CN207197693U - Pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring - Google Patents
Pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring Download PDFInfo
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- CN207197693U CN207197693U CN201721253412.1U CN201721253412U CN207197693U CN 207197693 U CN207197693 U CN 207197693U CN 201721253412 U CN201721253412 U CN 201721253412U CN 207197693 U CN207197693 U CN 207197693U
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Abstract
It the utility model is related to a kind of heat fatigue monitoring pipeline outer wall temperature measuring equipment, annular holder including being sheathed on pipe under test outer circumferential, the at least one set of temperature measurement component being arranged on the annular holder, the temperature measurement component includes the thermocouple with detecting head, there is the receiving space for being used for housing the detecting head between the inner side perisporium of the annular holder and the outer perimeter wall of the pipe under test, the annular holder is provided with the mounting hole for being used for installing the thermocouple, the detecting head is affixed tactile through the mounting hole and in the receiving space and with the outer side surface of the pipe under test, the temperature of temperature measuring equipment energy direct measurement pipe under test outer wall of the present utility model, and can measuring according to the change real-time and precise of pipe under test outer wall, detecting head all the time closely touch with pipe under test outer wall by patch in measurement process；It can be individually replaced, change convenient and swift when single thermocouple breaks down；The temperature measuring equipment can also preserve mount message, be easy to later maintenance.
Description
Technical field
It the utility model is related to pipe temperature field of measuring technique, and in particular to a kind of heat fatigue monitoring is surveyed with pipeline outer wall
Warm device.
Background technology
Worldwide pressurized-water reactor nuclear power plant has occurred that series reaction reactor coolant pipeline and tired phase at present
The security incident of pass.American Electric Power research institute（EPRI）Reliability of material project achievement in research shows, caused by fatigue
Often ascendant trend year by year is presented in failure for plant equipment event.Nuclear power station pipeline fatigue problem is mainly derived from design defect, designs rank
Section does not consider the hot transient state being likely to occur comprehensively, therefore the monitoring mitigation strategy of correlation is also not carried out during operation, and it gives core
The safe and reliable operation in power station causes potential risk, and it is that nuclear power station must issues that need special attention that effective management is carried out to it.
The effective control measures for progressively carrying out use both at home and abroad mainly carry out fatigue monitoring to heat fatigue sensitive position, adopt
The numerical value such as collection thermograde change, assess for Thermal Fatigue Damage and provide data support and technical basis with mitigation strategy formulation.Mirror
In this, the temperature alternating of accurate measurement primary Ioops pressure boundary pipeline is the precondition of analysis of fatigue.
Measured for pipe temperature, a kind of method is the perforate on pipeline, inserts thermocouple measurement flow problem, is converted into
Wall surface temperature.But the Nuclear piping for longtime running under high temperature, high pressure, directly on pipeline perforate be unfavorable for ensureing
The integrality of pressure boundary, there is certain security risk.Best bet be measurement pipeline outer wall temperature, then be converted into inwall and
Fluid temperature (F.T.).
A kind of nuclear power station pipeline outside wall surface temperature measuring equipment is disclosed in Chinese patent CN105761767A, by by heat
Galvanic couple is welded on metal film, then metal film is fastened on into pipeline outer wall, so as to without carrying out perforate to tested pipeline
In the case of welding, the temperature of tested pipeline outside wall surface can be relatively accurately measured.But this method has problems with：1、
The data that thermocouple measures not are the temperature of pipeline outer wall, but the temperature of metal film, consider the difference of heat transfer coefficient, then institute
Surveying numerical value and pipeline outer wall actual temperature has different；2nd, during actual installation, because pipeline outer wall is not ten dividers
Then, inevitably cause certain interval be present between metal film and pipeline outer wall, this will also influence the accurate of measurement data
Property；3rd, using welding manner fix thermocouple, when thermocouple breaks down can not single replacing thermocouple, can only integrally more
Change, this adds cost to a certain extent；4th, the information None- identified such as set-up time, installation site, is unfavorable for later maintenance.
In view of above mentioned problem, it is necessary to provide a kind of improved heat fatigue monitoring pipeline outer wall temperature measuring equipment.
The content of the invention
The purpose of this utility model is to provide one kind and adapts to pipeline profile variation and the outer wall temperature of accurate measurement pipe under test
The temperature measuring equipment of degree, and the temperature measuring equipment can preserve mount message, be easy to later maintenance.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of heat fatigue monitoring is surveyed with pipeline outer wall
Warm device, it is characterised in that：Including being sheathed on the annular holder of pipe under test outer circumferential, being arranged on the annular holder
At least one set of temperature measurement component, the temperature measurement component include with detecting head thermocouple, the inner side perisporium of the annular holder with
There is the receiving space for being used for housing the detecting head, the annular holder is provided between the outer perimeter wall of the pipe under test
For installing the mounting hole of the thermocouple, the detecting head through the mounting hole and in the receiving space and with institute
State pipe under test outer side surface be affixed it is tactile.
Further, it is provided between the thermocouple and the annular holder and drives the thermocouple described in provide
The elastic component for being radially orientated elastic force needed for the pipe under test outer wall motion of pipe under test.
Further, the elastic component is spring, and the detecting head is provided with locating part, and the spring housing is located at the heat
On galvanic couple and between the locating part and the inwall of the annular holder.
Further, annular groove is offered the outside week of the detecting head in portion, the locating part is removably is inserted in
Slotted collar in the annular groove.
Further, the thermocouple include along itself axially arrange successively connector, thermocouple body and described
Detecting head, the temperature measurement component also include being used to be set in the protective cover for thermocouple on the outside of the thermocouple body, the thermoelectricity
Even protective case is ordinatedly located in the mounting hole and stretched into the receiving space, and the detecting head is located at the thermocouple
The axial side of protective case.
Further, the protective cover for thermocouple, which has, is engaged the installation shaft part of installation with the mounting hole, positioned at institute
The limit shaft section at installation shaft part outboard shafts end is stated, the temperature measurement component also includes being set in the installation shaft part and is located at the limit
Adjusting washer between position shaft part and the annular holder outer side surface.
Further, the annular holder includes being hinged and symmetrically arranged two arc rings, the two arc rings
Openend be connected by fastening assembly, the fastening assembly for ease of two arc rings dismounting hook clamping joint.
Further, multiple described mounting holes are offered on the annular holder circumferentially spacedly, wherein at least one
Described temperature measurement component is provided with individual described mounting hole.
Further, the annular holder is circumferentially spaced is provided with multiple supporting studs, the free end of the supporting studs
Screwed in from the outer wall of the annular holder and be supported on the outside wall surface of the pipe under test.
Further, the outside wall surface of the annular holder is carved with the concaveconvex structure for being loaded with recognizable information.
After above technical scheme, the utility model has the following advantages that compared with prior art：It is of the present utility model
The temperature of temperature measuring equipment energy direct measurement pipe under test outer wall, and can be according to the progress of the change real-time and precise of pipe under test outer wall
Measure, detecting head all the time closely touch with pipe under test outer wall by patch in measurement process；Can be independent when single thermocouple breaks down
Change, change convenient and swift；The concaveconvex structure for being loaded with recognizable information is set to be advantageous to by the outside wall surface in annular holder
Follow-up is tracked and safeguarded.
Brief description of the drawings
Accompanying drawing 1 is the section structure diagram of heat fatigue monitoring pipeline outer wall temperature measuring equipment of the present utility model；
Accompanying drawing 2 is the structural representation vertically of heat fatigue monitoring pipeline outer wall temperature measuring equipment of the present utility model；
Accompanying drawing 3 is the mplifying structure schematic diagram at A in accompanying drawing 1；
Accompanying drawing 4 is the mplifying structure schematic diagram at B in accompanying drawing 1.
Wherein, 1, thermocouple；101st, detecting head；102nd, thermocouple body；103rd, connector；2nd, annular holder；201st, arc
Shape ring；202nd, fastening assembly；3rd, pipe under test；4th, receiving space；5th, supporting studs；6th, protective cover for thermocouple；601st, installation axle
Section；602nd, limit shaft section；7th, lead-out wire；8th, adjusting washer；9th, spring；10th, annular groove；11st, slotted collar；12nd, concaveconvex structure；
13rd, mounting hole.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
As shown in Figures 1 to 4, pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring, including is sheathed on pipe under test week
Annular holder 2 laterally and at least one set of temperature measurement component being arranged on annular holder 2, temperature measurement component, which comprises at least, to be had
The thermocouple 1 of detecting head 101, there is receiving space 4 between the inner side perisporium of annular holder 2 and the outer perimeter wall of pipe under test 3,
Receiving space 4 is used to house detecting head 101.
Annular holder 2 includes being hinged and symmetrically arranged two arc rings 201, the openend of two arc rings 201 lead to
Fastening assembly 202 is crossed to be connected.For ease of installation and removal, the fastening assembly 202 is preferably hook clamping joint.
As shown in Figures 2 and 3, annular holder 2 is circumferentially spaced is provided with multiple supporting studs 5, the free end of supporting studs 5
Screwed in from the outer wall of annular holder 2 and be supported on the outside wall surface of pipe under test 3.Supporting studs 5 annular holder 2 and are treated to support
Test tube road 3 so that form the receiving space 4 between the two.Supporting studs 5 use full thread structure, so as to easily adjust
The extension elongation of supporting studs 5 is saved, to adapt to the change of the profile of pipe under test 3.Preferably, multiple uniform intervals of supporting studs 5
It is arranged in the circumference of annular holder 2.
Multiple mounting holes 13 are offered on annular holder 2 circumferentially spacedly, are provided with wherein at least one mounting hole 13
Temperature measurement component.
As shown in figure 4, thermocouple 1 is included along connector 103, thermocouple body 102 and the spy itself axially arranged successively
Gauge head 101, temperature measurement component also include being used for the protective cover for thermocouple 6 for being set in the outside of thermocouple body 102, protective cover for thermocouple
6 are ordinatedly located in mounting hole 13 and stretch into receiving space 4, and detecting head 101 is located at the axial direction one of protective cover for thermocouple 6
Side.Detecting head 101 enters in receiving space 4 through mounting hole 13 and is affixed tactile, detecting head with the outer side surface of pipe under test 3
101 measuring the outside wall temperature of pipe under test 3.Lead-out wire 7 is provided with the connector of thermocouple 1, so as to by detecting head
101 temperature signals measured are converted to electric signal and are transferred to receiver.
According to thermometric needs, the quantity of thermocouple 1 and position can accordingly adjust.
Protective cover for thermocouple 6, which has, is engaged the installation shaft part 601 of installation with mounting hole 13, outside installation shaft part 601
The limit shaft section 602 at side axle end, temperature measurement component also include being set on installation shaft part 602 and positioned at limit shaft section 602 and annular
Adjusting washer 8 between the outer side surface of fixture 2.
By the thickness for changing adjusting washer 8, in that context it may be convenient to adjust the extended length of thermocouple 1.
It is provided between the inwall of detecting head 101 and annular holder 2 and drives thermocouple 1 along pipe under test 3 to provide
It is radially orientated the elastic component of elastic force needed for the motion of the outer wall of pipe under test 3.
In the present embodiment, above-mentioned elastic component is spring 9.The head of thermocouple 1 is inserted radially into appearance along the annular holder 2
Receive space 4, be provided with annular groove 10 in the outside week portion of detecting head 101, slotted collar 11 be removably inserted with annular groove 10, by bullet
Spring 9 is sheathed on thermocouple 1 and between slotted collar 11 and fixture inwall.The natural extended length of spring 9 is more than opening
The distance between jump ring and fixture inwall.Slotted collar 11 moves for limited spring 9, and the one end of spring 9 withstands on slotted collar 11
On, the other end withstands on semicircular ring inwall.By the pressure of spring 9, make the head of thermocouple 1 detecting head 101 be adjacent to all the time it is to be measured
The outer wall of pipeline 3, the factors such as the profile variation of pipe under test 3, vibration are avoided to cause detecting head 101 to depart from the outer wall of pipe under test 3, so as to
Influence measurement accuracy.When some thermocouple 1 fails, slotted collar 11 can be removed, extract the thermocouple 1 of failure out progress more
Change.
The outside wall surface of annular holder 2 has the concaveconvex structure 12 for being loaded with recognizable information using laser engraving.Preferably, should
Concaveconvex structure 12 is two-dimension code structure, to record the information such as the installation site of thermocouple 1, set-up time, is easy to subsequently track
And maintenance.
The temperature of the outer wall of temperature measuring equipment energy direct detection amount pipe under test 3 of the present utility model, and can be according to pipe under test 3
The change real-time and precise of outer wall measures, and detecting head 101 all the time closely touch with the outer wall of pipe under test 3 by patch in measurement process；
It can be individually replaced, change convenient and swift when single thermocouple 1 breaks down.
For above-described embodiment only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, the scope of protection of the utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (10)
1. pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring, it is characterised in that：Including being sheathed on pipe under test outer circumferential
Annular holder, at least one set of temperature measurement component for being arranged on the annular holder, the temperature measurement component includes having detecting head
Thermocouple, between the inner side perisporium of the annular holder and the outer perimeter wall of the pipe under test have be used for house the spy
The receiving space of gauge head, the annular holder are provided with the mounting hole for being used for installing the thermocouple, and the detecting head passes through institute
State mounting hole and be affixed in the receiving space and with the outer side surface of the pipe under test tactile.
2. pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring according to claim 1, it is characterised in that：The thermoelectricity
Even be provided between the annular holder drives the thermocouple to be radially orientated described treat along the pipe under test to provide
The elastic component of elastic force needed for the motion of test tube pipeline outer wall.
3. pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring according to claim 2, it is characterised in that：The elasticity
Part is spring, and the detecting head is provided with locating part, the spring housing on the thermocouple and positioned at the locating part with
Between the inwall of the annular holder.
4. pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring according to claim 3, it is characterised in that：The detection
The outside week portion of head offers annular groove, and the locating part is the slotted collar being removably inserted in the annular groove.
5. a kind of heat fatigue monitoring pipeline outer wall temperature measuring equipment according to any one of Claims 1-4, its feature exist
In：The thermocouple includes connector, thermocouple body and the described detecting head axially arranged successively along itself, the thermometric
Component also includes being used to be set in the protective cover for thermocouple on the outside of the thermocouple body, and the protective cover for thermocouple is ordinatedly worn
It is located in the mounting hole and stretches into the receiving space, the detecting head is located at the axial direction one of the protective cover for thermocouple
Side.
6. pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring according to claim 5, it is characterised in that：The thermoelectricity
Even protective case has the installation shaft part that installation is engaged with the mounting hole, the limit shaft positioned at the installation shaft part outboard shafts end
Section, the temperature measurement component also include being set in the installation shaft part and positioned at the limit shaft section and the annular holder lateral wall
Adjusting washer between face.
7. a kind of heat fatigue monitoring pipeline outer wall temperature measuring equipment according to any one of claim 1 or 2, its feature exist
In：The annular holder includes being hinged and symmetrically arranged two arc rings, and the openends of the two arc rings passes through tight
Gu component is connected, the hook clamping joint that the fastening assembly dismounts for ease of the two arc rings.
8. pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring according to claim 1, it is characterised in that：The annular
Multiple described mounting holes are offered on fixture circumferentially spacedly, are provided with the mounting hole described in wherein at least one described
Temperature measurement component.
9. pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring according to claim 1 or 2, it is characterised in that：It is described
Annular holder is circumferentially spaced to be provided with multiple supporting studs, and the free end of the supporting studs is revolved from the outer wall of the annular holder
Enter and be supported on the outside wall surface of the pipe under test.
10. pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring according to claim 1, it is characterised in that：The ring
The outside wall surface of clamp is carved with the concaveconvex structure for being loaded with recognizable information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721253412.1U CN207197693U (en) | 2017-09-27 | 2017-09-27 | Pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721253412.1U CN207197693U (en) | 2017-09-27 | 2017-09-27 | Pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring |
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| CN207197693U true CN207197693U (en) | 2018-04-06 |
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| CN201721253412.1U Active CN207197693U (en) | 2017-09-27 | 2017-09-27 | Pipeline outer wall temperature measuring equipment is used in a kind of heat fatigue monitoring |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695006A (en) * | 2018-05-22 | 2018-10-23 | 广东核电合营有限公司 | The loading well temperature-controlled cooling system of million kilowatt nuclear power factory Spent Fuel Pool |
| CN109443577A (en) * | 2018-11-15 | 2019-03-08 | 中国工程物理研究院材料研究所 | A kind of metal alternating temperature process temperature measuring equipment and its application method |
| CN109599195A (en) * | 2018-11-28 | 2019-04-09 | 苏州热工研究院有限公司 | Monitoring system and monitoring method for primary Ioops cooling temperature Measurement channel |
| CN110457828A (en) * | 2019-08-15 | 2019-11-15 | 苏州热工研究院有限公司 | A kind of tired sensitive position screening technique of environment promotion for M310 nuclear power unit |
| CN113566998A (en) * | 2021-09-23 | 2021-10-29 | 南通东成智能化设备安装有限公司 | Nondestructive inner wall detection device for stainless steel pipe |
| CN114165665A (en) * | 2021-12-10 | 2022-03-11 | 江苏耀坤液压股份有限公司 | Dual-output-head hydraulic oil pipe with temperature monitoring assembly |
| CN115165131A (en) * | 2022-06-24 | 2022-10-11 | 山东大学 | GIS isolator contact temperature monitoring device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695006A (en) * | 2018-05-22 | 2018-10-23 | 广东核电合营有限公司 | The loading well temperature-controlled cooling system of million kilowatt nuclear power factory Spent Fuel Pool |
| CN108695006B (en) * | 2018-05-22 | 2020-06-05 | 广东核电合营有限公司 | Loading well temperature control cooling system of spent fuel pool of million kilowatt nuclear power plant |
| CN109443577A (en) * | 2018-11-15 | 2019-03-08 | 中国工程物理研究院材料研究所 | A kind of metal alternating temperature process temperature measuring equipment and its application method |
| CN109599195B (en) * | 2018-11-28 | 2021-03-02 | 苏州热工研究院有限公司 | Monitoring system and monitoring method for loop cooling temperature measurement channel |
| CN109599195A (en) * | 2018-11-28 | 2019-04-09 | 苏州热工研究院有限公司 | Monitoring system and monitoring method for primary Ioops cooling temperature Measurement channel |
| CN110457828B (en) * | 2019-08-15 | 2022-12-27 | 苏州热工研究院有限公司 | Environment-promoted fatigue-sensitive position screening method for M310 nuclear power unit |
| CN110457828A (en) * | 2019-08-15 | 2019-11-15 | 苏州热工研究院有限公司 | A kind of tired sensitive position screening technique of environment promotion for M310 nuclear power unit |
| CN113566998A (en) * | 2021-09-23 | 2021-10-29 | 南通东成智能化设备安装有限公司 | Nondestructive inner wall detection device for stainless steel pipe |
| CN114165665A (en) * | 2021-12-10 | 2022-03-11 | 江苏耀坤液压股份有限公司 | Dual-output-head hydraulic oil pipe with temperature monitoring assembly |
| CN114165665B (en) * | 2021-12-10 | 2023-12-12 | 江苏耀坤液压股份有限公司 | Double-output-head hydraulic oil pipe with temperature monitoring assembly |
| CN115165131A (en) * | 2022-06-24 | 2022-10-11 | 山东大学 | GIS isolator contact temperature monitoring device |
| CN115901020A (en) * | 2023-01-09 | 2023-04-04 | 江苏龙英管道新材料有限公司 | Heat-insulation pipeline heat dissipation measuring device and measuring method |
| CN115901020B (en) * | 2023-01-09 | 2023-10-20 | 江苏龙英管道新材料有限公司 | Heat dissipation measuring device and measuring method for heat preservation pipeline |
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