Performance measurement experimental device of mixer performance

1. Master the measurement method of stirring power curve.

2. Understand the factors that affect the stirring power and its connections.

3. Use the carboxymethyl cellulose (CMC) aqueous solution to determine the liquid -hydraulic mixing power curve.

4. Use CMC aqueous solution and --r to measure the power curve of the gas -hydraulic stirring.

Design Parameters

*r flow: 0 ~ 160 L/h.

Stirring voltage: 0-200V, speed: 100--500 R/min.

Operation pressure: normal pressure operation. Temperature: normal temperature.

public facilities

Water: None.

Electric: voltage AC220V, power 1.5kW, standard single -phase three -line system. Each laboratory needs to be configured with 1-2 connection locations (safe and signal places).

Qi: The --r comes from the compressor (its own gas source).

Experimental materials: carboxymethyl cellulose (CMC), outer equipment: viscosity (user self -equipped).

Major equipment

1. Organic glass stirring kettle: Inner diameter φ285mm, four baffles are equipped in the kettle, the mixing paddle is used with a six -leaf leaf -type turbine, and a circular gas distributor is provided under the paddle.

2. Stirring motor: power: 200W, speed: 0-500 R/min.

3. Voltage table: *501 Yu Dian Displayer.

4, current table: *501 Yu Dian digital display instrument.

5. Digital temperature meter: *501 Yu Dian digital temperature display.

6. Digital speed list: 0-2000r/min, with tone tune.

7. Gas flow detection: rotor flowmeter, the flow range is 60-600L/h.

8. Oil -free mute --r compressor: Pressure control is self -activated, power is 1.1kW, exhausts is 140L/min, and st--nless steel gas distributor.

I. Overview

 

The device uses a universal small -capacity crystal tube DC speed regulating circuit. The m--n circuit is a single -phase bridge semi -control structure. The system uses voltage negative feedback and current positive feedback control, and has a current off -departure feedback link and series micro -branch correction network. This device is in line with the "Career Standards" and the "Tr--ning Equipment Industry Standards" issued by the Ministry of Labor and Social Security of the People's Republic of China, which is suitable for various secondary vocational and technical schools. Labor tr--ning and skill appr--sal units' teaching and tr--ning and m--ntenance of electricity in the middle/** practical assessment and skill appr--sal of electricians.

 

This device has a expansion interface, leakage protection, and special fault setting box. It can make its own unit constitute a single -closed rim with a static and DC speed regulating control system. The fault point can be randomly set according to the requirements of teaching and assessment.

 

2. Technical performance

 

1. Enter power supply: single phase (220V+_10 % 50Hz)

 

2. AC power supply: single phase AC220V50Hz

 

3. Rectoma output voltage: DC180V

 

4. ** Output current: DC2A

 

5. Inspirational voltage: DC180V

 

6. Speed regulation range: D = 10

 

7. Static difference S is less than or equal to 10%

 

8. The working environment temperature range -10 ℃ to+40 ℃ The relative humidity is less than 85%(25 ° C) above sea level

 

9. The installation capacity is less than 1.5kva

 

Third, the basic configuration of the device

 

1. DMO1 power control screen

 

(1) AC power supply: single -phase ~ 220V power supply (with short -circuit protection).

 

(2) DC power supply: 220V/0.5A DC inspirational power supply, providing an excitation power supply for DC generators.

 

(3) There is a isolation transformer, which provides a guarantee for personal safety, and also provides convenience for the oscilloscope to observe the waveform.

 

(3) Measurement instrument