CN112556937B - Underwater umbilical cable pressure testing device - Google Patents
Underwater umbilical cable pressure testing device Download PDFInfo
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- CN112556937B CN112556937B CN202011578443.0A CN202011578443A CN112556937B CN 112556937 B CN112556937 B CN 112556937B CN 202011578443 A CN202011578443 A CN 202011578443A CN 112556937 B CN112556937 B CN 112556937B
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides an underwater umbilical cable pressure testing device, relates to the technical field of umbilical cables, and is used for solving the technical problems of high construction difficulty and high risk when an umbilical cable is subjected to pressure testing. The underwater umbilical cable pressure testing device comprises an umbilical cable joint, a testing manifold and a pressure pump set, wherein the umbilical cable joint is positioned underwater during testing and is used for connecting a pipeline to be tested in an umbilical cable to be tested; the test manifold comprises a connecting manifold, and the connecting manifold is connected with the umbilical cable joint; the pressure pump set is used for pressing the test manifold so as to press the pipeline to be tested in the umbilical cable to be tested. The underwater umbilical cable pressure testing device provided by the invention is used for reducing the construction difficulty in the umbilical cable pressure testing and reducing the risk of the umbilical cable pressure testing.
Description
Technical Field
The invention relates to the technical field of umbilical cables, in particular to an underwater umbilical cable pressure testing device.
Background
During the development of marine oil and gas resources, subsea production system operations are typically controlled by offshore platform facilities. As a device for connecting the above-water platform facility and the underwater production system, the umbilical cable is provided with a line for transmitting power and transmitting signals for the underwater equipment and a pipeline for controlling the underwater equipment to open and close and carrying out chemical agent conveying.
After the umbilical cable is laid, in order to ensure that the umbilical cable works normally, pressure testing needs to be carried out on a pipeline of the umbilical cable, namely the umbilical cable is pressed to the pipeline, and the pipeline of the umbilical cable is kept for a period of time to test the sealing performance of the umbilical cable. The sealing performance of an umbilical to be tested is usually tested by supporting the integrated workover control system by a vessel and by the umbilical of the integrated workover control system with the aid of the vessel and the integrated workover control system (IWOCS system).
However, the umbilical cable pressure test scheme is difficult to construct and high in risk.
Disclosure of Invention
In view of the above problems, embodiments of the present invention provide an underwater umbilical cable pressure testing apparatus, which is used for reducing the construction difficulty of an umbilical cable pressure test and reducing the risk of the umbilical cable pressure test.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the embodiment of the invention provides an underwater umbilical cable pressure testing device, wherein the underwater umbilical cable pressure testing device comprises an umbilical cable joint, a testing manifold and a pressure pump set which are positioned underwater during testing; the umbilical cable joint is used for connecting a pipeline to be tested in the umbilical cable to be tested; the test manifold comprises a connecting manifold, and the connecting manifold is connected with the umbilical cable joint; and the pressure pump set is used for pressing the test manifold so as to press a pipeline to be tested in the umbilical cable to be tested.
The underwater umbilical cable pressure testing device provided by the embodiment of the invention has the following advantages:
the underwater umbilical cable pressure testing device provided by the embodiment of the invention comprises an umbilical cable joint, a testing manifold and a pressure pump set, wherein the umbilical cable joint, the testing manifold and the pressure pump set are positioned underwater during testing, the connecting manifold in the testing manifold is communicated with the umbilical cable joint, and the pressure pump set can pressurize the testing manifold. So design, near the umbilical cable that awaits measuring under the surface of water can be transferred to underwater umbilical cable pressure test device, and the umbilical cable that awaits measuring this moment is close with umbilical cable joint distance, only needs to insert the plug at umbilical cable terminal on umbilical cable joint, beats to the test manifold through the pressure pump package to beat through the connecting manifold and the umbilical cable joint in the test manifold and the examination pipeline that awaits measuring to the umbilical cable that awaits measuring, thereby carry out the pressure test. This scheme of adoption need not to use extra umbilical cable to the construction degree of difficulty of pressure test has been reduced. And during testing, the umbilical cable joint, the testing manifold and the pressure pump set are positioned underwater, ship support is not needed, the construction difficulty of pressure testing is further reduced, and the risk of pressure testing is reduced.
The underwater umbilical pressure testing device comprises a pressure input branch, wherein a first end of the pressure input branch is provided with a pressure input interface, the pressure input interface is used for being connected with the pressure pump set, and a second end of the pressure input branch is communicated with the connecting manifold.
The underwater umbilical pressure testing device as described above, wherein the pressure input branch is further provided with a first stop valve, and the first stop valve is located between the first end and the second end.
The underwater umbilical pressure testing device as described above, wherein the test manifold further includes a first pressure relief branch, one end of the first pressure relief branch is communicated with the pressure input branch, and the communication position is a first communication position, and the first communication position is located between the first stop valve and the second end;
the other end of the first pressure relief branch is communicated with the outside ocean, and a pressure relief valve is arranged at one end of the first pressure relief branch communicated with the outside ocean;
the first pressure relief branch is further provided with a second stop valve, and the second stop valve is located between the pressure relief valve and the first communication position.
The underwater umbilical pressure testing device, wherein the testing manifold further comprises a second pressure relief branch, one end of the second pressure relief branch is communicated with the pressure input branch, and the communication position is a second communication position, and the second communication position is located between the first stop valve and the second end;
the other end of the second pressure relief branch is communicated with the outside ocean, and a safety valve is arranged at one end of the second pressure relief branch communicated with the outside ocean;
the second pressure relief branch is further provided with a third stop valve, and the third stop valve is located between the safety valve and the second communication position.
The underwater umbilical pressure testing device as described above, wherein a fourth stop valve is further disposed on the pressure input branch, and the fourth stop valve is located between the second end and a communication position close to the second end in the second communication position and the first communication position.
The underwater umbilical pressure testing device as described above, wherein the testing manifold is divided into a high pressure testing manifold, a low pressure testing manifold and a chemical agent testing manifold, and the underwater umbilical pressure testing device includes at least one of the high pressure testing manifold, the low pressure testing manifold and the chemical agent testing manifold;
the high-pressure test manifold is used for carrying out pressure test on a hydraulic pipeline with higher working pressure in the umbilical cable to be tested;
the low-pressure test manifold is used for carrying out pressure test on a hydraulic pipeline with lower working pressure in the umbilical cable to be tested;
the chemical agent test manifold is used for carrying out pressure test on a chemical agent pipeline in the umbilical cable to be tested.
An underwater umbilical pressure test apparatus as described above, wherein,
the umbilical cable connector comprises a plurality of low-pressure interfaces, a plurality of high-pressure interfaces and a plurality of chemical agent interfaces, and when the umbilical cable connector is connected with a plug of a terminal of the umbilical cable to be tested, the interfaces of a plurality of hydraulic pipelines with lower working pressure in the umbilical cable to be tested are correspondingly connected with the low-pressure interfaces one by one; the interfaces of a plurality of hydraulic pipelines with higher working pressure in the umbilical cable to be tested are connected with the high-pressure interfaces in a one-to-one correspondence manner; the interfaces of a plurality of chemical agent pipelines in the umbilical cable to be tested are connected with the plurality of chemical agent interfaces in a one-to-one correspondence manner;
the low-pressure test manifold comprises a plurality of low-pressure branches, a plurality of input ends of the low-pressure branches are communicated with the second end of the pressure input branch of the low-pressure test manifold, and a plurality of output ends of the low-pressure branches are communicated with the low-pressure interfaces in a one-to-one correspondence manner; each low-pressure branch is provided with a branch valve;
the high-pressure test manifold comprises a plurality of high-pressure branch lines, a plurality of input ends of the high-pressure branch lines are communicated with the second end of the pressure input branch line of the high-pressure test manifold, and a plurality of output ends of the high-pressure branch lines are communicated with the high-pressure interfaces in a one-to-one correspondence manner; each high-pressure branch is provided with a branch valve;
the chemical agent test manifold comprises a plurality of chemical agent branch paths, a plurality of input ends of the chemical agent branch paths are communicated with the second end of the pressure input branch path of the chemical agent test manifold, and a plurality of output ends of the chemical agent branch paths are communicated with a plurality of chemical agent interfaces in a one-to-one correspondence manner; and each chemical agent branch is provided with a branch valve.
The underwater umbilical pressure testing device as described above, wherein the underwater umbilical pressure testing device further comprises a housing and a lowering frame, the housing is mounted on the lowering frame, the testing manifold is disposed in the housing, the umbilical joint is disposed on the housing, and the pressure pump unit is disposed outside the housing;
the casing includes and controls the panel, control the panel and be used for controlling the work of test manifold.
An underwater umbilical pressure test apparatus as described above, wherein, the underwater umbilical cable pressure testing device further comprises a dustproof frame, and the dustproof frame is arranged below the lowering frame.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a test manifold according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an underwater umbilical pressure testing apparatus provided in an embodiment of the present invention.
Description of reference numerals:
1: testing the manifold; 11: a high pressure test manifold;
111: a high-voltage branch circuit; 12: a low pressure test manifold;
121: a low-voltage branch circuit; 13: a chemical test manifold;
131: a chemical agent branch line; 2: connecting a manifold;
3: a pressure input branch; 31: a pressure input interface;
32: a first shut-off valve; 33: a fourth stop valve;
4: a first pressure relief branch; 41: a pressure relief valve;
42: a second stop valve; 5: a second pressure relief branch;
51: a safety valve; 52: a third stop valve;
6: a bypass valve; 7: a housing;
71: a control panel; 8: an umbilical cable joint;
9: and (5) putting down the frame.
Detailed Description
In the related art, a pressure test is required by a ship and an integrated workover control system (IWOCS system). When the water depth is large, because the distance between the integrated workover control system and the umbilical cable to be tested is large, the umbilical cable carried by the integrated workover control system needs to stretch into the umbilical cable to be tested underwater, an underwater robot (ROV robot) is used for controlling the pipeline of the umbilical cable carried by the integrated workover control system to be butted with the pipeline of the umbilical cable to be tested, and the pipeline of the umbilical cable to be tested is pressurized through the pipeline of the umbilical cable carried by the integrated workover control system. After the pressurization is finished, the pressure of the pipeline of the to-be-tested umbilical cable is maintained for a period of time, the pressure drop in the pipeline of the to-be-tested umbilical cable is observed, if the pressure drop is large, the sealing performance of the to-be-tested umbilical cable is poor, and if the pressure drop is within a standard allowable range, the sealing performance of the to-be-tested umbilical cable is good. However, the umbilical cable of the control workover control system is used for carrying out pressure testing on the umbilical cable to be tested at the deep water, so that the construction difficulty is high, the integrated workover system needs to be supported by a ship, the construction difficulty is further increased, and the risk that the ship is anchored in a deep water area for a long time is high. Furthermore, the integrated workover system may also take up valuable deck space.
In order to solve the problems, the underwater umbilical cable pressure testing device provided by the embodiment of the invention comprises an umbilical cable joint, a testing manifold and a pressure pump unit, wherein the umbilical cable joint, the testing manifold and the pressure pump unit are positioned underwater during testing, the testing manifold is communicated with the umbilical cable joint, and the pressure pump unit can pressurize the testing manifold. When carrying out pressure test, near the umbilical cable that awaits measuring under the surface of water can be transferred to underwater umbilical cable pressure test device, and the umbilical cable that awaits measuring is close with umbilical cable joint distance, only needs to insert the plug at umbilical cable terminal on umbilical cable joint, suppresses to the test manifold through the pressure pump package to the pipeline that awaits measuring of the umbilical cable that awaits measuring suppresses, in order to carry out pressure test, need not to use extra umbilical cable, thereby has reduced the construction degree of difficulty. And during testing, the umbilical cable joint, the testing manifold and the pressure pump set are positioned underwater, ship support is not needed, the construction difficulty is further reduced, and the risk of pressure testing is reduced. In addition, the underwater umbilical cable pressure testing device provided by the embodiment of the invention is positioned underwater, and deck resources are not occupied.
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, an underwater umbilical cable pressure testing apparatus provided in an embodiment of the present invention includes an umbilical cable joint 8 located underwater during testing, a testing manifold 1, and a pressure pump unit, where the umbilical cable joint 8 is used to connect a pipe to be tested in an umbilical cable to be tested, the testing manifold 1 includes a connecting manifold 2, the connecting manifold 2 is connected to the umbilical cable joint 8, and the pressure pump unit is used to pressurize the testing manifold 1 so as to pressurize the pipe to be tested in the umbilical cable to be tested.
When carrying out pressure test, near the umbilical cable that awaits measuring under the surface of water can be transferred to underwater umbilical cable pressure test device for the umbilical cable that awaits measuring is close with umbilical cable joint 8 distance, and accessible underwater robot (ROV robot) inserts the terminal of umbilical cable on umbilical cable joint 8, and rethread pressure pump group suppresses to test manifold 1, thereby suppresses to the pipeline that awaits measuring of the umbilical cable that awaits measuring, in order to carry out pressure test. Set up like this, need not to use extra umbilical cable, reduced the construction degree of difficulty. And during the test, the umbilical cable joint 8, the test manifold 1 and the pressure pump set are positioned underwater, so that ship support is not needed, the construction difficulty is further reduced, and the risk of pressure test is reduced.
In a particular embodiment, the umbilical connector 8 is connected to a plug of the terminal of the umbilical to be tested. It should be noted that the terminal of the umbilical to be tested is one end of the umbilical to be tested, the plug of the terminal of the umbilical to be tested includes a plurality of interfaces of pipes to be tested, and the interfaces of the pipes to be tested are used for communicating the pipes to be tested with the pipes outside the umbilical to be tested. The to-be-tested pipeline in the to-be-tested umbilical cable comprises a hydraulic pipeline and a chemical agent pipeline, and the hydraulic pipeline can be divided into a hydraulic pipeline with higher working pressure and a hydraulic pipeline with lower working pressure. In a specific embodiment, the plug of the terminal of the umbilical to be tested and the umbilical joint 8 are both quick-connect plugs, and when the plug of the terminal of the umbilical to be tested is inserted into the umbilical joint 8, the pipe to be tested in the umbilical can be communicated with the test manifold 1.
As shown in fig. 2, the underwater umbilical pressure testing apparatus provided in the embodiment of the present invention includes an umbilical connector 8 located underwater during testing, where the umbilical connector 8 includes a plurality of low-pressure interfaces, a plurality of high-pressure interfaces, and a plurality of chemical agent interfaces, and each interface is correspondingly connected to one branch line. When the umbilical cable joint 8 is connected with a plug of an umbilical cable terminal to be tested, the interfaces of a plurality of hydraulic pipelines with lower working pressure in the umbilical cable to be tested are connected with a plurality of low-pressure interfaces in a one-to-one correspondence manner, the interfaces of a plurality of hydraulic pipelines with higher working pressure in the umbilical cable to be tested are connected with a plurality of high-pressure interfaces in a one-to-one correspondence manner, and the interfaces of a plurality of chemical agent pipelines in the umbilical cable to be tested are connected with a plurality of chemical agent interfaces in a one-to-one correspondence manner. By the arrangement, each pipeline to be tested can be correspondingly connected with one branch circuit in the test manifold 1, so that each pipeline to be tested can be subjected to pressure test respectively, and the sealing performance of each pipeline to be tested is detected. The number of the interfaces of the umbilical cable joint 8 can be adjusted according to the number of pipelines to be tested in the umbilical cable to be tested, so that the underwater umbilical cable pressure testing device can perform pressure testing on umbilical cables with different specifications. The above-described branch paths will be described later.
As shown in fig. 1, the underwater umbilical pressure testing apparatus provided in the embodiment of the present invention further includes a testing manifold 1, where the testing manifold 1 includes a connecting manifold 2, and the connecting manifold 2 is connected to the umbilical joint 8. Illustratively, the connection manifold 2 includes a plurality of connection pipes, the number of which is the same as the number of the interfaces of the umbilical joint 8, the plurality of connection pipes are in one-to-one correspondence with the plurality of interfaces of the umbilical joint 8, and the interfaces of the connection pipes and the umbilical joint 8 may be communicated through steel pipes or hoses.
Further, the test manifold 1 further comprises a pressure input branch 3, a first end of the pressure input branch 3 is provided with a pressure input interface 31 used for being connected with a pressure pump set, and a second end of the pressure input branch 3 is communicated with the connecting manifold 2. By means of the arrangement, when the umbilical cable to be tested is subjected to pressure test, the pressure pump set can be communicated with the pressure input interface 31 on the pressure input branch 3 through the underwater robot, and the umbilical cable is pressed to the connecting manifold 2 through the pressure input branch 3. Furthermore, the pipeline to be tested of the umbilical cable to be tested can be flushed through the pressure input branch 3. Wherein, the first end is the left end of the pressure input branch 3 in fig. 1, and the second end is the right end of the pressure input branch 3 in fig. 1.
The pressure input branch 3 is further provided with a first stop valve 32, and the first stop valve 32 is located between the first end and the second end of the pressure input branch 3. Through setting up first stop valve 32, can control the break-make of pressure input branch 3, after the pipeline that awaits measuring of umbilical cable that awaits measuring is suppressed through pressure input branch 3 and is accomplished, can close first stop valve 32, stop to await measuring the pipeline and suppress to make the pipeline that awaits measuring pressurize for a period, observe the pressure drop in the pipeline that awaits measuring, thereby accomplish the pressure test, detect the leakproofness of the pipeline that awaits measuring.
As shown in fig. 1, the test manifold 1 further includes a first pressure relief branch 4, one end of the first pressure relief branch 4 is communicated with the pressure input branch 3, and the communication position is a first communication position, and the first communication position is located between the first stop valve 32 and the second end of the pressure input branch 3. The other end of the first pressure relief branch 4 is communicated with the outside ocean, and a pressure relief valve 41 is arranged at one end of the first pressure relief branch 4 communicated with the outside ocean. In the process of pressure testing, the pressure release valve 41 can be actively opened through the underwater robot to release pressure to the test manifold 1, so that the situation that the pressure in the test manifold 1 and the pipeline to be tested in the umbilical cable is too high in the process of pressure testing, and the test manifold 1 and the pipeline structure to be tested are damaged is avoided. In one particular embodiment, the pressure relief valve 41 is a needle-type pressure relief valve.
The first pressure relief branch 4 is further provided with a second cut-off valve 42, and the second cut-off valve 42 is located between the pressure relief valve 41 and the first communication position. The on-off of the first pressure relief branch 4 can be controlled by providing the second cut-off valve 42.
The test manifold 1 further includes a second pressure relief branch 5, one end of the second pressure relief branch 5 is communicated with the pressure input branch 3, and the communication position is a second communication position, and the second communication position is located between the first stop valve 32 and the second end of the pressure input branch 3. The other end of the second pressure relief branch 5 is communicated with the outside ocean, and a safety valve 51 is arranged at one end of the second pressure relief branch 5 communicated with the outside ocean. Set up like this, at the in-process that carries out pressure test, if the pressure of second pressure release branch road 5 has exceeded the preset pressure of relief valve 51, relief valve 51 is automatic to be opened, and the test manifold 1 and the await measuring pipeline that awaits measuring of the umbilical cable of awaiting measuring pass through second pressure release branch road 5 pressure release, prevent among the pressure test process that the pressure in test manifold 1 and the awaiting measuring pipeline is too high, destroy test manifold 1 and the structure of awaiting measuring the pipeline of awaiting measuring. The preset pressure of the safety valve 51 can be set according to the bearable pressure of the test manifold 1 and the pipeline to be tested.
The second pressure relief branch 5 is also provided with a third shut-off valve 52, the third shut-off valve 52 being located between the relief valve 51 and the second communication. The second pressure relief branch 5 can be switched on and off by providing a third shut-off valve 52.
Referring to fig. 1, in some possible embodiments, the pressure input branch 3 is further provided with a fourth stop valve 33, and the fourth stop valve 33 is located between the second communication and the second end of the first communication close to the second end of the pressure input branch 3. After the pipeline to be tested of the umbilical cable to be tested is pressurized through the pressure input branch 3, the fourth stop valve 33 can be closed, the pipeline to be tested is pressurized for a period of time, and therefore the pressure drop in the pipeline to be tested is observed, and the sealing performance of the pipeline to be tested is detected.
And the fourth stop valve 33 is located between the second end and the communication position near the second end in the second communication position and the first communication position, so that the influence of the first pressure relief branch 4 and the second pressure relief branch 5 on the pressure maintaining of the pipeline to be tested can be prevented, and the deviation between the sealing performance of the pipeline to be tested obtained through detection and the actual sealing performance of the pipeline to be tested is large.
With reference to fig. 1, based on that the pipelines to be tested in the umbilical cable include hydraulic pipelines and chemical agent pipelines, the hydraulic pipelines can be divided into hydraulic pipelines with higher working pressure and hydraulic pipelines with lower working pressure, and the test manifolds 1 corresponding to the pipelines to be tested with different functions can be divided into a low-pressure test manifold 12, a high-pressure test manifold 11 and a chemical agent test manifold 13. The low-pressure test manifold 12 is used for performing pressure test on a hydraulic pipeline with lower working pressure in the umbilical cable to be tested; the high-pressure test manifold 11 is used for carrying out pressure test on a hydraulic pipeline with higher working pressure in the umbilical cable to be tested; the chemical agent test manifold 13 is used to perform pressure testing on the chemical agent pipeline in the umbilical cable to be tested.
It will be appreciated that the tubing used in the different test manifolds will be able to withstand different pressures and that the pressure preset for the relief valve 51 will vary from test manifold to test manifold. In a specific embodiment, the high pressure test manifold 11 uses tubing that can withstand a higher pressure than the low pressure test manifold 12, and the predetermined pressure of the relief valve 51 in the high pressure test manifold 11 is higher than the predetermined pressure of the relief valve 51 in the low pressure test manifold 12.
The underwater umbilical cable pressure testing device provided by the embodiment of the invention comprises at least one of a high-pressure testing manifold 11, a low-pressure testing manifold 12 and a chemical agent testing manifold 13, and the specific situation can be set according to the type of the pipeline included in the umbilical cable which is actually measured and the type of the pipeline which needs to be measured in the umbilical cable which is actually measured. As shown in fig. 1, in the present embodiment, the underwater umbilical pressure testing apparatus includes a high pressure testing manifold 11, a low pressure testing manifold 12, and a chemical agent testing manifold 13.
The high voltage test manifold 11 includes a plurality of high voltage branches 111, and each high voltage branch 111 includes an input terminal and an output terminal. A plurality of input ends of the plurality of high-pressure branch lines 111 are all communicated with the second end of the pressure input branch line 3 of the high-pressure test manifold 11, and a plurality of output ends of the plurality of high-pressure branch lines 111 are communicated with a plurality of high-pressure interfaces of the umbilical joint 8 in a one-to-one correspondence manner. Specifically, the output ends of the high-voltage branch lines 111 are in one-to-one correspondence with the high-voltage interfaces through part of the connecting pipes in the connecting manifold 2. So set up, when the umbilical that awaits measuring is connected with umbilical joint 8, the higher hydraulic pressure pipeline of each operating pressure of the umbilical that awaits measuring all accessible single high-pressure branch way 111 carries out the pressure test, the leakproofness of the higher hydraulic pressure pipeline of every operating pressure that can more accurate detection.
The low voltage test manifold 12 includes a plurality of low voltage branches 121, each low voltage branch 121 including an input and an output. A plurality of input ends of the low-pressure branch lines 121 are communicated with the second end of the pressure input branch line 3 of the low-pressure test manifold 12, and a plurality of output ends of the low-pressure branch lines 121 are communicated with a plurality of low-pressure interfaces of the umbilical joint 8 in a one-to-one correspondence manner. Specifically, the output ends of the low-pressure branches 121 are in one-to-one correspondence with the low-pressure ports through a part of the connecting pipes in the connecting manifold 2. So set up, when the umbilical that awaits measuring is connected with umbilical joint 8, the lower hydraulic pressure pipeline of each operating pressure of the umbilical that awaits measuring all accessible individual low pressure branch way 121 carries out the pressure test, the leakproofness of the lower hydraulic pressure pipeline of every operating pressure that can more accurate detection.
The chemical agent test manifold 13 includes a plurality of chemical agent branches 131, and each chemical agent branch 131 includes an input end and an output end. A plurality of input ends of the plurality of chemical agent branch paths 131 are all communicated with the second end of the pressure input branch 3 of the chemical agent test manifold 13, and a plurality of output ends of the plurality of chemical agent branch paths 131 are communicated with a plurality of chemical agent interfaces of the umbilical cable joint 8 in a one-to-one correspondence manner. Specifically, the output ends of the chemical agent branch lines 131 and the chemical agent interfaces are in one-to-one correspondence with each other through a part of the connection pipes in the connection manifold 2. So set up, when the umbilical of awaiting measuring is connected with umbilical joint 8, each chemical agent pipeline of the umbilical of awaiting measuring all can carry out the pressure test through an independent chemical agent branch road 131, the leakproofness of every chemical agent pipeline of detection that can be more accurate.
It is understood that the partial connection pipe connected to the low pressure branch line 121, the partial connection pipe connected to the high pressure branch line 111, and the partial connection pipe connected to the chemical agent branch line 131 are connection pipes connecting different portions in the manifold 2. The number of the low pressure branch line 121, the high pressure branch line 111, and the chemical agent branch line 131 may be set according to the number of the hydraulic pipes having a low working pressure, the hydraulic pipes having a high working pressure, and the chemical agent pipes in the umbilical cable, which are actually measured.
Further, each of the low pressure branch line 121, the high pressure branch line 111, and the chemical agent branch line 131 is provided with a branch valve 6. The on-off of each branch can be controlled by the branch valve 6. In the process of one-time pressure test, when only part of pipelines to be tested in the umbilical cable to be tested need to be tested, the branch lines corresponding to the part of the pipelines to be tested, which do not carry out the pressure test, in the umbilical cable to be tested are disconnected through the branch valve 6, and only the part of the pipelines to be tested, which carry out the pressure test in the umbilical cable to be tested, is opened, so that the cost of carrying out the pressure test is saved.
As shown in fig. 2, the underwater umbilical pressure testing apparatus provided by the embodiment of the present invention further includes a housing 7 and a lower rack 9, wherein the housing 7 is mounted on the lower rack 9, and the housing 7 is supported by the lower rack 9. The test manifold 1 is disposed within the housing 7, the umbilical connection 8 is disposed on the housing 7, and the pressure pump package is disposed outside of the housing 7.
The housing 7 includes a control panel 71 for controlling the operation of the test manifold 1, and specifically, the control panel 71 is provided with switches of the remaining valves of the test manifold 1 except the safety valve 51 and the pressure input interface 31. In the process of pressure testing, the shell 7 and the lower support 9 can be placed at the terminal close to the umbilical cable underwater, the plug of the terminal of the umbilical cable to be tested is connected with the umbilical cable connector 8 on the shell 7 through the underwater robot, the underwater robot is controlled to insert the hydraulic connector (hot tab) of the pressure pump set into the pressure input interface 31 on the control panel 71, and finally the switches of all valves on the control panel 71 are adjusted to control the on-off of all pipelines in the testing manifold 1, so that the pressure testing is completed.
The lower placing frame 9 can be of a carbon steel structure, and the outer surface of the lower placing frame 9 can be coated with anticorrosive paint. The carbon steel has low price, the cost can be reduced, and the corrosion-resistant paint is coated on the outer surface of the lower rack 9 to prevent the lower rack 9 from being corroded by seawater.
It will be appreciated that the dimensions of the housing 7 and the lowering frame 9 may be adjusted with reference to the water depth and the location of the umbilical termination.
In a specific embodiment, the underwater umbilical pressure test device further comprises a dustproof frame, and the dustproof frame is arranged below the lower frame 9. In the actual pressure testing process, the dustproof frame is firstly placed into the seabed, and then the lower placing frame 9 is erected above the dustproof frame. By means of the arrangement, the lowering frame 9 and the shell 7 can be far away from the sea, and the test manifold 1 is prevented from being blocked by seabed silt.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the system or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, the terms should not be construed as limiting the invention.
In the description of the present specification, references to "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An underwater umbilical cable pressure testing device is characterized by comprising an umbilical cable joint, a testing manifold and a pressure pump set, wherein the umbilical cable joint, the testing manifold and the pressure pump set are positioned underwater during testing;
the umbilical cable joint is used for connecting a pipeline to be tested in the umbilical cable to be tested;
the test manifold comprises a connecting manifold, and the connecting manifold is connected with the umbilical cable joint;
the pressure pump set is used for pressing the test manifold so as to press a pipeline to be tested in the umbilical cable to be tested;
the test manifold comprises a pressure input branch, a first end of the pressure input branch is provided with a pressure input interface, the pressure input interface is used for being connected with the pressure pump set, and a second end of the pressure input branch is communicated with the connecting manifold;
the pressure input branch is also provided with a first stop valve, and the first stop valve is positioned between the first end and the second end;
the test manifold further comprises a first pressure relief branch, one end of the first pressure relief branch is communicated with the pressure input branch, the communication position is a first communication position, and the first communication position is located between the first stop valve and the second end;
the other end of the first pressure relief branch is communicated with the external ocean, and a pressure relief valve is arranged at one end of the first pressure relief branch communicated with the external ocean.
2. The subsea umbilical pressure testing device of claim 1,
the first pressure relief branch is further provided with a second stop valve, and the second stop valve is located between the pressure relief valve and the first communication position.
3. The subsea umbilical pressure testing device of claim 2, wherein the test manifold further comprises a second pressure relief branch, one end of the second pressure relief branch being in communication with the pressure input branch and the communication being a second communication between the first stop valve and the second end;
the other end of the second pressure relief branch is communicated with the outside ocean, and a safety valve is arranged at one end of the second pressure relief branch communicated with the outside ocean;
the second pressure relief branch is further provided with a third stop valve, and the third stop valve is located between the safety valve and the second communication position.
4. The subsea umbilical pressure testing device of claim 3, wherein a fourth shut-off valve is further provided in the pressure input branch between the second communication and the second one of the first and second communication that is proximate the second end.
5. The subsea umbilical pressure testing device of any of claims 1-4, wherein the test manifolds are divided into a high pressure test manifold, a low pressure test manifold, and a chemical agent test manifold, the subsea umbilical pressure testing device comprising at least one of the high pressure test manifold, the low pressure test manifold, and the chemical agent test manifold;
the high-pressure test manifold is used for carrying out pressure test on a hydraulic pipeline with higher working pressure in the umbilical cable to be tested;
the low-pressure test manifold is used for carrying out pressure test on a hydraulic pipeline with lower working pressure in the umbilical cable to be tested;
the chemical agent test manifold is used for carrying out pressure test on a chemical agent pipeline in the umbilical cable to be tested.
6. The subsea umbilical pressure testing device of claim 5,
the umbilical cable connector comprises a plurality of low-pressure interfaces, a plurality of high-pressure interfaces and a plurality of chemical agent interfaces, and when the umbilical cable connector is connected with a plug of a terminal of the umbilical cable to be tested, the interfaces of a plurality of hydraulic pipelines with lower working pressure in the umbilical cable to be tested are correspondingly connected with the low-pressure interfaces one by one; the interfaces of a plurality of hydraulic pipelines with higher working pressure in the umbilical cable to be tested are connected with the high-pressure interfaces in a one-to-one correspondence manner; the interfaces of a plurality of chemical agent pipelines in the umbilical cable to be tested are connected with the plurality of chemical agent interfaces in a one-to-one correspondence manner;
the low-pressure test manifold comprises a plurality of low-pressure branches, a plurality of input ends of the low-pressure branches are communicated with the second end of the pressure input branch of the low-pressure test manifold, and a plurality of output ends of the low-pressure branches are communicated with the low-pressure interfaces in a one-to-one correspondence manner; each low-pressure branch is provided with a branch valve;
the high-pressure test manifold comprises a plurality of high-pressure branch lines, a plurality of input ends of the high-pressure branch lines are communicated with the second end of the pressure input branch line of the high-pressure test manifold, and a plurality of output ends of the high-pressure branch lines are communicated with the high-pressure interfaces in a one-to-one correspondence manner; each high-pressure branch is provided with a branch valve;
the chemical agent test manifold comprises a plurality of chemical agent branch paths, a plurality of input ends of the chemical agent branch paths are communicated with the second end of the pressure input branch path of the chemical agent test manifold, and a plurality of output ends of the chemical agent branch paths are communicated with a plurality of chemical agent interfaces in a one-to-one correspondence manner; and each chemical agent branch is provided with a branch valve.
7. The subsea umbilical pressure testing device of claim 6, further comprising a housing and a drop frame, the housing mounted on the drop frame, the test manifold disposed within the housing, the umbilical connection disposed on the housing, the pressure pump package disposed outside of the housing;
the casing includes and controls the panel, control the panel and be used for controlling the work of test manifold.
8. The underwater umbilical pressure test device of claim 7, further comprising a dust rack disposed below the lowering rack.
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| CN202011578443.0A CN112556937B (en) | 2020-12-28 | 2020-12-28 | Underwater umbilical cable pressure testing device |
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