Pressure gas pipeline forging flange

Abstract

This disclosure relates to the field of forged flanges for pressurized gas pipelines. One embodiment of this disclosure provides a forged flange for pressurized gas pipelines, comprising: a flanged pipe and a flange plate. The flange plate is disposed on one side of the flanged pipe. A sealing assembly is disposed between the flanged pipe and the flange plate. A reinforcing assembly is disposed outside the flanged pipe and the flange plate. The sealing assembly includes a pair of raised layers disposed on the side surface of the flanged pipe. A pair of grooves are formed on both sides of the flange plate. The flange plate fits against the side surface of the flanged pipe, and the raised layers fit into the grooves. A plurality of studs are provided around both sides of the flange plate. The studs are inserted into insertion holes, and a nut is screwed to one end of each stud, which fits against the side surface of the flanged pipe. This technical solution solves the significant defects of existing flange forgings used for pipeline connections, which have low structural strength and are unable to withstand external forces under complex working conditions.

Description

Technical Field

[0001] The embodiments of this disclosure relate to the field of pressure gas pipeline forging flanges, and more specifically, to a pressure gas pipeline forging flange. Background Technology

[0002] In modern industrial systems, flanges play an indispensable role as key components connecting shafts, pipe ends, and equipment in the mechanical field. They are widely used in pipeline systems of many industries such as chemical, petroleum, and power, bearing the heavy responsibility of ensuring stable transmission of media.

[0003] A flange, also known as a flange plate or flange, is a basic definition encompassing a protruding structure on an object and the object having such a structure. In the mechanical field, flanges typically refer to parts or structures used for connection, such as common pipe flanges and gearbox flanges. Thanks to their unique structural design, flange connections can achieve reliable sealing connections under high pressure environments, making them an ideal choice for pipe and fitting connections.

[0004] However, existing flange forgings used for pipeline connections have significant drawbacks. Firstly, their structural strength is low, making them unable to withstand external forces under complex operating conditions. In practical applications, pipelines are often subjected to various external forces, such as internal medium pressure fluctuations, external environmental vibrations, and accidental mechanical impacts. When the pipeline connection is subjected to a significant impact, existing flange forgings are prone to deformation. This deformation not only compromises the tightness of the flange connection, leading to decreased sealing performance, but may also cause media leakage. In pipeline systems transporting flammable, explosive, toxic, or hazardous media, leakage poses serious safety hazards, threatening personnel lives, causing environmental pollution, and even triggering catastrophic accidents.

[0005] On the other hand, the relatively low structural strength also limits the service life and stability of the pipeline system. Frequent external impacts cause frequent damage to the flanges, increasing maintenance costs and downtime, affecting production efficiency, and restricting the economic benefits of enterprises. With the increasing demands for safety and stability in industrial production pipeline systems, the development of a high-strength, impact-resistant carbon steel flange forging for pipelines is urgently needed. This is of significant practical importance for ensuring the safe and efficient operation of industrial production, reducing maintenance costs, and enhancing enterprise competitiveness. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a pressure gas pipeline forged flange, which solves the technical problem that existing flange forgings used for pipeline connections have significant defects, low structural strength, and difficulty in withstanding external forces under complex working conditions.

[0007] According to one aspect, at least one embodiment of this disclosure provides a pressure gas pipeline forging flange, comprising: Flange pipe and flange, wherein the flange is disposed on one side of the flange pipe; A sealing connection assembly is disposed between the flange pipe and the flange plate; A reinforcement assembly is disposed outside the flange pipe and the flange plate; The sealing assembly includes a pair of raised layers disposed on the side surface of the flange pipe. A pair of grooves are provided on both sides of the flange. The flange is fitted to one side of the flange pipe, and the raised layers are fitted inside the grooves.

[0008] As a further technical solution, a number of insertion holes are opened around the side surface of the flange pipe, and a number of studs are provided around the side surfaces of both sides of the flange. The studs are inserted into the insertion holes, and a nut is screwed to one end of the stud. The nut is attached to the side surface of the flange pipe.

[0009] As a further technical solution, the reinforcement component includes several outer grooves, which are formed around the outer surface of the flange. Several positioning grooves are formed around the outer surface of the flange pipe, and a kit is fitted inside the outer grooves and the positioning grooves.

[0010] As a further technical solution, a threaded groove is formed on the inner surface of the outer groove, a first bolt is inserted into the kit, the lower end of the first bolt is screwed into the threaded groove, and reinforcing rods are provided on both sides of the kit.

[0011] As a further technical solution, a rotating groove is provided inside the reinforcing rod, and a second bolt is rotatably connected inside the rotating groove. Several internally threaded pipes are provided on the surface of the flange pipe, and the lower end of the second bolt is screwed into the internally threaded pipe.

[0012] As a further technical solution, the inner surface of the positioning groove is an inclined structural surface, and one end of the reinforcing rod is in contact with the inner surface of the positioning groove.

[0013] As a further technical solution, both the protrusion and the groove cross-section have a toothed structure.

[0014] As a further technical solution, the stud is located at the interval between the pair of protrusions.

[0015] The beneficial effects of the embodiments disclosed herein are as follows: 1. The beneficial effects of the sealing assembly in this disclosure are that the raised layer and the sleeve groove fit tightly together to form an initial sealing barrier, effectively preventing pressurized gas leakage. The connection structure of the stud and nut, after tightening the nut, allows the flange to be firmly fixed to the flange pipe, enhancing the compression of the sealing area. The toothed cross-section of the raised layer and the sleeve groove greatly increases the tightness of their fit, further improving the sealing performance. Placing the stud at the interval between the raised layers ensures uniform force on both sides of the raised layer, preventing misalignment. Through the synergistic effect of these components, the sealing assembly achieves a stable and efficient sealing connection, effectively preventing pressurized gas leakage.

[0016] 2. The beneficial effects of the reinforcement component in this disclosure are that the outer groove and positioning groove provide an installation position for the kit, which connects the flange to the flanged pipe. The first bolt engages with the threaded groove in the outer groove, firmly fixing the kit to the flange. The reinforcement rod and its internal second bolt connect to the internal threaded pipe on the flanged pipe, constructing a stable reinforcement structure outside the flange and flanged pipe. The inclined structural surface of the inner surface of the positioning groove generates a squeezing effect during the installation of the reinforcement rod, further strengthening the fixation. This component effectively disperses the external forces on the pipeline, significantly enhances the strength of the connection, prevents the connection from loosening or bending deformation under complex working conditions, and strongly ensures the safe and stable operation of the pressurized gas pipeline system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is a cross-sectional view of the present disclosure; Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; In the diagram: 1. Flange pipe; 2. Flange; 3. Sealing assembly; 3-1. Raised layer; 3-2. Groove; 3-3. Insert; 3-4. Stud; 3-5. Nut; 4. Reinforcing assembly; 4-1. Outer groove; 4-2. Positioning groove; 4-3. Kit; 4-4. Threaded groove; 4-5. First bolt; 4-6. Reinforcing rod; 4-7. Rotary groove; 4-8. Second bolt; 4-9. Internally threaded pipe. Detailed Implementation The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0021] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-4 As shown, a pressure gas pipeline forging flange according to an embodiment of the present disclosure is illustrated, comprising: Flange pipe 1 and flange 2, wherein flange 2 is disposed on one side of flange pipe 1; A sealing assembly 3 is disposed between the flange pipe 1 and the flange 2; Reinforcing component 4 is disposed outside the flange pipe 1 and the flange 2; The sealing assembly 3 includes a pair of raised layers 3-1, which are disposed on the side surface of the flange pipe 1. A pair of grooves 3-2 are provided on both sides of the flange 2. The flange 2 is attached to one side of the flange pipe 1. The raised layers 3-1 are attached to the inside of the grooves 3-2. A number of insertion holes 3-3 are provided around the side surface of the flange pipe 1. A number of studs 3-4 are provided around the side surface of the flange 2. The studs 3-4 are inserted into the insertion holes 3-3. A nut 3-5 is screwed to one end of the stud 3-4. The nut 3-5 is attached to the side surface of the flange pipe 1.

[0025] In some examples, during the connection of forged flanges for pressurized gas pipelines, a sealing assembly 3 is designed to achieve a sealed connection between the flange pipeline 1 and the flange 2. This assembly includes a pair of raised layers 3-1 on the side surface of the flange pipeline 1, which cooperate with the grooves 3-2 opened on both sides of the flange 2. When the flange 2 is attached to one side of the flange pipeline 1, the raised layers 3-1 can fit tightly inside the grooves 3-2, forming a preliminary sealing structure and effectively blocking the leakage path of pressurized gas. Several insertion holes 3-3 are opened around the side surface of the flange pipeline 1, which are adapted to the studs 3-4 set around the side surface of the flange 2. The studs 3-4 are inserted into the insertion holes 3-3, and the nuts 3-5 connected to one end of the studs fit tightly against the side surface of the flange pipeline 1. By tightening the nuts 3-5, the flange 2 can be firmly fixed to the flange pipeline 1, further compressing the sealing part between the raised layers 3-1 and the grooves 3-2, enhancing the sealing effect, thereby achieving a stable and sealed connection between the flange pipeline 1 and the flange 2.

[0026] Through the coordinated work of components such as the raised layer 3-1, the sleeve groove 3-2, the insertion hole 3-3, the stud 3-4, and the nut 3-5, the sealing and docking assembly 3 realizes the function of sealing and connecting the flange pipe 1 through the flange 2.

[0027] like Figures 1-4As shown in the figure, the reinforcing component 4 in this embodiment includes several outer grooves 4-1. The outer grooves 4-1 are formed around the outer surface of the flange 2. Several positioning grooves 4-2 are formed around the outer surface of the flange pipe 1. A fitting 4-3 is fitted inside the outer grooves 4-1 and the positioning grooves 4-2. A threaded groove 4-4 is formed on the inner surface of the outer grooves 4-1. A first bolt 4-5 is inserted into the fitting 4-3. The lower end of the first bolt 4-5 is screwed into the threaded groove 4-4. Reinforcing rods 4-6 are provided on both sides of the fitting 4-3. A rotating groove 4-7 is formed inside the reinforcing rod 4-6. A second bolt 4-8 is rotatably fitted into the rotating groove 4-7. Several internally threaded pipes 4-9 are provided on the surface of the flange pipe 1. The lower end of the second bolt 4-8 is screwed into the internally threaded pipe 4-9.

[0028] In some examples, to ensure the stability of the flange connection of forged pressurized gas pipelines, a reinforcing component 4 is designed to enhance connection strength and prevent loosening and bending. This component includes several outer grooves 4-1 formed around the outer surface of the flange 2, and positioning grooves 4-2 formed around the outer surface of the flange pipe 1. The fittings 4-3 fitted inside the outer grooves 4-1 and positioning grooves 4-2 serve to connect the flange 2 and the flange pipe 1. The threaded grooves 4-4 formed on the inner surface of the outer grooves 4-1 cooperate with the first bolts 4-5 inserted in the fittings 4-3. The lower end of the first bolts 4-5 is screwed into the threaded grooves 4-4, firmly fixing the fittings 4-3 to the flange 2. The rotating grooves 4-7 formed in the reinforcing rods 4-6 on both sides of the fittings 4-3 allow the rotating fittings to be fitted with second bolts 4-8, which are adapted to several internally threaded pipes 4-9 on the surface of the flange pipe 1. The lower end of the second bolts 4-8 is screwed into the internally threaded pipes 4-9, so that the reinforcing rods 4-6 can be firmly connected to the flange pipe 1. In this way, the reinforcement component 4 forms a reinforcement structure on the outside of the flange 2 and the flange pipe 1, effectively dispersing the external force on the pipe, enhancing the strength of the connection, avoiding loosening or bending deformation of the connection due to external force, and ensuring the safe and stable operation of the pressure gas pipeline system.

[0029] Through the coordinated work of components such as outer groove 4-1, positioning groove 4-2, kit 4-3, threaded groove 4-4, first bolt 4-5, reinforcing rod 4-6, rotating groove 4-7, second bolt 4-8 and internal threaded tube 4-9, the reinforcing assembly 4 achieves the functions of increasing connection strength and preventing loosening and bending.

[0030] For example, such as Figure 4 As shown, the inner surface of the positioning groove 4-2 is an inclined structural surface, and one end of the reinforcing rod 4-6 is in contact with the inner surface of the positioning groove 4-2.

[0031] In some examples, by tilting the structural surface, a squeezing effect can be achieved when the reinforcing rod 4-6 is inserted through the kit 4-3, which puts pressure on the flange pipe 1 and strengthens the fixing effect.

[0032] For example, such as Figure 3 As shown, both the protrusion 3-1 and the groove 3-2 have a toothed cross-section.

[0033] In some examples, the toothed structure can increase the tightness of the fit between the protrusion 3-1 and the groove 3-2.

[0034] For example, such as Figure 1 As shown, the stud 3-4 is located at the interval between the pair of protrusions 3-1.

[0035] In some examples, by placing the studs 3-4 between the protrusions 3-1, the bonding force of the two protrusions 3-1 can be made uniform, and there will be no skewing.

[0036] In actual use: First, attach flange 2 to one side of flange pipe 1, so that the raised layer 3-1 on the side surface of flange pipe 1 is accurately embedded into the groove 3-2 on both sides of flange 2, initially achieving a sealing connection. Then, insert the studs 3-4 on both sides of flange 2 into the corresponding insertion holes 3-3 on the side surface of flange pipe 1, and screw the nuts 3-5 onto one end of the studs 3-4 and tighten them, so that the nuts 3-5 fit tightly against the side surface of flange pipe 1, further strengthening the sealing connection. Then, fit the kit 4-3 into the outer groove 4-1 of flange 2 and the positioning groove 4-2 of flange pipe 1 respectively. Insert the first bolt 4-5 into the kit 4-3 and screw it into the threaded groove 4-4 of the outer groove 4-1 of flange 2 to fix the kit 4-3. Then, rotate the second bolt 4-8 in the reinforcing rod 4-6 so that its lower end is screwed into the internal threaded pipe 4-9 on the surface of flange pipe 1, completing the installation of the reinforcing component 4.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A forged flange for a pressure gas pipeline, characterized in that, include: A flange pipe (1) and a flange (2), wherein the flange (2) is disposed on one side of the flange pipe (1); A sealing assembly (3) is disposed between the flange pipe (1) and the flange (2); A reinforcing component (4) is disposed outside the flange pipe (1) and the flange (2); The sealing assembly (3) includes a pair of raised layers (3-1), the raised layers (3-1) are disposed on the side surface of the flange pipe (1), and a pair of sleeve grooves (3-2) are provided on both sides of the flange (2). The flange (2) is attached to one side of the flange pipe (1), and the raised layers (3-1) are attached to the inside of the sleeve grooves (3-2).

2. The pressure gas pipeline forged flange according to claim 1, characterized in that, The flange pipe (1) has several insertion holes (3-3) around its side surface. The flange (2) has several studs (3-4) around its side surface. The studs (3-4) are inserted into the insertion holes (3-3). A nut (3-5) is screwed to one end of the stud (3-4). The nut (3-5) fits against the side surface of the flange pipe (1).

3. A pressure gas pipeline forged flange according to claim 1, characterized in that, The reinforcement component (4) includes several outer grooves (4-1), which are formed around the outer surface of the flange (2). Several positioning grooves (4-2) are formed around the outer surface of the flange pipe (1). A kit (4-3) is fitted inside the outer groove (4-1) and the positioning groove (4-2).

4. A pressure gas pipeline forged flange according to claim 3, characterized in that, The inner surface of the outer groove (4-1) is provided with a threaded groove (4-4), and a first bolt (4-5) is inserted into the kit (4-3). The lower end of the first bolt (4-5) is screwed into the threaded groove (4-4). Reinforcing rods (4-6) are provided on both sides of the kit (4-3).

5. A pressure gas pipeline forged flange according to claim 4, characterized in that, The reinforcing rod (4-6) has a rotating groove (4-7) inside, and a second bolt (4-8) is rotatably connected in the rotating groove (4-7). The flange pipe (1) has several internally threaded pipes (4-9) on its surface, and the lower end of the second bolt (4-8) is screwed into the internally threaded pipe (4-9).

6. A pressure gas pipeline forged flange according to claim 4, characterized in that, The inner surface of the positioning groove (4-2) is an inclined structural surface, and one end of the reinforcing rod (4-6) is in contact with the inner surface of the positioning groove (4-2).

7. A pressure gas pipeline forged flange according to claim 1, characterized in that, Both the protrusion (3-1) and the groove (3-2) have a toothed cross-section.

8. A pressure gas pipeline forged flange according to claim 2, characterized in that, The stud (3-4) is located at the interval between the pair of protrusions (3-1).

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