CN216768621U

CN216768621U - Immersed tube piping installation structure

Info

Publication number: CN216768621U
Application number: CN202220501226.XU
Authority: CN
Inventors: 王殿文; 潘伟; 张乃受; 刘德进; 苏长玺; 尚乾坤; 赫亚锋; 宋江伟; 吕护生; 李德洲; 林树栋; 张浩男; 王鹏飞; 林恒義; 于家钒; 杨毓晓; 胡思金; 王潞伟; 贾延烁; 张成武
Original assignee: CCCC First Harbor Engineering Co Ltd; No 2 Engineering Co Ltd of CCCC First Harbor Engineering Co Ltd
Current assignee: CCCC First Harbor Engineering Co Ltd; No 2 Engineering Co Ltd of CCCC First Harbor Engineering Co Ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-06-17
Anticipated expiration: 2032-03-08

Abstract

The application provides a immersed tube piping installation structure which is positioned in a separation cavity of an immersed tube and comprises a first pipeline section, a second pipeline section and a middle pipeline section positioned between the first pipeline section and the second pipeline section; wherein, pipeline first section and pipeline second section are roughly parallel, and the pipeline interlude has the contained angle with between pipeline first section and the pipeline second section.

Description

Immersed tube piping installation structure

Technical Field

The application relates to a immersed tube piping installation structure, and belongs to the field of immersed tube installation.

Background

A conventional sinking pipe section comprises a first passage 1 and a second passage 2 with a compartment 3 therebetween, as shown in figure 1, which is a cross-sectional view of a sinking pipe. Since the sinking pipe sections require ballast water during transport, a tank is provided in each

passage

1,2 and a ballast water line is installed in the compartment 3 for filling or draining the passage. When the immersed tube section is a straight tube section, the ballast water tube system is often a straight section, and the installation is rapid and convenient; but when encountering a sink leg section with curvature, the ballast water system needs to be designed separately to accommodate the curved conditions.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a immersed tube piping installation structure which is applicable to the installation of immersed tube piping with large curvature.

The immersed tube piping installation structure is positioned in a separate cavity of the immersed tube and comprises a first pipeline section, a second pipeline section and a middle pipeline section positioned between the first pipeline section and the second pipeline section; wherein, pipeline first section and pipeline second section are roughly parallel, and the pipeline interlude has the contained angle with between pipeline first section and the pipeline second section.

Optionally, the included angle is 1-3 °, preferably 3 °.

Optionally, both ends of the middle section of the pipeline are chamfered to be connected with the first section of the pipeline and the second section of the pipeline respectively.

Optionally, the middle section of the pipeline is connected with the first section of the pipeline and the second section of the pipeline respectively through flange seats.

Optionally, the middle section of the pipeline is provided with multiple sections, and an angle is formed between every two adjacent sections.

Optionally, at least one expansion joint is provided on the conduit mid-section.

Compared with the prior art, the beneficial effect of this application is:

the immersed tube piping installation structure provided by at least one embodiment of the application can be formed by modifying a straight line section piping, so that the aim of saving cost is fulfilled in the aspect of materials;

according to the immersed tube piping installation structure provided by at least one embodiment of the application, the installation operation process is substantially the same as that of a straight line section, the receiving time of operators on new materials and new processes is reduced, and therefore the field operation efficiency is improved.

Drawings

FIG. 1 is a cross-sectional view of a sink pipe;

FIG. 2 is a top view of the sink pipe;

FIG. 3 is a schematic view of the relationship of the immersed tube and immersed tube piping installation structure;

numbering in the figures: 1 first passage, 2 second passage, 3 separate chambers, 4 first section of piping, 5 second section of piping, 6 middle section of piping, 7 expansion joint.

Detailed Description

The technical solutions of the present application are explained in detail below with reference to specific embodiments, however, it should be understood that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1-3, embodiments of the present application provide a sinking tube piping installation structure that can be used in sinking tube sections of large curvature, i.e., where the radius of the circle on which a length of sinking tube lies is small and the degree of curvature is large, e.g., where the radius of the circle on which a curved section of a 148 meter arc lies is only 1050 meters. The immersed tube piping installation structure is positioned in a separation cavity 3 of the immersed tube; the first pipeline section 4 and the second pipeline section 5 of the immersed tube piping installation structure are arranged approximately in parallel, and the middle pipeline section 6 is located between the first pipeline section 4 and the second pipeline section 5 and respectively forms an included angle of approximately 1-3 degrees with the first pipeline section 4 and the second pipeline section 5, and the included angle can be 1 degree, 1.5 degrees, 2 degrees, 2.5 degrees, 3 degrees and the like. The two ends of the middle section 6 of the pipeline are inclined planes so as to be connected with the first section 4 of the pipeline and the second section 5 of the pipeline through flange seats and the like.

As an alternative embodiment, the middle section 6 of the pipe may be configured with multiple sections, and each section forms a certain angle therebetween, and the angle value may be adjusted according to actual requirements to adapt to the curvature of the immersed tube section. Such an arrangement is more suitable for use in situations where the immersed tube section is longer.

As an alternative embodiment, the pipe intermediate section 6 is provided with at least one expansion joint 7, the curvature of which can be adapted to the curvature of the immersed tube section. Without the angular arrangement of the pipe intermediate section 6 with respect to the pipe first section 4 and the pipe second section 5, respectively, a large number of expansion joints may need to be provided in the pipe intermediate section 6 in order to meet the requirements. Because the expansion joint is higher in price, the embodiment can reduce or avoid the use of the expansion joint, so that the economy is higher; and the normal operation of the ballast water pipe system needs pumping and discharging seawater, so that the corrosion to the expansion joint cannot be avoided, the wear rate of the material of the expansion joint can be caused, and compared with a cast steel pipe system, the water leakage risk can be increased.

The described embodiments are only for describing the preferred embodiments of the present application, and do not limit the scope of the present application, and various modifications and improvements made to the technical solution of the present application by those skilled in the art without departing from the design spirit of the present application should fall within the protection scope defined by the claims of the present application.

Claims

1. A immersed tube piping installation structure is characterized in that the immersed tube piping installation structure is positioned in a separation cavity of an immersed tube and comprises a first pipeline section, a second pipeline section and a middle pipeline section positioned between the first pipeline section and the second pipeline section; wherein, pipeline first section and pipeline second section are roughly parallel, and the pipeline interlude has the contained angle with between pipeline first section and the pipeline second section.

2. A sinking tube piping installation according to claim 1 wherein said included angle is 1-3 °.

3. A sinking tube string mounting arrangement according to claim 1 wherein the included angle is 3 °.

4. A sinking tube piping installation structure according to any one of claims 1 to 3 wherein the intermediate section of the pipe is chamfered at both ends to connect to the first and second sections of pipe respectively.

5. The immersed tube piping installation structure of claim 4, wherein the middle section of the pipeline is connected with the first section of the pipeline and the second section of the pipeline through flange seats respectively.

6. A immersed tube piping installation structure according to any one of claims 1 to 3, wherein said pipe intermediate section is configured with a plurality of sections, adjacent two sections being angled therebetween.

7. A immersed tube piping installation structure as claimed in any one of claims 1 to 3, wherein said pipe intermediate section is provided with at least one expansion joint.