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Fuel manifold thermal sealing test device

A fuel manifold, sealing test technology, used in fluid tightness testing, measuring devices, testing of machine/structural components, etc.

Active Publication Date: 2020-05-05
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because there is no test device in this area in China, it is urgent to establish a test device to meet the test requirements and prevent the occurrence of safety hazards.

Method used

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  • Fuel manifold thermal sealing test device
  • Fuel manifold thermal sealing test device
  • Fuel manifold thermal sealing test device

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The thermal sealing test device of the fuel oil pipe according to the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] The thermal sealability test device of the fuel main pipe includes a closed chamber for placing the fuel main pipe, and a test bench for installing the fuel main pipe in the chamber. An induction coil for heating the welding part of the nozzle of the fuel main pipe is installed in the airtight cavity, and the induction coil and the power supply of the induction coil are cooled by water; the airtight chamber is connected with two nitrogen pipelines, and an oxygen concentration sensor is arranged in the airtight chamber; The oil supply and oil receiving pipelines are connected for supplying and recovering fuel oil thereto. like image 3 As shown, the main structure of the test bench includes a first heat insulation board 1, the fuel main pipe 6 to be tested is placed above the first heat insulati...

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PUM

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Abstract

The invention discloses a thermal-state seal test device for fuel main pipes. The thermal-state seal test device comprises a closed cavity, an induction coil and pipelines. The induction coil is arranged in the closed cavity and is used for heating spray nozzles of the fuel main pipes, and the pipelines are used for supplying fuel for the fuel main pipes and collecting fuel from the fuel main pipes; the closed cavity is communicated with a nitrogen pipeline; a device capable of changing magnetic flux of the coil is arranged below the induction coil; the fuel collecting pipeline is positioned below the induction coil. The thermal-state seal test device has the advantages that test requirements can be met by the thermal-state seal test device, the thermal-state seal performance of welded locations of the spray nozzles of the fuel main pipes can be smoothly tested by the thermal-state seal test device, test procedures are controllable and safe, and seal tests on 12 spray nozzles can be particularly simultaneously observed at one step.

Description

technical field [0001] The invention relates to a weld seam tightness test of a fuel oil main pipe, especially a tightness test device in a hot state. Background technique [0002] like figure 1 As shown, a new type of fuel manifold is an integral welded structure, which is assembled and welded by a total of 235 parts such as the annular manifold and the nozzle assembly (nozzle swirler, nozzle with gas cover, swirler, auxiliary oil filter). There are many parts (about 220 argon arc welding seams and 148 brazing seams), and the 24 nozzles (1#~24#) formed by welding are double oil circuit double nozzle parallel centrifugal nozzles; the fuel main pipe is used as the engine Power source, its performance reliability is very important; and each nozzle on the fuel main pipe of this type of engine adopts welded structure (see figure 1 , figure 2 ), while the fuel manifold is in normal operation, the nozzle experiences high temperature, and the sealing reliability of the welding ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02G01M3/04
CPCG01M3/025G01M3/04
Inventor 戴奉林梅文军易胜
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD