Air cooling device and extruder barrel cooling system with same

Abstract

The utility model relates to the technical field of extruder equipment, in particular to an air cooling device and an extruder barrel cooling system with the air cooling device, the air cooling device comprises a first cooling water tank, a water flow partition plate, an air delivery pipe and a fan, the wall surface of the first cooling water tank is provided with a first water inlet and a first water outlet, and the first water inlet is communicated with the water flow partition plate. The water flow partition plate is installed in the first cooling water tank and located between the first water inlet and the first water outlet, a plurality of first through holes allowing cooling water to pass through are formed in the water flow partition plate, and the air conveying pipe penetrates through the first cooling water tank and the water flow partition plate. One end of the air delivery pipe is communicated with an air inlet of the fan, and the other end of the air delivery pipe is communicated with the outside of the first cooling water tank, so that the temperature of cooling water is uniform, the air cooling efficiency is improved, and the air cooling effect is improved; and the air cooling device and the water cooling device are used for cooling the extruder barrel together, so that the cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder equipment, and more specifically, to an air cooling device and an extruder barrel cooling system having the air cooling device. Background Art

[0002] The working principle of the plastic extruder is to first heat the material, and then transport the heated material to the plastic extrusion device. The pressure and shear force generated by the rotation of the screw in the plastic extrusion device can fully plasticize and evenly mix the material, and then form it through the die. However, the plastic extruder will generate a lot of heat during operation. Once the temperature of the plastic extruder is too high, the plastic will not be able to solidify and form effectively. The existing cooling device mainly uses a cold air blower to blow out cold air or spray cooling water for cooling, which not only easily causes the extruded plastic product to deform, but also affects the subsequent use of the plastic product.

[0003] Patent CN213564225U discloses an energy-saving water-cooling cooling system for a plastic extruder, comprising a plastic extruder body, a cooling box and an air distribution plate, the top of the cooling box is fixedly connected with the air distribution plate, the inner side of the air distribution plate is penetrated and connected with an air outlet, the top of the cooling box close to the heat collecting plate is penetrated and connected with a water inlet pipe, a condenser is arranged on the side of the water inlet pipe away from the cooling box, a water pump is fixedly connected to one end of the bottom of the cooling box close to the heat collecting plate, a water suction pipe is penetrated and connected to one side of the water pump away from the cold water pipe, an induced draft fan is fixedly connected to one end of the bottom of the cooling box away from the water pump, and an air supply pipeline is penetrated and connected to the top of the induced draft fan; the utility model performs air-cooled and water-cooled dual cooling treatment on the plastic extruder under the joint action of the cold water box and the induced draft fan, which greatly improves the heat dissipation and cooling effect of the plastic extruder, thereby extending its service life and making it more practical. However, in the above scheme, in some areas of the air cooling device, the cooling water circulates slowly or even cannot circulate, and the temperature distribution of the cooling water is uneven, which makes it difficult to transfer heat, resulting in poor cooling effect on part of the air flow in the gas pipeline, thereby reducing the air cooling effect. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art, to provide an air cooling device capable of cooling air evenly and improving the air cooling effect, and also to provide an extruder barrel cooling system with dual cooling of air cooling and water cooling.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A wind cooling device is provided, comprising a first cooling water tank, a water flow baffle, an air pipe and a fan, wherein a first water inlet and a first water outlet are provided on a wall surface of the first cooling water tank, the water flow baffle is installed inside the first cooling water tank, the water flow baffle is located between the first water inlet and the first water outlet, and divides the internal space of the first cooling water tank into a plurality of parts in the upper and lower parts, a plurality of first through holes for cooling water to pass through are provided in the water flow baffle, the air pipe passes through the first cooling water tank and the water flow baffle, one end of the air pipe is connected to the air inlet of the fan, and the other end is connected to the outside of the first cooling water tank.

[0007] In the air cooling device of the utility model, the fan sucks air from the air supply pipe into the first cooling water tank, the cooling water flows into the first cooling water tank from the first water inlet and flows out from the first water outlet, the temperature of the air flow in the air supply pipe is reduced by heat exchange, the air flow passes through the air supply pipe, and is guided to the object to be cooled via the fan, so that the temperature of the object is reduced; cooling the air flow can ensure that the air cooling effect is not affected by hot weather; after the cooling water flows into the first cooling water tank from the first water inlet, it is blocked by the water flow baffle and can only flow to the first water outlet along the first through hole on the water flow baffle, so that the cooling water in the first cooling water tank forms turbulence, the cooling water in each area is fully exchanged, the heat exchange efficiency is improved, the temperature difference between each area is reduced, the temperature of the cooling water is made more uniform, and the cooling effect on the gas in the air supply pipe is improved.

[0008] Furthermore, the first through holes are centrally symmetrically distributed on the edge of the water flow baffle, and a plurality of second through holes are centrally symmetrically distributed on the water flow baffle, and the number and diameter of the second through holes are the same as those of the gas pipes, and the plurality of gas pipes pass through the second through holes. The first through holes are centrally symmetrically distributed on the edge of the water flow baffle, which can generate turbulence from the center of the water flow baffle toward the edge, so that the cooling water in each area is more fully mixed and the temperature is more uniform; multiple gas pipes are provided to increase the total heat dissipation area of ​​the gas and enhance the cooling effect on the gas; the number and diameter of the second through holes are the same as those of the gas pipes, which can improve the sealing of the water flow baffle, prevent the cooling water from passing through the gap between the second through holes and the gas pipes, reduce the turbulence, and reduce the mixing speed of the cooling water and the heat exchange efficiency; the gas pipes and the second through holes are symmetrically arranged to make the gas heat dissipation more uniform.

[0009] Furthermore, the first cooling water tanks have at least two groups, and the air pipes in each group of first cooling water tanks are interconnected. By providing multiple groups of first cooling water tanks, the cooling effect of the airflow in the air pipe is further improved, the temperature of the airflow entering the fan is reduced, and the air cooling effect is improved.

[0010] Furthermore, it also includes a ventilation box, two groups of the ventilation boxes are respectively connected to the top and bottom of the first cooling water tank, the air pipe is connected to the ventilation box, the fan is installed on the ventilation box, and the air inlet of the fan is connected to the air pipe through the ventilation box. When the gas is transmitted between each group of first cooling water tanks, the airflow in each air pipe converges into the ventilation box and mixes with each other to make the gas temperature more uniform, and then it is diverted into the air pipeline of the next first cooling water tank for cooling, so as to avoid the gradual accumulation of temperature differences of the gas in different air pipes and improve the cooling effect.

[0011] Furthermore, multiple groups of the first cooling water tanks are stacked vertically, and the side of the ventilation box body at the bottom end of the lowest first cooling water tank is provided with an air suction port connected to the atmosphere, and the air suction port is connected to the air supply pipe. The vertical stacking of the first cooling water tanks can improve the space utilization rate of the device; when the fan is started, air is sucked into the air suction port, passes through the ventilation box body and enters the air supply pipe.

[0012] The utility model also provides an extruder barrel cooling system, comprising a water cooling device and the aforementioned air cooling device, wherein the water cooling device is installed on the barrel of the extruder, and the air outlet of the fan is opposite to the side wall of the barrel.

[0013] The extruder barrel cooling system of the utility model utilizes the air cooling device to cool the barrel, and at the same time, a water cooling device installed on the barrel exchanges heat with the barrel, and the cooling effect is further enhanced by combining air cooling with water cooling.

[0014] Furthermore, the water cooling device includes a cooling pipe, and the cooling pipe is wound on the side wall of the barrel. Cooling water flows in from one end of the cooling pipe, absorbs the heat of the barrel, and then flows out from the other end of the cooling pipe; the cooling pipe is installed on the barrel in a winding manner, which can increase the heat exchange area between the cooling pipe and the side wall of the barrel and improve the water cooling effect.

[0015] Furthermore, a heat-conducting layer is provided between the cooling tube and the barrel, and the heat-conducting layer can improve the heat dissipation efficiency of the barrel.

[0016] Furthermore, the water cooling device further comprises a second cooling water tank, the barrel is connected to the second cooling water tank, and a second water inlet and a second water outlet are provided on the wall of the second cooling water tank. Cooling water enters the second cooling water tank from the second water inlet, absorbs the heat emitted by the barrel, and then flows out of the second cooling water tank from the second water outlet, thereby achieving a cooling effect on the barrel.

[0017] Furthermore, the second cooling water tanks are two groups symmetrically arranged and fixedly connected, a cavity connected to the air outlet of the fan is formed between the two groups of second cooling water tanks, and the barrel is installed in the cavity. The barrel is installed between the opposite sides of the two second cooling water tanks, which can increase the heat exchange area and improve the heat exchange efficiency. At the same time, the cooling of the barrel side wall is more uniform, and the cooling effect of the barrel is improved; the cooling gas is blown into the cavity and contacts the barrel to further cool the barrel.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The air cooling device of the utility model can fully communicate with the cooling water in each area when cooling the air through cooling water, thereby improving the heat exchange efficiency, promoting the circulation of cooling water, and improving the cooling effect on the air;

[0020] The utility model discloses an extruder barrel cooling system, which combines an air cooling device with a water cooling device to cool the barrel together, thereby improving the cooling effect on the barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the air cooling device of the utility model;

[0022] Figure 2 This is a schematic diagram of the water flow baffle structure of the air cooling device of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the barrel cooling system of the extruder of the utility model;

[0024] Figure 4 Another structural schematic diagram of the extruder barrel cooling system of the utility model;

[0025] In the accompanying drawings: 1. first cooling water tank; 11. first water inlet; 12. first water outlet; 13. water flow baffle; 131. first through hole; 132. second through hole; 14. air pipe; 15. sealing plate; 16. water thermometer; 2. ventilation box; 21. connecting plate; 22. exhaust port; 3. fan; 31. flange; 32. ventilation duct; 4. barrel; 5. water cooling device; 55. cooling pipe; 56. second cooling water tank; 561. first water tank; 562. second water tank; 563. second water inlet; 564. second water outlet; 565. cavity; 566. third through hole; 57. wind hood; 571. fourth through hole. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] Embodiment 1

[0029] like Figure 1 to Figure 2 The first embodiment of the air cooling device of the utility model is shown, including a first cooling water tank 1, a water flow baffle 13, an air pipe 14 and a fan 3. A first water inlet 11 and a first water outlet 12 are provided on the wall of the first cooling water tank 1. The water flow baffle 13 is installed inside the first cooling water tank 1. The water flow baffle 13 is located between the first water inlet 11 and the first water outlet 12, and divides the internal space of the first cooling water tank 1 into several parts from top to bottom. Several first through holes 131 for cooling water to pass through are opened in the water flow baffle 13. The air pipe 14 passes through the first cooling water tank 1 and the water flow baffle 13. One end of the air pipe 14 is connected to the air inlet of the fan 3, and the other end is connected to the outside of the first cooling water tank 1.

[0030] The gas delivery pipe 14 is a stainless steel thin tube with good thermal conductivity, which can improve the heat exchange efficiency. The stainless steel material has strong corrosion resistance and can extend the service life of the air cooling device.

[0031] In the air cooling device of the utility model, the fan 3 sucks air from the air pipe 14 into the first cooling water tank 1, the cooling water flows into the first cooling water tank 1 from the first water inlet 11, contacts the air pipe 14, transfers the heat of the airflow in the air pipe 14 to the cooling water, reduces the temperature of the airflow, and the cooling water with increased temperature flows out from the first water outlet 12, the cooled air passes through the air pipe 14, and is guided to the cooling object via the fan 3, so that the cooling object is cooled; when the weather is hot, the cooling effect of the air is not good, and by water-cooling the airflow, it can be ensured that the air cooling effect is not adversely affected by the hot weather.

[0032] like Figure 1 and Figure 2 As shown, after the cooling water flows into the first cooling water tank 1 from the first water inlet 11, it is blocked by the water flow baffle 13 and can only flow to the first water outlet 12 along the first through hole 131 on the water flow baffle 13. After the cooling water fills the first cooling water tank 1, the cooling water in the first cooling water tank 1 forms turbulence, so that the cooling water in each area is fully mixed, reducing the temperature difference between each area, making the temperature of the cooling water more uniform, and transferring the heat of each part of the gas pipe 14 in time, thereby improving the cooling effect on the gas in the gas pipe 14.

[0033] In this embodiment, the first water inlet 11 is located at the bottom of the side wall of the first cooling water tank 1, and the first water outlet 12 is located at the top of the side wall of the first cooling water tank 1. The cooling water enters the first cooling water tank 1 through the first water inlet 11, fills the bottom of the first cooling water tank 1, and causes the water level to gradually rise and submerge the air pipe 14. After the water level is higher than the first water outlet 12, the cooling water flows out from the first water outlet 12. Compared with allowing the cooling water to flow from top to bottom, the flow rate required for the cooling water to flow from bottom to top to fill the first cooling water tank 1 is lower, and the water cost is low.

[0034] The first water inlet 11 and the first water outlet 12 are provided with a water thermometer 16 for measuring the temperature of the cooling water. The temperature of the cooling water and the cooling effect on the air can be monitored at any time. If the difference in the cooling water temperature between the first water inlet 11 and the first water outlet 12 does not meet the requirements, it means that the cooling effect of the air cooling device is not good and may need to be repaired.

[0035] like Figure 2 As shown, the first through holes 131 are centrally symmetrically distributed on the edge of the water flow baffle 13, and a plurality of second through holes 132 are centrally symmetrically distributed on the water flow baffle 13. The second through holes 132 are the same in number and diameter as the air pipes 14, and a plurality of the air pipes 14 pass through the second through holes 132.

[0036] The first through hole 131 is symmetrically distributed at the edge of the water flow baffle 13, so that the cooling water can only flow from the edge of the water flow baffle 13 through the water flow baffle 13 to the first water outlet 12. After the cooling water fills the cooling water tank, turbulence is generated from the center of the water flow baffle 13 toward the edge, so that the cooling water in each area is more fully mixed, the temperature of the cooling water is more uniform, and the cooling effect on the airflow is further improved; the diameter of the second through hole 132 is equal to the diameter of the air pipe 14, which can improve the sealing performance of the second through hole 132 and prevent the cooling water from passing through the gap between the second through hole 132 and the air pipe 14, so that the turbulence is weakened, resulting in a decrease in the mixing speed of the cooling water and a decrease in the heat exchange efficiency; multiple air pipes 14 are provided to increase the total heat dissipation area of ​​the gas and enhance the cooling effect on the gas; the air pipe 14 and the second through hole 132 are symmetrically arranged to make the gas heat dissipation more uniform.

[0037] In this embodiment, the first through hole 131 is semicircular and is spliced ​​with the side wall of the first cooling water tank 1 to form a completely closed through hole.

[0038] Embodiment 2

[0039] This embodiment is the second embodiment of the air cooling device of the utility model. This embodiment is similar to the first embodiment, except that: Figure 1 As shown, there are at least two groups of first cooling water tanks 1, and the air pipes 14 in each group of first cooling water tanks 1 are interconnected. By providing multiple groups of first cooling water tanks 1, the cooling effect of the airflow in the air pipe 14 is further improved, the temperature of the airflow entering the fan 3 is reduced, and the air cooling effect is improved.

[0040] A sealing plate 15 is provided on the top of each of the first cooling water tanks 1. The sealing plate 15 is provided with through holes of the same number as the air pipe 14. The diameter of the through holes is equal to the diameter of the air pipe 14 to ensure the sealing effect of the first cooling water tank 1, avoid cooling water overflowing from the top of the first cooling water tank 1, reduce the circulation speed of the cooling water, and affect the cooling effect.

[0041] The air cooling device in this embodiment also includes a ventilation box 2, two groups of the ventilation boxes 2 are respectively connected to the top and bottom of the first cooling water tank 1, the air pipe 14 is connected to the ventilation box 2, the fan 3 is installed on the ventilation box 2, and the air inlet of the fan 3 is connected to the air pipe 14 through the ventilation box 2. When the gas is transmitted between each group of first cooling water tanks 1, the airflow in each air pipe 14 converges into the ventilation box 2 and mixes with each other to make the gas temperature more uniform, and then the gas is diverted into the air pipe 14 of the next first cooling water tank 1 for cooling, so as to avoid the gradual accumulation of temperature differences of the gas in different air pipes 14; finally, the cooled gas is mixed in the ventilation box 2 and blown to the cooling object through the fan 3, so as to improve the cooling effect on the cooling object.

[0042] Multiple groups of the first cooling water tanks 1 are stacked vertically, and the side of the ventilation box body 2 at the bottom end of the lowest first cooling water tank 1 is provided with an air suction port 22 connected to the atmosphere, and the air suction port 22 is connected to the air supply pipe 14. The overlapping placement of the first cooling water tanks 1 can improve the space utilization of the device; when the fan 3 is started, air is sucked into the air suction port 22, passes through the ventilation box body 2 and enters the air supply pipe 14.

[0043] A first cooling water tank 1 and two ventilation boxes 2 connected to the top and bottom of the first cooling water tank 1 respectively form a cooling unit. The outer edges of the top and bottom of each cooling unit are each connected to an annular connecting plate 21. Two adjacent connecting plates 21 can be fixedly connected by bolts to fix the two cooling units. Installing the first cooling water tank 1 by bolt connection is conducive to quick disassembly and installation, and convenient replacement and maintenance.

[0044] The cooling unit at the bottom can be fixed to the working plane by bolt connection, so that the air cooling device is more stable and less prone to collapse accidents; in addition, a bracket can be set for fixing.

[0045] In this embodiment, the fan 3 is connected to the ventilation box 2 via a flange 31. The flange 31 connection design ensures a firm connection between the fan 3 and the ventilation box 2, while providing good sealing to avoid leakage of cooling gas and reduce the air cooling effect. Due to the modular structure of the flange 31 connection, disassembly and maintenance are simple; the structure is simple and the manufacturing cost is low.

[0046] Embodiment 3

[0047] This embodiment is a third embodiment of the extruder barrel cooling system, comprising a water cooling device 5 and an air cooling device as described in the first or second embodiment, wherein the water cooling device 5 is installed on the barrel 4 of the extruder, and the air outlet of the fan 3 is opposite to the side wall of the barrel 4. Figure 3 , Figure 4 shown.

[0048] The water cooling device 5 includes a cooling pipe 55, and the cooling pipe 55 is wound on the side wall of the barrel 4. Cooling water flows in from one end of the cooling pipe 55, absorbs the heat of the barrel 4, and then flows out from the other end of the cooling pipe 55; the cooling pipe 55 is installed on the barrel 4 in a winding manner, which can increase the heat exchange area between the cooling pipe 55 and the side wall of the barrel 4 and improve the water cooling effect.

[0049] The cooling pipe 55 is a stainless steel bellows with high heat resistance and corrosion resistance; it is not easy to deform or leak; it has a certain compressibility, which can effectively alleviate the vibration and impact of the pipeline connection, reduce the noise, wear and fatigue damage of the pipeline, and extend the service life of the water cooling device 5.

[0050] A heat-conducting layer is applied between the cooling tube 55 and the barrel 4. The heat-conducting layer can improve the heat dissipation efficiency of the barrel 4. In this embodiment, the heat-conducting layer is made of heat-conducting silicone grease material, which has a high thermal conductivity and is in a semi-liquid state. It can be applied very thinly and can be well filled in the gap between the barrel 4 and the cooling tube 55, so that the contact is better and the cost is relatively low.

[0051] The water cooling device 5 further includes a second cooling water tank 56, and the barrel 4 is connected to the second cooling water tank 56. A second water inlet 563 and a second water outlet 564 are provided on the wall of the second cooling water tank 56. Cooling water enters the second cooling water tank 56 from the second water inlet 563, absorbs the heat emitted by the barrel 4, and then flows out of the second cooling water tank 56 from the second water outlet 564, thereby achieving a cooling effect on the barrel 4.

[0052] The cooling water flowing in the first cooling water tank 1 and the second cooling water tank 56 can be adjusted according to the temperature and actual production needs. When the temperature is high, the cooling water is condensed and then passed into each water tank to reduce the temperature of the cooling gas. At the same time, the flow rate can be increased, the circulation speed can be accelerated, and the cooling effect can be improved. When the temperature is low, tap water at room temperature can be used directly to save energy consumption, reduce costs, and protect the environment.

[0053] Embodiment 4

[0054] This embodiment is the second embodiment of the extruder barrel cooling system. This embodiment is similar to the third embodiment, except that Figure 3 As shown, the second cooling water tanks 56 are symmetrically arranged and fixedly connected in two groups, and a cavity 565 connected to the air outlet of the fan 3 is formed between the two groups of second cooling water tanks 56 , and the barrel 4 is installed in the cavity 565 .

[0055] In this embodiment, a third through hole 566 is opened on the opposite side of the cavity 565 , and two ends of the barrel 4 pass through the third through hole 566 .

[0056] The two second cooling water tanks 56 are respectively recorded as the first water tank 561 and the second water tank 562. The cooling water flows through the first water tank 561 and the second water tank 562 independently, which increases the flow rate of the cooling water and improves the cooling effect. The barrel 4 is installed between the opposite sides of the first water tank 561 and the second water tank 561, which can increase the heat exchange area and improve the heat exchange efficiency. At the same time, the cooling of the side wall of the barrel 4 is more uniform, which improves the cooling effect of the barrel 4; the cooling gas enters the third through hole 566 from the fourth through hole 571 to further cool the barrel 4.

[0057] In this embodiment, the first water tank 561 and the second water tank 562 are independent of each other and can be disassembled, assembled and replaced as needed. The first water tank 561 and the second water tank 562 are connected by bolts.

[0058] Embodiment 5

[0059] This embodiment is the third embodiment of the extruder barrel cooling system of the utility model. This embodiment is similar to the fourth embodiment, except that: Figure 4 As shown, a hood 57 is also installed in the cavity 565. The hood 57 is a stainless steel thin shell. Both ends of the barrel 4 pass through the hood 57. The hood 57 fits tightly with the cavity 565 to ensure the heat transfer effect. A fourth through hole 571 is provided on the side of the hood 57 in the same direction as the air outlet of the fan 3. An opening for air to pass through is provided on the inner wall of the hood 57 opposite to the fourth through hole 571. The diameter of the opening is smaller than the opening diameter of the cavity 565, which can extend the residence time of the cooling gas in the hood 57, extend the contact time of the gas with the barrel 4, enhance the air cooling effect, and also prevent the gas from flowing too fast to affect the water cooling effect of the second cooling water tank 56.

[0060] A ventilation duct 32 is connected between the fan 3 and the fourth through hole 571. The diameter of the ventilation duct 32 is equal to or slightly larger than the diameter of the fourth through hole 571, thereby improving the sealing performance, preventing the cooling gas from escaping into the air, and improving the cooling effect.

[0061] In this embodiment, the ventilation duct 32 is connected to the fan 3 by bolts and to the wind cover 57 by screws, so that the water cooling device 5 is easier to install.

[0062] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An air cooling device, characterized in that: The invention comprises a first cooling water tank (1), a water flow baffle (13), an air pipe (14) and a fan (3); a first water inlet (11) and a first water outlet (12) are provided on the wall of the first cooling water tank (1); the water flow baffle (13) is installed inside the first cooling water tank (1); the water flow baffle (13) is located between the first water inlet (11) and the first water outlet (12), and divides the internal space of the first cooling water tank (1) into a plurality of parts in the upper and lower parts; a plurality of first through holes (131) are provided in the water flow baffle (13) for cooling water to pass through; the air pipe (14) passes through the first cooling water tank (1) and the water flow baffle (13); one end of the air pipe (14) is connected to the air inlet of the fan (3), and the other end is connected to the outside of the first cooling water tank (1).

2. The air cooling device according to claim 1, characterized in that: The first through holes (131) are centrally symmetrically distributed on the edge of the water flow baffle (13); a plurality of second through holes (132) are centrally symmetrically distributed on the water flow baffle (13); the second through holes (132) are the same in number and diameter as the gas pipes (14); and the plurality of gas pipes (14) pass through the second through holes (132).

3. The air cooling device according to claim 1, characterized in that: The first cooling water tanks (1) have at least two groups, and the air pipes (14) in each group of first cooling water tanks (1) are interconnected.

4. The air cooling device according to claim 3, characterized in that: It also includes a ventilation box (2), two groups of the ventilation boxes (2) are respectively connected to the top and bottom ends of the first cooling water tank (1), the air supply pipe (14) is connected to the ventilation box (2), the fan (3) is installed on the ventilation box (2), and the air inlet of the fan (3) is connected to the air supply pipe (14) through the ventilation box (2).

5. The air cooling device according to claim 4, characterized in that: A plurality of groups of the first cooling water tanks (1) are stacked vertically, and a side surface of the ventilation box body (2) at the bottom end of the lowest first cooling water tank (1) is provided with an exhaust port (22) connected to the atmosphere, and the exhaust port (22) is connected to the air supply pipe (14).

6. An extruder barrel cooling system, characterized in that: It comprises a water cooling device (5) and an air cooling device as described in any one of claims 1 to 5, wherein the water cooling device (5) is installed on the barrel (4) of the extruder, and the air outlet of the fan (3) is opposite to the side wall of the barrel (4).

7. The extruder barrel cooling system according to claim 6, characterized in that: The water cooling device (5) comprises a cooling pipe (55), and the cooling pipe (55) is wound around the side wall of the barrel (4).

8. The extruder barrel cooling system according to claim 7, characterized in that: A heat-conducting layer is provided between the cooling pipe (55) and the barrel (4).

9. The extruder barrel cooling system according to claim 6, characterized in that: The water cooling device (5) further comprises a second cooling water tank (56), the barrel (4) being connected to the second cooling water tank (56), and a second water inlet (563) and a second water outlet (564) being provided on the wall surface of the second cooling water tank (56).

10. The extruder barrel cooling system according to claim 9, characterized in that: The second cooling water tanks (56) are two groups that are symmetrically arranged and fixedly connected, and a cavity (565) that is connected to the air outlet of the fan (3) is formed between the two groups of second cooling water tanks (56), and the barrel (4) is installed in the cavity (565).

Images