Device for cooling a liquid and storing the cooled liquid

Abstract

The present invention relates to an apparatus (1) for cooling and storing a cooled liquid, comprising: an air cooler (2) and a liquid container (3), the air cooler (2) comprising a housing (4), a fan (5), at least one air duct (6) extending within the housing (4) of the air cooler (2), and a plurality of pipes (7) housed in the air duct (6), each pipe (7) having a liquid inlet (8) and a liquid outlet (9); the liquid container (3) having a liquid container inlet connected to the liquid outlet (9). The air duct (6) is provided with at least one front air vent (13) and at least one side air vent (14). The front air vent (13) is located on the front side (15) of the housing (4) opposite to the rear side (11). The at least one side air vent (14) is located on at least one side (16) of the housing (4) extending between the front side (15) and the rear side (11).

Description

Technical Field

[0001] This invention relates to an apparatus for cooling a liquid and storing the cooled liquid, comprising: An air cooler includes a housing, a fan rotatable about a fan axis, at least one air duct extending within the air cooler housing, and a plurality of pipes housed within the air duct, wherein each pipe for passing through a liquid to be cooled has a liquid inlet at one end and a liquid outlet at the other end. A liquid container having a liquid container inlet connected to a liquid outlet of a pipe in an air cooler. Background Technology

[0002] Such devices for cooling liquids and storing the cooled liquids are known in the prior art. For example, hot oil is cooled by air for use in machinery and stored in tanks for reuse.

[0003] AT 519397 A1 discloses a storage tank for storing liquids (particularly hydraulic oil). The tank is divided into two areas by a partition wall. Oil to be cooled is introduced into one area, and cooled oil is discharged from the other area if necessary. A cooling device is placed close to the partition wall, having at least one opening on one side of the tank for introducing the cooling medium and at least one additional opening on the other side for discharging the heated cooling medium. Furthermore, valves are provided on the partition wall for guiding cooling oil or high-viscosity oil through the cooling device. The disadvantage here is the need for a specially designed tank that houses the partition wall, cooling device, and valves. Summary of the Invention

[0004] The object of this invention is to provide an apparatus of the type described at the beginning for cooling and storing cooled liquids, which avoids or at least reduces the disadvantages known in the prior art. The apparatus should be designed to be as economical and efficient as possible. In particular, conventional liquid containers that require no modification should be suitable for the apparatus. Furthermore, the apparatus should achieve high cooling capacity with the least possible space requirements.

[0005] Therefore, the present invention provides an apparatus as described in claim 1. Advantageous embodiments and improvements are specifically described in the dependent claims.

[0006] Regarding an apparatus for cooling and storing a cooled liquid, the present invention comprises an air cooler housing with its rear side close to the outside of the liquid container. Each of the at least one air duct has at least one front air vent and at least one side air vent. The front air vent is located on the front side of the housing opposite the rear side, with a fan arranged on the front side. The at least one side air vent is located on at least one side of the housing, extending between the front and rear sides.

[0007] The device according to the invention thus has an air cooler for cooling a liquid and a liquid container for storing the liquid cooled by the air cooler. The air cooler has a housing, at least one air duct extending within the housing, and a plurality of pipes housed within the air duct. The air cooler also has a fan associated with the housing and rotatable about a fan axis, which, in operation of the device, generates airflow around the pipes within the air duct. The pipes are arranged to allow the liquid to be cooled to pass through, and each pipe has a liquid inlet at one end and a liquid outlet at the other end. The liquid container has a liquid container inlet fluidly connected to the liquid outlet of the air cooler's pipe, allowing the liquid cooled by the air cooler to flow from the pipe into the liquid container. In operation of the device, the liquid to be cooled is introduced into the pipes under pressure. For this purpose, a pressure generating device, such as a pump, can be provided within the housing of the device or located outside the housing as part of the external arrangement of the device. To save space as much as possible, the rear side of the housing of the air cooler is positioned close to the outer side of the liquid container. Therefore, the device does not require an air gap between the air cooler and the liquid container for the fan to draw in or exhaust air. Therefore, no air gap is provided between the air cooler and the liquid container. This allows the device to be designed to be particularly short in the longitudinal direction. To allow airflow through the at least one duct in a space-saving manner, each of the at least one duct has at least one front vent and at least one side vent. Therefore, the at least one duct is at an angle or curved (i.e., not straight) between the at least one front vent and the at least one side vent. Specifically, the duct can be deflected by approximately 90° between the at least one side vent and the front vent. There is usually sufficient space in front of the front and side vents for drawing in or expelling cooling air. In this case, the front vent is located on the front side of the housing opposite the rear side, where the fan is also arranged on the front side of the housing. This allows the front vent and fan to be large enough while the device structure remains relatively short. The at least one side vent is provided in at least one side of the housing in a space-saving manner, extending between the front and rear sides. When viewed along the fan axis and the air cooler is quadrilateral, the housing is designed to have four sides. The fan can be designed to draw in cooling air from a side vent to a front vent, or to draw in air through a front vent and exhaust it through a side vent. In either case, the deflection of at least one air duct effectively cools the liquid to be cooled in the duct. Furthermore, the air cooler is positioned outside the liquid container, allowing for the connection of a cost-effective liquid container to the air cooler.

[0008] If the description mentions position and orientation indicators such as "top," "bottom," "front," "rear," or "side," these indicators refer to the intended use of the equipment. The term "vertical" refers to the direction of gravity, i.e., from "top" to "bottom," and vice versa. If the equipment is to be used in different locations, the position and orientation information must be changed accordingly.

[0009] According to a preferred embodiment of the invention, two opposing sides of the housing are provided with two opposing side air vents. Therefore, compared to a single side air vent, the airflow through the at least one air duct and thus the cooling capacity of the air cooler can be improved. Furthermore, even if one of the side openings is completely or partially covered due to space constraints, liquid cooling can still be achieved. If only one air duct is provided, it has the two side air vents and the at least one front air vent. In this case, the single air duct is preferably T-shaped. On the other hand, if two air ducts are provided, for example separated by a partition wall, each air duct has one side air vent and a shared front air vent, or one of two independent front air vents.

[0010] To cool the liquid in the pipes particularly efficiently, the pipes can be arranged at a 90° angle to the fan axis. It is especially advantageous if the pipes are also arranged at a 90° angle to the line connecting the centers of the front and side air vents.

[0011] To influence airflow within a duct, and particularly to avoid unfavorable turbulence, it is advantageous to connect at least one air guiding element to at least one duct. The air guiding element can be designed as a flat plate extending in the same plane as the longitudinal axis of the duct, or in a plane parallel to the plane containing the longitudinal axis of the duct. Preferably, the air guiding element extends from the duct carrying it towards an adjacent duct. Furthermore, the air guiding element can extend along at least half the distance between two adjacent ducts.

[0012] To influence airflow within the duct as variably as possible, it is advantageous to connect the air guide element to the duct, making it adjustable, particularly rotatable about the duct's longitudinal axis. This allows the airflow to be advantageously adapted to the shape of the duct and the arrangement of the duct within it by adjusting the air guide element. For example, the air guide element may have a ring arranged around the duct or at least one retaining arm partially surrounding the duct. Therefore, the orientation of the air guide element can be changed even after the duct has been installed in the duct. The longitudinal axis of the duct extends along or opposite to the direction of liquid flow within the duct.

[0013] This is particularly advantageous if multiple ducts are each connected to at least one air guide element, and these air guide elements collectively define a flow path within the at least one duct. Therefore, by properly aligning the air guide elements, the flow path followed by the airflow can be easily adjusted. The flow path is preferably curved between the side vents and the front vents, and this curve is at least partially formed by the air guide elements. Advantageously, at least half of the ducts (preferably all ducts) are each connected to at least one air guide element.

[0014] If at least one pipe has a radiator installed on its outer side, the liquid inside the pipe can be cooled more effectively by airflow. The advantage of radiators is that they increase the surface area of ​​the pipe.

[0015] It is advantageous if the radiator is designed as a cooling plate, particularly a cooling pan, and its main surface preferably extends perpendicular to the longitudinal axis of the pipe. The radiators are preferably arranged at equal intervals along the pipe. At least one radiator, preferably all radiators, can be configured to extend around the longitudinal axis of the pipe.

[0016] To facilitate the connection between the air guide element and the duct, it is advantageous if the radiator is designed as a retaining device for the air guide element, and the air guide element is specifically designed as a plate with protruding teeth that engage between the radiator and the air guide element when it is connected to the duct. Thus, the teeth of the radiator and the air guide element form a plug-in connection, through which the air guide element can be plugged into the duct along with the radiator.

[0017] To efficiently transport the liquid to be cooled through the pipeline, it is preferable to connect the liquid inlet of the pipeline to the distribution container of the air cooler and the liquid outlet of the pipeline to the collection container of the air cooler. The distribution container has a liquid inlet, and the collection container has a liquid outlet. In this way, the liquid to be cooled can be introduced into the distribution container through the liquid inlet, flow from the distribution container through the pipeline, and enter the collection container in a cooled state. For this purpose, the distribution container is designed to distribute the liquid into the pipeline as evenly as possible, while the collection container is designed to collect the liquid flowing out of the pipeline and continue to transport it to the liquid container.

[0018] Preferably, the liquid container houses a filtration device having a filter inlet and a filter outlet, wherein the filter inlet is connected to the liquid outlet of the collection container, and the filter outlet is disposed inside the liquid container. Therefore, cooled liquid can flow from the collection container through the liquid outlet of the collection container and through the filter inlet into the filtration device, where it is filtered. The filtered liquid flows into the liquid container through the filter outlet at the end of the filtration device. Preferably, the filtration device is removably and re-insertable within the liquid container.

[0019] To prevent the forced flow of cool and viscous liquids through the pipes, the housing can be configured to house at least one bypass pipe with an inner diameter larger than the maximum inner diameter of the pipe. This bypass pipe is specifically positioned between and connected to the dispensing and collecting containers. Therefore, cool and viscous liquids, i.e., liquids with relatively high viscosity, which would not flow through the pipes or would only flow very slowly under the expected liquid pressure, can be guided around the pipes via the at least one bypass pipe. For this purpose, the inner diameter of the bypass pipe is larger than the maximum inner diameter of the pipe. For example, the inner diameter of the bypass pipe is 2 to 5 times the maximum inner diameter of the pipe.

[0020] It is advantageous if the bypass line is connected to the interior of the collection container via a valve (particularly a pressure reducing valve or a temperature-controlled valve). This valve can be specifically designed to open only under correspondingly high pressure applied by a cooled and viscous liquid or when the liquid temperature is low, thus opening the bypass path through the bypass line. Once a warmer, less viscous liquid enters the collection container or the bypass line, the valve closes the bypass. The valve preferably has a valve disc that is adjustable between a closed and open position and preloaded to the closed position by a spring.

[0021] A method for cooling a liquid and storing the cooled liquid includes at least the following steps: - Start the fan of the air cooler, which is rotatable about a fan axis and generates airflow in at least one air duct within the housing of the air cooler; - The liquid to be cooled is passed through a plurality of pipes housed in at least one of the air ducts; and - The liquid cooled by the air cooler is introduced into the liquid container through the liquid container inlet; The characteristic is that, - Before conveying the liquid to be cooled through pipes, the air cooler is positioned such that the rear side of its housing is located on and connected to the outside of the liquid container, and a liquid connection is established between the air cooler and the liquid container; and - An angled airflow is generated through a duct between at least one front vent on the front side of the housing and at least one side vent on at least one side of the housing by rotating a fan, wherein the front side of the housing is opposite to the rear side, and the at least one side of the housing extends between the front and rear sides.

[0022] Regarding the characteristics of this method, please refer to the preceding description of the device. This description should aid in understanding the method, and the characteristics of the method should be derived from the device description. Similarly, regarding the characteristics of the device, please refer to the method description.

[0023] Preferably, an angled airflow is generated between the two opposite side air vents on the two opposite sides of the housing and the at least one front air vent to achieve a higher airflow rate.

[0024] Preferably, the pipes are arranged at a 90° angle to the fan axis to improve cooling performance.

[0025] Preferably, at least one air guide element is connected to at least one duct, or the duct connected to at least one air guide element is introduced into the duct to appropriately limit the airflow through the duct.

[0026] The air guide element connected to the duct is preferably adjusted, in particular rotated about the longitudinal axis of the duct, in order to properly limit the airflow through the duct.

[0027] Preferably, the air guiding elements of multiple ducts together form a flow path in the at least one duct to appropriately limit the airflow through the duct.

[0028] Preferably, at least one pipe is introduced into the air duct, and a radiator is provided on the outside of the pipe.

[0029] Cooling plates, especially cooling trays, are preferably mounted on pipes as radiators, and their main surfaces preferably extend perpendicular to the longitudinal axis of the pipes.

[0030] Preferably, the air guide element is attached to the radiator, and in particular, the air guide element is designed as a plate having teeth protruding therefrom, which are inserted between the radiators to connect to the duct.

[0031] Preferably, the liquid to be cooled is introduced into the distribution container of the air cooler, distributed into various pipes through the liquid inlet of the pipes, and transported through these pipes to be cooled. The cooled liquid is then collected into the collection container of the air cooler through the liquid outlet of the pipes.

[0032] Preferably, the liquid cooled by the air cooler is filtered through a filter device contained in a liquid container. For this purpose, the filter inlet of the filter device is connected to the liquid outlet of the collection container, and the filter outlet of the filter device is arranged inside the liquid container.

[0033] Preferably, liquids with temperatures below a temperature limit or viscosity exceeding a viscosity limit are supplied through at least one bypass pipe housed within a housing, having an inner diameter greater than the maximum inner diameter of the pipe, and specifically positioned between and connected to the dispensing and collecting containers.

[0034] The bypass pipe is preferably connected to the inside of the collection container via a valve, especially a pressure reducing valve or a temperature control valve. Attached Figure Description

[0035] The invention will now be described in more detail based on preferred, non-limiting exemplary embodiments and with reference to the accompanying drawings. In the drawings: Figure 1 A first perspective view of an apparatus for cooling a liquid and storing the cooled liquid according to the present invention is shown. Figure 2 It shows the view from a perspective opposite to the first perspective. Figure 1 Second perspective view of the device in the image; Figure 3 Showing Figure 1 First side view of the device shown; Figure 4 Showing Figure 3 A cross-sectional view of the device along section AA; Figure 5 As shown above Figure 1 The device in; Figure 6 Showing Figure 5 A cross-sectional view of the device along section DD; Figure 7A A side view of the duct and its separate air guide element is shown; Figure 7B Showing Figure 7A A perspective view of the pipes and separate air guiding elements in the middle; Figure 7C This shows the adjacent states. Figure 7A A perspective view of the pipes and air guiding elements in the design; Figure 7D It shows that it is in an interlocked state. Figure 7A A perspective view of the pipes and air guiding elements in the design; Figure 8 This shows the view from a direction opposite to the first side view. Figure 1 Second side view of the device in the image; Figure 9 Showing Figure 8 A cross-sectional view of the device along section BB; Figure 10 Showing Figure 9 A magnified view of section C; Figure 11 Showing Figure 5 A sectional view of the device along section EE; Figure 12A A cross-sectional view of a portion of the bypass pipe is shown, with the valve inside the collection container in the open position; Figure 12B A cross-sectional view of a portion of the bypass pipe is shown, with the valve closed inside the collection container; and Figure 13 Showing Figure 1 Front view of the device shown. Detailed Implementation

[0036] Figure 1 and Figure 2 Two oblique views, taken from opposite directions, illustrate an apparatus 1 for cooling and storing a liquid. Apparatus 1 includes an air cooler 2 for cooling the liquid and a liquid container 3 for storing the cooled liquid. The air cooler 2 has a housing 4, a fan 5 preferably fixed to the housing 4 and rotatable about a fan axis X, and at least one air duct 6 extending within the housing 4 of the air cooler 2 (e.g., see...). Figure 4 , Figure 9 and Figure 10 ) and multiple pipes 7 housed within the air duct 6. Each pipe 7 has a liquid inlet 8 at one end and a liquid outlet 9 at the other end for the liquid to be cooled to pass through (see Figure 6 (Figures 7 and 12). Liquid container 3 has liquid container inlet 10 (see Figures 7 and 12). Figure 4 The liquid container inlet is connected to the liquid outlet 9 of the pipe 7 of the air cooler 2. Additionally, the liquid container 3 may also have a liquid container outlet (not shown) for discharging cooled liquid from the liquid container 3. The device 1 has a front end V, a rear end R, a longitudinal direction L, a height direction H, and a width direction B. To achieve a shorter design for the device 1, i.e., a smaller longitudinal extension along the longitudinal direction L, the rear side 11 of the housing 4 of the air cooler 2 is close to the outer side 12 of the liquid container 3. Figure 1In the example shown, the air cooler 2 and the liquid container 3 have the same cross-sectional shape in their adjacent areas. In other embodiments, the outer side 12 of the liquid container 3 (adjacent to the outer side 12 of the air cooler 2) may be designed to be larger or smaller than the rear side 11 of the housing 4, or may have a different shape than the rear side 11 of the housing 4. Thus, liquid containers 3 of different shapes can be connected to the air cooler 2. At least a portion, such as the entire rear side 11, of the housing 4 abuts against the outer side 12 of the liquid container 3. The rear side 11 may also be partially cut off, for example, by being formed by a circumferential frame. To effectively cool the liquid in the duct 7, each of the at least one air duct 6 is provided with at least one front air vent 13 and at least one side air vent 14. In the example shown in the figures, a single air duct 6 has exactly one front air vent 13 and two side air vents 14. The front air vent 13 is located on the front side 15 of the housing 4 opposite to the rear side 11, and the fan 5 is arranged on the front side 15. At least one side vent 14 is disposed in at least one side 16 of the housing 4, the side 16 extending between the front side 15 and the rear side 11. In the illustrated example, two opposing sides 16 of the housing 4 are provided with two opposing side vents 14. By activating the fan 5, a curved airflow LS through the duct can be generated between the side vent 14 and the front vent 13 (see in particular). Figure 10 The airflow cools the liquid in pipe 7. Then, the cooled liquid flows into liquid container 3 through liquid container inlet 10.

[0037] Figure 3 Device 1 is shown in a side view. Figure 5 The device 1 is shown in a top view.

[0038] Specifically, from Figure 4 and Figure 6 As can be clearly seen, duct 7 can be arranged at a 90° angle to the fan axis X. Duct 7 can also be arranged at a 90° angle to the connecting line connecting the two side air vents 14.

[0039] Figures 7A to 7D The duct 7 and the air guide element 17 are shown. Figure 7A and 7B In the image, the air guide element 17 and the duct 7 are shown separately. Figure 7C In the middle, the air guide element 17 has already come into contact with the pipe 7. Figure 7D As shown, at least one air guide element 17 is connected to at least one duct 7. In an embodiment not shown, at least one duct 7 may be connected to at least two air guide elements 17. According to... Figures 7A to 7DIn the example shown, the air guide element 17 can be adjusted to connect to the duct 7, particularly in a manner rotatable about the longitudinal axis A of the duct 7. A radiator 18 is provided on the outer side of the duct 7 shown in the example. In the example shown, the radiator 18 is designed as a cooling plate 18a, particularly a cooling disc 18b, whose main surface HF preferably extends perpendicular to the longitudinal axis A of the duct 7. Specifically, the radiators 18 are arranged parallel to each other and spaced apart, extending about the longitudinal axis A of the duct 7. To connect the air guide element 17 to the duct 7, particularly in an adjustable and rotatable manner, the radiator 18 is designed as a retaining device for the air guide element 17. The air guide element 17 is preferably designed as a plate having teeth 19 protruding from it. When the air guide element 17 is connected to the duct 7, the teeth 19 engage with the radiator 18, engaging between the radiators 18.

[0040] Figure 8 With Figure 3 The side view, taken from the opposite direction of observation, shows device 1.

[0041] Figure 9 and Figure 10 Symbolically, multiple ducts 7 are shown connected to at least one air guide element 17, and these air guide elements 17 collectively define a flow path 20 within the at least one air duct 6. Figure 10 In the example shown, fan 5 draws in air, so the airflow LS flows from side vent 14 to front vent 13 and is at least partially guided or deflected by air guide element 17. Figure 9 In the example shown, fan 5 can also draw in air from the front side 15 and exhaust it through the side vent 14, as indicated by the double arrows. When properly aligned, air guide elements 17 can reduce or prevent turbulence in the air duct 6, for example, behind the motor 21 of fan 5.

[0042] exist Figure 6 In the example shown, the liquid inlet 8 of pipe 7 is connected to the dispensing container 22 of air cooler 2, while the liquid outlet 9 of pipe 7 is connected to the collection container 23 of air cooler 2. Dispensing container 22 has a liquid inlet 24, for example in… Figure 1 , 3 As can be clearly seen in 4 and 5, the collection container 23 has a liquid outlet 25, which is in Figure 4 As can be clearly seen, the liquid to be cooled is introduced into the distribution container 22 through the liquid inlet 24. The liquid is distributed from the distribution container 22 into the pipe 7 and flows through the pipe 7. In the pipe 7, the liquid is cooled by the airflow LS generated by the fan 5. At the liquid outlet 9, the cooled liquid leaves the pipe 7 and enters the collection container 23. From the collection container 23, the liquid is introduced into the liquid container 3 through the liquid outlet 25 and the connected liquid container inlet 10.

[0043] exist Figure 4 , 5 In the example shown in Figure 6, the liquid container 3 contains a filter device 26 having a filter inlet 27 and a filter outlet 28. The filter inlet 27 is connected to the liquid outlet 25 of the collection container 23, while the filter outlet 28 is disposed inside the liquid container 3. The filter device 26 may have a filter container 29 containing a filter body 30 for filtering out unwanted foreign matter from the cooled liquid. Preferably, the filter body 30 is interchangeably inserted into the liquid container 3. The filter inlet 27 is preferably connected to the liquid container inlet 10 in a liquid-tight manner to reliably filter the cooled liquid before it is introduced into the liquid container 3. To enable the filter body 30 to be inserted into and removed from the filter container 29, the wall 31 of the liquid container 3 is preferably provided with an openable and reclosable filter container cover 32.

[0044] Figure 11 The filter device 26 is shown in enlarged view.

[0045] exist Figure 6 In the example shown, at least one bypass pipe 33 is housed within the housing 4. The inner diameter of the bypass pipe 33 is larger than the maximum inner diameter of the pipe 7, and the bypass pipe 33 is specifically positioned between and connected to the dispensing container 22 and the collecting container 23. The function of the bypass pipe 33 is to allow cold and viscous liquids that do not flow or only flow very slowly through the pipe 7 under the expected liquid pressure to flow from the dispensing container 22 to the collecting container 23 via the bypass pipe 33.

[0046] Figure 6 , 12A 12B also shows that the bypass pipe 33 is preferably connected to the interior 35 of the collection container 23 via a valve 34 (in particular a pressure reducing valve 34a or a temperature control valve 34b).

[0047] exist Figure 12A The diagram shows valve 34 in the open position, at which point cold and viscous liquid can flow from bypass pipe 33 into collection container 23.

[0048] exist Figure 12B The diagram shows valve 34 in the closed position, where no liquid flows through bypass pipe 33. Valve 34 preferably has a valve disc 36 that is adjustable between the closed and open positions and preloaded to the closed position by spring 37.

[0049] Figure 13 The front view of device 1 is shown, along with fan 5 and front vent 13. Figure 13 The fan 5 shown has a motor 21 and multiple fan blades 38.

Claims

1. An apparatus (1) for cooling a liquid and storing the cooled liquid, comprising: An air cooler (2) includes a housing (4), a fan (5) rotatable about a fan axis (X), at least one air duct (6) extending within the housing (4) of the air cooler (2), and a plurality of pipes (7) housed in the air duct (6), wherein each of the pipes (7) for passing through which the liquid to be cooled has a liquid inlet (8) at one end and a liquid outlet (9) at the other end. A liquid container (3) having a liquid container inlet (10) connected to the liquid outlet (9) of the pipe (7) of the air cooler (2). The characteristic is that, The rear side (11) of the housing (4) of the air cooler (2) is close to the outer side (12) of the liquid container (3), and Each of the at least one air duct (6) has at least one front air vent (13) and at least one side air vent (14). The front air vent (13) is disposed in the front side (15) of the housing (4) opposite to the rear side (11). The fan (5) is arranged on the front side (15). The at least one side air vent (14) is disposed in at least one side (16) of the housing (4). The side (16) extends between the front side (15) and the rear side (11).

2. The apparatus (1) according to claim 1, characterized in that, Two opposing side air vents (14) are provided in the two opposing sides (16) of the housing (4).

3. The apparatus (1) according to claim 1 or 2, characterized in that, The pipe (7) is arranged at a 90° angle to the fan axis (X).

4. The apparatus (1) according to any one of claims 1 to 3, characterized in that, At least one air guide element (17) is connected to at least one duct (7).

5. The apparatus (1) according to claim 4, characterized in that, The air guide element (17) is adjustablely connected to the duct (7), and in particular, it is rotatable about the longitudinal axis (A) of the duct (7).

6. The apparatus (1) according to claim 4 or 5, characterized in that, Multiple pipes (7) are connected to at least one air guide element (17), and the air guide element (17) together define a flow path (20) in the at least one air duct (6).

7. The apparatus (1) according to any one of claims 1 to 6, characterized in that, At least one pipe (7) has a radiator (18) arranged on its outer side.

8. The apparatus (1) according to claim 7, characterized in that, The radiator (18) is designed as a cooling plate (18a), and in particular a cooling tray (18b), the main surface (HF) of which preferably extends perpendicular to the longitudinal axis (A) of the pipe (7).

9. The apparatus (1) according to any one of claims 4 to 6 and any one of claims 7 or 8, characterized in that, The radiator (18) is designed as a holding device for the air guide element (17), and in particular, the air guide element (17) is designed as a plate having teeth (19) protruding therefrom, which engage between the radiator (18) when the air guide element (17) is connected to the duct (7).

10. The apparatus (1) according to any one of claims 1 to 9, characterized in that, The liquid inlet (8) of the pipe (7) is connected to the distribution container (22) of the air cooler (2), and the liquid outlet (9) of the pipe (7) is connected to the collection container (23) of the air cooler (2). The distribution container (22) has a liquid inlet (24), and the collection container (23) has a liquid outlet (25).

11. The apparatus (1) according to claim 10, characterized in that, The liquid container (3) contains a filter device (26) having a filter inlet (27) and a filter outlet (28), wherein the filter inlet (27) is connected to the liquid outlet (25) of the collection container (23), and the filter outlet (28) is disposed inside the liquid container (3).

12. The apparatus (1) according to claim 10 or 11, characterized in that, The housing (4) contains at least one bypass pipe (33) with an inner diameter greater than the maximum inner diameter of the pipe (7), and the bypass pipe (33) is specifically arranged between the dispensing container (22) and the collecting container (23) and connected to the dispensing container (22) and the collecting container (23).

13. The apparatus (1) according to claim 12, characterized in that, The bypass pipe (33) is connected to the interior (35) of the collection container (23) via a valve (34), particularly a pressure reducing valve (34a) or a temperature control valve (34b).

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