Air cooler tube bundle

Abstract

The invention provides an air cooler tube bundle, which belongs to the technical field of air coolers, and comprises a plurality of tube bundle main bodies, two opposite main frames, two opposite connecting frames, a self-adaptive flow guide assembly and a cleaning assembly, through the action of air on the filter frame, the distance between an airflow circulation path and the air and the main pipe is changed, airflow is disturbed, the retention time of the air outside the pipe bundle is prolonged, heat exchange is enhanced, meanwhile, the filter groove is matched with the filter screen plate, the influence of impurities on heat exchange is reduced, and the heat exchange efficiency of the air cooler is improved; when the fan runs, airflow flowing through the filter frame drives the sweeping assembly to work and drives the connecting rod and the wiping block to do circular motion along the outer side of the main pipe, outer-layer fiber fabric of the wiping block adsorbs dust on the outer side wall of the main pipe, dust accumulation is prevented from affecting heat exchange, and an inner-side metal frame provides structural support and promotes heat dissipation. And when the wiping blocks rotate, airflow is disturbed, the airflow direction is changed, heat exchange of the outer surfaces of the main pipes is more uniform, and the heat exchange effect of the whole air cooler tube bundle is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air coolers, and in particular to an air cooler tube bundle. Background Art

[0002] Air cooler, also known as air cooler, is a device that uses air as a cooling medium. As its core component, the air cooler tube bundle plays a vital role in the heat exchange process. Its technological innovation and development have become the key to improving the overall performance of the air cooler.

[0003] In the relevant technical field, many researchers and enterprises are constantly committed to the research, development and improvement of air cooler tube bundles. The early air cooler tube bundle structure was relatively simple, mainly based on bare tube bundles. Its heat exchange efficiency was insufficient in the face of the growing industrial cooling demand. With the continuous advancement of science and technology, finned tube bundles have gradually been widely used. By adding fins to the surface of the bare tube, the heat exchange area on the air side is effectively expanded, and the heat exchange efficiency is improved to a certain extent. However, the existing finned tube bundles still have many shortcomings. For example, in actual operation, the flow distribution of air on the surface of the tube bundle is often not uniform, resulting in excessive heat exchange in some areas and insufficient heat exchange in some areas. This uneven heat exchange phenomenon seriously restricts the improvement of the overall heat exchange performance of the air cooler. At the same time, dust, impurities and other dirt are easily accumulated on the surface of the tube bundle. The presence of the dirt layer greatly increases the thermal resistance and reduces the heat transfer efficiency.

[0004] How to invent an air cooler tube bundle to solve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In order to make up for the above deficiencies, the present invention provides an air cooler tube bundle, aiming to solve the problems mentioned in the above background.

[0006] The present invention is achieved in that: The present invention provides an air cooler tube bundle, comprising a plurality of tube bundle bodies and two oppositely arranged main frames and a connecting frame, wherein the main frames are provided with a plurality of mounting holes, the inner sides of the upper and lower ends of the main frames are welded and connected to the ends of the connecting frames, the tube bundle body is composed of a main pipe, a transfer U-shaped pipe and a connecting pipe, the main pipe is installed between the two main frames after passing through the mounting hole, the adjacent ends of the main pipes are connected through the transfer U-shaped pipe, the ends of the main pipes located at the uppermost side and the lowermost side are connected to the connecting pipe, the end of the connecting pipe located at the upper side is connected to a water inlet pipe, and the end of the connecting pipe located at the lower side is connected to a water outlet pipe, and further comprising: Adaptive flow guide assembly: The adaptive flow guide assembly is arranged on the main pipe, and is used to prolong the time that the airflow stays outside the pipe bundle, and can change the flow path of the wind force according to the wind force of the air cooler fan; Cleaning component: The cleaning component is arranged between the adaptive flow guide component and the main pipe, and the cleaning component can clean the dust on the main pipe when the fan is working.

[0007] Preferably, the adaptive flow guide assembly includes a support structure, an upper filter frame and a lower filter frame, the support structure is composed of a mounting ring and a support rod, the support rod is fixedly connected to the mounting ring as a whole, a sliding cavity is opened inside the support rod, a sliding column and a spring are arranged in the sliding cavity, the end of the sliding column passes through the top wall of the support rod and extends to the outside of the support rod, the spring is sleeved on the outside of the sliding column located in the sliding cavity, and the upper end of the support rod points in the same direction as the flow direction of the wind force of the fan.

[0008] Preferably, the support structure is fixedly mounted on the main pipe and close to the end of the main pipe, the number of support structures on the same main pipe is two, the end of the sliding column located outside the support rod is fixedly connected to the lower side of the upper filter frame, and the side wall of the upper filter frame between the two support structures is fixedly connected to the lower filter frame.

[0009] Preferably, the cross-section of the upper filter frame is U-shaped, and the lower filter frame is a box-shaped structure with a hollow top. Filter grooves are provided on the top wall of the upper filter frame and the bottom wall of the lower filter frame. The filter grooves on the upper filter frame and the lower filter frame are staggered, and filter mesh plates are attached to the outer sides of the filter grooves.

[0010] Preferably, in the initial state, the bottom of the sliding column abuts against the bottom of the sliding cavity, and there is a gap between the upper end of the upper filter frame and the main pipe above it.

[0011] Preferably, the adaptive flow guide assembly is pre-installed on the main pipe, and then the main pipe is installed on the main frame through the installation hole, and then the transfer U-shaped pipe and the connecting pipe are welded, and finally the inlet pipe and the outlet pipe are welded and connected with the corresponding connecting pipes.

[0012] Preferably, the cleaning assembly includes an air collecting groove, a main air intake pipeline, a rotating mechanism, a connecting rod, a wiping block, an air guide channel opened in a sliding column, and an annular cavity opened in a mounting ring. The rotating mechanism is rotatably arranged in the annular cavity. The air collecting groove and the main air intake pipeline are both opened on the top wall of the upper filter frame and are arranged close to the mounting ring. The air collecting groove is connected to the main air intake pipeline, and the end of the main air intake pipeline away from the air collecting groove passes through the side wall of the upper filter frame. The end of the air guide channel passes through the upper and lower side walls of the sliding column. A notch matching the air guide channel is opened at the bottom of the sliding cavity, and the sliding cavity is connected to the annular cavity through the notch.

[0013] Preferably, the end of the main air intake pipeline away from the air collecting tank is connected to the upper end of the air guide channel, and side air intake pipelines are opened on both sides of the main air intake pipeline. One end of the side air intake pipeline passes through the side wall of the air collecting tank, and the other end passes through the side wall of the main air intake pipeline.

[0014] Preferably, the rotating mechanism consists of a ferrule, two limit rings and a plurality of baffles, the limit rings and the baffles are both fixed on the ferrule, the limit rings are located on both sides of the ferrule, the baffle is located between the two limit rings, the limit rings abut against the side walls of the annular cavity, there is a gap between the baffle and the inner wall of the annular cavity, a limit ring groove is provided on the side wall of the mounting ring facing the lower filter frame, the side wall of the limit ring facing the lower filter frame is fixedly connected to a connecting rod, the connecting rod is matched with the limit ring groove, a mounting groove is provided on the upper end of the wiping block, the wiping block is mounted on the connecting rod by clamping the mounting groove, and the bottom of the wiping block abuts against the outer wall of the main pipe.

[0015] Preferably, the inner frame of the wiping block is of metal structure, and the outer layer is wrapped with fiber fabric treated with anti-hair removal, and the frame is designed to have a concave-convex structure matching the shape of the main pipe.

[0016] The beneficial effects of the present invention are: When the wind force changes, the air acts on the filter frame (upper filter frame and lower filter frame) to drive the sliding column and the filter frame to move, change the airflow path and the distance between the air and the main pipe, disturb the airflow to prolong the air stay time outside the tube bundle, and enhance the heat exchange. At the same time, the filter slot and the filter plate cooperate to filter air impurities under different wind conditions, maintain air cleanliness, reduce the adverse effects of impurities on heat exchange, and effectively improve the heat exchange efficiency of the air cooler under different working conditions; when the fan is running, the airflow flowing through the filter frame drives the cleaning component to work, promotes the rotation mechanism to rotate, and then drives the connecting rod and the wiping block to move in a circle along the outside of the main pipe. The outer fiber fabric of the wiping block absorbs dust on the outer wall of the main pipe to prevent dust accumulation from affecting heat exchange. The inner metal frame provides structural support and promotes heat dissipation. When the wiping block rotates, it disturbs the airflow and changes the airflow direction, making the heat exchange on the outer surface of the main pipe more uniform, thereby improving the heat exchange effect of the entire air cooler tube bundle, reducing the performance degradation and maintenance requirements caused by dust and uneven heat exchange, and improving the overall reliability and economy of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of an air cooler tube bundle provided by the present invention; Figure 2 This is a schematic diagram of the front view structure of an air cooler tube bundle provided by the present invention; Figure 3 This is a schematic diagram of the local structure of an air cooler tube bundle provided by the present invention; Figure 4 This is a schematic diagram of the installation direction structure of an air cooler tube bundle provided by the present invention; Figure 5 It is a schematic diagram of the structure of an air cooler tube bundle main body and an adaptive flow guide assembly provided by the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of a main tube of an air cooler tube bundle provided by the present invention; Figure 7 The present invention provides an air cooler tube bundle Figure 6 The enlarged structural diagram at A in the middle; Figure 8 This is a schematic diagram of a cross-sectional structure of an air cooler tube bundle support structure provided by the present invention; Fig. 9 The present invention provides an air cooler tube bundle Figure 8 The enlarged structural diagram at B in the middle; Fig.10 This is a schematic diagram of the structure of an upper filter frame and a lower filter frame of an air cooler tube bundle provided by the present invention; Fig.11 It is a schematic diagram of an air cooler tube bundle airflow passing through an upper filter frame and a lower filter frame provided by the present invention; Fig.12 It is a schematic diagram of air flow of an air cooler tube bundle provided by the present invention when it is working; Fig.13 This is a schematic diagram of the initial state structure of an air cooler tube bundle provided by the present invention; Fig.14 The present invention is a schematic diagram of the structure of an air cooler tube bundle when in operation.

[0019] In the figure: 1. tube bundle body; 2. water inlet pipe; 3. main frame; 4. supporting structure; 5. upper filter frame; 6. sliding column; 7. rotating mechanism; 8. air collecting tank; 9. connecting rod; 11. main pipe; 12. transfer U-shaped pipe; 13. connecting pipe; 21. water outlet pipe; 30. mounting hole; 31. connecting frame; 41. mounting ring; 42. support rod; 43. limiting ring groove; 51. lower filter frame; 52. filter tank; 61. air guide channel; 62. spring; 71. ferrule; 72. limiting ring; 73. baffle; 81. main air inlet pipeline; 82. side air inlet pipeline; 91. wiping block; 421. sliding cavity. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1, refer to Figure 1-Figure 14 A tube bundle of an air cooler includes a plurality of tube bundle bodies 1 and two oppositely arranged main frames 3 and a connecting frame 31. The main frame 3 is provided with a plurality of mounting holes 30. The inner sides of the upper and lower ends of the main frame 3 are welded to the ends of the connecting frame 31. The inner sides of the upper and lower ends of the main frame 3 and the ends of the connecting frame 31 are welded together to form a solid frame structure. This frame can effectively support the tube bundle body 1, bear the weight of the tube bundle, the pressure of the internal fluid and the possible external impact force (such as wind, vibration, etc.), and ensure the structural stability of the air cooler tube bundle during operation. The tube bundle body 1 is composed of a main pipe 11, a transfer U-shaped pipe 12 and a connecting pipe 13. The main pipe 11 is installed between the two main frames 3 after passing through the mounting hole 30. The ends of the adjacent main pipes 11 are connected to each other. The ends of the main pipes 11 at the uppermost and lowermost sides are connected to the connecting pipe 13. The end of the connecting pipe 13 at the upper side is connected to the water inlet pipe 2, and the end of the connecting pipe 13 at the lower side is connected to the water outlet pipe 21. The main pipe 11 is the main heat exchange channel, carrying the fluid to be cooled. The existence of the transfer U-shaped pipe 12 ensures that the fluid between adjacent main pipes 11 can be smoothly connected, so that the fluid is evenly distributed in the entire tube bundle body 1, avoiding local overheating or uneven cooling. The connecting pipe 13 is respectively connected to the uppermost and lowermost main pipes 11, one end is connected to the water inlet pipe 2, and the other end is connected to the water outlet pipe 21, thereby providing a complete inlet and outlet path for the fluid, ensuring the basic heat exchange function of the air cooler tube bundle, and also includes: Adaptive flow guide assembly: The adaptive flow guide assembly is arranged on the main pipe 11, and is used to prolong the time that the airflow stays outside the pipe bundle, and can change the flow path of the wind according to the wind force of the air cooler fan; Cleaning component: The cleaning component is arranged between the adaptive flow guide component and the main pipe 11, and the cleaning component can clean the dust on the main pipe 11 when the fan is working.

[0022] Furthermore, the adaptive flow guide assembly includes a support structure 4, an upper filter frame 5 and a lower filter frame 51. The support structure 4 is composed of a mounting ring 41 and a support rod 42. The support rod 42 is fixedly connected to the mounting ring 41 as a whole. A sliding cavity 421 is opened inside the support rod 42. A sliding column 6 and a spring 62 are arranged in the sliding cavity 421. The end of the sliding column 6 passes through the top wall of the support rod 42 and extends to the outside of the support rod 42. The spring 62 is sleeved on the outside of the sliding column 6 located in the sliding cavity 421. The upper end of the support rod 42 points in the same direction as the flow direction of the wind force of the fan.

[0023] The support structure 4 is fixedly mounted on the main pipe 11 and is close to the end of the main pipe 11. There are two support structures 4 on the same main pipe 11. The end of the sliding column 6 located outside the support rod 42 is fixedly connected to the lower side of the upper filter frame 5. The side wall of the upper filter frame 5 between the two support structures 4 is fixedly connected to the lower filter frame 51.

[0024] The adaptive flow guide assembly is pre-installed on the main pipe 11, and then the main pipe 11 is installed on the main frame 3 through the installation hole 30, and then the transfer U-shaped pipe 12 and the connecting pipe 13 are welded, and finally the water inlet pipe 2 and the water outlet pipe 21 are welded and connected with the corresponding connecting pipe 13. The multiple installation holes 30 on the main frame 3 provide a precise installation position for the main pipe 11 in the tube bundle body 1, so that the main pipe 11 can be neatly and firmly arranged between the two main frames 3. This installation method is convenient for the assembly and positioning of the tube bundle, and is also conducive to subsequent maintenance and overhaul.

[0025] It should be noted that the cross-section of the upper filter frame 5 is U-shaped, and the lower filter frame 51 is a box-shaped structure with a hollow top. Their shapes and relative positions require the air to bypass these structures when flowing through, thereby changing the direction and speed of the airflow. Filter slots 52 are provided on the top wall of the upper filter frame 5 and the bottom wall of the lower filter frame 51. The filter slots 52 on the upper filter frame 5 and the lower filter frame 51 are staggered. When the air flows through the upper filter frame 5 and the lower filter frame 51, the staggered filter slots 52 require the air to change its flow direction, and the air needs to spend more time to pass through, so that there is more time to exchange heat with the tube bundle, thereby improving the air cooling. In order to improve the heat exchange efficiency of the tube bundle, a filter plate is attached to the outside of the filter tank 52. When the air contains tiny sand particles or fine dust in an industrial production environment, the filter plate can effectively intercept these tiny impurities on the outside of the filter tank 52. When the filtration system needs to be cleaned, the filter plate is relatively easier to disassemble and clean. Compared with directly cleaning the inside of the filter tank 52, cleaning the filter plate is easier. The filter plate can be removed regularly and maintained by flushing, blowing or replacing the filter. This can reduce the impact on the structure of the filter tank 52 while ensuring the filtering effect, thereby reducing maintenance costs and time.

[0026] In the initial state, the bottom of the sliding column 6 is against the bottom of the sliding cavity 421, and there is a gap between the upper end of the upper filter frame 5 and the main pipe 11 above it. When the wind force of the fan changes, the positions of the upper filter frame 5 and the lower filter frame 51 will also change accordingly, further disrupting the airflow and extending the residence time of the airflow outside the tube bundle, so that the air and the tube bundle body 1 can more fully exchange heat, thereby improving the cooling efficiency of the air cooler tube bundle.

[0027] In this embodiment, first, the main pipes 11 of the plurality of tube bundle bodies 1 are inserted through the mounting holes 30 on the main frames 3, so that the main pipes 11 are neatly arranged between the two main frames 3. This installation method of the main pipes 11 utilizes the positioning function of the mounting holes 30 to ensure that the position of each main pipe 11 is accurate and stable. Then, the ends of the adjacent main pipes 11 are connected through the transfer U-shaped pipe 12, so that the fluid can flow evenly between the plurality of main pipes 11. The ends of the main pipes 11 located at the uppermost and lowermost sides are connected to the connecting pipe 13, and the connecting pipe 13 is respectively connected to the water inlet pipe 2 and the water outlet pipe 21, thereby forming a complete fluid channel. This connection method ensures that the fluid can smoothly enter the tube bundle body 1 from the water inlet pipe 2, be distributed through the main pipe 11 and the transfer U-shaped pipe 12, and finally flow out from the water outlet pipe 21, thereby realizing the fluid circulation path required for the basic heat exchange function of the air cooler tube bundle.

[0028] The adaptive flow guide component is pre-installed on the main pipe 11, specifically, it is fixed at a position near the end of the main pipe 11 by the mounting ring 41 of the support structure 4, and two support structures 4 are installed on each main pipe 11. The mounting ring 41 ensures that the adaptive flow guide component is tightly connected to the main pipe 11, providing a stable foundation for subsequent work. The support rod 42 in the support structure 4 is fixedly connected to the mounting ring 41 as a whole. The combination of the sliding cavity 421, the sliding column 6 and the spring 62 inside the support rod 42 prepares for the position adjustment of the upper filter frame 5. The end of the sliding column 6 located outside the support rod 42 is fixedly connected to the lower side of the upper filter frame 5, and the side wall of the upper filter frame 5 between the two support structures 4 is fixedly connected to the lower filter frame 51, thus forming a complete adaptive flow guide component. This connection method enables the upper filter frame 5 and the lower filter frame 51 to move synchronously according to the action of the sliding column 6, thereby realizing the adjustment of the air flow path.

[0029] Heat exchange under normal wind conditions: After the fan is started, when the wind force is small, the elastic force of the spring 62 keeps the sliding column 6 at the bottom of the sliding cavity 421. At this time, the adaptive flow guide component is in the initial state. The air flows through the air cooler tube bundle under the drive of the fan. The air first encounters the upper filter frame 5 and the lower filter frame 51. Since the upper filter frame 5 is U-shaped and the lower filter frame 51 is a box-shaped structure with a hollow top, and the filter slots 52 are staggered and have filter plates attached to the outside, the air needs to bypass these structures, and when passing through the filter slots 52, tiny sand particles or fine dust and other impurities will be filtered out by the filter plates. The flow direction and speed of the air are changed, so that the air stays outside the tube bundle for a longer time, thereby performing a certain degree of heat exchange with the fluid in the main pipe 11.

[0030] After the fan is started, when the wind force is relatively small, the elastic force of the spring 62 keeps the sliding column 6 at the bottom of the sliding cavity 421. At this time, the adaptive flow guide component is in the initial state. The air flows to the tube bundle under the drive of the fan, and first contacts the upper filter frame 5 and the lower filter frame 51. The upper filter frame 5 is U-shaped, and the lower filter frame 51 is a box-shaped structure with a hollow top. The filter slots 52 are staggered, and a filter plate is also attached to the outside of the filter slots 52. When the air passes through these structures, its flow direction is changed, and the filter plate will filter out tiny sand particles, fine dust and other impurities in the air, so that the air flowing through the tube bundle is relatively clean. When the air passes through the filter frame structure, it will stay to a certain extent, thereby performing preliminary heat exchange with the fluid in the main pipe 11.

[0031] When the wind force increases, the air exerts a greater force on the filter frame (mainly the upper filter frame 5, because its cross section is U-shaped and the windward area is larger). Since the upper filter frame 5 is fixedly connected to the sliding column 6, this force will cause the upper filter frame 5 to move upward, thereby driving the sliding column 6 to slide upward in the sliding cavity 421. Since the upper filter frame 5 and the lower filter frame 51 are fixedly connected, the lower filter frame 51 will also move upward accordingly. This position change further disrupts the airflow, making the air circulation path more complicated, which is specifically reflected in the change in the distance between the main pipe 11 at its upper end (refer to Fig.13 and 14 ).

[0032] Specifically, there is a certain gap in the initial state, and the air can flow relatively smoothly through the gap and the filter slot 52 of the filter frame and other parts to exchange heat with the main pipe 11. As the filter frame moves upward, the size of the gap changes, and the relatively stable flow path of the air is broken. For example, the air can enter relatively directly from the area near the bottom of the main pipe 11, pass through the filter frame, pass near the outer surface of the main pipe 11, and then flow out. However, due to the change in distance, the air needs to approach the outer surface of the main pipe 11 at a new angle and along a new trajectory, and may need to be deflected upward by a certain angle. The air can only continue to flow after passing through or bypassing some blocking areas caused by the movement of the filter frame. This makes the air flow path complicated. The upper filter frame 5 is U-shaped and the lower filter frame 51 is a box-shaped structure with a hollow top. After they move upward, the overall position relationship relative to the main pipe 11 changes. The U-shaped upper filter frame 5 will form different blocking and guiding effects on the air. Originally, the air could enter relatively smoothly from one side of the U-shaped opening. Now, due to the change in position, the direction of air entry may be more guided to the two sides or bottom of the U-shape, and then it can pass through after a complex detour.

[0033] In addition, in the initial state, the flow of air around the filter frame is relatively stable and has a certain regularity, and the interaction between the air around the filter frame and the air farther away is in a state of equilibrium. However, when the filter frame moves, this balance is broken, and the air around it will be squeezed or attracted to a new position, causing more mixing and collision with the surrounding air that originally flowed normally. For example, the air that originally flowed smoothly will be squeezed by the moved filter frame, flow to other areas, and then intersect with the air coming from other directions, so that the air flow outside the entire tube bundle is no longer orderly, but becomes chaotic and the flow path is more diverse and complex, so that it is more fully in contact with the outer surface of the main pipe 11, prolonging the residence time and enhancing the heat exchange effect.

[0034] When the air faces the upper filter frame 5 and the lower filter frame 51 whose positions have changed, it takes more time to bypass these structures, which greatly prolongs the residence time of the air outside the tube bundle. At the same time, the filter slot 52 and the filter plate continue to play a filtering role. The extended residence time allows the air to more fully exchange heat with the fluid in the tube bundle body 1, thereby improving the cooling efficiency of the air cooler tube bundle.

[0035] Example 2, refer to Figure 5-Figure 12The cleaning component includes an air collecting groove 8, a main air intake pipeline 81, a rotating mechanism 7, a connecting rod 9, a wiping block 91, an air guide channel 61 opened in the sliding column 6, and an annular cavity opened in the mounting ring 41. The rotating mechanism 7 is rotatably arranged in the annular cavity. The air collecting groove 8 and the main air intake pipeline 81 are both opened on the top wall of the upper filter frame 5 and are arranged close to the mounting ring 41. The air collecting groove 8 is connected to the main air intake pipeline 81. The end of the main air intake pipeline 81 away from the air collecting groove 8 passes through the side wall of the upper filter frame 5. The end of the air guide channel 61 passes through the upper and lower side walls of the sliding column 6. A notch matching the air guide channel 61 is opened at the bottom of the sliding cavity 421. The sliding cavity 421 is connected to the annular cavity through the notch. When the airflow flows through the filter frame, part of the airflow will be guided into the air collecting groove 8 (refer to Fig.12 ).

[0036] Furthermore, the end of the main air intake pipe 81 away from the air collecting tank 8 is connected to the upper end of the air guide channel 61, and side air intake pipes 82 are opened on both sides of the main air intake pipe 81. One end of the side air intake pipe 82 passes through the side wall of the air collecting tank 8, and the other end passes through the side wall of the main air intake pipe 81, which can increase the diversity of air intake volume and air intake direction, ensure that the gas supply is more sufficient and stable, and ensure that the rotating mechanism 7 can be effectively driven to rotate. The airflow in the air collecting tank 8 will enter the air guide channel 61 through the main air intake pipe 81 and the side air intake pipe 82, and will eventually be guided into the annular cavity to drive the rotating mechanism 7 to rotate.

[0037] The rotating mechanism 7 is composed of a sleeve 71, two limiting rings 72 and a plurality of baffles 73. The limiting rings 72 and the baffles 73 are all fixed on the sleeve 71. The limiting rings 72 are located on both sides of the sleeve 71, and the baffles 73 are located between the two limiting rings 72. The limiting rings 72 are against the side walls of the annular cavity, and there is a gap between the baffles 73 and the inner wall of the annular cavity. The airflow entering the annular cavity will push the baffles 73, thereby driving the entire rotating mechanism 7 to rotate. A limiting ring groove 43 is provided on the side wall of the mounting ring 41 facing the lower filter frame 51, and the gas entering the annular cavity will eventually flow out from the limiting ring groove 43, and the side wall of the limiting ring 72 facing the lower filter frame 51 is fixedly connected to the connecting rod 9. The connecting rod 9 is matched with the limiting ring groove 43 to ensure its smooth movement. The upper end of the wiping block 91 is provided with a mounting groove, and the wiping block 91 is mounted on the connecting rod 9 through the mounting groove to ensure that the wiping block 91 can move synchronously with the connecting rod 9, and it is also convenient for disassembly and assembly. The bottom of the wiping block 91 is against the outer wall of the main pipe 11 to ensure that the side wall of the main pipe 11 can be effectively cleaned, thereby improving the heat exchange efficiency of the air cooler tube bundle. When the rotating mechanism 7 rotates, the connecting rod 9 will also move accordingly, and then the wiping block 91 thereon can be driven to rotate along the outer side of the main pipe 11 to dynamically clean the outer wall of the main pipe 11, and at the same time, the flow direction of the airflow can be changed, so that the heat exchange of the airflow to the main pipe 11 is more uniform.

[0038] It should be noted that the inner frame of the wiping block 91 is a metal structure, and the outer layer is wrapped with a fiber fabric that has been treated with anti-hair removal. In the outer material of the wiping block 91, if a fiber fabric is used, a mixed fabric containing a certain amount of thermal conductive fiber can be selected, such as a fiber fabric with added carbon fiber. The carbon fiber has a high thermal conductivity and can help heat to be dissipated from the surface of the tube bundle to a certain extent. Moreover, it has strong adsorption properties and can adsorb the cleaned impurities. At the same time, in order to ensure the service life of the wiping block 91 during the cleaning process, the fiber fabric also needs to have a certain wear resistance to avoid being damaged too quickly during the wiping process. For the internal support, if it is a metal frame, a high thermal conductivity copper-nickel alloy can be selected. Its own thermal conductivity is high and it also helps heat conduction. The frame is designed to have a concave-convex structure that matches the shape of the main pipe 11, which can fit the outer surface of the main pipe 11 more closely, remove the dust accumulated on the outer wall of the main pipe 11 to the greatest extent, ensure the cleanliness of the surface of the main pipe 11, and help maintain the good heat exchange performance of the air cooler tube bundle.

[0039] In this embodiment, when the fan is running, the air flows through the filter frame (upper filter frame 5 and lower filter frame 51), and a part of the air flow is guided into the air collecting groove 8. The air flow entering the air collecting groove 8 will enter the air guide channel 61 through the main air intake pipe 81 and the side air intake pipes 82 on both sides thereof. Since the bottom of the sliding cavity 421 is connected to the air guide channel 61 through the groove, the air flow is able to enter the annular cavity in the mounting ring 41.

[0040] In the annular cavity, the airflow impacts the baffle 73 of the rotating mechanism 7. Because there is a gap between the baffle 73 and the inner wall of the annular cavity, and the limiting ring 72 limits the axial movement of the rotating mechanism 7, the force of the airflow on the baffle 73 causes the rotating mechanism 7 to rotate around its central axis. When the rotating mechanism 7 rotates, the connecting rod 9 fixedly connected to the limiting ring 72 moves smoothly in the limiting ring groove 43. Since the wiping block 91 is clamped on the connecting rod 9 through the mounting groove, the wiping block 91 also moves synchronously. The bottom of the wiping block 91 is in close contact with the outer wall of the main pipe 11. During its movement, the anti-hair removal fiber on its outer layer is The carbon fiber fabric (such as a hybrid fabric containing carbon fiber) absorbs and cleans the dust on the outer wall of the main pipe 11 by virtue of its own adsorption property, while the inner metal frame (such as a high thermal conductivity copper-nickel alloy frame) provides structural support for the wiping block 91 on the one hand to ensure that its shape fits well with the outer surface of the main pipe 11, and on the other hand, with its high thermal conductivity, it promotes the heat to be dissipated from the surface of the main pipe 11 through the wiping block 91 to a certain extent, thereby improving the heat exchange efficiency of the air cooler tube bundle and keeping the surface of the main pipe 11 clean, reducing the adverse effect of dust accumulation on heat exchange, and ensuring the long-term stable operation of the air cooler tube bundle.

[0041] When the rotating mechanism 7 is driven by the airflow to rotate in the annular cavity, since the side wall of the limit ring 72 facing the lower filter frame 51 is fixedly connected to the connecting rod 9, the connecting rod 9 will make a circular motion with the rotation of the rotating mechanism 7. The wiping block 91 is clamped on the connecting rod 9 through the mounting groove at the upper end, so that the wiping block 91 will make a circular motion along the outer wall of the main pipe 11 driven by the connecting rod 9, thereby realizing dynamic cleaning of the outer wall of the main pipe 11.

[0042] In this dynamic cleaning process, the anti-hair removal treated fiber fabric (such as a mixed fabric containing thermal conductive fibers) wrapped on the outer layer of the wiping block 91 is in continuous contact and friction with the outer wall of the main pipe 11, and uses its adsorption property to adsorb dust and impurities on the surface of the main pipe 11, so as to prevent dust from accumulating on the surface of the main pipe 11 and affecting the heat exchange efficiency. In addition, the inner metal frame of the wiping block 91 (such as a high thermal conductivity copper-nickel alloy frame) is designed to have a concave-convex structure that matches the shape of the main pipe 11, which can provide reliable structural support for the wiping block 91 and ensure that it fits well with the outer surface of the main pipe 11 to achieve comprehensive and uniform cleaning. In addition, with the help of the high thermal conductivity of the metal frame, heat is promoted to be dissipated from the surface of the main pipe 11 through the wiping block 91, further improving the heat exchange efficiency, and ensuring the stability and durability of the wiping block 91 during long-term use, and can fit closely to the outer surface of the main pipe 11, ensuring that effective wiping and cleaning can be performed at pipe walls at different positions and in different shapes, so that the outer wall of the entire main pipe 11 can be cleaned more comprehensively and evenly.

[0043] When the wiping block 91 rotates along the outside of the main pipe 11, it also disturbs the surrounding airflow to a certain extent, thereby changing the direction of the airflow. Originally, the airflow may have local uneven flow velocity and inconsistent heat exchange when passing through the outer surface of the main pipe 11. The rotation of the wiping block 91 causes the airflow to be guided in different directions when passing through the main pipe 11. The areas with originally faster or slower flow velocity will redistribute the airflow due to the blocking and guidance of the wiping block 91.

[0044] For example, when the wiping block 91 rotates to a certain position, the airflow that originally flows directly through one side of the main pipe 11 will be squeezed to the side or diverted upward or downward, so that this part of the airflow can cover other areas on the surface of the main pipe 11 that were originally difficult for the airflow to fully contact, allowing more airflow to exchange heat with the outer surface of the main pipe 11. Moreover, this process of dynamically changing the direction of the airflow is continuous. As the wiping block 91 rotates along the circumferential direction of the main pipe 11, the outer surface of the main pipe 11 at various parts will be affected by the redistribution and guidance of the airflow, thereby making the heat exchange of the airflow with the main pipe 11 more uniform, thereby improving the heat exchange effect of the entire air cooler tube bundle and ensuring its stable and efficient operation.

[0045] In summary, the cleaning component uses the airflow generated by the air flow through the filter frame when the fan is running as a power source to drive the rotating mechanism 7 to rotate, thereby driving the wiping block 91 to automatically perform dynamic cleaning. There is no need to provide an additional complex power device, which reduces the equipment operation cost and maintenance difficulty, and realizes the automatic cleaning and heat exchange performance optimization of the air cooler tube bundle during operation; the rotation of the wiping block 91 can effectively absorb and clean dust and impurities, prevent dust from accumulating on the surface of the main pipe 11, ensure the cleanliness of the surface of the main pipe 11, and reduce the problem of decreased heat exchange efficiency caused by dust accumulation. When the wiping block 91 rotates, it can also disturb the surrounding airflow, change the direction of the airflow, and redistribute and guide the airflow with uneven flow rate and different heat exchange degree, so that more airflow can cover the difficult-to-fully contact area on the surface of the main pipe 11, improve the heat exchange uniformity between the airflow and the outer surface of the main pipe 11, and thus improve the heat exchange effect of the entire air cooler tube bundle, ensuring its stable and efficient operation.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air cooler tube bundle, comprising a plurality of tube bundle bodies (1) and two oppositely arranged main frames (3) and a connecting frame (31), wherein the main frames (3) are provided with a plurality of mounting holes (30), the inner sides of the upper and lower ends of the main frames (3) are welded to the ends of the connecting frame (31), the tube bundle body (1) is composed of a main pipe (11), a transfer U-shaped pipe (12) and a connecting pipe (13), the main pipe (11) is installed between the two main frames (3) after passing through the mounting holes (30), the ends of adjacent main pipes (11) are connected via the transfer U-shaped pipe (12), the ends of the main pipes (11) located at the uppermost side and the lowermost side are connected to the connecting pipe (13), the end of the connecting pipe (13) located at the upper side is connected to a water inlet pipe (2), and the end of the connecting pipe (13) located at the lower side is connected to a water outlet pipe (21), characterized in that: Also includes: Adaptive flow guide component: the adaptive flow guide component is arranged on the main pipe (11); Cleaning component: the cleaning component is arranged between the adaptive flow guide component and the main pipe (11).

2. The air cooler tube bundle according to claim 1, characterized in that: The adaptive flow guide assembly comprises a support structure (4), an upper filter frame (5) and a lower filter frame (51); the support structure (4) comprises a mounting ring (41) and a support rod (42); the support rod (42) and the mounting ring (41) are fixedly connected to form a whole; a sliding cavity (421) is provided inside the support rod (42); a sliding column (6) and a spring (62) are provided inside the sliding cavity (421); an end of the sliding column (6) passes through a top wall of the support rod (42) and extends to the outside of the support rod (42); the spring (62) is sleeved on the outside of the sliding column (6) located in the sliding cavity (421); and the upper end of the support rod (42) points in the same direction as the flow direction of the wind force of the fan.

3. The air cooler tube bundle according to claim 2, characterized in that: The support structure (4) is fixedly mounted on the main pipe (11) and close to the end of the main pipe (11); the number of support structures (4) on the same main pipe (11) is two; the end of the sliding column (6) located outside the support rod (42) is fixedly connected to the lower side of the upper filter frame (5); and the side wall of the upper filter frame (5) located between the two support structures (4) is fixedly connected to the lower filter frame (51).

4. The air cooler tube bundle according to claim 3, characterized in that: The cross section of the upper filter frame (5) is U-shaped, and the lower filter frame (51) is a box-shaped structure with a hollow top. Filter grooves (52) are provided on the top wall of the upper filter frame (5) and the bottom wall of the lower filter frame (51). The filter grooves (52) on the upper filter frame (5) and the lower filter frame (51) are staggered, and filter screen plates are attached to the outer sides of the filter grooves (52).

5. The air cooler tube bundle according to claim 3, characterized in that: In the initial state, the bottom of the sliding column (6) abuts against the bottom of the sliding cavity (421), and there is a gap between the upper end of the upper filter frame (5) and the main pipe (11) above it.

6. The air cooler tube bundle according to claim 1, characterized in that: The adaptive flow guide assembly is pre-installed on the main pipe (11), and then the main pipe (11) is installed on the main frame (3) through the installation hole (30), and then the transfer U-shaped pipe (12) and the connecting pipe (13) are welded, and finally the water inlet pipe (2) and the water outlet pipe (21) are welded to the corresponding connecting pipe (13).

7. The air cooler tube bundle according to claim 2, characterized in that: The cleaning assembly comprises an air collecting groove (8), a main air intake pipeline (81), a rotating mechanism (7), a connecting rod (9), a wiping block (91), an air guide channel (61) provided in a sliding column (6), and an annular cavity provided in a mounting ring (41); the rotating mechanism (7) is rotatably arranged in the annular cavity; the air collecting groove (8) and the main air intake pipeline (81) are both provided on the top wall of the upper filter frame (5) and are arranged close to the mounting ring (41); the air collecting groove (8) is connected to the main air intake pipeline (81); an end of the main air intake pipeline (81) away from the air collecting groove (8) passes through a side wall of the upper filter frame (5); an end of the air guide channel (61) passes through the upper and lower side walls of the sliding column (6); a notch matching the air guide channel (61) is provided at the bottom of the sliding cavity (421); the sliding cavity (421) and the annular cavity are connected via the notch.

8. The air cooler tube bundle according to claim 7, characterized in that: The end of the main air intake pipeline (81) away from the air collecting groove (8) is connected to the upper end of the air guide channel (61), and side air intake pipelines (82) are opened on both sides of the main air intake pipeline (81), one end of the side air intake pipeline (82) penetrates the side wall of the air collecting groove (8), and the other end penetrates the side wall of the main air intake pipeline (81).

9. The air cooler tube bundle according to claim 7, characterized in that: The rotating mechanism (7) is composed of a ferrule (71), two limiting rings (72) and a plurality of baffles (73); the limiting rings (72) and the baffles (73) are both fixed on the ferrule (71); the limiting rings (72) are located on both sides of the ferrule (71); the baffles (73) are located between the two limiting rings (72); the limiting rings (72) abut against the side wall of the annular cavity; a gap exists between the baffles (73) and the inner wall of the annular cavity, and the baffles (73) are disposed toward the lower filter frame. A limiting ring groove (43) is provided on the side wall of the mounting ring (41) of the filter frame (51); the side wall of the limiting ring (72) facing the lower filter frame (51) is fixedly connected to the connecting rod (9); the connecting rod (9) is matched with the limiting ring groove (43); a mounting groove is provided on the upper end of the wiping block (91); the wiping block (91) is mounted on the connecting rod (9) by snap-fitting the mounting groove; the bottom of the wiping block (91) abuts against the outer wall of the main pipe (11).

10. The air cooler tube bundle according to claim 9, characterized in that: The inner frame of the wiping block (91) is a metal structure, and the outer layer is wrapped with a fiber fabric that has been treated with anti-hair loss. The frame is designed to have a concave-convex structure that matches the shape of the main pipe (11).

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