Chain type heat transfer device

Abstract

The invention provides a chain type heat transfer device, and relates to the technical field of metallurgical equipment, the chain type heat transfer device comprises a plurality of heat transfer chain link groups, each heat transfer chain link group comprises two heat conduction rollers and two inner chain plates, the two inner chain plates are arranged in parallel at intervals, and the two heat conduction rollers are arranged between the two inner chain plates side by side; the two ends of each heat conduction roller penetrate through the two inner chain plates respectively and are hinged to the inner chain plates, every two adjacent heat conduction chain links are connected through two outer chain plates, the two ends of each outer chain plate are located on the outer sides of the inner chain plates of every two adjacent heat conduction chain link sets respectively, and the end of each heat conduction roller is hinged to the corresponding outer chain plate. The interior of 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 flow guide structure, and the medium flow guide structures guide heat transfer media into the medium cavities for heat exchange. The chain type heat transfer device provided by the invention has a good heat transfer effect on curved-surface-shaped objects.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical equipment, and in particular to a chain heat transfer device. Background Art

[0002] In the process of metallurgical production, it is often necessary to heat or cool rolled products and steel coils. During the heating and cooling processes, heat needs to be quickly transferred from one medium to another. How to achieve efficient heat transfer is the key to ensuring the smooth progress of the production process. Existing heating devices or cooling devices usually transfer heat through the surface of a planar object, and the heated or cooled objects are mostly in a stationary state. When using existing heating devices or cooling devices to heat or cool the surface of a curved surface or an object with relative motion, the heat transfer effect is often poor, which not only affects production efficiency, but also seriously affects product quality.

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

[0004] The object of the present invention is to provide a chain heat transfer device which has a good heat transfer effect on a curved surface object.

[0005] To achieve the above object, the present invention provides a chain heat transfer device, wherein the chain heat transfer device includes a plurality of heat transfer link groups, each of the heat transfer link groups 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 respectively penetrate the two inner chain plates and are hinged to the inner chain plates, two adjacent heat transfer link groups are connected by two outer chain plates, the two ends of the outer chain plates are respectively located on the outside of the inner chain plates of the two adjacent heat transfer link groups, the end of each heat transfer roller is hinged to the outer chain plates, the interior of each heat transfer roller is hollow and forms a medium cavity, at least one end of each heat transfer roller is provided with a medium guide structure, the medium guide 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 characteristics and advantages:

[0007] The chain heat transfer device proposed in the present invention is a flexible chain structure similar to a traditional roller chain formed by multiple heat transfer chain link groups. Two adjacent heat transfer chain link groups can swing relative to each other, so that the flexible chain structure can wrap 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 of the object, the curved surface is heated or cooled by heat conduction, which can not only adapt to different curved surface shapes, but also ensure that the chain heat transfer device has a good heat transfer effect on the object to be heated or cooled. At the same time, the heat transfer rollers of each heat transfer chain link group are in the form of rollers. After the chain heat transfer device is tightened by a certain tension, the object to be heated or cooled and the heat transfer roller can be allowed to move relative to each other, which not only ensures uniform heat transfer, but also effectively meets the heating or cooling requirements of the object with a curved surface and relative movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0009] Figure 1 This is a schematic diagram of the structure of the chain heat transfer device proposed by the present invention;

[0010] Figure 2 is a schematic structural diagram of the heat transfer link group in the present invention;

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

[0012] Description of Reference Numerals

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

[0014] 11. heat transfer roller; 111. medium chamber;

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

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

[0017] 142, oil return cover; 1421, oil return chamber;

[0018] 1422, oil return port; 143, connecting pipeline;

[0019] 15. Pressing plate; 16. First shaft sleeve;

[0020] 17. Second shaft sleeve; 18. Rotating seal. DETAILED DESCRIPTION

[0021] The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should all be considered to belong to the scope of the present invention.

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

[0023] The chain heat transfer device 100 proposed in the present invention is a flexible chain structure similar to a traditional roller chain formed by a plurality of heat transfer chain link groups 10. Two adjacent heat transfer chain link groups 10 can swing relative to each other, so that the flexible chain structure can wrap 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 of the object, the curved surface is heated or cooled by heat conduction, which can not only adapt to different curved surface shapes, but also enable the chain heat transfer device 100 to have a good heat transfer effect on the object to be heated or cooled. At the same time, the heat transfer rollers 11 of each heat transfer chain link group 10 are in the form of rollers. After the chain heat transfer device 100 is tightened by a certain tension, the object to be heated or cooled and the heat transfer rollers 11 can be allowed to move relative to each other, which not only ensures uniform heat transfer, but also effectively meets the heating or cooling requirements of objects with curved surfaces and relative movement, especially has a good heating or cooling effect on hot-rolled steel coils.

[0024] The chain heat transfer device 100 proposed in the present invention has a flexible chain structure similar to a conventional roller chain, formed by a plurality of heat transfer chain link groups 10. The chain pitch and the diameter of the heat transfer roller 11 can be designed according to the curvature radius of the object to be wrapped (i.e., the object to be heated or cooled) to adapt to the different curved shapes of the object to be wrapped. At the same time, the width of the heat transfer 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 link groups 10 are arranged in sequence, and the heat transfer rollers 11 of each heat transfer link group 10 are also arranged in sequence. The outer link plate 13 connecting two heat transfer link groups 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 link groups 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 guide structure 14. The heat transfer medium may be air, steam or circulating oil. In actual work, different heat transfer media may be selected according to different requirements for heating or cooling.

[0027] In an optional embodiment of the present invention, the heat transfer medium is air or steam, the medium guide structure 14 is a medium introduction structure, and a plurality of diverging channels are provided on the heat transfer roller 11, one end of each diverging channel opens to the inner wall of the heat transfer roller 11, and the other end of each diverging channel opens to the outer wall of the heat transfer roller 11. With the above structure, air or steam can flow directly into the air through the diverging channel without recovering the heat transfer medium.

[0028] In an optional embodiment, the heat transfer medium may be hot air to heat the object to be wrapped, or may be cold air to cool the object to be wrapped.

[0029] In another optional embodiment of the present invention, the medium guide structure 14 is a medium introduction structure, and a medium outlet structure is provided at the other end of the heat transfer roller 11. With the above structure, the heat transfer medium can be recovered through the medium outlet structure, which is suitable for the situation where the heat transfer medium needs to be recovered.

[0030] In another optional embodiment of the present invention, Figure 3As shown, the medium flow 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 link plate 13. The interior of the oil return cover 142 is hollow and forms an oil return chamber 1421. The oil return chamber 1421 is connected to the medium chamber 111 of the heat transfer 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 seal passes through the oil return cover 142 and extends into the medium chamber 111. An oil return port 1422 connected to the oil return chamber 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 is 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 and discharged from the same end of the heat transfer roller 11 to enter the oil return cover 142. The heat transfer medium introduction function and the heat transfer medium discharge function are 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, the two oil return covers 142 on the same outer link plate 13 are connected via a connecting pipe 143 , and the oil return port 1422 is only provided on one of the oil return covers 142 .

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

[0033] In an optional example of this embodiment, the length of the oil inlet pipe 141 extending into the medium cavity 111 is greater than half of the total length of the medium cavity 111 to ensure the circulation and flow of the heat transfer medium in 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, and the outer flange is fixedly connected to the outer link plate 13 by multiple bolts. The end of the heat transfer roller 11 is open and the end seal of the heat transfer roller 11 passes through the outer link plate 13 and then extends into the oil return chamber 1421.

[0035] In an optional example, a second sleeve 17 is embedded in the outer link plate 13, and the end of the heat transfer roller 11 is hinged to the outer link plate 13 through the second sleeve 17. A rotating seal 18 is also provided between the outer link plate 13 and the heat transfer roller 11 to ensure the sealing fit between the heat transfer roller 11 and the outer link plate 13 to 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 transfer roller 11 . The pressure plate 15 is detachably connected to the outer link plate 13 and limits the axial movement of the heat transfer roller 11 .

[0037] In an optional example of this embodiment, rotating joints are respectively installed at the oil inlet end of the oil inlet pipe 141 and the oil return port 1422 of the oil return cover 142 to accommodate the relative swinging of the chain heat transfer device 100 between the oil inlet end and the oil return port 1422 in order to fit the curved surface.

[0038] In an optional example of the present invention, the inner link plate 12 and the heat transfer roller 11 are hinged via a first sleeve 16. Preferably, the inner link plate 12 is embedded with the first sleeve 16, and the end of the heat transfer roller 11 is rotatably matched with the inner link plate 12 via the first sleeve 16.

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

[0040] In this embodiment, the outer link plate 13 is hinged to the heat transfer roller 11 through the embedded second sleeve 17, and the inner link plate 12 is hinged to the heat transfer roller 11 through the embedded first bearing, so that relative swing can be achieved; a medium guide structure 14 is provided at one end of the heat transfer roller 11, and a pressure plate 15 is provided at the other end of the heat transfer roller 11, and the pressure plate 15 is used to axially constrain the heat transfer roller 11.

[0041] Taking the heat transfer medium as a circulating oil medium as an example, the medium guide 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 into a whole, and the outer flange of the oil return cover 142 is connected to the outer link plate 13 by bolts. The oil inlet pipe 141 extends into the medium cavity 111 of the heat transfer roller 11, and the circulating oil medium enters the heat transfer roller 11 through the oil inlet pipe 141. After the circulating oil medium heats the inner surface of the heat transfer roller 11, it is led out by the same side reflux and enters the oil return cover 142. The oil return covers 142 on the same outer link plate 13 are designed in pairs, and the oil return chambers 1421 of the two oil return covers 142 are connected through a connecting pipe 143 and use an oil outlet to collect the return 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 accessories, a rotating joint (not shown in the figure), to adapt to the relative swing 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 the curved surface. At the same time, in order to prevent leakage, a rotating seal 18 is provided between the outer chain plate 13 and the heat transfer roller 11.

[0042] The detailed explanation of the above-mentioned embodiments is only intended to explain the present invention so as to facilitate a better understanding of the present invention. However, these descriptions cannot be interpreted as limitations on the present invention for any reason. In particular, the various features described in different embodiments may also be arbitrarily combined with each other to form other embodiments. Unless there is a clear description to the contrary, these features should be understood to be applicable to any embodiment and are not limited to the described embodiments.

Claims

1. A chain heat transfer device, characterized in that: The chain heat transfer device comprises a plurality of heat transfer link groups, each of which comprises 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. Two ends of each heat transfer roller respectively penetrate the two inner chain plates and are hinged to the inner chain plates. Two adjacent heat transfer links are connected through two outer chain plates. Two ends of the outer chain plates are respectively located outside the inner chain plates of two adjacent heat transfer link groups. The end of each heat transfer roller is hinged to the outer chain plates. The interior of each heat transfer roller is hollow and forms a medium cavity. At least one end of each heat transfer roller is provided with a medium guide structure. The medium guide structure guides the heat transfer medium into the medium cavity for heat exchange.

2. The chain heat transfer device according to claim 1, characterized in that: The outer link plate connecting two heat transfer link groups is connected between adjacent heat transfer rollers.

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

4. The chain heat transfer device according to claim 3, characterized in that: The heat transfer medium is air or steam. The heat transfer roller is provided with a plurality of diffusion channels. One end of each diffusion channel opens to the inner wall of the heat transfer roller, and the other end of each diffusion channel opens to the outer wall of the heat transfer roller.

5. The chain heat transfer device according to claim 1 or 3, characterized in that: The medium flow guiding structure is a medium introduction structure, and the other end of the heat transfer roller is provided with a medium outlet structure.

6. The chain heat transfer device according to claim 1 or 3, characterized in that: The medium flow guiding structure includes an oil inlet pipe and an oil return hood, the oil return hood is fixedly arranged on the outer chain plate, the interior of the oil return hood is hollow and forms an oil return cavity, the oil return cavity is communicated with the medium cavity of the heat transfer roller, one end of the oil inlet pipe is an oil inlet end, the other end of the oil inlet pipe is an oil outlet end, the oil outlet end seal passes through the oil return hood and extends into the medium cavity, and an oil return port communicated with the oil return cavity is opened on the outer wall of the oil return hood.

7. The chain heat transfer device according to claim 6, characterized in that: The oil return cover is provided with an outer flange for connection, and the outer flange is fixedly connected to the outer link plate by a plurality of bolts. The end of the heat transfer roller is open and its seal passes through the outer link plate and then extends into the oil return cavity.

8. The chain heat transfer device according to claim 6, characterized in that: A pressing plate is disposed at the other end of the heat transfer roller. The pressing plate is detachably connected to the outer link plate and limits the axial movement of the heat transfer roller.

9. The chain heat transfer device according to claim 6, characterized in that: A rotary joint is installed at the oil inlet end of the oil inlet pipe and the oil return port of the oil return cover respectively.

10. The chain heat transfer device according to claim 1, characterized in that: The inner link plate and the heat transfer roller are hinged via a shaft sleeve.

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