High-pressure-resistant stainless steel elbow

Abstract

The utility model discloses a high-pressure-resistant stainless steel elbow, which relates to the technical field of stainless steel pipes, and comprises a large elbow, straight pipe transition parts are respectively arranged at two ends of the large elbow, and a flange joint is arranged at one end, far away from the large elbow, of each straight pipe transition part. Buffering pipe cores are embedded in the inner walls of the straight pipe transition part and the flange connector, the buffering pipe cores are connected to the two ends of the large elbow, the buffering pipe cores are provided with honeycomb holes, reducing pipe walls with the inner diameters gradually reduced and flow guide faces, the pipe inner diameter of the large elbow is larger than that of the buffering pipe cores, bosses are arranged at the two ends of the large elbow, and the bosses are connected with the buffering pipe cores. Reinforcing ribs connected along the outer wall of the large elbow are arranged between the end faces of the bosses at the two ends. According to the utility model, by arranging the large bending system, the buffering and shunting structure and the reinforcing structure, the impact pressure on the elbow at the turning part of the pipeline system is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a high-pressure resistant stainless steel elbow. Background Art

[0002] When the valve or pump in the pipeline system is switched, the inertia of the water flow will cause impact force on the pipe wall. This impact will cause water hammer phenomenon at the bend of the pipeline system, which will cause pressure fluctuation inside the pipeline. This fluctuation will cause damage to the pipeline itself, especially in high-pressure pipeline systems. For this reason, we provide a high-pressure resistant stainless steel elbow. Utility Model Content

[0003] The utility model aims to provide a high-pressure resistant stainless steel elbow to reduce the impact pressure on the elbow at the turning point of the pipeline system.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure resistant stainless steel elbow, comprising a large elbow, wherein straight tube transition parts are respectively provided at both ends of the large elbow, a flange joint is provided at one end of the straight tube transition part away from the large elbow, a buffer tube core is embedded in the inner walls of the straight tube transition part and the flange joint, and the buffer tube core is connected to the two ends of the large elbow, the buffer tube core is provided with honeycomb holes and a reducing tube wall with a gradually decreasing inner diameter and a guide surface, the inner diameter of the large elbow is larger than the inner diameter of the buffer tube core, bosses are provided at both ends of the large elbow, and reinforcing ribs connected along the outer wall of the large elbow are provided between the end faces of the bosses at both ends.

[0005] Preferably, the buffer tube core is integrated with the straight tube transition portion and the flange joint to form an integrated structure.

[0006] Preferably, the inner wall of the buffer tube core is a smooth wall surface, and the tube cavity of the variable diameter tube wall is funnel-shaped.

[0007] Preferably, the honeycomb holes are connected to the expanded end of the funnel-shaped cavity of the variable diameter tube wall, and the guide surface is connected to the narrow end of the funnel-shaped cavity of the variable diameter tube wall.

[0008] Preferably, the diversion holes of the honeycomb holes are straight holes.

[0009] Preferably, the reinforcing rib is extended along the length direction of the large elbow.

[0010] The utility model has the following beneficial effects:

[0011] The utility model provides a large bend system, a buffer diversion structure and a reinforcement structure. The large bend has a large rounded arc, which makes the bend of the water pipe smoother. The flow channel of the large bend system changes gently, and the impact of the water flow on the curved surface at the bend is buffered. The buffer diversion structure disperses the water flow through honeycomb holes. The buffer diversion structure alleviates the impact force of the water flow vertically hitting the pipe wall through the variable diameter pipe wall, thereby reducing the impact of the high-pressure fluid on the inner wall of the large bend. The reinforcement structure can reinforce the elbow by arranging reinforcing ribs on the large elbow, thereby increasing the service life of the elbow. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a three-dimensional diagram of the utility model.

[0014] In the figure: 1. large elbow; 11. straight pipe transition part; 12. flange joint; 13. boss; 2. buffer tube core; 21. honeycomb hole; 22. variable diameter tube wall; 23. guide surface; 3. reinforcing ribs. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] like Figure 1-2 As shown, the utility model provides a technical solution: a high-pressure resistant stainless steel elbow, including a large elbow 1, the inner wall thickness of the large elbow 1 is thickened, the bending curvature of the large elbow 1 is large and smooth, the angle change of the large elbow 1 is gentle, and straight pipe transition parts 11 are respectively provided at both ends of the large elbow 1, and a flange joint 12 is provided at one end of the straight pipe transition part 11 away from the large elbow 1.

[0017] A buffer tube core 2 is embedded in the inner walls of the straight tube transition portion 11 and the flange joint 12. The buffer tube core 2 is made of metal. The buffer tube core 2, the straight tube transition portion 11 and the flange joint 12 form an integrated structure. The buffer tube core 2 is connected to both ends of the large elbow 1. The buffer tube core 2 is provided with a honeycomb hole 21, a reducer tube wall 22 with a gradually decreasing inner diameter, and a guide surface 23. The inner wall of the buffer tube core 2 is a smooth wall surface, and the flow is guided to the large elbow 1 through the guide surface 23. The lumen of the reducer tube wall 22 is funnel-shaped, the wall of the honeycomb hole 21 is narrow, and the diversion hole of the honeycomb hole 21 is a straight hole. The honeycomb hole 21 is connected to the expanded end of the funnel-shaped lumen of the reducer tube wall 22, and the guide surface 23 is connected to the narrow end of the funnel-shaped lumen of the reducer tube wall 22.

[0018] The inner diameter of the large elbow 1 is larger than the inner diameter of the buffer tube core 2. The tube diameter increases toward the large elbow 1, and the water flow pressure decreases. Bosses 13 are provided at both ends of the large elbow 1, and reinforcing ribs 3 connected along the outer wall of the large elbow 1 are provided between the end faces of the bosses 13 at both ends. The reinforcing ribs 3 are extended along the length direction of the large elbow 1.

[0019] When in use, the big elbow 1 of the big elbow system has a large rounded arc, which makes the water pipe system smoother at the bend, and the flow path changes at the bend of the water pipe system are relatively gentle. The impact of water flow at the bend is buffered along the curved surface, and the water flow is dispersed through the honeycomb holes 21. The impact force of the water flow vertically hitting the pipe wall is alleviated by the variable diameter pipe wall 22, thereby reducing the impact of the high-pressure fluid on the inner wall of the big elbow 1. By arranging reinforcing ribs 3 on the big elbow 1, the elbow can be reinforced and the service life of the elbow can be increased.

[0020] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high pressure resistant stainless steel elbow, characterized in that: The invention comprises a large elbow (1), wherein both ends of the large elbow (1) are respectively provided with a straight tube transition portion (11), a flange joint (12) is provided at one end of the straight tube transition portion (11) away from the large elbow (1), a buffer tube core (2) is embedded in the inner walls of the straight tube transition portion (11) and the flange joint (12), the buffer tube core (2) is connected to both ends of the large elbow (1), the buffer tube core (2) is provided with a honeycomb hole (21) and a variable diameter tube wall (22) with a gradually decreasing inner diameter and a guide surface (23), the inner diameter of the large elbow (1) is larger than the inner diameter of the buffer tube core (2), bosses (13) are provided at both ends of the large elbow (1), and reinforcing ribs (3) connected along the outer wall of the large elbow (1) are provided between the end surfaces of the bosses (13) at both ends.

2. The high pressure resistant stainless steel elbow according to claim 1, characterized in that: The buffer tube core (2) is integrated with the straight tube transition portion (11) and the flange joint (12) to form an integrated structure.

3. The high pressure resistant stainless steel elbow according to claim 1, characterized in that: The inner wall of the buffer tube core (2) is a smooth wall surface, and the lumen of the variable diameter tube wall (22) is funnel-shaped.

4. The high pressure resistant stainless steel elbow according to claim 3, characterized in that: The honeycomb hole (21) is connected to the expanded end of the funnel-shaped tube cavity of the variable diameter tube wall (22), and the guide surface (23) is connected to the narrow end of the funnel-shaped tube cavity of the variable diameter tube wall (22).

5. The high pressure resistant stainless steel elbow according to claim 1, characterized in that: The diversion holes of the honeycomb holes (21) are straight holes.

6. The high pressure resistant stainless steel elbow according to claim 1, characterized in that: The reinforcing rib (3) is arranged to extend along the length direction of the large elbow (1).

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