CN217384179U - Electromagnetic ultrasonic probe for detecting wall thickness of elbow of carbon steel pressure pipeline - Google Patents
Electromagnetic ultrasonic probe for detecting wall thickness of elbow of carbon steel pressure pipeline Download PDFInfo
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- CN217384179U CN217384179U CN202220802219.3U CN202220802219U CN217384179U CN 217384179 U CN217384179 U CN 217384179U CN 202220802219 U CN202220802219 U CN 202220802219U CN 217384179 U CN217384179 U CN 217384179U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model provides a wall thickness of carbon steel pressure pipeline elbow detects uses electromagnetic ultrasonic probe, relates to supersound nondestructive test technical field, and it need not to paint couplant and can realize the probe and be detected the inseparable combination of pipeline internal surface, has effectively improved detection efficiency. In the electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline, a permanent magnet is arranged in an outer housing, an inner support frame is arranged in the permanent magnet, a lead penetrates through the inner support frame, one end of the lead is connected with a detection coil, the other end of the lead is connected with an upper joint, and the upper joint is used for being connected with a host of an electromagnetic ultrasonic detector; the outer wall of permanent magnet and housing is ARC structure, and through changing probe surface shape, inner structure and electro-magnet shape, the permanent magnet that has ARC structure and the arc probe of housing can guarantee to furthest to press close to the internal surface that is detected the return bend, need not to paint couplant and can realize the inseparable combination of probe and detected pipeline internal surface, has effectively improved detection efficiency.
Description
Technical Field
The utility model relates to an supersound nondestructive test technical field especially relates to an electromagnetic ultrasonic probe is used in wall thickness detection of carbon steel pipeline under pressure elbow.
Background
Pipeline transportation plays an important role in national economy, national defense industry, daily life and the like, and petroleum, natural gas, heat supply networks, tap water pipelines and the like become important infrastructures which are inseparable from national economy and national life. The safety of the pipeline structure is directly related to the normal operation of infrastructure and the protection of ecological environment; in daily operation of the pipeline, the pipe wall is locally thinned due to corrosion, erosion, cavitation and the like, the pressure bearing capacity of the pipeline is reduced, and finally the pipeline is cracked and leaked. The wall thickness of the conventional part of the pipeline can be detected by a piezoelectric ultrasonic probe and an electromagnetic ultrasonic probe; for the inner surface of the pipeline elbow, as the curvature radius of the inner surface is far larger than that of the outer surface, the ultrasonic probe has great difficulty and cannot detect the inner surface in the detection process; the inner surface of the pipeline is positioned at the position of the elbow, so that the pipeline is very easily influenced by erosion and gas corrosion, and further causes the corrosion and thinning of the wall thickness.
For the piezoelectric ultrasonic probe, because the piezoelectric wafer is a brittle material and cannot be bent, only a small-size probe can be adopted for inner surface detection, or sound-transmitting resin with a convex surface is adhered to the surface of the wafer; the piezoelectric ultrasonic probe realizes the transmission of ultrasonic waves between the probe and the pipe wall by means of a coupling agent; the use of the sound-transmitting resin increases the sound-transmitting medium and thickness between the ultrasonic probe and the pipe to be detected, which causes attenuation of sound wave energy and superposition of reflected signals between multiple layers, resulting in reduction of wall thickness detection capability.
For electromagnetic ultrasound probes, there is currently no practical solution. In order to overcome the defects, the application provides an electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline, and the wall thickness of the inner surface of the elbow of the pipeline is detected by means of electromagnetic ultrasonic.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a carbon steel pipeline under pressure elbow wall thickness detects uses electromagnetic ultrasonic probe, and it need not to paint the couplant and can realize the probe and be detected the inseparable combination of pipeline internal surface, has effectively improved detection efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a carbon steel pipeline under pressure elbow wall thickness detects uses electromagnetic ultrasonic probe, includes: the detection device comprises an outer housing, wherein a permanent magnet is arranged in the outer housing, an inner support frame is arranged in the permanent magnet, a lead is arranged in the inner support frame in a penetrating manner, one end of the lead is connected with a detection coil, the other end of the lead is connected with an upper connector, and the upper connector is used for being connected with a host of the electromagnetic ultrasonic detector; the outer wall of the permanent magnet and the outer housing is of a cambered surface structure.
During practical application, carbon steel pipeline under pressure elbow wall thickness detects uses electromagnetic ultrasonic probe, still includes: the positioning block is made of stainless steel, the central hole of the positioning block is provided with internal threads, and the internal threads are used for being connected with the inner support frame so as to fix the permanent magnet on the inner support frame.
The permanent magnet is made of neodymium iron boron; the permanent magnet is provided with a central hole, and the central hole is used for penetrating through the conducting wire.
Specifically, the inner support frame is made of stainless steel; the inner support frame is provided with a central hole, and the central hole is used for penetrating through the lead; the bottom of the inner support frame is provided with a boss, and the boss is used for fixing the permanent magnet; the top region of the inner support frame has an external thread and the external thread matches the internal thread of the locating block.
Further, the detection coil is made of enameled wires, and is fixed on the lower surface of the boss of the inner support frame by using a glue bonding method; and two ends of the detection coil are connected with the conducting wire.
Furthermore, the upper joint is made of stainless steel; the upper joint is provided with a central hole, and the central hole is used for penetrating through the lead; the bottom of the upper joint is connected with the inner support frame through threads, and the top of the upper joint is connected with the electromagnetic ultrasonic detector main machine.
Furthermore, the outer housing is made of room temperature vulcanized silicone rubber insulating materials, the lower portion of the outer housing is an arc-shaped curved surface matched with the arc-shaped surface structure of the permanent magnet, and the upper portion of the outer housing is a cylinder.
Still further, the lower bottom surface of the outer casing can be compressed for shortening the distance between the detection coil and the inner surface of the elbow pipe to be detected.
During actual assembly, the outer housing is sequentially provided with a first type bin, a second type bin, a third type bin, a fourth type bin and a fifth type bin from bottom to top; the first type bin is used for containing the detection coil and the boss of the inner support frame, the second type bin is used for containing the permanent magnet, the third type bin is used for containing the positioning block, the fourth type bin is used for containing the top area of the inner support frame, and the fifth type bin is used for containing the upper joint.
Compared with the prior art, carbon steel pipeline under pressure elbow wall thickness detects and uses electromagnetic ultrasonic probe has following advantage:
in the electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline, the permanent magnet is arranged in the outer housing, the inner support frame is arranged in the permanent magnet, the inner support frame is provided with a lead in a penetrating way, one end of the lead is connected with the detection coil, the other end of the lead is connected with the upper joint, and the upper joint is used for being connected with the electromagnetic ultrasonic detector main machine; the outer wall of permanent magnet and housing is ARC structure, consequently the utility model provides a carbon steel pipeline under pressure elbow wall thickness detects uses electromagnetic ultrasonic probe, through changing probe surface shape, inner structure and electro-magnet shape, the arc probe that also has ARC structure's permanent magnet and housing can guarantee to furthest to press close to the internal surface that is detected the return bend to need not to paint the couplant and can realize the probe and be detected the inseparable bonding of pipeline internal surface, and then effectively improved detection efficiency.
Drawings
Fig. 1 is a schematic perspective structural view of an electromagnetic ultrasonic probe for detecting the wall thickness of an elbow of a carbon steel pressure pipeline provided in an embodiment of the present invention;
fig. 2 is a schematic view of a planar perspective structure of an electromagnetic ultrasonic probe for detecting the wall thickness of an elbow of a carbon steel pressure pipeline provided by an embodiment of the present invention;
fig. 3 is a schematic plan perspective structural view of an internal structure of an electromagnetic ultrasonic probe for wall thickness detection of an elbow of a carbon steel pressure pipeline provided in an embodiment of the present invention;
fig. 4 is a schematic perspective structural view of an outer housing in an electromagnetic ultrasonic probe for wall thickness detection of an elbow of a carbon steel pressure pipeline provided in the embodiment of the present invention;
fig. 5 is a schematic view of a planar perspective structure of an outer housing in an electromagnetic ultrasonic probe for wall thickness detection of an elbow of a carbon steel pressure pipeline provided by an embodiment of the present invention.
Reference numerals:
1-an outer casing; 11-first type bin; 12-second type bin; 13-third type bin; 14-type four bins; 15-type five bins; 2-a permanent magnet; 3-inner support frame; 31-a boss; 4-a detection coil; 5-upper joint; 6-positioning blocks.
Detailed Description
For convenience of understanding, the electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline provided by the embodiment of the invention is described in detail below with reference to the attached drawings.
The embodiment of the utility model provides an electromagnetic ultrasonic probe is used in wall thickness detection of carbon steel pipeline under pressure elbow, as shown in fig. 1-5, include: the detection device comprises an outer housing 1, wherein a permanent magnet 2 is arranged in the outer housing 1, an inner support frame 3 is arranged in the permanent magnet 2, a lead (not shown in the figure) penetrates through the inner support frame 3, one end of the lead is connected with a detection coil 4, the other end of the lead is connected with an upper joint 5, and the upper joint 5 is used for being connected with a host of the electromagnetic ultrasonic detector; the outer walls of the permanent magnet 2 and the outer housing 1 are of cambered surface structures.
Compared with the prior art, the embodiment of the utility model provides a carbon steel pipeline under pressure elbow wall thickness detects and uses electromagnetic ultrasonic probe has following advantage:
in the electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline, the permanent magnet 2 is arranged in the outer housing 1, the inner support frame 3 is arranged in the permanent magnet 2, the inner support frame 3 is provided with a lead in a penetrating way, one end of the lead is connected with the detection coil 4, the other end of the lead is connected with the upper joint 5, and the upper joint 5 is used for being connected with the electromagnetic ultrasonic detector main machine; in particular, the outer wall of permanent magnet 2 and housing 1 is ARC structure, consequently the embodiment of the utility model provides a carbon steel pipeline under pressure elbow wall thickness detects uses electromagnetic ultrasonic probe, through changing probe surface shape, inner structure and electro-magnet shape, also has ARC structure's permanent magnet 2 and housing 1's arc probe can guarantee to the furthest to press close to the internal surface that is detected the return bend to need not to paint the couplant and can realize the probe and be detected the inseparable bonding of pipeline internal surface, and then effectively improved detection efficiency.
During practical application, as shown in fig. 1-5, the embodiment of the utility model provides a carbon steel pipeline under pressure elbow wall thickness detects uses electromagnetic ultrasonic probe can also include: the positioning block 6 is made of stainless steel, and a central hole of the positioning block 6 can be provided with internal threads which are used for being connected with the inner support frame 3 so as to fix the permanent magnet 2 on the inner support frame 3.
As shown in fig. 1 to 5, the permanent magnet 2 may be made of neodymium iron boron; the permanent magnet 2 may have a center hole for penetrating a wire.
Specifically, as shown in fig. 1 to 5, the inner support frame 3 may be made of a stainless steel material; the inner support frame 3 may have a central hole for passing through the wire; the bottom of the inner support frame 3 can be provided with a boss 31, and the boss 31 is used for fixing the permanent magnet 2; the top region of the inner support 3 can have an external thread and this external thread matches the internal thread of the positioning block 6.
Further, as shown in fig. 1 to 5, the detection coil 4 may be made of enameled wire, and the detection coil 4 is fixed to the lower surface of the boss 31 of the inner support frame 3 by gluing; both ends of the detection coil 4 may be connected to the lead wires by soldering.
Still further, as shown in fig. 1 to 5, the upper joint 5 may be made of a stainless steel material; the upper contact 5 may have a central hole for passing a wire therethrough; the bottom of the upper joint 5 can be connected with the inner support frame 3 through threads, and the top of the upper joint 5 can be connected with the electromagnetic ultrasonic detector main machine.
Furthermore, as shown in fig. 1 to 5, the outer casing 1 may be made of room temperature vulcanized silicone rubber insulating material and has elasticity, and the lower portion of the outer casing 1 may be an arc-shaped curved surface matching with the arc-shaped structure of the permanent magnet 2, and the upper portion of the outer casing 1 may be a cylinder.
Still further, as shown in fig. 1 to 5, the lower bottom surface of the outer casing 1 can be compressed to shorten the distance between the detection coil 4 and the inner surface of the elbow to be detected, so as to effectively reduce the lift-off distance of the detection probe, thereby improving the energy conversion efficiency of the electromagnetic ultrasonic probe.
In actual assembly, as shown in fig. 1 to 5, the outer casing 1 may have a first type bin 11, a second type bin 12, a third type bin 13, a fourth type bin 14, and a fifth type bin 15 from bottom to top in sequence, so as to enclose other components in the outer casing 1; the first type bin 11 is used for accommodating the detecting coil 4 and the boss 31 of the inner support frame 3, the second type bin 12 is used for accommodating the permanent magnet 2, the third type bin 13 is used for accommodating the positioning block 6, the fourth type bin 14 is used for accommodating the top area of the inner support frame 3, and the fifth type bin 15 is used for accommodating the upper joint 5.
The following is a detailed description of the assembling process of the electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline provided by the embodiment of the invention with the help of the attached drawings:
(1) connecting the connecting lead with two ends of the detection coil 4 by using a brazing connection mode;
(2) the detection coil 4 is pasted to the lower end part of the inner support frame 3 by glue, and a connecting lead passes through the central hole of the inner support frame 3;
(3) connecting a connecting lead with an inner core of an upper joint 5 by using a brazing connection mode, screwing the upper joint 5 into the inner support frame 3, and connecting the upper joint and the inner support frame by threads;
(4) placing the permanent magnet 2 on the lower end head of the inner support frame 3, and screwing the positioning block 6 into the outer surface of the inner support frame 3 to realize the fixation of the permanent magnet 2;
(5) the curing of the outer envelope 1 is effected by means of a casting mould in a room temperature environment.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a carbon steel pipeline under pressure elbow wall thickness detects uses electromagnetic ultrasonic probe which characterized in that includes: the detection device comprises an outer housing, wherein a permanent magnet is arranged in the outer housing, an inner support frame is arranged in the permanent magnet, a lead is arranged in the inner support frame in a penetrating manner, one end of the lead is connected with a detection coil, the other end of the lead is connected with an upper connector, and the upper connector is used for being connected with a host of the electromagnetic ultrasonic detector; the outer wall of the permanent magnet and the outer housing is of a cambered surface structure.
2. The electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipe as recited in claim 1, further comprising: the positioning block is made of stainless steel, a central hole of the positioning block is provided with internal threads, and the internal threads are used for being connected with the inner support frame so as to fix the permanent magnet on the inner support frame.
3. The electromagnetic ultrasonic probe for detecting the wall thickness of the carbon steel pressure pipeline elbow according to claim 2, wherein the permanent magnet is made of neodymium iron boron; the permanent magnet is provided with a central hole, and the central hole is used for penetrating through the conducting wire.
4. The electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline as recited in claim 2, wherein the inner support frame is made of stainless steel; the inner support frame is provided with a central hole, and the central hole is used for penetrating through the lead; the bottom of the inner support frame is provided with a boss, and the boss is used for fixing the permanent magnet; the top region of the inner support frame has an external thread and the external thread matches the internal thread of the locating block.
5. The electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline according to claim 4, wherein the detection coil is made of enameled wires and is fixed on the lower surface of the boss of the inner support frame by using a glue bonding method; and two ends of the detection coil are connected with the conducting wire.
6. The electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline as recited in claim 1, wherein the upper joint is made of stainless steel; the upper joint is provided with a central hole, and the central hole is used for penetrating through the lead; the bottom of the upper joint is connected with the inner support frame through threads, and the top of the upper joint is connected with the electromagnetic ultrasonic detector main machine.
7. The electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipeline as recited in claim 4, wherein the outer cover shell is made of room temperature vulcanized silicone rubber insulating material, the lower part of the outer cover shell is an arc curved surface matched with the arc surface structure of the permanent magnet, and the upper part of the outer cover shell is a cylinder.
8. The electromagnetic ultrasonic probe for detecting the wall thickness of the elbow of the carbon steel pressure pipe as claimed in claim 7, wherein the lower bottom surface of the outer housing shell is compressible for shortening the distance between the detection coil and the inner surface of the elbow to be detected.
9. The electromagnetic ultrasonic probe for detecting the wall thickness of the carbon steel pressure pipeline elbow as claimed in claim 8, wherein the outer housing is provided with a first type bin, a second type bin, a third type bin, a fourth type bin and a fifth type bin from bottom to top in sequence; the first type bin is used for containing the detection coil and the boss of the inner support frame, the second type bin is used for containing the permanent magnet, the third type bin is used for containing the positioning block, the fourth type bin is used for containing the top area of the inner support frame, and the fifth type bin is used for containing the upper joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220802219.3U CN217384179U (en) | 2022-04-08 | 2022-04-08 | Electromagnetic ultrasonic probe for detecting wall thickness of elbow of carbon steel pressure pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220802219.3U CN217384179U (en) | 2022-04-08 | 2022-04-08 | Electromagnetic ultrasonic probe for detecting wall thickness of elbow of carbon steel pressure pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN217384179U true CN217384179U (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220802219.3U Active CN217384179U (en) | 2022-04-08 | 2022-04-08 | Electromagnetic ultrasonic probe for detecting wall thickness of elbow of carbon steel pressure pipeline |
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| CN (1) | CN217384179U (en) |
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2022
- 2022-04-08 CN CN202220802219.3U patent/CN217384179U/en active Active
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