Air cooler and heat exchanger thereof
By using hydrophilic fins and multi-row perforation groups in the air cooler heat exchanger, and using the perforations on the fins for passing through heat exchange tubes as perforations for the fin electric heating tubes, the defrosting problem of the air cooler heat exchanger is solved. The problem of clean and low defrosting efficiency is solved, the effect of clean and efficient defrosting is achieved, and the process cost is reduced.
Patent Information
- Application Number
- CN202420278952.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-05
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-02-05
AI Technical Summary
After the existing air cooler heat exchanger is working for a period of time, when the air temperature is lower than 0℃, the fins and heat exchange pipes will frost, affecting the heat exchange efficiency and cooling capacity. The defrost process is complex, costly and low efficiency. .
Design a heat exchanger for air coolers that uses hydrophilic fins and multi-row perforation groups. The perforations on the fins for heat exchange tubes are used as perforations for the fin electric heating tubes, which reduces process complexity and cost, and at the same time increases The heating area of fins and heat exchange tubes improves defrosting efficiency.
It achieves clean defrosting and high defrosting efficiency, reduces process costs, and improves the cooling capacity and heat exchange efficiency of the air cooler.
Smart Images
Figure CN222378839U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchangers, and more specifically, to a heat exchanger for an air cooler. In addition, the utility model also relates to an air cooler comprising the heat exchanger for the air cooler. Background Art
[0002] An air cooler is a refrigeration device that uses a fan to force the indoor air to flow and exchange heat with the cold energy generated by the heat exchanger, thereby cooling the air.
[0003] The heat exchanger of the air cooler is mainly composed of multiple heat exchange tubes and multiple fins, among which multiple rows of perforations are processed on a single fin, and multiple fins are arranged at intervals along the length direction of the heat exchange tube. Multiple heat exchange tubes are sequentially penetrated with perforations on multiple fins to form multiple rows of heat exchange tubes. However, after the air cooler has been working for a period of time, the air temperature is lower than 0°C, and frost begins to form on the surface of the heat exchanger of the air cooler, that is, frost on the fins and heat exchange tubes, which will affect the heat exchange efficiency between the heat exchanger of the air cooler and the air, and reduce the cooling capacity of the air cooler. At present, electric heating tubes are mostly arranged between two adjacent rows of heat exchange tubes, and it is necessary to process perforations for the electric heating tubes between two adjacent rows of perforations on each fin. The process is complicated and the cost is high. In addition, due to the limited space of the unit, the number of electric heating tubes is limited, and the contact between the electric heating tubes and the fins is insufficient, resulting in unclean defrosting and low defrosting efficiency, which leads to low cooling capacity of the air cooler.
[0004] In summary, how to solve the current problems of unclean defrosting, low defrosting efficiency and high process cost of heat exchangers for air coolers is an urgent problem to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, an object of the utility model is to provide a heat exchanger for an air cooler, which has low process cost, clean defrosting and high defrosting efficiency.
[0006] Another object of the utility model is to provide an air cooler comprising the air cooler heat exchanger, wherein the air cooler has a higher refrigeration capacity.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A heat exchanger for a cold air machine, comprising:
[0009] The frame has a left end plate, a right end plate and a bottom end plate at its left end, right end and bottom plate, respectively, and the bottom end plate is provided with a drainage hole for connecting to the drainage port of the cooling fan;
[0010] A plurality of fins are arranged at intervals between the left end plate and the right end plate and are placed on the bottom end plate, and the fins are hydrophilic fins, and a plurality of rows of perforation groups are arranged at intervals along the width direction of the fins, and each row of the perforation groups is provided with a plurality of perforations arranged at intervals along the length direction of the fins;
[0011] A plurality of heat exchange tubes, one end of which is arranged on the left end plate, and the other end of which passes through the through holes of the plurality of fins in sequence and is arranged on the right end plate;
[0012] A plurality of finned electric heating tubes, one end of each of which is arranged on the left end plate, and the other end of each of which passes through the remaining part of the plurality of fins in sequence, and the through holes are arranged on the right end plate;
[0013] Among them, the number of the finned electric heating tubes is less than the number of the heat exchange tubes, each row of the perforated groups is penetrated by a plurality of the heat exchange tubes, and at least one row of the perforated groups in two adjacent rows is penetrated by a plurality of the finned electric heating tubes at intervals and evenly.
[0014] Preferably, the drainage holes are multiple and all are waist-shaped, and the multiple drainage holes are evenly arranged on the bottom end plate.
[0015] Preferably, the plurality of drainage holes are evenly arranged at equal distances along the length direction and the width direction of the bottom end plate to form a plurality of rows and columns of drainage hole groups, and the drainage hole groups are located directly below the plurality of fins.
[0016] Preferably, the bottom end plate is provided with a bottom plate electric heating tube group.
[0017] Preferably, the bottom plate electric heating tube group includes at least two bottom plate electric heating tubes, and at least two of the bottom plate electric heating tubes are arranged at intervals along the width direction of the bottom end plate and are not located in the drainage group.
[0018] Preferably, the bottom end plate is provided between the bottom ends of the left end plate and the right end plate, and both extend downward to below the bottom end plate to form an extension portion, and the extension portions of the left end plate and the right end plate are each provided with at least two avoidance holes.
[0019] Preferably, the avoidance holes are correspondingly arranged at both ends of each bottom plate electric heating tube, and the both ends of each bottom plate electric heating tube respectively pass through the corresponding avoidance holes and extend out of the frame.
[0020] Preferably, one end of any one of the two adjacent bottom plate electric heating tubes is a serpentine tube for heating the drain outlet of the air cooler.
[0021] A cold air fan comprises a shell, a fan motor assembly and the cold air fan heat exchanger as described in any one of the above items, wherein the cold air fan heat exchanger is arranged in the shell, and the bottom of the shell is a drain pan, and the side end of the drain pan is provided with a drain port, and the bottom end plate in the cold air fan heat exchanger is arranged close to the drain pan and located above it.
[0022] Preferably, the drain pan is tilted at a certain angle, and the drain port is located at a lower side end of the drain pan.
[0023] Compared with the above-mentioned related technologies, the air cooler heat exchanger provided by the utility model is used to be arranged in the shell of the air cooler, and the air cooler heat exchanger consists of a frame, a plurality of fins, a plurality of heat exchange tubes and a plurality of fin electric heating tubes, wherein the left end, the right end and the bottom end of the frame are respectively provided with a left end plate, a right end plate and a bottom end plate, and a drainage hole is provided on the left end plate, and the drainage hole is connected with the bottom drainage port of the air cooler; the fins are hydrophilic fins, and the plurality of fins are arranged between the left end plate and the right end plate at intervals and placed on the bottom end plate, each fin is provided with a plurality of rows of perforation groups at intervals along the width direction thereof, each row of perforation groups has a plurality of perforations, and the plurality of perforations are arranged at intervals along the length direction of the fin; one end of the plurality of heat exchange tubes is arranged on the left end plate, and the other end is sequentially passed through part of the perforations of the plurality of fins and is arranged on the right end plate, one end of the plurality of fin electric heating tubes is arranged on the left end plate, and the other end is sequentially passed through the remaining part of the perforations of the plurality of fins and is arranged on the right end plate, and each row of perforation groups is provided with a plurality of heat exchange tubes, That is to say, all or part of the perforations in a row of perforation groups are used to penetrate heat exchange tubes to form multiple rows of heat exchange tube groups, and the remaining part of the perforations in any row of perforation groups are used to penetrate fin electric heating tubes. In this way, when installing the fin electric heating tubes, the perforations on the fins used to penetrate the heat exchange tubes can be used as the perforations of the fin electric heating tubes, saving the unit setting space, and there is no need for secondary processing of the fins, reducing the process cost. In addition, at least one row of perforation groups in two adjacent rows of perforation groups is spaced and evenly penetrated with multiple fin electric heating tubes. That is to say, part of the perforations in at least one row of perforation groups in two adjacent rows of perforation groups are used to penetrate heat exchange tubes, and the remaining part of the perforations are used to penetrate fin electric heating tubes, and multiple fin electric heating tubes are spaced and evenly arranged along the length direction of the fins. In this way, the fin electric heating tube does not occupy additional setting space of the unit, and can ensure that the fin electric heating tube is in full contact with the fins to increase the heating area of the fins and heat exchange tubes, which is beneficial to remove frost on the fins and heat exchange tubes.
[0024] When the above structure is in use, multiple rows of heat exchange tube groups are used to transfer cold air to the air. After working for a period of time, the fins are first condensed into water when they encounter cold. The fins are made of hydrophilic material. Part of the condensed water on the fins first flows into the bottom plate under the action of gravity, and then is discharged through the drainage holes on the bottom plate and the drainage ports on the air cooler in turn. The condensed water on the fins is removed in time, which can reduce the amount of frost on the fins. The condensed water that has not been discharged on the fins is frosted, and then multiple fin electric heating tubes are used to heat the fins and radiate heat to multiple heat exchange tubes. The fins and heat exchange tubes are heated evenly, and the frost on the heat exchange tubes is liquefied into frosted water when it encounters heat and drips onto the bottom plate for discharge, so as to quickly and cleanly remove the frost on the heat exchange tubes. The frost on the fins is liquefied into frosted water when it encounters heat and is discharged in time using hydrophilic fins, so as to quickly and cleanly remove the frost on the fins.
[0025] To sum up, the finned electric heating tube in the present application utilizes the perforations on the fins used for inserting heat exchange tubes as perforations, and there is no need for secondary processing of the fins, thereby reducing process costs. In addition, the finned electric heating tube is in full contact with the fins to increase the heating area of the fins and the heat exchange tubes, and combined with the hydrophilic fins, it has a better drainage effect, so as to achieve clean defrosting and high defrosting efficiency, thereby improving the heat exchange efficiency and refrigeration capacity of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0027] Figure 1 An exploded view of the structure of the air cooler provided by the utility model;
[0028] Figure 2 A schematic diagram of the structure of the air cooler heat exchanger provided by the utility model;
[0029] Figure 3 The utility model is a schematic diagram of the arrangement of the finned electric heating tubes in the air cooler heat exchanger provided by the utility model.
[0030] In the figure:
[0031] 1 is the left end plate, 2 is the right end plate, 3 is the bottom end plate, 4 is the heat exchange end plate, 5 is the drainage hole, 6 is the fin, 7 is the perforation, 8 is the heat exchange tube, 9 is the fin electric heating tube, 10 is the tube clamp, 11 is the bottom plate electric heating tube, 12 is the avoidance hole, 13 is the serpentine tube, 14 is the drainage tray, 15 is the drainage port, 16 is the top plate, 17 is the left plate, 18 is the right plate, 19 is the front plate, 20 is the fan motor assembly, 21 is the hook, and 22 is the electronic control assembly. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] The core of the utility model is to provide a heat exchanger for an air cooler, which has low process cost, clean defrosting and high defrosting efficiency.
[0034] Another core of the utility model is to provide an air cooler including the air cooler heat exchanger, which has a higher refrigeration capacity.
[0035] It should be noted that, in the present embodiment, the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.
[0036] Please refer to Figures 1 to 3 The present application provides a heat exchanger for an air cooler, comprising a frame, a plurality of fins 6, a plurality of heat exchange tubes 8 and a plurality of fin electric heating tubes 9.
[0037] The left end, right end and bottom plate of the frame are respectively provided with a left end plate 1, a right end plate 2 and a bottom end plate 3. The bottom end plate 3 is provided with a drainage hole 5 for connecting to a drainage port 15 of the cooling fan.
[0038] A plurality of fins 6 are arranged at intervals between the left end plate 1 and the right end plate 2 and placed on the bottom end plate 3, and the fins 6 are hydrophilic fins, and a plurality of rows of perforation groups are arranged at intervals along the width direction of the fins 6, and each row of perforation groups is provided with a plurality of perforations 7 arranged at intervals along the length direction of the fin 6.
[0039] One ends of the plurality of heat exchange tubes 8 are all arranged on the left end plate 1 , and the other ends of the plurality of heat exchange tubes 8 are all sequentially passed through partial through holes 7 of the plurality of fins 6 and are arranged on the right end plate 2 .
[0040] One end of the plurality of finned electric heating tubes 9 is arranged on the left end plate 1 , and the other end thereof passes through the remaining through holes 7 of the plurality of fins 6 in sequence and is arranged on the right end plate 2 .
[0041] Among them, the number of finned electric heating tubes 9 is less than the number of heat exchange tubes 8, each row of perforated groups is penetrated by multiple heat exchange tubes 8, and at least one row of perforated groups in two adjacent rows of perforated groups is penetrated by multiple finned electric heating tubes 9 at intervals and evenly.
[0042] Please note that, please refer to Figure 1 The frame is arranged in the shell of the air cooler, and the bottom end plate 3 of the frame is provided with a drainage hole 5 for communicating with the drainage port 15 at the bottom of the air cooler, so that the water on the bottom end plate 3 can be discharged to the outside through the drainage hole 5 and the drainage port 15 in turn. In the prior art, a plurality of fins 6 are arranged at intervals, and each fin 6 is provided with a plurality of rows of perforation groups at intervals along its width direction, each row of perforation groups has a plurality of perforations 7, and the plurality of perforations 7 are arranged at intervals along the length direction of the fin 6, and a plurality of heat exchange tubes 8 are sequentially passed through all the perforations 7 of the plurality of fins 6 to form a plurality of rows of heat exchange tube groups for exchanging heat with the air to cool the air. In this application, please refer to Figure 3 , the perforations 7 on the fins 6 used for penetrating the heat exchange tubes 8 are used as the perforations 7 of the fin electric heating tubes 9. Specifically, all the perforations 7 in one row of perforation groups are used for penetrating the heat exchange tubes 8, part of the perforations 7 in another row of perforation groups adjacent to it are used for penetrating the heat exchange tubes 8, and the remaining part of the perforations 7 are used for penetrating the fin electric heating tubes 9, and the fin electric heating tubes 9 in this row of perforation groups are spaced and evenly arranged, or part of the perforations 7 in each row of perforation groups are used for penetrating the heat exchange tubes 8, and the remaining part of the perforations 7 are used for penetrating the fin electric heating tubes 9, and the fin electric heating tubes 9 in this row of perforation groups are spaced and evenly arranged, the above two In terms of arrangement, the finned electric heating tube 9 does not occupy additional space for the unit, and there is no need for secondary processing of the fin 6, thereby reducing the process cost. At the same time, the number of finned electric heating tubes 9 is less than the number of heat exchange tubes 8. Optionally, the ratio of the number of electric heating tubes to the number of heat exchange tubes 8 is between 6% and 12%, thereby ensuring that the finned electric heating tube 9 is in full contact with the fin 6 to increase the heated area of the fin 6, and the finned electric heating tube 9 and the fin 6 fully radiate heat to the heat exchange tube 8 to increase the heated area of the heat exchange tube 8, which is beneficial to removing frost on the fin 6 and the heat exchange tube 8, and at the same time can reduce the opening time of the finned electric heating tube 9, thereby reducing power consumption.
[0043] When the above structure is in use, multiple rows of heat exchange tube groups are used to transfer cold energy to the air. After working for a period of time, the fins 6 are first condensed into water when they are cold. The fins 6 are made of hydrophilic material. Part of the condensed water on the fins 6 first flows into the bottom plate 3 under the action of gravity, and then is discharged through the drainage holes 5 on the bottom plate 3 and the drainage port 15 on the air cooler in turn. The condensed water on the fins 6 is removed in time, which can reduce the amount of frost on the fins 6. The condensed water that has not been discharged on the fins 6 is frosted, and then a plurality of fin electric heating tubes 9 are used to heat the fins 6 and radiate heat to a plurality of heat exchange tubes 8. The fins 6 and the heat exchange tubes 8 are heated evenly. The frost on the heat exchange tubes 8 is liquefied into frosted water when it is heated and drips onto the bottom plate 3 for discharge, so as to quickly and cleanly remove the frost on the heat exchange tubes 8. The frost on the fins 6 is liquefied into frosted water when it is heated, and then is discharged in time by the hydrophilic fins, so as to quickly and cleanly remove the frost on the fins 6.
[0044] To sum up, the finned electric heating tube 9 in the present application utilizes the perforation 7 on the fin 6 for inserting the heat exchange tube 8 as the perforation 7, and there is no need for secondary processing of the fin 6, thereby reducing the process cost. In addition, the finned electric heating tube 9 is in full contact with the fin 6 to increase the heating area of the fin 6 and the heat exchange tube 8, and combined with the hydrophilic fin, it has a better drainage effect, so as to achieve clean defrosting and high defrosting efficiency, thereby improving the heat exchange efficiency and refrigeration capacity of the present application.
[0045] It should be noted that in the present application, the finned electric heating tube 9 and the heat exchange tube 8 can share all the perforations 7 on the fin 6, and the finned electric heating tube 9 can be fixed to the fin 6 using the tube clamp 10, which is convenient for installing and adjusting the layout position of the finned electric heating tube 9.
[0046] Based on the above examples, please refer to Figure 2 The drainage holes 5 are multiple and waist-shaped, and the multiple drainage holes 5 are evenly arranged on the bottom plate 3.
[0047] Specifically, a plurality of waist-shaped holes are arranged on the bottom plate 3 and are evenly distributed, so as to ensure that the frost water on the bottom plate 3 is discharged in time by increasing the size and number of the drainage holes 5, and to prevent the frost water from staying on the bottom plate 3 for a long time and frosting due to cold and being unable to be discharged smoothly.
[0048] It should be noted that the connection method between the multiple drainage holes 5 on the bottom end plate 3 and the drain port 15 of the air cooler is not unique. Each drainage hole 5 can be connected to the drain port 15 through a pipe to drain frost water. Another preferred connection method is that the bottom of the outer shell of the air cooler is usually closed, the drain port 15 is set at the bottom of the outer shell, and the bottom end plate 3 is located above the bottom of the outer shell of the air cooler. The frost water automatically drips to the bottom of the outer shell due to gravity, and the frost water is then discharged to the outside through the drain port 15.
[0049] Based on the above examples, please refer to Figure 2 , multiple drainage holes 5 are evenly arranged at equal distances along the length and width directions of the bottom plate 3 to form 5 groups of drainage holes in multiple rows and columns. Since the drainage holes 5 are waist-shaped holes, the waist-shaped holes are larger and densely distributed on the bottom plate 3 to achieve the effect of timely draining frost water. In addition, the drainage holes 5 group cannot exceed the width of the fins 6 to avoid air leakage. The air blown from the fan motor assembly 20 in the air cooler to the heat exchanger of the air cooler is cooled by heat exchange through multiple rows of heat exchange tube groups, thereby ensuring the cooling capacity of the air cooler of this application.
[0050] Based on the above examples, please refer to Figure 2 The bottom plate 3 is provided with a bottom plate electric heating tube group for heating the bottom plate 3 and radiating heat to the bottom of the shell to effectively prevent frost water dripping on the bottom plate 3 and the bottom of the shell from frosting, thereby keeping the frost water in a liquid state with fluidity, thereby ensuring smooth discharge of the frost water.
[0051] Based on the above embodiment, the bottom plate electric heating tube group includes at least two bottom plate electric heating tubes 11, and at least two bottom plate electric heating tubes 11 are arranged at intervals along the width direction of the bottom end plate 3 and are not located in the drainage group to ensure that the bottom end plate 3 and the bottom of the outer shell have a sufficiently large heating area, thereby ensuring that the frost water is heated evenly and effectively ensuring the smooth discharge of the frost water.
[0052] Based on the above examples, please refer to Figure 2 A bottom end plate 3 is provided between the bottom ends of the left end plate 1 and the right end plate 2, and both extend downward to the bottom of the bottom end plate 3 to form an extension portion, and the extension portions of the left end plate 1 and the right end plate 2 are each provided with at least two avoidance holes 12.
[0053] It should be noted that the left and right ends of the multiple heat exchange tubes 8 are respectively inserted on the left end plate 1 and the right end plate 2. Therefore, when the multiple heat exchange tubes 8 are heated, frost water will drip onto the bottom of the outer shell on the left side of the left end plate 1 and the bottom of the outer shell on the right side of the right end plate 2, and the frost water on the bottom end plate 3 will drip onto the bottom of the outer shell between the left end plate 1 and the right end plate 2.
[0054] Specifically, the bottom end plate 3 is arranged between the bottom ends of the left end plate 1 and the right end plate 2, and the bottom ends of the left end plate 1 and the right end plate 2 both extend downward to the bottom of the bottom end plate 3 and are fixed to the bottom of the outer casing of the air cooler, so that a certain distance is left between the bottom end plate 3 and the bottom of the outer casing to form an accommodating space for accommodating frost water dripping from the bottom end plate 3. Furthermore, at least two avoidance holes 12 are provided between the left end plate 1 and the right end plate 2 and the bottom of the outer casing to connect the accommodating space with the bottom of the outer casing of the air cooler, that is, the bottom of the outer casing on the left side of the left end plate 1, the accommodating space and the bottom of the outer casing on the right side of the right end plate 2 are connected to form a frost water flow channel. Even if the drain outlet 15 is set at any position at the bottom of the outer casing, the frost water flow channel is connected with the drain outlet 15 at the bottom of the outer casing to ensure smooth discharge of frost water.
[0055] Based on the above examples, please refer to Figure 2 , avoidance holes 12 are correspondingly arranged at the two ends of each bottom plate electric heating tube 11, and the two ends of each bottom plate electric heating tube 11 respectively pass through the corresponding avoidance holes 12 and extend out of the frame to avoid frost water from frosting at the bottom of the shell on the right side of the right end plate 2 and the bottom of the shell on the left side of the left end plate 1, so as to ensure that the frost water dripping on the bottom of the shell is discharged smoothly and at the same time ensure that the frost water is drained cleanly.
[0056] Furthermore, one end of any one of the two adjacent bottom plate electric heating tubes 11 is a serpentine tube 13, which is used to heat the drain outlet 15 of the air cooler. For example, the drain outlet 15 is arranged at the bottom of the outer shell located on the right side of the right end plate 2, and two bottom plate electric heating tubes 11 are taken as an example for explanation. The right end of any bottom plate electric heating tube 11 passes through the avoidance hole 12 of the right end plate 2 and extends to the drain outlet 15, and the right end of the bottom plate electric heating tube 11 is in the shape of a serpentine tube 13 to increase the heating area at the drain outlet 15, thereby avoiding the drainage effect affected by ice near the drain outlet 15.
[0057] Optionally, one end portion of two adjacent bottom plate electric heating tubes 11 are connected as a whole to form a U-shaped heat pipe, and the closed end of the U-shaped heat pipe passes through the left end plate 1 and extends out of the frame to increase the heating area of the bottom of the shell located on the left side of the left end plate 1. A serpentine tube 13 is arranged on one side of the open end of the U-shaped heat pipe to pass through the right end plate 2 and extend out of the frame to increase the heating area of the bottom of the shell located on the right side of the right end plate 2. Correspondingly, it is arranged at the bottom of the shell located on the right side of the right end plate 2, thereby increasing the heating area at the drain outlet 15.
[0058] This application also provides a cooling fan, please refer to Figure 1 , including a shell, a fan motor assembly 20 and the air cooler heat exchanger disclosed in the above embodiment, the air cooler heat exchanger is arranged in the shell, and the bottom of the shell is a drain pan 14, and the side end of the drain pan 14 is provided with a drain port 15, and the bottom end plate 3 in the air cooler heat exchanger is arranged close to the drain pan 14 and located above it.
[0059] Specifically, the shell is composed of a top plate 16, a left plate 17, a right plate 18, a front plate 19 and a drain pan 14. The air cooler heat exchanger is arranged in the shell. The left end plate 1 and the right end plate 2 are fixed on the drain pan 14 at intervals. At least two avoidance holes 12 are arranged between the two and the drain pan 14. A certain distance is left between the bottom end plate 3 and the drain pan 14 to form an accommodating space, and heat exchange end plates 4 are arranged on both sides of the multiple rows of heat exchange tube groups. The two heat exchange end plates 4 are placed between the left end plate 1 and the right end plate 2. The fan motor assembly 20 is arranged on the front plate 19 for blowing air to the multiple rows of heat exchange tube groups. In addition, considering that the viscosity of water will increase at low temperatures, preferably, the drain pan 14 is inclined at a certain angle, and the drain port 15 is located at the lower side end of the drain pan 14, and the inclination angle is greater than 1.5° to ensure smooth drainage. In addition, the front plate 19 of the air cooler is also provided with a hook 21 for convenient fixing and hanging, and an electric control component 22 for controlling the fan motor component 20. For the structures of other parts of the air cooler, please refer to the prior art and will not be described in detail herein.
[0060] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.
[0061] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0062] The above is a detailed introduction to a cold air blower and a heat exchanger provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A heat exchanger for a cooling fan, characterized in that: include: A frame, wherein the left end, the right end and the bottom plate are respectively provided with a left end plate (1), a right end plate (2) and a bottom end plate (3); the bottom end plate (3) is provided with a drainage hole (5) for connecting to a drainage port (15) of a cooling fan; A plurality of fins (6) are arranged at intervals between the left end plate (1) and the right end plate (2) and are placed on the bottom end plate (3); the fins (6) are hydrophilic fins, and the fins (6) are provided with a plurality of rows of perforation groups at intervals along the width direction thereof, and each row of the perforation groups is provided with a plurality of perforations (7) arranged at intervals along the length direction of the fins (6); A plurality of heat exchange tubes (8), one end of each of which is arranged on the left end plate (1), and the other end of each of which sequentially passes through a portion of the plurality of fins (6) and the through holes (7) are arranged on the right end plate (2); A plurality of finned electric heating tubes (9), one end of each of which is arranged on the left end plate (1), and the other end of each of which sequentially passes through the remaining portion of the plurality of fins (6), and the through holes (7) are arranged on the right end plate (2); The number of the finned electric heating tubes (9) is less than the number of the heat exchange tubes (8), each row of the perforated groups is provided with a plurality of the heat exchange tubes (8), and at least one of the two adjacent rows of the perforated groups is provided with a plurality of the finned electric heating tubes (9) spaced and evenly spaced.
2. The air cooler heat exchanger according to claim 1, characterized in that: The drainage holes (5) are provided in a plurality and are all waist-shaped, and the plurality of drainage holes (5) are evenly arranged on the bottom end plate (3).
3. The air cooler heat exchanger according to claim 2, characterized in that: The plurality of drainage holes (5) are evenly arranged at equal distances along the length direction and the width direction of the bottom end plate (3) to form a plurality of rows and columns of drainage hole (5) groups, and the drainage hole (5) groups are located directly below the plurality of fins (6).
4. The air cooler heat exchanger according to claim 3, characterized in that: The bottom end plate (3) is provided with a bottom plate electric heating tube group.
5. The air cooler heat exchanger according to claim 4, characterized in that: The bottom plate electric heating tube group comprises at least two bottom plate electric heating tubes (11), and the at least two bottom plate electric heating tubes (11) are arranged at intervals along the width direction of the bottom end plate (3) and are not located in the drainage hole group.
6. The air cooler heat exchanger according to claim 5, characterized in that: The bottom end plate (3) is provided between the bottom ends of the left end plate (1) and the right end plate (2), and both extend downward to below the bottom end plate (3) to form an extension portion, and the extension portions of the left end plate (1) and the right end plate (2) are both provided with at least two avoidance holes (12).
7. The air cooler heat exchanger according to claim 6, characterized in that: The two ends of each bottom plate electric heating tube (11) are correspondingly provided with the avoidance holes (12), and the two ends of each bottom plate electric heating tube (11) respectively pass through the corresponding avoidance holes (12) and extend out of the frame.
8. The air cooler heat exchanger according to claim 7, characterized in that: One end of any one of the two adjacent bottom plate electric heating tubes (11) is a serpentine tube (13) for heating the drain outlet (15) of the air cooler.
9. A cooling fan, characterized in that: The invention comprises a casing, a fan motor assembly (20) and the air cooler heat exchanger according to any one of claims 1 to 8, wherein the air cooler heat exchanger is arranged in the casing, and the bottom of the casing is a drain pan (14), and the side end of the drain pan (14) is provided with a drain port (15), and the bottom end plate (3) in the air cooler heat exchanger is arranged close to the drain pan (14) and located above it.
10. The air cooler according to claim 9, characterized in that: The drain pan (14) is tilted at a certain angle, and the drain port (15) is located at the lower side end of the drain pan (14).