CN208534819U - Device for the test of fan aeroperformance - Google Patents
Device for the test of fan aeroperformance Download PDFInfo
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- CN208534819U CN208534819U CN201821043416.1U CN201821043416U CN208534819U CN 208534819 U CN208534819 U CN 208534819U CN 201821043416 U CN201821043416 U CN 201821043416U CN 208534819 U CN208534819 U CN 208534819U
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Abstract
The utility model relates to a kind of fan aeroperformance test devices, it include: test pipeline, the test pipeline is in long tube structure, connector including being arranged at one end and being suitable for fan to be measured, it is positioned close to the stable cavity at the connector end, contraction chamber in the middle part of the test pipeline is set, is arranged far from the diffusion chamber at the connector end, and the measurement chamber being arranged between the contraction chamber and the diffusion chamber；And acquisition component, the acquisition component include the differential pressure gauge connecting with the stable cavity, and the flowmeter connecting with the measurement chamber.
Description
Technical field
The utility model relates to fan performance test technical fields, and in particular to it is a kind of for fan aeroperformance test
Device.
Background technique
Fan is a kind of device that air-flow is generated using electrical energy drive, in industry, civil buildings ventilation field and power
It is widely used in mechanical, electronic device cooling system.In general, the aeroperformance curve of fan is user in selection fan type
Number when Primary Reference data and fan manufacturer must provide.
In the prior art, the experimental provision with flow measurement device is mostly used to survey the aeroperformance of fan greatly
Examination, for example, large and medium-sized fan assembly can generally be used and be flowed by the flow measurement device that multiple flow nozzles form
Examination is measured, to obtain wider range of flow；But the control system of this multi-nozzle device is relative complex, is unable to satisfy small
Type/mini-fan demand practical to pneumatic convenient test, at low cost.
Therefore, the pneumatic property that a kind of structure especially suitable for small/micro fan is simple and convenient and practical is needed at present
It can test device.
Summary of the invention
The purpose of the utility model is to provide a kind of devices for the test of fan aeroperformance, can overcome above-mentioned existing
The defect of technology, the test device include:
Pipeline is tested, the test pipeline is in long tube structure, the connection including being arranged at one end and being suitable for fan to be measured
Part is positioned close to the stable cavity at the connector end, and the contraction chamber in the middle part of the test pipeline is arranged in, is arranged far from institute
The diffusion chamber at connector end is stated, and the measurement chamber being arranged between the contraction chamber and the diffusion chamber, and
Acquisition component, the acquisition component include the differential pressure gauge connecting with the stable cavity, and with the measurement chamber
The flowmeter of connection.
Preferably, the stable cavity is equal diameter long tube structure, and the diameter of section of the stable cavity is first diameter；
The measurement chamber is equal diameter long tube structure, and the diameter of section of the measurement chamber is second diameter；
The contraction chamber is variable cross-section pyramidal structure, the diameter of section of one end that the contraction chamber is connect with the stable cavity
For the first diameter, the contraction chamber is second diameter with the diameter of section for measuring one end that chamber is connect.
Preferably, the first diameter is greater than the second diameter.
Preferably, honeycomb rectifier is provided in the stable cavity.
Preferably, the stable cavity is provided with pressure port close to one end of the contraction chamber, is equipped on the pressure port
Pressure tube socket is connected with static pressure pressure sebific duct on the pressure tube socket, and the differential pressure gauge is through the static pressure pressure sebific duct and institute
Stable cavity is stated to be connected.
Preferably, flow probe tube socket is provided on the measurement chamber, the measuring probe of the flowmeter is connected to described
On flow probe tube socket.
Preferably, further include the calibration assemblies for being suitable for the flowmeter, calibration probe peace is provided on the measurement chamber
Seat is filled, the calibration assemblies are mounted in the calibration probe mounting base of the measurement chamber.
Preferably, the diffusion chamber is variable section structure, and one end of the diffusion chamber is through flow regulating part and the measurement
Chamber connection, the other end of the diffusion chamber are connected with auxiliary power fan.
Preferably, the acquisition component further includes the tachometer and Hygrothermograph, atmospheric pressure suitable for fan to be measured
Meter.
Preferably, the test device further include:
Transmission assembly, the transmission assembly are connected to the acquisition component, and be suitable for acquiring the acquisition component
Data are transmitted to computer；
Computer is connected to the transmission assembly, and is suitable for according to the data analysis that the acquisition component acquires
The aeroperformance of fan to be measured.
Compared with the existing technology, the utility model achieves following advantageous effects: fan provided by the utility model
Aeroperformance test device, using the measurement pipeline of independent equipped flowmeter, control mode is simple, avoids the prior art
In complicated switching between multiinjector, improve the operational reliability of device；Calibration is increased on measurement pipe road simultaneously to connect
Mouthful, it may be implemented to improve measurement accuracy to the real time calibration of flowmeter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the fan aeroperformance test device of the utility model preferred embodiment.
Fig. 2 is the structural schematic diagram according to the measurement chamber of the utility model preferred embodiment.
Fig. 3 is the measuring principle schematic diagram according to the utility model preferred embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, pass through tool below in conjunction with attached drawing
The utility model is further described in body embodiment.
Fig. 1 is the structural schematic diagram of the fan aeroperformance test device of the utility model preferred embodiment, such as Fig. 1 institute
Show, which includes for constituting the test pipeline 100 of gas flow channel, for acquiring each Aerodynamic of fan
Acquisition component 200, be used for transmission the data collecting card 14 of the data collected of acquisition component 200 and for from data collecting card
14 receive acquisition data and execute the computer 15 of processing analysis.
The design of above-mentioned test pipeline 100 is based on wind-tunnel design principle.As shown in Figure 1, it is in long tube that test pipeline 100 is whole
Shape, one end are provided with the interface flange 1 for connecting fan to be measured.For purposes of illustration only, will test inside pipeline 100 along to be tested
The airflow direction of fan is successively divided into stable cavity 3, contraction chamber 4, measurement chamber 5 and diffusion chamber 6, wherein stable cavity 3, contraction chamber 4
The adjustment channel of air flow is collectively constituted with measurement chamber 5, diffusion chamber 6 is used for auxiliary adjustment flow.
Stable cavity 3 is that test pipeline 100 is arranged in close to the equal diameter long tube structure part of fan end to be measured, and section is straight
Diameter is first diameter, and the honeycomb rectifier 2 for uniform air flow is additionally provided with inside it.Contraction chamber 4 is that setting is being tested
The variable cross-section pyramidal structure part at the middle part of pipeline 100, wherein the diameter for the end section that contraction chamber 4 is connect with stable cavity 3 is the
One diameter, the diameter for the end section connecting with measurement chamber 5 is second diameter, also, above-mentioned first diameter is greater than second diameter.
Measurement chamber 5 is the equal diameter proboscis portion that test 100 mid portion of pipeline is arranged in, and diameter of section is second diameter, the survey
Flow probe tube socket 16 and calibration probe mounting base 17 (as shown in Figure 2) are additionally provided on amount chamber 5.Diffusion cabin 6 is that setting is being surveyed
One end of variable section structure part of the test tube road 100 far from fan end to be measured, diffusion cabin 6 connects through flow control valve 7 and measurement chamber 5
It connects, the other end is connected to the auxiliary power fan 8 adjusted for auxiliary flow, which can be used for executing survey
Tune borrows the air flow rate in measurement pipeline 100 when examination.
Above-mentioned acquisition component 200 includes the differential pressure gauge 9 and thermal flowmeter 10 connecting with test pipeline 100.Differential pressure
Meter 9 is connected to the steady of test pipeline 100 through static pressure pressure sebific duct for measuring the air-flow static pressure in stable cavity 3, positive port
Chamber 3 is determined close to one end of contraction chamber 4, and stable cavity 3 is equipped with the pressure port for installing pressure tube socket close to one end of contraction chamber 4
(not shown in figure 1), pressure tube socket can be used for connecting above-mentioned static pressure pressure sebific duct.Thermal flowmeter 10 is for measuring measurement chamber 5
In air flow rate, thermal flowmeter probe 10 be mounted on measurement chamber 5 flow probe tube socket 16 on.
In one embodiment of the utility model, Fig. 2 is the knot according to the measurement chamber of the utility model preferred embodiment
Structure schematic diagram, as shown in Fig. 2, the calibration probe mounting base 17 on test chamber 5 shows heat type flow quantity probe 10 for installing
The standard wind speed of field calibration is popped one's head in.
Above-mentioned acquisition component 200 further includes being arranged at test 100 stable cavity 3 of pipeline for measuring the temperature and humidity of temperature and humidity
The tachometer for being used to measure rotation speed of the fan at fan (not shown in figure 1) to be measured is arranged in meter, and for measuring environment gas
The large barometer of pressure.
In one embodiment of the utility model, above-mentioned tachometer can be photoelectric tachometer, measure fan to be measured
When revolving speed, the reflective scraps of paper are pasted onto the rotating wheel hub of fan to be measured, and photoelectric tachometer is directed at the reflective scraps of paper and is turned
Speed measurement.
In order to evaluate the aeroperformance of fan, need to test fan using above-mentioned test device, thus according to survey
The parameter value calculation analysis measured obtains Pressure-flow curves relevant to fan fan aeroperformance to be measured.Fig. 3 is according to this
The measuring principle schematic diagram of utility model preferred embodiment, as shown in figure 3, the pressure P at the PL.2 of section can be used2And volume
Flow Q2To draw the Pressure-flow curves of fan to be measured.
About the flow Q at the PL.2 of section2, since fan to be measured is mini-fan, the air velocity of outlet compares sound
Speed is lower, meanwhile, distance is shorter between the section PL.2 to section PL.6 of test device provided by the utility model, in practical survey
When amount, the variation of temperature and pressure of the air-flow in test pipeline 100 is smaller, thus it can be assumed that air-flow is in test device
In be potential flows, section PL.2 is identical as the volumetric flow of gas at the PL.6 of section, i.e.,
Q2=Q6=Q
Wherein, Q2And Q6Respectively indicate the volumetric flow of gas at section PL.2 and section PL.6.If the outlet of fan to be measured
Air-flow is the test device entered with jet stream state, flow (the i.e. section PL.2 according to velocity-area method, at above-mentioned section PL.6
The flow at place) it can be with are as follows:
Q6=Q=A6v6
Wherein, v6For the air velocity that thermal flowmeter probe 10 measures, A6It is available to cut for the logical sectional area for measuring chamber 5
The diameter d of face PL.66It calculates and obtains:
Therefore, the flow at the PL.2 of section can use the air velocity v that 10 measurement of thermal flowmeter probe obtains6And
Measure the diameter d of the section PL.6 at chamber 56It indicates are as follows:
About the pressure P at the PL.2 of section2, static pressure can be divided intoAnd stagnation pressure, and can be according to the survey at the PL.4 of section
The static pressure and dynamic pressure data and air-flow obtained obtains above-mentioned static pressure from flow losses calculating section PL.2 to section PL.4With
Stagnation pressure, it is specific as follows:
Firstly, being calculated and being obtained at the PL.4 of section according to following formula using the diameter and above-mentioned flow Q of section PL.4
Mean flow rate v4, i.e.,
Secondly, according to the mean flow rate v at above-mentioned section PL.44Obtain the flowing pressure of section PL.4 are as follows:
Since the stagnation pressure at the PL.2 of section can indicate are as follows:
Then the static pressure at the PL.2 of section can indicate are as follows:
Wherein, v2For the mean flow rate at the PL.2 of section, and, i.e. v identical as the mean flow rate at the PL.4 of section2=v4,
L2,4Indicate that the distance between section PL.2 and section PL.4, Le indicate the equivalent length of above-mentioned honeycomb rectifier 2,Expression is the fricting resistance loss for testing pipeline 100 and honeycomb rectifier 2, and numerical value is smaller, generally may be used
It ignores；PjThe local crushing for indicating fan outlet to be measured, may be expressed as:
Wherein, ζjFor coefficient of partial resistance.
In one embodiment of the utility model, if the outlet of fan to be measured is that pipeline connects, i.e., air-flow is smooth
Into stable cavity 3, then the local crushing P in above-mentioned formulajIt is negligible；If the outlet of fan to be measured is not pipeline connection,
I.e. air-flow enters stable section chamber 3 with pattern, then local crushing P need to be calculated in above-mentioned formulaj。
Based on the above principles, can according to rotation speed of the fan to be measured that test device measurement provided by the utility model obtains and
The air velocity in test chamber 5 that thermal flowmeter measurement obtains calculate obtain pressure at each flow condition lower section PL.2 and
Flow simultaneously is depicted as can be used for evaluating the Pressure-flow curves of fan aeroperformance.
In actual measurement, can be treated according to following operating process using test device provided by the utility model execution
Survey the test of fan.
1) fan to be measured is docked by interface flange 1 with above-mentioned test pipeline 100 (in an implementation of the utility model
In example, airflow leaks can be prevented using appropriate seal approach)；
2) acquisition component 200 is connected respectively to designated position, for example, being arranged photoelectric tachometer 12 in fan to be measured
Place, is connected to stable cavity 3 etc. for differential pressure gauge 9；
3) flow control valve 7 is opened to the maximum into position, starts auxiliary power fan 8；
4) start fan to be measured, the stable cavity 3 in pipeline 100, contraction chamber 4 arrive the air-flow for generating fan to be measured after tested
Uniform flow field is formed up to measurement chamber 5, and in measurement chamber 5；
5) static pressure in stable cavity 3 measured according to differential pressure gauge 9 utilizes flow control valve 7 to change test pipeline
The flow regime of air-flow in 100, the static pressure at the PL.4 of sectionSlightly larger than zero；
6) according to preset flow rate test point, start to execute measurement, successively adjust flow using flow control valve 7, utilize
Data Acquisition Card 14 is by the collected static pressure of acquisition component 200, flow value, temperature and humidity value, atmospheric value and rotation speed of the fan value
Etc. data be uploaded to computer 15 respectively；
7) the received Aerodynamic for acquiring data and obtaining fan to be measured of the analysis processing of computer 15, example are utilized
Such as, the Pressure-flow curves etc. of fan to be measured are drawn out.
Although in the above-described embodiments, test device provided by the utility model is illustrated by taking fan as an example,
It is it should be understood by one skilled in the art that in other embodiments, test device provided by the utility model can also fit
For the various radiators based on said fans principle such as ventilation blower.
Although the utility model has been described by means of preferred embodiments, the utility model is not limited to this
In described embodiment, further include made various changes and change in the case where not departing from the scope of the utility model
Change.
Claims (10)
1. a kind of fan aeroperformance test device characterized by comprising
Pipeline is tested, the test pipeline is in long tube structure, the connector including being arranged at one end and being suitable for fan to be measured, if
The contraction chamber being arranged in the middle part of the test pipeline in the stable cavity close to the connector end is set, the company is arranged far from
The diffusion chamber at fitting end, and the measurement chamber being arranged between the contraction chamber and the diffusion chamber；With
Acquisition component, the acquisition component include the differential pressure gauge connecting with the stable cavity, and are connect with the measurement chamber
Flowmeter.
2. test device according to claim 1, which is characterized in that
The stable cavity is equal diameter long tube structure, and the diameter of section of the stable cavity is first diameter；
The measurement chamber is equal diameter long tube structure, and the diameter of section of the measurement chamber is second diameter；
The contraction chamber is variable cross-section pyramidal structure, and the diameter of section of one end that the contraction chamber is connect with the stable cavity is institute
First diameter is stated, the diameter of section of one end that the contraction chamber is connect with the measurement chamber is second diameter.
3. test device according to claim 2, which is characterized in that the first diameter is greater than the second diameter.
4. test device according to claim 1, which is characterized in that be provided with honeycomb rectifier in the stable cavity.
5. test device according to claim 1, which is characterized in that the stable cavity is set close to one end of the contraction chamber
It is equipped with pressure port, pressure tube socket is installed on the pressure port, static pressure pressure sebific duct is connected on the pressure tube socket, it is described micro-
Difference gauge is connected through the static pressure pressure sebific duct with the stable cavity.
6. test device according to claim 1, which is characterized in that it is provided with flow probe tube socket on the measurement chamber,
The measuring probe of the flowmeter is connected on the flow probe tube socket.
7. test device according to claim 6, which is characterized in that further include the calibration group suitable for the flowmeter
Part, calibration probe mounting base is provided on the measurement chamber, and the calibration assemblies are mounted on the calibration probe peace of the measurement chamber
It fills on seat.
8. test device according to claim 1, which is characterized in that the diffusion chamber is variable section structure, the diffusion
One end of chamber is connect through flow regulating part with the measurement chamber, and the other end of the diffusion chamber is connected with auxiliary power fan.
9. test device according to claim 1, which is characterized in that the acquisition component further includes being suitable for fan to be measured
Tachometer and Hygrothermograph, large barometer.
10. test device according to any one of claims 1 to 9, which is characterized in that further include:
Transmission assembly, the transmission assembly are connected to the acquisition component, and the data for being suitable for acquiring the acquisition component
It is transmitted to computer；
Computer is connected to the transmission assembly, and the data analysis for being suitable for being acquired according to the acquisition component is described to be measured
The aeroperformance of fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821043416.1U CN208534819U (en) | 2018-07-03 | 2018-07-03 | Device for the test of fan aeroperformance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821043416.1U CN208534819U (en) | 2018-07-03 | 2018-07-03 | Device for the test of fan aeroperformance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208534819U true CN208534819U (en) | 2019-02-22 |
Family
ID=65380368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821043416.1U Expired - Fee Related CN208534819U (en) | 2018-07-03 | 2018-07-03 | Device for the test of fan aeroperformance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208534819U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677683A (en) * | 2020-06-03 | 2020-09-18 | 中国计量大学 | Method and device for testing pneumatic performance of micro fan based on flow compensation method |
| CN111692120A (en) * | 2020-06-09 | 2020-09-22 | 杭州微光电子股份有限公司 | Fan performance test equipment |
| CN113565784A (en) * | 2021-07-22 | 2021-10-29 | 中国北方车辆研究所 | Flow regulating device for testing pneumatic performance of fan |
-
2018
- 2018-07-03 CN CN201821043416.1U patent/CN208534819U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677683A (en) * | 2020-06-03 | 2020-09-18 | 中国计量大学 | Method and device for testing pneumatic performance of micro fan based on flow compensation method |
| CN111692120A (en) * | 2020-06-09 | 2020-09-22 | 杭州微光电子股份有限公司 | Fan performance test equipment |
| CN111692120B (en) * | 2020-06-09 | 2021-10-29 | 杭州微光电子股份有限公司 | Fan performance test equipment |
| CN113565784A (en) * | 2021-07-22 | 2021-10-29 | 中国北方车辆研究所 | Flow regulating device for testing pneumatic performance of fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 Termination date: 20210703 |