Heat transfer tube with inner tooth reinforcement and fixing structure

Abstract

The utility model provides a kind of inner tooth reinforced heat pipe with fixed structure, it is related to heat pipe field, this inner tooth reinforced heat pipe with fixed structure includes pipe body, the inside of pipe body is integrally formed with micro straight rib, the top of pipe body is fixedly connected with connecting pipe, the inside of connecting pipe is fixedly connected with two butt plates, the top of butt plate is equipped with through slot, the top of butt plate is equipped with two clamping grooves, the inside of connecting pipe is fixedly connected with mounting bracket, the bottom of mounting bracket is fixedly connected with helical fin This kind of inner tooth reinforced heat pipe with fixed structure improves heat exchange efficiency, realizes quick disassembly and maintenance at the same time, ensure that structure is stable and reliable, greatly expand heat dissipation area, strengthen convective heat transfer effect, realize bidirectional efficient heat transfer.

Description

Technical Field

[0001] This utility model relates to an internally toothed heat transfer tube with a fixed structure, specifically an internally toothed heat transfer tube with a fixed structure, belonging to the field of heat transfer tube technology. Background Technology

[0002] Internally toothed heat transfer tubes are pipes designed to enhance heat transfer efficiency through a special structure. Their inner walls feature regularly arranged tooth-like protrusions. These internal teeth disrupt the boundary layer of the fluid flowing within the tube, increasing turbulence and reducing thermal resistance, thus making heat transfer more efficient. Simultaneously, the internal teeth also expand the heat transfer area, further enhancing the heat transfer effect. They are commonly used in petrochemical, refrigeration and air conditioning, and power engineering fields requiring high-efficiency heat transfer. They can achieve higher heat transfer performance than ordinary smooth tubes without significantly increasing fluid resistance, making them one of the important components for enhancing heat transfer in industry.

[0003] The prior art patent application number is 202321116520.X, entitled "A Micro-Straight Rib Combined Enhanced Heat Transfer Tube with Built-in Fish Tail-Shaped Vortex Generator". It includes a micro-straight rib enhanced heat transfer tube and a fish tail-shaped vortex generator. Micro-straight ribs are formed on the inner wall of a smooth circular tube through a rolling and cold working process, and are evenly distributed along the circumference of the heat transfer tube. The micro-straight ribs effectively increase the heat transfer area inside the tube. Therefore, it is necessary to place the fish tail-shaped vortex generator inside the micro-straight rib enhanced heat transfer tube to achieve the purpose of enhanced heat transfer. The fish tail-shaped vortex generator is formed by cutting off a portion of the material from an aluminum sheet and twisting it. Its length is equal to that of the micro-straight rib enhanced heat transfer tube. The fish tail-shaped fins twist axially, and the untwisted leading edge is radially symmetrical.

[0004] However, the fishtail-shaped fins inside the equipment use a traditional fixed installation structure. This design makes fin disassembly extremely difficult. In actual use, when problems such as scale buildup or damage occur on the fins, it is difficult to disassemble and maintain them quickly. This not only increases maintenance costs but also affects the normal operating efficiency of the equipment. In addition, the outside of the equipment tube is not equipped with an additional heat-conducting enhancement structure, and heat exchange relies solely on the surface area of ​​the tube itself. This single heat conduction method greatly limits the heat transfer efficiency and cannot meet the requirements of high-efficiency heat exchange. As a result, heat cannot be fully transferred bidirectionally between the fluid inside the tube and the external environment, reducing the overall heat exchange performance of the equipment. Therefore, a new technical solution needs to be designed to address this issue. Utility Model Content

[0005] The purpose of this invention is to provide an internally toothed heat transfer tube with a fixed structure to solve the above-mentioned problems. However, in the prior art, the fishtail-shaped fins inside the device adopt a traditional fixed installation structure. This design makes it extremely difficult to disassemble the fins. In actual use, when the fins have problems such as fouling or damage, it is difficult to disassemble and maintain them quickly. The tube body does not have an additional heat-conducting enhancement structure on the outside, and heat exchange is only carried out by the surface area of ​​the tube body itself. This single heat conduction method greatly limits the heat transfer efficiency.

[0006] This utility model is achieved through the following technical solution: a heat transfer tube with internal teeth and a fixed structure.

[0007] Preferably, the tube body has micro-straight ribs integrally formed on its inner side, and a connecting pipe is fixedly connected to the top of the tube body. Two docking plates are fixedly connected to the inner side of the connecting pipe. The top of the docking plates has a through groove and two slots. The micro-straight ribs on the inner side of the tube body effectively increase the contact area of ​​the fluid inside the tube, enhance the turbulence inside the tube, improve the heat transfer coefficient of the fluid inside the tube, and enhance the heat exchange efficiency. The setting of the connecting pipe, docking plates, through groove, and slots provides a basic structure for the installation and connection of subsequent components, facilitates docking and assembly with other components, and improves the convenience and stability of equipment assembly.

[0008] Preferably, a mounting bracket is fixedly connected to the inner side of the connecting pipe. The mounting bracket provides a reliable mounting carrier for other functional components, so that components such as the spiral fins and mounting cylinder can be stably fixed inside the connecting pipe, ensuring that the position of each component is fixed during equipment operation, avoiding the impact of shaking on equipment performance, and also facilitating the layout and optimization of the overall structure.

[0009] Preferably, the bottom of the mounting bracket is fixedly connected with a spiral fin. The spiral fin can significantly increase the heat exchange area inside the pipe. Its spiral shape guides the fluid to generate spiral flow, enhances the turbulence of the fluid, breaks the boundary layer of the fluid on the inner wall of the pipe, effectively reduces thermal resistance, promotes more efficient heat transfer, and thus greatly improves the heat exchange efficiency of the equipment.

[0010] Preferably, the top of the mounting frame is fixedly connected to two mounting cylinders, and the interior of the mounting cylinders is provided with mounting grooves. The mounting cylinders and mounting grooves provide precise installation and positioning space for components such as the rotating rod, ensuring that the rotating rod can rotate stably. At the same time, they also protect the rotating rod and related components, preventing them from being damaged by external interference during operation, and ensuring the reliability and stability of the equipment operation.

[0011] Preferably, a rotating rod is movably connected to the inner cavity of the mounting groove. The top end of the rotating rod passes through the mounting cylinder and extends above the docking plate. The cooperation between the rotating rod, the mounting cylinder, and the mounting groove forms a stable and flexible transmission structure, ensuring that the rotating rod accurately transmits power or realizes the component connection function during equipment operation.

[0012] Preferably, two locking rods are fixedly connected to the outer side of the rotating rod, and the locking rods engage with the locking slots. A compression spring is sleeved on the outer side of the rotating rod, and the compression spring is located in the inner cavity of the mounting slot. The engagement structure between the locking rods and the locking slots enables a quick and stable connection between the components, ensuring the reliability of the connection. The elastic pressure provided by the compression spring can play a buffering and adaptive adjustment role during the engagement process, ensuring a tight and stable connection. At the same time, during disassembly, the spring force helps to easily separate the components, further improving the convenience of equipment assembly and disassembly.

[0013] Preferably, a corrugated heat-conducting ring is fixedly connected to the outer side of the tube body, and the corrugated heat-conducting rings are arranged sequentially from top to bottom. Eight corrugated heat-conducting plates are embedded in the inner side of the corrugated heat-conducting rings, and the corrugated heat-conducting plates are evenly distributed. The corrugated heat-conducting rings and corrugated heat-conducting plates together constitute a highly efficient external heat-conducting structure. Its unique corrugated shape greatly increases the heat dissipation area on the outer side of the tube body, while disturbing the external fluid boundary layer and enhancing the convective heat transfer effect, so that heat can be transferred more fully between the tube body and the external environment, effectively improving the overall heat exchange performance of the equipment and meeting the requirements of high-efficiency heat exchange.

[0014] This utility model provides an internally toothed reinforced heat transfer tube with a fixed structure, which has the following beneficial effects:

[0015] 1. This internally toothed heat transfer tube with a fixed structure significantly improves overall performance through the spiral fin mounting mechanism and the synergistic effect of the spiral fin mounting mechanism and the heat conduction mechanism. With its unique spiral fin design and convenient snap-fit ​​structure, the spiral fin mounting mechanism enhances the turbulence of the fluid inside the tube and improves the heat exchange efficiency, while also enabling quick disassembly and maintenance, ensuring a stable and reliable structure.

[0016] 2. This internally toothed heat transfer tube with a fixed structure, through a heat conduction mechanism, utilizes a corrugated heat conduction ring and a corrugated heat conduction plate to significantly expand the heat dissipation area, enhance the convective heat transfer effect, achieve bidirectional high-efficiency heat transfer, and has the characteristics of compact and durable structure. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of the spiral fin mounting mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional view of the spiral fin mounting mechanism of this utility model after disassembly.

[0021] [Explanation of Key Component Symbols]

[0022] 1. Pipe body; 101. Micro straight rib;

[0023] 2. Connecting pipe; 201. Butt plate; 202. Through groove; 203. Slot;

[0024] 3. Mounting bracket; 301. Propeller fins;

[0025] 4. Mounting cylinder; 401. Mounting groove; 402. Rotating rod; 403. Locking rod; 404. Compression spring;

[0026] 5. Corrugated heat-conducting ring; 6. Corrugated heat-conducting plate. Detailed Implementation

[0027] This utility model embodiment provides an internally toothed heat transfer tube with a fixed structure.

[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 It includes a tube body 1, with micro-straight ribs 101 integrally formed on the inner side of the tube body 1, and a connecting tube 2 fixedly connected to the top of the tube body 1. Two docking plates 201 are fixedly connected to the inner side of the connecting tube 2, and a through groove 202 and two slots 203 are opened on the top of the docking plate 201.

[0029] Please refer to it again. Figure 1 , Figure 3 and Figure 4 A mounting bracket 3 is fixedly connected to the inner side of the connecting pipe 2. A spiral fin 301 is fixedly connected to the bottom of the mounting bracket 3. Two mounting cylinders 4 are fixedly connected to the top of the mounting bracket 3. A mounting groove 401 is opened inside the mounting cylinder 4. A rotating rod 402 is movably connected to the inner cavity of the mounting groove 401. The top end of the rotating rod 402 passes through the mounting cylinder 4 and extends to the top of the docking plate 201. Two locking rods 403 are fixedly connected to the outer side of the rotating rod 402. The locking rods 403 are engaged with the locking groove 203. A compression spring 404 is sleeved on the outer side of the rotating rod 402. The compression spring 404 is located in the inner cavity of the mounting groove 401.

[0030] When components need to be installed, the mounting bracket 3 is first positioned via the mating plate 201 inside the connecting pipe 2. At this time, the mounting cylinder 4 at the top of the mounting bracket 3 corresponds to the slot 203 of the mating plate 201. The operator manually rotates the rotating rod 402 extending above the mating plate 201, causing the outer locking rod 403 to rotate synchronously, so that the locking rod 403 is aligned with the slot 203 and then inserted into the slot 203. Subsequently, the compression spring 404 undergoes elastic deformation due to the downward pressure of the rotating rod 402, providing continuous clamping force to the locking rod 403, ensuring that the locking rod 403 is tightly engaged with the slot 203, thereby firmly fixing the mounting bracket 3 inside the connecting pipe 2, and positioning the bottom spiral fin 301 inside the pipe body 1. During equipment operation, the pipe body... When the fluid in 1 flows through the spiral fin 301, it is guided by its spiral shape to generate spiral flow. The spiral surface of the spiral fin 301 pushes the fluid to form turbulence, destroys the boundary layer of the inner wall of the pipe, reduces thermal resistance, and enhances the heat exchange between the fluid in the pipe and the pipe wall. At the same time, the mounting bracket 3 ensures that the spiral fin 301 remains stable under the impact of the fluid through rigid connection, avoiding vibration and displacement. When disassembly and maintenance are required, pull up the rotating rod 402 to make the locking rod 403 disengage from the locking groove 203. Then, rotate the rotating rod 402 in the opposite direction to move the locking rod 403 to the through groove 202. After that, the elastic restoring force of the compression spring 404 assists the rotating rod 402 to move down, so that the mounting bracket 3 and the connecting pipe 2 can be quickly separated, realizing the convenient disassembly of the spiral fin 301.

[0031] Please refer to it again. Figure 1 and Figure 2 A corrugated heat-conducting ring 5 is fixedly connected to the outside of the tube body 1, and the corrugated heat-conducting ring 5 is arranged sequentially from top to bottom. Eight corrugated heat-conducting plates 6 are embedded in the inner side of the corrugated heat-conducting ring 5, and the corrugated heat-conducting plates 6 are evenly distributed.

[0032] The corrugated heat-conducting ring 5 on the outside of the tube body 1 and the corrugated heat-conducting plate 6 form a three-dimensional extended surface. When heat is transferred from the fluid inside the tube to the tube wall, it is first conducted radially through the densely distributed network of the corrugated heat-conducting plate 6, increasing the cross-sectional area of ​​the heat flow channel. The corrugated design also disturbs the fluid boundary layer, enhances the convective heat transfer coefficient, and the longitudinally arranged corrugated heat-conducting ring 5 further expands the axial heat transfer path, forming a multi-dimensional heat conduction network, which allows heat to spread rapidly to the entire outer surface. This structure not only increases the heat dissipation area through its geometry, but also improves the surface heat transfer efficiency by utilizing the principles of fluid dynamics, achieving efficient heat exchange between the inside and outside of the tube.

[0033] Working principle: When components need to be installed, the mounting bracket 3 is first positioned via the mating plate 201 inside the connecting pipe 2. At this time, the mounting cylinder 4 at the top of the mounting bracket 3 corresponds to the slot 203 of the mating plate 201. The operator manually rotates the rotating rod 402 extending above the mating plate 201, causing the outer locking rod 403 to rotate synchronously, so that the locking rod 403 is aligned with the slot 203 and then locked into the slot 203. Subsequently, the compression spring 404 undergoes elastic deformation due to the downward pressure of the rotating rod 402, providing continuous pressure to the locking rod 403. The clamping force ensures that the clamping rod 403 and the clamping slot 203 are tightly engaged, thereby firmly fixing the mounting bracket 3 inside the connecting pipe 2, and positioning the bottom spiral fin 301 inside the pipe body 1. During equipment operation, when the fluid in the pipe body 1 flows through the spiral fin 301, it is guided by its spiral shape to generate spiral flow. The spiral surface of the spiral fin 301 pushes the fluid to form turbulence, destroying the boundary layer of the inner wall of the pipe, reducing thermal resistance, and enhancing the heat exchange between the fluid inside the pipe and the pipe wall. At the same time, the mounting bracket 3 secures the spiral fin 301 through a rigid connection. 1. Maintain stability under fluid impact and avoid vibration displacement. When disassembly and maintenance are required, pull up the rotating rod 402 to disengage the locking rod 403 from the slot 203. Then, rotate the rotating rod 402 in the opposite direction to move the locking rod 403 to the through slot 202. Afterward, the elastic restoring force of the compression spring 404 assists the rotating rod 402 to move down, which can quickly separate the mounting bracket 3 from the connecting pipe 2 and realize the convenient disassembly of the spiral fin 301. The corrugated heat-conducting ring 5 and the corrugated heat-conducting plate 6 on the outside of the pipe body 1 form a three-dimensional extended surface. When heat is transferred from the fluid inside the pipe to the pipe wall, it is first radially conducted through the densely distributed network of the corrugated heat-conducting plate 6, increasing the cross-sectional area of ​​the heat flow channel. The corrugated design also disturbs the fluid boundary layer and enhances the convective heat transfer coefficient. The longitudinally arranged corrugated heat-conducting ring 5 further expands the axial heat transfer path and forms a multi-dimensional heat conduction network, which allows heat to spread rapidly to the entire outer surface. This structure not only increases the heat dissipation area through geometry, but also improves the surface heat transfer efficiency by utilizing the principle of fluid dynamics, realizing the efficient exchange of heat inside and outside the pipe.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An internally finned heat transfer tube with a fixing structure, comprising a tube body (1), characterized in that: The inner side of the tube (1) is integrally formed with micro-straight ribs (101); The top end of the tube body (1) is fixedly connected to a connecting tube (2), and the inner side of the connecting tube (2) is fixedly connected to two docking plates (201). The top of the docking plate (201) is provided with a through groove (202) and two slots (203) are provided on the top of the docking plate (201).

2. The internally toothed heat transfer tube with a fixed structure according to claim 1, characterized in that: The inner side of the connecting pipe (2) is fixedly connected to the mounting bracket (3).

3. The internally toothed heat transfer tube with a fixed structure according to claim 2, characterized in that: The bottom of the mounting bracket (3) is fixedly connected to a spiral fin (301).

4. The internally toothed heat transfer tube with a fixed structure according to claim 3, characterized in that: The top of the mounting bracket (3) is fixedly connected to two mounting cylinders (4), and the interior of the mounting cylinders (4) is provided with mounting grooves (401).

5. A heat transfer tube with a fixed structure and internally reinforced teeth according to claim 4, characterized in that: The inner cavity of the mounting groove (401) is movably connected to a rotating rod (402), the top end of which passes through the mounting cylinder (4) and extends above the docking plate (201).

6. A heat transfer tube with internally reinforced teeth and a fixed structure according to claim 5, characterized in that: Two locking rods (403) are fixedly connected to the outside of the rotating rod (402). The locking rods (403) are engaged with the locking groove (203). A compression spring (404) is sleeved on the outside of the rotating rod (402). The compression spring (404) is located in the inner cavity of the mounting groove (401).

7. The internally toothed heat transfer tube with a fixed structure according to claim 1, characterized in that: A corrugated heat-conducting ring (5) is fixedly connected to the outside of the tube body (1), and the corrugated heat-conducting ring (5) is arranged sequentially from top to bottom. Eight corrugated heat-conducting plates (6) are embedded in the inner side of the corrugated heat-conducting ring (5), and the corrugated heat-conducting plates (6) are evenly distributed.

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