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SU1688142A1 - Method of diagnosis of turbomachine rotor surface - Google Patents

Method of diagnosis of turbomachine rotor surface Download PDF

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Publication number
SU1688142A1
SU1688142A1 SU894664355A SU4664355A SU1688142A1 SU 1688142 A1 SU1688142 A1 SU 1688142A1 SU 894664355 A SU894664355 A SU 894664355A SU 4664355 A SU4664355 A SU 4664355A SU 1688142 A1 SU1688142 A1 SU 1688142A1
Authority
SU
USSR - Soviet Union
Prior art keywords
rotor
pressure
closed cavity
radial clearance
turbomachine
Prior art date
Application number
SU894664355A
Other languages
Russian (ru)
Inventor
Минхафиз Шахеевич Гилязов
Фарид Максимович Валиев
Любовь Петровна Домрачева
Константин Васильевич Каховский
Александр Евгеньевич Сергеев
Original Assignee
Казанский Авиационный Институт Им.А.Н.Туполева
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Казанский Авиационный Институт Им.А.Н.Туполева filed Critical Казанский Авиационный Институт Им.А.Н.Туполева
Priority to SU894664355A priority Critical patent/SU1688142A1/en
Application granted granted Critical
Publication of SU1688142A1 publication Critical patent/SU1688142A1/en

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Abstract

Изобретение относитс  к способам диагностики состо ни  поверхностей ротора турбомашин, в частности бандажированных рабочих лопаток, в аэродромных услови х и позвол ет повысить надежность определени  дефектов. Способ заключаетс  в том, что перпендикул рно провер емой поверхности рабочей лопатки 2 направл ют кольцевую струю с образованием внутри нее замкнутой полости 9 с посто нным давлением в ней, которое отбирают и регистрируют измерительным прибором 8. Затем перемещают замкнутую полость 9 вдоль поверхности и по изменению давлени  на измерительном приборе 8 суд т о наличии деформации на провер емой поверхности и величине радиального зазора между ротором и статором турбомашины. 2 ил.The invention relates to methods for diagnosing the state of the surfaces of a rotor of turbomachines, in particular, banded working blades, in aerodrome conditions and allows to increase the reliability of the determination of defects. The method consists in that the perpendicularly test surface of the working blade 2 directs the annular jet with the formation inside it of a closed cavity 9 with a constant pressure in it, which is taken and recorded by the measuring device 8. Then move the closed cavity 9 along the surface and along the change The pressure on the measuring device 8 determines the presence of deformation on the surface being tested and the radial clearance between the rotor and the turbomachine stator. 2 Il.

Description

Фиг. 2FIG. 2

Claims (1)

Формула изобретенияClaim Способ диагностики состояния поверхности ротора турбомашины путем измерения давления в канале радиального зазора между ротором и статором, отличающийся тем. что, с целью повышения надежности определения дефектов и упрощения, в канал радиального зазора перпендикулярно проверяемой поверхности направляют кольцевую струю под давлением, превышающем давление в канале радиального зазора, с образованием замкнутой полости, ограниченной сверху корпусом турбомашины, снизу — поверхностью ротора, а с боков — кольцевой струей, с постоянным давлением в ней, которое отбирают и регистрируют, перемещают замкнутую полость вдоль поверхности ротора и по изменению зарегистрированного давления судят о наличии дефекта в проверяемой поверхности.A method for diagnosing the surface condition of the rotor of a turbomachine by measuring the pressure in the channel of the radial clearance between the rotor and the stator, characterized in that that, in order to increase the reliability of defect determination and simplification, an annular jet is directed under a pressure exceeding the pressure in the radial clearance channel into the radial clearance channel of the perpendicularly checked surface to form a closed cavity bounded above by the turbomachine body, from below by the rotor surface, and from the sides - annular jet, with a constant pressure in it, which is selected and recorded, move the closed cavity along the surface of the rotor and the presence of a defect in the inspected surface. Г/ГY / y Фиг 2Fig 2
SU894664355A 1989-03-21 1989-03-21 Method of diagnosis of turbomachine rotor surface SU1688142A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU894664355A SU1688142A1 (en) 1989-03-21 1989-03-21 Method of diagnosis of turbomachine rotor surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU894664355A SU1688142A1 (en) 1989-03-21 1989-03-21 Method of diagnosis of turbomachine rotor surface

Publications (1)

Publication Number Publication Date
SU1688142A1 true SU1688142A1 (en) 1991-10-30

Family

ID=21435054

Family Applications (1)

Application Number Title Priority Date Filing Date
SU894664355A SU1688142A1 (en) 1989-03-21 1989-03-21 Method of diagnosis of turbomachine rotor surface

Country Status (1)

Country Link
SU (1) SU1688142A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 282340, кл. F 01 D 5/20, 1970. *

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