Manufacturing process of guide pipe frame discharge caisson

Abstract

The invention discloses a manufacturing process of a guide pipe frame drainage caisson, which comprises the following steps of: lengthening a drainage caisson protection pipe, and installing an internal partition plate in the pipe wall of the drainage caisson protection pipe; the caisson opening and discharging process pipeline is prefabricated according to the whole length; the process pipeline is assembled and lengthened outside, a support is installed in the drainage caisson protection pipe, and the process pipeline which is assembled and lengthened penetrates into the drainage caisson protection pipe and penetrates through an opening of an inner partition plate; the open-drainage caisson body sections are sequentially assembled and lengthened in a butt joint mode; mounting components at the two ends of the opening and discharging caisson body and the process pipeline which are assembled and lengthened; and a top cover plate of the opening and discharging caisson is installed. According to the manufacturing process, through a set of mature and ordered manufacturing process, the time for extending and welding process pipelines by operators in a limited space is shortened, the suffocation risk is reduced, the safety is improved, meanwhile, prefabrication of the open drainage caisson on the ground can be achieved, the workload of high-altitude construction can be reduced, and the cost of a crane and personnel resources can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of marine engineering, and in particular to a manufacturing process of a jacket open-row caisson. Background Art

[0002] The jacket open caisson is a structural pipe with a large number of production process pipelines inside. The function of the process pipelines is to discharge part of the water generated during the production phase of the module operation into the sea after treatment. However, the internal space of the open caisson is small, and there are many production process pipelines. There is no mature manufacturing process during the construction phase, which will cause the internal process pipeline welding work to be carried out for a long time in a limited space. The process pipeline welding work will produce inert gas and carbon monoxide, which is easy to cause casualties. In addition, the immature manufacturing process will also cause a large number of open caissons to be constructed at high altitudes, resulting in increased crane and personnel resource costs. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a manufacturing process for a conductor frame open caisson, which can provide a mature and orderly manufacturing process, reduce the time for process pipeline welding work in a limited space, reduce the risk of suffocation, and reduce the workload of high-altitude construction, and reduce the cost of crane and personnel resources.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is as follows: A manufacturing process of a jacket open caisson comprises the following steps:

[0005] Step S100, extending the open row caisson protective pipe, and installing the internal partition in the pipe wall of the open row caisson protective pipe;

[0006] Step S200, prefabricate the open caisson process pipeline and prefabricate it in full length;

[0007] Step S300, assemble and butt-joint the process pipelines on the outside, install supports in the open caisson protective pipe, and insert the assembled and butt-jointed process pipelines into the open caisson protective pipe and through the openings of the internal partitions;

[0008] Step S400, the open row caisson bodies are sequentially butt-jointed in sections;

[0009] Step S500, installing components at both ends of the butt-jointed open row caisson box and process pipeline;

[0010] Step S600: Install the top cover of the open row caisson.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: before the open-row caisson body is assembled and butt-jointed, the manufacturing process installs internal partitions and supports in the protective pipe of the open-row caisson in advance, and prefabricates the process pipelines and the assembly and butt-jointing on the outside. After the assembled and butt-jointed process pipelines are inserted into the protective pipe of the open-row caisson, the sections of the open-row caisson body are assembled and butt-jointed in sequence. Through a set of mature and orderly manufacturing processes, the time for operators to carry out process pipeline jointing and welding in a limited space is reduced, the risk of suffocation is reduced, and safety is improved. At the same time, the prefabrication of the open-row caisson on the ground can be realized, which solves the problem of high-altitude hoisting and pipe threading, can reduce the workload of high-altitude construction, and reduce the cost of crane and personnel resources.

[0012] In the manufacturing process of the above-mentioned jacket open caisson, the insertion order of the process pipelines is: first the bottom pipeline and then the upper pipeline, first the two side pipelines and then the middle pipeline, first the main pipe and then the casing.

[0013] In the manufacturing process of the above-mentioned conductor frame open caisson, when inserting the process pipeline, the unsupported part of the process pipeline is supported by temporary support, the process pipeline inside the open caisson protective pipe is supported by wood, and the process pipeline exposed outside the open caisson protective pipe is supported by metal support or pier-lined wood.

[0014] In the manufacturing process of the above-mentioned conductor frame open-row caisson, the spacing between each support is determined on site according to the size of each process pipeline, but shall not be less than 4m.

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a plan view of the implementation of a manufacturing process of a jacket open-row caisson according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Sectional view of AA in the middle;

[0018] Figure 3 for Figure 1 Cross-sectional view of the middle BB;

[0019] Figure 4 for Figure 1 Cross-sectional view of CC.

[0020] Explanation of the accompanying figures: 1-open caisson protective pipe, 2-process pipeline, 3-horizontal partition, 4-inclined partition. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below. Figures 1 to 4The embodiment of the present invention provides a manufacturing process of a jacket open-row caisson, comprising the following steps:

[0022] Step S100, extending the open row caisson protective pipe 1, and installing the internal partition in the pipe wall of the open row caisson protective pipe 1;

[0023] Step S200, prefabricate the open caisson process pipeline 2 and prefabricate it in full length;

[0024] Step S300, the process pipeline 2 is connected and connected externally, a support is installed in the open caisson protective pipe 1, and the connected and connected process pipeline 2 is inserted into the open caisson protective pipe 1 and passes through the opening of the internal partition. Before the connection is completed, no components are installed at both ends of the process pipeline 2;

[0025] Step S400, the open caisson box body is divided into sections and connected in sequence. Before the box body is connected and connected, no components are installed at both ends; specifically, the open caisson box body is connected and connected in sequence according to sections 1#~5#. Before the box body is connected, the process pipeline 2 needs to be connected and connected externally before the pipe is inserted. The box body of section 1# is assembled first, and the partitions and supports are installed internally. Then the process pipeline 2 is inserted and passed through the partition opening; the internal partitions include horizontal partitions 3 and inclined partitions 4. The process pipelines 2 inside the open caisson are all straight pipes. However, since there are many process pipelines 2 and many internal partitions, the internal space is narrow. In the specific operation diagram of each internal partition, the oblique line is the partition, the solid circle is each process pipeline 2, and the dotted circle is the operation space, among which the straight side length of the horizontal partition 3 and the straight side length of the inclined partition 4 must have a slope; when inserting the pipe, the process pipeline 2. Temporary supports are used for the unsupported parts to prevent the process pipeline 2 from bending or even breaking due to its own gravity; wooden supports can be used for temporary supports of the open caisson protective pipe 1 to reduce paint damage. The long pipe section exposed outside the protective pipe can be supported by metal supports or wooden supports with pier pads. The support spacing is determined on site according to the size of each pipeline, but it should not be less than 3m or 4m. When designing the support spacing, the partitions in the open caisson and the supports installed in advance are taken into account; when the subsequent box is assembled, the partitions are first installed in the box, and then the exposed process pipeline 2 is passed through the box, and the process pipeline 2 is moved horizontally to pass through the opening of the partition to complete the assembly; when inserting the internal process pipeline 2, the order of inserting the partition from the top of the open caisson is to insert the bottom pipeline first and then the upper pipeline, the two side pipelines first and then the middle pipeline, and the main pipe first and then the casing;

[0026] Step S500, installing components on both ends of the butted open caisson box and the process pipeline 2, the components including but not limited to flanges, cover plates, tees, anti-collision plates, support plates, and check valves, etc.;

[0027] Step S600: Install the top cover of the open row caisson.

[0028] Before the open-row caisson body is assembled and butted, the manufacturing process installs internal partitions and supports in advance in the open-row caisson protective pipe 1, and prefabricates the process pipeline 2 and the assembly and butt length outside. After the assembled and butt-lengthened process pipeline 2 is inserted into the open-row caisson protective pipe 1, the open-row caisson body is assembled and butt-lengthened in sections in sequence. Through a set of mature and orderly manufacturing processes, the time for operators to carry out the joint welding of the process pipeline 2 in a limited space is reduced, the risk of suffocation is reduced, and safety is improved. At the same time, the open-row caisson can be prefabricated on the ground, which solves the problem of high-altitude hoisting and pipe threading, can reduce the workload of high-altitude construction, and reduce the cost of crane and personnel resources.

[0029] It should be noted that in the description of the present invention, if there are any orientation descriptions, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are all based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A manufacturing process for a jacket open caisson, characterized in that: The steps include: Step S100, extending the open row caisson protective pipe (1), and installing the internal partition plate in the pipe wall of the open row caisson protective pipe (1); Step S200, prefabricate the open caisson process pipeline (2) and prefabricate it in full length; Step S300, assembling and butting the process pipeline (2) on the outside, installing a support in the open caisson protective pipe (1), and inserting the assembled and butted process pipeline (2) into the open caisson protective pipe (1) and through the opening of the internal partition; Step S400, the open row caisson bodies are sequentially butt-jointed in sections; Step S500, installing components on both ends of the butt-jointed open-row caisson box and process pipeline (2); Step S600: Install the top cover of the open row caisson.

2. The manufacturing process of the jacket open caisson according to claim 1 is characterized in that: The insertion sequence of the process pipeline (2) is: first the bottom pipeline and then the upper pipeline, first the two side pipelines and then the middle pipeline, first the main pipe and then the casing.

3. The manufacturing process of the jacket open caisson according to claim 1 is characterized in that: When the process pipeline (2) is inserted, the unsupported part of the process pipeline (2) is supported by temporary supports, the process pipeline (2) inside the open caisson protective pipe (1) is supported by wooden planks, and the process pipeline (2) exposed outside the open caisson protective pipe (1) is supported by metal supports or wooden planks padded with piers.

4. The manufacturing process of the jacket open caisson according to claim 3 is characterized in that: The spacing between the supports is determined on site according to the size of each process pipeline (2), but shall not be less than 4m.

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