Heat exchanger structure and air conditioning equipment

Abstract

The utility model provides a kind of heat exchanger structure and air conditioning equipment, heat exchanger structure includes: spray pipeline and the heat pipe group being arranged below spray pipeline, it is characterized in that, the spray pipeline includes multiple spray pipes, the circumference of the spray pipe is equipped with multiple groups of spray holes, each group The spray hole is interval arranged along the length direction of spray pipe, and multiple groups of spray holes are staggered arrangement in the length direction of spray pipe.The utility model is arranged by multiple groups of staggered arrangement spray holes in the circumference of spray pipe, water flow is more evenly distributed along the length direction of spray pipe, can effectively avoid the local overwetting or dry area phenomenon caused by spray hole arrangement concentration in traditional spray structure, enhance the uniformity of water distribution, to improve the heat exchange efficiency of the surface of heat pipe group, and reduce the problem of scale deposition uneven.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a heat exchanger structure and air conditioning equipment. Background Technology

[0002] Evaporative coolers are a new type of cooling equipment that organically combines the advantages of spray-type tube coolers and circulating cooling towers. The cooler adopts a counter-flow structure and mainly includes a fan, casing, water collection pan, cooling heat exchange tube assembly, steel structure frame, air vents, circulating water pump, float valve, etc. It features a large heat exchange area for the cooling tubes and low system resistance. It has a compact structure and small footprint. Its modular design allows for independent unit operation, and it can be easily expanded or adjusted according to the system's production capacity. Due to these advantages, evaporative coolers are increasingly favored in commercial applications with limited space.

[0003] The cooling heat exchange tube assembly of the cooler needs to be cooled by spraying water through a spray water system. However, the spray water sprayed from the spray pipes of the existing spray water system tends to concentrate in a single spray direction, which can easily lead to uneven water distribution in the spray water system and thus affect the heat exchange efficiency of the heat exchange tubes. Utility Model Content

[0004] In order to solve the technical problem of uneven water distribution in the existing spray water system, this utility model proposes a heat exchanger structure and air conditioning equipment.

[0005] The technical solution adopted in this utility model is:

[0006] This utility model proposes a heat exchanger structure, including: a spray pipe and a heat exchange tube group arranged below the spray pipe. The spray pipe includes multiple spray pipes, and multiple sets of spray holes are provided around the circumference of the spray pipes. Each set of spray holes is spaced apart along the length direction of the spray pipe, and the multiple sets of spray holes are staggered in the length direction of the spray pipes.

[0007] Furthermore, the multiple sets of spray holes on the spray pipe include: a first set of spray holes located below the spray pipe; and a second set of spray holes and a third set of spray holes located on both sides of the spray pipe, respectively.

[0008] The sprinkler piping includes:

[0009] Multiple spray pipes are installed at the same height and arranged in parallel at intervals;

[0010] A main water pipe is located at the end of the plurality of spray pipes and is connected to each of the spray pipes.

[0011] The heat exchanger structure also includes a baffle assembly, wherein the bottom of the multiple baffles of the baffle assembly are respectively located between the multiple spray pipes, guiding the spray water sprayed from the spray holes on the side of the spray pipes to the area between the heat exchange tubes of the heat exchange tube group.

[0012] Furthermore, the multiple water baffles of the water baffle assembly are arranged in parallel at intervals in the horizontal direction, and the end face of the area above the bottom of the water baffle is wavy.

[0013] Furthermore, the top of the baffle is equipped with barbs.

[0014] Furthermore, multiple water receiving troughs are provided between the spray pipes and the heat exchange tube assembly. Each water receiving trough corresponds to one of the spray pipes and is located directly below the spray pipe. Each water receiving trough has multiple drainage holes along its length.

[0015] The heat exchanger tube assembly consists of multiple rows of heat exchanger tubes, each row containing multiple heat exchanger tubes spaced apart along the height direction, with adjacent rows of heat exchanger tubes staggered vertically.

[0016] The heat exchanger structure also includes: packing and a water receiving pan arranged sequentially at the bottom of the heat exchange tube assembly, a fan arranged at the top, a water pump assembly connecting the water receiving pan and the spray pipe, and a water treatment device arranged in the water receiving pan.

[0017] This utility model proposes an air conditioning device, including the heat exchanger structure described above.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. By setting multiple sets of staggered spray holes around the circumference of the spray pipe, the water flow is more evenly distributed along the length of the spray pipe. This can effectively avoid the phenomenon of local over-wetting or dry areas caused by the concentrated arrangement of spray holes in traditional spray structures, enhance the uniformity of water distribution, thereby improving the heat exchange efficiency of the heat exchange tube assembly surface and reducing the problem of uneven scale deposition.

[0020] 2. By setting baffles to direct the sprayed water between adjacent heat exchange tubes, the ambient mist level in the heat exchange tube group area is raised, ensuring that the sprayed water can simultaneously cool the surrounding area of ​​the heat exchange tubes, thereby further improving heat exchange efficiency.

[0021] 3. The wavy design of the baffle plate's end face prevents coolant from splashing upwards and flowing away due to the airflow from the top fan. Simultaneously, hot air flows smoothly upwards along the wavy gaps, effectively dissipating heat. When hot air carrying evaporated water vapor rises, the barbs guide it back along the inner side of the barbs to the heat exchange tube area. This effectively reduces coolant loss due to evaporation without obstructing airflow, maintaining a continuously moist surface on the heat exchange tubes and enhancing cooling efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the upper part of the heat exchanger structure in an embodiment of this utility model;

[0024] Figure 2 This is a top view of the upper part of the heat exchanger structure in an embodiment of this utility model;

[0025] Figure 3 yes Figure 2 AA section diagram;

[0026] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0027] Figure 5 This is a front view of the spray pipe in an embodiment of this utility model;

[0028] Figure 6 This is a top view of the spray pipe in an embodiment of this utility model;

[0029] Figure 7 This is a structural schematic diagram of the baffle assembly in an embodiment of this utility model;

[0030] Figure 8 This is a top view of the baffle assembly in an embodiment of this utility model;

[0031] Figure 9 yes Figure 8 AA section diagram;

[0032] Figure 10 This is a front view of the heat exchange tube bank in an embodiment of this utility model;

[0033] Figure 11 This is a schematic diagram of the structure in an embodiment of this utility model;

[0034] 1. Sprinkler piping;

[0035] 11. Sprinkler pipe; 12. Main water pipe; 13. Spray nozzle;

[0036] 2. Heat exchanger tube assembly;

[0037] 21. Heat exchanger tube bank; 211. Heat exchanger tube; 212. Heat exchanger manifold;

[0038] 3. Water baffle assembly;

[0039] 31. Water baffle; 32. Barrel hook;

[0040] 4. Water tank;

[0041] 5. Packing assembly;

[0042] 6. Water drip tray;

[0043] 7. Fan;

[0044] 8. Shell;

[0045] 9. Water pump assembly; Detailed Implementation

[0046] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0047] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0048] Cooling equipment is generally used in large air conditioning units and is centrally located outdoors. It specifically includes a cooler, which typically cools its condenser through a spray water system. However, the spray water from the spray pipes of existing spray water systems tends to concentrate in a single spray direction, resulting in uneven water distribution in the spray water system and thus affecting the heat exchange efficiency of the heat exchange tubes.

[0049] In this regard, such as Figure 1 , 5 As shown in Figure 6, this utility model proposes a heat exchanger structure, specifically a condenser for a cooling device, including a shell 8 and a spray pipe 1 and a heat exchange tube assembly 2 installed inside the shell. Wherein:

[0050] The housing 8 is generally rectangular frame-shaped, with the spray pipe 1 located on top of the housing 8. The spray pipe 1 includes multiple spray pipes 11, each with multiple sets of spray holes 13 along its circumference. Each set of spray holes 13 is spaced apart along the length of the spray pipe 11, forming multiple rows of spray holes 13. The multiple sets of spray holes 13 are staggered along the length of the spray pipe 11, making the water distribution coverage of the spray pipe 11 more uniform. This staggered arrangement is achieved by adjusting the starting position of different sets of spray holes, ensuring that the water flow distribution along the length of the spray pipe has no overlapping areas, reducing local water flow overload or sparseness.

[0051] The heat exchange tube assembly 2 is located below the spray pipe 1 to receive the spray water and exchange heat with the condensate inside the tube. The spray pipe 11 is positioned vertically opposite the heat exchange tube assembly 2 to ensure that the spray water flow can fully cover the surface of the heat exchange tubes and improve the heat exchange efficiency.

[0052] By setting multiple sets of staggered spray holes around the circumference of the spray pipe, the water flow is more evenly distributed along the length of the spray pipe. This can effectively avoid the phenomenon of local over-wetting or dry areas caused by the concentrated arrangement of spray holes in traditional spray structures, enhance the uniformity of water distribution, thereby improving the heat exchange efficiency of the heat exchange tube assembly surface and reducing the problem of uneven scale deposition.

[0053] In a specific embodiment, the spray pipe 11 comprises three sets of spray holes. The first set of spray holes 13 is located directly below the spray pipe, facing the heat exchange tube assembly below, and is used to achieve vertical water distribution. The second and third sets of spray holes are symmetrically distributed on the left and right sides of the spray pipe, forming a triangular distribution layout with the first set of spray holes. This grouping method expands the spray coverage area by extending the spray holes from a single direction to the bottom and sides, reducing the localized dry areas on the heat exchange tube surface caused by unilateral spraying.

[0054] The first set of nozzles guides the main water flow, while the second and third sets on both sides supplement the edge coverage, preventing the water flow from concentrating only directly below the spray pipes. This allows the sprayed water to be distributed more evenly across the entire water-facing surface of the heat exchange tube bundle, especially improving the problem of heat exchange efficiency reduction caused by insufficient side spraying on the sides of the tube bundle in traditional structures.

[0055] In specific embodiments, such as Figure 1 , 11 As shown, the sprinkler system 1 specifically includes multiple sprinkler pipes 11 and a main water pipe 12, wherein:

[0056] Multiple spray pipes 11 are arranged at the same height in a parallel and spaced manner, forming an equal-height arrangement. The main water pipe 12 is located at the end of the spray pipes 11 and is connected to each spray pipe 11, serving as a unified supply channel for coolant.

[0057] The parallel spacing of the spray pipes 11 ensures that the coolant coverage is evenly expanded during spraying, avoiding uneven flow caused by differences in pipe height. The connection between the main water pipe and the spray pipes allows the coolant to be distributed to each spray pipe at a balanced pressure, reducing spray volume deviation caused by differences in pipe resistance. The matching structure between the spray pipes and the main water pipe simplifies the complexity of pipe connections while ensuring consistent flow when multiple spray pipes are working simultaneously.

[0058] In addition, the two ends of the multiple spray pipes 11 are bent upwards and then connected to the main water pipe 12. That is, the main water pipe 12 and the pipe section with spray holes of the spray pipes 11 are not at the same height.

[0059] like Figures 2 to 4As shown, the heat exchanger structure also includes a baffle assembly 3, which comprises multiple independent baffles 31. The bottom of each baffle 31 is inserted into the gap area between two adjacent spray pipes 11. The baffles are positioned so that the spray water ejected from the spray holes on the circumferential side of the spray pipes is directed to the gap area between adjacent heat exchange pipes in the heat exchange tube group.

[0060] The spray water sprayed from the side nozzles of the spray pipe 11 flows downward along the surface of the baffle plate 31 after contacting the baffle plate 31, and is guided to the space between the adjacent heat exchange pipes 211 of the heat exchange pipe group 2, raising the ambient mist level in the heat exchange pipe group area, ensuring that the spray water can simultaneously cool the surrounding area of ​​the heat exchange pipes, and further improving the heat exchange efficiency.

[0061] In a specific embodiment, the baffle assembly 3 includes multiple baffles 31 arranged in parallel at intervals. The bottom of each baffle 31 is located below the gap between adjacent spray pipes 11, and the end face of its top area has a wavy structure.

[0062] The wavy design on the end face of the baffle plate creates an undulating structure in the horizontal direction. Its raised parts prevent coolant from splashing upwards and flowing away due to the airflow from the top fan, while the recessed parts provide a channel for hot air, allowing it to flow smoothly upwards along the wavy gaps and effectively dissipate heat. At the same time, the wavy design of the baffle plate reduces airflow resistance, balancing the needs of coolant retention and airflow, and improving the overall heat dissipation performance of the condenser.

[0063] In a further embodiment, each baffle plate 31 is provided with a barb structure at its top. The barb 32 extends outwards along the top of the baffle plate. When hot air carrying evaporated water vapor rises, the barb 32 guides it back along its inner surface to the heat exchange tube area. This effectively reduces coolant loss due to evaporation without obstructing airflow, maintaining a continuously moist surface on the heat exchange tubes and enhancing cooling efficiency. This structure achieves water vapor recovery in a simple mechanical form, reducing coolant consumption during operation and improving the stability of the heat exchange system.

[0064] Specifically, such as Figure 3 , 4As shown, the heat exchanger structure also includes multiple water receiving tanks 4, which are located between the spray pipes and the heat exchange tube assembly, and between the upper and lower heat exchange zones of the heat exchange tube assembly. Each water receiving tank 4 corresponds to a spray pipe and is located directly below the spray pipe, receiving the spray water sprayed from the bottom nozzles of the spray pipe (the water receiving tank between the upper and lower heat exchange zones of the heat exchange tube assembly receives the spray water dripping from the upper heat exchange tube). The interval between two adjacent water receiving tanks 4 is directly opposite the bottom of the baffle plate. Multiple drainage holes are evenly distributed along the length of the water receiving tank. After the spray water is sprayed from the spray pipe 11, the liquid sprayed from the nozzles below the spray pipe 11 falls directly into the water receiving tank, and then flows through the drainage holes to the lower heat exchange tube 211. This reduces the flow rate of the spray water, allowing for better heat exchange with the heat exchange tube, while avoiding interference with the spray water on both sides. The coolant sprayed from the spray holes 13 on the side of the spray pipe 11 is guided by the baffle plate 31 and passes through the gap between adjacent water tanks to cool the surrounding area of ​​the heat exchange pipe.

[0065] In specific embodiments, such as Figure 10 As shown, the heat exchanger tube assembly 2 includes multiple rows of heat exchanger tubes 21. Each row of heat exchanger tubes 21 contains multiple heat exchanger tubes 211 arranged at intervals along the height direction, and a heat exchanger manifold 212 connected to both ends of the heat exchanger tubes 211. One heat exchanger manifold 212 has a condensate inlet at the upper end and a condensate outlet at the lower end. The interior of the heat exchanger manifold has multiple partitions along its length, forming a bamboo-like partition. The partitions of two heat exchanger manifolds are staggered, causing the condensate to flow downwards in a serpentine pattern, i.e., the condensate passes through the tubes sequentially from top to bottom; for example, it first passes through the 1st to 3rd heat exchanger tubes from top to bottom, then the 3rd to 6th, and so on until it flows out from the condensate outlet at the lower end. This divides the cooling process of each row of heat exchanger tubes from top to bottom into a superheated region, a condensing region, and a subcooled region. Adjacent rows of heat exchanger tubes are also staggered vertically. The cooling water flowing from top to bottom is separated by the heat exchange tubes and can then flow onto adjacent heat exchange tubes. This ensures that the water flow outside the tubes is evenly distributed on the surface of the heat exchange tubes, solving the problems of uneven evaporation spots and uneven heat exchange caused by uneven liquid distribution in conventional methods.

[0066] In specific embodiments, such as Figure 11 As shown, the heat exchanger structure also includes: a packing assembly 5, a water receiving tray 6, a fan 7, and a water circulation system. Among them:

[0067] The packing assembly 5, located at the bottom of the heat exchange tube group 2, consists of multiple layers of packing and is used to enhance the gas-liquid contact area and capture incompletely evaporated spray water. A drip tray 6, located below the packing assembly 5, collects coolant dripping from the packing and condensate. A fan 7 is installed at the top of the casing 8 to accelerate the exhaust of hot air and promote coolant evaporation through airflow.

[0068] The water circulation system includes a water pump assembly 9 and a water treatment unit. The water pump assembly 9 connects the water receiving pan 6 to the spray pipe 1, transporting the collected spray water back to the spray pipe 1 for recycling. The water treatment unit (not shown in the figure) is integrated into the water receiving pan or the water circulation system, filtering or chemically treating the recovered coolant to maintain the stability of the circulating water quality (for example, the water treatment unit generates an electromagnetic field that prevents calcium and magnesium ions from crystallizing, achieving descaling and scale prevention). Additionally, the spacing between adjacent heat exchange tubes is greater than 40mm to facilitate mechanical water spray cleaning and descaling.

[0069] This structure extends the coolant flow path and improves heat exchange efficiency through a packing assembly. The water tray and pump assembly achieve a closed-loop coolant circulation, reducing resource consumption. The addition of a water treatment unit ensures the cleanliness of the circulating liquid, preventing clogging of spray pipes or contamination of heat exchange surfaces. The combination of the top fan and bottom packing forms a three-dimensional gas-liquid interaction path, enhancing the overall efficiency of the condensation process. This design effectively reduces energy consumption and maintenance costs in industrial condensation scenarios and is suitable for cooling demands under high-load, continuous operation.

[0070] This invention also proposes an air conditioning device, including the aforementioned heat exchanger structure, which can improve the heat exchange efficiency of the heat exchange tubes.

[0071] It should be noted that the terminology used above is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0072] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0073] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0074] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

Claims

1. A heat exchanger structure, comprising: The spray pipe and the heat exchange tube assembly disposed below the spray pipe are characterized in that the spray pipe includes multiple spray pipes, and the spray pipes are provided with multiple sets of spray holes in the circumferential direction. Each set of spray holes is spaced apart along the length direction of the spray pipe, and the multiple sets of spray holes are staggered in the length direction of the spray pipe.

2. The heat exchanger structure as described in claim 1, characterized in that, The multiple sets of spray holes on the spray pipe include: a first set of spray holes located below the spray pipe; and a second set of spray holes and a third set of spray holes located on both sides of the spray pipe.

3. The heat exchanger structure as described in claim 1, characterized in that, The spray piping includes: Multiple spray pipes are installed at the same height and arranged in parallel at intervals; A main water pipe is located at the end of the plurality of spray pipes and is connected to each of the spray pipes.

4. The heat exchanger structure as described in claim 1, characterized in that, The heat exchanger structure further includes a baffle assembly, wherein the bottom of multiple baffles of the baffle assembly are respectively located between multiple spray pipes, guiding the spray water sprayed from the spray holes on the side of the spray pipes to the area between the heat exchange pipes of the heat exchange tube group.

5. The heat exchanger structure as described in claim 4, characterized in that, The multiple water baffles of the water baffle assembly are arranged in parallel at intervals in the horizontal direction, and the end face of the area above the bottom of the water baffle is wavy.

6. The heat exchanger structure as described in claim 4, characterized in that, The top of the water baffle is provided with a barb.

7. The heat exchanger structure as described in claim 1, characterized in that, Multiple water collection troughs are also provided between the spray pipe and the heat exchange tube group. Each water collection trough corresponds to one of the spray pipes and is located directly below the spray pipe. Each water collection trough has multiple water leakage holes along its length.

8. The heat exchanger structure as described in claim 1, characterized in that, The heat exchange tube group includes multiple rows of heat exchange tubes, each row of which contains multiple heat exchange tubes arranged at intervals along the height direction, and adjacent rows of heat exchange tubes are staggered vertically.

9. The heat exchanger structure as described in claim 1, characterized in that, Also includes: The packing and water receiving pan are arranged sequentially at the bottom of the heat exchange tube assembly, the fan is arranged at the top, the water pump assembly connecting the water receiving pan and the spray pipe is arranged, and the water treatment device is arranged in the water receiving pan.

10. An air conditioning device, characterized in that, Includes the heat exchanger structure as described in any one of claims 1 to 9.

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