Overhead flue with heat recovery function

Abstract

The utility model discloses an overhead flue with a heat recovery function, which comprises an overhead flue body, guide shells are fixedly mounted on two sides of the outer surface of the overhead flue body, and a water guide pipe is fixedly connected between two ends of each guide shell. Through the arrangement of the flow guide shell, the first copper heat conduction fins and the second copper heat conduction fins, in the high-temperature waste gas emission process, flowing water and heat transferred and diffused by the side wall of the overhead flue body can be effectively recycled; through the arrangement of the first copper heat exchange pipe set and the second copper heat exchange pipe set, circulation can be generated between water bodies in the two sets of flow guide shells, heat in high-temperature waste gas can be recycled through the first copper heat exchange pipe set and the second copper heat exchange pipe set under the circulation effect of the water bodies, and the heat recycling efficiency is greatly improved; and resource waste caused by heat diffusion and loss from the side wall of the overhead flue body to the outside is reduced.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery technology, specifically an overhead flue with heat recovery function. Background Technology

[0002] An overhead flue refers to a flue gas transport channel supported and erected in the air. During the production process of the sodium sulfide converter, a large amount of high-temperature waste gas is often discharged into the atmosphere through an overhead flue. In order to recover and utilize the heat in the high-temperature waste gas, heat exchange tubes are usually installed inside the overhead flue, and water is transported to the heat exchange tubes by a screw pump, so that heat is recovered by heat exchange between the water and the waste gas. However, as the waste gas is discharged along the overhead flue, the flue wall will also increase its temperature due to contact with the high-temperature waste gas, and the temperature will be transferred to the surrounding environment. The method of installing heat exchange tubes inside cannot effectively recover and utilize the heat transferred by the flue wall, thus causing some heat to be wasted. Utility Model Content

[0003] The purpose of this utility model is to provide an overhead flue with heat recovery function, which can recover the heat of high-temperature exhaust gas and the heat diffused at the flue wall inside the overhead flue, effectively improving the efficiency of heat recovery operation and reducing resource waste.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an overhead flue with heat recovery function, comprising an overhead flue body, with guide shells fixedly installed on both sides of the outer surface of the overhead flue body, and water pipes fixedly connected between the two ends of the guide shells; second mounting plates fixedly installed on both the front and rear sides of the overhead flue body, with second copper heat-conducting fins fixedly connected to both ends of the second mounting plates, and a second copper heat exchange tube assembly fixedly connected between the two ends of the second mounting plates; first copper heat-conducting fins fixedly connected to both ends of the left and right sides of the overhead flue body; and first mounting plates fixedly installed at the middle of both the left and right sides of the overhead flue body, with a first copper heat exchange tube assembly fixedly connected between the surfaces of the two first mounting plates.

[0005] As a preferred embodiment, a flange is fixedly connected to the middle end of the water pipe, and a rubber sealing gasket is fixedly installed on the surface of the flange.

[0006] As a preferred embodiment, mounting frame plates are fixedly connected to both sides of the overhead flue body, and mounting holes are provided around all four sides of the mounting frame plates.

[0007] As a preferred embodiment, both ends of the water guide pipe are fixedly connected to a diverter plate, and the diverter plate is shaped like a herringbone.

[0008] As a preferred embodiment, both the first and second copper heat-conducting fins are rectangular in shape, and both are arranged in parallel.

[0009] As a preferred embodiment, a first metal sealing gasket is fixedly installed on one side of the two first mounting plates that are close to each other, and the surface of the first metal sealing gasket is in contact with the surface of the overhead flue body.

[0010] As a preferred embodiment, a second metal sealing gasket is fixedly installed on one side of the two second mounting plates that are close to each other, and the surface of the second metal sealing gasket is in contact with the surface of the overhead flue body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, through the arrangement of a flow guide shell, a first copper heat-conducting fin, and a second copper heat-conducting fin, enables the water flowing through it to effectively recover the heat transferred and diffused by the side wall of the overhead flue during the high-temperature exhaust gas emission process. Simultaneously, the arrangement of the first and second copper heat exchanger tube groups allows for water circulation between the two sets of flow guide shells. This circulation allows the water to recover heat from the high-temperature exhaust gas through the first and second copper heat exchanger tube groups, greatly improving the efficiency of heat recovery and reducing resource waste caused by heat loss from the side wall of the overhead flue to the outside. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a top view cross-sectional structural diagram of the present invention.

[0015] Figure 3 This is a schematic diagram of the overhead flue body structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the flow guide shell structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the first copper heat exchanger tube assembly and the second copper heat exchanger tube assembly of this utility model.

[0018] In the diagram: 1. Overhead flue body; 2. Guide shell; 3. Mounting frame plate; 4. Water pipe; 5. Flange; 6. Mounting hole; 7. First copper heat exchange tube assembly; 8. First mounting plate; 9. First copper heat conduction fin; 10. Diverter plate; 11. Second copper heat conduction fin; 12. Second mounting plate; 13. Second copper heat exchange tube assembly. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0021] The components of this application, such as the overhead flue body 1, the guide shell 2, the mounting frame plate 3, the water guide pipe 4, the flange 5, the mounting hole 6, the first copper heat exchange tube assembly 7, the first mounting plate 8, the first copper heat conduction fin 9, the flow divider plate 10, the second copper heat conduction fin 11, the second mounting plate 12, and the second copper heat exchange tube assembly 13, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0022] Example 1:

[0023] Please see Figures 1-5 As shown, this utility model provides an overhead flue with heat recovery function, including an overhead flue body 1. A guide shell 2 is fixedly installed on both sides of the outer surface of the overhead flue body 1. A water guide pipe 4 is fixedly connected between the two ends of the guide shell 2. Second mounting plates 12 are fixedly installed on both the front and rear sides of the overhead flue body 1. Second copper heat-conducting fins 11 are fixedly connected to both ends of the second mounting plates 12. A second copper heat exchange tube assembly 13 is fixedly connected between the two ends of the second mounting plates 12. First copper heat-conducting fins 9 are fixedly connected to both ends of both the left and right sides of the overhead flue body 1. First mounting plates 8 are fixedly installed at the middle of both the left and right sides of the overhead flue body 1. A first copper heat exchange tube assembly 7 is fixedly connected between the surfaces of the two first mounting plates 8.

[0024] In this technical solution, the overhead flue body 1 is installed between the high-temperature exhaust pipe of the short converter and the external cold water supply pipe and hot water recovery pipe are connected to the right and left water guide pipes 4 respectively. When the high-temperature exhaust gas is discharged through the overhead flue body 1, the water flows from the right water guide pipe 4 to the left water guide pipe 4 through the cold water supply pipe. This allows the water to absorb the high-temperature heat from the side wall of the overhead flue body 1 along the inner wall of the guide shell 2. At the same time, the first copper heat-conducting fin 9 and the second copper heat-conducting fin 1 are connected. Under the action of 1, the high temperature of the side wall of the overhead flue body 1 can be quickly transferred to the water. As the water flows from the right guide shell 2 along the first copper heat exchange tube group 7 and the second copper heat exchange tube group 13 into the left guide shell 2, the water can quickly recover the heat from the high temperature exhaust gas flowing inside the overhead flue body 1 by passing through the first copper heat exchange tube group 7 and the second copper heat exchange tube group 13. This allows the water temperature to rise rapidly and then flow into the hot water recovery pipe connected to the left water guide pipe 4 for recovery.

[0025] Example 2:

[0026] Based on Embodiment 1, this utility model is as follows: Figures 1-5 As shown, a flange 5 is fixedly connected to the middle end of the water pipe 4, and a rubber sealing gasket is fixedly installed on the surface of the flange 5. Mounting frame plates 3 are fixedly connected to both sides of the overhead flue body 1, and mounting holes 6 are opened around the perimeter of the mounting frame plates 3. Diverter plates 10 are fixedly connected to both ends of the water pipe 4. The diverter plates 10 are shaped like a herringbone. The first copper heat-conducting fin 9 and the second copper heat-conducting fin 11 are both rectangular in shape and are distributed in parallel. A first metal sealing gasket is fixedly installed on the side of the two first mounting plates 8 that are close to each other, and the surface of the first metal sealing gasket is in contact with the surface of the overhead flue body 1. A second metal sealing gasket is fixedly installed on the side of the two second mounting plates 12 that are close to each other, and the surface of the second metal sealing gasket is in contact with the surface of the overhead flue body 1.

[0027] In this technical solution, the flange 5 and rubber sealing gasket facilitate the connection and installation of external cold water delivery pipes and hot water recovery pipes with water guide pipe 4, and effectively improve the sealing performance of the connection and installation. The diversion plate 10 can divert the water transported inside the guide shell 2 by the water guide pipe 4. The first metal sealing gasket and the second metal sealing gasket respectively improve the sealing performance of the connection between the first mounting plate 8, the second mounting plate 12 and the overhead flue body 1.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An overhead flue with heat recovery function, comprising an overhead flue body (1), characterized in that: Both sides of the outer surface of the overhead flue body (1) are fixedly installed with flow guide shells (2), and water guide pipes (4) are fixedly connected between the two ends of the flow guide shells (2). Both the front and rear sides of the overhead flue body (1) are fixedly installed with second mounting plates (12), and both ends of the second mounting plates (12) are fixedly connected with second copper heat-conducting fins (11). Both ends of the second mounting plates (12) are fixedly connected with second copper heat exchange tube groups (13). Both ends of the left and right sides of the overhead flue body (1) are fixedly connected with first copper heat-conducting fins (9). Both the middle ends of the left and right sides of the overhead flue body (1) are fixedly installed with first mounting plates (8), and the surfaces of the two first mounting plates (8) are fixedly connected with first copper heat exchange tube groups (7).

2. The overhead flue with heat recovery function according to claim 1, characterized in that: A flange (5) is fixedly connected to the middle end of the water pipe (4), and a rubber sealing gasket is fixedly installed on the surface of the flange (5).

3. The overhead flue with heat recovery function according to claim 1, characterized in that: The overhead flue body (1) is fixedly connected to both sides of the mounting frame plate (3), and the mounting frame plate (3) is provided with mounting holes (6) around its perimeter.

4. The overhead flue with heat recovery function according to claim 1, characterized in that: Both ends of the water pipe (4) are fixedly connected to a diversion plate (10), and the diversion plate (10) is shaped like a herringbone.

5. An overhead flue with heat recovery function according to claim 1, characterized in that: The first copper heat-conducting fin (9) and the second copper heat-conducting fin (11) are both rectangular in shape, and the first copper heat-conducting fin (9) and the second copper heat-conducting fin (11) are both distributed in parallel.

6. An overhead flue with heat recovery function according to claim 1, characterized in that: A first metal sealing gasket is fixedly installed on one side of the two first mounting plates (8) that are close to each other, and the surface of the first metal sealing gasket is in contact with the surface of the overhead flue body (1).

7. An overhead flue with heat recovery function according to claim 1, characterized in that: Two second mounting plates (12) are fixedly installed with a second metal sealing gasket on one side close to each other, and the surface of the second metal sealing gasket is in contact with the surface of the overhead flue body (1).

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