A Calculation Method for Isothermal Compressor Performance Test

Abstract

The invention provides a method for testing and calculating the performance of an isothermal compressor, including: step 1, collecting parameters of the isothermal compressor; step 2, preliminary determination of multiple variables in the calculation process: step 201, obtaining pressure and temperature parameters of the inlet and outlet of each level in the design state ; Step 202, calculate the multi-variables at all levels of the design state: Step 203, initially determine the multi-variables at all levels of the experimental state: make the multi-variables at all levels of the experimental state equal to the multi-variables at all levels of the design state; Step 3, preliminary calculation of test data: Step 4, Data comparison and correlation coefficient selection iterative calculation: compare the whole machine power N meter calculated in step 3 with the measured power N, calculate the relevant power adjustment coefficient, and recalculate the multi-variables at all levels: re-determine the multi-variables at all levels in the test state : Make the multi-variables at all levels of the test state equal to the multi-variables at all levels obtained by recalculation; iterate the calculations of steps 3 and 4; step 5, calculate the relevant characteristic parameters.

Description

technical field [0001] The invention belongs to the field of compressors, and relates to an isothermal compressor, in particular to a performance test and calculation method of an isothermal compressor. Background technique [0002] Isothermal compressors with built-in coolers are widely used in industrial fields such as air separation. The built-in cooler makes the high-temperature gas compressed in each stage cool down nearby in time before entering the next stage for compression again. The overall energy consumption of the unit is lower than other types of compressor units of the same scale, and the overall floor area is also smaller than other types of compressor units of the same scale. However, the application of the built-in cooler, especially in order to ensure that the high-temperature gas can be fully cooled, adopts a unique gas distributor for air distribution, so that the high-temperature air flow at the front stage outlet of the built-in cooler and the low-temp...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a method for testing and calculating the performance of an isothermal compressor, aiming at the testing difficulties brought about by the structure characteristics of an isothermal compressor, and solving the problems in the prior art for the structure of an isothermal compressor. characteristics, it is difficult to give accurate quantitative test results technical problems

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