Solar heat conduction type stainless steel seamless steel pipe

Abstract

The utility model relates to the technical field of seamless steel pipe design, and discloses a solar heat conduction type stainless steel seamless steel pipe which comprises a first steel pipe and a connecting disc, a second steel pipe is arranged on the right side of the first steel pipe, threaded grooves are formed in the inner wall of the first steel pipe and the inner wall of the second steel pipe, and reinforcing assemblies are arranged in the threaded grooves. A first connecting ring is fixedly connected to the right side of the outer wall of the first steel pipe, a gear groove is formed in the outer wall of the first connecting ring, and a plurality of sliding grooves are formed in the right side of the first connecting ring. According to the utility model, the rotating inner gear ring synchronously drives the plurality of screw rods to rotate through the meshing gears, so that the fixing strips are quickly clamped into the fixing grooves, and multi-point mechanical locking is formed. According to the design, synchronous action is achieved through gear transmission, point-by-point operation is not needed, relative rotation of the first steel pipe and the second steel pipe can be rapidly prevented, multi-point stress is uniform, the torsion resistance of the connecting position is improved, and it is guaranteed that a pipeline system is kept stable under the vibration or load effect.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe design technology, and in particular to a thermally conductive stainless steel seamless steel pipe for solar energy applications. Background Technology

[0002] In the field of solar thermal utilization, thermally conductive stainless steel seamless pipes, as the core component for transmitting heat transfer media, are widely used in heat collection, storage, and supply systems. As solar technology expands into high-temperature and high-pressure conditions, pipelines need to maintain stable thermal conductivity and connection strength under complex thermal environments. Traditional steel pipe connection technologies, due to mechanical structural design flaws, are prone to problems such as interrupted heat conduction paths and thermal stress concentration at connections, making it difficult to meet the dual requirements of efficient heat conduction and safe operation in modern solar systems. Therefore, structural innovation is urgently needed to improve the reliability of pipelines under extreme conditions.

[0003] Existing thermally conductive steel pipe connections for solar energy applications suffer from several key technological shortcomings: First, mechanical locking methods lead to reduced thermal conductivity. Traditional single-screw or snap-fit ​​fixing methods create thermal resistance at the contact interface, affecting the continuity of heat conduction. Furthermore, single-point stress can easily cause localized deformation of the steel pipe, potentially leading to loosening of the connection due to material creep under high-temperature environments. Second, there is insufficient coordination between circumferential positioning and axial tightening. Conventional threaded connections rely on manual alignment, which can easily result in loose engagement between the helical ribs and thread grooves due to angular deviations, creating thermal blind spots. The cumbersome installation process also leads to low construction efficiency. Third, there is a lack of adaptive thermal expansion capability. Traditional structures do not fully consider the difference in thermal expansion between stainless steel and the thermally conductive medium, making the connection components prone to fatigue fracture due to stress accumulation under long-term temperature cycling. These problems result in decreased thermal conductivity and increased leakage risk in traditional pipelines under high-temperature and vibration conditions, urgently requiring innovative designs that incorporate linked tightening, precise positioning, and optimized thermal stability. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a thermally conductive stainless steel seamless steel pipe for solar energy applications. This invention aims to solve the problems of insufficient torsional resistance in existing seamless steel pipes, inefficient installation, inaccurate positioning, and lack of robustness.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A thermally conductive stainless steel seamless pipe for solar energy applications includes a first steel pipe and a connecting disc. A second steel pipe is provided on the right side of the first steel pipe. Threaded grooves are formed on the inner walls of both the first and second steel pipes. Reinforcing components are provided inside the threaded grooves. A first connecting ring is fixedly connected to the right side of the outer wall of the first steel pipe. A gear groove is formed on the outer wall of the first connecting ring. Multiple sliding grooves are formed on the right side of the first connecting ring. The left side of the sliding groove is connected to the right side of the gear groove through a through groove. A fixing component is provided inside the sliding groove. A second connecting ring is fixedly connected to the left end of the outer wall of the second steel pipe. Multiple fixing grooves are formed on the left side of the second connecting ring.

[0007] Furthermore, a splined shaft is fixedly connected to the left side of the connecting plate, and a throttle is fixedly connected to the right side of the connecting plate.

[0008] Furthermore, the reinforcing component includes a helical rib, which is threadedly connected to the threaded groove. Multiple fixing ribs are fixedly connected to the inner wall of the helical rib, and a swivel is fixedly connected to the right side of the multiple fixing ribs and the helical rib.

[0009] Furthermore, a spline groove is provided inside the rotating ring.

[0010] Furthermore, the fixing component includes a fixing strip, a screw is threadedly connected to the left side of the fixing strip, and a gear is fixedly connected to the left side of the screw through the through groove, the gear being located inside the gear groove.

[0011] Furthermore, an internal gear ring is rotatably connected inside the gear slot, and the internal gear ring meshes with multiple gears.

[0012] Furthermore, the size of the spline groove corresponds to that of the spline shaft.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the rotating internal gear ring synchronously drives multiple screws to rotate through meshing gears, causing the fixing strip to quickly engage with the fixing groove, forming a multi-point mechanical lock. This design achieves synchronous action through gear transmission, eliminating the need for point-by-point operation. It can quickly prevent steel pipe one from rotating relative to steel pipe two, and the force is evenly distributed across multiple points, improving the torsional resistance of the connection and ensuring the stability of the pipeline system under vibration or load.

[0015] 2. In this utility model, after the spline shaft and spline groove are positioned, rotating the handle drives the rotating ring and helical ribs into the threaded groove, realizing a quick connection of steel pipes. This structure utilizes the circumferential positioning characteristics of the spline and the axial fastening function of the helical ribs, completing alignment and locking with a single rotation, simplifying the installation process. At the same time, the tight engagement between the helical ribs and the threaded groove enhances the connection's firmness, making it suitable for pipe connection scenarios requiring high sealing and stability. Attached Figure Description

[0016] Figure 1 This is a perspective view of a thermally conductive stainless steel seamless pipe for solar energy proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a thermally conductive stainless steel seamless pipe for solar energy proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the screw structure of a thermally conductive stainless steel seamless steel pipe for solar energy proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the spiral rib structure of a thermally conductive stainless steel seamless steel pipe for solar energy proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the spline shaft structure of a thermally conductive stainless steel seamless steel pipe for solar energy proposed in this utility model.

[0021] Legend:

[0022] 1. Steel pipe one; 2. Internal gear ring; 3. Connecting ring one; 4. Connecting ring two; 5. Steel pipe two; 6. Rotary ring; 7. Spiral rib; 8. Fixed rib; 9. Turning handle; 10. Screw; 11. Gear; 12. Fixed groove; 13. Fixed strip; 14. Spline groove; 15. Spline shaft; 16. Connecting disc. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1-3This utility model provides an embodiment of a thermally conductive stainless steel seamless steel pipe for solar energy applications, comprising a steel pipe 1 and a connecting disc 16. A steel pipe 5 is provided on the right side of the steel pipe 1. Both the inner walls of the steel pipe 1 and the steel pipe 5 are provided with threaded grooves, and spiral ribs 7 are provided inside the threaded grooves. A connecting ring 3 is fixedly connected to the right side of the outer wall of the steel pipe 1. A gear groove is provided on the outer wall of the connecting ring 3. Multiple sliding grooves are provided on the right side of the connecting ring 3. The left side of the sliding groove is connected to the right side of the gear groove through a through groove. The interior of the sliding groove... A fixing strip 13 is provided. A connecting ring 4 is fixedly connected to the left end of the outer wall of the steel pipe 2 5. Multiple fixing grooves 12 are opened on the left side of the connecting ring 2 4. A spline shaft 15 is fixedly connected to the left side of the connecting plate 16. A throttle 9 is fixedly connected to the right side of the connecting plate 16. A screw 10 is threadedly connected to the left side of the fixing strip 13. A gear 11 is fixedly connected to the left side of the screw 10 through a groove. The gear 11 is located inside the gear groove. An internal gear ring 2 is rotatably connected inside the gear groove. The internal gear ring 2 meshes with multiple gears 11.

[0025] Specifically, the installation process for this type of seamless stainless steel thermally conductive pipe for solar energy applications revolves around rapid locking and efficient connection. First, align the sliding grooves and fixing grooves 12 of steel pipe 1 and steel pipe 5. Rotating the internal gear ring 2, through meshing with multiple gears 11, synchronously drives the gears 11 to rotate the screw 10, causing the fixing strip 13 to quickly engage inside the fixing groove 12, forming a multi-point mechanical anti-rotation structure. This design achieves synchronous fastening through gear linkage, avoiding the cumbersome point-by-point operation of traditional single-screw operation. It effectively prevents relative rotation of the two steel pipes during the flow of the heat transfer medium, ensuring the stability of the pipeline system.

[0026] Reference Figure 1 , Figure 4 and Figure 5 The spiral rib 7 is threadedly connected to the threaded groove. Multiple fixed ribs 8 are fixedly connected to the inner wall of the spiral rib 7. A rotating ring 6 is fixedly connected to the right side of the multiple fixed ribs 8 and the spiral rib 7. A spline groove 14 is opened inside the rotating ring 6. The spline groove 14 corresponds to the size of the spline shaft 15.

[0027] Specifically, the left end of the spiral rib 7 is then inserted into the threaded groove on the inner wall of the right end of steel pipe 2 5. Through the positioning engagement of the spline shaft 15 and the spline groove 14, rotating the handle 9 drives the connecting disc 16 and the rotating ring 6 to rotate, causing the spiral rib 7 to be fully screwed into the threaded groove on the inner wall of steel pipe 1 and steel pipe 2 5, achieving a spiral engagement connection. This mechanism combines the circumferential positioning function of the spline shaft 15 and the spline groove 14 with the axial fastening characteristics of the spiral rib 7 and the threaded groove, completing alignment and locking with a single rotation. Simultaneously, connecting ring 1 3 and connecting ring 2 4, together with the fixing rib 8, enhance the structural support. The spiral structure strengthens the sealing and firmness of the connection, making it suitable for complex operating conditions of high pressure and high-frequency vibration in solar thermal systems, improving the reliability and heat conduction efficiency of pipe connections.

[0028] Working principle: In use, first place steel pipe 1 and steel pipe 2 together, aligning the sliding groove with the fixed groove 12. Then rotate the internal gear ring 2. Since the internal gear ring 2 meshes with multiple gears 11, rotating the internal gear ring 2 will simultaneously drive multiple gears 11 to rotate, thereby driving multiple screws 10 to rotate. This causes the fixing strip 13 to move and enter the interior of the fixed groove 12, thus preventing rotation between steel pipe 1 and steel pipe 2. Then, insert the left end of the spiral rib 7 into steel pipe 2. On the right end, the spiral rib 7 is inserted into the threaded groove on the inner wall of the second steel pipe 5. Then, the spline shaft 15 is inserted into the spline groove 14, and the handle 9 is turned, thereby driving the connecting plate 16 and the spline shaft 15 to rotate. When the spline shaft 15 rotates, it will simultaneously drive the rotating ring 6 to rotate, so that the spiral rib 7 can be completely inserted into the threaded groove on the inner wall of the second steel pipe 5 and the first steel pipe 1, thereby connecting the first steel pipe 1 and the second steel pipe 5, and also improving the firmness of the first steel pipe 1 and the second steel pipe 5.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat conductive type stainless steel seamless steel pipe for solar energy, comprising a steel pipe 1 and a connecting disc 16, characterized in that: A second steel pipe (5) is provided on the right side of the first steel pipe (1). Both the first steel pipe (1) and the second steel pipe (5) have threaded grooves on their inner walls. A reinforcing component is provided inside the threaded grooves. A first connecting ring (3) is fixedly connected to the right side of the outer wall of the first steel pipe (1). A gear groove is provided on the outer wall of the first connecting ring (3). Multiple sliding grooves are provided on the right side of the first connecting ring (3). The left side of the sliding groove is connected to the right side of the gear groove through a through groove. A fixing component is provided inside the sliding groove. A second connecting ring (4) is fixedly connected to the left end of the outer wall of the second steel pipe (5). Multiple fixing grooves (12) are provided on the left side of the second connecting ring (4).

2. The heat-conducting type stainless steel seamless pipe for solar energy according to claim 1, characterized by: A spline shaft (15) is fixedly connected to the left side of the connecting plate (16), and a throttle (9) is fixedly connected to the right side of the connecting plate (16).

3. The heat-conducting type stainless steel seamless pipe for solar energy according to claim 2, characterized by The reinforcing component includes a spiral rib (7), which is threadedly connected to the threaded groove. Multiple fixing ribs (8) are fixedly connected to the inner wall of the spiral rib (7), and a swivel (6) is fixedly connected to the right side of the multiple fixing ribs (8) and the spiral rib (7).

4. The heat-conducting type stainless steel seamless pipe for solar energy according to claim 3, characterized by: The rotating ring (6) has a spline groove (14) inside.

5. The heat-conducting stainless steel seamless pipe for solar energy according to claim 1, characterized by The fixing component includes a fixing strip (13), and a screw (10) is threadedly connected to the left side of the fixing strip (13). The left side of the screw (10) passes through the through groove and is fixedly connected to a gear (11), which is located inside the gear groove.

6. A thermally conductive stainless steel seamless pipe for solar energy use according to claim 5, characterized in that: An internal gear ring (2) is rotatably connected inside the gear slot, and the internal gear ring (2) meshes with a plurality of gears (11).

7. A thermally conductive stainless steel seamless pipe for solar energy use according to claim 4, characterized in that: The size of the spline groove (14) corresponds to that of the spline shaft (15).

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