Aero-engine core engine room fire full-scale test device

A technology for engine compartments and engines, applied in measuring devices, testing of machines/structural components, instruments, etc., can solve the problems that cannot truly reflect the fire and fire spread of the core engine room, and establish geometric features, etc.

Pending Publication Date: 2019-09-13
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the core nacelle test model in the existing test bench does not completely establish all the geometric features according to the actual nacelle. Instead, it analyzes the risk of fire and fire spread in the nacelle, and summarizes the characteristic structure that affects the fire development in the nacelle. Piping and accessories are modeled as standard features
Although this simplifies the test structure and improves the repeatability of the test results, there is a large gap with the actual engine room and cannot truly reflect the fire and fire spread of the core engine room

Method used

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  • Aero-engine core engine room fire full-scale test device
  • Aero-engine core engine room fire full-scale test device
  • Aero-engine core engine room fire full-scale test device

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Embodiment Construction

[0020] The solution of the present invention is to adopt a modular design method to divide the entire core engine room full-scale test bed into seven modules, which are test container and safety protection module, 1:1 engine room geometric model and support platform module, and inlet ventilation Control module, wall heating module, fire source module, ignition module and data acquisition module.

[0021] Preferably, the space size of the test container is a steel structure container 12m long*4m wide*5m high. Considering the safety of the test process, a fire hydrant was installed outside the test container, and CO2 automatic fire extinguishing equipment and portable fire extinguishers were installed in the container for emergency treatment of test emergencies to ensure the safety of test personnel.

[0022] Preferably, the geometric model of the test nacelle is constructed with reference to a certain type of engine 1:1. Due to the fact that there are very complicated piping, wirin...

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Abstract

The invention belongs to the field of aero-engine fireproof technologies and constructs an aero-engine core engine room fire full-scale test device. Through the device, typical working conditions of an actual engine room can be simulated, a fire and fire spreading in a core engine room can be truthfully reflected, and basic data can be provided for fireproof design and simulation of the core engine room of an aero-engine.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of aero-engine fire protection, and constructs a full-scale test device for aero-engine core cabin fire, which can simulate the typical working conditions of the actual cabin, more truly reflect the fire and fire spread in the core cabin, and is the core cabin fire prevention of aero-engine Design and simulation provide basic data. [0003] Background technique: [0004] In the various fire zones of civil aircraft, there are complicated pipelines in the core cabin of the aircraft engine, and the temperature of the entire cabin is relatively high, which is one of the important dangerous parts that cause the aircraft to catch fire. Its fire protection is critical to the safe operation of the aircraft. important. The Federal Aviation Administration (FAA) and the Civil Aviation Administration of China (CAAC) both put forward relevant airworthiness requirements (FAR33.17 and CAAR33.17) for the fire protection d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
CPCG01M99/002
Inventor 丛北华李松阳丁芳
Owner TONGJI UNIV
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