Water-air heat exchanger

Abstract

The utility model relates to heat exchanger technical field discloses water air heat exchanger. The utility model provides water air heat exchanger, through installing multiple filter members in fixed support side portion, and with fixed support enclosure forms air inlet chamber, and along the air flow direction, air inlet chamber is arranged in the upstream side of air inlet, makes external air must first pass through filter member before entering heat exchanger body, has realized the prefiltering treatment to the air of entering, has reduced dust to enter heat exchanger body directly, has improved dust to block the phenomenon of heat exchanger fin or pipeline, makes the air smooth circulation, reduces the pollution of heat exchange surface, and avoids the chain problem such as heat resistance increase, flow resistance increase and low temperature dew point corrosion caused by soot, ensures that heat exchanger keeps efficient heat transfer.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a water-air heat exchanger. Background Technology

[0002] Static Var Generators (SVG), as core equipment in flexible AC transmission systems, are widely used in reactive power compensation and voltage stabilization control in power systems. Their power modules generate a significant amount of heat during operation, requiring efficient cooling devices to maintain normal operating temperatures. Water-air heat exchangers combine the advantages of water cooling efficiency with the convenience of air cooling. They remove heat through internal water circulation and utilize external airflow for secondary heat dissipation, making them the mainstream cooling solution for high-power SVG equipment. This structure not only effectively reduces the energy consumption of the cooling system but also meets the demands of high power density and high reliability industrial applications.

[0003] Traditional water-air heat exchangers typically consist of a core, a fan support, and an outer casing. The core heat dissipation component is an aluminum finned tube heat exchange core, which is formed by combining multiple rows of parallel aluminum alloy flat tubes with precisely arranged aluminum fins through a tube expansion process. Multiple microchannels are distributed inside the flat tubes, forming a closed coolant circulation path; externally, a dense array of fins expands the heat dissipation area. During operation, the high-temperature coolant flows inside the flat tubes, and heat is conducted through the tube walls to the fins, ultimately being carried away by the convection of ambient air forced in by the axial flow fan.

[0004] However, the fins or heat exchange surfaces of traditional water-air heat exchangers easily attract particulate matter (such as dust and fibers) from the air, leading to frequent dust accumulation problems. Dust deposition significantly increases thermal resistance, reduces the heat exchanger's heat transfer coefficient, and can even cause localized flow channel blockage, forcing the system to increase pumping energy consumption to maintain cooling. Over long-term operation, dust accumulation can also cause localized overheating, accelerate the corrosion or aging of heat exchanger materials, and shorten the equipment's lifespan. Utility Model Content

[0005] In view of this, the present invention provides a water-air heat exchanger to solve the problem of dust accumulation.

[0006] The water-air heat exchanger provided by this utility model includes a fixed bracket, a heat exchanger body, and multiple filter elements. The heat exchanger body is installed above the fixed bracket and has an air inlet. The multiple filter elements are installed on the side of the fixed bracket, and the multiple filter elements and the fixed bracket enclose an air inlet chamber. Along the air flow direction, the air inlet chamber is arranged upstream of the air inlet.

[0007] Beneficial effects: By installing multiple filter elements on the side of the fixed bracket and forming an air inlet chamber with the fixed bracket, the outside air must pass through the filter elements before entering the heat exchanger body. This achieves pre-filtration of the incoming air, reduces the direct entry of dust into the heat exchanger body, improves the phenomenon of dust clogging the heat exchanger fins or pipes, allows for smooth airflow, reduces contamination of the heat exchange surface, and avoids a chain reaction of problems such as increased thermal resistance, increased flow resistance, and low-temperature dew point corrosion caused by dust accumulation, ensuring that the heat exchanger maintains high-efficiency heat transfer.

[0008] In one optional embodiment, the water-air heat exchanger further includes a spray atomizing assembly installed outside the air inlet. The atomizing assembly includes a water supply hose and an atomizing nozzle. The atomizing nozzle is connected to the water outlet of the water supply hose, and the spray direction of the atomizing nozzle is towards the air inlet.

[0009] Beneficial effects: By adding atomizing nozzles, water is atomized and sprayed towards the air inlet, forming fine droplets. These droplets mix thoroughly with the air as they enter the air intake chamber and evaporate rapidly. This effectively captures suspended dust particles in the air, causing them to become heavier and settle due to the water film, preventing them from adhering to the heat exchanger surface and forming a dust layer. This ensures stable heat exchange efficiency. Simultaneously, according to thermodynamic principles, water absorbs a large amount of latent heat of vaporization during evaporation. This heat comes directly from the air it contacts, achieving active and efficient cooling of the intake air.

[0010] In one optional embodiment, the atomizing assembly further includes a main water supply pipe and branch water supply pipes. The inlet end of the main water supply pipe is connected to a water storage device; the inlet end of the branch water supply pipe is connected to the outlet end of the main water supply pipe; and the inlet end of the flexible water supply hose is connected to the outlet end of the branch water supply pipe.

[0011] Beneficial effects: The main water supply pipe is directly connected to the water storage device as the main pipeline, ensuring a continuous water supply; the branch water supply pipes serve as intermediate distribution channels, allowing the atomizing nozzles to continuously and stably spray fine droplets, avoiding fluctuations in dust removal efficiency caused by water flow fluctuations.

[0012] In one optional embodiment, the water-air heat exchanger further includes an adjustment assembly, which comprises a guide rail, a connecting bracket, and several rolling elements. The guide rail is fixedly mounted on the fixed bracket, and the guiding direction of the guide rail is the length or width direction of the filter element; the connecting bracket is configured to connect the water supply hose; the rolling elements are rotatably mounted on the connecting bracket via a rotating shaft, and the rolling elements are rolled on the guide rail.

[0013] Beneficial effects: The guide rail is fixedly installed along the length or width of the filter element, providing a linear movement path for the atomizing nozzle. The connecting bracket is connected to the water supply hose, allowing the atomizing nozzle to move smoothly on the guide rail with the rolling element. This enables the nozzle position to be dynamically adjusted according to the actual air intake conditions, ensuring that the droplets are evenly distributed in the air intake chamber, avoiding sparse or excessive droplets in local areas, and eliminating dust accumulation dead corners caused by fixed nozzles.

[0014] In one optional embodiment, the adjusting assembly further includes a fixing clip, which is mounted on the connecting bracket and is used to fix the water supply branch pipe.

[0015] Beneficial effects: By setting a fixed buckle as a mechanical constraint structure, the water supply branch pipe is firmly clamped or locked to the connecting bracket, ensuring a stable connection of the water supply branch pipe during dynamic adjustment, and avoiding the risk of water flow interruption, uneven spray or interface detachment caused by vibration or movement.

[0016] In one alternative embodiment, the atomizing nozzles are provided in a plurality of locations, and the plurality of atomizing nozzles are arranged at intervals.

[0017] Beneficial effects: The use of multiple atomizing nozzles arranged at intervals can reduce cooling blind spots, allowing air entering from different positions of the air inlet to be enveloped and cooled by nearby and appropriate amounts of mist droplets. This enables the mist droplets to effectively capture dust particles, reduce the deposition rate of dust on the heat exchanger surface, and maintain the cleanliness of the heat exchanger surface.

[0018] In one alternative embodiment, the spray atomizing assembly further includes a water pump connected to the water main and configured to provide power for the movement of water within the water main.

[0019] Beneficial effects: By adding a water pump connected to the main water supply pipe, a continuous and stable flow of water is provided, ensuring that the water pressure in the main water supply pipe is constant and without pulsation, thereby ensuring that the atomizing nozzle always outputs uniform and fine droplets.

[0020] In one optional embodiment, the bottom of the fixed bracket is provided with a plurality of legs, which are arranged at intervals; the opposite sidewalls of two adjacent legs are provided with connected installation guides, and the bottom of the installation guides is provided with disassembly ports; the outer edges of both sides of the filter element are inserted into and placed in the installation guides of the two adjacent legs through the disassembly ports, and slide along the guiding direction of the installation guides.

[0021] Beneficial effects: By providing interconnected installation guides and bottom disassembly ports on the opposite side walls of the bottom legs of the fixed bracket, the outer edges of both sides of the filter element can be directly inserted through the disassembly ports and slid along the installation guides. This allows for quick cleaning and replacement of the filter element, reducing maintenance time and difficulty. For example, during replacement, the operator only needs to align the outer edges of both sides of the filter element with the disassembly ports, insert it vertically, and then move it to the working position along the installation guides to complete the installation; disassembly is the reverse operation, simply removing the filter element from the disassembly ports.

[0022] In one alternative embodiment, the cross-section of the mounting guide is U-shaped or C-shaped.

[0023] Beneficial effects: By setting the cross-section of the installation guide to a U-shape or C-shape, the filter element's side edges are wrapped and constrained in three directions, preventing the filter element from swaying or shifting back and forth or left and right under airflow. This enhances the rigidity and stability of the filter element during operation, ensuring smooth and low-noise operation of the equipment. Simultaneously, precise guide grooves are provided on both outer edges of the filter element, allowing it to slide smoothly along the guide direction after insertion through the disassembly port.

[0024] In one alternative embodiment, the heat exchanger body includes a shell and a core. The core is an aluminum finned tube heat exchange core, which is installed inside the shell.

[0025] Beneficial effects: By using an aluminum finned tube heat exchanger core as the core structure of the heat exchanger body, the dense, smooth, and corrosion-resistant surface of the aluminum fins reduces the adhesion points and adhesion of dust particles, preventing dust from rapidly accumulating in the fin gaps to form an insulation layer. This fundamentally reduces the risk of decreased heat exchange efficiency due to dust accumulation. Simultaneously, the finned tube structure significantly increases the heat exchange surface area, and combined with the high thermal conductivity of aluminum, allows for more complete heat exchange between the air and the cooling medium, significantly improving the heat exchange efficiency per unit time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A front view schematic diagram of a water-air heat exchanger provided in an embodiment of this utility model; Figure 2 A partial top view of the water-air heat exchanger provided in an embodiment of this utility model; Figure 3This is a side view of a water-air heat exchanger provided in an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached figures: 1. Fixed bracket; 2. Heat exchanger body; 3. Filter element; 4. Water supply hose; 5. Atomizing nozzle; 6. Water supply branch pipe; 7. Guide rail; 8. Connecting bracket; 9. Rolling element; 10. Fixing buckle; 11. Support leg; 12. Mounting guide; A. Direction of airflow. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] The following is combined Figures 1 to 3 The following describes embodiments of the present invention.

[0031] According to an embodiment of this utility model, the provided water-air heat exchanger, such as Figure 1 As shown, it includes a fixed bracket 1, a heat exchanger body 2, and multiple filter elements 3. The heat exchanger body 2 is mounted above the fixed bracket 1 and has an air inlet. Multiple filter elements 3 are mounted on the side of the fixed bracket 1, and the multiple filter elements 3 and the fixed bracket 1 enclose an air inlet chamber. Along the air flow direction, the air inlet chamber is arranged upstream of the air inlet.

[0032] This configuration, by installing multiple filter elements 3 on the side of the fixed bracket 1 and forming an air inlet chamber with the fixed bracket 1, and arranging the air inlet chamber upstream of the air inlet along the airflow direction, ensures that the external air must pass through the filter elements 3 before entering the heat exchanger body 2. This achieves pre-filtration of the incoming air, reduces the direct entry of dust into the heat exchanger body 2, improves the phenomenon of dust clogging the heat exchanger fins or pipes, allows for smooth airflow, reduces contamination of the heat exchange surface, and avoids a chain reaction of problems such as increased thermal resistance, increased flow resistance, and low-temperature dew point corrosion caused by dust accumulation, ensuring that the heat exchanger maintains high-efficiency heat transfer.

[0033] Meanwhile, the cooled air is sent into the water-air heat exchanger to exchange heat with the cooling medium. Since the initial temperature of the intake air is reduced, according to the formula ΔT=T1-T2, where T1 is the temperature of the cooling medium and T2 is the air temperature, the temperature difference between the air and the cooling medium increases. According to the basic heat exchange formula Q=K*A*ΔT, where Q is the heat exchange capacity, K is the heat transfer coefficient, A is the heat exchange area, and ΔT is the temperature difference, it can be seen that when K and A remain unchanged, the increase of ΔT will directly lead to an increase in the heat exchange capacity Q, thereby enhancing the system's heat dissipation efficiency and cooling capacity.

[0034] It can be noted that filter element 3 has several filter holes.

[0035] Preferably, the filter element 3 is selected as a filter screen, filter plate, etc.

[0036] Furthermore, the filter element 3 is provided with an inner filter layer and an outer filter layer, and the filter pore size of the inner filter layer is smaller than that of the outer filter layer.

[0037] When in use, the outer filter layer is used for coarse filtration, and the inner filter layer is used for fine filtration (secondary filtration).

[0038] In one embodiment, such as Figure 2 and Figure 3 As shown, the water-air heat exchanger also includes a spray atomizing assembly, which is installed outside the air inlet. The spray atomizing assembly includes a water supply hose 4 and an atomizing nozzle 5. The atomizing nozzle 5 is connected to the water outlet end of the water supply hose 4, and the spray direction of the atomizing nozzle 5 is towards the air inlet.

[0039] With this configuration, by adding atomizing nozzles 5, water is atomized and sprayed toward the air inlet to form fine droplets. As the droplets enter the air inlet chamber with the air, they are fully mixed with the air and evaporate rapidly. This effectively captures suspended dust particles in the air, causing the dust particles to become heavier and settle due to the water film, thus preventing them from adhering to the surface of the heat exchanger body 2 and forming a dust accumulation layer. This allows the heat exchange efficiency to be maintained stably.

[0040] Meanwhile, according to thermodynamic principles, water absorbs a large amount of latent heat of vaporization during the evaporation process. This heat comes directly from the air in contact with it, achieving active and efficient cooling of the intake air.

[0041] Among them, with Figure 3 For example, the air inlet of the heat exchanger body 2 is located at the bottom. Figure 3 In the diagram, direction A represents the airflow direction.

[0042] It can be noted that the atomizing nozzle 5 is made of stainless steel and the nozzle orifice is inlaid with hard alloy.

[0043] This design facilitates cleaning and replacement, features a large and unobstructed internal flow channel that is not prone to clogging, and uses wear-resistant and corrosion-resistant materials for a long service life.

[0044] In one embodiment, such as Figure 2 and Figure 3 As shown, the spray atomizing assembly also includes a main water supply pipe and branch water supply pipes 6. The inlet end of the main water supply pipe is connected to the water storage device; the inlet end of the branch water supply pipe 6 is connected to the outlet end of the main water supply pipe; and the inlet end of the water supply hose 4 is connected to the outlet end of the branch water supply pipe 6.

[0045] With this setup, the main water supply pipe is directly connected to the water storage unit as the main pipeline to ensure a continuous water supply; the branch water supply pipe 6 serves as an intermediate distribution channel to continuously and stably spray fine mist droplets from the atomizing nozzle 5, avoiding fluctuations in dust removal efficiency caused by water flow fluctuations.

[0046] In one embodiment, such as Figure 2 and Figure 3 As shown, the water-air heat exchanger also includes an adjustment assembly, which includes a guide rail 7, a connecting bracket 8, and several rolling elements 9. The guide rail 7 is fixedly installed on the fixed bracket 1, and the guiding direction of the guide rail 7 is the length or width direction of the filter element 3; the connecting bracket 8 is configured to connect the water supply hose 4; the rolling elements 9 are rotatably installed on the connecting bracket 8 via a rotating shaft, and the rolling elements 9 are rolled on the guide rail 7.

[0047] With this configuration, the guide rail 7 is fixedly installed along the length or width of the filter element 3, providing a linear movement path for the atomizing nozzle 5. The connecting bracket 8 is connected to the water supply hose 4, allowing the atomizing nozzle 5 to move smoothly on the guide rail 7 with the rolling element 9. This enables the nozzle position to be dynamically adjusted according to the actual air intake conditions, ensuring that the droplets are evenly distributed in the air intake chamber, avoiding sparse or excessive droplets in local areas, and eliminating dust accumulation dead corners caused by fixed nozzles.

[0048] It can be noted that the rolling element 9 is selected as a roller.

[0049] During use, factors such as pump start-up and shutdown, water pressure fluctuations, and environmental wind force can cause pipelines, especially rigid or semi-rigid water supply branch pipes, to vibrate or slightly displace. Long-term vibration can lead to metal fatigue, which may cause pipe joints to loosen, threads to wear or even break, resulting in leakage failures and seriously threatening the operational safety and lifespan of the system.

[0050] Therefore, in this embodiment, as Figure 2 and Figure 3 As shown, the adjustment assembly also includes a fixing buckle 10, which is installed on the connecting bracket 8 and is used to fix the water supply branch pipe 6.

[0051] With this configuration, the fixed buckle 10 serves as a mechanical constraint structure, firmly clamping or locking the water supply branch pipe 6 onto the connecting bracket 8. This ensures a stable connection of the water supply branch pipe 6 during dynamic adjustment, avoiding the risk of water flow interruption, uneven spraying, or interface detachment caused by vibration or movement.

[0052] Of course, in other alternative embodiments, the retaining clip 10 can also be used to secure the water delivery hose 4.

[0053] For example, the water supply hose 4 can be fixed to the water supply branch pipe 6 using the fixing clip 10. The specific fixing method depends on the actual needs.

[0054] Because the air inlet of a water-air heat exchanger typically has a large area, if only a single or a small number of atomizing nozzles are installed, regardless of their flow rate, the resulting mist field cannot effectively cover the entire air inlet surface, inevitably leading to cooling blind spots at the edges. Uncooled air entering the heat exchanger directly will increase the overall average temperature of the incoming air, severely weakening the pre-cooling effect.

[0055] Therefore, in this embodiment, as Figure 2 and Figure 3 As shown, there are multiple atomizing nozzles 5, which are arranged at intervals.

[0056] This configuration, employing multiple atomizing nozzles 5 arranged at intervals, reduces cooling blind spots, allowing air entering from different positions at the air inlet to be enveloped and cooled by nearby, appropriate amounts of mist droplets. This enables the mist droplets to effectively capture dust particles, reducing the deposition rate of dust on the heat exchanger surface and maintaining the cleanliness of the heat exchanger surface.

[0057] It can be noted that the spray atomizing component also includes a water pump, which is connected to the main water supply pipe and configured to provide power for the movement of water inside the main water supply pipe.

[0058] This setup, by adding a water pump connected to the main water supply pipe, provides continuous and stable flow power for the water, ensuring that the water pressure in the main water supply pipe is constant and without pulsation, thereby ensuring that the atomizing nozzle 5 always outputs uniform and fine droplets.

[0059] It can be noted that in the above embodiments, the main water supply pipe and the branch water supply pipe 6 are made of random copolymer polypropylene (PPR material), and the connection nodes adopt elbow, tee, and reducer fusion pipe structure to prevent corrosion and leakage caused by long-term use.

[0060] In one embodiment, such as Figure 1 and Figure 3As shown, the bottom of the fixed bracket 1 is provided with several legs 11, which are arranged at intervals; the opposite side walls of two adjacent legs 11 are provided with connected installation guide parts 12, and the bottom of the installation guide parts 12 is provided with a disassembly port; the outer edges of both sides of the filter element 3 are inserted into and placed in the installation guide parts 12 of two adjacent legs 11 through the disassembly port, and slide along the guiding direction of the installation guide parts 12.

[0061] With this configuration, by providing a connected installation guide 12 and a bottom disassembly port on the opposite side wall of the bottom support leg 11 of the fixed bracket 1, the outer edges of both sides of the filter element 3 can be directly inserted through the disassembly port and slide along the installation guide 12, so that the cleaning and replacement of the filter element 3 can be completed quickly, reducing maintenance time and maintenance difficulty.

[0062] For example, when replacing, the operator only needs to align the outer edges of both sides of the filter element 3 with the disassembly port, insert it vertically, and then move it to the working position along the installation guide 12 to complete the installation; when disassembling, the operation is reversed, and the filter element 3 can be taken out from the disassembly port.

[0063] Preferably, the bottom disassembly port of the mounting guide 12 is inclined.

[0064] This design helps reduce the difficulty of accessing the disassembly port through the outer edge of filter element 3.

[0065] It can be noted that the cross-section of the mounting guide part 12 is U-shaped or C-shaped.

[0066] This configuration, by setting the cross-section of the installation guide 12 to be U-shaped or C-shaped, provides three-way wrapping and constraint for the side edge of the filter element 3, preventing the filter element 3 from swaying and shifting back and forth or left and right under the action of airflow, enhancing the rigidity and stability of the filter element 3 in the working state, and ensuring smooth and low-noise operation of the equipment.

[0067] At the same time, precise guide grooves are provided on both outer edges of the filter element 3 so that the filter element 3 can slide smoothly along the guide direction after being inserted through the disassembly port.

[0068] It can be explained that the heat exchanger body 2 includes an outer shell and a core. The core is an aluminum finned tube heat exchange core, which is installed inside the outer shell.

[0069] With this configuration, by using an aluminum finned tube heat exchange core as the core structure of the heat exchanger body 2, the dense, smooth and corrosion-resistant surface of the aluminum fins reduces the attachment points and adhesion of dust particles, preventing dust from quickly accumulating in the gaps between the fins to form an insulation layer, thus fundamentally reducing the risk of heat exchange efficiency decline due to dust accumulation.

[0070] Meanwhile, the finned tube structure significantly increases the heat exchange surface area, and combined with the high thermal conductivity of aluminum, it allows for more complete heat exchange between the air and the cooling medium, significantly improving the heat exchange efficiency per unit time.

[0071] It can be explained that the aluminum finned tube heat exchange core is composed of multiple rows of parallel aluminum alloy flat tubes and precisely arranged aluminum fins through a tube expansion process. Multiple microchannels are distributed inside the flat tubes to form a closed coolant circulation path, and the heat dissipation area is expanded by a dense array of fins on the outside.

[0072] It can be noted that the water-air heat exchanger is also equipped with a control terminal, and uses a temperature detection device to monitor the cooling water temperature data in real time. By electrically connecting the temperature detection device to the control terminal, the measured water temperature data is fed back to the control terminal in real time.

[0073] The control terminal is also connected to the water pump and adjusts the pump power in real time based on water temperature data.

[0074] For example, reduce the water pump flow rate or turn off the water pump under low load conditions to reduce energy consumption; under high load conditions, increase the water pump power to reduce the temperature rise of the cooling water.

[0075] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A water-air heat exchanger, characterized in that, include: Fixed bracket (1); The heat exchanger body (2) is installed above the fixed bracket (1), and the heat exchanger body (2) is provided with an air inlet; Multiple filter elements (3) are installed on the side of the fixed bracket (1), and the multiple filter elements (3) and the fixed bracket (1) enclose an air inlet chamber. The air inlet chamber is arranged on the upstream side of the air inlet along the air flow direction.

2. The water-air heat exchanger according to claim 1, characterized in that, The water-air heat exchanger further includes a spray atomizing component, which is installed on the outside of the air inlet. The spray atomizing component includes: Water delivery hose (4); The atomizing nozzle (5) is connected to the water outlet of the water supply hose (4), and the atomizing nozzle (5) sprays towards the air inlet.

3. The water-air heat exchanger according to claim 2, characterized in that, The spray atomization component also includes: The main water supply pipe is connected to the water storage unit at its inlet end; Water supply branch pipe (6), the inlet end of the water supply branch pipe (6) is connected to the outlet end of the main water supply pipe; The inlet end of the water supply hose (4) is connected to the outlet end of the water supply branch pipe (6).

4. The water-air heat exchanger according to claim 3, characterized in that, The water-air heat exchanger also includes an adjustment component, which comprises: The guide rail (7) is fixedly installed on the fixed bracket (1), and the guiding direction of the guide rail (7) is the length direction or the width direction of the filter element (3); A connecting bracket (8) is configured to connect the water supply hose (4); A plurality of rolling elements (9) are rotatably mounted on the connecting bracket (8) via a rotating shaft, and the rolling elements (9) are rotatably mounted on the guide rail (7).

5. The water-air heat exchanger according to claim 4, characterized in that, The adjustment assembly also includes a fixing buckle (10), which is installed on the connecting bracket (8) and is used to fix the water supply branch pipe (6).

6. The water-air heat exchanger according to any one of claims 2-5, characterized in that, The atomizing nozzle (5) is provided in multiple ways, and the multiple atomizing nozzles (5) are arranged at intervals.

7. The water-air heat exchanger according to any one of claims 2-5, characterized in that, The spray atomizing assembly also includes a water pump connected to the main water supply pipe and configured to provide power for the movement of water within the main water supply pipe.

8. The water-air heat exchanger according to any one of claims 1-5, characterized in that, The fixed bracket (1) has several legs (11) at its bottom, and the legs (11) are arranged at intervals. Two adjacent support legs (11) have connected mounting guides (12) on their opposite side walls, and the bottom of the mounting guides (12) has a disassembly port. The outer edges of the filter element (3) are inserted into and placed in the mounting guide (12) of the two adjacent legs (11) via the disassembly port, and slide along the guiding direction of the mounting guide (12).

9. The water-air heat exchanger according to claim 8, characterized in that, The cross-section of the mounting guide (12) is U-shaped or C-shaped.

10. The water-air heat exchanger according to any one of claims 1-5, characterized in that, The heat exchanger body (2) includes: shell; The core is an aluminum finned tube heat exchange core, which is installed inside the outer shell.

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