Pulsation-Dampeners

Compressors are an important item in many production processes. Undamped roots-type rotary piston blowers and screw compressors generate high noise levels that may exceed 160 dB (A).

Compressors are important items during many production processes. Undamped roots-type rotary piston blowers and screw compressors generate high noise levels that may exceed 160 dB (A). Hereby inducing damage into the piping and its adjuncts caused by low-frequency pulsations.

 

Why pulsations dampeners?

The pressure extremes generated by the compressor are evened out with a pulsation dampener. Advantages are less periodic plant inspections and increased useful lifetime of the plant. In addition, the pulsation dampeners reduce the levels of noise radiated from the piping.

 

Extended experience

Over several decades, Q.E.I. built an outstanding reputation for supplying high quality pulsation dampeners. We have a long tradition in custom-built equipment which is designed for the complete satisfaction of the plant user. Q.E.I. demonstrated reliable, qualitative and guaranteed solutions, regardless of the installation complexity. To ensure a competitive pricing, we fabricate our dampeners in economic locations.

 

Principles of operations

One or more choke tubes connect through two or more separate expansion chambers in a single housing. The main frequencies generated by the compressor are engineered to attenuate noise. Fluctuations in pressure are significantly diminished and can be reduced to a residual peak-to-peak pulsation level, if desired. The rotary speed of the compressor and the delivered gas flow determine the number and positioning of the choke-tubes, even when a variable speed compressor is installed.

 

Custom made dampeners

Demands upon the construction of the pulsation dampeners are high, due to the extremer loadings. When a standard design no longer meets the requirements, Q.E.I. designs a custom-built dampener, which is determined by following complex studies.

 

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