Polygonal, in particular rectangular rupture disk
By designing a multi-angle bursting disc with folded portions and shoulders, the manufacturing process is simplified, the complex manufacturing and high consumption problems in the prior art are solved, and more efficient production and fixing methods are achieved.
Patent Information
- Application Number
- CN202410749136.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-06-12
- Filing Date
- 2024-06-12
- Publication Date
- 2024-12-13
AI Technical Summary
The manufacturing process of existing multi-angle burst disks is complex, requiring multiple operational steps and additional components such as plug-ins and pull-out strips and clips, resulting in high production costs and complexity.
A multi-angle bursting plate with folded portion is designed, the insertion and removal strip is omitted, the edge area is composed of sheet folding, and is fixed and sealed using shoulders and holes, simplifying the manufacturing process, and fixed to the container or pipeline by threaded parts.
The manufacturing process of the blasting disk is simplified, the demand for components and stations is reduced, the production complexity and consumption is reduced, and the manufacturing efficiency and stability is improved.
Smart Images
Figure CN119123127A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a polygonal, in particular rectangular, bursting disc, which is made of a plate material and has an edge region, a central region and a theoretical breaking line. The bursting disc can be fixed to an opening of a container or a pipeline with the edge region, and the opening can be blocked with the central region until a bursting pressure. When the bursting pressure is reached, the bursting disc splits along the theoretical breaking line, so that the central region is completely or partially open. Background Art
[0002] The applicant manufactures such a multi-angle bursting disc and sells it under the name "EGV". EGV is used, for example, in plants with silos, spray dryers, elevators, chain trough conveyors, screens with slight vibrations, containers with mechanical fillers or low-pressure areas, in particular in pressureless processes or processes with slight underpressure or overpressure. With a bursting disc, it is possible to prevent the pressure in the container or pipeline from rising above the bursting pressure. When the pressure rises above the bursting pressure, the EGV breaks at a defined theoretical breaking line and thus releases the pressure from the container or pipeline into the surrounding environment.
[0003] The EGV in its current embodiment is multi-piece. The EGV comprises a cut and formed sheet with two circumferential beadings and four so-called plug-in tabs, each of which is plugged into one side of the sheet. The sheet comprises a central area and a portion of the edge area of the bursting disc. The rest of the edge area is formed by plug-in strips. A theoretical breaking line is provided in the sheet that breaks when the bursting pressure is reached. The plug-in tabs are U-shaped strips in cross section, with very narrow tabs whose width is approximately equal to the thickness of the sheet and with legs of different lengths that surround the edge of the sheet.
[0004] To produce an EGV, several work steps are required. On the one hand, the sheet metal is produced in several work steps. On the other hand, the plug-in strip is produced in several work steps. Therefore, the plug-in strip is then plugged into the sheet metal. Finally, the plug-in strip is also secured to prevent it from falling out of the sheet metal during transportation or during assembly of the bursting disc and possibly being lost or damaged. For this purpose, clamps are currently used, which also have to be produced, assembled and disassembled again at the end.
[0005] The production of an EGV is very complex due to the large number of work steps. Summary of the invention
[0006] Therefore, the object of the present invention is to design a multi-angle bursting disc which can be manufactured relatively simply.
[0007] This object is achieved according to the invention in that the bursting disc has a fold in the edge region, the fold having a folded first portion of the sheet and a second portion of the sheet, the folded portion being parallel or mostly parallel to the second portion. Such a fold is also referred to by those skilled in the art as a seam.
[0008] Thus, in the bursting disc according to the invention, the plug-in strip is omitted and the edge region of the bursting disc is formed from a sheet material, the edge of which is folded over for this purpose. The forming of the sheet material into the bursting disc according to the invention is therefore more complex than the separate production of the sheet material for the EGV. However, the production of the bursting disc is generally simpler by omitting the production of the plug-in strip and the mounting of the plug-in strip on the sheet material. Thus, the bursting disc can be formed from sheet material, in particular, at a workstation and components, such as plug-in strips, do not have to be produced and supplied at other workstations or supplied from a stockpile. In the bursting disc according to the invention, a transport fixture for fixing the plug-in strip is also not required.
[0009] In the bursting disc according to the present invention, a hole may be provided in the folded portion, the hole being suitable for tightening the bursting disc to a screw on the edge of the opening.
[0010] It is possible that in the bursting disc according to the invention a first shoulder is provided in the first part or in the second part. If a shoulder is provided in the first part or in the second part, a spacing can be provided between the first part and the second part starting from the edge of the bursting disc up to the first shoulder, and then starting from the first shoulder the first part and the second part can abut against each other.
[0011] The bursting disc according to the invention can have a second shoulder in the central region at a distance from the folded portion. The second shoulder can extend in the same direction as the first shoulder. However, it is also possible that the second shoulder extends in the opposite direction to the first shoulder. Unlike the curling provided in the sheet metal of the known EGV, less forming energy is used to produce the shoulder. This has the following advantages: in contrast to the sheet metal of the EGV (in which the curling is processed), the sheet metal is less undesirably deformed when producing the shoulder. After the forming for processing the curling, it can occur that the bursting disc is no longer flat in the unassembled state, but forms a so-called relief, which means that the corners of the bursting disc or the sheet metal protrude from the plane that should be formed by the sheet metal. Although this has no effect on the function of the bursting disc, it at least makes the assembly of the known bursting disc slightly more difficult. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The embodiments of the present invention are described below with the aid of the accompanying drawings.
[0013] Figure 1A perspective view showing a bursting disc according to the present invention;
[0014] Figure 1a A top view showing the outside of the bursting disc;
[0015] Figure 2 Shown with Figure 1 a view of a cross section of a bursting disc in the same perspective view as in FIG.
[0016] Figure 3 Show Figure 2 A magnified view of a part of the
[0017] Figure 4 A top view showing a portion of the same cross section;
[0018] Figure 4a A partial top view showing a corresponding cross section of a second bursting disc according to the present invention;
[0019] Figure 4b A partial top view showing a corresponding cross section of a third bursting disc according to the present invention is shown. DETAILED DESCRIPTION
[0020] It is not necessary that the device according to the invention has all the features described below. It is also possible that the device according to the invention has only a few features of the embodiments described below.
[0021] The bursting disc 1 is manufactured from a sheet material which is cut in a special manner for this purpose. Here, the sheet material is broken at each corner. The sheet material is provided with a first shoulder 15 and a second shoulder 16 by means of an upsetting tool. The first shoulder 15 is machined into the sheet material more externally and the second shoulder 16 is machined into the sheet material more internally. In addition, pairs of holes 13 are machined into the sheet material, which holes 13 are of the same size. The two holes 13 in a pair are located at the same distance from each other on a line perpendicular to the straight line along which the sheet material is bent by 180° in order to produce a folded portion, so as to produce the edge region 11 of the sheet material. After the folding, the holes 13 in a pair overlap and are aligned. Additional holes 14 are provided in the sheet material at the corners. All of these holes 13, 14 are used to fix the bursting disc 1, which is screwed to a container or a pipeline with a screw that can be guided through these holes 13, 14.
[0022] A central region 12 of the bursting disc 1 is formed within the edge region 11 , in which a second shoulder 16 is arranged. The first shoulder is located in the edge region 11 .
[0023] The folded portion forms two parts 111, 112 of the sheet metal in the edge region 11, namely a first folded part 111 and a second part 112, the second part being parallel to the folded part 111. The first shoulder 15 is formed in the second part 112. This results in a region in which the first part 111 and the second part 112 are spaced apart from one another, and a further inner region in which the first part 111 and the second part 112 are in contact with one another. A theoretical breaking line (not shown) is provided in the region in which the first part 111 and the second part 112 are in contact with one another, along which the bursting disc 1 splits and breaks apart when the bursting pressure is reached.
[0024] In practice, it is possible that the first part 111 and the second part 112 abut against each other in the region between the fold and the shoulder 15. For this purpose, these regions can be curved relative to each other, in particular in the region in which the hole is provided, but also in the region adjacent to the seam. This curvature can already be produced during the manufacture of the bursting disc, for example during the folding. However, it is also possible that the curvature is not formed until the bursting disc is assembled, if the screw leading through the hole 13 is tightened and the first part 111 and the second part 112 are thereby pressed against each other.
[0025] In accordance with Figure 4a The second bursting disc and Figure 4b Bursting discs (which, apart from the differences shown, correspond to Figures 1 to 4 In the bursting disc of the invention, the first part 111 and the second part 112 are close to each other. Figure 4a The second bursting disc and Figure 4b In the third bursting disc of , a third shoulder 17 is formed in the first part 111 of the edge region 11 by means of an upsetting tool, and the third shoulder abuts against the first shoulder 15. If the fold has been produced before, the first shoulder 15 and the third shoulder 17 can be produced in one process.
[0026] In the third bursting disc, in addition to the first shoulder 15, the second shoulder 16 and the third shoulder 17 in the first region, a fourth shoulder 18 is provided in the second part 112 of the edge region 11, which is directed opposite to the first shoulder 15. Thus, a circumferential recess is formed in the second part 112 of the edge region 11.
[0027] In the three bursting discs 1 shown, a seal 2 can be arranged on the second part 112 of the edge region 11 adjacent to the first shoulder 15, which seal rests on the edge of the opening to be closed during assembly of the bursting disc 1 and seals the gap between the bursting disc 1 and the edge of the opening. The first shoulder 15 prevents the seal 2 from being compressed so strongly during assembly that it is damaged and can no longer fulfill its purpose for sealing. The seal 2 can be a sealing strip glued to the second part 112. Alternatively, it can also be a sprayed foamed seal 2. In the third bursting disc 1, the area where the seal 2 can be arranged is delimited on both sides by a surrounding recess.
Claims
1. A polygonal, in particular rectangular, bursting disc (1), which is manufactured from a sheet material, and which has an edge region (11) and a central region (12) and a theoretical breaking line, wherein the bursting disc (1) can be fixed to an opening of a container or a pipeline with the edge region, and the opening can be blocked with the central region up to a bursting pressure, and when the bursting pressure is reached, the bursting disc (1) breaks apart along the theoretical breaking line, so that the central region (12) is completely or partially open, It is characterized in that The bursting disc (1) has a folded portion in the edge region (11), the folded portion having a folded first portion (111) of the plate and a second portion (112) of the plate, the folded portion (111) being parallel to or mostly parallel to the second portion.
2. The bursting disc according to claim 1, characterized in that: A hole (13) is provided in the folded portion, the hole being suitable for tightening the bursting disc (1) to a threaded member on the edge of the opening.
3. The bursting disc according to claim 1 or 2, characterized in that: A first shoulder (15) is provided in the second portion (112) of the plate.
4. The bursting disc according to claim 3, characterized in that: Starting from the edge of the bursting disc (1) up to the first shoulder (15), a spacing is provided between the first part (111) and the second part (112), and then starting from the first shoulder (15), the first part and the second part abut against each other.
5. The bursting disc according to any one of claims 1 to 4, characterized in that The bursting disc (1) has a second shoulder (16) in the central region (12) at a distance from the fold.
6. The bursting disc according to claim 5, characterized in that: The second shoulder (12) extends in the same direction as the first shoulder (15).
7. The bursting disc according to claim 5, characterized in that: The second shoulder (16) extends in a direction opposite to the first shoulder (15).