A chain heat transfer device

Abstract

This invention proposes a chain-type heat transfer device, relating to the field of metallurgical equipment technology. The chain-type heat transfer device includes multiple heat transfer chain segments, each segment comprising two heat conduction rollers and two inner chain plates. The two inner chain plates are arranged in parallel and spaced apart. The two heat conduction rollers are arranged side-by-side between the two inner chain plates. Both ends of each heat conduction roller pass through the two inner chain plates and are hinged to them. Adjacent heat transfer chain segments are connected by two outer chain plates, with both ends of the outer chain plates located outside the inner chain plates of the adjacent heat transfer chain segments. The ends of each heat conduction roller are hinged to the outer chain plates. Each heat conduction roller is hollow and forms a medium cavity. At least one end of each heat conduction roller is provided with a medium guiding structure, which guides the heat transfer medium into the medium cavity for heat exchange. The chain-type heat transfer device proposed in this invention has excellent heat transfer performance for curved objects.

Description

Technical Field

[0001] This invention relates to the field of metallurgical equipment technology, and in particular to a chain-type heat transfer device. Background Technology

[0002] In metallurgical production, it is often necessary to heat or cool rolled products and steel coils. During heating and cooling, heat needs to be rapidly transferred from one medium to another; achieving efficient heat transfer is crucial for ensuring smooth production. Existing heating or cooling devices typically transfer heat through the surface of a planar object, which is usually in a static state. When using existing devices to heat or cool curved surfaces or surfaces with relative motion, the heat transfer effect is often poor, impacting both production efficiency and product quality.

[0003] In view of this, based on years of experience in production and design in this and related fields, the inventor has designed a chain heat transfer device through repeated experiments in order to solve the problems existing in the prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a chain-type heat transfer device that has a good heat transfer effect on curved objects.

[0005] To achieve the above objectives, the present invention proposes a chain-type heat transfer device, wherein the chain-type heat transfer device includes multiple heat transfer chain segments, each heat transfer chain segment includes two heat conduction rollers and two inner chain plates, the two inner chain plates are arranged in parallel and spaced apart, the two heat conduction rollers are arranged side by side between the two inner chain plates, the two ends of each heat conduction roller pass through the two inner chain plates respectively and are hinged to the inner chain plates, two adjacent heat transfer chain segments are connected by two outer chain plates, the two ends of the outer chain plates are respectively located outside the inner chain plates of the two adjacent heat transfer chain segments, the ends of each heat conduction roller are hinged to the outer chain plates, each heat conduction roller is hollow inside and forms a medium cavity, at least one end of each heat conduction roller is provided with a medium guiding structure, the medium guiding structure guides the heat transfer medium into the medium cavity for heat exchange.

[0006] Compared with the prior art, the present invention has the following features and advantages:

[0007] The chain-type heat transfer device proposed in this invention uses multiple heat transfer chain segments to form a flexible chain structure similar to a traditional roller chain. Adjacent heat transfer chain segments can oscillate relative to each other, allowing the flexible chain structure to wrap around the curved surface of the object to be heated or cooled. Once the entire flexible chain structure is in contact with the outer surface of the object's curved surface, heat conduction heats or cools the surface. This not only adapts to different curved surface shapes but also ensures good heat transfer performance for the object. Simultaneously, the heat conduction rollers in each heat transfer chain segment are in the form of rollers. By tensioning the chain heat transfer device, relative movement between the object to be heated or cooled and the heat conduction rollers is allowed. This not only ensures uniform heat transfer but also effectively meets the heating or cooling needs of curved surfaces with relative movement. Attached Figure Description

[0008] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0009] Figure 1 This is a schematic diagram of the chain heat transfer device proposed in this invention;

[0010] Figure 2 This is a schematic diagram of the heat transfer chain assembly in this invention;

[0011] Figure 3 This is a cross-sectional view of the chain heat transfer device proposed in this invention.

[0012] Explanation of reference numerals in the attached figures

[0013] 100. Chain heat transfer device; 10. Heat transfer chain link assembly;

[0014] 11. Heat transfer roller; 111. Medium cavity;

[0015] 12. Inner link plate; 13. Outer link plate;

[0016] 14. Medium flow guiding structure; 141. Oil inlet pipe;

[0017] 142. Oil return cover; 1421. Oil return chamber;

[0018] 1422. Oil return port; 143. Connecting pipeline;

[0019] 15. Pressure plate; 16. First bushing;

[0020] 17. Second bushing; 18. Rotary seal. Detailed Implementation

[0021] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, and these should all be considered to fall within the scope of the invention.

[0022] like Figure 1 , Figure 2 As shown, the present invention proposes a chain heat transfer device 100, which includes multiple heat transfer chain segments 10. Each heat transfer chain segment 10 includes two heat conduction rollers 11 and two inner chain plates 12. The two inner chain plates 12 are arranged in parallel and spaced apart. The two heat conduction rollers 11 are arranged side by side between the two inner chain plates 12. The two ends of each heat conduction roller 11 pass through the two inner chain plates 12 and are hinged to the inner chain plates 12. Two adjacent heat transfer chain segments 10 are connected by two outer chain plates 13. The two ends of the outer chain plates 13 are located outside the inner chain plates 12 of the two adjacent heat transfer chain segments 10. The ends of each heat conduction roller 11 are hinged to the outer chain plates 13. The interior of each heat conduction roller 11 is hollow and forms a medium cavity 111. At least one end of each heat conduction roller 11 is provided with a medium guiding structure 14, which guides the heat transfer medium into the medium cavity 111 for heat exchange.

[0023] The chain-type heat transfer device 100 proposed in this invention comprises multiple heat transfer chain segments 10 forming a flexible chain structure similar to a traditional roller chain. Adjacent heat transfer chain segments 10 can oscillate relative to each other, allowing the flexible chain structure to wrap around the curved surface of the object to be heated or cooled. When the entire flexible chain structure is attached to the outer surface of the curved surface, the curved surface is heated or cooled through heat conduction. This not only adapts to different curved surface shapes but also provides excellent heat transfer for the object. Simultaneously, the heat conduction rollers 11 of each heat transfer chain segment 10 are in the form of rollers. By tensioning the chain-type heat transfer device 100 with a certain tension, relative movement between the object to be heated or cooled and the heat conduction rollers 11 is allowed. This not only ensures uniform heat transfer but also effectively meets the heating or cooling needs of curved surfaces with relative movement, particularly providing excellent heating or cooling effects for hot-rolled steel coils.

[0024] The chain-type heat transfer device 100 proposed in this invention forms a flexible chain structure similar to a traditional roller chain through multiple heat transfer chain links 10. The chain pitch and the diameter of the heat conduction roller 11 can be designed according to the radius of curvature of the object to be wrapped (i.e., the object to be heated or cooled) to adapt to different curved surface shapes of the object. At the same time, the width of the heat conduction roller 11 can also be designed according to the heating range of the object to be wrapped.

[0025] In an optional embodiment of the present invention, a plurality of heat transfer chain segments 10 are arranged in sequence, and each heat transfer roller 11 of each heat transfer chain segment 10 is also arranged in sequence. The outer chain plate 13 connecting two heat transfer chain segments 10 is connected between adjacent heat transfer rollers 11, thereby forming a flexible structure similar to a transmission roller chain, so that the two heat transfer chain segments 10 can swing at a certain angle.

[0026] In an optional embodiment of the present invention, the heat transfer medium enters the medium cavity 111 through the medium guiding structure 14. The heat transfer medium can be air, steam, or circulating oil. In actual operation, different heat transfer media can be selected according to different heating or cooling requirements.

[0027] In an optional embodiment of the present invention, the heat transfer medium is air or steam, the medium guiding structure 14 is a medium introduction structure, and the heat conduction roller 11 has multiple divergence channels, one end of each divergence channel opening into the inner wall of the heat conduction roller 11, and the other end of each divergence channel opening into the outer wall of the heat conduction roller 11. With this structure, air or steam can flow directly into the air through the divergence channels without the need to recover the heat transfer medium.

[0028] In one alternative implementation, the heat transfer medium can be hot air to heat the object to be wrapped, or cold air to cool the object to be wrapped.

[0029] In another optional embodiment of the present invention, the medium guiding structure 14 is a medium inlet structure, and the other end of the heat conduction roller 11 is provided with a medium outlet structure. Using the above structure, the heat transfer medium can be recovered through the medium outlet structure, which is suitable for situations requiring the recovery of the heat transfer medium.

[0030] In another optional embodiment of the invention, such as Figure 3As shown, the medium guiding structure 14 includes an oil inlet pipe 141 and an oil return cover 142. The oil return cover 142 is fixed on the outer chain plate 13. The inside of the oil return cover 142 is hollow and forms an oil return cavity 1421. The oil return cavity 1421 is connected to the medium cavity 111 of the heat conduction roller 11. One end of the oil inlet pipe 141 is the oil inlet end, and the other end of the oil inlet pipe 141 is the oil outlet end. The oil outlet end is sealed and penetrates the oil return cover 142 and extends into the medium cavity 111. An oil return port 1422 connected to the oil return cavity is opened on the outer wall of the oil return cover. With the above structure, the heat transfer medium is introduced through the oil inlet pipe 141 and discharged through the oil return cover 142. The oil inlet pipe 141 extends into the medium cavity 111 of the heat transfer roller 11. The heat transfer medium enters the heat transfer roller 11 through the oil inlet pipe 141, heats or cools the inner surface of the heat transfer roller 11, and then flows back out from the same end of the heat transfer roller 11 and enters the oil return cover 142. The functions of introducing and discharging the heat transfer medium are both concentrated at the same end of the heat transfer roller 11, which greatly saves the space occupied by the chain heat transfer device 100.

[0031] In an optional example of this embodiment, two oil return covers 142 on the same outer chain plate 13 are connected by a connecting pipe 143, and an oil return port 1422 is provided on only one of the oil return covers 142.

[0032] In an optional embodiment of this implementation, the oil inlet pipe 141 and the oil return cover 142 are welded together as a whole.

[0033] In an optional embodiment, the length of the oil inlet pipe 141 extending into the medium cavity 111 is greater than half the total length of the medium cavity 111, in order to ensure the circulation and flow of the heat transfer medium within the medium cavity 111.

[0034] In an optional example of this embodiment, the oil return cover 142 is provided with an outer flange for connection. The outer flange is fixedly connected to the outer chain plate 13 by a plurality of bolts. The end of the heat conduction roller 11 is open and the sealed end of the heat conduction roller 11 extends into the oil return chamber 1421 after passing through the outer chain plate 13.

[0035] In an optional example, the outer chain plate 13 is embedded with a second bushing 17, and the end of the heat transfer roller 11 is hinged to the outer chain plate 13 through the second bushing 17. A rotary seal 18 is also provided between the outer chain plate 13 and the heat transfer roller 11 to ensure a sealed fit between the heat transfer roller 11 and the outer chain plate 13 and prevent leakage of the heat transfer medium.

[0036] In an optional example of this embodiment, a pressure plate 15 is provided at the other end of the heat conduction roller 11. The pressure plate 15 is detachably connected to the outer chain plate 13 and restricts the axial movement of the heat conduction roller 11.

[0037] In an optional embodiment, rotary joints are installed at the oil inlet end of the oil inlet pipe 141 and the oil return port 1422 of the oil return cover 142, respectively, to accommodate the relative oscillation between the oil inlet end and the oil return port 1422 of the chain heat transfer device 100 as it conforms to the curved surface.

[0038] In an optional embodiment of the invention, the inner chain plate 12 and the heat conduction roller 11 are hinged together by a first bushing 16. Preferably, the inner chain plate 12 is embedded with the first bushing 16, and the end of the heat conduction roller 11 is rotatably engaged with the inner chain plate 12 through the first bushing 16.

[0039] Please refer to Figure 1 , Figure 2 and Figure 3 The specific implementation of the chain heat transfer device 100 proposed in this invention will now be described in detail with reference to an embodiment.

[0040] In this embodiment, the outer chain plate 13 is hinged to the heat conduction roller 11 through the embedded second bushing 17, and the inner chain plate 12 is hinged to the heat conduction roller 11 through the embedded first bearing, so that relative swinging can be realized; one end of the heat conduction roller 11 is provided with a medium guiding structure 14, and the other end of the heat conduction roller 11 is provided with a pressure plate 15, which is used to axially constrain the heat conduction roller 11.

[0041] Taking circulating oil as the heat transfer medium as an example, the medium guiding structure 14 includes an oil inlet pipe 141 and an oil return cover 142. The oil inlet pipe 141 and the oil return cover 142 are welded together as a whole and are connected to the outer chain plate 13 by bolts through the outer flange of the oil return cover 142. The oil inlet pipe 141 extends into the medium cavity 111 of the heat conduction roller 11. The circulating oil medium enters the heat conduction roller 11 through the oil inlet pipe 141. After heating the inner surface of the heat conduction roller 11, the circulating oil medium flows back and exits from the same side, entering the oil return cover 142. The oil return covers 142 on the same outer chain plate 13 are designed in pairs. The oil return cavities 1421 of the two oil return covers 142 are connected by a connecting pipe 143 and use a single oil outlet to collect the returned oil. The oil inlet end of the oil inlet pipe 141 and the oil outlet of the oil return cover 142 are equipped with auxiliary accessory rotary joints (not shown in the figure) to accommodate the relative oscillation between the oil inlet end of the oil inlet pipe 141 and the oil outlet of the oil return cover 142 after the flexible chain heat transfer device 100 fits against the curved surface. At the same time, to prevent leakage, a rotary seal 18 is provided between the outer chain plate 13 and the heat transfer roller 11.

[0042] The detailed explanations of the above embodiments are intended only to explain the present invention so as to facilitate a better understanding of the present invention. However, these descriptions should not be construed as limiting the present invention for any reason. In particular, the various features described in different embodiments can be arbitrarily combined with each other to form other embodiments. Unless there is an explicit description to the contrary, these features should be understood to be applicable to any embodiment, and not limited to the described embodiments.

Claims

1. A chain-type heat transfer device, characterized in that, The chain-type heat transfer device includes multiple heat transfer chain segments. Each heat transfer chain segment includes two heat transfer rollers and two inner chain plates. The two inner chain plates are arranged in parallel and spaced apart. The two heat transfer rollers are arranged side by side between the two inner chain plates. The two ends of each heat transfer roller pass through the two inner chain plates and are hinged to them. Two adjacent heat transfer chain segments are connected by two outer chain plates. The two ends of the outer chain plates are located outside the inner chain plates of the two adjacent heat transfer chain segments. The ends of each heat transfer roller are hinged to the outer chain plates. The interior of each heat transfer roller is hollow and forms a medium cavity. One end of each heat transfer roller is provided with a medium guiding structure, which guides the heat transfer medium into the medium cavity for heat exchange.

2. The chain heat transfer device as described in claim 1, characterized in that, The outer chain plate connecting the two heat transfer chain segments is connected between adjacent heat transfer rollers.

3. The chain heat transfer device as described in claim 1, characterized in that, The heat transfer medium is air, steam, or circulating oil.

4. The chain heat transfer device as described in claim 3, characterized in that, The heat transfer medium is air or steam, and the heat conduction roller is provided with multiple divergence channels. One end of each divergence channel opens into the inner wall of the heat conduction roller, and the other end of each divergence channel opens into the outer wall of the heat conduction roller.

5. The chain heat transfer device as described in claim 1 or 3, characterized in that, The medium guiding structure is a medium inlet structure, and the other end of the heat conduction roller is provided with a medium outlet structure.

6. The chain heat transfer device as described in claim 1 or 3, characterized in that, The medium guiding structure includes an oil inlet pipe and an oil return cover. The oil return cover is fixed to the outer chain plate. The inside of the oil return cover is hollow and forms an oil return cavity. The oil return cavity is connected to the medium cavity of the heat conduction roller. One end of the oil inlet pipe is the oil inlet end, and the other end of the oil inlet pipe is the oil outlet end. The oil outlet end is sealed through the oil return cover and extends into the medium cavity. An oil return port connected to the oil return cavity is opened on the outer wall of the oil return cover.

7. The chain heat transfer device as described in claim 6, characterized in that, The oil return cover is provided with an outer flange for connection. The outer flange is fixedly connected to the outer chain plate by multiple bolts. The end of the heat conduction roller is open and its seal extends through the outer chain plate and into the oil return cavity.

8. The chain heat transfer device as described in claim 6, characterized in that, A pressure plate is provided at the other end of the heat conduction roller. The pressure plate is detachably connected to the outer chain plate and restricts the axial movement of the heat conduction roller.

9. The chain heat transfer device as described in claim 6, characterized in that, Rotary joints are installed at the oil inlet end of the oil inlet pipe and at the oil return port of the oil return cover, respectively.

10. The chain heat transfer device as described in claim 1, characterized in that, The inner chain plate and the heat conduction roller are hinged together by a bushing.

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