Novel welding neck flange

Abstract

The utility model discloses a novel welding neck flange, relates to the technical field of flanges, and aims to solve the problem that the height of the neck of the conventional welding neck flange is mostly fixed and is difficult to meet the requirements of different neck heights, and the key points of the technical scheme are as follows: the novel welding neck flange comprises a flange connecting ring, and an annular groove is formed in the edge of the inner side of the flange connecting ring; a mounting ring matched with the annular groove is arranged in the annular groove in a matched mode, and a flange neck is fixed to one side of the mounting ring, penetrates through the flange connecting ring and extends out of the flange connecting ring. And the flange connecting ring and the mounting ring are fixed through a fastener. According to the design of the welding neck flange, only the flange neck can be replaced, so that when flanges with different neck heights are needed, only the flange neck with the height needs to be replaced, materials are saved, when the flange neck is damaged and needs to be replaced, only a new flange neck instead of the whole flange needs to be replaced, and waste of the materials is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of flanges, and specifically relates to a new type of high neck flange. Background Art

[0002] A high neck flange is a special type of flange, characterized in that the neck of the flange (the part connecting the pipeline) is higher than that of a traditional flange, usually to meet specific engineering requirements or operating requirements. High neck flanges are usually used in pipeline systems that require higher flow rates or higher pressures to ensure the safe and stable operation of the system. In addition, high neck flanges can also reduce the risk of leakage and are easier to maintain and repair.

[0003] The patent application with the publication number CN218236518U discloses a high neck flange, including a high neck flange body. The vertical section of the arched circular flange body gradually thins from the middle and inner circular line section around the high neck part of the flange to its outer circumferential end face. The thickness of the outer circumferential end face of the arched circular flange body is 1 / 2 - 3 / 5 of the thickness of its middle and inner circular line section around the high neck part of the flange. The central angle of the vertical section line at both ends of the upper top surface of the arched circular flange body passing through the connecting line of the center angles is 10 - 15°; it also includes at least 4 cylindrical bosses, arc-shaped reinforcing ribs, strip-shaped inclined block reinforcing ribs, weight reduction grooves, and sealing water lines. The structural design of the utility model is optimized, the weight reduction of the high neck flange of the utility model is realized, the material usage is reduced by 15 - 20% compared with the high neck flanges of the same specification, and the sealing effect of the high neck flange of the utility model is improved.

[0004] In the technology disclosed in the above patent application, the sealing effect and cost of the high neck flange are optimized. However, the neck height of the high neck flange is fixed. When flanges with different neck heights are needed, a high neck flange that meets the requirements needs to be replaced again. As a result, the original flange cannot be utilized or can only be transferred to other places where it is needed, causing waste of materials.

[0005] In summary, the utility model provides a new type of high neck flange to solve the above problems. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a new type of high neck flange. The advantage is that with the design of this high neck flange, only the flange neck can be replaced. Therefore, when flanges with different neck heights are needed, only the flange neck of this height needs to be replaced, thus saving materials. And when the flange neck is damaged and needs to be replaced, only a new flange neck needs to be replaced instead of the entire flange, thereby reducing waste of materials.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A new type of high neck flange, including a flange connection ring, an annular groove is provided on the inner edge of the flange connection ring, a mounting ring adapted to it is fitted in the annular groove, one side of the mounting ring is fixed with a flange neck, and the flange neck penetrates through the flange connection ring and extends outside it;

[0009] The flange connection ring and the mounting ring are fixed by fasteners.

[0010] By adopting the above technical solution, the assembly of this high neck flange is made simpler. It can be fixed by fasteners, with simple operation and fewer components to be combined, which is convenient for replacing the flange neck.

[0011] The present utility model is further provided as follows: The fastener includes a rod body, threads are provided on the circumferential side of one end of the rod body, and a nut is fixed at the other end of the rod body. The shape of the nut includes but is not limited to any one of a rectangle and a polygon.

[0012] By adopting the above technical solution, the selection of the fastener is similar to the common fasteners on the market, so there is no need to customize specific production machines, reducing the production cost.

[0013] The present utility model is further provided as follows: A plurality of through holes one are arranged in a circumferential array in the annular groove of the flange connection ring, a plurality of through holes two are arranged in a circumferential array on the mounting ring, and the inner diameters and the numbers of the through holes one and the through holes two are the same. An opening adapted to the nut is provided at one end of the through hole two away from the flange connection ring. The fastener passes through the through holes one and the through holes two to fix the mounting ring and the flange connection ring, and the threaded end of the rod body extends outside the through hole one of the flange connection ring.

[0014] A fastening cap is threadedly connected to the threaded end of the rod body, and threads adapted to the threaded end of the rod body are provided on the inner side of the fastening cap.

[0015] By adopting the above technical solution, through the cooperation of the fastener and the nut, the flange connection ring and the mounting ring can be easily assembled, and thus the quick replacement operation of the flange neck can be realized.

[0016] The present utility model is further provided as follows: A sealing ring is fitted in the annular groove, a plurality of round holes are arranged in a circumferential array in the sealing ring, and reinforcing ribs are fixed on the part of the sealing ring where the round holes are provided. The sealing ring is located between the mounting ring and the flange connection ring.

[0017] A plurality of washers are fitted on the side of the flange connection ring away from the mounting ring, and the rod body passes through the inner side of the washers and is connected to the fastening cap.

[0018] By adopting the above technical solution, the setting of the sealing ring and the washers greatly improves the sealing performance between the flange connection ring and the mounting ring, making this high neck flange more stable and durable.

[0019] In summary, the beneficial technical effects of the present utility model are as follows:

[0020] 1. The design of this high-neck flange allows only the flange neck to be replaced. Thus, when flanges with different neck heights are needed, only the flange neck of the required height needs to be replaced, saving materials. Moreover, when the flange neck is damaged and needs to be replaced, only a new flange neck needs to be replaced instead of the entire flange, reducing material waste.

[0021] 2. The design of this high-neck flange is simple, involving fewer replacement parts, and the installation operation is simple and convenient. Most importantly, flange necks of different heights can be replaced according to different requirements, indirectly reducing material waste.

[0022] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0023] The drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 is a schematic diagram of the rear-side structure of an embodiment of the present utility model;

[0026] Figure 3 is a schematic diagram of the internal structure of the annular groove of an embodiment of the present utility model;

[0027] Figure 4 is an exploded view of an embodiment of the present utility model;

[0028] Figure 5 is a side-view exploded diagram of an embodiment of the present utility model;

[0029] In the drawings, the list of components represented by each reference numeral is as follows:

[0030] 1. Flange connection ring; 102. Annular groove; 103. First through hole; 2. Flange neck; 3. Installation ring; 301. Second through hole; 302. Opening; 4. Rod body; 5. Nut; 6. Sealing ring; 601. Reinforcing rib; 602. Round hole; 7. Washer; 8. Fastening cap. Specific Embodiment

[0031] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0032] Refer to Figures 1-5, a new type of high-neck flange disclosed by the present utility model, comprising: a flange connection ring 1, an annular groove 102 is provided at the inner edge of the flange connection ring 1, and a mounting ring 3 adapted thereto is fitted in the annular groove 102. One side of the mounting ring 3 is fixed with a flange neck 2, and the flange neck 2 passes through the flange connection ring 1 and extends outside thereof;

[0033] The flange connection ring 1 and the mounting ring 3 are fixed by fasteners, and the mounting ring 3 and the flange neck 2 are integrally formed, so that the mounting ring 3 and the flange neck 2 have higher strength.

[0034] Refer to Figure 4 , the fasteners in this embodiment include a rod body 4, a thread is provided on the circumferential side of one end of the rod body 4, and a nut 5 is fixed to the other end of the rod body 4. The shape of the nut 5 includes but is not limited to any one of a rectangle and a polygon. The selection of the rod body 4 and the nut 5 of the fastener is similar to that of common fasteners on the market, so that there is no need to customize specific production machines, reducing production costs.

[0035] Refer to Figures 3-5 , in the annular groove 102 of the flange connection ring 1 in this embodiment, a plurality of through holes 103 are arranged in a circumferential array, and a plurality of through holes 301 are arranged in a circumferential array on the mounting ring 3. The inner diameters and the numbers of the through holes 103 and the through holes 301 are the same. An opening 302 adapted to the nut 5 is provided at one end of the through hole 302 away from the flange connection ring 1. The fastener passes through the through hole 103 and the through hole 301 to fix the mounting ring 3 and the flange connection ring 1, and the threaded end of the rod body 4 extends outside the through hole 103 of the flange connection ring 1. The threaded end of the rod body 4 is threadedly connected with a fastening cap 8, and a thread adapted to the threaded end of the rod body 4 is provided on the inner side of the fastening cap 8.

[0036] It should be noted that the shapes of the annular groove 102 and the mounting ring 3 include but are not limited to polygons and circles.

[0037] Refer to Figures 3-4 , a sealing ring 6 is fitted in the annular groove 102 in this embodiment. A plurality of round holes 602 are arranged in a circumferential array in the sealing ring 6, and a reinforcing rib 601 is fixed to the part of the sealing ring 6 where the round holes 602 are provided. The reinforcing rib 601 can increase the toughness at the round holes 602 of the sealing ring 6 and reduce the possibility of fracture at the round holes 602. The sealing ring 6 is located between the mounting ring 3 and the flange connection ring 1.

[0038] Refer to Figures 4-5 , a plurality of washers 7 are fitted on the side of the flange connection ring 1 away from the mounting ring 3 in this embodiment. The material of the washers 7 is the same as that of the sealing ring 6, and both can be made of materials with a sealing effect such as rubber. The rod body 4 passes through the inner side of the washer 7 and is connected to the fastening cap 8.

[0039] An application of one aspect of this embodiment is as follows: When it is necessary to install the flange neck 2, first install the sealing ring 6 in the annular groove 102 and align the round hole 602 with the first through hole 103. Then insert the flange neck 2 into the inner side of the flange connection ring 1 so that the installation ring 3 fits in the annular groove 102. At this time, the first through hole 103, the round hole 602, and the second through hole 301 are in a coaxial state. Then insert the rod body 4 of the fastener successively into the second through hole 301, the round hole 602, and the first through hole 103, and make the nut 5 fit in the opening 302. Finally, sleeved the washer 7 on one end of the rod body 4 extending out of the first through hole 103, and threadedly connect and fix the fastening cap 8 to the threaded end of the rod body 4;

[0040] When it is necessary to replace the flange neck 2, refer to the above operation.

[0041] The above embodiments can be combined with each other.

[0042] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A new type of high-neck flange, comprising: Flange connection ring (1), characterized in that an annular groove (102) is provided on the inner edge of the flange connection ring (1), and a mating mounting ring (3) is fitted in the annular groove (102). One side of the mounting ring (3) is fixed with a flange neck (2), and the flange neck (2) penetrates through the flange connection ring (1) and extends out of its outer side; The flange connection ring (1) and the mounting ring (3) are fixed by fasteners; The fastener includes a rod body (4). Threads are provided on the circumferential side of one end of the rod body (4), and a nut (5) is fixed to the other end of the rod body (4); The shape of the nut (5) includes, but is not limited to, any one of a rectangle and a polygon; A plurality of through holes one (103) are arranged in a circumferential array in the annular groove (102) of the flange connection ring (1). A plurality of through holes two (301) are arranged in a circumferential array on the mounting ring (3). The inner diameters and the numbers of the through holes one (103) and the through holes two (301) are the same. An opening (302) adapted to the nut (5) is provided at one end of the through hole two (301) away from the flange connection ring (1). The fastener passes through the through holes one (103) and the through holes two (301) to fix the mounting ring (3) and the flange connection ring (1), and the threaded end of the rod body (4) extends out of the outer side of the through hole one (103) of the flange connection ring (1); A fastening cap (8) is threadedly connected to the threaded end of the rod body (4). Threads adapted to the threaded end of the rod body (4) are provided on the inner side of the fastening cap (8); A sealing ring (6) is fitted in the annular groove (102). A plurality of round holes (602) are arranged in a circumferential array in the sealing ring (6). A reinforcing rib (601) is fixed to the part of the sealing ring (6) where the round holes (602) are provided. The sealing ring (6) is located between the mounting ring (3) and the flange connection ring (1).

2. A novel high-neck flange according to claim 1, characterized in that, A plurality of washers (7) are fitted on the side of the flange connection ring (1) away from the mounting ring (3). The rod body (4) passes through the inner sides of the washers (7) and is connected to the fastening cap (8).

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