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RU1469964C - Stator of turbine-driven machine - Google Patents

Stator of turbine-driven machine Download PDF

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Publication number
RU1469964C
RU1469964C SU4243544A RU1469964C RU 1469964 C RU1469964 C RU 1469964C SU 4243544 A SU4243544 A SU 4243544A RU 1469964 C RU1469964 C RU 1469964C
Authority
RU
Russia
Prior art keywords
spacer
housing
stator
casing
turbine
Prior art date
Application number
Other languages
Russian (ru)
Inventor
А.-А.Ш. Гельмедов
В.А. Грехнев
В.М. Новиков
Г.Ф. Оноприенко
Original Assignee
Моторостроительное конструкторское бюро
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 Моторостроительное конструкторское бюро filed Critical Моторостроительное конструкторское бюро
Priority to SU4243544 priority Critical patent/RU1469964C/en
Application granted granted Critical
Publication of RU1469964C publication Critical patent/RU1469964C/en

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Abstract

FIELD: turbine-driven machines. SUBSTANCE: stator comprises shaped spacer 2 and casing 1, for example of centrifugal compressor, made of heterogeneous materials. Spacer 2 should suit the operation requirements of the turbine-driven machine and ensure its working-in to blades of impeller 3 without galling. Installed between spacer 2 and casing 1 is ring aligned relative to spacer on radial pins 5. The linear expansion coefficient of ring material is selected to be close, or equal to, that of casing 1. Ring 4 is aligned on casing 1 by band 6. EFFECT: facilitated manufacture and installation of stator. 2 dwg

Description

Изобретение относится к области машиностроения. The invention relates to the field of engineering.

Целью изобретения является повышение технологичности при изготовления и монтаже. The aim of the invention is to improve manufacturability in the manufacture and installation.

На фиг.1 изображен статор турбомашины, осевой разрез; на фиг.2 - вид по стрелке А на фиг.1
Статор турбомашины содержит корпус 1 и профильную проставку 2, выполненные из разнородных материалов. Профильная проставка 2 установлена над рабочим колесом 3, например, центробежного компрессора. Материал проставки 2 выбирается из условий эксплуатации турбомашины и должен обеспечивать приработку проставки к рабочим лопаткам колеса 3, исключая наволакивание. Между проставкой 2 и корпусом 1 установлено кольцо 4, центрируемое относительно проставки на радиальных штифтах 5. Материал кольца 4 выбран с коэффициентом линейного расширения, близким или равным коэффициенту линейного расширения корпуса 1. Кольцо 4 установлено на корпусе 1 по центрирующему пояску 6 и прикреплено к корпусу болтами 7.Figure 1 shows the stator of a turbomachine, axial section; figure 2 is a view along arrow a in figure 1
The stator of the turbomachine comprises a housing 1 and a profile spacer 2 made of dissimilar materials. Profile spacer 2 is installed above the impeller 3, for example, a centrifugal compressor. The material of the spacer 2 is selected from the operating conditions of the turbomachine and should provide the running-in of the spacer to the working blades of the wheel 3, excluding enveloping. Between the spacer 2 and the housing 1, a ring 4 is installed, centered relative to the spacer on the radial pins 5. The material of the ring 4 is selected with a linear expansion coefficient equal to or equal to the linear expansion coefficient of the housing 1. Ring 4 is mounted on the housing 1 along the centering belt 6 and attached to the housing bolted 7.

При работе турбомашины с увеличением температуры воздуха происходит тепловое расширение деталей статора. При этом кольцо 4 будет расширяться вместе с корпусом 1, так как материалы и температуры этих элементов статора будут близки друг другу, а профильная проставка 2 будет расширяться по штифтам 5. Профильная проставка 2 может быть легко смонтирована или заменена на другую, так как посадка ее в корпус по центрирующему пояску 6 более технологична, чем посадка в корпус и монтаж-демонтаж по штифтам 5. During operation of a turbomachine, with an increase in air temperature, thermal expansion of the stator parts occurs. In this case, the ring 4 will expand together with the housing 1, since the materials and temperatures of these stator elements will be close to each other, and the profile spacer 2 will expand along the pins 5. The profile spacer 2 can be easily mounted or replaced with another, since it fits in the housing along the centering belt 6 is more technologically advanced than landing in the housing and mounting and dismounting by pins 5.

Claims (1)

СТАТОР ТУРБОМАШИНЫ, содержащий выполненные из разнородных материалов корпус и профильную проставку, установленную над рабочим колесом и центрируемую относительно корпуса на радиальных штифтах, отличающийся тем, что, с целью повышения технологичности при изготовлении и монтаже, он снабжен кольцом, установленным между корпусом и проставкой и выполненным из материала, имеющего коэффициент линейного расширения, близкий или равный коэффициенту материала корпуса. TURBO MACHINE STATOR, comprising a housing made of dissimilar materials and a profile spacer mounted above the impeller and centered relative to the housing on radial pins, characterized in that, in order to improve manufacturability during manufacture and installation, it is equipped with a ring mounted between the housing and the spacer and made from a material having a linear expansion coefficient close to or equal to the coefficient of the housing material.
SU4243544 1987-05-11 1987-05-11 Stator of turbine-driven machine RU1469964C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4243544 RU1469964C (en) 1987-05-11 1987-05-11 Stator of turbine-driven machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4243544 RU1469964C (en) 1987-05-11 1987-05-11 Stator of turbine-driven machine

Publications (1)

Publication Number Publication Date
RU1469964C true RU1469964C (en) 1994-09-30

Family

ID=30440679

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4243544 RU1469964C (en) 1987-05-11 1987-05-11 Stator of turbine-driven machine

Country Status (1)

Country Link
RU (1) RU1469964C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2176736C1 (en) * 2000-05-10 2001-12-10 Общество с ограниченной ответственностью "КОМТЕК-Энергосервис" Stator part of first stages of medium pressure cylinder of steam turbine with reheat
RU2214514C2 (en) * 1997-12-17 2003-10-20 Прэтт энд Уитни Кэнэдэ Корп. Cylindrical support for gas-turbine engine stator unit and stator unit of gas-turbine engine
RU2276737C2 (en) * 2000-10-19 2006-05-20 Снекма Мотер Device to connected turbine stator ring with support post
RU2282729C2 (en) * 2000-11-30 2006-08-27 Снекма Мотер Stator inner shell

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент ФРГ N 260776, кл. F 01D 9/00, опублик.1982. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2214514C2 (en) * 1997-12-17 2003-10-20 Прэтт энд Уитни Кэнэдэ Корп. Cylindrical support for gas-turbine engine stator unit and stator unit of gas-turbine engine
RU2176736C1 (en) * 2000-05-10 2001-12-10 Общество с ограниченной ответственностью "КОМТЕК-Энергосервис" Stator part of first stages of medium pressure cylinder of steam turbine with reheat
RU2276737C2 (en) * 2000-10-19 2006-05-20 Снекма Мотер Device to connected turbine stator ring with support post
RU2282729C2 (en) * 2000-11-30 2006-08-27 Снекма Мотер Stator inner shell

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