TEST BENCH FOR VANE COMPRESSORS AND METHOD FOR GAS-DYNAMIC TESTING OF VANE COMPRESSORS Russian patent published in 2022 - IPC G01M15/00 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering, namely to stands for testing compressors. Test stand for bladed compressors, containing the first pneumatic line (16), including a process compressor (8) with an adjustable drive (12), an air cooler (10) and an expander (13), a second pneumatic line (14), including the compressor under test (4), turbine (2), and cryogenic heat exchanger (6). In this case, the second pneumatic line (14) includes a line (17) for supplying nitrogen with a shut-off element (18) and a line (19) for removing nitrogen with a shut-off element (20), as well as at least one shut-off element (21), while the lines (17, 19) inlet and outlet and at least one shut-off element (21) are installed in such a way that when nitrogen is supplied from the inlet line (17) to the second pneumatic line (14), at least through the tested compressor (4) and then withdraw through the line (19) outlet. Also disclosed is a method for gas-dynamic testing of bladed compressors.

EFFECT: invention provides the exclusion of freezing in the pneumatic line, in particular, the exclusion of freezing of the pneumatic line when testing bladed compressors, and, as a result, obtaining more reliable characteristics.

9 cl, 1 dwg