Heat exchanger

Abstract

A heat exchanger comprises a heat exchange device, and a first air outlet and a second air outlet are formed in the heat exchange device. The pipeline mechanism is connected to the heat exchange device and comprises a first pipeline and a second pipeline, the first air outlet is connected to one end of the first pipeline, and the second air outlet is connected to one end of the second pipeline; the second pipeline is further connected with an air acceleration device. The grinding fan main mill and the sheet material feeding device are connected to the pipeline mechanism, the flour mill main mill is connected with the sheet material feeding device through a sheet material conveying pipeline, a sealing cover is arranged on the sheet material feeding device, the other end of the first pipeline is connected to the grinding fan main mill, the other end of the second pipeline is connected to the sheet material feeding device, and the sheet material conveying pipeline is connected to the sheet material feeding device. When the heat exchanger conducts heat exchange on the flour mill, the heat exchange efficiency is effectively improved, and the heat exchange effect is guaranteed.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, and in particular to a heat exchanger. Background Technology

[0002] With economic development and advancements in the field of heat exchangers, the application of heat exchangers is becoming increasingly widespread. The principle of heat exchangers is to transfer heat from one medium to another to achieve the heat exchange effect. A heat exchanger can be used as a standalone device or as a component of a certain process equipment.

[0003] In the existing technology, the heat exchanger used in the grinding mill uses copper pipes to cool aluminum sheets through cold water, thereby exchanging heat. The cooled air after heat exchange is then connected to the main mill and the sheet material feeding device of the grinding mill through an external pipe at the air outlet, thus achieving bidirectional cooling. However, currently, the cold air entering the sheet material feeding device can only exchange heat within the sheet material feeding device, resulting in low heat exchange efficiency and poor heat exchange effect of the heat exchanger. Utility Model Content

[0004] This utility model provides a heat exchanger that effectively improves heat exchange efficiency and ensures heat exchange effect when performing heat exchange on a grinding mill.

[0005] To achieve the aforementioned objectives, this application adopts the following technical solution:

[0006] A heat exchanger, characterized in that it comprises:

[0007] A heat exchange device, wherein the heat exchange device is provided with a first air outlet and a second air outlet;

[0008] A piping mechanism connected to the heat exchange device includes a first pipe and a second pipe. The first air outlet is connected to one end of the first pipe, and the second air outlet is connected to one end of the second pipe. An air acceleration device is also connected to the second pipe.

[0009] The main mill of the grinding mill and the flake feeding device are connected to the pipeline mechanism. The main mill of the grinding mill and the flake feeding device are connected through the flake conveying pipeline. The flake feeding device is equipped with a sealing cover. The other end of the first pipeline is connected to the main mill of the grinding mill, and the other end of the second pipeline is connected to the flake feeding device.

[0010] In some alternative embodiments, a flange mechanism is provided at the pipe body of the second pipe, and a connection hole is provided at each of the opposite ends of the air acceleration device. The inner side of the connection hole is provided with an internal thread, and the opposite ends of the air acceleration device cooperate with the flange mechanism through the connection hole.

[0011] In some alternative embodiments, both the first pipe and the second pipe are connected to a one-way check valve.

[0012] In some alternative embodiments, the one-way check valve includes a valve body and a connecting mechanism connected to opposite ends of the valve body.

[0013] In some alternative embodiments, the valve body includes a valve housing, a compression spring disposed inside the valve housing, a valve abutting against the compression spring, and a limiting ring abutting against the outside of the valve, wherein the compression spring abuts against the inside of the valve.

[0014] In some alternative embodiments, the inner wall of the valve housing is provided with a limiting strip, the limiting strip is L-shaped, the bottom of the limiting strip is provided with a first limiting groove, and one end of the compression spring is disposed inside the first limiting groove.

[0015] In some alternative embodiments, at least three sets of limiting blocks are provided at intervals on the outer side of the valve, each set of limiting blocks includes two limiting blocks, and the two limiting blocks in each set are combined to form a second limiting groove, which cooperates with the limiting strip.

[0016] In some alternative implementations, the distance between two adjacent sets of the limiting blocks is L1, and the width of each limiting block is L2, where L2 < 1 / 2L1.

[0017] The heat exchanger provided in this application is suitable not only for bidirectional heat exchange in dust-related equipment, but also for bidirectional heat exchange in gas-related and paint-related equipment.

[0018] The heat exchanger provided in this application has the following beneficial effects:

[0019] In the technical solution adopted in this application, the first air outlet of the heat exchange device is connected to one end of the first pipe in the pipe structure, and the second air outlet is connected to one end of the second pipe. An air acceleration device is also connected to the second pipe. The other end of the first pipe is connected to the main mill of the grinding machine, and the other end of the second pipe is connected to the flake feeding device. The main mill of the grinding machine and the flake feeding device are connected through a flake conveying pipe. The flake feeding device is also equipped with a sealing cover. With the cooperation of the air acceleration device, the sealing cover on the flake feeding device, and the flake conveying pipe, when the heat exchanger is exchanging heat with the grinding machine, the cold air entering the flake feeding device can be cooled down, and the unused cold air can enter the main mill of the grinding machine for cooling, which effectively improves the heat exchange efficiency of the heat exchanger and ensures the heat exchange effect. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram illustrating a usage scenario of a heat exchanger according to this application;

[0022] Figure 2 yes Figure 1 Enlarged view of circle A shown;

[0023] Figure 3 This is a three-dimensional schematic diagram of an air acceleration device in a heat exchanger according to this application;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of a one-way check valve in a heat exchanger according to this application;

[0025] Figure 5 This is an exploded view of a valve body in a heat exchanger according to this application;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of a valve housing in a heat exchanger according to this application;

[0027] Figure 7 yes Figure 6 Enlarged view of circle B shown;

[0028] Figure 8 This is a schematic diagram of the cross-sectional structure of a valve in a heat exchanger according to this application.

[0029] Figure label:

[0030] 10. Heat exchange device; 10A. First air outlet; 10B. Second air outlet;

[0031] 20. Piping mechanism; 21. First pipe; 22. Second pipe; 221. Air acceleration device; 221A. Connecting hole; 222. Flange mechanism; 23. One-way check valve; 231. Valve body; 231A. Valve shell; 231B. Compression spring; 231C. Valve; 231D. Limiting ring; 231E. Limiting strip; 231E1. First limiting groove; 231F. Limiting block; 231F1. Second limiting groove; 232. Connecting mechanism;

[0032] 30. Main mill of grinding mill; 31. Flake material feeding device; 32. Flake material conveying pipeline; 33. Sealing cover. Detailed Implementation

[0033] The specific embodiments of this application are described below with reference to the accompanying drawings and examples. Through the content described in this specification, those skilled in the art can clearly and completely understand the technical solution, the technical problem solved, and the resulting technical effects of this application. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, for ease of description, only the parts related to this application are shown in the accompanying drawings.

[0034] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the contents described in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size should fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0035] The use of terms such as "first," "second," and "the" does not imply quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or units, but may also include steps or units not listed, or other steps or units inherent to such processes, methods, products, or devices. The terms "connected," "linked," and "coupled" used in this application are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.

[0036] It should also be noted that the longitudinal section corresponding to the embodiment of this application can be the section corresponding to the front view direction, the transverse section can be the section corresponding to the right view direction, and the horizontal section can be the section corresponding to the top view direction.

[0037] Furthermore, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] refer to Figure 1 , Figure 1 This is a schematic diagram illustrating a usage scenario of a heat exchanger according to this application. For example... Figure 1 As shown, a heat exchanger includes a heat exchange device 10, a pipeline mechanism 20 connected to the heat exchange device 10, a main mill of a grinding mill and a sheet material feeding device 31 connected to the pipeline mechanism 20. The main mill of the grinding mill 30 and the sheet material feeding device 31 are connected through a sheet material conveying pipeline 32. The sheet material feeding device 31 is provided with a sealing cover.

[0039] Here, the sheet feeding device 31 is equipped with a sealing cover, and a sealing strip is provided inside the sealing cover to achieve the sealing of the sheet feeding device 31 and prevent cold air from leaking from the sheet feeding device 31.

[0040] Continue to refer to Figure 1 The heat exchange device 10 is provided with a first air outlet 10A and a second air outlet 10B. The pipeline mechanism 20 includes a first pipeline 21 and a second pipeline 22. The first air outlet 10A is connected to one end of the first pipeline 21, and the other end of the first pipeline 21 is connected to the main mill of the grinding blower. The second air outlet 10B is connected to one end of the second pipeline 22, and the other end of the second pipeline 22 is connected to the sheet material feeding device 31.

[0041] Here, the heat exchange device 10 delivers cold air bidirectionally to the main mill of the grinding fan and the sheet material feeding device 31 through the first air outlet 10A, the second air outlet 10B, the first pipe 21 and the second pipe 22, so as to achieve bidirectional cooling and further achieve dual-channel cooling.

[0042] Continue to refer to Figure 1 Please refer to them together. Figure 2 and Figure 3 , Figure 2 yes Figure 1 The enlarged view of circle A shown. Figure 3 This is a three-dimensional schematic diagram of an air acceleration device 221 in a heat exchanger according to this application. Figure 1 , Figure 2 and Figure 3 As shown, both the first pipe 21 and the second pipe 22 are connected to a one-way check valve 23, and the second pipe 22 is also connected to an air acceleration device 221. The second pipe 22 is provided with a flange mechanism 222 at the pipe body position. Both ends of the air acceleration device 221 are provided with connection holes 221A. The inner side of the connection hole 221A is provided with internal thread. The two ends of the air acceleration device 221 cooperate with the flange mechanism 222 through the connection hole 221A to realize the connection between the air acceleration device 221 and the second pipe 22 by bolts.

[0043] Here, an air acceleration device 221 is connected to the second pipe 22 to accelerate the flow of cold air passing through the second pipe 22, forming a flow velocity difference with the cold air in the first pipe 21. This allows the cold air, after being cooled by the sheet material feeding device 31, to re-enter the main mill 30 of the grinding mill through the sheet material conveying pipe 32, perform initial cooling of the main mill 30, and then be discharged from the outlet of the main mill 30.

[0044] Here, the first air outlet 10A on the heat exchange device 10 is connected to one end of the first pipe 21 in the pipe structure 20, and the second air outlet 10B is connected to one end of the second pipe 22. The second pipe 22 is also connected to an air acceleration device 221. The other end of the first pipe 21 is connected to the main mill of the grinding machine, and the other end of the second pipe 22 is connected to the flake feeding device 31. The main mill 30 of the grinding mill and the flake feeding device 31 are connected through the flake conveying pipe 32. The flake feeding device 31 is also equipped with a sealing cover. With the cooperation of the air acceleration device 221, the sealing cover on the flake feeding device 31, and the flake conveying pipe 32, the cold air entering the flake feeding device 31 can enter the main mill of the grinding mill for cooling after the flake feeding device 31 is cooled. This effectively improves the heat exchange efficiency of the heat exchanger and ensures the heat exchange effect.

[0045] refer to Figure 4 and Figure 5 , Figure 4 This is a schematic cross-sectional view of the one-way check valve 23 in a heat exchanger according to this application. Figure 5 This is an exploded view of the valve body 231 in a heat exchanger according to this application. Figure 4 and Figure 5 As shown, the one-way check valve 23 includes a valve body 231 and a connecting mechanism 232 connected to opposite ends of the valve body 231. The valve body 231 includes a valve shell 231A, a compression spring 231B disposed inside the valve shell 231A, a valve 231C abutting against the compression spring 231B, and a limiting ring 231D abutting against the outside of the valve 231C. The compression spring 231B abuts against the inside of the valve 231C. In addition, the first pipe 21 and the second pipe 22 are respectively connected to the one-way check valve 23 through the connecting mechanism 232.

[0046] Here, the compression spring 231B abuts against the inside of the valve 231C, and the limiting ring 231D abuts against the outside of the valve 231C, so as to realize the elastic movement of the valve 231C, so that the valve 231C opens when cold air passes in the forward direction and remains closed when cold air passes in the reverse direction, preventing air backflow.

[0047] refer to Figure 6 and Figure 7 , Figure 6 This is a schematic cross-sectional view of the valve housing 231A in a heat exchanger according to this application. Figure 7 yes Figure 6 An enlarged view of circle B shown. (See diagram below.) Figure 6 and Figure 7As shown, the inner wall of the valve housing 231A is provided with a limiting strip 231E. The limiting strip 231E is L-shaped, and the bottom of the limiting strip 231E is also provided with a first limiting groove 231E1. One end of the compression spring 231B is located inside the first limiting groove 231E1.

[0048] Here, the stability of the compression spring 231B during operation is improved through the cooperation between the compression spring 231B and the first limiting groove 231E1.

[0049] refer to Figure 8 , Figure 8 This is a schematic cross-sectional view of valve 231C in a heat exchanger according to this application. Figure 8 As shown, at least three sets of limiting blocks 231F are spaced apart on the outer side of valve 231C. Each set of limiting blocks 231F includes two limiting blocks 231F. The two limiting blocks 231F in each set of limiting blocks 231F are combined to form a second limiting groove 231F1. The second limiting groove 231F1 cooperates with the limiting strip 231E. The distance between two adjacent sets of limiting blocks 231F is L1, and the width of each limiting block 231F is L2, where L2 < 1 / 2L1.

[0050] Here, the second limiting groove 231F1 cooperates with the limiting bar 231E to limit the position of the valve 231C. The valve 231C moves along the limiting bar 231E, which improves the stability of the valve 231C. At the same time, L2 < 1 / 2L1 to avoid interference caused by the valve 231C during operation along the limiting bar 231E.

[0051] To facilitate understanding, the working principle of this application is further described as follows: During use, the cold air generated by the heat exchange device 10 is simultaneously output from the first air outlet 10A and the second air outlet 10B. The cold air output from the second air outlet 10B is first transported short distance through the second pipeline 22, and then, after passing through the one-way check valve 23, under the action of the air acceleration device 221, it quickly reaches the sheet material feeding device 31 within the remaining distance of the second pipeline 22. The cold air after cooling the sheet material feeding device 31 continues to enter the main mill 30 of the grinding mill along the sheet material conveying pipeline 32 before the cold air output from the first air outlet 10A, so as to initially cool the main mill 30, and then be discharged from the outlet of the main mill 30.

[0052] At the same time, the cold air output from the first air outlet 10A is first transported short distance through the first pipe 21, then through the one-way check valve 23, and then enters the main mill 30 of the grinding mill. After cooling the main mill 30 again, it is discharged from the outlet of the main mill 30.

[0053] In summary, when the heat exchanger is exchanging heat with the grinding mill, the cold air entering the flake feeding device 31 is cooled down, and the unused cold air can enter the main grinding mill 30 for further cooling, which effectively improves the heat exchange efficiency of the heat exchanger and ensures the heat exchange effect.

[0054] Although this application has been described and illustrated with reference to specific embodiments thereof, such description and illustration are not limiting of this application. It will be readily understood by those skilled in the art that various changes can be made and equivalent elements can be substituted within embodiments without departing from the true spirit and scope of this application as defined by the appended claims. Illustrations may not be drawn to scale. Differences may exist between the technical representation in this application and actual implementation due to variables in the manufacturing process, etc. Other embodiments of this application may exist that are not specifically described. The description and illustrations should be considered illustrative rather than restrictive. Modifications can be made to adapt particular circumstances, materials, composition, methods, or processes to the objectives, spirit, and scope of this application. All such modifications fall within the scope of the appended claims. While the methods disclosed herein have been described with reference to specific operations performed in a particular order, it should be understood that these operations can be combined, subdivided, or reordered to form equivalent methods without departing from the teachings of this application. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit this application.

Claims

1. A heat exchanger, characterized in that, include A heat exchange device (10) is provided with a first air outlet (10A) and a second air outlet (10B); A pipe structure (20) is connected to the heat exchange device (10). The pipe structure (20) includes a first pipe (21) and a second pipe (22). The first air outlet (10A) is connected to one end of the first pipe (21), and the second air outlet (10B) is connected to one end of the second pipe (22). An air acceleration device (221) is also connected to the second pipe (22). The main mill (30) and the flake feeder (31) of the grinding mill are connected to the pipeline mechanism (20). The main mill (30) and the flake feeder (31) are connected through the flake conveying pipeline (32). The flake feeder (31) is provided with a sealing cover. The other end of the first pipeline (21) is connected to the main mill (30), and the other end of the second pipeline (22) is connected to the flake feeder (31).

2. The heat exchanger according to claim 1, characterized in that, The second pipe (22) has a flange mechanism (222) at the pipe body position. The air acceleration device (221) has a connection hole (221A) at both ends. The inner side of the connection hole (221A) is provided with an internal thread. The two ends of the air acceleration device (221) cooperate with the flange mechanism (222) through the connection hole (221A).

3. The heat exchanger according to claim 2, characterized in that, Both the first pipe (21) and the second pipe (22) are connected to a one-way check valve (23).

4. The heat exchanger according to claim 3, characterized in that, The one-way check valve (23) includes a valve body (231) and a connecting mechanism (232) connected to opposite ends of the valve body (231).

5. The heat exchanger according to claim 4, characterized in that, The valve body (231) includes a valve housing (231A), a compression spring (231B) disposed inside the valve housing (231A), a valve (231C) abutting against the compression spring (231B), and a limiting ring (231D) abutting against the outside of the valve (231C), wherein the compression spring (231B) abuts against the inside of the valve (231C).

6. The heat exchanger according to claim 5, characterized in that, The inner wall of the valve housing (231A) is provided with a limiting strip (231E). The limiting strip (231E) is L-shaped. The bottom of the limiting strip (231E) is provided with a first limiting groove (231E1). One end of the compression spring (231B) is located inside the first limiting groove (231E1).

7. The heat exchanger according to claim 6, characterized in that, At least three sets of limiting blocks (231F) are spaced apart on the outer side of the valve (231C). Each set of limiting blocks (231F) includes two limiting blocks (231F). The two limiting blocks (231F) in each set are combined to form a second limiting groove (231F1). The second limiting groove (231F1) cooperates with the limiting strip (231E).

8. The heat exchanger according to claim 7, characterized in that, The distance between two adjacent sets of the limiting blocks (231F) is L1, and the width of each limiting block (231F) is L2, where L2 < 1 / 2L1.

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