Umbilical cable cumulative plastic deformation simulation device and test method

Abstract

The present invention discloses an umbilical cable cumulative plastic deformation simulation device, comprising a main body, a first reel, a second reel, and a data acquisition device; the main body is provided with a guide rail, the guide rail comprising a head end and a tail end, the guide rail being used to carry and guide the pipeline to be tested to move on the guide rail; the first reel and the second reel are respectively provided at both ends of the guide rail, the pipeline to be tested being wound on the first reel and the second reel, the first reel and the second reel rotating themselves to transport and transfer the pipeline to be tested between the first reel, the guide rail, and the second reel, and the first reel and the second reel are capable of moving up and down to enable the pipeline to be tested to be horizontally transferred between the reels and the guide rail; the data acquisition device is provided on the outer wall of the pipeline to be tested and is used to collect the cumulative plastic strain data of the pipeline to be tested in real time. The present invention can conduct umbilical cable cumulative plastic deformation simulation tests, thereby effectively guiding actual production.

Description

Technical Field

[0001] The present invention relates to the technical field of umbilical cable cumulative plastic deformation simulation test, and in particular to an umbilical cable cumulative plastic deformation simulation device and a test method. Background Art

[0002] Umbilical cables are a key component of subsea production systems, providing electrical and hydraulic power, chemical injection channels, and data transmission for topside module control signals and the subsea production system. During the manufacturing process, umbilical cables are subjected to repeated bending, tension, torsion, and combined loads. The accumulated plastic strain during the manufacturing process can severely reduce the fatigue life of the steel tubes within the umbilical cable, leading to premature failure of the umbilical cable during service. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an umbilical cable cumulative plastic deformation simulation device, which can be used to simulate the curling and stretching behavior of the umbilical cable during the production process and test the cumulative plastic strain of the umbilical cable.

[0004] The technical problem to be solved by the present invention is also to provide a simulation test method for the cumulative plastic deformation of a submarine umbilical cable, which can simulate the curling and stretching behavior of the umbilical cable during the production process and test the cumulative plastic strain of the umbilical cable.

[0005] In order to solve the above problems, the present invention provides an umbilical cable cumulative plastic deformation simulation device, comprising a main body, a first reel, a second reel and a data acquisition device;

[0006] A guide rail is provided on the main body, the guide rail includes a head end and a tail end, and the guide rail is used to carry and guide the pipeline to be tested to move on the guide rail;

[0007] The first reel and the second reel are respectively provided at both ends of the guide rail, with the first reel provided on one side of the head end and the second reel provided on one side of the tail end. The first reel and the second reel are wound with the pipe to be tested. The first reel and the second reel rotate themselves to transport the pipe to be tested between the first reel, the guide rail, and the second reel. The first reel and the second reel are capable of moving up and down to enable the pipe to be tested to be horizontally transferred between the reel and the guide rail.

[0008] The data acquisition device is arranged on the outer wall of the pipeline to be tested, and is used to collect the accumulated plastic strain data of the pipeline to be tested in real time.

[0009] In one embodiment, the guide rail includes a first guide rail and a second guide rail, the first guide rail is a linear guide rail, and the second guide rail is a curved guide rail.

[0010] In one embodiment, the first guide rail includes a first head end and a first tail end, and the first head end and the first tail end are on the same horizontal line;

[0011] The second guide rail includes a second head end and a second tail end, and the second head end is located at a position lower than the second tail end;

[0012] The first tail end and the second tail end are arranged at positions that coincide with each other.

[0013] In one embodiment, the first guide rail is provided on the top of the main body;

[0014] The second head end of the second guide rail is arranged at the bottom of the main body, and the second tail end is arranged at the top of the main body.

[0015] In one embodiment, a first curved guide rail and a second curved guide rail are provided between the second head end and the second tail end of the second guide rail, and the first curved guide rail and the second curved guide rail are connected to form an S-shaped curved guide rail.

[0016] In one embodiment, the first reel is located close to the first head end or the second head end, and the first reel can move up and down to enable the pipe to be tested to be horizontally transferred between the first reel and the first head end or the second head end.

[0017] In one embodiment, the second reel is located close to the first and second tail ends, and the second reel can move up and down to enable the pipe to be tested to be transferred horizontally between the second reel and the first and second tail ends.

[0018] In one embodiment, the first reel and the second reel are moved up and down by reel guide rails.

[0019] In one embodiment, the first reel and the second reel can rotate clockwise or counterclockwise to complete the winding and unwinding of the pipe to be tested.

[0020] To solve the above problems, the present invention provides an umbilical cable cumulative plastic deformation simulation test method based on the above umbilical cable cumulative plastic deformation simulation device, comprising:

[0021] Roll the entire pipeline to be tested onto the first reel, then partially lead out the pipeline to be tested and lay it on the guide rail, and then lead the pipeline to be tested onto the second reel;

[0022] Adjusting the setting position of the first reel so that the pipeline to be tested can be horizontally transferred between the first reel and the guide rail;

[0023] Adjusting the setting position of the second reel so that the pipeline to be tested can be horizontally transferred between the second reel and the guide rail;

[0024] The first reel and the second reel are started, and the pipeline to be tested is transported from the first reel to the second reel via the guide rail;

[0025] The data acquisition device is started to collect the accumulated plastic strain data of the pipeline to be tested in real time.

[0026] The implementation of the present invention has the following beneficial effects:

[0027] The present invention provides an umbilical cable cumulative plastic deformation simulation device and test method that can simulate the curling and stretching behavior of umbilical cables during production and measure the umbilical cable's cumulative plastic strain. By understanding the umbilical cable's cumulative plastic strain and obtaining long-term data on the extent of various umbilical cable damage, this method provides reliable and effective test data and experience for practical engineering operations and applications, while also offering more analytical approaches and solutions for failure mode exploration.

[0028] Furthermore, in the present invention, the guide rail includes a first guide rail and a second guide rail, wherein the first guide rail is a linear guide rail and the second guide rail is a curved guide rail. The first and second guide rails enable the umbilical cable to be wound up and down multiple times, as well as wound up and down in the same direction and in opposite directions, providing important reference value for studying the accumulated plastic strain during the umbilical cable production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the structure of the umbilical cable cumulative plastic deformation simulation device of the present invention when conducting a test using the first guide rail;

[0030] Figure 2 Schematic diagram of the structure of the umbilical cable cumulative plastic deformation simulation device of the present invention when conducting a test using the second guide rail. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0032] In order to solve the above technical problems, the present invention provides an umbilical cable cumulative plastic deformation simulation device, such as Figures 1-2 As shown, it includes a main body 1, a first scroll 2, a second scroll 3 and a data acquisition device 5;

[0033] The main body 1 is provided with a guide rail, which includes a head end and a tail end. The guide rail is used to carry and guide the pipeline to be tested 4 to move on the guide rail;

[0034] The first reel 2 and the second reel 3 are respectively arranged at both ends of the guide rail, with the first reel 2 being arranged on one side of the head end and the second reel 3 being arranged on one side of the tail end. The pipe to be tested 4 is rolled up on the first reel 2 and the second reel 3. The first reel 2 and the second reel 3 rotate themselves to transport the pipe to be tested 4 between the first reel 2 and the guide rail and the second reel 3. The first reel 2 and the second reel 3 can move up and down to enable the pipe to be tested 4 to be horizontally transferred between the reel and the guide rail.

[0035] The data acquisition device 5 is arranged on the outer wall of the pipeline 4 to be tested, and is used to collect the accumulated plastic strain data of the pipeline 4 to be tested in real time.

[0036] Furthermore, to better simulate the curling and stretching behavior during umbilical cable production, in one embodiment, the guide rail includes a first guide rail 11 and a second guide rail 12, wherein the first guide rail 11 is a linear guide rail and the second guide rail 12 is a curved guide rail. Preferably, the main body 1 is a truss, and the first guide rail 11 and the second guide rail 12 are fixed to the truss.

[0037] like Figure 1 As shown, the first guide rail 11 includes a first head end and a first tail end, and the first head end and the first tail end are on the same horizontal line. Preferably, the first guide rail 11 is provided at the top of the main body 1. Figure 2 As shown, the second guide rail 12 includes a second head end and a second tail end, and a first curved guide rail and a second curved guide rail are provided between the second head end and the second tail end of the second guide rail 12, and the first curved guide rail is connected to the second curved guide rail to form an S-shaped curved guide rail. In one embodiment, the setting position of the second head end is lower than the setting position of the second tail end, and the setting positions of the first tail end and the second tail end coincide with each other. The second head end of the second guide rail 12 is provided at the bottom of the main body 1, and the second tail end is provided at the top of the main body 1. The first guide rail 11 and the second guide rail 12 can increase the simulation scene, which is conducive to ensuring the diversity of research data.

[0038] In addition, the present device requires the first reel 2 and the second reel 3 to be driven to achieve the transportation and transfer of the pipe to be tested 4. In one embodiment, the first reel 2 is set close to the setting position of the first head end or the second head end, and the first reel 2 can be displaced up and down to achieve the horizontal transfer of the pipe to be tested 4 between the first reel 2 and the first head end or the second head end. The second reel 3 is set close to the setting position of the first tail end and the second tail end, and the second reel 3 can be displaced up and down to achieve the horizontal transfer of the pipe to be tested 4 between the second reel 3 and the first tail end and the second tail end. Preferably, the first reel 2 and the second reel 3 are moved up and down by reel guides; the first reel 2 and the second reel 3 can rotate clockwise or counterclockwise to complete the winding and unwinding of the pipe to be tested 4.

[0039] Accordingly, the present invention provides an umbilical cable cumulative plastic deformation simulation test method based on the above-mentioned umbilical cable cumulative plastic deformation simulation device, comprising:

[0040] The pipe 4 to be tested is completely rolled onto the first reel 2, and then a portion of the pipe 4 to be tested is led out and laid on the guide rail, and the pipe 4 to be tested is led onto the second reel 3;

[0041] Adjust the setting position of the first reel 2 so that the pipe to be tested 4 can be transferred horizontally between the first reel 2 and the guide rail;

[0042] Adjust the setting position of the second reel 3 so that the pipe to be tested 4 can be transferred horizontally between the second reel 3 and the guide rail;

[0043] The first reel 2 and the second reel 3 are started, and the pipeline to be tested 4 is transported from the first reel 2 to the second reel 3 via the guide rail;

[0044] The data acquisition device 5 is started to collect the accumulated plastic strain data of the pipeline to be tested 4 in real time.

[0045] Preferably, the data acquisition device 5 includes a sensor mounted on the surface of the pipe 4 to be tested and a computer connected to the sensor, wherein the computer is capable of collecting the accumulated plastic strain data of the pipe 4 to be tested during the curling process. Preferably, the transmitter includes a force sensor or a strain gauge sensor.

[0046] Preferably, the guide rail includes a first guide rail 11 and a second guide rail 12 , and the test methods of the first guide rail 11 and the second guide rail 12 are different.

[0047] The first guide rail 11 is selected for simulation test, and the setting state of the umbilical cable cumulative plastic deformation simulation device is as follows: Figure 1As shown, the test method includes the following steps:

[0048] The entire pipe 4 to be tested is rolled onto the first reel 2 , and then a portion of the pipe 4 to be tested is led out and laid on the first guide rail 11 , and the pipe 4 to be tested is led onto the second reel 3 ; preferably, the first guide rail 11 is a linear guide rail; more preferably, the first guide rail 11 is provided at the top of the main body 1 .

[0049] Adjust the setting position of the first reel 2 so that the pipe to be tested 4 can be horizontally transferred between the first reel 2 and the first head end of the first guide rail 11; adjust the setting position of the second reel 3 so that the pipe to be tested 4 can be horizontally transferred between the second reel 3 and the first tail end of the first guide rail 11; preferably, the first reel 2 and the second reel 3 are on the same horizontal line; more preferably, the first reel 2 and the second reel 3 are flush with the top of the main body 1.

[0050] The first reel 2 and the second reel 3 are started, and the pipe to be tested 4 is transported from the first reel 2 to the second reel 3 via the first guide rail 11. Preferably, the first reel 2 and the second reel 3 rotate counterclockwise simultaneously, and the pipe to be tested 4 is horizontally transferred from the first reel 2 to the first head end, passes through the first guide rail 11, and then is transferred from the first tail end to the second reel 3. That is, the first reel 2 continuously unwinds and the second reel 3 continuously rewinds.

[0051] The data acquisition device 5 is started to collect the accumulated plastic strain data of the pipeline to be tested 4 in real time.

[0052] The second guide rail is selected for simulation test, and the setting state of the umbilical cable cumulative plastic deformation simulation device is as follows: Figure 2 As shown, the test method includes the following steps:

[0053] The pipe 4 to be tested is completely rolled onto the first reel 2. A portion of the pipe 4 to be tested is then partially unwound and laid onto the second guide rail 12, which is then guided onto the second reel 3. Preferably, the second guide rail 12 is a curved guide rail; more preferably, the second guide rail 12 is an S-shaped curved guide rail. Most preferably, the second leading end of the second guide rail 12 is located at the bottom of the main body 1, and the second trailing end is located at the top of the main body 1.

[0054] Adjust the setting position of the first reel 2 so that the pipe to be tested 4 can be horizontally transferred between the first reel 2 and the second head end of the second guide rail 12; adjust the setting position of the second reel 3 so that the pipe to be tested 4 can be horizontally transferred between the second reel 3 and the second tail end of the second guide rail 12; preferably, the first reel 2 is flush with the bottom of the main body 1, and the second reel 3 is flush with the top of the main body 1.

[0055] The first reel 2 and the second reel 3 are started, and the pipe to be tested 4 is transported from the first reel 2 to the second reel 3 via the second guide rail 12. Preferably, the first reel 2 rotates clockwise and the second reel 3 rotates counterclockwise. The pipe to be tested 4 is horizontally transferred from the first reel 2 to the second head end, passes through the second guide rail 12, and then is transferred from the second tail end to the second reel 3. That is, the first reel 2 is continuously unwinding and the second reel 3 is continuously rewinding.

[0056] The data acquisition device 5 is started to collect the accumulated plastic strain data of the pipeline to be tested 4 in real time.

[0057] In the present invention, the umbilical cable can be wound up and down multiple times, and wound in the same direction and in the reverse direction through the first guide rail 11 and the second guide rail 12, which has important reference value for the study of accumulated plastic strain in the production process of the umbilical cable.

[0058] In summary, the present invention provides an umbilical cable cumulative plastic deformation simulation device and test method that can simulate the curling and stretching behavior of umbilical cables during production and measure the umbilical cable's cumulative plastic strain. By understanding the umbilical cable's cumulative plastic strain and obtaining long-term data on the extent of various umbilical cable damage, this method provides reliable and effective test data and experience for practical engineering operations and applications, while also offering more analytical approaches and solutions for failure mode exploration.

[0059] The above is a preferred embodiment of the invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An umbilical cable cumulative plastic deformation simulation device, characterized in that: It includes a main body, a first scroll, a second scroll and a data acquisition device; A guide rail is provided on the main body, the guide rail includes a head end and a tail end, and the guide rail is used to carry and guide the pipeline to be tested to move on the guide rail; The first reel and the second reel are respectively provided at both ends of the guide rail, with the first reel provided on one side of the head end and the second reel provided on one side of the tail end. The first reel and the second reel are wound with the pipe to be tested. The first reel and the second reel rotate themselves to transport the pipe to be tested between the first reel, the guide rail, and the second reel. The first reel and the second reel are capable of moving up and down to enable the pipe to be tested to be horizontally transferred between the reel and the guide rail. The data acquisition device is provided on the outer wall of the pipeline to be tested, and is used to collect the accumulated plastic strain data of the pipeline to be tested in real time; The guide rail includes a first guide rail and a second guide rail, the first guide rail is a linear guide rail, and the second guide rail is a curved guide rail; A first arc-shaped guide rail and a second arc-shaped guide rail are provided between the second head end and the second tail end of the second guide rail, and the first arc-shaped guide rail and the second arc-shaped guide rail are connected to form an S-shaped arc-shaped guide rail.

2. The umbilical cable cumulative plastic deformation simulation device according to claim 1, characterized in that: The first guide rail includes a first head end and a first tail end, and the first head end and the first tail end are on the same horizontal line; The second guide rail includes a second head end and a second tail end, and the second head end is located at a position lower than the second tail end; The first tail end and the second tail end are arranged at positions that coincide with each other.

3. The umbilical cable cumulative plastic deformation simulation device according to claim 2, characterized in that: The first guide rail is provided on the top of the main body; The second head end of the second guide rail is arranged at the bottom of the main body, and the second tail end is arranged at the top of the main body.

4. The umbilical cable cumulative plastic deformation simulation device according to claim 3, characterized in that: The first reel is located close to the first head end or the second head end, and can move up and down to transfer the pipeline to be tested horizontally between the first reel and the first head end or the second head end.

5. The umbilical cable cumulative plastic deformation simulation device according to claim 3, characterized in that: The second reel is located close to the first and second tail ends, and can move up and down to transfer the pipe to be tested horizontally between the second reel and the first and second tail ends.

6. The umbilical cable cumulative plastic deformation simulation device according to claim 1, characterized in that: The first reel and the second reel are moved up and down by reel guide rails.

7. The umbilical cable cumulative plastic deformation simulation device according to claim 1, characterized in that: The first reel and the second reel can rotate clockwise or counterclockwise to complete the winding and unwinding of the pipeline to be tested.

8. A method for simulating the cumulative plastic deformation of an umbilical cable based on the umbilical cable cumulative plastic deformation simulation device according to any one of claims 1 to 7, characterized in that: include: Roll the entire pipeline to be tested onto the first reel, then partially lead out the pipeline to be tested and lay it on the guide rail, and then lead the pipeline to be tested onto the second reel; Adjusting the setting position of the first reel so that the pipeline to be tested can be horizontally transferred between the first reel and the guide rail; Adjusting the setting position of the second reel so that the pipeline to be tested can be horizontally transferred between the second reel and the guide rail; The first reel and the second reel are started, and the pipeline to be tested is transported from the first reel to the second reel via the guide rail; The data acquisition device is started to collect the accumulated plastic strain data of the pipeline to be tested in real time.

Images