CN205538784U - Catch electrode chain fixing device suitable for different pipe diameters - Google Patents
Catch electrode chain fixing device suitable for different pipe diameters Download PDFInfo
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- CN205538784U CN205538784U CN201620077098.5U CN201620077098U CN205538784U CN 205538784 U CN205538784 U CN 205538784U CN 201620077098 U CN201620077098 U CN 201620077098U CN 205538784 U CN205538784 U CN 205538784U
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Abstract
The utility model provides a catch electrode chain fixing device suitable for different pipe diameters, belongs to pipeline nondestructive testing technique equipment field. Including fixing a plurality of seizure electrodes on the pipeline that awaits measuring (1) surface, its characterized in that: the cover is equipped with many electrode locating strip (4) side by side on the pipeline that awaits measuring (1), and electrode locating strip (4) are caught the electrode and are fixed in proper order on catching electrode fixed link strip including catching electrode fixed link strip. In this catch electrode chain fixing device suitable for different pipe diameters, realized that will catch the electrode with non - welded form fixes on the surface of awaiting measuring the pipeline, electrode welding machine various drawbacks when fixed have been avoided catching among the prior art, it is simultaneously applicable in the pipeline that awaits measuring of different pipe diameters, through establishing electrode locating strip and tension band formation elasticity closed loop cover on the pipeline surface of awaiting measuring, consequently, can be applicable to the different pipelines that awaits measuring, the range of application is wider, simultaneously can guarantee to catch the electrode and await measuring to have good contact between the pipeline.
Description
Technical field
A kind of seizure electrode chain type fixing device being applicable to different tube diameters, belongs to pipeline Dynamic Non-Destruction Measurement apparatus field.
Background technology
At present, commonly used resistance probe method and the corrosion condition of polarization sonde method on-line monitoring pipeline, but these methods can only carry out indirect homogeneous corrosion detection, and tube wall is had damage, maintenance cost and parking start-up cost are higher simultaneously, and local corrosion great to harmfulness is helpless.Utilize electric field fingerprint method to carry out the detection of corrosive pipeline, have and measure direct, precision and reliability advantage high, adaptable, and to tube wall not damaged.
The general principle of electric field fingerprint method is: at the perishable place of pipe under test, welding catches electrode, after having welded, catching electrode, pipe under test is applied big current signal, gather the output voltage catching electrode when pipeline does not occurs corrosion as the reference value of this pipe under test.After the equipment for the treatment of runs a period of time, by catching electrode measurement metal structure voltage characteristic slight change, the voltage characteristic recorded is compared with reference value during zero defect structure, thus judge because of defects such as metal loss, crackle or grooves that corrosion causes.
The mode of the most commonly used welding will catch electrode welding on the surface of pipe under test, by the way of welding, there are following defect:
1, welding is higher to welding equipment requirement, and according to different pipeline materials and electrode material, welding equipment requires difference, and welding condition is different, probes into relatively difficult one by one；For indoor construction, some pipeline present positions are narrow and small, welding operation difficulty, even cannot weld, greatly limit the range of application of technology；Accordingly, for field construction, power supply sets up inconvenience, and welding equipment heaviness can not be constructed flexibly, also greatly limit promoting the use of of this technology.These defects improve the installation cost of device while bringing very burden to site operation.
2, use welding connecting mode, seizure electrode and pipe under test are welded together, although degree is smaller, but itself be a kind of destruction to pipe under test, relatively big for sheet-metal duct hazard ratio, run counter to the principle of Non-Destructive Testing to a certain extent.
3, the pipe detection such as the technology application direction of electric field fingerprint method, predominantly petrochemical industry, one of advantage of this technology is that device need not stop production, but welding easily produces naked light, is not suitable for operating under high-risk environment.
4, using welding manner, it is impossible to ensure that each welding point is completely the same, the welding contact resistance being consequently formed will be different, and small resistance the change of divergence will significantly affect the collection of micro voltage signal, limit the high precision test of voltage signal.
5, catch electrode and structure welding joint fastness to be measured has to be detected, easily form stress simultaneously at welding point and concentrate, affect pressure piping safety；Welding point is easier corrosion simultaneously, and anticorrosion requires higher.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, there is provided a kind of form with non-solder will catch electrode and be fixed on the surface of pipe under test, avoid and prior art catches various drawbacks when electrode welding machine is fixed, be applicable to the seizure electrode chain type fixing device being applicable to different tube diameters that the pipe under test of different tube diameters is measured simultaneously.
The utility model solves its technical problem and be the technical scheme is that this is applicable to the seizure electrode chain type fixing device of different tube diameters, including the some seizure electrodes being fixed on pipe under test surface, it is characterized in that: in pipe under test, be arranged with many strip electrodes positioning strip side by side, electrode positioning strip includes that catching electrode fixes chain, and seizure electrode is fixed on seizure electrode and fixes on chain.
Preferably, described electrode positioning strip also includes tension band, tension band with catch electrode and fix chain two ends and connect the elastic closed loop of formation.
Preferably, described seizure electrode is fixed chain and is included joint first chain link and be connected to some joints second chain link of the first link end in turn, and tension band is simultaneously connected with the first chain link and the end of final section the second chain link.
Preferably, the first described chain link includes the first chain link inner panel and is separately fixed at the first chain link outside plate of its both sides；First chain link outside plate includes the horizontal segment at middle part and one section of segmental arc being bent to form in the same direction at the two ends of horizontal segment, and on the first chain link inner panel, the radial direction along pipe under test offers seizure electrode fixing holes；The segmental arc of both sides the first chain link outside plate axially offers outside plate connecting hole along pipe under test.
Preferably, in the first described chain link outside plate, it is positioned at the segmental arc curvature at horizontal segment two ends and arc length is equal and is integrated setting with horizontal segment.
Preferably, the second described chain link includes the second chain link inner panel and is separately fixed at the second chain link outside plate of its both sides, second chain link inner panel and the second chain link outside plate all include the horizontal segment at middle part and are arranged on the segmental arc of horizontal segment one end, and the segmental arc of the second chain link inner panel and the second chain link outside plate is oppositely arranged on the two ends of the second chain link respectively；The segmental arc of the second chain link inner panel all axially offers along pipe under test outside plate connecting hole, the segmental arc of the second chain link inner panel axially offers along pipe under test inner panel connecting hole；On the second chain link inner panel horizontal segment, the radial direction along pipe under test offers seizure electrode fixing holes.
Preferably, in the second described chain link, curvature and the arc length of the segmental arc of the second chain link inner panel and the second chain link outside plate are the most equal, and segmental arc horizontal segment respective with it respectively is integrated setting.
Preferably, being additionally provided with two along pipe under test axially across the alignment pin of electrode positioning strip, the point of entrance of alignment pin is positioned at tension band and the junction catching electrode and fixing chain two ends.
Compared with prior art, the utility model is had the beneficial effect that
1, originally be applicable to the seizure electrode chain type fixing device of different tube diameters, seizure electrode is fixed by arranging electrode positioning strip, achieve seizure electrode and be fixed on pipe under test surface with the form of non-solder, therefore avoid and prior art catches various drawbacks when electrode welding machine is fixed.
2, being set in pipe under test surface by electrode positioning strip and tension band are formed elastic closed loop, therefore go for different pipe under test, range of application is wider, can ensure that have good contacting between seizure electrode and pipe under test simultaneously.
3, by arranging alignment pin, in achieving electrode positioning strip, catch electrode fix while chain and tension band be reliably connected, it is ensured that electrode positioning strip does not haves dislocation in installation process.
Accompanying drawing explanation
Fig. 1 is the seizure electrode chain type fixture structure schematic diagram being applicable to different tube diameters.
Fig. 2 is the seizure electrode chain type fixing device right view being applicable to different tube diameters.
Fig. 3 is seizure electrode chain type fixing device the first link configuration schematic diagram being applicable to different tube diameters.
Fig. 4 is seizure electrode chain type fixing device the second link configuration schematic diagram being applicable to different tube diameters.
Wherein: 1, pipe under test 2, tension band 3, alignment pin 4, electrode positioning strip the 5, first chain link the 6, second chain link 7, outside plate connecting hole the 8, first chain link inner panel 9, seizure electrode fixing holes the 10, first chain link outside plate the 11, second chain link inner panel the 12, second chain link outside plate 13, inner panel connecting hole.
Detailed description of the invention
Fig. 1 ~ 4 are most preferred embodiments of the present utility model, and 1 ~ 4 pair of the utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, it is adaptable to the seizure electrode chain type fixing device of different tube diameters, including the electrode positioning strip 4 being set in pipe under test 1 for fixing seizure electrode, electrode positioning strip 4 is a plurality of along being axially disposed with of pipe under test 1.Between the many strip electrodes positioning strip 4 being arranged side by side, be additionally provided with at least one along the axially arranged alignment pin 3 of pipe under test 1, alignment pin 3 simultaneously along pipe under test 1 axially across all electrode positioning strips 4 being arranged side by side.By arranging alignment pin 3, it is ensured that electrode positioning strip 4 after set-up is complete, does not haves dislocation.
As shown in Figure 2, electrode positioning strip 4 includes that one section of tension band 2 and one section of seizure electrode are fixed chain head and the tail and connected composition, seizure electrode is fixed on seizure electrode and fixes on chain, owing to tension band 2 has certain elasticity, thereby ensure that the seizure electrode on electrode positioning strip 4 can be close to pipe under test 1, ensure that good contact, electrode positioning strip 4 can be made to be applicable to the pipe under test of different tube diameters simultaneously, range of application is wider.Originally be applicable to the seizure electrode chain type fixing device of different tube diameters, above-mentioned alignment pin 3 is provided with two, lay respectively at tension band 2 and seizure electrode fixes the position that chain connects, after alignment pin 3 is axially across all electrode positioning strips 4, it is simultaneously achieved the connection that in every strip electrode positioning strip 4, tension band 2 and seizure electrode are fixed between chain.Above-mentioned seizure electrode is fixed chain and is made up of joint first chain link 5 and some joints the second chain link 6 connection being connected to the first chain link 5 end in turn, and tension band 2 is simultaneously connected with the first chain link 5 and the end of final section the second chain link 6.
As it is shown on figure 3, the first chain link 5 includes that one piece of first chain link inner panel 8 and two piece of first chain link outside plate 10, two piece of first chain link outside plate 10 are separately fixed at the both sides of the first chain link inner panel 8 by screw.First chain link outside plate 10 includes the horizontal segment at middle part, bends downwards one section of segmental arc of formation, the segmental arc curvature at horizontal segment two ends and arc length is equal and is integrated setting with horizontal segment respectively at the two ends of horizontal segment.The mating shapes of the horizontal segment in the middle part of the first chain link inner panel 8 being arranged between two piece of first chain link outside plate 10 and the first chain link outside plate 10.After the first chain link outside plate 10 and the first chain link inner panel 8 having been fixed by screw, the first chain link inner panel 8 is erected at the surface of pipe under test 1 by the segmental arc of the first chain link outside plate 10 of its both sides.Seizure electrode fixing holes 9 is offered along the radial direction of pipe under test 1 in the center of the first chain link inner panel 8, catch electrode (being not drawn in figure) and realize fixing by catching electrode fixing holes 9, catch electrode and catch can use between electrode fixing holes 9 to threaded and wait various ways to realize fixing.All axially offering outside plate connecting hole 7 along pipe under test 1 on the segmental arc of the first chain link outside plate 10 of the first chain link inner panel 8 both sides, outside plate connecting hole 7 is used for connecting tension band 2 or the second chain link 6.
As shown in Figure 4, the second chain link 6 includes that one piece of second chain link inner panel 11 and two piece of second chain link outside plate 12, two piece of second chain link outside plate 12 are separately fixed at the both sides of the second chain link inner panel 11 by screw.Second chain link outside plate 12 includes the horizontal segment at middle part, one section of segmental arc of formation respectively is bent downwards in one end of horizontal segment, the segmental arc curvature of two piece of second chain link outside plate 12 and arc length is equal and is integrated setting with horizontal segment, and the segmental arc of second chain link inner panel 11 both sides the second chain link outside plate 12 is positioned at same one end of the second chain link inner panel 11.
Second chain link inner panel 11 include equally horizontal segment and with the segmental arc being positioned at horizontal segment one end, the curvature of the segmental arc of the second chain link inner panel 11 is identical with the curvature of the second chain link outside plate 12 segmental arc and arc length with arc length, and the segmental arc of the second chain link inner panel 11 is positioned at the other end relative with its both sides the second chain link outside plate 12 segmental arc.After the second chain link outside plate 12 and the second chain link inner panel 8 having been fixed by screw, the segmental arc of the horizontal segment of the second chain link inner panel 11 himself and the second chain link outside plate 12 is erected at the surface of pipe under test 1.Seizure electrode fixing holes 9 is offered along the radial direction of pipe under test 1 in the center of the second chain link inner panel 11 horizontal segment, catch electrode (being not drawn in figure) and realize fixing by catching electrode fixing holes 9, catch electrode and catch can use between electrode fixing holes 9 to threaded and wait various ways to realize fixing.All axially offering outside plate connecting hole 7 along pipe under test 1 on the segmental arc of the first chain link outside plate 10 of the second chain link inner panel 11 both sides, the outside plate connecting hole 7 on the second chain link inner panel 11 is used for connecting tension band 2 or the second chain link 6；Axially offering inner panel connecting hole 13 along pipe under test 1 on the segmental arc of the second chain link inner panel 11, inner panel connecting hole 13 is for connecting the first chain link 5 or the second chain link 6 of a upper joint.
Specific operation process and operating principle are as follows:
First the arrangement gathering array needing to arrange is determined according to testing scheme, so that it is determined that catch line number and the columns of electrode, originally be applicable to the seizure electrode chain type fixing device of different tube diameters, catching the line number of electrode and columns can be embodied by the sum of the first chain link 5 and the second chain link 6 in the quantity of electrode positioning strip 4 and every strip electrode positioning strip 4 respectively.The first chain link 5 and connection of the second chain link 6 is carried out after the quantity of the first chain link 5 and the second chain link 6 in determining every strip electrode positioning strip 4:
When carrying out the connection of two joint the second chain links 6, in later section the second chain link 6, the segmental arc of the second chain link inner panel 11 stretches between two piece of second chain link outside plate 12 of previous joint the second chain link 6, inner panel connecting hole 13 with on the outside plate connecting hole of a joint second chain link outside plate 12 align and be attached afterwards, complete the connection of two joint the second chain links 6, complete the connection of whole piece the second chain link 6 further.Then the segmental arc of the second chain link inner panel 11 in first segment the second chain link 6 is stretched between two first chain link outside plates 10 of the first chain link 5, it is attached afterwards the outside plate connecting hole 7 of its inner panel connecting hole 13 with the first chain link 5 is alignd, thus completes whole piece seizure electrode in electrode positioning strip 4 and fix the connection of chain.
After the seizure electrode in electrode positioning strip 4 being fixed chain and has connected, carry out catching electrode and fix the connection of chain and tension band 2, first the two ends of tension band 2 are respectively protruding between two first chain link outside plates 10 of the first chain link 5 and between two piece of second chain link outside plate 12 of final section the second chain link 6, and outside plate connecting hole 7 with the first chain link 5 and the second chain link 6 aligns respectively by the connecting hole being opened on tension band 2, then sequentially passed through by two alignment pin 3, the connection achieving tension band 2 and catch electrode and fix chain, thus complete the setting of pipe under test 1 surface electrode positioning strip 4.
After electrode positioning strip 4 is provided with, it is fixed on catching electrode one by one on the first chain link 5 and second chain link 6 of every strip electrode positioning strip 4, complete after ensureing to catch electrode and pipe under test 1 surface reliable contacts and catch the fixing of electrode, then according to test request, the extent of corrosion of pipe under test 1 is tested.
The above, it it is only preferred embodiment of the present utility model, being not the restriction that the utility model is made other form, any those skilled in the art are changed possibly also with the technology contents of the disclosure above or are modified as the Equivalent embodiments of equivalent variations.But every without departing from technical solutions of the utility model content, any simple modification, equivalent variations and remodeling above example made according to technical spirit of the present utility model, still fall within the protection domain of technical solutions of the utility model.
Claims (8)
1. the seizure electrode chain type fixing device being applicable to different tube diameters, including the some seizure electrodes being fixed on pipe under test (1) surface, it is characterized in that: in pipe under test (1), be arranged with many strip electrodes positioning strip (4) side by side, electrode positioning strip (4) includes that catching electrode fixes chain, and seizure electrode is fixed on seizure electrode and fixes on chain.
The seizure electrode chain type fixing device being applicable to different tube diameters the most according to claim 1, it is characterised in that: described electrode positioning strip (4) also includes tension band (2), tension band (2) with catch electrode and fix chain two ends and connect the elastic closed loop of formation.
The seizure electrode chain type fixing device being applicable to different tube diameters the most according to claim 1 and 2, it is characterized in that: described seizure electrode is fixed chain and included a joint the first chain link (5) and be connected to some joints the second chain link (6) of the first chain link (5) end in turn, and tension band (2) is simultaneously connected with the first chain link (5) and the end of final section the second chain link (6).
The seizure electrode chain type fixing device being applicable to different tube diameters the most according to claim 3, it is characterised in that: described the first chain link (5) includes the first chain link inner panel (8) and is separately fixed at the first chain link outside plate (10) of its both sides；First chain link outside plate (10) includes the horizontal segment at middle part and one section of segmental arc being bent to form in the same direction at the two ends of horizontal segment, and on the first chain link inner panel (8), radial direction along pipe under test (1) offers and catches electrode fixing holes (9)；The segmental arc of both sides the first chain link outside plate (10) axially offers outside plate connecting hole (7) along pipe under test (1).
The seizure electrode chain type fixing device being applicable to different tube diameters the most according to claim 4, it is characterised in that: in the first described chain link outside plate (10), it is positioned at the segmental arc curvature at horizontal segment two ends and arc length is equal and is integrated setting with horizontal segment.
The seizure electrode chain type fixing device being applicable to different tube diameters the most according to claim 3, it is characterized in that: described the second chain link (6) includes the second chain link inner panel (11) and is separately fixed at the second chain link outside plate (12) of its both sides, second chain link inner panel (11) and the second chain link outside plate (12) all include the horizontal segment at middle part and are arranged on the segmental arc of horizontal segment one end, and the segmental arc of the second chain link inner panel (11) and the second chain link outside plate (12) is oppositely arranged on the two ends of the second chain link (6) respectively；The segmental arc of the second chain link inner panel (11) all axially offers outside plate connecting hole (7) along pipe under test (1), the second segmental arc connecting inner panel (11) axially offers inner panel connecting hole (13) along pipe under test (1)；On the second chain link inner panel (11) horizontal segment, the radial direction along pipe under test (1) offers seizure electrode fixing holes (9).
The seizure electrode chain type fixing device being applicable to different tube diameters the most according to claim 6, it is characterized in that: in described the second chain link (6), curvature and the arc length of the segmental arc of the second chain link inner panel (11) and the second chain link outside plate (12) are the most equal, and segmental arc horizontal segment respective with it respectively is integrated setting.
The seizure electrode chain type fixing device being applicable to different tube diameters the most according to claim 2, it is characterized in that: be additionally provided with two along pipe under test (1) axially across the alignment pin (3) of electrode positioning strip (4), the point of entrance of alignment pin (3) is positioned at tension band (2) and the junction catching electrode and fixing chain two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620077098.5U CN205538784U (en) | 2016-01-26 | 2016-01-26 | Catch electrode chain fixing device suitable for different pipe diameters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620077098.5U CN205538784U (en) | 2016-01-26 | 2016-01-26 | Catch electrode chain fixing device suitable for different pipe diameters |
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| CN205538784U true CN205538784U (en) | 2016-08-31 |
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| CN201620077098.5U Active CN205538784U (en) | 2016-01-26 | 2016-01-26 | Catch electrode chain fixing device suitable for different pipe diameters |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346417A (en) * | 2016-09-29 | 2017-01-25 | 中国船舶重工集团公司第七〇九研究所 | Rapid zigzag spring mounting device based on wave transmission performance |
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2016
- 2016-01-26 CN CN201620077098.5U patent/CN205538784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346417A (en) * | 2016-09-29 | 2017-01-25 | 中国船舶重工集团公司第七〇九研究所 | Rapid zigzag spring mounting device based on wave transmission performance |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190625 Address after: 100728 Chaoyangmen North Street, Chaoyang District, Chaoyang District, Beijing Co-patentee after: China Petroleum & Chemical Technology Co., Ltd. Shengli Oilfield Testing Center Patentee after: Sinopec Corp. Address before: 100728 Chaoyangmen North Street, Chaoyang District, Chaoyang District, Beijing Co-patentee before: China Petroleum & Chemical Technology Co., Ltd. Shengli Oilfield Testing Center Patentee before: Sinopec Corp. Co-patentee before: China Petroleum University (East China) |
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| TR01 | Transfer of patent right |