CN207742152U - A kind of channel bend detecting system based on far-field eddy - Google Patents
A kind of channel bend detecting system based on far-field eddy Download PDFInfo
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- CN207742152U CN207742152U CN201721914004.6U CN201721914004U CN207742152U CN 207742152 U CN207742152 U CN 207742152U CN 201721914004 U CN201721914004 U CN 201721914004U CN 207742152 U CN207742152 U CN 207742152U
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- Prior art keywords
- sliding rail
- perforation
- far
- detection
- insulation crust
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Abstract
The utility model provides a kind of channel bend detecting system based on far-field eddy, including insulation crust, detection inner cavity；Detection inner cavity includes sliding rail, and sliding rail is equipped with perforation I arranged in parallel；Detection device includes secondary shielding layer, one side connection insulation drawstring, the other end connection block for the drawstring that insulate；Package first screen layer package scans circuit board for receiving, temperature sensor, excitation coil in secondary shielding layer；Fixture block is equipped between first screen layer and secondary shielding layer, fixture block is equipped with perforation II；Perforation I is connect with perforation II by fixing card.The both ends of signal receiving processor are separately connected temperature sensor, display；Display includes controller, and controller connects temperature alarming device.Insulation crust includes telescope support and measuring scale.The utility model advantageous effect：Detection device can be slided on sliding rail, realize that the detection of different-diameter pipeline, testing result can reject temperature to data influence, telescope support ensure that the balance of device.
Description
Technical field
The utility model is related to detection field, more particularly to a kind of channel bend detecting system based on far-field eddy.
Background technology
Pipeline is widely used in multiple industries such as oil gas, chemical industry, electric power and heating, and the detection of common channel bend is difficult
With by the way that there are the elbows of deposit.There are a kind of elbow detection device, the patent No. 201520851462.4, entitled one kind at present
Channel bend detection device based on far-field eddy is used and is constituted including two identical exciting units and receiving unit
Far-field eddy sensor, and two exciting units are located at receiving unit both sides, exciting unit and receiving unit are along detected
Channel bend cross section is circumferentially disposed, and receiving unit is located at the far-field region for measuring INDIRECT COUPLING magnetic field signal；Above-mentioned practicality
New patent inherits the non-contact and quick advantage of conventional vortex, while scan mode being taken to greatly reduce check frequency.But
There is also shortcoming, be 1. because：" exciting unit and receiving unit are circumferentially set along detected channel bend cross section
Set ", the exciting unit of the detection device must be in direct contact with detected channel bend, so this equipment is suitable only for single diameter
Pipeline；2. temperature has a certain impact to eddy current sensor, this equipment does not account for temperature influence.
In conclusion how to develop a kind of novel detecting system, the detection of channel bend can be met, the device and energy
Adapt to the pipeline of multiple diameter, it is cost-effective, and the value that measures can be accurate, it is contemplated that temperature influences, be have at present it is to be solved
Problem.
Utility model content
According to the above problem, the utility model provides one kind " ︹ " type structure, double excitation, detection device and can move up and down
To meet the needs of different-diameter pipeline, can show and upload temperature, signal a kind of accurately pipeline based on far-field eddy
Elbow detecting system.
Technical solution：
A kind of channel bend detecting system based on far-field eddy, including insulation crust, detection inner cavity.
Power supply and display are equipped at the top of the insulation crust.
Wherein, the side of the insulation crust is equipped with handle, and the handle is equipped with insulating layer.
The detection inner cavity, including sliding rail, detection device, signal receiving processor and a plurality of circuit.
The detection inner cavity is " ︹ " type structure with insulation crust, is divided into middle waist and both ends.Detection inner cavity " ︹ " type
The both ends of structure are equipped with sliding rail and detection device, and the middle waist of " ︹ " type structure is equipped with signal receiving processor.
The sliding rail is equipped with multiple perforation I arranged in parallel.
The detection device is an inclusion enclave, including secondary shielding layer, the outside connection insulation of the secondary shielding layer
The other end of drawstring, the insulation drawstring is connected to the block outside insulation crust.The first screen is wrapped up in the secondary shielding layer
Cover layer, package scans circuit board for receiving, temperature sensor, excitation coil in the first screen layer.The first screen layer with
Fixture block is equipped between secondary shielding layer, the fixture block is equipped with multiple perforation II arranged in parallel.
Perforation I on the sliding rail is connect with perforation II by fixing card, and is fixed on sliding rail.
The circuit includes harmonic signal exciting circuit, temperature sensing circuit, signal processing circuit, A/D conversion circuits.
The excitation coil is connected to the composition harmonic signal exciting circuit with the power supply on insulation crust, wherein described swash
It is multiple excitation coils of different sizes to encourage coil.
In the first screen layer, it is located at the center of detection device, excitation coil edge is equipped with the temperature sensor, institute
It states temperature sensor and the signal receiving processor is connected by the temperature sensing circuit.
The other side of the excitation coil connects the scanning circuit board for receiving, the other end of the scanning circuit board for receiving
The signal receiving processor is connected by signal processing circuit.
The signal receiving processor connects the display on insulation crust, the display packet by A/D conversion circuits
Include controller, the controller connection connection temperature alarming device.
The middle waist portions of insulation crust " ︹ " the type structure, before and after be equipped with telescope support.
The insulation crust is connected by two II connects hinges of screw, the other end of the hinge by three screws III
There is the telescopic rod of telescope support；The telescope support includes clamp, telescopic rod.Wherein, when the telescope support is in work shape
Under state, the telescope support rotates 180 degree by the connecting rod of hinge, and the center of the hinge is clear area, the clamp card
The fixation of angle is completed in clear area.Wherein, the telescopic rod is more piece.The side connects hinge of first section telescopic bar, separately
The both sides on the head of side are set there are two circular hole arranged in parallel, and cross bar I passes through circular hole I, and the side of the cross bar I is stretched described
The outside of contracting bar, other side connecting spring on the inside of the telescopic rod, the spring other side connect cross bar II, cross bar II it is another
Side connected circular hole II；Abrasionproof rubber cushion is equipped between first section telescopic bar and next section telescopic bar.
Wherein, the middle waist portions of insulation crust " ︹ " the type structure are equipped with measuring scale (8), and the measuring scale is close to cunning
Rail.
The beneficial effects of the utility model are：The double excitation that the utility model inherits furthers far-field region, improves measured signal
Amplitude, the advantage for fully demonstrating precursor in far field, solution inside-through type far-field eddy sensor are difficult to carry out channel bend
The advantages of detection, in addition to this it also have the advantages that the following aspects：1. by giving intracavitary in detection that railroad is added,
By way of drawing insulation drawstring by hand, sliding up and down for detection device is realized, because the present apparatus is " ︹ " type structure, that is,
It is up-thin-low-thick, so further realizing the detection of different-diameter pipeline elbow；2. by insulation crust " ︹ " type structure
Before and after it plus telescope support, when channel bend for realizing detection arbitrary diameter, all keeps equilibrium state to waist portions.3. temperature pair
The result measured has certain influence, when measured pipeline is high-temperature pipe, by temperature sensor measurement and uploads temperature, makes
Controller realizes influence of the comprehensive analysis temperature to testing result, and rejects temperature influence.When temperature reaches certain value, control
Device sends out instruction to temperature alarming device, and stops detecting.4. measuring scale can measure the diameter of pipeline；5. screen unit is arranged
At two layers, interference of the various circuits to detection device outside detection device is eliminated, the true of present apparatus data measured is increased
Reality.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 sliding rail schematic diagrames；
Fig. 3 telescope support schematic diagrames；
Fig. 4 measuring scale schematic diagrames；
Fig. 5 telescopic rod schematic diagrames；
In figure：
1, insulation crust 2, detection inner cavity 3, power supply
4, display 5, controller 6, temperature alarming device
7, handle 8, insulating layer 9, sliding rail
10, detection device 11, measuring scale 12, circular hole II
13, abrasionproof rubber cushion 14, signal receiving processor 15, perforation I
16, secondary shielding layer 17, insulation drawstring 18, block
19, first screen layer 20, scanning circuit board for receiving 21, temperature sensor
22, excitation coil 23, fixture block 24, perforation II
25, fixing card 26, screw II 27, hinge
28, harmonic signal exciting circuit 29, temperature sensing circuit 30, signal processing circuit
31, A/D conversion circuits 32, screw III 33, telescope support
34, telescopic rod 35, clamp 36, cross bar II
37, clear area 38, circular hole I 39, cross bar I
40, spring
Specific implementation mode
In order to be better understood from the utility model, with reference to specific embodiments and the drawings to the utility model into advance one
The description of step.
As shown in Figs. 1-5, a kind of channel bend detecting system based on far-field eddy, including insulation crust 1, detection inner cavity
2。
1 top of the insulation crust is equipped with power supply 3 and display 4, and the display 4 includes controller 5, the controller
5 connections connect the temperature alarming device 6.
Wherein, the side of the insulation crust 1 is equipped with handle 7, and the handle 7 is equipped with insulating layer 8.
When manual operation, when insulating layer 8 can avoid device and surprisingly leak electricity, the damage to human body.
The material of the insulating layer 8 is rubber or plastics or glass, and as preferred, this is preferably plastics.
The detection inner cavity 2, including sliding rail 9, detection device 10, signal receiving processor 14 and a plurality of circuit.
The detection inner cavity 2 is " ︹ " type structure with insulation crust 1, is divided into middle waist and both ends.The detection inner cavity 2 " ︹ "
The both ends of type structure are equipped with sliding rail 9 and detection device 10, and the middle waist of " ︹ " type structure is equipped with signal receiving processor 14.
The sliding rail 9 is equipped with multiple perforation I 15 arranged in parallel.
The detection device 10 is an inclusion enclave, including secondary shielding layer 16, the outside of the secondary shielding layer 16 connect
Insulation drawstring 17 is connect, the other end of the insulation drawstring 17 is connected to the block 18 outside insulation crust 1.The secondary shielding layer
Wrap up first screen layers 19 in 16, package scans circuit board for receiving 20, temperature sensor 21, excitation in the first screen layer 19
Coil 22.Fixture block 23 is equipped between the first screen layer 19 and secondary shielding layer 16, the fixture block 23 is equipped with arranged in parallel
Multiple perforation II 24.
Perforation I 15 on the sliding rail 9 is connect with perforation II 24 by fixing card 25, and is fixed on sliding rail 9.
When detecting pipeline, the both ends of the detection device 10 are stuck on pipeline, detection device 10 is determined by range estimation
Position, the detection device 10 realize moving up and down on sliding rail 9, position by way of manually pulling the insulation drawstring 17
It sets after setting, by the way that fixing card 25 is inserted into perforation I 15 and perforation II 24, realizes the fixation of detection device 10.
Wherein, the middle waist portions of the insulation crust 1 " ︹ " type structure are equipped with measuring scale 118, and the measuring scale 11 is tight
Adjacent sliding rail 9.The numerical value of the measuring scale 11 is the distance between the both ends of " ︹ " type structure, be can measure by the measuring scale 11
The diameter of pipeline.
The circuit includes harmonic signal exciting circuit 28, temperature sensing circuit 29, signal processing circuit 30, A/D conversions
Circuit 31.
The excitation coil 22 is connected to the composition harmonic signal exciting circuit 28 with the power supply 3 on insulation crust 1, wherein
The excitation coil 22 is multiple excitation coils 22 of different sizes.
The center of the detection device 10,22 edge of excitation coil are equipped with the temperature sensor 21, the temperature sensing
Device 21 connects the reception processor by the temperature sensing circuit 29.
The other side of the excitation coil 22 connects the scanning circuit board for receiving 20, the scanning circuit board for receiving 20
The other end connects the signal receiving processor 14 by signal processing circuit 30.
The signal receiving processor 14 connects the display 4 on insulation crust 1 by A/D conversion circuits 31.
Wherein, harmonic signal exciting circuit 28 provides harmonic excitation to excitation coil 22, and excitation coil 22 is arranged in pipeline
Elbow outer surface induces the INDIRECT COUPLING magnetic field signal for generating and being vortexed and receive vortex far-field region with excitation, is translated into electricity
After pressing signal, scanning circuit board for receiving 20 is sent to, scanning circuit board for receiving 20 is amplified received signal, filters, comparing
Reception processor is sent to by signal processing circuit 30 more afterwards, processor is received and analog signal is passed through into A/D conversion circuits 31
Digital signal is converted to send in display 4, display 4 handles data, the corrosion to obtain tested pipeline elbow and
Crack defect information.
The middle waist portions of the insulation crust 1 " ︹ " type structure, before and after be equipped with telescope support 33.
The insulation crust 1 passes through three spiral shells by two II 26 connects hinges 27 of screw, the other end of the hinge 27
Silk III 32 is connected with the telescopic rod 34 of telescope support 33；The telescope support 33 includes clamp 35, telescopic rod 34.Wherein, work as institute
State telescope support 33 it is in running order under, the telescope support 33 rotates 180 degree, the hinge by the connecting rod of hinge 27
27 center is clear area 37, and the clamp 35 is stuck in the fixation that angle is completed in clear area 37.Wherein, the telescopic rod 34 is
More piece.The both sides of the side connects hinge 27 of first section telescopic bar 34, the head of the other side are set there are two circular hole arranged in parallel,
Cross bar I 39 passes through circular hole I 38, and the side of the cross bar I 39 is in the outside of the telescopic rod 34, and the other side is in the telescopic rod 34
Inside connecting spring 40,40 other side of the spring connect cross bar II 36, and abrasionproof glue is equipped between telescopic rod 34 and telescopic rod 34
Pad 13.
Telescope support 33 can arbitrarily stretch, so in any measurement scene, the present apparatus can be made to keep balance.
The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model
Embodiment should not be considered as limiting the scope of the present invention.It is all to become according to impartial made by the scope of the utility model
Change and improve etc., it should all still belong within this patent covering scope.
Claims (4)
1. a kind of channel bend detecting system based on far-field eddy, including insulation crust (1), detection inner cavity (2)；The detection
Inner cavity (2) is " ︹ " type structure with insulation crust (1), is divided into middle waist and both ends；The two of described detection inner cavity (2) " ︹ " type structure
End is equipped with detection device (10), it is characterised in that：Both ends are equipped with sliding rail (9)；The sliding rail (9) is equipped with arranged in parallel
I (15) of multiple perforation；
The detection device (10) is an inclusion enclave, includes secondary shielding layer (16), first screen layer (19), institute from outside to inside
It states and is equipped with fixture block (23) between secondary shielding layer (16) and first screen layer (19), the fixture block (23) is equipped with arranged in parallel
II (24) of multiple perforation；
Perforation I (15) on the sliding rail (9) is connect with II (24) of perforation by fixing card (25), and is fixed on sliding rail (9)；
The other end of the outside connection insulation drawstring (17) of the secondary shielding layer (16), the insulation drawstring (17) is connected to absolutely
The external block (18) of edge shell (1).
2. a kind of channel bend detecting system based on far-field eddy according to claim 1, it is characterised in that described exhausted
The middle waist portions of edge shell (1) " ︹ " type structure, before and after be equipped with telescope support (33)；
The insulation crust (1) passes through three by two screw II (26) connects hinges (27), the other end of the hinge (27)
A screw III (32) is connected with the telescopic rod (34) of telescope support (33)；The telescope support (33) includes clamp (35), stretches
Bar (34)；The center of the hinge (27) is clear area (37), and the clamp (35) is stuck in clear area (37)；
Wherein, the telescopic rod (34) is more piece；The side connects hinge (27) of first section telescopic bar (34), the head of the other side
Both sides set there are two circular hole arranged in parallel, cross bar I (39) passes through circular hole I (38), and the side of the cross bar I (39) is described
The outside of telescopic rod (34), other side connecting spring (40) on the inside of the telescopic rod (34), spring (40) other side connects
Connect cross bar II (36), the other side connected circular hole II (12) of the cross bar II (36)；First section telescopic bar (34) is stretched with next section
Abrasionproof rubber cushion (13) is equipped between contracting bar (34).
3. a kind of channel bend detecting system based on far-field eddy according to claim 1 or 2, it is characterised in that described
In first screen layer (19), excitation coil (22) edge is equipped with temperature sensor (21), and the temperature sensor (21) passes through temperature
It spends sensing circuit (29) connection signal and receives processor (14)；Signal receiving processor (14) is connected by A/D conversion circuits (31)
Connect the display (4) on insulation crust (1)；The display (4) includes controller (5), and the controller (5) connects temperature report
Alarm device (6).
4. a kind of channel bend detecting system based on far-field eddy according to claim 1, it is characterised in that described exhausted
Edge shell (1) is equipped with measuring scale (11), and the measuring scale (11) is close to sliding rail (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721914004.6U CN207742152U (en) | 2017-12-31 | 2017-12-31 | A kind of channel bend detecting system based on far-field eddy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721914004.6U CN207742152U (en) | 2017-12-31 | 2017-12-31 | A kind of channel bend detecting system based on far-field eddy |
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| Publication Number | Publication Date |
|---|---|
| CN207742152U true CN207742152U (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721914004.6U Expired - Fee Related CN207742152U (en) | 2017-12-31 | 2017-12-31 | A kind of channel bend detecting system based on far-field eddy |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270162A (en) * | 2018-11-28 | 2019-01-25 | 四川沐迪圣科技有限公司 | Multilayer is electromagnetically shielded pulse precursor in far field sensor |
-
2017
- 2017-12-31 CN CN201721914004.6U patent/CN207742152U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270162A (en) * | 2018-11-28 | 2019-01-25 | 四川沐迪圣科技有限公司 | Multilayer is electromagnetically shielded pulse precursor in far field sensor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20191231 |