KR20160002298U - Leakage tester for blade shaft bearing - Google Patents

Leakage tester for blade shaft bearing Download PDF

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Publication number
KR20160002298U
KR20160002298U KR2020140009490U KR20140009490U KR20160002298U KR 20160002298 U KR20160002298 U KR 20160002298U KR 2020140009490 U KR2020140009490 U KR 2020140009490U KR 20140009490 U KR20140009490 U KR 20140009490U KR 20160002298 U KR20160002298 U KR 20160002298U
Authority
KR
South Korea
Prior art keywords
pressure
leakage
air hose
present
air
Prior art date
Application number
KR2020140009490U
Other languages
Korean (ko)
Inventor
김석호
조헌제
Original Assignee
한전케이피에스 주식회사
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 한전케이피에스 주식회사 filed Critical 한전케이피에스 주식회사
Priority to KR2020140009490U priority Critical patent/KR20160002298U/en
Publication of KR20160002298U publication Critical patent/KR20160002298U/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
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors

Abstract

The present invention relates to a thrust bearing leakage testing apparatus, A pressure gauge assembled in the thrust bearing and indicating the pressure measured by the leakage measuring unit as a scale; An air hose fitted with a quick coupler and connecting the leak measuring part and the pressure gauge; And a pressure regulating device for regulating the pressure applied to the air hose when the valve mounted on the air hose is opened, and the leakage measuring part measures the pressure leaked through the air hose.
According to the present invention, not only the risk of leakage can be minimized by using air as a power source, but also an accurate leak test design pressure can be easily secured by using an apparatus capable of automatically adjusting the air pressure.

Description

[0001] DESCRIPTION [0002] Leakage tester for blade shaft bearing [

The present invention relates to a thrust bearing leakage testing apparatus, and more particularly, to a device capable of rapidly and accurately performing a leakage test on a plurality of identical parts such as thrust bearings for axial fan blades.

There are 32 stages of two-stage axial fan blade shafts (Blade Shafts). Each Blade Shaft Bearing has five kinds of seals sealing function. If any part is leaked, it will cause fatal damage. Therefore, it is important to check the leakage of each seal.

Conventionally, an oil supply hose equipped with a valve in each bearing housing was manufactured. After the oil pressure was applied to the design dimension using an oil pump, the pressure was accurately recorded in a state where the valve was closed. The pressure drop was used to determine whether the equipment was sound.

In addition, since electric pump and needle valve were used, it was difficult to supply accurate design pressure to each bearing and it was difficult to maintain it. It is not only cumbersome but also requires a lot of work time and input manpower. In addition, it is difficult to perform accurate pressure test because of the complicated structure of equipment and a lot of connecting devices, which may cause leakage.

Korean Patent Laid-Open Publication No. 10-2013-0014574 (entitled: Highly responsive fluid pen coupling device)

It is an object of the present invention to provide a thrust bearing leakage tester capable of minimizing the risk of leakage by using air as a power source.

It is also an object of the present invention to provide a thrust bearing leakage tester capable of easily ensuring an accurate leakage test design pressure by using an apparatus capable of automatically adjusting the air pressure.

The thrust bearing leakage tester according to an embodiment of the present invention includes: a leakage measurement unit; A pressure gauge assembled in the thrust bearing and indicating the pressure measured by the leakage measuring unit as a scale; An air hose fitted with a quick coupler and connecting the leak measuring part and the pressure gauge; And a pressure regulating device for regulating the pressure applied to the air hose when the valve mounted on the air hose is opened, and the leakage measuring part measures the pressure leaked through the air hose.

Here, the inlet side of the leak measuring part is connected to the pressure gauge through an air hose.

In addition, the quick coupler has built-in backlash.

The features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Prior to this, terms and words used in the present specification and utility model registration claims should not be construed in a conventional and dictionary sense, and the inventor should properly interpret the concept of the term in order to explain its own design in the best way It must be construed as a meaning and a concept consistent with the technical idea of the present invention based on the principle that it can be defined.

According to the present invention, the risk of leakage can be minimized by using air as a power source.

Also, according to the present invention, an accurate leak test design pressure can be easily secured by using an apparatus capable of automatically regulating the air pressure.

1 is a perspective view of a thrust bearing leakage testing apparatus according to an embodiment of the present invention.
2 is a perspective view of a thrust bearing according to an embodiment of the present invention, in which a pressure gauge is assembled.

The objectives, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments, which are to be taken in conjunction with the accompanying drawings. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a thrust bearing leakage testing apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view of a pressure gauge assembled to a thrust bearing according to an embodiment of the present invention. 1, the thrust bearing leakage testing apparatus includes a leakage measuring unit 100, a pressure gauge 200, an air hose 300, and a pressure regulating device 400.

The leakage measuring unit 100 measures the pressure leaked through the air hose 300.

The pressure gauge 200 is assembled to the thrust bearing 10 in a state where the oil chamber is filled with oil, and the pressure measured by the leakage measuring unit 100 is indicated by a scale. And the inlet side of the leak measuring unit 100 is connected to the pressure gauge 200 through the air hose 300. Since the inlet of the pressure gauge 200 is a check valve type coupler, it is possible to remove the hose without closing the valve, thereby preventing the pressure fluctuation and also making the worker's work convenient.

The air hose 300 is equipped with a quick coupler and connects the leakage measuring unit 100 and the pressure gauge 200. In addition, the quick coupler has built-in backlash. The backflow is a valve that prevents backflow of a fluid flowing in a certain direction in a steam or hydraulic machine. If the quick coupler has a backflow, it is possible to perform a leak test more quickly at a plurality of test points. In one embodiment of the present invention, since the conventional power source in which an electric pump is used is replaced with air, it is convenient for an operator because the weight is small when moving. Also, there are many parts connected to the electric pump in the past, It is difficult to carry out the accurate pressure test, but the pressure test can be accurately performed.

The pressure regulator 400 regulates the pressure applied to the air hose 300 when the valve mounted on the air hose 300 is opened. The valve connected to the air hose 300 may be opened and the pressure may be set using the pressure regulator 400. [ The pressure regulating device 400 according to an embodiment of the present invention breaks the conventional method using a needle valve and automatically adjusts the air pressure so that an accurate leakage test design pressure can be easily secured.

After pressing the quick coupler connected to the pressure gauge 200 after pressing the casing of the thrust bearing, the change of the pressure gauge 200 is checked to check whether air or water is leaked for a certain period of time. Regarding the determination of leakage, it is determined that there is no leakage if the scale of the pressure gauge 200 does not change, and it is determined that leakage occurs when the scale of the pressure gauge 200 is downward.

Since an electric pump and a needle valve are used in connection with the thrust bearing leakage test apparatus according to one embodiment of the present invention, it is difficult to supply and maintain an accurate design pressure to each bearing, Since different initial pressures were measured and recorded after a certain period of time, it was not only cumbersome but also required a lot of work time and input manpower. In addition, it is difficult to perform accurate pressure test because of the complicated structure of equipment and a large number of connecting devices, which may cause leakage.

However, in one embodiment of the present invention, it is possible to minimize the risk of leakage by using air as a power source, and to ensure accurate leak test design pressure by using an apparatus capable of automatically controlling the air pressure.

Although the present invention has been described in detail with reference to specific embodiments thereof, it is to be understood that the present invention is not limited to the above-described embodiments, but may be modified and changed by a person skilled in the art within the technical scope of the present invention It is obvious that the improvement is possible.

The scope of the present invention is defined by the appended claims, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced by the appended claims.

10: Thrust bearing
100:
200: Pressure gauge
300: Air hose
400: Pressure regulator

Claims (3)

A leakage measuring unit;
A pressure gauge assembled to the thrust bearing and indicating the pressure measured by the leakage measuring unit as a scale;
An air hose mounted with a quick coupler and connecting the leakage measuring unit and the pressure gauge; And
And a pressure adjusting device for adjusting a pressure applied to the air hose when the valve mounted on the air hose is opened, wherein the leakage measuring part measures a pressure leaked through the air hose Test equipment. The method according to claim 1,
Wherein an inlet side of the leakage measurement unit is connected to the pressure gauge through the air hose. The method according to claim 1,
Wherein the quick coupler has a built-in backlash.
KR2020140009490U 2014-12-23 2014-12-23 Leakage tester for blade shaft bearing KR20160002298U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020140009490U KR20160002298U (en) 2014-12-23 2014-12-23 Leakage tester for blade shaft bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020140009490U KR20160002298U (en) 2014-12-23 2014-12-23 Leakage tester for blade shaft bearing

Publications (1)

Publication Number Publication Date
KR20160002298U true KR20160002298U (en) 2016-07-04

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Application Number Title Priority Date Filing Date
KR2020140009490U KR20160002298U (en) 2014-12-23 2014-12-23 Leakage tester for blade shaft bearing

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KR (1) KR20160002298U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323827A (en) * 2018-11-13 2019-02-12 福建福清核电有限公司 A kind of thrust bearing jacking oil non-return valve bulge test device and method
CN110320031A (en) * 2019-06-19 2019-10-11 欧洛普智控(北京)科技发展有限公司 A method of judging that filmatic bearing is intake by flow detection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130014574A (en) 2010-04-28 2013-02-07 우수이 고쿠사이 산교 가부시키가이샤 High reaction type fluid fan coupling device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130014574A (en) 2010-04-28 2013-02-07 우수이 고쿠사이 산교 가부시키가이샤 High reaction type fluid fan coupling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323827A (en) * 2018-11-13 2019-02-12 福建福清核电有限公司 A kind of thrust bearing jacking oil non-return valve bulge test device and method
CN110320031A (en) * 2019-06-19 2019-10-11 欧洛普智控(北京)科技发展有限公司 A method of judging that filmatic bearing is intake by flow detection

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E601 Decision to refuse application