Method for checking installation precision of ship body segmented pipe

Abstract

The invention relates to the technical field of ships, and discloses a ship body section pipe installation precision inspection method, which comprises the following steps that a ship body section pipe installation precision inspection table is made according to ship body section design parameters, and the ship body section pipe installation precision inspection table comprises positioning parameters of ship body section pipes. And measuring the processed ship body section, and determining the actual position parameter of the ship body section pipe. And comparing the positioning parameter of the ship body section pipe with the actual position parameter of the ship body section pipe, and judging whether the installation precision of each pipe of the ship body section meets the design requirement or not. According to the method for checking the installation precision of the ship body segmented pipe, the efficiency of checking the installation precision of the ship body segmented pipe can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and particularly to a method for inspecting the installation accuracy of pipes on a hull section. Background Art

[0002] During the shipbuilding process, a large number of pipes need to be pre-installed on the section in advance. After the pipes are pre-installed on the section, they are hoisted and mated with the pipe systems of the corresponding sections. The installation accuracy of the pipe system at the mating joint directly affects whether the subsequent pipe systems can be smoothly mated and whether there is interference between the pipe systems during the hoisting process, affecting the hoisting. Therefore, it is necessary to measure the installation accuracy of the pipes at the mating joint to ensure that its installation accuracy meets the requirements.

[0003] Currently, the installation accuracy of the pipe system is checked by converting according to the installation drawing and the small ticket drawing. The three-dimensional coordinates are given on the pipe system installation drawing with the frame number, center line, and deck as references for pipe system installation. Limited by the on-site construction conditions, the references corresponding to the three-dimensional coordinates cannot be directly used during the pipe system installation process. Usually, the three-dimensional coordinates are converted into positioning distances that can be directly used in construction. The three-direction coordinate distances are converted to the hull structure closest to the pipe, and then the installation accuracy of the pipe is judged by the distance from the pipe to the hull structure (the hull structure includes the wall plate, bulb flat steel, inner plate, main deck, etc.). However, the process of converting three-dimensional coordinates is complex. If the three-dimensional coordinates are used as the content for checking the installation accuracy of the pipe system, each pipe corresponds to a small ticket drawing (the small ticket drawing includes the installation coordinates of the pipe and dimension information, etc.), the process is too complex, and the efficiency is too low to meet the current production rhythm. Therefore, after the pipe system is pre-installed, a large number of pipe systems with poor installation accuracy flow directly into the next process without being inspected, and the problems are only exposed during the subsequent hoisting or general assembly stage construction, resulting in rework. The rectification work is complex, with a high difficulty, and the construction is difficult. If the installation accuracy deviation is too large, it is necessary to carry out cutting treatment, remove the pipe clamps or pipe supports, and replace or modify the pipes. At the same time, it is necessary to carry out re-welding and grinding, consuming a large amount of labor costs.

[0004] In view of this, a sectional pipe installation accuracy inspection form is needed to improve the measurement efficiency and ensure that the installation accuracy of the pipes can meet the installation requirements.

[0005] Currently, the inspection method for pipe installation positioning: Determine the three-dimensional coordinates of the sectional structure according to the installation drawing of the pipe (X, Y, and Z are respectively converted into FR, CL, and H for representation. For example, as follows Figure 1As shown in the three-dimensional coordinates of the pipe orifice of AP254-9, if its installation accuracy needs to be checked, it is necessary to find the hull structural wall panels corresponding to FR85, CL, and 8H respectively. Then, taking these wall panels as the reference, measure the vertical distances between X, Y, and Z, and compare them with -387, -15490, and 460 respectively to determine the installation accuracy of the pipe system. Find the reference structure, and then convert the corresponding structure reference according to the three-dimensional coordinates of the pipe small ticket drawing to calculate the corresponding installation distance of the pipe on the structure. The distances in the three directions of length, width, and height need to be converted, and then measure the distances in these three directions one by one.

[0006] Problems existing in the existing installation method:

[0007] 1. For one hull structural section, several installation drawings are required. There are at least dozens and at most hundreds of small ticket drawings (one small ticket drawing for one pipe). Selecting the small ticket drawings of the pipes to be inspected will consume a lot of time.

[0008] 2. It is impossible to directly see the distance between the pipe and the hull structure. It is necessary to use the installation drawing and the small ticket drawing for conversion, and the hull structures corresponding to different pipes are also very different. The detection process is too complex and the practicability is too poor.

[0009] Therefore, there is an urgent need for a method for checking the installation accuracy of pipes in a hull section to solve the above problems. Summary of the Invention

[0010] The purpose of the present invention is to provide a method for checking the installation accuracy of pipes in a hull section to improve the efficiency of checking the accuracy of pipes in a hull section.

[0011] To achieve this purpose, the present invention adopts the following technical solutions:

[0012] A method for checking the installation accuracy of pipes in a hull section includes:

[0013] Making a pipe installation accuracy inspection form for a hull section according to the design parameters of the hull section. The pipe installation accuracy inspection form for a hull section includes the positioning parameters of the pipes in the hull section;

[0014] The positioning parameters of the pipes in the hull section include: the first positioning distance of each pipe at the front end of the hull section along the first direction from the first positioning reference plane, the second positioning distance along the second direction from the second positioning reference plane, and the third positioning distance along the third direction from the third positioning reference plane. It also includes the fourth positioning distance of each pipe at the rear end of the hull section along the first direction from the fourth positioning reference plane, the fifth positioning distance along the second direction from the fifth positioning reference plane, and the sixth positioning distance along the third direction from the sixth positioning reference plane;

[0015] The first direction is the front - rear direction of the hull section, the second direction is the left - right direction of the hull section, and the third direction is the height direction of the hull section;

[0016] Measure the processed hull section to determine the actual position parameters of the pipes in the hull section. The actual position parameters of the pipes in the hull section include: the first measurement distance of each pipe at the front end of the hull section along the first direction from the first positioning reference plane, the second measurement distance along the second direction from the second positioning reference plane, and the third measurement distance along the third direction from the third positioning reference plane. It also includes the fourth measurement distance of each pipe at the rear end of the hull section along the first direction from the fourth positioning reference plane, the fifth measurement distance along the second direction from the fifth positioning reference plane, and the sixth measurement distance along the third direction from the sixth positioning reference plane;

[0017] Compare the positioning parameters of the pipes in the hull section with the actual position parameters of the pipes in the hull section to determine whether the installation accuracy of each pipe in the hull section meets the design requirements.

[0018] As an improvement to the above - mentioned technical solution, the installation accuracy inspection form for the pipes in the hull section also includes the numbers of each pipe at the front end of the hull section and the numbers of each pipe at the rear end of the hull section.

[0019] As an improvement to the above - mentioned technical solution, the installation accuracy inspection form for the pipes in the hull section also includes the front - view Figure 2 drawing of the hull section and the rear - view Figure 2 drawing of the hull section. The front - view Figure 2 drawing of the hull section is marked with the numbers of each pipe at the front end of the hull section, and the rear - view Figure 2 drawing of the hull section is marked with the numbers of each pipe at the rear end of the hull section.

[0020] As an improvement to the above - mentioned technical solution, the front - view Figure 2 drawing of the hull section is also marked with the pipe diameters of each pipe at the front end of the hull section, and the rear - view Figure 2 drawing of the hull section is also marked with the pipe diameters of each pipe at the rear end of the hull section.

[0021] As an improvement to the above - mentioned technical solution, making the installation accuracy inspection form for the pipes in the hull section according to the design parameters of the hull section includes:

[0022] Establish a 3D model of the hull section in 3D software according to the design parameters of the hull section;

[0023] Establish the front - view Figure 2 drawing of the hull section and the rear - view Figure 2 drawing of the hull section through the 3D model of the hull section, and make markings on the front - view Figure 2 drawing of the hull section and the rear - view Figure 2 drawing of the hull section.

[0024] As an improvement to the above technical solution, the first positioning reference plane is the end face of the front joint of the hull section, the fourth positioning reference plane is the end face of the rear joint of the hull section, the second positioning reference plane is the side face of the front vertical structural wall plate of the hull section, the fifth positioning reference plane is the side face of the rear vertical structural wall plate of the hull section, the third positioning reference plane is the side face of the front horizontal structural wall plate of the hull section, and the sixth positioning reference plane is the rear horizontal structural wall plate of the hull section.

[0025] As an improvement to the above technical solution, the pipe installation accuracy inspection form for the hull section includes a first inspection form and a second inspection form. The first positioning distances of each pipe at the front of the hull section from the first positioning reference plane in the first direction and the fourth positioning distances of each pipe at the rear of the hull section from the fourth positioning reference plane in the first direction are marked on the first inspection form. The second positioning distances of each pipe at the front of the hull section from the second positioning reference plane in the second direction, the third positioning distances of each pipe at the front of the hull section from the third positioning reference plane in the third direction, the fifth positioning distances of each pipe at the rear of the hull section from the fifth positioning reference plane in the second direction, and the sixth positioning distances of each pipe at the rear of the hull section from the sixth positioning reference plane in the third direction are marked on the second inspection form.

[0026] As an improvement to the above technical solution, by comparing the positioning parameters of the pipes in the hull section with the actual position parameters of the pipes in the hull section, it is determined whether the installation accuracy of each pipe in the hull section meets the design requirements, including:

[0027] Calculating the first deviation value between the first positioning distance and the first measured distance of each pipe at the front of the hull section, the second deviation value between the second positioning distance and the second measured distance, and the third deviation value between the third positioning distance and the third measured distance, and determining whether the first deviation value, the second deviation value, and the third deviation value of each pipe at the front of the hull section exceed the design deviation range;

[0028] Calculating the fourth deviation value between the fourth positioning distance and the fourth measured distance of each pipe at the rear of the hull section, the fifth deviation value between the fifth positioning distance and the fifth measured distance, and the sixth deviation value between the sixth positioning distance and the sixth measured distance, and determining whether the fourth deviation value, the fifth deviation value, and the sixth deviation value of each pipe at the front of the hull section exceed the design deviation range.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] The method for inspecting the installation accuracy of pipes in a hull section of the present invention converts the three-dimensional coordinates for the precision positioning of the pipe system in the hull section into positioning distances to the first positioning reference plane, the second positioning reference plane, the third positioning reference plane, the fourth positioning reference plane, the fifth positioning reference plane, and the sixth positioning reference plane. By measuring the completed hull section, the measured distances corresponding to the respective positioning distances can be obtained. Thus, by comparing the respective positioning distances and the measured distances, it is possible to determine whether the installation accuracy of each terminal meets the requirements. The present invention uses the first positioning reference plane, the second positioning reference plane, and the third positioning reference plane as the three-dimensional positioning reference planes for the pipes at the front end of the hull section, and uses the fourth positioning reference plane, the fifth positioning reference plane, and the sixth positioning reference plane as the three-dimensional positioning reference planes for the pipes at the rear end of the hull section. This greatly reduces the number of positioning reference planes, is beneficial to improving the efficiency of inspecting the pipe accuracy of the hull section, and enables the positioning parameters of each pipe to be uniformly marked on the inspection table for the installation accuracy of the pipes in the hull section, making the positioning parameters more intuitive and facilitating the progress of the inspection operation, further improving the efficiency of inspecting the pipe accuracy of the hull section. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the first inspection table provided by an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of the second inspection table provided by an embodiment of the present invention.

[0033] In the figure:

[0034] 10. Overall front view of the hull section; 101. Partially enlarged view of the pipe system area at the front end of the hull section;

[0035] 20. Overall rear view of the hull section; 201. Partially enlarged view of the pipe system area at the rear end of the hull section. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following will further describe in detail the specific embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0037] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include contact between the first and second features through additional features therebetween rather than direct contact. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly under and obliquely under the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0039] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] As Figure 1 shown, this embodiment provides a method for inspecting the installation accuracy of pipes on a hull section, which is used for inspecting the installation accuracy of each pipe on the hull section, and includes:

[0041] Making a hull section pipe installation accuracy inspection form according to the hull section design parameters, and the hull section pipe installation accuracy inspection form includes the positioning parameters of the hull section pipes;

[0042] The positioning parameters of the hull section pipes include: the first positioning distance of each pipe at the front end of the hull section along the first direction from the first positioning reference plane, the second positioning distance along the second direction from the second positioning reference plane, and the third positioning distance along the third direction from the third positioning reference plane, and also include the fourth positioning distance of each pipe at the rear end of the hull section along the first direction from the fourth positioning reference plane, the fifth positioning distance along the second direction from the fifth positioning reference plane, and the sixth positioning distance along the third direction from the sixth positioning reference plane;

[0043] The first direction is the front-rear direction of the hull section, the second direction is the left-right direction of the hull section, and the third direction is the height direction (i.e., the up-down direction) of the hull section;

[0044] Measure the hull section to determine the actual position parameters of the pipes in the hull section. The actual position parameters of the pipes in the hull section include: the first measurement distance of each pipe at the front end of the hull section along the first direction, the second measurement distance along the second direction from the second positioning reference plane, and the third measurement distance along the third direction from the third positioning reference plane. It also includes the fourth measurement distance of each pipe at the rear end of the hull section along the first direction, the fifth measurement distance along the second direction from the fifth positioning reference plane, and the sixth measurement distance along the third direction from the sixth positioning reference plane;

[0045] Compare the positioning parameters of the pipes in the hull section with the actual position parameters of the pipes in the hull section to determine whether the installation accuracy of each pipe in the hull section meets the design requirements.

[0046] The method for inspecting the installation accuracy of the pipes in the hull section provided in this embodiment converts the three-dimensional coordinates of the pipe system accuracy positioning in the hull section into the positioning distances to the first positioning reference plane, the second positioning reference plane, the third positioning reference plane, the fourth positioning reference plane, the fifth positioning reference plane, and the sixth positioning reference plane. By measuring the processed hull section, the measurement distances corresponding to each positioning distance can be obtained. Thus, by comparing each positioning distance with the measurement distance, it can be determined whether the installation accuracy of each terminal meets the requirements. In this embodiment, the first positioning reference plane, the second positioning reference plane, and the third positioning reference plane are used as the three-dimensional positioning reference planes for each pipe at the front end of the hull section, and the fourth positioning reference plane, the fifth positioning reference plane, and the sixth positioning reference plane are used as the three-dimensional positioning reference planes for each pipe at the rear end of the hull section, which greatly reduces the number of positioning reference planes, is conducive to improving the efficiency of inspecting the accuracy of the pipes in the hull section, and enables the positioning parameters of each pipe to be uniformly marked on the installation accuracy inspection form of the pipes in the hull section, making the positioning parameters more intuitive and facilitating the progress of the inspection operation, further improving the efficiency of inspecting the accuracy of the pipes in the hull section.

[0047] Furthermore, the installation accuracy inspection form of the pipes in the hull section also includes the numbers of each pipe at the front end of the hull section and the numbers of each pipe at the rear end of the hull section, which is convenient for distinguishing each pipe and further facilitating the progress of the inspection operation.

[0048] Furthermore, the installation accuracy inspection form of the pipes in the hull section also includes the front view Figure 2 drawing of the hull section and the rear view Figure 2 drawing of the hull section. The front view Figure 2 drawing of the hull section is marked with the numbers of each pipe at the front end of the hull section, and the rear view Figure 2 drawing of the hull section is marked with the numbers of each pipe at the rear end of the hull section. By setting the front view Figure 2 drawing of the hull section and the rear view Figure 2The two-dimensional drawings make the positions of the pipes and various positioning parameters more intuitive, facilitating the inspection operator to quickly obtain and compare the positioning information, and also facilitating the operator to find the corresponding pipes and positioning reference planes on the processed hull section with reference to the two-dimensional drawings.

[0049] Furthermore, the front view of the hull section Figure 2 The two-dimensional drawing also marks the diameters of the pipes at the front end of the hull section. The rear view of the hull section Figure 2 The two-dimensional drawing also marks the diameters of the pipes at the rear end of the hull section. In this embodiment, the second positioning distance, the third positioning distance, the fifth positioning distance, and the sixth positioning distance are all the distances from the center of the pipe end face to the positioning reference plane.

[0050] In this embodiment, the front view of the hull section Figure 2 The two-dimensional drawing includes the overall front view 10 of the hull section and the partial enlarged view 101 of the pipe system area at the front end of the hull section. The overall front view 10 of a certain hull section is also the front view of the hull section. The partial enlarged view 101 of the pipe system area at the front end of the hull section is a partial enlarged view of the area with pipes on the overall front view 10 of the hull section. The rear view of the hull section Figure 2 The two-dimensional drawing includes the overall rear view 20 of the hull section and the partial enlarged view 201 of the pipe system area at the rear end of the hull section. The overall rear view 20 of a certain hull section is also the rear view of the hull section. The partial enlarged view 201 of the pipe system area at the rear end of the hull section is a partial enlarged view of the area with pipes on the overall rear view 20 of the hull section.

[0051] Optionally, the first positioning reference plane is the end face of the front-end joint of the hull section, the fourth positioning reference plane is the end face of the rear-end joint of the hull section, the second positioning reference plane is the side face of the front-end vertical structural wall panel (i.e., the structural wall panel extending vertically), the fifth positioning reference plane is the side face of the rear-end vertical structural wall panel of the hull section, the third positioning reference plane is the side face of the front-end horizontal structural wall panel (i.e., the structural wall panel extending horizontally), and the sixth positioning reference plane is the rear-end horizontal structural wall panel of the hull section. The vertical structural wall panel and the horizontal structural wall panel in this embodiment are both strong structural wall panels. The selection of the second positioning reference plane, the third positioning reference plane, the fifth positioning reference plane, and the sixth positioning reference plane follows the principle of "nearest, using the strong structural wall panel as the reference". "Nearest" means relatively close to the pipe system, which is beneficial to on-site actual measurement and can reduce measurement errors to a certain extent. The strong structural wall panel is not easily deformed, and the relative measurement accuracy is more accurate. The accuracy in the ship length direction of the pipe system uses the joint of the section as the reference. The distances mentioned in this embodiment are all clearance distances and do not include the plate thickness, which is convenient for on-site measurement. Not including the plate thickness means using the side face of the structural wall panel close to the pipe system as the positioning reference plane.

[0052] Optionally, the hull block pipe installation accuracy inspection form includes a first inspection form and a second inspection form. The first positioning distances of each pipe at the front end of the hull block along the first direction from the first positioning reference plane and the fourth positioning distances of each pipe at the rear end of the hull block along the first direction from the fourth positioning reference plane are marked on the first inspection form. The second positioning distances of each pipe at the front end of the hull block along the second direction from the second positioning reference plane, the third positioning distances of each pipe at the front end of the hull block along the third direction from the third positioning reference plane, the fifth positioning distances of each pipe at the rear end of the hull block along the second direction from the fifth positioning reference plane, and the sixth positioning distances of each pipe at the rear end of the hull block along the third direction from the sixth positioning reference plane are marked on the second inspection form.

[0053] Optionally, compare the positioning parameters of the hull block pipes with the actual position parameters of the hull block pipes to determine whether the installation accuracy of each pipe of the hull block meets the design requirements, including:

[0054] Calculate the first deviation value between the first positioning distance and the first measured distance of each pipe at the front end of the hull block, the second deviation value between the second positioning distance and the second measured distance, and the third deviation value between the third positioning distance and the third measured distance, and determine whether the first deviation value, the second deviation value, and the third deviation value of each pipe at the front end of the hull block exceed the design deviation range;

[0055] Calculate the fourth deviation value between the fourth positioning distance and the fourth measured distance of each pipe at the rear end of the hull block, the fifth deviation value between the fifth positioning distance and the fifth measured distance, and the sixth deviation value between the sixth positioning distance and the sixth measured distance, and determine whether the fourth deviation value, the fifth deviation value, and the sixth deviation value of each pipe at the front end of the hull block exceed the design deviation range. If the deviation value of a pipe exceeds the design deviation range, it is determined that the installation accuracy of the pipe does not meet the standard.

[0056] Optionally, making the hull block pipe installation accuracy inspection form according to the design parameters of the hull block includes:

[0057] Establish a 3D model of the hull block in 3D software according to the design parameters of the hull block. It should be noted that since a 3D model is generally made during the hull design stage, the step of establishing the 3D model is one of the steps in the hull design and construction, so the establishment of the 3D model will not additionally increase the workload of the staff;

[0058] Establish the front view Figure 2 drawing of the hull block and the rear view Figure 2 drawing of the hull block through the 3D model of the hull block, and make markings on the front view Figure 2 drawing of the hull block and the rear view Figure 2 drawing of the hull block.

[0059] The 3D software used in this embodiment is DACS (Dimensional & Accuracy Control System). In other embodiments, other types of 3D software can also be used.

[0060] In this embodiment, the front view Figure 2 drawing of the hull section and the rear view Figure 2 drawing of the hull section are established through the 3D model of the hull section. Figure 2 drawing of the hull section and the rear view Figure 2 drawing of the hull section are marked, including:

[0061] S1. Import the hull section model into the software through the DACS software.

[0062] S2. Click on the 2D view to appear the 2D report options, and select the required report according to actual needs. After selecting the report template and clicking OK, the 2D view interface is created. Then click on "Capture 2D Data" to capture the cross-section of the 3D model to the 2D report in the 2D view for operation. For example, capture the overall rear view of this section and the pipe model (the overall rear view 20 of the hull section). Through the drawing function area, various information can be edited on the 2D report. First, mark the direction of the captured 3D model and the coordinates in the length direction (the length direction of the hull section) of the joint (such as FR155 - 150 in the rear view). Then, circle the pipes on this section opening with a box and use "detail" Figure I to refer to this area. Then, cut out the "detail" Figure I area separately from the 3D model and enlarge it to an appropriate size to form a partial enlarged view 201 of the pipe system area at the rear end of the hull section. Then, mark the pipe number and pipe diameter of each pipe in this area according to the drawing, and use the codes A1 and A2 to refer to this pipe (A represents the rear opening, 1 represents the pipe serial number, F represents the front opening, P represents the left opening, S represents the right opening). Then, draw a table to mark the theoretical distance (each positioning distance) from the pipe orifice of each pipe to the joint of the section, and create a filling area for the actual measurement data and deviation value below the theoretical distance. The actual measurement data (i.e., each measurement distance) and deviation value are the actual data filled in after actual measurement (deviation value = actual measurement data - theoretical data). The drawing methods for the front opening and rear opening of the hull section are the same.

[0063] S5. Add another 2D report to mark the installation distances of the pipes in the width and height directions corresponding to the hull structure. In the 3D view, through the marking function, mark the center of the pipe, as well as the reference points of the structure in the width and height directions corresponding to the pipe (the selected hull structure wall panels should correspond to vertical and horizontal strong structure wall panels).

[0064] Return to the two-dimensional report and display the marked points of the pipe center and the structural reference points. Pull the distance from the pipe center to the structural reference point through the linear distance, represent the markings in the width and height directions with two separate diagrams, and identify the data of the reference points.

[0065] Through the above steps, the production of the first inspection form and the second inspection form for the hull section can be completed.

[0066] In summary, the embodiment of the present invention provides a method for inspecting the installation accuracy of pipes in a hull section. By comparing the two-dimensional drawing on the inspection form for the installation accuracy of pipes in the hull section with the actual object, it is possible to very intuitively and quickly find the pipes to be inspected and the structural wall panels serving as the positioning reference planes, directly measure and record the data, and quickly judge whether the installation accuracy of the pipes is qualified by comparing the measured data (measurement distance) with the theoretical data (positioning distance). It has high efficiency and strong practicability, and can accurately and effectively control the accuracy of the pipe system in the joint area. In addition, the method for inspecting the installation accuracy of pipes in the hull section provided in this embodiment can not only be used to inspect and control the installation accuracy of pipes, but also be used to assist in installing pipes and improve the construction efficiency.

[0067] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A method for checking the installation accuracy of hull segment pipes, characterized in that: include: A hull section pipe installation accuracy checklist is prepared according to the hull section design parameters, and the hull section pipe installation accuracy checklist includes the positioning parameters of the hull section pipes; The positioning parameters of the hull segment pipes include: a first positioning distance between each pipe at the front end of the hull segment and the first positioning reference plane along the first direction, a second positioning distance between each pipe at the front end of the hull segment and the second positioning reference plane along the second direction, and a third positioning distance between each pipe at the rear end of the hull segment and the fourth positioning reference plane along the first direction, a fifth positioning distance between each pipe at the rear end of the hull segment and the fifth positioning reference plane along the second direction, and a sixth positioning distance between each pipe at the rear end of the hull segment and the sixth positioning reference plane along the third direction; The first direction is the front-rear direction of the hull section, the second direction is the left-right direction of the hull section, and the third direction is the height direction of the hull section; Measuring the processed hull sections to determine the actual position parameters of the hull section pipes, the actual position parameters of the hull section pipes including: a first measurement distance between each pipe at the front end of the hull section and the first positioning reference plane along the first direction, a second measurement distance between each pipe at the second positioning reference plane along the second direction, and a third measurement distance between each pipe at the rear end of the hull section and the fourth positioning reference plane along the first direction, a fifth measurement distance between each pipe at the rear end of the hull section and the fifth positioning reference plane along the second direction, and a sixth measurement distance between each pipe at the rear end of the hull section and the sixth positioning reference plane along the third direction; Compare the positioning parameters of the hull section pipes with the actual position parameters of the hull section pipes to determine whether the installation accuracy of each pipe in the hull section meets the design requirements.

2. The method for checking the installation accuracy of hull segment pipes according to claim 1 is characterized in that: The hull section pipe installation accuracy checklist also includes the numbers of each pipe at the front end of the hull section and the numbers of each pipe at the rear end of the hull section.

3. The method for checking the installation accuracy of hull segment pipes according to claim 2 is characterized in that: The hull section pipe installation accuracy inspection form also includes a 2D drawing of the hull section front view and a 2D drawing of the hull section rear view. The 2D drawing of the hull section front view is marked with the number of each pipe at the front end of the hull section, and the 2D drawing of the hull section rear view is marked with the number of each pipe at the rear end of the hull section.

4. The method for checking the installation accuracy of hull segment pipes according to claim 3 is characterized in that: The diameters of the pipes at the front end of the hull section are also marked on the two-dimensional drawing of the front view of the hull section, and the diameters of the pipes at the rear end of the hull section are also marked on the two-dimensional drawing of the rear view of the hull section.

5. The method for checking the installation accuracy of hull segment pipes according to claim 4 is characterized in that: According to the design parameters of the hull section, the hull section pipe installation accuracy checklist is prepared, including: Establishing a three-dimensional model of the hull section in three-dimensional software according to the design parameters of the hull section; A two-dimensional drawing of a front view of the hull section and a two-dimensional drawing of a rear view of the hull section are established through the three-dimensional model of the hull section, and annotations are made on the two-dimensional drawing of the front view of the hull section and the two-dimensional drawing of the rear view of the hull section.

6. The method for checking the installation accuracy of hull segment pipes according to claim 5 is characterized in that: The first positioning reference plane is the end surface of the closing mouth at the front end of the hull section, the fourth positioning reference plane is the end surface of the closing mouth at the rear end of the hull section, the second positioning reference plane is the side surface of the vertical structural wall plate at the front end of the hull section, the fifth positioning reference plane is the side surface of the vertical structural wall plate at the rear end of the hull section, the third positioning reference plane is the side surface of the horizontal structural wall plate at the front end of the hull section, and the sixth positioning reference plane is the horizontal structural wall plate at the rear end of the hull section.

7. The method for checking the installation accuracy of hull segment pipes according to claim 1, characterized in that: The hull section pipe installation accuracy inspection form includes a first inspection form and a second inspection form. The first positioning distance between each pipe at the front end of the hull section and the first positioning reference plane along the first direction and the fourth positioning distance between each pipe at the rear end of the hull section and the fourth positioning reference plane along the first direction are both marked on the first inspection form, the second positioning distance between each pipe at the front end of the hull section and the second positioning reference plane along the second direction, the third positioning distance between each pipe at the front end of the hull section and the third positioning reference plane along the third direction, the fifth positioning distance between each pipe at the rear end of the hull section and the fifth positioning reference plane along the second direction and the sixth positioning distance between each pipe at the rear end of the hull section and the sixth positioning reference plane along the third direction are both marked on the second inspection form.

8. The method for checking the installation accuracy of hull segment pipes according to any one of claims 1 to 7, characterized in that: Compare the positioning parameters of the hull section pipes with the actual position parameters of the hull section pipes to determine whether the installation accuracy of each hull section pipe meets the design requirements, including: Calculate a first deviation value between a first positioning distance and a first measuring distance of each pipe at the front end of the hull section, a second deviation value between a second positioning distance and a second measuring distance, and a third deviation value between a third positioning distance and a third measuring distance, and determine whether the first deviation value, the second deviation value, and the third deviation value of each pipe at the front end of the hull section exceed a design deviation range; Calculate the fourth deviation value between the fourth positioning distance and the fourth measurement distance of each pipe at the rear end of the hull section, the fifth deviation value between the fifth positioning distance and the fifth measurement distance, and the sixth deviation value between the sixth positioning distance and the sixth measurement distance, and determine whether the fourth deviation value, the fifth deviation value and the sixth deviation value of each pipe at the front end of the hull section exceed the design deviation range.

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