Intake flow nozzle assembly and intake flow measuring device

Abstract

The invention relates to the technical field of gas turbine air inlet flow testing equipment, in particular to an air inlet flow nozzle assembly and an air inlet flow measuring device. The air inlet flow nozzle assembly comprises a plurality of nozzle flowmeters and a connecting base with a plurality of connecting through holes distributed in an array mode, and the nozzle flowmeters are arranged in the connecting through holes in a one-to-one correspondence mode. A preset number of nozzle flowmeters which are uniformly distributed relative to the connecting seat in the plurality of nozzle flowmeters can be simultaneously started, so that the measurement upper limit of the air inlet flow nozzle assembly reaches the preset air inlet flow. According to the air inlet flow nozzle assembly and the air inlet flow measuring device, the preset number of nozzle flowmeters are combined, so that the air inlet flow nozzle assembly and the air inlet flow measuring device can be suitable for air inlet flow measurement during tests of gas turbines of various models and power levels, and the flexibility is very high.

Description

Technical field [0001] The invention relates to the technical field of gas turbine intake flow measurement equipment, and in particular to an intake flow nozzle assembly and an intake flow measurement device. Background technique [0002] Accurate measurement of turbine intake air flow is essential for turbine performance calculation and compressor surge analysis. In the conventional turbine test bench, a double twisted-wire flow tube is connected to the intake duct for the measurement test of the intake flow. [0003] In the related art, since the measurement accuracy of the flow tube requires the intake Mach number, the excessive size of the flow tube will cause the intake Mach number to be inapplicable. Therefore, it is necessary to use a smaller size flow tube to measure the ground heavy turbine. However, the smaller size of the flow tube means that it can only measure the intake flow in a small range. When the required intake flow of the turbine to be tested exceeds the measu...

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Problems solved by technology

[0004] The first purpose of the present invention is to provide an intake flow nozzle assembly to solve the problem that the intake flow tube can only measure the intake flow in a small range in the prior art to a certain extent. Applicable to the turbine intake flow test of less models and power levels

[0005] The second object of the present invention is to provide an intake air flow measuring device to solve the problem of the intake air flow measuring device in the prior art because the intake air flow measuring device can only measure the intake air flow in a small range. It can only be applied to the air intake flow test of turbines with a small number of models and power levels

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