Ceiling fan airflow measurement device

1 Introduction to Testing Equipment

The ceiling fan air volume test device provides stable and reliable environmental conditions, and calculates the air volume, supply cone angle, and energy efficiency value based on this. Use the anemometer method to complete the test of the nominal air volume of the electric fan. During the experiment, the anemometer has an automatic walking mechanism that can automatically operate at the specified point according to national standards. The operator is outside the testing room and will not affect the wind field. The computer automatically collects power, current, and wind speed, calculates average wind speed and air volume, completes data processing, records and saves experimental data, and can automatically generate air volume reports and energy efficiency data and print experimental reports. This air volume testing device is based onGB12021.9-2008Energy Efficiency Limits and Grades for AC FansGB/T 13380-2018第6.7.2Standard terms requirements and laboratory requirements specified therein for constructionSimultaneously meet the requirements of both the current version of the above standards and the new version of the standards in the revision stage.

II technical specifications

1Equipped with environmental temperature and humidity control device, temperature:20℃±5℃, humidity:40%～80%Therefore, it is recommended to install the test shielding room in a room with medium air conditioning or install independent air conditioning, and control the outdoor temperature of the shielding room to be lower than20℃ can ensure that the testing requirements are met. This plan does not include the temperature control part of the experimental environment.

2The system is equipped with a laser beam for direct positioning of the anemometer, ensuring that the axis of the anemometer blades is always parallel to the axis of the electric fan blades. The mounting mechanism of the anemometer should minimize obstruction to the airflow;

5The220V/50Hz/about3kVA.

6Load bearing standard: not exceeding3.5kN/㎡ (already committed)

III Device requirements

1The device complies withIEC60879The standard requirements for air volume testing include reasonable design, high degree of automation, convenient use, durability, load-bearing and anti vibration capabilities;

2Test scope: ceiling fan;

3Test parameters and items: temperature, humidity, atmospheric pressure, wind speed, air volume, input power, energy efficiency value.

4The system adopts computer control and can display the wind speed value of each test point. Generally 3 One measurement point per minute (including positioning and delay) 1 About minutes and testing time 2About minutes), the average wind speed and point air volume of each circle,

It can automatically generate detection results and process curves, and print them out.

5During the experiment, the distance from the fan blade axis should be taken into account40mmMeasure from two points on the left and right, starting at each point80mmThe increment moves along the horizontal line point by point towards both sides until the measured average wind speed drops below9m/minUntil then;

6The 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;

7German Detu435-2Type impeller anemometer, impeller diameter100mm; jointly4One;

8The system should be equipped with a multifunctional electricity meter that can measure voltage, current (true RMS), and power500VAVariable frequency (±)1%）Voltage regulating power supply, please refer to the configuration table for specific configuration;