Reciprocating compressor indicator diagram operation device and control method

Abstract

The invention discloses a reciprocating compressor indicator diagram operation device and a control method, and particularly relates to the technical field of reciprocating compressor fault diagnosis.The reciprocating compressor indicator diagram operation device comprises a detection unit, wherein the connection end of the detection unit is connected with a filter module; the output end of the filter module is connected with a de-duplication module; the output end of the de-duplication module is connected with a data processing module; the connection end of the data processing module is connected with an oscilloscope and a comparative analysis module respectively; the connection end of the comparative analysis module is bidirectionally connected with databases. According to the reciprocating compressor indicator diagram operation device, similar signal frequency bands detected by an air pressure sensor and a vibration sensor are filtered by the de-duplication module, the vibration ofthe reciprocating compressor is prevented from affecting the signal detected by the air pressure sensor and causing calculation errors, so that the influence of fluctuation on the measurement resultof the air pressure sensor is filtered, and the purpose of replacing the filtering part by the average value according to the change trend is achieved.

Description

technical field [0001] The invention relates to the technical field of reciprocating compressor fault diagnosis, and more specifically, the utility relates to a reciprocating compressor indicator diagram operating device and a control method. Background technique [0002] The indicator diagram of a reciprocating compressor is a graph reflecting the gas pressure change in the cylinder of the compressor during a working cycle. The test of the indicator diagram is one of the basic methods to study the performance and working status of the compressor; the indicator diagram can be used to The calculated average is only the pressure, indicated power, actual pressure ratio and volume coefficient; at the same time, according to the shape of the indicator diagram, the leakage of the valve, piston ring, packing, etc., and the pressure loss during the intake and exhaust process can be analyzed and judged. ; heat exchange in the process of compression and expansion, etc.; so that the fa...

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Problems solved by technology

[0003] However, when the existing technology is actually used, the reciprocating compressor will vibrate when it is working, which will cause fluctuations in the results measured by the air pressure sensor, thereby affecting the shape of the indicator diagram, resulting in erroneous judgments

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