Advanced Maintenance Electric DC speed adjustment experimental device

 

DC speed adjustment tr--ning device is based on the requirements of the outline of the textbook outline of "Electric Power Dragging Automatic Control System", "DC Speed Mission", "** M--ntenance Electrician (DC Specific Specification Part)". A set of modern comprehensive motors and driving series tr--ning products launched by the school -related majors. The m--n tr--ning and evaluation of the DC speed regulating experimental device for the parameter setting and system application of the Student for the DC speed regulating device. By carefully designed the m--n circuit, control circuit and DC motor load on the DC speed regulating device, students can master DC motors through tr--ning tr--ning through tr--ning tr--ning. Various typical working status of speed regulation.

 

2. Performance indicators:

 

1. Work power: ~ 3N/380V/50Hz

 

2. The capacity of the whole machine: ≤1.5kva

 

3. Specification (MM): 1500 × 700 × 1500 (about).

 

4. Weight: 300kg

 

5. Working environment: temperature -10 ℃ ～ + 40 ℃ relative humidity <85%(25 ℃)

 

3. M--n components:

 

1. Power control screen

 

(1) AC power supply

 

Provide single -phase 220V AC power supply, and the output place has overcurrent protection technology. With 1 pointer AC voltage table, indicating the power grid voltage.

 

(2) Voltage power module

 

1) The output voltage 1 is 0 to 30V, which is continuously adjusted by multiple circle potentiometers. It has a preset over -current overload protection function. The output ** current is 2A. Each power output has a level 0.5 digital voltage meter indicator.

 

(3) Instrument module

 

3) There is a DC voltage table with a range of 0-± 300V, and 3 is half.

 

4) There is a DC current meter with a range of 0-± 5A, and 3 is half.

 

The control screen is provided with a trigeminal 220V power socket.

1. Experimental purpose:

Ozone is a strong oxidant. Its oxidation ability is second only to fluorine in natural elements. Ozone can be used in water treatment for deodorization, sterilization, decolorization, iron removal, cyanide, and organic matter. This device is a demonstration experiment that uses ozone off -color discoloration. Through the hope of this experiment, the following goals are achieved:

1. By regulating different concentrations of ozone to determine its reaction time and effect.

2. Understand the oxygen decolorization through the direct observation of organic glass.

Second, the working principle of experimental device:

Ozone has a significant effect on discoloration, sterilization, and deodorization. The columns such as phenols and ozone react, and they are first oxidized into phthalate, and then phenylphenols continue to oxidize into neighboring. If there is enough ozone during the processing process, the oxidation reaction continues. In the reaction, only a small amount of phenol can be completely oxidized to carbon dioxide and water. This experimental device is only performed by ozone discoloration experiments. Ozone is gradually absorbed and decomposed as an oxidant as an oxidant. Placing polylene pheed balls in the reaction column can increase the contact area of ​​the ozone and achieve a better discoloration effect.

3. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Handling water 100 L/h;

3. Ozone can remove impurities in the water: dehumidifying sterilization, decocent, iron removal, oxide, and organic impurities.

3. Design in and out of water quality range:

Water inlet: turbidity (with color) 1 ° ~ 5 ° out of water: colorless 1 ° ～ 2 °

Note: There is no color from the water, the turbidity improves

4. Reacting column size: 柱80mm × 1300mm (2)

5. Total size of the device: 1100mm × 400mm × 1600mm

6. Work power: AC220V ± 10%, 50Hz, single -phase three -line system, 500W power, safety protection: ground protection, leakage protection, overcurrent protection