CN110793698A - Dynamic flexible composite pipeline online tension monitoring device and monitoring method - Google Patents
Dynamic flexible composite pipeline online tension monitoring device and monitoring method Download PDFInfo
- Publication number
- CN110793698A CN110793698A CN201810871301.XA CN201810871301A CN110793698A CN 110793698 A CN110793698 A CN 110793698A CN 201810871301 A CN201810871301 A CN 201810871301A CN 110793698 A CN110793698 A CN 110793698A
- Authority
- CN
- China
- Prior art keywords
- tension
- pipeline
- sensor
- clock position
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 37
- 238000012806 monitoring device Methods 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 20
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 230000006378 damage Effects 0.000 claims description 9
- 239000013535 sea water Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000007774 longterm Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000008439 repair process Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 206010034719 Personality change Diseases 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 210000005069 ears Anatomy 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229920003225 polyurethane elastomer Polymers 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention provides a dynamic flexible composite pipeline online tension monitoring device and a monitoring method, wherein tension change and motion attitude change data of a vertical pipe are collected in real time by applying the dynamic flexible composite pipeline online tension monitoring device, and safety conditions of the vertical pipe are monitored and safety early warning is carried out when necessary through data recording and real-time program analysis, so that the operation safety of the deep water vertical pipe is improved.
Description
Technical Field
The invention relates to an underwater monitoring device and a monitoring method, in particular to an on-line tension monitoring device and a monitoring method for a dynamic flexible composite pipeline in underwater service.
Background
A large number of dynamic flexible composite pipelines are adopted in deepwater risers of offshore oil, the tension state monitoring of the dynamic flexible composite pipelines in deepwater environment is a difficult problem, and how to realize online real-time monitoring is very important for evaluating the service life of the risers through data obtained by monitoring. At present, data acquisition on an offshore riser requires long-time off-line monitoring, and a large amount of acquired data is stored. The frequency of the existing data acquisition is often preset by an acquisition program and cannot be modified in the acquisition process. The acquisition of marine riser motion information also faces the sealing problem of an acceleration sensor and an acquisition device, which troubles the large-scale popularization and use of dynamic flexible composite pipelines in engineering. How to realize the real-time tension monitoring of the dynamic flexible composite pipeline is a difficult problem to analyze the long-term service life of the riser through the data accumulation of actual monitoring. In order to solve the problem that data acquisition on the offshore riser needs long-time off-line monitoring at present, a large amount of acquired data is stored. The frequency of the existing data acquisition is often preset by an acquisition program and cannot be modified in the acquisition process. The acquisition of marine riser motion information also faces the sealing problem of the acceleration sensors and acquisition devices. How to realize the real-time tension monitoring of the dynamic flexible composite pipeline and analyze the long-term service life problem of the stand pipe through the data accumulation of actual monitoring.
It is in this context that the present patent application proposes a dynamic flexible composite pipeline on-line tension monitoring device.
Disclosure of Invention
The invention mainly aims to overcome the defects in the prior art and provide the dynamic flexible composite pipeline online tension monitoring device and the monitoring method, which are used for acquiring the tension change and motion attitude change data of the stand pipe in real time, monitoring the safety condition of the stand pipe through data recording and real-time program analysis, carrying out safety early warning when necessary and improving the operation safety of the deepwater stand pipe.
The invention is realized by the following technical scheme:
the dynamic flexible composite pipeline on-line tension monitoring device comprises a connecting frame, a cylinder assembly and a mounting base;
the connecting frame is a barrel-shaped structural part, flanges are arranged at the upper end and the lower end of the connecting frame, and connecting lug seats are arranged at the bottoms of the flanges at the lower end of the connector;
the cylinder component is of a cylinder structure and consists of a tension sensor, a displacement sensor, a connecting seat, a hinged shaft, a protective sleeve, a connecting bolt component, a tension sensor connecting shaft and a displacement sensor connecting shaft; the device comprises a connecting seat, a tension sensor and a displacement sensor, wherein a double-lug seat meeting the installation of the tension sensor and the displacement sensor is arranged on one side of the connecting seat, a single-lug plate connected with the connecting seat or the lug seat on the mounting base is arranged on the other side of the connecting seat, the lug seat of the tension sensor is connected with the double-lug seat meeting the installation of the tension sensor on the connecting seat through a tension sensor connecting shaft, the lug seat of the displacement sensor is connected with the double-lug seat meeting the installation of the displacement sensor on the connecting seat through the displacement sensor connecting shaft, the single-lug plate connected with the connecting seat on the connecting seat or the mounting base is connected through a hinged shaft, the protective sleeve is of a cylindrical structure with steps, one end of the protective sleeve is in an inner boss form, the other end of the protective sleeve is in an outward-, the protective sleeves are connected into a whole through the connecting bolt assembly.
The installation base is an annular structural member, and the upper portion of the installation base is provided with an ear seat.
The monitoring method of the dynamic flexible composite pipeline on-line tension monitoring device comprises the following steps:
1) the on-line tension monitoring device comprises a connecting frame, a dynamic flexible composite pipeline fixing device, a fixing device flange, a clamping groove, a fixing device flange, a clamping groove and a fixing device, wherein the clamping groove is clamped by the dynamic flexible composite pipeline fixing device;
2) when the connecting frame bears the load, the load is transmitted to the mounting base through the cylinder assembly; set up force sensor and displacement sensor in the barrel subassembly, when the link moved to one side a small amount under the dynamic load effect, the equal deformation of force sensor who moves the side and other positions produced current signal, the output current signal that different power values produced is different, the current signal of force sensor output is different, displacement sensor produces the connecting seat relative position because of the deformation of force sensor in the barrel subassembly and moves simultaneously, make displacement sensor all have signal output, according to the setting of demarcation, it is whole at the withdrawal to show the barrel subassembly when the current signal of displacement sensor output is less than the default, it is whole stretching out to show the barrel subassembly when the current signal of displacement sensor output is greater than the default, can judge the barrel subassembly condition of stretching out and withdrawing through feedback data. When the whole cylinder assembly is stretched or compressed, the inner boss is mechanically clamped with the pin on the outer side or the inner side of the round table of the connecting seat after the whole cylinder assembly is stretched or compressed for a certain length, the device is not stretched or compressed any more, the overload damage of the sensor can be avoided, and because the tension sensor only slightly deforms when being loaded, the tension sensor can continuously and stably acquire a tension signal and output data when the sensor is not damaged;
3) taking 6 sets of barrel assemblies which are uniformly distributed as an example, the barrel assemblies are numbered and divided according to a clock, wherein the first position is a 12 o 'clock position, and the rest are a 2 o' clock position, a 4 o 'clock position, a 6 o' clock position, an 8 o 'clock position and a 10 o' clock position in sequence. When the pipeline swings towards the 12 o 'clock direction, under the action of load, the barrel assembly at the 12 o' clock position is in a tensile state, the symmetrical barrel assembly at the 6 o 'clock position is in a compression state, and the connecting frame slightly inclines to the 12 o' clock position and is lifted a little. Similarly, when the pipeline swings towards the 5 o 'clock direction, under the action of a load, the cylinder assemblies at the 6 o' clock position and the 4 o 'clock position are in a tensile state, the cylinder assemblies at the 11 o' clock position and the 12 o 'clock position which are symmetrical are in a compression state, and the connecting frame slightly inclines to the 5 o' clock position and is slightly lifted. All the tension sensors bear tension or pressure for accumulation, the tension is a negative value, and the pressure is a positive value, so that the integral force value can be matched with the real-time tension. According to the characteristics of the structure, the force is decomposed, and the accurate numerical range of the actual tension data is finally provided;
4) because the sensors are all arranged in the safe protective cover, long-term problems can be monitored, analysis and data recording are carried out through special data analysis software according to monitored data output, and the condition of pipeline tension can be provided in real time. When the stress of the pipeline is changed greatly, the online tension monitoring device gives an alarm, and the specific alarm exceeding range can be given initially by design or according to the past practical operation experience. If the outside pipe wall is damaged suddenly appears in the pipeline, in a large amount of sea water constantly entered into the space within the pipeline outer wall this moment, pipeline external seal became invalid, sea water buoyancy reduced, and the tension that online tension monitoring device bore increases gradually, will surpass the restriction range of settlement in the short time and get into alarm range, and the system sends out the police dispatch newspaper, can in time correspond the processing according to FPSO field operation and emergency plan. If the pipeline has small damage to the outer side pipe wall and the seawater enters slowly, the tension borne by the online tension monitoring device can be gradually increased in the regular data analysis, and at the moment, pipeline inspection can be adopted, if a robot for underwater observation is adopted to inspect along the pipeline, a damage point is found in advance to carry out online repair, so that the safe operation of the pipeline is ensured.
Due to the adoption of the technical scheme, the invention has the following advantages: by acquiring the tension change data and the motion attitude change data of the vertical pipe in real time, monitoring the safety condition of the vertical pipe and carrying out safety early warning when necessary through data recording and real-time program analysis, the operation safety of the deep water vertical pipe is improved.
The invention is further illustrated with reference to the following figures and examples.
Drawings
FIG. 1 is an overall view of a monitoring system to which the present invention is applied;
FIG. 2 is an overall view of the on-line tension monitoring device of the present invention;
FIG. 3 is an overall view of the cartridge assembly;
fig. 4 is a schematic view of the cartridge assembly.
Detailed Description
The present invention is described in detail below with reference to the accompanying fig. 1-4.
The dynamic flexible composite pipeline online tension monitoring system shown in fig. 1 comprises: the dynamic flexible composite pipeline comprises a dynamic flexible composite pipeline 0, a bending reinforcer 1, an online tension monitoring device 2, a fixing device 3 and a joint 4. The dynamic flexible composite pipeline 0 and the joint 4 are installed before field construction according to the actual engineering conditions, the dynamic flexible composite pipeline 0 is designed and manufactured according to the difference of the flow rate, components, temperature, water depth, pressure and the like of a conveyed medium, generally has a multi-layer non-bonded composite hollow circular structure, and belongs to a special customized product. According to the characteristics of the dynamic flexible composite pipe 0, the joint 4 is custom-made according to the specific configuration of the dynamic flexible composite pipe 0, and the joint 4 and the dynamic flexible composite pipe 0 are assembled and tested at a pipe manufacturing plant, and then transported to an installation site for installation. The joint 4 is provided with a clamping groove for mounting and fixing, and after the clamping groove is clamped by the fixing device 3 in the form of two half-tiles, a flange hole on the fixing device 3 is connected with a connecting flange on the upper part of the on-line tension monitoring device 2. The common deep water riser is fixed on the offshore structure by clamping the clamping groove by the fixing device 3 and then fixing the deep water riser with the connecting structure on the offshore structure. When the dynamic flexible composite pipeline 0 swings with the waves and currents of the sea water, the load is finally transmitted to the joint 4, and finally transmitted to the offshore structure through the fixing device 3. The bending reinforcing device 1 is specially designed based on the appearance size and fatigue analysis characteristics of the dynamic flexible composite pipeline 0, adopts a cone-shaped barrel-shaped structure of a polyurethane elastomer value, an inner hole of the barrel-shaped structure is a through hole with a constant diameter, a small gap is reserved between the inner hole and the outside of the dynamic flexible composite pipeline 0 to meet the installation requirement, and the top of the barrel-shaped structure is a connecting flange and is connected to a flange correspondingly designed at the upper part of the online tension monitoring device 2 through bolts. When the dynamic flexible composite pipeline 0 has a large swing amplitude, the bending reinforcer 1 limits the swing amplitude to be further increased, and the polyurethane elastomer absorbs load through the elastic deformation of the polyurethane elastomer, so that the continuous bending deformation of the pipeline is limited, and the effect of protecting the dynamic flexible composite pipeline 0 is achieved. The online tension monitoring device 2 is a device which meets the installation requirement of the dynamic flexible composite pipeline 0 and collects the online tension change condition of the pipeline through a sensor in the online tension monitoring device, and the details are described in the following.
The dynamic flexible composite pipeline online tension monitoring device shown in fig. 2 and 3 comprises: a connecting frame 2.1, a cylinder component 2.2 and a mounting base 2.3. The connecting frame 2.1 is a metal welding structural member with flanges at the upper part and the lower part and a cylindrical middle part, the flange at the upper part is made of thick steel plates by cutting, the flange is manufactured according to the flange hole on the fixing device 3 in a matching way, and finally the flange and the flange on the fixing device 3 are fixed into a whole through bolts. The middle barrel is made of rolled steel plates, the specific height is made according to installation requirements, and the inner diameter of the barrel is correspondingly processed according to the size requirement of the joint 4 required by construction. The flange at the lower part is manufactured by cutting a thick steel plate, is designed and manufactured according to the size matching of the connecting flange of the bending reinforcement 1, and is finally fixed with the connecting flange of the bending reinforcement 1 into a whole through bolts. The bottom of the lower flange is provided with 6 sets of connecting lug seats which are uneven in the circumferential direction, the lug seats are manufactured according to the double-lug seat standard of the hydraulic oil cylinder, and the lug seats are connected with the lower flange into a whole through welding. The cylinder component 2.2 is a cylinder structure which is formed by integrally installing all detection components and parts and adopting ear seat hinged connection at two ends. The ear seats at the two ends of the cylinder component 2.2 are respectively connected with the connecting ear seats on the connecting frame 2.1 and the mounting base 2.3. The mounting base 2.3 is made of an annular steel plate, 6 sets of connecting lug seats which are uneven in the circumferential direction are arranged on the mounting base, the lug seats are manufactured according to the double-lug seat standard of the hydraulic oil cylinder, and the mounting base and the ring plate are connected into a whole through welding. The bottom of the annular steel plate is stably fixed with the deck surface of the offshore structure in a welding mode, and the purpose of finally transferring the dynamic flexible composite pipeline 0 to the offshore structure is achieved.
As shown in fig. 4, the cartridge assembly 2.2 is constituted by: tension sensor 2.2.1, displacement sensor 2.2.2, connecting seat 2.2.3, articulated shaft 2.2.4, protective sheath 2.2.5, connecting bolt subassembly 2.2.6, tension sensor connecting axle 2.2.7 and displacement sensor connecting axle 2.2.8. The tension sensor 2.2.1 and the displacement sensor 2.2.2 both adopt products applicable to offshore oil gas environment, and two ends of the tension sensor are connected with the connecting lug seats through connecting rods to form a connecting form that two ends can be hinged. The tension sensor 2.2.1 changes the strain device through the deformation of the structure when bearing the tensile load and the compressive load, and realizes the output of different currents under different pressures/tensions. The displacement sensor 2.2.2 adopts a slide wire form, the initial installation position is in the middle of the full stroke, different current signals are output when the device is integrally stretched and integrally compressed, and whether the tensile load or the compressive load borne by the tension sensor 2.2.1 can be judged according to a preset range interval. The connecting seat 2.2.3 is made of steel plates by welding or forging, one side of the ring plate is provided with a double-lug seat meeting the installation requirements of the tension sensor 2.2.1 and the displacement sensor 2.2.2, and the other side of the ring plate is provided with a single-lug plate connected with the connecting frame 2.1 or the 6 sets of connecting lug seats on the mounting base 2.3. The ear seat of the tension sensor 2.2.1 is connected with the ear seat of the double ears meeting the installation of the tension sensor 2.2.1 on the connecting seat 2.2.3 through the tension sensor connecting shaft 2.2.7, the two ends can be fixed in a nut or clamping plate mode, and the tension sensor connecting shaft 2.2.7 is limited not to be separated from the ear seat of the double ears. The ear seat of displacement sensor 2.2.2 passes through displacement sensor connecting axle 2.2.8 and satisfies the ears ear seat connection of displacement sensor 2.2.2 installation on connecting seat 2.2.3, and both ends can be the fixed of nut or cardboard form, and restriction displacement sensor connecting axle 2.2.8 does not deviate from ears ear seat can. The single ear otic placode that connecting seat 2.2.3 opposite side is connected through articulated shaft 2.2.4 with 6 sets of connection ear seats on link 2.1 or the installation base 2.3, and both ends can be the fixed of nut or cardboard form, and it can not deviate from the double ear seat to restrict articulated shaft 2.2.4. The protective sleeve 2.2.5 is of an integrally forged cylindrical structure with steps, and an inner boss at one end of the protective sleeve can limit the protective sleeve 2.2.5 from being transmitted into a round table of the connecting base 2.2.3 from the other side of the connecting base 2.2.3 to be limited by a single-lug plate connected with the connecting frame 2.1 or a 6-sleeve connecting lug seat on the mounting base 2.3. The other side is an outward-turned flange-shaped convex eave, the convex eave is provided with light holes which are circumferentially arranged, and the two sets of protective sleeves 2.2.5 are connected into a whole through connecting bolt components 2.2.6. When the barrel assembly 2.2 is integrally stretched, the inner boss is mechanically clamped with the outer side of the round table of the connecting seat 2.2.3 after the inner boss is integrally stretched for a section of length, the device is not stretched any more, and overload damage of the sensor is avoided. Similarly, when the whole compressed of barrel subassembly 2.2, the spacer pin of installation blocks with the inboard machinery of the 2.2.3 round platforms of connecting seat on the protective sheath 2.2.5 staving, and the device no longer compresses, avoids sensor overload damage. Protective sheath 2.2.5 not only provides mechanical protection force sensor 2.2.1 and displacement sensor 2.2.2's excessive deformation restriction, also protects the sensor inside its staving, avoids sea water or dust direct destruction, influences equipment safe operation. The barrel assembly 2.2 can be disassembled into unit devices by disassembling the limiting pins arranged on the barrel body of the connecting bolt assembly 2.2.6 and the protective sleeve 2.2.5, and the maintenance is convenient.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (2)
1. Dynamic flexible composite pipeline on-line tension monitoring device, including link, barrel subassembly and installation base, its characterized in that:
the connecting frame is a barrel-shaped structural part, flanges are arranged at the upper end and the lower end of the connecting frame, and connecting lug seats are arranged at the bottoms of the flanges at the lower end of the connector;
the cylinder component is of a cylinder structure and consists of a tension sensor, a displacement sensor, a connecting seat, a hinged shaft, a protective sleeve, a connecting bolt component, a tension sensor connecting shaft and a displacement sensor connecting shaft; the device comprises a connecting seat, a tension sensor and a displacement sensor, wherein a double-lug seat meeting the installation of the tension sensor and the displacement sensor is arranged on one side of the connecting seat, a single-lug plate connected with the connecting seat or the lug seat on the mounting base is arranged on the other side of the connecting seat, the lug seat of the tension sensor is connected with the double-lug seat meeting the installation of the tension sensor on the connecting seat through a tension sensor connecting shaft, the lug seat of the displacement sensor is connected with the double-lug seat meeting the installation of the displacement sensor on the connecting seat through the displacement sensor connecting shaft, the single-lug plate connected with the connecting seat on the connecting seat or the mounting base is connected through a hinged shaft, the protective sleeve is of a cylindrical structure with steps, one end of the protective sleeve is in an inner boss form, the other end of the protective sleeve is in an outward-, the protective sleeves are connected into a whole through the connecting bolt assembly;
the installation base is an annular structural member, and the upper portion of the installation base is provided with an ear seat.
2. A monitoring method using the dynamic flexible composite pipeline online tension monitoring device as claimed in claim 1, comprising the following steps:
1) the on-line tension monitoring device comprises a connecting frame, a dynamic flexible composite pipeline fixing device, a fixing device flange, a clamping groove, a fixing device flange, a clamping groove and a fixing device, wherein the clamping groove is clamped by the dynamic flexible composite pipeline fixing device;
2) when the connecting frame bears the load, the load is transmitted to the mounting base through the cylinder assembly; the barrel assembly is internally provided with a tension sensor and a displacement sensor, when the connecting frame moves to one side a little under the action of dynamic load, the tension sensors at the moving side and other positions are deformed to generate current signals, the output current signals generated by different force values are different, the current signals output by the tension sensors are different, meanwhile, the displacement sensor generates relative position movement of the connecting seat due to the deformation of the tension sensor in the barrel assembly, so that the displacement sensors all have signal output, according to the calibrated setting, when the current signal output by the displacement sensor is smaller than a preset value, the barrel assembly is shown to be integrally retracted, when the current signal output by the displacement sensor is larger than the preset value, the barrel assembly is shown to be integrally extended, and the conditions of the extended and retracted barrel assemblies can be judged through feedback data; when the whole cylinder assembly is stretched or compressed, the inner boss is mechanically clamped with the pin on the outer side or the inner side of the round table of the connecting seat after the whole cylinder assembly is stretched or compressed for a certain length, the device is not stretched or compressed any more, the overload damage of the sensor can be avoided, and because the tension sensor only slightly deforms when being loaded, the tension sensor can continuously and stably acquire a tension signal and output data when the sensor is not damaged;
3) taking 6 sets of barrel assemblies which are uniformly distributed as an example, numbering the barrel assemblies, dividing the barrel assemblies according to a clock, wherein the first position is a 12 o 'clock position, and the rest are a 2 o' clock position, a 4 o 'clock position, a 6 o' clock position, an 8 o 'clock position and a 10 o' clock position in sequence; when the pipeline swings towards the 12 o 'clock direction, under the action of load, the barrel assembly at the 12 o' clock position is in a tensile state, the symmetrical barrel assembly at the 6 o 'clock position is in a compression state, and the connecting frame slightly inclines to the 12 o' clock position and is lifted a little; similarly, when the pipeline swings towards the 5 o 'clock direction, under the action of a load, the cylinder assemblies at the 6 o' clock position and the 4 o 'clock position are in a tensile state, the cylinder assemblies at the symmetrical 11 o' clock position and the 12 o 'clock position are in a compression state, and the connecting frame slightly inclines to the 5 o' clock position and is lifted a little; all the tension sensors bear tension or pressure for accumulation, the tension is a negative value, and the pressure is a positive value, so that the integral force value can be matched with the real-time tension; according to the characteristics of the structure, the force is decomposed, and the accurate numerical range of the actual tension data is finally provided;
4) because the sensors are all arranged in the safe protective cover, long-term problems can be monitored, analysis and data recording are carried out through special data analysis software according to monitored data output, and the pipeline tension condition can be provided in real time; when the stress of the pipeline is greatly changed, the online tension monitoring device gives an alarm, and the specific alarm exceeding range can be given initially or according to the past practical operation experience; if the outer pipe wall of the pipeline is suddenly damaged, a large amount of seawater continuously enters a space inside the outer wall of the pipeline, the external seal of the pipeline fails, the buoyancy of the seawater is reduced, the tension borne by the online tension monitoring device is gradually increased, the online tension monitoring device exceeds a set limit range in a short time and enters an alarm range, and the system gives an alarm and can perform corresponding treatment in time according to FPSO (floating production storage and offloading) field operation and emergency schemes; if the pipeline has small damage to the outer side pipe wall and the seawater enters slowly, the tension borne by the online tension monitoring device can be gradually increased in the regular data analysis, and at the moment, pipeline inspection can be adopted, if a robot for underwater observation is adopted to inspect along the pipeline, a damage point is found in advance to carry out online repair, so that the safe operation of the pipeline is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871301.XA CN110793698B (en) | 2018-08-02 | 2018-08-02 | Dynamic flexible composite pipeline online tension monitoring device and monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871301.XA CN110793698B (en) | 2018-08-02 | 2018-08-02 | Dynamic flexible composite pipeline online tension monitoring device and monitoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110793698A true CN110793698A (en) | 2020-02-14 |
| CN110793698B CN110793698B (en) | 2024-01-30 |
Family
ID=69425067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810871301.XA Active CN110793698B (en) | 2018-08-02 | 2018-08-02 | Dynamic flexible composite pipeline online tension monitoring device and monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110793698B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189036A (en) * | 2023-09-12 | 2023-12-08 | 大庆石油管理局有限公司 | Tower type oil pumping unit counterweight guiding device and installation and adjustment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060065401A1 (en) * | 2004-09-28 | 2006-03-30 | John Allen | System for sensing riser motion |
| US20080304916A1 (en) * | 2007-06-11 | 2008-12-11 | Gerald Crotwell | Pull-style tensioner system for a top-tensioned riser |
| CN107478508A (en) * | 2017-07-04 | 2017-12-15 | 国家海洋局第二海洋研究所 | The complicated bend experimental rig of deep water top tension type vertical pipe |
| CN208653696U (en) * | 2018-08-02 | 2019-03-26 | 天津市海王星海上工程技术股份有限公司 | Dynamic flexibility compound pipe on-line tension monitoring device |
-
2018
- 2018-08-02 CN CN201810871301.XA patent/CN110793698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060065401A1 (en) * | 2004-09-28 | 2006-03-30 | John Allen | System for sensing riser motion |
| US20080304916A1 (en) * | 2007-06-11 | 2008-12-11 | Gerald Crotwell | Pull-style tensioner system for a top-tensioned riser |
| CN107478508A (en) * | 2017-07-04 | 2017-12-15 | 国家海洋局第二海洋研究所 | The complicated bend experimental rig of deep water top tension type vertical pipe |
| CN208653696U (en) * | 2018-08-02 | 2019-03-26 | 天津市海王星海上工程技术股份有限公司 | Dynamic flexibility compound pipe on-line tension monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117189036A (en) * | 2023-09-12 | 2023-12-08 | 大庆石油管理局有限公司 | Tower type oil pumping unit counterweight guiding device and installation and adjustment method |
| CN117189036B (en) * | 2023-09-12 | 2024-03-29 | 大庆石油管理局有限公司 | Tower type oil pumping unit counterweight guiding device and installation and adjustment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110793698B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112924073B (en) | Strain type bolt pretightening force gasket sensor based on cantilever structure increase deformation | |
| CN107515150B (en) | Comprehensive test experimental device for mechanical properties of marine pipeline | |
| EP2489824B1 (en) | Scuttle for the monitoring and inspection of a flexible riser | |
| CN109058333B (en) | Disc brake for monitoring disc spring force in real time and monitoring method | |
| EP2489911B1 (en) | Pipe sealing | |
| US20220136944A1 (en) | Torque and Combined Load Fixture and Test Method | |
| EP3642594B1 (en) | Pipe testing method and apparatus | |
| CN110793698A (en) | Dynamic flexible composite pipeline online tension monitoring device and monitoring method | |
| CN107701907B (en) | Flange with anti-skid groove type gasket and pressure sensor and manufacturing method | |
| CN208653696U (en) | Dynamic flexibility compound pipe on-line tension monitoring device | |
| WO2020037388A1 (en) | System for monitoring the integrity of risers and maritime structures using deformation sensors installed by clamps, and methods for installing and calibrating the pre-tension on deformation sensors for monitoring the integrity of risers | |
| US4120230A (en) | Self-straining bolts | |
| US20160326861A1 (en) | Apparatus and Method for Monitoring the Mechanical Properties of Subsea Longitudinal Vertical Components in Offshore Drilling and Production Applications | |
| RU2701756C1 (en) | Test bench for internal pressure testing of deepwater apparatus modules | |
| CN109577881B (en) | Automatic control method of well control and lifting equipment based on wireless sensing | |
| CN202836837U (en) | Monitoring device for underwater bolt fastening state | |
| CN201653690U (en) | Bearing detector for sintering pallet | |
| CN211978192U (en) | Adjustable and replaceable Harvard type pressure sensor | |
| CN113153727A (en) | Fracturing pump monitoring system and method | |
| GB1582616A (en) | Liquid filled flexible conduit joint | |
| NO20162062A1 (en) | Ram blowout preventer pistion rod subassembly | |
| KR101708825B1 (en) | Module of variable temporary retaning wall | |
| US4591191A (en) | Mechanical coupling device for immersed pipelines | |
| CN106873100B (en) | Wall sealing structure is worn to optical cable under water | |
| KR20150039115A (en) | Rudder for ships |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |