CN216847627U - Wave guide rod applied to high-temperature, high-pressure and strong-alkali working conditions - Google Patents
Wave guide rod applied to high-temperature, high-pressure and strong-alkali working conditions Download PDFInfo
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- CN216847627U CN216847627U CN202220266386.0U CN202220266386U CN216847627U CN 216847627 U CN216847627 U CN 216847627U CN 202220266386 U CN202220266386 U CN 202220266386U CN 216847627 U CN216847627 U CN 216847627U
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Abstract
The utility model discloses a wave guide rod applied to the working conditions of high temperature, high pressure and strong alkali, which comprises a rod body and a fixed disc; one end of the rod body is fixedly connected with the fixed disc, and the other end of the rod body is provided with a connecting part; an alloy layer is arranged at one end of the connecting part; an alloy layer is arranged on one side which is in contact with the outer wall of the detection object; the alloy layer can ensure that the waveguide rod can be stably fixed on the outer wall of a detection object under the working conditions of high temperature, high pressure and strong alkali, the alloy layer enables the waveguide rod to have excellent corrosion resistance in hydrofluoric acid and fluorine gas media, has excellent corrosion resistance to hot concentrated alkali liquor, resists corrosion of neutral solution, water, seawater, atmosphere and organic compounds, is not easy to generate stress corrosion cracks, and can continuously work under the environment that the highest temperature is 600 ℃ and the corrosion speed is less than 0.026 mm/a.
Description
Technical Field
The utility model relates to an acoustic emission detection area especially relates to a wave guide pole of being applied to under high temperature, high pressure, the strong alkali operating mode.
Background
The phenomenon that a local source in a material quickly releases energy to generate transient elastic waves is called Acoustic Emission (AE), the acoustic emission is a common physical phenomenon, when most materials deform and break, acoustic emission occurs, but the intensity of acoustic emission signals of many materials is very weak, human ears cannot directly hear the acoustic emission signals, the acoustic emission signals can be detected by means of sensitive electronic instruments, and the technology that the acoustic emission signals are detected, recorded and analyzed by instruments and acoustic emission signals are used for deducing acoustic emission sources is called an acoustic emission technology.
Elastic waves emitted from the acoustic emission source eventually propagate to the surface of the material, causing surface displacements that can be detected with acoustic emission sensors, which convert the mechanical vibrations of the material into electrical signals, which are then amplified, processed and recorded, and one analyzes and infers from the observed acoustic emission signals to understand the mechanism by which the material generates the acoustic emissions.
The fixing method of the sensor mainly comprises the modes of mechanical fixing, adhesive fixing and magnetic adsorption fixing. In some cases, the sensor cannot be directly placed on the surface of the detected object, that is, one end of the waveguide rod is fixed on the surface of the detected object, and the acoustic emission sensor is placed on the other end surface, for example, in the environments of high temperature, high pressure, loose low temperature surface and the like, acoustic connection needs to be realized through the waveguide, that is, acoustic emission signals are received through the waveguide rod.
Therefore, a waveguide rod applied to high temperature, high pressure and strong alkali conditions is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali comprises a rod body and a fixed disc; one end of the rod body is fixedly connected with the fixed disc, and the other end of the rod body is provided with a connecting part; an alloy layer is arranged at one end of the connecting part; the fixed disc is used for placing a sensor; the connecting part is used for being fixedly connected with the outer wall of the detection object;
preferably, the disc is of a circular ring structure; the disc is sleeved at one end of the rod body, and the inner ring of the disc is fixedly connected with the outer side wall of the rod body in a spot welding or all-welding mode.
Preferably, the rod body is of a columnar structure.
Preferably, the connecting part is in a circular truncated cone-shaped structure; the bottom surface of connecting portion and body of rod one end fixed connection, the top surface of connecting portion is provided with the alloy-layer.
Preferably, the diameter of the rod body is 30 mm; the thickness of the disc is 2-3 mm; the diameter of the disc is 100 mm; the total length of the waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali is 300 mm; the length of the connecting part is 100 mm; the diameter of the top surface of the connecting part is less than 10 mm. The thickness of the alloy layer is 3-4 mm.
Preferably, the alloy layer is a copper-nickel alloy.
Preferably, the alloy layer structure is a typical single-phase austenite structure.
Preferably, the alloy layer is iron cupronickel.
Owing to adopted above-mentioned technical scheme, the utility model discloses relative prior art, the technological progress who gains is: the wave guide rod applied to the working conditions of high temperature, high pressure and strong alkali is provided with an alloy layer at one side contacted with the outer wall of the detection object; the alloy layer can ensure that the waveguide rod can be stably fixed on the outer wall of a detection object under the working conditions of high temperature, high pressure and strong alkali, the alloy layer enables the waveguide rod to have excellent corrosion resistance in hydrofluoric acid and fluorine gas media, has excellent corrosion resistance to hot concentrated alkali liquor, resists corrosion of neutral solution, water, seawater, atmosphere, organic compounds and the like, is not easy to generate stress corrosion cracks, and can work under the environment that the highest temperature is 600 ℃ and the corrosion speed is less than 0.026 mm/a.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of a waveguide rod applied to a high-temperature, high-pressure and strong-alkali working condition of the present invention;
description of the main elements
| Rod body 1 | |
Connecting |
| Alloy layer 4 | Outer wall 5 of the test object | Weld 6 |
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, a waveguide rod applied to high temperature, high pressure and strong alkali working conditions includes a rod body 1 and a fixed disc 2; one end of the rod body 1 is fixedly connected with the fixed disc 2, and the other end is provided with a connecting part 3; an alloy layer 4 is arranged at one end of the connecting part; the fixed disc 2 is used for placing a sensor; the connecting part 3 is used for being fixedly connected with the outer wall of the detection object;
in the present embodiment, the disc 2 has a circular ring-shaped structure; the disc 2 is sleeved at one end of the rod body 1, and the inner ring of the disc 2 is fixedly connected with the outer side wall of the rod body 1 in a spot welding or all-welding mode;
in the embodiment, the rod body 1 is in a columnar structure;
in the present embodiment, the connecting portion 3 has a circular truncated cone-shaped structure; the bottom surface of the connecting part 3 is fixedly connected with one end of the rod body 1, and the top surface of the connecting part 3 is provided with an alloy layer 4;
in the present embodiment, the diameter of the rod body 1 is 30 mm; the thickness of the disc 2 is 2-3 mm; the diameter of the disc 2 is 100 mm; the total length of the waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali is 300 mm; the length of the connecting part 3 is 100 mm; the diameter of the top surface of the connecting part 3 is less than 10 mm. The thickness of the alloy layer is 3-4 mm.
In this embodiment, the alloy layer 4 is a copper-nickel alloy.
In the present embodiment, the alloy layer 4 structure is a typical single-phase austenite structure.
In this embodiment, the alloy layer 4 comprises 30% Cu, 65% Ni, and 1% -2% Fe, and the alloy layer 4 has excellent corrosion resistance in a hydrofluoric acid and fluorine gas medium, and also has excellent corrosion resistance to hot concentrated alkali. And also resists corrosion by neutral solutions, water, seawater, the atmosphere, organic compounds, and the like. An important feature of the alloy layer 4 is that it is not prone to stress corrosion cracking and has good machinability. The highest temperature of continuous work in the air is generally about 600 ℃, and the corrosion speed is less than 0.026mm/a in high-temperature steam.
When the waveguide rod is applied to the waveguide rod under the working conditions of high temperature, high pressure and strong alkali, the alloy layer 4 is contacted with the outer wall 5 of a detection object, the connecting part 3 and the outer wall 5 of the detection object are welded together by welding, and meanwhile, the side face of the connecting part 3 is covered by the welding seam 6; the wave guide rod applied to the working conditions of high temperature, high pressure and strong alkali is stably fixed on the outer wall 5 of a detection object, and then the sensor is fixedly connected with the disc 2, so that the sensor can be started to detect the detection object.
The dissolution of the Bayer process alumina production is that ore pulp from raw materials is heated to 145-165 ℃ through a single sleeve preheater, then enters a preheating autoclave with mechanical stirring indirect heating, is preheated to about 200 ℃ by secondary steam from a flash tank of a corresponding grade in the preheating autoclave, then enters an indirect heating autoclave with mechanical stirring, is heated to the dissolution temperature of 253-260 ℃ by new steam of 6.0Mpa of a boiler of a thermal power plant, so that alumina hydrate in bauxite reacts with caustic alkali to generate sodium aluminate solution, and finally enters a retention autoclave for 45-60 minutes.
The medium of the autoclave is slurry, secondary steam and high-pressure new steam. The corrosive medium in the slurry is strong alkali and a small amount of CL < - >, S2 < - >; the high-pressure live steam condensate water is alkalescent, and the content of a corrosive medium is very low, which indicates that the high-pressure live steam cannot cause corrosion damage to the tube bundle; the secondary steam condensate is alkaline and contains dissolved salts, which may cause corrosion of cooling water in the slow flow region of the condensate. The waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali can be applied to the detection of the equipment related to the production of alumina by the Bayer process.
The present invention has been described in general terms, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.
Claims (6)
1. The utility model provides a be applied to wave guide pole under high temperature, high pressure, the strong alkali operating mode which characterized in that: the waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali comprises a rod body and a fixed disc; one end of the rod body is fixedly connected with the fixed disc, and the other end of the rod body is provided with a connecting part; an alloy layer is arranged at one end of the connecting part; the fixed disc is used for placing a sensor; the connecting part is used for being fixedly connected with the outer wall of the detection object.
2. The waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali as claimed in claim 1, wherein: the disc is in a circular ring structure; the disc is sleeved at one end of the rod body, and the inner ring of the disc is fixedly connected with the outer side wall of the rod body in a spot welding or all-welding mode.
3. The waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali as claimed in claim 2, wherein: the rod body is of a columnar structure.
4. The waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali as claimed in claim 3, wherein: the connecting part is in a round table-shaped structure; the bottom surface of connecting portion and body of rod one end fixed connection, the top surface of connecting portion is provided with the alloy-layer.
5. The waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali as claimed in claim 4, wherein: the alloy layer is copper-nickel alloy.
6. The waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali as claimed in claim 5, wherein: the diameter of the rod body is 30 mm; the thickness of the disc is 2-3 mm; the diameter of the disc is 100 mm; the total length of the waveguide rod applied to the working conditions of high temperature, high pressure and strong alkali is 300 mm; the length of the connecting part is 100 mm; the diameter of the top surface of the connecting part is less than 10 mm; the thickness of the alloy layer is 3-4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220266386.0U CN216847627U (en) | 2022-02-09 | 2022-02-09 | Wave guide rod applied to high-temperature, high-pressure and strong-alkali working conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220266386.0U CN216847627U (en) | 2022-02-09 | 2022-02-09 | Wave guide rod applied to high-temperature, high-pressure and strong-alkali working conditions |
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| Publication Number | Publication Date |
|---|---|
| CN216847627U true CN216847627U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220266386.0U Active CN216847627U (en) | 2022-02-09 | 2022-02-09 | Wave guide rod applied to high-temperature, high-pressure and strong-alkali working conditions |
Country Status (1)
| Country | Link |
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| CN (1) | CN216847627U (en) |
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- 2022-02-09 CN CN202220266386.0U patent/CN216847627U/en active Active
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