CN113724903B - Sensor examination device - Google Patents

Sensor examination device Download PDF

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Publication number
CN113724903B
CN113724903B CN202110999962.2A CN202110999962A CN113724903B CN 113724903 B CN113724903 B CN 113724903B CN 202110999962 A CN202110999962 A CN 202110999962A CN 113724903 B CN113724903 B CN 113724903B
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China
Prior art keywords
section
test
sensor
test piece
fluid
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CN202110999962.2A
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CN113724903A (en
Inventor
席志德
喻丹萍
杨杰
马建中
孙磊
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Nuclear Power Institute of China
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Nuclear Power Institute of China
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Priority to CN202110999962.2A priority Critical patent/CN113724903B/en
Publication of CN113724903A publication Critical patent/CN113724903A/en
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C17/00Monitoring; Testing ; Maintaining
    • G21C17/001Mechanical simulators
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C17/00Monitoring; Testing ; Maintaining
    • G21C17/017Inspection or maintenance of pipe-lines or tubes in nuclear installations
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

In order to solve the technical problem that the sensor is inevitably broken, loosened or fallen off when in use due to the lack of a test device for testing the sensor and the mounting mode of the sensor under high-speed hydraulic flushing in the prior art, the embodiment of the invention provides a sensor test device, which comprises: a fluid conduit for introducing a fluid; the test piece is arranged in the fluid pipeline and is used for installing a sensor to be tested; and a hydraulic device connected with the fluid pipeline for adjusting the flow rate of the fluid flowing into the fluid pipeline. According to the embodiment of the invention, the fluid flow characteristics consistent with the actual measurement positions are constructed through the fluid pipeline, the test piece and the hydraulic device, so that the mounting modes of different types of sensors, the protection process of the lead wire and the sealing of the lead wire can be tested under the action of different water flow speeds.

Description

Sensor examination device
Technical Field
The invention relates to a sensor test device.
Background
In a vibration test of a nuclear reactor internals and a heat transfer tube flow of a steam generator, a large number of measurement sensors are arranged on a test piece.
The sensors mounted on the test piece are subjected to high-speed flushing in the axial or transverse direction of the external running water. In extreme cases, the wires of the sensor and the fixing support thereof, as well as the sensor itself, may break, loosen and fall off due to the action of the high-speed fluid, which affects the whole measuring process. For the actual reactor measurement of the nuclear reactor, the foreign matters caused by the high-speed hydraulic flushing of the sensor can have serious influence on the safety of the reactor, and the subsequent foreign matters are very troublesome to clean.
Therefore, if the sensor can be subjected to a pre-scouring test before the formal measurement, the phenomena of loosening and falling of the sensor or lead breakage in the measurement process can be greatly avoided.
It is necessary to design a test device that can perform the sensor and its mounting means under high-speed hydraulic flushing.
Disclosure of Invention
In order to solve the technical problem that the sensor is inevitably broken, loosened or fallen off when in use due to the lack of a test device for testing the sensor and the mounting mode of the sensor under high-speed hydraulic flushing in the prior art, the embodiment of the invention provides a sensor test device.
The embodiment of the invention is realized by the following technical scheme:
the embodiment of the invention provides a sensor test device, which comprises:
a fluid conduit for introducing a fluid;
the test piece is arranged in the fluid pipeline and is used for installing a sensor to be tested; and
and the hydraulic device is connected with the fluid pipeline and is used for adjusting the flow rate of the fluid flowing into the fluid pipeline.
Further, the fluid conduit includes:
the test section is used for installing the test piece and is provided with a window for observing the state of the sensor to be tested on the test piece.
Further, the test piece includes:
the first test piece is arranged in the fluid pipeline and is used for installing the sensor main body to be tested; and
the second test piece is arranged in the fluid pipeline and opposite to the first test piece in position and is used for installing a lead wire of the sensor to be tested.
Further, the test section is provided with a side visual window and a front visual window; the side visual window and the first test piece are arranged in the test section in a positive opposite mode, and the front visual window is arranged on the side face of the test section adjacent to the first test piece; the second test piece and the first test piece are obliquely and oppositely arranged at the test section.
Further, the fluid pipeline further comprises an outlet section, an inlet section and a steady flow section; the inlet section, the steady flow section, the test section and the outlet section are sequentially communicated; the inlet section of the fluid conduit is connected to a hydraulic device.
Further, the test piece is provided with a frequency regulator.
Further, the side visual window is made of transparent materials; the front visible window is made of transparent materials; and a plurality of channels are arranged on one side of the transparent material of the front visual window, which is close to the inside of the test section.
Further, the inlet section comprises an inlet section upper flange, an inlet section main pipe, an inlet section reducing transition section, an inlet section connecting loop pipe and an inlet section lower flange which are connected in sequence; the inlet section is connected with the hydraulic device through an inlet section upper flange, and an inlet section lower flange is connected with the steady flow section.
Further, the outlet section comprises an outlet section upper flange, an outlet section connecting loop pipe, an outlet section reducing transition section, an outlet loop main pipe and an outlet section lower flange which are connected in sequence.
Further, the test section also comprises a test tube main tube; the two ends of the main pipe of the test pipe are respectively provided with an upper flange of the test section and a lower flange of the test section; the first test piece, the front visual window, the side visual window and the second test piece are all arranged on the main pipe of the test pipe; the steady flow section is connected with the upper flange of the test section; and the upper flange of the test section is connected with the inlet section.
Compared with the prior art, the embodiment of the invention has the following advantages and beneficial effects:
according to the sensor test device disclosed by the embodiment of the invention, the fluid flow characteristics consistent with the actual measurement positions are constructed through the fluid pipeline, the test piece and the hydraulic device, so that the test can be performed on the installation modes of different types of sensors, the protection process of the lead wires and the sealing under the action of different water flow speeds.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a sensor test device.
Fig. 2 is a schematic view of the outlet section structure.
FIG. 3 is a block diagram of the test section.
FIG. 4 is a schematic side view of a first test piece mounting structure.
Fig. 5 is a schematic front view of the first test piece mounting structure.
Fig. 6 is a schematic view of the structure of the first test piece.
Fig. 7 is a front view of the front view window.
Fig. 8 is a schematic side view of the front view window structure.
Fig. 9 is a schematic diagram of a second test piece structure.
FIG. 10 is a schematic view of a fluid flow stabilizing section.
Fig. 11 is a schematic view of the inlet section structure.
FIG. 12 is a schematic view of sensor installation prior to testing.
FIG. 13 is a schematic view of sensor installation after test.
FIG. 14 is a schematic view of post-test sensor lead installation.
In the drawings, the reference numerals and corresponding part names:
in the figure, 1-outlet section; 2-test section; 3-a steady flow section; 4-an inlet section; 5-mounting a bracket; 6-an upper flange of the outlet section; 7-connecting the outlet section with a loop pipe; 8-an outlet section reducing transition section; 9-an outlet loop main pipe; 10-an outlet section lower flange; 11-flange on test section; 12-a first test piece; 13, a test section main pipe; 14-a test section lower flange; 15-a front viewing window; 16-side viewing window; 17-a second test piece; 18-a first test piece mounting frame; 19-mounting a panel; 20-leading wires; 21-first test piece mounting panel seal; 22-first test piece panel connection bolts; 23-a first test piece fixing nut; 24-sealing the first test piece; 25-frequency regulator; 26-a sensor; 27-channel; 28-side view window seal; 29-side view mirror; 30-side view window press plate flange; 31-side visual window fixing bolts; 32-a second test piece fixing bolt; 33-inlet section lower flange; 34-a flange on the steady flow section; 35-a steady flow section main pipe; 36-a steady flow section lower flange; 37-an inlet section upper flange; 38-flange connection mounting bracket holes on the inlet section; 39-flange connection steady flow section mounting hole on the inlet section; 40-an inlet section main pipe; 41-an inlet section reducing transition section; 42-inlet section connects the return line.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order not to obscure the invention.
Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the invention. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
Examples
In order to solve the technical problem that in the prior art, the sensor is inevitably broken, loosened or separated due to the lack of a test device for testing the sensor and the mounting mode of the sensor under high-speed hydraulic flushing, the embodiment of the invention provides a sensor test device, which is shown by referring to fig. 1-11, and comprises: a fluid conduit for introducing a fluid; the test piece is arranged in the fluid pipeline and is used for installing a sensor to be tested; and a hydraulic device connected with the fluid pipeline for adjusting the flow rate of the fluid flowing into the fluid pipeline.
In fig. 1, the lower end of the fluid pipeline is a water inlet section, and the upper end is a water outlet section; the whole test device is arranged on the mounting bracket 5, and the water inlet end and the water outlet section of the fluid pipeline and the hydraulic device form a hydraulic loop.
Specifically, the hydraulic device and the fluid pipeline form a hydraulic loop of fluid, the flow rate of the fluid is regulated by regulating the flow rate in the hydraulic loop, and the environment of the high-speed hydraulic flushing sensor in actual conditions is simulated by regulating the flow rate of the fluid in the fluid pipeline through the hydraulic device, so that the sensor is tested in the environment.
A window is designed to facilitate the viewing of the sensor's state during the process.
Specifically, the fluid conduit comprises: and the test section 2 is used for installing a test piece and is provided with a window for observing the state of a sensor to be tested on the test piece.
Referring to fig. 3, the test section is provided with a side view window 16 and a front view window 15; the side visual window 16 is arranged on the test section in a positive opposite way to the first test piece, and the front visual window 15 is arranged on the side surface of the test section adjacent to the first test piece; the second test piece and the first test piece are obliquely and oppositely arranged at the test section.
Specifically, the front visual window is disposed on the outside of the test section right in front of the front, the side visual window 16 is disposed on the outside of the test section right, and the second test piece is disposed on the outside of the test section right below the side visual window and is disposed obliquely downward relative to the first test piece.
Further, the fluid pipeline also comprises an outlet section 1, an inlet section 4 and a steady flow section 3; the inlet section 4, the steady flow section 3, the test section 2 and the outlet section 1 are sequentially communicated; the inlet section of the fluid conduit is connected to a hydraulic device.
Further, the outlet section comprises an outlet section upper flange 6, an outlet section connecting loop pipe 7, an outlet section reducing transition section 8, an outlet loop main pipe 9 and an outlet section lower flange 10 which are connected in sequence.
Further, the inlet section comprises an inlet section upper flange 37, an inlet section main pipe 40, an inlet section reducing transition section 41, an inlet section connecting loop pipe 42 and an inlet section lower flange 33 which are connected in sequence; the inlet section is connected with the hydraulic device through an inlet section upper flange, and an inlet section lower flange is connected with the steady flow section.
The upper flange 37 of the inlet section is also provided with a flange connection mounting bracket hole 38 on the inlet section and a flange connection steady flow section mounting hole 39 on the inlet section.
The steady flow section comprises a steady flow section upper flange 34, a steady flow section main pipe 35 and a steady flow section lower flange 36 which are connected in sequence.
Further, the test section further comprises a test tube main pipe 13; the two ends of the main pipe of the test pipe are respectively provided with an upper test section flange 11 and a lower test section flange 14; the first test piece 12, the front visual window 15, the side visual window 16 and the second test piece 17 are all arranged on the test tube main tube 13; the steady flow section is connected with the upper flange of the test section; and the upper flange of the test section is connected with the inlet section.
Further, the side visual window is made of transparent materials; the front visible window is made of transparent materials; the transparent material of the front visual window is provided with a plurality of channels 27 at one side close to the inside of the test section.
In order to be convenient for test to the different positions of sensor, test piece setting of test device is first test piece and second test piece, and first test piece is used for the water flow resistance impact test of sensor main part, and the second test piece is used for the water flow resistance impact test of the lead wire of sensor and the collection of lead wire, i.e. intensive pencil.
Specifically, the test piece includes:
a first test piece, which is arranged in the fluid pipeline and is used for installing the sensor main body 26 to be tested; and
and the second test piece is arranged in the fluid pipeline and opposite to the first test piece in position and is used for installing the lead wire 20 of the sensor to be tested.
In order to facilitate the test of the anti-vibration performance of the sensor body, further, the test piece is provided with a frequency adjustor 25.
Referring to fig. 4 to 6, the first test piece is mounted on the test piece mounting panel 19 through the frequency adjustor 25, sealed with the first test piece seal 24, and finally fixed on the mounting panel 19 with the first test piece fixing nut 23. The natural frequency of the first test piece can be adjusted through the frequency adjuster, and the test is performed.
After the first test piece is assembled, the mounting panel 19 is mounted on the first test piece mounting frame 18 and sealed with the first test piece mounting panel seal 21. Finally, the mounting panel 19 is attached to the mounting frame 18 with first test piece panel attachment bolts 22. The mounting frame 18 is welded to the test section main pipe 13. The first test piece extends into the test section through a hole in the test section main pipe 13, and can be subjected to transverse fluid action or axial fluid action by changing the installation mode.
Referring to fig. 6, the sensor to be tested is installed at a position to be tested, and as shown in fig. 8, the vibration resistance of the sensor under different scouring actions can be tested.
In order to observe the state of the sensor during the test, front and side view windows 15 and 16 are provided on the front and side of the test section main tube 13. The front viewing window is made of transparent material, and the inner surface simulates a channel 27 consisting of multiple channels, the radius R and the spacing L of which are consistent with the actual structure.
The side view mirror 29 is made of transparent material, is sealed by the side view mirror seal 28, is pressed by the side view press plate flange 30, and is finally fixed on the panel of the test main tube 13 by the side view fixing bolts 31.
A second test piece 17 is designed upstream of the first test piece 12, the purpose of which is to provide a test environment for dense pipe compositions, which can be chosen according to the specific test task.
The second test piece 17 extends into the test section 13, one end of the second test piece 17 is mounted in the mounting hole of the opposite panel, and the other end is fixed on the panel of the test section by a second test piece fixing bolt 32.
The test device of the embodiment is adopted to carry out scouring test on the sensor used in the flow induced vibration test of the components in the No. 5 unit of the Fuqing nuclear power station. The lead protection and sealing of the sensor and the mounting process of the sensor are examined. After the test, the sealing and mounting process of the sensor with the weak link is improved, so that all sensors are ensured not to be damaged and fall off in the process of the formal test. Reference is made to fig. 12-14.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (7)

1. A sensor test device, comprising:
a fluid conduit for introducing a fluid;
the test piece is arranged in the fluid pipeline and is used for installing a sensor to be tested; and
the hydraulic device is connected with the fluid pipeline and is used for adjusting the flow rate of the fluid flowing into the fluid pipeline;
the fluid conduit comprises:
the test section is used for installing a test piece and is provided with a window for observing the state of a sensor to be tested on the test piece;
the test piece includes:
the first test piece is arranged in the fluid pipeline and is used for installing the sensor main body to be tested; and
the second test piece is arranged in the fluid pipeline and opposite to the first test piece in position and is used for installing a lead wire of the sensor to be tested;
the test section is provided with a side visual window and a front visual window; the side visual window and the first test piece are arranged in the test section in a positive opposite mode, and the front visual window is arranged on the side face of the test section adjacent to the first test piece; the second test piece and the first test piece are obliquely and oppositely arranged at the test section.
2. The sensor test device of claim 1, wherein the fluid conduit further comprises an outlet section, an inlet section, and a steady flow section; the inlet section, the steady flow section, the test section and the outlet section are sequentially communicated; the inlet section of the fluid conduit is connected to a hydraulic device.
3. The sensor test device of claim 1, wherein the test piece is provided with a frequency adjustor.
4. The sensor test apparatus of claim 1, wherein said side viewing window is made of a transparent material; the front visible window is made of transparent materials; and a plurality of channels are arranged on one side of the transparent material of the front visual window, which is close to the inside of the test section.
5. The sensor test device of claim 2, wherein the inlet section comprises an inlet section upper flange, an inlet section main pipe, an inlet section reducing transition section, an inlet section connecting loop pipe and an inlet section lower flange which are connected in sequence; the inlet section is connected with the hydraulic device through an inlet section upper flange, and an inlet section lower flange is connected with the steady flow section.
6. The sensor test device of claim 2, wherein the outlet section comprises an outlet section upper flange, an outlet section connecting loop pipe, an outlet section reducing transition section, an outlet loop main pipe and an outlet section lower flange which are connected in sequence, and the outlet section lower flange is connected with the test section.
7. The sensor test apparatus of claim 1, wherein the test section further comprises a test tube main; the two ends of the main pipe of the test pipe are respectively provided with an upper flange of the test section and a lower flange of the test section; the first test piece, the front visual window, the side visual window and the second test piece are all arranged on the main pipe of the test pipe; the steady flow section is connected with the upper flange of the test section; and the upper flange of the test section is connected with the inlet section.
CN202110999962.2A 2021-08-27 2021-08-27 Sensor examination device Active CN113724903B (en)

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CN202110999962.2A CN113724903B (en) 2021-08-27 2021-08-27 Sensor examination device

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Application Number Priority Date Filing Date Title
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CN113724903B true CN113724903B (en) 2023-11-24

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2399615A1 (en) * 2000-02-11 2001-08-16 Thierry Romanet Non-intrusive method and device for characterising flow perturbations of a fluid inside a pipe
CN103278308A (en) * 2013-04-23 2013-09-04 浙江大学 Visualization experiment device for deep cryogenic two-phase countercurrent process
CN105938074A (en) * 2016-05-17 2016-09-14 西安交通大学 Nuclear reactor fuel assembly bottom nozzle hydraulic scouring test system and test method thereof
CN107631848A (en) * 2017-09-26 2018-01-26 上海核工程研究设计院有限公司 A kind of steam generator heat-transfer pipe line causes vibration testing device
CN110196145A (en) * 2019-06-27 2019-09-03 中广核研究院有限公司 A kind of experimental rig and its application method causing vibration principle for verifying tube bundle flow
CN110828008A (en) * 2019-11-20 2020-02-21 中国核动力研究设计院 Parameter monitoring and sampling system of nuclear fuel irradiation examination device
KR20200069704A (en) * 2018-12-07 2020-06-17 탑테크(주) System for testing of stress corrosion cracking

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2399615A1 (en) * 2000-02-11 2001-08-16 Thierry Romanet Non-intrusive method and device for characterising flow perturbations of a fluid inside a pipe
CN103278308A (en) * 2013-04-23 2013-09-04 浙江大学 Visualization experiment device for deep cryogenic two-phase countercurrent process
CN105938074A (en) * 2016-05-17 2016-09-14 西安交通大学 Nuclear reactor fuel assembly bottom nozzle hydraulic scouring test system and test method thereof
CN107631848A (en) * 2017-09-26 2018-01-26 上海核工程研究设计院有限公司 A kind of steam generator heat-transfer pipe line causes vibration testing device
KR20200069704A (en) * 2018-12-07 2020-06-17 탑테크(주) System for testing of stress corrosion cracking
CN110196145A (en) * 2019-06-27 2019-09-03 中广核研究院有限公司 A kind of experimental rig and its application method causing vibration principle for verifying tube bundle flow
CN110828008A (en) * 2019-11-20 2020-02-21 中国核动力研究设计院 Parameter monitoring and sampling system of nuclear fuel irradiation examination device

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