Corrosion-resistant neck ring flange

Abstract

The utility model relates to the technical field of flanges and discloses a corrosion-resistant collar flange which comprises a flange plate mechanism, a flange neck mechanism is arranged at the top end of the flange plate mechanism, the flange plate mechanism comprises a plate body, a first groove is formed in the center of the bottom end of the plate body, and a through hole is formed in the center of the inner top wall of the first groove. Three reinforcing ribs are fixedly connected to the inner top wall of the first groove and located on the outer side of the through hole at equal angles. The reinforcing structure is additionally arranged on the outer side of the portion, prone to being impacted, of the flange neck, the three reinforcing protruding blocks are fixedly connected to the outer side of the neck sleeve at equal angles, one reinforcing block is fixedly connected between each reinforcing protruding block and the disc body, the impact resistance of the flange neck can be improved, and the service life of the flange neck is prolonged. And meanwhile, the bottom end of the tray body is fixedly connected with the three reinforcing ribs in an equal-angle shape, so that the impact resistance of the tray body is further improved.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically a corrosion-resistant neck flange. Background Technology

[0002] Corrosion-resistant neck flanges are pipe connection components with corrosion-resistant properties. They are usually made of stainless steel, such as 304 and 316L, and have good corrosion resistance, oxidation resistance, and mechanical properties. They can resist the erosion of various chemicals and atmospheric environments. They include weld neck flanges, which have a long neck and are connected to the pipeline by butt welding. The welding quality is high, the sealing performance is good, and they can withstand high pressure and temperature. They are commonly used in high-pressure, high-temperature, and highly corrosive pipelines in industries such as petroleum, chemical, and power.

[0003] Existing corrosion-resistant neck flanges still have the following problems in use: In some applications involving fluid impact, mechanical vibration, or potential external impact, these flanges may be damaged due to insufficient impact resistance, such as cracks or deformation at the flange neck, affecting their normal use and connection stability. Furthermore, despite the design incorporating sealing measures, seal failure may still occur under extreme conditions, such as high pressure, high temperature, strong vibration, or highly permeable media, leading to media leakage. Additionally, aging, damage, or improper installation of the gasket can also affect sealing performance. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a corrosion-resistant neck flange, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant neck flange, comprising a flange mechanism, a flange neck mechanism at the top of the flange mechanism, the flange mechanism comprising a disc body, a first groove at the center of the bottom end of the disc body, a through hole at the center of the top wall of the first groove, three reinforcing ribs fixedly connected at equal angles to the top wall of the first groove and outside the through hole, the flange neck mechanism comprising a neck sleeve fixedly connected to the center of the top end of the disc body, three reinforcing protrusions fixedly connected at equal angles to the lower part of the annular outer wall of the neck sleeve, and a reinforcing block fixedly connected to the lower part of each of the three reinforcing protrusions at one end, the bottom ends of the reinforcing protrusions and the reinforcing blocks being fixedly connected to the top end of the disc body.

[0008] As a further embodiment of this utility model: an auxiliary connection sealing mechanism is provided at the bottom end of the disc body and the top end of the neck sleeve. The auxiliary connection sealing mechanism includes a first sealing ring fixedly connected to the periphery of the bottom end of the disc body, a second sealing ring fixedly sleeved on the outer side of the top end of the neck sleeve, and multiple sets of first auxiliary sealing grooves equally opened at the outer side of the bottom end of the disc body. Each set of first auxiliary sealing grooves consists of multiple grooves and is arranged at equal angles. The auxiliary connection sealing mechanism also includes multiple second auxiliary sealing grooves equally opened at the outer side of the top end of the neck sleeve.

[0009] As a further embodiment of this utility model: the outer side of the bottom end of the disc body is provided with multiple connecting holes at equal angles, the top wall of the first groove is provided with three first mating holes at equal angles, and the top of the reinforcing protrusion is provided with a second mating hole that matches the first mating holes.

[0010] As a further embodiment of this utility model: a first mating groove is provided at the center of the top of the neck sleeve, a second mating groove is provided at the center of the bottom wall of the first mating groove, and a third mating groove with a matching through hole is provided at the center of the bottom wall of the second mating groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by adding a reinforcing structure to the outside of the flange neck, which is susceptible to impact, three reinforcing protrusions are fixedly connected at equal angles on the outside of the neck sleeve. Each reinforcing protrusion is fixedly connected to a reinforcing block between itself and the disc body, which can improve the impact resistance of the flange neck. At the same time, three reinforcing ribs are fixedly connected at equal angles at the bottom of the disc body, which further enhances the impact resistance of the disc body.

[0013] 2. In this utility model, by adopting an optimized flange sealing surface structure design, multiple second auxiliary sealing grooves are equidistantly opened at the top of the neck sleeve, and multiple first auxiliary sealing grooves are also equidistantly opened at the outer side of the bottom end of the disc body. With the matching combined sealing connection pipe fittings, the sealing effect of the overall corrosion-resistant neck flange connection can be improved. In addition, a second sealing rubber ring is fixedly sleeved on the outer side of the top of the neck sleeve, and a first sealing rubber ring is also fixedly connected to the outer periphery of the bottom end of the disc body, further improving the sealing performance of the flange connection and reducing the probability of leakage at the connection. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0016] Figure 3 This is a perspective view of the flange mechanism of this utility model;

[0017] Figure 4 This is a perspective view of the flange neck mechanism of this utility model.

[0018] In the diagram: 1. Flange mechanism; 2. Flange neck mechanism; 11. Flange body; 12. First groove; 13. Through hole; 14. First mating hole; 15. Connecting hole; 16. First auxiliary sealing groove; 17. Reinforcing rib; 18. First sealing ring; 21. Neck sleeve; 22. Reinforcing protrusion; 23. Second mating hole; 24. Reinforcing block; 25. First mating groove; 26. Second mating groove; 27. Third mating groove; 28. Second auxiliary sealing groove; 29. ​​Second sealing ring. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4In this embodiment of the present invention, a corrosion-resistant neck flange includes a flange mechanism 1, a flange neck mechanism 2 at the top of the flange mechanism 1, the flange mechanism 1 including a disc body 11, a first groove 12 at the center of the bottom end of the disc body 11, a through hole 13 at the center of the top wall of the first groove 12, and three reinforcing ribs 17 fixedly connected at equal angles to the top wall of the first groove 12 and outside the through hole 13. The flange neck mechanism 2 includes a neck sleeve 21 fixedly connected to the center of the top end of the disc body 11, and three reinforcing ribs 17 fixedly connected at equal angles to the lower part of the annular outer wall of the neck sleeve 21. The three reinforcing protrusions 22 are fixedly connected to a reinforcing block 24 at one end of each other. The bottom ends of the reinforcing protrusions 22 and the reinforcing blocks 24 are fixedly connected to the top of the disc body 11. The whole structure adds a reinforcing structure to the outside of the flange neck, which is prone to impact. The three reinforcing protrusions 22 are fixedly connected at equal angles to the outside of the neck sleeve 21. Each reinforcing protrusion 22 is fixedly connected to a reinforcing block 24 between it and the disc body 11, which can improve the impact resistance of the flange neck. At the same time, the bottom end of the disc body 11 is fixedly connected to three reinforcing ribs 17 at equal angles, which further enhances the impact resistance of the disc body 11.

[0023] An auxiliary connection sealing mechanism is provided at the bottom end of the disc body 11 and the top end of the neck sleeve 21. The auxiliary connection sealing mechanism includes a first sealing ring 18 fixedly connected to the outer periphery of the bottom end of the disc body 11, a second sealing ring 29 fixedly sleeved on the outer side of the top end of the neck sleeve 21, and multiple sets of first auxiliary sealing grooves 16 equally angled on the outer side of the bottom end of the disc body 11. Each set of first auxiliary sealing grooves 16 consists of multiple grooves and is arranged at equal angles. The auxiliary connection sealing mechanism also includes multiple second auxiliary sealing grooves 29 equally angled on the outer side of the top end of the neck sleeve 21. 8. The overall design adopts an optimized flange sealing surface structure. Multiple second auxiliary sealing grooves 28 are equidistantly opened at the top of the neck sleeve 21, and multiple first auxiliary sealing grooves 16 are also equidistantly opened at the bottom outer side of the disc body 11. With the matching combined sealing connection pipe fittings, the sealing effect of the overall corrosion-resistant neck flange connection can be improved. In addition, a second sealing ring 29 is fixedly sleeved on the top outer side of the neck sleeve 21, and a first sealing ring 18 is also fixedly connected to the bottom outer periphery of the disc body 11, which further improves the sealing performance of the flange connection and reduces the probability of leakage at the connection.

[0024] The bottom outer side of the disc body 11 is provided with multiple connecting holes 15 at equal angles. The top wall of the first groove 12 is provided with three first mating holes 14 at equal angles. The top of the reinforcing protrusion 22 is provided with a second mating hole 23 that matches the first mating hole 14. The disc body 11 can be fixedly installed by connecting the mounting components through the connecting holes 15, and the overall flange structure can be connected and installed by the mounting components arranged in the first mating hole 14 and the corresponding second mating hole 23.

[0025] The neck sleeve 21 has a first mating groove 25 at the center of the top end, a second mating groove 26 at the center of the bottom wall of the first mating groove 25, and a third mating groove 27 at the center of the bottom wall of the second mating groove 26, which matches the through hole 13. The entire neck sleeve 21 can be fitted with connecting pipes of different diameters by welding through the mating grooves of different inner diameters on its inner side.

[0026] The working principle of this utility model is as follows: the integral neck sleeve 21 can be fitted with connecting pipes of different diameters by welding through mating grooves of different inner diameters on its inner side, and the disc body 11 can be fixedly installed by fitting the mounting components through the connecting hole 15, and the integral flange structure can be connected and installed by the mounting components arranged in the first mating hole 14 and the corresponding second mating hole 23. In addition, the integral adopts an optimized flange sealing surface structure design. Multiple second auxiliary sealing grooves 28 are equally spaced on the top of the neck sleeve 21, and multiple first auxiliary sealing grooves 16 are equally spaced on the outer side of the bottom of the disc body 11. With matching combined sealing connecting pipe fittings, the sealing effect of the integral corrosion-resistant neck flange connection can be improved. In addition, a second sealing rubber ring 29 is fixedly sleeved on the outer side of the top of the neck sleeve 21, and a first sealing rubber ring 18 is also fixedly connected to the outer periphery of the bottom of the disc body 11, further improving the sealing performance of the flange connection and reducing the probability of leakage at the connection.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant neck flange, comprising a flange mechanism (1), wherein a flange neck mechanism (2) is provided at the top of the flange mechanism (1). Its features are: The flange mechanism (1) includes a disc body (11). The disc body (11) has multiple connecting holes (15) at equal angles on the outer side of its bottom end. The disc body (11) has a first groove (12) at the center of its bottom end. The first groove (12) has a through hole (13) at the center of its inner top wall. The first groove (12) has three reinforcing ribs (17) fixedly connected at equal angles on its inner top wall and outside the through hole (13). The flange neck mechanism (2) includes a neck sleeve (21) fixedly connected to the center of the top of the disc body (11). Three reinforcing protrusions (22) are fixedly connected at equal angles below the annular outer side wall of the neck sleeve (21). Each of the three reinforcing protrusions (22) is fixedly connected to a reinforcing block (24) at one end away from each other. The bottom ends of the reinforcing protrusions (22) and the reinforcing blocks (24) are fixedly connected to the top of the disc body (11). An auxiliary connection sealing mechanism is provided at the bottom of the disc body (11) and the top of the neck sleeve (21).

2. The corrosion-resistant neck flange according to claim 1, characterized in that: The auxiliary connection sealing mechanism includes a first sealing ring (18) fixedly connected to the periphery of the bottom end of the disc body (11), and the auxiliary connection sealing mechanism also includes a second sealing ring (29) fixedly sleeved on the outer side of the top end of the neck sleeve (21).

3. The corrosion-resistant neck flange according to claim 1, characterized in that: The auxiliary connection sealing mechanism also includes multiple sets of first auxiliary sealing grooves (16) opened at equal angles on the outer side of the bottom end of the disc body (11), and each set of first auxiliary sealing grooves (16) consists of multiple grooves and is arranged at equal angles.

4. The corrosion-resistant neck flange according to claim 1, characterized in that: The auxiliary connection sealing mechanism also includes multiple second auxiliary sealing grooves (28) opened at equal angles on the outer side of the top of the neck sleeve (21).

5. The corrosion-resistant neck flange according to claim 1, characterized in that: The top wall of the first groove (12) is provided with three first mating holes (14) at equal angles.

6. The corrosion-resistant neck flange according to claim 1, characterized in that: The top of the reinforcing protrusion (22) is provided with a second mating hole (23) that matches the first mating hole (14).

7. The corrosion-resistant neck flange according to claim 1, characterized in that: The neck sleeve (21) has a first mating groove (25) at the center of the top end, a second mating groove (26) at the center of the bottom wall of the first mating groove (25), and a third mating groove (27) matching the through hole (13) at the center of the bottom wall of the second mating groove (26).

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