CN205879709U - Tired bending test device of deep -water pipeline wet -type insulation coating - Google Patents
Tired bending test device of deep -water pipeline wet -type insulation coating Download PDFInfo
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- CN205879709U CN205879709U CN201620756350.5U CN201620756350U CN205879709U CN 205879709 U CN205879709 U CN 205879709U CN 201620756350 U CN201620756350 U CN 201620756350U CN 205879709 U CN205879709 U CN 205879709U
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- fatigue
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- oil cylinder
- insulation coating
- thermal insulation
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Abstract
The utility model discloses a tired bending test device of deep -water pipeline wet -type insulation coating, the loach carrying platform comprises a supporting fram, the support frame both ends are provided with the axial loading hydro -cylinder, the axial loading hydro -cylinder is connected with rocker arm assembly and the end fixing subassembly that is used for applying axial load to the testpieces, be provided with two sets of fatigue loading hydro -cylinders group in the support frame, the fatigue loading of every group hydro -cylinder group all includes two fatigue loading hydro -cylinders that are connected with the hydraulic pressure station, be provided with the loading subassembly that is used for applying fatigue load to the testpieces between the top of two fatigue loading hydro -cylinders of the every fatigue loading of group hydro -cylinder group. The utility model discloses under can simulating the tired curved curved attitude of deep sea hot oil line, the full -scale pipeline and the heat preservation atress condition are receiving bonding state and the structural change of heat preservation itself after fatigue load acts on between the outer surface thermal insulation layer of inspection steel pipe, joint department heat preservation and the steel pipe, between joint department heat preservation and the body heat preservation to obtain the tentation data.
Description
Technical field
This utility model relates to bend test device, particularly to a kind of deep underwater pipes wet type thermal insulation coating fatigue bending examination
Experiment device.
Background technology
Deep underwater pipes wet type thermal insulation technology is a kind of key technology ensureing crude oil fluidity, external deep water hydrocarbon resource
Conveying is mainly adopted in this way.The complex working condition at deep-sea is had higher requirement for pipeline laying, whole for pipeline
Body bending property has harsher constraint.Wet type thermal insulation pipeline needs to be curved simulated performance test and just can be served in producing.
Therefore exploitation wet type thermal insulation pipe bending Performance Testing Technology research, contributes to promoting the application at home of wet type thermal insulation pipeline,
Can be that deep water hydrocarbon development of resources provides technical guarantee.
Meanwhile, deep water wet type thermal insulation pipeline new-product development, need to carry out full-scale tired bending load test, in order to mould
Intend the tired bending load of pipelines in deep sea to steel pipe and the impact of heat-insulation layer thereof, evaluation steel pipe, wet type thermal insulation layer and heat-insulation layer joint
The bending property of point.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, it is provided that a kind of deep underwater pipes wet type thermal insulation coating is tired
Labor bend test device, this device can simulate under the utilidor fatigue case of bending of deep-sea, and full-scale pipeline and heat-insulation layer are subject to
Power situation, inspection outer surface of steel tube heat-insulation layer, between joint heat-insulation layer and steel pipe, joint heat-insulation layer and body heat-insulation layer it
Between the structure of bond state after by fatigue load effect and heat-insulation layer itself change, and obtain test data.
This utility model be the technical scheme is that a kind of deep underwater pipes wet type thermal insulation coating fatigue bending test dress
Put, including bracing frame, in support frame as described above both ends, be respectively fixedly connected with the axially loaded oil cylinder being connected with Hydraulic Station, institute
State axially loaded oil cylinder and connect Rocker arm assembly and end fixation kit, the described end having for testpieces being applied axial load
Fixation kit is arranged on the top of described Rocker arm assembly；Two groups of fatigue loading oil cylinder groups, institute it is symmetrically arranged with in support frame as described above
State often group fatigue loading oil cylinder group and all include two fatigue loading oil cylinders being connected with Hydraulic Station, described often group fatigue loading oil
The charging assembly for testpieces being applied fatigue load it is provided with between the top of two fatigue loading oil cylinders of cylinder group.
Described charging assembly is combined by the upper and lower connector of two and half arcs, outside its internal diameter is with described testpieces
Footpath matches；The both sides of described lower connector are provided with the inverted U connecting hole for being connected with described fatigue loading oil cylinder.
The connected mode of articulated form is used between described end fixture and described testpieces.
Described assay device also includes the ess-strain detection device being connected with described testpieces.
Described assay device also includes being connected with described testpieces by water chiller/heater outlet tube, for described test
Part provides the water chiller/heater of thermostatted water.
The beneficial effects of the utility model are:
1, this utility model overcomes prior art minification or half-size scale and the deficiency of single-acting load, by changing
Full-scale insulating tube testpieces, can carry out tired bending by multiple different utilidor coating surface strain value to insulating tube
Test.
2, this utility model is by using while fatigue loading oil cylinder and axially loaded oil cylinder, it is possible to simulate more really
The stress under combined load (bending and tensile load) during deep underwater pipes work and effect.
3, this utility model charging assembly is steel-casting, and two-piece unit structure is bolted, it is achieved testpieces upper
Lower tired bending；For the testpieces of different tube diameters, replaceable different charging assemblies realize the fatigue loading to testpieces.
4, the two ends of this utility model testpieces use through testpieces center articulated form, avoid examination in process of the test
Test the problem that near part anchor point, stress value is high, exclude the danger of fatigue fracture near testpieces anchor point.
5, this utility model frame uses integral solder structure, lightweight, intensity is high.
6, this utility model is in actual applications, and testpieces two ends are fixed to the end fixation kit on Rocker arm assembly top
On, after being loaded into charging assembly by the fatigue loading oil cylinder being fixed in frame, by charging assembly to complete in the middle part of insulating tube
Upper and lower fatigue loading is become to bend；Axially loaded oil cylinder has contributed to stretching by Rocker arm assembly；Loading procedure is by programme-control
It runs automatically, in real time monitoring heat-insulation layer strained situation.
7, this utility model is in actual applications, and the outer surface of testpieces steel pipe and heat-insulation layer is equipped with foil gauge, by straining
Instrument monitoring strain value；Four fatigue loading oil cylinder 2 simultaneous retractables respectively, fatigue bending test frequency-adjustable saves, fatigue loading
Load can continuous action；Axially loaded oil cylinder working-pressure scalable, its axial load is protected with the change of bending displacement in test
Hold certain value.
8, this utility model is in actual applications, and water chiller/heater holding testpieces water temperature is at 25 DEG C ± 2 DEG C, and is followed by constant temperature
Ring water is transported in testpieces.
9, this utility model is in actual applications, and maximum deflection load is up to 300 tons, and axial tensile loads is up to 125 tons.
10, this utility model is in actual applications, it is achieved that simulation pipelines in deep sea wet type thermal insulation coating carries in fatigue bending
Bonding shape under lotus and tensile load effect, between wet type thermal insulation coating and steel pipe, between joint heat-insulation layer and body heat-insulation layer
The fatigue bending test of state and the full-scale fatigue bending test of wet type thermal insulation coating.
11, this utility model is simple for structure, it is easy to accomplish tired bending load and tensile load act simultaneously on entirely
On size wet type thermal insulation coated pipeline, and omnidistance realization automatically controls, and automatically records test data, it is achieved test function.
Accompanying drawing explanation
Fig. 1: this utility model faces structural representation；
Fig. 2: this utility model plan structure schematic diagram；
Fig. 3: this utility model Rocker arm assembly and end fixation kit face structural representation；
Fig. 4: this utility model Rocker arm assembly and end fixation kit side-looking structural representation；
Fig. 5: this utility model charging assembly side-looking structural representation；
Fig. 6: this utility model testpieces working state schematic representation.
Accompanying drawing marks: 1, end fixation kit；2, charging assembly；3, fatigue loading oil cylinder；4, testpieces；5, rocking arm is total
Become；6, bracing frame；7, axially loaded oil cylinder；8, staircase and railing；9, cylinder support；201, upper connector；202, lower connector；
203, connecting hole；501, axis hole is swung；502, connector.
Detailed description of the invention
The utility model will be further described below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1 to Fig. 5, a kind of deep underwater pipes wet type thermal insulation coating fatigue bending test device, including steel construction
Bracing frame 6, is fixedly connected with, by bearing pin, the axially loaded oil cylinder being connected with Hydraulic Station in support frame as described above 6 both ends respectively
7, for testpieces 4 provides the axial load of scalable amount of force, its axial load is in test with bending displacement
Change and keep certain value；Described axially loaded oil cylinder 7 is connected by connector 502 Rocker arm assembly 5, described Rocker arm assembly 5
On be provided with swing axis hole 501, described connector 502 is connected with described axially loaded oil cylinder 7 by bearing pin；Described rocking arm is total
Becoming 5 tops to be provided with end fixation kit 1, described end fixation kit 1 uses hinged connected mode solid with described testpieces 4
Fixed connection, avoids the problem that near testpieces 4 anchor point, stress value is high, excludes testpieces 4 anchor point attached in process of the test
The danger of nearly fatigue fracture；The load of described axially loaded oil cylinder 7 output is by described Rocker arm assembly 5 and end fixation kit 1
Act on described testpieces 4.
Being symmetrically arranged with two groups of fatigue loading oil cylinder groups in support frame as described above 6, described often group fatigue loading oil cylinder group is all wrapped
Include two fatigue loading oil cylinders 3 being connected with Hydraulic Station, testpieces 4 is provided scalable amount of force, stroke length
Fatigue load, four fatigue loading oil cylinder 32 simultaneous retractables respectively, fatigue bending test frequency-adjustable saves, and fatigue loading carries
Lotus can continuous action；Described every fatigue loading oil cylinder 3 is all connected with support frame as described above 6 by cylinder support 9；Described often group
It is provided with for testpieces 4 is applied fatigue load between the top of two fatigue loading oil cylinders 3 of fatigue loading oil cylinder group
Charging assembly 2, described charging assembly 2 is steel-casting, the upper and lower connector 201,202 of two and half arcs be bolted
Combining, its internal diameter matches with the external diameter of described testpieces 4, for the testpieces 4 of different tube diameters, replaceable different size
Charging assembly 2 realize the fatigue loading to testpieces 4；Additionally, the both sides of described lower connector 202 be provided with for
The inverted U connecting hole 203 that described fatigue loading oil cylinder 3 is connected, described connecting hole 203 and described fatigue loading oil cylinder 3 top
The bearing pin arranged is connected.
The both sides of support frame as described above 6 are provided with staircase and railing 8.
Support frame as described above 6, Rocker arm assembly 5, end fixation kit 1, cylinder support 9 etc. constitute machine of the present utility model
Frame；Described fatigue loading oil cylinder 3, axially loaded oil cylinder 7 etc. constitute hydraulic system of the present utility model, and described hydraulic pressure system is under unified central planning
Standby four same plunger displacement pumps, are driven by frequency conversion motor respectively, can be used alternatingly according to actual needs during work；Described hydraulic pressure system
System, charging assembly 2 etc. constitute loading system of the present utility model；This utility model also includes by switch board, operating board, electricity
The electrical system of the composition such as cable, data acquisition processing system and auxiliary equipment etc..
In process of the test, for the test temperature of Control experiment part 4, described assay device is provided with water chiller/heater output
The water chiller/heater that pipe is connected with described testpieces 4, described testpieces 4 two ends pick out pipeline and water chiller/heater outlet tube after sealing
Road is connected, and is connected with described water chiller/heater by hot and cold water output channel, and water chiller/heater output thermostatical circulating water is to test
Part 4 heats and temperature control；For obtaining test data, described assay device is provided with the ess-strain being connected with described testpieces 4
Detection device, the foil gauge of described ess-strain detection device is separately positioned on outside steel pipe and the heat-insulation layer of described testpieces 4
On surface, foil gauge is connected with deformeter by wire, and the strain value that deformeter is measured is being counted by Real time vision
On calculation machine screen；Additionally, the stroke of output pressure and oil cylinder can be regulated by described Hydraulic Station obtain different amount of force
Axial load, fatigue load, it is achieved Action of Combined Loads is on deep underwater pipes wet type thermal insulation coating fatigue test piece 4.
By above-mentioned repeatedly Action of Combined Loads on deep underwater pipes wet type thermal insulation coating fatigue test piece 4 and testpieces
4 temperature control, and may finally obtain deep underwater pipes wet type thermal insulation coating fatigue test piece 4 fatigue test results and test parameters.
As shown in Figure 6, wherein, a is testpieces original state centrage to testpieces 4 duty, and b is testpieces drop-down operating mode center
Line, c is to push away operating mode centrage on testpieces.
Claims (5)
1. a deep underwater pipes wet type thermal insulation coating fatigue bending test device, including bracing frame, it is characterised in that described support
Being respectively fixedly connected with the axially loaded oil cylinder being connected with Hydraulic Station in frame both ends, described axially loaded oil cylinder connects useful
In testpieces is applied the Rocker arm assembly of axial load and end fixation kit, described end fixation kit is arranged on described rocking arm
The top of assembly；Being symmetrically arranged with two groups of fatigue loading oil cylinder groups in support frame as described above, described often group fatigue loading oil cylinder group is equal
Including two fatigue loading oil cylinders being connected with Hydraulic Station, described two the fatigue loading oil cylinders often organizing fatigue loading oil cylinder group
Top between be provided with for testpieces apply fatigue load charging assembly.
Deep underwater pipes wet type thermal insulation coating fatigue bending test device the most according to claim 1, it is characterised in that described
Charging assembly is combined by the upper and lower connector of two and half arcs, and its internal diameter matches with the external diameter of described testpieces；Described
The both sides of lower connector are provided with the inverted U connecting hole for being connected with described fatigue loading oil cylinder.
Deep underwater pipes wet type thermal insulation coating fatigue bending test device the most according to claim 1, it is characterised in that described
The connected mode of articulated form is used between end fixture and described testpieces.
Deep underwater pipes wet type thermal insulation coating fatigue bending test device the most according to claim 1, it is characterised in that described
Assay device also includes the ess-strain detection device being connected with described testpieces.
Deep underwater pipes wet type thermal insulation coating fatigue bending test device the most according to claim 1, it is characterised in that described
Assay device also includes being connected with described testpieces by water chiller/heater outlet tube, for providing thermostatted water to described testpieces
Water chiller/heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620756350.5U CN205879709U (en) | 2016-07-18 | 2016-07-18 | Tired bending test device of deep -water pipeline wet -type insulation coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620756350.5U CN205879709U (en) | 2016-07-18 | 2016-07-18 | Tired bending test device of deep -water pipeline wet -type insulation coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205879709U true CN205879709U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620756350.5U Active CN205879709U (en) | 2016-07-18 | 2016-07-18 | Tired bending test device of deep -water pipeline wet -type insulation coating |
Country Status (1)
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| CN (1) | CN205879709U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840926A (en) * | 2017-02-10 | 2017-06-13 | 武汉理工大学 | Multi-function steel structure crack monitoring test platform |
| CN107389470A (en) * | 2017-08-09 | 2017-11-24 | 中国石油天然气集团公司 | A kind of full-scale rotary bending fatigue test device and method of oil well pipe |
| CN112304790A (en) * | 2020-12-17 | 2021-02-02 | 山西理工红日节能服务有限公司 | Fatigue test method for heat supply directly-buried pipeline |
| CN113848135A (en) * | 2021-09-22 | 2021-12-28 | 天津大学 | Method for circularly applying load to deep sea pipeline |
-
2016
- 2016-07-18 CN CN201620756350.5U patent/CN205879709U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840926A (en) * | 2017-02-10 | 2017-06-13 | 武汉理工大学 | Multi-function steel structure crack monitoring test platform |
| CN106840926B (en) * | 2017-02-10 | 2019-07-12 | 武汉理工大学 | Multi-function steel structure crack monitoring test platform |
| CN107389470A (en) * | 2017-08-09 | 2017-11-24 | 中国石油天然气集团公司 | A kind of full-scale rotary bending fatigue test device and method of oil well pipe |
| CN107389470B (en) * | 2017-08-09 | 2020-07-14 | 中国石油天然气集团公司 | Full-size rotating bending fatigue test device and method for oil well pipe |
| CN112304790A (en) * | 2020-12-17 | 2021-02-02 | 山西理工红日节能服务有限公司 | Fatigue test method for heat supply directly-buried pipeline |
| CN113848135A (en) * | 2021-09-22 | 2021-12-28 | 天津大学 | Method for circularly applying load to deep sea pipeline |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100016 4705 mailbox, CNOOC building, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Hangzhou OPR Offshore Engineering Co., Ltd. Address before: 100016 4705 mailbox, CNOOC building, 25 Chaoyangmen North Street, Dongcheng District, Beijing. Co-patentee before: CNOOC Energy Development Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: Hangzhou OPR Offshore Engineering Co., Ltd. |