A reciprocating compressor indicator diagram operation device and control method

Abstract

The invention discloses a reciprocating compressor indicator diagram operating device and a control method, in particular to the technical field of reciprocating compressor fault diagnosis, including a detection unit, the connection end of the detection unit is connected with a filter module, and the filter module The output end of the deduplication module is connected with a deduplication module, the output end of the deduplication module is connected with a data processing module, and the connection ends of the data processing module are respectively connected with an oscilloscope and a comparative analysis module, and the connection ends of the comparative analysis module are bidirectionally connected There are databases. The present invention filters the frequency bands of similar signals detected by the air pressure sensor and the vibration sensor through the deduplication module, so as to avoid the impact of the vibration of the reciprocating compressor on the signal detected by the air pressure sensor, resulting in calculation errors, so that the impact of fluctuations on the air pressure sensor can be filtered out The purpose of measuring the impact of the results and replacing them with the average value in the filtering part according to the trend.

Description

technical field [0001] The invention relates to the technical field of reciprocating compressor fault diagnosis, and more specifically, the invention 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 ...

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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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