CN106247966A - A kind of strain gauge means being applicable to maritime environment and strain measurement system thereof - Google Patents

A kind of strain gauge means being applicable to maritime environment and strain measurement system thereof Download PDF

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Publication number
CN106247966A
CN106247966A CN201610631530.5A CN201610631530A CN106247966A CN 106247966 A CN106247966 A CN 106247966A CN 201610631530 A CN201610631530 A CN 201610631530A CN 106247966 A CN106247966 A CN 106247966A
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CN
China
Prior art keywords
strain
applicable
housing
gauge means
strain gauge
Prior art date
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Pending
Application number
CN201610631530.5A
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Chinese (zh)
Inventor
王晓波
闫宏生
陈永訢
朱绍华
孟祥伟
周杨
刘凯
王国军
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.)
Tianjin University
Offshore Oil Engineering Co Ltd
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Tianjin University
Offshore Oil Engineering Co Ltd
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Publication date
Application filed by Tianjin University, Offshore Oil Engineering Co Ltd filed Critical Tianjin University
Priority to CN201610631530.5A priority Critical patent/CN106247966A/en
Publication of CN106247966A publication Critical patent/CN106247966A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/16Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The invention discloses a kind of strain gauge means being applicable to maritime environment, including the strain transducer being arranged on stinger, the outside of described strain transducer is provided with the watertight protecting crust being tightly connected with described stinger, the lateral wall of described watertight protecting crust is provided with deep water air plug, the side of described deep water air plug is connected with described strain transducer, and opposite side is connected with anti-sea water cable;The invention also discloses a kind of strain measurement system being applicable to maritime environment, including rosette, signal acquiring system, the first optic fiber converter, the second optic fiber converter, industrial computer, and above-mentioned strain gauge means.The present invention, on the basis of taking into full account operation on the sea bad environments, has considered the requirement of shelter of strain transducer, devises special preventer, meets marine long-term operation and uses.

Description

A kind of strain gauge means being applicable to maritime environment and strain measurement system thereof
Technical field
The present invention relates to strain measurement, survey particularly to a kind of strain gauge means being applicable to maritime environment and strain thereof Amount system.
Background technology
The monitoring in real time of offshore structures has particularly important meaning for the safety ensureing works.Currently mainly Method is to use strain acquirement to measure equipment to measure in real time.Pole is had been obtained in such as the land-based structure such as bridge, dam For being widely applied.But the application of the test on works at sea is then greatly limited.It main reason is that: marine Environmental condition is extremely severe, as structure be kept in motion, sea water has stronger corrosivity, the temperature difference is big, and strain measurement Device is for using environmental requirement the highest, and therefore conventional scheme is difficult to meet.
Current existing strain gauge means the most not can reach the requirement of engineering waterproofing.Can even if some product is known as In case sea water, but its water-proofing time maximum only 200 hours.And the operation measurement cycle of offshore structures is generally some months, Therefore use requirement cannot be met.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that one is applicable to maritime environment, meet sea long The strain gauge means of phase operation use and strain measurement system thereof.
The present invention is achieved by the following technical solutions.
A kind of strain gauge means being applicable to maritime environment, including the strain transducer being arranged on stinger, described The outside of strain transducer is provided with the watertight protecting crust being tightly connected with described stinger, the lateral wall of described watertight protecting crust Being provided with deep water air plug, described deep water air plug side is connected with described strain transducer, and opposite side is connected with anti-sea water cable Connect.
Described watertight protecting crust includes that five-way shell, the bottom of described housing are welded and fixed with described stinger, described shell The end face of body arranges the encapsulating mouth of filling gel in oriented described housing.
Described watertight protecting crust includes four sides housing, and is arranged on the cover plate of housing end face, and the top of described housing is arranged Having outside flanging, described cover plate is connected the fixing company realizing described cover plate and described housing by bolt with described flanging Connect, between described cover plate and described housing, be provided with pad;The bottom of described housing is provided with outside semicircle pressing plate;Described It is equipped with in pressing plate for connecting described housing and the stud of described stinger, is provided with between described housing and described stinger Pad.
Described watertight protecting crust is processed by steel.
Described pad is made up of rubber.
A kind of strain measurement system being applicable to maritime environment, including rosette, signal acquiring system, the first optical fiber conversion Device, the second optic fiber converter, and industrial computer, described strain measurement system also includes the above-mentioned strain measurement being applicable to maritime environment Device;It is connected by described anti-sea water cable between described strain gauge means with described rosette, described rosette and institute State and be connected by holding wire between signal acquiring system, logical between described signal acquiring system and described first optic fiber converter Cross netting twine to be connected, be connected by optical fiber between described first optic fiber converter and described second optic fiber converter, described It is connected by netting twine between two optic fiber converters and described industrial computer.
Described rosette, described signal acquiring system and described first optic fiber converter are arranged in water proof and dust proof cabinet, Described water proof and dust proof cabinet is provided with the water cooling plant for heat radiation.
The invention has the beneficial effects as follows: strain gauge means of the present invention and strain measurement system thereof, at sea structure is real-time Belong to first in monitoring, on the basis of taking into full account operation on the sea bad environments, considered the protection of strain transducer Requirement, devises special preventer, meet the waterproof requirement of marine long-term operation strain transducer, it is to avoid due to should Become the inconvenience that sensor water-proof inefficacy is caused.
Accompanying drawing explanation
Fig. 1: strain gauge means embodiment one structural representation of the present invention;
Fig. 2: strain gauge means embodiment two watertight protecting crust structural representation of the present invention;
Fig. 3: the cross section structure schematic diagram of strain gauge means embodiment two watertight protecting crust of the present invention;
Fig. 4: strain measurement system structural representation of the present invention.
Accompanying drawing marks: 1, strain gauge means;2, anti-sea water cable;3, rosette;4, holding wire;5, signals collecting system System;6, water proof and dust proof cabinet;7, water cooling plant;8, netting twine;9, the first optic fiber converter;10, optical fiber;11, the second optical fiber conversion Device;12, netting twine;13, industrial computer;14, stinger;15, strain transducer;16, deep water air plug;17, housing;18, encapsulating mouth; 19;Housing;20, cover plate;21, bolt;22, pad;23, pressing plate;24, stud;25, pad.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1 to Fig. 3, a kind of strain gauge means 1 being applicable to maritime environment, including being arranged on stinger 14 On strain transducer 15, the outside of described strain transducer 15 be provided be tightly connected with described stinger 14 watertight protection Shell, the lateral wall of described watertight protecting crust is provided with deep water air plug 16, described deep water air plug 16 side and described strain transducer 15 are connected, and opposite side is connected with anti-sea water cable 2, in order to connect described strain transducer 15 and anti-sea water cable 2, it is achieved Quickly connect.
In the present invention, described watertight protecting crust uses high-grade stainless steel to process, and has two kinds of structures:
Embodiment one, as it is shown in figure 1, described watertight protecting crust includes five-way shell 17, the bottom of described housing 17 and institute State stinger 14 to be welded and fixed, last layer silica gel should be repasted at weld during welding, for anti-seawater corrosion;Described housing 17 End face is provided with encapsulating mouth 18, by described encapsulating mouth 18, irrigates anti-sea water silica gel close to reach secondary in described housing 17 Seal and protect the effect of described strain transducer 15.
The installation method of the strain gauge means 1 according to embodiment one is as follows:
1) when stinger 14 is carried out strain measurement, the weldering of strain transducer 15 in the welding of stinger 14 select location Connect block, the most directly strain transducer 15 is arranged on welding block;
2) output line of strain transducer 15 is connected to deep water air plug 16 (such as, ZS20-4TK/ZJ moldeed depth water boat Insert) socket on;
3) housing 17 is directly welded on stinger 14, after waiting weld cooling, first carefully drips several at solder joint edge Binding agent, binding agent will penetrate into solder joint periphery space, be coated with the water-proof silica-gel of one layer of protection the most again in weld zone, prevent welding Place, by seawater corrosion, fills silica gel by encapsulating mouth 18 the most again in protecting crust.After glue curing, then encapsulating mouth plug of screwing on, Also to weld after the encapsulating mouth plug screwed on, welding cooling after, at solder joint edge too drip several binding agents, the most again It is coated with the water-proof silica-gel of one layer of protection in weld zone, prevents weld by seawater corrosion.
Embodiment two, as shown in Figures 2 and 3, described watertight protecting crust includes four sides housing 19, and is arranged on housing 19 and pushes up The cover plate 20 in face, the top of described housing 19 is provided with outside flanging, and described cover plate 20 is by bolt 21 with described flanging even Connect to realize the fixing connection of described cover plate 20 and described housing 19, between described cover plate 20 and described housing 19, be provided with rubber Pad 22;The bottom of described housing 19 is provided with outside semicircle pressing plate 23;It is equipped with for connecting in described pressing plate 23 State the stud 24 of housing 19 and described stinger 14, between described housing 19 and described stinger 14, be provided with rubber sheet gasket 25.
As shown in Figure 4, a kind of strain measurement system being applicable to maritime environment, including described strain gauge means 1, with And rosette 3, signal acquiring system 5, the first optic fiber converter 9, the second optic fiber converter 11, and industrial computer 13;Described strain It is connected by described anti-sea water cable 2 between measurement apparatus 1 with described rosette 3, during use, can be according to physical length demand Select multistage anti-sea water cable 2, be connected with each other to meet practical operation need by deep water air plug 16 between every section of anti-sea water cable 2 Ask;It is connected by holding wire 4 between described rosette 3 with described signal acquiring system 5, described signal acquiring system 5 and institute State and be connected by netting twine 8 between the first optic fiber converter 9, described first optic fiber converter 9 and described second optic fiber converter It is connected by optical fiber 10 between 11, is connected by netting twine 12 between described second optic fiber converter 11 and described industrial computer 13 Connect.
Wherein, described rosette 3, described signal acquiring system 5 and described first optic fiber converter 9 are arranged on water proof and dust proof In cabinet 6, described water proof and dust proof cabinet 6 is provided with the water cooling plant 7 for heat radiation.
Additionally, be provided with monitoring management and alarm device in described industrial computer 13, carry out calculating according to the data gathered and divide Analysis, and the functions such as data storage, playback, early warning can be carried out according to concrete monitoring requirement.

Claims (7)

1. it is applicable to a strain gauge means for maritime environment, including the strain transducer being arranged on stinger, its feature Being, the outside of described strain transducer is provided with the watertight protecting crust being tightly connected with described stinger, and described watertight protects The lateral wall of shell is provided with deep water air plug, and the side of described deep water air plug is connected with described strain transducer, and opposite side is with anti- Sea water cable is connected.
The strain gauge means being applicable to maritime environment the most according to claim 1, it is characterised in that described watertight protects Shell includes that five-way shell, the bottom of described housing are welded and fixed with described stinger, and the end face of described housing arranges oriented described The encapsulating mouth of filling gel in housing.
The strain gauge means being applicable to maritime environment the most according to claim 1, it is characterised in that described watertight protects Shell includes four sides housing, and is arranged on the cover plate of housing end face, and the top of described housing is provided with outside flanging, described cover plate Be connected with described flanging by bolt the fixing connection realizing described cover plate and described housing, described cover plate and described housing it Between be provided with pad;The bottom of described housing is provided with outside semicircle pressing plate, is equipped with for connecting in described pressing plate State housing and the stud of described stinger, between described housing and described stinger, be provided with pad.
4. according to the strain gauge means being applicable to maritime environment described in claims 1 to 3 any one, it is characterised in that Described watertight protecting crust is processed by steel.
The strain gauge means being applicable to maritime environment the most according to claim 3, it is characterised in that described pad is by rubber Glue is made.
6. it is applicable to a strain measurement system for maritime environment, including rosette, signal acquiring system, the first optical fiber conversion Device, the second optic fiber converter, and industrial computer, it is characterised in that described strain measurement system also includes according to claim 1 to 5 According to any one of the strain gauge means being applicable to maritime environment;Lead between described strain gauge means and described rosette Cross described anti-sea water cable to be connected, be connected by holding wire between described rosette with described signal acquiring system, described It is connected by netting twine between signal acquiring system with described first optic fiber converter, described first optic fiber converter and described It is connected by optical fiber between two optic fiber converters, is connected by netting twine between described second optic fiber converter and described industrial computer Connect.
The strain measurement system being applicable to maritime environment the most according to claim 6, it is characterised in that described rosette, Described signal acquiring system and described first optic fiber converter are arranged in water proof and dust proof cabinet, and described water proof and dust proof cabinet is arranged There is the water cooling plant for heat radiation.
CN201610631530.5A 2016-08-02 2016-08-02 A kind of strain gauge means being applicable to maritime environment and strain measurement system thereof Pending CN106247966A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864641A (en) * 2019-11-19 2020-03-06 天津大学 Protection device of fiber grating strain sensor in splash zone of ocean platform
CN113727552A (en) * 2021-08-13 2021-11-30 南京开关厂有限公司 Anti-condensation control device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2906610Y (en) * 2006-04-17 2007-05-30 刘俊松 Waterproof gas permeable gas sensor device
CN203011415U (en) * 2013-01-25 2013-06-19 中山大学 Monitoring device suitable for using underground or under water
CN104330046A (en) * 2014-11-13 2015-02-04 中国船舶重工集团公司第七0四研究所 Fiber bragg grating torque sensor structure applicable to underwater environment
CN204287227U (en) * 2014-12-09 2015-04-22 天津简仪科技有限公司 A kind of optical fiber acceleration transducer structure for Structure stress monitoring
CN105222936A (en) * 2015-11-02 2016-01-06 天津师范大学 For long based stress sensor and the using method of Ship Structure
CN205156886U (en) * 2015-07-29 2016-04-13 北京市燃气集团有限责任公司 Surface acoustic wave strain sensor safety cover
CN205861004U (en) * 2016-08-02 2017-01-04 海洋石油工程股份有限公司 A kind of strain gauge means being applicable to maritime environment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2906610Y (en) * 2006-04-17 2007-05-30 刘俊松 Waterproof gas permeable gas sensor device
CN203011415U (en) * 2013-01-25 2013-06-19 中山大学 Monitoring device suitable for using underground or under water
CN104330046A (en) * 2014-11-13 2015-02-04 中国船舶重工集团公司第七0四研究所 Fiber bragg grating torque sensor structure applicable to underwater environment
CN204287227U (en) * 2014-12-09 2015-04-22 天津简仪科技有限公司 A kind of optical fiber acceleration transducer structure for Structure stress monitoring
CN205156886U (en) * 2015-07-29 2016-04-13 北京市燃气集团有限责任公司 Surface acoustic wave strain sensor safety cover
CN105222936A (en) * 2015-11-02 2016-01-06 天津师范大学 For long based stress sensor and the using method of Ship Structure
CN205861004U (en) * 2016-08-02 2017-01-04 海洋石油工程股份有限公司 A kind of strain gauge means being applicable to maritime environment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864641A (en) * 2019-11-19 2020-03-06 天津大学 Protection device of fiber grating strain sensor in splash zone of ocean platform
CN113727552A (en) * 2021-08-13 2021-11-30 南京开关厂有限公司 Anti-condensation control device

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