Airflow tests for table fans, wall fans, platform fans, floor fans, ceiling fans, and rotary fans

Purpose:according toBS EN IEC 60879:2019TheGB/T13380-2018TheGB 12021.9-2021Technical Specification Requirements for Energy Efficiency Limits and Grades of Electric Fans：

1 Scope of application (applicable standards)

The requirements for this air volume testing device are based on, for the convenience of walking, and because the testing methods are basically the same,Can meet the air volume testing requirements for table fans, wall fans, floor fans, and column fans.Four anemometers are used to collect wind speed (the test plane has existing ones)2On the basis of a horizontal anemometer, an increase is made in the vertical direction2An anemometer is used to represent the average wind speed on the same ring.

2 Main technical parameters and functions

2.1 Main technical parameters

Can meetTable fan, Bi fan, floor fan, and column fan tower fanRequirements for air volume testing

Laboratory size:(Small fan)4500*4500*3000）(Large fan)6000*4500*3000）Unit: mm

2.2 Main functions

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

3Technical Requirements

3.1 Scope of Application(Unit: mm)

Table fan blade diameter200,230,250,300,350,400,450 500

Bi fan blade diameter250,300,350,400,450 500

Diameter of terrace fan blades300,350,400,450 500

Diameter of floor fan blades300,350,400,450,500,600

Rotating blade fan blade diameter200,230,250,300,350,400，450，500

The specifications of column fans are divided according to the diameter and length of the impeller.as:The diameter of the impeller is100mm.length400mm.Then its specification is φ100 mmX400 mm

The experiment was conducted in the air flow test chamber shown in Figure 4, with the following dimensions:

Length: 4500mm for fans less than or equal to 400mm, 6000mm for fans greater than 400mm.

Width: 4500 mm.

Height: 3000 mm.

The allowable error for the size of the test screen listed above is within 15mm.