Fan PQ performance test for fans

Professional Wind Tunnel Provider

Performance & Functions By Beijing Shengda Junye Technology Co., Ltd

1、 Norms and theoretical basis

According to ANSI/AMCA 210-07 Standard；ANSI/ASHRAE 51-2007 ASHRAE STANDARD AMERICAN NATAIONAL STANDARD；LABORATORY METHOD OF TESTING FANS FOR RATING.

according toAMCAStandard,Fig.12The structure, including the front and back6Stainless steel rectifier device and5Aluminum alloy nozzle, used in combination with multiple nozzles;

IIFan PQ performance test for fansmeasurement range

(1)Measurement flow rate range:

(II)Measurement range of static pressure:

0~635 mmH2OIncluding positive pressure blocking valve group:PQThe curves can be measured at close intervals.

25.4 mmH2O~Large PS pressure sensor range: PQThe equidistant measurement of curves cannot be determined.(If there are larger Ps)Ps: The positive pressure choke valve group is a standard accessory.

3、 Test project:

（1） PQ of fanCurve measurement:

Multiple parameters of the fan can be measured, including corresponding air volume, air pressure, speed, voltage, and current.

1. Fan testing mode: DC voltage control; AC voltage control;

2. Automatically generate PQ curve table, ExcelFile, convenient for multi-purpose use.

3. Intelligent operation, choose nozzleClick to start with the number of points on the curve to avoid human errors or differences.

4. Optional multi fan group PQCurve measurement, simultaneously recording multiple sets of fan voltage, current, speed, and related physical parameters.

（2） Systematic RQCurve measurement:

1. By using standard flow devices to generate standard flow, automatic multi-stage flow setting control can be achieved,

2. Automatic control of testing status and automatic storage of testing data.

（3） SRC of system impedance or componentsCharacteristic curve measurement:

1. Support fully automatic flow and pressure measurement.

2. Automatically generate SRC curve table, ExcelFile, convenient for multi-purpose use.

PS: The above testing projects all use self-developed software that provides simple and fast intelligent operations. Test result data is automatically generated into corresponding Excel files for convenient multi-purpose use.

4、 Related specifications:

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(1)Measuring instruments:

1. Pressure measurement: 4 sets of pressure sensors and matching pressure displays. Accuracy is ± 0.25%FS， Setra imported from the United States brand.

（1） Ps1Fan static pressure measurement range:0 ~635 mmH2O

（2） Ps2Fan static pressure measurement range:0 ~ 254 mmH2O

（3） Ps3Fan static pressure measurement range:0 ~ 127 mmH2O

（4） dPMeasurement range of differential pressure before and after nozzle:0 ~ 127 mmH2O

2. Temperature measurement: 4group3Wire type thermistor temperature sensor and matching temperature display. scope0°C ~ 100 ° C, with an accuracy of ± 1 ° C (Optional)

（1） Environmental temperature: dry bulb thermometer Td, wet bulb thermometerTw

（2） Front of nozzle: dry bulb thermometerTd5

（3） Behind the nozzle: dry bulb thermometerTd8

3. Atmospheric pressure measurement: 1Group pressure sensor and pressure display, accuracy ±1% FS (Optional)

（1） Atmospheric pressure measurement range: 450-825 MmHg.

4. Voltage and current measurement: 1DC programmable power supply

(1) Voltage accuracy: ± 0.5%Scope:0 ~ 30/60V.

(2) Current accuracy: ± 0.5%Scope:0 ~ 3/5A

5. Speed measurement: 1A set of speed detection system, including fiber optic sensors, tachometers, and related components.

(1) Speed accuracy: ± 1.0%Scope:100 ~ 90000 rpm，

PS: Optional or self equipped frequency generator (FG signal)）Switch measurement.

(II)Computer control system:

1. Introduction to the Control System:

（1） Intelligent operation, using self-developed Flow Measurement software, simply select the nozzle and number of curve points, click to start samplingSet, automatically switched by the computer to select nozzle opening and closing, and automatically selected differential pressure converter. The measurement process does not require manual operation until the end.

（2） Automatically generate corresponding Excel documents for test data (supports Microsoft) Office Open Excel or WPS）, convenient for multi-purpose use,The content includes parameters such as environmental status, speed curve, PQ curve, etc.

2. Output data project:（Some parameters have been added with optional support）

3. Computer hardware:

（1） Host parameters: Intel Pentium CPU、4G RAM、120G SSD、WIFIWait, equipped with a host higher than or equal to the same level.

（2） Display parameters: 17 inch LCDLCD screen, equipped with displays of the same level or higher.

（3） OSAnd related software:Windows 7 operating system WPS or Microsoft Office ExcelNetwork remote control software, etc.

(3)Related accessories:

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1. Test fixture board: default standard provides fixture boards of 4, 6, 8, 12, 17 cm or other specifications, with a minimum of 2 pieces provided upon delivery based on factory inventory. If dimensions or other specifications are specified, the buyer shall provide design drawings or sample drawings or measured items. The specified size or other specifications need to be confirmed with our staff and completed within 30 working days after confirmation. 2-6 pieces can be produced.

2. Test fan samples: Sanyo, Nidec, NMBWait for at least two international brand fans and use them as standard components for flow inspection and calibration.

3. Fixing method: Acrylic fixing plate and quick clip or fixing screw are used to fix the test object at the entrance of the wind tunnel, supplemented with sealant to ensure complete fixation.

4. Lift platform: If equipped with SRCFor characteristic curve measurement, an adjustable height lifting platform is included.

(IV)Fan PQ performance test for fansOverall dimensions, environment, and external auxiliary requirements:

1. Reference specifications for the whole machine: 5m*1.8m*2.5m L (length) * W (width) * H (height)）

2. Environmental requirements:

（1） Avoid operating in harsh environments such as high temperature, high humidity, and strong magnetism. It is necessary to operate indoors and avoid direct sunlight.

（2） Range of environmental temperature for use: 3-40 ° C, relative humidity less than or equal to 65%following.

3. Power supply and air pressure requirements:

（1） Power supply: AC 380V & 220V， Three phase/single-phase, 5 A，50 Hz

（2） Pressure requirement: Input clean and dry air with a pressure of 0.5-0.8Mpa, air consumption:<1 Liter/min.