KR101752710B1 - Pipe test equipment of power plant - Google Patents

Pipe test equipment of power plant Download PDF

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Publication number
KR101752710B1
KR101752710B1 KR1020150143720A KR20150143720A KR101752710B1 KR 101752710 B1 KR101752710 B1 KR 101752710B1 KR 1020150143720 A KR1020150143720 A KR 1020150143720A KR 20150143720 A KR20150143720 A KR 20150143720A KR 101752710 B1 KR101752710 B1 KR 101752710B1
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KR
South Korea
Prior art keywords
pipe
flange
fixing
unit
flange unit
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KR1020150143720A
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Korean (ko)
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KR20170044269A (en
Inventor
최효상
홍승의
이재규
김성원
박진홍
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한국남부발전 주식회사
한국산기 주식회사
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Priority to KR1020150143720A priority Critical patent/KR101752710B1/en
Publication of KR20170044269A publication Critical patent/KR20170044269A/en
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    • 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
    • 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
    • G01M3/022—Test plugs for closing off the end of a pipe

Abstract

The present invention discloses a pipe inspection apparatus for a power generation facility. A pipe inspection apparatus for a power generation facility is provided with a first pipe fixture to which one end of a pipe is hermetically sealed, a second pipe fixture to which the other end of the pipe is sealed and a second pipe fixture is movably installed, And a fluid supply line connected to the first pipe fixture or the second pipe fixture to supply a high-pressure fluid.

Figure R1020150143720

Description

[0001] PIPE TEST EQUIPMENT OF POWER PLANT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pipe inspection apparatus for a power generation facility, and more particularly, to a pipe inspection apparatus for a power generation plant that enables easy inspection of a cross over pipe .

Generally, a combined-cycle power generation system uses a fuel such as natural gas or diesel to generate electricity by first rotating a gas turbine, passing exhaust gas heat from a gas turbine back to a boiler to produce steam, will be.

The steam turbine consists of a high and intermediate pressure turbine and a plurality of low pressure turbines. Various types of crossover pipes are used to transfer the steam from the high-pressure turbine to the low-pressure turbine. Respectively. At this time, the crossover pipe is connected to the high-pressure turbine and the low-pressure turbine through the elbow pipe, and leakage inspection is performed before installation.

However, the conventional crossover pipe for a power generation facility as described above is large and heavy, which makes it difficult to conduct leakage inspection.

Therefore, there is a need to improve this.

On the other hand, Korean Patent Registration No. 10-0875083 (registered on Dec. 12, 2008) discloses a gas pipe airtightness testing apparatus, and Korean Registered Utility Model No. 20-0468859 (registered on August 31, 2013) Quot; airtightness testing device of a bundle tube ".

It is an object of the present invention to provide a pipe inspecting apparatus for a power plant that can easily inspect cross over pipes having different lengths according to specifications of power generation facilities.

It is another object of the present invention to provide a pipe inspection apparatus for a power plant that can simplify the inspection work of a cross-over pipe.

In order to attain the above object, a pipe inspection apparatus of a power plant according to the present invention comprises: a first pipe fixture which is hermetically sealed by one end of a pipe; a second pipe fixture which is hermetically sealed by the other end of the pipe; A second pipe fixing table movably installed on the first pipe fixing table or the second pipe fixing table for moving the position of the second pipe fixing table according to the length of the pipe, And a fluid supply line for supplying the fluid.

The first pipe fixture includes a first frame, a first flange unit provided on the first frame and vertically coupled to the pipe, and a second flange unit provided on the first flange unit, And a first temporary storage unit for temporarily storing the data.

The first flange unit may include: a first ball member installed on the first frame so that an upper end thereof is inserted into the pipe; and a second ball member provided on the first ball member to mount the first fixing unit, And a first flange coupled to the flange.

The first fixing unit may include a first guide shaft provided in the first flange unit and inserted into the pipe, and a second guide shaft provided in the first flange unit to be inserted into the pipe, And a second fixing member for fixing the first fixing member.

The second pipe fixture includes a second frame horizontally movably mounted on the position adjustment support, a second flange unit rotatably provided on the second frame and coupled to the pipe horizontally, And a second fixing unit provided on the second flange unit and fixing the pipe to the second flange unit.

The second flange unit may include a second ball member rotatably coupled to the second frame so as to be in intimate contact with the pipe when the pipe and the second flange unit are coupled through bolts and nuts, And a second flange provided on the second ball member to be coupled to the flange of the pipe so that the second flange is installed.

The second fixing unit may include a second guide shaft provided in the second flange unit and inserted into the pipe, and a second guide shaft provided in the second flange unit to be inserted into the pipe, wherein the pipe is in close contact with the second flange unit And a second fixing member for fixing the second fixing member.

The position adjusting support may include a base for movably mounting the second pipe fixture, a driving member provided on the base for connecting the second pipe fixture and reciprocating the second pipe fixture, And a guide member provided on the base for movably mounting the second pipe fixture.

The position adjusting support may further include a height adjusting unit for adjusting a height of the base.

As described above, since the position of the second pipe fixture is adjusted, unlike the prior art, the pipe inspecting device of the power plant according to the present invention can easily mount and check the crossover pipes having different lengths It has the effect of being able to.

In addition, according to the present invention, it is possible to easily connect the first pipe fixing table and the second pipe fixing table with the crossover pipe, thereby simplifying the pipe inspection work.

In addition, according to the present invention, since the crossover pipe seated on the first pipe fixing table and the second pipe fixing table is fixed through the first fixing portion and the second fixing portion, it is possible to prevent a stable accident and to use heavy equipment such as a crane Can be reduced.

1 is a view showing a pipe inspection apparatus of a power generation facility according to an embodiment of the present invention.
2 is a side view of Fig.
3 is an enlarged view of a first pipe fixing member according to an embodiment of the present invention.
4 is an enlarged view illustrating a second pipe fixing member and a position adjusting support according to an embodiment of the present invention.
5 is a view illustrating a modified state of the position adjusting support according to an embodiment of the present invention.
6 is a view showing another modified state of the position adjusting support according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a pipe inspection apparatus for a power plant according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 2 is a side view of FIG. 1, and FIG. 3 is a cross-sectional view illustrating a first pipe fixture according to an embodiment of the present invention. Referring to FIG. 1, And FIG. 4 is an enlarged view illustrating a second pipe fixture and a position adjustment support according to an embodiment of the present invention.

5 is a view showing a modified state of the position adjustment support according to an embodiment of the present invention, and FIG. 6 is a view showing another modified state of the position adjustment support according to an embodiment of the present invention .

As shown in FIGS. 1 to 4, in order to transfer steam discharged from a high-pressure turbine to a low-pressure turbine, a pipe inspection apparatus for a power plant according to an embodiment of the present invention includes a cross over pipe And a high pressure fluid is supplied to the pipe 10 so that leakage of the pipe 10 can be checked.

To this end, the apparatus for inspecting a pipe of a power plant according to the present embodiment includes a first pipe fixing table 110 which is hermetically sealed by one end of a pipe 10, a second pipe fixing member 110 which hermetically seals the other end of the pipe 10, A position adjustment support 130 for adjusting the position of the second pipe fixture 120 and a fluid supply line 140 for supplying a fluid to the pipe 10. [

The first pipe fixing table 110 includes a first frame 111, a first flange unit 113 and a first fixing unit 115 so that the pipe 10 can be easily and stably seated and engaged, And the pipe 10 are tightly coupled to each other through the fastening of the nut.

The first frame 111 is connected to the position adjusting support 130 via the connecting rod 150 and the first flange unit 113 is engaged.

The first flange unit 113 is provided in the first frame 111, and one end of the pipe 10 is vertically coupled. The first flange unit 113 includes a first ball member 113a for easily seating and aligning the pipe 10 and a second ball member 113b for completely sealing the pipe 10 seated on the first ball member 113a And a first flange 113b.

The first ball member 113a is formed in a ball shape and has a pipe guide portion 113c to be inserted into the pipe 10 at the upper end and a lower end portion to be fixed to the first frame 111. [ The first ball member 113a has a guide sloped surface 113d formed at the upper end of the pipe guide portion 113c and a fluid supply line 140 connected to the lower end thereof to facilitate the fitting of the pipe 10. [

The first flange 113b is joined to the central portion of the first ball member 113a and a plurality of bolt fastening holes are formed in the circumferential direction so as to be tightly engaged with the flange of the pipe 10 through bolts and nuts. The first flange 113b is provided with a first temporary fixing part 115 for temporarily fixing the pipe 10.

The first tilting portion 115 is provided with a pipe 10 to be fixed to the first pipe fixing table 110 and the second pipe fixing table 120 with the crane removed, ). The first fixing unit 115 includes a first guide shaft 115a provided on the first flange 113b and a first fixing member 115a provided on the first flange 113b to fix the pipe 10 115b. At this time, the first guide shaft 115a and the first fixing member 115b are inserted into the fastening holes of the flange of the pipe 10.

The first fixing member 115b according to the present embodiment can use a pneumo-hydraulic cylinder, and a nut for preventing disengagement of the pipe 10 is fastened to the cylinder rod. That is, when the cylinder rod passes through the fastening hole of the pipe 10, the first fastening member 115b is engaged with the nut, and the pipe 10 is tightened through the contraction of the cylinder rod.

The other end of the pipe 10 is supported on the position adjusting support 130 and the other end of the pipe 10 is coupled to the second pipe fixing base 120, do.

The second pipe fixture 120 includes a second frame 121, a second flange unit 123 and a second fixture 125 to tightly seal the other end of the pipe 10, And its position is adjusted by the support base 130 according to the length and height of the pipe.

The second frame 121 is installed on the position adjusting support so as to be reciprocally movable, and the second flange unit 123 is rotatably engaged. The second frame 121 also has a horizontal fitting member 121a for matching the horizontal position of the pipe 10 with the second flange unit 123. [ The horizontal aligning member 121a is rotated up and down in the second frame 121 to rotate the second flange unit 123 rotatably coupled to the second frame 121.

The second flange unit 123 is provided on the second frame 121 and is coupled horizontally with one end of the pipe 10. [ The second flange unit 123 includes a second ball member 123a which is aligned and fixed to the pipe 10 and a second ball member 123b which is a member for completely sealing the flange of the pipe 10 with the second ball member 123a 2 flange 123b.

The second ball member 123a is formed in a BOWL shape and has a second flange 123b at one end and a second end rotatably coupled to the second frame 121. [ The second ball member 123a is provided with a hinge bracket 123c on the outer surface of the other end so as to be rotatably coupled to the second frame 121. [ The hinge bracket 123c is hinged to the second frame 121 through a hinge shaft and a long hole is formed in which the hinge shaft is coupled so that the second ball member 123a can be slightly moved up and down in the second frame 121 do.

The second flange 123b is joined to the outer surface of one end of the second ball member 123a and a plurality of bolt fastening holes are formed in the circumferential direction so as to be tightly engaged with the flange of the pipe 10 through bolts and nuts. The second flange 123b is supported by the horizontal fitting member 121a on the outer peripheral surface of the lower end portion and is provided with a second fixing portion 125 for temporarily fixing the pipe 10. [

The second tilting portion 125 stably fixes the pipe 10 together with the first tilting portion 115 in a state where the pipe 10 which is seated on the pipe inspection device through the crane is removed from the crane. The second fixing unit 125 includes a second guide shaft 125a provided on the second flange 123b and a second fixing member 125a provided on the second flange 123b and fixing the pipe 10 125b. At this time, the second guide shaft 125a and the second fixing member 125b are inserted into the fastening holes of the flange of the pipe 10. A pneumatic / hydraulic cylinder may be used as the second fixing member 125b according to the present embodiment.

The position adjustment support 130 for adjusting the position of the second pipe fixing base 120 includes a base 131, a driving member 133, and a guide member 135. In addition, the position adjustment support 130 further includes a support member 139 on which the other end flange of the pipe 10 is supported. The support member 139 is adjusted in height through rotation so as to align the flange fastening holes of the pipe 10 and the fastening holes of the second flange 123b.

The base 131 is provided on the connecting rod 150, and the second frame 121 is movably installed. To this end, the base 131 is provided with a guide member 135 to which the second frame 121 is slidably coupled. The guide member 135 according to the present embodiment can also be used as an LM guide.

The driving member 133 is provided on the base 131 so as to be connected to the second frame 121 and slides the second frame 121 on the guide member 135. The pneumatic cylinder may be used as the ball type member 133 according to the present embodiment.

5 and 6, the height of the position adjustment support 130 may be adjusted according to the shape of the pipe 10 in the pipe inspection apparatus of the power plant according to the embodiment of the present invention. For this purpose, the position adjusting support 130 according to the present embodiment further includes a height adjusting portion 137 for adjusting the height of the base portion 131.

5, the height adjusting part 137 may further include a height adjusting block 137a provided between the connecting part 150 and the base part 131 to adjust the height of the base part 131 have. At least one height adjusting block 137a may be provided according to the shape of the pipe 10. [

6, the height adjusting part 137 may further include a lift 137b provided between the connecting part 150 and the base part 131 for adjusting the height of the base part 131 have. The height of the base portion 131 can be more variously and finely adjusted by the lift 137b.

The operation of the pipe inspection apparatus of the power plant according to an embodiment of the present invention will be described.

First, the pipe 10 for leakage inspection is mounted on the first pipe fixing table 110 and the position adjusting support 130 using a crane. At this time, the pipe 10 is mounted on the first ball member 113a while the pipe guide portion 113c of the first pipe fixture 110 is inserted into one end thereof, and the other end is fixed to the support member (Not shown). At this time, the first guide shaft 115a and the first fixing member 115b are inserted into the one end flange fastening hole of the pipe 10.

The supporting member 139 and the horizontal aligning member 121a are adjusted by operating the driving member 133 to bring the second ball member 123a close to the pipe 10, And the fastening holes of the second flange 123b are aligned with each other. The driving member 133 is operated to insert the second guide shaft 125a and the second fixing member 125b into the other end flange fastening hole of the pipe 10. [

The first fixing member 115b and the second fixing member 125b are operated to stably fix the pipe 10 to the first pipe fixing table 110 and the second pipe fixing table 120, Is removed, and one end and the other end of the pipe 10 are tightly sealed to the first flange 113b and the second flange 123b by using bolts and nuts.

Thereafter, high-pressure fluid is supplied to the inside of the pipe 10 through the fluid supply line 140 to check whether the pipe 10 is leaked.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the claims.

10: pipe 110: first pipe holder
111: first frame 113: first flange unit
115: first fixing part 120: second pipe fixing part
121: second frame 123: second flange unit
125: second guide 130: positioning arm
131: base portion 133: driving member
135: guide member 137: height adjusting portion

Claims (9)

A first pipe fixture having one end of the pipe joined and sealed; A second pipe fixture to which the other end of the pipe is coupled and sealed; A second pipe fixing base movably installed on the second pipe fixing base, a position adjusting support for moving the position of the second pipe fixing base according to the length of the pipe; And a fluid supply line connected to the first pipe fixture or the second pipe fixture to supply a high-pressure fluid,
The first pipe fixture includes: a first frame; A first flange unit provided on the first frame and vertically coupled to the pipe; And a first temporary fixing unit provided in the first flange unit and fixing the pipe to the first flange unit,
The first flange unit may include: a first ball member installed on the first frame such that an upper end thereof is inserted into the pipe; And a first flange provided on the first ball member such that the first temporary fixing unit is installed, the first flange being engaged with a flange of the pipe,
The first fixing unit may include: a first guide shaft provided in the first flange unit and inserted into the pipe; And a first fixing member provided on the first flange unit to be inserted into the pipe, the first fixing member closely contacting the pipe with the first flange unit,
The position adjustment support may include: a base portion to which the second pipe fixing portion is movably installed; A driving member provided on the base portion to be connected to the second pipe fixing member and reciprocating the second pipe fixing member; A guide member provided on the base for movably mounting the second pipe fixture; And a height adjuster for adjusting a height of the base,
The height adjusting unit may include a height adjusting block provided between the connecting block and the base to adjust the height of the base block. And a lift provided between the linkage and the base portion;
Wherein the pipe inspection apparatus comprises: delete delete delete 2. The apparatus according to claim 1, wherein the second pipe-
A second frame horizontally installed on the position adjusting support;
A second flange unit rotatably provided on the second frame and coupled to the pipe horizontally; And
A second brace provided to the second flange unit to fasten the pipe to the second flange unit;
Wherein the pipe inspection apparatus comprises: 6. The apparatus of claim 5, wherein the second flange unit comprises:
A second ball member rotatably coupled to the second frame so as to be in intimate contact with the pipe when the pipe and the second flange unit are coupled through the bolt and the nut; And
A second flange provided on the second ball member such that the second temporary fixing unit is installed, the flange being engaged with the flange of the pipe;
Wherein the pipe inspection apparatus comprises: [6] The apparatus of claim 5,
A second guide shaft provided in the second flange unit and inserted into the pipe; And
A second fixing member provided in the second flange unit to be inserted into the pipe, the second fixing member being adapted to closely contact the pipe with the second flange unit;
Wherein the pipe inspection apparatus comprises: delete delete
KR1020150143720A 2015-10-14 2015-10-14 Pipe test equipment of power plant KR101752710B1 (en)

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KR1020150143720A KR101752710B1 (en) 2015-10-14 2015-10-14 Pipe test equipment of power plant

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KR101752710B1 true KR101752710B1 (en) 2017-07-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102435392B1 (en) * 2022-06-15 2022-08-23 유한회사 이디에스코리아 Gas line inspection device for semiconductor manufacturing equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101111598B1 (en) * 2011-08-30 2012-02-14 주식회사 이피아이 Coupled pipe end hydrostatic tester

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101111598B1 (en) * 2011-08-30 2012-02-14 주식회사 이피아이 Coupled pipe end hydrostatic tester

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