of the air pipe 7 is communicated with the outside, so that air flow flows into the air pipe 7. The air pipe 7 is internally provided with a pressure sensor for measuring the pressure and the air volume of the air flow in the air pipe 7, the torque sensor 4 is used for measuring the shaft power, the working efficiency of the impeller 3 is equal to the product of the pressure of the air flow and the air volume, and then the product is divided by the shaft power, namely the working efficiency of the impeller 3 can be obtained according to the shaft power and the pressure and the air volume of the air flow in the air pipe 7. Above-mentioned setting makes impeller 3 can independently carry out work efficiency's test, has not only simplified the process of 3 efficiency test of impeller, has improved the efficiency of 3 efficiency test of impeller, can also carry out accurate digital quantization to 3 efficiency of impeller, has improved the accurate nature of 3 efficiency test of impeller.
Optionally, the impeller efficiency testing device further comprises an air guide plate 6, a first opening is formed in one end, connected with the impeller 3, of the air pipe 7, and the air guide plate 6 is connected with the air pipe 7 to seal the first opening, so that the connection between the air pipe 7 and the air guide plate 6 is realized. Referring to fig. 2, the air deflector 6 is provided with a plurality of ventilation holes 61 for communicating the air inlet of the impeller 3 with the air duct 7, so that the air flow flows out of the air duct 7. Further alternatively, the plurality of ventilation holes 61 are arranged in a circular array to form a circular ventilation area concentric with the air deflection plate 6. The circular ventilation area is in a grid shape, so that air flow can pass through, sundries can be isolated outside the air guide plate 6, the impeller 3 is prevented from being damaged by the sundries, and the service life of the impeller 3 is prolonged. Further, the ventilation holes 61 are square holes, and the design of the square holes has a larger ventilation amount compared with the circular holes or the triangular holes.
Further optionally, the air deflector 6 is detachably connected with the air pipe 7, so that the air deflector 6 and the air pipe 7 can be conveniently assembled and disassembled, the assembling efficiency of the impeller efficiency testing device is improved, the air deflector 6 with different circular ventilation area areas is convenient to replace, the impeller efficiency testing device can test impellers 3 with different sizes, and the universality of the impeller efficiency testing device is improved. Specifically, a plurality of first fastening holes 63 are formed in the edge of the air deflector 6 at intervals along the circumferential direction of the air deflector, a plurality of second fastening holes are formed in the position, close to the first opening, of the air pipe 7, and the first fastening pieces sequentially penetrate through the first fastening holes 63 and the second fastening holes so that the air deflector 6 can be detachably connected with the air pipe 7. In the present embodiment, the plurality of first fastening holes 63 are uniformly arranged along the circumferential direction of the air deflector 6, so that the air deflector 6 is uniformly stressed. Further alternatively, the first fastening members are arranged corresponding to the first fastening holes 63 and the second fastening holes one to one, so as to ensure the stability of the connection between the air deflector 6 and the air duct 7. The first fastening member may be a bolt, a screw, or other structures having a fastening function, which is not limited herein.
Further optionally, the impeller efficiency testing device further includes a connecting member 5, as can be seen from fig. 3 and 4, one end of the connecting member 5 is outwardly protruded to form a first flange 51, one side of the impeller 3 close to the air duct 7 is outwardly protruded to form a second flange 31, and the first flange 51 is sleeved with the second flange 31; the other end of the connecting piece 5 is connected with the air deflector 6 to cover a circular ventilation area. The impeller 3 is connected with the guide plate through the connecting piece 5, air flow loss is avoided, and testing accuracy of the impeller efficiency testing device is improved.
Further optionally, the connecting member 5 is detachably connected to the air deflection plate 6. Not only be convenient for the equipment and the dismantlement of connecting piece 5 and aviation baffle 6, improved impeller efficiency testing arrangement's packaging efficiency, still be convenient for change and have not unidimensional connecting piece 5 for impeller efficiency testing arrangement can be to not unidimensional impeller 3 test, with the commonality that improves impeller efficiency testing arrangement. Specifically, one side of the connecting piece 5 connected with the air deflector 6 extends outwards along the radial direction thereof to form a convex edge 52, a plurality of first connecting holes 521 are arranged on the convex edge 52 at intervals along the circumferential direction thereof, a plurality of second connecting holes 62 are arranged on the air deflector 6, and the second fastening piece sequentially passes through the first connecting holes 521 and the second connecting holes 62, so as to realize the detachable connection of the connecting piece 5 and the air deflector 6. In the present embodiment, the plurality of first connection holes 521 are uniformly arranged in the circumferential direction of the convex edge 52, so that the force applied to the connection member 5 is uniform. Further optionally, the second fastening members are disposed in one-to-one correspondence with the first connection holes 521 and the second connection holes 62, so as to ensure the stability of the connection between the connecting member 5 and the air deflector 6. The second fastening member may be a bolt, a screw, or other structures with fastening functions, which is not limited herein.
Further optionally, the impeller efficiency testing device further comprises a support frame 1 for supporting the driving member 2, the torque sensor 4 and the impeller 3. As shown in fig. 5, in particular, the supporting frame 1 includes a bearing plate 11 and a first supporting plate 12 and a second supporting plate 13 spaced apart from each other along a first direction (i.e., an X direction in the drawing) on the bearing plate 11. The first supporting plate 12 is provided with a first mounting hole 121, and the driving member 2 is disposed in the first mounting hole 121. The second support plate 13 is provided with a second mounting hole 131, and the rotating shaft of the impeller 3 penetrates through the second mounting hole 131. And the first mounting hole 121 and the second mounting hole 131 are coaxially arranged, so that the driving part 2 and the impeller 3 are on the same axis, and the testing accuracy of the impeller efficiency testing device is improved. A third supporting plate 14 is arranged between the first supporting plate 12 and the second supporting plate 13, a supporting block 141 is arranged on the third supporting plate 14, and the supporting block 141 is detachably connected with the torque sensor 4, so that the torque sensor 4 is supported.
Further alternatively, the supporting block 141 is detachably connected to the third supporting plate 14, so that the supporting blocks 141 with different heights can be replaced, the driving member 2, the torque sensor 4 and the impeller 3 are on the same axis, and the testing accuracy of the impeller efficiency testing device can be improved.
It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An impeller efficiency testing device, comprising:
the output end of the driving piece (2) is provided with a torque sensor (4), and the other end of the torque sensor (4) is connected with the impeller (3); the driving piece (2) is used for driving the impeller (3) to rotate; the torque sensor (4) is used for measuring shaft power;
one end of the air pipe (7) is communicated with the outside, the other end of the air pipe (7) is communicated with an air inlet of the impeller (3), and the impeller (3) rotates to enable air flow to flow into the air pipe (7);
the pressure sensor is arranged in the air pipe (7) and used for measuring the pressure and the air quantity of the air flow in the air pipe (7);
the working efficiency of the impeller (3) can be obtained according to the shaft power, the pressure of the airflow in the air pipe (7) and the air volume.
2. The impeller efficiency testing device according to claim 1, further comprising an air deflector (6), wherein a first opening is formed in one end of the air duct (7) connected with the impeller (3), and the air deflector (6) is connected with the air duct (7) to seal the first opening; and a plurality of ventilation holes (61) are formed in the air deflector (6) and used for communicating the air inlet of the impeller (3) with the air pipe (7).
3. The impeller efficiency testing device according to claim 2, characterized in that a plurality of the ventilation holes (61) are arranged in a circular array to form a circular ventilation area concentric with the air deflector (6).
4. The impeller efficiency testing device according to claim 2, characterized in that the air deflector (6) is detachably connected to the air duct (7).
5. The impeller efficiency testing device according to claim 4, wherein a plurality of first fastening holes (63) are formed at the edge of the air deflector (6) at intervals along the circumferential direction of the air deflector, a plurality of second fastening holes are formed in the air pipe (7) close to the first opening, and the first fastening pieces sequentially penetrate through the first fastening holes (63) and the second fastening holes.
6. The impeller efficiency testing device according to claim 3, further comprising a connecting piece (5), wherein one end of the connecting piece (5) is provided with a first flange (51) in an outward protruding manner, one side of the impeller (3) close to the air pipe (7) is provided with a second flange (31) in an outward protruding manner, and the first flange (51) is sleeved with the second flange (31); the other end of the connecting piece (5) is connected with the air deflector (6) to cover the circular ventilation area.
7. The impeller efficiency testing device according to claim 6, characterized in that the connecting piece (5) is detachably connected with the air deflector (6).
8. The impeller efficiency testing device according to claim 7, wherein one side of the connecting piece (5) connected with the air deflector (6) extends outwards along the radial direction thereof to form a convex edge (52), a plurality of first connecting holes (521) are formed in the convex edge (52) at intervals along the circumferential direction thereof, a plurality of second connecting holes (62) are formed in the air deflector (6), and second fasteners sequentially pass through the first connecting holes (521) and the second connecting holes (62).
9. The impeller efficiency testing device according to claim 1, further comprising a support frame (1), wherein the support frame (1) comprises a bearing plate (11) and a first support plate (12) and a second support plate (13) which are arranged on the bearing plate (11) at intervals along a first direction; a first mounting hole (121) is formed in the first supporting plate (12), and the driving piece (2) is arranged in the first mounting hole (121); a second mounting hole (131) is formed in the second support plate (13), and a rotating shaft of the impeller (3) penetrates through the second mounting hole (131); a third supporting plate (14) is arranged between the first supporting plate (12) and the second supporting plate (13), a supporting block (141) is arranged on the third supporting plate (14), and the supporting block (141) is detachably connected with the torque sensor (4).
10. The impeller efficiency testing device according to claim 9, characterized in that the support block (141) is detachably connected with the third support plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160549.1A CN114412819A (en) | 2022-02-22 | 2022-02-22 | Impeller efficiency testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160549.1A CN114412819A (en) | 2022-02-22 | 2022-02-22 | Impeller efficiency testing device |
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| Publication Number | Publication Date |
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| CN114412819A true CN114412819A (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210160549.1A Pending CN114412819A (en) | 2022-02-22 | 2022-02-22 | Impeller efficiency testing device |
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| Country | Link |
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| CN (1) | CN114412819A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791915A (en) * | 2015-05-08 | 2015-07-22 | 珠海格力电器股份有限公司 | Air conditioner |
| CN105179288A (en) * | 2015-08-05 | 2015-12-23 | 上海马陆日用友捷汽车电气有限公司 | Support for blade testing and blade testing device comprising support |
| CN207906130U (en) * | 2018-01-23 | 2018-09-25 | 中国东方电气集团有限公司 | A kind of axial flow blower test system |
| CN216922573U (en) * | 2022-02-22 | 2022-07-08 | 江苏富泰净化科技股份有限公司 | Impeller efficiency testing device |
-
2022
- 2022-02-22 CN CN202210160549.1A patent/CN114412819A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791915A (en) * | 2015-05-08 | 2015-07-22 | 珠海格力电器股份有限公司 | Air conditioner |
| CN105179288A (en) * | 2015-08-05 | 2015-12-23 | 上海马陆日用友捷汽车电气有限公司 | Support for blade testing and blade testing device comprising support |
| CN207906130U (en) * | 2018-01-23 | 2018-09-25 | 中国东方电气集团有限公司 | A kind of axial flow blower test system |
| CN216922573U (en) * | 2022-02-22 | 2022-07-08 | 江苏富泰净化科技股份有限公司 | Impeller efficiency testing device |
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