Heat-resistant stainless steel seamless steel pipe

Abstract

The utility model relates to the technical field of seamless steel tubes, in particular to a heat-resistant stainless steel seamless steel tube which comprises a steel tube, a temperature-resistant layer is coated on the outer wall of the steel tube, a graphene layer is coated on the inner wall of the steel tube, a ring sleeve is sleeved on the steel tube, a heat dissipation structure for dissipating heat of the steel tube is arranged on the ring sleeve, and the steel tube and the ring sleeve are concentrically arranged. Positioning plates extending to the steel pipe are installed on the ring sleeve and vertically arranged at the two ends of the steel pipe. The inner wall and the outer wall of the steel pipe are protected through the temperature-resistant layer and the graphene layer respectively, and the evenly-distributed ring frames are arranged in the ring sleeve, so that impact on the outer wall of the steel pipe is reduced; the four arc-shaped heat-conducting fins are mounted on the steel pipe, so that the outer wall of the steel pipe can be surrounded by the four arc-shaped heat-conducting fins, heat energy can be dispersed through the uniformly distributed cooling fins, the heat energy generated during operation of the steel pipe can flow quickly, and the service life of the steel pipe is effectively prolonged.

Description

Technical Field

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

[0002] Seamless steel pipes have a hollow cross-section and are widely used as pipes for transporting fluids, such as oil, natural gas, coal gas, water and certain solid materials.

[0003] As a pipeline for conveying fluids, seamless steel pipes have relatively wide and thick specifications. However, due to the particularity of the fluid, seamless steel pipes are subjected to continuous impacts of a large amount of thermal energy, and there are no heat dissipation components on the seamless steel pipes. As a result, the heat energy in the seamless steel pipes cannot be quickly discharged during transportation, resulting in a large amount of heat energy accumulation and expansion of the pipe wall, further affecting the service life of the seamless steel pipes. There are no protective measures on the seamless steel pipes, so the outer wall of the seamless steel pipes will be affected by impacts, which will affect the transportation of the fluid and may cause leakage during transportation. Utility Model Content

[0004] The utility model aims to solve the problem of poor heat dissipation of seamless steel pipes in the prior art and proposes a heat-resistant stainless steel seamless pipe.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A heat-resistant stainless steel seamless pipe comprises a steel pipe, the outer wall of the steel pipe is coated with a temperature-resistant layer, the inner wall of the steel pipe is coated with a graphene layer, the steel pipe is sleeved with a ring sleeve, and the ring sleeve is provided with a heat dissipation structure for dissipating heat from the steel pipe.

[0007] Preferably, the steel pipe and the ring sleeve are arranged concentrically, and a positioning plate extending to the steel pipe is installed on the ring sleeve. The positioning plates are vertically arranged at both ends of the steel pipe, and a sealing strip that fits the steel pipe is provided on the positioning plates.

[0008] Preferably, a locking bolt connected to the steel pipe and the ring sleeve is threadedly connected to the positioning plate, and evenly distributed heat dissipation holes are opened on the positioning plate.

[0009] Preferably, the heat dissipation structure includes a heat conducting plate extending to the steel pipe, and the heat conducting plate is provided with evenly distributed heat dissipating fins for dissipating heat from the steel pipe, the heat dissipating fin is integrally connected to a ring frame, and the ring frame is integrally connected to circumferentially distributed fixing blocks, and a spring is welded between the ring sleeve and the fixing block.

[0010] Preferably, the heat conducting plate is an arc-shaped structure adapted to the outer wall of the steel pipe, and the number of the heat conducting plates is four.

[0011] Preferably, the ring frame is an annular structure, and the ring frame is linearly and horizontally distributed between the steel pipe and the ring sleeve. The outer wall of the ring sleeve is coated with an anti-corrosion layer, and the inner wall of the ring sleeve is coated with a heat insulation layer.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The utility model protects the inner and outer walls of the steel pipe respectively through the temperature-resistant layer and the graphene layer, protects the inner and outer walls of the ring sleeve respectively through the anti-corrosion layer and the heat-insulating layer, and reduces the impact on the outer wall of the steel pipe by arranging evenly distributed ring frames in the ring sleeve.

[0014] 2. The utility model installs four heat conducting plates on the steel pipe so that the four arc-shaped heat conducting plates can surround the outer wall of the steel pipe, and then disperses the heat energy through the evenly distributed heat sinks, so that the heat energy generated by the steel pipe during operation can flow quickly, effectively improving the service life of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a heat-resistant stainless steel seamless pipe proposed in the utility model;

[0016] Figure 2 This is a cross-sectional view of a heat-resistant stainless steel seamless pipe proposed in the utility model;

[0017] Figure 3 This is a cross-sectional view of a heat-resistant stainless steel seamless pipe ring proposed in the utility model;

[0018] Figure 4 This is a side sectional view of a heat-resistant stainless steel seamless pipe proposed by the utility model.

[0019] In the figure: 1. Steel pipe; 2. Graphene layer; 3. Ring sleeve; 4. Heat conducting plate; 5. Heat sink; 6. Ring frame; 7. Fixing block; 8. Spring; 9. Positioning plate; 10. Heat dissipation hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-Figure 4A heat-resistant stainless steel seamless pipe includes a steel pipe 1. The outer wall of the steel pipe 1 is coated with a temperature-resistant layer, specifically refractory cement, and the inner wall of the steel pipe 1 is coated with a graphene layer 2. By coating the graphene layer 2 on the inner wall of the steel pipe 1, the stable lattice structure of the graphene layer 2 makes the graphene layer 2 have excellent thermal conductivity. The mutual cooperation between the refractory cement and the graphene layer 2 can fully transfer heat energy to the outer wall of the steel pipe 1.

[0022] The steel pipe 1 is covered with a ring sleeve 3, and the ring sleeve 3 is provided with a heat dissipation structure for dissipating heat from the steel pipe 1;

[0023] The steel pipe 1 and the ring sleeve 3 are concentrically arranged, and a positioning plate 9 extending to the steel pipe 1 is installed on the ring sleeve 3. The positioning plates 9 are vertically arranged at both ends of the steel pipe 1, and the positioning plates 9 are provided with sealing strips that fit the steel pipe 1. The positioning plates 9 are threadedly connected with locking bolts connected to the steel pipe 1 and the ring sleeve 3, and the positioning plates 9 are provided with evenly distributed heat dissipation holes 10;

[0024] The ring sleeve 3 is concentrically mounted on the steel pipe 1, so that the outer wall of the steel pipe 1 and the inner wall of the ring sleeve 3 can form a cavity, and the steel pipe 1 and the ring sleeve 3 are connected by the positioning plate 9. By opening a heat dissipation hole 10 on the positioning plate 9, the external air flow enters the cavity through the heat dissipation hole 10 to transport heat energy;

[0025] The heat dissipation structure includes a heat conducting sheet 4 extending to the steel pipe 1, and the heat conducting sheet 4 is provided with evenly distributed heat dissipating fins 5 for dissipating heat from the steel pipe 1. The heat dissipating fins 5 are integrally connected to a ring frame 6, and the ring frame 6 is integrally connected to circumferentially distributed fixing blocks 7. A spring 8 is welded between the ring sleeve 3 and the fixing blocks 7.

[0026] The heat conducting sheet 4 is an arc-shaped structure adapted to the outer wall of the steel pipe 1, and there are four heat conducting sheets 4. By setting the heat conducting sheet 4 to an arc-shaped structure adapted to the outer wall of the steel pipe 1, the four heat conducting sheets 4 can fully surround the outer wall of the steel pipe 1, thereby increasing the contact degree between the heat conducting sheet 4 and the steel pipe 1, and preventing the steel pipe 1 from deforming during transportation. After the heat conducting sheet 4 contacts the steel pipe 1, it can quickly absorb the heat energy in the steel pipe 1, thereby increasing the speed of heat energy transfer. The ring frame 6 is an annular structure, and the ring frame 6 is linearly and horizontally distributed between the steel pipe 1 and the ring sleeve 3. By evenly arranging the ring frame 6 in the gap between the ring sleeve 3 and the steel pipe 1, the ring sleeve 3 can be assembled on the steel pipe 1 to reduce the direct impact of the outside on the steel pipe 1.

[0027] An anti-corrosion layer is applied on the outer wall of the ring sleeve 3, and an insulation layer is applied on the inner wall of the ring sleeve 3. The anti-corrosion layer can be specifically phenolic resin paint, and the insulation layer is specifically a silicate layer. The anti-corrosion layer gives the ring sleeve 3 a certain anti-corrosion ability, which not only improves the service life of the ring sleeve 3, but also realizes anti-collision protection for the steel pipe 1.

[0028] The functional principle of this utility model can be explained through the following operation modes:

[0029] The graphene layer 2 is coated on the inner wall of the steel pipe 1, and the heat-resistant layer is coated on the outer wall of the steel pipe 1;

[0030] Press the ring sleeve 3 so that the ring sleeve 3 drives the ring frame 6, the heat sink 5, and the heat conducting sheet 4 to move synchronously, so that the four heat conducting sheets 4 can contact the outer wall of the steel pipe 1;

[0031] Install the positioning plate 9 on the steel pipe 1 and the ring sleeve 3, so that the positioning plate 9 drives the sealing strip to extend onto the steel pipe 1, and use the locking bolt to connect the positioning plate 9 to the ring sleeve 3, and the positioning plate 9 to the steel pipe 1;

[0032] The heat energy generated by the steel pipe 1 during transportation is absorbed by the heat conducting sheet 4, and the heat energy of the heat conducting sheet 4 is transferred to the heat sink 5 for dispersion. The outside air flows into the cavity between the ring sleeve 3 and the steel pipe 1 through the heat dissipation holes 10, thereby achieving heat dissipation for the steel pipe 1;

[0033] When the ring sleeve 3 is hit, the spring 8 is stressed, causing the ring sleeve 3 to resist the fixing block 7 through the spring 8, thereby protecting the steel pipe 1.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat-resistant stainless steel seamless pipe, comprising a steel pipe (1), characterized in that: The outer wall of the steel pipe (1) is coated with a temperature-resistant layer, and the inner wall of the steel pipe (1) is coated with a graphene layer (2). The steel pipe (1) is provided with a ring sleeve (3), and the ring sleeve (3) is provided with a heat dissipation structure for dissipating heat from the steel pipe (1).

2. The heat-resistant stainless steel seamless pipe according to claim 1, characterized in that: The steel pipe (1) and the ring sleeve (3) are arranged concentrically, and a positioning plate (9) extending to the steel pipe (1) is installed on the ring sleeve (3). The positioning plate (9) is vertically arranged at both ends of the steel pipe (1), and a sealing strip that fits the steel pipe (1) is provided on the positioning plate (9).

3. The heat-resistant stainless steel seamless pipe according to claim 2, characterized in that: The positioning plate (9) is threadedly connected to a locking bolt connected to the steel pipe (1) and the ring sleeve (3), and the positioning plate (9) is provided with evenly distributed heat dissipation holes (10).

4. The heat-resistant stainless steel seamless pipe according to claim 1, characterized in that: The heat dissipation structure comprises a heat conducting sheet (4) extending onto the steel pipe (1), and the heat conducting sheet (4) is provided with evenly distributed heat dissipating sheets (5) for dissipating heat from the steel pipe (1), the heat dissipating sheets (5) are integrally connected to a ring frame (6), and the ring frame (6) is integrally connected to circumferentially distributed fixing blocks (7), and a spring (8) is welded between the ring sleeve (3) and the fixing block (7).

5. The heat-resistant stainless steel seamless pipe according to claim 4, characterized in that: The heat conducting sheet (4) is an arc-shaped structure adapted to the outer wall of the steel pipe (1), and the number of the heat conducting sheets (4) is four.

6. The heat-resistant stainless steel seamless pipe according to claim 4, characterized in that: The ring frame (6) is an annular structure, and the ring frame (6) is linearly and horizontally distributed between the steel pipe (1) and the ring sleeve (3). The outer wall of the ring sleeve (3) is coated with an anti-corrosion layer, and the inner wall of the ring sleeve (3) is coated with a heat insulation layer.

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