CN107515248A - A kind of detection means, detecting system and the detection method of pipeline internal oxidition skin - Google Patents
A kind of detection means, detecting system and the detection method of pipeline internal oxidition skin Download PDFInfo
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- CN107515248A CN107515248A CN201710617518.3A CN201710617518A CN107515248A CN 107515248 A CN107515248 A CN 107515248A CN 201710617518 A CN201710617518 A CN 201710617518A CN 107515248 A CN107515248 A CN 107515248A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/106—Number of transducers one or more transducer arrays
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Abstract
The invention discloses a kind of detection means, detecting system and the detection method of pipeline internal oxidition skin, the detection means of the pipeline internal oxidition skin includes ultrasonic transmitter and ultrasonic receiver, and the ultrasonic transmitter and the ultrasonic receiver are respectively symmetrically located on the both sides of tested horizontal pipe；The ultrasonic transmitter is provided with multiple transmitting array elements, the ultrasonic receiver is provided with multiple reception array elements for being used to receive the ultrasonic signal of the transmitting array element transmitting, each transmitting array element is symmetrical arranged with the center of circle of cross section of the corresponding reception array element on being tested horizontal pipe, so that pipeline internal oxidition skin content can be effectively detected in the case where not dismantling pipeline, to improve the security of conduit running.
Description
Technical field
The present invention relates to technical field of nondestructive testing, especially a kind of detection means, the detecting system of pipeline internal oxidition skin
And detection method.
Background technology
Today's society, the purposes of pipeline is very extensive, is used primarily in feedwater, draining, heat supply, gives gas, long distance delivery
In oil and natural gas, agricultural irrigation, hydraulic engineering and various commercial plants.However, pipeline tends to accumulate a variety of debris,
Especially in the environment of hot humid, it is easy to produce oxide skin.When the oxide skin content in pipeline reaches certain scale, can lead
Function pipeline is caused to be greatly lowered or even block pipeline.
But because the oxide skin content in pipeline can not be detected with present technology, and the dismounting of pipeline is very numb
It is tired, often wait until that line clogging is just cleared up in reality.And in this environment of for example station boiler, even if using resistance to height
Temperature, the good stainless steel of corrosion resistance manufacture pipeline, and oxidation reaction still occurs after over time for pipeline work, form oxygen
Change skin；When pipe temperature fluctuates, oxide skin easily peels off accumulation in the duct and reaches certain thickness, and to boiler
Safe operation causes greatly to endanger, if not detected to the oxide skin in pipeline and being cleared up in time, oxide skin when serious
Pipeline can be caused to be burst in heating.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of detection means of pipeline internal oxidition skin, it can not tear open
Pipeline internal oxidition skin content is effectively detected in the case of unloading pipeline, to improve the security of conduit running.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of detection means of pipeline internal oxidition skin, including
Ultrasonic transmitter and ultrasonic receiver, the ultrasonic transmitter and the ultrasonic receiver are respectively symmetrically located at level
On the both sides of pipeline；The ultrasonic transmitter is provided with multiple transmitting array elements, and the ultrasonic receiver is provided with multiple use
In the reception array element for the ultrasonic signal for receiving the transmitting array element transmitting, each transmitting array element and the corresponding reception
The center of circle of cross section of the array element on being tested horizontal pipe is symmetrical arranged.
As the improvement of such scheme, the detection means of the pipeline internal oxidition skin also includes the first fixture and second and consolidated
Determine part, first fixture and second fixture are respectively symmetrically sheathed on the both sides of the horizontal pipe, described super
Pinger is on first fixture, and the ultrasonic receiver is on second fixture.
As the improvement of such scheme, first fixture and second fixture are semicircle ring structure, described
One end of first fixture is connected with one end of second fixture, and the other end of first fixture is solid with described second
Determine the other end connection of part.
As the improvement of such scheme, one end of first fixture is provided with first through hole, first fixture
The other end be provided with the second through hole, one end of second fixture is provided with third through-hole, second fixture it is another
One end is provided with fourth hole；The first through hole is connected with the third through-hole by fixture, second through hole and institute
Fourth hole is stated to connect by fixture.
The present invention also provides a kind of detecting system of pipeline internal oxidition skin, including controller and above-mentioned pipeline internal oxidition
The detection means of skin, the controller are provided with data processing module and data acquisition module, the data acquisition module it is defeated
Enter end to electrically connect with the output end of the ultrasonic receiver, the input of the data processing module and the data acquisition module
The output end electrical connection of block.
As the improvement of such scheme, the data acquisition module includes A/D modular converters, fpga chip and memory,
The input of the A/D modular converters electrically connects with the input of the data acquisition module, the input of the fpga chip
Electrically connected with the output end of the A/D modular converters, the output end of the input of the memory and the fpga chip is electrically connected
Connect, the output end of the memory electrically connects with the output end of the data acquisition module.
As the improvement of such scheme, the detecting system of the pipeline internal oxidition skin also includes display module, the display
The input of module electrically connects with the output end of the data processing module.
The embodiment of the present invention also provides a kind of detection method of the detecting system based on above-mentioned pipeline internal oxidition skin, including
Following steps：
S1, the ultrasonic transmitter and the ultrasonic receiver are respectively symmetrically located on the both sides of horizontal pipe；
S2, the ultrasonic signal for receiving the transmitting array element transmitting corresponding to array element reception；
S3, the element position letter of any reception array element for receiving ultrasonic signal of the data collecting module collected
Number, and the element position signal collected is sent to the data processing module；
S4, the data processing module go out in the horizontal pipe according to the element position signal of change received
Oxide skin content.
As the improvement of such scheme, the element position signal includes highest array element signals and minimum array element signals.
Detection means, detecting system and the detection method of pipeline internal oxidition skin provided in an embodiment of the present invention, have as follows
Beneficial effect：
The embodiment of the present invention utilizes the oxide skin content in ultrasonic wave through transmission technique detection level pipeline, the ultrasonic wave transmitting
Device and the ultrasonic receiver are respectively symmetrically located on the both sides of horizontal pipe, and it is i.e. detectable described that realization need not dismantle pipeline
Content of the oxide skin in the horizontal pipe；Launch ultrasonic wave by the transmitting array element on the ultrasonic transmitter to believe
Number in the horizontal pipe, and each transmitting array element and the corresponding horizontal stroke for receiving array element on tested horizontal pipe
The center of circle in section is symmetrical arranged, not described so as to be received according to the reception array element on the ultrasonic receiver
The ultrasonic signal that horizontal pipe internal oxidition skin stops, to detect the accumulation of oxide skin both sides in the horizontal pipe
Highly, the horizontal pipe internal oxidition skin content and then is effectively detected, to improve the security of conduit running.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the detection means of pipeline internal oxidition skin provided by the invention；
Fig. 2 is the structural representation of another embodiment of the detection means of pipeline internal oxidition skin provided by the invention；
Fig. 3 is the structural representation of the detecting system of pipeline internal oxidition skin provided by the invention；
Fig. 4 is the schematic flow sheet of the detection method of pipeline internal oxidition skin provided by the invention；
Fig. 5 is that the detecting system of pipeline internal oxidition skin provided by the invention detects the principle that oxide skin is not present in pipeline
Figure；
Fig. 6 is that the detecting system of pipeline internal oxidition skin provided by the invention detects the principle that oxide skin in pipeline be present
Figure；
Fig. 7 is the schematic diagram calculation of pipeline internal oxidition skin content provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of detection means of pipeline internal oxidition skin, including ultrasonic transmitter 1
With ultrasonic receiver 2, the ultrasonic transmitter 1 and the ultrasonic receiver 2 are respectively symmetrically located at the two of horizontal pipe
On side；The ultrasonic transmitter 1 is provided with multiple transmitting array elements 11, and the ultrasonic receiver 2 is provided with multiple for connecing
The reception array element 21 for the ultrasonic signal that the transmitting array element 11 is launched is received, each transmitting array element 11 described connects with corresponding
The center of circle for receiving cross section of the array element 21 on being tested horizontal pipe is symmetrical arranged.
The embodiment of the present invention utilizes the oxide skin content in ultrasonic wave through transmission technique detection level pipeline, the ultrasonic wave transmitting
Device 1 and the ultrasonic receiver 2 are respectively symmetrically located on the both sides of horizontal pipe, and realization need not dismantle the i.e. detectable institute of pipeline
State content of the oxide skin in the horizontal pipe；It is super by the transmitting array element 11 transmitting on the ultrasonic transmitter 1
Acoustic signals in the horizontal pipe, and each transmitting array element 11 with the corresponding reception array element 21 on tested water
The center of circle of the cross section of flat pipeline is symmetrical arranged, so as to according to the reception array element 21 on the ultrasonic receiver 2
The ultrasonic signal not stopped by the horizontal pipe internal oxidition skin is received, to detect the oxide skin in the horizontal tube
The piling height of both sides in road, and then the horizontal pipe internal oxidition skin content is effectively detected, to improve the peace of conduit running
Quan Xing.
It should be understood that the oxide skin in the horizontal pipe has barrier effect to ultrasonic signal, when the ultrasound
Wave launcher 1 launches ultrasonic signal in the horizontal pipe by the transmitting array element 11, portion of ultrasonic sound wave signal by
The barrier effect of the oxide skin and can not be received by the reception array element 21, therefore, when having oxide skin in the horizontal pipe
In the presence of, the only part array element 21 that receives can receive the ultrasonic signal；In addition, each transmitting array element 11
It is symmetrical arranged with the center of circle of cross section of the corresponding reception array element 21 on the horizontal pipe, its reason is：Due to
The oxide skin accumulation is the horizontal pipe bottom and oxide skin distribution is more uniform, in order to more accurately detect
The content of the oxide skin in the horizontal pipe, then need to obtain the accumulation of oxide skin both sides in the horizontal pipe
The average tap height of height and the oxide skin in the horizontal pipe, so that the detection means of the pipeline internal oxidition skin
The horizontal pipe internal oxidition can highly effectively be detected by the piling height of the both sides and the average tap
Skin content, to improve the security of conduit running.
It should be noted that the detection means of the pipeline internal oxidition skin is used to detect the level parallel with ground level
Pipeline, and the horizontal pipe is circular pipe, the horizontal pipe is parallel to the ground, and the oxide skin can just be piled up in described
The bottom of horizontal pipe, if the U-shaped pipe that detection is placed vertically, the position of the detection means detection of the pipeline internal oxidition skin
Should be the pipeline between two corners of the U-tube, and for the horizontal positioned U-tube, then the part detected
Can be any region of the U-tube, should also follow above-mentioned method when detecting other kinds of pipeline is in pipeline
Detected corresponding to being carried out in the case of different placements, so, the detection means of the pipeline internal oxidition skin is able to detect that described
The oxide skin content in horizontal pipe, and the oxide skin content results after detection are with a high credibility.
In addition, the reception array element 21 is distributed on the ultrasonic receiver 2 in height, corresponding, the transmitting battle array
Member 11 is distributed on the ultrasonic transmitter 1 in height；It can receive not by the ultrasonic wave of the oxide barrier
Array element 21 is received described in the highest of signal to correspond to launch the ultrasonic wave and not by the minimum institute of the oxide barrier
State transmitting array element 11；Similarly, it can receive and described not connect by the minimum of the ultrasonic signal of the oxide barrier
Array element 21 is received to correspond to launch the ultrasonic wave and launch array element 11 not described in the highest of the oxide barrier；It is described
The detection means of pipeline internal oxidition skin is detected close to the ultrasonic transmitter 1 by receiving array element 21 described in the highest
The piling height of oxide skin described in side and detected by the minimum reception array element 21 close to the ultrasonic receiver
The piling height of oxide skin described in 2 side, the piling height of the oxide skin of both sides can more accurately be passed through with this
The horizontal pipe internal oxidition skin content is detected, to improve the security of conduit running.
Referring to Fig. 1, in one embodiment of the present invention, it is preferred that the ultrasonic transmitter 1 is provided with fan-shaped emission
Face 12, multiple transmitting array elements 11 are evenly distributed on the fan-shaped emission face 12；The ultrasonic receiver 2 is provided with fan
Shape receiving plane 22, multiple reception array elements 21 are evenly distributed on the fan-shaped receiving plane 22.
Specifically, when the ultrasonic transmitter 1 and the ultrasonic receiver 2 are respectively symmetrically located at the two of horizontal pipe
When on side, each transmitting array element 11 passes through the fan-shaped emission face 12 and the sector with the corresponding reception array element 21
Receiving plane 22 is symmetrical arranged on the center of circle of the cross section of the horizontal pipe, so that the detection means of the pipeline internal oxidition skin
The piling height of oxide skin both sides in the horizontal pipe can be detected respectively, and then effectively detects the level
Pipeline internal oxidition skin content, to improve the security of conduit running.
It should be noted that the fan-shaped emission face 12 and the fan-shaped receiving plane 22 are full symmetric shape, the fan
The fan-shaped central angle of the shape surface of emission 12 and the fan-shaped receiving plane 22 is less than or equal to 180 °.
Referring to Fig. 2, in another embodiment of the invention, the detection means of the pipeline internal oxidition skin also includes first
The fixture 4 of fixture 3 and second, first fixture 3 and second fixture 4 are respectively symmetrically sheathed on the horizontal tube
On the both sides in road, the ultrasonic transmitter 1 is on first fixture 3, and the ultrasonic receiver 2 is located at described the
On two fixtures 4, so that the ultrasonic transmitter 1 and the ultrasonic receiver 2 can respectively symmetrically be located at horizontal pipe
Both sides on, and then ensure it is each it is described transmitting array element 11 with it is corresponding it is described receive array element 21 pass through the fan-shaped emission face 12
It is symmetrical arranged with the center of circle of cross section of the fan-shaped receiving plane 22 on being tested horizontal pipe, and then causes oxygen in the pipeline
The piling height of oxide skin both sides in the horizontal pipe can accurately be detected by changing the detection means of skin, and then effectively
Ground detects the horizontal pipe internal oxidition skin content, to improve the security of conduit running.
Referring to Fig. 2, the improvement as such scheme, it is preferable that first fixture 3 and second fixture 4 are equal
For semicircle ring structure, one end of first fixture 3 is connected with one end of second fixture 4, first fixture 3
The other end be connected with the other end of second fixture 4.
Specifically, when the detection means of the pipeline internal oxidition skin is detecting the oxide skin in the horizontal pipe
When, the outside of the horizontal pipe is enclosed on by first fixture 3 and second fixture 4 so that the ultrasonic wave
Transmitter 1 and the ultrasonic receiver 2 are respectively symmetrically on the both sides of the horizontal pipe, also, described first fixes
The cirque structure for adapting to the horizontal pipe can be formed after part 3 and second fixture 4 connection, and then ensures each institute
State transmitting array element 11 and the corresponding reception array element 21 by the fan-shaped emission face 12 and the fan-shaped receiving plane 22 on
The center of circle of the cross section of tested horizontal pipe is symmetrical arranged, and then enables the detection means of the pipeline internal oxidition skin accurate
The piling height of oxide skin both sides in the horizontal pipe is detected, and then effectively detects oxygen in the horizontal pipe
Change skin content, to improve the security of conduit running.
Referring to Fig. 2, the improvement as such scheme, it is preferable that one end of first fixture 3 is provided with first through hole
31, the other end of first fixture 3 is provided with the second through hole, and one end of second fixture 4 is provided with third through-hole
41, the other end of second fixture 4 is provided with fourth hole；The first through hole 31 passes through solid with the third through-hole 41
Determine part connection, second through hole is connected with the fourth hole by fixture.
When the detection means of the pipeline internal oxidition skin is detecting the oxide skin in the horizontal pipe, described the
One fixture 3 and second fixture 4 are enclosed on the outside of the horizontal pipe, and by fixture by first fixture
3 and second fixture 4 connect and fix so that the ultrasonic transmitter 1 and the ultrasonic receiver 2 are respectively symmetrically
On the both sides of horizontal pipe, and then the detection means of the pipeline internal oxidition skin is enabled accurately to detect the oxidation
The piling height of skin both sides in the horizontal pipe, and then the horizontal pipe internal oxidition skin content is effectively detected, to carry
The security of high conduit running.
It should be noted that the fixture can be bolt or well known to a person skilled in the art other devices
Thing, these are within protection scope of the present invention, and this is not restricted.
Referring to Fig. 3, the present invention also provides a kind of detecting system of pipeline internal oxidition skin, including controller 5 and above-mentioned
The detection means of pipeline internal oxidition skin, the controller 5 are provided with data processing module 52 and data acquisition module 51, the number
Electrically connected according to the input of acquisition module 51 with the output end of the ultrasonic receiver 2, the data processing module 52 it is defeated
Enter end to electrically connect with the output end of the data acquisition module 51.
It can be received not by the institute of the oxide skin barrier effect specifically, the data acquisition module 51 is used to gather
The position signalling of the reception array element 21 of ultrasonic signal is stated, and the position signalling is transferred to the data processing module
52, the oxide skin is calculated in the horizontal tube close to the side of ultrasonic receiver 2 by the data processing module 52
Piling height and the oxide skin are accumulated high in the horizontal pipe close to the side of ultrasonic transmitter 1 in road
Degree, and thus calculate the average height of the oxide skin in the horizontal pipe.
Referring to Fig. 3, in one embodiment of the present invention, the data acquisition module 51 include A/D modular converters 511,
Fpga chip 512 and memory 513, the input of the input of the A/D modular converters 511 and the data acquisition module 51
Electrical connection, the input of the fpga chip 512 electrically connect with the output end of the A/D modular converters 511, the memory
513 input is electrically connected with the output end of the fpga chip 512, and output end and the data of the memory 513 are adopted
Collect the output end electrical connection of module 51.
In the present embodiment, the data acquisition module 51 by the A/D modular converters 511 will collect described in connect
The position signalling for receiving array element 21 is converted to data signal, and the A/D modular converters 511 send the data signal to described
Fpga chip 512, the data signal is handled by the fpga chip 512 and obtains detecting data, the memory 513 is used to deposit
The detection data are stored up, so that the data processing module 52 calls data, when the detecting system of the pipeline internal oxidition skin connects
During the oxide skin of continuous detection level pipeline, the memory 513 can store the testing number obtained in the horizontal pipe
According to enable the data processing module 52 to obtain the detection data and calculate the oxygen in the horizontal pipe
Change skin content.
Referring to Fig. 3, in one embodiment of the present invention, the detecting system of the pipeline internal oxidition skin also includes display mould
Block, the input of the display module electrically connect with the output end of the data processing module 52.
In embodiments of the present invention, the display module is any display, for showing the institute in the horizontal pipe
State oxide skin content.
Referring to Fig. 4, the embodiment of the present invention also provides a kind of detection of the detecting system based on above-mentioned pipeline internal oxidition skin
Method, comprise the following steps：
S1, the ultrasonic transmitter 1 and the ultrasonic receiver 2 are respectively symmetrically located to the both sides of horizontal pipe
On；
S2, the array element 21 that receives receive the ultrasonic signal that the corresponding transmitting array element 11 is launched；
S3, the data acquisition module 51 gather the array element position of any reception array element 21 for receiving ultrasonic signal
Confidence number, and the element position signal collected is sent to the data processing module 52；
S4, the data processing module 52 go out in the horizontal pipe according to the element position signal of change received
Scale thickness.
Above-mentioned detection method is by the way that the ultrasonic transmitter 1 and the ultrasonic receiver 2 are respectively symmetrically located at
On the both sides of tested horizontal pipe；Then the array element 21 that receives receives the ultrasonic wave letter that the corresponding transmitting array element 11 is launched
Number；The data acquisition module 51 gathers the element position signal of any reception array element 21 for receiving ultrasonic signal,
And the element position signal collected is sent to the data processing module 52；The data processing module 52 is according to connecing
The content for the oxide skin that the element position signal of change received goes out in tested horizontal pipe.
Referring to Fig. 5~7, as the improvement of such scheme, the element position signal includes highest array element signals and minimum
Array element signals.
Specifically, in embodiments of the present invention, the transmitting array element 11 and the number for receiving array element 21 are all n, n
≥2；The described transmitting array elements 11 of n and the n reception array elements 21 are respectively uniformly distributed in the ultrasonic transmitter 1 and described
On ultrasonic receiver 2；Simultaneously as the central angle of the fan-shaped emission face 12 and the fan-shaped receiving plane 22 is all 180 °,
So the data acquisition module 51 can gather the oxidation of the horizontal pipe lowest part by the reception array element 21
The content of skin, the data processing module 52 obtain the oxygen according to the element position signal of the data acquisition module 51
Change the skin height of both sides and the ratio of the horizontal pipe diameter, i.e., height of described oxide skin in the horizontal pipe to account for
Than when exceeding the half of the horizontal pipe internal volume due to the oxide skin content, the oxide skin will stop all institutes
The transmission of ultrasonic signal is stated, the reception array element can not receive the ultrasonic signal, therefore the threshold of the height accounting
Value scope is 0~50%.
It should be understood that when the height accounting is 50%, represent that the oxide skin content is accounted in the horizontal pipe
The half of volume is, it is necessary to clear up the horizontal pipe；When the height accounting is 0, represent in the horizontal pipe without described in
Oxide skin is present；When the data acquisition module 51 does not collect the output signal of the ultrasonic receiver 2, the oxidation
Skin content has exceeded the half of the horizontal pipe internal volume, it is necessary to clear up the horizontal pipe.
Furthermore, it is necessary to explanation, when the central angle in the fan-shaped emission face 12 and the fan-shaped receiving plane 22 is less than
At 180 °, the peak of the height accounting is 50%, and the minimum of the height accounting is by the relative institute of the reception array element 21
State the extreme lower position of horizontal pipe and the diameter of the horizontal pipe and determine；The transmitting array element 11 and the reception array element 21
Number be all n, it is preferable that area and certain fan-shaped receiving plane 22 in certain fan-shaped emission face 12
In the case of area, the number of the transmitting array element 11 and the reception array element 21 is more, the inspection of the pipeline internal oxidition skin content
It is more accurate to survey result, can be by described in change if the testing result for pursuing the pipeline internal oxidition skin content reaches certain precision
The shape and the transmitting array element 11 and the number for receiving array element 21 of fan-shaped emission face 12 and the fan-shaped receiving plane 22 reach
To certain precision.
Referring to Fig. 5, in the embodiment of the present invention when it is implemented, when in the horizontal pipe without the oxide skin, n institute
Stating reception array element 21 corresponding can receive the ultrasonic signal, and the data acquisition module 51 can collect described connect
The minimum element position signal and highest element position signal of array element 21 are received, and by the minimum array element signals collected and institute
State highest array element signals and be sent to the data processing module 52, the data processing module 52 is described minimum according to what is received
Array element signals and the highest array element signals, which calculate non-scale in the horizontal pipe, to be present, then need not clear up pipeline；Phase
Anti-, when any reception array element 21 does not receive the ultrasonic signal, illustrate described in the horizontal pipe
Oxide skin content alreadys exceed the half of the horizontal pipe internal volume, it is necessary to clear up pipeline.
Referring to Fig. 6, when the oxide skin be present in the horizontal pipe, the oxide skin is deposited in the horizontal pipe
Interior, A ends are the oxide skin close to the side of ultrasonic transmitter 1, and B ends are close to the side of ultrasonic receiver 2
The oxide skin, since one on the A ends it is described transmitting array element 11 can launch the ultrasonic signal not by A ends
The oxide skin stops, and on the B ends, be successfully received the ultrasonic signal the reception array element 21 it is described most
High array element signals are N1, and the minimum array element signals are N2.
It should be understood that the highest array element signals N1 includes the position letter of the transmitting array element 11 on the A ends
Breath, i.e. elevation information of the oxide skin at A ends in the horizontal pipe, the data processing module 52 is by being calculated
The array element signals at the A ends are N3, N3=n-N1；And the minimum array element signals N2 represents the oxide skin at A ends described
Elevation information in horizontal pipe.
In specific implementation process, the detection means of the pipeline internal oxidition skin is sheathed on the horizontal pipe first
Both sides, then the ultrasonic transmitter 1 launch the ultrasonic signal in the horizontal pipe, the ultrasonic receiver
Receive the ultrasonic signal；Then the energy of the data processing module 52 in the detecting system of the pipeline internal oxidition skin
The highest array element signals N1, the minimum array element signals N2 are enough collected by the data acquisition module 51 and calculate institute
State A ends array element signals N3.
Referring to Fig. 7, it is preferable that the data processing module 52 carries out following data processing：Pass through the horizontal pipe
Internal diameter is R, a diameter of 2R of the horizontal pipe, to calculate the height accounting for the oxide skin for obtaining the A ends, the B
Average height accounting of the height accounting and the oxide skin of the oxide skin at end in the horizontal pipe, is calculated such as
Under, from N3 and n, the central angle of the A ends and the horizontal pipe minimum point is α, α=N3/n*180 °, r1=R*cos
α, r2=R-r1；It can thus be concluded that the height accounting of the oxide skin at the A ends is h1=r2/2R=(R-Rcos α)/2R；Root
According to identical computational methods, the accounting for drawing the oxide skin height at the B ends is h2, thus, the data processing module
52 can calculate the average height accounting h3=(h1+h2)/2 of the oxide skin.It should be noted that described h1, h2 and h3
Threshold value be 0~50%, when the result of calculation of the data processing module 52 is more than 50%, the data processing module 52 is defeated
Go out value and remain as 50%；User judges the oxygen in the horizontal pipe according to the result of the data processing module 52
Change the content of skin, and then the horizontal pipe is cleared up.
If it should be noted that the ultrasonic receiver 2 illustrates the oxide skin at the A ends and the B without output
The height of the oxide skin at end is than sum more than 100%, or the average oxidation skin content in the horizontal pipe exceedes
50%, thus user can directly judge the oxide skin content overproof in the horizontal pipe, it is necessary to the horizontal tube
Road is cleaned.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvement and deformation can also be made, these are improved and deformation is also considered as
Protection scope of the present invention.
Claims (7)
1. a kind of detection means of pipeline internal oxidition skin, it is characterised in that including ultrasonic transmitter and ultrasonic receiver, institute
Ultrasonic transmitter and the ultrasonic receiver is stated respectively symmetrically to be located on the both sides of horizontal pipe；
The ultrasonic transmitter is provided with multiple equally distributed transmitting array elements, and the ultrasonic receiver is provided with multiple use
In the reception array element for the ultrasonic signal for receiving the transmitting array element transmitting, each transmitting array element and the corresponding reception
The center of circle of cross section of the array element on being tested horizontal pipe is symmetrical arranged.
2. the detection means of pipeline internal oxidition skin as claimed in claim 1, it is characterised in that the inspection of the pipeline internal oxidition skin
The first fixture and the second fixture that device also includes being shaped as semicircular ring are surveyed, first fixture and described second is fixed
Part is respectively symmetrically sheathed on the both sides of the horizontal pipe, and the ultrasonic transmitter is on first fixture, institute
Ultrasonic receiver is stated on second fixture, is combined into an annulus detection means.
3. a kind of detecting system of pipeline internal oxidition skin, it is characterised in that including controller and as claim 1~2 is any
The detection means of pipeline internal oxidition skin described in, the controller are provided with data processing module and data acquisition module, institute
The input for stating data acquisition module electrically connects with the output end of the ultrasonic receiver, the input of the data processing module
End electrically connects with the output end of the data acquisition module.
4. the detecting system of pipeline internal oxidition skin as claimed in claim 3, it is characterised in that the data processing module includes
A/D modular converters, fpga chip and memory, the input of the A/D modular converters and the input of the data acquisition module
End electrical connection, the input of the fpga chip electrically connect with the output end of the A/D modular converters, the input of the memory
End electrically connects with the output end of the fpga chip, the output end of the memory and the output end electricity of the data acquisition module
Connection.
5. the detecting system of pipeline internal oxidition skin as claimed in claim 3, it is characterised in that the inspection of the pipeline internal oxidition skin
Examining system also includes display module, and the input of the display module electrically connects with the output end of the data processing module.
6. a kind of detection method of the detecting system of the pipeline internal oxidition skin based on as described in any one of claim 3~5, it is special
Sign is, comprises the following steps：
S1, the ultrasonic transmitter and the ultrasonic receiver are respectively symmetrically located on the both sides of horizontal pipe；
S2, the ultrasonic signal for receiving the transmitting array element transmitting corresponding to array element reception；
S3, the element position signal of any reception array element for receiving ultrasonic signal of the data collecting module collected,
And the element position signal collected is sent to the data processing module；
S4, the oxidation that the data processing module goes out in the horizontal pipe according to the element position signal of change received
Skin content.
7. the detection method of pipeline internal oxidition skin as claimed in claim 6, it is characterised in that the element position signal includes
Highest array element signals and minimum array element signals.
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