High-sealing-performance flange suitable for storing and conveying phosphorus tribromide

Abstract

The utility model discloses a high-sealing-performance flange suitable for storing and conveying phosphorus tribromide, and belongs to the technical field of flanges. The flange comprises a flange body, a plurality of mounting holes are formed in the flange body, an annular sliding groove is formed in the surface of the flange body, the annular sliding groove is located on the outer ring of the mounting holes, and a sealing device is arranged in the annular sliding groove. The bolt penetrates through the mounting hole to be connected with the flange, the pressing ring is squeezed when the bolt is screwed, the pressing ring slides in the annular sliding groove to squeeze the rubber ring, and the rubber ring is squeezed out and tightly attached to the surface of the bolt, so that water is prevented from entering threads. And the phenomenon that the joints of the connecting pieces such as the bolts are easily corroded by rainwater and the like to be jammed and even stuck is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of flanges, and in particular relates to a high-sealing flange suitable for storing and transporting phosphorus tribromide. Background Art

[0002] Phosphorus tribromide, an inorganic compound with the chemical formula PBr3, exhibits strong nucleophilicity and Lewis acidity, reacting with a wide range of organic and inorganic compounds. It is primarily used in organic synthesis, materials science, chemical analysis, and laboratory research.

[0003] Flanges, also known as flanges or flanges, are components that connect pipes and valves to each other, and are attached to pipe ends. Flanges are generally used in pairs, with corresponding mounting holes provided in each flange, through which bolts and other fasteners are inserted to connect the pipes. Flanges are widely used. However, when flanges are connected outdoors using bolts and other fasteners, the outdoor environment can easily cause corrosion from rainwater, leading to sticking or even freezing of the bolts, making it difficult to disassemble the connection later. Furthermore, because phosphorus tribromide is a liquid at room temperature and has a high density and volatility, it is prone to leakage during storage and transportation if the container is not tightly sealed or subjected to external impact. Once leaking, contact with moisture in the air quickly produces smoke, potentially causing a fire or explosion. Improper storage conditions, such as high temperature and high humidity, increase the hazards of phosphorus tribromide.

[0004] Therefore, a high-sealing flange suitable for the storage and transportation of phosphorus tribromide is needed to improve the above problems. Utility Model Content

[0005] In response to the problems mentioned in the background technology, the utility model proposes a high-sealing flange suitable for the storage and transportation of phosphorus tribromide, which can prevent moisture from entering the threads, reduce the connection points of bolts and other connecting parts from being easily corroded by rainwater, etc., and cause sticking or even jamming. It is easy to disassemble and has good sealing performance.

[0006] Technical solution: In order to solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0007] A high-sealing flange suitable for storing and transporting phosphorus tribromide comprises a flange body, wherein the flange body is provided with a plurality of mounting holes, an annular chute is provided on the surface of the flange body, and the annular chute is located on the outer circle of the mounting hole, and a sealing device is provided in the annular chute.

[0008] Preferably, the sealing device includes a pressure ring and a rubber ring; the pressure ring is arranged in the annular slide groove, and the rubber ring is arranged at the lower end of the pressure ring and fits with the bottom of the annular slide groove.

[0009] Preferably, the bottom of the pressure ring is arranged in a beveled shape.

[0010] Preferably, a central through hole is provided on the flange body, and a pagoda joint is connected to the central through hole.

[0011] Preferably, the interior of the mounting hole is provided with threads.

[0012] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0013] (1) In the present invention, bolts are passed through the mounting holes to connect the flanges. When the bolts are tightened, the compression ring is squeezed. The compression ring slides inside the annular groove and squeezes the rubber ring. The rubber ring is squeezed out and adheres to the surface of the bolt, thereby preventing moisture from entering the thread and reducing the risk of the connection of the bolts and other connecting parts being easily corroded by rainwater and causing jamming or even deadlock.

[0014] (2) In the present invention, the bottom of the pressure ring is set with an oblique edge, so that when the rubber ring is squeezed to a certain deformation, the bottom of the pressure ring can touch the bottom, leaving a certain space for the rubber ring, which can avoid over-tightening the bolt, causing the pressure ring to over-extrude the rubber ring, causing the rubber ring to lose its sealing function; and make the rubber ring better adhere to the surface of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present utility model;

[0017] Figure 3 This is a schematic diagram of the pagoda joint structure of the utility model;

[0018] In the figure: 1. Flange body; 2. Press ring; 3. Mounting hole; 4. Rubber ring; 5. Annular slide groove; 6. Pagoda joint. DETAILED DESCRIPTION

[0019] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solutions of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0020] like Figure 1-Figure 3As shown, the high-sealing flange suitable for the storage and transportation of phosphorus tribromide provided by the present invention mainly includes a flange body 1, a mounting hole 3, an annular chute 5, a sealing device and a central through hole; the mounting hole 3 is provided on the flange body 1, the annular chute 5 is provided on the surface of the flange body 1, and the annular chute 5 is located on the outer ring of the mounting hole 3, the sealing device is provided in the annular chute 5, and the number of the central through hole is one, and it is located at the center of the flange body 1.

[0021] like Figure 1 As shown, a plurality of mounting holes 3 are provided on the flange body 1 .

[0022] like Figure 2 As shown, the sealing device includes a pressure ring 2 and a rubber ring 4; the pressure ring 2 is arranged in the annular groove 5 and fits with the outer ring of the mounting hole 3, and the rubber ring 4 is arranged at the lower end of the pressure ring 2 and fits with the bottom of the annular groove 5.

[0023] In this embodiment, the bottom of the pressure ring 2 is set with a bevel, so that when the rubber ring 4 is squeezed and deformed to a certain extent, the bottom of the pressure ring 2 can touch the bottom, leaving a certain space for the rubber ring 4, which can avoid over-tightening of the bolts, causing the pressure ring 2 to over-extrude the rubber ring 4, causing the rubber ring 4 to lose its sealing function.

[0024] The rubber ring 4 is made of elastic sealing material, which is mainly used to fill the small gap between the flange and the bolt to prevent moisture from entering the thread, thereby reducing the corrosion of the connection between the bolt and the flange due to rainwater.

[0025] like Figure 3 As shown, in this embodiment, a pagoda joint 6 is connected to the central through hole.

[0026] In this embodiment, the mounting hole 3 is an internally threaded mounting hole with threads provided inside.

[0027] The working principle or usage process of the utility model is as follows: when in use, align the flange of the pagoda joint 6 with the flange of the pipe to ensure that the center lines of the two are consistent, and then use bolts to pass through the corresponding mounting holes 3 on the two flanges to connect the flange of the pagoda joint 6 and the flange of the pipe, and then connect nuts at both ends of the bolts. When the bolts are tightened, the pressure ring 2 will be squeezed, and the pressure ring 2 will slide inside the annular groove 5 to squeeze the rubber ring 4. The rubber ring 4 is squeezed out and adheres to the surface of the bolt, thereby preventing moisture from entering the thread, reducing the connection of the bolts and other connecting parts from being easily corroded by rainwater and even causing jamming or even stuck.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A high-sealing flange suitable for storing and transporting phosphorus tribromide, comprising a flange body (1), characterized in that: The flange body (1) is provided with a plurality of mounting holes (3), the surface of the flange body (1) is provided with an annular sliding groove (5), and the annular sliding groove (5) is located on the outer ring of the mounting hole (3), and a sealing device is provided in the annular sliding groove (5).

2. The high-sealability flange suitable for storage and transportation of phosphorus tribromide according to claim 1, characterized in that: The sealing device comprises a pressure ring (2) and a rubber ring (4); the pressure ring (2) is arranged in an annular slide groove (5), and the rubber ring (4) is arranged at the lower end of the pressure ring (2) and fits with the bottom of the annular slide groove (5).

3. The high-sealability flange suitable for storage and transportation of phosphorus tribromide according to claim 2, characterized in that: The bottom of the pressure ring (2) is arranged in a beveled manner.

4. The high-sealability flange suitable for storage and transportation of phosphorus tribromide according to claim 1, characterized in that: The flange body (1) is provided with a central through hole, and a pagoda joint (6) is connected to the central through hole.

5. The high-sealability flange suitable for storage and transportation of phosphorus tribromide according to claim 1, characterized in that: The interior of the mounting hole (3) is provided with threads.

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