CN207036457U - A kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement - Google Patents
A kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement Download PDFInfo
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- CN207036457U CN207036457U CN201721025361.7U CN201721025361U CN207036457U CN 207036457 U CN207036457 U CN 207036457U CN 201721025361 U CN201721025361 U CN 201721025361U CN 207036457 U CN207036457 U CN 207036457U
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- pipeline
- harvester
- axial orientation
- outlet
- fuel tank
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Abstract
The utility model discloses a kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement, including test flume, oil transporting appliance, outlet line, return line, import harvester, export harvester and test petroleum pipeline, device novelty can apply pulling force while pipeline inner loop deep fat to pipeline, and pulling force size can adjust, reduction submerged pipeline is produced the situation of axial orientation displacement by steel catenary riser tension force effect, the influence of rule is axially moved so as to study differential tension size to pipeline, the device can also be accurately controlled the oil speed for being passed through pipeline simultaneously, oil temperature, so as to obtain the corresponding temperature variation curve of pipeline, further measure influence of the different temperatures change condition to pipeline axial orientation displacement.
Description
Technical field
The invention belongs under offshore oil and gas Transportation Engineering field, more particularly to a kind of consideration steel catenary riser tension force effect
The experimental rig of pipeline axial orientation displacement.
Background technology
With the further exploitation of China's offshore oil and gas resource, offshore oil and gas transport is also faced with bigger test.Seabed
The Main Means that petroleum pipeline transports as oil gas, kilometers up to a hundred are, and because the depth of water limits, pipeline maintainance is difficult, one
Accident occurs for denier, and economy, environment, ecology etc. will be caused to lose in many ways, cause irremediable consequence.Therefore should be in design rank
Section, system research is carried out to pipeline, potential safety hazard is analyzed, ensures being smoothed out for production.The axial orientation movement of pipeline is deep
The new problem occurred in extra large pipe engineering.The usual one end connection well head of submerged pipeline, one end connection steel catenary riser, by oil gas
It is transported to floating structure.In recent years, scholars, which study, finds that one end is dropped by steel catenary riser tension force effect submerged pipeline in heating
In warm working cycles, it may occur that point to the axial displacement of tension side, this phenomenon is referred to as the axial orientation movement of pipeline
(pipeline walking).The measured data of submerged pipeline discloses, every kilometer of submerged pipeline in the temperature-fall period that once heats up,
Can axially move several tens cm, and several meters can reach in whole its axial internal clearance of submerged pipeline service phase, can cause with
There are the harmful effects such as excessive, the catenary riser forfeiture tension force of stress in the threeway/four-way or bridging pipeline of pipeline link.Therefore,
The lower steel catenary riser tension force effect of temperature and pressure effect causes axial orientation movement to be the problem of deep-sea pipeline designs have to consider.
At present, because oil temperature is whard to control, experiment size is larger, native face is not easy the factor such as smooth in experiment, Most scholars are to pipeline
The research of axial orientation movement law rests on the theoretical or numerical analysis stage.However, test method simulated sea bottom pipeline is axially fixed
To displacement, Practical Project more can be really reduced, is the indispensable link of prediction of submerged pipeline axial orientation displacement.
The content of the invention
Instant invention overcomes in the prior art the shortcomings that, there is provided one kind consider steel catenary riser tension force effect underground pipelines
The experimental rig of axial orientation displacement.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement, including test flume,
Oil transporting appliance, outlet line, return line, import harvester, outlet harvester and test petroleum pipeline, test petroleum pipeline are set
It is placed in test flume, import harvester and outlet harvester, oil transporting appliance is respectively arranged with the both ends of test petroleum pipeline
It is connected by outlet line with import harvester, passes through return line and outlet harvester；
The cell body bottom of test flume is provided with safety glass, is covered with cell body by upright supports, the both sides of cell body axial direction
Soil layer, pipeline road are positioned on soil layer, are provided at both ends with support frame in cell body, are set respectively on the support frame at both ends
Import harvester and outlet harvester, the import harvester and outlet harvester are by slide rail, sliding block, connection
Set, electric cylinder, pulling force sensor, temperature sensor and laser displacement sensor are formed, the both ends of pipeline road respectively with import
Harvester is connected with the adapter sleeve of outlet harvester；
The annexation of each part of import harvester is：Slide rail is arranged on support frame, is provided with slide rail
Sliding block, sliding block top are connected with adapter sleeve, and electric cylinder is arranged on slide rail to be connected with sliding block, and apply outwards constant to sliding block
Pulling force (sliding block drives adapter sleeve thereon, i.e., applies outside constant force to the test petroleum pipeline being connected with adapter sleeve), even
The inside side of female connector is connected with test petroleum pipeline, and the outside side of adapter sleeve is sequentially connected temperature sensor, pulling force sensor and gone out
Oil pipe line, the outlet harvester and import harvester have identical structure；
It is also equidistant on test petroleum pipeline in addition to being arranged at the temperature sensor of test petroleum pipeline inlet and outlet
SMD temperature sensor is provided with, to determine the pipeline change of temperature along journey during in high temperature oil product, in cunning
Laser displacement sensor is provided with rail, for measuring displacement of the sliding block on slide rail in experimentation, the displacement is due to
Caused by the expansion for testing petroleum pipeline；
Oil transporting appliance includes upper strata fuel tank, middle level service tank and lower floor's fuel tank, lower floor's fuel tank connection outlet line, upside
Fuel tank connects return line, and lower floor's fuel tank is used to be incubated test oil and be passed through pipeline, and upper strata fuel tank is used for after collecting backflow
Oil product, middle level service tank is made up of two isometric small reservoirs, and two small reservoirs pass through independent connection respectively
Pipeline is connected with upper strata fuel tank and lower floor's fuel tank, and electric heater unit is respectively arranged with two small reservoirs, for alternately
Receive the test oil of upper strata fuel tank outflow and preheated, the test oil of lower floor's fuel tank is kept stable temperature；
In the above-mentioned technical solutions, the length of the cell body is 9-9.5m, width 0.5-1m, is highly 0.5-1m.
In the above-mentioned technical solutions, cell body bottom parallel is furnished with two row's columns, and quantity is 11-12 groups, and each group is stood
It is spaced set between post.
In the above-mentioned technical solutions, the safety glass is transparent to be easy to viewing test soil thickness and pipeline to transport
The dynamic disturbance to the soil body.
In the above-mentioned technical solutions, the range of the electric cylinder is 100N, precision 1N.
In the above-mentioned technical solutions, two proportioning valves of size are provided with the exit of lower floor's fuel tank, for adjusting
Extraction rate, make Extraction rate control in 5mL/s to 1L/s.
In the above-mentioned technical solutions, the laser displacement sensor is adopted instrument by number and is connected with PC ends, measures real-time monitoring
Data.
In the above-mentioned technical solutions, the SMD temperature sensor is equidistant is arranged on pipeline road, and spacing is
0.8-1m。
It is a kind of consider steel catenary riser tension force effect underground pipelines axial orientation displacement experimental rig when being tested,
Carried out according to the following steps：
Petroleum pipeline is connected with experiment pipeline, oil temperature preheating device is opened, oil temperature is heated to test required temperature, then
Connection sensor, number adopt instrument and PC ends, after completing installment work, open control cabinet, the pulling force that setting electric cylinder loads to pipeline
Size, apply axial tension (this value of thrust is less than the maximum earth resistance that pipeline is subject to) to pipeline, then, regulation lower floor fuel tank
Extraction rate, open fuel-displaced valve and start oil transportation (two small reservoirs of middle level service tank receive respectively during oil transportation
The oil product that upper strata fuel tank flows down, when a fuel tank heats to oil product wherein, another fuel tank persistently receives flowing down for upper strata fuel tank
Oil product, this holding oil product that can imitate of design keeps stationary temperature in transportation), pipeline temperature is determined during experiment
Degree, when no longer significant change occurs for line temperature curve, closes fuel-displaced valve, pipeline is naturally cooled to its internal oil product
Room temperature (25-30 degrees Celsius), gather the temperature change of pipeline during this and displacement vertically.
According to research purpose, the parameters such as pulling force size, Extraction rate, setting oil temperature can be changed, above-mentioned experiment is repeated several times,
Analyze under steel catenary riser tension force effect, the changing rule of submerged pipeline axial orientation displacement.
Compared with prior art, the beneficial effects of the invention are as follows：
Device novelty can apply pulling force, and pulling force big I while pipeline inner loop deep fat to pipeline
Regulation, reduction submerged pipeline is produced the situation of axial orientation displacement by steel catenary riser tension force effect, so as to study not
The influence of rule is axially moved to pipeline with Tensity size, while the device can also be accurately controlled the oil speed for being passed through pipeline, oil
Temperature, so as to obtain the corresponding temperature variation curve of pipeline, different temperatures change condition is further measured to pipeline axial orientation position
The influence of shifting.
Brief description of the drawings
Fig. 1 is the overall side structure schematic view of the present invention.
Fig. 2 is test flume of the present invention and harvester structural representation.
For oil-feed harvester structural representation in the present invention, (fuel-displaced harvester has phase to Fig. 3 with oil-feed harvester
Same structure).
Fig. 4 is oil transporting appliance structural representation in the present invention.
Wherein, 1 is test flume, and 1-1 is cell body, and 1-2 is safety glass, and 1-3 is column, and 1-4 is support frame, and 1-5 is side
Dividing plate, 2 be oil transporting appliance, and 2-1 is upper strata fuel tank, and 2-2 is middle level service tank, and 2-3 is lower floor's fuel tank, and 2-4 is proportioning valve, 2-
5 be connecting line, and 2-6 is electric heater unit, and 3 be import harvester, and 3-1 is slide rail, and 3-2 is sliding block, and 3-3 is adapter sleeve,
3-4 is electric cylinder, and 3-5 is pulling force sensor, and 3-6 is temperature sensor, and 3-7 is laser displacement sensor, and 4 be outlet line, 5
It is test petroleum pipeline for return line, 6,7 be outlet harvester.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in drawings, a kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement,
It is defeated including test flume 1, oil transporting appliance 2, outlet line 4, return line 5, import harvester 3, outlet harvester 7 and test
Oil pipe 6, test petroleum pipeline are arranged in test flume, and import harvester and outlet are respectively arranged with the both ends of test petroleum pipeline
Harvester, oil transporting appliance are connected by outlet line with import harvester, pass through return line and outlet harvester；
The cell body 1-1 bottoms of test flume are supported by column 1-3, and the both sides of cell body axial direction are provided with safety glass 1-2, in groove
Soil layer is covered with vivo, pipeline road is positioned on soil layer, is provided at both ends with support frame 1-4 in cell body, the support at both ends
Import harvester and outlet harvester are set respectively on frame, and the import harvester and outlet harvester have identical
Structure, by slide rail 3-1, sliding block 3-2, adapter sleeve 3-3, electric cylinder 3-4, pulling force sensor 3-5, temperature sensor 3-6 and
Laser displacement sensor 3-7 is formed, the both ends of pipeline road respectively with import harvester and the adapter sleeve of outlet harvester
It is connected；
The annexation of each part of import harvester is：Slide rail is arranged on support frame, is provided with slide rail
Sliding block, sliding block top are connected with adapter sleeve, and electric cylinder is arranged on slide rail to be connected with sliding block, and apply outwards constant to sliding block
Pulling force (sliding block drives adapter sleeve thereon, i.e., applies outside constant force to the test petroleum pipeline being connected with adapter sleeve), even
The inside side of female connector is connected with test petroleum pipeline, and the outside side of adapter sleeve is sequentially connected temperature sensor, pulling force sensor and gone out
Oil pipe line, the outlet harvester and import harvester have identical structure；
It is also equidistant on test petroleum pipeline in addition to being arranged at the temperature sensor of test petroleum pipeline inlet and outlet
SMD temperature sensor is provided with, to determine the pipeline change of temperature along journey during in high temperature oil product, in cunning
Laser displacement sensor is provided with rail, for measuring displacement of the sliding block on slide rail in experimentation, the displacement is due to
Caused by the expansion for testing petroleum pipeline；
Oil transporting appliance includes upper strata fuel tank 2-1, middle level service tank 2-2 and lower floor fuel tank 2-3, and lower floor's fuel tank connection is fuel-displaced
Pipeline, upside fuel tank connection return line, lower floor's fuel tank are used to be incubated test oil and be passed through pipeline, and upper strata fuel tank is used to receive
Oil product after collection backflow, middle level service tank are made up of two isometric small reservoirs, and two small reservoirs are respectively by only
Vertical connecting line 2-5 is connected with upper strata fuel tank and lower floor's fuel tank, and electrical heating dress is respectively arranged with two small reservoirs
2-6 is put, for alternately receiving the test oil of upper strata fuel tank outflow and being preheated, keeps the test oil of lower floor's fuel tank
Stable temperature；
In the above-mentioned technical solutions, the length of the cell body is 9m, width 0.5m, is highly 0.5m.
In the above-mentioned technical solutions, cell body bottom parallel is furnished with two row's columns, and quantity is 11 groups, each group column it
Between be spaced set.
In the above-mentioned technical solutions, the safety glass is transparent to be easy to viewing test soil thickness and pipeline to transport
The dynamic disturbance to the soil body.
In the above-mentioned technical solutions, the range of the electric cylinder is 100N, precision 1N.
In the above-mentioned technical solutions, two proportioning valves of size are provided with the exit of lower floor's fuel tank, for adjusting
Extraction rate, make Extraction rate control in 5mL/s to 1L/s.
In the above-mentioned technical solutions, the laser displacement sensor is adopted instrument by number and is connected with PC ends, measures real-time monitoring
Data.
In the above-mentioned technical solutions, the SMD temperature sensor is equidistant is arranged on pipeline road, and spacing is
0.8m。
Embodiment：
This test intended research pipeline one side is by under 50N pulling force effects, being passed through continuously and healthily 80 DEG C of conduction oils, pipeline axle
To orientation displacement law.
Sand used in experiment：From the Bohai Sea sea sand of homogeneous, through measuring sand maximum dry density 1732kg/m3, minimum dry
Density 1555kg/m3, then according to Dr=0.6 (density 1657kg/m3) soil sample is prepared, the method for raining inserts test flume.
Pipeline：9 meters of long aluminum pipes are selected in experiment, pipeline external diameter 36mm, internal diameter 3mm, 2.32*10-5/ DEG C of thermal coefficient of expansion.Bag
Include at two-end-point, paste 1 SMD temperature sensor every 1 meter on pipeline, totally 10 SMD temperature sensors.Will sensing
Device is connected with data collecting instrument and PC ends.
Test oil：Test oil is conduction oil, i.e. GB/T 4016-1983《Oil product vocabulary of terms》In " heat carrier
Oil ", for the specialized oil product of a kind of better heat stability of indirect transfer heat, the property with heat resistanceheat resistant cracking and chemical oxidation
Can, heat transfer efficiency is good, rapid heat dissipation, and heat endurance is good.The present embodiment selects alkyl benzene-type (benzenoid form) conduction oil, purchased from Beijing swallow
Xin Lian petrochemical industries Co., Ltd, model YD-340.
Experimental stage：Pipeline is positioned on sand, and both ends are connected with platform, and is sealed interface with adhesive waterproof tape, is protected
Oil product is not excessive during confirmatory test.Oil tank heating apparatus is opened, conduction oil is preheated to 80 DEG C.After starting sampling, operation control
Platform processed, apply pulling force to entering oily side, and it is 50N to observe PC ends pull-up force snesor registration.Proportioning valve is opened, the fast 1L/s of oil is rapid
Pipeline is passed through, both ends ordinary temp sensor measures is no more than 1 DEG C into oil, oil outlet temperature difference, you can thinks that oil temperature passes through pipeline
When uniformly heated up without significant change, i.e. pipeline, when line temperature it is stable at 80 DEG C after, close fuel tank valve, make pipeline and remnants
The oil product temperature natural heat dissipation of in-line.During heating cooling, line expansion, drive both ends platform slip is shunk, collection is whole
Process laser displacement sensor reading, as pipeline both ends change in displacement.After temperature is down to room temperature, oil return valve, emptying are opened
Remaining conduction oil in pipe.Above steps may be repeated multiple times, obtains accumulative displacement amount.Whole process, observable go out pipeline motion to soil
The range of disturbance of body.
After experiment：Instrument is arranged, processing data, after 10 circulations, pipeline produces 5-10cm net displacement to tension side
Amount.
The present invention is described in detail above, but the content is only presently preferred embodiments of the present invention, it is impossible to recognized
For the practical range for limiting the present invention.Any changes and modifications in accordance with the scope of the present application, all should still it return
Belong within the patent covering scope of the present invention.
Claims (8)
- A kind of 1. experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement, it is characterised in that：Bag Test flume, oil transporting appliance, outlet line, return line, import harvester, outlet harvester and test petroleum pipeline are included, is surveyed Examination petroleum pipeline is arranged in test flume, and import harvester and outlet collection dress are respectively arranged with the both ends of test petroleum pipeline Put, oil transporting appliance is connected by outlet line with import harvester, passes through return line and outlet harvester；The cell body bottom of test flume is provided with safety glass, soil layer is covered with cell body by upright supports, the both sides of cell body axial direction, Pipeline road is positioned on soil layer, is provided at both ends with support frame in cell body, import is set respectively on the support frame at both ends Harvester and outlet harvester, the import harvester and outlet harvester are by slide rail, sliding block, adapter sleeve, electricity Dynamic cylinder, pulling force sensor, temperature sensor and laser displacement sensor are formed, and the both ends of pipeline road gather with import respectively to be filled Put and be connected with the adapter sleeve of outlet harvester；The annexation of each part of import harvester is：Slide rail is arranged on support frame, and sliding block is provided with slide rail, Sliding block top is connected with adapter sleeve, and electric cylinder is arranged on slide rail to be connected with sliding block, and applies outside constant force to sliding block, The inside side of adapter sleeve with test petroleum pipeline be connected, the outside side of adapter sleeve be sequentially connected temperature sensor, pulling force sensor and Outlet line, the outlet harvester and import harvester have identical structure；In addition to being arranged at the temperature sensor of test petroleum pipeline inlet and outlet, the also equidistant setting on test petroleum pipeline There is SMD temperature sensor, laser displacement sensor is provided with slide rail；Oil transporting appliance includes upper strata fuel tank, middle level service tank and lower floor's fuel tank, lower floor's fuel tank connection outlet line, upside fuel tank Return line is connected, lower floor's fuel tank is used to be incubated test oil and be passed through pipeline, and upper strata fuel tank is used to collect the oil after backflow Product, middle level service tank are made up of two isometric small reservoirs, and two small reservoirs pass through independent connecting line respectively It is connected with upper strata fuel tank and lower floor's fuel tank, electric heater unit is respectively arranged with two small reservoirs.
- A kind of 2. experiment for considering steel catenary riser tension force effect underground pipelines axial orientation displacement according to claim 1 Device, it is characterised in that：The length of the cell body is 9-9.5m, width 0.5-1m, is highly 0.5-1m.
- A kind of 3. experiment for considering steel catenary riser tension force effect underground pipelines axial orientation displacement according to claim 1 Device, it is characterised in that：Cell body bottom parallel is furnished with two row's columns, and quantity is 11-12 groups, be between each group column etc. Spacing is set.
- A kind of 4. experiment for considering steel catenary riser tension force effect underground pipelines axial orientation displacement according to claim 1 Device, it is characterised in that：The safety glass is transparent.
- A kind of 5. experiment for considering steel catenary riser tension force effect underground pipelines axial orientation displacement according to claim 1 Device, it is characterised in that：The range of the electric cylinder is 100N, precision 1N.
- A kind of 6. experiment for considering steel catenary riser tension force effect underground pipelines axial orientation displacement according to claim 1 Device, it is characterised in that：Two proportioning valves of size are provided with the exit of lower floor's fuel tank, for adjusting Extraction rate, Make Extraction rate control in 5mL/s to 1L/s.
- A kind of 7. experiment for considering steel catenary riser tension force effect underground pipelines axial orientation displacement according to claim 1 Device, it is characterised in that：The laser displacement sensor is adopted instrument by number and is connected with PC ends, measures Real-time Monitoring Data.
- A kind of 8. experiment for considering steel catenary riser tension force effect underground pipelines axial orientation displacement according to claim 1 Device, it is characterised in that：The SMD temperature sensor is equidistant to be arranged on pipeline road, spacing 0.8-1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721025361.7U CN207036457U (en) | 2017-08-16 | 2017-08-16 | A kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721025361.7U CN207036457U (en) | 2017-08-16 | 2017-08-16 | A kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement |
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| Publication Number | Publication Date |
|---|---|
| CN207036457U true CN207036457U (en) | 2018-02-23 |
Family
ID=61487757
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721025361.7U Withdrawn - After Issue CN207036457U (en) | 2017-08-16 | 2017-08-16 | A kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement |
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| CN (1) | CN207036457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462432A (en) * | 2017-08-16 | 2017-12-12 | 天津大学 | A kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement |
| CN115230899A (en) * | 2022-04-14 | 2022-10-25 | 大连理工大学 | Assembling and working method of sectional catenary equation tension simulation device |
-
2017
- 2017-08-16 CN CN201721025361.7U patent/CN207036457U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462432A (en) * | 2017-08-16 | 2017-12-12 | 天津大学 | A kind of experimental rig for considering steel catenary riser tension force effect underground pipelines axial orientation displacement |
| CN107462432B (en) * | 2017-08-16 | 2019-12-24 | 天津大学 | Test device for axial directional displacement of tube spool under action of tension of steel catenary riser |
| CN115230899A (en) * | 2022-04-14 | 2022-10-25 | 大连理工大学 | Assembling and working method of sectional catenary equation tension simulation device |
| CN115230899B (en) * | 2022-04-14 | 2023-09-19 | 大连理工大学 | Assembling and working method of segmented catenary equation tension simulator |
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| GR01 | Patent grant | ||
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Granted publication date: 20180223 Effective date of abandoning: 20191224 |