Electric Fan Energy Efficiency Test Room Floor Fan Airflow Measurement Test Room IEC60879 GB/T13380

1Electric Fan Energy Efficiency Test Room Floor Fan Airflow Measurement Test RoomScope of application:

1The system adopts computer control and can display the wind speed value of each testing point. Generally, one testing point is set every 3 minutes (including positioning, delay of about 1 minute, and testing time of about 2 minutes). The average wind speed and point air volume of each circle can be automatically generated, and the detection results and process curves can be printed out. The computer configuration shall not be less than 250GB hard disk, 17 inch LCD display, and 2G memory;

2. Test scope: table fan, wall fan, platform fan, ceiling fan and rotary fan, floor fan, ceiling fan;

3The device should comply with the requirements of IEC60879 standard for air volume testing, with a reasonable design, high degree of automation, convenient use, durability, and load-bearing and anti vibration capabilities;

4. During the experiment, measurements should be taken from two points about 20mm away from the axis of the fan blade, and moved in increments of 40mm along a horizontal straight line towards both sides until the measured average wind speed drops below 24m/min;

5The system should be equipped with a multifunctional electricity meter that can measure voltage, current (true effective value), and power, as well as a 500VA variable frequency (± 1%) voltage regulating power supply. Please refer to the configuration table for specific configurations;

6. German Detu 435-2 type impeller anemometer, impeller diameter 100mm; 4 in total;

7The fan mounting bracket and anemometer base are equipped with a universal adjustable pan tilt, and the installation height can be easily adjusted within the required range;

2、 Test screen size and construction (laboratory exterior and interior screen size)

The floor needs to indicate how to construct it (see attached drawings in the contract). The test screen is built with 50mm thick polystyrene lightweight insulation board, and the floor must be kept level. The sensor positioning mechanism is directly built on the floor, and the testing mechanism should be as small as possible to minimize the impact on the wind field. The testing device itself is a separate structure, so the unstable vibration of the tested fan during operation will not affect the wind speed sensor.

3、 Installation of laboratory exterior walls and interior screens:

1. There are three sizes of laboratory exterior walls:

They are ceiling fans measuring 6.5 meters by 6.5 meters by 3 meters, floor fans measuring 6 meters by 4.5 meters by 3 meters, and wall fans measuring 4.5 meters by 4.5 meters by 3 meters;

External wall installation method: Fixed type such as 6.5 meters * 6.5 meters * 3 meters external wall and assembled type such as 6 meters * 4.5 meters * 3 meters and top plate are used, with access doors.

Specific regulations need to be made for the size of the entrance and exit doors, as well as the addition of observation windows. The size of the observation windows also needs to be specified, and the strength of the materials used for the exterior walls needs to be specified: using high fire rated fireproof boards and surface electrostatic spraying;

The thickness and fire rating of the exterior wall; Approximately 20mm;

2. The size of the laboratory screen is 4.5 meters * 4.5 meters * 3 meters.

Installation method of the internal screen: assembled (connected by multiple main boards and auxiliary boards with fasteners). How to assemble (see contract attachment), drawings are required. Additionally, the original design was sliding.

In addition, it is necessary to specify the material used for the strength inner screen: 50mm thick polystyrene lightweight insulation board is used for construction, high fire rating fireproof board is used, and the surface is electrostatically sprayed;

A door needs to be installed on one wall of the laboratory screen for laboratory personnel to store and collect samples, view the testing environment, etc;

4、 The size of the door needs to be specified

The inner screen wall base needs to have a wall height of 0.45m that can be flipped over to serve as a ceiling fan for the experimental inner screen.

How to fix and lift a ceiling fan: There is a 2500mm simple lifting frame with a motor and guide on the top plate. The motor drives the fixed plate installed with the test ceiling fan to adjust the upper and lower height positions. The fixed plate can reach 1.5 meters above the ground, making it convenient to replace the ceiling and install samples.

Sealing: When testing different fans, the corresponding testing room is well sealed and does not affect the quality of the test.

5、 Main technical parameters and functions

1. Main technical parameters

Can meet the air volume testing requirements for table fans, wall fans, floor fans, and column fans

Laboratory size: (small fan 4500 * 4500 * 3000) Unit: millimeters

2. Main functions

Used for testing wind speed, temperature, humidity, electrical parameters (voltage/current/power/power factor), speed, and time

3. Technical requirements

3.1 Scope of Application (Unit: Millimeters)

Table fan blade diameter 200230250300350400450500

Bi fan blade diameter 250300350400450500

Terrace fan blade diameter 300350400450500

Floor fan blade diameter 300350400450600600

Rotating blade fan blade diameter 200230250300350400450500

3.2 Measurement accuracy

Temperature range: 0-50 ℃ Accuracy: Below ± 0.5 ℃

Wind speed range: 0-20m/s Accuracy: less than ± 0.01m/s+2% degree

Current range: 0-5A Accuracy: less than ± 0.5%

Voltage range: 0-300V Accuracy: less than ± 0.5%

Power range: 0-1000W Accuracy: less than ± 0.5