High strength industrial welded steel pipe

Abstract

The utility model discloses a high -strength industrial welded steel pipe, including steel pipe body, steel pipe body is from inside and outside respectively equipped with internal steel pipe layer, third inner ring, second inner ring, first inner ring and shell, be equipped with a plurality of stiffener and spiral stiffener between first inner ring and shell, be equipped with left -hand thread stiffener and right -hand thread stiffener between second inner ring and third inner ring, be equipped with wedge fixed block between third inner ring internal steel pipe layer, the utility model discloses through multilayer structure superposition, cooperate the reinforcing part between each layer, the overall structural strength of steel pipe has been improved significantly, can better cope with various external force action.

Description

Technical Field

[0001] This utility model relates to a steel pipe device, specifically a high-strength industrial welded steel pipe, belonging to the technical field of high-strength welded steel pipes. Background Technology

[0002] High-strength industrial welded steel pipes refer to tubular steel products manufactured using welding processes, possessing high mechanical properties (such as strength, toughness, and fatigue resistance), and primarily used in industrial applications.

[0003] A search revealed Chinese patent CN220268678U, which discloses a high-strength steel pipe. The pipe has several reinforcing ribs on its outer wall, initially increasing its strength. An insulation layer is installed inside the pipe, with a first and second reinforcing layer on its inner wall. This double-layered reinforcement structure maximizes the pipe's strength. Furthermore, several reinforcing ribs are placed between the first and second reinforcing layers, further enhancing overall strength. This prevents deformation even under compressive and torsional forces, improving the pipe's usability. However, in this patented product, the reinforcing ribs are only longitudinally arranged, resulting in weak resistance to radial compression perpendicular to the axis (such as external pressure or lateral impact). Under prolonged radial force, the pipe is prone to localized deformation at the circumferential gaps without reinforcing ribs, especially in the pipe wall area between the ribs, where stress concentration may cause depressions or bulges, affecting overall structural stability. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength industrial welded steel pipe to solve the above-mentioned problems.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a high-strength industrial welded steel pipe, comprising a steel pipe body, wherein the steel pipe body is provided with an inner steel pipe layer, a third inner ring, a second inner ring, a first inner ring and an outer shell from the inside out, wherein a plurality of reinforcing ribs and spiral reinforcing ribs are provided between the first inner ring and the outer shell, wherein left-hand reinforcing ribs and right-hand reinforcing ribs are provided between the second inner ring and the third inner ring, and a wedge-shaped fixing block is provided between the inner steel pipe layers of the third inner ring.

[0006] Preferably, the cross-section of the wedge-shaped fixing block is trapezoidal.

[0007] Preferably, the plurality of reinforcing ribs are arranged in a vertical ring on the outside of the first inner ring.

[0008] Preferably, a concrete layer is poured between the inner steel pipe layer, the third inner ring, the second inner ring, the first inner ring, and the outer shell.

[0009] Preferably, the pitch of the spiral reinforcing rib is smaller than the pitch of the left-hand reinforcing rib and the right-hand reinforcing rib.

[0010] Preferably, the pitch of the left-hand reinforcing rib and the right-hand reinforcing rib is the same, and the left-hand reinforcing rib and the right-hand reinforcing rib are arranged alternately.

[0011] The beneficial effects of this utility model are as follows: In the aforementioned patented products, the reinforcing ribs are only arranged longitudinally, resulting in weak resistance to radial compression perpendicular to the axis (such as external pressure or lateral impact). When subjected to radial force for a long time, the steel pipe body is prone to local deformation at the circumferential gaps without reinforcing ribs, especially in the pipe wall area between reinforcing ribs, where stress concentration may cause dents or bulges, affecting the overall structural stability. This utility model, through multi-layered structure and reinforcing components between each layer, significantly improves the overall structural strength of the steel pipe, enabling it to better cope with various external forces. Attached Figure Description

[0012] Figure 1 This is a three-dimensional view of the overall structure of a high-strength industrial welded steel pipe proposed in this utility model;

[0013] Figure 2 This is a three-dimensional view of the overall structure of a high-strength industrial welded steel pipe proposed in this utility model;

[0014] Figure 3 This is a three-dimensional view of the overall structure of a high-strength industrial welded steel pipe proposed in this utility model.

[0015] In the diagram: 1. Steel pipe body; 2. Outer shell; 201. First inner ring; 202. Reinforcing rib; 203. Spiral reinforcing rib; 204. Second inner ring; 205. Left-handed reinforcing rib; 206. Right-handed reinforcing rib; 207. Third inner ring; 208. Internal steel pipe layer; 209. Wedge-shaped fixing block; 210. Concrete layer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3As shown, a high-strength industrial welded steel pipe includes a steel pipe body 1. The steel pipe body 1 is provided with an inner steel pipe layer 208, a third inner ring 207, a second inner ring 204, a first inner ring 201 and an outer shell 2 from the inside out. A plurality of reinforcing ribs 202 and spiral reinforcing ribs 203 are provided between the first inner ring 201 and the outer shell 2. A left-handed reinforcing rib 205 and a right-handed reinforcing rib 206 are provided between the second inner ring 204 and the third inner ring 207. A wedge-shaped fixing block 209 is provided between the inner steel pipe layers 208 of the third inner ring 207.

[0018] The wedge-shaped fixing block 209 has a trapezoidal cross-section, and multiple reinforcing ribs 202 are arranged vertically in a ring outside the first inner ring 201.

[0019] According to the above embodiments, it should be noted that during the production of the high-strength industrial steel pipe body 1, structural components to improve strength are added inside.

[0020] The main body of the steel pipe 1 is provided with an outer shell 2, a first inner ring 201, a second inner ring 204, a third inner ring 207 and an inner steel pipe layer 208 from the outside to the inside.

[0021] Between the outer shell 2 and the first inner ring 201, multiple equidistant reinforcing ribs 202 are provided to improve strength. The reinforcing ribs 202 are positioned in the same direction as the steel pipe body 1 and are arranged in a vertical ring between the first inner ring 201 and the outer shell 2. A spiral reinforcing rib 203 is also provided in front of the multiple reinforcing ribs 202, so that the reinforcing ribs 202 and the spiral reinforcing rib 203 form a grid, thereby improving the rigidity of the steel pipe body 1.

[0022] Between the first inner ring 202 and the second inner ring 204, there are left-handed reinforcing ribs 205 and right-handed reinforcing ribs 206 that are intertwined and welded at the connection point. The left-handed reinforcing ribs 205 and right-handed reinforcing ribs 206 are arranged in a cross-shaped diamond grid. This diamond grid, together with the grid connected to the reinforcing ribs 202 and spiral reinforcing ribs 203, forms two sets of internal strong supports, which can cope with lateral and longitudinal stresses and improve the overall strength of the steel pipe body 1.

[0023] Multiple wedge-shaped fixing blocks 209 are provided between the third inner ring 207 and the inner steel pipe layer 208. The cross-section of the wedge-shaped fixing block 206 is trapezoidal, which improves the tightness of the connection between the inner steel pipe layer 208 and the third inner ring 207.

[0024] Multi-layered design enhances the strength of industrial steel pipes.

[0025] Please see Figure 1-3 As shown, a high-strength industrial welded steel pipe includes an inner steel pipe layer 208, a third inner ring 207, a second inner ring 204, a first inner ring 201, and a concrete layer 210 poured between the outer shell 2.

[0026] The pitch of the spiral reinforcing rib 203 is smaller than the pitch of the left-hand reinforcing rib 205 and the right-hand reinforcing rib 206. The pitches of the left-hand reinforcing rib 205 and the right-hand reinforcing rib 206 are the same, and the left-hand reinforcing rib 205 and the right-hand reinforcing rib 206 are staggered.

[0027] According to the above embodiments, it should be noted that the concrete layer 210 can be tightly integrated with the structure of each layer, and with the help of the good compressive strength of the concrete itself, the overall structural stability and load-bearing capacity of the steel pipe are further improved.

[0028] Multiple reinforcing ribs 202 and helical reinforcing ribs 203 are provided between the first inner ring 201 and the outer shell 2. The reinforcing ribs 202 are arranged in a vertical ring on the outside of the first inner ring 201, which can initially block and disperse radial forces. The helical reinforcing ribs 203 are wrapped between the reinforcing ribs 202, forming a grid structure together with the reinforcing ribs 202, which can more evenly transmit external radial and axial forces to the entire structure. Moreover, the pitch of the helical reinforcing ribs 203 is smaller than the pitch of the left-hand reinforcing ribs 205 and the right-hand reinforcing ribs 206. The smaller pitch allows the helical reinforcing ribs 203 to have more support points per unit length, resulting in denser structural support between the first inner ring 201 and the outer shell 2, and enhancing the deformation resistance of this area.

[0029] Between the second inner ring 204 and the third inner ring 207, there are left-handed reinforcing ribs 205 and right-handed reinforcing ribs 206. The left-handed reinforcing ribs 205 and right-handed reinforcing ribs 206 have the same pitch and are staggered to form a cross-shaped diamond mesh structure. This cross structure can distribute the force from multiple directions. When subjected to lateral or longitudinal stress, the force can be transferred to a larger area through the intersection points, effectively reducing local stress concentration.

[0030] A wedge-shaped fixing block 209 is provided between the third inner ring 207 and the inner steel pipe layer 208. The cross-section of the wedge-shaped fixing block 209 is trapezoidal. The trapezoidal structure allows it to be tightly engaged between the third inner ring 207 and the inner steel pipe layer 208, increasing the firmness of the connection between the two, preventing relative slippage, and also distributing some of the internal force, thus improving the stability of the overall structure.

[0031] In summary, the usage process of this device is as follows: during the production of the high-strength industrial steel pipe body 1, structural components that enhance strength are added inside.

[0032] The main body of the steel pipe 1 is provided with an outer shell 2, a first inner ring 201, a second inner ring 204, a third inner ring 207 and an inner steel pipe layer 208 from the outside to the inside.

[0033] Between the outer shell 2 and the first inner ring 201, multiple equidistant reinforcing ribs 202 are provided to improve strength. The reinforcing ribs 202 are positioned in the same direction as the steel pipe body 1 and are arranged in a vertical ring between the first inner ring 201 and the outer shell 2. A spiral reinforcing rib 203 is also provided in front of the multiple reinforcing ribs 202, so that the reinforcing ribs 202 and the spiral reinforcing rib 203 form a grid, thereby improving the rigidity of the steel pipe body 1.

[0034] Between the first inner ring 202 and the second inner ring 204, there are left-handed reinforcing ribs 205 and right-handed reinforcing ribs 206 that are intertwined and welded at the connection point. The left-handed reinforcing ribs 205 and right-handed reinforcing ribs 206 are arranged in a cross-shaped diamond grid. This diamond grid, together with the grid connected to the reinforcing ribs 202 and spiral reinforcing ribs 203, forms two sets of internal strong supports, which can cope with lateral and longitudinal stresses and improve the overall strength of the steel pipe body 1.

[0035] Multiple wedge-shaped fixing blocks 209 are provided between the third inner ring 207 and the inner steel pipe layer 208. The cross-section of the wedge-shaped fixing block 206 is trapezoidal, which improves the tightness of the connection between the inner steel pipe layer 208 and the third inner ring 207.

[0036] Multi-layered design enhances the strength of industrial steel pipes.

[0037] The concrete layer 210 can be tightly bonded to the structure of each layer, and with the help of the good compressive strength of the concrete itself, it can further improve the overall structural stability and load-bearing capacity of the steel pipe.

[0038] Multiple reinforcing ribs 202 and helical reinforcing ribs 203 are provided between the first inner ring 201 and the outer shell 2. The reinforcing ribs 202 are arranged in a vertical ring on the outside of the first inner ring 201, which can initially block and disperse radial forces. The helical reinforcing ribs 203 are wrapped between the reinforcing ribs 202, forming a grid structure together with the reinforcing ribs 202, which can more evenly transmit external radial and axial forces to the entire structure. Moreover, the pitch of the helical reinforcing ribs 203 is smaller than the pitch of the left-hand reinforcing ribs 205 and the right-hand reinforcing ribs 206. The smaller pitch allows the helical reinforcing ribs 203 to have more support points per unit length, resulting in denser structural support between the first inner ring 201 and the outer shell 2, and enhancing the deformation resistance of this area.

[0039] Between the second inner ring 204 and the third inner ring 207, there are left-handed reinforcing ribs 205 and right-handed reinforcing ribs 206. The left-handed reinforcing ribs 205 and right-handed reinforcing ribs 206 have the same pitch and are staggered to form a cross-shaped diamond mesh structure. This cross structure can distribute the force from multiple directions. When subjected to lateral or longitudinal stress, the force can be transferred to a larger area through the intersection points, effectively reducing local stress concentration.

[0040] A wedge-shaped fixing block 209 is provided between the third inner ring 207 and the inner steel pipe layer 208. The cross-section of the wedge-shaped fixing block 209 is trapezoidal. The trapezoidal structure allows it to be tightly engaged between the third inner ring 207 and the inner steel pipe layer 208, increasing the firmness of the connection between the two, preventing relative slippage, and also distributing some of the internal force, thus improving the stability of the overall structure.

Claims

1. A high-strength industrial welded steel pipe, comprising a steel pipe body (1), characterized in that: The steel pipe body (1) is provided with an inner steel pipe layer (208), a third inner ring (207), a second inner ring (204), a first inner ring (201) and an outer shell (2) from the inside out. Multiple reinforcing ribs (202) and spiral reinforcing ribs (203) are provided between the first inner ring (201) and the outer shell (2). Left-handed reinforcing ribs (205) and right-handed reinforcing ribs (206) are provided between the second inner ring (204) and the third inner ring (207). Wedge-shaped fixing blocks (209) are provided between the inner steel pipe layers (208) of the third inner ring (207).

2. The high-strength industrial welded steel pipe according to claim 1, characterized in that: The cross-section of the wedge-shaped fixing block (209) is trapezoidal.

3. The high-strength industrial welded steel pipe according to claim 1, characterized in that: Multiple reinforcing ribs (202) are arranged in a vertical ring on the outside of the first inner ring (201).

4. The high-strength industrial welded steel pipe according to claim 1, characterized in that: A concrete layer (210) is poured between the inner steel pipe layer (208), the third inner ring (207), the second inner ring (204), the first inner ring (201), and the outer shell (2).

5. A high-strength industrial welded steel pipe according to claim 4, characterized in that: The pitch of the spiral reinforcing rib (203) is smaller than the pitch of the left-hand reinforcing rib (205) and the right-hand reinforcing rib (206).

6. A high-strength industrial welded steel pipe according to claim 5, characterized in that: The left-hand reinforcing rib (205) and the right-hand reinforcing rib (206) have the same pitch, and the left-hand reinforcing rib (205) and the right-hand reinforcing rib (206) are staggered.

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