Acoustic emission detection auxiliary positioning mechanism of hydrogen pipeline valve

Abstract

The utility model relates to the technical field of acoustic emission probe auxiliary equipment, in particular to an acoustic emission detection auxiliary positioning mechanism of a hydrogen pipeline valve, which comprises an acoustic emission probe positioning part and a valve opening positioning part, and the acoustic emission probe positioning part comprises a connecting plate and a clamping ring arranged at the bottom of the connecting plate. A plurality of first mounting holes and sliding positioning blocks are arranged on the surface of the connecting plate, the sliding positioning blocks are arranged corresponding to the first mounting holes, and the sliding positioning blocks are detachably connected with locking pieces; the valve opening positioning part is arranged in the middle of the connecting plate and comprises a second mounting hole and a positioning disc, the positioning disc is arranged on the surface of the connecting plate, and opening scales are arranged on the surface of the positioning disc. On one hand, the acoustic emission probe can be conveniently disassembled and assembled, the operation is more convenient, and on the other hand, the opening degree of the valve can be positioned to be more accurately adjusted, so that a more accurate detection effect is obtained.

Description

Technical Field

[0001] This utility model relates to the field of acoustic emission detection auxiliary equipment technology, and in particular to an acoustic emission detection auxiliary positioning mechanism for hydrogen pipeline valves. Background Technology

[0002] Hydrogen pipelines are often equipped with valves to regulate the gas flow rate. However, after prolonged use, damage may occur at the weld seams or defects may develop in the valve core. Because gas-controlled valves operate at high pressures, internal defects in the valve body can seriously compromise production safety. Therefore, acoustic emission equipment is currently used for non-destructive testing of hydrogen pipeline valves.

[0003] To ensure accuracy, acoustic emission data is typically collected from multiple locations on the pressure pipeline on both sides of the valve. Therefore, multiple acoustic emission detection probes are often installed and simultaneously fixed at multiple locations on the pressure pipeline, allowing for the simultaneous collection of multiple sets of acoustic emission data, thus improving detection efficiency. Currently, such as Figure 1 As shown, in practice, tape is often used to fix the acoustic emission probe. This method not only has poor fixing effect, but it is also inconvenient to remove the acoustic emission probe. Due to the stickiness of the tape, it is easy to leave adhesive residue, causing pollution on the pipe surface, and it requires considerable force to remove. In addition, during acoustic emission testing, the valve opening needs to be adjusted to obtain acoustic emission data at different valve opening states in order to improve the probability of defect detection. Currently, relying solely on manual adjustment of the valve opening by staff results in insufficient precision, affecting the accuracy of acoustic emission testing. Utility Model Content

[0004] The purpose of this invention is to propose an auxiliary positioning mechanism for acoustic emission detection of hydrogen pipeline valves. It is characterized by its ease of use, convenient positioning of the acoustic emission probe, and accurate positioning of the valve opening, which helps to improve the efficiency and accuracy of acoustic emission detection.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An acoustic emission detection auxiliary positioning mechanism for a hydrogen pipeline valve includes an acoustic emission probe positioning part and a valve opening positioning part. The acoustic emission probe positioning part includes a connecting plate and a snap ring disposed at the bottom of the connecting plate. The surface of the connecting plate is provided with a plurality of first mounting holes and sliding positioning blocks. The sliding positioning blocks are disposed corresponding to the first mounting holes and are detachably connected to locking elements. The valve opening positioning part is disposed in the middle of the connecting plate and includes a second mounting hole and a positioning plate. The positioning plate is disposed on the surface of the connecting plate and the surface of the positioning plate is provided with opening scale.

[0007] Further, the valve opening positioning part further comprises a rotating disc, a positioning column is vertically arranged on the surface edge of the rotating disc, the rotating disc is concentric with the positioning disc and is arranged on the top of the positioning disc, and the bottom surface of the positioning disc is uniformly arranged with a plurality of stoppers and sliding grooves in sliding cooperation with the stoppers.

[0008] Further, the inner bottom wall of the sliding groove is provided with an elastic element, and two ends of the elastic element are connected with the stopper and the inner bottom wall of the sliding groove respectively.

[0009] Further, the stopper corresponds to the opening scale of the valve opening, the bottom of the positioning column protrudes to the convex part of the positioning disc, and the stopper can block the positioning column.

[0010] Further, arc-shaped grooves are arranged on both sides of the head end of the stopper, and the arc-shaped grooves can contact part of the structure of the bottom of the positioning column.

[0011] Further, the clamping ring comprises a first ring body and a second ring body, and a telescopic plate is arranged between the first ring body and the second ring body, and the top of the telescopic plate is connected with the bottom of the connecting plate.

[0012] Further, the first ring body and the second ring body are both provided with a locking port at an end away from the telescopic plate, and a locking element is detachably arranged at the locking port.

[0013] Further, the sliding positioning block comprises a first sliding block and a second sliding block, and threads are arranged on the surfaces of the first sliding block and the second sliding block, so that the first sliding block and the second sliding block can be combined to form the sliding positioning block.

[0014] Further, the locking element is a nut.

[0015] The technical scheme provided by the utility model can have the following beneficial effects:

[0016] The utility model provides a kind of acoustic emission detection auxiliary positioning mechanism of hydrogen pipeline valve, by setting acoustic emission probe positioning part and valve opening positioning part, on the one hand, the dismounting of acoustic emission probe can be facilitated, it is more convenient to operate, on the other hand, the opening of valve can be positioned, to more accurately adjust the opening of valve, and then more accurate detection effect is obtained;Wherein, by the setting of sliding positioning block, staff can easily position acoustic emission probe, and the setting of positioning disc can make staff more intuitive to observe the opening of valve, and adjustment is more flexible and accurate. ACCURACY

[0017] Figure 1 It is the overall structure schematic diagram of an embodiment of the utility model;

[0018] Figure 2 It is the overhead structure schematic diagram of an embodiment of the utility model;

[0019] Figure 3is a structure schematic view of the clamping ring of an embodiment of the utility model;

[0020] Figure 4 is an assembly structure schematic view between the positioning mechanism and the pipeline of an embodiment of the utility model;

[0021] Figure 5 is the utility model Figure 1 A partial close-up view at.

[0022] Reference signs:

[0023] 10 acoustic emission probe positioning part;11 connecting plate;12 clamping ring;121 first ring body;122 second ring body;123 telescopic plate;124 locking port;125 locking piece;13 first mounting hole;14 sliding positioning block;141 first sliding block, 142 second sliding block;15 locking piece;

[0024] 20 valve opening degree positioning part;21 second mounting hole;22 positioning disc;23 opening scale;24 rotating disc;25 positioning column;26 stopper;27 sliding groove;

[0025] 30 pipeline;31 valve;33 acoustic emission probe. DETAILED DESCRIPTION

[0026] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and can not be understood as the limitation of the utility model.

[0027] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore can not be understood as the limitation of the utility model. In addition, the features limited by "first", "second" can explicitly or implicitly include one or more features, used to distinguish the described features, without order, without light and heavy.

[0028] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The following is combined Figures 1 to 5 This invention describes an acoustic emission detection auxiliary positioning mechanism for a hydrogen pipeline valve provided in an embodiment of the present invention. The mechanism includes an acoustic emission probe positioning part 10 and a valve opening positioning part 20. The acoustic emission probe positioning part 10 includes a connecting plate 11 and a snap-fit ​​ring 12 disposed at the bottom of the connecting plate 11. The surface of the connecting plate 11 is provided with a plurality of first mounting holes 13 and sliding positioning blocks 14. The sliding positioning blocks 14 are disposed corresponding to the first mounting holes 13 and are detachably connected to locking members 15. The valve opening positioning part 20 is disposed in the middle of the connecting plate 11 and includes a second mounting hole 21 and a positioning plate 22. The positioning plate 22 is disposed on the surface of the connecting plate 11, and the surface of the positioning plate 22 is provided with opening scale 23.

[0031] Among them, such as Figure 1 and Figure 2 As shown, multiple first mounting holes are evenly spaced. The acoustic emission probe can pass through the first mounting holes 13 and be fixed by sliding positioning blocks 14. The sliding positioning blocks 14 include a first sliding block 141 and a second sliding block 142. The two sliding blocks are slidably engaged with the connecting plate 11. When the first sliding block and the second sliding block are joined together, the first mounting hole 13 is formed between them. The surfaces of the first sliding block and the second sliding block are respectively provided with threads for installing locking members 15.

[0032] In use, the first sliding block and the second sliding block can be manually pulled apart to open the first mounting hole 13, so that the acoustic emission probe can pass through the first mounting hole 13. Then, the first sliding block and the second sliding block can be pushed closer to each other so that the first mounting hole 13 is positioned for the acoustic emission probe.

[0033] Understandably, the first sliding block 141 and the second sliding block 142 have a positioning structure between themselves and the connecting plate 11. The positioning structure can be a number of protrusions arranged along the sliding direction to increase the friction between the sliding block and the connecting plate. Alternatively, the positioning structure can be a spring clip fixed on the sliding block to position the sliding block on the connecting plate 11.

[0034] To further improve the positioning effect, this utility model also includes a locking element 15 to secure the sliding positioning block 14, such as...Figure 4 As shown, the sliding positioning block 14 formed by the combination of the first sliding block and the second sliding block close to the fitting forms a stud-like structure. Before the acoustic emission probe 33 is placed in the first mounting hole 13, the locking member 15 can be sleeved on the signal line at the end of the acoustic emission probe 33. The locking member 15 can adopt a nut structure, so as to be sleeved on the outer edge of the sliding positioning block 14 and be tightened for locking. In this way, the locking effect is improved, and the disassembly and assembly are facilitated, and the operation is more convenient.

[0035] Further, as shown in Figure 3 The valve opening positioning part 20 further comprises a rotating disc 24, and a positioning column 25 is vertically arranged on the surface edge of the rotating disc 24. The rotating disc 24 is concentric with the positioning disc 22 and is arranged on the top of the positioning disc 22. The bottom surface of the positioning disc 22 is uniformly arranged with a plurality of stoppers 26 and a sliding groove 27 in sliding cooperation with the stoppers 26.

[0036] It should be noted that, in order to facilitate the positioning between the entire positioning mechanism and the pipeline 30, and to avoid the position of the valve 31, in an embodiment, the positioning disc 22 and the rotating disc 24 are both hollow structures. The hollow part facilitates the passage of the rotating handle of the valve 31, and facilitates assembly.

[0037] As shown in Figure 1 and Figure 3 The positioning column 25 can protrude towards the top and be slightly higher than the height of the valve 31, so that when the valve 31 is pushed, the positioning column 25 can be moved, and the angle of the opening and the positioning of the opening of the valve 31 can be better judged through the positioning column 25.

[0038] For the structure of the positioning column 25, in an embodiment, the positioning column 25 is a combined structure of two columns, and the columns have a gap. The gap can accommodate the valve 31, so that the valve 31 can push the positioning column 25 to move when it rotates clockwise and counterclockwise.

[0039] In another embodiment, the positioning column 25 is provided with a placing opening, and the valve 31 can pass through the placing opening, so that the positioning column 25 and the valve 31 are connected with each other, and the valve 31 can also push the positioning column 25 to move when it rotates clockwise and counterclockwise.

[0040] Further, as shown in Figure 1 and Figure 5As shown, the inner bottom wall of the sliding groove 27 is provided with an elastic member, and the two ends of the elastic member are connected with the stopper 26 and the inner bottom wall of the sliding groove 27 respectively. In the specific use process, first, the auxiliary positioning mechanism is installed in place, and the valve 31 can be linked with the positioning column 25. In the detection process, when adjusting the opening degree of the valve 31, the valve 31 pushes the positioning column 25 to move, and the positioning column 25 drives the rotating disc 24 to rotate. Since the stopper 26 corresponds to the opening degree scale 23 of the opening degree of the valve 31, the bottom of the positioning column 25 protrudes to the convex part of the positioning disc 22, and the stopper 26 can block the positioning column 25, so that when the positioning column 25 moves to a certain scale, the positioning column 25 is stopped by the stopper 26, achieving accurate control and positioning of the opening degree. Moreover, since the stopper 26 is connected with the elastic member in the sliding groove 27, when it is necessary to adjust to other opening degrees, the worker applies a certain force, and the positioning column 25 can press the stopper 26 into the sliding groove 27, so that the positioning column 25 and the valve 31 can continue to rotate. When the positioning column 25 leaves the scale area, the stopper 26 rebounds due to the elastic force of the elastic member, reducing the phenomenon of accidental touch of the valve 31, and the positioning effect is more accurate.

[0041] It can be understood that the head end of the stopper 26 is provided with an arc-shaped groove on both sides, which can contact part of the structure at the bottom of the positioning column 25. The arc-shaped structure makes the valve 31 push the positioning column 25, and when the positioning column 25 approaches and compresses the stopper 26, the operation is more smooth, and a certain guiding effect is achieved.

[0042] Moreover, the opening degree scale 23 can be set as commonly used multiple scales, and of course more detailed scales can be set according to needs, and the stopper 26 structure is arranged at the scale area.

[0043] In one embodiment, as shown in Figure 3 The clamping ring 12 includes a first ring body 121 and a second ring body 122, and a flexible plate 123 is arranged between the first ring body 121 and the second ring body 122. The top of the flexible plate 123 is connected with the bottom of the connecting plate 11. The first ring body 121 and the second ring body 122 can adopt a flexible plastic clamping ring 12 to improve the toughness of the clamping ring 12 and adapt to pipes 30 within a certain diameter range.

[0044] The structure of the telescopic plate 123 can expand the distance between the first ring body 121 and the second ring body 122 through the telescopic plate 123 when it is needed to be installed to the pipeline 30 with a larger diameter, thereby improving the adaptability and being more flexible to use. For the structure of the telescopic plate 123, a slide channel can be arranged inside, and a sliding block is arranged at both ends of the telescopic plate 123, and the first ring body 121 and the second ring body 122 are arranged at the outer edge of the sliding block, so that the second ring body 122 and the first ring body 121 move towards or away from each other along the slide channel. In order to guarantee the positioning effect after adjustment, a pin or a rotating clamping ring 12 can be arranged at the outer edge of the slide channel to lock the position of the first ring body 121 and the second ring body 122 after adjustment.

[0045] Further, as shown in Figure 3 the first ring body 121 and the second ring body 122 are both provided with a locking port 124 at the end away from the telescopic plate 123, and a locking piece 125 is detachably arranged at the locking port 124. For the locking port 124, a threaded hole structure can be adopted, and the locking piece 125 can adopt a bolt structure to lock through the threaded structure during positioning, which is convenient to disassemble and assemble and has good locking effect.

[0046] That is, specifically, as shown in Figure 4 before detection, the acoustic emission probe 33 is inserted into the first mounting hole 13, and the opening of the clamping ring 12 is adjusted as needed, and the entire positioning mechanism is installed at the pipeline 30. Of course, during the installation process, the valve 31 also needs to pass through the second mounting hole 21 and the positioning disc 22. After installation, the acoustic emission probe 33 is attached to the outer wall of the pipeline 30, and the acoustic emission probe 33 is locked through the locking piece 15 to position the acoustic emission probe 33 and press the acoustic emission probe 33 close to the pipe wall. Thereafter, the acoustic emission detection data under different opening conditions can be obtained only through the cooperation between the valve 31 and the positioning column 25, which is convenient to operate and has good positioning effect.

[0047] Other configurations and operations of the acoustic emission detection auxiliary positioning mechanism of the hydrogen pipeline valve according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail here.

[0048] In the description of the present application, the description of the terms "embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An acoustic emission detection assisted positioning mechanism for a hydrogen pipeline valve, characterized by, The auxiliary positioning mechanism comprises an acoustic emission probe positioning part and a valve opening degree positioning part, the acoustic emission probe positioning part comprises a connecting plate and a clamping ring arranged at the bottom of the connecting plate, a plurality of first mounting holes and sliding positioning blocks are arranged on the surface of the connecting plate, the sliding positioning blocks are arranged correspondingly to the first mounting holes, and the sliding positioning blocks are detachably connected with locking pieces; the valve opening degree positioning part is arranged at the middle part of the connecting plate and comprises second mounting holes and a positioning disc, the positioning disc is arranged on the surface of the connecting plate, and an opening degree scale is arranged on the surface of the positioning disc.

2. A mechanism for acoustic emission assisted positioning of a hydrogen line valve according to claim 1, wherein, The valve opening degree positioning part further comprises a rotating disc, a positioning column is vertically arranged on the surface edge of the rotating disc, the rotating disc is concentric with the positioning disc and is arranged at the top of the positioning disc, a plurality of stop pieces and sliding grooves in sliding cooperation with the stop pieces are uniformly arranged on the bottom surface of the positioning disc.

3. A mechanism for acoustic emission detection assisted positioning of a hydrogen piping valve as claimed in claim 2, wherein, An elastic piece is arranged on the inner bottom wall of the sliding groove, and the two ends of the elastic piece are connected with the stop piece and the inner bottom wall of the sliding groove respectively.

4. A mechanism for acoustic emission detection assisted positioning of a hydrogen piping valve as claimed in claim 3, wherein, The stop piece corresponds to the opening degree scale of the valve opening degree, the positioning column protrudes from the bottom of the positioning disc, and the stop piece can block the positioning column.

5. A mechanism for acoustic emission detection assisted positioning of a hydrogen piping valve as claimed in claim 4, wherein, Arc-shaped grooves are arranged on the two sides of the head end of the stop piece, and the arc-shaped grooves can contact part of the structure at the bottom of the positioning column.

6. A mechanism for acoustic emission detection assisted positioning of a hydrogen piping valve as defined in claim 1, wherein, The clamping ring comprises a first ring body and a second ring body, and an expansion plate is arranged between the first ring body and the second ring body, and the top of the expansion plate is connected with the bottom of the connecting plate.

7. A mechanism for acoustic emission detection assisted positioning of a hydrogen piping valve as claimed in claim 6, wherein, Locking ports are arranged on the ends of the first ring body and the second ring body away from the expansion plate, and locking pieces are detachably arranged at the locking ports.

8. A mechanism for acoustic emission assisted positioning of a hydrogen line valve according to claim 7, wherein, The sliding positioning blocks comprise first sliding blocks and second sliding blocks, threads are arranged on the surfaces of the first sliding blocks and the second sliding blocks, and the first sliding blocks and the second sliding blocks can be combined to form the sliding positioning blocks.

9. A mechanism for acoustic emission assisted positioning of a hydrogen line valve according to claim 8, wherein, The locking piece is a nut.

Images