Pulsation damper in reciprocating compressor device

Abstract

The invention relates to a pulsation damper in a reciprocating compressor device, the pulsation damper comprises a cavity and an elastic membrane, wherein the elastic membrane separates inside of thecavity into a pressure stabilization cavity and a working cavity, the pressure stabilization cavity is fully filled with pressure stable gas while working, the working cavity is provided with an air cylinder connector and a working medium communication port, the air cylinder connector is used for connecting an air cylinder air inlet or an air cylinder air outlet of the reciprocating compressor, and the working medium communication port is used for feeding the working medium or discharging the working medium out of the working cavity. Compared with the prior art, with the pulsation damper provided by the invention, when pressure fluctuates, the fluctuating pressure acts on the membrane to make the membrane generate flexural deflection, and thus, pressure fluctuation can be reduced effectively, and a vibration attenuation effect can be improved; further, a structure like a pore plate is formed by combination with internal components, thus, length of a resonance tube of the air cylinder and the damper can be changed, and air flow in an equipment can be changed into a travelling wave from standing waves, thereby, unevenness of air flow pressure is reduced, equipment damping effect is enhanced further, and an aim of vibration attenuation is realized.

Description

technical field [0001] The invention belongs to the technical field of reciprocating compressors, and relates to a pulsation buffer in a reciprocating compressor device, in particular to a pulsation buffer in a reciprocating compressor device using a diaphragm. Background technique [0002] Reciprocating compressors are widely used in petroleum, chemical, energy, transportation and other fields. Due to the periodicity and intermittent nature of its suction and exhaust process, the pressure and velocity of the gas in the pipeline change periodically, which excites the vibration of the pipeline system and causes a series of hazards, such as reducing the volumetric efficiency of the compressor and reducing the volumetric efficiency of the compressor. Valve work deteriorates, power consumption increases, and even safety accidents such as failure of control instruments, loosening of pipeline accessories and connection parts or fatigue damage occur. Therefore, reducing airflow pu...

AI Technical Summary

Problems solved by technology

However, due to the structure, foundation, and space constraints of the compressor unit, the buffer is not allowed to be close to the cylinder, and the volume of the buffer cannot be large. In addition, the working conditions of the compressor are complex and changing, so that the reciprocating compressor unit generally cannot achieve the reduction. Vibration requirements affect equipment production safety

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