Heat exchanger assembly and air conditioner

Abstract

The utility model relates to the technical field of refrigeration, and discloses a heat exchanger assembly and an air conditioner. The heat exchanger assembly comprises a heat exchanger which comprises a plurality of fins arranged side by side at intervals, and the fins comprise the first fin and the second fin which are located at the two ends of the heat exchanger correspondingly; the spraying device comprises one or more spraying pipes, the spraying pipes are arranged on the outer side of the heat exchanger, the spraying pipes extend in the arrangement direction of the fins, a plurality of spraying holes are formed in the spraying pipes in the length direction, and a spraying solution in the spraying pipes can be sprayed to the heat exchanger through the spraying holes; in the arrangement direction of the multiple fins, the maximum number of the spraying holes is smaller than or equal to the ratio of the distance between the first fins and the second fins to the distance between every two adjacent fins. Therefore, the spraying range of the spraying solution sprayed out of the spraying holes is long, the spraying solution can flow into the heat exchanger, the heat exchange capacity of the spraying solution and the heat exchanger is fully improved, and the cooling speed of the heat exchanger is increased.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, for example, to a heat exchanger assembly and an air conditioner. Background Art

[0002] At present, in the summer, when the air conditioner is running in cooling mode, the outdoor heat exchanger acts as a condenser, and the refrigerant circulates in the condenser to condense and release heat. When the air conditioner is running in a high temperature environment, the outdoor unit of the air conditioner is limited in installation space, the ventilation is not smooth, or the condenser is dirty and blocked, it may cause the condenser heat exchange capacity to be insufficient or the compressor operating condition to be too high, and even the system may shut down due to high-pressure protection, which seriously affects user use. At the same time, the unit has extremely low energy efficiency and consumes a lot of electricity.

[0003] In the related art, a spray cooling device is generally installed on the outdoor unit of the air conditioner, and a device capable of spraying water to the outdoor heat exchanger is arranged above the outdoor heat exchanger, so that the cooling water evaporates on the surface of the condenser to improve the heat exchange effect of the condenser. The current spray cooling device for the outdoor unit of the air conditioner includes a water pipe, a water outlet hole is arranged on the water pipe, and a nozzle is installed on the water outlet hole. If the outdoor heat exchange area of ​​the condenser is large, or it is necessary to dissipate heat for multiple condensers at the same time, multiple water outlet holes are arranged on the water pipe at intervals according to the total heat exchange area of ​​the condenser, and nozzles are installed in the water outlet holes; a large area is sprayed through the nozzle.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the spray cooling device of the related art, water is sprayed onto the surface of the heat exchanger in the form of mist. Since the pressure of the diffused water mist sprayed through the nozzle becomes smaller, it cannot reach the inside of the heat exchanger. For a larger heat exchanger or multiple heat exchangers, the heat exchange effect of the inner layer or the inner layer of the heat exchanger is often worse than that of the outer layer or the outer layer of the heat exchanger due to the temperature difference. After spraying, the heat exchange effect of the spray on the heat exchanger becomes worse.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a heat exchanger assembly and an air conditioner to increase the spraying depth of water sprayed by a spraying device and improve the spraying heat exchange effect of the heat exchanger.

[0009] An embodiment of the present disclosure provides a heat exchanger assembly, which includes: a heat exchanger, including a plurality of fins arranged side by side and spaced apart, the plurality of fins including a first fin and a second fin respectively located at two ends of the heat exchanger; a spray device, including one or more spray pipes, the spray pipes are arranged on the outside of the heat exchanger, the spray pipes extend along the arrangement direction of the plurality of fins, the spray pipes are provided with a plurality of spray holes along the length direction, and the spray solution in the spray pipes can be sprayed to the heat exchanger through the spray holes; wherein, along the arrangement direction of the plurality of fins, the maximum number of the spray holes is less than or equal to the ratio of the distance between the first fin and the second fin to the distance between two adjacent fins.

[0010] Optionally, the distance between any two adjacent spray holes is greater than or equal to the distance between any two adjacent fins.

[0011] Optionally, the distance d between two adjacent spray holes is ≤2Xtanα; wherein X is the shortest distance from the wall of the fin facing the spray hole to the spray pipe, and α is the angle between the outermost edge of the liquid outlet range of the spray hole and the liquid outlet center line of the spray hole.

[0012] Optionally, X≥D / tanα; wherein D is the distance between two adjacent fins.

[0013] Optionally, the heat exchanger assembly also includes: a fan, arranged corresponding to the heat exchanger, for driving airflow through the heat exchanger; wherein at least part of the spray holes are inclined in a direction away from the fan; and / or the flow rate of the spray holes m≤Q / 236, wherein Q is the air volume of the fan.

[0014] Optionally, when the fan is located at the top of the heat exchanger, the spray pipe is arranged in the middle or upper part of the heat exchanger, and at least part of the spray holes are inclined downward; or, when the fan is located in the middle part of the heat exchanger, the spray pipe is arranged in the middle part of the heat exchanger, and the multiple spray holes include: a first spray hole, which is multiple in number and is inclined upward; a second spray hole, which is multiple in number and is inclined downward; wherein the multiple first spray holes and the multiple second spray holes are arranged in sequence at intervals along the length direction of the spray pipe.

[0015] Optionally, the fan is located at the top of the heat exchanger, and when the spray hole is inclined downward, the inclination angle of the spray hole ranges from 15 degrees to 60 degrees.

[0016] Optionally, when the fan is located in the middle of the heat exchanger, the first spray hole is inclined upward at an angle ranging from 30 degrees to 60 degrees; and / or, the second spray hole is inclined downward at an angle ranging from 30 degrees to 60 degrees.

[0017] An embodiment of the present disclosure further provides an air conditioner, the air conditioner comprising an outdoor unit, the outdoor unit comprising a heat exchanger assembly as described in any one of the above embodiments.

[0018] Optionally, the air conditioner also includes: a liquid inlet pipe, the liquid outlet end of which is connected to the liquid inlet end of the spray pipe, for providing spray solution to the spray pipe; wherein, when the number of outdoor units is multiple and parallel, each outdoor unit is provided with a corresponding liquid inlet pipe, and the multiple liquid inlet pipes are connected in series, and along the flow direction of the spray solution in the multiple liquid inlet pipes, the diameters of the liquid inlet pipes corresponding to the multiple outdoor units gradually decrease.

[0019] The heat exchanger assembly and air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The heat exchanger assembly of the embodiment of the present disclosure is provided with a spray pipe on the outside of the heat exchanger, and the spray pipe is provided with a spray hole. The spray hole enables the spray solution in the spray pipe to be sprayed on the heat exchanger in a columnar form. Compared with the setting of the nozzle, the spray pressure of the spray solution sprayed from the spray hole is greater, so that the spray solution sprayed from the spray hole has a longer range, and the spray solution can flow into the interior of the heat exchanger, fully improving the heat exchange capacity between the spray solution and the heat exchanger, and improving the cooling rate of the heat exchanger. Moreover, there is no need to install a nozzle, the structure is simple, not easy to damage, long service life, and low cost. In addition, compared with installing a nozzle, the spray coverage area of ​​a single nozzle is larger. If a single nozzle is damaged or dirty, it will have a greater impact on the heat exchanger. The spray pipe of the embodiment of the present disclosure sprays through the spray hole, and the spray area of ​​the spray hole is small. The blockage of a single spray hole has little effect on the heat exchange of the heat exchanger. In addition, along the direction in which the multiple fins are arranged, the number of spray holes is less than or equal to the ratio of the effective length of the heat exchanger to the distance between adjacent fins, so that the multiple spray pipes of the spray pipe always have positions corresponding to the positions between the spray pipes and the fins, so that the spray solution of the spray pipe can be sprayed into the inner layer of the heat exchanger, thereby improving the cooling capacity. Moreover, the processing difficulty and processing cost of the spray holes are reduced, and the strength of the spray pipe is guaranteed.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 It is a schematic diagram of the matching structure of a heat exchanger and a spray pipe provided in an embodiment of the present disclosure;

[0024] Figure 2is a schematic diagram of the matching structure of another heat exchanger and a spray pipe provided in an embodiment of the present disclosure;

[0025] Figure 3 is a schematic diagram of a cross-sectional structure of a spray pipe provided in an embodiment of the present disclosure;

[0026] Figure 4 is a schematic structural diagram of a cross section of another spray pipe provided in an embodiment of the present disclosure;

[0027] Figure 5 It is a schematic diagram of the structure of a multi-row heat exchanger provided in an embodiment of the present disclosure.

[0028] Reference numerals:

[0029] 10. heat exchanger; 101. fin; 102. first fin; 103. second fin; 104. refrigerant pipeline; 20. spray pipe; 201. spray hole. DETAILED DESCRIPTION

[0030] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0031] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0032] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0033] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0034] Unless otherwise stated, the term "plurality" means two or more.

[0035] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0037] Combination Figures 1 to 5 As shown, an embodiment of the present disclosure provides a heat exchanger assembly, which includes a heat exchanger 10 and a spray device. The heat exchanger 10 includes fins 101 and a refrigerant pipeline 104. There are multiple fins 101, and the multiple fins 101 are arranged side by side at intervals. The refrigerant pipeline 104 is filled with refrigerant, and the refrigerant pipeline 104 passes through the multiple fins 101 in sequence to form the heat exchanger 10.

[0038] Alternatively, if Figure 1 and Figure 2 As shown, the spray device includes a spray pipe 20, which is arranged outside the heat exchanger 10, and the spray pipe 20 extends along the arrangement direction of the multiple fins 101, that is, the length direction of the spray pipe 20 is consistent with the arrangement direction of the multiple fins 101. The spray pipe 20 is provided with multiple spray holes 201 along the length direction, so that the spray solution sprayed from the spray holes 201 can flow to different fins 101 or the refrigerant pipeline 104 between the fins 101, thereby increasing the contact area between the spray solution sprayed from the spray pipe 20 and the heat exchanger 10, and increasing the cooling speed of the heat exchanger 10. In addition, the spray solution in the spray pipe 20 can be directly sprayed to the heat exchanger 10 through the spray hole 201, so that the spray solution sprayed from the spray hole 201 is columnar, which increases the liquid outlet pressure of the spray hole 201, thereby increasing the range of the spray solution sprayed from the spray hole 201, so that the spray solution can be sprayed into the inner layer of the heat exchanger 10, so that the spray solution can enter the refrigerant pipeline 104 inside the fin 101, so that the spray solution can fully contact the refrigerant pipeline 104, thereby increasing the cooling rate. In addition, the setting of the spray hole 201 is simple and easy to operate, with low cost and simple installation, which improves the convenience of production and installation of the spray device.

[0039] Alternatively, if Figure 1 As shown, the multiple fins 101 include a first fin 102 and a second fin 103, the first fin 102 is located at one end of the heat exchanger 10; the second fin 103 is located at the other end of the heat exchanger 10; wherein, along the direction from the first fin 102 to the second fin 103, the number of spray holes 201 is less than or equal to the ratio of the distance between the first fin 102 and the second fin 103 to the distance between adjacent fins 101.

[0040] In the embodiment of the present disclosure, the first fin 102 and the second fin 103 are respectively located at the two ends of the heat exchanger 10. It can be understood that the distance between the first fin 102 and the second fin 103 is the effective length of the heat exchanger 10. Along the setting direction of the multiple fins 101, the number of spray holes 201 is less than or equal to the ratio of the effective length of the heat exchanger 10 to the distance between adjacent fins 101. In this way, the multiple spray pipes 20 of the spray pipe 20 always have positions corresponding to the positions between the spray pipes 20 and the fins 101, so that the spray solution of the spray pipe 20 can be sprayed into the inner layer of the heat exchanger 10, thereby improving the cooling capacity. When the number of spray holes 201 is greater than the ratio of the effective length of the heat exchanger 10 to the distance between adjacent fins 101, the number of spray holes 201 is large, which will result in a smaller outlet pressure of the spray solution from the spray holes 201 downstream of the spray pipe 20, affecting the amount of the spray solution. Moreover, too many spray holes 201 will also reduce the strength of the spray pipe 20, causing the spray pipe 20 to be easily damaged. Therefore, the heat exchanger assembly of the embodiment of the present disclosure can not only allow the spray solution sprayed from the spray holes 201 to be sprayed between adjacent fins 101 to improve the cooling effect, but also reduce the processing difficulty and ensure the strength of the spray pipe 20.

[0041] Optionally, the spray solution may be a spray solution or a cooling liquid.

[0042] For example, the distance d between two adjacent fins 101 is 1.6 mm, and the distance L between the first fin 102 and the second fin 103 is 1500 mm. Then the maximum number of holes in the spray pipe 20 is n≤L / d=1500 / 1.6=937.5, where n is an integer of 937.

[0043] Optionally, the distance between two adjacent fins 101 may be 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, etc., which can reduce the difficulty of processing.

[0044] Optionally, the distance between any two adjacent spray holes 201 is greater than or equal to the distance between any two adjacent fins 101 .

[0045] In the embodiment of the present disclosure, the distance between any two adjacent spray holes 201 is greater than or equal to the distance between two adjacent fins 101, so that the distribution of the spray holes 201 is more uniform to ensure the strength of the spray pipe 20. Moreover, the distance between adjacent spray holes 201 is greater than or equal to the distance between adjacent fins 101, so that there are always some spray holes 201 that correspond to the positions between the fins 101, so that the spray solution sprayed from the spray holes 201 can be sprayed into the inner layer of the heat exchanger 10, thereby improving the cooling capacity. Moreover, if the distance between adjacent spray holes 201 is too small, it will also increase the difficulty of processing, and the processing accuracy requirements are high. Therefore, in the embodiment of the present disclosure, the minimum distance between two adjacent spray holes 201 is the distance between two adjacent fins 101, so that the spray solution sprayed from the spray holes 201 can be sprayed between adjacent fins 101, and the processing difficulty can be reduced to ensure the strength of the spray pipe 20.

[0046] Optionally, the multiple spray holes 201 of a spray pipe 20 are evenly arranged.

[0047] In the disclosed embodiment, the plurality of spray holes 201 are evenly arranged, thus ensuring the stability of the spray pressure of the plurality of spray holes 201 of the spray pipe 20. Furthermore, the structural strength of the spray pipe 20 can be improved, and the production cost and difficulty of the spray pipe 20 can be reduced.

[0048] Optionally, when the distance between adjacent spray holes 201 is equal to the distance between adjacent fins 101 , the spray holes 201 and the fins 101 are staggered.

[0049] In the disclosed embodiment, when the distance between adjacent spray holes 201 is equal to the distance between adjacent fins 101, the density of the spray holes 201 is the largest, which can ensure that the spray solution can be sprayed between every two fins 101, thereby increasing the contact area between the spray solution and the heat exchanger 10 and improving the cooling effect.

[0050] Optionally, the distance d between two adjacent spray holes 201 is ≤2Xtanα; wherein X is the shortest distance from the wall of the fin 101 facing the spray hole 201 to the spray pipe 20, and α is the angle between the outermost edge of the liquid outlet range of the spray hole 201 and the liquid outlet center line of the spray hole.

[0051] In the embodiment of the present disclosure, the distance between the fin 101 and the spray pipe 20 and the liquid discharge range of the spray hole 201 affect the liquid discharge range of the spray hole 201. In order to improve the comprehensiveness of the spray range of the spray pipe 20, as shown in FIG. Figure 1As shown, Y=Xtanα, the distance between two adjacent spray holes 201 is greater than 2Y, therefore, d≤2Xtanα, so that the spray solutions sprayed from the two adjacent spray holes 201 can be tangent or intersect with each other, which can avoid the existence of spray dead corners in the heat exchanger 10, ensure the spray range of the spray pipe 20, and improve the heat dissipation effect of the heat exchanger 10.

[0052] Optionally, the distance d between two adjacent spray holes 201 is less than 2Xtanα.

[0053] In the disclosed embodiment, the distance d between two adjacent spray holes 201 is less than 2Xtanα, so that the liquid outlet ranges of the two adjacent spray holes 201 can intersect. Compared with d=2Xtanα, the outer edges of the liquid outlet ranges of the two spray holes 201 are tangent. The intersection of the liquid outlet ranges of the two adjacent spray holes 201 can further reduce the spray dead angle of the heat exchanger 10 and increase the spray range.

[0054] Optionally, X≥D / tanα; wherein D is the distance between two adjacent fins 101 .

[0055] In the disclosed embodiment, X is the minimum distance between the fin 101 and the spray pipe 20, and X affects the range of the spray solution sprayed from the spray hole 201. Therefore, when the distance d ≤ Xtanα between two spray holes 201, X ≥ D / tanα can further ensure that the ranges of the spray solutions sprayed from the adjacent spray holes 201 can intersect, so as to increase the spray range of the spray pipe 20 and improve the heat dissipation effect.

[0056] Optionally, the heat exchanger assembly further includes a fan, which is disposed corresponding to the heat exchanger 10 and is used to drive airflow through the heat exchanger 10; Figure 3 and Figure 4 As shown, at least part of the spray holes 201 are inclined in a direction away from the fan.

[0057] In the disclosed embodiment, the fan is located on one side of the heat exchanger 10. The fan can drive the airflow to pass through the heat exchanger 10 after heat exchange and then flow out. The fan cools the heat exchanger 10 by air cooling. The spray device sprays the solution toward the heat exchanger 10 to reduce the temperature of the heat exchanger 10 by liquid cooling. The spray hole 201 is inclined in the direction away from the fan. The position of the heat exchanger 10 close to the fan has a larger contact area with the airflow blown by the fan, and the cooling effect of the heat exchanger 10 is better. In addition, the airflow generated by the fan is large. When the spray solution sprayed from the spray hole 201 is sprayed toward the fan, the spray solution sprayed from the spray hole 201 will be disturbed by the airflow, causing the spray solution to splash. In this way, the spray solution sprayed from the spray hole 201 can neither cool the heat exchanger 10 nor be easily carried to other positions by the airflow, affecting the normal operation of the heat exchanger 10. Therefore, the spray hole 201 is inclined in the direction away from the fan, so that the spray solution sprayed from the spray hole 201 is not affected by the fan.

[0058] Optionally, when the fan is located at the top of the heat exchanger 10, the spray pipe 20 is arranged in the middle or upper part of the heat exchanger 10, and at least part of the spray holes 201 are inclined downward.

[0059] In the disclosed embodiment, when the fan is located at the top of the heat exchanger 10, the spray pipe 20 can be located in the middle or upper part of the heat exchanger 10, and at least part of the spray holes 201 of the spray pipe 20 are tilted downward. In this way, the spray holes 201 spray the spray solution downward, increasing the contact area between the heat exchanger 10 below the heat exchange pipe and the spray solution, thereby improving the cooling effect. In addition, since the fan is located at the top of the heat exchanger 10, the air cooling heat exchange in the middle and lower parts of the heat exchanger 10 is improved.

[0060] Optionally, the fan is located at the top of the heat exchanger 10, and when the spray hole 201 is tilted downward, the tilt angle of the spray hole 201 ranges from 15 degrees to 60 degrees. Here, the tilt angle of the spray hole 201 refers to the angle between the hole wall of the spray hole 201 and the vertical direction.

[0061] In the disclosed embodiment, when the spray hole 201 is tilted downward, when the tilt angle of the spray hole 201 is less than 15 degrees, the tilt angle of the spray hole 201 is too small. When the distance between the spray pipe 20 and the fin 101 is constant, the amount of spray solution sprayed from the spray hole 201 to the heat exchanger 10 will be small, affecting the cooling effect. In order to ensure the amount of spray solution, the distance between the spray pipe 20 and the heat exchanger 10 is reduced, which is not convenient for installation, and will cause the spray solution sprayed from the spray hole 201 to affect the spray solution range of the spray hole 201. When the tilt angle of the spray pipe 20 is greater than 60 degrees, the tilt angle of the spray hole 201 is too large, the amount of spray solution sprayed to the lower layer is small, and the heat dissipation effect is poor. Therefore, when the fan is located at the top of the heat exchanger 10, the spray hole 201 tilts downward at the above angle to ensure the spray range of the heat exchanger 10 and improve the heat dissipation effect.

[0062] For example, when the fan is located at the top of the heat exchanger 10 and the spray hole 201 is tilted downward, the tilt angle of the spray hole 201 is 15 degrees, 20 degrees, 25 degrees, 30 degrees, 31 degrees, 32 degrees, 35 degrees, 45 degrees, 50 degrees, 60 degrees, etc.

[0063] Optionally, when the fan is located in the middle of the heat exchanger 10, the spray pipe 20 is arranged in the middle of the heat exchanger 10, and the spray pipe 20 extends in the horizontal direction of the spray solution. The multiple spray holes 201 include a first spray hole and a second spray hole. The number of the first spray holes is multiple, and the first spray holes are inclined upward; the number of the second spray holes is multiple, and the second spray holes are inclined downward; wherein, the multiple first spray holes and the multiple second spray holes are arranged in sequence along the length direction of the spray pipe 20.

[0064] In the disclosed embodiment, when the fan is located in the middle of the heat exchanger 10, in order to reduce the impact of the fan's airflow on the solution sprayed from the spray hole 201, the spray pipe 20 is arranged in the middle, and the spray holes 201 of the spray pipe 20 are spaced and tilted upward, so that the spray pipe 20 can spray the solution upward or downward at the same time, thereby increasing the spray range of the upper and lower parts of the heat exchanger 10 and ensuring the heat dissipation effect of the heat exchanger 10.

[0065] Optionally, when the fan is located in the middle of the heat exchanger 10, the first spray hole is tilted upward at an angle ranging from 30 degrees to 60 degrees; and / or, the second spray hole is tilted downward at an angle ranging from 30 degrees to 60 degrees. Here, the tilt angle of the first spray hole refers to the angle between the hole wall of the first spray hole and the vertical direction, and the tilt angle of the second spray hole refers to the angle between the hole wall of the second spray hole and the vertical direction.

[0066] In the disclosed embodiment, when the fan is located in the middle of the heat exchanger 10, the heat exchange tube is also located in the middle of the heat exchanger 10. At this time, the distance between the heat exchange tube and the upper end of the heat exchanger 10 and the lower end of the heat exchanger 10 is relatively short. Therefore, the minimum inclination angle of the spray hole 201 is 30 degrees. In this way, the spray solution sprayed from the spray hole 201 does not need to be sprayed a long distance in the height direction, thereby reducing the spray range of the spray hole 201 and increasing the spray pressure, so that the spray solution can penetrate into the inner layer of the heat exchanger 10, thereby improving the heat dissipation effect.

[0067] For example, the first spray hole is inclined upward at an angle of 30 degrees, 35 degrees, 38 degrees, 40 degrees, 45 degrees, 50 degrees or 60 degrees, etc. For example, the second spray hole is inclined downward at an angle of 30 degrees, 35 degrees, 38 degrees, 40 degrees, 45 degrees, 50 degrees or 60 degrees, etc.

[0068] Optionally, the spray pipe 20 is disposed on a side wall of the heat exchanger 10 , the fins 101 extend in a vertical direction, and the spray pipe 20 extends in a horizontal direction, so that the spray solution sprayed from the spray holes 201 can be sprayed between adjacent fins 101 .

[0069] Optionally, when the distance between the spray pipe 20 and the upper end of the heat exchanger 10 is greater than the distance between the spray pipe 20 and the lower end of the heat exchanger 10, the minimum inclination angle of the first spray hole is smaller than the minimum inclination angle of the second spray hole to increase the spray distance of the first spray hole in the height direction.

[0070] Optionally, when the distance between the spray pipe 20 and the upper end of the heat exchanger 10 is smaller than the distance between the spray pipe 20 and the lower end of the heat exchanger 10, the minimum inclination angle of the first spray hole is greater than the minimum inclination angle of the second spray hole to increase the downward spray distance of the first spray hole in the height direction.

[0071] Optionally, the inclination angles of multiple spray pipes 20 of one spray pipe 20 are the same, which facilitates the processing of the spray hole 201. It is understood that the inclination angles of multiple spray pipes 20 can also be different, and the inclination angles of the spray holes 201 at different positions can be set according to the length of the spray pipe 20, etc.

[0072] Optionally, the flow rate of the spray hole 201 is m≤Q / 236, where Q is the air volume of the fan.

[0073] In the disclosed embodiment, the flow rate of the spray hole 201 is related to the air volume of the fan, which can ensure that the sprayed spray solution can achieve the effect of lowering the inlet air temperature, thereby achieving both water-saving and temperature-reducing effects.

[0074] The simulation mode data of the heat exchanger assembly of the embodiment of the present disclosure is shown in Table 1:

[0075] Table 1

[0076]

[0077]

[0078] It can be seen from Table 1 that after the nominal cooling and maximum operating cooling modes, the nominal cooling refers to the cooling capacity marked by the air conditioner or refrigeration equipment under the rated operating conditions. After the heat exchanger 10 is sprayed with the spray device of the embodiment of the present invention for isenthalpic humidification, the inlet dry bulb temperature can be reduced and the energy efficiency of the whole machine can be significantly improved.

[0079] Alternatively, if Figure 5As shown, one spray device corresponds to one heat exchanger group, and one heat exchanger group includes one or more heat exchangers 10. When one heat exchanger group includes multiple heat exchangers 10, multiple heat exchangers 10 are arranged side by side in multiple layers. In this way, the spray device can spray into the interior of the multiple layers of heat exchangers 10, thereby improving the heat dissipation effect of the heat exchanger 10.

[0080] Optionally, one heat exchanger group is provided with one or more spray pipes 20, and a plurality of spray pipes 20 are arranged at intervals on the outside of the heat exchanger 10 to increase the spray range of the spray pipes 20 and improve the heat dissipation effect.

[0081] An embodiment of the present disclosure further provides an air conditioner, the air conditioner comprising an outdoor unit, the outdoor unit comprising a heat exchanger assembly as described in any one of the above embodiments.

[0082] The air conditioner provided in the embodiment of the present disclosure includes the heat exchanger assembly of any one of the above embodiments, and thus has the beneficial effects of the heat exchanger assembly of any one of the above embodiments, which will not be described in detail here.

[0083] Optionally, the air conditioner also includes a liquid inlet pipe, the liquid outlet end of the liquid inlet pipe is connected to the liquid inlet end of the spray pipe 20, and is used to provide a spray solution to the spray pipe 20; wherein, when the number of outdoor units is multiple and parallel, each outdoor unit is provided with a corresponding liquid inlet pipe, and the multiple liquid inlet pipes are connected in series, and along the flow direction of the spray solution in the multiple liquid inlet pipes, the diameters of the liquid inlet pipes corresponding to the multiple outdoor units gradually decrease.

[0084] In the disclosed embodiment, when multiple outdoor units are arranged in parallel, each outdoor unit includes a heat exchanger 10 and a spray device, and the liquid inlet end of the spray pipe 20 of each heat exchanger 10 is connected with a liquid inlet pipe. The liquid inlet pipes of multiple outdoor units are connected in series, so that the spray solution from the municipal pipeline or the liquid storage tank can first flow into the liquid inlet pipe, and then flow from the liquid inlet pipe to the spray pipes 20 of different heat exchangers 10. Along the flow direction of the spray solution in the multiple liquid inlet pipes, the diameters of the liquid inlet pipes corresponding to the multiple outdoor units gradually decrease, so that the diameter of the liquid inlet pipe corresponding to the i-th outdoor unit is smaller than the diameter of the liquid inlet pipe corresponding to the i-1th outdoor unit, where i is the number of outdoor units connected in parallel. In this way, since the downstream liquid inlet pipe is far away from the municipal pipeline or the liquid storage tank, the driving force for the flow of the spray solution is reduced. Therefore, the diameter of the liquid inlet pipe corresponding to the downstream outdoor unit is smaller than the diameter of the liquid inlet pipe corresponding to the upstream outdoor unit, which can increase the flow rate of the spray solution in the downstream liquid inlet pipe and ensure the spraying amount.

[0085] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heat exchanger assembly, characterized in that: include: A heat exchanger comprises a plurality of fins arranged side by side and spaced apart from each other, wherein the plurality of fins comprises a first fin and a second fin respectively located at two ends of the heat exchanger; The spray device includes one or more spray pipes, which are arranged outside the heat exchanger, extend along the arrangement direction of the plurality of fins, and are provided with a plurality of spray holes along the length direction of the spray pipe, so that the spray solution in the spray pipe can be sprayed to the heat exchanger through the spray holes; Wherein, along the arrangement direction of the plurality of fins, the maximum number of the spray holes is less than or equal to the ratio of the distance between the first fin and the second fin to the distance between two adjacent fins.

2. The heat exchanger assembly according to claim 1, characterized in that: The distance between any two adjacent spray holes is greater than or equal to the distance between any two adjacent fins.

3. The heat exchanger assembly according to claim 1, characterized in that: The distance between two adjacent spray holes is d≤2Xtanα; Wherein, X is the shortest distance from the wall of the fin facing the spray hole to the spray pipe, and α is the angle between the outermost edge of the liquid outlet range of the spray hole and the liquid outlet center line of the spray hole.

4. The heat exchanger assembly according to claim 3, characterized in that: X ≥ D / tanα; Wherein, D is the distance between two adjacent fins.

5. The heat exchanger assembly according to claim 1, characterized in that: Also includes: A fan, arranged corresponding to the heat exchanger, for driving air flow through the heat exchanger; At least part of the spray holes are inclined in a direction away from the fan; and / or the flow rate of the spray holes is m≤Q / 236, wherein Q is the air volume of the fan.

6. The heat exchanger assembly according to claim 5, characterized in that When the fan is located at the top of the heat exchanger, the spray pipe is arranged in the middle or upper part of the heat exchanger, and at least part of the spray holes are inclined downward; or, When the fan is located in the middle of the heat exchanger, the spray pipe is located in the middle of the heat exchanger, and the multiple spray holes include: There are multiple first spray holes, and the first spray holes are inclined upward; There are multiple second spray holes, and the second spray holes are inclined downward; Wherein, a plurality of first spray holes and a plurality of second spray holes are sequentially arranged at intervals along the length direction of the spray pipe.

7. The heat exchanger assembly according to claim 6, characterized in that When the fan is located at the top of the heat exchanger and the spray hole is tilted downward, the tilt angle of the spray hole ranges from 15 degrees to 60 degrees.

8. The heat exchanger assembly according to claim 6, characterized in that: When the fan is located in the middle of the heat exchanger, the first spray hole is inclined upward at an angle ranging from 30 degrees to 60 degrees; and / or, the second spray hole is inclined downward at an angle ranging from 30 degrees to 60 degrees.

9. An air conditioner, characterized in that: The invention comprises an outdoor unit, wherein the outdoor unit comprises the heat exchanger assembly according to any one of claims 1 to 8.

10. The air conditioner according to claim 9, characterized in that: Also includes: A liquid inlet pipe, the liquid outlet end of which is connected to the liquid inlet end of the spray pipe, and is used to provide spray solution to the spray pipe; When there are multiple outdoor units connected in parallel, each outdoor unit is provided with a corresponding liquid inlet pipe, and the multiple liquid inlet pipes are connected in series. Along the flow direction of the spray solution in the multiple liquid inlet pipes, the diameters of the liquid inlet pipes corresponding to the multiple outdoor units gradually decrease.

Images