TURBINE TEST METHOD AND TEST BENCH FOR ITS IMPLEMENTATION Russian patent published in 2015 - IPC G01M15/14 

FIELD: machine building.

SUBSTANCE: tests of steam and gas turbines of power and propulsion systems at independent test benches is an effective method for advanced testing of new technical solutions which allows for the reduction of the scope, cost and total time needed for new power installation development. The method is implemented with the help of a test bench comprising the turbine being tested with a working medium supply system, a hydraulic brake with working fluid supplying and withdrawing pipelines including, according to the invention, a tank with a system for filling by the working fluid, suction and discharge mains of a fluid loading pump with a system of sensors built-in in them with the sensors being calibrated as per the capacity parameters of the turbine being tested. A throttling device and/or a set of throttling devices is installed in the discharge mains, the fluid loading pump with its shaft being kinematically coupled with the tested turbine is used as the hydraulic brake. The working fluid is supplied to the fluid loading pump in the closed circuit and can be partially withdrawn and supplied to the circuit during the tests.

EFFECT: no necessity to withdraw the working fluid used-up in the hydraulic brake during tests, decreased routine maintenance interval for hydraulic brake, provision for the possibility to change the characteristics of the tested turbine in the wide range during testing.

6 cl, 1 dwg