Aluminum profile cooling equipment and control method

Abstract

The invention relates to the technical field of aluminum profile production equipment, and discloses aluminum profile cooling equipment and a control method.The aluminum profile cooling equipment comprises a machine base, a cooling assembly and an air cooling assembly, a roller conveying line and two machine covers are arranged on the machine base, the cooling assembly comprises a front air pipe, a rear air pipe, a draught fan and a heat exchanger, and the heat exchanger is provided with an air flow channel; the front air pipe and the rear air pipe are communicated with an outlet and an inlet of the air flow channel respectively, a plurality of heat exchange pipes are arranged in the air flow channel, attached flat pipes are arranged on the outer walls of the heat exchange pipes in a winding mode, a plurality of first fins are arranged on the sides, away from the heat exchange pipes, of the flat pipes, and the fan is arranged on the front air pipe and / or the rear air pipe. And the air cooling assembly comprises a plurality of first air spraying pipes and a plurality of second air spraying pipes, the first air spraying pipes are provided with first air spraying holes, the second air spraying pipes are provided with second air spraying holes, and an exhaust assembly is arranged on the top wall of the second cooling cavity. And through multiple heat dissipation measures, the cooling effect on the aluminum profile is effectively improved, time consumption is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum profile production equipment, and in particular to aluminum profile cooling equipment and a control method. Background Art

[0002] Aluminum and its alloys have a series of excellent properties. Among the applications of metal materials, the application of aluminum ranks second only to that of steel. Aluminum has entered all aspects of human production and life, becoming an important basic material for developing the national economy and improving people's living standards. The social demand is growing rapidly and the application fields are constantly expanding.

[0003] In the related art, aluminum profiles are formed by extrusion. The aluminum profiles coming out of the extruder have a high temperature and need to be cooled to facilitate the next processing or treatment. In the prior art, usually only the fan is used for cooling. In actual production, due to the limited space in the factory, the cooling effect of the aluminum profile is poor, and there is a problem of uneven local cooling, which affects production efficiency. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an aluminum profile cooling device, which effectively improves the cooling effect of the aluminum profile through structural improvement, reduces time consumption, and improves production efficiency.

[0005] The present invention also proposes a control method applied to the above-mentioned aluminum profile cooling equipment.

[0006] According to the first aspect of the present invention, the aluminum profile cooling equipment includes a machine base, a cooling component and an air cooling component. A roller conveyor line and two machine covers are arranged on the machine base. The machine cover is arranged above the roller conveyor line. The interior of the first machine cover forms a first cooling cavity, and the interior of the second machine cover forms a second cooling cavity. The cooling component is arranged in the first cooling cavity. The cooling component includes a front air duct, a rear air duct, a fan and a heat exchanger. The heat exchanger has an air flow channel. The front air duct and the rear air duct are respectively connected to the outlet and the inlet of the air flow channel. A plurality of heat exchange tubes are arranged in the air flow channel. The outer wall of the heat exchange tube is wrapped with a fitted flat tube. The flat tube is used for circulation and heat exchange. liquid, a plurality of first fins are arranged on the side of the flat tube away from the heat exchange tube, the axial direction of the heat exchange tube is consistent with the flow direction of the air flow channel, and the fan is arranged in the front air duct and / or the rear air duct; the air cooling component is arranged in the second cooling cavity, and the air cooling component includes a plurality of first jet pipes and a plurality of second jet pipes, the first jet pipe is located at the lower side of the roller conveyor line and between two adjacent rollers, the second jet pipe is located at the upper side of the roller conveyor line, the first jet pipe is provided with a first jet hole facing the roller conveyor line, the second jet pipe is provided with a second jet hole facing the roller conveyor line, and the top wall of the second cooling cavity is provided with an exhaust component.

[0007] The aluminum profile cooling device according to the first embodiment of the present invention has at least the following beneficial effects: The high-temperature aluminum profile is transported by the roller conveyor line, and the fan of the cooling component drives the air flow. The air flows through multiple heat exchange tubes for heat exchange and cooling. The heat exchange liquid (such as water) flows in the flat tubes on the outer wall of the heat exchange tube, and the flat tube adds another heat exchange through the first fin to help the air cool down quickly. The low-temperature air blows to the high-temperature aluminum profile to help the aluminum profile dissipate heat; the aluminum profile enters the second cooling chamber, and the multiple first and second jet pipes of the air cooling component blow air to the aluminum profile at the same time to help cool it down, and the exhaust component exhausts the hot air to help cool the environment and help dissipate heat from the aluminum profile. Through multiple heat dissipation measures, the cooling effect of the aluminum profile is effectively improved, time consumption is reduced, and production efficiency is improved.

[0008] According to some embodiments of the first aspect of the present invention, a plurality of second fins are provided on the inner wall of the flat tube close to the heat exchange tube, a plurality of third fins are provided on the inner wall of the heat exchange tube, and the plurality of third fins are evenly distributed along the circumference of the heat exchange tube.

[0009] According to some embodiments of the first aspect of the present invention, the plurality of first fins are evenly distributed along the circumference of the heat exchange tube, and the plurality of third fins and the plurality of first fins are staggered.

[0010] According to some embodiments of the first aspect of the present invention, the heat exchanger has four heat exchange tubes, the four heat exchange tubes are distributed in two rows, and the first fins of the four heat exchange tubes are cross-arranged.

[0011] According to some embodiments of the first aspect of the present invention, the first air jet pipe is provided with three rows of the first air jet holes, the axes of the three rows of the first air jet holes have different angles with the horizontal plane, and the apertures of the three rows of the first air jet holes are different.

[0012] According to some embodiments of the first aspect of the present invention, the second cooling chamber is further provided with a spray pipe, and the spray pipe is provided with spray holes to face the roller conveyor line. Along the conveying direction of the roller conveyor line, the spray pipe is located upstream of the air cooling component.

[0013] According to some embodiments of the first aspect of the present invention, the machine base is provided with a water receiving tank, the water receiving tank is located below the spray pipe, the water receiving tank is connected to a filter and a pressure pump, and the output end of the pressure pump is connected to the spray pipe.

[0014] According to some embodiments of the first aspect of the present invention, the machine base is connected to a drying box, the drying box is connected to the outlet of the second cooling chamber, the drying box is provided with a hot air heat exchanger, and the hot air heat exchanger is connected to the flat tubes.

[0015] According to the control method of the second embodiment of the present invention, applied to the aluminum profile cooling device of the first embodiment, a first temperature probe is provided in the first cooling chamber, the first temperature probe is adjacent to the input end of the roller conveyor line in the first cooling chamber, a second temperature probe and a third temperature probe are provided in the second cooling chamber, the second temperature probe is adjacent to the input end of the roller conveyor line in the second cooling chamber, and the third temperature probe is adjacent to the output end of the roller conveyor line in the second cooling chamber, the control method comprises the following steps: S100, when the temperature detected by the first temperature probe exceeds a set value, the cooling component starts; S200, when the temperature detected by the second temperature probe exceeds a set value, the air cooling component starts; S300: When the temperature detected by the third temperature probe exceeds a set value, the spray pipe sprays water toward the roller conveyor line.

[0016] According to some embodiments of the second aspect of the present invention, in the step S100, the cooling component has four heat exchange tubes, and when the temperature detected by the first temperature probe exceeds a preset first upper limit, the cooling component starts two of the heat exchange tubes; when the temperature detected by the first temperature probe exceeds a preset second upper limit, the cooling component starts four of the heat exchange tubes.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which: Figure 1 It is a structural schematic diagram of an aluminum profile cooling device according to an embodiment of the first aspect of the present invention; Figure 2 A cross-sectional view of an aluminum profile cooling device according to an embodiment of the first aspect of the present invention; Figure 3 It is an exploded schematic diagram of a cooling assembly in an embodiment of the first aspect of the present invention; Figure 4 It is a schematic diagram of the structure of the heat exchange tube in the embodiment of the first aspect of the present invention; Figure 5 is a cross-sectional view of a flat tube in an embodiment of the first aspect of the present invention; Figure 6 It is a schematic structural diagram of the first gas injection pipe in the embodiment of the first aspect of the present invention; Figure 7 4 is a cross-sectional view of the first injection pipe in the embodiment of the first aspect of the present invention.

[0019] The figures are as follows: A machine base 100, a first cooling chamber 101, a second cooling chamber 102, a roller conveyor line 110, and a machine cover 120; Cooling assembly 200, front air duct 210, rear air duct 220, fan 230; Air cooling assembly 300, first jet pipe 310, second jet pipe 320, first jet hole 311, spray pipe 330; Heat exchanger 400, air flow channel 401, heat exchange tube 410, third fin 411, flat tube 420, second fin 421, first fin 430; Drying oven 500. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] It is understandable that, referring to Figures 1 to 7 The embodiment of the first aspect of the present invention provides an aluminum profile cooling device, which is an indispensable and important device in the aluminum profile production process. Its main function is to quickly cool the aluminum profile after extrusion molding, which is conducive to the dimensional stability and surface quality of the aluminum profile. The aluminum profile cooling device includes important components such as a base 100, a roller conveyor line 110, a hood 120, a cooling assembly 200 and an air cooling assembly 300.

[0025] The base 100 of the aluminum profile cooling equipment is the supporting structure of the entire equipment, and is usually made of strong and durable steel to ensure the stability and durability of the aluminum profile cooling equipment. A roller conveyor line 110 is arranged on the base 100, and the roller conveyor line 110 is used to convey the aluminum profile to be cooled. The roller conveyor line 110 is composed of a plurality of rollers, which rotate under the drive of a motor, thereby driving the aluminum profile to move forward on the conveyor line. The rollers are set to have a large radius at both ends to prevent the aluminum profile from shifting and falling out. The speed and direction of the roller conveyor line 110 can be adjusted by controlling the motor to adapt to aluminum profiles of different specifications and lengths.

[0026] Two hoods 120 are arranged above the roller conveyor line 110. The two hoods 120 are respectively arranged in different areas of the roller conveyor line 110 to form a first cooling chamber 101 and a second cooling chamber 102. The main function of the hood 120 is to prevent the heat in the cooling process from being lost to the external environment, and to protect the operator from the influence of high temperature and noise. The hood 120 is usually made of high temperature resistant and corrosion resistant materials, such as stainless steel plates, aluminum alloy plates, glass, etc. The first cooling chamber 101 and the second cooling chamber 102 have similar structures, but different functions. The first cooling chamber 101 is mainly used for preliminary cooling of aluminum profiles. The air is cooled by the heat exchanger 400 in the cooling component 200 and then blown to the aluminum profile to reduce its surface temperature. The second cooling chamber 102 is mainly used for further cooling of the aluminum profile. The cooling air is sprayed to the aluminum profile through the jet pipe in the air cooling component 300 to help the aluminum profile dissipate heat.

[0027] The cooling assembly 200 is arranged in the first cooling cavity 101 and is an important component of the aluminum profile cooling device. The cooling assembly 200 includes a front air duct 210, a rear air duct 220, a fan 230 and a heat exchanger 400. The heat exchanger 400 has an air flow channel 401 for the flowing air to pass through. A plurality of heat exchange tubes 410 are arranged in the air flow channel 401. The outer wall of the heat exchange tube 410 is surrounded by a flat tube 420 that fits the heat exchange tube 410. The flat tube 420 is used to circulate heat exchange liquid, such as cooling water or refrigerant. When the heat exchange liquid flows in the flat tube 420, it absorbs the heat in the heat exchange tube 410 and the air flow channel 401, thereby reducing the temperature of the air. In addition, a plurality of first fins 430 are arranged on the side of the flat tube 420 away from the heat exchange tube 410. The first fins 430 can increase the heat exchange area and improve the heat exchange efficiency. The shape and number of the first fins 430 can be designed according to actual needs to achieve a better heat exchange effect. The axial direction of the heat exchange tube 410 is consistent with the flow direction of the air flow channel 401 to ensure that the air can pass smoothly and take away the heat. The front air duct 210 and the rear air duct 220 are respectively arranged at the outlet and the inlet of the air flow channel 401. The position and number of the fan 230 can be designed according to actual needs. The fan 230 can be installed in the front air duct 210, or in the rear air duct 220, or one fan 230 can be installed in each of the front air duct 210 and the rear air duct 220. The fan 230 can be an axial flow fan 230, a centrifugal fan 230, etc.

[0028] It is understandable that the temperature of the aluminum profile is the highest at the input end of the roller conveyor line 110, and the heat dissipation effect is better here. Therefore, the front air duct 210 is connected to the outlet of the air flow channel 401 to blow low-temperature air to the aluminum profile at the input end of the roller conveyor line 110 to help quickly cool down; and the rear air duct 220 is connected to the inlet of the air flow channel 401, and the rear air duct 220 is located above the position of the roller conveyor line 110 close to the second cooling chamber 102 to form a circulating flow of air in the first cooling chamber 101. In addition, considering that the ambient temperature in the first cooling chamber 101 rises rapidly, a ventilation port can be set on the side wall of the first cooling chamber 101 to achieve air replacement; or, the rear air duct 220 is connected to the outside of the hood 120, and the air outside the hood 120 is introduced, and an exhaust port is set below the roller conveyor line 110 to discharge the air after heat exchange.

[0029] The air cooling assembly 300 is arranged in the second cooling chamber 102 and is another important component in the aluminum profile cooling device. The air cooling assembly 300 includes a plurality of first jet pipes 310 and a plurality of second jet pipes 320. The first jet pipes 310 are located at the lower side of the roller conveyor line 110, and each first jet pipe 310 is located between two adjacent rollers of the roller conveyor line 110. The first jet pipe 310 is provided with a first jet hole 311 facing the roller conveyor line 110. The size and number of the first jet hole 311 can be designed according to actual needs to achieve a better cooling effect. The second jet pipe 320 is located at the upper side of the roller conveyor line 110. The second jet pipe 320 is provided with a second jet hole facing the roller conveyor line 110. The ejected air can be directly ejected to the top of the aluminum profile. The second jet hole cooperates with the first jet hole 311 to form cooling wind on the upper and lower sides, and blows air to the bottom and top of the aluminum profile at the same time, so as to obtain a more comprehensive cooling effect, and can help the roller of the roller conveyor line 110 to dissipate heat, which helps to accelerate the heat dissipation of the aluminum profile. It should be understood that the first jet pipe 310 and the second jet pipe 320 are connected to a blower, which inhales air from the outside of the aluminum profile cooling device and then inputs the pressurized air into the first jet pipe 310 and the second jet pipe 320, thereby obtaining a high-speed air flow to help the aluminum profile dissipate heat. The axis of the second jet hole and the first jet hole 311 is usually set to be inclined, and the air ejected from the second jet hole and the first jet hole 311 is tilted to blow toward the aluminum profile to take away heat and prevent the air blown from the second jet hole and the first jet hole 311 from colliding with each other.

[0030] An exhaust assembly is provided on the top wall of the second cooling chamber 102, and the main function of the exhaust assembly is to exhaust the heated air out of the second cooling chamber 102, so as to maintain air circulation in the second cooling chamber 102 and prevent the ambient temperature of the second cooling chamber 102 from being too high. The exhaust assembly is usually composed of an exhaust fan and an exhaust port, and the exhaust fan drives the air to flow and discharge the air from the exhaust port to the outside of the hood 120.

[0031] When the aluminum profile cooling equipment is in operation, the high-temperature aluminum profile is transported by the roller conveyor line 110 through the first cooling chamber 101 and the second cooling chamber 102 in sequence. The fan 230 of the cooling component 200 drives the air flow, and the air flows through the multiple heat exchange tubes 410 for heat exchange and cooling. The heat exchange liquid (such as water) flows through the flat tubes 420 on the outer wall of the heat exchange tube 410, and the flat tubes 420 add another heat exchange through the first fins 430 to help the air cool down quickly. The low-temperature air blows to the high-temperature aluminum profile to help the aluminum profile cool down; the aluminum profile enters the second cooling chamber 102, and the multiple first jet pipes 310 and multiple second jet pipes 320 of the air cooling component 300 blow air to the aluminum profile at the same time to help dissipate heat, and the exhaust component exhausts the hot air to help cool the environment, which is helpful for the heat dissipation of the aluminum profile. Through multiple heat dissipation measures, the cooling effect of the aluminum profile is effectively improved, time consumption is reduced, and production efficiency is improved.

[0032] Reference Figure 5 In the aluminum profile cooling equipment, the cooling assembly 200 is the key to performance. A plurality of second fins 421 are added to the inner wall of the flat tube 420 near the heat exchange tube 410. The second fins 421 not only increase the contact area between the heat exchange liquid and the flat tube 420, which is helpful for heat transfer, but also increase the turbulence of the heat exchange liquid in the flat tube 420 through the turbulent effect of the second fins 421, thereby enhancing the efficiency of heat exchange. At the same time, the provision of the second fins 421 also makes the heat conduction between the flat tube 420 and the heat exchange tube 410 faster, thereby improving the heat exchange efficiency.

[0033] Reference Figure 4 A plurality of third fins 411 are also provided on the inner wall of the heat exchange tube 410. The third fins 411 are evenly distributed along the circumference of the heat exchange tube 410. The third fins 411 not only increase the contact area between the inner wall of the heat exchange tube 410 and the air, and help transfer heat, but also guide the air to form a multi-path flow in the heat exchange tube 410 through the guidance of the fins, further improving the heat exchange efficiency. In addition, the provision of the third fins 411 also helps to increase the structural strength of the heat exchange tube 410 and extend the service life of the heat exchange tube 410.

[0034] In actual applications, due to the addition of the second fin 421 and the third fin 411, the heat exchange process is more complete and efficient, the temperature of the drawn cold air is lower, which helps the aluminum profile to reach the required temperature faster during the cooling process, and the temperature distribution is more uniform, thereby improving production efficiency.

[0035] In the aluminum profile cooling equipment, the heat exchange efficiency and cooling effect of the cooling assembly 200 are directly related to the production quality and production efficiency of the aluminum profile. In order to further improve the performance of the equipment, the fin layout of the cooling assembly 200 is optimized. Figure 4The specific structure is that the multiple first fins 430 are evenly distributed along the circumference of the heat exchange tube 410, and the multiple first fins 430 and the multiple third fins 411 are staggered.

[0036] First, regarding the layout of the first fins 430, a method of evenly distributing them along the circumference of the heat exchange tube 410 is chosen, which can greatly increase the heat exchange area between the outer wall of the flat tube 420 and the air, and make the heat exchange process more uniform. The number, shape and size of the first fins 430 are precisely designed to ensure that they can provide sufficient heat exchange area without causing excessive resistance to the flow of air. Figure 4 As shown, the first fin 430 may also be configured as a hollow structure, and the air may flow through the hollow holes in the first fin 430 to increase the contact surface and improve the heat exchange effect.

[0037] Furthermore, the plurality of third fins 411 and the plurality of first fins 430 are arranged in a staggered manner, so that the heat exchange positions on both sides of the flat tube 420 are staggered, thereby improving the heat exchange efficiency. In practical applications, the staggered fin structure brings significant advantages.

[0038] It is understandable that in some embodiments of the present invention, the specific structure of the heat exchanger 400 has four heat exchange tubes 410, and the four heat exchange tubes 410 are cleverly divided into two rows, upper and lower, in terms of layout. At the same time, the first fins 430 on each heat exchange tube 410 are arranged in a cross manner, which not only optimizes space utilization, but also ensures that the circulating air can have more heat exchange area. The first fins 430 on the four heat exchange tubes 410 are arranged in a cross manner, which reduces the occupied space, and the heat exchanger 400 is small in size and has high heat exchange efficiency.

[0039] It is understood that in some embodiments of the present invention, reference Figure 6 The first jet pipe 310 is perpendicular to the moving direction of the aluminum profile, and the first jet holes 311 are arranged to be inclined. In order to realize all-round and multi-angle cooling of the aluminum profile, three rows of first jet holes 311 are arranged on the first jet pipe 310, and the angles between the axes of the three rows of first jet holes 311 and the horizontal plane are different, such as Figure 7 As shown, the angle between the axis of the upper row of first jet holes 311 and the horizontal plane can be set to 60 degrees, the angle between the axis of the middle row of first jet holes 311 and the horizontal plane can be set to 55 degrees, and the angle between the axis of the lower row of first jet holes 311 and the horizontal plane can be set to 45 degrees. When jetting, the air ejected from the three rows of first jet holes 311 forms a fan-shaped surface, which can increase the area contacting the aluminum profile and accelerate heat dissipation. Of course, the three rows of first jet holes 311 can also adopt other angles to meet the heat dissipation requirements.

[0040] In addition to the different angles, the apertures of the three rows of jet holes have also been carefully calculated and adjusted to achieve more precise flow control. The first jet holes 311 in the lower row have the smallest aperture because they have the longest jet distance, so the air velocity is faster and sufficient to be sprayed onto the aluminum profile; the first jet holes 311 in the middle row are the main force of the jet, so the aperture is the largest to increase the air volume and ensure that the aluminum profile is fully cooled, and this row of first jet holes 311 has the largest number. The first jet holes 311 in the upper row have a slightly smaller aperture and are fewer in number to supplement heat dissipation.

[0041] It is understandable that, in some embodiments of the present invention, a spray pipe 330 is further provided in the second cooling chamber 102 to enhance the cooling effect. The second cooling chamber 102 is divided into two functional areas, one functional area is equipped with a spray pipe 330, and the other functional area is equipped with an air cooling component 300. The air cooling component 300 blows air to the aluminum profile through the first air jet pipe 310 and the second air jet pipe 320, and the spray pipe 330 is used to spray water to the aluminum profile for heat dissipation, thereby realizing an organic combination of air cooling and water cooling, and further improving the heat dissipation efficiency.

[0042] The spray pipe 330 is provided with spray holes, which face the roller conveyor line 110 and are used to spray cooling water onto the aluminum profiles. The spray holes can be vertically downward or tilted downward, and can be in a single row or multiple rows, or nozzles can be provided to achieve various styles of spraying effects. The spray pipe 330 is located upstream of the air cooling component 300, which means that the aluminum profiles are first cooled by spraying and then cooled by the air cooling component 300, thereby achieving a more uniform and rapid cooling effect. Moreover, the air blowing of the air cooling component 300 can not only take away the water on the surface of the aluminum profiles, but also help the water evaporate and accelerate the heat dissipation.

[0043] like Figure 2 As shown, the layout of the spray pipe 330 takes into account the uniformity of distribution. Multiple parallel spray pipes 330 are arranged at equal intervals in the second cooling chamber 102, and the aperture size of the spray hole is calculated to ensure that the cooling water can cover the aluminum profiles on the roller conveyor line 110. The spray pipe 330 can be made of stainless steel or other high-temperature resistant materials to adapt to the ambient temperature of the second cooling chamber 102. The addition of the spray system allows the aluminum profile cooling device to not only cool by air, but also accelerate the transfer of heat through direct liquid contact, further improving the cooling efficiency.

[0044] In practical applications, the spray pipe 330 can be spray water or other suitable coolant, and its temperature, flow rate and spray pressure can be adjusted according to the material properties of the aluminum profile and the cooling requirements. In addition, the design of the spray pipe 330 also takes into account the convenience of maintenance and cleaning. The spray pipe 330 can be designed to be easy to disassemble and clean to prevent possible clogging problems after long-term use.

[0045] It is understandable that in some embodiments of the present invention, the base 100 of the aluminum profile cooling device is designed with a water receiving trough, which is located below the spray pipe 330. The main function of the water receiving trough is to collect the cooling water dripping during the spraying process to prevent the cooling water from being directly discharged or accumulated for a long time. The design of the water receiving trough fully considers the layout of the spray pipe 330 and the flow characteristics of the spray liquid, ensuring that the coolant can be effectively collected. Moreover, the air blowing of the air-cooled component 300 is directed toward the center of the water receiving trough, so that almost all the water on the surface of the aluminum profile falls into the water receiving trough. In addition, the water receiving trough is connected to a filter, and the function of the filter is to remove impurities in the cooling water to ensure that the cooling water can be recycled. The accuracy of the filter can be selected according to the purity requirements of the cooling water to ensure that the filtered cooling water meets the standards for reuse.

[0046] The water tank is also connected to a booster pump, which is a key component in the spray system. The function of the booster pump is to provide the necessary pressure for the cooling water to ensure that the cooling water can be sprayed out from the spray hole of the spray pipe 330 at an appropriate speed and pressure. The output end of the booster pump is connected to the spray pipe 330 to recycle the filtered cold water.

[0047] In practical applications, the booster pump can adjust the pressure as needed to meet the cooling needs of aluminum profiles of different specifications. For example, when processing aluminum profiles with larger cross-sections, higher pressure may be required to ensure that the coolant can evenly cover the entire surface of the profile.

[0048] Reference Figure 1 It is understandable that after spraying, although the aluminum profile can remove most of the water through the air cooling component 300, it may not be able to completely eliminate the water on the surface of the aluminum profile. Therefore, the base 100 of the aluminum profile cooling device is connected to a drying box 500, which is connected to the outlet of the second cooling chamber 102, allowing the cooled aluminum profile to enter the drying box 500 for further drying treatment to remove the moisture on the surface. Figure 1 As shown, the roller conveyor line 110 can be extended to the drying box 500 to continuously convey the aluminum profile. The setting of the drying box 500 helps to improve the drying quality of the aluminum profile and ensure its performance during subsequent processing or use.

[0049] A hot air heat exchanger is provided inside the drying box 500, and the hot air heat exchanger is connected to the flat tube 420. The heat exchange liquid heated in the flat tube 420 is used to produce hot air to reduce energy consumption. It should be understood that the drying box 500 requires less heat, and the output of the flat tube 420 can be led to the hot air heat exchanger through a bypass, and most of the heat exchange liquid can be cooled by a water cooling tower to achieve recycling. The function of the hot air heat exchanger is to provide hot air to accelerate the evaporation of moisture on the surface of the aluminum profile. The heat exchange liquid output by the flat tube 420 can save energy. Of course, the hot air heat exchanger can also be heated by an electric heating pipe to obtain hot air.

[0050] The embodiment of the second aspect of the present invention proposes a control method, which is applied to aluminum profile cooling equipment. The core of the control method is to use multiple temperature probes to monitor temperature changes in different cooling chambers. Specifically, a first temperature probe is provided in the first cooling chamber 101, and the first temperature probe is located near the input end of the roller conveyor line 110 in the first cooling chamber 101. The first temperature probe is used to monitor the temperature of the aluminum profile entering the first cooling chamber 101 in real time, providing initial data for the cooling process.

[0051] A second temperature probe and a third temperature probe are provided in the second cooling chamber 102. The second temperature probe is located adjacent to the input end of the roller conveyor line 110 in the second cooling chamber 102, and the third temperature probe is located adjacent to the output end of the roller conveyor line 110. The second temperature probe and the third temperature probe are used to detect the temperature change of the aluminum profile in the second cooling chamber 102, so as to evaluate and adjust the cooling effect.

[0052] The steps of the control method are as follows: S100: When the temperature detected by the first temperature probe exceeds the set value, the cooling assembly 200 is started, and the aluminum profile immediately starts the cooling assembly 200 to dissipate heat after entering the first cooling chamber 101. The start of the cooling assembly 200 is the synchronous start of the circulation of the fan 230 and the heat exchange liquid in the heat exchanger 400. The start of the fan 230 helps to accelerate the flow of cold air and improve the heat exchange efficiency. The circulation of the heat exchange liquid helps to take away the heat of the air, so as to produce cold air to help the aluminum profile to be effectively cooled.

[0053] S200: When the temperature detected by the second temperature probe exceeds the set value, the air cooling assembly 300 is activated. The activation of the air cooling assembly 300 further enhances the cooling effect, and the air ejected from the first jet pipe 310 and the second jet pipe 320 of the air cooling assembly 300 can directly contact the surface of the aluminum profile, accelerating the heat dissipation.

[0054] S300: When the temperature detected by the third temperature probe exceeds the set value, the spray pipe 330 sprays water to the roller conveyor line 110, and uses water evaporation to take away the heat of the aluminum profile, which is mainly for aluminum profiles with larger volumes to meet the heat dissipation requirements. The water spraying of the spray pipe 330 can quickly reduce the temperature of the aluminum profile to prevent quality problems caused by excessive temperature.

[0055] In order to achieve the above control steps, the aluminum profile cooling device is equipped with a control system, which can receive signals from the first temperature probe, the second temperature probe and the third temperature probe, and automatically start the cooling component 200, the cold air component and the spray system according to the preset temperature threshold. The control system can be a PLC (programmable logic controller) or similar industrial control equipment. The control system also includes a user interface that enables the operator to monitor temperature data, adjust set points, and manually start or stop the aluminum profile cooling device when necessary. In addition, the control system can also record temperature data and cooling history to provide data support for the optimization and quality control of the production process.

[0056] It is understood that in some embodiments of the second aspect of the present invention, the heat exchanger 400 in the first cooling chamber 101 has four heat exchange tubes 410. In step S100, when the temperature detected by the first temperature probe exceeds the preset first upper limit, the cooling assembly 200 will start two heat exchange tubes 410. At the first temperature, only part of the heat exchange tubes 410 are started to save energy. When the temperature detected by the first temperature probe exceeds the preset second upper limit, four heat exchange tubes 410 are started to provide maximum cooling capacity to ensure that the temperature of the aluminum profile is effectively controlled. The phased startup strategy not only improves energy efficiency, but also extends the service life of the equipment. By accurately controlling the number of heat exchange tubes 410 started, the equipment can provide an appropriate amount of heat dissipation capacity according to actual needs, avoiding the problem of overcooling or insufficient cooling. In addition, it can also be a method of starting one heat exchange tube 410, three heat exchange tubes 410, etc. separately, depending on the specifications of the aluminum profile.

[0057] It is understandable that in order to accurately control the temperature of the cold air output by the cooling assembly 200, and thus accurately control the cooling effect of the aluminum profile, an electrically controlled flow valve and a fourth temperature probe are provided at the inlet of each flat tube 420, a fifth temperature probe is provided at the outlet, an outlet air temperature probe is provided at the front air duct 210, and a return air temperature probe is provided at the rear air duct 220. The heat exchange liquid flow in the flat tube 420 satisfies the equation: , where Q is the heat exchange liquid flow rate of the flat tube 420 (controlled by the electronically controlled flow valve); k is the adjustment coefficient, which is set according to the specifications of the aluminum profile; is the preset outlet air temperature of the cooling assembly 200; T is the outlet air temperature detected by the outlet air temperature probe; A is the cross-sectional area of ​​the flat tube 420; is the density of the heat transfer liquid; is the specific heat capacity of the heat exchange liquid. The flow rate of the heat exchange liquid is controlled according to the difference between the outlet air temperature and the preset outlet air temperature. The return air temperature probe is used to monitor the cooling effect of the aluminum profile in the first cooling chamber 101. When the return air temperature probe detects that the temperature fluctuation range is abnormal, an alarm is issued; the fourth temperature probe and the fifth temperature probe are used to monitor the temperature of the heat exchange liquid input to the flat tube 420 and the temperature of the heat exchange liquid output from the flat tube 420, respectively. When the temperature fluctuation range of the heat exchange liquid is abnormal, an alarm is issued, and the flow rate can be compensated according to the temperature fluctuation of the heat exchange liquid.

[0058] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Aluminum profile cooling equipment, characterized in that: include: A machine base, wherein a roller conveyor line and two machine covers are arranged on the machine base, wherein the machine covers are arranged above the roller conveyor line, wherein the interior of the first machine cover forms a first cooling cavity, and the interior of the second machine cover forms a second cooling cavity; A cooling component is arranged in the first cooling cavity, the cooling component includes a front air duct, a rear air duct, a fan and a heat exchanger, the heat exchanger has an air flow channel, the front air duct and the rear air duct are respectively connected to the outlet and the inlet of the air flow channel, a plurality of heat exchange tubes are arranged in the air flow channel, a fitted flat tube is wound around the outer wall of the heat exchange tube, the flat tube is used to circulate heat exchange liquid, a plurality of first fins are arranged on the side of the flat tube away from the heat exchange tube, the axial direction of the heat exchange tube is consistent with the flow direction of the air flow channel, and the fan is arranged in the front air duct and / or the rear air duct; An air cooling component is arranged in the second cooling chamber, and the air cooling component includes a plurality of first jet pipes and a plurality of second jet pipes, the first jet pipes are located at the lower side of the roller conveyor line and between two adjacent rollers, the second jet pipes are located at the upper side of the roller conveyor line, the first jet pipe is provided with a first jet hole facing the roller conveyor line, the second jet pipe is provided with a second jet hole facing the roller conveyor line, and an exhaust component is provided on the top wall of the second cooling chamber.

2. The aluminum profile cooling device according to claim 1, characterized in that: The flat tube is provided with a plurality of second fins on the inner side wall close to the heat exchange tube, and the inner wall of the heat exchange tube is provided with a plurality of third fins, and the plurality of third fins are evenly distributed along the circumference of the heat exchange tube.

3. The aluminum profile cooling device according to claim 2, characterized in that: The plurality of first fins are evenly distributed along the circumferential direction of the heat exchange tube, and the plurality of third fins and the plurality of first fins are staggered.

4. The aluminum profile cooling device according to claim 2, characterized in that: The heat exchanger has four heat exchange tubes, the four heat exchange tubes are distributed in two rows, and the first fins of the four heat exchange tubes are cross-arranged.

5. The aluminum profile cooling device according to claim 1, characterized in that: The first jet pipe is provided with three rows of the first jet holes, the included angles between the axes of the three rows of the first jet holes and the horizontal plane are different, and the apertures of the three rows of the first jet holes are different.

6. The aluminum profile cooling device according to claim 1, characterized in that: The second cooling chamber is also provided with a spray pipe, and the spray pipe is provided with spray holes to face the roller conveyor line. Along the conveying direction of the roller conveyor line, the spray pipe is located upstream of the air cooling component.

7. The aluminum profile cooling device according to claim 6, characterized in that: The machine base is provided with a water receiving tank, the water receiving tank is located below the spray pipe, the water receiving tank is connected to a filter and a pressure pump, and the output end of the pressure pump is connected to the spray pipe.

8. The aluminum profile cooling device according to claim 7, characterized in that: The machine base is connected to a drying box, the drying box is connected to the outlet of the second cooling chamber, the drying box is provided with a hot air heat exchanger, and the hot air heat exchanger is connected to the flat tube.

9. A control method, applied to the aluminum profile cooling device according to any one of claims 6 to 8, characterized in that: The first cooling chamber is provided with a first temperature probe, the first temperature probe is adjacent to the input end of the roller conveyor line in the first cooling chamber, the second cooling chamber is provided with a second temperature probe and a third temperature probe, the second temperature probe is adjacent to the input end of the roller conveyor line in the second cooling chamber, and the third temperature probe is adjacent to the output end of the roller conveyor line in the second cooling chamber, and the control method comprises the following steps: S100, when the temperature detected by the first temperature probe exceeds a set value, the cooling component starts; S200, when the temperature detected by the second temperature probe exceeds a set value, the air cooling component starts; S300: When the temperature detected by the third temperature probe exceeds a set value, the spray pipe sprays water toward the roller conveyor line.

10. The control method according to claim 9, characterized in that: In the step S100, the cooling component has four heat exchange tubes. When the temperature detected by the first temperature probe exceeds a preset first upper limit, the cooling component starts two of the heat exchange tubes. When the temperature detected by the first temperature probe exceeds a preset second upper limit, the cooling component starts four of the heat exchange tubes.

Images