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Study of water hammer and equilibrium chimney


Service : Power supply (220V, 50Hz, single phase)
Pneumatic supply
Oscilloscope with memory
Dimensions : 1350 x 650 x 2150 mm
Weight : 100kg

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DEMANDER UN DEVIS POUR CETTE MACHINE

Rapid changes in speed in a pipe generate significant pressures or depressions due to the inertia of the water. If these pressure variations are large enough, the water becomes a compressible fluid capable of propagating high-speed waves that can cause water hammer. To dampen the shock waves and prevent damage in the pipes, equilibrium chimneys are introduced. However, they create a new phenomenon of mass oscillation.
The water hammer and equilibrium stacker, EH170, allows the study of non-permanent flows in a stainless steel serpentine pipe with a length of eleven meters and having at each of its ends a Pressure sensor. The shock waves are caused either by the rapid closing of a pneumatic valve placed downstream of the pipe, or by the closure of the flow control valve placed upstream of the flowmeter. A bypass with stop and control valves leading to a vertical tube allows the influence of an equilibrium stack to be studied.

  • Study of pressure losses in a pipe
  • Highlighting the phenomenon of water hammer
  • Calculation of the speed of sound in water and in a pipe
  • Highlighting the phenomenon of cavitation due to depression
  • Influence of a balance chimney



Technical specifications :
  • A stainless steel coil
  • A pneumatic quick closing valve
  • Two piezoelectric pressure sensors placed upstream and downstream of the coil with 4-20 mA output
  • A float flowmeter
  • A valve to regulate the flow and a float flowmeter
  • A holding tank with drain valve, containing a submerged pump
  • Power supply box with general circuit breaker, pump circuit breaker and sensor amplifier
  • A bypass with stop and control valve leading to a vertical Altuglas tube. This tube is closed at the top and has a trap for adjusting the amount of trapped air and a drone-type manometer
Options :
A compressor can be provided.
DEMANDER UN DEVIS POUR CETTE MACHINE

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