CN117167314B - No-volute fan test installation structure and matched test method - Google Patents
No-volute fan test installation structure and matched test method Download PDFInfo
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- CN117167314B CN117167314B CN202311428910.5A CN202311428910A CN117167314B CN 117167314 B CN117167314 B CN 117167314B CN 202311428910 A CN202311428910 A CN 202311428910A CN 117167314 B CN117167314 B CN 117167314B
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000009434 installation Methods 0.000 title claims abstract description 15
- 238000010998 test method Methods 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 4
- 210000001503 joint Anatomy 0.000 claims description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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Abstract
The invention discloses a volute-free fan test mounting structure which comprises a chassis, a mounting panel, an air inlet ring, a movable bottom plate, a movable device and a seat frame, wherein the mounting panel is fixed on one side of the chassis, and the air inlet ring is mounted on the mounting panel; the moving device comprises an electric actuator, a driving rod and a driving block, wherein the electric actuator is arranged on the underframe and is in driving connection with the driving block through the driving rod, the driving block is fixedly arranged on the moving bottom plate, and the electric actuator is matched with the driving block through the driving rod. The invention also discloses a test method adopting the test installation structure of the volute-free fan. According to the invention, the resistance of the wind inlet ring and the wind inlet of the impeller in the tested fan is automatically adjusted by combining the test system, and the test matching is carried out by adopting the method provided by the invention, so that the test efficiency is improved, the error is greatly reduced, the best efficient point and the best noise point can be accurately obtained, the determination of the best overlap amount A is realized, and the development of the high-efficient performance of the fan is realized.
Description
Technical Field
The invention relates to the technical field of fan testing, in particular to a volute-free fan testing and installing structure and a matched testing method.
Background
The volute-free fan is industrial equipment commonly used in mechanical automation, and the performance of the volute-free fan is also very important in later use, so that the performance test before the fan leaves the factory is particularly important; the fan comprises motor and the impeller of being connected with the motor, at the in-process of test, the inlet air circle is installed on a panel, inlet air circle and panel are fixed on plenum device, the impeller passes through the motor to be installed on movable support, the best overlap quantity A of impeller and inlet air circle in the fan is actually adjusted, current mode is through observing test data, then cooperate manual mode to adjust the best overlap quantity A of impeller and inlet air circle, such mode is not only inefficiency, and the error that exists is more moreover, the accuracy of test remains to improve.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a volute-free fan test installation structure and a matched test method.
In order to solve the technical problems, the technical scheme of the invention is as follows: a test mounting structure of a volute-free fan comprises a bottom frame, a mounting panel, an air inlet ring, a movable bottom plate, a movable device and a seat frame, wherein the mounting panel is fixed on one side of the bottom frame, and the air inlet ring is mounted on the mounting panel; the mobile device is arranged on the underframe and can drive the mobile bottom plate to move relative to the underframe, a motor in the test fan is arranged on the seat frame, and an impeller of the fan is directly connected with the motor;
The moving device comprises an electric actuator, a driving rod and a driving block, wherein the electric actuator is arranged on the underframe and is in driving connection with the driving block through the driving rod, the driving block is fixedly arranged on the moving bottom plate, and the electric actuator is matched with the driving block through the driving rod so as to drive a fan tested on the seat frame to move, and then the overlap between an impeller on the motor and the air inlet ring is adjusted.
In the above-mentioned no spiral case fan test mounting structure, be provided with the sliding rail set spare of matching sliding connection between mobile bottom plate and the chassis.
In the above-mentioned no spiral case fan test mounting structure, be equipped with the linking bridge on the chassis, be equipped with the connecting block of installation actuating lever on chassis, the linking bridge respectively.
In the above-mentioned test and installation structure of the volute-free fan, the chassis is provided with a driving plate frame, and the driving plate frame is used for installing the electric actuator and a corresponding one of the connecting blocks.
The invention also provides a testing method of the volute-free wind, which comprises the following steps: the performance of the fan is improved by adjusting the overlap amount A of the air inlet ring and the impeller air inlet in the tested fan, when A is more than 0, namely the overlap amount exists between the air inlet ring and the impeller, and when A=0, namely the air inlet ring outlet and the impeller inlet are straight and have no overlap amount, the specific steps are as follows:
Step one: the motor in the tested fan is arranged on the seat frame, and the center of the air inlet ring is ensured to coincide with the center of the impeller during the installation;
Step two: the motor-driven actuator is matched with the test system to control the seat frame to move, firstly, the impeller on the motor in the test fan and the inlet of the air inlet ring are in a butt joint mode, namely A=0, the rotating speed of the fan is ensured to be constant by adjusting the resistance of the standard air performance device, and the test system obtains the air performance of the fan, such as flow, pressure, efficiency and noise;
Step three: according to the data of the installation test in the second step, selecting the highest efficiency point of the volute-free fan, wherein the area of the highest efficiency point of the volute-free fan is the maximum area of fan power; ensuring the rotation speed of the fan unchanged, obtaining the efficiency and the optimal noise point of the fan without the volute by adjusting the resistance of the air chamber, controlling the seat frame to move by the electric actuator matched with the test system, adjusting the distance between the impeller and the air inlet ring of the fan, gradually increasing the overlap amount of the air inlet ring and the impeller, obtaining the corresponding efficiency and noise of the fan without the volute by the test system, and recording the electric adjustment distance;
Step four: and after the test is finished, the test system automatically draws a distance-efficiency curve, a distance-power curve and a distance-noise curve, actively identifies an optimal curve according to the conditions of pursuing high efficiency or low noise, and realizes the determination of the optimal overlap amount A.
The beneficial effects of the invention are as follows:
The test installation structure of the volute fan designed by the invention can be matched with a test system to automatically adjust and regulate the overlap amount A of the air inlet ring and the air inlet of the impeller in the tested fan, and the test matching is carried out by adopting the method provided by the invention, so that the test efficiency is improved, the error is greatly reduced, the optimal high-efficiency point can be accurately found, the determination of the optimal overlap amount A is realized, and the performance of the fan is improved.
Drawings
FIG. 1 is a perspective view of the present invention;
fig. 2 is a perspective view of another aspect of the present invention.
Detailed Description
The invention is further elucidated with reference to the drawings.
Referring to fig. 1 and 2, the present invention provides a test installation structure of a volute-free fan, which is characterized in that: the air inlet device comprises a chassis 1, a mounting panel 3, an air inlet ring 4, a movable bottom plate 5, a movable device and a seat frame 6, wherein the mounting panel 3 is fixed on one side of the chassis 1, the air inlet ring 4 is mounted on the mounting panel 3, and the movable device is mounted on the chassis 1.
The moving device comprises an electric actuator 7, a driving rod 8 and a driving block 9, wherein the electric actuator 7 is arranged on the chassis 1 and is in driving connection with the driving block 9 through the driving rod 8, the driving block 9 is fixedly arranged on the moving base plate 5, the electric actuator 7 can drive the moving base plate 5 to move relative to the chassis 1 through the matching of the driving rod 8 and the driving block 9, a motor 10 in a tested fan is arranged on the chassis 6, and an impeller is directly connected with the motor, so that the fan tested on the chassis 6 is driven to move, and the overlap between the impeller 11 on the motor 10 and the air inlet ring 4 is regulated.
Specifically, a sliding rail assembly 12 in matched sliding connection is arranged between the movable bottom plate 5 and the underframe 1, so that sliding connection between the movable bottom plate 5 and the underframe 1 is realized.
Specifically, a connecting bracket 16 is arranged on the underframe 1, and connecting blocks 13 for installing the driving rod 8 are respectively arranged on the underframe 1 and the connecting bracket 16; the chassis 1 is provided with a driving plate frame 14, and the driving plate frame 14 is used for installing the electric actuator 7 and one of the corresponding connecting blocks 13.
A testing method adopting the testing and installing structure of the volute fan comprises the following steps: the performance of the fan is improved by adjusting the overlap amount A of the air inlet ring 4 and the air inlet of the impeller 11, when A is more than 0, namely the overlap amount exists between the air inlet ring and the impeller, and when A=0, namely the overlap amount exists between the air inlet ring outlet and the impeller inlet, the specific steps are as follows:
step one: as shown in fig. 1, a motor 10 in a tested fan is arranged on a seat frame 6, and the center of an air inlet ring 4 is ensured to coincide with the center of an impeller 11 during the installation;
Step two: the motor-driven actuator 7 is matched with the test system to control the seat frame 6 to move, firstly, the impeller 11 on the motor 10 in the test fan and the inlet of the air inlet ring 4 are in a butt joint mode, namely A=0, the rotating speed of the fan is ensured to be constant by adjusting the resistance of the standard air performance device, and the test system obtains the air performance of the fan, such as flow, pressure, efficiency and noise;
Step three: according to the data of the installation test in the second step, selecting the highest efficiency point of the volute-free fan, wherein the area of the highest efficiency point of the volute-free fan is the maximum area of fan power; ensuring the rotation speed of the fan unchanged, obtaining the efficiency and the optimal noise point of the fan without the volute by adjusting the resistance of the air chamber, controlling the seat frame 6 to move by the electric actuator 7 in cooperation with the testing system, adjusting the distance between the impeller 11 and the air inlet ring 4 on the motor 10, gradually increasing the overlap amount of the air inlet ring 4 and the impeller 11, obtaining the corresponding efficiency and noise of the fan without the volute by the testing system, and recording the electric adjustment distance;
Step four: and after the test is finished, the test system automatically draws a distance-efficiency curve, a distance-power curve and a distance-noise curve, actively identifies an optimal curve according to the conditions of pursuing high efficiency or low noise, and realizes the determination of the optimal overlap amount A.
The above describes in detail a test installation structure and a matched test method for a volute-free fan provided by the embodiment of the present invention, and specific examples are applied to illustrate the principle and implementation of the present invention, and the description of the above embodiments is only used to help understand the technical scheme disclosed by the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (5)
1. A no spiral case fan test mounting structure, its characterized in that: the device comprises an underframe (1), a mounting panel (3), an air inlet ring (4), a movable bottom plate (5), a movable device and a seat frame (6), wherein the mounting panel (3) is fixed on one side of the underframe (1), and the air inlet ring (4) is mounted on the mounting panel (3); the mobile device is arranged on the underframe (1) and can drive the mobile bottom plate (5) to move relative to the underframe (1), the tested motor is arranged on the seat frame (6), and the impeller in the fan is directly connected with the motor;
The mobile device comprises an electric actuator (7), a driving rod (8) and a driving block (9), wherein the electric actuator (7) is arranged on the underframe (1) and is in driving connection with the driving block (9) through the driving rod (8), the driving block (9) is fixedly arranged on the mobile base plate (5), the electric actuator (7) is matched with the driving block (9) through the driving rod (8), so that a fan tested on the seat frame (6) is driven to move, and the overlap between an impeller (11) on the motor (10) and the air inlet ring (4) is regulated.
2. The volute-less fan test mounting structure of claim 1, wherein: a sliding rail component (12) which is connected in a matching sliding way is arranged between the movable bottom plate (5) and the underframe (1).
3. The volute-less fan test mounting structure of claim 2, wherein: the chassis (1) is provided with a connecting bracket (16), and the chassis (1) and the connecting bracket (16) are respectively provided with a connecting block (13) for installing the driving rod (8).
4. A no-volute fan test mounting structure according to claim 3, wherein: the chassis (1) is provided with a driving plate frame (14), and the driving plate frame (14) is used for installing the electric actuator (7) and a connecting block (13) corresponding to the electric actuator.
5. A test method using the test mounting structure of a no-volute fan according to any one of claims 1 to 4, characterized in that: the method comprises the following steps: the performance of the fan is improved by adjusting the overlap amount A of the air inlet ring (4) and the air inlet of the impeller (11), when A is more than 0, namely the overlap amount exists between the air inlet ring and the impeller, and when A=0, namely the inlet of the air inlet ring and the inlet of the impeller are straight and have no overlap amount, the specific steps are as follows:
step one: the motor (10) in the tested fan is arranged on the seat frame (6), and the center of the air inlet ring (4) is ensured to coincide with the center of the impeller (11) during the installation;
Step two: the motor (7) is matched with the test system to control the seat frame (6) to move, firstly, the impeller (11) of the motor (10) in the test fan and the inlet of the air inlet ring (4) are in a butt joint mode, namely A=0, the rotating speed of the fan is ensured to be constant by adjusting the resistance of the standard air performance device, and the test system obtains the air performance of the fan, such as flow, pressure, efficiency, noise and noise;
Step three: according to the data of the installation test in the second step, selecting the highest efficiency point of the volute-free fan, wherein the area of the highest efficiency point of the volute-free fan is the maximum area of fan power; the constant rotating speed of the fan is ensured, and the efficiency and the optimal noise point of the volute-free fan are obtained by adjusting the resistance of the air chamber; the electric actuator (7) is matched with the test system to control the seat frame (6) to move, the distance between the impeller (11) on the motor (10) and the air inlet ring (4) in the fan is adjusted, the overlap amount of the air inlet ring (4) and the impeller (11) is gradually changed, the test system can obtain the efficiency and noise of the corresponding volute-free fan by adjusting the resistance of the air chamber, and the electric adjustment distance is recorded;
step four: and after the test is finished, the test system automatically draws a distance-efficiency curve, a distance-power curve and a distance-noise curve, and actively identifies an optimal curve according to conditions for pursuing high efficiency or low noise, so that the determination of the optimal lapping amount A is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311428910.5A CN117167314B (en) | 2023-10-31 | 2023-10-31 | No-volute fan test installation structure and matched test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311428910.5A CN117167314B (en) | 2023-10-31 | 2023-10-31 | No-volute fan test installation structure and matched test method |
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| CN117167314A CN117167314A (en) | 2023-12-05 |
| CN117167314B true CN117167314B (en) | 2024-05-17 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201935263U (en) * | 2010-12-28 | 2011-08-17 | 比亚迪股份有限公司 | Exhaust device of range hood |
| CN203114744U (en) * | 2013-03-15 | 2013-08-07 | 贺红宇 | Multifunctional rectifier for volute-free fan |
| CN112196821A (en) * | 2020-09-30 | 2021-01-08 | 江苏徐工工程机械研究院有限公司 | Heat dissipation and noise cooperative matching device, optimization method and system |
| CN113623257A (en) * | 2021-08-12 | 2021-11-09 | 上海新笙节能环保科技有限公司 | Fan performance detection equipment |
| CN219101667U (en) * | 2023-01-10 | 2023-05-30 | 山东省章丘鼓风机股份有限公司 | Ventilator test device |
-
2023
- 2023-10-31 CN CN202311428910.5A patent/CN117167314B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201935263U (en) * | 2010-12-28 | 2011-08-17 | 比亚迪股份有限公司 | Exhaust device of range hood |
| CN203114744U (en) * | 2013-03-15 | 2013-08-07 | 贺红宇 | Multifunctional rectifier for volute-free fan |
| CN112196821A (en) * | 2020-09-30 | 2021-01-08 | 江苏徐工工程机械研究院有限公司 | Heat dissipation and noise cooperative matching device, optimization method and system |
| CN113623257A (en) * | 2021-08-12 | 2021-11-09 | 上海新笙节能环保科技有限公司 | Fan performance detection equipment |
| CN219101667U (en) * | 2023-01-10 | 2023-05-30 | 山东省章丘鼓风机股份有限公司 | Ventilator test device |
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| CN117167314A (en) | 2023-12-05 |
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