Pipeline structure

Abstract

The utility model provides a pipeline structure. The pipeline structure comprises a pipe body; a heat-resistant layer is arranged on the inner wall of the pipe body, and the shape of the heat-resistant layer is a tubular body of which the outer diameter is equal to the inner diameter of the pipe body and the axial length is equal to the axial length of the pipe body; a wear-resistant layer is arranged on the inner wall of the heat-resistant layer, and the wear-resistant layer is in the shape of a tubular body with the outer diameter equal to the inner diameter of the heat-resistant layer and the axial length equal to the axial length of the pipe body. The pipeline structure has high abrasion resistance and high temperature resistance, and the safety of the pipeline structure in actual work is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid transportation, in particular to a pipeline structure. Background Art

[0002] The usual gas-solid bidirectional flow fluid transportation is usually carried out at low temperature and low pressure or low temperature and high pressure. The gas-solid fluid transportation at high temperature and high pressure is rarely involved in the market. Especially when gas-solid fluid is transported in pipelines at high temperature and high pressure, it is easy to cause abrasion to the pipeline. Long-term operation with defects will cause pipeline overheating, damage, and even safety accidents. Utility Model Content

[0003] The utility model aims to provide a pipeline structure, which has higher abrasion resistance and high temperature resistance, thereby ensuring the safety in actual work.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A pipeline structure, comprising: a pipe body;

[0006] A heat-resistant layer is provided on the inner wall of the tube body, and the shape of the heat-resistant layer is a tubular body whose outer diameter is equal to the inner diameter of the tube body and whose axial length is the same as the axial length of the tube body;

[0007] A wear-resistant layer is arranged on the inner wall of the heat-resistant layer. The wear-resistant layer is in the shape of a tubular body whose outer diameter is equal to the inner diameter of the heat-resistant layer and whose axial length is the same as the axial length of the tube body.

[0008] Preferably, the heat-resistant layer is made of low-iron heat-insulating castable material and is fixed on the inner wall of the tube body by casting.

[0009] Preferably, the wear-resistant layer is made of corundum self-flowing wear-resistant castable material, and is fixed on the inner wall of the heat-resistant layer by casting.

[0010] Preferably, it further comprises a first anchor;

[0011] The first anchor is disposed in the heat-resistant layer and can be fixedly connected to the inner wall of the tube body;

[0012] The number of the first anchors is more than two, and the more than two first anchors are arranged in sequence and spaced apart along the circumferential direction and / or axial direction of the heat-resistant layer.

[0013] Preferably, the first anchor is in a V-shape that gradually opens toward the axial direction of the heat-resistant layer;

[0014] And / or, the first anchor is made of metal.

[0015] Preferably, it further comprises a second anchor and a connecting rod;

[0016] The second anchor is arranged in the wear-resistant layer, one end of the connecting rod is fixedly connected to the second anchor, and the other end passes through the heat-resistant layer and is fixedly connected to the inner wall of the tube body;

[0017] The number of the second anchors is more than two, and the more than two second anchors are arranged in sequence and spaced apart along the circumferential direction and / or axial direction of the wear-resistant layer. The number of the connecting rods is equal to the number of the second anchors and corresponds one to one.

[0018] Preferably, the second anchor is in a V-shape that gradually opens toward the axis of the wear-resistant layer;

[0019] And / or, the second anchor piece and the connecting rod are both made of metal.

[0020] Preferably, it also includes an end cover, a heat-resistant block and a wear-resistant block;

[0021] The axial end of the tube body has a connecting flange, the wear-resistant layer includes a flow section and a closed section arranged along the axial direction, one end of the closed end is connected to the flow section, and the other end is flush with the end of the tube body having the connecting flange;

[0022] The end cover is detachably connected to the connecting flange, the heat-resistant block is located in the inner cavity of the closed section and can abut against the end cover, and the wear-resistant block is located in the inner cavity of the closed section and can abut against the surface of the heat-resistant block facing away from the end cover.

[0023] Preferably, the inner cavity shape of the closed section is a truncated cone that gradually expands toward the end cover, and the shapes of the heat-resistant block and the wear-resistant block match the inner cavity shape of the closed section at their locations.

[0024] Preferably, a heat-sensitive paint is coated on the outer wall of the tube.

[0025] The pipeline structure of the utility model adopts a technical solution in which a heat-resistant layer is arranged on the inner wall of the pipe body, the shape of the heat-resistant layer is a tubular body with an outer diameter equal to the inner diameter of the pipe body and an axial length equal to the axial length of the pipe body; and a wear-resistant layer is arranged on the inner wall of the heat-resistant layer, the shape of the wear-resistant layer is a tubular body with an outer diameter equal to the inner diameter of the heat-resistant layer and an axial length equal to the axial length of the pipe body. This enables the pipeline structure to have higher abrasion resistance and high temperature resistance, thereby ensuring its safety in actual work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic structural diagram of an embodiment of a pipeline structure of the utility model;

[0027] Figure 2 for Figure 1 A--A cross-sectional diagram in.

[0028] In the figure: 1-tube body; 2-heat-resistant layer; 3-wear-resistant layer; 4-first anchor; 5-second anchor; 6-connecting pipe; 7-end cover; 8-heat-resistant block; 9-wear-resistant block; 10-connecting flange; 11-flow section; 12-closed section. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the pipeline structure of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] like Figure 1 , 2 As shown, a pipeline structure comprises: a pipe body 1, a heat-resistant layer 2 is arranged on the inner wall of the pipe body 1, the shape of the heat-resistant layer 2 is a tubular body with an outer diameter equal to the inner diameter of the pipe body 1 and an axial length equal to the axial length of the pipe body 1, and a wear-resistant layer 3 is arranged on the inner wall of the heat-resistant layer 2, the shape of the wear-resistant layer 3 is a tubular body with an outer diameter equal to the inner diameter of the heat-resistant layer 2 and an axial length equal to the axial length of the pipe body 1. In this way, by arranging the heat-resistant layer 2 and the wear-resistant layer 3 on the inner wall of the pipe body 1, the pipeline structure can have higher abrasion resistance and high temperature resistance, so that its safety in actual work is guaranteed.

[0031] Specifically, the heat-resistant layer 2 is made of low-iron heat-insulating castable material, and is fixed on the inner wall of the pipe body 1 by casting. In this way, the heat-resistant layer 2 can be firmly fixed on the inner wall of the pipe body 1, wherein the material of the heat-resistant layer 2 is not limited to low-iron heat-insulating castable material, and can also be other lightweight castable materials that can achieve the design purpose.

[0032] Meanwhile, the wear-resistant layer 3 is made of a self-flowing corundum wear-resistant castable and is fixed on the inner wall of the heat-resistant layer 2 by casting. In this way, the wear-resistant layer 3 can be firmly fixed on the inner wall of the heat-resistant layer 2. The material of the wear-resistant layer 3 is not limited to the self-flowing corundum wear-resistant castable, but can also be other heavy castables that can achieve the design purpose.

[0033] As an implementation method, Figure 1 , 2As shown, it also includes a first anchor 4, which is arranged in the heat-resistant layer 2 and can be fixedly connected to the inner wall of the tube body 1. The number of the first anchors 4 is more than two, and the more than two first anchors 4 are arranged in sequence along the circumferential direction and / or axial direction of the heat-resistant layer 2. In this way, the firmness of the connection between the heat-resistant layer 2 and the inner wall of the tube body 1 can be improved, and the heat-resistant layer 2 can be prevented from falling off the inner wall of the tube body 1. Specifically, as Figure 1 , 2 As shown in , the shape of the first anchor 4 is a V-shape gradually opening toward the axial direction of the heat-resistant layer 2, but it is not limited thereto. It should be noted that the material of the first anchor 4 is metal, preferably alloy steel or stainless steel, and the first anchor 4 can be welded to the inner wall of the tube body 1 in actual production.

[0034] As an implementation method, Figure 1 , 2 As shown, it also includes a second anchor 5 and a connecting rod 6. The second anchor 5 is arranged in the wear-resistant layer 3. One end of the connecting rod 6 is fixedly connected to the second anchor 5, and the other end passes through the heat-resistant layer 2 and is fixedly connected to the inner wall of the tube body 1. The number of second anchors 5 is more than two, and the more than two second anchors 5 are arranged in sequence along the circumferential direction and / or axial direction of the wear-resistant layer 3. The number of connecting rods 6 is equal to the number of second anchors 5 and corresponds one to one. In this way, the firmness of the connection between the wear-resistant layer 3 and the inner wall of the heat-resistant layer 2 can be improved, and the wear-resistant layer 3 can be prevented from falling off the inner wall of the heat-resistant layer 2. Specifically, as Figure 1 , 2 As shown in the figure, the shape of the second anchor 5 is a V-shape that gradually opens toward the axial direction of the wear-resistant layer 3, but it is not limited to this; it should be noted that the material of the second anchor 5 and the connecting rod 6 is metal, preferably alloy steel or stainless steel. In actual production, the connecting rod 6 can be fixedly connected to the second anchor 5 and the inner wall of the tube body 1 by welding.

[0035] As an implementation method, Figure 1As shown, it also includes an end cover 7, a heat-resistant block 8 and a wear-resistant block 9. The axial end of the tube body 1 has a connecting flange 10, and the wear-resistant layer 3 includes a flow section 11 and a closed section 12 arranged along the axial direction. One end of the closed end is connected to the flow section 11, and the other end is flush with the end of the tube body 1 having the connecting flange 10. The end cover 7 is detachably connected to the connecting flange 10, the heat-resistant block 8 is located in the inner cavity of the closed section 12, and can abut on the end cover 7, and the wear-resistant block 9 is located in the inner cavity of the closed section 12, and can abut on the surface of the heat-resistant block 8 facing away from the end cover 7. In this way, the end cover 7 can be protected by the heat-resistant block 8 and the wear-resistant block 9, thereby preventing the end cover 7 from being damaged by the abrasion or high temperature of the fluid in the tube body 1. Specifically, the inner cavity shape of the closed section 12 is a truncated cone that gradually expands toward the end cover 7, and the shapes of the heat-resistant block 8 and the wear-resistant block 9 match the inner cavity shape of the closed section 12 where they are located.

[0036] As an implementation method, a heat-sensitive paint is coated on the outer wall of the tube body 1. In this way, when the heat-resistant layer 2 is damaged, the heat of the fluid in the tube body 1 is transferred to the position on the outer wall of the tube body 1 corresponding to the damaged position of the heat-resistant layer 2. At this time, the color of the heat-sensitive paint at this position will change. Therefore, the staff can judge whether the heat-resistant layer 2 is damaged and determine the damaged position by observing the color change of the heat-sensitive paint on the outer wall of the tube body 1, so as to repair it in time.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pipeline structure, characterized in that: include: tube body(1); A heat-resistant layer (2) is provided on the inner wall of the tube body (1), and the heat-resistant layer (2) is in the shape of a tubular body having an outer diameter equal to the inner diameter of the tube body (1) and an axial length equal to the axial length of the tube body (1); A wear-resistant layer (3) is provided on the inner wall of the heat-resistant layer (2), and the wear-resistant layer (3) is in the shape of a tubular body having an outer diameter equal to the inner diameter of the heat-resistant layer (2) and an axial length equal to the axial length of the tube body (1).

2. The pipeline structure according to claim 1, characterized in that: The heat-resistant layer (2) is made of a low-iron heat-insulating castable material and is fixed on the inner wall of the tube body (1) by casting.

3. The pipeline structure according to claim 1, characterized in that: The wear-resistant layer (3) is made of a corundum self-flowing wear-resistant casting material and is fixed on the inner wall of the heat-resistant layer (2) by casting.

4. The pipeline structure according to claim 1, characterized in that: Also includes a first anchor (4); The first anchor (4) is arranged in the heat-resistant layer (2) and can be fixedly connected to the inner wall of the tube body (1); The number of the first anchors (4) is more than two, and the more than two first anchors (4) are arranged in sequence and spaced apart along the circumferential direction and / or axial direction of the heat-resistant layer (2).

5. The pipeline structure according to claim 4, characterized in that: The first anchor (4) is in a V-shape that gradually opens toward the axial direction of the heat-resistant layer (2); And / or, the first anchor (4) is made of metal.

6. The pipeline structure according to claim 1, characterized in that: It also includes a second anchor (5) and a connecting rod (6); The second anchor (5) is arranged in the wear-resistant layer (3); one end of the connecting rod (6) is fixedly connected to the second anchor (5), and the other end passes through the heat-resistant layer (2) and is fixedly connected to the inner wall of the pipe body (1); The number of the second anchors (5) is more than two, and the more than two second anchors (5) are arranged in sequence and spaced apart along the circumferential direction and / or axial direction of the wear-resistant layer (3), and the number of the connecting rods (6) is equal to the number of the second anchors (5) and corresponds one to one.

7. The pipeline structure according to claim 6, characterized in that: The second anchor (5) is in a V-shape that gradually opens toward the axial direction of the wear-resistant layer (3); And / or, the second anchor (5) and the connecting rod (6) are both made of metal.

8. The pipeline structure according to any one of claims 1 to 7, characterized in that: It also includes an end cover (7), a heat-resistant block (8) and a wear-resistant block (9); The axial end of the tube body (1) is provided with a connecting flange (10); the wear-resistant layer (3) comprises a flow section (11) and a closed section (12) arranged along the axial direction; one end of the closed end is connected to the flow section (11), and the other end is flush with the end of the tube body (1) having the connecting flange (10); The end cover (7) is detachably connected to the connecting flange (10), the heat-resistant block (8) is located in the inner cavity of the closing section (12) and can abut against the end cover (7), and the wear-resistant block (9) is located in the inner cavity of the closing section (12) and can abut against the surface of the heat-resistant block (8) facing away from the end cover (7).

9. The pipeline structure according to claim 8, characterized in that: The inner cavity shape of the closed section (12) is a truncated cone shape that gradually expands toward the end cover (7), and the shapes of the heat-resistant block (8) and the wear-resistant block (9) match the inner cavity shape of the closed section (12) at their locations.

10. The pipeline structure according to any one of claims 1 to 7, characterized in that: The outer wall of the tube body (1) is coated with a heat-sensitive paint.

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