Water cooling device for aluminum alloy production

Abstract

The utility model discloses a water cooling device for aluminum alloy production, and belongs to the technical field of aluminum alloy processing. The device comprises a water cooling box, an inlet is formed in one side of the water cooling box, an outlet is formed in the other side of the water cooling box, a conveying device penetrating through the inlet and the outlet is fixedly arranged in the water cooling box, and a water mist output assembly used for outputting water mist and a water cooling output assembly used for spraying warm water are installed at the end, close to the outlet, of the top in the water cooling box. A negative pressure assembly used for generating a negative pressure environment is arranged at the end, close to the inlet, of the water cooling box. The utility model is in use. After the aluminum alloy plate enters the water cooling box through the inlet, the negative pressure assembly forms a negative pressure environment at the inlet end of the water cooling box to drive airflow to flow from the outlet end to the inlet end. The airflow drives micron-sized water mist particles released by the water mist output assembly to cover the plate surface, and the water mist forms a stable steam film on the surface of the aluminum plate due to fine particles and uniform vaporization, so that smooth pre-cooling is realized, and the risk of steam film breakage caused by direct contact of liquid water is avoided.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy processing technology, and in particular to a water-cooling device for aluminum alloy production. Background Technology

[0002] Aluminum alloy processing refers to the process of shaping aluminum alloy materials into products or parts with desired shapes, dimensions, and properties through various techniques such as casting, forging, extrusion, rolling, stretching, and cutting. Aluminum alloy processing requires not only precise control over the material's shape and dimensions but also attention to its internal microstructure and surface quality to ensure the performance and lifespan of the final product.

[0003] During the extrusion of aluminum alloy into aluminum alloy sheets, timely cooling is necessary, typically achieved through air cooling, which is inefficient. Therefore, the factory is considering switching to water cooling. However, during process testing, when the aluminum alloy sheet comes into direct contact with warm water, the water evaporates rapidly, quickly cooling the sheet. In this process, the rupture of the vapor film generated when water contacts the high-temperature aluminum sheet can lead to uneven surface oxidation or water stains, affecting the appearance of the finished product and subsequent painting or electroplating processes, thus reducing overall quality. Utility Model Content

[0004] This invention provides a water-cooling device for aluminum alloy production, which can solve the problem in the prior art where water contact with high-temperature aluminum plates during water cooling may cause uneven oxidation on the surface of the aluminum alloy plate or leave water spots, thereby affecting the appearance of the finished product and subsequent spraying or electroplating processes.

[0005] A water-cooling device for aluminum alloy production includes a water-cooling box with an inlet on one side and an outlet on the other side. A conveying device that passes through the inlet and outlet is fixedly installed inside the water-cooling box. A water mist output component for outputting water mist and a water-cooling output component for spraying warm water are installed at the top of the water-cooling box near the outlet. A negative pressure component for generating a negative pressure environment is provided at the end of the water-cooling box near the inlet.

[0006] As a further embodiment of this invention: the water mist output component includes a first water tank for storing liquid water, and a spray cooling device disposed inside the water cooling box.

[0007] As a further embodiment of this utility model: the water-cooled output component includes a second water tank for storing liquid water, and a spray cooling device disposed inside the water-cooled tank.

[0008] As a further embodiment of this utility model, a water tank is provided at the bottom of the water-cooled box.

[0009] As a further embodiment of this utility model: a water pump is installed at the bottom of the water tank near the inlet of the water cooling box, and a water delivery pipe is connected to the output end of the water pump. The water delivery pipe is connected to the first water tank and the second water tank.

[0010] As a further embodiment of this utility model: the bottom of the water tank is inclined from the outlet of the water-cooled box to the inlet of the water-cooled box.

[0011] As a further embodiment of this utility model: the negative pressure assembly includes a negative pressure pipe disposed on the side of the water-cooled box near the inlet, and the other end of the negative pressure pipe is connected to a fan.

[0012] As a further embodiment of this utility model: the negative pressure pipe is located below the inlet of the water-cooled box.

[0013] As a further embodiment of this utility model: the water-cooled box has an opening at the upper end near the outlet, and an isolation barrier is provided at the opening.

[0014] As a further aspect of this utility model, the height of the inlet shall not exceed 3 / 2 of the height of the aluminum alloy part.

[0015] The beneficial effects of this utility model are:

[0016] 1. In use, this utility model achieves efficient and uniform cooling of aluminum alloy plates through staged cooling and negative pressure airflow control. After the aluminum alloy plate enters the water-cooling box through the inlet, the negative pressure component creates a negative pressure environment at the inlet end of the water-cooling box, driving the airflow from the outlet end to the inlet end. The airflow carries micron-sized water mist particles released by the water mist output component to cover the plate surface. Due to the small size of the water mist particles and uniform vaporization, a stable vapor film is formed on the surface of the aluminum plate, achieving gentle pre-cooling and avoiding the risk of vapor film rupture caused by direct contact with liquid water. After pre-cooling, the aluminum plate moves to the outlet end, where the spray cooling component sprays warm water for secondary cooling. Due to the lower temperature, the stability of the vapor film is improved when the warm water comes into contact, the cooling rate is controllable, and the concentration of thermal stress and the formation of water spots are reduced.

[0017] 2. In use, the spray water and condensate water are collected in the inclined water tank, and after being pressurized by the water pump, they are respectively transported to the first water tank and the second water tank, realizing the closed-loop utilization of water resources. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a water cooling device for aluminum alloy production provided by this utility model;

[0019] Figure 2 A schematic diagram of the overall longitudinal section structure of a water cooling device for aluminum alloy production provided by this utility model;

[0020] Figure 3A schematic diagram of the isolation barrier structure of a water-cooling device for aluminum alloy production provided by this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Water-cooled box; 101. Isolation barrier; 102. Water tank; 103. Negative pressure pipe; 104. Inlet; 105. Outlet; 2. Water supply pipe; 3. Water mist output assembly; 301. First water tank; 302. Spray cooling device; 4. Water-cooled output assembly; 401. Second water tank; 402. Spray cooling device; 5. Transport device. Detailed Implementation

[0023] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0024] like Figures 1 to 3 As shown in the figure, this utility model provides a water-cooling device for aluminum alloy production. The device includes a water-cooling box 1, with an inlet 104 on one side and an outlet 105 on the other side. Figure 2 As shown. A conveying device 5, penetrating the inlet 104 and outlet 105, is fixedly installed inside the water-cooled box 1. The conveying device 5 is a guide roller conveyor, but other devices capable of transporting aluminum alloy plates are also included within the scope of this patent. A water mist output component 3 and a water-cooling output component 4 for spraying warm water are installed at the top of the water-cooled box 1 near the outlet 105. A negative pressure component for generating a negative pressure environment is installed at the end of the water-cooled box 1 near the inlet 104. The negative pressure component creates a negative pressure environment at one end of the water-cooled box 1, causing the airflow and water vapor from the end of the water-cooled box 1 near the outlet 105 to move towards the end of the water-cooled box 1 near the inlet 104. The airflow and water vapor accelerate the cooling of the aluminum alloy plate, pre-cooling it, before further cooling by the warm water output from the water-cooling output component 4. Compared to direct cooling with warm water: When using warm water, the vapor film generated upon contact with the high-temperature aluminum plate may rupture, potentially leading to uneven surface oxidation or water stains. With water mist cooling, the water vapor or mist particles are fine (micron-level), resulting in more uniform vaporization upon contact with the aluminum plate. This results in a more stable vapor film that is less prone to rupture. Simultaneously, heat transfer is gradual, leading to a more uniform oxide layer growth rate, reducing surface stress concentration. Furthermore, the absence of liquid water residue after evaporation prevents water stain formation and ensures a superior overall appearance. Additionally, the length of the water-cooling box 1 needs to be determined based on the application scenario to ensure sufficient pre-cooling of the aluminum alloy plate.

[0025] In this example, the water mist output assembly 3 includes a first water tank 301 for storing liquid water and a spray cooling device 302 disposed inside the water-cooled box 1. The spray cooling device 302 is responsible for outputting mist into the water-cooled box 1. The mist is small in volume and light in weight, making it easy to move with the airflow and uniformly cool the aluminum alloy plate. The closer to the spray cooling device 302, the more abundant the mist and the better the cooling effect. The water-cooled output assembly 4 includes a second water tank 401 for storing liquid water and a spray cooling device 402 disposed inside the water-cooled box 1. The spray cooling device 402 can directly spray warm water to fully cool the pre-cooled aluminum alloy plate.

[0026] The bottom of the water-cooled tank 1 is equipped with a water tank 102, which is used to receive warm water sprayed from the spray cooling device 402, such as... Figure 2 As shown, a water pump is installed at the bottom of the water tank 102 near the inlet 104 of the water-cooled box 1. The output end of the water pump is connected to a water delivery pipe 2, which is interconnected with the first water tank 301 and the second water tank 401. The water pump delivers the water collected in the water tank 102 into the first water tank 301 and the second water tank 401, thereby realizing water recycling. The bottom of the water tank 102 slopes from the outlet 105 of the water-cooled box 1 towards the inlet 104 of the water-cooled box 1, allowing the water in the water tank 102 to accumulate to one side, facilitating water collection by the pump.

[0027] The negative pressure assembly includes a negative pressure pipe 103 installed on the side of the water-cooled box 1 near the inlet 104. A fan is connected to the other end of the negative pressure pipe 103. The negative pressure pipe 103 is located below the inlet 104 of the water-cooled box 1. Figure 2 As shown, this allows airflow to be generated inside the water-cooled box 1 from the outlet 105 to the inlet 104, and the airflow passes over the aluminum alloy plate on the transport device 5, ensuring the cooling effect of the aluminum alloy plate. The staged cooling strategy (water mist pre-cooling + warm water main cooling) can reduce the water spot residue rate and meet the surface smoothness requirements of high-end spraying or electroplating processes. The negative pressure airflow combined with water mist cooling reduces the cooling energy consumption per unit area.

[0028] In one specific embodiment, the water-cooled box 1 has an opening at its upper end near the outlet 105, and an isolation panel 101 is provided at the opening, such as... Figure 3 As described above, outside air enters the water-cooled box 1 through the isolation barrier 101, forming an airflow that helps cool the aluminum alloy plates and simultaneously refreshes the air in the workshop. The negative pressure environment inhibits water mist escape, reduces workshop humidity and corrosion risks, and meets green manufacturing standards.

[0029] In another specific embodiment, an air supply pipe is provided at the upper end of the water-cooled box 1 near the outlet 105. After the airflow passes through the negative pressure pipe 103 and the fan, it returns to the interior of the water-cooled box 1 through the air supply pipe. Compared with the previous embodiment, the cost is lower.

[0030] In both of the above embodiments, the height of the inlet 104 must not exceed 3 / 2 of the height of the aluminum alloy component to reduce the possibility of air entering from the inlet 104 and ensure that most of the airflow moves along the outlet 105 of the water-cooled box 1 towards the inlet 104. The open isolation panel 101 or the closed air supply pipeline design can flexibly adapt to different workshop environments. The height restriction of the inlet 104 ensures directional airflow and avoids external air interference with cooling uniformity.

[0031] Working Principle: This device achieves efficient and uniform cooling of aluminum alloy plates through staged cooling and negative pressure airflow control. After the aluminum alloy plate enters the water-cooled box 1 through inlet 104, the negative pressure component (fan + negative pressure pipe 103) creates a negative pressure environment at the inlet 104 end of the water-cooled box 1, driving the airflow from the outlet 105 end to the inlet 104 end. The airflow carries micron-sized water mist particles released by the water mist output component 3 to cover the plate surface. Due to the small size of the water mist particles and uniform vaporization, a stable vapor film is formed on the surface of the aluminum plate, achieving gentle pre-cooling (cooling rate of about 50-80℃ / s), avoiding the risk of vapor film rupture caused by direct contact with liquid water. In this stage, uniform heat transfer inhibits local thickening of the oxide layer, while the airflow accelerates water vapor evaporation, eliminating liquid water residue.

[0032] The pre-cooled aluminum plate is moved to outlet 105, where the spray cooling assembly sprays warm water (40-60℃) for secondary cooling. Since the aluminum plate has been pre-cooled to the critical temperature (below 200℃), the stability of the vapor film is improved when in contact with the warm water, and the cooling rate is controllable (approximately 100-150℃ / s), further reducing thermal stress concentration and water spot formation.

[0033] Spray water and condensate are collected in the inclined water tank 102, and after being pressurized by the water pump, they are respectively transported to the first water tank 301 (water mist generation) and the second water tank 401 (spray water), realizing the closed-loop utilization of water resources.

[0034] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A water-cooling device for aluminum alloy production, comprising a water-cooling box (1), wherein the water-cooling box (1) has an inlet (104) on one side and an outlet (105) on the other side, and a conveying device (5) is fixedly installed inside the water-cooling box (1) through the inlet (104) and the outlet (105), characterized in that, The water-cooled box (1) is equipped with a water mist output component (3) for outputting water mist and a water-cooled output component (4) for spraying warm water at the top near the outlet (105). The water-cooled box (1) is also equipped with a negative pressure component for generating a negative pressure environment at the inlet (104).

2. The water-cooling device for aluminum alloy production as described in claim 1, characterized in that, The water mist output component (3) includes a first water tank (301) for storing liquid water and a spray cooling device (302) disposed inside the water cooling box (1).

3. The water-cooling device for aluminum alloy production as described in claim 1, characterized in that, The water-cooled output assembly (4) includes a second water tank (401) for storing liquid water, and a spray cooling device (402) disposed inside the water-cooled box (1).

4. A water-cooling device for aluminum alloy production as described in claim 2 or 3, characterized in that, The bottom of the water-cooled box (1) is provided with a water tank (102).

5. A water-cooling device for aluminum alloy production as described in claim 4, characterized in that, A water pump is installed at the bottom of the water tank (102) near the inlet (104) of the water cooling box (1). The output end of the water pump is connected to a water delivery pipe (2). The water delivery pipe (2) is connected to the first water tank (301) and the second water tank (401).

6. A water-cooling device for aluminum alloy production as described in claim 5, characterized in that, The bottom of the water tank (102) slopes from the outlet (105) of the water-cooled box (1) to the inlet (104) of the water-cooled box (1).

7. A water-cooling device for aluminum alloy production as described in claim 1, characterized in that, The negative pressure assembly includes a negative pressure pipe (103) disposed on the side of the water-cooled box (1) near the inlet (104), and the other end of the negative pressure pipe (103) is connected to a fan.

8. A water-cooling device for aluminum alloy production as described in claim 7, characterized in that, The negative pressure pipe (103) is located below the inlet (104) of the water-cooled box (1).

9. A water-cooling device for aluminum alloy production as described in claim 1, characterized in that, The water-cooled box (1) has an opening at the upper end near the outlet (105), and an isolation panel (101) is provided at the opening.

10. A water-cooling device for aluminum alloy production as described in claim 9, characterized in that, The height of the inlet (104) shall not exceed 3 / 2 of the height of the aluminum alloy part.

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