KR20130089339A - Watertight jig for testing water pressure of grp pipe, and method for testing water pressure of grp pipe using the same - Google Patents

Watertight jig for testing water pressure of grp pipe, and method for testing water pressure of grp pipe using the same Download PDF

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Publication number
KR20130089339A
KR20130089339A KR1020120010618A KR20120010618A KR20130089339A KR 20130089339 A KR20130089339 A KR 20130089339A KR 1020120010618 A KR1020120010618 A KR 1020120010618A KR 20120010618 A KR20120010618 A KR 20120010618A KR 20130089339 A KR20130089339 A KR 20130089339A
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South Korea
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jig
watertight
sleeve
main plate
joint sleeve
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KR1020120010618A
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Korean (ko)
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곽태옥
김진웅
권순성
김광석
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대우조선해양 주식회사
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Priority to KR1020120010618A priority Critical patent/KR20130089339A/en
Publication of KR20130089339A publication Critical patent/KR20130089339A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • 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
    • G01M3/28—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • 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

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The present invention develops a jig that can seal the tip end of the GRP pipes in a watertight manner, and by using the developed watertight jig, it is possible to carry out a pressure test on the GRP pipe for each unit block in the pre-design stage. The purpose is to minimize the occurrence of
The present invention for achieving the above object is combined with the end sleeve (3) coupled to the front end of the GRP pipe (1) for the hydraulic pressure test for the GRP pipe (1) installed in each sea block of each unit block of the vessel As a watertight jig installed in the joint sleeve 5, the disc-shaped main plate 10, which is installed in an airtight manner with respect to the inner circumferential surface of the joint sleeve 5, is padded and coupled to one side above the center of the main plate 10. The disk-shaped center plate 12 is coupled to the plurality of reinforcements 14 are coupled to radially disposed toward the edge of the main plate 10 from the outer circumferential surface of the center plate 12 and screwed with the joint sleeve 5 ), A sealing member 18 installed for watertight about the axial joint between the end sleeve 3 and the joint sleeve 5, and between the end sleeve 3 and the joint sleeve 5 And a stopper key 20 is provided for the rigid coupling of the coupling parts.

Figure P1020120010618

Description

Watertight jig for testing water pressure of GRP pipe, and method for testing water pressure of GRP pipe using the same}

The present invention relates to a water pressure test jig for a glass fiber reinforced plastic pipe and a water pressure test method using the same, and more specifically, to develop a jig for watertightly closing a GRP pipe and to use the watertight jig at a pre-design stage. The present invention relates to a watertight jig for testing water pressure of glass fiber reinforced plastic pipes and a method for testing water pressure using the same.

In general, seawater lines of ships are manufactured using steel pipes, and the watertightness of these seawater lines is verified by hydraulic tests for each unit block at the pre-design stage. This hydraulic test is carried out by welding blind flanges to the ends of steel pipes installed in each unit block.

However, since the seawater line made of steel pipes causes problems such as corrosion by seawater when it is durable, the corrosion resistance in recent years is excellent semi-permanently, and excellent durability against other chemicals, etc. It is being replaced by resin-based glass-reinforcement plastic (GRP) piping that can adopt a joining method. In particular, in the case of GRP piping, there is an advantage that it is not necessary to perform a non-destructive test such as X-ray inspection as in the metal piping by conventional welding.

However, the newly adopted GRP pipes for the formation of seawater lines have advantages in terms of durability and corrosion resistance compared to the pipes of conventional metallic steel pipes.However, each unit block can finish the tip for hydraulic test. Due to the fact that they did not establish a plan, it was not possible to carry out a hydraulic test on the seawater line of the GRP piping material for each unit block at the pre-design stage.

As a result, when GRP piping is applied to the seawater line, the hydraulic pressure test on the piping was forced to be carried out at the post chairman stage after the assembly of the block was completed. In addition to the problem of delaying the delivery time over a large part of the process, the difficulty of work for post-action is not easy compared to other work processes, which can greatly reduce the productivity in shipbuilding. It causes a problem. In other words, the occurrence of such a problem is impossible that the GRP pipes can be finished by welding using blind flanges, unlike conventional steel pipes, and above all, GRP pipes can sometimes be accompanied by poor watertight due to various causes in the manufacturing process. Because there is.

Accordingly, the present invention has been made in view of the above-mentioned matters, and developed a water blocking jig capable of watertightly closing the distal end portion of the GRP pipe, and using the same, water pressure on the GRP pipe for each unit block in the preceding design stage. The objective is to enable testing to minimize the occurrence of post-action actions in the post process.

The present invention for achieving the above object is a watertight jig installed on the joint portion of the piping member for the hydraulic pressure test for the piping member is adopted as a seawater line for each unit block of the vessel,

A disc-shaped main plate that is airtightly installed with respect to the inner circumferential surface of the distal end of the piping member;

A disk-shaped center plate coupled to one side on the center of the main plate; And

It characterized in that it comprises a plurality of reinforcing material coupled to the radially arranged toward the edge portion of the main plate from the outer peripheral surface of the center plate and screwed with the piping member.

The present invention is a watertight jig installed in the joint sleeve coupled to the end sleeve coupled to the front end of the GRP pipe for the hydraulic test of the GRP pipe is adopted as installed in each unit block of the vessel,

A disc-shaped main plate that is airtightly installed with respect to the inner circumferential surface of the joint sleeve;

A disk-shaped center plate coupled to one side on the center of the main plate;

A plurality of stiffeners coupled radially to the edge portion of the main plate at an outer circumferential surface of the center plate and screwed to the joint sleeve;

A sealing member installed for watertight about the shaft joint portion between the end sleeve and the joint sleeve; And

And a stopper key installed for coupling stiffness to the shaft joint portion between the end sleeve and the joint sleeve.

The present invention is a hydraulic pressure test method using a watertight jig installed in a joint sleeve coupled to the end sleeve coupled to the front end of the GRP piping for the hydraulic pressure test for the GRP pipe is adopted and installed as a seawater line for each unit block of the vessel ,

Fixing one end portion of the end sleeve to one end portion of the GRP pipe by fixing the one end portion of the end sleeve;

Fixing one end portion of the joint sleeve to an outer circumferential surface of the other end portion of the end sleeve;

Screwing the watertight jig on the inner circumferential surface of the other end of the joint sleeve; And

And applying a predetermined pressure to a pressure space inside the interior sealed by the watertight jig.

According to the watertight test jig for the glass fiber reinforced plastic pipe according to the present invention and the water pressure test method using the same, the tip of the GRP pipe can be watertightly closed when replacing the pipe applied to the seawater line of the vessel with GRP material. By presenting a new type of water blocking jig, it is possible to test the hydraulic pressure of the GRP pipe for each unit block in the pre-design stage, thereby minimizing the occurrence of post-actions in the post-process or completely eliminating the occurrence of post-actions. Thus, it is possible to further improve the productivity of ship construction.

1 is a front view showing a watertight jig for the hydraulic test of the glass fiber reinforced plastic pipe according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA of the watertight jig illustrated in FIG. 1. FIG.
Figure 3 is a cross-sectional view showing the configuration of a pressure test apparatus for glass fiber reinforced plastic pipe using a watertight jig according to the present invention.
Figure 4 is a cross-sectional view showing a state in which the water-tight jig according to the present invention is installed on the joint portion of the actual glass fiber reinforced plastic pipe.

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

1 and 2, the watertight jig for the hydraulic test of the glass fiber reinforced plastic pipe according to the present invention is in the form of a cap jig installed in the piping member is adopted as the seawater line for each unit block of the vessel, A disc-shaped main plate 10, which is installed in a hermetic manner with respect to the inner circumferential surface of the distal end portion, a disc-shaped center plate 12 that is joined to protrude outward on one side from the center of the main plate 10, and the center plate 12. Stiffener 14 formed in the form of a plurality of rectangular bars that are coupled to be radially disposed toward the edge portion of the main plate 10 from the outer circumferential surface of the main plate 10 and screwed with the piping member, and an edge of the main plate 10. It is coupled to extend along the thickness direction of the main plate 10 at the site is fixed by the screw coupling to the piping member It is a square having a second reinforcement (16) consisting of a bar shape.

In this case, the reinforcing member 14 is radially disposed at equal distances from each other with respect to the center of the main plate 10, and the auxiliary reinforcing material 16 is based on the center of the main plate 10. By the reinforcing member 14 is arranged in a standing state at a distance of equal intervals between each other. To this end, the reinforcing material 14 is fixed by TIG welding over the entire surface of the main plate 10 facing one side and the outer peripheral surface of the center plate 12, the auxiliary reinforcing material 16 is the main plate The same with respect to one side of (10) is also fixed by TIG welding. Reference numeral H in the figure corresponds to a hole passing through the main plate 10 and the center plate 12.

3 is a cross-sectional view showing the configuration of a device for a hydraulic test for the GRP pipe 1 by using a cap jig corresponding to the watertight jig shown in FIGS. 1 and 2, respectively, the end sleeve 3 ) Is fixed to the joint sleeve (5) for the shaft joint with the opposite GRP pipe at the tip. In this case, the first cap jig and the second cap jig corresponding to the watertight jig are respectively installed on the inner circumferential surface of the end sleeve 3 and the inner circumferential surface of the joint sleeve 5, respectively, the first cap jig and the second cap. The jig has the same configuration as the watertight jig shown in Figs. 1 and 2, respectively. However, the first cap jig and the second cap jig only have a size difference corresponding to the inner diameters of the end sleeve 3 and the joint sleeve 5, respectively, and the outside and the hydraulic space S formed therein. The same configuration is used to block traffic.

That is, the cap jig is padded on one side at a portion of the disc-shaped main plate 10 and the main plate 10 which are installed to be airtight with respect to the inner circumferential surface of the end sleeve 3 or the joint sleeve 5, respectively. The disk-shaped center plate 12 is coupled to protrude toward, the end sleeve is coupled so as to be spaced radially spaced apart from each other radially toward the edge portion of the main plate 10 from the outer peripheral surface of the center plate 12 3) or a reinforcement 14 in the form of a plurality of rectangular bars, each screwed and supported with respect to the joint sleeve 5, and from the edge portion of the main plate 10 between the reinforcement 14; A plurality of angular bars that are coupled to extend along the thickness direction of 10) and are each screwed to the end sleeve 3 or the joint sleeve 5; An auxiliary reinforcing material 16 is provided in a sub-form.

At this time, the main plate 10 is formed by the cap jig by the outer peripheral surface of the edge portion is hermetically coupled to the inner peripheral surface of the end sleeve 3 or the joint sleeve 5 via a sealing material for watertightness or the like, respectively. The pressure space (S) is switched to a state that is completely blocked traffic from the outside.

The reinforcing member 14 forms a tapping hole 14a for screwing into the inner circumferential surface of the end sleeve 3 or the joint sleeve 5 on the outer circumferential surface of the edge portion, and through the tapping hole 14a. By fastening the bolt B, the reinforcement 14 is firmly fixed to the inner circumferential surface of the end sleeve 3 or the joint sleeve 5, respectively. That is, the fixed installation of the cap jig with respect to the inner circumferential surface of the end sleeve 3 or the joint sleeve 5 is realized by screwing to the reinforcement 14. To this end, the reinforcing material 14 is firmly coupled to the whole contact surface by the TIG welding between one side of the main plate 10 and the outer peripheral surface of the center plate 12.

In addition, the auxiliary reinforcing material 16 forms a tapping hole 16a for screwing into the inner circumferential surface of the end sleeve 3 or the joint sleeve 5 on the outer circumferential surface of the edge portion, respectively, and the tapping hole 16a. By the bolt (B) is fastened through the auxiliary reinforcement 16 is firmly fixed to the inner peripheral surface of the end sleeve 3 or the joint sleeve 5, respectively. That is, the fixed installation of the cap jig with respect to the inner circumferential surface of the end sleeve 3 or the joint sleeve 5 is more firmly realized by screwing the auxiliary reinforcement 16 together with the reinforcement 14. . To this end, the auxiliary reinforcing material 16 is also coupled to the one side of the main plate 10 in the same way by the TIG welding.

On the other hand, the watertight between the end sleeve 3 or the joint sleeve 5 is implemented by a sealing member 18 made of an airtight material, the end sleeve 3 is the sealing member over the entire periphery of the outer peripheral surface of the front end side; A groove of concave shape is formed for the seating of (18). In this case, the outer circumferential surface of the end sleeve 3 may be formed in a plurality of concave grooves at positions spaced apart along the longitudinal direction of the member to install a plurality of sealing members 18. As a result, the sealing member 18 can reliably ensure the airtightness of the shaft joint between the end sleeve 3 or the joint sleeve 5.

The rigid axial joint between the end sleeve 3 or the joint sleeve 5 is also realized by a stopper key 20 of circular cross section made of a flexible rigid material, for example Nylon 66. In this case, in order to install the stopper key 20, the joint sleeve 5 is provided with a key insertion hole 5a in the form of an inclined hole that can be communicated to the outside, and the key insertion hole 5a is the joint sleeve 5 Concave formed in the same shape at the overlapping portion over the entire circumference of the outer circumferential surface of the end sleeve 3 to correspond to the formation position of the groove 5b with the formation of the groove 5b of the semicircular cross section along the entire circumference of the inner circumference It will also communicate with the grooves in the semicircular section.

As a result, the stopper key 20 inserted through the key insertion opening 5a is inserted through the groove 5b formed at the contact portion between the end sleeve 3 or the joint sleeve 5 so that the end sleeve 3 ) Or a rigid shaft joint for the joint between the joint sleeves 5. In the drawing, reference numeral H denotes a hole passing through the main plate 10 and the center plate 12 of the second cap jig installed in the joint sleeve 5, and an internal hydraulic space formed by the cap jig during the hydraulic test. (S) serves as a passage that can provide a high level of pressure.

Therefore, as shown in FIG. 3, the first cap jig and the second cap jig corresponding to the watertight jig are respectively installed on the end sleeve 3 and the joint sleeve 5, and are formed between the first and second cap jig. When a predetermined level of high pressure is provided through the through hole H of the second cap jig into the internal hydraulic space S, the provided pressure is applied to the first cap jig and the joint sleeve 5 installed on the inner circumferential surface of the end sleeve 3. Of the second cap jig installed on the inner circumferential surface of the pipe, and the sealing member 18 provided on the coupling portion between the end sleeve 3 and the joint sleeve 5 do not leak to the outside. It is possible to implement the configuration of the device for.

At this time, the stopper key 20 installed at the coupling portion between the end sleeve 3 and the joint sleeve 5 is disposed between the end sleeve 3 and the joint sleeve 5 even at a high pressure provided in the hydraulic pressure space S therein. It is possible to prevent the coupling of the shaft joint of the. That is, the stopper key 20 has an axial bearing force between the groove of the semicircular cross section formed on the outer circumferential surface of the end sleeve 3 and the groove 5b of the semicircular cross section formed on the inner circumferential surface of the joint sleeve 5. Since it is possible to provide, the axial joint coupling between the end sleeve 3 and the joint sleeve 5 can be held firmly.

Therefore, the water pressure test apparatus using the watertight jig shown in FIG. 3 can be similarly performed in a laboratory under the condition that the pressure test for the GRP pipe installed in each unit block in the preceding design stage is made in the same environment as the actual work site. To prove. In other words, the hydraulic pressure test on the GRP pipe can be performed in the environment that is actually configured by dedicating only the shaft joint of the pipe among the entire pipes of substantial length for each unit block.

Figure 4 is a cross-sectional view showing a state in which the water-tight jig according to the present invention is installed on the joint portion of the actual GRP pipe (1), the hydraulic test method of the GRP pipe (1) using the water-tight jig in the present invention is as follows. It is through the process.

The GRP pipe (1) is fixed by fitting the end sleeve (3) outside the one end of the front end, the joint for the shaft joint with the end sleeve (3) of the opposite GRP pipe (1) outside the front end of the end sleeve (3) Insert the sleeve (5) to fix it. At this time, the shaft joint between the GRP pipe (1) and the end sleeve (3) is applied to each of the surface of the coupling portion in the form of a tapered surface at the corresponding coupling portion, respectively, and then the shaft coupling in the manner of forced press do.

In addition, the shaft joint between the end sleeve 3 and the joint sleeve 5 is implemented through the installation of the sealing member 18 and the stopper key 20, as shown in Figure 3, the sealing member 18 It serves to maintain the confidentiality of the shaft joint portion, the stopper key 20 serves to implement the shaft joint stiffness.

That is, the method of the hydraulic test for the GRP pipe 1 according to the present invention comprises the steps of fixing one end of the end sleeve 3 to the outside of one end of the GRP pipe 1,

Inserting and fixing one end of the joint sleeve 5 to the outer circumferential surface of the other end of the end sleeve 3, installing a watertight jig on the inner circumferential surface of the other end of the joint sleeve 5 by screwing, and the watertight jig It is configured to include a step of applying a predetermined pressure to the hydraulic pressure space (S) of the interior sealed by.

In this case, the step of fixing one end portion of the joint sleeve 5 to the outer peripheral surface of the other end portion of the end sleeve 3 seals the shaft joint portion between the end sleeve 3 and the joint sleeve 5. And forming a groove for installing the sealing member 18 and the stopper key 20 on the outer circumferential surface of the other end of the end sleeve 3 in the process of providing the axial support force, and of the joint sleeve 5 Forming a groove 5b for installation of the stopper key 20 and a key insertion hole 5a penetrating through the joint sleeve 5 at a position communicating with the groove 5b on an inner circumferential surface of one end portion; do.

On the other hand, in the hydraulic test for the GRP pipe (1), it is also possible to install a watertight jig limited to the joint sleeve (5), in fact, the other end portion of the GRP pipe (1) installed for each unit block This is possible because of the construction of enclosed areas through the installation of equipment such as pumps. If the other end portion of the GRP pipe 1 is open, the end sleeve 3 and the joint sleeve 5 are respectively installed in the same shape as the one end portion, and then the watertight jig is installed to install the water pressure space S. It is good to make it airtight.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the particular details of the embodiments set forth herein. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

1-GRP Tubing 3-End Sleeve
5-joint sleeve
10-main plate 12-center plate
14-stiffeners 16-secondary stiffeners
18-sealing member 20-stopper key

Claims (12)

As a watertight jig installed at the joint part of the piping member for the hydraulic test of the piping member installed in the seawater line for each unit block of the ship,
A disc-shaped main plate 10 installed to be airtight with respect to the inner circumferential surface of the distal end of the piping member;
A disk-shaped center plate 12 coupled to one side on the center of the main plate 10 by padding; And
Hydraulic pressure of the piping member is provided with a plurality of reinforcing member 14 is coupled to the radially from the outer peripheral surface of the center plate 12 toward the edge portion of the main plate 10 and screwed with the piping member Watertight Jig For Testing. The method according to claim 1,
Is coupled to extend along the thickness direction of the main plate 10 at the edge portion of the main plate 10, the piping member further comprises a plurality of auxiliary reinforcing material 16 is screwed with the piping member Watertight jig for hydraulic test. Watertightness is installed in the joint sleeve (5) coupled with the end sleeve (3) coupled to the front end of the GRP piping (1) for the hydraulic pressure test for the GRP pipe (1) installed in each unit block of the vessel As a jig,
A disc-shaped main plate 10 installed in a gas tight manner with respect to the inner circumferential surface of the joint sleeve 5;
A disk-shaped center plate 12 coupled to one side on the center of the main plate 10 by padding;
A plurality of reinforcing members (14) coupled to be radially disposed toward the edge portion of the main plate (10) from the outer circumferential surface of the center plate (12) and screwed with the joint sleeve (5);
A sealing member (18) installed for watertight about the shaft joint portion between the end sleeve (3) and the joint sleeve (5); And
Watertight jig for hydraulic test of glass fiber reinforced plastic pipe, characterized in that it comprises a stopper key (20) which is provided for coupling rigidity to the shaft joint portion between the end sleeve (3) and the joint sleeve (5). The method according to claim 3,
It is characterized in that it further comprises a plurality of auxiliary reinforcing material 16 is coupled to extend along the thickness direction of the main plate 10 at the edge portion of the main plate 10, and screwed to the joint sleeve (5) Watertight jig for hydraulic test of glass fiber reinforced plastic piping. The method according to claim 1 or 3,
The reinforcing member 14 is a watertight jig for the hydraulic test of the glass fiber reinforced plastic pipe, characterized in that the radial bars are arranged radially at the same distance from each other based on the center of the main plate (10). The method according to claim 5,
The reinforcing member 14 is a watertight jig for the hydraulic test of the glass fiber reinforced plastic pipe, characterized in that to form a tapping hole (14a) for screwing on the outer peripheral surface of the edge portion. The method according to claim 1 or 3,
The auxiliary reinforcing material (16) for the hydraulic test of the glass fiber reinforced plastic pipe, characterized in that the rectangular bar arranged at equal intervals between the reinforcing material 14 with respect to the center of the main plate (10). Watertight jig. The method of claim 7,
The auxiliary reinforcing material (16) is a watertight jig for the hydraulic test of the glass fiber reinforced plastic pipe, characterized in that to form a tapping hole (16a) for screwing on the outer peripheral surface of the edge portion. The method according to claim 3,
The end sleeve (3) is a watertight jig for the hydraulic test of the glass fiber reinforced plastic pipe, characterized in that to form a groove of the concave cross section for the seating of the sealing member 18 on the outer peripheral surface. The method according to claim 3,
On the outer circumferential surface of the end sleeve 3 and the inner circumferential surface of the joint sleeve 5 corresponding thereto, grooves having a semicircular cross section for seating the stopper key 20 are respectively formed, and the joint sleeve 5 is formed of a stopper key ( 20) Watertight jig for hydraulic test of glass fiber reinforced plastic pipe, characterized in that to form a key insertion port (5a) for insertion. Watertightness is installed in the joint sleeve (5) coupled with the end sleeve (3) coupled to the front end of the GRP piping (1) for the hydraulic pressure test for the GRP pipe (1) installed in each unit block of the vessel As a hydraulic test method using a jig,
Inserting and fixing one end portion of the end sleeve 3 to one end portion of the GRP pipe 1;
Fixing one end portion of the joint sleeve (5) to an outer circumferential surface of the other end portion of the end sleeve (3);
Screwing the watertight jig on the inner circumferential surface of the other end of the joint sleeve (5); And
A pressure test method using a water pressure test jig for a water pressure test of a glass fiber reinforced plastic pipe, characterized in that it comprises a step of applying a predetermined pressure to the water pressure space (S) inside the sealed by the watertight jig. The method of claim 11,
The fixing of one end portion of the joint sleeve 5 with respect to the outer end surface of the other end portion of the end sleeve 3 may include installing the sealing member 18 and the stopper key 20 on the outer end surface of the other end portion of the end sleeve 3. Forming a groove for the groove, the groove 5b for installation of the stopper key 20 on the inner peripheral surface of the one end of the joint sleeve 5, and the joint sleeve (in a position in communication with the groove 5b) 5) A hydraulic pressure test method using a watertight jig for hydraulic test of glass fiber reinforced plastic pipe, characterized in that it comprises the step of forming a key insertion hole (5a) through.
KR1020120010618A 2012-02-02 2012-02-02 Watertight jig for testing water pressure of grp pipe, and method for testing water pressure of grp pipe using the same KR20130089339A (en)

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CN104122042A (en) * 2014-07-18 2014-10-29 哈尔滨电机厂有限责任公司 Pressure resistance testing method of large-diameter welding structure metal pipeline
CN105136580A (en) * 2015-08-22 2015-12-09 浙江鑫宙竹基复合材料科技有限公司 Detection method for determining short-time failure hydraulic pressure of bamboo composite pressure tube
CN104034492B (en) * 2014-06-04 2016-08-24 青岛中瑞泰软控技术有限公司 Hydraulic pressure test curve and parameter processing method
CN108151966A (en) * 2017-11-13 2018-06-12 吉林化工学院 A kind of water inspection tooling of quick detection pipelines of automobile air conditioner sealing performance
CN109342177A (en) * 2018-11-20 2019-02-15 大连理工大学 A kind of full-scale pipeline deep-sea complexity ocean environmental loads combination loading pilot system
CN110186749A (en) * 2019-05-24 2019-08-30 贵州航天天马机电科技有限公司 A kind of cylinder water test unit
KR20200008312A (en) 2018-07-16 2020-01-28 대우조선해양 주식회사 Plug device for hydro test of piping
CN116106116A (en) * 2023-04-13 2023-05-12 无锡市鼎麒新材料科技有限公司 Clamp for carbon fiber pipe pressure detection device
KR20240032450A (en) 2022-09-02 2024-03-12 이형구 Water pressure test device and control method of Ship-building and the ocean structure for piping

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034492B (en) * 2014-06-04 2016-08-24 青岛中瑞泰软控技术有限公司 Hydraulic pressure test curve and parameter processing method
CN104122042A (en) * 2014-07-18 2014-10-29 哈尔滨电机厂有限责任公司 Pressure resistance testing method of large-diameter welding structure metal pipeline
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