A kind of spherical tank is used big nozzle flange thick wall pipe and flange integral reinforcing structure

Abstract

The utility model belongs to the technical field of spherical tank equipment, concretely is a kind of big connecting pipe flange thickening wall pipe and flange integral reinforcing structure for spherical tank, including spherical tank body, two connecting pipes and flanges of symmetrical arrangement, two connecting pipes are respectively fixedly welded with the both ends of spherical tank body, the outer wall of connecting pipe and spherical tank body is fixedly connected by first reinforcing ring, the end of connecting pipe away from spherical tank body is fixedly connected with multiple locking blocks, locking block and flange are fixedly connected by locking bolt;Connecting pipe extends to the inside of spherical tank body, can effectively improve the sealing effect between connecting pipe and spherical tank body, and the setting of second reinforcing ring can improve the connecting strength between spherical tank body and connecting pipe.The utility model can effectively improve the connecting strength between connecting pipe and spherical tank body by the setting of multiple reinforcing structures, and the setting of locking bolt, and the connecting stability between flange and connecting pipe is improved, to effectively prevent the leakage of spherical tank.

Description

Technical Field

[0001] This utility model relates to the field of spherical tank equipment technology, and in particular to an integral reinforcement structure for a large connecting flange thickened wall pipe and flange for spherical tanks. Background Technology

[0002] Spherical tanks, as key equipment for storing various gaseous and liquid media, are widely used in industries such as petroleum, chemical, and energy. During the operation of spherical tanks, the piping structure is a core component for realizing functions such as media inflow / outflow, detection, and maintenance. Large piping (usually referring to piping with a nominal diameter greater than or equal to DN) is particularly vulnerable due to its large diameter, high media pressure, and significant structural discontinuity at its connection with the tank shell, making it prone to stress concentration and a weak point for safe operation.

[0003] In existing technologies, reinforcement of large nozzles in spherical tanks typically employs methods such as reinforcing rings, thick-walled pipes, or integral forgings. Reinforcing rings offer a simple structure and low cost, but the welding quality between the reinforcing ring and the nozzle / tank shell is difficult to guarantee, easily leading to defects such as incomplete penetration and slag inclusions. Under alternating loads or corrosive media, the reinforcing ring is prone to peeling off from the base material, resulting in reinforcement failure. Thick-walled pipe reinforcement increases the load-bearing capacity by increasing the nozzle's wall thickness; however, for large-diameter nozzles, simply increasing the wall thickness leads to a sharp increase in the nozzle's weight, increasing the load on the tank shell and raising manufacturing, transportation, and installation costs. While integral forgings effectively address stress concentration, their large size, complex forging process, long production cycle, and low material utilization rate result in high manufacturing costs.

[0004] In addition, the existing connection between the large nozzle and the flange mostly adopts a separate welding method, that is, the nozzle is first welded to the shell of the spherical tank, and then the flange is welded to the nozzle. This segmented welding structure further aggravates the stress concentration at the connection, and the number of welded joints is large, resulting in a high risk of leakage. Utility Model Content

[0005] The purpose of this utility model is to solve the problem mentioned in the background art that the segmented welding structure further aggravates the stress concentration at the connection, and that the large number of welded joints and high risk of leakage. Therefore, this utility model proposes an integral reinforcement structure for a spherical tank with a large connecting flange, thickened wall pipe and flange.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, this application provides an integral reinforcement structure for a spherical tank with a large flange thickened wall pipe and flange, including a spherical tank body, two symmetrically arranged pipes and flanges, the two pipes being fixedly welded to both ends of the spherical tank body respectively, the pipes being fixedly connected to the outer wall of the spherical tank body through a first reinforcing ring, and a plurality of locking blocks being fixedly connected to the end of the pipe away from the spherical tank body, the locking blocks being fixedly connected to the flange through locking bolts.

[0008] In one possible implementation, the end of the nozzle furthest from the flange extends into the body of the spherical tank.

[0009] In one possible implementation, one end of the pipe extension is fixedly connected to the inner wall of the spherical tank body by a second reinforcing ring.

[0010] In one possible implementation, the second reinforcing ring is fixedly connected to the inner wall of the spherical tank body by a plurality of guide plates.

[0011] In one possible implementation, a plurality of positioning blocks are fixedly connected to one side of the flange, and the connecting pipe is provided with positioning holes corresponding to the positioning blocks.

[0012] In one possible implementation, a sealing ring is slidably fitted onto one end of the locking bolt near the flange, and one side of the sealing ring abuts against the flange.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention effectively improves the connection strength between the pipe and the spherical tank body by setting multiple reinforcement structures. At the same time, the setting of locking bolts improves the connection stability between the flange and the pipe, thereby effectively preventing leakage of the spherical tank.

[0015] 2. In this utility model, the connecting pipe extends into the body of the spherical tank, which can effectively improve the sealing effect between the connecting pipe and the spherical tank body. At the same time, the setting of the second reinforcing ring can improve the connection strength between the spherical tank body and the connecting pipe, and the setting of the sealing ring can ensure the sealing performance at the locking bolt. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall reinforcement structure of the large connecting flange thickened wall pipe and flange for spherical tanks proposed in this utility model;

[0017] Figure 2 This is a side view of the flange in the integral reinforcement structure of the large connecting flange thickened wall pipe and flange for spherical tank proposed in this utility model.

[0018] Figure 3 for Figure 1 The structural diagram at point A in the diagram.

[0019] In the diagram: 1. Tank body, 2. Connecting pipe, 3. Flange, 4. First reinforcing ring, 5. Locking block, 6. Locking bolt, 7. Second reinforcing ring, 8. Sealing ring, 9. Guide plate, 10. Positioning block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 A spherical tank with a large flange thickened wall pipe and flange integral reinforcement structure includes a spherical tank body 1, two symmetrically arranged pipes 2 and flanges 3. The end of the pipe 2 away from the flange 3 extends into the spherical tank body 1. The extended end of the pipe 2 is fixedly connected to the inner wall of the spherical tank body 1 by a second reinforcing ring 7, which can improve the connection strength between the pipe 2 and the spherical tank body 1. The second reinforcing ring 7 is fixedly connected to the inner wall of the spherical tank body 1 by multiple guide plates 9, which can reduce the impact of the medium on the second reinforcing ring 7.

[0022] In this embodiment, two connecting pipes 2 are fixedly welded to both ends of the spherical tank body 1, and the connecting pipes 2 are fixedly connected to the outer wall of the spherical tank body 1 through the first reinforcing ring 4, thereby improving the connection strength between the connecting pipes 2 and the spherical tank body 1. A plurality of locking blocks 5 are fixedly connected to the end of the connecting pipe 2 away from the spherical tank body 1, and the locking blocks 5 are fixedly connected to the flange 3 through locking bolts 6, which facilitates the disassembly and fixing of the flange 3.

[0023] In this embodiment, a plurality of positioning blocks 10 are fixedly connected to one side of the flange 3, and the pipe 2 is provided with positioning holes corresponding to the positioning blocks 10, thereby improving the connection convenience between the flange 3 and the pipe 2. A sealing ring 8 is slidably sleeved on one end of the locking bolt 6 near the flange 3, and one side of the sealing ring 8 abuts against the flange 3 to ensure the sealing effect between the locking bolt 6 and the flange 3.

[0024] In this embodiment, the first reinforcing ring 4 ensures the connection strength between the pipe 2 and the spherical tank body 1, the second reinforcing ring 7 enhances the strength between the pipe 2 and the inner wall of the spherical tank body 1, the locking bolt 6 facilitates the connection between the flange 3 and the pipe 2, and the guide plate 9 reduces the impact of the medium inside the spherical tank body 1 on the pipe 2.

[0025] In this embodiment, the connection strength between the pipe and the spherical tank body can be effectively improved by setting multiple reinforcement structures. At the same time, the setting of locking bolts can improve the connection stability between the flange and the pipe, thereby effectively preventing leakage of the spherical tank.

[0026] 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 reinforced structure for a spherical tank with a large flange and thickened wall, comprising a spherical tank body (1), two symmetrically arranged nozzles (2) and flanges (3), characterized in that: The two connecting pipes (2) are fixedly welded to both ends of the spherical tank body (1). The connecting pipes (2) are fixedly connected to the outer wall of the spherical tank body (1) by the first reinforcing ring (4). A plurality of locking blocks (5) are fixedly connected to the end of the connecting pipes (2) away from the spherical tank body (1). The locking blocks (5) are fixedly connected to the flange (3) by locking bolts (6).

2. The integral reinforcement structure of the large flange thickened wall pipe and flange for spherical tanks according to claim 1, characterized in that: The end of the connecting pipe (2) away from the flange (3) extends into the spherical tank body (1).

3. The integral reinforcement structure of the large connecting flange thickened wall pipe and flange for spherical tanks according to claim 2, characterized in that: One end of the connecting pipe (2) is fixedly connected to the inner wall of the spherical tank body (1) by a second reinforcing ring (7).

4. The integral reinforcement structure of the large connecting flange thickened wall pipe and flange for spherical tanks according to claim 3, characterized in that: The second reinforcing ring (7) is fixedly connected to the inner wall of the spherical tank body (1) through multiple guide plates (9).

5. The integral reinforcement structure of the large connecting flange thickened wall pipe and flange for spherical tanks according to claim 1, characterized in that: A plurality of positioning blocks (10) are fixedly connected to one side of the flange (3), and the pipe (2) is provided with positioning holes corresponding to the positioning blocks (10).

6. The integral reinforcement structure of the large connecting flange thickened wall pipe and flange for spherical tanks according to claim 1, characterized in that: The locking bolt (6) has a sealing ring (8) slidably fitted on one end near the flange (3), and one side of the sealing ring (8) abuts against the flange (3).

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