Pressure guiding module mounted in flute-shaped pipe

Abstract

A pressure guiding module mounted in a flute-shaped pipe comprises a base, a pipe sleeve, a coating nut and a hollow straight joint, wherein the base has a joint surface which is matched with the outer surface of the flute-shaped pipe, is provided with a second through hole, and is fixed on the flute-shaped pipe in a non-welding manner, so that the joint surface is bonded with the outer surface of the flute-shaped pipe in an air sealing manner and the second through hole is aligned to a first through hole; one end of the pipe sleeve is fixedly connected with a pressure guiding pipe which is connected to a pressure sensor, and the other end of the pipe sleeve is provided with a joint part which is outwards projected in the radial direction; the side wall of the coating nut is provided with an internal thread at a first end, and a second end of the coating nut is provided with an end wall, inwards extending in the radial direction, for sleeving the joint part of the pipe sleeve in an accommodating cavity; the accommodating cavity is formed by side walls and the end wall; and the hollow straight joint is provided with a first end which is in threaded connection with the second through hole of the base, and a second end which is in threaded connection with the internal thread of the coating nut. As a result, the pressure guiding pipe guides hot gas pressure at the tail end of the flute-shaped pipe to the pressure sensor to measure the hot gas pressure so as to verify pressure drop and flow distribution of the flute-shaped pipe.

Description

technical field [0001] The invention relates to a pressure introduction assembly installed on a flute tube. Background technique [0002] The wing hot air anti-icing system of civil aircraft provides safety guarantee for the aircraft to fly under icing weather conditions, and provides sufficient heat source for the wing, which is the key component of the aircraft to generate lift, to avoid icing on the surface of the wing and affecting the aerodynamic shape of the wing . [0003] After the design of the wing hot gas anti-icing system is completed, a series of calculation analysis, test flight, etc. are required to verify whether the system design meets the design requirements and airworthiness provisions. As an important verification method, flight test has been paid more and more attention. [0004] According to the performance verification of the wing hot gas anti-icing system and the compliance verification requirements of CCAR25. Design requirements and clause complia...

AI Technical Summary

Problems solved by technology

[0007] However, because the diameter of the flute tube varies greatly, the smallest diameter is about 24-25mm, and the diameter of the flute tube is relatively thin, about 1mm thick, and the diameter of the pressure induction tube is generally 7-8mm. In this way, when the pressure induction tube is welded to the flute tube, the problem of weld penetration is more likely to occur, and the probability of defective products is higher

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