CN108460201A - A kind of protection flange plate structure parameter extracting method - Google Patents

A kind of protection flange plate structure parameter extracting method Download PDF

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Publication number
CN108460201A
CN108460201A CN201810148703.7A CN201810148703A CN108460201A CN 108460201 A CN108460201 A CN 108460201A CN 201810148703 A CN201810148703 A CN 201810148703A CN 108460201 A CN108460201 A CN 108460201A
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stress
bearing
benchmark
ring flange
flange
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CN108460201B (en
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李耀华
王红军
邢思玮
杨云涛
张华�
阎毓杰
王楠
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719th Research Institute of CSIC
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719th Research Institute of CSIC
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design

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  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Rolling Contact Bearings (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention discloses a kind of protection flange plate structure parameter extracting methods, belong to flange plate structure design field, and the specific implementation step of this method is：Determine that ring flange influences the cross correlation between the impact factor and impact factor of stress intensity during pressure-bearing first；Secondly benchmark load-bearing and corresponding benchmark stress function are determined；Then the benchmark stress range for the condition that meets is determined；Finally according to benchmark stress range, the ring flange internal diameter and thickness met the requirements is determined.The present invention passes through ring flange load-bearing, the correlation of material yield strength and ring flange internal diameter and thickness; the design method of science is provided for the determination of ring flange internal diameter and thickness; so that conformal protection ring flange is not only met the protection required barrier propterty of well head radio frequency recognizing electronic label reader, but also weight can be mitigated, field application is facilitated to promote.

Description

A kind of protection flange plate structure parameter extracting method
Technical field
The present invention relates to a kind of flange plate structure parameter extracting methods, and in particular to a kind of to go into the well work suitable for petroleum industry The structural parameters extracting method of the conformal protection ring flange of uphole electronic label reader when industry, belongs to flange plate structure design skill Art field.
Background technology
In oil gas work production, oil pipe label is with use state record by beating the out-of-date methods such as steel seal and manual record Change to intelligent direction.Oil pipe with electronic tag is the solution of current mainstream.Electronic tag is mainly by hand-held Formula and fixed radio frequency recognizing electronic label reader are identified.In order to avoid during oil pipe is gone into the well, elevator and oil pipe The electronic label reader of well head is fixed in tens of tons of weight damage, is needed matched conformal anti-with reader in well head installation Shield ring flange is protected.
The outer diameter of the conformal protection ring flange of uphole electronic label reader and the outer diameter of Wellhead packer be it is identical, can be with It avoids protection ring flange from generating interference to oil field operation, therefore is conformal protection ring flange.The variable primary structure ginseng of ring flange Number is thickness and internal diameter, and the conformal ring flange of well head is ensured using thickness thickness, internal diameter scheme small as possible as possible at present Safety, such ring flange is too heavy, and big inconvenience is caused to field application.How to design at the same consider barrier propterty and The conformal protection ring flange of uphole electronic label reader of weight, also fails to solve very well.
Invention content
In view of this, the present invention provides a kind of protection flange plate structure parameter extracting method, this method passes through ring flange Load-bearing, material yield strength and ring flange internal diameter and thickness correlation, the determination for ring flange internal diameter and thickness provides The design method of science makes conformal protection ring flange both meet the protection required barrier propterty of uphole electronic label reader, Weight can be mitigated again, field application is facilitated to promote.
A kind of protection flange plate structure parameter extracting method, steps are as follows for the specific implementation of this method：
Step 1 determines between the impact factor and impact factor that ring flange influences stress intensity during pressure-bearing Cross correlation；
Step 2：Determine benchmark load-bearing and corresponding benchmark stress function；
Step 3 determines the benchmark stress range for the condition that meets；
Step 4：According to benchmark stress range, the ring flange internal diameter and thickness met the requirements is determined.
Further, the determination process of impact factor is as follows in the step 1：
Carrying out force analysis to conformal ring flange can obtain, the impact factor of ring flange stress intensity during pressure-bearing There are three：Load-bearing G, flange thickness H, ring flange internal diameter D1；And ring flange actual stress must be less than material allowable stress；Thus It can obtain：
Wherein, σiFor flange disk stress, GiFor the practical load-bearing of ring flange, RelFor material yield strength, k is safety coefficient, f For stress function, α is stress function coefficient, and C is constant；
Known to ANSYS simulations in the case of equal conditions, only change load-bearing G, the ratio between stress is equal to the ratio between gravity, public Formula (1) can be reduced to：
Wherein, GJOn the basis of load-bearing, σJOn the basis of benchmark stress function under load-bearing, it is known that parameter has Rel、k、G。
Further, benchmark load-bearing and corresponding benchmark stress function determination process are as follows in the step 2：
Choose suitable benchmark load-bearing GJ, determine the conformal flange external diameter D of parameter that ANSYS simulations need2, RFID read Device interface installs the width of well width and height, flange surface stress surface, by ANSYS simulations obtain different flange thickness and Benchmark stress σ under internal diameter combinationJ；
Data fitting is carried out to the relationship of conformal flange disk stress and thickness, internal diameter, obtains corresponding benchmark stress function σJ。
Further, the determination process that the benchmark stress range of condition is met in the step 3 is as follows：
By the practical load-bearing G of conformal ring flangei, material yield strength Rel, safety coefficient k, benchmark load-bearing GJSubstitute into formula (2) Obtain the benchmark stress for meeting condition.
Advantageous effect：
The method of the present invention obtains well head by ANSYS simulations and protects ring flange load-bearing, material yield strength and flange The correlation of disk internal diameter and thickness determines the method for providing science for the structural parameters of ring flange, makes the conformal protection of well head Ring flange not only meets the protection required barrier propterty of RFID reader, but also can mitigate weight, field application is facilitated to promote.
Description of the drawings
Fig. 1 is the conformal protection flange plate structure schematic diagram of the present invention；
Fig. 2 is the conformal protection ring flange internal diameter and outside diameter structure schematic diagram of the present invention；
1- electronic label reader interface mounting grooves；The conformal protection ring flanges of 2-.
Specific implementation mode
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in figure 1 and 2, the design object that the present invention is directed to is the conformal protection for installing uphole electronic label reader The structure of ring flange 2, the ring flange is that open circles are cyclic annular, and electronic tag reading is processed on the bottom surface of conformal protection ring flange 2 Device interface mounting groove 1, the mounting groove are rectangular channel.
The present invention provides a kind of protection flange plate structure parameter extracting methods, and steps are as follows for the specific implementation of this method：
Step 1, carrying out force analysis to ring flange can obtain, the influence of ring flange stress intensity during pressure-bearing There are three the factors：Load-bearing G, flange thickness H, ring flange internal diameter D1；Due to safety concerns, the stress generated after ring flange load-bearing It is necessarily less than material allowable stress.It can thus be concluded that：
Wherein, σiFor flange disk stress, GiFor the practical load-bearing of ring flange, RelFor material yield strength, k is safety coefficient, It is stress function to take 1.3~1.5, f, and α is stress function coefficient, and C is constant.
All parameters in addition to load-bearing G are set to definite value, in equal conditions, only change load-bearing G known to ANSYS simulations In the case of, the ratio between stress is equal to the ratio between gravity, i.e.,：
Wherein, GJOn the basis of load-bearing, σJOn the basis of benchmark stress function under load-bearing.
Formula (3) can be reduced to as a result,：
According to field condition, it is known that parameter have Rel、k、G。
Step 2 determines benchmark load-bearing and corresponding benchmark stress function
Choose suitable benchmark load-bearing GJ, it is convenient for ANSYS simulations.Determine the conformal method of parameter that ANSYS simulations need Blue dish external diameter D2, conformal flange external diameter is identical as Wellhead packer outer diameter.The width and height of RFID reader interface mounting groove 1 Degree, flange surface stress surface the parameters such as width be opposite definite value, be suitable for most of oil wells.It is obtained not by ANSYS simulations With the benchmark stress σ under flange thickness and internal diameter combinationJ, draw benchmark stress data drawing list.
Flange disk stress changes with the variation of flange thickness and internal diameter, to conformal flange disk stress and thickness, internal diameter Relationship carry out data fitting, obtain corresponding benchmark stress function σJ。
Step 3 determines the benchmark stress range for the condition that meets
By the practical load-bearing G of conformal ring flangei, material yield strength Rel, safety coefficient k, benchmark load-bearing GJSubstitute into formula (5) Obtain the benchmark stress for meeting condition.
Step 4 determines the ring flange internal diameter and thickness met the requirements according to benchmark stress range.
The benchmark stress range no more than a certain value can be obtained in step 3, according to this range, there are many meet the requirements Ring flange internal diameter combined with thickness, in order to improve the applicability of conformal ring flange, according to Oil Field situation, by ring flange Thickness is designed as n step values, each flange thickness step values corresponds to its corresponding ring flange internal diameter, and each group of data are all There is its corresponding accommodation, further according to additional conditions (electronic label reader height, well head installation space, cable interface ruler It is very little) combination is screened, it is final to determine the conformal ring flange internal diameter and thickness for meeting design requirement and field demand.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention. All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's Within protection domain.

Claims (4)

1. a kind of protection flange plate structure parameter extracting method, which is characterized in that steps are as follows for the specific implementation of this method：
It is mutual between the impact factor and impact factor of stress intensity to determine that ring flange influences during pressure-bearing for step 1 Relationship；
Step 2：Determine benchmark load-bearing and corresponding benchmark stress function；
Step 3 determines the benchmark stress range for the condition that meets；
Step 4：According to benchmark stress range, the ring flange internal diameter and thickness met the requirements is determined.
2. protection flange plate structure parameter extracting method as described in claim 1, which is characterized in that influenced in the step 1 The determination process of the factor is as follows：
Carrying out force analysis to conformal ring flange can show that ring flange impact factor of stress intensity during pressure-bearing has three It is a：Load-bearing G, flange thickness H, ring flange internal diameter D1；And ring flange actual stress must be less than material allowable stress；Thus may be used ：
Wherein, σiFor flange disk stress, GiFor the practical load-bearing of ring flange, RelFor material yield strength, k is safety coefficient, and f is to answer Force function, α are stress function coefficient, and C is constant；
Known to ANSYS simulations in the case of equal conditions, only change load-bearing G, the ratio between stress is equal to the ratio between gravity, formula (1) it can be reduced to：
Wherein, GJOn the basis of load-bearing, σJOn the basis of benchmark stress function under load-bearing, it is known that parameter has Rel、k、G。
3. protection flange plate structure parameter extracting method as claimed in claim 2, which is characterized in that benchmark in the step 2 Load-bearing and corresponding benchmark stress function determination process are as follows：
Choose suitable benchmark load-bearing GJ, determine the conformal flange external diameter D of parameter that ANSYS simulations need2, RFID reader connects The width of mouth installation well width and height, flange surface stress surface obtains different flange thickness and internal diameter by ANSYS simulations Benchmark stress σ under combinationJ；
Data fitting is carried out to the relationship of conformal flange disk stress and thickness, internal diameter, obtains corresponding benchmark stress function σJ。
4. protection flange plate structure parameter extracting method as claimed in claim 2, which is characterized in that meet in the step 3 The determination process of the benchmark stress range of condition is as follows：
By the practical load-bearing G of conformal ring flangei, material yield strength Rel, safety coefficient k, benchmark load-bearing GJFormula (2) is substituted into obtain Meet the benchmark stress of condition.
CN201810148703.7A 2018-02-13 2018-02-13 Method for extracting structural parameters of protective flange plate Expired - Fee Related CN108460201B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114239341A (en) * 2021-11-25 2022-03-25 大连透平机械技术发展有限公司 Flange stress optimization method and device, storage medium and computer equipment

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CN102052995A (en) * 2010-10-29 2011-05-11 华东理工大学 Safe evaluating method for pressure vessel after short-time firing
CN103514327A (en) * 2013-09-27 2014-01-15 国家电网公司 Finite element parametric modeling method of power transmission steel pipe pole
CN104279974A (en) * 2014-09-28 2015-01-14 中国船舶重工集团公司第七一九研究所 Split type optic fiber strain sensor assembly
CN107145635A (en) * 2017-04-10 2017-09-08 衢州市特种设备检验中心 Pressure vessel light weight optimal design method based on Numerical Iteration Method

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Publication number Priority date Publication date Assignee Title
KR20050007933A (en) * 2003-07-12 2005-01-21 두산중공업 주식회사 Nonstandard Frange Thickness Calculation Method For Heater Exchanger
CN102052995A (en) * 2010-10-29 2011-05-11 华东理工大学 Safe evaluating method for pressure vessel after short-time firing
CN103514327A (en) * 2013-09-27 2014-01-15 国家电网公司 Finite element parametric modeling method of power transmission steel pipe pole
CN104279974A (en) * 2014-09-28 2015-01-14 中国船舶重工集团公司第七一九研究所 Split type optic fiber strain sensor assembly
CN107145635A (en) * 2017-04-10 2017-09-08 衢州市特种设备检验中心 Pressure vessel light weight optimal design method based on Numerical Iteration Method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114239341A (en) * 2021-11-25 2022-03-25 大连透平机械技术发展有限公司 Flange stress optimization method and device, storage medium and computer equipment

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