Heat exchange assembly and indirect evaporative cooler

Abstract

The invention relates to the technical field of evaporative cooling refrigeration air conditioners, in particular to a heat exchange assembly and an indirect evaporative cooler, primary air of the heat exchange assembly passes through a first primary air inlet or enters a wet channel, then enters a first flow channel through the first primary air inlet, and then is exhausted through a first primary air outlet; secondary air enters the wet channel and circulates through the first secondary air inlet and / or the first secondary air outlet communicating with the wet channel, so that the secondary air can absorb heat of the primary air through evaporative cooling in the wet channel and can exchange heat with the primary air in the first flow channel when circulating in the second flow channel, and heat is absorbed; the heat exchange time is prolonged, and the heat exchange path is increased, so that the heat exchange efficiency can be improved, and the energy consumption during use is reduced. According to the indirect evaporative cooler, the heat exchange efficiency can also be improved, and the energy consumption during use is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of evaporative cooling refrigeration and air conditioning, and in particular to a heat exchange component and an indirect evaporative cooler. Background Art

[0002] At present, the microchannels arranged in the heat exchange plates of traditional indirect evaporative coolers serve as dry channels, and the cavities formed between the heat exchange plates serve as wet channels, and most of them are arranged in a cross-shaped manner. The primary air circulates through the dry channels, and the secondary air circulates through the wet channels, and heat exchange is carried out at the same time. That is, the air inlet and outlet of the primary air and the secondary air are both straight in and straight out, which will result in a shorter heat exchange path in the indirect evaporative cooler, making the heat exchange time too short, affecting the heat exchange efficiency of the indirect evaporative cooler, resulting in low overall efficiency, high energy consumption, and increased use costs. Summary of the invention

[0003] (i) The present invention provides an indirect evaporative cooler to alleviate the technical problems of low heat exchange efficiency and high energy consumption of the indirect evaporative cooler in the prior art.

[0004] (II) Technical solution

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a heat exchange component, including a wet channel and a heat exchange plate;

[0006] The wet channel cover is arranged on the heat exchange plate, and a relative water absorption film and a nozzle are arranged in the wet channel, and the water absorption film is arranged on the top wall of the heat exchange plate;

[0007] The wet channel is used to pass primary air or secondary air;

[0008] The heat exchange plate has a first end and a second end, and a first flow channel group and a second flow channel group are arranged in parallel in the heat exchange plate along the direction from the first end to the second end, the first flow channel group includes at least one first flow channel, and the second flow channel group includes at least one second flow channel;

[0009] The first flow channel is provided with a first primary air inlet and a first primary air outlet;

[0010] The second flow channel is provided with a first secondary air inlet and a first secondary air outlet, and the first secondary air inlet and / or the first secondary air outlet are communicated with the wet channel.

[0011] Furthermore, a dividing rib is provided in the wet channel, dividing the wet channel into two cavities, and the second flow channel is connected to one of the cavities.

[0012] Furthermore, the first primary air inlet is arranged at the first end, the first primary air outlet is arranged at the second end, the first secondary air inlet and the first secondary air outlet are arranged on the side wall of the second flow channel, and the first secondary air inlet is close to the first end, the first secondary air outlet is close to the second end, and the first primary air outlet and the first secondary air outlet are both connected to the wet channel.

[0013] Further, a second primary air inlet and a second primary air outlet are respectively arranged in the wet channel corresponding to the first end and the second end, and the second primary air inlet is connected to the first primary air inlet, and the second primary air outlet is connected to the first primary air outlet;

[0014] The second secondary air inlet and the second secondary air outlet are arranged in the wet channel on both sides of the dividing rib and are close to the second primary air inlet.

[0015] Furthermore, the first primary air inlet is arranged on the side wall of the first flow channel and is close to the first end, the first primary air outlet is arranged at the second end, the first secondary air inlet is arranged at the first end, the first secondary air outlet is arranged on the side wall of the second flow channel and is close to the second end, and the first primary air inlet and the first secondary air outlet are both connected to the wet channel.

[0016] Further, a second primary air outlet and a second secondary air inlet are respectively arranged at the wet channel corresponding to the first end and the second end, and the second primary air outlet is connected to the first primary air outlet, and the second secondary air inlet is connected to the first secondary air inlet;

[0017] The second primary air inlet and the second secondary air outlet are arranged in the wet channel on both sides of the dividing rib and are close to the second secondary air inlet.

[0018] Furthermore, a plurality of the first flow channel groups and a plurality of the second flow channel groups are alternately arranged in parallel.

[0019] Furthermore, the first primary air inlet and the first secondary air inlet are arranged at the first end, the first primary air outlet is arranged at the second end, the first secondary air outlet is arranged on the side wall of the second flow channel and close to the second end, the second primary air inlet and the second secondary air inlet are arranged in the wet channel corresponding to the first end, the second primary air outlet is arranged in the wet channel corresponding to the second end, and the second secondary air outlet is arranged on the wet channel on the side adjacent to the second primary air inlet.

[0020] Furthermore, the second flow channel is provided with a plurality of vent holes spaced apart on its side wall along its extension direction.

[0021] An embodiment of the present invention further provides an indirect evaporative cooler, comprising a frame strip and a plurality of the above-mentioned heat exchange components;

[0022] The plurality of heat exchange components are sequentially spaced apart in the thickness direction, and the projections of the plurality of heat exchange components in the thickness direction overlap;

[0023] The wet channel includes a frame bar, and the heat exchange plates of the adjacent heat exchange components are connected to the upper and lower ends of the frame bar.

[0024] A heat exchange component provided by the present invention includes a heat exchange plate and a wet channel, wherein the wet channel is arranged above the heat exchange plate, and a water absorbing film is arranged on a side connected to the wet channel for heat exchange, and a nozzle is arranged in the wet channel facing the water absorbing film to spray water on the water absorbing film to keep the water absorbing film moist. Since the first flow channel group and the second flow channel group are arranged in parallel along the direction from the first end to the second end of the heat exchange plate, primary air passes through the first primary air inlet or enters the wet channel and then enters the first flow channel through the first primary air inlet, and is then discharged through the first primary air outlet. At this time, secondary air enters the wet channel and circulates through the first secondary air inlet and / or the first secondary air outlet connected to the wet channel, so that the secondary air can not only absorb the heat of the primary air through evaporative cooling in the wet channel, but also can exchange heat with the primary air in the first flow channel when circulating in the second flow channel, absorb heat, prolong the heat exchange time, and increase the heat exchange path, thereby improving the heat exchange efficiency and reducing the energy consumption during use.

[0025] The present invention also provides an indirect evaporative cooler, comprising a plurality of the above-mentioned heat exchange components and border strips. The plurality of heat exchange components are stacked in sequence, and border strips are circumferentially arranged between adjacent heat exchange plates, which together enclose a wet channel, thereby effectively improving the heat exchange efficiency of the indirect evaporative cooler and reducing energy consumption during use.

[0026] The heat exchanger comprises a supporting mechanism and a plurality of heat exchange plates, wherein the plurality of heat exchange plates are arranged at intervals, and adjacent heat exchange plates are enclosed by frame strips arranged on a group of opposite sides thereof to form a wet channel, so that heat exchange is performed between the plurality of wet channels and the adjacent heat exchange plates, and at the same time, a mutually independent first flow channel and a second flow channel are provided in the heat exchange plate, the first flow channel is used for circulating primary air, and the second flow channel is used for circulating secondary air, the first primary air inlet of the first flow channel is connected to a primary air source, and the first secondary air inlet of the second flow channel is connected to a secondary air source, and at the same time, the first secondary air inlet and / or the first secondary air outlet of the second flow channel are also connected to the wet channel, so that the secondary air can not only absorb the heat of the primary air through evaporative cooling in the wet channel, but also perform heat exchange with the primary air in the first flow channel when circulating in the second flow channel, absorb heat, prolong the heat exchange time, and increase the heat exchange path, thereby improving the heat exchange efficiency and reducing the energy consumption during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 An appearance structure diagram of an indirect evaporative cooler provided by an embodiment of the present invention;

[0029] Figure 2 A plan view of the structure of a first heat exchange assembly provided by an embodiment of the present invention;

[0030] Figure 3 A plan view of the structure of a second heat exchange assembly provided by an embodiment of the present invention;

[0031] Figure 4 A plan view of the structure of a third heat exchange assembly provided by an embodiment of the present invention;

[0032] Figure 5 A plan view of the structure of a fourth heat exchange assembly provided by an embodiment of the present invention;

[0033] Figure 6 A plan view of the structure of a fifth heat exchange assembly provided by an embodiment of the present invention;

[0034] Figure 7 A plan view of the structure of a sixth heat exchange component provided in an embodiment of the present invention.

[0035] icon:

[0036] 100-wet channel; 101-frame strip; 102-second primary air inlet; 103-second primary air outlet; 104-second secondary air inlet; 105-second secondary air outlet;

[0037] 200-heat exchange plate; 201-first flow channel; 202-second flow channel; 203-first primary air inlet; 204-first primary air outlet; 205-first secondary air inlet; 206-first secondary air outlet; 207-ventilation hole;

[0038] 300-Separator ribs. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the inside of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0042] like Figures 2 to 7As shown, the present invention provides a heat exchange component, including a wet channel 100 and a heat exchange plate 200; the wet channel 100 is covered on the heat exchange plate 200, and relative water absorption films and nozzles are arranged in the wet channel 100, and the water absorption film is arranged on the top wall of the heat exchange plate 200; the wet channel 100 is used to pass primary air or secondary air; the heat exchange plate 200 has a first end and a second end, and a first flow channel group 201 and a second flow channel group 202 are arranged in parallel in the direction from the first end to the second end in the heat exchange plate 200, the first flow channel group 201 includes at least one first flow channel 201, and the second flow channel group 202 includes at least one second flow channel 202; the first flow channel 201 is provided with a first primary air inlet 203 and a first primary air outlet 204; the second flow channel 202 is provided with a first secondary air inlet 205 and a first secondary air outlet 206, and the first secondary air inlet 205 and / or the first secondary air outlet 206 are connected to the wet channel 100.

[0043] In this embodiment, a heat exchange plate 200 and a wet channel 100 are included. The wet channel 100 is arranged above the heat exchange plate 200, and a water-absorbing film is provided on the side of the heat exchanger communicating with the wet channel 100. A nozzle facing the water-absorbing film is provided in the wet channel 100 to spray water on the water-absorbing film to keep the water-absorbing film moist. Since the first flow channel 201 group and the second flow channel 202 group are arranged in parallel along the direction from the first end to the second end of the heat exchange plate 200, the primary air passes through the first primary air inlet 203 or enters the wet channel 100 and then enters the first flow channel through the first primary air inlet 203. 201, and then discharged through the first primary air outlet 204. At this time, the secondary air enters the wet channel 100, and circulates through the first secondary air inlet 205 and / or the first secondary air outlet 206 connected to the wet channel 100, so that the secondary air can not only absorb the heat of the primary air through evaporative cooling in the wet channel 100, but also exchange heat with the primary air in the first channel 201 when circulating in the second channel 202, absorb heat, extend the heat exchange time, and increase the heat exchange path, so as to improve the heat exchange efficiency and reduce the energy consumption during use.

[0044] The water-absorbing film is laid flat on the outer surface of the heat exchange plate 200 and is welded by using a welding machine. During the welding process, it is necessary to ensure that the water-absorbing film does not move.

[0045] Preferably, the first flow channel 201 and the second flow channel 202 are arranged in parallel and close to each other along the direction from the first end to the second end, so that the primary air and the secondary air can exchange heat during the circulation process.

[0046] Primary air refers to the useful airflow sent to the place of use after treatment, and secondary air refers to the airflow discharged after heat exchange. When the heat exchange component processes fresh air, both the primary air and secondary air inlets are fresh air. When the indirect evaporation core processes indoor return air, the primary air is indoor return air and the secondary air is fresh air. The two air inlets should be separated by air ducts.

[0047] According to an embodiment provided by the present invention, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a dividing rib 300 is provided in the wet channel 100 and divides the wet channel 100 into two cavities, and the second flow channel 202 is connected to one of the cavities.

[0048] In this embodiment, a partition rib 300 is provided in the wet channel 100, and the wet channel 100 is divided into two cavities by the partition rib 300, and the two cavities are independent of each other, and the partition rib 300 forms an angle with the first flow channel 201 and the second flow channel 202, wherein, optionally, the angle ranges from 0° to 90°, and the first and second air inlets 205 connected to the wet channel 100 are connected to the cavity on one side of the partition rib 300, which is equivalent to that one end of the partition rib 300 needs to cover the first and second air inlets 205 connected to the wet channel 100 at the first end, so that the primary air or secondary air entering the wet channel 100 can enter the first flow channel 201 or the second flow channel 202 along the first primary air inlet 203 or the first and second air inlet 205 under the action of the partition rib 300. The partition rib 300 can both support the thickness of the wet channel 100 and play a role in closing the airflow.

[0049] According to an embodiment provided by the present invention, Figure 2 and Figure 3 As shown, the first primary air inlet 203 is arranged at the first end, the first primary air outlet 204 is arranged at the second end, the first secondary air inlet 205 and the first secondary air outlet 206 are arranged on the side wall of the second flow channel 202, and the first secondary air inlet 205 is close to the first end, and the first secondary air outlet 206 is close to the second end, and the first primary air outlet 204 and the first secondary air outlet 206 are both connected to the wet channel 100.

[0050] In this embodiment, when the first flow channel 201 is not connected to the wet channel 100, the first primary air inlet 203 is arranged at the first end, and the first primary air outlet 204 is arranged at the second end, that is, the two ends of the first flow channel 201 are connected, the first secondary air inlet 205 and the first secondary air outlet 206 are arranged on the side wall of the second flow channel 202, and the first secondary air inlet 205 is close to the first end, and the first secondary air outlet 206 is close to the second end, that is, both ends of the second flow channel 202 are blocked, and a vent 207 is opened on the side wall near the end as the first secondary air inlet 205 and the first secondary air outlet 206, and the first secondary air inlet 205 and the first secondary air outlet 206 are both connected to the wet channel 100.

[0051] Among them, optionally, a plurality of ventilation holes 207 may be provided on the side wall of the second flow channel 202 at intervals along the extension direction of the second flow channel 202, and the above ventilation holes 207 are all connected to the wet channel 100. When the secondary air flows in the second flow channel 202, part of the gas will be discharged into the wet channel 100 each time it passes through a ventilation hole 207, and evaporative cooling will be performed in the wet channel 100 and heat exchange will be performed with the primary air in the first flow channel 201, thereby improving the heat exchange efficiency.

[0052] Furthermore, the second primary air inlet 102 and the second primary air outlet 103 are respectively arranged in the wet channel 100 corresponding to the first end and the second end, and the second primary air inlet 102 is connected to the first primary air inlet 203, and the second primary air outlet 103 is connected to the first primary air outlet 204; the second secondary air inlet 104 and the second secondary air outlet 105 are arranged in the wet channel 100 on both sides of the dividing rib 300, and are close to the second primary air inlet 102.

[0053] In this embodiment, the primary air enters the first flow channel 201 through the second primary air inlet 102 along the first primary air inlet 203 at the first end of the heat exchange plate 200, flows along the first flow channel 201 under the action of the fan pressure, and is discharged from the first flow channel 201 from the first primary air outlet 204 at the second end of the heat exchange plate 200, and is finally discharged from the second primary air outlet 103. At the same time, the secondary air enters the wet channel 100 through the second secondary air inlet 104 along the direction perpendicular to the primary air flow, and first undergoes an evaporative cooling process with the water adsorbed by the water absorption membrane. Due to the closed blocking effect of the dividing rib 300, preferably, the dividing rib 300 is inclined, with one end arranged on the side of the heat exchange plate 200 and the other end arranged on the top angle on the side opposite to the side. The secondary air can only pass through The first and second air inlets 205 arranged on the side wall of the second flow channel 202 enter the second flow channel 202 and flow along the second flow channel 202. Since the second flow channel 202 and the first flow channel 201 are parallel and close to each other, the primary air and the secondary air can exchange heat, and then enter the wet channel 100 again from the first and second air outlets 206 close to the second end for evaporative cooling and absorb the heat of the primary air in the first flow channel 201, and finally be discharged through the second secondary air outlet 105. Since the second secondary air outlet 105 is close to the second primary air inlet 102, and the second primary air inlet is arranged opposite to the first and second air outlet 206, the heat exchange time of the secondary air and the length of the heat exchange path can be effectively increased, thereby improving the heat exchange efficiency and reducing energy consumption during use.

[0054] According to an embodiment provided by the present invention, Figure 4 and Figure 5 As shown, the first primary air inlet 203 is arranged on the side wall of the first flow channel 201 and is close to the first end, the first primary air outlet 204 is arranged at the second end, the first secondary air inlet 205 is arranged at the first end, and the first secondary air outlet 206 is arranged on the side wall of the second flow channel 202 and is close to the second end. The first primary air inlet 203 and the first secondary air outlet 206 are both connected to the wet channel 100.

[0055] In this embodiment, the first primary air inlet 203 is arranged on the side wall of the first flow channel 201 and is close to the first end, and the first primary air outlet 204 is arranged at the second end, that is, the end of the first flow channel 201 located at the first end is blocked, and the first primary air inlet 203 is opened in the side wall, the first secondary air inlet 205 is arranged at the first end, and the first secondary air outlet 206 is arranged on the side wall of the second flow channel 202 and is close to the second end, that is, the end of the second flow channel 202 located at the second end is blocked, and the first secondary air outlet 206 is opened in the side wall, wherein, preferably, vents 207 are opened on the side walls of the first flow channel 201 and the second flow channel 202 near the blocked ends as the first primary air inlet 203 and the first secondary air outlet 206, and the first primary air inlet 203 and the first secondary air outlet 206 are both connected to the wet channel 100.

[0056] Furthermore, the second primary air outlet 103 and the second secondary air inlet 104 are respectively arranged in the wet channel 100 corresponding to the first end and the second end, and the second primary air outlet 103 is connected to the first primary air outlet 204, and the second secondary air inlet 104 is connected to the first secondary air inlet 205; the second primary air inlet 102 and the second secondary air outlet 105 are arranged in the wet channel 100 on both sides of the dividing rib 300, and are close to the second secondary air inlet 104.

[0057] In this embodiment, the primary air enters the wet channel 100 perpendicularly to the air flow direction in the first flow channel 201 and the second flow channel 202. Due to the closed blocking effect of the dividing rib 300, wherein preferably, the dividing rib 300 is vertically arranged, the primary air can only enter the first flow channel 201 through the first primary air inlet 203 arranged on the side wall of the first flow channel 201, flow along the first flow channel 201, and discharge the first flow channel 201 from the first primary air outlet 204 at the second end of the heat exchange plate 200, and finally discharge from the second primary air outlet 103. At the same time, the secondary air enters from the second secondary air inlet 104 arranged in the direction of the first end, and enters along the first secondary air inlet 205. The secondary air enters the second channel and flows along the second flow channel 202. Since the other end of the second flow channel 202 is blocked, the secondary air can only enter the wet channel 100 along the first secondary air outlet 206 provided on the side wall of the second flow channel 202. The water adsorbed by the water absorption membrane undergoes an evaporative cooling process in the wet channel 100, flows along the wet channel 100 and is finally discharged through the second secondary air outlet 105. Since the second secondary air outlet 105 is close to the second secondary air inlet 104, and the second secondary air inlet is relatively arranged to the first secondary air outlet 206, the heat exchange time of the secondary air and the length of the heat exchange path can be effectively increased, thereby improving the heat exchange efficiency and reducing the energy consumption during use.

[0058] According to an embodiment provided by the present invention, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a plurality of first flow channel groups 201 and a plurality of second flow channel groups 202 are alternately arranged in parallel.

[0059] In this embodiment, on the basis of the above two settings, optionally, the first flow channel 201 group is provided with a first flow channel 201, the second flow channel 202 group is provided with a second flow channel 202, and multiple first flow channel 201 groups and multiple second flow channel 202 groups are arranged alternately in parallel, that is, multiple first flow channels 201 and multiple second flow channels 202 are arranged alternately; in addition, the first flow channel 201 group is provided with multiple first flow channels 201, the second flow channel 202 group is provided with multiple second flow channels 202, and multiple first flow channels 201 groups and multiple second flow channels 202 groups are arranged alternately in parallel, that is, multiple parallel-arranged first flow channels 201 and multiple parallel-arranged second flow channels 202 are arranged alternately in parallel, wherein the number of microchannels contained in each first flow channel 201 combination and second flow channel 202 group can be different, and the number is not limited, that is, it can be two, three or more.

[0060] Optionally, there may be only one first flow channel group 201 and only one second flow channel group 202, but each of the first flow channel group 201 and the second flow channel group 202 includes multiple microchannels, and the number may be the same or different, which is not limited here.

[0061] like Figure 2 and Figure 3 As shown, the first flow channel 201 in a heat exchange component provided in this embodiment is connected at both ends for circulating primary air, and the second flow channel 202 is blocked at both ends. The secondary air is circulated through the first secondary air inlet 205 arranged near the first end on the side wall of the second flow channel 202 and connected to the wet channel 100, and the first secondary air outlet 206 arranged near the second end on the side wall of the second flow channel 202 and connected to the wet channel 100. Multiple first flow channel 201 groups and multiple second flow channel 202 groups can include one or more flow channels, and are alternately arranged, with no limit on the number, and the second secondary air outlet 105 is arranged at the first end, so that the primary air and the secondary air form a countercurrent form, which can effectively improve the heat exchange efficiency.

[0062] like Figure 4 and Figure 5As shown, the first flow channel 201 in a heat exchange component provided in this embodiment allows primary air to be taken in through a first primary air inlet 203 arranged at a side wall of the first flow channel near the first end and connected to the wet channel 100, and then directly discharges it through a first primary air outlet 204 arranged at the second end and unblocked; the second flow channel 202 allows secondary air to be taken in through a first secondary air outlet 206 arranged at the first end and unblocked, and then discharges the secondary air into the wet channel 100 through the first secondary air outlet 206 arranged at the side wall of the second flow channel 202 near the second end and connected to the wet channel 100 for evaporative cooling again and heat exchange with the primary air; multiple first flow channel 201 groups and multiple second flow channel 202 groups can include one or more flow channels, and are alternately arranged, with no limit on the number; and the second secondary air outlet 105 is arranged at the first end, so that the primary air and the secondary air form a countercurrent form, which can effectively improve the heat exchange efficiency.

[0063] like Figure 6 As shown, in a heat exchange component provided in this embodiment, both ends of the first flow channel 201 are connected for circulating primary air, and both ends of the second flow channel 202 are blocked. The secondary air circulates through a first secondary air inlet 205 arranged near the first end on the side wall of the second flow channel 202 and connected to the wet channel 100, and a first secondary air outlet 206 arranged near the second end on the side wall of the second flow channel 202 and connected to the wet channel 100. At the same time, a plurality of air vents 207 are arranged at intervals on the side wall of the second flow channel 202, which can improve the heat exchange efficiency between the secondary air and the primary air. The first flow channel 201 group includes a plurality of first flow channels 201, and the second flow channel 202 group includes a plurality of second flow channels 202. The first flow channel 201 group and the second flow channel 202 group are arranged in parallel, and the second secondary air outlet 105 is arranged at the first end, so that the primary air and the secondary air form a cross flow form, which can effectively improve the heat exchange efficiency.

[0064] According to an embodiment provided by the present invention, Figure 7 As shown, the first primary air inlet 203 and the first secondary air inlet 205 are arranged at the first end, the first primary air outlet 204 is arranged at the second end, the first secondary air outlet 206 is arranged on the side wall of the second flow channel 202 and close to the second end, the second primary air inlet 102 and the second secondary air inlet 104 are arranged in the wet channel 100 corresponding to the first end, the second primary air outlet 103 is arranged in the wet channel 100 corresponding to the second end, and the second secondary air outlet 105 is arranged in the wet channel 100 on one side adjacent to the second primary air inlet 102.

[0065] In this embodiment, the first primary air inlet 203 is arranged at the first end, and the first primary air outlet 204 is arranged at the second end, that is, the two ends of the first flow channel 201 are connected, the first secondary air inlet 205 is arranged at the first end, and the first secondary air outlet 206 is arranged on the side wall of the second flow channel 202, and is close to the second end, that is, the end of the second flow channel 202 located at the second end is blocked, and the first secondary air outlet 206 is opened on the side wall, wherein, preferably, a vent 207 is opened on the side wall of the second flow channel 202 near the blocked end as the first secondary air outlet 206, and the first secondary air outlet 206 is connected to the wet channel 100.

[0066] The primary air and secondary air enter from the second primary air inlet 102 and the second secondary air inlet 104 at the first end respectively, and then enter the first flow channel 201 and the second flow channel 202 along the first primary air inlet 203 and the first secondary air inlet 205, and flow along the first flow channel 201 and the second flow channel 202 under the action of the fan. The secondary air flows to the first secondary air outlet 206 and then is discharged into the wet channel 100 for evaporative cooling to absorb heat, and is finally discharged from the second secondary air outlet 105, which can effectively improve the heat exchange efficiency.

[0067] like Figure 7 As shown, the first flow channel 201 in a heat exchange component provided in this embodiment is connected at both ends for circulating primary air, one end of the second flow channel 202 can directly allow secondary air to pass through, and the other end is blocked to circulate secondary air through a first secondary air outlet 206 arranged on the side wall of the second flow channel 202 near the second end and connected to the wet channel 100, and the second secondary air outlet 105 is arranged at the first end, so that the primary air and the secondary air form a cross flow form, which can effectively improve the heat exchange efficiency.

[0068] According to an embodiment provided by the present invention, Figure 7 As shown, the second flow channel 202 is provided with a plurality of vent holes 207 spaced apart on its side wall along its extension direction.

[0069] In this embodiment, the secondary air flows along the second flow channel 202. Each time it passes through a vent hole 207, a portion of the gas enters the wet channel 100 for evaporative cooling and absorbs the heat of the primary air in the first flow channel 201 until it reaches the final first secondary air outlet 206, which can effectively improve the heat exchange efficiency between the primary air and the secondary air. After absorbing the heat, the secondary air is discharged through the second secondary air outlet 105.

[0070] The present invention also provides an indirect evaporative cooler, such as Figure 1As shown, it includes a border strip 101 and multiple heat exchange components mentioned above; multiple heat exchange components are arranged in sequence at intervals along the thickness direction, and the projections of multiple heat exchange components along the thickness direction overlap; the wet channel 100 includes a border strip 101, and the heat exchange plates 200 of adjacent heat exchange components are connected to the upper and lower ends of the border strip 101.

[0071] In this embodiment, multiple heat exchange groups are stacked in sequence, and two adjacent heat exchange plates 200 are combined together by the frame bar 101, that is, the heat exchange plates 200 of adjacent heat exchange components are connected to the upper and lower ends of the frame bar 101, and can be enclosed to form a wet channel 100. Therefore, the heat exchange efficiency can be effectively improved through the heat exchange component.

[0072] Optionally, the wet channel 100 may further include a frame strip 101 and a top shell, and the upper and lower ends of the frame strip 101 are respectively connected to the heat exchange plate 200 and the top shell.

[0073] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat exchange component, characterized in that: It comprises a wet channel (100) and a heat exchange plate (200); The wet channel (100) is covered on the heat exchange plate (200), and a water absorption film and a nozzle are arranged opposite to each other in the wet channel (100), and the water absorption film is arranged on the top wall of the heat exchange plate (200); The wet channel (100) is used to pass primary air or secondary air; The heat exchange plate (200) has a first end and a second end, and a first flow channel (201) group and a second flow channel (202) group are arranged in parallel in the heat exchange plate (200) along a direction from the first end to the second end, the first flow channel (201) group includes at least one first flow channel (201), and the second flow channel (202) group includes at least one second flow channel (202); The first flow channel (201) is provided with a first primary air inlet (203) and a first primary air outlet (204); The second flow channel (202) is provided with a first secondary air inlet (205) and a first secondary air outlet (206), and the first secondary air inlet (205) and / or the first secondary air outlet (206) are in communication with the wet channel (100).

2. The heat exchange assembly according to claim 1, characterized in that: A dividing rib (300) is provided in the wet channel (100) and divides the wet channel (100) into two cavities, and the second flow channel (202) is connected to one of the cavities.

3. The heat exchange assembly according to claim 2, characterized in that: The first primary air inlet (203) is arranged at the first end, the first primary air outlet (204) is arranged at the second end, the first secondary air inlet (205) and the first secondary air outlet (206) are arranged on the side wall of the second flow channel (202), and the first secondary air inlet (205) is close to the first end, the first secondary air outlet (206) is close to the second end, and the first primary air outlet (204) and the first secondary air outlet (206) are both connected to the wet channel (100).

4. The heat exchange assembly according to claim 3, characterized in that: A second primary air inlet (102) and a second primary air outlet (103) are respectively arranged in the wet channel (100) corresponding to the first end and the second end, and the second primary air inlet (102) is connected to the first primary air inlet (203), and the second primary air outlet (103) is connected to the first primary air outlet (204); The second secondary air inlet (104) and the second secondary air outlet (105) are arranged in the wet channel (100) on both sides of the dividing rib (300) and are close to the second primary air inlet (102).

5. The heat exchange assembly according to claim 2, characterized in that: The first primary air inlet (203) is arranged on the side wall of the first flow channel (201) and is close to the first end; the first primary air outlet (204) is arranged at the second end; the first secondary air inlet (205) is arranged at the first end; the first secondary air outlet (206) is arranged on the side wall of the second flow channel (202) and is close to the second end; the first primary air inlet (203) and the first secondary air outlet (206) are both connected to the wet channel (100).

6. The heat exchange assembly according to claim 5, characterized in that: The second primary air outlet (103) and the second secondary air inlet (104) are respectively arranged in the wet channel (100) corresponding to the first end and the second end, and the second primary air outlet (103) is connected to the first primary air outlet (204), and the second secondary air inlet (104) is connected to the first secondary air inlet (205); The second primary air inlet (102) and the second secondary air outlet (105) are arranged in the wet channel (100) on both sides of the dividing rib (300) and are close to the second secondary air inlet (104).

7. The heat exchange assembly according to any one of claims 3 to 6, characterized in that: A plurality of the first flow channel (201) groups and a plurality of the second flow channel (202) groups are alternately arranged in parallel.

8. The heat exchange assembly according to claim 1, characterized in that: The first primary air inlet (203) and the first secondary air inlet (205) are arranged at the first end, the first primary air outlet (204) is arranged at the second end, the first secondary air outlet (206) is arranged on the side wall of the second flow channel (202) and is close to the second end, the second primary air inlet (102) and the second secondary air inlet (104) are arranged in the wet channel (100) corresponding to the first end, the second primary air outlet (103) is arranged in the wet channel (100) corresponding to the second end, and the second secondary air outlet (105) is arranged in the wet channel (100) on a side adjacent to the second primary air inlet (102).

9. The heat exchange assembly according to claim 8, characterized in that: The second flow channel (202) is provided with a plurality of ventilation holes (207) at intervals on its side wall along its extension direction.

10. An indirect evaporative cooler, characterized in that: It comprises a frame strip (101) and a plurality of heat exchange components according to any one of claims 1 to 9; The plurality of heat exchange components are sequentially spaced apart in the thickness direction, and the projections of the plurality of heat exchange components in the thickness direction overlap; The wet channel (100) comprises a frame strip (101), and the heat exchange plates (200) of the adjacent heat exchange components are connected to the upper and lower ends of the frame strip (101).

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