KR20170021691A - Universal variable dummy spool and ship having the smae - Google Patents

Universal variable dummy spool and ship having the smae Download PDF

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Publication number
KR20170021691A
KR20170021691A KR1020150116359A KR20150116359A KR20170021691A KR 20170021691 A KR20170021691 A KR 20170021691A KR 1020150116359 A KR1020150116359 A KR 1020150116359A KR 20150116359 A KR20150116359 A KR 20150116359A KR 20170021691 A KR20170021691 A KR 20170021691A
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KR
South Korea
Prior art keywords
pipe
flat plate
spool
inner pipe
outer pipe
Prior art date
Application number
KR1020150116359A
Other languages
Korean (ko)
Inventor
김인환
Original Assignee
대우조선해양 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR1020150116359A priority Critical patent/KR20170021691A/en
Publication of KR20170021691A publication Critical patent/KR20170021691A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B63B9/00—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

The present invention relates to a universal variable dummy spool capable of connecting a dummy spool to a plate instead of a flange and adjusting a length of a thread section so as to ease work and improve compatibility of a product, comprising: a circular flat plate provided inside a pipe and the pipe; an inner pipe installed at an inner side of the flat plate; and an outer pipe installed outside the inner pipe to allow the inner pipe to be moved left and right.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a universal variable dummy spool,

More particularly, the present invention relates to a universal variable dummy spool which connects a dummy spool connected to a pipe to a plate instead of a flange and enables adjustment of the length of the thread section, It is about a dummy spool.

Piping facilities for transporting fluids are provided in ships, buildings and plants.

In such a piping system, a plurality of pipes are connected in series or branched and piped.

However, the pipes of the above-mentioned piping equipment are not always kept unchanged, but they are repeatedly expanded and contracted by the temperature of the fluid and the temperature of the outside of the pipe, and the pressure or vibration . ≪ / RTI >

1, an expansion bellows pipe 20 is installed between the pipe 5 and the pipe 5 in order to offset the above-described deformation.

The expansion bellows pipe 20 is coupled with the pipe 5 to be able to transfer the fluid therein and to be able to expand and contract to absorb deformation and vibration of the pipe 5.

When the pipes 5 are installed on a ship or a plant, the pipes are installed directly on the ship or the plant, but the pipes 5 are assembled on the land, 10) are manufactured and then moved to a ship or a plant by a crane or the like.

However, when the pipe piping body 10 is moved as described above, the expansion bellows pipe 20 is excessively loaded and impacted, and the expansion bellows pipe 20, which is relatively expensive, may be damaged.

After the installation of the pipe piping body 10, it is tested whether there is a defect in the pipe piping body 10. At this time, the test is performed in a more severe environment than the normal operation condition. At this time, the expansion bellows pipe 20 ) May be damaged by excessive pressure.

2, the pipe piping body 10, which is manufactured on the land, is provided with a dummy bellows pipe 20 having the same size as that of the expansion bellows pipe 20 at the place where the expansion bellows pipe 20 is to be installed, Temporarily install a dummy spool.

The dummy spool 30 may be made of the same size as the expansion bellows pipe 20, and may be made of a steel material which is not stretchable but is resistant to impact and deformation.

That is, after the pipe piping body 10 provided with the dummy spool 30 instead of the expansion bellows pipe 20 is manufactured on the land, is transferred to a ship or a plant through a crane, and then the dummy spool 30 is removed An expansion bellows pipe (20) is installed.

Since the expansion bellows pipe 20 is not standardized in size but is customized to different sizes according to the types of the ship and piping pipe 10 to be mounted and the operating conditions and the installation position, (30) is also not standardized in size, and must be manufactured separately according to the size of the expansion bellows pipe (20).

Therefore, it is difficult to use it in the production of the other pipe piping body 10, so that it is required to be discarded after use, resulting in an increase in production cost and waste.

In addition, even if reuse is considered, it is bulky and difficult to store.

In addition, since the dummy spool 30 is heavy as a steel pipe, the crane must be mobilized even when it is demolished, so that the operation speed is low and there is a risk of occurrence of a safety accident, and the cost for work is increased.

Korean Patent Publication No. 10-2007-0056536 (published on June 4, 2007)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a dummy spool of a thread type that can adjust the length of a dummy spool, And a universal variable dummy spool that can be applied regardless of a flange specification.

Another object of the present invention is to provide a method of manufacturing a piping system that can be installed regardless of a piping size by fastening a flat plate to both pipes by bolts instead of a flange, thereby eliminating the need to separately produce drawings and utilizing existing surplus materials, Which is a general purpose variable dummy spool.

According to an aspect of the present invention, there is provided a universal variable dummy spool comprising: an inner pipe provided between pipings of both sides; and an inner pipe provided outside the inner pipe and capable of guiding the inner pipe to left and right An outer pipe, and a flat plate provided between the pipe and the inner pipe.

The inner pipe may be provided in each of the pipings on both sides and may be provided with a male screw acid on the outer diameter side.

The end portion of the inner pipe is formed to have the same diameter as the inner diameter of the outer pipe so as to be fastened to the outer pipe, and the other end of the inner pipe is formed to have the same diameter as the diameter of the pipe .

The outer pipe connects each of the inner pipes, and the inner pipe may be formed with a female screw so as to be fastened to the inner diameter of the inner pipe.

The flat plate is formed in a circular shape, and a plurality of bolt holes may be formed so as to be bolted to the pipe and the inner pipe.

The bolt holes may be formed concentrically so as to match the sizes of various pipes and the sizes of the inner pipes.

The flat plate may be formed in a circular shape and may have a diameter larger than the outer diameter of the pipe so as to be installed regardless of the size of the pipe.

A plurality of reinforcing bars of a bellows type may be installed on the flat plate and the outer pipe.

The reinforcing bar may be integrally provided on the inner side of the flat plate and the outer side of the outer pipe.

According to another aspect of the present invention, a plurality of inner pipes and outer pipes are threadedly coupled to the dummy spool so that the length of the dummy spool can be adjusted according to the left and right movement of the inner pipe, Which can be applied to all the flange specifications and the distance between the pipe surfaces.

As described above, according to the general-purpose variable dummy spool of the present invention, it is unnecessary to confirm the dimension of the dummy spool according to completion of the work in the field and to further revise the design.

In addition, the present invention has the effect of reducing lead time and waiting time in the field.

In addition, the present invention has the effect of being reusable when the dummy spool is removed due to valve wearing after completion of the work.

Further, according to the present invention, it is not necessary to produce a drawing for a dummy spool depending on whether or not the installation material of the valve type is stocked, and the existing surplus material can be utilized, and the material cost can be reduced.

1 is a perspective view showing a conventional pipe piping.
FIG. 2 is an exploded perspective view showing a state in which a dummy spool is coupled to the pipe piping body of FIG. 1 instead of an expansion bellows pipe.
3 is an exploded perspective view showing a general-purpose variable dummy spool according to the present invention.
4 is a perspective view showing a general-purpose variable dummy spool according to the present invention.
5 is a front view showing a general-purpose variable dummy spool according to the present invention.
6 is a sectional view showing a general-purpose variable dummy spool according to the present invention.
7 is a sectional view showing an operating state of the universal variable dummy spool according to the present invention.
8 is a front view showing another example of the general-purpose variable dummy spool according to the present invention.
9 is a front view showing still another example of the universal variable dummy spool according to the present invention.

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

FIG. 3 is a perspective view showing a general-purpose variable dummy spool according to the present invention, FIG. 4 is a perspective view showing a general-purpose variable dummy spool according to the present invention, FIG. 5 is a front view showing a general- FIG. 6 is a sectional view showing a general-purpose variable dummy spool according to the present invention, FIG. 7 is a sectional view showing an operating state of a general-purpose variable dummy spool according to the present invention, FIG. 8 is a cross- Fig. 9 is a front view showing still another example of the general-purpose variable dummy spool according to the present invention. Fig. 9 is a front view showing another example of the spool.

3 to 7, according to an aspect of the present invention, there is provided a universal variable dummy spool 200 used as a substitute for connecting a pipe 100 and for a hydro test, 210, an outer pipe 220, and a flat plate 230.

The inner pipe 210 is connected between the pipes 100 so as to connect the pipes 100 on the left and right sides.

That is, a plurality of inner pipes 210 are installed to be connected to the pipes 100 on both sides.

A male screw thread 211 is formed around the outer diameter of the inner pipe 210.

At this time, the male threads 211 formed on each of the inner pipes 210 are preferably formed in opposite directions.

The end of the inner pipe 210 on which the male thread 211 is formed is formed to have the same diameter as the inner diameter of the outer pipe 220 so that the inner pipe 210 can be fastened to the outer pipe 220.

The other end of the inner pipe 210 on which the male screw thread 211 is not formed is formed to have the same diameter as the diameter of the pipe 100 so that the inner pipe 210 can be fastened to the pipe 100.

That is, the end of the inner pipe 210 is formed to have the same diameter as the inner diameter of the outer pipe 220 so that the inner pipe 210 can be screwed into the outer pipe 220, The end portion is formed to have the same diameter as that of the pipe 100 so that the inner pipe 210 can be easily fixed to the pipe 100 with a bolt.

The outer pipe 220 is installed outside the inner pipe 210 and connects the inner pipe 210 connected to both pipes 100.

The female thread 211 of the inner pipe 210 is fastened to the inner diameter side of the outer pipe 220 so that the female thread 221 is formed to connect both inner pipes 210.

That is, the inner pipe 210 is inserted into both ends of the outer pipe 220, and the female thread 221 of the outer pipe 220 is engaged with the male thread 211 of the inner pipe 210, And the inner pipe 210 fastened to both sides of the outer pipe 220 by the male screw thread 211 are elastically and fastened from the outer pipe 220.

When the outer pipe 220 is coupled to the outside of the inner pipe 210 and the outer pipe 220 is rotated, the male threads 211 of the inner pipes 210 are formed in opposite directions The length of the dummy spool 200 can be adjusted while the inner pipes 210 are rotated in different directions according to the rotation of the outer pipe 220.

The flat plate 230 is installed between the pipe 100 and the inner pipe 210 and is formed in a circular shape identical to the outer shape of the pipe 100.

Meanwhile, the flat plate 230 is formed in a circular shape and can have a diameter larger than the outer diameter of the pipe 100 so as to be installed regardless of the size of the pipe 100.

Bolt holes 231 are formed in the flat plate 230 so as to be fastened to the pipe 100 and the inner pipe 210 with bolts.

The bolt holes 231 are formed in a plurality of concentric circles so as to fit the pipe 100 and the inner pipe 210 of various sizes.

That is, when the flat plate 230 is installed between the pipe 100 and the inner pipe 210, a plurality of bolt holes 231 are formed in the flat plate 230, so that the pipe 100 and the inner pipe 210, So that it can be installed in various piping 100 and the inner pipe 210 regardless of the size of the pipe.

8, a reinforcing bar 300 is installed on the flat plate 230 and the outer pipe 220 to maximize the stiffness of the dummy spool 200 connected to the pipe 100.

At this time, as the inner pipe 210 is moved left and right by the rotation of the outer pipe 220, the reinforcing bar 300 is installed in a bellows shape.

In addition, the reinforcing bar 300 is preferably provided on the flat plate 230 and the outer pipe 220 so as to uniformly maintain the bare strength.

The reinforcing bar 300 is integrally formed on the inner side of the flat plate 230 and the outer side of the outer pipe 220.

That is, a plurality of the reinforcing bars 300 are provided on the circumferential surfaces of the flat plate 230 and the outer pipe 220 at regular intervals, so that the flat plate 230 and the outer pipe 220 are uniformly pressed And the rotation of the outer pipe 220 can be smoothly performed.

9, a reinforcing bar 300 is installed on the inner side of the flat plate 230 and the outer pipe 220, and the connecting ring 310 is installed on the flat plate 230 and the outer pipe 220 A reinforcing bar (300) is detachably installed on the connection ring (310).

When the reinforcing bar 300 is detachably attached to the flat plate 230 and the outer pipe 220 so that the reinforcing bar 300 can be connected to the connecting ring 310. In order to increase the length of the dummy spool, When the flat plate 230 is connected to the reinforcing bar 300 of the outer pipe 220 and the length of the dummy spool 200 is short and the high bending strength is not needed, the reinforcing bar 300 can be detached, Can be attached and detached as needed, thereby improving the working efficiency.

Meanwhile, it is preferable that the dummy spool 200 according to the present invention is installed in a steel material, but it may be made of a hard synthetic resin material.

According to another aspect of the present invention, the dummy spool 200 is coupled to both ends of the outer pipe 220 and the inner pipe 210, and the inner pipe 210 is threaded into the outer pipe 220, The length of the dummy spool 200 can be adjusted by adjusting the inner pipe 210 while the inner pipe 210 is expanded and contracted on both sides in the outer pipe 220. The length of the inner pipe 210 and the length of the pipe 100 can be adjusted, It is possible to install the dummy spool 200 regardless of the size of the piping 100 by providing the circular flat plate 230 between the flange and the valve plate, .

That is, female threads 221 are formed on the inner diameter side of the outer pipe 220, male threads 211 are formed on the outer diameter side of the inner pipe 210 coupled to both ends of the outer pipe 220, The inner pipe 210 can be moved to the left and right from the outer pipe 220 according to the rotation of the outer pipe 220 while the inner pipe 210 is screwed into the inner pipe 210. Accordingly, It is possible to adjust the length of the dummy spool 200 and to provide a circular flat plate 230 having a plurality of bolt holes 231 between the pipe 100 and the inner pipe 210, It can be applied to all valve inter-plane distances and flange specifications and is applicable to all reusable vessels.

The operation of the general-purpose variable dummy spool according to the present invention will be described below.

A dummy spool 200 is provided between the piping 100 and the piping 100 for replacement of a valve and for a hydro test.

A circular flat plate 230 is bolted to the inside of the piping 100 on both sides.

At this time, since the plurality of bolt holes 231 are formed concentrically on the flat plate 230, the flat plate 230 can be installed regardless of the size of the pipe 100.

The inner pipe 210 is fastened to both flat plates 230 and the outer pipe 220 is fastened to the outer side of the inner pipe 210.

That is, the inner pipe 210 is screwed to both ends of the outer pipe 220.

The female thread 221 of the outer pipe 220 and the male thread 211 of the inner pipe 210 are engaged with each other so that the inner pipe 210 is coupled to the inside of the outer pipe 220.

Meanwhile, the male threads 211 of the inner pipe 210 coupled to the inner side of the outer pipe 220 are provided in opposite directions.

The inner pipe 210 is screwed to both ends of the outer pipe 220 so that the inner pipe 210 is screwed into the outer pipe 220 in the direction different from the inner pipe 211 in accordance with the rotation of the outer pipe 220, The left and right inner pipes 210 move in opposite directions to each other.

The inner pipe 210 fastened to both ends of the outer pipe 220 is moved left and right by rotating the outer pipe 220 so that the length of the dummy spool 200 is increased or decreased.

As the inner pipe 210 threadedly coupled to the outer pipe 220 is expanded and contracted, it is possible to connect the inner pipe 210 to the various pipes 100 of different sizes by using one dummy spool 200.

As described above, the present invention is not limited to the above-described specific preferred embodiments, and any person skilled in the art can make various modifications without departing from the gist of the present invention. It is to be understood that such changes and modifications are intended to fall within the scope of the appended claims.

100: Piping
200: Dummy spool
210: inner pipe
211: Mount Mt.
220: Outer pipe
221: Cancer thread
230: Reputation
231: Bolt hole
300: Receptacle
310: Connection ring

Claims (10)

A dummy spool used for replacing piping and for hydro testing,
A flat plate provided inside the pipe and the pipe;
An inner pipe installed at an inner side of the flat plate; And
An outer pipe installed outside the inner pipe to allow the inner pipe to move left and right;
Wherein the spool is a universal variable dummy spool. The method according to claim 1,
Wherein the flat plate is formed in a circular shape, and a plurality of bolt holes are formed to be fastened to the pipe and the inner pipe by bolts. 3. The method of claim 2,
Wherein the bolt holes are formed concentrically so as to match the sizes of the various pipes and the sizes of the inner pipes. The method according to claim 1,
Wherein the flat plate is installed at a diameter larger than the outer diameter of the pipe so that the flat plate can be installed with the pipe irrespective of the size of the pipe. The method according to claim 1,
Wherein a plurality of reinforcing bars of a bellows type are installed on the flat plate and the outer pipe. 6. The method of claim 5,
Wherein the reinforcing bar is integrally provided on the inner side of the flat plate and the outer side of the outer pipe. The method according to claim 1,
Wherein the inner pipe is provided with a plurality of pipings on both sides, and the inner pipe is formed with a male screw acid on the outer diameter side. 8. The method of claim 7,
The end portion of the inner pipe having the male thread is formed to have the same diameter as the inner diameter of the outer pipe so that the outer pipe can be fastened to the outer pipe and the other end of the inner pipe can be fastened to the pipe having various diameters. Wherein the spool is a spool. The method according to claim 1,
Wherein the outer pipe connects each of the inner pipes, and the inner diameter side of the outer pipe is formed with a female screw so that the inner diameter of the inner pipe can be fastened. A ship having a general-purpose variable dummy spool capable of adjusting the length of the piping according to any one of claims 1 to 9 and installed regardless of the piping size.
KR1020150116359A 2015-08-18 2015-08-18 Universal variable dummy spool and ship having the smae KR20170021691A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070056536A (en) 2005-11-30 2007-06-04 대우조선해양 주식회사 Jig for hydraulic test at the cargo line of ship

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070056536A (en) 2005-11-30 2007-06-04 대우조선해양 주식회사 Jig for hydraulic test at the cargo line of ship

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