CN217404205U - Magnetic leakage internal detector sensor - Google Patents
Magnetic leakage internal detector sensor Download PDFInfo
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- CN217404205U CN217404205U CN202122589388.1U CN202122589388U CN217404205U CN 217404205 U CN217404205 U CN 217404205U CN 202122589388 U CN202122589388 U CN 202122589388U CN 217404205 U CN217404205 U CN 217404205U
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Abstract
The utility model discloses a magnetic leakage internal detector sensor, wherein a magnetic sensor element is arranged in a long groove at the central position of the length direction in a sensor shell and is positioned and fastened by tools at two sides; the circuit board is arranged at the center position in the thickness direction; the sensor cable is led out from a wire outlet hole on one side surface in the length direction of the sensor shell; and the whole sensor is subjected to epoxy resin glue pouring treatment. The sensor shell is made of nonmagnetic metal materials, the inside of the shell is hollowed and integrally processed, an opening in the bottom surface is used for mounting and glue filling of electrical components, and the top surface and the side surface of the sensor are completely compact and seamless. The utility model discloses can avoid with the pipe wall friction with collide with lead to damaged or deformation problem to can bear the pressure of medium such as oil, gas, water, adapt to high pressure water or contain water and mix ripe submarine pipeline.
Description
Technical Field
The utility model relates to a detect technical field in the pipeline, especially relate to a detector sensor in magnetic leakage.
Background
The detection technology in the pipeline is a high and new technology which is competitively developed in developed countries in Europe and America, and in the detection technology in the common pipeline, the current magnetic leakage internal detection technology belongs to a mainstream detection technology, a magnetic leakage internal detector is a carrier of the magnetic leakage internal detection technology, and a sensor of the magnetic leakage internal detector is one of the most important components.
The sensor of the internal leakage detector can have the following two problems in the actual pipeline operation: the sensor shell is rubbed and collided with the pipe wall for a long time, so that the sensor shell is damaged or deformed and cannot work normally; the sensor works in the medium environment of oil, gas, water and the like for a long time, and needs to bear the pressure of the medium of oil, gas, water and the like, and if the sealing pressure-bearing measure is not in place, the internal circuit or the electrical element can be damaged or water can not normally work due to water inflow.
At present, most of sensors of domestic magnetic flux leakage internal detectors adopt a sensor shell formed by combining ceramic and metal and a sealing pressure-bearing measure filled and sealed by epoxy resin, and ceramic materials can solve the problem of abrasion of the sensor shell to a certain extent and cannot solve the problem of damage caused by collision between the sensor shell and a pipe wall (especially a welding seam welding beading); the combination of ceramics and metals can not realize complete compactness and seamless, generally can only bear lower pressure of insulating media such as oil, gas and the like below 10MPa, and can not adapt to high-pressure water or water-containing mixed-mature submarine pipelines above 10 MPa.
SUMMERY OF THE UTILITY MODEL
The utility model provides a detector sensor in magnetic leakage can avoid with the pipe wall friction with collide with and lead to damaged or deformation problem to can bear the pressure of medium such as oil, gas, water, adapt to high pressure water or contain water and mix ripe submarine pipeline.
The technical scheme of the utility model:
a magnetic leakage inner detector sensor is characterized in that a magnetic sensor element 2 is arranged in a long groove in the central position of the length direction in a sensor shell 1 and is positioned and fastened by tools on two sides; the circuit board 3 is mounted at the center position in the thickness direction; the sensor cable is led out from a wire outlet hole 4 on one side surface of the sensor shell 1 in the length direction; and (5) performing epoxy resin glue filling treatment on the whole sensor, and drying to obtain a sensor finished product.
Further, the sensor shell 1 is made of a non-magnetic metal material, the inside of the non-magnetic metal material is hollowed and integrally processed, an opening in the bottom surface is used for mounting and glue filling of electrical components, and the top surface and the side surface of the sensor are completely compact and seamless.
Further, the thickness of the shell on the top surface of the long groove is 1 mm; the wire outlet 4 of the sensor housing 1 is a U-shaped opening, and the diameter of the U-shaped opening corresponds to the size of the cable.
The utility model has the advantages that:
1. the shell material of the magnetic flux leakage internal detector sensor is formed by integrally hollowing and processing the inside of a non-magnetic metal material, and the problem of damage or deformation caused by friction and collision (especially weld beading) between the shell material and a pipe wall can be solved through actual detection and application in a pipeline;
2. the top surface and the side surface of the sensor are completely compact seamless metals, and the sensor is matched with a two-step integral glue pouring process, and the sensor works completely normally through a 15MPa oil and water medium pressure pressurizing test, and can realize 15MPa sealed pressure bearing.
Drawings
FIG. 1 is a schematic diagram of a sensor structure;
FIG. 2 is a schematic view of a sensor housing.
In the figure: 1-sensor shell, 2-magnetic sensor element, 3-circuit board, 4-outlet hole.
Detailed Description
The utility model provides a magnetic leakage internal detector sensor, as shown in figure 1, a magnetic sensor element 2 is arranged in a long groove at the central position of the length direction in a sensor shell 1 shown in figure 2, and is positioned and fastened by tools at two sides; the circuit board 3 is mounted at the center position in the thickness direction; the sensor power supply and signal cable is led out from one side surface (the side of the sensor cable outlet hole 4 shown in figure 2) in the length direction; and (5) performing epoxy resin glue filling treatment on the whole sensor, and drying to obtain a sensor finished product.
As shown in fig. 2, the utility model discloses sensor housing 1 material is formed for the inside integrated processing of undercutting of non-magnetic metal material, and the bottom surface opening is so that electric parts's installation and encapsulating, and sensor top surface and side are the seamless metal cooperation bottom surface encapsulating of full compactness, realize the sealed pressure-bearing of 15 MPa. The magnetic sensor element 2 is arranged in the elongated slot, is positioned and fastened by tools on two sides, and the thickness of the shell on the top surface of the elongated slot is 1 mm; the thickness of the top surface of the elongated slot can achieve a better detection effect through practical tests, and meanwhile, the problem of damage or deformation caused by friction and collision with the tube wall can be avoided. The sensor cable outlet hole 4 is a U-shaped opening, and the diameter of the U-shaped opening is exactly corresponding to the size of the cable.
The utility model discloses a sensor encapsulating divides two steps to realize altogether, at first, before the encapsulating, install magnetic sensor component 2 inside casing 1, be connected magnetic sensor and sensor cable and circuit board 3, sensor cable and circuit board 3 stay outside casing 1 earlier, pour into epoxy glue to the position of U type opening into casing 1 inside, let glue fully complete flow to every position inside the sensor casing, do not leave any space; then, the sensor cable and the circuit board 3 are installed inside the shell 1, the sensor cable is clamped into the U-shaped opening, then glue is continuously poured until the sensor cable and the circuit board 3 are completely covered, and a sensor finished product is obtained after drying after glue pouring. The advantage of dividing two steps of encapsulating is that it is inhomogeneous to avoid gluing to flow, causes to fill between circuit board 3 and the 1 top surface of casing not really, influences the sealed bearing capacity of sensor.
The utility model can solve the problem of damage or deformation caused by friction and collision (especially welding seam welding beading) between the magnetic leakage internal detector sensor and the pipe wall through the practical in-pipe detection application; through the pressure test of 15MPa oil and water medium, the working is completely normal, 15MPa sealing bearing can be realized, and the application requirement of 15MPa high-pressure water or water-containing mixed-well submarine pipelines is met.
The foregoing description of the preferred embodiments of the invention is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. Therefore, the protection scope of the present invention is not limited to these solutions and details, and those skilled in the art can make modifications or equivalent substitutions to these solutions and details without departing from the basic principle of the present invention, and the modified or substituted embodiments will also fall within the protection scope of the present invention.
Claims (3)
1. A magnetic leakage inner detector sensor is characterized in that a magnetic sensor element (2) is installed in a long groove in the center of the length direction in a sensor shell (1) and is positioned and fastened by tools on two sides; the circuit board (3) is arranged at the center position in the thickness direction; the sensor cable is led out from a wire outlet hole (4) on one side surface of the sensor shell (1) in the length direction.
2. The magnetic flux leakage internal detector sensor according to claim 1, wherein the sensor housing (1) is made of a non-magnetic metal material, the inside of the sensor housing is hollowed and integrally processed, the bottom surface of the sensor housing is opened for mounting and glue pouring of electrical components, and the top surface and the side surfaces of the sensor housing are completely compact and seamless.
3. A magnetic flux leakage internal detector sensor according to claim 2, wherein the thickness of the housing at the top surface of the elongated slot is 1 mm; the wire outlet hole (4) of the sensor shell (1) is a U-shaped opening, and the diameter of the U-shaped opening corresponds to the size of the cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122589388.1U CN217404205U (en) | 2021-10-27 | 2021-10-27 | Magnetic leakage internal detector sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122589388.1U CN217404205U (en) | 2021-10-27 | 2021-10-27 | Magnetic leakage internal detector sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217404205U true CN217404205U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122589388.1U Active CN217404205U (en) | 2021-10-27 | 2021-10-27 | Magnetic leakage internal detector sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217404205U (en) |
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2021
- 2021-10-27 CN CN202122589388.1U patent/CN217404205U/en active Active
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