Probe fixing device for high-temperature stainless steel storage tank

Abstract

The utility model discloses a probe fixing device for a high-temperature stainless steel storage tank, which belongs to the technical field of ultrasonic detection of the storage tank, can avoid the influence of high temperature of the storage tank on a probe, and comprises a mounting bracket and a fastening component, the installation support is provided with an inner fixing plate extending into the inner side of the edge of the detection window and a probe isolation structure arranged corresponding to the central area of the detection window, a threaded hole is formed in the area, corresponding to the detection window, of the inner fixing plate, and the probe isolation structure comprises a fixing cylinder and a probe hole. The head end of the probe hole is close to the outer side surface of the storage tank, and the rear end is communicated with the fixed sleeve; the fastening assembly comprises an outer fixing plate and a fastening screw, a fixing hole is formed in the outer fixing plate, the fastening screw penetrates through the fixing hole to be connected with the threaded hole, and the outer fixing plate and the inner fixing plate are matched, clamped and fixed to the edge of the detection window.

Description

Technical field

[0001] The utility model belongs to the technical field of ultrasonic detection of storage tanks, and particularly relates to a probe fixing device for ultrasonic detection of high-temperature stainless steel storage tanks. [Background Technology]

[0002] Stainless steel storage tanks are widely used in the food and chemical industries. High-temperature stainless steel tanks are covered by an outer shell with an insulating layer between them. As tanks age, they are likely to corrode. If not detected and addressed promptly, this can pose a significant safety hazard.

[0003] Acoustic emission testing, a common nondestructive testing technique, has been applied to damage detection in stainless steel storage tanks. The principle of acoustic emission testing is based on the propagation characteristics of sound waves within a test specimen. a. A sound source within the tank generates an ultrasonic signal, which is then directed into the test specimen using a specific method. b. The ultrasonic signal propagates through the metal tank walls, floor, and other surfaces. c. The ultrasonic signal is received by the testing equipment—the sensor—and processed and analyzed. d. Based on the characteristics of the received ultrasonic signal, the presence and characteristics of defects within the test specimen are evaluated.

[0004] Since there's no fixed structure for acoustic emission detection devices on the outside of stainless steel tanks, they're typically secured by suction. For example, Chinese utility model patent No. 216646353U discloses an ultrasonic detection device for pressure vessels and storage tanks. The device comprises a portable detector body and a detection probe connected to a plug-in interface on the top wall of the detector body via a cable. The detector body's two side walls are provided with waist-shaped chutes, within which a slider is slidably connected. A rotating shaft is fixed to the outside of the slider, and the two rotating shafts are rotatably connected to the open ends of a U-shaped protective handle. A protective groove is provided inside the closed end of the protective handle. When the protective handle is rotated to its closed end facing upward, the protective groove covers the top of the detector body. When the protective handle is rotated to the rear of the detector body, it supports the detector body. A removable suction mechanism is attached to the rear wall of the detector body. Advantageously, the protective handle can be rotated to one angle to cover the top of the detector, protecting the plug-in interface. When rotated to another angle, it can serve as a support leg for the detector body. The suction mechanism can also secure the detector body when needed. However, since high-temperature stainless steel storage tanks are usually cylindrical tanks with an arc-shaped outer wall, they are unstable in fixation.

[0005] In addition, for high-temperature stainless steel storage tanks, the temperature of the outer surface is generally 200-300℃, and the acoustic emission detection probe cannot directly contact it, otherwise the probe is at risk of being damaged by the high temperature. [Utility Model Content]

[0006] In view of the deficiencies in the existing technology, the technical problem to be solved by the present invention is to provide a probe fixing device for high-temperature stainless steel storage tanks, which is convenient, fast and reliable in fixing, while avoiding damage to the probe caused by high temperature.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A probe fixing device for a high-temperature stainless steel storage tank, wherein an outer shell is covered on the outer side of the storage tank, a detection window is opened on the outer shell, and the probe fixing device is fixed to the detection window, and the probe fixing device comprises:

[0009] A mounting bracket is provided with an inner fixing plate extending into the inner side of the edge of the detection window and a probe isolation structure provided in the central area of ​​the detection window. The inner fixing plate is provided with a threaded hole in the detection window area. The probe isolation structure includes a fixing cylinder and a detection hole. The fixing cylinder is used to place the acoustic emission detection probe and is isolated from the storage tank. The head end of the detection hole is close to the outer side of the storage tank and the rear end is connected to the fixing sleeve for allowing ultrasonic waves to pass through.

[0010] The fastening assembly includes an outer fixing plate and a fastening screw. The outer fixing plate is provided with a fixing hole. The fastening screw passes through the fixing hole and is connected with the threaded hole, so that the outer fixing plate and the inner fixing plate are clamped and fixed to the edge of the detection window.

[0011] Preferably, the mounting bracket includes two fixing bars arranged side by side with a spacing space provided between the two fixing bars, and the inner fixing plates are provided at both ends of the length of the fixing bars.

[0012] Preferably, both ends of the length of the fixing strip are provided with bending portions that bend laterally; and / or, the mounting bracket further comprises a base plate, the fixing strip is fixed to the base plate, and the base plate is provided with a through hole connected to the detection hole.

[0013] Preferably, a U-shaped bridge is provided on the outer side of the substrate, comprising a top edge and side edges, wherein the free ends of the side edges are connected to the substrate, and a through hole connected to the detection hole is provided on the top edge.

[0014] Preferably, the fixing strip is fixed to the base plate by means of bolts; and / or the fastening screw is provided with a knob.

[0015] Preferably, the detection hole is a hollow rod.

[0016] Preferably, the fixed cylinder includes a cylinder body and a cylinder cover, the cylinder bottom at one end of the cylinder body is connected to the rod body, and the cylinder mouth at the other end is connected to the cylinder cover, the cylinder body is used to accommodate the acoustic emission detection probe, and the acoustic emission detection probe is fixed in the cylinder body by the cylinder cover.

[0017] Preferably, the cylinder cover is threadedly connected to the cylinder body.

[0018] Preferably, the rod body is a stainless steel tube, the cylinder body and the cylinder cover are made of stainless steel, and the rod body and the cylinder body are welded.

[0019] Preferably, the detection window is a rectangular structure.

[0020] The utility model adopts the above technical solution, which has the following beneficial effects:

[0021] Designed specifically for high-temperature stainless steel storage tanks, the outer shell of the tank is covered with a space between the outer shell and the outer surface of the tank, allowing for a detection window to be opened in the outer shell. The probe fixture is secured to the detection window. The mounting bracket utilizes this space to include an inner fixing plate that extends into the inner edge of the detection window. The inner fixing plate has threaded holes corresponding to the detection window area. Fastening screws pass through the fixing holes on the outer fixing plate and connect with the threaded holes on the inner fixing plate. The outer and inner fixing plates cooperate to clamp and secure the mounting bracket to the detection window, allowing for quick and reliable fastening.

[0022] In addition, in order to avoid damage to the probe caused by the high temperature of the storage tank, a probe isolation structure is set up, which includes a fixed tube and a detection hole, wherein the fixed tube is at a certain distance from the outer side of the storage tank and is used to place the acoustic emission detection probe and isolate it from the storage tank. Although the acoustic emission detection probe is isolated from the storage tank, since the head end of the detection hole is close to the outer side of the storage tank and the rear end is connected to the fixed sleeve, the detection hole can allow ultrasonic waves to pass through, which not only avoids the influence of the high temperature of the storage tank on the probe, but also does not affect the normal detection of the acoustic emission detection probe.

[0023] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0024] The utility model is further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a front view of the mounting bracket fixed to the detection window in Example 1 (without the external fixing plate installed);

[0026] Figure 2 It is a cross-sectional view of the mounting bracket fixed to the detection window in Example 1;

[0027] Figure 3 This is a schematic diagram of the fixing and isolation structure of the acoustic emission detection probe;

[0028] Figure 4 This is a side view of the mounting bracket fixed to the detection window in Example 2;

[0029] Figure 5 This is a front view of the mounting bracket fixed to the detection window in Example 3;

[0030] Figure numerals: outer shell 1, detection window 100, fixing bar 2, inner fixing plate 21, threaded hole 22, bending portion 23, base plate 3, U-shaped bridge 31, locking nut 32, outer fixing plate 4, fastening screw 5, knob 51, acoustic emission detection probe 6, cylinder 7, rod 8, cylinder cover 9, rotating operating handle 91. [Specific implementation method]

[0031] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0032] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0033] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. For example, the terms "upper," "lower," "inner," and "outer" used below to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be understood as limiting the utility model.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] Example 1

[0036] Reference Figures 1 to 3As shown, this embodiment provides a probe fixing device for a high-temperature stainless steel storage tank. The outer side of the storage tank is covered with an outer shell 1, and a detection window 100 is opened on the outer shell 1. The probe fixing device is fixed to the detection window 100. The probe fixing device includes:

[0037] The mounting bracket is provided with an inner fixing plate 21 extending into the inner side of the edge of the detection window and a probe isolation structure arranged in the central area of ​​the corresponding detection window. The inner fixing plate 21 is provided with a threaded hole 22 in the corresponding detection window area. The probe isolation structure includes a fixing tube and a detection hole. The fixing tube is used to place the acoustic emission detection probe and is isolated from the storage tank. The head end of the detection hole is close to the outer side of the storage tank and the rear end is connected to the fixing sleeve for allowing ultrasonic waves to pass through.

[0038] The fastening assembly includes an outer fixing plate 4 and a fastening screw 5. The outer fixing plate 4 is provided with a fixing hole. The fastening screw 5 passes through the fixing hole and is connected to the threaded hole 22, so that the outer fixing plate 4 and the inner fixing plate 22 are clamped and fixed to the edge of the detection window.

[0039] The head end of the detection hole is close to the outer side of the tank, and can be separated by a small distance or in direct contact to ensure normal detection.

[0040] Designed specifically for high-temperature stainless steel storage tanks, the outer shell of the tank is covered with a space between the outer shell and the tank's exterior, allowing for a detection window to be created in the outer shell. The probe fixture is secured to the detection window. The mounting bracket utilizes this space to include an inner fixing plate that extends into the inner edge of the detection window. Fastening screws pass through fixing holes in the outer fixing plate and connect with threaded holes in the inner fixing plate. The outer and inner fixing plates cooperate to clamp and secure the mounting bracket to the detection window, securing it to the detection window.

[0041] In addition, in order to avoid damage to the probe caused by high temperature, a probe isolation structure is set up, which includes a fixed tube and a detection hole, wherein the fixed tube is at a certain distance from the outer side of the storage tank, which is used to place the acoustic emission detection probe and isolate it from the storage tank. Although the acoustic emission detection probe is isolated from the storage tank, since the head end of the detection hole is close to the outer side of the storage tank and the rear end is connected to the fixed sleeve, the detection hole can allow ultrasonic waves to pass through, which not only avoids the influence of the high temperature of the storage tank on the probe, but also does not affect the normal detection of the acoustic emission detection probe.

[0042] In this embodiment, the mounting bracket includes two fixing bars 2 arranged side by side with a space provided between the two fixing bars 2. The inner fixing plates 21 are provided at both ends of the length of the fixing bars and are integrally provided with the fixing bars.

[0043] Furthermore, the mounting bracket includes a base plate 3, to which the fixing bar 2 is fixed. The base plate 3 is provided with a through hole connected to the detection hole. To secure the mounting bracket, the mounting bracket is first fixed to the detection window, with the fixing bar movable within the space inside the detection window. The inner fixing plates at both ends of the fixing bar are extended into the inner side of the detection window edge, while the threaded holes are exposed in the detection window. The outer fixing plates are then placed, and the fastening screws are placed and tightened.

[0044] As one of the embodiments, the fixing strip 2 is fixed to the base plate 3 by bolts, and can also be fixed by welding, riveting, etc.

[0045] Preferably, the fastening screw 5 is provided with a knob 51 to facilitate the rotation of the fastening screw to achieve the fixing and disassembly of the fastening assembly.

[0046] As one embodiment, the detection hole is a hollow rod 8. The fixed cylinder includes a cylinder body 7 and a cylinder cover 9. The bottom of one end of the cylinder body is connected to the rod body 8, and the cylinder mouth of the other end is connected to the cylinder cover 9. The cylinder body 7 is used to accommodate the acoustic emission detection probe 6, and the acoustic emission detection probe 6 is fixed in the cylinder body by the cylinder cover 9.

[0047] In order to fix the acoustic emission detection probe, the cylinder cover 9 is threadedly connected to the cylinder body 7, and a rotating operating handle 91 is provided on the cylinder cover, which facilitates the fixation of the acoustic emission detection probe. The rod body 8 is a stainless steel tube, and the cylinder body 7 and the cylinder cover 9 are made of stainless steel. The rod body 8 is welded to the cylinder body 7.

[0048] In this embodiment, the detection window is a rectangular structure, which is convenient for fixing with the mounting bracket.

[0049] Example 2

[0050] like Figure 4 As shown, based on the first embodiment, a U-shaped bridge 31 is provided on the outer side of the substrate 3, which can be a steel part, including a top edge and a side edge, and the free end of the side edge is connected to the substrate, for example, by welding, and a through hole connected to the detection hole is provided on the top edge.

[0051] Furthermore, an external thread is provided on the outside of the rod body of the detection hole, and the external thread part passes through the through hole on the top edge, and locking nuts 32 are connected on both sides to fix it to the U-shaped bridge 31. In this way, after the rod body is fixed to the U-shaped bridge 31, the fixing cylinder is also fixed.

[0052] Example 3

[0053] like Figure 5As shown, based on the first embodiment, the fixing bar 2 is further improved by having two lateral bends 23 at each end. This results in an L-shaped end portion and an outwardly facing U-shaped overall shape. The corresponding outer fixing plate 4 can be designed as an L-shaped structure, which, in conjunction with the bends 23, increases the clamping area and improves fixing reliability.

[0054] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art will understand that the utility model includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the utility model are intended to be included within the scope of the claims.

Claims

1. A probe fixing device for a high-temperature stainless steel storage tank, wherein the outer surface of the storage tank is covered with an outer shell, and a detection window is opened on the outer shell, characterized in that: The probe fixing device is fixed to the detection window, and the probe fixing device includes: A mounting bracket is provided with an inner fixing plate extending into the inner side of the edge of the detection window and a probe isolation structure provided in the central area of ​​the detection window. The inner fixing plate is provided with a threaded hole in the detection window area. The probe isolation structure includes a fixing cylinder and a detection hole. The fixing cylinder is used to place the acoustic emission detection probe and is isolated from the storage tank. The head end of the detection hole is close to the outer side of the storage tank and the rear end is connected to the fixing sleeve for allowing ultrasonic waves to pass through. The fastening assembly includes an outer fixing plate and a fastening screw. The outer fixing plate is provided with a fixing hole. The fastening screw passes through the fixing hole and is connected with the threaded hole, so that the outer fixing plate and the inner fixing plate are clamped and fixed to the edge of the detection window.

2. The probe fixing device for a high-temperature stainless steel storage tank according to claim 1, characterized in that: The mounting bracket includes two fixing bars arranged side by side with a spacing space provided between the two fixing bars, and the inner fixing plates are arranged at both ends of the length of the fixing bars.

3. The probe fixing device for a high-temperature stainless steel storage tank according to claim 2, characterized in that: The fixing strip has two ends with bent portions bent laterally; and / or the mounting bracket further comprises a base plate, the fixing strip is fixed to the base plate, and the base plate is provided with a through hole connected to the detection hole.

4. The probe fixing device for a high-temperature stainless steel storage tank according to claim 3, characterized in that: A U-shaped bridge is provided on the outer side of the base plate, comprising a top edge and side edges, wherein the free ends of the side edges are connected to the base plate, and a through hole connected to the detection hole is provided on the top edge.

5. The probe fixing device for a high-temperature stainless steel storage tank according to claim 3, characterized in that: The fixing strip is fixed to the base plate by means of bolts; and / or the fastening screw is provided with a knob.

6. The probe fixing device for a high-temperature stainless steel storage tank according to claim 1, characterized in that: The detection hole is a hollow rod body.

7. The probe fixing device for a high-temperature stainless steel storage tank according to claim 6, characterized in that: The fixed cylinder includes a cylinder body and a cylinder cover. The cylinder bottom at one end of the cylinder body is connected to the rod body, and the cylinder mouth at the other end is connected to the cylinder cover. The cylinder body is used to accommodate the acoustic emission detection probe, and the acoustic emission detection probe is fixed in the cylinder body by the cylinder cover.

8. The probe fixing device for a high-temperature stainless steel storage tank according to claim 7, characterized in that: The cylinder cover is threadedly connected to the cylinder body.

9. The probe fixing device for a high-temperature stainless steel storage tank according to claim 8, characterized in that: The rod body is a stainless steel tube, the cylinder body and the cylinder cover are made of stainless steel, and the rod body and the cylinder body are welded.

10. The probe fixing device for a high-temperature stainless steel storage tank according to claim 1, characterized in that: The detection window is a rectangular structure.

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