IEC61855 Figure 9 Dryer Air Volume Test System For Household And Similar Purposes

IEC61855 Figure 9 Dryer Air Volume Test System For Household And Similar Purposes

Standards:

QB/T1876-20XX Hair Care Appliances for Household and Similar Purposes 5.7.1 and Figure 6 and IEC61855 Figure 9

System Overview:

The test system adopts PLC control and computer operation, the test work of the equipment is completed automatically, and the test data is recorded, saved and the airflow report is generated automatically, which is characterized by accurate data, good repeatability, high efficiency and convenient data storage. The action mechanism adopts servo motor drive + precision sliding table transmission, to ensure the smooth running of the test process and displacement accuracy: the use of imported high-precision precision anemometers to measure wind speed, accurate test data: the test system is placed in the test room, the operator can be controlled remotely, and will not have an impact on the wind field.

Equipment principle and structure:

Principle of the equipment:

PLC control is adopted to drive the moving arm of the anemometer through the Ho-serve motor to realize the testing of the wind speed of each point in the corresponding area of the hair dryer, and then calculate the wind volume of each point, and then sum up the wind volume of all the points with the wind speed value of not less than 24m/min, to arrive at the total wind volume of the hair dryer.

Q total =Σ_i=^N(0.00025 )

Q total = total air volume

N=Number of squares with wind speed measurement value not less than 24m/min, =Wind speed of each measurement point.

Equipment structure:

1. As Figure 1, the equipment is mainly composed of control system, specimen mounting bracket, automatic moving mechanism, wind speed collection unit and specimen power supply unit. 
Figure1

2. The specimen mounting bracket by the X-axis sliding table, specimen mounting fixture composed of X-axis can be infinitely adjustable to match the standard requirements of the specimen and the distance between the anemometer and the anemometer 200mmm.

3. According to the standard figure 2 along the y-axis "standard for the x-axis) arrangement of hot-wire anemometer, the arrangement of 1, automatic moving mechanism to drive the mobile spacing 5mm.

4. The use of Ho service motor-driven mobile arm, driven hot-wire anemometer along the Z-axis (standard figure for the Y-axis) automatically move up and down (each time the move 5mm to collect the wind speed value of each point).

Milli-flat light

Machine Bureau

5. The anemometer adopts imported German brand.

6. Equipment can supply power to the specimen.

7. The control system adopts PLC intelligent central control, touch one body type computer operation, with remote start function, to prevent the operator to the wind field.

8. The software is prepared according to the requirements of the standard test methods, can be run test and standby test. The report format can reflect all standard requirement parameters.

Test procedure:

1. Sample making: the heating function of the hair dryer is put into a non-working state.

2. Installation of the sample: Installation of the fixed sample, so that the hairpiece outlet and anemometer plane parallel, adjust the sample outlet end distance Dd anemometer 200m (axis), the sample is adjusted to the highest gear

3. To run the test, the automatic mechanism moves the anemometer located at the center of the air outlet in the positive direction of the shaft at a spacing of 5 until it detects a wind speed no greater than 2/n and stops. Back to the center point, and then detect the negative direction of the shaft

The anemometer will move in the positive direction of the shaft at a spacing of 5 until it detects a wind speed of not more than 24m/min and stops.

4. The automatic mechanism returns to the center point, moves along the 2-axis positive direction 5, and then repeats the third step. Repeat this until the wind speed in the positive direction of the Z-axis is detected to be no greater than 24m/min.

5. The automatic mechanism returns to the center point, moves 5 along the 2-axis negative direction, and then repeats the third step. This is repeated until the wind speed in the negative direction of the 2-axis is no more than 2m/min.

6. Record the wind speed at all points, and calculate the wind volume at each point by the following equation

Q=UXs

1. Calculate the total air volume of the specimen based on the calculated air volume at each point and the number of squares traveled by the automatic mechanism.

Q total =Σ _i=1^N (0.00025 )

1.At the end of the test, the total air volume data is obtained, forming a printed report, which can be linked to a printer to print.

Number	Parameter	Content
	Input power supply	AC220V 50Hz
	Electrical control	PLC control, computer operation, data acquisition, analysis, computer judgment, can directly print the report
	Specimen	Comply with the QB/T1876/IEC61855 need to measure the wind volume of hair processing equipment
	Test mounting bracket	With X moving mechanism, Z-axis lifting mechanism and specimen rotation mechanism around the Y-axis, to ensure that the specimen is installed after the air outlet aligned with the center of the wind speed measurement mobile arm position, and parallel to the anemometer, the following chart fixture reference
	Wind speed measurement	Automatic moving mechanism: servo motor drive + precision ball screw slide combination, can be Y and Z-axis direction 0-+100mm range of movement, i.e., the measurable area of 200 X200mm.
		Measuring time per point: 0-999.9s can be preset, default 30s.
		Imported wind speed sensor: 0-30m/s, resolution: 0-30m/s, resolution: 0-30m/s 0-30m/s, resolution 0.01m/s, error 0.03m/s +4% reading
	Specimen power supply	Provide rated supply voltage universal socket
	Equipment Size Weight	WDH=900X800X1650mm,about 150kg