KR101673407B1 - Damage reducing structure for hyperbaric chamber by broken specimen method for pressure test using the same - Google Patents

Damage reducing structure for hyperbaric chamber by broken specimen method for pressure test using the same Download PDF

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Publication number
KR101673407B1
KR101673407B1 KR1020150164232A KR20150164232A KR101673407B1 KR 101673407 B1 KR101673407 B1 KR 101673407B1 KR 1020150164232 A KR1020150164232 A KR 1020150164232A KR 20150164232 A KR20150164232 A KR 20150164232A KR 101673407 B1 KR101673407 B1 KR 101673407B1
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KR
South Korea
Prior art keywords
specimen
round bar
bar body
pressure chamber
breakage
Prior art date
Application number
KR1020150164232A
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Korean (ko)
Inventor
최혁진
김진민
이승국
Original Assignee
한국해양과학기술원
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Priority to KR1020150164232A priority Critical patent/KR101673407B1/en
Application granted granted Critical
Publication of KR101673407B1 publication Critical patent/KR101673407B1/en
Priority to PCT/KR2016/013328 priority patent/WO2017090938A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075—Strain-stress relations or elastic constants
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/0202—Control of the test
    • G01N2203/0204—Safety arrangements, e.g. remote control, emergency stop
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/022—Environment of the test
    • G01N2203/023—Pressure
    • G01N2203/0232—High pressure

Abstract

The present invention relates to a structure for reducing damage to a hyperbaric chamber due to breakage of a specimen, which can prevent damage to the inside of a hyperbaric chamber due to breakage of a specimen by supporting the inside of the tubular specimen at a distance to prevent the breakage of the specimen due to excessive deformation while allowing only the deformation of the specimen due to high pressure, and a pressure test method using the same. The structure for reducing damage to a hyperbaric chamber due to breakage of a specimen comprises a plurality of breakage prevention units which are inserted in the tubular specimen in the longitudinal direction of the specimen to be spaced apart from the inner peripheral surface of the specimen, prevent the breakage of the specimen by supporting the specimen when the specimen is deformed by high pressure, and are stacked or omitted according to the length of the specimen.

Description

TECHNICAL FIELD [0001] The present invention relates to a structure for reducing damage to a high-pressure chamber due to breakage of a specimen during a test in a high-pressure chamber, and a method of testing pressure using the damper structure.

More particularly, the present invention relates to a damage reducing structure for a high-pressure chamber, and more particularly, to a method of testing an internal pressure of a high-pressure chamber, Pressure chamber, which is capable of preventing damage to the inside of the high-pressure chamber by preventing damage due to excessive deformation of the specimen, and a method of testing an internal pressure using the same.

Deep sea equipment such as deep water equipment, underwater pipes, submersibles, and pressure vessels normally used in water are subjected to pressure test such as buckling / fatigue strength test under hydrostatic pressure and pressure resistance test under water pressure for performance test and safety evaluation.

This pressure test is performed through a hyperbaric chamber, which is a deep sea pressure simulating test facility for artificially reproducing the high pressure environment of the deep sea.

Specifically, in the withstand pressure test, the specimen to be tested is placed in a high-pressure chamber in a state where the specimen is placed on a cradle, and observing / measuring / power supply equipments such as a camera and various sensors are installed in a high-pressure chamber, To the high-pressure chamber while observing the state of the specimen according to the water pressure.

In the pressure proof test as described above, the high pressure is applied to the specimen and the specimen is deformed, and the pressure strength of the specimen is measured through the pressure at the time of the deformation.

That is, the specimen is deformed when the pressure applied in the high-pressure chamber reaches the limit of strength of the specimen, and if the pressure is applied continuously or excessively high pressure is applied, the specimen is broken inside the high-pressure chamber .

However, when the specimen is broken as described above, there is a problem that the inside of the high-pressure chamber is broken by the debris of the specimen and the momentary impact, or the pipe for pressurization and decompression is clogged. It is troublesome to remove each one from the high-pressure chamber.

Accordingly, there is a demand for a technique capable of reducing the damage of the high-pressure chamber by the specimen when it is necessary to prevent the breakage while permitting only deformation due to the test characteristics of the specimen put into the high-pressure chamber.

Korean Patent Publication No. 10-1148512

SUMMARY OF THE INVENTION The present invention has been made in order to overcome the problems of the prior art as described above, and it is an object of the present invention to provide a method and apparatus for supporting a specimen of a tube- The present invention provides a damage reducing structure of a high-pressure chamber and a method of testing an internal pressure using the same, which can reduce damage inside a high-pressure chamber due to breakage of a specimen.

According to another aspect of the present invention, there is provided a damage reduction structure for a high-pressure chamber, including: a high-pressure chamber for providing a pressure for a pressure-proof test; A tubular specimen to be introduced into the high-pressure chamber; And a cylindrical shape, and is spaced apart from an inner circumferential surface of the specimen. The specimen is supported while supporting the specimen at a high pressure to prevent breakage of the specimen, And a breakage-type breakage-preventing portion in the form of a round bar added or omitted in a laminated state according to the length of the specimen.

For example, the breakage prevention member may include: a solid round bar body; A fitting jaw protruding from the upper end of the round bar body and formed in a stepped shape and being fitted to the lower end of another round bar body and stacked; A fitting groove formed at a lower end portion of the round bar body and formed in a groove shape so as to be sandwiched and laminated on the fitting bar of another round bar body; And a traction connector that allows sequential stacking of the round bar body along the longitudinal direction of the specimen while providing a traction portion of the round bar body.

For example, the pull connector may include at least one female screw formed at an upper end of the round rod body; And a threaded portion formed on an upper end of the male screw portion to be detachably fastened to the female threaded portion and coupled to the female threaded portion when the round rod body is inserted to provide a pulled portion through the hooked portion, And a pulling bolt which is separated from the female threaded portion after insertion of the pulling bolt.

The centering jig may further include a centering jig provided in the high-pressure chamber to form a pressure providing space at a lower end of the fracture prevention zone while centering the fracture prevention zone at the center of the specimen.

For example, the centering jig may protrude from the floor surface in the same manner as the high pressure chamber or separate from the high pressure chamber, and may be inserted into the fitting groove of the round bar body constituting the breaking wall to center the broken wall, A lower protrusion formed to be longer than the depth of the fitting groove to separate the round bar body from the bottom surface of the high pressure chamber; And a plurality of auxiliary protrusions protruding from the bottom surface of the high pressure chamber along the outer periphery of the bottom protrusion to support the bottom surface of the round bar body in a spaced apart state.

The centering jig is symmetrical with the auxiliary protrusions and protrudes from the upper part in the same state as the high pressure chamber or is separated from the upper protrusions, ; ≪ / RTI >

The pressure-proof test method according to the present invention is a tube-like type for pressure-resistance test under water pressure, inserted into the high-pressure chamber along the longitudinal direction of the specimen, spaced apart from the inner circumferential surface of the specimen, And a breakage preventing part in the form of a round bar which is formed in plural and is added or omitted in a laminated state according to the length of the specimen, A solid round bar body; A fitting jaw protruding from the upper end of the round bar body and formed in a stepped shape and being fitted to the lower end of another round bar body and stacked; A fitting groove formed at a lower end portion of the round bar body and formed in a groove shape so as to be sandwiched and laminated on the fitting bar of another round bar body; And a traction connector for permitting successive lamination of the round bar body along the longitudinal direction of the specimen while providing a traction region of the round bar body, wherein the method comprises the steps of: A specimen holding step of placing the tubular specimen in a vertical state in the high-pressure chamber and mounting the same; A round bar body stacking step of pulling the round bar bodies having a smaller outer diameter than the specimen and spaced apart from the inner circumferential face of the specimen and laminating the round bar bodies along the longitudinal direction inside the specimen; And a pressurizing step of supplying a high pressure to the high-pressure chamber.

In addition, the step of laminating the round bar body may include: a connector fastening step of fastening the tow connector to the upper end of the round bar body; A pulling step of pulling the round bar body through the pull connector and stacking the round bar body on the inside of the specimen; And a repetitive pulling step of separating the pulling connector from the round bar body and fastening it to another round bar body, then inserting the fitting groove of the another round bar body into the fitting jaw formed on the upper portion of the round bar body, ; ≪ / RTI >

According to the damage reducing structure of the high-pressure chamber due to the breakage of the specimen according to the present invention and the internal pressure test method using the same, since the breakage prevention zone of the plurality of the round bars is stacked in a state of being separated from the inner circumferential surface of the specimen, If the specimen is deformed excessively due to high pressure, excessive deformation and breakage of the specimen due to the damper force can be prevented by the damper earth and ultimately the damage of the high pressure chamber due to the specimen fragment Can be prevented.

More particularly, the present invention is characterized in that a round bar body constituting a breakage prevention zone is laminated through a fitting jaw and a fitting groove provided at the upper and lower ends, respectively, so that the laminated state can be stably maintained even when high pressure is applied, Since the pull bolt is detachably fastened to the female threaded portion of the round rod body, the round rod body can be sequentially pulled and stacked.

In addition, since the centering jig is provided in the high-pressure chamber, the round bar can be positively placed in the high-pressure chamber, and the centering jig separates the round bar from the bottom surface of the high-pressure chamber. Can be provided.

In addition, since the lower end surface and the upper end surface of the round bar body are supported by the auxiliary protrusions and the upper protrusions, the stacked round bar bodies can be firmly supported.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing the overall structure of a damage reduction structure of a high-pressure chamber due to breakage of a specimen according to the present invention; FIG.
2 is an exploded perspective view showing a breakage prevention zone of the present invention.
3 is a bottom perspective view showing a breakage prevention zone of the present invention.
4 is a vertical cross-sectional view showing a laminated state of the breakage prevention zone of the present invention.
5 is a block diagram showing a pressure test process according to the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. It is to be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms of disclosure, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ", or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

The damage reducing structure of the high-pressure chamber due to the breakage of the specimen according to the present invention prevents the excessive deformation of the specimen S during the internal pressure test of the specimen S performed in the high-pressure chamber C as shown in FIG. 1 And a plurality of breakage preventing members 100 inserted in the longitudinal direction of the tube-like specimen S to support the specimen S in a spaced apart state.

1, the upper end portion of the specimen S is sealed by the upper cover 151 and the lower end portion of the specimen S is shielded from the bottom surface by the lower cover 152, .

A plurality of breakage preventing zones 100 are formed in a round bar shape and are stacked in a state of being spaced on the inner side of the specimen S to prevent excessive deformation of the specimen S through a space separated from the inner circumferential surface of the specimen S, Thereby preventing the specimen S from being damaged.

2 and 3, the breakage prevention member 100 may include a round bar body 110, a fitting jaw 120, a fitting groove 130, and a traction connector 140 .

As shown in FIG. 2, the round bar body 110 is made of a solid cylindrical material. The round bar body 110 is made of a material such as steel and laminated on the inner side of the specimen S, .

The round bar body 100 is manufactured to have different sizes depending on the inner diameter and the length of the specimen S.

Here, the round bar body 100 may be seated on the movable structure 220 installed on the upper surface of the lower cover 152 while being separated from the lower cover 152 as shown in FIG.

That is, the movable structure 220 supports the round bar body 110 in a state of being separated from the lower cover 152 while being detachably installed in the lower cover 152.

The fitting jaw 120 is a component that enables stacking of the round bar body 110 together with the fitting groove 130 to be described later. As shown in FIG. 2, the round bar body 110 has a step- .

3, the fitting groove 130 is formed in a groove shape at the lower end of the round bar body 110 and has the same diameter as the fitting bar 120 as shown in FIG. 3, And is laminated.

That is, the round bar body 110 is stacked with another round bar body through the engagement of the fitting bar 120 and the fitting groove 130 while being stacked along the longitudinal direction inside the specimen S.

Accordingly, even when high pressure is applied to the high-pressure chamber C, the plurality of round rod bodies 110 can maintain a laminated state and can stably hold the specimen S even when the specimen S is deformed by high pressure. It is possible to prevent breakage due to excessive deformation of the specimen S while supporting it.

The pull connector 140 is a component that permits sequential stacking of the round bar body 100 along the length of the specimen S by providing a traction portion of the round bar body 100.

That is, the pull connector 140 is a component that provides a fastening portion of the pull string in order to pull the round rod body 100 made of a heavy weight body with a crane not shown.

Such a pull connector 140 may be configured to include a female thread 141 and a pull bolt 142 as shown in FIG.

The female thread 141 is formed through the upper end of the round bar body 110 as shown in FIG.

As shown in the figure, the female screw 141 may be formed at the center of the upper end of the round rod body 110. Alternatively, when the weight of the round rod body 110 is large, . ≪ / RTI >

The pulling bolt 142 is a component that is detachably fastened to the female threaded portion 141 to provide a hooking portion of the pulling string.

2, the pull bolt 142 is formed with a male thread 141a at one end thereof and is fastened to the female thread 141, and a ring 142b having a ring shape is formed at the other end Thereby providing a fastening portion of the pull string.

The pull bolt 142 is fastened to the female threaded portion 141 of the round rod body 110 through the male screw portion 142a when the round rod body 110 is inserted into the high pressure chamber C, And then separated from the round bar body 110, thereby enabling another round bar body to be stacked on the upper portion of the round bar body 110.

The breakage preventing structure of the specimen according to the present invention may further include a centering jig (not shown).

The centering jig is a constituent element for centering the circular rod main body 110 to be placed in the high-pressure chamber C in the center of the specimen S and positioning the same.

For example, the centering jig may include a lower projection protruding from the upper surface of the lower cover 152 to provide a fitting portion of the fitting groove 130 provided at the lower end of the round bar body 110.

The lower protrusion may be configured to be removably configured separately from the lower cover 152 like the movable structure 220 described above, or may protrude from the lower cover 152 in the same manner.

In addition, the centering jig may further include an upper projection projected downward from the upper cover to support the upper end surface of the round bar body 100 in a fixed position.

A pressure-proof test method using the present invention including the above-described components will be described with reference to Fig.

The specimen S is put into a high pressure chamber C in a vertical state and is mounted thereon (S100).

At this time, the specimen S can be directly mounted in the high-pressure chamber C with the lower end portion thereof being shielded by the lower cover 152, and is inserted and fixed in a state fixed to a mounting member such as a tool cage .

The tester stacks the round bar body 110 having a smaller outer diameter than the specimen S and spaced apart from the inner circumferential surface of the specimen S along the longitudinal direction inside the specimen S at step S200.

At this time, the tester tightens the pull bolt 142 to the female screw 141 formed on the upper end of the round bar body 110 (S210)

Next, the tester connects the pull string of the crane to the hook 142b of the pull bolt 142, and then operates the crane to stack the round bar body 110 inside the specimen S.

At this time, the round bar body 110 is fixedly positioned while being inserted into the lower projection provided in the high-pressure chamber C through the fitting groove 130, and is supported by the auxiliary projections in a spaced apart state.

Next, the tester separates the pull bolt 142 from the fixed round bar body 110 and fastens it to another round bar body 110, pulls the other round bar body 110 to the top of the round bar body 110 (S220)

At this time, the round rod main bodies 110 are firmly stacked in a state of being fitted by mutual engagement of the fitting jaw 120 and the fitting groove 130.

The tester then shields the upper end of the specimen S with the upper cover 151 (S250), closes the high-pressure chamber C, and provides a pressure to the high-pressure chamber or changes the specimen S (S300).

When the pressure of the high-pressure chamber C reaches the allowable strength, the specimen S is deformed toward the round bar body 110 while being deformed, and the tester measures the pressure at which the specimen S is deformed.

At this time, the round bar body 110 supports the specimen S which is crushed in the specimen S, while preventing the specimen S from being excessively deformed.

As a result, the test is terminated in the high-pressure chamber C with the damage caused by the impact or breakage of the specimen S being minimized.

As described above, according to the damage reducing structure of the high-pressure chamber due to breakage of the specimen according to the present invention and the internal pressure test method using the same, the breakage- The deformation of the specimen S by the high pressure is allowed through the spacing space and the specimen S is excessively deformed by the breakage of the specimen S S can be prevented from being excessively deformed and broken and ultimately damage to the high-pressure chamber C by the specimen S fragments can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various changes, substitutions, and alterations can be made therein without departing from the spirit of the invention.

100: Earth damaged
110: round bar body
120: insert jaw
130:
140: Traction connector
141: Female threads
142: pull bolt
142a: Male threads
142b:
220: movable structure

Claims (8)

A high pressure chamber for providing a pressure for pressure resistance test during hydraulic pressure;
A tubular specimen to be introduced into the high-pressure chamber; And
And is inserted into the tubular shape along the longitudinal direction of the specimen to be spaced apart from the inner circumferential surface of the specimen and prevents damage to the specimen while supporting the specimen when the specimen is deformed due to high pressure, And a breakage-preventing type breaker in the form of a round bar added or omitted in a laminated state according to the length of the specimen,
The breakage-
A solid round bar body;
A fitting jaw protruding from the upper end of the round bar body and formed in a stepped shape and being fitted to the lower end of another round bar body and stacked;
A fitting groove formed at a lower end portion of the round bar body and formed in a groove shape so as to be sandwiched and laminated on the fitting bar of another round bar body; And
And a traction connector that allows sequential stacking of the round bar body along the length of the specimen while providing a traction portion of the round bar body,
An upper cover for shielding an upper end portion of the specimen;
A lower cover that shields the lower end of the specimen in a state spaced apart from the bottom surface of the high-pressure chamber; And
And a movable structure for supporting the round rod body in a state of being separated from the lower cover in a detachably installed state on the upper surface of the lower cover,
And a centering jig provided in the high-pressure chamber for centering the breakage-resistant zone at a center of the specimen and forming a pressure-providing space at a lower end of the breakage-barrier zone. Abatement structure.
delete The method according to claim 1,
The tow connector
At least one female screw formed at an upper end of the round rod body; And
Wherein a threaded portion is formed on an upper end of the male threaded portion to be detachably coupled to the female threaded portion and is coupled to the female threaded portion when the rounded body is inserted to provide a pulled portion through the hooked portion, And a pull bolt which is separated from the female screw part after the insertion.
delete The method according to claim 1,
In the centering jig,
Pressure chamber is formed integrally with or separated from the high-pressure chamber so as to protrude from the bottom surface of the high-pressure chamber so as to be fitted into the fitting groove of the round bar body constituting the breaking chamber to center the broken- A lower protrusion which separates the round bar body from a bottom surface of the high pressure chamber; And
And a plurality of auxiliary protrusions protruding from the bottom surface of the high pressure chamber along the outer periphery of the bottom protrusion to support the bottom surface of the round bar body in a spaced apart state. Abatement structure.
The method of claim 5,
In the centering jig,
And a plurality of upper protrusions symmetrically formed with the auxiliary protrusions and protruding from the upper part in the same state as the high pressure chamber or separated from each other and supporting the upper surface of the round bar body in a separated state Damage reduction structure of high pressure chamber due to breakage of specimen.
Pressure chamber, and is spaced apart from the inner circumferential surface of the specimen while being inserted along the longitudinal direction of the specimen inserted into the high-pressure chamber. The specimen is supported by the specimen during the deformation of the specimen due to the high pressure, And a breakage prevention unit in the form of a round bar which is formed in plurality and is added or omitted in a laminated state according to the length of the specimen, wherein the breakage prevention unit comprises: a solid round bar body; A fitting jaw protruding from the upper end of the round bar body and formed in a stepped shape and being fitted to the lower end of another round bar body and stacked; A fitting groove formed at a lower end portion of the round bar body and formed in a groove shape so as to be sandwiched and laminated on the fitting bar of another round bar body; And a traction connector that permits sequential stacking of the round bar body along the longitudinal direction of the specimen while providing a traction portion of the round bar body, the top cover shielding the top portion of the specimen; A lower cover that shields the lower end of the specimen in a state spaced apart from the bottom surface of the high-pressure chamber; A movable structure for supporting the round rod body in a state of being separated from the lower cover in a detachably installed state on the upper surface of the lower cover; And a centering jig provided in the high-pressure chamber for centering the breakage-resistant zone at a center of the specimen and forming a pressure-providing space at a lower end of the breakage-resistant zone, and a damper reducing structure for damage to the high- As the withstand pressure test method,
A specimen holding step of placing the tubular specimen in a vertical state in the high-pressure chamber and mounting the same;
A round bar body stacking step of pulling the round bar bodies having a smaller outer diameter than the specimen and spaced apart from the inner circumferential face of the specimen and laminating the round bar bodies along the longitudinal direction inside the specimen; And
And a pressurizing step of supplying a high pressure to the high-pressure chamber.
The method of claim 7,
Wherein the round bar body laminating step comprises:
A connector fastening step of fastening the pull connector to an upper end of the round bar body;
A pulling step of pulling the round bar body through the pull connector and stacking the round bar body on the inside of the specimen; And
Separating the pull connector from the round bar body and fastening the round bar body to another round bar body, then inserting the fitting groove of the another round bar body into the fitting jaw formed in the upper portion of the round bar body to sequentially laminate the round bar bodies; Wherein the pressure-proof test method comprises the steps of:
KR1020150164232A 2015-11-23 2015-11-23 Damage reducing structure for hyperbaric chamber by broken specimen method for pressure test using the same KR101673407B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150164232A KR101673407B1 (en) 2015-11-23 2015-11-23 Damage reducing structure for hyperbaric chamber by broken specimen method for pressure test using the same
PCT/KR2016/013328 WO2017090938A1 (en) 2015-11-23 2016-11-18 Structure for reducing damage to high-pressure chamber caused by damage to specimen during test in high-pressure chamber and internal pressure test using structure

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KR1020150164232A KR101673407B1 (en) 2015-11-23 2015-11-23 Damage reducing structure for hyperbaric chamber by broken specimen method for pressure test using the same

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07270271A (en) * 1994-03-28 1995-10-20 Nippon Sanso Kk Method and equipment for measuring gas barrier properties of plating film
KR20100053450A (en) * 2008-11-12 2010-05-20 야마하 파인 테크 가부시키가이샤 Leak inspection apparatus
KR101148512B1 (en) 2011-12-22 2012-05-21 한국해양연구원 Device and method of signal transmission between hyperbaric chamber and underwater housing using vibration in hydrostatic test
KR101499003B1 (en) * 2013-11-19 2015-03-05 한국해양과학기술원 Auxiliary chamber equipment for testing resisting pressure of test piece and operation method of same
KR20150040518A (en) * 2013-10-07 2015-04-15 대우조선해양 주식회사 Pressure Vessel for Testing BOP

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3164523B2 (en) * 1996-12-26 2001-05-08 日本碍子株式会社 Internal water pressure strength test method for bottomed cylinder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07270271A (en) * 1994-03-28 1995-10-20 Nippon Sanso Kk Method and equipment for measuring gas barrier properties of plating film
KR20100053450A (en) * 2008-11-12 2010-05-20 야마하 파인 테크 가부시키가이샤 Leak inspection apparatus
KR101148512B1 (en) 2011-12-22 2012-05-21 한국해양연구원 Device and method of signal transmission between hyperbaric chamber and underwater housing using vibration in hydrostatic test
KR20150040518A (en) * 2013-10-07 2015-04-15 대우조선해양 주식회사 Pressure Vessel for Testing BOP
KR101499003B1 (en) * 2013-11-19 2015-03-05 한국해양과학기술원 Auxiliary chamber equipment for testing resisting pressure of test piece and operation method of same

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