CN101330797A - Circuit board structure of pipe leakage detector - Google Patents
Circuit board structure of pipe leakage detector Download PDFInfo
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- CN101330797A CN101330797A CNA2007101190963A CN200710119096A CN101330797A CN 101330797 A CN101330797 A CN 101330797A CN A2007101190963 A CNA2007101190963 A CN A2007101190963A CN 200710119096 A CN200710119096 A CN 200710119096A CN 101330797 A CN101330797 A CN 101330797A
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Abstract
The invention provides a circuit board structure of a pipeline magnetic flux leakage corrosion detector for the on-line detection of the metal loss degree of a pipeline, which relates to the technical fields of the measurement of magnetic variables and the size of linear thickness, and the pipeline system. A circuit board is divided into a back master board and a sub board; the sub board is inserted in the slots (4) of a plurality of rows of processor boards on a bottom board (5) of the back master board; the back master board is divided into the middle bottom board (5) and circumferential wall boards; the electrical connection between the middle bottom board (5) and the circumferential wall boards is realized through an electric wire piece; the circumferential wall boards of the back master board are bent into an angle of 90 degrees, and the processor boards are arranged in the bent wall boards; the bottom board (5) is a spatial structure formed by connecting a supporting cross beam (17), a supporting board (11) and end covers (14) at both ends which are fixedly connected with the bottom board; the electrical connection between the bottom board and the exterior is realized thorough a plug (1) on the wall boards exposed out of the end covers (14); and the bottom board is mechanically connected with the exterior through a plurality of positioning pins on the end covers (14). The circuit board has the advantages of reasonable structure, reliable circuit connection, as well as convenient and fixable disassembly and assembly; furthermore, the circuit board structure is completely suitable for the application of the pipeline magnetic flux leakage corrosion detector in the oil gas environment.
Description
Technical field
The present invention is the pipe leakage corrosion detector board structure of circuit of online detection pipeline metal loss degree.Relate to measurement and the pipe-line system technical field of measuring magnetic variable, thickness linear dimension.
Background technology
All can there be corrosion to a certain degree in buried steel pipeline, the particularly service time steel pipe more of a specified duration of operation, for guaranteeing the buried pipeline security of operation, all wants regularly pipeline to be done online corrosion usually and detects.Corrosive pipeline detects the main Magnetic Flux Leakage Inspecting mode that adopts at present.With regard to Magnetic Flux Leakage Inspecting, except suitable complexity and huge detector motion carrier are arranged, large numbers of probes, electronic circuit and numerous and jumbled data acquisition unit must be arranged also, this just has a large amount of circuit boards.Wherein particularly back side motherboard is responsible for distribution signal and power line in whole main electronic module, is inserted in the circuit board that the main electronic module of following formation is arranged on the motherboard of the back side: main processor circuit plate, magnetic processor circuit board, non-magnetic processor circuit board, flash memory hard disk processor circuit board, earial drainage control circuit board.Back side motherboard is equipped with the commutator transformer stabilized voltage power supply, and these power supplys are obtained power supply from power brick, and gives other circuit supply of detector system.Be to use the braided wire bundle as plait in prior art, done a lot of problems like this, braided wire Shu Tiji is difficult to greatly hold; Because the inconsistency of braiding process can cause noise level inconsistent; Stress at tie point comes off them easily; Just may be in the production assembling process because the extrusion damage lead.
Summary of the invention
The objective of the invention is to invent reliable, convenient, the pipe leakage corrosion detector board structure of circuit flexibly of a kind of online detection pipeline metal loss degree.
The present invention is that circuit board is divided into back side motherboard and daughter board (processor plate 8) as shown in Figure 1, and daughter board is inserted on many rows processor plate slot 4 of back side motherboard base plate 5; Back side motherboard in the middle of being divided into base plate 5 and all around pay plate, base plate 5 with pay being electrically connected between the plate and use flexible board 3 electric wire sheets realization (see figure 1); 90 ° of the plate bendings of paying around the motherboard of the back side wrap in processor plate 8 wherein, base plate 5 is connected to stereochemical structure by the end cap 14 at the supporting traverse 17 that is connected with it, supporting bracket 11 and two ends, realize and outside being electrically connected by the plug of paying on the plate 1 that exposes end cap 14, realize and outside mechanical connection by a plurality of alignment pins on the end cap 14 9.
Specifically be to have the base plate 5 of a plurality of processor plate slots 4 to connect two plugs 1 and digital power 2 respectively by flexible board 3 all around, analog power 6, a plurality of processor plates 8 are inserted on the processor plate slot 4, two plugs 1 and the digital power 2 that connect respectively by flexible board 3 around the base plate 5,90 ° of analog power 6 bendings wrap in processor plate 8 wherein, two plugs 1 are in the relative layout of processor plate 8 side direction, digital power 2, analog power 6 is in the relative just dorsad layout of processor plate 8, base plate 5 is by the supporting traverse 17 that is connected with it, the pocket of electrons framework 7 at supporting bracket 11 and two ends, end cap 14 is connected to cylindrical structure, realize and outside being electrically connected by two plugs 1 that expose end cap 14, by digital power 2, the power supply that analog power 6 is realized processor plate 8 is by the mechanical connection of the 9 realization detector circuit plates of a plurality of alignment pins on the end cap 14.
For processor plate 8 inserts processor plate slot 4 back firm positions, circuit board lock 15 is arranged on the base plate 5 at corresponding each processor plate slot 4 two ends.
In order to power and good heat dissipation, to connect digital power 2, analog power 6 respectively by flexible board 3, and be fixed on the bearing cross beam 17.
Wherein base plate 5 (see figure 3)s be three circuit board installing holes 13 by the centre by screw fixings on metal profile 11, the edge of base plate 5 is bumped within the bearing cross beam 17 and circuit board gathering sill 16 that constitutes assembly, bearing cross beam 17 is connected with pocket of electrons framework 7, is connected to stereochemical structure at pocket of electrons framework 7 overcoat end caps 14; Because of this detector circuit plate must be packed in the protection tube, in general the protection tube with cylindrical shape for well, so this detector circuit plate and framework thereof will become the cylinder bodily form, and end cap 14 certain also be circular.
Wherein back side motherboard is a multilayer circuit board, and each aspect is appointed as various types of signals: analog signal, simulation ground, power supply, digital signal and digitally.The isolation that can provide between digital circuit and the analog circuit is provided like this, has been avoided switching noise.Because back side motherboard provides electric current for module in pocket of electrons, probe and the set of signals and mapping unit, so various fuse will be contained in above the motherboard of the back side, destroys the copper lead-in wire of back side motherboard to prevent short circuit current.
The two ends of back side motherboard are and being connected of Hai Bo Tyke socket 10, Hai Bo Tyke socket 10 metal bar pin behind is welded direct to above the motherboard of the back side and removes (Hai Bo Tyke socket has can be for the metal bar of welding, and there is the groove of containing scolding tin and wire the termination of rod) behind.
Structure so, the one, the flexible portion of back side motherboard makes it can inject main electronic module (see figure 2); The 2nd, daughter board all is inserted in above two plug sockets of motherboard main body, be fastened to the socket the inside, so when detector moves, they are unlikely to (also can use each daughter board upper end of spring handle to push down because of vibration drops out from the motherboard socket, those springs all are to be fastened to above the backbar), just can not bring out motherboard when pulling out daughter board, when inserting daughter board inside, just be difficult for having damaged toward the outside; The 3rd, DC power supply is installed in above the both wings of motherboard, and this arrangement is just fastening near backbar DC power supply, thereby rejects heat to the outside of module; One of them is the digital circuit power supply specially both wings, and another one is the analog circuit power supply specially; The switching noise that the cutting apart of this analog-and digital-circuit will reduce digital power is to the influence of analog circuit.
In some occasion, back side motherboard need directly carry the pocket of electrons module to power supply.For example, insert from the back door of pocket of electrons and drafting module comes to this when power supply is extracted at the Qianmen of pocket of electrons when power brick.So just require back side motherboard must have enough abilities for module in pocket of electrons, probe, the set of signals and the mapping unit required electric current is provided.
The fixed form of back side motherboard in main electronic module compressed link to each other with 11 edge of motherboard of motherboard by 13 as shown in Figure 3 by 17 and 11.
As seen, this detector circuit plate structure is reasonable, and circuit links reliable, and easy accessibility, flexible is fit to the pipe leakage corrosion detector utilization in the oil and gas environments fully.
Description of drawings
Fig. 1 back side mother board layout figure
The back side motherboard structure front view of Fig. 2 in main electronic module
The back side motherboard structure vertical view of Fig. 3 in main electronic module
1-plug 2-digital power wherein
3-flexible board 4-processor plate slot
5-base plate 6-analog power
7-pocket of electrons framework 8-processor plate
9-alignment pin 10-Hypertec joint
11-supporting bracket 12-battery case
13-circuit board installing hole 14-end cap
15-circuit board lock 16-circuit board gathering sill
The 17-supporting traverse
Embodiment
Embodiment. also the present invention is further illustrated with this example the specific embodiment of the present invention to be described.This example is the experiment structure of Φ 1016mm high definition pipe leakage corrosion detector circuit board, and it constitutes as Fig. 1, Fig. 2, shown in Figure 3.Because of this detector circuit plate must be packed in the protection tube, in general for well, so this detector circuit plate and framework thereof will become the cylinder bodily form, end cap 14 is certain also to be circular to the protection tube with cylindrical shape.The internal diameter of cylinder is 175mm, is the cylinder bodily form of 175mm so detector circuit plate and framework thereof will become external diameter.
Motherboard is made up of 5 parts and is respectively 1,2,3,4,6,1 be the Hypertec blank area it link to each other with the joint on the pressure hatch door, all all guide the pocket of electrons outside into thus to the signal and the power supply of outside, the 2nd, the DCDC transducer of simulation part, the 6th, the DCDC transducer of numerical portion, the digital power of system and analog power are separated from each other like this, to reduce system noise, the 3rd, flexible PCB, such 1,2,6 can both realize crooked the installation.
Claims (7)
1. the pipe leakage corrosion detector board structure of circuit of an online detection pipeline metal loss degree is characterized in that circuit board is divided into back side motherboard and daughter board, and daughter board is inserted on many rows processor plate slot [4] of back side motherboard base plate [5]; Back side motherboard in the middle of being divided into base plate [5] and all around pay plate, base plate [5] with pay being electrically connected between the plate and use the realization of flexible board [3] electric wire sheet; The plate of paying around the motherboard of the back side bends 90 ° with processor plate [8] therein, base plate [5] is connected to stereochemical structure by the end cap [14] at the supporting traverse that is connected with it [17], supporting bracket [11] and two ends, realize and outside being electrically connected by the plug of paying on the plate [1] that exposes end cap [14], by a plurality of alignment pins [9] on the end cap [14] and outside mechanical connection.
2. pipe leakage corrosion detector board structure of circuit according to claim 1, it is characterized in that having the base plate [5] of a plurality of processor plate slots [4] to connect two plugs [1] and digital power [2] respectively by flexible board [3] all around, analog power [6], a plurality of processor plates [8] are inserted in processor plate slot [4], two plugs [1] and digital power [2] that base plate [5] is connected respectively by flexible board [3] all around, 90 ° of analog power [6] bendings wrap in processor plate [8] wherein, two plugs [1] at processor plate [8] to relative layout, digital power [2], analog power [6] is in the relative just dorsad layout of processor plate [8], base plate [5] is by the supporting traverse that is connected with it [17], the pocket of electrons framework [7] at supporting bracket [11] and two ends, end cap [14] is connected to cylindrical structure, realize and outside being electrically connected by two plugs [1] that expose end cap [14], by digital power [2], analog power [6] is realized the power supply to processor plate [8], is realized the mechanical connection of detector circuit plate by a plurality of alignment pins [9] on the end cap [14].
3. pipe leakage corrosion detector board structure of circuit according to claim 1 and 2 is characterized in that circuit board lock [15] is arranged on the base plate [5] at corresponding each processor plate slot [4] two ends.
4. pipe leakage corrosion detector board structure of circuit according to claim 2 is characterized in that described digital power [2], analog power [6] are connected respectively by flexible board [3], and is fixed on the bearing cross beam [17].
5. pipe leakage corrosion detector board structure of circuit according to claim 1 and 2, it is characterized in that described base plate [5] be three circuit board installing holes [13] by the centre by screw fixings on metal profile [11], the edge of base plate [5] is bumped within the bearing cross beam [17] and circuit board gathering sill [16] that constitutes assembly, bearing cross beam [17] is connected with pocket of electrons framework [7], is connected to stereochemical structure at pocket of electrons framework [7] overcoat end cap [14]; Because of this detector circuit plate must be packed in the protection tube, in general the protection tube with cylindrical shape for well, so this detector circuit plate and framework thereof will become the cylinder bodily form, and end cap [14] certain also be circular.
6. pipe leakage corrosion detector board structure of circuit according to claim 1 is characterized in that described back side motherboard is a multilayer circuit board, and each aspect is appointed as various types of signals: analog signal, simulation ground, power supply, digital signal and digitally; The two ends of back side motherboard are connected with Hai Bo Tyke socket [10], and Hai Bo Tyke socket [10] metal bar pin behind goes above being welded direct to back side motherboard.
7. pipe leakage corrosion detector board structure of circuit according to claim 6 is characterized in that also installing on the motherboard of the back side the various fuses that module in promising pocket of electrons, probe and the set of signals and mapping unit provide electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101190963A CN100562213C (en) | 2007-06-20 | 2007-06-20 | Circuit board structure of pipe leakage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101190963A CN100562213C (en) | 2007-06-20 | 2007-06-20 | Circuit board structure of pipe leakage detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101330797A true CN101330797A (en) | 2008-12-24 |
| CN100562213C CN100562213C (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101190963A Active CN100562213C (en) | 2007-06-20 | 2007-06-20 | Circuit board structure of pipe leakage detector |
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| Country | Link |
|---|---|
| CN (1) | CN100562213C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575767A (en) * | 2013-11-23 | 2014-02-12 | 清华大学 | Electronic recorder unit of oil and gas pipeline defect inner-detector |
-
2007
- 2007-06-20 CN CNB2007101190963A patent/CN100562213C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575767A (en) * | 2013-11-23 | 2014-02-12 | 清华大学 | Electronic recorder unit of oil and gas pipeline defect inner-detector |
| CN103575767B (en) * | 2013-11-23 | 2016-03-30 | 清华大学 | Oil and gas pipes defect internal detector electronic recorder unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100562213C (en) | 2009-11-18 |
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Effective date of registration: 20170306 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corporation Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Address before: 100724 Beijing, Xicheng District, shop No. six Kang Street, No. six Patentee before: China National Petroleum Corporation Patentee before: China Petroleum and Natural Gas Pipeline Bureau |
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