Flanging flange for wear-resistant pipe

Abstract

The utility model relates to the technical field of pipeline connecting devices, and discloses a flanged flange for a wear-resistant pipe, which comprises a gasket, a flanged joint I and a flanged joint II are respectively arranged on two sides of the gasket, and a plurality of through holes are formed in close sides of a flange ring I and a flange ring II. Part of the through holes in the second flange ring are in threaded connection with guide pins, a plurality of positioning rods are fixedly connected to the side, close to the first flange ring, of the second flange ring, a conical head is arranged at one end of each positioning rod, and a first conical hole is formed in the side, close to the second flange ring, of the first flange ring. According to the utility model, the second flange ring and the first flange ring are guided through the guide pin, the through hole, the positioning rod and the first conical hole, so that the second flange joint, the first flange joint and the gasket are connected, and the problems of difficult positioning and long installation period due to the fact that a large-diameter flange is heavy and the coaxiality is difficult to control are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe connection devices, and in particular to a wear-resistant pipe flange. Background Technology

[0002] Flanges (also known as loose flanges) are a common type of pipe connection component, mainly composed of a flange ring and a flanged short section (or flanged joint), and are widely used in industries such as chemical, petroleum, water treatment, and shipbuilding.

[0003] Currently, in the connection of large-diameter pipelines, the installation of flanged flanges is usually carried out using hoisting equipment and special tools; however, during installation, due to the large weight of large-diameter flanges and the difficulty in controlling coaxiality, positioning difficulties and long installation cycles often occur. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a wear-resistant pipe flange, which aims to solve the problems of difficult positioning and long installation cycle caused by the large weight of large-diameter flanges and the difficulty in controlling coaxiality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant pipe flange, comprising a gasket, with flange joint one and flange joint two respectively provided on both sides of the gasket. A flange ring one is slidably connected to the outer wall of flange joint one, and a flange ring two is slidably connected to the outer wall of flange joint two. Multiple through holes are provided on the side of flange ring one and flange ring two that are close to each other. A guide pin is threadedly connected to some of the through holes on flange ring two. The outer wall of the guide pin passes through the through hole on flange ring one. The end of the guide pin away from flange ring two is conical. Multiple positioning rods are fixedly connected to the side of flange ring two that is close to flange ring one. A conical head is provided at one end of the positioning rod. A conical hole one is provided on the side of flange ring one that is close to flange ring two. The outer wall of the conical head and the inner wall of the conical hole one are in contact.

[0006] Preferably, both the first and second flanged joints have pipes connected to opposite sides.

[0007] Preferably, the second flange ring is provided with a connecting bolt, the outer wall of the connecting bolt passes through the through holes on the first flange ring and the second flange ring, and one end of the connecting bolt is provided with a nut.

[0008] Preferably, the flanged joint has multiple conical holes on the side near the gasket, and multiple positioning pins are fixedly connected to one side of the gasket, with the outer wall of the positioning pins fitting against the inner wall of the conical holes.

[0009] Preferably, groove 1 and groove 2 are provided on adjacent sides of the flanged joint 1 and flanged joint 2, and convex sealing ring 1 and convex sealing ring 2 are fixedly connected to both sides of the gasket. The inner wall of groove 1 fits with the outer wall of convex sealing ring 1, and the inner wall of groove 2 fits with the outer wall of convex sealing ring 2.

[0010] Preferably, the positioning pin is located between the first convex sealing ring and the second convex sealing ring.

[0011] Preferably, one end of the guide pin is threaded with an internal thread, which is disposed on the inner sidewall of the through hole.

[0012] Preferably, the plurality of tapered holes are evenly distributed on the flange joint, and the plurality of tapered heads and connecting bolts are evenly distributed on the flange ring.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by placing flange ring two and flange ring one on the outer walls of flange joint two and flange joint one respectively, by installing a gasket on flange ring one, and by using guide pins and through holes, positioning rods and tapered holes to guide flange ring two and flange ring one, flange ring two and flange ring one are made to fit together, thereby solving the problem that due to the large weight of large diameter flanges, coaxiality is difficult to control, positioning difficulties often occur and the installation cycle is long.

[0015] 2. In this utility model, the gasket is installed by fitting the positioning pin and the tapered hole two together, fitting the outer wall of the convex sealing ring one and the inner wall of the groove one together, and fitting the outer wall of the convex sealing ring two and the inner wall of the groove two together, thereby improving the sealing ability of the gasket. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the flange ring of a wear-resistant pipe flange proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of a flanged joint for a wear-resistant pipe flange proposed in this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of a wear-resistant pipe flange proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the two-dimensional structure of the flange ring of a wear-resistant pipe flange proposed in this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of a gasket for a wear-resistant pipe flange proposed in this utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of a flanged joint for a wear-resistant pipe flange proposed in this utility model.

[0022] Legend:

[0023] 1. Flange ring one; 2. Tapered hole one; 3. Through hole; 4. Groove one; 5. Tapered hole two; 6. Groove two; 7. Flanged joint one; 8. Pipe; 9. Flanged joint two; 10. Connecting bolt; 11. Flange ring two; 12. Guide pin; 13. Internal thread; 14. Positioning rod; 15. Tapered head; 16. Outer convex sealing ring one; 17. Positioning pin; 18. Outer convex sealing ring two; 19. Gasket. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of this utility model provides: a wear-resistant pipe flange, including a gasket 19, with flange joint 1 7 and flange joint 2 9 respectively provided on both sides of the gasket 19. A flange ring 1 is slidably connected to the outer wall of flange joint 1 7, and a flange ring 2 11 is slidably connected to the outer wall of flange joint 2 9. Multiple through holes 3 are opened on the side of flange ring 1 1 and flange ring 2 11 that are close to each other. A guide pin 12 is threadedly connected to some of the through holes 3 on flange ring 2 11. The outer wall of the guide pin 12 passes through the through holes 3 on flange ring 1 1. The end of the guide pin 12 away from flange ring 2 11 is conical. Multiple positioning rods 14 are fixedly connected to the side of flange ring 2 11 that is close to flange ring 1 1. A conical head 15 is provided at one end of the positioning rod 14. A conical hole 2 is provided on the side of flange ring 1 1 that is close to flange ring 2 11. The outer wall of the conical head 15 and the inner wall of the conical hole 2 are fitted together.

[0026] In this embodiment, Figure 3The orientation is indicated by the front, back, left, and right sides. Specifically, when installing the flange, the guide pin 12 is connected to the threaded connection of part of the through hole 3 on the flange ring 11. The guide pin 12 is installed into the through hole 3 of the flange ring 11, the gasket 19 is installed onto the flange ring 1, the flange ring 11 is placed on the outer wall of the flange joint 9, and the flange ring 1 is placed on the outer wall of the flange joint 7. The flange ring 11 is pushed to move towards the flange joint 7, so that the guide pin 12 is close to the flange ring 1 on the flange joint 7. The flange ring 11 is then rotated so that the positioning rod 14 is aligned with the tapered hole 2, and the conical end of the guide pin 12 is aligned with the through hole 3 on the flange ring 1. Continue moving flange ring 11 towards flange joint 7, so that guide pin 12 passes through through hole 3 on flange joint 7, thus achieving initial fit between flange ring 11 and flange ring 1. Continue moving flange ring 11 towards flange joint 7, so that tapered head 15 slides into tapered hole 2. Through the tapered design of tapered head 15, the fit between the outer wall of tapered head 15 and the inner wall of tapered hole 2 guides flange ring 11 and flange ring 1, so that flange ring 11 and flange ring 1 are fully fitted. This solves the problem of difficult positioning and long installation cycle caused by the large weight of large diameter flanges and the difficulty in controlling coaxiality.

[0027] Reference Figure 3 Both flanged joint 7 and flanged joint 29 have pipes 8 connected to their opposite sides.

[0028] Specifically, the connection between the two pipes 8 is completed by welding flange joint 7 to pipe 8, welding flange joint 9 to pipe 8, and then connecting flange joint 7 and flange joint 9 together through flange ring 1 and flange ring 2 11.

[0029] Reference Figure 3 A connecting bolt 10 is provided on flange ring 11. The outer wall of the connecting bolt 10 passes through the through hole 3 on flange ring 1 and flange ring 11. A nut is provided at one end of the connecting bolt 10.

[0030] Specifically, after flange ring 2 11 and flange ring 1 are fully fitted, the connecting bolt 10 is passed through the through hole 3 on flange ring 2 11 and flange ring 1, and then the connection between flange ring 2 11 and flange ring 1 is completed by the nut on the connecting bolt 10, thereby realizing the connection and fixation of flange joint 1 7 and flange joint 2 9.

[0031] Reference Figure 2 and Figure 5 The flanged connector 17 has multiple tapered holes 25 on the side near the gasket 19. Multiple positioning pins 17 are fixedly connected to one side of the gasket 19. The outer wall of the positioning pin 17 fits against the inner wall of the tapered hole 25.

[0032] Specifically, by fitting the locating pin 17 and the tapered hole 2 5, the gasket 19 is fitted onto the flange joint 1 7, completing the installation of the gasket 19. This increases the sealing area between the gasket 19 and the flange joint 1 7, thereby improving the sealing performance of the flange.

[0033] Reference Figure 2 , Figure 5 and Figure 6 The flanged joint 17 and flanged joint 29 are respectively provided with groove 14 and groove 26 on their adjacent sides. The two sides of the gasket 19 are respectively fixedly connected with convex sealing ring 16 and convex sealing ring 28. The inner wall of groove 14 and the outer wall of convex sealing ring 16 fit together, and the inner wall of groove 26 and the outer wall of convex sealing ring 28 fit together.

[0034] Specifically, when installing gasket 19, align locating pin 17 with tapered hole 2 5, so that the outer wall of the convex sealing ring 16 on one side of locating pin 17 fits against the inner wall of groove 4, and the outer wall of the convex sealing ring 2 18 fits against the inner wall of groove 2 6, thereby completing the installation of gasket 19 onto flange joint 7. Similarly, when connecting and tightening flange joint 17 and flange joint 2 9, make the outer walls of the convex sealing ring 16 and convex sealing ring 2 18 on the other side fit against the inner walls of groove 4 and groove 2 6 on flange joint 2 9, respectively, thus completing the installation of gasket 19; and through the design of convex sealing ring 16 and convex sealing ring 2 18, the interception of fluid in pipe 8 is improved, thereby improving the sealing ability of gasket 19.

[0035] Reference Figure 5 The locating pin 17 is located between the outer convex sealing ring 16 and the outer convex sealing ring 18.

[0036] Specifically, the outer convex sealing ring 16 and the outer convex sealing ring 18 are used to seal and protect the inner and outer sides of the positioning pin 17, thereby improving the installation accuracy of the gasket 19 and enhancing its sealing capability.

[0037] Reference Figure 4 One end of the guide pin 12 is threaded with an internal thread 13, which is located on the inner wall of the through hole 3.

[0038] Specifically, the guide pin 12 and the through hole 3 are connected by the internal thread 13 and the guide pin 12, and then the guide pin 12 can be installed on the flange ring 11.

[0039] Reference Figure 1 , Figure 3 and Figure 4 Multiple tapered holes 25 are evenly distributed on flange joint 7, and multiple tapered heads 15 and connecting bolts 10 are evenly distributed on flange ring 21.

[0040] Specifically, the uniform distribution of the tapered holes 25 on the flange joint 17 ensures the uniformity of the force on the gasket 19 between the flange joint 17 and the flange joint 29. The uniform distribution of the tapered head 15 on the flange ring 21 improves the pressure-bearing capacity and the accuracy of the connection when the flange ring 11 and the flange ring 21 are mated. The uniform distribution of the connecting bolts 10 on the flange ring 21 enhances the connection stability between the flange ring 11 and the flange ring 21.

[0041] Working principle: When installing the flange, the flange 17 and flange 29 are connected to the pipe 8 respectively, the positioning pin 17 is aligned with the tapered hole 25, and the outer wall of the outer convex sealing ring 16 and the inner wall of the groove 4 are fitted together, and the outer wall of the outer convex sealing ring 28 and the inner wall of the groove 26 are fitted together, thus completing the installation of the gasket 19.

[0042] Place flange ring 11 on the outer wall of flange joint 29, and flange ring 1 on the outer wall of flange joint 7. Connect the guide pin 12 to flange ring 11 via internal thread 13 and threaded connection. Push flange ring 11 towards flange joint 7, bringing the guide pin 12 close to flange ring 1 on flange joint 7. Rotate flange ring 11 so that positioning rod 14 aligns with tapered hole 2, and the conical end of guide pin 12 aligns with through hole 3 on flange ring 1. Continue moving flange ring 11 towards flange joint 7, allowing guide pin 12 to pass through through hole 3 on flange joint 7, thus completing flange ring 11. Flange ring 11 and flange ring 1 are initially fitted together. Flange ring 11 is then moved toward flange joint 7, allowing the tapered head 15 to slide into the tapered hole 2. The tapered design of the tapered head 15 and the fit between the outer wall of the tapered head 15 and the inner wall of the tapered hole 2 guide flange ring 11 and flange ring 1, ensuring a complete fit. The connecting bolt 10 is then passed through the through hole 3 on flange ring 11 and flange ring 1, and the connection between flange ring 11 and flange ring 1 is completed by using the nut on the connecting bolt 10. This solves the problem of difficult positioning and long installation cycles caused by the large weight of large-diameter flanges and the difficulty in controlling coaxiality.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flanged, rolled, wear-resistant pipe comprising a gasket (19), characterised in that: The gasket (19) is provided with a flange joint one (7) and a flange joint two (9) on both sides, respectively, the outer wall of the flange joint one (7) is slidably connected with a flange ring one (1), the outer wall of the flange joint two (9) is slidably connected with a flange ring two (11), a plurality of through holes (3) are formed on the side close to the flange ring one (1) of the flange ring two (11), a plurality of guide pins (12) are threadedly connected with part of the through holes (3) on the flange ring two (11), the outer wall of the guide pin (12) penetrates the through hole (3) on the flange ring one (1), the end of the guide pin (12) away from the flange ring two (11) is conical, a plurality of positioning rods (14) are fixedly connected to the side of the flange ring two (11) close to the flange ring one (1), a tapered head (15) is arranged at one end of the positioning rod (14), a tapered hole one (2) is arranged on the side of the flange ring one (1) close to the flange ring two (11), and the outer wall of the tapered head (15) is attached to the inner wall of the tapered hole one (2).

2. A flanged and flared end for a wear tube according to claim 1, wherein: The flange joint one (7) and the flange joint two (9) are connected with pipes (8) on the sides away from each other.

3. A flanged and flared end for a wear tube according to claim 1, wherein: A connecting bolt (10) is arranged on the flange ring two (11), the outer wall of the connecting bolt (10) penetrates the through holes (3) on the flange ring one (1) and the flange ring two (11), and a nut is arranged at one end of the connecting bolt (10).

4. A flanged end for a wear tube according to claim 3, wherein: A plurality of tapered hole twos (5) are arranged on the side of the flange joint one (7) close to the gasket (19), and a plurality of positioning pins (17) are fixedly connected to one side of the gasket (19), and the outer wall of the positioning pin (17) is attached to the inner wall of the tapered hole two (5).

5. A flanged end for a wear tube according to claim 1 wherein: Grooves one (4) and grooves two (6) are formed on the sides close to each other of the flange joint one (7) and the flange joint two (9), outer convex sealing rings one (16) and outer convex sealing rings two (18) are fixedly connected to both sides of the gasket (19), the inner wall of the groove one (4) is attached to the outer wall of the outer convex sealing ring one (16), and the inner wall of the groove two (6) is attached to the outer wall of the outer convex sealing ring two (18).

6. A flanged end for a wear tube according to claim 4, wherein: The positioning pin (17) is located between the outer convex sealing ring one (16) and the outer convex sealing ring two (18).

7. A flanged and flared end for a wear tube according to claim 1 wherein: A female thread (13) is threadedly connected to one end of the guide pin (12), and the female thread (13) is arranged on the inner side wall of the through hole (3).

8. A flanged and flared end for a wear tube according to claim 4, wherein: A plurality of the tapered hole twos (5) are uniformly distributed on the flange joint one (7), and a plurality of the tapered heads (15) and the connecting bolts (10) are uniformly distributed on the flange ring two (11).

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