DYHGYL-04 Centrifugal Pump Comprehensive Training Platform

1. The whole device is beautiful and elegant, with a reasonable structural design and a strong engineering flavor, which can fully reflect the concept of a modern laboratory ;

2. The equipment layout is reasonable and beautiful, the structure is clear, and the overall sense is strong, which can reflect the concept of the m*n experimental equipment in the laboratory.

3. The whole equipment is a self-propelled frame structure and is equipped with locking feet to facilitate disassembly, m*ntenance and transportation of the system.

4. The flow measurement adopts the method of turbine flowmeter. The data processor has a strong compensation function for the linear coefficient of the turbine flowmeter and directly displays the flow data.

5. The centrifugal pump is placed above the water tank. The centrifugal pump inlet pipe is installed with a bottom valve. At the same time, a centrifugal pump starting exhaust device is installed to avoid the centrifugal pump impeller and cavity being immersed in water for a long time, greatly extending the life of the equipment.

6. The whole system adopts standard industrial instrument control system, which can be used for chemical principle experiments. It is also a good platform for process automation and chemical testing instrument experiments.

7. The device is designed to allow 360-degree observation, enabling all-round teaching and experiments.

Device function

1. Make students fully understand the structure and characteristics of centrifugal pumps, and be familiar with the working mode and operation process of centrifugal pumps.

2. Capable of single pump or double pump series and parallel operation.

3. Be familiar with the various pipe fittings and valves that make up the pipeline, understand the local display instruments and sensor detection equipment such as temperature, pressure, electric power, flow, etc., and master the measurement principles and usage of turbine flowmeters.

4. Determine the pump characteristic curve between the pump head (H), shaft power (N) and efficiency (η) and the pump flow rate (Q) under constant speed conditions.

5. Determine the pipeline characteristic curve at a cert*n opening of the flow control valve.

6. Capable of testing the performance of dual pumps in series and parallel and pipeline characteristics.

7. Change the speed of the centrifugal pump to measure the pump head (H), shaft power (N), efficiency (η) and pump flow rate (Q) between the pump characteristic curve.

8. Full touch integrated control, highly stable data transmission, and hardware encryption.

Design Parameters

Single pump: liquid flow rate: 0.2~7.2m3/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 (η): 0-60%, centrifugal pump speed: 0-2900r/min.

Double pumps in series: liquid flow rate: 0-10.5m3/h, centrifugal pump outlet pressure: 0-0.4MPa, centrifugal pump head (H): 0-40m, centrifugal pump shaft power (N): 0.43-1.85KW, centrifugal pump efficiency (η): 0-60%, centrifugal pump speed: 0-2900 r/min.

Double pumps in parallel: liquid flow rate: 0-14.0m3/h, centrifugal pump outlet pressure: 0-0.2MPa, centrifugal pump head (H): 0-20m, centrifugal pump shaft power (N): 0.43-1.85KW, centrifugal pump efficiency (η): 0-60%, centrifugal pump speed: 0-2900 r/min.

Liquid temperature: room temperature.

public facilities

Water: The device is equipped with a transparent water tank, which is connected to tap water. During the experiment, the water enters the test pipeline through a centrifugal pump and is circulated.

Electricity: Voltage AC220V, power 2.0KW, 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.

Major equipment

1. Single-phase vector inverter, specification: (0-50) Hz.

2. Pressure sensor : measuring range 0-0.4MPa, accuracy level 0.5, quantity 2;.

3. Negative pressure sensor: measuring range -0.1-0MPa, accuracy level 0.5, quantity 2.

4. Photoelectric speed sensor: measuring range 0~2999rpm, accuracy 1rpm, speed detection mechanism .

5. N32 turbine flowmeter: 0.5~16m3/h, resolution 0.001 m3/h, 4-20mA remote transmission digital display, flow detection mechanism.

6. 304 st*nless steel centrifugal pump: power 1.1KW, maximum flow 8.2m3/h, quantity 2 units.

7. Water tank: capacity 120L, high-quality transparent plexiglass, with water storage and emptying bottom valve, pipeline circulation return water and pump suction inlet partition design.

8. Pipeline: transparent material, wall thickness ≥2.5mm, pipeline flange connected to turbine flowmeter.

9. Temperature sensor: Pt100, resolution 0.1℃, accuracy 0.5%, digital display.

10. Electrical appliances: contactors, switches, leakage protection *r switches.

11. Central processing unit: execution speed 0.64μs, memory capacity 16K, function: data processing operation.

12. Analog module: up to 16-bit resolution, total accuracy ±0.5%, built-in RS485 communication mode.

13. Temperature module: resolution 0.1℃, accuracy 0.5%, built-in RS485 communication mode.

14. Adopt all-in-one tablet touch computer, full digital touch screen control operation. HMI: projection touch technology, 50 million touch points, memory 2G, function: central processor data display control.

15. Rated voltage: 220V, total power: 2.0kW.

16. Dimensions: 2000×650×1900mm (length×width×height), movable design, with brake wheels, high-quality aluminum alloy profile frame, no welding points, easy installation and disassembly, and horizontal adjustment support casters.

17. Engineering Identification: This includes equipment position numbers, pipeline flow arrows and identification, valve position numbers and other engineering equipment concept support, so that students can be in a safe experimental operation environment, learn to recognize engineering pipeline identification, and cultivate students' engineering concepts.