A heat exchanger

Abstract

The utility model provides a kind of heat exchanger, including heat exchanger body, the inside upper end of heat exchanger body is provided with upper partition, the inside lower end of heat exchanger body is provided with lower partition, upper partition and lower partition cooperate and the inner cavity of heat exchanger body is separated into upper intake chamber, heat exchange chamber and lower outlet chamber, the upper end of heat exchanger body is provided with waste gas intake pipe, the lower end of heat exchanger body is provided with waste gas outlet pipe, several connecting pipes are arranged in parallel in heat exchange chamber, the two ends of connecting pipe are connected with upper intake chamber and lower outlet chamber respectively, the front end of heat exchanger body is provided with fresh air inlet, the rear end of heat exchanger body is provided with fresh air outlet. The above-mentioned heat exchanger can collect the high-temperature waste gas generated by heating equipment and heat treatment equipment, to preheat the aluminum roll, and thus reduce the energy consumption required for heating the aluminum roll by the heating equipment and the heat treatment equipment, making the aluminum roll processing process more energy-saving and environmentally friendly.

Description

Technical Field

[0001] This utility model relates to heat exchange equipment, and more particularly, to a heat exchanger. Background Technology

[0002] Currently, the deep processing of aluminum coils involves several steps. First, the coil is heated using heating equipment to improve its ductility. Next, it is rolled using a rolling mill to achieve the required thickness, width, and surface quality. Then, it undergoes heat treatment to improve its mechanical properties. Finally, surface treatment is performed. However, both the heating and heat treatment equipment require independent heating of the aluminum coil, resulting in significant energy consumption. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a heat exchanger that has the advantage of reducing energy loss.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a heat exchanger, including a hollow heat exchanger body, an upper partition plate is provided at the upper inner side of the heat exchanger body, and a lower partition plate is provided at the lower inner side of the heat exchanger body. The upper partition plate and the lower partition plate cooperate to divide the inner cavity of the heat exchanger body into an upper air inlet chamber, a heat exchange chamber, and a lower air outlet chamber. An exhaust gas inlet pipe is provided at the upper end of the heat exchanger body and is connected to the upper air inlet chamber. An exhaust gas outlet pipe is provided at the lower end of the heat exchanger body and is connected to the lower air outlet chamber. A plurality of connecting pipes are arranged in parallel in the heat exchange chamber. The two ends of the connecting pipes are respectively connected to the upper air inlet chamber and the lower air outlet chamber. A fresh air inlet is opened at the front end of the heat exchanger body, and a fresh air outlet is opened at the rear end of the heat exchanger body. The fresh air inlet and the fresh air outlet are connected through the heat exchange chamber.

[0005] With the above technical solution, during use, the exhaust gas inlet pipe is connected to the exhaust gas outlet of the heating equipment and heat treatment equipment via a pipeline. The high-temperature exhaust gas generated during fuel combustion in the heating and heat treatment equipment enters the exhaust gas inlet pipe through the pipeline. Under pressure, the high-temperature exhaust gas in the exhaust gas inlet pipe flows sequentially through the upper inlet chamber, several connecting pipes, the lower outlet chamber, and the exhaust gas outlet pipe. The high-temperature exhaust gas heats the connecting pipes as it flows through them. Simultaneously, air is driven sequentially through the fresh air inlet, heat exchange chamber, and fresh air outlet using tools such as an air pump. When the air flows through the heat exchange chamber, the heated connecting pipes further heat the air. In this way, hot air discharged from the fresh air outlet can be guided to the aluminum coil to be heated via a pipeline for preheating, significantly reducing the energy consumed by the heating and heat treatment equipment to heat the aluminum coil, making the aluminum coil processing process more energy-efficient and environmentally friendly.

[0006] Preferably, the exhaust gas inlet pipe includes a main intake pipe and auxiliary intake pipes symmetrically arranged on the front and rear sides of the main intake pipe. The main intake pipe is connected to the middle of the upper intake chamber. The auxiliary intake pipes are inclined. One end of the auxiliary intake pipe is connected to the inner cavity of the main intake pipe, and the other end of the auxiliary intake pipe is connected to the end of the upper intake chamber.

[0007] Through the above technical solution, the two intake pipes can guide the high-temperature exhaust gas to flow to the front and rear ends of the upper intake chamber. In this way, the high-temperature exhaust gas can be more evenly dispersed in the upper intake chamber, and the connecting pipes located in the heat exchange chamber can be effectively heated. The air entering the heat exchange chamber can be effectively heated, and the heating efficiency of the heat exchanger can be effectively improved.

[0008] Preferably, an arc-shaped guide flap is provided on the inner side of the main intake pipe opposite to the secondary intake pipe. The lower edge of the arc-shaped guide flap coincides with the lower edge of the secondary intake pipe, and the upper edge of the arc-shaped guide flap is higher than the upper edge of the secondary intake pipe. The arc-shaped guide flap is used to guide exhaust gas into the secondary intake pipe.

[0009] Through the above technical solution, the arc-shaped guide flap can guide the high-temperature exhaust gas into the intake manifold, thereby improving the heating efficiency of the heat exchanger.

[0010] Preferably, a column is provided at the position opposite to the intake manifold on the upper partition plate, and a conical dispersion cap is provided at the upper end of the column, with the tip of the dispersion cap extending into the inner cavity of the intake manifold.

[0011] Through the above technical solution, the dispersion cap can guide the high-temperature exhaust gas to flow in all directions, so that the high-temperature exhaust gas can be more evenly dispersed in the upper air inlet chamber.

[0012] Preferably, the upper end of the dispersion cap is provided with a plurality of dispersion baffles along the circumference, and an arc-shaped dispersion channel is formed between two adjacent dispersion baffles. The width of the dispersion channel gradually increases outward from the axis of the dispersion cap.

[0013] The above technical solution allows for more effective guidance of high-temperature exhaust gas to flow in all directions through an arc-shaped dispersion channel.

[0014] Preferably, a cleaning ring is fitted onto the outer side of each of the connecting pipes, and the inner ring of the cleaning ring is in contact with the outer wall of the connecting pipe. When the cleaning ring slides along the axial direction of the connecting pipe, the cleaning ring can scrape off the dust attached to the outer side of the connecting pipe. A fixing rod is connected between two adjacent cleaning rings.

[0015] Through the above technical solution, the high-temperature exhaust gas generated by the combustion of heating and heat treatment equipment contains combustion ash. With the increase of usage time, a large amount of ash will adhere to the outside of the connecting pipe, which will affect the heating effect of the connecting pipe on the air. At this time, it is only necessary to apply force to one of the cleaning rings or one of the fixing rods to drive all the connecting rings and fixing rods to move along the axial direction of the connecting pipe, remove the ash adhering to the outside of the connecting pipe, and restore the heating effect of the connecting pipe on the air.

[0016] Preferably, the cleaning ring has annular scraping bevels at both its upper and lower ends, and the width of the inner circle of the scraping bevels gradually decreases from the middle of the cleaning ring to its ends.

[0017] With the above technical solution, circular scraping bevels are set at the upper and lower ends of the cleaning ring, so that when the dust attached to the outside of the connecting pipe is removed by the cleaning ring, the dust is not easy to adhere to the end of the cleaning ring.

[0018] Preferably, hooks are provided on both the front and rear sides of the lower end of the upper partition plate, and the hooks are used to connect with the fixing rod.

[0019] With the above technical solution, when the hook is connected to the fixing rod, it can be used to support and limit all cleaning rings and the fixing rod. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0021] Figure 2 for Figure 1 Enlarged view of part A;

[0022] Figure 3 This is a schematic diagram of the dispersion cap structure.

[0023] Reference numerals in the attached diagram: 1. Heat exchanger body; 2. Upper partition plate; 3. Lower partition plate; 4. Upper air inlet chamber; 5. Heat exchange chamber; 6. Lower air outlet chamber; 7. Exhaust gas inlet pipe; 71. Main air inlet pipe; 72. Secondary air inlet pipe; 8. Exhaust gas outlet pipe; 9. Connecting pipe; 10. Fresh air inlet; 11. Fresh air outlet; 12. Arc-shaped guide flap; 13. Column; 14. Dispersion cap; 15. Dispersion baffle; 16. Dispersion channel; 17. Cleaning ring; 18. Fixing rod; 19. Scraping bevel; 20. Hook. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0025] A heat exchanger, such as Figures 1 to 3 As shown, it includes a hollow heat exchanger body 1. The external shape of the heat exchanger body 1 is a cuboid, so it can be stably placed without the need for external components.

[0026] An upper partition plate 2 is provided on the upper inner side of the heat exchanger body 1, and a lower partition plate 3 is provided on the lower inner side of the heat exchanger body 1. Both the upper partition plate 2 and the lower partition plate 3 are horizontally arranged, and the upper partition plate 2 and the lower partition plate 3 cooperate to divide the inner cavity of the heat exchanger body 1 into an upper air inlet chamber 4, a heat exchange chamber 5, and a lower air outlet chamber 6.

[0027] An exhaust gas inlet pipe 7 is provided at the upper end of the heat exchanger body 1. The exhaust gas inlet pipe 7 is connected to the upper inlet chamber 4 to guide high-temperature exhaust gas into the upper inlet chamber 4. The exhaust gas inlet pipe 7 includes a main inlet pipe 71 and auxiliary inlet pipes 72 symmetrically arranged on both sides of the main inlet pipe 71. The main inlet pipe 71 is vertically arranged and connected to the middle of the upper inlet chamber 4. The auxiliary inlet pipes 72 are inclined, with one end connected to the inner cavity of the main inlet pipe 71 and the other end connected to the end of the upper inlet chamber 4.

[0028] An arc-shaped guide flap 12 is provided on the inner side of the main intake pipe 71 opposite to the secondary intake pipe 72. The lower edge of the arc-shaped guide flap 12 coincides with the lower edge of the secondary intake pipe 72, and the upper edge of the arc-shaped guide flap 12 is higher than the upper edge of the secondary intake pipe 72. The arc-shaped guide flap 12 is used to guide exhaust gas into the secondary intake pipe 72.

[0029] A column 13 is provided opposite to the intake manifold 72 on the upper partition plate 2. A conical dispersion cap 14 is provided at the upper end of the column 13, and the tip of the dispersion cap 14 extends into the inner cavity of the intake manifold 72. Several dispersion baffles 15 are provided circumferentially at the upper end of the dispersion cap 14, and an arc-shaped dispersion channel 16 is formed between two adjacent dispersion baffles 15. The width of the dispersion channel 16 gradually increases outward from the axis of the dispersion cap 14.

[0030] The lower end of the heat exchanger body 1 is provided with an exhaust gas outlet pipe 8, which is connected to the lower exhaust chamber 6 to guide the high-temperature exhaust gas out of the lower exhaust chamber 6.

[0031] Several connecting pipes 9 are arranged in parallel within the heat exchange chamber 5. The two ends of each connecting pipe 9 are connected to the upper air inlet chamber 4 and the lower air outlet chamber 6, respectively. A cleaning ring 17 is fitted onto the outer side of each connecting pipe 9. The inner ring of the cleaning ring 17 is in contact with the outer wall of the connecting pipe 9. When the cleaning ring 17 slides along the axial direction of the connecting pipe 9, it can scrape off the ash adhering to the outer side of the connecting pipe 9. A fixing rod 18 connects adjacent cleaning rings 17. Both the upper and lower ends of the cleaning ring 17 are provided with annular scraping bevels 19. The width of the inner ring of the scraping bevel 19 gradually decreases from the middle of the cleaning ring 17 to its ends.

[0032] Hooks 20 are provided on both the front and rear sides of the lower end of the upper partition plate 2. The hooks 20 are used to connect with the fixing rod 18.

[0033] A fresh air inlet 10 is provided at the front end of the heat exchanger body 1, and a fresh air outlet 11 is provided at the rear end of the heat exchanger body 1. The fresh air inlet 10 and the fresh air outlet 11 are connected through the heat exchange chamber 5.

[0034] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A heat exchanger, characterized in that: The heat exchanger includes a hollow heat exchanger body (1). An upper partition plate (2) is provided on the upper inner side of the heat exchanger body (1), and a lower partition plate (3) is provided on the lower inner side of the heat exchanger body (1). The upper partition plate (2) and the lower partition plate (3) cooperate to divide the inner cavity of the heat exchanger body (1) into an upper air inlet chamber (4), a heat exchange chamber (5), and a lower air outlet chamber (6). An exhaust gas inlet pipe (7) is provided at the upper end of the heat exchanger body (1), and the exhaust gas inlet pipe (7) is connected to the upper air inlet chamber (4). The lower end of the heat exchanger body (1) is provided with an exhaust gas outlet pipe (8), which is connected to the lower exhaust chamber (6). Several connecting pipes (9) are arranged in parallel in the heat exchange chamber (5). The two ends of the connecting pipes (9) are connected to the upper air inlet chamber (4) and the lower exhaust chamber (6) respectively. A fresh air inlet (10) is opened at the front end of the heat exchanger body (1), and a fresh air outlet (11) is opened at the rear end of the heat exchanger body (1). The fresh air inlet (10) and the fresh air outlet (11) are connected through the heat exchange chamber (5).

2. A heat exchanger according to claim 1, characterized in that: The exhaust gas inlet pipe (7) includes an intake main pipe (71) and intake secondary pipes (72) symmetrically arranged on the front and rear sides of the intake main pipe (71). The intake main pipe (71) is connected to the middle of the upper intake chamber (4). The intake secondary pipes (72) are arranged at an inclination. One end of the intake secondary pipes (72) is connected to the inner cavity of the intake main pipe (71), and the other end of the intake secondary pipes (72) is connected to the end of the upper intake chamber (4).

3. A heat exchanger according to claim 2, characterized in that: An arc-shaped guide flap (12) is provided on the inner side of the main intake pipe (71) opposite to the secondary intake pipe (72). The lower edge of the arc-shaped guide flap (12) coincides with the lower edge of the secondary intake pipe (72), and the upper edge of the arc-shaped guide flap (12) is higher than the upper edge of the secondary intake pipe (72). The arc-shaped guide flap (12) is used to guide exhaust gas into the secondary intake pipe (72).

4. A heat exchanger according to claim 2, characterized in that: A column (13) is provided on the upper partition plate (2) opposite to the intake sub-pipe (72). A conical dispersion cap (14) is provided on the upper end of the column (13), and the tip of the dispersion cap (14) extends into the inner cavity of the intake sub-pipe (72).

5. A heat exchanger according to claim 4, characterized in that: The upper end of the dispersion cap (14) is provided with a plurality of dispersion baffles (15) along the circumferential direction. An arc-shaped dispersion channel (16) is formed between two adjacent dispersion baffles (15). The width of the dispersion channel (16) gradually increases outward from the axis of the dispersion cap (14).

6. A heat exchanger according to claim 1, characterized in that: Each of the connecting pipes (9) is fitted with a cleaning ring (17) on its outer side. The inner ring of the cleaning ring (17) is in contact with the outer wall of the connecting pipe (9). When the cleaning ring (17) slides along the axial direction of the connecting pipe (9), the cleaning ring (17) can scrape off the dust attached to the outer side of the connecting pipe (9). A fixing rod (18) is connected between two adjacent cleaning rings (17).

7. A heat exchanger according to claim 6, characterized in that: The cleaning ring (17) has annular scraping bevels (19) at both its upper and lower ends. The inner width of the scraping bevels (19) gradually decreases from the middle of the cleaning ring (17) to the end of the cleaning ring (17).

8. A heat exchanger according to claim 6, characterized in that: Hooks (20) are provided on both the front and rear sides of the lower end of the upper partition plate (2), and the hooks (20) are used to connect with the fixing rod (18).

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