CN219932494U - Fan performance testing device - Google Patents
Fan performance testing device Download PDFInfo
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- CN219932494U CN219932494U CN202321296575.3U CN202321296575U CN219932494U CN 219932494 U CN219932494 U CN 219932494U CN 202321296575 U CN202321296575 U CN 202321296575U CN 219932494 U CN219932494 U CN 219932494U
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 230000003068 static effect Effects 0.000 claims abstract description 36
- 238000007664 blowing Methods 0.000 claims description 12
- 238000011056 performance test Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a fan performance testing device which comprises an air chamber box body, wherein the inside of the air chamber box body is divided into a first chamber and a second chamber through a baffle plate, a differential pressure sensor is arranged on the baffle plate, a vent hole on one side of the second chamber is connected with an auxiliary air box, a plurality of rectifying porous plates are arranged in the first chamber and the second chamber, a static ring is arranged on one side, close to the vent hole, of the outer side of the first chamber and one side, close to the baffle plate, of the second chamber, a plurality of mounting holes are formed in the outer side of the first chamber and the second chamber, flow nozzles are arranged on the mounting holes, an observation window is formed in one side of the second chamber, a temperature and humidity sensor is arranged on the rectifying porous plates in the second chamber, and a data acquisition instrument and a controller are arranged on one side of the air chamber box body.
Description
Technical Field
The utility model relates to the technical field of fan performance test, in particular to a fan performance test device.
Background
The fan is a machine which converts rotary mechanical energy into gas pressure energy and kinetic energy and conveys gas out, and before the fan leaves the factory, the fan is required to pass through a performance test, so that the fan can safely and stably run and reach expected performance.
When other fan power products such as scavenger fan, air conditioner, radiator fan, range hood, air purifier are produced, the performance of fan directly influences quality and the performance of product, and when carrying out fan performance test, the inspection scope is narrow, and degree of automation is lower, adopts artifical measurement, calculation, judgement mostly, leads to measuring error big, and test process is complicated, and test cycle is long, can not detect the actual efficiency of fan simultaneously. The fan performance test device of the fan production enterprise is less optimistic in condition, a micro-manometer is adopted for measuring the wind pressure, and even a U-shaped water pipe with low error and precision is adopted for measuring the wind pressure; the data processing is to use the electronic form to compile a simple formula, some can only use a calculator to calculate, and related coefficients in the checking process are ignored, so that the measuring and calculating errors are large, the final result deviates from the actual result far, the purpose of guiding production cannot be achieved, and the requirement of the current country for building an energy-saving society cannot be met.
Disclosure of Invention
In order to overcome the defects, the utility model provides a fan performance testing device which can fully automatically test the wind pressure-wind quantity and the power-wind quantity of a fan.
The utility model provides a fan performance testing device which comprises an air chamber box body, wherein ventilation openings are formed in two ends of the air chamber box body, the air chamber box body is divided into a first chamber and a second chamber through a baffle plate, a differential pressure sensor is arranged on the baffle plate, a connecting cylinder used for being connected with a tested fan is arranged on the ventilation opening on one side of the first chamber, the ventilation opening on one side of the second chamber is connected with an auxiliary air box, a plurality of rectifying porous plates are arranged in the first chamber and the second chamber, static pressure rings are arranged on the positions, close to the ventilation openings, of the outer sides of the first chamber and the second chamber, a plurality of mounting holes are formed in the positions, close to the baffle plate, of the outer sides of the first chamber and the second chamber, a flow nozzle is arranged on the mounting holes, an observation window is formed in one side of the second chamber, a temperature and humidity sensor is arranged on the rectifying porous plate in the second chamber, and a data acquisition instrument and a controller are arranged on the lower side of the air chamber box body.
Preferably, the rectification perforated plate is provided with two holes, the holes on the rectification perforated plate are regular hexagons, the area of each hole occupies not less than forty percent of the area of the rectification perforated plate, the uniformity of air flow can be improved through the regular hexagons on the rectification perforated plate, the area of each hole occupies high, and the loss of air flow can be reduced.
Preferably, the static pressure ring is provided with a plurality of static pressure pipes which are uniformly distributed, the static pressure pipe is provided with a pressure taking port corresponding to the surface position of the air chamber box body, the pressure taking port is connected with the static pressure pipe, the output end of the static pressure ring is connected with the static pressure sensor, the air chamber box body is externally pressure-taken, the structure in the air chamber box body can be reduced, the error of measured data is reduced, the static pressure pipes are uniformly distributed in the air chamber box body for a circle, and a plurality of pressure taking points can be used for accurately measuring the pressure data in the air chamber box body.
Preferably, the left end and the right end of the differential pressure sensor are respectively positioned in the first cavity and the second cavity, and the differential pressure sensor can simultaneously measure the air pressure at the left side and the right side of the baffle plate to obtain real-time differential pressure.
Preferably, the static pressure sensor, the differential pressure sensor and the temperature and humidity sensor are respectively connected with the data acquisition instrument through wires, the data acquisition instrument is connected with the industrial computer, and the industrial computer can receive data of the static pressure sensor, the differential pressure sensor and the temperature and humidity sensor for analysis and drawing of performance curves according to program setting.
Preferably, the flow nozzle is connected with the controller through a wire, the controller is connected with the industrial computer, the flow nozzle can ensure the lowest measurement pressure loss in the measuring range of the differential pressure sensor, and the industrial computer can automatically control the flow nozzle according to program setting.
Preferably, the auxiliary bellows is connected with the air chamber box and is equipped with the filter screen to the side vent, be equipped with in the auxiliary bellows and do the first fan of function of breathing in and do the second fan of function of blowing, be equipped with the auxiliary valve that is used for controlling air flow in the middle of first fan and the second fan, first fan, second fan and auxiliary valve all are connected with the controller through the wire, do the first fan of function of breathing in and do the second fan of function of blowing and can directly test the fan and breathe in and the capability test of blowing, need not the change equipment.
Drawings
FIG. 1 is a schematic view of the whole structure of a belt bracket of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model;
FIG. 4 is a schematic view of the structure of the air chamber box of the present utility model;
FIG. 5 is a schematic view of the static pressure ring structure of the present utility model;
FIG. 6 is a schematic view of a flow nozzle according to the present utility model;
FIG. 7 is a schematic diagram of the instrument of the present utility model;
FIG. 8 is a partial schematic view of a rectifying perforated plate of the present utility model.
In the figure: an air chamber box body 1; a baffle 11; a differential pressure sensor 111; a first chamber 12; a rectifying porous plate 121; a second chamber 13; a temperature and humidity sensor 131; a vent 14; a connection cylinder 141; a pressure taking port 15; a static ring 151; a static pressure pipe 152; a static pressure sensor 153; a mounting hole 16; a flow nozzle 161; a viewing window 17; a data acquisition instrument 18; a controller 19; an auxiliary bellows 2; a first fan 21; a second fan 22; an auxiliary valve 23; a filter screen 24; an industrial control computer 3; the fan 4 to be tested.
Detailed Description
Examples:
referring to fig. 1, in the embodiment of the utility model, a fan performance testing device comprises an air chamber box 1, an observation window 17 is formed in one side of the box, an instrument support is arranged on the lower side of the air chamber box 1, a tested fan 4 is placed beside a connecting cylinder 141 in flange connection with a vent 14 at one end of the air chamber box 1, a lifting support is arranged on the lower side of the tested fan 4, wheels are mounted at the bottom of the lifting support and are convenient to move, an auxiliary air box 2 is in flange connection with the vent 14 at the other end of the air chamber box 1, an auxiliary support is arranged on the lower side of the auxiliary air box 2, and wheels are arranged at the bottom of the auxiliary support and are convenient to move.
Referring to fig. 2-8, a fan performance testing device comprises an air chamber box body 1, ventilation openings 14 are formed in two ends of the air chamber box body 1, the inside of the air chamber box body 1 is divided into a first chamber 12 and a second chamber 13 through a baffle plate 11, a differential pressure sensor 111 is arranged on the baffle plate 11, a connecting cylinder 141 is arranged on the ventilation opening 14 on one side of the first chamber 12, the ventilation opening 14 on one side of the second chamber 13 is connected with an auxiliary air box 2, a plurality of rectification porous plates 121 are arranged in the first chamber 12 and the second chamber 13, static pressure rings 151 are arranged on one side, close to the ventilation opening 14, of the outer sides of the first chamber 12 and the second chamber 13, a plurality of mounting holes 16 are formed in the positions, close to the baffle plate 11, of the outer sides of the first chamber 12 and the second chamber 13, flow nozzles 161 are arranged on the mounting holes 16, an observation window 17 is formed in one side of the second chamber 13, a temperature and humidity sensor 131 is arranged on the rectification porous plates 121 in the second chamber 13, and a data acquisition instrument 18 and a controller 19 are arranged on the lower side of the air chamber box body 1.
Wherein, the holes on the rectifying porous plate 121 are regular hexagons, the area of the holes occupies not less than forty percent of the area of the rectifying porous plate 121, the hexagonal holes on the rectifying porous plate 121 can improve the uniformity of the air flow, the area of the holes occupies high ratio, and the loss of the air flow can be reduced.
The static pressure ring 151 is provided with a plurality of static pressure pipes 152 which are uniformly distributed, the static pressure pipes 152 are corresponding to pressure taking openings 15 which are arranged at the surface position of the air chamber box body 1, the pressure taking openings 15 are connected with the static pressure pipes 152, the output end of the static pressure ring 151 is connected with the static pressure sensor 153, the air chamber box body 1 is externally pressurized, the structure in the air chamber box body 1 can be reduced, the error of measured data is reduced, the static pressure pipes 152 are uniformly distributed in the air chamber box body 1 for a circle, and a plurality of pressure taking points can be used for more accurately measuring the pressure data in the air chamber box body 1.
The left and right ends of the differential pressure sensor 111 are respectively located in the first chamber 12 and the second chamber 13, and the differential pressure sensor 111 can simultaneously measure the air pressure at the left and right sides of the baffle 11 to obtain a real-time differential pressure.
The static pressure sensor 153, the differential pressure sensor 111 and the temperature and humidity sensor 131 are respectively connected with the data acquisition instrument 18 through wires, the data acquisition instrument 18 is connected with the industrial computer 3, and the industrial computer 3 can receive data of the static pressure sensor 153, the differential pressure sensor 111 and the temperature and humidity sensor 131 for analysis and drawing of performance curves according to program setting.
The flow nozzle 161 is connected with the controller 19 through a wire, the controller 19 is connected with the industrial computer 3, the flow nozzle 161 can ensure the lowest measurement pressure loss in the measurement range of the differential pressure sensor 111, and the industrial computer 3 can automatically control the flow nozzle 161 according to program setting.
The auxiliary bellows 2 is connected with the air chamber box body 1, the measuring side ventilation opening 14 is provided with a filter screen 24, a first fan 21 with an air suction function and a second fan 22 with an air blowing function are arranged in the auxiliary bellows 2, an auxiliary valve 23 for controlling airflow flow is arranged between the first fan 21 and the second fan 22, the first fan 21, the second fan 22 and the auxiliary valve 23 are all connected with the controller 19 through wires, and the first fan 21 with the air suction function and the second fan 22 with the air blowing function can directly test the performance test of air suction and air blowing of the fans without changing equipment.
When in use, the tested fan 4 is placed on the lifting bracket, the lifting bracket is adjusted, the blowing end of the tested fan 4 is connected with the connecting cylinder 141, the running program of the industrial computer 3 is opened, commands are automatically issued to the controller 19 and the data acquisition instrument 18 to perform fan blowing test, the first fan 21, the flow nozzle 161 and the regulating auxiliary valve 23 are started manually or through the controller 19, then the tested fan 4 is started, the blowing of the tested fan 4 enters the air chamber box 1, the static pressure sensor 153 in the first chamber 12 detects the static pressure of air flow to obtain data, after the air flow is rectified by the rectifying porous plate 121 in the first chamber 12, the air pressure is changed after the air flow passes through the baffle 11, the pressure difference sensor 111 respectively detects the air pressure at the left side and the right side of the baffle 11 to obtain pressure difference, the flow nozzle 161 can ensure the lowest measurement pressure loss in the measuring range of the pressure difference sensor 111, when the air flow passes through the rectifying porous plate 121 in the second chamber 13, the temperature and humidity sensor 131 detects the temperature of the air flow to obtain data, the air flow is discharged through the first fan 21, the static pressure sensor 153, the temperature and humidity sensor 131 and the differential pressure sensor 111 respectively transmit the detected data to the data acquisition instrument 18, the industrial computer 3 records and analyzes the detected data, draws the blowing performance curve of the tested fan 4, after the blowing test of the fan is completed, the auxiliary fan and the mounting cylinder are disassembled, the auxiliary fan is connected with the ventilation opening 14 flange of the first chamber 12, the mounting cylinder is connected with the ventilation opening 14 flange of the second chamber 13, the tested fan 4 is moved, the air suction end of the tested fan 4 is connected with the mounting cylinder, the first fan 21 is closed, the second fan 22 is started, the air inlet test of the fan is performed to obtain data, the computer receives the data for analysis, drawing the air suction performance curve of the tested fan 4.
Claims (7)
1. The utility model provides a fan performance test device, includes plenum box (1), its characterized in that: the utility model discloses a temperature and humidity control device for the air chamber, including air chamber box (1), baffle (11), first cavity (12) and second cavity (13) are cut apart into to air chamber box (1) both ends, be equipped with differential pressure sensor (111) on baffle (11), be equipped with on first cavity (12) one side vent (14) be used for with being connected by survey fan (4) connecting cylinder (141), second cavity (13) one side vent (14) are connected with supplementary bellows (2), all be equipped with a plurality of rectification perforated plates (121) in first cavity (12) and in second cavity (13), first cavity (12) and second cavity (13) outside a week are close to vent (14) one side department and all are equipped with static ring (151), first cavity (12) and second cavity (13) outside are close to baffle (11) department and are equipped with a plurality of mounting holes (16), be equipped with flow nozzle (161) on mounting hole (16), observation window (17) are seted up on second cavity (13) one side, be equipped with perforated plate (121) in second cavity (13) and be equipped with temperature and humidity control device (19) under temperature and humidity control device (1).
2. The fan performance testing apparatus of claim 1, wherein: the two rectifying porous plates (121) are arranged, holes in the rectifying porous plates (121) are regular hexagons, and the area of each hole occupies not less than forty percent of the area of the corresponding rectifying porous plate (121).
3. The fan performance testing apparatus of claim 1, wherein: the static pressure ring (151) is provided with a plurality of static pressure pipes (152) which are uniformly distributed, the static pressure pipes (152) correspond to pressure taking openings (15) arranged at the surface positions of the air chamber box body (1), the pressure taking openings (15) are connected with the static pressure pipes (152), and the output end of the static pressure ring (151) is connected with a static pressure sensor (153).
4. The fan performance testing apparatus of claim 1, wherein: the left end and the right end of the differential pressure sensor (111) are respectively positioned in the first chamber (12) and the second chamber (13).
5. A fan performance testing apparatus according to claim 3, wherein: the static pressure sensor (153), the differential pressure sensor (111) and the temperature and humidity sensor (131) are respectively connected with the data acquisition instrument (18) through wires, and the data acquisition instrument (18) is connected with the industrial computer (3).
6. The fan performance testing apparatus of claim 5, wherein: the flow nozzle (161) is connected with the controller (19) through a wire, and the controller (19) is connected with the industrial control computer (3).
7. The fan performance testing apparatus of claim 6, wherein: the auxiliary air box (2) is connected with the air chamber box body (1) and is provided with a filter screen (24) on the side vent (14), a first fan (21) with an air suction function and a second fan (22) with an air blowing function are arranged in the auxiliary air box (2), an auxiliary valve (23) is arranged between the first fan (21) and the second fan (22), and the first fan (21), the second fan (22) and the auxiliary valve (23) are all connected with the controller (19) through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321296575.3U CN219932494U (en) | 2023-05-26 | 2023-05-26 | Fan performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321296575.3U CN219932494U (en) | 2023-05-26 | 2023-05-26 | Fan performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219932494U true CN219932494U (en) | 2023-10-31 |
Family
ID=88488363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321296575.3U Active CN219932494U (en) | 2023-05-26 | 2023-05-26 | Fan performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219932494U (en) |
-
2023
- 2023-05-26 CN CN202321296575.3U patent/CN219932494U/en active Active
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