1. System function overview

The system is controlled by an industrial computer, which can test the fan speed, torque, vibration, noise, temperature and humidity, current, power, rated point air pressure measurement, rated point air volume measurement, output power PS, efficiency Eff, maximum air pressure and Various characteristic curve tests. The characteristic curve test is carried out on the test bench. All project test procedures are collected and tested by the computer, and the test results are displayed.

The computer system adopts WIN7/WIN8 operating system with beautiful man-machine interface, which can collect, record, store and display test data and results of various items, print test data and characteristic curves, and provide convenient operation, flexible adjustment, and intuitive and clear man-machine interface Computer software.

This system can use a fully automatic way to control the inlet/outlet air volume equipment, so that the tested fan can work at a specified pressure point, or the tested fan can work at a specified pressure range.

This system can control variable frequency motors and frequency converters for speed regulation tests, and has the following advantages:

1. By controlling the compensating fan and overcoming the wind resistance of the test air pipe, the extreme performance of the fan can be tested.
2. Change the speed of the measured fan to obtain the complete performance curve of the fan at different speeds and different wind resistances.

2. Production standards:

1. This system is designed and manufactured according to GB/T1236.
2. This system uses the orifice plate method for measurement, and the orifice plate measurement system is manufactured according to GBGB/T2624-2006.

3, system composition

This system is composed of a central control computer and a measurement system. During the test, the intelligent instrument transmits data such as pressure, temperature, speed, torque, and power to the computer, and performs data processing through the integrated operating software of the system. The measurement parameters can be controlled automatically or manually, and the fan curve diagram will be produced.

The various parts of the system communicate through the advanced CAN bus. The randomly installed touch screen can display the measurement data and results in real time. The system can work independently from the computer.

4, measurement parameters and range

1. Pressure: 0-4000pa Accuracy: 1%
2. Flow rate: 160000m3/h Accuracy: 1%
3. Temperature: -50-150 degrees, accuracy: 0.5 degrees
4. Speed ​​measurement: 0-4000rpm Accuracy: 1rpm (optional)
5. Torque: 0-50N/m Accuracy: 0.1N/m (optional)
6. Power: 0-45KW Accuracy: 1%
7. Vibration test range: 0～100mm/s (vibration speed) Accuracy: 1.5% (optional)
9. Master touch LCD screen 10-inch industrial-grade resistive screen
10. Noise test range: 30-130dB accuracy: ±1.5dB (optional)
11. Fan efficiency: 0-100% accuracy: 1.5%

5, main equipment configuration

1. One industrial computer, including host and display (optional)
2. Air chamber and duct drawings: including detailed information on the inlet and outlet side test section, common section, measuring orifice plate and other components, processing technology, control tolerances, and sensor installation location and other detailed information. (Specific consultation on specific ducts)
4. A set of test system hardware, see the table below for details. With touch screen display operation panel.
5. A set of test software, with various types of test ducts.
6. Test system host
7. System control cabinet (optional inverter with power required by users-optional accessories).

6, detailed equipment configuration

System site photos

Standard fire fan and test report provided by Tianjin Fire Research Institute

Display data comparison with the tested standard fan curve graph