CN114595618A - System and method for calculating load of vertical shaft pipeline fixing support and storage medium - Google Patents

System and method for calculating load of vertical shaft pipeline fixing support and storage medium Download PDF

Info

Publication number
CN114595618A
CN114595618A CN202210501912.1A CN202210501912A CN114595618A CN 114595618 A CN114595618 A CN 114595618A CN 202210501912 A CN202210501912 A CN 202210501912A CN 114595618 A CN114595618 A CN 114595618A
Authority
CN
China
Prior art keywords
pipeline
fixed support
compensator
corrugated compensator
acting force
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
Application number
CN202210501912.1A
Other languages
Chinese (zh)
Other versions
CN114595618B (en
Inventor
王少华
卓旬
徐艳红
何嘉
朱家栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Installation Group East China Construction Investment Co ltd
Original Assignee
China Construction Industrial and Energy Engineering Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Construction Industrial and Energy Engineering Group Co Ltd filed Critical China Construction Industrial and Energy Engineering Group Co Ltd
Priority to CN202210501912.1A priority Critical patent/CN114595618B/en
Publication of CN114595618A publication Critical patent/CN114595618A/en
Application granted granted Critical
Publication of CN114595618B publication Critical patent/CN114595618B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2113/00—Details relating to the application field
    • G06F2113/14—Pipes
    • 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
    • G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pipeline Systems (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention provides a system and a method for calculating loads of a fixing support of a vertical shaft pipeline and a storage medium, wherein based on a pipe section load calculation module, a corrugated compensator axial elastic force calculation module, a corrugated compensator internal pressure acting force calculation module, a corrugated compensator acting force calculation module on the fixing support and a pipeline internal pressure acting force calculation module, pipe section loads born by the fixing support, axial elastic forces generated by displacement of the corrugated compensator, internal pressure acting forces of the pipeline on the corrugated compensator, acting forces of the corrugated compensator on the fixing support and pipeline internal pressure acting forces born by the fixing support are calculated in sequence; and then, superposing each subentry acting force by using a load calculation module, determining the design load of each layer of fixed support, finally establishing a fixed support finite element analysis model by using a simulation operation module according to a calculation result, and judging whether the strength, the rigidity and the stability of the fixed support structure system meet the design requirements or not, and if not, optimizing the size of the fixed support.

Description

System and method for calculating load of vertical shaft pipeline fixing support and storage medium
Technical Field
The invention belongs to the technical field of building pipeline design, and particularly relates to a system and a method for calculating loads of a vertical shaft pipeline fixing support and a storage medium.
Background
Along with the rapid development of urban economy, super high-rise buildings are increasingly constructed, compared with other buildings, the super high-rise buildings are complex and diverse in electromechanical systems, dense in electromechanical pipelines and narrow in arrangement space, particularly large-caliber circulating water pipes and cold and hot medium pipes of systems such as air conditioning water, water supply and drainage and the like in a vertical shaft are arranged in a centralized mode, pipeline supports serve as important elements for bearing pipeline loads, and the reasonable arrangement of pipeline fixing supports is the key for guaranteeing safe and stable operation of the pipeline systems. Therefore, before the construction of the vertical shaft pipeline of the high-rise building, reasonable stress analysis and scientific design layout are carried out on the pipeline fixing support, and the design layout is very important. However, the calculation of the fixed support load usually needs manual calculation at present, and the problems of large calculation workload, low timeliness, high possibility of error and the like exist, and the traditional manual calculation method cannot meet the requirement of completing the load calculation work of the fixed support of the large-volume vertical shaft pipeline in a short time.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a system and a method for calculating the load of a vertical shaft pipeline fixing support and a storage medium, which can calculate and analyze the load of the fixing support systematically, introduce a correction coefficient in the process and seek an optimal solution, so that the calculation result is more practical, solve the problems of material waste and insufficient space of a pipe well caused by large support selection in the traditional calculation mode, and provide technical support for the layout of the vertical shaft pipeline fixing support.
The present invention achieves the above-described object by the following technical means.
A shaft tube fixed bolster load calculation system, comprising:
the pipe section load calculation module is used for calculating the pipe section load born by the fixed support according to the information of the pipeline parameter table, the arrangement positions of the fixed support and the corrugated compensator;
the corrugated compensator axial elastic force calculation module is used for acquiring the axial expansion amount of the pipeline according to the linear expansion coefficient of the pipeline, the length of a pipeline section between the fixed supports and the difference between the construction environment temperature and the temperature of a medium in the pipeline, and calculating the axial elastic force generated by the displacement of the corrugated compensator by combining the axial rigidity of the corrugated compensator;
the internal pressure acting force calculation module of the corrugated compensator is used for acquiring the pressure of a pipeline during pressure test and calculating the internal pressure acting force of the corrugated compensator by combining the effective sectional area of the corrugated compensator;
the ripple compensator is used for calculating the acting force of the fixed support, and the acting force of the ripple compensator on the fixed support is calculated according to the superposition of the force of the output data of the ripple compensator axial elastic force calculating module and the ripple compensator internal pressure acting force calculating module;
the pipeline internal pressure acting force calculation module is used for acquiring pipeline pressure testing pressure, acquiring the effective inner diameter area of the pipeline by combining pipeline parameter table information, and calculating the pipeline internal pressure acting force born by the fixed support;
the load calculation module is used for collecting output data of the pipe section load calculation module, the corrugated compensator on the fixed support acting force calculation module and the pipeline internal pressure acting force calculation module, superposing each subentry acting force and determining the load bearing design value of each layer of fixed support;
the simulation operation module is used for taking the maximum value of the load borne by each layer of fixed support according to the output result of the load calculation module and establishing a fixed support finite element analysis model by combining the constraint of the actual construction working condition on site;
the corrugated compensator axial elastic force calculation module, the corrugated compensator internal pressure acting force calculation module and the pipeline internal pressure acting force calculation module respectively comprise corresponding direction judgment units for judging the directions of the calculated forces.
Further, when the pipeline is a non-heat-insulation pipeline, the pipeline section load = (the weight of a single pipe + the weight of full water in the single pipe) × the length of the pipeline section × the gravitational acceleration, and when the pipeline is a heat-insulation pipeline, the pipeline section load = (the weight of the single pipe + the weight of full water in the single pipe + the weight of a heat-insulation layer in the single pipe) × the length of the pipeline section × the gravitational acceleration.
Further, the axial elastic force generated by the displacement of the corrugated compensator is calculated by the formula:
Figure 100002_DEST_PATH_IMAGE001
wherein, the first and the second end of the pipe are connected with each other,
Figure 238216DEST_PATH_IMAGE002
axial elastic force generated by displacement of the corrugated compensator is represented;
Figure 100002_DEST_PATH_IMAGE003
representing the axial stiffness of the corrugated compensator;
Figure 208446DEST_PATH_IMAGE004
the axial expansion and contraction quantity of the pipeline is represented;
Figure 484706DEST_PATH_IMAGE004
calculated by the following formula:
Figure 100002_DEST_PATH_IMAGE005
wherein the content of the first and second substances,
Figure 132DEST_PATH_IMAGE006
representing the linear expansion coefficient of the pipeline;
Figure 100002_DEST_PATH_IMAGE007
representing the length of the pipe section between the fixed brackets;
Figure 955319DEST_PATH_IMAGE008
represents a closed temperature difference, an
Figure 870185DEST_PATH_IMAGE008
= temperature of medium in pipeline-construction environment temperature;
the judgment method of the direction judgment unit in the corrugated compensator axial elastic force calculation module is as follows:
axial expansion of pipeline
Figure 578116DEST_PATH_IMAGE004
When the value of the axial elastic force is negative, the corrugated compensator is in a stretching state, the axial elastic force generated by the upper end and the lower end of the corrugated compensator points to the direction of the corrugated compensator, at the moment, when the fixed support is arranged above the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is positive, namely consistent with the direction of gravity, and when the fixed support is arranged below the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is negative, namely opposite to the direction of gravity;
axial expansion of pipeline
Figure 982552DEST_PATH_IMAGE004
When the axial elastic force generated by the displacement of the corrugated compensator is negative, namely opposite to the direction of gravity, when the fixed support is arranged below the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is positive, namely consistent with the direction of gravity.
Further, the calculation formula of the internal pressure acting force of the corrugated compensator is as follows:
Figure 100002_DEST_PATH_IMAGE009
wherein the content of the first and second substances,
Figure 362718DEST_PATH_IMAGE010
representing the internal pressure acting force of the corrugated compensator;
Figure 100002_DEST_PATH_IMAGE011
the pressure of the pipeline is represented;
Figure 346855DEST_PATH_IMAGE012
the effective cross-sectional area of the corrugated compensator is shown,
Figure 100002_DEST_PATH_IMAGE013
，
Figure 879598DEST_PATH_IMAGE014
is the sum of the inner diameter of the corrugated pipe and the wave height,
Figure 100002_DEST_PATH_IMAGE015
is the inner diameter of the corrugated pipe; the direction of the pressure acting force in the corrugated compensator is consistent with the direction of the axial elastic force generated by the displacement of the corrugated compensator.
Further, the calculation formula of the acting force of the corrugated compensator on the fixed supports at the two ends is as follows:
Figure 48411DEST_PATH_IMAGE016
Figure 100002_DEST_PATH_IMAGE017
wherein the content of the first and second substances,
Figure 171000DEST_PATH_IMAGE018
showing the force of the bellow compensator on the lowermost fixed bracket,
Figure 100002_DEST_PATH_IMAGE019
representing the axial spring force of the lowermost corrugated compensator,
Figure 958828DEST_PATH_IMAGE020
the internal pressure acting force of the pipeline erected on the fixing bracket at the lowest end on the upper corrugated compensator is shown;
Figure 100002_DEST_PATH_IMAGE021
indicating the force of the bellow compensator on the uppermost fixed bracket,
Figure 392083DEST_PATH_IMAGE022
indicating the axial spring force of the uppermost corrugated compensator,
Figure 100002_DEST_PATH_IMAGE023
the internal pressure acting force of the pipeline erected on the fixed support at the uppermost end on the lower square ripple compensator is shown;
the calculation formula of the acting force of the fixed bracket positioned in the middle to the corrugated compensator is as follows:
Figure 420213DEST_PATH_IMAGE024
wherein the content of the first and second substances,
Figure 100002_DEST_PATH_IMAGE025
a fixed bracket positioned between two fixed brackets at two ends is shown;
Figure 447075DEST_PATH_IMAGE026
showing corrugated compensator pairs to fixed supports
Figure 632069DEST_PATH_IMAGE025
The acting force of (c);
Figure 100002_DEST_PATH_IMAGE027
show fixed bolster
Figure 60776DEST_PATH_IMAGE025
Axial spring force of the upper ripple compensator;
Figure 555080DEST_PATH_IMAGE028
show fixed bolster
Figure 803659DEST_PATH_IMAGE025
The internal pressure acting force of the erected pipeline on the upper corrugated compensator is exerted;
Figure 100002_DEST_PATH_IMAGE029
show fixed bolster
Figure 57923DEST_PATH_IMAGE025
Axial elastic force of the lower corrugated compensator;
Figure 809978DEST_PATH_IMAGE030
show fixed bolster
Figure 242227DEST_PATH_IMAGE025
The upper erected pipeline applies internal pressure acting force to the lower square ripple compensator.
Further, in the above
Figure 774840DEST_PATH_IMAGE026
Introducing correction coefficient into calculation formula
Figure 100002_DEST_PATH_IMAGE031
，
Figure 770478DEST_PATH_IMAGE032
Taking into account only the cancellation
Figure 439357DEST_PATH_IMAGE031
Axial spring force of double smaller wave compensator, i.e. against
Figure 100002_DEST_PATH_IMAGE033
And
Figure 744305DEST_PATH_IMAGE034
：
Figure 100002_DEST_PATH_IMAGE035
when the temperature of the water is higher than the set temperature,
Figure 233055DEST_PATH_IMAGE036
；
Figure 100002_DEST_PATH_IMAGE037
when the temperature of the water is higher than the set temperature,
Figure 766804DEST_PATH_IMAGE038
。
further, a calculation formula of the internal pressure acting force of the pipeline born by the fixed support is as follows:
Figure 100002_DEST_PATH_IMAGE039
wherein the content of the first and second substances,
Figure 899977DEST_PATH_IMAGE040
representing the internal pressure acting force of the pipeline born by the fixed bracket;
Figure 100002_DEST_PATH_IMAGE041
represents the effective inner diameter area of the pipe, i.e. the flow area of the pipe;
Figure 126559DEST_PATH_IMAGE042
the pressure of the pipeline is represented;
the judgment method of the direction judgment unit in the pipeline internal pressure acting force calculation module is as follows:
when the direction of the elbow changes from horizontal to vertical, the internal pressure acting force of the pipeline born by the fixed support is positive, namely the direction of the internal pressure acting force is consistent with the gravity direction; when the direction of the elbow changes from vertical to horizontal, the internal pressure acting force of the pipeline born by the fixed support is negative, namely the direction of the internal pressure acting force is opposite to the gravity direction;
when one side of the fixed support is provided with the corrugated compensator and the other side is provided with the plug, when the plug is positioned above the fixed support, the internal pressure acting force of the pipeline born by the fixed support is negative, namely the direction of the internal pressure acting force is opposite to the gravity direction; when the plug is positioned below the fixed support, the internal pressure acting force of the pipeline born by the fixed support is positive, namely, the internal pressure acting force is consistent with the gravity direction;
one side of the fixed support is provided with a corrugated compensator, and when the other side is provided with a reducer, the direction of the internal pressure acting force of the pipeline born by the fixed support points to one side of the pipeline with smaller pipe diameter, and at the moment
Figure 100002_DEST_PATH_IMAGE043
The calculation formula is as follows:
Figure 837026DEST_PATH_IMAGE044
，
Figure 100002_DEST_PATH_IMAGE045
the inner diameter of the pipeline with larger diameter in the reducer is shown,
Figure 423734DEST_PATH_IMAGE046
indicating the inner diameter of the pipe with smaller diameter in the reducer.
Furthermore, in the load calculation module, the design value of the load borne by the fixing bracket at the lowest end
Figure 100002_DEST_PATH_IMAGE047
Comprises the following steps:
Figure 660680DEST_PATH_IMAGE048
wherein the content of the first and second substances,
Figure 100002_DEST_PATH_IMAGE049
representing the load of the pipe section below the corrugated compensator above the fixed bracket at the lowest end;
Figure 808896DEST_PATH_IMAGE050
representing the internal pressure acting force of the pipeline acting on the fixed bracket at the lowest end;
Figure DEST_PATH_IMAGE051
showing the acting force of the corrugated compensator on the lowest end fixing bracket;
designed value of load borne by the uppermost fixing support
Figure 6659DEST_PATH_IMAGE052
Comprises the following steps:
Figure 100002_DEST_PATH_IMAGE053
in the formula (I), the compound is shown in the specification,
Figure 944528DEST_PATH_IMAGE054
showing the ripple compensation under the fixed support at the uppermost endThe load of the pipe section above the compensator;
Figure 100002_DEST_PATH_IMAGE055
indicating the internal pressure force of the pipeline acting on the fixed bracket at the uppermost end;
Figure 482651DEST_PATH_IMAGE056
representing the acting force of the corrugated compensator on the uppermost fixed bracket;
design value of load borne by middle fixed support
Figure 100002_DEST_PATH_IMAGE057
Comprises the following steps:
Figure 723140DEST_PATH_IMAGE058
in the formula (I), the compound is shown in the specification,
Figure 532833DEST_PATH_IMAGE025
a fixed bracket positioned between two fixed brackets at two ends is shown;
Figure 100002_DEST_PATH_IMAGE059
show fixed bolster
Figure 884180DEST_PATH_IMAGE025
The load of a pipe section between the lower square corrugated compensator and the upper corrugated compensator;
Figure 580871DEST_PATH_IMAGE060
indicating action on the fixed support
Figure 726682DEST_PATH_IMAGE025
The internal pressure acting force of the pipeline is exerted;
Figure 100002_DEST_PATH_IMAGE061
showing corrugated compensator pairs to fixed supports
Figure 23671DEST_PATH_IMAGE025
The force of (2).
A method for calculating the load of a vertical shaft pipeline fixing support by using the vertical shaft pipeline fixing support load calculation system comprises the following steps:
step 1: the pipeline section load calculation module collects pipeline parameter information, calculates the pipeline section load born by the fixed support according to the arrangement positions of the fixed support and the corrugated compensator, and transmits the pipeline section load to the load calculation module;
step 2: the corrugated compensator axial elastic force calculation module calculates the axial elastic force generated by the displacement of the corrugated compensator according to the pipeline parameter information by combining the type of the corrugated compensator, the arrangement position of the corrugated compensator and the temperature of the pipeline working environment, and transmits the axial elastic force to the corrugated compensator acting force calculation module on the fixed support;
and step 3: the internal pressure acting force calculation module of the corrugated compensator determines the pressure test pressure of the pipeline according to the pipeline parameter information, determines the effective sectional area of the corrugated compensator according to the corrugated compensator parameter information, calculates the internal pressure acting force of the corrugated compensator and transmits the internal pressure acting force to the fixed support acting force calculation module of the corrugated compensator;
and 4, step 4: the corrugated compensator acting force calculation module for the fixed support receives calculation data of the corrugated compensator axial elastic force calculation module and the corrugated compensator internal pressure acting force calculation module, calculates acting force of the corrugated compensator on the fixed support by combining the arrangement positions of the corrugated compensator and the fixed support, and transmits the acting force to the load calculation module;
and 5: the pipeline internal pressure acting force calculation module calculates the pipeline internal pressure acting force born by the fixed support according to the arrangement form of the other side of the fixed support and transmits the pipeline internal pressure acting force to the load calculation module;
step 6: the load calculation module superposes each subentry acting force according to the received data, calculates the load design value of each layer of fixed support in sequence and then transmits the load design value to the simulation operation module;
and 7: the simulation operation module is used for taking the maximum value of load borne by each layer of fixed support according to data transmitted by the load calculation module, establishing a fixed support finite element analysis model by combining the constraint of the actual construction working condition on site, defining boundary conditions and adding load working conditions, automatically calculating and analyzing the fixed support through a program, judging whether a fixed support structure system meets the standard requirement, and optimizing the section size of the fixed support if the fixed support structure system does not meet the standard requirement.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method of load calculation of a shaft duct fixing support.
The invention has the following beneficial effects:
the method can simply, conveniently and accurately solve the load borne by each layer of the fixing support of the vertical shaft pipeline systematically, greatly improve the automation degree and the calculation efficiency of load calculation, and provide a theoretical basis for further performing the mechanical analysis of the fixing support structure.
Drawings
Fig. 1 is a schematic view of a shaft pipe fixing bracket load calculation system according to the present invention;
FIG. 2 is a schematic view of the fixing bracket and the pipe layout according to embodiment 4 of the present invention;
FIG. 3 is a schematic view of an elbow on the other side of the fixed bracket;
FIG. 4 is a schematic view of a plug on the other side of the fixing bracket;
FIG. 5 is a schematic view of the reducer on the other side of the fixing bracket.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
The invention considers the expansion and contraction of the pipeline caused by the temperature difference, and takes compensation measures when the expansion and contraction amount of the pipeline reaches a certain degree, namely, the corrugated compensator is adopted to reduce the stress of the pipeline caused by the expansion and contraction of the pipeline.
Example 1:
the present embodiment provides a load calculation system for a shaft pipe fixing bracket as shown in fig. 1, including:
the pipe section load calculation module is used for calculating the pipe section load born by the fixed support according to the information of the pipeline parameter table and the arrangement positions of the fixed support and the corrugated compensator;
the axial elastic force calculation module of the corrugated compensator obtains the axial expansion amount of the pipeline according to the linear expansion coefficient of the pipeline, the length of a pipe section between fixed supports and the difference between the construction environment temperature and the temperature of a medium in the pipeline, and calculates and obtains the axial elastic force generated by the displacement of the corrugated compensator by combining the axial rigidity of the corrugated compensator;
the internal pressure acting force calculation module of the corrugated compensator acquires the pressure of pressure test of the pipeline according to the parameter table information of the pipeline, and calculates and obtains the internal pressure acting force of the pipeline on the corrugated compensator by combining the effective sectional area of the corrugated compensator;
the ripple compensator is used for calculating the acting force of the fixed support, and the acting force of the ripple compensator on the fixed support is calculated by performing force superposition according to the output data of the ripple compensator axial elastic force calculating module and the ripple compensator internal pressure acting force calculating module;
the pipeline internal pressure acting force calculation module is used for acquiring the effective inner diameter area of the pipeline and the pressure of pressure test of the pipeline according to the pipeline parameter table information, and calculating the pipeline internal pressure acting force born by the fixed support according to the effective inner diameter area and the pressure of the pressure test of the pipeline;
the load calculation module is used for collecting output data of the pipe section load calculation module, the ripple compensator on the fixed support acting force calculation module and the pipeline internal pressure acting force calculation module, superposing the fractional acting force and comprehensively determining the design value of the load borne by each layer of fixed support;
and the simulation operation module is used for taking the maximum value of the load borne by each layer of fixed support according to the output result of the load calculation module, establishing a fixed support finite element analysis model by combining the on-site actual construction working condition constraint, judging whether the strength, the rigidity and the stability of the fixed support structure system meet the standard requirements or not, and optimizing the section size of the fixed support if the strength, the rigidity and the stability of the fixed support structure system do not meet the standard requirements.
The corrugated compensator axial elastic force calculation module, the corrugated compensator internal pressure acting force calculation module and the pipeline internal pressure acting force calculation module respectively comprise corresponding direction judgment units for judging the directions of the calculated forces.
Example 2:
the embodiment provides a method for calculating a load of a vertical shaft pipeline fixing support by using the system for calculating a load of a vertical shaft pipeline fixing support in embodiment 1, which specifically comprises the following steps:
step 1: the pipe section load calculation module collects the parameter information of the pipeline and calculates the pipe section load born by the fixed support according to the arrangement position of the fixed support; when the pipeline is a non-heat-insulation pipeline, the pipeline section load = (the weight of a single pipe + the weight of full water in the single pipe) × the length of the pipeline section × the gravity acceleration, and when the pipeline is a heat-insulation pipeline, the pipeline section load = (the weight of the single pipe + the weight of full water in the single pipe + the weight of a single pipe heat-insulation layer) × the length of the pipeline section × the gravity acceleration.
And 2, step: the corrugated compensator axial elastic force calculation module calculates the axial elastic force generated by the displacement of the corrugated compensator by combining the type of the corrugated compensator, the setting position of the corrugated compensator and the temperature of the working environment of the pipeline according to the parameter information of the pipeline, and the specific process is as follows:
firstly, calculating the axial expansion and contraction quantity of the pipeline according to the following formula (1):
Figure 913130DEST_PATH_IMAGE062
（1）
in the formula (I), the compound is shown in the specification,
Figure DEST_PATH_IMAGE063
the axial expansion and contraction quantity of the pipeline is expressed in mm;
Figure 431704DEST_PATH_IMAGE064
represents the linear expansion coefficient of the pipe in units of
Figure DEST_PATH_IMAGE065
；
Figure 873050DEST_PATH_IMAGE066
The length of the pipe section between the fixed brackets is expressed in m;
Figure DEST_PATH_IMAGE067
which represents the closed temperature difference and is,
Figure 532702DEST_PATH_IMAGE067
the unit of = the temperature of a medium in the pipeline-the temperature of a construction environment;
the axial elastic force generated by the displacement of the ripple compensator is calculated according to the following formula (2):
Figure 101217DEST_PATH_IMAGE068
（2）
in the formula (I), the compound is shown in the specification,
Figure DEST_PATH_IMAGE069
the unit of the axial elastic force generated by the displacement of the corrugated compensator is N;
Figure 897135DEST_PATH_IMAGE070
the axial stiffness of the corrugated compensator is expressed in N/mm.
Then the direction judging unit is combined with the positive and negative of the closed temperature difference to judge the axial expansion and contraction quantity of the pipeline
Figure 774961DEST_PATH_IMAGE063
The direction of the axial elastic force generated by the displacement of the corrugated compensator borne by the fixed support is determined by judging whether the corrugated compensator is in a stretching state or a compressing state, and the direction is as follows:
when the axial expansion of the pipeline is measured
Figure 390750DEST_PATH_IMAGE063
When the value is a negative value, the corrugated compensator is in a stretching state, and the axial elastic force generated by the upper end and the lower end of the corrugated compensator points to the direction of the corrugated compensator; at this time, when the fixed support is above the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is positive (the direction is consistent with the direction of gravity), and when the fixed support is below the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is negative (the direction is opposite to the direction of gravity);
when the axial expansion of the pipeline is measured
Figure 418749DEST_PATH_IMAGE063
When the value is positive, the corrugated compensator is in a compressed state, and the axial elastic force generated by the upper end and the lower end of the corrugated compensator points to the direction far away from the corrugated compensator; at this time, when the fixed bracket is above the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is negative (opposite to the direction of gravity), and when the fixed bracket is below the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is positive (consistent with the direction of gravity).
And step 3: the pressure testing pressure of the pipeline and the effective sectional area of the corrugated compensator are determined by the internal pressure acting force calculation module of the corrugated compensator, and the internal pressure acting force of the corrugated compensator is calculated according to the following formula (3):
Figure DEST_PATH_IMAGE071
（3）
in the formula (I), the compound is shown in the specification,
Figure 646337DEST_PATH_IMAGE072
the internal pressure acting force of the corrugated compensator is expressed, and the unit is N;
Figure DEST_PATH_IMAGE073
the pressure of the pipeline pressure test is expressed in MPa;
Figure 960644DEST_PATH_IMAGE074
represents the effective cross-sectional area of the corrugated compensator in mm2(ii) a Wherein the internal pressure of the corrugated compensator acts
Figure 63729DEST_PATH_IMAGE072
Direction and axial elastic force of
Figure DEST_PATH_IMAGE075
The direction of (a) is kept consistent.
And 4, step 4: the corrugated compensator calculates the module and according to corrugated compensator and fixed bolster's the position that sets up to fixed bolster effort, combines axial elastic force, the corrugated compensator internal pressure effort that corrugated compensator displacement that step 2, 3 calculated produced, calculates corrugated compensator to fixed bolster effort:
firstly, the stress of the two end fixing brackets is respectively as follows:
Figure 239626DEST_PATH_IMAGE076
（4）
Figure DEST_PATH_IMAGE077
（5）
in the formula (I), the compound is shown in the specification,
Figure 72453DEST_PATH_IMAGE078
showing the force of the bellow compensator on the lowermost fixed bracket,
Figure DEST_PATH_IMAGE079
representing the axial spring force of the lowermost corrugated compensator,
Figure 433027DEST_PATH_IMAGE080
the internal pressure acting force of the pipeline erected on the fixing bracket at the lowest end on the upper corrugated compensator is shown;
Figure DEST_PATH_IMAGE081
indicating the force of the bellow compensator on the uppermost fixed bracket,
Figure 866152DEST_PATH_IMAGE082
indicating the axial spring force of the uppermost ripple compensator,
Figure DEST_PATH_IMAGE083
the internal pressure acting force of the pipeline erected on the fixed support at the uppermost end on the lower square ripple compensator is shown;
the force applied to the middle fixing bracket is:
Figure 829428DEST_PATH_IMAGE084
（6）
in the formula (I), the compound is shown in the specification,
Figure DEST_PATH_IMAGE085
represents a certain fixed bracket located between two fixed brackets at both ends;
Figure 533073DEST_PATH_IMAGE086
showing corrugated compensator pairs to fixed supports
Figure 595707DEST_PATH_IMAGE085
The acting force of (c);
Figure DEST_PATH_IMAGE087
show fixed bolster
Figure 1281DEST_PATH_IMAGE085
Axial elastic force of the upper corrugated compensator;
Figure 440352DEST_PATH_IMAGE088
show fixed bolster
Figure 654296DEST_PATH_IMAGE085
The internal pressure acting force of the upper pipeline on the upper corrugated compensator;
Figure DEST_PATH_IMAGE089
show fixed bolster
Figure 939696DEST_PATH_IMAGE085
Axial elastic force of the lower corrugated compensator;
Figure 301407DEST_PATH_IMAGE090
show fixed bolster
Figure 75328DEST_PATH_IMAGE085
The upper erected pipeline applies internal pressure acting force to the lower square ripple compensator.
The directions of acting forces applied to the upper and lower fixed brackets of the corrugated compensator are opposite, when one corrugated compensator is respectively arranged above and below the fixed brackets, the directions of the thrust forces are opposite, and a part of the force can be mutually offset, but the corrugated compensators have different typesDifferent installation conditions, therefore, the invention introduces a correction coefficient for safety
Figure 674937DEST_PATH_IMAGE031
，
Figure 79373DEST_PATH_IMAGE032
Consider cancellation
Figure 741430DEST_PATH_IMAGE031
By axial spring force of a smaller wave compensator, e.g. when
Figure 459987DEST_PATH_IMAGE037
When the temperature of the water is higher than the set temperature,
Figure 710840DEST_PATH_IMAGE038
。
and 5: when one side of the fixed support is a corrugated compensator and the other side of the fixed support is an elbow/plug/reducer, the fixed support bears the internal pressure acting force of the pipeline, and the internal pressure acting force calculation module of the pipeline calculates the internal pressure acting force of the pipeline borne by the fixed support according to the following formula (7):
Figure DEST_PATH_IMAGE091
（7）
in the formula (I), the compound is shown in the specification,
Figure 817336DEST_PATH_IMAGE092
the unit of the acting force of the internal pressure of the pipeline born by the fixed bracket is N,
Figure DEST_PATH_IMAGE093
represents the effective inner diameter area of the pipe in mm2；
The action of the water pressure in the pipeline can generate pressure on the inner wall surface of the pipeline in a vertical direction, the resultant force of the pressure in the horizontal direction is zero, upward or downward thrust is generated in the vertical direction according to different changes of the pipe diameter and the trend of the pipeline, and the direction judgment unit in the pipeline internal pressure action force calculation module has the following judgment method:
the other side of the fixed support is provided with an elbow as shown in figure 3, and when the elbow moves from horizontal to vertical, the acting force of the internal pressure of the pipeline born by the fixed support is positive (consistent with the gravity direction); when the elbow moves from vertical to horizontal, the internal pressure acting force of the pipeline born by the fixed support is negative (opposite to the gravity direction);
the other side of the fixed support is provided with a plug as shown in fig. 4, and when the plug is positioned above the fixed support, the internal pressure acting force of the pipeline born by the fixed support is negative (opposite to the gravity direction); when the plug is positioned below the fixed support, the internal pressure acting force of the pipeline born by the fixed support is positive (the direction is consistent with the gravity direction);
when the other side of the fixed support is a big end and a small end as shown in fig. 5, axial thrust can be generated due to different stress areas on two sides of the reducing part, the direction of the axial thrust points to one side with a smaller pipe diameter, namely, the direction of the internal pressure acting force of the pipeline born by the fixed support points to one side of the pipeline with the smaller pipe diameter, and at the moment, the internal pressure acting force of the pipeline born by the fixed support points to one side of the pipeline with the smaller pipe diameter
Figure 996383DEST_PATH_IMAGE093
The calculation formula is as follows:
Figure 253052DEST_PATH_IMAGE044
，
Figure 686307DEST_PATH_IMAGE045
the inner diameter of the pipeline with larger diameter in the reducer is shown,
Figure 432546DEST_PATH_IMAGE046
indicating the inner diameter of the pipe with smaller diameter in the reducer.
Step 6: the load calculation module combines the specific position of the fixed support, superposes the subentry acting forces calculated in the steps 1 to 5, and sequentially calculates the load of each layer of the fixed support, and the specific process is as follows:
step 6.1: the lowest end fixing bracket (namely the lowest layer fixing bracket) bears the designed load value
Figure 928249DEST_PATH_IMAGE094
：
Figure DEST_PATH_IMAGE095
（8）
In the formula (I), the compound is shown in the specification,
Figure 598396DEST_PATH_IMAGE096
representing the load of the pipe section below the corrugated compensator above the fixed bracket at the lowest end;
Figure DEST_PATH_IMAGE097
representing the internal pressure acting force of the pipeline acting on the fixed bracket at the lowest end;
Figure 886158DEST_PATH_IMAGE098
showing the acting force of the corrugated compensator on the lowest end fixing bracket;
step 6.2: the design value of the load born by the fixed bracket at the uppermost layer (namely the fixed bracket at the uppermost layer) is
Figure DEST_PATH_IMAGE099
：
Figure 272140DEST_PATH_IMAGE100
（9）
In the formula (I), the compound is shown in the specification,
Figure DEST_PATH_IMAGE101
representing the load of the pipe section above the square ripple compensator below the fixed support at the uppermost end;
Figure 363462DEST_PATH_IMAGE102
indicating the internal pressure force of the pipeline acting on the fixed bracket at the uppermost end;
Figure DEST_PATH_IMAGE103
representing the acting force of the corrugated compensator on the uppermost fixed bracket;
step 6.3: the design value of the load born by the middle fixed bracket is
Figure 617726DEST_PATH_IMAGE104
：
Figure DEST_PATH_IMAGE105
（10）
In the formula (I), the compound is shown in the specification,
Figure 635360DEST_PATH_IMAGE106
show fixed bolster
Figure 67610DEST_PATH_IMAGE085
The load of a pipe section between the lower square corrugated compensator and the upper corrugated compensator;
Figure DEST_PATH_IMAGE107
indicating action on the fixed support
Figure 803484DEST_PATH_IMAGE085
The internal pressure force of the pipeline.
And 7: the simulation operation module combines the on-site actual construction working condition constraint according to the calculation result in the step 6, takes the maximum value of the load borne by each layer of fixed support, combines the on-site actual construction working condition constraint to establish a fixed support finite element analysis model, defines boundary conditions and load adding working conditions, automatically calculates and analyzes the fixed support through a program, judges whether a fixed support structure system meets the standard requirement or not, and optimizes the section size of the fixed support if the fixed support structure system does not meet the standard requirement;
wherein the bending strength is in accordance with
Figure 330281DEST_PATH_IMAGE108
The calculation is carried out according to the calculation,
Figure DEST_PATH_IMAGE109
in order to provide a bending moment about the x-axis,
Figure 468001DEST_PATH_IMAGE110
in order to obtain a coefficient of plastic development for the section x of the main axis,
Figure DEST_PATH_IMAGE111
for the net section modulus of the x-axis,
Figure 772949DEST_PATH_IMAGE112
the design value of the bending strength of the steel is obtained; deformation calculation is as follows
Figure DEST_PATH_IMAGE113
The method comprises the steps of (a) carrying out, wherein,
Figure 120754DEST_PATH_IMAGE114
in order to fix the span of the frame beam of the support,
Figure DEST_PATH_IMAGE115
is the deformation;
performing welding seam shearing force checking calculation on the support rib plate of the fixed support, and performing welding seam shearing force checking calculation when the fixed support is in counter-force
Figure 670815DEST_PATH_IMAGE116
Satisfy the requirement of
Figure DEST_PATH_IMAGE117
It is indicated that the supporting ribs meet the requirements, wherein,
Figure 928621DEST_PATH_IMAGE118
the number of the ribbed plates is more than or equal to 3,
Figure 420782DEST_PATH_IMAGE118
=3, when the number of ribs is 2,
Figure 131249DEST_PATH_IMAGE118
=2；
Figure DEST_PATH_IMAGE119
for calculated thickness, right-angle fillet, of rib fillet
Figure 532273DEST_PATH_IMAGE120
，
Figure DEST_PATH_IMAGE121
Is the size of the solder leg;
Figure 644586DEST_PATH_IMAGE122
the total length of the fillet weld;
Figure DEST_PATH_IMAGE123
designed values for strength of the fillet.
Example 3:
the present embodiment provides a computer-readable storage medium on which a computer program is stored which, when executed by a processor, implements the steps of the method described in embodiment 2.
Example 4:
the present embodiment preferably takes the fixed bracket arrangement structure, the pipe material selection, and the corrugated compensator type shown in fig. 2 as examples, and the scheme in embodiment 2 is described in detail; the pipeline from top to bottom 21m is DN150, the rest pipelines are DN200, the other side of the fixed support at the uppermost end is a plug, and the other side of the fixed support at the lowermost end is an elbow; the parameters of the pipeline are shown in Table 1, the temperature of the medium in the pipeline is 40 ℃, the temperature of the construction environment is 20 ℃, and the linear expansion coefficient of the pipeline is 12 multiplied by 10-3mm/(m ∙ ℃), the pressure test pressures of the pipelines at different positions are shown in table 2, and the parameters of the corrugated compensator are shown in table 3.
TABLE 1 pipeline parameter table
Figure 42069DEST_PATH_IMAGE124
TABLE 2 pressure-testing pressure gauge for pipeline
Figure DEST_PATH_IMAGE125
TABLE 3 corrugated compensator parameter Table
Figure 115198DEST_PATH_IMAGE126
In this embodiment, it is preferable that the force opposite to the direction of gravity is negative and indicated by (↓) and the force corresponding to the direction of gravity is positive and indicated by (↓).
(1) The method for calculating the load of the fixing bracket at the lowermost end comprises the following steps:
Figure DEST_PATH_IMAGE127
=66.8591Kg/m×10N/Kg×（8m+5m）=8691.683N（↓）
Figure 256330DEST_PATH_IMAGE128
=1.5MPa×33636.456 mm2=50454.6995N（↓）
Figure DEST_PATH_IMAGE129
=480 N/mm×12×10-3mm/(m∙℃)×（8m+10m）×20℃+1.5 MPa×9470.24 mm2
=2073.6N（↓）+14205.36N（↓）
then
Figure 488728DEST_PATH_IMAGE130
=1.2×8691.683+1.4×（50454.6995+2073.6+14205.36）
=103857.1429N（↓）
(2) The load calculation method of the uppermost fixed support comprises the following steps:
Figure DEST_PATH_IMAGE131
=36.1142 Kg/m×10N/Kg×（10m+5m）=5417.13N（↓）
Figure 837539DEST_PATH_IMAGE132
=1.0 MPa×17662.5 mm2=17662.5N（↑）
Figure DEST_PATH_IMAGE133
=456 N/mm×12×10-3mm/(m∙℃)×（10m+8m）×20℃+1.0 MPa×5831.765 mm2
=1969.92N（↑）+5831.765N（↑）
then
Figure 850494DEST_PATH_IMAGE053
=1.2×5417.13+1.4×[（-17662.5）+（-1969.92）+（-5831.765）]
=-29149.303N（↑）
(3) The load calculation method of the middle fixing bracket comprises the following steps:
Figure 998579DEST_PATH_IMAGE134
=66.8591Kg/m×10N/Kg×（10m+2m）+36.1142 Kg/m×10N/Kg×6m=10189.944N（↓）
Figure DEST_PATH_IMAGE135
=1.3 Mpa×
Figure 898533DEST_PATH_IMAGE136
=20766.1545N（↑）
Figure DEST_PATH_IMAGE137
=456 N/mm×12×10-3mm/(m∙℃)×（10m+8m）×20℃=1969.92N（↓）
Figure 309922DEST_PATH_IMAGE138
=480 N/mm×12×10-3mm/(m∙℃)×（10m+8m）×20℃=2073.6N（↑）
Figure DEST_PATH_IMAGE139
=1.3 MPa×5831.765 mm2=7581.2945N（↓）
Figure 341332DEST_PATH_IMAGE140
=1.3 MPa×9470.24 mm2=12311.312N（↑）
Figure DEST_PATH_IMAGE141
=0.7×1969.92+7581.2945-2073.6-12311.312
=-5424.6735
then
Figure 73534DEST_PATH_IMAGE058
=1.2×10189.944+1.4×[（-20766.1545）-5424.6735]
=-24439.2264N（↑）
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any obvious modifications, substitutions or variations can be made by those skilled in the art without departing from the spirit of the present invention.

Claims (10)

1. A shaft pipeline fixed bolster load calculation system characterized in that includes:
the pipe section load calculation module is used for calculating the pipe section load born by the fixed support according to the information of the pipeline parameter table, the arrangement positions of the fixed support and the corrugated compensator;
the corrugated compensator axial elastic force calculation module is used for acquiring the axial expansion amount of the pipeline according to the linear expansion coefficient of the pipeline, the length of a pipeline section between the fixed supports and the difference between the construction environment temperature and the temperature of a medium in the pipeline, and calculating the axial elastic force generated by the displacement of the corrugated compensator by combining the axial rigidity of the corrugated compensator;
the internal pressure acting force calculation module of the corrugated compensator is used for acquiring the pressure of a pipeline during pressure test and calculating the internal pressure acting force of the corrugated compensator by combining the effective sectional area of the corrugated compensator;
the ripple compensator is used for calculating the acting force of the fixed support, and the acting force of the ripple compensator on the fixed support is calculated according to the superposition of the force of the output data of the ripple compensator axial elastic force calculating module and the ripple compensator internal pressure acting force calculating module;
the pipeline internal pressure acting force calculation module is used for acquiring pipeline pressure testing pressure, acquiring the effective inner diameter area of the pipeline by combining pipeline parameter table information, and calculating the pipeline internal pressure acting force born by the fixed support;
the load calculation module is used for collecting output data of the pipe section load calculation module, the corrugated compensator on the fixed support acting force calculation module and the pipeline internal pressure acting force calculation module, superposing each subentry acting force and determining the load bearing design value of each layer of fixed support;
the simulation operation module is used for taking the maximum value of the load borne by each layer of fixed support according to the output result of the load calculation module and establishing a fixed support finite element analysis model by combining the constraint of the actual construction working condition on site;
the corrugated compensator axial elastic force calculation module, the corrugated compensator internal pressure acting force calculation module and the pipeline internal pressure acting force calculation module respectively comprise corresponding direction judgment units for judging the directions of the calculated forces.
2. The system for calculating the load of a vertical shaft pipeline fixing bracket according to claim 1, wherein when the pipeline is a non-insulated pipeline, the pipeline section load = (weight of a single pipe + weight of water filled in a single pipe) × pipeline section length × gravitational acceleration, and when the pipeline is an insulated pipeline, the pipeline section load = (weight of a single pipe + weight of water filled in a single pipe + weight of an insulated layer of a single pipe) × pipeline section length × gravitational acceleration.
3. The shaft duct fixed support load calculation system of claim 1, wherein the axial elastic force generated by the displacement of the bellow compensator is calculated by the formula:
Figure DEST_PATH_IMAGE001
wherein the content of the first and second substances,
Figure 765377DEST_PATH_IMAGE002
indicating ripple compensatorsAxial elastic force generated by displacement;
Figure DEST_PATH_IMAGE003
representing the axial stiffness of the corrugated compensator;
Figure 948097DEST_PATH_IMAGE004
the axial expansion and contraction quantity of the pipeline is represented;
Figure 773839DEST_PATH_IMAGE004
calculated by the following formula:
Figure DEST_PATH_IMAGE005
wherein the content of the first and second substances,
Figure 434628DEST_PATH_IMAGE006
represents the linear expansion coefficient of the pipeline;
Figure DEST_PATH_IMAGE007
representing the length of the pipe section between the fixed brackets;
Figure 780158DEST_PATH_IMAGE008
represents a closed temperature difference, an
Figure 133779DEST_PATH_IMAGE008
= temperature of medium inside the pipe-temperature of construction environment;
the judgment method of the direction judgment unit in the corrugated compensator axial elastic force calculation module is as follows:
axial expansion of pipeline
Figure 948283DEST_PATH_IMAGE008
When the value is negative, the corrugated compensator is in a stretching state, the axial elastic force generated by the upper end and the lower end of the corrugated compensator points to the direction of the corrugated compensator, and at the moment, when the fixed support is arranged above the corrugated compensator, the received corrugationsThe axial elastic force generated by the displacement of the compensator is positive, namely the axial elastic force is consistent with the direction of gravity, and when the fixed support is arranged below the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is negative, namely the axial elastic force is opposite to the direction of gravity;
axial expansion of pipe
Figure 678341DEST_PATH_IMAGE008
When the axial elastic force generated by the displacement of the corrugated compensator is negative, namely opposite to the direction of gravity, when the fixed support is arranged below the corrugated compensator, the axial elastic force generated by the displacement of the corrugated compensator is positive, namely consistent with the direction of gravity.
4. The shaft tube fixing bracket load calculation system of claim 1 wherein the bellows compensator internal pressure force calculation formula is:
Figure DEST_PATH_IMAGE009
wherein the content of the first and second substances,
Figure 878379DEST_PATH_IMAGE010
representing the internal pressure acting force of the corrugated compensator;
Figure DEST_PATH_IMAGE011
the pressure of the pipeline is represented;
Figure 137322DEST_PATH_IMAGE012
the effective cross-sectional area of the corrugated compensator is shown,
Figure DEST_PATH_IMAGE013
，
Figure 474674DEST_PATH_IMAGE014
is the sum of the inner diameter of the corrugated pipe and the wave height,
Figure DEST_PATH_IMAGE015
is the inner diameter of the corrugated pipe; the direction of the pressure acting force in the corrugated compensator is consistent with the direction of the axial elastic force generated by the displacement of the corrugated compensator.
5. The shaft tube fixing bracket load calculation system of claim 1, wherein the force calculation formula of the fixing brackets at both ends subjected to the ripple compensator is as follows:
Figure 477265DEST_PATH_IMAGE016
Figure DEST_PATH_IMAGE017
wherein the content of the first and second substances,
Figure 79279DEST_PATH_IMAGE018
showing the force of the bellow compensator on the lowermost fixed bracket,
Figure DEST_PATH_IMAGE019
representing the axial spring force of the lowermost corrugated compensator,
Figure 40282DEST_PATH_IMAGE020
the internal pressure acting force of the pipeline erected on the fixing bracket at the lowest end on the upper corrugated compensator is shown;
Figure DEST_PATH_IMAGE021
indicating the force of the bellow compensator on the uppermost fixed bracket,
Figure 547486DEST_PATH_IMAGE022
indicating the axial spring force of the uppermost corrugated compensator,
Figure DEST_PATH_IMAGE023
the internal pressure acting force of the pipeline erected on the fixed support at the uppermost end on the lower square ripple compensator is shown;
the calculation formula of the acting force of the fixed bracket positioned in the middle to the corrugated compensator is as follows:
Figure 399774DEST_PATH_IMAGE024
wherein the content of the first and second substances,
Figure DEST_PATH_IMAGE025
a fixed bracket positioned between two fixed brackets at two ends is shown;
Figure 308824DEST_PATH_IMAGE026
showing corrugated compensator pairs to fixed supports
Figure 440728DEST_PATH_IMAGE025
The acting force of (c);
Figure DEST_PATH_IMAGE027
show fixed bolster
Figure 435229DEST_PATH_IMAGE025
Axial spring force of the upper ripple compensator;
Figure 61513DEST_PATH_IMAGE028
show fixed bolster
Figure 90649DEST_PATH_IMAGE025
The internal pressure acting force of the erected pipeline on the upper corrugated compensator is exerted;
Figure DEST_PATH_IMAGE029
show fixed bolster
Figure 393454DEST_PATH_IMAGE025
Axial elastic force of the lower corrugated compensator;
Figure 78514DEST_PATH_IMAGE030
show fixed bolster
Figure 492177DEST_PATH_IMAGE025
The upper pipeline exerts force on the internal pressure of the lower square ripple compensator.
6. The shaft tube securing bracket load calculation system of claim 5 wherein said shaft tube securing bracket load calculation system is within said shaft tube securing bracket load calculation system
Figure 890667DEST_PATH_IMAGE026
Introducing correction coefficient into calculation formula
Figure DEST_PATH_IMAGE031
，
Figure 98794DEST_PATH_IMAGE032
Taking into account only the cancellation
Figure 333466DEST_PATH_IMAGE031
Axial spring force of double smaller wave compensator, i.e. against
Figure DEST_PATH_IMAGE033
And
Figure 19663DEST_PATH_IMAGE034
：
Figure DEST_PATH_IMAGE035
when the temperature of the water is higher than the set temperature,
Figure 570861DEST_PATH_IMAGE036
；
Figure DEST_PATH_IMAGE037
when the temperature of the water is higher than the set temperature,
Figure 949890DEST_PATH_IMAGE038
。
7. the shaft tube fixing bracket load calculation system of claim 1, wherein the calculation formula of the internal pressure force of the tube borne by the fixing bracket is as follows:
Figure DEST_PATH_IMAGE039
wherein the content of the first and second substances,
Figure 452284DEST_PATH_IMAGE040
representing the internal pressure acting force of the pipeline born by the fixed bracket;
Figure DEST_PATH_IMAGE041
represents the effective inner diameter area of the pipe, i.e. the flow area of the pipe;
Figure 942171DEST_PATH_IMAGE042
the pressure of the pipeline is represented;
the judgment method of the direction judgment unit in the pipeline internal pressure acting force calculation module is as follows:
when the direction of the elbow is changed from horizontal to vertical, the acting force of the internal pressure of the pipeline born by the fixed support is positive, namely consistent with the gravity direction; when the elbow moves from vertical to horizontal, the internal pressure acting force of the pipeline born by the fixed support is negative, namely the direction of the internal pressure acting force is opposite to the gravity direction;
when one side of the fixed support is provided with the corrugated compensator and the other side is provided with the plug, when the plug is positioned above the fixed support, the internal pressure acting force of the pipeline born by the fixed support is negative, namely the direction of the internal pressure acting force is opposite to the gravity direction; when the plug is positioned below the fixed support, the internal pressure acting force of the pipeline born by the fixed support is positive, namely, the internal pressure acting force is consistent with the gravity direction;
one side of the fixed support is provided with a corrugated compensator, and when the other side is provided with a reducer, the direction of the internal pressure acting force of the pipeline born by the fixed support points to one side of the pipeline with smaller pipe diameter, and at the moment
Figure DEST_PATH_IMAGE043
The calculation formula is as follows:
Figure 534826DEST_PATH_IMAGE044
，
Figure DEST_PATH_IMAGE045
the inner diameter of the pipeline with larger diameter in the reducer is shown,
Figure 897806DEST_PATH_IMAGE046
indicating the inner diameter of the pipe with smaller diameter in the reducer.
8. The shaft tube fixing bracket load calculation system of claim 1, wherein in the load calculation module, the lowest fixing bracket bears the designed load value
Figure DEST_PATH_IMAGE047
Comprises the following steps:
Figure 575912DEST_PATH_IMAGE048
wherein the content of the first and second substances,
Figure DEST_PATH_IMAGE049
representing the load of the pipe section below the corrugated compensator above the fixed bracket at the lowest end;
Figure 931807DEST_PATH_IMAGE050
representing the internal pressure acting force of the pipeline acting on the fixed bracket at the lowest end;
Figure 847810DEST_PATH_IMAGE052
showing the acting force of the corrugated compensator on the lowest end fixing bracket;
designed value of load borne by the uppermost fixing support
Figure DEST_PATH_IMAGE053
Comprises the following steps:
Figure 632225DEST_PATH_IMAGE054
in the formula (I), the compound is shown in the specification,
Figure DEST_PATH_IMAGE055
representing the load of the pipe section above the square ripple compensator below the fixed support at the uppermost end;
Figure 797627DEST_PATH_IMAGE056
indicating the internal pressure force of the pipeline acting on the fixed bracket at the uppermost end;
Figure DEST_PATH_IMAGE057
representing the acting force of the corrugated compensator on the uppermost fixed bracket;
design value of load borne by middle fixed support
Figure 894896DEST_PATH_IMAGE058
Comprises the following steps:
Figure DEST_PATH_IMAGE059
in the formula (I), the compound is shown in the specification,
Figure 275193DEST_PATH_IMAGE025
a fixed bracket positioned between two fixed brackets at two ends is shown;
Figure 370188DEST_PATH_IMAGE060
show fixed bolster
Figure 288465DEST_PATH_IMAGE025
The load of a pipe section between the lower square corrugated compensator and the upper corrugated compensator;
Figure DEST_PATH_IMAGE061
indicating action on the fixed support
Figure 235430DEST_PATH_IMAGE025
The internal pressure acting force of the pipeline is exerted;
Figure 860447DEST_PATH_IMAGE062
showing corrugated compensator pairs to fixed supports
Figure 454239DEST_PATH_IMAGE025
The force of (2).
9. A method of calculating the load of a shaft tube fixing bracket using the shaft tube fixing bracket load calculation system of claim 1, comprising the steps of:
step 1: the pipeline section load calculation module collects pipeline parameter information, calculates the pipeline section load born by the fixed support according to the arrangement positions of the fixed support and the corrugated compensator, and transmits the pipeline section load to the load calculation module;
step 2: the corrugated compensator axial elastic force calculation module calculates the axial elastic force generated by the displacement of the corrugated compensator according to the pipeline parameter information by combining the type of the corrugated compensator, the arrangement position of the corrugated compensator and the temperature of the pipeline working environment, and transmits the axial elastic force to the corrugated compensator acting force calculation module on the fixed support;
and step 3: the internal pressure acting force calculation module of the corrugated compensator determines the pressure test pressure of the pipeline according to the pipeline parameter information, determines the effective sectional area of the corrugated compensator according to the corrugated compensator parameter information, calculates the internal pressure acting force of the corrugated compensator and transmits the internal pressure acting force to the fixed support acting force calculation module of the corrugated compensator;
and 4, step 4: the corrugated compensator acting force calculation module for the fixed support receives calculation data of the corrugated compensator axial elastic force calculation module and the corrugated compensator internal pressure acting force calculation module, calculates acting force of the corrugated compensator on the fixed support by combining the arrangement positions of the corrugated compensator and the fixed support, and transmits the acting force to the load calculation module;
and 5: the pipeline internal pressure acting force calculation module calculates the pipeline internal pressure acting force born by the fixed support according to the arrangement form of the other side of the fixed support and transmits the pipeline internal pressure acting force to the load calculation module;
and 6: the load calculation module superposes each subentry acting force according to the received data, calculates the load design value of each layer of fixed support in sequence and then transmits the load design value to the simulation operation module;
and 7: the simulation operation module is used for taking the maximum value of load borne by each layer of fixed support according to data transmitted by the load calculation module, establishing a fixed support finite element analysis model by combining the constraint of the actual construction working condition on site, defining boundary conditions and adding load working conditions, automatically calculating and analyzing the fixed support through a program, judging whether a fixed support structure system meets the standard requirement, and optimizing the section size of the fixed support if the fixed support structure system does not meet the standard requirement.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for load calculation of a shaft tube fixing bracket according to claim 9.
CN202210501912.1A 2022-05-10 2022-05-10 System and method for calculating load of vertical shaft pipeline fixing support and storage medium Active CN114595618B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210501912.1A CN114595618B (en) 2022-05-10 2022-05-10 System and method for calculating load of vertical shaft pipeline fixing support and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210501912.1A CN114595618B (en) 2022-05-10 2022-05-10 System and method for calculating load of vertical shaft pipeline fixing support and storage medium

Publications (2)

Publication Number Publication Date
CN114595618A true CN114595618A (en) 2022-06-07
CN114595618B CN114595618B (en) 2022-07-22

Family

ID=81813562

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210501912.1A Active CN114595618B (en) 2022-05-10 2022-05-10 System and method for calculating load of vertical shaft pipeline fixing support and storage medium

Country Status (1)

Country Link
CN (1) CN114595618B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090125282A1 (en) * 2005-11-07 2009-05-14 Keio University Numerical structural analysis system based on the load-transfer-path method
CN106051470A (en) * 2016-05-18 2016-10-26 沈阳化工大学 Ripple compensator wireless monitoring system based on internet of things
CN111753351A (en) * 2020-03-19 2020-10-09 江南大学 Method for calculating bending resistance bearing capacity of variable-section column
CN114065672A (en) * 2021-10-28 2022-02-18 航天科工火箭技术有限公司 Method for calculating pipeline deformation compensation amount of pressurized conveying system of liquid carrier rocket

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090125282A1 (en) * 2005-11-07 2009-05-14 Keio University Numerical structural analysis system based on the load-transfer-path method
CN106051470A (en) * 2016-05-18 2016-10-26 沈阳化工大学 Ripple compensator wireless monitoring system based on internet of things
CN111753351A (en) * 2020-03-19 2020-10-09 江南大学 Method for calculating bending resistance bearing capacity of variable-section column
CN114065672A (en) * 2021-10-28 2022-02-18 航天科工火箭技术有限公司 Method for calculating pipeline deformation compensation amount of pressurized conveying system of liquid carrier rocket

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
王彩霞等: "平衡式波纹补偿器的热力管道固定支架受力计算", 《管道技术与设备》 *
赵宝林等: "波纹管补偿器在管网中静压轴向推力的计算", 《华北水利水电学院学报》 *
魏崇华等: "高压SCR波纹补偿器管道中固定支架的有限元分析", 《中国修船》 *
龚博等: "高温压力管道供气系统管道布置与应力分析研究", 《机械工程师》 *

Also Published As

Publication number Publication date
CN114595618B (en) 2022-07-22

Similar Documents

Publication Publication Date Title
Wu et al. Nonlinear stability analysis of steel cooling towers considering imperfection sensitivity
KR101045884B1 (en) Reliability Evaluation and Recovery Method of High Temperature High Pressure Piping and Support System Reflecting Operating Environment
CN114595618B (en) System and method for calculating load of vertical shaft pipeline fixing support and storage medium
CN112613203A (en) Pipeline stress analysis and evaluation method for fuel system of nuclear emergency diesel generating set
Ma et al. Behavior of HCR semi-rigid joints under complex loads and its effect on stability of steel cooling towers
Ma et al. Nonlinear stability of steel cooling towers with semirigid connections
CN112069609B (en) Design and calculation method of supporting ear seat of tower-attached reboiler
Rostami et al. A novel reduced column section approach for the seismic protection of wind turbines
Ren et al. Static behavior of large-diameter stiffened steel tubes for wind turbine towers under combined compression-bending-torsion load
CN102383869B (en) Novel turbo generator unit structure system
Liu et al. Reinforcement of circular steel tubes using welded casings under axial compression loading
Tian et al. Fatigue constrained topology optimization for the jacket support structure of offshore wind turbine under the dynamic load
Xiong et al. Proposal and application of onshore lattice wind turbine support structure and integrated multi-scale fatigue assessment method
Shao et al. Static strength of square T-joints reinforced with collar-plates under axial compression or in-plane bending
Meng et al. Performance analysis of novel double web V-bending angle-steel connections against progressive collapse
Yan-Nan et al. Research on light-weight of the high pressure heater tubesheet
Yi et al. Selection and calculation of large diameter heavy-duty three-pipe support and hanger based on finite element simulation
Di Sarno et al. Seismic Assessment of Pipe Racks Accounting for Soil-Structure Interaction
Konjatić et al. Stress and stability calculation of the third pass module of the steam boiler during lifting
Khalid Influence of Bottomed out Spring Hanger Support on Steam
Ma et al. Rotational resistance test of a new aluminum alloy penetrating (AAP) joint system
Ding et al. Analysis on the Vibration and Cracking Failure of Feeder Pipeline in Ammonia Synthesis Tower
CN101571358A (en) Support for close-columned air-cooling equipment
CN116658692A (en) Pipeline low-frequency vibration isolation quasi zero-stiffness bracket based on periodic structure and implementation method
JP4415299B2 (en) Piping equipment design method

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
TR01 Transfer of patent right

Effective date of registration: 20230317

Address after: Room 613, Floor 6, No. 10, Lane 246, Yuyuan Road, Jing'an District, Shanghai, 200040

Patentee after: China Construction Installation Group East China Construction Investment Co.,Ltd.

Address before: 210046 Wen Lan Road, Qixia District, Nanjing, Jiangsu Province, No. 6

Patentee before: CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP Co.,Ltd.

TR01 Transfer of patent right