CN113506645A - Micro-amplitude impact wear test device for U-shaped heat transfer pipe - Google Patents

Micro-amplitude impact wear test device for U-shaped heat transfer pipe Download PDF

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Publication number
CN113506645A
CN113506645A CN202110771856.9A CN202110771856A CN113506645A CN 113506645 A CN113506645 A CN 113506645A CN 202110771856 A CN202110771856 A CN 202110771856A CN 113506645 A CN113506645 A CN 113506645A
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heat transfer
shaped heat
vibration
transfer pipe
micro
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CN202110771856.9A
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CN113506645B (en
Inventor
高增梁
董旭鑫
周明珏
潘州鑫
李曰兵
金伟娅
何兴
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/001—Mechanical simulators
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/017—Inspection or maintenance of pipe-lines or tubes in nuclear installations
    • 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)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

The invention discloses a micro-amplitude impact wear test device for a U-shaped heat transfer pipe, which relates to the field of micro-amplitude impact wear tests and comprises a fixed panel, an anti-vibration strip assembly, the U-shaped heat transfer pipe, a micro-amplitude impact support structure and a vibration exciter assembly, wherein the fixed panel is a hollowed panel formed by splicing a left fixed panel and a right fixed panel, the surfaces of the left fixed panel and the right fixed panel are respectively provided with a plurality of linear guide rails along the height direction, a plurality of semi-arc rails along the length direction, the semi-arc rails of the left fixed panel and the semi-arc rails of the right fixed panel form arc guide rails, the U-shaped heat transfer pipe is fixed on the arc guide rails through the anti-vibration strip assembly, the matching part of the linear guide rails and the straight pipe sections of the U-shaped heat transfer pipe is provided with the micro-amplitude impact support structure, the vibration exciter assembly comprises a vibration exciter, a connecting rod and a sleeve, the vibration exciter is fixed on the fixed panel, and the U-shaped heat transfer pipe is sleeved in the sleeve, the vibration exciter is connected with the sleeve through the connecting rod, and the vibration exciter has the advantages of being reasonable in structural design, simple to operate and good in stability.

Description

Micro-amplitude impact wear test device for U-shaped heat transfer pipe
Technical Field
The invention relates to the field of micro-amplitude impact wear tests, in particular to a micro-amplitude impact wear test device for a U-shaped heat transfer pipe.
Background
Steam generators are important equipment in pressurized water reactor power plants responsible for the heat exchange between the primary and secondary circuits. The heat transfer tubes are the interfaces of two participating heat exchange loop media, and once the heat transfer tubes are broken, nuclear materials are leaked, and the safety of a nuclear power plant and the periphery of the nuclear power plant is seriously threatened.
Under the influence of flow-induced vibration, along with the increase of service life of the steam generator, the outer side of the heat transfer pipe is abraded at multiple positions and thinned, so that the service life of the heat transfer pipe is sharply reduced, and even the heat transfer pipe is broken in severe cases. The heat transfer pipe abrasion test to simulate the actual working condition is difficult to develop, so most scholars adopt a more convenient alternative scheme to simulate the impact load abrasion test caused by flow-induced vibration, and study the influence of dynamic load on the abrasion of the heat transfer pipe.
In many conventional heat transfer pipe impact wear test apparatuses, a straight heat transfer pipe is often used as a research object, and a test apparatus for a wear research of a U-shaped heat transfer pipe is rarely available.
Disclosure of Invention
In view of the problems in the prior art, the invention aims to provide a test device for testing abrasion of a U-shaped heat transfer pipe, which has the characteristics of reasonable structural design, simplicity in operation and good stability.
The invention provides a micro-amplitude impact wear test device for a U-shaped heat transfer pipe, which comprises a fixed panel, an anti-vibration strip assembly, the U-shaped heat transfer pipe, a micro-amplitude impact support structure and a vibration exciter assembly, wherein the fixed panel is a hollow panel formed by splicing a left fixed panel and a right fixed panel, the surface of the left fixed panel and the surface of the right fixed panel are respectively provided with a plurality of linear guide rails along the height direction of the fixed panel, the surface of the left fixed panel and the surface of the right fixed panel are respectively provided with a plurality of semi-circular arc rails along the width direction of the fixed panel, the semi-circular rails of the left fixed panel and the semi-circular rails of the right fixed panel form circular arc guide rails for arranging the U-shaped heat transfer pipe, the U-shaped heat transfer pipe is fixed between the circular arc guide rails through a group of anti-vibration strip assemblies, two ends of the circular arc guide rails are respectively intersected with the corresponding linear guide rails, and the matching part of the linear guide rails and the straight pipe sections of the U-shaped heat transfer pipe is provided with the micro-amplitude impact support structure, the vibration exciter assembly comprises a vibration exciter, a connecting rod and a sleeve, the vibration exciter is fixed on the fixed panel, the straight tube section of the U-shaped heat transfer tube is sleeved in the sleeve, and the vibration exciter is connected with the sleeve through the connecting rod.
Further, the heat transfer pipe support is arranged at two ends of the U-shaped heat transfer pipe and clamped on the linear guide rail.
Further, anti-vibration strip subassembly include anti-vibration strip one and with anti-vibration strip one assorted anti-vibration strip two, anti-vibration strip one inserts in the circular arc guide rail, anti-vibration strip two pass through the fix with screw on anti-vibration strip one, U type heat-transfer pipe is located between anti-vibration strip one and the anti-vibration strip two.
Furthermore, the shape of the matching part of the first anti-vibration strip and the arc guide rail is matched with that of the arc guide rail.
Furthermore, the micro-amplitude impact supporting structure comprises a supporting base, a load sensor and a displacement control slider, wherein the center of the surface of the supporting base is inwards recessed, the displacement control slider is symmetrically arranged at the recessed part of the supporting base, the load sensor is arranged on the displacement control slider, a U-shaped groove matched with the linear guide rail is arranged at the bottom of the supporting base, the supporting base is connected to the linear guide rail in a clamped mode through the U-shaped groove, and the straight pipe section of the U-shaped heat transfer pipe is arranged between the load sensors.
Further, the vibration exciter comprises a vibration exciter base, wherein the vibration exciter base is arranged at the bottom of the vibration exciter and is fixed on the fixing panel.
Furthermore, a group of screw holes are formed in the vibration exciter base, and the vibration exciter base penetrates through the screw holes through screws and is fixed on the fixing panel.
Furthermore, the number of the vibration exciters is determined according to the field working condition.
Furthermore, a plurality of taper pins for positioning are arranged at the splicing position of the left fixing panel and the right fixing panel; the left side of the left fixing panel and the right side of the right fixing panel are both provided with a plurality of U-shaped connecting plates; the top of left side fixed panel and the top of right fixed panel all are equipped with a set of screw hole that is used for installing the lug screw.
Furthermore, the anti-vibration strip assemblies are distributed on the bent pipe sections of the U-shaped heat transfer pipe, and the number of the anti-vibration strip assemblies is determined according to test requirements.
The invention has the beneficial effects that:
1) the device is used for the test of the abrasion research of the U-shaped heat transfer pipe, the U-shaped heat transfer pipe is arranged on an arc guide rail on a fixed panel and a linear guide rail corresponding to the arc guide rail, a micro-amplitude impact supporting structure is arranged at the matching part of the linear guide rail and a straight pipe section of the U-shaped heat transfer pipe, the straight pipe section of the U-shaped heat transfer pipe is sleeved in a sleeve, a vibration exciter is connected with the sleeve through a connecting rod, the U-shaped heat transfer pipe is impacted with the micro-amplitude impact supporting structure by the exciting force output by the vibration exciter after the vibration exciter is started, a load sensor acquires the impact load on the U-shaped heat transfer pipe in each impact, the impact load is fed back to a computer and records real-time data in time, after the test is finished, the abrasion areas of the micro-amplitude impact supporting structure and the heat transfer pipe at an anti-vibration strip are detected, and the subsequent abrasion condition analysis is carried out by combining the data fed back by the load sensor, thereby designing the heat transfer pipe, Accurate and reliable test basis is provided for manufacturing and maintenance, and the fatigue life of the heat transfer pipe is prolonged;
2) the device has the characteristics of reasonable structural design, convenience and quickness in operation and good stability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic front view of the apparatus of the present invention;
FIG. 3 is an enlarged detail view taken at A in FIG. 1;
FIG. 4 is an enlarged detail view at B of FIG. 1;
fig. 5 is an enlarged detail view at C in fig. 1.
In the figure: 1-fixing the panel; a 101-U shaped connecting plate; 102-left fixed panel; 103-right fixed panel; 104-arc guide rail; 105-a linear guide; 2-anti-vibration bar assembly; 201-anti-vibration strip I; 202-anti-vibration strips II; 3-U-shaped heat transfer tubes; 4-a slight amplitude impact support structure; 401-a support base; 402-a load cell; 403-displacement control slide; 5, vibration exciter; 501-connecting rod; 502-a sleeve; 503-vibration exciter base; 6-heat transfer pipe support; 7-a lug screw; 8-taper pin.
Detailed Description
The invention will be further described with reference to the accompanying drawings, to which, however, the invention is not limited.
As shown in fig. 1-5, U-shaped heat transfer pipe slight impact wear test device, including mounting panel 1, anti-vibration strip subassembly 2, U-shaped heat transfer pipe 3, slight impact bearing structure 4 and vibration exciter subassembly, mounting panel 1 is spliced by left mounting panel 102 and right mounting panel 103 and is formed the fretwork panel, mounting panel 1 adopts a large amount of fretwork designs in this embodiment, when greatly lightening mounting panel weight, experimental maneuverability has also been strengthened, provide the facility of dismouting spare part in the test process for experimental operator, the connecting plate 101 of a plurality of U type has all been welded on the left side of left mounting panel 102 and the right side of right mounting panel 103, when making mounting panel 1 be fixed in on the shear wall with the bolted connection mode, be convenient for the bolt alignment.
The invention discloses a U-shaped heat transfer pipe micro-amplitude impact wear test device, wherein a plurality of linear guide rails are arranged on the surface of a left fixing panel 102 and the surface of a right fixing panel 103 along the height direction of the left fixing panel and a plurality of semi-circular rails are arranged along the length direction of the left fixing panel, the semi-circular rails of the left fixing panel 102 and the semi-circular rails of the right fixing panel 103 form circular guide rails 104 for arranging circular sections of U-shaped heat transfer pipes 3, the respective linear guide rails form the linear sections for arranging the U-shaped heat transfer pipes 3, the U-shaped heat transfer pipes 3 are fixed between the circular guide rails 104 through a group of anti-vibration strip assemblies, two ends of the circular guide rails 104 are respectively intersected with the corresponding linear guide rails 105, in the embodiment, the circular guide rails 104 and the linear guide rails 105 with different sizes are arranged on the surface of a fixing panel 1, and the U-shaped heat transfer pipe wear test device is suitable for U-shaped heat transfer pipes with various sizes.
According to the U-shaped heat transfer pipe micro-impact wear test device, the top of the left fixing panel 102 and the top of the right fixing panel 103 are respectively provided with a group of screw holes for mounting lifting lug screws 7, and the number of the screw holes is 4 in the embodiment, so that the fixing panel 1 is matched with a travelling crane for use in transportation; the splicing position of the left fixing panel 102 and the right fixing panel 103 is provided with a plurality of taper pins 8 for positioning, in this example, the number of the taper pins 8 is 4, and necessary strength check needs to be performed on the taper pins 8 before the test.
The invention discloses a micro-amplitude impact wear test device for a U-shaped heat transfer pipe.A vibration-proof strip assembly 2 is distributed at a bent pipe section of the U-shaped heat transfer pipe 3, the number of the vibration-proof strip assembly 2 can be determined according to test requirements, the vibration-proof strip assembly 2 comprises a first vibration-proof strip 201 and a second vibration-proof strip 202 matched with the first vibration-proof strip 201, the first vibration-proof strip 201 is inserted into an arc guide rail 104 and can move along the arc guide rail 104, so that the installation position of the vibration-proof strip is changed, wherein the shape of the matching part of the first vibration-proof strip 201 and the arc guide rail 104 is matched with that of the arc guide rail 104, the second vibration-proof strip 202 is fixed on the first vibration-proof strip 201 through screws, and the U-shaped heat transfer pipe 3 is positioned between the first vibration-proof strip 201 and the second vibration-proof strip 202.
The invention discloses a micro-amplitude impact wear test device for a U-shaped heat transfer pipe, wherein a micro-amplitude impact support structure 4 is arranged at the matching part of a linear guide rail 105 and a straight pipe section of a U-shaped heat transfer pipe 3, the micro-amplitude impact support structure 4 comprises a support base 401, a load sensor 402 and a displacement control slide block 403, the surface center of the support base 401 is inwards sunken, the sunken part is symmetrically provided with the displacement control slide block 403, the displacement control slide block 403 is provided with the load sensor 402, wherein the load sensor 402 can monitor the impact load size of the U-shaped heat transfer pipe 3 after being excited by a load in real time, the movement range of the U-shaped heat transfer pipe 3 under the excitation action of the load is changed by changing the distance between the two displacement control slide blocks 403, the bottom of the support base 401 is provided with a U-shaped groove matched with the linear guide rail 105, the support base 401 is clamped on the linear guide rail 105 through the U-shaped groove, so that the micro-amplitude impact support structure 4 can slide up and down on the linear guide rail 105, and the straight pipe section of the U-shaped heat transfer pipe 3 is arranged between the load sensors 402.
The invention discloses a micro-amplitude impact wear test device for a U-shaped heat transfer pipe, wherein a vibration exciter assembly comprises a vibration exciter 5, a connecting rod 501, a sleeve 502 and a vibration exciter base 503, the vibration exciter 5 is fixed on a fixed panel 1, a straight pipe section of the U-shaped heat transfer pipe 3 is sleeved in the sleeve 502, the vibration exciter 5 is connected with the sleeve 502 through the connecting rod 501, the vibration exciter 5 transmits exciting force to the U-shaped heat transfer pipe 3 through the connecting rod 501 and the sleeve 502, the installation position of the vibration exciter 5 can be changed according to actual test requirements, the number of the vibration exciter 5 can be adjusted according to field working conditions, a single vibration exciter 5 can be selected for carrying out load excitation on the U-shaped heat transfer pipe 3 in a test, and a plurality of vibration exciters 5 can also be selected for working simultaneously.
The vibration exciter base 503 is arranged at the bottom of the vibration exciter 5, a group of screw holes are arranged on the vibration exciter base 503, the number of the screw holes is 4 in the embodiment, and the vibration exciter base 503 passes through the screw holes through screws and is fixed on the fixing panel 1.
The invention discloses a micro-impact wear test device for a U-shaped heat transfer pipe, which comprises a heat transfer pipe support 6, wherein the two ends of a straight pipe section of the U-shaped heat transfer pipe 3 are respectively provided with the heat transfer pipe support 6, and the heat transfer pipe support 6 is clamped on a linear guide rail 105 and can slide up and down along the linear guide rail 105.
The working process is as follows:
the vibration exciter 5 is used for realizing parameter setting through a controller connected with the vibration exciter 5, the set parameters comprise vibration exciting frequency, vibration exciting load, vibration exciting duration and the like, after the parameter setting is finished, the vibration exciter 5 is started, the U-shaped heat transfer pipe 3 is impacted with the micro-amplitude impact supporting structure 4 under the action of the exciting force output by the vibration exciter 5, and the load sensor 402 acquires the impact load on the U-shaped heat transfer pipe 3 in each impact, feeds the impact load back to a computer and records real-time data in time. After the test is finished, the abrasion areas of the heat transfer pipes at the micro-amplitude impact support structures 4 and the anti-vibration strips 2 are detected, and subsequent abrasion condition analysis is carried out by combining the data fed back by the load sensors 402.

Claims (10)

  1. The U-shaped heat transfer pipe micro-amplitude impact wear test device is characterized by comprising a fixing panel (1), a vibration-resistant strip assembly (2), a U-shaped heat transfer pipe (3), a micro-amplitude impact support structure (4) and a vibration exciter assembly, wherein the fixing panel (1) is formed by splicing a left fixing panel (102) and a right fixing panel (103) into a hollowed panel, a plurality of linear guide rails are arranged on the surface of the left fixing panel (102) and the surface of the right fixing panel (103) along the height direction of the left fixing panel, a plurality of semi-arc rails are arranged on the surface of the left fixing panel (102) and the surface of the right fixing panel (103) along the length direction of the left fixing panel, the semi-arc rails of the left fixing panel (102) and the semi-arc rails of the right fixing panel (103) form arc guide rails (104) for arranging the U-shaped heat transfer pipe (3), and the U-shaped heat transfer pipe (3) is fixed between the arc guide rails (104) through a group of vibration-resistant strip assemblies, the two ends of the arc guide rail (104) are respectively intersected with the corresponding linear guide rail (105), a micro-amplitude impact supporting structure (4) is arranged at the matched part of the linear guide rail (105) and the straight tube section of the U-shaped heat transfer tube (3), the vibration exciter assembly comprises a vibration exciter (5), a connecting rod (501) and a sleeve (502), the vibration exciter (5) is fixed on the fixed panel (1), the straight tube section of the U-shaped heat transfer tube (3) is sleeved in the sleeve (502), and the vibration exciter (5) is connected with the sleeve (502) through the connecting rod (501).
  2. 2. The U-shaped heat transfer tube slight impact wear test device according to claim 1, characterized by comprising a heat transfer tube support (6), wherein heat transfer tube supports (6) are arranged at both ends of the U-shaped heat transfer tube (3), and the heat transfer tube supports (6) are clamped on the linear guide rails (105).
  3. 3. The U-shaped heat transfer pipe micro-amplitude impact wear test device according to claim 1, wherein the anti-vibration bar assembly (2) comprises a first anti-vibration bar (201) and a second anti-vibration bar (202) matched with the first anti-vibration bar (201), the first anti-vibration bar (201) is inserted into the circular arc guide rail (104), the second anti-vibration bar (202) is fixed on the first anti-vibration bar (201) through screws, and the U-shaped heat transfer pipe (3) is located between the first anti-vibration bar (201) and the second anti-vibration bar (202).
  4. 4. The U-shaped heat transfer pipe micro-amplitude impact wear test device according to claim 3, characterized in that the shape of the matching part of the vibration resistant strip I (201) and the arc guide rail (104) is matched with the arc guide rail (104).
  5. 5. The U-shaped heat transfer pipe micro-amplitude impact wear test device according to claim 1, wherein the micro-amplitude impact support structure (4) comprises a support base (401), a load sensor (402) and a displacement control slider (403), the surface center of the support base (401) is recessed inwards, the displacement control slider (403) is symmetrically arranged at the recessed position, the load sensor (402) is arranged on the displacement control slider (403), a U-shaped groove matched with the linear guide rail (105) is arranged at the bottom of the support base (401), the support base (401) is clamped on the linear guide rail (105) through the U-shaped groove, and the straight pipe section of the U-shaped heat transfer pipe (3) is arranged between the load sensors (402).
  6. 6. The U-shaped heat transfer tube micro-amplitude impact wear test device according to claim 1, characterized by comprising an exciter base (503), wherein the exciter base (503) is arranged at the bottom of the exciter (5), and the exciter base (503) is fixed on the fixing panel (1).
  7. 7. The U-shaped heat transfer tube micro-amplitude impact wear test device according to claim 6, wherein a set of screw holes are formed in the exciter base (503), and the exciter base (503) is fixed on the fixing panel (1) through the screw holes by screws.
  8. 8. The U-shaped heat transfer tube micro-amplitude impact wear test device according to claim 1 or 6, characterized in that the number of the vibration exciters (5) is determined according to field working conditions.
  9. 9. The U-shaped heat transfer tube micro-impact wear test device according to claim 1, wherein a plurality of taper pins (8) for positioning are arranged at the joint of the left fixing panel (102) and the right fixing panel (103); the left side of the left fixing panel (102) and the right side of the right fixing panel (103) are respectively provided with a plurality of U-shaped connecting plates (101); the top of the left fixing panel (102) and the top of the right fixing panel (103) are both provided with a group of screw holes for mounting lifting lug screws (7).
  10. 10. The U-shaped heat transfer tube slight impact wear test device according to claim 1 or 3, characterized in that the vibration resistant bar assemblies (2) are distributed in the bent sections of the U-shaped heat transfer tube (3), and the number thereof is determined according to the test requirements.
CN202110771856.9A 2021-07-08 2021-07-08 U-shaped heat transfer tube micro-amplitude impact abrasion test device Active CN113506645B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000136978A (en) * 1998-10-30 2000-05-16 Mitsubishi Heavy Ind Ltd Shock/vibration testing method and device used for the same, and mounting mechanism of vibration sensor used for shock/vibration-testing device
CN103592195A (en) * 2013-11-27 2014-02-19 西南交通大学 Machine and method for slight impact wear test on nuclear power station steam generator heat-transfer pipe
CN107025315A (en) * 2016-02-02 2017-08-08 上海核工程研究设计院 A kind of U-shaped heat-transfer pipe Flow vibration of nuclear power station steam generator and fretting wear coupling analysis computational methods
CN209559668U (en) * 2018-10-16 2019-10-29 浙江工业大学 Thin-walled heat-transfer pipe impact wear test device under arbitrary excitation
CN113063691A (en) * 2021-04-21 2021-07-02 浙江工业大学 Vertical direction-changeable random excitation heat transfer pipe fretting wear test device
CN215265596U (en) * 2021-07-08 2021-12-21 浙江工业大学 Micro-amplitude impact wear test device for U-shaped heat transfer pipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000136978A (en) * 1998-10-30 2000-05-16 Mitsubishi Heavy Ind Ltd Shock/vibration testing method and device used for the same, and mounting mechanism of vibration sensor used for shock/vibration-testing device
CN103592195A (en) * 2013-11-27 2014-02-19 西南交通大学 Machine and method for slight impact wear test on nuclear power station steam generator heat-transfer pipe
CN107025315A (en) * 2016-02-02 2017-08-08 上海核工程研究设计院 A kind of U-shaped heat-transfer pipe Flow vibration of nuclear power station steam generator and fretting wear coupling analysis computational methods
CN209559668U (en) * 2018-10-16 2019-10-29 浙江工业大学 Thin-walled heat-transfer pipe impact wear test device under arbitrary excitation
CN113063691A (en) * 2021-04-21 2021-07-02 浙江工业大学 Vertical direction-changeable random excitation heat transfer pipe fretting wear test device
CN215265596U (en) * 2021-07-08 2021-12-21 浙江工业大学 Micro-amplitude impact wear test device for U-shaped heat transfer pipe

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