CN2676147Y - Sealing device for wall thickness ultrasonic detector for steel pipe - Google Patents
Sealing device for wall thickness ultrasonic detector for steel pipe Download PDFInfo
- Publication number
- CN2676147Y CN2676147Y CN 200420032978 CN200420032978U CN2676147Y CN 2676147 Y CN2676147 Y CN 2676147Y CN 200420032978 CN200420032978 CN 200420032978 CN 200420032978 U CN200420032978 U CN 200420032978U CN 2676147 Y CN2676147 Y CN 2676147Y
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- steel pipe
- water tank
- water
- ultrasonic detector
- sealing ring
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- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses a sealing device for a wall thickness ultrasonic detector for steel pipes, which comprises concentric sealing rings fixedly installed on an inlet hole and an outlet hole at both side walls of the water tank of the ultrasonic detector for the detected steel pipe to pass, and a sealed transferring rod which is nested on and matched with the inner ring of the sealing ring and spans both side walls of the water tank; the diameter of the transferring rod is equal to that of the detected steel pipe. The utility model has the advantage that the water in the water tank has an excellent sealing with little leakage during detection process and infrequent water supply to eliminate the influence on the detection accuracy due to the flow speed, thee pressure, the air bubble and other factors of the water, so the detection accuracy can be enhanced and the ultrasonic detector can continuously detect wall thickness of a plurality of steel pipes.
Description
Affiliated technical field
The utility model relates to a kind of packoff, especially relates to the water sealing device in the thickness of steel pipe supersonic reflectoscope.
Background technology
Utilize supersonic reflectoscope that steel pipe is carried out the wall thickness Non-Destructive Testing, be as the couplant that detects usefulness with water, its principle of work is to send ultrasound wave by the immersion type ultrasonic probe to steel pipe, receives the signal that ultrasound wave returns then and carries out analyzing and processing, obtains the data of thickness of steel pipe.Existing thickness of steel pipe supersonic reflectoscope structurally has a water tank that has oral siphon and drainpipe, the immersion type ultrasonic probe stretches in the water tank, the concentric ingate that the detected steel pipe of the confession that has on the two side of water tank passes through, outlet opening, the defective that mainly has following two aspects, one, because ingate, do not have packoff on the outlet opening, the water leakage rate is big in the testing process, need to pass through often amount of makeup water in water tank of oral siphon, and the flow velocity of water can appear in supplementing water continually, pressure changing takes place, also can produce bubble, these all can produce testing result and seriously influence; They are two years old, can not realize the continuous detecting of steel pipe, after the afterbody that first velamen is surveyed steel pipe is crossed ingate on the water tank, water in the water tank leaks in a large number from the ingate, after the head of second velamen survey steel pipe stretches into ingate, outlet opening, need amount of makeup water could detect it in water tank, this can't keep the steady state (SS) of water inevitably.
The utility model content
Influence accuracy of detection in order to overcome existing thickness of steel pipe supersonic reflectoscope greatly because of the water leakage rate, and the deficiency that can not realize many steel pipe continuous detecting, technical problem to be solved in the utility model provides a kind of packoff, the sealing device not only makes thickness of steel pipe supersonic reflectoscope water leakage rate in testing process very little, thereby improved accuracy of detection, and it can be detected continuously to many steel pipes.
The technical scheme that its technical matters that solves the utility model adopts is: the packoff in the thickness of steel pipe supersonic reflectoscope of the present utility model, it is characterized in that: be set with concentric sealing ring respectively on the ingate that the detected steel pipe of the confession that has on the two side of the water tank in described supersonic reflectoscope passes through, the outlet opening, be nested with one on the inner ring of described sealing ring and match with it and merge to form the excessive rod across described water tank two side of sealing, the diameter of described excessive rod equates with the external diameter of described detected steel pipe.
In above-mentioned packoff, described sealing ring is an elastic sealing ring, and described excessive rod matches with it and forms sealing to the ingate on the water tank two side, outlet opening.Under external force, described excessive rod can slippage on the inner ring of described sealing ring.
In above-mentioned packoff, be formed with on two ends of described excessive rod and suitable nested section of described steel pipe inner wall surface.During detection, an end of detected steel pipe is nested in described excessive rod, along with the slippage of excessive rod in described sealing ring, detected steel pipe progresses in the water tank.Steel pipe enters in the process, and the water in the water tank can not leak.When the front end of first velamen detection steel pipe slides onto the outlet opening place of water tank, described excessive rod is supported out in water tank, can the front end of described excessive rod is nested with the afterbody that first velamen detects steel pipe, and the rear end of described excessive rod is nested with the front end that second velamen detects steel pipe, such second velamen detects steel pipe and will detect at first steel pipe and finish the back and transferred continuously in the water tank, moves in circles with this and just can realize continuous detecting to many steel pipes.
The beneficial effects of the utility model are, good seal to water in the water tank, the water leakage rate is very little in the testing process, frequent supplementing water, eliminated since the flow velocity of water, pressure, bubble factor to the influence of accuracy of detection, therefore can improve accuracy of detection, and make supersonic reflectoscope carry out continuous wall thickness detecting many steel pipes.
Description of drawings
This instructions comprises following three width of cloth accompanying drawings:
Fig. 1 is the structural representation of the utility model packoff;
Fig. 2 is the partial sectional view (amplification) of the end of the excessive rod in the utility model packoff;
Fig. 3 is the synoptic diagram when detected steel pipe passes through water tank in the utility model packoff;
Parts, position and numbering among the figure: water tank 10, immersion type ultrasonic probe 11, oral siphon 12, drainpipe 13, sealing ring 14, sealing ring 15, excessively rod 20, nested section 21, contraction section 22, detected steel pipe 30.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, the thickness of steel pipe supersonic reflectoscope has a water tank 10 that has oral siphon 12 and drainpipe 13, and immersion type ultrasonic probe 11 stretches in the water tank 10, ingate, outlet opening that the detected steel pipe 30 of the confession that has on the two side of water tank 10 passes through.On described ingate, outlet opening, be set with concentric sealing ring 14,15 respectively, be nested with one on the inner ring of sealing ring 14,15 and match with it and merge to form excessive excellent 20 across water tank 10 two sides of sealing, excessively the diameter of rod 20 equates with the external diameter of detected steel pipe 30.
For guaranteeing in excessive rod 20 or steel pipe 30 slippings that to the sealing of tank entry hole, outlet opening, sealing ring 14,15 adopts elastic sealing rings.
As shown in Figure 1 and Figure 2, excessively be formed with on two ends of rod 20 and suitable nested section 21 of steel pipe 30 inner wall surface.For convenient with detected steel pipe front end or the rear end with excessively rod 20 is nested, shrink the contraction section 22 that formation is circular conical surface gradually near the excessive place, end of rod 20 on nested section 21.
Fig. 3 then shows the continuous detecting process of steel pipe.As shown in FIG., when the front end of first velamen detection steel pipe slides onto the outlet opening place of water tank 10, described excessive excellent 20 are supported out in water tank, can the front end of excessive rod 20 is nested with the afterbody that first velamen detects steel pipe, and excessively the rear end of rod 20 is nested with the front end that second velamen detects steel pipe, such second velamen detects steel pipe and will detect at first steel pipe and finish the back and transferred in the water tank 10 continuously, moves in circles in this way to realize continuous detecting to many steel pipes.
It is pointed out that top described principles more of the present utility model that just explain through diagrams, because the those of ordinary skill in constructed field is easy to carry out on this basis some modifications and change.Therefore, this instructions be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (4)
1, a kind of packoff of thickness of steel pipe supersonic reflectoscope, it is characterized in that: be set with concentric sealing ring (14), (15) respectively on the ingate that the detected steel pipe of confession (30) that has on the two side of the water tank in described supersonic reflectoscope (10) passes through, the outlet opening, be nested with on the inner ring of described sealing ring (14), (15) one match with it form sealing and across the excessive rod (20) of described water tank (10) two side, the diameter of described excessive rod (20) equates with the external diameter of described detected steel pipe (30).
2, the packoff of thickness of steel pipe supersonic reflectoscope according to claim 1 is characterized in that: described sealing ring (14), (15) are elastic sealing ring.
3, the packoff of thickness of steel pipe supersonic reflectoscope according to claim 1 is characterized in that: be formed with on two ends of described excessive rod (20) and nested section suitable (21) of described steel pipe (30) inner wall surface.
4, the packoff of thickness of steel pipe supersonic reflectoscope according to claim 3 is characterized in that: described nested section (21) are gone up near the place, end of described excessive rod (20) and are shunk the contraction section (22) that formation is circular conical surface gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032978 CN2676147Y (en) | 2004-02-24 | 2004-02-24 | Sealing device for wall thickness ultrasonic detector for steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032978 CN2676147Y (en) | 2004-02-24 | 2004-02-24 | Sealing device for wall thickness ultrasonic detector for steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2676147Y true CN2676147Y (en) | 2005-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420032978 Expired - Fee Related CN2676147Y (en) | 2004-02-24 | 2004-02-24 | Sealing device for wall thickness ultrasonic detector for steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2676147Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980538A (en) * | 2012-11-07 | 2013-03-20 | 浙江理工大学 | High temperature pipeline wall thickness on-line monitoring device |
| CN104390610A (en) * | 2014-11-06 | 2015-03-04 | 西南交通大学 | Annular device inner and outer diameter measuring device |
| CN106394603A (en) * | 2016-08-31 | 2017-02-15 | 成都主导科技有限责任公司 | Wheel and axle ultrasonic flaw detection device and method based on local water immersion |
| CN111337570A (en) * | 2018-12-18 | 2020-06-26 | 宝武特种冶金有限公司 | Ultrasonic flaw detection system for nuclear-grade stainless steel outer sleeve and flaw detection method thereof |
| CN114252508A (en) * | 2021-12-13 | 2022-03-29 | 宝武杰富意特殊钢有限公司 | Floating water seal device for round steel ultrasonic flaw detector, use method of floating water seal device and round steel ultrasonic flaw detector |
-
2004
- 2004-02-24 CN CN 200420032978 patent/CN2676147Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980538A (en) * | 2012-11-07 | 2013-03-20 | 浙江理工大学 | High temperature pipeline wall thickness on-line monitoring device |
| CN102980538B (en) * | 2012-11-07 | 2015-05-20 | 浙江理工大学 | High temperature pipeline wall thickness on-line monitoring device |
| CN104390610A (en) * | 2014-11-06 | 2015-03-04 | 西南交通大学 | Annular device inner and outer diameter measuring device |
| CN104390610B (en) * | 2014-11-06 | 2017-08-11 | 西南交通大学 | Calipers inside and outside ring-shaped device |
| CN106394603A (en) * | 2016-08-31 | 2017-02-15 | 成都主导科技有限责任公司 | Wheel and axle ultrasonic flaw detection device and method based on local water immersion |
| CN111337570A (en) * | 2018-12-18 | 2020-06-26 | 宝武特种冶金有限公司 | Ultrasonic flaw detection system for nuclear-grade stainless steel outer sleeve and flaw detection method thereof |
| CN111337570B (en) * | 2018-12-18 | 2023-03-24 | 宝武特种冶金有限公司 | Ultrasonic flaw detection system for nuclear-grade stainless steel outer sleeve and flaw detection method thereof |
| CN114252508A (en) * | 2021-12-13 | 2022-03-29 | 宝武杰富意特殊钢有限公司 | Floating water seal device for round steel ultrasonic flaw detector, use method of floating water seal device and round steel ultrasonic flaw detector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Ren Hong Document name: Notification of Termination of Patent Right |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |