Shear type nonmetal rupture disk

Abstract

The utility model discloses a shear type nonmetal rupture disk which comprises a flange plate, a plurality of sets of connecting pieces are arranged on the inner side of the flange plate, rupture disk bodies are arranged at one ends of the connecting pieces, connecting disks are arranged among the rupture disk bodies, and a plurality of sets of locking rods are arranged at the non-circle-center positions of the connecting disks. A thinning groove is formed in the middle of one end of the connecting disc, pressure relief grooves are formed among the multiple sets of rupture disks, and a connecting piece is arranged at one end of the connecting piece. Under the action of the rupture disc, the glass fiber, the connecting disc, the locking rod, the thinning groove and the pressure relief groove, in the using process, if the pressure of the device is too large, the connecting disc cracks along the position of the thinning groove for pressure relief, so that the safety of the device is guaranteed, and after the rupture disc is used, the connecting disc can be replaced, so that the service life of the device is prolonged. And therefore, the rupture disk can be used, the rupture disk does not need to be integrally replaced, and the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rupture discs, in particular to a shear-type non-metallic rupture disc. Background Technique

[0002] A rupture disc, also known as an explosion-proof disc or explosion-proof membrane, uses the rupture of the membrane to relieve pressure. After the pressure is relieved, the container is forced to stop running. Generally, rupture discs are made of metal. However, in some devices, the liquid or gas will corrode these metals to a certain extent, thus affecting the rupture disc.

[0003] The existing shear-type non-metallic rupture disc for water treatment with the authorized publication number of "CN206860982U" includes a grooved rupture disc. The grooved rupture disc is a plexiglass rupture disc. A circular ring groove is machined at the center position of the upper surface of the grooved rupture disc, and the diameter of the circular ring groove is the same as the discharge diameter. When the grooved rupture disc is under pressure and acts, the grooved rupture disc will deform slightly along the discharge diameter until it is sheared as a whole along the groove part. In the shear-type non-metallic rupture disc for water treatment of the utility model, the grooved rupture disc is used as the main pressure control element. When the water undergoes physical overpressure and the volume of the water increases, the grooved rupture disc, as the pressure control element, acts instantly. When the rupture disc reaches the rupture pressure of the rupture disc, the rupture disc ruptures, realizing the rapid release of water, achieving the explosion effect, and achieving the purpose of safe pressure relief.

[0004] However, during the use of the device, although it can relieve the pressure of the device, it needs to be replaced as a whole after being used once. This replacement method is not only troublesome but also increases the replacement cost. Content of the Utility Model

[0005] The purpose of the utility model is to provide a shear-type non-metallic rupture disc to solve the existing problems mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a shear-type non-metallic rupture disc, including a flange. A plurality of connecting pieces are arranged inside the flange. One end of the connecting piece is provided with a rupture disc. A connecting disc is arranged between the plurality of rupture discs. A plurality of locking rods are arranged at a non-central position of the connecting disc. A thinning groove is arranged in the middle of one end of the connecting disc. A pressure relief groove is arranged between the plurality of rupture discs. One end of the connecting piece is provided with a connecting member. The connecting piece is connected to the rupture disc through the connecting member. Glass fibers are arranged inside the rupture disc.

[0007] Preferably, a plurality of connecting holes are evenly arranged on the outer side of the flange. A connecting groove is arranged inside the flange. The connecting piece is located inside the connecting groove, which is convenient for connecting the rupture disc.

[0008] Preferably, one end of the rupture disc is provided with a connection hole, and one end of the locking rod extends into the connection hole to be connected with the rupture disc, so that the locking rod can be connected to the rupture disc, facilitating the subsequent replacement of the connection disc.

[0009] Preferably, the thinning groove is made of a cross structure, and the position of the thinning groove corresponds to the position of the pressure relief groove. When the pressure is too high, the connection disc ruptures along the thinning groove.

[0010] Preferably, both the rupture disc and the connection disc are arched, and the connection disc and the rupture disc are mutually adapted to facilitate pressure relief.

[0011] Preferably, both the connection disc and the rupture disc are made of polytetrafluoroethylene material, which has high strength and good corrosion resistance, enabling the rupture disc to be stored for a long time.

[0012] Compared with the prior art, the beneficial effects of the present utility model are: this shear-type non-metallic rupture disc;

[0013] Under the action of the rupture disc, glass fiber, connection disc, locking rod, thinning groove, and pressure relief groove, during use, if the device pressure is too high, the connection disc will rupture along the thinning groove for pressure relief, thereby ensuring the safety of the device. And after the rupture disc is used, the connection disc can be replaced, enabling the rupture disc to be used, so that the rupture disc does not need to be replaced as a whole, reducing the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of the present utility model;

[0015] Figure 2 is a front view of the present utility model;

[0016] Figure 3 is a bottom view of the present utility model;

[0017] Figure 4 is a front view cross-sectional view of the rupture disc of the present utility model.

[0018] In the figure: 1, flange; 2, connection disc; 3, connecting piece; 4, rupture disc; 5, pressure relief groove; 6, thinning groove; 7, connecting piece; 8, locking rod; 9, glass fiber. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a shear-type non-metallic bursting disc, including a flange 1. Multiple connecting pieces 7 are provided inside the flange 1. One end of the connecting piece 7 is provided with a bursting disc 4. Multiple connecting holes are evenly provided outside the flange 1. A connecting groove is provided inside the flange 1. The connecting piece 7 is located inside the connecting groove, which is convenient for connecting the bursting disc 4. A connecting disc 2 is provided between multiple bursting discs 4. Both the bursting disc 4 and the connecting disc 2 are arched, and the connecting disc 2 and the bursting disc 4 are mutually adapted, which is convenient for pressure relief. Multiple locking rods 8 are provided at non-central positions of the connecting disc 2. One end of the bursting disc 4 is provided with a connecting hole. One end of the locking rod 8 extends into the connecting hole to be connected with the bursting disc 4, so that the locking rod 8 can be connected to the bursting disc 4, and it is convenient to replace the connecting disc 2 subsequently;

[0021] Both the connecting disc 2 and the bursting disc 4 are made of polytetrafluoroethylene material, which has high strength and good corrosion resistance, enabling the bursting disc to be stored for a long time. A thinning groove 6 is provided in the middle of one end of the connecting disc 2. A pressure relief groove 5 is provided between multiple bursting discs 4. The thinning groove 6 is made of a cross structure, and the position of the thinning groove 6 corresponds to the position of the pressure relief groove 5. When the pressure is too high, the connecting disc 2 ruptures along the thinning groove 6, causing the thinning groove 6 and the bursting disc 4 to open, thereby relieving the pressure. After the pressure relief, since the bursting disc 4 is made of polytetrafluoroethylene and the inside of the bursting disc 4 is filled with glass fiber 9, the strength of the bursting disc 4 is increased, so that the bursting disc 4 will not be damaged and can return to its original position. At this time, the connecting disc 2 can be replaced to reuse the bursting disc.

[0022] Working principle: During use, place the flange 1 at a designated position and screw the bolts into the connecting holes of the flange 1 to fix the flange 1. When the pressure inside the device is too high, the connecting disc 2 is affected by the pressure, causing the connecting disc 2 to rupture along the thinning groove 6, opening the thinning groove 6 and the bursting disc 4, thereby relieving the pressure. And after the pressure relief, since the bursting disc 4 is made of polytetrafluoroethylene and the inside of the bursting disc 4 is filled with glass fiber 9, the strength of the bursting disc 4 is increased, so that the bursting disc 4 will not be damaged and can return to its original position. At this time, replace the connecting disc 2 to reuse the bursting disc.

[0023] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A shear-type non-metallic bursting disc, comprising a flange (1), characterized in that: A plurality of groups of connecting plates (7) are provided on the inner side of the flange (1), a bursting plate (4) is provided at one end of the connecting plate (7), a connecting plate (2) is provided between the plurality of groups of bursting plates (4), a plurality of groups of locking rods (8) are provided at non-center positions of the connecting plate (2), a thinning groove (6) is provided in the middle of one end of the connecting plate (2), a pressure relief groove (5) is provided between the plurality of groups of bursting plates (4), a connecting piece (3) is provided at one end of the connecting plate (7), the connecting plate (7) is connected to the bursting plate (4) via the connecting piece (3), and a glass fiber (9) is provided inside the bursting plate (4).

2. A shear type non-metallic bursting disc according to claim 1, characterized in that: The outer side of the flange (1) is evenly provided with a plurality of connection holes, the inner side of the flange (1) is provided with a connection groove, and the connection piece (7) is located inside the connection groove.

3. A shear type non-metallic bursting disc according to claim 1, characterized in that: One end of the bursting piece (4) is provided with a connecting hole, and one end of the locking rod (8) extends into the inside of the connecting hole and is connected to the bursting piece (4).

4. A shear type non-metallic bursting disc according to claim 1, characterized in that: The thinning groove (6) is made of a cross structure, and the position of the thinning groove (6) corresponds to the position of the pressure relief groove (5).

5. A shear type non-metallic bursting disc according to claim 1, characterized in that: The bursting disc (4) and the connecting disc (2) are both arched, and the connecting disc (2) and the bursting disc (4) are adapted to each other.

6. A shear type non-metallic bursting disc according to claim 1, characterized in that: The connecting disc (2) and the bursting disc (4) are both made of polytetrafluoroethylene material.

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