CN108956752A - PCCP pipeline compressor wire number of breaks detection system and method - Google Patents
PCCP pipeline compressor wire number of breaks detection system and method Download PDFInfo
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- CN108956752A CN108956752A CN201810499737.0A CN201810499737A CN108956752A CN 108956752 A CN108956752 A CN 108956752A CN 201810499737 A CN201810499737 A CN 201810499737A CN 108956752 A CN108956752 A CN 108956752A
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Abstract
The present invention provides a kind of PCCP pipeline compressor wire number of breaks detection system and method, in the system, in either one or two of magnetic excitation device and signal receiving device are set in PCCP pipeline to be detected detection section at two symmetrical inner wall of the pipes;The control instruction of magnetic excitation device receiving control device, generates low frequency alternating magnetic field in pipeline, generates alternating current in the compressor wire and interior steel cylinder of PCCP pipeline to be detected periphery;The electric signal of the induced current and/or induced electromotive force that are generated in signal receiving device acquisition compressor wire and interior steel cylinder by alternating current;Control device calculates the magnetic permeability value in detection section according to above electrical signal, and according to magnetic permeability value and the PCCP pipe detection nominal data library pre-established, determines PCCP pipeline to be detected periphery compressor wire number of breaks.The present invention is able to detect the fracture of wire quantity of the compressor wire of the periphery PCCP on section, has many advantages, such as quantification, not damaged, high-efficient, at low cost, convenient and efficient.
Description
Technical field
The present invention relates to pipeline quality detection technique fields, more particularly, to a kind of PCCP pipeline compressor wire number of fracture
Amount detection systems and method.
Background technique
Prestressed concrete cylinder pipe (Prestressed Concrete Cylinder Pipe, write a Chinese character in simplified form PCCP) is a kind of
The composite pipe being made of sheet metal, compressor wire and concrete.It is first to be rolled up and welded by sheet metal and steel bell and spigot ring
It is connected into cylinder, forms interior steel cylinder, then placing concrete becomes tube core inside and outside interior steel cylinder, then winds in tube core outer circle pre-
Stress wire, finally again the cement mortar protective course of the densification of spray on it and be made.
PCCP pipe has steel and the respective characteristic of concrete, sufficiently and has synthetically played tension, the Yi Mi of steel
The resistance to compression of envelope and concrete, corrosion resistance have high leakproofness, the characteristic of high intensity and high-impermeable.Thus introduced from China
Over more than 20 years of PCCP pipe, PCCP pipe is used widely in multiple fields such as the water conservancies, municipal administration, electric power in China, especially long
Distance, defeated, the water diversion project of big flow.If Middle Line Project For Transferring Water From South To North channel largely uses 4 rice diameter PCCP to manage, total length is more than
110 kilometers, number of tubes reaches 22000;Shanxi Yellow River Diversion Project, is managed using 3 mitron diameter PCCP, and overall length reaches 43.5
Kilometer.
During the operation of PCCP pipe, the compressor wire of pipeline periphery is often because homadamon border, soil and groundwater burn into are applied
Work installation is damaged, external coating falls off, axial thrust power not enough, internal steel cylinder weld cracking, compressor wire hydrogen embrittlement and itself
The many factors such as quality problems and steel wire fracture occurs, when steel wire fracture of wire radical reach to a certain degree when then lose to coagulation
The compression of native tube core causes PCCP structural failure, ultimately causes PCCP booster, as shown in Figure 1.PCCP pipe explosion accident has burst
The features such as property is extremely strong, harmfulness is very big, coverage is extremely wide, often PCCP booster influences the fortune of whole large sized water pipeline line at one
Row, causes the water supply of hundreds of thousands of populations to interrupt, social influence is huge.
For these reasons, the accurate fracture of wire quantity in PCCP pipeline periphery is obtained, and PCCP pipeline is evaluated accurately with this
Structural capacity seems most important.It can not only be established for built PCCP pipeline burst early warning and risk management, simultaneously also
Pipeline is repaired or replaced for owner, and important reference frame is provided.It is domestic at present due to the particularity of PCCP pipeline self construction
The accurate detection means for being directed to PCCP pipe periphery compressor wire fracture of wire quantity is not yet formed outside, is also had no about detection PCCP pipe
Periphery compressor wire broken wires quantifier elimination achievement report.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of PCCP pipeline compressor wire number of breaks detection system and
Method, is able to detect the fracture of wire quantity of the compressor wire of the periphery PCCP on section, which has quantification, lossless
The advantages that hurting, be high-efficient, at low cost, convenient and efficient.
In a first aspect, the embodiment of the invention provides a kind of PCCP pipeline compressor wire number of breaks detection system, packet
It includes: magnetic excitation device, signal receiving device and control device;
Magnetic excitation device and signal receiving device either one or two of are respectively arranged in PCCP pipeline to be detected detection section
At interior two symmetrical inner wall of the pipes;
Magnetic excitation device is managed for the control instruction of receiving control device, and according to control instruction in PCCP to be detected
Low frequency alternating magnetic field, compressor wire and interior steel cylinder by low frequency alternating magnetic field in PCCP pipeline to be detected periphery are generated in road
Middle generation alternating current;
Signal receiving device, for acquiring the induced current generated in compressor wire and interior steel cylinder by alternating current
And/or the electric signal of induced electromotive force;
Control device calculates the magnetic conductivity in detection section according to induced current and/or the electric signal of induced electromotive force
Value, and according to magnetic permeability value and the PCCP pipe detection nominal data library pre-established, determine that PCCP pipeline to be detected periphery is pre-
Stress wire number of breaks.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein control
Device processed includes: control module, data acquisition module and data analysis module;
Control module, for sending control instruction to magnetic excitation device;
Data acquisition module, for receiving the electricity of induced current transmitted by signal receiving device and/or induced electromotive force
Signal, and analog-to-digital conversion and filtering processing are carried out to electric signal, the digital signal that processing obtains is sent to data analysis module;
Data analysis module determines to be checked according to digital signal and the PCCP pipe detection nominal data library pre-established
Survey PCCP pipeline periphery compressor wire number of breaks.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein magnetic
It include: coil in field excitation device and signal receiving device.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein line
The axis of circle is parallel with the axis of PCCP pipeline to be detected.
With reference to first aspect, the embodiment of the invention provides the 4th kind of possible embodiments of first aspect, wherein control
Device processed further include: wireless communication module;
Control device module by wireless communication, by the electric signal of induced current and/or induced electromotive force, digital signal,
Magnetic permeability value and/or PCCP pipeline to be detected periphery compressor wire number of breaks are sent to background server, so that backstage takes
Business device is shown by human-computer interaction interface.
With reference to first aspect, the embodiment of the invention provides the 5th kind of possible embodiments of first aspect, wherein nothing
Line communication module include: Ethernet RJ45 module, WIFI module, bluetooth module, NB-IOT module, at least one in 3G/4G module
Kind.
With reference to first aspect, the embodiment of the invention provides the 6th kind of possible embodiments of first aspect, wherein control
Device processed further include: information recording device;
Information recording device is connect with data acquisition module;
Information recording device, for the telecommunications to induced current transmitted by data acquisition module and/or induced electromotive force
It number is stored.
With reference to first aspect, the embodiment of the invention provides the 7th kind of possible embodiments of first aspect, wherein letter
Number reception device and the positional relationship of magnetic excitation device are that, based on the center of PCCP pipeline to be detected, vertical line is symmetrical.
Second aspect, the embodiment of the present invention also provide a kind of PCCP pipeline compressor wire number of breaks detection method, side
Method is applied in PCCP pipeline compressor wire number of breaks detection system as described in relation to the first aspect, PCCP pipeline prestress steel
Silk number of breaks detection system includes: magnetic excitation device, signal receiving device and control device;Magnetic excitation device and signal
Reception device either one or two of is respectively arranged in PCCP pipeline to be detected in detection section at two symmetrical inner wall of the pipes;
Method includes:
Control instruction transmitted by magnetic excitation device receiving control device, and according to control instruction, in PCCP to be detected
Low frequency alternating magnetic field, compressor wire and interior steel by low frequency alternating magnetic field in PCCP pipeline to be detected periphery are generated in pipeline
Alternating current is generated in cylinder;
The induced current and/or sense generated in signal receiving device acquisition compressor wire and interior steel cylinder by alternating current
Answer the electric signal of electromotive force;
Control device calculates the magnetic conductivity in detection section according to induced current and/or the electric signal of induced electromotive force
Value, and according to magnetic permeability value and the PCCP pipe detection nominal data library pre-established, determine that PCCP pipeline to be detected periphery is pre-
Stress wire number of breaks.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein
Before control instruction transmitted by magnetic excitation device receiving control device, further includes:
According to geologic information around PCCP pipe design and construction information and construction site, pass through the side of numerical simulation
Formula establishes PCCP pipe detection nominal data library.
The embodiment of the present invention bring it is following the utility model has the advantages that
In PCCP pipeline compressor wire number of breaks detection system provided in an embodiment of the present invention, comprising: swash in magnetic field
Transmitting apparatus, signal receiving device and control device;Wherein, magnetic excitation device and signal receiving device are respectively arranged to be detected
It is detected either one or two of in PCCP pipeline in section at two symmetrical inner wall of the pipes;Magnetic excitation device, for receiving control
The control instruction of device, and according to control instruction, low frequency alternating magnetic field is generated in PCCP pipeline to be detected, passes through low-frequency alternating
Magnetic field generates alternating current in the compressor wire and interior steel cylinder of PCCP pipeline to be detected periphery;Signal receiving device is used for
The electric signal of the induced current and/or induced electromotive force that are generated in acquisition compressor wire and interior steel cylinder by alternating current;Control
Device processed calculates the magnetic permeability value in detection section according to induced current and/or the electric signal of induced electromotive force, and according to magnetic
Conductivity value and the PCCP pipe detection nominal data library pre-established determine that PCCP pipeline to be detected periphery compressor wire is broken
Quantity.The present invention is able to detect the fracture of wire quantity of the compressor wire of the periphery PCCP on section, the detection system have quantification,
The advantages that not damaged, high-efficient, at low cost, convenient and efficient.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is PCCP booster reason schematic diagram in the prior art;
Fig. 2 is a kind of structure for PCCP pipeline compressor wire number of breaks detection system that the embodiment of the present invention one provides
Schematic diagram;
Fig. 3 is the knot for another PCCP pipeline compressor wire number of breaks detection system that the embodiment of the present invention one provides
Structure schematic diagram;
Fig. 4 is a kind of process of PCCP pipeline compressor wire number of breaks detection method provided by Embodiment 2 of the present invention
Figure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Not yet form the accurate detection means for being directed to PCCP pipe periphery compressor wire fracture of wire quantity both at home and abroad at present, also not
See about detection PCCP pipe periphery compressor wire broken wires quantifier elimination achievement report.Based on this, the embodiment of the present invention is provided
A kind of PCCP pipeline compressor wire number of breaks detection system and method, are able to detect the prestress steel of the periphery PCCP on section
The fracture of wire quantity of silk, the detection system have many advantages, such as quantification, not damaged, high-efficient, at low cost, convenient and efficient.
For convenient for understanding the present embodiment, first to a kind of PCCP pipeline prestressing force disclosed in the embodiment of the present invention
Steel wire fracture quantity detection system describes in detail.
Embodiment one:
It is shown in Figure 2 the embodiment of the invention provides a kind of PCCP pipeline compressor wire number of breaks detection system,
The system includes: magnetic excitation device 11, signal receiving device 12 and control device 13.
Wherein, magnetic excitation device 11 and signal receiving device 12 either one or two of are respectively arranged in PCCP pipeline to be detected
It detects in section at two symmetrical inner wall of the pipes;Magnetic excitation device 11, for the control instruction of receiving control device 13,
And according to control instruction, low frequency alternating magnetic field is generated in PCCP pipeline to be detected, by low frequency alternating magnetic field to be detected
Alternating current is generated in the compressor wire and interior steel cylinder of PCCP pipeline periphery;Signal receiving device 12, for acquiring prestressing force
The electric signal of the induced current and/or induced electromotive force that are generated in steel wire and interior steel cylinder by alternating current;Control device 13
According to induced current and/or the electric signal of induced electromotive force, calculate the magnetic permeability value in detection section, and according to magnetic permeability value and
The PCCP pipe detection nominal data library pre-established, determines PCCP pipeline to be detected periphery compressor wire number of breaks.
According to magnetoelasticity physical property and PCCP pipeline configuration feature, in PCCP pipeline, by magnetic excitation device
11 close to PCCP pipeline to be detected inner wall, generate low frequency alternating magnetic field, by low frequency alternating magnetic field in PCCP pipeline to be detected
Alternating current is generated in the compressor wire of periphery and interior steel cylinder.The other side is certain apart from magnetic excitation device 11 in pipeline again
The position of distance, setting signal reception device 12 receive sense caused by the alternating current in compressor wire and interior steel cylinder
Electric current and induced electromotive force signal are answered, above-mentioned signal is sent to control device 13 by signal receiving device 12, so that control be made to fill
It sets 13 and is inferred to magnetic permeability value.Specifically, using the detection coil detection in signal receiving device 12 by compressor wire and interior
2 electromagnetic fields that induced current in steel cylinder generates, so that control device 13 be made to be inferred to PCCP pipeline periphery compressor wire
With the magnetic permeability value of interior steel cylinder.
After compressor wire fracture of wire, prestressing force is released, and according to magnetoelasticity, the magnetic conductivity of steel wire changes, because
This, control device 13, can be further according to the magnetic permeability value measured and the PCCP pipe detection nominal data library pre-established
It is inferred to detect the fracture of wire quantity of the compressor wire of PCCP pipe periphery on section.
Above-mentioned PCCP pipe detection nominal data library is to pass through computer numerical based on PCCP design, construction, geologic information
The database that the nominal data that simulation obtains is constituted, the PCCP pipeline compressor wire number of breaks detection system have quantitative
The advantages that changing, be not damaged, high-efficient, at low cost, convenient and efficient.
In another implementation, above-mentioned control device 13 specifically includes: control module, data acquisition module and data
Analysis module, it is shown in Figure 3.
Wherein, control module, for sending control instruction to magnetic excitation device 11;Data acquisition module, for receiving
The electric signal of induced current transmitted by signal receiving device 12 and/or induced electromotive force, and analog-to-digital conversion is carried out to electric signal
And filtering processing, the digital signal that processing obtains is sent to data analysis module;Data analysis module, according to digital signal and
The PCCP pipe detection nominal data library pre-established, determines PCCP pipeline to be detected periphery compressor wire number of breaks.
In addition, above-mentioned control module is also used to control magnetic excitation device 11, signal receiving device 12, data acquisition module
Block, data analysis module carry out orderly work.
It include: coil in above-mentioned magnetic excitation device 11 and signal receiving device 12.The axis of coil with it is to be detected
The axis of PCCP pipeline is parallel.The positional relationship of above-mentioned signal receiving device 12 and magnetic excitation device 11 is, based on to be detected
The center of PCCP pipeline, vertical line are symmetrical.
After the above-mentioned control instruction transmitted by the control module in receiving control device 13 of magnetic excitation device 11, generate
Low frequency alternating magnetic field, that is, control module by power supply to magnetic excitation device 11 power after, magnetic excitation device 11 can be made
Low frequency alternating electromagnetic field is generated in PCCP is managed.Signal receiving device 12 is in the same of PCCP pipe with magnetic excitation device 11
It detects in section, and is symmetrical arranged relative to PCCP tube hub, and in signal receiving device 12 and magnetic excitation device 11
The axis of coil is parallel with PCCP conduit axis to be detected.Signal receiving device 12 is for receiving target detection section part, PCCP
Induced current and/or induced electromotive force signal caused by interior steel cylinder and periphery compressor wire.
Above-mentioned control device 13 further include: information recording device.Information recording device is connect with data acquisition module;Information
Memory device is stored for the electric signal to induced current transmitted by data acquisition module and/or induced electromotive force.
Specifically, the data acquisition module in control device 13, receives induction received in signal receiving device 12
Electric current and/or induced electromotive force signal, and by built-in " electricity-number " analog-digital commutator by induced current and/or induced electricity
Electromotive force signal is converted to digital signal, and digital signal is then carried out low channel filtering, is finally stored in filtered data and remembers
Recall in storage component, that is, in above- mentioned information memory device.
Data analysis module carries out mathematical analysis according to filtered signal, obtains the magnetic permeability value of each detection section,
The PCCP pipe detection nominal data library that last basis pre-establishes, determines final fracture of wire quantity result.
Above-mentioned control device 13 as a preferred implementation manner, further include: wireless communication module.Control device 13 passes through
Wireless communication module, by the electric signal of induced current and/or induced electromotive force, digital signal, magnetic permeability value and/or to be detected
PCCP pipeline periphery compressor wire number of breaks is sent to background server, so that background server passes through human-computer interaction interface
It is shown.
Above-mentioned wireless communication module includes: Ethernet RJ45 module, WIFI module, bluetooth module, NB-IOT module, 3G/
At least one of 4G module.
Compared with prior art, system provided by the embodiment of the present invention has the advantage that
1) it is based on magnetoelasticity, provides effective detection mode for PCCP pipeline periphery compressor wire number of breaks,
Detection target is some section of pipeline, and to pipeline without any damage in detection process, testing result is simple and clear.
2) can quantification obtain PCCP pipeline periphery compressor wire number of breaks, mention for engineering reparation, operation and replacement
For important reference frame.
3) it is detected in PCCP pipeline, detection efficiency is high, has advantage at low cost, convenient and efficient.
Embodiment two:
The embodiment of the present invention provides a kind of PCCP pipeline compressor wire number of breaks detection method, and this method is applied to such as
In PCCP pipeline compressor wire number of breaks detection system described in embodiment one, PCCP pipeline compressor wire number of breaks
Detection system includes: magnetic excitation device, signal receiving device and control device;Magnetic excitation device and signal receiving device point
It either one or two of is not set in PCCP pipeline to be detected in detection section at two symmetrical inner wall of the pipes;
It is shown in Figure 4, this method comprises:
S101: control instruction transmitted by magnetic excitation device receiving control device, and according to control instruction, to be detected
Low frequency alternating magnetic field is generated in PCCP pipeline, by low frequency alternating magnetic field in the compressor wire of PCCP pipeline to be detected periphery and
Alternating current is generated in interior steel cylinder.
S102: the induced current generated in signal receiving device acquisition compressor wire and interior steel cylinder by alternating current
And/or the electric signal of induced electromotive force.
S103: control device calculates the magnetic in detection section according to induced current and/or the electric signal of induced electromotive force
Conductivity value, and according to magnetic permeability value and the PCCP pipe detection nominal data library pre-established, it determines outside PCCP pipeline to be detected
All compressor wire number of breaks.
In addition, before the control instruction transmitted by magnetic excitation device receiving control device, it is further comprising the steps of:
According to geologic information around PCCP pipe design and construction information and construction site, pass through the side of numerical simulation
Formula establishes PCCP pipe detection nominal data library.
According to magnetoelasticity, when the external mechanical load that ferrimagnet is born changes, internal magnetization is strong
Degree (magnetic conductivity) will change.Therefore, when fracture of wire occurs for the compressor wire of PCCP pipe periphery, prestressing force will be released,
The magnetic conductivity of compressor wire and interior steel cylinder will change after release.If there are a low frequency alternating magnetic fields for steel duct
When, alternating current will be generated in compressor wire and interior steel cylinder, the variation of above-mentioned magnetic conductivity is also led to by compressor wire
And the induced magnetic field that the alternating current in interior steel cylinder generates changes.It therefore can be by measuring another nearby coil (letter
Number reception device) in induced current and electromotive force, and then obtain the magnetic permeability value of quantification.Finally by magnetic permeability value and calibration
Database compares, so that it may be inferred to the fracture of wire quantity of the compressor wire of PCCP pipe periphery.
The computer program of PCCP pipeline compressor wire number of breaks detection method provided by the embodiment of the present invention produces
Product, the computer readable storage medium including storing the executable non-volatile program code of processor, said program code
Including instruction can be used for executing previous methods method as described in the examples, specific implementation can be found in system embodiment, herein
It repeats no more.
The flow chart and block diagram in the drawings show multiple embodiment method and computer program products according to the present invention
Architecture, function and operation in the cards.In this regard, each box in flowchart or block diagram can represent one
A part of module, section or code, a part of the module, section or code include it is one or more for realizing
The executable instruction of defined logic function.It should also be noted that in some implementations as replacements, function marked in the box
It can also can occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually be substantially parallel
Ground executes, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that block diagram
And/or the combination of each box in flow chart and the box in block diagram and or flow chart, it can the function as defined in executing
Can or the dedicated hardware based system of movement realize, or can come using a combination of dedicated hardware and computer instructions real
It is existing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features;And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of PCCP pipeline compressor wire number of breaks detection system characterized by comprising magnetic excitation device, letter
Number reception device and control device;
The magnetic excitation device and the signal receiving device either one or two of are respectively arranged in PCCP pipeline to be detected detection
In section at two symmetrical inner wall of the pipes;
The magnetic excitation device, for receiving the control instruction of the control device, and according to the control instruction, described
Low frequency alternating magnetic field is generated in PCCP pipeline to be detected, by the low frequency alternating magnetic field in the PCCP pipeline to be detected periphery
Compressor wire and interior steel cylinder in generate alternating current;
The signal receiving device, for acquiring the sense generated in the compressor wire and interior steel cylinder by the alternating current
Answer the electric signal of electric current and/or induced electromotive force;
The control device calculates in the detection section according to the induced current and/or the electric signal of induced electromotive force
Magnetic permeability value determine described to be checked and according to the magnetic permeability value and the PCCP pipe detection nominal data library pre-established
Survey PCCP pipeline periphery compressor wire number of breaks.
2. system according to claim 1, which is characterized in that the control device includes: control module, data acquisition module
Block and data analysis module;
The control module, for sending the control instruction to magnetic excitation device;
The data acquisition module, for receiving the induced current and/or induced electricity transmitted by the signal receiving device
The electric signal of kinetic potential, and analog-to-digital conversion and filtering processing are carried out to the electric signal, the digital signal that processing obtains is sent to
The data analysis module;
The data analysis module, according to the digital signal and the PCCP pipe detection nominal data library pre-established,
Determine PCCP pipeline to be detected periphery compressor wire number of breaks.
3. system according to claim 1, which is characterized in that in the magnetic excitation device and the signal receiving device
It include: coil.
4. system according to claim 3, which is characterized in that the axis of the coil and the PCCP pipeline to be detected
Axis is parallel.
5. system according to claim 2, which is characterized in that the control device further include: wireless communication module;
The control device is by the wireless communication module, by the electric signal of the induced current and/or induced electromotive force, institute
It states after digital signal, the magnetic permeability value and/or PCCP pipeline to be detected periphery compressor wire number of breaks be sent to
Platform server, so that the background server is shown by human-computer interaction interface.
6. system according to claim 5, which is characterized in that the wireless communication module include: Ethernet RJ45 module,
At least one of WIFI module, bluetooth module, NB-IOT module, 3G/4G module.
7. system according to claim 2, which is characterized in that the control device further include: information recording device;
The information recording device is connect with the data acquisition module;
The information recording device, for the induced current and/or induction electric transmitted by the data acquisition module
The electric signal of gesture is stored.
8. system according to claim 1, which is characterized in that the signal receiving device and the magnetic excitation device
Positional relationship is that, based on the center of the PCCP pipeline to be detected, vertical line is symmetrical.
9. a kind of PCCP pipeline compressor wire number of breaks detection method, which is characterized in that the method is applied to such as right
It is required that in the described in any item PCCP pipeline compressor wire number of breaks detection systems of 1-8, the PCCP pipeline prestress steel
Silk number of breaks detection system includes: magnetic excitation device, signal receiving device and control device;The magnetic excitation device and
The signal receiving device either one or two of is respectively arranged in PCCP pipeline to be detected two symmetrical pipelines in detection section
At inner wall;
The described method includes:
Control instruction transmitted by magnetic excitation device receiving control device, and according to the control instruction, described to be detected
Low frequency alternating magnetic field, pre- the answering by the low frequency alternating magnetic field in the PCCP pipeline to be detected periphery are generated in PCCP pipeline
Alternating current is generated in power steel wire and interior steel cylinder;
The signal receiving device acquires the induced electricity generated in the compressor wire and interior steel cylinder by the alternating current
The electric signal of stream and/or induced electromotive force;
The control device calculates in the detection section according to the induced current and/or the electric signal of induced electromotive force
Magnetic permeability value determine described to be checked and according to the magnetic permeability value and the PCCP pipe detection nominal data library pre-established
Survey PCCP pipeline periphery compressor wire number of breaks.
10. according to the method described in claim 9, it is characterized in that, being sent out in the magnetic excitation device receiving control device
Before the control instruction sent, further includes:
It is built by way of numerical simulation according to geologic information around PCCP pipe design and construction information and construction site
Stand the PCCP pipe detection nominal data library.
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