Airflow test benchHC--FL-2000
One functionThis test device is used for fansperformanceThe experiment meets the requirements of GB1236-2000 standard. (Equivalent to ISO5801), referring to the American AMAC210 standard.
－technologyindicator

1. Wind volume range of the tested fan:

1. Hair dryer: 3～2000m³/h，

2. Divided into two wind tunnels: 3～100m³/h， ninety～2000m³/h，

2. Measurement accuracy: repeatabilityprecision：2％

3. Environmental temperatureDegree:20±15℃； Humidity: 65±20%

4. Small wind tunnel size: approximatelyW350*H350*L1800mm(organic glass)

Wind tunnel size of the strong wind chamber: approximately:800*800*3000mm(Steel plate spray coating)
5. Speed: 0～6000RPM;

1. Fan interface size:100*100；500mm*500mm

2. Wind pressure:-100～1000pa,differential pressure-200～1000Pa;

8. Equipment control parameters: outlet pressure; Differential pressure on both sides of the nozzle; Auxiliary variable frequency fan;
9. Equipment measurement parameters: wind tunnel static pressure, pressure difference on both sides of the wind tunnel nozzle; Wind tunnel measurement of chamber temperature, humidity, and atmospheric pressure;
10. Software environment: Use a universal database environment to reduce costs
Database environment: MY SQL
Programming language: C #, operating system; Windows 10 or Windows 7
11. Motors: AC motors and DC motors;
Airflow test benchHC--FL-2000

II control schemeThis test bench adopts a blowing wind tunnel to test the performance of the fan. The specific plan is as follows:
1 Nozzle control: automatic adjustment control
2 Control mode of power supply voltage for the tested fan:
Automatic adjustment of DC motor0～30V,0～50A；
3 Control parameters:
Static pressure of the air duct, pressure difference between the two inner air plates, and voltage of the tested fan（DC）
4 Measurement parameters:
Wind tunnel static pressure, differential pressure on both sides of the nozzle, measured fan voltage, current, speed, wind tunnel temperature, wind tunnel humidity, atmospheric pressure.
3、 Control parameters (control parameters in fully automatic control schemes, measurement parameters in other schemes)

1. Static pressure of air duct (constant static pressure)

1. Differential pressure transmitter: Micro pressure transmitter, -500Pa~1000Pa/1~5V (accuracy 0.075%)

2. Control: PID

3. Data recording: collected to the computer through a data collector

1. Nozzle pressure difference (constant air volume)

1. Differential pressure transmitter: Micro pressure transmitter, with a range of -200 to 1000Pa /1-5V (accuracy 0.075%)

2. Control: PID: Output to control the opening degree of the electric air valve!

3. Data recording: collected through a data collector to a computer (domestically produced)

1. Tested fan voltage

4. Voltage range: 0-30VDC

4、 Measurement parameters
1.Current of the tested fan

1. Measurement range:0 ～ 50A(Measurement accuracy 0.01V)

2. Current converter: with shunt, 0-100A/ 1～5V DCAccuracy 0.1%

3. Data recording: collected to the computer through a data collector

2.Wind tunnel temperature

1. Measurement range: relative temperature -40～60℃

2. Measurement accuracy:±0.2℃

3. Signal converter: 0-100 ℃/4～20ma

4. Data recording: collected to the computer through a data collector

3.Wind tunnel humidity

1. Measurement range: relative humidity0～100％RH

2. Measurement accuracy: relative humidity±3％RH

3. Signal converter: 0-100%/4～20maDC

4. Data recording: collected to the computer through a data collector.

1. atmospheric pressure

5. Measurement range: 80kpa to 120kpa

6. Pressure transmitter: 0.25%, , 4～20maCoutput

7. Data recording: collected to the computer through a data collector

5. Tested fan speed

1. Speed range:0 ～ 6000 rpm

2. Speed sensor: 1 set, photoelectric type

3. Speed amplifier: 1 set

4. Speed converter: 1 set,0～5000 rpm/1～5VDC

5. Data recording: collected to the computer through a data collector

5、 Equipment
1.Wind tunnel with blowing effect

(1)Small Wind Chamber(organic glass)

1. External dimensions: diameter approximately 350mmLength approximately 1000L mm(Actual subject)

2. Rectification network 350 * 350mm

3. Installation test piece opening size: 200×200 mm(Confirmed by the user)

auxiliary fan

1. Fan: Multi blade centrifugal fan, with a total pressure of approximately 1500 Pa, Air volume 300m³/h,

(2)Strong wind chamberwind chamber(Steel plate spray coating)

1. External dimensions: diameter approximately 850mmLength 850L mm(Actual subject)

2. Rectification network 850 * 550mm

3. Installation test piece opening size: 400×400 mm(Confirmed by the user)

auxiliary fan

1. Fan: Multi blade centrifugal fan, with a total pressure of approximately 1500 Pa, Airflow of 4000m³/h,

2. Control cabinet

1. Switches, indicator lights, digital displays

2. Emergency stop switch and frequency converter fault alarm

3. Data processing system
3.1 Data Collector: 8-Channel Data Acquisition System
3.2 Computer System: computer: 4G Memory, 500GHard drive, RS232