DY-523 Dust Particle Size Distribution Measurement Experimental Platform
Release time：2024-06-29 07:00viewed：times
1. Principle, purpose and characteristics:
The dust treated by the dust removal system has a cert*n particle size distribution. The degree of harm to human health and the applicable dust removal mechanism are different for different dust dispersions. The determination of dust particle size distribution can provide basic data for the design, selection and research of dust removal mechanism of dust collectors. The determination methods of dust particle size distribution include Bako centrifugal classification determination method, liquid gravity sedimentation method (pipette method) and inertial impact method. This device system is liquid gravity sedimentation method (pipette method).
Liquid gravity sedimentation method is based on the principle that particles of different sizes have different sedimentation speeds in liquid under the action of gravity. The speed of particles when they are naturally settled at a constant speed in a liquid (or gas) medium is called sedimentation velocity, and its size can be expressed by Stokes formula.
2. M*n parameters:
1. It can be freely selected to be divided into 6 sections from 2 to 40μm,
2. There are 8 levels in total.
3. Device dimensions: 800×400×1500mm
4. Power supply 220V, power 800W,
5. The dispersion liquid used varies according to the type of powder. It is recommended to use talcum powder for the experimental powder. The dispersion liquid is sodium hexametaphosphate aqueous solution with a concentration of 0.003mol/L.
III. M*n configuration:
1. 3 sedimentation bottles;
2. 3 pipettes;
3. 3 10mL cont*ners with three-way pistons;
4. 5 weighing bottles;
5. 2 syringes;
6. 3 latex tubes.
7. 1 set of constant temperature water bath made of transparent organic glass,
8. 1 heating tube, power 800W,
9. 1 digital temperature controller,
10. 1 set of temperature control system,
11. Power control system: 1 double-sided matte dense spray electric control box, leakage protector (Delixi brand), self-locking button switch with light,
10. St*nless steel frame test bench (30mm×30mm st*nless steel square tube, equipped with casters are all universal wheels with locking feet), etc.
11. Virtual simulation software for electrical installation of building and intelligent building Based on unity3d design, users can choose different sizes of interactive interface 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, the contents are as follows: A. Wet alarm system 1. System overview: Overview of wet alarm system 2. Equipment recognition: It is equipped with the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), exercises (built-in 6 multiple-choice questions, with prompts for correct and wrong choices), and schematic diagrams (you can enter the equipment from the schematic diagram). 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-stabilizing tanks, flow switches, terminal water testing devices, dr*nage facilities, water pump connectors, hydraulic alarms, time delays, wet alarms, butterfly valves, check valves, fire pumps, safety pressure-stabilizing valves, 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 that the internal water flow can be seen. 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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