DY-131 Softening and Desalination Training Platform
Release time：2024-06-25 23:31viewed：times
1. Experimental purpose:
Ion exchange softening method is widely used in treatment engineering. The use of strong acid cation exchange resin is also very common. As a water treatment engineering technician, you should master the determination method of the exchange capacity (i.e., total exchange capacity) of this resin and understand the operation of the softening water device.
Through this experiment, we hope to achieve the following goals:
1. Familiar with the operation process of the downstream regeneration fixed bed;
2. Deepen the understanding of the basic theory of sodium ion exchange.
2. Experimental principle:
When water cont*ning calcium and magnesium salts passes through an exchanger equipped with cation exchange resin, the Ca2+ and Mg2+ ions in the water are exchanged with the exchangeable ions (Na+ or H+) in the resin, so that the Ca2+ and Mg2+ content in the water is reduced or basically completely removed. This process is called water softening. After the resin f*ls, it must be regenerated, that is, the calcium and magnesium ions adsorbed on the resin are replaced with new exchangeable ions. Sodium ion exchange resin is regenerated with salt (NaCI), and hydrogen ion exchange resin is regenerated with hydrochloric acid (HCI) or sulfuric acid (H2SO4). The basic reaction formula is as follows:
3. M*n technical indicators and parameters:
1. Ambient temperature: 5℃～40℃
2. Processed water volume: 35L～56L/h
3. Softening exchange column Ø100mm ×1500mm,
4. Device dimensions: 1100mm×500mm×2000mm,
5. Working power supply: AC220V±10%, 50Hz, single-phase three-wire system, power 300W, safety protection: with grounding protection, leakage protection, overcurrent protection,
4. M*n configuration:
1. Softening column: transparent organic glass material, wall thickness 6mm, (Ø100mm×1400mm) 1 piece (outer diameter size);
2. 1 raw water tank: 1 regeneration liquid water tank, white PP board, thickness 10mm, with a dr*n valve on the bottom plate, which is convenient for dr*ning water;
3. The raw water tank is equipped with 1 motor stirrer and 1 set of 304 st*nless steel stirring paddles: power 25W, speed 90rpm;
4. 1 anti-corrosion lifting water inlet pump: flow rate: 27~32 (L/min), head: 3.1~4.3 (m),
5. Flow measurement and regulation: pipeline flowmeter, 1 sewage flowmeter, range: 10~100L/h;
6. 1 set of water inlet valves for each sedimentation column, 1 set of vent valves for each sedimentation column, and 1 set of dr*nage pipes;
7. 1 set of cation resin,
8. Power control system: 1 double-sided matte dense pattern spray-coated electric control box, leakage protector (Delixi brand), voltmeter, lockable button switch, wire pipe, etc.,
9. Matching UPVC connecting pipes and valves (Zhongc* brand).
10. St*nless steel frame test bench (30mm×30mm st*nless steel square tube, equipped with casters for universal wheels with locking feet), etc.
11. Virtual simulation software for electrical installation of building buildings and intelligent buildings Based on unity3d design, users can choose different sizes of interactive interfaces according to computer configuration, and can choose six levels of image quality. The model in the software can be rotated 360°, enlarged, reduced, and translated. There are assistant prompts during the use of the software, as follows: A. Wet alarm system 1. System overview: Overview of wet alarm system 2. Equipment recognition: It has the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), exercises (6 built-in multiple-choice questions, with prompts for correct and incorrect choices), and schematics (you can enter the equipment from the schematics). The equipment includes: sprinklers, water flow indicators, signal butterfly valves, exhaust valves, fire alarm controls, high-pressure gauges, high-level water tanks, Wia control cabinets, pressure regulators, flow switches, terminal water testing devices, dr*nage facilities, water pump connectors, hydraulic alarms, delays, wet alarms, butterfly valves, check valves, fire pumps, safety pressure regulators, and fire water tanks. 3. Principle display: Display the working principle of the wet alarm system, 3D animation demonstration, and semi-transparent 3D models , so you can see the internal water flow. Equipped with practice module (built-in 4 multiple-choice questions, with prompts for correct and wrong choices) 4. Design layout: There are multiple-choice questions and calculation questions, each of which is scored, and the correct answer and score will be displayed after submission B. Gas fire extinguishing system 1. System overview: Overview of gas fire extinguishing system 2. Equipment cognition: It is equipped with the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), practice (built-in 8 multiple-choice questions, with prompts for correct and wrong choices), schematic diagram (you can enter the equipment from the schematic diagram). The equipment includes: nozzle, HFC-227 storage bottle, bottle head valve, heptafluoropropane check valve, high-pressure hose, gas check valve, safety valve, weighing alarm, electromagnetic starter, selection valve, smoke alarm, fire alarm controller. 3. Principle display: Display the working principle of the gas fire extinguishing system, 3D animation demonstration, 3D model is semi-transparent, and the internal gas can be seen. Equipped with practice module (built-in 3 multiple-choice questions, with prompts for correct and wrong choices) 4. Design and layout: There are 6 multiple-choice questions, each with scores, and the correct answer and score will be displayed after submission . C. Escape drill: Teaching in the form of fun games, escape from the burning room within a limited time, and wrong choices will directly enter the score interface.
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