Softness and salt removal experimental device

The ion exchange softening method is widely used in the processing engineering. The use of strong acid cations exchange resin is also common. As a water treatment engineering technical personnel, the measurement method of this resin exchange capacity (that is, the full exchange capacity) should be mastered and the operation and operation of the soft water device should be understood.

Through this experiment, I hope to achieve the following goals:

1. Familiar with Shunliu regeneration fixed bed operation process;

2. Deepen the understanding of the basic theory of sodium ion exchange.

2. Experimental principle:

When water cont--ning calcium salt and magnesium salt switches the resin with cations with cations, the CA2+and MG2+ions in the water exchange with the exchanging ions (NA+or H+) in the resin to reduce the CA2+, MG2+content in the water or basically. All are removed, and this process is called water softening. After the resin f--ls, the resin must be regenerated, that is, the calcium and magnesium ions adsorbed on the resin are replaced, and it is replaced with a new exchanging ion. Sodium ion exchanges resin regeneration for salt (NACI), hydrogen ion -type exchange resin hydrochloric acid (HCI) or sulfuric acid (H2SO4). The basic reaction type is as follows:

3. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 40 ℃

2. Treatment of water: 35L ~ 56L/H

3. Softening exchanges m100mm × 1500mm,

4. Device shape size: 1100mm × 500mm × 2000mm,

5. Work power: AC220V ± 10%, 50Hz, single -phase three -line system, 300W power, safety protection: ground protection, leakage protection, overcurrent protection

Four, the m--n configuration:

1. Soft -sources: transparent organic glass material, wall thickness 6mm, (ø100mm × 1400mm) 1 (outer diameter size);

2. 1 raw water tank: 1 regenerative liquid water tank, white PP board, thickness of 10mm, empty valve on the bottom plate, which is convenient for cleaning the water;

3. 1 set of raw water tank fabric stirring, 304 st--nless steel mixing paddle: 25W of power, speed 90rpm;

4. Anti -corrosion improvement pump 1: Flow: 27 ～ 32 (L/min), r--sing: 3.1 ～ 4.3 (m),

5. Flow measurement and adjustment: pipeline flowmeter, 1 sewage flow meter, the range of volume is: 10-100L/h;

6. 1 set of water inlet valves in each sediment, 1 set of valves for each sedimentation column, and 1 dr--nage pipe;

1. System summary

 

The simulation driving tr--ning system can realize the three major module functions of teaching, tr--ning, and assessment. It is a full -function driver comprehensive tr--ning system for urban r--l transit vehicles. Driving, operating characteristics, operating conditions and audiovisual environment.

 

The simulation driving tr--ning system covers new drivers and active driver manipulation skills tr--ning and assessment functions, so that students can comprehensively, comprehensively, and systematically grasp the basic knowledge and theoretical rules of urban r--l transit vehicles. The ability to deal with driving and emergencies.

 

2. Simulation driving tr--ning system

 

Basic simulation driver provides students with an economic practical, reliable and effective intermediate learning platform for students to enter a full -functional simulation driver. Students can be familiar with driver manipulation, instrumentation, display equipment and other basic information through the learning of basic simulation driver, mastering the basic operating procedures, and laying a reliable foundation for more in -depth tr--ning for the above -function simulation driver.

 

The basic simulation driver has the following characteristics:

 

1. Driver manipulation platforms that m--nt--n the same urban r--l transit vehicle manipulation platform;

 

2. Have a complete manipulation and display equipment that is consistent with the authentic manipulation of the equipment;

 

3. Being able to reappear from the aspects of vision, hearing, manipulation, and the sense of reality, the operating conditions, manipulation characteristics, traction/braking characteristics, and other characteristics of urban r--l transit vehicles in different situations;

 

4. Able to simulate all kinds of faults and emergencies related to the operation of running lines and urban r--l transit vehicles, which can achieve the troubleshooting exercise of f--lure and emergencies based on the handicraft hardware and multi -functional fault treatment screens;

 

5. Able to simulate all the sound effects of urban r--l transit vehicles when running. These sounds include the external sound and the inside of the vehicle at different speed and different operating environments;