CN116465754A - Tubular object deformation detection device - Google Patents

Tubular object deformation detection device Download PDF

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Publication number
CN116465754A
CN116465754A CN202310019066.4A CN202310019066A CN116465754A CN 116465754 A CN116465754 A CN 116465754A CN 202310019066 A CN202310019066 A CN 202310019066A CN 116465754 A CN116465754 A CN 116465754A
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CN
China
Prior art keywords
tubular object
tubular
micrometer
deformation
heating
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.)
Pending
Application number
CN202310019066.4A
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Chinese (zh)
Inventor
郭林
白天
刘莉
刘岩
魏华彤
刘海
王枫宁
吴华阳
范遂
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 Nuclear Power Engineering Co Ltd
Beijing Aerospace Institute for Metrology and Measurement Technology
Original Assignee
China Nuclear Power Engineering Co Ltd
Beijing Aerospace Institute for Metrology and Measurement Technology
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 Nuclear Power Engineering Co Ltd, Beijing Aerospace Institute for Metrology and Measurement Technology filed Critical China Nuclear Power Engineering Co Ltd
Priority to CN202310019066.4A priority Critical patent/CN116465754A/en
Publication of CN116465754A publication Critical patent/CN116465754A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/18—Performing tests at high or low temperatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0274—Tubular or ring-shaped specimens
    • 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
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)

Abstract

The invention discloses a tubular deformation detection device, which comprises an indication rod, a micrometer and an auxiliary device, wherein the auxiliary device is used for heating and/or pressurizing a tubular to simulate the actual working condition to deform the tubular; one end of the indication rod is fixedly arranged on the outer wall of the tubular object, the micrometer is arranged at the other end of the indication rod, a probe of the micrometer is contacted with the indication rod, the indication rod deflects when the tubular object is deformed, and the micrometer probe is contacted with the reading displayed by the micrometer according to the deflection of the indication rod, so that the deformation of the tubular object is measured. The invention can realize the deformation detection of the tubular object under severe working conditions such as high temperature and/or high pressure.

Description

Tubular object deformation detection device
Technical Field
The invention relates to the technical field of deformation detection, in particular to a tubular object deformation detection device.
Background
Currently, main methods for detecting the change of the inner diameter of a pipeline include a drift diameter detector method, an in-pipe imaging method and an ultrasonic ranging method, wherein: the path detector method is used in actual engineering, but the detection resolution is not high; the in-tube camera method has high cost and is not suitable for large-scale popularization; although the ultrasonic ranging method has the advantages of high detection resolution, no need of contact with the pipe wall and the like, the method needs to use a coupling agent and is not suitable for pipeline deformation detection under high-temperature working conditions. Moreover, none of the above methods are well suited for pipe deformation detection under severe conditions of specific high temperature and/or high pressure.
Disclosure of Invention
The invention aims to solve the technical problem of providing a tubular object deformation detection device which can realize tubular object deformation detection under severe working conditions such as high temperature and/or high pressure and the like.
The invention provides a tubular object deformation detection device, which has the following technical scheme:
the tubular deformation detection device comprises an indication rod, a micrometer and an auxiliary device, wherein the auxiliary device is used for heating and/or pressurizing a tubular to simulate an actual working condition to deform the tubular;
one end of the indication rod is fixedly arranged on the outer wall of the tubular object, the micrometer is arranged at the other end of the indication rod, a probe of the micrometer is contacted with the indication rod, the indication rod deflects when the tubular object is deformed, and the micrometer probe is contacted with the reading displayed by the micrometer according to the deflection of the indication rod, so that the deformation of the tubular object is measured.
Preferably, the auxiliary device comprises a flange cover, a water inlet pipe, a water outlet pipe, a heating mechanism and/or a pressurizing mechanism, wherein:
the flange cover is arranged on the pipe orifice of the pipe and is used for sealing the pipe;
the water inlet pipe is communicated with the inside of the tubular object and is used for injecting water into the tubular object;
the water outlet pipe is communicated with the inside of the tubular object and is used for discharging water and air in the tubular object;
the heating mechanism is connected with the tubular object and is used for heating water in the tubular object so as to realize heating;
the pressurizing mechanism is connected with the tubular object and is used for pressurizing the interior of the tubular object so as to realize pressurization.
Preferably, the heating mechanism comprises a heating rod and a temperature sensor, and the heating rod and the temperature sensor penetrate through the flange cover and extend into the tubular object.
Preferably, the pressurizing mechanism comprises a high-pressure water pump and a pressure sensor, the high-pressure water pump is arranged on the water inlet pipe, and the pressure sensor penetrates through the flange cover to extend into the tubular object.
Preferably, the auxiliary device further comprises a terminal device, the terminal device is respectively connected with the heating mechanism and the pressurizing mechanism, the heating mechanism is further used for detecting the temperature of water in the tubular object and transmitting the temperature to the terminal device, the pressurizing mechanism is further used for detecting the pressure in the tubular object and transmitting the pressure to the terminal device, and the terminal device is used for receiving and displaying the detected temperature value and the detected pressure value.
Preferably, the auxiliary device further comprises a sleeve, the sleeve being wrapped around the outside of the tube for insulation.
Preferably, the indicator rod is fixedly arranged on the outer wall of the tubular object through a lantern ring.
Preferably, the two indicating rods are arranged in a group, the two indicating rods are respectively positioned on opposite sides of the lantern ring, and one micrometer is respectively arranged on the outer side of each indicating rod.
Preferably, the device further comprises a finite element analysis module, which is used for carrying out finite element analysis according to parameters of the tubular object to obtain theoretical deformation data and deformation distribution data.
Preferably, the device further comprises a supporting frame and micrometer support seats, wherein the supporting frame is used for supporting the tubular object, the micrometer support seats are arranged on two sides of the tubular object in the radial direction, and the micrometer is arranged on the micrometer support seats.
The tubular deformation detection device can realize deformation detection under severe working conditions such as high temperature and/or high pressure, has the advantages of high precision, simple structure, simple operation, low cost, safety, reliability and the like, and cannot damage the tubular body.
Drawings
FIG. 1 is a schematic diagram of a tube deformation detecting device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an installation of a tube deformation detecting apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of the installation of an indicator stick and micrometer in an embodiment of the invention;
fig. 4 is a cross-sectional view of a tube deformation detecting apparatus in an embodiment of the present invention.
In the figure: 1-a temperature sensor; 2-heating rod; 3-a water inlet pipe; 4-sleeve; 5-supporting frames; 6-micrometer; 7-an indicator bar; 8-tubing; 9-transducers; 10-a flange cover; 11-a water outlet pipe; 12-micrometer support; 13-collar; 14-a set screw; 15-a bolt and a nut; 16-high pressure water pump; 17-a pressure sensor; 18-terminal equipment; 19-signal transducer.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, a clear and complete description of the technical solutions of the present invention will be provided below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that, the terms "upper" and the like indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, and are merely for convenience and simplicity of description, and do not indicate or imply that the apparatus or element in question must be provided with a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "configured," "mounted," "secured," and the like are to be construed broadly and may be either fixedly connected or detachably connected, or integrally connected, for example; can be directly connected, can be indirectly connected through an intermediate medium, and can be communicated with the inside of two elements. The specific meaning of the above terms in the present invention will be understood by those skilled in the art in specific cases.
Example 1
As shown in fig. 1, this embodiment discloses a tube deformation detection device, including an indicator bar 7, a micrometer gauge 6, and an auxiliary device, wherein:
auxiliary means for applying load, constraints (e.g. heat and/or pressure, etc.) to the tubular 8 to simulate actual conditions, deforming the tubular;
one end of the indication rod 7 is fixedly arranged on the outer wall of the tubular object 8, the micrometer gauge 6 is arranged at the other end of the indication rod 7, a probe of the micrometer gauge 6 is in contact with the indication rod 7, the indication rod 7 deflects when the tubular object 8 is deformed, and the micrometer gauge 6 displays readings according to the contact of the micrometer gauge probe when the indication rod 7 deflects, so that the deformation of the tubular object 8 is measured.
Compared with the prior art, the deformation detection device can realize deformation detection under severe working conditions such as high temperature and/or high pressure, and has high detection precision due to the adoption of the micrometer.
In some embodiments, the auxiliary devices include a flange cover 10, an inlet pipe 3, an outlet pipe 11, a heating mechanism, and/or a pressurizing mechanism.
Specifically, the flange cover 10 is arranged on the pipe orifice of the pipe 8 and is used for sealing the pipe; the water inlet pipe 3 is communicated with the inside of the tubular object 8 and is used for injecting water into the inside of the tubular object 8, and a water inlet valve is arranged on the water inlet pipe 3; the water outlet pipe 11 is communicated with the inside of the tubular object 8 and is preferably positioned at different ends of the tubular object 8 with the water inlet pipe 3 respectively, and is used for discharging water in the tubular object and air in the tubular object before water injection, and a water outlet valve is arranged on the water outlet pipe 11; the heating mechanism is connected with the tubular object 8 and is used for heating water in the tubular object so as to realize heating; the pressurizing mechanism is connected with the tubular object 8 for pressurizing the interior of the tubular object to realize pressurizing.
In this embodiment, the heating temperature is preferably a high temperature of 150-240 ℃, and the pressurizing pressure is preferably a high pressure of 5-12.2MPa, specifically adjusted according to the temperature and pressure of the actual working condition to be simulated.
In some more specific facilities, as shown in fig. 2, the heating mechanism includes a heating rod 2 and a temperature sensor 1, wherein the heating rod 2 and the temperature sensor 1 extend into the tubular object 8 through the flange cover 10, the heating rod 2 is used for heating, and the temperature sensor 1 is used for monitoring the temperature of water in the tubular object in real time.
In some more specific implementations, as shown in fig. 2, the pressurizing mechanism includes a high-pressure water pump 16, and a pressure sensor 17, where the high-pressure water pump 16 is disposed on the water inlet pipe 3, the pressure sensor 17 is preferably disposed on the water outlet pipe 11 and upstream of the water outlet valve, the high-pressure water pump 16 is used for supplying water, and the pressure sensor 17 is used for monitoring the pressure in the tubular in real time.
The number of the temperature sensor 1 and the pressure sensor 17 may be plural, and the temperature sensor and the pressure sensor may be used to detect the temperature and the pressure from different positions of the tubular member 8, respectively, so as to ensure that the desired temperature and pressure are achieved.
In this embodiment, as shown in fig. 2, the auxiliary device further includes a terminal device 18, the terminal device 18 is connected to the heating mechanism and the pressurizing mechanism, respectively, the heating mechanism is further configured to detect a temperature of water in the tubular and transmit the detected temperature to the terminal device 18, the pressurizing mechanism is further configured to detect a pressure in the tubular and transmit the detected pressure to the terminal device 18, and the terminal device 18 is configured to receive and display the detected temperature value and the detected pressure value.
Specifically, the terminal device 18 may be a computer, or may be other devices with the same or similar functions, where the temperature sensor 1 in the heating mechanism and the pressure sensor 17 in the pressurizing mechanism are connected to the computer through signal transmitters 19, and the temperature sensor 1 and the pressure sensor 17 respectively transmit the detected temperature signal/pressure signal to the computer through corresponding signal transmitters 19, and the computer receives and displays the detected temperature value and pressure value, so as to realize online monitoring.
And the terminal equipment can also be connected with a micrometer through the signal transmitter 19, and the micrometer is also used for transmitting the readings of the micrometer to the terminal equipment for display, so that the online measurement is realized.
In some embodiments, the auxiliary device further comprises a sleeve 4, the sleeve 4 being wrapped around the outside of the tube 8 for insulation.
In some embodiments, as shown in fig. 3, the indicator stick 7 is secured to the outer wall of the tube 8 by a collar 13.
Specifically, the collar 13 is preferably a metal collar, and is fastened to the outside of the tubular member 8 by bolts and nuts 15, and in actual operation, the indicator rod 7 is usually provided at one or more positions where deformation is relatively easy or the deformation amount is large. The indicator stick 7 is preferably a cylindrical stick which is fixed to the collar 13 by means of a set screw 14. The indication bars 7 are preferably arranged in a group of two, the two indication bars 7 are respectively positioned on opposite sides of the collar 13, and a micrometer gauge 6 is respectively arranged on the outer side of each indication bar 7.
In this embodiment, the tubular member 8 may be a pipe (e.g., a water pipe, an oil pipe, etc.), or may be another device having a similar pipe structure as an ultrasonic flowmeter. Taking the tube 8 as an ultrasonic flowmeter as an example, since the structure of the ultrasonic flowmeter comprises the transducer 9 and the front tube section and the rear tube section which are positioned at the front end and the rear end of the transducer 8, the collars 13 can be respectively arranged at the front tube section, the rear tube section and the transducer 9 according to the result of finite element analysis, so that one deformation detection point is respectively arranged at the front tube section and the rear tube section, two deformation detection points are respectively arranged at the pipeline and the sound channel of the transducer 9, and through the arrangement, the inner diameter deformation and the length deformation of the front tube section, the rear tube section and the pipeline and the sound channel in the transducer 9 of the ultrasonic flowmeter can be detected.
In some embodiments, the device further includes a finite element analysis module (not shown in the figure) configured to perform finite element analysis according to parameters of the tubular object 8, establish a finite element analysis model of the tubular object, apply corresponding loads and constraints to the finite element analysis model according to actual condition parameters of the deformation detection condition to simulate the actual condition, perform finite element simulation, extract strain and deformation data of the model under the actual condition, and record the strain and deformation data, so as to obtain theoretical deformation data (specifically, change of indexes such as length, angle, inner diameter of a meter body) and deformation distribution data, thereby providing a reference for arrangement of the indicator rod and the micrometer, and perform error analysis by comparing the theoretical deformation data with the measurement data, thereby further verifying accuracy and reliability of the measurement data.
In this embodiment, the finite element analysis module employs ANSYS software.
In this embodiment, if the error is less than or equal to the preset error limit (e.g., 5%), the measurement data is considered to be accurate and reliable.
In some embodiments, the device further comprises a supporting frame 5 and a micrometer support 12, as shown in fig. 4, the supporting frame 5 is used for supporting the tubular object 8, the micrometer support 12 is arranged on two sides of the tubular object 8 in the radial direction, and the micrometer 6 is arranged on the micrometer support 12.
The following describes the use of the device of this embodiment, taking deformation detection at high temperature and high pressure as an example, specifically as follows:
first, parameters of an ultrasonic flowmeter (i.e., tubular 8) were subjected to finite element analysis using ANSYS18.0 software (i.e., finite element analysis software), at a 1:1, and applying temperature and pressure load according to parameters of temperature and pressure (for example, the pressure is 226 ℃ high temperature and the pressure is 7.8MPa high pressure) under the working condition to be detected, so as to calculate and obtain theoretical deformation data and deformation distribution data of the ultrasonic flowmeter under the high temperature and high pressure conditions;
according to the theoretical deformation distribution data, determining deformation detection points of the tubular object 8, and arranging detection device components such as an indication rod 7, a micrometer gauge 6 and the like for measurement;
before measurement, the value of the micrometer gauge 6 is reset to zero, then the high-pressure water pump 16 is started, water is supplied to the inside of the tubular object 8 through the water inlet pipe 3, a valve on the water outlet pipe 11 is opened, the air in the tubular object 8 is closed after being discharged, the tubular object 8 is sealed after being filled with water, and the high-pressure water pump 16 is closed; then, the water in the tube 8 is heated to the temperature under the actual working condition (namely 226 ℃) by the heating rod 2, and the temperature is maintained; then, water is continuously supplied to the tubular object 8 by the high-pressure water pump 16 until the pressure under the actual working condition (namely 7.8 MPa) is reached, the deformation of the deformation detection point is measured by the micrometer gauge 6, the pressure is maintained until the reading of the micrometer gauge 6 is unchanged, the reading of the micrometer gauge is recorded, and the measurement data under the high-temperature and high-pressure conditions are obtained.
The deformation detection device for the tubular object can realize deformation detection under severe working conditions such as high temperature and/or high pressure, and has the advantages of high precision, simple structure, simple operation, low cost, safety, reliability and the like, and the tubular object is not damaged.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.

Claims (10)

1. A tubular deformation detection device is characterized by comprising an indication rod (7), a micrometer (6) and auxiliary devices,
the auxiliary device is used for heating and/or pressurizing the tubular (8) so as to simulate the actual working condition to deform the tubular;
one end of the indication rod is fixedly arranged on the outer wall of the tubular object, the micrometer is arranged at the other end of the indication rod, a probe of the micrometer is contacted with the indication rod, the indication rod deflects when the tubular object is deformed, and the micrometer probe is contacted with the reading displayed by the micrometer according to the deflection of the indication rod, so that the deformation of the tubular object is measured.
2. The tube deformation detection device according to claim 1, wherein the auxiliary means comprises a flange cover (10), a water inlet pipe (3), a water outlet pipe (11), a heating mechanism and/or a pressurizing mechanism,
the flange cover is arranged on the pipe orifice of the pipe and is used for sealing the pipe;
the water inlet pipe is communicated with the inside of the tubular object and is used for injecting water into the tubular object;
the water outlet pipe is communicated with the inside of the tubular object and is used for discharging water and air in the tubular object;
the heating mechanism is connected with the tubular object and is used for heating water in the tubular object so as to realize heating;
the pressurizing mechanism is connected with the tubular object and is used for pressurizing the interior of the tubular object so as to realize pressurization.
3. The tube deformation detecting device according to claim 2, wherein the heating mechanism comprises a heating rod (2), a temperature sensor (1),
the heating rod and the temperature sensor penetrate through the flange cover and extend into the tubular object.
4. The tube deformation detecting apparatus according to claim 2, wherein the pressurizing mechanism comprises a high-pressure water pump (16), a pressure sensor (17),
the high-pressure water pump is arranged on the water inlet pipe, and the pressure sensor penetrates through the flange cover and stretches into the tubular object.
5. The tube deformation detection apparatus according to claim 2, wherein the auxiliary device further comprises a terminal device (18),
the terminal equipment is respectively connected with the heating mechanism and the pressurizing mechanism, the heating mechanism is also used for detecting the temperature of water in the tubular object and transmitting the temperature to the terminal equipment, the pressurizing mechanism is also used for detecting the pressure in the tubular object and transmitting the pressure to the terminal equipment, and the terminal equipment is used for receiving and displaying the detected temperature value and pressure value.
6. A tubular deformation detection device according to claim 2, wherein the auxiliary means further comprises a sleeve (4),
the sleeve is wrapped outside the tubular object and used for heat preservation.
7. A tubular deformation detection device according to claim 1, wherein the indicator stick is fastened to the outer wall of the tubular by means of a collar (13).
8. The tube deformation detecting device according to claim 7, wherein the indicating rods are arranged in a group, the two indicating rods are respectively arranged on opposite sides of the lantern ring, and one micrometer is respectively arranged on the outer side of each indicating rod.
9. The device for detecting deformation of a tubular object according to any one of claims 1 to 8, further comprising a finite element analysis module for performing finite element analysis according to parameters of the tubular object to obtain theoretical deformation data and deformation distribution data.
10. The device for detecting deformation of a tubular object according to any one of claims 1 to 8, further comprising a support (5), a micrometer support (12),
the support frame is used for supporting the tubular object, micrometer support locates the radial both sides of tubular object, micrometer locates on the micrometer support.
CN202310019066.4A 2023-01-06 2023-01-06 Tubular object deformation detection device Pending CN116465754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310019066.4A CN116465754A (en) 2023-01-06 2023-01-06 Tubular object deformation detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310019066.4A CN116465754A (en) 2023-01-06 2023-01-06 Tubular object deformation detection device

Publications (1)

Publication Number Publication Date
CN116465754A true CN116465754A (en) 2023-07-21

Family

ID=87183058

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310019066.4A Pending CN116465754A (en) 2023-01-06 2023-01-06 Tubular object deformation detection device

Country Status (1)

Country Link
CN (1) CN116465754A (en)

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