Dry cooler with uniform air inlet

Abstract

The utility model relates to the field of cooling equipment, and particularly discloses a dry cooler with uniform air intake, which comprises a frame, two cooling coil pipe modules symmetrically arranged in the frame, and an axial flow fan mounted at the upper end of the frame, and is characterized in that the cooling coil pipe modules are obliquely arranged, a drainage fan module is further mounted on the frame, and the axial flow fan is mounted on the drainage fan module. Each cooling coil module corresponds to one drainage fan module, the drainage fan modules and the cooling coil modules are arranged in parallel, each drainage fan module comprises an outer frame and a plurality of negative pressure fans which are located in the outer frame and distributed in an array mode, and the size of the drainage fan modules is the same as that of the cooling coil modules. By adopting the technical scheme, external air can be relatively uniformly introduced to penetrate through the cooling coil module through the plurality of negative pressure fans which are arranged in parallel, then the air exhausted by the negative pressure fans is exhausted through the axial flow fan, and due to the fact that the size of a single negative pressure fan is small, the induced air is relatively uniform.

Description

Technical Field

[0001] This application relates to the field of cooling equipment, and in particular to a dry cooler with uniform airflow. Background Technology

[0002] A dry cooler, also known as a dry-type cooler, does not consume water during its operation. Instead, it cools the liquid inside the pipes by allowing natural air to pass through, thereby lowering the liquid temperature and achieving the cooling purpose.

[0003] The main structure of existing dry coolers can be referred to as a multi-fan dry cooler disclosed in announcement number CN220493482U. The multi-fan dry cooler includes at least one row of fan units, cooling coils and partition plates. The fan units include multiple fans arranged side by side. The partition plates are arranged between two adjacent fans. The cooling coils are located at the air inlet of each fan.

[0004] Because its fan unit is at the top, the distance between it and the cooling coil is different, so the airflow is also different, which makes the air intake uniformity not high. Utility Model Content

[0005] To improve the problem of uneven air intake, this application provides a dry cooler with uniform air intake.

[0006] The dry cooler with uniform air intake provided in this application adopts the following technical solution:

[0007] A uniformly air-intake dry cooler includes a frame, two cooling coil modules symmetrically arranged within the frame, and an axial flow fan mounted on the upper end of the frame. The cooling coil modules are inclined. A diversion fan module is also mounted on the frame. Each cooling coil module corresponds to one diversion fan module. The diversion fan module is arranged parallel to the cooling coil modules. The diversion fan module includes an outer frame and a plurality of negative pressure fans arranged in an array within the outer frame. The size of the diversion fan module is the same as the size of the cooling coil module.

[0008] By adopting the above technical solution, external air can be introduced relatively evenly through the cooling coil module by several parallel negative pressure fans. Then, the air discharged by the negative pressure fans is discharged by the axial flow fans. Since the individual negative pressure fans are small in size, their air intake is relatively uniform.

[0009] Optionally, the upper end of the outer frame is hinged to the frame, and the frame has a drive device for driving the outer frame to rotate and lock. The drive device includes a telescopic rod, a moving block, a screw, a worm gear, and a worm. One end of the telescopic rod is hinged to the lower end of the outer frame, and the other end of the telescopic rod is hinged to the moving block. A slide rail is fixed on the frame, the moving block is slidably mounted on the slide rail, the screw is rotatably mounted on the frame, the screw passes through the moving block and is threadedly connected to the moving block, the worm gear is fixed to one end of the screw and coaxially mounted, and the worm meshes with the worm gear.

[0010] By adopting the above technical solution, the worm gear rotates, driving the worm wheel to rotate. The screw rotates synchronously with the worm wheel. Since the moving block is restricted by the slide rail, the movement of the moving block drives the telescopic rod to move, and the telescopic rod drives the outer frame to rotate, thereby adjusting the outer frame to make it parallel to the cooling coil module. During the translation of the moving block, the telescopic rod rotates and extends simultaneously. Since the worm gear has self-locking properties, no other locking structure is needed after rotation, making adjustment convenient.

[0011] Optionally, the two drive screws are fixedly connected together to form a bidirectional screw, a bearing housing is fixed on the frame, a bearing is installed in the bearing housing, and the bidirectional screw rotates synchronously with the inner ring of the bearing.

[0012] By adopting the above technical solution, the two threads can be connected into one, which can reduce the need for bearing housings and bearings, and reduce production costs.

[0013] Optionally, a guide plate is provided at one end of the two air intake fan modules that are close to each other. The guide plate is inclined and the inclination direction of the guide plate is opposite to that of the air intake fan module.

[0014] By adopting the above technical solution, since the two induced draft fan modules are close to each other at their ends, the air discharged by their negative pressure fans will interfere with each other. The guide plate is used to separate the air discharged by the air pressure fans of the two induced draft fan modules that are close to each other, and at the same time, it plays the role of guiding the air to the axial flow fan.

[0015] Optionally, the frame is fixed with positioning components and limiting components. The positioning components include a first positioning component and a second positioning component, which are arranged diagonally. Both the first positioning component and the second positioning component have positioning surfaces that abut against at least two adjacent surfaces of the cooling coil module. The limiting components are disposed on the first positioning component and / or the second positioning component.

[0016] By adopting the above technical solution, the cooling coil module can be quickly positioned by two diagonally arranged first and second positioning components, and then the cooling coil module can be limited by the limiting component, thus completing the installation of the cooling coil module quickly.

[0017] Optionally, the limiting component includes a limiting screw, which is threadedly connected to a first positioning component and / or a second positioning component, and the cooling coil module has a limiting groove corresponding to the limiting screw.

[0018] By adopting the above technical solution, after the cooling coil module is initially positioned by the first positioning component and the second positioning component, the cooling coil module is restricted from translation by rotating the limiting screw and inserting the end of the limiting screw into the limiting groove, thereby completing the installation of the cooling coil module.

[0019] Optionally, a third positioning element is also fixed on the frame, the third positioning element being located at the remaining corner of the upper end of the cooling coil module.

[0020] By adopting the above technical solution, the setting of the third positioning component further enhances the limiting effect on the cooling coil module.

[0021] Optionally, the height of the axial flow fan is higher than the height of the exhaust fan module, and a guide plate is fixed between the frame and the axial flow fan, with the guide plate extending along the air outlet direction of the exhaust fan module.

[0022] By adopting the above technical solution, the air discharged by the negative pressure fan at the top of the duct fan module flows along the guide plate (without interfering with the frame) so that it can be quickly discharged by the axial flow fan.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. This solution improves the uniformity of air intake by using several small-volume negative pressure fans arranged parallel to the cooling coil module;

[0025] 2. The worm gear drive allows for easy and quick adjustment of the parallelism between the exhaust fan module and the cooling coil module;

[0026] 3. The cooling coil mold is quickly installed using a combination of the first positioning component, the second positioning component, and the limiting component;

[0027] 4. The design of the guide plate and deflector reduces interference with the air discharged from the negative pressure fan, thus allowing it to be smoothly discharged by the axial flow fan. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the structure of the duct fan module.

[0030] Reference numerals: 1. Frame; 2. Cooling coil module; 3. Axial flow fan; 4. Drainage fan module; 5. Guide plate; 6. First positioning component; 7. Second positioning component; 8. Limiting screw; 9. Third positioning component; 10. Limiting groove; 11. Outer frame; 12. Negative pressure fan; 13. Telescopic rod; 14. Moving block; 15. Screw; 16. Worm gear; 17. Worm; 18. Slide rail; 19. Bearing seat; 20. Guide plate; 21. U-shaped frame. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0032] This application discloses a uniformly air-intake dry cooler, including a frame 1, two cooling coil modules 2 symmetrically arranged within the frame 1, and an axial flow fan 3 mounted on the upper end of the frame 1. The cooling coil modules 2 are inclined at an angle of 70 degrees. A diversion fan module 4 is also mounted on the frame 1, with one diversion fan module 4 corresponding to each cooling coil module 2. The diversion fan modules 4 are arranged parallel to the cooling coil modules 2, with the two diversion fan modules 4 located between the two cooling coil modules 2. The size of the diversion fan module 4 is the same as that of the cooling coil modules 2, and the height of the diversion fan module 4 is appropriately higher than the height of the cooling coil modules 2. The height of the axial flow fan 3 is higher than the height of the diversion fan module 4, and a guide plate 5 is fixed on the frame 1. The guide plate 5 extends along the air outlet direction of the diversion fan module 4 and extends outward from the top of the outer frame 11. The axial flow fan 3 is installed at the top of the guide plate 5.

[0033] The cooling coil module 2 mainly consists of a rectangular frame and a coil that bends back and forth within the rectangular frame. Since this is existing technology, it will not be described in detail further. Refer to the patent technology in the background section for further information.

[0034] A positioning component and a limiting component are fixed on the frame 1. The positioning component includes a first positioning component 6 and a second positioning component 7, which are diagonally arranged. Both the first positioning component 6 and the second positioning component 7 have positioning surfaces that abut against at least two adjacent surfaces of the cooling coil module 2. The limiting component is set on the first positioning component 6 and / or the second positioning component 7. Specifically, the positioning surface is L-shaped and matches the rectangular frame. The first positioning component 6 is located above the cooling coil module 2, and the second positioning component 7 is located below the cooling coil module 2. In this embodiment, the limiting component is located on the second positioning component 7. The limiting component includes a limiting screw 158, which is threadedly connected to the second positioning component 7. The end of the limiting screw 158 has a smooth structure. The rectangular frame of the cooling coil module 2 has a limiting groove 10 corresponding to the limiting screw 158. The limiting groove 10 corresponds to the smooth structure of the limiting screw 158 and is a circular limiting groove 10. A third positioning component 9 is also fixed to the frame 1, and the third positioning component 9 is located at the remaining corner of the upper end of the cooling coil module 2. The first positioning component 6, the second positioning component 7 and the third positioning component 9 are all welded to the frame 1.

[0035] The exhaust fan module 4 includes an outer frame 11 and several arrayed negative pressure fans 12 located within the outer frame 11. The outer frame 11 is a rectangular frame, and the frame of each negative pressure fan 12 is a square frame 1. Adjacent negative pressure fans 12 are connected by bolts and nuts, or they can be directly welded. The negative pressure fans 12 and the outer frame 11 can also be connected by either welding or bolts and nuts.

[0036] The upper end of the outer frame 11 is hinged to the frame 1, and the frame 1 has a drive device for driving and locking the outer frame 11. The drive device includes a telescopic rod 13, a moving block 14, a screw 15, a worm gear 16, and a worm 17. One end of the telescopic rod 13 is hinged to the lower end of the outer frame 11, and the other end of the telescopic rod 13 is hinged to the moving block 14. A slide rail 18 is fixed on the frame 1, the moving block 14 is slidably mounted on the slide rail 18, and the screw 15 is rotatably mounted on the frame 1. The screw 15 passes through the moving block 14 and is threadedly connected to the moving block 14. The worm gear 16 is fixed to one end of the screw 15 and is coaxially mounted, and the worm 17 meshes with the worm gear 16. In one configuration, two sets of drive devices are directly installed, each corresponding to one of the two induced draft fan modules 4. For a simpler structure, in another embodiment, the screws 15 of the two drive devices are fixedly connected together to form a bidirectional screw 15. A bearing seat 19 is fixed on the frame 1, and a bearing is installed in the bearing seat 19. The bidirectional screw 15 rotates synchronously with the inner ring of the bearing through an interference fit or a key connection. In this way, only one set of worm gear 16 and worm 17 can be set.

[0037] The bottom spacing of the induced draft fan module 4 is the smallest, and the top spacing is the largest. The air discharged by the negative pressure fan 12 at the bottom is prone to mutual interference. Therefore, a guide plate 20 is set at the end of the induced draft fan module 4 that is close to each other (the bottom of the induced draft fan module 4). The two guide plates 20 are connected to form an inverted V-shaped structure. The bottom of the V-shaped structure is fixedly connected to a U-shaped frame 21. The U-shaped frame 21 is welded or bolted to the frame 1.

[0038] The implementation principle of a uniformly air-intake dry cooler in this application embodiment is as follows: external air can be introduced relatively evenly through the cooling coil module 2 by several parallel negative pressure fans 12, and then the air discharged by the negative pressure fans 12 is discharged by the axial flow fan 3. Since the negative pressure fans 12 are small in size, their air intake is relatively uniform.

[0039] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A uniformly air-intake dry cooler, comprising a frame, two cooling coil modules symmetrically arranged within the frame, and an axial flow fan mounted on the upper end of the frame, characterized in that: The cooling coil module is inclined, and a duct fan module is also installed on the frame. Each cooling coil module corresponds to one duct fan module. The duct fan module is arranged parallel to the cooling coil module. The duct fan module includes an outer frame and several arrayed negative pressure fans located within the outer frame. The size of the duct fan module is the same as the size of the cooling coil module.

2. The uniformly air-intake dry cooler according to claim 1, characterized in that: The upper end of the outer frame is hinged to the frame, and the frame has a drive device that drives the outer frame to rotate and lock.

3. A dry cooler with uniform air intake according to claim 2, characterized in that: The driving device includes a telescopic rod, a moving block, a screw, a worm gear, and a worm. One end of the telescopic rod is hinged to the lower end of the outer frame, and the other end of the telescopic rod is hinged to the moving block. A slide rail is fixed on the frame, and the moving block is slidably mounted on the slide rail. The screw is rotatably mounted on the frame and passes through the moving block, which is threadedly connected to it. The worm gear is fixed to one end of the screw and is coaxially mounted, and the worm meshes with the worm gear.

4. A dry cooler with uniform air intake according to claim 3, characterized in that: The two drive screws are fixedly connected together to form a bidirectional screw. A bearing housing is fixed on the frame, and a bearing is installed inside the bearing housing. The bidirectional screw rotates synchronously with the inner ring of the bearing.

5. A dry cooler with uniform air intake according to claim 1, characterized in that: Two of the aforementioned air intake fan modules are provided with guide plates at their ends that are close to each other. The guide plates are inclined and the inclination direction of the guide plates is opposite to that of the air intake fan modules.

6. A dry cooler with uniform air intake according to claim 1, characterized in that: The frame is fixed with positioning components and limiting components. The positioning components include a first positioning component and a second positioning component, which are arranged diagonally. Both the first positioning component and the second positioning component have positioning surfaces that abut against at least two adjacent surfaces of the cooling coil module. The limiting components are provided on the first positioning component and / or the second positioning component.

7. A dry cooler with uniform air intake according to claim 6, characterized in that: The limiting component includes a limiting screw, which is threadedly connected to a first positioning component and / or a second positioning component, and the cooling coil module has a limiting groove corresponding to the limiting screw.

8. A dry cooler with uniform air intake according to claim 6, characterized in that: A third positioning component is also fixed to the frame, and the third positioning component is located at the remaining corner of the upper end of the cooling coil module.

9. A dry cooler with uniform air intake according to claim 1, characterized in that: The height of the axial flow fan is higher than that of the exhaust fan module, and a guide plate is fixed between the frame and the axial flow fan, with the guide plate extending along the air outlet direction of the exhaust fan module.

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