CN109164138A - A kind of in-service line for polyethylene gas pipes method for predicting residual useful life - Google Patents
A kind of in-service line for polyethylene gas pipes method for predicting residual useful life Download PDFInfo
- Publication number
- CN109164138A CN109164138A CN201811331800.6A CN201811331800A CN109164138A CN 109164138 A CN109164138 A CN 109164138A CN 201811331800 A CN201811331800 A CN 201811331800A CN 109164138 A CN109164138 A CN 109164138A
- Authority
- CN
- China
- Prior art keywords
- polyethylene
- gas
- service
- line
- gas pipes
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/04—Ageing analysis or optimisation against ageing
Abstract
A kind of in-service line for polyethylene gas pipes method for predicting residual useful life belongs to polyethylene pipe life tests technical field.This method carries out accelerated aging test with the polyethylene pipe of the trade mark firstly the need of to in-service line for polyethylene gas pipes, aging polyethylene pipe is prepared by method requirement, record ageing time, temperature and pressure, then using the oxidation induction period of differential heating scan method test aging polyethylene pipe, oxidation induction period data group is recorded, predicting residual useful life formula is obtained:It is last only to scrape a small amount of smalls progress differential heating scan method test in in-service polyethylene pipe outer surface, then resulting oxidation induction period numerical value is substituted into a in predicting residual useful life formula0It is calculated, i.e., line for polyethylene gas pipes remaining life under predictable operating status.The life-span prediction method does not influence the normal operation of city gas polyethylene pipe, simple time saving, has certain data discrimination ability, can provide technical support for the safe operation of in-service line for polyethylene gas pipes.
Description
Technical field
The invention belongs to polyethylene pipe life tests technical field, in particular to a kind of in-service line for polyethylene gas pipes is surplus
Remaining life-span prediction method.
Background technique
Since polyethylene pipe has the characteristics that corrosion-resistant, light-weight, low friction resistance, polyethylene pipe extensive utilization
In town gas pipe transport.However, polyethylene belongs to high molecular material, it is easy to happen aging, therefore polyethylene pipe is deposited
The ageing failure the problem of.In-service line for polyethylene gas pipes transport is required to the operation in the case where certain pressure acts at present, one
The service life of line for polyethylene gas pipes is that a highly important index, national Specification are in engineer application under constant-pressure
Polyvinyl fuel gas pipeline service life is not less than 50 years at 20 DEG C of temperature condition.Currently, using America Plastic pipeline association system
Fixed ISO9080 standard (deduction method is used to measure the long-term working fluid static strength of thermoplastic tube type material) is as the longevity of polyethylene pipe
Predictor formula is ordered, as shown in Equation 1:
In formula: tf- burn-out life, h；T-hydrostatic test temperature, DEG C；A, B, C, D-are related with specific material trademark
Parameters in Regression Model；σθ- circumference stress when suppressing.This method is few in conjunction with actual condition, and test period is long, and needs
Tubing being intercepted from working pipeline to do experiment, seriously affecting the normal operation of burning line, pipeline is secondary, which to be connect, molten can also deposit
In security risk.
The aging polyethylene pipe of low attribute is used many decades, and to be distributed in population line for polyethylene gas pipes close more
Collect region, a lot of polyvinyl fuel gas pipeline explosions and leakage accident once occurred both at home and abroad, causes serious economic loss, even
Endanger personal safety.It can be seen that, it is ensured that the safe operation of polyvinyl fuel gas pipeline system, and pipeline normal operation is not influenced, very
It is necessary to use a kind of convenient and safe method to study the actual life in in-service polyethylene pressure pipe road.
Summary of the invention
The present invention provides a kind of in-service line for polyethylene gas pipes method for predicting residual useful life, by carrying out Gas Polyethylene
The pressure-bearing accelerated aging test of pipeline and the oxidation induction period test of in-service line for polyethylene gas pipes, predict in-service Gas Polyethylene
The burn-out life of pipeline.
The use skill of device used in a kind of in-service line for polyethylene gas pipes method for predicting residual useful life of the present invention
Art scheme are as follows:
In-service line for polyethylene gas pipes (2) is zone duct to be tested in in-service Gas Polyethylene pipeline (1), polyethylene
Smalls particle (3) from the test zone of selection in-service line for polyethylene gas pipes (2), line for polyethylene gas pipes (4) be with
For in-service line for polyethylene gas pipes (2) with the polyethylene pipe of the trade mark, pressure-bearing accelerated aging test case (5) is accelerated always for pressure-bearing
Change line for polyethylene gas pipes (4), line for polyethylene gas pipes (6) is that accelerated ageing oven (5) carry out pressure-bearing accelerated ageing combustion
Resulting aging line for polyethylene gas pipes after gas polyethylene pipe (4), polyethylene smalls particle (7) is the poly- second of combustion gas after aging
Smalls particle under alkene pipeline (6) scraping, electronic balance (8) is for weighing polyethylene smalls particle (3) and polyethylene smalls
Grain (7), crucible (9) is for displaying polyethylene smalls particle (3) and polyethylene smalls particle (7), differential heating scan instrument (10)
For testing the oxidation induction period of polyethylene smalls particle (3) and polyethylene smalls particle (7), according to polyethylene smalls particle
(3) and the test value of the oxidation induction period of polyethylene smalls particle (7), computer (11) are used to construct in-service Gas Polyethylene pipe
Road predicting residual useful life model.
A kind of in-service line for polyethylene gas pipes method for predicting residual useful life provided by the invention, sequentially includes the following steps:
A, the emphasis Gas Polyethylene pipeline section of wanted test zone is chosen from in-service Gas Polyethylene pipeline, scrapes combustion gas
Some smalls particles of polyethylene pipe outer surface, smalls particle is first put into weighing weight in electronic balance, and (weight is about
15mg), the polyethylene smalls particle after weighing is then put into progress oxidation induction period test in differential heating scan instrument, note again
Record test value a0。
B, in-service Gas Polyethylene buried pipeline is chosen with the line for polyethylene gas pipes of the trade mark, and in-service Gas Polyethylene is buried
Ground pipeline is put into pressure-bearing accelerated aging tester with the line for polyethylene gas pipes of the trade mark, in 70 DEG C, 80 DEG C and 90 DEG C of temperature
Degree condition and under the consistent pressure condition of actual condition, to in-service Gas Polyethylene buried pipeline with the poly- second of combustion gas of the trade mark
Alkene pipeline carry out pressure-bearing accelerated aging test, until polyethylene pipe occur brittle break, record three times test temperature, passed through
Time is denoted as T respectively70、T80、T90And ta1、tb1, tc1Smalls particle is scraped from polyethylene pipe outer surface later, is put into electronics
Weight (about 15mg) is weighed in balance, the polyethylene smalls particle for having weighed weight is put into crucible, it is thin by polyethylene is placed with
The crucible of last particle, which is placed in differential heating scan instrument, tests oxidation induction period, and test gained oxidation induction period is recorded as aa1、
ab1、ac1。
C, in-service Gas Polyethylene buried pipeline is chosen with the line for polyethylene gas pipes of the trade mark, and in-service Gas Polyethylene is buried
Ground pipeline is put into pressure-bearing accelerated aging tester with the line for polyethylene gas pipes of the trade mark, in 70 DEG C, 80 DEG C and 90 DEG C of temperature
Degree condition and under the consistent pressure condition of actual condition, to in-service Gas Polyethylene buried pipeline with the poly- second of combustion gas of the trade mark
Alkene pipeline carries out pressure-bearing accelerated aging test, and a length of polyethylene aging of when experiment starts to when any between brittle break occurs
Between point, record three times test temperature, institute through the time, be denoted as T respectively70、T80、T90And ta2、tb2, tc2Later from polyethylene pipe
Outer surface scrapes smalls particle, is put into weighing weight (about 15mg) in electronic balance, will weigh the polyethylene smalls of weight
Grain is put into crucible, and the crucible for being placed with polyethylene smalls particle is placed in differential heating scan instrument and tests oxidation induction period, is surveyed
Examination gained oxidation induction period is recorded as aa2、ab2、ac2。
D, according to the proportionate relationship of the performance change index of same polyvinyl piping materials, following formula (2) are obtained:
Wherein:
T is in-service Gas Polyethylene buried pipeline in actual life；
T is the actual condition temperature of in-service Gas Polyethylene buried pipeline；
A、A1、A2、A3It is empirical；
A is any ageing time line for polyethylene gas pipes oxidation induction period test value；
a0It is in-service line for polyethylene gas pipes oxidation induction period test value；
PgasIt is pressure when in-service line for polyethylene gas pipes works normally；
PfIt is nominal pressure, i.e., local atmospheric pressure when in-service line for polyethylene gas pipes works normally；
B is the ratio of activation energy and gas constant；
The related coefficient of C---- normal pressure, nominal pressure and temperature；
The related coefficient of D---- normal pressure and nominal pressure.
E, by the conversion of step d, bimetry t meter of the in-service Gas Polyethylene buried pipeline under actual condition is obtained
It calculates formula (3):
The invention has the benefit that
A kind of in-service line for polyethylene gas pipes method for predicting residual useful life can city gas polyethylene pipe just
In-service polyethylene pipe life prediction is carried out under normal service condition, operating procedure is simple, and sampling is convenient and efficient, to the skill of sampler
Energy level requirement is low, needs test sample amount few, the testing time is short, reliable test result, and it is pre- quickly to obtain the service life
Survey analysis result；A kind of in-service line for polyethylene gas pipes method for predicting residual useful life proposed by the present invention has certain falseness
Data identification function can not only be safely operated for line for polyethylene gas pipes and provide support, be also used as the matter of production manufacturer
Measure one of the judgment criteria of grade.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Fig. 2 is that device of the present invention uses operational flowchart,
Wherein:
The in-service Gas Polyethylene pipeline of 1-, the in-service line for polyethylene gas pipes of 2-, 3- polyethylene smalls particle, the poly- second of 4- combustion gas
Alkene pipeline, 5- pressure-bearing accelerated aging test case, 6- aging line for polyethylene gas pipes, 7- polyethylene smalls particle, 8- electronic balance,
9- crucible, 10- differential heating scan instrument, 11- computer.
Specific embodiment
The present invention provides a kind of in-service line for polyethylene gas pipes method for predicting residual useful life, with reference to the accompanying drawing and specifically
The present invention will be further described for embodiment.
A kind of in-service line for polyethylene gas pipes method for predicting residual useful life provided by the invention is as shown in Figure 1, this method institute
The device being related to be by in-service Gas Polyethylene pipeline (1), in-service line for polyethylene gas pipes (2), polyethylene smalls particle (3),
Line for polyethylene gas pipes (4), pressure-bearing accelerated aging test case (5), aging line for polyethylene gas pipes (6), polyethylene smalls particle
(7), electronic balance (8), crucible (9), differential heating scan instrument (10), computer (11) composition, in-service line for polyethylene gas pipes
It (2) is key area pipeline section to be tested in in-service Gas Polyethylene pipeline (1), polyethylene smalls particle (3) is from selection
Test zone in-service line for polyethylene gas pipes (2), line for polyethylene gas pipes (4) is and in-service line for polyethylene gas pipes (2)
With the polyethylene pipe of the trade mark, pressure-bearing accelerated aging test case (5) is to be used for pressure-bearing accelerated ageing line for polyethylene gas pipes (4),
Line for polyethylene gas pipes (6) is that accelerated ageing oven (5) carry out pressure-bearing accelerated ageing line for polyethylene gas pipes (4) gained afterwards
Aging line for polyethylene gas pipes, polyethylene smalls particle (7) be after aging line for polyethylene gas pipes (6) outer surface scraping under
Smalls particle, electronic balance (8) is for weighing polyethylene smalls particle (3) and polyethylene smalls particle (7), crucible (9) use
In displaying polyethylene smalls particle (3) and polyethylene smalls particle (7), differential heating scan instrument (10) is thin for testing polyethylene
The oxidation induction period of last particle (3) and polyethylene smalls particle (7), according to polyethylene smalls particle (3) and polyethylene smalls
The test value of the oxidation induction period of grain (7), computer (11) is for constructing in-service line for polyethylene gas pipes predicting residual useful life mould
Type (Fig. 2).
Using a kind of in-service line for polyethylene gas pipes method for predicting residual useful life, sequentially include the following steps:
A, the emphasis Gas Polyethylene pipeline section that wanted test zone is chosen from in-service Gas Polyethylene pipeline, in the combustion gas
Some smalls particles under the scraping of polyethylene pipe outer surface, smalls particle is weighed to weight in electronic balance, and (weight is about
15mg), the polyethylene smalls particle after weighing is put into progress oxidation induction period test in differential heating scan instrument, records test value
a0；
B, in-service Gas Polyethylene buried pipeline is chosen with the line for polyethylene gas pipes of the trade mark, and in-service Gas Polyethylene is buried
Ground pipeline is put into pressure-bearing accelerated aging tester with the line for polyethylene gas pipes of the trade mark, in 70 DEG C, 80 DEG C and 90 DEG C of temperature
Degree condition and under the consistent pressure condition of actual condition, to in-service Gas Polyethylene buried pipeline with the poly- second of combustion gas of the trade mark
Alkene pipeline carry out pressure-bearing accelerated aging test, until polyethylene pipe occur brittle break, record three times test temperature, passed through
Time is denoted as T respectively70、T80、T90And ta1、tb1, tc1Smalls particle is scraped from polyethylene pipe outer surface later, is put into electronics
Weight (about 15mg) is weighed in balance, the polyethylene smalls particle for having weighed weight is put into crucible, it is thin by polyethylene is placed with
The crucible of last particle, which is placed in differential heating scan instrument, tests oxidation induction period, and test gained oxidation induction period is recorded as aa1、
ab1、ac1；
C, in-service Gas Polyethylene buried pipeline is chosen with the line for polyethylene gas pipes of the trade mark, and in-service Gas Polyethylene is buried
Ground pipeline is put into pressure-bearing accelerated aging tester with the line for polyethylene gas pipes of the trade mark, in 70 DEG C, 80 DEG C and 90 DEG C of temperature
Degree condition and under the consistent pressure condition of actual condition, to in-service Gas Polyethylene buried pipeline with the poly- second of combustion gas of the trade mark
Alkene pipeline carries out pressure-bearing accelerated aging test, and a length of polyethylene aging of when experiment starts to when any between brittle break occurs
Between point, record three times test temperature, institute through the time, be denoted as T respectively70、T80、T90And ta2、tb2, tc2Later from polyethylene pipe
Outer surface scrapes smalls particle, is put into weighing weight (about 15mg) in electronic balance, will weigh the polyethylene smalls of weight
Grain is put into crucible, and the crucible for being placed with polyethylene smalls particle is placed in differential heating scan instrument and tests oxidation induction period, is surveyed
Examination gained oxidation induction period is recorded as aa2、ab2、ac2；
D, according to the proportionate relationship of the performance change index of same polyvinyl piping materials, following formula is obtained:
Wherein:
T is in-service Gas Polyethylene buried pipeline in actual life；
T is the actual condition temperature of in-service Gas Polyethylene buried pipeline；
A、A1、A2、A3It is empirical；
A is any ageing time line for polyethylene gas pipes oxidation induction period test value；
a0It is in-service line for polyethylene gas pipes oxidation induction period test value；
PgasIt is pressure when in-service line for polyethylene gas pipes works normally；
PfIt is nominal pressure, i.e., local atmospheric pressure when in-service line for polyethylene gas pipes works normally；
B is the ratio of activation energy and gas constant；
The related coefficient of C---- normal pressure, nominal pressure and temperature；
The related coefficient of D---- normal pressure and nominal pressure.
E, by the conversion of step d, bimetry t of the in-service Gas Polyethylene buried pipeline under actual condition is obtained:
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope that the embodiment of the present invention discloses, the variation that can readily occur in or
Replacement, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of in-service line for polyethylene gas pipes method for predicting residual useful life, it is characterised in that device involved in this method be by
In-service Gas Polyethylene pipeline (1), in-service line for polyethylene gas pipes (2), polyethylene smalls particle (3), line for polyethylene gas pipes
(4), pressure-bearing accelerated aging test case (5), aging line for polyethylene gas pipes (6), polyethylene smalls particle (7), electronic balance
(8), crucible (9), differential heating scan instrument (10), computer (11) composition, in-service line for polyethylene gas pipes (2) are in-service combustion gas
Emphasis pipeline section to be tested in polyethylene pipeline (1), in-service combustion of the polyethylene smalls particle (3) from the test zone of selection
Gas polyethylene emphasis pipeline section (2), line for polyethylene gas pipes (4) are the polyethylene with in-service line for polyethylene gas pipes (2) with the trade mark
Pipeline, pressure-bearing accelerated aging test case (5) are for pressure-bearing accelerated ageing line for polyethylene gas pipes (4), line for polyethylene gas pipes
It (6) is that accelerated ageing oven (5) carry out the resulting poly- second of aging combustion gas after pressure-bearing accelerated ageing line for polyethylene gas pipes (4)
Alkene pipeline, polyethylene smalls particle (7) are the smalls under line for polyethylene gas pipes (6) outer surface directly scrapes after aging
Grain, for electronic balance (8) for weighing polyethylene smalls particle (3) and polyethylene smalls particle (7), crucible (9) is poly- for displaying
Ethylene smalls particle (3) and polyethylene smalls particle (7), differential heating scan instrument (10) is for testing polyethylene smalls particle
(3) and the oxidation induction period of polyethylene smalls particle (7), according to polyethylene smalls particle (3) and polyethylene smalls particle (7)
The test value of oxidation induction period, computer (11) is for constructing in-service line for polyethylene gas pipes predicting residual useful life model.
2. a kind of in-service line for polyethylene gas pipes method for predicting residual useful life based on device described in claim 1, feature exist
In sequentially including the following steps:
A, the line for polyethylene gas pipes that wanted test zone is chosen from in-service Gas Polyethylene pipeline, in the Gas Polyethylene pipe
Road outer surface scrapes some polyethylene smalls particles will be claimed with the weight (weight about 15mg) of electronic balance weighing smalls particle
Polyethylene smalls particle after amount is put into progress oxidation induction period test in differential heating scan instrument, records test value a0；
B, in-service Gas Polyethylene buried pipeline is chosen with the line for polyethylene gas pipes of the trade mark, by in-service Gas Polyethylene underground pipe
Road is put into pressure-bearing accelerated aging tester with the line for polyethylene gas pipes of the trade mark, in 70 DEG C, 80 DEG C and 90 DEG C of temperature strip
Part and under the consistent pressure condition of actual condition, to in-service Gas Polyethylene buried pipeline with the Gas Polyethylene pipe of the trade mark
Road carry out pressure-bearing accelerated aging test, until polyethylene pipe occur brittle break, record three times test temperature, institute through when
Between, it is denoted as T respectively70、T80、T90And ta1、tb1, tc1；Some smalls particles are scraped from polyethylene pipe outer surface later, are put into electricity
Weight (about 15mg) is weighed in sub- balance, the polyethylene smalls particle for having weighed weight is put into crucible, polyethylene will be placed with
The crucible of smalls particle, which is placed in differential heating scan instrument, tests oxidation induction period, and test gained oxidation induction period is recorded as aa1、
ab1、ac1；
C, in-service Gas Polyethylene buried pipeline is chosen with the line for polyethylene gas pipes of the trade mark, by in-service Gas Polyethylene underground pipe
Road is put into pressure-bearing accelerated aging tester with the line for polyethylene gas pipes of the trade mark, in 70 DEG C, 80 DEG C and 90 DEG C of temperature strip
Part and under the consistent pressure condition of actual condition, to in-service Gas Polyethylene buried pipeline with the Gas Polyethylene pipe of the trade mark
Road carries out pressure-bearing accelerated aging test, and a length of polyethylene aging of when experiment starts to any time occurred between brittle break
Point records test temperature, institute three times and is denoted as T respectively through the time70、T80、T90And ta2、tb2, tc2；Later from the polyethylene pipe
Road outer surface scrapes some smalls particles, is put into weighing weight (about 15mg) in electronic balance, will weigh the polyethylene of weight
Smalls particle is put into crucible, and the crucible for being placed with polyethylene smalls particle is placed in test oxidation induction in differential heating scan instrument
Phase, test gained oxidation induction period are recorded as aa2、ab2、ac2；
D, according to the proportionate relationship of the performance change index of same polyvinyl piping materials, following formula is obtained:
Wherein:
T is in-service Gas Polyethylene buried pipeline in actual life；
T is the actual condition temperature of in-service Gas Polyethylene buried pipeline；
A、A1、A2、A3It is empirical；
A is any ageing time line for polyethylene gas pipes oxidation induction period test value；
a0It is in-service line for polyethylene gas pipes oxidation induction period test value；
PgasIt is pressure when in-service line for polyethylene gas pipes works normally；
PfIt is nominal pressure, i.e., local atmospheric pressure when in-service line for polyethylene gas pipes works normally；B is activation energy and gas
The ratio of constant；
The related coefficient of C---- normal pressure, nominal pressure and temperature；
The related coefficient of D---- normal pressure and nominal pressure；
E, it by the conversion of step d, obtains bimetry t of the in-service Gas Polyethylene buried pipeline under actual condition and calculates public affairs
Formula:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811331800.6A CN109164138B (en) | 2018-11-09 | 2018-11-09 | Method for predicting residual life of in-service gas polyethylene pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811331800.6A CN109164138B (en) | 2018-11-09 | 2018-11-09 | Method for predicting residual life of in-service gas polyethylene pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109164138A true CN109164138A (en) | 2019-01-08 |
| CN109164138B CN109164138B (en) | 2021-02-19 |
Family
ID=64876823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811331800.6A Active CN109164138B (en) | 2018-11-09 | 2018-11-09 | Method for predicting residual life of in-service gas polyethylene pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109164138B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220938A (en) * | 2019-06-26 | 2019-09-10 | 浙江方圆检测集团股份有限公司 | Remaining oil service life appraisal procedure based on differential scanning calorimetry |
| CN110333265A (en) * | 2019-07-11 | 2019-10-15 | 中国中车股份有限公司 | A kind of method and system for predicting locomotive engine exhaust expansion bellows remaining life |
| CN114184488A (en) * | 2021-12-01 | 2022-03-15 | 中海石油(中国)有限公司 | Method for rapidly testing service life of optical cable of oil well |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266961A (en) * | 2014-10-16 | 2015-01-07 | 北京交通大学 | Thermal oxidation accelerated aging test device and service life prediction method for in-service polyethylene pipeline |
| CN104793111A (en) * | 2015-03-31 | 2015-07-22 | 华南理工大学 | Insulating cable residual service life comprehensive evaluation method based on physical, chemical and electric properties |
| CN105158085A (en) * | 2015-10-26 | 2015-12-16 | 洛阳轴研科技股份有限公司 | Compound polyimide retainer storage life prediction method |
| CN108120827A (en) * | 2017-12-20 | 2018-06-05 | 北京交通大学 | The accelerated aging tester and life-span prediction method of Gas Polyethylene buried pipeline |
-
2018
- 2018-11-09 CN CN201811331800.6A patent/CN109164138B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266961A (en) * | 2014-10-16 | 2015-01-07 | 北京交通大学 | Thermal oxidation accelerated aging test device and service life prediction method for in-service polyethylene pipeline |
| CN104793111A (en) * | 2015-03-31 | 2015-07-22 | 华南理工大学 | Insulating cable residual service life comprehensive evaluation method based on physical, chemical and electric properties |
| CN105158085A (en) * | 2015-10-26 | 2015-12-16 | 洛阳轴研科技股份有限公司 | Compound polyimide retainer storage life prediction method |
| CN108120827A (en) * | 2017-12-20 | 2018-06-05 | 北京交通大学 | The accelerated aging tester and life-span prediction method of Gas Polyethylene buried pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 李明珠等: "《中华人民共和国机械行业标准》", 25 January 2007 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220938A (en) * | 2019-06-26 | 2019-09-10 | 浙江方圆检测集团股份有限公司 | Remaining oil service life appraisal procedure based on differential scanning calorimetry |
| CN110333265A (en) * | 2019-07-11 | 2019-10-15 | 中国中车股份有限公司 | A kind of method and system for predicting locomotive engine exhaust expansion bellows remaining life |
| CN114184488A (en) * | 2021-12-01 | 2022-03-15 | 中海石油(中国)有限公司 | Method for rapidly testing service life of optical cable of oil well |
| CN114184488B (en) * | 2021-12-01 | 2024-01-30 | 中海石油(中国)有限公司 | Quick testing method for service life of optical cable of oil well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109164138B (en) | 2021-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108918405B (en) | Online monitoring system and method for corrosion prevention effect of oil well pipeline | |
| Schwaller et al. | Modeling the pressure-leakage response of water distribution systems based on individual leak behavior | |
| CN109164138A (en) | A kind of in-service line for polyethylene gas pipes method for predicting residual useful life | |
| Stephens et al. | Leak-before-break main failure prevention for water distribution pipes using acoustic smart water technologies: Case study in Adelaide | |
| US9846103B2 (en) | Oilfield conduit leakage detection system | |
| WO2020244256A1 (en) | Device and method for testing radial gas permeability of concrete | |
| CN201884942U (en) | Buried pipeline dynamic-simulation leak detection testing system | |
| CN103247358A (en) | High-energy pipeline local leakage monitoring test bed for nuclear power station | |
| CN112540027B (en) | Inspection and test method for modified polypropylene plastic cable protection pipe | |
| CN105890844A (en) | Qualitative and quantitative detection method for tiny leakage of hidden oil storage tank | |
| CN109856039A (en) | Inner screw channel type ethane cracking furnace pipe residue lifetime estimation method based on L-M parametric method | |
| Ravula et al. | Experimental validation of leak and water-ingression detection in low-pressure gas pipeline using pressure and flow measurements | |
| EP3400436B1 (en) | Method and system for measuring sulfur solubility in gas | |
| Chen et al. | Study of anticorrosion system and anticorrosion mechanism for the main cable of suspension bridge | |
| Hughes et al. | HYDRAULIC FRICTION LOSS IN SMALL DIAMETER PLASTIC PIPELINES 1 | |
| CN102999028B (en) | Gas medium continuous data early warning system digital-to-analogue constructing method | |
| CN105136273B (en) | Pipeline vibration based on feedback and Fibre Optical Sensor monitors automatically and control device | |
| Wang et al. | Study on the change of permeability of gas‐containing coal under many factors | |
| Fan et al. | Evaluation of electrical resistance probes to detect pipeline erosion and sand production in low liquid loading flow conditions | |
| KR20230040195A (en) | Forecasting system of preventing accidents by damage diagnosis of city gas supply facilities and forecasting method by the same | |
| Nerijus et al. | Influence of gas and liquid viscosity on turbine and positive displacement meters calibration | |
| CN207963969U (en) | A kind of wedge flow meter | |
| Hemp | The effect of changes in barometric pressure on mines in the highveld of South Africa | |
| Streeton et al. | Erosion and Sand Detection Testing of a Subsea Multiphase Meter with Integrated Erosion Monitoring System | |
| Nassereddin et al. | Infra-red water cut meter field trial under transient conditions |
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 |