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Aero-engine fuel oil heating test method and test device

A technology of aero-engine and test method, which is applied in the direction of engine test, measurement device, machine/structural component test, etc., can solve the problems of engine test state change, the failure of fuel heating test device to follow in time, etc., and achieve dynamic response time Short, meet performance requirements, the effect of transient control accuracy improvement

Active Publication Date: 2016-05-04
CHINA AVIATION POWER MACHINE INST
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Problems solved by technology

[0003] The invention provides an aero-engine fuel oil heating test method and test device to solve the technical problem that the existing fuel oil heating test device cannot follow the engine test state change in time to meet the heating test requirements

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  • Aero-engine fuel oil heating test method and test device
  • Aero-engine fuel oil heating test method and test device
  • Aero-engine fuel oil heating test method and test device

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Embodiment Construction

[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0038] A preferred embodiment of the present invention provides an aero-engine fuel heating test method, which is used for controlling the heating test of the fuel supplied to the external fuel system of the aero-engine, so as to meet the requirements of the aero-engine fuel heating test. In the existing PID heating test control, the outlet fuel temperature reaches the preset heating value by adjusting the working time of the heating unit. However, as the engine test state changes, the outlet fuel temperature changes greatly, resulting in dynamic heating control. Response time and transient control accuracy cannot meet the heating test requirements. In this embodiment, the fuel flow monitoring...

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Abstract

The invention discloses an aero-engine fuel oil heating test method and test device which are used for heating test control for external fuel oil systems of aero-engines. The fuel oil heating test method comprises following steps: a required preset temperature value of fuel oil after being heated is received, and an inlet fuel oil temperature value of the external fuel oil system at an inlet of a heating device is collected and received; fuel oil flow of an aero-engine is collected and received in real time; on the basis of the difference value between the inlet fuel oil temperature value and the preset temperature value, and the fuel oil flow, the heating power value of the heating device is calculated; and the output heating power of the heating device is regulated according to the obtained heating power value. The heating power value changes along with the fuel oil flow changes due to changes of aero-engine working condition so that the accuracy of transient control of heating control is increased, the dynamic response time is short, the stable state precision of temperature control is increased, and therefore, the performance requirement of aero-engine fuel oil heating test is satisfied.

Description

technical field [0001] The invention relates to the field of aero-engine ground tests, in particular to an aero-engine fuel heating test method and a test device. Background technique [0002] During the long-term test run of the aero-engine test bench, it is necessary to conduct a heating test on the engine fuel to meet the requirements for fuel temperature in the General Specifications for Aviation Turboprop and Turboshaft Engines. Existing heating device reference figure 1 , when the temperature T1 is set, the contactor controls the heating unit to heat up, and the output temperature value is measured by the sensor. When there is a difference between the set T1 and the outlet temperature T2, the working time of the heating unit is controlled by PID adjustment. Control the output temperature T2 so that the output temperature T2 reaches the set value T1. In the existing heating device, when the state of the engine test changes, the T2 temperature changes greatly, the tran...

Claims

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Application Information

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IPC IPC(8): G01M15/00
CPCG01M15/00
Inventor 蔡衍言洁奕李伟
Owner CHINA AVIATION POWER MACHINE INST
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