Flange with seal positioning function

Abstract

The utility model relates to a flange with sealing element positioning function belongs to connecting piece technical field. Including opposite arrangement and vertical installation's flange body, the flange body is opened with the pipe joint mouth, sealing element positioning hole, the pipe joint mouth is opened in the middle part of flange body, and sealing element positioning hole is located below the edge line of pipe joint mouth, sealing element positioning hole is used for inserting positioning pin, the upper clearance of adjacent flange body between far from sealing element positioning hole side forms sealing element insertion channel, the flange body is also opened with bolt hole, the inscribed circle radius R of sealing element positioning hole is greater than or equal to the effective sealing surface outer radius R1 of flange body, and less than or equal to the inscribed circle radius R2 of bolt hole. When installing, first align the sealing element positioning hole of adjacent flange body, then insert sealing element through sealing element insertion channel and insert between flange body, until stop against positioning pin and then fasten connection through bolt. Sealing element positioning is accurate, and installation is convenient, and the sealing reliability of flange is improved.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology and relates to a flange with a sealing positioning function. Background Technology

[0002] In the industrial sector, flanges play an irreplaceable role as crucial connecting components between equipment, valves, and pipelines. Like a sturdy bridge, they tightly connect various parts, ensuring the stable operation of the entire system. When using flange connections, to ensure a good seal at the connection and prevent safety hazards such as leaks, a sealing element is usually installed between the mating flanges. This small sealing element, though seemingly insignificant, is crucial to the safety and efficiency of the entire system.

[0003] However, existing flat and raised face flanges have revealed many troublesome problems in practical applications. Especially during actual use and installation, when the flange is installed vertically, the installation of the seals becomes extremely inconvenient, and the installation efficiency is greatly reduced.

[0004] This problem becomes increasingly prominent in the installation of large-diameter pipelines. The flange seals on large-diameter pipelines are bulky and heavy, making it difficult for installers to accurately position them. Due to the lack of effective positioning aids, the seals often shift or tilt during installation, making alignment difficult. This not only increases the difficulty of installation but also wastes a significant amount of time and manpower.

[0005] More seriously, inaccurate installation and positioning of the seals directly affect the sealing effect. When the seals are not evenly distributed at the flange connection, uneven compression will occur during the subsequent tightening process. Some areas may be over-compressed, while others may have gaps, failing to achieve an ideal seal. This makes the flange connection prone to leakage. Once a leak occurs, it not only wastes the medium but may also pollute and damage the surrounding environment and equipment. In industries with extremely high sealing requirements, such as chemical and petroleum, leaks can even lead to safety accidents and threaten personnel lives.

[0006] Furthermore, existing flange seals face issues such as wear and aging during long-term use. Poor sealing performance can allow the medium to corrode the seals, accelerating their damage. Once a seal is damaged, it needs to be replaced, which not only increases maintenance costs but also disrupts normal production.

[0007] In summary, the existing problems with the installation of seals on both flat and raised face flanges have seriously affected the sealing performance of flange connections and the stable operation of the system. Therefore, developing more advanced flange sealing technologies and seal installation methods has become a crucial issue that urgently needs to be addressed in the current industrial sector. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a flange with a sealing element positioning function, so as to realize the rapid positioning and assembly of the sealing element, reduce the installation difficulty, and improve the installation efficiency and sealing reliability.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A flange with a sealing element positioning function includes flange bodies arranged opposite each other. The flange bodies have corresponding pipe openings and sealing element positioning holes. The pipe openings are located in the middle of the flange bodies, and the sealing element positioning holes are located on one side of the pipe openings. The sealing element positioning holes are used to insert positioning pins. The gap between adjacent flange bodies on the side away from the sealing element positioning holes forms a sealing element insertion channel.

[0011] The flange body is vertically installed between adjacent pipe sections; the sealing element positioning hole is located below the edge line of the vertically arranged pipe opening, and the sealing element insertion channel is located in the upper gap between adjacent flange bodies.

[0012] Optionally, the radius R of the inscribed circle of the sealing element positioning hole is greater than or equal to the outer radius R1 of the effective sealing surface of the flange body.

[0013] Optionally, the flange body is further provided with bolt holes, and bolts are installed in the bolt holes for connecting adjacent flange bodies.

[0014] Optionally, the inscribed radius R of the sealing element positioning hole is less than or equal to the inscribed radius R2 of the bolt hole.

[0015] Optionally, the bolt holes are centrally symmetrically distributed with respect to the center of the connector opening.

[0016] Optionally, the sealing element positioning hole has at least two.

[0017] Optionally, several of the sealing element positioning holes are distributed on the same arc, and the center of the arc coincides with the center of the connecting pipe opening.

[0018] Optionally, the positioning hole of the seal is a through hole.

[0019] Optionally, the shape of the sealing element positioning hole is circular, strip-shaped, or square.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model provides a flange with a sealing element positioning, which can achieve rapid and accurate positioning of the sealing element when making vertical flange connections. It is easy to install and can improve the sealing reliability of the flange connection, significantly improving the sealing performance and installation efficiency of the flange connection.

[0022] By limiting the location of the seal positioning holes to below the edge line of the connector opening and distributing multiple positioning holes on the same arc, the seal can be quickly and accurately positioned during installation. This design not only improves installation efficiency but also prevents the seal from shifting or tilting during installation, thereby enhancing the sealing effect.

[0023] The seal insertion channel is positioned in the upper gap between adjacent flange bodies, allowing for easy insertion from above. This design simplifies the installation process, especially for large-diameter pipelines, where the seal's larger size and heavier weight make top insertion more convenient, improving both ease of installation and safety.

[0024] By rationally setting the dimensional and positional relationships of the sealing element positioning holes, pipe openings, and bolt holes, it is ensured that the sealing element can completely cover the effective sealing surface, improving the sealing effect, while also avoiding interference between the bolts and the sealing element positioning holes during installation, thus ensuring smooth installation. This design optimizes the overall flange structure and improves the sealing reliability and installation efficiency of the flange connection.

[0025] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 A schematic diagram of a flange structure with sealing positioning function provided by this utility model.

[0028] Figure 2 This is a cross-sectional schematic diagram of a flange with a sealing positioning function provided by this utility model.

[0029] Figure label:

[0030] 1. Flange body, 2. Pipe joint, 3. Bolt hole, 4. Sealing element positioning hole. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Example 1

[0035] Please see Figures 1-2This is a flange with a sealing element positioning function, comprising flange bodies 1 arranged opposite each other. Each flange body 1 has a corresponding connecting port 2 and a sealing element positioning hole 4. The connecting port 2 is located in the middle of the flange body 1, and the sealing element positioning hole 4 is located on one side of the connecting port 2. The sealing element positioning hole 4 is a through hole, used for inserting a positioning pin. The gap between adjacent flange bodies 1 on the side away from the sealing element positioning hole 4 forms a sealing element insertion channel. The flange body 1 is vertically installed between adjacent pipe sections. The sealing element positioning hole 4 is located below the edge line of the vertically arranged connecting port 2, and the sealing element insertion channel is located in the upper gap between adjacent flange bodies 1. During installation, the sealing element can be easily inserted from the upper gap, simplifying the installation process and reducing operational difficulty. This design is also particularly suitable for installation scenarios of large-diameter pipelines. Because the flange sealing elements on large-diameter pipelines are large and heavy, insertion from the top makes operation more convenient, improving the convenience and safety of installation.

[0036] The flange body 1 also has bolt holes 3, into which bolts are installed for connecting adjacent flange bodies 1. The inscribed circle radius R of the sealing element positioning hole 4 is greater than or equal to the outer radius R1 of the effective sealing surface of the flange body 1, ensuring that the sealing element can completely cover the effective sealing surface during installation, thereby ensuring a tight fit between the sealing element and the flange body 1 and improving the sealing effect. Furthermore, the inscribed circle radius R of the sealing element positioning hole 4 is less than or equal to the inscribed circle radius R2 of the bolt hole 3, ensuring that there is no interference between the bolts and the sealing element positioning hole 4 during installation, guaranteeing smooth installation. This dimensional design helps optimize the overall structure of the flange, enabling the flange to maintain good sealing performance while also possessing high installation efficiency and reliability.

[0037] The bolt holes 3 are centrally symmetrically distributed with the center of the pipe opening 2 as the center. Since the position of the bolt holes 3 is fixed and centrally symmetrically distributed, no additional adjustment or alignment is required when installing the bolts, which improves the installation efficiency, ensures that the adjacent flange bodies 1 are subjected to uniform force when connected, avoids flange deformation or leakage caused by uneven force, and improves the stability and reliability of the connection. It also helps to simplify the bolt installation process.

[0038] The shape of the sealing positioning hole 4 includes, but is not limited to, circular, strip, or square shapes.

[0039] Example 2

[0040] Based on the above embodiment 1, at least two sealing element positioning holes 4 are provided, and both are located below the edge line of the connecting pipe port 2; several sealing element positioning holes 4 are distributed on the same arc, and the center of the arc coincides with the center of the connecting pipe port 2; to ensure that the sealing element can be quickly and accurately positioned during installation, significantly improving installation efficiency, and helping to avoid the sealing element from shifting or tilting during installation, thereby ensuring a tight fit between the sealing element and the flange body 1 and improving the sealing effect.

[0041] This utility model relates to a flange with a sealing element positioning function. During installation, adjacent mating flange bodies 1 are first placed vertically, aligning the sealing element positioning hole 4 and bolt hole 3. The positioning pin is then inserted into the sealing element positioning hole 4. Next, the sealing element is inserted through the upper sealing element insertion channel between the flange bodies 1 until it reaches the positioning pin. Under the constraint of the positioning pin, the sealing element can be quickly and accurately positioned. Finally, bolts are inserted into the bolt hole 3 to secure the adjacent flange bodies 1 together. Using this utility model for flange sealing element positioning and installation improves the convenience and accuracy of sealing element installation, further enhancing the sealing reliability of flange connections. The flange structure of this utility model is simple, and the sealing element is easy to install and provides good sealing performance.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flange with a sealing positioning function, characterized in that: The flange includes a flange body (1) arranged opposite to each other. The flange body (1) has a corresponding pipe port (2) and a sealing element positioning hole (4). The pipe port (2) is located in the middle of the flange body (1), and the sealing element positioning hole (4) is located on one side of the pipe port (2). The sealing element positioning hole (4) is used to insert a positioning pin. The gap between adjacent flange bodies (1) on the side away from the sealing element positioning hole (4) forms a sealing element insertion channel. The flange body (1) is vertically installed between adjacent pipe sections; the sealing positioning hole (4) is located below the edge line of the vertically arranged pipe opening (2), and the sealing insertion channel is located in the upper gap between adjacent flange bodies (1).

2. The flange with sealing positioning function according to claim 1, characterized in that: The radius R of the inscribed circle of the positioning hole (4) of the sealing element is greater than or equal to the outer radius R1 of the effective sealing surface of the flange body (1).

3. The flange with sealing positioning function according to claim 1, characterized in that: The flange body (1) is also provided with bolt holes (3), and bolts are installed in the bolt holes (3) for connecting adjacent flange bodies (1).

4. The flange with sealing positioning function according to claim 3, characterized in that: The radius R of the inscribed circle of the positioning hole (4) of the seal is less than or equal to the radius R2 of the inscribed circle of the bolt hole (3).

5. The flange with sealing positioning function according to claim 3, characterized in that: The bolt holes (3) are centrally symmetrically distributed with the center of the connecting pipe (2) as the center.

6. The flange with sealing positioning function according to claim 1, characterized in that: The sealing element positioning hole (4) is provided with at least two.

7. The flange with sealing positioning function according to claim 6, characterized in that: Several of the sealing positioning holes (4) are distributed on the same arc, and the center of the arc coincides with the center of the connecting pipe (2).

8. The flange with sealing positioning function according to claim 1, characterized in that: The positioning hole (4) of the seal is a through hole.

9. The flange with sealing positioning function according to claim 1, characterized in that: The sealing positioning hole (4) is circular, strip-shaped or square.

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