Training device of the principle of electrododelidae

Electrodialysis is a recently developed membrane separation technology. It is widely used in various industries of water treatment, which can be used for bitter salt water delations and industrial production water treatment. use.

During the operation of electrodium osmodility, due to the migration rate of ions in the solution neutral and in the switching membrane, the phenomenon of electromatization has a polarization under high current density, which changes the pH in the solution and generates scale on the exchange membrane. Caused a decrease in water production capacity and additional energy loss. Therefore, its extreme current density must be determined before the electrodiacreatment is operated to ensure that there are many methods for electrodialyte extreme current density. The commonly used method is the voltage -current method. This experiment is this method used.

Through experiment hopes, the following goals are achieved:

1. Familiar with the structure, functions, installation methods and operation methods of each part of the electromators;

2. Master the measurement and calculation method of the extreme current of the electromators;

3. Deepen the relationship between current density, liquid flow velocity, and solution in the operation of electro -infiltration operation.

2. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 100L/H

3. ion exchange membrane: different phase yang, analgesic exchange film,

4. Electrode materials: (graphite, titanium coating powder),

5. Deserting rate: 50 ～ 75.

6. The salt removal rate of electrodiacaping 析 70 ～ 80,

7. The size of the electrodiacaping device is 400 mm × 220 mm × 500 mm,

8. Total size of the device: 1100mm × 450mm × 1400mm,

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

Feature

 

1. The entire device is beautiful and generous, with a reasonable structure design, and has a strong engineering atmosphere, which can fully reflect the concept of modern laboratories;

 

2. The equipment layout is reasonable, beautiful, the structure is clear, and the overall sense is strong. It can reflect the concept of the m--n experimental equipment in the laboratory.

 

3. The equipment is a self -propelled frame structure, and the feet are installed to facilitate the disassembly m--ntenance and handling of the system.

 

4. The flow measurement uses the turbine turbine meter. The data processor has a strong compensation function for the linear coefficient of the turbine flowmeter, and the flow data directly displays the flow data.

 

5. The centrifugal pump is placed above the water tank. The centrifugal pipe is installed with a bottom valve. At the same time, a centrifugal pump is installed to start the exhaust device to avoid the centrifuge of the centrifugal pump leaf wheel and the cavity soak in the water for a long time, which greatly extend the life of the equipment.

 

6. The entire system adopts a standard industrial instrument control system, which can perform chemical principles experiments. It is also a good platform for process automation and chemical testing instrument experiments.

 

7. Device design can be observed at 360 degrees to achieve comprehensive teaching and experiments.

 

 

 

Device function

 

1. Let students fully understand the structure and characteristics of the centrifugal pump, and be familiar with the working methods and operation processes of centrifugal pumps.

 

2. Being a single pump, dual pump string parallel operation.

 

3. Familiar with various pipes and valves that form the pipelines, understand the instrument and sensor detection equipment on the spot, such as temperature, pressure, electrical power, traffic, etc., and master the measurement principles and usage methods of turbine turbines.

 

4. Measure the pump characteristic curve between the pumps (H), axis power (n), and efficiency (η) and the flow of the pump (q) under constant speed conditions.

 

5. Determine the characteristic curve of the pipeline under the opening degree of the flow regulating valve.

 

6. Can be measured by dual pump string, parallelism and pipeline characteristics.

 

7. Change the pump characteristic curve between the pumps of the centrifugal pump speed measurement pump, axis power (n), and the traffic (q) of the efficiency (η) and the pump (Q).

 

8. Integrated control of full touch, high stability data transmission, hardware encryption.