Русский
NTC-11.91.2 “Fluid mechanics”
L0.00
The training laboratory stand is intended to perform laboratory works on ‘’ Hydraulics’’ at secondary specialized colleges and higher education establishments.
The stand allows to study characteristics of dynamic pumps, installations with two running pumps (connected in sequence and in parallel), as well as pipelines.
The stand consists of two isolated subsystems. The first (main) subsystem has a closed water circulation system (doesn’t require a water supply connection).
The first subsystem accommodates:
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two pumping stations;
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a hydraulic tank;
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pipelines being tested;
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devices to measure jet pressure;
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a head tank;
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data managing and measuring system, control system.
The measuring system allows determining fluid pressures and flow speeds at various points in the system, as well as measuring flows volumetrically and using flow meters.
The jet pressure measuring device allows determining parameters of jet impact on a flat surface (a round steel disc), at various distances between the orifice and the surface.
The second subsystem of the stand is only used when studying types of fluid flows. Colored fluid is used to visualize the flow. The subsystem is connected to the water supply and water drain systems.
The front panel of the stand’s control system is separated into two parts: electric and hydraulic.
The electric part of the front panel accommodates:
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an automatic switch;
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numeric displays of measuring instruments;
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signaling lamps indicating power supply to the stand.
The hydraulic part of the front panel accommodates instruments, hydraulic automation elements and controls. For convenience, the hydraulic panel shows the hydraulic circuit diagram
The work table accommodates the pipelines being tested.
The tank and electric pumps are installed at the bottom of the stand’s frame.
All parts of the frame (included the painted ones) that come into contact with water are made the stainless steel, bronze and brass.
The stand accompanied by a set of guides and technical documentation for the teaching personnel.
Experiments provided
- Studying the methods to determine water flows: comparing manual and semiautomated methods.
- Studying the fluid flow types: visualizing laminar and turbulent flows.
- Studying characteristics of pipelines of low types varying from laminar to turbulent in a round pipe and assessing loss of pressure head.
- Studying loss of pressure head when flowing through a hydraulic resistance in the form of flow restriction. Determining the hydraulic resistance coefficient.
- Studying loss of pressure head when flowing through a hydraulic resistance in the form of flow expansion. Determining the hydraulic resistance coefficient.
- Studying loss of pressure head when flowing through a hydraulic resistance in the form of diaphragm. Determining the hydraulic resistance coefficient.
- Studying loss of pressure head when flowing through a hydraulic resistance in the form of a flap. Determining the hydraulic resistance coefficient of the flow regulation device.
- Studying the impact of a free-discharging jet of fluid on a mechanical obstacle.
- Illustrating the Bernoulli equation, pressure head diagrams.
- Determining head-capacity characteristics of a pump.
- Studying characteristics of pumps connected in parallel.
- Determining characteristics of pumps connected in sequence.
Technical specifications
| Power supply | ~50 Hz, 220 V (on phase 220 V, 50 Hz) | |
| Consumed power, kW, not more than | 3 | |
| Overall dimension of the stand, not more than: | ||
| width, mm | 2010 | |
| height, mm | 1960 | |
| depth, mm | 750 | |
| Overall dimension of hydraulic station, not more than: | ||
| width, mm | 450 | |
| height, mm | 320 | |
| depth, mm | 700 | |
| Weight of the stand, kg, not more than | 170 | |
Scope of delivery
- Training laboratory stand – 1 pc.;
- Data sheet – 1 pc.;
- CD with accompanied documentation – 1 pc.