Aviation fuel sampler and sampling method

Abstract

The invention relates to the technical field of aircraft detection, in particular to an aviation fuel oil sampler and a sampling method. The aviation fuel oil sampler comprises an oil guide unit and asampling main body, and the oil guide unit is detachably connected with the sampling main body; the sampling main body comprises a shell, and a door opening inner column is arranged in a shell cavityof the shell; and a rotary adjusting mechanism is arranged on the shell, is matched with the door opening inner column and is used for jacking the one-way valve in the airplane body oil drain port open. According to the technical scheme, the opening opportunity of the one-way valve can be freely controlled, namely, the one-way valve in the oil drain port of the aircraft body can be opened after the sampler is installed, it is guaranteed that fuel oil is controlled to flow into the sampler after the sampler and the oil drain port of the aircraft body are completely sealed, fuel oil leakage iseffectively prevented, fuel oil cost is saved, and fuel oil pollution damage is eradicated. In addition, the vehicle-mounted finished product is jacked open through linear ascending of the door opening inner column, and the vehicle-mounted finished product is effectively protected.

Description

technical field [0001] The invention relates to the technical field of aircraft detection, in particular to an aviation fuel sampler and a sampling method. Background technique [0002] In order to ensure the safety of the aircraft and passengers, during the assembly process of the aircraft in the aviation field, before the aircraft is put into use and before the aircraft takes off, the staff will strictly test the various functional parameters of the aircraft, including sampling and testing of aviation fuel. The degree of pollution and other factors to judge whether the oil supply system of the whole machine is intact and whether it can work normally. Impurities in aviation fuel will not only cause corrosion of the metal parts of the system, but also pollute the atmosphere, and are easily oxidized and condensed into colloids and sediments in the fuel, causing blockage of the combustion system, etc., which will affect the normal flight of the aircraft in the air. has a very...

AI Technical Summary

Problems solved by technology

[0004] 1) During the process of the top tooth rotating and rising with the fuel sedimentation pipe, it is constantly grinding with the on-board finished product (the one-way valve in the oil discharge port of the aircraft body). The surface of the valve) is damaged, and it is easy to generate additional impurities;

[0005] 2) During the rotation and rising process of the fuel settling pipe (that is, before it is completely installed in place), the fuel settling pipe is not completely sealed with the fuel drain port of the aircraft body, and the fuel is likely to flow to the outside of the fuel settling pipe along the thread, and along the outer wall of the fuel settling pipe. If the fuel flowing down along the outer wall of the fuel settling pipe flows into the sampling sample, the fuel may be stained with other impurities on the outer wall of the fuel settling pipe, resulting in unreliable sampling results and further affecting the test results; When the fuel settling pipe is used, the fuel on the outer wall of the fuel settling pipe will bring unnecessary trouble to the staff;

[0006] 3) The fuel settling pipe is used to sample aviation fuel, and the flow direction and flow of the fuel cannot be controlled. At the same time, due to the inherent height of the aircraft, the fuel flowing out of the fuel settling pipe splashes around during the use of the existing fuel settling pipe, resulting in waste of cost;

[0007] 4) Leaked fuel oil (including fuel oil leaked from the thread during installation, fuel splashed after installation, etc.) is likely to cause external environmental pollution, and it is easy to enter the staff's body through breathing, skin absorption, etc., and damage the nervous system of the staff. and lung damage

Images