Segmented folding pipe for ship

Abstract

According to the ship segmented folding pipe provided by the utility model, the coordinates of the pre-assembled pipeline at the segmented ports are fixed, and the design coordinate information of each port does not need to be searched, so that the installation precision can be quickly measured and checked, and the installation precision of the pre-assembled pipeline can be better controlled; the folding pipe is standardized, can be prefabricated and stored in advance, can be immediately used as required, is manufactured in a peak shifting manner, and is not influenced by the sectioned folding opportunity; before installation, trial assembly of solid pipe sections is not needed, the distance between positions of folded pipes is simply measured, direct receiving installation meeting precision is achieved, when distance deviation occurs, manufacturing is conducted after actual data are measured, and discarding or modification of prefabricated steel pipes does not exist.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship construction, and in particular relates to a ship segmented closing pipe. Background Art

[0002] In order not to affect the closing of sections, the pipeline cannot protrude from the edge of the section. Due to the problem of the docking accuracy of the hull sections, a certain margin will be designed at the port of the section, resulting in the inability to directly connect the pre-installed pipelines of the two sections. It is necessary to set a closing pipe between the two sections to connect the pipelines of the two sections. There are currently two ways to make the closing pipes between sections. One is to prefabricate the closing pipes in advance according to the theoretical design size, and the other is to measure the actual spacing of the pipelines after the sections are closed.

[0003] However, these two methods have the following defects:

[0004] Method 1: prefabricate steel pipes in advance according to the theoretical design size. When the segmented docking accuracy deviation is ≥10mm, the prefabricated steel pipes cannot be installed and need to be modified and remade. The modification rate of prefabricated closed pipes in this method reaches more than 30%;

[0005] Method 2: After the sections are closed, the actual spacing of the pipelines is measured and then the steel pipes are manufactured. The spacing of the closed pipes can be measured after the sections are loaded on the hull, and the steel pipes are manufactured. A large number of closed pipes are measured and manufactured, and the steel pipe manufacturing cycle is long, which affects the installation integrity and tightness inspection of the pipeline system.

[0006] In addition, the coordinates of the pre-installed pipes exiting the segmented ports are inconsistent, which is not conducive to the accurate measurement and monitoring of the segmented pre-installed pipes. Utility Model Content

[0007] In order to solve the technical problems in the prior art, the utility model provides a segmented closing pipe for a ship, the length of the segmented closing pipe is fixed, and the pipe material and pipeline accessories of the segmented closing pipe are of common specifications of ship pipelines.

[0008] Furthermore, the length of the segmented closed tube is fixed at 800 mm.

[0009] Furthermore, the pipe includes diameter, wall thickness and grade.

[0010] Furthermore, the pipeline accessories include flanges and sleeves.

[0011] Furthermore, on the basis of the fixed size, the closed pipe is surface treated according to the commonly used system to make a standard part.

[0012] Furthermore, the ends of the closure pipes are designed to have several pipe sections according to several positions from the edge of the hull segment, and the pipe ends are designed to be staggered;

[0013] The pre-installed pipelines in sections have only a few fixed coordinates from the section ports.

[0014] Furthermore, the ends of the combined pipes are designed at three positions of 300 mm, 400 mm and 500 mm from the edge of the hull segment.

[0015] Furthermore, the segmented pre-installed pipeline has only three fixed coordinates from the segmented ports.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The coordinates of the preinstalled pipelines at the segmented ports of the utility model are fixed, and there is no need to look up the design coordinate information of each port. The installation accuracy can be quickly measured and checked, and the installation accuracy of the preinstalled pipelines can be better controlled. The closed pipes are standardized, can be prefabricated in advance and kept in stock, and can be immediately taken out on demand and produced in staggered times without being affected by the timing of segmented closing. There is no need for trial installation of physical pipe sections before installation, and the spacing between the closed pipe positions can be simply measured. The pipes that meet the accuracy requirements can be directly taken out and installed. When spacing deviation occurs, the actual data can be measured and then produced, and there is no scrapping and modification of prefabricated steel pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a working schematic diagram of the utility model. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1 This application proposes a ship segmented closure pipe, which mainly includes the following contents:

[0021] 1. "Set the size" of the closed tube

[0022] The length of the combined pipe section is fixed (such as 800mm, etc.), and the pipe material (diameter, wall thickness, grade) and pipeline accessories (flange, sleeve) all adopt the common specifications of ship pipelines.

[0023] 2. Based on the fixed size, the closed pipe is made into standard parts according to the commonly used system surface treatment.

[0024] Different ship piping systems have different requirements for the internal surface treatment and coating of steel pipes. Through statistical analysis of the piping layout of conventional ship systems, they are mainly divided into systems with four media: oil, seawater, fresh water, and gas. The corresponding surface treatments are: pickling and phosphating, lubricating oil, hot-dip galvanizing, pickling and phosphating, and hot-dip galvanizing. The combined pipes of the above-mentioned pipe systems account for more than 75% of the total number of combined pipes on a single ship. They are designed as universal standard parts, manufactured and stored in advance, and can be used immediately according to specifications to solve the problem of concentrated load in the production of combined pipes and achieve staggered and balanced production of combined pipes.

[0025] 3. Close the pipe and “fix the position”

[0026] The ends of the closure pipes are designed at several positions from the edge of the hull segment (such as 300mm / 400mm / 500mm), and the staggered design of the pipe ends is conducive to better layout of the pipelines in a small space. The pre-installed pipelines in the segments have only fixed (three) several coordinates from the segment ports, which is conducive to the control of the segment pre-installation accuracy.

[0027] In summary, the above are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereto. All equivalent changes and modifications made according to the patent scope of the present utility model and the contents of the specification are within the scope covered by the patent of the present utility model.

Claims

1. A ship segmented closure pipe, characterized in that: The length of the segmented closed pipe is fixed, and the pipe material and pipe accessories of the segmented closed pipe all adopt common specifications of ship pipelines.

2. The closed tube according to claim 1, characterized in that: The length of the segmented closed tube is fixed at 800 mm.

3. The closed tube according to claim 1, characterized in that: The pipe material includes diameter, wall thickness and grade.

4. The closed tube according to claim 1, characterized in that: The pipeline accessories include flanges and sleeves.

5. The closed tube according to claim 1, characterized in that: On the basis of the fixed size, the closed pipe is made into a standard part by surface treatment according to the commonly used system.

6. The closed tube according to claim 1, characterized in that: The ends of the closure pipes are designed in several sections according to the distance from the edge of the hull segment, and the pipe ends are staggered; The pre-installed pipelines in sections have only a few fixed coordinates from the section ports.

7. The closed tube according to claim 6, characterized in that: The ends of the combined pipes are designed at three positions of 300mm, 400mm and 500mm from the edge of the hull segment.

8. The closed tube according to claim 7, characterized in that: The pre-installed pipelines in sections have only three fixed coordinates from the section ports.

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