High toughness weldable reinforced flange

Abstract

The utility model relates to flange ring technical field discloses a kind of high toughness weldable reinforced flanges, including flange ring, the outer wall of the flange ring is fixedly connected with conical overring, the one end of the conical overring is communicated and is provided with inner sleeve pipe, the outer wall of the one end of the inner sleeve pipe close to conical overring is fixedly connected with welding ring, the outer wall of the welding ring is provided with welding bevel.This utility model through when connecting pipeline, first the pipeline end to be connected with inner sleeve pipe alignment, make pipeline inner wall and inner sleeve pipe outer wall adhere, welding bevel of welding ring outer wall and pipeline end form the welding space of adaptation at this time, the accurate welding of flange and pipeline can be realized by welding bevel, increase welding area while facilitate solder filling, improve welding strength, to reduce the possibility that solder appears crack, guarantee the safety of pipeline, improve the connection life of flange and pipeline, reduce the maintenance cost of pipeline.

Description

Technical Field

[0001] This utility model relates to the field of flange ring technology, and in particular to a high-toughness weldable reinforced flange. Background Technology

[0002] Flange rings are ring-shaped components that play a core connecting role in pipe and equipment connections, and are also a key basic part of flange assemblies. They are widely used in industrial fields such as petroleum, chemical, water treatment, and power, as well as civil applications such as construction and municipal engineering. Their core function is to firmly connect two pipe sections, pipes and valves / pumps / storage tanks, etc., through their own ring structure and in conjunction with bolts, gaskets and other accessories. At the same time, they rely on the contact surface with the mating parts to achieve a seal and prevent the leakage of fluids (liquids, gases, slurries, etc.) in the pipe.

[0003] In existing technologies, flanges are typically welded directly to pipelines. The welded area must withstand the medium pressure, vibration load, and temperature stress of the pipeline system for a long time, which can easily lead to stress concentration in the weld and heat-affected zone. After long-term use, cracks are prone to propagate, eventually leading to the risk of fracture. This seriously affects the sealing and safety of the pipeline, shortens the connection life between the flange and the pipeline, and increases the maintenance cost and the probability of safety accidents in the pipeline system. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-toughness weldable reinforced flange.

[0005] This utility model is achieved by the following technical solution: a high-toughness weldable reinforced flange, including a flange ring, a tapered transition ring fixedly connected to the outer wall of the flange ring, an inner sleeve connected to the end of the tapered transition ring away from the flange ring, a welding ring fixedly connected to the outer wall of the end of the inner sleeve close to the tapered transition ring, and a welding bevel provided on the outer wall of the welding ring.

[0006] With the above technical solution, when connecting pipes, the end of the pipe to be connected is first aligned with the inner sleeve, so that the inner wall of the pipe fits against the outer wall of the inner sleeve. At this time, the welding bevel of the outer wall of the welding ring and the end of the pipe form a suitable welding space. The welding bevel enables precise welding between the flange and the pipe, increases the welding area, facilitates the filling of the solder, improves the welding strength, thereby reducing the possibility of solder cracking, ensuring the safety of the pipeline, improving the connection life of the flange and the pipeline, and reducing the maintenance cost of the pipeline.

[0007] As a further improvement to the above solution, the flange ring is provided with a number of threaded mounting holes, which are evenly distributed around the flange ring as the center.

[0008] As a further improvement to the above solution, a reinforcing support plate is fixedly connected to the outer wall of the flange ring, the reinforcing support plate is fixedly connected to the outer wall of the tapered transition ring, and the reinforcing support plate is fixedly connected to the outer wall of the welding ring.

[0009] Through the above technical solution, the flange ring is connected to other flanges or equipment with bolts through a number of threaded mounting holes evenly arranged with its center. The evenly distributed threaded mounting holes can disperse the force and avoid excessive local stress. The reinforced support plate is fixedly connected to the outer wall of the flange ring, the tapered transition ring and the welded ring, further enhancing the connection stability between the three and improving the deformation resistance of the overall structure.

[0010] As a further improvement to the above solution, a fixing rod is fixedly connected to the end of the inner sleeve away from the tapered transition ring. Four fixing rods are provided, and the four fixing rods are evenly arranged with the inner sleeve as the center.

[0011] As a further improvement to the above solution, a limiting piece is fixedly connected to the outer wall of the end of the fixing rod away from the inner sleeve. Four limiting pieces are provided, and the four limiting pieces are evenly arranged with the inner sleeve as the center.

[0012] As a further improvement to the above solution, a sealing ring is provided on the outer wall of the fixing rod, and a guide groove is provided inside the sealing ring, which is slidably connected to the outer wall of the fixing rod.

[0013] As a further improvement to the above solution, the guide groove is provided with four mounting slots, which are evenly arranged with the sealing ring as the center.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention aligns the end of the pipe to be connected with the inner sleeve during pipe connection, ensuring the inner wall of the pipe fits snugly against the outer wall of the inner sleeve. At this point, the welding bevel on the outer wall of the welding ring forms a suitable welding space with the end of the pipe. This welding bevel allows for precise welding of the flange and pipe, increasing the welding area and facilitating filler metal, thus improving welding strength and reducing the possibility of weld cracks. This ensures pipeline safety, extends the connection life of the flange and pipe, and reduces pipeline maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the flange ring of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle; Figure 4This is a schematic diagram of the reinforced support plate structure of this utility model; Figure 5 This is a schematic diagram of the sealing ring structure of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram of section B.

[0016] Explanation of key symbols: 1. Flange ring; 2. Tapered transition ring; 3. Inner sleeve; 4. Welding ring; 5. Welding bevel; 6. Threaded mounting hole; 7. Reinforcing support plate; 8. Fixing rod; 9. Limiting plate; 10. Sealing ring; 11. Guide groove; 12. Mounting groove. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0018] Example: Please combine Figure 1-6 This embodiment provides a high-toughness weldable reinforced flange, characterized in that it includes a flange ring 1, a tapered transition ring 2 fixedly connected to the outer wall of the flange ring 1, an inner sleeve 3 connected to the end of the tapered transition ring 2 away from the flange ring 1, a welding ring 4 fixedly connected to the outer wall of the end of the inner sleeve 3 near the tapered transition ring 2, and a welding bevel 5 formed on the outer wall of the welding ring 4.

[0019] The flange ring 1 has several threaded mounting holes 6 inside, which are evenly distributed around the flange ring 1.

[0020] A reinforcing support plate 7 is fixedly connected to the outer wall of the flange ring 1. The reinforcing support plate 7 is fixedly connected to the outer wall of the tapered transition ring 2 and the outer wall of the welding ring 4.

[0021] A fixing rod 8 is fixedly connected to one end of the inner sleeve 3 away from the tapered transition ring 2. There are four fixing rods 8, which are evenly arranged with the inner sleeve 3 as the center.

[0022] A limiting piece 9 is fixedly connected to the outer wall of the end of the fixing rod 8 away from the inner sleeve 3. There are four limiting pieces 9, which are evenly arranged with the inner sleeve 3 as the center.

[0023] A sealing ring 10 is provided on the outer wall of the fixed rod 8, and a guide groove 11 is provided inside the sealing ring 10. The guide groove 11 is slidably connected to the outer wall of the fixed rod 8.

[0024] The guide groove 11 has four mounting grooves 12 inside, which are evenly arranged with the sealing ring 10 as the center.

[0025] The implementation principle of a high-toughness weldable reinforced flange in this embodiment is as follows: When connecting pipes, first align the end of the pipe to be connected with the inner sleeve 3, so that the inner wall of the pipe fits against the outer wall of the inner sleeve 3. At this time, the welding bevel 5 on the outer wall of the welding ring 4 forms a suitable welding space with the end of the pipe. Through the welding bevel 5, precise welding between the flange and the pipe can be achieved, increasing the welding area and facilitating filler metal, improving welding strength, thereby reducing the possibility of weld metal cracking, ensuring pipeline safety, improving the connection life of the flange and the pipeline, and reducing pipeline maintenance costs. The flange ring 1 is connected to bolts and other components through several threaded mounting holes 6 evenly arranged around its center. For flange or equipment connections, the evenly distributed threaded mounting holes 6 can disperse the force and avoid excessive local stress. The reinforcing support plate 7 is also fixedly connected to the outer wall of the flange ring 1, the tapered transition ring 2, and the welding ring 4, further enhancing the connection stability between the three and improving the overall structure's resistance to deformation. When installing the sealing ring 10, in order to prevent it from falling off when the inner sleeve 3 is inserted into the pipe, the mounting groove 12 on the sealing ring 10 is first inserted into the limiting piece 9. Then, the sealing ring 10 is rotated, causing the fixing rod 8 to slide on the outer wall of the guide groove 11. The sealing ring 10 is fixed to the outer wall of the fixing rod 8 by its elasticity, so that the sealing ring 10 will not fall off when the inner sleeve 3 is inserted.

[0026] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-toughness weldable reinforced flange, characterized in that, Includes a flange ring (1), a tapered transition ring (2) is fixedly connected to the outer wall of the flange ring (1), an inner sleeve (3) is connected to the end of the tapered transition ring (2) away from the flange ring (1), a welding ring (4) is fixedly connected to the outer wall of the end of the inner sleeve (3) close to the tapered transition ring (2), and a welding bevel (5) is opened on the outer wall of the welding ring (4).

2. The high-toughness weldable reinforced flange as described in claim 1, characterized in that: The flange ring (1) has a threaded mounting hole (6) inside. There are several threaded mounting holes (6), and the several threaded mounting holes (6) are evenly arranged with the flange ring (1) as the center.

3. The high-toughness weldable reinforced flange as described in claim 1, characterized in that: The flange ring (1) is fixedly connected to a reinforcing support plate (7), which is fixedly connected to the outer wall of the tapered transition ring (2) and the outer wall of the welding ring (4).

4. The high-toughness weldable reinforced flange as described in claim 1, characterized in that: The inner sleeve (3) is fixedly connected to a fixing rod (8) at one end away from the tapered transition ring (2). There are four fixing rods (8), which are evenly arranged with the inner sleeve (3) as the center.

5. A high-toughness weldable reinforced flange as described in claim 4, characterized in that: The fixing rod (8) is fixedly connected to the outer wall of the end away from the inner sleeve (3) by a limiting piece (9). There are four limiting pieces (9), and the four limiting pieces (9) are evenly arranged with the inner sleeve (3) as the center.

6. A high-toughness weldable reinforced flange as described in claim 5, characterized in that: A sealing ring (10) is provided on the outer wall of the fixing rod (8), and a guide groove (11) is provided inside the sealing ring (10). The guide groove (11) is slidably connected to the outer wall of the fixing rod (8).

7. A high-toughness weldable reinforced flange as described in claim 6, characterized in that: The guide groove (11) has an installation groove (12) inside. There are four installation grooves (12), and the four installation grooves (12) are evenly arranged with the sealing ring (10) as the center.

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