CN203758893U - Simulated corrosion source device for acoustic emission testing of baseplate of storage tank - Google Patents
Simulated corrosion source device for acoustic emission testing of baseplate of storage tank Download PDFInfo
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- CN203758893U CN203758893U CN201420178940.5U CN201420178940U CN203758893U CN 203758893 U CN203758893 U CN 203758893U CN 201420178940 U CN201420178940 U CN 201420178940U CN 203758893 U CN203758893 U CN 203758893U
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- storage tank
- baseplate
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Abstract
The utility model provides a simulated corrosion source device for acoustic emission testing of a baseplate of a storage tank, and mainly aims at providing an experimental facility convenient for accurate assessment of a corrosion sound source of the baseplate of the storage tank. The simulated corrosion source device is characterized in that a hollow pipe is fixed in the center of a main body, the upper end of the hollow pipe is connected to an upper connector of the main body through a thread, and a zigzag opening is formed in the lower end of the hollow pipe; the simulated corrosion source device also comprises a flange, a blind flange, a corrosive medium subpackaging disc, a magnet and a hollow telescopic air pipe with a threaded connection base; a cavity of the hollow telescopic air pipe is communicated with a cavity of the hollow pipe; the corrosive medium subpackaging disc comprises a plurality of sealed fan-shaped coamings, sealing pins and the baseplate with a bottom support block, the plurality of fan-shaped coamings are connected in a sealing manner and then are fixed on the baseplate, perforative pin holes are formed in the area and are matched with the sealing pins, the tops of the sealing pins are connected to a digging rope, and the tail end of the digging rope is connected to a pull ring; and an upper plate of a flange is welded at the bottom of the main body, and the blind flange is provided with an inward sag.
Description
Technical field
The utility model relates to a kind of appurtenance being applied in acoustic emission detection field.
Background technology
The Large Atmosphere Pressure vertical storage tank of splendid attire oil product is under arms in process, and due to the impact that environment of living in and operating condition change, storage tank can produce certain corrosion damage.Especially the storage tank bottom plate corrosion cracking and the spot corrosion that are caused by chemical corrosion and galvanic corrosion acting in conjunction are bored a hole, and basis is destroyed, and built-in oil product leaks, and causes major accident, and environment and people life property safety are constituted a serious threat.It is one of important technology safeguard of atmospheric storage tank safe operation that the corrosion of storage tank bottom plate detects with corrosion safety assessment, and acoustic emission testing technology is storage tank bottom plate etch state to be carried out to online one of the main detection technique adopting that detects both at home and abroad at present, in the time of this technical work of application, often need the experimental provision of building a simulation storage tank bottom plate local corrosion to obtain correlation parameter.But, in experimentation, running into a problem, that is difficult to fix fast and control triggering for source of corrosion exactly, thus causing being difficult to carries out accurate evaluation to storage tank bottom plate corrosion sound source.
Summary of the invention
In order to solve the technical matters of mentioning in background technology, the utility model provides a kind of storage tank bottom plate corrosion simulation source apparatus for acoustic emission detection, this kind of corrosion simulation source device structure is simple, be easy to install, can fix fast and accurately control and trigger in experiment tank inside, carry out accurate evaluation thereby be convenient to that storage tank bottom plate is corroded to sound source.
The technical solution of the utility model is: this kind, for the storage tank bottom plate corrosion simulation source apparatus of acoustic emission detection, comprises main body, and its unique distinction is:
Main body is inverted iron hollow cylinder, and central authorities are fixed with hollow tubular, and the upper end of hollow tubular is threaded connection in main body top connection, and the lower end of hollow tubular is with serrate gap; Described corrosion simulation source apparatus also comprises that flange, blank flange, corrosive medium divide sabot, magnet and be threaded the hollow flexible tracheae that connects base; Wherein, the top of hollow flexible tracheae is threaded connection and is fixed with centering ring, symmetrical two righting ropes, the bottom connection magnet of righting rope of connecting on centering ring; The base that is threaded is connected in main body top connection, and the inner chamber of hollow flexible tracheae communicates with the inner chamber of hollow tubular; Corrosive medium divides the fan-shaped coaming plate of sabot by several sealings, pluggable link block and the base plate with bottom support piece to form, several fan-shaped coaming plates are fixed on base plate after being tightly connected, on base plate, in each cut zone of correspondence, have a pin hole running through, pin hole matches with link block, the top of link block is connected with a stay cord, the end of stay cord connects draw ring, stay cord leads to outside hollow flexible tracheae via the inner chamber of hollow tubular and hollow flexible tracheae, and the serrate gap of hollow tubular is stuck on fan-shaped coaming plate; The upper dish of flange is welded on the bottom of main body, and blank flange, with sunken inside, is fastened on by screw bolt and nut between the upper and lower dish of flange, and the diameter of blank flange is greater than the central aperture of flange.
The utlity model has following beneficial effect: in this kind of device inner flange blind plate, the material of sunken inside place placement derby is identical with experiment storage tank bottom plate material, medium divides the sabot can the multiple different etchant solutions of splendid attire, pull as required draw ring corresponding to respective disc, after seal pin is opened, etchant solution in this dish flows out on blank flange via pin hole, contact with derby with experiment, can form source of corrosion.In addition, also can pull two or three draw rings simultaneously, simulate the situation that multiple source of corrosion coexists.Arrange with outside air connected component be a snorkel, be threaded connection in main part, snorkel can stretch, put into experiment storage tank to be measured, the top of snorkel will be higher than tank level, in corrosion simulation device, produce source of corrosion, the calibrate AE sensor that can be disposed on experiment storage tank receives, and carries out the analysis of local corrosion sound source characteristic.In addition, the snorkel of this corrosion simulation source apparatus is detachable, scalable, is easy to carry and installs, and spout part is equipped with centering ring, ensures that it is firm, in the blind plate of bottom, can place any derby or alloy block, can simulate the local corrosion of unlike material storage tank bottom plate.Utilize this kind of device can build the experiment porch of a simulation storage tank bottom plate local corrosion process, to probe into local corrosion sound source characteristic, and then improve the accuracy of acoustic emission detection to the assessment of storage tank bottom plate etch state.
Brief description of the drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the plan structure schematic diagram that corrosive medium described in the utility model divides sabot.
The cross-sectional view of Fig. 3 Fig. 2.
Fig. 4 is the front view of Fig. 2.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, this kind is for the storage tank bottom plate corrosion simulation source apparatus of acoustic emission detection, comprise main body 7, main body 7 is inverted iron hollow cylinder, central authorities are fixed with hollow tubular 6, the upper end of hollow tubular 6 is threaded connection in main body top connection 11, and the lower end of hollow tubular 6 is with serrate gap, and the effect of this gap is for opening on the fan-shaped coaming plate being in contact with it.
In addition, described corrosion simulation source apparatus also comprises that flange 10, blank flange 9, corrosive medium divide sabot 13, magnet 12 and be threaded the hollow flexible tracheae 3 that connects base 4.Below the structure of above these parts is introduced respectively:
Wherein, the top of hollow flexible tracheae 3 is threaded connection and is fixed with centering ring 1, symmetrical two righting ropes 16, the bottom connection magnet 12 of righting rope 16 of connecting on centering ring 1; The base 4 that is threaded is connected in main body top connection 11, and the inner chamber of hollow flexible tracheae 3 communicates with the inner chamber of hollow tubular 6.
Corrosive medium divides sabot 13 to be positioned at main body, Fig. 2 to Fig. 4 is respectively that corrosive medium divides overlooking of sabot, analyse and observe and front view, it is by the fan-shaped coaming plate 19 of several sealings, pluggable link block 8 and forming with the base plate 17 of bottom support piece, several fan-shaped coaming plates 19 are fixed on base plate 17 after being tightly connected, on base plate 17, in each cut zone of correspondence, have a pin hole running through 18, pin hole 18 matches with link block 8, the top of link block 8 is connected with a stay cord 5, the end of stay cord 5 connects draw ring 2, stay cord 5 leads to outside hollow flexible tracheae 3 via the inner chamber of hollow tubular 6 and hollow flexible tracheae 3, the serrate gap of hollow tubular 6 is stuck on fan-shaped coaming plate 19.
The upper dish of flange 10 is welded on the bottom of main body 7, and blank flange 9, with sunken inside, is fastened on by bolt 15 and nut 14 between the upper and lower dish of flange 10, and the diameter of blank flange 9 is greater than the central aperture of flange 10.
This device is according to erection sequence from bottom to up, first be the connection that apparatus main body, medium divide sabot, blind plate, flange, first divide sabot to connect in medium and pack etchant solution into, then the blank flange and the flange that divide sabot by main body, medium, place reacting metal are put well from top to bottom successively, the length of the connecting line of adjusting centering ring and magnet and the position on apparatus main body, make hollow flexible tracheae firm.
The course of work is as follows: by analogue means interior media divide sabot in-built enter etchant solution, the reacting metal piece of the blind plate recess of bottom is replaced by and tests the identical material of storage tank bottom plate to be measured, regulate the length of scalable snorkel, make the liquid level of snorkel upper end higher than medium in experiment storage tank to be measured, regulating magnet position and with the firm snorkel of centering ring connecting line length, analogue means is put into experiment storage tank to be measured, pull the draw ring that required etchant solution is corresponding, object contact in corrosive liquid and bottom blind plate, form source of corrosion, can carry out the detection of acoustic emission to storage tank bottom plate local corrosion source, medium divides the sabot can three kinds, splendid attire or more kinds of etchant solution.
Claims (1)
1. for a storage tank bottom plate corrosion simulation source apparatus for acoustic emission detection, comprise main body (7), it is characterized in that:
Main body (7) is inverted iron hollow cylinder, and central authorities are fixed with hollow tubular (6), and the upper end of hollow tubular (6) is threaded connection in main body top connection (11), and the lower end of hollow tubular (6) is with serrate gap;
Described corrosion simulation source apparatus also comprises that flange (10), blank flange (9), corrosive medium divide sabot (13), magnet (12) and be threaded the hollow flexible tracheae (3) that connects base (4);
Wherein, the top of hollow flexible tracheae (3) is threaded connection and is fixed with centering ring (1), the upper symmetrical two righting ropes (16) that connect of centering ring (1), and the bottom of righting rope (16) connects magnet (12), it is upper that the base (4) that is threaded is connected in main body top connection (11), and the inner chamber of hollow flexible tracheae (3) communicates with the inner chamber of hollow tubular (6), corrosive medium divides the fan-shaped coaming plate (19) of sabot (13) by several sealings, pluggable link block (8) and with base plate (17) composition of bottom support piece, several fan-shaped coaming plates (19) are fixed on base plate (17) after being tightly connected, in the upper corresponding each cut zone of base plate (17), have a pin hole running through (18), pin hole (18) matches with link block (8), the top of link block (8) is connected with a stay cord (5), the end of stay cord (5) connects draw ring (2), stay cord (5) leads to outside hollow flexible tracheae (3) via the inner chamber of hollow tubular (6) and hollow flexible tracheae (3), the serrate gap of hollow tubular (6) is stuck on fan-shaped coaming plate (19),
The upper dish of flange (10) is welded on the bottom of main body (7), blank flange (9) is with sunken inside, be fastened between the upper and lower dish of flange (10) by bolt (15) and nut (14), the diameter of blank flange (9) is greater than the central aperture of flange (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178940.5U CN203758893U (en) | 2014-04-14 | 2014-04-14 | Simulated corrosion source device for acoustic emission testing of baseplate of storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178940.5U CN203758893U (en) | 2014-04-14 | 2014-04-14 | Simulated corrosion source device for acoustic emission testing of baseplate of storage tank |
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| Publication Number | Publication Date |
|---|---|
| CN203758893U true CN203758893U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420178940.5U Expired - Fee Related CN203758893U (en) | 2014-04-14 | 2014-04-14 | Simulated corrosion source device for acoustic emission testing of baseplate of storage tank |
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| CN (1) | CN203758893U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833628A (en) * | 2015-04-29 | 2015-08-12 | 中国石油天然气股份有限公司 | Storage tank base plate detection analog device and analog storage tank |
| CN105203641A (en) * | 2015-09-22 | 2015-12-30 | 东北石油大学 | Built-in type acoustic emission test method for corrosion of bottom plate of storage tank |
| CN105241956A (en) * | 2015-10-29 | 2016-01-13 | 南京化工特种设备检验检测研究所 | Acoustic emission inspection device for storage tank base plate corrosion |
| CN111189765A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Multi-source corrosion acoustic emission experiment testing device for storage tank bottom plate |
-
2014
- 2014-04-14 CN CN201420178940.5U patent/CN203758893U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833628A (en) * | 2015-04-29 | 2015-08-12 | 中国石油天然气股份有限公司 | Storage tank base plate detection analog device and analog storage tank |
| CN104833628B (en) * | 2015-04-29 | 2018-10-16 | 中国石油天然气股份有限公司 | A kind of tank floor inspection simulator and simulation storage tank |
| CN105203641A (en) * | 2015-09-22 | 2015-12-30 | 东北石油大学 | Built-in type acoustic emission test method for corrosion of bottom plate of storage tank |
| CN105203641B (en) * | 2015-09-22 | 2018-06-05 | 东北石油大学 | Storage tank bottom plate corrodes built-in acoustic emission detection method |
| CN105241956A (en) * | 2015-10-29 | 2016-01-13 | 南京化工特种设备检验检测研究所 | Acoustic emission inspection device for storage tank base plate corrosion |
| CN105241956B (en) * | 2015-10-29 | 2018-07-06 | 南京化工特种设备检验检测研究所 | A kind of storage tank bottom plate corrodes acoustic emission detection system |
| CN111189765A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Multi-source corrosion acoustic emission experiment testing device for storage tank bottom plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150414 |
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| EXPY | Termination of patent right or utility model |