KR20120026144A - Dimple device of flow passage for turbine - Google Patents

Dimple device of flow passage for turbine Download PDF

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Publication number
KR20120026144A
KR20120026144A KR1020100088166A KR20100088166A KR20120026144A KR 20120026144 A KR20120026144 A KR 20120026144A KR 1020100088166 A KR1020100088166 A KR 1020100088166A KR 20100088166 A KR20100088166 A KR 20100088166A KR 20120026144 A KR20120026144 A KR 20120026144A
Authority
KR
South Korea
Prior art keywords
dimple
fluid path
turbine
fluid
shape
Prior art date
Application number
KR1020100088166A
Other languages
Korean (ko)
Inventor
김성만
Original Assignee
김성만
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 김성만 filed Critical 김성만
Priority to KR1020100088166A priority Critical patent/KR20120026144A/en
Publication of KR20120026144A publication Critical patent/KR20120026144A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/002—Cleaning of turbomachines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE: A fluid path of a turbine system using dimple is provided to enhance the efficiency of steam re-heated and used, prevent solid particles from falling from a dimple shape in general operation and easily remove foreign materials when washing. CONSTITUTION: A fluid path of a turbine system using dimple comprises a plurality of dimple shapes. Grooves are formed on each dimple in the same direction in which fluid flows. The resistance of the fluid decreases passing through the grooves, heat transfer is enhanced and heat loss is prevented. The shape of the dimple prevents solid particles from entering a turbine back in a solid form when a temperature changes. The dimple is formed to be bent in the same direction to the fluid path to enhance the washing efficiency of the fluid path. The dimple can be arranged to become narrower from the start point to the end point of the fluid path.

Description

Simple device of flow passage for turbine

The present invention attaches solid particles contained in steam through surface shaping such as dimples or grooves in a passage through which steam flows for operation of the turbine in a power generation system, thereby reducing damage to the turbine and improving heat transfer performance.

In the conventional dimple application, a dimple shape is applied to a surface in order to increase the heat exchange area in a form that is mainly applied to a bearing as a method for increasing lubrication performance by fixing an oil film or in other cases. Although there are differences in the shape and depth of the dimples, most of them are limited in application.

In the related art, corrosion caused in turbine components has occurred due to foreign matter contained in steam introduced into a turbine. The solid particles carried by the steam are mainly generated in the boiler's high-temperature piping and fall off when the temperature change is severe.

Path Surface) Increases roughness, changes in nozzle and vane shape, resulting in energy redistribution at the stage. The present invention is to solve the above problems.

A plurality of dimples are formed in the flow path in which the fluid flows, and a shape called a dimple or groove serves to reduce corrosion or breakage of the turbine by attaching a plurality of solid particles flowing in the flow direction of the fluid.

In addition, through the dimple, the surface area of the flow path can be widened to prevent heat loss, to enhance heat transfer, and to increase the efficiency of steam used for reheating.

The morphological feature prevents solid particles from falling out of the dimple shape in normal operation and allows easy removal of deposits during cleaning.

The present invention can reduce corrosion or breakage of the system with heat loss prevention.

1 is a view related to the arrangement of the dimples.

It is possible to arrange in such a manner that the gap of the dimple is narrowed in the direction in which the flow path ends in the direction of the flow path as shown in FIG. 1.

The shape of the arrangement can be changed. Also, the shape of each dimple currently represented can be changed on the plane or according to the application system;

The present figure is in the form of a conventional dimple.

Its shape makes it possible to increase the adhesion of solid particles and to reduce the resistance to fluid flow.

Claims (2)

A plurality of dimple shapes are arranged in the flow path through which the fluid flows.
Each of the dimples has grooves in the flow direction of the fluid, thereby reducing the resistance of the fluid and at the same time preventing heat loss with enhanced heat transfer. The shape of the dimples prevents the solid particles from adhering to the turbine as a solid form at the time of temperature change and at the same time increases the cleaning efficiency of the flow path through the dimples curved in the flow direction.
KR1020100088166A 2010-09-09 2010-09-09 Dimple device of flow passage for turbine KR20120026144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100088166A KR20120026144A (en) 2010-09-09 2010-09-09 Dimple device of flow passage for turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100088166A KR20120026144A (en) 2010-09-09 2010-09-09 Dimple device of flow passage for turbine

Publications (1)

Publication Number Publication Date
KR20120026144A true KR20120026144A (en) 2012-03-19

Family

ID=46132104

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100088166A KR20120026144A (en) 2010-09-09 2010-09-09 Dimple device of flow passage for turbine

Country Status (1)

Country Link
KR (1) KR20120026144A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2679793A1 (en) * 2012-06-28 2014-01-01 Alstom Technology Ltd Flow channel for a gaseous medium and corresponding exhaust-gas liner of a gas turbine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2679793A1 (en) * 2012-06-28 2014-01-01 Alstom Technology Ltd Flow channel for a gaseous medium and corresponding exhaust-gas liner of a gas turbine

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E902 Notification of reason for refusal
E601 Decision to refuse application