Flange type pipe fitting pipeline sealing device

Abstract

The utility model discloses a flange type pipe fitting pipeline sealing device, which belongs to the technical field of pipeline sealing and comprises a first flange and a second flange matched with the first flange, a first flange extending outwards is arranged on the inner side of the first flange, a first annular groove is arranged on the outer side of the first flange, and a second flange extending outwards is arranged on the second flange. A first flange extending outwards is arranged on the outer side of the first flange, a first annular groove is formed in the inner side of the second flange, a first sealing ring is arranged in the first annular groove, a second flange extending outwards is arranged on the outer side of the second flange, a second annular groove is formed in the inner side of the second flange, a second sealing ring is arranged in the second annular groove, and fixing assemblies are arranged on the outer side of the first flange and the outer side of the second flange. According to the flange type pipe fitting pipeline sealing device, through the arrangement of the double-layer sealing piece and the fixing assembly, the sealing performance of the first flange and the second flange is guaranteed, and the sealing strength is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline sealing technology, and in particular to a flanged pipe fitting pipeline sealing device. Background Technology

[0002] Flanges are connecting parts between shafts, used for connecting pipe ends. The common sealing method is through sealing elements, but after prolonged use, problems such as oxidation and aging may occur, causing pipe leaks.

[0003] Application No. 201020159067.7 discloses a flange sealing device, including a flange and a blind plate matching the flange. A sealing element is provided between the flange and the blind plate, and a sealing element is also provided within the sealing element. The flange and the blind plate are connected by screws disposed in the gap between the two sealing elements. Although this sealing device has double-layer sealing elements, in actual installation, because the two sealing elements are located on both sides of the bolt and there is no limiting effect on the sealing elements, the position of the sealing elements can easily change when the bolts are aligned for installation. In addition, the flange and the blind plate are directly fixed with bolts, and after long-term use, the bolts are prone to loosening, increasing the risk of leakage. Summary of the Invention

[0004] The purpose of this invention is to provide a flanged pipe fitting sealing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a flanged pipe fitting sealing device, including a first flange and a second flange that matches the first flange. The first flange has a first flange extending outward on its inner side and a first annular groove on its outer side, in which a first sealing ring is disposed. The second flange has a second flange extending outward on its outer side and a second annular groove on its inner side, in which a second sealing ring is disposed. Fixing components are provided on the outer sides of the first flange and the second flange.

[0006] Preferably, the first flange and the first annular groove are coaxially arranged.

[0007] Preferably, the second flange and the second annular groove are coaxially arranged.

[0008] Preferably, the first flange is adapted to the second annular groove.

[0009] Preferably, the second flange is adapted to the first annular groove.

[0010] Preferably, both the first sealing ring and the second sealing ring are flexible corrosion-resistant sealing rings.

[0011] Preferably, the fixing component includes a first fixing ring and a second fixing ring, and the two sides of the first fixing ring and the two sides of the second fixing ring are fixed by bolts.

[0012] Preferably, the first fixing ring is provided with a first ear plate at both ends, and the second fixing ring is provided with a second ear plate at both ends. Both the first ear plate and the second ear plate are provided with bolt holes, and the bolts are adapted to the bolt holes.

[0013] Preferably, both the first fixing ring and the second fixing ring have annular grooves on their inner sides.

[0014] Therefore, the flange-type pipe sealing device described above has the following beneficial effects:

[0015] (1) It is equipped with a double-layer sealing ring, and the internal structure is Z-shaped when the two flanges are connected, which ensures the safety of the seal;

[0016] (2) A first annular groove and a second annular groove are provided to limit the sealing ring and prevent the position of the sealing ring from changing during installation, which would affect the installation.

[0017] (3) The flange is fixed by two fixing rings. The fixing rings cover both sides of the flange to prevent gaps from forming after long-term transportation and to ensure the sealing between the two flanges.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a flange-type pipe fitting sealing device according to an embodiment of the present utility model;

[0020] Figure 2 This is a top view of the fixing component of an embodiment of a flange-type pipe fitting sealing device of this utility model;

[0021] Figure Labels

[0022] 1. First flange; 2. Second flange; 3. First flange; 4. First annular groove; 5. First annular sealing ring; 6. Second flange; 7. Second annular groove; 8. Second sealing ring; 9. First retaining ring; 10. Second retaining ring; 11. First ear plate; 12. Second ear plate; 13. Bolt. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Example

[0026] like Figure 1-2 As shown, this utility model provides a flanged pipe fitting sealing device, including a first flange 1 and a second flange 2 that matches the first flange 1. The first flange 1 has an outwardly extending first flange 3 on its inner side and a first annular groove 4 on its outer side. The first flange 3 and the first annular groove 4 are coaxially arranged. A first sealing ring 5 is disposed within the first annular groove 4. The second flange 2 has an outwardly extending second flange 6 on its outer side and a second annular groove 7 on its inner side. The second flange 6 and the second annular groove 7 are coaxially arranged. A second sealing ring 8 is disposed within the second annular groove 7. Both the first sealing ring 5 and the second sealing ring 8 are flexible, corrosion-resistant sealing rings. The flexible, corrosion-resistant sealing rings ensure an effective seal under pressure and quickly return to their original shape after the pressure is released, extending their service life.

[0027] Specifically, the first flange 3 is adapted to the second annular groove 7. The second flange 6 is adapted to the first annular groove 4. In this embodiment, when the first flange 1 and the second flange 2 are connected, a Z-shaped structure is formed internally, and the sealing effect is further ensured by the setting of double-layer sealing rings.

[0028] The first flange 1 and the second flange 2 are provided with fixing components on their outer sides for fixing the two flanges. The fixing components include a first fixing ring 9 and a second fixing ring 10. Both the first fixing ring 9 and the second fixing ring 10 are provided with annular grooves on their inner sides. The first fixing ring 9 and the second fixing ring 10 are fixed by bolts 13.

[0029] Specifically, the first fixing ring 9 has a first ear plate 11 at both ends, and the second fixing ring 10 has a second ear plate 12 at both ends. Both the first ear plate 11 and the second ear plate 12 have bolt holes, and the bolt 13 is adapted to the bolt holes.

[0030] In use, the sealing device of this utility model first places sealing rings into the two annular grooves respectively, then aligns the two flanges and fixes them using the fixing assembly. During fixing, align the two ear plates on the first fixing ring 9 and the second fixing ring 10, and place the bolt 13 into the central bolt hole on the ear plate to complete the fixing.

[0031] Therefore, the present invention adopts the above-mentioned flange-type pipe sealing device, which ensures the sealing performance of the first flange and the second flange and improves the sealing strength by setting up double-layer sealing elements and fixing components.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A flanged pipe fitting sealing device, characterized in that: The first flange includes a first flange and a second flange that matches the first flange. The first flange has a first flange extending outward on its inner side and a first annular groove on its outer side. A first sealing ring is disposed in the first annular groove. The second flange has a second flange extending outward on its outer side and a second annular groove on its inner side. A second sealing ring is disposed in the second annular groove. Fixing components are disposed on the outer sides of the first flange and the second flange.

2. The flanged pipe fitting sealing device according to claim 1, characterized in that: The first flange and the first annular groove are coaxially arranged.

3. A flanged pipe fitting sealing device according to claim 1, characterized in that: The second flange and the second annular groove are coaxially arranged.

4. A flanged pipe fitting sealing device according to claim 1, characterized in that: The first flange is adapted to the second annular groove.

5. A flanged pipe fitting sealing device according to claim 1, characterized in that: The second flange is adapted to the first annular groove.

6. A flanged pipe fitting sealing device according to claim 1, characterized in that: Both the first sealing ring and the second sealing ring are flexible corrosion-resistant sealing rings.

7. A flanged pipe fitting sealing device according to claim 1, characterized in that: The fixing component includes a first fixing ring and a second fixing ring, and the two sides of the first fixing ring and the two sides of the second fixing ring are fixed by bolts.

8. A flanged pipe fitting sealing device according to claim 7, characterized in that: The first fixing ring has a first ear plate at both ends, and the second fixing ring has a second ear plate at both ends. Both the first ear plate and the second ear plate have bolt holes, and the bolts are adapted to the bolt holes.

9. A flanged pipe fitting sealing device according to claim 7, characterized in that: Both the first fixing ring and the second fixing ring have annular grooves on their inner sides.

Images