CN209589902U - A kind of infrared thermal imagery method concrete crack detector based on electromagnetic induction heating - Google Patents
A kind of infrared thermal imagery method concrete crack detector based on electromagnetic induction heating Download PDFInfo
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- CN209589902U CN209589902U CN201920150542.5U CN201920150542U CN209589902U CN 209589902 U CN209589902 U CN 209589902U CN 201920150542 U CN201920150542 U CN 201920150542U CN 209589902 U CN209589902 U CN 209589902U
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- induction heating
- electromagnetic induction
- thermal imagery
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Abstract
The infrared thermal imagery method concrete crack detector based on electromagnetic induction heating that the utility model discloses a kind of, including adjacent reinforced concrete bodies, electromagnetic induction heating instrument, thermal infrared imager, computer.The utility model detects inside concrete crack based on the infrared thermal imagery method of electromagnetic induction heating, high-frequency electromagnetic induction heating instrument is selected to heat concrete sample inside reinforcing bar, pass through the temperature data of thermal infrared imager acquisition and the surface of test piece of induction heating instrument face, it is easy to operate, temperature-controllable, heating effect are good；Pass through computer disposal, the case where obtaining the profiling temperatures on test block surface, reconnoitring there are crack inside test block and changed over time there is no the corresponding test block surface temperature in place in crack, it is analyzed by comparing result, thus come the size for positioning the position in crack, judging crack.
Description
Technical field
The utility model belongs to distress in concrete detection field, relates more specifically to a kind of based on the red of electromagnetic induction heating
Outer thermal imagery method concrete crack detector.
Background technique
Building trade is the mainstay of Chinese national economy, is one of leading force of economic development, as China is built
The continuous development of industry is built, the quality problems of building are just at our questions of common concern.In building construction technology, reinforcing bar
The prevention of distress in concrete and control are a problems, at the same it there are in construction very extensively again.By regular
Reinforce the detection to concrete-bridge, building structure crack, assessment in maintenance and detection process and administer in time, can be avoided and split
Seam generates large-scale destroy to bridge, building structure.
There are supercritical ultrasonics technology, acoustic-emission, impact in the method that distress in concrete field of non destructive testing generallys use both at home and abroad
Echo method.These methods are more in distress in concrete detection application, but there is also some disadvantages and one-sidedness.These methods are basic
Although all determining to can be used for detecting the distress in concrete in all kinds of engineerings using single-point detection, it is particularly suitable for single-sided structure,
It is not high to detect depth, accuracy aspect, can not comprehensively show the internal flaw of concrete structure, it is difficult to meet engineering development need
It asks.
More novel at present, the faster method of development is that have non-connect using crack in infrared thermal imagery method detection concrete
Touching, a wide range of, quick many detection advantages such as accurate, it is general using solar radiation as heat source, also have and utilize far infrared stone
English heating plate is as heat source.But since concrete is weak heat conductor, so that red using the distress in concrete based on radiant heat source
There are limitations for outer detection method, especially for the crack of deeper.
Utility model content
To solve the above problems, the utility model, which is based on electromagnetic inductive heating principle, designs one kind based on electromagnetic induction heating
Infrared thermal imagery method concrete crack detector, have the advantages that non-contact, a wide range of, quickly many detections such as accurate；It will be infrared
Thermal imaging method is applied in the detection of cracks in reinforced concrete, can be navigated to position existing for crack and be judged the big of crack
It is small；Replace traditional solar irradiation or the heating of quartz heating plate by electromagnetic induction heating, heat conduction efficiency is high, can examine reinforcing bar survey
Inside concrete crack, detection effect are good.
The utility model is in view of the above problems, design a kind of infrared thermal imagery method coagulation soil cracking based on electromagnetic induction heating
Stitch detector, including adjacent reinforced concrete bodies, electromagnetic induction heating instrument, thermal infrared imager, computer composition.The electromagnetic induction
Heating instrument heats adjacent reinforced concrete bodies surface test region；The thermal infrared imager surveys adjacent reinforced concrete bodies
Examination regional temperature field variation is detected；The infrared thermal imagery instrument signal output end is connected to a computer, the computer
Change of temperature field signal is changed into picture signal and digital signal.
Preferably, the electromagnetic induction heating instrument is by high-frequency electromagnetic generator, electromagnetic induction coil, cooling recirculation system group
At；The input power of the electromagnetic induction heating instrument is 15KW；There is frequency adjusting knob on the high-frequency electromagnetic generator, it is described
Frequency adjustable extent is 30KHZ~100KHZ；Heat exchange circulation circuit is provided in the high-frequency electromagnetic generator；The electricity
Magnetic induction coil is made of copper；
Preferably, the cooling recirculation system is made of drawing-in type immersible pump, water storage box；The drawing-in type immersible pump uses
Recirculated water is as cooling circulating medium, the drawing-in type immersible pump and the heat exchange circulation circuit in the high-frequency electromagnetic generator
It is connected, drawing-in type immersible pump, which pressurizes to recirculated water, guarantees recirculated water to the cooling effect of high-frequency electromagnetic generator.
Preferably, the thermal infrared imager is arranged in above the area to be tested on adjacent reinforced concrete bodies surface, infrared heat
As instrument may be height adjusted by A-frame support；The area to be tested on adjacent reinforced concrete bodies surface is located at electromagnetic coil heat
In the sphere of action of source.
Preferably, the computer installation has infrared thermal imagery information processing system, and the information processing system can be to institute
The temperature signal in collecting test region pre-processed, analyzed, the calibration of affecting parameters, testing result image show, history
The query function of parameter.
Preferably, a kind of infrared thermal imagery method distress in concrete detection based on electromagnetic induction heating described in the utility model
Specific operation process of the instrument in detection adjacent reinforced concrete bodies crack is as follows:
1. selecting adjacent reinforced concrete bodies Crack Detection region；
2. temperature, humidity environment parameter is arranged in installation and debugging thermal infrared imager；
3. starting cooling recirculation system, pre- cooling is carried out to electromagnetic induction heating instrument equipment and guarantees that equipment is in best effort
Temperature；
4. adjacent reinforced concrete bodies are placed in below electromagnetic induction coil, the electromagnetic induction coil is as far as possible close to reinforcing bar
Concrete main body surface；Its electromagnetic induction coil center face adjacent reinforced concrete bodies Surface testing regional center position；
5. starting high-frequency induction heating instrument, electromagnetic induction coil carries out induction heating to adjacent reinforced concrete bodies surface, together
Shi Qidong thermal infrared imager acquires surface of test piece temperature data, and whether observation temperature change is abnormal at any time；
6. closing high-frequency induction heating instrument when adjacent reinforced concrete bodies hot face temperature reaches 30 DEG C or so and stopping adding
Heat, while coil is removed, thermal infrared imager stops recording after surface of test piece temperature is reduced to room temperature；
7. computer testing interpretation of result and image procossing.
The infrared thermal imagery method detection inside concrete having the beneficial effect that based on electromagnetic induction heating of the utility model is split
Seam selects high-frequency electromagnetic induction heating instrument to heat armored concrete inside reinforcing bar, is acquired and is felt by thermal infrared imager
Answer the temperature data of the surface of test piece of heating instrument face, easy to operate, temperature-controllable, heating effect is good；By computer disposal,
Obtain reinforced concrete surface profiling temperatures, prospecting test block inside there are crack and there is no crack place it is right
The case where test block surface temperature answered changes over time, is analyzed by comparing result, thus come position the position in crack,
Judge the size in crack.
Detailed description of the invention
Fig. 1 is the workflow of the utility model.
Fig. 2 is the structural schematic diagram of the utility model.
In figure, 1- adjacent reinforced concrete bodies, 2- high-frequency electromagnetic generator, 3- electromagnetic induction coil, 4- drawing-in type immersible pump,
5- water storage box, 6- thermal infrared imager, 7- computer.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
As shown, a kind of infrared thermal imagery method concrete crack detector based on electromagnetic induction heating, including reinforcing bar are mixed
Solidifying soil main body (1), electromagnetic induction heating instrument, thermal infrared imager (6), computer (7) composition.The electromagnetic induction heating instrument is to steel
It is heated in reinforced concrete main body (1) surface test region；The thermal infrared imager (6) surveys adjacent reinforced concrete bodies (1)
Examination regional temperature field variation is detected；Thermal infrared imager (6) the device signal output end is connected with computer (7), described
Change of temperature field signal is changed into picture signal and digital signal by computer (7).
Preferably, the electromagnetic induction heating instrument is by high-frequency electromagnetic generator (2), electromagnetic induction coil (3), cooling cycle
System composition；The input power of the electromagnetic induction heating instrument is 15KW；There is frequency adjusting on the high-frequency electromagnetic generator (2)
Knob, the frequency adjustable extent are 30KHZ~100KHZ；Heat exchange is provided in the high-frequency electromagnetic generator (2) to follow
Loop back path；The electromagnetic induction coil (3) is made of copper；
Preferably, the cooling recirculation system is made of drawing-in type immersible pump (4), water storage box (5)；The drawing-in type diving
Pump (4) uses recirculated water as cooling circulating medium, and the drawing-in type immersible pump (4) and the high-frequency electromagnetic generator (2) are interior
Heat exchange circulation circuit be connected, drawing-in type immersible pump (4) to recirculated water pressurize guarantee recirculated water to high-frequency electromagnetic generator (2)
Cooling effect.
Preferably, the thermal infrared imager (6) is arranged above the area to be tested on adjacent reinforced concrete bodies (1) surface,
Thermal infrared imager (6) may be height adjusted by A-frame support；Adjacent reinforced concrete bodies (1) are located at electromagnetic coil heat source work
With in range, detection zone face adjacent reinforced concrete bodies (1) surface of thermal infrared imager (6).
Preferably, the computer (7) is provided with infrared thermal imagery information processing system, and the information processing system can be right
The temperature signal in institute's collecting test region pre-processed, analyzed, the calibration of affecting parameters, testing result image show, go through
The query function of history parameter.
Preferably, a kind of infrared thermal imagery method distress in concrete detection based on electromagnetic induction heating described in the utility model
Specific operation process of the instrument in detection adjacent reinforced concrete bodies (1) crack is as follows:
1. selecting adjacent reinforced concrete bodies (1) Crack Detection region；
2. temperature, humidity environment parameter is arranged in installation and debugging thermal infrared imager (6)；
3. starting cooling recirculation system, pre- cooling is carried out to electromagnetic induction heating instrument equipment and guarantees that equipment is in best effort
Temperature；
4. adjacent reinforced concrete bodies (1) are placed in below electromagnetic induction coil (3), the electromagnetic induction coil (3) is to the greatest extent
It measures close to adjacent reinforced concrete bodies (1) surface；Its described electromagnetic induction coil (3) center face adjacent reinforced concrete bodies (1) table
Face detection zone center；
5. starting high-frequency induction heating instrument, electromagnetic induction coil (3) carries out induction to adjacent reinforced concrete bodies (1) surface and adds
Heat, while starting thermal infrared imager (6) acquisition surface of test piece temperature data, and whether observation temperature change is abnormal at any time；
6. closing high-frequency induction heating instrument when adjacent reinforced concrete bodies (1) hot face temperature reaches 30 DEG C or so and stopping
It only heats, while removing coil, thermal infrared imager (6) stops recording after surface of test piece temperature is reduced to room temperature；
7. computer (7) test result analysis and image procossing.
Although those skilled in the art should manage the foregoing describe specific embodiment of the present utility model
Solution, these are merely examples, various changes or modifications can be made to present embodiment, without departing from the original of the utility model
Reason and essence, the protection scope of the utility model are only limited by the claims that follow.
Claims (5)
1. a kind of infrared thermal imagery method concrete crack detector based on electromagnetic induction heating, it is characterised in that: mixed including reinforcing bar
Solidifying soil main body, electromagnetic induction heating instrument, thermal infrared imager, computer；The electromagnetic induction heating instrument is to adjacent reinforced concrete bodies
It is heated in surface test region；The thermal infrared imager examines adjacent reinforced concrete bodies test zone change of temperature field
It surveys；The infrared thermal imagery instrument signal output end is connected to a computer, and change of temperature field signal is changed by the computer
Picture signal and digital signal.
2. a kind of infrared thermal imagery method concrete crack detector based on electromagnetic induction heating according to claim 1,
Be characterized in that: the electromagnetic induction heating instrument is made of high-frequency electromagnetic generator, electromagnetic induction coil, cooling recirculation system；Institute
The input power for stating electromagnetic induction heating instrument is 15KW；There are frequency adjusting knob, the frequency on the high-frequency electromagnetic generator
Adjustable extent is 30KHZ~100KHZ；Heat exchange circulation circuit is provided in the high-frequency electromagnetic generator；The electromagnetism sense
Coil is answered to be made of copper.
3. a kind of infrared thermal imagery method concrete crack detector based on electromagnetic induction heating according to claim 2,
Be characterized in that: the cooling recirculation system is made of drawing-in type immersible pump, water storage box；The drawing-in type immersible pump uses recirculated water
As cooling circulating medium, the drawing-in type immersible pump is connected with the heat exchange circulation circuit in the high-frequency electromagnetic generator,
Drawing-in type immersible pump, which pressurizes to recirculated water, guarantees recirculated water to the cooling effect of high-frequency electromagnetic generator.
4. a kind of infrared thermal imagery method concrete crack detector based on electromagnetic induction heating according to claim 1,
Be characterized in that: the thermal infrared imager is arranged in above the area to be tested on adjacent reinforced concrete bodies surface, thermal infrared imager by
A-frame support may be height adjusted；The area to be tested of adjacent reinforced concrete bodies is located at electromagnetic coil Source range
It is interior.
5. a kind of infrared thermal imagery method concrete crack detector based on electromagnetic induction heating according to claim 1,
Be characterized in that: the computer installation has infrared thermal imagery information processing system, and the information processing system can be surveyed to acquiring
The temperature signal in examination region pre-processed, analyzed, the calibration of affecting parameters, testing result image show, history parameters
Query function.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111918433A (en) * | 2020-06-13 | 2020-11-10 | 宁波润轴汽配有限公司 | Induction heating equipment control method and system and induction heating equipment |
| CN113189187A (en) * | 2021-03-29 | 2021-07-30 | 浙江大学 | Electrochemical sensor applied to chromium ion detection |
| CN113433168A (en) * | 2021-06-30 | 2021-09-24 | 浙江农林大学 | Device and method for identifying adhesive defects of steel-bonded reinforced concrete structure based on eddy thermal image |
| CN113532511A (en) * | 2021-06-01 | 2021-10-22 | 中铁一局集团建筑安装工程有限公司 | Deformation monitoring and early warning method for super-large-section high-formwork and large-volume concrete structure |
| CN116989855A (en) * | 2023-09-27 | 2023-11-03 | 国网江苏省电力有限公司电力科学研究院 | Gas state multi-parameter detection sensor and self-calibration method thereof |
-
2019
- 2019-01-29 CN CN201920150542.5U patent/CN209589902U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111918433A (en) * | 2020-06-13 | 2020-11-10 | 宁波润轴汽配有限公司 | Induction heating equipment control method and system and induction heating equipment |
| CN111918433B (en) * | 2020-06-13 | 2022-05-20 | 宁波润轴科技有限公司 | Induction heating equipment control method and system and induction heating equipment |
| CN113189187A (en) * | 2021-03-29 | 2021-07-30 | 浙江大学 | Electrochemical sensor applied to chromium ion detection |
| CN113189187B (en) * | 2021-03-29 | 2023-04-07 | 浙江大学 | Electrochemical sensor applied to chromium ion detection |
| CN113532511A (en) * | 2021-06-01 | 2021-10-22 | 中铁一局集团建筑安装工程有限公司 | Deformation monitoring and early warning method for super-large-section high-formwork and large-volume concrete structure |
| CN113532511B (en) * | 2021-06-01 | 2022-08-09 | 中铁一局集团建筑安装工程有限公司 | Deformation monitoring and early warning method for super-large-section high-formwork and large-volume concrete structure |
| CN113433168A (en) * | 2021-06-30 | 2021-09-24 | 浙江农林大学 | Device and method for identifying adhesive defects of steel-bonded reinforced concrete structure based on eddy thermal image |
| CN113433168B (en) * | 2021-06-30 | 2022-08-05 | 浙江农林大学 | Device and method for identifying adhesive defects of adhesive steel reinforced structure based on eddy current thermal imagery |
| CN116989855A (en) * | 2023-09-27 | 2023-11-03 | 国网江苏省电力有限公司电力科学研究院 | Gas state multi-parameter detection sensor and self-calibration method thereof |
| CN116989855B (en) * | 2023-09-27 | 2023-12-08 | 国网江苏省电力有限公司电力科学研究院 | Gas state multi-parameter detection sensor and self-calibration method thereof |
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