Heat exchange mechanism

Abstract

The utility model relates to the technical field of evaporative cooling refrigeration air conditioners, in particular to a heat exchange mechanism which is used for an indirect evaporative cooler and comprises a wet channel, a heat exchange plate and a separation mechanism. The wet channel covers the heat exchange plate, a water absorption film is arranged on the face, facing the wet channel, of the heat exchange plate, and a spraying assembly opposite to the water absorption film is arranged in the wet channel. The heat exchange plate is provided with a first end and a second end, and a plurality of flow channels are formed in the heat exchange plate in the direction from the first end to the second end. The flow channel comprises a primary air inlet and a primary air outlet, the primary air inlet is formed in the first end and communicates with a primary air source, and the primary air outlet is formed in the second end; the partition mechanism is arranged in the wet channel and divides the wet channel into three independent cavities, an air channel is arranged on the side wall of the partition mechanism, the secondary air inlet is communicated with the cavity located at the second end, and the secondary air outlet is communicated with the cavity located at the first end. The heat exchange mechanism provided by the utility model has higher heat exchange efficiency and can reduce energy consumption.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporative cooling refrigeration air conditioning technical field, concretely relates to a heat exchange mechanism. BACKGROUND

[0002] At present, the microchannel arranged in the heat exchange plate of the traditional indirect evaporative cooler is used as a dry channel, the cavity formed between the heat exchange plates is used as a wet channel, and the dry channel and the wet channel are mostly arranged in a cross manner, and the primary air and the secondary air enter the dry channel and the wet channel in the same direction at the same time to exchange heat, which can cause the heat exchange time in the indirect evaporative cooler to be too short, affect the heat exchange efficiency of the indirect evaporative cooler, make the overall efficiency low and the energy consumption large, and increase the use cost. SUMMARY

[0003] (I) The utility model provides a heat exchange mechanism, alleviate the technical problem that the heat exchange efficiency is low because of the too short heat exchange time in the prior art.

[0004] (II) TECHNICAL SCHEME

[0005] In order to solve the above technical problems, the embodiment of the utility model provides a heat exchange mechanism for an indirect evaporative cooler, which comprises a wet channel, a heat exchange plate and a separation mechanism.

[0006] The wet channel is arranged on the heat exchange plate, one side of the heat exchange plate facing the wet channel is provided with a water absorption film, and the wet channel is provided with a spraying assembly opposite to the water absorption film.

[0007] The heat exchange plate has a first end and a second end, and a plurality of flow channels are arranged in the heat exchange plate along the direction from the first end to the second end.

[0008] The flow channel comprises a primary air inlet and a primary air outlet, the primary air inlet is arranged at the first end and communicates with a primary air source, and the primary air outlet is arranged at the second end.

[0009] The separation mechanism is arranged in the wet channel and divides the wet channel into three independent cavities, the side wall of the separation mechanism is provided with an air duct, a secondary air inlet communicates with the cavity at the second end, and a secondary air outlet communicates with the cavity at the first end.

[0010] Further, the separation mechanism comprises two frame strips and a separation rib, the two frame strips are arranged on a pair of opposite sides of the wet channel, and the end of the separation rib and the end of the frame strip are sequentially connected end to end to form a spraying cavity.

[0011] Further, the wet channels on both sides of the spraying cavity form the cavity.

[0012] Further, the air duct is arranged on the partitioning rib, and the secondary air flows between the cavity and the spray cavity.

[0013] Further, the partitioning rib is arranged obliquely on the wet channel.

[0014] Further, the spray cavity is in the shape of a parallelogram in section.

[0015] Further, a group of opposite vertex angles of the spray cavity coincide with a group of opposite vertex angles of the wet channel.

[0016] Further, the spray assembly comprises a spray head arranged on the spray cavity and opposite to the water absorption film.

[0017] Further, the primary air inlet and the secondary air inlet are connected with the air blower.

[0018] Further, the plurality of flow channels are parallel to each other.

[0019] The present application has the following beneficial effects:

[0020] The heat exchange mechanism comprises a wet channel, a heat exchange plate and a partitioning mechanism, the wet channel is arranged above the heat exchange plate, the heat exchange plate is provided with a plurality of flow channels along the direction from the first end to the second end, for circulating the primary air, and the wet channel is used for circulating the secondary air. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0022] Figure 1A whole structure plane schematic view of the heat exchange mechanism is provided for the embodiment of the utility model;

[0023] Figure 2 An indirect evaporative cooler appearance structure view formed by stacking the heat exchange mechanism is provided for the embodiment of the utility model;

[0024] Figure 3 A separation rib structure schematic view of the heat exchange mechanism is provided for the embodiment of the utility model.

[0025] Icon:

[0026] 100-wet channel, 101-secondary air inlet, 102-secondary air outlet;

[0027] 200-heat exchange plate, 201-flow channel, 202-primary air inlet, 203-primary air outlet;

[0028] 300-separation mechanism, 301-air duct, 302-border strip, 303-separation rib, 304-spraying cavity. DETAILED DESCRIPTION

[0029] The technical solutions of the utility model will be described below in conjunction with the embodiments, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0030] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "communication", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be direct communication, or indirect communication through intermediate medium, it can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two.

[0032] As Figures 1 to 3 The utility model provides a heat exchange mechanism for indirect evaporative cooler, including wet channel 100, heat exchange plate 200 and separation mechanism 300, wet channel 100 is covered in heat exchange plate 200, and the side of heat exchange plate 200 towards wet channel 100 is equipped with water absorption film, and wet channel 100 is equipped with the spray assembly opposite water absorption film, heat exchange plate 200 has first end and second end, and heat exchange plate 200 is equipped with a plurality of flow channel 201 along the direction of first end to second end in, flow channel 201 includes primary air inlet 202 and primary air outlet 203, and primary air inlet 202 is located in first end, and communicates with primary air source, and primary air outlet 203 is located in second end, separation mechanism 300 is located in wet channel 100, and wet channel 100 is divided into three independent cavities, and the lateral wall of separation mechanism 300 is equipped with air duct 301, and secondary air inlet 101 communicates with the cavity at second end, and secondary air outlet 102 communicates with the cavity at first end.

[0033] In the embodiment, the heat exchange mechanism includes wet channel 100, heat exchange plate 200 and separation mechanism 300, wet channel 100 is covered in heat exchange plate 200, heat exchange plate 200 is equipped with a plurality of flow channel 201 along the direction of first end to second end in, for the circulation of primary air, and wet channel 100 is used for the circulation of secondary air, because separation mechanism 300 separates wet channel 100 into three independent cavities, primary air enters flow channel 201 from primary air inlet 202 located in first end, and circulates along flow channel 201 to primary air outlet 203 located in second end and is discharged, secondary air enters wet channel 100 from secondary air inlet 101 located in second end, and circulates in three independent cavities through air duct 301, and exchanges heat with primary air in flow channel 201, and finally from secondary air outlet 102 located in first end, because the side of heat exchange plate 200 towards wet channel 100 is equipped with water absorption film, wet channel 100 is equipped with the spray assembly opposite water absorption film, can make water absorption film keep wet, and the evaporative cooling effect of secondary air in wet channel 100 is carried out, primary air and secondary air form counterflow form, can effectively increase heat exchange time, and then can effectively improve heat exchange efficiency, reduces energy consumption when using.

[0034] Optionally, the water absorption film is laid on the outer surface of the heat exchange plate 200 and is welded by using a welding machine, and the water absorption film is prevented from being displaced during the welding process.

[0035] As Figure 2As shown, the plurality of heat exchange assemblies are sequentially and spacedly arranged along the thickness direction of the heat exchange assemblies, and the projections of the plurality of heat exchange assemblies along the thickness direction are overlapped, forming an indirect evaporative cooler, that is, the side of the heat exchange plate 200 of the adjacent heat exchange assembly away from the wet channel 100 will serve as the top wall of the wet channel 100 of another heat exchange assembly, and the indirect evaporative cooler formed by the heat exchange mechanism provided in the embodiment can have a longer heat exchange time, thereby improving the heat exchange efficiency, so as to reduce the energy consumption during use.

[0036] According to one embodiment provided by the utility model, Figure 1 As shown, the separation mechanism 300 includes two frame strips 302 and a separation rib 303, the two frame strips 302 are arranged on a pair of opposite sides of the wet channel 100, and the end of the separation rib 303 is sequentially connected with the end of the frame strip 302 to form a spray cavity 304.

[0037] In the embodiment, the separation mechanism 300 includes two frame strips 302 and a separation rib 303, wherein the two frame strips 302 are oppositely arranged on a pair of opposite sides of the wet channel 100, and the end of the separation rib 303 is sequentially connected with the end of the frame strip 302, that is, one end of the separation rib 303 is connected with one end of the frame strip 302, the other end of the frame strip 302 is connected with one end of the second separation rib 303, the other end of the second separation rib 303 is connected with one end of the second frame strip 302, and the other end of the second frame strip 302 is connected with the end of the first separation rib 303 away from the first frame strip 302, that is, the ends are sequentially connected, and the spray cavity 304 is formed in the inside.

[0038] According to one embodiment provided by the utility model, Figure 1 As shown, the wet channel 100 on both sides of the spray cavity 304 forms a cavity.

[0039] In the embodiment, the two sides of the spray cavity 304 are two of the three independent cavities of the wet channel 100 separated by the separation mechanism 300, and the two cavities and the spray cavity 304 are communicated through the air duct 301 arranged on the separation mechanism 300, so as to flow twice, ensuring that the secondary air enters the first cavity through the secondary air inlet 101, and then enters the spray cavity 304 through the air duct 301 to perform evaporative cooling, exchanges heat with the primary air flowing in the flow channel 201, and finally enters another cavity from the spray cavity 304 and is discharged through the secondary air outlet 102.

[0040] According to one embodiment provided by the utility model, Figure 3As shown, the air duct 301 is arranged on the partition rib 303, and the secondary air flows between the cavity and the spray cavity 304.

[0041] In the embodiment, the air duct 301 is arranged on the partition rib 303, and in order to ensure the smoothness of the secondary air flowing between the cavity and the spray cavity 304, a plurality of air ducts 301 are arranged in parallel along the length direction of the partition rib 303, so that the stability of the secondary air flowing can be ensured.

[0042] According to one embodiment of the utility model, as shown in the figure, Figure 1 As shown, the partition rib 303 is arranged obliquely on the wet channel 100.

[0043] Further, the cross section of the spray cavity 304 is a parallelogram.

[0044] Further, the spray cavity 304 is a group of opposite top corners, and the wet channel 100 is a group of opposite top corners.

[0045] In the embodiment, the partition rib 303 is arranged obliquely on the wet channel 100, and preferably, the cross section of the spray cavity 304 is a parallelogram, which can effectively prolong the time of the secondary air in the spray cavity 304 for evaporative cooling, so as to improve the heat exchange efficiency of the secondary air and the primary air.

[0046] According to one embodiment of the utility model, the spray assembly comprises a spray head, the spray head is arranged in the spray cavity 304, and the spray head is arranged opposite to the water absorption film.

[0047] In the embodiment, the spray assembly comprises a spray head, one side of the heat exchange plate 200 communicated with the wet channel 100 is provided with a water absorption film, and the spray head in the wet channel 100 and the spray cavity 304 is arranged towards the water absorption film, and water is sprayed to the water absorption film, so that the water absorption film is kept wet.

[0048] According to one embodiment of the utility model, the primary air inlet 202 and the secondary air inlet 101 are connected with the fan.

[0049] In the embodiment, the primary air inlet 202 and the secondary air inlet 101 are connected with the fan, the primary air can flow along the flow channel 201 under the action of the fan, the secondary air can enter the wet channel 100 under the action of the fan, and flow to the spray cavity 304 along the cavity, and after evaporative cooling in the spray cavity 304, it enters another cavity, and finally is discharged from the secondary air outlet 102.

[0050] According to one embodiment of the utility model, as shown in the figure, Figure 1 As shown, the plurality of flow channels 201 are parallel to each other.

[0051] In the embodiment, the plurality of flow channels 201 arranged inside the heat exchange plate 200 are arranged from the first end to the second end and are parallel to each other, so that the primary air flowing in the flow channels 201 can be concentrated on the secondary air in the wet channel 100 for heat exchange.

[0052] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat exchange mechanism for an indirect evaporative cooler, comprising: The heat exchange plate (200) is covered by the wet channel (100), one side of the heat exchange plate (200) is provided with a water absorption film, and the wet channel (100) is provided with a spraying assembly opposite to the water absorption film. The heat exchange plate (200) has a first end and a second end, and a plurality of flow channels (201) are arranged in the heat exchange plate (200) from the first end to the second end. The flow channel (201) comprises a primary air inlet (202) and a primary air outlet (203), the primary air inlet (202) is arranged at the first end and communicates with a primary air source, and the primary air outlet (203) is arranged at the second end. The separation mechanism (300) is arranged in the wet channel (100) and divides the wet channel (100) into three independent cavities, the side wall of the separation mechanism (300) is provided with an air duct (301), a secondary air inlet (101) communicates with the cavity at the second end, and a secondary air outlet (102) communicates with the cavity at the first end. The separation mechanism (300) comprises two frame strips (302) and a separation rib (303), the two frame strips (302) are arranged on a pair of opposite sides of the wet channel (100), and the end of the separation rib (303) is sequentially connected with the end of the frame strip (302) in a head-to-tail manner to form a spraying cavity (304).

2. The heat exchange mechanism according to claim 1, wherein The wet channel (100) on both sides of the spraying cavity (304) forms the cavity.

3. The heat exchange mechanism according to claim 2, wherein The air duct (301) is arranged in the separation rib (303) and is used for the secondary air to flow between the cavity and the spraying cavity (304).

4. The heat exchange mechanism according to claim 2, wherein The separation rib (303) is arranged in the wet channel (100) in an inclined manner.

5. The heat exchange mechanism according to claim 4, wherein The cross section of the spraying cavity (304) is a parallelogram.

6. The heat exchange mechanism according to claim 5, wherein A pair of opposite top corners of the spraying cavity (304) coincide with a pair of opposite top corners of the wet channel (100).

7. The heat exchange mechanism according to claim 6, wherein The spraying assembly comprises a spray head, the spray head is arranged in the spraying cavity (304), and the spray head is arranged opposite to the water absorption film.

8. The heat exchange mechanism according to claim 3, wherein The primary air inlet (202) and the secondary air inlet (101) are connected with a fan.

9. The heat exchange mechanism according to claim 1, wherein A plurality of flow channels (201) are parallel to each other.

10. The heat exchange mechanism according to any one of claims 1 to 9, wherein ​

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