JPS6249236B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing piping in the construction of a hull block in which hydraulic pipes for various valves and the like are arranged.

Conventionally, in this type of ship, joints between hull blocks having a large number of hydraulic pipes and the like were constructed as shown in FIGS. 1 and 2 a and b. That is, when connecting block a, which has various valves 10 ₁ to 10 _o , and block b, which has hydraulic pipes 11 ₁ to 11 _o , the hydraulic pipes 10 ₁ to 10 _o in each block a and b are connected. , 11 ₁ to 11 _o , to prevent both pipes from interfering with each other and becoming an obstacle to block alignment.
It is always retracted from the block joint surface, and after each block a and b are assembled, a short pipe 12 is inserted between the hydraulic pipes 10 ₁ - 10 _o and 11 ₁ - 11 _o .
₁ ~ 12 _o and pipe connection sleeve 13 ₁ ~ 13 _o on top,
It was used at the bottom and connected by welding etc.

However, the hydraulic pipes 10 ₁ to 10 _o , 11 ₁
Since pipe connecting sleeves 13 1 to 13 _o are used at two locations above and below the short pipes 12 ₁ to 12 _o to connect with the short pipes 12 ₁ to 11 _o , two pipe connecting sleeves are required for each system, and the installation piping is Not only did the construction require a large amount of man-hours, but it also had the disadvantage of requiring dangerous work at heights, as approximately 50% of the pipe connections in the ship's hull were located below deck.

The present invention improves the conventional construction method described above,
The end faces of the hydraulic pipes, etc. installed on each block are made to protrude from the block joint surface, and a cap is placed on the tip to prevent interference between the pipes. After each block is joined, the pipes are connected by cutting the overlapping dimension of the pipes. ,
This invention provides a piping method for constructing a hull block with the aim of reducing the number of pipe connection sleeves and simplifying the pipe connection work.

Embodiments according to the present invention will be described below with reference to FIGS. 3 to 4.
This will be explained in detail with reference to the drawings. In the figure,
A and B are hull blocks. For example, the hydraulic pipes 1 ₁ to 1 _o of the upper hull block A are arranged slightly retracted from the block joint surface, and the hydraulic pipes 2 ₁ to 2 _o of the lower hull block B are arranged in the blocks. It is arranged so as to protrude from the joint surface. These hydraulic pipes 1 ₁ - 1 _o and hydraulic pipes 2 ₁ - 2 _o are retracted from their ends at a distance that maintains their flexibility (for example, about 1 m for hydraulic pipes of 20 mmφ to 100 mmφ), and then the bracket 2 is inserted.
It is attached to blocks A and B via pins 0 and 21. The hydraulic pipes 1 ₁ - 1 _o and 2 ₁ - 2 _o attached to the brackets 20 and 21 are arranged so that the pipes connected to each other face each other on the same axis. When these are joined, the hydraulic pipes 1 ₁ to 1 _o and 2 ₁ to 2 _o are bent and overlapped alternately as will be described later.

The tip openings of the hydraulic pipes 1 ₁ - 1 _o and 2 ₁ - 2 _o of each of the blocks A and B are covered with pointed caps 3 ₁ - 3 _o and 4 ₁ - 4 _o , which have sharpened tips.
This prevents the tube ends from colliding with each other when blocks A and B are joined. In other words, the tip caps 3 ₁ - 3 _o and 4 ₁ - 4 _o come into contact with each other and rub against each other, thereby bending the hydraulic pipes 1 ₁ - 1 _o and 2 ₁ - 2 _o , thereby preventing the pipe ends from colliding with each other. .

Here, the hydraulic pipes 1 ₁ disposed in the block A
~1 _o is retracted about 200 mm from the block joint surface and attached to the bracket 20, and the hydraulic pipes ₂₁ ~ 2 _o arranged on block B are installed on the bracket 21 so as to protrude about 300 mm from the block joint surface, and each pipe is Pointed caps 3 ₁ - 3 _o and 4 ₁ - 4 _o placed on the ends
This is a transparent nylon hose or the like cut diagonally and fitted, and the diagonal cut end is heated and crimped.

Therefore, when the blocks A and B are joined, the hydraulic pipes ₁₁ to 1o and ₂₁ to _2o collide with each other due to the point caps ₃₁ to _3o and _{41 to 4o} , causing damage. They are placed alternately overlapping each other by about 100mm without any overlap. Therefore, after joining blocks A and B, remove each tip cap, cut out a section of about 100 mm that overlaps each other, fit the pipe connecting sleeves ₅₁ to _5o into the pipe joint, and bend by overlapping them. Hydraulic pipes 1 ₁ to 1 _o and 2
₁ to 2 _o are returned to a coaxial state and connected by welding.

In addition, when joining the above-mentioned block A and block B, the hydraulic pipes ₂₁ to _2o ( ₁₁ to _1o ) are connected between the pair of pipes on the side of the hydraulic pipes ₁₁ to _1o ( _{21 to 2o} ). Even if two or more side pipes try to enter, the hydraulic pipes 1 ₁ to 1
Since _o and 2 ₁ to 2 _o bend and escape from each other, two or more tubes will not collide or be forcibly deformed when two or more tubes are sandwiched between a pair of tubes. Therefore, the tip caps 3 ₁ - 3 _o and 4 ₁ - 4 _o only have to function to avoid collisions between the tube ends, and can be oriented in any direction as shown in Fig. 3 without having to make the cut ends constant. You can set it facing the other direction. That is, the cap may have any shape as long as it has a pointed tip, such as a conical shape.

Incidentally, by alternately shifting the cutting positions of adjacent tubes, the operation of connecting the tubes is greatly simplified.

As described in detail above, the piping construction method for building a hull block according to the present invention eliminates the need for short pipes for on-site alignment of the hull block joints, and allows the overlapping of piping at the hull block joints to be planned in advance to ensure that each hull After joining the blocks, cut the overlapping dimensions of the pipes, fit one pipe connection sleeve into each system,
The pipes are connected by welding, and the number of pipe connection sleeves is halved compared to the conventional on-site construction method, which greatly reduces material costs and man-hours. In addition, since the tube ends are covered with pointed caps, the tubes do not interfere with each other when the hull blocks are joined, and this serves to prevent foreign matter from entering the tubes until the tubes are connected.

Further, each tube end connecting portion is cut on site after the hull blocks are joined to only the overlapping dimensions, so that accurate finishing can be achieved.

[Brief explanation of the drawing]

1 to 2 a and b are explanatory diagrams showing a conventional construction method, and FIGS. 3 to 4 are explanatory diagrams showing a construction method according to the present invention. In the drawings, 1 ₁ to 1 _o , 2 ₁ to 2 _o are hydraulic pipes, and 3 _1
3o , ₄₁ to _4o are pointed caps, ₅₁ to _5o are pipe connection sleeves, and A and B are hull blocks.

Claims (1)

[Claims] 1. Cover the ends of both pipes in the hull block that are joined at the block joint surface with pointed caps,
The piping of one hull block is slightly retracted from the joint surface of the block, and the piping of the other hull block is protruded from the joint surface of the block, so that each piping overlaps with the other. A piping construction method for building a hull block, characterized in that after joining, the overlapping portions of the pipe ends are cut and the pipes are connected to each other.