Dyhgyl-22 Tube Tube heat exchanger gas-gas heat exchange training device
Release time：2024-06-09 04:00viewed：times
Features of the device
1. The entire device is beautiful and elegant, with reasonable structural design, strong sense of integrity, and a strong sense of engineering, which can fully embody the concept of a modern laboratory .
2. The entire equipment is a self-propelled frame structure and is equipped with restr*ning feet to facilitate the disassembly, m*ntenance and transportation of the system, reflecting the technological perfection of the entire device.
3. This heat transfer coefficient measurement experimental device uses hot and cold *r as the medium and adopts a gas-gas heat exchange system. It has accurate data measurement, ideal experimental results and a high degree of automation.
4. The device uses a tube heat exchanger to exchange heat between hot and cold gases. The cold *r uses *r instead of water, which saves water resources. The dual-fan m*n and auxiliary circuit design, switching between counter-current and parallel-flow heat exchange processes, is closer to the actual industrial application.
5. The thyristor voltage regulating module is used to control the power of the heating chamber. Multiple sets of U-shaped fin heating tube preheating systems ensure fast and uniform heating. Platinum thermal resistance + thyristor + heating tube are used as the m*n means of controlling the temperature of the thermal fluid. .
6. The device design allows for 360-degree observation, enabling all-round teaching and experimentation.
Device functions
1. Understand the structure and process of the tube heat exchanger, and master the experimental method for measuring the heat transfer coefficient.
2. Compare the process and effects of countercurrent and parallel flow heat transfer experiments of tube and tube heat exchangers.
3. Measure the changes in the heat transfer coefficient of the heat exchanger when the cold and hot fluid flow rates change.
4. Measure the effects of counter-flow and parallel flow operations on the average driving force and heat transfer coefficient of the heat exchanger.
5. Full touch integrated control, highly stable data transmission, and hardware encryption.
6. The device can scan the code with a mobile terminal to obt*n a three-dimensional process video introduction of the device.
Design parameters
Cold fluid (*r) flow rate: 0~40m3/h. Cold fluid (*r) temperature: normal temperature ~ 50°C.
Thermal fluid (*r) flow rate: 0~40m3/h. Thermal fluid (*r) temperature: 80~110℃.
Utilities
: Electricity: Voltage AC220V, power 4.0kW, standard single-phase three-wire system. Each laboratory needs to be equipped with 1~2 grounding points (safety ground and signal ground).
Air: The *r comes from the fan (with its own *r source), and the hot fluid comes with a st*nless steel heater connected to the fan.
Experimental material: *r, external equipment: none.
M*n equipment
1. Heat exchanger: All 304 st*nless steel heat exchanger, with external mirror insulation layer. Hot fluid flows inside the pipes, and cold fluid flows between the pipes. The heat exchange tube specifications are Ф12×1.5 mm, with a total of 13 tubes, 1000mm long, and a total heat exchange area of 0.48m2. There are 2 arcuate baffles, and the heat exchange method can be countercurrent or parallel flow.
2. Preheater: 304 st*nless steel, heating power 3.0KW, flange detachable heating rod. Automatic temperature control.
3. Vortex *r pump: power 550W, maximum flow 90m3/h. It is softly connected to the system for shock and noise reduction, and the bypass valve adjusts the *r volume. Cold fluid inlet and outlet pipe: 304 st*nless steel, DN40, imported gate valve to adjust the flow, and the inlet section of the heat exchanger is flange connected to the flow meter.
4. Air volume measurement: gas vortex flowmeter, measuring range 8-55m3/h, 4-20mA signal output, accuracy 0.5 level.
5. Hot fluid inlet and outlet pipe: 304 st*nless steel, DN40, with insulation layer.
6. Pipeline: Made of 304 sanitary st*nless steel, st*nless steel quick-installation is used to connect the pipe.
7. Valves: Use 304 st*nless steel valves and high-quality copper valves.
8. Temperature sensor : Pt100, resolution 0.1℃, accuracy 0.5%.
9. Electrical appliances: contactors, switches, leakage protection *r switches.
10. Central processing unit: execution speed 0.64μs, memory capacity 16K, function: data processing operations.
11. Analog module: up to 16-bit resolution, sum accuracy ±0.5%, built-in RS485 communication mode.
12. Temperature module: resolution 0.1℃, accuracy 0.5%, built-in RS485 communication mode.
13. Display terminal: It adopts an all-in-one tablet touch computer and the entire digital touch screen control operation. HMI: Projected touch technology, 50 million touch points, 4G memory, function: central processor data display control.
14. Rated voltage: 220V, total power: 4kW.
15. Dimensions: 2000×550×1800mm (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.
16. 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 operation environment, learn to recognize engineering pipeline signs, and cultivate students' engineering skills concept.
17. The supporting measurement and control software can realize real-time online collection and display of experimental data, curves and equipment operating status. Terminal coverage is achieved through WIFI technology.
18. 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), exercises (built-in 6 multiple-choice questions, prompts for correct and incorrect choices), schematic diagram (can be entered from the schematic diagram) into the device). 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: Show 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 and 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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