SU744179A1 - Axial stepped labyrinth packing - Google Patents

Axial stepped labyrinth packing Download PDF

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Publication number
SU744179A1
SU744179A1 SU782620103A SU2620103A SU744179A1 SU 744179 A1 SU744179 A1 SU 744179A1 SU 782620103 A SU782620103 A SU 782620103A SU 2620103 A SU2620103 A SU 2620103A SU 744179 A1 SU744179 A1 SU 744179A1
Authority
SU
USSR - Soviet Union
Prior art keywords
shaft
seal
axial stepped
order
vortex formation
Prior art date
Application number
SU782620103A
Other languages
Russian (ru)
Inventor
Владимир Ильич Соломко
Original Assignee
За витель
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.)
Filing date
Publication date
Application filed by За витель filed Critical За витель
Priority to SU782620103A priority Critical patent/SU744179A1/en
Application granted granted Critical
Publication of SU744179A1 publication Critical patent/SU744179A1/en

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  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

под действием центробежных сил отбрасываетс  к периферии камер. Это приводит к интенсивному перемешиванию двухфазного потока, его дроблению и турбулизации, что снижает протечки пара через уплотнение. Количество охлаждающей воды должно составл ть от количества протекающего пара.under the action of centrifugal forces, it is thrown to the periphery of the chambers. This leads to intensive mixing of the two-phase flow, its fragmentation and turbulence, which reduces the leakage of steam through the seal. The amount of cooling water should be based on the amount of steam flowing.

.Наибольший эффект достигаетс  при следующих параметрах:The greatest effect is achieved with the following parameters:

Рассто ние канавок друг от друга /(2-3)Я, ширина канавок 6 (2-3)5, глубина канавок С(1-2)5, где 5 - зазор в уилотнении, Н - высота выступов.The distance of the grooves from each other is / (2-3) I, the width of the grooves 6 (2-3) 5, the depth of the grooves C (1-2) 5, where 5 is the clearance in elevation, H is the height of the projections.

Предложенное уплотнение позвол ет существеино уменьшить протечки среды (до 30%), что благопри тно сказываетс  на экономичности турбомашины.The proposed seal allows to reduce the leakage of the medium (up to 30%), which favorably affects the efficiency of the turbomachine.

Claims (2)

1. Осевое ступенчатое лабиринтное уплотнение , выполненное в виде иоследовательно установленных в корпусе кольцевых гребней, внутренние кромки которых поочередно с валом или выступом на валу образуют лабиринтные щели, отличающеес  тем, что, с целью уменьшени  протечки пара путем конденсации и вихреобразовани  паровой фазы, в камерах уплотнени  выполнены отверсти , дл  подачи питательной воды.1. An axial stepped labyrinth seal, made in the form of annular ridges successively installed in the housing, the inner edges of which alternate with the shaft or protrusion on the shaft form labyrinth slots, characterized in that in order to reduce steam leakage by condensation and vortex formation of the vapor phase, the chambers Seals are drilled to supply feed water. 2. Уплотнение по п. 1, отличающеес  тем, что, с целью интенсификации процессов вихреобразовани  внутри камеры, на боковых поверхност х выступов вала на одинаковом рассто нии друг от друга2. A seal according to claim 1, characterized in that, in order to intensify the vortex formation processes inside the chamber, on the lateral surfaces of the protrusions of the shaft at an equal distance from each other f (2-3)Я выполнены радиальные канавки щириной &(2-3)5 и глубиной С(1-2)5, где 5 - зазор в уплотнении, Я - высота выступов.f (2-3) I made radial grooves with a width of & (2-3) 5 and depth C (1-2) 5, where 5 is a gap in the seal, I is the height of the projections. Источники информации,Information sources, прин тые во внимание при экспертизеtaken into account in the examination 1. Курзои А. Г. Теори  судовых паровых и газовых турбин. Л., 1970, с. 202, рис. III, 27, г.1. Kurzoy A., G. Theory of ship steam and gas turbines. L., 1970, p. 202, fig. III, 27, 1 I I фиг. i1 I I FIG. i
SU782620103A 1978-05-30 1978-05-30 Axial stepped labyrinth packing SU744179A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782620103A SU744179A1 (en) 1978-05-30 1978-05-30 Axial stepped labyrinth packing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782620103A SU744179A1 (en) 1978-05-30 1978-05-30 Axial stepped labyrinth packing

Publications (1)

Publication Number Publication Date
SU744179A1 true SU744179A1 (en) 1980-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU782620103A SU744179A1 (en) 1978-05-30 1978-05-30 Axial stepped labyrinth packing

Country Status (1)

Country Link
SU (1) SU744179A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5192084A (en) * 1990-12-12 1993-03-09 Rolls-Royce Plc Brush seal arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5192084A (en) * 1990-12-12 1993-03-09 Rolls-Royce Plc Brush seal arrangement

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