Dyhgly-05 Comprehensive fluid mechanics training platform
Release time：2024-06-08 10:01viewed：times
Device Features
1. The experimental device has stable data and good reproducibility, which can give the experimenter a clearer concept of fluid resistance.
2. The entire device is beautiful and elegant, with reasonable structural design and strong engineering flavor, which can fully embody the concept of a modern laboratory .
3. The equipment layout is reasonable and beautiful, with clear structure and strong sense of integrity, and can reflect the concept of m*n experimental equipment in the laboratory.
4. The equipment as a whole is a self-propelled frame structure and is equipped with restr*ning feet to facilitate the disassembly, m*ntenance and transportation of the system, which reflects the technological perfection of the entire device.
6. The pipeline pressure measurement adopts the industrial standard pressure equalizing ring method, which makes the pressure measurement stable and accurate; it adopts differential pressure sensor measurement, which has beautiful craftsmanship and easy operation.
7. The entire system adopts standard industrial instrument control system, which can carry out experiments on chemical engineering principles . It is also a good platform for process automation and chemical testing instrument experiments.
8. The device design allows for 360-degree observation, enabling all-round teaching and experimentation.
Device functions
1. Learn the measurement methods of str*ght pipe friction resistance ΔPf and str*ght pipe friction coefficient λ. ;
2. Determine the relationship between the local resistance coefficient ζ of the shrink pipe and Re;
3. Determine the relationship between the local resistance coefficient ζ of the valve and Re;
4. Determine the flow coefficient C0 of the orifice flowmeter and understand the principles and characteristics of the orifice flowmeter. ;
5. Determine the flow coefficient CV of the Venturi flow meter and understand the principles and characteristics of the Venturi flow meter;
6. Determine the performance curve of the single-stage centrifugal pump at a fixed speed;
7. Determine the performance curve of high-resistance and low-resistance pipelines ;
8. It can be disassembled and assembled in a modular manner to expand students' thinking and practical abilities.
9. The flow status of the experimental medium in the pipeline and turbine flowmeter is clearly visible;
10. Full touch integrated control, highly stable data transmission, and hardware encryption.
Design parameters
Fluid resistance:
Smooth tube: Reynolds number: 0.80~6.0×104, liquid flow: 0.5~10 m3/h, pressure difference range: 10~100KPa. Operation at normal temperature and pressure.
Rough pipe: Reynolds number: 0.60~6.0×104, liquid flow: 0.5~10 m3/h, pressure difference range: 20~150KPa. Operation at normal temperature and pressure.
Valve local resistance: Reynolds number 1.35~6.0×104, liquid flow: 0.5~10 m3/h, pressure difference range: 10~200KPa. Operation at normal temperature and pressure.
Flow and performance measurement:
Venturi flow meter flow: 0.2~10m3/h, pressure difference range: 10~200KPa.
Orifice flowmeter flow rate: 0.2~10m3/h, pressure difference range: 10~200KPa.
Turbine flowmeter flow rate: 0.5~8.0m3/h.
Centrifugal pump characteristics and pipeline performance:
liquid flow rate: 0~7.2m3/h, centrifugal pump outlet pressure: 0-0.2MPa, centrifugal pump head (H): 0-20m,
centrifugal pump shaft power (N): 0.43- 0.85KW, centrifugal pump efficiency (eta): 0-60%, centrifugal pump speed: 0-2900r/min.
Liquid temperature: normal temperature.
Utilities
Water: The device comes with a transparent water tank and is connected to tap water. During the experiment, it enters the test pipeline through the centrifugal pump and is recycled.
Electricity: voltage AC220V, power 1.0KW, standard single-phase three-wire system. Each laboratory needs to be equipped with 1~2 grounding points (safety ground and signal ground).
Experimental materials: clean tap water, external equipment: none.
M*n equipment
1. Thick pipe measurement section: DN 20mm, transparent and visible, pipe length 1000 mm, Re range 0.80~6.0×104.
2. Thin tube measuring section: DN 15mm, transparent and visible, 1000 mm, Re range 0.60~6.0×104.
3. Local resistance: DN 15mm, four-point pressure measurement, 1000 mm, Re range 1.35～6.0×104, one valve installed.
4. Turbine flow sensor: measuring range 0.5-10 m3//h, resolution 0.001 m3/h, 4-20mA remote transmission digital display, flow detection mechanism , transparent and visible shell.
5. Orifice plate flowmeter: DN20, the inner orifice plate is made of st*nless steel, the shell is transparent and visible, and the pressure is taken from the annular gap.
6. Venturi flowmeter: DN20, the shell is transparent and visible, and the pressure is taken from the annular gap.
7. Pressure difference sensor: Pressure difference range: 10~200KPa, resolution 0.01 KPa, 4-20mA output digital display, pressure detection mechanism.
8. Circulating water tank: ≥100L, high-quality transparent organic glass, with water storage and emptying bottom valve, and partition plate design between the pipeline return water and the pump suction inlet.
9. Pipeline: transparent material, wall thickness ≥2.5mm.
10. Temperature sensor: Pt100, resolution 0.1℃, accuracy 0.5%, digital display.
11. Speed: digital display, measuring range 0~2999rpm, accuracy 1rpm.
12. 304 st*nless steel centrifugal pump: power 550W, maximum flow 6m3/h, head 14m.
13. Electrical appliances: contactors, switches, leakage protection *r switches.
14. Central processing unit: execution speed 0.64μs, memory capacity 16K, function: data processing operations.
15. Analog module: up to 16-bit resolution, sum accuracy ±0.5%, built-in RS485 communication mode.
16. Temperature module: resolution 0.1℃, accuracy 0.5%, built-in RS485 communication mode.
17. Use an all-in-one tablet touch computer to control the whole process with digital touch screen. HMI: Projected touch technology, 50 million touch points, 2G memory, function: central processor data display control.
18. Rated voltage: 380V, total power: 1kW, mass: about 135 kg
19. Overall dimensions: 2000×580×1700mm (length×width×height), movable design, with brake wheels, high-quality aluminum alloy Profile frame, no welding points, easy installation and disassembly, horizontally adjustable support casters.
20. Engineering identification: including equipment tags, pipeline flow direction arrows and logos, valve tags and other engineering equipment concepts, so that students can be in a safe experimental operating environment, learn to recognize engineering pipeline signs, and cultivate students' engineering skills concept.
21. Virtual simulation software for electrical installation of building buildings and smart buildings. Based on unity3d design, users can choose different interactive interface sizes according to computer configuration, and can choose from six image quality levels. The model in the software can be rotated 360°, enlarged, reduced, and translated. There are assistant prompts during the use of the software, and the content is as follows: A. Wet alarm system 1. System overview: Overview of wet alarm system 2. Equipment awareness: equipped with the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), and exercises (Built-in 6 multiple-choice questions, prompts for correct and incorrect choices), schematic diagram (can be entered into the device from the schematic diagram). Equipment includes: nozzle, water flow indicator, signal butterfly valve, exhaust valve, fire alarm control, high pipe pressure gauge, high water tank, Wia control cabinet, pressure stabilizing tank, flow switch, terminal water testing device, dr*nage facilities, water pump connection alarms, hydraulic alarms, delayers, wet alarms, butterfly valves, check valves, fire pumps, safety pressure regulators, and fire pools. 3. Principle display: Show the working principle of the wet alarm system, three-dimensional animation demonstration, the three-dimensional model is translucent, and the internal water flow can be seen. Equipped with a practice module (built-in 4 multiple-choice questions, with prompts for correct and incorrect choices) 4. Design layout: There are multiple-choice questions and calculation questions, each question 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 awareness: equipped with the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), exercises (built-in 8 multiple-choice questions, with prompts for correct and incorrect choices), Schematic diagram (access to the device from the schematic diagram). Equipment includes: nozzle, HFC-227 storage bottle, bottle head valve, heptafluoropropane one-way valve, high-pressure hose, gas one-way valve, safety valve, weighing alarm, electromagnetic starter, selection valve, smoke alarm, fire Alarm controller. 3. Principle display: Demonstrate the working principle of the gas fire extinguishing system, three-dimensional animation demonstration, the three-dimensional model is translucent, and the internal gas can be seen. Equipped with a practice module (built-in 3 multiple-choice questions, with prompts for both correct and incorrect choices) 4. Design layout: There are 6 multiple-choice questions, each question is scored, and the correct answer and score will be displayed after submission. C. Escape drill: adopted Teaching is conducted in the form of fun games. Escape from the burning room within a limited time. If you make a wrong choice, you will directly enter the score interface.
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