阅读说明：本技术 海管直线度测量装置及方法 (Sea pipe straightness measuring device and method ) 是由 齐兵兵 曲有杰 林守强 朱国侨 张忠扬 赵拥军 段亚辉 于 2019-12-02 设计创作，主要内容包括：本发明公开了一种海管直线度测量装置及方法,包括测量直梁以及两个测量侧框；两个所述测量侧框相平行间隔设置,所述测量直梁连接在两个所述测量侧框的顶部之间,在两个所述测量侧框与所述测量直梁之间形成有用于待测海管穿设其中的直线度测量通道。本发明的海管直线度测量装置及方法,适用于水下对海管进行直线度测量,不仅可由潜水员在300米以内浅水域使用,也可由ROV操作,实现300米以上深水域对海管的直线度测量。适用水深领域广,使用简单便捷,测量效果直观,在海管堵漏维修过程中起到重要作用,进一步提高了深水海管维修装备的作业能力。(The invention discloses a device and a method for measuring the straightness of a marine vessel, wherein the device comprises a measuring straight beam and two measuring side frames; the two measurement side frames are arranged in parallel at intervals, the measurement straight beam is connected between the tops of the two measurement side frames, and a straightness measurement channel for the submarine pipe to be measured to penetrate through is formed between the two measurement side frames and the measurement straight beam. The device and the method for measuring the straightness of the sea pipe are suitable for underwater measurement of the straightness of the sea pipe, can be used by divers in shallow water areas within 300 meters and can also be operated by an ROV (remote operated vehicle), and the straightness of the sea pipe in deep water areas of more than 300 meters can be measured. The device has the advantages of wide applicable water depth field, simplicity and convenience in use and visual measurement effect, plays an important role in the leakage stoppage and maintenance process of the submarine pipelines, and further improves the operation capacity of the deepwater submarine pipeline maintenance equipment.)

1. A sea pipe straightness measuring device is characterized by comprising a measuring straight beam and two measuring side frames; the two measurement side frames are arranged in parallel at intervals, the measurement straight beam is connected between the tops of the two measurement side frames, and a straightness measurement channel for the submarine pipe to be measured to penetrate through is formed between the two measurement side frames and the measurement straight beam.

2. The marine pipe straightness measurement device of claim 1, wherein the measurement side frame comprises at least two spaced apart measurement legs, at least one link connected between adjacent two of the measurement legs;

the top of the measuring supporting leg is connected to one side face of the measuring straight beam.

3. The marine pipe straightness measurement device of claim 2, wherein the measurement side frame comprises three measurement legs spaced apart in sequence.

4. The marine vessel straightness measurement device of claim 2, wherein the length direction of the measurement leg is relatively perpendicular to the length direction of the measurement straight beam.

5. The marine pipe straightness measurement device of claim 1, wherein the cross section of the measuring straight beam is polygonal, circular or elliptical.

6. The marine vessel straightness measurement device of any one of claims 1 to 5, further comprising a handle disposed on the survey straight beam.

7. A marine vessel straightness measuring method, using the marine vessel straightness measuring apparatus according to any one of claims 1 to 6, the marine vessel straightness measuring method comprising the steps of:

s1, aligning the straightness measuring channel of the sea pipe straightness measuring device with the axial direction of the sea pipe to be measured;

s2, moving the sea pipe straightness measuring device along the radial direction of the sea pipe to be measured, enabling the sea pipe to be measured to enter the straightness measuring channel until the measuring straight beam of the sea pipe straightness measuring device clings to the outer wall of the sea pipe to be measured, and observing whether the outer wall of the sea pipe to be measured is completely clinged to the measuring straight beam.

8. The method of measuring the straightness of the sea pipe according to claim 7, further comprising the steps of:

s3, rotating the sea pipe straightness measuring device by a preset angle along the sea pipe to be measured, tightly attaching the measuring straight beam to the outer wall of the sea pipe to be measured, and observing whether the outer wall of the sea pipe to be measured is completely attached to the measuring straight beam.

9. The method of measuring the straightness of the sea pipe according to claim 8, further comprising the steps of:

and S4, repeating the step S3 for multiple times.

10. The method of claim 8, wherein the predetermined angle is greater than 0 degrees and less than 180 degrees.

Technical Field

The invention relates to a marine vessel measuring device, in particular to a marine vessel straightness measuring device and method.

Background

In recent years, the number of deepwater marine pipes is increasing, and accidents of marine pipe leakage are more and more frequent due to the long design and construction period of the marine pipes, aging of pipelines, corrosion of seawater and the like. Once the sea pipe is leaked, huge threats are brought to the production of marine environment and oil and gas fields. When the sea pipe only has small through holes and leaks, a leaking stoppage pipe clamp is required to be installed at the leaking point for plugging. And the straightness of the leakage point on the sea pipe also influences the sealing performance between the leakage point and the leakage stoppage pipe clamp. In order to ensure that the plugging pipe clamp is successfully installed at a leakage point, the straightness of the part of the sea pipe where the plugging pipe clamp is installed needs to be detected.

Most of the existing pipeline straightness measuring equipment is designed for land testing, and the straightness measuring tools used by divers are few, so that the straightness measuring tools suitable for deep water sea pipes with the depth of more than 300 meters are not found for a while.

Disclosure of Invention

The invention aims to provide a sea pipe straightness measuring device and a sea pipe straightness measuring method suitable for underwater use.

The technical scheme adopted by the invention for solving the technical problems is as follows: the sea pipe straightness measuring device comprises a measuring straight beam and two measuring side frames; the two measurement side frames are arranged in parallel at intervals, the measurement straight beam is connected between the tops of the two measurement side frames, and a straightness measurement channel for the submarine pipe to be measured to penetrate through is formed between the two measurement side frames and the measurement straight beam.

Preferably, the measuring side frame comprises at least two measuring legs arranged at intervals, and at least one connecting rod connected between two adjacent measuring legs;

the top of the measuring supporting leg is connected to one side face of the measuring straight beam.

Preferably, the measuring side frame comprises three measuring legs which are sequentially distributed at intervals.

Preferably, the length direction of the measuring leg is relatively perpendicular to the length direction of the measuring straight beam.

Preferably, the cross section of the measuring straight beam is polygonal, circular or elliptical.

Preferably, the sea pipe straightness measuring device further comprises a handle arranged on the measuring straight beam.

The invention also provides a method for measuring the straightness of the marine vessel, which adopts any one of the devices for measuring the straightness of the marine vessel, and comprises the following steps:

s1, aligning the straightness measuring channel of the sea pipe straightness measuring device with the axial direction of the sea pipe to be measured;

s2, moving the sea pipe straightness measuring device along the radial direction of the sea pipe to be measured, enabling the sea pipe to be measured to enter the straightness measuring channel until the measuring straight beam of the sea pipe straightness measuring device clings to the outer wall of the sea pipe to be measured, and observing whether the outer wall of the sea pipe to be measured is completely clinged to the measuring straight beam.

Preferably, the method further comprises the following steps:

s3, rotating the sea pipe straightness measuring device by a preset angle along the sea pipe to be measured, tightly attaching the measuring straight beam to the outer wall of the sea pipe to be measured, and observing whether the outer wall of the sea pipe to be measured is completely attached to the measuring straight beam.

Preferably, the method further comprises the following steps:

and S4, repeating the step S3 for multiple times.

Preferably, the predetermined angle is greater than 0 degrees and less than 180 degrees.

The device and the method for measuring the straightness of the sea pipe are suitable for underwater measurement of the straightness of the sea pipe, can be used by divers in shallow water areas within 300 meters and can also be operated by an ROV (remote operated vehicle), and the straightness of the sea pipe in deep water areas of more than 300 meters can be measured. The device has the advantages of wide applicable water depth field, simplicity and convenience in use and visual measurement effect, plays an important role in the leakage stoppage and maintenance process of the submarine pipelines, and further improves the operation capacity of the deepwater submarine pipeline maintenance equipment.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic structural diagram of a marine vessel straightness measuring device according to an embodiment of the present invention;

fig. 2 is a schematic view of a use state of the marine vessel straightness measuring apparatus according to an embodiment of the present invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the sea pipe straightness measuring apparatus according to an embodiment of the present invention may include a straight measuring beam 10 and two measuring side frames 20.

The two measuring side frames 20 are arranged in parallel at intervals, the measuring straight beam 10 is connected between the tops of the two measuring side frames 20, and a straightness measuring channel 100 is formed between the two measuring side frames 20 and the measuring straight beam 10 and used for the marine pipe 1 to be measured to penetrate through the straightness measuring channel, so that the straightness of the marine pipe is measured.

The measuring straight beam 10 is a straight beam body, i.e. the length extension direction thereof is linear. When the straightness of the marine pipe 1 to be measured is measured, the length direction of the measuring straight beam 10 is parallel to the axial direction of the marine pipe 1 to be measured and is tightly attached to the marine pipe 1 to be measured, and meanwhile, the two measuring side frames 20 are matched with two opposite sides of the marine pipe 1 to be measured.

The shape of the measuring straight beam 10 is not limited, and for example, the cross-sectional shape thereof may be a polygon, a circle, an ellipse, or the like. As shown in fig. 1, in the present embodiment, the measuring straight beam 10 has a rectangular parallelepiped structure. The surface of the straight beam 10 in the straightness measuring channel 100 is a flat surface.

In other embodiments, the surface of the straight measuring beam 10 in the straightness measuring channel 100 may also be an arc surface (arc in cross section) corresponding to the outer circumference of the sea pipe.

The width of the surface of the measuring straight beam 10 facing the marine pipe 2 to be measured is smaller than the diameter of the marine pipe 1 to be measured.

The two measuring side frames 20 are respectively connected with two opposite side surfaces of the measuring straight beam 10 at the tops, so that the two measuring side frames 20 are symmetrically distributed on two opposite sides of the measuring straight beam 10.

The whole measuring side frame 20 is of a frame structure and is provided with a plurality of hollow parts, so that the measuring side frame is beneficial to sinking underwater to measure the straightness of the sea pipe.

Specifically, the measuring side frame 20 may include at least two measuring legs 21 disposed at intervals, and at least one link 22 connected between the adjacent two measuring legs 21. The measuring legs 21 are spaced apart and connected by links 22 so that the measuring side frame 20 has a certain linear length. The connecting rod 22 connected between the two measuring legs 21 can be one or more than one according to the length requirement of the measuring legs 21.

In this embodiment, as shown in fig. 1, each measuring side frame 20 includes three measuring legs 21 sequentially spaced apart from each other. Two connecting rods 22 are connected between two adjacent measuring legs 21, and the two connecting rods 22 are spaced in parallel. On opposite sides of the measuring straight beam 10, two measuring side frames 20 are arranged one for each measuring leg 21.

The top of the measuring leg 21 is attached to one side of the measuring straight beam 10. The lower end of the measuring leg 21 extends away from the measuring straight beam 10. The length direction of the measuring leg 21 is relatively perpendicular to the length direction of the measuring straight beam 10.

The measuring leg 21 is a straight leg as a whole, and in order to connect the measuring straight beam 10, the top of the measuring leg 21 may be disposed in an arc shape and connected to the side surface of the measuring straight beam 10 by the top end surface.

Further, the sea pipe straightness measuring device of the present invention further includes a handle 30 disposed on the measuring straight beam 10. The handle 30 can be used for a diver or an ROV (underwater robot) to grab and place the entire measuring apparatus.

The handle 30 may be formed by connecting a cross bar and a vertical bar. It is understood that the form, number, etc. of the handles 30 are not limited.

With reference to fig. 1 and 2, the method for measuring the straightness of the marine vessel of the present invention employs the above-mentioned device for measuring the straightness of the marine vessel. The method for measuring the straightness of the submarine pipeline comprises the following steps:

and S1, aligning the straightness measuring channel 100 of the sea pipe straightness measuring device with the axial direction of the sea pipe 1 to be measured.

Before the step, the surface of the marine pipe 1 to be measured is cleaned, the open side of the marine pipe straightness measuring channel 100 of the device faces the marine pipe 1 to be measured, and the length direction of the straightness measuring channel 100 is aligned with the axial direction of the marine pipe 1 to be measured.

S2, moving the device along the radial direction of the sea pipe 1 to be measured (slowly moving), making the sea pipe 1 to be measured enter the linearity measuring channel 100, until the measuring straight beam 10 of the sea pipe linearity measuring device clings to the outer wall of the sea pipe 1 to be measured, and observing whether the outer wall of the sea pipe 1 to be measured clings to the measuring straight beam 10 completely.

S3, rotating the sea pipe straightness measuring device by a preset angle along the sea pipe 1 to be measured, tightly attaching the measuring straight beam 10 to the outer wall of the sea pipe 1 to be measured, and observing whether the outer wall of the sea pipe 1 to be measured is completely attached to the measuring straight beam 10.

Wherein the predetermined angle of rotation is greater than 0 degrees and less than 180 degrees. For example, the predetermined angle may be 45 degrees, 30 degrees, etc., and may be adjusted according to actual needs.

And S4, repeating the step S3 for multiple times to measure the straightness of the whole circumference of the submarine pipe 1 to be measured.

For example, when the predetermined angle of rotation in step S3 is 45 °, after measuring the straightness of the outer wall of the marine pipe 1 to be measured at that angle, the rotation is repeated 3 times, and the whole marine pipe straightness measuring apparatus rotates 45 ° once along the marine pipe 1 to be measured, thereby performing the straightness measurement.

If the marine pipe 1 to be tested is completely attached to the measuring straight beam 10 from all directions, the straightness of the marine pipe 1 to be tested meets the requirement, and further meets the condition of installing the plugging pipe clamp, and the plugging pipe clamp can be installed. Otherwise, the pipeline is not matched, the leaking stoppage pipe clamp cannot be installed, the sea pipe needs to be processed by working procedures such as polishing, and when the requirement cannot be met through further processing, the maintenance scheme of the pipe clamp is stopped, and other maintenance schemes are replaced.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.