CN202066839U - Flexible probe ring of pipeline guided wave detection system - Google Patents
Flexible probe ring of pipeline guided wave detection system Download PDFInfo
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- CN202066839U CN202066839U CN2010206853626U CN201020685362U CN202066839U CN 202066839 U CN202066839 U CN 202066839U CN 2010206853626 U CN2010206853626 U CN 2010206853626U CN 201020685362 U CN201020685362 U CN 201020685362U CN 202066839 U CN202066839 U CN 202066839U
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- air bag
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- probe module
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- 239000000523 sample Substances 0.000 title claims abstract description 150
- 238000001514 detection method Methods 0.000 title claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 210000001503 joint Anatomy 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 19
- 239000002775 capsule Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 12
- 238000010168 coupling process Methods 0.000 abstract description 12
- 238000005859 coupling reaction Methods 0.000 abstract description 12
- 230000001808 coupling effect Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000009411 base construction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000035939 shock Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The utility model relates to a flexible probe ring of pipeline guided wave detecting system. A plurality of probe module seats (7) and probe module pressing sheets (8) are axially arranged on the inner side of a steel ring (9) with a circular opening, and a probe module interface (6) is arranged at one end beside each probe module seat (7); the steel ring (9) is wrapped with an air bag belt (11) which is provided with a circular opening and is internally provided with an air bag (12), and the air bag belt (11) is wrapped with an outer covering layer (10) which is provided with a circular opening; a lemo is fixedly connected to the outer covering layer (10)TMThe connector seat (2) and the inflation inlet (4); each end of the openings of the steel ring (9), the airbag belting (11) and the outer covering layer (10) is connected with one end of the butt joint fixture (5); the probe module (1) is connected with the lemo on the probe ring (3) through a cableTMThe interface seat (2) is connected with the system host. The mechanical coupling device has the advantages of good mechanical coupling effect, light transportation and use, and low possibility of abrasion and damage.
Description
Technical field
The utility model is a kind of pipeline guided wave detection system flexible probe ring.Relate to hyperacoustic measurement and piping system technical field.
Background technology
The guided wave detection system can be used for the detection of defect of pipeline.But the sensor in the guided wave detection system need be coupled.In pipeline guided wave detection system,, therefore do not need couplant to be coupled, and only need mechanical couplings to get final product because the frequency of utilization of guided wave is low.But the quality of mechanical couplings situation is very big to the influence of testing result.
That is engaged at present the supersonic guide-wave technical research in the world mainly contains scientific research institutions and colleges and universities such as Britain Imperial College, U.S. Southwest Research Inst. and Univ Pennsylvania USA, and is engaged in the FBS company of the guided wave company (GUL) that Britain is arranged, TWI subordinate's the Pi company of pipe ultrasonic guided wave checkout equipment manufacturing and the U.S. and Southwest Research Inst. etc.The transducer anchor clamps that adopt are not quite similar but all can roughly be divided into two kinds of flexible ring and set collars.Take to be installed on transducer on the ring and to be fixed on the pipeline, and make it in the transducer back side well to contact the assurance mechanical couplings with body by applying external force.
Traditional transducer anchor clamps air bag and inflation inlet part are fragile, material is easy to wear, and owing to adopt steel ring is base material, volume and weight is big, transportation inconvenience, butt joint jig Design underaction, the counterpart of cranking arm before probe is installed is installed and is easier to, but slot alignment difficulty in probe back is installed, and coupling effect is undesirable in often causing detecting.Existing equipment adopts the MCX wiring, and is easy to use, but easily because of dust enters plug stopped up during on-the-spot the use, and plugs connector lug repeatedly when the installation and removal probe, easily causes the stressed distortion of core, and probe can not well be connected with wiring.
At the problems referred to above, domestic priority to relevant transducer stationary installation application many patents.How to deposit " the pipe ultrasonic guided wave detects dedicated probe and stationary installation thereof " (patent publication No.: be that a kind of pipe ultrasonic guided wave detects dedicated probe and stationary installation thereof, the detection and localization of the defect of pipeline that is used for using CN2624208) of richness, Wu Bin, Yu Haiqun.The stationary installation that is characterised in that probe is done circlewise, according to probe set collar diameter dimension, on its circumferencial direction, mill out several trough equably to place the single probe of respective amount, the rear portion of each probe grooves processes threaded hole, with jackscrew single probe is exerted pressure, thereby each probe can both be coupling on the pipeline securely; Patent " in order to assist the auxiliary fixing device of fixing of energy converter and isolating vibration " (patent publication No.: CN101111090) be a kind of auxiliary fixing device, described auxiliary fixing device is fixed in transducer on the base construction in order to assistance, and the shock transfer that isolated described transducer is caused during operation is to described base construction.
Be divided into two kinds of flexible ring and set collars generally.They take to be installed on transducer on the ring and to be fixed on the pipeline, and make it in the transducer back side well to contact the assurance mechanical couplings with body by applying external force.But butt joint jig Design underaction, air bag and inflation inlet part are fragile, and material is easy to wear, and base material is a steel ring, and the counterpart of cranking arm before probe is installed is installed and is easier to, but slot alignment difficulty in probe back is installed.Existing equipment adopts the MCX wiring, and is easy to use, but easily because of dust enters plug stopped up during on-the-spot the use, and plugs connector lug repeatedly when the installation and removal probe, easily causes the stressed distortion of core.
The utility model content
To be that design is a kind of guarantee that mechanical couplings effect, transportation use pipeline guided wave detection system flexible probe ring light, not easy to wear and that damage to the purpose of this utility model.
The utility model is that alignment and bend arm are moved to the top of device, and employing lightweight skeleton is guaranteed the coupling good with pipeline of popping one's head in by air bag.
Structure of the present utility model is seen Fig. 1-Fig. 3, and probe ring 3 is by probe module 1, lemo
TMInterface block 2, inflation inlet 4, butt joint jig 5, probe module interface 6, probe module seat 7, probe module compressing tablet 8, steel ring 9, outer cover 10, air bag band 11, air bag 12 and wiring are formed.Steel ring 9 inboards of circular open are equipped with probe module seat 7 and the probe module compressing tablet 8 that is inserted with a plurality of probe modules 1 on a plurality of vertically, and each probe module seat 7 other end has a probe module interface 6; Steel ring 9 is outer be surrounded by circular open in the air bag band 11 of air bag 12, the air bag band 11 outer outer covers 10 that are surrounded by circular open are again arranged; The outer cover 10 outer lemo that are fixed with
TM Interface block 2 and inflation inlet 4; Steel ring 9, air bag band 11, outer cover 10 threes are nested and register, and each end of opening connects an end of butt joint jig 5, by butt joint jig 5 steel ring 9, air bag band 11, outer cover 10 threes are connected into pipe; Probe module 1 is by the lemo on the cable connection probe ring 3
TM Interface block 2 is connected with system host again.
As sensor carrier, by making it to connect sensor and main frame and communicate on firmly contact and the tested tube wall workpiece around body clamping back inflation.The present invention can be ultrasonic guided wave detecting equipment better service and provides the improvement way in pipe detection.
The shape of described air bag 12 is seen Fig. 4, is the tubular, hollow capsule of circular open, outwards translates into flute profile at the two ends of opening, so that be stuck in 5 li of butt joint jigs, is made by the PVC flexible material;
Because the frequency of utilization of guided wave is low, therefore do not need couplant to be coupled, and only need mechanical couplings to get final product, but the quality of mechanical couplings situation is very big to the influence of testing result, so the effect of air bag is to guarantee that probe and pipeline can be good at coupling; Flexible ring comprises air bag band 11 structures and inflation inlet 4, and wherein air bag 12 is in air bag band 11 inside, and air bag 12 is inflated by inflation inlet 4; According to different calibers, the probe ring 3 of design different size; About the selection of air bag 12, need to consider the maximum pressure that air bag 12 inflations can be born and the material of air bag 12, air bag 12 is places of damaging easily with the shank of inflation inlet 4, carries out special processing;
The shape of described air bag band 11 is identical with air bag 12, is made by the PVC flexible material; Flexible ring air bag band 11 effect is that the air bag 12 to its inside shields, and on the circumference of air bag band 11, two row's probe module interfaces is arranged simultaneously, in have the contact to be used for being connected transmission signals with the module inner cable;
The structural design of flexible ring air bag band 11 is convenient to the installation and removal of probe module 1; Will be according to needed caliber, the flexible ring air bag band 11 of design different size, select suitable air bag band 11 materials, the performance requirement that this material need reach:
(1) good flexibility is arranged, so that probe ring 3 can well be installed on the pipeline;
(2) material will keep its shape in certain temperature range, bigger deformation can not take place under a certain temperature or brittle failure takes place, and guarantees like this can normally to detect under inclement weathers such as hot and cold; (annotate: the general work temperature conditions is 0 ℃-40 ℃, takes appropriate measures to be operated in (10 ℃-70 ℃), takes special measure to work down at+170 ℃);
(3) material has certain anti-pressure ability, because the flexible ring air bag needs inflation, so that probe reaches the favorable mechanical coupling with pipeline, this just needs air bag band 11 can bear certain pressure, otherwise, under pressure, ftracture, be that designing institute does not wish to take place; (annotate: maximum pressure is 35psi, and promptly 2.5 atmospheric pressure guarantee coupling effect)
(4) plastic yield does not take place can bearing in material in the pressure limit, otherwise air bag 12 is in continuous inflation deflation course, and air bag band 11 will lose efficacy;
The shape of described steel ring 9 is seen Fig. 5, is the tubulose of circular open, and openend respectively has a round;
Built-in steel ring 9 is that flexible ring is played support, is to 7 fixations of probe module seat simultaneously; Butt joint jig 5 and probe module holder 7 all are to be fixed on the steel ring 9, and promptly steel ring 9 can be regarded as the skeleton (annotate: the steel ring here is other suitable material also, as bands such as aluminium alloy, stainless steel or titanium alloys) of flexible ring;
The shape of described butt joint jig 5 is seen Fig. 6 and Fig. 7, two core plugs and the receptacle-shaped of its similar power supply, one is slot, the other end is a bend arm, respectively there is a bend arm on rectangular arm body both sides, and rectangular slot side is to the rectangular slot that holds two bend arms is arranged; Fig. 6 is that two bend arms inject the constitutional diagram in the slot, and Fig. 7 is two constitutional diagrams that bend arm is extracted slot; Purpose is in order to make flexible ring end face alignment, so that probe better is coupled with pipeline, guaranteed also that caliber size is inhomogeneous and makes flexible ring can be easy to activity when mounted; Improved butt joint jig 5 will align and move to the top of flexible probe ring with bend arm, and this helps actual operation, make alignment and fixing easier, can also reach above-mentioned application target simultaneously;
Described Lemo
TMInterface 2 is 24 holes as shown in Figure 8, and wherein the guided wave probe is 8 passages, takies 16 holes, to the probe ring of different tube diameters, and each group probe module 1 pairing probe number difference, such as, the probe ring of 16inch caliber, one group of per 4 probe, totally 8 groups; The probe ring of the caliber of 24inch, one group of per 6 probe, totally 8 groups; Connect the hole and be respectively ID identification wiring hole and button wiring hole, cancellation ID identification module and remain 8; Junction block is the hinge of probe and host signal transmission, for flexible ring, and Lemo
TMInterface 2 and button are on flexible ring air bag band;
Wiring
Guided wave equipment is made up of a lot of groups of probe modules, also just needs a lot of wiring simultaneously and connects main frame and probe module 1, to reach the purpose that transmits and receives signal simultaneously;
One 24 hole Lemo is formed in the multiply wiring of guided wave equipment
TMInterface 2, the effect of the interface of multiply wiring and correspondence is different;
Described probe module 1 is city's pin product; The probe of guided wave equipment is made up of a lot of pack modules, for the guided wave that produces torsion mode, form by two piezoelectric chips by each pack module, and for each the group probe module 1 that produces longitudinal mode, be by at a distance of L (0,1) three of half-wavelength piezoelectric chips are formed, that is to say, guided wave equipment can produce twisting die or longitudinal mode respectively, this helps being avoided omission in actual detected, because be that twisting die or longitudinal mode all have the insensitive situation of some defective, if detect and can carry out twisting die and longitudinal mode simultaneously in detecting, will significantly reduce loss;
Described probe module seat 7 is static probes and connects the device of probe module to flexible ring, is city's pin product; In the side of module base, four rounds are arranged, effect is according to using different frequencies, select the spacing between the different probes, the while static probe.
In the flexible probe ring general structure, the configuration design of air bag band is carried out according to the pipe diameter specification, and the pipeline of different tube diameters directly influences the selection of the probe module of flexible ring, determining dimensions etc.
The size of each structure and mutual relationship thereof
The length of a, flexible probe ring: relevant with the caliber of pipe under test;
The width of b, flexible probe ring: relevant with the length of air bag 11 width and probe module seat 7;
The length of c, probe module seat 7:, and select the mode of probe relevant with excitation frequency with the size of probe;
The stationary installation of d, probe module seat 7: relevant with the length of probe module 1;
The width of e, probe module seat 7: relevant with the size of probe;
The size of f, probe (size of physical construction): relevant with the size of piezoelectric;
G, to the size of welding fixture 5: relevant with the width and the slot of flexible probe ring;
The length of h, steel ring 9: relevant with the length of flexible probe ring;
The width of i, steel ring 9: relevant with the width of the width of air bag 11 and flexible probe ring.
Pipeline guided wave detection system is when carrying out the guided wave detection, probe and probe ring one-piece construction form the module group for some probe modules 1 of will popping one's head in are installed on probe module seat 7, a plurality of module groups arrangements are fixed on the probe ring, to pop one's head in is surrounded on the tested pipe wall again, utilizes to clamp and give air bag 12 inflations to make probe closely contact with tube wall to welding fixture 5.Connect the lemo that probe encircles by cable
TMInterface block 2 and system host can carry out testing.
When the utility model can guarantee transducer and body good mechanical coupling effect, the transportation and use light, not easy to wear and damage, special processing is carried out in the air bag 12 and the connector portions of inflation inlet 4 place of damaging easily that grades, make the butt joint jig easy-to-use flexibly, to control button and place on the main frame, and bend arm will be moved to the top of device, make alignment and fixing easier.The mode of connection of the present utility model is difficult for falling into dust plug is stopped up on basis easy to use when guaranteeing on-the-spot the use, and guarantees that core is difficult for stressed distortion and damages when mounting and dismounting connector lug repeatedly.
Description of drawings
Fig. 1 pipeline guided wave detection system flexible probe ring side view
Fig. 2 pipeline guided wave detection system flexible probe ring side vertical view
Fig. 3 pipeline guided wave detection system flexible probe ring vertical view
Fig. 4 air bag front elevation
Fig. 5 steel ring front elevation
Fig. 6 schemes welding fixture (insertion state)
Fig. 7 schemes welding fixture (open mode)
Fig. 8 Lemo
TMInterface schema
1-probe module 2-lemo wherein
TMInterface block
3-probe ring 4-inflation inlet
5-butt joint jig 6-probe module interface
7-probe module seat 8-probe module compressing tablet
9-steel ring 10-outer cover
11-air bag band 12-air bag
Embodiment
Embodiment. this example is the experiment flexible probe ring on Ф 610mm pipeline, and it constitutes as shown in Figure 1-Figure 3.Probe ring 3 is by probe module 1, lemo
TMInterface block 2, inflation inlet 4, butt joint jig 5, probe module interface 6, probe module seat 7, probe module compressing tablet 8, steel ring 9, outer cover 10, air bag band 11, air bag 12 and wiring are formed.Steel ring 9 inboards of circular open are equipped with probe module seat 7 and the probe module compressing tablet 8 that is inserted with a plurality of probe modules 1 on a plurality of vertically, and each probe module seat 7 other end has a probe module interface 6; Steel ring 9 is outer be surrounded by circular open in the air bag band of air bag 11 is arranged, the air bag band is surrounded by the outer cover 10 of circular open outward again; The outer cover 10 outer lemo that are fixed with
TM Interface block 2 and inflation inlet 4; Steel ring 9, air bag band, outer cover 10 threes are nested and register, and each end of opening connects an end of butt joint jig 5, by butt joint jig 5 steel ring 9, air bag band, outer cover 10 threes are connected into pipe; Probe module 1 is by the lemo on the cable connection probe ring 3
TM Interface block 2 is connected with system host again.
The shape of described air bag 12 is the tubular, hollow capsule of Ф 710mm circular open as shown in Figure 4, outwards translates into flute profile at the two ends of opening, is made by the PVC flexible material;
The shape of described air bag band 11 is identical with air bag 12, for the tubular, hollow capsule of Ф 770mm circular open, is made by the PVC flexible material; Two row's probe module interfaces are arranged, in have the contact to be used for being connected transmission signals with the module inner cable;
The shape of described steel ring 9 is the tubulose of Ф 710mm circular open as shown in Figure 5, and openend respectively has a round;
The shape of described butt joint jig 5 as shown in Figure 6, two core plugs and the receptacle-shaped of its similar power supply, one is slot, the other end is a bend arm, respectively there is a bend arm on rectangular arm body both sides, and rectangular slot side is to the rectangular slot that holds two bend arms is arranged;
Described Lemo
TMInterface 2 is 24 holes as shown in Figure 7, and wherein the guided wave probe is 8 passages, takies 16 holes, to the probe ring of different tube diameters, and each group probe module 1 pairing probe number difference; The probe ring of this example, one group of per 6 probe, totally 8 groups; Connect the hole and be respectively ID identification wiring hole and button wiring hole, cancellation ID identification module and remain 8; Junction block is the hinge of probe and host signal transmission, for flexible ring, and Lemo
TMInterface 2 and button are on flexible ring air bag band;
One 24 hole Lemo is formed in the multiply wiring of guided wave equipment
TMInterface 2, the effect of the interface of multiply wiring and correspondence is different;
Described probe module 1 is selected city pin WM G3 sensor assembly for use;
Described probe module seat 7 is selected city pin WM G3 sensor die block for use.
This example can guarantee transducer and body good mechanical coupling effect through site test, transports and uses lightly, not easy to wear and damage, and butt joint jig 5 is easy-to-use flexibly, alignment and fixing easier; The mode of connection is easy to use, is difficult for falling into dust plug is stopped up, and guarantee that core is difficult for stressed distortion and damages when mounting and dismounting connector lug repeatedly.
Claims (8)
1. a pipeline guided wave detection system flexible probe ring is characterized in that probe ring (3) is by probe module (1), lemo
TMInterface block (2), inflation inlet (4), butt joint jig (5), probe module interface (6), probe module seat (7), probe module compressing tablet (8), steel ring (9), outer cover (10), air bag band (11), air bag (12) and wiring are formed; The steel ring of circular open (9) inboard is equipped with probe module seat (7) and the probe module compressing tablet (8) that is inserted with a plurality of probe modules (1) on a plurality of vertically, and the other end of each probe module seat (7) has a probe module interface (6); Steel ring (9) is outer be surrounded by circular open in the air bag band (11) of air bag (12), the outer outer cover (10) that is surrounded by circular open again of air bag band (11) are arranged; The outer lemo that is fixed with of outer cover (10)
TMInterface block (2) and inflation inlet (4); Steel ring (9), air bag band (11), outer cover (10) three are nested and register, each end of opening connects an end of butt joint jig (5), by butt joint jig (5) steel ring (9), air bag band (11), outer cover (10) three is connected into pipe; Probe module (1) is by the lemo on the cable connection probe ring (3)
TMInterface block (2) is connected with system host again.
2. pipeline guided wave detection system flexible probe ring according to claim 1, the tubular, hollow capsule that is shaped as circular open that it is characterized in that described air bag (12), flute profile is outwards translated at two ends at opening, so that be stuck in butt joint jig (5) lining, is made by the PVC flexible material.
3. pipeline guided wave detection system flexible probe ring according to claim 1 is characterized in that the tubular, hollow capsule that is shaped as circular open of described air bag band (11), is made by the PVC flexible material; On the circumference of air bag band (11), two row's probe module interfaces (6) are arranged.
4. pipeline guided wave detection system flexible probe ring according to claim 1 is characterized in that the tubulose that is shaped as circular open of described steel ring (9), and openend respectively has a round; Its material is steel, aluminium alloy, stainless steel or titanium alloy.
5. pipeline guided wave detection system flexible probe ring according to claim 1, two core plugs and the receptacle-shaped that it is characterized in that the shape equivalent current supply of described butt joint jig (5), one is slot, and the other end is a bend arm, and respectively there is a bend arm on rectangular arm body both sides.
6. pipeline guided wave detection system flexible probe ring according to claim 1 is characterized in that described Lemo
TMInterface (2) is 24 holes, and wherein the guided wave probe is 8 passages, takies 16 holes; Connect the hole and be respectively ID identification wiring hole and button wiring hole and remain 8; The Lemo that the multiply wiring is formed
TMInterface (2) and button are on flexible ring air bag band (11).
7. pipeline guided wave detection system flexible probe ring according to claim 1 is characterized in that described probe module (1) is made up of many pack modules, for the guided wave that produces torsion mode, is that each pack module is made up of two piezoelectric chips; For each the group probe module (1) that produces longitudinal mode, be to form at a distance of three piezoelectric chips of L (0,1) half-wavelength by each.
8. pipeline guided wave detection system flexible probe ring according to claim 1 is characterized in that described probe module seat (7) is the side at module base, and the spacing selected between the different probes and four rounds of static probe are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206853626U CN202066839U (en) | 2010-12-23 | 2010-12-23 | Flexible probe ring of pipeline guided wave detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206853626U CN202066839U (en) | 2010-12-23 | 2010-12-23 | Flexible probe ring of pipeline guided wave detection system |
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| CN202066839U true CN202066839U (en) | 2011-12-07 |
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| CN2010206853626U Expired - Lifetime CN202066839U (en) | 2010-12-23 | 2010-12-23 | Flexible probe ring of pipeline guided wave detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565199A (en) * | 2010-12-23 | 2012-07-11 | 中国石油天然气股份有限公司 | Flexible probe ring of pipeline guided wave detection system |
| CN103899921A (en) * | 2014-03-07 | 2014-07-02 | 镇江天颐装备科技有限公司 | Ultrasonic guided-wave probe fixing device for pipeline detection |
| CN110158425A (en) * | 2019-06-27 | 2019-08-23 | 湖州华科建设工程质量检测有限公司 | A kind of road pipe detection ring shake detector |
-
2010
- 2010-12-23 CN CN2010206853626U patent/CN202066839U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565199A (en) * | 2010-12-23 | 2012-07-11 | 中国石油天然气股份有限公司 | Flexible probe ring of pipeline guided wave detection system |
| CN102565199B (en) * | 2010-12-23 | 2014-04-02 | 中国石油天然气股份有限公司 | Flexible probe ring of pipeline guided wave detection system |
| CN103899921A (en) * | 2014-03-07 | 2014-07-02 | 镇江天颐装备科技有限公司 | Ultrasonic guided-wave probe fixing device for pipeline detection |
| CN103899921B (en) * | 2014-03-07 | 2017-01-04 | 镇江天颐装备科技有限公司 | Ultrasonic probe fixing device for pipe detection |
| CN110158425A (en) * | 2019-06-27 | 2019-08-23 | 湖州华科建设工程质量检测有限公司 | A kind of road pipe detection ring shake detector |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |