High-strength heat-resistant centrifugal casting pipe

Abstract

The utility model provides a high-strength heat-resistant centrifugal casting pipe. The high-strength heat-resistant centrifugal casting pipe mainly comprises a central pipe, an outer pipe, a reinforcing pipe, a connecting sleeve, cooling fins, a temperature detector and the like. According to the cast pipe, the center pipe and the outer pipe are integrally formed, the continuous annular cooling fins are arranged on the outer wall of the outer pipe, and each cooling fin is composed of the corresponding protrusion and the corresponding concave arc, so that the overall strength and heat resistance are effectively improved. One end of the reinforcing pipe is connected with the central pipe through a flange plate, a temperature detector is arranged, and a probe is integrated in the reinforcing pipe. The preferable technical scheme comprises a sealing ring, a reinforcing rib and a limiting block. The technical scheme is suitable for a high-temperature environment, and the stability and the service life of the cast pipe can be improved.

Description

Technical Field

[0001] The present application relates to the field of manufacturing and processing of centrifugal cast pipes, and specifically to a high-strength and heat-resistant centrifugal cast pipe. Background Art

[0002] Traditional methods for centrifugally cast pipes used in high-temperature environments typically rely on increasing pipe wall thickness or using high-melting-point alloys to improve heat resistance and strength. However, while these methods improve performance, they also increase pipe weight, increase costs, and impose structural design limitations. Especially in extremely high-temperature environments, traditional centrifugally cast pipes are prone to deformation or damage due to factors such as thermal expansion and thermal stress, which can affect their service life and safety. Utility Model Content

[0003] The purpose of this application is to provide a high-strength, heat-resistant centrifugally cast pipe that, through optimized structural design, improves its stability and service life in high-temperature environments without increasing the weight and cost of the pipe body. To achieve the above purpose, this application provides the following technical solutions: A high-strength, heat-resistant centrifugally cast pipe, comprising:

[0004] A central tube and an outer tube, wherein the central tube and the outer tube are integrally formed, the outer tube is arranged in the middle section of the central tube, and the outer wall of the outer tube is provided with a continuous annular heat sink, which is composed of a convex middle and concave arcs on both sides;

[0005] A reinforcement tube, the reinforcement tube being arranged at one end of the central tube and connected to the central tube via a flange. A temperature detector is arranged outside the reinforcement tube, the probe of the temperature detector being integrated into the reinforcement tube and extending out of the inner wall of the reinforcement tube, and the temperature detector can detect the temperature of the liquid in the tube;

[0006] The connecting sleeve is a hollow annular boss, one end of the connecting sleeve is an insertion end, and the other end is a connecting end. The connecting end is provided with an internal thread. The insertion ends of the two connecting sleeves are respectively inserted into the central tube and the reinforcement tube. The inner diameter of the insertion end is larger than the outer diameter of the central tube and the reinforcement tube.

[0007] Preferably, the two concave arcs are symmetrically arranged on both sides of the protrusion.

[0008] Preferably, the temperature detector has at least three probes, and the probes are arranged at different positions in the reinforced tube to form different temperature sensing points.

[0009] Preferably, the present technical solution further comprises a sealing ring, which is arranged in the connecting sleeve.

[0010] Preferably, the gap between the inner diameter of the insertion end of the connecting sleeve and the outer diameters of the central tube and the reinforcing tube is 0.5 mm to 1 mm.

[0011] Preferably, the present technical solution further comprises reinforcing ribs, wherein the reinforcing ribs are arranged at the connecting end.

[0012] Preferably, the reinforcing rib extends along the axial direction of the connecting sleeve.

[0013] Preferably, the reinforcing ribs are provided in plurality along the circumference of the connecting end.

[0014] Preferably, the present technical solution further comprises a limit block, wherein the limit blocks are evenly arranged around the periphery of the reinforcement tube, and the limit blocks abut against the insertion end.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This application effectively improves the overall strength and heat resistance of the cast pipe through the one-piece molding design of the central pipe and the outer pipe. The close combination of the central pipe and the outer pipe ensures the stability and reliability of the cast pipe in a high-temperature and high-pressure environment; the continuous annular heat sink provided on the outer wall of the outer pipe not only increases the heat dissipation area of ​​the cast pipe, but also enhances the heat dissipation efficiency through the bulge in the middle of the heat sink and the concave arc design on both sides. This structural optimization enables the cast pipe to dissipate heat quickly and effectively in a high-temperature working environment, reducing heat accumulation; in addition, the provision of the reinforcement pipe provides structural reinforcement at one end of the cast pipe, which is connected by a flange, not only enhancing the stability of the connection, but also facilitating installation and maintenance. The temperature detector outside the reinforcement pipe, with its probe integrated into the reinforcement pipe and extending out of the inner wall, can accurately detect the temperature of the liquid in the pipe, providing real-time and accurate temperature data to the operator, which helps to optimize the process flow and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of a high-strength, heat-resistant centrifugally cast pipe proposed in an embodiment of the present application;

[0018] Figure 2 This is a front view of a high-strength, heat-resistant centrifugally cast pipe proposed in an embodiment of the present application;

[0019] Figure 3 This is another perspective schematic diagram of a high-strength, heat-resistant centrifugally cast pipe proposed in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of a portion of the structure of a high-strength, heat-resistant centrifugally cast pipe proposed in an embodiment of the present application;

[0021] Figure 5 It is a three-dimensional schematic diagram of the reinforcement tube;

[0022] In the figure: 1. Center tube; 2. Outer tube; 3. Heat sink; 4. Protrusion; 5. Inward concave arc; 6. Reinforcement tube; 7. Flange; 8. Thermometer; 9. Probe; 10. Connecting sleeve; 11. Insertion end; 12. Connecting end; 13. Sealing ring; 14. Reinforcement rib; 15. Limit block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] It should be noted that, in the description of this application, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on this application.

[0025] Furthermore, it should be understood that for ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0026] It should be noted that like numbers and letters represent similar items in the following figures, so once an item is defined or described in one figure, it will not need to be further discussed and described in detail in the description of the subsequent figures.

[0027] In order to solve the technical problems in the background technology, such as Figure 1-5 As shown, the present application provides a technical solution: a high-strength heat-resistant centrifugal cast pipe, which has the following characteristics:

[0028] The centrifugally cast pipe comprises a central tube 1 and an outer tube 2, both of which are integrally molded to ensure structural stability and strength. The outer tube 2 is positioned in the middle section of the central tube 1, enhancing the overall strength of the pipe. The outer wall of the outer tube 2 is provided with continuous annular fins 3. These fins 3 consist of a central protrusion 4 and concave arcs 5 on either side. This structural design enables efficient heat exchange and improves the heat resistance of the pipe. The concave arcs 5 of the annular fins 3 facilitate air flow and improve heat dissipation efficiency, while the protrusions 4 of the fins 3 enhance their mechanical strength. The centrifugally cast pipe also includes a reinforcement tube 6, which is positioned at one end of the central tube 1. To ensure a secure connection, the reinforcement tube 6 is connected to the central tube 1 via a flange 7. The design of the flange 7 ensures a tight and secure connection. A temperature sensor 8 is located on the outside of the reinforcement tube 6. The probe 9 of the temperature sensor 8 is integrated into the reinforcement tube 6 and extends beyond the inner wall of the reinforcement tube 6. The probe 9 designed in this way can accurately detect the temperature of the liquid in the pipe and provide real-time data to the operator. The centrifugal casting pipe also includes a connecting sleeve 10. The connecting sleeve 10 is a hollow annular boss, one end of which is an insertion end 11 and the other end is a connecting end 12. The connecting end 12 is provided with an internal thread to facilitate connection with other components. The insertion ends 11 of the two connecting sleeves 10 are respectively inserted into the central pipe 1 and the reinforcement pipe 6, and the insertion ends 11 and the central pipe 1 and the reinforcement pipe 6 are sealed and fixed by injecting colloid or wrapping sealing tape. In addition, the inner diameter of the insertion end 11 is larger than the outer diameter of the central pipe 1 and the reinforcement pipe 6, which provides tolerance for installation errors and enhances the adaptability of pipeline connections.

[0029] It should be noted that the concave arcs 5 are symmetrically arranged on both sides of the protrusion 4, providing uniform force distribution on the heat sink 3 and enhancing the structural stability and durability of the heat sink 3. The protrusion 4 is located between the two concave arcs 5, with its convex surface facing the outside of the device. The symmetrical design of the concave arcs 5 helps to form a uniform airflow around the heat sink 3, optimizes the fluid dynamics performance, and improves the heat dissipation efficiency. The symmetrical arrangement of the concave arcs 5 allows heat to be transferred more evenly from the protrusion 4 to both sides, improving the heat exchange efficiency and uniformity of the entire heat sink 3.

[0030] Furthermore, by placing at least three probes 9 at different locations within the reinforced tube 6, multi-point monitoring of the liquid temperature within the tube can be achieved, providing more comprehensive temperature data. By placing probes 9 at different locations, the temperature of the liquid within the tube can be more accurately monitored and controlled, especially in situations where the temperature distribution is uneven, helping to improve the control accuracy of the entire system. Multi-point temperature sensing can promptly detect localized overheating and prevent potential safety risks such as pipe rupture or liquid boiling.

[0031] It should be noted that sealing ring 13 is disposed within connecting sleeve 10. The provision of sealing ring 13 significantly improves the sealing performance when connecting sleeve 10's connecting end 12 is threadedly connected to another pipe. The presence of sealing ring 13 ensures a more reliable connection between connecting sleeve 10 and the pipe, reducing the risk of loosening due to vibration or pressure changes.

[0032] Furthermore, the clearance between the inner diameter of the insertion end 11 of the connecting sleeve 10 and the outer diameters of the central tube 1 and the reinforcement tube 6 is 0.5 to 1 mm. Controlling this clearance within the 0.5 to 1 mm range ensures a precise fit between the connecting sleeve 10, the central tube 1, and the reinforcement tube 6, improving the tightness and stability of the connection. This appropriate clearance helps the sealing ring 13 create a uniform pressure distribution within the connecting sleeve 10, thereby achieving a better sealing effect.

[0033] It should be noted that the reinforcement ribs 14 provided on the connection end 12 significantly enhance the mechanical strength of the connection end 12, enabling it to withstand greater external forces, such as torque and tension. The presence of the reinforcement ribs 14 enhances the structural stability of the connection end 12 and reduces the risk of connection failure due to external forces. The reinforcement ribs 14 help reduce wear and deformation of the connection end 12, thereby extending the service life of the connection sleeve 10 and the entire piping system.

[0034] It should be noted that the ribs 14 extend axially along the connecting sleeve 10, helping to evenly distribute stress on the connecting sleeve 10 and reduce local stress concentration, thereby improving the reliability of the connection. The axial ribs 14 provide additional support and increase the strength of the connection between the connecting sleeve 10 and other pipe materials.

[0035] It is worth noting that the multiple circumferential reinforcement ribs 14 significantly increase the circumferential strength of the connection end 12, enabling it to withstand greater torque and pressure. The circumferential distribution of the reinforcement ribs 14 provides uniform support and enhances the stability between the connection end 12 and the pipeline. The circumferential arrangement of the reinforcement ribs 14 helps to more evenly distribute stress on the connection end 12, reducing stress concentration points and improving the reliability of the connection.

[0036] It should be noted that the stoppers 15 are evenly spaced around the reinforcement tube 6 and abut the insertion end 11. This uniform placement of the stoppers 15 improves the positioning accuracy between the reinforcement tube 6 and the connecting sleeve 10, ensuring an accurate and consistent pipe connection. The stoppers 15 provide additional support, enhancing the stability of the connection between the reinforcement tube 6 and the connecting sleeve 10 and reducing vibration and loosening of the connection.

[0037] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-strength heat-resistant centrifugal cast pipe, characterized in that: include: A central tube (1) and an outer tube (2), wherein the central tube (1) and the outer tube (2) are integrally formed, the outer tube (2) is arranged in the middle section of the central tube (1), and the outer wall of the outer tube (2) is provided with a continuous annular heat sink (3), wherein the heat sink (3) is composed of a central convexity (4) and inwardly concave arcs (5) on both sides; A reinforcement tube (6), the reinforcement tube (6) is arranged at one end of the central tube (1), the reinforcement tube (6) and the central tube (1) are connected via a flange (7), a temperature detector (8) is arranged outside the reinforcement tube (6), a probe (9) of the temperature detector (8) is integrated into the reinforcement tube (6) and extends out of the inner wall of the reinforcement tube (6), and the temperature detector (8) can detect the temperature of the liquid in the tube; A connecting sleeve (10) is provided. The connecting sleeve (10) is a hollow annular boss. One end of the connecting sleeve (10) is an insertion end (11), and the other end is a connecting end (12). The connecting end (12) is provided with an internal thread. The insertion ends (11) of the two connecting sleeves (10) are respectively inserted into the central tube (1) and the reinforcement tube (6). The inner diameter of the insertion end (11) is larger than the outer diameter of the central tube (1) and the reinforcement tube (6).

2. The high-strength heat-resistant centrifugal cast pipe according to claim 1, characterized in that: The two inwardly concave arcs (5) are symmetrically arranged on both sides of the protrusion (4).

3. The high-strength heat-resistant centrifugal cast pipe according to claim 1, characterized in that: The temperature detector (8) has at least three probes (9), and the probes (9) are arranged at different positions in the reinforced tube (6) to form different temperature sensing points.

4. The high-strength heat-resistant centrifugally cast pipe according to claim 1, characterized in that: It also includes a sealing ring (13), which is arranged in the connecting sleeve (10).

5. The high-strength heat-resistant centrifugally cast pipe according to claim 1, characterized in that: The gap between the inner diameter of the insertion end (11) of the connecting sleeve (10) and the outer diameters of the central tube (1) and the reinforcing tube (6) is 0.5 mm to 1 mm.

6. The high-strength heat-resistant centrifugally cast pipe according to claim 1, characterized in that: It also includes a reinforcing rib (14), which is arranged on the connecting end (12).

7. The high-strength heat-resistant centrifugally cast pipe according to claim 6, characterized in that: The reinforcing rib (14) extends along the axial direction of the connecting sleeve (10).

8. The high-strength heat-resistant centrifugally cast pipe according to claim 7, characterized in that: A plurality of reinforcing ribs (14) are arranged along the circumference of the connecting end (12).

9. The high-strength heat-resistant centrifugally cast pipe according to any one of claims 1 to 8, characterized in that: It also includes a limiting block (15), which is evenly arranged on the periphery of the reinforcing tube (6), and the limiting block (15) abuts against the insertion end (11).

Images